192 clutches and power-stop control – Clutches – Operators
Patent
1987-12-04
1989-08-01
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192110B, 384612, F16D 2314
Patent
active
048527106
ABSTRACT:
A clutch release bearing comprises a maneuvering member operated on by a control member, usually a clutch release yoke. A drive member in direct or indirect axial bearing engagement with the maneuvering member, when operated on by the latter, operates on the clutch release device of a clutch. An axially acting spring washer of the Belleville spring type urges the drive member against the maneuvering member and retains the drive membering relative to the maneuvering member in the axial direction. This spring washer is able to turn inside out selectively so as to assume one or other of two separate stable configurations. One of these is a concave configuration and the other is a convex configuration. One configuration is an inoperative configuration and the other is an operative one. One peripheral edge of the spring washer bears axially on the drive member when it is in the operative configuration. On its other peripheral edge is a set of lugs through which it bears on the maneuvering member. The spring washer and these lugs form a dihedron. The maneuvering member includes a circumferential groove cooperating with the lugs. It has one flank serving as an abutment to the lugs in the inoperative configuration of the spring washer while its other flank supports the lugs in the operative configuration thereof. As a result, the dihedral angle between the lugs and the spring washer remains the same in both the operative and the inoperative configuration.
REFERENCES:
patent: 4029186 (1977-06-01), DeGennes
patent: 4608741 (1986-09-01), Mallet
patent: 4637506 (1987-01-01), Billet
patent: 4643286 (1987-02-01), Lassiaz
patent: 4739867 (1988-04-01), Harrington
Gay Christian
Lassiaz Philippe
Braun Leslie A.
Brown Charles A.
Brown Charles E.
Lorence Richard M.
Valeo
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