Tensioner for an endless drive

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 7/12 (2006.01) F16H 7/08 (2006.01)

Patent

CA 2646811

The present invention relates to a tensioner (1) for an endless drive, in particular of an internal combustion engine, wherein the tensioner has a base part (2) and a clamping part (3) which can rotate relative to the former, a spring element (11) which is arranged between the base part and the clamping part (3) so as to impart a force, and a friction apparatus (12) which is provided between the spring element (11) and the base part or the clamping part (3) and by way of which the relative movement between the base part (2) and the clamping part (3) is damped. In order to improve a tensioner of the generic type in such a way that a simple construction is possible with satisfactory damping, it is proposed to arrange the friction apparatus (13) radially outside the spring element (11).

La présente invention concerne un tendeur (1) pour transmission sans fin, notamment d'un moteur à combustion interne, le tendeur présentant une partie (2) de base et une partie (3) de tension pouvant tourner par rapport à celle-ci, un élément (11) ressort appliquant une force et disposé entre la partie de base et la partie (3) de tension ainsi qu'un dispositif (12) de friction prévu entre l'élément (11) ressort et la partie de base ou la partie (3) de tension, avec lequel le mouvement relatif entre la partie (2) de base et la partie (3) de tension est amorti. Pour améliorer un tendeur générique de manière à permettre un montage aisé tout en assurant un bon amortissement, il est proposé de disposer le dispositif (12) de friction dans le sens radial à l'extérieur de l'élément (11) ressort.

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