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Elevator apparatus

A technology for elevators and braking devices, which is used in elevators, transportation and packaging, elevators and other directions in buildings, and can solve problems such as car inclination and passenger discomfort.

Inactive Publication Date: 2011-01-05
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned conventional elevator apparatus, if the braking timings of the braking devices of the first and second driving devices do not match during emergency braking, the car will tilt, which may cause serious harm to passengers in the car. Unpleasant

Method used

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Embodiment approach 1

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Embodiment approach 3

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Abstract

An elevator device in which an elevator car is lifted and lowered by drive force of drive devices. Each of the drive devices has a drive sheave, a motor for rotating the drive sheave, and a brake device for braking rotation of the drive sheave. The brake device has brake bodies belonging to different groups. In emergency braking, the brake device causes the brake bodies to generate force for eachgroup at a different timing.

Description

Elevator device technical field The present invention relates to an elevator apparatus that raises and lowers a car by the driving force of a plurality of driving devices. Background technique In the conventional elevator apparatus, the car is raised and lowered by the first and second driving devices provided at the upper part of the hoistway. The car is equipped with a sensor to detect the tilt of the car. During the running of the car, the first and second driving devices are controlled so as to eliminate the inclination of the car based on the signal from the sensor (for example, refer to Patent Document 1). Patent Document 1: WO2004 / 026749A1 In the above-mentioned conventional elevator apparatus, if the braking timings of the braking devices of the first and second driving devices do not match during emergency braking, the car will tilt, which may cause serious harm to passengers in the car. Unpleasant. Contents of the invention The present invention has been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/32B66B7/06
CPCB66B1/32B66B7/10B66B9/00
Inventor 上田隆美
Owner MITSUBISHI ELECTRIC CORP