JP2017088223A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box which allows a user to smoothly tear a left cutting line and a right cutting line with small force, with a simple structure.SOLUTION: A packaging box 10 comprises a box body part 80 capable of storing a stored article W, and a lid part 90 which is provided continuously to the box body part 80 through a cutting possible line 70. The cutting possible line 70 comprises: a central cutting line 71; a left cutting line 72 extending from a left end of the central cutting line 71 to a front face side part of a left back face flap 31 or to a bottom face side part of a left upper face flap 51; and a right cutting line 73 extending from a right end of the central cutting line 71 to a front face side part of a right back face flap 32 or to a bottom face side part of a right upper face flap 52. An upper face plate 50 has at least one horizontal rule 53 extending from a position other than left and right both ends on the central cutting line 71 to a front face side, in the packaging box 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging box that is formed of a single sheet-like blank and includes a box main body portion that can store a stored article and a lid portion that is connected to the box main body portion via a cut-away line. In particular, the present invention relates to a packaging box that can use the box body as an exhibition box after removing the lid.

  2. Description of the Related Art Conventionally, there has been known a packaging box that is formed of a single sheet-like blank and includes a box main body portion that can store a stored article and a lid portion that is connected to the box main body portion via a cut-away line. In the packaging box described in Patent Document 1, the box main body portion is used as a display box after the cuttable wire is broken and the lid portion is removed.

  The packaging box described in Patent Document 1 includes a bottom plate, a back plate connected to the back side of the bottom plate via a fold line, and a back fold line to the top side of the back plate. An upper surface plate connected in series, a left rear flap connected to the left side of the back plate via a fold line, and a right rear flap connected to the right side of the back plate via a fold line A left upper surface flap connected to the left side of the upper surface plate via a crease line, and a right upper surface flap connected to the right side of the upper surface plate via a crease line. A central cut line is provided so as to extend from the left end to the right end of the back side crease line between the back plate and the top plate.

  However, in the packaging box described in Patent Document 1, the left and right upper flaps and the right and left upper flaps are folded and overlapped with the packaging box assembled. Since it is not bonded, the strength as a packaging box cannot be secured.

Japanese Patent Laying-Open No. 2015-107831

  Therefore, as one proposal that enables separation of the box main body portion and the lid portion by breaking the cuttable line while improving the strength as a packaging box, as shown in FIG. 11 and FIG. A left side cut line 172 extending from the left end of the center cut line 171 to the front side of the left side back flap 131 is formed on the left side back flap 131 that is connected to the right side back flap 131, and a right side back surface from the right end of the center cut line 171 is formed on the right side back flap 132. A right cut line 173 extending to the front side of the flap 132 is formed, and a separation part 131b separated from the base 131a of the left rear flap 131 by the left cut line 172 is bonded to the left upper flap 151, and the right cut line 173 The separation part 132b separated from the base part 132a of the right back flap 132 is replaced with the right upper face flap. It is considered to adhere to 52.

  In FIG. 11, the left cut line 172 is illustrated for easy understanding, but the left back flap 131 in which the left cut line 172 is formed is disposed inside the left top flap 151, and the left cut line 172 is not visible from the outside.

  In the packaging box 110 shown in FIG. 11 and FIG. 12, first, after pushing the pushing portion 133 toward the inside of the packaging box 110, the top plate 150 is lifted to break the central cut line 171, and then the top plate By further lifting 150, the left cut line 172 and the right cut line 173 are broken.

  However, in the packaging box 110 shown in FIG. 11 and FIG. 12, the left cut line 172 and the right side line 172 are used mainly by utilizing the force for separating the base parts 131a and 132a and the separating parts 131b and 132b generated by lifting the top plate 150. Although the cut line 173 is broken, the left cut line 172 and the right cut line 173 may not be broken smoothly depending on the formation accuracy of the left cut line 172 and the right cut line 173, the material of the packaging box 110, and the like.

  Therefore, the present invention is to solve these problems, and an object of the present invention is to provide a packaging box capable of smoothly breaking the left cut line and the right cut line with a small force with a simple configuration. It is.

  The present invention is a packaging box that is formed of a single sheet-like blank and includes a box main body portion that can store a stored article and a lid portion that is connected to the box main body portion via a cut-away line. A bottom plate, a back plate connected to the back side of the bottom plate via a fold line, and a top plate connected to the top side of the back plate via a back fold line. A face plate, a left back flap connected to the left side of the back plate via a crease line, a right back flap connected to the right side of the back plate via a crease line, and the top plate A left upper surface flap connected to the left side portion of the upper surface plate via a crease line, and a right upper surface flap connected to the right side portion of the upper surface plate via a crease line. A central cut line extending from the left end to the right end of the back side crease line, and the left back flap or the left top A left cut line formed on at least one of the flaps and extending from the left end of the central cut line to the front side of the left back flap or the bottom side of the left top flap; and at least the right back flap or the right top flap A right cut line formed on one side and extending from a right end of the center cut line to a front side portion of the right back flap or a bottom side portion of the right top flap, and the upper surface plate includes the right side cut line on the center cut line. The problem is solved by forming at least one ruled line extending from a portion other than the left and right ends toward the front side.

  According to the first aspect of the present invention, after at least one ruled line extending from the portion other than the left and right ends on the central cut line toward the front side is formed on the upper surface plate, the central cut line is ruptured. When breaking the left and right cut lines by lifting the top plate, the top plate bends along the ruled line as the top plate is lifted, and the left and right ends of the back side of the top plate are moved inward in the left-right direction. Therefore, a shear force is applied to the upper ends of the left and right cut lines to break the upper ends of the left and right cut lines, and the left and right cut lines start with this broken portion and have a small force. Can be broken smoothly.

According to the second aspect of the present invention, the upper surface plate is lifted by forming two ruled lines extending from the two ruled line starting points spaced apart from each other on the central cut line toward the front side. When breaking the left cut line and right cut line, the user can lift the top plate by placing his hand between the two ruled lines, so that the fingers are sandwiched by the top plate bent along the ruled line This can be avoided, and the left and right cut lines can be broken safely and smoothly.
According to the third aspect of the present invention, the back plate is formed with a pushing portion that protrudes downward from the back side crease line, and the central cut line extends from the left end of the back side crease line to the left ruled line starting portion. And a right side portion extending from the right end of the back side crease line to the right ruled line starting point, and a pushing portion defining part extending from the left ruled line starting point through the back plate to the right ruled line starting point. The center cut line, the left cut line, and the right cut line can be broken by a simple operation of lifting the top plate after pushing the pushing part of the back plate toward the inside of the packaging box. Opening can be achieved easily and smoothly.
According to the fourth aspect of the present invention, when the two ruled lines are formed so that the interval between the two ruled lines increases toward the front side, the upper surface plate is lifted to break the left cut line and the right cut line. In addition, since it is possible to move the left and right ends of the back side portion of the top plate toward the inner side in the left-right direction, it is necessary to break the upper ends of the left and right cut lines. The force can be reduced and the opening of the packaging box can be achieved smoothly.

The perspective view which shows the state in the middle of opening of the packaging box which concerns on 1st Embodiment of this invention. The top view which shows the state which expand | deployed the packaging box of 1st Embodiment. The perspective view which shows the opening method of the packaging box of 1st Embodiment. Explanatory drawing which shows the fracture | rupture method of the cutable line formed in the packaging box. Explanatory drawing explaining the packaging method of an accommodation article. Explanatory drawing which shows the modification of a packaging box. The perspective view which shows the state in the middle of opening of the packaging box which concerns on 2nd Embodiment of this invention. The top view which shows the state which expand | deployed the packaging box of 2nd Embodiment. The perspective view which shows the one aspect | mode of the opening method of the packaging box of 2nd Embodiment. The perspective view which shows the reference example of a packaging box. The perspective view which shows the other reference example of a packaging box. The top view which shows the state which expand | deployed the packaging box shown in FIG.

  Below, packaging box 10 concerning a 1st embodiment of the present invention is explained based on a drawing.

  The packaging box 10 of the first embodiment is a wrap-around packaging box formed by a blank made of a single sheet of cardboard, and as shown in FIGS. 1 and 2, a bottom plate 20 and a back plate 30, a first front plate 40, a top plate 50, and a second front plate 60. Each of these plates 20 to 60 is formed in a rectangular shape.

  As shown in FIG. 2, the back plate 30 is connected to the back side of the bottom plate 20 via a crease line. The first front plate 40 is connected to the front side of the bottom plate 20 via a crease line. Further, the upper surface plate 50 is connected to the upper surface side portion of the rear surface plate 30 via a rear surface crease line 74. The second front plate 60 is connected to the front side portion of the top plate 50 via a crease line. In addition, the code | symbol A shown in FIG. 2 has shown the eye direction (direction where the hollow flows) of corrugated cardboard.

  In addition, as shown in FIG. 2, the packaging box 10 includes a left bottom flap 21, a right bottom flap 22, a left back flap 31, a right back flap 32, a first left front flap 41, and a first right front. A flap 42, a left upper surface flap 51, a right upper surface flap 52, a second left front flap 61, and a second right front flap 62 are provided. Each of these flaps 21 to 62 is formed in a rectangular shape.

  As shown in FIG. 2, the left bottom flap 21 and the right bottom flap 22 are connected to the left side or the right side of the bottom plate 20 via a crease line. The left rear flap 31 and the right rear flap 32 are connected to the left side or right side of the back plate 30 via a crease line. The first left front flap 41 and the first right front flap 42 are connected to the left side or the right side of the first front plate 40 via a crease line. Further, the left upper surface flap 51 and the right upper surface flap 52 are connected to the left side portion or the right side portion of the upper surface plate 50 via a crease line. The second left front flap 61 and the second right front flap 62 are connected to the left side or right side of the second front plate 60 via a crease line.

  The left bottom flap 21 is disposed so as to be overlapped with the left back flap 31 and the first left front flap 41 and bonded to the left back flap 31 and the first left front flap 41. The right bottom flap 22 is disposed so as to overlap the right back flap 32 and the first right front flap 42, and is bonded to the right back flap 32 and the first right front flap 42. The left upper flap 51 is disposed so as to be folded over the left rear flap 31 and the second left front flap 61, and is adhered to the left rear flap 31 and the second left front flap 61. Further, the right upper surface flap 52 is disposed so as to overlap the right rear surface flap 32 and the second right front flap 62 and is bonded to the right rear surface flap 32 and the second right front flap 62.

  As shown in FIG. 2, the left rear flap 31 has a base 31a connected to the back plate 30 and a separation part 31b separated from the base 31a by a left cut line 72 to be described later. Bonded to the upper surface flap 51. Similarly, the right back flap 32 has a base portion 32a that is connected to the back plate 30 and a separation portion 32b that is separated from the base portion 32a by a right cut line 73 that will be described later, and is separated from the right upper surface flap 52 by the separation portion 32b. Glued.

  In addition, the vertical relationship of the flaps 21 to 62 arranged in a folded manner, that is, any one of the two flaps 21 to 62 arranged in a folded manner is arranged outside or inside the packaging box 10. What is necessary is just to determine arbitrarily according to embodiment. Moreover, what is necessary is just to determine arbitrarily according to embodiment whether the two flaps 21-62 arrange | positioned by overlapping are bonded. Moreover, about the method of adhering each flap 21-62 arrange | positioned by folding, it is not limited to adhesion | attachment.

  As shown in FIGS. 1 and 2, the packaging box 10 is formed with a perforated cut-away line 70. By breaking the cut-away line 70, the packaging box 10 has a box body portion 80. And the lid 90 is separated into two parts.

  In the present embodiment, the box body 80 includes the bottom plate 20, the left bottom flap 21, the right bottom flap 22, the back plate 30, the left back flap 31, the right back flap 32, the first front plate 40, and the first left side. It is mainly composed of a front flap 41 and a first right front flap 42. The lid 90 is mainly composed of an upper plate 50, a left upper flap 51, a right upper flap 52, a second front plate 60, a second left front flap 61, and a second right front flap 62.

  As shown in FIG. 2, the cuttable line 70 is formed on the center cut line 71 extending from the left end to the right end of the back side fold line 74, the left cut line 72 formed on the left back flap 31, and the right back flap 32. And a right cut line 73.

As shown in FIG. 2, the center cut line 71 includes a left side portion 71 a extending from the left end of the back side fold line 74 to a midpoint of the back side fold line 74 (a left ruled line starting point portion 71 d described later), and a back side fold line 74. A right portion 71b extending from the right end to a midpoint of the back side fold line 74 (right ruled line starting point portion 71e described later), and a substantially U-shape extending from the right end of the left portion 71a to the left end of the right portion 71b through the back plate 30. And a pressing portion defining portion 71c.
A portion defined by the pushing portion defining portion 71 c and the back side crease line 74 functions as the pushing portion 33 formed on the back plate 30 so as to protrude downward from the back side fold line 74.

As shown in FIG. 2, the left cut line 72 extends obliquely with respect to the front side of the left back flap 31 from the left end of the center cut line 71 to the front side of the left back flap 31.
Further, as shown in FIG. 2, the right cut line 73 extends obliquely from the right end of the center cut line 71 to the front side of the right back flap 32 with respect to the front side of the right back flap 32.

  In this embodiment, the left cut line 72 is formed on the left back flap 31. However, as shown in FIGS. 6A and 6B, the left cut line 72 is formed on the left back flap 31 or the left top face. It suffices if it is formed on at least one of the flaps 51. Similarly, the right cut line 73 only needs to be formed on at least one of the right rear surface flap 32 or the right upper surface flap 52. Further, when the cut lines 72 and 73 are formed on the upper surface flaps 51 and 52, the cut lines 72 and 73 extend from the left end or the right end of the central cut line 71 to the bottom side of the upper surface flaps 51 and 52, and the left rear flap 31 and the right side. As in the case of the back flap 32, the separating portions 51 b and 52 b separated from the base portions 51 a and 52 a by the cut lines 72 and 73 are bonded to the back flaps 31 and 32.

The upper surface plate 50 is formed with at least one ruled line 53 extending from the portion other than the left and right ends on the central cut line 71 toward the front side.
In the present embodiment, as shown in FIGS. 1 and 2, the top plate 50 has two ruled lines 53 extending from the two ruled line starting points 71d and 71e on the central cut line 71 toward the front side. Is formed. These two ruled lines 53 extend halfway on the top plate 50 so that the distance between them increases toward the front side.

  Next, a method for opening the packaging box 10 of the present embodiment will be described below.

  First, as shown in FIG. 3A, by pushing the pushing portion 33 toward the inside of the packaging box 10, the pushing portion defining portion 71 c of the central tear line 71 is broken, and the user's hand is placed inside the packaging box 10. Insert into.

  Next, as shown in FIG. 3A, the left side portion 71 a and the right side portion 71 b of the central cut line 71 are broken by lifting the top plate 50.

  Next, as shown in FIG. 3B, the upper surface plate 50 is further lifted to break the left cut line 72 of the left back flap 31 and the right cut line 73 of the right back flap 32.

  At this time, as shown in FIG. 4, as the upper surface plate 50 is lifted, the upper surface plate 50 bends along the ruled line 53, and the left and right ends of the back side portion of the upper surface plate 50 are pulled inward in the left-right direction. Since it can be moved, a shearing force is applied to the upper ends of the left cut line 72 and the right cut line 73 to break the upper ends of the left cut line 72 and the right cut line 73, and the left cut line starting from the broken portion. 72 and the right cut line 73 can be broken with a small force.

  In FIG. 4, the left cut line 72 is illustrated for easy understanding, but the left back flap 31 on which the left cut line 72 is formed is disposed inside the left top flap 51, and the left cut line 72 72 is not visible from the outside.

  Finally, as shown in FIG. 3C, the lid 90 is removed to complete the opening of the packaging box 10.

  Next, a method for packaging the stored article W will be described below with reference to FIG.

  First, as shown in FIGS. 5A to 5B, after placing the packaging box 10 on the work surface with the bottom plate 20 facing downward, the accommodation article W is disposed on the inner surface of the bottom plate 20. To do.

  Next, as shown in FIGS. 5C to 5E, the plates 20 to 60 and the flaps 21 to 62 are folded so as to wrap the contained article W, and the folded flaps 21 to 62 are bonded to each other.

  Thus, in the packaging box 10 of this embodiment, the packaging of the accommodation article W can be completed without changing the attitude of the packaging box 10 or the accommodation article W during the operation when packaging the accommodation article W.

  Next, the packaging box 10 which concerns on 2nd Embodiment of this invention is demonstrated based on FIGS. Here, in the second embodiment, the partial configuration is completely the same as that of the first embodiment described above, and therefore, the description of the configuration other than the difference is omitted.

  First, in the packaging box 10 of the second embodiment, as shown in FIGS. 7 to 9, the upper surface plate 50, the left upper surface flap 51, and the right upper surface flap 52 are separated from the bottom side portion of the left upper surface flap 51. At least one additional cut line 75 extending linearly to the bottom side of the right upper surface flap 52 is formed. In this embodiment, two additional cut lines 75 are formed.

  These additional cut lines 75 give the packaging box 10 a second opening method, that is, by breaking the two additional cut lines 75 as shown in FIGS. , Only the front side portion of the lid 90 can be removed. Specifically, a part of the front surface side of the upper surface plate 50, a part of the front surface side of the left upper surface flap 51, and the front surface side of the right upper surface flap 52 can be removed. Part of the second front plate 60, the second left front flap 61, and the second right front flap 62 can be removed.

  Moreover, in the packaging box 10 of 2nd Embodiment, as shown to Fig.9 (a), the lower part of the 2nd front board 60 is arrange | positioned inside the 1st front board 40. FIG.

  Next, a reference example of the packaging box 10 of the present invention will be described based on FIG. Here, in this reference example, since a part of the configuration is exactly the same as that of the second embodiment described above, the description of the configuration other than the difference is omitted.

  In the packaging box 10 of the present reference example, as shown in FIG. 10, a recess 43 is formed on the upper side of the first front plate 40. Accordingly, the lower portion of the second front plate 60 can be easily inserted into the first front plate 40, and the stored article W stored in the box body 80 can be easily viewed from the front side of the packaging box 10. Become.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to the said embodiment, A various design change can be performed without deviating from this invention described in the claim. Is possible.

For example, in the above-described embodiment, the packaging box is described as being formed from corrugated cardboard. However, the specific material of the packaging box may be any sheet material.
In the above-described embodiment, the ruled line, the left and right portions of the central cut line, the left cut line, the right cut line, and the like are described as extending in a straight line. However, at least a part of the ruled line may be formed in a curved line. Good.
In the above-described embodiment, the number of ruled lines formed on the top plate is two. However, the number of ruled lines may be one or more. In addition, for various designs such as the length of ruled lines, the top plate can be bent and the left and right ends of the back side of the top plate can be moved inward in the left-right direction when the packaging box is opened. Anything can be used.
Moreover, in embodiment mentioned above, although demonstrated as what uses a packaging box in the attitude | position which orient | assigned the bottom face plate to the downward direction, the usage method of a packaging box should just be determined arbitrarily according to embodiment, for example, a top board or The packaging box may be used with the back plate facing downward.

DESCRIPTION OF SYMBOLS 10 ... Packaging box 20 ... Bottom plate 21 ... Left bottom flap 22 ... Right bottom flap 30 ... Back plate 31 ... Left back flap 31a ... Base 31b ... Separation part 32 ... Right side rear flap 32a ... Base 32b ... Separation part 33 ... Pushing part 40 ... First front plate 41 ... First left front flap 42 ... First right front flap 43 ... Recessed part 50 ... Upper face plate 51 ... Left upper face flap 52 ... Right upper face flap 53 ... Ruled line 60 ... Second front plate 61 ... Second left front flap 62 ...・ Second right front flap 70 ・ ・ ・ Cutable line 71 ・ ・ ・ Center cut line 71a ・ ・ ・ Left side portion 71b ・ ・ ・ Right side portion 71c ・ ・ ・ Pushing portion defining portion 72 ・ ・ ・ Left Tear line 73 ... right tear line 74 ... rear side crease lines 75 ... additional tear line 80 ... box body portion 90 ... lid portion W ... accommodating articles

Claims (4)

A packaging box that is formed of a single sheet-like blank and includes a box body portion that can accommodate a stored article, and a lid portion that is connected to the box body portion via a cut-away line,
A bottom plate, a back plate connected to the back side of the bottom plate via a crease line, and a top plate connected to the top side of the back plate via a back fold line; A left rear flap connected to the left side of the back plate via a fold line, a right rear flap connected to the right side of the back plate via a fold line, and a left side of the top plate A left upper surface flap connected to the part via a crease line, and a right upper surface flap connected to the right side of the upper surface plate via a crease line,
The cuttable line is formed on at least one of a center cut line extending from the left end to the right end of the back side crease line and the left back flap or the left top flap, and from the left end of the center cut line to the front side of the left back flap A left side cut line extending to a side part or a bottom side part of the left side upper surface flap, and a right side back flap or the right side upper side flap formed on at least one of the front side side part of the right side back flap from the right end of the central cut line or A right cut line extending to the bottom side of the right top flap,
The packaging box, wherein at least one ruled line extending toward a front side from a portion other than left and right ends on the central cut line is formed on the upper surface plate.   2. The packaging box according to claim 1, wherein the upper surface plate is formed with two ruled lines respectively extending from the two ruled line starting points spaced apart from each other on the central cut line toward the front side. The back plate is formed with a pressing portion protruding downward from the back side fold line,
The central cut line includes a left part extending from a left end of the back side crease line to a left side ruled line start part of the two ruled line start parts, and a right side of the two ruled line start parts from the right end of the back side crease line. A right portion extending to the ruled line starting point; and a pushing part defining unit that extends from the left ruled line starting part to the right ruled line starting part through the back plate and delimits the pushing part. The packaging box according to claim 2.   4. The packaging box according to claim 2, wherein the two ruled lines are formed such that a distance between the two ruled lines increases toward the front side. 5.

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