JP3140794U - Disassembleable cardboard box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decomposable cardboard box which can be easily disassembled without using a tool, and which can hold a heavy object while maintaining strength.
In a releasable corrugated cardboard box in which each face plate constituting the corrugated cardboard box can be disassembled by being separated along a fold line 6c, a first cut 6a is formed at a predetermined interval along the fold line 6c. A plurality of second cuts 6b that are inclined at a predetermined angle with respect to the fold line 6c are formed at one end portion on the same side of each first cut 6a so as to communicate with the first cut 6a. Fold line 6c side of the angle θ in the range of 20 to 90 ° relative to the fold line 6c of the second cut 6b, distance _{L 2} between the first cut 6a in the range of 3~10mm is desirable.
[Selection] Figure 2

Description

  The present invention relates to a cardboard box that can be easily disassembled.

  Conventionally, disposal after use of a cardboard box is performed by opening the outer flap and the inner flap, folding the opposing side plates so as to overlap each other, and forming a flat shape. Moreover, when it is difficult to fold compactly, each faceplate is cut off along the fold line and disposed. Scissors and cutters were used for this separation, but the scissors were difficult to cut and the cutters could be injured. In addition, when the tool could not be prepared, it was broken by hand, which involved labor.

Thus, a corrugated cardboard box that solves the above problem has been proposed in Patent Document 1. In this technique, perforations are formed at required portions of the face plate, and by disassembling into a plurality of sheets along the perforations at the time of disposal, it is possible to easily disassemble and dispose of them without using tools. However, the perforation has a problem that the gap between the cuts is small, so that the strength is insufficient, and it is easily damaged when a heavy object is accommodated.
JP 2004-182328 A

  The problem to be solved by the present invention is to solve these conventional problems, and can be easily disassembled without using tools, and can be disassembled while maintaining strength and accommodating heavy objects. Is to provide.

The configuration of the present invention that solves this problem is as follows.
1) A releasable cardboard box in which each face plate constituting a cardboard box can be separated and disassembled along a fold line, and a plurality of first cuts are formed at predetermined intervals along the fold line. A disassembleable corrugated cardboard, characterized in that a second cut inclined at a predetermined angle with respect to the folding line is formed at one end of the same side of each first cut so as to communicate with the first cut. Box 2) The angle on the fold line side of the second cut is in the range of 20 to 90 ° with respect to the fold line, and the interval between the first cuts is in the range of 3 to 10 mm. It is in a cardboard box that can be disassembled.

  According to the present invention, when separating from the direction having the second cut, when the first fold line breaks, the transition is made to the first cut continuous with the fold line, and when the next fold line breaks, Transition to the next first cut that is continuous with the fold line. Therefore, since the separation along the fold line can always be performed, even if the interval between the first cuts is larger than the interval between the conventional perforations, it can be easily separated with some force.

  On the contrary, in the case of separating from the direction opposite to the second cut, when the first fold line breaks and shifts to the first cut continuous with the fold line, the first cut and There is a transition to the oblique second cut that is in communication, and there is no fold line or the next first cut beyond the end of the second cut. Therefore, if it tries to cut | disconnect as it is, the area | region without a cut | interruption will be forcibly fractured | ruptured, and it will become difficult to cut off along a fold line.

  In this way, since only separation from one direction has been facilitated, when used as a cardboard box, it is possible to accommodate heavy objects without hindrance with a large distance between the first cuts, and when disposing It can be easily disassembled without using tools by separating it from a direction that is easy to separate. In addition, even if a load that breaks at the perforation line is applied to the fold line during use, if the direction to break is difficult to separate, the breakage progress is suppressed, and the cardboard box breaks. Can be reduced.

  In the present invention, the angle on the fold line side of the second cut is preferably in the range of 20 to 90 ° with respect to the fold line. If the angle is less than 20 °, the distance between the end of the second cut and the end of the adjacent first cut becomes small, and when separating from the direction opposite to the second cut, It becomes easy to shift to the first cut, and the separation from both directions becomes easy, and the strength of the cardboard box cannot be maintained. On the other hand, if it is 90 ° or more, the distance between the end of the second cut and the end of the adjacent first cut becomes large, and when separating from the direction opposite to the second cut, from the end of the first cut It becomes difficult to shift to the second cut, and it becomes easy to move to the next first cut, and separation from both directions becomes easy, and the strength of the cardboard box cannot be maintained.

  The interval between the first cuts is practically in the range of 3 to 10 mm. If it is 3 mm or less, the strength as a cardboard box is insufficient, and if it is 10 mm or more, separation by hand becomes difficult. Embodiments of the present invention will be specifically described below with reference to the drawings.

  1 is a development view of the cardboard box of the embodiment, FIG. 2 is an enlarged view of the cut of the embodiment, FIG. 3 is a perspective view of the cardboard box of the embodiment, and FIGS. 4 and 5 are explanatory views showing separation of the embodiment. . In the figure, 1 is a cardboard, 2 is a side plate, 3 is an inner flap, 4 is an outer flap, 5 is a splice, 6 is a cut, 6a is a first cut, 6b is a second cut, and 6c is a fold line. is there.

  As shown in FIG. 1, the corrugated cardboard 1 of this embodiment forms a side plate 2, an inner flap 3 and an outer flap 4 with one rectangular double-sided corrugated cardboard, and joins it to the side of one end plate 2. 5 is formed, and cuts 6 are formed in all portions that are bent during assembly.

As shown in FIG. 2, a plurality of first cuts 6a are formed at equal intervals along the fold line 6c, and the second cut 6b is folded at one end on the same side of the first cut 6a. The angle θ on the side of the bend line 6c is formed so as to be inclined at 45 ° with respect to the bend line 6c and communicated with the first cut 6a. The length _{L 1} of the first slit 6a is 6 mm, the interval _{L 2} between the first cut 6a (the length of the fold line 6c) is 7 mm, the length _{L 3} of the second cut 6b is formed on 5mm , the length L ₁ and spacing L ₂ is larger than the conventional perforations. When this cardboard 1 is assembled, the form shown in FIG. 3 is obtained.

Hereinafter, an example in which the outer flap 4 is separated from the side plate 2 will be described. As shown in FIG. 4 (a), when the outer flap 4 is held and an attempt is made to cut away from the direction having the second cut 6b, the first fold line 6c breaks and shifts to the first cut 6a. As shown in FIG. 4 (b), the next fold line 6c breaks and shifts to the next first cut 6a, and the fold line 6c continuously breaks one after the other so that the outer flap 4 is connected to the side plate 2 as shown in FIG. Detached from. Thus, even if the length (interval L ₂ ) of the fold line 6c is larger than that of the conventional perforation, the fold line 6c can be separated linearly along the fold line 6c without using a tool, requiring a large force. do not do.

  On the other hand, when separating from the direction opposite to the second cut 6b, as shown in FIG. 5A, when the first fold line 6c breaks and shifts to the first cut 6a, the first cut If it moves to the diagonal 2nd cut | interruption 6b connected with the cut | interruption 6a and tries to cut | disconnect as it is, as shown in FIG.5 (b), the terminal end of the 2nd cut | interruption 6b will spread, and the next fold line The area | region which does not have 6c and the 1st cut | interruption 6a will be fractured | ruptured, and separation along the fold line 6c will become difficult. Also, it takes a lot of power to try to force it off. Thus, separation from the opposite side is not easy.

  The technology of the present invention can be applied to cardboard boxes and other general paper boxes made of cardboard.

It is an expanded view of the cardboard box of an Example. It is an enlarged view of the cut | interruption of an Example. It is a perspective view of the cardboard box of an example. It is explanatory drawing which shows isolation | separation of an Example. It is explanatory drawing which shows isolation | separation of an Example.

Explanation of symbols

1 Corrugated board 2 Side plate 3 Inner flap 4 Outer flap 5 Joint 6 Cut 6a First cut 6b Second cut 6c Folding line

Claims (2)

  In a releasable corrugated cardboard box in which each face plate constituting the cardboard box can be separated and disassembled along a fold line, a plurality of first cuts are formed at predetermined intervals along the fold line, A disassembling cardboard box, wherein a second cut inclined at a predetermined angle with respect to the fold line is formed at one end of the same side of the first cut so as to communicate with the first cut.   The angle of the fold line side of the second cut line is in the range of 20 to 90 ° with respect to the fold line, and the interval between the first cut lines is in the range of 3 to 10 mm. Cardboard box.

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