Apparatus and method for manufacturing rack bar

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12053816
SERIAL NO

17287652

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Abstract

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An apparatus for manufacturing a rack bar includes a pre-forming machine forming a flattened portion on an outer peripheral surface of a hollow shaft member, a teeth forming machine forming rack teeth on the flattened portion, a heat treatment machine quenching the rack teeth, a first conveying machine carrying the shaft member into and from the pre-forming machine, a second conveying machine carrying the shaft member into and from the teeth forming machine, and a third conveying machine carrying the shaft member into and from the heat treatment machine. The first conveying machine, the second conveying machine, and the third conveying machine hold one end of the shaft member from a radially inner side of the shaft member. The apparatus of the rack bar are suitable for manufacturing a relatively short hollow rack bar having rack teeth formed over substantially an entire length of a shaft member.

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Patent Owner(s)

Patent OwnerAddress
NETUREN CO LTDTOKYO 141-8639

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sunaga, Norimasa Tokyo, JP 5 9
Suzuki, Ryosuke Tokyo, JP 84 179

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