Reinforcing cord for rubber reinforcement and rubber product including the same

a technology of reinforcing cords and rubber products, applied in the direction of yarns, textiles and papermaking, etc., can solve the problems of deterioration of performance, separation between reinforcing fibers and rubber matrix, deterioration of strength, etc., and achieve excellent dimensional stability, high bending fatigue resistance, and high strength. the effect of elasticity
US20070144134A1Inactive Publication Date: 2007-06-28NIPPON SHEET GLASS CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
NIPPON SHEET GLASS CO LTD
Publication Date
2007-06-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

A reinforcing cord for rubber reinforcement of the present invention includes reinforcing fibers. The reinforcing fibers include polyarylate fibers 11 and a plurality of outer strands 12 that are arranged around the polyarylate fibers 11. The plurality of outer strands 12 include fibers other than polyarylate fibers. The use of this reinforcing cord for rubber reinforcement makes it possible to obtain a reinforcing cord for rubber reinforcement having high strength, elasticity, and bending fatigue resistance, and a rubber product including the same.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a reinforcing cord for rubber reinforcement and a rubber product reinforced with a reinforcing cord for rubber reinforcement. BACKGROUND ART

[0002] Reinforcing fibers such as glass fibers and aramid fibers have been used as reinforcing materials for rubber products such as rubber belts, tires, etc. However, these rubber products are subjected to bending stress repeatedly and thereby the performance thereof tends to deteriorate due to bending fatigue. This tends to cause separation between reinforcing fibers and a rubber matrix, or deterioration in strength due to fraying of the reinforcing fibers. On the other hand, a toothed rubber belt that is used for a camshaft drive of an internal-combustion engine of an automobile requires high dimensional stability in order to maintain appropriate timing. Furthermore, rubber belts that are used for not only the camshaft drive but also an auxiliary drive of, for instance, an injection pum...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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