Friction drive belt

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8882621
SERIAL NO

13125918

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A friction drive belt includes: an adhesion rubber layer having a core wire embedded therein so as to form a helical pattern having a pitch in a lateral direction of the belt; a compression rubber layer provided on a surface of the adhesion rubber layer located on an inner side of the belt, and serving as a portion that is to contact pulleys, and a backing rubber layer provided on a surface of the adhesion rubber layer located on an outer side of the belt, and serving as a back portion of the belt. A ratio of tensile stress at 10% elongation of a rubber composition forming the adhesion rubber layer to that of a rubber composition forming the backing rubber layer is 1.77 or more, as measured in a longitudinal direction of the belt at an ambient temperature of 25° C. according to JIS K 6251.

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Patent Owner(s)

  • BANDO CHEMICAL INDUSTRIES, LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakashima, Eijiro Hyogo, JP 10 82
Okuno, Shigeki Hyogo, JP 12 154

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