JPS6243984Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a device for opening and closing elevator doors.

Engaging elements that protrude toward each other are provided on opposing surfaces of the elevator car door and the landing door, respectively. A suitable gap is maintained between these engagers while the car is running, and they do not interfere with each other. When the car lands on the floor, the engaging members face each other, and when the car door is opened, they engage with each other and the landing door is also opened in conjunction. When the car door closes, the landing door also closes in conjunction.

When getting on and off a car in a wheelchair, the wheels of the wheelchair may fall into the gap between the car's sill and the landing's sill. Therefore, it is desirable to narrow the gap between the thresholds, but if the gap is narrowed, when the car door engager passes the landing door sill as the car runs, the car sill will also pass the landing door engager. When passing, the engager and the sill tend to come into contact with each other.

The car is also provided with guide rollers, which rise and fall along guide rails erected in the elevator, but the guide rollers are constructed to be cushioned with flexible materials such as springs so that passengers do not feel any shock when passing over curved sections or joints in the guide rails. Therefore, if a drunk passenger or the like becomes violent inside the car while it is moving, the cushioning properties of the guide rollers will cause the car to swing, and the engaging members will collide with each other when they pass through the threshold, emitting a loud noise that will make passengers feel uneasy and cause damage to them.

This invention improves the above-mentioned problem by providing a protective piece made of non-metallic elastic material on or near the engaging element of the car door and landing door. To provide an elevator door device which reduces abnormal noise.

An embodiment of this invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a wall that separates the landing from the hoistway, 2 is the landing floor, 3 is a door rail fixed to the hoistway side of the wall 1, and 4 is a door rail fixed to the hoistway side of the wall 1. A roller 5 that rolls on the door rail 3 is located at the upper end of the shaft. The lower end is a landing door that is guided to a sill 6 laid on the landing floor 2, 7 is an engaging element that is attached to the landing door 4 and protrudes toward the side of the car door 17 that comes out later, and 8 is attached to the landing door 4. Engagement element 7
The engaging element 7 is arranged near the shaft and protrudes toward the hoistway side.
A protective piece made of a non-metallic elastic material such as synthetic resin or rubber is formed to extend a little further than 9, and 9 is two guide rails erected perpendicularly to the hoistway; 10
is a cage placed between guide rails 9, 9,
Guide rollers 11 are pivotally connected to the upper and lower parts of the car frame 10 and come into contact with the surface of the guide rail 9, and roll on the surface of the guide rail 9 when pressed by a pressure spring 12; 13 is supported by the car frame 10; Basket, 14 is the floor of basket 13, 15 is basket frame 1
0, a support member 16 is a door rail fixed to the support member 15, 17 is arranged at the car entrance and exit, and a roller 18 that rolls on the door rail 16 is pivotally attached to the upper end, and the lower end is laid on the car floor 14. Threshold 19
An engaging element 20 is attached to the car door 17 and protrudes toward the landing door 4. An engaging element 21 is attached to the side of the engaging element 20 and projects toward the landing door 4 from the tip of the engaging element 20. This is a protective piece that extends slightly and is made of the same material as the protective piece 8.

That is, while the car 13 is running, the engagers 7, 20
Since an appropriate gap is maintained between them as shown in FIG. 2, there is no problem in the running of the car 13. When the car 13 lands on the landing floor 2, the car door 17 begins to open by a drive machine (not shown). Although details are omitted, due to the operation of the car door 17, the engaging element 20 engages with the engaging element 7, and the landing door 4
It opens in conjunction with the basket door 17. The same applies when the car door 17 is closed.

While the car 13 was running, a passenger became violent and the push spring 12
When the cage 13 expands and contracts and the car 13 swings, the engager 20 comes into contact with the sill 6 and the engager 8 comes into contact with the sill 19, respectively, as described above. However, before the above contact occurs, the protective piece 21 is placed on the threshold 6, and the protective piece 8 is placed on the threshold 19.
Since the two contact each other, collisions between the two are buffered, and the generation of abnormal noise is also reduced. Therefore, it is possible to narrow the gap between the thresholds 6 and 19 to an extent that does not interfere with normal operation.

In the embodiment, the protective piece 8 is placed on the landing door 4, and the protective piece 2 is placed on the landing door 4.
1 is provided on each engaging element 20, but the protective piece 8 may be provided on the engaging element 7, and the protective piece 21 may be provided on the car door 17. Further, the protective pieces 8 and 21 may be provided on both the landing door 4 and the car door 17.

FIG. 3 shows another embodiment of this invention.

In this embodiment, an engaging element 20 is attached to a car door 17 via an elastic cushioning material 22 such as rubber.
Other than this, it is the same as in FIGS. 1 and 2.

The impact when the protective piece 21 contacts the threshold 6 is
Since it is also buffered by the buffer material 22, the occurrence of abnormal noise becomes much smaller.

As explained above, in this invention, engaging elements that protrude toward each other are provided on each of the facing surfaces of the car door and the landing door, and the car door and the landing door are opened and closed in conjunction with each other by the engagement of these engaging elements. In this elevator door device, a protective piece made of a non-metallic elastic material is provided at or near the engaging element, protrudes in the protruding direction of the engaging element, and extends further than the engaging element. If the gap between the thresholds is narrowed to the extent that it does not interfere with getting on and off the wheelchair, it is possible to reduce the noise generated even if the engaging element and the threshold come into contact.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing one embodiment of an elevator door device according to this invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1 (partially omitted), and Fig. 3 is another embodiment of this invention. 2 is a partial view of the engager of the car door in FIG. 1. FIG. 4... Landing door, 7... Engagement element, 8... Protection piece,
17...basket door, 20...engaging element, 21...protective piece. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In an elevator door device, an engaging element is provided on each of the opposing surfaces of the car door and the landing door, and the engaging elements project toward each other, and the engaging elements open and close the car door and the landing door in conjunction with each other. An elevator door device comprising a protective piece made of a non-metallic elastic material, provided at or near the engaging element, protruding in the direction of projection of the engaging element, and extending further than the engaging element.