KR20120109207A - Triple door assemble - Google Patents

Abstract

PURPOSE: A semiautomatic and interlocked triple sliding door assembly is provided to close a first door at a proper speed and to supply enough buffering force to the first door using a second door. CONSTITUTION: A semiautomatic and interlocked triple sliding door assembly comprises a doorframe(400), first, second, and third doors(100,200,300), a pulling force supply unit(600), and a shock absorbing unit(700). The doorframe comprises a lower doorframe, a pair of side doorframes(420,430), and an upper doorframe(440). The first, second, and third doors are arranged inside the doorframe and are slid along upper and lower guide units of the lower and upper doors. The pulling force supply unit comprises a wire elastically supported by a spring. The shock absorbing unit is formed on the bottom of the upper doorframe and supplies shock absorbing force to the second door when the second door is closed.

Description

Semi-Automatic and Interlocking Triple Sliding Door Assemblies {TRIPLE DOOR ASSEMBLE}

The present invention can be opened and closed in a sliding method by interlocking the three-fold sliding doors interlocked interlocking doors, specifically, the front panel of the furniture or door or movable partition wall, and the doors interlocked with each other. A triple sliding door assembly.

In addition, the present invention relates to a semi-automatic interlocking sliding door assembly in which the door is semi-automatically closed. Specifically, the first door is automatically closed by a pulling force applying means after the first door is opened by the user. It relates to a semi-automatic interlocking sliding door assembly that induces a smooth closing of the second door and the first door linked to the second door by a shock absorbing means for closing the second door that is interlocked when the first door is closed.

In general, when a plurality of doors are installed in a sliding manner, an interlocking triple sliding door has appeared to open and close any one door to open and close the other door in a desired direction.

As a related art in this regard, domestic patent registration No. 10-0724597 "opening and closing interlock device", domestic utility model registration No. 20-0439141 "triple sliding door interlock device", domestic patent registration No. 10-0880272 " Sliding door interlock device "and the like has been proposed.

Such prior arts are considered to be integrated herein.

Korean Patent Registration No. 10-0724597, which is a prior art, has a form in which a switch interlock device is installed along an upper rail, and a door is installed in the switch interlock device. Therefore, this method is difficult to install the door because the door interlock device is installed on the upper rail first when the door is installed.

Korean Utility Model Registration No. 20-0439141 discloses an interlock device of a triple sliding door that can be manufactured by a simple structure of a three-folded door.

Korean Patent Registration No. 10-0880272 discloses an interlock using a towing belt with gears instead of wires.

Despite the various proposals of such interlocking triple sliding doors, the interlocking triple sliding doors developed to date have a very complicated structure and installation is not easy due to the complicated structure.

On the other hand, the present inventor has proposed the Korean Utility Model No. 20-2010-0012872 "interlocking triple sliding door", the prior art is considered to be integrated in the present specification.

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

In order to implement such a semi-automatic sliding door system, the upper part of the door should be provided to be slidable in the horizontal direction along the main bracket, and a pulling force applying means such as a wire elastically supported by a spring is connected to the door to open the door. If no external force is applied after the door is automatically closed by the pulling force applying means.

That is, the pulling force applying means continuously applies the pulling force to the door.

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

The shock absorbing means usually include a cylinder and a piston which emerges in the horizontal direction from the cylinder, thereby providing a cushioning force to the door before the door is closed to induce a smooth closing of the door.

As a conventional technology related to such a semi-automatic door system, Korean Patent No. 10-0547982 discloses a "no-power automatic sliding door", and the prior art is considered to be integrated in the present specification.

The problem of such a semi-automatic sliding door system will be described.

In the semi-automatic sliding door system, the piston which emerges from the cylinder in the horizontal direction is difficult to maintain the straightness in the horizontal direction due to its own weight when it protrudes from the cylinder very much, i.e., up to the maximum stroke.

Also in a semi-automatic sliding door system, the end of the piston moves partially with the door, and remains stationary, partly independent of the movement of the door.

That is, the piston of the shock absorbing means is sufficient to provide a shock absorbing force to the door immediately before the door is closed, and to provide a shock absorbing force to the door in the entire process of closing the door is not preferable in terms of slowing the closing speed of the door.

Therefore, the stroke of the piston is usually only about 1/2 of the movable range of the door.

Thus, when the door first starts to open, the piston pops out of the cylinder with the door, but when the piston pops up to its longest stroke, the piston and the door are separated from each other, leaving the piston in its position and only opening the door.

Then, when the door is automatically closed by the pulling force applying means, if the insertion housing provided in the upper part of the door meets the tip of the piston, the door is returned to the initial closed state by dragging the piston.

After the door is opened again, the door is opened and the piston is pulled out again.

At this time, the front end of the insertion housing and the piston provided in the upper portion of the door is normally maintained by the magnetic coupling.

Thus, if the magnetic coupling is weak, the piston and the door can be separated before the piston pops up to its longest stroke. If the piston does not protrude up to the longest stroke, the closing force of the door becomes difficult because the cushioning force provided by the piston as a cushioning means to the door is extremely small when the door is closed later.

In some cases, if the door is separated from the piston in a state where the door starts to open, there is little cushioning force provided to the door by the piston as a shock absorber when the door is closed later, and thus the door is closed with a great impact.

In the conventional semi-automatic sliding door system, the insert housing provided in the door to be magnetically coupled to the end of the piston is fixedly provided in a fixed position of the door.

Therefore, when the piston encounters the insertion housing without maintaining the straightness of the horizontal direction, the piston is dragged into the cylinder in the state of incomplete magnetic coupling with the magnetic material of the insertion housing, and the incomplete magnetic coupling later when the door pulls the piston. This allows the insert housing of the door to be easily separated from the piston. In other words, the insert housing may be released from the piston as soon as the door is opened.

With reference to the prior art as described above, the present invention seeks to introduce a semi-automatic closing mechanism into an interlocking triple sliding door assembly.

In addition, the door assembly aims to be constructed by an extremely simple assembly process.

The present door assembly also relates to a door assembly capable of constructing a semi-automatic interlock type without special modification to the door frame.

In addition, the door assembly, the pulling force applying means to apply the pulling force to the first door, the buffer means to provide a buffering force to the second door so that the first door closes at an appropriate speed, It aims to provide sufficient buffering power in one door.

In addition, the door assembly prevents the insert housing provided on the upper portion of the second door and the end portion of the piston from being incompletely coupled so that the piston can be stably protruded to the longest stroke, and the shock absorber is stably provided. We want to be able to cushion the door.

In order to solve the above problems, the present invention, the lower door frame having three rows of lower guides formed on the upper, a pair of side door frames provided on both sides of the lower door frame, provided across the top of the pair of side door frames A lattice-shaped door frame composed of an upper door frame having three rows of upper guide parts formed thereon; A first door, a second door, and a third door, the lower roller being guided in movement along the upper guide part and the lower guide part, the lower roller being rotated along the lower guide part and disposed in parallel with each other; The second door comprises a triple sliding door assembly disposed between the first door and the third door, the first door comprising: a first-first fixing plate provided on an upper side of the first door; A first-second fixing plate provided on the other side of the upper part of the first door and provided with a first-second connection plate having a first-two opening portion opened toward the second door; A 2-1 fixing plate provided on an upper side of the second door; A second-2 fixing plate provided on the other side of the upper part of the second door; A 3-1 fixing plate provided on an upper side of the third door and having a 3-1 connecting plate formed therein with a 3-1 opening portion opened toward the second door; A third-2 fixing plate provided on the other side of the upper part of the third door; A first-first roller support part having a lower part fixed to the first-first fixing plate and rotatably mounted with a first-first guide roller guided along the lower guide part; A 1-2 roller support portion having a lower portion fixed to the 1-2 fixing plate and rotatably mounted with a 1-2 guide roller guided along the lower guide portion at an upper portion thereof; 2-1, the lower part of which is fixed to the second fixing plate, and the second-first guide roller which is guided along the lower guide part is rotatably mounted on the upper part, and the second-first pulley is rotatably mounted on the middle part. Unwinding branch; A second-2 guide roller having a lower portion fixed to the second-2 fixing plate and rotatably mounted to a second guide roller guided along the lower guide portion, and a second pulley rotatably mounted at an intermediate portion thereof; Unpacking branch; A 3-1 roller support part having a lower part fixed to the 3-1 fixing plate and rotatably mounted with a 3-1 guide roller guided along the lower guide part on an upper part thereof; A 3-2 roller support part having a lower part fixed to the 3-2 fixing plate and rotatably mounted with a 3-2 guide roller guided along the lower guide part on the upper part; A traction wire mounted on the 2-1 pulley and the 2-2 pulley to form a closed loop; The first mounting part formed in the center and inserted into and mounted to the 1-2 openings of the 1-2 connecting plate and extending to both sides of the first mounting part, and having a larger diameter than the first mounting part. And a first wire passage through which the tow wire penetrates along a center of the first release preventing part and the first mounting part, and a first connection plate mounted to be fixed to the tow wire on the first door side. Sphere; A third mounting part formed at the center and extending to both sides of the third mounting part inserted into and mounted to the third opening of the third connecting part, and having a diameter larger than that of the third mounting part; And a third wire through path through which the tow wire penetrates along a center of the third detachment preventing part and the third mounting part, and a third connecting plate mounted to be fixed to the tow wire on the third door side. Sphere; A pulling force applying means provided at a lower portion of the upper door frame to apply a pulling force to the first door to close the first door; And a piston provided below the upper door frame and a piston protruding from the cylinder to provide a cushioning force to the second door when the second door is closed, the cylinder being positioned on an extended surface of the second door. Buffer means; And a control unit.

In the above, the fixing member provided on the second-2 fixing plate; A coil spring disposed in a horizontal direction and having one end fixed to the fixing member and the other end facing the end of the piston; An insertion housing having a funnel shape so that an end of the piston can be inserted at one side thereof, and an insertion housing made of a rubber material having the other side fixed to the other end of the coil spring; A magnetic body provided in the insertion housing to be magnetically coupled to the end of the piston; It is preferred to further comprise a.

In the above, it is preferable that the coil spring is a single coil spring having a convex shape in the longitudinal center thereof.

The present invention as described above can introduce a semi-automatic closing mechanism to the interlocking triple sliding door assembly. In addition, the door assembly has a structure that can be constructed by an extremely simple assembly process.

In addition, the door assembly can be built semi-automatic interlock without special modification to the door frame.

In addition, the door assembly, the pulling force applying means to apply the pulling force to the first door, the buffer means to provide a buffering force to the second door so that the first door closes at an appropriate speed, Provide sufficient cushioning capacity for one door.

In addition, the door assembly prevents the insert housing provided on the upper portion of the second door and the end portion of the piston from being incompletely coupled so that the piston can be stably protruded to the longest stroke, and the shock absorber is stably provided. The door can be fully buffered.

1 is a front view of the upper portion of the door assembly according to the present invention,
FIG. 2 is a perspective view of an upper portion of the first door of FIG. 1;
3 is a perspective view of an upper portion of the second door of FIG. 1;
4 is a perspective view of an upper portion of the third door of FIG. 1;
5 is a perspective view showing a state in which the doors are coupled to the upper door frame,
6 is a front view of a part related to the fixing member fixed to the second door;
7 is a perspective view of FIG. 6,
8 is a cross-sectional view taken along line AA of FIG. 6;
9 is an exploded perspective view of FIG. 6;
10 is a perspective view showing the structure of the 1-2 fixing plate;
11 is a cross-sectional view showing a state in which the towing wire and connecting plate mounting holes are coupled;
12 is a conceptual cross-sectional view immediately before the piston is inserted into the insert housing;
13 is a conceptual cross-sectional view of the piston is inserted and magnetically coupled to the insertion housing after FIG.
14 is a plan view showing an arrangement relationship of main parts in the state of FIG. 1;
FIG. 15 is a plan view showing an arrangement relationship of major parts with the doors open in FIG. 1; FIG.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, portions not related to the description are omitted, and like reference numerals are given to similar portions throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

1 is a front view of an upper portion of a door assembly according to the present invention, FIG. 2 is a perspective view of an upper portion of the first door of FIG. 1, FIG. 3 is a perspective view of an upper portion of the second door of FIG. 1, and FIG. 3 is a perspective view of the upper part of the door, FIG. 5 is a perspective view showing a state in which the doors are coupled to the upper door frame, FIG. 6 is a front view of a fixing member related part fixed to the second door, FIG. 7 is a perspective view of FIG. 6, and FIG. 8 6 is an AA reference cross-sectional view of FIG. 6, FIG. 9 is an exploded perspective view of FIG. 6, FIG. 10 is a perspective view showing the structure of the first-second fixing plate, and FIG. 12 is a conceptual cross-sectional view of the piston immediately before being inserted into the insert housing, Figure 13 is a conceptual cross-sectional view of the piston is inserted and magnetically coupled to the insert housing after Figure 12, Figure 14 shows the arrangement of the main parts in the state of Figure 1 Top view, FIG. 15 shows the main view of the doors opened in FIG. This is a plan view showing the arrangement of the required parts.

This embodiment is composed of three doors, specifically, the first door 100, the second door 200, the third door 300 and the door frame 400.

The door frame 400 includes a lower door frame (not shown), a pair of side door frames 420 and 430, and an upper door frame 440.

Side door frames 420 and 430 are provided at both sides of the lower door frame (not shown), and the upper door frame 440 is provided while crossing the upper side of the side door frames 420 and 430, and the door frame 400 has a grid shape as a whole. Have

Three rows of lower guide parts (not shown) are formed at an upper part of the lower door frame (not shown), and three rows of upper guide parts 441 are formed at a lower part of the upper door frame 440.

The first door 100, the second door 200, and the third door 300 are disposed in parallel to each other in the grid-shaped door frame 400.

Each door (100, 200, 300) is guided to move along the upper guide portion 441 and the lower guide portion (not shown).

In addition, the first door 100, the second door 200, the third door 300 is provided with a lower roller (not shown) in each of the lower portion to move along the lower guide portion (not shown). Since the structure of the lower roller is a general technology in the sliding door, a detailed description thereof will be omitted. However, in the present embodiment, the doors 100, 200, and 300 are not supported by the upper door frame 440 but are supported by the lower door frame (not shown), and the upper door frame 440 merely guides the movement. Please note that it only plays a role.

In addition, the first door 100, the second door 200, and the third door 300 are arranged in parallel with each other, the second door 200 in the middle of the first door 100 and the third door (300). Is placed.

Fixing plates 110, 120, 210, 220, 310, and 320 are provided at both upper sides of the doors 100, 200, and 300, respectively.

In the present embodiment, each of the fixing plates 110, 120, 210, 220, 310, and 320 are screw-assembled to the doors 100, 200, and 300, which are omitted in the drawings.

The first door 100 has a 1-1 fixing plate 110 and the 1-2 fixing plate 120, the second door 200 has a 2-1 fixing plate 210 and the second-2 fixing plate 220 The third door 300 is provided with a third fixing plate 310 and a third fixing plate 320.

The first-first roller support part 111, the first-first fixing plate 110, the first-second fixing plate 120, the third-first fixing plate 310, and the third-second fixing plate 320 respectively. The two roller support part 121, the 3-1 roller support part 311, and the 3-2 roller support part 321 are provided.

The lower parts of the 1-1 roller support part 111, the 1-2 roller support part 121, the 3-1 roller support part 311, and the 3-2 roller support part 321 are the 1-1 fixing plates 110. The second fixing plate 120, the third fixing plate 310, and the third fixing plate 320 may be respectively fixed. The fastening method can be used usually screwed.

Each of the roller support parts 111, 121, 131, and 132 has a first-first guide roller 112, a first-second guide roller 122, a third-first guide roller 312, and a third on the top thereof. The two guide rollers 322 are rotatably mounted.

The 1-1st guide roller 112, the 1-2 guide roller 122, the 3-1 guide roller 312, the 3-2 guide roller 322 has a groove shape formed in the upper door frame 440 Guided along the upper guide portion 441. Of course, the first-first guide roller 112 and the 1-2 guide roller 122 is guided along the upper guide portion 441 formed for the first door 100, the 3-1 guide roller 312 And the third guide roller 322 is guided along the upper guide portion 441 formed for the third door (300).

The 2-1 fixing plate 210 and the 2-2 fixing plate 220 are provided with a 2-1 unfastening part 211 and a 2-2 roller support part 221, respectively.

Lower portions of the 2-1 unfolding part 211 and the 2-2 roller support part 221 are respectively fixed to the 2-1 fixing plate 210 and the 2-2 fixing plate 220. The fastening method can be used usually screwed.

2-1 guide rollers 212 and 2-2 guide rollers 222 are rotatably mounted on the unfastening parts 211 and 221, respectively, and the 2-1 pulleys in the middle thereof. 213 and the second pulley 223 are rotatably mounted.

The 2-1 guide roller 212 and the 2-2 guide roller 222 have an upper guide portion 441 having a groove shape formed in the upper door frame 440, specifically, an upper portion formed for the second door 200. Guided along guide portion 441. The guide roller to the pulley in the roller support portion to the unsupported portion may be mounted via a bearing or the like to enable smooth rotation.

The guide rollers 112, 122, 212, 222, 312, and 322 are preferably positioned at the same height as each other.

When the two pulleys 213 and 223 are mounted on the upper portion of the second door 200 as described above, the pull wires 510 constituting the closed loop are mounted to the two pulleys 213 and 223.

That is, the traction wire 510 moves in association with the rotation of the two pulleys 213 and 223.

Two connection plate mounting holes 520 and 530 are provided in the towing wire 510 as described above.

The connecting plate mounting hole includes a first connecting plate mounting station 520 fixed to the towing wire 510 on the first door side, and a third connecting plate mounting hole fixed to the towing wire 510 on the third door side ( 530). However, since the shape of the connecting plate mounting holes (520, 530) is the same, the structure thereof will be described below with reference to the first connecting plate mounting hole (520).

The first connection plate mounting hole 520 extends on both sides of the first mounting portion 521 and the first mounting portion 521 in the center, but has a diameter greater than that of the first mounting portion 521. Is made of.

In addition, a first wire through path 523 is formed to penetrate the traction wire 510 along the centers of the first separation preventing part 522 and the first mounting part 521 of the first connection plate mounting hole 520.

In addition, the first connecting plate mounting hole 520 is provided with a first fixing tool 524 in the form of a tube for fixing the first connecting plate mounting hole 520 to the towing wire 510.

The first fastener 524 is first inserted into the first wire through passage 523 of the first connecting plate mounting hole 520 and fixed, and then passes through the traction wire 510 through the hollow of the first fastener 524. After pressing the first fixture 524 by an external force is fixed to the traction wire 510.

Similar to the first connecting plate mounting hole 510, the third connecting plate mounting hole 530 has a third mounting part, a third detachment preventing part, a third wire passage, and a third fixing tool.

In addition, a part of the 1-2 fixing plate 120 is vertically bent to provide a 1-2 connecting plate 123, and the opening of the second connecting plate 123 toward the second door 200. 1-2 openings 123a are formed.

The 1-2 openings 123a are formed to have a structure in which the first mounting portion 521 is inserted and mounted, and the 1-2 openings 123a are opened toward the second door 200.

Therefore, when the first mounting portion 521 of the first connecting plate mounting hole 520 is inserted into the 1-2 opening 123a of the 1-2 connecting plate 123, the 1-2 connecting plate 123 is Due to the first separation preventing part 522 of the first connecting plate mounting hole 520 is moved together with the first connecting plate mounting hole 800.

The description of the relationship between the 1-2 connecting plate 123 and the first connecting plate mounting hole 520 is provided in the 3-1 fixing plate 310 and the 3-1 opening 313a is formed. The same applies to the relationship between the 3-1 connecting plate 313 and the third connecting plate mounting hole 530.

Hereinafter, the pulling force applying means 600 will be described.

In this embodiment, the pulling force applying means 600 is provided on the lower side of the upper door frame 440, specifically, the side door frame 420 side.

The pulling force applying means 600 is made of a wire 601 is elastically supported by a spring as in the prior art, the wire 601 is the upper portion of the first door 100, specifically, 1-1 It is connected to the roller support 111.

The detailed description of the pulling force applying means 600 is replaced by the conventional technology mentioned above.

The pulling force applying means 600 will always apply the pulling force to the first door 100, and if the first door 100 does not apply a separate external force after the first door 100 is opened, the pulling force applying means ( 600) to close automatically.

Meanwhile, the pulling force applying means 600 is disposed at a height between the first door 100 and the upper door frame 440, and the wire 601 extends along the upper portion of the first door 100. In order to prevent the pulling force applying means 600 from interfering with the first-first roller support part 111, the first-first fixing plate 110 is somewhat adjacent to the center rather than the outermost edge of the first door 100. Are arranged.

In contrast, other fixing plates 120, 210, 220, 310, and 320 are disposed at the outermost edges of the doors 100, 200, and 300 to prevent the doors 100, 200, and 300 from shaking.

In addition, the buffer means 700 in the present embodiment is also provided fixed to the lower portion of the upper door frame 440.

The shock absorbing means 700 includes a cylinder 710 and a piston 720 which oomphs in the horizontal direction from the cylinder 710 as in the related art.

The detailed description of the shock absorbing means 700 is replaced with the conventional technology mentioned above.

However, the shock absorbing means 700 does not directly buffer the closing of the first door 100, but indirectly provides the buffering force to the second door 200 when the second door 200 moves in the closing direction. The closing of the door 100 is buffered.

To this end, the cylinder 710 formed long in the longitudinal direction is fixed to the lower portion of the upper door frame 440 while being positioned on the extension surface of the second door 200.

On the other hand, the end of the piston 720 has a funnel shape.

The fixing member 230 is provided on the upper portion of the second door 200.

In this embodiment, the fixing member 230 is provided on the second-first fixing plate 210. Members such as bolts for coupling the fixing member 230 and the second-first fixing plate 210 are omitted. Although the fixing member 230 may be disposed at other positions, the fixing member 230 may be disposed at the outermost edge of the side door frame 420 of the second door 200. It is preferable to be provided at 210.

Since the fixing member 230 is fixed to the second door 200, the fixing member 230 moves in conjunction with the second door 200.

The first bolt 231 is fixed to the fixing member 230 in the horizontal direction.

The first screw thread 231a is formed in the first bolt 231.

One end of the jar-shaped coil spring 240 is wound around the first screw thread 231a on the first screw thread 231a, whereby the jar-shaped coil spring 240 is fixed to the fixing member via the first bolt 231. 230).

Jar coil spring 240 is arranged in a horizontal direction.

The complex coil spring 240 has a conical coil spring symmetrically provided and has a convex shape in its longitudinal center.

An insertion housing 250 is provided at the other end of the coil spring 240.

Insertion housing 250 is made of a rubber material, one side is fixed to the coil spring 240, the other side is formed with a funnel-shaped insertion portion 251.

In addition, a magnetic body 260 is provided at one side of the insertion housing 250.

In addition, the second bolt 270 is provided while penetrating the magnetic body 260, and the second bolt 270 is disposed in the horizontal direction toward the first bolt 231.

In addition, a second screw thread 271 is formed on the second bolt 270, and the other end of the coil spring 240 is wound along the second screw thread 271 and is fixed to the second bolt 270.

On the other hand, since the overall shape of the insertion housing 250 forms a cylindrical shape, the outer peripheral surface of the cylindrical outer peripheral surface 252 to form a cylindrical shape.

In addition, the guide housing 280 is fixed to the fixing member 230.

One side of the guide housing 280 is fixed to the fixing member 230, and is disposed in a form surrounding the insertion housing 250 inserted therein.

The guide housing 280 has a cylindrical inner circumferential surface 281 formed at the center thereof, and the cylindrical inner circumferential surface 281 is spaced apart from the cylindrical outer circumferential surface 252 of the insertion housing 250.

The guide housing 280 is made of rubber.

The installation process of the triple door having such a structure will be described.

Each fixed plate (110, 120, 210, 220, 310, 320) and its accessories are manufactured and then assembled.

In this state, the respective fixing plates are mounted on the doors 100, 200, and 300.

In addition, the towing wire 510 is mounted along the pulleys 213 and 223 of the second door 200, and the towing wire 510 is assembled to the connection plate mounting holes 520 and 530.

In this state, the doors 100, 200, and 300 are assembled to the door frame, and the guide rollers of the doors 100, 200, and 300 are inserted into the upper guide part 441 of the upper door frame 440. do.

In this state, the first-second connection plate 123 and the third-first connection plate 313 are mounted to the first and third connection plate mounting holes 520 and 530. This mounting process is sufficient that the mounting portions of the connecting plate mounting holes 520 and 530 are inserted into the openings 123a and 313a of the respective connecting plates 123 and 313.

At this time, since each opening has a funnel shape, it is very easy to insert and mount the mounting portion.

By this process, the installation of the triple door is completed very simply.

In addition, the mounting force is applied to the upper door frame 440 of the pulling means applying means 600 and the buffer means 700 before or after mounting the door.

Then, the process of disassembling the triple door is to release the 1-2-2,3-1 connecting plate (123, 313) from the connecting plate mounting hole and then doors (400, 200, 300) of the respective doors (400) ) Is sufficient. As described above, the triple door is not only assembled by a very simple structure, but also easy to install and disassemble the triple door.

The operation of this embodiment will be described.

When the first door 100 is first opened, the second door 200 is also moved in the direction of opening in conjunction with the first door 100. At this time, the piston 720 together with the second door 200 moves to the cylinder 710. However, when the piston 720 protrudes up to the longest stroke, the piston 720 and the second door 200 are separated from each other so that the piston 720 maintains its position and only the second door 200 is opened.

Then, when the first door 100 is automatically closed by the pulling force applying means 600, the second door 200 also moves in the direction of closing together with the first door 100, wherein the second door ( When the insertion housing 250 provided at the upper portion of the 200 meets the front end of the piston 720, the second door 200 moves in until the first door 100 is completely closed while attracting the piston 720.

After the first door 100 is opened again, the second door 200 is opened together to draw out the piston 720 again.

At this time, the front end of the insertion housing 250 and the piston 720 provided on the upper portion of the second door 200 is maintained by the magnetic coupling by the magnetic body 260.

In this process, the present embodiment can ensure a secure coupling state of the tip of the insertion housing 250 and the piston 720 for the following reasons.

In this embodiment, since the insertion housing 250 is installed in the coil spring 240 with respect to the fixing member 230, the insertion housing 250 may be shaken up and down to some extent when the insertion housing 250 receives an external force. .

In addition, the range in which the insertion housing 250 can be shaken is limited by the guide housing 280.

In addition, the coil spring 240 supporting the insertion housing 250 is elastically supported so that the insertion housing 250 is always located in the horizontal direction because the coil spring 240 is formed in a symmetrical conical coil spring.

Of course, in some embodiments, the coil spring 240 may be used as a conical coil spring, but in this case, it is problematic to fix the conical coil spring to the first bolt 231.

In this state, when the tip of the funnel-shaped piston 720 is inserted into the funnel-shaped insert 251 of the insertion housing 250, even if the piston 720 does not have a complete straightness in the horizontal direction The housing 250 is tilted downward slightly to receive the front end of the piston 720, and then the piston 720 is inserted to insert the housing 250 in a posture to maintain a complete horizontal state by the single coil spring 240. Is restored.

Therefore, despite the attitude of the piston 720 immediately before insertion, the piston 720 and the insertion housing 250 in the inserted state are coupled in a completely horizontal state.

Therefore, the magnetic body 260 provided at the end of the piston 720 and the insertion housing 250 can achieve a more complete magnetic coupling.

As a result, there is no risk of the piston 720 coming off the insertion housing 250 in an unintended manner.

On the other hand, if the magnetic body 260 and the piston 720 are in direct contact with each other will generate a sharp metallic noise at the moment of contact with each other.

In this embodiment, even more perfect magnetic force coupling is achieved as described above, even when the end portion of the piston 720 and the magnetic body 260 do not directly contact each other, the end portion of the piston 720 and the magnetic body 260 may exhibit sufficient magnetic coupling force. It was made.

That is, the portion having the smallest diameter of the funnel shape of the insertion portion 251 has a diameter smaller than the end of the piston 720.

Therefore, the end of the piston 720 is not in direct contact with the magnetic material 260.

Such a structure prevents the metallic noise generated at the moment of magnetic coupling with the piston and the magnetic body in the related art, and in this embodiment, the piston 720 of the metallic material and the insertion housing 250 of the rubber material collide. Only weak sounds will occur.

However, even when the magnetic body 260 and the piston 720 are not in direct contact with each other, since the magnetic body 260 and the piston 720 have sufficient coupling force, the second door 200 opens while pulling the piston 720. In this case, the insertion housing 250 of the second door 200 is not separated from the piston 720.

Therefore, the piston 720 of the present embodiment always pops up to the longest stroke when the second door 200 is opened, and restores to its original position while providing sufficient buffering force when the second door 200 is closed, thus making the door sudden. It can solve the shock and noise problems caused by the closing.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: first door
110: 1-1 fixing plate 111: 1-1 roller support portion
112: 1-1st guide roller
120: 1-2 fixing plate 121: 1-2 roller support portion
122: 1-1st guide roller
123: 1-2 connecting plate 123a: 1-2 openings
200: second door
210: 2-1 fixing plate 211: 2-1 pulley branch
212: 2-1 guide roller 213: 2-1 pulley
220: 2-2 fixed plate 221: 2-2 roller support portion
222: 2-1 guide roller 223: 2-1 pulley
230: fixing member 231: first bolt
231a: first screw thread 240: single coil spring
250: insertion housing 251: insertion unit
252: outer peripheral surface 260: magnetic material
270: second bolt
280: guide housing 281: cylindrical inner peripheral surface
300: third door 310: 3-1 fixed plate
311: 3-1 roller support unit 312: 3-1 guide roller
313: 3-1 connecting plate 313a: 3-1 opening
320: 3-2 fixing plate 321: 3-2 roller support portion 321
322: 3-2 guide roller
400: door frame 420: side door frame
430: side door frame 440: upper door frame
441: upper guide portion
510: towing wire 520: the first connection plate mounting hole
521: first mounting portion 522: first departure preventing portion
523: through the first wire 524: first fixture
530: third connector mounting hole
600: pulling force applying means 601: wire
700: shock absorber 710 cylinder
720: Piston

Claims (3)

A lower door frame having three rows of lower guide parts formed thereon, a pair of side door frames respectively provided on both sides of the lower door frame, and an upper door frame formed across the upper portion of the pair of side door frames and having three rows of upper guide parts formed therein; A grid-shaped door frame; A first door, a second door, and a third door, the lower roller being guided in movement along the upper guide part and the lower guide part, the lower roller being rotated along the lower guide part and disposed in parallel with each other; In the comprising, wherein the second door is a triple sliding door assembly disposed between the first door and the third door:
A first-first fixing plate provided on an upper side of the first door;
A first-second fixing plate provided on the other side of the upper part of the first door and provided with a first-second connection plate having a first-two opening portion opened toward the second door;
A 2-1 fixing plate provided on an upper side of the second door;
A second-2 fixing plate provided on the other side of the upper part of the second door;
A 3-1 fixing plate provided on an upper side of the third door and having a 3-1 connecting plate formed therein with a 3-1 opening portion opened toward the second door;
A third-2 fixing plate provided on the other side of the upper part of the third door;
A first-first roller support part having a lower part fixed to the first-first fixing plate and rotatably mounted with a first-first guide roller guided along the lower guide part;
A 1-2 roller support portion having a lower portion fixed to the 1-2 fixing plate and rotatably mounted with a 1-2 guide roller guided along the lower guide portion at an upper portion thereof;
2-1, the lower part of which is fixed to the second fixing plate, and the second-first guide roller which is guided along the lower guide part is rotatably mounted on the upper part, and the second-first pulley is rotatably mounted on the middle part. Unwinding branch;
A second-2 guide roller having a lower portion fixed to the second-2 fixing plate and rotatably mounted to a second guide roller guided along the lower guide portion, and a second pulley rotatably mounted at an intermediate portion thereof; Unpacking branch;
A 3-1 roller support part having a lower part fixed to the 3-1 fixing plate and rotatably mounted with a 3-1 guide roller guided along the lower guide part on an upper part thereof;
A 3-2 roller support part having a lower part fixed to the 3-2 fixing plate and rotatably mounted with a 3-2 guide roller guided along the lower guide part on the upper part;
A traction wire mounted on the 2-1 pulley and the 2-2 pulley to form a closed loop;
The first mounting part formed in the center and inserted into and mounted to the 1-2 openings of the 1-2 connecting plate and extending to both sides of the first mounting part, and having a larger diameter than the first mounting part. And a first wire passage through which the tow wire penetrates along a center of the first release preventing part and the first mounting part, and a first connection plate mounted to be fixed to the tow wire on the first door side. Sphere;
A third mounting part formed at the center and extending to both sides of the third mounting part inserted into and mounted to the third opening of the third connecting part, and having a diameter larger than that of the third mounting part; And a third wire through path through which the tow wire penetrates along a center of the third detachment preventing part and the third mounting part, and a third connecting plate mounted to be fixed to the tow wire on the third door side. Sphere;
A pulling force applying means provided at a lower portion of the upper door frame to apply a pulling force to the first door to close the first door;
And a piston provided below the upper door frame and a piston protruding from the cylinder to provide a cushioning force to the second door when the second door is closed, the cylinder being positioned on an extended surface of the second door. Buffer means;
Semi-automatic and interlocking triple sliding door assembly comprising a.
The method of claim 1,
A fixing member provided on the second-2 fixing plate;
A coil spring disposed in a horizontal direction and having one end fixed to the fixing member and the other end facing the end of the piston;
An insertion housing having a funnel shape so that an end of the piston can be inserted at one side thereof, and an insertion housing made of a rubber material having the other side fixed to the other end of the coil spring;
A magnetic body provided in the insertion housing to be magnetically coupled to the end of the piston;
Semi-automatic and interlocking triple sliding door assembly, characterized in that further comprises.
The method of claim 2,
The coil spring is a semi-automatic and interlocking three sliding door assembly, characterized in that the coil spring having a convex shape in the longitudinal center thereof.

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