Patent ID: 6364236
Filing Date: 2002-04-02
Classification: B60R

Abstract:
A coupling between the rotor (16) of a belt tensioner rotary drive and a drive shaft (22), including an externally toothed coupling wheel (24) connected to said drive shaft (22) and at least one coupling pawl (32) which is arranged on said rotor (16) and is movable between a resting position in which it is located spaced away from the periphery of said coupling wheel and an engaging position in which it engages said coupling wheel, characterized in that said coupling pawl (32) is toggle-mounted on a knife-edge bearing (36) on said rotor (16) and the center of gravity (s) of said coupling pawl (32) relative to said knife-edge bearing (36) is selected such that on commencement of rotation of said rotor (16) said coupling pawl (32) is deflected by mass inertia into the engaging position.