KR101573443B1 - Slim type Opening and closing apparatus of sliding door bathroom cabinet - Google Patents

Abstract

The present invention relates to a slim opening and closing apparatus for a sliding door of a bathroom cabinet which is slim and lightweight, has a simple and small structure to reduce costs, and has an elegant appearance. The slim opening and closing apparatus for a sliding door of a bathroom cabinet comprises: an upper frame (110) of a main body (100) comprising an installation space (111), a cover assembly plate (112), and an upper rail (113); a lower frame (120) arranged on a lower portion of the main body (100) and provided with a lower rail (121, 122); an inner and an outer door (200, 300) arranged on a front surface of the main body (100) to be moved to a left and a right and provided with an upper door frame (210, 310) and a lower door frame (220, 320); an upper inner bracket (400) comprising a door rail (410) assembled on an upper surface of the upper door frame (210) in a longitudinal direction to protrude frontwards and a roller on both sides (420) to move along the upper rail (113); an upper outer bracket on both sides (500, 600) assembled on both sides of an upper surface of the upper door frame (310) and provided with a roller (51, 610) to move along the door rail (410) and the upper rail (113); a lower inner bracket (700) and a lower outer bracket (800) assembled on both sides of a lower surface of the lower door frame (220, 320) and provided with a roller (710, 810) to move along the lower rail (121, 122); and a decoration cover (900) separably assembled on the cover assembly plate (112) to block the installation space (111).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sliding door type door opening /

The present invention relates to a slim-type sliding door type door opening and closing apparatus for a bathroom cabinet, and more particularly, to a sliding door type door opening / closing apparatus for a bathroom cabinet which can reduce the size and weight of the door opening / closing apparatus The present invention relates to a slim-type sliding door type door opening / closing device of a bathroom storage cabin, which can prevent external exposure of the door opening /

Generally, a cabinet installed inside a bathroom is constructed so that a flat frame is cut to a predetermined size and a partition is provided in an inner space to accommodate a toilet bowl, a towel, a toilet paper, and the like.

The door of the bathroom cabinet is provided with various openings to cover the inside of the front part, and the door installed in the cabinet is divided into a sliding door type and a sliding door type in accordance with the opening and closing method.

The door is opened and closed at a predetermined turning radius of the door from the front side of the furniture to the front side from the hinge or hinge-fixed part, with the door being hinged or hinged.

In the case of the hinged door type, there is a problem that the door has a considerable restriction on the bathroom space because a certain turning radius that can be opened and closed by the door width is secured.

In the case of sliding doors, a rail is provided in the storage space of the furniture, and each door is mounted on the rail and the door is opened and closed by sliding along the rail. This will be described with reference to FIGS. 1 and 2. FIG.

FIG. 1 is a perspective view showing a conventional bathroom storage box, and FIG. 2 is a sectional view showing a conventional bathroom storage box. The conventional bathroom storage cabinet 10 includes a main body 12 having a shelf 11 formed to house a plurality of articles used in a bathroom and having a front surface opened, An upper rail 15 and a lower rail 16 installed in two rows in the upper and lower rails 13 and 14 and upper brackets 17a and 17b sliding along the upper rail 15 and the lower rail 16, An inner door 19a provided on the front surface of the main body 12 and an outer door 19b provided on the upper brackets 17a and 17b and the lower brackets 18a and 18b, ).

The upper brackets 17a and 17b and the lower brackets 18a and 18b are fixed to inner and outer doors 19a and 19b at one end and rollers R2 and R2, And the rollers R1 and R2 slide along the upper rail 15 and the lower rail 16 so that the outer doors 19a and 19b move left and right from the front of the main body 12 So that it can be opened and closed.

The sliding door of the bathroom storage cabinet 10 serves as inner and outer doors 19a and 19b and the upper and lower left and right doors 19a and 19b are provided with upper and lower rails The rollers R1 and R2 that slide while moving along the guide rails 15 and 16 are mounted by using the upper brackets 17a and 17b and the lower brackets 18a and 18b.

The upper and lower brackets 17a and 17b and the lower brackets 18a and 18b mounted on the inner and outer doors 19a and 19b are configured differently from each other. The upper brackets 17a and 17b, The brackets 18a and 18b are attached to the inner surfaces of the inner and outer doors 19a and 19b, respectively, by screwing.

The upper bracket 17b mounted on the outer door 19b has a longer vertical length and a longer length extending in the horizontal direction and the upper bracket 17a mounted on the inner door 19a has a longer distance from the rail 15 The horizontal length is shorter than the upper bracket 17b for the outer door due to the close relation and the vertical phase length is also short so as not to interfere with the upper bracket 17a of the outer door 19b when sliding.

In the prior art having such a structure, since the upper brackets 17a and 17b and the lower brackets 18a and 18b are attached to the inner surfaces of the inner and outer doors 19a and 19b, The width and the width of the brackets 17a and 17b must be increased by the thickness t1 and t2 of the brackets 17a and 17b. This results in waste of materials and costs, and deteriorates the productivity of the brackets 17a and 17b. .

The distance between the fixing point of the upper brackets 17a and 17b and the upper rail 15 provided on the roller R1 and the main body 1a is too large so that the upper bracket 17a The assembly of the upper brackets 17a and 17b which causes the roller R1 to be accurately placed on the upper rail 15 takes much time and airflow And a highly skilled technique is required, so that the assembling cost rises and a lot of defects are generated.

In order to smoothly and slidably slide the sliding door, the rollers must be installed at an accurate angle and height relative to the rails. As described above, the fixing points of the upper brackets 17a, 17b, the rollers R1, 15 and the upper brackets 17a, 17b are connected in a "C" -shaped manner, the upper and lower brackets 17a and 17b are connected to each other so that they are vulnerable to shocks such as slide operation, There is a problem that it becomes unstable and a failure occurs.

In addition, since the brackets are all exposed to the outside from the assembled door, the design is distracted to deteriorate the quality of the products in the cabinet where the design is influenced by the merchantability.

Patent Document 1: Korean Patent No. 10-1151895 (2012.05.24) Patent Document 2: Korean Utility Model Registration No. 20-0302194 (Jan. 13, 2003) Patent Document 3: Korean Utility Model Registration No. 20-0346730 (Mar. 23, 2004)

It is an object of the present invention to overcome the drawbacks of the prior art as described above, and it is an object of the present invention to simplify the structure of a door opening / closing device to reduce material and cost, and to realize slimness and light weight, In order to provide a slim sliding door type door opening / closing device of a bathroom cabinet.

It is another object of the present invention to provide a slim sliding door type door opening / closing device for a bathroom cabinet, which can simplify the structure of the door opening / closing device to reduce costs and improve assembly productivity.

It is still another object of the present invention to provide a bathroom cabinet for enhancing impact resistance to prevent the occurrence of faults, to prevent external exposure of the door opening / closing device to provide an excellent appearance, Slim sliding door type door opening / closing apparatus.

In order to accomplish the above object, the present invention provides a cabinet comprising: an installation space, a cover assembly plate, and an upper rail in front of an upper frame of the main body, a lower frame having a lower rail at a lower portion of the main body, A door rail and a pair of side rollers which are moved along the upper rail are provided on the upper surface of the upper door frame of the inner door so that the inner and outer doors provided with the door frame and the lower door frame are movable, Assembling the upper side outer brackets having the rollers moved along the door rail and the upper rail on both sides of the upper surface of the upper door frame of the outer door, assembling the upper and lower outer brackets of the inner and outer doors, A lower inner bracket and a lower outer bracket, each of which has rollers moved along the lower rail on both sides of the frame bottom, and a lower outer bracket, The installation space on the plate will be assembled removably to the decorative cover to block exposed to the outside.

In the present invention, the upper rail is disposed on the upper portion of the inner door, and the door rail is disposed on the upper portion of the outer door.

Further, in the present invention, the upper door frame is provided at its upper surface with an assembling groove having a center front and rear engaging jaws in the longitudinal direction, and a fixing part fitted to the assembling groove is formed in the lower part of the upper inner bracket and the upper outer bracket, The part is fixed by screw tightening.

Further, in the present invention, the upper inner bracket has a vertical portion protruding to the front upper portion of the fixing portion, a roller is rotatably installed on both rear sides of the vertical portion, a horizontal portion is moved to the center lower front portion of the vertical portion, And a door rail is formed on the upper part.

Further, in the present invention, the upper and lower outer brackets each have a vertical portion protruding from a front upper portion of the fixing portion, and an upper portion extending upwardly through a bent portion bent backward is formed at an upper end of the vertical portion, Respectively.

Further, in the present invention, an assembly groove having a center front-and-rear engaging jaw is formed in the longitudinal direction on the bottom surface of the lower door frame, a fixing part to be fitted into the assembly groove is formed in the upper part of the lower inner bracket and the lower outer bracket, The part is fixed by screw tightening.

According to an embodiment of the present invention, an assembly groove is formed in a front upper portion of the cover assembly plate, a latching protrusion is formed at a rear upper portion of the assembly groove, and the decorative cover bends a horizontal portion rearward from an upper end of the vertical portion, The assembly portion is extended through the bent portion bent downwardly and the assembling portion is detachably fitted to the assembly groove so that the end portion is caught by the engaging jaw.

Further, in the present invention, an inner handle is attached to one side of the front lower part of the inner door, and an outer handle is attached to the other side of the lower side of the front side of the outer door.

According to the slim sliding door type door opening / closing device of the bathroom cabinet of the present invention, the upper inner bracket, the upper outer bracket, the lower inner bracket, and the lower outer bracket are respectively installed on the upper and lower surfaces of the inner and outer doors, Since the thickness of the upper bracket can be reduced by the thickness of the upper bracket, the material and cost can be structurally reduced, and at the same time, slimness and weight reduction can be realized and the handling can be easily performed.

In addition, the upper inner bracket, the upper outer bracket, the lower inner bracket, the fixing point of the lower outer bracket and the contact points of the roller and the upper rail and door rail are very close to each other, thereby simplifying the structure of the brackets, It is possible to remarkably reduce the time and the airflow by facilitating the assembly, and it is possible to assemble without difficulty even for the beginner, thereby remarkably improving the assembly productivity.

Further, as described above, since the fixing point of the brackets is close to the contact point of the rollers and the rails, and the structure of the brackets is simple and small, the impact resistance is remarkably improved. As a result, deformation such as warpage is prevented, So that the occurrence of a failure can be prevented.

In addition, since the decorative cover blocks external exposure of the opening and closing devices such as the brackets, the rollers, and the rails, the appearance is good, so that the quality of the product can be improved with a clean appearance.

1 is a perspective view showing a conventional bathroom cabinet.
2 is a sectional view showing a conventional bathroom cabinet;
3 is a perspective view of the present invention.
4 is a perspective view showing a decorative cover according to the present invention in a separated state.
5 is a perspective view showing a front surface of inner and outer doors according to the present invention.
6 is a perspective view showing a rear surface of the inner and outer doors according to the present invention.
7 is a perspective view showing the bottom of the present invention.
8 is a sectional view taken along the line A-A in Fig.
9 is a sectional view taken along the line B - B in Fig. 3;
10A is an enlarged view of a portion "C" in FIG. 5;
10B is an enlarged view of a portion "D"
Fig. 10C is an enlarged view of the "E" part in Fig. 5;
10D is an enlarged view of a portion "F" in FIG.
FIG. 11A is an enlarged view of a portion "G" in FIG. 6;
11B is an enlarged view of the "H"
Fig. 11C is an enlarged view of the portion "I"
11D is an enlarged view of the portion "J"
12A is a perspective view of an upper inner bracket according to the present invention.
12b and 12c are perspective views showing an upper outer bracket according to the present invention;
13A is a perspective view showing a lower inner bracket according to the present invention.
FIG. 13B is a perspective view showing a lower outer bracket according to the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the technical structure of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 3 to 13A and 13B, the slim sliding door type door opening / closing apparatus of the present invention comprises a cover assembly plate 112 formed at an upper portion of an installation space 111 having front and lower openings, (110) of a main body (100) having an upper rail (113) formed at a rear lower portion of the main body (111); A lower frame 120 disposed at a lower portion of the main body 100 and having lower rails 121 and 122; Inner and outer doors 200 and 300 which are disposed on the front surface of the main body 100 so as to be movable left and right and have upper and lower door frames 210 and 310 and lower door frames 220 and 320; A door rail 410 which is assembled in the longitudinal direction on the upper surface of the upper door frame 210 of the inner door 200 so as to protrude forward and a pair of side rollers 420 which are moved along the upper rail 113, Bracket 400; A pair of upper side outer brackets 500 each having a pair of rollers 510 and 610 which are installed on both sides of the upper surface of the upper door frame 310 of the outer door 300 and are moved along the door rail 410 and the upper rail 113, (600); A lower inner bracket 700 and a lower outer bracket 800 having rollers 710 and 810 which are assembled on both sides of the bottom of the lower door frame 220 and moved along the lower rails 121 and 122, ); And a decorative cover 900 detachably assembled to the cover assembly plate 112 of the upper frame 110 to prevent the installation space 111 from being exposed to the outside. .

Here, the main body 100 constitutes a body of a bathroom cabinet, and the main body 100 includes an upper frame 110, a lower frame 120, a side frame, and a shelf.

The upper frame 110 is horizontally disposed on the upper portion of the main body 100. The upper frame 110 has a front space and a lower space. A cover assembly plate 112 is formed on the upper portion and an upper rail 113 is formed on a rear lower portion of the installation space 111. [ An upper inner bracket 400 and upper outer brackets 500 and 600 and rollers 420 and 510 and 610 are installed in the installation space 111. The cover assembly plate 112 is provided with an installation space A decorative cover 900 for blocking external exposure of the upper surface 111 is detachably assembled and the rollers 420 and 610 are mounted on the upper rail 113 so as to be movable left and right.

The lower frame 120 is horizontally disposed at a lower portion of the main body 100. The lower frame 120 is provided with lower rails 121 and 122 at the front bottom thereof. At this time, rollers 710 and 810 are inserted into the lower rails 121 and 122, respectively, so as to be movable left and right.

The inner and outer doors 200 and 300 are disposed on the front surface of the main body 100 so as to be movable left and right. The inner and outer doors 200 and 300 include upper and lower door frames 210 and 310, A lower door frame 220 and a side door frame. An upper inner bracket 400 is assembled on the upper surface of the inner upper door frame 210. An upper outer bracket 500 and 600 are assembled on the upper upper door frame 310, A lower inner bracket 700 is assembled to the bottom of the door frame 220 and a lower outer bracket 800 is assembled to the bottom of the outer lower door frame 320.

According to the present invention, an inner handle 230 is attached to one side of the lower front of the inner door 200, and an outer handle 330 is attached to the other side of the lower surface of the outer door 300. The inner and outer grips 230 and 330 are manufactured and packaged separately. The inner and outer grips 230 and 330 are attached to the inner door 200 and the outer door 300 through an adhesive or a piece, Respectively.

7, the inner and outer lower door frames 220 and 320 and the lower frame 120 are provided with stoppers for absorbing impacts and noise during opening and closing of the inner and outer doors 200 and 300, (250) 350 and a buffer member 125 are respectively installed.

The upper inner bracket 400 is assembled in the longitudinal direction on the upper surface of the inner upper door frame 210. A door rail 410 protruding forward is formed at the front central portion of the upper inner bracket 400, On both sides of the rear side of the inner bracket 400, there are provided side rollers 420 which are moved laterally along the upper rail 113 of the upper frame 110. At this time, a roller 610 is mounted on the door rail 410 so as to be movable left and right, and the both side rollers 420 are mounted on the upper rail 113 so as to be movable left and right.

8 and 9, the upper rail 113 is disposed on the upper portion of the inner door 200, and the door rail 410 is disposed on the upper portion of the outer door 300 do. At this time, since the upper rail 113 and the door rail 410 are located above the inner and outer doors 200 and 300, the slim and light weight of the cabinet can be structurally realized .

The upper outer brackets 500 and 600 are assembled on both sides of the upper surface of the outer upper door frame 310. The door rails 410 and the upper rails And rollers 510 and 610, respectively, which are moved along the rollers 113 and 113, respectively. The rollers 510 of the upper side outer bracket 500 are mounted on the door rail 410 so as to be movable left and right and the rollers 610 of the upper side upper side bracket 600 are mounted on the upper rail 113 to the left and right And is mounted movably.

According to the present invention, an assembly groove 211 (311) having a central front and rear stopping hooks (211a) and (311a) is formed on the upper surface of the upper door frames 210 and 310 in the longitudinal direction, and the upper inner bracket 400 And the upper outer brackets 500 and 600 are formed with fixing portions 401 and 501 and a fixing portion 401 to be fitted into the mounting recesses 211 and 311. The fixing portions 401 and 501 601 are fixed by screw (S) fastening, respectively. When the fixing portions 401, 501 and 601 are fitted into the fitting grooves 211 and 311 and fixed by screws S, the upper inner bracket 400 and the upper outer bracket 500 600 can be easily and easily fixed to the upper surfaces of the upper door frames 210, 310, respectively.

12A, the upper inner bracket 400 includes a vertical portion 402 protruding from a front upper portion of the fixing portion 401 and a roller 420 extending toward the rear side of the vertical portion 402, A horizontal portion 403 is projected to a front lower center of the vertical portion 402 and a door rail 410 is formed on an upper end of the horizontal portion 403. At this time, the securing portion 401 of the upper inner bracket 400 is formed with a latching groove 401a corresponding to the latching protrusion 211a of the assembling recess 211.

12B and 12C, the upper and lower side outer brackets 500 and 600 have vertical portions 502 and 602 protruding from the front upper portion of the fixing portions 501 and 601, At the upper end of each of the units 502 and 602 is formed an extended portion 504 and 604 extending upwardly through the bent portions 503 and 603 bent backward. And rollers 510 and 610 are rotatably installed at the rear. At this time, the fixing portions 501 and 601 of the upper outer brackets 500 and 600 are formed with latching grooves 501a and 601a corresponding to the latching protrusions 311a of the fitting groove 311, The bent portion 503 of the one upper side outer bracket 500 is formed to be shorter by a distance that the vertical portion 502 is spaced apart from the door rail 410 and the bent portion 603 of the other upper side outer bracket 600 is formed to be perpendicular The portion 602 is formed to be longer than the upper rail 113 by a distance.

The lower inner bracket 700 and the lower outer bracket 800 are respectively assembled to both sides of the bottom of the lower door frames 220 and 320. The lower inner bracket 700 and the lower outer bracket 800 And rollers 710 and 810 which are moved along the rails 121 and 122, respectively. At this time, the roller 710 of the lower inner bracket 700 is inserted into the lower rail 121 so as to be movable left and right, and the lower outer bracket 800 is coupled to the lower rail 122 so as to be movable left and right .

According to the present invention, an assembly groove 221 (321) having a central longitudinal hooking step 221a (321a) is formed in the bottom surface of the lower door frame 220 (320) Fixing portions 701 and 801 are formed at upper portions of the lower outer bracket 700 and the lower outer bracket 800 so that the fixing portions 701 and 801 are fitted into the fitting recesses 221 and 321. The fixing portions 701 and 801 are screw- And is fixed. At this time, the fixing portions 701 and 801 of the lower inner bracket 700 and the lower outer bracket 800 are provided with engaging grooves 701a and 701a corresponding to the engaging protrusions 221a and 321a of the assembling recesses 221 and 321, ) 801a are formed. The lower inner bracket 700 and the lower outer bracket 800 can be fixed to the lower door frame 220 by fixing the fixing portions 701 and 801 to the assembly recesses 221 and 321 and fixing them by screwing, And can be easily and easily fixed to the bottom surface of the base plate 320, respectively.

The decorative cover 900 is detachably assembled to the cover assembly plate 112 of the upper frame 110. The decorative cover 900 prevents the installation space 111 from being exposed to the outside. At this time, the decorative cover 900 is exposed to the outside by the upper inner bracket 400, the upper outer brackets 500, 600 and the rollers 420, 510, 610 built in the installation space 111 The decorative cover 900 may be provided with an LED for emitting light and the decorative cover 900 may be coated with a luminous paint, It can be made up of a number of different colors, and you can create a point of bathroom by installing artificial gems. Accordingly, a thin decorative cover can be provided as a package so that the consumer can replace the decorative cover 900 with a desired one.

According to the present invention, an assembly groove 112a is formed in a front upper portion of the cover assembly plate 112, a latching protrusion 112b is protruded at a rear upper portion of the assembly groove 112a, The horizontal portion 920 is bent rearward from the upper end of the vertical portion 910 and the assembly portion 940 is extended through the bent portion 930 bent downward at the rear end of the horizontal portion 920, The portion 940 is detachably fitted into the fitting groove 112a so that the end portion is caught by the engaging protrusion 112b. At this time, when the assembly unit 940 is pushed into the assembly groove 112a, the end of the assembly unit 940 is caught and fixed by the latching protrusion 112b, while the vertical unit 910 is pushed upward, 940 are separated from the engaging protrusion 112b, the user can easily separate the decorative cover 900 from the cover assembly plate 112 while easily separating it.

The upper inner bracket 400, the upper outer brackets 500 and 600, the lower inner bracket 700 and the lower outer bracket 800 are disposed on the upper and lower surfaces of the inner and outer doors 200 and 300, Since the thickness t1 (t2) of the conventional upper brackets 17a and 17b shown in Fig. 2 can be eliminated (t1) (t2), the thickness of the conventional upper brackets 17a and 17b can be reduced. It is possible to reduce the cost, and at the same time, the slimness and the weight reduction can be realized and the handling can be easily performed.

The present invention also includes an upper inner bracket 400, an upper outer bracket 500 600, a lower inner bracket 700, a fixed point of the lower outer bracket 800 and rollers 420, 510, The upper rails 113 and the door rails 410 are very close to each other, so that the structure of the brackets can be simplified, and the size of the brackets can be made small, thereby remarkably reducing the cost of the components. And it is possible to assemble without difficulty even for a beginner, so that the productivity of assembly can be remarkably improved.

As described above, according to the present invention, since the fixing point of the brackets is close to the contact point of the rollers and the rails, and the structure of the brackets is simple and small, the impact resistance is remarkably improved. Thus, deformation such as warpage is prevented, There is an advantage that the malfunctioning can be prevented because the quiet operation state is stably maintained.

In addition, in the present invention, since the decorative cover 900 blocks external exposure of the opening and closing devices such as the brackets, the rollers and the rails in the bathroom cabinet, which is an important design for the appearance, the appearance is excellent, There is an advantage to be improved.

100: main body 110: upper frame
111: installation space 112: cover assembly plate
113: upper rail 120: lower frame
121, 122: Lower rail 200: Inner door
210: upper door frame 220: lower door frame
300: outer door 310: upper door frame
320: lower door frame 400: upper inner bracket
410: door rail 420: roller
500: upper outer bracket 510: roller
600: upper outer bracket 610: roller
700: lower inner bracket 710: roller
800: lower outer bracket 810: roller
900: Decorative cover

Claims (9)

A cover assembly plate 112 formed at an upper portion of an installation space 111 in which a front and a lower are opened and an upper rail 113 formed at a rear lower portion of the installation space 111, ); A lower frame 120 disposed at a lower portion of the main body 100 and having lower rails 121 and 122; Inner and outer doors 200 and 300 which are disposed on the front surface of the main body 100 so as to be movable left and right and have upper and lower door frames 210 and 310 and lower door frames 220 and 320; A door rail 410 which is assembled in the longitudinal direction on the upper surface of the upper door frame 210 of the inner door 200 so as to protrude forward and a pair of side rollers 420 which are moved along the upper rail 113, Bracket 400; A pair of upper side outer brackets 500 each having a pair of rollers 510 and 610 which are installed on both sides of the upper surface of the upper door frame 310 of the outer door 300 and are moved along the door rail 410 and the upper rail 113, (600); A lower inner bracket 700 and a lower outer bracket 800 having rollers 710 and 810 which are assembled on both sides of the bottom of the lower door frame 220 and moved along the lower rails 121 and 122, ); And a decorative cover (900) detachably assembled to the cover assembly plate (112) of the upper frame (110) to block the installation space (111) from being exposed to the outside. Door opening / closing device. The sliding door of claim 1, wherein the upper rail (113) is disposed on an upper portion of the inner door (200), and the door rail (410) is disposed on an upper portion of the outer door (300) Door opening / closing device. The upper door frame (210, 310) according to claim 1, wherein an assembly groove (211) (311) having a central front and rear locking hooks (211a, 311a) is longitudinally formed on an upper surface of the upper door frame The fixing portions 401 and 501 and the fixing portions 401 and 501 are formed at the lower portions of the fixing bracket 400 and the upper outer brackets 500 and 600. The fixing portions 401 and 501 (601) is fixed by a screw (S) fastening. The upper inner bracket (400) according to claim 3, wherein the upper inner bracket (400) has a vertical portion (402) protruding from a front upper portion of the fixing portion (401) Wherein a horizontal portion 403 is projected to a front lower center front of the vertical portion 402 and a door rail 410 is formed on an upper end of the horizontal portion 403. The slim- Door opening / closing device. The apparatus according to claim 3, wherein the upper side outer brackets (500, 600) have vertical portions (502) (602) protruding in a front upper portion of the fixing portions (501, 601) An extension portion 504 and an extension portion 504 extending upwardly are formed through bent portions 503 and 603 which are bent backward and a roller 510 is provided at the rear of the extension portions 504 and 604. [ (610) is rotatably installed in the bathroom cabinet. The lower door frame according to claim 1, wherein an assembling groove (221) (321) having a central longitudinal hooking step (221a) (321a) is formed in the bottom surface of the lower door frame (220) The fixing portions 701 and 801 are formed at the upper portions of the upper and lower outer brackets 700 and 800 so as to be fitted into the fitting recesses 221 and 321. The fixing portions 701 and 801 are fixed by screwing A slim sliding door type door opening / closing device of a bathroom cabinet. The cover cover according to claim 1, wherein an assembly groove (112a) is formed in a front upper portion of the cover assembly plate (112), a locking protrusion (112b) The horizontal portion 920 is bent backward from the upper end of the vertical portion 910 and the assembly portion 940 is extended through the bent portion 930 bent downward at the rear end of the horizontal portion 920, Wherein the assembly portion (940) is detachably fitted into the mounting groove (112a) so that the end portion is caught by the latching protrusion (112b). The toilet according to claim 1, wherein an inner handle (230) is attached to one side of the lower front of the inner door (200), and an outer handle (330) Sliding sliding door type door opening and closing device of cabinet. The decorative cover (900) according to claim 1 or 2, wherein the decorative cover (900) is configured such that any one of a luminous sheet, an LED, a luminous paint, Sliding door opening / closing device.

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