Clutch unit and vehicle

A clutch unit comprising:

• a clutch including
• a plurality of torque transfer members, including a plurality of clutch plates and a plurality of friction plates, that transfer a torque by a friction force upon the plurality of clutch plates contacting the plurality of friction plates to form a contact portion therebetween, and
• a clutch spring that connects the plurality of torque transfer members to one another by an elastic restoring force,
• the clutch being switchable to an engaged state where the torque is transferred and a disengaged state where the torque is interrupted;
• an actuator that generates an actuation driving force for actuating the clutch;
• a transfer member that transfers the actuation driving force generated by the actuator to the clutch and receives the elastic restoring force of the clutch spring from the clutch as a clutch reaction force;
• and
• an auxiliary spring member that inputs an assist force for assisting the actuation driving force to the transfer member, wherein
• a force transfer path between the transfer member and the contact portion between the plurality of clutch plates and the plurality of friction plates is so configured that a timing of transfer of the clutch reaction force to the transfer member and a timing of input of the assist force to the transfer member are different in that
• in switching the clutch from the engaged state to the disengaged state, the assist force is input to the transfer member from the auxiliary spring member before the clutch reaction force is input to the transfer member from the clutch, and
• in switching the clutch from the disengaged state to the engaged state, the assist force input to the transfer member from the auxiliary spring member becomes zero after the clutch reaction force input to the transfer member from the clutch becomes zero.