JPS5765456A - Rack of steering device of rack-pinion type - Google Patents

Rack of steering device of rack-pinion type

Info

Publication number
JPS5765456A
JPS5765456A JP13941980A JP13941980A JPS5765456A JP S5765456 A JPS5765456 A JP S5765456A JP 13941980 A JP13941980 A JP 13941980A JP 13941980 A JP13941980 A JP 13941980A JP S5765456 A JPS5765456 A JP S5765456A
Authority
JP
Japan
Prior art keywords
rack
tooth
sloped
face
groove
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
JP13941980A
Other languages
Japanese (ja)
Other versions
JPS6128859B2 (en
Inventor
Akifumi Horiie
Kou Koyama
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.)
NSK Ltd
Original Assignee
NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP13941980A priority Critical patent/JPS5765456A/en
Publication of JPS5765456A publication Critical patent/JPS5765456A/en
Publication of JPS6128859B2 publication Critical patent/JPS6128859B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B21K1/767—Toothed racks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Forging (AREA)

Abstract

PURPOSE: To prevent tooth parts of a rack forming metal mold from damage, in rack tooth grooved shape formed in both ends of a rack part, by specifically arranging dimensions of its tooth end groove width and sloped angle made by its outside sloped end surface and a plane crossing at a right angle with the axial line of a rack bar.
CONSTITUTION: A rack 11 is of such constitution that a rack part 13 is provided in a rack bar 12 here a plurality of rack teeth 14 are formed and their tooth end surfaces 15 are formed with a level parallel to an axial line 16 of the rack bar 12. Further an end part tooth groove 17 is formed axially in both end parts of the rack bar 12 in the rack part 13, comprising an outside sloped end face 18, end part tooth bottom face 19 and end part tooth face 20. Here tooth point groove width A of the tooth end groove 17 is arranged at least equal to or larger than tooth point groove width B of rack tooth shape 14, further a sloped angle θ, made by the outside sloped end face 18 of the end tooth groove 17 and a plane crossing at a right angle with the axial line 16 of the rack bar 12, is formed at least equal to or larger than a pressure angle (d) of the rack tooth shape 14.
COPYRIGHT: (C)1982,JPO&Japio
JP13941980A 1980-10-07 1980-10-07 Rack of steering device of rack-pinion type Granted JPS5765456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13941980A JPS5765456A (en) 1980-10-07 1980-10-07 Rack of steering device of rack-pinion type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13941980A JPS5765456A (en) 1980-10-07 1980-10-07 Rack of steering device of rack-pinion type

Publications (2)

Publication Number Publication Date
JPS5765456A true JPS5765456A (en) 1982-04-21
JPS6128859B2 JPS6128859B2 (en) 1986-07-03

Family

ID=15244767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13941980A Granted JPS5765456A (en) 1980-10-07 1980-10-07 Rack of steering device of rack-pinion type

Country Status (1)

Country Link
JP (1) JPS5765456A (en)

Also Published As

Publication number Publication date
JPS6128859B2 (en) 1986-07-03

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