JPS56136246A - Frame for bicycle - Google Patents
Frame for bicycleInfo
- Publication number
- JPS56136246A JPS56136246A JP3900880A JP3900880A JPS56136246A JP S56136246 A JPS56136246 A JP S56136246A JP 3900880 A JP3900880 A JP 3900880A JP 3900880 A JP3900880 A JP 3900880A JP S56136246 A JPS56136246 A JP S56136246A
- Authority
- JP
- Japan
- Prior art keywords
- bulged
- pipe
- parts
- bearing holding
- head part
- 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
Links
Landscapes
- Motorcycle And Bicycle Frame (AREA)
Abstract
PURPOSE: To improve strength and production efficiency by forming upper and lower bearing holding parts by the use of a blank material pipe provided with bulged parts and connecting a main frame thereto.
CONSTITUTION: A blank material pipe A which is provided with bulged parts 2, 3 at the top and bottom in one end part of the pipe is used. The top plate part of the upper bulged part 2 is punched with a drill 5, and an upper cup 7 is press-fitted into this hole 6, whereby the upper bearing holding part of the head part is formed. The bottom plate part of the lower bulged part 3 is likewise punched and a lower cup 9 is press-fitted into this hole 8, whereby the lower bearing holding part of the head part is formed. The pressed end part 4 of the pipe A on these upper and lower bulged parts 2, 3 sides is cut to form a head part 10. With the straight part 1 of the pipe A on the opposite side connecting to this head part 10 as a main frame, the frame for bicycles is integrally formed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3900880A JPS5933050B2 (en) | 1980-03-28 | 1980-03-28 | motorcycle frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3900880A JPS5933050B2 (en) | 1980-03-28 | 1980-03-28 | motorcycle frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56136246A true JPS56136246A (en) | 1981-10-24 |
JPS5933050B2 JPS5933050B2 (en) | 1984-08-13 |
Family
ID=12541072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3900880A Expired JPS5933050B2 (en) | 1980-03-28 | 1980-03-28 | motorcycle frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5933050B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140983U (en) * | 1983-03-11 | 1984-09-20 | スズキ株式会社 | Motorcycle frame head pipe |
JPS6076487A (en) * | 1983-09-30 | 1985-04-30 | 宮田工業株式会社 | Manufacture of frame for two-wheel barrow |
US4541648A (en) * | 1982-04-08 | 1985-09-17 | Bridgestone Cycle Co., Ltd. | Bicycle frame |
JPS6150086U (en) * | 1985-09-12 | 1986-04-04 |
-
1980
- 1980-03-28 JP JP3900880A patent/JPS5933050B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541648A (en) * | 1982-04-08 | 1985-09-17 | Bridgestone Cycle Co., Ltd. | Bicycle frame |
JPS59140983U (en) * | 1983-03-11 | 1984-09-20 | スズキ株式会社 | Motorcycle frame head pipe |
JPS6076487A (en) * | 1983-09-30 | 1985-04-30 | 宮田工業株式会社 | Manufacture of frame for two-wheel barrow |
JPH0315595B2 (en) * | 1983-09-30 | 1991-03-01 | Myata Kogyo Kk | |
JPS6150086U (en) * | 1985-09-12 | 1986-04-04 | ||
JPS6228543Y2 (en) * | 1985-09-12 | 1987-07-22 |
Also Published As
Publication number | Publication date |
---|---|
JPS5933050B2 (en) | 1984-08-13 |
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