KR100271023B1 - Sill door open and close device of a elevator - Google Patents

Abstract

PURPOSE: A landing door opening device is provided to damp noise generated by friction during opening of the landing door interlocked with a car door in an elevator and to save manufacture cost according to simplification of structure and to improve productivity in manufacturing of landing door. CONSTITUTION: At both upper sides of a landing door support(1) installed at each floor where an elevator car stops, guide rollers(2) are respectively established. Intermediate the guide rollers, a guide rope(5) interlocking left and right symmetric movement of primary and secondary landing doors(3,4) is arranged. In a guide rail(6) at a lower region of the landing door support(1), the primary and secondary hanger plates(8,9) connected by support ropes(7) and by the guide rope(5) and horizontally moving along the guide rail(6) are installed for holding the landing doors(3,4) in a hung state. On the other end of a fixing rope(10), a primary weight(13) is linked and at a bottom end of the primary weight, one end of a primary spring(14) that is an elastic instrument is joined. At the other end of the primary spring, a secondary weight(15) is coupled while at the bottom end of the secondary weight, one end of the secondary spring(16) is linked.

Description

Elevator door opening and closing device {SILL DOOR OPEN AND CLOSE DEVICE OF A ELEVATOR}

The present invention relates to a lift door opening and closing device of an elevator, and more particularly, to reduce the phenomenon that noise is generated by friction when opening and closing the lift door interlocked with the car door of the elevator.

In general, elevators are mainly installed in apartments, buildings, etc., and are devices for conveniently moving passengers from one point to another while rising or descending in a vertical direction. The boarding door opening and closing device is installed on each floor where the car stops. As the door door opening and closing device, the landing door is opened and closed by interlocking with the car door by the drive device of the car door without a separate driving device. The clutch mechanism which enables the interlocking operation is subordinated to the operation of the car door. Done.

However, after the interlocking relationship between the car door and the boarding door is released, that is, if the boarding door is opened while the car is not stacked, there is a risk of causing a serious accident, so the boarding door is automatically closed when the car is not stacked. It is the landing door opening device that serves to maintain.

Conventional elevator door opening and closing device as shown in Figure 1a to Figure 3, the guide roller (2) is provided on each of the upper sides of the landing door support (1) installed on each floor where the car stops, the guide roller (2) Between the guide ropes (5) for interlocking the left and right symmetrical movement of the first and second landing doors (3a) (4) is provided, the guide rails (6) installed in the lower portion of the landing door support (1) The first and second hangers connected to the guide ropes 5 and the support ropes 7 while moving horizontally along the guide rails 6 by supporting the first and second boarding doors 3a and 4 in a suspended state. Plates 8 and 9 are installed.

In addition, the guide member 17 is installed in the first boarding door 3a in a state of being supported by the fixing piece 18, and in the state where the car is not laminated inside the guide member 17, the first and second doors 1 and 2 are installed. When the landing doors 3a and 4 are opened, weights 13a are provided to allow the first and second landing doors 3a and 4 to be closed by gravity by the guidance of the guide member 17. The second hanger plate 9 is provided with a support piece 11 to which one end of the fixing rope 10 is fixed, and the support rope 10 is wound around the first hanger plate 8 by way of the support roller ( 12 is installed, the other end of the fixing rope 10 is configured so that the weight (13a) is connected.

Therefore, in the guide member 17 provided in the state supported by the fixing piece 18 in the 1st boarding door 3a in the state which the 1st 1st boarding door 3a, 4 which cooperates with a cardor is closed, The weight 13a is positioned at the lower end of the first boarding door 3a as shown in FIG. 1A, and when the first and second boarding doors 3a and 4 are opened by a car door, the guide as shown in FIG. 1B. By the guidance of the member 17, the weight 13a is in a position raised by the width of the doorway, where the weight 13a is provided with a position energy sufficient to close the first and second boarding doors 3a and 4 by itself. Will have

On the other hand, even if the first and second boarding doors 3a and 4 are opened in a state where the car is not stacked, the first and second boarding doors 3a and 4 are closed by the potential energy by the weight 13a, so an accident occurs. It can be prevented and will always be closed in the absence of external force.

However, such conventional weights 13a cause friction with the inner surface of the guide member 17 while raising and lowering in the up and down directions when opening and closing the first and the second landing doors 3a and 4, thereby making noise. The generation of noise is an element that prevents the opening and closing of the quiet first and second boarding doors 3a and 4, which gives passengers anxiety and discomfort, and reduces the weight 13a as shown in FIG. Even if the shoe (19) made of urethane material on the friction surface of the noise is not significantly reduced, the noise increases more as the opening and closing speed of the first and second boarding doors (3a) (4) is faster. In addition, the manufacture and assembly of the guide member 17 at the time of manufacture of the 1st and 2nd entrance doors 3a and 4 become a bottleneck process, and there exist many problems, such as acting as a factor of a cost increase.

Accordingly, the present invention is to solve the above problems, it is possible to reduce the noise caused by the friction when opening and closing the entrance door interlocked with the car door of the elevator can operate the elevator to have a comfortable ride in a quiet state Rather, it is an object of the present invention to provide a lift door opening and closing device of an elevator that can reduce the production cost and improve productivity according to the simplified structure of the lift door.

1A and 1B are front views respectively showing a state in which the elevator door of the conventional elevator is closed and opened;

FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1B

3 is a front view illustrating the weight of FIGS. 1A to 2;

Figures 4a and 4b is a front view showing a state in which the landing door according to the invention is closed and open respectively

Explanation of symbols on the main parts of the drawings

One; Boarding door support 3; 1st landing door

4; Second landing door 5; Guide rope

6; Guide rail 8; First hanger plate

9; Second hanger plate 10; Fixing rope

13; First weight 14; First spring

15; Second weight 16; 2nd spring

In order to achieve the above object, the present invention supports the first and second boarding doors in a suspended state to the guide rails below the boarding door support and moves horizontally along the guide rails and is connected to the guide ropes and the supporting ropes, respectively. In the elevator door opening and closing device of the elevator in which a two hanger plate is installed and a fixing rope is connected between a support piece of the second hanger plate and a support roller of the first hanger plate, respectively, via a support roller of the first hanger plate. The first weight is connected to close by gravity when the first and second landing doors are opened in the state that the car is not laminated to the other end of the fixing rope, and one end of the first spring, which is an elastic means, is connected to the lower end of the first weight. The second weight is connected to the other end of the first spring, the lower end of the second weight of the second spring which is an elastic means One end is connected, the other end of the second spring is provided with the elevator door opening and closing device of the elevator, characterized in that fixed to the lower end of the first landing door.

Hereinafter, preferred embodiments of the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

4A and 4B are front views each showing a state in which the boarding door according to the present invention is closed and opened, and the same parts as in the prior art are denoted by the same reference numerals to describe the present invention.

According to the present invention, guide rollers 2 are respectively provided on both upper sides of the boarding door support 1 provided on each floor where the car of the elevator stops, and the first and second boarding doors 3 (between the guide rollers 2) ( Guide ropes (5) for interlocking the left and right symmetrical movement of 4) is installed, the first and second boarding doors (3) (4) to the guide rail (6) installed on the lower part of the boarding door support (1) The first and second hanger plates (8) 9 (9), which are supported in a suspended state and move horizontally along the guide rails (6), are connected to the guide ropes (5) and the support ropes (7), respectively.

In addition, the second hanger plate (9) is provided with a support piece (11) on which one end of the fixing rope (10) is fixed, and the supporting rope (10) is wound around the first hanger plate (8). (12) is installed, the other end of the fixing rope 10, the plurality of weights for closing by gravity when the first and second boarding doors (3) (4) is opened in the state that the car is not laminated, the elastic means Is connected and installed by.

That is, the first weight 13 is connected to the other end of the fixing rope 10, one end of the first spring 14, which is an elastic means, is connected to the lower end of the first weight 13, and the first spring 14 is connected. The other end of the second weight 15 is connected to, the lower end of the second weight 15 is connected to one end of the second spring 16, which is an elastic means, the other end of the second spring 16 is the first lift It is configured to be fixed to the bottom of the door (3).

The present invention configured as described above, as shown in Figure 4a and 4b, when the first and second boarding doors (3) (4) interlocked with the car door of the elevator is opened as shown in Figure 4b in a closed state as shown in Figure 4a First, the guide ropes 5 and the support ropes of the guide rollers 2 installed on the upper both sides of the boarding door support 1 on the guide rails 6 below the boarding door support 1 installed on each floor where the car stops. The first and second hanger plates 8 and 9 connected and connected to each other 7 are moved along the guide rails 6 and are suspended from the lower parts of the first and second hanger plates 8 and 9. The first and second boarding doors (3) (4) installed as to move in conjunction.

At the same time, one end is fixed to the support piece 11 installed on the second hanger plate 9 so that the first weight 13 is connected to the other end via the support roller 12 installed on the first hanger plate 8. As the fixing rope 10 is opened in conjunction with the opening of the first and second boarding doors 3 and 4, the fixing rope 10 is raised so that the first weight 13 connected to the other end of the fixing rope 10 is fixed. ) Will rise.

At the same time, while the first spring 14 having one end connected to the lower end of the first weight 13 is tensioned, the second weight 15 connected to the other end of the first spring 14 is raised and at the same time, the second weight One end is connected to the lower end of the 15 and the other end of the first and second boarding doors 3 as shown in FIG. 4B while maintaining the tensioned state of the second spring 16 fixed to the lower end of the first boarding door 3. (4) is opened.

Thereafter, when the first and second boarding doors 3 and 4 are closed while the first and second boarding doors 3 and 4 are opened as shown in FIG. 4B, the first and second weights are operated while operating in the above-described reverse order. The first and second boarding doors 3 and 4 are closed as shown in FIG. 4A by the self-weight of the 13 and 15 and the elastic restoring force of the first and second springs 14 and 16.

Therefore, when the opening and closing of the first and second landing doors 3 and 4, the conventional weight 13a can greatly reduce the noise generated by friction with the inner surface of the guide member 17. The first and second springs 14 and 16 can be effectively prevented from being separated from the first and second weights 13 and 15 without providing the member 17.

As described above, the present invention can significantly reduce the noise generated by friction when the door is opened and closed in conjunction with the car door of the elevator, so that the elevator can be operated to have a comfortable ride in a quiet state. The production cost can be reduced by reducing the parts used because there is no need to install a separate guide member to guide the departure of the weight, and there are many advantages such as increased productivity due to the simplification of the structure when manufacturing the landing door. It is a very useful invention provided.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention may be commonly used in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the following claims. Anyone with knowledge will be able to make various changes.

Claims (1)

The first and second hanger plates are supported on the guide rails below the landing door support in a suspended state and are horizontally moved along the guide rails, and the first and second hanger plates connected to the guide ropes and the supporting ropes are respectively installed. In the elevator door opening and closing device of an elevator, in which a fixing rope is connected between a support piece of a hanger plate and a support roller of a first hanger plate, the car is not laminated to the other end of the fixing rope via the support roller of the first hanger plate. In the state, when the first and second landing doors are opened, the first weight is connected to close by gravity, one end of the first spring, which is an elastic means, is connected to the lower end of the first weight, and the other end of the first spring is connected to the first weight. 2 weights are connected, one end of the second spring which is elastic means is connected to the lower end of the second weight, and the other end of the second spring 1 seungjang seungjang door opening and closing device for an elevator, characterized in that fixed to the bottom of the door.