| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire preventive shutter capable of previously preventing a clamping accident of the fire preventive shutter. SOLUTION: The fire preventive shutter control device 5 is provided with an electric motor 11 for opening and closing a shutter curtain 1, a motor detection means 37 for receiving a closing signal and controlling an automatic closing device 13 lowering the shutter curtain 1 by the own weight and detecting the operation of the motor 11, an obstacle detection means 7 for detecting the obstacle of the shutter curtain 1, and a control means 25. In the case that the control means 25 receives a closing signal, the shutter curtain 1 is lowered by the motor 11, when the obstacle detection signal is received, the motor 11 is stopped, and in the case that the motor 11 does not operate, the closing signal is transmitted to the automatic closing device 13 to lower the shutter curtain 1 by the own weight.
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