JPH11105855A - Corrugated board box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow boxes to be stacked for storage and also to allow contents to be easily taken out of a box in a lower stage by including an opening with a lid on a front side of a box-like body, providing pillar-like reinforcing parts on both inner side faces of the opening and further by making a corrugated medium direction of a corrugated board on a body side face vertical. SOLUTION: An opening is formed on a front side of a box body of the corrugated board box 1, lids 7 integrally formed with and protruding contiguously from an upper face 1b and a lower face 1c of the body are provided, and also a pair of prism-shaped reinforcing parts 2 are formed on both sides of the opening. Further, a corrugated medium direction on a side face 1a of the corrugated board box 1 is made vertical as indicated by an arrow A. Thus the box 1 can be further reinforced against a vertical load, there is little risk in crushing even if a plurality of boxes are stacked, and the boxes can be stacked in a plurality of stages. In addition, since the opening is located on the front side, it can be opened without removing the boxes on upper stages when contents are to be taken out of a box in a lower stage, so that the boxes can be used as a simple shelf.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cardboard box mainly used for packing articles.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional cardboard box 30 has an opening on the upper surface side of a box body formed of cardboard paper. The lid 31 is formed so as to protrude continuously from the left and right side surfaces 30a, and is bent to close the opening,
The junction 32 at the tip of the lid is fixed with an adhesive tape 33 and sealed. The central direction (arrow A) of the cardboard paper on the front surface 30b, the back surface and the side surface 30a side is assembled so as to be vertical, and it is sufficient for vertical load so that the boxes are not crushed when stacked. It has high strength. As shown in FIG. 8, the corrugated core 21 of the corrugated cardboard 20 is the outer cardboard 2 as shown in FIG.
2 is the direction in contact with.

[0003]

In order to store the cardboard boxes efficiently, the cardboard boxes are usually stored in a stack in the vertical direction. In such a case, the conventional cardboard box having an opening on the top side has to remove the boxes stacked on top of the box on the lower tier in order to remove an object, and open the opening. Was. If you stack the openings sideways, you can open the openings without removing the boxes stacked on top of them,
Because the direction of the center of the side of the box is horizontal, the strength against vertical loads is significantly reduced,
When boxes are stacked, the lower box is crushed by the weight of the upper box.

According to the present invention, a cardboard box which can be efficiently stored by stacking boxes, can be easily taken out from a lower box, and is not crushed by increasing the strength of the box against a vertical load. Offer boxes.

[0005]

SUMMARY OF THE INVENTION The present invention has an opening with a lid on the front side of a box-shaped main body, a columnar reinforcing portion substantially in contact with the inside of both sides of the opening, and a main body. A cardboard box characterized in that the center direction of the cardboard paper on the side surface is vertical.

[0006] Since the opening is on the front side of the box body, it is possible to open the opening without removing the boxes stacked on it when trying to take out an object from the lower box. . Then, as shown in FIG. 6, simply stacking the boxes can be used as a simple shelf. Further, since the center direction of the cardboard paper on the side surface is the vertical direction, the cardboard paper is strong against the load in the vertical direction.
If the opening is provided on the front side, the vicinity of the opening is inevitably vulnerable to the load in the vertical direction, but in the present invention, since the columnar reinforcing portion is provided almost in contact with the inside of the side surface on both sides of the opening, the opening Can also have sufficient strength.

The columnar reinforcing portion can be made of a lightweight material such as, for example, styrene foam, but it is inexpensive and reasonable to fold cardboard paper. Cardboard paper can be formed separately from the box body and attached with an adhesive or the like, but a continuous reinforcing part forming piece is integrally formed from the side of the box body and is bent inward. When formed in a columnar shape, a columnar reinforcing portion can be formed simultaneously with assembling the box body. in this case,
It is reasonable that the lid of the opening is formed so as to protrude continuously from the upper surface, or the lower surface, or the upper surface and the lower surface of the main body, and the main body, the reinforcing portion, and the lid can be formed of a completely integrated cardboard paper. .

When the reinforcing portion is formed by a reinforcing portion forming piece continuous from the side surface of the box body, an engaging protrusion is provided at the tip of the reinforcing portion forming piece, an engaging slit is provided at the original end, and the reinforcing portion forming piece is formed. If the pillar-shaped reinforcing portion is formed by bending inward to engage the engaging protrusion with the engaging slit, the pillar-shaped reinforcing portion can be easily obtained without using an adhesive. At this time, if a vertical fold line is provided on the reinforcing portion forming piece, the reinforcing portion can be easily formed by bending along the fold line. The columnar reinforcement can be triangular, quadrangular, or more polygonal, but triangular is the simplest and most stable. Therefore, the number of fold lines is two.

In the case where the reinforcing portion forming piece is provided, the box of the present invention packs the article in a state where the reinforcing portion forming piece does not form the reinforcing portion, that is, as shown in FIG. You can also. If the columnar reinforcing portion is formed in advance, the content of the box is slightly reduced, but this is advantageous from the viewpoint of the content.
In this case, after the user unpacks, the reinforcing portion forming piece is bent to form a reinforcing portion.

By providing a stopper plate over the entire width at the lower end of the opening, there is no danger that the articles in the box will fall down, and it is possible to display information about the articles in the stopper plate. The stopper plate may be a separate piece of cardboard paper or the like, but it is easily formed continuously and integrally from the lower surface of the main body, bent upward and fixed with an adhesive or the like. Further, if the lid of the opening is formed continuously from the upper surface of the main body, it can be formed integrally and is simple. If the lower end of the lid is associated with the upper end of the stopper plate when the lid of the opening is closed, the associated portion can be fixed with an adhesive tape and easily sealed when packing.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings relating to embodiments. 1 is a perspective view of a cardboard box 1 of the embodiment, FIG. 2 is a cross-sectional view of a reinforcing portion 2 of the cardboard box 1, FIG. 3 is a perspective view of a state before the reinforcing portion 2 of the cardboard box 1 is formed by bending, and FIG. FIG. 5 is a front view of the cardboard box 1 with the lid closed, FIG. 5 is a perspective view of the cardboard box 10 of the embodiment, FIG. 6 is an explanatory view of a state where the cardboard boxes 10 are stacked, and FIG. FIG. 8 is a perspective view of the state, and FIG.

[0012]

Embodiment 1 The cardboard box 1 shown in FIGS. 1 to 4 has an opening formed on the front side of the box body. A pair of triangular prism-shaped reinforcements 2 are formed on both sides of the opening. As shown in FIG. 3, the reinforcing portion 2 is formed by bending a reinforcing portion forming piece 3 continuously and integrally formed from the side surface 1a of the main body inward to form a triangular prism. The reinforcing part forming piece 3 is provided with a fold line 6 by press working so that it can be easily bent. An engaging protrusion 4 is provided at the tip of the reinforcing portion forming piece 3.
However, two engaging slits 5 are provided at the base end, and the engaging protrusions 4 are engaged with the engaging slits 5 when the reinforcing portion forming piece 3 is bent inward to form a reinforcing portion. To fix it. A pair of lids 7 are formed above and below the opening. The lid 7 is formed integrally and continuously from the upper surface 1b and the lower surface 1c of the main body, and when folded inward, as shown in FIG. 4, completely closes the opening.
A notch 8 is provided at the end of the lid 7 so that the engaging projection 4 of the assembled reinforcing portion 2 does not hit the lid.

The center direction of the side surface 1a of the cardboard box 1 is as follows.
As shown by the arrow A in FIGS. 1 and 3, since it is in the vertical direction, it is strong against vertical load. Since the columnar reinforcing portions 2 are formed on both sides of the opening, the columnar reinforcing portions 2 are further strengthened against a vertical load, and there is little possibility that the reinforcing portions 2 are stacked and crushed. Since the opening is on the front side, even when stacked in a plurality of levels, the articles can be taken out of the box in the lower level, and the articles can be arranged and stored as a simple shelf simply by stacking.

As shown in FIG. 1, the cardboard box 1 may be packed with articles in a state in which the reinforcing parts 2 are assembled, or as shown in FIG. May be packed. As shown in FIG. 4, the package is sealed by bending the lid 7 inward, closing the opening, and fixing the associated portion at the tip of the lid 7 with adhesive tape 9 or the like.

[0015]

Embodiment 2 A cardboard box 10 is constructed as shown in FIG.
An opening is formed on the front side of the box main body, and a pair of triangular prism-shaped reinforcing portions 11 are formed on both sides thereof. The reinforcing portion 11 is obtained by bending a separate piece of cardboard paper into a triangular prism shape and fixing the inside of the side surface 10a with an adhesive. The center direction of the side surface 10a of the cardboard box 10 is also vertical.

At the lower end of the opening, a stopper plate 12 is fixed over its entire width. This is the lower surface 10 of the body.
c, it is formed to protrude continuously and integrally, is bent upward, and is fixed to the reinforcing portion 11 with an adhesive. Opening lid 1
3 is formed continuously from the upper surface of the main body, so that the lower end of the lid 13 meets the upper end of the stopper plate 12 when the lid 13 of the opening is closed. When packing, it can be easily sealed by fixing the associated portions with adhesive tape.

FIG. 6 shows a state in which the cardboard boxes 10 are stacked.
Shown in It functions as a simple shelf just by being stacked, and the lid 13 can be opened from any stage to easily take out the items inside. Since the stopper plate 12 is provided, there is little possibility that the article inside falls down. The stopper plate 12 can be used as a display plate by describing the type of the inside article and the like, which is convenient for managing stored articles.

The cardboard box 10 'shown in FIG.
5 is formed. Handles 14 formed on the front and back sides are horizontally long hollows, and are mainly used when carrying cardboard boxes. The handles 15 formed on both left and right sides are vertically long hollows and are mainly used for stacking cardboard boxes. An operator puts a finger into the handle 15 to lift the cardboard box, and the front side contacts the stomach. It is convenient to hold it and stack it.

[0019]

The cardboard box according to the present invention functions as a simple shelf when stacked and stored, and the items inside can be easily taken out from any stage, so that the box packed and delivered is kept as it is. By simply stacking the items, the items can be organized and stored. Moreover, since it is strong against vertical loads, there is little possibility of collapse. Further, as in the case of the conventional cardboard box, it is possible to assemble from an integrated cardboard paper, and the manufacturing cost is almost the same as that of the conventional product.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cardboard box 1 according to an embodiment.

FIG. 2 is a sectional view of a reinforcing portion 2 of the cardboard box 1;

FIG. 3 is a perspective view of a state before a reinforcing portion of the cardboard box 1 is formed by bending.

FIG. 4 is a front view of the cardboard box 1 with a lid closed.

FIG. 5 is a perspective view of the cardboard box 10 of the embodiment.

FIG. 6 is an explanatory diagram of a state in which cardboard boxes 10 are stacked.

FIG. 7 is a perspective view of the cardboard box 10 'in a packed state.

FIG. 8 is an explanatory diagram of the direction of the center of the cardboard paper.

FIG. 9 is a perspective view of a conventional cardboard box 30.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cardboard box 2 Reinforcement part 3 Reinforcement part formation piece 4 Engagement projection part 5 Engagement slit 6 Fold line 7 Lid 8 Notch 9 Adhesive tape 10 Cardboard box 10'Cardboard box 11 Reinforcement part 12 Stopper plate 13 Lid 14 Handle 15 Handle 20 Cardboard paper 21 Core 22 Thick paper 30 Cardboard box 31 Lid 32 Meeting part 33 Adhesive tape

Claims (10)

[Claims] 1. A box-shaped main body having an opening with a lid on the front side thereof, a columnar reinforcing portion substantially in contact with the inside of the side surface on both sides of the opening, and a center direction of corrugated cardboard paper on the side surface of the main body. Cardboard box characterized by being vertical 2. The cardboard box according to claim 1, wherein the columnar reinforcing portion is formed by bending cardboard paper. 3. The cardboard box according to claim 2, wherein the columnar reinforcing portion is formed by bending inwardly a reinforcing portion forming piece formed integrally and continuously projecting from a side surface to form a columnar shape. Is formed continuously and integrally from the upper surface and / or lower surface of the main body. 4. The cardboard box according to claim 3, wherein an engaging protrusion is provided at the tip of the reinforcing portion forming piece, an engaging slit is provided at the base end, and the reinforcing portion forming piece is bent inward to engage the engaging projecting portion. A cardboard box characterized by forming a columnar reinforcing portion by engaging with a mating slit. 5. The cardboard box according to claim 3, wherein the reinforcing portion forming piece is provided with a vertical fold line, and is easily bent by the fold line to form a columnar reinforcing portion. Cardboard box 6. The cardboard box according to claim 5, wherein two fold lines are provided for each of the reinforcing portion forming pieces on one side, and the columnar reinforcing portion is formed in a triangular prism shape. 7. An opening with a lid is provided on the front side of the box-shaped main body, and a reinforcing part forming piece continuous from a side surface is integrally formed at the opening, and the reinforcing part forming piece is perpendicular to the reinforcing part forming piece. An engaging protrusion is provided at the original end portion at the fold line and the leading end portion, and the column-shaped reinforcing portion is easily bent inward at the fold line to engage the engaging protrusion with the engaging slit. The lid of the opening is formed integrally and continuously from the upper surface and / or lower surface of the main body, and the center of the cardboard paper on the side surface of the main body is vertical. Cardboard box characterized by 8. The cardboard box according to claim 7, wherein two fold lines are provided for each reinforcing portion forming piece on one side, and the formed columnar reinforcing portion is formed in a triangular prism shape. 9. A cardboard box according to claim 1, wherein a stopper plate is provided at the lower end of the opening over the entire width thereof, and the lid of the opening is formed continuously from the upper surface of the main body. Carton box 10. The cardboard box according to claim 9, wherein the lower end of the lid meets the upper end of the stopper plate when the lid of the opening is closed.