JP4139964B2 - Bottom lock simple box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a simple sealed box mainly used for transporting fruits and vegetables.
[0002]
[Prior art]
Conventionally, when shipping fruits and vegetables, JIS-Z1507 0201 type (formerly A-1 type) corrugated cardboard is easy to assemble because many boxes are assembled at the same time on the side of the producer of fruits and vegetables. A lot of boxes are used.
In this cardboard box, a rectangular four-side plate is connected in one direction, and a bottom plate and a bottom flap are connected to the bottom surface, and a top plate and a top flap are connected to the top surface in order to seal the bottom surface and the top surface of the box. This is an almost rectangular parallelepiped box, and when assembling the bottom, four connected side plates are connected in a square tube shape, the bottom plate and the bottom flap are folded inside the box, and the overlapped part is a metal U-shape. Staples were driven by a dedicated machine (called a boxer) and joined together, or fixed with adhesive tape to assemble the bottom.
[0003]
However, if it is built in advance, it is bulky and inefficient at the time of storage and transportation work. In addition, for the bottom assembly work with staples, it is necessary to prepare a staple and a driving machine for each staple, but the staple driving machine is heavy and requires force, so it is difficult to handle by a non-powerful person. There is a problem that costs increase. Furthermore, when the used box is disposed of after the product has been taken out, disassembly is not easy and there is a risk of injury when disassembling or accumulating when the metal staples remain mixed. is doing. Even when a used box is reused as waste paper for the purpose of reducing the amount of dust, it is necessary to separate and remove the metal staples, which increases the processing cost.
On the other hand, the method of sticking an adhesive tape on the bottom is time consuming and not satisfactory in terms of labor saving. Even when a used box is reused as used paper, the tape is difficult to peel off, and similarly to staples, there is a problem that it takes time to separate the adhesive tape from the box as an impurity.
[0004]
Based on the above, corrugated cardboard boxes that do not use sealing materials are being sought by agricultural producers. Distributors and retailers are also able to solve problems associated with post-processing of waste and reduce disposal work. It is requested.
[0005]
Conventionally, the invention of Patent Document 1 is known as a corrugated cardboard box that can be bottomed without using sealing materials such as staples and adhesive tapes.
The lock method of the bottom surface of the box of Patent Document 1 is provided with insertion pieces by cutting both side edges of the free end of the bottom flap, providing a U-shaped cut provided on the bottom plate, and using the inside as a suppression piece, The insertion piece was inserted into a U-shaped cut and the insertion piece protruding inside the box was pushed by the contents and bent to make it difficult to remove. However, since the insertion piece is pushed by the contents and made difficult to be bent, the insertion piece is easy to come out from the U-shaped cut when the angle of bending is shallow, and due to the heavy contents It has been pointed out that both the bottom plate and the bottom flap are bent, and the insertion piece falls out of the cut and falls out.
[0006]
[Patent Document 1]
Japanese Patent No. 3056737 Specification
[Problems to be solved by the invention]
The object of the present invention is that the bottom can be locked without using sealing materials such as tape and staples, and a strong box bottom that is difficult to slip out can be formed, and safety and simplicity are required in dismantling work etc. In response to this, a packaging box that can solve environmental problems after use is provided.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the box of the present invention employs the following means.
That is, the present invention is a corrugated cardboard box in which the bottom plate extending from the lower side of the pair of side walls and the bottom flap extending from the lower side of the pair of end walls are overlapped to seal and lock the bottom of the box,
A pair of fold lines a extending obliquely from the central point a of the flap toward both corners of the base of the flap or both side edges near the base , and downward from the central point a toward the flap free end A hook having a Y-shaped fold line consisting of a fold line B extending in the direction and a pair of insertion pieces 11a and 11b on both sides of the free end of the flap, and a groove 13 undercut in each insertion piece Forming a portion 12, and further forming a handle 14 in the center of the free end of the flap,
A pair of insertion holes 15a, 15b having a U-shape or an inverted U-shape are formed near both side edges of the bottom plate, and tongue pieces 16a, 16b are provided on the inside thereof,
Folding the bottom flaps by said oblique fold line i at the box assembled, the insertion piece 11a, 11b of the insertion opening 15a, when Komu differentially in a direction oblique to 15b, the bottom flaps from the oblique state flat state in at will to repel back, the hook portion 12 and the insertion opening 15a, 15b by superimposing the bottom plate and the bottom flap by engaging to Rukoto in the bottom lock simple sealing box, characterized in that the locking and sealing the bottom of the is there.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a blank constituting the corrugated cardboard box according to the first embodiment, and this blank is formed from one corrugated cardboard having a substantially rectangular shape.
[0013]
In the box shown in the first embodiment, a pair of opposed side walls 1 and 1 and a pair of opposed end walls 2 and 2 are alternately connected to a central portion of a blank via a broken line. A handle hole 3 is provided near the upper center of the end walls 2 and 2. Reference numeral 4 denotes a glue piece that joins the side wall 1 and the end wall 2, and is provided at the free end of one side wall 1.
The bottom plates 5 and 5 are connected to the lower sides of the pair of opposing side walls 1 and 1, and the bottom flaps 6 and 6 are connected to the lower sides of the pair of opposing end walls 2 and 2.
The top plates 7 and 7 are connected to the upper sides of the pair of opposing side walls 1 and 1, and the top flaps 8 and 8 are connected to the upper sides of the pair of opposing end walls 2 and 2.
[0014]
In this cardboard box, the adhesive strip 4 is adhered to the opposite end wall 2 and stored in a flatly folded state. When used, as shown in FIG. 2 is raised into a quadrangular cylinder, and the bottom plate 5 and the bottom flap 6 are overlapped, and without using sealing materials such as staples as will be described later, the insertion pieces 11a and 11b are aligned along the Y-shaped fold line. It can be raised and inserted into the insertion ports 15a, 15b in an oblique direction to be locked.
Hereinafter, the configuration of the bottom plate and the bottom flap, the sealing operation of the bottom surface, and the bottom assembly locking method will be described.
[0015]
A fold line is formed in the bottom flap 6 in a Y-shape, and a pair of fold lines a extending obliquely from one point a in the center of the flap toward both corners of the base of the flap or both side edges in the vicinity of the base. Then, a fold line B extending downward from the central point a toward the free end of the flap is provided, a pair of insertion pieces 11a and 11b are formed on both sides of the fold line, and the groove portion is undercut in each insertion piece. 13 is formed, and a handle 14 having a finger hole is formed at the center of the free end of the flap.
[0016]
On the other hand, the bottom plate 5 is formed with a pair of U-shaped or reverse U-shaped insertion ports 15a, 15b corresponding to the pair of insertion pieces 11a, 11b near the both side edges thereof, and a tongue on the inside thereof. The pieces 16a and 16b are provided. Incidentally, the distance A from the base (base) of the bottom plate 5 to the insertion port 15 and the depth A of the undercut groove 13 are preferably set to the same dimension.
[0017]
Since the length F0 of the bottom plate 5 and the bottom flap 6 is formed to be ½ of the width W of the end wall 2, the pair of side walls 1 and end walls 2 are raised in a rectangular tube shape. When the bottom plate 5 and the bottom flap 6 are overlapped to close the bottom surface of the box, the free end portions of the bottom plates 5 and 5 are abutted to close the entire bottom surface.
When the bottom assembly is performed, the bottom flap is bent by the oblique folding line A and the insertion pieces 11a and 11b are pushed obliquely into the insertion openings 15a and 15b. 16b is pushed inward and is inserted obliquely (diagonal direction) with respect to the insertion openings 15a and 15b, so that it can be easily inserted, and this insertion opening is not pierced or damaged (FIG. 2). ).
When the insertion pieces 11a and 11b are pushed into the insertion openings 15a and 15b, the cardboard repels and tries to return from an oblique state to a flat state (see FIG. 3). When the storage items such as vegetables are packed in the box, the insertion pieces 11a and 11b are pressed against the bottom plate 5 and, as a result, the hook portion 12 and the edges of the insertion openings 15a and 15b are locked. In addition, the bottom plate 5 and the bottom flap 6 can be overlapped to quickly seal and lock the bottom surface.
Therefore, there is no possibility of bottoming out due to the load of the stored items.
[0018]
Here, the structure of the top plate 7 and the top flap 8 of the cardboard box, the sealing operation of the top surface, and the locking method thereof will be briefly described. As shown in the figure, this embodiment is one in which the top surface can be sealed without using staples. The top sealing structure shown in the following examples is only one example in the present invention, and any other top sealing structure can be used as long as it does not require the use of staples or adhesive tape. It is possible to select the structure. In the first embodiment, the dimension F1 in the length direction of the top plate 7 and the top flap 8 is formed to be shorter than 1/2 of the width W of the side plate 2 constituting the width surface of the box (a short flap). Therefore, when the top plate 7 and the top flap 8 are overlapped to seal the top surface of the box, a window 20 through which air can flow is formed on the top surface.
[0019]
For the top plate 7 and the top flap 8, the following top surface locking mechanism is formed. That is, the top plate 7 forms a notch 7a in which the left and right corners of the free end are cut out in an L shape. On the other hand, the top flap 8 forms a pair of left and right engagement cuts 8a, 8a from the free end of the flap to the center. Also, a pair of cuts 8b, 8b are provided in a C shape from a central part of the flap to a fold line (connected fold line) connected to the end wall 2, and an end of the C-shaped cut 24 on the connecting line side is provided. The ruled lines 8c and 8c connecting the lower ends of the engagement cuts 8a and 8a are provided.
[0020]
When sealing the top surface, the top flap 8 is first bent 90 degrees with respect to the end wall 2. Next, the top plate 7 is bent 90 degrees with respect to the side plate 1 and overlapped on the top flap 8 (see FIG. 6). Next, while holding the top plate 7 with one hand, the other hand holds the center portion of the top flap 8 and pulls it upward. Then, the central portion of the top flap 8 is curved along the C-shaped cut 8b and the ruled line 8c of the top flap 8, and both ends of the top flap 8 pass through the notch portions 7a on the top plate 7. The top 7 is pulled up, and the engagement notch 8a meshes with the L-shaped notch 7a. As a result, the top 7 and the top flap 8 are engaged with each other and fixed (see FIG. 7).
[0021]
In this way, when sealing the top surface, after overlapping the top plate and the top flap, there is no need to push the top flap into the box, so there is no risk of damaging the box contents. As shown in FIG. 7, even if the top surface has an opening, the top plate 7 and the top flap 8 can be securely locked without being inadvertently opened during transportation or cargo handling.
When unpacking the top of the box, such as when checking the contents, if the central free ends of the top flaps 8 are simultaneously lifted upward, the L-shaped cutout 7a and the engagement cut 8a are disengaged. The top of the box can be opened easily.
[0022]
When the used box bottom is disassembled after the agricultural products are taken out, a handle 14 having a finger hole is formed at the center of the free end of the bottom flap 6, so that the handle 14 is hung with a finger. If the insertion pieces 11a and 11b are pulled out from the insertion openings 15a and 15b while the bottom flap 6 is bent along the folding lines A and B, the lock is released, the bottom surface is opened, and it can be easily disassembled.
[0023]
As mentioned above, although the box of the present invention has been described according to the illustrated embodiment, it is free to use the lock on the bottom surface of the box for the locking mechanism on the top surface. An example is shown in FIG.
[0024]
【The invention's effect】
As described above, in the present invention, the bottom plate or the top plate is connected to the upper and lower sides of the pair of side walls constituting the length surface, and the bottom flap or the ceiling is attached to the upper and lower sides of the pair of end walls constituting the width surface. The flaps are connected to each other, and the bottom flap or the top flap is provided with a pair of fold lines extending obliquely from one point at the center of the flap toward both corners of the base or both side edges in the vicinity of the base. While forming a pair of insertion pieces at both corners of the end, forming a hook portion having a groove portion undercut in each insertion piece, and further forming a handle portion at the center of the free end of the flap, A pair of U-shaped or inverted U-shaped insertion ports are formed near both side edges of the bottom plate or the top plate, and tongue pieces are provided on the inside thereof, and the insertion pieces are inserted by the oblique folding lines when the box is assembled. Insert diagonally to the mouth In order to lock the bottom plate or top surface by locking the bottom plate or top plate and the bottom flap or top flap by engaging the hook portion with the insertion port, lock the overlapped portion of the flap with staples. As with the case, the bottom of the box can be locked strongly.
[0025]
According to the present invention, it is possible to provide a corrugated cardboard box that does not use sealing material at all, and when a used box is discarded, there is no need to separate and remove metal staples, and the disposal work can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing a blank of a cardboard box according to a first embodiment of the present invention.
FIG. 2 is a perspective view in the middle of bottom assembly of the box of the embodiment.
FIG. 3 is a completed perspective view of the bottom assembly state.
FIG. 4 is an explanatory view showing a state when the insertion piece is inserted.
FIG. 5 is a perspective view of an opened state of the box top surface of the embodiment.
FIG. 6 is a perspective view immediately before locking the top of the box.
FIG. 7 is a perspective view showing a state in which the top surface of the box is locked.
FIG. 8 is a partial view showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side wall 2 End wall 3 Handle hole 4 Glue margin piece 5 Bottom plate 6 Bottom flap 7 Top plate 8 Top flap 11a, 11b Insert piece 12 Hook part 13 Groove part 14 Handle part 15a, 15b U-shaped or reverse U-shaped insertion port 16a , 16b Tongue piece 20 Ventilation window A, B Folding line

Claims (1)

In the corrugated cardboard box that seals and locks the bottom of the box by overlapping the bottom plate extending from the lower side of the pair of side walls and the bottom flap extending from the lower side of the pair of end walls,
A pair of fold lines a extending obliquely from the central point a of the flap toward both corners of the base of the flap or both side edges near the base , and downward from the central point a toward the flap free end A hook having a Y-shaped fold line consisting of a fold line B extending in the direction and a pair of insertion pieces 11a and 11b on both sides of the free end of the flap, and a groove 13 undercut in each insertion piece Forming a portion 12, and further forming a handle 14 in the center of the free end of the flap,
A pair of insertion holes 15a, 15b having a U-shape or an inverted U-shape are formed near both side edges of the bottom plate, and tongue pieces 16a, 16b are provided on the inside thereof,
Folding the bottom flaps by said oblique fold line i at the box assembled, the insertion piece 11a, 11b of the insertion opening 15a, when Komu differentially in a direction oblique to 15b, the bottom flaps from the oblique state flat state in return it to repel, bottom lock simple sealing box, characterized in that the locking sealed the bottom by superimposing the bottom plate and the bottom flap hook portion 12 and the insertion port 15a, and 15b by the engagement to Rukoto.

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