Spring adjustable tensioning device

Details Spring adjustable tensioning device Spring adjustable tensioning device

1990-03-19

1992-01-07

Bui, Thuy M.

Endless belt power transmission systems or components

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

Pulley or guide roll has eccentric mount for shifting or...

F16H 708

Patent

active

050786563

ABSTRACT:
A tensioning device for drive belts includes a pin pivotable about an axis and having an eccentric surface on which a cam is pivotally mounted. A roller adapted to engage a belt is rotatably mounted on the cam. The cam pivots in reaction to forces on a spring acting between the cam and pin. The spring may be preloaded to a specific operating point by rotation of the pin. Markings or projections acting as stops facilitate adjustment of the preloading of the spring.

REFERENCES:
patent: 2337591 (1941-09-01), Coulson
patent: 4618335 (1986-10-01), Brandenstein et al.
patent: 4634407 (1987-01-01), Holtz
patent: 4904230 (1990-02-01), Kawashima et al.
patent: 4923435 (1990-05-01), Kadota et al.

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