JP2016030640A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box which does not engage with each other and is not misaligned when stacking vertically, is easily held with fingers when picking up an upper box stacked and hardly crushes.SOLUTION: Top inner lids 5, 5 closing a top edge opening and the top outer lids 6, 6 holding down the left and right side boards of the top inner lids when assembling are provided consecutively on the front and rear side boards of a cylindrical box body comprising the facing front and rear side boards 1, 2 and the facing left and right side boards 3, 4, and on the upper ends of the left and right side boards, respectively. The top outer lids form the engaging protrusions by protruding only the mount equivalent to thickness upward from the upper face of the top inner lids when assembling. Besides, the bottom inner lids 7, 7 and the bottom outer lids 8, 8 are provided consecutively on the lower ends of the left and right side boards and of the front and rear side boards, respectively. The left and right side parts of the bottom outer lids are cut so as to correspond to the planar shape of the top outer lids, and the cut-off parts 9, 9 form the engaging recesses. The notches 10 are provided to the top inner lids so that the root sides of the top outer lids do not contact when assembling and a top end side protrudes upward.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging box. In particular, the present invention relates to a packaging box that prevents the upper and lower packaging boxes from shifting when stacked.

  There are many foods or non-foods that are stored in a packaging box. Packaging boxes containing these commodities are often carried in a stacked manner even when transported by truck, delivered from a store to a consumer, or taken home by a consumer. Packaging boxes have been developed that are stacked when transported in this way and are less likely to slip.

  For example, the lower lid member that closes the lower end opening is provided on the front and rear side plates of the box body including front and rear and left and right side plates, and the support pieces that support the left and right side portions of the lower lid member during assembly on the lower ends of the left and right side plates. However, the supporting pieces protrude downward from the lower surface of the lower lid member by an amount corresponding to the thickness when assembled to form an engaging projection, and the inner upper lid is formed on at least one of the upper ends of the left and right side plates. The member is also coupled to the upper ends of the front and rear side plates, and the outer upper lid member is coupled, and the left and right side portions of the outer upper lid member are cut away so as to correspond to the planar shape of the support piece, and this cutout portion forms a recess for engagement. There is a packaging box (Patent Document 1).

  This packaging box does not shift in the horizontal direction because the engaging protrusion and the engaging recess are engaged. For this reason, even if it tries to lift the box on top of each other, it cannot be shifted and cannot be put on its hand, and it cannot be hung up as it is, so it is difficult to lift it.

  Further, if the support piece is tilted so as to overlap the lower lid member during assembly, the lower lid member may be pushed into the box body. Further, since the support piece and the lower lid member are provided on the bottom surface side, there is a concern that this may occur particularly when placed on a flat floor surface, and the packaging box itself may be crushed.

  Known documents are shown below.

Japanese Utility Model Publication No.59-126921

  The present invention has been made in view of the above circumstances, and provides a packaging box that does not disengage when stacked up and down, and that is easy to get fingered when lifting up the stacked box, and is not easily crushed. The challenge is to do.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the invention according to claim 1 closes the upper end opening to the front and rear side plates of a cylindrical box body comprising opposing front and rear side plates and opposing left and right side plates. A top cover and a top cover for holding both left and right sides of the top cover at the time of assembly are connected to the upper ends of the left and right side plates, respectively, and the top cover is placed above the top surface of the top cover at the time of assembly. A protrusion corresponding to the thickness is formed to form an engaging protrusion, and on the other hand, a bottom inner lid is connected to the lower ends of the left and right side plates, and a bottom outer lid is connected to the lower ends of the front and rear side plates. Both side portions are cut out so as to correspond to the planar shape of the top cover, and this cut portion forms a recess for engagement, and the top cover does not hit the base side of the top cover at the time of assembly, and the tip side is upward. A packaging box characterized by a notch that protrudes That.

  According to a second aspect of the present invention, the top lid is provided with at least a part of a push-in preventing portion formed such that its left and right lengths are longer than the left and right lengths of the front and rear side plates. The packaging box according to claim 1.

  The packaging boxes of the present invention do not disengage when they are stacked one on top of the other, and they are easily caught by fingers when lifting the boxes on top of each other and are not easily crushed.

It is explanatory drawing which shows the bottom face of the upper packaging box at the time of stacking an example of the packaging box of this invention, and the top | upper surface of a lower packaging box. It is explanatory drawing of the part which accumulated the example of the packaging box of this invention. It is explanatory drawing which showed the blank of an example of the packaging box of this invention. It is explanatory drawing which showed the method of assembling an example of the packaging box of this invention.

Hereinafter, embodiments for carrying out the present invention will be described.
FIG. 1 is an explanatory view showing a bottom surface of an upper packaging box and a top surface of a lower packaging box when stacking an example of the packaging box of the present invention, and FIG. 2 is a stacked portion of an example of the packaging box of the present invention. It is explanatory drawing of.

  As shown in FIG. 1, the packaging box 100 of this example includes an opposing front side plate 1, rear side plate 2 (not visible in FIG. 1), opposing left side plate 3, right side plate 4 (not visible in FIG. 1). A cylindrical box body is formed.

  The top inner lids 5 and 5 that close the top opening are provided at the upper ends of the front side plate 1 and the rear side plate 2 of the box body, and the left and right sides of the top lids 5 and 5 are provided at the upper ends of the left side plate 3 and the right side plate 4 during assembly. The outer lids 6 and 6 to be pressed are connected to each other, and the top ends of the outer lids 6 and 6 protrude upward from the upper surfaces of the ceiling lids 5 and 5 by an amount corresponding to the thickness to form an engaging projection. Yes.

  On the other hand, bottom inner lids 7 and 7 are connected to the lower ends of the left side plate 3 and the right side plate 4 and are tilted inward to close the lower end opening of the box body, and the lower ends of the front side plate 1 and the rear side plate 2. The bottom outer lids 8, 8 are connected to the bottom inner lid 7, and are tilted inward so as to overlap the bottom inner lids 7, 7. The left and right side portions of the bottom outer lids 8 and 8 are cut away so as to correspond to the planar shape of the top outer lids 6 and 6, and the cutout portions 9 and 9 form engagement recesses.

  Further, the top lids 5 and 5 do not come into contact with the base side of the top lids 6 and 6 at the time of assembly, and the tip side of the top lids 6 and 6 does not enter, that is, the tip side is from the top surface of the top lids 5 and 5. A notch 10 is provided so as to protrude upward by an amount corresponding to the thickness.

  Since the notch 10 is provided in this way, the lower portion of the lower packaging box 100 is placed in the engagement recess formed by the cutout portion 9 of the upper packaging box 100 as shown in the explanatory view of the stacked portion in FIG. When the engaging protrusion formed by the lid 6 is engaged, the base side of the ceiling lid 6 enters the notch 10 provided in the ceiling lid 5, and the bottom inner lid 7 of the upper packaging box 100 and the lower packaging are placed. A gap 11 is formed between the base 100 of the top cover 6 of the box 100.

Since the gap 11 is formed when stacked, the upper packaging box 100 and the lower packaging box 100 can be engaged if a finger is inserted into the gap 11 and lifted when the stacked upper packaging box 100 is taken. The upper packaging box 100 can be taken up from the lower packaging box 100.

  Thus, when stacked up and down, the upper protrusions of the upper packaging box 100 are not engaged with the engaging protrusions of the lower packaging box 100 and the upper upper packaging box 100 is lifted. Sometimes, the finger is easily caught by the gap 11. Further, the notch 10 prevents the ceiling lids 5 and 5 from falling into the box body even when the ceiling lids 6 and 6 are tilted onto the ceiling lids 5 and 5 at the time of assembly.

This packaging box 100 is boxed from a blank 101 shown in FIG.
In the blank 101, the rear side plate 2, the left side plate 3, the front side plate 1, and the right side plate 4 are continuously provided from the left. Moreover, the sticking piece a for forming a box main body in a cylinder shape is provided in the left side of the back side surface board 2. As shown in FIG.

  The top lids 5 and 5 are provided at the upper ends of the rear side plate 2 and the front side plate 1, and the top lids 6 and 6 are provided at the upper ends of the left side plate 3 and the right side plate 4. The top lids 5 and 5 are formed such that the lengths in the vertical direction in the figure are the ends of each when they are boxed.

  Further, the top lids 5 and 5 have at least a part of the push-in preventing portion b formed so that the lateral length is partially longer than the lateral (left and right) lengths of the rear side plate 2 and the front side plate 1. Is provided. Since the push-in preventing portion b is provided, even if the top lids 5 and 5 are pushed from above, it is difficult to fall into the box body, and consequently the packaging box 100 is prevented from buckling. The top lids 5 and 5 are provided with notches 10 on the left and right of the upper end.

  The top lids 6 and 6 are provided to extend upward from the left and right centers of the upper ends of the left side plate 3 and the right side plate 4. In this example, the shape of the outer lids 6 and 6 is substantially rectangular, but is not limited thereto, and may be trapezoidal or inverted trapezoidal.

  The connection part between the top cover 6, 6 and the left side plate 3 or the right side plate 4 only needs to be long enough not to be easily cut. Moreover, since this length affects the shape of the notch 10, it is preferable that it is 1/3 or less of the width | variety of the left side surface board 3 or the right side surface board 4, and 1/5 or more.

  Moreover, since it is important that the vertical length in the figure is stably engaged and the top lids 5 and 5 are firmly held, it is less than one third of the lateral length of the top lids 5 and 5. It is preferable that it is 1/6 or more.

  The notch 10 may be formed in accordance with the shape of the top cover 6, 6 so that the tip part of the top cover 6, 6 does not fall so that the base part of the top cover 6, 6 enters.

  Bottom outer lids 8, 8 are provided at the lower ends of the front side plate 1 and the rear side plate 2, and bottom inner lids 7, 7 are provided at the lower ends of the left side plate 3 and the right side plate 4. The bottom outer lids 8 and 8 are formed such that the lengths in the vertical direction in the figure are substantially abutted at the respective tips when the boxes are made. Further, the left and right side portions of the bottom outer lids 8 and 8 are formed with recessed portions 9 and 9 that are cut out so as to correspond to the planar shape of the top outer lids 6 and 6.

  The bottom inner lids 7 and 7 are formed so that the lateral length is the same as or slightly shorter than the lateral length of the left side plate 3 or the right side plate 4, and the longitudinal length is Are formed so that the tips of the two are substantially butted.

To assemble the packaging box 100, first, the crease between the sticking piece a of the blank 101, the rear side plate 2, the left side plate 3, the front side plate 1 and the right side plate 4 is folded inward, and the right side plate 4 The outer surface side of the sticking piece a is stuck to the right end portion of the inner face side of the inner surface with an adhesive such as hot melt to form a cylindrical box body.

  Next, the bottom inner lids 7 and 7 are tilted inward, the bottom outer lids 8 and 8 are tilted so as to overlap the outer surfaces, and the bottom surfaces are sealed. For sealing, the outer surface of the bottom inner lids 7 and 7 and the inner surface of the bottom outer lids 8 and 8 may be bonded using an adhesive such as hot melt, or bonded to the butted portion of the bottom outer lids 8 and 8. In this way, a sealing tape may be applied from the left side plate 3 to the right side plate 4.

  Next, when the ceiling canopies 5 and 5 are tilted inward, as shown in FIG. 4, the ceiling covers 6 and 6 protrude upward, so that the ceiling covers 6 and 6 are placed on the outer surfaces of the ceiling covers 5 and 5. Defeat them so that they overlap, and seal the top. Sealing may be performed by bonding the outer surface of the top cover 5, 5 and the inner surface of the top cover 6, 6 using an adhesive such as hot melt, or so as to bond to the butted portion of the top cover 5, 5, A sealing tape may be attached to the right side plate 4 from the left side plate 3 so as to suppress the outer lids 6 and 6.

As described above, the packaging box 100 can be boxed.
The boxed packaging boxes 100 are stacked for transportation and storage. At this time, the engaging recesses on the bottom surface of the upper packaging box 100 and the engaging protrusions on the top surface of the lower packaging box 100 are engaged and can be stably stacked.

  When the stacked upper packaging box 100 is taken, since the gap 11 is formed when the upper packaging boxes 100 are stacked, it is possible to easily insert a finger into the gap 11 and lift it. Then, the upper packaging box 100 and the lower packaging box 100 can be disengaged, and the upper packaging box 100 can be taken up from the lower packaging box 100. Further, the notch 10 prevents the top cover 5, 5 from falling into the box body even when the top cover 6, 6 is tilted on the top cover 5, 5 at the time of assembly. It is hard to be crushed.

  Further, the top lids 5 and 5 are provided with a push-in preventing portion b formed such that the lateral length is partially longer than the lateral (left and right) lengths of the rear side plate 2 and the front side plate 1. Therefore, even if the top lids 5 and 5 are pushed from above, it becomes difficult to fall into the box body, and thus the packaging box 100 is prevented from buckling.

DESCRIPTION OF SYMBOLS 100 ... Packaging box 101 ... Blank 1 ... Front side plate 2 ... Rear side plate 3 ... Left side plate 4 ... Right side plate 5, 5 ... Top cover 6, 6 ... Top cover 7, 7 ... Bottom inner cover 8, 8 ... Bottom outer cover 9, 9 ... Cut part 10 ... Notch 11 ... Clearance a ... Sticking piece b ... Push-in prevention part

Claims (2)

  A ceiling canopy that closes an upper end opening is formed on the front and rear side plates of the cylindrical box body that is composed of opposed front and back side plates and left and right side plates that face each other. The top and bottom lids that hold the left and right sides are connected to each other, and the top and bottom lids protrude upward from the top surface of the top and at the time of assembling to form engagement protrusions. The bottom inner lid is connected to the lower end of the front and rear side plates, and the bottom outer lid is connected to the lower ends of the front and rear side plates. The left and right sides of the bottom outer lid are cut away so as to correspond to the planar shape of the ceiling outer lid. The packaging box is characterized in that the portion forms a recess for engagement, and the top lid is notched so that the base side of the top outer lid does not hit at the time of assembly, and a notch is provided so that the tip end protrudes upward.   2. The push-in preventing portion formed in the top cover has a left and right length longer than a left and right length of the front and rear side plates, at least partially. Packaging box.

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