To provide a power transmission device which can inhibit the rotation of a pressure member relative to a clutch member, thereby inhibiting vibration in the same direction.
A power transmission device has: a clutch housing member 2 to which a plurality of drive-side clutch plates 6 are attached; a clutch member 4 to which a plurality of driven-side clutch plates 7 are attached; and a pressure member 5 which is capable of applying and releasing, in accordance with the movement of the clutch member 4 in the axial direction, a pressing force which causes the drive-side clutch plates 6 and the driven-side clutch plates 7 to engage with each other. By applying and releasing a pressing force which causes the drive-side clutch plates 6 and the driven-side clutch plates 7 to engage with each other, the power transmission device can transmit to a shaft 3, and intercept, rotary force inputted into the clutch housing member 2. The power transmission device is provided with a resistance member 11 which generates sliding resistance with respect to the pressure member 5 when the pressure member 5 rotates relative to the clutch member 4.
KAWASHIMA NARISHIRO
FURUHASHI SHINJI
ANDO TAKESHI
| JP2009068578A | 2009-04-02 | |||
| JP2010053988A | 2010-03-11 | |||
| JP2007177890A | 2007-07-12 |