Timing belt tensioner having a floating backstop

Details Timing belt tensioner having a floating backstop Timing belt tensioner having a floating backstop

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 7/12 (2006.01)

Patent

CA 2392560

A tensioner (10) comprises a base (20) and a pivot shaft (16) extending from the base. A spring (18) is connected with the pivoting arm (14) to bias the arm (14) into tensioning engagement with an endless drive component of an engine. A floating backstop assembly comprises a lever member (36) and an arm engagement member (30). The lever member (36) is rotatably mounted on the base and the arm engagement member (30) is engaged with the lever member. The lever member (36) and the arm engagement member (30) are oriented such that the arm engagement member (30) can be biased by the spring (18) into a direction towards the arcuate surface structure of the pivoting arm (14) so as to apply a frictional force sufficient to stop movement of the arm (14). Image

La présente invention concerne un tendeur (10) comprenant une base (20) et un arbre pivot (16) s'étendant depuis la base. Un ressort (18) est connecté bras pivotant (14) afin de solliciter le bras (14) dans un engagement de tension avec un composant d'entraînement sans fin du moteur. Un assemblage antiretour flottant comprend un élément levier (36) et un élément d'engagement de bras (30). L'élément levier (36) est monté tournant sur la base, et l'élément d'engagement de bras (30) est engagé avec l'élément levier. L'élément levier (36) et l'élément d'engagement de bras (30) sont orientés de façon à ce que l'élément d'engagement de bras (30) puisse être sollicité par le ressort (18) en direction de la structure de surface arquée du bras pivotant (14) de façon à appliquer une force de friction qui suffit à arrêter le mouvement du bras (14).

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