| 摘要 |
PROBLEM TO BE SOLVED: To surely supply electric power to a counter weight with high reliability. SOLUTION: A receiving means for receiving contactlessly the electric power from an electric power supply unit provided in an elevator shaft, an inverter and a motor are mounted on the counter weight, and the counter weight is driven to oppose the receiving means to the power supply unit based on a means for detecting positions of the power supply unit and the receiving means, and based on the positions detected by the means. |
