公开(公告)号：US20240295243A1

公开(公告)日：2024-09-05

申请号：US18661923

申请日：2024-05-13

Applicant: Kabushiki Kaisha F.C.C.

Inventor： Nobuhiro HIMENO ,  Yoshikatsu SAKAGUCHI ,  Makoto AMANO

IPC: F16D25/12 ,  F16D25/0638

CPC classification number: F16D25/12 ,  F16D25/0638

Abstract: A clutch piston 1 is attached to a clutch with clutch plates 5 and a return spring 6. The clutch piston 1 has an operation portion 2 that transmits motive power by causing the clutch plates 5 to be in pressure contact with each other. Also, it breaks transmission of a driving force by releasing a force generated by the clutch plates 5 in pressure contact with each other. A holding portion 3 holds one end portion 6a of the return spring 6. A recessed portion 4 is formed in a predetermined part of the holding portion 3. It has inclined wall surfaces 4c, connecting edge surfaces 4a and a bottom surface 4b.