Title:
JOINT AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/164773
Kind Code:
A1
Abstract:
An internal pipe section (15) and an external pipe section (16) that form an insertion space for a resin pipe (11) are integrally formed in a joint main body (13). Two fitting grooves (17) are disposed in the outer peripheral surface of the internal pipe section (15). Two seal members (18) maintaining water-tightness between the resin pipe (11) inserted into the insertion space and the internal pipe section (15) are fitted, one into each fitting groove (17). A pair of visual inspection windows (25) for visual inspection from the outside of the fitting grooves (17) and the seal members (18) fitted into the fitting grooves (17) are opened into the external pipe section (16). These visual inspection windows (25) are disposed at mutually facing positions.
Inventors:
HAYASHI NOBUHIKO (JP)
NAKAMURA KOICHI (JP)
OKITA MASAHIRO (JP)
NAKAMURA KOICHI (JP)
OKITA MASAHIRO (JP)
Application Number:
PCT/JP2011/077426
Publication Date:
December 06, 2012
Filing Date:
November 28, 2011
Export Citation:
Assignee:
ONDA MFG CO LTD (JP)
HAYASHI NOBUHIKO (JP)
NAKAMURA KOICHI (JP)
OKITA MASAHIRO (JP)
HAYASHI NOBUHIKO (JP)
NAKAMURA KOICHI (JP)
OKITA MASAHIRO (JP)
International Classes:
F16L21/02; B29C45/44; F16L21/08
Foreign References:
| JP2005048916A | 2005-02-24 | |||
| JP2008095899A | 2008-04-24 | |||
| JP2006207675A | 2006-08-10 | |||
| JP2007155106A | 2007-06-21 |
Other References:
See also references of EP 2716952A4
None
None
Attorney, Agent or Firm:
ONDA, Hironori et al. (JP)
Hironori Onda (JP)
Hironori Onda (JP)
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Claims: