Apparatus for maintaining tension of an endless drive member

Details Apparatus for maintaining tension of an endless drive member Apparatus for maintaining tension of an endless drive member

1982-05-17

1984-08-07

Braun, Leslie A.

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...

474135, F16H 712

Patent

active

044641460

ABSTRACT:
An apparatus is disclosed for maintaining tension on an endless drive member such as a belt or chain. A pulley or sprocket (10) is provided to impart a tensioning force to the drive member, the pulley being supported at one end of a torque arm (16) and the torque arm being pivotably mounted at its other end by a torque applying and oscillation damping assembly (18) comprising a lubricated elastomeric bushing assembly (26-34) and a coaxial, telescoped elastomeric spring assembly (36-48), whereby oscillations of the rubber spring, torque arm and pulley assembly are damped by the elastomeric bushing assembly. See FIGS. 1-3.

REFERENCES:
patent: 3133769 (1964-05-01), Drake
patent: 3524359 (1970-08-01), Buchwald
patent: 3545737 (1970-12-01), Lamprey
patent: 3817113 (1974-06-01), Pfarrwaller
patent: 3975965 (1976-08-01), Speer
patent: 3998503 (1976-12-01), Van Wyk
patent: 4144772 (1979-03-01), Brackin et al.

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