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Elevator having operation switching system

A technology of operation switching and elevators, which is applied in the field of elevators, can solve problems such as the lack of safety improvement, and achieve the effect of improving safety

Active Publication Date: 2013-10-23
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, in the technology disclosed in Patent Document 2, since an in-car operation switch is installed in the elevator car, there is still the possibility that maintenance personnel will operate it, and the safety when returning to normal operation is not guaranteed. improved, needs further improvement

Method used

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  • Elevator having operation switching system
  • Elevator having operation switching system
  • Elevator having operation switching system

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 It is an overall structural diagram of the elevator system, and the movement of the elevator car 105 is controlled by the elevator controller 100 . The elevator car 105 moves between a plurality of floors in a hoistway formed in a building, and is connected to a counterweight, which is a weight for balancing with the elevator car 105 , by a sling. The elevator car 105 is provided with a car door which is opened and closed in conjunction with the elevator hall door. The motor 103 drives the sheave 104 to move the elevator car 105 . The electric motor 103 is supplied with drive power by the power converter 101 .

[0036] The power converter 101 outputs electric power for controlling the motor according to a car position control command from the elevator controller 100 . In addition, a pulse generator such as an encoder is installed on the motor 103, and the elevator controller 100 calculates the speed of the motor 103, the moving direction, position and movi...

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PUM

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Abstract

To improve safety of operators in maintenance operation and improve safety during normal operation hereafter, an elevator which has an operation switching system which switches from a normal operations state to a maintenance operation state. The elevator has a switching switch (4) which switches between normal operation and maintenance operation; a maintenance operation apparatus which is equipped with a maintenance operation switch (7) which switches between a maintenance side and a normal side, and when the maintenance operation switch (7) is operated to the maintenance side, the elevator car is elevated or lowered as maintenance operation; and a safety controller (1) which receives signals input from the switching switch (4) and the maintenance operation apparatus, and in order to brake the elevator car, outputs instruction signals to cut off a brake power supply (2) or a dynamic power supply (3), and when the switching switch (4) is switched to maintenance operation, the safety controller (1) sets normal operation to be ineffective, and sets the maintenance operation to be effective.

Description

technical field [0001] The present invention relates to an elevator that switches from normal operation to inspection operation (maintenance operation) for inspection, and is particularly suitable for improving the safety of workers during inspection and the safety of normal operation thereafter. Background technique [0002] In the existing elevator system, maintenance personnel need to enter the elevator passage in order to maintain the devices in the elevator passage. As a device to ensure the safety of the operation in the elevator passage, a switch or an operation panel to stop the elevator car is installed on the elevator car or in the elevator pit, and maintenance personnel usually use these inspection and running devices for maintenance. maintenance work. For example, the operator operates the inspection operation device installed on the elevator car to make the maintenance operation effective, and maintains the maintenance operation until the car floor is aligned w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/06B66B5/00
Inventor 井上真辅吉川敏文星野孝道高山直树纳谷英光松土贵司岩本晃松本惠治大宫昭弘
Owner HITACHI LTD
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