Method for preventing an inadmissibly high speed of the load receiving means of an elevator

A technology of elevator car and running speed, which is applied in transportation and packaging, sustainable buildings, elevators, etc. It can solve the problems of old and weak people being injured, passengers' discomfort, fear, etc., to achieve low cost, avoid safety braking, The effect of improving availability

Inactive Publication Date: 2007-04-04
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main disadvantage of the described electronic speed limiting system is that every time it is detected that the effective limit value is exceeded, it will cause the release of the safety brake device and subsequently cause the elevator to be interrupted, wherein the elevator will be restored to work by a professional or Passengers are mostly not allowed to leave the elevator until the elevator car is placed in the entrance area
Each speed limit therefore results in the braking of the elevator car with a hysteresis value in the most reliable range, which causes great discomfort, fear, and even a possible danger of injury to the passengers for the elderly and infirm

Method used

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  • Method for preventing an inadmissibly high speed of the load receiving means of an elevator
  • Method for preventing an inadmissibly high speed of the load receiving means of an elevator
  • Method for preventing an inadmissibly high speed of the load receiving means of an elevator

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Embodiment Construction

[0031]Figure 1A is a schematic illustration of an elevator installation with a cable drive. The figure shows an elevator shaft 1 with a machine room 2 and a floor entrance 3 . Arranged in the machine room 2 is a drive machine 4 which draws and drives an elevator car 8 guided on guide rails 7 via a drive pulley 5 and a support cable 6 . The drive machine 4 has a drive motor 9 with an electromechanical drive brake 10 . The direction of rotation, rotational speed and drive torque of the drive motor 9 are adjusted by a speed regulating device 14 , wherein the speed regulating device receives a control command from an elevator control unit 15 . Mounted on the elevator car 8 are two safety brakes 18 which are activated, for example electromagnetically, with which the elevator car 8 can be braked and brought to a standstill in an emergency. 20 denotes a scale extending over the entire travel path of the elevator car 8 , said scale having a plurality of binary-coded parallel code tr...

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Abstract

A method for preventing an inadmissibly high speed of a load receiving unit of an elevator, including the steps of supplying information about an actual position and an actual speed of the load receiving unit in an area of an entire travel way of the load receiving unit to a speed monitoring device by at least one measuring system, continuously comparing the actual speed with a speed limit value by the speed monitoring device, and activating braking measures if the speed of the load receiving unit exceeds a speed limit value. At least three different braking measures are successively triggered by the speed monitoring device.

Description

technical field [0001] The invention relates to a method for preventing impermissibly high travel speeds of an elevator car. Background technique [0002] The regulations concerning the manufacture and operation of elevators require the use of devices and methods which can avoid impermissibly high running speeds of the elevator car at any stage of the elevator's operation with the highest level of safety. [0003] Conventional elevators are equipped with a safety braking device, which is activated by the speed governor when the running speed of the elevator car exceeds a defined speed limit, and the elevator car is braked and stopped with the most reliable hysteresis. [0004] In US 6,170,614 B1 an electronic speed limiting system is disclosed which continuously obtains information about the actual position of the elevator car from a position measuring device and calculates the actual speed of the elevator car from this information . This actual speed is continuously compa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B1/44B66B5/06B66B1/32
CPCB66B1/285B66B1/44
Inventor 菲利普·昂斯特罗梅奥·德普拉策斯
Owner INVENTIO AG
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