V-belt of controlled extensibility and relative transmission

Details V-belt of controlled extensibility and relative transmission V-belt of controlled extensibility and relative transmission

1986-07-08

1987-11-24

Novosad, Stephen J.

Endless belt power transmission systems or components

Friction drive belt

Including plural superposed layers each having strands...

474263, F16G 508

Patent

active

047087021

ABSTRACT:
A V-belt (1) comprising at least three layers (2, 3, 4) of elastomeric material embedding discontinuous fibers (5, 6, 7); one of the layers (2) comprises fibers (5) directed transversally to the belt longitudinal direction and the two remaining layers (3, 4) comprise fibers (6, 7) mutually inclined in opposite direction with respect to the belt longitudinal direction X--X, the layers in which the fibers are inclined in the belt longitudinal direction having an equal extensibility. The three layers are in direct mutual contact and the belt is devoid of inextensible longitudinal reinforcement strands or the like. In some embodiments, the belt may be part of a two-pulley transmission, in particular for stepless speed change gears, where only one pulley is of the expanding type.

REFERENCES:
patent: 3416383 (1968-12-01), Jensen et al.
patent: 3616832 (1971-11-01), Takeoshima et al.
patent: 3992958 (1976-11-01), Bonnefon
patent: 4027545 (1977-06-01), White, Jr.
patent: 4127039 (1978-11-01), Hollaway, Jr.

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