KR102579553B1 - multiple sliding door - Google Patents

Abstract

The multi-sliding door according to the present invention includes an outer frame 10 on which a rail is formed; a first door 100 that is slidably movable along a first rail disposed inside the outer frame 10 and is disposed at the front or rear; a third door 300 that is slidably movable along a third rail disposed inside the outer frame 10 and is disposed at the rear or front bar; a second door 200 disposed to slide left and right along the outer frame 10 and disposed between the first door 100 and the third door 300; An interlocking assembly ( 400); includes.
The present invention can eliminate the height difference between the first door and the second door that is unintentionally generated when moving because the second door disposed in the middle can be moved relative to the first door in the vertical direction, and the Since the second door can be moved relative to the third door in the vertical direction, there is an advantage in that the height difference between the second door and the third door that unintentionally occurs during movement can be resolved.

Description

multiple sliding door

The present invention relates to multiple sliding doors.

Doors are being developed in various shapes, and in particular, doors that open and close in a multi-stage slide manner are being developed to achieve optimal efficiency in narrow spaces.

This type of multi-stage sliding door is constructed in an interlocking manner, and technology is being developed in a direction that can control the opening and closing of the door with less force.

Recently, multiple sliding doors with three doors are being widely used to maximize the width of the entrance with limited width.

Registered Patent Publication No. 10-1542798 describes an interlocking door transfer device.

The prior art relates to an interlocked hanger door transfer device. The interlocked hanger door transfer device includes a fixed frame bent at right angles on both sides and fixed to the upper part of the hanger door, and the bent two sides of the fixed frame. A pair of wing plates that are inserted into and move on a first rail formed at the end, a pair of fixed rollers fixed to the bottom surface of the support plate to face each other, and a pair of fixed rollers that move along a second rail formed on the bottom surface of the support plate. and a pair of moving rollers that are connected to and move with the pair of wing plates, are in contact with and connected to the outer peripheral surfaces of the pair of moving rollers and the pair of fixed rollers, and are located on one side of the fixed frame. It includes a pair of belts that allow the second wing plate and the second moving roller located on the other side of the fixed frame to move in opposite directions when the first wing plate and the first moving roller move.

Additionally, Registered Patent Publication No. 10-1784718 describes an interlocking door transfer device using an insertable pulley.

The prior art relates to an interlocking door transfer device using an insertable pulley. The interlocking door transfer device using an insertable pulley according to an embodiment of the present invention has rails formed on both sides in the longitudinal direction, and 'ㄷ' at both ends. A frame in which a receiving groove is formed in the shape of a ruler, a pair of wing plates moving along the rail of the frame, a pair of pulleys coupled to the receiving grooves at both ends of the frame, and the pair of pulleys It includes a belt portion that is wound along and connected to the pair of wing plates. Accordingly, the position of the pulley can be adjusted by detaching the pulley from the frame.

The interlocking door according to the prior art is one in which two adjacent doors are joined, but when an external shock is applied, there is a problem in that the joined doors are damaged because the joined parts cannot cushion the shock or torsion.

Republic of Korea Patent Publication No. 10-2006-0045887 Japanese Patent Laid-Open No. 8-357859 Republic of Korea Patent Publication No. 10-1784718 Republic of Korea Patent Publication No. 10-1542798

The present invention was developed to solve the above-described conventional problems, and its purpose is to provide a multi-sliding door that can eliminate relative movement due to relative movement in the vertical direction.

The present invention includes an outer frame (10) on which rails are formed; a first door 100 that is slidably movable along a first rail disposed inside the outer frame 10 and is disposed at the front or rear; a third door 300 that is slidably movable along a third rail disposed inside the outer frame 10 and is disposed at the rear or front bar; a second door 200 disposed to slide left and right along the outer frame 10 and disposed between the first door 100 and the third door 300; An interlocking assembly ( 400); provides a multiple sliding door including.

The interlocking assembly 400 includes a main frame 450 disposed at the bottom of the second door 200; A first subframe 410 disposed at the bottom of the first door; a second subframe 420 disposed at the bottom of the third door; A first pulley 460 disposed on one side of the main frame 450; a second pulley 470 disposed on the other side of the main frame 450; A belt 480 arranged to surround the first pulley 460 and the second pulley 470; A first assembly member 510 coupled to the belt 480 and assembled with the first subframe 410; A second assembly member 520 is coupled to the belt 480 and assembled with the second subframe 420, and the first assembly member 510 is coupled to the first subframe 410. The second assembly member 520 may be moved relative to the second subframe 420 in the vertical direction.

The interlocking assembly 400 includes a first fixing bracket 560 that rotatably fixes the first pulley 460 to the main frame 450; It may further include a second fixing bracket 570 that rotatably fixes the second pulley 470 to the main frame 450.

The interlocking assembly 400 is assembled to the first subframe 410, forms a mutual lock with the first assembly member 510 in the front and rear direction, and is assembled to be relatively movable in the up and down direction. socket 610; It may further include a second socket 620 that is assembled to the second subframe 420, forms a mutual lock with the second assembly member 520 in the front-back direction, and is assembled to be relatively movable in the up and down direction. You can.

The first assembly member 510 includes a first assembly body 512 disposed behind the first fixing bracket 560 and coupled to the belt 480, and It includes a first assembly disk 514 that is coupled and arranged to be movable relative to the first socket 610 in the up and down direction, wherein the first socket 610 is arranged in the up and down direction and spaced apart left and right. A 1-1 socket body 611 and a 1-2 socket body 612 forming a first socket gap 613, and the 1-1 socket body 611 and the 1-2 socket body ( 612) includes a first socket fixer 615 that is fixed, and the first assembly disk 514 has a first disk groove 514a formed concave inward from the outer peripheral surface, and the 1-1 socket body ( 611), a 1-1 protrusion 611a is formed that protrudes in the direction of the 1-2 socket body 612, and extends from the 1-2 socket body 612 in the direction of the 1-1 socket body 611. A 1-2 protrusion 612a protruding is formed, and the 1-1 protrusion 611a and the 1-2 protrusion 612a are inserted into the first disc groove 514a to form the first assembled disc. (514) and can form mutual interference in the front and rear directions.

First, in the present invention, since the second door disposed in the middle can be moved relative to the first door in the vertical direction, the height difference between the first door and the second door that unintentionally occurs during movement can be resolved, Since the second door can be moved relative to the third door in the vertical direction, there is an advantage in that the height difference between the second door and the third door that occurs unintentionally during movement can be resolved.

Second, the present invention provides that when the first door and the second door are slidably moved, even if a foreign substance is placed on the rail and either the first door or the second door is moved upward, the first assembly disk and the first socket In this assembled state, the first assembly disk and the first socket are moved relative to each other, thereby eliminating vertical displacement.

Third, in the present invention, even if the first door and the second door are relatively rotated at a predetermined angle, since the first assembly disk is in the shape of a disk, the displacement due to the relative angle can be resolved by tilting at a predetermined angle around the first assembly disk. There is an advantage.

Fourth, the present invention provides that when the second door and the third door are slidably moved, even if a foreign substance is placed on the rail and either the second door or the third door is moved upward, the second assembly disk and the second socket In this assembled state, the second assembly disk and the second socket are moved relative to each other, thereby eliminating vertical displacement.

Fifth, in the present invention, even if the second door and the third door are relatively rotated at a predetermined angle, since the second assembly disk is in the shape of a disk, it is tilted at a predetermined angle around the second assembly disk to eliminate displacement due to the relative angle. There are advantages to this.

Sixth, the door of the present invention has the advantage of being easy to attach and detach.

1 is a front view of a multi-sliding door according to a first embodiment of the present invention.
FIG. 2 is an exemplary diagram illustrating a process of opening the multi-sliding door of FIG. 1.
FIG. 3 is an exemplary diagram showing the multi-sliding door of FIG. 1 in an open state.
FIG. 4 is a plan view of the interlocking assembly of the multiple sliding doors shown in FIG. 1.
FIG. 5 is a plan view of the interlocking assembly of the multiple sliding doors shown in FIG. 2.
FIG. 6 is a plan view of the interlocking assembly of the multiple sliding doors shown in FIG. 3.
Figure 7 is a perspective view of an interlocking assembly according to the first embodiment of the present invention.
Figure 8 is a lower perspective view of Figure 7.
Figure 9 is a perspective view of the interlocking assembly in Figure 7 with the cover disassembled.
Figure 10 is a plan view of Figure 9.
Figure 11 is a plan view with the fixing bracket in Figure 9 removed.
FIG. 12 is a diagram showing the assembled state of the first pulley shown in FIG. 11.
FIG. 13 is a diagram showing the assembled state of the second pulley shown in FIG. 11.
Figure 14 is a perspective view of the interlocking assembly shown in Figure 11.
Figure 15 is an enlarged view of A in Figure 14.
Figure 16 is an enlarged view of C in Figure 14.
Figure 17 is a perspective view of the other side of the interlocking assembly shown in Figure 11.
Figure 18 is an enlarged view of B in Figure 17.
Figure 19 is an enlarged view of D in Figure 17.
Figure 20 is a diagram illustrating an operation of a multi-sliding door according to the first embodiment of the present invention.
Figure 21 is a second example of operation of a multi-sliding door according to the first embodiment of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the present specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

Figure 1 is a front view of a multiple sliding door according to a first embodiment of the present invention, Figure 2 is an exemplary diagram showing a process of opening the multiple sliding door of Figure 1, and Figure 3 is an open state of the multiple sliding door of Figure 1. is an example diagram, FIG. 4 is a plan cross-sectional view of the multiple sliding door shown in FIG. 1, FIG. 5 is a plan cross-sectional view of the multiple sliding door shown in FIG. 2, and FIG. 6 is a multi-sliding door shown in FIG. 3. This is a flat cross-sectional view of .

The multi-sliding door according to this embodiment is arranged to be able to slide along an outer frame 10 on which a rail is formed and a first rail (not shown) disposed inside the outer frame 10, and is arranged at the front or rear. A first door 100, a third door 300 arranged to be slideable along a third rail (not shown) disposed inside the outer frame 10, and disposed at the rear or front bar, and A second door 200 is disposed to slide left and right along the outer frame 10 and is disposed between the first door 100 and the third door 300, and a second door 200 on the second door 200. It is arranged and assembled with the first door 100 and the third door 300, respectively, and includes an interlocking assembly 400 that is interlocked to implement slide movement when any one door slides.

The outer frame 10 includes a first side frame 11 disposed on the left, a second side frame 12 disposed on the right and opposite to the first side frame 11, and the first side frame 12. An upper frame 13 connecting the upper ends of the side frame 11 and the second side frame 12, and a lower frame 14 connecting the lower ends of the first side frame 11 and the second side frame 12. ) includes.

A first rail, a second rail, and a third rail are formed on the lower frame 14, respectively.

In this embodiment, the first door 100 is placed at the rear, the third door 300 is placed at the front, and the second door 200 is placed in the middle.

It is preferable that either the first door 100 or the third door 300 is fixed to the outer frame 10, and in this embodiment, the first door 100 disposed on the right is attached to the outer frame 10. ) is optionally fixed to.

Therefore, when the first door 100, second door 200, and third door 300 overlap, an entrance space 15 through which people can pass is formed on the left side. Unlike the present embodiment, the third door 300 may be selectively fixed and an entrance space may be formed on the right side.

Figure 7 is a perspective view of the interlocking assembly according to the first embodiment of the present invention, Figure 8 is a lower perspective view of Figure 7, Figure 9 is a perspective view of the interlocking assembly with the cover in Figure 7 disassembled, and Figure 10 is a perspective view of the interlocking assembly of Figure 9. It is a top view, FIG. 11 is a top view with the fixing bracket removed in FIG. 9, FIG. 12 is a diagram of the assembled state of the first pulley shown in FIG. 11, and FIG. 13 is a diagram of the assembled state of the second pulley shown in FIG. 11. 14 is a perspective view of the interlocking assembly shown in FIG. 11, FIG. 15 is an enlarged view of A in FIG. 14, FIG. 16 is an enlarged view of C in FIG. 14, and FIG. 17 is an enlarged view of the interlocking assembly shown in FIG. 11. It is a perspective view of the other side, Figure 18 is an enlarged view of B in Figure 17, and Figure 19 is an enlarged view of D in Figure 17.

The interlocking assembly 400 includes a main frame 450 disposed at the bottom of the second door 200, a first subframe 410 disposed at the bottom of the first door, and the third door. A second subframe 420 disposed at the bottom, a first pulley 460 disposed on one side of the main frame 450, and a second pulley 470 disposed on the other side of the main frame 450. , a belt 480 arranged to surround the first pulley 460 and the second pulley 470, and a first assembly member coupled to the belt 480 and assembled with the first subframe 410 ( 510) and a second assembly member 520 coupled to the belt 480 and assembled with the second subframe 420.

In this embodiment, the interlocking assembly 400 includes a first fixing bracket 560 that rotatably fixes the first pulley 460 to the main frame 450, and the second pulley 470. It further includes a second fixing bracket 570 rotatably fixed to the main frame 450.

In addition, in this embodiment, the interlocking assembly 400 includes a first socket 610 assembled to the first subframe 410 and movable relative to the first assembly member 510 in the vertical direction. , It is assembled to the second subframe 420 and further includes a second socket 620 that is assembled to be relatively movable in the vertical direction with the second assembly member 520.

In this embodiment, the main frame 450 forms the lower frame of the second door 200, the first subframe 410 forms the lower frame of the first door 100, and the first subframe 410 forms the lower frame of the second door 200. 2 The server frame 420 forms the lower frame of the third door 300.

Unlike the present embodiment, the main frame 450 is assembled to the lower part of the second door 200, the first subframe 410 is assembled to the lower part of the first door 100, and the second The server frame 420 may be assembled to the lower part of the third door 300.

The first subframe 410 includes a first sub-upper 412 extending longitudinally, and a first sub-front 414 bent downward and extending from the front edge of the first sub-upper 412. ) and a first sub rear 416 bent downward and extending from the rear edge of the first sub upper 412, the first sub upper 412, the first sub front 414 and the first sub rear 416. The 1-1 sub cap 417 coupled to the left side of the suppressor 416, and the first sub upper 412, first sub front 414, and right side of the first suppressor 416. It includes the 1-2 subcap 418.

A first sub-groove 415 into which the first rail is inserted is formed between the first sub-upper 412, the first sub-front 414, and the first sub-rear 416. The first sub-groove 415 is formed in a “∩” shape.

The first sub-upper 412, first sub-front 414, and first sub-rear 416

The 1-1 subcap 417 and the 1-2 subcap 418 are arranged to face each other.

In this embodiment, the 1-1 subcap 417 is coupled to the left end of the first subframe 410, and the 1-2 subcap 418 is coupled to the right side of the first subframe 410. It is connected to the end.

The second subframe 420 includes a second sub-upper 422 extending longitudinally, and a second sub-front 424 bent downward and extending from the front edge of the second sub-upper 422. ) and a second sub rear 426 bent downward and extending from the rear edge of the second sub upper 422, the second sub upper 422, the second sub front 424 and the second The 2-1 sub cap 427 is coupled to the left side of the suppressor 426, and the second sub upper 422, second sub front 424, and right side of the second suppressor 426 are coupled to the second sub cap 427. It includes the 2-2 subcap 428.

A second sub-groove 425 into which a third rail is inserted is formed between the second sub-upper 422, the second sub-front 424, and the second sub-rear 426. The second sub-groove 425 is formed in a “∩” shape.

The 2-1 subcap 427 and the 2-2 subcap 428 are arranged to face each other.

In this embodiment, the 2-1 subcap 427 is coupled to the left end of the second subframe 420, and the 2-2 subcap 428 is coupled to the right side of the second subframe 420. It is connected to the end.

The main frame 450 includes a main upper 452 that extends long in the longitudinal direction, a main lower 453 that extends long in the longitudinal direction and is disposed on the lower side opposite to the main upper 452, and the main lower part 453. A first main cap 457 coupled to the left side of the upper 452 and the main lower 453, and a second main cap 458 coupled to the right side of the main upper 452 and the main lower 453. Includes.

The front ends of the main upper 452 and the main lower 453 are spaced apart in the vertical direction.

The rear ends of the main upper 452 and the main lower 453 are spaced apart in the vertical direction.

The first pulley 460, second pulley 470, belt 480, first assembly member 510, and second assembly member 520 are between the main upper 452 and the main lower 453. It is placed.

The main upper 452 covers the upper sides of the first pulley 460, the second pulley 470, the belt 480, the first assembly member 510, and the second assembly member 520, and The main lower 453 covers the lower sides of the first pulley 460, the second pulley 470, the belt 480, the first assembly member 510, and the second assembly member 520.

The first fixing bracket 560 is mounted on the upper side of the first pulley 460 and is assembled to the main lower 453.

The second fixing bracket 570 is mounted on the upper side of the second pulley 470 and is assembled to the main lower 453.

The first pulley 460 and the second pulley 470 have a circular disk shape.

In this embodiment, the first pulley 460 is placed on the left, and the second pulley 470 is placed on the right.

The first pulley 460 is arranged to be inserted into the first fixing bracket 560 in the horizontal direction, and the second pulley 470 is arranged to be inserted into the second fixing bracket 570 in the horizontal direction.

A first shaft 465, which provides the rotation center of the first pulley 460, is disposed on the first fixing bracket 560 in the vertical direction and penetrates the first pulley 460 in the vertical direction.

The second axis 475, which provides the rotation center of the second pulley 470, is disposed on the second fixing bracket 570 in the vertical direction and penetrates the second pulley 470 in the vertical direction.

The belt 480 includes a first belt portion 482 disposed behind the first pulley 460 and the second pulley 470, and in front of the first pulley 460 and the second pulley 470. It includes a second belt portion 484 disposed in.

The first assembly member 510 is fixed to the first belt portion 482, and the second assembly member 520 is fixed to the second belt portion 484.

In this embodiment, the belt 480 is manufactured in two parts.

Specifically, the first belt portion 482 has one end coupled to the first assembly member 510, the other end coupled to the second assembly member 520, and the other end connected to the second pulley 470. placed to surround it.

The second belt portion 484 has one end coupled to the second assembly member 520 and the other end coupled to the first assembly member 510, and the other end is disposed to surround the first pulley 460. .

When the belt 480 rotates, the first assembly member 510 moves left and right at the rear of the pulleys, and the second assembly member 620 moves left and right at the front of the pulleys.

The first fixing bracket 560 has a first fixing body 562 whose lower end is fitted with the main lower 453, and is formed to penetrate the first fixing body 562 in the horizontal direction, and the first fixing bracket 560 has a lower end fitted with the main lower 453. 1 A first pulley hole 564 into which the pulley 460 is inserted in the horizontal direction, and a first shaft hole formed to penetrate the first fixing body 562 in the vertical direction and pass through the first pulley hole 564. (566), a 1-1 lower fitting portion (567a) and a 1-2 lower fitting portion (567b) formed to protrude forward and rearward from the bottom of the first fixing body 562, respectively, and the first 1 A 1-1 upper fitting portion 568a and a 1-2 upper fitting portion 568b formed to protrude forward and rearward from the top of the fixing body 562, respectively, and the first fixing body 562 It penetrates in the vertical direction and includes a first fastening hole 563 through which the first fastening member 561 passes.

The first fastening member 561 penetrates the first fixing body 562 and is fastened to the main lower 453. The first fastening hole 563 is formed in the vertical direction.

The first shaft hole 566 is disposed to the left of the first fastening hole 563.

The first shaft 465 is inserted into the first shaft hole 566 and rotatably assembled with the first pulley 460.

When viewed from the side, the first pulley hole 564 is formed in a square shape.

The diameter of the first pulley 460 is formed to be larger than the width of the first pulley hole 564, and the front and rear ends of the first pulley 460 are disposed to protrude outside the first fixing bracket 560. do.

The other end of the second belt portion 484 is coupled to the first assembly member 510 through the first pulley hole 564.

The 1-1 lower fitting part 567a protrudes rearward, and the 1-2 lower fitting part 567b protrudes forward.

The main lower 453 has a 1-1 lower fitting groove 453a into which the 1-1 lower fitting part 567a is inserted, and a 1-1 lower fitting groove 453a into which the 1-2 lower fitting part 567b is inserted. 2 Includes lower fitting groove (453b).

The 1-1 lower fitting groove 453a extends long in the longitudinal direction of the main body 450, and the 1-1 lower fitting portion 567a is connected to the 1-1 lower fitting groove 453a. It is inserted and assembled horizontally.

When the 1-1 lower fitting portion 567a is inserted into the 1-1 lower fitting groove 453a, it forms a mutual lock in the vertical direction.

The first assembly member 510 is coupled to the main frame 450 and moves relative to the first socket 610 disposed on the first subframe 410 in the vertical direction.

The first assembly member 510 includes a first assembly body 512 disposed behind the first fixing bracket 560 and coupled to the belt 480, and It is coupled and arranged, and includes a first assembly disk 514 that is assembled to be relatively movable in the up and down directions with the first socket 610.

The first assembly body 512 is located above the main lower 453, and the first assembly disk 514 is located outside the rear of the main lower 453.

The first assembled body 512 includes a first assembled body housing 512a with a space formed therein, where one end of the first belt part 482 and the other end of the second belt part 484 are located, One end of the first belt part 482 and the other end of the second belt part 484 pass through, and one end of the first belt part 482 and the other end of the second belt part 484 are connected to the first belt part 484. It includes a first assembled body cover (512b) fixed to the assembled body housing (512a).

The belt 480 can be replaced or repaired by disassembling the first assembled body cover 512b.

The first assembled body cover 512b presses and fixes one end of the first belt portion 482 and the other end of the second belt portion 484 to the first assembled body housing 512a.

The first assembly disk 514 is disposed outside the first assembly body 512. In this embodiment, the first assembly disk 514 is formed in a disk shape and is arranged vertically.

The first assembly disk 514 has a first disk groove 514a formed concave inward from the outer peripheral surface.

The first assembly disk 514 may be moved in the vertical direction along the first socket 610.

The first socket 610 includes a 1-1 socket body 611 and a 1-2 socket body 612 arranged in the vertical direction and spaced left and right to form a first socket gap 613, and It includes a first socket fixer 615 to which the 1-1 socket body 611 and the 1-2 socket body 612 are fixed.

The first socket fixer 615 is coupled to and fixed to the first subframe 410. The 1-1 socket body 611 and the 1-2 socket body 612 are disposed between the first assembly body 510 and the first socket fixer 615.

The first socket fixer 615 is fixed to the first subfront 414.

A 1-1 protrusion 611a is formed protruding from the 1-1 socket body 611 toward the 1-2 socket body 612, and the first protrusion 611a is formed in the 1-2 socket body 612. -1 A 1-2 protrusion 612a is formed protruding in the direction of the socket body 611.

The 1-1 protrusion 611a and the 1-2 protrusion 612a are inserted into the first disk groove 514a and form mutual locking with the first assembly disk 514 in the front-back direction.

The first assembly disk 514 can be moved in the vertical direction along the 1-1 protrusion 611a and the 1-2 protrusion 612a.

Therefore, when a force in the left and right directions is applied to the first door 100, the first socket 610 and the first assembly member 510 are coupled to the belt by the force applied to the first door 100. It can be moved left and right with (480).

Meanwhile, when an external force in the vertical direction is applied to the first door 100 and the second door 200, the first assembly disk 514 and the first socket 610 may move relative to each other, thereby The power can be relieved.

In the prior art, since the first door and the second door are maintained in a coupled state, when an external force in the vertical direction is applied, it cannot be relieved and the assembled portion may be bent or damaged.

Specifically, when the first door and the second door are slidably moved, even if foreign matter is placed on the rail and either the first door or the second door is moved upward, the first assembly disk 514 and the first socket When 610 is assembled, the first assembly disk 514 and the first socket 610 are moved relative to each other, thereby eliminating vertical displacement.

In addition, even if the first door and the second door are relatively rotated at a predetermined angle, since the first assembly disk 514 has a disk shape, it is tilted at a predetermined angle around the first assembly disk 514 to maintain displacement according to the relative angle. There are features that can be resolved.

The second fixing bracket 570 is formed to be left and right symmetrical to the first fixing bracket 560.

The second fixing bracket 570 has a second fixing body 572 whose lower end is fitted with the main lower 453, and is formed to penetrate the second fixing body 572 in the horizontal direction, and the second fixing bracket 570 has a lower end fitted with the main lower 453. 2 A second pulley hole 574 into which the pulley 470 is inserted in the horizontal direction, and a second shaft hole formed to penetrate the second fixing body 572 in the vertical direction and pass through the second pulley hole 574. (576), and a 2-1 lower fitting portion (not shown) and a 2-2 lower fitting portion (not shown) formed to protrude forward and rearward from the bottom of the second fixing body 572, respectively, A 2-1 upper fitting part (not shown) and a 2-2 upper fitting part (not shown) formed to protrude forward and rearward from the top of the second fixing body 567, respectively, and the second fixing body It includes a second fastening hole 573 that passes through 572 in the vertical direction and through which the second fastening member 571 passes.

The second fastening member 571 penetrates the second fastening body 572 and is fastened to the main lower 453. The second fastening hole 573 is formed in the vertical direction.

The second shaft hole 576 is disposed to the right of the second fastening hole 573.

The second shaft 475 is inserted into the second shaft hole 576 and rotatably assembled with the second pulley 470.

When viewed from the side, the second pulley hole 574 is formed in a square shape.

The diameter of the second pulley 470 is formed to be larger than the width of the second pulley hole 574, and the front and rear ends of the second pulley 470 are disposed to protrude outside the second fixing bracket 570. do.

One end of the first belt portion 482 is coupled to the second assembly member 520 through the second pulley hole 574.

The 2-1 lower fitting part protrudes rearward, and the 2-2 lower fitting part protrudes forward.

The 2-1 lower fitting part is inserted into the 1-1 lower fitting groove (453a) of the main lower 453, and the 2-2 lower fitting part is inserted into the 1-2 lower fitting groove (453b). .

The 2-1 lower fitting portion is inserted into the 1-1 lower fitting groove (453a) to form mutual locking in the vertical direction, and the 2-2 lower fitting portion is inserted into the 1-2 lower fitting groove (453b). They are inserted to form a mutual lock in the up and down directions.

The second assembly member 520 is coupled to the main frame 450 and may be moved relative to the second socket 620 disposed on the second subframe 420 in the vertical direction.

In this embodiment, the first assembly member 510 is disposed on the rear left side, and the second assembly member 510 is disposed on the front right side.

The second assembly member 520 includes a second assembly body 522 disposed in front of the second fixing bracket 570 and coupled to the belt 480, and It is coupled and arranged, and includes a second assembly disk 524 that is assembled to be relatively movable in the vertical direction with the second socket 620.

The second assembly body 522 is located above the main lower 453, and the second assembly disk 524 is located outside the front of the main lower 453.

The second assembled body 522 includes a second assembled body housing 522a with a space formed therein and where the other end of the second belt part 484 and one end of the first belt part 482 are located, The other end of the second belt part 484 and one end of the first belt part 482 pass through, and the other end of the second belt part 484 and one end of the first belt part 482 are connected to the second belt part 482. It includes a second assembled body cover (522b) fixed to the assembled body housing (522a).

The belt 480 can be replaced or repaired by disassembling the second assembled body cover 522b.

The second assembled body cover 522b presses and secures the other end of the second belt portion 484 and one end of the first belt portion 482 to the second assembled body housing 522a.

The second assembly disk 524 is disposed ahead and outside the second assembly body 522. In this embodiment, the second assembly disk 524 is formed in a disk shape and is arranged vertically.

The second assembly disk 524 has a second disk groove 524a formed concave inward from the outer peripheral surface.

The second assembly disk 524 may be moved in the vertical direction along the second socket 620.

The second socket 620 includes a 2-1 socket body 621 and a 2-2 socket body 622 arranged in the vertical direction and spaced left and right to form a second socket gap 623, and It includes a second socket fixer 625 to which the 2-1 socket body 621 and the 2-2 socket body 622 are fixed.

The second socket fixer 625 is coupled to and fixed to the second subframe 420. The 2-1 socket body 621 and the 2-2 socket body 622 are disposed between the second assembly body 520 and the second socket fixer 625.

The second socket fixer 625 is fixed to the second sub rear 426.

A 2-1 protrusion 621a is formed protruding from the 2-1 socket body 621 toward the 2-2 socket body 622, and the second protrusion 621a is formed in the 2-2 socket body 622. -1 A 2-2 protrusion 622a is formed protruding in the direction of the socket body 621.

The 2-1 protrusion 621a and the 2-2 protrusion 622a are inserted into the second disk groove 524a and engage with the second assembly disk 524 in the front-back direction.

The second assembly disk 524 can be moved in the vertical direction along the 2-1 protrusion 621a and the 2-2 protrusion 622a.

Therefore, when a force in the left and right directions is applied to the third door 300, the second socket 620 and the second assembly member 520 are coupled to the belt by the force applied to the third door 300. It can be moved left and right with (480).

Meanwhile, when an external force in the vertical direction is applied to the third door 300 and the second door 200, the second assembly disk 524 and the second socket 620 may be relatively moved in the vertical direction, through which The force caused by external force can be relieved.

In the prior art, since the first door and the second door are maintained in a coupled state, when an external force in the vertical direction is applied, it cannot be relieved and the assembled portion may be bent or damaged.

Specifically, when the second door and the third door are slid and moved, even if foreign matter is placed on the rail and either the second door or the third door is moved upward, the second assembly disk 524 and the second socket When 620 is assembled, the second assembly disk 524 and the second socket 620 are moved relative to each other, thereby eliminating vertical displacement.

In addition, even if the second door and the third door are relatively rotated at a predetermined angle, since the second assembly disk 524 has a disk shape, it is tilted at a predetermined angle around the second assembly disk 524 to maintain displacement according to the relative angle. There are features that can be resolved.

Meanwhile, a middle fixing bracket 580 disposed and fixed in the middle of the left and right sides of the main lower 453 may be further disposed.

Since the middle fixing bracket 580 has the same shape as the first fixing bracket 560, detailed description is omitted.

In the detailed description of the present invention, specific embodiments have been described, but of course, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the patent claims described later, but also by the scope of this patent claim and equivalents.

100: 1st door 200: 2nd door
300: Third door 400: Interlocking assembly
410: first subframe 420: second subframe
450: main frame 510: first assembly member
520: second assembly member 560: first fixing bracket
570: second fixing bracket 610: first socket
620: second socket

Claims (5)

Outer frame (10) with rails formed;
a first door 100 that is slidably movable along a first rail disposed inside the outer frame 10 and is disposed at the front or rear;
a third door 300 that is slidably movable along a third rail disposed inside the outer frame 10 and is disposed at the rear or front bar;
a second door 200 disposed to slide left and right along the outer frame 10 and disposed between the first door 100 and the third door 300;
An interlocking assembly ( 400); including,
The interlocking assembly 400 is,
A main frame 450 disposed at the bottom of the second door 200; A first subframe 410 disposed at the bottom of the first door; a second subframe 420 disposed at the bottom of the third door; A first pulley 460 disposed on one side of the main frame 450; a second pulley 470 disposed on the other side of the main frame 450; A belt 480 arranged to surround the first pulley 460 and the second pulley 470; A first assembly member 510 coupled to the belt 480 and assembled with the first subframe 410; It includes a second assembly member 520 coupled to the belt 480 and assembled with the second subframe 420,
The first assembly member 510 is moved relative to the first subframe 410 in the vertical direction, and the second assembly member 520 is moved relative to the second subframe 420 in the vertical direction. become,
The interlocking assembly 400 is,
a first fixing bracket 560 rotatably fixing the first pulley 460 to the main frame 450; It further includes a second fixing bracket 570 that rotatably fixes the second pulley 470 to the main frame 450,
The interlocking assembly 400 is,
A first socket (610) assembled to the first subframe (410), forming a mutual lock with the first assembly member (510) in the front-back direction, and relatively movable in the up-and-down direction; It is assembled to the second subframe 420, forms a mutual lock with the second assembly member 520 in the front-back direction, and further includes a second socket 620 that is assembled to be relatively movable in the up and down direction. ,
The first assembly member 510 is,
A first assembly body 512 is disposed behind the first fixing bracket 560 and coupled to the belt 480, and is coupled to the first assembly body 512, and the first socket ( 610) and a first assembly disk 514 that is assembled to be relatively movable in the up and down directions,
The first socket 610 includes a 1-1 socket body 611 and a 1-2 socket body 612 arranged in the vertical direction and spaced left and right to form a first socket gap 613, and It includes a first socket fixer 615 to which the 1-1 socket body 611 and the 1-2 socket body 612 are fixed,
The first assembly disk 514 has a first disk groove 514a formed concave inward from the outer peripheral surface,
A 1-1 protrusion 611a is formed protruding from the 1-1 socket body 611 toward the 1-2 socket body 612, and the first protrusion 611a is formed in the 1-2 socket body 612. -1 A 1-2 protrusion 612a is formed protruding in the direction of the socket body 611,
A multi-sliding door in which the 1-1 protrusion 611a and the 1-2 protrusion 612a are inserted into the first disk groove 514a to form mutual locking with the first assembly disk 514 in the front-back direction. . delete delete delete delete

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