SAFETY DEVICE FOR HYDRAULIC ELEVATOR

摘要

PROBLEM TO BE SOLVED: To detect rupture and loosening of one rope among a plurality of main ropes even if they occur. SOLUTION: Even if rupture and loosening of one rope among a plurality of main ropes occur, a simple rod 12 and a simple rod spring 15 which are attached to the other end of the main rope drop on opposing receive bases 14. Consequently, the receive bases 14 compress a spring 16 due to their weight, and a detection switch 13 is operated to detect them.