Importance

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Abstract

A torsional damper comprises at least two coaxial parts rotatable relative to one another within predetermined limits. A plurality of circumferentially acting elastic means are disposed between them in the circumferential direction. These elastic means comprise at least one block of elastic material extending in a substantially tangential direction. The or each elastic material block is partially housed, without circumferential clearance in a rest configuration of the damper, in an opening formed for this purpose in a first of the coaxial parts. It is further partially housed, with circumferential clearance in this rest configuration and for at least one circumferential direction, in an opening formed for this purpose in a second of the coaxial parts. The elastic material block carries at least one elastic material peg projecting from it in at least this circumferential direction. The arrangement is such that, even in the rest configuration, the elastic material peg is in contact with the corresponding radial edge of the housing in the second coaxial part. Thus it comes into action as soon as there is any relative angular movement of the first and second coaxial parts.

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First Claim