JP3370432B2 - Packaging box - 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 transporting articles to be packaged such as parts and products.

[0002]

2. Description of the Related Art Items to be packaged such as parts and products that are easily broken or deformed by impact, such as automobile radiator grills and resin bumpers, such as a large number of ribs and bosses on the front and back surfaces of the grill or bumper body. In the case where the protrusion or the large number of attachment members are protruded, the protrusion or the attachment member may come into contact with other obstacles and be damaged during transportation or loading / unloading work. Therefore, for items to be packaged that are easily destroyed or deformed by impact, especially large parts, use a wooden packaging box and fill a large amount of cushioning material inside the packaging box. It is interposed between and to protect the object to be packaged.

[0003]

However, although the wooden packaging box is robust, the packaging box itself is heavy and difficult to handle, and a wide space for storing it when not in use is required. To do. As the cushioning material, foamed styrol, corrugated ball paper pieces, etc. are used, but the foamed styrol is manufactured according to the shape and size of the object to be packaged and the packaging box for storing it. It has to be, and is not versatile.

In addition, foamed styrol has a high incineration temperature,
In addition, since toxic gas is generated during incineration, there is a problem in the incineration process, and corrugated ball paper pieces have no problem in that respect,
There is a problem that it is difficult to handle such as corrugated paper pieces scattered around when unpacking.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to protect an article to be packaged by the packaging box itself without using a cushioning material and to easily handle the article. Therefore, it is an object of the present invention to provide a low-cost packaging box that can be easily stored without taking up a space when it is not used and can be easily incinerated when it is no longer needed.

[0006]

In order to achieve the above-mentioned object, the present invention is characterized in that claim 1 is constructed by bending a sheet of corrugated ball paper, and a bottom plate is provided in the central portion, A side plate, a lid plate and a side flap are connected in this order to two opposite left and right sides of the bottom plate through a fold line, and both ends of the lid plate and the side flap are arranged in a direction orthogonal to the fold line. Forming a cut portion to form a bridging piece continuous with the side plate, the end plate, the cover plate, and the end flap are continuously connected in this order to the remaining two opposite front and rear sides of the bottom plate through a fold line. Then, a first insertion hole is provided in at least one of the connecting portions of the left and right lid plates and the side flaps, and a part of the side flap is cut and raised in the other side to form the first insertion hole. First plugged in to join the left and right lid plates Providing a fitting piece, the left and right bridging pieces are provided with an engaging portion that engages with each other to form a bridging portion projecting higher than the lid plate, and the side plate and the end plate are fold lines with respect to the bottom plate. Standing along, the lid plates are connected to each other to form a box main body, the side flaps are projected into the inside of the box main body, and the cross-linking pieces are connected to each other to form a cross-linking portion. It is characterized in that the portion is wrapped by the cover plate, and the end flap is inserted and fixed in the cut portion. According to a second aspect of the present invention, an auxiliary insertion piece is provided in the connecting portion of the left and right lid plates and the side flaps so as to straddle the first insertion hole, and the auxiliary insertion piece is inserted into the first insertion piece. It is characterized by having an auxiliary insertion hole. A third aspect of the present invention is characterized in that the bridging portion forms a space portion that is larger than the box-shaped cross-sectional area. According to a fourth aspect of the present invention, one or a plurality of projecting pieces are provided at the tip of the side flap.

Therefore, the box main body is constructed by erecting the left and right side plates and the front and rear end plates with respect to the bottom plate, and the first insert piece is inserted into the first insert hole to form the box main cover plate. Closing, connecting the cross-linking pieces to each other to form a cross-linking part, wrapping the cross-linking part with a cover plate, further inserting and fixing the end flaps into the cut part, packing the object to be packaged, and providing it on the lid plate The side flaps press and constrain the items to be packaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a development view of a packaging box for packaging an object to be packaged such as a radiator grill of an automobile, FIG. 2 is an explanatory view of the assembling operation of the packaging box, and FIG. 3 is a sectional view of the packaging state. Figure 1
Further, in FIG. 2, reference numeral 1 is a box main body constituted by bending one sheet of corrugated ball paper, and a rectangular bottom plate 2 is provided in the central portion.

Side plates 4 having substantially the same shape as the bottom plate 2 are formed on the two opposite left and right sides of the bottom plate 2 through first fold lines 3a and 3b.
a and 4b are continuously provided, and lid plates 6a and 6b are continuously provided to the side plates 4a and 4b through second fold lines 5a and 5b. The lid plates 6a, 6b are formed to have a half width of the bottom plate 2, and the lid plates 6a, 6b have a third fold line 7a,
Side flaps 8a and 8b are continuously provided via 7b.

The lid plates 6a, 6b and side flaps 8
The second and third fold lines 5a, 5 are provided on both ends of a, 8b.
Cutouts 9 and 9 are provided in a direction orthogonal to b, 7a and 7b, and the cutouts 9 form bridging pieces 10a and 10b continuous with the side plates 4a and 4b.

In the middle of the bridging pieces 10a, 10b, fourth fold lines 11a, 11b are formed at portions corresponding to 1/2 of the widths of the lid plates 6a, 6b.
Lateral slits 12a and 12b as engaging portions are provided on the side portion near the front end portion of 10b. The slits 12a and 12b are opposite to each other, and by engaging with each other, the pair of bridging pieces 10a and 10b are joined together to form a gate-shaped bridging portion 13.

On the remaining two opposite sides of the bottom plate 2 which are opposite to each other, an end plate 15a is provided via fifth fold lines 14a, 14b.
15b are provided in series, and the end plates 15a and 15b have a sixth
The cover plates 17a, 17 through the fold lines 16a, 16b of
b are connected to each other, and end flaps 19a, 1b are provided on the cover plates 17a, 17b through seventh fold lines 18a, 18b.
9b are continuously provided.

The end plates 15a and 15b are formed to have a height dimension from the first fold lines 3a and 3b to the fourth fold lines 11a and 11b, and the cover plates 17a and 17b are bridge pieces 10a and. Equal to the width of 10b, the end flaps 19
The a and 19b are formed slightly shorter than the end plates 15a and 15b.

Further, a plurality of slit-shaped first insertion holes are provided along the third fold line 7a in the connecting portion of the left side cover plate 6a and the side flaps 8a, and two slit-shaped first insertion holes in this embodiment. 20, 20 are provided. Further, the right side flap 8b corresponds to the first insertion holes 20 and 20,
A first insertion piece 21, 21 formed by cutting a part of it into a substantially square U-shape and raising the notch
Is provided. Then, this first insertion piece 2
By inserting 1 and 21 into the first insertion holes 20 and 20, the left and right lid plates 6a and 6b are joined together.

Further, from the cover plate 6a located in the longitudinal middle portion of the first insertion holes 20, 20 to the side flaps 8.
Narrow auxiliary insert pieces 22 and 22 are provided by making a notch in a substantially U shape so as to straddle the first inserting holes 20 and 20 across a, and raising this notch. In addition, the auxiliary insertion piece 22, at the portion of the third fold line 7b of the first insertion piece 21, 21.
Auxiliary insertion holes 23, 23 into which 22 is inserted are provided.

Further, a plurality of, in the present embodiment, three projecting pieces 24 ... Are provided in the central portions of the tip portions of the left and right side flaps 8a, 8b, and cutout portions 25, 2 are provided in the vicinity of both side portions.
5 are provided. Further, rectangular handle holes 26 are provided at appropriate places on the side plates 4a, 4b so that fingers or hooks can be hooked when carrying the packaging box.

Next, a procedure for assembling the packaging box constructed as described above and packaging a radiator grill as an article to be packaged will be described. First, with the bottom plate 2 as a reference, the side plates 4a and 4b and the end plates 15a and 15b are folded at a right angle along the first fold lines 3a and 3b and the fifth fold lines 14a and 14b to form the box main body 1. Then, a radiator grill A which is an object to be packed is housed inside the box main body 1. In this case, as shown in FIG. 3, the radiator grill A has a curved portion b having lamp mounting holes at both ends of the grill body a.
Is provided on the bottom plate 2, with the curved portion b facing upward.

Next, the lid plates 6a and 6b are folded at right angles to the side plates 4a and 4b along the second fold lines 5a and 5b.
Further, the side flaps 8a, 8b are folded at right angles to the lid plates 6a, 6b along the third fold lines 7a, 7b. Further, the bridging pieces 10a, 10b are connected to the fourth fold lines 11a, 1
Fold inward at right angles along 1b. Further, the cover plates 17a and 17b are folded at right angles along the sixth fold lines 16a and 16b, and the end flaps 19a and 19b are covered along the seventh fold lines 18a and 18b.
Fold it at a right angle to.

The side flaps 8a and 8b are attached to the cover plates 6a and 6b.
Fold at right angles to the left and right side flaps 8
a and 8b overlap each other and project into the inside of the box main body 1, and the left and right lid plates 6a and 6b are juxtaposed at the same height. In this state, insert the first insertion pieces 21, 21 into the first insertion hole 2
Auxiliary insertion pieces 22, 2 as well as 0, 20
When 2 is inserted into the auxiliary insertion holes 23, 23, the box main body 1
The upper opening is closed by the lid plates 6a and 6b.

Further, by interlocking the slits 12a and 12b of the bridging pieces 10a and 10b with each other, the pair of bridging pieces 10a and 10b are joined together to form a gate-shaped bridging portion 13. Next, the bridging portion 13 is wrapped by the cover plates 17a and 17b which are folded at right angles to the end plates 15a and 15b, and the end flaps 19a and 19b are inserted into the cut portions 9, so that the front end portions of the end flaps 19a and 19b. Is mainly box 1
, The packaging of the packaging box is completed, and at the same time, the packaging of the radiator grill A is completed. That is, the grill main body a is stored in the space of the box main body 1, and the curved portions b at both ends are stored in the space of the bridge portion 13 larger than the cross-sectional area of the box main body 1.

While assembling the packaging box in this way, the radiator
Can be packaged with Tagrill A, and has side flaps 8a,
Since 8b hangs down and projects into the inside of the box main body 1 at right angles to the cover plates 6a, 6b, the side flaps 8a, 8b can reinforce the cover plates 6a, 6b.
The strength of can be increased. Further, since projecting pieces 24, 24 are provided at the tips of the side flaps 8a, 8b, a part of the radiator grill A is pressed by the projecting pieces 24, 24 and the end flaps 19a, 19b. Therefore, the radiator grill A does not swing inside the main body 1 of the box, and the radiator grill A can be stably restrained.

Further, since the packaging box is made of a single piece of corrugated paper, it is lightweight and easy to handle, and the box main body 1 has a cushioning property, and it is necessary to use a separate cushioning material. Absent. Also, the packaging box can be assembled and packed at the same time, and the packaging box can be unfolded at the same time as unpacking.

In the above-mentioned one embodiment, the packaging box for packaging the radiator grill of the automobile has been described, but it can be applied to the packaging of any packaging object such as parts or products which are easily broken or deformed by impact. That is, the vertical, horizontal and depth dimensions of the packaging box may be set according to the size and shape of the packaged object, and the present invention is not limited to the above embodiment. In addition, the protruding length and shape of the protruding piece provided on the side flap, and the shape of the bridging portion can be arbitrarily changed depending on the shape of the object to be packaged. Alternatively, the inside of the box main body may be divided into left and right sides by the side flaps, and the two packaged objects may be stored side by side. Further, the number and size of the insert pieces and the insert holes may be arbitrarily set according to the size of the packaging box, the weight of the packaged object, etc. When using corrugated ball paper,
The buffering effect is further increased.

[0024]

As described above, according to the present invention, since the packaging box is composed of one piece of corrugated paper, it is lightweight and easy to handle, and the box main body has cushioning properties. Since it has, it is not necessary to use a separate cushioning material. Further, the packaging box can be assembled and packed at the same time, and the packaging box can be unfolded at the same time as unpacking, which facilitates packing and unpacking. Furthermore, the packaging box can be held in the assembled state simply by inserting the insertion piece into the insertion hole, and no adhesive, adhesive tape or packing string is required. Since it is made of paper, it is easy to carry and has a small storage space. In addition, the packaging box can be reused, can be used as a returnable box, and can be easily incinerated if it is damaged by repeated use, no harmful gas is generated, and there is no problem of environmental destruction.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an assembling procedure of the packaging box of the embodiment.

FIG. 3 is a cross-sectional view showing a packed state of the packing box of the embodiment.

[Explanation of symbols]

Mainly 1 box 2 Bottom plate 3a, 3b First fold line 4a, 4b Side plate 5a, 5b Second fold line 6a, 6b lid plate 7a, 7b Third fold line 8a, 8b side flaps 9 notch 10a, 10b Cross-linked piece 11a, 11b Fourth fold line 12a, 12b slit 13 Bridge 14a, 14b Fifth fold line 15a, 15b End plate 17a, 17b Cover plate 19a, 19b End flap 20 First insertion hole 21 First Insert 22 Auxiliary plug 23 Auxiliary insertion hole 24 protruding piece

Claims (4)

(57) [Claims] 1. A side plate, a cover plate and a side flap formed by bending one corrugated ball paper, having a bottom plate in the central portion, and fold lines on two opposite left and right sides of the bottom plate. While continuously connecting in this order, forming a notch in both ends of the lid plate and side flaps in a direction orthogonal to the fold line to form a bridging piece continuous with the side plate, the rest of the bottom plate. An end plate, a cover plate, and an end flap are consecutively provided in this order on two opposite front and rear sides through a fold line, and at least one of the connecting portions of the left and right lid plates and the side flaps is provided with a first One insertion hole is provided, and the other is provided with a first insertion piece that is inserted into the first insertion hole by cutting and raising a part of the side flap to connect the left and right lid plates, and the left and right bridges are formed. By engaging the pieces with each other, the lid plate Providing an engaging portion that forms a bridge portion that protrudes higher, standing up the side plate and the end plate along the fold line with respect to the bottom plate, and connecting the lid plates together to form a box main body,
The side flap is projected into the main body of the box, and the bridging pieces are further joined to each other to form a bridging portion. The bridging portion is wrapped by the cover plate, and the end flap is inserted into the notch and fixed. A packaging box that is characterized by 2. An auxiliary insertion piece is provided at a continuous portion of the left and right lid plates and the side flaps so as to straddle a first insertion hole, and the auxiliary insertion piece is inserted into the first insertion piece. The packaging box according to claim 1, wherein an auxiliary insertion hole is provided. 3. The packaging box according to claim 1, wherein the bridging portion forms a space portion larger than the cross-sectional area of the box body. 4. The packaging box according to claim 1, wherein one or a plurality of projecting pieces are provided at a tip portion of the side flap.