摘要:
The present invention relates to a frictional power transmission belt having a frictional power transmission surface covered with a warp knitted fabric, in which the warp knitted fabric contains a water absorptive thread in a proportion of 30% by mass or more based on the total amount of threads constituting the warp knitted fabric and a wale direction of the warp knitted fabric is substantially parallel to a belt longitudinal direction.
摘要:
A V-ribbed belt (1), which comprises an extension layer (3) that constitutes a belt back surface, a compression layer (4) that is formed on one surface of the extension layer (3), and core wires (5) that are embedded between the extension layer (3) and the compression layer (4) and extend along the circumferential length direction of the belt, and in which multiple V-shaped rib parts (2) that extend along the circumferential length direction of the belt and serve as a friction conveying surface with a pulley are formed in the compression layer (4) and the friction conveying surface is covered with a knitted fabric (6), wherein: the knitted fabric (6) is knitted of a polyester-based composite yarn and a cellulose-based natural spun yarn; the polyester-based composite yarn is a bulk textured yarn; and the knitting ratio of the cellulose-based natural spun yarn is not less than the knitting ratio of the polyester-based composite yarn.
摘要:
The present invention relates to a frictional power transmission belt containing an extensible layer forming a belt back surface, a compressive rubber layer formed on one surface of the extensible layer and frictionally engaging at the lateral surface thereof with pulleys, and a tension member embedded between the extensible layer and the compressive rubber layer along the belt length direction, in which a surface of at least a part of the compressive rubber layer to be in contact with pulleys is coated with a fiber/resin mixture layer that contains a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature in a mixed state, and the heat-resistant fibers contain a fiber embedded so as to extend from the fiber/resin mixture layer to the compressive rubber layer.