KR102180018B1 - Door system for preventing swigng - Google Patents

Abstract

The present invention relates to a door system for preventing swinging, which is able to open or close a door frame as a first door on an indoor side placed at a first point of the door frame and a second door placed in the center of the door frame operate in connection with each other, or a first door on an outdoor side and a second door placed in the center of the door frame operate in connection with each other, to prevent the second door from swinging in a widthwise direction of the door frame when the door frame is closed, and to prevent an operation force of the first door or a third door towards the second door from stopping. According to the present invention, the door system for preventing swinging comprises: a guide unit including a first guide rail member, and a second guide rail member and a third guide rail member, which are placed on one side and the other side of the first guide rail member, respectively, and installed on a floor surface of the door frame; an opening/closing unit including a first slide member moved in both directions along the first guide rail member and engaged with a lower side of the first door member, a second slide member moved in both directions along the second guide rail member and engaged with a lower side of the second door member, and a third slide member moved in both directions along the third guide rail member, and engaged with a lower side of the third door member; a link unit connecting the first slide member and the second slide member to allow the first door member and the second door member to operate in connection with each other.

Description

Anti-shake door system {DOOR SYSTEM FOR PREVENTING SWIGNG}

The present invention relates to an anti-shake door system, in which the interior door 1 located at the first of the door frame and the door 2 located at the center of the door frame operate in conjunction, or the outside door 1 and the door frame are located at the center. The door frame is opened or closed by interlocking operation of the second door. In particular, when the door frame is closed, the door 2 can be prevented from shaking in the width direction of the door frame. It relates to an anti-shake door system in which the operating force of the door is not cut off.

In general, when installing a door that can be opened or closed in a sliding manner by overlapping the middle door in front of the entrance of an apartment, the middle door installed between the corridors or rooms of the building, or the front panel of furniture, the remaining doors are opened and closed. Also, interlocking devices for sliding doors that open and close in the same direction are widely used.In particular, interlocking sliding triple doors have the advantage of being able to use wider openings than sliding double doors, so they are widely installed as sliding doors. .

Such an interlocking sliding door means that the door can be opened and closed by sliding the door in the direction of the rail of the door frame rather than in the front or rear of the door frame. These sliding doors allow the entrances to be wider.

In recent years, sliding doors in which glass is inserted into a door frame are widely used, and these sliding doors are widely used as doors for homes, offices, large work factories, and cargo storage warehouses.

And, as a technology related to the interlocking sliding door, domestic patent registration No. 10-0724597 "Switch interlocking device" (2007. 5.28 registration), domestic patent registration No. 10-1174852 "Sliding door assembly" (2012.8.10 registration) ), Domestic Utility Model Registration No. 20-0439141 "Interlocking Device for Triple Sliding Doors" (Registered March 17, 2008), Domestic Patent Registration No. 10-0880272 "Interlocking Device for Sliding Doors" (Registered January 12, 2009), Korea Patent Registration No. 10-1195057 "Semi-automatic and interlocking triple sliding door assembly" (2012.10.22 registration) has been proposed.

Korean Patent Registration No. 10-0724597, which is a prior art, is a form in which an opening and closing body interlocking device is installed along an upper rail, and a door is guided by the opening and closing body interlocking device.

Domestic Utility Model Registration No. 20-0439141 discloses an interlocking device for a triple sliding door capable of manufacturing a triple overlapped door by a simple structure.

Domestic Patent Registration No. 10-0880272 discloses an interlocking device using a traction belt having a gear unit instead of a wire.

Despite the various proposals of such an interlocking triple sliding door, the interlocking triple sliding door developed so far has a very complex structure, and the installation work is not easy due to the complex structure.

On the other hand, the semi-automatic sliding door system is a sliding door system in which the door is automatically closed after the door is forcibly opened by a user.

In order to implement such a semi-automatic sliding door system, the door must be provided to be slid in a horizontal direction with respect to the door frame 90, and a pulling force applying means such as a wire elastically supported by a spring is connected to the door to open the door. Afterwards, if no external force is applied, the door is automatically closed by the pulling force applying means. That is, the pulling force applying means continuously applies the pulling force to the door.

In addition, when the door is closed by the pulling force applying means as described above, the closing speed of the door continuously increases, and a great impact occurs at the moment the door is closed. In order to solve this problem, a buffer means is provided.

The shock absorbing means generally includes a cylinder and a piston protruding from the cylinder in a horizontal direction, and provides a shock absorbing force to the door before the door is closed, thereby inducing smooth closing of the door.

The interlocking sliding triple doors described above are located on the interior side, and if the door 1 located on one side of the door frame is moved to the other side of the door frame, the door 2 located in the center of the door frame is interlocked and the door 1 and door 2 are interlocked. The entrance is opened by moving toward Door 3 located on the other side of the door frame.

In this state, when the first door is moved to one side of the door frame, the second door interlocks and moves to the center of the door frame and moves to the center of the door frame, thereby closing the entrance.

However, rollers that can move along the bottom of the door frame are installed at the bottom of Door 1, Door 2, and Door 3 to facilitate opening and closing of the door. However, if door 1 is closed, door 2 There is a problem of shaking in the width direction of the door frame.

In other words, when door 1 closes the door frame, it comes into contact with one side of the door frame and stops moving, but the roller of door 2 keeps rolling in the direction of door 2 so that the door 2 swings in the width direction of the door frame. There is a problem.

Registered Patent Publication No. 10-1704356 Registered Patent Publication No. 10-0724597 Registered Patent Publication No. 10-1174852 Registered Utility Model Publication No. 20-0439141 Registered Patent Publication No. 10-0880272

The present invention was conceived to solve the problems of the prior art, and the interior door 1 located at the first of the door frame and the door 2 located at the center of the door frame operate in conjunction with each other, or the outdoor door 1 The door frame is opened or closed as the door 2 located in the middle of the door frame is operated in conjunction with the door frame. When the door frame is closed, the door 2 can be prevented from shaking in the width direction of the door frame. An object of the present invention is to provide an anti-shake door system capable of preventing the operating force of the door or door 3 from being cut off.

The anti-shake door system according to the present invention includes a first guide rail member, second and third guide rail members respectively disposed on one side and the other side of the first guide rail member, and a guide part installed on the bottom surface of the door frame , A first slide member moving in both directions along the first guide rail member and coupled to a lower side of the first door member, a second slide member moving in both directions along the second guide rail member and coupled to a lower side of the second door member A slide member, an opening/closing part including a third slide member, which is moved in both directions along the third guide rail member and coupled to a lower side of the third door member, and the first door member and the second door member operate in conjunction with each other. An additional guide provided with an interlocking part connecting the 1 slide member and the second slide member, a rail part installed on the ceiling surface of the door frame to face the guide part, and a rail part guiding the sliding of the first, second, and third door members on the bottom surface A portion, each of the first slide member, the second slide member, and the third slide member, and each of the first guide rail member, the second guide rail member, and the third guide rail member including rollers that are respectively rolled and moved,
The linking portion includes a base coupled to one side and the other side of the first slide member, a rotation member that is each shaft fixed to the base and can be rotated in place, and the rotation member rotates while forming a caterpillar in a forward or reverse direction. It includes a traction member having first and second connecting pieces connected to the two slide members and the third slide member, respectively,
A pair of rail grooves into which the first connecting piece and the second connecting piece are inserted are formed in the first slide member,
First and second wrapping portions respectively surrounding the first connecting piece and the second connecting piece,
First and second magnetic portions disposed on one side and the other side of the second slide member and the third slide member, respectively, and respectively fixing the first and second wrapping portions with magnetic force,
The first guide rail member, the second guide rail member, and the third guide rail member each include a bottom plate in contact with the upper surface of the bottom frame, and a pair of side plates vertically bent downward from both ends of the bottom plate, and the roller An empty space is formed to accommodate
Extension pieces facing each other are formed on both side walls of the first slide member, the second slide member, and the third slide member,
Rail grooves for guiding sliding while preventing separation of the first and second connecting pieces are formed in the extension pieces, respectively,
The first connecting piece and the second connecting piece each include a moving piece that slides along the rail groove,
The base is formed in a'C' cross-sectional shape and is wrapped in a form in contact with the top, bottom and side surfaces of the extension piece of the first slide member.

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In the anti-shake door system according to the present invention, the indoor door 1 located at the first of the door frame and the door 2 located at the center of the door frame work in conjunction, or the outdoor door 1 and the door frame are located at the center. Door 2 works in conjunction to open or close the door frame, and when the door frame is closed, it can prevent the door 2 from shaking in the width direction of the door frame, and the operating force of Door 1 or Door 3 against Door 2 There is an effect that can make it uninterrupted.

1 is a front view showing an anti-shake door system according to the present invention.
2 is an exploded perspective view showing a first door member, a second door member, a third door member, and an additional guide part applied to the anti-shake door system according to the present invention.
Figure 3 is an exploded perspective view showing a first slide member and linkage applied to the anti-shake door system according to the present invention.
Figure 4 is a combined perspective view showing a first slide member and linkage applied to the anti-shake door system according to the present invention.
5 is a perspective view showing a state in which a magnet part is coupled to a second slide member and a third slide member applied to the anti-shake door system according to the present invention.
6 is a view showing a state in which a first slide member, a second slide member, and a third slide member applied to the anti-shake door system according to the present invention are installed in the first door member, the second door member, and the third door member.
7 is a diagram showing a connection state of a first slide member, a second slide member, and a third slide member and a linkage portion applied to the anti-shake door system according to the present invention.
8 is a bottom view showing the state of the linkage when the first door member, the second door member, and the third door member are closed in the anti-shake door system according to the present invention.
9 is a bottom view showing the state of the linkage when the first door member, the second door member, and the third door member are opened in the anti-shake door system according to the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. The same reference numerals are assigned to similar parts throughout the specification.

1 is a front view showing a shake prevention door system according to the present invention, and FIG. 2 is a first door member, a second door member, a third door member and an additional guide applied to the shake prevention door system according to the present invention. 3 is an exploded perspective view showing a first slide member and an interlocking part applied to the anti-shake door system according to the present invention, and FIG. 4 is an exploded perspective view showing the first slide member and an interlocking part applied to the anti-shake door system according to the present invention. Fig. 5 is a perspective view showing a state in which a magnet unit is coupled to a second slide member and a third slide member applied to the anti-shake door system according to the present invention, and Fig. 6 is a shake prevention door according to the present invention A diagram showing a state in which the first slide member, the second slide member, and the third slide member applied to the system are installed in the first door member, the second door member, and the third door member, and FIG. 7 is a diagram showing the vibration prevention according to the present invention. A diagram showing a connection state of the first slide member and the second slide member and the third slide member and the linkage unit applied to the door system, and FIG. 8 is a first door member and a second door member in the anti-shake door system according to the present invention. And a bottom view showing the state of the linkage when the third door member is closed, and FIG. 9 is a bottom view of the linkage when the first door member, the second door member, and the third door member are opened in the anti-shake door system according to the present invention. It is a bottom view showing the state.

The anti-shake door system 1 according to the present invention can be opened and closed by interlocking three or more door members 100a, 100b. 100c, and when the door members 100a, 100b. 100c are closed, the door frame 90 of the door frame 90 is closed. It is a product that can not shake along the width direction.

To this end, the anti-shake door system 1 according to the present invention may include a guide part 10, an additional guide part 20, an opening/closing part 30, and an interlocking part 40.

First, the guide part 10 may be installed on the door frame 90.

The door frame 90 may be formed by combining the ceiling frame 91 and the floor frame 92 and two vertical frames 93 and 143 into a rectangular frame 101 shape.

First, second, and third door members 100a, 100b and 100c are disposed on the inner front side, the center, and the rear side of the door frame 90, respectively. The first, second, and third door members 100a, 100b, and 100c may be deployed on the door frame 90 in a form of overlapping or unfolding.

The first, second, and third door members 100a, 100b, and 100c may include a square frame 101 and a glass 102 fixed to the inside of the square frame 101, respectively.

The square frame 101 has a structure in which a bottom surface is opened so that the first slide member 31, the second slide member 32, and the third slide member 33, which will be described later, can be inserted, and an empty space is formed therein.

At this time, in the present invention, the second door member 100b or the third door member 100c is moved along the door frame 90 by the user's pushing or pulling action by the linkage part 40, and the first door member ( 100a) may be implemented to be operated in conjunction with the second door member 100b or the third door member 100c during operation.

That is, the second door member 100b plays a driving role as the operation is controlled by the user, and the first door member 100a is operated in conjunction with the second door member 100b when the second door member 100b is operated, thereby acting as a driven role.

In addition, the third door member 100c is a door frame unlike the first door member 100a and the second door member 100b that are moved in both directions along the first guide rail member 11 and the second guide rail member 12 It is fixed at the end of (90) and remains immobile.

In this case, although not shown in the drawings, the third door member 100c has a structure that can be selectively maintained or moved in a fixed state by a locking/unlocking device.

The guide part 10 is coupled to the upper surface of the floor frame 92, and is disposed on one side and the other side of the first guide rail member 11 and the first guide rail member 11 disposed in the center of the floor frame 92. A second guide rail member 12 and a third guide rail member 13 respectively disposed may be included.

The first guide rail member 11, the second guide rail member 12, and the third guide rail member 13 are disposed to be parallel to each other, and may be formed to have the same length as the bottom frame 92.

The first guide rail member 11, the second guide rail member 12, and the third guide rail member 13 are lower from both ends of the base plate 10a and the base plate 10a in contact with the upper surface of the floor frame 92, respectively. It may include a pair of side plates (10b) vertically bent toward.

Accordingly, an empty space in which the rollers 312, 322, and 332 described later can be accommodated is formed inside the first guide rail member 11, the second guide rail member 12, and the third guide rail member 13.

At this time, although not shown in the drawing, the guide portion 10 is formed by forming a single upper plate 10a coupled to the upper surface of the bottom frame 92 and four side plates 10b spaced apart from the bottom surface of the upper plate 10a. It may be manufactured or may be manufactured by forming only the four side plates 10b spaced apart from the bottom frame 92 itself.

The additional guide part 20 is installed on the bottom surface of the ceiling frame 91 and faces the guide part 10 in the up and down directions.

The additional guide part 20 may be formed to have the same length as the ceiling frame 91.

A rail portion 21 for guiding the sliding of the first, second, and third door members 100a, 100b, 100c is formed on the bottom of the additional guide portion 20.

The rail part 21 may be applied in the same number as the first, second, and third door members 100a, 100b. 100c, and FIG. 2 shows an example in which three rail parts 21 are applied.

The rail part 21 is composed of two pairs and may be formed to have the same length as the additional guide part 20.

The rail part 21 may be formed in an approximately'b' cross-sectional shape including a vertical part connected to the bottom surface of the additional guide part 20 and a horizontal part bent in a horizontal direction at the lower end of the vertical part.

Further, slide portions 103 that slide along the rail portion 21 are formed on both upper ends of the first, second, and third door members 100a, 100b. 100c.

The slide part 103 includes a housing H1 fixed to an upper end of the square frame 101 of the first, second, and third door members 100a, 100b. 100c, respectively.

Further, a coil spring (not shown) for elastically supporting the slide part 103 is embedded in the housing H1. The slide part 103 is drawn in a certain length into the housing H1 while compressing the coil spring, and when the coil spring is stretched, it can be pulled out and restored to its original shape. It is possible to easily install the 2nd and 3rd door members 100a, 100b. 100c on the guide part 10 and the additional guide part 20.

At this time, since the method of installing the first, second, and third door members 100a, 100b. 100c to which the opening and closing part 30 is coupled to the guide part 10 and the additional guide part 20 is a commercialized technology, a detailed description is omitted. do.

On the other hand, the opening and closing part 30 is moved in both directions along the longitudinal direction of the first guide rail member 11, the first slide member 31 coupled to the lower side of the first door member 100a, the second guide rail member It is moved in both directions along the longitudinal direction of (12) and is moved in both directions along the longitudinal direction of the second slide member 32 and the third guide rail member 13 coupled to the lower side of the second door member 100b. It may include a third slide member 33 that moves in both directions along the third door member 100c.

The first slide member 31, the second slide member 32, and the third slide member 33 may be formed in a rectangular bar shape with a bottom surface and both side surfaces open, respectively, and an empty space formed therein.

At this time, both side surfaces of the first slide member 31, the second slide member 32, and the third slide member 33 are completely open, and only a certain area of the bottom surface is opened.

Therefore, as shown in Fig. 6, the first slide member 31, the second slide member 32, and the side walls 32a and 33a of the third slide member 33 extend horizontally to face each other. Pieces 311, 321, 331 are formed, respectively.

In addition, rail grooves 311a for guiding sliding while preventing separation of the first and second connecting pieces 431 and 432 described later are formed in the extension pieces 311 of the first slide member 31, respectively.

As described above, the first slide member 31 is inserted into the lower inner space of the first door member 100a, and a lower portion of the extension piece 311 formed thereon protrudes below the first door member 100a.

In addition, the second slide member 32 and the third slide member 33 are also inserted into the lower inner spaces of the second door member 100b and the third door member 100c, respectively, and a portion of the lower side is the second door member ( 100b) and the third door member 100c respectively protrude below.

At this time, the protruding lengths of the first slide member 31, the second slide member 32, and the third slide member 33 are the same.

The extension piece 321 of the second slide member 32 is located higher than the side wall 32a and does not protrude to the outside of the first slide member 31, and the extension piece 331 of the third slide member 33 Also, it is positioned higher than the side wall 33a and does not protrude to the outside of the third slide member 33.

Inside the first slide member 31, the second slide member 32, and the third slide member 33 described above, the first guide rail member 11, the second guide rail member 12, and the third guide rail Rollers 312, 322, and 332 that are rolled along the member 13 are applied, respectively.

At this time, the rollers 312, 322, and 332 may be axially fixed inside the housing H2 with the bottom surface open and an empty space formed therein, and the housing H2 includes a first slide member 31 and a second slide member 32 And it may be fixed or bolted to the inside of the third slide member 33 by force fitting.

The linking part 40 connects the first slide member 31 and the second slide member 32 to operate in conjunction with the first door member 100a and the second door member 100b.

The linkage portion 40 may include a base 41, a rotating member 42, and a traction member 43.

The base 41 is composed of two pairs and is disposed at one end and the other end of the first slide member 31, respectively.

The base 41 is formed in an approximately'U' cross-sectional shape and contacts the upper surface, the bottom surface, and side surfaces of the extension piece 311 of the first slide member 31.

The base 41 surrounds a part of the extension piece 311 and may be fixed through any one of an adhesive, a bolt, or a piece.

The rotating member 42 may be formed of a pulley, and consists of two pairs.

The rotating member 42 includes a shaft that is installed through the base 41. Thus, the rotating member 42 can be rotated in place on the shaft.

The traction member 43 is mounted to form a closed loop of a pair of rotating members 42, and may be formed of a wire or a timing belt, and the drawing shows an example formed of a wire.

The traction member 43 may be rotated while forming a caterpillar track in the forward or reverse direction while being mounted on the rotating member 42.

A first connecting piece 431 and a second connecting piece 432 are fixed to one side and the other side of the traction member 43, respectively.

The first connecting piece 431 and the second connecting piece 432 may be fixed to the traction member 43 with a bolt or an adhesive.

Therefore, the traction member 43, the first connecting piece 431 and the second connecting piece 432 are operated in conjunction.

That is, the first connecting piece 431 is connected to the second slide member 32, and the second connecting piece 432 is connected to the third slide member 33. With this structure, the operating force of the second door member 100b is transmitted to the first door member 100a, so that the first door member 100a and the second door member 100b are in the same direction with the linking part 40. You can move at the same speed as. Accordingly, when the second door member 100b is opened or closed, the first door member 100a is also opened or closed.

At this time, when the second door member 100b is slid, the first door member 100a is slid in the same direction as the second door member 100b by the linking part 40, but the second door member 100b is moved. It moves half the length of one length or the same distance. In addition, the second door member 100b and the first door member 100a only receive horizontal movement force from the traction member 43, and do not have any coupling structure.

Additionally, the first connecting piece 431 and the second connecting piece 432 are provided with moving pieces 4311 and 4321 that slide along the above-described rail groove 311a, respectively.

The rail groove 311a may be formed in an approximately'ㅗ'-shaped cross-sectional shape, and the moving pieces 4311 and 4321 may be formed in the same'ㅗ'-shaped cross-sectional shape as the rail groove 311a.

Therefore, the moving pieces (4311, 4321) can be pushed in from the end of the rail groove (311a), and the moving pieces (4311, 4321) are in a structure in which the moving pieces (4311, 4321) and the rail groove (311a) engage It is not separated from the rail groove (311a).

In particular, in the anti-shake door system according to the present invention, the roller 312 applied to the first door member 100a is constrained to the inside of the first slide member 31 and the first slide member 32 is connected to the interlocking part 40 ), the movement distance is limited and does not deviate from the second slide member 32, so that a phenomenon of shaking in the width direction of the door frame 90 of the first door member 100c may not occur.

Additionally, the anti-shake door system 1 according to the present invention stably connects the first connecting piece 431 and the second connecting piece 432 to the first slide member 31 and the third slide member 33 The first and second wrapping portions 50 and 60 and the first and second magnetic portions 70 and 80 may be further included.

The first wrapping part 50 is formed to have an approximately'C' cross-sectional shape to simultaneously wrap the top, bottom and side surfaces of the first connecting piece 431.

The first wrapping part 50 may be formed of a metal material so as to be attached to the first magnet part 70, or may be formed of a magnet having a polarity opposite to that of the first magnet part 70.

The second wrapping portion 60 is formed to have an approximately'C' cross-sectional shape to simultaneously wrap the upper, lower, and side surfaces of the second connecting piece 432.

The second wrapping part 60 may be formed of a metal material to be attached to the second magnet part 80 or may be formed of a magnet having a polarity opposite to that of the second magnet part 80.

The first magnet part 70 is inserted and fixed in the fixing groove 32b formed in the extension piece 321 of the second slide member 32.

In addition, a receiving groove 32c is formed in the side wall 32a of the second slide member 32 to be connected to the fixing groove 32b and accommodating the first connecting piece 431.

Therefore, the first wrapping part 50 and the first connecting piece 431 do not protrude from the second slide member 32. In addition, since the first connecting piece 431 is accommodated in the receiving groove 32c, the first wrapping part 50 can be prevented from being separated from the first magnet part 70.

The second magnet part 80 is inserted into and fixed to the fixing groove 33b formed in the extension piece 331 of the third slide member 33.

In addition, a receiving groove 33c is formed in the side wall 33a of the third slide member 33 to be connected to the fixing groove 33b and receiving the second connecting piece 432.

Accordingly, the second wrapping portion 60 and the second connecting piece 432 do not protrude from the second slide member 32. In addition, since the second connecting piece 432 is accommodated in the receiving groove 33c, the second wrapping part 60 can be prevented from being separated from the second magnet part 80. That is, the first door member 100a is transferred to the second door member 100b and the third door member 100c through the first and second wrapping parts 50 and 60 and the first and second magnetic parts 70 and 80. ) Is stably connected, so that the operating force of the second door member 100b or the third door member 100c with respect to the first door member 100b is not cut off.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. It must be interpreted.

1: anti-shake door system 10: guide part
10a: top plate 10b: side plate
11: first guide rail member 12: second guide rail member
13: third guide rail member 20: additional guide part
21: rail part 30: opening and closing part
31: first slide member 311,321,331: extension piece
311a: rail groove 312,322,332: roller
32a, 33a: side wall 32: second slide member
32b,33b: fixing groove 32c,33c: receiving groove
33: third slide member 40: linkage
41: base 42: rotating member
43: traction member 431: first connection piece
4311,4321: mobile flight 432: second connection flight
50: first wrapping portion 60: second wrapping portion
70: first magnetic portion 80: second magnetic portion
90: door frame 91: ceiling frame
92: floor frame 93: vertical frame
100a: first door member 101: square frame
102: glass 103: slide part
100b: second door member 100c: third door member

Claims (5)

A first guide rail member, a guide portion installed on the bottom surface of the door frame, comprising second and third guide rail members respectively disposed on one side and the other side of the first guide rail member,
A first slide member moving in both directions along the first guide rail member and coupled to a lower side of the first door member, and a second slide member moving in both directions along the second guide rail member and coupled to a lower side of the second door member A member, an opening and closing part including a third slide member that is moved in both directions along the third guide rail member and coupled to a lower side of the third door member,
An interlocking part connecting the first slide member and the second slide member so that the first door member and the second door member work together,
An additional guide part installed on the ceiling surface of the door frame, facing the guide part, and having a rail part formed on the bottom surface to guide the sliding of the first, second, and third door members,
Each of the first slide member, the second slide member, and the third slide member, and each of the first guide rail member, the second guide rail member and the third guide rail member includes rollers that are respectively rolled and moved,
The linkage unit,
A base coupled to one side and the other side of the first slide member, respectively,
Rotating members that are each shaft fixed to the base and can be rotated in place,
And a traction member having first and second connecting pieces that are rotated while forming a caterpillar in the forward or reverse direction in the rotating member and connected to the second slide member and the third slide member, respectively,
A pair of rail grooves into which the first connecting piece and the second connecting piece are inserted are formed in the first slide member,
First and second wrapping portions respectively surrounding the first connecting piece and the second connecting piece,
First and second magnetic portions disposed on one side and the other side of the second slide member and the third slide member, respectively, and respectively fixing the first and second wrapping portions with magnetic force,
The first guide rail member, the second guide rail member, and the third guide rail member each include a bottom plate in contact with the upper surface of the bottom frame, and a pair of side plates vertically bent downward from both ends of the bottom plate, and the roller An empty space is formed to accommodate
Extension pieces facing each other are formed on both side walls of the first slide member, the second slide member, and the third slide member,
Rail grooves for guiding sliding while preventing separation of the first and second connecting pieces are formed in the extension pieces, respectively,
The first connecting piece and the second connecting piece each include a moving piece that slides along a rail groove,
The base is formed in a'C' cross-sectional shape and enclosed in a form in contact with the top, bottom and side surfaces of the extension piece of the first slide member. delete delete delete delete

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