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
1988-05-17
1989-03-21
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...
474135, F16H 712
Patent
active
048139157
ABSTRACT:
In a tightening device for belts and the like, in particular on motor vehicle engines, having a friction bushing and a helical spring cooperating with the friction bushing, it is provided, in order to attain good cushioning and damping of low-amplitude vibrations and shocks with a simple constructional design, that the wall of the annular gap is embodied deviating from a circular cross section and correspondingly resting against the helical spring in such a way that the pressing force of the helical spring on the friction bushing is reduced or rescinded in an intermediate position established as the basic position in the operating state.
REFERENCES:
patent: 4473362 (1984-09-01), Thomey et al.
patent: 4583962 (1986-04-01), Bytzek et al.
patent: 4661087 (1987-04-01), Henderson
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