| 摘要 |
PURPOSE:To obtain a safety device of voice input type operated effectively in a relatively extended space by using a wireless microphone to input an emergency voice to a voice recognizing device. CONSTITUTION:An elevator circuit consists of a switch 1 for rise, a relay 2 for rise, a self-hold contact 2a closed by the relay 2, a switch 3 for fall, a relay 4 for fall, a self-hold contact closed by the relay 4, an emergency stop switch 5, a safety switch group 6, a voice recognizing device 7, a relay 8 driven by the device 7, a contact 8b opened by the relay 8, and a wireless microphone 9. The emergency voice, which a worker putting on the wireless microphone 9 makes when the encounters a danger during inspection in an elevating path, is detected by the voice recognizing device 7. The device 7 drives the relay to open the contact 8b, and the elevator is stopped momently, thus making the worker safe. |
