JP2010215286A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box in which a pair of inner lid pieces have high strength against an external force to the direction which approaches to each other. <P>SOLUTION: The peripheral wall (51) of a shape of which the quadrangular angle sections have been chamfered is formed of four side plates (1-4) and slanting wall plates (8-11) between adjoining the side plates (1-4), and there are provided a pair of inner lid pieces (13, 14) prepared continuously at the upper edge of a pair of the side plates (1, 3) which oppose each other, a pair of outer lid pieces (18, 19) prepared continuously at the upper edge of the other pair of the side plates (2, 4) which oppose each other, and four bottom plate pieces (20-23) prepared continuously at the lower edge of the four side plates (1-4), and a pair of the inner lid pieces (13, 14) are in contact with respective tip sections (131, 141) and both side edges (132, 142) of the respective inner lid pieces (13, 14) are in contact with inner surfaces of the other pair of the side plates (2, 4) and a releasing hole (53) into which a finger is inserted is prepared between both the tips. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging box used for packing and transporting articles.

  A packaging box used for this type of application is usually a rectangular parallelepiped, and has a pair of inner plates connected to upper edges of a side plate forming a rectangular or square peripheral wall and a pair of opposing side plates in plan view. A lid piece, a pair of outer lid pieces provided continuously with the upper edges of another pair of opposite side plates, and a bottom plate piece provided continuously with the lower edges of the four side plates are provided. Further, conventionally, a packaging box having a planar peripheral wall in which a diagonal wall plate is provided between two adjacent side plates and four corners of a quadrangle are chamfered is also known (see Patent Document 1).

  In any conventional packaging box, the pair of opposing inner lid pieces is set to a short dimension in which a space is created between both front ends when the article is stored and then folded inward. Therefore, both the inner lid pieces can be opened immediately by putting a hand into the space when opening the box. On the other hand, the pair of outer lid pieces is set to have such a length that both tip portions are in contact with each other in the width direction when folded inward. Thereby, it can connect with an adhesive tape etc. in the state which faced both front-end | tip parts, and can keep a box stably in the closed state.

JP 2000-326954 A

  For example, a packaging box in which a heavy article such as a resin bottle containing a liquid such as drinking water is packed is required to have a high strength because a large external force is easily applied during carrying. However, in the conventional packaging box, since there is a space between the tip portions of the pair of inner lid pieces, a large external force is applied particularly to the vicinity of the inner lid pieces in the pair of side plates where the inner lid pieces are connected. Since the inner lid piece is displaced in the space when it is received, the side plate cannot be sufficiently supported against the external force, so that a problem in which the vicinity of the inner lid piece in the side plate is recessed is likely to occur.

  An object of this invention is to provide the packaging box which has high intensity | strength with respect to the external force in a direction in which a pair of inner lid pieces adjoin each other.

  In order to achieve the above object, the packaging box of the present invention has four side plates and a slant wall plate between the adjacent side plates, and peripheral walls having a shape in which square corners are chamfered are formed to face each other. A pair of inner lid pieces that are connected to the upper edges of the pair of side plates, a pair of outer lid pieces that are connected to the upper edges of the other pair of opposite side plates, and the lower edges of the four side plates Four bottom plate pieces connected to each other, the pair of inner lid pieces are in contact with the tip portions, and both side edges of the inner lid pieces are in contact with the inner surfaces of the other pair of side plates, An opening hole for inserting a finger is provided between the two end portions.

  According to this packaging box, since the pair of inner lid pieces are assembled in a state in which the tips of the inner lid pieces are in contact with each other when the article is sealed after storing the articles, the pair of inner lid pieces are directed in the opposing direction of the pair of inner lid pieces. Even when a large external force is applied, the inner lid pieces stick to each other, so that the strength of the pair of side plates connected to the inner lid pieces against the external force is improved, and the locations near the inner lid pieces on each side plate are increased by the external force. It can prevent dents. Furthermore, since both side edges of each inner lid piece are in contact with the inner surfaces of the other pair of side plates facing each other, the inner lid piece supports the side plates even when a large external force is applied in the opposing direction of the pair of outer lid pieces. Therefore, the strength of the vicinity of the outer lid piece in the other pair of side plates is also improved, and each side plate can be prevented from being dented by an external force.

  On the other hand, when opening the packaging box, by inserting a finger into an opening hole provided between both end portions of the pair of inner lid pieces, the pair of inner lid pieces without gaps can be easily opened by touching each other. be able to. In addition, since the peripheral wall has a shape in which the corners of the square are chamfered, the strength against the compressive force in the vertical direction of the peripheral wall is increased and the usage fee of the material is reduced as compared with the case where the shape is a square shape. In addition, when transporting a packaging box in a state where articles are stored and packed, when a plurality of packaging boxes are stacked on a pallet and covered with a shrink film, the shrinkage film is not angular, so that the shrink film can be prevented from being damaged. is there.

  In the present invention, it is preferable that the four slant wall plates have the same width, and the width is 1/10 to 1/5 of the short side of the quadrangle. According to this structure, the said effect by providing a slant wall board can be ensured, suppressing the reduction | decrease of the storage capacity of a packaging box.

  In the present invention, the pair of side plates provided with the inner lid pieces may be configured to have a width smaller than that of the other pair of side plates. As a result, since the piece continuously connected to the side plate having a small width becomes the inner lid piece as in the conventional case, the assemblability is improved and no assembly error occurs.

  According to the packaging box of the present invention, since the pair of inner lid pieces touch each other, the inner lid pieces stick to each other even when a large external force is applied in the opposing direction of the pair of inner lid pieces. Thereby, the intensity | strength with respect to the external force of a pair of side plate with which the inner cover piece was provided in a row improves. In addition, since both side edges of each inner lid piece are in contact with the inner surfaces of the other pair of side plates, the strength of the other pair of side plates against a large external force in the opposing direction of the pair of outer lid pieces is improved.

It is an expanded view of the packaging box which concerns on one Embodiment of this invention. It is a perspective view which shows a state when the surrounding wall of the packaging box is formed. It is a perspective view which shows a state when the bottom wall of the packaging box is formed. It is a top view which shows the state which accommodated the article | item in the packaging box of FIG. It is a perspective view which shows a state when the inner cover piece of the packaging box is closed. It is a perspective view which shows a state when the outer cover piece of the packaging box is closed. (A) is the expanded view of the packaging box, (b) is the expanded view of the conventional packaging box shown for the comparison.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a developed view of a packaging box according to an embodiment of the present invention, and shows a box material 100S for creating the packaging box 100 of FIG. The packaging box 100 includes a peripheral wall 51 including four side plates 1 to 4 in FIG. 2 and four slanted wall plates 8 to 11 therebetween, a pair of inner lid pieces 13 and 14, a pair of outer lid pieces 18 and 19, and It has four bottom plate pieces 20 to 23 and has a shape in which square corners are chamfered by inclined wall plates 8 to 11 in plan view.

  A box material 100S shown in FIG. 1 is obtained by punching a well-known paper or resin double-sided cardboard in which liners are bonded to both sides of a corrugated plate. In the box material 100S, the first to fourth side plates 1 to 4 are arranged in the horizontal direction, and the first to fourth slanted wall plates 8 to 11 are disposed between the adjacent side plates 1 to 4 and outside the first side plate 1. The connecting piece 12 is located outside the fourth slant wall plate 11. Further, the first and second inner lid pieces 13 and 14 are positioned above the first and third side plates 1 and 3 which are a pair of side plates facing each other in the assembled state (FIG. 2), The second outer lid pieces 18 and 19 are positioned above the second and fourth side plates 2 and 4 which are another pair of side plates facing each other in the assembled state, and the first to fourth bottom plate pieces 20 to 20 are disposed. 23 is located below the first to fourth side plates 1 to 4.

  The first to third slanted wall plates 8 to 10 are integrally connected to adjacent side plates 1 to 4 through folds 1d, 2c, 2d, 3c, 3d, and 4c on both sides, respectively. The four slant wall plates 11 are integrally connected to the connection piece 12 and the first side plate 1 via the folds 11a and 1c on both sides. The first and second inner lid pieces 13 and 14 are integrally connected to the upper edges of the first and second side plates 1 and 3 through the folds 1a and 3a. The outer lid pieces 18 and 19 are integrally connected to the upper edges of the second and fourth side plates 1 and 3 through the folds 2a and 4a. A semicircular cutout 24 for opening is formed on the upper end side of the second inner lid piece 14. The notch 24 may be formed in the first inner lid piece 13 instead of the second inner lid piece 14 or may be formed in both inner lid pieces 13 and 14. Further, the first to fourth bottom plate pieces 20 to 23 are integrally connected to the lower edge of the first to fourth side plate pieces through the folds 1a, 2b, 3b and 4b, respectively.

  The adjacent inner lid pieces 13 and 14 and the outer lid pieces 18 and 19 are separated by cuts 28 to 30, and from both ends of the upper end sides of the slant wall plates 8 to 10 located between the adjacent side plates 1 to 4, Triangular cutouts 31-33 are formed, each leading to cuts 28-30. In addition, the first inner lid piece 13 has a shape corresponding to the right half of the cutout 31 (on the first outer lid piece 18 side) at a portion in contact with the fold 1a on the side opposite to the cut 28. A notch 43 is formed. Further, the second outer lid piece 19 has a shape corresponding to the left half (second inner lid piece 14 side) of the cutout 35 at a portion in contact with the crease 4a on the side opposite to the cut 30. A notch 44 is formed. The first and fourth bottom plate pieces 20 and 23 are also formed with notches 48 and 49 having the same shape as that formed on the first inner lid piece 13 and the second outer lid piece 19, respectively.

  The folds 1a and 3a between the inner lid pieces 13 and 14 and the side plates 1 and 3 are provided on the extended line of the upper end side of the inclined wall plates 8 to 10, whereas the outer lid pieces 18 and 19 and the side plates 2 and 4 are provided. The folds 2a and 4a are provided slightly above the upper end sides of the slanted wall plates 8 to 10, and the folds 1a and 3a and the folds 2a and 4a have the thickness of the double-faced cardboard forming the box material 100S. They are spaced apart in the vertical direction by a substantially equal interval R. On the other hand, the adjacent bottom plate side members 20-23 are also separated by the cuts 34, 38, 39, and the cuts 34, 38 are respectively formed from both ends of the lower end side of the slant wall plates 8-10 located between the adjacent side plates 1-4. , 39 are formed, and the folds 2b and 4b are provided so as to be shifted downward from the folds 1b and 3b by an interval R.

  Both the inner lid pieces 13 and 14 are substantially rectangular having the same lateral width A and length C, and both the outer lid pieces 18 and 19 are both rectangular having the same lateral width B and length D. . The first and third bottom plate pieces 20 and 22 have the same rectangular shape as the inner lid pieces 13 and 14, and the second and fourth bottom plate pieces 21 and 23 have the same shape as the outer lid pieces 18 and 19. The rectangular shape. Therefore, the box material 100S has a vertically symmetrical shape with respect to the center line SL in the length direction of the side plates 1 to 4. The lateral width A of the inner lid pieces 13, 14 is equal to the short side of the planar quadrangle formed by the outer surface of the peripheral wall 50, and the lateral width B of the outer lid pieces 18, 19 is equal to the long side thereof.

  Next, a procedure for assembling the packaging box 100 of one embodiment of the present invention using the box material 100S of FIG. 1 will be described. First, when the peripheral wall 51 is formed, as shown in FIG. 2, the outer wall of the connecting piece 12 is bent along the longitudinal folds 1c, 1d, 2c, 2d, 3c, 3d, 4c, and 11a. It is overlapped with the inner surface and fixed with a stopper 50 or an adhesive. Thereby, the surrounding wall 51 used as the trunk | drum of the packaging box 100 is formed. The peripheral wall 51 has an odd-shaped octagonal shape in which rectangular corners in a plan view formed by the side plates 1 to 4 are chamfered by the inclined wall plates 8 to 11.

  Subsequently, the first and third bottom plate pieces 20 and 22 are bent 90 ° inward along the folds 1b and 3b, and the second and fourth bottom plate pieces 21 and 23 are bent along the folds 2b and 4b. Inwardly bent by 90 °, as shown in FIG. 3, the end portions of the second and fourth bottom plate pieces 21 and 23 that are in contact with each other are fixed with a stopper 50 or an adhesive tape. Thereby, the bottom wall of the packaging box 100 is formed. In this state, the tip portions of the first bottom plate piece 20 and the third bottom plate piece 22 and the tip portions of the second bottom plate piece 21 and the fourth bottom plate piece 23 are abutted with each other without a gap.

  As shown in FIG. 4, the partition plate 25 is inserted into the packaging box 100 in a state where the bottom wall is formed, and the internal space is divided into, for example, twelve pieces. The bottle 27 filled with a liquid such as water is packed. The packaging box 100 has a shape that can suppress a decrease in internal volume due to the formation of the inclined wall plates 8 to 11. That is, as shown in FIG. 1, each of the slanted wall plates 8 to 11 has the same width E, and the width E is set to 1/10 to 1/5 of the rectangular short side A. . Therefore, the reduction in the storage volume is such that no trouble occurs when the articles are packed. In particular, when the article is a cylindrical bottle 27, the four corners of the packaging box 100 become useless spaces. Therefore, even if the slanted wall plates 8 to 11 are formed, the number of stored bottles 27 is not reduced.

  When the article 27 is packed in a box, as shown in FIG. 5, when the inner lid pieces 13 and 14 are folded inward along the folds 1a and 3a, the end portions 131 and 131 of the inner lid pieces 13 and 14 are mutually connected. Contact the contact state. That is, the length C of the inner lid pieces 13, 14 is set to half of the long side B of the planar square of the packaging box 100. The tip portions 131 and 141 of the inner lid pieces 13 and 14 are in contact with each other, so that the notch 24 of the second inner lid piece 14 and the tip edge of the first inner lid piece 13 have a semicircular shape. An opening hole 53 is formed.

  Further, as described in FIG. 1, the folds 1 a and 3 a between the inner lid pieces 13 and 14 and the side plates 1 and 3 are larger than the folds 2 a and 4 a between the outer lid pieces 18 and 19 and the side plates 2 and 4. Since it is provided at a position shifted downward by the thickness of the double-sided cardboard, the inner lid pieces 13 and 14 are respectively arranged on the second and fourth side plates 2 and 4 with opposite side edges 132 and 142 facing each other. It fits between both side plates 2 and 4 in a state of contacting the inner surface. Furthermore, the notch formed by the cutouts 31 to 33 of the inner lid pieces 13 and 14 and the notch 43 formed in the first inner lid piece 13 overlap the upper end surfaces of the respective slant wall plates 8 to 11, Part of the inner lid pieces 13 and 14 does not protrude to the side of the inclined wall plates 8 to 11.

  Finally, as shown in FIG. 6, when the outer lid pieces 18 and 19 of the packaging box formed by the outer lid pieces 18 and 19 are folded inward along the folds 2a and 4a, as in the conventional packaging box, The front end portions 181 and 191 of the outer lid pieces 18 and 19 are in contact with each other. Therefore, the length D of the outer lid pieces 18 and 19 is set to half of the short side A of the square. Further, the cutouts 31 to 33 and the notches 43 and 44 provided on both sides of the inner lid pieces 13 and 14 and the outer lid pieces 18 and 19 allow the root portions of the inner lid pieces 13 and 14 and the outer lid pieces 18 and 19 to be formed. It overlaps with the upper end edges of the side plates 1 to 4 and the inclined wall plates 8 to 11. The end portions 181 and 191 of the outer lid pieces 18 and 19 that are in contact with each other are fixed by sticking the adhesive tape 52, and the lid closing is completed.

  Since this packaging box 100 is assembled in a state in which the pair of inner lid pieces 13 and 14 are in contact with each other's tip portions 131 and 141, a large external force F1 in the opposing direction of the inner lid pieces 13 and 14 is the first. Even if it is added to the third side plates 1 and 3, the strength of the first and third side plates 1 and 3 against the external force F1 is improved by the inner lid pieces 13 and 14 sticking to each other. Therefore, it is possible to prevent the dent K from being generated by the external force F1 in the vicinity of the inner lid pieces 13 and 14 in the side plates 1 and 3 as in the prior art.

  Further, in addition to the pair of outer lid pieces 18 and 19 being assembled in a state where the tip portions 181 and 191 are in contact with each other, both side edges 132 and 142 of the inner lid pieces 13 and 14 shown in FIG. Since it fits between the side plates 2 and 4 in contact with the inner surfaces of the pair of side plates 2 and 4, even if a large external force F2 is applied in the opposing direction of the pair of outer lid pieces 18 and 19, both outer lid pieces In addition to the 18 and 19 sticking to each other, the inner lid pieces 13 and 14 support the side plates 2 and 4 from the inside, so that the strength of the second and fourth side plates 2 and 4 with respect to the external force F2 is improved, It is possible to prevent the vicinity of the outer lid pieces 18 and 19 on the side plates 2 and 4 from being recessed by the external force F2.

  Further, since the packaging box 100 has a shape in which the peripheral wall 51 is chamfered by four inclined wall plates 8 to 11 at the corners of the plane square, the strength of the peripheral wall 51 against the vertical compression force increases. . In addition, when transporting the packaging box in which the articles are stored and packed, when the plurality of packaging boxes are stacked on the pallet and covered with the shrink film, the peripheral wall 51 is not square, so that the shrinkage of the shrink film is reduced. On the other hand, when opening the packaging box, the tip portions 131 and 141 of the pair of inner lid pieces 13 and 14 are in contact with each other. By inserting a finger into the opening hole 53 provided between the both ends, The lid pieces 13 and 14 can be easily opened.

  Furthermore, since the peripheral wall 51 is a chamfered, irregular octagon, which is not a regular octagon, the entire width W1 of the peripheral wall 51 is smaller than the conventional full width W2, as shown in FIG. .

  The present invention is not limited to the one having the rectangular peripheral wall 51 but can be applied to one having a square peripheral wall. Furthermore, various additions, modifications, or deletions can be made without departing from the scope of the present invention, and such modifications are also included in the scope of the present invention.

1 to 4 Side plates 8 to 11 Slanted wall plates 13 and 14 Inner lid pieces 18 and 19 Outer lid pieces 20 to 23 Bottom plate piece 51 Peripheral wall 53 Opening holes 131 and 141 End portions 132 and 142 of the inner lid piece Side of the inner lid piece Edge A Short side B Long side E Width of slant wall plate

Claims (3)

The four side plates and the slant wall plate between the side plates adjacent to each other form a peripheral wall with a square corner chamfered,
A pair of inner lid pieces connected to the upper edges of the pair of opposite side plates, a pair of outer lid pieces connected to the upper edges of the other pair of opposite side plates, and the four side plates And four bottom plate pieces connected to the lower edge of the
The pair of inner lid pieces are in contact with the tip portions, and both side edges of the inner lid pieces are in contact with the inner surfaces of the other pair of side plates,
A packaging box provided with an opening hole for inserting a finger between the two tip portions.   The packaging box according to claim 1, wherein the four slanted wall plates have the same width, and the width is 1/10 to 1/5 of a short side of a square.   3. The packaging box according to claim 1, wherein the pair of side plates provided with the inner lid pieces are smaller in width than the other pair of side plates.

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