KR20200121148A - A system for opening and closing sliding door - Google Patents

Abstract

The present invention relates to a sliding door opening and closing system capable of automatic closing operation while suppressing noise. The sliding door opening and closing system includes: a guide rail installed side by side in the opening and closing direction of a plurality of door bodies that are overlapped and opened; an interlocking device that is slidably installed on the guide rail and supports the plurality of door bodies to open and close; and an automatic closing device that is installed on the guide rail and provides an elastic force to automatically open and close the plurality of door bodies that are moved to the open position by interlocking with the interlocking device.

Description

Sliding door opening and closing system {A SYSTEM FOR OPENING AND CLOSING SLIDING DOOR}

The present invention relates to a sliding door opening and closing system, and more particularly, to a sliding door opening and closing system that enables an opening and closing operation by interlocking at least two or more sliding doors overlapping or unfolding each other and automatically closing the sliding door.

In general, the door can be classified into a sliding door and an opening door. In the case of a sliding door, there is an inconvenience of securing a rotation radius of the door, and thus restrictions are placed on the applied place.

On the other hand, in the case of a casement door, it includes a door frame and a door body that is installed to slide along the door frame. The door body may be installed so that an opening/closing operation is performed by an operation entering or exiting into a so-called door pocket space formed by extending from the door frame.

A typical casement door is installed to slide along a rail installed on the door frame. Therefore, when the door is pushed toward the pocket and moved, the entrance is opened, and when the door is slid back to its original position, the entrance is closed.

In the case of such a hinged door, the size of the door is determined according to the width of the entrance, but if the entrance is wide, a plurality of door bodies are installed on the rail so as to cross and slide to operate individually or open and close in conjunction with each other. It is possible to easily secure space in the pocket and reduce the size of individual door bodies.

As an example, Korean Patent Registration No. 10-1093545 discloses that a traction belt is movably connected to a gear pulley installed on both sides of a central door so that a plurality of doors can be interlocked, and a rack on the inside of the door disposed on both sides of the central door. A configuration in which a gear is installed so as to be operated in conjunction with first and second pinion gears that are installed to rotate in association with the gear pulley is described.

According to the conventional door system as described above, when one of the three doors is pushed, the three doors are interlocked and opened while being overlapped, and when moved to the original position, the overlapped portion is opened and closed again.

However, according to the prior art as described above, it is not easy to connect the traction belt, and it is difficult to adjust the tension of the shoulder belt.

In addition, in the opening and closing operation by interlocking multiple doors, the opening operation is very cumbersome when a person entering and exiting the door manually pushes the door to open and exit, and the closing operation is also required manually. Is widely applied.

In this way, when all of the opening and closing operations are manual, it is inconvenient to use. In recent years, a door system that automatically opens and closes a door using a sensor or a button type switch has been applied. However, in the case of such an automatically driven door system, electric power must be used, and many parts such as sensors, switches, and motors are used, so there is a disadvantage of increasing installation cost and maintenance cost.

In view of this point, in recent years, a so-called semi-automatic door device has been applied in which the opening operation is performed manually but the closing operation is automatically closed.

In the case of such a semi-automatic door device, a spring is installed between the door frame and the door body in which the door body slides, and the spring is elastically deformed when the door body is opened, and then the door body is automatically closed by the elastic restoring force. Have a composition.

However, according to the above configuration, there is a problem in that the spring is exposed to the outside and interferes with the surrounding parts to prevent smooth operation, and furthermore, friction noise is generated due to contact with the surrounding parts.

Therefore, when repeatedly used, as well as damage to the spring, there is a disadvantage that the operating noise increases, causing inconvenience to the user.

Korean Patent Registration No. 10-1093545

An object of the present invention is to provide a sliding door opening/closing system that can be easily opened and closed by interlocking a plurality of doors, and is capable of automatic closing operation while suppressing noise generation.

The sliding door opening and closing system of the present invention for achieving the above object includes: guide rails installed side by side in the opening and closing direction of a plurality of door bodies that are opened while overlapping each other; An interlocking device that is slidably installed on the guide rail and opens and closes by supporting the plurality of door bodies; And an automatic closing device that is installed on the guide rail and provides an elastic force for automatically opening and closing the plurality of door bodies that are interlocked by the interlocking device and moved to the open position.

Accordingly, a plurality of doors can be interlocked so that they are overlapped or unfolded so that the opening and closing operation can be performed.

Here, the plurality of door bodies include first to second door bodies overlapping or unfolding each other,

The interlocking device may include an intermediate sliding part connected to the guide rail in a reciprocating manner and supporting the second door; A fixed guide portion coupled to and fixed to the guide rail and supporting the first door body; An outer sliding part connected to the guide rail so as to be reciprocally slidable and supporting the second door body; An interlocking belt installed to enable reciprocating travel at both ends of the intermediate sliding part; A first connecting member that connects the interlocking belt and the fixed guide part so that the intermediate sliding part moves reciprocally relative to the fixed guide part when the interlocking belt is driven; And a second connection member that connects the interlocking belt and the outer sliding part to allow the interlocking belt to travel in conjunction with the movement of the outer sliding part.

Accordingly, it is possible to automatically and naturally close a plurality of doors in an open state, and noise generation during opening and closing operations can be reduced.

In addition, each of the first and second connection members, the connection member body fixed to each of the fixing guide portion and the outer sliding portion; It is preferable to include a; belt clamping portion extending to the front end of the connecting member body, clamping and fixing the interlocking belt.

Accordingly, the interlocking belt can be configured in a closed loop form, and the intermediate sliding portion can be easily connected to each other so as to be interlocked with the fixed guide portion and the outer sliding portion.

In addition, the belt clamping part, a pair of clampers that are spaced apart from and extend to face each other in the connecting member body, and clamp the interlocking belt; And a locking protrusion which protrudes from the end of the pair of clampers in a direction facing each other, and is fitted into and coupled to a valley among mountains and valleys formed on the outer surface of the interlocking belt.

Thereby, the interlocking belt can be firmly connected to the connecting member.

In addition, it is preferable to further include a damper device installed on the guide rail to absorb the impact of a plurality of doors that are automatically moved by the automatic closing device and completely close at a low speed.

As a result, it is possible to prevent an impact during the automatic closing operation of the door and to control the door to be completely closed until the end.

In addition, the automatic closing device may include an outer pipe disposed parallel to the guide rail and fixedly installed, and open at both ends; An inner pipe fixedly installed inside the outer pipe and open at both ends; A fixing cap coupled to one end of the outer pipe; A spring received inside the inner pipe, one end connected to the fixing cap and the other end exposed to the other end of the outer pipe; A spacer installed between the inner pipe and the outer pipe at the other end of the outer pipe to fix the other end of the inner pipe; and a spacer positioned at the other end of the outer pipe to connect the other end of the spring, and the interlocking device It is good to include a; interlocking member connected to

Accordingly, it is possible to minimize the noise generated during the operation of the automatic closing device, it is possible to provide a high-quality door device.

According to the sliding door opening and closing system of the present invention, it is possible to open and close an entrance door made of a plurality of doors by overlapping or unfolding while the doors (body) are interlocked with each other to relatively slide.

In addition, it is possible to automatically close the door in an open state in which the doors are interlocked. In addition, it is possible to minimize the operating noise during the opening and closing operation.

In addition, it is possible to prevent a collision between the door and the door frame during the automatic closing operation of the door, solve the problem that the door cannot be completely closed due to the collision, and close the door naturally.

In addition, since the interlocking device can be assembled to the guide rail in a sliding manner, there is an advantage in that it is easy to assemble and separate work during repair and replacement.

1 and 2 are front views each showing an open/close state of a door installed by applying a sliding door opening and closing system according to an embodiment of the present invention.
3 is a schematic cross-sectional view showing a state in which a guide rail is installed in the interlocking device of the sliding door opening/closing system according to an embodiment of the present invention.
4 is a plan view illustrating a state of an interlocking device in the state of FIG. 1.
5 is a plan view illustrating a state of an interlocking device in the state of FIG. 2.
6 is a front view illustrating the interlocking device in the state of FIG. 4.
7 is an enlarged plan view of a main part of FIG. 4.
8 is a plan view for explaining a state in which the first connection member and the interlocking belt of FIG. 7 are coupled.
9 is a side view showing the first and second connecting members shown in FIG. 7.
10 is a view showing an enlarged main part of FIG. 8.
11 is a schematic plan view showing the automatic closing device illustrated in FIG. 1.
Each of FIGS. 12 and 13 is a schematic cross-sectional configuration diagram for explaining the automatic closing device shown in FIG. 11.

Hereinafter, a sliding door opening/closing system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 2 are front views showing a sliding door opening and closing system according to an embodiment of the present invention. Specifically, FIG. 1 is a view showing a state in which the door bodies 10, 20, and 30 are slidingly opened and closed by applying the slide interlocking device 200, and the entrance is closed, and FIG. 2 is the door bodies ( 10, 20, 30) is a front view showing a state in which the door pocket (not shown) is overlapped and the doorway 50 is opened.

That is, in the embodiment of the present invention, a configuration capable of opening and closing by sliding the three door bodies 10, 20, and 30 to overlap or unfold by sliding will be described as an example.

The sliding door opening/closing system according to an embodiment of the present invention includes a guide rail 100, an interlocking device 200, an automatic closing device 300, and a damping device 400.

Referring to FIG. 3, the guide rail 100 may correspond to the upper frame of the door frame, and may be installed separately from the door frame. This guide rail 100 is simple as shown in FIG. 3, the rail body 110, and the intermediate rail portion 111 formed by protruding from the rail body 110, and symmetrical on both sides of the intermediate rail portion 111 The first and second outer rail portions 112 and 113 are provided. The intermediate rail part 111 has a wider width than the first and second outer rail parts 112 and 113, but the height from the rail body 110 is the same. Guide ribs 111a, 112a, and 113a slidably supporting the interlocking device 200 are at the same height in the intermediate rail part 111 and the first and second outer rail parts 112 and 113, respectively. Are formed side by side.

1 to 6, the interlocking device 200 is for interlocking so that the three door bodies 10, 20, and 30 are overlapped or unfolded during the opening and closing operation. The interlocking device 200 includes an intermediate sliding part 210, a fixed guide part 220, an outer sliding part 230, an interlocking belt 240, a first connection member 250, and a second connection member 260. It is equipped with.

The intermediate sliding unit 210 is coupled to the intermediate door body 20, the fixed guide unit 220 is connected to the first outer door body 20, and the outer sliding unit 230 is connected to the second outer door body 30 ).

The intermediate sliding part 210 includes an intermediate slider 211 coupled to the intermediate door body 20, a pair of guide members 213 coupled to both ends of the intermediate slider 211, and an intermediate slider 211 It has a pair of belt pulleys 215 installed at both ends of the. The intermediate door body 20 is connected to the intermediate slider 211, and the guide member 213 is slidably coupled to the guide rib 111a of the intermediate rail part 111 of the guide rail 100, thereby guiding A reciprocating sliding motion is possible along the rail 100.

At one end of the intermediate slider 211, a connection part 211a to which the automatic closing device 300 is connected is formed by bending and extending. Further, a damper interference bracket 211b for interfering with the damping device 400 is bent and protruded at the other end of the intermediate slider 211. In the belt pulley 215 rotatably installed at both ends of the intermediate slider 211, an interlocking belt 240 is installed to enable reciprocating travel.

The fixed guide part 220 is installed to be fixed in position on the first outer rail part 112 of the guide rail 100. This fixed guide part 220 has a fixed guide body 221 and a coupling guide member 223 coupled to both ends of the fixed guide body 221. The coupling guide member 223 is coupled to the first rail part 112 of the guide rail 100 by a sliding method. The fixed guide part 220 is installed to be fixed in a state in close contact with the pocket side pillar (vertical frame) of a door frame in a state that is fitted and coupled to the guide rail 100 in a sliding manner.

The outer sliding part 230 includes an outer slider 231 and outer guide members 233 respectively installed at both ends of the outer slider 231. The outer slider 231 is slidably installed on the second rail part 113 of the guide rail 100 and is connected to the second door body 30. The outer guide member 233 is installed at each of both ends of the outer slider 231 and slides by being inserted into the guide rib 113a of the second rail part 113.

The interlocking belt 240 is installed on the intermediate sliding part 210 to enable reciprocating travel. The interlocking belt 240 has a configuration in which the peaks 241 and the valleys 242 are alternately formed at regular intervals on an outer surface not in contact with the belt pulley 125. The interlocking belt 240 is connected in a state in which both ends 243 are overlapped by the one connecting member 250 to form a closed loop, so that the belt pulley 125 on one top can be driven.

7 to 10, the first connection member 250 connects the interlocking belt 240 and the fixed guide part 220. The first connection member 250 includes a first connection member body 251 coupled to the coupling guide member 223 of the fixed guide part 220, and an interlocking belt at the end of the first connection member body 251 ( A belt clamping part 253 is provided to clamp and couple 240). The belt clamping part 253 has a pair of clampers 253a extending from the first connecting member body 251 to face each other. In a state in which the end portions 243 of the interlocking belt 240 are interposed between the clampers 253a, both clampers 253a are forcibly compressed and deformed, the end portions 243 of the interlocking belt 240 ) Are pressed in close contact with each other, and are clamped and connected by a clamper 253a. In addition, preferably, the locking protrusions 253b are formed to protrude to face each other at the ends of the clamper 253a, so that the valleys 242 of the interlocking belt 240 are fitted. Therefore, as shown in FIG. While connecting and fixing so as not to be released, it may be combined with the first connection member 240. Therefore, when the interlocking belt 240 is driven, the first connecting member 250 is interlocked to move, so that the intermediate sliding portion 210 is interlocked with the fixed guide portion 220 to be relatively moved.

The second connection member 260 has the same configuration as the first connection member 250, is installed on the outer sliding part 230, and is connected by clamping the interlocking belt 240. At this time, the interlocking belt 240 connected to the second connection member 260 is clamped by the clamping portion 263 of the second connection member 260 in a folded state so as to overlap some sections, thereby being firmly coupled.

According to the interlocking device 200 having the above configuration, the third door 30 connected to the outer sliding part 230 is pushed to open the door, and the intermediate sliding part 210 and the intermediate sliding part 210 are fixed in the operation of closing the opened door. The guide part 220 and the outer sliding part 230 interlock to each other to open or close the entrance while performing an overlapping or unfolding motion.

The automatic closing device 300 is installed on the guide rail 100 and interlocked by the interlocking device 200 to automatically close the opened door bodies 10, 20, and 30. This automatic closing device 300 is to automatically close the door bodies 10, 20, 30 in a state where the door body 10, 20, 30 is interlocked and the doorway 50 is open. . 11 to 13, the automatic closing device 300 includes an outer pipe 310 that is open at both ends and is fixedly installed on the door frame, and an inner pipe that is fixedly installed inside the outer pipe 310 and open at both ends. 320, a fixing cap 330 coupled to one end of the outer pipe 310, and accommodated in the inner pipe 320, one end connected to the fixing cap 330, and the other end of the outer pipe A spring 340 exposed to the other end of the 310, an interlocking member 350, and a spacer 360 are provided.

An inner pipe 320 is inserted and installed in the outer pipe 310. The inner pipe 320 has a shorter length than the outer pipe 310 and has an outer diameter smaller than the inner diameter of the outer pipe 310. Accordingly, a space is formed between the outer pipe 310 and the inner pipe 320.

The fixing cap 330 is coupled to one end of the outer pipe 310 to support one end of the inner pipe 320. This fixing cap 330 is a fixed cap body 331 having a size larger than the inner diameter of the outer pipe 310, and the fixed cap body 331 extends in a cylindrical shape from one end of the outer pipe 110 by pressing It has a coupling portion (333). An annular coupling groove 135 is formed at the end of the coupling part 333 in an annular shape to which the inner pipe 320 is inserted and coupled. Therefore, the first end of the inner pipe 320 is forcibly inserted into the coupling groove 135 to be coupled. Then, after inserting the inner pipe 320 from one end of the outer pipe 310, the coupling portion 333 may be forcibly press-fitted to one end of the outer pipe 310 to be fixed. Then, one end of the inner pipe 320 is fixedly installed at one end of the outer pipe 310, and is located at the center of the inside of the outer pipe 310. In addition, one end of the spring 340 is connected to an end of the fixing cap 330.

The spring 340 is received in the inner pipe 320, one end is connected to the fixing cap 330, the other end is exposed to the outside of the other end side of the outer pipe 310 is connected to the interlocking member 350.

The interlocking member 350 is located on the other end side of the outer pipe 310, and a spring 340 is connected to one end thereof. Further, a door connection bracket 500 to be described later is connected to the other end of the interlocking member 350.

The spacer 360 is installed between the other end of the inner pipe 320 and the other end of the outer pipe 310 to support the inner pipe 320 so that the posture can be fixed to the inner center of the outer pipe 310. Specifically, the spacer 360 has a spacer body 361 and a coupling portion 363 extending cylindrically from an end of the spacer body 361 and fitted between the outer pipe 310 and the inner pipe 320. The spacer body 361 has a larger size than the outer pipe 310. In addition, the spacer 360 is formed to pass through the through hole through which the spring 340 passes through both ends. By the spacer 360 having this configuration, the other end of the inner pipe 320 may be supported so that the posture is fixed at the inner center of the outer pipe 310. Of course, since the spacer body 361 has the same outer diameter as the coupling portion 363, it may be completely inserted and coupled to the inside of the outer pipe 310.

According to the automatic closing device 300 of the above configuration, the inner pipe 320 is installed inside the outer pipe 310, and the spring 340 is accommodated in the inner pipe 320, so that the spring 340 It is possible to minimize the noise generated by the spring during expansion and contraction operation. In particular, a space is secured between the outer pipe 310 and the inner pipe 320 to block noise generation.

In addition, by forming the inner diameter of the inner pipe 320 to a size corresponding to the size of the spring 340, the spring 340 makes a smooth contact with the inner surface of the inner pipe 320 and prevents collisions, etc. There is an advantage of suppressing noise generation.

Meanwhile, the automatic closing device 300 having the above configuration is installed on the door frame, and is preferably installed on the upper frame, that is, the guide rail 100.

One end of the fixing bracket 370 is fixed to the guide rail 100 by screws or the like, and the other end is coupled to the fixing cap 330. The outer pipe 310 may be fixed to the guide rail 100 using the fixing bracket 370. Here, since a long hole is formed in the fixing bracket 370, the fixing position of the fixing bolt is left as it is, and the position of the outer pipe 310 can be adjusted, that is, the length can be adjusted. Therefore, it can be applied to doors of various sizes.

The door connection bracket 380 has one end coupled to the interlocking member 350 and the other end coupled to the connecting portion 211a of the intermediate sliding portion 220.

According to the above configuration, as shown in FIG. 1, when the door is closed, the spring 340 is located inside the inner pipe 320 and does not expand.

In this state, when the door body 200 is slid to one side and opened as shown in FIG. 2, the interlocking member 350 is moved by the intermediate sliding part 220 that is slid and the spring 340 is moved to the inner pipe 320. It expands outward and is withdrawn.

And when the user releases the door body 200 in the open state of the door body 200 as shown in FIG. 2, the intermediate sliding part 220 is automatically returned by the elastic restoring force of the spring 340 and the interlocking device 200 ) Is interlocked, so that the closing operation of the door bodies 10, 20, and 30 can be automatically performed.

At this time, a damper device 400 is additionally installed on the guide rail 100, and the damper interference bracket 211b of the intermediate sliding part 220 that is moved to the closed position by the automatic closing device 300 is the damper device 400 It can be controlled to close slowly after being interfered with and the moving speed is reduced. Therefore, it is possible to prevent the door from colliding with the vertical frame of the door frame, and prevent the door from being completely closed by the collision repulsive force. Since the specific configuration of the damper device 400 is not a component limiting the present invention, detailed drawings and detailed descriptions will be omitted, and it is natural that a known damper device can be applied.

The automatic closing device 300 having the above configuration can allow the plurality of door bodies 10, 20, 30 to be automatically opened and closed, and occurs when the spring 340 expands and contracts during the opening and closing operation of the door. Noise can be minimized.

Therefore, there is an advantage of maximizing the user's satisfaction and providing a high-quality door device.

As described above, according to the sliding door opening/closing system according to the embodiment of the present invention, the first and second connecting members 250 and 260 are combined with the interlocking belt 240 to perform interlocking movement, thereby making the fixed guide part 210 ) And the intermediate sliding part 220 and the outer sliding part 230 are relatively interlocked with each other to be folded or unfolded so that the opening and closing operation of the plurality of door bodies 10, 20, and 30 can be made. At this time, the interlocking belt 240 is interposed between the clamping portions 253 and 263 of the first and second connecting members 250 and 260 to be firmly clamped and coupled, and the interlocking belt 240 can be maintained in a closed loop form. And, there is no need to use a separate coupling member for connecting the end of the interlocking belt 240.

In addition, the automatic closing device 300 may be installed so that the plurality of door bodies 10, 20, and 30 are automatically closed in an open state in an overlapping state. In particular, it is possible to suppress noise generation by minimizing friction during expansion and contraction of the spring 340 of the automatic closing device 300 during the opening and closing operation of the door bodies 10, 20, and 30.

In addition, by further installing the damping device 400, it is possible to absorb the shock during the closing operation of the door and to automatically close the door until the end.

Above, the present invention has been shown and described in connection with a preferred embodiment for illustrating the principle of the present invention, but the present invention is not limited to the configuration and operation as shown and described as such. Rather, it will be well understood by those skilled in the art that a number of changes and modifications to the present invention can be made without departing from the spirit and scope of the appended claims.

10, 20, 30.. 1st, 2nd, 3rd door body 50.. Entrance
100..guide rail 200..interlocking device
210.. Fixed guide part 220.. Middle sliding part
230..Outside sliding part 240..Interlocking belt
250,260..the first and second connecting members 300..automatic closing device
310..outer pipe 320..inner pipe
330..fixed cap 340..spring
350..interlocking member 360..spacer
400.. Damping device

Claims (6)

Guide rails installed side by side in the opening and closing direction of a plurality of door bodies that are opened while overlapping each other;
An interlocking device that is slidably installed on the guide rail and opens and closes by supporting the plurality of door bodies; And
A sliding door opening/closing system comprising: an automatic closing device installed on the guide rail and providing an elastic force for automatically opening and closing a plurality of door bodies that are interlocked by the interlocking device and moved to the open position. . The method of claim 1,
The plurality of door bodies include first to second door bodies overlapping or unfolding each other,
The interlocking device,
An intermediate sliding part connected to the guide rail in a reciprocating manner and supporting the second door;
A fixed guide portion coupled to and fixed to the guide rail and supporting the first door body;
An outer sliding part connected to the guide rail so as to be reciprocally slidable and supporting the second door body;
An interlocking belt installed to enable reciprocating travel at both ends of the intermediate sliding part;
A first connecting member that connects the interlocking belt and the fixed guide part so that the intermediate sliding part moves reciprocally relative to the fixed guide part when the interlocking belt is driven; And
And a second connection member that connects the interlocking belt and the outer sliding part to allow the interlocking belt to travel in conjunction with the movement of the outer sliding part. The method of claim 2, wherein each of the first and second connection members,
A connecting member body fixed to each of the fixing guide part and the outer sliding part;
And a belt clamping unit extending from the front end of the connecting member body and clamping and fixing the interlocking belt. The method of claim 3, wherein the belt clamping portion,
A pair of clampers spaced apart from each other and extending to face each other in the connecting member body, and clamping the interlocking belt; And
A sliding door opening/closing system comprising: a locking protrusion which protrudes from the end of the pair of clampers in a direction facing each other and is fitted and coupled to a valley among peaks and valleys formed on the outer surface of the interlocking belt. The method of claim 1,
A sliding door opening/closing system, further comprising a damper device installed on the guide rail to absorb the shock of a plurality of doors that are automatically moved by the automatic closing device and completely close at a low speed. The method according to any one of claims 1 to 5, wherein the automatic closing device,
An outer pipe disposed parallel to the guide rail and fixedly installed, and having both ends open;
An inner pipe fixedly installed inside the outer pipe and open at both ends;
A fixing cap coupled to one end of the outer pipe;
A spring received inside the inner pipe, one end connected to the fixing cap and the other end exposed to the other end of the outer pipe;
A spacer installed between the inner pipe and the outer pipe at the other end of the outer pipe to fix the other end of the inner pipe: And
And an interlocking member positioned on the other end side of the outer pipe, to which the other end of the spring is connected, and which is connected to the interlocking device.

Images