A descent control device includes a gear train, a speed-control mechanism, a first fastening plate, a second fastening plate and a third fastening plate.

A descent control device includes a gear train, a speed-control mechanism, a first fastening plate, a second fastening plate and a third fastening plate.

A drive transmission mechanism includes a first gearbox including a driving source, a first gear train, a first frame configured to support one ends of a plurality of shafts of the first gear train, and a first gear cover configured to support the other ends of the shafts of the first gear train, wherein the first gear box is configured to transmit a driving force from the driving source; and a second gearbox including a second gear train, a second frame configured to support one ends of a plurality of shafts of the second gear train, and a second gear cover configured to support the other ends of the shafts of the second gear train, wherein the second gearbox is configured to receive the driving force from the driving source through the first gear train and configured to transmit the driving force. The second gearbox is fixed to the first gearbox.

A drive transmission mechanism includes a first gearbox including a driving source, a first gear train, a first frame configured to support one ends of a plurality of shafts of the first gear train, and a first gear cover configured to support the other ends of the shafts of the first gear train, wherein the first gear box is configured to transmit a driving force from the driving source; and a second gearbox including a second gear train, a second frame configured to support one ends of a plurality of shafts of the second gear train, and a second gear cover configured to support the other ends of the shafts of the second gear train, wherein the second gearbox is configured to receive the driving force from the driving source through the first gear train and configured to transmit the driving force. The second gearbox is fixed to the first gearbox.

A descent control device includes a gear train, a speed-control mechanism, a first fastening plate, a second fastening plate and a third fastening plate.

A descent control device includes a gear train, a speed-control mechanism, a first fastening plate, a second fastening plate and a third fastening plate.

In a power unit for a saddle-type vehicle a locking pin on a shift drum side is fixed to a shift spindle and a detection shaft of a shift position sensor is interlocked and connected with the shift drum, the friction surface between the shift arm and the locking pin is reduced with suppression of the lowering of the rigidity of the shift arm to enable smooth gear shifting. An engagement hole in a shift arm allows insertion and engagement of a locking pin and has an elongated hole shape extending along one diameter line of a shift spindle. An insertion hole in the shift arm has an arc shape centered at the center axis line of the shift spindle to allow insertion of an interlocking shaft coaxially connected to the shift drum to be incapable of rotation relative to it.

In a power unit for a saddle-type vehicle a locking pin on a shift drum side is fixed to a shift spindle and a detection shaft of a shift position sensor is interlocked and connected with the shift drum, the friction surface between the shift arm and the locking pin is reduced with suppression of the lowering of the rigidity of the shift arm to enable smooth gear shifting. An engagement hole in a shift arm allows insertion and engagement of a locking pin and has an elongated hole shape extending along one diameter line of a shift spindle. An insertion hole in the shift arm has an arc shape centered at the center axis line of the shift spindle to allow insertion of an interlocking shaft coaxially connected to the shift drum to be incapable of rotation relative to it.

A sequential clutch gear system is disclosed which functions to provide one separate shaft for each gear which is activated by its own separate clutch. The system shift any gear at any time (therefore not necessarily in the sequential order) which provides automatic and manual transmission both also, it eliminate the use of clutch manually and gear freely at any number. The transmission system further includes a sequential gear box arrangement which comprises: an engine shaft which transmits engine rotation to transmission entrance; an drive shaft engaged via at least one belt, at least one chain, one or more planetary gears including at least one reverse gear; one or more clutch; on other side of said clutch one or more shaft with said gear connected to the said drive shaft; said drive shaft connected to the tyres.

An electric drive axle with an electric motor having a motor shaft that is rotatable about an axis, a differential, and a transmission. The transmission transmits rotary power between the motor shaft and the differential. The multi-speed reduction has an input shaft and at least three on-axis gears. The input shaft is rotatably coupled to the motor shaft. Each of the at least three on-axis gears is co-axial with the input shaft and is rotatable relative to the input shaft in at least one of a first speed ratio and a second speed ratio. The input shaft is axially movable along the axis between a first position, in which a first one of the at least three on-axis gears is rotationally coupled to the input shaft, and a second position in which a second one of the at least three on-axis gears is rotationally coupled to the input shaft.