Title:
スリーブ、およびそれを備えた継手
Document Type and Number:
Japanese Patent JP7245636
Kind Code:
B2
Abstract:
A sleeve, a cylindrical member for connecting a tube to a tubular body of a fitting, includes a first peripheral wall end portion facing a peripheral wall end portion of the tubular body, and a second peripheral wall end portion pressed into an open end of the tube. The first peripheral wall end portion includes either an annular protrusion or groove. The annular protrusion is pressed into an annular groove in the peripheral wall end portion of the tubular body. The annular groove allows an annular protrusion axially projecting from the peripheral wall end portion of the tubular body to be pressed thereinto. The second peripheral wall end portion includes a bulge portion to expand the diameter of the open end of the tube. An outer periphery of the first peripheral wall end portion includes a flange to axially face the peripheral wall end portion of the tubular body.
Inventors:
Kiyotaka Omae
Masashi Toya
Atsushi Nakano
Masashi Toya
Atsushi Nakano
Application Number:
JP2018224631A
Publication Date:
March 24, 2023
Filing Date:
November 30, 2018
Export Citation:
Assignee:
Nippon Pillar Industry Co., Ltd.
International Classes:
F16L19/02; F16L19/04; F16L47/06
Domestic Patent References:
| JP5883907B1 | ||||
| JP11257572A |
Foreign References:
| FR2336623A1 |
Attorney, Agent or Firm:
Suzue Shoji
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