JP2005335751A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely store heavy and irregular-shape products and to securely retain a stored state. <P>SOLUTION: The packaging box comprises a pair of end walls 10A and 10B and a pair of side walls 11A and 11B, and also a top lid and a bottom lid connected to them. The top lid is formed of a series of flaps 18A, 18B, 19A, and 19B. The first upper flaps 18A and 18B each have a pair of first creases 24 extending so that a width from one to the other becomes narrower on the first upper side flaps 18A, 18B. The packaging box is partitioned by the first creases 24 into a bend wall 25 capable of being superimposed on external faces of the end wall 10A, 10B, and superimposition walls 26, 26 capable of being superimposed on the external face of the bend wall 25. In such a packaging box, the bend walls 25 are provided with locking parts 27 capable of locking into lockable parts 14 made on the end walls 10A, 10B. Grip holes 28 for carrying the box are also formed. The bend wall 25 and the superimposition walls 26 have a second crease 29 and third creases 30, respectively, which extend laterally. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packaging box that accommodates a plurality of products such as cabbages that are heavy and have irregular shapes.

  2. Description of the Related Art Conventionally, fruits and vegetables are transported by being housed in a packaging box having a pair of end walls and side walls that are continuous in the lateral direction, and a top cover and a bottom cover connected to the upper and lower ends of the walls. This type of product does not require hermeticity and is not uniform in shape. Therefore, the canopy is constituted by short flaps that have a small (short) protruding amount from each wall.

  However, cabbage, which is one of fruits and vegetables, has a large difference in shape and size and is heavy. Therefore, the accommodated cabbage often protrudes from the end walls and the upper ends of the side walls that surround the four sides, and in this case, the flaps constituting the canopy cannot be reliably maintained in a sealed state.

  Although the purpose is different from that of the packaging box of the present invention, there is the following as prior art document information having a similar configuration.

Japanese Utility Model Publication No. 5-82818

  In Patent Document 1, a packaging box that can be easily carried is provided for packaging cakes, and a packaging box that can be maintained in a cubic shape so that the handbag does not get in the way when displayed at a store. Specifically, in this packaging box, a canopy made of continuous flaps is connected to the upper ends of a pair of end walls and side walls that surround four sides.

  Among them, the pair of first flaps that are continuous with the end walls are provided with a pair of folding lines extending from both sides of the upper end of the corresponding end walls toward the leading edge so that the distance between them is narrow. By this folding curve, the first flap is partitioned into a bent wall portion having a substantially triangular shape and an overlapping wall portion continuous with a pair of second flaps continuous with the side wall. Further, one of the pair of second flaps is provided with the hand-holding portion, and hook portions are provided on both sides thereof. Further, the first flap is provided with a slit for inserting and locking the hook portion.

  And when using it for carrying around convenient for carrying, it bends with respect to a side wall so that the front-end | tip of a pair of 2nd flap may collide in the state which bent the said handbag part with respect to the 2nd flap. Further, the overlapping wall portion of the first flap is bent along the folding line so as to be superimposed on the bending wall portion, and the hook portion of the hand-held portion erected upward is passed through the slit of the first flap and locked.

  On the other hand, in the case of a cube shape for display at a storefront, the pair of second flaps are bent with respect to the side walls so that the hand-held portion is positioned below the opposing second flap. In addition, the bent wall portion of the first flap is bent outward with respect to the end wall, and is bent along a folding line so that the overlapping wall portion is superimposed on the upper side of the bent wall portion. Then, the first flap bent into a substantially triangular shape is inserted into a locking hole provided in the end wall and locked.

  However, since the packaging box contains cakes, the forming material is cardboard (single paper). Moreover, the cakes do not protrude from the end walls surrounding the four sides and the upper ends of the side walls. Therefore, although it can be maintained in a sufficiently cubic shape with the above configuration, it cannot be applied to a packaging box made of corrugated paper that contains fruits and vegetables that are heavy and may be accommodated in a state of protruding from the upper ends of the end walls and side walls. .

  That is, corrugated paper is thicker than cardboard and has a strong waist (repulsive force). Therefore, it is very difficult to insert the triangular first flap into the locking hole. Further, even if the first flap is inserted into the locking hole and locked, it may be detached due to the repulsive force, or the edge of the locking hole may be broken, and even locking may not be possible. These problems become prominent when the product is stored so as to protrude from the upper ends of the end walls and the side walls.

  Accordingly, an object of the present invention is to provide a packaging box made of corrugated cardboard that can reliably store a plurality of products that are heavy and have irregular shapes, and that can reliably maintain the storage state.

  In order to solve the above problems, the packaging box of the present invention includes a pair of end walls and side walls that are continuous in the lateral direction, and a canopy and a bottom cover are connected to the upper and lower ends of the boxes, and the canopies are continuous with each other. A pair of first fold lines extending from both sides of the upper end of the corresponding end wall so as to be narrowed from each other are provided on the pair of first flaps that are continuous with the end walls. A bent wall portion that is substantially triangular and overlaps the outer surface of the continuous end wall; and a superimposed wall portion that is continuous to the pair of second flaps that are continuous to the side wall and overlaps the outer surface of the bent wall portion. In the partitioned packaging box made of corrugated cardboard, the folding wall portion is provided with a locking portion that locks to the locked portion provided on the corresponding end wall, and a gripping hole for carrying is provided, and Extends in the lateral direction to the folding wall and the overlapping wall It has a configuration in which a second folding line and the third fold line.

In this packaging box, it is preferable that a slit is provided at the intersection of the third folding line and the second folding line in the overlapping wall portion.
In addition, it is preferable that the first folding line has an angle formed with the boundary line of the end wall slightly smaller than 45 degrees.

  In the packaging box of the present invention, since the second folding curve and the third folding curve extending in the lateral direction are provided in the folding wall portion and the overlapping wall portion, the locking portion provided at the tip of the folding wall portion is provided. It can be locked to the locked portion of the corresponding end wall with good workability. Further, in this locked state, the overlapping folding wall portion and the overlapping wall portion are bent by the second folding curve and the third folding curve, so that the repulsive force can be suppressed and the edge of the locking hole is broken. There is nothing. In addition, since the bent wall portion is bent, a gap is formed between the end wall and the entire box can be carried by the formed gripping hole. Further, the upper end corner of the packaging box is in a state where a plurality of walls are complicatedly overlapped, and thus has high rigidity, and can be carried with one hand gripped from the inner surface of the end wall to the gripping hole of the bent wall portion.

  Furthermore, since the slit is provided at the intersection of the third fold curve and the second fold curve, the repulsive force of the bent wall portion and the overlapping wall portion can be further reduced. Furthermore, since the first folding line has an angle formed with the boundary line of the end wall slightly smaller than 45 degrees, the second flap continuous to the overlapping wall portion is 90% to the continuous side wall. Make a bending angle of less than 1 degree. Therefore, the repulsive force of the bent wall portion and the overlapping wall portion can be further reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 5 show a packaging box according to an embodiment of the present invention. This packaging box is provided with a pair of end walls 10A, 10B and side walls 11A, 11B surrounding four sides, and a canopy and a bottom cover are continuously provided on the upper and lower edges of these.

  Specifically, the packaging box is formed by punching a well-known corrugated cardboard paper having a corrugated shin between the cover and the back paper as a continuous blank by a well-known paper punching device (not shown). Has been.

  As shown in FIG. 5 (A), the packaging box blank is provided alternately so that the end walls 10A and 10B and the side walls 11A and 11B are linearly continuous in the lateral direction. An adhesive margin 12 for adhering to the side wall 11A at the other end is connected to the edge. In each of the boundary portions of the end walls 10A and 10B, the side walls 11A and 11B, and the adhesive margin 12, a folding line 13 is provided which is formed with a ruled line so as to compress the thickness.

  Among them, the locked portions 14 for locking the first upper flaps 18A and 18B described later are provided on the end walls 10A and 10B. The locked portion 14 is provided at a first cutting line 15 curved upward, a pair of second cutting lines 16 provided at both ends of the first cutting line 15, and an upper end of the second cutting line 16. A cut-and-raised structure comprising the third cutting line 17 is used. The second cutting lines 16 and 16 are provided so as to be inclined toward the upper end so that the distance between them becomes wider. The third cutting lines 17 and 17 are substantially semicircular, and are intended to prevent breakage from occurring at the end of the locked portion 14.

  Further, upper end flaps 18A, 18B, 19A, 19B constituting a canopy are connected to the upper end edges of the end walls 10A, 10B and the side walls 11A, 11B. An adhesive margin 20 for adhering the upper flap 18B to the upper flap 19A at the other end is continuously provided. Specifically, the first upper flaps 18A and 18B connected to the end walls 10A and 10B, the second upper flaps 19A and 19B connected to the side walls 11A and 11B, and the adhesive margin 12 are connected. The margin portions 20 are continuous in the lateral direction, and a folding line 21 similar to the above is provided at each boundary portion.

  The first upper flaps 18A and 18B, the second upper flaps 19A and 19B, and the glue margin 20 are assembled on both sides of the boundary between the continuous end walls 10A and 10B, the side walls 11A and 11B, and the glue margin 12. A rectangular chamfered portion 22 is provided at the upper end corner. And the lead ruled line 23 which consists of the cutting line 23a and the folding line 23b is provided so that the lower end of these chamfering parts 22 may be continued. This improves the folding workability of the upper flaps 18A, 18B, 19A, 19B and reduces the repulsive force in the bent state. In the present embodiment, a short flap in which a predetermined gap is formed between the leading edges of the second upper flaps 19A and 19B continuous to the side walls 11A and 11B in an assembled state in which these are bent along the lead rule 23. It is constituted by.

  Among these, the first upper flaps 18A and 18B have a pair of first folding lines 24 extending from the corners of the chamfered portions 22 on both sides of the upper ends of the corresponding end walls 10A and 10B so that the distance from each other is reduced. , 24, and these first folding lines 24, 24 are divided into a central folding wall portion 25 and overlapping wall portions 26 on both sides.

  As shown in FIG. 5B, the first folding lines 24, 24 are formed such that the angle θ formed with the lead ruler 23 that is the boundary line of the end wall 10 is slightly smaller than 45 degrees. . When the angle θ formed by these first folding lines 24 and 24 is 45 degrees, when the overlapping wall portion 26 is bent with respect to the folding wall portion 25, the leading edges of the second upper flaps 19A and 19B become the end wall 10A. , 10B. In this state, when the first upper flaps 18A and 18B are bent so as to overlap the outer sides of the end walls 10A and 10B, a strong repulsive force is generated at the bent portion, and the force lifts the first upper flaps 18A and 18B. Acts to raise. Therefore, the repulsive force can be reduced by making the angle θ formed by the first folding lines 24, 24 slightly smaller than 45 degrees. Specifically, it is preferable that the angle θ formed by the first folding lines 24 and 24 is 35 degrees or more and less than 45 degrees. Here, when the angle is less than 35 degrees, the second upper flaps 19A, 19B are inclined with respect to the side walls 11A, 11B, and the end walls and the end walls 10A, 10B and the upper ends of the side walls 11A, 11B surrounding the four sides. This is because a large gap is generated between the two. In this embodiment, the angle θ formed by the first folding lines 24, 24 is 42 degrees that is within the above range.

  The bent wall portion 25 has a substantially triangular shape and is bent so as to overlap the outer surfaces of the continuous end walls 10A and 10B. The front edge of the bent wall portion 25 is chamfered in an inverted trapezoidal shape, and a substantially T-shaped locking portion 27 including a base portion 27a and convex portions 27b and 27b is provided at the center of the front end. In addition, an oblong holding hole 28 extending in the lateral direction is provided in the lower center portion of the bent wall portion 25. Furthermore, a second folding line 29 extending in the horizontal direction parallel to the lead rule 23 is provided at the upper edge of the grip hole 28. The second folding line 29 is constituted by a lead ruled line composed of a cutting line and a folding line.

  The overlapping wall portion 26 is continuous with the second upper flaps 19 </ b> A and 19 </ b> B and is bent so as to overlap with both outer surfaces of the bent wall portion 25. The overlapping wall portion 26 is provided with a third fold curve 30 that coincides with the second fold curve 29 in a state of being folded along the first fold curve 24 and superimposed on the fold wall portion 25. ing. In addition, a slit 31 made of a groove having a predetermined width is provided at an intersection between the third folding line 30 and the second folding line 29.

  On the other hand, lower inner flaps 32A and 32B constituting a bottom lid are connected to lower end edges of the end walls 10A and 10B, and lower end edges of the side walls 11A and 11B are similarly arranged below the bottom lid. Side outer flaps 33A and 33B are provided continuously. These lower inner flaps 32A and 32B and lower outer flaps 33A and 33B are in a discontinuous state defined by the slits 34. A folding line 35 is provided at a boundary portion between the lower inner flaps 32A and 32B and the lower outer flaps 33A and 33B and the continuous end walls 10A and 10B and the side walls 11A and 11B.

  The packaging box made of this blank is formed by bending the end wall 10B with respect to the side wall 11B and bending the side wall 11A with respect to the end wall 10A in a state where the adhesive is applied to the continuous adhesive margins 12 and 20. Shipped with the end wall 10B and the side wall 11A, and the first upper flap 18B and the second upper flap 19A attached.

  And when accommodating fruits and vegetables such as cabbage in this packaging box, first, the pair of lower inner flaps 32A, 32B is bent with respect to the end walls 10A, 10B, and then the pair of lower outer flaps 33A, 33B are side walls. Bend against 11A and 11B. Next, the front end edges of the lower outer flaps 33A and 33B that face each other are fixed with an adhesive tape (not shown) or the like.

  Thereby, after accommodating fruits and vegetables from the upper end opening of the packaging box assembled as shown in FIG. 3, it is sealed by the upper flaps 18A, 18B, 19A, 19B. Specifically, the pair of second upper flaps 19A and 19B are bent inward along the lead rule 23 with respect to the side walls 11A and 11B, and the pair of first upper flaps 18A and 18B are formed on the end walls 10A and 10B. On the other hand, it bend | folds outward along the lead rule 23, and also bend | folds so that the overlapping wall part 26 of these 1st upper side flaps 18A and 18B may be superimposed on the upper side of the bending wall part 25 along the 1st folding line 24.

  Here, FIG. 4 shows a state in which the bent wall portion 25 is bent at 90 degrees with respect to the end walls 10A and 10B. In this state, due to the inclination angle (θ) of the first folding curve 24, the overlapping wall portion 26 does not overlap so as to make surface contact with the folding wall portion 25, and the continuous second upper flaps 19A and 19B are They are tilted together.

  Next, the folding wall portion 25 and the overlapping wall portion 26 of the first upper flaps 18 </ b> A and 18 </ b> B are bent along the second folding curve 29 and the third folding curve 30, and the locking portion 27 at the tip of the folding wall portion 25. Are inserted into the locked portions 14 provided on the end walls 10A and 10B to lock them. Thereby, as shown in FIG.1 and FIG.2, the packaging box can maintain the state which sealed the upper end opening by flap 18A, 18B, 19A, 19B.

  Thus, in the packaging box of this embodiment, since the folding wall part 25 and the overlapping wall part 26 are provided with the second folding line 29 and the third folding line 30 extending in the lateral direction, the folding wall part 25 is provided. It is possible to lock the locking portion 27 at the tip of the locking portion to the locked portion 14 of the corresponding end wall 10A, 10B with good workability.

  Further, in this locked state, the overlapping folding wall portion 25 and the overlapping wall portion 26 are bent by the second folding curve 29 and the third folding curve 30, so that the repulsive force can be suppressed and the edge of the locking hole can be suppressed. There is no breakage. Furthermore, in this embodiment, since the slit 31 is provided in the intersection part of the said 3rd fold curve 30 and the 2nd fold curve 29, the repulsive force of the bending wall part 25 and the overlapping wall part 26 is further reduced. Can do. Furthermore, since the angle θ formed by the first folding line 24 that divides the bent wall portion 25 and the overlapping wall portion 26 and the boundary line between the end walls 10A and 10B is slightly smaller than 45 degrees, the overlapping wall The second flap continuous with the portion 26 forms a bending angle of less than 90 degrees with respect to the continuous side wall 11. For this reason, the repulsive force of the bent wall portion 25 and the overlapping wall portion 26 can be further reduced. Moreover, even when cabbages having irregular sizes are accommodated in a state of protruding from the upper ends of the end walls 10A and 10B and the side walls 11A and 11B, they can be sealed so as to be surely pressed inward.

  Furthermore, the sealed packaging box is formed by the second folding curve 29 and the third folding curve 30 because the folding wall 25 is bent and a gap is formed between the end walls 10A and 10B. The entire box can be carried by simply inserting a hand into the hole 28. Further, the upper end corner of the packaging box is in a state where the corrugated cardboard is superimposed in a complicated manner, so that the rigidity is strong, and it is gripped from the inner surface of one of the end walls 10A, 10B to the grip hole 28 of the bent wall portion 25 with one hand. It can also be carried in a state.

  In addition, the packaging box of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the embodiment, the slit 31 formed at the intersection of the third folding line 30 and the second folding line 29 of the first upper flaps 18A and 18B is configured by a groove having a predetermined width. You may comprise by the cutting line which does not have.

It is a perspective view which shows the packaging box which concerns on embodiment of this invention. It is principal part sectional drawing of FIG. It is a perspective view which shows the state which open | released the upper end opening. It is a perspective view which shows one process of sealing an upper end opening. (A) is a top view which shows the blank of a packaging box, (B) is a principal part enlarged plan view of (A).

Explanation of symbols

10A, 10B ... End walls 11A, 11B ... Side walls 14 ... Locked portions 18A, 18B ... First upper flaps 19A, 19B ... Second upper flaps 24 ... First folding curve 25 ... Bending wall portions 26 ... Overlapping wall portions 27 ... Locking portion 28 ... Grip hole 29 ... Second folding curve 30 ... Third folding curve 31 ... Slit

Claims (3)

A pair of end walls and side walls that are continuous in the lateral direction are provided, and a canopy and a bottom cover are connected to the upper and lower ends of the end walls, and the canopy is composed of a flap that is continuous with each other. A pair of first folding curves extending from both sides of the upper end of the corresponding end wall so as to narrow each other are provided on one flap, and these first folding curves form a substantially triangular shape and are superimposed on the outer surface of the continuous end wall. In a packaging box made of corrugated paper, which is divided into a folding wall portion and a pair of second flaps continuous with the side wall and overlapped with an overlapping wall portion overlapping the outer surface of the folding wall portion,
The bent wall portion is provided with a locking portion that is locked to the locked portion provided on the corresponding end wall, is provided with a gripping hole for carrying, and the bent wall portion and the overlapping wall portion are A packaging box having a second folding line and a third folding line extending in the lateral direction.   2. The packaging box according to claim 1, wherein a slit is provided in an intersecting portion of the third folding curve and the second folding curve in the overlapping wall portion.   3. The packaging box according to claim 1, wherein an angle formed between the first folding line and a boundary line of the end wall is slightly smaller than 45 degrees.

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