Title:
管装置
Document Type and Number:
Japanese Patent JP7402636
Kind Code:
B2
Abstract:
To provide a pipe device and a corrugated double pipe capable of suppressing axial movement while having function performance.SOLUTION: A corrugated double pipe 50 constituting a pipe device 10 has a two-layer structure consisting of a cylindrical inner layer 51 made of a non-foamed synthetic resin material and a cylindrical outer layer 52 made of a foamed synthetic resin material that is in close contact with the outer peripheral surface of the inner layer 51 in the entire axial direction. The corrugated double pipe 50 has annular recesses 53 and annular protrusions 54 that are alternately provided along the axial direction. A faucet box constituting the pipe device 10 has a pipe connecting part 20 into which the axial end part of the corrugated double pipe 50 is inserted, and a locking projection 23 that enters the recess 53 of the corrugated double pipe 50. When the corrugated double pipe 50 is pulled in the extraction direction with respect to the faucet box with the locking projection 23 locked to the protrusion 54, the outer layer 52 has a hardness that does not release the locking projection 23.SELECTED DRAWING: Figure 5
Inventors:
Takeyo Furuta
Application Number:
JP2019148326A
Publication Date:
December 21, 2023
Filing Date:
August 13, 2019
Export Citation:
Assignee:
Mirai Industry Co., Ltd.
International Classes:
F16L33/00; E03C1/02; F16L11/118; F16L59/153
Domestic Patent References:
| JP62171591A | ||||
| JP2002106759A | ||||
| JP2000240889A | ||||
| JP2002372170A | ||||
| JP60064390U | ||||
| JP2008202743A |
Foreign References:
| WO2017191735A1 | ||||
| US6173995 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda