KR102223397B1 - Folding door hinges and folding doors hinges with rail and folding doors thereof - Google Patents

Abstract

The present invention has the following configuration.
Left hinge piece;
A right hinge piece configured on the right side corresponding to the left hinge piece;
The left hinge piece and the right hinge piece are configured to be rotated by a hinge hinge,
A left hinge body coupled to the left hinge piece;
A right hinge body coupled to the right hinge piece;
It relates to a folding door hinge device, characterized in that consisting of.

Description

TECHNICAL FIELD [Folding door hinges and folding doors hinges with rail and folding doors thereof]

The present invention relates to a folding door hinge device technology.

In particular, it relates to a folding door hinge device for moving rails applied to an even number of folding doors in the case of four or more folding doors, and a folding door technology using the same.

The background technology will be described with reference to FIGS. 13A and 13B as follows. The hinge is made of a metal material and consists of an operating unit on which a plurality of gears 11 are installed, and left and right plates that are installed on the left and right sides of the operation unit and rotated forward and rearward, and the left plate is the left side inside the operation unit. It is formed integrally with the gear 11 located at the end, and the right plate is formed integrally with the gear 11 located at the right end of the inside of the operating part.

In addition, the operation unit is spaced apart from each other by a predetermined distance, the upper and lower plates (12, 13), a plurality of support shafts (14) installed at equal intervals in the longitudinal direction of the upper and lower plates (12, 13), and the plurality of It consists of gears 11 installed on each of the support shafts 14, and the gears 11 are meshed with each other.

In addition, four gears are installed in the operation unit, and each gear located at both ends of the operation unit rotates in opposite directions, and the left and right plates formed on the left and right sides of the operation unit face each other. It will rotate in the direction you see.

In addition, a plurality of through holes penetrated up and down are formed in the left and right plates, and screws are inserted into the through holes to be screwed to the upper or lower surfaces of the left and right doors, respectively.

However, in the case of using a thinner aluminum plate or a thin metal plate, the coupling itself is not smooth and eventually the hinge is dislodged.

The present invention was conceived from the viewpoint of solving such a problem.

Korean Intellectual Property Office Patent Registration No. 10-1586995 (2016.01.20) Korean Intellectual Property Office Patent Publication No. 10-2018-0035072 (2018.04.05)

The first object of the present invention is to solve the problem of preventing the hinge device from being separated from the frame by configuring a hinge device for a folding door without using a screw, which is a separate fastening device, directly on the thickness of the vertical frame.

The second subject of the present invention is to connect the even-numbered folding door of four or more folding doors by using a hinge piece to the hinge hinge of the folding door without directly using a screw, which is a separate fastening device, to the thickness of the vertical frame of the folding door. It solved the problem of completely folding and fully unfolding four or more folding doors on the horizontal frame of the door frame by configuring a folding door hinge device with a rail movable part by adding a moving part.

In order to solve the above problems, the following configuration is placed.

Left hinge piece;

A right hinge piece configured on the right side corresponding to the left hinge piece;

The left hinge piece and the right hinge piece are configured to be rotated by a hinge hinge,

A left hinge body coupled to the left hinge piece;

The right hinge body coupled to the right hinge piece; constitutes a folding door hinge device.

* Herein, between the left hinge piece and the left hinge body, a left hinge groove, which is a U-shaped groove, is formed in the longitudinal direction, and is inserted into the left hinge groove insertion part configured in the lengthwise direction to the left vertical frame of the folding door and coupled. .

It is preferable that the right hinge groove is formed in a lengthwise direction between the right hinge piece and the right hinge body, and is inserted into the right hinge groove insertion portion configured in the lengthwise direction on the right vertical frame of the folding door.

Here, it is preferable that a hole is formed in the left hinge body portion and the right hinge body portion so that a fastener or a fixing portion is inserted.

Here, the left hinge body and the right hinge body

Each of the left vertical frame of the folding door and the right vertical frame of the folding door are configured to be inserted and fixed in close contact with each other, but for additional fixing, a lock moving hole or a fixing part insertion hole is formed on the left hinge body or the right hinge body, respectively. Correspondingly, it is preferable to configure and fix a female screw portion to the left vertical frame portion of the folding door and the right vertical frame portion of the folding door.

Here, the left hinge groove portion is inserted into the left hinge groove insertion portion configured in the left vertical frame portion of the folding door,

It is preferable that the right hinge groove portion is configured to be inserted into the right hinge groove insertion portion configured in the right vertical frame portion of the folding door and is fixed.

Here, a groove portion is formed at the side end portion formed in the longitudinal direction of each of the left vertical frame portion of the folding door and the right vertical frame portion of the folding door.

The flexible part is configured to couple the protrusion formed in the longitudinal direction to the groove part at the side end of the flexible part, so that physical damage due to being caught when opening and closing the folding door does not occur, the flexible part is the left vertical frame part of the folding door and the right vertical frame part of the folding door. It is preferable to form a bond to each.

Here, it is preferable to further configure the auxiliary ductile part in the longitudinal direction of the ductile part.

Here, the fixing part is configured to be inserted into the hole configured in the left hinge body or the right hinge body,

The fixing part is composed of a body part, a locking part, an elastic part and a fixed part,

The locking part configured in the lower part of the body part is configured to be inclined when inserted, and after being inserted, it is configured as a jaw so that it does not come off. It is preferable that the elastic part is placed in a direct lower part of the upper part of the fixing part so that the upper part of the fixing part is inserted into the door frame, and the door is not opened by a small force such as wind.

Here, a rail movable part is further configured on the hinge hinge in the folding door hinge device to constitute a rail movable part folding door hinge device.

Here, the rail moving part is configured to freely rotate around the hinge hinge by configuring a hinge hinge hole to be inserted into the hinge hinge,

The hinge hinge hole is configured at one end of the hinge shaft support,

Consisting of up and down, the two hinge shaft support parts are connected through a hinge shaft support connection part, and a rail moving roller part is configured on the upper part of the hinge shaft support part connection part, so that when the folding door is opened and closed, the upper and lower parts of the folding door are configured. It is preferable to configure the folding door to be movable within the horizontal frame.

Here, it is preferable that the rail movable roller part constitutes a rail movable roller part hole to constitute a rotating roller in the rail movable roller part hole.

Here, it is preferable to configure two rotary rollers.

Here, a folding door is constructed by applying a folding door hinge device with a rail moving part.

The first effect of the present invention is to have an effect of preventing the hinge device from being separated from the frame by configuring the hinge device of the folding door without using a screw, which is a separate fastening device, directly on the thickness of the vertical frame.

As a second effect of the present invention, the hinge piece is not used directly on the thickness of the vertical frame of the folding door by using a screw, which is a separate fastening device, to connect the even-numbered folding door of four or more folding doors, but the rail to the hinge hinge of the folding door. It has the effect of completely folding and fully unfolding four or more folding doors on the horizontal frame of the door frame by configuring a folding door hinge device with a rail movable part by adding a moving part.

1 is a diagram showing the construction of a folding door.
2 is a view showing a folding door hinge device when combined with a folding door.
3A to 3C are views showing the folding door hinge device in detail.
4 is a view showing that the folding door hinge device is inserted into the vertical frame of the folding door.
FIG. 5 is a view showing the configuration of a flexible part in the longitudinal direction on the side part to which the folding door is coupled to FIG. 4.
6 is a view showing the flexible part.
7 is a view showing the fixing part.
8 is a view showing four folding doors.
9 is a view showing a state in which the folding door is folded.
Fig. 10 is a diagram showing a folding door hinge device for moving rails for each of two folding doors.
Fig. 11a is a detailed view of a folding door hinge device for moving rails configured on an upper portion of the folding door.
Fig. 11b is a detailed view of the rail moving part folding door hinge device configured under the folding door.
Figure 12a is a view showing in detail the rail moving portion of Figure 11a.
Figure 12b is a view showing in detail the rail moving portion of Figure 11b.
13A and 13B are diagrams showing a conventional technique.

It will be described as follows with reference to the drawings.

In order to construct a folding door, a hinge piece should be used to connect the folding door to each other with screws in order to connect the folding doors to each other.

The present invention is to be connected by a hinge piece without connecting the screw in the thickness direction of the folding door frame.

It is a durable technology with no possibility of damage because it is sturdy.

One embodiment is shown in Figures 1 to 7.

1 is a view showing that the folding door is disposed on the door frame.

2 is a view showing that the folding door hinge device to which the present invention is applied is folded around the center when the folding door is opened.

In the case of Fig. 1, the left vertical frame part 200 for the folding door and the right vertical frame part 300 are configured. (The left and right sides are determined based on Fig. 4).

It is a diagram showing the application of the folding door hinge device 100 to the folding door hinge device.

The left and right sides are determined centering on FIG. 4.

3A to 3C are as follows.

It is composed of a right hinge piece 180 on the right side corresponding to the left hinge piece 140.

The left hinge piece 140 and the right hinge piece 180 are configured to be rotated by a hinge hinge 190.

It is preferable to configure the left hinge body 120 coupled to the left hinge piece 140, but to be configured as an integral type.

Consisting of the right hinge body 160 coupled to the right hinge piece 180 constitutes a folding door hinge device (100).

A left hinge groove 110 is formed between the left hinge piece 140 and the left hinge body 120

Here, between the left hinge piece 140 and the left hinge body portion 120, a left hinge groove portion 110, which is a U-shaped groove portion, is formed in the longitudinal direction to the left vertical frame portion 200 of the folding door in the longitudinal direction. It is coupled by inserting it into the configured left hinge groove insertion portion 210.

A right hinge groove portion configured in a longitudinal direction on the right vertical frame portion 300 on the right side of the folding door by configuring a right hinge groove portion 150 of a shape in the length direction between the right hinge piece 180 and the portion of the right hinge body 160 It is preferable to insert and couple with the insertion part 310.

The width of the groove portion of the left hinge groove portion 110 and the right hinge groove portion 150 corresponds to the thickness of the hollow pipe constituting the folding door left vertical frame portion 200 and the folding door right vertical frame portion 300.

A hole is formed in the center portion of the left hinge body part 120 and the right hinge body part 160 so that the fastener 500 or the fixing part 400 is inserted.

A fastener is inserted into one vertical frame part and a fixing part 400 is inserted into one vertical frame part.

The fixing part 400 may or may not be selectively configured.

The left hinge body 120 and the right hinge body 160

It is configured to be fixed to be inserted in close contact with the folding door left vertical frame portion 200 and the folding door right vertical frame portion 300, respectively.

When inserted into the left vertical frame part 200 of the folding door and the right vertical frame part 300 of the folding door, the left hinge body 120 and the right hinge body 160 are used to insert the flexible parts in FIGS. 5 and 6. It is to insert the part except the space.

That is, the width from each of the vertical frame insertion portions 124 and 164 to the end portions 125 and 165 of the folding door hinge device has a margin due to the flexible portion. The flexible portion prevents pinching of hands or other bodies and prevents damage to the body even when pinching occurs. To prevent.

The flexible part is configured to couple the protrusion formed in the longitudinal direction to the groove part at the side end of the flexible part, so that physical damage due to being caught when opening and closing the folding door does not occur, the flexible part is the left vertical frame part of the folding door and the right vertical frame part of the folding door. It is a combination of each.

In order to ensure fixation, fixing screw holes 122, 123, 162, 163 are formed in the left hinge body 120 and the right hinge body 160, respectively, and correspondingly, the left vertical frame part 200 of the folding door and the folding Female screw portions 240 and 340 are formed in the vertical direction of the door right side vertical frame portion 300 and further fixed.

The additional fixing is such that a large force for folding and unfolding the folding door is not imposed on the level to prevent separation from the top and bottom.
The vertical frame on the left side of the folding door is configured as a rectangular space, and the female screw is separately configured in the lengthwise direction in the rectangular space, and is arranged spaced apart from one side of the square.
The left hinge body portion has the configuration of the left hinge body to be inserted into a space excluding the female screw portion so as to correspond to the female screw portion of the foldable left vertical frame portion, and the right hinge body portion is configured to surround the female screw portion to constitute a fixing screw hole. do.
In a space spaced apart from the female screw part of the rectangular space of the left vertical frame of the folding door, the left hinge body part is configured to closely contact the rectangular space of the left vertical frame of the folding door from the top.
The vertical frame on the right side of the folding door is configured as a rectangular space, and a female threaded portion is separately configured in the rectangular space in the longitudinal direction, and is arranged spaced apart from one side of the square.
The right hinge body portion has a configuration of the right hinge body portion to be inserted into a space excluding the female screw portion so as to correspond to the female screw portion of the foldable right vertical frame portion.
The right hinge body portion is configured to surround the female screw portion to constitute a fixing screw hole.
In a space spaced apart from the female screw part of the rectangular space of the right vertical frame part of the folding door, the right hinge body part is configured to closely contact the rectangular space of the right vertical frame part of the folding door from the top.
The left hinge body and the right hinge body each have an H-shaped configuration, and one end of the H-shaped configuration is outside the rectangular space of each of the right vertical frame of the folding door and the left vertical frame of the folding door. Organize to be placed.

It will be described with reference to Figure 4 as follows.

The left hinge groove 110 is inserted into the left hinge groove insertion portion 210 configured in the left vertical frame portion 200 of the folding door,

The right hinge groove 150 is configured and fixed to be inserted into the right hinge groove insertion portion 310 configured in the right vertical frame portion 300 of the folding door.

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* It will be described with reference to Figures 5 and 6 as follows.

Protrusions 620 and 630 configured at the side ends of the flexible part 600 by configuring grooves 220 and 230 at the side ends formed in the longitudinal direction of each of the folding door left vertical frame part 200 and the folding door right vertical frame part 300 ), so that there is no physical damage due to pinch when opening or closing the folding door.

An auxiliary flexible part 610 is added to the soft part 600, but further configured in the longitudinal direction of the soft part 600 so that no space is created due to the joint of the folding door to prevent damage to the human body and a space where pests enter. It is configured so that there is no additional.

It will be described with reference to Figure 7 as follows.

The fixing part 400 is configured to be inserted into the fixing part insertion hole 161 configured in the left hinge body 120 or the right hinge body 160.

Of course, the fastener moving hole 121 and the fixing part insertion hole 161 may be installed in any direction on the left and right sides. The locking bracket moving hole 121 is used when locking and unlocking is required, and the fixing part is configured so that the folding door can be opened by applying a certain force so that the folding door is not easily opened by a weak pressure such as wind.

The fixing part 400 is composed of a body part 440, a locking part 430, an elastic part 420, and a fixed part upper part 410,

The locking part 430 configured at the lower part of the body part 440 is configured to be inclined when inserted and inserted smoothly, and after being inserted, it is configured as a jaw so that it is not separated from the left and right sides of the body part 440. It is good to organize.

An elastic spring is formed inside, and when inserted, the spring receives pressure, and after being inserted, the pressure is released, and the locking part is returned to its original configuration.

The upper portion of the body portion 440 constitutes the fixed portion upper portion 410, but has a hemispherical shape or a curved surface, and the elastic portion 420 is placed directly under the fixed portion upper portion 410, so that the fixed portion upper portion 410 ) Is inserted into the door frame, but the door is not opened by a small force such as wind.

When a slight strong force is applied, that is, when a force that overcomes the elasticity of the elastic part is given, it is separated from the door frame or inserted into the door frame.

The second embodiment is shown in Figs. 8 to 12.

8 and 9 are diagrams showing a state in which four folding doors are configured.

When described from the left to the right of the folding door, it is as follows.

The folding hinge device 100 is arranged and configured in the upper and lower right of the first door of the folding door.

The folding door hinge device 900 is arranged in the upper and lower right portions of the second door to be configured so that it is not separated from the horizontal folding door frames 1100 and 1200.

A folding hinge device 100 is disposed in the upper and lower right of the third door of the folding door.

When folding doors are arranged in an even number, 6, 8, 10...., etc., the second embodiment of the folding door hinge device 900, which is a second embodiment, is arranged in the upper and lower right of the even-numbered door to make the folding door. When folded and unfolded, it is configured not to be separated from the folding door horizontal frame (1100, 1200).

A rail moving part 700 is additionally configured to the folding door hinge device 100 described in FIGS. 1 to 5 but further configured to the hinge hinge 190 to constitute a rail moving part folding door hinge device 900.

10 to 12B will be described as follows.

The drawing describes the rail movable part folding door hinge device 900 configured on the upper part of the folding door.

The rail moving part 700 is configured to freely rotate around the hinge hinge 190 by configuring the hinge hinge holes 731 and 741 to be inserted into the hinge hinge 190.

The hinge hinge holes 731 and 741 are configured at one end of the hinge shaft support portions 730 and 740.

The hinged hinge holes 731 and 741 are configured up and down, so that the two hinge shaft support parts 730 and 740 are connected through a hinge shaft support connection part 750, and the hinge shaft support parts 730 and 740 are the hinge shaft support connection parts 750 It is spaced at right angles in the form of an arm of the person.

Rail moving roller parts 710 and 720 are configured at the upper part of the hinge shaft support connecting part 750 so that when the folding door is opened and closed, it can be moved within the folding door horizontal frames 1100 and 1200 configured at the upper and lower portions of the folding door. To configure the rail to configure the movable folding door hinge device 900.

The rail moving roller parts 710 and 720 constitute rail moving roller part holes 715 and 725 by inserting the rotating rollers 760 and 770 into the rail moving roller part holes 715 and 725.

One or more of the rotary rollers 760 and 770 is sufficient. It is desirable to configure two.

It is also possible to configure the rail movable folding door hinge device 900 above and below the folding door.

In the present invention, the rail movable folding door hinge device configured in the upper and the lower part is configured differently by giving a slight change to the rail movable part and the rail movable folding door hinge device configured in the upper and the lower part.

It is preferable to configure the rotary rollers 760 and 770 so that the upper part has a frictional force through the pressure of the weight of the foldable door, so that the horizontal frame 1200 of the foldable door configured on the upper part has a frictional force to be minimized.

One or more of the rotary rollers 760 and 770 is sufficient. It is desirable to configure two.

11B and 12B are configured under the folding door to guide the folding door horizontal frame 1100, and since the frictional force hardly acts on it, it is sufficient to configure the flat flat portion 782 only for the guide.

The second rail moving part 780 is configured to freely rotate around the hinge hinge 190 by configuring the hinge hinge holes 781 and 784 to be inserted into the hinge hinge 190.

The hinge hinge holes 781 and 784 are formed at one end of the hinge shaft support portions 783 and 785.

The hinged hinge holes 781 and 784 are configured up and down, and the two hinge shaft support portions 783 and 785 are connected through a hinge shaft support connecting portion 786, and the hinge axis support portions 783 and 785 are the hinge axis support connecting portions 786 It is spaced at right angles in the form of an arm of the person.

The second rail moving part folding door is configured to move within the horizontal frame 1100 of the folding door configured at the bottom when the folding door is opened and closed by configuring a flat part 782 on the upper part of the hinge shaft support connection part 786 To configure the hinge device (800).

It can be any shape, such as a cylindrical shape other than a flat part.

Of course, it is also possible to configure a rail movable folding door hinge device 900 provided with rotating rollers 760 and 770 in the lower part of the folding door.

By applying the rail movable folding door hinge device 900 is configured to be arranged on four or more folding doors (1000).

The terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, so at the time of the present application, they can be replaced. It should be understood that there may be various equivalents and variations.

100: folding door hinge device 110: left hinge groove 120: left hinge body
121: locking bracket moving hole 122, 123: fixing screw hole 124, 164: vertical frame insertion part
125,165: folding door hinge device end 140: left hinge piece
150: right hinge groove 160: right hinge body 161: fixing part insertion hole
162,163: fixing screw hole 180: right hinge piece 190: hinge hinge
200: folding door left vertical frame portion 210: left hinge groove insertion portion 220, 230: groove portion 240, 340: female threaded portion
300: folding door right frame portion 310: right hinge groove insertion portion
400: Fixed part 410: Fixed part upper part 420: Elastic part 430: Lock part
440: body part 500: lock
600: soft part 610: soft auxiliary part 620,630: protrusion
700: rail moving part 780: second rail moving part 710,720: rail moving roller part
715,725: Rail moving roller hole 730,740,783,785: hinge shaft support
731,741,781,784: hinge hole 750,786: hinge shaft support connection
760,770: rotary roller 782: flat part
800: second rail moving part folding door hinge device
900: rail movable folding door hinge device 1000: folding door
1100,1200: folding door horizontal frame

Claims (11)

Left hinge piece;
A right hinge piece configured on the right side corresponding to the left hinge piece;
The left hinge piece and the right hinge piece are configured to be rotated by a hinge hinge,
A left hinge body coupled to the left hinge piece;
Between the left hinge piece and the left hinge body part, the left hinge groove part, which is a U-shaped groove part in the longitudinal direction, is formed and inserted into the left hinge groove inserting part configured in the longitudinal direction to the left vertical frame part of the folding door and coupled,
The vertical frame on the left side of the folding door is configured as a rectangular space, and the female screw is separately configured in the lengthwise direction in the rectangular space, and is arranged spaced apart from one side of the square,
The left hinge body portion has a configuration of the left hinge body portion to be inserted into a space excluding the female screw portion so as to correspond to the female screw portion of the left vertical frame portion of the folding door, and the left hinge body portion is configured to surround the female screw portion, thereby forming a fixing screw hole. Configure,
In a space spaced apart from the female screw portion of the rectangular space of the left vertical frame of the folding door, the left hinge body part is configured to closely contact the rectangular space of the left vertical frame of the folding door from the top,
A right hinge body coupled to the right hinge piece;
Between the right hinge piece and the right hinge body part, a right hinge groove of a shape in a longitudinal direction is configured to be inserted and coupled with a right hinge groove insertion part configured in a longitudinal direction on the right vertical frame of the folding door,
The folding door right side vertical frame part is configured as a rectangular space, and the female screw part in the rectangular space is configured separately in the longitudinal direction, but is arranged spaced apart from one side of the square,
The right hinge body portion has the configuration of the right hinge body portion to be inserted into a space excluding the female screw portion so as to correspond to the female screw portion of the foldable right vertical frame portion,
The right hinge body portion is configured to surround the female screw portion to constitute a fixing screw hole,
The folding door hinge device, wherein the right hinge body is configured to closely contact the rectangular space of the right vertical frame of the folding door in a space spaced apart from the female screw part of the rectangular space of the right vertical frame of the folding door. The folding door hinge device according to claim 1, wherein a hole is formed in the left hinge body part and the right hinge body part to insert a lock or a fixing part. The method of claim 1, wherein the left hinge body and the right hinge body each constitute a fastener moving hole or a fixing part insertion hole, and the left hinge body and the right hinge body each have an H shape, and the H One end of the configuration of the shape is a folding door hinge device, characterized in that it is configured to be disposed outside each of the rectangular spaces of the right vertical frame of the folding door and the left vertical frame of the folding door
The method of claim 1, wherein the left hinge groove is inserted into the left hinge groove insertion portion configured in the left vertical frame portion of the folding door,
The folding door hinge device, characterized in that the right hinge groove portion is configured to be inserted into the right hinge groove insertion portion configured in the right vertical frame portion of the folding door and fixed. According to claim 4, wherein the folding door left side vertical frame portion and the folding door right side vertical frame portion each constitutes a groove portion at the side end formed in the longitudinal direction,
The flexible part is configured to couple the protrusion formed in the longitudinal direction to the groove part at the side end of the flexible part, so that physical damage due to pinching when opening or closing the folding door does not occur, the flexible part Foldable door hinge device, characterized in that the configuration is coupled to each [6] The folding door hinge device according to claim 5, wherein the flexible portion further comprises an auxiliary flexible portion in the longitudinal direction of the flexible portion. A rail moving part folding door hinge device, characterized in that the rail moving part is further configured on the hinge hinge in the folding door hinge device of claim 1. The method of claim 7, wherein the rail moving part is configured to freely rotate around the hinge hinge by configuring a hinge hinge hole to be inserted into the hinge hinge,
The hinge hinge hole is configured at one end of the hinge shaft support,
Up and down, the two hinge shaft support parts are connected through a hinge shaft support connection part, and a rail moving roller part is configured on the upper part of the hinge shaft support part connection part to be configured at the upper and lower parts of the folding door when the folding door is opened and closed. Rail moving part folding door hinge device, characterized in that configured to be movable within the folding door horizontal frame. [10] The folding door hinge device of claim 8, wherein the rail movable roller part constitutes a rail movable roller part hole to form a rotating roller in the rail movable roller part hole. [10] The folding door hinge device of claim 9, wherein the rotary roller comprises two. A folding door, characterized in that the rail moving part folding door hinge device of claim 7 is applied.

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