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1. (WO2018164222) DISC SPRING

Pub. No.:    WO/2018/164222    International Application No.:    PCT/JP2018/008963
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: F16F 1/32
F16D 13/58
Applicants: NHK SPRING CO., LTD.
Inventors: SAKAI Hideaki
酒井 秀彰
Provided is a disc spring which fits with a rotating shaft. The disc spring includes an annular body part and claw parts that project radially inward from the inner circumferential edge of the body part. The claw parts gradually extend toward one side in the axial direction as the claw parts project radially inward. In the claw parts, a hole is formed in at least the tip part thereof.