JP2010137865A - Folding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding container having a relatively simple structure which has high rigidity in a self standing state, and is not easily collapsed or folded by an external stimulus. <P>SOLUTION: The folding container 1 is provided with: a rectangular bottom surface part 2; two first side surface parts 3 opposite to each other; and two second side surface parts 4 opposite to each other, and constitutes a box-shaped container body 1A in the self standing state. The five surface parts 2, 3 and 4 are formed of net-like or sheet-like rectangular members. A pair of plate-like reinforcing members 34 extending along each ridge in each position with the predetermined spacing W being separated from the right and left ridges forming boundaries with the second side surface part 4 adjacent to the first side surface part 3 are provided on each of the two first side surface parts 3 facing each other. On the other hand, no plate-like reinforcing member 34 is not provided on the two second side surface parts 4 opposite to each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a folding container that can constitute a self-supporting box-shaped container when in use, and can fold the box-shaped container when not in use.

  Patent Document 1 discloses a folding container that is self-supporting with an upper surface opened during use and is folded small when not in use. According to the detailed description of the invention of Patent Document 1 (hereinafter, the reference number is cited), the box 1 constituting the container has a cubic shape in which the sides of the five surface portions 2 are connected to open the upper surface. Each surface portion 2 is formed of, for example, a mesh member. A reinforcing member 14 made of a pipe or a bar is connected to each of the side portions 11 at the upper end of the box 1 and the vertical ridgeline 12 formed by the two surface portions and the ridgeline 13 at the bottom. And the length of each reinforcement member 14 is set shorter than the length of the side part 11 and the ridgelines 12 and 13, and the space | interval 16 is between the corresponding ridge angles AH at the both ends of each reinforcement member 14. Existing. Furthermore, a universal joint 21 formed in a T-shape with a flexible cloth is attached to each of the ridge angles A to H, and the three reinforcing members 14 are interconnected by the universal joints 21.

By adopting such a configuration, the folding container of Patent Document 1 can be folded into a triangular shape in which all the reinforcing members are arranged in parallel by bending each surface portion along its diagonal when not in use.
Japanese Patent No. 3035730

  However, in the folding container of Patent Document 1, there is an interval 16 between the ridge angles A to H corresponding to each end at both ends of each reinforcing member 14 (that is, each ridge angle A to H has In addition, because of the fact that the T-shaped universal joint 21 positioned at each of the ridge angles A to H is made of a flexible fabric, the rigidity of the self-standing container is not so high. For this reason, the self-supporting container has a weakness in that it has a low resistance to external stimuli that try to knock it down, and can easily fall over and fold even with a relatively small external stimulus.

  An object of the present invention is to provide a folding container that has a relatively simple structure but has high rigidity during self-supporting and does not easily fall down or be folded by an external stimulus.

  The invention of claim 1 includes a rectangular bottom surface portion, two first side surface portions facing each other, and two second side surface portions facing each other, and each of these five surface portions has a net shape or a sheet shape. A folding container that is formed by a rectangular member, can form a self-supporting box-shaped container body with the five surface portions when used, and can be folded when not in use. Each of the two first side surfaces facing each other extends along each side at a position spaced from each of the left and right sides forming a boundary with the second side surface adjacent to the first side surface. A folding container characterized in that a pair of plate-shaped reinforcing members is provided.

  According to a second aspect of the present invention, in the folding container according to the first aspect, each of the pair of plate-shaped reinforcing members provided on the first side surface portion is a plate-shaped reinforcing material having a plastic cardboard structure. It is characterized by.

  According to a third aspect of the present invention, in the folding container according to the second aspect of the present invention, the plate-shaped reinforcing member of the plastic corrugated cardboard structure is provided at least between the outer plate constituting the corrugated cardboard structure and the corrugated core. It has one bar.

  According to a fourth aspect of the present invention, in the folding container according to any one of the first to third aspects, at least one of the two first side surfaces facing each other is provided with the pair of plate-shaped reinforcing members. A display portion is provided in between.

  According to a fifth aspect of the present invention, in the folding container according to any one of the first to fourth aspects, the upper side portions of the two first side surface portions and the two second side surface portions are rigid to the upper side portion. A bar-shaped upper side reinforcing material for imparting is provided.

[Additional remarks] Further preferable aspects and additional constituent elements of the present invention are listed below.
6. The folding container according to claim 5, wherein four sides of the bottom surface of the rectangular shape or the vicinity of each of the four sides are rod-shaped bottom surface peripheral portions for imparting rigidity to the four sides of the bottom surface portion of the self-standing box-shaped container body. Reinforcing material is provided.

  According to the folding container of claim 1, among the total of the four side surface parts constituting the self-supporting box-type container body, each of the two first side surface parts facing each other is adjacent to the second side surface part. Since a pair of plate-like reinforcing members extending along the respective sides are provided at positions spaced from the left and right sides (i.e., ridge lines extending in the vertical direction in the box-shaped container body), the tentatively remains Even if there is no reinforcing material for assisting the self-supporting of the box-shaped container body on the two second side surface portions, sufficient rigidity is provided by a total of two pairs of plate-shaped reinforcing materials provided on the two first side surface portions. The box-shaped container body can be made independent by securing the above. Therefore, according to the present invention, although it is a relatively simple structure, it has high rigidity when it is independent, and can be prevented from being easily overturned or folded by an external stimulus.

  According to the folding container of claim 2, since each of the pair of plate-like reinforcing members provided on the first side surface portion is a plate-like reinforcing member having a plastic cardboard structure, an increase in weight is suppressed as much as possible. However, the rigidity at the time of self-supporting of a box-type container body can be improved greatly.

  According to the folding container of claim 3, in addition to adopting a plastic plate-like reinforcing member having a cardboard structure as the pair of plate-like reinforcing members provided on the first side surface portion, the corrugated board structure has Since at least one bar is provided between the outer plate and the corrugated core, it is possible to further increase the rigidity of the box-type container body when it is self-supporting as compared with the case of only the plate-like reinforcing material of the corrugated cardboard structure. it can.

  In the folding container of Claims 1-3, since the two 1st side parts are each provided with a pair of plate-shaped reinforcement material, they cannot be folded inherently. Therefore, the box-shaped container body is folded from the self-standing state by appropriately folding the surface portions other than the two first side surface portions (that is, the two second side surface portions and the bottom surface portion). In this respect, in the folding container according to claim 4, since the display portion is provided between the pair of plate-shaped reinforcing members in at least one of the two first side surface portions that cannot be originally folded, In this case, the display unit is not hidden. That is, according to the folding container of claim 4, the display unit can always be exposed on the surface of the container body when the box-shaped container body is in a self-supporting state or in the folded state. Regardless, the display function of the display unit is not impaired.

  According to the folding container of the fifth aspect, since the upper side portions of the two first side surface portions and the two second side surface portions are provided with the rod-shaped upper side portion reinforcing material that gives rigidity to the upper side portion. The rigidity of the self-standing box-shaped container body is further enhanced by the synergistic effect of these bar-shaped upper side reinforcing members and the pair of plate-like reinforcing members in the two first side surface portions. Therefore, it is possible to more reliably prevent a situation where the body is easily collapsed or folded by an external stimulus.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which a folding container 1 according to the present embodiment is self-supported to form a box-type container body 1A. For convenience of explanation, the eight ridge angles of the box-shaped container body 1A in FIG. 1 are denoted by symbols a, b, c, d, e, f, g, h (for the eighth ridge angle h). In FIG. 1, since it is hidden behind the ridge angle b, see FIGS. 5 to 7). The “ridge line” in the box-shaped container body 1A indicates an outline of the box-shaped container body 1A that connects two adjacent ridge angles in the horizontal direction or the vertical direction.

  As shown in FIG. 1, the folding container 1 has a rectangular (that is, square or rectangular) bottom surface portion 2 and four side surface portions 3 and 4 provided so as to rise from four sides of the bottom surface portion 2. It has. The four side surface portions 3 and 4 are composed of two first side surface portions 3 facing each other and two second side surface portions 4 facing each other, and the two left and right sides of each first side surface portion 3 are It is continuous with the sides of the two second side surface portions 4 adjacent to the first side surface portion 3. Therefore, the folding container 1 in a self-standing state constitutes a box-shaped container 1 </ b> A having a cubic shape or a rectangular parallelepiped shape as a whole with an upper surface portion opened.

  In the present embodiment, the bottom surface portion 2 and the four side surface portions 3 and 4 are all formed of a net-like (that is, net-like or mesh-like) rectangular member, but part or all of these surface portions 2 to 4 are formed. It is also possible to replace it with a sheet-like rectangular member.

  As can be seen from FIG. 2, belt-shaped bag bodies 21 are respectively provided at positions along the four sides of the bottom surface portion 2. Each bag 21 is fixed to the upper surface side (or the lower surface side) of the bottom surface portion 2 by, for example, sewing. A plastic rod-like rigid member 22 is inserted into each bag body 21. The total four rod-like rigid members 22 give rigidity to the four ridge lines corresponding to the four sides of the bottom surface portion 2 of the self-supporting box-shaped container body 1A to assist the bottom surface portion 2 in maintaining a rectangular shape. It functions as a “peripheral reinforcement”. The two adjacent rod-like rigid members 22 are provided so that their end portions are not in direct contact with each other at intervals at the ridge angles e, f, g, h of the box-type container body 1A. For this reason, the box-shaped container body 1 </ b> A can be bent at the ridge angles e, f, g, and h of the bottom surface portion 2.

  Further, as shown in FIG. 2, strip-shaped horizontal bags 31 and 41 extending in the horizontal direction are provided at positions along the upper sides of the four side surface parts 3 and 4, respectively. The horizontal bag bodies 31 and 41 are fixed to the outer surface side (or the inner surface side) of the side surface portions 3 and 4 by, for example, sewing. Inside each horizontal bag body 31, 41, plastic rod-like rigid members 32, 42 similar to the rod-like rigid member 22 are inserted. The total four rod-like rigid members 32 and 42 function as “upper side reinforcing members” that impart rigidity to the four ridge lines corresponding to the upper sides of the four side surface parts 3 and 4 of the self-standing box-shaped container body 1A. The two adjacent rod-like rigid members 32, 34 are provided so that their end portions are not in direct contact with each other at the ridge angles a, b, c, d of the box-type container body 1A. For this reason, the box-shaped container 1 </ b> A is also bendable at the ridge angles a, b, c, d on the upper sides of the side surfaces 3, 4.

  As shown in FIGS. 1 to 3, strip-like vertical bag bodies 33 extending in the vertical direction are provided at positions along the left and right sides of each first side surface portion 3. Each vertical bag 33 is fixed to the outer surface side (or the inner surface side) of the first side surface portion 3 by, for example, sewing. A narrow plate-shaped reinforcing member 34 having a narrow width is inserted into each vertical bag 33. However, as shown in FIG. 3, each plate-like reinforcing member 34 has its outer side (the left side for the left-side plate-like reinforcing member 34 and the right side for the right-side plate-like reinforcing member 34). The first side surface portion 3 is provided so as to be separated from the left end side or the right end side by a predetermined interval W (for example, W = 5 to 30 mm). In other words, each of the two opposing first side surfaces 3 of the box-shaped container body 1 </ b> A has a predetermined interval W from the left and right edges forming a boundary with the second side surface 4 adjacent to the first side surface 3. At each separated position, a pair of plate-like reinforcing members 34 extending along the left and right end sides are provided. These plate-like reinforcing members 34 extend over almost the entire height of the first side surface portion 3.

  Note that the second side surface portion 4 is not provided with the belt-like vertical bag 33 and the plate-like reinforcing material 34 as in the first side surface portion 3.

  In the present embodiment, each plate-shaped reinforcing member 34 is formed by forming a plastic corrugated cardboard structural material (generally called “plastic corrugated cardboard”, “pradan” or “dumpler”) into a narrow and long plate shape. . Specifically, as shown in FIGS. 4A and 4B, each plate-shaped reinforcing member 34 includes two outer plates 35 made of plastic and a corrugated core interposed between these outer plates 35. 36 is bonded with an adhesive or the like, and has substantially the same structure as a normal paper cardboard except that the material is plastic. Therefore, the plate-like reinforcing member 34 has an advantage (that is, relatively light weight but high rigidity) peculiar to the cardboard structure.

  The plate-like reinforcing member 34 of the present embodiment further has a single bar member 37 at a substantially central position in the width direction. The bar 37 is made of a highly rigid plastic or metal, and is inserted and disposed in one of a plurality of vertically long spaces S defined between one outer plate 35 and the corrugated core 36. For this reason, this bar 37 works as an additional aggregate in the plate-like reinforcing member 34, and further improves the rigidity of the plate-like reinforcing member 34 made of a dumper.

  As shown in FIGS. 1 and 3, each of the two first side surface portions 3 is provided with a display portion 38 positioned between the left and right vertical bag bodies 33 (and thus the left and right plate-like reinforcing members 34). Yes. For example, the display unit 38 is formed by stitching or sticking a rectangular flexible transparent plastic sheet to the first side surface part 3 along the bottom and left and right sides, thereby opening the front side of the sheet. The pocket portion 38 is configured. By inserting a paper on which characters and figures are drawn into the display pocket portion 38, the characters and figures can be displayed on the outer surface side of each first side surface portion 3.

  As shown in FIG. 1, each of the two second side surface portions 4 is provided with a grip portion 43 (only one is shown in FIG. 1) on the outer surface side of the horizontal bag body 41 located near the upper side of each. Yes. This gripping portion 43 is a part for a person to put on his / her finger when lifting the box-shaped container body 1A, and is a handle made of, for example, a cloth or plastic band or string.

  The folding container 1 configured as described above constitutes a self-supporting box-type container 1A as shown in FIG. 1 when in use, but when not in use, the folding container 1A is folded as shown in FIG. Can be folded into

  When the box-shaped container body 1A is folded from the self-standing state of FIG. 1, first, the two ridge angles b and d on the upper side of the box-shaped container body 1A are made to approach each other. Then, as shown in FIG. 5, diagonal lines are generated in each of the two second side surface portions 4 and the bottom surface portion 2. That is, in the second side surface portion 4 on the near side in FIG. 5, a broken line 51 is generated along a diagonal line connecting the ridge angles b and e. In the second side surface portion 4 on the back side in FIG. 5, a broken line 52 is generated along a diagonal line connecting the ridge angles d and g. Furthermore, in the bottom face part 2 of FIG. 5, the broken line (not shown) along the diagonal line which connects the ridge angles f and h arises. As a result, each of the two second side surface portions 4 and the bottom surface portion 2 can be folded along the fold lines 51 and 52. Here, “center folding” means that the second side surface portion 4 on the near side in FIG. 5 is described. The second side surface portion 4 is bent in a direction in which two right-angled triangles having a polygonal line 51 as a common hypotenuse overlap. In this case, it means a folding method in which the broken line 51 goes into the container body and approaches the broken line 52 of the second side surface portion 4 on the opposite side.

  When the box-like container body 1A is deformed until the two ridge angles b and d are further moved toward each other and the two ridge angles b and d are substantially in contact with each other as shown in FIG. The middle break in part 2 also proceeds. That is, in the second side surface portion 4 on the near side in FIG. 6, the two ridge angles a and f that are in a diagonal relationship on the second diagonal line that should be paired with the broken line 51 are close to each other. The middle break proceeds. In the second side surface portion 4 on the back side in FIG. 6, the two ridge angles c and h that are in a diagonal relationship on the second diagonal line that should be paired with the polygonal line 52 are folded so that they are close to each other. Advances. Further, in the bottom surface portion 2 of FIG. 6, the middle fold proceeds so that the two ridge angles e and g that are diagonally related to each other on the second diagonal line that should be paired with a polygonal line (not shown) are close to each other. .

  Then, when the middle folding at the three surface portions is completed, the box-shaped container 1A is finally folded into the state of FIG. That is, the two second side surface portions 4 and the bottom surface portion 2 are folded so that the ridge angles b and d, the ridge angles f and a, the ridge angles g and e, and the ridge angles c and h overlap each other. As a result, the folding of the box-shaped container body 1A is completed without bending only the two first side surface parts 3, and the two first side surface parts 3 provide the front and rear surfaces of the folded container 1.

  Thus, according to the folding container 1 of this embodiment, it adjoins to each of the two 1st side parts 3 which oppose each other among the total four side parts which comprise the self-standing box-type container body 1A. Since the pair of plate-shaped reinforcing members 34 extending along the respective side edges are provided at each position separated from the left and right side edges forming a boundary with the second side surface part 4 by a predetermined distance W, the remaining two second side surface parts Even if the same reinforcing material is not present in FIG. 4, the box-shaped container body 1A can be made self-supporting with sufficient rigidity. In particular, in this embodiment, since the plate-shaped reinforcing member 34 is a plastic corrugated cardboard structure, it is possible to dramatically increase the rigidity of the box-type container body 1A when it is independent while suppressing an increase in weight as much as possible. In addition, since the bar 37 is provided between the outer plate 35 and the corrugated core 36 constituting the corrugated cardboard structure, the rigidity of the box-shaped container body 1A when it is independent is higher than that of the corrugated cardboard structure alone. It can be further increased. Therefore, according to the present embodiment, the rigidity at the time of self-supporting can be increased more than before even though it is a relatively simple structure, and it is possible to reliably prevent a situation where the body is easily collapsed or folded by an external stimulus. can do.

  Further, the reinforcing members housed in the four belt-like vertical bag bodies 33 along the four upstanding ridge lines in the box-shaped container body 1A are plate-like reinforcing members 34 made of a corrugated board structure made of plastic in this embodiment. Therefore, there is an advantage that even when the box-shaped container body 1A is dragged in an upright state, the belt-like bag body 21 on the bottom surface portion 2 is hardly broken. That is, in the container of Patent Document 1, since the reinforcing member provided along the vertical ridge line is made of a pipe or a bar, a high vertical load is easily concentrated on one point on the bottom surface of the container. Therefore, the bottom portion of the container was easily torn when the container was dragged. In the present embodiment, since the reinforcing member 34 is plate-shaped, there is no concentration of one point on the vertical load, and accordingly, the belt-like bag body 21 on the bottom surface portion 2 is not easily broken.

  In the present embodiment, since the two first side surface portions 3 are provided with the plate-like reinforcing members 34 and cannot be bent inherently, the display portions 38 are provided on the two first side surface portions 3 that cannot be bent inherently. Thus, the display unit 38 is not hidden inside even when folded. That is, in the folding container 1 of the present embodiment, the display unit 38 can always be exposed on the surface of the container when the box-shaped container body 1A is in a self-standing state or in a folded state. Regardless, the display function of the display unit 38 is not impaired. In addition, there is an advantage that no folds or creases are left on the display unit 38 even when the box-shaped container body 1A is folded.

  [Modification] In the above embodiment, one bar 37 is provided in the plate-like reinforcing member 34, but a plurality of bars 37 may be provided.

  [Modification] As shown in FIG. 8, a lid 60 may be provided for the box-shaped container body 1A of the above embodiment. The lid 60 is formed to be slightly larger than the upper surface so as to cover the entire opened upper surface of the box-shaped container body 1A. For example, the lid 60 is provided so as to extend from the upper side of the second side surface portion 4 and to the upper side. Are connected. The lid 60 is provided with a pair of hook-and-loop fasteners 61. In addition, a pair of hook-and-loop fasteners 62 corresponding to the pair of hook-and-loop fasteners 61 are provided on the belt-like horizontal bag body 41 of the other second side face 4 facing the second side face 4 to which the lid 60 is connected. It has been. In other words, the lid 60 is turned so that the hook-and-loop fastener 61 on the lid 60 side adheres to the hook-and-loop fastener 62 on the belt-like horizontal bag body 41 side, so that the upper surface opening of the box-type container 1A is covered with the lid 60. Can be covered (closed). By closing the upper surface opening of the box-shaped container body 1A with the lid 60, the rectangular shape of the upper end (upper surface opening) of the box-shaped container 1A is fixed or increased in rigidity. Deformation can be prevented or suppressed. A belt-like bag 63 similar to the belt-like bag 21 in the bottom surface 2 is provided along the periphery of the lid 60, and a rod-like rigid member similar to the rod-like rigid member 21 is provided in the belt-like bag 63. It is preferable to insert (not shown).

The perspective view of the box-shaped container body (partially broken and shown) which made the folding container self-supporting. The partial expansion perspective view which fractures | ruptures and shows the ridge angle vicinity of the box-shaped container body of FIG. The schematic cross-sectional view in the height direction middle position of the 1st side part of a folding container. (A) is a top view (upper end view) of the plate-shaped reinforcing material provided on the first side surface portion, and (b) is a partial front view of the plate-shaped reinforcing material. The perspective view which shows the folding procedure of a folding container. The perspective view which shows the folding procedure of a folding container. The perspective view which shows the folding completion state of a folding container. The perspective view of the example of a change of a container (container with a lid).

Explanation of symbols

1 ... Folding container (1A is a self-standing box-type container)
2 ... bottom part 3 ... first side part 4 ... second side part 22 ... rod-shaped rigid member (bottom peripheral part reinforcing material)
32 ... Rod-shaped rigid member (upper side reinforcement)
34 ... Plate-shaped reinforcing material 35 ... Outer plate 36 ... Corrugated core 37 ... Bar material 38 ... Display part 42 ... Bar-shaped rigid member (upper side reinforcing material)
W ... Predetermined interval

Claims (5)

A rectangular bottom surface, two first side surfaces facing each other, and two second side surfaces facing each other, each of these five surface portions being formed by a mesh-like or sheet-like rectangular member. The folding container can fold the box-shaped container body when not in use, and can form a self-supporting box-shaped container body when not in use,
Each of the two opposing first side surfaces is provided along each side at a position spaced from the left and right sides forming a boundary with the second side surface adjacent to the first side surface. A folding container, characterized in that a pair of plate-like reinforcing members are provided.   2. The folding container according to claim 1, wherein each of the pair of plate-shaped reinforcing members provided on the first side surface portion is a plate-shaped reinforcing material having a plastic cardboard structure.   The plate-shaped reinforcing member made of plastic corrugated cardboard structure has at least one bar provided between an outer plate constituting the corrugated cardboard structure and a corrugated core. Folding container as described.   The display unit is provided between the pair of plate-shaped reinforcing members on at least one of the two first side surface portions facing each other. The folding container according to item.   The bar-shaped upper side part reinforcing material which provides rigidity to the said upper side part is provided in each upper side part of the said two 1st side surface parts and two 2nd side surface parts, The 1st characterized by the above-mentioned. 5. The folding container according to any one of 4 above.

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