KR102643469B1 - Shelf simple-furnishing type furniture assembly - Google Patents

Abstract

An invention for prefabricated furniture in which shelves can be easily installed is disclosed. The prefabricated furniture for which the disclosed shelf is easy to install includes: a lower panel unit connecting one side of the opposing first side panel unit and the second side panel unit, and an upper connecting the other side of the first side panel unit and the second side panel unit. A body including a panel unit, a plurality of inner supports spaced apart from each other by a set distance between the first side panel unit and the second side panel unit, a shelf on each side of which is installed to fit into a neighboring inner supporter, and each of the shelves. It is characterized by including an installation guide that guides installation by fitting and connecting both sides.

Description

Assembled furniture with easy shelf installation {SHELF SIMPLE-FURNISHING TYPE FURNITURE ASSEMBLY}

The present invention relates to prefabricated furniture in which shelves can be easily installed. More specifically, the body of the furniture consisting of side panel units, lower panel units, and upper panel units on both sides is reinforced by arranging a plurality of inner supports, and the opposing The assembling and disassembly of the shelf is increased by easily attaching the shelf to the inner vertical beam of the neighboring inner supporter between the side panel units through the installation guide. In order to support the shelf, there is a reinforcement bar connected on both sides to the inner vertical beam. This relates to prefabricated furniture that is easy to install shelves in order to increase the durability of the shelves by installing a hanger partition.

In general, steel furniture used for office or home purposes is divided into bookshelf, desk, bookcase, wall cabinet, mobile rack, etc. depending on the purpose. In these iron furniture, bookends, etc. are often used to keep books and small items on the shelves in good condition.

In existing steel furniture, when forming both side plates of the furniture body, a reinforcement frame made of separate pipes is added to the inner surface of both ends of the side plate to maintain the rigidity of the side plate, or both ends of the side plate are turned inward. “By curving it into a shape, the rigidity of the side plate is maintained without adding a separate reinforcement frame.

As a related technology, a prefabricated iron bookcase has been disclosed under Korea Registered Utility Model Registration Publication No. 20-0442179 (registered on October 8, 2008).

The above-described technical configuration is background technology to aid understanding of the present invention, and does not mean that it is widely known prior art in the technical field to which the present invention belongs.

Existing steel furniture is assembled by bolting or mounting both sides of a shelf to the corresponding side plate or side plate assembly, but there is a problem in that the side plate or side plate assembly is deformed or separated from the shelf due to the shelf's own weight and contents such as books placed on the shelf.

Therefore, there is a need to improve this.

The present invention was created to improve the problems described above, and it is possible to easily install a shelf to be reinforced by arranging a plurality of inner supports on the body of furniture composed of side panel units, lower panel units, and upper panel units on both sides. The purpose is to provide prefabricated furniture.

The present invention provides prefabricated furniture that is easy to install a shelf in order to increase the assembly and disassembly of the shelf by easily inserting the shelf into the inner vertical beam of the neighboring inner supporter between opposing side panel units through an installation guide. There is a purpose to doing so.

The purpose of the present invention is to provide prefabricated furniture that is easy to install a shelf to increase the durability of the shelf by mounting a hanger partition on a reinforcement bar connected on both sides to the inner vertical beam to support the shelf.

The present invention provides prefabricated furniture that is easy to install shelves in, allowing the shelves to be expanded by placing shelves in both directions on a horizontal beam connected on both sides to an inner vertical beam, and then mounting the mounting brackets for each shelf on the horizontal beam. There is a purpose.

The prefabricated furniture for which shelves can be easily installed according to the present invention includes: a lower panel unit connecting one side of the opposing first side panel unit and the second side panel unit, and a lower panel unit connecting one side of the first side panel unit and the second side panel unit. A body including an upper panel unit connecting the other side; a plurality of inner supports spaced apart from each other by a set distance between the first side panel unit and the second side panel unit; Shelves on which both sides are fitted to the neighboring inner supports; and an installation guide that guides installation by fitting and connecting both sides of each of the shelves.

The inner supporter includes a plurality of inner vertical beams disposed between the first side panel unit and the second side panel unit, and both sides are connected to and supported by the body.

The installation guide part is fixedly connected to at least one of one circumferential surface and the other circumferential surface of the circumferential surface of the inner vertical beam, and is disposed in plural pieces along the axial direction of the inner vertical beam, so that the corresponding shelf A supporting beam supporting the edge of the relevant side; And a side plate supported on each of the mounting beams or a specific mounting beam and assembled and connected to the corresponding inner vertical beam.

The installation guide portion includes seating protrusions extending from both sides of the shelf; A first seating groove portion continuously recessed along the axial direction of the corresponding mounting beam to seat the side plate; And a second seating groove portion that is continuously recessed along the axial direction of the corresponding mounting beam and seats the corresponding seating protrusion.

The installation guide unit includes a support pin provided on the mounting beam to support the side plate and the seating protrusion respectively seated in the first and second seating grooves formed on the mounting beam.

The adjacent mounting beams are characterized in that they are connected to reinforcement bars to support and reinforce the shelf.

The reinforcement bar is characterized in that it forms an installation groove for installing an elastically deformable hanger partition.

The adjacent inner vertical beams are connected by horizontal beams, and the shelves include a first shelf provided on one side of each of the horizontal beams; And a second shelf provided on the other side of the corresponding horizontal beam, wherein the first shelf forms a first mounting bracket on the remaining edges excluding the edge mounted on the corresponding horizontal beam to be mounted on the corresponding horizontal beam. The second shelf is mounted on the corresponding horizontal beam by forming second mounting brackets on the remaining edges excluding the edge mounted on the corresponding mounting beam.

As described above, unlike the prior art, the prefabricated furniture with easy shelf installation according to the present invention is reinforced by arranging a plurality of inner supports on the body of the furniture consisting of side panel units, lower panel units, and upper panel units on both sides. can do.

The present invention can increase the assembly and disassembly of the shelf by easily inserting the shelf into the inner vertical beam of the neighboring inner supporter between opposing side panel units through the installation guide.

The present invention can increase the durability of the shelf by mounting a hanger partition on a reinforcement bar connected on both sides to the inner vertical beam to support the shelf.

In the present invention, the shelves can be expanded and installed by placing shelves in both directions on a horizontal beam connected to the inner vertical beam on both sides, and then mounting the mounting brackets of each shelf on the horizontal beam.

Figure 1 is a perspective view of prefabricated furniture on which shelves can be easily installed according to an embodiment of the present invention.
Figure 2 is a front view of prefabricated furniture with easy shelf installation according to an embodiment of the present invention.
Figure 3 is an enlarged perspective view of the main part of the shelf of the prefabricated furniture in which the shelf is easy to install according to an embodiment of the present invention in an installed state.
Figure 4 is an enlarged bottom perspective view of the main part of a prefabricated furniture in which shelves can be easily installed according to an embodiment of the present invention.
Figure 5 is an exploded perspective view of the main portion of prefabricated furniture in which shelves can be easily installed according to an embodiment of the present invention.
Figure 6 is an exploded perspective view of the main portion of the bottom of a prefabricated furniture in which shelves can be easily installed according to an embodiment of the present invention.
Figure 7 is an enlarged exploded perspective view of the main portion of the bottom of a prefabricated furniture in which shelves can be easily installed according to an embodiment of the present invention.
Figure 8 is a cross-sectional view taken along line AA of Figure 1.
Figure 9 is a cross-sectional view taken along line BB of Figure 1.
Figure 10 is a cross-sectional view taken along line CC of Figure 1.

Hereinafter, an embodiment of prefabricated furniture in which shelves can be easily installed according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a perspective view of prefabricated furniture with easy shelf installation according to an embodiment of the present invention, and Figure 2 is a front view of prefabricated furniture with easy shelf installation according to an embodiment of the present invention.

Figure 3 is an enlarged perspective view of the main part of the prefabricated furniture with easy shelf installation according to an embodiment of the present invention with the shelf installed, and Figure 4 is an enlarged perspective view of the prefabricated furniture with easy shelf installation according to an embodiment of the present invention. This is an enlarged perspective view of the lower back.

Figure 5 is an exploded perspective view of the main part of the prefabricated furniture with easy shelf installation according to an embodiment of the present invention, and Figure 6 is an exploded perspective view of the main part of the bottom of the prefabricated furniture with easy shelf installation according to an embodiment of the present invention. , Figure 7 is an enlarged exploded perspective view of the main portion of the bottom of a prefabricated furniture with easy shelf installation according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 1, FIG. 9 is a cross-sectional view taken along line B-B of FIG. 1, and FIG. 10 is a cross-sectional view taken along line C-C of FIG. 1.

Referring to FIGS. 1 to 10, the prefabricated furniture 100, which is easy to install a shelf according to an embodiment of the present invention, includes a body 105, an inner supporter 150, a shelf 10, and an installation guide 170. ) includes.

The body 105 forms the frame (outer shape) of the prefabricated furniture 100 according to the present invention, and can be applied in various shapes and materials such as iron, wood, or plastic.

For convenience, the body 105 is shown as having a rectangular parallelepiped shape.

Accordingly, the body 105 includes a first side panel unit 110, a second side panel unit 120, a lower panel unit 130, and an upper panel unit 140.

The first side panel unit 110 and the second side panel unit 120 form both sides of the prefabricated furniture 100, and the lower panel unit 130 forms one side and the second side of the first side panel unit 110. One side of the panel unit 120 is connected and supported, and the upper panel unit 140 connects and supports the other side of the first side panel unit 110 and the other side of the second side panel unit 120.

Meanwhile, a plurality of inner supports 150 are disposed inside the body 105 between the opposing first side panel unit 110 and the second side panel unit 120, so that the first side panel unit 110 ) and serves to support the second side panel unit 120, the lower panel unit 130, and the upper panel unit 140.

That is, the first side panel unit 110 forms one side of the two sides of the prefabricated furniture 100, and can be separated from the (square) frame-shaped one side frame 112 and the frame-shaped one side frame 112. It includes a one-side plate 114 that is combined and blocked. At this time, the one-side plate 114 can be made of various materials such as iron and has various shapes, and is firmly bound to the one-side frame 112 by the one-side binding member 115.

Likewise, the second side panel unit 120 forms the other side of the two sides of the prefabricated furniture 100 and can be separated from the other side frame 122 of a (square) frame shape and the other frame 122 of a frame shape. It includes another side plate 124 that is coupled and blocked. At this time, the other side plate 124 can be made of various materials such as iron and has various shapes, and is firmly bound to the other frame 122 by the other side binding member 125.

And, in the width direction (W) of the prefabricated furniture 100, the inner supporter 150 disposed on the outermost side supports the one side frame 112 of the first side panel unit 110 and is disposed on the outermost side on the other side. The inner supporter 150 supports the other frame 122 of the second side panel unit 120.

In addition, the inner supporters 150, excluding the outermost inner supporter 150 on one side and the outermost inner supporter 150 on the other side, support the lower panel unit 130 and the upper panel unit 140 with respect to the floor, or Guides the installation of the panel unit 130 and the upper panel unit 140.

At this time, for convenience, a plurality of inner supports 150 arranged are given the same reference numeral.

Meanwhile, each of the inner supports 150 may include an inner lower beam 151, an inner vertical beam 152, and an inner upper beam 153.

The inner lower beam 151 is fitted and assembled with the lower side of the corresponding one side frame 112, the lower side of the other side frame 122, or the corresponding portion of the lower panel unit 130.

In particular, a plurality of inner supports 150 are arranged between the first side panel unit 110 and the second side panel unit 120, and each inner lower beam 151 is arranged so that the axial direction is parallel or inclined to each other. . For convenience, the plurality of inner lower beams 151 are arranged in the axial direction parallel to each other. Of course, the inner lower beam 151 can be transformed into various shapes in cross section.

In addition, the inner vertical beam 152 is integrally or separably coupled to each of the inner lower beams 151 and extends toward the upper panel unit 140. At this time, the inner vertical beam 152 may be connected between one or more pairs of inner lower beams 151 arranged in a straight line, or may be connected on the upper side of one inner lower beam 151.

For convenience, two inner lower beams 151 of each inner supporter 150 are provided in a straight line, and the opposing ends along the axial direction are integrally or separably coupled to the inner vertical beam 152.

In addition, one or more inner vertical beams 152 may be provided for each inner supporter 150.

Of course, the inner vertical beam 152 can be transformed into various shapes in cross section. At this time, the inner vertical beam 152 adjacent to the width direction (W) of the prefabricated furniture 100 can guide the fixed installation of the shelf 10. A plurality of shelves 10 may be installed along the axial direction of the inner vertical beam 152.

In addition, the inner upper beam 153 is arranged to correspond to the inner lower beam 151 and can be integrated with or separated from the upper side of the corresponding one side frame 112, the upper side of the other side frame 122, or the inner vertical beam 152. are combined together.

In addition, a plurality of inner supports 150 are arranged between the first side panel unit 110 and the second side panel unit 120, and each inner upper beam 153 is arranged so that the axial direction is parallel or inclined to each other. . For convenience, the plurality of inner upper beams 153 are arranged parallel to each other in the axial direction.

Then, the inner upper beam 153 is fitted and assembled with the corresponding portion of the upper panel unit 140. Of course, the inner upper beam 153 can be transformed into various shapes in cross section.

At this time, one side of the inner vertical beam 152 may be integrally or welded and fixed to the corresponding inner lower beam 151, and the other side may be detachably fitted to the corresponding inner upper beam 153.

Meanwhile, the shelf 1 is installed on both sides to be inserted into the inner supporter 150, especially the inner vertical beam 152, adjacent to the width direction (W) of the prefabricated furniture 100.

To guide this, an installation guide 170 is provided.

The installation guide 170 serves to guide the installation by fitting and connecting both sides of each shelf 10.

As an example, the installation guide 170 may include a holding beam 171, a side plate 172, a seating protrusion 173, a first seating groove 174, and a second seating groove 175.

The mounting beam 171 is fixedly connected to at least one of one circumferential surface and the other circumferential surface of each inner vertical beam 152 in the circumferential direction.

In other words, the mounting beam 171 is fixedly connected to the front and rear directions of the inner vertical beam 152, which is a direction perpendicular to the width direction (W) of the prefabricated furniture 100. In particular, each of the holding beams 171 fixedly connected to the inner vertical beam 152 of the outermost inner supporter 150 on one side may be connected and supported to the corresponding one side frame 112.

In addition, each of the holding beams 171 fixedly connected to the inner vertical beam 152 of the outermost inner supporter 150 on the other side may be connected and supported to the corresponding other side frame 122.

In addition, a plurality of mounting beams 171 are arranged along the axial direction of the inner vertical beam 152, and support the corresponding edge of the corresponding shelf 10. At this time, the mounting beam 171 can be transformed into various shapes in cross section and can be made of various materials.

In addition, the side plate 172 is supported on each of the mounting beams 171 or on a specific mounting beam 171, and is assembled and connected to the corresponding inner vertical beam 152.

In particular, so that the side plate 172 and the shelf 10 can be easily assembled into the corresponding mounting beam 171 and inner vertical beam 152, a seating protrusion 173, a first seating groove 174, and A second seating groove 175 is provided.

The seating protrusions 173 extend from both sides of the shelf 10 corresponding to the width direction (W) of the prefabricated furniture 100. At this time, the seating protrusion 173 can be deformed into various shapes, and is assumed to be extended downward or bent downward from the shelf 10.

And, the first seating groove 174 is continuously recessed along the axial direction of the corresponding mounting beam 171 to seat the side plate 172.

In addition, the second seating groove 175 is continuously recessed along the axial direction of the corresponding mounting beam 171 to seat the corresponding seating protrusion 173.

At this time, each of the mounting beams 171 may be formed by separately separating the first seating groove portion 174 and the second seating groove portion 175, but the corresponding first seating groove portion 174 and the second seating groove portion 175 ) are connected to form. Therefore, the side plate 172 seated in the first seating groove 174 and the seating protrusion 173 seated in the corresponding second seating groove 175 may face each other and support each other.

In addition, each of the side plates 172 forms a plurality of insertion protrusions 172a, and the inner vertical beam 152 forms an insertion hole 152a for inserting the corresponding insertion protrusion 172a. Therefore, the side plate 172 is seated on the mounting beam 171, and is supported by being mounted on the corresponding inner vertical beam 152. Of course, the insertion protrusion 172a and the insertion hole 152a can be applied in various shapes and numbers.

In particular, the mounting beam 171 has second seating grooves 175 on both sides of the first seating groove 174 so that the shelf 10 can be mounted in both directions based on the first seating groove 174. It can accommodate the corresponding seating protrusion 173.

At this time, the inner vertical beam 152 of the inner supporter 150 disposed on the outermost side in the width direction (W) of the prefabricated furniture 100 and the mounting beam 171 connected and fixed to one side frame 112 are one Mount the shelf (10). Therefore, the corresponding mounting beam 171 can form one second seating groove 175.

Alternatively, for compatibility, the mounting beam 171 disposed on the outermost side of one side may also be provided with second seating grooves 175 on both sides of the first seating groove 174 to be connected to the first seating groove 174. You can. In this case, since one of the second seating grooves 175 formed as a pair in the corresponding mounting beam 171 is empty, at least the side plate 172 seated in the first seating groove 174 is Shaking may occur.

To prevent this, each of the mounting beams 171 has a first seating groove 174 and a pair of second seating grooves 175 connected to each other, and the depth of the first seating groove 174 is determined by the second seating groove. It can be formed deeper than the depth of the groove portion 175. Because of this, the side plate 172 is stably received in the first seating groove 174.

In particular, each of the mounting beams 171 is attached to the corresponding inner vertical beam 152 alone, or to the corresponding inner vertical beam 152 and one side frame 112, and to the corresponding inner vertical beam 152 and the other side frame 122. It can be fixedly connected by welding, etc.

Additionally, the side plate 172 may be arbitrarily moved along the center line of the first seating groove 174, and the seating protrusion 175 may be arbitrarily moved along the center line of the second seating groove 175.

To prevent this, a support pin 176 is provided.

The support pin 176 is a mounting beam to support the corresponding side plate 172 and seating protrusion 173 respectively seated in the first seating groove 174 and the second seating groove 175 formed on the mounting beam 171. It is provided in (171).

In more detail, the side plate 172 forms a hole, and the seating protrusion 173 forms the supporting groove 179 open downward.

So, with the side plate 172 seated in the corresponding first seating groove 174, the support pin 176 is inserted into the corresponding mounting beam 171 and into the hole of the side plate 172. And, the supporting groove 179 of the seating protrusion 173 accommodates the support pin 176 exposed in the second seating groove 175 of the corresponding mounting beam 171.

Accordingly, the side plate 172 is supported while being fixed in position to the first seating groove 174 by the corresponding support pin 176, and the seating protrusion 173 is positioned in the second seating groove 174 by the corresponding support pin 176. It is supported while being positioned in the groove portion 175.

Of course, the side plate 172 can also be installed on the lower panel unit 130.

In addition, in the width direction (W) of the prefabricated furniture 100, neighboring mounting beams 171 are connected to reinforcement bars 177 to support and reinforce the shelf 10. At this time, the reinforcement bar 177 may be fixedly connected to the supporting beams 171 on both sides corresponding to the axial direction by welding, bolting, or fitting assembly.

As the shelf 10 is supported on the corresponding reinforcement bar 177, the durability of the shelf 10 is increased. Of course, the reinforcement 177 can be applied in various shapes and materials.

In addition, the reinforcing bar 177 may form an installation groove 178 for guiding the installation of the elastically deformable hanger partition 20. In particular, as the hanger partition 20 is not directly installed on the shelf 10, but is directly connected to the reinforcement bar 177, the durability of the shelf 10 can be further increased.

In addition, as the reinforcing bar 177, which is smaller in size than the shelf 10, is manufactured to have sufficient rigidity to stably connect and support the hanger partition 20, compared to the manufacturing cost of manufacturing the shelf 10 to have sufficient rigidity, the reinforcing bar (177) This production cost can be reduced.

Meanwhile, in the width direction (W) of the prefabricated furniture 100, neighboring inner vertical beams 152 are connected to the horizontal beam 17. At this time, the horizontal beam 17 may be fixedly connected to the inner vertical beam 152 corresponding to both sides along the axial direction by welding, bolting, or fitting assembly. Of course, the horizontal beam 17 can be transformed into various shapes.

In addition, the shelves 10 are provided on both sides of the horizontal beam 17 along a direction perpendicular to the central axis of the horizontal beam 17 to ensure expandability and support.

That is, the shelf 10 may include a first shelf 12 provided on one side of each of the horizontal beams 17, and a second shelf 14 provided on the other side of the corresponding horizontal beam 17. That is, the first shelf 12 and the second shelf 14 are provided in pairs on each of the horizontal beams 17.

In addition, the first shelf 12 is mounted on the corresponding horizontal beam 17 by forming first mounting brackets 13 on all or part of the edges except for the edge mounted on the corresponding mounting beam 171. Therefore, the first shelf 12 is simultaneously mounted on the corresponding mounting beam 171 and the horizontal beam 17 and is stably supported. Of course, the first mounting bracket 13 can be modified into various shapes.

Likewise, the second shelf 14 is mounted on the corresponding horizontal beam 17 by forming second mounting brackets 15 on all or part of the edges except for the edge mounted on the corresponding mounting beam 171. Therefore, the second shelf 14 is simultaneously mounted on the corresponding mounting beam 171 and the horizontal beam 17 and is stably supported. Of course, the second mounting bracket 15 can be modified into various shapes.

As a result, the prefabricated furniture 100 according to the present invention is provided with an inner supporter 150 on the inside of the body 105 to reinforce strength, and each shelf 10 can be inserted and assembled through the installation guide 170. This improves the assembly and disassembly of the shelf 10, and the first shelf 12 and the second shelf 14 are assembled in pairs so that they can be used on the front and rear sides of the body 105, respectively. 14) scalability is possible.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: Shelf 12: First shelf
14: second shelf 17: horizontal beam
20: Hanger partition 100: Assembled furniture
110: first side panel unit 112: one side frame
120: second side panel unit 122: other side frame
130: Lower panel unit 140: Upper panel unit
150: Inner supporter 151: Inner lower beam
152: Inner vertical beam 153: Inner upper beam
170: Installation guide 171: Mounting beam
172: Side plate 173: Seating protrusion
174: first seating groove 175: second seating groove
176: Support pin 177: Reinforcement bar
178: Installation groove

Claims (6)

A body including a lower panel unit connecting one side of the opposing first side panel unit and the second side panel unit, and an upper panel unit connecting the other side of the first side panel unit and the second side panel unit; a plurality of inner supports spaced apart from each other by a set distance between the first side panel unit and the second side panel unit; Shelves on which both sides are fitted to the neighboring inner supports; And an installation guide that guides the installation by fitting and connecting both sides of each of the shelves,
The inner supporter includes a plurality of inner vertical beams disposed between the first side panel unit and the second side panel unit, and both sides are connected to and supported by the body,
The installation guide part is fixedly connected to at least one of one circumferential surface and the other circumferential surface of the circumferential surface of the inner vertical beam, and is disposed in plural pieces along the axial direction of the inner vertical beam, so that the corresponding shelf A supporting beam supporting the edge of the relevant side; A side plate supported on each of the mounting beams or on a specific mounting beam and assembled and connected to the corresponding inner vertical beam; Seating protrusions extending from both sides of the shelf; A first seating groove portion continuously recessed along the axial direction of the corresponding mounting beam to seat the side plate; a second seating groove portion continuously recessed along the axial direction of the corresponding mounting beam and seating the corresponding seating protrusion; And a support pin provided on the mounting beam to support the side plate and the seating protrusion respectively seated in the first and second seating grooves formed on the mounting beam,
The side plate forms a hole, and the seating protrusion forms a supporting groove open downward, so that the support pin is inserted into the corresponding hole of the side plate, and the supporting groove is located within the corresponding second seating groove. Assembled furniture for easy installation of shelves, characterized in that it accommodates the exposed support pins.
delete delete delete According to clause 1,
Prefabricated furniture that is easy to install a shelf, characterized in that the adjacent mounting beams are connected to a reinforcement bar to support and reinforce the shelf.
According to clause 1,
The neighboring inner vertical beams are connected to horizontal beams,
The shelf includes a first shelf provided on one side of each of the horizontal beams; And a second shelf provided on the other side of the corresponding horizontal beam,
The first shelf is mounted on the corresponding horizontal beam by forming first mounting brackets on edges other than the edge mounted on the corresponding mounting beam,
The second shelf is a prefabricated furniture that is easy to install, characterized in that the second shelf is mounted on the corresponding horizontal beam by forming second mounting brackets on the remaining edges excluding the edge mounted on the corresponding mounting beam.

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