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US 10,683,914 B2Granted
Tensioner
AssigneeThe Gates Corporation
InventorsSukhdeep Singh, Michael J. Koppeser, Anil Kumar Bhalla
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Abstract
A tensioner comprising a base, a pivot arm pivotally engaged with the base, a pulley journalled to the pivot arm, a torsion spring urging the pivot arm, the torsion spring loaded in the unwinding direction, the torsion spring engaged with a damping shoe, the damping shoe frictionally engaging the base, and the damping shoe having a damping shoe portion comprising PTFE mixed within a plastic matrix material, the PTFE comprising between 2% and 4% of the plastic matrix material by weight.
Claims5
A tensioner comprising:
- a base;
- a pivot arm pivotally engaged with the base;
- a pulley journalled to the pivot arm;
- a torsion spring urging the pivot arm, the torsion spring loaded in an unwinding direction;
- the torsion spring engaged with a damping shoe, the damping shoe frictionally engaging the base;
- and
- the damping shoe having a damping shoe portion comprising PTFE mixed within a plastic matrix material, the PTFE comprising between 2% and 4% of the plastic matrix material by weight.
4 more elements
Dependencies are inferred from the claim text.