Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2013/105287
Kind Code:
A1
Abstract:
Provided is a pipe joint which is configured so that the loss of rotational force applied by an electric working tool or a human is significantly reduced and so that fastening rings can be reduced in diameter by small torque. A pipe joint comprises: fastening rings (6) which are longitudinally wound over a predetermined central angle in the range from 360˚ to 480˚; a guide member which prevents the fastening rings (6) from falling over and which holds the fastening rings (6) so as to permit the fastening rings (6) to be reduced in diameter and deformed; a substantially triangular mountain-shaped toggle member (11) which is disposed so that, in a state in which a pipe is not connected, the toggle member (11) protrudes further outward in the radial direction than the fastening rings (6); and a bolt/nut joint (X) which moves the central top section of the toggle member (11) inward in the radial direction so as to reduce the height of the mountain of the toggle member (11). The fastening rings (6) have engagement claws (7) protruding outward in the radial direction. The pipe joint is configured so that, when the toggle member (11) moves inward in the radial direction, the toggle member (11) moves in the circumferential direction while the bottom ends of the toggle member (11) engage with the engagement claws (7), thereby reducing the diameter of the fastening rings (6).
Inventors:
TAKAHASHI KIYOKAZU (JP)
INOUE HIROSHI (JP)
MATSUSHITA YOUSUKE (JP)
TAKADA TAMOTSU (JP)
INOUE HIROSHI (JP)
MATSUSHITA YOUSUKE (JP)
TAKADA TAMOTSU (JP)
Application Number:
PCT/JP2012/064465
Publication Date:
July 18, 2013
Filing Date:
June 05, 2012
Export Citation:
Assignee:
HIGASHIO MECH CO LTD (JP)
TAKAHASHI KIYOKAZU (JP)
INOUE HIROSHI (JP)
MATSUSHITA YOUSUKE (JP)
TAKADA TAMOTSU (JP)
TAKAHASHI KIYOKAZU (JP)
INOUE HIROSHI (JP)
MATSUSHITA YOUSUKE (JP)
TAKADA TAMOTSU (JP)
International Classes:
F16L33/10; F16L33/02; F16L33/20
Foreign References:
| JPH10185049A | 1998-07-14 | |||
| JPS5023867Y1 | 1975-07-18 | |||
| JP2009287643A | 2009-12-10 | |||
| JP2009168167A | 2009-07-30 |
Other References:
See also references of EP 2803894A4
Attorney, Agent or Firm:
NAKATANI, TAKESHI (JP)
Takeshi Nakatani (JP)
Takeshi Nakatani (JP)
Download PDF:
Claims:
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