Title:
ステアリング装置の転舵軸の製造方法
Document Type and Number:
Japanese Patent JP7109216
Kind Code:
B2
Abstract:
A method for manufacturing a steering shaft of a steering device includes: a reduced-diameter section forming process in which a second-phase member is formed from a first-phase member by forming a reduced-diameter section in the first-phase member; and a ball screw groove forming process in which a third-phase member is formed from the second-phase member by forming a ball screw groove in the second-phase member by rolling.
Inventors:
Keisuke Kitamura
Maruyama Tatsuyoshi
Maruyama Tatsuyoshi
Application Number:
JP2018043774A
Publication Date:
July 29, 2022
Filing Date:
March 12, 2018
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
B21H3/04; B21H5/02
Domestic Patent References:
| JP2005074509A | ||||
| JP2015178329A | ||||
| JP10095356A | ||||
| JP2009233705A |
Attorney, Agent or Firm:
Polar Patent Attorney Corporation
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