| 摘要 |
An elevator buffer includes: a hydraulic buffer main body 2 arranged at a lowermost part of a hoistway, in which a plurality of plungers 6a to 6c are coupled to an upper surface of a cylinder 5 at multiple stages; a pulley mechanism 3 having pulley multi-winging means 10 in which one end of a flexible long member 9 is fixed to the uppermost plunger 6a, the other end of the flexible long member 9 is fixed to a first fixing part 8, a middle part of the flexible long member 9 having two mutually coupled movable pulleys 12a, 12b, and a fixed pulley 13; and a return checking switch 4 operated in accordance with upper and lower positions of the movable pulleys 12a, 12b. |
