DE3366171D1 - Method for the manufacture of front fork of single unit type for bicycles from center butted ferrous tubular material - Google Patents

Method for the manufacture of front fork of single unit type for bicycles from center butted ferrous tubular material

Info

Publication number
DE3366171D1
DE3366171D1 DE8383101399T DE3366171T DE3366171D1 DE 3366171 D1 DE3366171 D1 DE 3366171D1 DE 8383101399 T DE8383101399 T DE 8383101399T DE 3366171 T DE3366171 T DE 3366171T DE 3366171 D1 DE3366171 D1 DE 3366171D1
Authority
DE
Germany
Prior art keywords
bicycles
butted
manufacture
center
single unit
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.)
Expired
Application number
DE8383101399T
Other languages
German (de)
Inventor
Isao Kimura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3366171D1 publication Critical patent/DE3366171D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
    • B21D35/006—Blanks having varying thickness, e.g. tailored blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/86—Making other particular articles other parts for bicycles or motorcycles
DE8383101399T 1982-02-15 1983-02-14 Method for the manufacture of front fork of single unit type for bicycles from center butted ferrous tubular material Expired DE3366171D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2120082A JPS58138525A (en) 1982-02-15 1982-02-15 Method for manufacturing one body system front fork material from central butted blank pipe

Publications (1)

Publication Number Publication Date
DE3366171D1 true DE3366171D1 (en) 1986-10-23

Family

ID=12048327

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383101399T Expired DE3366171D1 (en) 1982-02-15 1983-02-14 Method for the manufacture of front fork of single unit type for bicycles from center butted ferrous tubular material

Country Status (3)

Country Link
EP (1) EP0086480B1 (en)
JP (1) JPS58138525A (en)
DE (1) DE3366171D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103082A1 (en) * 1991-02-01 1992-08-27 Eichelberg & Co Gmbh H D METHOD FOR THE HYDROSTATIC FORMING OF HOLLOW BODIES FROM COLD FORMABLE METAL AND DEVICE FOR IMPLEMENTING THE METHOD
US9579709B2 (en) * 2015-03-20 2017-02-28 Alex Global Technology, Inc. Method for manufacturing bicycle front fork having wheel clamping base

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE129875C (en) *
FR477835A (en) * 1914-07-01 1915-11-03 Furan Atel Du Manufacturing process of fork heads for cycles and motorcycles
JPS517153B2 (en) * 1971-12-06 1976-03-05
US4051704A (en) * 1975-11-19 1977-10-04 Senkichiro Kimura Method for the manufacture of an ornamental head lug of the single unit type for use in bicycles
JPS6016855B2 (en) * 1979-09-27 1985-04-27 勲 木村 Hydraulic bulge forming method for integral front fork material for bicycles
DE3021481C2 (en) * 1980-06-05 1983-04-21 Mannesmann AG, 4000 Düsseldorf Method and device for the production of pipes

Also Published As

Publication number Publication date
EP0086480A3 (en) 1984-03-21
EP0086480A2 (en) 1983-08-24
JPS58138525A (en) 1983-08-17
EP0086480B1 (en) 1986-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee