Power transmission chain pin and manufacture method thereof

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United States of America Patent

PATENT NO 9308575
APP PUB NO 20120090290A1
SERIAL NO

13336941

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Abstract

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A method of manufacturing a power transmission chain pin, which connects links arranged in a chain width direction of a power transmission chain, includes a rough sectional shape formation step of drawing a wire rod so that a section thereof is formed in a substantially oval shape and a rough end portion shape formation step of cutting a continuous bar-like member which has been subjected to the drawing work into a predetermined length so that an end surface thereof has a predetermined angle with respect to an axial direction. A final sectional shape and a final end portion shape of the power transmission chain pin are formed by a cold forging work to the bar-like member cut into the predetermined length, which is a final shape formation step.

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Patent Owner(s)

Patent OwnerAddress
JTEKT CORPORATION1-1 ASAHI-MACHI KARIYA-SHI AICHI-KEN 448-8652

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miura, Yoshihisa Yamatokoriyama, JP 27 118

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