Endless belt power transmission systems or components – Friction drive pulley or guide roll – Including plural – coaxial – circumferential belt-receiving...
Patent
1992-07-31
1994-08-16
Bui, Thuy M.
Endless belt power transmission systems or components
Friction drive pulley or guide roll
Including plural, coaxial, circumferential belt-receiving...
474157, F16H 700
Patent
active
053382641
ABSTRACT:
A sheave is provided with a compliant contact surface such that the sheave is suitable for use with a leaf chain in applications in which the leaf chain is subjected to more than simply a straight tensile pull. Since the sheave contact surface is compliant, any chain leaves that protrude inwardly against the sheave will embed themselves, thus allowing any non-protruding leaf edges to come into contact with the sheave and share the load. In a preferred embodiment, compliancy of the contact surface is obtained by providing a plurality of closely spaced parallel grooves on at least those parts of the contact surface that contact the chain.
REFERENCES:
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patent: 5170883 (1992-12-01), Ledet et al.
patent: 5224722 (1993-07-01), Kempf
Bui Thuy M.
Lift-U, division of Hogan Mfg., Inc.
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