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
1982-04-16
1984-09-18
Staab, Lawrence J.
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...
474133, 474117, F16H 712
Patent
active
044721625
ABSTRACT:
A tensioning device for maintaining a predetermined amount of tensioning force on an endless drive belt for a vehicle accessories drive system. A shaft is mounted in a fixed position on the vehicle engine adjacent the drive belt. A housing is pivotally mounted on the shaft and is biased by a torsional coil spring in a belt tensioning direction. The spring is located within an annular space formed by spaced inner and outer housing walls and is telescopically mounted with respect to the shaft. A lever extends generally radially outwardly from the housing and an idler pulley is mounted on an end of the lever and is moved into tensioning engagement with the drive belt by the torsion spring. One end of the spring is attached to the housing and the other end is adapted to be fixed with respect to the shaft. The spring is placed in torsion and biases the lever and housing in the belt tensioning direction. An annular-shaped elastomer member is telescopically mounted on the shaft within a central housing bore and is compressed by an end plate against the shaft and housing to provide a shock-absorbing damping effect on the housing and belt-engaging pulley.
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patent: 4392840 (1983-07-01), Radocaj
Diehl Dwight G.
Dyneer Corporation
Staab Lawrence J.
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