Background Art Furniture installed in the room of a building, which is generally used for putting or displaying various kinds of things and goods on or in, is divided into wood furniture and iron furniture. The wood and iron furniture is mostly used in the house or office. Recently, buying the wood furniture is more popular than that the iron furniture.

By the way, the wood furniture is made by using particle board (PB) or a medium density fiberboard (MDF), in which formaldehyde and phenol that are harmful to human bodies are contained. This causes the room of the house or office using the wood furniture to be contaminated with the harmful material emitted from the wood furniture. In particular, the wood furniture is not so durable that it reaches its maximum life, which causes the economical loss in the cost buying the furniture. Additionally, if the wood furniture that has done its time would be burnt, it could emit the noxious materials to the human bodies that contaminate the air.

To prevent the contamination with the noxious materials in the air, great concern is at present increasing in using iron furniture having the following

advantages: First, the iron furniture gives a very slight affect to the air of the room when compared with the wood furniture; Second, it can be recycled; and Third, in case of wasting, it does not give much harm to the environment.

However, most of the iron furniture is made of a cold rolled steel plate having a high specific gravity, which causes the cost of raw materials considerably to increase. Of course, additional manufacturing equipments should be required and in case the iron furniture is done away with, its raw material cost can't be all withdrawn. In addition, the iron furniture is too heavy to be connected, delivered and installed.

Disclosure of Invention It is an object of the present invention to provide prefab system furniture using an aluminum panel that is capable of preventing the contamination with harmful materials in the air and room, rendering the manufacturing and connecting processes considerably simple and making the weight of the raw materials substantially light thus to allow the easiness in the delivery and installation.

Still other objects and advantages of the invention will become clear upon review of the following detailed description in conjunction with the appended drawings.

To accomplish this and other objects of the present invention, there is provided prefab system furniture being of a shape of a generally square rack on its outer periphery, which includes: an aluminum panel molded in a predetermined width in an extruding process to be cut into a plurality of panels in an arbitrary length, the plurality of panels being connected in every direction; and a connecting

member for connecting the left and right sides of the plurality of panels in a straight line or in a perpendicular direction to each other.

Brief Description of the Drawings Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. 1 is a perspective view of an aluminum panel in the prefab system furniture according to the present invention; FIG. 2 is a perspective view of the connecting member in the prefab system furniture according to the present invention; FIG. 3 is a separated perspective view of the aluminum panels connected perpendicularly to each other in the prefab system furniture according to the present invention; FIG. 4 is a top view of the aluminum panels of FIG. 3; FIG. 5 is a sectional view of the part"B"of FIG. 4; FIG. 6 is a sectional view of the part"C"of FIG. 4; and FIG. 7 is a perspective view of the prefab system furniture after connection of the aluminum panels.

Best Mode for Carrying Out the Invention The following detailed description is of the best mode or modes of the invention presently contemplated. Such description is not intended to be

understood in a limiting sense, but to be an example of the invention presented solely for illustration thereof, and by reference to which in connection with the following description and the accompanying drawings one skilled in the art may be advised of the advantages and construction of the invention.

FIG. 1 is a perspective view of an aluminum panel in the prefab system furniture according to the present invention, and FIG. 2 is a perspective view of the connecting member in the prefab system furniture according to the present invention.

As shown, prefab system furniture according to the present invention is provided with an aluminum panel 10 connected in its every direction with other aluminum panels and a connecting member 20 for connecting the left and right sides of the aluminum panel 10 in a straight line and in a perpendicular direction to each other.

In more detail, the panel 10 is provided with a body 11 that is molded in an extruding process with aluminum Al having specific gravity lower by about one- third than iron Fe to thereby take a substantially rectangular shape having a predetermined width. The body 11 has a section 12 that is closed perpendicularly on the one side thereof and a rail 13 on the other sides thereof. The rail 13 is used for extension of the width with the connection with the section 12 of the body 11 of another panel 10 or used for selective fitting to the outside frame of, for example, a fixed cabinet with the connection with the frames.

In addition, the panel 10 is provided with coupling grooves 14 that are spaced at the same intervals between the section 12 closed of the body 11 and the other side of the body 11 with the rail 13 thereon, in manner to be formed eccentrically to one side face and extended to be passed along the length direction.

Each of the coupling grooves 14 is processed with a tap having a predetermined depth on the both ends thereof, into which a screw is coupled. Each of the coupling grooves 14 is coupled integrally with the both faces of the body 10 by means of a rib 15.

The panel 10 is also provided with a coupling hole 16 with a tapped hole into which a screw is coupled inside or outside, at spaced positions at the same intervals to pass perpendicularly through the center of the coupling groove 14 connected through the rib 15.

The connecting member 20 is provided with a bar body 21 that is made by extruding aluminum Al to take a generally square shape having the same thickness and four sides as the body 11 of the panel 10. The connecting member 20 is provided with a first fixing hole 22 and a second fixing hole 23 that are adapted to be passed through the bar body 21 in such a manner that the first fixing hole 22 is formed eccentrically to the inside at the upper and down sides thereof and the second fixing hole 23 is formed eccentrically to the upside at the left and right sides, at the positions corresponding to the coupling grooves 14 on the other sides relative to the reference face thereof. On the front end of the first fixing hole 22 is provided a bolt head receiving groove 22a in a relatively deep depth and on the front end of the second fixing hole 23 is provided a bolt head receiving groove 23a in a relatively slight depth, such that the bolts that are inserted into the bolt head receiving groove 22a and the bolt head receiving groove 23a aren't interfered with each other.

Next, an explanation of the coupling process of the prefab system furniture having a shape of a generally square rack by using the panel 10 and the connecting member 20 will be in detail described.

The height and width of the furniture are first determined and the panel 10 and the connecting member 20 are then cut based upon the determined length.

The depth of the furniture is determined according to the width corresponding to the number of the panels 10 determined. According to the preferred embodiment of the present invention, the depth of the furniture is same as the width of one panel 10.

The section 12 closed of the panel 10 corresponds to the one side section of another panel 10, and after the center of the first fixing hole 22 corresponds to that of the coupling groove 14, a first fixing bolt 31 having a relatively short length is inserted into the first fixing hole 22 and then coupled to the coupling groove 14 of the panel 10. After the coupling to the coupling groove 14, a setscrew 33 is coupled to the coupling groove 16 crossed perpendicularly to the coupling groove 14 in communication with the coupling groove 14.

In the same process as mentioned above, the panel 10 is coupled with the connecting member 20a at the bottom end thereof and is then laid down stably.

As shown in FIG. 6, the coupling groove 16 that is formed on the center of the one side plate panel 10 is provided on the inside thereof with a connecting pin 34 which has a screw only on the one side in manner to be protruded horizontally.

The protruded portion of the connecting pin 34 is inserted into the coupling groove 14 formed on the partition panel lOa and then, the setscrew 33 is coupled to the coupling hole 16 perpendicularly to communicate with the coupling groove 14 of the partition panel 1 Oa and fixed by means of the connecting pin 34.

Subsequently to the coupling, the upper and lower plate panels lOb and lOc correspond on the inner faces of the connecting members 20 and 20a coupled on the upper and lower sections of the one side plate panel 10, such that they are

perpendicular to the one side plate panel 10. After that, as shown in FIG. 5, the second fixing bolt 32 having the relatively long length is inserted through the second fixing hole 23 of the connecting member 20 and coupled to the coupling grooves 14 of the panels lOb and lOc, respectively. Next, the setscrew 33 is coupled to the coupling hole 16 perpendicularly to communicate with the coupling groove 14, and the coupling is rigidly fixed by means of the second fixing bolt 32.

When the one side plate panel 10, the partition panel 10a and the upper and lower plate panels lOb and lOc are connected on their one sides, the other side plate panel lOd coupled with the connecting members 20b and 20c on the upper and lower ends thereof corresponds to the other side ends of the partition panel 1 Oa and the upper and lower plate panels lOb and lOc and is thus connected therewith by using the first and second fixing bolts 31 and 32 and the setscrew 33 in the same process as the above.

The furniture according to the present invention, which is constructed by coupling the both side plate panels and the upper and lower plate panels, as shown in FIG. 7, is closed by contacting the surface of the wall at the back portion thereof and is opened at the front portion thereof.

On the other hand, the back surface of the furniture may be closed by using a substantially thin aluminum plate and the font portion opened may be opened or closed by using a door with the panel and connecting member coupled to each other that is coupled by a hinge on the one side thereof.

The furniture obtained by the above-mentioned coupling process has been described with reference to the specific embodiment, but in case where the length of the panel and the number of widths thereof are increased, it may be applied to all kinds of furniture being of a shape of a generally square rack such as, for

example, decoration cabinets, desks, receiving cabinets, bed frames, decoration cabinets for electronic products, stationary drawers and so on.

Industrial Applicability As set forth in the foregoing, prefab system furniture according to the present invention is provided with an aluminum panel molded in a predetermined width in an extruding process to be cut into a plurality of panels in an arbitrary length, the plurality of panels being connected in every direction and a connecting member for connecting the left and right sides of each of the plurality of panels in a straight line or in a perpendicular direction to each other, thereby preventing the contamination with harmful materials in the air and room, rendering the manufacturing and connecting processes considerably simple, making the weight of the materials substantially light thus to allow the easiness in the delivery and installation, using the raw material at a lower expense when compared with the cold rolled steel plate and allowing the increase of the withdrawing cost upon the waste thus to improve an economical effect.