Toothed belt
AssigneeUnitta Company
InventorsShigehiro Isshiki, Tsutomu Tokunaga, Yoshitaka Sato
Life of this patent
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Abstract
Toothed belt comprises teeth and bottoms which are alternately formed at one surface of the toothed rubber layer of the toothed belt. A fabric is provided at the outer surface of the teeth and the bottoms. A back rubber layer is integrally provided at the other surface of the toothed rubber layer. A plurality of cords are interposed at the interface between the toothed rubber layer and the back rubber layer. A large number of modified microfibers are intermixed throughout the toothed rubber layer. The modified microfibers consist of a copolymer of polyolefin and nylon fiber. The modified microfibers are oriented in the length direction of the toothed belt as a whole.
Claims19
A toothed belt comprising:
- a toothed rubber layer that has teeth and bottoms formed alternately on one surface;
- a back rubber layer integrally joined to another surface of said toothed rubber layer;
- and
- a plurality of cords interposed at the interface between said toothed rubber layer and said back rubber layer, extending along the length direction of the toothed belt, and arrayed along the width direction;
- a large number of modified nylon microfibers being intermixed and regularly oriented in the toothed rubber layer, the modified nylon microfibers being made of a copolymer obtained by graft polymerization of a polyolefin with fine denier nylon fibers.
Dependencies are inferred from the claim text.