JPH0728091Y2 - Box for packaging - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a packaging box, and more particularly, to improvement of the structure of a packaging box formed by cutting a corrugated cardboard into a predetermined shape and assembling it.

[Prior Art] Conventionally, as a box body for cutting and assembling a corrugated cardboard into a predetermined shape and accommodating products and the like therein, the one disclosed in Japanese Utility Model Publication No. 1-26569 is known. Such a tray-shaped packaging box is difficult to assemble due to its structure, and is not suitable for assembling the packaging box on-site to directly store the harvested product, for example, packaging of agricultural products.

In addition, for example, burdock and the like are harvested in a field, subjected to a predetermined treatment, and then directly assembled into a packaging box on the site to store the burdock in the packaging box and shipped. At that time, since a plurality of packaging boxes are stacked, strength in the vertical direction is required.

[Problems to be Solved by the Invention] However, in the conventional packaging box body, the assembling work is relatively complicated and time-consuming, and therefore, it is not suitable for assembling the box body on site and directly storing the stored items. . Also,
In the case of a box structure that can be easily assembled, the strength in the longitudinal direction has not been sufficiently examined, and the strength is insufficient.

Therefore, in the present invention, in view of the problems of the conventional packaging box body, it is possible to assemble relatively easily, and it is possible to obtain sufficient strength in the vertical direction on both the side surface and the end surface. It is an object of the present invention to provide a packaging box that can be vertically stacked.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a corrugated board 10 is used.
Cut out a predetermined shape, from the bottom panel 20 constituting the bottom surface of the hexahedron of the box body side panels 21, 21 and end panels 22, 22 respectively constituting the side surface and the end surface of the hexahedron are raised,
In the packaging box body in which the lid panels 36 and 37 forming the upper surface of the box body are extended from the side panels 21 and 21, the corrugated ribs of the core material 11 in the corrugated board 10 are the side panels 21. Form each of the panels 20, 21, 22, 36, 37 so as to face the longitudinal direction,
Joining flaps 34, 35 are extended from both sides of the side panels 21, 21, and the joining flaps 34, 35 are bent toward the end face side of the box body to be connected to each other, and are inserted inside the end panels 22, 22. Provided is a packaging box body characterized by the following.

In this case, the joining flaps 34 and 35 extending from both sides of the side panels 21 and 21 are housed inside the double-formed end panels 22 and 22, respectively.

[Operation] The strength direction of the corrugated board 10 is determined by the direction of the corrugated ribs of the core material. However, the side panels 21, 21 and the end panels 22, 22 are raised from the four sides of the rectangular bottom panel 20, and the direction of the wavy ribs of the core material 11 of the corrugated board 10 is set to the side panel 21,
When the vertical direction is made on the 21 side, the corrugated ribs of the core material 11 in the end panels 22, 22 become horizontal. Then, even if the side panels 21 and 21 have high strength in the vertical direction, the end panels 22 and 22 cannot have sufficient strength in the vertical direction.

On the other hand, in the packaging box according to the present invention, the side panel is
Since the joining flaps 34, 35 are extended from both sides of 21, 21, and the joining flaps 34, 35 are bent to the end face side of the box body to be connected to each other, the joining flaps 34, 35 are inserted inside the end panels 22, 22. The corrugated ribs of the core material 11 of the joining flaps 34, 35 inserted inside the end panels 22, 22 are in the vertical direction.
Therefore, the joining flaps 34 and 35, in which the corrugated ribs of the core material 11 are in the vertical direction, are also inserted on the end surface side of the box body where the strength is insufficient, and the longitudinal strength is high on both the side surface and the end surface side of the box body. Is obtained.

Furthermore, the packaging box body can be assembled from the bottom panel 20 to the side panels.
21, 21 and the end panels 22, 22 are raised, and the joining flaps 34, 35 are bent from the side panels 21, 21 to the insides of the end panels 22, 22, and they can be joined, so that they can be easily assembled. .

In addition, the end panel in which the joining flaps 34 and 35 are formed in double
When stored inside 22, 22, the end panels 22, 22 and the joining flaps 34, 35 are integrated, and high assembly strength is obtained.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows an exploded view of a packaging box body according to the present invention formed by cutting out one corrugated board 10. The corrugated board 10 has an outer sheet 12 stretched on both sides of a corrugated core material 11, and the strength direction thereof is determined by the direction of the corrugated ribs of the core material 11. That is, the corrugated board 10 has a high second moment of area in the direction orthogonal to the wavy ribs of the core material 11, and therefore the strength of the wavy ribs against bending in the direction is extremely high against bending in the direction orthogonal thereto.

Next, the developed shape of the cut corrugated board 10 will be described. The side panel 2 that forms the side surface of the box body from the upper and lower sides in the figure of the rectangular bottom panel 20 that forms the bottom surface of the elongated box body.
End panels 22 and 22 forming the end surfaces of the box body are formed continuously from left and right ends of the bottom panel 20 in the figure through folding lines 33, 33 ,. The end panels 22 and 22 are two parallel folding lines 3 spaced at a thickness of about three corrugated board 10.
Corrugated board plates for two surfaces are connected through 3, 33, and an opening portion 42 is provided at the center thereof. Also, the side panel 2
Lid panels 36 and 37 for closing the upper surface of the box body are provided at the upper and lower sides of the drawings 1 and 21 in the figure. Of these, the lid panel 36
The cover panel 37 has a wide width so as to cover the front surface of the upper surface of the box body, and the other lid panel 37 is a narrow auxiliary member.

In addition, fold line 3 from both sides of the upper and lower side panels 21, 21 in the figure.
Joining flaps 34, 34, 35, 35 are extended through 3, 33 ..., And reinforcing flaps 38, 38 are provided above the joining flaps 34, 34 in the figure. The joining flaps 34, 35
Are formed in the vicinity of the tip end of each of the grooves.

The reference numerals 40, 40 ...
Reference numeral 41 indicates a rectangular opening for inserting and fixing the protrusion.

Next, when assembling the corrugated board 10 cut out as described above to form a packaging box, first, the side panels 21, 21 and the end panels 22, 22 are bent at the folding lines 33, 33 ... From the bottom panel 20. Start up. At the same time, the side panels that started up 21, 21
Joining flaps 34, 34, 35, 35 extending from the folding line 33,
Bend inward at 33 ... and insert the "V" -shaped grooves 39, 39 formed near the tip thereof into the "V" -shaped grooves 39, 39 of the facing flaps to connect them. further,
A rectangular opening 4 in which the reinforcing flaps 38, 38 are bent inward and the protrusions 40, 40 at their tips are formed at both ends of the bottom panel 20.
Insert into 1 and 41 and fix. Then the end panels 22, 22
The two fold lines 33, so as to cover the joining flaps 34, 34, 35, 35 and the reinforcing flaps 38, 38 on the front half of
It is folded inward at 33, and the protrusions 40, 40 at the tip thereof are inserted into the openings 41, 41 and fixed. As a result, the assembly of the box body is completed, so that the packaging box body can be obtained relatively easily. After that, for example, a long object such as burdock is housed therein, the rib panel 37 and the lid panel 36 are bent inward to cover the lid, and a plurality of layers are stacked as necessary.

FIG. 1 shows a state in which the joining flaps 34 and 35 are connected to each other. As is clear from the figure, the direction of the wavy rib of the core material of the end panel 22 is the lateral direction. The direction of the wavy ribs of the core material 11 of the joining flaps 34, 35 and the reinforcing flap 38 is the same as that of the side panels 21, 21. Therefore, the completed box body can have sufficient strength in the longitudinal direction not only on its side surface but also on its end surface. Therefore, for example, even if the packaging boxes are stacked in multiple stages, there is no inconvenience that the packaging box is crushed.

FIG. 3 attached herewith shows a packaging box according to another embodiment of the present invention. This embodiment also has basically the same structure as the embodiment shown in FIG. However, the difference from the above-mentioned embodiment is that the joining flaps 34, 34, 35, 35 extending to both ends of the side panels 21, 21 have a dogleg-shaped connecting groove as in the above-mentioned embodiment. The connecting flaps 35, 35 on one side (upper side in the figure) are sandwiched between the other flaps 34, 34 and the reinforcing flaps 38, 38 to be fixed. Further, tongue-shaped portions 43, 43 are provided at the center of the tip end portions of the reinforcing flaps 34, 34, and these are inserted into the insertion grooves 44, 44 ... Formed in the joining flaps 34, 34, 35, 35. Fix it.

Further, the front end portion of the lid panel 36 is extended upward through the fold line, and tongue pieces 45, 45 are formed on both sides of the extended portion. The tongue pieces 45, 45 are attached to the flaps 34, 34
And reinforcing flaps 38, 38 between them and the lid panel 36
To fix.

[Effect of the Invention] As is clear from the above description, the packaging box according to the present invention can be relatively easily assembled, and is suitable for easily assembling and storing agricultural products on site. Since it is possible to secure sufficient strength in the vertical direction, it is possible to stack a plurality of stages on a loading platform such as a truck.

[Brief description of drawings]

FIG. 1 is a partially enlarged perspective view including a partial cross section for explaining the structure of a packaging box according to an embodiment of the present invention, and FIG. 2 is a development view of the packaging box, FIG. 3 is a development view of a packaging box according to another embodiment of the present invention. 20 ... bottom panel, 21 ... side panel, 22 ... end panel, 33 ... fold line, 34,35 ... joint flap, 36 ... lid panel, 37 ... rib panel, 38 ... reinforcing flap, 39 ... Groove,
40 ... Projection, 41 ... Square opening, 42 ... Oval opening, 43 ...
Tongue, 44 ... Insertion groove, 45 ... Tongue

Claims (2)

[Scope of utility model registration request] 1. A corrugated board (10) is cut into a predetermined shape, and a bottom panel (20) forming a bottom surface of a hexahedron of a box body to side panels (2) forming side surfaces and end surfaces of the hexahedron, respectively.
1), (21) and end panels (22), (22) are raised, and lid panels (36), (37) that form the upper surface of the box from the side panels (21), (21) In the packaging box body in which the panel is extended, the corrugated ribs of the core material (11) in the corrugated board (10) are oriented in the vertical direction of the side panel (21). ), (22), (36), (37) are formed, and joining flaps (34), (35) are extended from both sides of the side panels (21), (21), and these joining flaps (3
A packaging box body, characterized in that 4) and (35) are bent toward the end face side of the box body and connected to each other, and are inserted inside the end panels (22) and (22). 2. In the claim 1 of the utility model registration claim, the joining flaps (34) and (35) extending from both sides of the side panels (21) and (21) are formed in double. A box for packaging, which is housed inside the end panels (22) and (22).