Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped

A technology of safety locks and lifts, which is applied in the field of lifts, and can solve problems such as cumbersome operations, resetting, and moving back and forth

Active Publication Date: 2008-02-20
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, during maintenance operations, the operator needs to perform cumbersome operatio...

Method used

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  • Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped
  • Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped
  • Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped

Examples

Experimental program
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Embodiment Construction

[0020] Referring to the drawings, and in particular to FIGS. 1 and 2 , there is shown a safety lock 1 for elevator landing doors according to an exemplary embodiment installed on an upper lintel 3 of an elevator landing door on each landing of a building. superior. It is installed on central opening or side opening landing doors, eg both leaves move away simultaneously when opening and move closer in opposite directions when closing.

[0021] It is configured to engage on the end of the web 5 of the landing door.

[0022] Traditionally it consists of an external opening 7 in which the lock drive key is mounted, the crank end 11 referred to as the spindle rod engages on the end 13 of the lift door web during the opening operation in order to lower and release it Closing the hook and thus the operating lever spindle 9 which makes the landing door open and the door closing contact 15 which stops the lift, opens; it also includes a lock 17 for mounting on the floor sleeve 19 and ...

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PUM

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Abstract

An elevator landing safety lock (1) for detecting the intrusion of a person through a landing door, a bistable switch is activated via a mandrel rod (11) when the landing door is opened by turning the corresponding key (21), to place the lift in safe operation, cannot be manually reset from the inside of the access switch (12), which includes means for securing the lock in the open position with the door open (17), and is released when the door is closed, by Turning the lock (1) in the door closing direction allows the switch (21) to be reset, wherein the key is turned in the opposite direction to the opening direction, the switch (21) is mechanically reset by a mechanical device attached to the mandrel rod (11).

Description

technical field [0001] The present invention generally relates to an elevator landing door safety lock for detecting the intrusion of persons into a passageway via a landing door and an elevator equipped with the lock. Background technique [0002] It is known that some elevator landing door locks are equipped with a bistable safety switch which is activated by the landing door lock key when the door is opened and puts the elevator in safe operation so that it cannot be manually reset from the inside of the passageway. Nevertheless, the switch position is reset electrically from the lift machine room. This configuration requires an electrical reset actuator for the bistable switch and corresponding wiring for the landing doors in the lift machine room. In addition, during maintenance operations, the operator needs to perform cumbersome operations to reset in the elevator machine room and perform corresponding back and forth movements. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): B66B13/16
CPCB66B13/245B66B13/16Y10T70/8946Y10T70/7062
Inventor D·皮林S·福热龙G·西里古
Owner OTIS ELEVATOR CO
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