JPH0547050Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an assembly packaging box.

(Prior Art) Conventionally, a packaging box C as shown in FIG. 7 is known.

The method for sealing the box C is as follows: First, both first lid pieces 52, 53, which are connected to the upper edges of a pair of first side plates 50, 51 that stand up opposite to each other, are inserted through the respective fold lines l and l'. Fold and close the lid. Subsequently, both the first lid pieces 5 which have closed the second lid pieces 56 and 57 connected to the upper edges of the pair of second side plates 54 and 55 that stand up facing each other are then removed.
2, 53, the respective fold lines m,
Fold through m′.

The notches o, o', p, p' formed in the first lid pieces 52, 53 are formed by the locking holes 58, 59 when the first lid pieces 52, 53 are butted against each other when the lid is closed.
is beginning to form. On the other hand, cuts q and q' are formed in the second lid piece 56, and a locking part 60 is formed between the cuts q and q', and holding parts 61 and 62 are formed on the outside thereof. ing. Similarly, cuts r and r' are formed in the second lid piece 57, so that the locking part 63, the holding part 64,
65 is formed.

Thereby, the locking parts 60, 63 of the second lid pieces 56, 57 are inserted into the locking holes 58, 59 of the first lid pieces 52, 53, and the locking parts 60, 63 of the second lid pieces 56, 57 are inserted inside the first lid pieces 52, 53. The first lid pieces 52, 5 are locked by the holding parts 61, 62, 64, 65 of the second lid pieces 56, 57.
3 from the outside, and the first lid piece is sealed between the locking parts 60, 63 and the holding parts 61, 62, 64, 65.

As described above, the box C is widely used because it can be easily sealed.

However, the box C has only the locking parts 60, 63 of the second lid pieces 56, 57, and the first lid pieces 52, 5
3, the closed state of the first lid pieces 52, 53 is unstable. Therefore, when the box C is stacked vertically with its lid closed, each lid piece 52, 53, 56, 57
There is an inconvenience that the material falls into the inside of the box C, making it unsuitable for stacking during storage, transportation, etc.

(Problems to be Solved) To solve the above-mentioned disadvantages, the present invention provides an assembly packaging box that is easy to seal and has a solid structure that allows multiple boxes to be stacked vertically after sealing. With the goal.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a pair of first side plates connected to the front and rear edges of a rectangular bottom plate and a pair of second side plates connected to the left and right side edges. A pair of connecting pieces that are made to stand up along the fold line and are connected to the left and right side edges of the upright first side plate are bent along the outside of the second side plate through the fold line, and the side edges of each connecting piece are bent. A pair of folding pieces connected to each other are bent in the direction of the second side plate along the crease line, and are faced and butted against each other, and a stopper piece connected to the upper edge of each folding piece is bent along the fold line. inserting the folding pieces in close contact with the sides of each folding piece at right angles into the notches formed over the entire vertical length of the upright second side plate so that both folding pieces protrude inside the second side plate; The respective retaining pieces that were in close contact with the protruding folding pieces are arranged horizontally, and the first lid pieces connected to the upper edges of the two upright first side plates are opposed to the bottom plate through the fold line. The second lid pieces connected to the upper edges of the upright second side plates are bent so as to face the bottom plate through the crease line, and the second lid pieces provided on the first lid pieces are bent so as to face the bottom plate through the fold line. The locking portion provided at the tip of the second lid piece is inserted into the locking hole and locked, thereby sealing the hole, and the abutting edges of both first lid pieces are supported by the respective locking pieces. It is characterized by

(Function) According to this means, in the packaging box of the present invention, after each of the side plates and the connecting piece is folded along the respective fold lines and the folded piece is inserted into the notch of the second side plate, the stopper piece is removed. It can be assembled by simply unfolding the lid, and it can be easily sealed by inserting and locking the locking part provided at the tip of the second lid piece into the locking hole provided in the first lid piece. . At the same time, the stopper piece extending horizontally within the box is inscribed in the first cover piece at the butt position of the first cover piece after sealing to support the first cover piece and the second cover piece, and the folding piece is the second
Prevents it from slipping out from the notch in the side plate.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a perspective view of a packaging box according to an embodiment of the present invention with its lid opened, Fig. 2 is a developed view of Fig. 1, Fig. 3 is an explanatory diagram showing an assembled state, and Fig. 4 is a sealing process. FIG. 5 is a partially sectional side view, and FIG. 6 is an explanatory view showing a packaging box of another embodiment.

As shown in FIG. 1, the assembled packaging box A of this embodiment has a rectangular parallelepiped outer shape, and was formed by punching a packaging paperboard such as corrugated cardboard into the shape shown in FIG. 2.

As shown in FIG. 2, first side plates 2 and 3 of the same shape are connected to the front and rear sides of the rectangular bottom plate 1 via fold lines a and a', and on the left and right sides of the bottom plate 1. , second side plates 4 and 5 having the same shape are connected to each other via fold lines b and b'.

Further, the second side plates 4 and 5 have fold lines b,
Cuts 6 and 7 are formed which extend vertically when vertically erected through b'.

Further, connecting pieces 8 and 9 are connected to both side edges of the first side plate 2 through fold lines d and d', and connecting pieces 8 and 9 are connected to each other through fold lines e and e'. Folded piece 1
0 and 11 are consecutively provided. Furthermore, the folding piece 1
0 and 11, a stopper piece 1 is inserted through the fold lines f and f'.
2 and 13 are installed in series. Similar to the second side plate 2, connecting pieces 14 and 15 are connected to both side edges of the second side plate 3 via fold lines g and g'. Folding pieces 16 and 17 are connected to each other through lines of sight h and h', and the folding pieces 1
6 and 17, the stopper piece 1 is inserted through the fold lines i and i'.
8 and 19 are arranged in succession.

Further, as described later, the stopper pieces 12, 1
3, 18, 19 are fold lines f, f', i, respectively.
When the folding pieces 10, 11, 16, 17 are folded in close contact with the inside of the folding pieces 10, 16, 17 via i',
When 11 and 17 are brought into contact with each other, a thickness is formed in the upper part thereof. Therefore, folding pieces 10, 16 and 1
In order to facilitate insertion of the notches 1 and 17 into the notches 6 and 7, the upper portions of the notches 6 and 7 were previously formed into a widened shape. Also, cuts 6 and 7
is provided at the same length as the height of the second side plates 4 and 5.

Furthermore, first lid pieces 20 and 21 are connected to the edges of the first side plates 2 and 3 on the sides opposite to the bottom plate 1 via fold lines j and j', respectively. the second side plate 4,
Second lid pieces 22 and 23 are connected to the edge of the bottom plate 5 opposite to the bottom plate 1 through fold lines k and k', respectively.

In addition, the second lid pieces 22 and 23 are formed with cuts 24, 25, 26, and 27 on their respective tip edges, so that the cuts 24, 25, 26, and 27 are formed between the cuts 24, 25, and the cuts 2
Locking portions 28 and 29 are formed between 6 and 27. At the same time, the notches 24 of the locking parts 28 and 29,
A presser part 3 is provided on the front and rear sides via 25, 26, and 27.
0, 31, 32, and 33 are formed. Furthermore, the locking portions 28 and 29 are inserted through and locked into the first lid pieces 20 and 21 when the first lid pieces 20 and 21 are brought into contact with each other to close the lid, as will be described later. Cuts 36, 3 forming locking holes 34, 35
7, 38, and 39 are molded.

Next, the assembly from the unfolded state shown in the second figure will be explained step by step.

First, as shown in the third figure, the first and second side plates 2, 3, 4, and 5 are vertically bent along fold lines a, a'b, and b', respectively, to stand up.

Subsequently, the connecting pieces 8, 9, 14, 15 are bent along the outsides of both second side plates 4, 5 along the fold lines d, d', g, g', respectively.

Next, fold the stopper pieces 12, 13, 18, 19 along the fold lines f, f', i, i', respectively.
11, 16, 17, and at the same time insert the folded pieces 10, 11 and 16, 17 into the notches 6 and 7 of the second side plates 4, 5 at right angles. At this time, the stopper pieces 12, 13, 18, 19
The folding pieces 10 and 16 are spread out from each other in the box.
and 11, 17 from coming off, while at the same time keeping the folding pieces 10, 16 and 11, 17 in close contact with each other. Due to this, the folding pieces 10, 1
1, 16, and 17 do not accidentally come out of the respective notches 6, 7, and maintain a state perpendicular to the second side plates 4, 5 and the bottom plate 1. This allows the first
The box shape shown in the figure is maintained.

When sealing the box A, as shown in FIG.
j' and horizontally to the bottom plate 1.
The edges of the lid pieces 20 and 21 are butted against each other. As a result, the notches 36 and 38 formed on the edges of the first lid pieces 20 and 21 form a locking hole 34, and the notches 37 and 39 form a locking hole 35. continue,
The second lid pieces 22 and 23 are bent horizontally to the bottom plate 1 along fold lines k and k'. Then, the second
The locking portions 28 and 29 of the lid pieces 22 and 23 are inserted into the locking holes 34 and 35. As a result, the first lid plates 20 and 21 are attached to the locking portions 2 of the second lid pieces 22 and 23.
8 and presser parts 30, 31, locking part 29 and presser part 3
Both end portions are sandwiched between 2 and 33 to ensure a secure seal. In addition, when sealing, crease lines z and z' are provided in the second lid pieces 22 and 23 parallel to the crease lines k and k', and the fourth
As shown by the imaginary line in the figure, the locking parts 28, 2 are folded while bending the second lid pieces 22, 23 along the fold lines z, z'.
9 may be inserted into the locking holes 34 and 35.

By closing the lid in the above manner, the box A of this embodiment has a folding piece 1 as shown in FIG.
0, 16, 11, and 17 are held vertically in the box A, and a stopper piece 1 is connected to each upper edge of the folding piece.
2, 18, 13, and 19 extend horizontally within the box A and support the butt edges of the first lid pieces 20 and 21, increasing the compressive strength from above and below, and increasing the compressive strength of the box A.
Even if the butting edges of the first lid pieces 20 and 21 bend into the box A when stacked vertically, the first and second lid pieces 20, 21, 22, and 23 will not fit inside the box A. Since it is possible to prevent the boxes A from falling down, there is no problem even if a plurality of boxes A are stacked one above the other. Furthermore, since the stopper pieces 12, 18, 13, and 19 extend horizontally within the box A, the folding pieces 10, 16, 11, and 17 come out of the notches 6 and 7 of the second side plates 4 and 5, causing the box shape to collapse. can be prevented.

In addition, as another embodiment, as shown in FIG. 6, the respective fold lines j,
Locking holes 40, 41, 42, 43 are provided on the j′ side, and the notches 24, 25, 26, 27 formed at the tip edges of the second lid pieces 22, 23 are used to
4 and 25 and between the notches 26 and 27.
4, 45, and the notches 2 of the holding parts 44, 45
4, 25, 26, 27 on the front and rear sides with the locking part 4
6, 47, 48, and 49, and the other parts have the same structure as the box A. When closing the lid of the box B, as shown in FIG. do. As a result, the box B can be sealed as easily as the box A. Also, the box B
Box A has the same structure as the box A, and the stopper pieces 12, 18, 13, 19 connected to the upper edges of the folding pieces 10, 16, 11, 17 are connected to the upper edges of the folding pieces 10, 16, 11, 17 in the same manner as shown in FIG.
Since it extends horizontally within the interior and supports the abutting edges of the first lid pieces 20, 21, the compressive strength from above and below increases, and the first lid piece and the second lid piece 20, 2
Since it is possible to prevent boxes 1, 22, and 23 from falling into box A, there is no problem even if a plurality of boxes A are stacked one above the other. In addition, the stopper pieces 12, 18, 13, 1
9 extends horizontally within the box A, the folding pieces 10, 16, 1 are formed from the notches 6, 7 of the second side plates 4, 5.
1 and 17 can be prevented from falling out and causing the box shape to collapse.

(Effects) As is clear from the above, the packaging box of the present invention has a simple structure, so it can be assembled by only bending and inserting, and it can be easily sealed.

Furthermore, each stopper piece connected to the upper edge of each of the folding pieces extends horizontally within the box and supports the abutting edges of both the first lid pieces after sealing, so that the first lid piece and the second lid piece It is possible to prevent the folding pieces from falling into the box, and also to prevent the box shape from collapsing due to each folding piece coming out from the notch in the second side plate, increasing the pressure resistance of the packaging box and allowing multiple packaging boxes to be used together. can be stacked one above the other.

Therefore, according to the present invention, it is possible to provide an assembly packaging box that is easy to seal and has a strong structure with high stackability.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a packaging box according to an embodiment of the present invention with its lid opened, Fig. 2 is a developed view of Fig. 1, Fig. 3 is an explanatory diagram showing an assembled state, and Fig. 4 is a sealing process. 5 is a partially sectional side view, FIG. 6 is an explanatory view showing a packaging box of another embodiment, and FIG. 7 is an explanatory view of a conventional packaging box. 1... Bottom plate, 2, 3... First side plate, 4, 5...
2nd side plate, 6, 7...notch, 8, 9, 14, 1
5... Connecting piece, 10, 11, 16, 17... Folding piece, 12, 13, 18, 19... Stopping piece, 20,
21...First lid piece, 22, 23...Second lid piece, 2
8, 29, 46, 47, 48, 49...Locking part,
34, 35, 40, 41, 42, 43...locking hole, A, B...assembly packaging box.

Claims (1)

[Scope of utility model registration request] A pair of first side plates connected to the front and rear edges of a rectangular bottom plate and a pair of second side plates connected to the left and right side edges are respectively erected through the fold line, and connected to the left and right side edges of the erected first side plate. Fold the pair of connecting pieces provided along the outside of the second side plate along the fold line, and fold the pair of folded pieces connected to the side edges of each connecting piece in the direction of the second side plate via the fold line. The vertical part of the second side plate is bent so that they face each other, and the retaining piece connected to the upper edge of each folded piece is bent along the fold line so as to be brought into close contact with the side surface of each folded piece. Each folding piece is inserted perpendicularly into a notch formed over the entire length in the direction to protrude inside the second side plate, and each of the stop pieces that was in close contact with each of the protruding folding pieces is horizontally arranged, Folding the first lid pieces connected to the upper edges of the two upright first side plates so as to face the bottom plate through the fold line, and abutting each other;
second side plates connected to the upper edge of the second upright side plate, respectively
The lid piece is bent so as to face the bottom plate through the fold line, and the locking portion provided at the tip of the second lid piece is inserted into the locking hole provided in the first lid piece to lock the lid piece. An assembled packaging box characterized in that the abutting edges of both first lid pieces are supported by the respective stopper pieces.