Title:
PIPE JOINT AND METHOD FOR JOINING PRESSING RING AND PIPE
Document Type and Number:
WIPO Patent Application WO/2022/097585
Kind Code:
A1
Abstract:
Provided is a pipe joint in which: a seal member insertion space 14 is formed between a first tapered surface 8 of a receiving port 5 and an outer circumference of an insertion port 3; a seal member 15 is inserted into the seal member insertion space 14; a pressing ring 17 which pushes the seal member 15 into the seal member insertion space 14 is externally fitted to the insertion port 3, wherein the seal member 15 has a bulb part 26 on one end section thereof, a guide part 29 which guides the bulb part 26 from an opening end surface 16 of the receiving port 5 toward the seal member insertion space 14 is formed on the inner circumference of the receiving port 5, the guide part 29 has a second tapered surface 30, and the inclination angle of the second tapered surface 30 is greater than the inclination angle of the first tapered surface 8.
Inventors:
TANAKA RYUNOSUKE (JP)
ODA KEITA (JP)
KISHI SHOZO (JP)
ODA KEITA (JP)
KISHI SHOZO (JP)
Application Number:
PCT/JP2021/040119
Publication Date:
May 12, 2022
Filing Date:
October 29, 2021
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
F16L21/04
Foreign References:
| JP2017180472A | 2017-10-05 | |||
| JPS59217090A | 1984-12-07 | |||
| JP2014005868A | 2014-01-16 | |||
| JPH09144962A | 1997-06-03 | |||
| JP2003222276A | 2003-08-08 | |||
| JPH0643470U | 1994-06-10 | |||
| JP2010286110A | 2010-12-24 |
Other References:
See also references of EP 4239237A4
Attorney, Agent or Firm:
MORIMOTO INT'L PATENT OFFICE (JP)
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