| 摘要 |
PROBLEM TO BE SOLVED: To solve problems at the time of the power failure caused by natural disaster and the like that the operation of an elevator driven by the commercial power from an electric power company, is limited to a rescue operation by a battery and the like, which causes passengers' fears. SOLUTION: A traction device and a fuel battery are loaded on a car, and the fuel battery is utilized as a power supply means of the traction device, whereby the operation is not limited even in a self-operating elevator in power failure. |
