Title:
遮炎断熱スチールドア
Document Type and Number:
Japanese Patent JP6498254
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a steel door having fireproof performance insusceptible to a heat-insulated structure of the steel door.SOLUTION: A steel door 1 includes: metallic peripheral frames 3, 4, 5 and 6; first and second metallic surface materials 7 and 8 that are fixed to the metallic peripheral frames 3, 4, 5 and 6; and core materials 20 and 21 that are infilled between the first and second metallic surface materials 7 and 8. Thermal-expansion and fire resistive members 9C, 9D, 9H, 9I, 9L and 9O are provided between a peripheral edge of the first metallic surface material 7 and a peripheral edge of the second metallic surface material 8, and the metallic peripheral frames 3, 4, 5 and 6.SELECTED DRAWING: Figure 12
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Inventors:
Hiroaki Ichiyanagi
Application Number:
JP2017209899A
Publication Date:
April 10, 2019
Filing Date:
October 31, 2017
Export Citation:
Assignee:
Sanwa Shutter Corporation
International Classes:
E06B5/16; E06B3/82
Domestic Patent References:
| JP2014034842A |
Attorney, Agent or Firm:
Shigeru Inaba