Fan-folded belt

Details Fan-folded belt Fan-folded belt

1987-05-18

1988-09-06

Bui, Thuy M.

Endless belt power transmission systems or components

Friction drive belt

Including plural interconnected members each having a drive...

F16G 122

Patent

active

047689994

ABSTRACT:
A fan-folded drive belt is comprised of a folded metal belt maintained in a continuous loop by a plurality of continuous metal bands maintained in tension and supported in a band slot on the folded metal belt. The folded metal belt is made from a single strip of metal which is formed by machining processes, such as stamping, and then accordion folded to produce individual drive members arranged with long and short drive leg members being adjacent. The adjacent drive members are connected at either the inner or outer extremes. The drive belt transfers drive forces between spaced pulleys or sheaves through frictional engagement therewith. During such driving, the outer portion of the belt is deflected or flexes as the belt travels around the pulleys. This causes high stress levels to be induced within the individual drive members. To reduce the stress level, the various points on the folded belt, a portion of material disposed outwardly from the continuous metal bands is removed at the fold line. This portion of the folded belt is also made transversely wider and preferably slightly longer in the outward direction.

REFERENCES:
patent: 4540388 (1985-09-01), Cataldo et al.
patent: 4581002 (1986-04-01), Cataldo

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