JPS566746A - Working method of coupling - Google Patents
Working method of couplingInfo
- Publication number
- JPS566746A JPS566746A JP8309479A JP8309479A JPS566746A JP S566746 A JPS566746 A JP S566746A JP 8309479 A JP8309479 A JP 8309479A JP 8309479 A JP8309479 A JP 8309479A JP S566746 A JPS566746 A JP S566746A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- flat plate
- blank
- coupling
- blank flat
- 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
- Forging (AREA)
Abstract
PURPOSE: To enable the continous production of couplins without any material loss by forming a blank flat plate which has beforehand been applied with tapping and the special threading corrugating, into pipe form.
CONSTITUTION: A flat part having undergone piercing and tapping 6 is formed in approximately right half portion of a blank flat plate and a corrugated part consisting of crest parts having thread parts 11 and through parts 9 is formed by rolling in the left half portion. Further, this blank is formed into a blank flat plate C cut with recesses 14... at one end and raised parts 13... on ther other. Thence, this blank flat plate C is bent to pipe form and the above-mentioned raised parts 13 are fitted into the recesses 14. These yield the coupling consisting of the thread- less coupling pipe part A and the threaded coupling pipe part B.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8309479A JPS566746A (en) | 1979-06-29 | 1979-06-29 | Working method of coupling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8309479A JPS566746A (en) | 1979-06-29 | 1979-06-29 | Working method of coupling |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS566746A true JPS566746A (en) | 1981-01-23 |
Family
ID=13792583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8309479A Pending JPS566746A (en) | 1979-06-29 | 1979-06-29 | Working method of coupling |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS566746A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020074580A (en) * | 2001-03-20 | 2002-10-04 | (주)동서엠.티 | Manufacturing method of strip steel pipe |
KR100949042B1 (en) | 2009-07-16 | 2010-03-24 | 강인혜 | A step bolt of telegraph pole |
-
1979
- 1979-06-29 JP JP8309479A patent/JPS566746A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020074580A (en) * | 2001-03-20 | 2002-10-04 | (주)동서엠.티 | Manufacturing method of strip steel pipe |
KR100949042B1 (en) | 2009-07-16 | 2010-03-24 | 강인혜 | A step bolt of telegraph pole |
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