| KOMATSU LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20220298749 | CONTROL SYSTEM, METHOD OF CONTROLLING WORK VEHICLE, AND WORK VEHICLE - A motor grader representing a work vehicle includes a steering mechanism and a control unit. The control unit controls the steering mechanism to maintain constant, a rate of change in a direction of travel per unit travel distance of the motor grader. | 09-22-2022 |
| 20220294283 | COIL, STATOR, MOTOR, AND MANUFACTURING METHOD OF STATOR - A coil includes a first coil piece, and a second coil piece coupled to the first coil piece. Each of the first coil piece and the second coil piece has a center portion arranged in a slot of a stator core, and an end portion protruding in an axial direction from the stator core. In the coil end portion, the end portion of the first coil piece and at least a part of the end portion of the second coil piece are arranged in the axial direction. | 09-15-2022 |
| 20220290401 | DISPLAY SYSTEM, REMOTE OPERATION SYSTEM, AND DISPLAY METHOD - A display system includes: an image acquisition unit that acquires each of a first image of a work site imaged by a first camera and a second image of the work site imaged by a second camera; a viewpoint position calculation unit that calculates a viewpoint position of worker; a luminance adjustment unit that adjusts luminance of at least one of the first image and the second image based on the viewpoint position; and a display control unit that combines the first image and the second image having the luminance adjusted and causes a display device to display the combined image. | 09-15-2022 |
| 20220289012 | MOTOR GRADER - A motor grader in which a motive power source of an electric motor can appropriately be arranged is provided. The motor grader includes a front frame, a rear frame, and a coupling shaft. The rear frame is arranged in the rear of the front frame. The coupling shaft couples the front frame to the rear frame as being pivotable with respect to the rear frame. The motor grader includes a front wheel rotationally driven to run the motor grader, the electric motor that generates driving force for rotationally driving the front wheel, and a battery in which electric power supplied to the electric motor is stored. The battery is arranged in front of the coupling shaft. | 09-15-2022 |
| 20220281320 | OPERATION DEVICE AND WORK VEHICLE - An operation device is an operation device of a work vehicle having a load-carrying platform, which includes a gearshift instruction part configured to change a speed of the work vehicle by being operated in a forward/rearward direction, an elevating/lowering instruction part disposed in front of the gearshift instruction part and configured to operate elevation of the load-carrying platform, and a partitioning part configured to partition a space between the gearshift instruction part and the elevating/lowering instruction part in the forward/rearward direction. | 09-08-2022 |
| 20220275792 | HYDRAULIC PUMP MOTOR - A hydraulic pump motor includes: a cylinder block; a plurality of cylinder bores; a port block and a valve plate, the valve plate being provided with a high pressure port and a low pressure port, the port block being provided with a discharge oil passage and a suction oil passage, a piston disposed in each cylinder bore, and oil flowing through the discharge oil passage and the suction oil passage. Further, the valve plate is provided with a reproduction port at a bottom dead center side position, the port block is internally provided with a reproduction oil passage, and the reproduction oil passage passes through a first region on a side of the high pressure port of the virtual plane and passes through a second region on a side of the low pressure port of the virtual plane in the port block. | 09-01-2022 |
| 20220267995 | ENGINE CONTROL SYSTEM, WORK MACHINE, AND CONTROL METHOD FOR WORK MACHINE - An engine control system controls a work machine including an engine, a fuel injection device that injects fuel into the engine, and a hydraulic pump that is driven by the engine. The rotation state amount specification unit specifies a rotation state amount related to rotation of the engine. The injection amount determination unit determines a fuel injection amount by the fuel injection device based on the rotation state amount. | 08-25-2022 |
| 20220263356 | MOTOR - A motor includes a stator core, a coil disposed in slots of the stator core, and a rotor facing the stator core. When the number of poles of the rotor is P, the number of the slots of the stator core is S, and a natural number is N, conditions of P=7×N and S=12×N are satisfied. | 08-18-2022 |
| 20220259820 | CAB AND WORK VEHICLE - A cab includes: a console provided on a lateral side of an operator's seat; a base member including a support portion that pivotably supports the console between a normal posture in which the console is disposed to extend forward from the support portion and a tipped-up posture in which the console is disposed to extend upward from the support portion; and a tilt mechanism including a striker that is engaged with the console set in the normal posture and disengaged from the console set in the tipped-up posture, the tilt mechanism being capable of adjusting an angle of the console set in the normal posture. | 08-18-2022 |
| 20220259817 | WORK MACHINE - Tipping over of a work machine is prevented. The work machine includes: a vehicular body; a rear axle attached to the vehicular body to be capable of undergoing a roll motion with respect to an axis extending in a front-rear direction of the vehicular body; and a controller. The controller acquires stability of the center of gravity of the vehicular body, and controls the roll motion of the rear axle with respect to the vehicular body based on the stability. | 08-18-2022 |
| 20220255386 | COIL, STATOR, AND MOTOR - A coil includes a center portion arranged in a slot of a stator core, and an end portion protruding in an axial direction from the stator core. The end portion has a first portion, and a second portion thinner than the thickness of the first portion. | 08-11-2022 |
| 20220251808 | EVALUATION SYSTEM FOR WORK MACHINE AND EVALUATION METHOD FOR WORK MACHINE - An evaluation system for a work machine includes a work implement, a support unit for the work implement, a cylinder that causes the work implement to move with respect to the support unit, and an evaluation unit that evaluates a degree of fatigue of the support unit based on an axial force of the cylinder. | 08-11-2022 |
| 20220251803 | WORK MACHINE AND CONTROL SYSTEM FOR WORK MACHINE - A work machine is improved in manipulability. The work machine includes a manipulation device, an actuator, a surrounding area monitoring device, and a controller. The manipulation device is manipulated to operate the work machine. The actuator drives the work machine in a manner corresponding to a manipulation of the manipulation device. The surrounding area monitoring device serves as a device for detecting whether an object to be recognized is present or not inside a set region that is set in a surrounding area of the work machine. The controller controls the work machine. When a prescribed manipulation device is manipulated in a case where it is detected that the object is present inside the set region, the controller restricts an operation of the actuator corresponding to a manipulation of the manipulation device. | 08-11-2022 |
| 20220251802 | WORK MACHINE AND METHOD OF CONTROLLING WORK MACHINE - Occurrence of a skid due to revolution of a revolving unit is suppressed. A work machine includes a traveling unit, a revolving unit revolvably mounted on the traveling unit, and a controller that controls operations of the work machine. The controller determines whether or not a skid of the traveling unit has occurred in a revolving operation of the revolving unit during an automatic operation of the work machine. When the controller determines that the skid has occurred, it performs processing for weakening rotational inertial force generated in the revolving operation. | 08-11-2022 |
| 20220243427 | WORK MACHINE - A set area is appropriately set around a work machine. A hydraulic excavator includes a surroundings monitoring apparatus that detects whether or not an object to be recognized is present within a set area set around the hydraulic excavator, a sensor that detects change in position of a traveling unit with respect to a revolving unit, and a controller that controls the hydraulic excavator. The controller sets the set area in accordance with change in position of the traveling unit with respect to the revolving unit detected by the sensor. | 08-04-2022 |
| 20220235536 | WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE - A control method for a work vehicle, includes: calculating a speed ratio indicating a ratio between a rotation speed of an input shaft connected to an engine and a rotation speed of an output shaft connected to a traveling device; and outputting a capacity command for changing at least one of a capacity of a first hydraulic pump motor and a capacity of a second hydraulic pump motor based on correlation data indicating a relationship between the speed ratio and the capacities of the first and second hydraulic pump motors, wherein the correlation data is set so that both the capacity of the first hydraulic pump motor and the capacity of the second hydraulic pump motor are changed with a change in the speed ratio in a predetermined speed ratio range between a first speed ratio and a second speed ratio higher than the first speed ratio. | 07-28-2022 |
| 20220235533 | WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE - A control method for a work vehicle, includes: acquiring a signal for changing a state of a traveling device, to which power is transmitted via a transmission and a clutch, between forward, neutral, and reverse states; outputting a command for reducing a torque of an output shaft connected to the traveling device in a state where a first clutch is engaged, before a specified time elapses from a time point at which the signal for changing to the neutral state is acquired in a state where the first clutch is engaged; outputting a command for releasing the first clutch after the specified time elapses; and outputting a command for controlling the transmission so that a rotation speed of an input-side element of a second clutch to be engaged next coincides with that of an output-side element of the second clutch in a state where the first clutch is released. | 07-28-2022 |
| 20220230391 | DISPLAY SYSTEM AND DISPLAY METHOD - A display system for a work machine includes an acquisition unit configured to acquire three-dimensional data of a plurality of measurement points, a conversion unit configured to convert the three-dimensional data into a vehicle body coordinate system, an image generation unit configured to generate a reference image representing a three-dimensional shape of a terrain based on the three-dimensional data converted into the vehicle body coordinate system, and a display processing unit configured to display the reference image on a captured image in a superimposed manner. The image generation unit decides a display form of the reference image at a position of the reference image corresponding to each measurement point depending on a distance of the measurement point in a normal direction with respect to a ground surface of the work machine. | 07-21-2022 |
| 20220220849 | TUNNEL BORING MACHINE, MEASUREMENT METHOD, AND MEASUREMENT SYSTEM - A tunnel boring machine includes: a disc cutter including a cutter ring; and a member for use in measurement of a wear amount of the cutter ring with a three-dimensional shape measurement device, in which the member is provided at a part constant in relative position to the cutter ring. | 07-14-2022 |
| 20220220700 | WORK VEHICLE - A hydraulic excavator as a work vehicle includes: a revolving frame; and a cab. The cab includes: a floor member that faces the revolving frame, with a gap therebetween; a support base provided on the floor member and supporting an operator's seat; a pillar member connected to a left end of the floor member; and a reinforcing member connected to the pillar member and the support base. The hydraulic excavator further includes a restriction member provided in the gap and protruding from the floor member toward the revolving frame. The restriction member has a protrusion length shorter than a length of the gap in an up-down direction, and is provided below the support base. | 07-14-2022 |
| 20220220699 | CAB AND WORK VEHICLE - A cab includes: a pillar member; a beam member; and a rib member. The pillar member extends in an up-down direction. The beam member extends in a left-right direction. The beam member is connected to an upper end of the pillar member. The rib member is provided at a corner portion where the pillar member and the beam member intersect with each other. The rib member is connected to the pillar member and the beam member. The rib member is embedded in at least one of the pillar member and the beam member. | 07-14-2022 |
| 20220213825 | PREDICTION DEVICE, PREDICTION METHOD, AND WORK VEHICLE - A prediction device that predicts time for a reducing agent accommodated in a container mounted on a work vehicle to freeze includes a remaining amount information acquisition unit configured to acquire remaining amount information indicating a remaining amount of the reducing agent in the container, a wall surface temperature acquisition unit configured to acquire a detection result of a wall surface temperature of the container, a reducing agent temperature acquisition unit configured to acquire a detection result of a temperature of the reducing agent, and a time calculation unit configured to calculate the time for the reducing agent to freeze based on the wall surface temperature, the reducing agent temperature, and the remaining amount information. | 07-07-2022 |
| 20220212597 | SYSTEM OF CONTROLLING UNMANNED VEHICLE AND METHOD OF CONTROLLING UNMANNED VEHICLE - A system of controlling an unmanned vehicle includes: a travel course data acquisition unit that acquires travel course data including blinker data for controlling a blinker provided in an unmanned vehicle; an operation data acquisition unit that acquires operation data of a blinker operation device provided in the unmanned vehicle; and a blinker control unit that controls the blinker based on the blinker data acquired by the travel course data acquisition unit when the operation data is acquired by the operation data acquisition unit at a time when the unmanned vehicle operates based on the travel course data. | 07-07-2022 |
| 20220097784 | ROLLER UNIT OF CRAWLER TRAVEL UNIT, CRAWLER TRAVEL UNIT, AND WORK MACHINE - A shaft has an outer circumferential surface provided with a recessed portion in which a cooling medium is accommodated. A roller is rotatable relative to the outer circumferential surface of the shaft. A radial sliding bearing supports the roller to be rotatable relative to the outer circumferential surface of the shaft. A floating seal includes a rotating-side member that is supported by the roller and a fixed-side member that slides together with the rotating-side member. In a radial direction of the shaft, the recessed portion faces: a sliding portion between the rotating-side member and the fixed-side member in the floating seal: and the radial sliding bearing. | 03-31-2022 |
| 20220074165 | CONTROL SYSTEM FOR CONSTRUCTION MACHINE, CONSTRUCTION MACHINE, AND CONTROL METHOD FOR CONSTRUCTION MACHINE - A control system for a construction machine includes a target value generation unit configured to generate a target value of an amount of control of working equipment, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and a prediction model for the working equipment, and calculate an amount of drive to control the working equipment based on the predicted value, and a command unit configured to output a control command for control of the working equipment based on the amount of drive. | 03-10-2022 |
| 20220073094 | UNMANNED VEHICLE CONTROL SYSTEM AND UNMANNED VEHICLE CONTROL METHOD - An unmanned vehicle control system includes: a travel command unit that outputs a travel command for controlling a travel speed of an unmanned vehicle; a steering command unit that outputs a steering command for controlling a steering device of the unmanned vehicle; a response calculation unit that calculates a steering response of the steering device based on a target value of the steering device and a detected value of the steering device detected during a travel of the unmanned vehicle; a determination unit that determines whether the steering response satisfies a restrictive condition; and a restriction command unit that outputs a restriction command for restricting the travel speed when the steering response satisfies the restrictive condition. | 03-10-2022 |
| 20220010786 | PISTON AND HYDRAULIC PUMP OR MOTOR - A piston is provided with a piston body that includes an internal space and a leading end member that includes an insertion portion placed in the internal space and a protrusion protruding from a leading end surface of the piston body. | 01-13-2022 |
| 20210404027 | MACHINE COMPONENT - A machine component, made of steel or cast iron and having a circular hole that opens in a first surface, includes a plurality of first quench-hardened regions that include the first surface and are arranged apart from each other along a first circle surrounding the hole when viewed in a plane in a direction perpendicular to the first surface, and a base region that is a region other than the first quench-hardened regions. | 12-30-2021 |
| 20210395976 | WORK VEHICLE CONTROL DEVICE AND WORK VEHICLE - A control device of a work vehicle is provided with: a start operation determination unit that determines whether or not a generation state exists in which a start signal of a start switch for starting an electric motor has been generated; a lock state determination unit that determines whether or not a safe operation unit is in a lock state; a circuit state determination unit that determines whether or not a supply circuit is in a state of being capable of supplying power to the electric motor; and a drive instruction unit that, in the generation state and the lock state, outputs a drive instruction to the electric motor when the supply circuit transitions from a state of being incapable of supplying the power to a supply-capable state. | 12-23-2021 |
| 20210394659 | MINED MATERIAL TRANSPORT VEHICLE - A mined material transport vehicle includes: a vehicle main body capable of moving forward and rearward; and a loading platform provided on the vehicle main body, wherein the loading platform includes: a conveyor provided on the vehicle main body and having a conveying surface capable of conveying a mined material in a conveying direction extending in a forward-rearward directions; a pair of movable flaps that extend in the conveying direction on both sides in a vehicle width direction of the conveying surface, form a storage space together with the conveying surface, and are rotatable about lateral axial lines extending in the conveying direction; and lateral cylinders for rotating the movable flaps about the lateral axial lines. | 12-23-2021 |
| 20210381198 | WORK MACHINE - Lubricating performance of a parking brake is ensured and fuel efficiency during traveling is improved. A parking brake for braking rotation of an output shaft is disposed around the output shaft rotated by driving force. The output shaft is provided with an axial oil passage, a first discharge hole, and a second discharge hole. The axial oil passage extends in an axial direction of the output shaft. The first discharge hole and the second discharge hole communicate with the axial oil passage and open in an outer circumferential surface of the output shaft at an installation position of the parking brake in the axial direction. | 12-09-2021 |
| 20210381195 | WORK MACHINE, SYSTEM INCLUDING WORK MACHINE, AND METHOD OF CONTROLLING WORK MACHINE - A work machine capable of saving works by an operator during traveling is provided. The work machine includes a vehicular main body including a traveling unit, a work implement attached to the vehicular main body, and a controller that automatically controls operations by the work implement. The controller cancels automatic control of operations by the work implement based on a traveling state of the traveling unit. | 12-09-2021 |
| 20210381193 | WORK MACHINE - The invention includes a vehicle main body, a boom, a first actuator connecting the boom and the vehicle main body and configured to rotate the boom with respect to the vehicle main body about a first central axis, a first electric motor connected to the first actuator and that operates the first actuator. The boom includes a pair of boom lateral plates disposed to face each other in a direction of the first central axis, and a boom bottom plate connecting the boom lateral plates to each other, the first electric motor being disposed in a boom internal space surrounded by the pair of boom lateral plates and the boom bottom plate. | 12-09-2021 |
| 20210355652 | WORK EQUIPMENT FOR MOTOR GRADER - The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate. | 11-18-2021 |
| 20210354766 | CAB FOR WORK VEHICLE AND WORK VEHICLE - An operator seat is arranged in a cab. An air-conditioning unit is arranged in front of the operator seat. A lower window through which the outside can be seen from the inside of the cab is arranged in front of the operator seat and laterally to the air-conditioning unit. | 11-18-2021 |
| 20210350681 | WORK VEHICLE PERIPHERY MONITORING SYSTEM AND WORK VEHICLE PERIPHERY MONITORING METHOD - A work vehicle periphery monitoring system includes: an alarm range storage unit that stores an alarm range, in which an alarm output is required when an object is present, in a detection range of an object detection device that detects an object present in a periphery of a work vehicle; a work mode determination unit that determines a work mode of the work vehicle; an alarm range changing unit that changes the alarm range in the detection range when it is determined that the work mode is a specific work mode; and an alarm control unit that causes an alarm device to output an alarm when an object is present in the alarm range. | 11-11-2021 |
| 20210340727 | WORK VEHICLE - A wheel loader representing a work vehicle includes an operator's seat, a console, and an armrest. The console includes an operation portion. The console is provided lateral to the operator's seat. The armrest includes an upper surface. The armrest is provided lateral to the operator's seat and in the rear of the operation portion. The armrest operates independently of the console such that a rear end of the upper surface is laterally displaced in a top view. | 11-04-2021 |
| 20210317631 | BUCKET AND WORK VEHICLE - The bucket includes a bottom plate including a first deepest portion, a bracket provided on a back surface of the bottom plate, and a front lip. The bottom plate includes a first inclined portion on a side where the bracket is attached. A first reference straight line is defined that passes through a pivot axis of a bucket and a tip end of the front lip. A second reference straight line is defined that is orthogonal to the first reference straight line and passes through the first deepest portion. An angle formed between the second reference straight line and the front lip is smaller than an angle formed between the second reference straight line and the first inclined portion. An intersection point between the first reference straight line and the second reference straight line is located close to the front lip on the first reference straight line. | 10-14-2021 |
| 20210317630 | BUCKET AND WORK VEHICLE - A bottom plate includes a first deepest portion at which a length from a first reference straight line to the bottom plate is maximum. The first reference straight line passes through a front end portion of a front lip and a position at which a rear end portion of the bottom plate is contiguous to each of side plates. The first deepest portion is located on a second reference straight line orthogonal to the first reference straight line. A side end portion of each of the side plates is provided with a recessed portion. The recessed portion includes a second deepest portion at which a length from the first reference straight line to the recessed portion is maximum. The second deepest portion is located on the second reference straight line or located close to the front lip with respect to the second reference straight line. | 10-14-2021 |
| 20210316801 | TRACKED UNDERCARRIAGE COMPONENT, AND METHOD FOR PRODUCING THE SAME - A track link which is a tracked undercarriage component is made of a steel having a specific component composition, and includes a high hardness portion having a hardness of HRC 57 or more and HRC 60 or less, and a low hardness portion. The high hardness portion includes a first matrix including a martensite phase and a residual austenite phase, and first nonmetallic particles dispersed in the first matrix and including at least one species selected from the group consisting of MnS, TiCN, and NbCN, and it does not include a M | 10-14-2021 |
| 20210310354 | MINING SYSTEM - A mining system includes: a first tunnel that reaches a dump site and includes a first road surface; a second tunnel that crosses the first tunnel, reaches a mining site, and includes a second road surface positioned above the first road surface; a frame that includes a lower surface provided above the first road surface of the first tunnel and forming a transport passage between the first road surface and the lower surface and an upper surface forming a work road surface, on which a loading machine operates, together with the second road surface; and a moving vehicle that is capable of traveling on the first road surface and is capable of passing through the transport passage. | 10-07-2021 |
| 20210310216 | DISPLAY SYSTEM OF WORK MACHINE AND METHOD OF CONTROLLING THE SAME - A display system of a work machine includes a storage that stores time-series work machine motion information including motion information of the work machine, a motion image generator that generates a motion image of the work machine based on the work machine motion information, and a display that shows the motion image. | 10-07-2021 |
| 20210197688 | CHARGING CONTROL DEVICE, WORK MACHINE, AND CHARGING CONTROL METHOD - A charging control device ( | 07-01-2021 |
| 20210032849 | HYDRAULIC CONTROL SYSTEM, WORK MACHINE AND METHOD FOR CONTROLLING OPERATION OF A WORK ATTACHMENT - The invention refers to a hydraulic control system for controlling operation of a work attachment of a work machine, comprising a controller configured to output a work attachment control value controlling the operation of the work attachment, an operator input device configured to output a command signal depending on the amount of actuation of the operator input device for setting the work attachment control value, a save input device configured to generate a save command signal upon actuating the save input device and a mode select input device configured to select a first mode and a second mode, wherein the controller is configured to save a constant work attachment control value, wherein the constant work attachment control value is the work attachment control value as set by the command signal upon receiving the save command signal. | 02-04-2021 |
| 20210032846 | WORK ANALYSIS DEVICE AND METHOD OF WORK ANALYSIS - A work analysis device includes a state data acquisition unit state, a work specification unit, and an output unit. The data acquisition unit acquires state data indicating a state of a work machine. The work specification unit specifies, based on the acquired state data, a classification of work of the work machine for each of the multiple times, and collects the classification of work in a chronological order. The output unit outputs a time series of the specified classification of work. | 02-04-2021 |
| 20210032841 | BLADE CONTROL DEVICE AND BLADE CONTROL METHOD - A blade control method includes: acquiring a design surface indicating a target shape of an excavation object to be excavated by a blade supported by a vehicle body of a work vehicle, the design surface including a first surface present in front of the work vehicle and a second surface having a slope different from a slope of the first surface; acquiring an observed pitch angle indicating an inclination angle of the vehicle body in a longitudinal direction; and calculating a planned pitching angle indicating a deviation between the observed pitch angle and a design surface pitch angle indicating an inclination angle of the second surface in a state in which the vehicle body is positioned on the first surface and the blade is positioned above the second surface. | 02-04-2021 |
| 20210032837 | WHEEL LOADER AND METHOD FOR CONTROLLING WHEEL LOADER - A wheel loader includes: a front frame; a bucket; a boom having a distal end connected to bucket, and a proximal end rotatably supported by front frame; a sensor configured to measure a distance between boom and a loading target; and a controller configured to control an action of wheel loader. The controller causes wheel loader to perform a predetermined action for collision avoidance on condition that a distance to be measured by sensor when wheel loader travels takes a value less than or equal to a threshold value. | 02-04-2021 |
| 20210032737 | MACHINE COMPONENT - A machine component includes a core made up of a steel for machine structural use, and a medium carbon-containing layer and a high carbon-containing layer formed of the steel for machine structural use, the medium carbon-containing layer covering the core, the high carbon-containing layer covering the medium carbon-containing layer and having a carbon concentration of 0.8-1.5%. The high carbon-containing layer is made up of a martensitic structure having carbides dispersed therein and a residual austenitic structure, wherein spheroidized carbides with an aspect ratio of 1.5 or less constitute 90% or more of a total number of the carbides, and the number of spheroidized carbides on prior austenite grain boundaries is 40% or less of the total number of the carbides. | 02-04-2021 |
| 20210032716 | METHOD FOR PRODUCING MACHINE COMPONENT - A method for producing a machine component excellent in pitting resistance characteristics and toughness includes a carburizing step, performed on a steel material containing 0.13-0.30% C and 0.90-2.00% Cr in mass % and at least one of Si, Mn, Ni, Mo, Nb, V, Ti, B, Al, and N, balance Fe and unavoidable impurities; heating the material to 850-1030° C. to attain carbon concentration in a surface of 0.8-1.5%; cooling the material at an average rate of 5° C./sec or lower from a temperature higher than the A | 02-04-2021 |
| 20210011122 | WORK MACHINE CONTROL SYSTEM, WORK MACHINE, AND WORK MACHINE CONTROL METHOD - A work machine control method includes: acquiring a detection position of a landmark detected by a non-contact sensor provided in a work machine in traveling of the work machine traveling on a traveling path; calculating a first relative distance between the non-contact sensor and the landmark on a basis of the detection position of the landmark; calculating a second relative distance between the non-contact sensor and the landmark on a basis of a registration position of the landmark; calculating a correction value relating to a relative distance between the non-contact sensor and the landmark on a basis of the first relative distance and the second relative distance; correcting the first relative distance on a basis of the correction value to calculate a corrected relative distance between the non-contact sensor and the landmark; and controlling a traveling state of the work machine on a basis of the corrected relative distance. | 01-14-2021 |
| 20210010225 | LOADING MACHINE CONTROL DEVICE AND LOADING MACHINE CONTROL METHOD - A loading machine control device includes a measurement data acquisition unit acquiring measurement data of a measurement device mounted in a loading machine having working equipment, a target calculation unit calculating, based on the measurement data, a position of an upper end portion of a loading target to which an excavation object excavated by a bucket of the working equipment is loaded, a bucket calculation unit calculating position data of the bucket, an overlap determination unit determining whether the upper end portion of the loading target and the bucket that are in the measurement data overlap each other, and a working equipment control unit controlling the working equipment based on the measured position of the upper end portion of the loading target when it is determined that the upper end portion of the loading target and the bucket that are in the measurement data do not overlap each other. | 01-14-2021 |
| 20210009155 | UNMANNED VEHICLE CONTROL SYSTEM, UNMANNED VEHICLE, AND UNMANNED VEHICLE CONTROL METHOD - An unmanned vehicle control system includes: a travel condition data acquisition unit that acquires travel condition data specifying a travel condition of an unmanned vehicle, the travel condition data including a target travel speed and a target azimuth of the unmanned vehicle at each of a plurality of travel points; a travel condition change unit that outputs a change command to change the travel condition specified by the travel condition data based on a difference in the target azimuth among the plurality of travel points; and a travel control unit that outputs a control command to control traveling of the unmanned vehicle based on the change command. | 01-14-2021 |
| 20200408685 | THERMOELECTRIC POWER GENERATION APPARATUS - A thermoelectric power generation apparatus includes: a higher-temperature side heat conductor; a lower-temperature side heat conductor disposed at a distance from the higher-temperature side heat conductor; a thermoelectric power generation module including a higher-temperature side electrode that is in thermal contact with the higher-temperature side heat conductor, and a lower-temperature side electrode that is in thermal contact with the lower-temperature side heat conductor; a heat insulating member disposed between the higher-temperature side heat conductor and the lower-temperature side heat conductor, the heat insulating member accommodating the thermoelectric power generation module; and an integrating member provided separately from the heat insulating member. The higher-temperature side heat conductor and the lower-temperature side heat conductor are integrated with each other by the integrating member with the heat insulating member interposed therebetween. | 12-31-2020 |
| 20200407952 | HYDRAULIC EXCAVATOR AND SYSTEM - There is provided a hydraulic excavator allowing a simple configuration to be employed to determine a posture of a work implement accurately. The work implement and an imaging device are attached to a revolving unit. The work implement operates on a prescribed operating plane. The imaging device captures an image of the work implement at an angle larger than 0° with respect to the operating plane. The controller determines a position of the work implement relative to the revolving unit based on a posture of the work implement in the image captured by the imaging device. | 12-31-2020 |
| 20200407951 | WORK MACHINE AND SYSTEM INCLUDING WORK MACHINE - A time period for which an ineffective operation is performed during an excavation work is reduced. A work machine includes a vehicular body, a running wheel rotatably attached to the vehicular body, a work implement operable with respect to the vehicular body, an operation apparatus for operating the running wheel and the work implement, and a controller that controls an operation by the work machine. The controller determines that slip-during-excavation which refers to slip of the running wheel with respect to the ground is occurring during the excavation work based on an operation command value output from the operation apparatus and outputs a signal relating to working of the work implement. | 12-31-2020 |
| 20200293062 | WORK MACHINE MANAGEMENT SYSTEM - A work machine management system includes: an input data acquisition unit that acquires input data generated by an operation of an input device; a turn signal data setting unit that sets turn signal data for controlling a direction indicator of a work machine to each of a plurality of courses branching from an intersection based on the input data; and an output unit that outputs the turn signal data to the work machine. | 09-17-2020 |
| 20200263395 | WORK VEHICLE AND DISPLAY CONTROL METHOD - A work vehicle includes: a display device provided in a cab and configured to display work assistance information to be overlaid on an actual view of a work site; a bucket position detector configured to detect a position of a bucket; and a display controller configured to control a content to be displayed on the display device and configured to cause the work assistance information to be displayed around the bucket while causing the work assistance information to follow the movement of the bucket based on the detected position. When work assistance information becomes close to a boundary of a display area of the display device due to the movement of the bucket, the display controller is configured to cause the work assistance information to be displayed on the display device with a relative position between the work assistance information and the bucket in the display area being changed. | 08-20-2020 |
| 20200263394 | WORK MACHINE AND SYSTEM INCLUDING WORK MACHINE - Work contents by a work implement are more accurately distinguished. Work contents by the work implement include at least two of dozing, piling, and excavation and loading. A controller distinguishes work contents by the work implement. The controller identifies work contents during a period from start of the works until end of the works based on a result of distinction between at least two temporally distant work contents in work records during the period from the start of the works until the end of the works. | 08-20-2020 |
| 20200114874 | COMMUNICATION MONITORING DEVICE, COMMUNICATION MONITORING SYSTEM, AND COMMUNICATION MONITORING METHOD - A distribution information acquisition unit is configured to acquire distribution information including identification information of a user as a distribution destination of setting information which is used for access to a work vehicle. An access information acquisition unit is configured to acquire access information including identification information of the user who accesses the work vehicle. A fraudulence determination unit is configured to compare the identification information related to the access information with the identification information related to the distribution information to determine whether or not fraudulent access has occurred. | 04-16-2020 |
| 20190316220 | BEARING BUSHING FOR TRACK, AND METHOD FOR PRODUCING THE SAME | 10-17-2019 |
| 20190003155 | DISPLAY DEVICE AND DISPLAY SYSTEM OF WORK MACHINE - A display device for a work machine includes a display control unit that, based on image data obtained by a camera installed in the work machine, displays a calibration screen including surrounding display data which indicates the surrounding situation of the work machine, and calibration display data which is used in the calibration of the work machine. | 01-03-2019 |
| 20180373032 | WORK VEHICLE AND DISPLAY CONTROL METHOD - A work vehicle includes: a main body having a cab; a display device provided in the cab and configured to display work assistance information to be overlaid on an actual view of a work site; a display controller configured to cause the work assistance information to be displayed on the display device; and a bucket position detector configured to detect a position of a bucket relative to the main body. The display controller is configured to cause a display position of the work assistance information on the display device to follow a movement of the bucket. The display controller is configured to change a display manner of the work assistance information on the display device based on the position detected by the bucket position detector, when the bucket is moved relative to the cab in a forward direction and a rearward direction. | 12-27-2018 |
| 20180371724 | WORK VEHICLE AND METHOD FOR CONTROLLING WORK VEHICLE - A work vehicle includes a work implement, a main body, a display device, and a display controller. To the main body, the work implement is attached, and the main body has a cab. The display device is provided in the cab and configured to overlay and thus display work assistance information on an actual view of a work site. The display controller causes the display device to display target design topography as work assistance information. When a work starts, the display controller causes the display device to display final target design topography that is achieved after the work is completed, and subsequently, switches to displaying target design topography to be achieved depending on a working step performed. | 12-27-2018 |
| 20170175364 | CONSTRUCTION INFORMATION DISPLAY DEVICE AND METHOD FOR DISPLAYING CONSTRUCTION INFORMATION - A construction information display device configured to display construction information includes: a display unit configured to display at least a partial distribution map indicating a current landform and a design landform; an input unit through which a target surface is selected from the design landform; and a display processing unit configured to, when the target surface is selected through the input unit, display a range of the selected target surface while visibly displaying the partial distribution map within the selected target surface. | 06-22-2017 |
| 20170175358 | CAB AND BULLDOZER - Provided is a cab which can improve the workability of ripping. The cab includes an operator's seat placed in the cab and a right armrest placed rightward of the operator's seat in the cab. A front end portion of the operator's seat is tilted rightward with respect to a front-rear direction (the direction of X) of the cab as seen in a plan view. The right armrest includes a front region including a front end of the right armrest and a rear region including a rear end of the right armrest. The rear region includes a portion placed at a shorter distance from a midline bisecting the operator's seat as seen in a plan view, than a distance between the front region and the midline. | 06-22-2017 |
| 20170166021 | WORK VEHICLE, METHOD FOR OPERATING TOW APPARATUS, AND METHOD FOR ASSEMBLING TOW APPARATUS - A tow pin has a main body portion in a columnar shape and a first protrusion protruding outward from an outer circumferential surface of the main body portion. An upper bracket structure has a first through hole in which the main body portion is inserted and restricts passage of the first protrusion. A lower bracket is located under the upper bracket structure at a distance from the upper bracket structure and has a second through hole in which the tow pin can be inserted. The main body portion of the tow pin is inserted in at least the first through hole and the first protrusion is located under the upper bracket structure. | 06-15-2017 |
| 20170153649 | WORK MACHINE CONTROL SYSTEM, WORK MACHINE, WORK MACHINE MANAGEMENT SYSTEM, AND METHOD FOR CONTROLLING WORK MACHINE - A work machine control system includes a steering device configured to operate steering wheels of a work machine, a posture detector configured to detect a first azimuth as information on an orientation of the work machine, a steering angle detector configured to detect a steering angle of the steering device, an azimuth calculation unit configured to obtain a second azimuth of the work machine by using the steering angle detected by the steering angle detector, and a vehicle control unit configured to control the steering device by using either the first azimuth or the second azimuth, wherein the first azimuth or the second azimuth is switched to be transmitted to the vehicle control unit. | 06-01-2017 |
| 20160376772 | CONSTRUCTION MACHINE CONTROL SYSTEM AND CONSTRUCTION MACHINE CONTROL METHOD - A construction machine control system controls a construction machine including a traveling device, a work machine having a working tool, and a swing structure to which the work machine is attached and which is attached to the traveling device to swing with respect to the traveling device. The construction machine control system includes a position detection device that detects a first position which is a position of a partial portion of the construction machine and outputs the first position as first position information; a state detection device that detects and outputs operation information indicating an operation of the construction machine; and a processing device that calculates a second position corresponding to the position of the partial portion using the first position information and the operation information and calculates a position of at least a partial portion of the work machine using second position information. | 12-29-2016 |
| 20160185346 | MINING MACHINE, MANAGEMENT SYSTEM OF MINING MACHINE, AND MANAGEMENT METHOD OF MINING MACHINE - A mining machine includes a traveling device traveling a traveling path in a mine, a vehicle body supported by the traveling device, a non-contact sensor in a front section of the vehicle body which contactlessly detects an object in a detection area, and is arranged such that the traveling path in front of the vehicle body and an area beside the traveling path are included in the detection area, an obstacle detector detecting an obstacle in the traveling path in front of the vehicle body based on an output signal of the non-contact sensor, a distance detector a distance to a wall beside the traveling path based on an output signal of the non-contact sensor, and a traveling controller controlling the traveling device based on a detection result of at least one of the obstacle detection unit and the distance detection unit. | 06-30-2016 |
| 20160144860 | WORK VEHICLE - A hydraulic oil supply circuit of a work vehicle is configured to supply hydraulic oil to a transmission. A hydraulic oil warming circuit is configured to warm up the hydraulic oil. A control unit is configured to control the transmission, the hydraulic oil supply circuit, and the hydraulic oil warming circuit. The transmission includes a hydraulic clutch and a clutch control valve. The clutch control valve is configured to control the pressure of the hydraulic oil supplied to the hydraulic clutch according to a command from the control unit. When the control unit determines that the temperature of the hydraulic oil is low, it is configured to output a warming up command for operation of a warming up function. The hydraulic oil warming circuit is configured to warm up the hydraulic oil by causing a pressure loss in a flow path for the hydraulic oil. | 05-26-2016 |
| 20160144720 | WORK VEHICLE AND WORK VEHICLE CONTROL METHOD - A state display section of a work vehicle is configured to display whether an electricity storage apparatus is in an electricity charging or discharging state. A state determination unit is configured to determine the state to be displayed on the state display section on the basis of a parameter corresponding to electricity supplied to or discharged from the electricity storage apparatus. The state determination unit is configured to change a threshold for a parameter for determining if the state to be displayed on the state display section is to be set to the charging state (discharging state) based on whether or not the state displayed on the state display section most recently is the charging state (discharging state). Until a predetermined first time period elapses, the state determination section is configured to determine the state after the change as the state to be displayed on the state display section. | 05-26-2016 |
| 20160138240 | CONSTRUCTION MACHINE CONTROL SYSTEM, CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE CONTROL METHOD - A control system includes: a control valve control unit that controls a control valve; a data acquisition unit that acquires data on an operation command value and a cylinder speed in a state where an operation command for operating a hydraulic cylinder is output; and a deriving unit that derives operation characteristics in an operation direction of each of a plurality of hydraulic cylinders in relation to the operation command value based on the data acquired by the data acquisition unit. In acquisition of the data by the data acquisition unit, the control valve control unit controls a control valve of one pilot oil passage that is an acquisition object where the data is acquired among the plurality of pilot oil passages to open one pilot oil passage and controls control valves of the other pilot oil passages to close the other pilot oil passages. | 05-19-2016 |
| 20160130786 | WORK VEHICLE AND METHOD OF CONTROLLING SAME - A controller includes a neutral control determination unit, a forward-reverse clutch control unit, and a commanded torque setting unit. The neutral control determination unit executes quasi-neutral control when a quasi-neutral control determination condition is satisfied. The quasi-neutral control determination condition includes cases where the forward-reverse operation member is in the neutral position. The forward-reverse clutch control unit keeps the forward-travel clutch or the reverse-travel clutch engaged during the quasi-neutral control. During quasi-neutral control, the commanded torque setting unit determines a commanded torque sent to the motor so that a neutral state is set where the output torque from the power transmission device to the travel device is kept at a prescribed value regardless of the drive power output from the engine. | 05-12-2016 |
| 20160124050 | STORAGE BATTERY TYPE VEHICLE, CHARGE MANAGEMENT SYSTEM, AND CHARGE MANAGEMENT METHOD - A storage battery type vehicle configured to charge a storage battery mounted on a vehicle via a charging cable connecting the vehicle to a stationary battery charger fixed outside the vehicle, the storage battery type vehicle including: a state information acquisition unit configured to acquire state information of the stationary battery charger via the charging cable; and a communication unit configured to transmit the state information to outside. | 05-05-2016 |
| 20160114837 | CAB AND WORK MACHINE - A base has a second bracket extending toward a back panel. A controller main body is arranged between the base and the back panel, and fixed to the second bracket. In a plan view, at least a part of the controller main body is arranged between the base and the floor portion so as to overlap with the base, and a bolt fixing the controller main body to the second bracket is arranged between a rear end of the base and the back panel. | 04-28-2016 |
| 20160102445 | WHEEL LOADER - A wheel loader includes: a mechanical drive unit; an HST pump that feeds a hydraulic oil for travelling; an accessory hydraulic pump that feeds a hydraulic oil for a bucket; first and second hydraulic motors driven by the hydraulic oil from the HST pump; and a power combining unit configured to combine powers of the first and second hydraulic motors with a power of the mechanical drive unit, in which the mechanical drive unit is provided between an engine shaft to an output shaft with a shaft center, the power combining unit is configured to combine the power of the mechanical drive unit with the powers of the first and second hydraulic motors at a position above the output shaft, and the first and second combining gears and a gear, to which combined powers are transmitted, are disposed between the first and second hydraulic motors and the output shaft. | 04-14-2016 |
| 20160068206 | CRAWLER BELT AND MASTER LINK FOR CRAWLER BELT - A crawler belt and a master link for use in the crawler belt enable easy connection and disconnection of the crawler belt. The crawler belt has a track chain in which a plurality of regular links are pivotally connected at their ends, the master link for connecting the of the track chain to form the crawler belt into a loop, and track shoes attached to the regular links and the master link respectively. The crawler belt has a slit aperture which leads only to a pin insertion hole formed at the other end of the master link and is configured such that a clamping force, generated by tightening a master bolt that imparts a tightening force to the master link to narrow the slit aperture, is allowed to work on only the regular pin inserted into a pin insertion hole leading to the slit aperture. | 03-10-2016 |
| 20160059854 | TRANSPORTER VEHICLE AND TRANSPORTER VEHICLE CONTROL METHOD - A transporter vehicle includes: a vehicle; an object detection device which includes a detection area at a front side of the vehicle and detects an object at the front side of the vehicle; a process system capable of performing a process for reducing damage caused by a collision; a specific detection area setting unit which sets a specific detection area having a width of a first dimension in a width direction of the vehicle and a length of a second dimension in a traveling direction of the vehicle in the detection area; a collision determination unit which determines whether an object exists in the specific detection area based on a detection result of the object detection device; and a control unit which outputs a signal for reducing damage caused by the collision to the process system based on a determination result of the collision determination unit. | 03-03-2016 |
| 20160053463 | WORK VEHICLE - A wheel loader includes an engine, an engine compartment, an injection device, a top plate and a first guide member. The injection device is disposed in the engine compartment. The top plate has a ventilation part. The ventilation part is disposed in a position horizontally away from the injection device. The first guide member has a guide body. The guide body is disposed along the top plate to direct air existing over the injection device to the ventilation part. | 02-25-2016 |
| 20160040398 | CONSTRUCTION MACHINE CONTROL SYSTEM AND METHOD OF CONTROLLING CONSTRUCTION MACHINE - A control method includes: detecting an attitude of a work machine including a boom, an arm, and a bucket; operating an operating device to drive a movable member including the arm and the bucket; detecting an amount of operation of the operating device; generating position data of a cutting edge of the bucket based on the detected attitude; acquiring a target shape of an excavation object to be excavated by the work machine and calculating a distance between the cutting edge and the target shape based on the position data and the target shape; setting a limited amount of operation limiting a speed of the movable member based on the detected amount of operation; and outputting a signal to a valve that adjusts an amount of operating oil supplied to a hydraulic cylinder driving the work machine so that the movable member is driven with the limited amount of operation. | 02-11-2016 |
| 20160040394 | WORK VEHICLE AND CONTROL METHOD FOR SAME - When a clutch is in the disengaged state, the predicted engagement time determining unit determines a predicted engagement time. The predicted engagement time is the predicted value for the time required from the beginning of the clutch engagement until engagement is complete. The speed ratio parameter estimating unit determines an estimated value for a speed ratio parameter after the elapse of the predicted engagement time from the current point in time. When the estimated value for the speed ratio parameter reaches a mode-switching threshold value, a clutch control unit outputs a clutch command signal for causing the clutch to engage. | 02-11-2016 |
| 20160040391 | WORK VEHICLE AND METHOD OF CONTROLLING WORK VEHICLE - A work vehicle includes: a body; a boom which is supported by the body and is turned; a bucket which is supported by a side of the boom opposite to a side of the body and is turned; a boom driving part which turns the boom; a bucket driving part which turns the bucket; a lifting force detector which detects lifting force as force that the boom driving part receives from the boom; and a control device which starts a tilt operation of the bucket when a predetermined condition is established, and ends the tilt operation on the basis of an amount of increase of the lifting force from a time when the tilt operation is started. | 02-11-2016 |
| 20160032563 | WORK VEHICLE AND CONTROL METHOD FOR SAME - A control unit has a connection determining unit and a motor switch control unit. The connection determining unit determines whether assistance from a third motor is required or not. The third motor is set to a connected state when the connection determining unit determines that assistance from the third motor is required. The motor switch control unit controls the motor switching mechanism so that the third motor is set to a disconnected state when the connection determining unit determines that assistance from the third motor is not required. | 02-04-2016 |
| 20160031448 | WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE - A work vehicle includes: a first control system that controls a traveling of a work vehicle; a second control system that controls the traveling of the work vehicle via the first control system by using set information; a first communication line used for communication between the first control system and the second control system; and a second communication line that transmits information to the first control system from the second control system, wherein the second control system generates information for controlling an engine of the work vehicle and information for controlling a brake device of the work vehicle, and transmits the information for controlling the engine and the information for controlling the brake device to the first control system via the second communication line by an information transmission system different from an information transmission system by the first communication line. | 02-04-2016 |
| 20160024754 | WORK VEHICLE AND CONTROL METHOD FOR SAME - A work vehicle includes a control unit having a motor switch control unit and a motor command determining unit. The motor switch control unit controls a motor switching mechanism so that a third motor connects to a first motor when a first rotation speed is less than a second rotation speed. The first rotation speed is the rotation speed of the first motor corresponding to that of a rotating shaft of the third motor. The second rotation speed is the rotation speed of the second motor corresponding to that of a rotating shaft of the third motor. When the third motor is connected to the first motor, the motor command determining unit determines a command torque for the first motor and the third motor so that the command torque for the third motor is no more than the command torque for the first motor. | 01-28-2016 |
| 20160016512 | WORKING VEHICLE PERIMETER MONITORING SYSTEM AND WORKING VEHICLE - A working vehicle perimeter monitoring system includes: a plurality of object detecting devices which are attached to a working vehicle and detect an object existing in a periphery of the working vehicle; and a controller which enables or disables of a generation of an alarm notifying an existence of the object based on a detection value of the object detecting device and a predetermined threshold value and sets the predetermined threshold value to be different inside and outside a predetermined region set in the periphery of the working vehicle based on an operation range of the working vehicle. | 01-21-2016 |
| 20160003359 | OIL SEAL - An oil seal, which is provided on an outer circumference of a crankshaft to prevent leakage of two fluids such as a lubricating oil and an engine oil, includes: a first seal that seals a flywheel side; a second seal that seals an engine side; a pressure release hole provided to at least one of the first seal and the second seal so that a space surrounded by the first seal, the second seal and the crankshaft is in communication with one of the flywheel side and the engine side through the pressure release hole; and a partitioning lip provided between the first seal and the second seal to divide the space. | 01-07-2016 |
| 20150377112 | REDUCING AGENT TANK AND WORK VEHICLE - A reducing agent tank is provided which enables detachment of a top cover and a heat exchanger while maintaining a long path length of a heat exchanger in a reducing agent tank. A first pipeline and a second pipeline respectively have extension portions which extend from lower ends of a suspended portion along a bottom face toward a side face of a container main body, and rising portions which extend from leading ends of the extension portions along the side face toward an upper face of the container main body. A length of the extension portions along the bottom face is larger than a maximum inside length of an opening. The rising portions and a turning portion form a leading end bent portion, and a rising length of the leading end bent portion is smaller than a minimum inside length passing through a center of the opening. | 12-31-2015 |
| 20150376867 | WORK VEHICLE - A work vehicle is provided with an engine, and engine compartment, a cooling chamber, a radiator, a cooling fan, a dividing wall, and a cover. The cooling fan is arranged inside the cooling chamber and discharges air toward a direction that is isolated from the engine compartment. The dividing wall separates the engine compartment and the cooling chamber. The dividing wall includes a passage opening that links the engine compartment and the cooling chamber. The cover includes a main cover section, and a connecting section. The main cover section is arranged inside the cooling chamber next to the dividing wall with a gap therebetween. The main cover section is arranged to face the passage opening. The connecting section includes an open region. The connecting section connects the main cover section and the dividing wall. | 12-31-2015 |
| 20150369103 | ENGINE UNIT AND WORK VEHICLE - Two sets of assemblies are arranged such that a diesel particulate filter device of the assembly, a selective catalytic reduction device of the assembly, a selective catalytic reduction device of the assembly, and a diesel particulate filter device of the assembly are located next to each other in this order. Exhaust tubes are provided to extend upward from gas outlets of the selective catalytic reduction device of the assembly and the selective catalytic reduction device of the assembly. The two exhaust tubes are located on a virtual plane orthogonal to longitudinal directions of the selective catalytic reduction devices of the assemblies. Thereby, an air intake position for an engine can be easily set to a position from which exhaust gas from the engine is less likely to be taken in, in a configuration provided with two sets of assemblies. | 12-24-2015 |
| 20150345991 | STROKE DETECTION DEVICE, STROKE DETECTION METHOD, STROKE DETECTION SYSTEM, OPERATION LEVER UNIT, AND OPERATION LEVER STROKE DETECTION SYSTEM - A stroke detection device includes: four rods provided, moveably along respective axial directions, side by side on a same circumference of a device body, the stroke detection device detecting a change in relative positions of the four rods at a time the rods perform a stroke with respect to the device body; a magnet disposed to each of the rods such that a magnetic field is generated between rods adjacent to each other on the circumference and that the magnetic field varies at a time the rods adjacent to each other on the circumference perform a stroke relatively; and magnetic field detection units disposed on at least three positions between the magnets adjacent to each other in the device body, each of the magnetic field detection unit detecting the magnetic field between the magnets and outputting an electric signal in accordance with the detected magnetic field. | 12-03-2015 |
| 20150345114 | DISPLAY SYSTEM OF EXCAVATING MACHINE, EXCAVATING MACHINE, AND DISPLAY COMPUTER PROGRAM OF EXCAVATING MACHINE - A display system of excavating machine includes a vehicle state detection unit configured to detect information related to a current position and a posture of the excavator as an excavating machine; a storage unit configured to store at least position information of a target surface indicating a target shape of an object to be worked; a bucket tilt detection unit configured to detect a tilt angle of the bucket; and a processing unit configured to obtain an angle between the edge and the target surface from a position of the edge of the bucket obtained based on the tilt angle of the bucket and the information related to a current position and a posture of the excavator and to display posture information indicating information related to a posture of the bucket on a screen of a display unit based on the obtained edge tilt angle. | 12-03-2015 |
| 20150345112 | WORK VEHICLE AND WORK VEHICLE CONTROL METHOD - A hydraulic excavator is provided with an arm cylinder, an arm switching valve, a sixth pilot pressure control valve, a sixth electromagnetic proportional valve, a sixth upstream pilot flow path, a sixth hydraulic pressure sensor, and a control section. The control section selects at least one item of current value information from a plurality of items of current value information on the basis of a hydraulic pressure that is detected by the sixth hydraulic pressure sensor. The control section is configured to set a current value of a current that is output to the sixth electromagnetic proportional valve on the basis of the current value information that is selected. | 12-03-2015 |
| 20150329242 | FIXING STRUCTURE OF RESIN TANK - A fixing structure of a resin tank for stably keeping the resin tank being fixed includes: a first holder having a predetermined length and being disposed corresponding to a pressed portion of a resin tank; a biasing member that is disposed in the first holder; a pressing member that is supported by the first holder and projects toward the pressed portion by a biasing force of the biasing member; and a pair of rods respectively having first ends attached to both ends of the first holder in a longitudinal direction and second ends attached to a frame. | 11-19-2015 |
| 20150326829 | SURROUNDINGS MONITORING SYSTEM, WORK VEHICLE, AND SURROUNDINGS MONITORING METHOD - A surroundings monitoring system includes: a detection device that is disposed in a work vehicle and configured to be able to detect an object around the work vehicle; an acquisition unit that acquires a command signal indicating an operation checking mode for inspecting the detection device; a determining unit that determines a quality of an operating state of the detection device based on a detection result of the detection device after the command signal is acquired; and a display device that displays identification information of the detection device of which the operating state is determined to be not good by the determining unit. | 11-12-2015 |
| 20150322645 | WORK VEHICLE AND CONTROL METHOD FOR SAME - The work implement requirement determination unit determines a work implement required horsepower on the basis of an operation amount of a work implement operating member and a hydraulic pressure of a hydraulic pump. A transmission requirement determination unit determines a transmission required horsepower on the basis of a vehicle speed and the operation amount of the accelerator operating member. An engine requirement determination unit determines an engine required horsepower on the basis of the work implement required horsepower and the transmission required horsepower. The required throttle determination unit determines a required throttle value based on an engine requirement. | 11-12-2015 |
| 20150315766 | HYBRID WORK MACHINE - A hybrid work machine includes: an engine; a generator motor; a storage battery; a motor; a transformer; a target engine speed calculation unit configured to calculate a target engine speed based on at least an engine load and an output state of the generator motor; a generation control unit configured to output a generator requesting minimum engine speed; an engine controlling target engine speed calculation unit configured to calculate and output an engine controlling target engine speed based on the target engine speed and the generator requesting minimum engine speed; an engine control unit configured to control an engine speed based on the engine controlling target engine speed; and an assist control unit configured to set the target engine speed to the generator controlling target engine speed and control engine assist based on the generator controlling target engine speed and the generator motor speed. | 11-05-2015 |
| 20150308826 | Measurement Jig - A measurement jig is attached to a target member in a form of a blade edge and is used for measuring a position of the target point in combination with a total station. The measurement jig includes a prism mirror that reflects a projected light from the total station, and an attachment member for attaching the prism mirror to the blade edge, in which a mirror center of the prism mirror is aligned with the target point. | 10-29-2015 |
| 20150308077 | MOTOR GRADER - A motor grader includes a fuel tank, a vehicle body frame, a left-side mount part, a right-side mount part, a rear-side mount part and a reducing agent tank. The left-side mount part and the right-side mount part are respectively disposed on a left lateral frame and a right lateral frame while being disposed on both sides of the fuel tank in a vehicle width direction, and fix the fuel tank to the vehicle body frame. The rear-side mount part is disposed on the left lateral frame in the vehicle width direction while being disposed rearward of the fuel tank, and fixes the fuel tank to the vehicle body frame. The reducing agent tank is disposed rearward of and adjacently to the fuel tank while being disposed on the right lateral frame side, and accumulates a reducing agent for processing an exhaust gas from an engine. | 10-29-2015 |
| 20150301518 | CONTROL METHOD, CONTROL COMPUTER PROGRAM, AND CONTROL SYSTEM FOR WORK MACHINE - A control method for a work machine, includes: acquiring a correlation between identification information for identifying operability for the work machine and operational information of the work machine, and generating a correlation between an operator who operates the work machine and the operational information by using the correlation between the identification information and the operational information and a correlation between the operator and the identification information. | 10-22-2015 |
| 20150300232 | ERROR RELEASING DEVICE FOR WORK VEHICLE AND ERROR RELEASING METHOD FOR WORK VEHICLE - An error releasing device for a work vehicle to release an error related to an exhaust gas treatment system when the error related to the exhaust gas treatment system has occurred includes: an input unit configured to input at least temporary input information; an authentication unit including a processing algorithm common with a processing algorithm of an external device that generates the temporary input information, and configured to authenticate the input temporary input information by using the processing algorithm; and an error release processing unit configured to release the error related to the exhaust gas treatment system when the temporary input information acquired from the external device by using inquiry information obtained through a predetermined operating procedure is input and further the temporary input information is authenticated by the authentication unit. | 10-22-2015 |
| 20150299989 | WORKING MACHINE AND METHOD OF MEASURING WORK AMOUNT OF WORKING MACHINE - A working maching includes: an operation state detection unit configured to detect a physical amount output according to an operation of an operation lever; a time integration unit configured to calculate a time integration value by performing time integration of the physical amount; a determination unit configured to cause the time integration value and a predetermined operating angle of an excavating and loading mechanism associated with the operation of the operation lever to correspond to each other, and to determine that the operation of the operation lever has been performed, at a time the time integration value becomes a predetermined integration value or more; and a counting unit configured to count number of times of a series of excavating and loading work. | 10-22-2015 |
| 20150299985 | HYBRID WORK MACHINE - A hybrid work machine includes: an engine; a generator motor connected to an output shaft of the engine; a storage battery configured to store power generated by the generator motor and supply power to the generator motor; a motor configured to be driven by at least one of power generated by the generator motor and power stored in the storage battery; a transformer disposed between the storage battery and both the generator motor and the motor; and a control unit configured to stop the transformer at a time of satisfying a plurality of conditions including a condition that the engine is in an idling state and a condition that a motor driving command to drive the motor is not output. | 10-22-2015 |
| 20150299981 | WHEEL LOADER - A wheel loader includes a cab, steps provided beside the cab, an engine disposed to the rear of the cab, a vehicle body cover covering the engine, and an air cleaner. The air cleaner has a filter exchangeable by being pulled out horizontally. The air cleaner is connected to the engine via an intake pipe. The air cleaner is disposed to an outside of the vehicle body cover and to the rear of the cab, and is disposed in a slanted manner so that a side from which the filter is pulled out is further away from the cab than an opposite side. | 10-22-2015 |
| 20150298952 | BATTERY POWERED FORKLIFT - A forklift including a fork on a front of a body to which front and rear wheels are attached, a counter weight on a rear of the body, and a driving electric motor allowing the body to travel, the forklift includes: a battery on the body above the rear wheel; a cargo-handling electric motor generating oil pressure on operating oil operating the fork; a controller controlling the cargo-handling electric motor and the driving electric motor; and a storage space in the body, below a bottom of the battery, and above a bottom of the body, wherein the controller and a charging device charging the battery are arranged in the storage space on both sides in a widthwise direction of the body, respectively and an operating oil tank and the cargo-handling electric motor are arranged along a longitudinal direction of the body between the controller and the charging device. | 10-22-2015 |
| 20150298748 | CAB AND WORK VEHICLE - A cab body has a panel section. The panel section includes a concave section which that is recessed upward. A floor frame includes a convex section and supports the cab body. The convex section has a shape that protrudes facing upward and is arranged to protrude from the concave section. A seal member seals a gap between the concave section and the convex section. The seal member has a first contact surface, a second contact surface, and an inclined surface. The first contact surface contacts the convex section. The second contact surface contacts the panel section. The inclined surface is inclined with regard to the first contact surface and the second contact surface. A bracket has an attachment section and a pressing surface. The attachment section is attached to the panel section. The pressing surface presses the inclined surface. | 10-22-2015 |
| 20150298502 | POWER TRANSMISSION DEVICE - A power transmission device includes: a spindle case that includes a central hole through which an axle shaft penetrates in a central portion and forms a brake chamber in a region around the axle shaft at a base end portion; a wheel hub that is rotatably supported by an outer circumference of the spindle case and includes a final chamber, between the final chamber and the brake chamber, oil can flow, by communicating with the brake chamber through the central hole of the spindle case; a wet type brake mechanism that is contained in the brake chamber and operates so as to apply braking on rotation of the axle shaft with respect to the spindle case; and a deceleration mechanism that is contained in the final chamber and decelerates the rotation of the axle shaft to transmit the rotation to the wheel hub. | 10-22-2015 |
| 20150293702 | WORK MACHINE - A work machine includes a controller having a first storage unit that can store work machine information and rewrite the stored work machine information, and a processing unit that collects the work machine information, and stores at least one kind of the work machine information in the first storage unit when trigger information for causing the first storage unit to start storing the work machine information occurs. The controller can change from an outside at least one of the number of data prior to a trigger of the work machine information collected by the processing unit before the trigger information, the number of data subsequent to the trigger of the work machine information collected by the processing unit after the trigger information, and a time interval during which the work machine information is collected. | 10-15-2015 |
| 20150275476 | BULLDOZER - A bulldozer includes a blade, an engine, a first exhaust treatment device, a second exhaust treatment device, a relay connection pipe, and an engine cover. The first exhaust treatment device is disposed in front of the engine and lower than the upper surface of thereof. The second exhaust treatment device is disposed above the first exhaust treatment device. The relay connection pipe is disposed above the first exhaust treatment device and below the second exhaust treatment device. The longitudinal directions of the first and second exhaust treatment devices extend along the vehicle lateral direction. As seen from the top of the vehicle, the second exhaust treatment device overlaps at least a part of the first exhaust treatment device. As seen from the side of the vehicle, the front edge of the first exhaust treatment device is positioned forward of the front edge of the second exhaust treatment device. | 10-01-2015 |
| 20150275475 | WORK VEHICLE - A wheel loader is provided with a top plate, a plate-like member, a diesel particulate filtering device, and a first duct. The top plate has a first outdoor air intake port. The plate-like member is disposed below the first outdoor air intake port. The diesel particulate filtering device is disposed below the plate-like member. A first end part of the first duct is positioned to the rear of the diesel particulate filtering device. A second end part of the first duct is positioned inside the cooling compartment. A connector is disposed in an air flow generated between a gap and the first end part. | 10-01-2015 |
| 20150267382 | STROKE OPERATION DIAGNOSIS SUPPORTING DEVICE FOR HYDRAULIC CYLINDER - A stroke operation diagnosis supporting device for a hydraulic cylinder includes: movable portions; hydraulic cylinders; a stroke sensor measuring a stroke length of the hydraulic cylinder; a reset sensor measuring a reset reference point at which a measurement value of the stroke length obtained by the stroke sensor is reset; a stroke end detection process unit detecting a stroke end position of the hydraulic cylinder; a calibration process unit calibrating the measurement value of the stroke length upon the detection of the reset reference point and/or the stroke end position; and a monitor displaying on a screen at least the measurement value of the stroke length obtained by the stroke sensor and a calibration state obtained by the calibration process unit, wherein the monitor displays continuous time change of the measurement value of the stroke length obtained by the stroke sensor. | 09-24-2015 |
| 20150253776 | MANAGEMENT SYSTEM AND MANAGEMENT METHOD OF MINING MACHINE - A management system of a mining machine includes: a landmark that is placed at a mine and allows a non-contact sensor placed on the mining machine able to run at the mine to detect a relative position of the landmark and the mining machine; a storage device that registers a position of the landmark detected using the Global Positioning System; and a processing device that sets, upon the registration, a prohibited area where an entry of the mining machine is prohibited such that the position of the landmark is included in the prohibited area. | 09-10-2015 |
| 20150252707 | EXHAUST GAS PROCESSING DEVICE, DIESEL ENGINE, AND EXHAUST GAS PROCESSING METHOD - An exhaust gas purifying device includes a first branch pipe and a second branch pipe that cause exhaust gas exhausted from a diesel engine to branch into a plurality of passages and pass through the passages, a first exhaust gas purification unit and a second exhaust gas purification unit that purify the exhaust gas, an exhaust gas temperature sensor that detects a temperature of the exhaust gas, an atmospheric pressure sensor, and a processing unit that obtains a convergence portion pressure at a convergence portion from a relationship obtained in advance between the convergence portion pressure, a total flow rate of the exhaust gas, a convergence portion temperature, and an atmospheric pressure. | 09-10-2015 |
| 20150252553 | WORK VEHICLE - A box section of a cab is detachable in a motor grader. The motor grader is provided with a bracket and a first controller. The bracket is attachable to a floor section. The first controller is attachable in a selective manner to the box section and the bracket and controls equipment required for travel. | 09-10-2015 |
| 20150247514 | CYLINDER DEVICE - A cylinder device includes a cylinder head, a piston rod, a stroke detection unit that is provided in a housing chamber so as to open to a center hole of the cylinder head and outputs a detection signal corresponding to a stroke of the piston rod relative to the cylinder head, two bearing members that are installed along a longitudinal direction of the piston rod so as to sandwich the housing chamber in the center hole of the cylinder head, and a sealing system that is configured in a portion corresponding to a distal end side of the piston rod compared with the bearing members in the center hole of the cylinder head, and the piston rod is supported by the cylinder head via the two bearing members. | 09-03-2015 |
| 20150240458 | WORK MACHINE AND WORK MANAGEMENT SYSTEM - A work machine includes: a work state detection unit detecting a physical amount; a time integration unit calculating a time integration value; a determination unit associating the time integration value with a predetermined operating angle of an excavation-loading mechanism and determining that an operation of an operation lever is performed at a time the time integration value is not smaller than a predetermined integration value; a counting unit performing accumulation adding with number of times of loading as once at a time each operation is an excavation-loading work performed in an order of: an excavation operation; a forward swing operation; a soil discharge operation; and a backward swing operation; a default setting unit setting a bucket capacity; a workload calculation unit calculating a workload by multiplying the number of times of loading by the bucket capacity; and an output unit outputting the workload. | 08-27-2015 |
| 20150240446 | HYDRAULIC EXCAVATOR - There is provided a hydraulic excavator in which invasion of a design surface by a work implement can be suppressed. A boom-lowering proportional solenoid valve is provided in a boom-lowering pilot conduit connected to a boom-lowering pilot port. A first pressure sensor detects a pressure generated in the boom-lowering pilot conduit between a control lever and the boom-lowering proportional solenoid valve. A controller controls an opening degree of the boom-lowering proportional solenoid valve based on the pressure detected by the first pressure sensor. The controller gently increases, from zero, a current value outputted to the boom-lowering proportional solenoid valve. | 08-27-2015 |
| 20150233278 | WORK VEHICLE DISPLAY DEVICE AND WORK VEHICLE - A work vehicle display device included in a work vehicle including an internal-combustion engine that generates power and an exhaust gas processing device that processes exhaust gas discharged from the internal-combustion engine using urea water, the work vehicle display device includes: a display unit configured to display an image; and a display control unit configured to display either a first image or a second image different from the first image in the display unit, wherein the display control unit displays device information having a same content related to a state of the exhaust gas processing device in the first image and the second image. | 08-20-2015 |
| 20150232312 | FORKLIFT AND CONTROL METHOD OF FORKLIFT - Provided is a forklift equipped with a variable displacement traveling hydraulic pump driven by an engine, a hydraulic motor that forms a closed circuit with the traveling hydraulic pump therebetween and is driven by hydraulic oil discharged from the traveling hydraulic pump, and driving wheels driven by the hydraulic motor. An accelerator opening is calculated by correcting an accelerator opening detected by an accelerator opening sensor, using a greater one of a first cut-off frequency calculated from the accelerator opening detected by the accelerator opening sensor, and a second cut-off frequency calculated from a corrected accelerator opening calculated at a timing before the first cut-off frequency is calculated. | 08-20-2015 |
| 20150229095 | LASER DEVICE - A laser device includes an optical fiber laser unit including an amplification optical fiber, a plurality of pumping light sources outputting pumping lights for optically pumping the amplification optical fiber, and a controller controlling the pumping light sources. When an instruction value for supplying a predetermined driving electric current to each of the pumping light sources is input to the controller, the controller conducts a control of supplying a compensated electric current value as a driving electric current obtained by multiplying an initial electric current value corresponding to the instruction value by a compensation coefficient and supplying the compensated electric current value to each of the pumping light sources. The compensation coefficient is set to restrain a decrease in a power with time of a laser light output from the optical fiber laser unit. | 08-13-2015 |
| 20150224886 | INVERTER - An inverter includes: a step-up transformer; an upper cover for covering the step-up transformer; a terminal attached to the upper cover and electrically connected to the step-up transformer; a terminal case attached to the upper cover to cover the terminal and attachable with a connector to be plugged into and unplugged from the terminal; a first positioning unit provided to the upper cover and the terminal to position the upper cover and the terminal relative to each other; and a second positioning unit provided to the upper cover and the terminal case to position the upper cover and the terminal case relative to each other. | 08-13-2015 |
| 20150224447 | EXHAUST GAS PROCESSING DEVICE, DIESEL ENGINE, AND EXHAUST GAS PROCESSING METHOD - An exhaust gas processing device includes a NOx detection sensor, a first catalyst provided to a first branch pipe, a second catalyst provided to a second branch pipe, a first pressure sensor and a second pressure sensor which are arranged on the upstream side of the first catalyst and the second catalyst and which detect pressures in the first branch pipe and the second branch pipe, and a control device that obtains flow rates of exhaust gas flowing through the first branch pipe and the second branch pipe based on detection values of the first pressure sensor and the second pressure sensor and obtains amounts of reducing agent to be given to the first catalyst and the second catalyst from the obtained flow rates and a concentration of NOx of the exhaust gas. | 08-13-2015 |
| 20150222858 | WORKING VEHICLE PERIPHERY MONITORING SYSTEM AND WORKING VEHICLE - A working vehicle periphery monitoring system includes: a plurality of image capturing devices capturing a periphery of a working vehicle to output image information; a bird's eye image synthesizing unit synthesizing the image information to generate bird's eye image information for displaying a bird's eye image on a monitor; and a display control unit displaying, on the monitor, at least one of a first bird's eye image obtained by superimposing a first vessel image including at least the vessel other than a part of the vessel at a rear side of the working vehicle and front and rear wheels displayed with the vessel on an area of the working vehicle in the bird's eye image and a second bird's eye image obtained by superimposing a second vessel image including at least all of the vessel and the front and rear wheels displayed with the vessel on the area of the working vehicle in the bird's eye image. | 08-06-2015 |
| 20150219029 | DIESEL ENGINE AND METHOD FOR CONTROLLING DIESEL ENGINE - A diesel engine, includes: an exhaust gas recirculation device that recirculates an exhaust gas emitted from the diesel engine to an intake side of the diesel engine; an intake air amount sensor that measures an intake air amount of the diesel engine; a NOx measurement sensor that measures NOx contained in the exhaust gas emitted from the diesel engine; and a control device that obtains a correction value for correcting a measured value by the intake air amount sensor based on a difference between first information on NOx obtained based on information on a rotation speed of the diesel engine and information on a load and second information on NOx measured by the NOx measurement sensor to control the exhaust gas recirculation device based on the measured value by the intake air amount sensor corrected using the correction value. | 08-06-2015 |
| 20150218781 | DISPLAY SYSTEM OF EXCAVATING MACHINE AND EXCAVATING MACHINE - A display system of an excavating machine that includes a work machine having a bucket, and a main body to which the work machine is attached, the display system includes: a storage unit configured to store at least position information of a design surface; a display unit configured to display the position information of the design surface on a screen; and a processing unit configured to display an outer edge of a second plane of the design surface, the second plane including a first plane existing in the design surface, the second plane existing in a part of a periphery of the first plane, on the screen of the display unit, in a different form from inside and outside of the outer edge. | 08-06-2015 |
| 20150217805 | CRAWLER WORK VEHICLE - A crawler work vehicle includes an engine, left and right travel devices, a power transmission device, left and right steering clutches, left and right steering brakes, a rotation speed detecting device, a brake hydraulic pressure obtaining device, and a brake protecting device. The rotation speed detecting device detects an output rotation speed of the steering brakes. The brake hydraulic pressure obtaining device obtains a brake hydraulic pressure supplied to the steering brakes. The brake protecting device refers to the output rotation speed and the brake hydraulic pressure to compute a heat rate of the steering brakes, and executes a protection process of the steering brakes by reducing the engine output upon determining the heat rate that was computed is equal to or greater than a preset first threshold. | 08-06-2015 |
| 20150217691 | WORK VEHICLE PERIPHERY MONITORING SYSTEM AND WORK VEHICLE - A work vehicle periphery monitoring system includes a plurality of imaging apparatuses which are attached to the work vehicle and image the periphery of a work vehicle to output image information, a display control unit which displays an image based on image information which is output from imaging apparatuses, and a pattern indicating information relating to the work vehicle periphery monitoring system on a monitor, and a pattern display control unit which changes a display position at which the pattern is displayed on the monitor | 08-06-2015 |
| 20150217690 | WORKING VEHICLE PERIPHERY MONITORING SYSTEM AND WORKING VEHICLE - A working vehicle periphery monitoring system includes: image capturing devices attached to a working vehicle with a vessel and capturing the periphery of the working vehicle to output image information; a bird's eye image synthesizing unit synthesizing the image information to generate a bird's eye image information for displaying bird's eye images of the working vehicle and the periphery thereof; and a display control unit displaying at least one of a first bird's eye image obtained by superimposing a first vessel image including the vessel other than a part of the vessel at a rear side of the working vehicle on an area of the working vehicle in the bird's eye image and a second bird's eye image obtained by superimposing a second vessel image including all of the vessel on the area. | 08-06-2015 |
| 20150216060 | Monitor and Working Vehicle Provided with the Monitor - A monitor includes a display in a form of a liquid crystal display, a monitor substrate that is electrically connected to the liquid crystal display, a connector that is used for electrical connection between the monitor substrate and an outside, and a resin-made exterior case that houses the liquid crystal display and the monitor substrate. On a back face opposed to the monitor substrate of the exterior case, a connector attachment portion is provided in a manner to be dented toward the connector. In the connector attachment portion, an opening from which the connector is exposed is provided. At least a part of an inner circumferential surface of the connector attachment portion is provided by an inclined surface portion that is enlarged toward the back face from an elevational portion (opening). | 07-30-2015 |
| 20150211209 | ENGINE UNIT - An engine unit mounted to a vehicle frame, the engine unit includes: an engine; an engine support mechanism to be coupled to the vehicle frame, with at least one vibration absorbing mechanism disposed on each of both sides of the engine in an orthogonal direction to a crankshaft of the engine, to support the engine; an aftertreatment device to purify exhaust gas emitted from the engine; a base bracket provided to the engine support mechanism; and an upper bracket detachably fixed and mounted to the base bracket, the upper bracket supporting the aftertreatment device. | 07-30-2015 |
| 20150210180 | INDUSTRIAL VEHICLE, SYSTEM FOR MANAGING STATE OF AMOUNT OF ELECTROLYTE OF INDUSTRIAL VEHICLE, AND ELECTRIC FORKLIFT - An industrial vehicle includes a battery that includes a battery cells including a battery liquid and connected in series, an battery liquid shortage detection unit detecting a shortage of the battery liquid by detecting a voltage value between the battery cells, an battery liquid-shortage time calculation unit calculating a battery liquid-shortage time, which is a cumulative time of the shortage of the electrolyte detected by the battery liquid shortage detection unit, a memory storing the battery liquid-shortage time calculated by the battery liquid-shortage time calculation unit, and a communication controller attaching time information to the battery liquid-shortage time stored in the memory and outputting the battery liquid-shortage time with the time information to a management server, at a predetermined timing. | 07-30-2015 |
| 20150204053 | Wheel Loader and Wheel Loader Engine Control Method - A wheel loader includes detectors and a controller. The detectors include at least an accelerator pedal angle detector that detects an accelerator displacement. The controller includes: a state judging unit that judges from a detection result provided by the detectors whether or not the wheel loader is in an excavation operation; and a torque-curve selector. The torque-curve selector selects one excavation torque curve when the wheel loader is judged to be in the excavation operation by the state judging unit, and selects one of two or more non-excavation torque curves depending on the accelerator displacement when the wheel loader is judged not to be in the excavation operation. | 07-23-2015 |
| 20150204050 | WHEEL LOADER - A wheel loader includes an engine, a selective catalyst reduction device, a cab, a ladder, a reducing agent tank, and an injection device. The selective catalyst reduction device is configured to treat exhaust gas from the engine. The cab is provided with a driver seat therein. The ladder is configured for ascending to and descending from the cab and provided on a lateral side of the cab. The reducing agent tank is disposed behind the ladder and adapted to store a reducing agent. The injection device is configured to inject the reducing agent from the reducing agent tank into exhaust gas fed from the engine toward the selective catalyst reduction device. | 07-23-2015 |
| 20150198074 | WORK VEHICLE - A work vehicle includes an engine, an injector injecting a reducing agent to an exhaust gas exhausted from the engine, a determination portion determining whether or not a temperature of the injector is high, a stop determination portion determining whether or not the engine has stopped while the injector is in a high-temperature state as a result of determination by the determination portion, a counter counting the number of times of stop of the engine while the injector is in the high-temperature state based on a result of determination by the stop determination portion, and a warning portion giving a warning in connection with stop of the engine when a count value of the counter exceeds a first prescribed value. | 07-16-2015 |
| 20150197161 | INDUSTRIAL VEHICLE, SYSTEM FOR MANAGING OPERATION OF INDUSTRIAL VEHICLE, AND ELECTRIC FORKLIFT - An industrial vehicle includes: a key-on signal detection unit that detects whether or not a key switch is in a key-on state; an under-charging signal detection unit that detects whether or not a storage battery is being charged; an operating time calculation unit that calculates a time, which is in the key-on state and in which charging is not performed, as an operating time; and an output unit that outputs the operating time. | 07-16-2015 |
| 20150183370 | WORK VEHICLE PERIPHERY MONITORING SYSTEM AND WORK VEHICLE - A controller includes: a bird's eye image synthesizer generating bird's eye image information for displaying a bird's eye image of a work vehicle and a periphery of the work vehicle; a display controller displaying a first image in which a mark representing an object detected by radar devices overlaps the bird's eye image and a second image captured on the same screen of a monitor; an alarm notifying unit notifying, as the alarm, at least one of a first alarm of displaying a region with the mark differently from a region without the mark in the first image and a second alarm of notifying the existence of the object by a sound; and an alarm releasing unit releasing the alarm in accordance with a releasing order based on a position in which the object exists. | 07-02-2015 |
| 20150176451 | COOLING STRUCTURE FOR UREA AQUEOUS SOLUTION CONDUIT - In a working vehicle, an exhaust gas aftertreatment device is provided in an engine compartment that is adjacent to a cooling fan through which cooling air is supplied to a heat exchanger. The exhaust gas aftertreatment device includes a selective catalytic reduction device in which ammonia obtained from a urea aqueous solution is used as a reduction-causing agent. A urea aqueous solution pipe through which the urea aqueous solution is supplied is laid to the selective catalytic reduction device through the engine compartment. In the engine compartment, a pipeline-forming member having pipelines in which the urea aqueous solution pipe is installed. The cooling air sucked by a cooling fan flows into the pipelines. | 06-25-2015 |
| 20150176248 | FOOTRESTS AND FLOOR MATS FOR CONSTRUCTION MACHINERY - A wheel loader includes: a floor for a driving operation; an operator's seat for an operator to be seated; and a trainer's seat for a trainer to be seated, the operator's seat and the trainer's seat being provided in parallel to each other. A footrest of the wheel loader includes an operator's footrest and a trainer's footrest respectively having placement surfaces on which adjacent feet of the seated operator and trainer are respectively placed. The operator's footrest and the trainer's footrest are integrated with each other. | 06-25-2015 |
| 20150163101 | WORK MACHINE, MANAGEMENT SYSTEM AND MANAGEMENT METHOD - A work machine includes: an electronic device; a signal line to which the electronic device is connected; a memory unit which stores at least identification information for identifying the electronic device; a communication unit which wirelessly communicates to an outside of the work machine; and a processing unit, wherein when the identification information acquired from the electronic device via the signal line is different from the identification information stored in the memory unit, the processing unit stores the identification information acquired from the electronic device in the memory unit and transmits the acquired identification information to the outside of the work machine via the communication unit. | 06-11-2015 |
| 20150159348 | HYDRAULIC EXCAVATOR - There is provided a hydraulic excavator in which occurrence of minute vibrations in a control lever can be suppressed. The hydraulic excavator includes: a first pilot pressure control valve outputting a pilot pressure in accordance with operation of the control lever; an upstream pilot conduit having one end connected to the first pilot pressure control valve; a proportional solenoid valve connected to the other end of the upstream pilot conduit; a downstream pilot conduit having one end connected to the proportional solenoid valve; and a pilot switching valve for a boom having a second pilot port connected to the other end of the downstream pilot conduit, and controlling operation of the boom. A volume of the upstream pilot conduit is larger than a volume of the downstream pilot conduit. | 06-11-2015 |
| 20150138338 | WORKING VEHICLE PERIPHERY MONITORING SYSTEM AND WORKING VEHICLE - A working vehicle periphery monitoring system includes: a synthesis process unit that acquires image information output from a plurality of image capturing devices at a predetermined timing and synthesizes the acquired image information to generate synthesis image information; an updating information adding unit that adds updating information to the synthesis image information generated by the synthesis process unit; a synthesis image storage unit that stores the synthesis image information to which the updating information is added; and an updated state determining unit that acquires the synthesis image information to which the updating information IR is added from the synthesis image storage unit and detects that the synthesis image information is updated based on the updating information. | 05-21-2015 |
| 20150135693 | ENGINE CONTROL APPARATUS FOR WORK MACHINE AND ENGINE CONTROL METHOD THEREOF - The present invention includes an information generator to set a lever manipulation amount total sum decrease flag during a period when a lever manipulation amount total sum is decreasing, a first processor to process an engine actual output, an engine actual output latching function block to output the maximum value of the engine actual output until the present during a period in which a lever manipulation amount total sum decrease flag is not set, and output the present engine actual output during a period in which the flag is set, a second processor to output an engine target output based on the engine output, and a controller to control the engine speed under limitation of the engine target output. | 05-21-2015 |
| 20150134184 | MANAGEMENT SYSTEM AND MANAGEMENT METHOD - A management system includes a position detection device, installed in a haul machine that travels at a mine, capable of detecting position information of the haul machine, and a processing device to which the position information of the haul machine detected by the position detection device is to be output, wherein the processing device specifies, based on the position information of the haul machine output from the position detection device, at least one of a start time and an end time of each of a plurality of operations of the haul machine. | 05-14-2015 |
| 20150103287 | DISPLAY FOR CONSTRUCTION MACHINE AND CONSTRUCTION MACHINE - A display for a construction machine includes: a metal case that is detachably supported on a construction machine frame via a universal joint (a joint member); a liquid crystal display (a display unit) that is attached to the metal case; and a control board that is attached to the metal case and is configured to perform a display control on the liquid crystal display. | 04-16-2015 |
| 20150090467 | BULLDOZER - Assemblies are arranged in such a manner that the diesel particulate filter device of one of the assemblies, the selective catalytic reduction device of the one assembly, the selective catalytic reduction device of the other assembly, and the diesel particulate filter device of the other assembly are located next to each other in this order as seen in a plan view. An exhaust pipe is located within a region made up of a region where the selective catalytic reduction device in the one assembly is arranged, a region where the selective catalytic reduction device in the other assembly is arranged, and a region between the selective catalytic reduction device in the one assembly and the selective catalytic reduction device in the other assembly, and located on an end side in the longitudinal direction, as seen in a plan view. | 04-02-2015 |
| 20150086314 | WORK VEHICLE - A working vehicle includes a vehicle, an engine, an exhaust treatment apparatus, a connecting pipe, a reducing agent injection apparatus, a reducing agent pump and a guiding pipe guiding reducing agent from the pump to the injection apparatus. The engine, exhaust treatment apparatus, connecting pipe, and reducing agent injection apparatus are arranged inside an engine room of the vehicle body. The engine has a crank shaft, and intake and exhaust manifolds arranged on first and second direction sides of the crank shaft, respectively. A first accommodating space is positioned on a first direction side of the engine room. A reducing agent pump is arranged inside the first accommodating space. A guiding pipe is arranged so as to pass inside the engine room on the first direction side with regard to the crank shaft. | 03-26-2015 |
| 20150084458 | ELECTRIC MOTOR - An electric motor includes: a ring-shaped stator attached to an inside of a tubular body part; a rotor rotatably arranged inside in a radial direction of the stator; and a tabular member attached to one end of the body part and including a power supply cable through-hole through which a power supply cable pierces, the power supply cable being pulled out from a coil included by the stator, wherein the stator and the tabular member are rotatable around a rotation center axis of the rotor, and a position of the power supply cable pulled out from the coil and a position of the power supply cable through-hole can be changed in a circumferential direction of the body part. | 03-26-2015 |
| 20150081165 | Construction Machine and Method for Reporting Quality of Driving Operations of Construction Machine - A construction machine provided with an exhaust gas purifying device for an internal combustion engine includes an energy-wasting operation judging unit that judges whether or not an operation of the construction machine is an energy-wasting operation, a judgment result notifier that notifies a judgment result of the energy-wasting operation judging unit to an outside, a regeneration treatment judging unit that judges whether or not a regeneration treatment of the exhaust gas purifying device is to be conducted, and a notification restricting unit that restricts the judgment result notifier from notifying the judgment result of the energy-wasting operation judging unit when the regeneration treatment judging unit judges that the regeneration treatment of the exhaust gas purifying device is to be conducted. | 03-19-2015 |
| 20150081147 | HYBRID WORKING MACHINE AND METHOD OF CONTROLLING HYBRID WORKING MACHINE - A hybrid excavator includes an engine, a generator motor, a capacitor, a swing motor, a transformer, a transformer temperature sensor, a capacitor temperature sensor, and a hybrid controller. An overheat suppression control unit of the hybrid controller changes the amount of power regenerated by the swing motor supplied to the capacitor and the amount of power regenerated by the swing motor supplied to the generator motor based on a temperature of the transformer detected by the transformer temperature sensor and a temperature of the capacitor detected by the capacitor temperature sensor. | 03-19-2015 |
| 20150077281 | DUMP TRUCK - A dump truck includes a vehicle body portion that includes an upper deck on which a cab is disposed and a frame which is disposed in a longitudinal direction, a vessel that is disposed above the frame, and a sixth imaging device that is disposed below the vessel at a rear end of the frame and can image the rear side of the vehicle body portion. The sixth imaging device is a wide dynamic range camera. | 03-19-2015 |
| 20150075893 | EXHAUST TREATMENT UNIT, MANUFACTURING METHOD OF EXHAUST TREATMENT UNIT, AND WORK VEHICLE - An exhaust treatment unit is used to treat an exhaust gas from an engine of the work vehicle. The exhaust treatment unit includes a first exhaust treatment device, a second exhaust treatment device and a first bracket. The first exhaust treatment device and the second exhaust treatment device are attached to the first bracket. The first bracket includes a brim part and a main body part. The main body part has a convex shape downwardly bulged from the brim part. The main body part includes a first support portion and a second support portion. The first support portion directly supports the first exhaust treatment device. The second support portion directly supports the second exhaust treatment device. | 03-19-2015 |
| 20150069815 | TUNNEL EXCAVATION METHOD - This tunnel excavation method includes a step of excavating three first tunnels that are substantially parallel to each other in a first excavation step. Second tunnels are excavated that intersect the first tunnels in a second excavation step. A boring machine is used that performs excavation in a state in which a gripper pushes against the side wall of the tunnel. | 03-12-2015 |
| 20150068470 | VENTILATION STRUCTURE FOR ENGINE COMPARTMENT - A ventilation structure of an engine compartment that houses an engine and is adjacent to a cooling fan that supplies cooling air to a heat exchanger in a form of a radiator is provided. A ventilation structure of the engine compartment includes: an exterior cover with which the engine and the cooling fan are covered; and a ventilation duct that includes an inner surface of the exterior cover, in which a first end of the ventilation duct is open in the engine compartment while a second end of the ventilation duct intercommunicates with a surrounding area of the cooling fan. | 03-12-2015 |
| 20150066352 | MINING MACHINE MANAGEMENT SYSTEM AND MINING MACHINE MANAGEMENT METHOD - A mining machine management system includes: a position information detection unit which is mounted in a mining machine loading a load in a mine and transporting the load and detects position information related to a position of the mining machine; and a region specification unit which corrects a representative position of a discharging station at which the load is removed, based on position information of a position at which the load is removed from the mining machine within a predetermined range centered around the representative position, from among the position information detected by the position information detection unit. | 03-05-2015 |
| 20150066312 | HYDRAULIC EXCAVATOR AND METHOD FOR MEASURING STROKE OF HYDRAULIC CYLINDER OF HYDRAULIC EXCAVATOR - A hydraulic excavator includes a base body portion, a movable portion, a hydraulic cylinder, a position sensor, a rotary encoder, and a control unit. The rotary encoder includes a light emitting unit, a light receiving unit, and a disk unit having a plurality of transmission portions. The control unit measures the stroke length of the hydraulic cylinder by correcting deviation of the stroke length, which is measured by the position sensor, based on the pulse signal output from the rotary encoder. In this way, there can be obtained a hydraulic excavator capable of precisely measuring a stroke length of a hydraulic cylinder driving a work implement, as well as a method for measuring the stroke of the hydraulic cylinder of the hydraulic excavator. | 03-05-2015 |
| 20150053489 | BATTERY POWERED WORK MACHINE, AND BATTERY POWERED FORKLIFT - A heat sink includes a first part on which a control device is attached, a second part on which an electronic component is attached and that is arranged to be opposite to the first part, and plural air passages provided between the first part and the second part for allowing air to pass. Plural plate-like members are arranged between the first part and the second part, and the air passage is formed by a space enclosed by the first part, the adjacent partition member, and the second part. | 02-26-2015 |
| 20150050530 | BATTERY FOR WORK VEHICLE AND BATTERY-TYPE WORK VEHICLE - A battery includes: battery cell groups, each of which is obtained by connecting battery cells in series to each other; a battery casing storing the battery cells; a bus-bar connecting positive electrodes of the respective battery cell groups; a bus-bar connecting negative electrodes of the respective battery cell groups; and a first line connecting the positive electrode and the bus-bar, a second line connecting the negative electrode and the bus-bar, and a third line connecting the battery cells included in each of the battery cell groups. The first line and the second line are drawn to the outside of the battery casing and connected to the bus-bar, and the corresponding first and second lines are bent at the outside of the battery casing according to a position of the battery cell group in the battery casing and are connected to the bus-bar. | 02-19-2015 |
| 20150047427 | HYDRAULIC CYLINDER STROKE OPERATION DIAGNOSIS ASSISTING DEVICE AND HYDRAULIC CYLINDER STROKE OPERATION DIAGNOSIS ASSISTING METHOD - A hydraulic cylinder stroke operation diagnosis assisting device includes: movable portions that are sequentially supported by a vehicle body in a rotatable manner; a hydraulic cylinder between the vehicle body and each movable portion or between the movable portions to support the movable portions in a rotatable manner; a stroke sensor in the hydraulic cylinder to measure a stroke length of the hydraulic cylinder; a reset sensor measuring a reference reset point in which a value of the stroke length measured by the stroke sensor is reset; a stroke end detection unit detecting a stroke end position of the hydraulic cylinder; a calibration unit calibrating the measured value of the stroke length when the reference reset point and/or the stroke end position are detected; and a monitor displaying at least the measured value of the stroke length and a calibration state by the calibration unit. | 02-19-2015 |
| 20150046004 | Hybrid Work Machine and Control Method of Providing Information for the Same - A hybrid hydraulic excavator includes: an engine; a generator motor; an electric storage device; a commanding system being configured to command at least activation of a service mode for maintenance and execution of a charge-release process for the electric storage device; a display being configured to provide at least information on the charge-release process for the electric storage device; and a display controller being configured to control displaying of the display. The display controller commands the display to display charge-release-failure information when the charge-release process is ongoing at the elapse of a predetermined duration of time since the activation of the service mode was commanded. | 02-12-2015 |
| 20150019086 | BLADE CONTROL DEVICE, WORKING MACHINE AND BLADE CONTROL METHOD - When a blade load is reduced from a value greater than or equal to a first set load value to a value less than the first set load value, a blade control device is configured to set a virtual designed surface to be closer to a blade than a designed surface is, and is configured to allow the blade to pivot above the virtual designed surface. | 01-15-2015 |
| 20150008729 | ROLLER DEVICE FOR TRACK-TYPE WORK VEHICLE - A roller device includes a shaft, a bushing, a roller shell, a retainer, and a seal. The roller shell is fitted over the outer circumference of the bushing. The retainer is fixed detachably to an end of the bushing, and fitted in an end of the roller shell on a radially outer side. The seal is disposed on the outer circumference of the shaft so as to seal a gap between the shaft and the bushing. The seal includes a first seal member attached to the bushing and a second seal member attached to the shaft. The first seal member is rotatable relative to the second seal member. The second seal member has an outer circumferential end disposed on an inner side with respect to an inner circumferential end of the retainer. | 01-08-2015 |
| 20140374186 | WORK VEHICLE - An engine ( | 12-25-2014 |
| 20140369373 | TWO-STAGE LASER SYSTEM FOR ALIGNERS - The invention relates to a two-stage laser system well fit for semiconductor aligners, which is reduced in terms of spatial coherence while taking advantage of the high stability, high output efficiency and fine line width of the MOPO mode. The two-stage laser system for aligners comprises an oscillation-stage laser ( | 12-18-2014 |
| 20140358382 | OPERATION CONTROL SYSTEM FOR MINING MACHINE AND OPERATION CONTROL METHOD FOR MINING MACHINE - An operation control system for a mining machine includes, based on travel path information including at least information on moisture content of a travel path on which a mining machine operating at a mine runs, and position information being information on a position of a travel path corresponding to the travel path information, generating speed limit information for changing a speed limit for the mining machine to run on the travel path corresponding to the travel path information. | 12-04-2014 |
| 20140354010 | CAB FRAME FOR CONSTRUCTION MACHINERY AND PAINTING METHOD THEREFOR - A cab frame includes: a main structure having an opening on a part of an outer surface thereof; a rear structure separably connected to the main structure to cover the opening while projecting from the main structure; and first and second connectors provided to the main structure and the rear structure, respectively, the first and second connectors connected to each other in an abutted manner when the main structure and the rear structure are connected to each other. When the rear structure is connected to the main structure after being turned back to front relative to the main structure, the rear structure is temporarily fixable to the main structure via the first and second connectors. When the rear structure is turned back to front and connected to the main structure, the rear structure is housed in the main structure. | 12-04-2014 |
| 20140349516 | INTERLOCK MECHANISM OF MOTOR, AND MOTOR - An interlock mechanism of a motor, includes a terminal box configured to store a terminal used to connect a power supply cable to the motor; a lid configured to close the terminal box; a fixing member configured to fix the lid to the terminal box; a first connector attached to the lid; a second connector capable of being coupled with the first connector and configured to cover the fixing member in a state that the second connector is coupled with the first connector. | 11-27-2014 |
| 20140345935 | Ground Structure of Controller Mounted in Construction Machine - A ground structure of a controller that is mounted in a construction machine such as a dump truck and has a case having an upper surface on which a connector receiver hole for a receptacle connector to be received is provided includes: a cable harness that is provided by a plurality of cables including a ground cable and is connected to the receptacle connector; and a connecting portion for the ground cable to be connected, the connecting portion being provided near the connector receiver hole on the upper surface. | 11-27-2014 |
| 20140345265 | HYDRAULIC DRIVE SYSTEM - An operating state determining unit determines whether a hydraulic cylinder is in operation or not in operation. A discharge pressure reducing unit reduces the discharge pressure of a charge pump. A discharge pressure control unit controls the discharge pressure reducing unit when the hydraulic cylinder in not in operation to reduce the discharge pressure of the charge pump to a low pressure lower than a normal pressure. The normal pressure is the discharge pressure of the charge pump when the hydraulic cylinder is in operation. An accumulator is connected to a charge flowpath. A one-way valve is disposed between the accumulator and the charge pump. The one-way valve allows the flow of hydraulic fluid from the charge pump to the accumulator and prohibits the flow of hydraulic fluid from the accumulator to the charge pump. | 11-27-2014 |
| 20140338317 | PIPELAYER - A pipelayer includes a pilot pressure control unit. The pilot pressure control unit supplies hydraulic fluid to a pilot port of a warm-up control valve so that the warm-up control valve enters an open state when a winch control valve is in the closed state. The pilot pressure control unit drains hydraulic fluid from the pilot port of the warm-up control valve so that the warm-up control valve enters the closed state when the winch control valve is in the open state. The stroke amount from the stroke end of the closed side of the spool of the warm-up control valve when the meter-out opening of the warm-up control valve is fully closed is larger than the stroke amount from the stroke end of the closed side of the spool of the winch control valve when the meter-in opening of the winch control valve is fully closed. | 11-20-2014 |
| 20140327507 | Transformer and Method for Manufacturing Case of the Transformer - A transformer ( | 11-06-2014 |
| 20140307244 | METHOD FOR ADJUSTING SPECTRUM WIDTH OF NARROW-BAND LASER - An upper limit and a lower limit are preliminarily set for a spectral line width common to a plurality of narrow-band laser devices. When delivered or subjected to maintenance, the narrow-band laser device is caused to laser oscillate to detect its spectral line width before it is used as a light source for semiconductor exposure. A spectral line width adjustment unit provided in the narrow-band laser device is adjusted so that the spectral line width assumes a value between the upper limit and the lower limit. The present invention is able to suppress the variation in spectral line width such as E95 bandwidth caused by machine differences during the manufacture of the laser device, or by replacement or maintenance of the laser device, whereby the quality of integrated circuit patterns formed by the semiconductor exposure tool can be stabilized. | 10-16-2014 |
| 20140306517 | CRAWLER BELT COUPLING APPARATUS - In a crawler belt coupling apparatus, a first crawler belt link has a first through hole, and a first cutout in an inner circumferential surface of a first through hole. A master pin is inserted in the first through hole of the first crawler belt link, and has a second cutout in an outer circumferential surface thereof. A first recess is constructed of the first cutout and the second cutout, and has an opening at an end portion of the first through hole. A first knock pin is disposed such that one end surface thereof faces the opening. A first snap ring has a C-like shape, and is disposed to be separated from the one end surface of the first knock pin with a space therebetween or disposed in abutment with the one end surface. | 10-16-2014 |
| 20140300059 | FLOATING SEAL - A floating seal material comprises C, Si, Mn, Ni, Cr, and B with the remainder being made up of Fe and unavoidable impurities. The contents of the C, Si, Mn, Ni, Cr, and B are: C: 2.2 to 3.8 wt %, Si: 0.5 to 3.5 wt %, Mn: 0.1 to 2.0 wt %, Ni: 2.0 to 5.5 wt %, Cr: 0.9 to 4.0 wt %, and B: 0.02% to 0.4 wt %. The content of Cr in the parent phase is 0.30 to 1.07 wt %. The content of graphite is 0.35 to 2.33% of the surface area. The content of carbon boride is 14 to 40% of the surface area. | 10-09-2014 |
| 20140297091 | MINING MACHINE MOVEMENT MANAGEMENT SYSTEM - An information collection device transmits a position information request command for requesting transmission of position information of a dump truck at a predetermined point in time via a second wireless communication device and determines a state of at least one of the dump truck, a relay that relays communication from a first wireless communication device included in the dump truck to the second wireless communication device, and a travel route of the dump truck based on a response to the position information request command. | 10-02-2014 |
| 20140292068 | CRAWLER BELT LINK AND CRAWLER BELT APPARATUS - A crawler belt link includes a center portion, one end portion located on one end side of the center portion, and the other end portion located on the other end side of the center portion. In a second surface, the center portion has a first portion of a rail surface, the one end portion has a second portion of the rail surface, and the other end portion has a third portion of the rail surface. A first outer circumferential portion reaching the second portion of the rail surface is located closer to a second side portion with respect to a bushing hole surrounding portion. Accordingly, a crawler belt link and a crawler belt apparatus can be implemented, by which wear of the rail surface above a bushing hole can be suppressed while maintaining the width of the crawler belt link to be relatively small. | 10-02-2014 |
| 20140292033 | BULLZOZER - A bulldozer includes a cab and an engine hood. The cab has a foremost surface, and left and right front surfaces. The engine hood has an upper surface, left and right side surfaces, and flat first, second and third inclined surfaces. The first and second inclined surfaces contact the rear side of the upper surface and rear sides of the left and right side surfaces, and are inclined more obliquely to the right rear and left rear than the left and right side surfaces, respectively. The first, second and third inclined surfaces are inclined to face downward to the rear. The third inclined surface contacts the first and second inclined surfaces, and the upper surface. A window attached to the foremost surface is arranged in a vertical direction above first and second sides closest to the foremost surface out of sides constituting the first and second inclined surfaces, respectively. | 10-02-2014 |
| 20140292032 | OPERATOR PROTECTIVE GUARD, GUARD-EQUIPPED CAB FOR WORK MACHINE, AND WORK MACHINE - An operator protective guard which can ensure strength and is easily manufactured and assembled is provided. A front guard includes a plurality of first plate members and second plate members each made of one plate. The first plate members and the second plate members are assembled in a grid pattern such that a first longitudinal direction of each of the first plate members intersects with a second longitudinal direction of each of the second plate members. The plurality of the first plate members are arranged radially as seen in the longitudinal direction. The plurality of the second plate members are arranged radially as seen in the longitudinal direction. A slit is formed in the first plate member, and the second plate member is fitted in the slit and fixed by welding. | 10-02-2014 |
| 20140291059 | WORK VEHICLE AND WHEEL LOADER - A work vehicle includes an engine, an exhaust gas post-processing device, an engine room and a partitioning member. The exhaust gas post-processing device includes a diesel particulate filtering device, a selective catalyst reduction device, a connecting pipe connecting the diesel particulate filtering and the selective catalyst reduction device, and an injection device configured to inject a reducing agent into the connecting pipe. The engine room accommodates the engine and the exhaust gas post-processing device. The partitioning member includes a first partition part disposed between the injection device and the diesel particulate filtering device, and a second partition part disposed between the injection device and the selective catalyst reduction device. | 10-02-2014 |
| 20140291058 | BULLDOZER - A bulldozer includes an engine, first and second exhaust treatment apparatuses arranged above the engine, a relay connection pipe connecting the first and second apparatuses, and an engine hood covering upper parts of the first and second apparatuses. The relay connection pipe has a cylindrical shaped main section, a first section connecting the main section and the first apparatus, and a second section connecting the main section and the second apparatus. The lower end of the main section is positioned above upper ends of the first and second apparatuses. The upper surface of the hood has a convex section protruding above the relay connection pipe and a base section formed integrally with the convex section below the convex section. At least a portion of a line segment extending along the upper edge of the main section overlaps an upper surface part of the convex section in a bulldozer top view. | 10-02-2014 |
| 20140290802 | SURFACE TREATMENT METHOD AND COATING METHOD FOR STEEL MATERIAL, AND METHOD FOR PRODUCING MACHINE COMPONENT - This surface treatment method comprises a rustproofing step, a rinsing step, and a cleaning step. In the rustproofing step, a rustproofing liquid containing orthophosphoric acid and an organic acid is used to perform a rustproofing treatment on the surface of a steel material. In the rinsing step, a treatment liquid containing an oxo acid salt of a transition metal is used to perform a rinsing treatment on the surface of the steel material. In the cleaning step, the surface of the steel material that has undergone the rinsing step is subjected to a cleaning treatment. | 10-02-2014 |
| 20140290781 | EXHAUST GAS TREATMENT UNIT - An exhaust gas treatment unit includes an exhaust gas treatment device, a bracket and a connecting pipe. The exhaust gas treatment device is mounted on a bracket. The connecting pipe is connected to the exhaust gas treatment device. The connecting pipe directs exhaust gas to the exhaust gas treatment device. The connecting pipe may include a supporting portion and a pipe portion, with the supporting portion supporting the bracket and the pipe portion being integrated with the supporting portion. Alternatively, the exhaust gas treatment unit may further include a supporting member having a supporting portion supporting the bracket and a pipe portion integrated with the supporting portion, with the pipe portion connected to the connecting pipe. | 10-02-2014 |
| 20140290220 | ENGINE UNIT - An engine unit includes an engine, an exhaust gas treatment device and a connecting pipe. The engine has an exhaust gas port. The exhaust gas treatment device is arranged above the engine. The connecting pipe connects the exhaust gas port and the exhaust gas treatment device. The connecting pipe has an expandable-contractible bellows portion. The bellows portion has a linear form following the upward-downward direction. The lower end portion of the bellows portion is positioned lower than at least a part of the exhaust gas port. | 10-02-2014 |
| 20140283510 | HYDRAULIC DRIVE SYSTEM - A shuttle valve connects a second flowpath and a drain flowpath when the hydraulic pressure in a first flowpath is greater than the hydraulic pressure in the second flowpath. The shuttle valve connects the first flowpath and the drain flowpath when the hydraulic pressure in a second flowpath is greater than the hydraulic pressure in the first flowpath. The ratio between the pressure receiving area of a first pressure section and the pressure receiving area of a second pressure section is the same as the ratio between the pressure receiving area of a first chamber side and the pressure receiving area of a second chamber side of a cylinder rod. | 09-25-2014 |
| 20140266859 | DUMP TRUCK WITH OBSTACLE DETECTION MECHANISM AND METHOD FOR DETECTING OBSTACLE - A dump truck with an obstacle detection mechanism capable of detecting an obstacle around a vehicle using a plurality of radars provided on peripheral of the vehicle, the dump truck includes radars arranged with respect to a vehicle center plane in a backside of a rear axle case and between joints of rear suspension cylinders on the rear axle case, wherein the radars are arranged such that irradiation center axes in a vertical direction have a predetermined angle of dip to detect an obstacle in a backside of the vehicle. | 09-18-2014 |
| 20140262589 | WORK VEHICLE - A partition wall is arranged between an engine and a radiator in an engine room. A first exhaust processing unit has a first exhaust processing apparatus and a first mount section. The first exhaust processing apparatus is arranged between the engine and the partition wall. A second exhaust processing unit has a second exhaust processing apparatus and a second mount section. The second exhaust processing apparatus is arranged above the first exhaust processing apparatus. The second exhaust processing apparatus is arranged so as to overlap with at least a portion of the first exhaust processing apparatus in a planar view. The partition wall has a first wall member and a second wall member arranged above the first wall member. The distance between the boundary between the first and second wall members and the second exhaust processing unit is larger than the outer diameter of the first exhaust processing apparatus. | 09-18-2014 |
| 20140262570 | HYDRAULIC EXCAVATOR - A hydraulic excavator is provided, facilitating access to the lower side inside an engine compartment, allowing a maintenance job to be performed in a reasonable posture. The hydraulic excavator includes a revolving frame, an engine arranged on the revolving frame, and a counterweight arranged on the revolving frame, at the back side of the engine. A recess indented from the bottom face in the upward direction is formed at the counterweight. An opening is formed at the revolving frame for allowing a person to access from the lower side of the revolving frame to the space between the engine and the counterweight. The recess has a section overlapping with the opening, when viewed from the top. | 09-18-2014 |
| 20140257646 | BULLDOZER AND BLADE CONTROL METHOD - A bulldozer includes a blade pivotably attached to a vehicle body, a blade operation lever, and a blade control section. The blade operation lever outputs a lowering instruction signal, a holding instruction signal, and a raising instruction signal for the blade. The blade control section controls a height of the blade according the signal input. The blade control section can lower the blade to a predetermined position when the lowering instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from an advancing state, to the advancing state. The blade control section can raise the blade to a predetermined position when the raising instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from a reversing state, to the reversing state. | 09-11-2014 |
| 20140257645 | INFORMATION DISPLAY DEVICE OF CONSTRUCTION MACHINE, INFORMATION DISPLAY METHOD OF CONSTRUCTION MACHINE, AND INFORMATION DISPLAY COMPUTER PROGRAM OF CONSTRUCTION MACHINE - An information display device includes a display device that is mounted in a construction machine and displays various types of information of the construction machine, and a control device that deletes a display of a guide mark guiding a function of a display change-over switch for changing information displayed on the display device in a screen on which at least information of a fuel amount and information of an engine water temperature are displayed when the construction machine is in the operation state. | 09-11-2014 |
| 20140244098 | MANAGEMENT SYSTEM OF MINING MACHINE AND MANAGEMENT METHOD OF MINING MACHINE - In a management system of the mining machine, a management device collects operation information about the dump truck via a management-side wireless communication device. Routes along which the dump truck travels are identified based on position information, included in the operation information about the dump truck, about at least four locations included in a route along which the dump truck moves to a location where the dump truck unloads a load, to a location where the dump truck loads a load, and to a location where the dump truck unloads the load again. | 08-28-2014 |
| 20140240638 | Monitor and Working Vehicle Provided with the Monitor - A monitor includes a display in a form of a liquid crystal display, a rubber frame having a surrounding face that surrounds an outer circumferential surface of the liquid crystal display, and a front case having a housing that houses the liquid crystal display attached with the rubber frame. The rubber frame includes a projection that projects from a surface of the surrounding face and that is elastically deformed by contacting with an inner circumferential surface of the housing. | 08-28-2014 |
| 20140239650 | CAB FOR CONSTRUCTION MACHINE AND CONSTRUCTION MACHINE - A handle is supported by a hollow tube so as to be movable in the direction in which the handle is pushed toward a hollow space. A hole leading to the hollow space of the hollow tube has a first hole portion located at one end of a base portion extending in a longitudinal direction L of the hollow tube and a second hole portion extending from the first hole portion to a portion corresponding to the other end of the base portion in the longitudinal direction L. A dimension W2b of a grip portion of the handle in a width direction W is greater than a dimension W2a of the base portion of the handle in the width direction W and greater than a dimension W1a of the second hole portion in the width direction W. | 08-28-2014 |
| 20140238923 | WORK VEHICLE - A work vehicle includes a work implement and an operating fluid tank. The operating fluid tank has a tank body and a strainer. The tank body is for collecting operating fluid for driving the work implement. The strainer is installed inside the tank body and includes a cylindrical filter and a cover member. The cylindrical filter is disposed with an axis extending in a vertical direction. The cover member includes an upper plate part and a cylindrical part. The upper plate part of the cover member covers an upper surface of the filter. The cylindrical part of the cover member extends downward from an outer edge part of the upper plate part and covers an upper side surface part of the filter with a gap between the side surface of the filter and the cylindrical part, while allowing a lower side surface part of the filter to be exposed. | 08-28-2014 |
| 20140238780 | BATTERY TYPE FORKLIFT - A battery type forklift which is driven with power of a battery mounted on a vehicle body, includes: a fork arranged at a front part of the vehicle body; and a counter weight arranged at a rear part of the vehicle body, wherein the battery is mounted on the vehicle body in a state of being capable of being removed to a rear side of the vehicle body, and the counter weight comprises a guide unit which prevents sway of the battery in a right-left direction of the vehicle body when removing the battery and which guides movement of the battery along a front-rear direction of the vehicle body. | 08-28-2014 |
| 20140238767 | WHEEL LOADER - A wheel loader comprises an engine, an exhaust gas post-processing device, an engine room, a top plate, a cooling room, a partition wall, and a drainage mechanism. The exhaust gas post-processing device is disposed above the engine in the engine room and includes a diesel particulate filtering device and a selective catalyst reduction catalyst device. The top plate has a sloping part with a height that decreases toward the rear, and a first ventilation part that includes a plurality of through-holes formed in the sloping part. The top plate defines an upper plane of the engine room. The cooling room accommodates a cooling unit and is disposed to the rear of the engine room, separated by the partition wall. The drainage mechanism is disposed below the first ventilation part, and configured to drain water entering the engine room from the first ventilation part to the outside of the engine room. | 08-28-2014 |
| 20140232130 | CONTROLLER ASSEMBLY, CAB FOR WORK MACHINE, AND WORK MACHINE - A controller assembly includes a base plate, a bracket, and a first controller main body. The base plate includes a through hole and a frame having an upper surface and a lower surface and surrounding the through hole. The bracket has first and second flange portions supported on the upper surface of the frame at positions opposite to each other over the through hole, first and second side portions coupled respectively to the first and second flange portions and passing through the though hole; and a bottom portion coupled to both of the first and second side portions on the side of the lower surface of the frame. The first controller main body is mounted on a bottom portion of the bracket. Accordingly, a controller assembly which can be readily assembled, a cab of a work implement, and a work machine can be obtained. | 08-21-2014 |
| 20140231153 | LOADING SYSTEM AND TRANSPORTER - A loading system that includes a transporter and a loader or a transporter is provided. It includes a load-amount measuring unit installed on the transporter that measures a load amount of an object loaded on the transporter; a difference computing unit computing a difference between the load amount measured by the load-amount measuring unit when the object is loaded, and a load amount measured by the load-amount measuring unit after a measurement when the object is loaded and at a time of traveling; a storage unit storing a difference value data indicating the difference computed by the difference computing unit; a correcting unit correcting the load amount measured by the load-amount measuring unit when the object is loaded, based on a correction rule calculated based on the difference value data stored in the storage unit; and a display unit displaying a corrected load amount obtained by correcting the load amount. | 08-21-2014 |
| 20140230936 | OPERATION LEVER LOCK APPARATUS - An operation lever lock apparatus includes: operation levers; hydraulic control valves arranged at a portion lower than a floor panel; and link members, each of the link members extending downward from a base part of a corresponding one of the operation levers to be connected to a corresponding one of the hydraulic control valves, wherein the hydraulic control valves are operated by causing the link members to move vertically, the apparatus further including: an engagement member provided under the link member; and a stopper member having an engagement part to be engaged in the engagement member, wherein the stopper member is movable between an engaged position at which the engagement part engages in the engagement member and a released position at which the engagement part is released from the engagement member, and arranged to restrict movement of the link member in a vertical direction when positioned in the engaged position. | 08-21-2014 |
| 20140230785 | ENGINE CONTROL APPARATUS AND CONSTRUCTION MACHINE - An engine control apparatus for controlling an engine which drives a hydraulic pump to discharge operation oil, the engine control apparatus includes: a pump driving power limit unit configured to limit pump driving power, which is power used to drive the hydraulic pump, based on pressure of the operation oil discharged by the hydraulic pump when in a state in which a part of the operation oil discharged by the hydraulic pump is released because pressure of the operation oil discharged by the hydraulic pump has become equal to or higher than preset relief pressure; and an engine output control unit configured to control output of the engine so that target speed, which is speed of the engine set as a target, becomes equal to or higher than a value of a point of time when limiting of the pump driving power is started. | 08-21-2014 |
| 20140219761 | WHEEL LOADER - A transmission for a wheel loader includes a first oil accumulating part accumulating scattered lubricating oil and a second oil accumulating part accumulating the lubricating oil from the first oil accumulating part. The first oil accumulating part communicates with the second oil accumulating part through a communication oil path. Lubricating oil accumulated in the second oil accumulating part is directed to a lubricated part through a lubrication oil path when a rotary shaft is rotated at a rotational speed less than a predetermined rotational speed. The second oil accumulating part includes a shaft end space disposed at an end of the rotary shaft that accumulates the lubricating oil from the first oil accumulating part. A horizontal hole formed in a center part of the rotary shaft and extending axially allows the shaft end space and the vertical hole to communicate with each other. | 08-07-2014 |
| 20140217700 | WHEEL LOADER - A frame locking bar is supported pivotably with respect to a rear body. The frame locking bar is constructed to be able to lock an articulated structure by fixing a front body and the rear body to each other to thereby prevent swing thereof. A fixing mechanism is constructed to be able to position this frame locking bar at a prescribed pivoted position in a cantilevered state. At the positioned prescribed pivoted position, when viewed from above, a foot mount is located outside a side surface of a driver's compartment. Thus, a wheel loader capable of locking an articulated mechanism and allowing easy and highly safe services at a high position is obtained. | 08-07-2014 |
