Patent ID: 9003904
Filing Date: 2015-04-14
Classification: F16D,F16H,Y10T

Abstract:
1. A transmission assembly for a vehicle including a support, a crankshaft defining a crankshaft rotation axis, and a current-supplying generator with a generator shaft, said transmission assembly comprising: a transmission mechanism adapted to be mounted to the support, and including first and second gears, a restoring urging member and an annular restricting plate, said first gear being adapted to be coaxially sleeved around the crankshaft in a manner that the crankshaft is rotatable relative to said first gear, said second gear meshing with said first gear and being adapted to be co-rotatably coupled to the generator shaft, said annular restricting plate being adapted to be securely sleeved around the crankshaft and being in contact with said first gear for restricting axial movement of said first gear; a clutch unit adapted to be co-rotatably coupled to the crankshaft and slidable along the crankshaft rotation axis between an engaging position, in which said clutch unit engages said first gear so as to permit transmission of a rotational power of the crankshaft to the generator shaft through said first and second gears, and a disengaging position, in which said clutch unit is disengaged from said first gear, said restoring urging member having two ends abutting against said annular restricting plate and said clutch unit, respectively, for restoring said clutch unit to move back from the engaging position to the disengaging position; and a switching mechanism including a motor, a clutch-driving member that is driven by said motor to move relative to said transmission mechanism and said clutch unit and to drive sliding movement of said clutch unit from the disengaging position to the engaging position, and a gear set coupled between said motor and said clutch-driving member so that said clutch-driving member is driven to move by said motor through said gear set; wherein said clutch-driving member is in the form of a shaft rod that is adapted to be pivoted to the support, that is formed with a notch, and that is driven by said motor through said gear set to rotate relative to said transmission mechanism and said clutch unit between first and second angular positions; wherein said clutch unit includes an annular slider adapted to be slidably sleeved around the crankshaft and engageable with said first gear, one of said ends of said restoring urging member abutting against said annular slider, a pushing plate movably mounted to said annular slider, a resilient buffering member having two ends abutting against said annular slider and said pushing plate, respectively, and a driven protrusion protruding outwardly from said pushing plate toward said shaft rod, being disposed in said notch when said shaft rod is disposed at the first angular position, and being disposed outwardly of said notch and abutting against said shaft rod when said shaft rod is disposed at the second angular position.