JP3190904U - Folding box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding box having a structure in which a box with a lid having a large volume can be easily assembled by simply folding one piece of corrugated cardboard, and moreover, the box can be easily returned to the corrugated cardboard state. SOLUTION: This folding box with a lid is made by folding up one corrugated cardboard 21 without gluing, and the left and right side walls are left and right side walls formed through cuts a on the left and right sides of the bottom piece 1. The piece 5a is erected at the left and right ends by bending the crease H and the crease J and raising them outward. Then, the front side wall 3 is erected by bending the outer wall piece 3a and the inner wall piece 3b connected to the bottom piece 1 from the central double crease E, and the upper bottom piece 2a connected to the inner wall piece 3b is overlapped with the bottom piece 1. .. Further, the rear side wall is erected by overlapping the rear side wall piece 6a connected to the outer wall piece 3a of the bottom piece 1 and the inner wall piece 7a connected to the upper bottom piece 2a. The lid is provided with an insertion piece 8 which is connected to the rear side wall piece 6a and is inserted into the fitting hole of the front side wall 3. [Selection diagram] Fig. 2

Description

  The present invention relates to a folding box with a lid that is folded from a single cardboard.

A folding box with a lid is generally a piece of corrugated cardboard that is glued to a wall piece and fixed and assembled. It is assembled and used. However, since this sticking work must be performed in another work place and takes time, there is a demand for eliminating the sticking work.
In view of this, a folding box with a lid that can be assembled only from a single cardboard by a folding operation without requiring a fixing means such as gluing has been developed (see Patent Document 1).

  The folding box of Patent Document 1 is folded up from a single cardboard, the left and right side walls are cut and raised from the bottom surface with a single wall, and the front wall piece and the bottom piece sequentially connected to the bottom surface are folded, and the bottom surface is opposed. The lid piece is connected to the side to be used. Further, the inner wall piece is positioned by providing cuts that engage with each other at the inner wall piece of the rear side wall and the ends of the left and right side walls.

Patent 2716685

The folding box of the patent document can easily complete a box with a lid by folding a single cardboard without requiring an attaching means.
However, this folding box is erected with the left and right side walls recessed inward from the side edges of the bottom piece to form an overhang, so the volume of the box is small compared to the size of the cardboard, and it is assembled Also takes time. In addition, the inner wall piece of the rear side wall and the ends of the left and right side walls are provided with cuts that engage with each other, and the cut part is likely to be damaged when the connection is broken to make a single cardboard for reuse or long-term storage.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a folding box having a structure in which a large-capacity box with a lid can be simply assembled by simply folding a single cardboard and can be easily returned to a cardboard state.

In order to achieve the above object, the folding box of the present invention is configured as follows.
That is, in a folding box with a lid made by folding up a piece of cardboard, the left and right side walls are formed on the left and right sides of the bottom piece through cuts a, and the right and left side wall pieces are folded outwardly by folding fold lines H and fold lines J. The front side wall is formed by bending the outer wall piece and the inner wall piece connected to the bottom piece from the central double fold, the upper bottom piece connected to the inner wall piece is overlaid on the bottom piece, and the rear side wall. The rear side wall piece connected to the side of the bottom piece facing the outer wall piece and the inner wall piece connected to the upper bottom piece are placed upright, and the lid is connected to the rear side wall piece and provided at the upper end of the front side wall. The insertion piece to be inserted into the fitting hole is attached.

In this specification, left and right and front and rear mean that the folding box is in a state where the lid is folded from the back to the front and closed.
In this folding box with a lid, the left and right side walls are cut and raised from the bottom piece and are erected on the side ends, and the upper bottom piece connected to the front side wall is superimposed on the bottom piece having the notch to form the bottom surface.

A slight gap is formed between the bottom surface and the left and right side walls. If it is desired to close the bottom wall, the inner wall piece that is connected to the bottom surface and overlaps the inside of the left and right side walls as described in claim 2. 11 may be connected to the left and right ends of the upper bottom piece.
When it is desired to provide flaps at the upper ends of the left and right side walls, the flap pieces 12a may be connected to the left and right side wall pieces as described in claim 3.
Further, the lid is closed by inserting the insertion piece into the fitting hole at the upper end of the front side wall, but the position and number of the insertion pieces may be appropriately determined according to the size of the folding box and the one to be accommodated.

  The folding box with a lid according to the present invention has left and right side wall pieces formed on the left and right sides of the bottom piece via a cut line a, and folds the fold line H and fold line J to raise the left and right side walls at the left and right ends. The outer wall piece and the inner wall piece connected to the bottom piece are folded up from the central double fold, and the upper bottom piece connected to the inner wall piece is superimposed on the bottom piece, and the rear side wall is opposed to the outer wall piece of the bottom piece. Since the rear wall piece connected to the side to be attached and the inner wall piece connected to the upper bottom piece are overlapped, the lid is connected to the rear wall piece, so that the lid has a large volume only by bending without sticking. Can be made easily. Moreover, the assembled folding box can be easily returned to the cardboard before folding.

It is a whole perspective view which shows embodiment of 10 A of folding boxes of this invention. Same as the above, in a development view of the folding box 10 </ b> A, it is a cardboard 21. 3 is a perspective view showing a state in the middle of assembling the folding box 10A by folding the cardboard 21 of FIG. It is a perspective view when the state in the middle of assembling is seen from the bottom back. It is the cardboard 22 in the expanded view of folding box 10B which is another embodiment same as the above. FIG. 6 is a perspective view showing a state in the middle of assembling the folding box 10B by folding the cardboard 22 of FIG. It is the cardboard 23 in the expanded view of the folding box 10C which is another embodiment same as the above. FIG. 9 is a perspective view showing a state in the middle of assembling the folding box 10 </ b> C by folding the cardboard 23 of FIG. 7.

An embodiment of a folding box of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing the entire folding box 10A, and FIG. 2 is a development view of FIG. 3 and 4 are perspective views showing a state in the middle of folding the folding box 10A.

As shown in FIG. 1, the folding box 10 </ b> A has a rectangular tray shape in which an upper portion is opened by a bottom surface 2, left and right side walls 5 erected on the left and right ends of the bottom surface 2, a front side wall 3, and a rear side wall 6. The lid 4 is provided so as to cover the upper part formed on the rear side wall 6 and connected to the rear side wall 6 side.
The left and right side walls 5 are a single wall, and are vertically erected on the left and right ends of the bottom surface 2. A joint hole 9 is provided.
In addition, the rear side wall 6 is a single wall and is erected from the bottom surface 2, but becomes a double wall when the lid 4 is closed.

The folding box 10A is assembled by folding a single cardboard 21 shown in FIG. 2 formed with folds and cuts along the fold.
The corrugated cardboard 21 has a rectangular shape with a long side. The parallel fold lines B, C, D, F, G and the double fold line E allow the cover piece 4a, the rear side wall piece 6a, the bottom piece 1, and the outer wall piece 3a to The inner wall piece 3b is divided into an upper bottom piece 2a and an inner wall piece 7a. Moreover, the insertion piece 8 is attached to the lid piece 4a via the crease A.

Then, left and right side wall pieces 5a are formed on both sides of the bottom piece 1, the outer wall piece 3a and the rear side wall piece 6a by a cut line a and a fold line J, respectively, and the left and right side wall piece 5a has a fold line H on an extension line of the fold line C and the fold line D. Are provided to the left and right ends.
The cut line a is formed from the bottom piece 1 to the outer wall piece 3a and the rear wall piece 6a. The bottom piece 1 is formed horizontally in the longitudinal direction of the corrugated cardboard 21, and is inclined 45 degrees outward to the outer wall piece 3a and the rear wall piece 6a. Each is formed to the middle. The fold line J is formed at 90 degrees from the end of the cut line a to the outer end line of the left and right side wall pieces 5 a, and the tip thereof coincides with the tip of the fold line H.

Next, the work of folding the cardboard 21 of FIG. 2 and assembling it into the folding box 10A of FIG. 1 will be described.
First, the crease A of the insertion piece 8, the crease B of the lid piece 4a, the crease C of the rear side wall piece 6a, the crease D of the bottom piece 1, and the double crease E of the outer wall piece 3a are folded toward the front side of the paper, wear. Further, the fold line F of the inner wall piece 3b and the fold line G of the upper bottom piece 2a are bent to the back side of the paper, and the fold line H and the fold line J of the left and right side wall pieces 5a are further bent to the back side of the paper surface.

As shown in FIGS. 3 and 4, the assembly is performed by holding the lid piece 4a and the upper bottom piece 2a and bending the crease C and the crease D first. Accordingly, the fold line H and the fold line J are also bent, and the rear side wall piece 6a and the outer wall piece 3a rise, and the left and right side wall pieces 5a rise.
Next, the double fold line E and the fold lines F and G are bent, and the upper bottom piece 2a is pushed into the left and right side wall pieces 5a so as to overlap the bottom piece 1. Thereby, the front wall 3 of the double wall is formed, and the inner wall 7 is erected so as to overlap the inside of the rear side wall 6, and the state shown in FIG. 1 is obtained.
FIG. 4 is a perspective view of the state when the upper bottom piece 2a is pushed onto the bottom piece 1 as seen from the back side of the bottom piece 1. The bottom piece 1 is shown with the left and right side wall pieces 5a cut away. Yes.

  On the other hand, when returning the folding box 10A in the state of FIG. 1 to the original state of the corrugated cardboard 21, simply hold the lid 4 with one hand and pull the inner wall 7 upward with the other hand and pull it back and forth. It's okay. Thereby, the state of the cardboard 21 is almost obtained.

Next, a folding box 10B according to an embodiment of the invention of claim 2 will be described with reference to FIGS.
The folding box 10B is assembled by folding a single cardboard 22 shown in FIG. 5 formed with folds and cuts along the fold. In addition, since the whole perspective view of the assembled state of the folding box 10B is almost the same as FIG. 1, it is omitted.

The folding box 10B is different from the folding box 10A described above in that an inner wall piece 11a erected from the bottom surface 2 is provided inside the left and right side walls 5.
As with the cardboard 21, the cardboard 22 is formed with folds A, B, C, D, F, G, H, J, double folds E, cuts a, b, and on the left and right sides of the upper bottom piece 2a. The inner wall pieces 11a are connected via the crease K.
The assembly of the folding box 10B is almost the same as the folding box 10A described above, except that the inner wall piece 11a is folded by folding the crease K to the back side of the paper and attaching a crease (see FIG. 6).

  Next, a folding box 10C according to an embodiment of the invention of claim 3 will be described with reference to FIGS. The folding box 10C is assembled by folding the single cardboard 23 shown in FIG. 7 in which folds and cuts are formed along the folds. In addition, the whole perspective view of the assembled state of the folding box 10C is omitted as described above.

The difference between the folding box 10 </ b> C and the folding box 10 </ b> B is that a flap 12 is attached to the upper ends of the left and right side walls 5.
As with the cardboard 22, the cardboard 23 has folds A, B, C, D, F, G, H, J, K, double folds E, and cuts b. A slit d on the inner side is provided, and a flap piece 12a is connected to the left and right side wall pieces 5a via a crease L.
The assembly of the folding box 10C is almost the same as the folding box 10B described above, and will be omitted because it can be understood from the state diagram in the middle of assembly in FIG.

A, B, C, D Fold E E Double Fold F, G, H Fold J, K, L Fold a, b, d Cut 10A, 10B, 10C Folding box 21, 22, 23 Corrugated cardboard 1 Bottom piece 2 Bottom 2a Upper bottom piece 3 Front wall 3a Outer wall piece 3b Inner wall piece 4 Lid 4a Lid piece 5 Left and right side wall 5a Left and right side wall piece 6 Rear side wall 6a Rear side wall piece 7 Inner wall 7a Inner wall piece 8 Insertion piece 11 Inner wall 11a Inner wall piece 12 Flap 12a Flap piece

Claims (3)

  In a folding box with a lid made by folding a piece of corrugated cardboard, the left and right side walls are formed on the left and right sides of the bottom piece through cuts a. The front wall is erected by bending the outer wall piece and the inner wall piece connected to the bottom piece from the central double fold, the upper bottom piece connected to the inner wall piece is overlaid on the bottom piece, and the rear side wall is the The rear side wall piece connected to the side of the bottom piece facing the outer wall piece and the inner wall piece connected to the upper bottom piece are placed upright, and the lid is connected to the rear side wall piece and is provided at the upper end of the front side wall. A folding box characterized by an insertion piece to be inserted into the joint hole.   The folding box according to claim 1, wherein inner wall pieces (11a) are connected to left and right side ends of the upper bottom piece and are erected on the inner sides of the left and right side walls.   The folding box according to claim 2, wherein a flap piece 12a is connected to the left and right side wall pieces to form a flap inward from the top of the left and right side walls.

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