| 摘要 |
PURPOSE:To enable an elevator door to open even when the voltage of a storage battery has lowered in the case of the rescue-operation of an elevator using the storage battery as a power source during the failure of electric supply. CONSTITUTION:In the case of the failure of electric supply of a commercial power source 1, an elevator is rescue-operated by a storage battery 9 in a rescue-operating device 12. When a voltage detection circuit 21 detects the lowering of the voltage of the storage battery 9, a contact 22 is closed to connect a storage battery 23 loaded on a cage 13 to a door control device 14. A door control power source voltage thereby increases to surely close a door 13a for rescuing passengers. |
