Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2012/026513
Kind Code:
A1
Abstract:
Provided is a pipe joint configured in such a manner that a claw section (21) which bites into the outer peripheral surface of a second pipe (120) comes out of the outer peripheral surface when an engagement body (20) is no longer pressed by a pressing bolt (30), that the engagement body (20) is not lost during conveyance, etc., and that the tilt range of the pipe joint when an external force acting in the direction in which the second pipe (120) comes out of the first pipe (110) is applied is sufficient.
The pipe joint is provided with: an annular pressing ring (10) fitted over the insertion end (121) of the second pipe (120); the engagement body (20) having the claw section (21) biting into the outer peripheral surface of the second pipe (120); a pressing bolt (30) for causing the engagement body (20) to protrude from the inner peripheral surface of the pressing ring (10); and an elastic member (40) for holding the engagement body (20). The pressing ring (10) comprises a pressing section (11) and an action section (13) which is provided with a space section (13d). The elastic member (40) is stretchable and is adapted to pull in the engagement body (20) along the sloped surface (13f) of the space section (13d), retract the claw section (21) of the engagement body (20) into the space section (13d), and cause the claw section (21) to protrude from the inside of the space section (13d).
Inventors:
SATO TOSHIYUKI (JP)
YOKOYAMA TAIHEI (JP)
YOKOYAMA TAIHEI (JP)
Application Number:
PCT/JP2011/069131
Publication Date:
March 01, 2012
Filing Date:
August 25, 2011
Export Citation:
Assignee:
SUIKEN CO LTD (JP)
SATO TOSHIYUKI (JP)
YOKOYAMA TAIHEI (JP)
SATO TOSHIYUKI (JP)
YOKOYAMA TAIHEI (JP)
International Classes:
F16L21/04; F16L21/08
Foreign References:
JP2004150579A | 2004-05-27 | |||
JPS4898713U | 1973-11-21 | |||
JPH01106690U | 1989-07-18 | |||
JPS548721U | 1979-01-20 | |||
JPH10281366A | 1998-10-23 | |||
JP2000304177A | 2000-11-02 | |||
JPS54182410U | 1979-12-24 | |||
JPS63178687U | 1988-11-18 |
Attorney, Agent or Firm:
FUJIMOTO, NOBORU (JP)
Noboru Fujimoto (JP)
Noboru Fujimoto (JP)
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Claims: