Patent ID: 9606490
Date: 2017-03-28
CPC Classifications: F16D,F16H,G03G

Claim:
1. A rotation force transmission mechanism configured to transmit a rotation force from a single driving source to a first rotating member and a second rotating member, the rotation force transmission mechanism comprising: a first rotation force transmission path configured to transmit the rotation force in a first direction from the driving source to the first rotating member; a second rotation force transmission path configured to transmit the rotation force in a second direction opposite to the first direction from the driving source to the first rotating member; a third rotation force transmission path configured to transmit the rotation force from the driving source to the second rotating member; a torque limiter provided between the first rotating member and the driving source in the first rotation force transmission path, and configured to couple the first rotating member and the driving source to each other so as to be able to transmit the rotation force until a torque of a predetermined value is applied, and to decouple from each other if a torque larger than the predetermined value is applied; a braking member configured to apply a torque exceeding the predetermined value to the first rotating member; and a clutch member capable of being switched into a transmission state in which the rotation force can be transmitted to the first rotating member and an interruption state in which the transmission of the rotation force is interrupted, in the second rotation force transmission path, wherein the rotation force is transmitted to the first rotating member and the second rotating member such that the first rotating member and the second rotating member are rotated in any one of a first rotation state, a second rotation state and a third rotation state: the first rotation state in which while the clutch member is switched into the interruption state to interrupt the transmission of the rotation force to the first rotating member through the second rotation force transmission path, the rotation force is transmitted to the first rotating member through the first rotation force transmission path to rotate the first rotating member in the first direction and also the second rotating member is rotated through the third rotation force transmission path; the second rotation state in which while the clutch member is switched into the transmission state to transmit the rotation force to the first rotating member through the second rotation force transmission path, the first rotating member applies a torque exceeding the predetermined value to the torque limiter to interrupt the transmission of the rotation force to the first rotating member through the first rotation force transmission path and then to rotate the first rotating member in the second direction and also the second rotating member is rotated through the third rotation force transmission path; and the third rotation state in which while the clutch member is switched into the interruption state to interrupt the transmission of the rotation force to the first rotating member through the second rotation force transmission path, the breaking member applies a torque exceeding the predetermined value to the first rotating member to stop the rotation of the first rotating member in the first rotation force transmission path and also the second rotating member is rotated through the third rotation force transmission path.