KR20210031441A - Chair - Google Patents

Abstract

Provided is a chair, where an integrated seat plate configured in a three-dimensional shape by overlapping a plurality of sheets of wooden plywood, a backrest unit, and a steel frame are easily coupled or separated by fixing hardware, an amount of wood is minimized to reduce weight of the chair, and a structural portion is made of a steel material, so that the chair can be easily handled and has excellent movability. The chair comprises: the seat plate and the backrest unit integrated to have the three-dimensional shape by overlapping the plurality of sheets of the wooden plywood and having a hole; a steel frame supporting the seat plate and the backrest unit; and the fixing hardware inserted into the hole to couple the seat plate and the backrest unit to the steel frame.

Description

Chair {CHAIR}

The present invention relates to a chair.

In general, furniture such as chairs has been widely used for a long time. Chairs made using wooden plywood have been developed in various shapes for a long time and are widely used. Currently, it is designed using a computer and manufactured by machine-cutting and overlapping wood plywood. This manufacturing method has also become common, and now a new type of design is required. The characteristics of chairs manufactured in the existing method are heavy or inconvenient to move. This is because a lot of plywood must be used in order to maintain the structural shape with only wood.

(wo)2017046807, Application No./Date:pct /IL2016/051035(2016.09.18)

inter net:ARCH20 .com -betula chair /apical reformcal

In order to solve the problems of the prior art, the present invention is capable of easily combining or separating the integrated seat plate and backrest unit and the steel frame configured in a three-dimensional shape by overlapping a plurality of wooden plywood, and minimizing the amount of wood to reduce the weight. The purpose of this is to provide a chair with excellent mobility and convenience by using a reduced and structural part of steel.

The chair according to the present invention comprises a seat plate and a back part which are integrally configured to have a three-dimensional shape by overlapping a plurality of wooden plywood sheets and formed with holes; A steel frame supporting the seat plate and the backrest; And a fixing hardware inserted into the hole to couple the seat plate and the backrest to the steel frame.

The iron frame includes a pair of front vertical bars; A pair of rear vertical bars; A pair of upper rods; And a pair of lower rods, wherein the steel frame includes a pair of intermediate support rods connecting the pair of front vertical rods and the pair of rear vertical rods in a middle way; A front engaging rod for connecting the pair of front vertical rods to each other and restricting downward rotation of the seat plate; And a rear locking rod interconnecting the pair of upper rods and restricting rear rotation of the backrest portion, wherein the fixing hardware may be coupled to the pair of intermediate support rods.

The fixing hardware has a first thread formed on the outer circumferential surfaces of both ends, the pipe inserted into the hole; A pair of first nuts each screwed to the first thread of the pipe; A pair of first washers respectively coupled between the pipe and the pair of first nuts; A round bar having a second thread formed on the outer circumferential surfaces of both ends, passing through the pipe and having both ends supported by the pair of intermediate support bars; A pair of second nuts each having one end screwed to the second thread of the round bar; And a pair of second washers respectively coupled between the round bar and the pair of second nuts.

In the present invention, as a method of manufacturing a chair using birch plywood, it has been developed and used in various shapes in the past. By differentiating it, we sought a method of manufacturing technology that makes a chair with excellent mobility and convenience. Therefore, by designing a method of connecting steel structures that meet these functions and can achieve diversification of form, it is more practical and user's convenience, and a chair that looks beautiful is designed to improve the quality of life.

Specifically, the seat plate and the backrest part and the steel frame, which are variously made wooden parts by fixing hardware, can be easily combined or separated separately, and the weight is reduced to make it easy to manage and provide mobility. The main purpose is to make a product with excellent design and use it widely with the proper configuration of wood and steel frames, as it can be combined and separated more easily and freely so that it is easy to move, and it can be stored and used freely. Therefore, the present invention provides a new structure for the currently used chair by overlapping multiple sheets of wood plywood and creates a structural new coupling method by appropriate use of a steel frame, so that it is easy to carry, and the weight is free from the existing chair. It can contribute to providing a convenient life by creating a newly designed and various and beautiful chairs.

1 is a side view showing a seat plate and a backrest of a chair according to the present invention.
2 is a perspective view of a seat plate and a back portion shown in FIG. 1.
3 is a side view of a chair according to the present invention.
4 is a plan view showing a state in which the seat plate and the backrest shown in FIGS. 1 and 2 are coupled to a steel frame by a fixing hardware
5 is an enlarged view showing a connection relationship between the steel frame and the fixed hardware shown in FIG. 4.
6 is an exploded view showing the fixing hardware shown in FIGS. 4 and 5.

In the present invention, the plywood is cut as shown in FIG. 1 and then stacked together to form a chair to have a partial three-dimensional shape as shown in FIG. 2 and processed by manufacturing and combining the steel frame 100 as shown in FIG. 3. Differentiating from existing chairs, the functional part of the chair is solved, and the structural part is handled by the steel frame 100 to ensure safety, so that it is designed so that the excellence in form and the functional part can be completely solved. The chair according to the present invention includes a seat plate 12 and a backrest 1, a steel frame 100, and a fixing hardware 200. The seat plate 12 and the backrest part 1 are integrally configured to have a three-dimensional shape by overlapping a plurality of wooden plywood sheets, and a hole 14 is formed. The steel frame 100 supports the seat plate 12 and the backrest portion 1.

The steel frame 100 is manufactured in a rectangular shape as shown in FIG. 3 and is welded to secure structural stability, and the wood and steel frame 100 are manufactured as shown in FIGS. 3 and 4 to facilitate coupling and separation. The iron frame 100 includes a pair of front vertical bars 110; A pair of rear vertical bars 130; A pair of upper rods 120; And a pair of lower rods 140. The iron frame 100 includes a pair of intermediate support rods 170 connecting the pair of front vertical rods 110 and the pair of rear vertical rods 130 in the middle; A front engaging bar 180 connecting the pair of front vertical bars 110 to each other and restricting downward rotation of the seat plate 12; And a rear locking rod 190 for interconnecting the pair of upper rods 120 and limiting the rear rotation of the backrest portion 1.

The fixing hardware 200 is inserted into the hole 14 and coupled to the pair of intermediate support rods 170 to couple the seat plate 12 and the backrest portion 1 to the steel frame 100. The fixing hardware 200 includes a pipe 5, a pair of first nuts 6, a pair of first washers 62, a round bar 7, a pair of second washers 42, and a pair of support portions 8 ). The pipe 5 has first threads 52 formed on the outer circumferential surfaces of both ends, and is inserted into the hole 14. A pair of first nuts 6 are respectively screwed to the first threads 52 of the pipe 5. A pair of first washers 62 are respectively coupled between the pipe 5 and the pair of first nuts 6. The round bar 7 has second threads 72 formed on the outer circumferential surfaces of both ends, and both ends are supported by the pair of intermediate support bars 170 through the pipe 5. One end of the pair of second nuts 4 is respectively screwed to the second thread 72 of the round bar 7. A pair of second washers 42 are respectively coupled between the round bar 7 and the pair of second nuts 4. A pair of support portions 8 support the round bar 7 to be supported by the intermediate support bar 170 of the steel frame 100.

The method of combining the wooden seat plate 1 and the backrest 12 and the steel frame 100 configured as described above includes a pipe 5 in the hole 14 of the wooden part as shown in FIGS. 3 to 5. By inserting and using a connection method that facilitates coupling and separation by the fixing hardware 200. In more detail, as shown in FIG. 6, a structural solution to the fixing method of wood and furniture is made to reduce the load, and at the same time, it is possible to manufacture it so that it is easy to move or store by facilitating coupling and separation.

1: backrest
3: junction section
4: second nut
5: pipe
6: the first nut
7: round bar
8: support
12: seat plate
14: hole
52: first thread
72: second thread
100: steel frame
110: front vertical bar
120: upper rod
130: rear vertical bar
140: lower rod
170: middle support rod
180: front locking bar
190: rear locking bar
200: fixed hardware

Claims (3)

A seat plate 12 and a backrest 1 which are integrally constructed to have a three-dimensional shape by overlapping a plurality of wooden plywood sheets and having a hole 14 formed therein;
A steel frame 100 supporting the seat plate 12 and the backrest 1; And
A chair, characterized in that it comprises a fixing hardware (200) inserted into the hole (14) to couple the seat plate (12) and the backrest (1) to the steel frame (100). The method according to claim 1, wherein the steel frame (100) is a pair of front vertical bars (110); A pair of rear vertical bars 130; A pair of upper rods 120; And a pair of lower rods 140,
The iron frame 100 includes a pair of intermediate support rods 170 connecting the pair of front vertical rods 110 and the pair of rear vertical rods 130 in the middle;
A front engaging bar 180 connecting the pair of front vertical bars 110 to each other and restricting downward rotation of the seat plate 12; And
Further comprising a rear engaging rod 190 for interconnecting the pair of upper rods 120 and limiting the rear rotation of the backrest portion 1,
The fixing hardware 200 is a chair, characterized in that coupled to the pair of intermediate support rods (170). The method according to claim 1 or 2, wherein the fixing hardware 200 is
A pipe 5 having first threads 52 formed on the outer circumferential surfaces of both ends and inserted into the hole 14;
A pair of first nuts (6) each screwed to the first thread (52) of the pipe (5);
A pair of first washers (62) respectively coupled between the pipe (5) and the pair of first nuts (6);
A round bar 7 having second threads 72 formed on the outer circumferential surfaces of both ends, passing through the pipe 5 and supporting both ends of the pair of intermediate support bars 170;
A pair of second nuts (4) each having one end screwed to the second thread (72) of the round bar (7); And
A chair, characterized in that it comprises a pair of second washers (42) respectively coupled between the round bar (7) and the pair of second nuts (4).

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