JP3438782B2 - Packing box structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box used for transportation and storage of articles, and more particularly to a packaging box structure capable of changing the size of an internal storage space.

[0002]

2. Description of the Related Art Conventionally, a packing box of this kind is formed of a material such as corrugated cardboard and has six surfaces inside which articles are arranged. When the volume of the articles contained in the packaging box is smaller than the volume of the packaging box and a space is formed in the packaging box, a cushioning material such as Styrofoam is packed in the space, and when the packaging box is transported and stored, The movement of stored items in the packing box is prevented.

[0003]

In the conventional packaging box, it is necessary to procure the cushioning material, and a storage place for the cushioning material is also required. Also, if the amount of cushioning material packed in the packaging box is insufficient, the stored items may move inside the packaging box during transportation of the packaging box, and abnormal noise may occur or the stored items may be damaged or deformed. is there. Further, after use, the cushioning material is often discarded without being recycled, which causes a problem of consuming a large amount of resources.

Therefore, an object of the present invention is to provide a structure of a packaging box capable of selectively forming a maximum internal space and a reduced internal space smaller than the maximum internal space according to the size of an article to be stored.

[0005]

The structure of the packaging box according to the present invention comprises a front wall (2) and a rear wall (3) facing each other, and a front wall (2) and a rear wall (3) facing each other. Right side wall formed between
(4) and the left side wall (5) and the top wall facing each other and formed between the front wall (2) and the rear wall (3) and between the left side wall (5) and the right side wall (4).
(6) and bottom wall (7). The maximum internal space (17a) is formed by the front wall (2), the rear wall (3), the right side wall (4), the left side wall (5), the top wall (6) and the bottom wall (7). Articles can be accommodated in the maximum internal space (17a). This packing box
(1) is a partition wall formed on the front wall (2) by the fold line (8a)
(8) and a step having a contact surface (9a) and a support surface (9b) formed on the rear wall (3) and the bottom wall (7) by a pair of fold lines (9c) and a pair of cut lines (9d). And a section (9). The contact surface (9a) and the support surface (9b) are folded back, and the contact surface (9a) is brought into contact with the partition wall (8) bent along the fold line (8a), and then placed inside the packing box (1). Since the reduced internal space (17b) smaller than the maximum internal space (17a) can be formed, the reduced internal space (17b) can accommodate a small-sized article. In this case, the reduced internal space (17b) having a desired size can be formed by appropriately setting the sizes of the contact surface (9a), the support surface (9b), and the partition wall (8). Further, since the mechanical strength of the partition wall (8) can be increased by supporting the partition wall (8) with the stepped portion (9), the partition of the floating motion of the articles accommodated in the reduced internal space (17b) can be partitioned. Since it can be surely prevented by the wall (8), the predetermined shape of the packaging box (1) can be held. Furthermore, since the packaging box (1) can be assembled by bending and inserting the single body without a cutout portion, workability is good.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments relating to the structure of a packaging box according to the present invention for housing a semiconductor device will be described below with reference to FIGS. For example, as is clear from FIG. 2 showing a development view of the packaging box (1) formed of corrugated paper, the packaging box structure according to the present invention forms two main surfaces (2a, 3a) facing each other. Front wall (2) and rear wall (3)
A right side wall (4) and a left side wall (5) formed between the front wall (2) and the rear wall (3), and the front wall (2) facing each other.
And a rear wall (3) and a top wall (6) and a bottom wall (7) formed between the left side wall (5) and the right side wall (4) and at least one of the two main surfaces (2a, 3a). Partition wall formed by fold line (8a)
(8) and step (9) formed over the rear wall (3) and the bottom wall (7)
It has and. Partition wall (8) provided at one end of the front wall (2)
Is an edge portion (8b) connected to the front wall (2) formed adjacent to the bottom wall (7), and an edge portion (8b) and a fold line (8) at both ends of the partition wall (8).
A break (8c) provided adjacent to the right side wall (4) between a)
Have and. Edge (2b) of front wall (2) opposite right wall (4)
A protrusion (10) is integrally formed with the protrusion. A notch (8d) that avoids the thickness of the left side wall (5) is provided in the partition wall (8) on an extension of the edge (2b) of the front wall (2).

The step portion (9) has an abutting surface (9) formed on the rear wall (3).
a) and a supporting surface (9b) formed on the bottom wall (7). A pair of cuts (9d) are formed at both ends of the contact surface (9a) and the support surface (9b), and the step (9) can be bent independently from the rear wall (3) and the bottom wall (7). it can. Abutment surface opposite the support surface (9b)
A pair of fold lines (9c) are formed at the edge of the support surface (9b) opposite to the edge of (9a) and the contact surface (9a), and the contact surface (9a) and the support surface (9b) are formed. ) And a fold line (9e) are formed. Left side wall
(5) is provided on both sides of the left inner side wall (5a) provided on the outermost side, the intermediate left side wall (5b) connected to the left inner side wall (5a), and the intermediate left side wall (5b). And a left outer wall (5c) which is provided between the middle left side wall (5b) and the rear wall (3) and has substantially the same size as the left inner side wall (5a). There is. An intermediate slit (11) is formed substantially in the center of the intermediate left side wall (5b).
The top wall (6) is provided with a front top wall (6a) and a rear top wall (6b),
Cut the tongue piece (1) on the front top wall (6a) and the front wall (2).
5) is formed. The rear top wall (6b) has a lid portion (14) including an upper slit (16) on one side. A pair of protrusions (12) are integrally formed on the edge portion (5f) of the left inner wall (5a) opposite to the left outer wall (5c). A fold line (5d) and a pair of rear wall slits (13) are formed on the same straight line near the boundary between the rear wall (3) and the left outer wall (5c).

When assembling the packaging box (1), as shown in FIG. 3, first, the left outer wall (5c) is moved along the fold line (5d) to the rear wall.
Bend at a right angle to (3), bend the left inner wall (5a) along the fold line (5e) and stack it on the left outer wall (5c) so that the pair of protrusions (12) form the rear wall slit (13). ). The bottom wall (7) is also bent at a right angle to the rear wall (3), and the left inner wall (5) that stands up the ear (7b) provided near the left side wall (5).
Inserted between a) and the left outer wall (5c), the ear (7b) provided near the right wall (4) is bent at a right angle to the bottom wall (7). In this state, the front wall (2), the rear wall (3), the right side wall (4), the left side wall (5), the top wall (6) and the bottom wall (7), the maximum internal space (17a)
Therefore, a large-sized article such as a semiconductor device can be accommodated in the maximum internal space (17a). afterwards,
As shown in FIG. 4, fold the right side wall (4) and front wall (2)
Bend along a) and make maximum internal space (17a) by the front wall (2)
Can be closed and the protrusion (10) can be inserted into the intermediate slit (11) to fix the front wall (2). Further, as shown in FIG. 7, after the front top wall (6a) is bent at a right angle to the front wall (2) along the fold line (6c), the rear top wall (6b) is along the fold line (6d). The lid portion (14) is brought into close contact with the outer surface of the front wall (2) along the fold line (14a) and then folded. Furthermore, the tongue piece (15) is inserted into the upper slit (16) to form the top wall (6), and the maximum internal space (17
Assembly of the packaging box (1) having a) is completed.

In order to form the reduced internal space (17b), as shown in FIG.
Partition wall (8) so that it is almost parallel to bottom wall (7)
After bending it at right angles to the front wall (2), as shown in Fig. 6, hit the step (9) along the fold lines (9c, 9e) so that it is parallel to the bottom wall (7). Bend the contact surface (9a) as well as the rear wall
Step along the fold line (9c, 9e) so that it is parallel to (3)
Bend the support surface (9b) of (9). Contact surface (9a) and support surface
(9b) is folded back, and the contact surface (9a) is brought into contact with the partition wall (8) that is folded along the fold line (8a) to reduce the size smaller than the maximum internal space (17a) in the packing box (1). Since the internal space (17b) can be formed, a small size article can be accommodated in the reduced internal space (17b). In this case, contact surface (9a) and support surface
By appropriately setting the sizes of (9b) and the partition wall (8), the reduced internal space (17b) of a desired size can be formed. Further, the step (9) supports the partition wall (8) to increase the mechanical strength of the partition wall (8) and reduce the internal space (17).
Since the partition wall (8) can surely prevent the articles housed in (b) from moving, the packing box (1) can be kept in a predetermined shape. Furthermore, since the packaging box (1) can be assembled by bending and inserting the single body without a cutout portion, workability is good.

The embodiment of the present invention can be modified.
For example, in the packaging box (1) shown in FIG. 9, the bottom lid (19) is integrally formed on the edge portion (7a) of the bottom wall (7) opposite to the rear wall (3) according to the second aspect of the present invention. 2 shows a packaging box according to the embodiment. After the packaging box (1) shown in FIG. 9 is assembled as shown in FIG.
As shown in 1, the bottom lid (19) is bent inward along a fold line (19a) formed between the bottom wall (7) and the bottom lid (19), and the bottom lid (19) closes the bottom. Close the upper space (20), step (9)
And the bottom wall (7) is torn from the cut (9d).
It can be prevented by (19). In this case, the bottom cover (19) is fixed to the front wall (2) with adhesive tape or the like to reinforce the mechanical strength of the partition wall (8) and the step (9) of the packaging box (1). You can

In the third embodiment of the present invention shown in FIG. 12, a step portion (9) having an expanded support surface (9b) is provided and an expanded partition wall (8) is provided. Partition wall
The extension of (8) is approximately a multiple of the width of the right side wall (4). Therefore,
By bending the partition wall (8) along the central crease line (8e) and abutting it on the stepped portion (9), a reduced space smaller than the reduced internal space (17b) can be formed. FIG. 13 shows a step
The bottom slit (22) is formed along the fold line (9c) of (9), and the tongue piece (21) formed on the bottom of the partition wall (8) is attached to the bottom slit (22) to divide the partition. Back wall (8)
It can be securely fixed to (3). Also, the positions of the front wall (2) and the right side wall (4) and the left side wall (5) can be exchanged to freely change the design of the front wall (2) by opening it to the right or left. .

In the above embodiment of the present invention, the following operational effects can be obtained. [1] Maximum internal space corresponding to the size of the stored article (18)
(17a) and a reduced internal space (1
7b) can be selectively formed on the packaging box (1). [2] The packaging box (1) having a simple structure can be easily assembled, and the assembled packaging box (1) maintains a predetermined assembly shape during transportation and is difficult to disassemble. [3] It is possible to prevent the stored article (18) from moving and deforming inside the packing box (1). [4] The mechanical strength of the partition wall (8) can be increased by supporting the partition wall (8) with the stepped portion (9). [5] The use and procurement of cushioning material can be omitted. [6] It is easy to recycle the packing box (1) after use. [7] The packaging box (1) can be formed in a lightweight and heat-insulated state by the corrugated cardboard paper that absorbs the impact from the outside. [8] The packaging box (1) can be assembled with good workability by bending and inserting the unit without the cutout portion.

[0013]

As described above, according to the present invention, since the storage capacity of the packaging box can be changed without using a cushioning material, resource saving and easy recycling can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a packaging box according to the present invention.

FIG. 2 is a plan view of a sheet in which the packaging box shown in FIG. 1 is expanded.

3 is a perspective view showing a state in which a left side wall and a bottom wall of the seat in FIG. 2 are erected.

FIG. 4 is a perspective view showing a state in which a front wall of the seat shown in FIG. 3 is closed.

5 is a perspective view showing a state in which a partition wall of the sheet shown in FIG. 4 is folded.

6 is a perspective view showing a state in which a step portion of the sheet shown in FIG. 5 is bent.

FIG. 7 is a perspective view showing a state where the front and top walls of the seat shown in FIG. 6 are bent.

8 is a perspective view showing a state in which the rear top wall of the seat shown in FIG. 7 is bent.

FIG. 9 is a plan view of a sheet in which the packaging box according to the second embodiment of the present invention is expanded.

FIG. 10 is a perspective view showing a state in which the seat shown in FIG. 9 is assembled.

11 is a perspective view showing a state where the bottom lid of the packaging box shown in FIG. 10 is closed.

FIG. 12 is a plan view of an unfolded sheet of the packaging box according to the third embodiment of the present invention having an expanded step portion.

FIG. 13 is a plan view of a developed sheet of the packaging box according to the fourth embodiment of the present invention, which is provided with a protrusion for fixing the partition wall.

[Explanation of symbols]

(1) ・ ・ Packing box, (2) ・ ・ Front wall, (3) ・ ・ Back wall, (4)
・ ・ Right wall, (5) ・ ・ Left wall, (6) ・ ・ Top wall, (7)
・ ・ Bottom wall, (8) ・ ・ Partition wall, (9) ・ ・ Step, (9a) ・ ・
Abutment surface, (9b) ... supporting surface, (17a) ... maximum internal space, (17b) ... reduced internal space, (18).
(19) ・ ・ Bottom lid, (20) ・ ・ Space above the bottom

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 5/06 B65D 5/42

Claims (6)

(57) [Claims] 1. A front wall and a rear wall facing each other, a right side wall and a left side wall facing each other and formed between the front wall and the rear wall, and the front wall and the rear wall facing each other. And a top wall and a bottom wall formed between the left side wall and the right side wall, the front wall, the rear wall, the right side wall, the left side wall,
In a packaging box in which a maximum inner space is formed by a top wall and a bottom wall, a partition wall formed by the fold line on the front wall and a partition wall formed by the pair of fold lines and a pair of cut lines on the rear wall and the bottom wall. A step portion having a contact surface and a support surface, the contact surface and the support surface are folded back, and the contact surface is brought into contact with the partition wall bent along the fold line, and inside the packing box. A structure of a packaging box characterized in that a reduced internal space smaller than the maximum internal space can be formed. 2. The partition wall has an edge portion formed on the opposite side of the front wall, and a cut formed at an end portion of the partition wall between the edge portion and the fold line. The structure of the packaging box described in 1. 3. The partition wall and the stepped portion form an upper bottom space having a volume equal to the difference between the maximum internal space and the reduced internal space, and a bottom lid having a fold line at an edge of the bottom wall. The structure of the packaging box according to claim 1 or 2, which is provided and folds the bottom lid inward along the fold line to close the space above the bottom. 4. The projection formed on the front wall is inserted into an intermediate slit formed on the left side wall, and the front wall and the left side wall are fixed to each other. Box structure. 5. The left side wall includes a left inner side wall and a left outer side wall formed to face each other, and an intermediate left side wall formed between the left inner side wall and the left outer side wall. 5. The rear wall slit formed near the boundary between the rear wall and the rear wall is fitted with a protrusion formed on the left inner wall, and the folded left side wall is fixed to the rear wall. Either one
Structure of the packaging box described in section. 6. The top wall comprises a front top wall and a rear top wall,
The front top wall is formed on an extension of the front wall adjacent to a tongue piece formed in a cut state, and the rear top wall has a lid portion including an upper slit. Box structure.