JPH0245133Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a box-shaped packaging container made of cardboard, and in particular,
A bending protrusion is provided inside the box body that accommodates the articles, and this bending protrusion prevents the packaging containers from sagging when stacked, provides cushioning properties for the housed articles, and further protects the housed articles. It was designed to also function as a dividing wall.

[Prior Art] Conventionally, a packaging container is formed by assembling horizontally connected side walls by bending each other to form a box-like body of a desired height, and the adjacent corners of the continuous side walls are bent inside. For example, those described in Japanese Utility Model Application Publications No. 55-27691 and No. 58-88320 are known.
However, in the former publication, the folded part is folded so as to contact the inside of the side wall to serve as a reinforcing part for reinforcing the side wall. This space is formed as a buffer section so as to have a buffering function.

In this way, the above-mentioned conventional products are provided with a bent part for reinforcing the side wall of the packaging container or for cushioning inside the packaging container, and folding this bent part so as to contact the side wall, or making the inside hollow. Since it is formed by bending it into a shape, the former can reinforce the side walls, and the latter can cushion the stored items, but it does not satisfy both the reinforcement and cushioning functions.
In addition, there were no configurations in which the bent portions functioned as partitions.

Furthermore, in Utility Model Application Publication No. 53-135234, in a corrugated box, the sleeves for forming supports that are connected to the side ends of the box body are bent to form supports at the corners of the bottom of the box, and the flaps are attached to the outside of the supports. Perforations for opening the box are provided in the body of the box and/or the top of the box to create a window for display and ejection if necessary, as part of the flap. In such a corrugated cardboard box, one side wall of the support column formed by bending the sleeve comes into contact with the inner wall of the box, so the side wall of the box itself is reinforced. However, once the support column is erected and the cardboard is assembled, While display/exit windows can be formed along the perforations, the box assembly is fixed. For this reason, it is not possible to fold the cardboard boxes again into a flat plate, stack a plurality of them, and transport them in large quantities efficiently.

In addition, in JP-A No. 51-59583, the box member (corner part)
A reinforcing portion is integrally formed on the reinforcing portion, and reinforcing materials are arranged in the longitudinal direction on this reinforcing portion to form a packaging box. However, the reinforcing material of the packaging box is integrally fixed to the reinforcing portions formed at the corners of the box, thereby firmly fixing each side wall of the packaging box. For this reason, once the side walls are joined to form a packaging box, as in the conventional example, the side walls cannot be folded back to their original shape to form a flat plate, and a plurality of the side walls cannot be stacked and transported efficiently in large quantities. .

[Purpose of the invention] The present invention forms a protrusion that is bent and overlapped at an adjacent corner of a side wall that forms the main body of a packaging container.
This protrusion has the ability to withstand pressure when packaging containers are stacked, has cushioning properties for stored items, and functions as a partition wall to partition stored items to prevent confusion, congestion, movement, damage, etc. The object of the present invention is to fold a packaging container formed by combining side walls into a flat plate again after use, and to stack a plurality of packaging containers so that they can be efficiently transported in large quantities.

[Structure of the present invention] Cardboard is folded to extend the front, rear, left and right side walls 3 to 6 on the four sides of the rectangular bottom 1 via fold lines 2a to 2d, and furthermore, the rear side wall 4 is extended via fold lines 7. Lid part 8
are installed in series, and there are fold lines 1 at both left and right ends of the front and rear side walls 3 and 4.
A bending protrusion 11 that is folded in half at 0 is extended, and a glue margin 13 is extended at the tip of each bending protrusion 11 via a folding line 12, and the front wall 3 is symmetrically inclined. The broken lines 14, 14 are provided, and the left and right side walls 5,
6, a bent piece 16 is extended through the bent line 15, and an inclined bent line 17,1 that reaches this bent piece 16 is provided.
7 are provided in a left-right symmetrical manner, and an insertion piece 19 is extended from the tip of the lid portion 8 via a fold line 18.

[Function] The bent protrusions protruding inside the corners of each side wall block the load when packaging containers are stacked, thereby preventing deformation such as sagging of the packaging containers. In addition, the stored items are stored in the air space formed inside each side wall by each bent protrusion.
buffered by Furthermore, the stored articles are partitioned by the folding protrusions to prevent movement.

In addition, the assembled packaging container can be folded flat by folding along the inclined fold line to reduce its bulk, and can be folded freely, improving the efficiency of handling such as transportation and storage.

[Example] Fig. 1 shows a developed view of a packaging container formed by folding cardboard.
Front, rear, left and right side walls 3 to 6 are extended on the four sides of the frame via fold lines 2 a to 2 d, and the rear side wall 4 is further provided with fold lines 2 .
A lid part 8 is connected via a broken line 7 parallel to b.

There are fold lines 2c and 2d at both left and right ends of the front and rear side walls 3 and 4.
A folding line 9 is provided on each extension line, and a folding protrusion 11 that is folded in half at a folding line 10 is provided outward from each folding line 9, and a folding line 12 is provided at the tip of each folding protrusion 11. The glue allowance 13 is extended.
In addition, on the front side wall 3, there are symmetrical inclined fold lines 14,
There are 14.

Furthermore, a bent piece 16 is provided on the left and right side walls 5, 6 extending through a folded line 15 parallel to the folded lines 2c, 2d, and an inclined folded line 17 that reaches this bent piece 16,
17 are provided symmetrically. Further, an insertion piece 19 is extended from the tip of the lid portion 8 via a fold line 18.

To assemble this packaging container, as shown in FIG.
, and paste the glue 13 on the inner surfaces of the left and right side walls 5 and 6 to make a bent part that protrudes at a 45° angle at the four corners of a box-shaped box surrounded by the upright front, rear, left, and right side walls 3 to 6. A protrusion 11 is formed. A bent piece 1 is provided at the upper end of this bent protrusion 11 and extends to the left and right side walls 5 and 6.
6 are bent inward from each other at fold lines 15 and supported as shown in FIG.

Moreover, the packaging container assembled in this way can be folded flat as shown in FIG. 5 by folding along the inclined fold lines 14, 14 and 17, 17, thereby reducing the bulk. , handling efficiency such as transportation, storage, etc. can be improved.

Next, reference examples of the present invention are shown in FIGS. 6 and 7. In the structure shown in FIG. 6, front, rear, left, and right side walls 3 to 6 are connected to each other in the lateral direction, and a bent protrusion 11 is formed between the adjacent side walls by being bent at a center fold line 10 and protruding inward. By extending a glue margin 13 to the bent protrusion 11 provided at the side end of the rear side wall 4 and pasting this glue margin 3 to the inside of the right side wall 6, the front, rear, left and right side walls 3 to 6 are formed into a rectangular cylindrical shape. It is designed to be connected to. Then, the bottom pieces 1a to 1d are extended to the lower ends of the front, left, and right side walls 3 to 6 via the fold lines 2a to 2d, respectively, and symmetrical notches 19, 19 are provided at the tips of the bottom pieces 1c, 1d. A concave notch 20 is provided at the tip, and a projecting piece 21 that projects into the notches 19, 19, 20 is further formed at the tip of the bottom piece 1b. On the other hand, a lid portion 8 is extended from the upper end of the rear side wall 4 via the fold line 7, and the lid portion 8 is further provided.
A tongue piece 22 is provided protrudingly at the tip of the front side wall 3 and the left and right side walls 5, 6 have bending pieces 16 extending through fold lines 15 at the upper ends thereof, respectively. Furthermore, the fold line 15 of the front side wall 3
A locking groove 23 for a tongue piece 22 protruding from the tip of the lid part 8 is provided along the lid part 8.

Then, paste the glue 13 on the inside of the right side wall 6,
The bottom pieces 1c, 1d, and 1a are bent inward in order, and then the bottom plate 1b is bent, and the projections 21 provided at the tips are inserted into the notches 19, 19, and 20, and assembled to the closed bottom. On the other hand, each bent piece 16 is bent inwardly, and then the lid part 8 is placed on the tongue piece 22.
Assembling is completed by inserting it into the locking groove 23. In this embodiment, the corners of the bottom pieces 1a to 1d are supported at the lower end of each bent protrusion 11, and the bent pieces 16 and the lid 8 are supported at the upper end, so that packaging containers can be stacked. It is possible to increase the withstand pressure load in the closed state.

In each of the above-mentioned embodiments, the folded portions of the bent protrusions 11 are pasted together and integrated to further increase the strength, particularly improving the pressure load when stacking packaging containers and the strength as a partition wall. As a result, the effect of achieving the object of the present invention can be made remarkable.

Furthermore, by forming the protruding length of each bent protrusion 11 to be long, the function of the partition wall can be strengthened.

In addition, when not in use, the packaging container can be folded flat along oblique fold lines to reduce its bulk, making it easy to transport, store, etc.

[Effects of the invention] As described above, the packaging containers of the invention can be stacked in multiple tiers by supporting the lid and bottom at both upper and lower ends of the bent protrusion that protrudes inward at the corner of each side wall. This can prevent deformation in some cases. In addition, the bending protrusion part has a space between the stored items and each side wall.
It is possible to provide cushioning properties by forming a partition wall, and furthermore, it is possible to partition stored articles as a partition wall and safely protect the articles without having to move them.

In addition, the assembled packaging container can be folded along the inclined fold lines to make it flat and reduce its bulk.
The efficiency of handling such as transportation and storage can be improved.

Furthermore, the above-mentioned effects can be further enhanced by bonding and integrating the bent protrusions.

[Brief explanation of the drawing]

The figures relate to an embodiment of the packaging container of the present invention, in which Fig. 1 is a developed plan view, Figs. 2 and 3 are perspective views of the assembled state, Fig. 4 is a cross-sectional view, and Fig. 5 is a flat view. FIG. 6 is a perspective view of a packaging container according to the present invention, in which each side wall is connected in a horizontal direction, and FIG. 7 is a cross-sectional view of the same assembled state. . 1...Bottom, 3-6...Front, rear, left and right side walls, 8...
Lid part, 11...Bending protrusion part.

Claims (1)

[Scope of utility model registration request] By folding cardboard, front, rear, left and right side walls 3 to 6 are extended to the four sides of the rectangular bottom part 1 via fold lines 2a to 2d, and a lid part 8 is further extended to the rear side wall 4 via fold lines 7.
are installed in series, and there are fold lines 1 at both left and right ends of the front and rear side walls 3 and 4.
A bending protrusion 11 that is folded in half at 0 is extended, and a glue margin 13 is extended at the tip of each bending protrusion 11 via a folding line 12, and the front wall 3 is symmetrically inclined. The broken lines 14, 14 are provided, and the left and right side walls 5,
6, a bent piece 16 is extended through the bent line 15, and an inclined bent line 17,1 that reaches this bent piece 16 is provided.
7 are provided in a left-right symmetrical manner, an insertion piece 19 is formed extending from the tip of the lid part 8 via a fold line 18, and the front, rear, left and right side walls 3 to 6 are erected at the fold lines 2a to 2d, respectively, Then, each bending protrusion 11 is connected to a folding line 10,
12, and glue the glue 13 onto the left and right side walls 5, 6.
The front, rear, left, and right side walls 3 to 6 are affixed to the inner surface of the
The bent protrusions 11 are located at the four corners of the box surrounded by
1. A packaging container characterized in that the container has a structure in which the container stands upright and protrudes at a predetermined angle with respect to the side wall.