KR20170119079A - Folding door by hook structure with fuction of speed control and auto-moving - Google Patents

Abstract

The present invention relates to a folding door capable of adjusting opening and closing speeds and automatically transferring a folding door when opening and closing the folding door. More particularly, the present invention relates to a folding door that can be opened when the folding door is opened, The damper is formed so as to increase the elastic force of the elastic spring of the damper. When the damper is closed, the damper is automatically closed by using the elastic force of the damper, and the damper is closed gradually. The present invention relates to a folding door having a plurality of folding doors which are connected to each other and which are folded with each other and which can open and close the folding door when the folding door is opened, It is possible to increase the stability and usability of the user by adding an elastic force, and when the folding door is closed, The folding door is automatically closed by the elastic force applied to the door frame and the closing speed is buffered so as to buffer the impact of the door against the door frame and to automatically close the door automatically without any additional power device, And to provide a system in which the door is completely closed automatically.
It is also possible to provide a system in which the door is mutually coupled with a wire having a predetermined tension so as to include tension on the wire by the distance that the door is opened and automatically closed by using the tension when the door is closed. .
Further, it is an object of the present invention to provide a door system that allows a door to be kept in a completely closed state by using a magnet, and maintains the opened state when the door is fully opened.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding door,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a folding door capable of adjusting opening and closing speeds and opening and closing a folding door when the folding door is opened and closed. More particularly, It is formed to increase the elastic force of the spring. When it is closed, the damper is automatically closed by using the elastic force of the damper, and it has a function of closing gradually. In addition, the function of automatically closing the door by using the tension of the wire To the folding door.

Generally, Folding Door refers to a folding door literally, which can be used for replacing the inner and outer walls of a building wall. It is durable in response to mechanical external force. It is also suitable for external use due to its soundproof and windproof effect. . In addition, it is possible to secure the field of view by applying glass to the product, and it is also used for internal use because of its excellent design.

And folding doors open more than 90% of 50% of the existing doors in order to utilize the valuable space, so it provides a wide living space for residential use and facilitates customers' It is a tendency to be used for entrance or exit of houses, shops, and so on.

Such a folding door is designed to completely open the doorway in a place where there is no space for completely opening the door on the outside of the doorway of the wall. A door frame frame is formed along the doorway shape, and a plurality of sliding doors are hinged And one end of the sliding door is connected to rotate to one side of the door frame frame.

The conventional folding door has a plurality of doors connected to each other by a hinge so that the door is rotated at an undesired rotation speed due to a pressing force when the door is opened and closed, There is a problem that inconvenience is caused to the user.

Further, when the user unconsciously closes the folding door, the folding door can not be completely closed, and the folding door is maintained in an open state, so that the user again consciously confirms whether the folding door is completely closed.

Although the folding door system described above has many merits, the opening and closing speed of the door is gradually adjusted when the folding door is opened or closed to allow the user to predict the rotational operation range of the door. Further, There is a problem that the folding door is not required to be automatically opened and closed so as to be convenient and stable.

Korean Patent Publication No. 10-1219095 Korean Patent Publication No. 10-1456898 Korean Patent Publication No. 10-1485763

SUMMARY OF THE INVENTION It is an object of the present invention to provide a speed adjusting damper having a latching groove so that the opening speed of the door speed can be buffered when the folding door is opened and closed, And to provide a door device for extending shock absorption and noise, stability and life of the door.

In addition, when the folding door is closed, the door is automatically closed gradually and completely, so that the door opening / closing time can be predicted, thereby providing convenience and safety.

Another object of the present invention is to provide a door system in which a folding door is automatically closed gradually without a separate power unit.

It is also possible to provide a system in which the door is mutually coupled with a wire having a predetermined tension so as to include tension on the wire by the distance that the door is opened and automatically closed by using the tension when the door is closed. .

Further, it is an object of the present invention to provide a door system that allows a door to be kept in a completely closed state by using a magnet, and maintains the opened state when the door is fully opened.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above-mentioned problems, the present invention provides a folding door system, wherein a slide is inserted and mounted so as to be smoothly reciprocated within a slide passage formed in an upper chassis; A plurality of folding doors, each of which is fixedly mounted on the upper surface of the slide, are folded on each other and formed to be slidably opened and closed; A locking protrusion formed on an upper portion of the slide attached to the outermost folding door to which the door is closed; An elastic spring and a damping rod are formed from one side of the slide passage of the upper chassis to protrude the speed adjusting damper so as to have a speed adjusting function and an automatic feeding function; The wire spring portion is fixedly attached to the outermost frame side to which the door is closed, the wire spring is loosened from the spring portion, and the winding wire is mutually fixedly attached to the outermost slide; The folding door is opened and closed so that the wire is unwound and tension is applied to the wire so that the folding opening speed is buffered by the damper hooked to the hooking jaw and the elastic force is applied to the damper so; The present invention provides a folding door capable of controlling opening and closing speeds and automatically transferring by a damper and a spring unit.

As described above, according to the present invention, in a door system in which a plurality of folding doors are connected to each other and folded together and a door is opened and closed, a speed at which the door is opened when the folding door is opened is buffered, The folding door is automatically closed by the added elastic force even when the folding door is closed, and at the same time, the closing speed is buffered so as to buffer the impact of the door against the door frame, To automatically shut off the door without any power unit, to prevent shock and noise, and to automatically shut off the door.

It is also possible to provide a system in which the door is mutually coupled with a wire having a predetermined tension so as to include tension on the wire by the distance that the door is opened and automatically closed by using the tension when the door is closed. .

Further, it is an object of the present invention to provide a door system that allows a door to be kept in a completely closed state by using a magnet, and maintains the opened state when the door is fully opened.

1 is a schematic view of a folding door system;
FIG. 2 is a schematic view showing a latching jaw of a rotary slide engaged in a speed adjusting damper attached to an upper chassis of the present invention; FIG.
3 is a schematic view of a rotating slide and a latch jaw attached to a top surface of a folding door of the present invention.
Figure 4a is a schematic view of a folding door system being opened by a speed adjusting damper and spring portion of the present invention;
Figure 4b is a schematic view of a folding door system that is opened and closed by the speed adjusting damper and spring portion of the present invention.
Figure 4c is a schematic view of a folding door system closed by a speed adjusting damper and spring portion of the present invention.
5 is a schematic view showing a state in which the speed control damper and the engagement jaw are operated in correspondence with each other.
Figure 6a is a schematic view of a folding door system being opened by a speed-adjusting damper of the present invention.
Figure 6b is a schematic view of a folding door system opened by a speed-adjusting damper of the present invention;
7 is a schematic view showing a spring portion of the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In an embodiment of the folding door system according to the present invention,

In the folding door system 100,

The slide 40 is inserted and mounted so as to smoothly slide back and forth in the slide passage 11 formed in the upper chassis 10;

A plurality of folding doors 30 having the slide 40 fixedly mounted on the upper surface thereof are folded and slidably opened and closed, respectively;

(12) protruding from the upper portion of the slide (40) attached to the outermost folding door (30) to which the door is closed;

An elastic spring 55 and a damping rod 54 are formed from one side of the slide passage 11 of the upper chassis 10 so as to protrude and attach the speed adjusting damper 50 so as to have a speed adjusting function and an automatic feeding function ;

The wire spring portion 70 is fixedly attached to the outermost frame 75 side where the door is closed and the wire 71 is loosened from the spring portion 70 and fixed to the outermost slide 40 Adhered;

When the folding door 30 is opened and closed

The wire 71 is loosened and wound so as to apply an elastic force to the elastic force of the wire 71,

So that the folding opening speed is buffered by the damper (50) attached to the latching jaw (12), and at the same time, the elastic force is applied to the damper (50); The present invention relates to a folding door capable of controlling opening and closing speeds and automatically feeding by a damper and a spring unit.

Further, in a state in which the folding door system 100 is completely closed,

When the folding door 30 is opened

The wire 71 has an elastic force to return to the original length and the pulling door 30 is unlocked by a distance corresponding to the opening distance so that the latching jaw 12 is caught by the latching portion 57 of the corresponding damper 50, Start,

When the folding door 30 is continuously opened,

The wire 71 continues to be released by the distance that the wire 71 is released and maintains the elastic force and the engaging portion 57 is inserted and seated in the engaging groove 53 formed inside the damper 50, The rod 54 will remain stretched,

When the door 30 is opened,

The wire 71 continues to be released by the distance that it is released so as to maintain the elastic force and the engaging protrusion 12 is inserted and seated in the engaging groove 53, And the distance between the latching jaw 12 and the damper 50 gradually deviates,

When the door 30 is closed

The door 30 is automatically closed by the elastic force of the wire 71,

When the door 30 is kept closed,

The door 30 is automatically closed by the elastic force of the wire 71. The elastic force of the extended elastic spring 55 of the damper 50 while the latching jaw 12 is hooked on the latching part 57 The door 30 is automatically closed so as to buffer the closing speed; .

Further, the speed control damper 50

The damping rod 54 is connected horizontally and reciprocates in the cylinder. The damping rod 54 is vertically spaced apart from the damping rod 52 and is provided with an elastic spring 55, The elastic force is actuated when the movable member 57 horizontally moves,

The elastic force of the elastic spring 55 is increased to apply an elastic force to the damper 50. When the elastic force of the elastic spring 55 is applied to the damper 50, And serves as a buffer function for preventing the door 30 from opening rapidly,

When the door 30 starts to close and reaches the position where the engaging protrusion 12 and the engaging portion 57 are engaged with each other, the elastic force is restored and automatically closed, and the damping rod 54 So that the closing speed of the door 30 is buffered by the damping function of the door 30; .

In addition, the locking portion 57 of the speed adjusting damper 50 is formed of two protruding one-side locking portions 51 and the other side locking portion 52;

When the folding door 30 starts to be opened in a completely closed state, the one-side locking portion 51 is pulled by the locking jaws 12, so that the elastic spring 55 is stretched to increase the elastic force The damping rod 54 is provided with an elastic force to the damper 50 to prevent the door 30 from opening rapidly,

When the door 30 is continuously opened, the latching part 51 of one side of the damper 50 is inserted into the latching groove 53 to be passed without being caught by the latching jaw 12, 52 are formed so as to maintain the protruded state,

The door 30 is closed and opened again so that when the door 30 reaches a predetermined position, the latching jaw 12 passes through the one latching part 51 and touches the other latching part 52 At the same time, the one-side locking part 51 inserted in the locking groove 53 is protruded in the original state and the elastic spring 55 is released and the elastic force is restored and the locking jaw 12 pushes the other side locking part 52 So that the door 30 is automatically closed and the closing speed of the door 30 is buffered by the damping function of the damping rod 54 due to the damping liquid pressure in the cylinder. .

In addition, the wire 71 is always returned to the inside of the spring portion 70 in a natural state to form a winding state. When the door 30 is opened or closed, the wire 71 is unwound and wound, ; .

In addition, magnets 80 are mounted on both ends of the slide passages 11 formed in the upper chassis 10,

In a state in which the door 30 is completely closed.

And is formed to be mutually magnetically coupled with the engaging jaw 12 to maintain a completely closed state,

Even when the door 30 is fully opened,

So as to maintain a fully opened state by being mutually magnetically coupled with the locking protrusion 12; .

Hereinafter, a plurality of folding doors 100 according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7. FIG.

As shown in Fig. 1, the present invention is characterized in that a plurality of folding doors 30 are connected to each other so as to slide in one slide passage, to fold each other, to add a buffering function to the speed of the folding door when it is opened and closed, It is intended to provide a folding door system that increases the stability and convenience of a user by adding an automatic transfer function.

As shown in FIG. 2, the upper chassis 10 of the folding door system frame is formed with a passage 11 which is reciprocally moved so that the folding doors 30 are folded together.

A slide 40 is fixedly mounted on the upper surface of one end of the door 30 by means of a fixture 20 and is inserted and mounted in the passage 11 and smoothly reciprocated and folded.

One side of a plurality of folding doors 30 constituting the folding door system 100 is hinged to a column of a door frame and is fixedly folded and hinged while other folding doors are folded, And folded.

That is, the door 30 located at the inner side among the plurality of folding doors 30 is hinged to the upper chassis 10. When the door 30 located at the outermost position is opened and closed, the door 30 ) Are also folded together and opened and closed.

This is because the slide 40 is inserted and mounted in the slide passage 11 formed in the upper chassis 10 and the slide 40 is formed of a plurality of rotating rollers, It contacts the inner wall surface and smoothly slides and reciprocates.

The slide 40 is fixedly mounted on the upper surface of the folding door 30 so that the plurality of folding doors 30 are folded on each other and are slidably opened and closed. The slide 40 may be fixed to the upper surface of the end of the door 30 or may be fixed to the middle upper surface of the door 30.

As shown in Figs. 2 to 3,

A feature of the present invention is that the latching jaw 12 is formed on the slide 40 of the outermost folding door 30.

This is because the latching jaw 12 has a variety of shapes such as a circular shape or a square shape, and the latching jaw 12 has a sufficient function as long as it engages with the latching portion 52 of the speed adjusting damper 50 corresponding thereto.

The latching jaws 12 are interlocked with the speed adjusting damper 50 which is attached to the slide passage 11 of the upper chassis 10 so as to protrude from one side thereof.

The damper 50 is formed with an elastic spring 55 and a damping rod 54 so as to have a speed adjusting function and an automatic feeding function and corresponds to the engaging jaw 12 when the folding door 30 is opened So that the opening speed of the folding door is buffered by the damper 50 and the elastic force is added at the same time.

When closed, is automatically closed by the elastic force, so as to buffer the closing speed; .

The operation of the folding door system of the present invention will be described in detail with reference to FIGS. 4A to 4C.

When the folding door system 100 is completely closed, the latching portion 52 of the damper 50 corresponding to the latching jaw 12 starts moving when the folding door 30 is opened.

 The latching portion 52 means an integral structure including two protruding one side latching portions 51 and the other side latching portion 52.

When the outermost door 30 is opened, the elastic spring 55 constituting the damper 50 is stretched by the horizontal movement of the latching portion 57 which is engaged with the latching jaw 12, So that the door 30 is strongly opened and slowly opened by the spring 55. As a result, the door is opened strongly so that a slow opening effect is generated, thereby increasing the stability of the user and adding an elastic force to the damper (50).

When the folding door 30 is continuously opened, the one-side locking portion 51, which is a constitution of the locking portion 57, is inserted and seated inwardly into the locking groove 53, and the elastic spring 55 and the damping rod 54 The elastic force is maintained and added.

The one engaging portion 51 and the other engaging portion 52 constituting the engaging portion 57 are simultaneously moved horizontally and the engaging portion 51 is engaged with the engaging groove 53 as shown in FIG. So that the one latching part 51 is inserted into the damper 50 so as not to be caught by the latching jaw 12 and the other latching part 52 is inserted into the damper 50 as it is, And keeps the touch when the door is closed again.

 When the door 30 is continuously opened, the damper 50 is prevented from being caught by the latching jaws 12 and the positions of the latching jaws 12 and the damper 50 are displaced from each other. The damper 50 fixedly attached to the spring 55 maintains the elastic spring 55 in a stretched state and includes an elastic force.

When the folding door 30 is continuously opened, the one side latching part 51 is inserted into the latching groove 53 formed inside the damper 50, The spring 55 is maximally extended, and the damper rod 54, which is connected to the same vertical surface as the engagement portion 57, is in a state of being extended to the maximum length.

When the door 30 is continuously opened in this state, the speed adjusting damper 50 is completely removed from the position of the latching jaw 12, and the spring 55 and the damper rod 54 of the speed adjusting damper 50 And is fixedly attached to the upper chassis 10 while maintaining the maximum stretched state.

4C,

When the door 30 is closed and the latching jaw 12 of the door 30 reaches a predetermined position, the latching jaw 12 passes through the latching part 51 of the latching part 57 without being caught by the latching part 51 The one side engaging portion 51 of the engaging groove 53 comes out and protrudes again so that an elastic force is generated while the elastic spring 55 is disengaged .

At the same time, the latching jaw 12 is again caught by the latching portion 57, and the elasticity of the elastic spring 55 is released, and the door 30 is automatically closed by the elastic force, So that the door 30 is completely closed.

4C and FIG. 5 will be described in detail with reference to FIG. 4A and FIG. 5B. The door 30 is in a closed state. When the door 30 reaches a certain position, The engaging jaw 12 is completely engaged with the engaging portion 52 while the other engaging portion 52 is touched with the engaging groove 53. At the same time, 51 are pulled out, and the one-side locking part 51 is formed to push the locking step 12.

Due to this, the door 30 is automatically closed by the elastic force of the spring 55 which has been maximally extended, and the damper rod 54 is gradually inserted into the cylinder.

When the damper rod 54 enters the cylinder, it functions as a buffer to reduce the closing speed of the folding door 30 due to the damping liquid pressure contained in the cylinder. Therefore, even if the door 30 is strongly closed, the door frame is automatically closed by the elastic force at a certain point at which the door frame is completely closed, so that an uncomfortable feeling such as shock or noise is not generated.

For this purpose, the speed control damper 50 fixed to the slider passage 11 of the upper chassis 10

And a damping rod 54 which is horizontally connected to the locking part 52 and reciprocates in the cylinder is attached to the locking part 57. An elastic spring 55 is vertically spaced from the locking part 57, So that the elastic force is activated when the portion 57 reciprocates,

The elastic force of the elastic spring 55 is increased to apply an elastic force to the damper 50 and to prevent the door 30 from being opened rapidly when the folding door 30 starts to be opened in a completely closed state, In addition,

When the door 30 is closed, the elastic force is restored and automatically closed so that the closing speed of the door 30 is buffered by the damping function of the damping rod 54 due to the damping liquid pressure in the cylinder. .

The engaging portion 57 of the speed adjusting damper 50 is formed of one protruding one side engaging portion 51 and the other side engaging portion 52 so as to be engaged with each other and to be engaged with each other.

When the folding door 30 starts to be opened in a completely closed state, the one side latching part 51 is pulled by the latching jaw 12 provided corresponding thereto, and the elastic spring 55 connected to the latching part 57 So that the elastic force is increased to apply an elastic force to the damper 50 and prevent the door 30 from opening rapidly.

When the door is continuously opened, the one-side latching part 51 is inserted into the damper 50 to be inserted without being caught by the latching jaw 12, and the other latching part 52 is maintained in a protruded state .

When the door 30 is closed

The engaging jaw 12 passes through the one engaging portion 52 inserted into the damper 50 and touches the other engaging portion 52 which is held by the projection.

At the same time as the touching, the one-side locking part 52 returns to its original state and protrudes. As the elastic spring 55 is released and the elastic force is restored, the one-side locking part 52 starts to push the locking jaw 12 So that the door 30 is automatically closed and the closing speed of the door 30 is buffered by the damping function of the damping rod 54 due to the damping liquid pressure in the cylinder. .

The one engagement portion 51 of the damper 50 is moved horizontally along the guide portion 56 by the engagement protrusion 12 mounted on the outermost door of the folding door 30 as shown in Figs. 6A and 6B, And inserted into the latching groove 53 at the end portion and inserted into the damper 50 so as not to be caught by the latching jaw 12.

This will be described in detail. In the damper for speed control,

An outer stopping hook 12 is formed to be engaged with a guide forming two engaging portions 51 and 52 formed on one side and the other side;

When the slide is horizontally moved in one direction by the groove attaching portion 58 mounted along the inner groove, the one-side engaging portion 51 moves downward in the vertical direction to the engaging groove 53 of the inner groove, The guide is tilted so as to incline in one direction so that the stopping jaw 12 moves away from the guide without passing through the speed adjusting damper 50,

The other side engaging portion 52 is moved downward in the vertical direction to the engaging groove 53 and is inserted and seated so that the guide is inclined in the other direction and the engaging jaw 12 is moved away from the guide So as to pass through the speed regulating damper 50 without being caught by the speed regulating damper 50; .

The engaging portions (51, 52) of the guide

And are formed to protrude from the upper end surface of the main body and are spaced apart from each other by a predetermined distance so as to be inserted into the external stopping jaws 12, Move to mount;

A groove attaching portion 58 is formed on the lower outer side surface of each of the engaging portions 51 and 52 so as to slide in the inner groove so that the guide is slidably reciprocated;

When the two engaging portions 51 and 52 are inserted into the corresponding engaging grooves 53 and are vertically downwardly moved, the two engaging portions 51 and 52 are guided by the guide Is inclined to be inclined,

So that the engaging jaw 12 passes through the speed adjusting damper 50 without being caught.

The guide including the engaging portions 51 and 52 is one embodiment, and can be selectively applied as various other embodiments.

7 is a schematic view showing a spring portion of the present invention,

The wire spring portion 70 is fixedly attached to the outermost frame 75 side to which the door 30 is closed and the wire 71 is loosened from the spring portion 70, As shown in Fig.

The spring unit 70 includes a conventional spring 72 mounted thereon and the wire 71 is wound and unwound by the winding of the spring 72.

When the folding door 30 is opened

The wire 71 is loosened and a tension for winding the wire 70 back into the spring 70 is generated. When the door 30 is closed, the wire 71 is wound back into the spring 70, So that the door 30 is automatically closed by the tension.

Again,

With the folding door system 100 fully closed,

When the folding door 30 is opened

The wire 71 has a tension to return to its original length and the pulling door 30 is released by a distance that is open,

When the folding door 30 is continuously opened,

The wire 71 is continuously released by the opening distance to maintain the tension,

When the door 30 is opened,

The wire 71 is kept untwisted by the opening distance to maintain the tension.

When the door 30 is closed

 The door 30 is automatically closed by a tension to return back to the inside of the spring portion 70 by the tension of the wire 71. [

The wire 71 is always returned to the inside of the spring portion 70 in a natural state to form a winding state. When the door 30 is opened or closed, the wire 71 is wound and unwound, so; .

Further, the present invention is characterized in that a magnet is used to maintain the door 30 in a completely closed state or in an open state.

To this end,

And the magnets 80 are mounted on both end portions of the slide passage 11 formed in the upper chassis 10.

In a state in which the door 30 is completely closed.

The magnet 80 is magnetically coupled to the engaging jaw 12 so as to maintain a completely closed state,

Even when the door 30 is fully opened,

The magnet (80) is magnetically coupled to the engaging jaw (12) so as to maintain a fully opened state. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: upper chassis 11: passage
12: latching jaw 20: fastener
40: rotary slide 50: speed adjusting damper
51: one-side locking part 52:
53: latching groove 54: damping rod
56: guide portion 55: spring
57: engaging portion 58: engaging portion
70: spring portion 71: wire
72: spring 80: magnet
100: Folding door system

Claims (6)

In the folding door system 100,
The slide 40 is inserted and mounted so as to smoothly slide back and forth in the slide passage 11 formed in the upper chassis 10;
A plurality of folding doors 30 having the slide 40 fixedly mounted on the upper surface thereof are folded and slidably opened and closed, respectively;
(12) protruding from the upper portion of the slide (40) attached to the outermost folding door (30) to which the door is closed;
An elastic spring 55 and a damping rod 54 are formed from one side of the slide passage 11 of the upper chassis 10 so as to protrude and attach the speed adjusting damper 50 so as to have a speed adjusting function and an automatic feeding function ;
The wire spring portion 70 is fixedly attached to the outermost frame 75 side where the door is closed and the wire 71 is loosened from the spring portion 70 and fixed to the outermost slide 40 Adhered;
When the folding door 30 is opened and closed
The wire 71 is unwound, and the wire 71 is wound so as to apply tension to the wire 71,
So that the folding opening speed is buffered by the damper (50) attached to the latching jaw (12), and at the same time, the elastic force is applied to the damper (50); And a damper and a spring unit for controlling the open / close speed of the folding door. The method according to claim 1,
With the folding door system 100 fully closed,
When the folding door 30 is opened
The wire 71 is tensioned to return to the original length and the folding door 30 is unfolded by a distance that the folding door 30 is opened so that the latching jaw 12 is caught by the latching portion 57 of the corresponding damper 50, Start,
When the folding door 30 is continuously opened,
The wire 71 is continuously unwound to maintain the tension and the engaging portion 57 is inserted and seated inward in the engaging groove 53 formed in the damper 50 so that the elastic spring 55 and the damping The rod 54 will remain stretched,
When the door 30 is opened,
Since the wire 71 is continuously released by the distance to be opened to maintain the tension and the engaging protrusion 12 is inserted and seated inside the engaging groove 53, And the distance between the latching jaw 12 and the damper 50 gradually deviates,
When the door 30 is closed
The door 30 is automatically closed by the elastic force of the wire 71,
When the door 30 is kept closed,
The door 30 is automatically closed by the tension of the wire 71. The elastic force of the elastic spring 55 of the damper 50 is released by the elastic force of the damper 50 when the latching jaw 12 is hooked on the latching part 57 The door 30 is automatically closed so as to buffer the closing speed; And a damper and a spring unit for controlling the open / close speed of the folding door. 3. The method according to claim 1 or 2,
The speed control damper 50
The damping rod 54 is connected horizontally and reciprocates in the cylinder. The damping rod 54 is vertically spaced apart from the damping rod 52 and is provided with an elastic spring 55, The elastic force is actuated when the movable member 57 horizontally moves,
The elastic force of the elastic spring 55 is increased to apply an elastic force to the damper 50. When the elastic force of the elastic spring 55 is applied to the damper 50, And serves as a buffer function for preventing the door 30 from opening rapidly,
When the door 30 starts to close and reaches the position where the engaging protrusion 12 and the engaging portion 57 are engaged with each other, the elastic force is restored and automatically closed, and the damping rod 54 So that the closing speed of the door 30 is buffered by the damping function of the door 30; And a damper and a spring unit for controlling the open / close speed of the folding door. 3. The method according to claim 1 or 2,
The locking part 57 of the speed adjusting damper 50 is composed of one protruding one side engaging part 51 and the other side engaging part 52;
When the folding door 30 starts to be opened in a completely closed state, the one-side locking portion 51 is pulled by the locking jaws 12, so that the elastic spring 55 is stretched to increase the elastic force The damping rod 54 is provided with an elastic force to the damper 50 to prevent the door 30 from opening rapidly,
When the door 30 is continuously opened, the latching part 51 of one side of the damper 50 is inserted into the latching groove 53 to be passed without being caught by the latching jaw 12, 52 are formed so as to maintain the protruded state,
The door 30 is closed and opened again so that when the door 30 reaches a predetermined position, the latching jaw 12 passes through the one latching part 51 and touches the other latching part 52 At the same time, the one-side locking part 51 inserted in the locking groove 53 is protruded in the original state and the elastic spring 55 is released and the elastic force is restored and the locking jaw 12 pushes the other side locking part 52 So that the door 30 is automatically closed and the closing speed of the door 30 is buffered by the damping function of the damping rod 54 due to the damping liquid pressure in the cylinder. And a damper and a spring unit for controlling the open / close speed of the folding door. 3. The method according to claim 1 or 2,
The wire 71 is always returned to the inside of the spring portion 70 in a natural state to form a winding state. When the door 30 is opened or closed, the wire 71 is wound and unwound, so; And a damper and a spring unit for controlling the open / close speed of the folding door. 3. The method according to claim 1 or 2,
Magnets 80 are mounted on both ends of the slide passages 11 formed in the upper chassis 10,
In a state in which the door 30 is completely closed.
And is formed to be mutually magnetically coupled with the engaging jaw 12 to maintain a completely closed state,
Even when the door 30 is fully opened,
So as to maintain a fully opened state by being mutually magnetically coupled with the locking protrusion 12; And a damper and a spring unit for controlling the open / close speed of the folding door.

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