公开(公告)号：US20200158194A1

公开(公告)日：2020-05-21

申请号：US16751453

申请日：2020-01-24

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Makoto Kataoka ,  Go ANDO ,  Yoshihiko OZAWA ,  Han Hiong CHEN

IPC: F16D43/21 ,  F16D13/56 ,  F16D7/02

Abstract: A transmission device has a clutch spring (8). The clutch spring (8) can generate rotational resistance that occurs when a pressure member (5) rotates relative to a clutch member (4) due to clearance between cam surfaces of a press-contact assisting cam or a back torque limiting cam. Thus, one end (8a) of the clutch spring (8) slides on a surface (10a) of a restricting member 10. A side surface (8b) of the clutch spring (8) is held in the longitudinal direction.