JPS56154302A - Manufacturing method of steel rim - Google Patents
Manufacturing method of steel rimInfo
- 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
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
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)
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 |
-
1981
- 1981-03-17 JP JP3898881A patent/JPS56154302A/en active Pending
Cited By (2)
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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