Mitsuboshi Belting Ltd.

Shuhei Nishida

Yorifumi Hineno

Satoshi Shimoo

Takashi Nishio

The present invention relates to a wrapped V-belt including: a tension member layer including a tension member; a tension rubber layer laminated on the tension member layer at a belt outer peripheral side; a compression rubber layer laminated on the tension member layer at a belt inner peripheral side; and an outside cloth covering an entire outer surface of the belt, in which the compression rubber layer includes a first compression rubber layer laminated at the belt outer peripheral side and a second compression rubber layer laminated at the belt inner peripheral side, and the tension rubber layer has a rubber hardness that is higher than a rubber hardness of the second compression rubber layer and lower than a rubber hardness of the first compression rubber layer.

Wrapped V-belt

The present invention provides a friction transmission belt having a friction transmission surface having a rubber composition containing a plasticizer, the plasticizer forming a film on the friction transmission surface, a change in friction coefficient (&#x3bc;) with respect to a change in slipping velocity (V) indicated by a difference between a pulley speed and a belt speed (d&#x3bc;/dv) being 0 or a positive value in a dry state and a wet state.

Growing community of inventors

Kobe, Japan

Shuhei Nishida