Friction Transmission Belt
AssigneeMitsuboshi Belting Ltd.
InventorsHisato Ishiguro, Takuya Tomoda
Life of this patent
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Abstract
A frictional power transmission belt is provided, containing an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt, in which the adhesion rubber layer is formed of a first vulcanized rubber composition containing a rubber component and a filler, the filler contains subsantially no silica and contains 30 parts by mass or more of carbon black based on 100 parts by mass of the rubber component, and the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition containing a rubber component and silica.
Claims9
A frictional power transmission belt comprising an adhesion rubber layer in contact with at least a portion of a tension member extending in a longitudinal direction of the belt,
- wherein the adhesion rubber layer is formed of a first vulcanized rubber composition comprising a rubber component and a filler,
- the filler contains 30 parts by mass or more of carbon black and from 0.1 to 15 parts by mass of silica based on 100 parts by mass of the rubber component, and
- the tension member has, on a surface thereof, an overcoat layer formed of a second vulcanized rubber composition comprising a rubber component and silica.
Dependencies are inferred from the claim text.