Shaft for steering device, method of manufacturing shaft for steering device, and electric power steering device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11541450
APP PUB NO 20200290113A1
SERIAL NO

16496596

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To provide a method of manufacturing a shaft for a steering device, the shaft including a spline shaft part to be coupled with an input shaft, a stopper part to be coupled with an output shaft, and an intermediate shaft part that couples the spline shaft part with the stopper part. The method includes: a step of forming a hole part recessed in an axial direction from one end of a pillar-shaped material by forging; and a step of pressing the material in which the hole part has been formed into a die to perform drawing in a radial direction on a portion of the material at which the spline shaft part and the intermediate shaft part are formed, and prolonging a length along the axial direction of the hole part at the same time by forging.

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Patent Owner(s)

Patent OwnerAddress
NSK LTDSHINAGAWA-KU TOKYO 141-8560

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suehiro, Tatsuya Gunma, JP 3 5
Yamada, Kazuya Gunma, JP 78 414
Yasuda, Kaname Gunma, JP 14 61

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