Transmission belt with anistropic composite material having an e

Details Transmission belt with anistropic composite material having an e Transmission belt with anistropic composite material having an e

1988-11-25

1990-06-26

Bui, Thuy M.

Endless belt power transmission systems or components

Friction drive belt

Including discrete embedded fibers

428295, F16G 110

Patent

active

049368141

ABSTRACT:
A composite material for a transmission belt includes an elastomer matrix forming a basic component of the material. There is included a cross-linking system of the elastomer matrix and at least one fiber reinforcement including fibers with a maximum length of about 30 mm. The fibers are disposed throughout the elastomer matrix and are generally oriented to extend in a first direction of reinforcement. There is at least one thermosetting resin in the elastomer matrix. The elastomer matrix which includes the cross-linking system, the fiber reinforcement and the thermosetting resin has a first equivalent tensile modulus which is calculated for a hypothetical elongation of 100% in the first direction and a second equivalent tensile modulus which is calculated for an actual or hypothetical elongation of 100% in a second direction which is perpendicular to the first direction. A second equivalent tensile modulus is at least 6 MPa. Anisotropy ratio of the first equivalent tensile modulus and the second equivalent tensile modulus is at least 6. The elastomer matrix forming the basic component is in at least one layer within the transmission belt which includes a longitudinal axis. The first direction of reinforcement of the at least one layer is perpendicular to the longitudinal axis.

REFERENCES:
patent: 4127039 (1978-11-01), Hollaway, Jr.
patent: 4571230 (1986-02-01), Woodland
patent: 4657526 (1987-04-01), Tangorra et al.
patent: 4681558 (1987-07-01), Rausch
patent: 4684569 (1987-08-01), McGee, Jr.

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