Title:
引戸式の防火戸
Document Type and Number:
Japanese Patent JP7317658
Kind Code:
B2
Abstract:
To improve a fireproof performance in employing material having a lower fusion point than that of steel material of a case body 15 of a transom 4.SOLUTION: A sliding type fire door 1 comprises a slidable door body 2 in a transverse direction, and a transom 4 arranged at an upper part of the door body 2. The transom 4 comprises a longitudinal case body 15 in a transverse direction for forming an installation space S inside and a rail part 6 is arranged for hanging and sliding the door body 2 in the installation space S. The case body 15 is made of a material having a lower fusion point than that of a steel material, inside of the case body 15 a first reinforcement material 20 is arranged at a position spaced away backward from a front surface of the case body 15. The first reinforcement material 20 forms a front surface of the installment space S by having a front surface part 20b longitudinal in a transverse direction and the rail part 6 is mounted to the case body 15 via the first reinforcement material 20.SELECTED DRAWING: Figure 3
Inventors:
Akira Imai
Yuki Koyama
Yoko Shioda
Hiranabe Miku
Yuki Koyama
Yoko Shioda
Hiranabe Miku
Application Number:
JP2019185801A
Publication Date:
July 31, 2023
Filing Date:
October 09, 2019
Export Citation:
Assignee:
Showa Front Co., Ltd.
International Classes:
E06B5/16; E05D15/06; E06B3/46
Domestic Patent References:
| JP201531099A | ||||
| JP201586526A | ||||
| JP2016199884A | ||||
| JP6156469U | ||||
| JP5717374U |
Foreign References:
| WO2017014193A1 |
Attorney, Agent or Firm:
Tetsuo Hirose
Yuko Suzuki
Yuko Suzuki