| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch mechanism for a vehicle which is small in drag torque at the time of blocking of power, and small in a physique.SOLUTION: A clutch hub 76 is constituted of a clutch hub main body 76b which is non-rotatably connected to a rear-wheel side output shaft 44, and an inner hub 76d which is relatively rotatably arranged at the clutch main body 76b, and with which an internal peripheral side of a friction engagement element is relatively non-rotatably engaged. The clutch hub also comprises a sleeve 77 which is relatively non-rotatably and relatively movably arranged at the inner hub 76d in a rotational axial line C1 of the rear-wheel output shaft 44, and interlocks with a piston 82 up to a position in which the sleeve is engaged with the clutch hub main body 76b. At the time of blocking of power, since a plurality of friction plates 80 do not relatively rotate with respect to one another, drag torque is significantly small. Furthermore, rotational synchronization and an adjustment function of transmission torque can be performed by one piston drive unit PD1, and a physique of a front-wheel drive clutch 50 becomes small.SELECTED DRAWING: Figure 3 |
