Title:
METALLIC PIPE JOINT STRUCTURE AND JOINING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/042596
Kind Code:
A1
Abstract:
Provided is a joint structure capable of simply connecting together the pipe ends of metallic pipes without the use of auxiliary materials or connecting members, and capable of keeping down the work time and work cost. The joint structure of the present invention is characterized by being a structure wherein a mating section is formed by the insertion, into an end section of one of the metallic pipes, of the end section of the other metallic pipe, and an external force is applied to the mating section to crimp the mating section. By applying the external force to the mating section with the inner metallic pipe inserted in the outer metallic pipe, bumpy sections are formed in the outer metallic pipe and the inner metallic pipe at the mating section.
Inventors:
NISHIJIMA SHINNOSUKE (JP)
NISHIO KATSUHIDE (JP)
NISHIO KATSUHIDE (JP)
Application Number:
PCT/JP2014/074376
Publication Date:
March 24, 2016
Filing Date:
September 16, 2014
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
F16L13/14
Foreign References:
| JP2013066911A | 2013-04-18 | |||
| JPS3633941Y1 | ||||
| JPS59226788A | 1984-12-19 | |||
| US3071993A | 1963-01-08 | |||
| EP0134566A2 | 1985-03-20 | |||
| JPH09257164A | 1997-09-30 | |||
| JPS60143984U | 1985-09-24 | |||
| JP2014181733A | 2014-09-29 | |||
| JPS4997918A | 1974-09-17 |
Attorney, Agent or Firm:
NAYA Hiromitsu et al. (JP)
Yohiro Naya (JP)
Yohiro Naya (JP)
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