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elevator installation

A technology of elevators and lifting bodies, which is applied in the direction of transportation, packaging, elevators, etc., can solve problems such as no consideration, and achieve the effect of avoiding driving stop

Active Publication Date: 2018-09-14
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The techniques described in Patent Documents 1 and 2 have not taken into account the countermeasures against the excessive vibration of the lifting body caused by passengers, etc., and the overspeed switch function operates to stop the lifting body unnecessarily.

Method used

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Embodiment Construction

[0054] Hereinafter, an embodiment for implementing the present invention (hereinafter referred to as an "embodiment") will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments. In this specification and the drawings, the same reference numerals are given to the same components or components having substantially the same function, and overlapping descriptions are omitted.

[0055]

[0056] In the elevator apparatus according to the embodiment of the present invention, an electronic safety controller 200 (refer to Figure 5 ) electronic security system. Moreover, it is equipped with the speed detection part which detects the traveling speed of an elevator, more specifically, the traveling speed (movement speed / lifting speed) of the lift body called an elevator car. The speed detection unit uses a speed sensor that electrically measures the traveling speed in order to detect the traveling speed of the elev...

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PUM

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Abstract

To provide an elevator device that can avoid a situation where excessive vibration of a lifting body by a passenger, etc. causes an overspeed switch function to operate and thus traveling of the lifting body stops unnecessarily. An elevator device includes: a speed detection section for detecting traveling speed of a lifting body; a control section having an overspeed switch function for stopping operation of the lifting body when a speed signal detected by the speed detection section reaches a specified value set corresponding to an abnormal speed of the lifting body. The elevator device further includes a low-pass filter for blocking a frequency component caused by excessive vibration of the lifting body included in the speed signal detected by the speed detection section. The overspeed switch function monitors whether the speed signal in which the frequency component caused by the excessive vibration of the lifting body is blocked reaches the specified value.

Description

technical field [0001] The present invention relates to an elevator apparatus. Background technique [0002] Elevator devices are generally provided with safety devices that constantly monitor the travel speed (moving speed / elevating speed) and travel position of a lift body called an elevator car, and when the lift body falls into a predetermined abnormal state, cause the lift body to malfunction. stop. As a safety device, an electronic safety system using a safety controller has been introduced in recent years. The safety controller uses a speed sensor to electrically detect (measure) the travel position and travel speed of the lifting body, and outputs a result for the elevator apparatus based on the detection result. Command signal to transition to a safe state. [0003] As the technology of this electronic security system, the technologies described in Patent Documents 1 and 2 are known. Patent Document 1 describes that "the electronic safety controller detects an ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/06
Inventor 中山彻也平野薰安部贵酒井悠至
Owner HITACHI LTD