DISPLACEMENT ABSORBING PIPE JOINT - NEW TOKYO INTERNAT AIRPORT AUT

Title:

DISPLACEMENT ABSORBING PIPE JOINT

Document Type and Number:

WIPO Patent Application WO/2001/051842

Kind Code:

A1

Abstract:

A pipe joint capable of preventing a damage to a pipe body disposed through the end faces of structural bodies connected adjacently to each other by allowing the positional relationship of the structural bodies disposed connectedly to each other to be displaced by an expansion and contraction due to a temperature change or an external stress and allowing the end parts of the pipe body buried in two structural bodies having connection end faces displacing relatively to each other to be communicatingly connected to each other at the connection end faces, comprising a fixed unit (30) fixedly buried in the connection end face of one structural body and a movable unit (50) displaceably supported by the fixed unit along the surface direction of the connection end face, wherein the pipe body inside one structural body is connected to the fixed unit, the other pipe body inside the other structural body is connected to the movable unit, both pipe bodies are held in the fixed unit in the state of communicating with each other, and the connection end faces of both structural bodies are displaced, relatively to each other, in the surface direction, whereby a stress applied to both pipe bodies can be absorbed and removed by the displacement operation, in the surface direction, of the movable unit displaceable relative to the fixed unit.

Inventors:

ABE YOICHI (JP)
KAMETA SHOICHI (JP)
HAGIWARA KATSUHIKO (JP)
KAWABATA SHUNJI (JP)
OSHIMA TAKAFUMI (JP)

Application Number:

PCT/JP2001/000117

Publication Date:

July 19, 2001

Filing Date:

January 12, 2001

Export Citation:

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Assignee:

NEW TOKYO INTERNAT AIRPORT AUT (JP)
ABE YOICHI (JP)
KAMETA SHOICHI (JP)
HAGIWARA KATSUHIKO (JP)
KAWABATA SHUNJI (JP)
OSHIMA TAKAFUMI (JP)

International Classes:

F16L27/00; H02G3/38; E01C11/04; (IPC1-7): F16L27/00

Foreign References:

JPH1061852A	1998-03-06
JPS5899591A	1983-06-13
JPS356066Y1

Other References: