JPH0539054Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a packaging box such as a cardboard box that can be opened extremely easily during work.

(Prior Art and Problems) Conventionally, packaging boxes such as cardboard boxes have been manufactured by gluing the outer flaps and inner flaps forming the lid plate, or by attaching the outer flaps 1 to each other as shown in Fig. 2. Since the seal is sealed by pasting adhesive tape 2 over the portion, opening the seal requires force and effort, resulting in poor workability.

The easy-to-open packaging box according to the present invention effectively eliminates the defects of the conventional packaging boxes and enables easy opening.

Examples will be explained below with reference to the drawings.

(Means for solving the problem) 3 in the figure is a cardboard box, and 4 in the figure is a cut line carved intermittently on the side edges 6, 7 of the lid plate 5 of the cardboard box 3. It is.

It is preferable that the cut line 4 is carved as close to the side edges 6, 7 of the lid plate 5 as possible, since no residual pieces remain after the lid plate is removed and the contents can be easily taken out.

The shape of the cut line 4 may be perforated,
Any of the general shapes such as a C-shape and a Y-shape can be used.

Next, reference numeral 8 in the figure is a through hole bored approximately in the center between both the cut lines on the cover plate.

The size of the through hole may be such that at least a finger can be inserted through the hole and the cover plate can be pulled up, and the shape thereof may be a parallel ellipse, an ellipse, or even a rectangle. It doesn't matter. In addition, when the hole 8 is drilled at approximately the center between the two incision lines, and also at the approximately center between the side edges 9 and 10 of the cover plate as shown in the figure, it is necessary to use both hands. This is preferable because the lid plate 5 can be pulled up in opposite directions at once, and the breaking force is evenly distributed to both the score lines, so that the seal can be opened easily without requiring much force.

Next, reference numeral 11 in the figure shows a cut line 12 starting near the end of the through hole 8 and its end extending to the side edges 6 and 7 of the cover plate.
It is a tear opening consisting of a through hole 13 leading to the vicinity.

The structure of the tear opening 11 may be a combination of a score line and a through hole as in the embodiment, or may be a score line or a through hole alone.

Here, the cut line 1 constituting the tear opening 11 is
The second aspect may be a general aspect such as a perforated shape, and the shape of the through hole 13 is not particularly limited.

In short, as long as the structure allows the cut line 4 and the through hole 8 to be connected so that the breaking force generated by pulling up the through hole 8 is transmitted to the cut line 4 through the tear opening 11. good.

Further, in this embodiment, since no flap is attached to the cover plate 5 as shown in FIG. Cancellation can be easily performed.

Furthermore, if a through hole 15 of a predetermined shape is bored on the flap 14 forming the side plate, a finger insertion hole 16 for carrying is formed during assembly, making handling convenient.

The present invention can be applied to packaging boxes of the type in which the flap does not form a lid plate or bottom plate as in the embodiment, and can be applied to packaging boxes of any shape, size, or material such as cardboard boxes as long as the same type of packaging box is used. is also applicable.

When opening the packaging box of the present invention having the above-mentioned structure, insert a finger into the through hole 8 and pull up the outer part of the through hole toward the side edge 9 or side edge 10, either simultaneously or sequentially. If this is done, the cut line 4 will be easily broken through the tear opening 11, and the cover plate 5 will be
is removed and the packaging box 3 is opened.

(Effects of the present invention) The packaging box according to the present invention does not require the complexity of peeling off adhesive tape or glued flap pieces when opening the box, and the lid plate can be removed extremely easily with one touch, making it easy to work. can be improved.

Furthermore, the present invention has holes in the cover plate, which allows ventilation and makes it suitable for storing fresh foods such as vegetables and fruits. It also has the advantage that the condition of the contents can be easily observed through the holes.

Further, even when refrigerated items are housed in the packaging box of the present invention for refrigerated storage, the presence of the through holes allows cold air to freely flow in, resulting in high cooling efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an easy-to-open packaging box according to the present invention, FIG. 2 is a perspective view of a conventional packaging box, and FIG. 3 is a developed plan view of the easy-to-open packaging box according to the present invention. 1...Outer flap, 2...Adhesive tape, 3...
Cardboard box, 4... Cut line, 5... Lid plate, 6, 7
...Side edge, 8...Through hole, 9,10...Side edge,
11...Tear opening, 12...Score line, 13...
Through hole, 14...Flap, 15...Through hole, 16...
...Finger insertion hole.

Claims (1)

[Scope of utility model registration request] In a packaging box of a type in which a lid plate is not formed by a flap, a lid plate 5 whose short sides are the side edges 9 and 10 that touch the upper side of the side plate formed by the flap 14.
An intermittent score line 4 is cut on or near the side edges 6, 7 of the cut line 4, and a through hole 8 of a predetermined shape is bored approximately in the center between the cut lines 4. is connected to the through hole 8 via a tear opening 11, and the tear opening 11 is formed along a direction perpendicular to the score line 4 starting near the end of the through hole 8. An easy-to-open packaging box characterized by comprising a through hole 13 provided so that the connecting line 12 and/or its end reach the vicinity of the side edges 6 and 7.