JP2009005815A - Assembled chair made of corrugated paper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair made of corrugated paper, which can be quickly and easily assembled even in a disaster or the like while securing such strength that it is not destroyed even when used by an adult. <P>SOLUTION: In the assembled chair made of the corrugated paper, in which a leg part Z has an integrated parallel cross structure 100 supporting a seat surface part X and a backrest part Y, and the seat surface part X and the backrest part Y are formed by covering the parallel cross structure 100 with an outer surface member 60, required strength is secured by turning a part where loads are to be applied to the integrated parallel cross structure, and it is easily assembled for a short period of time by using the same shape components, turning the parallel cross structure to a simple structure, and making it possible to crush it. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cardboard assembly-type chair.

In the event of a disaster such as a large-scale earthquake, in the case of being forced to evacuate at a gymnasium or the like, there are often no inconveniences such as living directly sitting on the floor because there is no chair. Obviously, older people and children with weak bodies are often harsh to sit on a hard floor, even for healthy people, depending on the season.
However, since it takes power to bring a chair used at home or the like, it is difficult to secure a chair for all the elderly, especially in an area where there are many victims.
In addition, pipe chairs and camping chairs that are donated or brought in for disaster relief are unnecessary after evacuation, so they are treated as oversized garbage and cause environmental problems when disposed.

Thus, a cardboard chair is convenient. However, a chair using a conventional paperboard or the like as in Patent Document 1 has a drawback that even if it is easy to assemble, it is not stable and easily broken.
Also, since it is assumed that it will be discarded immediately, there are problems such as not pursuing much design and sitting comfort.
Japanese Patent Laid-Open No. 2001-190354

Conversely, for daily use as furniture, there are chairs of Patent Document 2 and sofas of Patent Document 3 that emphasize strength, design, and functionality, but these are often complex structures and require a relatively long time for assembly. In addition, the number of parts is increased and the cost is likely to increase.
Japanese Patent Application No. 2006-152163 Japanese Patent Application No. 2006-152188

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cardboard chair that can be assembled quickly and easily in the event of a disaster while ensuring strength that does not break even when used by an adult.

The present invention relates to a corrugated assembling chair composed of a seat surface portion, a backrest portion, and a leg portion.
The leg portion is composed of an integral cross beam structure that supports the seat surface portion and the backrest portion,
The problem is solved by a corrugated cardboard assembly-type chair in which the seat surface portion and the backrest portion are formed by covering the well structure with an outer surface member.

Since the corrugated cardboard assembling chair of the present invention has a relatively simple structure, even a person who assembles for the first time can easily assemble it in a relatively short time. In addition, since the cross-girder structure can be crushed, it can be transported flat after the cross-girder part is assembled at the factory, so there is an advantage that it is not bulky. There is an effect that it can be easily assembled in time.
In addition, since the load is applied to the integrated cross beam structure, the force is dispersed and supported, so that the strength is also guaranteed.
In addition, since no metal or plastic is used for fixing each member, it is environmentally friendly and can be discarded as it is when it becomes unnecessary.

  In addition, by using a lock member at the connecting portion of the two outer surface members that form the seat surface portion and the backrest portion, both can be securely fixed by its elasticity, and disassembly after use is facilitated. . This lock member also has the effect of increasing the strength of the cross beam structure.

  Hereinafter, embodiments of the present invention will be described. However, the present invention is not limited to these embodiments.

In the embodiment of the present invention, the leg portion is composed of an integral cross-girder structure that supports the seat surface portion and the backrest portion, and as an outer surface member that covers the cross-girder structure, a seat surface member / backrest member (and if necessary) Bottom plate member), and the lock member prevents the seat member and the backrest member from coming off.
Moreover, each member is mutually fixed by the method of the adhesion | attachment by an adhesive agent, the insertion to the insertion hole of an insertion piece, or the meshing of notches.

1 is a perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of a well structure 100 inside the embodiment, and FIGS. 3 to 9 are development views of each member.
In addition, what is shown is one set for each member for convenience of explanation, but three sets of cross-girder members D are used, and one seat surface member / backrest member of the same shape is used. .

First, the cross girder structure 100 is formed by combining a plurality of cross girder members in a cylindrical shape.
The cross beam member A (10) is fold-folded at the folding lines 17 and 18, respectively, so that the surfaces 10a and 10b face each other. Then, the two cross-girder members A are combined with the cut portions thereof facing upward, and bonded so that the end portions of the surfaces 10a partially overlap so that the cut portions 13a and 14a do not overlap. Similarly, the end portions of the surfaces 10b are bonded so that the cut portions 13b and 14b do not overlap each other. Thereby, the cross beam member A is made into a cylindrical shape.
In the same manner, the cross beam member B (20) and the cross beam member C (30) are also formed into a cylindrical shape.

  The cross beam member D (40) is also the same in that it is cylindrical, but in this embodiment, the cross beam member D (40) is bonded at a position different from other cross beam members. A pair of cross-girder members D (40) are valley-folded at fold lines 47 and 48, respectively, and are bonded so that the surfaces 40a and 40b are exactly overlapped with the cut portions facing down to form a cylindrical shape. In the present embodiment, a total of three sets of cylindrical girder members D are used.

Next, the cylindrical girder members A and C are arranged in parallel so that the surfaces 10a and 20a and 30a face the front, and the surfaces 10b and 20a, 20b and 30a face each other, and the notches 11a, 11b, 21a, 21b, 31a and 31b are arranged in a straight line. Further, the cut portion 41 of the cylindrical well member D is cut into the cut portions 11a and 12a, the cut portion 42 is cut into the cut portions 11b and 12b, and the cut portion 43 is cut into the cut portions 21a and 22a. 44 is engaged with the notches 21b and 22b, the notch 45 is engaged with the notches 31a and 32a, and the notch 46 is engaged with the notches 31b and 32b.
Similarly, for the second cylindrical well member D, the cut portion 41 is formed in the cut portions 13a and 14a, the cut portion 42 is formed in the cut portions 13b and 14b, and the cut portion 43 is formed in the cut portions 23a and 14a. 24a, the notch 44 is engaged with the notches 23b and 24b, the notch 45 is engaged with the notches 33a and 34a, and the notch 46 is engaged with the notches 33b and 34b.
The remaining cylindrical well members D are meshed in the same manner.
Thereby, the cross beam structure 100 of FIG. 2 is completed. This cross-girder structure 100 is an integral cross-girder structure in which a leg portion Z supports a seat surface portion X and a backrest portion Y.
In addition, since this cross-girder structure 100 is flattened when it is crushed obliquely, it does not take up space for storage and transportation, and it only has to be restored to its original shape at the site. Is possible.

  In addition, the cross-girder structure 100 of the present embodiment is provided with an inclination upward from the waist part to the knee part in order to improve the sitting comfort, so that A closer to the knee part is higher than the cross-girder member B. However, when mass production is required, the shape of the cross-girder members A and B can be made the same by eliminating the inclination of the cross-girder member C from the waist to the knee portion. Can respond.

Below, attachment of an outer surface member is demonstrated.
First, the outer surface member E (60) of FIG. 7 is folded along one line, all of which are valley-folded, and the other sheet is all mountain-folded, and the protruding portions 76 of the respective side surfaces are bonded to the folded surface 75.
Insert the notches 61 and 66 of the surface 68 of the outer surface portion E (seat surface member) into a mountain fold into the notch 50 of the cross-girder member D, and tilt to the knee side so that the surface 75 becomes the seat surface. Then, the protruding portion 74 of the surface 73 is inserted into the insertion hole 49 c of the cross beam member D.
In this way, the seat surface portion X is formed.

Similarly, the notches 61 and 66 of the surface 68 of the outer surface member E (backrest member) folded in the valley are meshed with the notches 50 of the cross member D in which the seat member has already been inserted, and the surface 75 Tilt to the back so that you are lying. Then, the protruding portion 74 of the surface 73 is inserted into the insertion hole 49d of the cross beam member D.
In this way, the backrest portion Y is formed.

Next, the lock member (80) in FIG. 8 is turned into a mountain fold, and the notches 81 to 86 are connected to the seat member (outer member E) and the backrest member (outer member E) by the cross member D. It inserts so that it may mesh with the notch part 50.
This makes it difficult for the seating surface member and the backrest member to come out of the notched portion 50 of the cross beam member D by the elastic repulsive force of the folded lock member (80), so that the seating surface member and the backrest member are securely Fixed.

Finally, the bottom plate member (90) of FIG. 9 is valley-folded with a fold line, and the protruding portion 92 of the surface 91 is inserted into the insertion hole 49a of the cross beam member D in a state where the surface 95 is in contact with the bottom of the cross beam structure, The protruding portion 92 ′ is similarly inserted into the insertion hole 49 ′. Further, the protruding portion 94 of the surface 93 is inserted into the insertion hole 19b of the cross beam member A, the insertion holes 29a and 29b of the cross beam member B, and the insertion hole 39a of the cross beam member C, and the same applies to the protruding portion 94 ′. .
Since the front plate, the side plate, and the back plate are fixed by the bottom plate member (90), the cross beam structure 100 is reinforced so as not to be distorted. In addition, the cross-girder structure 100 can be prevented from directly touching and damaging the floor or damaging the floor.
As described above, the corrugated cardboard assembly-type chair of this embodiment is completed (FIG. 1).

As described above, the assembling chair made of corrugated cardboard according to the present invention secures necessary strength by providing an integral cross-girder structure (and a lock member if necessary), and further reduces the number of parts with a simple structure. By minimizing it as much as possible, it became possible to provide a corrugated cardboard assembling chair that facilitated assembly in a short time.
Needless to say, detailed points such as the number of each member are not limited to those illustrated and described above.

The perspective view of the embodiment of the present invention. The perspective view of the cross beam structure in the inside of the embodiment of the present invention. The expanded view of the cross beam member A of embodiment of this invention. The expanded view of the cross beam member B of embodiment of this invention. The expanded view of the cross beam member C of embodiment of this invention. The expanded view of the cross beam member D of embodiment of this invention. The expanded view of the outer surface member of embodiment of this invention. The expanded view of the locking member of embodiment of this invention. The expanded view of the baseplate member of embodiment of this invention.

Explanation of symbols

10: Cross-girder member A (cross-girder structure)
20: Cross-girder member B (cross-girder structure)
30: Cross beam member C (cross beam structure)
40: Cross-girder member D (cross-girder structure)
60: External member E
80: Lock member 90: Bottom plate member 100: Cross girder structure X: Seat surface portion Y: Backrest portion Z: Leg portion

Claims (5)

In an assembling chair made of cardboard consisting of a seat surface part, a backrest part and a leg part,
The leg portion is composed of an integral cross beam structure that supports the seat surface portion and the backrest portion,
The seat surface part and the backrest part are formed by covering the well structure with an outer surface member,
Corrugated cardboard assembly chair.   A lock member using an elastic repulsive force caused by folding is inserted into a connecting portion between the outer surface member forming the seat surface portion and the outer surface member forming the backrest portion, which is meshed with the well beam structure. A corrugated cardboard assembly-type chair according to claim 1.   The corrugated cardboard assembly-type chair according to claim 2, wherein the outer surface member forming the seat surface portion and the outer surface member forming the backrest portion have the same shape.   The corrugated cardboard assembly-type chair according to any one of claims 1 to 3, wherein a bottom plate member is provided at the bottom of the well structure.   The corrugated cardboard assembly-type chair according to any one of claims 1 to 4, wherein an inclination is provided upward from the waist portion to the knee portion of the cross beam structure.

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