JPS60228369A - Annunciator for maintenance operation of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to the maintenance operation of an elevator, and in particular, the present invention relates to the maintenance operation of an elevator, and in particular, when a maintenance worker riding in an elevator car is This invention relates to a display device for maintenance operation of an elevator that confirms that the door of the elevator is fully engaged and can be opened and closed.

[Background of the invention]

Conventionally, when performing inspection work around the entrance/exit 11 landing area of each floor of an elevator, a maintenance worker riding in the elevator car performs maintenance operations to determine the position of the elevator car and the position of the entrance/exit landing area to be inspected. Based on the experience of maintenance workers, there is a method of inspecting from inside the car by opening only the car door after sensually rubbing the car.

At this time, if the engagement position of the engagement device for opening and closing the entrance/exit door and the car door in conjunction with each other is at the upper end or the lower end, and if this engagement distance is extremely small, then when the car door opens, In some cases, force is applied intensively to this engagement portion, damaging the engagement device.

In addition, even if damage does not result, if you try to operate the elevator by closing the car door after just barely opening the car door, the engaging devices of the entrance door and the car door will hit each other, so it will be difficult to operate the elevator once. A car door that has been opened cannot be closed again, and the car cannot be returned to normal unless the car position is forcibly moved with the car door left open in the elevator machine room and the engagement range is completely removed. There was a problem with this.

FIG. 1 shows a state in which the engaging devices of the entrance door and the car door are not engaged, FIG. 2 shows a state in which they are completely engaged, and FIG. 3 shows a state in which they are incompletely engaged.

In the figure, 3 is an elevator car, 7 and 8 are engagement devices, 9 is a car door, and 10 is an entrance/exit door.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator maintenance 'JL diversion display device that can reliably prevent accidental damage to the elevator during one inspection of the elevator.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 4 to 7.7 In the elevator-hoistway side view of FIG. 4 and the two-side view of FIG. 5, 1 is ¥1. 2 shows the shaft wall, 2 is the shaft wall j
This is a car position detecting play 1- attached to a predetermined location of each floor entrance/exit 1-1.

This plate 2 is provided facing the car position detection switch 4 attached to the elevator car 3, and when the detection switch 4 approaches the plate 2 and reaches a specified position,
By operating the detection switch 4, it is detected that the door installed at each ejection entrance hall and the car door are in a zone where they can be reliably opened and closed in conjunction with each other.

Therefore, the size at which the detection switch 4 matches the plate 2 is set to be smaller than the size at which the entrance/exit door and the car door can engage.

Incidentally, the detection switch 4 and plate 2 are generally used in elevators.
Existing switches can be used instead for detecting door opening/closing zones.

In Fig. 6, (+) and (-) are the control busbars, 6 is the changeover switch for in-car maintenance operation, 4a is the output a contact of the position detection switch 4 in Fig. 4, and 5 is the condition under these conditions. This is an output indicator light when the following is established, and is provided inside the car.Next, the operation of the present invention will be described.

When an inspection worker, that is, a maintenance worker switches to maintenance operation inside the elevator heel 3, the switch 6 in FIG. 6 closes, and the car 3 is moved from the position shown in FIG. ] Let's say you brought it up. Then, position detection I is performed at this (■3) position.
! Since the 5-channel switch 4 operates, the contact 4iI closes,
The indicator light 5 installed inside the cage 3 lights up 7, allowing the maintenance personnel inside the cage to detect that the entrance/exit door is in a position where it can be opened and closed in full conjunction with the cage door. There is no need to worry about the maintenance device being biased due to door opening/closing operations during maintenance operations, and daily inspection work can be performed.

In the example, a position detection device attached to the hoistway wall and car number 7 is used to light up the indicator light inside the car, but this can also be done using a position detection device using a floor selector or my collection. .

[Brief explanation of drawings]

1 to 3 are conventional schematic diagrams, and FIG. 4 is a conventional schematic diagram. FIG. 5 is a schematic diagram of an embodiment of the invention, FIG. 6 is a circuit diagram of an embodiment of the invention, and FIG. 7 is a detailed explanatory diagram of the invention. 4...Position detection switch, internal indicator light, 6.
・・Switch for maintenance operation. Agent Patent Attorney Akio Takahashi

Claims (1)

[Claims] 1. When performing maintenance operation inside an elevator car,
It is characterized by comprising means for informing a maintenance worker inside the car, by means of an optional indicator light inside the car, that each ejection inlet door and the car door are in a position where they can be opened and closed in a mutually engaged state. Display device for maintenance operation of elevators. 2. The display device for maintenance operation of an elevator as set forth in claim 1, wherein the indicator light is an open button light inside the car.