Title:
管継手、空調設備用ドレン配管構造、及び管継手製造方法
Document Type and Number:
Japanese Patent JP7389604
Kind Code:
B2
Abstract:
To provide a pipe joint that can stably ensure high heat insulation performance, and to provide a drain piping structure for an air conditioning installation and a pipe joint manufacturing method.SOLUTION: An elbow type hollow pipe joint 100 includes: a bent pipe part 110 formed into a cylindrical shape; a first pipe end 120 and a second pipe end 130 connected to the bent pipe part 110; and a hollow layer 110T formed in the bent pipe part 110. The first pipe end 120 and the second pipe end 130 are formed to have thicknesses t120 and t130 that satisfy 0.04×t1≤t120 and t130<0.8×t1, where t1 represents a thickness of the bent pipe part 110.SELECTED DRAWING: Figure 2
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| JPH0740791 | [Name of invention] Vacuum insulated pipe joint structure |
| WO/2015/052078 | HEAT-PROTECTIVE INSERT FOR A FUEL LINE |
Inventors:
Hiroaki Hanaki
Application Number:
JP2019179707A
Publication Date:
November 30, 2023
Filing Date:
September 30, 2019
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
F16L59/18; B29C45/00; B29C45/14; B29C45/26; B29C45/44; F16L59/22; F24F13/22
Domestic Patent References:
| JP2018141505A | ||||
| JP2001193111A | ||||
| JP2019052716A | ||||
| JP2019044841A | ||||
| JP2016023667A | ||||
| JP2001047466A | ||||
| JP2000168853A | ||||
| JP10067032A |
Foreign References:
| KR20030029086A | ||||
| KR200307688Y1 | ||||
| CN202791097U | ||||
| KR100527179B1 | ||||
| KR200310352Y1 |
Attorney, Agent or Firm:
Kazuzumi Nishizawa
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi
Yuichiro Kawagoe
Makiko Otsuki
Hiroshi Yamaguchi