JP2012254815A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box that prevents an appearance from being damaged, and has a good workability of storing commodities.SOLUTION: The packaging box 1 has a plan view quadrangle shape having end walls 10A, 10B and side walls 11A, 11B which are alternately consecutive in a lateral direction, and is consecutively provided with bottom flaps 16A, 16B, 17A, 17B for closing a bottom surface while being superposed in and out at a lower end thereof. The packaging box includes: consecutively arranging a first cushioning part 24 having a first inner wall part 26 folded into an inner surface side substantially in parallel at upper ends of respective end walls 10A, 10B; consecutively arranging second cushioning parts 33A, 33B having an upper surface part 34 extending toward the adjacent sidewalls 11A, 11B and a second inner wall part 35 folded downward from an inner edge of the upper surface part 34; arranging locking protrusions 29, 37 at a lower end edges of the first and second inner wall parts 26, 35; and arranging locking grooves 19, 20 for locking the locking protrusions 29, 37 at the inner side bottom flaps 16A, 16B which are positioned inside.

Description

  The present invention relates to a packaging box having a quadrangular shape in plan view and capable of forming a polygonal housing portion having a hexagonal shape or more in plan view.

  A packaging box that accommodates a disc-shaped product is formed between the product by placing buffer portions at the four corners of the outer peripheral wall that has a quadrilateral shape in plan view, thereby forming the inside accommodating portion in an octagonal shape in plan view. There are few voids. Moreover, when the buffer part which consists of another member is arrange | positioned in a packaging box, there exists a problem that a number of parts will increase.

  Therefore, in Patent Document 1, an end wall is connected to the opposite edge of the bottom wall located in the center, a side wall is connected to the other opposite edge, and the first and second buffer portions are integrally connected. We provide a packaging box. The 1st buffer part is formed in the center of an end wall and a side wall, and is provided with the 1st inner wall part folded in by these inner surface sides. The second buffer portion is formed on both sides of the first buffer portion in the end wall, and has a trapezoidal upper surface portion extending toward the adjacent side wall, and a second inner wall portion folded downward from the inner edge of the upper surface portion. It has. In addition, the support part arrange | positioned at the inner side (lower side) of the upper surface part of a 2nd buffer part is provided in a row by the both sides of the 1st buffer part.

  However, in the packaging box of Patent Document 1, it is necessary to provide a locking groove for locking the locking protrusion of the first buffer portion on the bottom wall in order to fix the first buffer portion in a folded state. is there. In this case, since the locking groove is visible from the outside of the packaging box, not only the appearance is impaired, but there is a disadvantage that dust enters the inside from the locking groove.

  On the other hand, in patent document 2, it has the end wall and side wall which are alternately continued in the horizontal direction, the 1st buffer part folds inside is provided in the lower end of the side wall, and it is the 2nd folded in at the upper end of the end wall inside. The packaging box which provided the buffer part continuously is provided. In addition, a bottom lid flap that closes the bottom surface is connected to the lower ends of the pair of end walls, and a canopy flap that closes the top surface is connected to the upper ends of the pair of side walls. In this packaging box, the disc-shaped product is disposed between the first and second buffer portions. For this reason, the outer appearance of the packaging box is not impaired because there is no punched groove on the outside.

  However, the packaging box disclosed in Patent Document 2 has a problem in that the accommodation workability of the product is poor because the product is placed on the first buffer portion and fixed so as to be sandwiched by the second buffer portion.

Japanese Utility Model Publication No. 58-98311 JP 2010-47302 A

  It is an object of the present invention to provide a packaging box that prevents the appearance from being damaged and has good product workability.

  In order to solve the above-mentioned problems, the packaging box of the present invention has a rectangular shape in plan view having a pair of end walls and side walls that are alternately continuous in the lateral direction, and is superimposed on the inside and outside of the lower ends of these end walls and side walls. In the packaging box in which the bottom flap for closing the bottom surface is continuously provided, a first buffer portion having a first inner wall portion that is folded substantially parallel to the inner surface side of each end wall is provided at the upper end of each end wall. A second buffer portion having an upper surface portion extending toward the adjacent side wall and a second inner wall portion folded downward from an inner edge of the upper surface portion, and being engaged with lower end edges of the first and second inner wall portions A stop protrusion is provided, and a locking groove for locking the locking protrusion is provided in a portion located inside the bottom flap.

  In the packaging box of the present invention, the first buffer portion that is folded into the inner surface side is provided on the end wall, and the second buffer portion that is folded into the corner with the side wall is provided. The above polygonal accommodation part can be formed. And when accommodating goods in this packaging box, since it only has to arrange | position inside from upper direction, accommodation workability | operativity is not impaired. In addition, the packaging box is closed by a bottom flap continuously provided on each wall, and a locking groove for locking the locking projection of each buffer portion is provided in a portion located inside the packaging box. The stop groove is closed by a bottom flap located outside. Therefore, the appearance is not impaired, and dust can be reliably prevented from entering the inside.

It is a perspective view which shows the packaging box of embodiment which concerns on this invention. It is a perspective view which shows the 1st sealing process of a packaging box. It is a perspective view which shows the 2nd sealing process of a packaging box. It is a perspective view which shows the 3rd sealing process of a packaging box. It is a top view which shows the blank of a packaging box.

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

  1 to 5 show a packaging box 1 according to an embodiment of the present invention. The packaging box 1 has a rectangular shape in plan view having a pair of end walls 10A and 10B and side walls 11A and 11B, and the integrally formed first and second buffer portions 24, 33A and 33B are disposed inside. By doing so, it is possible to form the accommodating portion 2 having an octagonal shape in plan view.

  This packaging box 1 is a continuous blank shown in FIG. 5 by using a well-known cardboard punching device (not shown), which is a well-known corrugated cardboard having corrugated cores disposed between a front liner and a back liner. And a predetermined part is pasted and pasted.

  As shown in FIG. 5, the blank of the packaging box 1 includes a pair of end walls 10A and 10B and side walls 11A and 11B constituting an outer peripheral wall. These are provided so as to be alternately and linearly continuous in the lateral direction. The end walls 10A and 10B and the side walls 11A and 11B of the present embodiment are formed with the same lateral width so as to form a square shape in a plan view in a sealed state. Among these, the margin part 12 for adhering to the end wall 10B located in the right end part is connected to the side edge of the side wall 11A located in the left end part. Further, the boundary part between the side wall 11A and the end wall 10A, the boundary part between the end wall 10A and the side wall 11B, the boundary part between the side wall 11B and the end wall 10B, and the boundary part between the adhesive margin 12 and the side wall 11A are respectively thick. A folding line 13 formed with a ruled line so as to compress is provided so as to extend in the vertical direction. In the glue margin portion 12 of the present embodiment, glue margin pieces 14A and 14B for adhering to a buffer flap 21B and an inner bottom flap 16B described later are provided vertically, and a folding line 15 is formed at the boundary portion. Is provided.

  Inner bottom flaps 16A and 16B are connected to the lower ends of the end walls 10A and 10B, and outer bottom flaps 17A and 17B are connected to the lower ends of the side walls 11A and 11B. A folding line 18 is provided at the boundary between the bottom flaps 16A, 16B, 17A, and 17B and the walls 10A, 10B, 11A, and 11B. The bottom flaps 16A, 16B, 17A, and 17B close the bottom surface surrounded by the end walls 10A and 10B and the side walls 11A and 11B by being bent so as to overlap inside and outside. Specifically, the inner bottom flaps 16A and 16B are bent with respect to the end walls 10A and 10B, and then the outer bottom flaps 17A and 17B are bent with respect to the side walls 11A and 11B. The whole is located inside 17B. In addition, the outer bottom flaps 17A and 17B are formed to have a size such that the leading edges of the outer bottom flaps 17A and 17B collide with each other in a state of being bent with respect to the side walls 11A and 11B.

  The inner bottom flaps 16A and 16B are provided with a rectangular first locking groove 19 by punching so as to be located at the center of the folding line 18. The inner bottom flaps 16A and 16B are provided with a second locking groove 20 by punching so as to extend from the center of both sides toward the approximate center of the folding line 18 at an inclination angle of 45 degrees. In the second locking groove 20, the end portions located on the side edges of the inner bottom flaps 16A and 16B are chamfered so as to form an arc shape.

  Further, buffer flaps 21A and 21B are connected to the upper ends of the end walls 10A and 10B, and top flaps 22A and 22B are connected to the upper ends of the side walls 11A and 11B. A folding line 23 is provided at the boundary between these flaps 21A, 21B, 22A, 22B and the walls 10A, 10B, 11A, 11B. Of these, the top flaps 22A and 22B are formed with dimensions slightly smaller than the dimensions of the opposing side walls 11B and 11A. Further, the top flaps 22A and 22B are formed so that the formation positions of the folding lines 23 are different. Specifically, the folding line 23 of the top flap 22A is formed so as to be positioned on the tip side from the folding line 23 of the top flap 22B. Thus, after the top flap 22B is bent first, the top flap 22A is bent to close the top surface surrounded by the end walls 10A, 10B and the side walls 11A, 11B. Further, the buffer flaps 21A and 21B are provided with a first buffer portion 24 at the center and second buffer portions 33A and 33B on both sides thereof.

  The first buffer portion 24 includes a first upper surface portion 25 that is continuous with the end walls 10A and 10B, a first inner wall portion 26 that is continuous with the first upper surface portion 25, and a folded portion 27 that is continuous with the first inner wall portion 26. And a folding part 28 continuous with the folding part 27. Among them, the first inner wall portion 26 is folded in parallel to the inner surface side of the end walls 10A and 10B, and is locked to the first locking groove 19 of the inner bottom flaps 16A and 16B at the center of the lower end edge. A first locking protrusion 29 is provided. The first locking protrusion 29 includes a pair of first cutting portions 30 and 30 extending from the first inner wall portion 26 to the folding portion 28, and a second cutting portion 31 extending between the tips of the first cutting portions 30 and 30. It is divided by and. And the boundary part of the 1st upper surface part 25 and the 1st inner wall part 26, the boundary part of the 1st inner wall part 26 and the folding | returning part 27 except the area | region of the 1st latching protrusion 29, and the folding | returning part 27 and the folding part 28 A folding line 32 extending in parallel is provided at the boundary portion.

  The second buffer portions 33A and 33B include a second upper surface portion 34 continuous with the end walls 10A and 10B, a second inner wall portion 35 continuous with the inner edge of the second upper surface portion 34, and the second inner wall portion 35 side. And an overlapping portion 36 continuous with the edge. The second upper surface portion 34 has a trapezoidal shape in which the inner edge extends at an inclination angle of 45 degrees toward the adjacent side walls 11A and 11B, and the side edge extends along the inner surface of the adjacent side walls 11A and 11B. The second inner wall portion 35 has a narrow (right) trapezoidal trapezoidal shape that is folded downward, and the lower end edge of the second inner wall portion 35 is engaged with the second engagement groove 20 of the inner bottom flaps 16A and 16B. A protrusion 37 is formed. The overlapping part 36 is bent so as to overlap the side walls 11A and 11B. A bent portion provided with a ruled line so as to compress the thickness at a boundary portion between the second upper surface portion 34 and the second inner wall portion 35 and a boundary portion between the second inner wall portion 35 and the overlapping portion 36; A lead ruler 38 made of a cutting part located on the folding line is provided.

  The blank of the packaging box 1 punched out in this way bends the side wall 11A with respect to the end wall 10A, bends the end wall 10B with respect to the side wall 11B, and combines the overlapping margin portion 12 and the end wall 10B with acetic acid. Glue with an adhesive such as vinyl emulsion. Then, it is delivered to a predetermined manufacturer or the like in this folded state.

  When a product is stored in the packaging box 1, as shown in FIG. 1, first, the end walls 10A and 10B and the side walls 11A and 11B are expanded so as to form a square shape. Thereafter, the inner bottom flaps 16A and 16B are bent with respect to the end walls 10A and 10B, and then the outer bottom flaps 17A and 17B are bent with respect to the side walls 11A and 11B. Then, the tips of the outer bottom flaps 17A and 17B that face each other are fixed by a fixing means such as an adhesive tape.

  Next, as shown in FIG. 2, the folding portion 28, the folding portion 27, the first inner wall portion 26, and the first upper surface portion 25 constituting the first buffer portion 24 are bent along folding lines 23 and 32, respectively. A first locking projection 29 protruding flush with the inner wall portion 26 is inserted into the first locking groove 19 of the inner bottom flaps 16A, 16B and locked.

  Next, as shown in FIG. 3, after the second upper surface portion 34 constituting the second buffer portions 33A and 33B is bent with respect to the end walls 10A and 10B, the second upper surface portion 34 is formed on the second upper surface portion 34 as shown in FIG. On the other hand, the second inner wall portion 35 is bent, and the overlapping portion 36 is bent with respect to the second inner wall portion 35. And the 2nd latching protrusion 37 which is a lower end of the 2nd inner wall part 35 is inserted in the 2nd latching groove 20 of inner side bottom flap 16A, 16B, and is latched.

  As a result, as shown in FIG. 4, an octagonal storage in a plan view surrounded by the side walls 11 </ b> A and 11 </ b> B, the two first buffer parts 24 and the four second buffer parts 33 </ b> A and 33 </ b> B is provided inside the packaging box 1. Part 2 is formed. That is, it is possible to form the accommodating portion 2 having a polygonal shape in plan view by bending one integrally formed blank. And when accommodating goods in this packaging box 1, since it only has to arrange | position inside from upper direction, accommodation workability | operativity is favorable.

  And if a goods are accommodated in the accommodating part 2, after bending the top flap 22B with respect to the side wall 11B, the top flap 22A will be bent with respect to the side wall 11A. And it adheres to the front-end | tip of this top flap 22A, the base part of the top flap 22B, or the side wall 11B with adhesion | attachment means, such as an adhesive tape.

  The packaging box 1 sealed in this way has the locking projections of the buffer portions 24, 33A, 33B on the inner bottom flaps 16A, 16B located on the inner side among the bottom flaps 16A, 16B, 17A, 17B closing the bottom surface. A locking groove 19.20 for locking the portions 29 and 37 is provided. The locking grooves 19 and 20 are closed by outer bottom flaps 17A and 17B located outside. Therefore, the external appearance is not impaired by the locking grooves 19 and 20, and dust can be reliably prevented from entering the inside.

  In addition, the packaging box 1 of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above-described embodiment, the pair of second buffer parts 33A and 33B are provided on both sides of the first buffer part 24. However, the first buffer part 24 is connected to the half region of the end walls 10A and 10B, and the like. It is good also as a structure which provides the accommodating part 2 of planar view hexagonal shape by providing the 1st 2nd buffer part 33 in the area | region of a half. Moreover, the packaging box 1 is good also as a tray shape which does not provide the top flaps 22A and 22B. Furthermore, the packaging box 1 is not limited to a square shape in plan view, and may be a rectangular shape.

  Moreover, in the said embodiment, although the bottom flap was comprised by inner bottom flap 16A, 16B located inside, and outer bottom flap 17A, 17B located outside, what closes a bottom face in the state overlapped inside and outside If it is. That is, after folding the first bottom flap 16A among the four bottom flaps 16A, 16B, 17A, and 17B, the adjacent second bottom flap 17A, third bottom flap 16B, and fourth bottom A so-called windmill locking method may be employed in which the flaps 17B are bent in order, and the half region of the last fourth bottom flap 17B is folded inside the first bottom flap 16A. Further, in a superposed state where the side wall 11A is bent with respect to the end wall 10A and the end wall 10B is bent with respect to the side wall 11B, a part of the bottom flaps 16A and 16B is stuck on the bottom flaps 17A and 17B. The so-called bottom one-touch sealing method may be adopted in which the end flaps 10A, 10B and the side walls 11A, 11B are expanded so as to form a rectangular shape so that the bottom flaps 16A, 16B, 17A, 17B are automatically closed. And also in these, the effect | action and effect similar to the said embodiment can be acquired by providing the latching grooves 19 and 20 in the part located inside bottom flap 16A, 16B, 17A, 17B.

  Furthermore, in the said embodiment, although the 2nd upper surface part 34 was provided so that the inner edge might be extended with the inclination angle of 45 degree | times toward the adjacent side walls 11A and 11B, the inclination angle can be changed as desired. It is. In this case, the inclination of the second locking groove 20 formed in the inner bottom flaps 16A and 16B so as to coincide with the locking protrusion 37 of the second inner wall portion 35 extending downward along the inner edge of the second upper surface portion 34. Change the angle as well.

  Furthermore, in the embodiment, the second locking groove 20 formed in the inner bottom flaps 16A and 16B is formed in a slit shape extending from both side edges of the inner bottom flaps 16A and 16B. You may comprise by the hollow punching groove | channel which carries out. In this case, the locking projection 37 formed on the second inner wall 35 is similarly formed so as to protrude only from a predetermined position of the second inner wall 35.

DESCRIPTION OF SYMBOLS 1 ... Packaging box 2 ... Storage part 10A, 10B ... End wall 11A, 11B ... Side wall 16A, 16B ... Inner bottom flap 17A, 17B ... Outer bottom flap 19 ... First locking groove 20 ... Second locking groove 21A, 21B ... Buffer flap 24 ... First buffer part 25 ... First upper surface part 26 ... First inner wall part 27 ... Folded part 28 ... Folding part 29 ... First locking projections 33A, 33B ... Second buffer part 34 ... Second upper surface Part 35 ... Second inner wall part 36 ... Overlapping part 37 ... Second locking protrusion

Claims (1)

In a packaging box having a rectangular shape in a plan view having a pair of end walls and side walls alternately arranged in the lateral direction, and having bottom flaps continuously closing the end walls and the lower ends of the side walls in a state of being overlapped inside and outside ,
A first buffer portion having a first inner wall portion that is folded substantially parallel to the inner surface side of each end wall is provided at the upper end of each end wall, and an upper surface portion that extends toward the adjacent side wall and the upper surface portion. A second buffer portion having a second inner wall portion that is folded downward from the inner edge of the
A locking projection is provided at the lower end edge of the first and second inner wall portions, and a locking groove for locking the locking projection is provided in a portion located inside the bottom flap. Packaging box.

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