Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Tension adjuster or shifter driven by electrical or fluid motor
Patent
1979-12-10
1981-11-03
Staab, Lawrence J.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Tension adjuster or shifter driven by electrical or fluid motor
474133, 741415, F16H 712
Patent
active
042983428
ABSTRACT:
A belt tensioner has a pair of pivotally mounted cam members which engage a stationary mounting strap. One cam is pivotally mounted on a block which is drivingly connected through a pivotal lever to a linear motor. The one cam is operative to engage a stationary strap when the motor is operated to urge the belt sheave bracket to pivot in a direction to increase the tension in the belt. When the one cam and block are moved by the return stroke of the motor, the other cam, which is mounted on the belt sheave bracket, engages the stationary strap to prevent movement of the belt sheave bracket relative to the strap.
REFERENCES:
patent: 3406582 (1968-10-01), Frentzel
patent: 3631734 (1972-01-01), Wagner
patent: 3785220 (1974-01-01), Jacobs
patent: 3888217 (1975-06-01), Hisserich
Clayton Kenneth H.
Denniston Charles D.
Guetersloh Donald G.
Hallmann Melvin H.
General Motors Corporation
Scherer Donald F.
Staab Lawrence J.
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