JPS6440117A - Pipe bending method - Google Patents
Pipe bending methodInfo
- Publication number
- JPS6440117A JPS6440117A JP19369587A JP19369587A JPS6440117A JP S6440117 A JPS6440117 A JP S6440117A JP 19369587 A JP19369587 A JP 19369587A JP 19369587 A JP19369587 A JP 19369587A JP S6440117 A JPS6440117 A JP S6440117A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- spring
- bending
- prevented
- plate
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE:To improve bending quality and working environment by inserting a plate coil spring into a bending position on a straight pipe and performing bonding. CONSTITUTION:The plate coil spring 12 is inserted into the bending site on the straight pipe 11. The spring plate width (w) is made larger than the plate thickness (t) and the following conditions are desired to be set: d1MIN<=d2MAX (d1; inner diameter of blank pipe, d2; outer diameter of spring) and P1=t (P1; spring pitch at the time of largest compression). When the pipe 11 is bent under these conditions, in an inner circumferential position giving the maximum bending, each coil of the spring 12 is bonded to each other and creases are prevented from occurring. The flattening of the bent pipe 11 is prevented by strengthening of rigidity of the spring strip. The bending quality of the pipe 11 is improved, accordingly, and, in addition, since the operation to fill the sand in the pipe is eliminated, dust is prevented from being scattered and the working environment is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19369587A JPS6440117A (en) | 1987-08-04 | 1987-08-04 | Pipe bending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19369587A JPS6440117A (en) | 1987-08-04 | 1987-08-04 | Pipe bending method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6440117A true JPS6440117A (en) | 1989-02-10 |
Family
ID=16312242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19369587A Pending JPS6440117A (en) | 1987-08-04 | 1987-08-04 | Pipe bending method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6440117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02220718A (en) * | 1989-02-23 | 1990-09-03 | Suga Kogyo Kk | Method and tool for bending of lead pipe |
| JPH0593619U (en) * | 1993-04-14 | 1993-12-21 | 須賀工業株式会社 | Tool for bending plumbing |
| WO2010084788A1 (en) * | 2009-01-23 | 2010-07-29 | 日新製鋼株式会社 | Spinning method |
| CN108941287A (en) * | 2018-06-22 | 2018-12-07 | 德清钰金铝业有限公司 | A kind of aluminum profile arc bending technique |
-
1987
- 1987-08-04 JP JP19369587A patent/JPS6440117A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02220718A (en) * | 1989-02-23 | 1990-09-03 | Suga Kogyo Kk | Method and tool for bending of lead pipe |
| JPH0593619U (en) * | 1993-04-14 | 1993-12-21 | 須賀工業株式会社 | Tool for bending plumbing |
| WO2010084788A1 (en) * | 2009-01-23 | 2010-07-29 | 日新製鋼株式会社 | Spinning method |
| JP2010167467A (en) * | 2009-01-23 | 2010-08-05 | Nisshin Steel Co Ltd | Spinning method |
| US8635898B2 (en) | 2009-01-23 | 2014-01-28 | Nisshin Steel Co., Ltd. | Spinning method for forming a diameter reduced portion |
| TWI511810B (en) * | 2009-01-23 | 2015-12-11 | Nisshin Steel Co Ltd | Spinning method for forming pipe end |
| CN108941287A (en) * | 2018-06-22 | 2018-12-07 | 德清钰金铝业有限公司 | A kind of aluminum profile arc bending technique |
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