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...
Patent
1989-07-24
1990-09-18
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...
474135, F16H 708
Patent
active
049574710
ABSTRACT:
An adjustable locked center and dynamic tensioner include both a method for setting tension in a belt or chain drive system and apparatus for setting the friction torque so as to match the system setting torque. The method includes forcing the tensioner against a stable mounting surface with sufficient spring load that a target friction torque will be required to rotate the tensioner. The tensioner arm is then rotated into the belt or chain until, when the setting torque is removed, the belt or chain will counter rotate the tensioner arm and the target friction torque in the tensioner will cause the target setting tension to remain in the system. The apparatus includes a tensioner arm pivotally mounted on a fixed surface with a spring engaging the arm and being clamped against the fixed surface. Modifications include introducing a compliant coupler such as an elastomeric bushing or spring between the stable mounting surface and the tensioner arm.
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Bui Thuy M.
Taylor Reese
LandOfFree
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