JPS606279B2 - elevator door equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator door device.

Elevator cars may stop abnormally between the two stations due to power outages, etc.

In this case, it is conceivable that a passenger inside the car may artificially close the car door and fall into the hoistway. The present invention solves the above-mentioned drawbacks and provides an elevator door device that is equipped with a device for locking the car door at least when the car stops abnormally.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In the figure, 1 is an elevator car, 2 is an entrance/exit of this, 3 is a car door consisting of a sliding door that opens and closes the entrance/exit 2,
Reference numeral 4 denotes a well-known driving layer for driving the car door 3, 5 an engagement device provided on the car door 3, and 6 a widening mechanism for this. It consists of a rotator pivotally attached to the door 3 of the car.

Reference numerals 7 and 7' denote engagement plates pivotally attached at two points corresponding to the same ends of the respective rotators, 8 is a holding device consisting of an electromagnetic device attached to the door 3 of the car, and 9 is inserted through this. 10 is a blocker consisting of an increased diameter portion provided at the other end of the actuating rod 9; 11 is an engaging plate 7, 7;
12 is a protrusion provided on the upper part of the engagement plate 7, and 13 is an intermediate portion fixed to the car 1. A blocking device consisting of a lever; 14 is a spring whose one end and both ends are loosely applied to the car 1 to bias the blocking device 13 clockwise in FIG. A blocking piece 16 projects from the car door 3 and is placed in a position that can face the blocking device 13, and 17 operates when the car door 3 is in the fully closed position. Switch, 18 is Hatayu, 19 is Hataba door, 2
The well-known engaging body provided in the river, 21 is the engaging body 20
This is a well-known locking device that operates through the

That is, the holding device 8 is normally biased, and thereby the engaging plates 7, 7' are held in the narrow position against the biasing body 11 as shown in FIGS. 1 and 3.

Further, the blocking device 13 comes into contact with the blocking piece 15 and the protruding body 16
In other words, it is held in a non-displaced position. Further, if the car door 3 is fully closed, the switch 17 is pressed and it is detected that the car door 3 is fully closed. When the car 1 moves up and down in this state and passes through the Qinyu 18, the engagement plates 7 and 7 move between the engagement bodies 20 without touching them.
7' moves. Then, when the car 1 stops at the Hataba 18, that is, starts a stopping operation to normally stop, the holding device 8 is deenergized, and the engaging plate 7, 7 is activated by the biasing body 11.
' is widened and the two engaging bodies are engaged with each other, thereby being placed at a predetermined widened position as shown in FIG. This engagement plate 7
, 7', the protrusion 12 does not contact the blocking device 13, so the blocking device 13 does not displace. Then, drive device 4
When the car door 3 is energized, the car door 3 and landing door 19 are opened together. On the other hand, if the car 1 stops or otherwise stops in a position where the engaging plates 7, 7' do not engage with the two subcarriers, that is, it stops abnormally, the holding device 8 is deenergized and the urging member 11 causes As shown, the engaging plates 7, 7' are displaced to the excessively widened position. Then, due to this displacement, the blocking device 13 is displaced via the protrusion 12 against the spring 14 to face the protrusion 16 . Therefore, even if a passenger in the car I attempts to open the car door 3 when the car 1 stops abnormally, the protruding body 16 prevents the blocking device 1 from opening the car door 3.
3, so opening of door 3 of the car is prevented. In addition, since such a door-opening prevention effect of the car door 3 can be obtained without providing a special member on the Hataba 18 side to prevent the door from opening, a simple configuration is required, and hemming and adjustment can be done with less effort. can do. Further, the overexpanded width of the engagement plates 7, 7' is limited as shown in FIG. 5 because the blocker 10 abuts against the holding device. Therefore, accidents that occur when the car 1 stops abnormally can be prevented. Moreover, such an effect can be obtained with a simple device that operates with high reliability. In this embodiment, when the car door 3 is attempted to be opened due to a mischief by a passenger while the car is being raised or lowered, the holding device 8 is deenergized by releasing the pressure on the switch 17. It is also possible to prevent the car door 3 from opening while the car 1 is being raised or lowered, and accidents caused by unforeseen circumstances while the car 1 is being raised or lowered can be prevented.

As explained above, the present invention is provided on the car door and is always held in the narrow width position, and when the car stops normally, it engages with the engaging body of the front door and becomes a predetermined widened state. This car is equipped with an engaging plate that engages the front door and expands its width when the car stops abnormally, and a blocking device that moves the car door to a door-opening prevention position by the over-widening engaging plate provided on the car. It is.

With this device, which does not require any special parts on the Hataba side and has a simple configuration and can be easily installed and adjusted, it is possible to prevent accidents caused by the car door being opened when the car stops abnormally. This is to prevent

[Brief explanation of the drawing]

FIG. 1 is a front view of a main part showing an embodiment of an elevator door device according to the present invention, FIG. 2 is a front view of a main part of the Hataba corresponding to FIG. 1, and FIG. An enlarged view illustrating a narrow width state of the engagement plate, FIG. 4 is an enlarged view of the main part of FIG. 1 and a diagram illustrating a predetermined widened state of the engagement plate, and FIG. 5 is an enlarged view of the main part of FIG. 1. FIG. 3 is a diagram illustrating an excessively widened state of the engagement plate. 2... Car, 3... Car door, 5... Engaging body,
7, 7'... Engagement plate, 8... Holding device, 1
1... Urging body, 13... Blocking device, 1
6... Projection body, 18... Hataba, 19... Hataba door, 20... Engagement body. Note that the same parts in the figures are indicated by the same reference numerals. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. In a device in which the car door and the landing door are engaged with each other and opened and closed together when the car faces the landing, a holding device is provided that is normally energized and deenergized when the car stops. , which is provided in the door of the car, has a bar shape, and its long lengths are arranged along the up-and-down direction of the car, and are biased in directions away from each other, and are normally held in a narrow position by the holding device and maintain the normal operation of the car. an engagement plate that engages with the engagement body of the landing door when the car is stopped and is displaced to a predetermined widening position; and when the car stops abnormally, the engagement plate is displaced to an excessively widening position;
Provided in the above-mentioned car and normally located at a position not facing the above-mentioned car door, and facing the above-mentioned car door when the door is closed in conjunction with the over-widening operation of the above-mentioned engagement plate due to an abnormal stop of the above-mentioned car. A door device for an elevator, characterized in that it is provided with a blocking device that is displaced to prevent the opening of the door of the car.