Eccentric pulley for inelastic timing belt
AssigneePitney Bowes Inc.
InventorsJohn I. Clark, Leo Wologodzew
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Abstract
Apparatus for maintaining substantially constant tension in an inelastic timing belt driven by a rigid, swinging arm, including a driven, circular pulley, an eccentrically mounted, circular idler pulley, an inelastic timing belt mounted about the driven and idler pulleys to provide minimum tension at mid-motion and maximum tension at the start and end of motion, and a rigid swinging arm pivotably mounted equidistant from the centers of the driven and idler pulleys and secured at one end to the timing belt.
Claims5
Apparatus for maintaining substantially constant tension in an inelastic timing belt driven by a rigid, swinging arm, comprising:
- a driven, circular pulley;
- an eccentrically mounted, circular idler pulley;
- an inelastic timing belt mounted about said driven and idler pulleys;
- and
- a rigid, swinging arm pivotably mounted equidistant from the centers of the shafts of said driven and idler pulleys and secured at one end to said timing belt, whereby minimum tension is provided to said timing belt at its mid-motion and maximum tension is provided to said timing belt at the start and end of its motion.
Dependencies are inferred from the claim text.