JPS5924654Y2 - Expanded cardboard box - Google Patents

Description

[Detailed description of the invention] This invention relates to an expanded cardboard box that is assembled from a single piece of thick paper such as cardboard, and has corner receiving pieces at the corners in the assembled state, so it can be stacked in multiple stages. In addition, the lid piece and the handle piece connected to this lid piece can be folded to the bottom back of the box as necessary to enable display with the lid open, and the handle piece can be used to transport the box when the lid is closed. Moreover, it is characterized in that it can be folded thinly and stored when not in use.

Examples of this invention will be described below based on the drawings.

Figure 1 shows a developed diagram of the cardboard box of this invention.
A side wall piece 3a is attached to each side of the bottom piece 1 formed in a rectangular shape via a valley fold line 2 shown by a broken line.

3b, 3C, and 3d are connected, and corner receiving pieces 1, which will be described later, are provided on both upper sides of one of the opposing side wall pieces 3a and 3b.
A reinforcing piece 6 is connected via a retaining slit 4 and a valley fold line 5 for inserting an engaging tongue piece 22 protruding from the side of the reinforcing piece 6, and a valley fold line 7 is formed on the side of the reinforcing piece 6. A connecting piece 8 is connected via the connecting piece 8.

In this case, the connecting pieces 8, 8 facing each other with respect to the bottom piece 1 are formed with a connecting tongue piece 9a that engages with each other, and a connecting notch 9b into which the connecting tongue piece 9a is fitted.

Moreover, these side wall pieces 3a. A lid piece 11 is connected to the upper part of the central part of 3b via a mountain fold line 10 shown by a dashed line, and two halves symmetrical with respect to a valley fold line 12 are arranged on the free end side of the lid piece 11 so as to overlap with each other. Handle pieces 13 extending from 13' and 13' are connected via a mountain fold line 14.

In this case, gripping notches 15 and 15 are formed in each half 13' of the handle piece 13, and the handle pieces 13 are provided with grip notches 15 and 15 that match each other when bent along the valley fold line 12. A cutout portion is formed in the groove portion 12, which cooperates to form a triangular engagement notch 16 when overlapped along the valley fold line 12.

On the other hand, a corner receiving piece 18 is connected to the upper sides of the other opposing side wall pieces 3C and 3d via a valley fold line 17, and an inner wall piece 20 is connected to the center part via a valley fold line 19.
are connected to each other, and in this case, an engaging tongue piece 22 is provided protruding from the side of the corner receiving piece 18 via the valley fold line 21, and the engaging tongue piece 22 is cut and raised from the valley fold line 19 at the center of the inner wall piece 20. A locking piece 24 having a locking slit 23 is formed, the locking tongue piece 22 is inserted into the locking slit 4, and the handle is inserted into the locking slit 23 of the locking piece 24. Piece 1
No. 3 engagement notches 16 are adapted to be engaged.

Note that 25 has valley fold lines 26 on both sides of the side wall pieces 3a and 3b.
This is a reinforcing tongue piece that is connected via.

To assemble the cardboard box of this invention constructed as described above, first, the valley fold line 2 of one opposing side of the bottom piece 1 is assembled.
After erecting the side wall pieces 3a, 3b along the side wall pieces 3a, 3b and connecting the connecting pieces 8 connected to the reinforcing piece 6, which are bent together with the side wall pieces 3a, 3b, with the connecting tongue pieces 9a and the connecting notches 9b, (see Fig. 2) ), the other opposing side wall piece 3
C, 3d are erected along the valley fold line 2, the inner wall piece 20 and the locking piece 24 are brought into contact with the inner surfaces of the connecting pieces 8, 8, and the engaging tongue piece 22 of the corner receiving piece 18 is brought into contact with the side wall piece 3a, 3b is inserted into the engagement slit 4 provided at the upper part of the box, and corner receiving pieces 18 are extended at each corner portion to form a box (see FIG. 3).

In this case, as shown in FIG. 4, by folding the lid piece 11 and the handle piece 13 onto the back side of the bottom piece 1, the box can be displayed with the lid open, and as shown in FIG. In addition, multiple boxes can be stacked in multiple tiers.

When the box is closed and transported, the lid piece 11 and handle piece 13 bent on the back side of the bottom piece 1 are folded back toward the opening side, and the halves 13' and 13' of each handle piece 13 are folded along the valley fold line 12. Then, the locking piece 24 that was bent on the inner surface together with the inner wall piece 20 is pulled upward, and the handle piece 13 is inserted into the retaining slit 23 of this locking piece 24.
By engaging the engagement notches 16 of the container, the container can be transported with the lid closed (see FIG. 5).

As explained above, on each side of the rectangular base 1,
Side wall pieces 3A, 3B, 3C, 3 via valley fold line 2
A reinforcing piece 6 is connected to the top of both sides of one of the opposing side wall pieces 3A and 3B via a retaining slit 4 and a valley fold line. A connecting piece 8 is connected via a connecting piece 7, and a lid piece 11 is connected to the upper part of the center of the side wall pieces 3A and 3B through a mountain fold line 10, and the free end sides of the lid piece 11 overlap each other. A handle piece consisting of two halves 13', 13' which are symmetrical with respect to a valley fold line is connected via a mountain fold line 14, and one of the handle pieces is connected via a mountain fold line 14.
Each of the half holes 13' of 3 are provided with gripping notches 15, 15 that coincide with each other when folded along the valley fold line, and grip notches 15, 15 are formed on both sides of the handle piece 13 so that they cooperate when folded along the valley fold line. A notch is formed to form an engagement notch 16, and a corner receiving piece having a retaining tongue piece 22 is provided on both upper sides of the other opposing side wall pieces 3C and 3D via a valley fold line 17, respectively. In addition to being connected, there is a valley fold line 19 in the center.
An inner wall piece 20 is connected to the inner wall piece 20 via the inner wall piece 20, and a locking piece 24 having a locking slit 23 cut and raised from the valley fold line 19 is formed in the center of the inner wall piece 20. 22 can be inserted into the engagement slit, and the engagement notch 16 of the handle piece 13 can be inserted into the engagement slit 23 of the locking piece 24.
The side wall piece 3A is shaped so that it can be engaged with the side wall piece 3A.

3B is an expanded corrugated box formed by connecting reinforcing tongues on both sides via valley fold lines 26, so the corrugated box of this invention can be easily assembled by folding a piece of cardboard or other thick paper. Moreover, by folding the lid piece back to the back of the bottom piece, the items inside the box can be displayed, and the box can be stacked in multiple stages using the corner receiver pieces displayed at the corners of the box. Also, by folding back the lid piece and handle piece from the bottom piece and engaging the retaining slits of the locking piece with the engagement notches on both sides of the handle piece, it can be transported with the lid closed, making it versatile. Furthermore, since it is in a polymerized state at the corners, connections, and handles of the box, it has features such as excellent strength effects, and its utility value is remarkable.

[Brief explanation of the drawing]

Figure 1 is an exploded version of the cardboard box of this invention, Figure 2 is a perspective view of the main parts during assembly, Figure 3 is a perspective view with the lid open, and Figure 4 is a perspective view showing the bottom with the lid open. , FIG. 5 is a perspective view of the lid closed and transported. 1...Bottom piece, 3a, 3b, 3C, 3d
... Side wall piece, 4 ... Retention slit, 8
...Connection piece, 9a...Connection tongue piece, 9b
...Connection notch, 11... Lid piece, 13.
...Handle piece, 13'...Handle half-closed, 1
6... Curved engagement notch, 18... Corner receiving piece, 22
...Curved engagement tongue piece.

Claims (1)

[Scope of utility model registration request] Side wall pieces 3A, 3B, 3C, and 3D are connected to each side of the rectangular base 1 via a valley fold line 2, and engagement slits are provided at the tops of both sides of one of the opposing side wall pieces 3A, 3B. 4
A reinforcing piece 6 is connected to the side of the reinforcing piece 6 via a valley fold line 7, and a connecting piece 8 is connected to the side of the reinforcing piece 6 via a valley fold line 7. The lid pieces 11 are connected via the mountain fold line 10, and two half holes 1 symmetrical with respect to the valley fold line are provided on the free end side of the lid piece 11 so as to overlap with each other.
A handle piece consisting of 3' and 13' is connected via a mountain fold line 14, and each of the 13 half holes 13' of the handle piece has a grip notch 15 that matches each other when folded along the valley fold line. , 15 are bored, and engaging notches 16 are provided on both sides of the handle piece 13 that cooperate when overlapped by valley fold lines.
Corner receiving pieces each having a retaining tongue piece 22 are connected to both upper sides of the other opposing side wall pieces 3C and 3D via a valley fold line 17, and the center An inner wall piece 20 is connected to the part via a valley fold line 19, and a locking piece 24 having a retaining slit 23 cut and raised from the valley fold line 19 is formed in the center of the inner wall piece 20. The engagement tongue piece 22 is formed so that it can be inserted into the engagement slit, and the engagement notch 16 of the handle piece 13 can be engaged in the retention slit 23 of the locking piece 24,
Further, reinforcing tongue pieces are connected to both sides of the side wall pieces 3A and 3B via valley fold lines 26 to form an expanded corrugated box.