JPH1149135A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box which is easy to build up, and in addition, wherein the connected state between side panels and end panels is not loosened or removed, and also, the load withstanding property of a lid panel is high. SOLUTION: End panels 3, 3, 8, 8 which form a side wall of a box are made into a double structure of first end panels 3, 3, and second end panels 8, 8, and at the same time, these end panels, 3, 3, 8, 8 are respectively extended from both sides of side panels 2, 2 which form a side wall of the box with folding lines. Lid flaps 6, 6 are extended from the first end panels 3, 3, and the lid flaps 6, 6 are inserted to the inside of the lid panel 4 which forms the upper wall of the box. A pair of slits 15, 15 are provided at both sides of the central parts of the lid flaps 6, 6. Also, insertion flaps 13, 13 are extended from the second end panels 3, 3 which are inserted to the insides of the first end panels 3, 3. For the insertion flaps 13, 13, their both side parts 17, 17 only are separated from the second end panels, 8, 8, and both side parts 17, 17 are inserted in the slits 15, 15 of the lid flaps 6, 6 from the inside to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box of a type in which a corrugated board and the like are punched out and a folded line is formed into a rectangular parallelepiped, and the top surface of the box is opened and closed. It relates to a packaging box.

[0002]

2. Description of the Related Art A long rectangular parallelepiped box for storing fresh flowers such as carnations is used. Such a packaging box has a structure in which a bottom wall, a surrounding side wall and an end wall are fixed to each other, and a lid panel forming an upper wall closes an upper surface of the box so as to be freely opened and closed.

[0003] Such a packaging box is assembled from a blank made by punching a paperboard or the like such as a corrugated cardboard and making a folding line. Most of the blanks have two pairs of opposite sides of the bottom panel as fold lines, side panels and end panels are respectively provided continuously through the fold lines, and the other side of one or both side panels is a fold line, The lid panel is provided continuously through the folding line. A hexahedral bottom wall is formed by the bottom panel, and a side panel and an end panel that are erected from the bottom panel via a folding line are connected to each other to form a hexahedron.
The upper surface of the hexahedron is closed by a lid panel formed by forming a side wall and an end wall of the face body and bending along a folding line of the side panel.

[0004] Such a packaging box is provided to a flower plantation or the like, which is the user of the packaging box, in a state before assembling the blank, that is, by punching out a corrugated cardboard or the like, and in a flank with a broken line. When a plantation packs and ships fresh flowers, it is used in assembling blanks as boxes. At this time, it is preferable to be able to assemble as a box without using staples or glue, and various ideas have been devised for a conventional box. In particular, a packaging box that is easy to assemble even by an amateur and can be assembled firmly is desired.

[0005]

However, in this type of conventional box body, if the design is made with a focus on ease of assembly, the connection between the side panel surrounding the bottom panel and the end panel will be weakened, and the box will be inevitably weakened. When stacked in multiple stages, there is a problem that the connection between the side panel and the end panel is loosened or disconnected, and the load easily collapses.

Further, in the conventional packaging box, the load resistance of the lid panel is poor, and a large load is applied to the lid panel when the lid panels are stacked in multiple stages. There was a problem that it would be damaged. The present invention has been made in view of the above problems of the conventional packaging box, and is easy to assemble. Moreover, the connection state of the side panels to the end panels is not loosened or disconnected, and the load resistance of the lid panel is high. The purpose is to provide boxes.

[0007]

According to the present invention, in order to achieve such an object, the end panels 3, 3, 8, 8 are connected to the first end panels 3, 3, and the second end panels 8, 8, respectively. The end panels 3, 3, 8, 8 were extended from both sides of the side panels 2, 2 via fold lines, respectively. Then, the lid flaps 6, 6 inserted from the first end panels 3, 3 into the inside of the lid panel 4 are extended, and a pair of slits 15, 15 are provided on both sides of the center of the lid flaps 6, 6.
Is provided. Also, the insertion flaps 13, 13 are inserted from the second end panels 3, 3 inserted inside the first end panels 3, 3.
Is extended. The insert flaps 13, 13 are separated from the second end panels 8, 8 only on both sides 17, and the two sides 17, 17 are connected to the slits 15, 15 of the lid flaps 6, 6. Inserted from inside to outside.

In the packaging box, side panels 2 are respectively extended from two pairs of opposite sides of the bottom panel 1 via folding lines, and first side panels 2 and 2 are respectively extended from the side panels 2 and 2 via folding lines. Extend the end panels 3, 3 and the second end panels 8, 8;
A lid panel 4 is extended from the other side of at least one of the side panels 2 and 2 via a fold line, and a hexahedral bottom wall is formed by the bottom panel 1 and is erected from the bottom panel 1 via a fold line. The side panels 2 and 2 and the end panels 3, 3, 8 and 8 erected from the side panels 2 and 2 via broken lines are connected to each other to form a hexahedral side wall and an end wall, and at least one side. The upper wall of the hexahedron is formed by the lid panel 4 bent through the folding lines of the panels 2 and 2.

Here, the packaging box according to the present invention is provided with lid flaps 6, 6 from the first end panels 3, 3 via folding lines.
Are extended, and a pair of slits 15, 15 facing each other across the center are formed on the fold line side of the lid flaps 6, 6 with the first end panels 3, 3. Further, the insertion flap 1 is inserted from the second end panels 8 and 8 through a folding line.
3, 13 are extended. This insertion flap 13, 13
Has a central portion 16, 16 connected to the second end panels 8, 8 via a fold line, and both side portions 17, 17 connected to both sides thereof, and the both side portions 17, 17 are the second end panels. Panels 8, 8 are separated. And lid flap 6,
6 is inserted into the inside of the lid panel 4, and the insertion flap 1 is inserted into the slits 15, 15 of the lid flaps 6, 6.
Both sides 17, 17 of 3, 13 are inserted from inside to outside.

In such a packaging box, the first end panels 3, 3 and the second end panels 8, 8 are connected by the insertion flap 1
3, 13 and are connected by engagement of lid flaps 6, 6,
Do not separate from each other. For this purpose, first and second end panels 3, 3, extending from both side panels 2, 2, respectively.
8, 8 are securely connected, and a strong end structure is obtained.
Moreover, since the insertion flap 13 is inserted into the pair of slits 15, 15 of the lid flaps 6, 6, the both sides 17, 17 separated from the second end panel 8 are securely connected by the so-called anchor effect. can get. In this case, an intermediate portion separating the pair of slits 15, 15 of the lid flaps 6, 6 is a tongue-shaped projection 14, 14, and the central portion 1 of the insertion flap 13, 13 is formed by the projection 14, 14.
If the members 6 and 16 are pressed from above, the insertion flaps 13 and 13 can be prevented from coming off from the slits 15 and 15.

Further, by the engagement of the insertion flaps 13, 13 with the slits 15, 15, the lid flaps 6, 6 are held so as not to hang down. For this reason, since the lid flaps 6 and 6 firmly support the lid panel 4, the load applied on the lid flap 4 is securely received. Thereby, the load resistance from the upper surface is improved. Further, the bottom flaps 10, 10 attached to the upper surface of the bottom panel 1 are extended from at least one of the first end panels 3, 3 and the second end panels 8, 8 via a fold line to thereby provide a bottom surface. Since the bottom panel 1 and the bottom flaps 10 and 10 distribute and support the load even from the side, high load resistance is obtained. And such a packaging box can be easily assembled manually without using staples, glue or the like.

[0012]

Embodiments of the present invention will now be described specifically and in detail with reference to the drawings.
FIG. 6 shows a state of a blank before assembling a packaging box. Such a blank is made by punching a paperboard such as a corrugated board and providing a folding line. In the figure, broken lines are indicated by broken lines.

In the following description, the up and down directions will be used unless otherwise specified in the drawings.
As shown in FIG. 5, the vertical relationship is based on the state of being assembled as a box. The same applies to the upper surface, the lower surface, and the like. Further, in the following description, the long side of the box is referred to as a “side face” and the short side is referred to as an “end face”.

As shown in FIG. 6, the bottom panel 1 forming the bottom wall of the box is a rectangular shape which is long in the left and right directions in FIG. Side panels 2, 2 are extended via folding lines provided along a pair of long sides of the bottom panel 1. In FIG. 6, the lower side panel 2 is lower in height than the upper side panel 2 by the thickness of one blank.

In FIG. 6, the upper side of the upper side panel 2 is a fold line, and the lid panel 4 extends from this fold line. The width of the lid panel 4, that is, the vertical dimension in FIG. 6 is substantially the same as that of the bottom panel 1. In FIG. 6, left and right end sides of the upper side panel 2 are fold lines, and first end panels 3, 3 extend from the fold lines. The height of this first end panel 3,3, ie FIG.
, The height in the up-down direction is slightly lower than the side panels 2 and 2, and the lower side, which is a fold line, is higher than the fold line between the side panel 2 and the bottom panel 1 by almost the thickness of one blank. The width of the first end panels 3, that is, the dimension in the left-right direction in FIG. 6 is slightly smaller than the width of the bottom panel 2. Oval pointing holes 12, 12 are formed in the center of the first end panels 3, 3 on the upper side.

The upper side of the first end panels 3, 3, ie, the upper side in FIG. 6, is a fold line, and the lid flaps 6, 6 extend from the fold line. Lid flaps 6, 6
6, that is, the vertical dimension in FIG. 6 is different between the left and right sides, but may be the same. A pair of slits 15, 15 are provided on both sides of the central portion of the lid flaps 6, 6 on the fold line side, that is, orthogonally to the lower side in FIG. 6. Portions of the slits 15, 15 along the fold line extend to both sides and are perforated. This slit 1
The middle part that separates 5, 15 is a tongue-shaped projection 14, 1
4, so that a pair of slits 15, 15
Has a substantially concave shape.

The lower side of the first end panels 3, 3, ie, the side opposite to the side where the lid flaps 6, 6 are extended is a fold line, and the bottom flaps 10, 10 are formed through this fold line.
Is extended. As already mentioned, the fold line between the first end panels 3, 3 and the bottom flaps 10, 10 is approximately one blank higher than the fold line between the side panels 2 and the bottom panel 1. . Gradients are formed on both sides of the bottom flaps 10, 10 so that the width gradually decreases toward the tip.

In FIG. 6, the lower side of the lower side panel 2 is a fold line, and a narrow lid supporting flap 5 extends through the fold line. The left and right side edges in FIG. 6 of the side panel 2 are folded lines, and the second end panels 8 extend from the folded lines through the folded lines. The height of the second end panels 8, that is, the vertical dimension in FIG. 6 is slightly lower than the first end panels 3. The width of the second end panels 8, 8 is substantially the same as that of the first end panels 3, 3. Second end panel 8,
An oval pointing hole 12, 12 is drilled in the upper center of the 8, and this pointing hole 12, 12 corresponds to the pointing hole 12, 12 of the first end panel 3, 3. Position.

The upper side of the second end panels 8, 8, that is, the center on the lower side in FIG. 6, is a fold line, from which the insertion flaps 13, 13 are extended. The insertion flaps 13, 13 are composed of a central portion 16 connected to the central portion of the upper side of the second end panels 8, 8 via the folding line, and both side portions 17, 17 extending from both sides of the central portion 16. Has become. That is, the insertion flap 13 is connected to the second end panels 8 and 8 only at the central portion 16 via a fold line, and both side portions 17 and 17 are connected to the second end panels 8 and 8.
Not connected to 8. A fold line is formed between the central portion 16 and both side portions 17 and 17 extending on both sides thereof to bend the space therebetween. The position of the boundary portion between the central portion 16 and both side portions 17 extending on both sides thereof and the interval thereof correspond to the position and interval of the slits 15 of the lid flaps 10, 10.

When assembling a packaging box using such a blank, each of the panels and flaps is bent from the broken line shown by the dotted line in FIG. First, the second end panels 8, 8 on both sides of the lower side panel 2 in FIG. 6 are bent inward through folding lines. Further, the bottom flaps 10, 10 extending from the second end panels 3, 3 are bent inward through the folding lines. Subsequently, the side panel 2 is bent from the upper folding line in FIG. 6 of the bottom panel 1 to stand up, and the end panels 3, 3 on both sides of the side panel 2 are placed on the near side of FIG. Bend. As a result, the upper side panel 2 and the first end panels 3 connected to it in FIG. 6 stand up. At this time, the first end panels 3, 3
The bottom flaps 10, 10 bent from are inserted between the second end panels 8, 8 and both end edges of the bottom panel 1 and rest on both end portions of the bottom panel 1.

Next, in FIG. 6, the lower side panel 2 is raised from the bottom panel 1, and the second end panels 8, 8 are attached to the inside of the first end panels 3, 3. Next, the insert 13
The first and second end panels 3,3,8,8 and the lid flaps 6,6 are connected by the engagement of the first and second end panels 3,3,8,8 with the slits 15,15 of the lid flaps 6,6. FIG. 1 shows that the first and second end panels 3, 8 at the lower left end in FIG. 1 and the lid flap 6 are already connected, and the end panels 3, 8 at the upper right end in FIG. And only the lid flap 6 is not connected.

A procedure for connecting the first and second end panels 3, 8 and the lid flap 6 at the upper right end in the state shown in FIG. 1 will be described. First, the second end panel 8 is bent inward from the side panel 2 along a fold line. Further, the bottom flap 10 is bent from the first end panel 6 at the fold line, and then the first end panel 3 is folded from the side panel 2 at the fold line.
The bottom flap 10 is inserted into the inside of the box from the lower side of the second end panel 8, the bottom flap 10 is placed on the upper surface of the end of the bottom panel 1, and the first end panel 3 is bent. On the outside of the second end panel 8. This state is shown in FIG.

In this state, the first and second end panels 6, 8
Are overlapped with each other. The pointing holes 12, 12 are used for hanging a finger when the packaging box is transported manually. Also, the second end panel 8
The fold line between the central portion 16 of the insertion flap 13 and the side portions 17, 17 of the insertion flap 13 corresponds to the position of the slits 15, 15 of the lid flap 6.

Next, while bending both sides 17, 17 of the insertion flap 13 extending from the second end panel 8 outward, insert the insertion flaps into the slits 15, 15 of the lid flap 6 from the inside to the outside. Unplug. This state is shown in FIG. Thereafter, the lid flap 6 is bent inward. As a result, the insertion flap 13 is also bent together with the lid flap 6, and the state shown in FIG. 4 is obtained. In this state, the insertion flap 1
3 and the slits 15, 15 connect the first and second end panels 3, 8 to each other and cover the lid flap 6 to the second end panel 8 inside the first end panel 3. Are connected and supported. For this reason, the structure of the end of the box is strengthened.

Since the lid flap 6 is supported by the insertion flap 13 and held at the position of the upper surface of the box, its tip does not hang down. In addition, insertion flap 13
Of both sides 17 and 17 of the slit 1 of the lid flap 6
The first and second end panels 3 and 8 and the lid flap 6 do not shift due to the so-called anchor effect. In addition, since the projections 14 press the center portion 16 of the insertion flap 13 from above, the insertion flap 13 does not easily come out of the slits 15. Needless to say, the lower left ends in FIGS. 1 to 3 are assembled in the same manner, but these ends are assembled simultaneously or alternately. In this state, the preparation for storing the article in the packaging box is completed.

Finally, the upper surface of the packaging box is closed. First, from the state shown in FIG. 4, the lid supporting flap 5 is bent inward from the one side panel 2 along a fold line. Thereafter, the lid panel 4 is bent inward from the other side panel along the folding line, and the lid panel 4 is placed on the lid supporting flap 5 and the lid flaps 6. This closes the top surface of the box as shown in FIG.

In this state, the lid panel 4 is not only supported on the side of the box by the lid supporting flap 5 but also on the lid flaps 6, 6 particularly at the end of the box. The load applied to the box 4 is distributed to the four sides of the box by the lid panel 4, the lid supporting flap 5, and the lid flaps 6, 6, so that the load resistance can be improved. In particular, at the end of the bottom panel 1 facing the lid flaps 6, 6, since the bottom flaps 10, 10 ride on the end of the bottom panel 1, the load is efficiently dispersed, and the high strength is achieved. A box is obtained.

[0028]

As described above, according to the present invention, it is possible to obtain a packaging box that is easy to assemble and that does not loosen or disconnect the side panels from each other. As a result, the packaging box is assembled without using special tools at a flower farm or the like that uses the packaging box,
Goods can be packed. Also, even if it is stacked in multiple stages,
Since the packaging box is not deformed or crushed, it is easy to handle, and packaging with high transport efficiency and storage efficiency can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a packaging box according to the present invention in which one end is not assembled.

FIG. 2 is a perspective view showing a state in which one end of an example of the packaging box according to the present invention is partially assembled.

FIG. 3 is a perspective view showing a state in which one end of the example of the packaging box according to the present invention is further assembled.

FIG. 4 is a perspective view showing a state where one end of an example of the packaging box according to the present invention is assembled and the upper surface of the box is to be closed;

FIG. 5 is a perspective view showing a state where one end of the packaging box according to the present invention is assembled and the upper surface of the box is closed.

FIG. 6 is a plan view of an expanded state showing an example of a blank of a packaging box according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom panel 2 Side panel 3 1st end panel 4 Lid panel 8 2nd end panel 10 Bottom flap 13 Insert flap 14 Projection 15 Slit 16 Center part of insert flap 17 Both sides of insert flap

[Procedure amendment]

[Submission date] September 20, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Claims (3)

[Claims] 1. Side panels (2) and (2) are respectively extended from two pairs of opposite sides of the bottom panel (1) via folding lines, and the folding lines are formed from the side panels (2) and (2). Through the first end panels (3) and (3) and the second end panels (8) and (8), respectively, and from at least one side panel (2) and the other side of (2). Lid panel through folding line (4)
Are extended, and the bottom panel (1) forms a hexahedral bottom wall, and the side panels (2), (2) and the side panel (2) are erected from the bottom panel (1) via a fold line. ), (2)
An end panel (3) standing up through a broken line from
(3), (8), and (8) are connected to each other to form a hexahedral side wall and an end wall, and at least one side panel (2);
In the packaging box forming the upper wall of the hexahedron by the lid panel (4) bent through the folding line of (2), a lid flap (3) is formed from the first end panels (3) and (3) through the folding line. 6) and (6) are extended, and a pair of the lid flaps (6) and (6) are opposed to each other along the folding line with the first end panels (3) and (3) with the center therebetween. Slit (1
5) and (15) are formed, and the flaps (1) are inserted from the second end panels (8) and (8) via a fold line.
3), (13) is extended, and this insertion flap (13),
(13) has a central portion (16), (16) connected to the second end panels (8), (8) through a fold line, and two side portions (17), (17) connected to both sides thereof. Having both sides (17), (17) said second end panel (8),
(8), lid flap (6),
(6) is inserted inside the lid panel (4), and the slits (15), (1) of the lid flaps (6), (6) are inserted.
5) A packaging box, wherein the insertion flaps (13) and (13) have both sides (17) and (17) inserted from inside to outside. 2. An intermediate portion separating the pair of slits (15), (15) of the lid flaps (6), (6) is a tongue-shaped projection (14), (14). 14),
The packaging box according to claim 1, characterized in that the (14) presses the central portions (16), (16) of the insertion flaps (13), (13) from above. 3. An upper surface of the bottom panel (1) is attached to at least one of the first end panels (3) and (3) and the second end panels (8) and (8) via a fold line. 3. The packaging box according to claim 1, wherein the bottom flaps (10) are extended.