A roller position control mechanism including a steering element, positioned inside the bearing of each roller and provided with a skew shaft and a steering shaft defining an angle therebetween. A spider element fixes the steering element to a longitudinal shaft of the CVT and a control ring element interconnects the steering elements of the various rollers. Movement of the control ring element with respect to the spider element translates to a tilting movement of the rollers, thanks to the angle between the skew and steering shafts.

There is provided a motorcycle. A crankshaft extends in a width direction of the motorcycle. An engine case pivotally supports the crankshaft. A counter shaft is arranged in parallel with the crankshaft. A clutch mechanism is arranged at one end of the counter shaft and configured to transmit and disconnect rotation of the crankshaft to and from the counter shaft. A clutch actuator performs a disconnection/connection operation of the clutch mechanism. A shift mechanism is arranged below the counter shaft and configured to shift and transmit the rotation of the crankshaft to a driving wheel. A shift actuator performs a shift operation of the shift mechanism. A generator is arranged at one end of the crankshaft. The clutch actuator and the shift actuator are arranged around a cover member mounted to the engine case and accommodating therein the clutch mechanism or the generator.

A friction drive transmission includes a drive pulley having an engaging face, a tip plate that supports the drive pulley and is configured to pivot about a pivot axis that is parallel to an axis of rotation of the engaging face of the drive pulley, and a friction ring that drives an axle. The friction ring may contact the engaging face of the drive pulley and may be moveable relative to the engaging face of the drive pulley to transition between forward rotation and reverse rotation. When the friction ring moves into a reverse rotation position for reverse rotation of the axle, the tip plate may pivot, with the drive pulley, about the pivot axis from a first position into a second position. The first position may be different from the second position.

A ring gear for a planetary gearset and a transmission having the same. The planetary gearset receives an input via a sun shaft to supply an output via a carrier in response to arresting of rotation of the ring gear around an axis. The ring gear includes a plurality of tooth surfaces and opposing tooth surfaces that are distributed around the axis. A pawl, while engaged with the tooth surfaces, is permitted to ratchet on the ring gear in a first angular direction and arrests rotation of the ring gear in a second angular direction opposite to the first angular direction. An opposing pawl, while engaged with the opposing tooth surfaces, is permitted to ratchet on the ring gear in the second angular direction and arrests rotation of the ring gear in the first angular direction. A gear ratio is selected by selectively actuating the pawls and the opposing pawls.

A friction drive transmission includes a drive pulley having an engaging face, a tip plate that supports the drive pulley and is configured to pivot about a pivot axis that is parallel to an axis of rotation of the engaging face of the drive pulley, and a friction ring that drives an axle. The friction ring may contact the engaging face of the drive pulley and may be moveable relative to the engaging face of the drive pulley to transition between forward rotation and reverse rotation. When the friction ring moves into a reverse rotation position for reverse rotation of the axle, the tip plate may pivot, with the drive pulley, about the pivot axis from a first position into a second position. The first position may be different from the second position.

A hybrid transmission includes a first drive shaft, a second drive shaft, an output side and a first torque transmission path extending between the first drive shaft and the output side. The first torque transmission path comprises a first transmission means, wherein the first transmission means comprises a shifting means, a first transmission stage with a first transmission ratio and a second transmission stage with a second transmission ratio different from the first transmission ratio. In a first shifting state of the shifting means, the shifting means connects the first drive shaft to the first transmission stage, and the first transmission stage couples the first drive shaft to the output side. In a second shifting state of the shifting means different from the first shifting state, the shifting means connects the first drive shaft to the second transmission stage, and the second transmission stage couples the first drive shaft to the output side.

There is provided a drive power transmitting mechanism that can transmit drive power losslessly and can be used in environments where silence is required. The drive power transmitting mechanism includes a rotor having a first outer circumferential surface and rotatable about a first rotational axis, a rotor having a second outer circumferential surface pressed against the first outer circumferential surface and rotatable about a second rotational axis due to a frictional force produced between the second outer circumferential surface and the first outer circumferential surface, a gear rotatable in unison with the rotor about the first rotational axis, and a gear rotatable in unison with the rotor about the second rotational axis, in which the gear and the gear are brought into mesh with each other when the second outer circumferential surface slips against the first outer circumferential surface.

An axle assembly having a shift mechanism. The shift mechanism includes an actuator that is configured to move the shift collar along the axis to selectively connect a member of a set of drive pinion gears to a drive pinion. A drive member is also provided that is configured to move the shift collar when actuated.

A transmission can include a shaft arrangement including an input shaft configured to couple to a primer mover and an output shaft coaxially aligned with the input shaft; a plurality of drive gears supported by the shaft arrangement and including a first drive gear, a second drive gear, and a third drive gear; a countershaft arrangement including a first and second countershaft supporting a plurality of pinion gears intermeshed with the first, second, and third drive gears; a clutch arrangement including a first clutch assembly and a second clutch assembly operable to lock the first, second, and third drive gears to the shaft arrangement to selectively provide four gear ratios between the input and output shafts.

A ring gear for a planetary gearset and a transmission having the same. The planetary gearset receives an input via a sun shaft to supply an output via a carrier in response to arresting of rotation of the ring gear around an axis. The ring gear includes a plurality of tooth surfaces and opposing tooth surfaces that are distributed around the axis. A pawl, while engaged with the tooth surfaces, is permitted to ratchet on the ring gear in a first angular direction and arrests rotation of the ring gear in a second angular direction opposite to the first angular direction. An opposing pawl, while engaged with the opposing tooth surfaces, is permitted to ratchet on the ring gear in the second angular direction and arrests rotation of the ring gear in the first angular direction. A gear ratio is selected by selectively actuating the pawls and the opposing pawls.