Doorway Groove Foreign Body Diagnostic Apparatus Fo Elevator Door

Abstract

A doorway groove foreign body diagnostic apparatus for an elevator door. A control panel (13) functions in cooperation with a door open / close position detecting device (11) and a door control device (12). When detecting foreign objects to be caught in the landing door side doorway groove (8) of a doorway (7) and a car door side doorway groove (9), and door opening and closing operation of the elevator doors (the car door 4 and the landing door 3) is abormal, the torque current value of a door motor (10) and the opening and closing of the door from the door open / close position detecting device (11) are used for judging whether foreign objects can be removed. A door control unit (12) instructs to continue the door opening and closing operation and repeat the predetermined number of times to determine whether or not the door opening / closing operation is possible. In addition, when the door reversal position changes after doing under the door unopenable condition, when the door can be closed, it is considered that the foreign object has been removed at the time when it is confirmed that the door can be normally opened and closed, and normal service is started .

Description

technical field [0001] The present invention relates to an elevator door sill groove foreign object diagnosis device for diagnosing a state in which a foreign object is caught in the sill groove when the elevator door is opened and closed, causing an opening and closing operation failure. Background technique [0002] Conventionally, in an elevator, if a foreign object is caught in the elevator door (specifically, the car door installed on the car, the hall door installed at the entrance and exit of the hall floor) ) of the sill groove, the opening and closing operation cannot be performed. If this situation occurs, the opening and closing operation will be repeated on the same floor, or the service will be stopped while the open state is maintained after a fixed time limit. Therefore, the It becomes a situation that impairs the convenience of the user. [0003] Therefore, a technology for avoiding such a situation has been proposed, for example, it is possible to perform t...

AI Technical Summary

Problems solved by technology

[0007] In the technique of the above-mentioned Patent Document 1, there is a problem that the torque value of the door motor at the time of opening and closing the elevator doors is measured for each floor door, and when the torque value exceeds the predetermined torque judgment threshold value, it is judged as Abnormality, the result of the judgment is notified to the remote monitoring device. With this function, only the abnormality of the elevator door is judged, and there is no attempt to remove foreign objects caught in the sill groove by, for example, repeatedly opening and closing the elevator door. Such trials and functions do not change the situation until the abnormality is avoided, so as a result, there are problems that the increase in the non-operation time of the elevator cannot be eliminated, and the situation that the convenience of the user (customer) is reduced due to the inability to use the elevator

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