Mitsuboshi Belting Ltd.

Isao Ideguchi

Masakuni Yoshida

Norihito Suzuki

Hiroaki Ikegami

Shunsuke Isoe

This helically toothed belt power transmitting device () has: a toothed belt () having a plurality of teeth () tilted relative to the width direction of the belt; a drive pulley; and a driven pulley. The width of the helically toothed belt () is 1 mm to 20 mm, inclusive. The core () of the toothed belt () is a twisted cord containing high-strength glass fibers or carbon fibers and has a diameter of 0.2 mm to 0.9 mm, inclusive. The compressibility of the teeth () of the toothed belt () compressed by the grooves of the drive pulley and the driven pulley is 0% to 5%, inclusive.

Helically toothed belt power transmitting device

The present invention relates to a toothed belt containing tooth parts that are disposed at predetermined intervals along a belt longitudinal direction, a cord, and a back side that has the cord embedded therein, in which the cord contains a Lang-twisted glass fiber, an adhesion treatment layer, and an overcoat treatment layer, the overcoat treatment layer is formed on a surface of the adhesion treatment layer, the back side is composed of a rubber composition, and the rubber composition contains from 5 parts by mass to 20 parts by mass of a plasticizer based on 100 parts by mass of a rubber component.

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Hyogo, Japan

Isao Ideguchi