NSK LTD. Patent applications |
Patent application number | Title | Published |
20160140264 | OPTIMAL OPERATION PATTERN SELECTION METHOD FOR MOTOR, OPTIMAL OPERATION PATTERN SELECTION PROGRAM FOR MOTOR, AND MOTOR SELECTION DEVICE - In an optimal operation pattern selection method, a plurality of selectable motors is selected and an optimal operation pattern from among the motor operation pattern defined by positioning time to rotate a motor output shaft of the motor to rotate a load by a positioning angle and stop time to stop the motor output shaft is suggested. The optimal operation pattern selection method includes a comprehensive determination step of calculating a comprehensive determination result according to an adaptable item, and storing the comprehensive determination result linked to each of the motors; and a list display step of displaying a list of the motors to enable to receive selection of one of the motors, together with the comprehensive determination result stored in the comprehensive determination step. | 05-19-2016 |
20160139583 | MOTOR SELECTION DEVICE - A motor selection device includes a computer including a storage device and a calculation device. The storage device stores data of acceleration time, constant speed time, deceleration time, stop time, maximum output torque for each motor, dynamic friction torque, and constant load torque. To select selectable motors and to suggest an optimal operation pattern among motor operation patterns, the calculation device includes a central processing unit (CPU) and performs effective torque calculation by calculating torque in the acceleration time, in the constant speed time, in the deceleration time, and in the stop time based on data stored in the storing unit, and calculating the effective torque by giving a first torque, a second torque, a third torque, a fourth torque, the acceleration time, the constant speed time, the deceleration time, and the stop time to a predetermined formula. | 05-19-2016 |
20160135588 | TABLE DEVICE AND CONVEYANCE DEVICE - A table device including: a first base including a first reference surface; a second base including a second reference surface, and movable on the first reference surface in a direction parallel to a first axis; a first bearing member provided to the second base, and forming a gas bearing between the first bearing member and the first reference surface; a second bearing member provided to the second base, apart from the first bearing member relative to a direction parallel to a second axis perpendicular to the first axis, and forming a gas bearing between the second bearing member and the first reference surface; and a table movable on the second reference surface. A distance between the first bearing member and the second bearing member is longer than a dimension of a moving range of the table relative to the direction parallel to the second axis. | 05-19-2016 |
20160135587 | TABLE DEVICE AND CONVEYANCE DEVICE - A table device including a first member; a second member; a first guide device guiding the second member such that the second member is moved in a direction parallel to a first axis by movement of the first member; a table supported by the second member; a third member connected to at least a part of the table; a bearing member forming a gas bearing between the bearing member and the third member with a gas supplied between the bearing member and the third member, and movably supporting the third member in the direction parallel to the first axis; and a support device including a parallel pin that is arranged such that the parallel pin becomes parallel to the first axis, and connects the second member and the table, and supporting the table. The table is supported by the second member through the support device. | 05-19-2016 |
20160129929 | STEERING-BRACKET SUPPORTING APPARATUS AND STEERING APPARATUS - A supporting apparatus for a steering bracket includes a capsule support portion of a steering bracket supporting a steering column, a separation capsule to fix a vehicle body-side member to the steering bracket, a resin member, a shear pin, and an inertial action body including a weight portion moving to a front side of a vehicle by inertia due to a primary collision and pulling out the shear pin from a second bracket-side hole with the movement. | 05-12-2016 |
20160121919 | POSITION ADJUSTMENT DEVICE OF STEERING WHEEL - In a position adjustment device of a steering wheel, a step forming surface is provided in a portion close to one axial end of an adjustment rod. A nut is threadedly fixed to one end portion of the adjustment rod in the axial direction. An adjustment lever is connected to a driving cam of a cam mechanism. The driving cam is sandwiched between the step forming surface and the nut. | 05-05-2016 |
20160118855 | Motor, Positioning Device, Conveyance Device - Provided are a motor having a small number of parts and provided with waterproof performance in a low-cost method, and a positioning device and a conveyance device that are positioned and driven by the motor. The motor includes a columnar motor body that is formed with a center hole penetrating in an axial direction, and a housing for accommodating the motor body. The housing includes a cylindrical part that covers an outer peripheral surface of the motor body; a rotation output part provided on an upper side of the cylindrical part in the axial direction and fixed to rotary bodies of the motor body; and a fixed part provided on a lower side of the cylindrical part in the axial direction and fixed to fixed bodies of the motor body. The housing is sealed by a sealing mechanism at only one place of the cylindrical part in the axial direction. | 04-28-2016 |
20160108491 | ROLLING BEARING - A rolling bearing in which at least one of the bearing rings is obtained by applying a induction heat treatment to a spheroidizing annealed steel material having a DI value of 1.0 or more to form a hardened layer having a hardness of 550 HV or more on at least a raceway surface and a fitting surface. In the induction heat-treated bearing ring, (A) an average retained austenite amount is 12 vol % or less, (B) the raceway surface has a retained austenite amount of 12 vol % or more and a residual compressive stress of −100 MPa or less, and (C) a difference between a hardness of the raceway surface and a minimum hardness of a region having a hardness of less than 550 HV is 150 HV or more. | 04-21-2016 |
20160107680 | ELECTRIC POWER STEERING CONTROL UNIT - [Problem] An object of the present invention is to provide an electric power steering control unit that detects the vibration components of the vibration compressing object such as the handle and current command value based on an expression of Fourier series of which calculation capacity is small, changes a gain of the PI control section at only a time when the vibration of the predetermined frequency continues during the predetermined time or more and compresses the vibration, and improves the steering feeling. | 04-21-2016 |
20160101806 | STEERING DEVICE - A steering device includes a steering column, a bracket, and a fixing mechanism. The fixing mechanism includes a roller clutch, an inner ring, a slip ring and a rod which penetrates through side plate portions of the bracket. The roller clutch and the inner ring are not operated in a clamping direction in which the manipulation lever is rotated to provide a clamping force and are operated in a releasing direction in which the manipulation lever is rotated to release the clamping force. The slip ring is a friction providing member which applies frictional resistance to the rod in a case where the roller clutch and the inner ring are operated. | 04-14-2016 |
20160091023 | ROLLING BEARING UNIT WITH COMBINATION SEAL RING - A roller bearing unit with a combination seal ring. Between the outer peripheral edge of a rotation side circular ring part constituting a slinger and the inner peripheral surface of the stationary side cylindrical part of a metal insert constituting the seal ring, there is formed a labyrinth seal. Also, in such part of an elastic member constituting the slinger as intervenes between the labyrinth seal and seal lip serving as a side lip, there is formed an auxiliary seal lip having lower rigidity than the seal lip. The whole axial length of the auxiliary seal lip in its free state is set in the range of 5.5˜7.5 times the thickness dimension thereof and the ratio of interference is set in the range of 0˜20% of the whole axial length of the free-state thereof. | 03-31-2016 |
20160072421 | MULTI-PHASE MOTOR CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING THE SAME - A multi-phase motor control apparatus that reduces the occurrence of the vibrations and the noises by setting the shift amount per time more finely after realizing a reduction in processing ability of a CPU by using a one-shunt type current detection circuit and an electric power steering apparatus using the same. The apparatus includes a PWM-signal generating section that generates plural second each-phase PWM-signals within two control periods based on the current estimation value and the carrier signal, and in a case that a phase shift amount of a predetermined phase in a just before control period is zero and a phase shift amount of a predetermined phase in a present control period is not zero, the phase shift control section gradually increases the phase shift amount from zero in the present control period and a next control period, and uses the second each-phase PWM-signals in the next control period. | 03-10-2016 |
20160069798 | TARGET SUBSTANCE CAPTURING DEVICE AND TARGET SUBSTANCE DETECTING DEVICE - A target substance capturing device includes a supporting member to place and support a metal-film coated structure that captures a target substance, and including at least two holes opening at portions different from a portion where the metal-film coated structure is placed, a holding member that puts the metal-film coated structure in between the holding member and the supporting member, and including an opening portion that overlaps with the holes of the supporting member, and a portion that captures the target substance in the metal-film coated structure placed on the supporting member, and a covering member having transparency, and covering the opening portion of the holding member. | 03-10-2016 |
20160061823 | TARGET SUBSTANCE CAPTURING DEVICE - A target substance capturing device includes a reflection surface on which a plurality of non-flat portions is arrayed, the reflection surface capturing a target substance, and reflecting irradiated light. The plurality of non-flat portions are arranged in an array, the array includes a plurality of unit arrays in which the plurality of non-flat portions are arranged such that each one center of the non-flat portions superposes a position of a vertex in an M-time symmetrical figure, and the plurality of unit arrays is arranged such that each one center of gravity of the M-time symmetrical figure superposes a position of an intersection of an N-time symmetrical lattice pattern, where M is an integer of two or more, and N is an integer of two or more and different from M. | 03-03-2016 |
20160061261 | LUBRICANT SUPPLY DEVICE FOR LINEAR GUIDE APPARATUS, AND LINEAR GUIDE APPARATUS - A lubricant supply device for a linear guide apparatus is configured to include an end cap | 03-03-2016 |
20160059885 | ELECTRIC POWER STEERING APPARATUS | 03-03-2016 |
20160059883 | GUIDE BUSH AND RACK-AND-PINION STEERING GEAR UNIT - A guide bush includes a plurality of bush elements combined to form a cylindrical shape as a whole. The plurality of bush elements includes a cylindrical fitting portion. The cylindrical fitting portion is fitted in a fit-and-hold portion of a housing, and has an inner peripheral surface configured to guide an outer peripheral surface of a displacement shaft that has been inserted in the cylindrical fitting portion in an axially displaceable manner. The diameter of the circumscribed circle of the plurality of bush elements in a state in which the end faces of the plurality of bush elements with respect to a circumferential direction abut each other is not greater than the inside diameter of the fit-and-hold portion. | 03-03-2016 |
20160054198 | ROLLING-BEARING TESTING DEVICE - A radial rolling-bearing testing device includes a housing, a lubricant reservoir provided inside the housing and configured so as to retain lubricant in which a portion of a radial rolling bearing is immersed, a rotary shaft which is supported so as to freely rotate inside the housing and which an inner ring of the radial rolling bearing is fitted outside, a rotational driving section which is configured so as to rotate the rotary shaft, a load applying section which has a pressurizing device and is configured so as to apply a load to the radial rolling bearing, and a vibration sensor configured so as to detect a vibration in the radial rolling bearing. The vibration sensor is provided on an outside of the housing, and between the pressurizing device and the radial rolling bearing in a direction in which the load applies. | 02-25-2016 |
20160052541 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that protects Zener diodes without impairing steering performances by time-integrating a loss power of the Zener diodes for protecting FETs and gradually limiting a duty ratio with an increase in an integrating loss. The apparatus includes a loss power calculating section that calculates a loss power when a difference between an ignition voltage and an inverter applying voltage is equal to or more than a predetermined voltage; an integrating loss calculating section to calculate an integrating loss of the loss power; a permissible loss calculating section to calculate a permissible loss based on a temperature; a minimum value selecting section to select a minimum value of a loss difference of the permissible loss and the integrating loss; and a limit value calculating section to calculate a limit value of the PWM-signal based on the minimum value of the loss difference and the permissible loss. | 02-25-2016 |
20160052539 | RACK-AND-PINION STEERING GEAR UNIT - A rack-and-pinion steering gear unit includes a rack shaft and a cylindrical portion. The rack shaft is configured as a hollow pipe as a whole by bending an elongated metal plate such that widthwise end edges of the metal plate are butted to each other. A cylindrical portion is fitted on an end portion of the rack shaft. | 02-25-2016 |
20160046322 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus includes an input shaft, an output shaft, a torsion bar coaxially coupling the input and output shafts to each other, and a torque detection sleeve. One of the input and output shafts includes a cylindrical portion. On the inner peripheral surface of the cylindrical portion, a female stopper is provided. The other of the input and output shafts includes a male stopper to be engaged with the female stopper, and a torque detection concave-convex section adjacent to the male stopper in the axial direction. The male stopper includes a plurality of male grooves. The torque detection concave-convex section includes a plurality of detection grooves. The torque detection sleeve is arranged radially outside the torque detection concave-convex section. The diameter of a groove bottom circle of the male stopper is smaller than the diameter of a groove bottom circle of the torque detection concave-convex section. | 02-18-2016 |
20160046317 | TELESCOPIC STEERING DEVICE - In an upper end portion of a front end portion of an outer column, a cutout which is opened to a front end edge of the outer column is provided in a state of being overlapped on a front end portion of an outer shaft in a radial direction. Accordingly, during insertion work, a state of core dislocation can be visually confirmed through the cutout. | 02-18-2016 |
20160040716 | RESIN CAGE FOR TAPERED ROLLER BEARING AND TAPERED ROLLER BEARING INCLUDING THE RESIN CAGE - Provided is a resin cage for a tapered roller bearing in which a mold parting line which is extended in an axial direction is formed in a pillar portion defining a pocket. On facing surfaces of adjacent pillar portions, on an outer diameter side from the mold parting line, a first conical surface which slides in contact with an outer peripheral surface of a tapered roller is formed, and a first flat surface in a radial direction is formed in a portion on the outer diameter side from the conical surface. On an inner diameter side from the mold parting line, a second conical surface which slides in contact with the outer peripheral surface of the tapered roller is formed, and a second flat surface in a radial direction is formed in a portion on the inner diameter side from the second conical surface. | 02-11-2016 |
20160039450 | STEERING DEVICE - A steering device which contracts by an impulse load. A steering device includes an inner column having a cylindrical shape, a base plate having a first hole opened therein, an outer column having a cylindrical shape into which at least a part of the inner column is inserted, and having a slit formed by notching one insertion side end of the inner column, an outer column bracket to tighten the outer column along with a telescopic friction plate, and a connection member provided at a position straddling the first hole and a second hole, and detachably connecting the base plate and the inner column bracket. | 02-11-2016 |
20160033362 | METHOD FOR TESTING LIFE OF RADIAL-ROLLING BEARING AND RADIAL ROLLING-BEARING TESTING DEVICE - A method for testing a life of a radial rolling bearing and a radial rolling-bearing testing device. According to the method for testing the life of the radial rolling bearing and the radial rolling-bearing testing device, a portion of the radial rolling bearing is immersed in lubricant, and a bearing life is tested by rotating an outer ring and an inner ring relative to each other in a state where a radial load is applied to the radial rolling bearing. The radial load is applied in a horizontal direction. | 02-04-2016 |
20160033361 | RADIAL ROLLING-BEARING TESTING DEVICE - A radial rolling-bearing testing device includes a rotary shaft which an inner ring of a radial rolling bearing is fitted, a rotational driving section which rotates a rotary shaft, a lubricant reservoir which is configured so as to retain lubricant in which a portion of the radial rolling bearing is immersed, and a load applying section which is configured so as to apply a radial load to the radial rolling bearing. A bottom surface of the lubricant reservoir is a curved concave surface which has a partially cylindrical form which is concentric to a central axis of the rotary shaft. An entirety of a housing which supports the rotary shaft may be integrally formed. | 02-04-2016 |
20160025194 | TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION - Provided is a toroidal continuously variable transmission capable of preventing the application of bending stress to a variator shaft during rotation and the application of an eccentric load to each of support parts even when misalignment between the axis of a fitting hole formed in a post and the axis on which the variator shaft is supported occurs. | 01-28-2016 |
20160025134 | CAGE FOR ANGULAR BALL BEARING - Each of the pockets | 01-28-2016 |
20160016606 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that is capable of performing the automatic steering control without using any particular parts in a vehicle having functions of the automatic steering control and the manual steering control, and improves accuracy of the automatic steering by comprising a damping control function and correcting the target steering angle by the calculated actual steering angle. | 01-21-2016 |
20160016604 | STEERING DEVICE - A steering device which contracts by an impulse load. The steering device includes a cylindrical inner column having a first hole opened therein, an outer column having a cylindrical shape into which at least a part of the inner column is inserted and having a slit at one insertion side end of the inner column, an outer column bracket fixed to a vehicle body side member to support the outer column and to tighten the outer column along with a telescopic friction plate, an inner column bracket having a second hole opened therein and supported by the telescopic friction plate, and a shear pin provided at a position straddling the first hole and the second hole and detachably connecting the inner column and the inner column bracket to each other. | 01-21-2016 |
20160001813 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus for generating a PWM signal based on a calculated steering assist command value, PWM-controlling a motor via a motor drive circuit including switching elements, and assist-controlling a steering system that a motor relay is inserted between the motor drive circuit and the motor, comprises a steering status detecting section that detects a steering status of a steering wheel, outputs a longtime steering holding signal when detecting that the steering status is a longtime steering holding status, and outputs a normal steering signal when detecting that the steering status is a normal steering status, and a motor current control section that determines a motor current control value for controlling a motor current flowing in the motor relay in accordance with the longtime steering holding signal or the normal steering signal. | 01-07-2016 |
20160001810 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus including: a steering angle control section that calculates a motor current command value and a switching section that inputs the motor current command value to switch. The steering angle control section has a feedback control section that generates a feedback control current command value; an SAT compensating section that generates an SAT compensation current command value; and an output section that generates the motor current command value from the feedback control current command value and the SAT compensation current command value. The switching section is switched depending on a switching command of an automatic steering mode and a manual steering mode, a motor is drive-controlled based on the motor current command value in the automatic steering mode. | 01-07-2016 |
20150375774 | STEERING-BRACKET SUPPORTING APPARATUS AND STEERING APPARATUS - A supporting apparatus for a steering bracket includes, a steering bracket supporting a steering column and including a first capsule-side hole and a second capsule-side hole, a separation capsule including a first bracket-side hole and a second bracket-side hole, a resin member straddling the first bracket-side hole and the first capsule-side hole, a shear pin straddling the second bracket-side hole and the second capsule-side hole, and a cam mechanism including a rotatable weight portion to pull out the shear pin from the second bracket-side hole, the weight portion constituted to rotate around the shear pin by inertia due to a primary collision and to move to a front of a vehicle, and the cam mechanism constituted to pull out the shear pin from the bracket-side hole by a rotation of the weight portion. | 12-31-2015 |
20150369289 | TAPERED ROLLER BEARING | 12-24-2015 |
20150367879 | STEERING APPARATUS - A steering apparatus includes an input shaft of which one end is connected to a steering wheel, and a steering column that rotatably supports the input shaft. The steering column includes a cylindrical outer column and a cylindrical inner column that is partially inserted into the outer column and guides the outer column in an axial direction. The inner column has a stopper, which regulates a movable range of the outer column in the axial direction, on an outer circumferential surface, and the stopper enlarges the movable range when deformation or movement thereof occurs due to inertial force. | 12-24-2015 |
20150362061 | Ball Screw Device - There is provided a ball screw device having a cooling mechanism of efficiently cooling down a bearing device supporting a screw shaft of a ball screw or vicinities of the bearing device. For this purpose, the ball screw device ( | 12-17-2015 |
20150354688 | WORM WHEEL AND ELECTRIC POWER STEERING APPARATUS - A core of a worm wheel has an axial end surface formed with a first annular recess, another axial end surface formed with a second annular recess, and a third annular recess formed in a radially outer region of the first annular recess. A rim portion has a first inner circumferential portion fixed to the first annular recess, a second inner circumferential portion fixed to the second annular recess, and a protrusion engaged with the third annular recess. | 12-10-2015 |
20150354687 | WORM WHEEL AND ELECTRIC POWER STEERING APPARATUS - A core of a worm wheel has an axial end surface formed with a first annular recess nad and another axial end surface formed with a second annular recess. A rim portion has a first inner circumferential portion fixed to the first annular recess and a second inner circumferential portion fixed to the second annular recess. An outer circumferential wall surface of the second annular recess extends from a bottom surface of the second annular recess so as to be perpendicular to the bottom surface. A depth of the second annular recess is at least 0.1 mm but not deeper than half of a gate thickness. | 12-10-2015 |
20150354633 | ROLLING BEARING AND ITS PACKAGING METHOD - To provide a rolling bearing in which a favorable antirust performance can be obtained while reducing an amount of antirust oil than before, after removing chloride ions and sulfate ions from the entire surface of the bearing, antirust oil is provided to adhere thereto at an average film thickness of 4.5 μm to 10 μm, and the entire bearing is covered with a volatile corrosion inhibitor film such that a space between the volatile corrosion inhibitor film and the bearing is kept in a pressure-reduced condition. | 12-10-2015 |
20150353125 | ELECTRIC POWER STEERING APPARATUS | 12-10-2015 |
20150353123 | STEERING DEVICE - A steering device which slides when an impulse load is applied. A steering device includes an inner column having a cylindrical shape, an outer column into which at least a part of the inner column is inserted, a column bracket tightening the outer column, a pressed portion provided on the outer periphery of the inner column, a first tightening mechanism tightening the outer column in response to a rotation of a manipulation lever, a second tightening mechanism biasing a lock member to the pressed portion in a tilt direction in response to the rotation of the manipulation lever, and a separation mechanism. The separation mechanism causes the inner column detachable by changing a relative position between the inner column and the pressing bracket, when the impulse load is applied in a state where the first tightening mechanism and the second tightening mechanism are in work. | 12-10-2015 |
20150345609 | WORM WHEEL AND ELECTRIC POWER STEERING APPARATUS - A core of a worm wheel has an axial end surface formed with a first annular recess nad and another axial end surface formed with a second annular recess. An outer circumferential wall surface of a radially outer region of the second annular recess has a tapered surface extending from a bottom surface of the second annular recess to form an obtuse angle relative to the bottom surface, and a third annular recess formed radially outside the tapered surface. A cross-section of the third annular recess is a right-angled triangle having, as two sides, a surface parallel to the bottom surface of the second annular recess and a surface perpendicular to the bottom surface of the second annular recess. A rim portion has a first inner circumferential portion fixed to the first annular recess and a second inner circumferential portion fixed to the second annular recess. | 12-03-2015 |
20150344066 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that detects that a driver has steered the handle by using a steering torque detected by a torque sensor, switches to the manual steering mode due to a capacity (an integrated value) corresponding to a generated torque, and does not provide an uncomfortable feeling to the driver. | 12-03-2015 |
20150344062 | STEERING DEVICE - A steering device which slides when an impulse load is applied. The steering device includes an inner column having a cylindrical shape and a first hole opened therein, an outer column having a slit, an outer column bracket to tighten the outer column, an inner column bracket having a second hole opened therein, and a connection member provided at a position straddling the first hole and the second hole and detachably connecting the inner column and the inner column bracket. The telescopic friction plates are disposed at both sides of the outer column. The inner column bracket includes an arm portion connecting the telescopic friction plates disposed at both sides of the outer column, a neck portion projected from the arm portion, and a leg portion provided at an end opposite to the arm portion of the neck portion and contacting the inner column. | 12-03-2015 |
20150342074 | Semiconductor Module - To provide a semiconductor module capable of shortening of the manufacturing tact time, reducing the manufacturing costs, and improving assembility. A semiconductor module ( | 11-26-2015 |
20150330451 | ROLLING BEARING AND GREASE COMPOSITION USED THEREIN - A rolling bearing including a plurality of rolling elements rollably provided between an inner ring and an outer ring and having enclosed therein a grease composition obtained by adding three kinds of antirust agents which are a carboxylic acid-based antirust agent, a carboxylate-based antirust agent and an amine-based antirust agent, to a base oil which contains at least one kind of a mineral oil and a synthetic oil and has a kinematic viscosity of 200 to 400 mm | 11-19-2015 |
20150323008 | TAPERED ROLLER BEARING - A tapered roller bearing ( | 11-12-2015 |
20150307805 | GREASE-ENCLOSED BEARING - A grease-enclosed bearing having enclosed therein a grease composition containing a thickener which is a diurea compound represented by Formula (1) or a mixture thereof, and a base oil containing an alkyldiphenyl ether oil and a poly-α-olefin oil as an optional component in a mass ratio of alkyldiphenyl ether oil:poly-α-olefin oil=from 40:60 to 100:0: | 10-29-2015 |
20150298725 | ELECTRIC POWER STEERING SYSTEM - According to an electric power steering system of the present invention, a bearing support housing member supporting at least one rolling bearing is preferably formed of a resin which can be continuously used in a temperature environment ranging from −40° C. to 85° C., which is made of a resin composition containing a fibrous filler ranging from 30% by mass to 55% by mass, which has a coefficient of linear expansion ranging from 1.2×10 | 10-22-2015 |
20150298724 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus has a first rolling bearing and a second rolling bearing rotatably supporting an output shaft. The first rolling bearing is provided between an inner peripheral surface of a through-hole of a gear housing and an outer peripheral surface of the output shaft. The second rolling bearing is provided between an inner peripheral surface of an intermediate plate and the outer peripheral surface of the output shaft. The intermediate plate has an outer peripheral portion supported and fixed in an opening portion of the gear housing. | 10-22-2015 |
20150298269 | METHOD FOR CENTERING GRINDING WHEEL IN THREAD GRINDER AND MEASUREMENT DEVICE FOR CENTERING - In a thread grinder which grinds a thread grove on an inner surface of a workpiece while a rotation axis of a grinding wheel shaft is inclined with respect to an axis of a main shaft, a centering master which has a cylindrical outer surface is mounted to the main shaft. A measuring unit including two measuring instruments such that probes can contact two edges of a grinding wheel is mounted to the centering master. The origins of the measuring instruments are set by the probes contacting the cylindrical outer surface of the centering master. The measuring unit is moved in the axial direction of the centering master to bring the probes of the two measuring instruments into contact with the edges of the grinding wheel, respectively. The position of the grinding wheel shaft is adjusted such that measured values obtained by measuring instruments become same. | 10-22-2015 |
20150290732 | GRINDING SPINDLE FOR SCREW GRINDER | 10-15-2015 |
20150284024 | TORQUE TRANSMISSION JOINT AND ELECTRIC POWER STEERING APPARATUS - A shock-absorbing member | 10-08-2015 |
20150274202 | Electric Power Steering Apparatus - There is provided an electric power steering apparatus capable of dealing with abnormality when the abnormality happens in the torque, without being affected by an abnormal torque signal and without giving the driver a feeling of strangeness. Abnormality is detected with a double detection configuration including a main ECU clip and a sub ECU interlock. Then when abnormality is detected in steering torque detected by a torque sensor, the input of a main ECU clip is switched from the steering torque detected by the torque sensor to a torque alternative value, and the input value of the sub ECU interlock is switched from a steering assist command value subjected to limiting at the main ECU clip to zero. | 10-01-2015 |
20150259764 | ROLLING BEARING - In the rolling bearing of the present invention, at least one of the bearing rings is obtained by applying a induction heat treatment to a spheroidizing annealed steel material having a DI value of 1.0 or more to form a hardened layer having a hardness of 550 HV or more on at least a raceway surface and a fitting surface, and in the induction heat-treated bearing ring, (A) an average retained austenite amount is 12 vol % or less, (B) the raceway surface has a retained austenite amount of 12 vol % or more and a residual compressive stress of −100 MPa or less, and (C) a difference between a hardness of the raceway surface and a minimum hardness of a region having a hardness of less than 550 HV is 150 HV or more. | 09-17-2015 |
20150251682 | TILT STEERING SYSTEM - A construction is realized in which a large difference in operation force to operate an adjustment lever | 09-10-2015 |
20150244302 | ELECTRIC POWER STEERING APPARATUS - An object of the present invention is to provide an electric power steering apparatus capable of stably performing drive of FETs of an inverter by means of a simplified constitution and control. | 08-27-2015 |
20150239494 | Physical Quantity Detecting Device and Electric Power Steering Apparatus Using Same - A physical quantity detecting device that can determine abnormality of a signal transmission system between a physical quantity detector and a controller and an electric power steering apparatus using the physical quantity detecting device are provided. The physical quantity detecting device includes a physical quantity detector configured to detect a physical quantity and to output a physical quantity detection signal and a controller configured to receive the physical quantity outputted from the physical quantity detector via a transmission line and to perform a control operation on the basis of the physical quantity. The physical quantity detector outputs a diagnostic signal for detecting abnormality of a transmission system between the controller and the physical quantity detector and the controller includes an abnormality determining unit configured to determine abnormality of the transmission system on the basis of the diagnostic signal when receiving the diagnostic signal. | 08-27-2015 |
20150232118 | IMPACT ABSORBING STEERING APPARATUS - A structure is achieved in which two portions in the axial direction of a cable | 08-20-2015 |
20150225011 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus has a first rolling bearing and a second rolling bearing rotatably supporting an output shaft. The first rolling bearing is provided between an inner peripheral surface of a through-hole of a gear housing and an outer peripheral surface of the output shaft. The second rolling bearing is provided between an inner peripheral surface of an intermediate plate press-fitted and fixed in an opening portion of the gear housing and the outer peripheral surface of the output shaft. An outer peripheral portion of the intermediate plate has alternately arranged large diameter portions and small diameter portions, and the large diameter portions are press-fitted in the gear housing. | 08-13-2015 |
20150217804 | TORQUE TRANSMISSION JOINT AND ELECTRIC POWER STEERING APPARATUS - A shock-absorbing member | 08-06-2015 |
20150204395 | ROLLER CLUTCH EQUIPPED WITH SUPPORT BEARINGS - Provided is a low-cost roller clutch equipped with support bearings having excellent transmission performance and durability and for which it is possible to surely prevent interference between component members. Of the component members of a roller clutch | 07-23-2015 |
20150203146 | TILT STEERING COLUMN DEVICE - A tilt steering column device is provided having construction in which a displacement bracket | 07-23-2015 |
20150192173 | RETAINER FOR RADIAL ROLLER BEARING - In a circumferential end face | 07-09-2015 |
20150191200 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that realizes vibration suppression of response characteristics and has a control performance having resistance properties against disturbances such as a road surface change by using a velocity I-P control (a proportional-lead type PI control) in a vehicle having functions of an automatic steering control and a manual steering control. | 07-09-2015 |
20150191199 | ELECTRIC POWER STEERING APPARATUS | 07-09-2015 |
20150176646 | CAGE FOR RADIAL ROLLER BEARING | 06-25-2015 |
20150175198 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus includes an input shaft to which steering force from a steering wheel is applied, an output shaft to which assisting force generated by an electric motor is applied, and a torque detection sleeve. One of the input shaft and the output shaft includes a cylindrical portion having a female stopper portion and a circumferential groove. The other of the input shaft and the output shaft has a male stopper portion being in concave-convex engagement with the female stopper portion and relatively rotatable in a given angular range. An edge of a base end portion of the torque detection sleeve is clinched to the circumferential groove. The circumferential groove is provided on a portion of an outer peripheral surface of the cylindrical portion radially overlapping a stopper engagement region in which the female stopper portion and the male stopper portion are engaged with each other. | 06-25-2015 |
20150158458 | STEERING APPARATUS - A steering apparatus ( | 06-11-2015 |
20150151776 | TELESCOPIC STEERING APPARATUS - A telescopic steering apparatus includes a steering column having an outer column and an inner column. An inner peripheral surface of the outer column has a supporting portion that supports the inner column. An inner peripheral surface of the outer column further has a shock absorbing portion at a location shifted toward one side in an axial direction from an axial end face of the inner column, a diameter of an inscribed circle of the shock absorbing portion being smaller than an outer diameter of the inner column. The outer column, including the supporting portion and the shock absorbing portion, and a movable bracket are integrally formed by an expansion forming. | 06-04-2015 |
20150122065 | Ball Screw Device - There is provided a ball screw device capable of allowing interference to be easily elastically deformable and decreasing friction resistance of a seal member with respect to a screw shaft without damaging seal properties of the seal member. A predetermined section of a land sliding-contact portion ( | 05-07-2015 |
20150117805 | ROLLING BEARING UNIT WITH COMBINATION SEAL RING - A structure which can ensure a movement of a seal lip | 04-30-2015 |
20150111435 | Connector - There is provided a connector capable of realizing simple assembly and prevention of entering of foreign matter. A connector terminal ( | 04-23-2015 |
20150107398 | TELESCOPIC STEERING APPARATUS AND OUTER COLUMN - Construction of an outer column for a telescopic steering apparatus is achieved in which sufficient strength is maintained even when a steering lock apparatus is assembled, and smooth operation is maintained when making it possible to adjust the forward/backward position of a steering wheel, and when maintaining the adjusted position. Of the end sections | 04-23-2015 |
20150090067 | Electric Steering Wheel Position Adjustment Apparatus - The electric steering wheel position adjustment apparatus of the present invention is constructed so as to improve the support rigidity of a portion that constitutes a steering column apparatus thereof, such that the steering shaft | 04-02-2015 |
20150088381 | ELECTRIC POWER STEERING APPARATUS - An electric power steering apparatus that is capable of efficiently suppressing vibrations and simultaneously minimizing steering performance degradation such as an increase in a steering wheel's viscous feeling by extracting a vibration component having an arbitrary amplitude and an arbitrary frequency range depending on an electric power steering state parameter and feeding back a vibration suppression compensation value determined depending on the extracted vibration component to a current command value. The apparatus includes a current command value determining section that determines a current command value based on a steering torque and a velocity; a vibration extraction filter that extracts a vibration component having a predetermined amplitude and a predetermined frequency range depending on an electric power steering state parameter; and a compensation value determining section that determines a vibration suppression compensation value based on the vibration component extracted by the vibration extraction filter. | 03-26-2015 |
20150068264 | MANUFACTURING METHOD FOR BEARING OUTER RING - When the column-shaped raw material | 03-12-2015 |
20150044090 | Strength Evaluation Method of Die Casting Product and Die Casting Product - There are provided a strength evaluation method of a die casting product capable of appropriately evaluating the strength of the die casting product, and a die casting product in which the strength is evaluated by the strength evaluation method. A breakage test is performed by a simple strength tester after casting, and then, a strength reduction ratio is estimated based on an area ratio of cold flakes in a broken surface obtained by broken surface observation. Alternatively, ultrasonic flaw detection is performed for an internal defect in a predetermined range of a high stress portion of the die casting product, calculated by stress analysis in advance, and the die casting product is evaluated to have a predetermined strength when a defect ratio obtained by dividing a total area of the internal defect in the predetermined range by a total defect detection area is less than or equal to a predetermined value. | 02-12-2015 |
20150043850 | ROLLING BEARING APPARATUS - In a creep preventing rolling bearing apparatus | 02-12-2015 |
20150043841 | Seal Mechanism of Linear Guide Apparatus - To improve sealability of end portions of under seal in a linear guide apparatus. A seal mechanism of the linear guide apparatus includes under seals and side seals to provide seals between a guide rail and a slider. Auxiliary lip is attached on an inner surface of an end cap and in sliding contact with the guide rail. The auxiliary lip is bent in its middle and covers the end portion of the under seal from two directions. The auxiliary lip includes an axial direction lip and an intersecting direction lip integrally formed with the axial direction lip and continuously extending from an end portion of the axial direction lip. | 02-12-2015 |
20150041240 | STEERING APPARATUS - A steering apparatus has a pinion shaft that transmits rotation of a steering wheel to a rack shaft, a bearing that is internally fitted to the housing, rotatably supports one end of the pinion shaft on the housing, and bears a radial load and a thrust load acting on the pinion shaft, and a retaining ring that is internally fitted to an annular groove provided on the inner circumferential surface of the housing and has a C-shaped part and an opening defined by two opposed ends of the C-shaped part, the C-shaped part being in contact with an end face of an outer ring of the bearing to thereby fix the outer ring of the bearing to the housing. The retaining ring is internally fitted to the annular groove in such a way that the opening faces toward the rack teeth as seen from an axial direction of the pinion shaft. | 02-12-2015 |
20150040701 | Single-Axis Actuator - As compared to a single-axis actuator in which a ball returning passage of a ball screw mechanism is made of a circulating tube, the cross-sectional shape perpendicular to the longitudinal direction of a threaded shaft of a slider can be made small, when the diameter of the outer circumferential circle of the threaded shaft of the present invention is same as that of the circulating tube type, and the load capacity can be made large, when the size in the longitudinal direction of the threaded shaft of the slider of the present invention is same as that of the circulating tube type. The ball returning passage for returning the balls ( | 02-12-2015 |
20150035464 | INVERTER DEVICE AND POWER STEERING DEVICE - An inverter device includes a switch circuit configured by series-connecting two N-channel semiconductor switching elements in opposite directions so that the switch circuit makes or breaks electrical connection between a DC power supply and an inverter circuit and a control circuit carrying out a protecting operation in which when the control circuit output a control signal to control switching of the inverter circuit and an operating condition is met, the control circuit stops output of the control signal to turn off all switching elements configuring the inverter circuit and the switch circuit. In the protecting operation, the switch circuit is turned off after output of the control signal has been stopped. | 02-05-2015 |
20150023618 | Linear Guide Apparatus - A trunk portion ( | 01-22-2015 |
20150015104 | ACTUATOR, STATOR, MOTOR, ROTATIONAL-TO-LINEAR MOTION CONVERSION MECHANISM, AND LINEAR ACTUATOR - An actuator, a stator, a motor, a rotational-to-linear motion conversion mechanism, and a linear actuator are provided. The motor, the actuator, and the linear actuator at least include a screw shaft and a nut. The screw shaft is a rod-like member, and at least a part of the surface of the screw shaft has a thread. The nut is screwed onto the thread on the screw shaft, and moves the screw shaft in a linear motion direction that is a direction in parallel with a rotational center. The stator, the motor, the actuator, and the linear actuator can at least convert a rotational motion into a linear motion. | 01-15-2015 |
20140373650 | Rack and Pinion Steering Gear Unit - Construction is achieved that is able to effectively prevent the displacement in the axial direction of a ball bearing | 12-25-2014 |
20140363115 | ROLLING BEARING AND ITS MANUFACTURING METHOD - On the contact surface of the rolling bearing part made of alloy steel containing appropriate amounts of Cr and Mo, the C+N content is 0.9 to 1.4 mass % and the area ratio of carbide is 10% or less. At the depth of 1% of the diameter of the rolling element from the contact surface, the hardness is 720 to 832 in Hv, the amount of retained austenite is 20 to 45 volume %, and the compressive residual stress is 50 to 300 Mpa. At the depth of 1 to 3% of the diameter of the rolling element from the contact surface, the average value of the prior austenite grain size is 20 μm or less and the maximum value of the prior austenite grain size is 3 times or less the average value, and the hardness of the core portion is 400 to 550 in Hv. | 12-11-2014 |
20140360804 | TORQUE DETECTION APPARATUS AND ELECTRIC POWER STEERING APPARATUS - The torque detection apparatus detects torque using torsion of a torsion bar. The torque detection apparatus includes a first rotating shaft and a second rotating shaft connected with a torsion bar in which torsion is produced when torque is applied, at least one optical scale that moves with rotations of the first rotating shaft and the second rotating shaft, at least one optical sensor that is paired with the optical scale, and detects the polarization of transmissive light or reflected light, the polarization varying depending on a position where light source light is passed through or reflected on the optical scale, and a computing unit that computes a relative rotational angle of the optical scale with respect to the optical sensor, and computes rotational displacements of the first rotating shaft and the second rotating shaft. | 12-11-2014 |
20140348455 | ROLLING BEARING WITH SEAL RING - Construction of a rolling bearing with seal ring can be achieved in which, while securing the required seal performance, the rotation support portion can be made more compact by shortening the dimension in the axial direction of the installation space for an inner ring | 11-27-2014 |
20140321777 | Side Seal and Linear Guide Apparatus Comprising the Same - To provide a side seal capable of preventing the entrance of the foreign matter to the inside of the slider and the outflow of the lubricant without damaging or reducing the original function of the lip, and to provide a linear guide apparatus including the above described side seal. A linear guide apparatus ( | 10-30-2014 |
20140311273 | STEERING COLUMN AND MANUFACTURING METHOD THEREOF, AND STEERING APPARATUS USING THIS STEERING COLUMN - Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column | 10-23-2014 |
20140311258 | OPTICAL SENSOR, METHOD FOR MANUFACTURING OPTICAL SENSOR, OPTICAL ENCODER, TORQUE DETECTION APPARATUS, AND ELECTRIC POWER STEERING APPARATUS - An optical sensor, an optical encoder, a torque detection apparatus, and an electric power steering apparatus less affected by fluctuations in the amount of detected light and with an improved resolution are provided. The optical sensor includes a first polarizing layer that splits incident light to light with a first polarization direction, a first photoreceiver that receives first polarized light split by the first polarizing layer, a second polarizing layer that splits the incident light to light with a second polarization direction, and a second photoreceiver that receives second polarized light split by the second polarizing layer. The first photoreceiver and the second photoreceiver are positioned alternatingly and spaced uniformly with each other. | 10-23-2014 |
20140306099 | OPTICAL SCALE, METHOD FOR MANUFACTURING OPTICAL SCALE, AND OPTICAL ENCODER - An optical scale, a method for manufacturing an optical scale, and an optical encoder less affected by fluctuations in the amount of detected light and with an improved resolution are provided. The optical scale includes a plurality of wires provided thereon so that the plurality of wires do not intersect each other and each of the tangential directions of the respective wires changes continuously. The optical encoder includes the optical scale, a light source, an optical sensor, and a computing unit. The optical sensor includes a first polarizing layer that splits incident light that is light source light from the light source passed through or reflected on the optical scale and being incident on the first polarizing layer to a first polarization direction, a second polarizing layer that splits the incident light to a second polarization direction, a first photoreceiver that receives first polarized light split by the first polarizing layer, and a second photoreceiver that receives second polarized light split by the second polarizing layer. | 10-16-2014 |
20140301687 | SUPERFINISHING MACHINE, SUPERFINISHING METHOD AND OUTER RING OF BEARING HAVING SUPERFINISHED RACEWAY SURFACE - A superfinishing machine and a superfinishing method which can perform axially uniform finishing on a logarithmically crowned surface formed on an inner peripheral surface of an annular member in a short time, and an outer ring of a bearing having a raceway surface superfinished by the superfinishing method, are provided. A superfinishing machine | 10-09-2014 |
20140287863 | DRIVE APPARATUS FOR AN ELECTRIC AUTOMOBILE - Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission | 09-25-2014 |
20140260747 | Method for Manufacturing Ball Screw and Ball Screw - A method for manufacturing a ball screw according to the present invention includes a seal fixing step of fixing a ring shaped seal ( | 09-18-2014 |
20140254971 | ROLLING BEARING - In the cage | 09-11-2014 |
20140254968 | GREASE COMPOSITION FOR ROLLING BEARING AND ROLLING BEARING - The present invention provides: a grease composition for rolling bearings which includes a base oil and a diurea compound incorporated therein as a thickener, the base oil including at least one oil selected from trimethylolpropane fatty acid ester oils and pentaerythritol fatty acid esters or a mixed oil which includes the at least one oil and another lubricating oil and having a kinematic viscosity at 40° C. of 19-35 mm | 09-11-2014 |
20140248013 | ROLLING BEARING UNIT WITH ENCODER FOR SUPPORTING WHEEL - Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section | 09-04-2014 |
20140246847 | STEERING COLUMN AND MANUFACTURING METHOD THEREOF - A steering column has an overall hollow and cylindrical shape at least part of which is formed using a column member. The column member includes a main body portion having one-side end section and the other-side end section and a cylindrical member having one-side end section and the other-side section. The cylindrical member is joined in the axial direction with respect to the main body portion by fitting and fastening the other-side end section of the cylindrical member inside the one-side end section of the main body portion. The inner diameter of the end surface of the other-side end section of the cylindrical member is smaller than the inner diameter of a portion of the other-side end section of the cylindrical member. The portion of the other end section of the cylindrical member constitutes a joined section between the main body and the cylindrical member. | 09-04-2014 |
20140246524 | Spindle System and Electrostatic Painting System - Each spindle system turbine blade has front and rear surfaces relative to the rotational direction. The rear surface is a recessed columnar surface with a radius of curvature R1, while the front surface is a smooth continuous surface having a projecting columnar surface with a radius of curvature R2 larger than R1 and a flat surface between which a projecting columnar surface with a radius of curvature R3 larger than R1 is arranged. Among the three surfaces, the projecting columnar surface is at an inlet side of a channel straddling the projecting columnar surface, while the flat surface is at the outlet side. A space sandwiched between a facing front surface and rear surface of adjoining turbine blades forms a gas channel. Gas ejected from a nozzle flows in from an inlet in a direction along the arc-shaped curve of the recessed columnar surface and out an outlet. | 09-04-2014 |
20140246266 | STEERING COLUMN SUPPORT APPARATUS - A steering column support apparatus for an electric power-steering apparatus with a tilt mechanism is achieved that is capable of sufficiently maintaining support rigidity of a tilt pivot shaft | 09-04-2014 |
20140243136 | DRIVE APPARATUS FOR AN ELECTRIC AUTOMOBILE - A drive apparatus for an electric automobile in which a planetary gear transmission | 08-28-2014 |
20140233876 | Roller Bearing Unit - A rolling bearing unit with decreased weight and improved durability is provided. An outer-ring core, manufactured using a ferrous alloy, forms an outer ring and is molded to an outer-ring main body that is manufactured using a synthetic resin containing reinforced fibers or using an aluminum alloy. Outer-ring raceway members are fitted into and fastened to mating concave surfaces of the inner circumferential surface of the outer-ring core that are exposed from the outer-ring main body. A hub core, manufactured using a ferrous alloy, forms a hub and is molded to a hub main body made using a synthetic resin containing reinforced fibers or using an aluminum alloy. Around the outer circumferential surface of the hub core, inner-ring raceway members are fitted onto and fastened to a fitting surface of the outer circumferential surface of the hub core that is exposed from the hub main body. | 08-21-2014 |
20140219599 | ANGULAR BALL BEARING - An angular ball bearing includes an outer ring having a raceway surface on the inner circumferential surface thereof, a shoulder portion on one side of the raceway surface and a counter bore on the other side thereof; an inner ring having a raceway surface on the outer circumferential surface thereof, a shoulder portion on the other side of the raceway surface and a counter bore on one side thereof; and a plurality of balls provided between the raceway surfaces of the outer ring and the inner ring so as to be rotatable at a contact angle. The outer diameter dimension of the shoulder portion of the inner ring is larger than the inner diameter dimension of the shoulder portion of the outer ring, and the shoulder portion of the outer ring and the shoulder portion of the inner ring are overlapped with each other when viewed in the axial direction. | 08-07-2014 |
20140219587 | Linear Guide Apparatus - A linear guide apparatus is provided in which an excellent sealing performance is achieved. The linear guide apparatus includes a retainer for retaining plural cylindrical rollers rotatably in a rolling element rolling passage. The retainer includes an opening portion and accommodates for retention of the plural cylindrical rollers in the opening portion. The retainer also includes an endless seal unit surrounding the opening portion. The seal unit includes an inward facing lip inclining toward the inner side of the opening portion and extending toward the guide rail to be in sliding contact with the guide rail. The inward facing lip is formed continuously all around the seal unit. The seal unit includes an outward facing lip inclining toward the outer side of the opening portion and extending toward the guide rail to be in sliding contact with the guide rail, in addition to the inward facing lip. | 08-07-2014 |
20140217713 | STEERING APPARATUS - A steering apparatus includes a steering shaft, a column rotatably supporting the steering shaft, a bracket attached to the column, a capsule configured to be fixed to a vehicle body and having upper and lower holding plates sandwiching the flange portion, a coupling part coupling the flange portion and the capsule such that the flange portion is detachable from the capsule by an impact force toward the front of the vehicle body, a rounded portion formed at a front end portion of the flange portion with a curvature radius varying along a vehicle-width direction, and an energy-absorbing member. The energy-absorbing member includes a rear portion engaged with the capsule, a front extension portion extending forward from the rear portion, a bent portion bent in front of the rounded portion, and a rear extension portion extending rearward and inclined in the vehicle-width direction with respect to the column center axis. | 08-07-2014 |
20140217205 | Air Motor and Electric Painting Device - An air motor and an electric painting device improves driving efficiency, and includes a housing, a main shaft inserted inside of the housing, an impeller fixed concentrically with the main shaft to an inserted portion of the main shaft and having a plurality of turbine blades formed on the outer periphery, bearings for rotatably supporting the main shaft and the impeller, and a nozzle having a tubular or hole-shaped channel for ejecting compressed air to the respective turbine blades for rotating the impeller along the circumference. When M | 08-07-2014 |
20140210196 | STEERING APPARATUS - A steering apparatus includes an inner column, an outer column fitted onto the inner column, a vehicle body mounting bracket, a distance bracket fixed to the outer circumference of the outer column and slidably held between left and right side plates of the vehicle body mounting bracket, and a tightening rod. The distance bracket is formed with telescopic slots through which the tightening rod is inserted. The distance bracket includes left and right front tightening portions and left and right rear tightening portions. The axial distance between the pair of left and right front tightening portions and the pair of left and right rear tightening portions is shorter than the axial length of each telescopic slot. The outer column is formed with a pair of left and right through-holes into which the left and right front tightening portions or the left and right rear tightening portions is inserted. | 07-31-2014 |
20140205226 | ROLLING DEVICE - The rolling device of the present invention is a rolling device that is equipped with an inner ring, an outer ring, and a plurality of rolling elements disposed between the inner ring and the outer ring so as to freely roll, and that is packed with a lubricant composition containing a gelling agent in which a difference between a worked consistency and an unworked consistency is 40-130, and this rolling device has low-torque characteristics, is excellent in terms of recovery property and heat resistance, is free from lubricant leakage, and has a long life. | 07-24-2014 |
20140200086 | TELESCOPIC SHAFT - A telescopic shaft includes a male shaft having an outer circumference formed with a plurality of protruding teeth, and a female shaft having an inner circumference formed with a plurality of tooth grooves and fitted onto the male shaft. The protruding teeth and the tooth grooves are engaged such that the male shaft and the female shaft are relatively axially slidable and a rotational torque is transmittable between the male shaft and the female shaft. At least one of the male shaft and the female shaft is configured such that the radial rigidity of a portion of the at least one of the male shaft and the female shaft in an axial range of a region where the protruding teeth and the tooth grooves are engaged is lower than the radial rigidity of another portion of the at least one of the male shaft and the female shaft. | 07-17-2014 |
20140199009 | GREASE COMPOSITION AND ROLLING DEVICE - The present invention relates to: a grease composition that includes a base oil which has a pressure-viscosity coefficient as measured at 40° C. of 33 GPa | 07-17-2014 |
20140197293 | STEERING COLUMN SUPPORT CONSTRUCTION - Provided is steering column support construction that together with eliminating strong rubbing between the bottom surface of a vehicle-side bracket | 07-17-2014 |
20140195204 | DESIGN ASSISTANCE DEVICE FOR STEERING DEVICE AND METHOD OF ASSISTING STEERING DEVICE DESIGN - A design assistance device for a steering device and a method of assisting a steering device design which assists a design of a steering device including an intermediate shaft by using existing components of a tube yoke and a shaft yoke. A design assistance device | 07-10-2014 |
20140195119 | POWER STEERING APPARATUS - An electric power steering apparatus for generating a PWM signal based on a calculated steering assist command value, PWM-controlling a motor via a motor drive circuit including switching elements, and assist-controlling a steering system that a motor relay is inserted between the motor drive circuit and the motor, includes a steering status detecting section that detects a steering status of a steering wheel, outputs a longtime steering holding signal when detecting that the steering status is a longtime steering holding status, and outputs a normal steering signal when detecting that the steering status is a normal steering status, and a motor current control section that determines a motor current control value for controlling a motor current flowing in the motor relay in accordance with the longtime steering holding signal or the normal steering signal. | 07-10-2014 |
20140195117 | Torque Detecting Device and Electric Power Steering Device - There is provided a torque detecting device for providing a highly accurate torque signal, and an electric power steering device using the torque detecting device. A torque sensor is provided with a first coil pair and a second coil pair, which detect a relative displacement between an input shaft and an output shaft by corresponding the relative displacement to a change in impedance. Magnetization signal generating units supply exciting currents with different magnetization frequencies to the first coil pair and a second coil pair, respectively. The magnetization frequency difference is set to 3.5 kHz or higher. Moreover, low-pass filters for intercepting passage of a frequency equivalent to the magnetization frequency difference are deployed in signal processing circuits respectively. | 07-10-2014 |
20140190762 | POWER ASSIST APPARATUS - A power assist apparatus includes an electric motor, a speed reducer, an annular torque sensor, a housing in which the speed reducer and the torque sensor are arranged, and an annular center aligning bracket. The housing includes a first housing element and a second housing element, and one of the first housing element and the second housing element is made of a synthetic resin. The center aligning bracket is fixed to the one of the first housing element and the second housing element by insert molding such that the center aligning bracket is concentric to the one of the first housing element and the second housing element. The first housing element and the second housing element are joined such that the first housing element and the second housing element are engaged with each other in an axial direction of the torque sensor via the center aligning bracket. | 07-10-2014 |
20140190760 | ELECTRIC POWER-STEERING APPARATUS - Structure of an electric power-steering apparatus is achieved that is capable of both preventing damage to a connector | 07-10-2014 |
20140187339 | TELESCOPIC SHAFT - A telescopic shaft includes a male shaft having an outer circumference on which a plurality of protruding teeth are formed, and a female shaft having an inner circumference on which a plurality of tooth grooves are formed. The tooth grooves of the female shaft are fitted onto the protruding teeth of the male shaft such that the male shaft and the female shaft are relatively slidable in an axial direction and such that a rotational torque is transmittable between the male shaft and the female shaft. One of a curvature radius of a tooth surface of the protruding teeth and a curvature radius of a tooth surface of the tooth grooves is smaller than the other of the curvature radius of the tooth surface of the protruding teeth and the curvature radius of the tooth surface of the tooth grooves. | 07-03-2014 |
20140184107 | SWITCH DRIVING CIRCUIT, INVERTER APPARATUS AND POWER STEERING APPARATUS - A switch driving circuit electrically opens and closes a switch circuit including two N-channel type semiconductor switching elements series connected in a reverse direction, thereby electrically opening and closing a path between a DC power supply and an inverter circuit. The switch driving circuit has a reference potential point in common with the inverter circuit and supplies an opening/closing control signal to the switch circuit. The switch driving circuit includes a half bridge circuit including two semiconductor switching elements series connected between a driving power supply and the reference potential point. Two protection diodes are connected in parallel to the semiconductor switching elements respectively. At least one current blocking diode is configured to block current from flowing from the reference potential point through the diode to the switching circuit side when the DC power supply is connected to the inverter circuit in reverse polarity. | 07-03-2014 |
20140182401 | ELECTRONIC POWER-STEERING APPARATUS - Construction of an electric power-steering apparatus is achieved that, by stably suppressing backlash of an output shaft | 07-03-2014 |
20140179480 | CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE - Construction of a continuously variable transmission device for a vehicle is achieved that, when a shift lever is shifted to a selection position for a direction opposite the traveling direction at that time, it is capable of preventing the vehicle from continuing to travel at high speed in a direction opposite the direction intended by the operator. When the shift lever is shifted to a selection position of a direction opposite the traveling direction at that time, and the vehicle speed is faster than a specified speed (V | 06-26-2014 |
20140169721 | THRUST ROLLER BEARING AND METHOD FOR MANUFACTURING THRUST RACE THEREOF - A thrust race of a thrust roller bearing has a race portion and a cylindrical portion extending from the race portion in an axial direction. At a plurality of locations along a circumferential direction on the cylindrical portion, cutout portions are formed such that each of the cutout portions is recessed in the axial direction from a distal edge of the cylindrical portion toward the race portion. A protrusion is provided at a portion closer to the race portion from a bottom edge of each of the cutout portions such that the protrusion protrudes in a radial direction from the cylindrical portion toward a side away from the race portion. The protrusion serves as a race-retaining locking portion to prevent a race from moving out from a mating member on which the race is mounted. | 06-19-2014 |
20140167363 | Seal for Rolling Screw, and Rolling Screw - A seal for a rolling screw capable of preventing an unintended contact with the threaded shaft, while maintaining advantages of a lip tilting perpendicularly to the axial direction, and the rolling screw using the seal are provided. In the seal for the rolling screw including: a circular ring part ( | 06-19-2014 |
20140164826 | In-Vehicle Electronic Control Device - An in-vehicle electronic control device for diagnosing the details of an abnormality of a microcomputer appropriately is provided. A monitoring function for detecting a malfunction by monitoring input/output of a main function of a hardware part and a monitoring function for detecting an abnormality by monitoring the calculating result of a main function in a software part are provided in a microcomputer. The main function to be monitored is implemented with a different structure than the malfunction/abnormality monitoring function. Furthermore, a malfunction processing circuit for monitoring an abnormality of the microcomputer is provided outside the microcomputer. | 06-12-2014 |
20140161380 | Ball Screw Bearing Device - Provided is a cooling mechanism capable of efficiently cooling a ball screw bearing device or the vicinity of the bearing device. For that reason, a ball screw bearing device includes an inner ring that fits to an end portion of a screw shaft of a ball screw and rotates integrally with the screw shaft; an outer ring that rotatably supports the inner ring via a plurality of rolling elements arranged on an outer peripheral surface of the inner ring; and a housing that has an inner peripheral surface that abuts against the outer peripheral surface of the outer ring and rotatably supports the screw shaft. A plurality of through-holes for cooling that passes through both ends of the housing and causes a cooling medium to pass therethrough are formed in an axial direction of the housing. | 06-12-2014 |
20140157927 | Ball Screw and Assembling Method Thereof - To improve workability and sealing performance of a coolant when a plurality of nuts in a ball screw are brought into contact with one another, the plurality of nuts being coupled to one another, assembled to one threaded shaft and cooled by flowing the coolant through through-holes formed in the plurality of nuts in axial directions of the plurality of nuts. The ball screw includes counterbores of the through-holes formed on opposing end faces of both of adjoining nuts, and a ring-shaped sealing member inserted thereto. The counterbores are formed such that a depth of one counterbore is larger than a length of the sealing member, and the a depth of the other counterbore is smaller than the length of the sealing member, and such that circumferential positions of the counterbores of the adjoining nuts face each other when a desired preload is exerted. | 06-12-2014 |
20140156144 | MOTOR CONTROL APPARATUS AND ELECTRIC POWER STEERING APPARATUS PROVIDED WITH THE SAME - A motor control apparatus that is capable of making the whole control system robust not only with respect to motor parameter variations such as the temperature variation and the manufacturing unevenness but also with respect to disturbances while using a cheap and compact one-shunt type current detecting circuit and simultaneously diagnosing an estimation error and an electric power steering apparatus provide with the motor control apparatus. | 06-05-2014 |
20140155210 | PULLEY APPARATUS - Construction is achieved by which it is possible definitely prevent the occurrence of creep between a pulley | 06-05-2014 |
20140153849 | Guide Device - A guide device is provided in which rolling elements can be assembled into circulation paths in a short time. A slider body is provided with rolling element insertion holes open at positions of a member mounting surface superposed over a return passage. The insertion holes extend in the length directions of leg parts and reach positions which bisect cross-sections of the return passage. The opened shapes of the insertion holes are elongated hole shapes with dimensions in the rolling element movement direction larger than dimensions in the width directions. For this reason, if balls are inserted from the rolling element insertion holes, spaces are formed inside of the return passage visible from the rolling element insertion holes in the rolling element movement direction of the balls. A rod-shaped fixture is inserted into each space to press the balls in the rolling element movement direction of the return passage. | 06-05-2014 |
20140150596 | MANUFACTURING METHOD FOR A STEERING COLUMN, AND STEERING APPARATUS THAT USES THAT STEERING COLUMN - Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column | 06-05-2014 |
20140148081 | GRINDING MACHINE AND GRINDING METHOD - Teaching (contacting) operation is performed, and from the contact position (SX), the workpiece ( | 05-29-2014 |
20140147071 | THRUST ROLLER BEARING WITH RACES - Construction of a thrust roller bearing with races is achieved in which a function of preventing a cage | 05-29-2014 |
20140142012 | GREASE COMPOSITION FOR EV/HEV DRIVING MOTOR BEARING AND EV/HEV DRIVING MOTOR BEARING - A grease composition for EV/HEV driving motor bearing, containing a diurea thickener of the following formula (A): | 05-22-2014 |
20140116167 | CONSTRUCTION FOR FASTENING A BEARING AND A STEERING GEAR UNIT USING THIS CONSTRUCTION FOR FASTENING A BEARING - Provided is simple construction, in a mechanical apparatus such as a rack and pinion steering gear unit, for fastening a bearing that supports thrust loads to a member of the mechanical apparatus using a tapered snap ring, such that there is high rigidity against thrust loads. With the outer ring | 05-01-2014 |
20140116166 | Linear Device - A linear device is provided which can greatly reduce an amount of leakage of fine particles that are produced between a rolling element raceway and rolling elements to the outside of the device and which is therefore suitable for a semiconductor production apparatus or liquid crystal display panel production apparatus or other clean environment. In a linear device, each of a pair of seal members is formed to a shape which has a clearance of 0.025 to 0.15 mm in range with respect to a raceway member when cut along a direction perpendicular to the axial direction of the raceway member in a state attached to a moving member. Grease with a worked penetration of 175 to 250 is coated between the rolling element raceway and the rolling elements. | 05-01-2014 |
20140112609 | CAGE FOR RADIAL ROLLER BEARING - Achieved is a cage for a radial roller bearing that is made by axial draw molding, and that can suppress wear due to friction between the end sections in the axial direction and the guide surfaces of the opposing members, without the assembly direction being restricted, even when guide surfaces of opposing members are not able to support the cage over the entire area of the end surfaces in the axial direction. The cage | 04-24-2014 |
20140102219 | Abnormality Diagnosing Method for Torque Detecting Device and Electric Power Steering Device - An abnormality diagnosing method is provided for a torque detecting device and an electric power steering device is provided using the torque detecting device. Immediately after the power supply is turned on and before steering auxiliary control is started, initial diagnosis is performed to determine that each monitoring block for monitoring an abnormality of a signal processing circuit constituting a torque detecting device operates normally. The initial diagnosis determines that a monitoring block is operating normally, by inputting a normal signal and an abnormal signal to the monitoring block alternately, and finding that the monitoring block carries out normal diagnosis when it receives the normal signal and that it carries out abnormal diagnosis when it receives the abnormal signal. Once all of the monitoring blocks are determined as normal, the steering auxiliary control based on a steering torque detected by the torque detecting device is started. | 04-17-2014 |
20140091538 | SUSPENSION FOR VEHICLE - A upper arm | 04-03-2014 |
20140083236 | ENERGY ABSORBING MEMBER AND IMPACT ABSORBING STEERING APPARATUS - Construction is achieved that more completely protects the driver of a vehicle during a secondary collision by gradually increasing the impact load that is absorbed by an energy absorbing member | 03-27-2014 |
20140080611 | CROSS UNIVERSAL JOINT AND MANUFACTURING METHOD THEREOF - Structure of a cross universal joint is achieved in which the fact that an excessive torque was applied to a universal joint due to a collision accident or mishandling can be easily determined afterwards. Protrusions | 03-20-2014 |
20140077741 | ELECTRIC POWER STEERING APPARATUS | 03-20-2014 |
20140076653 | Electric Power Steering Device - An electric motor ( | 03-20-2014 |
20140053619 | STEERING APPARATUS - The invention provides a steering apparatus which includes: an inner column | 02-27-2014 |
20140041194 | TELESCOPIC SHAFT AND MANUFACTURING METHOD THEREOF - Provided is a telescopic shaft having a coated section that reduces sliding resistance, with fluctuation of the sliding resistance according to sliding position of the telescopic shaft being reduced. A female shaft | 02-13-2014 |
20140029876 | Linear Motion Guide Device - In a linear motion guide device suitably applicable to applications under high-temperature and vacuum environments where no plastic end cap is applicable, and having an end cap formed by injection molding using metal powders as a raw material, the degree of adhesion of the metal powders is improved at a thin and keen portion like the scooping portion of the end cap, thereby suppressing an abrasion and a deformation. The end cap ( | 01-30-2014 |
20140026706 | Steering Device - A steering device easily sets an absorption amount of impact energy to a predetermined magnitude at a time when a female male shaft and a male shaft undergo relative contraction upon occurrence of a vehicle collision. If the male shaft undergoes contraction by a length against the female shaft, a serrated edge on a right-end surface of the female shaft is butted against a left-end surface of an impact-energy absorption part. Then, the serrated edge of a female serration is firmly butted against a left-end surface of the impact-energy absorption part to undergo plastic deformation, whereupon resistance to collapsing increases, thereby absorbing impact energy. | 01-30-2014 |
20140002931 | PIVOT BEARING AND MAGNETIC RECORDING APPARATUS USING THE SAME | 01-02-2014 |
20130343680 | Linear Guide Device - There is provided a linear guide device which enables easy management of the amount of clearance between a side seal member and guide rail, which can reduce the amount of fine particles which escape to the outside of the side seal member. Such a linear guide device is suitable for being used in a clean room environment. The linear guide device is provided with a side seal member attached to an axial direction end part of a slider while providing a predetermined amount of clearance with a guide rail. The side seal member is formed integrally and has a thickness in the axial direction of 25 to 140 times the amount of clearance. | 12-26-2013 |
20130340562 | Strength Evaluating Method for Aluminum Die Cast Part, Aluminum Die Cast Part, and Defect Detecting Method for the Same - There is provided an aluminum die cast part strength evaluating method is provided for correctly evaluating strength of an actual aluminum die cast part. Strength of the actual aluminum die cast part will be correctly evaluated by conducting ultrasonic inspection of a predetermined range of a high stress region of an aluminum die cast part, which is found out through stress analysis beforehand, for an internal defect, and evaluating that the aluminum die cast part has a predetermined strength if the maximum internal defect area within the predetermined range is equal to or less than a predetermined value. Moreover, an actual aluminum die cast part with a predetermined strength will be evaluated correctly by: evaluating strength using the aluminum die cast part strength evaluating method and setting the maximum-possible internal defect area within the predetermined range of the high stress region to 0.8 mm | 12-26-2013 |
20130336610 | ROLLER BEARING - A tapered roller bearing ( | 12-19-2013 |
20130322802 | BALL BEARING AND HYBRID VEHICLE TRANSMISSION - A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing. | 12-05-2013 |
20130314015 | CONTROL APPARATUS FOR ELECTRIC POWER STEERING APPARATUS | 11-28-2013 |
20130311056 | CONTINUOUSLY VARIABLE TRANSMISSION DEVICE - Construction is achieved that is capable of ensuring reliability of a learned value for a position of an adjustment member | 11-21-2013 |
20130310208 | CONTINUOUSLY VARIABLE TRANSMISSION DEVICE - Construction is achieved that is capable of ensuring reliability of a learned value for a step position of a stepping motor | 11-21-2013 |
20130301974 | ROLLER THRUST BEARING - Construction of a roller thrust bearing is achieved wherein it is possible to keep a thrust race from coming apart from a cage without wear or cracking occurring in a cage element and without impact occurring between the thrust race and cage even when used in an application wherein a rotating section rotates at high speed, or when used in an application wherein relative displacement between members of a rotating section is large. The thickness of metal plate of a first cage element | 11-14-2013 |
20130301160 | PIVOT BEARING UNIT FOR HARD DISK ACTUATOR - In an HDD actuator pivot bearing unit | 11-14-2013 |
20130299269 | Electric Power Steering Apparatus - Connection terminals are provided for electrically connecting sensor terminals and through holes provided on a control substrate, and a control unit is provided with a frame of synthetic resin for holding the control substrate. The frame of synthetic resin is provided with: a connection terminal holding portion for holding one ends of the connection terminals connected to the through holes partially insert-molded and the other ends protruding outwardly from the frame of synthetic resin; and guide openings for guiding and making the sensor terminals insert therethrough so that the sensor terminals protruding from the outer circumference of the reduction gearbox extend to the position where the sensor terminals are connectable with the other ends of the connection terminals. | 11-14-2013 |
20130291817 | CAM FOLLOWER APPARATUS - Provided is a cam follower apparatus that has excellent durability, assembly characteristics and freedom of design, and together with being able to reduce the size and weight, is able to reduce the manufacturing cost. Both end sections of a support shaft | 11-07-2013 |
20130272641 | Split Retainer for a Rolling Bearing - Provides is a split-type retainer for a rolling bearing that is capable of preventing vibration, noise and damage due to collision between the end surfaces in the circumferential direction of the split section without an increase in manufacturing cost. The split section | 10-17-2013 |
20130271047 | MOTOR CONTROLLING APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING THE SAME | 10-17-2013 |
20130267365 | IN-WHEEL MOTOR - There is provided an in-wheel motor that can reduce the loss of energy. An electric vehicle driving device includes a first motor, a second motor, a speed change mechanism, a speed reducing mechanism, and a clutch device. A first planetary gear mechanism of the speed change mechanism is a single-pinion type planetary gear device. A second planetary gear mechanism of the speed change mechanism is a double-pinion type planetary gear device. The electric vehicle driving device operates so as to switch a first speed change state where the magnitudes of rotational forces of the first motor and the second motor are equal to each other and the directions of the rotational forces are opposite to each other, and a second speed change state where the rotational forces have the same magnitude and direction. | 10-10-2013 |
20130266249 | RETAINER FOR RADIAL ROLLER BEARING - A pair of rim portions | 10-10-2013 |
20130261894 | Electric Power Steering Apparatus - An electric power steering apparatus includes a first torque calculating unit for calculating a first torque command based on a steering torque detected by the steering torque detecting unit, a second torque command calculating unit for calculating a second torque command based on the wheel rotation speed, an emergency switching unit for outputting the second torque command instead of the first torque command when error of the rotation torque is detected, a wheel rotation speed error detecting unit for detecting an error of the wheel rotation speed based at least on the wheel rotation speed, the steering torque in a normal state and the motor rotation information, and an emergency command limiting unit for liming the second torque command when normal and the motor rotation information, and where error of the wheel rotation speed is detected, when the second torque command is selected by the emergency switching unit. | 10-03-2013 |
20130257337 | Electric Power Steering Apparatus - An electric motor and a control unit are juxtaposed in a speed reduction gear box. A terminal block is provided at an outer circumference of a flange proximate to a control unit of the electric motor. Terminal block surfaces of the terminal block are provided so that a plane direction faces a direction vertical to a shaft line of the electric motor. A motor side connecting terminal is held on the terminal block surface. The unit side connecting terminals provided at a position proximate to the electric motor of the control unit are arranged so as to overlap with the motor side connecting terminal on the terminal block surface to couple by a coupling portion (fixing screw). | 10-03-2013 |
20130255430 | STEERING COLUMN APPARATUS - Construction is achieved wherein upward displacement of a steering column | 10-03-2013 |
20130255420 | Ball Screw Device - A ball screw device for reducing damage to a circulating part even during a high speed operation is provided. To this end, the circulating part includes a pair of legs having a tang to scoop up a ball in a direction substantially match with a tangential direction of a spiral path, and a body to connect the pair of legs, wherein a center path diameter Rb of the ball, an internal diameter Rn of the nut, and an internal diameter Rt opposite to the tang satisfy a relationship of Rb≦Rt≦Rn. | 10-03-2013 |
20130255418 | Actuator and Method for Producing Same - In forming an actuator, a large end surface of a tapered roller of a tapered roller bearing is shot with minute particles of silicon carbide having a diameter of 0.5 to 100 μm and having an angle formed by crushing, and such a surface is scraped concavely at a diameter within a range from 0.5 to 100 μm to form a large number of concavities having a depth of equal to or greater than 1 μm at a pitch of equal to or less than 200 μm. The concavities are non-continuous and isolated from each other, and serve as a lubricant puddle. The concavities are formed by scraping and not by plastic deformation, and thus the surface is not hardened. | 10-03-2013 |
20130251291 | Constituting Component of Side Seal for Linear Guide Apparatus, and Linear Guide Apparatus - The sealing performance by a side seal is improved by changing the sealing function of the side seal for a linear guide apparatus which includes, as constituting components, a seal member, a holder plate that holds the seal member, and a cover (a scraper) depending on its application of the side seal. Plural types of the seal members ( | 09-26-2013 |
20130243355 | Side Seal for Linear Guide Apparatus and Linear Guide Apparatus - A side seal for a linear guide apparatus including a guide rail, a slider, and a plurality of rolling elements includes seal members formed of different materials, a holder plate and covers. Both seal members have recesses formed in a first face of a base and fitted with a protrusion of the holder plate. Both seal members have respective lips directed in opposite directions separated from each other. A tip of the lip of the first seal member is formed to have a shape in plane contact with the face of the guide rail. A tip of the lip of the second seal member is formed to have a shape in line contact with the face of the guide rail. | 09-19-2013 |
20130239725 | Ball Screw Device - A ball screw device even with a small lead angle and a small number of circulation rolls, includes a rotational part, which keeps unequal division of tongue portions and legs connected to the tongue portions to a minimum and ensures the strength of the tongue portions. A recirculating part of the ball screw device includes a pair of legs, each having a tongue portion for scooping up balls in a direction approximately tangential to a spiral raceway, and a main body connecting the pair of legs. First divided faces for dividing the pair of legs along a ball recirculating path, and a second divided face for dividing the main body along the ball recirculating path are also included. The second divided face is formed by an upper divided face and a lower divided face of the ball recirculating path so that the upper divided face and the lower divided face intersect with each other when viewed from a flat surface of the nut. | 09-19-2013 |
20130239400 | Method of Manufacturing Continuously Variable Transmission Variator Component and Chuck Apparatus for Manufacturing Variator Component - Provided is a method of manufacturing a variator component comprising a step of performing, on a variator component workpiece, pre-machining of a power transmission surface and spline holes while leaving machining allowance, a step of performing workpiece thermal hardening, a step of performing finish-machining of multiple spline grooves constituting the workpiece spline holes, a step of snugly abutting part of a chuck mounted on a lathe or a grinder into multiple spline grooves and clamping the workpiece coaxially with the rotational axis of the chuck, and a step of performing finish-machining of the power transmission surface of the workpiece using ball spline grooves of the workpiece clamped by the collet chuck as a machining reference. | 09-19-2013 |
20130230931 | TARGET SUBSTANCE DETECTING APPARATUS, AND TARGET SUBSTANCE DETECTING METHOD - A target substance detecting apparatus includes a photonic crystal biosensor configured to include a photonic crystal, which has a reflection surface including concave portions and convex portions formed regularly on its surface, covered by a metal film, and reflecting light irradiated to the reflection surface; an optical detecting unit configured to irradiate parallel light to the reflection surface, and to detect reflected light of the parallel light reflected on the reflection surface; and a processing unit configured to obtain a wavelength at an extreme value of the reflected light detected by the optical detecting unit, and to detect at least whether the target substance is present or not based upon a shift of the obtained wavelength at the extreme value. | 09-05-2013 |
20130228032 | Steering Device - A steering device provides a driver operation feeling that lets the driver definitely feel that a movable tilt lock gear and a fixed tilt lock gear are securely engaged. Gear noise in tilt adjustment when the movable tilt lock gear and the fixed tilt lock gear are engaged halfway is prevented. As the control force of an operating lever is rapidly decreased when a fitting protrusion is fitted to a stepped part, a click and click stop feeling occur and a definite operation feeling that the clamping is securely performed is acquired. As the fitting protrusion is integrated with the operating lever and a sliding surface configured by a groove, an inclined face and the stepped part are also formed as an outside face of the fixed tilt lock gear, the number of parts and man-hours for assembly can be reduced. | 09-05-2013 |
20130223771 | Linear Guide Bearing Device and Seal Member Used for the Same - There is provided a linear guide bearing device, and a seal member used for the same, in which the entry of foreign matter to the inside the slider and leakage of lubricant from the inside of the slider are prevented and the manufacturing costs are reduced. For this end, a linear guide bearing device | 08-29-2013 |
20130220047 | Ball Screw - A ball screw having a groove-shaped ball return passage has improved durability, ball circulation performance, and working performance. The ball screw is provided with: a threaded shaft having a spiral groove at its outer circumferential surface; a nut having a spiral groove which faces the spiral groove at its inner circumferential surface; a plurality of balls rotatably loaded in a spiral raceway constituted by the two spiral grooves; and a ball circulation groove which returns and circulates the balls from an end point to a start point of the raceway. Further, the edge portions constituted by the two side surfaces of the ball circulation groove and the surfaces which continue from the side surfaces and extend in the axial direction are formed to be rounded. | 08-29-2013 |
20130218403 | POWER STATE DIAGNOSIS METHOD AND APPARATUS | 08-22-2013 |
20130217529 | HUB BEARING, SPEED REDUCTION MECHANISM, AND IN-WHEEL MOTOR - There are provided a hub bearing, a speed reduction mechanism, and an in-wheel motor, including an inner race portion which is fixed to a support mechanism, an outer race portion which is connected to a wheel, and a rolling element which is disposed between the inner race portion and the outer race portion, and the outer race portion includes an outer race member, a wheel flange, and a fixation mechanism. The end surface of the wheel flange away from the outer race member in a direction parallel to a rotation shaft extends to the rotation shaft in relation to the inner race portion in the radial direction of the rotation shaft. Further, the inner race portion includes a first inner race member which is fixed to the support mechanism, a second inner race member which is inserted into the outer peripheral surface of the first inner race member, and a locking nut which is disposed on the outer peripheral surface of the first inner race member so as to be near the wheel in relation to the second inner race member and is threaded into the first inner race member, and the end surface of the locking nut away from the wheel in a direction parallel to the rotation shaft is positioned near the wheel in relation to the contact surface of the outer race member against the wheel flange. | 08-22-2013 |
20130216160 | Side Seal for Linear Guide Apparatus, and Linear Guide Apparatus - According to the present invention, two kinds of side seals ( | 08-22-2013 |
20130213174 | STEERING APPARATUS - The present invention provides a steering apparatus having simple construction, and good left and right balance of the clamping force, such that the clamping force does not fluctuate depending on the forward-backward position of the steering wheel | 08-22-2013 |
20130213173 | STEERING APPARATUS - Construction is achieved wherein performing design for sufficiently maintaining the collapse stroke is simple regardless of whether or not there is a key lock cylinder, and support rigidity of the steering column | 08-22-2013 |
20130209019 | SPLIT BEARING RING AND ITS MANUFACTURING METHOD - A split bearing ring according to the invention includes two or more split portions into which the split bearing ring is divided with respect to a circumferential direction. Surfaces of the split portions other than circumferential end faces of the spit portions have hardness of HRC 59 or higher, the surfaces of the split portions other than the circumferential end faces are quenched and tempered, and the surfaces of the split portions other than the circumferential end faces have a prior austenite grain size of No. 6 or above. The split portions are formed by applying a load to a bearing ring such that stress generated on one end side of the bearing ring with respect to an axial direction is larger than stress generated on the other end side of the bearing ring with respect to the axial direction. | 08-15-2013 |
20130209016 | ROLLING BEARING UNIT WITH ENCODER FOR SUPPORTING WHEEL - Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section | 08-15-2013 |
20130205933 | STEERING APPARATUS - Construction is achieved that is capable of maintaining the holding force by which a support bracket | 08-15-2013 |
20130205593 | MANUFACTURING METHOD FOR BEARING OUTER RING - Provided is a manufacturing method of an outer ring of a back-to-back arrangement double-row angular ball bearing from a raw material comprising an upsetting, a backward extrusion process, a punching, a rolling and a finishing, wherein an outer diameter of a first intermediate material produced by the upsetting is equal to or smaller than an inside diameter of an inner periphery large diameter portion of the inner circumference of a die used in the backward extrusion process and larger than an inside diameter of an inner periphery small portion of the die, and in a condition with the first intermediate material sitting on the inner periphery inclined portion of the die, the intermediate material is pushed toward a base of the die by a punch, to thereby the middle metal material with the highest cleanliness of the raw material is exposed to two outer ring raceways of the outer ring. | 08-15-2013 |
20130199866 | STEERING APPARATUS FOR AN AUTOMOBILE - Construction is achieved wherein the front-end section of an outer column | 08-08-2013 |
20130199328 | STEERING APPARATUS FOR AN AUTOMOBILE - Construction is achieved wherein the front-end section of an outer column | 08-08-2013 |
20130195386 | Linear Guide Apparatus - A linear guide apparatus maintaining a high dust-proof performance over an extended period of time and includes side seal units attached to end parts of a slider in the axial direction. Each side seal unit is provided with: a first seal member, at the slider, arranged in the axial direction of the slider; a second seal member at the outside of the slider in the axial direction; and a lubricating member held between the first and second seal members. The first seal member has first lip parts sliding against the rolling element rolling grooves of the guide rail, while the second seal member has second lip parts sliding against the rolling element rolling grooves. The lubricating member has a first oil-containing member for supplying lubricant to the rolling element rolling grooves. The first and second lip parts are arranged not to come into contact with the first oil-containing member. | 08-01-2013 |
20130188901 | THRUST BEARING FOR HYDRAULIC CONTINUOULSY VARIABLE TRANSMISSION - The present invention provides a thrust bearing that is incorporated in a hydraulic continuously variable transmission, and includes: an inner ring that comes into contact with a piston of a piston chamber of a variable capacity pump; an outer ring that is fixed to a swash plate; and a plurality of rolling elements that are held between the inner ring and the outer ring via a cage, wherein: a groove bottom thickness (Ti) of the inner ring is 40% or more of a ball diameter; a groove bottom thickness (Te) of the outer ring is 15% or more of the ball diameter; and a ratio of (Ti/Te) is is more than 1 and less than 3. Thereby, damage of the inner ring is prevented, and thus a thrust bearing for a hydraulic continuously variable transmission of a long service life is provided. | 07-25-2013 |
20130187574 | POWER STATE DIAGNOSIS METHOD AND APPARATUS | 07-25-2013 |
20130186153 | STEERING DEVICE - In a steering device having a steering lock device and a telescopic clamp device, the strength of a column in a key-locked state and the force of telescopic clamping are secured. A flange section and ribs are formed between a through hole which a lock pin comes in and leaves and a slit for reducing the inner circumferential diameter of an outer column so as to increase the strength of the outer column. Hence, both the strength of the outer column against the bending moment applied to the lock pin in a key-locked state and the strength of the outer column against telescopic clamping effected by reducing the inner peripheral diameter of the outer column can be secured. | 07-25-2013 |
20130182986 | Rotation Support Device for Pinion Shaft - A rotation support device for a pinion shaft is configured such that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway and the diameter Bd of the balls (Ro/Bd) is regulated within the range 0.5207-18-2013 | |
20130180297 | STEERING DEVICE - In a steering device having a steering lock device, stress applied to a base portion of a flange section is reduced. Relief portions have round corners formed where the relief portions meet the outer periphery of the outer column, respectively. With the relief portions concave by β | 07-18-2013 |
20130175287 | TAPERED ROLLER SUPPLY SYSTEM, TAPERED ROLLER BEARING FABRICATING SYSTEM AND TAPERED ROLLER SUPPLY METHOD - A tapered roller supply system, a tapered roller bearing fabricating system and a tapered roller supply method are provided which enable tapered rollers to be loaded properly in pockets of a cage. | 07-11-2013 |
20130174685 | Steering Device - In a steering device, when a telescopic position of a steering wheel is disposed at a vicinity of an adjustment end on a front side of a vehicle body, if a large force is applied erroneously to the steering wheel toward the front side of the vehicle body, rear ends of telescopic position adjusting long grooves are brought into contact with a fastening rod and push the fastening rod to the front side of the vehicle body. An engaging protrusion pushes an inner column to the front side of the vehicle body. A large force to the front side of the vehicle body, which is applied to the steering wheel is supported by the vehicle body via the inner column, and a force which is applied to a vehicle body attaching bracket can be reduced. This prevents the vehicle body attaching bracket from becoming detached from the vehicle body. | 07-11-2013 |
20130170780 | Roller Bearing and Method for Manufacturing the Same - Spherical particles having diameters of 100 μm or less are projected on a surface of a tapered roller so as to form recesses and protrusions, and abrasive particles are then projected thereon so as to remove the protrusions. The abrasive particles result from adhering 5 mass % diamond grains with an average diameter of 10 μm on surfaces of 1 mm-diameter rubber particles. As a result, multiple recesses having circular openings of 50 μm or less are formed on the surface of the tapered roller at intervals of 200 μm or less. These recesses become moderate oil pools, heightening the oil film formation capability of the roller surface, and thus torque of the tapered roller bearing may be decreased. | 07-04-2013 |
20130170776 | ROLLER BEARING FOR HARD DISK SWING ARM - There is provided a roller bearing for a hard disk swing arm, which is configured to improve the response characteristics of the swing arm by reducing a change in torque hysteresis of a swing arm retaining force with respect to time passage in a HDD drive state. The roller bearing ( | 07-04-2013 |
20130167611 | WHEEL SUPPORT HUB UNIT, BEARING RING MEMBER FOR WHEEL SUPPORT HUB UNIT, AND METHOD OF MANUFACTURING THE SAME - A raceway member ( | 07-04-2013 |
20130165015 | BEARING UNIT, YO-YO USING THE SAME, BALL BEARING UNIT AND YO-YO USING THE SAME - An object of the present invention is to provide a yo-yo with a high rotary precision, capable of easily and reliably centering even in assembling or disassembling the yo-yo, using a bearing unit having a ball bearing with a simple configuration and high centering precision. A bearing unit ( | 06-27-2013 |
20130160595 | STEERING COLUMN APPARATUS - Construction is achieved capable of stably maintaining an inner column | 06-27-2013 |