JPS632875B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention automatically detects that the engaging portion attached to the elevator landing door is attached at a predetermined position relative to the engaging portion attached to the car door. The present invention relates to a device for detecting

In an elevator that has a structure in which a car (cage door) and a landing door (hatch door) engage, the engaging part attached to the hatch door and the engaging part attached to the cage door are in a relative position. Needs to be installed. Since a general elevator has one cage door for each hatch door installed on each floor, the engagement portions of the hatch doors on each floor are aligned based on the engagement portion of the cage door.

If the arrangement of the engaging portions is misaligned, the engaging portions attached to the hatch door and the cage door may come into contact with each other while the elevator is running, resulting in damage to the engaging device. In order to prevent such problems, it is necessary to accurately attach the engaging portion of the hatch door to the cage door at a predetermined position. It is also necessary to periodically inspect this position.

The conventional position inspection means of this type of engagement device is
This will be explained using figures.

This figure shows the engagement device viewed from above (below) the elevator car. In the figure, 1 is a hatch door, and 2 is a hatch door.
1 is a cage door, 3 is a plate-shaped engagement element attached to the hatch door 1, and 4 is an engagement roller attached to the cage door 2, which is arranged on the left and right sides of the engagement element 3. 5 is a basket and 6 is a wall.

The engaging member 3 is attached to the hatch door 1 so as to be located at the center of the engaging roller 4 when both the hatch door 1 and the cage door 2 are closed. In order to check the position of the engaging element 3, it is sufficient to measure the dimensions from the left and right rollers of the engaging roller 4, but the engaging means is generally located approximately at the center in the height direction of the door, and As shown in the figure, it is difficult to measure because it is attached to the center of the car. For this reason, currently, the mounting position of the engaging element 3 is inspected visually from above the car.

However, with this inspection method, not only is it not possible to accurately determine the arrangement of the engagement means, but also the worker must ride on the car and operate at low speed to check the arrangement of the engagement means on each floor. There are problems that involve danger and require a large amount of time to resolve.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device that automatically detects the arrangement of engagement means in a short time and in a simple manner.

An embodiment of the detection device according to the present invention will be described below with reference to FIGS. 2 to 4.

In the figure, 7 is a position detector equipped with a light source and a light sensor that detects the light, and 8 is a reflection plate that reflects the light emitted by the position detector 7 and is attached to the tip of the engaging element 3. Reference numeral 9 denotes a display circuit that inputs a signal from the position detector 7 and lights up a display lamp 10. The display lamp 10 is installed in the machine room or car of the elevator.

The operation of detecting that the engaging element 3 attached to the hatch door 1 is attached to a predetermined position with respect to the engaging roller 4 attached to the cage door 2 is performed by a position detector attached to the center of the engaging roller 4. When the light emitted from the engaging element 7 is reflected by the reflecting plate 8 attached to the tip of the engaging element 3 and activates the optical sensor of the position detector 7, the engaging element 3 moves to the engaging roller 4.
If the light emitted from the position detector 7 does not hit the reflector plate 8 attached to the engaging element 3 and the light does not reflect to the optical sensor of the position detector 7, the optical sensor does not operate, and the engaging element 3 is not located at the center of the engaging roller 4. By confirming the operation of this optical sensor using the display lamp 10 via the display circuit 9, it is possible to know whether the engagement element 3 is located at the center of the engagement roller 4 or not.

That is, in order to detect the position of the engaging element 3 on each floor, a reflector plate 8 is attached to the tip of the engaging element 3 installed on each floor, and the hall floor and the car floor are aligned while the elevator is operated on each floor without opening the door. This can be done by checking whether the indicator lamp 10 is lit or not when the display lamp 10 is turned on.

Thereby, the mutual positions of the engaging element 3 and the engaging roller 4 can be automatically and accurately confirmed without the operator getting on the car.

FIG. 4 shows another embodiment of the present invention, in which the position detector 7
It has a mechanical structure. 7a is a position detection roller with a groove, 7b is a position detection roller 7a
This is a micro switch that supports the position detection roller 7a and operates when the engagement member 3 presses the position detection roller 7a. When the engaging element 3 is located at the center of the engaging roller 4, the position of the engaging element 3 is detected by position detection roller 7.
Since the engager 3 enters the groove a, the position detection roller 7
a is not pressed, but if the engager 3 is not in the center of the engager roller 4, the engager 3 is moved to the position detection roller 7a.
The position detection roller 7 comes off the groove and hits the edge.
A is activated by pressing the micro switch 7b.

In addition, the position detector 7 may be a non-contact type detector such as a magnetic sensor.

According to the present invention, mutual position confirmation of the engagement means attached to the cage door and the hatch door can be automatically, easily, and quickly performed, and the confirmation work can be performed without the operator getting on the cage. .

[Brief explanation of the drawing]

Fig. 1 is an installation diagram of a conventional elevator engagement device, Fig. 2 is an installation diagram of an embodiment of the present invention, Fig. 3 is a block diagram showing the system of Fig. 2, and Fig. 4 is an installation diagram of an embodiment of the present invention. FIG. 7 is an installation diagram of another embodiment. 1... Landing door, 2... Car door, 3... Engagement element,
4... Engagement roller, 5... Basket, 6... Wall, 7...
...Position detector, 7a...Position detection roller, 7b...
...Micro switch, 8...Reflector, 9...Display circuit, 10...Display lamp.

Claims (1)

[Claims] 1. An engaging element is provided on the back side of the landing door that protrudes toward the car door, and on the other hand, when the car door opens,
In an elevator equipped with an engaging body that grasps the engaging element, a detection device is provided on the car side facing the engaging element and detects that the engaging element is in a predetermined position; An installation state confirmation device for an elevator landing door engaging element, characterized in that the detection device includes a display device that displays an abnormality when the detecting device detects an abnormal position of the engaging element.