JPS5666331A - Manufacture of threadless coupling - Google Patents
Manufacture of threadless couplingInfo
- Publication number
- JPS5666331A JPS5666331A JP14183679A JP14183679A JPS5666331A JP S5666331 A JPS5666331 A JP S5666331A JP 14183679 A JP14183679 A JP 14183679A JP 14183679 A JP14183679 A JP 14183679A JP S5666331 A JPS5666331 A JP S5666331A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- tongue
- rectangular
- pass
- groove
- 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
- 230000008878 coupling Effects 0.000 title abstract 5
- 238000010168 coupling process Methods 0.000 title abstract 5
- 238000005859 coupling reaction Methods 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000011162 core material Substances 0.000 abstract 1
Abstract
PURPOSE: To manufacture the threadless coupling, by forming the mutually fittable tongue and groove on both side edges of the blank sheet of a rectangular shape, by caulking the plate spring, inserted into plural through holes, so as to fix to the blank sheet, and by bending this blank sheet into a pipe shape so as to engage edges by said tongue and groove.
CONSTITUTION: The hoop of the flat sheet 1 is uncoiled and developed into a flat sheet; the side edges of this flat sheet are chamfered by the roll 2 provided with the tapered surfaces 2a, 2a in the first pass; and many rectangular through holes 4 are blanked by the punch 3 and dies in the second pass. In the third pass, the rectangular plate springs 5 are inserted into said through holes 4 and are caulked to the sheet; in the fourth pass, the sheet is cut off so as to form the wide tongue 6 in the top edge, and hereby, the rectangular blank sheet 8, with the rear edge provided with the groove 7 formed by blanking the tongue 6, is prepared. This rectangular blank sheet 8 is bent around the cylinder 9 as the core material, and the tongue 6 is fitted to the groove 7 on both edges, and both edges are set with each other; hereby, the threadless coupling is obtained. Then, the tip of the plate spring 5 is forced to penetrate into the pipes to be jointed after inserting into this coupling; hereby, two pipes are simply jointed without using the threaded coupling.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14183679A JPS5666331A (en) | 1979-10-31 | 1979-10-31 | Manufacture of threadless coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14183679A JPS5666331A (en) | 1979-10-31 | 1979-10-31 | Manufacture of threadless coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5666331A true JPS5666331A (en) | 1981-06-04 |
Family
ID=15301262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14183679A Pending JPS5666331A (en) | 1979-10-31 | 1979-10-31 | Manufacture of threadless coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5666331A (en) |
-
1979
- 1979-10-31 JP JP14183679A patent/JPS5666331A/en active Pending
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