| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque transmission device giving, to a pressure member for pressing a clutch, force in a direction separating from the clutch according to rotation speed of a rotating member.SOLUTION: A driving force transmission device 1 working as the torque transmission device includes a pressure mechanism 4 having: a moving member 40 moving in a radial direction of a rotation axis O by moving force based on centrifugal force by rotation of an inner shaft 3; and a force conversion member 41 converting the moving force to the pressing force for pressing a main cam 80 in the direction separating from a main clutch 5 with the movement of the moving member 40. With this, heat generation of inner clutch plates 5a and outer clutch plates 5b of the main clutch 5 by drag torque is inhibited. |
