JP2601887Y2 - Assembled packaging container made of raised bottom paper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling packaging container made of paper, and more particularly to an assembling packaging container made of raised bottom paper suitable as a disposable lunch box.

[0002]

2. Description of the Related Art Conventionally, as an assembling packaging container made of a raised bottom paper of this kind, as disclosed in Japanese Utility Model Laid-Open No. 61-38014 or Japanese Utility Model Laid-Open No. 60-89115, four sides of a bottom wall are known. The front and rear left and right side walls continuously provided from the side through the fold are configured to be inner and outer double, and the bottom wall is located above the lower side of the front and rear left and right side walls, and the fold is formed from the lower edge of the outer wall of each side wall. 2. Description of the Related Art There is known a container in which an inner folded piece is continuously provided.

[0003] Such conventional packaging containers include, for example,
By sticking a polymerized piece continuously provided at the tip of the folded piece to the bottom wall, or by bonding bonded pieces continuously provided on both side edges of the side wall to adjacent side walls, the form of the container is changed. Is to be retained.

[0004] For this reason, in use, it is indispensable to attach required portions, but it is practically impossible to perform the assembly immediately before use. Therefore, in general, transportation, transportation or storage is performed in the completed assembly state where required parts are attached. However, compared to transporting, transportation or storage in a flat folded state, transportation space and storage are Due to the large space, the cost is inevitably increased. Also the raised bottom
Because it is a box of the type, when storing the packaged goods,
The bottom wall becomes more slack, curved downward from the center.
It may be.

The present invention has been made for the purpose of solving the above-mentioned problems, and can be easily assembled when used even when transported and stored in a flat folded state, and the manufacturing cost is reduced. it is possible to manufacture without increasing, even accommodating the article to be packaged that heavy
Depending on the amount, the bottom wall is curved downward from the center
It is an object of the present invention to provide an assembling type packaging container made of raised bottom paper which can prevent the state of being broken.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a folded piece continuously provided from the outer wall of each side wall, and a bottom wall overlapping piece continuously provided from the folded piece. And ensure that the assembled state is maintained , and that the bottom wall is
Side from below and the bottom wall at or near its periphery
Bottom, as supported from below inside the parasite
This is to prevent downward bending of the wall.

That is, the present invention is directed to a front, rear, left and right side walls (2), (3), (4) which are continuously provided from four sides of a bottom wall (1) through folds (21), (21), (21), (21). 4) and (5) are formed as inner and outer duplexes, and the folded pieces (9) (9) (2) are formed from both side ends of the pair of opposed side walls (4) and (5) via the folds (27), (27), (27) and (27). 9), (9) and (9) are connected in series, and the bottom wall (1) has front, rear, left and right side walls (2), (3) and (4).
(5) is located above the lower edge of the outer wall, and is folded from the lower edge of the outer wall of each of the side walls (2), (3), (4), (5) (23)
(23) Folded piece (2c) via (23) (23)
(3c) (4c) (5c ) are continuously provided, each folded
Fold (2c) at the tip of piece (2c) (3c) (4c) (5c)
4) Through the (24), (24) and (24), the bottom wall polymerized piece (2)
d) (3d) (4d) (5d)
A folded piece (4c) of the pair of opposed side walls (4) and (5 )
(5c) is provided with engagement holes (7) (7) (7) (7).
While the bottom wall of the other pair of opposing side walls (2) and (3) is superimposed.
The engaging holes (7) are provided at both ends of the pieces (2d) and (3d).
(7) (7) (8) (8)
(8) (8) is a raised bottom paper made prefabricated packaging container formed by projecting the respective side wall (2) (3) (4) (5)
The upper edge length is set to be larger than the lower edge length
Provided with engaging projections (8) (8) ...
The overlapped bottom wall pieces (2d) and (3d) have widths of the bottom wall (1).
Is set slightly smaller than the width of the
(4c) is folded non-parallel to the outer wall (4b) of the side wall
In the returned state, another pair of bottom wall overlapping pieces (2d) (3
d) is superimposed on the bottom wall (1), while the engagement hole is
(7) ... is the middle of the folded pieces (4c) and (5c) in the length direction
The present invention provides an assembling-type packaging container made of raised bottom paper, characterized in that it is provided in a part .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.

First, a description will be given with reference to a plan view of the unfolded state shown in FIG. 4. The four sides of the rectangular bottom wall (1) are forward and backward through folds (21), (21), (21), and (21). Inner walls (2a) (3a) of left and right side walls (2) (3) (4) (5)
(4a) and (5a) are continuously provided, and each inner wall (2a) (3a)
(4a) and (5a) are formed in an oblique shape with both side edges rising slightly outward, and folds (2) from both side edges.
5) Triangular folded portions (6a) and (6b) constituting the connecting piece (6) are connected to each other via (25). That is,
Length of the upper edge of each inner wall (2a) (3a) (4a) (5a)
Is set to be larger than the length of the lower edge. Adjacent ones each other of the triangular-shaped half portion (6a) (6b) is connected via a fold line (26), the inner wall adjacent to each other are connected by this. In addition, each inner wall (2a) (3
a) Folds (22) (2) from the upper edge of (4a) (5a)
2) Outer walls (2b) (3b) via (22) and (22)
(4b) and (5b) are connected, and each outer wall (2b) (3b)
(4b) and (5b) are formed so that both side edges are inclined slightly outward, and the inner wall (2a) is in an assembled state.
(3a), (4a) and (5a). That is, each outer wall (2b) (3b) (4b) (5
b) The length of the upper edge is the length of the lower edge as in the case of the inner wall.
Is set larger than In addition, each outer wall (2b) (3
b) Folds from the lower edge of (4b) (5b) (23) (23)
(23) Folded piece (2c) (3c) via (23)
(4c) and (5c) are continuously provided, and a fold (2c) is provided at the end of each of the folded pieces (2c), (3c), (4c), and (5c).
4) Through the (24), (24) and (24), the bottom wall polymerized piece (2)
d), (3d), (4d), and (5d) are connected in series. this
From the bottom wall (2d) (3d) (4d) (5d)
A bottom wall overlapping piece provided with an engagement protrusion (8) (8) described later.
(2d) The width (n) of (3d) is, as shown in FIG.
The width is set smaller than the width (m) of the wall (1). Also,
Of the folded pieces, folded pieces (2
c) The length of (3c) is set to be longer than the length from the lower ends of the front and rear side walls (2) and (3) to the bottom wall (1),
In the assembled state, the left and right ends of the folded pieces (2c) and (3c) abut obliquely against the folded pieces (4c) and (5c) of the left and right side walls, and the strength of the corners of the container against external pressure from the lateral direction is also enhanced. It is planned.

The folded pieces (2c) (3c) (4c)
(5c) is a symmetrical position of the front and rear ends of the folded pieces (4c) and (5c) extended from the left and right side walls , and
Along the fold (24) (24) between the folded pieces (4c) and (5c) in the longitudinal direction and the bottom wall overlapping pieces (4d) and (5d) and along the bottom wall overlapping pieces (4d) and (5d). While the long slots (7), (7), (7), (7) for engagement are provided,
The bottom wall overlapping piece (2) extended from the front and rear side walls (2) and (3)
c) The long slot for engagement (7) is provided at both left and right ends of (3c).
(7) (7) (8) (8)
(8) (8) is protruded.

In the figure, (9), (9), (9) and (9) are folds (27) and (27) from the front and rear edges of the outer walls (4b) and (5b) of the left and right side walls (4) and (5). ) (27), (27), a folded piece which is folded between the inner and outer walls of the adjacent side walls (2), (3); (10) is an adhesive applied portion on the back surface of the inner wall (5a); ) Is an adhesive-applied portion on the back surface of the bottom wall superposed piece (5d).

[0012] Thus, the assembled bottom-type paper-made packaging container having the above-mentioned structure is manufactured at the inner wall (4) of the left and right side walls at the manufacturing stage.
a) (5a) Adhesive application point on back surface (10) (10)
An adhesive is applied to the inner and outer walls (4a), (4b), (5).
a) The back surfaces of (5b) are bonded together. An adhesive is applied to the adhesive application points (11) and (11) of the bottom wall overlapping pieces (4d) and (5d) of the left and right side walls, and the bottom wall overlapping pieces (4d) and (5d) are attached to the bottom wall (1). At the same time, the folded pieces (4c) and (5c) are folded back to the inner surface side of the outer wall, and the surfaces of the folded pieces (4c) and (5c) are overlapped with the bottom wall overlapping pieces (4d) and (5d). And is transported, transported or stored in the flat folded state.

In use, while the left and right side walls (4) and (5) are standing upright from the flat folded state, the folded pieces (9) and (9) of the left and right side walls are folded inward as shown in FIG. The fold pieces (9) and (9) are sandwiched between the inner and outer walls, so that the outer wall (3b) of the rear side wall (3) is formed.
Is folded in a standing state as viewed from the bottom, and the folded piece (3c) is folded back to the lower rear surface side of the outer wall (3b). Then, when the engaging projections (8) (8) at both ends of the bottom wall overlapping piece are engaged with the corresponding long holes (7) (7) for engagement, the standing posture of the rear side wall (3) is maintained. In FIG. 1, the engaging projections (8) and (8) at both ends of the bottom wall overlapping piece of the front side wall (2) are engaged with the corresponding long holes for engagement (7) and (7), and the front wall has already been formed. The state where the standing posture of (2) is maintained is shown. When the upright state of the front and rear side walls (2) and (3) is maintained, the assembly of the packaging container is completed. FIG. 2 shows the assembly completed state as viewed from above, and is used in the same manner as a conventional packaging container.

In the above embodiment, the bottom wall overlapping pieces (4d) and (5d) of the left and right side walls (4) and (5) are pasted on the back surface of the bottom wall in advance. If not, assembly is possible. However, it is easier to assemble the bottom wall superposed pieces (4d) and (5d) attached to the back surface of the bottom wall, so that the bottom wall superposed pieces (4d) and (5d) are attached.
Is desirably attached to the back surface of the bottom wall in advance.

[0015]

According to the present invention, an assembling packaging container made of a raised bottom paper according to the present invention has a pair of opposed side walls (2) and (3) according to the above.
(8) (8)
Are protruded, and engagement holes (7) (7) are formed in the folded pieces (4c) (5c) of the other pair of opposed side walls (4) (5).
(7) Since (7) is provided, the engaging protrusions (8), (8), (8), and (8) are formed with the corresponding engaging holes (7).
(7) With the extremely simple operation of engaging with (7) and (7), the upright state of the front and rear side walls (2), (3), (4) and (5) is maintained, that is, the assembly state of the packaging container is completed. can get. Therefore, even if it is transported, transported, stored and assembled in use in the flat folded state, it does not impair the work efficiency at the store and minimizes the transport, transport space and storage space and reduces their cost. The effect that it can reduce is produced.

Moreover, the engaging projections (8), (8), (8)
As for (8), it is sufficient that the bottom wall overlap pieces (2d) and (3d) are slightly protruded from both left and right ends, and the engagement holes (7), (7), (7) and (7) are Folded piece (4c) (5
Since it is provided in c), it has the advantage that it can be manufactured without increasing the material cost.

Further, each of the side walls (2), (3) and (4)
(5) The length of the upper edge is set to be larger than the length of the lower edge.
It was made to lean outward, so the expected form
When stacking multiple packaging containers
Most of the tiered packaging containers are housed in the lower tiered packaging container
And can be stacked in a so-called nested form,
The storage space can be made as small as possible after assembly.

In addition to these, the engaging projections (8) (8).
The width (n) of the bottom wall superposed piece (2d) (3d) provided is
When set to be slightly smaller than the width (m) of the bottom wall (1),
The folded pieces (4c) and (5c) are the outer walls (4b) of the side walls.
(5b) is folded back non-parallel to the other
A pair of bottom wall superposed pieces (4d) and (5d) are superimposed on the bottom wall (1)
And the engagement holes (7) are folded back pieces.
(4c) A bottom wall provided at an intermediate portion in the longitudinal direction of (5c).
The polymer pieces (2d) and (3d) are located at locations away from the periphery of the bottom wall.
Because it is polymerized, the bottom wall (1)
Folded piece (2c) from below inside from the vicinity
(3c) (4c) (5c) will be supported by the bottom
This has the effect of being able to contribute to preventing downward bending of the wall (1).
I do.

[Brief description of the drawings]

1 is a perspective view of the assembled developing viewing the packaging container according to the invention from the bottom.

FIG. 2 is a perspective view after the completion of assembly as viewed from the upper surface.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a plan view of the assembled packaging container according to the present invention in an unfolded state.

FIG. 5 is a sectional view taken along line VV of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bottom wall 2 ... Front wall 2a, 3a, 4a, 5a ... Inner wall 2b, 3b, 4b, 5b ... Outer wall 2c, 3c, 4c, 5c ... Folding piece 2d, 3d, 4d, 5d ... Bottom wall overlapping piece 3 ... Rear wall 4 Left wall 5 Right wall 7 Engagement hole 8 Engagement projection 9 Folding piece 21, 22, 23, 24, 25, 26, 27 Fold

Claims (1)

(57) [Scope of request for utility model registration] 1. Folds (21) from four sides of the bottom wall (1)
(21) The front and rear left and right side walls (2), (3), (4) and (5) continuously provided via (21) and (21) are configured as an inner / outer double,
Folds (27) from both sides of a pair of opposed side walls (4) and (5)
(27) Folded piece (9) via (27) (27)
(9) (9) (9) are connected in series, and the bottom wall (1) is located above the lower side of the outer wall of the front, rear, left and right side walls (2), (3), (4) and (5), and each of the side walls (2) (3) (4)
Fold from the lower edge of the outer wall of (5) (23) (23) (23)
Folded pieces (2c) (3c) (4c) via (23)
(5c) are continuously provided, and each of the folded pieces (2c) (3
c) A fold (24) (24) at the tip of (4c) (5c)
(24) Bottom wall polymerized pieces (2d) (3d) via (24)
(4d) and (5d) are connected in series and the pair of opposed
Engage with folded pieces (4c) (5c) on side walls (4) (5)
Holes (7), (7), (7), (7) are provided, while the other
The bottom wall overlapping piece (2d) (3) of the pair of opposed side walls (2) and (3)
d) The engaging holes (7), (7), (7), (7)
(8) (8) (8) (8)
A raised bottom paper made prefabricated packaging containers made is, each side wall (2) (3) (4) (5), the length of the upper edge
It is set to be larger than the length of the lower edge and is inclined outward
Bottom wall overlapping piece provided with engaging projections (8)
(2d) and (3d), the width is smaller than the width of the bottom wall (1).
The crab is set small and the folded piece (4c) is
Folded back non-parallel to the outer wall (4b)
The other pair of bottom wall overlapping pieces (4d) and (5d) are the bottom wall.
(1), while the engagement holes (7) are
The folded pieces (4c) and (5c) are provided at intermediate portions in the length direction.
An assembling-type packaging container made of raised bottom paper, characterized in that the packaging container is made of a raised bottom paper.