KR20130017767A - Opening and closing structure of elevator door - Google Patents

Abstract

PURPOSE: An opening and closing structure of an elevator door is provided to prevent falling accidents by allowing a door to be opened in a limited section to make passengers safely escape from an elevator in emergency. CONSTITUTION: An opening and closing structure of an elevator door comprises a first guide frame(100), a first fixed frame(200), a first coupling member(300), a second guide frame, a third guide frame, a second fixed frame, and a second coupling member. The first guide frame is installed in front of a first opening and closing part(10) arranged above a door panel(11) of an elevator car. One side of the first fixed frame is fixed on the first opening and closing part, and a fixing through-hole is formed in the other side thereof. The first coupling member is installed above the door panel and has a first hook(310) selectively coupled to the first fixing through-hole. The second guide frame is selectively coupled to the door panel when the elevator car is entered and is installed in front of a second opening and closing part. The first hook and the first fixing through-hole are released to open the door panel.

Description

Opening and closing structure of elevator door {.}

The present invention relates to an opening and closing structure of the elevator door, and more particularly, opening and closing of the elevator door that can prevent the fall accident during the rescue of the occupant by allowing the opening of the door only in a limited section so that the occupant in the elevator car can safely escape in an emergency. It's about structure.

In general, the opening and closing structures of elevator doors and door panels, which are applied to officetels, shopping malls, factories, apartments, and factory buildings, are respectively provided with openings and closing portions on the inner walls of the elevator car and the elevator entrance, and when the two openings are connected, the doors are opened and closed. do.

However, the conventional elevator as described above has the advantage that it is easy to rescue the occupants in the elevator car by opening the door at any position, if there is a key of the elevator door in an emergency, the embarrassing passengers between the elevator car and the wall of the building There was a problem that could fall into space.

As the above problems occur, recently, the elevator door is set to open the section, the safety regulations for the escape of the occupants in an emergency is regulated by the elevator related law.

In addition, the fall prevention panel has to be installed from the lowest floor to the top floor in order to prevent the occurrence of the fall accident as described above, there was a problem that the elevator installation cost increases.

The present invention has been made to solve the above-described problems, an object of the present invention is to allow the opening of the door only in a limited section so that the occupant in the elevator car can safely escape in an emergency elevator door that can prevent a crash in the rescue of the occupant And to provide an opening and closing structure of the door panel.

In order to solve the above problems, the opening and closing structure of the elevator door according to the present invention is installed on the front of the first opening and closing part 10 provided on the door panel 11 of the elevator car, the first installed in the vertical direction A guide frame 100; and a first fixing frame 200 having one side fixed to the first opening / closing part 10 and a first fixing hole 210 formed at the other side thereof; and the door panel 11 of the guide frame 100. It is installed at the top and operated together, one side of the first coupling member 300 is provided with a first hook 310 is selectively coupled to the first fixed through hole 210; And, installed on the inner wall of the building elevator entrance When the elevator car enters, the door panel 11 is selectively coupled to the front of the second opening and closing part 20 is provided with a door that is opened and closed together, and installed in the vertical direction, the first hook 310 and the first 1 disengage the coupling of the fixed through-hole 210 to open the door panel 11 And a second guide frame 400 which is installed at the front of the second opening / closing part 20 so that the first hook 310 is coupled to the first fixing through hole 210 when the door panel 11 is closed. And a third guide frame 500 which is fixed to one side of the second opening / closing portion 20 and a second fixing frame 600 having a second fixed through hole 610 on the other side thereof. Installed in and operated together, one end is provided with a second hook 710 selectively coupled to the second fixed through hole 610, when the elevator car enters the building elevator entrance, the first guide frame 100 A second coupling member 700 for disassembling the coupling of the second fixed through hole 610 and the second hook 710 to open the door by the;

In addition, the first fixing frame 200 and the second fixing frame 600 is provided at the other end of the end, the first fixed through hole 210 and the second fixed through hole 610 end of the inclined slope ( 220, 620); characterized in that it is further included.

In addition, the first coupling member 300 and the second coupling member 700, the coupling frame (320, 720) is provided on the back to be coupled to the door panel 11 and the door, respectively; and the coupling frame Rotation shafts 330 and 730 provided in the 320 and 720, and rotation frames 340 and 740 coupled to the outer circumferential surfaces of the rotation shafts 330 and 730, and the rotation frames 340 and 740. Combined, the lower rollers (350, 750) are installed on the same axis as the rotating shaft (330, 730); And, upper roller support (341, 741) formed on the upper side of the rotating frame (340, 740); and The upper rollers 360 and 760 are coupled to the upper roller supports 341 and 741, and are positioned above the lower rollers 350 and 750 and are installed to be biased toward one side about the rotation shafts 330 and 730. And; first rotation control frames 321 and 721 formed on the coupling frames 320 and 720; and the first rotation control frames 321 and 72 formed on the rotation frames 340 and 740. 1) second rotation control frames 342 and 742 provided on the upper portion; and rods inserted from the first rotation control frames 321 and 721 and penetrating to the outside of the second rotation control frames 342 and 742. 370 and 770; and the rods 370 and 770 are installed on the upper surfaces of the second rotation control frames 342 and 742, and the elastic adjustment nuts are provided at the upper ends of the rods 370 and 770. (371, 771) is provided, the spring member (380, 780) is increased and decreased in the upward rotation of the rotating frame (340, 740); is provided, the spring member (380, 780) is the second Lower plates 381 and 781 in contact with the upper surfaces of the rotation control frames 342 and 742; and springs 382 and 782 whose lower ends are supported by the upper surfaces of the lower plates 381 and 781; The upper plates 383 and 783 coupled to the upper ends of the 782 are included, and the stoppers 390 and 790 for controlling the rotation of the rotating frames 340 and 740 are included.

In addition, the first guide frame 100, the second guide frame 400 and the third guide frame 500, the coupling bar (110, 410, 510) is provided on the back; and the coupling bar 110, 410, 510 is installed on the front, the lower portion of the first inclined surface 120, 420, 520 inclined to one side to contact the upper rollers (360, 760); and the first inclined surface (120, 420, 520) The vertical surfaces 130, 430, and 530 which are continuously formed at the upper end of the upper surface and guide the upper rollers 360 and 760 in the vertical direction, which are formed in the vertical direction and pass through the first inclined surfaces 120, 420, and 520. And second inclined surfaces 140, 440, and 540 that are continuously formed on the upper ends of the vertical surfaces 130, 430, and 530, and are inclined to the other side.

According to the present invention as described above, there is an advantage that can prevent the fall accident during the rescue of the occupant by allowing the opening of the door only in a limited section so that the occupant in the elevator car can safely escape in an emergency.

1 is a front view of the elevator car of the opening and closing structure of the elevator door according to an embodiment of the present invention,
Figure 2 is a front view of the second opening and closing portion provided on the inner wall of the elevator door opening and closing structure of the elevator door according to a preferred embodiment of the present invention,
3 is a perspective view of the first coupling portion and the second coupling portion of the opening and closing structure of the elevator door according to an embodiment of the present invention,
Figure 4 is an exploded perspective view of the first coupling portion and the second coupling portion of the opening and closing structure of the elevator door according to an embodiment of the present invention,
5 is a state diagram showing a state in which the first coupling part and the second coupling part of the opening and closing structure of the elevator door according to the preferred embodiment of the present invention are disengaged from the first fixing frame and the second fixing frame;
Figure 6 is a state diagram showing the first coupling portion and the second coupling portion of the opening and closing structure of the elevator door according to an embodiment of the present invention as shown along the first guide frame, the second guide frame and the third guide frame.

Hereinafter, with reference to the accompanying drawings, it will be described embodiments of the present invention. Like reference numerals in the drawings denote like elements. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a front view of an elevator car of the opening and closing structure of the elevator door according to a preferred embodiment of the present invention, Figure 2 is a second opening and closing portion installed on the inner wall of the elevator door of the opening and closing structure of the elevator door according to a preferred embodiment of the present invention 3 is a perspective view of the first coupling portion and the second coupling portion of the opening and closing structure of the elevator door according to a preferred embodiment of the present invention, Figure 4 is a first opening and closing structure of the elevator door according to a preferred embodiment of the present invention 5 is an exploded perspective view of the first coupling part and the second coupling part, FIG. 5 shows that the first coupling part and the second coupling part of the opening and closing structure of the elevator door according to the preferred embodiment of the present invention are combined with the first fixing frame and the second fixing frame. Figure 6 is a state showing the disassembled state, Figure 6 is a first coupling part and the second coupling portion of the opening and closing structure of the elevator door according to a preferred embodiment of the present invention, the first guide frame, second Id is a frame and a state diagram showing a state that rises along the third guide frame.

The present invention is to be installed in the elevator of the building commonly seen in the surroundings, it can be installed in the newly built building, or can be easily installed in the elevator of the existing building.

In addition, prior to the detailed description of the present invention, if the elevator car with the passengers inside the elevator door coincides, the roller and the door and the door panel to be opened and closed at the same time, and are moved by this roller, respectively to the door and the door panel Coupling of the wire to be connected, the sensor for detecting the door and the door panel, the safety scaffold and the safety tongue (tongue), etc. are well known in the art, so a detailed description thereof will be omitted.

Elevator door opening and closing structure according to a preferred embodiment of the present invention is the first guide frame 100, the first fixing frame 200, the first coupling member 300, the second guide frame 400, the third guide frame 500, the second fixing frame 600, the second coupling member 700 are included.

The first guide frame 100, the second guide frame 400 and the third guide frame 500 are members having the same shape, and the first fixing frame 200, the second fixing frame 600 and the first The coupling member 300 and the second coupling member 700 are also members having the same shape, and each of these members differs only in a position and a direction in which the coupling members are installed.

As illustrated in FIG. 6, the first guide frame 100, the second guide frame 400, and the third guide frame 500 may include coupling bars 110, 410, and 510 and first inclined surfaces 120 and 420. , 520, a vertical surface 130, 430, 530, and a second inclined surface 140, 440, 540, wherein the first guide frame 100 has a passenger boarding as shown in FIG. 1. It is installed in the vertical direction on the front of the first opening and closing part 10 provided on the upper door panel 11 of the elevator car.

In addition, the second guide frame 400 and the third guide frame 500 are members which are installed up and down on the front of the second opening and closing part 20 installed on the wall of the inside of the elevator entrance installed on each floor of the building. The vertical parts of the second guide frame 400 and the third guide frame 500 are installed to face each other.

The first inclined surface 120, the vertical surface 130 and the second inclined surface 140 of the first guide frame 100 as described above are in contact with the upper roller 360 of the first coupling member 300 to be described later. The first and second inclined surfaces 420 and 520, the vertical surfaces 430 and 530, and the second inclined surface of the second guide frame 400 and the third guide frame 500 serve to allow opening and closing of the door panel. 440 and 540 are in contact with the upper roller 760 or the lower roller 750 of the second coupling member 700 serves to allow the opening and closing of the door 11 installed on each floor of the building.

In addition, the first guide frame 100, the second guide frame 400 and the third guide frame 500 as described above is provided with a coupling bar (110, 410, 510) on the back, respectively, such a coupling bar 110 , 410, 510 serves to enable the guide frame 100, 400, 500 as described above to be fixed to the front of the first opening and closing part 10 and the second opening and closing part 20.

Meanwhile, the first inclined surfaces 120, 420, and 520 of the first guide frame 100, the second guide frame 400, and the third guide frame 500 as described above may include the first coupling member 300 and the first coupling frame 300. Rotates the second coupling member 700 to separate the first hook 310 and the second hook 710 from the first fixed frame 200 and the second fixed frame 600, the first hook 310 ) And the second hook 710 is rotated and formed to be inclined to one side so that the upper rollers 360 and 760 are folded.

In addition, the lower end of the vertical surface (130, 430, 530) is formed continuously with the first inclined surface (120, 420, 520), is formed in the vertical direction to move along the first inclined surface (120, 420, 520) The upper rollers 360 and 760 are supported to maintain the first hook 310 and the second hook 710 in a rotated state, and the upper ends of the vertical surfaces 130, 430, and 530 are second. Continuously connected to the inclined surfaces (140, 440, 540), the second inclined surface (140, 440, 540) is the first hook 310 and the first hook 310 rotated by the first inclined surface (120, 420, 520) The second hook 710 is formed to be inclined in a direction different from that of the first inclined surfaces 120, 420, and 520, that is, the other side, to return to the original state.

The first fixed frame 200 and the second fixed frame 600 is a member fixed to the upper portion of the first opening and closing portion 10 and the second opening and closing portion 20, respectively, such a first fixed frame 200 and the second The fixed frame 600 has one side fixed to the first opening and closing part 10 and the second opening and closing part 20, and the first fixing through hole 210 and the second fixing through hole 610 are formed at the other side.

In addition, inclined portions 220 and 620 are formed at ends of the first fixed through hole 210 and the second fixed through hole 610, that is, the other ends of the first fixed frame 200 and the second fixed frame 600. It is formed to be inclined downward, the inclined portion 220, 620 is the first hook 310 and the second hook (approaching the first fixing frame 200 and the second fixing frame 600 when the door 11 is closed ( 710 is moved upward along the inclined surface and rotates naturally to serve to guide the first fixed through hole 210 and the second fixed through hole 610.

The first coupling member 300 and the second coupling member 700 are installed on the upper part of the door 11 and the upper part of the door panel, respectively, and operate together. The first coupling member 300 and the second coupling member 700 are coupled to each other. One side of the member 700 is provided with a first hook 310 and a second hook 710 coupled to the first fixed through hole 210 and the second fixed through hole 610 described above.

3 to 4, a perspective view of the first coupling member 300 and the second coupling member 700 is shown.

The first coupling member 300 and the second coupling member 700 are connected to the coupling frames 320 and 720 and the coupling frames 320 and 720 via the rotation shafts 330 and 730, and at one end thereof. The first hook 310 and the second hook 710 is divided into a rotating frame (340, 740) is formed.

The coupling frames 320 and 720 serve to be fixed to the upper portion of the door 11 in the case of the first coupling member 300 and to the upper portion of the door panel in the case of the second coupling member 700. , The coupling through hole (A) is provided, it is preferable that the coupling through hole (A) has a suitable length in the transverse direction to facilitate the installation of the first coupling member 300 and the second coupling member (700).

In addition, the coupling frame (320, 720) is provided with rotation shafts (330, 730), the front side of the rotation shaft (330, 730), that is, the rotating bearing (D) in the portion coupled to the rotation frame (340, 740) Is preferably provided.

Meanwhile, the first rotation control frames 321 and 721 are bent toward the front and protrude from the coupling frames 320 and 720. The bottom surface of the bent portion of the first rotation control frames 321 and 721 is a stopper 390. In contact with the, 790 serves to control the rotation of the rotating frame (340, 740).

The rotating frames 340 and 740 are members fixedly coupled to the outer circumferential surfaces of the rotating shafts 330 and 730, and the rotating frames 340 and 740 rotate relative to the fixed coupling frames 320 and 720. The rotating frames 340 and 740 and the rotating shaft are coupled to each other via a rotating bearing D, and thus a detailed description thereof will be omitted.

In addition, the lower rollers (350, 750) are installed on the front of the rotating shaft (330, 730) and the same axis as the rotating shaft (330, 730), the upper roller support on the upper side of the rotating frame (340, 740) 341 and 741 are provided, and upper roller supporters 341 and 741 are provided with upper rollers 360 and 760.

The upper rollers 360 and 760 as described above are positioned on the upper side of the lower rollers 350 and 750, and the upper rollers 360 and 760 are installed to be biased toward one side about the rotation shafts 330 and 730. , 760, the first inclined planes 120, 420, and 520 of the first guide frame 100, the second guide frame 400, and the third guide frame 500, and the vertical planes 130, 430, and 530. ), The second inclined surface (140, 440, 540) and the lower rollers (350, 750) at the same time abutting the contact surface and serves to rotate the rotation frame (340, 740) about the rotation axis (330, 730). .

In addition, the rotation frames 340 and 740 are provided with a second rotation control frame 342, 742, the second rotation control frame 342, 742 is the first rotation control frame 321, 721 It is bent upwards.

As described above, the rods 370 and 770 penetrate the two members while the first rotation control frames 321 and 721 and the second rotation control frames 342 and 742 are disposed up and down. ) Is inserted from the first rotation control frame (321, 721) is installed to extend to the outside of the second rotation control frame (342, 742).

As described above, the spring members 380 and 780 are installed on the outer circumferential surfaces of the rods 370 and 770 extending to the outside of the second rotation control frame 342 and 742, and the spring members 380 and 780 are rotated in the second rotation. Is installed on the upper surface of the control frame (342, 742), the thread on the outer peripheral surface of the rods (370, 770) to adjust the elasticity of the springs (382, 782), the elastic adjustment nut (on the outer peripheral surface of the rods (370, 770) 371 and 771 are installed, and the elasticity of the springs 382 and 782 is increased and decreased by the rotation of the rotary frames 340 and 740.

3 to 4, the spring members 380 and 780 are provided with lower plates 381 and 781 contacting upper surfaces of the second rotation control frames 342 and 742, and lower plates 381 and 781. Springs 382 and 782, the lower ends of which are supported by the upper surface of the < RTI ID = 0.0 >), and < / RTI >

Here, the rods 370 and 770 described above are extended to the outside of the upper plate, and the elastic adjustment nuts 371 and 771 are coupled to the outer circumferential surface of the rods 370 and 770 extending to the upper side of the upper plates 383 and 783. It would be desirable.

Meanwhile, the rotation frames 340 and 740 are provided with stoppers 390 and 790 for controlling the range of rotation of the rotation frames 340 and 740. These stoppers 390 and 790 are shown in FIGS. As shown, the bolt (B) is installed in the control through hole (E) provided in the rotating frame (340, 740) to rotate when the body of the bolt (B) abuts on the lower surface of the first rotation control frame (321, 721) To stop this, it will be preferable to provide two or more control holes (C) so that the rotation angle of the rotating frame (340, 740) is adjusted.

Hereinafter, the operation of the opening and closing structure of the elevator door having the configuration as described above will be described. A description will be given based on a state in which the second opening and closing portion of FIG. 2 is approached to the first opening and closing portion of FIG. 1.

For example, when a passenger presses a button (not shown) installed at one side of an elevator entrance to board an elevator on the first floor, the controller (not shown) detects this and moves the elevator car located on the other floor to the first floor. The second opening and closing part 20 approaches the first opening and closing part 10.

As described above, when the second opening and closing portion 20 approaches the first opening and closing portion 10, as shown in FIG. 6A, the upper roller of the first coupling member 300 and the second coupling member 700 is provided. As the 360 and 760 contact the first inclined surfaces 120, 420 and 520, the rotation frames 340 and 740 are rotated to one side about the rotation shafts 330 and 730.

As described above, when the rotating frames 340 and 740 are rotated to one side, as shown in FIG. 5A, the first hook 310 is formed by the first fixed through hole 210 and the second fixed through hole 610. ) Is coupled to the first coupling member 300 and the second coupling member 700, which are coupled via the second hook 710, as shown in FIG. 5B.

When the coupling is released as described above, the door 11 and the door panel are in an openable state. When the door is opened, the control unit detects this and simultaneously opens the door 11 and the door panel. ) And the opening of the door panel, as shown in (c) of FIG. 5, the first coupling member 300 and the second coupling member 700 may include the first fixing frame 200 and the second fixing frame 600. Spaced apart from.

On the other hand, after the door 11 and the door panel is opened, it is closed manually or automatically, in this case, the lower roller 350 of the first coupling member 300 by the second guide frame 400 shown in FIG. As the 750 is pushed, the door 11 and the door panel are closed.

Here, the third guide frame 500 pushes the upper rollers 360 and 760 when the door 11 and the door panel are opened.

At this time, the first fixing frame 200 and the second fixing frame 600 to facilitate insertion of the first hook 310 and the second hook 710 into the first fixed through hole 210 and the second fixed through hole 610. It is preferable that the inclined portion (220, 620) is inclined downward on the other end of the), and thus the first hook 310 and the second hook (710) is rotated when moving on the inclined portion (220, 620) The 340 and 740 are rotated about the rotation shafts 330 and 730 and are coupled together with a "click" sound when inserted into the first fixed through hole 210 and the second fixed through hole 610. 11) and the door can be kept open.

Here, since the door 11 and the door panel are opened and closed, a detailed description thereof will be omitted.

On the other hand, the present invention having the configuration as described above, as shown in Figure 6, the first coupling member 300 and the second coupling member 700, the first guide frame 100, the second guide frame 400 And allowing forced opening of the elevator door only in a section moved along the third guide frame 500. Accordingly, the section forcibly opening the elevator in an emergency is controlled.

When the forced open section of the elevator is controlled as described above, a stable structure is possible, and the forced opening of the elevator is performed in a section outside the first guide frame 100, the second guide frame 400, and the third guide frame 500. It becomes impossible.

As described above, in a section in which forced opening of the elevator is impossible, the elevator can be safely rescued after using the emergency power to move to the nearest floor. Accordingly, the first guide frame 100 and the second guide frame 400 can be safely constructed. And the length of the third guide frame 500 in the vertical direction is preferably a height of 60 ~ 70cm that can safely rescue the passengers inside the elevator will not be limited thereto.

Here, the height that can safely rescue the passengers inside the elevator will be to maintain 30cm ~ 35cm up and down relative to the floor of the elevator entrance of each floor of the building.

According to the present invention as described above, when an elevator stops at an arbitrary position during a power failure or other urgent problem, a passenger in the interior of the elevator car attempts to escape by arbitrarily opening the door. Falling accidents due to gaps between inner walls can be prevented.

Accordingly, when the opening and closing structure of the elevator door according to the preferred embodiment of the present invention is installed, it is not necessary to install the panel (installed from the lowest floor to the top floor) for preventing the fall by preventing the gap, so that the overall cost required for manufacturing and installing the elevator You can expect the savings of

The best embodiments have been disclosed in the drawings and the specification. Herein, specific terms have been used, but they are used only for the purpose of illustrating the present invention and are not intended to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100-First guide frame
200-First fixed frame
300-first coupling member
400-second guide frame
500-Third guide frame
600-second fixed frame
700-second coupling member

Claims (4)

A first guide frame 100 installed at a front side of the first opening / closing part 10 provided at an upper part of the door panel 11 of the elevator car and installed in a vertical direction; and
One side is fixed to the first opening and closing part 10, the other side of the first fixed frame 200 is provided with a first fixed through hole 210; and
It is installed on the top of the door panel 11 is operated together, the first coupling member 300 is provided with a first hook 310 is selectively coupled to the first fixed through hole 210 on one side; and
Is installed on the inner wall of the building elevator entrance, is installed on the front of the second opening and closing part 20 is provided with a door that is selectively coupled with the door panel 11 when the elevator car enters, the door is opened, installed in the vertical direction A second guide frame 400 for disassembling the coupling of the first hook 310 and the first fixed through hole 210 to allow the door panel 11 to be opened; and
A third guide frame 500 installed at the front of the second opening / closing portion 20 to allow the first hook 310 to be coupled to the first fixed through hole 210 when the door panel 11 is closed;
A second fixing frame 600 having one side fixed to the second opening and closing part 20 and a second fixing through hole 610 at the other side;
It is installed on the upper part of the door and operated together, one end is provided with a second hook 710 is selectively coupled to the second fixed through hole 610, when the elevator car enters the building elevator entrance, the first guide Opening and closing the elevator door, comprising: a second coupling member 700 for dismantling the coupling of the second fixed through hole 610 and the second hook 710 by the frame 100 to open the door rescue.
The method according to claim 1,
It is provided at the other end of the first fixed frame 200 and the second fixed frame 600, the inclined portion 220 is inclined downward at the end of the first fixed through hole 210 and the second fixed through hole 610 620); The opening and closing structure of the elevator door, characterized in that it further comprises.
The method of claim 1, wherein the first coupling member 300 and the second coupling member 700,
Coupling frames 320 and 720 provided on the rear surface to be coupled to the door panel 11 and the door, respectively;
Rotating shafts (330, 730) provided in the coupling frame (320, 720); And
Rotating frames 340 and 740 coupled to the outer circumferential surface of the rotating shafts 330 and 730 to rotate;
A lower roller (350, 750) coupled to the rotating frame (340, 740) and installed on the same axis as the rotating shaft (330, 730); and
Upper roller support (341, 741) formed on the upper side of the rotating frame (340, 740); And
Upper rollers 360 and 760 coupled to the upper roller supports 341 and 741 and positioned above the lower rollers 350 and 750 and installed to be deflected to one side about the rotation shafts 330 and 730. ;Wow
First rotation control frames 321 and 721 formed on the coupling frames 320 and 720; and
Second rotation control frames 342 and 742 formed on the rotation frames 340 and 740 and provided on an upper portion of the first rotation control frames 321 and 721; and
Rods 370 and 770 inserted into the first rotation control frames 321 and 721 and penetrating to the outside of the second rotation control frames 342 and 742; and
The rods 370 and 770 pass through the second rotation control frames 342 and 742 and the rods 370 and 770 pass through them, and elastic adjustment nuts 371 and 771 are provided at the upper ends of the rods 370 and 770. A spring member 380, 780 is increased and decreased when the rotation frame 340, 740 is rotated upward;
The spring members 380 and 780 are lower plates 381 and 781 which are in contact with the upper surfaces of the second rotation control frames 342 and 742, and springs whose lower ends are supported by the upper surfaces of the lower plates 381 and 781. 382 and 782; and top plates 383 and 783 coupled to the upper ends of the springs 382 and 782;
An elevator door opening and closing structure, comprising: a stopper (390, 790) for controlling the rotation of the rotating frame (340, 740).
The method of claim 3, wherein the first guide frame 100, the second guide frame 400 and the third guide frame 500,
Coupling bars (110, 410, 510) provided on the back; And
A first inclined surface (120, 420, 520) installed at a front side of the coupling bars (110, 410, 510) and inclined to one side to be in contact with the upper rollers (360, 760);
Continuously formed on the upper end of the first inclined surface (120, 420, 520), the upper roller (360, 760) formed in the vertical direction passed through the first inclined surface (120, 420, 520) in the vertical direction Guiding vertical surfaces 130, 430, and 530; and
The second inclined surface (140, 440, 540) continuously formed on the upper end of the vertical surface (130, 430, 530), inclined to the other side; opening and closing structure of the elevator door comprising a.

Images