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Elevator Controls

A technology for control devices and elevators, applied in the field of elevator control devices

Active Publication Date: 2017-07-21
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the rope comes into contact with the equipment in the hoistway and / or the hoistway wall, causing a "trapped accident"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0038] figure 1 It is a figure which shows the structure of the elevator of 1st Embodiment. Now, assume a case where one elevator 11 is installed in a certain building 10 . In addition, in the present embodiment, the elevator 11 is used as an observation elevator, and runs back and forth between the lobby floor on the lower floor of the building 10 and the observation floor on the upper floor.

[0039] Such as figure 1 As shown, a hoist 12 as a driving source of an elevator 11 is installed in a machine room 10 a at the uppermost part of a building 10 . Moreover, in the machine-room-less elevator, the hoisting machine 12 is installed in the upper part in the hoistway 10b.

[0040] A main rope 13 is wound around the hoist 12 . A passenger car 14 is attached to one end side of the main rope 13 . A counterweight 15 is attached to the other end side of the main rope 13 .

[0041] A compensating sheave (compensating sheave) 16 is provided at the lowermost portion of the lift p...

no. 2 Embodiment approach

[0098] Next, a second embodiment will be described.

[0099] Such as Figure 8 As shown, the first floor of the lower floor of the building 10 is the lobby floor, the 20th floor of the upper floor is the observation floor, and each is a resonance floor. Here, it is assumed that non-resonant floors exist in the vicinity of the lobby floor and the observation floor. exist Figure 8 In the example, layers 6 and 15 are non-resonant layers.

[0100] The "non-resonant floor" refers to a floor with little rope vibration accompanying the shaking of the building 10 . For example, the main ropes 13a on the side of the car 14 have a characteristic of swinging at the maximum when the car 14 is in the vicinity of the lowest floor. Therefore, about the main rope 13a, the vicinity of the lowest layer becomes a resonant layer. The main rope 13b on the side of the counterweight 15 has a characteristic of swinging at a maximum amplitude when the passenger car 14 is near the uppermost floor...

no. 3 Embodiment approach

[0125] Next, a third embodiment will be described.

[0126] In the above-mentioned first and second embodiments, the description has been made on the assumption that passengers board and descend on the same floor. In the third embodiment, a case where boarding and descending of passengers are performed on different floors is assumed.

[0127] Figure 15 It is a figure which shows an example of the observation elevator of 3rd Embodiment. According to the specifications of the building 10, it is divided into a floor for passengers to board and a floor for passengers to go down. In this example, the 1st floor of the lower floor of the building 10 is a floor dedicated to elevators (lobby floor), the 2nd floor is a floor dedicated to elevators, the 20th floor of the upper floor is a floor dedicated to elevators (view floor), and the 19th floor is a floor dedicated to elevators. Dedicated floor for elevators.

[0128] Such as Figure 16 As shown, the passenger car 14 repeats th...

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Abstract

The present invention provides a control device for an elevator that prevents ropes from wobbling due to resonance to continue operating services when a building shakes. A control device (22) of an elevator is provided with: a building shaking detection unit (31), which detects the shaking of a building; The boarding and descending action of passengers at the floor is limited to only taking the elevator or only the elevator to control the operation of the passenger car. The resonance floor is the floor where the ropes swing greatly due to the shaking of the building.

Description

[0001] This application is based on Japanese patent application 2014-010752 (filing date: 2014-1-23), and enjoys the priority of this application. This application incorporates the entire content of this application by reference. technical field [0002] Embodiments of the present invention relate to an elevator control device that detects shaking of a building caused by an earthquake, strong wind, etc., and switches the operation of the elevator. Background technique [0003] When a building is high-rise, the natural frequency of the building decreases, and a resonance phenomenon is likely to occur during an earthquake and / or strong wind. Here, when the natural vibration frequency of the building matches the natural vibration frequency of the elevator ropes (main ropes, governor ropes, etc.) installed in the hoistway, the ropes vibrate greatly due to resonance. As a result, the rope comes into contact with the equipment in the hoistway and / or the hoistway wall, and a "trap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02
CPCB66B5/0031B66B5/022B66B5/028
Inventor 小泉润
Owner TOSHIBA ELEVATOR KK
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