Belt tensioner and method of making the same

Details Belt tensioner and method of making the same Belt tensioner and method of making the same

1988-11-23

1989-12-12

Bui, Thuy M.

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 arcuate...

F16H 712

Patent

active

048864838

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 having a frictional dampening unit operatively associated with the support unit and the belt engaging unit thereof to dampen the movement of the belt engaging unit relative to the support unit, the dampening unit comprising a pair of frictionally engaging first and second parts with the first part comprising an annular pad of friction material that is coaxially disposed and axially movable on a shaft relative to the second part, and a spring urging the first part against the second part with a certain spring force, the tensioner having an antifriction annular disc-like member disposed on the shaft between the first spring and one of the support unit and the belt engaging unit, the first part of the dampening unit having a guide thereon, the one of the support unit and the belt engaging unit having an opening therein that receives the guide therein to guide axial movement of the first part, the tensioner having a bearing disposed in the opening and receiving the guide therein, the antifriction disc-like member carrying the bearing on one side thereof.

REFERENCES:
patent: 4596538 (1986-06-01), Henderson
patent: 4728318 (1988-03-01), Henderson
patent: 4784631 (1988-11-01), Henderson

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