Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Tension adjuster has surface in sliding contact with belt
Patent
1998-03-26
2000-07-11
Bucci, David A.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Tension adjuster has surface in sliding contact with belt
474140, F16H 708, F16H 718
Patent
active
060864982
ABSTRACT:
To provide a tensioner lever having a shoe made of resin is molded to prevent distortion of the shoe and increase the precision of shape and reduce the power loss caused by the abrasion of the shoe surface by friction with the chain. A tensioner lever (1) in which a shoe (3) made of resin in sliding contact with a chain is secured to a lever base (2) made of metal having a proximal end (2A) is supported rotatably about a pivotal axis so that an extreme end (2B) can be pivoted, wherein a portion of the shoe (3) having a large wall-thickness is formed with cored-out portions (3F, 3H) whereby when the shoe is molded, the resin for material thereof uniformly flows within a mold, a curing speed of the whole shoe (3) is made uniform, and distortion when molding is prevented to enhance the shape precision of the shoe (3) and the mounting precision to the lever base (2).
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Bucci David A.
Kaness Matthew A.
Skillman Henry H.
Tsubakimoto Chain Co.
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