JP2799673B2 - Cardboard packing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a cushioning support for a packaged article which is extremely sensitive to an impact force, such as an electronic component, a personal computer, a video tape recorder, etc., in a packing cardboard box. For this purpose, the present invention relates to a foldable cardboard packing which plays a role in place of a conventional Styrofoam packing.

[0002]

2. Description of the Related Art The above-mentioned packing made of styrofoam is formed into an arbitrary three-dimensional block having a concave portion for fitting a packaged article by casting a foamable resin material. Further, as another packing, a packing made of corrugated cardboard, which is obtained by bonding several pieces of corrugated cardboard cut into an arbitrary shape to form a block having a desired three-dimensional shape, is also used.

[0003]

However, since styrofoam is made from petroleum, which is a finite natural resource, it should be avoided as much as possible to use it as a packaging material, which is discarded as it is for a single transportation purpose. desirable. Also, from the viewpoint of measures to dispose of municipal garbage, which is becoming more and more serious, styrofoam is bulky and expensive to transport, is not suitable for landfill, and if burned, generates high temperatures and damages the incinerator. Given the problem, the emergence of some alternatives is desired. On the other hand, the cardboard pieces are preferably made because they are made of reproducible wood, the recycled paper is easy, and the disposal problem is far less than that of Styrofoam. The work requires a lot of labor and is disadvantageous in cost, and the buffer function is insufficient. Therefore, an object of the present invention is to efficiently and inexpensively make corrugated cardboard as a material, and also have a superior cushioning function as compared with a conventional styrofoam packing and a laminated block of corrugated cardboard pieces. An object of the present invention is to provide a foldable corrugated cardboard packing in which the cushioning characteristics of each part of the packing can be adjusted freely and easily according to the shape and shape of the packing.

[0004]

In order to achieve the above object, a cardboard packing according to the present invention has a substantially rectangular parallelepiped outer shape from a single cardboard box 100, and has at least a part of a packaged article on one surface thereof. A cardboard packing 200 provided with an article supporting concave portion S to be fitted in a buffered state is configured so as to be folded up. An upright piece 2 is connected to one side via a fold A, and a gutter forming piece 3 which is bent into a laterally gutter shape with a U-shaped cross section is connected to the end of the upright piece 2 via a fold B. On the opposite side of one side of the bottom piece 1, a vertical gutter forming piece 4 which is bent in a vertical U-shape with a U-shaped cross section is continuously provided via a fold C, and the horizontal gutter forming piece 3 is provided.
And the downspout forming piece 4 are engaged with each other while being folded up in a gutter shape orthogonally to each other, and in the process of folding up the packing made of corrugated cardboard, fitting cuts 6 are formed at respective locations where the two pieces 3 and 4 interfere with each other. , 10 are provided. Then, at appropriate positions of the upstanding piece 2, the horizontal gutter forming piece 3, and the vertical gutter forming piece 4, an arbitrary shaped buffering hole for adjusting the buffering characteristic of each part of the cardboard packing 200 is provided. Good.
Further, a buffer notch of an arbitrary shape for adjusting the buffering characteristic of each part of the cardboard packing 200 may be provided at an appropriate position on the peripheral edge of the cardboard 100. Furthermore,
The upstanding piece 2 may be provided with a buckling fold D that enhances the cushioning performance of the cardboard packing 200.

[0005]

In order to fold the packing made of corrugated cardboard 200 from one corrugated cardboard 100, the upstanding piece 2 provided on one side of the substantially rectangular bottom piece 1 is erected along the fold A,
The horizontal gutter forming piece 3 connected to the end is bent into a horizontal gutter shape with a U-shaped cross section. On the other hand, the vertical gutter forming piece 4 connected to one of the opposite sides is bent in the vertical gutter shape with a U-shaped cross section, and the vertical gutter forming piece 3 orthogonal to the gutter shape is bent. The fitting cuts 6, 10 provided at locations where the two pieces 3, 4 interfere with each other are engaged with each other to form a substantially rectangular parallelepiped cardboard packing 20.
0 breaks up easily and quickly. A cross-girder structure is formed in the center of the packing, and the recess in the center portion of the packing serves as an article support recess S for buffering and supporting the packaged article. And
By connecting the horizontal gutter forming piece 3 and the vertical gutter forming piece 4 integrally via the bottom piece 1 and the upright piece 2, the folding structure of the cardboard packing 200 is strengthened and the folding is easy. Can be done quickly. Also, the standing piece 2, the gutter forming piece 3,
A buffering hole provided in the downspout forming piece 4 and a corrugated cardboard 10
By appropriately changing the shape and position of the buffer notch provided in the peripheral portion of 0, the buffer characteristics of each part of the cardboard packing 200 can be easily and simply adjusted so as to best suit the properties of the individual packaged articles. Can be adjusted freely. Further, the buckling fold D provided on the standing piece 2 causes the cardboard packing 200 to be folded.
Buffer performance is further improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to the case where an electronic circuit unit (package article) 300 housed in a box-shaped casing is packed will be described below with reference to the drawings. The packing 200 made of corrugated cardboard of this embodiment shown in FIGS. 5 and 6 which plays a role of replacing the conventional packing made of polystyrene foam can be easily and quickly folded up from a single corrugated cardboard 100 shown in FIG.

As shown in FIG. 5, a packing made of corrugated cardboard 200 whose outer shape has been folded into a substantially rectangular parallelepiped shape has a U-shaped gutter portion 200A that is folded up in a gutter shape with a U-shaped cross section and a U-shaped cross-section. A vertical gutter portion 200 </ b> B that is folded up in a gutter shape oriented in an orthogonal manner is provided. And
As shown in FIG. 7, an article support concave portion S for fitting the packaged article 300 in a buffered state is formed in the middle part of the cross-girder structure formed by the engagement.

The cardboard 100 is provided with various folds and cuts for forming the above-mentioned folding structure. Therefore, a detailed configuration of the cardboard 100 will be described below.
The middle rectangular portion of the cardboard 100 becomes the bottom piece 1 of the folded cardboard packing. On one side (left side in FIG. 1) of the bottom piece 1, an upright piece 2 is continuously provided via a fold line A. At the end of the upright piece 2, a gutter formation piece 3 for bending and forming a gutter part 200 </ b> A (see FIG. 5) having a U-shaped cross section and having a horizontal gutter shape is continuously provided via a fold B. Further, a vertical gutter forming piece 4 for bending and forming a vertical gutter part (see FIG. 5) having a U-shaped cross section and a vertical gutter shape is formed on a side of the bottom piece 1 facing the upright piece 2. It is connected via C.

The upright piece 2 is formed in the shape of a trapezoid that is widened toward the front, and is provided with a large rectangular hollow hole 5 for buffering in the middle portion thereof. In addition, the upstanding piece 2 has folds A at both ends,
Between B, buckling folds D are provided in parallel with these folds.

The width (the vertical direction in FIG. 1) of the gutter forming piece 3 is larger than that of the bottom piece 1 by a predetermined width.
Then, in order to bend the gutter formation piece 3 into the shape of a horizontal gutter part 200A having a U-shaped cross section, the middle part of the gutter formation piece 3 is made parallel to the fold B by two parallel lines. Folds E, E are provided. Near both ends of the parallel folds E, E, fitting cuts 6, 6 having both predetermined lengths are provided so as to extend over the both folds E, E and orthogonal to these cuts.

As shown in FIG. 5, both outer portions of the parallel cuts E and E are portions serving as a top wall 3a and a bottom wall 3b constituting the article supporting concave portion S. In addition, a portion 3c sandwiched between the parallel cuts E, E becomes an inner wall of the article supporting concave portion S. A buffer hollow 7 is also provided in the middle of the inner wall 3c. Further, at both ends of the rear wall 3c, trapezoidal buffer notches 8 are provided so as to straddle the top wall 3a and the bottom wall 3b, respectively. Furthermore, the four corners of the horizontal downspout forming piece 3 are cut out in a triangular shape to provide buffer notches 9.

On the other hand, the downspout forming piece 4 has a wider width than the downspout forming piece 3. The length (in the left-right direction in FIG. 1) of the vertical packing 20 is shown in FIG.
In a state where 0 is folded up, the upper end is set to a length protruding from the upper surface of the gutter 200A by a predetermined height.

[0013] In order to bend the downspout forming piece 4 into the shape of a downspout 200B having a U-shaped cross section and a vertical downspout shape, the middle portion of the downspout forming piece 4 has two parallel pipes. Fold F, F
Are provided in the length direction. The width between the folds F is slightly smaller than the width of the bottom piece 1. As shown in FIG. 5, both outer portions of the parallel folds F, F are left and right side walls 4a, 4b constituting the article supporting concave portion S. The portion 4c between the parallel folds F, F serves as a back wall of the cardboard packing 200.

At the leading edge (upper and lower ends in FIG. 1) of the side walls 4a, 4b, two fittings are provided at positions where the horizontal gutter portion 200A and the vertical gutter portion 200B interfere with each other when they are engaged with each other at right angles. Cuts 10 are provided. Also, the side walls 4a,
A semicircular buffer notch 11 is provided at each side end of 4b, and a buffer notch 9 is provided at each corner. Furthermore,
A semicircular buffering hole 12 is provided along the fold lines F, F.

Next, the operation of the above configuration will be described. In order to fold up the cardboard packing 200 from the cardboard 100, first, each fold provided on the cardboard 100 is provided with a folding habit in a direction to be sequentially described below. Thereafter, if the parallel folds F, F are bent inward while the downspout forming piece 4 is erected along the fold C, the downspout section 20 is formed.
OB is folded as shown in FIG.

Then, as shown in FIG. 4, the standing piece 2 is bent and erected along the fold line A, and the parallel cuts B are bent inward and the parallel folds E and E are bent outward. ,
The horizontal gutter part 200A is bent and formed orthogonal to the vertical gutter part 200B. Then, these two portions interfere with each other, but at the respective interference locations, the fitting cuts 6, 10
Is provided, the engagement cuts 6 and 10 are engaged with each other, and the cardboard packing 200 is extremely easily and quickly folded unlike the series of complicated explanations described above.

On one surface (the front surface in FIG. 5) of the cardboard packing 200 whose appearance has been folded into a substantially rectangular parallelepiped shape, a top 3a,
The article supporting recess S formed by the bottom wall 3b and the left and right side walls 4a, 4b meshing with each other in a cross-girder shape is opened.

Next, a method for packing a packing article 300 using two folded cardboard packings 200 and a packing cardboard box 400 will be described with reference to FIG.
First, the article supporting concave portions S of the cardboard packing 200 are fitted into the left and right ends of the packaged article 300, respectively, in the same manner as the conventional Styrofoam packing. In this state, if the packing article 300 is stored in the cardboard box 400 and the lid is closed, the packing operation is completed very simply, quickly, and reliably.

After the packing is completed, the upper and lower surfaces of the side end portion of the packaged article 300 are buffer-supported by the top wall 3a and the bottom wall 3b of the article supporting concave portion S as understood from FIG. The cardboard box 400 is effectively protected against an impact force from above and below. On the other hand, the impact force from the front-back direction of the cardboard box 400 is effectively attenuated by the fact that both end portions of the top wall 3a and the bottom wall 3b protrude outside the article supporting concave portion S. Furthermore, the impact force from the left and right direction of the cardboard box 400 is effectively attenuated because the back wall 3c is buffered and supported by the left and right side walls 4a and 4b.

Further, the top wall 3a forming the article supporting concave portion S,
Buffering holes 5, 7, 12 and buffer notches 8, provided on the bottom wall 3b, the left and right side walls 4a, 4b and the back wall 4c, respectively.
By simply changing the shape, size and forming position of the components 9 and 11, the cushioning characteristics of each part of the cardboard packing 200 are most suitable not only for the electronic component unit but also for the properties of various packing articles. Can be adjusted very easily.

The role of buffering the impact force from above and the overall strength of the cardboard packing 200 are as follows:
The upstanding piece 2 which plays a role of enhancing in cooperation with the bottom piece 1,
Due to the provision of the buckling folds D, extremely large impact forces are very effectively attenuated by the buckling of the folds. In addition, the order of the folding of the horizontal gutter 200A and the vertical gutter 200B may be any.

In the above embodiment, the object of the present invention can be achieved even if the design of the detailed structure is appropriately changed. For example,
The dimensional ratio between the positions of the corrugated cardboard packing 200 may be determined arbitrarily according to the shape and properties of the individual packaged articles 300. Further, the location where the buckling fold D is formed is not limited to the illustrated position. The corrugated cardboard may be made of plastic, or a sheet of an appropriate material may be used if necessary.

[0023]

As is apparent from the above description, the packing made of corrugated cardboard according to the present invention exhibits various excellent effects in practical use as listed below, as compared with the conventional packing made of polystyrene foam. (A) Since it can be made only by forming a fold or punching one cardboard, it can be provided at a lower cost. (B) Since storage and transportation can be performed in a compact form developed flat, storage and transportation costs are greatly reduced. (C) Contribute to waste of petroleum resources. (D) resulting from mass disposal of styrofoam;
The problem of garbage disposal can be solved. (E) By simply changing the shape and position of the upright pieces, the horizontal gutter forming pieces, the buffer hollows provided in the vertical gutter forming pieces, and the buffer notches provided in the peripheral portion of the corrugated cardboard, each of the corrugated cardboard packings is changed. The cushioning characteristics of each part can be freely adjusted so as to best suit the properties of the individual packaged articles. (F) Similarly, by simply changing the shape and position of the buffer notch provided in the peripheral portion of the corrugated cardboard, the cushioning characteristics of each part of the cardboard packing are most suitable for the properties of the individual packaged articles. Can be adjusted freely. (G) By connecting the gutter forming piece and the downspout forming piece integrally via the bottom piece and the erecting piece, the folding structure of the cardboard packing is strengthened, and the folding is easily and quickly performed. I can do it. (H) Furthermore, by the buckling fold provided on the standing piece,
The cushioning performance of the cardboard packing can be further improved. (I) Compared with a conventional cardboard packing in which a large number of cardboard pieces are bonded, a more excellent cushioning material can be provided at a lower cost.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention, in which packing made of corrugated cardboard is developed into one corrugated cardboard.

FIG. 2 is a perspective view of the same cardboard.

FIG. 3 is a perspective view showing a state in which the packing made of cardboard is begun to be folded from the cardboard.

FIG. 4 is a perspective view of the cardboard packing in a substantially folded state according to the first embodiment;

FIG. 5 is a perspective view of the same cardboard packing as viewed from the front.

FIG. 6 is a perspective view of the same cardboard packing as viewed from the back.

FIG. 7 is a perspective view showing a state in which the packing article is packed using two cardboard packings and a cardboard box.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 corrugated cardboard 200 cardboard packing 200A horizontal gutter 200B vertical gutter S article support recess S 1 bottom piece 2 upstanding piece 3 horizontal gutter forming piece 3a top wall 3b bottom wall 3c inner wall 4 vertical gutter forming piece 4a, 4b side wall 4c back wall 5 , 7, 12 Buffering hole 6,10 Fitting cut 8,9,11 Buffer notch A-C fold D Buckling fold E, F Parallel fold

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65D 57/00-59/08 B65D 81/00-81/16 B65D 5/50 101

Claims (4)

(57) [Claims] 1. A cardboard packing 200 having a substantially rectangular parallelepiped outer shape from one piece of corrugated cardboard 100 and having on one surface thereof an article supporting recess S for fitting at least a part of a packaged article in a buffered state. In the corrugated cardboard 100, a middle rectangular portion is used as a bottom piece 1, and an upright piece 2 is continuously provided on one side of the bottom piece 1 via a fold A. A gutter formation piece 3 bent in a U-shape in a horizontal cross section and having a gutter shape oriented in a horizontal direction is continuously provided through a fold B at an end of the bottom piece 1. A vertical gutter forming piece 4 bent in a vertical gutter shape is continuously provided via a fold line C, and the horizontal gutter forming piece 3 and the vertical gutter forming piece 4 are bitten while being raised in a gutter shape orthogonal to each other. During the process of folding up the cardboard packing, the two pieces 3 and 4 interfere with each other. Cardboard packing, characterized in that provided fitting cut 6,10 to position each that. 2. An arbitrary shape buffer for adjusting a buffer characteristic of each part of the cardboard packing 200 at an appropriate position of the upright piece 2, the horizontal gutter forming piece 3, and the vertical gutter forming piece 4. 2. The packing made of corrugated cardboard according to claim 1, wherein the hollows 5, 7, 12 are provided. 3. A buffer notch 8, having an arbitrary shape, for adjusting a buffer characteristic of each part of the cardboard packing 200 at an appropriate position on a peripheral edge of the cardboard 100.
The packing made of corrugated cardboard according to claim 1 or 2, wherein the packing is provided. 4. The cardboard packing according to claim 1, wherein the upstanding piece is provided with a buckling fold D for enhancing the cushioning performance of the cardboard packing. .