초록 ▼

A differential gear mechanism is provided of the type including a gear case (17), at least one pinion gear (21), and a pair of side gears (27 and 29). Clutch packs (43 and 45) are disposed between the side gears and the gear case and are operable, when engaged, to retard relative rotation between th

A differential gear mechanism is provided of the type including a gear case (17), at least one pinion gear (21), and a pair of side gears (27 and 29). Clutch packs (43 and 45) are disposed between the side gears and the gear case and are operable, when engaged, to retard relative rotation between the gear case and the side gears. The mechanism includes a fluid pressure actuated displacement mechanism (57) which, in response to an external signal (71) transmits its output displacment into axial movement of a plurality of input members (81). The axial movemenat of the input members has an actuating travel X and an actuating force F. A pair of lever members (85) receives the axial input from the input members 81, with each lever member pivoting about a fulcrum member (91) to transmit to each of the clutches a clutch actuating movement having an actuating travel substantially less than the actuating travel X, and an actuating force substantially greater than the actuating force F.

대표청구항 ▼

A differential gear mechanism of the type including a gear case defining a gear chamber and an axis of rotation; at least one pinion gear, and a pair of bevel side gears in meshing engagement with said pinion gear; clutch means operable between a relatively disengaged condition and a relatively enga

A differential gear mechanism of the type including a gear case defining a gear chamber and an axis of rotation; at least one pinion gear, and a pair of bevel side gears in meshing engagement with said pinion gear; clutch means operable between a relatively disengaged condition and a relatively engaged condition, and effective to retard relative rotation between said gear case and each of said side gears, said clutch means comprising at least a pair of clutching surfaces disposed to be engaged in response to axial movement of one of said side gears toward the adjacent surface of said gear case; and actuating means for actuating said clutch means, said actuating means comprising a fluid pressure actuated displacement mechanism operable to achieve an output displacement in response to an external fluid pressure input signal, characterized by: (a) said actuating means including input means operable in response to said output displacement of said displacement mechanism to provide an axial input having an actuating travel X and an actuating force F; (b) said actuating means further including fulcrum means, and lever means operatively associated with said fulcrum means and with said input means to transmit said axial input into clutch actuating movement of said one of said side gears; and (c) said fulcrum means and lever means being configured such that said clutch actuating movement of said one side gear has an actuating travel substantially less than said actuating travel X, and an actuating force substantially greater than said actuating force F.