| 摘要 |
PROBLEM TO BE SOLVED: To provide fire prevention equipment which hardly spreads damage caused by a fire. SOLUTION: This fire prevention equipment is arranged in a ventilation path 5 for circulating air between indoor and outdoor sides. The fire prevention equipment is equipped with a thermal-deformation member 55 which is extended upward by heat generated by the fire, and a shutter member 6 which abuts on the top surface of the ventilation path 5 by moving upward accompanied by the upward extension of the member 55. Even if a part of the member 55 is not extended by the heat, the whole of the shutter member 6 is moved upward by the extended part of the member 55 so as to be capable of abutting on the top surface of the ventilation path. COPYRIGHT: (C)2007,JPO&INPIT
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