JPS6328098Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention improves the detergent carton, especially the bottom part (referring to the upper and lower parts, hereinafter simply referred to as the bottom part), thereby making it possible to use materials without sacrificing the functionality and strength of the carton. It concerns a detergent carton which saves money and, in particular, completely prevents powder leakage, which is a key condition for its functionality.

The bottom of the conventional detergent carton has an inner lid flap a, a top lid flap b, and a left and right side flap c at the edges of the front panel A, the back panel B, and the left and right side panels C and D, as shown in the explanatory view of FIG. , d are arranged in series, and the left and right side flaps c and d, the inner lid flap a, and the upper lid flap b are folded in this order and attached to each other.

As shown in FIG. 2, the characteristic of the bottom of the conventional detergent carton is that at least the widths of the inner lid flap a and the upper lid flap b are equal to the width of the bottom to be formed, thereby improving sealing performance. The reason why they are formed equally is that if the widths of the inner flap a and the upper flap b are made smaller than the width of the bottom to be formed, it can be understood from FIG. As shown in the figure, there are parts that are double pasted and parts that are triple pasted, and the flaps are not evenly pasted on the same plane, and a gap s is formed depending on the thickness of the flap, and from this gap s. This is because powder leakage occurs.

The present invention makes the width of the inner flap and the upper flap at the bottom of the conventional detergent carton smaller than the width of the bottom to be formed, thereby reducing the required amount of materials compared to that of the conventional detergent carton. Approximately 5 to 7% for the lower base alone, approximately 10% to approximately 14 if the upper base is also improved.
The purpose of this invention is to provide a detergent carton that saves 1,000 yen and completely prevents powder leakage.

A more detailed explanation will be given below based on the embodiments shown in the drawings.

FIG. 4 is a developed view showing the blank board of the detergent carton of the present invention, in which 1 is the front panel, 2 is the back panel, and 3 and 4 are the left and right side panels, which are connected integrally through folding lines. ing. Reference numeral 5 denotes an adhesive flap that is attached to the left side panel 4, and is connected to the front panel 1 via a folding line. Through the above steps, the carton body A is formed.

At the upper end of the carton body A, an inner lid flap 6, an upper lid flap 7, and left and right side flaps 8 and 9, which form the upper bottom part C, are connected to each other via folding lines, and are folded and pasted together. is attached and sealed.

A tape-shaped handle (not shown) is usually formed on the upper bottom part C so that it can be carried.

Generally, on the filling line, the carton is turned upside down and the top bottom C is first formed, and after filling with powder, the bottom bottom B is formed. It can be used as a single flap, and it is easy to completely adhere each flap to each other. In comparison, it is very difficult to make the bottom bottom part of the carton completely adhere to each other using only pressure from the outside of the carton. It was considered impossible to make it smaller than the width.

Although the present invention can of course be applied to the upper bottom part (C), its feature is that it has a structure that greatly exhibits its value particularly in the lower bottom part (B).

That is, an inner lid flap 10, an upper lid flap 11, and left and right side flaps 12, 13 are connected to the lower edges of the front panel 1, the back panel 2, and the left and right side panels 3 and 4 via folding lines, respectively. The lid flap 10 and the upper lid flap 11 are formed to have a width that is approximately 2/3 of the width of the bottom portion to be formed.

In addition, notches 14 and 15 are formed at both left and right corners of the inner lid flap 10, and the left and right side flaps 1
2 and 13, the left and right side flaps 12 and 13 are divided approximately 2:1, and the large flap 1 is formed by cuts 16 and 17 that prevent the ends from reaching the base.
8, 20 and small flaps 19, 21 are formed, and the large flaps 18, 20 are provided with notches 1.
Embossed portions 22 and 23 are formed that face 4 and 15 without a gap and protrude outward.

After the large flaps 18, 20 of the left and right side flaps formed as described above are folded in, the inner lid flap 10, then the upper lid flap 11, and the small flaps 19, 21 of the left and right side flaps are simultaneously folded over each other. The bottom part is formed by pasting.

In the above, when the lower bottom part B is formed, the large flaps 18 and 20 of the left and right side flaps and the upper lid flap 11 are attached through the notches 14 and 15, so that the edge of the inner lid flap 10 The gap formed along the edges 2 of the notches 14 and 15
The gaps formed along lines 5, 26, 27, and 28 are bent and connected like a maze, as shown in the path e of powder leakage in FIG. This labyrinth-like connected gap prevents powder from entering and passing through, thereby preventing powder from leaking.

Furthermore, the embossed parts 22 and 23 facing the notches 14 and 15 make the edges 2 of the notches 14 and 15
5, 26, 27, 28 are filled, powder leakage is more reliably prevented, and the inner lid flap 10 and large flaps 18, 2
Since a continuous surface with no step is formed between the large flaps 18 and 20 and the inner lid flap 10,
The upper lid flap 11 is evenly attached to the lid to ensure sealing.

In addition, the inner lid flap 10 and the large flaps 18 and 20
In order to form a continuous surface between
It is necessary to form the heights of the embossed parts 22 and 23 facing the embossed parts 15 to gradually increase toward the notch part as shown in the XX cross section of the bottom perspective view of Fig. 5A. It is. The embossed portions 22 and 23, which gradually increase toward the notch, prevent f as shown in FIG. 10, which is another path for powder leakage.
However, even if one proceeds along the cuts 16 and 17 that divide the left and right side flaps into a large flap and a small flap, forming the gap q shown in FIG. 6, which shows the Y-Y cross section of FIG. As shown in FIG. 7, which is a Z-Z cross section, the embossed portions 22, 23 at the bases 29, 30 of the left and right side flaps 12, 13 taper off at the end portions of the cuts 16, 17 to become flat. Therefore, the inner lid flap 10, the upper lid flap 11, and the bases 29, 30 of the left and right side flaps are completely adhered and sealed, which prevents powder from entering and passing, and completely prevents powder leakage.

Furthermore, in the conventional detergent carton, when the inner lid flap a is attached to the left and right side flaps c and d, the left and right side flaps c and d swell due to the moisture in the glue, and their tips curve inward. Although it becomes difficult to attach the top lid flap b to be attached next, in the present invention, the left and right side flaps 1 are separated by the cuts 16 and 17.
2 and 13 have the same base as the large flap 18, 2
0 and small flaps 19 and 21, even if the large flaps 18 and 20 are folded into the carton body first, the small flap 1
9 and 21 are forced to spring up elastically toward the outside of the carton body, and are folded in with a delay while resisting the folding of the large flaps 18 and 20. Moreover, the inner lid flap 10 is placed above the large flaps 18 and 20. Even if the large flaps 18 and 20 are folded in horizontally after being pasted, they remain at a certain degree of inclination as shown in FIG. Therefore, the attachment of the small flaps 19, 21 and the upper lid flap 11 is as follows.
By utilizing the spring-up property of the flap 21, the entire surface of the small flaps 19 and 21 can be completely adhered by simply folding the upper lid flap 11 over it and pressing it.

In addition, since the carton assembly procedure described above is basically the same as the assembly procedure using a conventional box-making machine, the detergent carton of the present invention is compatible with conventional box-making machines, even though the structure is completely different. We are prepared.

The invention described above can be modified in various ways.

For example, the notches 14 and 15 may be not only rectangular but also arcuate or wavy, and the width of the side flaps 12 and 13 may be about 2/3 of the width of the bottom; May be smaller than . In addition, by diagonally cutting both sides of the left and right side flaps 12 and 13, the inner lid flap 10 and the upper lid flap 11 can be smoothly folded from above.
It may be possible to prevent polishing that may cause powder leakage during box making. Furthermore, the cuts 16, 17 that divide the left and right side flaps into large flaps 18, 20 and small flaps 19, 21 are made on the small flaps 19, 21 side so that the large flaps 18, 20 and small flaps 19, 21 do not overlap each other during box making. A diagonal notch may be provided in the flap, and it is desirable to fix the tip of the diagonal notch at the position where the height of the embossed portions 22, 23 of the large flap increases the most in order to prevent powder leakage. Furthermore, by making the ends of the cuts 16 and 17 into T-shaped cuts, it is possible to prevent the left and right side flaps 12 and 13 from tearing during box making.

As explained above, the present invention has the inner lid flap 10 and the upper lid flap 11 shortened to about 2/3 of the width of the bottom to be formed, thereby making it possible to improve the width of the conventional detergent carton. In comparison, approximately 5 to 7% of the required amount of paperboard can be saved only in the bottom part, and moreover, the notches 14 and 15 and the embossed parts 22 and 23 facing the notches are formed, and the notches 16 and 17 are Since the left and right side flaps 12 and 13 are divided into large flaps 18 and 20 and small flaps 19 and 21, powder leakage can be completely prevented even though the flaps have been shortened to about 2/3, and the box manufacturing It has excellent effects such as being suitable for automatic assembly by machine.

[Brief explanation of the drawing]

Figures 1 to 3 are explanatory diagrams of a conventional detergent carton. Figure 1 is a perspective view of the bottom, Figures 2 to 3 are sectional views similarly seen from the side, and Figures 4 to 11 are for the detergent carton of the present invention. Figure 4 shows a developed view, Figure 5 A is a perspective view of the bottom, and Figure B shows the carton.
A cross-sectional view, Figure 6 is a Y-Y cross-sectional view of Figure 5 A, and Figure 7 is a cross-sectional view.
The figures are a Z-Z sectional view of FIG. 5A, FIGS. 8-9 and 11 are perspective views of the bottom, and FIG. 10 is a plan view of the bottom. A...Front panel, B...Rear panel, C, D
...Left and right side panels, a...Inner lid flap, b...
...Top lid flap, c, d...Right and left side flaps,
s, q...Gap that causes powder leakage, e, f...
Path of powder leakage, A...Main body, B...Lower bottom, C...
...Top bottom, 1...Front panel, 2...Back panel, 3, 4...Left and right side panels, 5...Adhesion panel, 6...Top bottom inner lid flap, 7...Top bottom top lid flap, 8 , 9... Upper bottom left and right side flaps, 10... Lower bottom inner lid flap, 11... Lower bottom upper lid flap, 12, 13... Lower bottom left and right side flaps, 14, 15... Notch, 16, 17...
...The cut that divides the left and right side flaps into two, 18,2
0...Large left and right side flaps, 19,2
1...Small flaps on the left and right side flaps, 22,2
3... Embossed portion, 24... Center edge of inner lid flap, 25, 26, 27, 28... Edge of notch, 29, 30... Base of left and right side flaps.

Claims (1)

[Scope of utility model registration request] An inner lid flap 10, a top lid flap 11, and left and right side flaps 12, 13 are provided in series on the edges of each of the front panel 1, the back panel 2, and the left and right side panels 3 and 4, and at least the inner lid flap 10 and the top lid are connected to each other. The flap 11 is approximately 2/2 of the width of the bottom to be formed.
Notches 14 and 15 are formed at both left and right corners of the inner lid flap 10, and left and right side flaps 12 and 13 have a width of 1.
2 and 13 at a ratio of approximately 2:1, and the ends do not reach the base by cuts 16 and 17, the large flap 1 is formed.
8, 20 and small flaps 19, 21 are formed, and the large flaps 18, 20 have notches 1
Embossed portions 22 and 23 are formed that face 4 and 15 without a gap and protrude outward, and also have notched portions 1
Embossed portions 22 and 23 facing 4 and 15 gradually increase toward the cutout portions 14 and 15,
After the large flaps 18, 20 of the left and right side flaps formed as described above are folded in, the inner lid flap 10, then the upper lid flap 11, and the small flaps 19, 21 of the left and right side flaps are simultaneously folded and pasted together. 1. A detergent carton, characterized in that it has a bottom portion that is made of plastic.