JP2002104376A - Paper box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a single motion assembly of a bottom portion by preventing bottom component sections, opposing and overlapping with each other, from hitting against each other, in a paper box which can be brought from a furled state to an assembled state with a single motion. SOLUTION: This paper box, in which a plurality of bottom component sections 5, 6, 7, and 8 are furled inwardly and folded onto side walls 1, 2, 3, and 4, respectively, in the furled state, and rise from the side walls 1, 2, 3, and 4 and overlap with each other to form the bottom portion in the assembled state, is provided with projecting pieces 6c and 8c at end portions of bottom component sections 6a and 8a to be located on the outer side in the assembled state through auxiliary ridge-folding lines 66 and 88. When shifting the furled state to the assembled state, the projecting pieces 6c and 8c abut on bottom component sections 6b and 8b to be located on the inner side in the assembled state, and suppress the rising of them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a paper box, and more particularly to an improvement in an assembling structure of a bottom portion thereof.

[0002]

2. Description of the Related Art Today, there is a tendency for paper boxes to be shipped in a folded state and to be assembled by simple operation when used. An example of this type of paper box is shown in FIGS. 5 is an exploded view of a conventional paper box, FIG. 6 is an enlarged view of a main part of the paper box, and FIG. 7 is a perspective view of the paper box as viewed from the bottom in an assembled state. The paper box includes a right bottom component 5 extending from the right side wall 1 via a mountain fold line 15,
A front bottom component 6 extending from the front side wall 2 via the mountain fold line 26, a left bottom component 7 extending from the left side wall 3 via the mountain fold line 37, and a mountain fold from the rear side wall 4. A rear bottom component 8 extending via a line 48.
The right-bottom component 5 and the front-bottom component 6 are connected by a glue margin piece 6n, and are continuously provided via a valley fold line 56. 8n and are continuously provided via a valley fold line 78. The left bottom component 7 and the front bottom component 6 are separated, and the right bottom component 5 and the rear bottom component 8 are separated. Note that upper cover constituting pieces 9a, 9b, 9c, 9d extend from the upper portion of the front side wall 2 and the left and right side walls.

This paper box is provided with the above-mentioned mountain fold lines 15, 2
6, 37, 48, and the mountain fold line 12 between the right side wall 1 and the front side wall 2 and the mountain fold line 34 between the left side wall 3 and the rear side wall 4 are each mountain-folded by almost 180 degrees. Of the valley fold lines 56 and 78 of about 180 degrees, respectively, and the ridge fold line 23 between the left side wall 3 and the front side wall 2 and the ridge fold line 14 between the right side wall 1 and the rear side wall 4 become: By being extended, they are folded. here,
The front, rear, left, and right bottom component parts 5, 6, 7, 8 are bent inward, and are placed on the front, rear, left, and right side walls 1, 2, 3, and 4. In so doing, so-called one-touch assembly becomes possible. Specifically, a hand is placed at the position of the mountain fold line 12 between the right side wall 1 and the front side wall 2 and the mountain fold line 34 between the left side wall 3 and the rear side wall 4 so that both fold lines approach each other. By applying force, the left side wall 3
The crease line 23 between the front wall 2 and the right crest line 14 and the crease line 14 between the right side wall 1 and the rear side wall 4 are each bent, and finally become a state of being crested at about 90 degrees, thereby forming a rectangular parallelepiped. It will be assembled in the shape of. With this assembling operation, the valley fold line between the right bottom component 5 and the front bottom component 6 and the valley fold line between the left bottom component 7 and the rear bottom component 8 naturally extend. Become. In other words, the front, rear, left and right bottom component parts, which are bent inward and are superimposed on the front, rear, left and right side walls, rise naturally, and the left half 6b of the front bottom component part 6 becomes the left bottom component part 7. And the right half 8b of the rear bottom component 8 is located on the right half 6a of the right bottom component 5 and the front bottom component 6 on the left half 8a of the rear bottom component 8. Note that the left half 8a and the right half 8 of the rear bottom component 8 are
b means left and right in the assembled state,
In the developed view of FIG. 5, the left and right sides are drawn in an inverted state (the same applies hereinafter).

However, when each of the front, rear, left and right bottom components rises during the assembly operation, the opposing bottom components rise at the same time, so that they collide with each other. That is, the right half 8b of the rear bottom component 8
And the right half 6 of the right bottom component 5 and the front bottom component 6
a may collide with each other, or the left half 6b of the front bottom component 6 and the left half 8a of the left bottom component 7 and the rear bottom component 8 may collide with each other. When such collision occurs, the bottom components 5, 6, 7, 8 cannot be raised any longer, and the box cannot be assembled. In order to prevent this, it is necessary to reduce the size of the right bottom component 5 and the right half 6a of the front bottom component to prevent collision with the left half 8a of the rear bottom component 8. Similarly, it is necessary to reduce the left half 8a of the left bottom component 7 and the rear bottom component to prevent collision with the left half 6b of the front bottom component 6. Specifically, as shown in FIG. 6, the inclined side 51 of the right bottom component 5
Must be less than or equal to about 45 degrees, and the width h1 of the right half 6a of the front bottom component 6 must be less than or equal to about half the width h2 of the left half 6b of the front bottom component 6. There is.

As described above, since the angle α of the inclined side 51 of the right bottom component 5 needs to be set to about 45 degrees or less, the glue margin 6n to be glued to the right bottom component 5 also becomes small. As described above, when the adhesive margin 6n becomes small, the adhesive margin 6
The operation of gluing n becomes difficult, and an appropriate gluing process cannot be performed unless the positioning accuracy when performing automatic gluing by a machine is strictly controlled. Furthermore, the smaller the area of glue, the lower the strength of the bottom. Further, as described above, when the width h1 of the right half 6a of the front bottom component 6 is set to be approximately half or less of the width h2 of the left half 6b of the front bottom component 6, in the assembled state, the bottom components facing each other in the assembled state. The overlapping area (the area where the right half 6a of the front bottom component 6 and the right half 8b of the rear bottom component 8 opposed thereto overlap) also becomes small, and the strength of the bottom also decreases from this point. Resulting in.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper box which can be assembled from a folded state to a one-touch state by preventing collision of opposing bottom components overlapping each other. The object is to realize a reliable one-touch assembly at the bottom. It is another object of the present invention to provide a paper box which can be assembled from a folded state to a one-touch state, and has a large gluing area between adjacent bottom components. Still another object of the present invention is to increase the strength of the bottom of a paper box which can be assembled from a folded state with one touch.

[0007]

A first aspect of the present invention is a paper box which can be assembled from such a folded state with one touch, and includes a right bottom part 5 and a front bottom part 6. At least one end has a right protruding piece 6
c is provided, and a left protruding piece 8c is provided at at least one end of the left bottom component 7 and the rear bottom component 8 so that the right protruding piece is provided when shifting from the folded state to the assembled state. 6c abuts the right half 8b of the rear bottom component 8 and the left projecting piece 8c abuts the left half 6b of the front bottom component 6 by providing
This is to solve the above problem. The second invention of the present application is the paper box according to the first invention, wherein at least one of the right bottom component 5 and the front bottom component 6 is connected via the auxiliary mountain fold line 66. A right protruding piece 6c is provided, and a left protruding piece 8c is provided from at least one end of the left bottom component 7 and the rear bottom component 8 via an auxiliary mountain fold line 88 to be folded. When the state shifts to the assembled state, the right protruding piece 6c abuts on the right half 8b of the rear bottom component 8 and the left protruding piece 8c comes into contact with the front bottom component 6.
And the above-mentioned auxiliary mountain fold lines 66 and 88 are folded.

In the third invention of the present application, the plurality of bottom components 5, 6, 7, 8 are folded inward in the folded state to be folded on the side walls 1, 2, 3, 4 and in the assembled state. Standing up from the side walls 1, 2, 3, 4
In a paper box which forms a bottom by being vertically overlapped with each other, an end of the bottom component 6a, 8a to be located in the assembled state at the end is provided with a projecting piece 6c via an auxiliary mountain fold line 66, 88. , 8c are provided, and at the time of transition from the folded state to the assembled state, the above-mentioned protruding pieces 6c, 8c are to be located at the upper parts 6b, 8b.
, The rise of the bottom component portions 6b, 8b to be positioned above is suppressed, and the auxiliary mountain fold lines 66, 88 are folded by the rise of the bottom component portions 6b, 8b. The present invention provides a paper box characterized by the following. In the invention of the present application,
Up and down indicate the vertical positional relationship in a state where the paper box is arranged below the bottom in the assembled state. However, front, rear, left and right indicate only relative positional relationships, and do not specify absolute positional relationships.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded view of a paper box according to an embodiment of the present invention, FIG. 2 is an enlarged view of the main part, and FIG. 3 is a perspective view of the paper box assembling process viewed from the bottom. FIG. 4 is a perspective view of the assembled state of the paper box as viewed from the bottom. Note that the left half 8a and the right half 8b of the rear bottom component 8 mean the left and right in the assembled state, and in the developed view of FIG. same as below).

The basic structure of this paper box is the same as that of the above-mentioned conventional paper box, and is repeated. However, when the structure is described again, a right bottom portion extending from the right side wall 1 through the mountain fold line 15 is formed. A portion 5, a front bottom component 6 extending from the front side wall 2 via the mountain fold line 26, and a left bottom component 7 extending from the left side wall 3 via the mountain fold line 37;
And a rear bottom component 8 extending from the rear side wall 4 via a mountain fold line 48. The right-bottom component 5 and the front-bottom component 6 are connected by a glue margin piece 6n, and are continuously provided via a valley fold line 56. The left-bottom component 7 and the rear-bottom component 8 are connected to each other by a glue margin. 8n and are continuously provided via a valley fold line 78. The left bottom component 7 and the front bottom component 6 are separated, and the right bottom component 5 and the rear bottom component 8 are separated. still,
From the upper part of the front side wall 2 and the left and right side walls, the upper lid constituting piece 9a,
Although 9b, 9c and 9d are extended, the type and the position of the upper cover constituting piece can be changed as appropriate, or the present invention can be carried out without providing.

The paper box is provided with the above-mentioned mountain fold lines 15, 2
6, 37, 48, and the mountain fold line 12 between the right side wall 1 and the front side wall 2 and the mountain fold line 34 between the left side wall 3 and the rear side wall 4 are each mountain-folded by almost 180 degrees. Of the valley fold lines 56 and 78 of about 180 degrees, respectively, and the ridge fold line 23 between the left side wall 3 and the front side wall 2 and the ridge fold line 14 between the right side wall 1 and the rear side wall 4 become: By being extended, they are folded. here,
The front, rear, left, and right bottom component parts 5, 6, 7, 8 are bent inward, and are placed on the front, rear, left, and right side walls 1, 2, 3, and 4. In so doing, so-called one-touch assembly becomes possible. Specifically, a hand is placed at the position of the mountain fold line 12 between the right side wall 1 and the front side wall 2 and the mountain fold line 34 between the left side wall 3 and the rear side wall 4 so that both fold lines approach each other. By applying force, the left side wall 3
The crease line 23 between the front wall 2 and the right crest line 14 and the crease line 14 between the right side wall 1 and the rear side wall 4 are each bent, and finally become a state of being crested at about 90 degrees, thereby forming a rectangular parallelepiped. It will be assembled in the shape of. With this assembling operation, the valley fold line between the right bottom component 5 and the front bottom component 6 and the valley fold line between the left bottom component 7 and the rear bottom component 8 naturally extend. Become. In other words, the front, rear, left, and right bottom component parts that are bent inward and are superimposed on the front, rear, left, and right side walls naturally rise, and the left half of the front bottom component part 6 is the left bottom component part 7, It is located on the left half of the rear bottom component 8, and the right half of the rear bottom component 8 is located on the right half of the right bottom component 5 and the front bottom component 6.

The above structure is substantially the same as the structure of the conventional paper box described above, but the present invention is different from the conventional paper box in that the projecting pieces 6c and 8c are provided. Different. That is, a right protruding piece 6c is provided at at least one end of the right bottom component 5 and the front bottom component 6, in this example, at the end of the right half 6a of the front bottom component 6. In addition, a left projecting piece 8c is provided at at least one end of the left bottom component 7 and the rear bottom component 8, in this example, at the end of the left half 8a of the rear bottom component 8. Have been.

By providing the protruding pieces 6c, 8c in this manner, as shown in FIG. 3, when shifting from the folded state to the assembled state, the right protruding piece 6c is moved to the rear bottom portion 8
And the left protruding piece 8c contacts the left half 6b of the front bottom component 6. As a result, the right half 8b of the rear bottom component 8 comes into contact with the right protruding piece 6c, whereby the rise to the assembled state is slightly suppressed, and the right half 8b lags behind the opposing right half 6a of the front bottom component 6. become. As described above, since the opposed bottom components do not rise simultaneously and rise with a slight time difference, the right half 8b of the rear bottom component 8 is positioned on the right half 6a of the right bottom component 5 and the front bottom component 6. I will be.
Similarly, the left half 6 b of the front bottom component 6 is provided with a left protruding piece 8.
c, the rise to the assembled state is slightly suppressed, and the left half 8 of the opposed rear bottom component 8 is opposed.
a. As described above, since the opposed bottom components do not rise at the same time but rise with a slight time difference, the left half 8b of the front bottom component 6 is located on the left half 8a of the left bottom component 7 and the rear bottom component 8. I will be.

More preferably, the right projecting piece 6c is provided via the auxiliary mountain fold line 66, and the left projecting piece 8c is provided via the auxiliary mountain fold line 88. Here, the auxiliary mountain fold line is
In the folded state, it means a line that has not yet been mountain-folded and has a habit of being folded by a push line or a break line.
Thus, by providing the auxiliary mountain fold lines 66, 88 at the base ends of the projecting pieces 6c, 8c, the bottom component (the right half 8b and the front half 8b of the rear bottom component 8) facing the projecting pieces 6c, 8c. When it abuts against the left half 6b of the bottom component 6, the opposite bottom component (the right half 8b of the rear bottom component 8)
After the rising of the left half 6b of the front bottom component 6 is suppressed, the opposing bottom component (the rear bottom component 8) is suppressed.
Of the auxiliary mountain fold lines 66 and 88 by the rising operation of the right half 8b of the front bottom component 6 and the left half 6b) of the front bottom component 6.
It is folded at an angle of 80 degrees. As a result, the protruding pieces 6c and 8c are in the way, and the opposing bottom component (the rear bottom component 8
The right half 8b and the left half 6b) of the front bottom component 6 are prevented from rising.

As described above, the protruding pieces 6c and 8c are respectively connected to the upper surface (the inner surface of the box) of the right half 6a of the front bottom component 6 and the upper surface (the box) of the left half 8a of the rear bottom component 8. (The inner side of the box), but this prevents the box from being inclined when the box is set up with the bottom component down. Because, in the first place, the right bottom part 5
And the front bottom component 6 are connected by a glue margin piece 6n,
The glue margin piece 8n is doubled at the glue margin piece 6n, and likewise connects the left bottom component part 7 and the rear bottom component part 8.
Part is doubled. Therefore, the projecting pieces 6c, 8
Even if it is doubled by the folding back of c, only the doubled portion is increased, and the balance of the entire box is not destroyed by this.

In this example, the protruding pieces 6c and 8c have a triangular shape which gradually tapers toward the front end. 8 right half 8b and front bottom component 6
Of the left half 6b) can be carried out by appropriately changing the condition that the rise can be delayed. In the above example, the adhesive margin piece 6n for connecting the right bottom component 5 and the front bottom component 6 is extended from the front bottom component 6, but is extended from the right bottom component 5 side. You may do so. Similarly, the other adhesive margin piece 8n may be extended from the left bottom component 7 side. Further, the projecting pieces 6c, 8c may also extend from the right bottom component part 5 side and the left bottom component part 7 side, or may extend from the glue margin pieces 6n, 8n.

As described above, the protruding pieces 6c and 8c are provided so that the opposing bottom components do not rise at the same time.
Since it is set up with a slight time difference, the left half 8b of the front bottom component 6 is reliably positioned on the left half 8a of the left bottom component 7 and the rear bottom component 8. As a result, the degree of freedom in designing the bottom component of the box is increased, and more specifically, the bottom component can be implemented in the following mode.

First, the right bottom component 5 and the right half 6a of the front bottom component can be made larger than before, and likewise the left bottom component 7 and the left half 8a of the rear bottom component.
Can be made larger than before. Specifically, FIG.
, The angle α of the inclined side 51 of the right bottom component 5
Can be about 45 degrees or more (70 to 80 degrees in this example), and the width h of the right half 6a of the front bottom component 6 is
1 can be greater than or equal to half (about 75% in this example) the width h2 of the left half 6b of the front bottom component 6. still,
Although not shown in FIG. 2, the angle of the inclined side of the left bottom component 7 can be similarly increased, and the width of the left half 8a of the rear bottom component 8 can be similarly increased.

As a result, it is possible to increase the size of the adhesive margin 6n to be glued to the right bottom component 5, and also to increase the size of the adhesive margin 8n to glue the left bottom component 7. As a result, the glue pieces 6n, 8n can be made large, and as a result, the work of gluing the glue pieces 6n, 8n can be performed reliably. In particular, when automatic gluing is performed by a machine, poor gluing occurs. It is possible to reduce the risk of doing so. Moreover, the larger the area of glue,
The strength of the bottom component also increases. Further, as described above, the width of the right half 6a of the front bottom component 6 and the rear bottom component 8
The width of the left half 8a can also be increased in the same manner, so that the area where the bottom components facing each other overlap in the assembled state can be increased, and from this point, the strength of the bottom components can be improved. Can be done.

In addition to the above-described embodiments, the present invention can be implemented with various changes, and the shape of each part can be changed according to the change of the shape of the entire paper box. is there. For example, the glue allowance pieces 6n may be superimposed and glued on the right bottom constituent part 5 upward or downward. Similarly, a left bottom component 7 and a glue margin 8n to be glued to the left bottom component 7
May be either upper or lower. Further, the front bottom component 6 and the right bottom component 5 can be formed continuously via a fold line. In this case, the front bottom component 6, the right bottom component 5, and the glue allowance may be extended from the front side wall 2 in this order, and the glue allowance may be glued to the right side wall 1. 1, the right bottom part 5, the front bottom part 6, and the glue may be extended in this order, and the glue may be glued to the front side wall 2. Similarly, the rear bottom component 8 and the left bottom component 3 can be formed continuously via a fold line. In this case, either the rear bottom component 8 or the left bottom component 3 can be formed. One,
What is necessary is just to extend from any one of the rear side wall 4 and the left side wall 3, and to glue to the other by glue margin. Although the paper box is made of paper as a main raw material, it is folded and assembled with substantially the same properties as paper, such as a composite material of paper and synthetic resin material, or a composite material of metal foil and the like. It can be changed to a material or the like.

[0021]

The invention of the present application is directed to a paper box which can be assembled from the folded state to the one-touch state by one-touch operation. Thus, a paper box that can be assembled can be provided. This increases the degree of freedom in designing the bottom of the carton, for example,
It is also possible to improve the strength of the bottom by increasing the area of gluing between adjacent bottom components or increasing the area of overlap between the bottom components that are combined with each other.

[Brief description of the drawings]

FIG. 1 is a development view of a paper box according to an embodiment of the present invention.

FIG. 2 is an enlarged view of the main part.

FIG. 3 is a perspective view of the state of the assembling process of the paper box as viewed from the bottom.

FIG. 4 is a perspective view of the assembled state of the paper box as viewed from the bottom.

FIG. 5 is a development view of a conventional paper box.

FIG. 6 is an enlarged view of the main part.

FIG. 7 is a perspective view of the paper box as viewed from the bottom in an assembled state.

[Explanation of symbols]

 Reference Signs List 1 right side wall 2 front side wall 3 left side wall 4 rear side wall 5 right bottom component 6 front bottom component 6a right half of front bottom component 6b left half of front bottom component 6c right protruding piece 7 left bottom component 8 rear Bottom component 8a Left half of rear bottom component 8b Right half of rear bottom component 8c Left projecting piece 66 Auxiliary mountain fold line 88 Auxiliary mountain fold line

Claims (3)

[Claims] 1. A right bottom component (5) extending from a right side wall (1) via a mountain fold line (15) and extending from a front side wall (2) via a mountain fold line (26). From the front bottom component (6) and the left side wall (3).
7) a rear bottom component (8) extending from the rear side wall (4) via the mountain fold line (48); The component (5) and the front bottom component (6) are connected continuously via a valley fold line (56), and the left bottom component (7) and the rear bottom component (8) are valley fold lines (78). )
The left bottom component (7) and the front bottom component (6) are separated, the right bottom component (5) and the rear bottom component (8) are separated, The mountain fold lines (15, 26, 37, 48), the mountain fold line (12) between the right side wall (1) and the front side wall (2), the left side wall (3) and the rear side wall (4) The mountain crease line (34) between them is mountain-folded, and the valley fold lines (56, 78) are each valley-folded, and the mountain fold line between the right side wall (1) and the rear side wall (4). (14), mountain fold line (23) between left side wall (3) and front side wall (2)
Are respectively folded to be folded, and the left half (6b) of the front bottom component (6) is placed on the left half (8a) of the left bottom component (7) and the rear bottom component (8). In the paper box assembled with the right half (8b) of the rear bottom component (8) positioned on the right half (6a) of the right bottom component (5) and the front bottom component (6), A right projecting piece (6c) is provided at at least one end of the bottom component (5) and the front bottom component (6), and the left bottom component (7) and the rear bottom component (8). A left protruding piece (8c) is provided at at least one of the ends, and the right protruding piece (6c) is moved to the right half of the rear bottom component (8) when the state is shifted from the folded state to the assembled state. (8b), and the left protruding piece (8c) is placed on the left half (6) of the front bottom component (6). Carton being characterized in that so as to abut against the). 2. A right projecting piece (6c) is provided from at least one end of the right bottom component (5) and the front bottom component (6) via an auxiliary mountain fold line (66). A left protruding piece (8c) is provided from at least one end of the left bottom component (7) and the rear bottom component (8) via an auxiliary mountain fold line (88). When shifting to the assembled state, the right protruding piece (6c) comes into contact with the right half (8b) of the rear bottom component (8), and the left protruding piece (8c) faces the left of the front bottom component (6). 2. The paper box according to claim 1, wherein said auxiliary mountain fold lines (66, 88) are folded together with the half (6b). 3. A plurality of bottom components (5, 6, 7, 8).
In the folded state, they are folded inward to be folded on the side walls (1, 2, 3, 4). In the assembled state, they rise from the side walls (1, 2, 3, 4) and overlap with each other up and down. In a paper box having a bottom formed, a bottom component (6) to be located below in an assembled state.
a, 8a) are provided with protruding pieces (6c, 8c) via auxiliary mountain fold lines (66, 88), and when the state is shifted from the folded state to the assembled state, the above-mentioned protruding pieces (6c, 8c) are provided. 6c, 8c) should be located above the bottom component (6c, 8c).
b, 8b), the rising of the bottom component (6b, 8b) to be positioned above is suppressed, and the rising of the auxiliary mountain fold line (66, 8b) by the rising of the bottom component (6b, 8b). 88) wherein the paper box is folded.