JP2018177290A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box in which fragments are not generated as dust after division and the division operation is easy. SOLUTION: This is a packaging box 1 in which a plurality of side walls are continuously provided in the circumferential direction. The packaging box 1 includes a notch line portion 2 formed over the entire circumferential direction of the plurality of side walls. Further, a recess forming portion 40 formed at a position adjacent to the cut line portion 2 is provided. The dent forming portion 40 is formed including a ridge line formed between adjacent side walls, and when a pushing force is applied to the dent forming portion 40 toward the inside of the box, the dent forming portion 40 is dented toward the inside of the box. The structure is such that the portion H is formed. [Selection diagram] Fig. 1

Description

  The present invention relates to a packaging box.

  Conventionally, as a cardboard packaging box, one in which perforated zippers are formed on each side wall of the box is known. Such a packaging box is divided into an upper box and a lower box by tearing a strip between two perforated lines along the line.

On the other hand, there is also known a paper packaging box provided with a perforation line for opening (see, for example, Patent Document 1).
In this packaging box, a perforation line is formed along the connection direction of each side surface. The perforations are divided at each side, and when the connection direction of each side is substantially horizontal, the side is slightly inclined upward to the right. The perforations on each side are connected via creases located between the sides.

  In this packaging box, at the time of opening, the upper part located above each perforation line in the assembled state, and the lower part located below each perforation line, in the same direction as the direction in which the screw is unscrewed. Rotate. As a result, the uncut space between the cutting lines of the perforation lines is cut, and the folding lines located between the side surfaces are also cut by the pulling force. Thereby, the packaging box is divided into upper and lower portions.

JP, 2009-91038, A

In the packaging box provided with the above-mentioned zipper, since the strip-like body which becomes a fractured piece after division is generated as dust, the process is time-consuming and complicated.
In this respect, in the packaging box of Patent Document 1, a band-shaped body which is a broken piece after division does not occur as dust. However, the perforations of the side surfaces are cut through the fold lines located between the side surfaces. Therefore, when the paper sheet is thick or when the packaging box is formed using the corrugated sheet, there is a problem that the creased line portion is difficult to break and the dividing operation is difficult to perform.

  An object of the present invention is to solve the above-mentioned problems, and to provide a packaging box in which a broken piece does not occur as dust after division, and the division operation is easy.

  In order to solve the above-mentioned subject, a packing box of the present invention is a packing box by which a plurality of side walls are connected in a peripheral direction. The packaging box includes a score line formed along the entire circumferential direction of the plurality of side walls. Moreover, the packaging box is provided with the hollow formation part formed in the position adjacent to the said score line part. The recess forming portion is formed including a ridgeline formed between the adjacent side walls, and is recessed toward the inside of the box when a pressing force is applied to the recess forming portion toward the inside of the box The recess is to be formed.

  In the packaging box of the present invention, when a pressing force is applied to the recess forming portion from the outside with a finger, a part of the score line portion is broken across the ridge line to form the recess portion. Then, when one end side and the other end side of the box are twisted along the score line section with the score line section as a boundary, the score line section broken by the formation of the depression section is taken as a trigger (starting point). The score line can be easily broken in the entire direction. Thus, the box is divided into one end and the other end bordering the score line portion. Therefore, in the packaging box of the present invention, the broken pieces do not occur as dust after division. Further, the division is easy because it is only necessary to twist the box after pressing the depression forming portion to form the depression.

  Further, in another packaging box according to the present invention, joining pieces to be stuck to the adjacent side walls are provided at circumferential end portions of the plurality of side walls. The recess forming portion is formed to include a part of the joining piece. In this configuration, when the recessed portion is formed, the score line can be broken at a portion where the joint piece and the side wall overlap, and the remaining score line can be broken as a trigger. Therefore, division can be performed without difficulty.

  Moreover, it is preferable that the notch part corresponding to the shape of the said hollow part is formed in the said side wall to which the said joining piece is stuck. In this configuration, a pressing force can be easily applied from the outside to the recess forming portion from the outside through the notch portion, and the recess can be easily formed. Therefore, division is easy to perform.

  Moreover, it is preferable that the said score line part is formed including the some notch | incision. It is preferable that the cut includes a linear portion extending in a circumferential direction, and an inclined portion which is continuous with an end of the linear portion and which is inclined with respect to the linear portion. In this configuration, when the box is twisted by an external force, a tear occurs in the inclined portion, and a tear occurs in the straight portion continuous to the inclined portion. That is, it is possible to suitably guide the crack generated at the inclined portion to the straight portion, to concentrate the external force on the straight portion, and to suitably break the score line portion. Thereby, since the score line part is broken smoothly, the division becomes easy.

  Moreover, it is preferable that the said inclination part is equipped with the linear 1st inclination part continuous with the said linear part, and the linear 2nd inclination part continuous with the edge part of the said 1st inclination part. In this configuration, when the box is twisted by an external force, a tear occurs in the second inclined portion, and a tear occurs in the first inclined portion continuously to the second inclined portion. And a crack arises in a straight part continuously to a crack of the 1st slope part. That is, the tear generated in the second inclined portion and the first inclined portion can be suitably guided to the straight portion, and the external force can be concentrated on the straight portion, so that the cut line portion can be suitably broken. Thereby, since the score line part is broken smoothly, the division becomes easier.

  Moreover, it is preferable that the said inclination part is continuously formed in each of the both ends of the said linear part. The inclined portion formed at one end of the linear portion is preferably inclined toward one end of the box. Moreover, it is preferable that the said inclination part formed in the other end of the said linear part inclines toward the other end side of a box. In this configuration, even when the box is twisted in any direction, the external force including the component in the twisting direction can be suitably concentrated on the straight portion through the inclined portion. As a result, since the straight portion is broken smoothly, the division becomes even easier.

  In the present invention, it is possible to obtain a packaging box in which the broken pieces are not generated as dust after division and the division operation is easy.

(A) is a perspective view which shows the packaging box which concerns on one Embodiment of this invention, (b) is an expansion perspective view which shows a hollow formation part. It is a blank sheet of the packaging box concerning one embodiment of the present invention. It is an expansion explanatory view of a score line part. (A) is a perspective view which shows the state which placed the finger in the hollow formation part, (b) is a perspective view which shows the state which pushed in the hollow formation part with fingers and formed the hollow part. (A) to (c) are perspective views showing operations when rotating one end side and the other end side of the box in directions different from each other with the score line part as a boundary. It is a perspective view which shows the state which the box divided up and down.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following description, the front, rear, left, right, upper, and lower directions are set for convenience in describing the packaging box, and the configuration of the packaging box is not limited.

As shown to Fig.1 (a), the packaging box 1 is a box of the rectangular solid long to an up-down direction. The packaging box 1 closes the upper opening of the trunk 10, the trunk 10 having four side walls 11 to 14 in the front, rear, left and right, the bottom plate 20 closing the lower opening of the trunk 10, and And a top plate 30.
In the trunk portion 10, a score line 2 is formed over the entire circumferential direction (see FIG. 2). Further, in the front right corner of the body portion 10, a depression forming portion 40 for forming a depression toward the inside of the box by a pressing force from the outside is provided.

  As shown in FIG. 2, the packaging box 1 is formed by mountain-folding a blank sheet S obtained by cutting out a single cardboard sheet at each ruled line. The blank sheet S shown in FIG. 2 is disposed so that the outer surface side can be seen.

Each of the ruled lines (broken lines) separating the side walls 11 to 14 of the blank sheet S, the bottom plate 20 (see FIG. 1) and the top plate 30 (see FIG. 1) is a linear groove formed by pressing the surface of the blank sheet S. .
In addition, you may form a cut in a ruled line. This makes it easier to bend the blank sheet S at the ruled lines.

Each side wall 11-14 is formed in the rectangle which an up-down direction is larger than a left-right direction, as shown to Fig.1 (a).
At the right end of the front side wall 11, as shown in FIG. 2, a joining piece 15 is continuously provided via a ruled line L4. The joining piece 15 is formed in a band shape along the right edge of the front side wall 11. The bonding piece 15 is a portion to be bonded to the inner surface of the right side wall 14 by an adhesive.

  In a portion where the front side wall 11 and the joint piece 15 are continuously provided, a recess forming portion 40 is provided across the ridge line (the ruled line L4). The depression forming portion 40 is to form a depression H (see FIG. 4B) including the ridge line (the ruled line L4).

  The hollow portion H is a substantially square pyramidal hollow formed by being pushed into the box by a pushing force from the outside as shown in FIG. 4 (b). The recess H is a recess formed with the ruled lines 41 and 42 directed from the arbitrary point A1 on the ridge line (ruled line L4) to the cutting line 2 as side edges. The ruled line 41 is formed at the right edge of the front side wall 11, as shown in FIG. 1 (b). The ruled line 42 is formed at the front edge of the joint piece 15. As shown in FIG. 2, the ruled lines 41 and 42 are set so that the distance from the ridgeline gradually increases from the arbitrary point A1 on the ridgeline (ruled line L4) toward the score line 2. Thereby, the recessed part H is formed in substantially square pyramid shape (refer FIG.4 (b)).

The upper end edge (the bottom of the substantially square pyramid shape) forming the recess H is located on the score line 2a straddling the ridge line (the ruled line L4) as shown in FIGS. That is, the hollow portion H is formed by breaking a part of the cutting line portion 2 (the cutting line portions 2a and 2a) straddling the ridge line (the ruled line L4). Here, as shown in FIG. 2, the score line portion 2 a has a linear shape.
In the depression forming portion 40, the ridge line (the ruled line L4) and the ruled lines 41 and 42 are formed with a notch (see FIG. 1 (b) and FIG. 2). In this way, the depression forming portion 40 can be easily pushed with fingers.

  As shown in FIG. 1A, the left side wall 12 is continuously provided at the left edge of the front side wall 11 via a ruled line L1. The left side wall 12 is formed perpendicular to the front side wall 11. At the rear edge of the left side wall 12, a rear side wall 13 is continuously provided via a ruled line L2 (see FIG. 2). The rear side wall 13 is formed at right angles to the left side wall 12.

The right side wall 14 is continuously provided at the right edge portion of the rear side wall 13 via a ruled line L3 (see FIG. 2). The right side wall 14 is formed at right angles to the rear side wall 13.
A triangular notch 16 is formed at the front edge of the right sidewall 14. The notch part 16 is formed corresponding to the shape of the hollow part H (refer FIG.4 (b)) formed of the hollow formation part 40, as shown in FIG.1 (b). The notched portion 16 includes an oblique side 16a along the ruled line 42 formed in the joint piece 15 and a lateral side 16b along the incision line portion 2a of the joint piece 15 (see FIG. 2). By providing such a notch portion 16, the ruled line 42 and the score line portion 2 a formed on the side of the joint piece 15 are exposed at the front edge portion of the right side wall 14.

  The body portion 10 is formed into a rectangular tube shape by the side walls 11 to 14 by joining the joining piece 15 to the inner surface of the right side wall 14 while bending the blank sheet S (see FIG. 2) at the creases L1 to L4. (See Figure 1).

  As shown in FIG. 1A, the score line 2 formed in the trunk 10 extends in the horizontal direction of the packaging box 1 and is formed over the entire circumferential direction (see FIG. 2). As shown in FIG. 3, the score line 2 includes a plurality of cuts. The incision is provided with a linear portion 3 extending in the circumferential direction, and inclined portions 4 and 4 continuous with both ends of the linear portion 3 and inclined with respect to the linear portion 3. Between the adjacent linear parts 3 and 3, an empty part S1 of a predetermined size is formed.

The inclined portion 4 continuous with the right end portion 3 b of the linear portion 3 is inclined toward one end side which is the upper side of the packaging box 1. On the contrary, the inclined portion 4 continuous to the left end portion 3 a of the linear portion 3 is inclined toward one end side which is the lower side of the packaging box 1. That is, the inclined portions 4 are different in the direction in which they are inclined on the left and right of the linear portion 3.
Here, when the inclined portion 4 inclined toward the upper side of the packaging box 1 is twisted in the direction of the white arrow X1 in FIG. Is supposed to form a crack. On the other hand, when the inclined portion 4 inclined toward the lower side of the packaging box 1 is twisted in the direction of the white arrow X2 in FIG. It is supposed to form a crevice.

The inclined portion 4 includes a linear first inclined portion 4a continuous with the linear portion 3 and a second inclined portion 4b continuous with an end of the first inclined portion 4a. The first inclined portion 4 a and the second inclined portion 4 b are inclined with respect to the straight portion 3. The inclination angle of the second inclined portion 4 b with respect to the linear portion 3 is larger than the inclination angle of the first inclined portion 4 a with respect to the linear portion 3.
As described above, when the box is twisted by an external force, a split is generated in the second inclined portion 4b, and subsequently, a split is generated in the first inclined portion 4a continuously to the split. And when a crack arises in the 1st inclination part 4a, it is comprised so that a crack may arise in the linear part 3 continuously to this.

  In addition, as shown in FIG. 3, the linear part 3 is located in the state which straddles the ruled lines L1-L3 (only the ruled line L2 is shown in figure in FIG. 3). Thereby, the part straddling the ruled lines L1 to L3 is easily broken.

As shown in FIG. 2, the bottom plate 20 is configured by front and rear bottom inner flaps 21 and 21 and left and right bottom outer flaps 22 and 22. The front and rear bottom inner flaps 21 and 21 are connected to lower edges of the front side wall 11 and the rear side wall 13 via ruled lines L5 and L6. The left and right bottom outer flaps 22 and 22 are connected to the lower edges of the left side wall 12 and the right side wall 14 via ruled lines L7 and L8.
As shown to Fig.1 (a), the bottom plate 20 is formed by overlapping and arrange | positioning the bottom outer flaps 22 and 22 on the lower side of the front and back bottom inner flaps 21 and 21, respectively. The bottom inner flaps 21, 21 and the bottom outer flaps 22, 22 are joined by an adhesive or the like.

The upper opening of the body 10 is closed by a top plate 30, as shown in FIG. 1 (a). As shown in FIG. 2, the top plate 30 is configured by front and rear inner flaps 31, 31 and left and right outer flaps 32, 32. The front and rear inner flaps 31, 31 are connected to the upper edge portions of the front side wall 11 and the rear side wall 13 via ruled lines L9, L10. The left and right outer flaps 32, 32 are connected to upper edges of the left side wall 12 and the right side wall 14 via ruled lines L11, L12.
The top plate 30 is formed by arranging the left and right outer flaps 32 and 32 on the upper side of the front and rear inner flaps 31 and 31. The inner flaps 31, 31 and the outer flaps 32, 32 are joined by an adhesive or the like.

  When the packaging box 1 as described above is opened, for example, a thumb is placed on the recess forming portion 40 as shown in FIG. 4A, and the recess forming portion 40 is pushed into the box. Then, the ridge line (the ruled line L4) is pushed into the box, and a tear occurs in the score lines 2a and 2a. And the hollow part H of substantially quadrangular pyramid shape is formed by making the ruled lines 41 and 42 into a side edge part (refer FIG.4 (b)).

  Thereafter, as shown in FIG. 5 (a), the upper and lower sides of the box are gripped with both hands with the score line 2 interposed therebetween, and as shown in FIG. 5 (b), the upper and lower sides are mutually Twist in a different axial direction (circumferential direction which is the arrow direction in the figure). Then, the remaining score lines 2 can be broken by using the score lines 2a and 2a broken as a result of the formation of the recess H (starting point). In this case, a tear occurs in the second inclined portion 4b in the inclined portion 4 of the score line 2, and a tear occurs in the first inclined portion 4a continuously to the second inclined portion 4b. And a crack arises in the straight part 3 continuously to the crack of the 1st inclination part 4a.

  That is, the crevice which arose in the 2nd inclination part 4b returns to the center via the 1st inclination part 4a, and is concentrated on the linear part 3. As a result, the score line portion 2 is easily broken around the straight portion 3 which is the portion to be cut, and as shown in FIG. 6, the packaging box 1 can be divided up and down. The stored item (not shown) accommodated in the packaging box 1 can be taken out from the opening by dividing the packaging box 1.

  In the packaging box 1 as described above, it is possible to easily break the score line 2 in the entire circumferential direction with the score lines 2a and 2a broken by the formation of the recess H as a trigger (starting point) . Thereby, the box is divided into the upper side and the lower side bordering on the score line 2. Therefore, in the packaging box 1 of the present embodiment, the broken pieces do not occur as dust after division. Further, the division is easy because it is only necessary to twist the box after pressing the depression forming portion 40 to form the depression H.

  In addition, the depression forming portion 40 is formed to include a part of the bonding piece 15. Therefore, when the hollow portion H is formed, the score line 2a is broken at a portion where the joint piece 15 and the right side wall 14 overlap, and the remaining score line 2 can be broken with this as a trigger. Therefore, division can be performed without difficulty.

  In addition, since the notch 16 corresponding to the shape of the recess H is formed, the pressing force can be easily applied from the outside to the recess forming portion 40 through the notch 16 with a finger. Therefore, the recess H can be easily formed. Therefore, division is easy to perform.

  Further, since the inclined portion 4 of the score line portion 2 includes the first inclined portion 4a and the second inclined portion 4b, it is preferable that the split produced in the second inclined portion 4b and the first inclined portion 4a be the linear portion 3 Can be guided. Therefore, external force can be concentrated on the linear part 3, and the score line part 2 can be suitably fractured. Thereby, since the score line part 2 is smoothly fractured, the division becomes easier.

  In addition, the inclined portions 4 are inclined in different vertical directions at both end portions of the linear portion 3. Thereby, even when the box is twisted in any direction, the external force including the component in the twisting direction can be suitably concentrated on the linear portion 3 via the inclined portion 4. Therefore, there is no restriction in the direction of twisting the box, and the dividing operation is easy.

As mentioned above, although embodiment of this invention was described, this invention can be suitably changed in the range which does not deviate from the meaning, without being limited to the said embodiment.
In the said embodiment, although the inclination part 4 set it as the structure which consists of the 1st inclination part 4a and the 2nd inclination part 4b, it is not restricted to this, only the 1st inclination part 4a may be sufficient. In addition to the first inclined portion 4a and the second inclined portion 4b, the inclined portion 4 may be provided with a third inclined portion continuous with the second inclined portion 4b. The inclination of this third inclined portion can be set as appropriate.

  Moreover, although the inclination part 4 was provided in the both ends of the linear part 3, it is not restricted to this, You may provide in any one. For example, when the inclined portion 4 is provided from the right end 3b of the straight portion 3 toward the upper side of the box, the upper side of the box is divided by twisting the lower side in the direction of the white arrow X1 in FIG. Packaging box 1 can be used. Further, for example, when the inclined portion 4 is provided from the left end 3a of the straight portion 3 toward the lower side of the box, the lower side of the box is twisted in the direction of the white arrow X2 in FIG. It can be set as the packaging box 1 divided. That is, by providing the inclined portion 4 on one side of the straight portion 3, the packaging box 1 can be obtained in which the twisting direction is specified.

  Moreover, although the hollow formation part 40 was provided in one place of the circumferential direction of the trunk | drum 10, it is not restricted to this, You may provide in multiple places (for example, diagonal position).

  Moreover, although the packaging box 1 showed the thing of the rectangular solid, it is not restricted to this, If it is a box which can be parted by twisting operation, the thing of various forms is employable.

  In addition, although the depression forming portion 40 is shown to have a substantially triangular depression H formed, depressions of various shapes such as a square, a circle, an ellipse, and a polygon are formed. It may be.

  Although the packaging box 1 of the present embodiment is made of cardboard, the packaging box may be formed of various known paperboards.

Reference Signs List 1 packaging box 2 score line section 2a score line section 3 straight section 4 slope section 4a first slope section 4b second slope section 11 front side wall (side wall)
12 Left side wall (side wall)
13 Rear side wall (side wall)
14 Right side wall (side wall)
15 Joint piece 16 Notched part 40 Indented part H Indented part

Claims (6)

A packaging box in which a plurality of side walls are continuously provided in the circumferential direction.
Score lines formed over the entire circumferential direction of the plurality of side walls;
And a recess forming portion formed at a position adjacent to the score line portion,
The recess forming portion is formed including a ridgeline formed between the adjacent side walls, and is recessed toward the inside of the box when a pressing force is applied to the recess forming portion toward the inside of the box A packaging box characterized in that a recess is formed. At circumferential ends of the plurality of side walls, joint pieces to be attached to the adjacent side walls are provided.
The packaging box according to claim 1, wherein the recess forming portion is formed including a part of the joining piece.   The packaging box according to claim 2, wherein a notch corresponding to the shape of the recess is formed in the side wall to which the joining piece is attached. The score line part is formed including a plurality of cuts,
The said notch | incision is provided with the linear part extended in the circumferential direction, and the inclination part which follows the edge part of the said linear part, and inclines with respect to the said linear part. The packaging box of any one of claim 3.   The inclined portion includes a linear first inclined portion continuous with the linear portion, and a linear second inclined portion continuous with an end portion of the first inclined portion. The packaging box of item 4. The inclined portion is continuously formed on each of both ends of the linear portion,
The inclined portion continuous with one end of the linear portion is inclined toward one end side of the box,
The packaging box according to claim 4 or 5, wherein the inclined portion connected to the other end of the straight portion is inclined toward the other end side of the box.

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