Title:
インナーリング、及び管継手
Document Type and Number:
Japanese Patent JP7349409
Kind Code:
B2
Abstract:
An inner ring of a pipe joint includes a first tapered surface formed at one axial end portion of an inner circumferential surface such that a diameter thereof gradually increases from another axial side toward one axial end thereof in a state before a bulge portion is press-fitted into an end portion of a tube. A diameter increase starting point of the first tapered surface is located in a range from a deformation starting point, which serves as a starting point from which an inner circumferential surface is deformed due to the bulge portion receiving external force from the tube when the bulge portion is press-fitted into the end portion of the tube, to a position, on the inner circumferential surface, corresponding to one axial end of an outer circumferential surface of a body portion.
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| JP2022017782 | INNER RING AND PIPE JOINT |
| WO/2006/118770 | HYDRAULIC FLANGE CONNECTION |
| JP2019143735 | PIPING CONNECTING DEVICE |
Inventors:
黒▲崎▼ 歩
Shingo Higuchi
Issei Teshima
Shingo Higuchi
Issei Teshima
Application Number:
JP2020100307A
Publication Date:
September 22, 2023
Filing Date:
June 09, 2020
Export Citation:
Assignee:
Nippon Pillar Industry Co., Ltd.
International Classes:
F16L19/05; F16J15/10; F16L33/22
Domestic Patent References:
| JP2018168947A |
Foreign References:
| WO2000028254A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Suncrest International Patent Office