A positive drive differential assembly including a differential with an input pinion configured to operably engage with a drive shaft so as to permit the drive shaft to rotate the pinion. A bi-directional overrunning clutch assembly is configured to transmit torque between the pinion and two drive axle segments. A pinion disconnect assembly is provided for controlling transmission of rotation to the pinion and including a rotary coupler. A linear actuator is connected to the rotary coupler and configured to translate the rotary coupler between connected and disconnected positions.

A transaxle according to the present application may include: a transaxle case; an input member supported within the transaxle case; a gear drivingly connected to the input member within the transaxle case; an output member which is supported within the transaxle case and arranged at the inner peripheral side of the gear concentrically with the gear; a cage with a roller as a bidirectional overrunning clutch interposed between the inner periphery of the gear and the outer periphery of the output member within the transaxle case; and a drag mechanism provided within the transaxle case to apply rotational resistance to the cage to make the bidirectional overrunning clutch be engaged. The cage has a first end and a second end, which oppose each other in an axial direction of the output member. The first end of the cage is close to a first bearing which pivotally supports the output member to the transaxle case. The drag mechanism has a rotation member which is locked to the cage at the first end of the cage so as to be relatively non-rotatable, and a spring member for applying the rotational resistance to the rotation member.

A vehicle includes a drive source, driving wheels driven by a driving force output from the drive source, and a clutch disposed between the drive source and the driving wheels. The clutch is switchable to an arbitrary fastening position between a connection state enabling transmission of the driving force between the drive source and the driving wheels, and a disconnection state disconnecting the transmission. A clutch actuator applies a fastening load to the clutch and provides a torque transmission capacity corresponding to the fastening load to the clutch. A controller controls operation of the drive source and operation of the clutch actuator. The controller includes a clutch temperature estimation circuit estimating the temperature of the clutch, and a driving force adjustment circuit performing driving force adjustment control to adjust the driving force transmitted to the downstream side of the clutch based on the estimated temperature of the clutch.

A transmission for a wheeled vehicle has a drive member, a rotatable driven member in permanent engagement with the drive member, a wheel drive shaft and, disposed between the wheel drive shaft and the driven member, a clutch mechanism. A part of the clutch mechanism which, in the deactivated state of the clutch mechanism, is disposed in a position close to the driven member, is, in the position, limited in its axial movement in the direction of a separation from the driven member in the reverse drive state of the driven member.

A transmission for a wheeled vehicle has a drive member, a rotatable driven member in permanent engagement with the drive member, a wheel drive shaft and, disposed between the wheel drive shaft and the driven member, a clutch mechanism. A part of the clutch mechanism which, in the deactivated state of the clutch mechanism, is disposed in a position close to the driven member, is, in the position, limited in its axial movement in the direction of a separation from the driven member in the reverse drive state of the driven member.

The present invention provides a clutch and a work machine having same. The clutch comprises an input member for receiving a driving force and rotating, an output member for outputting rotational motion, and at least one transmission member. The input member has at least one radially extending protrusion. The output member has at least one transmission engagement part. The transmission member is movable between a first position of engagement with the transmission engagement part and a second position of disengagement, being located in a path of rotation of the protrusion, and able to abut the protrusion and be driven to move to the first position. Displacement of the transmission member between the first position and second position has a radial component. According to the technical solution of the present invention, the function of automatically switching between transmission states according to the operating state of a prime mover can be achieved. The fact that displacement of the transmission member comprises a radial component helps to reduce the axial thickness of the clutch, so that the structure thereof is more compact.

A transmission device with clutch and differential functions, including a box-body part, is disclosed. The box-body part includes a clutch for use with an output shaft or shaft segments. The clutch is configured to drive the output shaft or shaft segments in the box-body part to rotate synchronously in one direction in the box-body part with the output shaft or shaft segments as axes. The clutch can be activated in the closed box-body part. In the closed box-body part, the clutch can be activated so that the output shaft or shaft segments freely switch between synchronous rotation in one direction and free rotation. The transmission device can automatically switch work modes, can realize a differential turning function, has a simple and compact structure, and can operate smoothly in each operating mode.

A transmission device with clutch and differential functions, including a box-body part, is disclosed. The box-body part includes a clutch for use with an output shaft or shaft segments. The clutch is configured to drive the output shaft or shaft segments in the box-body part to rotate synchronously in one direction in the box-body part with the output shaft or shaft segments as axes. The clutch can be activated in the closed box-body part. In the closed box-body part, the clutch can be activated so that the output shaft or shaft segments freely switch between synchronous rotation in one direction and free rotation. The transmission device can automatically switch work modes, can realize a differential turning function, has a simple and compact structure, and can operate smoothly in each operating mode.

A transmission device with clutch and differential functions, including a box-body part, is disclosed. The box-body part includes a clutch for use with an output shaft or shaft segments. The clutch is configured to drive the output shaft or shaft segments in the box-body part to rotate synchronously in one direction in the box-body part with the output shaft or shaft segments as axes. The clutch can be activated in the closed box-body part. In the closed box-body part, the clutch can be activated so that the output shaft or shaft segments freely switch between synchronous rotation in one direction and free rotation. The transmission device can automatically switch work modes, can realize a differential turning function, has a simple and compact structure, and can operate smoothly in each operating mode.

A transmission device with clutch and differential functions, including a box-body part, is disclosed. The box-body part includes a clutch for use with an output shaft or shaft segments. The clutch is configured to drive the output shaft or shaft segments in the box-body part to rotate synchronously in one direction in the box-body part with the output shaft or shaft segments as axes. The clutch can be activated in the closed box-body part. In the closed box-body part, the clutch can be activated so that the output shaft or shaft segments freely switch between synchronous rotation in one direction and free rotation. The transmission device can automatically switch work modes, can realize a differential turning function, has a simple and compact structure, and can operate smoothly in each operating mode.