| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fire door locking-unlocking device capable of reducing labor required for an operation test, and capable of also improving safety in an operation time.SOLUTION: A fire door locking-unlocking device 1 comprises a locking mechanism displaceable in any state of a locking state and a release state, that is, the locking mechanism for locking a fire door 2 by locking a hook shaft in the locking state and unlocking the fire door 2 by releasing the hook shaft in the release state, a solenoid mechanism for displacing the locking mechanism to the release state from the locking state by operating by receiving an unlocking request signal for requesting unlocking of the fire door 2, a first pilot lamp, a second pilot lamp and a third pilot lamp for executing output on an operation state of the function of the fire door locking-unlocking device 1.</p> |
