JP2006051958A - Corrugated box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corrugated box which can be simply opened and closed in relation to a structure for opening and closing a lid of the corrugated box. <P>SOLUTION: In the corrugated box wherein outer flaps provided by connecting them on the upper and lower edges of a pair of side face boards, and inner flaps provided by connecting them on the upper and lower edges of a pair of end face boards, are piled up and stopped with a pressure-sensitive adhesive tape, unsealing pieces are formed by providing cuts at specified intervals on the end parts of the outer flaps, and when the unsealing pieces are separated from the outer flaps by utilizing step difference parts where the end edges of the unsealing pieces and the inner flaps are piled up, the pressure-sensitive adhesive tape is remained on the end part of the facing outer flap. A content can be taken out from a taking-out opening between the facing inner flaps, and by pushing the outer flaps inside, the upper edge parts of the outer flaps are overlapped on the facing upper edge parts to make re-sealing possible. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a structure for opening and closing a lid of a cardboard box.

Conventionally, as shown in FIG. 11, a corrugated cardboard box 30 (0201 type) used for transportation is provided with flaps 33 on the upper and lower edges of a pair of side plates 31 and a pair of end plate 32, respectively. The adhesive tape 40 is pasted and closed at the center. As a method of opening the cardboard box 30 as described above, the center of the adhesive tape 40 is cut and opened with a cutter or the like as shown in FIG. Further, a notch is provided in the end surface of the cardboard box or the center of the lid surface, and the notch is broken at the time of opening so that the end of the adhesive tape can be easily held and peeled off. (For example, refer to Patent Document 1).

Then, when re-sealing the cardboard box opened as described above, the four flaps 33 are alternately overlapped as shown in FIG. The flap 33 that is bent to the side is hooked and closed.
JP 2004-175451 A

However, the method of cutting and opening the adhesive tape with a cutter or the like as described above may damage the product inside.

In addition, in the method of making a cut on the end face of the cardboard to make it easier to peel off the adhesive tape, the pressure resistance of the cardboard box is reduced because the cut is provided on the end face, the cut is broken during transportation, and insects etc. in the cardboard box There is a risk of foreign material entering. In addition, an operator who opens the cardboard box cuts and opens the adhesive tape with a cutter or the like without first noticing the cut of the end face so as to see the cover surface of the cardboard box.

Further, in order to solve the above-mentioned problems, if a notch is provided in the center of the corrugated cardboard cover surface, it is possible to prevent the pressure-resistant strength of the corrugated cardboard box from being lowered. There is a risk of foreign matter such as insects coming in.

When notching the end face or the center of the lid surface as described above, when attaching the adhesive tape, it is necessary to attach the end of the adhesive tape to the notch. It must be troublesome.

And to prevent the entry of foreign substances such as insects into the cardboard box, it is possible to prevent tearing during transportation by weakening the cut or by making the cut only on the cardboard surface. It is necessary and is difficult to open.

Also, in the case of the cardboard box as described above, when it is necessary to take out a small amount without taking out the contents at a time and reseal it, the four flaps must be alternately stacked, and the flaps must be folded diagonally. It is troublesome to not become.

Therefore, the present invention prevents foreign matter such as insects from entering the cardboard box, so that an operator who opens the cardboard box can directly notice the opening method and can quickly open it without using a cutter. It is an object to provide a cardboard box that can be easily closed without trouble.

In order to solve the above problems, the present invention provides an adhesive tape in which an outer flap connected to the upper and lower edges of a pair of side plates and an inner flap provided to the upper and lower edges of a pair of end face plates are overlapped. In the corrugated cardboard box that is closed at the end, an opening piece is formed by providing notches at predetermined intervals at the end portion of the outer flap, and a finger is applied using a step portion where the end edge of the opening piece and the inner flap overlap When the opening piece is separated from the outer flap, the adhesive tape remains at the end of the opposing outer flap.

When the cardboard is fully opened, the adhesive tape remains in the portion that is left. If it is necessary to reseal, the portion between the opposing inner flaps is not broken without breaking the portion where the adhesive tape is left. The contents are taken out from the outlet, and the outer flap provided with the opening piece is pressed inward so that the upper edge of the outer flap is hooked on the upper edge of the opposite outer flap so that it can be resealed.

In addition, by forming a cut hole in the edge of the opening piece, the stepped portion where the edge of the opening piece and the inner flap overlap becomes longer, and it becomes easier to hook the finger.

With such a cardboard box, the unsealed piece is at the end of the outer flap without lowering the compressive strength, so when sticking the adhesive tape, it can be stuck without paying attention to the sticking position. When opening, it is possible for the operator who opens the bag to immediately notice the opening position and open the bag easily.

Moreover, since the opening part is formed by providing the notch of the predetermined interval at the end of the outer flap that overlaps the inner flap, it is possible to prevent foreign matters such as insects from entering even if the notch is broken during transportation.

Further, when opening, it is not necessary to break the finger-hanging portion or hook the nail, and it is easy to open the opening piece and the step of the inner flap only by hooking the finger.

Moreover, when resealing, it can be easily closed only by pressing one outer flap.

FIG. 1 is a development view of a cardboard box 11 according to the present invention, in which a pair of side plates 1 and a pair of end plates 2 are alternately connected, and an adhesive margin piece 9 is connected to the open side of the side plate 1. Outer flaps 3 and 4 are connected to the upper edge of the side plate 1, outer flaps 12 and 13 are connected to the lower edge, and inner flaps 5 and 6 are connected to the upper edge of the end plate 2, respectively. The inner flaps 14 and 15 are respectively connected to the lower edges, and the end portions of the outer flaps 4 are cut obliquely from the upper edge of the outer flap 4 toward the side plate 1 at a predetermined interval. The opening piece 7 is formed by providing.

As shown in FIG. 2, the cardboard box 11 has a glue piece 9 attached to the opposite end face plate 2 to form a cylinder, and the inner flaps 5, 6, 14, and 15 are bent inward from the connecting portion, and then the outer flap. 3, 4, 12, and 13 are folded and overlapped inward from the connecting portion, and the adhesive tape 10 is attached to the abutted portions of the opposed outer flaps 3, 4, 12, and 13 and closed. An end portion of the adhesive tape 10 is bent toward the end face plate 2 and is attached to an end edge portion of the end face plate 2.

At this time, since the opening piece 7 is formed at the end of the outer flap 4, the adhesive tape 10 is attached to a part of the opening piece 7.

When opening the cardboard box 11, as shown in FIG. 3, by using a stepped portion where the end edge of the opening piece 7 and the inner flap 5 overlap, hooking a finger and lifting it upward, the end of the adhesive tape 10 The portion is torn along the upper edge of the end face plate 2 to the butted portion of the outer flap. Next, as shown in FIG. 4, by separating the opening piece 7 from the outer flap 4, the adhesive tape 10 attached to the end of the outer flap 3 is broken obliquely, and the adhesive tape 10 can be peeled off.

Then, when the opening piece 7 is cut off from the outer flap 4 and the adhesive tape 10 is peeled off as described above, the outer flap 4 provided with the opening piece 7 is opened as shown in FIG. The adhesive tape 10 remains, and the end of the adhesive tape 10 remains attached to the upper edge of the end face plate 2, so that the outer flap 3 is closed without being opened.

In the cardboard box 11 as described above, as shown in FIG. 5, the contents can be taken out from the outlet 12 between the opposed inner flaps 5 and 6, and the outer flap 4 is pushed inward as shown in FIG. Thus, the inner flaps 5 and 6 are pushed inward, and the upper edge portion of the outer flap 4 enters the lower side of the upper edge portion of the opposite outer flap 3 as shown in FIG. Can be hung on the upper edge of the opposed outer flap 3 and resealed.

Further, when opening the outer flap 3, as shown in FIG. 8, the outer flap 3 is broken by breaking the end of the adhesive tape 10 remaining at the end of the outer flap 3 along the upper edge of the end face plate 2. Can be opened.

The cardboard box 11 of the present invention is not limited to the configuration of the above embodiment. For example, in the above embodiment, the opening piece 7 is provided only on the outer flap 4 on the upper edge of the side plate 1, but the bottom lid of the cardboard 11 is opened by providing it on the outer flap 12 or 13 on the lower edge of the side plate 1. Can be made easier and easier to dispose of.

Further, the opening piece 7 is formed by providing a cut at a predetermined interval obliquely from the upper edge of the outer flap 4 toward the side plate 1, but the opening piece 7 is formed on the side plate 1 from the upper edge of the outer flap 4. Cuts at predetermined intervals may be provided and formed vertically.

Further, as shown in FIGS. 9 and 10, the cardboard box 11 has a long stepped portion where the end edge of the opening piece 7 and the inner flap 5 overlap by forming a cut hole 8 at the end edge of the opening piece 7. It becomes easy to put a finger.

It is an expanded view of the cardboard box of the present invention. It is a perspective block diagram of the state which closed the cardboard box with the adhesive tape. It is a perspective block diagram of the state which hung the finger | toe on the level | step-difference part. It is a perspective block diagram of the state which cut | disconnected the opening piece from the outer flap. It is a perspective block diagram of the state which opened the outer flap of one side. It is a perspective block diagram of the state which pushed the outer flap inside. It is a perspective block diagram of the state which resealed the cardboard box. It is a perspective block diagram of the state which peeled the remaining adhesive tape. It is the expanded view which formed the notch hole in the edge of an opening piece. It is a perspective block diagram which shows the level | step-difference part which formed the notch hole. It is a perspective block diagram of the conventional cardboard box (0201 type). It is a perspective block diagram which shows the state opened with a cutter. It is a perspective block diagram which shows the conventional resealing method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side plate 2 End plate 3, 4, 12, 13 Outer flap 5, 6, 14, 15 Inner flap 7 Opening piece 8 Cut hole 9 Adhesive piece 10 Adhesive tape 11 Corrugated cardboard box 12

Claims (2)

In a corrugated cardboard box in which an outer flap connected to the upper and lower edges of a pair of side plates and an inner flap connected to the upper and lower edges of a pair of end face plates are overlapped and closed with an adhesive tape, the end of the outer flap When the opening piece is formed by providing a notch at a predetermined interval in the part, and using the stepped portion where the end edge of the opening piece and the inner flap overlap and the opening piece is separated from the outer flap, the opposing outer flap A cardboard box characterized in that the adhesive tape remains at the end. The cardboard box according to claim 1, wherein a cut hole is formed in an edge of the opening piece.

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