Title:
貫通スリーブ、および貫通孔の耐火構造
Document Type and Number:
Japanese Patent JP6825959
Kind Code:
B2
Abstract:
To provide a through sleeve capable of easily preventing a fire from spreading through a through hole.SOLUTION: A through sleeve 4 is installed in a through hole 1a penetrating a fire-resisting partition wall 1, and a wiring/piping material 2 is run through. This through sleeve 4 comprises a cylindrical sleeve body 6 formed of a synthetic resin material including a thermal expansion material. The through sleeve 4 has, at both ends, a connection port 7 to which a corrugated pipe 3 having the wiring/piping material 2 run through can be connected in a falling-stopped state. The connection port 7 is composed of a receiving port 7a into which an end of the corrugated pipe 3 is inserted, and an engagement claw 7b which engages an outer surface of the corrugated pipe 3 is provided at the receiving port 7a.SELECTED DRAWING: Figure 1
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Inventors:
Shinya Tani
Application Number:
JP2017065787A
Publication Date:
February 03, 2021
Filing Date:
March 29, 2017
Export Citation:
Assignee:
Mirai Industry Co., Ltd.
International Classes:
F16L5/04; A62C3/16
Domestic Patent References:
| JP2010065806A | ||||
| JP2008185197A | ||||
| JP2006274643A | ||||
| JP2002005342A | ||||
| JP2008180068A |
Attorney, Agent or Firm:
Koji Hirose