| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 180600480 |
Independently operable drive motors
| 65 |
| 180600700 |
Endless flexible track
| 23 |
| 180600240 |
Combined with manual steering
| 20 |
| 180600440 |
Auxiliary steering motor
| 6 |
| 180600620 |
Combined | 2 |
| 20100155154 | PEOPLE MOVING VEHICLE WITH REDUCED TURN RADIUS HAVING OMNI-DIRECTIONAL CAB - A vehicle with a omni-directional cab having a circular frame revolvably coupled to a chassis having an axle, wheels and passenger seats. Two independent drive wheels located on an axis through the center of the cab are mounted at the same distance from a central vertical axis through the cab. Each wheel is powered independently and can rotate at variable speeds in either direction. The cab is capable of movement in any direction by rotating the axis of the drive wheels to a position which is perpendicular to the desired direction of travel. The cab can spin about its vertical axis such that the axis of the drive wheels can be oriented at any direction without changing the original footprint of the space that the frame occupies over the ground. Thus, the combined cab/chassis assembly can rotate about the vertical midpoint of the chassis axle. | 06-24-2010 |
| 20140196961 | CRAWLER WORK VEHICLE - An occurrence of steering clutch slippage is reliably determined in order to protect the steering clutch. A crawler work vehicle includes left and right steering clutches, left and right steering brakes, a rotation speed detecting difference device, a clutch hydraulic pressure obtaining device, and a clutch protecting device. The rotation speed difference detecting device detects a rotation speed difference between the input and output of each of the steering clutches. The clutch hydraulic pressure obtaining device obtains a clutch hydraulic pressure supplied to each steering clutch. The clutch protecting device refers to the rotation speed difference and the clutch hydraulic pressure, computes a steering clutch heat rate, and compares the computed heat rate with a preset first threshold to execute a steering clutch protection process. | 07-17-2014 |
| 180600580 |
Controlled from rotatably mounted superstructure | 2 |
| 20150008051 | POWERED MOBILITY DEVICE - A mobility device includes at least two drive wheels mounted on a shaft; a drive controller drivingly coupled to the shaft; a seat mounted to a tilt mechanism such that the seat is able to tilt in a forward, backward, left and right directions as a result of the user shifting their body weight in either of those directions; a weight displacement sensor connectable to the tilt mechanism and the drive controller such that upon sensing a weight displacement of a user in a particular direction the weight displacement sensor causes the drive controller to impart drive to the drive wheels to move the mobility device in the direction of the sensed displaced weight of the user so that the mobility device is able to be driven in a forward and backward direction and steered in a left or right direction. The mobility device further includes a tilt lock to lock the tilt mechanism such that the seat is unable to be tilted; and a hand controller selectively engageable with the tilt mechanism and the weight displacement sensor such that the hand controller can disengage left and right movement of the tilt mechanism so that the hand controller when moved left or right causes the weight displacement sensor to cause the drive controller to steer the mobility device in a desired direction. | 01-08-2015 |
| 20120097460 | HYDRAULICALLY-POWERED WORKING VEHICLE - A hydraulically powered working vehicle includes a turning section provided at an upper side of a travel unit capable of turning, and hydraulic circuits for the working vehicle. The hydraulic circuit for the working vehicle has a first actuator group including a one side traveling motor, a first variable capacity pump for driving the first actuator group, a second actuator group including an other side traveling motor and a turning motor, and a second variable capacity pump for driving the second actuator group. The second variable capacity pump is set so that a maximum value for discharge capacity per unit time becomes large compared to that of the first variable capacity pump. | 04-26-2012 |
| 180600660 |
Reversing drive to traction element | 1 |
| 20110297460 | DIRECT POWER REVERSING DRIVE AXLE - A drive axle assembly includes a drive axle configured to rotate with a driving torque, a first clutch pack assembly located at an end of the drive axle, and a second clutch pack assembly located at an opposite end of the drive axle. A first drive wheel assembly is operatively connected to the first clutch pack assembly, wherein the first clutch pack assembly is configured to convert the driving torque of the drive axle to a first driving torque of the first drive wheel. A second drive wheel assembly is operatively connected to the second clutch pack assembly, wherein the second clutch pack assembly is configured to convert the driving torque of the drive axle to a second driving torque of the second drive wheel. | 12-08-2011 |
| 180600640 |
Swinging traction frame responsive to differential drive | 1 |
| 20110272198 | SWATHER TRACTOR WITH FRAME SUSPENSION - A swather tractor has a frame defined by a main tractor frame carrying the cab, engine and drive system, rear axle with castor wheels and a transverse front frame assembly mounted at a front of the main frame. The front rigid frame assembly carries the header and comprises a cross member and a pair of upstanding legs each carrying a front ground wheel hydraulically driven so that steering is controlled by the rate of forward movement of the front wheels. In order to provide improved suspension, the main frame is connected to the front frame assembly by a coupling which allows up and down suspension movement of the main frame relative to the front frame assembly. | 11-10-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20090038861 | Omni Direction Vehicle - An omni direction vehicle with a frame having a round surface about its perimeter with no apparatus mounted on the frame extending beyond the perimeter. Two independent drive wheels located on an axis through the center of the frame are mounted at the same distance from a central vertical axis through the frame. Each wheel is powered independently of the other and can rotate at variable speeds in either direction. The vehicle is capable of movement in any direction by rotating the axis of the drive wheels to a position which is perpendicular to the desired direction of travel. The vehicle can spin about its vertical axis such that the axis of the drive wheels can be oriented at any direction without changing the original footprint of the space that the frame occupies over the ground. Thus, the vehicle requires a zero turning radius and requires only the space it occupies to change its forward orientation. | 02-12-2009 |
| 20090178862 | Driving and Steering of Motor Vehicles - An arrangement and a method are disclosed for driving and steering an engine driven vehicle of the type m which left and right hand wheels | 07-16-2009 |
| 20100300776 | Simplified Cooling Circuit For Powertrain Braking System - An efficient lubrication system for wet plate brake assemblies includes a flow control system that passes lubricant for cooling and lubrication through interdigitated wet brake plates when the plates are engaged. When the plates are disengaged, the wet plate assembly is controlled to limit its displacement by means of a pin and spring such that a gap is provided around the brake plates to provide a preferential path for lubricant, thus minimizing parasitic losses. | 12-02-2010 |
| 20110067934 | INTEGRATED HYDROSTATIC TRANSMISSION FOR LEFT AND RIGHT WHEEL DRIVE - A hydrostatic transmission mountable to a frame of a vehicle for driving a left side or right side drive wheel. A motor portion of the transmission can extend outwardly from the frame and a pump portion can extend upwardly from the frame. The motor portion can be configured to be at least partially received within a wheel for direct mounting of the wheel to an output shaft of the motor. The pump portion can include an input shaft extending from a lower side thereof for connection to a prime mover, such as an internal combustion engine. | 03-24-2011 |
| 20110100732 | TRANSMISSION DEVICE FOR A VEHICLE, COMPRISING A VARIATOR, A PLANETARY GEAR UNIT AND A MANUAL TRANSMISSION UNIT - A transmission device ( | 05-05-2011 |
| 20110209929 | APPARATUS AND METHODS FOR CONTROL OF A VEHICLE - Method for controlling a vehicle that includes a support, at least one wheel, a platform coupled to the at least one wheel, a coupling structure having a support portion coupled to the support and a platform portion coupled to the platform that allows the support portion to move or slide fore and aft with respect to the platform portion, an actuator coupled to the coupling structure to control the position of the support portion relative to the platform portion, a drive coupled to the at least one wheel to deliver power to the at least one wheel to propel the vehicle and maintain the platform level, and a controller coupled to the drive to control the drive and coupled to the actuator to control the actuator. | 09-01-2011 |
| 20120006602 | SPHERICAL MOBILITY MECHANISM - An omni directional mobility device made of a spherical device that is capable of omni directional movement. An omni directional vehicle including a vehicle and at least one omni directional mobility device made of a spherical device for enabling omni directional movement. | 01-12-2012 |
| 20120111648 | STEERABLE DRIVE MECHANISM AND OMNIDIRECTIONAL MOVING VEHICLE - A drive mechanism includes a rotatable steering unit, a wheel supported by the steering unit, a drive member rotating about an axis extending along a center axis of the steering unit, an output shaft located at an offset position from the center axis of the steering unit and transmitting rotational force of the drive member to the wheel. The drive member includes a first drive unit driven in a forward rotation direction and a second drive unit driven in a reverse rotation direction and located coaxially with the first drive unit. The output shaft includes a first output unit to which driving force is transmitted from the first drive unit, and a second output unit to which driving force is transmitted from a conversion unit for converting rotation of the second drive unit, is restricted by both the output units, and transmits rotational force obtained from the output units to the wheel. | 05-10-2012 |
| 20120267175 | THREE-WHEEL PEDAL-STYLE WHEELCHAIR - A three-wheel pedal-style wheelchair which includes a roller at a side, close to the ground, of the wheelchair, wherein the roller prevents the wheelchair from turning over, a steering wheel arranged at a side of the wheelchair, and two front wheels respectively arranged at two opposite sides of the wheelchair, wherein the two front wheels comprises a driving wheel led to rotate forward or backward by a user stepping and a loose wheel, wherein when the wheelchair turns to a direction in a small radius, the steering wheel is considerably rotated to a direction and the driving wheel is rotated forward, wherein when the wheelchair turns to another direction, the steering wheel is considerably rotated to a direction and the driving wheel is rotated backward. Accordingly, the wheelchair is easily controlled to have a small turn, like whirling in one spot, to move and to turn safely. | 10-25-2012 |
| 20130037331 | MOVABLE SYSTEM - A displaceable system including at least one set of at least two wheels arranged in pairs for movement in a plane, said set being disposed on at least one wheel axle parallel to the plane. A single electric drive motor, a differential having variable torque distribution, and an electric servomotor are provided on the wheel axle for both wheels of a set. The electrical servomotor acts on the differential such that the torque generated by the single electric drive motor is distributed within the wheel axle individually to the wheels. | 02-14-2013 |
| 20130133959 | OMNIDIRECTIONAL VEHICLE - An omnidirectional vehicle | 05-30-2013 |
| 20140041952 | ZERO-TURN LAWNMOWER WITH IMPROVED CONTROL HANDLES - A lawnmower includes a chassis; a seat supported on the chassis for permitting an operator to sit or stand on the chassis; a pair of drive wheels for supporting the chassis above a ground surface; an engine and a pair of transmissions for driving the drive wheels; and a pair of manually-moveable handle assemblies for controlling the transmissions. Each handle assembly includes a substantially vertically-extending control handle, wherein the control handles are mounted outboard of opposite sides of the seat so as not to block the operator's ingress or egress from the seat. | 02-13-2014 |
| 20140110182 | LAWN CARE VEHICLE ADJUSTABLE STEERING ASSEMBLY - A riding lawn care vehicle may include a frame and a steering assembly. Wheels of the riding lawn care vehicle may be attachable to the frame. The steering assembly may be operably coupled to at least two drive wheels of the riding lawn care vehicle to facilitate turning of the riding lawn care vehicle based on drive speed control of the at least two drive wheels responsive to positioning of steering levers of the steering assembly. The steering assembly may include a vertical adjustment assembly configured to enable telescopic adjustment of a height of a corresponding one of the steering levers. | 04-24-2014 |
| 20140151136 | SINGLE PEDAL PROPULSION SYSTEM FOR STRAIGHT TRAVEL OF WORK VEHICLE - A work vehicle is disclosed with a propulsion system that is selectively operable in a first, turning mode or a second, straight mode. The vehicle includes a first traction device, a second traction device, a first steering input, and a second steering input. In the first, turning mode, an operator is able to steer the vehicle left, right, or straight by independently operating the first and second traction devices via the first and second steering inputs. In the second, straight mode, the operator is able to steer the vehicle straight by operating both the first and second fraction devices together via one of the first and second steering inputs. | 06-05-2014 |
| 20140231154 | AUTOMATED CLEAN MACHINE WITH A STEERING MECHANISM - The present invention provides an automated clean machine with a steering mechanism wherein the steering mechanism of the automated clean machine which gets held up restricts one of conjoint wheels not to synchronously rotate in contrast to the other one during a steering process, minimizing wheel wear, and resuming the wheels' synchronous running in next normal movement. | 08-21-2014 |
| 20140262559 | SELF-PROPELLED WINDROWER TAILWHEEL NON-ZERO CASTER FOR STABILITY - A non-zero caster angle for the rear axle swivel caster wheels on a self-propelled agricultural harvesting machine wherein steering is accomplished by varying speed and/or direction of forward drive wheels. The non-zero caster angle may be fixed or an adjuster mechanism may be provided to allow adjustment within a range of caster angles. The adjuster mechanism incorporates a fixed portion connected to the tractor frame and a pair of rotating portions, one connected to each caster wheel which allows rotation of the caster axis in a plane parallel to the machine longitudinal axis. Also disclosed is an actuator mechanism for providing powered adjustment of the caster angle, even including a control system for active caster angle adjustment. | 09-18-2014 |
| 20140353051 | INVERTED PENDULUM TYPE VEHICLE - In an inverted pendulum type vehicle no excessive load is exerted on a sub-wheel even in the case where some downward load is exerted on a sub-wheel arm. The inverted pendulum type vehicle includes a main wheel capable of moving forward, rearward, to the left and to the right with a vehicle body frame supported by the main wheel. The inverted pendulum type vehicle further includes the sub-wheel arm turnably supported on the vehicle body frame with the sub-wheel being supported by the sub-wheel arm and being grounded. The sub-wheel is supported through a deformable biasing device, and is biased into a predetermined position in relation to the sub-wheel arm. When a downward load is exerted on the sub-wheel arm, the biasing device deforms, whereby at least part of the sub-wheel arm is grounded. | 12-04-2014 |
| 20150008050 | PERSONAL MOBILITY VEHICLE - A personal mobility vehicle comprising a platform ( | 01-08-2015 |
| 20150129326 | INVERTED PENDULUM CONTROL TYPE MOVING BODY - An inverted pendulum control type moving body is provided with: a first driving portion that moves a host moving body at least in a forward/backward direction; a supporting portion that supports the inverted pendulum control type moving body so that it stands independently in a state of being in contact with the ground; an operation portion that switches between the ground contact state and a ground separation state of the supporting portion; and a control portion that, when the operation portion switches the state of the supporting portion from the ground contact state to the ground separation state, controls operation of the first driving portion so that a forward/backward direction tilt angle of the inverted pendulum control type moving body approximates a target tilt angle in the ground contact state. | 05-14-2015 |
| 20150321715 | Three Dimensional Flywheel Vehicle - The invention proposes a three dimensional flywheel vehicle, comprising multiple spherical shells, including outer spherical shell, middle spherical shell and inner spherical shell, wherein each of spherical shell is 3D flywheel. At least one casting/frame is connected to the three spherical shells. The plurality of actuators comprises first actuator, second actuator and third actuator for actuating the outer shell, the middle shell and the inner shell, respectively. The first actuator, the second actuator and the third actuator are connected to one of the at least one casting/frame or one of the three spherical shells. | 11-12-2015 |
