JP3129447U - Paper carrying case - Google Patents

Abstract

Provided is a paper carrying case which is extremely high load resistance even when formed of paperboard and can be suitably used for a plurality of packages of heavy objects to be stored.
A paper carrying case having a rectangular cylindrical body, a bottom 61 for closing a lower end of the body, and a handle part straddling the upper part of the body is formed of paperboard. The bottom flaps 54, 56, 58, and 60 are connected to the lower end edges of the side plates 8, 9, 10, and 11 to form the bottom portion 61. Each bottom flap extends inward in the horizontal direction from each side plate, and adjacent bottom flaps are superposed with each other, and adjacent bottom flaps are bonded to each other. The bottom flap 58 that overlaps with the inner surfaces of the bottom flaps 54 and 56 has a shape that substantially corresponds to the bottom shape of the trunk portion, and covers substantially the entire bottom portion 61 from the inside of the trunk portion.
[Selection] Figure 3

Description

  The present invention relates to a paper carrying case that is portable in a state in which a plurality of objects are accommodated.

  2. Description of the Related Art Conventionally, a paper carrying case has been known in which a plurality of items to be stored such as beverage bottles and cans are arranged and packaged so that they can be easily carried. This type of paper carrying case includes a bottomed rectangular tube-shaped barrel portion that accommodates a plurality of objects to be stored, and a handle portion provided on the upper portion of the barrel portion. And since this kind of paper carrying case is formed of paperboard, it is not only lightweight and inexpensive, but also has the advantage of easy recycling and incineration after use.

  However, on the other hand, the paper carrying case is easily distorted because it is made of paperboard, especially when multiple heavy items are wrapped and carried. Damage may occur. Therefore, in the carrying case formed of paperboard, for example, there is an inconvenience that it is impossible to wrap and carry a heavy to-be-contained item such as a large beverage bottle or can with a large content.

  In order to eliminate such inconveniences, the present invention provides a paper carrying case that has extremely high load resistance even when formed of paperboard, and can be suitably used for multiple packaging of heavy objects to be stored. With the goal.

  In order to achieve such an object, the present invention provides a body portion formed of a paperboard and formed into a rectangular tube shape by four side plates facing each other, a bottom portion closing the lower end of the body portion, A paper carrying case that includes a handle portion continuously provided on both side plates facing in one direction across the opened upper portion of the body portion, and is portable in a state in which a plurality of items to be stored are accommodated, The bottom portion includes a bottom flap that is connected to the lower edge of each side plate via a crease line, and each bottom flap extends inward in the horizontal direction from each side plate, and adjacent bottom flaps overlap each other. Adjacent bottom flaps are bonded to each other, and one bottom flap that overlaps with the inner surface of at least any two bottom flaps has a shape that substantially corresponds to the bottom shape of the barrel portion, and the bottom portion from the inside of the barrel portion. Abbreviated whole Wherein the cover.

  Further, in the present invention, the handle portion has a handle hole that can be gripped by penetrating a finger, and the handle hole is formed in a shape that gradually expands downward, and the vertical direction of the handle hole A portion where the inner edge extending in the direction intersects with the inner edge extending in the lateral direction is continuously formed in an arc shape.

  Further, it is preferable that the paperboard for forming the paper carrying case of the present invention is a G flute thin means cardboard.

  According to the present invention, the bottom flaps constituting the bottom portion extend inward in the horizontal direction from the side plates and the adjacent bottom flaps are overlapped with each other, and the adjacent bottom flaps are bonded to each other. At this time, by providing an adhesive part near one side edge of each bottom flap and providing a crease line that inclines along the adhesive part, each bottom flap is in an adhesive state at the same time when the body is folded flat. Therefore, a so-called bottom lock type bottom portion that can be folded before and after use can be formed, which is advantageous for storage when not in use.

  And in the state which formed the bottom part, one bottom flap superposed on the inner surface side of at least any two bottom flaps has a shape substantially corresponding to the bottom part shape of the trunk part, and the bottom part from the inside of the trunk part Since it covers almost the entire surface, the inner surface of the bottom portion becomes substantially flat, and the peripheral edge of the bottom flap that covers substantially the entire bottom portion is firmly supported by the base end portion of the bottom flap below (below the lower edge of the side plate). In addition, the strength of the bottom portion is remarkably improved, and extremely high load resistance can be obtained without losing the bottom due to the load even when a heavy object is packaged.

  Further, according to the present invention, the handle hole of the handle part is formed in a shape that gradually expands downward, so that when the finger is lifted through the handle hole, the handle hole is directed upward from the upper inner edge. The tensile load applied in this manner is distributed along both sides of the expanded handle hole, and a situation in which a part of the handle portion located above the handle hole is broken can be prevented. Moreover, the portion where the inner edge (the upper and lower inner edges of the handle hole) extending in the vertical direction of the handle hole and the inner edge (the inner edges on both sides of the handle hole) extending in the horizontal direction are continuously formed in an arc shape, The load can be efficiently distributed from the upper inner edge toward the inner edges on both sides. As a result, for example, breakage from the corner as in the case where a corner is formed at the boundary between the upper inner edge and the inner edge on both sides of the handle hole can be reliably prevented, and the strength of the handle portion is greatly improved. Thus, even when a heavy object is packaged, a very high load resistance can be obtained without the handle portion being broken by the load.

  Further, when the paper carrying case of the present invention is formed by thin means cardboard of G flute, the body portion and each bottom flap are formed by bending compared to the case of using thick means cardboard other than G flute. Bending distortion is reduced, and a paper carrying case with high assembly accuracy can be obtained. G flute (G stage) is a kind of so-called micro flute, the number of cores is 140-180 / 30cm, the height of the core is 0.6-0.4mm, and the paper thickness is about 0.9mm. It is a corrugated paperboard with a relatively large bending stiffness. By using G flute corrugated paperboard to form a paper carrying case, it has high vertical and horizontal compressive strength even when the paper thickness is thin, and has high cushioning properties to protect heavy objects to be stored. Can also be excellent.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the appearance of a paper carrying case according to the present embodiment, FIG. 2 is a developed view thereof, FIG. 3 is a plan view showing the bottom, FIG. 4 is a bottom view of the paper carrying case, and FIG. It is explanatory drawing which shows.

  As shown in FIG. 1, the paper carrying case 1 of the present embodiment includes a quadrangular cylindrical body portion 2 and a handle portion 3 above the body portion 2. The trunk | drum 2 is divided into plurality by the partition 4, and accommodates a to-be-stored object in this divided part. In this embodiment, the trunk | drum 2 becomes a shape suitable for accommodating six 500 ml of polyethylene terephthalate bottled drinks (not shown) to be stored. The handle part 3 is easy to carry in a state in which an object to be stored is stored in the body part 2, and includes a handle hole 5 for placing a finger. Reference numeral 6 denotes a gripping auxiliary piece continuously provided in the handle hole 5, which reduces the load applied to the finger by bending in the horizontal direction when the finger is put on the handle hole 5.

  The paper carrying case 1 of the present embodiment is formed by assembling from a paperboard 7 made of G flute corrugated cardboard, as shown in FIG. The paperboard 7 includes four side plates (a first side plate 8, a second side plate 9, a third side plate 10, and a fourth side plate 11) for forming the body portion 2. A second side plate 9 is connected to one end edge of the first side plate 8 via a fold line 12, and a third side plate 10 is connected to one end edge of the second side plate 9 via a fold line 13. A fourth side plate 11 is connected to one end edge of the side plate 10 via a crease line 14. An adhesive plate 16 is connected to the other end edge of the first side plate 8 via a crease line 15. The first side plate 8, the second side plate 9, the third side plate 10, and the fourth side plate 11 are bent at right angles in the same direction via the crease lines 12, 13, and 14, and are formed into a rectangular cylindrical body 2 ( 1). At this time, the adhesive plate 16 is bonded to a part of the inner surface side of the fourth side plate 11 via an adhesive.

  A first handle plate 17 is connected to the upper portions of the first side plate 8 and the adhesive plate 16. A handle hole forming portion 18 is formed on the first handle plate 17 so as to penetrate the front and back. The handle hole forming portion 18 is provided with a gripping auxiliary piece 6 which is continuously provided along a crease line 19 along the upper inner edge thereof.

  A pair of sticking pieces 20 and 21 are connected to both sides of the first handle plate 17 via crease lines 22 and 23, respectively. Two partitions 4 are formed between the first side plate 8 and the first handle plate 17. Both partitions 4 can be freely separated by two cut lines 24, 25, 26, 27, respectively, and one end of both partitions 4 is connected to the first handle plate 17 via fold lines 28, 29, The other ends of both partitions 4 are connected to the first side plate 8 via crease lines 30 and 31. A cut line 32 is provided between the adhesive plate 16 and the first handle plate 17, and a cut line 33 is provided between the first side plate 8 and the sticking piece 21 positioned above the first side plate 8. Yes.

  A second handle plate 34 is connected to the upper portions of the second side plate 9 and the third side plate 10. The second handle plate 34 is formed with a handle hole forming portion 35 that opens in the same shape as the handle hole forming portion 18 of the first handle plate 17 so as to penetrate the front and back. On one side of the second handle plate 34 located above the third side plate 10, a sticking piece 36 is continuously provided via a crease line 37.

  Two partitions 4 are formed between the third side plate 10 and the first handle plate 17. Both partitions 4 can be freely separated by two cut lines 38, 39, 40 and 41, respectively, and one end of both partitions 4 is connected to the second handle plate 34 via fold lines 42 and 43, The other ends of both partitions 4 are connected to the third side plate 10 via crease lines 44 and 45. A score line 46 is provided between the second side plate 9 and the second handle plate 34. Further, an adhesive fixing portion 47 is provided above the second side plate 9. One side edge of the sticking / fixing portion 47 is connected to the sticking piece 21 of the first handle plate 17 via a folding line 48, and the other side edge of the sticking / fixing portion 47 is connected to the second handle plate via a fold line 49. 34 is continuously provided on one side edge. A score line 50 is provided between the third side plate 10 and the sticking piece 36 of the second handle plate 34 located above the third side plate 10.

  A sticking / fixing portion 51 is provided above the fourth side plate 11. One side edge of the sticking fixing part 51 is connected to the sticking piece 36 of the second handle plate 34 via a folding line 52.

  A first bottom flap 54 is connected to the lower edge of the first side plate 8 via a fold line 53, and a second bottom flap 56 is connected to the lower edge of the second side plate 9 via a fold line 55. Yes. A third bottom flap 58 is connected to the lower edge of the third side plate 10 via a fold line 57, and a fourth bottom flap 60 is connected to the lower edge of the fourth side plate 11 via a fold line 59. Has been.

  Each of the bottom flaps 54, 56, 58, 60 is bent horizontally inward of the body part 2, and the bottom part 61 (see FIG. 3 and FIG. 4) is closed by partially overlapping each other to close the lower part of the body part 2. ). At this time, each bottom flap 54, 56, 58, 60 forms a bottom structure called a bottom lock type. That is, a part of the second bottom flap 56 is superposed on the upper surface (inner surface) of the first bottom flap 54 and bonded to each other, and the third bottom flap is formed on the upper surface (inner surface) side of the second bottom flap 56. A part of the fourth bottom flap 60 is superposed on the upper surface (inner surface) of 58 and bonded together. The first bottom flap 54 includes a fold line 62 inclined to one side thereof, and a swing piece 63 to which the second bottom flap 56 is bonded to the outside via the fold line 62. The third bottom flap 58 includes a fold line 64 inclined to one side thereof, and a swing piece 65 to which the fourth bottom flap 60 is bonded to the outside via the fold line 64. The folding lines 62 and 64 make the swinging pieces 63 and 65 swingable, so that the bottom flaps 54, 56, 58, and 60 are formed on the body 2 when the body 2 is folded. It is designed to be stored flat inside.

  As shown in FIG. 3, the third bottom flap 58 is formed so as to occupy a relatively large area substantially corresponding to the shape of the bottom 61, and when the bottom 61 is formed, Cover substantially the entire bottom 61 from the inside. As shown in FIG. 4, the third bottom flap 58 is supported from below by a first bottom flap 54 and a second bottom flap 56 that are bonded to each other.

  When the paper carrying case 1 shown in FIG. 1 is formed from the developed paperboard shown in FIG. 2, the first side plate 8 is folded back along the crease line 12 to the inner surface side of the second side plate 9 with reference to FIG. The fourth side plate 11 is folded back along the fold line 14 to the inner surface side of the third side plate 10. As a result, a part of the fourth side plate 11 that is superposed on the adhesive plate 16 is adhered via an adhesive and is firmly connected. At the same time, the first handle plate 17 and the second handle plate 34 are bonded and bonded together. Furthermore, one sticking piece 21 of the first handle plate 17 is attached to the sticking fixing portion 47 above the second side plate 9 via an adhesive, and the other sticking piece 20 of the first handle plate 17 is attached to the second handle plate 34. The one pasting piece 36 is pasted with an adhesive. Thus, the handle portion 3 is formed, and the handle hole forming portion 18 of the first handle plate 17 and the handle hole forming portion 35 of the second handle plate 34 are matched to form the handle hole 5. Then, the adhesive fixing piece 51 above the fourth side plate 11 is attached to the adhesive piece 36 of the second handle plate 34 with an adhesive so as to sandwich the other adhesive piece 20 of the first handle plate 17.

  On the other hand, prior to the formation of the body portion 2, the bottom flaps 54, 56, 58 and 60 are folded back to the inner surface side of the body portion 2, and the swing piece 63 of the first bottom flap 54 and the third bottom flap 58. The swing piece 65 of the third bottom flap 58 is bonded to the outer surface side of the fourth bottom flap 60 by folding the swing piece 65 of the third bottom flap 60 outward along the folding lines 62 and 64. The inner surface side of the swing piece 63 of the first bottom flap 54 is bonded to the outer surface side of the second bottom flap 56 that overlaps the outer surface side of the third bottom flap 58.

  After the parts are bonded and connected in this way, when the body part 2 is expanded into a rectangular tube shape, each partition 4 has a first side plate 8, a third side plate 10, a first handle plate 17, and the upper part of the body part 2. The body portion 2 is partitioned into a shape that is separated from the second handle plate 34 and accommodates an object to be stored, and at the same time, the body portion 2 in a state where the first handle plate 17 and the second handle plate 34 are bonded together. It is formed so as to straddle the open upper part of the. On the other hand, when the body portion 2 is expanded into a rectangular tube shape, the bottom flaps 54, 56, 58, 60 swing horizontally, and the fold lines 62, 64 extend, as shown in FIG. A bottom 61 is formed. At this time, the third bottom flap 58 substantially corresponds to the shape of the bottom portion 61, and when the bottom portion 61 is formed, it is supported from below by the first bottom flap 54 and the second bottom flap 56 that are bonded to each other. As a result, even if the weight of the object to be stored is heavy, the bottom can be prevented from falling out and the object to be stored can be firmly supported.

  In the paper carrying case 1 of the present embodiment, as shown in FIG. 2, the handle hole forming portion 18 of the first handle plate 17 and the handle hole forming portion 35 of the second handle plate 34 are both directed downward. The handle hole 5 is formed by this shape. That is, the handle hole 5 is inclined so that the pair of side inner edges 66 and 67 extending in the vertical direction gradually separate downward as shown in FIG. 5 in a state where the grip assisting piece 6 is bent horizontally. . As a result, the tensile load applied toward the upper side of the handle portion 3 from the upper inner edge 68 that extends in the lateral direction when the finger is lifted through the handle hole 5 is distributed along both sides of the handle hole 5. It is possible to prevent a situation in which a part of the handle portion 3 located at the upper part of the handle is broken.

  Further, as shown in FIG. 5, the handle hole 5 in the present embodiment includes portions 70, 71, 72, where upper and lower inner edges 68, 69 extending in the vertical direction intersect with both inner edges 66, 67 extending in the horizontal direction, respectively. 73 is continuously formed in an arc shape. Thereby, it is possible to reliably prevent breakage from the portions 70 and 71 where the upper inner edge 68 of the handle hole 5 and the both side inner edges 66 and 67 cross each other, and the strength of the handle portion 3 can be dramatically improved.

  Further, since the paper carrying case 1 of the present embodiment is formed by G flute thin means paper board 7, for example, compared to the case where thick means ball paper board other than G flute is used, the body portion 2 and the handle part 3 or the bottom flaps 54, 56, 58, 60 are bent, the bending distortion is reduced, and the paper carrying case 1 can be formed with high accuracy. Further, by adopting the G flute corrugated paperboard 7, high vertical and horizontal compressive strength can be obtained even if the paper thickness is thin. Of course, even paperboard other than G flute can be suitably used in the paper carrying case of the present invention as long as it has strength equal to or higher than G flute.

The perspective view which shows the external appearance of the paper carrying case of one Embodiment of this invention. The expanded view of the paper carrying case of this embodiment. The top view which cuts out the upper half part of the paper carrying case of this embodiment, and shows a bottom part. The bottom view of the paper carrying case of this embodiment. Explanatory drawing which shows the handle hole in the paper carrying case of this embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Paper carrying case, 2 ... Body part, 3 ... Handle part, 5 ... Handle hole, 7 ... Paperboard, 8 ... 1st side board (side board), 9 ... 2nd side board (side board), 10 ... 3rd side board ( Side plate), 11 ... Fourth side plate (side plate), 54 ... First bottom flap (bottom flap), 56 ... Second bottom flap (bottom flap), 58 ... Third bottom flap (bottom flap), 60 ... Fourth bottom Flap (bottom flap), 61 ... bottom.

Claims (3)

A trunk formed by paperboard and formed into a square cylinder by four side plates facing each other in pairs, a bottom that closes the lower end of the trunk, and a unidirectional direction straddling the opened top of the trunk In a paper carrying case that has a handle portion that is continuously provided on both side plates that face each other and is portable in a state in which a plurality of objects are accommodated,
The bottom portion includes bottom flaps connected to the lower end edge of each side plate via a crease line, and each bottom flap extends inward in the horizontal direction from each side plate and adjacent bottom flaps overlap each other, The bottom flaps adjacent to each other are bonded to each other, and one bottom flap that is superposed on the inner surface side of at least any two bottom flaps has a shape substantially corresponding to the bottom shape of the barrel portion, and from the inside of the barrel portion. A paper carrying case that covers substantially the entire bottom.   The handle portion has a handle hole that can be gripped by penetrating a finger, and the handle hole is formed in a shape that gradually expands downward, and an inner edge and a lateral direction extending in a vertical direction of the handle hole The paper carrying case according to claim 1, wherein a portion where the inner edge extending in the crossing direction is formed continuously in an arc shape.   The paper carrying case according to claim 1 or 2, wherein the paperboard is G flute thin means cardboard.

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