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
1990-09-26
1992-03-24
Bui, Thuy M.
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...
474117, F16H 708
Patent
active
050983474
ABSTRACT:
A tensioner with a pulley rotatably mounted to a pivot arm that is biased with a spring, the pivot arm includes a leg extension for inhibiting movement of the arm with a damping member. A method for tensioning a synchronous toothed belt with the tensioner so as to substantially inhibit movements of the pivot arm as attributed to dynamic tension variations in a belt drive system while damping movements of the arm. A method for tensioning a synchronous belt drive with the tensioner by biasing a moveable pulley against the belt with a force sufficient to limit the amplitudes of resonance tension variations and damping the biasing of the pulley to prevent substantially most cyclic movements of the pivot arm while simultaneously accommodating thermal changes in drive length.
REFERENCES:
patent: 4077272 (1978-03-01), Busso
patent: 4144772 (1979-03-01), Brackin et al.
patent: 4299584 (1981-11-01), Sproul
patent: 4500303 (1985-02-01), Sermersheim et al.
patent: 4883446 (1989-11-01), Mitchell et al.
SAE Technical Paper Series, "Analysis of Synchronous Belt Vibration in Automotive Valve Train"; Mar. 4, 1988.
Otremba Jerzy
Sajczvk Andrzej
Thomey Henry W.
Bui Thuy M.
Castleman, Jr. C. H.
Gates Power Drive Products, Inc.
Isaac J. L.
Oberg H. W.
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