JP4428637B2 - Volume reduction carton - Google Patents

Description

  The present invention relates to a volume-reducing carton, that is, a volume-reducing carton that can be easily folded after use and discarded in a reduced volume state.

In recent years, environmental problems have become a major problem, and awareness of protecting the natural environment has increased. In particular, waste disposal is a major problem, and there is a need for resource saving that uses as little material as possible, and measures such as recycling, which is the reuse of resources. Against this background, it is also desired to reduce the volume as much as possible when discarding containers used for packaging. Conventionally, in a box (carton) using paperboard, it becomes an empty box after use, and it becomes bulky, so it crushes, peels off the glued part, uses hands or scissors, etc. Dismantled to reduce volume and discard. This work is time-consuming, especially in a sealed end carton that is widely used due to its simple shape and good suitability for high-speed filling and packaging. One of the sealing end parts (top part) has an opening function with a zipper or the like. Although applied, the other seal end (bottom) is in a sealed state and is difficult to disassemble. Some cartons already have an example of a shape provided with a ruled line for assisting folding as shown in FIG. 9 for the purpose of reducing the volume of the carton after use (see, for example, Patent Document 1). .)
Japanese Patent Laid-Open No. 11-321848

  However, as shown in FIG. 5, the method of providing a ruled line for assisting folding has already been put into practical use, but the method of folding the center part of the side plate of the carton into the inner side has been put to practical use. Can be seen, which is not preferable in appearance and has a problem of impairing the design. In addition, when the same shape opening means such as a zipper is provided on both the upper and lower sides of the carton, the opening direction is wrongly opened, so a display is required, the designability is impaired, and the strength is reduced. is there.

  The present invention has been found to solve the above problems, and in a sealed end carton that opens the top, the design direction is not impaired, the opening direction is not mistaken, and the compression strength is high. An object of the present invention is to provide a volume-reducing carton capable of reducing the volume after use in a form that does not cause a decrease.

In order to solve the above problems, the present invention provides a body portion formed of a side plate, a front plate, a rear plate, and a side plate, and is connected to the upper side of the front plate on the ceiling plate that is connected to the upper side of the rear plate. The top plate is overlapped and bonded to form the top, and the bottom plate connected to the lower side of the front plate is stacked on the bottom inner plate connected to the lower side of the rear plate to form the bottom. A carton having an opening function in the top part, and a knob part is provided by a knob part cut line at a lower edge central part of the rear plate, and the bottom inner plate includes the rear plate and the bottom inner plate. A break break line is continuously drilled from both ends of the knob cut line on the broken line to both ends of the broken line of the front plate and the bottom plate facing the broken line of the rear plate and the bottom inner plate during assembly. The bottom plate is provided with a break line at a position overlapping the break line provided on the bottom inner plate during assembly. A volume reduction carton according to claim.

In addition, a knob part is provided by a knob part cut line at a lower edge center part of the rear plate, and the break break line is continuously formed from both ends of the knob part cut line on a fold line of the rear plate and the bottom inner plate. The front plate and the bottom plate are provided up to an intermediate point reaching both ends on the fold line of the rear plate and the bottom inner plate, and are continuously opposed to the fold line of the rear plate and the bottom inner plate during assembly from the intermediate point. The volume-reducing carton is characterized in that it is drilled at the bottom to both ends of the broken line .

  According to the present invention, a carton having a trunk portion including a side plate, a front plate, a side plate, and a rear plate, a top portion covering the upper end opening of the trunk portion, and a bottom portion covering the lower end opening, and having an opening function at the top portion. In order to break by light finger pressure, the knob part cut line is provided with an arc-shaped knob part at the center of the lower side of the rear plate, and from both ends of the knob part cut line to both ends on the broken line between the rear plate and the bottom part Since the break line is provided, the rear plate and the bottom can be easily separated after use, and the bottom can be disassembled to reduce the volume in a flat shape. By reducing the volume of the carton, it is possible to efficiently perform processing such as storage and transportation without taking up a large volume at the time of disposal. In addition, since the knob is small and provided at the lower edge of the rear plate, the design of the barrel is not impaired, the opening direction is not mistaken, and there are no ruled lines horizontally and diagonally on the barrel. Thus, it is possible to obtain a volume-reduced carton in a form that does not cause a decrease in the compressive strength of the carton.

  Hereinafter, it will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a volume-reducing carton according to the present invention, FIG. 2 is a development view showing a blank of an embodiment of a volume-reducing carton according to the present invention, and FIG. 3 is according to the present invention. FIG. 4 is a perspective view illustrating an assembly process of an embodiment of a volume-reducing carton, FIG. 4 is a view illustrating volume reduction of an embodiment of a volume-reducing carton according to the present invention, and FIG. FIG. 6 is a perspective view showing another embodiment of the volume-reducing carton, FIG. 6 is a perspective view showing still another embodiment of the volume-reducing carton according to the present invention, and FIG. 7 is a perspective view of the volume-reducing carton according to the present invention. FIG. 8 is a perspective view showing another example of the shape of the top, FIG. 8 is a perspective view showing still another example of the shape of the top of the volume reducing carton according to the present invention, and FIG. It is a perspective view which shows an example of a volume reduction carton.

  As shown in FIG. 1, the volume-reducing carton 1 of the present invention is formed from a blank punched into a predetermined shape, and is a rectangular tube-shaped body D composed of a side plate 11, a front plate 12, a side plate 13, and a rear plate 14. And a top part T covering the upper end opening of the body part 3 and a bottom part B covering the lower end opening. Although the opening function is given to the top part T, in this example, as shown to Fig.1-a, the opening zipper Z is provided in the substantially horizontal center part of the top plate 17 of the top part T. As shown in FIG. As shown in FIG. 1B, the bottom portion B has a knob cut line at the lower side center portion of the rear plate 14 so that the bottom portion B can be easily crushed and the carton crushed to reduce the volume after use. The knob 14a is provided by x, and the break break lines y and y are formed on the broken line l of the rear plate 14 and the bottom inner plate 19 continuously from both ends m and m of the knob cut line x. , N are respectively drilled.

  FIG. 2 is a developed view of a blank forming the volume-reducing carton 1 according to the present invention. As shown in the figure, in the blank 10, the side plate 11, the front plate 12, the side plate 13, the rear plate 14, and the glue margin piece 15 are sequentially arranged via the broken lines a, b, c, d, The body part D of the volume-reducing carton 1 is formed by bonding to the back surface of the side plate 11. A top folding piece 16, a top plate 17, a top folding piece 18, and a ceiling inner plate 19 are connected to the upper sides of the side plate 11, the front plate 12, the side plate 13, and the rear plate 14 through folding lines e, f, g, and h, respectively. These constitute the top T when the volume-reducing carton 1 is formed.

  Then, a pair of discontinuous cut lines z1 and z2 are formed in a substantially central lateral direction of the top plate 17, and a band-shaped opening zipper Z is provided between them. By tearing the opening zipper Z, the top T can be opened.

  On the other hand, on the lower sides of the side plate 11, the front plate 12, the side plate 13, and the rear plate 14, respectively, a bottom folding piece 20, a bottom plate 21, a bottom folding piece 22, and a bottom inner plate 23 via folding lines i, j, k, and l, respectively. Are formed continuously, and these constitute the bottom B when the volume-reducing carton 1 is formed.

  An arc-shaped knob portion 14a is provided at the center of the lower side of the rear plate 14 by a knob portion cut line x, and further, a broken line l between the rear plate 14 and the bottom inner plate 23 from both ends m and m of the knob portion cut line x. It is set as the shape which provided the break break line y and y to both ends n and n on the top. By making such a shape, also in the bottom part B, when reducing the volume of the carton after use, first, the knob part 14a is pressed with the fingertip to break the knob part cut line x, and then the knob part 14a. At the same time, the bottom plate 21 and the bottom inner plate 23 are picked up and pulled upward, and the breaking break lines y and y extending on both sides of the fold line l between the rear plate 14 and the bottom inner plate 23 are torn to both ends n and n. Thus, the bottom B can be disassembled.

  The break break lines y and y can be provided on the fold line j between the front plate 12 and the bottom plate 21 and the knob can be provided at the center of the lower side of the front plate 12, but the knob is provided on the front plate 12. In view of this, there is a risk of impairing the design. From this point, the break break lines y and y of this example are provided on the broken line h between the rear plate 14 and the bottom inner plate 23, and the knob portion is provided on the rear plate 14. A shape provided at the center of the lower side is preferred.

  The processing of the knob part cut line x and the break cut lines y and y provided for volume reduction can be performed by a general punching process in the same manner as the processing of the broken lines a to l of the carton.

  FIG. 3 is a diagram illustrating a process of assembling and forming the volume-reducing carton 1 of the present invention from the blank 10. First, the side plate 13 is folded to the front plate 12 side by folding the rear plate 14 at the folding line c, the side plate 11 is folded to the front plate 12 side by the folding line a, and the adhesive strip 15 is bonded to the back surface of the side plate 11 using an adhesive. As shown to 3-a, it is assembled in the shape of a square tube, and it is set as the sleeve shape of the folded state.

  Next, this folded sleeve-like carton is supplied to a normal seal-end carton packaging and filling machine, and as shown in FIG. 3B, it is raised into a quadrangular column shape and folded at one bottom B on both sides. The pieces 20 and 22 and the bottom inner plate 23 are bent, and the bottom plate 21 is folded over the bottom inner plate 23 and is bonded to the bottom inner plate 23 to form the bottom portion B. Next, after filling the contents, as shown in FIG. 3C, the top folding pieces 16 and 18 and the top plate 19 are folded at the other top T, and the top plate 17 is overlaid on the top plate 19. The top portion T is formed by bending and bonding to the ceiling plate 19. Thus, the volume-reducing carton 1 of the present invention as shown in FIG. 1 is formed.

  Next, when the volume-reducing carton 1 of the present invention is actually used, the top portion T is opened. In the case of this example, the zipper Z provided at the center portion of the top plate 17 can be easily torn. Can be opened. And the contents can be taken out from the opened top T.

  Next, in order to reduce the volume after actually using the volume-reducing carton 1 of the present invention, first, as shown in FIG. 4-a, a knob 14a provided at the center of the lower side of the rear plate 14 is used. Pressing and breaking the knob part cut line x, and then, as shown in FIG. 4B, the bottom plate 21 and the bottom inner plate 23 are picked together with the knob part 14a and pulled up so that the broken line l between the rear plate 14 and the bottom inner plate 23 The bottom B can be disassembled as shown in FIG. 4-c by tearing the breaking break lines y and y extending on both sides to the both ends n and n. In this way, the volume-reducing carton 1 with the top and bottom B opened can be easily crushed and reduced to a flat shape.

FIG. 5 is a perspective view showing another embodiment of the volume-reducing carton of the present invention. As shown in the figure, the volume reduction carton 2 is continuously formed from both ends m and m of the knob cut line x and x as the shape of the break cut line y and y provided in the bottom B for volume reduction. Both end points o and o (both corners of the bottom portion B) of the fold line j of the front plate 12 and the bottom plate 21 opposed to the fold line l of the rear plate 14 and the bottom inner plate 23 are formed.

  By making such a shape, also in the bottom part B, when reducing the volume of the carton after use, first, the knob part 14a is pressed with the fingertip to break the knob part cut line x, and then the knob part 14a. At the same time, the bottom plate 21 and the bottom inner plate 23 are picked and pulled upward, and the rear plate 14 and the bottom inner plate 23 fold line from both ends m and m of the knob cut line x on the fold line l between the rear plate 14 and the bottom inner plate 23. The bottom B can be disassembled by tearing the breaking line y, y to both end points o, o (both corners of the bottom B) of the broken line j of the front plate 12 and the bottom plate 21 facing l.

FIG. 6 is a perspective view showing still another embodiment of the volume-reducing carton of the present invention. As shown in the figure, the volume reduction carton 3 is continuously formed from both ends m and m of the knob cut line x and x as the shape of the break cut line y and y provided in the bottom B for volume reduction. Break lines y and y are provided up to the intermediate points p and p on the folding line l of the rear plate 14 and the bottom inner plate 23 up to both ends n and n, and the folding line l of the rear plate 14 and the bottom inner plate 23 The opposing front plate 12 and bottom plate 21 are respectively drilled to both end points o and o (both corners of the bottom portion B) of the broken line j.

  By making such a shape, also in the bottom part B, when reducing the volume of the carton after use, first, the knob part 14a is pressed with the fingertip to break the knob part cut line x, and then the knob part 14a. At the same time, the bottom plate 21 and the bottom inner plate 23 are picked and lifted upward, and on the folding line l between the rear plate 14 and the bottom inner plate 23 from both ends of the knob cut line x on the folding line l between the rear plate 14 and the bottom inner plate 23. The break break lines y and y extending on both sides of the front plate 12 and the bottom plate 21 and the bottom plate 21 and the bottom plate 21 fold line j of the front plate 12 and the bottom inner plate 23 facing the fold line l continuously. The bottom portion B can be disassembled by tearing the break line y, y to both end points n, n (both corners of the bottom portion B).

  In the volume-reducing carton of the present invention, the shape for opening the top is not limited to the shape of this example.

  As other shapes, for example, as shown in the volume-reducing carton 1A of FIG. 7, a knob portion 17a is provided at the center of the edge of the top plate 17, and the knob 17a is picked to attach the top plate 17 to the ceiling plate. It can be made into the shape which peels from 19 and opens the top part T. FIG.

  Further, as shown in the volume-reducing carton 1B of FIG. 8, a top plate picking portion 17a is provided by cutting or the like at the center of the edge of the top plate 17, and provided from the top plate picking portion 17a to the corner of the top plate 17. Alternatively, the top plate 17 may be torn along the oblique cut line to open the top portion T.

It is a perspective view which shows one Embodiment of the volume reduction carton by this invention. It is an expanded view which shows the blank of one Embodiment of the volume reduction carton by this invention. It is a perspective view explaining the assembly process of one Embodiment of the volume reduction carton by this invention. It is a figure explaining volume reduction of one Embodiment of the volume reduction carton by this invention. FIG. 6 is a perspective view showing another embodiment of the volume-reducing carton according to the present invention. FIG. 6 is a perspective view showing still another embodiment of the volume-reducing carton according to the present invention. It is a perspective view which shows another example of the shape of the top part of the volume reduction carton by this invention. It is a perspective view which shows another example of the shape of the top part of the volume reduction carton by this invention. It is a perspective view which shows an example of the conventional volume reduction carton.

Explanation of symbols

1 Volume reduction carton (one embodiment)
2 Volume reduction carton (another embodiment)
3 Volume reduction cartons (another embodiment)
DESCRIPTION OF SYMBOLS 10 Blank 11 Side plate 12 Front plate 13 Side plate 14 Back plate 14a Knob part 15 Glue allowance piece 16 Top folding piece 17 Top plate 17a Knob part 18 Top folding piece 19 Top plate 20 Bottom folding piece 21 Bottom plate 22 Bottom folding piece 23 Bottom inner plate a ~ l polyline T top part D trunk part B bottom part m end point (of knob part cut line)
n End point (of broken line l)
o End point (for polyline j)
p Intermediate point (of broken line l)
x Knob break line y Break line z1 Zipper break line z2 Zipper break line Z Zipper

Claims (2)

The body is formed by the side plate, the front plate, the rear plate, and the side plate, and the top plate connected to the upper side of the rear plate and the top plate connected to the upper side of the front plate are stacked and bonded to form the top portion. A bottom inner plate that is continuous with the lower side of the rear plate and a bottom plate that is continuous with the lower side of the front plate to form a bottom, and a carton having an opening function at the top,
In the lower edge central portion of the rear plate, a knob portion is provided by a knob cut line, and the bottom inner plate is continuous from both ends of the knob cut line on the rear plate and the bottom inner plate fold line, A break line is drilled to both ends of the fold line of the front plate and the bottom plate facing the fold line of the rear plate and the bottom inner plate during assembly, and the bottom plate is provided on the bottom inner plate during assembly. A volume-reducing carton comprising a break break line formed at a position overlapping with the break break line . The body is formed by the side plate, the front plate, the rear plate, and the side plate, and the top plate connected to the upper side of the rear plate and the top plate connected to the upper side of the front plate are stacked and bonded to form the top portion. A bottom inner plate that is continuous with the lower side of the rear plate and a bottom plate that is continuous with the lower side of the front plate to form a bottom, and a carton having an opening function at the top,
The knob is provided with a knob portion score line to the lower edge central portion of the rear plate, continuously from opposite ends of said knob portion score line on fold line of said bottom plate and said rear plate, the fracture cut line, wherein A folding line of the front plate and the bottom plate that is provided up to an intermediate point that reaches both ends of the folding line of the rear plate and the bottom inner plate and that continuously faces the folding line of the rear plate and the bottom inner plate during assembly from the intermediate point. Volume-reducing carton, characterized in that it is drilled at the bottom to both ends .

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