US 10,767,727 B2Granted

Toothed belt

AssigneeBando Chemical Industries, Ltd.

InventorsYasuhiko Yoshida, Atsushi Taga, Yoshitaka Meki, Eijiro Nakashima

Life of this patent

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Abstract

A toothed belt is provided with toothed portions arranged at a regular pitch in a belt length direction. A belt body is made of a rubber composition containing, as a main ingredient of a rubber component, ethylene-α-olefin elastomer having an ethylene content of 44% by mass to 66% by mass. A reinforcing fabric is adhered to a surface of the belt body on a toothed side, with a reinforcing fabric adhesion coat interposed between the reinforcing fabric and the belt body. The reinforcing fabric adhesion coat is made of a rubber composition containing hydrogenated nitrile-butadiene rubber as a main ingredient of a rubber component.

Claims16

Dependent claims

A toothed belt provided with toothed portions arranged at a regular pitch in a belt length direction, the toothed belt comprising:

a belt body made of a first rubber composition comprising:
as a main ingredient of a first rubber component, ethylene-α-olefin elastomer having an ethylene content of 44% by mass to 66% by mass;
and
as a reinforcing material of the first rubber component, carbon black being 50 parts by mass or more and 80 parts by mass or less with respect to 100 parts by mass of the first rubber component;
and
a reinforcing fabric adhered to a surface of the belt body on a toothed side, with a reinforcing fabric adhesion coat interposed between the belt body and the reinforcing fabric, the reinforcing fabric adhesion coat being made of at least a second rubber composition containing hydrogenated nitrile-butadiene rubber as a main ingredient of a second rubber component and carbon black as a reinforcing material.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/118,287Filed 30 Aug 2018 · continuation
Priority: JP 2016-06479629 Mar 2016
Published: US 2019/0011016 A110 Jan 2019
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

F16G 1/28
Driving-belts: with a contact surface of special shape, e.g. toothed
B32B 3/28
Characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or…
B32B 3/30
Characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or…
B32B 25/10
Layered products comprising a layer of natural or synthetic rubber: next to a fibrous or filamentary layer

Family

PCT/JP2017/000136Parent of this continuation · filed 5 Jan 2017
US 2019/0011016 A1Pre-grant publication · published 10 Jan 2019
US 10,767,727 B2This patent

From the US filing history. Foreign family members aren’t listed.

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