JP2012140174A - Connected cardboard box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pile up cardboard boxes in small sizes into a stack in a stable state.SOLUTION: In each cardboard box, an upper and lower sides of an end wall 1 are provided continuously with inner flaps 4 and 5, an upper and lower sides of each of flanks 2 are provided continuously with outer flaps 6 and 7, an engaging piece 8 is extended from the upper side of the end wall 1, the lower outer flap 7 is notched to create an engaging recess 9, the outer flaps 6 and 7 are superposed on and fixed to the inner flaps 4 and 5, and the engaging piece 8 is stuck to the topside of the outer flap 6 to prevent a shear in stacking by the engagement between the engaging piece 8 and the engaging recess 9 in stacking. Two or more such cardboard boxes B are connected with one another so that the flanks 2 may contact with each other, and the engaging piece 8 and the engaging recess 9 are arranged, being put aside to each of the flanks 2 serving as an abutting face each of the fellow cardboard boxes B, whereby the engaging piece 8 and the engaging recess 9 of adjacent cardboard boxes B function in a body while the cardboard boxes B are one united with each other.

Description

  The present invention relates to a corrugated cardboard box in which the function of preventing misloading is effectively exhibited in a connected state.

  As a corrugated cardboard box having a function of preventing misloading, the following Patent Document 1 discloses that inner flaps 53 and 54 are provided on the upper and lower sides of the end wall 51 and the upper and lower sides of the side wall 52 as shown in FIGS. The outer flaps 55 and 56 are connected to each other, and the center portion of the upper end of the upper inner flap 53 is cut into a V shape to form an engagement piece 57 and the lower end corner of the lower outer flap 56 is cut diagonally. In this example, an engagement recess 58 is formed.

  When assembling this cardboard box and packing an article, the lower inner flap 54 and the outer flap 56 are sequentially folded, and the adhesive tape T is applied from the abutting portion of the outer flap 56 to the lower portion of the end wall 51 to attach the bottom. After assembling and storing the articles, the upper inner flap 53 and the outer flap 55 are sequentially folded, the engagement piece 57 is folded and overlapped on the surface of the upper outer flap 55, and the end of the outer flap 55 from the butt portion Adhesive tape T is applied to the top of the wall 51 and sealed.

  At the time of stacking, the stacking method is called bar stacking in which the directions of the upper and lower cardboard boxes are aligned, and the engaging recess 57 of the upper cardboard box is engaged with the engaging piece 57 of the lower cardboard box, Prevent misloading.

  By preventing the stacking error in this way, the advantage of bar stacking that can effectively demonstrate the pressure resistance of the cardboard box is utilized, and deformation due to the load of the lower cardboard box and collapse of the stacked cardboard box are prevented. Can do.

Japanese Utility Model Publication No. 55-110421

  However, when the size of the cardboard box is small and the number of stages and the number of stacked stages are large, in the configuration described in Patent Document 1, the engagement pieces 57 and the engagement recesses 58 are arranged one by one for each cardboard box. It takes time to engage, and there is a possibility that the stacked state will become unstable by stacking without the upper and lower corrugated cardboard boxes being securely engaged.

  In view of this, an object of the present invention is to make it possible to stack small-sized cardboard boxes in a stable state.

  In order to solve the above problems, in the present invention, an inner flap is connected to the upper side and the lower side of the end wall, an outer flap is connected to the upper side and the lower side of the side wall, and an engagement piece extends from the upper side of the end wall. The lower outer flap is cut out to form an engagement recess, the outer flap is overlapped and fixed to the inner flap, and the engagement piece is attached to the upper surface of the outer flap. In a corrugated cardboard box that prevents misalignment by engagement with a plurality of cardboard boxes, a plurality of corrugated cardboard boxes are connected so that the side walls are in contact with each other, and the engaging pieces and the engaging recesses are side walls that serve as contact surfaces between the corrugated cardboard boxes. The engaging pieces and the engaging recesses of the adjacent cardboard boxes function as a unit with the cardboard boxes connected to each other.

  In addition, an end cover piece projects from the side edge of the lower inner flap that is the inside of the engagement recess, and the cut edge at the lower end of the side wall facing the engagement recess is covered with the end cover piece of the corrugated cardboard box to be connected. It was made to be.

  In the cardboard boxes according to the present invention, when stacked in a connected state, the upper and lower cardboard boxes can be engaged with the engaging pieces of the lower cardboard boxes without engaging the upper and lower cardboard boxes individually one by one. Since the engaging concave portions of the connected cardboard boxes can be easily engaged, even if the cardboard box is small in size and has a large number of arrangements or steps, it can be stacked in a stable state.

The figure which shows the blank of the connection cardboard box which concerns on this invention Perspective view showing the assembly process The perspective view which shows an assembly state same as the above. The perspective view which shows a connection state same as the above. The perspective view which shows a bar stacking state same as the above Partial enlarged bottom view of the engaging recess as above A top perspective view of a conventional cardboard box with a function of preventing loading error Lower perspective view

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, in the blank of this cardboard box, the end wall 1 of the width surface and the side wall 2 of the long surface are alternately arranged side by side in the horizontal direction, and the passage is connected to the outer end of one end wall 1. The pieces 3 are continuously provided. Inner flaps 4 and 5 are connected to the upper and lower sides of the end wall 1, respectively, and outer flaps 6 and 7 are connected to the upper and lower sides of the side wall 2, respectively.

  Chamfered portions 2a are provided on both sides of one side wall 2 located on the opposite side of the passage piece 3, and the outer flaps 6 and 7 connected to the portion sandwiched between the chamfered portions 2a of the side walls 2 are The corner corresponding to the chamfer 2a is cut obliquely to form an irregular hexagon.

  When the cardboard boxes are connected to each other, a tapered engagement piece 8 is continuously provided at the upper ends of the pair of end walls 1 toward the other side wall 2 serving as a contact surface. The crease line at the base end of the engagement piece 8 is shifted upward by the thickness of the corrugated cardboard from the crease line at the base end of the inner flaps 4 arranged side by side.

  The outer flap 7 connected to the lower end of the side wall 2 adjacent to the engagement piece 8 is formed with an engagement recess 9 which is cut out from the boundary with the side wall 2 and is slightly larger than the engagement piece 8.

  At the side edges of the pair of lower inner flaps 5 that are inside the engagement recess 9 during assembly, end cover pieces 10 are provided so as to be staggered.

  A tear band 11 made of a cut tape or the like is provided in the lower part of each pair of end walls 1 and side walls 2, and the tear band 11 includes a portion sandwiched between the chamfered portions 2 a and other portions. The part can be cut out independently.

  One side wall 2 having the chamfered portion 2a is provided with a score line 12a extending upward from the tear band 11 along the inner side of the chamfered portion 2a, and the outer flap 6 connected to the side wall 2 has a score line. A continuous cut line 12b is provided at 12a.

  When assembling such a blank, as shown in FIG. 2, the end wall 1, the side wall 2 and the chamfered portion 2a are bent into a hexagonal cylindrical shape, and the passage piece 3 is formed on the inner surface of the opposite chamfered portion 2a. Adhering, the lower inner flap 5 and the outer flap 7 are sequentially folded, and these are fixed with an adhesive such as hot melt or an adhesive tape, and the bottom surface is closed.

  Then, after the product is stored in the cardboard box B, the upper inner flap 4 and the outer flap 6 are sequentially folded while the engaging piece 8 is standing.

  Thereafter, as shown in FIG. 3, the upper inner flap 4 and the outer flap 6 are fixed with an adhesive such as hot melt or an adhesive tape, the top surface is closed, and the engagement piece 8 is attached to the upper surface of the outer flap 6. Affix to the adhesive.

  In the sealed cardboard box B, the engagement piece 8 protrudes from the upper outer flap 6 through a step corresponding to the thickness of the cardboard on the top surface side, and the bottom side of the cardboard box B from the lower outer flap 7. The inside of the engagement recess 9 is depressed through a step corresponding to the thickness.

  Since the corrugated box B assembled as described above has a small width and is unstable by itself, as shown in FIG. 4, the two corrugated boxes B are brought into contact with the side walls 2 without the chamfered portions 2a. Touching and stacking in a state of being connected by banding or adhesive.

  In such a connected state, the engaging pieces 8 of the adjacent cardboard boxes B face each other, and the engaging concave portions 9 communicate with each other, and these effectively function as one engaging piece 8 and the engaging concave portion 9. .

  For this reason, as shown in FIG. 5, when stacking the bars, the upper and lower cardboard boxes B can be engaged with the engaging pieces 8 of the upper cardboard boxes B without having to engage the upper and lower cardboard boxes B one by one. Since the engaging concave portions 9 of the connected cardboard boxes B can be easily engaged, even if the cardboard box B is small in size and has a large number of arrangements or steps, it can be stacked in a stable state. .

  Further, as shown in FIG. 6, when viewed from the bottom side, the end covering piece 10 of the cardboard box B to be coupled covers the cut edges at the lower ends of the side walls 2 facing the engaging recess 9, so that the engaging recess There is no impression that a gap is opened inside 9.

  In addition, in this cardboard box B, in the state shown in FIG. 3 or FIG. 4, when the portion sandwiched between the chamfered portions 2 a of the tear strip 11 is pulled and cut along the cut lines 12 a and 12 b, It can be opened over a portion of the product, and the stored goods can be shown and displayed, and can be stacked in that state.

  Furthermore, only the cardboard box B, which is the uppermost stage in the stacked state, is exposed so that the product can be seen from any direction by cutting the tear strip 11 over the entire circumference and removing the upper part thereof to form a tray state. Can be displayed.

  In the above embodiment, the cardboard boxes B whose peripheral walls are hexagonal cylinders are connected back to back. However, when two rectangular cardboard boxes are connected back to back, or three or more cardboard boxes are connected. In this case, it is possible to stack the bars in a stable state by adopting the same configuration.

B Cardboard box 1 End wall 2 Side wall 2a Chamfer 3 Passage piece 4, 5 Inner flap 6, 7 Outer flap 8 Engagement piece 9 Engagement recess 10 End covering piece 11 Tear strips 12a, 12b Cut line

Claims (2)

  Inner flaps (4, 5) are connected to the upper and lower sides of the end wall (1), and outer flaps (6, 7) are connected to the upper and lower sides of the side wall (2). Extend the joint piece (8) and cut out the lower outer flap (7) to form the engaging recess (9), and the outer flap (6,7) is superimposed on the inner flap (4,5) Corrugated cardboard that adheres and attaches the engagement piece (8) to the upper surface of the outer flap (6), and prevents stacking error by engaging the engagement piece (8) and the engagement recess (9) when stacked. In the box, a plurality of cardboard boxes (B) are connected so that the side walls (2) are in contact with each other, and the engagement pieces (8) and the engagement recesses (9) are contacted between the cardboard boxes (B). By disposing them close to the side wall (2) that becomes the surface, the engagement pieces (8) and the engagement recesses (9) of the adjacent cardboard boxes (B) are integrated in a state where the cardboard boxes (B) are connected. A connected cardboard box characterized by functioning.   An end cover piece (10) protrudes from the side edge of the lower inner flap (5), which is the inside of the engagement recess (9), and is engaged by the end cover piece (10) of the cardboard box (B) to be connected. The connected cardboard box according to claim 1, wherein the cut edges at the lower ends of the side walls (2) facing the mating recess (9) are covered with each other.

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