| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an elevator device capable of preventing abnormal mutual approach of two cars ascending and descending on one elevating path. <P>SOLUTION: Both of the first car 3 and the second car 4 are arranged on one elevating path of a shaft 1, the first car 3 and a first balance weight 6 are mutually connected by a first main rope 4, and the second car 4 and a second balance weight 9 are mutually connected by a second main rope 10. Length of the second main rope 10 is set to such length that both of the first balance weight 6 and the second balance weight 9 hit mutually when both of them approach each other abnormally in the case where an unexpected situation occurs. Both of cars hit mutually before both of the cars approach mutually by exceeding a predetermined interval in the case where the unexpected situation occurs. Consequently, it is possible to prevent a bad condition in which both of the cars approach mutually and abnormally. <P>COPYRIGHT: (C)2004,JPO |
