JP7447441B2 - packaging box - Google Patents

Description

The present invention relates to a rectangular parallelepiped-shaped paper box formed by folding a sheet of paper base material, which is provided with a rectangular cylindrical body and whose upper and lower sides are respectively closed by a top panel and a bottom panel. relates to a top-open type paper box whose upper top panel side can be opened by tearing the body apart from a tearing section and a perforation line provided on the body.

Conventionally, paper boxes for storing sweets such as elongated bar-shaped sweets and small biscuits have been equipped with a rectangular cylindrical body consisting of opposing front and rear panels and both side panels. It is a rectangular parallelepiped paper box that is closed by a top panel and a bottom panel, respectively, and a perforation that spans the front panel and both side panels, and a rear panel that connects both ends of the perforations formed on both side panels. A top open type paper box with ruled lines is known (for example, see Patent Document 1 and Patent Document 2).

In the paper boxes of Patent Documents 1 and 2, the top panel side above the perforations and ruled lines formed in the body is the lid section, and the lid section includes a cut-out front panel, both side panels, and a rear panel above the ruled lines. , and the top panel, the body is torn off at the perforations, and the lid is folded along the ruled lines to open the lid (see FIGS. 5 and 6).

Utility Model Publication No. 4-109022 Japanese Patent Application Publication No. 10-258881

The paper boxes of Patent Documents 1 and 2, for example, have ruled lines L on the rear panel 114 as shown in FIGS. 5 and 6, and since the ruled lines L are formed across the rear panel 114, the rear panel This interferes with the design applied to the paper box 114 and impairs the design of the paper box 101. In particular, when the lid portion 120 is repeatedly opened and closed, folds and wrinkles in the ruled lines L become conspicuous, and there is a problem in that the design deteriorates significantly. Furthermore, perforations are formed in the front panel 112, and the design of the front panel 112 is impaired by the perforations.

The present invention has been made to solve the above problems, and its purpose is to provide a top-open type paper box that can maintain its design without impairing its design.

In order to achieve the above-mentioned object, the present invention according to claim 1 includes a rectangular cylindrical body consisting of a front panel, a rear panel, and side panels on both sides, and the top and bottom of the body are top and bottom, respectively. In a rectangular parallelepiped-shaped paper box formed by folding a sheet of paper base material closed by a front panel and a bottom panel, the rear panel is provided with a break section that crosses in the left-right direction, and the side panels on both sides are The paper box is characterized in that each of the paper boxes is provided with a diagonally upward perforation line continuing from the broken portion toward the front panel, and the front panel is not provided with a ruled line.
Further, in the paper box according to claim 1, the present invention according to claim 2 is characterized in that the diagonally upward cutting line extends diagonally upward toward the front panel, and is formed by the side panel and the front panel. It is characterized in that it contacts the ridgeline at a position below the upper end that contacts the top panel, further extends downward along the ridgeline, and has an end point at a position closer to the bottom panel. .

Further, the present invention according to claim 3 is the paper box according to claim 1 or 2, in which at least three panels of the side panels and the rear panel on both sides are made of a double panel including an inner panel. It is characterized by this.

The present invention can provide a top-open type paper box that can retain its design without impairing its design. Further, even if the lid is repeatedly opened and closed, the front panel does not have any ruled lines, so that the design of the front of the paper box is not impaired.

FIG. 1 is a perspective view of a paper box according to an embodiment of the present invention. FIG. 1 is a developed view of a blank for assembling a paper box according to an embodiment of the present invention. It is an explanatory view showing an example of a method of assembling a paper box of one embodiment concerning the present invention. FIG. 1 is a perspective view showing an opened state of a paper box according to an embodiment of the present invention. FIG. 2 is a perspective view of a conventional top open type paper box. It is a perspective view showing a state in which a conventional top-open type paper box is opened.

The present invention described above will be described in detail below using drawings and the like.

FIG. 1 is a perspective view of a paper box according to an embodiment of the present invention, FIG. 2 is a developed view of a blank for assembling a paper box according to an embodiment of the present invention, and FIG. 3 is a method for assembling a paper box according to an embodiment of the present invention. An explanatory diagram showing an example, FIG. 4 is a perspective view showing an unsealed state of a paper box according to an embodiment of the present invention, FIG. 5 is a perspective view of a conventional top open type paper box, and FIG. 6 is a perspective view of a conventional top open type paper box. It is a perspective view showing a state in which a paper box is opened, and in the figure, 1 is a paper box, 1' is an opened paper box, 2 is a blank, 3 is a paper base material, 10 is a body, 11 and 13 are side panels, 11a and 13a are cutout lines, 11' and 13' are cut out side panels, 12 is a rear panel, 12a is a broken part, 12' is a cut out rear panel, 14 is a front panel, and 15, 16, and 17 are inside Panel, 15a is a projecting piece, 15b is a cut line, 20 is a lid part, 21, 23 are folding pieces, 22 is a top inner panel, 24 is a top panel, 31, 33 are folding pieces, 32 is a bottom inner panel, 34 is a bottom panel, 101 is a paper box, 101' is an opened paper box, 110 is a body part, 111, 113 are side panels, 111a, 113a are cut lines, 111', 113' are cut out side panels, 112 is a Front panel, 112a is a broken part, 112' is a cut out front panel, 114 is a rear panel, 115 and 116 are inner panels, 120 is a lid part, 124 is a top panel, E is an end point of a cut line, R is a ridge line , R1 indicates the upper end of the ridgeline, L indicates the ruled line, and A indicates the adhesive portion, respectively.

FIG. 1 is a perspective view of a paper box according to an embodiment of the present invention. As shown in FIG. 1, the paper box 1 of the present invention includes a rectangular cylindrical body 10 consisting of a front panel 14, a rear panel 12 (see FIG. 2), and side panels 11 and 13 on both sides (see FIG. 2). The body part 10 has a rectangular parallelepiped shape formed by folding a sheet of paper base material 3 (see FIG. 2), which is closed at the top and bottom by a top panel 24 and a bottom panel 34 (see FIG. 2), respectively.

In the paper box 1, the rear panel 12 is provided with a broken portion 12a (see FIG. 3) that crosses in the left-right direction, and the side panels 11 and 13 on both sides are provided with a broken portion 12a that continues to the broken portion 12a and extends toward the front panel 14. Diagonally upward perforation lines 11a and 13a are provided. Continuing from the broken portion 12a, there are cut lines 11a, 13a extending diagonally upward toward the front panel 14, and extending diagonally upward toward the front panel 14, relative to the ridge line R formed by the side panels 11, 13 and the front panel 14. It contacts the top panel 24 at a position below the upper end R1 of the ridgeline, further extends downward along the ridgeline R, and has an end point E at a position closer to the bottom panel 34. When the paper box 1 is opened by tearing the paper box 1 from the broken portion 12a of the rear panel 12 along the perforation lines 11a and 13a, the portion above the broken portion 12a and the perforation lines 11a and 13a becomes the lid portion 20; It is a top open type that can be opened from the rear panel 12 side to the front panel 14 side. The paper box 1 of the present invention is characterized in that the front panel 14 is not provided with ruled lines, and since the absence of ruled lines does not interfere with the design formed on the front panel 14 by printing etc., it has a high design quality. is obtained. Furthermore, the degree of freedom in design is improved. Further, it is preferable that the front panel 14 has no broken portion.

FIG. 2 is a developed view of a blank 2 for assembling a paper box 1 according to an embodiment of the present invention. It is made by folding. The blank 2 is usually formed by punching with a punching die equipped with predetermined cutting edges and ruled lines for forming fold lines.

The ruled line is formed by a press rule, a half-cut rule, a perforation rule (cuts or notches formed at intervals), or a lead rule (a half cut made in the spaced part where no cuts or notches are formed in the perforation rule), These ruled lines are made by using a punching die equipped with a cutting blade for punching out the blank 2, and a die having a predetermined shape of pressed rules, half-cut rules, sewing machine rules, or lead rules, or a combination of one or more of these. This allows it to be formed at the same time as punching. Alternatively, only the ruled lines may be formed before punching.

As shown in FIG. 2, the blank 2 includes a side panel 11, a rear panel 12, a side panel 13, a front panel 14, an inner panel 15, an inner panel 16, and an inner panel 17, which are successively arranged via ruled lines. The inner panels 15, 16, and 17 are slightly smaller than the vertical lengths of the rear panel 12, side panels 11, 13, and front panel 14. Although the inner panels 15, 16, and 17 are not essential, it is preferable to provide them because they can reinforce the rigidity of the body 10 and improve the appearance. The rear panel 12 is provided with a broken portion 12a that crosses in the left-right direction. Both ends of the broken portion 12a are continuous with the perforation lines 13a and 11a, and the perforation lines 13a and 11a extend diagonally upward. In FIG. 2, the perforation line 11a rises diagonally toward the upper left side, reaches the edge of the side panel 11, and when assembled into the paper box 1, is located at a position slightly lower than the upper end R1 of the ridge line. are doing. On the other hand, the perforation line 13a descends diagonally toward the lower left side, reaches the ruled line where the side panel 13 and the front panel 14 are connected, and further extends to the right along the ruled line to reach a position closer to the bottom panel 34. The end point is E.

A folding piece 21, a top inner panel 22, a folding piece 23, and a top panel 24 extend from the upper sides of the side panel 11, rear panel 12, side panel 13, and front panel 14 via ruled lines, respectively. A folding piece 31, a bottom inner panel 32, a folding piece 33, and a bottom panel 34 extend from the lower sides of the side panel 11, the rear panel 12, the side panel 13, and the front panel 14 via ruled lines, respectively.

As shown in FIG. 2, the top inner panel 22 and the bottom inner panel 32 are provided with an adhesive part A, and the adhesive part A has a plurality of cut lines such as perforations and half cuts formed at intervals, This is preferable because the adhesive enters the cut and provides strong adhesive strength.

Further, a protruding piece 15a that projects outward is provided on the upper side of the inner panel 15, and a perforation line 15b is provided on the upper side of the inner panel 15 to partition the protruding piece 15a. When the paper box 1 is assembled, the perforation line 15b is formed so as to overlap with the perforation line 11a, and furthermore, the perforation line 15b extends rightward along the ruled line where the front panel 14 and the inner panel 15 are connected, and the perforation line 15b extends to the right along the ruled line where the front panel 14 and the inner panel 15 are connected. The position closer to the side is defined as the end point E. With such a configuration, when the lid part 20 is opened, it is preferable because it can be torn smoothly.Furthermore, the front panel 14 is hard to be folded and wrinkled, and the design of the front panel 14 is maintained, which is preferable. . As will be described later, when the projecting piece 15a is provided with a glue section (not shown) on the upper side of the inner panel 15 to be bonded to the side panel 11, the area of the glue section increases, so that the adhesion is reinforced. .

The paper box 1 of the present invention mainly uses a paper base material 3. As the paper base material, a base material having enough rigidity to maintain the shape of the paper box is preferable. Paperboard is preferable as the base material, such as coated ball, uncoated ball, manila ball, kraft ball, ivory, card paper, etc., or lamination of these paperboards with aluminum vapor-deposited paper, transparent plastic film, or aluminum foil. Paper, etc. can be used.

Next, an example of how to assemble the blank 2 will be explained with reference to FIG.
To assemble the blank 2, fold the inner panel 17, inner panel 16, inner panel 15, front panel 14, side panel 13, rear panel 12, and side panel 11 along the ruled lines, and fold the inner surface of the side panel 13 and the outer surface of the inner panel 17. By overlapping the inner surface of the rear panel 12 and the outer surface of the inner panel 16, and the inner surface of the side panel 11 and the outer surface of the inner panel 15, and bonding the inner surface of the side panel 11 and the outer surface of the inner panel 15, a rectangular cylindrical shape is formed. A body 10 is formed. The adhesive margin is formed along the vicinity of the front panel 14 side including the protruding piece 15a on the upper side of the inner panel 15, and is bonded to the inner surface of the end side of the side panel 11 opposite to the side that is connected to the rear panel 12. be done.

Next, the lower folding pieces 31 and 33 are folded inward, and the bottom inner panel 32 and the bottom panel 34 are folded in this order and adhered at the adhesive part A, thereby closing the bottom part. Then, the contents are stored from above in the opened state, the folding pieces 21 and 23 are folded inward, the top inner panel 22 is further folded, adhesive is applied to the adhesive part A, and the top panel 24 is attached to the adhesive part. Close the top by gluing it with adhesive A. 3(a) shows the bottom part folded in after the body part is formed, FIG. 3(b) shows the top part folded in, and FIG. 3(c) shows the top part folded in. In FIGS. 3A and 3C, the bottom panel 34 and top panel 24 are omitted to make it easier to understand the state of the bonded portion.

The paper box 1 according to the embodiment of the present invention is not limited to the configuration shown in FIG. 2, and may include a top panel 24 and a bottom panel 34 connected to the rear panel 12. A top panel 24 is connected to either the rear panel 12 or the front panel 14, and the inside top panel 22 extends to the other rear panel 12 or front panel 14 to which the top panel 24 is not connected. may be set.

FIG. 4 is a perspective view showing the paper box 1 in an unsealed state according to an embodiment of the present invention. When the paper box 1 is opened, when the broken part 12a is torn using the cut line part of the broken part 12a as a starting point, the tear propagates to the cut lines 11a and 13a, and by breaking the cut lines 11a and 13a, the lid part is removed. 20 is formed, the lid part 20 is opened, and after taking out the necessary amount of contents from the opened paper box 1', the lid part 20 is returned to its original position and resealed. By providing the inner panels 15, 16, and 17, the lid portion 20 has better resealability. In addition, since there are no ruled lines, the rigidity of the paper base material provides resilience and further improves resealability.

In the conventional paper box 101, as shown in FIG. 5, the front panel 112 is provided with a broken portion 112a, and the rear panel 114 is provided with ruled lines L. In the conventional paper box 101, regardless of whether the front panel 112 or the rear panel 114 is the front of the paper box 1, the front panel 112 has a broken part 112a and the rear panel 114 has a ruled line L, so the design is applied to the front surface. , and the design of the paper box 101 is impaired. As shown in FIG. 6, when the lid portion 120 is repeatedly opened and closed, folds and wrinkles in the ruled lines L become noticeable, resulting in a noticeable deterioration of the design. The paper box 1 of the present invention has a structure in which the front surface (front panel 14) of the paper box 1 does not have any ruled lines, so that when the lid portion 20 is opened, the design is not impaired and the design can be maintained. Become. Further, the diagonally upward cut lines 11a and 13a extend diagonally upward toward the front panel 14, and are located at the ridge line that contacts the top panel 24 with respect to the ridge lines R and R formed by the side panels 11 and 13 and the front panel 14. By configuring the upper ends R1 and R1 to touch each other at a position below R1, and further extending downward along the ridge lines R1 and having end points E and E at positions closer to the bottom panel 34, the lid part 20 can be repeatedly opened and closed. Even if the front panel 14 is folded, wrinkles do not appear on the front panel 14, so the design is not impaired.

1 Paper box 1' Opened paper box 2 Blank 3 Paper base material 10 Body 11, 13 Side panels 11a, 13a Perforation lines 11', 13' Cut out side panels 12 Rear panel 12a Broken portion 12' Cut out rear surface Panel 14 Front panel 15, 16, 17 Inner panel 15a Projection piece 15b Cut line 20 Lid part 21, 23 Fold-in piece 22 Top inner panel 24 Top panel 31, 33 Fold-in piece 32 Bottom inner panel 34 Bottom panel 101 Paper box 101' Opened paper box 110 Trunk 111, 113 Side panels 111a, 113a Cut lines 111', 113' Cut out side panels 112 Front panel 112a Broken portion 112' Cut out front panel 114 Rear panel 115, 116 Inside panel 120 Lid Part 124 Top panel E End point of cutout line R Ridge line R1 Upper end of ridge line L Ruled line A Adhesive part

Claims (2)

It has a rectangular cylindrical body consisting of a front panel, a rear panel, and side panels on both sides, and the top and bottom of the body are closed with a top panel and a bottom panel, respectively, and is formed by folding a sheet of paper base material. In a rectangular parallelepiped paper box,
The rear panel is provided with a broken part that crosses in the left-right direction, and the side panels on both sides are each provided with a diagonally upward cut line that continues from the broken part and goes toward the front panel,
The diagonally upward cut line extends diagonally upward toward the front panel, contacts the ridge line formed by the side panel and the front panel at a position below the upper end that contacts the top panel, and further extending downward along the ridgeline and having an end point near the bottom panel,
The front panel does not have any ruled lines,
When the back panel is torn apart from the broken part along the perforation line and opened, the part above the broken part and the perforation line becomes a lid part, and the lid part moves from the rear panel side to the front panel side. The paper box is characterized in that when opened, the front panel is curved starting from the left and right end points to open the lid . The paper box according to claim 1, characterized in that at least three panels, the side panels and the rear panel on both sides or the side panels and the front panel on both sides, consist of a double panel with an inner panel.