Toothed belt of elastomeric material for reversible toothed belt

Details Toothed belt of elastomeric material for reversible toothed belt Toothed belt of elastomeric material for reversible toothed belt

1990-09-21

1991-08-20

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive belt

Drive surfaces on belt formed in or interconnected by...

474268, F16G 108

Patent

active

050410636

ABSTRACT:
A toothed belt where the crown surfaces of its teeth are to be disposed on the bases of gear wheel grooves is provided. In order to achieve a dampened, low-noise running-up of the toothed belt upon the gear wheel, as well as to achieve a free-of-play filling of the gear wheel grooves via the belt teeth in the direction of rotation as required for a reversible belt drive, embedded in the crown surface of each tooth belt is a crown piece made of a material that is elastically softer than the belt material. Viewed in the longitudinal cross-section of the belt, the crown piece extends essentially over the entire length of the crown surface of the belt tooth and protrudes from the crown surface in such a way that as the tooth runs up on the gear wheel, first the part of the curved outer side that protrudes the most strikes the base of the gear wheel groove, and subsequently this outer side is pressed flat against the groove by the belt tension. The inner side of the crown piece that is connected with the belt material is profiled and extends into the material of the belt tooth in such a way that the crown piece, when it spreads in the circumferential direction of the belt due to the radial compression, spreads the belt tooth out until both sides thereof contact the two sides of the gear wheel groove.

REFERENCES:
patent: 4695269 (1987-09-01), Tassone et al.
patent: 4838843 (1989-06-01), Westhoff
patent: 4846771 (1989-07-01), Kozachevsky et al.

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