KR101801228B1 - Sectional table and chair - Google Patents

Abstract

The present invention relates to a prefabricated desk and chair, First and second side plates disposed vertically on the left and right sides of the first and second side plates; an upper plate horizontally assembled on the upper side of the first and second side plates; a rear plate vertically assembled to the rear side of the first and second side plates; A prefabricated desk comprising: Third and fourth side plates vertically arranged on the left and right sides of the first and second side plates; a seat plate horizontally assembled on the upper side of the third and fourth side plates; And a backrest plate vertically assembled to the rear side of the third and fourth side plates.
According to the present invention, a main part of a desk and a chair can be made of a plate material and can be firmly assembled using a minimum wedge, so that the user can quickly assemble the desk or chair in a field where the user wants to use the chair.

Description

Prefabricated desk and chair {SECTIONAL TABLE AND CHAIR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled desk and a chair, and more particularly, to a prefabricated desk and chair capable of minimizing the number of parts constituting a desk and a chair, allowing a user to easily assemble them, .

In general, desks and chairs are furniture used in schools, academies or homes, and they are firmly connected to the metal frame by means of fastening means such as screws and are delivered according to the order of the consumer.

However, the desk and the chair have a disadvantage in that a large amount of labor is required for assembling the furniture, and a large amount of the desk and chairs are loaded on the cargo truck as the assembly is completed.

Recently, a lot of furniture such as a desk or a chair has been put on the market where a user assembles a part constituting a desk or a chair directly on the spot.

Open No. 10-2012-0040332 has been proposed as an example of such a prefabricated furniture. This relates to a rest chair for a golf driving range, and is advantageous in that it can be assembled on the spot and can be easily replaced even if it is partially broken.

However, since the chair of Reference 1 has to be fastened with a large number of fixing bolts in combination with the hangers and the billboards, the table boards, the table supports, the cup supports, etc., assembly work is troublesome and takes a lot of time, There is a problem that it is not suitable for directly assembling the chair.

On the other hand, as an example of another prefabricated furniture, Registration No. 20-0427977 has been proposed. The present invention relates to a prefabricated chair, and a prefabricated chair is proposed in which an entire original plate is partitioned and each boundary portion of the partitioned portion is folded and assembled to form a seat portion and a back portion so as to sit comfortably in various events or outdoor activities .

The seat 100 includes a seat plate 110 and a backrest 120. The seat plate 110 and the backrest 120 are integrally formed by folding and assembling a single plate of paper or synthetic resin, It is possible to use it for use activity but it is structurally unstable and it is difficult to use for a long period of time in a state where it is assembled in a home or office.

Reference 1: Published patent application No. 10-2012-0040332 Reference 2: Registration No. 20-0427977

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a desk and a chair which can be easily assembled without using a specialized assembly tool such as a screwdriver Which has a purpose of providing a prefabricated desk and chair.

It is another object of the present invention to provide a prefabricated desk and a chair which can minimize the number of assembly parts required to manufacture a prefabricated desk and chair, thereby simplifying the assembling work and maintaining a rigid assembled state.

In order to solve such a technical problem,

First and second side plates disposed vertically side by side on the left and right sides to serve as legs of a desk; an upper plate horizontally assembled on the upper side of the first and second side plates; And a rear plate assembled vertically.

The first and second side plates are provided with first and second wedges for fixing the rear plate at left and right sides.

The first and second side plates include first and second horizontal support grooves for horizontally supporting left and right sides of the upper plate, first and second vertical support members for supporting the left and right sides of the rear plate, Wherein the first and second vertical support grooves are formed horizontally with first and second insertion grooves into which the first and second wedges are inserted; The upper plate has first and second horizontal fitting grooves formed in front of the first and second horizontal supporting grooves of the first and second side plates at front ends of the left and right sides, respectively; The rear plate has first and second vertical fitting grooves formed in the first and second vertical fitting grooves of the first and second side plates at both left and right lower ends thereof, And the first and second fixing grooves are formed horizontally in the first and second fixing grooves.

When the first and second vertical fitting grooves of the rear plate are inserted into the first and second vertical holding grooves of the first and second side plates, the first and second vertical fitting grooves are formed in the first and second insertion grooves of the first and second side plates, And the first and second fixing grooves of the rear plate are positioned so that the first and second wedges are fitted together.

The first and second wedges may have first and second fitting protrusions formed on both sides of the front side of the first and second wedge bodies so that the first and second fitting protrusions are engaged with the first and second wing bodies 1 and the second insertion groove, and the first and second wedge bodies are inserted into the first and second fixing grooves.

The present invention also provides

Third and fourth side plates arranged vertically side by side on the left and right sides so as to serve as legs of the chair, a seat plate horizontally assembled on the upper side of the third and fourth side plates, And a backrest plate vertically assembled to the rear side of the third and fourth side plates.

And third and fourth wedges for fixing the backrest plate on the left and right sides to the third and fourth side plates and fifth and sixth wedges for fixing the bottom plate on the left and right sides to the third and fourth side plates, And a wedge is provided.

At this time, the third and fourth side plates include third and fourth horizontal support grooves for supporting the left and right sides of the seat in the lateral direction on the upper rear side, and third and fourth vertical support members for supporting the left and right sides of the back plate, Third and fourth vertical grooves are formed horizontally in the third and fourth vertical support grooves so as to be engaged with the third and fourth wedges; Third and fourth horizontal fitting grooves which are fitted to the third and fourth horizontal supporting grooves of the third and fourth side plates are formed in front of the left and right front side ends of the left and right side plates; Wherein the backrest plate has third and fourth vertical fitting grooves formed at left and right lower ends thereof to be fitted into the third and fourth vertical supporting grooves of the third and fourth side plates, Third and fourth fixing grooves are formed horizontally in the first and second fixing grooves; When the third and fourth vertical fitting grooves of the back plate are fitted in the third and fourth vertical supporting grooves of the third and fourth side plates, the third and fourth insertion grooves of the third and fourth side plates, The third and fourth fixing grooves of the plate are positioned, and the third and fourth wedges are coupled.

The third and fourth wedges may have third and fourth fitting projections formed on both sides of the front side of the third and fourth wedge bodies so that the third and fourth fitting projections are engaged with the third and fourth wing bodies 3 and the fourth insertion groove, and the third and fourth wedge bodies are inserted into the third and fourth fixing grooves.

In addition, the third and fourth side plates are provided with fifth and sixth horizontal support grooves for supporting the left and right sides of the support plate in the transverse direction at the lower front end, and the fifth and sixth horizontal support grooves are formed at the upper side of the fifth and sixth horizontal support grooves. And fifth and sixth insertion grooves into which the sixth wedge is inserted; Fifth and sixth horizontal fitting grooves that are fitted in the fifth and sixth horizontal supporting grooves of the third and fourth side plates are formed at the left and right rear end portions of the receiving plate in a forward direction; The fifth and sixth horizontal insertion grooves of the support plate are inserted into the fifth and sixth horizontal support grooves of the third and fourth side plates and the fifth and sixth wedges are fitted into the fifth and sixth insertion grooves .

In this case, the fifth and sixth wedges are formed in a shape of a rectangular shape having a cross-sectional area of the front end and a cross-sectional area wider toward the rear end.

According to the present invention, a main part of a desk and a chair can be made of a plate material and can be firmly assembled using a minimum wedge, so that the user can quickly assemble the desk or chair in a field where the user wants to use the chair.

In addition, since the desk and chair according to the present invention do not use fasteners such as screws for assembly, it is possible not only to minimize the damage of the components even when disassembled, but also to prevent the user It is easy to assemble, and it is advantageous in mass production of desks and chairs.

FIG. 1 is a view showing the parts of a prefabricated desk according to the present invention.
FIG. 2 is a view illustrating a plate assembly of a prefabricated desk according to the present invention.
3 is a wedge joining state diagram of the prefabricated desk according to the present invention.
4 is an assembled view of a prefabricated desk according to the present invention.
Fig. 5 is a component diagram of the assembled chair according to the present invention.
6 is a structural view of a plate assembly of the assembled chair according to the present invention.
7 is a wedge joint state view of the assembled chair according to the present invention.
Fig. 8 is a view showing the assembly of the assembled chair according to the present invention.

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

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

FIGS. 1 to 4 are diagrams for explaining a prefabricated desk according to the present invention, and are related to a prefabricated desk having a simple structure and easy assembly.

The prefabricated desk 100 according to the present invention includes first and second side plates 110 and 120 vertically arranged on the left and right sides so as to serve as legs of a desk and upper and lower side plates 110 and 120 disposed above and below the first and second side plates 110 and 120. [ And a rear plate 140 vertically assembled to the rear side of the first and second side plates 110 and 120. [

The first and second wedges 150 and 160 are provided on the first and second side plates 110 and 120 to fix the rear plate 140 on the left and right sides.

Particularly, the upper plate 130 is formed in a letter 'D' shape as a whole, and the rear plate 140 is formed in an alphabet 'E' shape. The first and second side plates 110 and 120 are formed of alphabet 'S' 'And' K ', respectively, so that the user recognizes that the parts are used for assembling the desk (DESK), thereby allowing the user to be interested in assembling the prefabricated desk 100 according to the present invention.

The first and second side plates 110 and 120, the upper plate 130 and the rear plate 140 and the first and second wedges 150 and 160 may be made of a material such as a wood or plywood or MDF. It is also possible to manufacture by molding.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the construction of each part of the assembled desk according to the present invention will be described in detail.

The first and second side plates 110 and 120 include first and second horizontal support grooves 112 and 122 for horizontally supporting the upper and lower sides of the upper plate 130, The first and second vertical support grooves 114 and 124 for supporting the left and right sides are formed to intersect with each other.

In the first and second vertical support grooves 114 and 124 of the first and second side plates 110 and 120, first and second insertion grooves 116 and 126, into which the first and second wedges 150 and 160 are inserted, Is formed.

The upper plate 130 is horizontally installed so that a book can be placed thereon for reading. The front and rear sides of the upper and lower plates 130, First and second horizontal fitting grooves 132, 134 to be fitted in the support grooves 112, 122 are formed forward.

When the first and second horizontal fitting grooves 132 and 134 of the upper plate 130 are inserted into the first and second horizontal supporting grooves 112 and 122 of the first and second side plates 110 and 120, The rear end of the upper plate 130 is connected to the first and second horizontal support grooves 110 and 120 of the first and second side plates 110 and 120 so that the rear plate 140 vertically assembled to the rear side of the first and second side plates 110 and 120 is not interfered during assembly. The depth of the first and second horizontal fitting grooves 132, 134 is designed so that the first and second horizontal fitting grooves 132,

When the rear plate 140 is assembled to the first and second side plates 110 and 120 while the upper plate 130 is assembled to the first and second side plates 110 and 120, The rear end of the upper plate 130 can be supported to prevent the upper plate 130 from being detached and separated.

The rear plate 140 is vertically assembled to the rear side of the first and second side plates 110 and 120 so that the first and second side plates 110 and 120 are fixed to the left and right lower ends of the rear plate 140, First and second vertical fitting grooves 142 and 144 are formed to be fitted into the first and second vertical holding grooves 114 and 124. The first and second vertical fitting grooves 142 and 144 are formed horizontally, The fixing grooves 146 and 148 are formed.

According to this structure, when the first and second vertical fitting grooves 142 and 144 of the rear plate 140 are inserted into the first and second vertical supporting grooves 114 and 124 of the first and second side plates 110 and 120, The first and second fixing grooves 146 and 148 of the rear plate 140 are positioned in the first and second insertion grooves 116 and 126 of the first and second side plates 110 and 120, The second wedges 150 and 160 can be fitted together.

In this case, the first and second wedges 150 and 160 are formed in a fork shape, and first and second fitting protrusions 152 and 162 are formed on the front sides of the first and second wedge bodies 151 and 161, The first and second fitting protrusions 152 and 162 are inserted into the first and second insertion grooves 116 and 126 of the first and second side plates 110 and 120 so that the first and second wedge bodies 151 and 161 are inserted It is possible to prevent the rear plate 140 from being detached and separated from the first and second side plates 110 and 120 by being inserted into the first and second fixing grooves 146 and 148.

The first and second fixing grooves 146 and 148 of the first and second insertion grooves 116 and 126 and the rear plate 140 of the first and second side plates 110 and 120 are inserted into the first and second wedges 150 and 160, It is preferable to fabricate such that it can be assembled in a forced fit manner.

The first and second wedges 150 and 160 are preferably made of wood, but may be made of synthetic resin or metal to improve strength.

Hereinafter, an assembling process of the prefabricated desk according to the present invention will be described with reference to FIGS. 1 to 4. FIG.

First and second horizontal fitting grooves 132 and 134 of the upper plate 130 are formed by horizontally horizontally laying the first and second side plates 110 and 120 horizontally horizontally while keeping the first and second side plates 110 and 120 at regular intervals. Are inserted into the first and second horizontal support grooves 112 and 122 formed on the upper rear side of the first and second side plates 110 and 120, respectively.

When the upper plate 130 is assembled to the first and second side plates 110 and 120 as described above, the rear plate 140 is vertically erected so that the first and second vertical support grooves 110 and 120 of the first and second side plates 110 and 120 The first and second vertical fitting grooves 142 and 144 formed at the left and right lower ends of the rear plate 140 are fitted to the top plate 130 and the rear plate 140 to support the rear end of the top plate 130, 130 from separating.

The first and second fitting protrusions 152 and 162 of the first and second wedges 150 and 160 are inserted into the first and second insertion slots 116 and 126 of the first and second side plates 110 and 120, The first and second wedge bodies 151 and 161 are inserted into the first and second fixing grooves 146 and 148 to prevent the rear plate 140 from being separated from and separated from the first and second side plates 110 and 120 Is completed.

FIGS. 5 to 8 are diagrams for explaining a prefabricated chair according to the present invention, and are related to a prefabricated chair having a simple structure of components and a simple structure.

The assembled chair 200 according to the present invention includes third and fourth side plates 210 and 220 vertically arranged on the left and right sides so as to serve as legs of a chair and upper and lower sides of the third and fourth side plates 210 and 220, A support plate 240 horizontally assembled to a lower front side of the third and fourth side plates 210 and 220 and a support plate 240 vertically installed on the rear side of the third and fourth side plates 210 and 220. [ And a backrest plate 250 to be assembled.

The third and fourth wedges 260 and 270 for fixing the backrest plate 250 to the left and right sides of the third and fourth side plates 210 and 220 and the third and fourth wedges 260 and 270 for fixing the back plate 250 to the third and fourth side plates 210 and 220, 240 and the fifth and sixth wedges 280, 290 for fixing the left and right wedges 240, 240 on the left and right sides.

In particular, the seating plate 230 is formed in an alphabetical letter 'C' shape, the backrest plate 250 is formed in an alphabetical letter 'H' shape, and the third and fourth side plates 210 and 220 are formed of alphabet 'A' 'And' R ', respectively, and the user can recognize that the base plate 240 is formed in an alphabet' I 'shape and used to assemble the chair CHAIR, So that the user can be interested in assembling the chair 200.

The third and fourth side plates 210 and 220, the support plate 240, the seat plate 230, the backrest plate 250 and the third to sixth wedges 260, 270, 280 and 290 may be made of a material such as a wood, However, synthetic resins can be produced by injection molding and, if necessary, made of metal.

Hereinafter, the configuration of each part of the assembled chair according to the present invention will be described in detail.

The third and fourth side plates 210 and 220 include third and fourth horizontal support grooves 212 and 222 for horizontally supporting the left and right sides of the left and right support plates 230 and 230, Third and fourth vertical support grooves 214 and 224 for supporting both the left and right sides are formed to intersect with each other.

The fifth and sixth horizontal support grooves 216 and 226 are formed on the lower front end of the third and fourth side plates 210 and 220 to support the left and right sides of the support plate 240 in the transverse direction.

In this case, the third and fourth vertical support grooves 214 and 224 may be inclined so that the backrest plate 250 can be inclined. The angles of the third and fourth vertical support grooves 214 and 224, It is natural that the present invention belongs to the technical scope of the present invention as far as it can be easily changed by anyone.

The third and fourth vertical grooves 214 and 224 of the third and fourth side plates 210 and 220 are horizontally inserted into the third and fourth insertion grooves 215 and 225 to which the third and fourth wedges 260 and 270 are coupled, .

The left and right side plates 230 and 230 are horizontally installed so that the user can sit on the left and right sides of the left and right sides of the left and right side plates 230 and 230. The left and right sides of the left and right side plates 230 and 230, Second and fourth horizontal fitting grooves 232 and 234 which are fitted in the first and second horizontal fitting grooves 212 and 222 are formed forward.

In this case, when the third and fourth horizontal fitting grooves 232 and 234 of the seat panel 230 are fitted in the third and fourth horizontal support grooves 212 and 222 of the third and fourth side plates 210 and 220, The rear end of the seat plate 230 is connected to the third and fourth horizontal support grooves 210 and 220 of the third and fourth side plates 210 and 220 so as to prevent the backrest plate 250, 212 and 222, the depths of the third and fourth horizontal fitting grooves 232 and 234 are appropriately designed.

When the backrest plate 250 is assembled to the third and fourth side plates 210 and 220 in a state where the left and right side plates 230 and 230 are assembled to the third and fourth side plates 210 and 220, It is possible to support the rear end of the seat 230 to prevent the seat 230 from being detached and separated.

The backrest plate 250 is vertically or slantly assembled to the rear side of the third and fourth side plates 210 and 220. The backrest plate 250 is attached to the left and right lower ends of the backrest plate 250 by the third and fourth side plates 210 and 220, Third and fourth vertical fitting grooves 252 and 254 which are fitted to the third and fourth vertical supporting grooves 214 and 224 of the first and second vertical fitting grooves 252 and 254, The fourth fixing grooves 256 and 258 are formed.

According to this structure, when the third and fourth vertical fitting grooves 252 and 254 of the backrest plate 250 are inserted into the third and fourth vertical supporting grooves 214 and 224 of the third and fourth side plates 210 and 220, The third and fourth fixing grooves 256 and 258 of the backrest plate 250 are positioned in the third and fourth insertion grooves 215 and 225 of the first and second side plates 210 and 220 and the third and fourth insertion grooves 215 and 225, The four wedges 260 and 270 can be coupled in an interference fit.

The third and fourth wedges 260 and 270 are formed in a fork shape and have third and fourth fitting protrusions 262 and 272 projecting to both sides of the front side of the third and fourth wedge bodies 261 and 271, The third and fourth fitting protrusions 262 and 272 are fitted into the third and fourth insertion grooves 215 and 225 of the third and fourth side plates 210 and 220. When the third and fourth fitting protrusions 262 and 272 are inserted deeper, the third and fourth wedge bodies 261 and 271 May be inserted into the third and fourth fixing grooves 256 and 258 to prevent the back plate 250 from separating from the third and fourth side plates 210 and 220.

The third and fourth insertion grooves 215 and 225 of the third and fourth side plates 210 and 220 and the third and fourth fixing grooves 256 and 258 of the backrest plate 250 are engaged with the third and fourth wedges 260 and 270, It is preferable to fabricate such that it can be assembled in a forced fit manner.

The fifth and sixth horizontal support grooves 216 and 226 are formed on the lower front end of the third and fourth side plates 210 and 220 to support the left and right sides of the support plate 240 in the transverse direction. The fifth and sixth insertion grooves 217 and 227 are formed on the upper side of the six horizontal support grooves 216 and 226 so that the fifth and sixth wedges 280 and 290 can be assembled in an interference fit manner.

The support plate 240 is horizontally installed so that the user can put his or her feet on the support plate 240. The left and right rear end portions of the support plate 240 are provided at the rear end portions of the third and fourth side plates 210, The fifth and sixth horizontal fitting grooves 242 and 244 fitted in the grooves 216 and 226 are formed forward.

When the fifth and sixth wedges 280 and 290 are inserted into the fifth and sixth insertion grooves 217 and 227 so as to be downwardly protruded, the fifth and sixth wedges 280 and 290, As shown in Fig.

The fifth and sixth wedges 280 and 290 have a rectangular cross-sectional shape in which the cross-sectional area of the front end portion is narrow and the cross-sectional area increases toward the rear end. When the fifth and sixth wedges 280 and 290 are pushed into the fifth and sixth insertion grooves 217 and 227, And the sixth wedges 280 and 290 are brought into close contact with the upper surface of the support plate 240 and the upper surfaces of the fifth and sixth wedges 280 and 290 are pressed by the fifth and sixth insertion grooves 217 and 227, 5 and sixth wedges 280, 290 can be maintained in a rigid assembled state.

It is preferable that the third to sixth wedges 260, 270, 280, and 290 are made of wood, but they may be made of a synthetic resin material or a metal material to improve the strength.

Hereinafter, the assembling process of the assembled chair according to the present invention will be described with reference to FIGS. 5 to 8. FIG.

First, the third and fourth horizontal fitting grooves 232 and 234 are arranged in the horizontal direction so that the third and fourth side plates 210 and 220 are laid horizontally horizontally and horizontally, And the third and fourth horizontal support grooves 212 and 222 formed on the upper rear side of the fourth side plates 210 and 220.

In the state where the seat panel 230 is assembled to the third and fourth side panels 210 and 220, the support plate 240 is laid down in the lateral direction on the lower front ends of the third and fourth side panels 210 and 220, The grooves 216 and 226 are inserted into the fifth and sixth horizontal support grooves 216 and 226 formed at the lower front ends of the third and fourth side plates 210 and 220. [

The backrest plate 250 is vertically erected so that the third and fourth vertical support grooves 214 and 224 of the third and fourth side plates 210 and 220 are formed at the lower and left ends of the backrest plate 250, Fitting the vertical fitting grooves 252 and 254 to support the front end of the backrest plate 250 so that the rear end of the seat plate 230 is supported to prevent the seat plate 230 from being detached.

The third and fourth fitting protrusions 262 and 272 of the third and fourth wedges 260 and 270 are inserted into the third and fourth insertion slots 215 and 225 of the third and fourth side plates 210 and 220, The third and fourth wedge bodies 261 and 271 are inserted into the third and fourth fixing grooves 256 and 258 to prevent the back plate 250 from separating from the third and fourth side plates 210 and 220.

The fifth and sixth wedges 280 and 290 are laterally inserted into the fifth and sixth insertion grooves 217 and 227 of the third and fourth side plates 210 and 220 so that the assembled state of the support plate 240 can be firmly maintained .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The scope of protection of the present invention should be construed under the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

100: desk 110: first shroud
120: second side plate 130: top plate
140: rear plate 150: first wedge
160: second wedge 200: chair
210: third side plate 220: fourth side plate
230: seat plate 240:
250: backrest plate 260: third wedge
270: fourth wedge 280: fifth wedge
290: 6th wedge

Claims (11)

First and second side plates disposed vertically side by side on the left and right sides to serve as legs of a desk; an upper plate horizontally assembled on the upper side of the first and second side plates; And a rear plate assembled vertically,
And first and second wedges for fixing the rear plate to the left and right sides of the first and second side plates,
The first and second side plates include first and second horizontal support grooves for supporting left and right sides of the upper plate in the horizontal direction on the upper rear side, first and second vertical support grooves for supporting the left and right sides of the rear plate, Wherein the first and second vertical support grooves are formed with first and second insertion grooves horizontally inserted into the first and second wedges;
The upper plate has first and second horizontal fitting grooves formed in front of the first and second horizontal supporting grooves of the first and second side plates at front ends of the left and right sides, respectively;
The rear plate has first and second vertical fitting grooves formed in the first and second vertical fitting grooves of the first and second side plates at both left and right lower ends thereof, Wherein the first and second fixing grooves are formed horizontally in the first and second fixing grooves.
delete delete The method according to claim 1,
When the first and second vertical fitting grooves of the rear plate are inserted into the first and second vertical supporting grooves of the first and second side plates, the first and second insertion grooves of the first and second side plates, The first and second fixing grooves of the first and second fixing wedges are positioned so that the first and second wedges are fitted together.
5. The method of claim 4,
Wherein the first and second wedges are formed with first and second fitting protrusions on both sides of the front side of the first and second wedge bodies so that the first and second fitting protrusions are engaged with the first and second wing bodies of the first and second wing bodies, And the first and second wedge bodies are inserted into the first and second fixing grooves.
Third and fourth side plates arranged vertically side by side on the left and right sides so as to serve as legs of the chair, a seat plate horizontally assembled on the upper side of the third and fourth side plates, And a backrest plate vertically assembled to the rear side of the third and fourth side plates,
Third and fourth wedges for fixing the backrest plate on the left and right sides of the third and fourth side plates and fifth and sixth wedges for fixing the bottom plate on the left and right sides to the third and fourth side plates Respectively,
The third and fourth side plates include third and fourth horizontal support grooves for supporting the left and right sides of the seat in the lateral direction on the upper rear side and third and fourth vertical support grooves for supporting the left and right sides of the back plate, The third and fourth vertical grooves are formed horizontally with third and fourth insertion grooves to which the third and fourth wedges are fastened;
Third and fourth horizontal fitting grooves which are fitted to the third and fourth horizontal supporting grooves of the third and fourth side plates are formed in front of the left and right front side ends of the left and right side plates;
Wherein the backrest plate has third and fourth vertical fitting grooves formed at left and right lower ends thereof to be fitted into the third and fourth vertical supporting grooves of the third and fourth side plates, Third and fourth fixing grooves are formed horizontally in the first and second fixing grooves;
When the third and fourth vertical fitting grooves of the back plate are fitted in the third and fourth vertical supporting grooves of the third and fourth side plates, the third and fourth insertion grooves of the third and fourth side plates, And the third and fourth fixing grooves of the plate are located, and the third and fourth wedges are coupled.
delete delete The method according to claim 6,
The third and fourth wedges are formed with third and fourth fitting protrusions on both sides of the front side of the third and fourth wedge bodies and the third and fourth fitting protrusions are formed on the third and fourth wing bodies of the third and fourth wing bodies, And the third and fourth wedge bodies are inserted into the third and fourth fixing grooves.
The method according to claim 6,
Fifth and sixth horizontal support grooves for supporting the left and right sides of the support plate in the transverse direction are formed on the lower front end of the third and fourth side plates and the fifth and sixth horizontal support grooves are formed on the upper sides of the fifth and sixth horizontal support grooves, Fifth and sixth insertion grooves into which the six wedges are inserted are formed;
Fifth and sixth horizontal fitting grooves that are fitted in the fifth and sixth horizontal supporting grooves of the third and fourth side plates are formed at the left and right rear end portions of the receiving plate in a forward direction;
The fifth and sixth horizontal insertion grooves of the support plate are inserted into the fifth and sixth horizontal support grooves of the third and fourth side plates and the fifth and sixth wedges are fitted into the fifth and sixth insertion grooves Wherein the chair comprises:
11. The method of claim 10,
Wherein the fifth and sixth wedges are formed in a shape of a rectangle having a cross-sectional area of a front end portion and a wider sectional area toward a rear end.

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