Belt tensioner

Details Belt tensioner Belt tensioner

1983-02-23

1985-02-19

Staab, Lawrence J.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Guide roll mounted for movement of its axis along...

474110, F16H 712

Patent

active

045003041

ABSTRACT:
A tensioner for a power transmission belt that is adapted to be operated in an endless path is provided and comprises a support unit for being fixed relative to the belt, a belt engaging unit carried by the support unit and being movable relative thereto, a mechanical spring unit operatively associated with the support unit and the belt engaging unit for urging the belt engaging unit relative to the support unit and against the belt with a force to tension the belt, and a fluid dampening unit operatively associated with the support unit and the belt engaging unit to dampen the movement of the belt engaging unit relative to the support unit in at least one direction of the movement thereof, the fluid dampening unit comprising a piston and cylinder unit. The mechanical spring unit comprises a pair of coiled compression springs with their longitudinal axes disposed in substantially parallel side-by-side spaced relation, the fluid dampening unit being generally disposed between the springs and in substantially parallel relation therewith.

REFERENCES:
patent: 1077339 (1913-11-01), Farrell
patent: 2554738 (1951-05-01), Hager et al.
patent: 3802286 (1974-04-01), Winklhofer et al.
patent: 4425103 (1984-01-01), Foster

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