JP6622064B2 - Packaging box - Google Patents

Description

  The present invention relates to a hanging type packaging box in which products are packaged and hung in a store or the like.

  A conventional hanging type packaging box is disclosed in Patent Document 1. This packaging box has a cylindrical barrel portion having a rectangular cross section for storing contents such as merchandise, and the barrel portion is formed by connecting both side ends of a front plate and a back plate facing each other by a pair of side plates. The upper surface and the bottom surface of the body portion are closed by the top plate and the bottom plate, respectively.

  The top plate is connected to the upper end of the front plate via a fold line. An insertion portion is connected to the rear end portion of the top plate via a folding line. The insertion portion is bent downward from the rear end of the top plate and inserted into the trunk portion, and a locking piece projects from the tip of the insertion portion.

  The rear plate is provided with a hanging portion that protrudes upward. The suspension part is provided with a through hole for suspension. The hanging part has a protruding part in which a back plate is extended, and an overlapping part that is folded forward from the upper end of the protruding part and overlapped with the front surface and the back plate of the protruding part. The overlapping portion has an engagement hole with which a locking piece protruding from the insertion portion is engaged, and is disposed between the back plate and the insertion portion. Thereby, while being able to improve the intensity | strength of a hanging part, an overlap part is prevented from coming off by a locking piece. Moreover, the packaging box can maintain the state which closed the upper surface of the trunk | drum by engagement with the engagement hole of a latching piece.

Japanese Patent Laid-Open No. 11-105852 (page 4, FIGS. 4 and 6)

  Generally, an appealing surface on which a picture, a photograph, a character, or the like related to contents such as a product is printed is formed on the front plate or the back plate of the packaging box. Thereby, it can appeal about goods.

  When the appeal surface is formed on the back plate, the appeal surface can be continuously formed on the back surface of the hanging portion, so that the appeal area can be made larger than when the appeal surface is formed on the front plate. However, when suspending a plurality of packaging boxes on a rod-shaped member with the appealing surface of the back plate facing forward, in order to suspend the foremost packaging box, the tip portion of the rod-shaped member has a width greater than the width of the trunk in the front-rear direction. Space is needed. For this reason, there has been a problem that the number of packaging boxes suspended in a limited display space is reduced.

  On the other hand, when a plurality of packaging boxes are suspended from a bar-like member with a appealing surface formed on the front plate with the appealing surface facing forward, a hanging part is attached to the tip of the bar-like member in order to suspend the frontmost packaging box It is sufficient if there is a space larger than the width in the front-rear direction. For this reason, the number of packaging boxes that can be suspended is greater than when a plurality of packaging boxes are suspended from a rod-shaped member with the appealing surface of the back plate facing forward. However, there is a problem that the appeal area becomes smaller than the case where the appeal surface is formed on the back surface of the back plate and the hanging portion.

  An object of this invention is to provide the packaging box which can improve the appeal effect about the content, without reducing the number of packaging boxes which can be displayed in the limited display space.

In order to achieve the above object, the present invention provides a packaging box formed by bending a blank plate,
A body portion formed into a cylindrical shape by connecting both side ends of the front plate and the back plate facing each other by a pair of side plates;
A suspension part that extends upward and is folded forward at the upper end and provided with a through-hole for suspension;
A top plate extending forward from the lower end of the front side of the hanging portion to form the top surface of the trunk portion;
A bottom surface portion that covers the bottom surface of the body portion;
An insertion part that is bent downward from the front end of the top plate and inserted into the body part;
And an extended portion formed by extending the front plate above the top plate.

  According to this configuration, the bottom surface of the body portion is closed by the bottom surface portion, and the contents are stored in the body portion through the upper surface of the body portion. The insertion portion is inserted into the trunk portion, and the upper surface of the trunk portion is blocked by the top plate. For example, a picture, a photograph, a character, or the like related to the contents is printed on the front plate and the extending portion. The packaging box storing the contents is suspended by inserting a rod-shaped member installed in the store through the through hole of the suspension part, for example.

  In the packaging box having the above-described configuration, the present invention is preferably provided with a bent portion formed of a horizontal fold line at the boundary between the extending portion and the front plate. According to this configuration, the extending portion is bent with respect to the front plate via the bent portion.

  Moreover, in the packaging box of the said structure, this invention is preferable when it has the cut | interruption by which the fold line of the boundary of the said suspension part and the said top plate is distribute | arranged periodically. According to this configuration, the top plate is bent with respect to the suspended portion via the folding line.

  According to the present invention, in the packaging box configured as described above, it is preferable that the extended portion has a relief portion formed of a notch in front of the through hole. According to this structure, the rod-shaped member inserted through the through hole passes through the escape portion.

  In the packaging box having the above-described configuration, the present invention provides a distance between fold lines at the front and rear ends of the top plate on the blank plate as X, and a distance between fold lines at the front and rear ends of the side plate on the blank plate. It is preferable that 3t> Y-X is satisfied, where Y and the thickness of the blank plate are t.

  According to this configuration, when the insertion portion is inserted into the trunk portion, the top plate presses the suspension portion from the front toward the rear.

  According to the present invention, in the packaging box configured as described above, the side plate includes a side flap connected to the upper end of the side plate via a folding line, and the insertion portion is inserted into the body portion when the front plate and the side flap are inserted. It is preferable to be sandwiched between.

  According to the present invention, the top plate extending forward from the lower end on the front side of the hanging portion to form the top surface of the trunk portion, and the extending portion formed by extending the front plate above the top plate, Is provided. Thereby, the appeal surface which printed the picture, photograph, character, etc. regarding a content can be formed in a front plate and an extending part, for example. Further, the packaging box can be suspended from the bar-shaped member in the store with the appealing surface of the front plate facing forward. Therefore, without reducing the number of packaging boxes that can be displayed in a limited display space, it is possible to increase the advertising area and improve the appeal effect on the contents.

The perspective view which shows the state before opening of the packaging box of 1st Embodiment of this invention. The perspective view which shows the state after opening of the packaging box of 1st Embodiment of this invention. The bottom view of the packaging box of 1st Embodiment of this invention The expanded view which shows the blank board of the packaging box of 1st Embodiment of this invention. The front view which shows the state which opened the top | upper surface board and bottom face part of the packaging box of 1st Embodiment of this invention, and crushed the trunk | drum flatly. The bottom view which shows the state which opened the top | upper surface board and bottom face part of the packaging box of 1st Embodiment of this invention, and crushed the trunk | drum flatly The perspective view which looked at a mode that it assembled from the state which crushed the trunk | drum of the packaging box of 1st Embodiment of this invention flatly from the bottom face side. Side surface sectional drawing of the packaging box of 1st Embodiment of this invention. The side view which shows a mode that the some packaging box of 1st Embodiment of this invention was piled up. The perspective view which shows the state before opening of the packaging box of 2nd Embodiment of this invention. The perspective view which shows the state before opening of the packaging box of 3rd Embodiment of this invention. The expanded view which shows the blank board of the packaging box of 3rd Embodiment of this invention. The front view which shows the state which opened the top | upper surface board and bottom face part of the packaging box of 3rd Embodiment of this invention, and crushed the trunk | drum flatly.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG.1 and FIG.2 has shown the perspective view of the packaging box of 1st Embodiment of this invention. FIG. 1 shows the packaging box 1 before opening the contents, and FIG. 2 shows the packaging box 1 after opening. The hanging-type packaging box 1 is formed by bending a blank plate 100 (see FIG. 4) into a substantially rectangular parallelepiped shape, and includes a cylindrical body portion 10, a top plate 7 and a bottom portion 6 (see FIG. 3). Stores contents (not shown). Although there is no limitation in particular in the contents, For example, clothes, such as tights, can be mentioned. The trunk | drum 10 has opening surface 10a, 10b (refer FIG. 6 about the opening surface 10b) at an upper end and a lower end, respectively. The top plate 7 forming the top surface of the packaging box 1 closes the upper opening surface 10a, and the bottom surface portion 6 closes the lower opening surface 10b.

  The body 10 is formed by connecting both side ends of the front plate 3 and the back plate 5 facing each other by a pair of side plates 2 and 4. Thereby, the trunk | drum 10 is formed in a rectangular horizontal cross section. Further, between the side plate 2 and the front plate 3 and between the side plate 4 and the back plate 5, folding portions 93 and 94 made of folding lines 90 (see FIG. 4) extending in the vertical direction of the body portion 10 are provided. Each is provided.

  A suspending portion 8 protrudes above the back plate 5. The suspension part 8 is provided with a through hole 87 for suspension. Thereby, the packaging box 1 containing the contents is suspended by inserting a rod member (not shown) for suspension installed in the store through the through-hole 87, for example.

  The hanging part 8 has a protruding part 80 and an overlapping part 81. The protrusion 80 is formed by extending the back plate 5 upward. The overlapping portion 81 is folded forward from the upper end portion of the protruding portion 80 along a fold line 90 and overlapped on the front surface of the protruding portion 80. Thereby, the overlap part 81 and the protrusion part 80 form the front part and the back part of the hanging part 8, respectively.

  The projecting portion 80 and the overlapping portion 81 are provided with holes 87a and 87b, respectively. When the overlapping portion 81 is overlapped with the front surface of the protruding portion 80, the hole portions 87a and 87b are overlapped to form the through hole 87.

  The top plate 7 is formed to extend forward from the lower end of the overlapping portion 81 via a fold line 90. An insertion portion 71 is formed at the front end of the top plate 7 so as to be bent downward through a folding line 90 and inserted into the body portion 10. The left and right ends of the insertion portion 71 abut on the side plates 2 and 4 when inserted into the body portion 10.

  Further, the extended portion 31 is formed by extending the front plate 3 above the top plate 7. That is, the extending portion 31 is formed integrally with the front plate 3. The extended portion 31 has an outer edge with a curved front surface and is arranged side by side, and a relief portion 31 a made of a notch is provided in front of the through hole 87. The extending portion 31 is formed at a predetermined distance from the left and right ends of the front plate 3. The height of the lower end of the escape portion 31 a is the same as the upper end of the front plate 3.

  A bent portion 96 including a fold line 90 is provided at the boundary between the extended portion 31 and the front plate 3. On the front plate 3 and the extending portion 31, for example, an appealing surface on which a picture, a photograph, a character, or the like related to the contents is printed is formed. Thereby, an advertising area can be ensured widely and the appeal effect about the contents can be improved.

  Further, side flaps 21 and 41 are connected to the upper ends of the side plates 2 and 4 via folding lines 90, respectively.

  FIG. 3 shows a bottom view of the packaging box 1. The bottom surface portion 6 of the packaging box 1 includes a pair of first bottom surface plates 63 and 65, a pair of adhesive pieces 63a and 65a, and a pair of second bottom surface plates 62 and 64. The first bottom plates 63 and 65 are connected to the lower ends of the front plate 3 and the back plate 5 via folding lines 90, respectively. The adhesive pieces 63a and 65a are connected to the side ends of the first bottom surface plates 63 and 65, respectively, via a fold portion 92 formed of a fold line 90 inclined with respect to the front plate 3. The second bottom plates 62 and 64 are connected to the lower ends of the side plates 2 and 4 via the folding line 90, respectively. The second bottom plates 62 and 64 are bonded to the bonding regions B1 and B2 (see FIG. 4) on the inner surfaces of the bonding pieces 63a and 65a by adhesives and the like through the bonding regions A1 and A2 (see FIG. 4), respectively.

  The front end portion of the first bottom surface plate 63 is disposed on the inner surface side of the first bottom surface plate 65 and the second bottom surface plate 64, and the front end portion of the first bottom surface plate 65 is the first bottom surface plate 63 and the second bottom surface plate 62. Arranged on the inner surface side. At this time, the first bottom surface plates 63 and 65 are engaged with each other to form the bottom surface portion 6. Details of the method of forming the bottom surface portion 6 will be described later.

  FIG. 4 shows a development view of the blank plate of the packaging box 1. The blank plate 100 is formed by punching a paper sheet having a thickness of 0.4 mm, for example, and is folded at a folding line 90 to form the packaging box 1. The folding line 90 and the folding part 92 at the boundary between the overlapping portion 81 and the top plate 7 are formed by lead rules 95, and the other folding lines 90 are formed by folding rules.

  The material of the blank board 100 is not particularly limited, and for example, paperboard such as Manila ball, cardboard, card paper, craft ball, or the like can be used. Moreover, you may form the blank board 100 with a resin sheet. As the resin sheet, for example, a transparent resin sheet made of PET (polyethylene terephthalate) or PP (polypropylene) is preferable. Thereby, the contents stored in the packaging box 1 can be easily visually confirmed.

  The side plate 2, the front plate 3, the side plate 4, and the back plate 5 are successively connected via a fold line 90, and an adhesive margin piece 55 is connected to one end of the back plate 5 via a fold line 90. An extending portion 31 is connected to the upper end of the front plate 3 via a bent portion 96. First bottom plates 63 and 65 are connected to lower ends of the front plate 3 and the back plate 5 via a fold line 90, respectively.

  A protruding portion 80 extends from the upper end of the back plate 5. An overlapping portion 81 is connected to the upper end portion of the protruding portion 80 via a fold line 90, and the top plate 7 is connected to the upper end of the overlapping portion 81 via a lead rule 95. An insertion portion 71 is connected to the upper end of the top plate 7 via a fold line 90. Hole portions 87a and 87b are formed in the protruding portion 80 and the overlapping portion 81, respectively.

  Side flaps 21 and 41 are connected to the upper ends of the side plates 2 and 4 via folding lines 90, respectively, and second bottom plates 62 and 64 are connected to the lower ends of the side plates 2 and 4 via folding lines 90, respectively. It will be installed continuously. Adhesive areas A1 and A2 are formed on part of the outer surfaces of the second bottom plates 62 and 64, respectively.

  In the drawing of the first bottom plates 63 and 65, adhesive pieces 63a and 65a are connected to the right via a folding portion 92 formed of a folding line 90 inclined by about 45 ° with respect to the bottom side of the front plate 3. The Bonding regions B1 and B2 are formed on the inner surfaces of the bonding pieces 63a and 65a, respectively.

  In the blank plate 100 of FIG. 4, the side plates 2, 4 are bent by approximately 90 ° toward the inner surface side of the front plate 3 along the fold line 90. Then, the back plate 5 is bent approximately 90 ° at the fold line 90 toward the inner surface side of the side plate 4, and the paste margin piece 55 is bent approximately 90 ° at the fold line 90 toward the inner surface side of the back plate 5.

  At this time, the extending portion 31 is formed at a predetermined distance from the left and right ends of the front plate 3. Thereby, when the side plates 2 and 4 are folded at the fold line 90 with respect to the front plate 3, generation of wrinkles and creases that impair the appearance on the extended portion 31 is prevented, and the appearance of the packaging box 1 is poor. Can be reduced.

  And the outer surface of the glue margin piece 55 is adhere | attached on the inner surface of the rear-end part (right end part in FIG. 4) of the side plate 2 with an adhesive agent. Thereby, the cylindrical trunk | drum 10 is formed.

  In addition, an adhesive or the like is applied to at least one of the adhesion areas A1 and B1, and the second bottom plate 62 and the adhesive piece 63a are bonded to each other in the adhesion areas A1 and B1. An adhesive or the like is applied to at least one of the adhesion areas A2 and B2, and the second bottom plate 64 and the adhesive piece 65a are bonded to each other in the adhesion areas A2 and B2.

  Then, the side plate 2 and the front plate 3 are folded so that the side plate 2 and the front plate 3 face each other at a folding portion 93 formed by a fold line 90 between the side plate 2 and the front plate 3. The side plate 4 and the back plate 5 are folded so as to be close to each other and folded at a folding portion 94 composed of the folding line 90. Thereby, the trunk | drum 10 can be crushed flat.

  FIG. 5 shows a front view of the packaging box 1 in which the body portion 10 is flattened. FIG. 6 shows a bottom view of the packaging box 1 in which the body part 10 is flattened. The inner surfaces of the side plates 2 and 4 are close to the inner surfaces of the front plate 3 and the back plate 5, respectively. At this time, the first bottom plates 63 and 65 are separated from each other. That is, the engagement of the first bottom plates 63 and 65 is released. The folding part 92 is bent toward the inside of the body part 10 (valley-folded when viewed from the outside of the body part 10), and the adhesive pieces 63a and 65a are arranged to overlap the first side plates 63 and 65, respectively. The

  The packaging box 1 is transported and stored in a flat and crushed state with a small volume. Thereby, the transportation cost and storage cost of the packaging box 1 can be reduced.

  From the state of FIG. 5, the folding parts 93 and 94 are pressed with fingers in a direction approaching each other. Thereby, the trunk | drum 10 is raised so that the side plates 2 and 4 may become substantially perpendicular | vertical with respect to the front plate 3 and the back plate 5. FIG.

  FIG. 7 is a perspective view illustrating a state in which the bottom surface portion 6 is formed when the packaging box 1 is assembled from the state of FIG. 5 in which the body portion 10 is flattened. As described above, when the folding portion 93 is pushed toward the folding portion 94 to raise the trunk portion 10, the folding portion 92 that is bent toward the inside of the trunk portion 10 is folded back, and the first bottom surface plates 63 and 65. Engage with each other to form the bottom surface portion 6. At this time, the tip of the first bottom plate 65 is disposed on the inner surface side of the first bottom plate 63 and the second bottom plate 62. Further, the front end portion of the first bottom plate 63 is disposed on the inner surface side of the first bottom plate 65 and the second bottom plate 64.

  As described above, the bottom surface portion 6 is also formed at the same time as raising the body portion 10 crushed flat. That is, the packaging box 1 has a so-called auto bottom structure. Thereby, the packaging box 1 can be easily assembled at the place where the contents are stored in the packaging box 1. And in the trunk | drum 10 which formed the bottom face part 6, the content is accommodated via the upper opening surface 10a.

  After the contents are stored in the body portion 10, the side surface flaps 21 and 41 are bent toward the inside of the body portion 10 through the folding line 90. Thereafter, the overlapping portion 81 is folded forward at the upper end of the protruding portion 80 from the state of FIG. Thereby, the suspending part 8 is formed as shown in FIG. At this time, since the overlapping portion 81 does not enter the body portion 10, the hanging portion 8 can be easily formed and the number of assembling steps of the packaging box 1 can be reduced.

  Thereafter, the top plate 7 is bent on the side flaps 21 and 41 by the lead ruler 95 from the state of FIG. 2 and the insertion portion 71 is bent downward by the fold line 90. Then, the insertion portion 71 is inserted into the trunk portion 10. Thereby, the top plate 7 closes the opening surface 10 a above the trunk portion 10, and the contents are stored in the packaging box 1.

  At this time, the lead ruled line 95 is formed between the overlapping portion 81 and the top plate 7, so that the top plate 7 can be easily bent with respect to the overlapping portion 81. For this reason, when the top surface plate 7 closes the opening surface 10a of the body portion 10, the overlapping portion 81 easily comes into contact with the protruding portion 80, and the top surface plate 7 moves rearward. Thereby, the insertion part 71 can be prevented from being caught on the extended part 31, and the insertion part 71 can be easily inserted into the body part 10. The folding line 90 at the boundary between the overlapping portion 81 and the top plate 7 may be formed by a perforation instead of the lead ruled line 95. That is, it suffices if the folding line 90 at the boundary between the overlapping portion 81 and the top plate 7 is provided with periodic cuts.

  Here, the distance between the fold lines 90 at the front and rear ends (upper and lower ends in FIG. 4) of the top plate 7 on the blank plate 100 is X, and the front and rear ends of one side plate 4 on the blank plate 100 (left and right in FIG. 4). Let Y be the distance between the folding lines 90 at the end. When the thickness of the blank plate 100 is t, the distance L1 in the front-rear direction of the inner surface of the body portion 10 is about Yt, and the distance L2 from the back surface of the overlapping portion 81 to the front surface of the insertion portion 71 is about X + t. Yes (see FIG. 8).

  Usually, the distance L2 is formed shorter than the distance L1, and if the difference between the distance L1 and the distance L2 is reduced, the rear end of the top plate 7 is brought closer to the protruding portion 80 when the insertion portion 71 is inserted into the body portion 10. . At this time, if the difference between the distance L1 and the distance L2 is made smaller than the thickness t as shown in the equation (1), the rear end of the top plate 7 is sufficiently close to the protruding portion 80, and the lower end of the overlapping portion 81 is lifted. Can be prevented. That is, by satisfying Expression (2) obtained by modifying Expression (1), it is possible to prevent the lower end of the overlapping portion 81 from being lifted and to prevent the upper surface of the packaging box 1 from being opened. The distance L2 may be formed slightly larger than the distance L1.

L1-L2 = (Yt)-(X + t) <t (1)
3t> YX (2)

  In the present embodiment, the distance X is set to 49 mm, the distance Y is set to 50 mm, and the thickness t is set to 0.4 mm so as to satisfy the above formula (2).

  FIG. 8 shows a side sectional view of the packaging box 1. The insertion portion 71 inserted into the body portion 10 is sandwiched between the front plate 3 and the side surface flaps 21 and 41. At this time, both side ends of the insertion portion 71 are in contact with the side plates 2 and 4 respectively. Thereby, the insertion part 71 can be prevented from coming off from the body part 10, and the packaging box 1 can maintain a state in which the upper surface is closed.

  Further, a bent portion 96 including a fold line 90 is provided at the boundary between the extended portion 31 and the front plate 3. Accordingly, as shown in FIG. 9, when the plurality of packaging boxes 1 containing the contents are transported or stored in a state where the top plates 7 are close to each other and face each other, the extending portion 31 is a bent portion 96. It bends easily. Thereby, it is possible to prevent generation of wrinkles and creases that impair the appearance on the extended portion 31 and to reduce the appearance defect of the packaging box 1.

  Then, a hanging rod-shaped member installed in the store is inserted into the through hole 87 of the hanging portion 8, and the packaging box 1 is suspended with the appealing surface of the front plate 3 facing forward. At this time, since the extended portion 31 has the escape portion 31a in front of the through hole 87, collision between the rod-shaped member and the extended portion 31 can be reduced. Further, even when the rod-shaped member inserted through the through hole 87 hits the extended portion 31, the extended portion 31 is easily bent at the bent portion 96. Therefore, it is possible to prevent wrinkles and creases on the extended portion 31.

  A customer who has purchased a product in which the contents are stored in the packaging box 1 can open the top plate 7 by taking out the insertion portion 71 from the trunk portion 10 and take out the contents. At this time, when the top plate 7 is moved rearward, the overlapping portion 81 is arranged on substantially the same plane as the protruding portion 80. This makes it difficult for the contents to be caught on the overlapping portion 81 when the contents are taken out. Therefore, the user can easily take out the contents.

  Then, as shown in FIG. 5, the packaging box 1 from which the contents have been taken out is folded at the folding portions 93 and 94 and crushed flat, thereby reducing the volume and reducing the dust volume.

  According to the present embodiment, the top plate 7 that extends forward from the lower end on the front side of the suspending portion 8 to form the top surface of the trunk portion 10, and the front plate 3 that extends above the top plate 7 are formed. The extended part 31 is provided. Thereby, the appeal surface which printed the picture, photograph, character, etc. regarding the contents on the front plate 3 and the extending part 31 can be formed. Moreover, the packaging box 1 can be suspended from the bar-shaped member in the store with the appealing surface of the front plate 3 facing forward. Therefore, without reducing the number of packaging boxes 1 that can be displayed in a limited display space, the advertising area can be increased and the appeal effect on the contents can be improved.

  Further, a bent portion 96 including a horizontal fold line 90 is provided at the boundary between the extending portion 31 and the front plate 3. Thereby, when a plurality of packaging boxes 1 are transported or stored in a state in which the extending portion 31 of one packaging box 1 is in contact with the top plate 7 or the bottom surface portion 6 of the other packaging box 1, the extending portion 31 is easily bent at a bent portion 96. Therefore, generation | occurrence | production of the wrinkles and crease | fold which impairs aesthetics on the extension part 31 can be prevented, and the external appearance defect of the packaging box 1 can be reduced.

  Further, even when the rod-shaped member inserted through the through hole 87 hits the extended portion 31, the extended portion 31 is easily bent at the bent portion 96. Therefore, it is possible to prevent wrinkles and creases on the extended portion 31.

  Further, since the fold line 90 at the boundary between the suspended portion 8 and the top plate 7 is formed by the lead rule 95, the top plate 7 can be easily bent with respect to the overlapping portion 81. For this reason, when the top surface plate 7 closes the opening surface 10a of the body portion 10, the overlapping portion 81 easily comes into contact with the protruding portion 80, and the top surface plate 7 moves rearward. Thereby, the insertion part 71 can be prevented from being caught on the extended part 31, and the insertion part 71 can be easily inserted into the body part 10. As a result, the assemblability of the packaging box 1 can be improved.

  Further, the extending portion 31 has an escape portion 31 a formed by a notch in the front of the through hole 87. Thereby, when inserting a rod-shaped member in the through-hole 87, the collision with a rod-shaped member and the extension part 31 can be reduced.

  Further, the distance between the front and rear fold lines 90 of the top plate 7 on the blank plate 100 is X, the distance between the front and rear fold lines 90 of the side plate 4 on the blank plate 100 is Y, and the thickness of the blank plate 100 is When t, 3t> Y-X is satisfied. Thereby, the rear end of the top plate 7 is sufficiently close to the protrusion 80. Therefore, the lower end of the overlapping portion 81 can be prevented from being lifted, and the upper surface of the packaging box 1 can be prevented from being opened.

  The insertion portion 71 is sandwiched between the front plate 3 and the side surface flaps 21 and 41 when inserted into the body portion 10. Thereby, the removal from the trunk | drum 10 of the insertion part 71 can be prevented, and the closing property of the packaging box 1 can be improved.

Second Embodiment
Next, a second embodiment of the present invention will be described. FIG. 10 shows a perspective view of the packaging box of this embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the shape of the extending portion 31 is different from that of the first embodiment. Other parts are the same as those in the first embodiment.

  Unlike the first embodiment, the extending portion 31 is formed over substantially the entire width of the body portion 10 in the left-right direction. Further, the distance H between the lower end of the escape portion 31 a and the upper end of the front plate 3 is formed to be equal to or less than the distance between the lower end of the overlapping portion 81 and the lower end of the through hole 87. Thereby, when the rod-shaped member is inserted into the through hole 87, collision between the rod-shaped member and the extending portion 31 can be reduced.

  In this embodiment, the same effect as that of the first embodiment can be obtained. Further, since the extended portion 31 is formed over substantially the entire width of the body portion 10 in the left-right direction, the front end of the top plate 7 is shielded by the extended portion 31. Thereby, when the appeal surface of the front plate 3 is seen, the front end of the top plate 7 is not visually recognized, and the aesthetic appearance of the packaging box 1 can be improved.

<Third Embodiment>
Next, a third embodiment of the present invention will be described. FIG. 11 shows a perspective view of the packaging box of the present embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the arrangement of the extending portion 31 and the configuration of the hanging portion 8 are different from those in the first embodiment. Other parts are the same as those in the first embodiment.

  The extending portion 31 is provided to be deviated to the left from the central portion of the front plate 3 in the left-right direction. When a hanging rod-shaped member (not shown) is inserted through the through hole 87, the rod-shaped member passes to the right of the extending portion 31. Thereby, when the packaging box 1 is suspended from the rod-shaped member, interference between the extending portion 31 and the rod-shaped member can be prevented. Further, the protruding portion 80 and the overlapping portion 81 are bonded by the adhesive 200.

  FIG. 12 is a development view showing the blank plate 100 of the packaging box 1. Adhesive regions C1 and C2 are formed on the inner surfaces of the protruding portion 80 and the overlapping portion 81, respectively. First, the overlapping portion 81 is bent through the folding line 90, and the overlapping portion 81 is bonded to the bonding region C1 of the protruding portion 80 by the adhesive 200 in the bonding region C2. Thereby, the protrusion part 80 and the overlap part 81 are adhere | attached, and the hanging part 8 is formed. At this time, the top plate 7 is bent by the lead ruler 95 and the top plate 7 is stacked on the overlapping portion 81. The adhesive 200 is not particularly limited, and for example, a hot melt adhesive, a two-component mixed adhesive, or the like can be used. In addition, it may replace with the adhesive agent 200 and may stick the protrusion part 80 and the overlap part 81 with a double-sided adhesive tape.

  Thereafter, the outer surface of the adhesive margin piece 55 is bonded to the inner surface of the rear end portion (right end portion in FIG. 12) of the side plate 2 with an adhesive or the like. Thereby, the cylindrical trunk | drum 10 is formed. At this time, the top plate 7 superimposed on the overlapping portion 81 is disposed outside the trunk portion 10. In addition, an adhesive or the like is applied to at least one of the adhesion areas A1 and B1, and the second bottom plate 62 and the adhesive piece 63a are bonded to each other in the adhesion areas A1 and B1. Further, an adhesive or the like is applied to at least one of the adhesion areas A2 and B2, and the second bottom plate 64 and the adhesive piece 65a are bonded to each other in the adhesion areas A2 and B2.

  FIG. 13 shows a front view of the packaging box 1 in which the body portion 10 is flattened. In the packaging box 1 (folded body) in a state where the body portion 10 is flattened, the protruding portion 80 and the overlapping portion 81 are bonded. For this reason, when the trunk portion 10 is raised and the insertion portion 71 is inserted into the trunk portion 10, the overlapping portion 81 does not float from the protruding portion 80. Therefore, the insertion part 71 can be easily inserted into the body part 10, and the workability in assembling the packaging box 1 can be improved.

  Further, in the packaging box 1 in a state where the body portion 10 is flattened, the projecting portion 80 and the overlapping portion 81 are bonded, so that the lead rule 95 is covered and protected by the projecting portion 80. Thereby, it is possible to prevent the top plate 7 and the overlapping portion 81 from being broken at the lead ruler 95 when the packaging box 1 in a state in which the body portion 10 is flattened is transported or stored.

  In this embodiment, the same effect as that of the first embodiment can be obtained. Further, since the overlapping portion 81 is bonded to the protruding portion 80, the overlapping portion 81 does not float from the protruding portion 80 when the trunk portion 10 is raised and the insertion portion 71 is inserted into the trunk portion 10. Therefore, the insertion part 71 can be easily inserted into the body part 10, and the workability in assembling the packaging box 1 can be improved.

  In the second embodiment, the protruding portion 80 and the overlapping portion 81 may be bonded.

  Moreover, in 1st Embodiment-3rd Embodiment, the solid shape of the packaging box 1 is not limited to a substantially rectangular parallelepiped shape, For example, polygonal column shapes, such as a hexagonal column shape, may be sufficient.

  Moreover, in 1st Embodiment-3rd Embodiment, although the front shape of the extension part 31 is a shape which has a curved outer edge, it is not limited to this, For example, the polygonal shape which does not have a curved outer edge Etc.

  INDUSTRIAL APPLICABILITY The present invention can be used for a hanging type packaging box in which products are packaged and hung in a store or the like.

DESCRIPTION OF SYMBOLS 1 Packaging box 2, 4 Side plate 3 Front plate 5 Back plate 6 Bottom surface part 7 Top surface plate 8 Hanging part 10 Trunk part 21, 41 Side flap 31 Extension part 31a Escape part 55 Adhesive margin piece 62, 64 2nd bottom board 63, 65 First bottom plate 63a, 65a Adhesive piece 71 Insertion part 80 Projection part 81 Overlap part 87 Through hole 90 Folding line 92, 93, 94 Folding part 95 Lead rule 96 Bending part 100 Blank board

Claims (6)

In a packaging box formed by bending a blank plate,
A body portion formed into a cylindrical shape by connecting both side ends of the front plate and the back plate facing each other by a pair of side plates;
A suspension part that extends upward and is folded forward at the upper end and provided with a through-hole for suspension;
A top plate extending forward from the lower end of the front side of the hanging portion to form the top surface of the trunk portion;
A bottom surface portion that covers the bottom surface of the body portion;
An insertion part that is bent downward from the front end of the top plate and inserted into the body part;
A packaging box, comprising: an extension portion formed by extending the front plate above the top plate.   The packaging box according to claim 1, wherein a bent portion including a horizontal fold line is provided at a boundary between the extended portion and the front plate.   The packaging box according to claim 1, wherein the packaging box has a cut line in which a fold line at a boundary between the hanging part and the top plate is periodically arranged.   The packaging box according to any one of claims 1 to 3, wherein the extending portion has a relief portion formed of a notch in front of the through hole.   When the distance between the fold lines at the front and rear ends of the top plate on the blank plate is X, the distance between the fold lines at the front and rear ends of the side plate on the blank plate is Y, and the thickness of the blank plate is t. The packaging box according to any one of claims 1 to 4, wherein 3t> Y-X is satisfied. A side flap connected to the upper end of the side plate via a fold line;
The packaging box according to any one of claims 1 to 5, wherein the insertion portion is sandwiched between the front plate and the side flaps when inserted into the body portion.

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