| 摘要 |
PROBLEM TO BE SOLVED: To provide a shutter apparatus capable of more reliably closing a shutter curtain when a closing signal is given off depending on manual operation input.SOLUTION: A shutter apparatus includes: a control part that outputs a control signal when a closing signal given off depending on a manual operation is input a normal condition; a power source part that outputs a power source voltage when at least the closing signal of the closing signal and the control signal is input; and a closing device that closes a shutter curtain depending on the output of the power source voltage by the power source part.SELECTED DRAWING: Figure 2 |
