| 摘要 |
PROBLEM TO BE SOLVED: To simplify an installation or the like in a heavy weight high-speed elevator. SOLUTION: A heavy weight high-speed elevator is provided with first and second driving hydraulic motor 13 and 23 for rotary-driving the winch shafts 14 and 24 of first and second winches 10 and 20, first and second synchronous hydraulic motors 16 and 26 rotated respectively in synchronization with the winch shafts 13 and 23 of the first and second winches 10 and 20, and a synchronous hydraulic circuit 50 for rotating the first and second synchronous hydraulic motors 16 and 26 by communicating the ports thereof and in synchronization. |
