Title:
トンネル換気装置
Document Type and Number:
Japanese Patent JP7213489
Kind Code:
B2
Abstract:
To propose a tunnel ventilation device that allows the air ducts and lighting to be easily extended or relocated according to the progress of tunnel construction.SOLUTION: A tunnel ventilation device 1 comprises an air duct 2 arranged at a top or shoulder of a tunnel T and a light emitting body 3 installed in the air duct 2. The air duct 2 is formed by connecting a plurality of tubular bodies 21, and an electric wire 4 for supplying electric power to the light emitting body 3 is wired in the tubular body 21. At the end of the electric wire 4, a connector 41 connected to the electric wire 4 wired to another tubular body 21 is installed.SELECTED DRAWING: Figure 2
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Inventors:
Osamu Maruyama
Masataka Uchida
Masanori Wakayama
Nishimura Akira
Youichi Asayama
Masataka Uchida
Masanori Wakayama
Nishimura Akira
Youichi Asayama
Application Number:
JP2019078109A
Publication Date:
January 27, 2023
Filing Date:
April 16, 2019
Export Citation:
Assignee:
Taisei Corporation
Ryuuki Engineering Co., Ltd.
Ryuuki Engineering Co., Ltd.
International Classes:
E21F1/04; E21F17/02
Domestic Patent References:
| JP2001323800A | ||||
| JP2013072626A | ||||
| JP2003050044A | ||||
| JP2014035967A | ||||
| JP2013099989A |
Attorney, Agent or Firm:
Patent Attorney Corporation Isono International Patent and Trademark Office
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