Title:
PIPE JOINT
Document Type and Number:
WIPO Patent Application WO/2018/230503
Kind Code:
A1
Abstract:
In order to enable even those without the knowledge or experience of a worker, supervisor, or the like to easily confirm the tightened state of pipes visually, by touch, or the like immediately after pipe connection work or when time has elapsed after the connection has been completed, the present invention is provided with: a nipple (1) having an insertion part (1a) that is inserted into a pipe (B) and faces the inner surface (B1) of the pipe in the radial direction; a tightening member (2) that is provided so as to be movable in the axial direction with respect to the outer surface (B2)of the pipe into which the insertion part of the nipple has been inserted; and a display member (3) that is provided so as to be sandwiched between the nipple and the tightening member in the axial direction. The tightening member has a pressing part (2b) that is formed such that the outer surface of the pipe is pressed in the radial direction toward the insertion part in conjunction with movement toward the nipple, and the display member has a deformation part (3D) that undergoes deformation in the axial direction or the radial direction in conjunction with the movement of the tightening member toward the nipple.
Inventors:
MIYAZAKI OSAMU (JP)
FUJIMORI HIROSHI (JP)
FUJIMORI HIROSHI (JP)
Application Number:
PCT/JP2018/022227
Publication Date:
December 20, 2018
Filing Date:
June 11, 2018
Export Citation:
Assignee:
TOYOX KK (JP)
International Classes:
F16L33/22; F16L19/02
Foreign References:
| JP2006329214A | 2006-12-07 | |||
| JP2013519848A | 2013-05-30 | |||
| JPH0359586U | 1991-06-12 | |||
| JP2010216492A | 2010-09-30 | |||
| JP5879368B2 | 2016-03-08 |
Other References:
See also references of EP 3640515A4
Attorney, Agent or Firm:
EICHI PATENT & TRADEMARK CORP. (JP)
Download PDF: