JP2013526305A - Folding chair - Google Patents

Abstract

【Task】
In a folded state and an unfolded state, a V-shaped shape that is successively connected to a transverse cut surface appears, and side surfaces on both sides of the top of the V-shape form support legs. A folded chair having a support portion that basically forms a flat plate shape in a folded state and a lid portion at least one end of which is connected to one of the support portions. The folding chair of the present invention is convenient to carry, has a simple structure, and can meet the daily demands of people very well.

Description

  The present invention relates to the field of chairs, and specifically to a folding chair.

  When people go out, they need to sit well and take breaks or handle some sort of situation. However, in public places, it is not possible to provide a chair where people who come and go everywhere can rest and rest, so there is a need for a portable chair that allows people to sit and rest whenever and wherever they need it. Also, sometimes we want to have a chair that can be used in the house where there is some demand, and that is not limited by space and is convenient to move.

  An object of the present invention is to provide a folding chair that is convenient for carrying and can solve the above-mentioned technical problems that are lightweight and compact.

  For the above purpose, the present invention has a folded state and an unfolded state, and in the unfolded state, a V-shaped shape that is successively connected to the transverse cut surface appears, and the side surfaces on both sides of the V-shaped A folding chair having a support portion formed in a flat plate shape and a lid portion having at least one end connected to one of the support portions in a folded state is provided.

  Furthermore, according to the folding chair of the present invention, the support portion is a single layer or a multilayer structure.

  Furthermore, according to the folding chair of the present invention, at least a part of the support portion has a multilayer structure, and the extension of the multilayer structure extends beyond the support portion and is formed at the tip angle of the V-shaped groove between adjacent V-shaped shapes. Is done.

  Furthermore, according to the folding chair of this invention, the edge of the side part of a cover part is formed in circular arc shape.

  Furthermore, according to the folding chair of the present invention, the width of the middle support leg of the support portion is wider than the width of the support legs on both sides in the unfolded state, and the width of the middle support leg corresponds to the center width of the arc-shaped lid portion. doing.

  Furthermore, according to the folding chair of the present invention, the shape of the lid is a rectangle, a square, or another type of regular polygon.

  Furthermore, according to the folding chair of the present invention, the lid portion has an even-sided polygonal shape, and in a plurality of support legs included in the support portion, the width of the support leg is in accordance with the polygonal shape of the lid part. It gradually increases from both sides of the lid toward the center.

  Furthermore, according to the folding chair of the present invention, the opposite ends of the lid portion are connected to both sides of the support portion, respectively, and the lid portion can be folded in parallel along the direction of both ends.

  Furthermore, according to the folding chair of the present invention, one end of the lid portion and one of the support portions are connected, the first engagement portion is provided at the other end of the lid portion, and the first engagement portion is provided at the other end of the support portion. The 1st latching | locking part corresponding to is provided.

  Further, according to the folding chair of the present invention, the second engagement portion is provided at the location of the first engagement portion, and the second engagement portion corresponding to the second engagement portion is provided on the first engagement portion. Have.

  Furthermore, according to the folding chair of this invention, a folding chair consists of a paperboard, a plastic board, a wooden board, or an alloy board.

  Further, according to the folding chair of the present invention, the waterproof layer is coated or the waterproof film is adhered to the surface of the folding chair.

  Furthermore, according to the folding chair of the present invention, the support portion is formed by a plurality of support portions that are sequentially bonded together on the side surfaces facing each other, and the waterproof layer is formed on the surface other than that used for the side surfaces to which the support portions are bonded. Alternatively, a waterproof film is provided.

Furthermore, according to the folding chair of this invention, the reinforcement board is provided in the inner surface of the cover part.
Furthermore, according to the folding chair of this invention, a reinforcement board consists of a paperboard, a wooden board, a plastic board, or an alloy board.

  Furthermore, according to the folding chair of the present invention, the support portion includes an integral external contour and a support plate provided at an intermediate portion inside the external contour.

The present invention has the following technical effects.
According to the folding chair of the present invention, it has a support portion and a lid, and can be folded when not in use and put in a bag. It can be used by putting a lid on the support part. The folding chair of the present invention is convenient to carry, has a simple structure, and can meet the daily demands of people very well.

  The above general description and the following detailed description both enumerate and explain the nature, but it is to be understood that the purpose is to further illustrate the invention for which protection is sought. I want.

  The drawings constitute a part of this specification and are used to facilitate a further understanding of the invention. These drawings illustrate certain embodiments of the invention and, together with the description, serve to explain the principles of the invention. The same members in the drawings are indicated by the same numbers.

FIG. 1 is a view showing a folding chair according to an embodiment of the present invention. FIG. 2 is another view showing a folding chair according to an embodiment of the present invention. FIG. 3 is a view showing a state in which a lid of a folding chair according to an embodiment of the present invention is opened. FIG. 4 is another view showing a state in which the lid of the folding chair according to the embodiment of the present invention is opened. FIG. 5 is a diagram illustrating a folded state of the folding chair according to the embodiment of the present invention. FIG. 6 is another view showing a folding chair according to an embodiment of the present invention. FIG. 7 shows a folding chair according to another embodiment of the present invention. FIG. 8 is a diagram illustrating a folded state of a folding chair according to another embodiment of the present invention. FIG. 9A is a diagram showing a transverse cut surface of the support portion of the folding chair according to the embodiment of the present invention. FIG. 9B is a diagram showing a transverse cut surface of the support portion of the folding chair according to the embodiment of the present invention. FIG. 9C is a diagram showing a transverse cut surface of the support portion of the folding chair according to the embodiment of the present invention.

  The following describes the implementation method of the present invention in combination with an exemplary embodiment with reference to the drawings.

  The present invention includes a support portion and a lid portion in the basic structure, and has a folded state (non-use state) and an unfolded state (use state). In the folded state, the support portion and the lid portion are folded, and the support portion is basically In a flat state, the user can conveniently carry it, and in the unfolded state, the support part of the folding chair is unfolded, and a V-shaped shape that is sequentially connected to the transverse cut surface of the support part appears, In addition, the sides on both sides of the V-shaped apex form support legs, and one end of the support part after being unfolded stands on the ground, and the other end is covered with the lid, so that the user sits on the lid A folding chair that can be rested is provided.

  Referring to the exemplary embodiments in FIGS. 1-4, the structure of the folding chair of the present invention is depicted, wherein the folding chair in FIGS. 1 and 2 is in a folded and unfolded state (eg, 1 and a support portion 10 having a plurality of legs 11, 12, 13, and in the embodiment of FIG. 1, one end 21 of the lid 20 is one of the support portions 10. 14 includes a lid 20 connected to 14.

  According to the folding chair of the present invention, the support part 10 has a structure having a single layer, a double layer or even a large number of layers. May have a multilayer structure. In general, the multilayer structure has better strength, but the thickness of the single-layer plate can be increased in order to improve the strength even when the support portion 10 is a single-layer. In fact, the multilayer plate is used to increase the thickness of the support portion 10.

  Furthermore, in the folding chair of the embodiment of the present invention, the structure of the support portion 10 is a two-layer structure (for example, shown in FIGS. 9A and 9B), which is convenient for increasing the strength of the support portion 10 and has a load capacity. Has improved. The double structure shown in FIG. 9A occupies about half of the entire structure of the support portion 10, that is, basically covers the two legs 11 and 13 on both sides, and the double structure shown in FIG. 10 V-shaped groove part is extended beyond the tip angle part (broken line part) and basically extended to cover all three support legs 11, 12, 13 to strengthen the strength of the support part 10 more remarkably. can do. When the double structure does not exceed the tip angle portion of the V-shaped groove described above (for example, as shown in FIG. 9A), the effect of improving the strength is slightly weakened. As shown in the figure, the above-described V-shaped groove is formed between two adjacent V-shaped shapes.

  According to the present invention, the double structure (and more multilayer structure) of the support portion 10 is closely bonded by, for example, adhesion. The method of making the double structure can be determined based on the specific design of the support portion 10. In this embodiment, the support portion 10 is formed by adhering the left and right support portions 10a and 10b, and as shown in FIG. 2, each support portion 10a and 10b is formed along a pre-formed polygonal line, for example, After the board material (for example, cardboard) is folded into a required shape, the overlapping portions of the board materials are bonded together (as shown in FIGS. 9A and 9B). Specifically, under such circumstances, after folding, each of the support portions 10a and 10b includes two connected V-shaped shapes, and the support portions 10a and 10b are connected to each other. A support leg 12 in the middle of the support portion 10 is formed by a V-shape. At this time, in order to obtain a double structure, the overlapping portions of the support portions 10a and 10b can be extended. The overlapping portions are V-shaped grooves (as shown in FIGS. 9A and 9B, the V-shaped grooves are The tip length of the support portions 10a and 10b is extended so as to overlap each other. It is good. Of course, since the corresponding side surfaces of the left and right support portions 10a and 10b need to be bonded, the bonded side surfaces do not have to form a double structure, that is, the overlapping portions are extended to the side surfaces used for connection. It is not necessary. In another embodiment, for example, when the support portion is formed integrally, that is, the contour of the external main body of the support portion is formed using a single plate material, and further, the intermediate portion inside the main body contour is formed. In the case of providing a support plate, a double plate material can be directly adopted to form the main portion of the support portion, thereby forming a double structure.

  In addition, it is necessary to explain that the method of forming a double layer (or multilayer) structure by the above-described method by stretching may be replaced by forming a double structure without adopting the method by stretching. That is, it can be created in a separable manner. Specifically, the double structure is divided into V-shaped tip angle portions, and a single-layer plate is added to both sides of the V-shaped tip angle portion. When forming a double structure by this method, the problem of folding the tip angle can be handled relatively easily, because the tip corner portion has a relatively large plate thickness in an integral double layer or multi-layer structure. This is because, with respect to the formation of the fold line, a relatively high demand is made so that a fold line having an appropriate width and depth can help the support portion 10 to be folded smoothly. In such a separable multi-layer structure, the support portions 10a and 10b of the support portion 10 can be formed by joining with a plurality of plate materials, respectively, and as one example, as shown in 9C, The support portions 10a and 10b may be formed by being bonded to each other by three plate members.

  Although the realization method of the double structure has been described in detail as described above, a realization method similar to the realization of the multilayer structure can be adopted. Furthermore, in order to increase the load capacity of the folding chair and improve the comfort of the chair, in addition to configuring the support portion 10 in a multilayer structure, in the embodiment shown in FIG. The side edge 22 is formed in an arc shape. Normally, the lid 20 of the folding chair can also be processed directly into a rectangle (as in the embodiment shown in FIG. 7), but the length in the vertical direction is the same compared to a similar typical rectangular lid. In the situation, the area of the seat portion of the lid portion 20 in which the side edge 22 is formed in an arc shape is increased, which improves the comfort and also helps to distribute the load weight, and the overall area of the lid portion 20 is also increased. Increases and helps increase load. In the lid portion 20 of the present embodiment, the side edge 22 forms an arc shape, that is, the lateral width of the middle portion of the lid portion 20 increases, but the widths of both ends 21 and 23 may not be changed as they are ( (Compared to the first rectangular lid), or the widths of the ends 21 and 23 may be reduced appropriately. It is important to note that the widths of the ends 21 and 23 are substantially reduced. Nevertheless, the overall load area of the lid 20 still increases. 5 and 6 show views in a state in which the folding chair of this embodiment is folded.

  Correspondingly, under the condition that the edge of the side of the lid 20 is formed in an arc shape, the width of the middle support leg 12 of the support portion 10 is set to the width of the support legs 11 and 13 on both sides as shown in FIGS. The width is set so as to correspond to the width of the center of the arc-shaped lid portion 20 in a state where the middle support leg 12 is expanded. Thus, the load capacity of the folding chair can be further improved and the stability can be increased.

  Of course, in other embodiments, even if the lid portion 20 does not have an arcuate edge and has an ordinary rectangular shape, the load capacity of the support portion 10 can still be increased by increasing the width of the support leg. Can be increased. Correspondingly, the width of the rectangular lid 20 increases accordingly. About the folding chair of this invention, the shape of the cover part 20 may be a rectangle or other regular regular polygons other than a rectangle.

Preferentially, since the support part of the main folding chair has a target structure, the lid on the upper surface is also formed in a symmetrical structure, and at this time, the lid is formed in an even-sided polygon. At this time, among the support legs included in the support part, the width of the support legs gradually increases from both sides toward the center according to the polygonal shape of the lid, and the width of the support legs on both sides is the narrowest and the middle width Is the widest.
Further, as shown in FIG. 3, one end 21 of the lid portion 20 of the folding chair of this embodiment is connected to one side 14 of the support portion 10, and a first engagement portion 24 is provided at the other end 23 of the lid portion 20. In addition, the first locking portion 16 corresponding to the first engaging portion 24 is provided on the other 15 of the support portion 10. At this time, after unfolding the support portion 10, the first engagement portion 24 of the lid portion 20 is inserted into the first locking portion 16 of the support portion 10 and becomes a formed folding chair. Specifically, the first locking portion 16 described above may be directly on the inner surface of the support leg 13, that is, the first engagement portion 24 may be directly inserted into the inner surface of the support leg 13. . Further, a separate locking portion may be provided inside the support leg 13, for example, by forming an insertion groove, and the first locking portion 16 may be inserted into the insertion groove.

  Preferentially, on the basis of the first engaging part 24 and the first locking part 16 described above, a locking part and an engaging part can be added separately in order to further increase the stability of the connection. For example, a second engagement portion (not shown) is provided at the location of the first engagement portion 16, and correspondingly, a second engagement portion corresponding to the second engagement portion on the first engagement portion 24. Part (not shown). In a typical embodiment, both the first engaging portion 24 and the second engaging portion are formed in a tongue shape, and both the first engaging portion 16 and the second engaging portion are formed in the insertion groove. Can do.

  7 and 8 show another embodiment of the folding chair of the present invention. Both ends 21 and 23 of the lid portion 20 are connected to both sides of the support portion 10, respectively, and the lid portion 20 is connected to both ends 21 and 23 thereof. It can be folded at the middle part in the parallel direction. Under such circumstances, after folding the folding chair, the two halves 20a, 20b of the lid 20 are folded along the central fold line 20c, specifically as shown in FIG. .

  Preferentially, a folding line is formed in advance on the portions of the folding chair where the support portion 10 and the lid 20 need to be folded, which is convenient for folding and unfolding. In consideration of environmental protection and weight reduction, the folding chair of the present invention can be made of paperboard (for example, cardboard). Of course, the production material is not limited to paperboard, and other board materials such as wood board, alloy board (preferentially lightweight alloy board), and plastic (for example, plastic cardboard) can also be adopted. When other plate materials are employed, the folding portion of the support portion and the lid portion can be connected by, for example, a hinge. In order to obtain a good waterproof function, in a situation where the chair is a book folding chair made of paperboard, a waterproof layer can be applied to the surface of the paperboard or a waterproof film can be adhered. In particular, when plastic corrugated cardboard is used, the cardboard can be connected by an adhesive method and has excellent waterproof properties. At this time, it is not necessary to add a waterproof film or a waterproof layer separately. In addition, the above-described plate materials can be used in combination based on actual demand.

  As described above, the support portion 10 of the folding chair includes a plurality of support portions 10a and 10b, and the support portions are combined to form a plurality of support legs, and a waterproof layer is provided on the side surface used for connecting the support portions 10a and 10b. Or the waterproof membrane is not provided. This is because the adhesive strength between the interfaces is sometimes weakened by the waterproof layer or the waterproof film, and the connected support portions 10a and 10b may be peeled off over time. In the embodiment of the present invention, the above-described installation is performed to improve the strength between the connection interfaces of the support portions 10a and 10b in order to prevent the above-described peeling state and increase the connection strength. At the same time, since most of the folding chairs are waterproofed, the overall waterproofing capability is not significantly reduced. In addition, in other embodiments, the support structure 10 can have a plurality of support portions similar to the support portions 10a and 10b described above, whereby the length of the main folding chair can be correspondingly increased.

Preferentially, in the folding chair of the present invention, a reinforcing plate 25 (as shown in FIG. 4) can be provided inside the lid portion 20 to further increase the load capacity. Specifically, the reinforcing board can be made of paperboard, wood board, plastic board or alloy board (preferentially lightweight alloy board). Furthermore, the inside of the cover part 20 can print or affix the instruction manual for the product.
The structure after the folding chair of the present invention is folded has no gap and the thickness is about the thickness of one book, which is convenient for carrying.

  The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. For engineers in this field, it can be said that the present invention has various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (16)

It has a folded state and an unfolded state, and in the unfolded state, a V-shaped shape that is successively connected to the transverse cut surface appears, and the side surfaces on both sides of the V-shaped top are support legs (11, 12, 13). A support portion (10) that basically forms a flat plate shape in a folded state,
A lid (20) having at least one end (21) connected to one of the support portions (14);
A folding chair characterized by comprising:   The folding chair according to claim 1, wherein the supporting portion has a single layer or a multilayer structure.   At least a part of the support portion has a multilayer structure, and the extension of the multilayer structure extends beyond the support portion and is formed at the tip angle of the V-shaped groove between the adjacent V-shaped shapes. The folding chair according to claim 2.   The folding chair according to claim 1, wherein the side edge (21, side edge 22) of the lid portion is formed in an arc shape.   In the unfolded state, the width of the middle supporting leg (12) of the support portion is wider than the width of the supporting legs (11, 13) on both sides, and the width of the middle supporting leg is the width of the center of the arc-shaped lid portion. The folding chair according to claim 4, wherein the folding chair corresponds to the above.   The folding chair according to claim 1, wherein the shape of the lid is a rectangular, square, or other regular polygon.   The lid portion has an even-sided polygonal shape, and in the plurality of support legs included in the support portion, in the expanded state, the width of the support leg depends on the polygonal shape of the lid portion. The folding chair according to claim 6, which gradually increases from the center toward the center.   The both ends where the said cover part faces are connected with the both sides of the said support part, respectively, Furthermore, the said cover part can fold the intermediate part in parallel along the direction of the said both ends. Folding chair as described.   One end (21) of the lid portion is connected to one of the support portions (14), the other end (23) of the lid portion has a first engagement portion (24), and the other end of the support portion The folding chair according to claim 1, further comprising a first locking portion (16) corresponding to the first engaging portion (24).   The second engagement portion is provided at a location of the first engagement portion, and a second engagement portion corresponding to the second engagement portion is provided on the first engagement portion. Folding chair as described in   The folding chair according to any one of claims 1 to 10, wherein the folding chair is made of paperboard, plastic board, wood board, or alloy board.   The folding chair according to claim 11, wherein a waterproof layer is coated or a waterproof film is adhered to a surface of the folding chair.   The support portion is formed by a plurality of support portions (10a, 10b) that are sequentially bonded to side surfaces facing each other, and a waterproof layer or a waterproof film is provided on a surface other than the side surfaces to be bonded to the support portion. The folding chair according to claim 11, wherein the folding chair is provided.   The folding chair according to claim 1, wherein a reinforcing plate (25) is provided on an inner surface of the lid.   The folding chair according to claim 14, wherein the reinforcing board is made of paperboard, wood board, plastic board, or alloy board.   The folding chair according to claim 1, wherein the support portion includes an integral outer contour and a support plate provided at an intermediate portion inside the outer contour.

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