| 摘要 |
PROBLEM TO BE SOLVED: To use a fire resistant sheet at a low cost and with high execution by housing to wind a shutter curtain comprising a plurality of fire resistant sheet connected by a fire resistant hook-and-loop fastener and a fastener. SOLUTION: A silica cloth and a cloth woven by a stainless steel thread are used as fire resistant sheets 2a-2c. In the case, the upper ends of the fire resistant sheets 2a-2b are housed to be wound around a shaft 3, and a curtain 1 is lowered with a dead weight by a weight 4 such as a flat plate arranged on the lower part of the shutter curtain 1. It has a function preventing turning-up and deflection due to wind pressure generated during a fire. Next, in the case where the fire resistant sheets 2a-2c are connected, for instance, it has structure for mutually and tightly connecting male and female hook-and- loop fasteners provided on each end overlapped on the face fastener respectively. Thereby the connection of the adjacent fire resistant sheets 2a-2c can be simply executed in a short time, and its large area can be inexpensively obtained.
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