JPS55123044A - Rack shaft - Google Patents

Rack shaft

Info

Publication number
JPS55123044A
JPS55123044A JP3065479A JP3065479A JPS55123044A JP S55123044 A JPS55123044 A JP S55123044A JP 3065479 A JP3065479 A JP 3065479A JP 3065479 A JP3065479 A JP 3065479A JP S55123044 A JPS55123044 A JP S55123044A
Authority
JP
Japan
Prior art keywords
rack
flat
tooth
rack shaft
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3065479A
Other languages
Japanese (ja)
Other versions
JPS6128858B2 (en
Inventor
Yoshio Tobisawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jidosha Kiki Co Ltd
Original Assignee
Jidosha Kiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jidosha Kiki Co Ltd filed Critical Jidosha Kiki Co Ltd
Priority to JP3065479A priority Critical patent/JPS55123044A/en
Publication of JPS55123044A publication Critical patent/JPS55123044A/en
Publication of JPS6128858B2 publication Critical patent/JPS6128858B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the total weitht of a rack shaft without sacrificing its strength, by making flat surfaces with rack tooth on the external surface of a hollow bar through plastic forming.
CONSTITUTION: A rack shaft 3 is fit loose in a case 2 of a rack-and-pinion steering gear 1, rack tooth 4 being engaged with a pinion 5 interlocked with a steering handl. For producing the rack shaft 3, a hollow round bar undergoes plastic working such as forging to form a flat surface 8a on which the rack tooth 4 is to be formed and another flat 8b on the opposite side. Since the hollow section 9 of the bar is deformed similar to the external form, the thickness of flat 8a is, not reduced and since the rack tooth 4 is formed on the thick flat the mechanical strength of the tooth 4 and the rack shaft itself is not sacrificed, while the weight is reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP3065479A 1979-03-16 1979-03-16 Rack shaft Granted JPS55123044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3065479A JPS55123044A (en) 1979-03-16 1979-03-16 Rack shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3065479A JPS55123044A (en) 1979-03-16 1979-03-16 Rack shaft

Publications (2)

Publication Number Publication Date
JPS55123044A true JPS55123044A (en) 1980-09-22
JPS6128858B2 JPS6128858B2 (en) 1986-07-03

Family

ID=12309764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3065479A Granted JPS55123044A (en) 1979-03-16 1979-03-16 Rack shaft

Country Status (1)

Country Link
JP (1) JPS55123044A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59206259A (en) * 1983-04-28 1984-11-22 ベンデイベリカ・エセ・ア Electric type power steering gear
JPS603172U (en) * 1983-06-22 1985-01-11 トヨタ自動車株式会社 Rack bar of rack and pinion type steering gear
CN110446648A (en) * 2017-03-16 2019-11-12 高周波热錬株式会社 The manufacturing method of rack bar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096022A (en) * 1934-06-20 1937-10-19 Auto Specialties Mfg Co Lifting jack
US4133221A (en) * 1977-06-23 1979-01-09 Trw, Inc. Rack gear and method of making the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096022A (en) * 1934-06-20 1937-10-19 Auto Specialties Mfg Co Lifting jack
US4133221A (en) * 1977-06-23 1979-01-09 Trw, Inc. Rack gear and method of making the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59206259A (en) * 1983-04-28 1984-11-22 ベンデイベリカ・エセ・ア Electric type power steering gear
US4572314A (en) * 1983-04-28 1986-02-25 Bendiberica, S.A. Electrical power steering mechanism of the rack and pinion type for motor vehicles
JPH0530666B2 (en) * 1983-04-28 1993-05-10 Bendiberica Sa
JPS603172U (en) * 1983-06-22 1985-01-11 トヨタ自動車株式会社 Rack bar of rack and pinion type steering gear
CN110446648A (en) * 2017-03-16 2019-11-12 高周波热錬株式会社 The manufacturing method of rack bar
CN110446648B (en) * 2017-03-16 2023-12-12 高周波热錬株式会社 Method for manufacturing rack bar

Also Published As

Publication number Publication date
JPS6128858B2 (en) 1986-07-03

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