JP4288126B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box for packaging a product such as a patch.

  2. Description of the Related Art Conventionally, packaging boxes made of paper, such as corrugated cardboard or coated cardboard, have been widely used as packaging containers for merchandise. A packaging box is also known in which, when products are sold at a store, the upper part is cut off so that it can be used as an exhibition box.

  Such a packaging box also serving as a display box has a horizontal first cut line (a so-called perforation) formed at the center in the vertical direction of the front surface portion and an end of the first cut line formed at each side surface portion. Some have a second cut line extending obliquely upward from the upper part to the upper end of the rear end edge of the side surface part, and a third cut line formed along the upper edge of the rear surface part. When the packaging box is cut and opened along the first to third cut lines, the lower part functions as an exhibition box. The reason why the cut line on the side surface is slanted is that, in addition to good aesthetics, it is easy to take out products from the side (particularly thin products such as patches such as poultices).

  By the way, in the type of packaging box as described above, in order to make the opening easier, the first incision line on the front portion is two upper and lower (see Patent Document 1), the first There is a structure in which not only the cutting line but also the second cutting line are two vertically (see Patent Document 2). In these cases, the portion between the upper and lower cut lines is used as an opening piece, and the opening piece is grasped with a finger and pulled, so that cutting is easily performed.

  In the case of the packaging box described in Patent Document 1, after excising the unsealed piece on the front part, insert a finger into the excised part, pull up the upper part of the packaging box, and use the side part as the second score line. Cut along.

In the case of the packaging box described in Patent Document 2, since the opening pieces are formed not only on the front surface portion but also on the left and right side portions, the cutting from the front surface portion to the side surface portion can be performed at once by peeling off the opening pieces. Is possible.
JP-A-11-79166 Japanese Patent Laid-Open No. 2002-2585

  However, in the packaging box described in Patent Document 1, since the opening piece is formed only on the front surface portion, when the removal portion of the opening piece is to be pulled up with a finger, the corner between the front surface portion and the side surface portion ( It may tear at the two-surface intersection) and may not be cut along the second cut line. In such a case, it is necessary to cut the packaging box along the second cut line again, which is troublesome.

  Further, in the packaging box described in Patent Document 2, even if the opening piece on the front surface portion can be appropriately excised, the surface layer adjacent to the opening piece when attempting to excise the opening piece on the side surface portion. May peel off, detract from aesthetics, and may not function as an exhibition box.

  An object of the present invention is to provide a packaging box that can solve the above-mentioned conventional problems.

  In order to achieve the above object, the present inventors have intensively studied, and as a result, in the packaging box described in Patent Document 1, the front side portion is formed by pulling the planar side portion from above and below and tearing it along the cut line. It has been found that there is a case where force is not applied when lifting and tearing at the corners of the front and side portions.

  On the other hand, the above problem of the packaging box described in Patent Document 2 was thought to be due to the direction of the fibers in the paper forming the packaging box. That is, in order to properly cut the horizontal opening piece on the front face, it is necessary to orient the paper fiber direction on the front face of the packaging box substantially horizontally. When such an orientation, usually the fiber direction in the side portion of the packaging box is also substantially horizontal, but the opening piece of the side portion is formed obliquely, when cutting off the opening piece of the side portion, The joint part of the incision line (the part between the fine line holes of the perforation) tries to tear in the fiber direction, and this becomes peeling of the surface layer.

  The present invention has been made on the basis of the above findings, and includes a front surface portion, a side surface portion connected to the left and right end edges of the front surface portion, and a rear surface portion connecting between rear end edges of the left and right side surface portions. In the packaging box comprising a top surface portion that closes the top opening and a bottom surface portion that closes the bottom opening, each of the first and second cut lines formed vertically on the front face portion and the first cut line The upper and lower second cut lines formed in each of the side surface parts so as to extend horizontally from the respective end parts, the second cut line terminating before reaching the rear edge of the side surface part. And an inclined cut line extending obliquely upward from the rear end portion of the second cut line to the rear end edge of the side surface portion, and a third cut line connecting the rear end portions of the left and right inclined cut lines. It is a feature.

  In the packaging box according to the present invention as described above, the pair of upper and lower second cut lines formed on the side surface portion also extend horizontally in the same manner as the first cut line, and therefore the opening piece between the cut lines. Can be easily cut out, and since it can be cut along the fiber direction of the paper, peeling of the surface layer of the portion adjacent to the opening piece can also be prevented.

  In the present invention, the starting point of the inclined cut line on the side surface portion is the rear end portion of the second cut line. That is, since the starting point of the inclined cut line is at the center of the side surface portion, when the tensile force is applied to the side surface portion at the time of opening, the side surface portion can be reliably cut along the inclined cut line.

  Therefore, the packaging box according to the present invention can be easily opened, has an excellent aesthetic appearance after opening, and is a good display box.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a packaging box according to the present invention, and FIG. 2 is a perspective view of the packaging box showing an opened state. The packaging box 10 is made of a single cardboard, preferably coated cardboard that can provide an aesthetic effect as an exhibition box.

  As shown in FIG. 1, the packaging box 10 has a rectangular parallelepiped shape, a rectangular bottom surface portion 12, a front surface portion 14 and a rear surface portion 16 extending vertically upward from each long edge of the bottom surface portion 12, and a bottom surface portion 12. Left and right side surfaces 18 and 20 that extend vertically upward from each short edge and connect corresponding end edges of the front surface portion 14 and the rear surface portion 16, and upper edges of the front surface portion 14, the rear surface portion 16, and the side surface portions 18 and 20 The upper surface part 22 which closes the upper opening to demarcate is comprised. In the present specification and the appended claims, the terms such as “horizontal”, “vertical”, “upper”, “lower” and the like are directions when the packaging box 10 of FIG. 1 is placed on a horizontal plane. Based on state.

  FIG. 3 is an exploded view of the packaging box 10, wherein the rectangular portion 24 constitutes the front portion 14 of the packaging box 10, and the rectangular portions 26 and 28 provided on the left and right sides thereof are the left and right side portions, respectively. 18 and 20 are configured. Further, the rectangular portion 30 connected to the left rectangular portion 26 constitutes the rear surface portion 16. A portion 32 continuing to the left side of the rectangular portion 30 is a joint, and the rectangular portions 24 to 30 are formed in a rectangular tube shape by joining the portion 32 to the right rectangular portion 28 with an adhesive or the like. By combining the portions 34, 36, 38, and 40 connected to the lower edges of the rectangular portions 24 to 30, the bottom surface portion 12 that closes the bottom opening of the packaging box 10 is formed. Further, the portions 42 and 44 extending from the upper edges of the rectangular portions 26 and 28 which become the side portions 18 and 20 are so-called inner flaps, and the portions extending from the upper edges of the rectangular portions 24 and 30 which become the front surface portion 14 and the rear surface portion 16. 46 and 48 are so-called outer flaps. The inner flaps 42 and 44 and the outer flaps 46 and 48 are bent, and the outer flaps 46 and 48 are overlapped on the inner flaps 42 and 44 and joined together with an adhesive or the like, thereby forming the upper surface portion 22 of the packaging box 10. Is done.

  In the packaging box 10 according to the present embodiment, a pair of upper and lower cut lines (first cut lines) 50 and 52 extending in the horizontal direction are further formed on the front surface portion 14. A portion 54 between the cut lines 50 and 52 functions as an opening piece. In order to cut off the opening piece 54 in the horizontal direction, the fiber direction of the paper constituting the packaging box 10 is also determined to be substantially horizontal. The vertical distance between the cut lines 50 and 52, that is, the width of the unsealed piece 54 is not limited, but is preferably about 1 cm so that it can be grasped with a finger. Depending on the form and size of the product to be packaged, when the product is a thin patch or the like, these cut lines 50 and 52 may be formed at a substantially intermediate position in the vertical direction of the packaging box 10. preferable.

  Horizontal cut lines (second cut lines) 56 and 58 are also formed on the left and right side faces 18 and 20 so as to extend straight from the cut lines 50 and 52 in the front face part 14. The cut lines 56 and 58 in the side surfaces 18 and 20 terminate at an appropriate position before reaching the rear edge of the side surfaces 18 and 20, for example, a substantially intermediate position in the front-rear direction.

  As described above, the front portion 14 and the left and right side portions 18 and 20 of the packaging box 10 in the present embodiment are formed with a pair of continuous upper and lower cut lines 50, 56; 52, 58, which are understood from FIG. As shown, the portions 54, 60, 62 between the upper and lower cut lines 50, 56; 52, 58 function as one straight opening piece. The opening pieces 54, 60, 62 can be cut from the packaging box 10 from the left side surface portion 18 to the front surface portion 14 and the right side surface portion 20, or vice versa. In the embodiment, the cutting lines 50, 52, 56, and 58 are formed in a shape that facilitates excision from the left side surface portion 18 in consideration of the convenience of opening piece excision work by a right-handed person. Further, as shown in FIG. 3, the end portions 56a and 58a of the cut lines 56 and 58 in the left side surface portion 18 are perforations with a small interval, and vertical perforations 64 that connect the top and bottom are formed. Yes. This is because the end of the opening piece 60 can be grasped by pushing the finger between the cut lines 56 and 58 with a light force.

  On the left and right side surfaces 18 and 20, from the end of the upper cut line 56, the upper portion of the rear edge 65 of the side surface portions 18 and 20, preferably the intersection of the side surface portions 18 and 20, the rear surface portion 16, and the upper surface portion 22. One inclined cut line 68 extending obliquely upward to 66 is formed. The inclined cut line 68 is a normal perforation. Further, a cut line (third cut line) 70 is formed along the corner between the rear surface portion 16 and the upper surface portion 22, that is, between the upper ends of the left and right inclined cut lines 68. This cut line 70 is also a normal perforation.

  When opening the packaging box 10 having such a configuration, first, a finger is pushed between the end portions 56 a and 58 a of the cut lines 56 and 58 in the left side surface portion 18. As a result, the perforations 56a, 58a, 64 are torn and the end of the opening piece 60 can be picked. Thereafter, the opening piece 60 is pulled, and the opening pieces 60, 54, and 62 are continuously cut from the left side surface portion 18 through the front surface portion 14 to the right side surface portion 20. The cut lines 50, 52, 56, and 58 forming the opening pieces 54, 60, and 62 extend horizontally in both the front surface portion 14 and the side surface portions 18 and 20, and the paper fibers constituting the packaging box 10. Since the direction is also oriented substantially horizontally, it is possible to cleanly cut the opening pieces 54, 60, 62 without peeling off the surface layer of the packaging box 10.

  When the opening pieces 54, 60, 62 are excised, a finger is inserted into the excised portion, and the upper portion of the front face 14 is pulled upward. As a result, an upward tensile force acts on the upper portions of the side surface portions 18 and 20, and the side surface portions 18 and 20 are cut up and down along the inclined cut line 68. At this time, opposite tensile forces are applied to the planar side portions 18 and 20 with the inclined cut line 68 as a boundary, but the portion other than the portion on the inclined cut line 68 has high strength, and the cutting is not performed. It is performed reliably along the inclined cut line 68.

  Finally, the upper portion of the packaging box 10 is cut out along the cut line 70 between the rear surface portion 16 and the upper surface portion 22. This state is the state shown in FIG. The packaging box 10 in the opened state shown in FIG. 2 supports the lower part of a product (not shown) such as a patch housed inside, and the rear surface portion 16 having the same height as the product is used for the product. Can be reliably supported. When viewed from the front, most of the upper part of the product can be seen, so that it can function as a display box for the product. Moreover, since the height of the front half of the side surface parts 18 and 20 is constant at the same height as the front surface part 14, and the rear half of the side surface parts 18 and 20 is also gradually raised toward the rear, the product is taken out from the side. Becomes easy. Furthermore, as will be understood from FIG. 2, the aesthetic appearance is also excellent.

  Although the best embodiment of the present invention has been described in detail above, it goes without saying that the present invention is not limited to the above embodiment. For example, the height positions and widths of the cut lines 50, 52, 56, and 58 are appropriately changed depending on the product to be packaged.

It is a perspective view which shows the packaging box by this invention. It is a perspective view of the packaging box of FIG. 1 which shows an open state. It is an expanded view of the packaging box of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Packaging box 12 ... Bottom part 14 ... Front part 16 ... Rear part 18, 20 ... Side part 22 ... Top part 50, 52 ... (First) cut line 54, 60, 62 ... Opening piece 56, 58 ... (Second) score line 68 ... inclined score line 70 ... (third) score line

Claims (1)

A front part, a side part connected to each of the left and right edges of the front part, a rear part connecting between the rear edges of the left and right side parts, an upper part closing the top opening, and closing the bottom part opening In a packaging box comprising a bottom portion,
Two upper and lower first cut lines formed horizontally in the front portion;
Two upper and lower second cut lines formed on each of the side surface parts so as to extend horizontally from the respective end parts of the first cut line, before reaching the rear edge of the side surface part. The second score line terminating at
An inclined cut line extending obliquely upward from a rear end portion of the second cut line to a rear end edge of the side surface portion;
A packaging box, comprising: a third cutting line connecting between the rear end portions of the left and right inclined cutting lines.

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