Elevator device

Abstract

An elevator device, which controls the operation of the elevator when an earthquake or strong wind occurs, and predicts and calculates the signal detected by the vibration detector (5) installed on the upper part of the elevator passage (20) or the upper part of the building. (20) shake responses of long-scale components such as the main sling (7) at various time points, and issue control instructions based on the calculation results. The elevator equipment of the present invention can detect vibration of long-scale components such as the main rope during earthquakes and strong winds with high precision, and perform controlled operation.

Description

technical field [0001] The present invention relates to an elevator device that performs controlled operation when a building shakes due to an earthquake or strong wind. Background technique [0002] When an earthquake occurs, the faster P-wave (longitudinal wave) and the slower-propagating S (shear wave) that exhibit the main motion of the earthquake propagate from the source to the building, respectively. As a prior art, for example, the following non-patent document 1 discloses a method of classifying the acceleration level of the S wave in the horizontal direction detected by the building shaking device into thresholds consisting of an extremely low level, a low level, and a high level. Level, and use it to control the operation of elevators during earthquakes. Before the shaking of the building due to the main motion of the S wave becomes large, the arrival of an earthquake can be detected several seconds earlier than the S wave by detecting an extremely low level of a...

AI Technical Summary

Problems solved by technology

[0010] As a result, there are problems such as P-wave initial micro-motion control cannot perform its function, and when the elevator is running, the long-scale components will come into contact with the equipment in the elevator passage and cause secondary damage. When the wave detection sensitivity is low, there is a problem that the elevator will enter a needless stop state due to a small-scale earthquake in the short distance or noise and vibration unrelated to the earthquake.

Moreover, when judging the shaking of long-scale components indirectly based on the state quantities such as the speed of building shaking, displacement, or the product of speed and displacement, it is impossible to understand the state of the increase and attenuation of long-scale components one by one. Therefore, there are still problems that cannot make a correct judgment on the following situations: (1) Is it allowed to reduce the rated speed for deceleration operation? (2) Whether to temporarily stop the elevator? (3) Is it possible to make the elevator perform evacuation operation, and move the elevator to a position where the shaking of long-scale components will not increase significantly, that is, a position where the shaking of long-scale components will not resonate with the shaking of the building? Or (4) It is impossible to reasonably determine the release time of the control operation of the elevator according to the attenuation degree of long-scale component shaking, etc.

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