elevator equipment

Abstract

PROBLEM TO BE SOLVED: To provide an elevator system which can conduct operation for emergency according to the relative displacement of a main rope computed by a computing part, and can obtain an effective vibration control effect with respect to the main rope. SOLUTION: An emergency operation control unit 23 conducts: vibration-control emergency operation by which a car 2 is moved to a position where the vibration of the main rope 4 is restricted, a vibration control member 21 of a vibration control system 17 arranged on the car 2 is moved higher by an extensible mechanism 18, and the vibration of the main rope 4 is controlled by the vibration control member 21 when the relative maximum displacement α of the main rope 4 computed by the computing part 22 is a predetermined relative displacement threshold (a) or lower; and stop emergency operation by which car movement to the nearest floor for evacuation is prepared when the relative maximum displacement α of the main rope 4 computed by the computing part 22 exceeds the predetermined relative displacement threshold (a).

Description

technical field [0001] The present invention relates to elevator equipment that performs controlled operation for shock absorption when a building shakes due to an earthquake or the like. Background technique [0002] In the existing elevator equipment, for example, as disclosed in Patent Document 1 to Patent Document 3, when an earthquake occurs, when the vibration of the building is detected by the vibrator, based on the detection information of the vibrator, The calculation part calculates the maximum relative displacement of elongated members such as the main sling relative to the building, and performs multi-stage control operations based on the calculated maximum relative displacement (see Patent Document 1 to Patent Document 3). In addition, various sway suppressing members for restricting sway of the main rope etc. are disclosed in, for example, Patent Document 4 to Patent Document 10 (see Patent Document 4 to Patent Document 10). [0003] Patent Document 1 Japanese...

AI Technical Summary

Problems solved by technology

[0013] However, in conventional elevator equipment, when the sway suppressing members described in Patent Document 4 to Patent Document 10 are used, they not only operate to suppress sway when the maximum relative displacement of the main rope is small, but also suppress sway when the maximum relative displacement of the main rope is small. The main sling operates to suppress sway even when the maximum relative displacement is large, so the sway suppression member used needs to have mechanical strength capable of withstanding the working strength, and there is a problem that the sway suppression member is large in scale and heavy.

In addition, among the above-mentioned sway suppressing members, some sway suppressing members are provided on the elevator car, and these sway suppressing members can only prevent vibration from being transmitted to the elevator car through the main rope, but cannot actively prevent the main rope from shaking.

As for the sway suppression member installed on the wall side of the hoistway, since the position where the vibration damping effect is produced is fixed, it cannot be expected to exert an effective sway suppression effect

In addition, the schemes disclosed in Patent Document 1 to Patent Document 3, that is, calculate the maximum relative displacement of the main sling, and carry out control operation in stages based on the maximum relative displacement, cannot expect the control of the main sling. Vibration effectively exerts dampening effect

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