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Patent Searching and Data


Title:
RACK BAR BLANK MATERIAL, RACK BAR, RACK BAR BLANK MATERIAL MANUFACTURING METHOD, AND RACK BAR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/078276
Kind Code:
A1
Abstract:
A rack bar blank material (10) includes a rack portion (14) configured to mesh with a pinion in an end side of a hollow shaft material in an axial direction than the rack portion, and an end portion (12) which is provided closer to the end side of the hollow shaft material than the rack portion. The end portion (12) has a diameter which is larger than that of a minimum circle embracing a section of the rack portion (14) which is perpendicular to the axial direction and which is equal to that of a shaft portion (13) at the other end side of the shaft material in the axial direction. The invention ruether relates to a rack bar, a rack bar blank manufacturing method and a rack bar manufacturing method.

Inventors:
YAMAWAKI TAKASHI (JP)
AOKI KENICHI (JP)
Application Number:
JP2018/038720
Publication Date:
April 25, 2019
Filing Date:
October 17, 2018
Export Citation:
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Assignee:
NETUREN CO LTD (JP)
International Classes:
B21K1/76; B62D3/12; B62D5/04; F16H55/26; F16H25/22
Domestic Patent References:
WO2006099661A12006-09-28
WO2016152146A12016-09-29
Foreign References:
US6706127B12004-03-16
DE102008000427A12009-09-03
DE102012011509A12013-12-12
JP2003183737A2003-07-03
JP2016030271A2016-03-07
Attorney, Agent or Firm:
KOH-EI PATENT FIRM, P.C. (JP)
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