One-way clutched damper for automatic belt tensioner

Details One-way clutched damper for automatic belt tensioner One-way clutched damper for automatic belt tensioner

2006-08-31

2011-10-18

Siconolfi, Robert (Department: 3657)

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...

C188S082400, C188S082900, C474S131000, C474S132000, C474S133000, C474S134000, C474S136000, C192S219300

Reexamination Certificate

active

08038555

ABSTRACT:
A new asymmetrically damped tensioner is provided utilizing a bearing-ramp clutch. During normal operation, the bearing-ramp clutch enables the tensioner arm to pivot in a first direction to take up belt slack with negligible frictional damping applied to the motion of the tensioner arm. When the tensioner arm pivots in a second direction, away from the belt, however, in a condition commonly known as wind-up, the bearing-ramp clutch locks against a fixed internal surface and creates a frictional damping force that is applied to the tensioner arm. This frictional linkage provides asymmetric frictional damping to the tensioner to limit movement in the second direction to mitigate wind-up.

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