| 摘要 |
A box-type fireproof wall unfolded in a fire is provided to secure a visual field by increasing the height only in a fire and to prevent a flame from spreading and flowing in through the windows. The box-type fireproof wall unfolded in a fire is composed of first, second, third, and fourth boxes(13,14,15,16). The fireproof wall is kept at the same height of the first box by putting the second, third, and fourth boxes into the first box in order before a control box(1) is operated. The control box is operated in a fire and the second, third, and fourth boxes are expanded except for the first box fixed on the floor. The first box is formed in a rectangle having a wide bottom side and a narrow upside having a hole.
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