Automatic belt tensioner

Details Automatic belt tensioner Automatic belt tensioner

1987-05-20

1988-05-10

Novosad, Stephen J.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

474109, 474133, F16H 712

Patent

active

047432241

ABSTRACT:
A belt tensioner has a shaft having an external thread and rotatably mounted in a body, a torsion spring provided between the body and the shaft so as to urge the shaft in a rotational direction, and a cylindrical rod having an internal thread engaged with the external thread of the shaft. An upper end of the rod being projected from the body so as to be operatively connected to a tension pulley for a belt. The torsion spring and both the threads are arranged to project rod by the rotation of the shaft urged by the torsion spring.

REFERENCES:
patent: 4151756 (1979-05-01), Binder et al.
patent: 4411638 (1983-10-01), Wilson
patent: 4525153 (1985-06-01), Wilson
patent: 4539001 (1985-09-01), Okabe
patent: 4573952 (1986-03-01), Schulze
patent: 4657524 (1987-04-01), Okabe

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