JPH09207931A - Easy unpacking cardboard case - Google Patents

Abstract

(57) [Abstract] [Problem] Wrap-round type easy-opening corrugated cardboard that makes it easy to open the top surface of the package with one action, and makes the packaging case flat when unpacking, making post-processing easy. The purpose is to propose a case. A wrap round type outer box, in which a breaking line for opening 8 is provided on a boundary line between a top plate, a side plate, and a connection margin.
8 is formed, and a knob 7c is formed at the tip of the upper flap 7a so as to have a partially overlapping relationship with the lower flap. The inner flaps 5a, 5b and the lower flap 6a are joined to each other. Without making it a non-adhesive relationship,
The inner flaps 5a, 5b and the upper flap 7a are connected to each other by a point adhesive portion 9
The lower flap is pressed and fixed through the tabs of the upper flap by fixing the lower flaps to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrap round type outer case made of corrugated board material.

[0002]

2. Description of the Related Art Conventionally, powder detergents, cosmetics, and other miscellaneous goods stored in a small box are generally traded by packing a plurality of small boxes in an outer box. Therefore, as such an outer box, product protection,
In consideration of handling during distribution such as transportation and storage, stacking strength and impact resistance during transportation are high, and at the same time packaging of type A cardboard boxes and items to be packaged that are excellent in packaging workability and economy and box making work are performed at the same time. The wrap round type outer case that can be used is widely adopted.

By the way, the individual products (small boxes) housed in such an outer case can also be used for individual products (small boxes) due to the necessity of distribution or when the transaction unit at the retail store is less than the case. The box is taken out by unpacking the outer case. They may then be repackaged in gift cases or display cases. In such a case, the emptied case is normally crushed and flattened and discarded.

[0004]

However, since the outer case has a robust structure and there are many bonding points, unpacking work is troublesome. In addition, the work of manually crushing and crushing an empty case requires a lot of work and is difficult.

Therefore, the present invention solves the above-mentioned problems, can be easily opened, and at the same time as unpacking, the packaging case is in a flat state, and the wrap round type easy unpacking makes post-processing easy. The purpose is to propose a cardboard case.

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention provides a pair of side plates on opposite sides of a rectangular or rectangular bottom plate, and the bottom plate is provided on either of the pair of side plates. A top plate of the same size as the above and a connecting glue margin are sequentially connected to connect them in a rectangular tube shape, and a pair of inner flaps are provided respectively on the front and rear opposite sides of the pair of side plates, and the bottom plate and A wrap round type outer box provided with a pair of upper flaps or lower flaps having a length that is less than half the width of the pair of side plates and that overlaps the inner flaps on the opposite sides of the top plate. , Forming a breaking line for opening on the boundary line between the top plate and the side plate and the connecting glue margin, and projecting at the tip of the upper flap so as to have a partially overlapping relationship with the lower flap. To form The inner flap and the lower flap are in a non-adhesive relationship without being joined to each other, while the inner flap and the upper flap are fixed to each other via a point adhesive portion, whereby the lower flap is an upper flap. It is characterized in that it is pressed and fixed through the knobs.

The knob can be formed at the tip of the overlapped portion by forming a overlapped portion at the center of the tip end of the upper flap so as to overlap with the lower flap.

In order to ensure that the tip of the upper flap and the lower flap are superposed, the tip of the lower flap is engaged with the knob of the upper flap and the overlapping portion so as to overlap with each other. Section is provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an example of an embodiment will be specifically described with reference to the drawings. FIG. 1 shows a packaged state according to the case of the present invention, and FIGS. 2 and 3 show an unpacked state. FIG. 4 is a development view of the wrap round case adopted by the present invention.

In the developed view of FIG. 4, reference numeral 1 denotes a rectangular bottom plate, and 2a and 2b denote a pair of side plates provided on the left and right opposite sides of the bottom plate. Reference numeral 3 is a top plate of the pair of side plates that is connected to the side plate 2b. As shown, this top plate is formed to have the same size as the bottom plate. Code 4
Is a connection margin formed in a narrow width connected to the top plate. The connecting margin is a bottom plate 1, a top plate 3, and a pair of left and right side plates 2.
Reference characters a and 2b are for connecting in a rectangular tubular shape.

Similarly in FIG. 4, the pair of side plates 2
A pair of inner flaps 5a, 5a and 5b, 5b are provided on opposite sides of a and 2b, respectively. Lower flaps 6a, 6a and upper flaps 7a, 7a are provided on opposite sides of the bottom plate 1 and the top plate 3, respectively. These upper and lower flaps are formed to have substantially the same length, and as will be described later, at the time of assembly, the inner flap 5a,
Overlap 5b. The upper and lower flaps are set to have a length that is less than half the width of the pair of side plates.

As shown in FIGS. 1 and 4, an overlapping portion 7b is formed at the center of the tip of the upper flap 7a so as to project upward or downward. An arcuate knob 7c is formed at the tip of the overlapping portion. Further, in order to ensure the overlapping with the tip of the upper flap 7a protruding from the tip of the lower flap 6a, an engaging portion 6b having a relation of overlapping with the knob of the upper flap and the overlapping portion is provided. ing.
However, this engaging portion is not essential and may not be provided.

As described above, the case of the present invention is formed by die cutting a double-sided corrugated board or an equivalent base paper. When die cutting the corrugated cardboard, the top plate 3 and the side plate 2 are simultaneously formed.
Break lines 8 and 9 for opening which are made of perforations or zippers are engraved on the boundary line between a and the connection margin 4.
In addition, since this case is almost the same as the conventional one in terms of the development pattern except for the projecting shapes of the overlapping portion 7b and the engaging portion 6a, it has good mechanical suitability and is also advantageous for paper removal.

In order to wrap a product g (for example, a small box) using the wrap round case having the above structure,
First, after placing a plurality of small boxes on the bottom plate 1, the left and right side plates 2
The top plate 3 is bent in parallel with the bottom plate while a and 2b are raised at right angles to the bottom plate, and the bottom plate 1, the top plate 3 and the pair of left and right side plates 2a and 2b are assembled into a quadrangular tubular shape as a whole. Then, the glue allowance 4 is overlaid on one side plate 2a and adhered by the adhesive 10.

Next, the inner flaps 5a, 5b are bent inwardly, and then the lower flaps 6a, 6a and then the upper flap 7 are placed so as to overlap the inner flaps 5a, 5b.
Fold a and 7a in that order. The inner flaps 5a, 5b and the lower flaps 6a, 6a are not bonded to each other and are in a non-adhesive relationship, while the inner flaps 5a, 5b and the upper flaps 7a, 7a are connected via a point bonding portion 9. Fix it. By the way, the upper and lower flaps are set to have a length not more than half of the width of the pair of side plates, but the overlapping flap 7b is formed at the center of the tip of the upper flap 7a so as to project upward or downward. Since it is formed, the lower flap is pressed by the upper flap through this overlapping portion and fixed as shown in FIG.

When the case of FIG. 1 is unpacked, as shown in FIG. 2, the knob 7c at the tip of one of the overlapping portions 7b is raised upward in the drawing to peel off the point adhesive portion 9, and then the top plate 3 is opened as it is. When peeled off along the breaking lines 8 and 8, the top surface opens and at the same time, the package expands flat as shown in FIG.

[0017]

As described above, the case of the present invention is
Not only is it easy to remove paper, has good mechanical suitability, has few adhesion points when packaging, and has the advantage that the top surface of the package can be easily opened with one action for unpacking. Since it spreads flat, the labor of manually crushing the package is saved, and the post-treatment (disposal) is significantly superior to the conventional one.

[Brief description of drawings]

FIG. 1 is a perspective view showing a packaging state according to a case of the present invention.

FIG. 2 is a perspective view showing an unpacked state.

FIG. 3 is a perspective view showing how the package expands in a flat shape.

FIG. 4 is a development view of a wrap round case adopted by the present invention.

[Explanation of symbols]

 1 Bottom Plate 2a, 2b Side Plate 3 Top Plate 4 Connection Glue 5a, 5b Inner Flap 6a Lower Flap 6b Engagement Part 7a Upper Flap 7b Polymerization Part 7c Pick 8 Break Line for Opening 9 Point Adhesion Part

Claims (3)

[Claims] 1. A rectangular or rectangular bottom plate is provided with a pair of side plates on opposite sides thereof, and a top plate of the same size as the bottom plate and a connecting glue margin are sequentially connected to one of the pair of side plates. And a pair of inner flaps are provided on the front and rear opposite sides of the pair of side plates, respectively, and the front and rear opposite sides of the bottom plate and the top plate are overlapped on the inner flaps.
And a wrap round type outer box provided with a pair of upper flaps or lower flaps each having a length less than or equal to half the width of the pair of side plates, on the boundary line between the top plate and the side plates and the connection margin. Along with forming a breaking line for opening, at the tip of the upper flap, a knob is formed so as to have a relationship of partially overlapping with the lower flap, and the inner flap and the lower flap are While not bonded to each other and in a non-adhesive relationship, by fixing the inner flap and the upper flap to each other via a point-adhesive portion, the lower flap is pressed and fixed via the knob of the upper flap. Easy unpacking cardboard case featuring. 2. The easily unpacked cardboard case according to claim 1, wherein a superposed portion is formed at a central portion of a tip end of the upper flap so as to be superposed on the lower flap. 3. The easy-unpacking cardboard case according to claim 1, wherein an engaging portion having a relation of overlapping with the knob and the overlapping portion of the upper flap is provided at a tip end portion of the lower flap.