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
1990-05-01
1991-03-19
Britts, Ramon S.
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
474137, 474140, 474136, F16H 708
Patent
active
050007246
ABSTRACT:
A roller chain tensioning device includes a pair of low friction chain engaging blocks that are held selectively together by a flexible strap and fastener device. The blocks include formed surfaces for loosely receiving the side plates of the chain and for roller engagement by the chain rollers. The chain flights are received with the rollers in moving contact with the guide blocks while the chain side plates are loosley and freely received by opposed grooves, opposite to the roller engaging surfaces. The blocks are provided with opposed roller engaging surfaces of different size to facilitate operation with chains having rollers of different size. The strap and fastener enable selective adjustment of the blocks toward or away from one another thereby adjust tension along the engaged chain flights.
REFERENCES:
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Britts Ramon S.
Schoeppel Roger J.
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