JP2017165431A - Packing box with mis-stacking prevention function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box with a mis-stacking prevention function capable of securely preventing mis-stacking as well as damage to sealability in a packaged state.SOLUTION: A package box with a mis-stacking prevention function comprises: side plates 1 in a pair and end walls 2 in a pair, arranged opposite to each other in the respective pairs to form a square cylindrical shape; a top plate 3 extending from an upper end of the side plate 1, and bent toward a top surface; convex parts 11 and concave parts 12 fitting to each other in a stacked state in the top surface and a bottom surface, respectively. Projections 11a are formed at an upper end of the end wall 2. Belt-like parts 11c are formed at the end part of the top plate 3 along a cut line 11b extending from around a boundary with the side wall 1 to the tip side. The convex part 11 is formed with a belt like part 11c pushed up by the projection 11a. The concave part 12 is formed with an end edge of a bottom plate 4, which overlaps with a front surface side of a bottom flap 7 connected to a lower end of the end wall 2, and which is cut into the inner side.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a packaging box having a function of preventing displacement during stacking.

  Conventionally, as a packaging box of this type, in Patent Document 1 below, as shown in FIG. 9, a side wall 51 and an end wall 52 are opposed to each other to form a rectangular tube shape, and are bent from the upper end of the side wall 51 to the top surface. A so-called A-type packaging box in which the top plate 53 is extended (according to JIS Z 1507 0201) is provided with a convex portion 54 on the top surface and a concave portion 55 on the bottom surface.

  The convex portion 54 of the packaging box is formed by bending a band-shaped portion between two cut lines inserted in the ridge portion of the side wall 51 and the top plate 53 into a mountain shape along two fold lines on the top plate 53 side. The concave portion 55 is a cut-out hole corresponding to the convex portion 54.

  Further, in Patent Document 2 below, as shown in FIG. 10, in a so-called A-type packaging box, a tongue-like shape protruding upward as the top plate 53 is bent by cutting into the top plate 53 from the side wall 51. The convex part 56 is formed, and the concave part 57 having a shape corresponding to the convex part 54 is formed by cutting from the lower part of the side wall 51 to the bottom face.

  The packaging boxes described in the above Patent Documents 1 and 2 are in a stacking state in which a plurality of the packaging boxes are stacked during transportation or storage, and the convex portions 54 and 56 of the lower packaging box and the concave portions 55 and 57 of the upper packaging box. This is intended to prevent the collapse of the load due to the load shift.

JP 2004-250098 A Japanese Utility Model Publication No. 55-153333

  However, in the packaging box as described above, the convex portions 54 and 56 are liable to be crushed during handling or stacking, and there is a case where the effect of preventing the misalignment may not be obtained. There was a problem that the hole was opened and the hermeticity in the packaged state was insufficient.

  Accordingly, an object of the present invention is to provide a packaging box with a function of preventing product misalignment, which can reliably prevent product misalignment and does not impair the sealing performance in the packaged state.

  In order to solve the above-mentioned problems, the present invention has a rectangular tube shape in which the side wall and the end wall face each other, and a top plate that is bent from the upper end of the side wall to the top surface is extended to the top surface and the bottom surface, respectively. In the packaging box with a stacking-prevention function having a convex portion and a concave portion that fit together in a stacking state, a protrusion is formed at the upper end of the end wall, and from the vicinity of the boundary with the side wall to the front end side at the end portion of the top plate A band-shaped portion is formed along the extending cut line, and the convex portion is formed by pushing the band-shaped portion up by the protrusion, and the concave portion overlaps the surface side of the bottom flap connected to the lower end of the end wall. It was assumed that the edge of the bottom plate was cut inward.

  Further, the end wall has a superposed plate folded on the inner surface side, and a projection for pushing up the belt-like portion of the top plate is formed on the upper end of the superposed plate.

  Then, as a specific overall shape, the pair of side walls are connected to both ends of the bottom plate, and the extension from the opposing side walls is overlapped to form a tray with a lid on which the end walls are formed. It was.

  Alternatively, the pair of side walls and end walls are connected in the circumferential direction, the bottom plate is extended from the lower end of the opposing side walls, and the bottoms of the bottom plates are butted together to form a bottom surface. It was.

  In the packaging box with a function of preventing misloading according to the present invention, since the belt-like portion is pushed up by the protrusion rising from the upper end of the end wall to form the convex portion of the top surface, even if it is handled rough in the physical distribution process, the convex portion In the stacking state, the convex part of the lower packaging box and the concave part of the upper packaging box are securely fitted to prevent the product from shifting and prevent the collapse of the load. .

  In addition, since the concave portion of the bottom surface is formed long along the lower end of the end wall, when stacking, the positions of the lower and upper packaging boxes are slightly shifted in the width direction of the end wall, or the width dimension is Even when different packaging boxes are stacked, the convex portion of the lower packaging box and the concave portion of the upper packaging box are fitted to each other, and an effect of preventing a stacking error can be obtained.

  Moreover, since the recessed part is formed in the part which the bottom flap of a baseplate overlaps, the hole for preventing a load shift at the time of stacking does not open in a bottom face, and the sealing performance in a packaging state is not impaired.

The figure which shows the blank of the packaging box which concerns on 1st Embodiment of this invention Perspective view showing the assembly process The perspective view which shows an assembly state same as the above. Perspective view showing the stacking process The figure which shows the blank of the packaging box which concerns on 2nd Embodiment of this invention Perspective view showing the assembly process The perspective view which shows an assembly state same as the above. Perspective view showing the stacking process The figure which shows the stacking process of the packaging box of patent document 1 The figure which shows the stacking state of the packaging box of patent document 2

  First, a first embodiment of the present invention will be described with reference to the accompanying drawings. This packaging box is in the form of a tray with a lid formed from a cardboard blank as shown in FIG.

  In this blank, out of a pair of side walls 1 arranged opposite to each other in the corrugated cardboard direction, end plates 2a are connected to both sides of one side wall 1, and a top plate 3 is provided at the upper end when the pair of side walls 1 are assembled. The lower ends of these side walls 1 when assembled are connected via the bottom plate 4.

  In the pair of end plates 2a, a superposed plate 6 is connected to the middle portion of the upper end during assembly via a frame portion 5, and a bottom flap 7 is connected to the lower end. In addition, a superposition plate 8 is continuously provided on both sides of the other side wall 1, and a superposition plate 10 is continuously provided on the upper end of the superposition of the superposition plate 8 via a frame portion 9 positioned at an intermediate portion.

  In this blank, the end plate 2 a, the overlapping plates 6, 8, 10 and the frame portions 5, 9 are portions constituting the end wall 2.

  Further, projections 11a projecting on both sides of the frame portion 5 are formed on the edge that becomes the upper end when the blank overlapping plate 6 is assembled, and the tip of the projection 11a has a bulging arc shape. At both ends of the top plate 3, a band-like portion 11 c is formed along a cut 11 b extending from the vicinity of the boundary with the side wall 1 to the tip side, and the cut 11 b is cut to the side wall 1.

  Protrusions 11a projecting on both sides of the frame portion 9 are also formed on the edge of the overlapping plate 10 near the overlapping plate 8 by cutting into the overlapping plate 8, and the tip of the protrusion 11a has a bulging arc shape.

  Both end edges of the bottom plate 4 are cut so as to be located inside the lower end of the end wall 2 at the time of assembly on both sides of the side wall 1 to form a recess 12.

  Two locking projections 13 are provided at the lower end portions on both sides at the lower end when the overlapping plate 6 is assembled, and three locking projections 13 are respectively provided at the lower ends when the overlapping plates 8 and 10 are assembled. It is provided near both ends and at the center.

  At the base of the bottom flap 7, three locking holes 14 are provided at both ends and at the center along the boundary with the end plate 2 a. Further, the front end of one bottom flap 7 is provided with a widening engagement protrusion 15, and the front end of the other bottom flap 7 is provided with an engagement recess 16 that engages with the engagement protrusion 15 during assembly.

  Further, an oblong handle hole 17 is provided at the center in the width direction of the end plate 2a and the overlapping plate 8 so as to overlap at a position spaced downward from the upper end during assembly.

  As shown in FIG. 2, to assemble the blank and wrap the article as described above, one side wall 1 is erected, the bottom flap 7 is overlaid on the upper surface of the bottom plate 4, the meshing protrusion 15, the meshing recess 16, Bite. Further, the end plate 2a is bent from one side wall 1, the other side wall 1 is erected, the frame portion 9 is used as a hinge, and the overlapping plates 8 and 10 are sequentially overlapped on the inner side of the end plate 2a.

  Next, the frame portion 5 is used as a hinge, the overlapping plate 6 is bent inward and downward, and the protrusion 11a is raised upward, and the overlapping plates 8 and 10 are held between the end plate 2a and the overlapping plate 6. Thus, the end wall 2 having a multiple structure is formed, and the locking protrusion 13 and the locking hole 14 are engaged.

  In this state, the articles are stored in the box, and as shown in FIG. 3, when the top plate 3 is bent from the opposite side wall 1 to the top surface side, the overlapping plates 6, which stand vertically on both sides of the top surface, The projection 11a is pushed up by the ten projections 11a to form the projection 11.

  Finally, the ends of the pair of top plates 3 are butted against each other, and the both ends of the top plate 3 are supported on the upper surface of the frame portion 5, and then the top of the top plate 3 is hooked to the top of the end plates 2 a on both sides. When the sealing tape is applied, the packaging operation is completed.

  When stacking a plurality of packaging boxes assembled in this way when transporting or storing articles, as shown in FIG. 4, the convex portion 11 on the top surface of the packaging box on the lower side is provided on the upper stage. It is made to fit in the recessed part 12 of the bottom face of the packaging box used as the side.

  In the packaging box as described above, the band-like portion 11c is pushed up by the projection 11a of the overlapping plates 6 and 10 that stand vertically from the upper end of the end wall 2, and the convex portion 11 on the top surface is formed. Even if it is handled roughly, the convex portion 11 is not easily crushed, and in the stacking state, the convex portion 11 of the lower packaging box and the concave portion 12 of the upper packaging box are securely fitted to prevent misalignment. The

  Further, since the recess 12 on the bottom surface is formed long along the lower end of the end wall 2, when stacking, when the positions of the lower and upper packaging boxes are slightly shifted in the width direction of the end wall 2, Even when packaging boxes having different dimensions are stacked, the convex portion 11 of the lower packaging box and the concave portion 12 of the upper packaging box are fitted, and an effect of preventing a stacking error can be obtained.

  Moreover, since the recessed part 12 is formed in the part which the bottom flap 7 of the baseplate 4 overlaps, the hole for preventing a load shift at the time of stacking does not open in a bottom face, and the sealing performance in a packaging state is impaired. There is no.

  In this embodiment, the end plate 2a is continuously provided on both sides of one side wall 1 and the overlapping plate 8 is continuously provided on both sides of the other side wall 1, but one side of the pair of side walls 1 is illustrated. Further, the end plates 2a and the superposed plates 8 may be alternately provided on the other side.

  Moreover, although the thing which the superposition | polymerization board 8 and 10 hold | maintained by the superposition | polymerization board 6 exists was illustrated, when the articles | goods to wrap are not so heavy and the load which acts on the lower packaging box in a stacking state does not become so large May omit the superposition plates 8 and 10.

  Next, 2nd Embodiment of this invention is described based on an accompanying drawing. This packaging box is of the so-called A type formed from a cardboard blank as shown in FIG.

  In this blank, the step of the corrugated cardboard is directed in the vertical direction, the pair of side walls 1 and the end plates 2a are alternately connected in the horizontal direction, and the passage piece 18 is connected to the outer end of one side wall 1. . Further, a top plate 3 is connected to the upper ends of the pair of side walls 1, and a bottom plate 4 is connected to the lower ends. The pair of end plates 2a are overlapped via a frame portion 5 at the middle portion of the upper end during assembly. 6 is continuously provided, and a bottom flap 7 is continuously provided at the lower end.

  In this blank, the end plate 2 a, the overlapping plate 6, and the frame portion 5 are portions constituting the end wall 2.

  Further, projections 11a projecting on both sides of the frame portion 5 are formed on the upper end of the blank end plate 2a and the upper end of the overlapping plate 6, and the tip of the projection 11a has a bulging arc shape. ing. At both ends of the top plate 3, a band-like portion 11 c is formed along a cut 11 b extending from the vicinity of the boundary with the side wall 1 to the tip side, and the cut 11 b is cut to the side wall 1.

  Both end edges of the bottom plate 4 are cut so as to be located inside the lower end of the end wall 2 at the time of assembly on both sides of the side wall 1 to form a recess 12.

  When manufacturing a packaging box from the blank as described above, each pair of side walls 1 and end plate 2a is folded at the border line of the diagonal position, and the passage piece 18 is attached to the opposite end plate 2a. Attach it to a flat folded state.

  When packaging the article, as shown in FIG. 6, after each pair of side walls 1 and end plate 2a is folded in the circumferential direction so as to form a square cylinder, the bottom flap 7 and the bottom plate 4 are sequentially folded, The bottom plate 4 is overlaid on the surface side of the flap 7, and the bottom plate 4 and the bottom flap 7 are fixed with a tape or an adhesive in a state where the tips of the bottom plates 4 are butted together, and the bottom surface is closed.

  Further, the frame portion 5 is used as a hinge, the overlapping plate 6 is bent inward and downward, and accordingly, the protrusion 11a is raised upward, and the overlapping end wall 2 is overlapped with the overlapping plate 6 on the inner surface side of the end plate 2a. Form.

  Then, in this state, the articles are stored in the box, and as shown in FIG. 7, when the top plate 3 is bent from the opposite side wall 1 to the top surface side, the overlapping plate 6 standing vertically on both sides of the top surface The protrusion 11a pushes up the belt-like portion 11c to form the convex portion 11.

  Finally, the ends of the pair of top plates 3 are butted against each other, and the both ends of the top plate 3 are supported on the upper surface of the frame portion 5, and then the top of the top plate 3 is hooked to the top of the end plates 2 a on both sides. When the sealing tape is applied, the packaging operation is completed.

  When stacking a plurality of packaging boxes assembled in this way when transporting or storing articles, as shown in FIG. It is made to fit in the recessed part 12 of the bottom face of the packaging box used as the side.

  Even in the packaging box as described above, the band-shaped portion 11c is pushed up by the projection 11a of the overlapping plate 6 that stands vertically from the upper end of the end wall 2 to form the convex portion 11 on the top surface. Even if it is handled, the convex portion 11 is not easily crushed, and in a stacking state, the convex portion 11 of the lower packaging box and the concave portion 12 of the upper packaging box are securely fitted, and a product shift is prevented.

  Further, since the recess 12 on the bottom surface is formed long along the lower end of the end wall 2, when stacking, when the positions of the lower and upper packaging boxes are slightly shifted in the width direction of the end wall 2, Even when packaging boxes having different dimensions are stacked, the convex portion 11 of the lower packaging box and the concave portion 12 of the upper packaging box are fitted, and an effect of preventing a stacking error can be obtained.

  Moreover, since the recessed part 12 is formed in the part which the bottom flap 7 of the baseplate 4 overlaps, the hole for preventing a load shift at the time of stacking does not open in a bottom face, and the sealing performance in a packaging state is impaired. There is no.

  In this embodiment, the overlap plate 6 is present on the end wall 2 and the protrusion 11a is provided on the end plate 2a and the overlap plate 6. However, the top plate 3 covers the protrusion 11a of the end plate 2a. In this case, the protrusion 11a of the overlapping plate 6 can be omitted. Further, when the article to be packaged is not very heavy and the load acting on the lower packaging box in the stacking state is not so large, the frame portion 5 and the superposed plate 6 may be omitted.

DESCRIPTION OF SYMBOLS 1 Side wall 2 End wall 2a End plate 3 Top plate 4 Bottom plate 5 Frame part 6 Superposition board 7 Flap 8 Superposition board 9 Frame part 10 Superposition board 11 Convex part 11a Protrusion 11b Incision 11c Strip-like part 12 Concave part 13 Engaging protrusion Hole 15 Engagement protrusion 16 Engagement recess 17 Handle hole 18 Passage piece

Claims (4)

The side wall (1) and the end wall (2) are opposed to each other to form a rectangular tube shape, and a top plate (3) that is bent from the upper end of the side wall (1) to the top surface is extended to the top surface and the bottom surface, respectively. In a packaging box with a function of preventing misloading provided with a convex portion (11) and a concave portion (12) that fit together in a stacking state,
A protrusion (11a) is formed on the upper end of the end wall (2), and a strip-shaped portion along the cut (11b) extending from the vicinity of the boundary with the side wall (1) to the tip end of the top plate (3) ( 11c) is formed, and the convex portion (11) is formed by pushing up the band-shaped portion (11c) by the protrusion (11a),
The concave portion (12) is characterized in that the edge of the bottom plate (4) overlapping the surface side of the bottom flap (7) connected to the lower end of the end wall (2) is formed by cutting inward. A packaging box with anti-loading function.   The end wall (2) has a superposed plate (6) that is folded on the inner surface side, and a projection (11a) that pushes up the strip (11c) of the top plate (3) on the upper end of the superposed plate (6). The packaging box with the function of preventing product misalignment according to claim 1, wherein:   The pair of side walls (1) are connected to both ends of the bottom plate (4), and the end walls (2) are formed by overlapping extensions from the opposite side walls (1). The packaging box with a function of preventing product misalignment according to claim 1 or 2.   Each of the pair of side walls (1) and the end wall (2) are continuously provided in the circumferential direction, the bottom plate (4) is extended from the lower end of the opposing side wall (1), and the tips of the bottom plate (4) protrude from each other. The packaging box with a function of preventing product misalignment according to claim 1 or 2, wherein a bottom surface is formed by combining them.

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