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...
Patent
1981-08-27
1985-04-09
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...
188290, 188306, 188316, 188285, 474136, F16H 712, F16D 5700, F16F 914, F16F 948
Patent
active
045099359
ABSTRACT:
A tensioner for a power transmission belt that is adapted to be operated in an endless path and a method of making the same are provided, the tensioner comprising 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 movement thereof, the dampening unit comprising a piston unit and a cylinder unit having the piston unit therein and defining two chambers for fluid in the cylinder unit on opposite sides of the piston unit. An accumulator chamber is disposed remote from the two chambers and a passage arrangement leads from one of the two chambers of the cylinder unit to the accumulator chamber.
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Patent application Ser. No. 296,694, filed 8/27/81, (Dayco Corporation Docket No. 81-6), of Leslie B. Wilson.
Foster Randy C.
Hackard Roger G.
Wilson Leslie B.
Bednarek Michael D.
Dayco Corporation
Staab Lawrence J.
Tassone Joseph V.
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