The invention relates to a device for actuating a clutch-controlled transfer case having a two-stage intermediate gearing and a clutch-controlled transfer case that has a two-stage intermediate gearing and that is equipped with such a device. The device comprises: a rotatably driven selector shaft, a drive for rotating the selector shaft, a clutch cam disk, which can be rotated about a clutch cam disk axis by means of the selector shaft, and at least one scissor lever,
wherein: one end (06) of at least one scissor lever is guided in a gate provided on the clutch cam disk, the gate has a curved path for each scissor lever, in which curved path the end of the scissor lever associated with the curved path is guided, the curved path winds around the clutch cam disk axis by at least 360, the curved path has at least one helical segment having a continuously increasing or decreasing distance from the clutch cam disk axis, along which segment one end of a scissor lever guided therein experiences a continuously increasing or decreasing change in deflection with respect to the clutch cam disk axis during a rotation of the clutch cam disk with increasing angle of rotation, and the clutch cam disk is disposed in such a way that the clutch cam disk can be rotated with respect to the selector shaft between two stops by an angle-of-rotation range such that, by means of rotation of the selector shaft within the angle-of-rotation range situated between said stops, shifting back and forth between the shifting stages of the intermediate gearing occurs, and, by means of rotation of the selector shaft beyond the angle-of-rotation range, the end of the at least one scissor lever experiences a deflection for actuating the clutch while a selected shifting stage is maintained.

A transmission actuator has gear steps for forming gears and a selector shaft supported rotatably for shifting gears and supported axially movably for selecting gears. The actuator has a gate with a fixed first gate part and an axially movable and rotatable second gate part, the one gate part having slots and lands alternating in a direction and the other gate part having at least one element which can interact with one of the lands at a time and is movable into one of the slots at a time. The element is moved in a prescribed direction past the lands and slots in a selecting motion and is moved into one of the slots in a shifting motion. When there is a collision between element and land during a shifting motion the movable gate part can be moved further in the prescribed direction of the selecting motion by an insertion chamfer and when there is a the movable gate part is not movable contrary to the prescribed direction of the selecting motion, but the shifting motion is stopped.

A transmission having a first input shaft, a second input shaft, an output shaft, a first clutch, and a second clutch, wherein each one of the input shafts in connectible to the crankshaft of a drive motor by one of the clutches, wherein each one of the input shafts is connectible to the output shaft by means of gearwheel pairs to transmit torque, wherein a respective actuatable selector fork is provided to connect respective groups of two gearwheel pairs to the input shaft to transmit torque, wherein every gearwheel pair is assigned a transmission ratio, wherein a number of transmission ratios that are gradational relative to one another is provided, wherein the two transmission ratios of a group of gearwheel pairs are a first transmission ratio (N) and the one after the next (N+2), with N an integer number, in particular N=1, 2, 3, 4 or 5.

A number of variations may include a product that may include a motor, and may include a gear train driven by the motor. A shift mechanism may be engaged with the gear train. A valve may be engaged with the gear train. Selective rotation of the motor may simultaneously move the shift mechanism between a number of shift positions corresponding to operational modes of the product and may move the valve between a number of valve positions that may correspond to open or closed states of the valve.

The invention relates to a cam mechanism for actuating a selector shaft, in particular for a single-motor gearshift actuation device, in particular to carry out a selecting movement of the selector shaft, comprising a cylindrical outer body having an inner circumferential surface and a cam track disposed on the inner circumferential surface and having an endless periodicity in a circumferential direction with at least one highest point and at least one lowest point, an inner body having at least one sliding guide extending in a direction perpendicular to the circumferential direction, at least one guide element disposed in the cam track and in the sliding guide, and a transmission element in operative connection with the at least one guide element and suitable for transmitting a movement of the guide element in a direction perpendicular to the circumferential direction to a selector shaft.

An electric work vehicle includes a housing, a motor to drive to a wheel, the motor being supported by the housing, a gearing including a plurality of gears, and a locking assembly including a pawl. The motor is connected to the gearing to drive the wheel. The locking assembly is operable to lock an outermost gear of the plurality of gears in a left-right direction of the electric work vehicle. The outermost gear includes a first diameter portion and a second diameter portion that is larger than the first diameter portion. The first diameter portion is located outside of the second diameter portion in the left-right direction of the electric work vehicle. The pawl is operable to engage with the first diameter portion to lock the outermost gear from rotating.

The disclosure relates to a bicycle transmission, comprising a transmission input and a transmission output, each associated with a first axis, and a second axis offset from the first axis. The bicycle transmission comprises a parallel transmission providing a parallel transmission stage between a parallel transmission input associated with the first axis and a parallel transmission output associated with the second axis. The bicycle transmission further comprises a planetary transmission associated with the second axis.

A drive includes a transmission driven by an electric motor. A drive shaft of the transmission has multiple eccentric regions with differing widths in the axial direction, in which the high points thereof are offset relative to one another in the circumferential direction. The respective eccentric region is radially surrounded by a respective cam disk region, e.g., of a housing part of the transmission. Respective rollers are accommodated in respective recesses of a cage and arranged with a radial degree of freedom. The cage is rotationally fixed to the output shaft of the transmission. The output shaft along with the cage is rotatably mounted both relative to the cam disk regions and relative to the drive shaft. During operation, the respective rollers are made to roll and/or slide on the respective cam disk region by the respective eccentric region. The eccentric regions are arranged behind one another in the axial direction such that the dynamic imbalance is minimized and/or eliminated.

A gear shift actuator includes a linear drive assembly having a supported rotary member that is axially unmovable, an electric motor for rotating the rotary member, and a driven component engaged by the rotary member to transmit rotary movement into a linear axial movement of the driven component to drive a shift fork between a neutral and a first gear engaged position. The assembly includes wherein the rotary member has a hollow cylindrical sleeve having a first cam follower and the driven component has a first barrel cam that receives the cam follower and is supported in the sleeve by a central rod to be slidably axially moveable but locked against rotational movements. The supported central rod is also axially moveable but locked against rotational movements and carries a second end stop at a distance to the first barrel cam and is configured to be linked to a shift fork.

A system and method for an actuation assembly for a transmission. The actuation assembly, in one example, includes a first cam device that is idly coupled to a support shaft and a second cam device idly coupled to the support shaft. The actuation assembly further includes a first one-way clutch which is coupled to the first cam device and an idler gear that is rotationally coupled to an actuator and a second one-way clutch that is coupled to the second cam device and the idler gear that is rotationally coupled to the actuator.