Coil spring

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United States of America Patent

PATENT NO 10808784
APP PUB NO 20190063536A1
SERIAL NO

16086812

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The coil spring according to the present invention is a coil spring that is formed by spirally winding a wire rod and that includes a core that is elastically deformable and a reinforced fiber layer including reinforcing fibers wound around an outer circumference of the core and a thermoset resin that firmly adheres the reinforcing fibers to one another, wherein, in at least a part of a surface layer of the reinforced fiber layer, a content percentage of the reinforcing fibers on an inner circumferential side of the coil spring is larger than a content percentage of the reinforcing fibers on an outer circumferential side of the coil spring.

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Patent Owner(s)

  • NHK SPRING CO. LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imamura, Masaru Yokohama, JP 9 64
Konomi, Kazuhiko Yokohama, JP 8 23
Maruichi, Toshiaki Yokohama, JP 2 2
Ono, Yoshiki Yokohama, JP 55 340
Sano, Takamichi Yokohama, JP 4 5

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