发明名称 SECURITY DOOR DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a security door device capable of changing capacitance when one comes close to or is in contact with a security door, and issuing an alarm when the capacitance reaches more than a predetermined capacitance value. SOLUTION: The security door device 1 includes the security door 6 having conductive layers 4 on both surfaces of a resin layer 3 having an electric insulating property, and a cover material 5 having the electric insulating property laminated and fixed so as to be in contact with each of the conductive layers 4, a terminal 8 which is linked to each of the conductive layers 4 of the security door and is connected to a capacitance detector 7. The capacitance is changed when the one comes close to or is in contact with the security door 6, and an alarm signal is transmitted when the capacitance reaches more than the predetermined capacitance value. Thereby an intruder is prevented.
申请公布号 JP2002352341(A) 申请公布日期 2002.12.06
申请号 JP20010159606 申请日期 2001.05.28
申请人 MITSUBOSHI BELTING LTD 发明人 NAGAYASU SUSUMU
分类号 E06B7/28;G08B13/22;H01H36/00;(IPC1-7):G08B13/22 主分类号 E06B7/28
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