Diaphragm spring for use in friction clutches or the like

192 clutches and power-stop control – Clutches – Operators

Patent

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Details

267158, 267161, F16D 1344, F16F 134

Patent

active

046258477

ABSTRACT:
A diaphragm spring which can be used in a friction clutch for automotive vehicles has a circumferentially complete annular section and elongated fingers extending radially inwardly from the annular section and having inner end portions of substantially uniform width, as considered in the circumferential direction of the annular section. The slots between neighboring fingers include alternating narrower and wider slots, and the slots have enlarged outermost portions in the region of the annular section. The width of the outermost portion of each wider slot equals twice the width of the outermost portion of a narrower slot plus the width of the outermost portion of a finger. The width of the innermost portions of the slots is uniform, and the spring is secured to the cover of a clutch by rivets whose shanks extend through the outermost portions of the narrower slots. The end faces of the inner end portions of the fingers bound a substantially circular opening.

REFERENCES:
patent: 3977504 (1976-08-01), Kajitani
patent: 4241819 (1980-12-01), Babcock et al.

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