JP7658082B2 - Packaging box - Google Patents

Description

This invention relates to packaging boxes for packaging items, and in particular to packaging boxes suitable for storing individually packaged (small-portioned) supplements, medicines, sweets, cooling agents, and other items.

Multiple individually packaged products may be stored in a packaging box for sale. In particular, for products that are sensitive to moisture and have a fixed dosage (amount), such as supplements and medicines, if the amount is individually packaged in advance, there is no need to measure each time you take it.

Patent document 1 discloses a bottom-lock type packaging box that is assembled by folding a plate-shaped blank. When the cover plate is closed, an insert piece connected to the cover plate is inserted into the box.

When the lid plate is closed, the insert piece connected to the lid plate runs along the inner surface of the blank located at the front of the packaging box. If multiple thin individually packaged products are stored in a packaging box lined up in the direction connecting the front and back of the packaging box, the insert piece may not run along the front of the packaging box when the lid plate is closed, and the individually packaged products may be sandwiched between the front of the packaging box and the insert piece. The individually packaged products sandwiched between the front of the packaging box and the insert piece are not completely contained in the packaging box and protrude and are visible from the outside, which makes it look unattractive. Of course, the packaging box containing the individually packaged products cannot be shipped in such a state, so it is time-consuming to reopen the lid plate, place the individually packaged products completely inside the packaging box, and then close the lid plate again. To prevent the individually packaged products from being sandwiched, the packaging box must be tilted to move the individually packaged products stored inside the box toward the back of the box before closing the lid.

JP 2009-96552 A

The purpose of this invention is to prevent the individual packages from being pinched between the front face (front surface) of the box body and the insertion piece of the lid when the lid is closed, and to ensure that all of the individual packages inside the box are contained within the box simply by closing the lid.

The packaging box according to this invention is a rectangular cylindrical packaging box having opposing front and back panels, opposing left and right side panels, and opposing lid and bottom panels, and is characterized in that an insert piece that is inserted into the packaging box is connected to the tip of the lid panel, and a folded panel that is folded inward (towards the inside of the packaging box) with a rebound in the upright direction is connected to the upper end of the front panel, and the tip edge of the insert piece fits along the folded panel when the lid panel is closed.

According to this invention, a folded panel is provided that is connected to the upper end of the front panel and folded inward with a rebound in the rising direction, so that when the lid panel is closed, the leading edge of the insertion piece at the leading end of the lid panel slides along the folded panel, i.e., on the folded panel, while being placed inside the packaging box. Individually packaged items inside the packaging box are not pinched between the front panel and the insertion piece. The lid can be closed with all of the individually packaged items securely placed inside the packaging box, without the need to tilt the packaging box to move the individually packaged items stored inside the box toward the back panel before closing the lid.

For example, if the packaging box is made of paper (paperboard), the fold-back panel attached to the upper end of the front panel will tend to stand up after being folded inward due to the repulsion of the paper. The same is true for synthetic resin sheets. If the material has this repulsive force, that is, if the fold-back panel does not overlap the inner surface of the front panel when folded, it can be used to construct the packaging box according to this invention.

In one embodiment, a hole is drilled across the boundary between the front panel and the fold-back panel. When the fold-back panel is folded back, a notch is formed in the upper edge of the front panel, and the hand (fingers) can be placed through this notch onto the insertion piece.

Preferably, the packaging box is provided with partition plates (middle partitions) that divide the interior of the packaging box into multiple compartments. Individually packaged items can be stored in each of the partitioned spaces (multiple storage chambers) within the packaging box, and the individually packaged items can be aligned and stored within the packaging box.

In one embodiment, the partition plate includes a horizontal partition piece extending in a direction connecting the left and right side panels of the packaging box, and a vertical partition piece extending in a direction connecting the front and back panels of the packaging box, and the vertical partition piece is formed with a step portion that engages with the tip of the folded panel that is about to rise, preventing the folded panel from rising midway. The folded panel is prevented from falling out of the packaging box due to its rebound.

Preferably, a stopper is formed on each of the front and back sides of the partition plate to prevent the individual packages stored in each compartment of the packaging box from being pinched between the partition plate and the front and back panels of the packaging box. This prevents the individual packages from being pinched in the gap between the partition plate and the packaging box, making it difficult to remove the individual packages.

A packaging box is made by cutting, folding, and gluing a single piece of cardboard, a sheet of synthetic resin, or a combination of these materials. The same goes for the dividers, but they do not necessarily need to be glued.

FIG. FIG. 4 is a development view of a partition plate stored in the packaging box body. FIG. FIG. 11 is a perspective view showing a state in which a partition plate is stored inside a packaging box body. FIG. FIG. 2 is a perspective view of a packaging box containing individual packages.

Figures 1 and 2 show the packaging box body. Figure 1 shows the template (blank) (developed view) that forms the packaging box body 1, and shows the surface that will become the exterior of the packaging box body 1. The template is made by cutting out cardboard, cardboard, plastic sheets, or a composite material of these into the shape shown in Figure 1. The dashed and dotted lines indicate the fold lines that will be mountain folds when assembling the packaging box body 1, and the dashed and two-dotted lines indicate the fold lines that will be valley folds when assembling the packaging box body 1. To make folding easier, fold lines or creases are applied along the dashed and two-dotted lines.

Referring to Figure 1, the packaging box body 1 has a glue tab 11, a back panel 12, a left side panel 13, a front panel 14, and a right side panel 15, which are connected horizontally from left to right via a fold line.

A cover panel 31, a flap 32, a fold-back panel 33, and a flap 34 are connected to the upper ends of the rear panel 12, the left side panel 13, the front panel 14, and the right side panel 15, respectively. An insertion piece 35 is further connected to the tip of the cover panel 31.

The rear panel 12, left side panel 13, front panel 14, and right side panel 15 are connected to the lower ends of the rear bottom piece 21, left side bottom piece 22, front bottom piece 23, and right side bottom piece 24, which form the bottom surface of the packaging box body 1. When the packaging box body 1 is assembled, parts of these bottom pieces 21 to 24 overlap each other. The rear bottom piece 21 and front bottom piece 23 are formed with interlocking notches 21a and 23a that interlock (engage) when overlapped. In addition, diagonal fold lines are formed from the corners toward the interlocking notches 21a and 23a near the left side bottom piece 22 of the rear bottom piece 21 and near the right side bottom piece 24 of the front bottom piece 23, and the fold lines define approximately triangular fixed adhesive pieces 21b and 23b, respectively.

Circular holes 17, 37 are formed in the front panel 14 and the fold-back panel 33 connected to the upper end of the front panel 14. The circular holes are located approximately in the center of the front panel 14 and the fold-back panel 33 in the left-right direction, with the upper semicircular hole 37 formed in the fold-back panel 33 and the lower semicircular hole 17 formed in the front panel 14. In other words, the circular holes 17, 37 are formed across the fold line at the boundary between the front panel 14 and the fold-back panel 33. When the fold-back panel 33 is folded completely (180 degrees), the semicircular hole 17 in the front panel 14 and the semicircular hole 37 in the fold-back panel 33 overlap, forming a semicircular cutout (see Figure 2). The insertion piece 35 is exposed through the cutout, making it easier to open the closed lid panel 31 by hooking a finger on the insertion piece 35.

It is not essential to form cutouts (semicircular holes 17, 37 described above) in the front panel 14. For example, if a pair of short cuts extending toward the insertion piece 35 and a cut connecting the tips of the pair of cuts are formed at the boundary between the lid panel 31 and the insertion piece 35, a short protrusion extending outward from the boundary between the lid panel 31 and the insertion piece 35 will be formed when the insertion piece 35 is folded, and the lid panel 31 can be easily opened by hooking a finger on this protrusion.

The packaging box body 1 is assembled as follows: Fold the back bottom piece 21, the left bottom piece 22, the front bottom piece 23, and the right bottom piece 24 in a mountain fold, and fold between the back panel 12 and the left side panel 13, and between the front panel 14 and the side panel 15.

The fixed adhesive piece 21b of the rear bottom piece 21 is folded along the diagonal fold line, and the fixed adhesive piece 23b of the front bottom piece 23 is folded along the diagonal fold line. The front surface of the left side bottom piece 22 and the back surface of the fixed adhesive piece 21b defined on the rear bottom piece 21 are adhered, the front surface of the right side bottom piece 24 and the back surface of the fixed adhesive piece 23b defined on the front bottom piece 23 are adhered, and the glue strip 11 is adhered to the back surface of the side panel 15. A blank is formed in a flat folded state.

When the flattened blank is raised into a rectangular tube shape, the interlocking notch 23a of the front bottom piece 23 and the interlocking notch 21a of the back bottom piece 21 interlock with each other, fixing the bottom of the packaging box body 1.

Next, the fold-back panel 33 connected to the upper edge of the front panel 14 is folded back in a mountain fold, and then the left and right flaps 32, 34, the cover panel 31, and the insertion piece 35 are also mountain-folded. The insertion piece 35 is inserted into the back surface of the front panel 14 along the top of the fold-back panel 33, that is, while the leading edge of the insertion piece 35 slides over the fold-back panel 33. The packaging box body 1 (Figure 2) is completed with the opening closed by the cover panel 31.

Figures 3 and 4 show the partition plate (middle partition) that is inserted into the packaging box body 1. Figure 3 is a template (blank) (developed view) for forming the partition plate 2, showing the surface that will become the outside of the partition plate 2. The template for the partition plate 2 is also made by cutting out cardboard, cardboard, plastic sheet, or a composite material of these into the shape shown in Figure 3. The dashed and dotted lines indicate the fold lines that will be mountain folds when assembling the partition plate 2, and the dashed and two-dotted lines indicate the fold lines that will be valley folds when assembling the partition plate 2. Creases or creases are applied along the dashed and two-dotted lines to make folding easier.

Referring to FIG. 3, the partition plate 2 comprises a rear bottom piece 41, two horizontal partition pieces 42, 43, and a front bottom piece 44, which are connected vertically from top to bottom via fold lines, a rear piece 51 connected to the upper edge of the rear bottom piece 41 via a fold line, a pair of vertical partition pieces 52 connected to the left and right ends of the rear piece 51 via fold lines, and a pair of front pieces 53 further connected to the left and right ends of the pair of vertical partition pieces 52.

Two vertically long slits 46 are formed at a distance in the horizontal partition pieces 42, 43 so as to straddle the boundary between the horizontal partition pieces 42, 43. As described below, when the back faces of the horizontal partition pieces 42, 43 are overlapped and folded at the boundary, a pair of slits 46 is formed that extend vertically at a distance from each other on the left and right and connect to the outside at the upper end (top). The slits 46 are about half the height of the horizontal partition pieces 42, 43.

At the boundary between the back piece 51 and the vertical partition pieces 52 on either side of it, an outward semicircular arc-shaped cut is formed to form a semicircular stopper 51a. Also, at the boundary between the vertical partition piece 52 and the front piece 53, a square cut is formed facing inward to form a square stopper 53a at the bottom. Furthermore, each of the two vertical partition pieces 52 has a vertical slit 55 that connects to the outside at the bottom end. The slit 55 has a height of about half the vertical partition piece 52. The vertical partition piece 52 is lowered midway on the front piece 53 side, and the front piece 53 has the same height as the lowered vertical partition piece 52. A step 52a is formed at the point where the height of the vertical partition piece 52 changes.

The partition plate 2 is assembled as follows. First, the back surfaces of the two adjacent horizontal partition pieces 42, 43 are overlapped along the fold line at the boundary between the two horizontal partition pieces 42, 43, and the back side bottom piece 41 connected to one horizontal partition piece 42 is valley folded outward at a substantially right angle, while the front side bottom piece 44 connected to the other horizontal partition piece 43 is valley folded outward at a substantially right angle. The bottom pieces 41, 44 extend in opposite directions (towards the front and back), forming a shape in which the horizontal partition pieces 42, 43 rise up almost vertically from the boundary between the two bottom pieces 41, 44.

The vertical partition pieces 52 connected to the left and right sides of the back piece 51 are folded inward at approximately right angles, and the back piece 51 is then folded inward at approximately right angles. When the vertical partition pieces 52 are folded inward at approximately right angles, the semicircular stoppers 51a protrude outward on the left and right sides of the back piece 51.

When the back piece 51 is folded in a mountain shape, the slits 55 formed in each of the pair of vertical partition pieces 52 are inserted into the slits 46 in the horizontal partition pieces 42, 43. The pair of vertical partition pieces 52 and the horizontal partition pieces 42, 43 are constrained to each other, creating a shape in which they extend perpendicular to each other.

Finally, the pair of front pieces 53 are folded outward at a right angle, completing the partition plate 2 (Figure 4). By folding the front pieces 53, the square stoppers 53a protrude inward.

Figure 5 shows the partition plate 2 installed inside the packaging box body 1. Figure 6 further shows the individual packages stored inside the packaging box body 1.

The depth of the partition plate 2 (the distance from the front piece 53 to the back piece 51) is approximately equal to (or may be slightly shorter than) the depth of the packaging box main body 1 (the distance from the front panel 14 to the back panel 12), and the width of the partition plate 2 (the distance between the left and right ends of the bottom pieces 41, 44) is approximately equal to (or may be slightly shorter than) the width of the packaging box main body 1 (the distance from the left side panel 13 to the right side panel 15). On the other hand, the height of the partition plate 2 (the height of the horizontal partition pieces 42, 43, the height of the vertical partition piece 52, and the height of the back piece 51) is slightly lower than the height of the packaging box main body 1 (the height of the front panel 14, the back panel 12, the left and right side panels 13, 15). The partition plate 2 is completely contained within the packaging box main body 1. The interior of the packaging box main body 1 is divided into six by the partition plate 2, and six storage chambers are created. Each of the six storage chambers stores a plurality of individual packaged bodies 60 arranged in a direction connecting the front and back of the packaging box main body 1. The individual package 60 is, for example, a thin package with four-sided seal, with each of the four sides sealed.

Since the semicircular stoppers 51a protrude outward from the left and right sides of the back piece 51, the individual packages 60 stored in the left and right storage compartments (the left and right storage compartments on the back side) of the storage compartment facing the back piece 51 do not reach the back side of the back piece 51 (are not sandwiched between the back piece 51 and the back panel 12 of the packaging box main body 1). Also, since the square stoppers 53a protrude inward from each of the pair of front pieces 53, the individual packages stored in the storage compartment in the center of the front side do not reach the front of the front piece 53 (are not sandwiched between the front piece 53 and the front panel 14 of the packaging box main body 1).

The folded panel 33 of the packaging box body 1 tries to rise due to repulsion, but as it rises, its leading edge gets caught on the step a52 of the vertical partition piece 52, and it cannot rise completely (Figure 5). The folded panel 33 always remains folded at an acute angle to the front panel 14.

When the opening of the packaging box body 1 is closed with the lid panel 31, the insert piece 35 at the tip of the lid panel 31 slides over the folded panel 33 and is stored inside the packaging box body 1. The individual package will not be pinched between the insert piece 35 and the front panel 14.

1 Packaging box body 2 Partition plate
12 Rear Panel
13 Left side panel
14 Front Panel
15 Right side panel
17, 37 Semicircular hole
21 Back side bottom piece
21a, 23a Interlocking notch
21b, 23b Fixed adhesive strip
22 Left side bottom piece
23 Front bottom piece
24 Right side bottom piece
31 Lid Panel
33 Folding Panel
35 Insert
41 Back side bottom piece
42, 43 Horizontal partition pieces
44 Front bottom piece
46, 55 Slit
51 Back piece
51a Semicircular stopper
52 Vertical compartment piece
52a Step
53 Front piece
53a Square stopper

Claims (4)

A rectangular cylindrical packaging box having opposing front and back panels, opposing left and right side panels, and opposing lid and bottom panels,
An insert piece is connected to the tip of the lid panel to be inserted into the packaging box,
A folded panel that is folded inward with a rising rebound is connected to the upper end of the front panel,
When the cover panel is closed, the leading edge of the insert piece is aligned with the fold-back panel,
The packaging box is provided with partition plates for dividing the inside of the packaging box into a plurality of compartments,
The partition plate includes a horizontal partition piece extending in a direction connecting the left and right side panels of the packaging box, and a vertical partition piece extending in a direction connecting the front and back panels of the packaging box,
The vertical partition piece is formed with a step portion that engages with the tip of the fold-up panel that is about to rise and prevents the fold-up panel from rising midway.
Packaging box. A hole is provided across the boundary between the front panel and the fold-back panel.
The packaging box according to claim 1. The packaging box according to claim 1, which is made by cutting, folding and gluing a single sheet of cardboard, a synthetic resin sheet or a composite of these. The partition plate is made by cutting and folding a sheet of cardboard, a synthetic resin sheet, or a composite material of these.
The packaging box according to claim 1.

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