Ratchet-type tensioner with positive backlash

Details Ratchet-type tensioner with positive backlash Ratchet-type tensioner with positive backlash

1988-06-29

1989-04-18

Bui, Thuy M.

Endless belt power transmission systems or components

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

Tension adjuster has surface in sliding contact with belt

474136, F16H 708

Patent

active

048223204

ABSTRACT:
A ratchet-type tensioner for maintaining tension with positive backlash in a chain, belt or similar power transmission device wrapped around sprockets or sheaves. A spring-biased plunger protrudes from a housing against the device. A rack formed on the plunger meshes with a ratchet which is pivotally connected to the housing to permit a positive backlash not less than a predetermined minimum.

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