Title:
防火戸
Document Type and Number:
Japanese Patent JP7152259
Kind Code:
B2
Abstract:
To improve fire resistance and productivity of right and left door end stiles to be butted with each other when adopting a concave-convex fit structure in a joint part of a draw type fire door.SOLUTION: In a draw type fire door 1, a first door end side stile 21 and a second door end side stile 31 are made of stile members 2e of the same shape provided with vertically elongated recessed grooves 22 and 32 on opposing surfaces of door ends. A projecting member 40 projected from the recessed groove 22 of the first door end stile 21 toward the door end side of a first door body 20 is attached to the recessed groove 22 of the first door end stile 21, and when the door ends of the first door body 20 and a second door body 30 are butted against each other, the projecting member 40 enters into the recessed groove 32 of the second door side stile 31.SELECTED DRAWING: Figure 4
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Inventors:
Akira Imai
Yuki Koyama
Yoko Shioda
Yuki Koyama
Yoko Shioda
Application Number:
JP2018203674A
Publication Date:
October 12, 2022
Filing Date:
October 30, 2018
Export Citation:
Assignee:
Showa Front Co., Ltd.
International Classes:
E06B5/16; A62C2/06
Domestic Patent References:
| JP2000160955A | ||||
| JP2007162379A | ||||
| JP201630955A |
Attorney, Agent or Firm:
Tetsuo Hirose
Yuko Suzuki
Ikuo Hirose
Yuko Suzuki
Ikuo Hirose