Flexible belt and relative driving system

Details Flexible belt and relative driving system Flexible belt and relative driving system

1989-04-27

1990-06-05

Bui, Thuy M.

Endless belt power transmission systems or components

Friction drive belt

474268, F16G 110

Patent

active

049310305

ABSTRACT:
An elastically extensible flexible belt is provided which comprises an annular body of elastomeric material in which is embedded a plurality of elongated elements arranged along a surface corresponding to the position of the neutral axis of the belt. The belt is characterized in that each elongated element, at 1/10 of its ultimate tensile stress, has an elongation value able to balance a shrinkage value of the innermost surface of the belt, ranging between two limit values .epsilon..sub.1 .epsilon..sub.2 corresponding to the bending of the belt according to two pre-established curvatures. The first curvature is represented by a circumference whose radius r.sub.1 is equal to 60% of the radius R of the circumferential development of the annular body in correspondence of the elongated elements and the second curvature is represented by a circumference whose radius r.sub.2 corresponds to 35% of the radius R of the circumferential development of the annular body.

REFERENCES:
patent: 2255884 (1941-09-01), Hedgpeth
patent: 2273200 (1942-02-01), Hoff
patent: 2792319 (1957-05-01), Fihe
patent: 3160193 (1964-12-01), Baggett
patent: 4571230 (1986-02-01), Woodland
patent: 4822324 (1989-04-01), Georget

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