JP2002104758A - Door device of elevator landing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate external force in a lateral direction from a landing side in a door device of a landing, and prevent transverse movement of a landing door. SOLUTION: A vertically movable stopper 26 is arranged in the inside of a guide rail 22 of the landing door 10. The stopper 26 is provided with a slope 26a in both end parts positioned in the guide rail 22, the slope 26a is pressed up by a guide roller 14 when the landing door 10 is in closing action, so as to protrude the stopper 26 from the guide rail 22, transverse movement of the landing door 10 is regulated. The guide roller 14 is separated from the slope 26a when the landing door 10 is in opening action, so as to store the stopper 26 in the guide rail 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for an elevator landing, and more particularly to a door device for an elevator landing which reinforces a supporting force of the landing door against a lateral external force from the landing side.

[0002]

2. Description of the Related Art As a door device of an elevator, a sill groove is provided on the upper surface of a floor of a car or a landing, a door shoe protruding from a door is inserted into the sill groove, and the door shoe is guided by the sill groove to open and close the door. The device is common.
However, foreign substances such as stones, sand, and dust easily enter the sill groove of the door device, and a door device that has improved such a door device and does not require a sill groove has been proposed.

Here, an embodiment of a door device which does not require a threshold groove will be described with reference to the drawings. FIG. 6 is a diagram showing the structure of a door device of an elevator hall, and FIG.
It is the side sectional view seen from the B line.

[0006] As shown in FIG. 6, a rollable guide roller 14 is attached to a lower portion of the landing door 10 via an attachment member 12. More specifically, a reinforcing member 16 for reinforcing the hall door 10 is welded inside the hall door 10, and the upper part of the mounting member 12 is
The guide roller 14 is fixed to the lower part of the mounting member 12 by a screw 18 or the like. Multiple guide rollers 1
4 supports the landing door 10 and rolls in a guide rail to be described later to open and close the landing door 10.

As shown in FIG. 7, a guide rail 22 extends on the floor surface of the hall 24 inside the hall door 10 in parallel with the hall door 10, and the guide roller 14 rolls therein. Mounting member 12 fixed to landing door 10
Is bent so as to bypass the edge of the guide rail 22, and the guide roller 14 is inserted into the guide rail 22 from the opened side surface.

[0006]

There is a case where a truck loaded with luggage or the like collides with the door device of such a landing from the landing 24 side. In such a case, the landing door 10 is pushed to the car side by an external force from the lateral direction.

As a result, the mounting member 12 is deformed and comes into contact with a member on the car side, generating an abnormal sound or preventing smooth movement of the landing door.

When the guide roller 14 is displaced from a predetermined position and comes into contact with the side surface of the guide rail 22, the side surface where the guide roller 14 and the guide rail 22 come into contact may be deformed. In addition, as compared with the above-described conventional door device having a door shoe and a threshold groove, the guide roller 14
Since the receiving area of the guide rails 22 for receiving the landing is small, there is a problem that the landing door does not always have a sufficient supporting force against the external force from the landing side in the lateral direction.

In view of the above, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a landing door device with a stopper for restricting a lateral external force from the landing side so as to enhance the supporting force of the landing door. With the goal.

It is another object of the present invention to provide a stopper which does not prevent a passenger from getting on and off the elevator car.

[0011]

According to the present invention, a door device for an elevator hall is provided with a guide rail provided on the hall floor inside the hall door and a lower part of the hall door for supporting the hall door so that it can be opened and closed. A guide roller that rolls in the guide rail, the elevator hall door device includes a stopper that is vertically movable inside the guide rail, and the stopper is inclined at both ends located in the guide rail. A surface is provided, and at the time of closing the landing door, the guide roller pushes up the inclined surface, so that the stopper projects from the guide rail and regulates the lateral movement of the landing door,
During the opening operation of the landing door, the stopper is housed in the guide rail by separating the guide roller from the inclined surface.

Further, the stopper of the door device of the elevator hall according to the present invention is housed and moved in the guide rail by its own weight when the hall door is opened.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention (hereinafter, referred to as embodiments) will be described below with reference to the drawings.

FIG. 1 is a view showing the entire structure of a door device of an elevator hall according to the present embodiment, and FIG.
It is the side sectional view seen from the A line. In this case, the same reference numerals are given to the same or corresponding parts as the members of the conventional elevator hall door device shown in FIGS. 6 and 7.

As shown in FIGS. 1 and 2, also in this embodiment, a plurality of guide rollers 14 are provided below the landing door 10, and the guide rollers 14 support the landing door 10 and guide rails. Rolling through the inside of the landing door 10
Opening and closing movement.

A feature of the present invention is that the door device of the elevator hall is provided with a stopper 26 for regulating a lateral external force from the hall 24 side inside the guide rail 22 so as to be vertically movable. is there.

FIG. 3 is an enlarged view of the stopper according to the present embodiment. As shown in FIG. 3, the stopper 26 has a symmetrical shape with wing-like members protruding from both sides from the upper portion of the central portion. An inclined surface 26 a is formed below the wing-shaped member of the stopper 26, and a pair of guide shafts 28 are fixed to the side surface of the stopper 26.

The inclined surface 26a is formed below the wing-shaped member and is inclined downward from both ends toward the center. When the stopper 26 is disposed on the guide rail 22, the inclined surface 26a is formed.
6a are formed at both ends located inside the guide rail 22. With the inclined surface 26a configured as described above, the guide roller 14 that rolls in the guide rail 22 can push up the inclined surface 26a as described later.

In this embodiment, as shown in FIG. 2, an opening 30 is formed on the upper surface of the guide rail 22 on which the stopper 26 is disposed. Opening 30
Are formed in a size that allows a stopper piece on the upper part of the stopper 26 to protrude.
Thereby, the stopper 26 can move up and down in the guide rail 22. As a result, when the guide roller 14 rolling in the guide rail 22 pushes up the inclined surface 26a,
The stopper piece of the stopper 26 projects from the opening 30.
Therefore, the stopper 2 projecting from the guide rail 22
6 when the landing door 10 is fully closed.
Lateral external force such as when a bogie collides from the side can be restricted. It is preferable that the gap between the stopper 26 and the opening 30 is small.
It is possible to prevent foreign matters such as stones, sand, dust and the like from being mixed into the guide rail 22 from the gap.

Here, the projecting operation of the stopper 26 will be described.

When the landing door 10 is closed, that is, when the guide roller 14 rolls toward the center, the guide roller 14 enters below the stopper 26, and the inclined surface 26a
Contact After the guide roller 14 comes into contact with the inclined surface 26a, the inclined surface 26a is pushed from both sides by the guide roller 14 as the guide roller 14 moves to the center, and the inclined surface 26a is pushed up. As a result, the stopper 26 housed in the guide rail 22 can protrude from the opening 30. When the landing door 10 is fully closed, the guide roller 14 stops in a state where the guide roller 14 and the inclined surface 26 a of the stopper 26 are in contact with each other, and the pushed-up stopper 26 projects the stopper piece from the opening 30. Will be maintained.

Therefore, when a bogie or the like collides from the landing 24 side, the stopper 26 regulates the external force from the lateral direction and can prevent the landing door 10 from moving laterally.

When the landing door 10 is opened, that is, when the guide roller 14 rolls outward from the center, as the guide roller 14 moves away from the inclined surface 26a, the stopper 26 causes the stopper 26 to move inside the guide rail 22 by its own weight. Falling down to. As a result, the stopper 26 is stored in the guide rail 22. That is, the guide roller 14
Is moved away from the inclined surface 26a, the stopper 26 is stored and moved in the guide rail 22.

Therefore, when the landing door 10 is open, the stopper 26 is housed in the guide rail 22, so that there is an advantage that the occupant does not hinder getting on and off the elevator car.

As shown in FIGS. 1 and 2, in the present embodiment, a connecting member 34 provided with a pair of long holes 32 is provided.
Are attached by connecting the upper and lower side surfaces of the guide rail 22. The above-described guide shaft 28 is connected to the long hole 3 of the connecting member 34.
2 so as to be able to move up and down. As a result, when the guide roller 14 pushes down the inclined surface 26a, the guide shaft 2
8 moves up and down in the long hole 32, so that the stopper 2
6 can be guided up and down.

A connecting member 34 attached to the guide rail 22 connects the central upper and lower side surfaces of the guide rail 22. Therefore, the supporting force of the side surface of the guide rail 22 against the external force from the lateral direction is reinforced. As a result, when the guide roller 14 and the guide rail 22 come into contact with each other by receiving a lateral external force from the landing 24 side, deformation of the guide rail 22 can be prevented.

Next, the overall operation of the elevator landing door device of the present embodiment will be described.

FIG. 4 is a view showing the state of the stopper when the landing door is open, and FIG. 5 is a view showing the state of the stopper when the landing door is closed.

As shown in FIG. 4, when the landing door 10 is open, the stopper 26 is housed in the guide rail 22 and the upper surface of the stopper 26 is
2 is flush with the upper surface. As a result, the occupant can smoothly get on and off the vehicle, and foreign substances such as stones, sand, and dust are prevented from entering the guide rail 22 from the opening 30.

When the landing door 10 is closed, the guide roller 14 rolls to the center, enters below the stopper 26, and pushes up the inclined surface 26a of the stopper 26.
At this time, the guide shaft 28 moves upward in the elongated hole 32,
The stopper 26 is moved upward in parallel. Landing door 10
5, the guide roller 14 stops in a state where the guide roller 14 and the inclined surface 26a of the stopper 26 are in contact with each other, and the stopper piece of the stopper 26 projects from the opening 30 as shown in FIG. maintain.

Therefore, when a bogie or the like collides from the landing 24 side, the stopper piece of the stopper 26 supports the landing door 10 so that the external force in the lateral direction can be restricted.
Lateral movement of the landing door 10 can be prevented.

When the landing door 10 is fully closed, the stopper 2
Most of the wing-shaped members of No. 6 have moved to the position of the upper side surface of the guide rail 22. As a result, when the stopper 26 protruding from the guide rail 22 receives an external force from the lateral direction of the landing door 10, the wing-like portion of the stopper 26 can also receive the external force, and the supporting force of the landing door is reinforced.

When the landing door 10 is opened, that is, when the guide roller 14 rolls outward, the guide roller 14 separates from the inclined surface 26a, and the stopper 26 is stored in the guide rail 22 again by its own weight. At this time, it is also preferable that the stopper 26 be accommodated and moved in the guide rail 22 by attaching an elastic member such as a spring between the stopper 26 and the guide rail.

The present invention may be applied to a door device in which an elevator door is hung on a rail above an entrance, and a door shoe provided at a lower portion of the door is guided by a sill groove to open and close the door. .

[0035]

As described above, according to the present invention, since the stopper which protrudes from the guide rail is provided when the landing door is closed, the supporting force of the landing door against the lateral external force from the landing side is provided. And the lateral movement of the landing door can be prevented.

Further, since the stopper is stored in the guide rail when the landing door is open, it is possible to provide a stopper which does not prevent the occupant from getting on and off the elevator car.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a structure of a door device of an elevator hall according to an embodiment.

FIG. 2 is a side sectional view taken along line AA of FIG.

FIG. 3 is an enlarged perspective view of a stopper according to the embodiment.

FIG. 4 is a diagram showing a state of a stopper when a landing door is open.

FIG. 5 is a diagram illustrating a state of a stopper in a state where a landing door is closed.

FIG. 6 is a diagram showing a structure of a door device of an elevator hall.

FIG. 7 is a side sectional view taken along line BB of FIG. 6;

[Explanation of symbols]

10 hall door, 12 mounting member, 14 guide roller, 16 reinforcing member, 18 screw, 20 shaft, 22
Guide rail, 24 landing, 26 stopper, 26a
Inclined surface, 28 guide shaft, 30 opening, 32 slot,
34 connecting members.

Claims (2)

[Claims] 1. A guide rail provided on a landing floor inside a landing door, and a guide roller provided on a lower portion of the landing door and rolling in the guide rail to support the landing door so that it can be opened and closed. A door device for an elevator hall comprising: a stopper disposed movably up and down inside the guide rail, wherein the stopper has inclined surfaces provided at both ends located in the guide rail, and a closing operation of the hall door. Sometimes, the guide roller pushes up the inclined surface so that the stopper protrudes from the guide rail to restrict lateral movement of the landing door, and when the landing door is opened, the guide roller separates from the inclined surface and the stopper is stored in the guide rail. A door device for an elevator hall, characterized in that: 2. The elevator landing door device according to claim 1, wherein the stopper is housed and moved in the guide rail by its own weight when the landing door is opened.