Packaging box with window and pattern for making packaging box with window

Abstract

To make it possible to certainly and easily separate a resin film from a packing box.SOLUTION: A packing box 1B is formed into a rectangular parallelepiped shape by folding one cardboard, a side surface part of the packing box 1B is an entrance / exit for stored objects, and this entrance / exit is closed by a lid surface part 15 which is continuous from a bottom surface part and is folded at a right angle. A window 20 is formed from an upper surface part 12 to a front surface part 11 of the packing box 1B, and a peripheral edge part of a transparent resin film, which blocks the window 20, is bonded to an inner side of a window frame peripheral edge part of the window 20 formed in the upper surface part 12 and the front surface part 11. In the front surface part 11 with the window 20 formed therein, a break line 41, which extends toward a window frame of the window 20 from a corner a of a rectangular marginal part which defines the entrance / exit, is formed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This invention relates to a packaging box with a window. This invention also relates to a pattern for making (assembling) a packaging box with a window. [Background technology]

[0002] Kagami mochi, toys, miscellaneous goods, and other products are sometimes displayed in stores in cardboard packaging boxes. In order to make the product inside the box visible from the outside, packaging boxes with a window covered with a transparent plastic film on the top or front of the box are used.

[0003] When a paper packaging box and a resin film are disposed of separately, it is necessary to separate the resin film from the packaging box. Patent Document 1 discloses a box in which a pair of break lines is provided on a part of the periphery of a window hole formed in a front panel. By pressing between the pair of break lines, the periphery of the resin film peels off from the periphery of the window hole. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-136394

[0005] Since the plastic film is separated from the packaging box when the packaging box is to be disposed of, the inside of the packaging box is generally empty. When the surface of a hollow packaging box where the pair of break lines is provided is pressed, the packaging box tends to be crushed before it tears along the break lines. In this case, the plastic film cannot be peeled off from the packaging box even if pressure is applied between the pair of break lines. Summary of the Invention [Problem to be solved by the invention]

[0006] The object of this invention is to enable a resin film to be reliably and easily separated from a packaging box.

[0007] The packaging box with a window according to this invention is a packaging box formed into a rectangular parallelepiped by folding a single sheet of cardboard, the side or rear part of the packaging box being an entrance / exit for the stored items, and this entrance / exit is closed by a lid surface part that is continuous with the bottom or top part and is folded at a right angle, a window is formed on the top surface of the packaging box, on the front surface, or from the top surface to the front surface, and the peripheral part of a transparent resin film that covers the window is adhered to the inside of the peripheral part of the window frame of the window formed on the top surface, on the front surface, or on the top surface and front surface, and a break line is formed on the surface part where the window is formed, extending in a direction connecting the corner of the rectangular edge part that defines the entrance / exit and the window frame of the window.

[0008] When the lid is opened, an opening for putting in and taking out stored items opens on the side or rear. Since the packaging box is a rectangular parallelepiped, the opening is square. The edges of the square opening are defined by the edges of the top, bottom, front and rear (if the opening is located on the side), or by the edges of the top, bottom and left and right side (if the opening is located on the rear).

[0009] According to this invention, a break line is formed on the surface portion on which the window is formed, and this break line extends in a direction connecting the corner of the rectangular edge portion defining the entrance and the window frame of the window, so that the peripheral edge of the window (the peripheral edge of the surface portion on which the window is formed) can be easily and reliably torn along the break line. Once a tear is formed along the break line on the peripheral edge of the window frame, the transparent resin film can be separated from the peripheral edge of the window frame by simply lifting up the peripheral edge of the window frame. Because the edge of the transparent resin film is exposed in the area where the peripheral edge of the window frame and the transparent resin film are separated, the edge of the transparent resin film can be grasped by hand. By grasping the edge of the transparent resin film and peeling it off from the packaging box, the entire transparent resin film can be separated from the packaging box.

[0010] The break line may extend, for example, from a corner of the rectangular edge defining the entrance / exit to the window frame closest to the corner of the rectangular edge over the shortest distance, or may extend to a nearby window frame. The cuts that make up the break line may be short or long, or may be a mixture of short and long cuts. The break line may be straight, or part or all of it may be arc-shaped. An arc-shaped break line is used, for example, when preventing a break line from being formed over a specific image printed on a packaging box.

[0011] Preferably, a flap that can be folded at a right angle is provided on the inside of the lid surface. The flap can be grasped by hand, making it easy to break the periphery of the window frame along the break line and separate it from the transparent resin film.

[0012] In one embodiment, the break line starts at a corner of the rectangular edge and ends at the window frame, allowing the periphery of the window frame to be torn cleanly along the break line.

[0013] In another embodiment, the break line starts at a position away from the corner of the rectangular edge and ends at the window frame. By not forming a break line near the corner of the rectangular edge, it is possible to prevent the packaging box from losing strength or being easily broken.

[0014] Preferably, when the starting point is a position away from the corner of the square edge portion, an auxiliary break line that branches into two and extends from the starting point so as to sandwich the corner of the square edge portion between them is formed in the range between the starting point and the corner of the square edge portion of the surface portion on which the window is formed. The auxiliary break line can assist in breaking the window frame peripheral portion from the corner of the square edge portion to the starting point (a position away from the corner of the square edge portion).

[0015] This invention also provides a paper pattern for making a rectangular parallelepiped packaging box with a window. The packaging box made using the paper pattern of this invention is characterized in that the side or rear surface is an entrance for contents, this entrance is closed by a lid surface that is continuous with the bottom or top surface and is bent at a right angle, a window is formed in the top surface, the front surface, or from the top surface to the front surface, and a break line is formed in the surface where the window is formed, extending in a direction connecting the corner of the rectangular edge that defines the entrance and the window frame. [Brief explanation of the drawings]

[0016] [Figure 1] This shows a pattern for making a packaging box for kagami mochi. [Figure 2] FIG. 1 is an oblique view of a packaging box for Kagami mochi. [Figure 3] This shows how the transparent resin film is removed from the packaging box for Kagami mochi. [Figure 4] This shows how the transparent resin film is removed from the packaging box for Kagami mochi. [Figure 5] This shows how the transparent resin film is removed from the packaging box for Kagami mochi. [Figure 6] This shows how the transparent resin film is removed from the packaging box for Kagami mochi. [Figure 7] This shows a modified pattern for making a packaging box for Kagami mochi. [Figure 8] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 9] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 10] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 11] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 12] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 13] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 14]This shows another variation of the pattern for making a packaging box for Kagami mochi. [Figure 15] This shows another variation of the pattern for making a packaging box for Kagami mochi. [Example]

[0017] Figure 1 shows a blank paper template for making a packaging box for Kagami mochi, and Figure 2 is a perspective view of the packaging box for Kagami mochi assembled using this blank paper template. Figure 2 shows the packaging box for Kagami mochi with a Kagami mochi set stored inside.

[0018] Figure 1 shows a development of a packaging box, depicting the outer surface of a single sheet of paper (blank) 1A punched out of cardboard. The mountain fold lines are shown by dashed lines, and the valley fold lines are shown by dashed lines.

[0019] In one sheet of pattern 1A for forming packaging box 1B (see Figure 2), bottom surface 14, front surface 11, top surface 12, rear surface 13, and glue tab 13A are continuously arranged in a horizontal row. One side surface 15 (the right side when the packaging box is viewed from the front) (this side surface closes the entrance and exit for the stored items, and therefore this side surface will be referred to as "lid surface 15" hereinafter) is continuously formed on bottom surface 14 in a direction perpendicular to the horizontal row. A locking tongue 15A is continuously formed at the tip of lid surface 15. Furthermore, roughly rectangular side inner flaps 17A, 17B are respectively formed on front surface 11 and rear surface 13, extending continuously in the same direction as lid surface 15.

[0020] The other side surface (the left side surface when viewing packaging box 1B from the front) is formed by side surface portion 16A, side surface portion upper portion 16B, side surface portion 16C, and side surface portion lower portion 16D, which extend continuously from front surface portion 11, top surface portion 12, rear surface portion 13, and bottom surface portion 14, respectively, to the side opposite lid surface portion 15. When packaging box 1B is formed, parts of these portions 16A to 16D overlap each other to close the left side surface of packaging box 1B. Arc-shaped side portions 18a and 18b are formed on portions 16A and 16C, which interlock when overlapped. Portions 16B and 16D are approximately trapezoidal.

[0021] A window 20 is formed from the front surface 11 to the top surface 12. The window 20 is intended to allow the Kagami mochi set and other items stored in the packaging box 1B to be seen from the front and top (a see-through window), and a transparent film (sheet) 21 made of synthetic resin is provided to cover the window 20. The peripheral portion of the transparent resin film 21 is adhered (glued) to the inside of the peripheral portion of the window frame of the window 20 opened in the front surface 11 and top surface 12. In this embodiment, the window in the front surface 11 is formed in a rectangular shape, and the tip of the window in the top surface 12 (the portion close to the rear surface 13) is formed in an outward arc shape. The shape of the window 20 can be designed as desired.

[0022] A break line (perforation, dotted cut line) 41 is formed on the front surface 11 in which the window 20 is opened, extending linearly in a direction connecting the boundary point a between the front surface 11, bottom surface 14, and cover surface 15 and the window frame corner h of the window 20 that is closest to the boundary point a. The break line 41 is formed by a series of discontinuous cuts, and the cuts that make up the break line 41 may be short, straight lines or small holes. The peripheral edge of the window frame of the front surface 11 is prone to tearing along the break line 41. Note that the position of a, which is one end (starting point) of the break line 41, does not necessarily have to exactly coincide with the boundary point between the front surface 11, bottom surface 14, and cover surface 15, and may be slightly off, for example, at a corner of the flap 17A that connects to the front surface 11.

[0023] When template 1A shown in FIG. 1 is folded along the fold lines and assembled, a rectangular parallelepiped packaging box 1B as shown in FIG. 2 is produced. The adhesive tab 13A of rear panel 13 is glued to the inside surface of one side of bottom panel 14. The left side panel is folded so that sections 16A-16D are inside, and sections 16A and 16C are then folded along the pre-formed fold line. The tip ends of sections 16A and 16C beyond the fold line overlap sections 16D and 16B, and these overlapping sections are glued together. The left side panel is formed by sections 16A-16D by unfolding sections 16A and 16C folded along the fold line. At this time, arc-shaped sides 18a and 18b fit together. The left side panel is of the so-called auto-bottom type, but it does not necessarily have to be an auto-bottom type.

[0024] The right side of the packaging box 1B serves as the entrance / exit for the Kagami mochi set. After the Kagami mochi set 30 is stored inside the packaging box 1B, the inner side flaps 17A, 17B are folded at right angles to cover the front and rear ends of the entrance / exit. Finally, the locking tongue 15A of the lid surface portion 15 is folded at an approximately right angle, the lid surface portion 15 is folded at a right angle at the boundary with the bottom surface portion 14, and the locking tongue 15A is inserted into the packaging box 1B along the inner surface of the top surface portion 12. The assembly of the packaging box 1B is then complete. The packaging box 1B containing the Kagami mochi set 30 is then displayed in stores in this state.

[0025] Referring to Figure 2, in the assembled state into packaging box 1B, break line 41 connects corner a of the rectangular edge portion that defines the entrance / exit for the contents of packaging box 1B (the rectangular area closed by lid surface portion 15 in Figure 2) to window frame corner h of window 20. Break line 41 is formed on the surface portion on which window 20 is formed, among the multiple surface portions of packaging box 1B, i.e., on front surface portion 11 and / or top surface portion 12 in packaging box 1B, and is formed so as to extend from the corner of the rectangular edge portion that defines the entrance / exit for the contents toward the window frame of window 20. In packaging box 1B, break line 41 extends the shortest distance from corner a, which is the boundary point between front surface portion 11, bottom surface portion 14, and lid surface portion 15, i.e., corner a, which is located in the lower left corner of the four corners of the rectangular edge when the entrance / exit is viewed from the front, to window frame corner h, which is closest to corner a.

[0026] The customer can see the Kagami mochi set 30 (for example, Kagami mochi-shaped packs placed on three sides and adorned with various decorations) inside the packaging box 1B through a window (see-through window) 20 covered with a transparent resin film 21. When removing the Kagami mochi set 30 from the packaging box 1B, the lid surface 15 of the packaging box 1B is opened.

[0027] 3 to 6 show how to separate (separate) the transparent resin film 21 covering the window 20 from the packaging box 1B.

[0028] With the front portion 11 of the packaging box 1B facing up, pinch the lid surface portion 15 with your left hand and the flap 17A or the front portion 11 to which the flap 17A is connected (the window frame periphery of the front portion 11 to which the transparent resin film 21 is not adhered) with your right hand (Figure 3).

[0029] Flip flap 17A, which you are holding with your right hand, toward the upper right (Figure 4). As mentioned above, a break line 41 is formed on front surface 11 where window 20 is opened, extending linearly from corner a to window frame corner h of window 20. Therefore, the peripheral edge of the window frame of front surface 11 can be easily torn along break line 41, starting from corner a and ending at corner h.

[0030] The flap 17A is turned up (FIG. 5). The transparent resin film 21 is peeled off from the peripheral edge of the window frame of the front surface 11 in the area continuous with the flap 17A.

[0031] By peeling off the peripheral edge of the window frame of the front surface 11, the edge of the transparent resin film 21 that was adhered to the peripheral edge of the window frame is exposed. By pinching the exposed edge of the transparent resin film 21 with the right hand and peeling it off from the packaging box 1B, the entire transparent resin film 21 is separated from the packaging box 1B (Fig. 6). The transparent film can be separated from the packaging box 1B reliably and easily.

[0032] The lid surface portion 15 may be continuous with the top surface portion 12 instead of the bottom surface portion 14. Also, the entrance and exit for the Kagami mochi set 30 may be formed on the rear surface of the packaging box 1B instead of on the right side surface.

[0033] Figure 7 shows a modified packaging box pattern 1C, which differs from the packaging box pattern 1A shown in Figure 1 in that each of the multiple cuts that make up the break line 42 is longer. The length of the cuts that make up the break line can be designed as desired.

[0034] Figure 8 shows a packaging box pattern 1D of yet another modified example. It differs from the packaging box pattern 1A shown in Figure 1 in that the end point of the break line 43 is not at the window frame corner of the window 20, but at point k on the window frame edge slightly off from the window frame corner. Point k where the end point of the break line 43 is located is provided on the window frame side edge along the direction in which the flap 17A is turned up (see Figures 4 and 5). In this way, the end point of the break line does not necessarily have to be at the window frame corner h of the window 20.

[0035] Figure 9 shows a packaging box pattern 1E of yet another variation. It differs from the packaging box pattern 1A shown in Figure 1 in that the breaking line 44 extends in a direction connecting corner a and the window frame corner h of the window 20 closest to corner a, but starts at position b a little distance from corner a. By not forming breaking line 44 in the immediate vicinity of corner a, which will become the corner of the packaging box, it is possible to prevent the packaging box from losing strength or becoming easily broken.

[0036] Figure 10 shows a packaging box pattern 1F of yet another variation. It differs from the packaging box pattern 1E shown in Figure 9 in that auxiliary breaking lines 45a are formed between corner a and starting point b, branching into two short lines that sandwich corner a in the direction from starting point b of breaking line 45 toward corner a. Auxiliary breaking lines 45a can assist in breaking the peripheral edge of the window frame between corner a and starting point b.

[0037] Figure 11 shows a packaging box pattern 1G of yet another modification. It is a combination of the break line 43 shown in Figure 8 and the break line 44 shown in Figure 9, and the start point of the break line 46 is at a position b slightly away from the corner a and the end point is at a position k on the side edge of the window frame of the window 20.

[0038] Figure 12 shows a packaging box pattern 1H of yet another variation. It differs from the packaging box pattern 1A shown in Figure 1 in that the break line 47 is not linear, but is formed so as to connect corner a and corner h in an arc. The direction in which the arc-shaped break line 47 protrudes is preferably along the direction in which the flap 17A is turned up (see Figures 4 and 5). For example, it is possible to avoid forming the break line 47 on a specific pattern printed on the packaging box.

[0039] Figure 13 shows a packaging box template 1I of yet another modified example. A break line 48 is formed on the front surface 11, which is a combination of the linear break line described with reference to Figure 1 and the arcuate break line described with reference to Figure 12.

[0040] Figure 14 shows pattern 1J for a packaging box of yet another modified example. While break line 48 shown in Figure 13 is straight near corner a and arc-shaped near window frame corner h, break line 49 provided in pattern 1J in Figure 14 is arc-shaped near corner a and straight near the window frame. Break line 49 shown in Figure 14 differs from break line 48 shown in Figure 13 in that the end point of break line 49 is at position k on the side edge of the window frame of window 20 and in that break line 49 is made up of both short and long notches.

[0041] Fig. 15 shows a packaging box pattern 1K of yet another modified example. Unlike the above-mentioned patterns 1A, 1C to 1J, a window 20A is formed only in the top surface 12, and not in the front surface 11. The window 20A in the top surface 12 is sealed from the inside by a transparent resin film 21A.

[0042] The boundary point c between the front surface portion 11, the top surface portion 12, and the flap 17A becomes the upper left corner of the rectangular edge portion that defines the rectangular entrance when assembled into a packaging box as shown in Figure 2. A linear break line 41A is formed in the top surface portion 12 in which the window 20 is opened, extending from corner c to the window frame corner j of the window 20A that is closest to corner c. By tearing the peripheral edge of the window frame of the top surface portion 12 along break line 41A and flipping it over, the edge of the transparent resin film 21A can be exposed.

[0043] It goes without saying that the window may be formed only in the front portion 11. For a packaging box in which a window is formed only in the front portion 11, the transparent resin film can be easily separated from the packaging box by forming a break line as in any of Figures 1 to 14. [Explanation of symbols]

[0044] 1A, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K Pattern 1B Kagami mochi packaging box 11 Front part 12 Top part 13 Rear part 13A Glue allowance 14 Bottom part 15 Lid surface part 16A Side part 16B Upper side piece 16C Side part 16D lower side piece 17A, 17B Side inner flaps 20,20A Window 21, 21A Transparent resin film 30 Kagami mochi set 41, 41A, 42, 43, 44, 45, 46, 47, 48, 49 Break lines 45a Auxiliary breaking line

Claims

1. A packaging box formed into a rectangular parallelepiped shape with a front surface, a back surface, left and right side surfaces, a top surface, and a bottom surface by folding a single sheet of cardboard, The side or rear part of the packaging box is the entrance for the contents, and this entrance is closed by a lid part that is continuous with the bottom or top part and is bent at a right angle to be able to be opened and closed freely, A window is formed on the top surface of the packaging box, on the front surface, or from the top surface to the front surface, and the peripheral portion of the transparent resin film that covers the window is adhered to the inside of the peripheral portion of the window frame of the window formed on the top surface, on the front surface, or on the top surface and the front surface, A break line is formed on the peripheral edge of the window frame of the surface portion on which the window is formed, extending in a direction connecting a corner of the rectangular edge portion defining the entrance and the window frame of the window. Packaging box with window.

2. A flap that can be folded at a right angle is provided on the inside of the lid surface. The packaging box with a window according to claim 1.

3. The break line starts at a corner of the rectangular edge and ends at the window frame. The packaging box with a window according to claim 1 or 2.

4. The break line starts at a position away from the corner of the rectangular edge and ends at the window frame. The packaging box with a window according to claim 1 or 2.

5. An auxiliary break line extending from the starting point and branching into two so as to sandwich a corner of the rectangular edge portion therebetween is formed in the range between the corner of the rectangular edge portion of the surface portion in which the window is formed and the starting point. The packaging box with a window according to claim 4.

6. A paper template for making a packaging box with a window formed in a rectangular parallelepiped shape having a front surface, a rear surface, left and right side surfaces, a top surface, and a bottom surface, The packaging box made from the above-mentioned paper pattern has an entrance or a rear portion for the contents to be stored, and this entrance or entrance is closed by a freely openable lid portion that is continuous with the bottom or top portion and is folded at a right angle, A window is formed in the top surface, the front surface, or from the top surface to the front surface, A break line is formed on the peripheral edge of the window of the surface portion on which the window is formed, extending in a direction connecting a corner of the rectangular edge portion defining the entrance and the window frame of the window. Pattern.

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