Patent ID: 7669686

Claim:
A transmission assembly comprising: a housing; a gear selector disposed outside the housing; an input shaft and an output shaft, both shafts disposed at least partially inside the housing; a plurality of gears mounted on the input shaft and a plurality of gears mounted on the output shaft, each of the pluralities of gears being disposed within the housing; a gearshift disposed within the housing, the gearshift including at least one shift fork operatively connected to at least one of the plurality of gears and a rotatable shifting control device operatively connected to the gear selector and to the at least one shift fork for transmitting a motion of the gear selector to the at least one shift fork to effect gear selection, the rotatable shifting control device being rotatable about an axis of rotation and including a locking-lever guide disposed eccentrically about the axis of rotation; and a locking lever disposed within the housing, the locking lever having a body with an opening therein and a gear lock associated with at least one of the gears, the locking lever being movable between a first position in which the gear lock locks the at least one of the gears into a fixed position and a second position in which the gear lock allows the at least one of the gears to move from the fixed position, the locking-lever guide being disposed within the opening such that the locking-lever guide rotates eccentrically about the axis of rotation within the opening, and the guide and the opening being constructed and arranged to cooperate with each other such that rotation of the rotatable shifting control device causes the locking-lever guide to move the locking lever from the first position to the second position.