Electric elevator door safety device

A safety device, elevator door technology, applied to elevators, transportation and packaging in buildings, etc., can solve problems such as increased maintenance costs, low reliability of elevator door safety devices, and easy disconnection.

Inactive Publication Date: 2004-09-08
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the elevator door safety brake controlled by a micro switch with a cable, since the cable bends every time the elevator door is opened and closed, there is a trouble of low reliability of the elevator door safety device, and it is easy to disconnect eventually, resulting in an increase in maintenance costs

Method used

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  • Electric elevator door safety device
  • Electric elevator door safety device

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Embodiment Construction

[0009] Next, an embodiment of the present invention will be described. exist figure 1 Among them, the number 1 represents the elevator door safety brake, 2 represents the joystick, one end of which supports 3 on the elevator door safety brake 1 centered on the pivot, and the other end supports 4 on each floor centered on the pivot, and can swing, 5 It shows a connecting rod, one end of which is supported 6 at the approximate center of the joystick 2 with a pivot as the center so as to be able to swing, and the other end of the connecting rod is connected to one end of the reflector support rod 8 via a universal joint 7 . The reflector supporting rod 8 is supported by the bracket 10 and can swing around the pivot 9 at each layer.

[0010] The polarized light reflector 11 is coupled with the other end of the reflector support rod 8, and the detector 12 is fixed and supported at a place facing the polarized light reflector 11. The detector 12 has an X-axis polarizing filter scr...

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PUM

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Abstract

A safety device for an elevator door characterized by the following facts: a lever (2) with one end (3) pivoted at an elevator door safety shoe (1) has its other end (4) fixed and supported on each floor in a rotatable manner; a polarized reflection plate (11) is supported at one end of a link lever (8) which has its other end pivoted to the aforementioned lever (5) to swing around a pivot point (9); a detector (12) facing the polarized reflection plate is connected to a controller (15); and the controller is connected to the door operator (16).

Description

field of invention [0001] The invention relates to an elevator door safety device, in particular to the improvement of the elevator door safety brake for controlling the opening and closing of the elevator door. Background technique [0002] The elevator door safety brake is a plate placed in the space formed between the elevator cabin and each floor. A safety device that prevents the opening and closing of elevator doors. [0003] Usually, elevator door safety brakes are controlled with microswitches with cables. [0004] However, in the elevator door safety brake controlled by a micro switch with a cable, since the cable bends every time the elevator door is opened and closed, there is a trouble of low reliability of the elevator door safety device, and it is easy to disconnect eventually, resulting in an increase in maintenance costs . Summary of the invention [0005] Accordingly, the present invention aims to improve the reliability of elevator door safety devices....

Claims

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Application Information

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IPC IPC(8): B66B13/26B66B13/24
CPCB66B13/24B66B13/26
Inventor M·纳卡莫里S·瑟伊M·希加施德
Owner OTIS ELEVATOR CO
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