Adaptive belt tensioner system for control of reversible...

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 2469826

A tensioner (14, 114) for an endless power transmission belt, the belt (12) being driven about a sheave. The tensioner may comprise a base (22, 122), a resilient device (46, 146), and first and second arms (24, 26; 124, 126) pivotally coupled for movement in an opened and a closed direction. The tensioner (14, 114) may also comprise first and second pulleys (25, 27; 125, 127) rotably coupled to the and second arms (24, 26; 124, 126), the resilient device (46, 146) biasing the arms in the closed direction in which the first and second pulleys (25, 27; 125, 127) apply tension to the belt (12). The tensioner (14, 114) may also comprise first and second stops (28, 30; 128, 130) positioned outside the arms on the base (22, 122) to limit the movement of the arms in the open direction in response to an increase in tension in the belt.

Cette invention concerne un tendeur (14, 114) pour courroie sans fin de transmission de puissance, la courroie (12) étant entraînée par une poulie. Le tendeur peut comprendre une base (22, 122), un dispositif souple (46, 146), ainsi qu'un premier et un second bras (24, 26; 124, 126) couplés pivotant et se déplaçant entre une position ouverte et une position fermée. Le tendeur (14, 114) peut également comporter une première et une seconde poulies (25, 27; 125, 127) reliées rotatif avec le premier et le second bras (24, 26; 124, 126), le dispositif élastique (46, 146) sollicitant les bras vers la position fermée dans laquelle les première et seconde poulies (25, 27; 125, 127) appliquent une tension sur la courroie (12). De plus, le tendeur (14, 114) peut comporter une première et une seconde butées (28, 30; 128, 130) positionnées sur la base (22, 122) à l'écart des bras et qui limite le déplacement des bras dans le sens de l'ouverture à la suite d'une augmentation de la tension de la courroie.

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