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elevator system

A technology of elevator system and car, which is applied in the direction of elevator, transportation and packaging, etc., and can solve the problems that the braking device cannot be properly controlled, car conflicts, etc.

Active Publication Date: 2018-01-16
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the system described in Patent Document 1, there is a problem that appropriate control cannot be performed when the holding force of the braking device decreases.
For example, there is a problem that the car conflict cannot be completely avoided when the brake device produces oil leakage

Method used

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Embodiment approach 1

[0016] figure 1 It is a figure which shows the structural example of the elevator system concerning Embodiment 1 of this invention.

[0017] The elevator system has a plurality of cars. As the simplest example, figure 1 The elevator system is shown with a car 1 and a car 2 . Car 1 and car 2 ascend and descend in the same hoistway 3 . An elevator in which such multiple cars are independently lifted and lowered in the same shaft is called a single-shaft multi-car elevator. The system can be applied to a system in which more than two cars are lifted and lowered in the same shaft.

[0018] The car 1 ascends and descends in the hoistway 3 above the car 2 . The car 1 is provided with a notification device 4 . The notification device 4 notifies a person riding in the car 1 of information. The notification device 4 can be a display device that displays characters or the like. The notification device 4 may also be a broadcasting device that notifies information by sound.

[00...

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Abstract

To provide an elevator system capable of performing appropriate control even when the holding force of a braking device is lowered. As a solution, the car (1) and car (2) are raised and lowered in the hoistway (3). A slipping direction detection unit (10) detects the direction in which the car (1) moves in a state where a braking device (8) generates a holding force. An evacuation operation determination unit (20) determines whether an evacuation operation of the car (2) is necessary based on the direction detected by the slip direction detection unit (10). When the evacuation operation determination unit (20) determines that the evacuation operation is necessary, the operation control unit (21) controls the evacuation operation of the car (2).

Description

technical field [0001] The present invention relates to elevator systems. Background technique [0002] Patent Document 1 discloses an elevator system in which a plurality of cars move up and down in the same shaft. In the system described in Patent Document 1, when the relative speed of the lower car and the upper car located directly above the lower car exceeds a reference speed, either the lower car or the upper car is decelerated. Thereby, conflicts between the lower car and the upper car are avoided. [0003] 【Patent Literature】 [0004] [Patent Document 1] Japanese Unexamined Patent Publication No. 2006-315796 [0005] In the system described in Patent Document 1, there is a problem that appropriate control cannot be performed when the holding force of the braking device decreases. For example, there is a problem that car collision cannot be completely avoided when the braking device generates oil leakage. Contents of the invention [0006] The present invention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
Inventor 山岸功治
Owner MITSUBISHI ELECTRIC CORP