Bidirectional belt tensioning approach

Details Bidirectional belt tensioning approach Bidirectional belt tensioning approach

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 7/14 (2006.01)

Patent

CA 2487782

A live center belt-drive uses a biasing moment to induce automatically adjusted and reoriented tensioning resultant force in a belt and pulley system. Embodiments have a motor mounted on a plate freely pivotably mounted to a frame of a device in which the tensioner is used. The motor is connected to a drive pulley and drives a driven pulley via a belt reeved about the drive and driven pulleys. A first biasing mechanism biases the drive pulley away from the driven pulley, thus providing the biasing moment M bias. Embodiments use a linear spring providing a biasing force F bias and mounted a distance d bias from the pivot point to provide the biasing moment M bias about the pivot point. Alternatively, embodiments use a torsion spring mounted about the pivot point to provide the biasing moment M bias. Embodiments can also employ a second biasing mechanism to bias the driven pulley away from the drive pulley.

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