JP2006290360A - Pressure-sensitive adhesive tape peeling structure for corrugated box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure which allows easy peeling of a pressure-sensitive adhesive tape closing the lid of a corrugated box. <P>SOLUTION: The corrugated box is closed up by superposing lid boards, which are formed consecutively on the upper edges of a pair of side face boards, and lid flaps, which are formed consecutively on the upper edges of a pair of end face boards, and attaching the pressure-sensitive adhesive tape on a superposed part. A pull-board having a diagonal fold is formed on the upper end of at least one end face board to be slightly closer from the center of the upper end to a side board, the pull-board having an auxiliary board partitioned by the diagonal fold. When the pull-board is folded outward along a base end fold, the auxiliary board is pressed by the pressure-sensitive adhesive tape, which causes the diagonal fold to bend. As a result, the side edge of the adhesive tape interferes with the auxiliary board to turn up the adhesive tape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a structure in which an adhesive tape that closes a lid of a cardboard box can be easily peeled off.

Conventionally, a corrugated cardboard box 50 (0201 type) used for transportation or the like has flaps 53 connected to upper and lower edges of a pair of side plates 51 and a pair of end plates 52 as shown in FIG. The flaps 53 are overlapped, and the adhesive tape 60 is stuck in the center to close. As a method of opening the corrugated cardboard box 50 as described above, a nail is hooked and peeled off from the end of the adhesive tape 60, or the center of the adhesive tape 60 is cut and opened with a cutter or the like.

In addition, as a method of opening without using a cutter, etc., by providing a cut on the end face of the cardboard box, and pressing the cut to the inside of the cardboard box at the time of opening, the end of the adhesive tape can be easily held and peeled off. It is easy. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 2003-72748

The conventional method of cutting and opening the adhesive tape with a cutter or the like may damage the product inside.

Further, in the method of providing a notch on the end face as described above and making it easy to peel off the adhesive tape by pressing the notch, since the notch has to be pressed inside the box, the contents of the box are If it is full, it cannot be pressed and cannot be opened easily.

Accordingly, an object of the present invention is to provide an adhesive tape peeling structure for a cardboard box that can be easily opened without using a cutter even when the contents of the cardboard box are full.

In order to solve the above-mentioned problems, the present invention uses a pressure-sensitive adhesive tape by laminating a lid plate connected to the upper edges of a pair of side plates and a lid flap provided to the upper edges of a pair of end surface plates. In the corrugated cardboard box to be closed, a pulling plate having a diagonal fold is provided slightly closer to the side plate than the central upper end of at least one of the end plates, and the portion of the pulling plate partitioned by the diagonal fold is used as an auxiliary plate. When the pulling plate is bent outward along the proximal fold, as the auxiliary plate is pressed by the adhesive tape, the oblique fold is bent, and the side edge of the adhesive tape is the auxiliary plate. Drowned while interfering with.

In addition, when a release plate is provided on the lid flap that is connected to the upper edge of the pulling plate, when the upper end of the pulling plate is picked up with a finger, it is released when the side edge of the cover plate located above the release plate is pressed. Since the plate is pressed inward, the upper end portion of the drawing plate can be easily picked.

Furthermore, when a push plate is provided at a corresponding position overlapping the release plate on the cover plate, when the upper end portion of the pull plate is picked with a finger, the side edge portion of the cover plate located above the release plate is easily pressed, This makes it easier to pick the upper end of the drawing plate.

With such an adhesive tape peeling structure for a corrugated cardboard box, the pulling plate is simply folded outward, so that the adhesive tape can be easily peeled even when the box is full.

Moreover, by providing a pressing plate on the lid surface, it is possible to notice the opening location immediately when viewed from the top surface.

Furthermore, the material area of the corrugated cardboard sheet to be used is the same as that of the conventional one, and the processing at the time of manufacture can be carried out only by partially adding a blade to the conventional wooden mold, so there is no need to change the process.

First, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a development view of a corrugated cardboard box 20 adopting the adhesive tape peeling structure of the corrugated cardboard box according to the present invention, in which a pair of side plates 1 and a pair of end plate 2 are alternately arranged, and one side plate 1 Adhesive strips 7 are continuously provided at the open side edge of the plate, the cover plate 3 is continuously provided at the upper edge of the side plate 1, the bottom plate 4 is provided at the lower edge, and the upper edge of the end plate 2 is provided. Each has a lid flap 5 and a bottom flap 6 at the lower edge.

A pulling plate 8 is provided by cutting slightly toward the side plate 1 side from the center upper end portion of one end face plate 2, a fold A is provided at the base end thereof, and the draw plate with the fold A end as a base point. An oblique crease B is provided so as to divide 8, and the divided portion is referred to as an auxiliary plate 9. Further, a release plate 10 is provided on the lid flap 5 provided continuously with the upper edge of the pulling plate 8, a crease C is provided at the base end thereof, and a side edge of the lid plate 3 overlapping the release plate 10 is cut. A push plate 11 is provided, and a crease D is provided at the base end thereof.

As shown in FIG. 3, the corrugated cardboard box 20 having the above-described development view is formed by sticking the adhesive margin piece 7 to the opposite end face plate 2 to form a cylinder, and the lid flap 5 and the bottom flap 6 from the connecting portion. Then, the lid plate 3 and the bottom plate 4 are folded inward from the connecting portion, and the adhesive tape 30 is attached to the abutted portion of the opposed lid plate 3 and the bottom plate 4 and closed. An end portion of the adhesive tape 30 is bent toward the end face plate 2 and is attached to the end portion of the end face plate 2.

At this time, the auxiliary plate 9 is attached to the adhesive tape 30, and the upper end portion of the pulling plate 8 is at a position removed from the adhesive tape 30.

A method for opening the corrugated cardboard box 20 closed as described above will be described. First, as shown in FIG. 4, when the pressing plate 11 is slightly pressed inward, it bends inward along the crease D, and at the same time, the release plate 10 located below it bends inward along the crease C. Thus, the upper end of the drawing plate 8 can be easily picked with a finger.

Even when the contents of the box are full, pressing the push plate 11 collapses the step on the side edge of the push plate 11 and makes it easier to pick the upper end of the pull plate 8 with a finger.

Next, when the upper end portion of the pulling plate 8 is picked with a finger and bent outward along the fold A, the oblique fold B is applied as the auxiliary plate 9 is pressed by the adhesive tape 30 adhered thereto. The auxiliary plate 9 bends along and is peeled off from the adhered adhesive tape 30.

Further, when the drawing plate 8 is bent outward along the fold A, the side edge of the adhesive tape 30 is obliquely folded as shown in FIG. 5 while the auxiliary plate 9 interferes with the side edge of the adhesive tape 30. Drown little by little according to eye B.

Thus, when the side edge of the adhesive tape 30 is curled, the end of the adhesive tape 30 is easily held and is more easily peeled off from the cardboard box 20.

It is an expanded view of the cardboard box 20 which employ | adopted the structure of this invention. It is an expansion expanded view of the adhesive tape peeling structure of the cardboard box of this invention. It is a perspective block diagram of the state which closed the cardboard box. It is a perspective block diagram which shows the stage of opening. It is a perspective view showing the state where the end of adhesive tape 30 has become easy to hold. It is a perspective block diagram of the conventional cardboard box (0201 type).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side plate 2 End surface plate 3 Lid plate 4 Bottom plate 5 Lid flap 6 Bottom flap 7 Glue piece 8 Drawing board 9 Auxiliary plate 10 Release plate 11 Push plate 20 Corrugated cardboard box 30 Adhesive tape
A, C, D fold
B oblique fold

Claims (3)

In a cardboard box in which a cover plate connected to the upper edges of a pair of side plates and a cover flap connected to the upper edges of a pair of end plates are overlapped and closed with an adhesive tape, the center of at least one end plate A pulling plate with an oblique fold is provided slightly closer to the side plate than the upper end, the portion of the pulling plate that is partitioned by the oblique fold is used as an auxiliary plate, and the pulling plate is located outside along the proximal fold. When the auxiliary plate is folded, the oblique fold is bent as the auxiliary plate is pressed with the adhesive tape, and the side edge of the adhesive tape is rolled while interfering with the auxiliary plate. Adhesive tape peeling structure for corrugated cardboard boxes. 2. The adhesive tape peeling structure for a cardboard box according to claim 1, wherein a release plate is provided on the lid flap that is connected to the upper edge of the pulling plate. 3. The adhesive tape peeling structure for a cardboard box according to claim 1 or 2, wherein a pressing plate is provided at a position corresponding to the cover plate overlapping the release plate.

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