| 摘要 |
PROBLEM TO BE SOLVED: To prevent fire spread and discharge of smoke by preventing ignition from a receiver at the time of breakout of a fire. SOLUTION: In a receiver 1 for managing entering and leaving, an outdoor receiver 11 and an indoor receiver 21 are arranged facing each other inside and outside of a fire-preventing door 100 via the through-hole 100a of the fire-preventing door 100. The outdoor receiver 11 and the indoor receiver 21 are provided with metallic back plates 12 and 22, respectively, where at least put-through ports 12c and 22c for putting a cable 41 for electrically connecting the receivers through are formed. The back plates 12 and 22 are fixed via metal fittings 31 from the inside/outside of the fire-preventing door 100 while the put-through port 12c on the outdoor side and the put-through port 22c on the indoor side are deviated alternately. At the metal fittings 31, put-through ports 31c for leading the cable 41 out between the put-through ports 12c and 22c of the back plates 12 and 22 are formed. COPYRIGHT: (C)2007,JPO&INPIT
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