Cardboard boxes

Abstract

To provide a corrugated board box capable of being easily carried and bound without causing collapse of cargoes when a plurality of boxes are handled while stacked in a folded state, before and after the use as the box.SOLUTION: A corrugated board box comprises two pairs of outer flaps 22, 24, 32, 34 and two pairs of inner flaps 21, 23, 31, 33 which are formed continuously from four side surfaces 11-14 and constitute a lid surface and a bottom surface. At least one outer flap 24 and at least one inner flap 21 overlapping with the outer flap 24 are provided with through holes or non-through holes 21A, 24A opened by pressurizing, respectively, at positions overlapping with each other in a state where a corrugated board box 1 is folded and not overlapping with each other in a state where the corrugated board box 1 is assembled.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] To provide a corrugated cardboard box which can be easily transported, bound, etc., without causing collapse of the load when a plurality of boxes are stacked in a folded state and handled before and after use as a box. [Background technology]

[0002] In recent years, with the spread of Internet mail order sales (so-called online shopping), even ordinary households are generating large amounts of used cardboard boxes, and their disposal has become a problem. Generally, used cardboard boxes are folded, stacked, tied with plastic string, etc., and sent for recycling. However, the size of cardboard boxes varies greatly depending on the size of the products packed in them, and even cardboard boxes that pack products shipped from the same mail order company are not standardized in size. Therefore, even in ordinary households, the task of folding used cardboard boxes, stacking them, and tying them with plastic string, etc., is troublesome and hard work.

[0003] Also, for businesses that handle a large amount of cardboard boxes, such as the mail-order businesses, the task of assembling new, unused cardboard boxes is a heavy burden, and improvements in workability are required. Generally, new, unused cardboard boxes 100 are shipped in a folded state, stacked in multiple tiers, and bound with cable ties 101, as shown in FIG. 25. When using them, the cable ties 101 are cut, and the stacked cardboard boxes 100 are taken out one by one from the top, and assembled. Since new cardboard boxes 100 are stacked in a tightly packed state with no gaps, it is difficult to take out only the top cardboard box 100a without breaking the stack, and when taking out the cardboard box 100a, the cardboard box 100b below it also moves, causing the stacked cardboard boxes 100 to collapse. Therefore, in a workshop that uses a large amount of cardboard boxes every day, an unnecessary process such as re-stacking the collapsed cardboard boxes 100 is added, which makes it difficult to assemble the cardboard boxes 100. Also, depending on the size of the cardboard box 100, the worker must handle the cardboard box by holding it with both hands, which also reduces workability. Furthermore, since the surface of the cardboard boxes 100 bound together by the presence of the cable ties 101 is not flat, when a large number of cardboard boxes 100 are transported on a dolly or the like within a work site, there is a high possibility that the bound cardboard boxes 100 themselves will collapse due to vibration or the like. Furthermore, the cable ties 101 are made of a relatively hard resin (such as plastic), and disposing of the cable ties 101 after they are cut can be a hassle for the worker and can cause problems with environmental pollution.

[0004] Similarly, retailers and the like that handle a large number of products in cardboard boxes every day must fold and stack used cardboard boxes for recycling. However, used cardboard boxes, especially those that have packed a large number of products with irregular shapes such as agricultural products, are often torn or deformed. Therefore, unlike new cardboard boxes, it is almost impossible to stack used cardboard boxes tightly together without any gaps, even when folded. In addition, since the sizes of cardboard boxes vary depending on the product, it is difficult to fold used cardboard boxes, stack them, and tie them with cable ties or plastic strings.

[0005] Incidentally, although having a different purpose from the present invention, Patent Document 1 describes providing an opening on the outer flap on the bottom of the cardboard box for hooking fingers when the box is in the boxed state. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2006-008184 A (Patent No. 4539194) Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made to solve the problems of the conventional examples described above, and aims to provide a cardboard box that allows ordinary households to easily recycle used cardboard boxes, and that for businesses that use large amounts of cardboard boxes, allows multiple boxes to be stacked in a folded state and handled easily without falling over, both before use (when new and unused) and after use (when disposing of them for recycling), and can be handled with one hand when stacked, as well as a guide rod suitable for recycling such cardboard boxes. [Means for solving the problem]

[0008] The cardboard box according to the present invention is a cardboard box that is substantially rectangular when assembled, and includes four side surfaces that form side walls, two pairs of outer flaps that are formed continuously from the four side surfaces and form a lid surface and a bottom surface, and two pairs of inner flaps that reinforce the two pairs of outer flaps from the inside, At least one outer flap of the two pairs of outer flaps and at least one inner flap of the two inner flaps which overlaps with the at least one outer flap when the cardboard box is assembled are each provided with a through hole or a non-through hole which opens when pressurized, at positions which overlap with each other when the cardboard box is folded but do not overlap with each other when the cardboard box is assembled.

[0009] The through hole or the non-through hole may be configured to be provided near a side edge that separates the at least one outer flap and the at least one inner flap when the cardboard box is in a folded state, and near a cut edge of the at least one outer flap and the at least one inner flap.

[0010] Alternatively, the through hole or the non-through hole may be configured to be provided near a side edge that separates the at least two outer flaps and the at least two inner flaps when the cardboard box is in a folded state, and near a cut edge of the at least two outer flaps and the at least two inner flaps.

[0011] The at least two outer flaps and the at least two inner flaps may each be configured to have the through holes or the non-through holes at two locations.

[0012] In addition, among the at least two outer flaps and the at least two inner flaps, at least one outer flap and at least one inner flap are The at least one outer flap and the at least one inner flap constitute the bottom surface. It may be configured as follows.

[0013] The shape of the through holes or the non-through holes may be any one or a combination of two or more selected from the group consisting of a circle, an ellipse, an oval, a triangle, and a rectangle.

[0014] After being used as a box for packaging goods, the cardboard box can be reassembled as a stocker for temporarily storing other used cardboard boxes, a storage section of the stocker is formed by at least the four side surfaces and a pair of outer flaps and a pair of inner flaps constituting a lid surface out of the two pairs of outer flaps and the two pairs of inner flaps; a bottom surface of the stocker is formed by at least two of the pair of outer flaps and the pair of inner flaps that constitute a bottom surface of the two pairs of outer flaps and the two pairs of inner flaps; The horizontal cross section of the storage section is substantially a parallelogram. It may be configured as follows.

[0015] Each of the pair of outer flaps or the pair of inner flaps constituting the bottom surface may be configured to have a joining portion formed thereon for joining to the other outer flap or the other inner flap.

[0016] A pair of inner flaps constituting the bottom surface may each be formed with a joining portion for joining to the pair of outer flaps.

[0017] In addition, the guide rod of the present invention is a guide rod that is fitted into a through hole or a non-through hole that opens when pressurized, provided in any of the above-mentioned cardboard boxes, and is characterized in that a slit parallel to the central axis is provided on the outer periphery. Effect of the Invention

[0018] Thus, according to the cardboard box of the present invention, at least one of the two pairs of outer flaps and two pairs of inner flaps constituting the lid surface and the bottom surface of the cardboard box is provided with a through hole or a non-through hole that opens when pressurized, at positions where the two outer flaps overlap each other when the cardboard box is folded and do not overlap each other when the cardboard box is assembled. Therefore, when recycling used cardboard boxes in ordinary households, the used folded cardboard box can be hung from a clothesline pole or the like by fitting the cardboard box to the through hole or the non-through hole that opens when pressurized, for example. If the size of the through hole or the non-through hole is made larger than the outer diameter of the clothesline pole or the like, the folded cardboard boxes can be easily tied together with a vinyl string or the like while hanging them from a clothesline pole or the like. In addition, when a business entity recycles used cardboard boxes, the device can be attached horizontally to the wall of the work area or to a cart for collecting cardboard boxes, and multiple cardboard boxes can be easily bundled by inserting folded cardboard boxes one by one through the through-holes. Also, when the cardboard box is folded, the user can insert a finger into the through-hole to carry the cardboard box with one hand.

[0019] In addition, when assembling new, unused cardboard boxes, if a guide rod or the like is fitted into the through holes of the stacked cardboard boxes, the stacked cardboard boxes will hardly collapse even if the cable ties are cut. When stacked cardboard boxes are taken out one by one from the top and assembled, it is possible to take out only the top cardboard box without breaking the stack. Even if there is only one guide rod, the lower cardboard boxes may rotate slightly around the guide rod, but they will not fall to the ground, and the stacked cardboard boxes will not collapse. Furthermore, when shipping new, unused cardboard boxes, if a guide rod is fitted into the through holes of the cardboard boxes in advance, the number of cable ties can be reduced, or even if cable ties are not used, the stacked cardboard boxes will not collapse during transportation.

[0020] Furthermore, if a cardboard box can be used as a stocker for temporarily storing other used cardboard boxes after it has been used as a box for packaging products, recycling of the used cardboard boxes will be easier than, for example, storing used cardboard boxes by leaning them against a wall in an ordinary household. Also, by reassembling the cardboard box so that the horizontal cross section of the storage section formed by at least four side surfaces and the inner and outer flaps that make up the lid surface is a substantially parallelogram, it is possible to store and store used cardboard boxes of a larger size than when the cardboard box is reassembled as is into a rectangular parallelepiped.

[0021] Furthermore, the guide rod according to the present invention has slits on its outer periphery that are parallel to the central axis, so that if the guide rod is fixed horizontally, a vinyl string is inserted into the slits beforehand, and a folded cardboard box is fitted onto the guide rod through the through holes, the vinyl string will be inserted into the through holes of each cardboard box when multiple cardboard boxes have been fitted in. This means that the process of inserting the vinyl string into the through holes of the cardboard boxes can be omitted during the recycling process. [Brief description of the drawings]

[0022] [Figure 1] 1 is a front view showing a cardboard box according to a first embodiment of the present invention in a folded state. [Diagram 2] FIG. 2 is a perspective view showing the cardboard box according to the first embodiment in an assembled state. [Diagram 3] FIG. 11 is a front view showing a cardboard box according to a second embodiment of the present invention in a folded state. [Figure 4] FIG. 11 is a perspective view showing the cardboard box according to the second embodiment in an assembled state. [Diagram 5] FIG. 11 is a perspective view showing the cardboard box according to the second embodiment in a folded and stacked state. [Figure 6] FIG. 11 is a front view showing a cardboard box according to a third embodiment of the present invention in a folded state. [Figure 7] FIG. 11 is a perspective view showing the cardboard box according to the third embodiment in an assembled state. [Figure 8] FIG. 11 is a front view showing a cardboard box according to a fourth embodiment of the present invention in a folded state. [Figure 9] FIG. 13 is a perspective view showing the cardboard box according to the fourth embodiment in an assembled state. [Figure 10] 11A and 11B show a method for recycling cardboard boxes according to the fourth embodiment, where (a) is a front view and (b) is a side view. [Figure 11] FIG. 13 is a front view showing a folded state of a cardboard box according to a fifth embodiment of the present invention. [Figure 12] FIG. 13 is a perspective view showing the cardboard box according to the fifth embodiment in an assembled state. [Figure 13] FIG. 13 is a front view showing a cardboard box according to a sixth embodiment of the present invention in a folded state. [Figure 14] FIG. 13 is a perspective view showing the cardboard box according to the sixth embodiment in an assembled state. [Figure 15] FIG. 13 is a perspective view showing an example of use of the cardboard box according to the sixth embodiment. [Figure 16] FIG. 13 is a front view showing a cardboard box according to a seventh embodiment of the present invention in a folded state. [Figure 17] 13 is a perspective view showing the cardboard box according to the seventh embodiment reassembled as a storage unit for temporarily storing used cardboard boxes. FIG. [Figure 18] FIG. 13 is a perspective view showing an example of use of the seventh embodiment as a cardboard box storage unit. [Figure 19] FIG. 13 is a front view showing a cardboard box according to an eighth embodiment of the present invention in a folded state. [Figure 20] FIG. 23 is a perspective view showing a state in the middle of reassembly of the cardboard box according to the eighth embodiment. [Figure 21] 13 is a perspective view showing the cardboard box according to the eighth embodiment reassembled as a storage unit for temporarily storing used cardboard boxes. FIG. [Figure 22] FIG. 13 is a front view showing a cardboard box according to a ninth embodiment of the present invention in a folded state. [Diagram 23] FIG. 13 is a perspective view showing the cardboard box according to the ninth embodiment reassembled as a storage unit for temporarily storing used cardboard boxes. [Figure 24] FIG. 13 is a perspective view showing an example of use of the ninth embodiment as a storage unit for cardboard boxes. [Diagram 25] FIG. 1 is a perspective view showing a state in which a new, unused conventional cardboard box is shipped. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] (First embodiment) A cardboard box according to a first embodiment of the present invention will be described. FIG. 1 shows a cardboard box 1 according to the first embodiment in a folded state, and FIG. 2 shows the cardboard box 1 according to the first embodiment in an assembled state. For convenience, the side drawn by a solid line in FIG. 1 is the front side, and the side drawn by a dashed line is the back side. Furthermore, the bottom and lid surfaces of the cardboard box 1 in an assembled state depend on the orientation of the trademark 2, etc., marked on the side wall, and when the trademark 2, etc., is not marked, the bottom and lid surfaces of the cardboard box 1 are not particularly limited. Furthermore, the cardboard box 1 forms an approximately rectangular parallelepiped when assembled, and a cube is also included in the category of rectangular parallelepiped.

[0024] As shown in Fig. 1, the cardboard box 1 is composed of four side surfaces 11-14 and a margin 15 that constitute the side walls, and two pairs of inner flaps 21, 23, 31, 33 and two pairs of outer flaps 22, 24, 32, 34 that are formed continuously from the four side surfaces 11-14 and constitute the lid surface and the bottom surface. For convenience, the inner flaps 21, 23 are referred to as lid inner flaps, the outer flaps 22, 24 as lid outer flaps, the inner flaps 31, 33 as bottom inner flaps, and the outer flaps 32, 34 as bottom outer flaps, depending on the orientation of the trademark 2. In Fig. 2, the lid outer flaps 22, 24 side is referred to as the lid surface, and the bottom outer flaps 32, 34 side is referred to as the bottom surface.

[0025] In the folded state of the cardboard box 1 shown in FIG. 1, regardless of the folding direction, the lid outer flaps 22, 24 overlap only one of the lid inner flaps 21, 23, and the bottom outer flaps 32, 34 overlap only one of the bottom lid inner flaps 31, 33. That is, in the folded state of the cardboard box 1, one outer flap overlaps only one inner flap. On the other hand, in the assembled state of the cardboard box 1 shown in FIG. 2, the lid outer flaps 22, 24 overlap both the lid inner flaps 21, 23, and the bottom outer flaps 32, 34 overlap both the bottom lid inner flaps 31, 33. As shown in FIG. 2, the lid inner flaps 21, 23 and the bottom inner flaps 31, 33 reinforce the lid outer flaps 22, 24 and the bottom outer flaps 32, 34 from the inside when the cardboard box 1 is assembled and in use.

[0026] The folded state of the cardboard box 1 shown in FIG. 1 is formed by punching out a large piece of cardboard into a predetermined shape using a press or the like, and then, for example, folding the boundary line 12A between the second side surface 12 and the third side surface 13 and the boundary line 14A between the fourth side surface 14 and the overlapping margin 15, and bonding the outer surface of the overlapping margin 15 to the inner surface of the first side surface 11. In the first embodiment, the inner lid flap 21 and the outer lid flap 24 are each provided with one through hole or one non-through hole 21A and one non-through hole 24A that opens when pressurized. Here, the non-through hole that opens when pressurized refers to a state in which, when punching out the cardboard using a press or the like, a hole is not punched out completely, but a part of the outer periphery of the part that opens when pressurized to become a through hole is left connected to other parts. The non-through hole may be one that is opened by applying pressure near the center, and the connected part breaks and opens, or it may be one that is folded in the pressure direction from the connected part. For ease of explanation, the following will simply be referred to as a "through hole or non-through hole."

[0027] In the folded state of the cardboard box 1 shown in Fig. 1, the through holes or non-through holes 21A and 24A overlap each other, and are provided at positions where they do not overlap each other in the assembled state shown in Fig. 2. Specifically, the through holes or non-through holes 21A and 24A are provided near the side edges 21S, 24S that separate the lid inner flap 21 and the lid outer flap 24, and at predetermined positions near the cut edges 21F, 24F of the lid inner flap 21 and the lid outer flap 24 (near the upper left ends of the lid inner flap 21 and the lid outer flap 24 in Fig. 1). The size and shape of the through holes or non-through holes 21A and 24A are not particularly limited as long as they satisfy the condition that "the through holes or non-through holes overlap each other when the cardboard box 1 is folded, and do not overlap each other when the cardboard box 1 is assembled." In the first embodiment shown in Figures 1 and 2, the shape of the through holes 21A and 24A is illustrated as being circular, but the shape is not limited to this and may be elliptical, oval, triangular, rectangular, or the like.

[0028] In the folded state of the cardboard box 1 shown in Fig. 1, the through holes or non-through holes 21A and 24A overlap each other, so that a finger can be inserted into the through holes or non-through holes 21A and 24A, a vinyl string can be threaded through them to tie them together, or a guide rod can be inserted therein as described below. On the other hand, in the assembled state of the cardboard box 1 shown in Fig. 2, the through holes or non-through holes 24A of the lid outer flap 24 are blocked by the lid inner flap 21, and the through holes or non-through holes 21A of the lid inner flap 21 are blocked by the lid outer flap 24. Therefore, articles packed inside the cardboard box 1 do not spill out through the through holes or non-through holes 21A and 24A, and foreign objects such as dirt and dust do not enter the inside of the cardboard box 1. In addition, in the case of the non-through holes 21A and 24A, for example, when a product is delivered from a mail order company to an ordinary household, the appearance of the cardboard box 1 does not have through holes, so that the end user, the purchaser of the product, does not feel any difference from a conventional cardboard box and does not feel strange. It is also preferable to print a recycling method for the cardboard box 1 somewhere on the surface of the cardboard box 1. Even if multiple types of cardboard boxes 1 of different sizes are provided with through holes or non-through holes 21A, 24A of the same size at the same positions, when used cardboard boxes 1 are recycled in an ordinary household, the used folded cardboard boxes 1 can be hung from a clothesline or the like by fitting the cardboard boxes 1 to the clothesline or the like from the through holes or non-through holes 21A, 24A provided therein. If the size of the through holes or non-through holes 21A, 24A is made larger than the outer diameter of a clothesline or the like, the folded cardboard boxes 1 can be easily bound with a vinyl string or the like while hanging them from a clothesline or the like. In the cardboard box 1 of the first embodiment, since only one through hole or non-through hole 21A, 24A is provided in each of the lid inner flap 21 and the lid outer flap 24, the folding direction for overlapping the through holes or non-through holes 21A and 24A is limited.

[0029] Second embodiment FIG. 3 shows the cardboard box 1 according to the second embodiment in a folded state, and FIG. 4 shows the cardboard box 1 according to the second embodiment in an assembled state. FIG. 5 shows the cardboard box 1 according to the second embodiment in a folded and stacked state. In the second embodiment, in addition to the lid inner flap 21 and the lid outer flap 24, the lid outer flap 22 and the lid inner flap 23 are provided with through holes or non-through holes 22A and 23A. The through holes or non-through holes 22A and 23A are provided near the side edges 22S, 23S that separate the lid outer flap 22 and the lid inner flap 23, and at predetermined positions near the cut edges 22F, 23F of the lid outer flap 22 and the lid inner flap 23 (near the right upper end of the lid outer flap 22 and the lid inner flap 23 in FIG. 3). In each figure, the through holes or non-through holes 21A and 24A and the through holes or non-through holes 22A and 23A are drawn to have the same shape, but the through holes or non-through holes 21A and 24A and the through holes or non-through holes 22A and 23A may be combined to have different shapes, for example, one being circular and the other being rectangular.

[0030] When a plurality of folded cardboard boxes 1 are stacked with the positions of the through holes or non-through holes 21A-24A aligned, the guide rods 3 can be inserted into the through holes or non-through holes 21A-24A as shown in FIG. 5. In the second embodiment, the cardboard box 1 is provided with the through holes or non-through holes 21A-24A in two places in the folded state. By inserting two guide rods 3 into the through holes or non-through holes 21A-24A, even if the top cardboard box 1a is removed when a plurality of cardboard boxes 1 are stacked, the lower cardboard box 1b does not move, and the stacked cardboard boxes 1 can be prevented from collapsing. As a result, the number of plastic cable ties can be reduced, or brand new, unused cardboard boxes 1 can be shipped without using cable ties. This also reduces the amount of cable ties, which are plastic waste, generated when assembling the cardboard boxes 1. Furthermore, if the through holes or non-through holes 21A to 24A are circular and the guide rod 3 is, for example, a paper tubular body, the weight of the stack of stacked cardboard boxes 1 will hardly increase.

[0031] Third embodiment Fig. 6 shows the cardboard box 1 according to the third embodiment in a folded state, and Fig. 7 shows the cardboard box 1 according to the third embodiment in an assembled state. In the above first embodiment, the lid inner flap 21 and the lid outer flap 22 have the through holes or non-through holes 21A, 24A at only one location, and in the second embodiment, the lid inner flaps 21, 23 and the lid outer flaps 22, 24 have the through holes or non-through holes 21A-24A at only one location, respectively, but in the third embodiment, the lid inner flaps 21, 23 and the lid outer flaps 22, 24 have the through holes or non-through holes 21A-24A, 21B-24B at two locations, respectively, respectively.

[0032] In the cardboard box 1 according to the first or second embodiment, the folding direction is limited so that the through holes or non-through holes 21A, 24A, or 21A-24A overlap in the folded state. When a new, unused cardboard box 1 is shipped, the folding direction is uniform, so there is no problem. However, when a used cardboard box 1 is folded for recycling, it is preferable that the folding direction is not limited. In the cardboard box 1 according to the third embodiment, when the cardboard box 1 is folded in the opposite direction to the folding direction shown in FIG. 6, the through holes or non-through holes 21B of the lid inner flap 21 and the through holes or non-through holes 22B of the lid outer flap 22 overlap, and the through holes or non-through holes 23B of the lid inner flap 23 and the through holes or non-through holes 24B of the lid outer flap 24 overlap, respectively. In addition, as shown in FIG. 7, when the cardboard box 1 is assembled, none of the through holes or non-through holes 21A-24A, 21B-24B overlap. In the third embodiment, a rectangle with rounded corners is exemplified as the shape of the through holes or non-through holes 21A-24A, 21B-24B, but the shape of the through holes or non-through holes 21A-24A, 21B-24B is not limited to this and may be other shapes.

[0033] (Fourth embodiment) Fig. 8 shows the cardboard box 1 according to the fourth embodiment in a folded state, and Fig. 9 shows the cardboard box 1 according to the fourth embodiment in an assembled state. Fig. 10 shows a recycling method for the cardboard box 1 according to the fourth embodiment, where (a) is a front view and (b) is a side view. In the cardboard boxes 1 according to the second and third embodiments, the through holes or non-through holes 21A-24A and 21B-24B are provided in the lid inner flaps 21, 23 and the lid outer flaps 22, 24 that constitute the lid surface. That is, the through holes or non-through holes 21A-24A and 21B-24B are provided in the flaps that are continuously formed in the same direction from the four side surfaces 11-14. In the fourth embodiment, through holes or non-through holes 21A, 24A are provided in one of the lid inner flap 21 and the overlapping lid outer flap 24, and through holes or non-through holes 32A, 33A are provided in one of the bottom outer flap 32 and the overlapping bottom inner flap 33. That is, the through holes or non-through holes 21A, 24A, 32A, 33A are provided in the flaps continuously formed in the opposite directions from the four side surfaces 11 to 14.

[0034] In the fourth embodiment, the through holes or non-through holes 21A, 24A, 32A, and 33A are exemplified as having a triangular shape (inverted equilateral triangle), but the shapes of the through holes or non-through holes 21A, 24A, 32B, and 33B are not limited to this and may have other shapes. When the through holes or non-through holes 21A, 24A, 32A, and 33A are shaped like a triangle, the shape and orientation of the triangle are not particularly limited, but when a worker inserts his / her fingers into the through holes or non-through holes 21A, 24A or 32B and 33A to carry the cardboard box 1, for example, the weight of the cardboard box 1 can be supported by two fingers, which can improve workability and reduce finger fatigue. Also, the corners of the triangle may be rounded.

[0035] As shown in Fig. 10(a), the guide rod 3 is attached horizontally to, for example, the wall surface of a work area or a cart for collecting cardboard boxes, and a used cardboard box 1 is folded and inserted into the guide rod 3 through the through holes or non-through holes 21A, 24A or 32A, 33A, and the cardboard box 1 is hung on the guide rod 3. When the shape of the through holes or non-through holes 21A is triangular, if the outer diameter of the guide rod 3 is made smaller than the outer diameter of the circle inscribed in the triangle, a gap is formed near the apex of the triangle between the guide rod 3 and the through holes 21A, 24A, 32A, 33A, and a vinyl string 4 or the like can be inserted through the gap to easily bind the stacked cardboard boxes 1. The same applies when the shape of the through holes or non-through holes 21A is rectangular, elliptical, or oval. Even if the multiple cardboard boxes 1 to be hung are different sizes, as long as the through holes or non-through holes 21A, 24A or 32A, 33A are provided in the same positions, the weight of the cardboard boxes 1 will allow them to be aligned to a certain extent, even if there is some misalignment. Therefore, as in the conventional case, the bundling work is easy even when tying the sides of multiple bundled cardboard boxes 1 with vinyl string. As mentioned above, the same applies when hanging cardboard boxes 1 from a clothesline when recycling them in an ordinary household.

[0036] Alternatively, as shown in Fig. 10(b), slits 3a parallel to the central axis may be formed in the outer periphery of the guide rod 3, and the vinyl string 4 may be inserted in advance along the slits 3a. This makes it possible to omit the step of inserting the vinyl string into the through holes or non-through holes 21A, 24A or 32A, 33A of the stacked cardboard boxes 1, facilitating the recycling process of the cardboard boxes 1. When the guide rod 3 is provided with slits 3a, the step of inserting the vinyl string can be similarly omitted even if the through holes or non-through holes 21A, 24A or 32A, 33A of the cardboard boxes 1 are circular in shape.

[0037] Fifth embodiment FIG. 11 shows the folded state of the cardboard box 1 according to the fifth embodiment, and FIG. 12 shows the assembled state of the cardboard box 1 according to the fifth embodiment. In the fifth embodiment, an example is shown in which the bottom inner flaps 31, 33 and the bottom outer flaps 32, 34 are provided with through holes or non-through holes 31A-34A, 31B-34B at two locations, respectively, in contrast to the third embodiment. As described above, in a state in which the trademark 2, etc. is not written, the bottom surface and the lid surface of the cardboard box 1 are not particularly limited, so the cardboard box 1 according to the third embodiment is essentially printed with the trademark 2, etc. in the reverse direction and turned upside down. In the fifth embodiment, it is preferable that the holes 31A-34A, 31B-34B are through holes, and in the case of non-through holes, the non-through holes are pressurized and opened in advance at the stage of assembling the cardboard box 1. As a result, when the cardboard box 1 is assembled into a box shape, the through holes 32A, 32B, 34A, and 34B provided in the outer bottom flaps 32, 34 are exposed at the bottom surface, so that, as with the cardboard box described in Patent Document 1, fingers can be hooked into the through holes 32A, 32B, 34A, and 34B, making it easy to carry the cardboard box 1.

[0038] Sixth embodiment Fig. 13 shows the cardboard box 1 according to the sixth embodiment in a folded state, and Fig. 14 shows the cardboard box 1 according to the sixth embodiment in an assembled state. Fig. 15 shows an example of use of the cardboard box 1 according to the sixth embodiment. In the sixth embodiment, an example is shown in which through holes or non-through holes 21A-24A are provided in the lid inner flaps 21, 23 and the lid outer flaps 22, 24, and through holes or non-through holes 31A-34A are provided in the bottom inner flaps 31, 33 and the bottom outer flaps 32, 34. In the sixth embodiment, it is preferable that the holes 21A-24A, 31A-34A are through holes, and in the case of non-through holes, the non-through holes are pressurized and opened in advance at the stage of assembling the cardboard box 1. As a result, as shown in Figure 15, when the cardboard boxes 1 are assembled and two cardboard boxes 1 are stacked vertically, the through holes 32A, 34A provided in the bottom outer flaps 32, 34 of the upper cardboard box 1 face the through holes 22A, 24A provided in the lid outer flaps 22, 24 of the lower cardboard box 1.

[0039] In the process of manufacturing the cardboard box 1, when the cardboard plate is punched by a press, many chips having the same shape as the through holes 21A-24A, 31A-34A are generated. In FIG. 15, the adapter 4 is made by bonding two chips generated during the manufacturing of the cardboard box 1 in the vertical direction, and functions to connect the assembled cardboard box 1 in the vertical direction. The chips have the same thickness as the lid outer flaps 22, 24 and bottom outer flaps 32, 34 of the cardboard box 1, and the through holes 22A, 24A, 32A, 34A provided in these outer flaps are blocked by the lid inner flaps 21, 23 and bottom inner flaps 31, 33. Therefore, when the adapter 4 is fitted into the through holes 22A, 24A of the lid outer flaps 22, 24 of the lower cardboard box 1, the upper half of the adapter 4 protrudes upward from the lid outer flaps 22, 24. By fitting the through holes 32A, 34A of the bottom outer flaps 32, 34 of the upper cardboard box 1 into the protruding portion of the adapter 4, the two cardboard boxes 1 are joined in the vertical direction. As a result, when multiple cardboard boxes 1 containing products or the like are stacked and transported, they are less likely to shift position or collapse, making the transport work more efficient. Since the adapter 4 is made of the same paper material as the cardboard boxes 1, the adapter 4 can be recycled at the same time as the used cardboard box 1 is recycled. The adapter 4 may be a separate resin molded product, but this is not preferable from the standpoint of recycling and reducing plastic waste.

[0040] Seventh embodiment FIG. 16 shows the cardboard box 1 according to the seventh embodiment in a folded state, and FIG. 17 shows the cardboard box 1 according to the seventh embodiment in a reassembled state as a stocker 1S for temporarily storing used cardboard boxes. FIG. 18 shows an example of using the cardboard box 1 according to the seventh embodiment as a stocker 1S. In a typical household, used cardboard boxes are folded and stacked and stored against a balcony wall or the like until they are sent for recycling. However, it is difficult to stack and store multiple cardboard boxes of different sizes, and the load is likely to collapse when the wind blows. In the seventh embodiment, an example is shown in which the cardboard box 1 can be reused as a stocker 1S for temporarily storing other used cardboard boxes 5. In the cardboard box 1 according to the seventh embodiment, as in a typical cardboard box, on the lid side, flaps 22, 24 formed continuously from the side surfaces 12, 14 constituting the long sides are regarded as outer-lid flaps, and flaps 21, 23 formed continuously from the side surfaces 11, 13 constituting the short sides are regarded as inner-lid flaps. On the other hand, since the bottom side has the characteristic portion of the seventh embodiment described later, flaps 31, 33 formed continuously from the side surfaces 11, 13 constituting the short sides are regarded as outer-bottom flaps, and flaps 32, 34 formed continuously from the side surfaces 12, 14 constituting the long sides are regarded as inner-bottom flaps.

[0041] As shown in Fig. 16, the bottom flaps 32, 34 are additionally formed with approximately trapezoidal overhangs 35, 36 that protrude outward and become the bottom surface when used as a stocker 1S. In addition, on the boundary line 35A between the bottom flaps 32 and the overhangs 35 and at the portion where the bottom flaps 32 and 34 overlap, a coupling hook 35B and a through hole 35C that function as a coupling portion for coupling the overhangs 35 and the overhangs 36 are formed. Similarly, on the boundary line 36A between the bottom flaps 34 and the overhangs 36 and at the portion where the bottom flaps 32 and 34 overlap, a coupling hook 36B for insertion into the through hole 35C is formed so as to protrude further outward from the overhangs 36. Furthermore, the coupling hook 36B is formed with a through hole 36C for inserting the coupling hook 35B. The connecting hooks 35B, 36B and the through holes 35C, 36C function as connecting parts for connecting the protruding part 35 of the in-bottom flap 32 and the protruding part 36 of the in-bottom flap 34 together.

[0042] When reassembling a used cardboard box 1 as a stocker, as shown in FIG. 17, the cardboard box 1 is stood up so that the bottom outer flaps 31, 33 and the bottom inner flaps 32, 34 are on top, the boundary line 35A between the bottom inner flap 32 and the overhanging portion 35 and the boundary line 36A between the bottom inner flap 34 and the overhanging portion 36 are mountain-folded, and the overhanging portion 35 and the overhanging portion 36 are folded over. Next, the connecting hook 35B is once folded outward to fully open the through hole 35C, and the connecting hook 36B is folded downward and inserted into the through hole 35C. Finally, the connecting hook 35B is folded in the opposite direction and inserted into the through hole 36C. As a result, a stocker 1S is formed with the overhanging portion 35 of the bottom outer flap 32 and the overhanging portion 36 of the bottom outer flap 34 as the bottom surface. The bottom surface of the assembled stocker 1S is formed by folding over the overhanging portions 35 and 36, so that it is approximately hexagonal, but the horizontal cross section of the storage area formed by the side surfaces 11-14, the lid inner flaps 21, 23, the lid outer flaps 22, 24, the bottom outer flaps 31, 33, and the bottom inner flaps 32, 34 is approximately a parallelogram (since the side surfaces 11-14 of a used cardboard box 1 are deformed, it is often not an exact parallelogram). In the following explanation, for convenience, the horizontal cross section of the stocker 1S will be described as a "parallelogram."

[0043] As shown in Figure 18, when stocker 1S is turned upside down and overhanging portions 35 and 36 are placed at the bottom, a space with a parallelogram horizontal cross section is formed inside the storage section formed by side surfaces 11-14, lid inner flaps 21, 23, lid outer flaps 22, 24, bottom outer flaps 31, 33, and bottom inner flaps 32, 34, and other used cardboard boxes 5 can be stored therein. When cardboard box 1 is used as stocker 1S, by reassembling it so that the horizontal cross section of the storage section is a parallelogram, it is possible to store used cardboard boxes 5 of a larger size compared to when cardboard box 1 is simply reassembled into a rectangular parallelepiped. As can be seen from Figures 16 to 18, by increasing the amount of projection of projections 35, 36 (corresponding to the length W of the shorter diagonal of the parallelogram), the number of used cardboard boxes that can be stored in stocker 1S can be increased, but the maximum dimension of the used cardboard boxes that can be stored (corresponding to the length D of the longer diagonal of the parallelogram) becomes smaller. To be usable as stocker 1S, the cross section of the parallelogram needs to have a certain amount of area and the lengths D and W of the two diagonals. Therefore, the amount of projection W of projections 35, 36 can be selected appropriately depending on the size and length of bottom inner flaps 31, 33 and bottom outer flaps 32, 34 of cardboard box 1.

[0044] As the cardboard box 1 according to the seventh embodiment, in addition to the through holes or non-through holes 21A, 24A provided in the lid inner flap 21 and the lid outer flap 24, the lid outer flap 22 and the lid inner flap 23 may be provided with through holes or non-through holes 22A, 23A, as in the cardboard box 1 according to the second embodiment shown in FIG. 3. As a result, for example, when other used cardboard boxes 5 are stored in the stocker 1S, the used cardboard box 5 can be transported together with the stocker 1S to a collection site for cardboard boxes by hooking fingers on the through holes or non-through holes 21A, 24A and the through holes or non-through holes 22A, 23A. Alternatively, when the used cardboard box 5 is stored in the stocker 1S, it is also possible to tie the used cardboard box 5 together with the stocker 1S with a vinyl string. This makes it easier to recycle used cardboard boxes in ordinary households.

[0045] Eighth embodiment Fig. 19 shows the cardboard box 1 according to the eighth embodiment in a folded state, Fig. 20 shows the cardboard box 1 according to the eighth embodiment in the middle of being reassembled, and Fig. 21 shows the cardboard box 1 according to the eighth embodiment in a reassembled state as a stocker 1S for temporarily storing used cardboard boxes. As with the seventh embodiment, the eighth embodiment shows an example in which the cardboard box 1 according to the present invention can be reused as a stocker 1S for temporarily storing other used cardboard boxes. In the eighth embodiment, no overhanging portion is provided on the bottom outer flaps 32, 34 of the cardboard box 1, and parts of the bottom outer flaps 32, 34 are folded inward and the bottom inner flaps 31, 33 are joined to the bottom outer flaps 32, 34 to form the bottom when reused as the stocker 1S.

[0046] As shown in Fig. 19, the bottom inner flaps 31, 33 are each approximately trapezoidal, and the coupling hooks 31N, 33N are formed so as to protrude outward from the oblique sides 31M, 33M of the approximately trapezoidal shape. The bottom outer flaps 32, 34 are formed with folding lines 32L, 34L parallel to the oblique sides 31M, 33M of the bottom inner flaps 31, 33. In addition, on the boundary line 32J between the bottom outer flap 32 and the side surface 12, and at the portion facing the coupling hook 33N, a cut 32K is formed so as to protrude from the side surface 12 to the bottom outer flap 32 side. Similarly, on the boundary line 34J between the bottom outer flap 34 and the side surface 14, and at the portion facing the coupling hook 31N, a cut 34K is formed so as to protrude from the side surface 14 to the bottom outer flap 34 side. 19 to 21, right-angled triangular folded portions 32P, 34P that are folded inward along folding lines 32L, 34L of the bottom outer flaps 32, 34 are shown shaded.

[0047] When reassembling a used cardboard box 1 as a storage unit, as shown in Fig. 20, the cardboard box 1 is stood up so that the inner bottom flaps 31, 33 and the outer bottom flaps 32, 34 are on top, the folding lines 32L, 34L of the outer bottom flaps 32, 34 are folded inwards, and the folded parts 32P, 34P are inserted inside the side surfaces 13, 14, respectively. Since no folding lines are formed along the boundary lines 32J, 34J at the portions of the incisions 32K, 34K, when the outer bottom flaps 32, 34 are folded inwards along the boundary lines 32J, 34J, the portions of the incisions 32K, 34K stand upright, and through holes 32Q, 34Q are formed in the outer bottom flaps 32, 34.

[0048] Next, as shown in Fig. 21, the bottom inner flaps 31, 33 are mountain-folded along the boundary lines 31J, 33J with the side surfaces 11, 13, respectively, and the connecting hooks 31N, 33N are mountain-folded along the oblique sides 31M, 33M and inserted into the through holes 32Q, 34Q of the bottom outer flaps 32, 34. As a result, a stocker 1S is formed with the bottom inner flaps 31, 33 and the bottom outer flaps 32, 34 as the bottom surface. The connecting hooks 31N, 33N and the through holes 32Q, 34Q function as connecting parts for connecting the bottom inner flaps 31, 33 to the bottom outer flaps 32, 34, respectively.

[0049] The bottom surface of the stocker 1S in the eighth embodiment is also hexagonal, but the horizontal cross section of the storage section formed by the side surfaces 11-14, the lid inner flaps 21, 23, and the lid outer flaps 22, 24 is substantially a parallelogram. The length W of the shorter diagonal of the parallelogram is substantially the same as the length of the short side of the bottom outer flaps 32, 34. The other features are the same as those of the seventh embodiment, except that the bottom inner flaps 31, 33 and the bottom outer flaps 32, 34 do not contribute to the side walls of the storage section of the stocker 1S.

[0050] Ninth embodiment FIG. 22 shows the cardboard box 1 according to the ninth embodiment in a folded state, and FIG. 23 shows the cardboard box 1 according to the ninth embodiment in a reassembled state as a stocker 1S for temporarily storing used cardboard boxes. FIG. 24 shows an example of using the cardboard box 1 according to the ninth embodiment as a stocker 1S. As with the seventh and eighth embodiments, the ninth embodiment shows an example in which the cardboard box 1 according to the present invention can be used as a stocker 1S for temporarily storing other used cardboard boxes. In the ninth embodiment, no overhanging portion is provided on the bottom outer flaps 32, 34 of the cardboard box 1, and the bottom inner flaps 31, 33 are folded inward and parts of the bottom outer flaps 32, 34 are joined to form the bottom when used as the stocker 1S.

[0051] As shown in Fig. 22, the bottom outer flaps 32, 34 have slits 32R, 34R formed at the side edges 32S, 34S of the overlapping portions of the bottom outer flaps 32, 34, and at approximately the center of the side edges 32S, 34S of the bottom outer flaps 32, 34. The width of the slits 32R, 34R is set to be approximately the same as the thickness of the cardboard plate that is the material of the cardboard box 1, and is set to a slightly larger value. The portions of the bottom outer flaps 32, 34 between the slits 32R, 34R and the cut edges 32F, 34F are called connecting hooks 32N, 34N. The rest of the configuration is approximately the same as that of the cardboard box 1 of the second embodiment shown in Fig. 3, for example.

[0052] When a used cardboard box 1 is reassembled as a storage unit, as shown in Fig. 23, the cardboard box 1 is stood up with the inner bottom flaps 31, 33 and the outer bottom flaps 32, 34 facing up, and the inner bottom flaps 31, 33 are mountain-folded along the boundary lines 31J, 33J with the side surfaces 11, 13, respectively, and folded over so that the inner surfaces of the inner bottom flaps 31, 33 are almost in close contact with the inner surfaces of the side surfaces 11, 13, respectively. In Figs. 23 and 24, the inner bottom flaps 31, 33 folded over on the inside of the side surfaces 13, 14 are shown by shading. Next, the outer bottom flaps 32, 34 are mountain-folded along the boundary lines 32J, 34J, respectively, and the slits 32R of the outer bottom flap 32 and the slits 34R of the outer bottom flap 34 are overlapped while bending the joining hooks 32N, 34N outward from each other, and the outer bottom flap 32 and the outer bottom flap 34 are joined. As a result, a stocker 1S is formed with the bottom outer flaps 32, 34 as its bottom surface. The slits 32R, 34R function as joining portions for joining the bottom outer flap 32 and the bottom outer flap 34 together.

[0053] The bottom surface of the stocker 1S in the ninth embodiment is substantially rectangular, and the cross section of the storage section formed by the side surfaces 11-14, the lid inner flaps 21, 23, and the lid outer flaps 22, 24 is substantially parallelogram-shaped. The length W of the shorter diagonal of the parallelogram is substantially the same as the length of the short side of the bottom outer flaps 32, 34. Other features are the same as those of the seventh embodiment, except that the bottom inner flaps 31, 33 and the bottom outer flaps 32, 34 do not contribute to the side walls of the storage section of the stocker 1S.

[0054] 24, in the reused state as the stocker 1S, the bottom surface of the stocker 1S that comes into contact with, for example, the floor surface of the ground or a balcony is substantially rectangular, and therefore the contact area is larger than in the case of a hexagonal shape as in the seventh or eighth embodiment. Therefore, even when a long and narrow cardboard box is stored in the folded state, the position of the stocker 1S is stable, and the possibility that the used cardboard box 5 will tip over together with the stocker 1S is reduced.

[0055] As described above, according to the cardboard box 1 of the present invention, of the two pairs of outer flaps 22, 24 and 32, 34 that constitute the lid surface and bottom surface, and the two pairs of inner flaps 21, 23 and 31, 33, at least one outer flap (for example, outer flap 24 in Figure 1) and at least one inner flap (inner flap 21 in Figure 1) are provided with through holes or non-through holes (through holes or non-through holes 21A, 24A in Figure 1) at positions that overlap each other when the cardboard box 1 is folded, but do not overlap each other when the cardboard box 1 is assembled.

[0056] In the case where the holes 21A and the like are through holes, when assembling new, unused cardboard boxes 1, if guide rods 3 are fitted into the through holes (21A, 24A, 22A, 23A) of the stacked cardboard boxes 1 as shown in FIG. 5, the stacked cardboard boxes 1 will hardly collapse even if the cable ties are cut. When stacked cardboard boxes 1 are taken out one by one from the top and assembled, it is possible to take out only the top cardboard box 1 without disturbing the stacked state. Even if there is only one guide rod 3, the lower cardboard boxes 1 may rotate slightly around the guide rod 3, but they will not fall to the ground, and the stacked cardboard boxes 1 will not collapse. Therefore, in a workshop where a large number of cardboard boxes are used every day, there is no need for a wasteful process such as re-stacking collapsed cardboard boxes 1, improving the workability of assembling the cardboard boxes 1.

[0057] Furthermore, as shown in FIG. 5, when at least two outer flaps 22, 24 and at least two inner flaps 21, 23 are provided with through holes 21A, 24A and 22A, 23A, if two guide rods 3 are fitted in the through holes 21A, 24A and 22A, 23A of the cardboard box 1 beforehand when shipping a brand new, unused cardboard box 1, the stacked cardboard boxes 1 are less likely to collapse during transportation. As a result, the number of cable ties can be reduced or cable ties can be eliminated. In addition, since the surface of the cardboard boxes 1 bound by the guide rods 3 can be made flat, even when a large number of cardboard boxes 1 are transported on a dolly or the like in a work site, the possibility that the bound cardboard boxes 1 themselves will collapse due to vibration or the like can be reduced. Furthermore, since the amount of cable ties to be discarded can be reduced, the worker's hand is less bothered when disposing of the cable ties 101 after cutting, and the problem of environmental pollution is improved.

[0058] Furthermore, when recycling used cardboard boxes 1, multiple cardboard boxes 1 can be easily bundled together by folding multiple cardboard boxes 1 so that their through holes or opened non-through holes 21A, 24A overlap, and then fitting each cardboard box 1 onto a horizontally arranged guide rod 3 through the through holes or opened non-through holes 21A, 24A, as shown in Figure 10(b), for example.

[0059] Furthermore, if the cardboard box 1 can be used as a stocker 1S for temporarily storing other used cardboard boxes 5 after it has been used as a box for packaging products, the storage and subsequent recycling of used cardboard boxes in an ordinary household will be easier than, for example, storing used cardboard boxes by leaning them against a wall or the like. Also, by reassembling the cardboard box 1 so that the horizontal cross section of the storage section formed by at least four side surfaces 11-14, the inner lid flaps 21, 23, and the outer lid flaps 22, 24 is a substantially parallelogram, it will be possible to store and keep used cardboard boxes 5 of a larger size than if the cardboard box 1 were simply reassembled into a rectangular parallelepiped.

[0060] The guide rod 3 according to the present invention is fitted into the through holes or the opened non-through holes 21A-24A, 31A-34A provided in any of the above-mentioned cardboard boxes 1, and has a slit 3a parallel to the central axis provided on its outer periphery. Therefore, for example, if the guide rod 3 is fixed horizontally, a vinyl string 4 is inserted in advance into the slit 3a provided in the central axis direction of the guide rod 3, and the folded cardboard box 1 is fitted into the guide rod 3 from the through holes or the opened non-through holes 21A-24A, 31A-34A, when a plurality of cardboard boxes 1 are fitted, the vinyl string is inserted into the through holes or the opened non-through holes 21A-24A, 31A-34A of each cardboard box 1, so that in the recycling work, the process of inserting the vinyl string 4 into the through holes or the opened non-through holes 21A-24A, 31A-34A of the cardboard box 1 can be omitted. [Explanation of symbols]

[0061] 1 cardboard box 2 Trademarks 3 Guide rod 3a Slit 4 Plastic string 5. Other used cardboard boxes 11~14 Side 15 Glue 21,23 Inner flap 22,24 Outer lid flap 21A~24A, 21B~24B Through holes or non-through holes 21S~24S side edge 21F~24F Cutting edge 31,33 Bottom flap 32,34 Bottom outer flap 31A-34A, 31B-34B Through holes or non-through holes 31M,33M hypotenuse 31N~34N Connecting hook 32F,34F Cut edge 32J,34J border 32K, 34K Cutting 32L, 34L bending lines 32P, 34P Bending part 32Q,34Q through hole 32R,34R slit 32S,34S side edge 35,36 Overhang 35A,36A boundary line 35B, 36B Connecting hook 35C,36C through hole

Claims

1. A cardboard box that is approximately rectangular when assembled, The container has four side surfaces constituting a side wall, two pairs of outer flaps each formed continuously from the four side surfaces and constituting a lid surface and a bottom surface, and two pairs of inner flaps each reinforcing the two pairs of outer flaps from the inside, At least one outer flap of the two pairs of outer flaps and at least one inner flap of the two inner flaps that overlaps with the at least one outer flap when the cardboard box is assembled are provided with through holes or non-through holes that open when pressurized, at positions that overlap with each other when the cardboard box is folded and do not overlap with each other when the cardboard box is assembled, The cardboard box is characterized in that the through hole or the non-through hole is provided near a side edge that separates the at least one outer flap and the at least one inner flap when the cardboard box is in a folded state, and near a cut edge of the at least one outer flap and the at least one inner flap.

2. A cardboard box that is approximately rectangular when assembled, The container has four side surfaces constituting a side wall, two pairs of outer flaps each formed continuously from the four side surfaces and constituting a lid surface and a bottom surface, and two pairs of inner flaps each reinforcing the two pairs of outer flaps from the inside, At least one outer flap of the two pairs of outer flaps and at least one inner flap of the two inner flaps that overlaps with the at least one outer flap when the cardboard box is assembled are provided with through holes or non-through holes that open when pressurized, at positions that overlap with each other when the cardboard box is folded and do not overlap with each other when the cardboard box is assembled, The cardboard box is characterized in that the through hole or the non-through hole is provided near a side edge that separates the at least two outer flaps and the at least two inner flaps when the cardboard box is in a folded state, and near a cut edge of the at least two outer flaps and the at least two inner flaps.

3. A cardboard box as described in claim 2, characterized in that the at least two outer flaps and the at least two inner flaps each have the through holes or non-through holes in two locations.

4. A cardboard box as described in claim 2 or claim 3, characterized in that of the at least two outer flaps and the at least two inner flaps, at least one outer flap and at least one inner flap constitute the lid surface, and the other at least one outer flap and at least one inner flap constitute the bottom surface.

5. A cardboard box as described in any one of claims 1 to 4, characterized in that the shape of the through holes or the non-through holes is any one or a combination of two or more selected from the group consisting of circular, elliptical, oval, triangular, and rectangular.

6. After being used as a box for packaging goods, the cardboard box can be reassembled as a storage unit for temporarily storing other used cardboard boxes, a storage section of the stocker is formed by at least the four side surfaces and a pair of outer flaps and a pair of inner flaps constituting a lid surface out of the two pairs of outer flaps and the two pairs of inner flaps, a bottom surface of the stocker is formed by at least two of the pair of outer flaps and the pair of inner flaps that constitute a bottom surface of the stocker, The horizontal cross section of the storage section is substantially a parallelogram.

6. The cardboard box according to claim 1, wherein the cardboard box is made of a material selected from the group consisting of acrylic and polyester.

7. A cardboard box as described in Claim 6, characterized in that each of the pair of outer flaps or the pair of inner flaps constituting the bottom surface has a connecting portion formed for connecting to the other outer flap or the other inner flap.

8. A cardboard box as described in claim 6, characterized in that each of a pair of inner flaps constituting the bottom surface is formed with a joining portion for joining to the pair of outer flaps.

9. A guide rod that is fitted into a through hole or a non-through hole that opens when pressurized, provided in a cardboard box described in any one of claims 1 to 8, characterized in that a slit parallel to the central axis is provided on the outer periphery of the guide rod.

Images