Friction wheel for a clutch
AssigneeValeo
InventorsJacques Thirion de Briel, Andre Dalbiez
Life of this patent
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Abstract
A clutch wheel for a plate type friction clutch comprises a clutch disc carrying a plurality of friction pads spaced coaxially around it. Each friction pad consists of two pad elements arranged back to back and movable axially with respect to each other against the action of a Belleville ring inserted between them. This axial movement is controlled within predetermined limits by abutment means consisting of cooperating elements of the two friction pads, or of at least one of the friction pads and the clutch disc. The Belleville ring is precompressed in such a way that, within the limits of the axial movement defined by the abutment means, it works only on a part of its characteristic curve in which the reaction force which it exerts is substantially constant.
Claims13
A friction wheel for a clutch comprising a clutch disc and a plurality of friction pads distributed on a pitch circle coaxial with the clutch disc, each friction pad comprising two pad elements lying back to back and resilient means interposed between the two pad elements, with the pad elements projecting on either side of the clutch disc, wherein the clutch disc includes mounting means for mounting the pad elements of each friction pad thereon for axial relative movement between the pad elements under the influence of said resilient means, the clutch wheel further comprising abutment means defined by at least one of said pad elements of each friction pad, said abutment means defining a range of said relative movement between said pad elements within predetermined limits, and wherein said resilient means comprise at least one precompressed resilient ring of the Belleville ring type, said abutment means being so arranged, and the precompression of the resilient means being such, that the resilient means apply a substantially constant reaction force over substantially the whole range of said relative movement.
Dependencies are inferred from the claim text.