KR950008837Y1 - Setional chair - Google Patents

Abstract

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Description

Prefab chair

1 is an exploded perspective view showing an embodiment structure of a prefabricated chair according to the present invention.

Figure 2a is a front view showing the structure of an embodiment of a prefabricated chair according to the present invention.

Figure 2b is a side view showing the structure of an embodiment of a prefabricated chair according to the present invention.

Figure 2c is a rear view showing the structure of an embodiment of a prefabricated chair according to the present invention.

3a and 3b is a cross-sectional view taken along the line A-A 'of Figure 2c for showing the state that the perforated film is mounted on the frame of the backrest portion according to the present invention.

* Explanation of symbols for main parts of the drawings

1: flat support frame 1a, 1a: hole

3: cushion 5: front leg

7: back frame 7a: top frame

7b: Lower frame 7c: Left frame

7d: right frame 7e: fixing hole

9: rear support 11: brace

11a: brace fixing piece 11b: brace fastening nut

13a: Front leg fastening bolt 13b: Front leg fastening nut

15a: Bolt for fastening backrest and rear support

15b: Nut for fastening backrest and rear support

17: feldspar fastening screw 19: legs first

21: auxiliary backrest 21a: perforated network for auxiliary backrest

22: rectangular pipe 22a: overlapping outer surface

22b: overlapping inner surface

The present invention relates to a chair used at home, a business place or an office, and more particularly, to a prefabricated chair having a beautiful and comfortable structure.

In general, chairs can be largely divided into legs, feet and backrests. In the case of a chair used in a conventional home, restaurant, or office, the main frame is mainly made of steel or wood, and is comfortable when seated. In order to provide a cushion attached to the upper surface of the main frame of the support portion, the backrest portion was used to install additional auxiliary backrest made of the same material or wood or steel.

However, when the main frame is made of wood, the shape of the auxiliary backrest can be designed freely and beautifully manufactured, but it is not strong.

In addition, when the main frame is made of steel, it is possible to firmly attach the steel auxiliary backrest by welding, but due to the nature of the material, it is very inconvenient to use and the appearance is dirty, and the value of the product is lowered. In the case of using a material such as the main frame and the material does not match, it is impossible to attach directly, and the aesthetics due to disharmony is inferior, and it is inconvenient to sit for a long time when there is a lot of sweat such as summer because of poor ventilation. And impaired durability.

On the other hand, if there is no auxiliary backrest, the manufacturing cost is reduced, but it was very inconvenient to use because it could not support the waist.

Therefore, the present invention has been devised to solve the above problems, to improve the durability by adopting a rigid metal perforated network as an auxiliary backrest in order to provide comfort when sitting, when the perforated network is bound to the main frame of the backrest part The aim is to provide a prefabricated chair with a beautiful appearance using a press technique.

In order to achieve the above object, the present invention provides a cushioning plate which is fastened with a plurality of screws on the upper side of the flat support frame, and provides a predetermined cushion, and a fastening bolt on the front of the flat support frame. A prefabricated chair having a front leg fastened by a nut, the prefabricated chair being joined by a fastening bolt and a nut to the rear side of the flat support frame, which is integrally formed, and its central part protrudes from the upper and lower ends forward by a predetermined distance. It is bent so that the upper frame and the left and right frames on the inner side of the protruding center portion, the perforated network is mounted as an auxiliary backrest, the lower frame and the left and right frames under the protruding center portion perform the rear support function of the chair, the protruding center portion Coupling assistant formed between the two sides of the frame to a predetermined size for coupling with the flat support frame The backrest and the rear side support means which are attached; And a brace means fastened between the lower center of the backrest and the rear support means and the upper end of the front leg to support the supporting force of the rear support means.

In addition, the present invention, in order to achieve the above object, the backrest and the rear support means is provided with the upper frame, the lower frame and the left and right frames, the upper frame, the lower frame and the left and right frames are not closed surface pipe, one side is Comprised of rectangular pipes with overlapping inner surfaces with a predetermined gap in the overlapping outer surface to be opened in an overlapped state, and each of the overlapping inner surface and the overlapping outer surface is pressed by press work with a perforated network inserted therein. It is characterized by including a backrest.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 1 to 3.

1 is an exploded perspective view showing an embodiment structure of the prefabricated chair according to the present invention, Figure 2a is a front view showing an embodiment structure of the prefabricated chair according to the present invention, Figure 2b is a work of the prefabricated chair according to the present invention Embodiment is a side view showing a structure, Figure 2c is a rear view showing an embodiment structure of a prefabricated chair according to the present invention.

In the drawings, 1 is a flat support frame, 1a and 1b are holes for assembly, 3 is a cushion, 5 is a front leg, 7 is a backrest frame, 7a is an upper frame, 7b is a lower frame, 7c is a left frame, 7d is Right frame, 7e is the coupling support, 7f is the fixing hole, 9 is the rear support, 11 is the brace, 11a is the brace fixing piece, 11b is the brace fastening nut, 13a is the front leg fastening bolt, 13b is the front leg fastening nut , 15a shows the back and rear support fastening ball, 15b is the back and rear support fastening nut, 17 is cushion fastening screw, 19 is the leg stopper, 21 is the auxiliary back support.

As shown in the drawings, the prefabricated chair according to the present invention has a number of known cushions 3 which provide a predetermined cushion on the upper side of the metal support frame 1 in order to provide comfort when seating. It is fastened with a screw 19, the front leg 5 is coupled to the front of the flat support frame 1 by a fastening bolt 13a and a nut 13b, the rear side of the flat support frame 1 The backrest (7) and the rear support (9) formed integrally therein are coupled by fastening bolts (15a) and nuts (15b), and between the lower center of the rear support (9) and the upper end of the front leg (5). A brace 11 for fastening the supporting force of the rear support 9 is fastened. In addition, the integrally formed backrest 7 and the rear support 9 are bent to protrude from the upper and lower ends by a predetermined distance toward the front, and the upper frame 7a and the left and right frames 7c, 7d) A perforated net is installed inside the lower back frame 7b and the left and right frames 7c, 7d at the bottom of the protruding center, and a perforated net is installed to make the exterior beautiful. (9), between the two frames between the protruding center portion is provided with a coupling support (7e) of a predetermined size for coupling with the flat support frame (1), the brace in the center of the lower frame (7b) A fixing hole 7f is formed for fastening.

The flat support frame 1 is composed of a frame having a rectangular frame, and the front and rear frames respectively have holes 1a for coupling the front legs 5, the integrally formed backrest 7, and the rear support 9, respectively. It is formed, the height of the front frame is formed slightly higher than the height of the rear frame.

The cushion 3 installed on the upper side of the flat support frame 1 provides a cushion when the user sits down, and tightens a plurality of screws having a predetermined length upward from the bottom of the flat support frame. It is fastened by the zoom, because the height difference between the front and rear frame of the flat support frame (1) is fixedly coupled as low as a predetermined height, giving a sense of stability when sitting.

As shown in the drawing, the front leg 5 is a rectangular metal frame having a predetermined length so as to be perpendicular to both sides, and the upper side of the two frame to combine with the front frame of the flat support frame (1) Connecting assistant is made in one piece. In addition, a brace fixing piece 11a for fixing one side of the brace 11 is integrally attached to the center of the support bracket, and a lower support stopper 19 for protecting the bottom of the chair is provided at the lower ends of the frame. Each is fitted. In addition, holes of the same size are formed in the corresponding position of the connection support (the corresponding position of the hole formed on the front side of the flat support frame 1), so that the user can easily use the bolt 13a and the nut 13b. Can be tightened. At this time, it is preferable to employ a butterfly nut for the user's convenience as the nut (13b).

And, in order to be able to easily couple the integrally formed backrest 7 and the rear support 9 to one side of the flat support frame 1 of the coupling support 7e (of the flat support frame 1) It is preferable to fix the fastening bolt 15a to the corresponding position of the hole formed on the rear side in advance by welding or the like. In addition, the backrest 7 in the integrally formed backrest 7 and the rear support 9 is formed by bending the ergonomics as is known to effectively support the back and back of the seated person can lean comfortably The lower rear support 9 extends to the rear of the lower end so as to perform a leg function stably supporting the chair so that the chair does not fall backward even if the user pushes the body back.

In addition, the brace 11 is inserted into the fixing hole 10 in the center of the lower frame (7b), one side thereof is hooked to the fixing hole in the ring, the other side is connected to the connecting piece (11a) installed in the center of the connection support It is inserted and fixed by a nut to support the supporting force of the rear support (9).

Now, with reference to Figures 3a and 3b, the process of manufacturing the backrest 7 and the rear support 9 formed integrally according to the present invention will be described.

3a and 3b is a cross-sectional view taken along the line A-A 'of Figure 2b for showing the state in which the perforated network is mounted on the frame of the backrest according to the present invention, Figure 3a shows the state before being pressed, FIG. 3b shows the state after the auxiliary backrest perforating network is fastened to the frame through a press work.

In the figure, 21a is an auxiliary back support perforated network, 22 is a rectangular pipe, 22a is an overlapping outer surface, and 22b is an overlapping inner surface, respectively.

As shown in the figure, the integrally formed backrest 7 and the rear support 9 have an upper frame 7a, a lower frame 7b, and left and right frames 7c, 7d made of metal. The frames are folded four times at right angles to an iron plate having a predetermined width and thickness to form a rectangular pipe 22 as shown in the drawing, with a slight gap in the overlapping outer surface 22a, and the overlapping inner surface 22b having a predetermined width. ) Is to be located.

Then, the pipe 22 formed as described above is cut to an appropriate length and arranged at each of the frame positions, and thereafter, a perforated network known for auxiliary backing is provided between the overlapping inner surface 22a and the overlapping outer surface 22b. The respective frames are joined by welding or the like with 21a) inserted therein. Then, the pressing operation is performed to be pressed in the direction of the arrow of FIG. 3a to attach the thin metal perforated network to each frame without welding. The perforated network may be arranged throughout the entire frame from the top frame to the bottom frame, as shown in the drawing, or may be arranged in a couple only in the required position.

In addition, in order to bend the backrest 7 and the rear support 9 as shown in the drawing, a press technique is similarly used. In the present invention, one side that is different from a general closed curved pipe is simply opened in an overlapped state. By using rectangular pipes, deformations such as biting during bending through the press are minimized.

In the present invention, by employing a metal perforated net (also called "speaker net" or "art net") as an auxiliary backrest, the appearance is more beautiful than in the case of conventional cloth, leather, wood, etc. and the durability is significantly improved. In joining this, it is maximized the manufacturing efficiency by installing through welding (pressing about 5 tons) work (welding exclusion).

Therefore, the beam design configured as described above ergonomically raises the backrest, the rear end support provides effective support force, has a predetermined bending property, and employs a well-known perforated network made of a solid metal as an auxiliary backrest, When the durability is improved, and the perforated network is bound to the main frame of the backrest, the appearance is beautiful by using a press technique, and at the same time, it is prefabricated to facilitate storage and transportation.

Claims (3)

A metal flat support frame 1, a cushion 3 fastened with a plurality of screws on the upper side of the flat support frame to provide a predetermined cushion, and a fastening bolt 13a at the front of the flat support frame. In the prefabricated chair having a front leg 5 fastened by the nut 13b), it is coupled to the rear side of the flat support frame 1 by a fastening bolt 15a and a nut 15b, It is formed integrally, and its center is bent to protrude from the upper and lower ends by a predetermined distance to the front, and the perforated network is known inside the upper frame (7a) and the left and right frames (7c, 7d) above the protruding center portion. 21), and the lower frame 7b and the left and right frames 7c and 7d below the protruding center portion perform the rear support function of the chair, and between the two frames of the protruding center portion and the flat support frame 1. For the combination of Binding bojodae (7e) is attached in the back and the rear side support means is formed of a (7, 9); And a brace means (11) fastened between the lower center of the backrest and the rear support means and the upper end of the front leg to support the supporting force of the rear support means (9). According to claim 1, wherein the backrest and the rear support means (7, 9) is provided with a top frame (7a), a bottom frame (7b) and the left and right frames (7c, 7d), the top frame, the bottom frame and the left and right frames Is not a closed curved pipe, but consists of a rectangular pipe 22 in which an overlapping inner surface 22b is positioned with a predetermined gap in the overlapping outer surface 22a so that one side is simply opened in an overlapped state. A prefabricated chair between the overlapping inner surface 22a and the overlapping outer surface 22b, comprising an auxiliary backrest which is pressed and installed by press work in the state where the perforated network 21a is inserted. The chair according to claim 2, characterized in that the perforated network (21a) provided on the backrest and the rear support means (7, 9) is provided throughout the entire upper frame (7a) to the lower frame (7b).