TRANSMISSION SYSTEM

摘要

A transmission system including a first shaft (3), a first gear element (13) rotatably mounted on the shaft, a selector assembly (29) including first and second sets of engagement members (35,36) that are arranged to selectively lock the first gear element (13) for rotation with the first shaft (3), said selection including selecting from at least the following operational modes: lock the first gear element (13) for rotation with the first shaft (3) in the clockwise and anti- clockwise directions; lock the first gear element (13) for rotation with the first shaft (3) in a clockwise direction and unlocked in an anti-clockwise direction; lock the first gear element (13) for rotation with the first shaft (3) in the anti-clockwise direction and unlocked in the clockwise direction, wherein said gear element includes first and second parts (202,204) that are arranged to rotate relative to each other and a damping system (238,240), wherein the first part (202) includes a first set of drive formations (212), the second part (204) includes a second set of drive formations (220), wherein when selecting the first gear element (13) with one of the first and second sets of engagement members (25,36), that set of engagement members (35,36) is arranged to drivingly engage the second set of drive formations (220) to cause relative rotational movement between the first and second parts (202,204) of the gear element, the damping system (238,240) is arranged to damp the relative rotational movement between the first and second parts (202,204) of the gear element, and after some damping has occurred the engagement members are arranged to drivingly engage the first set of drive formations (212). A gear element (13) and a gear selector assembly (29) having a damping system (238,240) is also disclosed.