JPS56154302A - Manufacturing method of steel rim - Google Patents

Manufacturing method of steel rim

Info

Publication number
JPS56154302A
JPS56154302A JP3898881A JP3898881A JPS56154302A JP S56154302 A JPS56154302 A JP S56154302A JP 3898881 A JP3898881 A JP 3898881A JP 3898881 A JP3898881 A JP 3898881A JP S56154302 A JPS56154302 A JP S56154302A
Authority
JP
Japan
Prior art keywords
shaped
core material
roll
bending
holding
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.)
Pending
Application number
JP3898881A
Other languages
Japanese (ja)
Inventor
Kazuo Imamura
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.)
DAIEI KOGYO CO Ltd
Daido Kogyo Co Ltd
Original Assignee
DAIEI KOGYO CO Ltd
Daido Kogyo 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 DAIEI KOGYO CO Ltd, Daido Kogyo Co Ltd filed Critical DAIEI KOGYO CO Ltd
Priority to JP3898881A priority Critical patent/JPS56154302A/en
Publication of JPS56154302A publication Critical patent/JPS56154302A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent wrinkling in the bending process when an autocycle steel rim is formed in a compound roll, by applying a roll-bending the process while holding core material within a U-shaped flange.
CONSTITUTION: Fixed core material 46 fixed on the base of a shaping device is inserted into the U-shaped part of a central flange part 23 of a U-shaped section shaped in the preceding process, and the flange part is transferred to a shaping roll of the succeeding stage while holding the core material 46 in the U-shaped part and subjected to further shaping. Then, a steel 21 is welded 28 and 32 in the area of drop part 23. After the drop part 24 is shaped, the flange is sent to a final stage roll-bending machine, and given an annular bending process while holding the core material 46 between. After the final bending process is finished, the core material 46 is dranw out to hollow the central flange part 23. This construction enables the process of a compound roll to be carried out without allowing generation of wrinkles.
COPYRIGHT: (C)1981,JPO&Japio
JP3898881A 1981-03-17 1981-03-17 Manufacturing method of steel rim Pending JPS56154302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3898881A JPS56154302A (en) 1981-03-17 1981-03-17 Manufacturing method of steel rim

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3898881A JPS56154302A (en) 1981-03-17 1981-03-17 Manufacturing method of steel rim

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10676177A Division JPS5442704A (en) 1977-09-07 1977-09-07 Steel rim and manufacturing method of the same

Publications (1)

Publication Number Publication Date
JPS56154302A true JPS56154302A (en) 1981-11-28

Family

ID=12540516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3898881A Pending JPS56154302A (en) 1981-03-17 1981-03-17 Manufacturing method of steel rim

Country Status (1)

Country Link
JP (1) JPS56154302A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126702U (en) * 1983-02-15 1984-08-25 金井　宏之 automotive wheels
US5499864A (en) * 1993-06-16 1996-03-19 Klein Bicycle Corporation Bicycle wheel rims

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59126702U (en) * 1983-02-15 1984-08-25 金井　宏之 automotive wheels
US5499864A (en) * 1993-06-16 1996-03-19 Klein Bicycle Corporation Bicycle wheel rims

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