Mitsuboshi Belting Ltd.

Norihito Suzuki

Masakuni Yoshida

Isao Ideguchi

A toothed belt includes: a back portion; at least one tension member embedded in the back portion; tooth portions arranged at a predetermined interval along a belt longitudinal direction on one surface of the back portion; and a tooth cloth covering a surface of the tooth portion and a part of the one surface of the back portion, in which the at least one tension member is a twisted cord including a high-strength glass fiber filament, a tooth pitch, a diameter of the at least one tension member, and a ratio of a thickness of the back portion to a thickness of the toothed belt are in a specific range, the tooth portion is constituted of a rubber composition, a hardness of the rubber composition at 23° C. is 73° or more and 83° or less, and the tooth portion has a specific shape.

Toothed belt and belt transmission mechanism

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.

Growing community of inventors

Hyogo, Japan

Norihito Suzuki