Dual friction surface asymmetric damped tensioner
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United States of America Patent
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N/A
Issued Date -
Jun 26, 2003
app pub date -
Dec 20, 2001
filing date -
Dec 20, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A belt tensioner for a power transmission belt is provided that operates on an endless path and that utilizes asymmetric motion control. The belt tensioner has an arm with a belt engaging section and a drum section, a support member for securing the tensioner relative to the belt, where the arm pivots about the support member, and a tension spring that urges the arm to pivot about the support member in a first direction and urges the belt engaging section against the belt with a force to tension the belt. The tensioner also has a stator inside the drum section utilized to form arcuate spaces circumferentially spaced around the stator between the stator and the drum section and arcuate shaped wedges in the arcuate spaces. The tensioner further has a Bellville spring coupled to the arm and a friction device positioned between the wedges and Bellville spring.
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