JPH07277370A - Foldable packing made of corrugated fiberboard - Google Patents

Abstract

PURPOSE:To provide a foldable packing made of a corrugated fiberboard, which can be easily and quickly built up by simply bending one sheet of corrugated fiberboard, and in addition, the design of which can be freely changed so that the cushioning characteristics may become most suitable for the nature of an article to be packed, and which can replace a conventional packing made of formed styrene. CONSTITUTION:A foldable packing made of a corrugated fiberboard is constituted in such a manner that in the vicinity of both ends of a packing main body 200A which is built up into a gutter shape with a U-shaped cross section from one sheet of a corrugated fiberboard, a lateral bridging packing 200B which is built up into a gutter shape with a U-shaped cross section from one sheet of a corrugated fiberboard is respectively engaged so that the lateral bridging packings 200B may stride the gutter-shaped packing main body 200A. Then, in an area which is surrounded by two lateral bridging packings 200B in the groove of the packing main body 200A, an article-supporting recessed part S being equipped with an intermediate shelf 22 to cushion-support an article to be packed is formed. At the edge end in the longitudinal direction of the packing main body 200A, an end surface piece 7 and end surface reinforcing piece to reinforce the edge end are continuously provided. Also, at the edge ends or respective folding lines of the corrugated fiberboard, or at appropriate locations along incisions, notches for cushioning are provided, and notches (b), (c) to cut off impacts are provided at locations wherein a concentrated load is applied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to buffer and support a packaged article, such as a personal computer or a video tape recorder, which is extremely sensitive to an impact force in a cardboard box for packaging. The present invention relates to a foldable corrugated cardboard packing which plays a role of a conventional foam polystyrene packing.

[0002]

2. Description of the Related Art The above-mentioned styrofoam packing is formed by casting a foaming resin material into a block body having an arbitrary three-dimensional shape with a recess for fitting a packaged article. Further, as another packing, a packing made of corrugated cardboard in which several corrugated cardboard pieces cut into an arbitrary shape are attached to each other and put together in a block body having a desired three-dimensional shape is also used.

[0003]

However, since Styrofoam is made from petroleum, which is a finite natural resource, as a raw material, it should be avoided as much as possible as a packaging material that is discarded as it is if it serves one transportation purpose. desirable. Also, from the viewpoint of measures to dispose of municipal waste, which is becoming more and more serious, Styrofoam is bulky, transport costs are high, it is not suitable for landfill, and if burned, it will generate high temperature and damage the incinerator. Having problems, the emergence of some alternative to this is desired. On the other hand, a piece made by sticking corrugated cardboard pieces is preferable because it is made from reproducible wood, recycled paper is easy to recycle, and disposal problems are far less than those of Styrofoam. The work is labor intensive and costly, and the buffer function is insufficient. Therefore, an object of the present invention is to efficiently and inexpensively use corrugated board as a material, and also to provide a cushioning function as compared with a conventional styrofoam packing or a laminated block body of corrugated board pieces. The purpose 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 freely and easily adjusted according to the shape and shape.

[0004]

In order to achieve the above object, a folding corrugated cardboard packing according to the present invention comprises a corrugated cardboard 100A having a rectangular main body 1 and a U-shaped cross section. Folded up in a gutter shape,
A packing main body 2 in which two parallel cuts 2a and 2b spaced apart from each other at a predetermined interval are provided across the gutter in a cut shape from the bottom side of the gutter.
00A and one corrugated cardboard 100B are folded up in a trough shape with a U-shaped cross section, and two parallel cuts 21 and 21 are provided at a predetermined interval and are provided across the trough in a notch shape from the bottom side of the trough. In addition, it is composed of two horizontal packings 200B formed by folding three parallel folds provided between the parallel cuts 21 and 21 to form the inner shelf 22, and each parallel cut of the packing main body 200A. By engaging the parallel cuts 21 and 21 of the lateral packings 200B with 2a and 2b, respectively, the outer shape is formed into a substantially rectangular parallelepiped, and an article support recess S for supporting the packed article 301 in a buffer state is provided on one surface thereof. The cardboard packing 200 provided was configured to be assembled. At both ends of the main body piece 1 in the longitudinal direction, end face pieces 7 that are bent inward in an L-shape and are brought into contact with the both ends in a fitted state are continuously provided through fold lines, respectively. At the end of the end face piece 7, an end face reinforcing piece 10 that is bent inwardly in an L shape may be continuously provided via a fold line. In addition, buffer cutouts 3 to 4, each having an arbitrary shape, for adjusting the cushioning performance of the packing, at the peripheral edge of the corrugated board 100A and at appropriate locations along each of the folds or cuts.
9, 24 to 27 may be provided. Alternatively, when the cardboard packing 200 and the auxiliary packing 201 are housed in a corrugated cardboard box for packaging, the impact force is directly applied to a portion contacting a corner or a ridge of the box to which a concentrated impact force is applied. In order to prevent transmission, the impact-blocking cutouts a to a along the edges of the corrugated board 100A to 100C and the folds and cuts.
d may be provided. Then, if necessary, two corrugated packings 200 made of corrugated cardboard which are arranged side by side at predetermined intervals.
, A piece of cardboard 10 for protecting both end portions of the attached packaged article 302 placed in a bridge shape between the upper surfaces (1a).
Auxiliary packings 201 that are folded up from 0C and come into contact with the both end portions may be attached.

[0005]

The corrugated board packing 200 is folded up by first folding the corrugated board 100A along the creases.
A packing main body 200A having a trough shape having a substantially U-shaped cross section and provided with two main parallel cuts 2a and 2b crossing the trough near both ends thereof is folded up. Then, cardboard 100B
When each is bent along the fold line, the cross section becomes a gutter shape with a substantially U-shaped cross section, and two parallel cuts 21 and 21 crossing the gutter.
The horizontal packing 200B provided with is folded up. During this folding process, the middle shelf 22 that cushions and supports the packaged article 301 is naturally formed in the trough. Horizontal packing 200B
Make two. Next, the horizontal packings 200B are made to straddle the gutter of the packing main body 200A, and the parallel cuts 21 and 21 are fitted to the main parallel cuts 2a and 2b on both sides, respectively, so that the outer shape is substantially reduced. The corrugated cardboard packing 200 having a rectangular parallelepiped shape and provided with an article supporting recess S on one surface of which the packaged article 301 is fitted in a buffer state is folded up. And
If the end face piece 7 and the end face reinforcing piece 10 that are continuously provided at both longitudinal ends of the main body piece 1 are bent inwardly in an L-shape and are brought into contact with both end portions in a fitted state, the both end portions are buffered. The structure is strengthened. In addition, buffer cutouts 3 to 3 provided along the peripheries of the corrugated boards 100A to 100C and along the folds or cuts.
By appropriately changing the shape, number, position, etc. of 4, 9, 24 to 27, the cushioning characteristics of each part of the corrugated board packing 200 can be easily adjusted so as to best match the strength characteristics of the individual packaged articles. And it can be finely adjusted. Alternatively, if the accessory packing article 302 is placed in a bridge shape on the upper surfaces of the two packing main bodies 200A that are laterally opposed to each other at a predetermined interval, and the auxiliary packing 201 is applied to both ends thereof,
This accessory packaged article is also reliably protected from impact force. Further, in each of the corrugated cardboards 100A to 100C, when the packing 200 made of corrugated cardboard is stored in a corrugated cardboard box for packing, a concentrated impact force is exerted on a portion which is in contact with a corner or a ridge of the box which is apt to be affected. By providing the impact cutouts a to d, it is possible to prevent the impact force from being directly transmitted to the cardboard packing 200. The same applies to the auxiliary packing 201.

[0006]

EXAMPLE An example of applying the present invention to a case in which a personal computer main body (packing article) excluding an image display section and a keyboard (accessory packaging article) of a personal computer are collectively packaged Will be described with reference to the drawings. As will be understood from FIGS. 7 and 8, the packing of this embodiment includes a personal computer body 301 in addition to the cardboard packing 200 shown in FIG. 7 for packing the personal computer body 301.
Together with an auxiliary packing 201 for protecting the keyboard 302 housed in the cardboard box 400 for packing. The corrugated cardboard packing 200 is configured by combining the packing body 200A and the two horizontal packings 200B as shown in FIG. Therefore, the specific structure of each of these components will be sequentially described.

First, the packing body 200A shown in FIG.
Is folded up from one corrugated board 100A shown in FIG. The corrugated board 100A includes a rectangular main body piece 1 that is folded up in a substantially gutter shape having a U-shaped cross section. In the longitudinal direction of the main body piece 1, at intervals corresponding to the width of the gutter, 2
Parallel folds A, A of the strip are provided over the entire length.
Both outer side portions of the parallel folds A and A are the side surfaces 1a and 1a of the folded packing body 200A, and the space between the parallel folds A and A is the bottom surface 1b of the packing body 200A.

Two main parallel cuts 2a, 2b are provided at positions near both ends of the main body piece 1 so as to straddle between the parallel folds A, A at predetermined intervals. Then, in the bottom surface 1b portion, a hole 3 is formed by cutting out between the main parallel cuts 2a and 2b, and at the center portion of the bottom surface 1b sandwiched between the inner main parallel cuts 2b and 2b. Is
The packing main body 20 is provided with a cushioning notch (hole) 4.
The buffer characteristics of 0A can be adjusted arbitrarily. or,
Notches 5 are provided at two positions on the edges of the side surfaces 1a in the width direction so as to avoid interference with the protrusion of the packaged article.

Further, the notch portion of the outer main parallel cut 2a is widened in a wedge shape to facilitate the assembling operation of the horizontal packing 200B and to cut off the widened portion for impact shock as will be described later. The cutout portion is a. The function of the impact blocking notch a will be described later. Fitting cuts 6 are provided at the respective side ends of the side surfaces 1a in the longitudinal direction.

At both ends of the bottom surface 1b of the main body portion 1, a gutter-shaped bent shape is fixed, and end face pieces 7 that reinforce the both end portions are continuously provided through folds B. The end face piece 7 is formed in a trapezoidal shape that widens in a divergent manner, and a fold line C is formed in parallel with the fold line B so that the edge side of the end face piece 7 is a bent piece 7a. At the edge of the bent piece 7a, both side surfaces 1
Fitting cut 8 to be fitted to fitting cut 6 provided in a
Are provided at two locations. Also, in the central part of this edge,
A buffer cutout 9 is provided.

Since the end face piece 7 is trapezoidal, both of the sloped portions are in the state of the corrugated cardboard packing 200 folded up, as shown by phantom lines in FIG. Will be formed.

At the end of the bent piece 7a on the right side in FIG. 1, a rectangular end face reinforcing piece 10 is connected between the fitting cuts 8 and 8 via a fold D. The end face reinforcing piece 10 is along the fold line E provided in parallel with the fold line D.
It is designed to be bent inward in an L shape.

Next, the horizontal packing 200B shown in FIG.
Is folded up from the single cardboard 100B shown in FIG. The rectangular main body piece 20 constituting the corrugated board 100B has two parallel cuts 21 and 2 each having a predetermined length in the middle portion.
1 are provided in the longitudinal direction of the main body 1 at intervals corresponding to the lateral width of the bottom surface 1b. Then, the body piece 2 is attached to both outer side portions 20a, 20a of the parallel cuts 21, 21.
The two parallel folds G, G for bending 0 into a gutter shape having a U-shaped cross section are provided in the direction orthogonal to the parallel cut 21 at substantially equal intervals between the main parallel cuts 2a, 2b. There is.

Further, in order to bend and form the inner shelf 22 for cushioning and supporting the packaged article 301 in the gutter of the horizontal packing 200B, three parallel folds H, I, between the parallel cuts 21 and 21 are formed. J is straddling. The buffer cutouts 23 are provided at a plurality of locations along the parallel cut 21 on the outer portion 20 a of the parallel cut 21. Reference numeral 24 is a buffer notch provided along the fold line H.

Further, a folded U-shaped folding piece 25 is connected to one side end of the main body piece 20 in the longitudinal direction via a folding fold K for two folds. One leg of this U-shape is
It is shorter than the other leg to adjust the cushioning characteristics of the horizontal packing 200B. Reference numeral 26 is an elongated buffer notch (a hollow) provided so as to straddle the fold K for folding in two. Two
Reference numeral 7 denotes a buffer cutout portion provided on the inner peripheral edge of the folded and folded piece 25. Although not shown, a reinforcing folding piece 25 may be provided continuously at the other end of the main body piece 20 in the longitudinal direction. In that case, a rectangular piece may be used instead of the U-shaped piece. Then, a cut is provided in a portion overlapping the parallel cut 21.

Next, the auxiliary packing 201 shown in FIG.
Is folded up from one corrugated board 100C shown in FIG. 9 or FIG. The corrugated board 100C has a substantially rectangular shape, and is provided with a folding fold L for folding in half along the longitudinal direction thereof. The length of the corrugated board 100C is two horizontal packings 200 assembled to the packing main body 200A.
The distance between B and 200B facing each other is substantially equal.

The one side portion 31 of the fold line L for folding in half
At both corners of the hem, the hem pieces 3 are bent into a C-shaped plane.
A fold line M and a cut line 33 for forming the lines 2 and 32 are provided. The hem pieces 32 are configured to protrude from both side ends of the corrugated board 100C by a predetermined length. Hem piece 32
The upper edge portion is also provided with an impact cut-out notch d as shown by the phantom line in FIG. Note that the cardboard 100C has
As shown in 0, a buffer cutout 34 may be provided at the side end portion.

Next, the operation of the above configuration will be described. In order to fold up the packing main body 200A from the corrugated board 100A, first, the main body piece 1 is moved along the parallel folds A and A in FIG.
Fold it in a gutter shape on the back side of the page. Next, when the side end pieces 7 continuously provided on both side ends of the main body piece 1 are bent toward the front side of the paper in an L-shape, respectively, the fitting notches 6 provided on the both side surfaces 1a and the bent pieces 7a are formed. 8 are meshed with each other to fix the gutter-shaped bent shape of the main body piece 1 and to reinforce both end portions of the gutter, so that the packing main body 200A is folded up easily and quickly. Then, when the end face reinforcing piece 10 is bent inwardly into an L-shape, a rectangular tubular reinforcing structure is formed at the side end of the packing body 200A together with the end surface piece 7 bent in the L shape.

Next, in order to fold up the horizontal packing 200B from the corrugated board 100B, the corrugated board 100B is bent along the parallel folds G, G in a trough shape having a U-shaped cross section. The space 21 is naturally bent along the three parallel folds H, I, and J into an L-shape to fold up the horizontal packing 200B in which the middle shelf 22 is formed in the gutter.

Next, one folded packing main body 20
To assemble the corrugated cardboard packing 200 of the form shown in FIG. 7 from 0A and the two horizontal packings 200B,
As shown in FIG. 3, the gutter-shaped packing body 200A is
With the bottom surface 1a facing upward, the parallel cuts 21 and 21 of each gutter-shaped horizontal packing 200B are simply engaged with the main parallel cuts 2a and 2b on both sides of the packing body 200A. Can be completed easily and quickly.

As shown in FIG. 7, one side (upper surface in the figure) of the personal computer body 301 is fitted to the side end portion of the step-bo packing 200 whose outer shape is folded up into a substantially rectangular parallelepiped shape. (Refer to FIG. 8) An article supporting recess S is formed to support in a buffered state. The article supporting recess S is provided in the packing main body 20.
Two horizontal packings 200B, 200B in the 0A trough
The area sandwiched between them corresponds to that.

On the other hand, the auxiliary packing 201 is obtained by stacking two pieces of the corrugated board 100C shown in FIG. 9 or FIG. 10 along the fold line L for folding and then forming the hem piece 23 along the fold line M into a planar C-shape. Just fold it up.

Next, one set of corrugated cardboard packing 20 is provided for each.
0 and auxiliary packing 201, and cardboard box 40 for packing
Using 0 and PC body 301 and keyboard 30
A method of packing 2 and 2 will be described with reference to FIG. First, to pack the PC body 301, the PC body 3 is packed in the same manner as in the conventional Styrofoam packing.
The article supporting recesses S of the cardboard packing 200 are fitted to both end portions of the cardboard box 01, and the cardboard box 4
It should be set within 00.

The keyboard 302 is mounted in a bridging manner between the top surfaces (1a, 1a) of the corrugated cardboard packings 200, 200 which are placed opposite to each other in the corrugated board box 400. Then, the auxiliary packings 201 are inserted into the gaps between both end surfaces of the keyboard 302 and the inner wall surface of the cardboard box 400 as shown in the drawing, and the hem pieces 32 bent in a V shape are attached to the keyboard 302. Abutting on the upper surface of the side end of each. Then, if the lid of the cardboard box 400 is closed, the series of packing operations is extremely simple, quick, and surely completed, unlike the series of complicated explanations given above.

As can be seen from FIG. 8, in this packed state, parallel cuts of the body piece 20 are formed on the outer sides of the upper and lower surfaces of the article supporting recess S (both side surfaces 1a, 1a of the body piece 1). Both outer side portions 20a, 20a of the 21, 21 project in a U-shaped bent state. Also, the bent piece 7a of the body piece 1
Similarly, both end portions of are also projected. Then, these protruding portions play a role of effectively damping the impact force from the vertical direction of the corrugated board box 400. This cushioning performance depends on the shape, position, and position of the cushioning notch 23 provided in the outer portion 20a.
By changing the number arbitrarily, the easiness of buckling deformation of the above-mentioned protruding portion can be easily changed.
It can be freely adjusted to best suit each property of.

Further, on the back surface of the article supporting recess S (bottom surface 1b of the main body piece 1), large buffer notches (holes) 3 and 4 are provided, and on both side surfaces 1a, the buffer notch 4 is provided. A part of it is straddled, and further, main parallel cuts 2a and 2b are provided. Therefore, when an excessive impact force is exerted, the excessive impact force is effectively attenuated by buckling deformation of the bottom surface 1b and both side walls 1a. The side end surface of the personal computer body 301 is not directly in contact with the bottom surface 1b of the article supporting recess S, but is in contact with the inner shelf 22 which is located slightly inward from the bottom surface 1b. Is prevented from being directly transmitted to the personal computer body 301.

On the other hand, from the left and right side ends of the article supporting recess S, as shown in FIG. 8, both longitudinal end portions of the main body piece 1 project in a U-shaped bent state. The side end piece 7 bent into an L shape is applied to the protruding portion in a meshed state. Therefore, the left and right side end portions also have good cushioning performance. The cushioning performance of this side end portion can be arbitrarily adjusted also by the cushioning notch 9 provided in the bent piece 7a. Further, when a larger impact resistant structure is desired in the side end portion, as shown in FIG. 8, by forming a square tube shape with the side end piece 7 and the end surface reinforcing piece 10, this requirement is satisfied. To be made.

In addition, when the cardboard box 400 is dropped or thrown while it is being handled, and a concentrated impact force is exerted on the corners and the ridges, the parts contacting these points may be touched. Due to the presence of the impact cutouts a to d, there is no fear that the concentrated impact force is directly transmitted to the corrugated board packing 200.

In the above structure, the object of the present invention can be achieved even if the detailed structure is appropriately changed in design. For example, cardboard packing 200 and accessory packing 201
The object of the present invention can be achieved even if the shape and size of the above are arbitrarily changed so as to meet the respective characteristics of various packaged items, as long as they meet the constituent features recited in the claims. In that case, the shape and the formation position of the fitting cut and the impact cutout may be determined by trial and error so that the impact force exerted on the packaged article during handling can be attenuated most effectively. The cardboard used as the packing material may be a plastic cardboard, or various other sheet materials may be used as necessary.

[0030]

As is clear from the above description, the folding corrugated cardboard packing according to the present invention exhibits various practical advantages as listed below, as compared with the conventional foam polystyrene packing. . (A) It can be provided at a lower cost because it can be made by simply providing a crease or punching on one sheet of cardboard. (B) Since it can be stored and transported in a flat and compact form, storage and transportation costs are greatly reduced. (C) Contribute to waste of oil resources. (D) It occurs with the large-scale disposal of Styrofoam,
The problem of garbage disposal can be solved. (E) Then, the position, number, shape, etc. of the cushioning pieces, the cushioning notches and the impact-blocking notches are appropriately changed, and the height positional relationship between the bottom surface of the packing body and the middle shelf of the horizontal packing is adjusted. The cushioning characteristics of the packing can be freely and extremely easily changed so as to best suit the properties of the individual packaged articles by appropriately changing the characteristics. Further, compared with the packing made by stacking the conventional corrugated cardboard pieces, the cushioning performance is remarkably superior, and the packing can be made much more efficiently and cheaply.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment in which the present invention is applied to a case where a personal computer main body and a keyboard are packaged together, and a packing main body is unfolded on one cardboard.

FIG. 2 is a perspective view showing a state in which the packing main body starts to be folded up.

FIG. 3 is a perspective view of the packing main body that has been folded up.

FIG. 4 is a plan view showing a state in which the horizontal packing is spread on one cardboard as above.

FIG. 5 is a perspective view showing a state in which the horizontal packing is started to be folded up.

FIG. 6 is a perspective view of the folded horizontal packing as above.

FIG. 7 is a perspective view of the assembled corrugated cardboard packing.

FIG. 8 is a perspective view showing a usage state of the packing.

FIG. 9 is a plan view of the same as above, in which the auxiliary packing is developed on one cardboard.

FIG. 10 is a plan view showing a state in which another auxiliary packing is developed on one corrugated cardboard.

FIG. 11 is a perspective view of the auxiliary packing that has been folded up.

[Explanation of symbols]

 200 Corrugated board packing 201 Auxiliary packing 100A, 100B, 100C Corrugated board 200A Packing body 200B Horizontal packing S Article support recess 1 Body piece 1a Both side walls 1b Bottom surface 2a, 2b Main parallel cuts 3, 4, 9 Buffer cutouts (holes ) 5 cutouts 6,8 fitting cuts 7 end face pieces 7a bent pieces 10 end face reinforcing pieces 20 main body pieces 20a both outside portions 22 middle shelf 23-27 buffer cutout portion 31 one side portion 32 hem piece 33 cutout 34 buffer cutout Part A Parallel fold B to F, M Fold G, H to J Parallel fold K, L Fold for double folding a to d Notch for impact isolation 301 Personal computer body (packing article) 302 Keyboard (accessory packaging article) 400 Cardboard box

Claims (6)

[Claims] 1. A single corrugated cardboard 100A having a rectangular main body piece 1 is folded up in a gutter shape having a U-shaped cross section, and two parallel cuts 2a are formed near each end thereof at predetermined intervals. , 2b is a packing main body 200A in which a trough is formed across the gutter from the bottom side of the gutter, and one corrugated board 100B is folded up into a gutter shape having a U-shaped cross section, and two strips are formed at predetermined intervals. Parallel breaks 21,21
Is provided across the gutter in a cut shape from the bottom side of the gutter, and three parallel folds provided between the parallel cuts 21 and 21 are bent to form the inner shelf 22. It is composed of a horizontal packing 200B, and each parallel cut 2a, 2b of the packing main body 200A.
The parallel cuts 21 of the lateral packing 200B on each side,
21 is engaged with each other to form a substantially rectangular parallelepiped outer shape, and a corrugated cardboard packing 200 having an article supporting recess S for supporting the packed article 301 in a buffer state on one surface thereof is assembled. Foldable cardboard packing. 2. At both ends of the body piece 1 in the longitudinal direction, L
2. A foldable corrugated cardboard packing according to claim 1, wherein end face pieces 7 that are bent inward in a letter shape and are brought into contact with both ends in a fitted state are connected to each other through folds. 3. The folding according to claim 1, wherein an end face reinforcing piece 10 which is bent inward in an L-shape is connected to the end of the end face piece 7 through a fold line. Tatami cardboard packing. 4. A cushioning notch 3 of any shape for adjusting the cushioning performance of the packing at the periphery of the corrugated board 100A and at appropriate locations along each of the folds or cuts.
4, 9, 24 to 27 are provided.
The foldable cardboard packing according to any one of 1 to 3. 5. The two corrugated cardboard packings 200, which are opposed to each other with a predetermined gap, with the article supporting recess S facing sideways.
, A piece of cardboard 10 for protecting both end portions of the attached packaged article 302 placed in a bridge shape between the upper surfaces (1a).
The foldable corrugated packing made of corrugated board according to any one of claims 1 to 4, further comprising auxiliary packings 201 which are folded up from 0C and are brought into contact with the both end portions, respectively. 6. The corrugated cardboard packing 200 and the auxiliary packing 201 are housed in a corrugated cardboard box for packing, and the impact force is applied to a portion in contact with a corner or a ridge of the box to which a concentrated impact force is applied. 6. The impact cutouts a to d are provided along the edges of the corrugated board 100A to 100C and along the folds and cuts in order to prevent the direct transmission of the shock absorbers. Foldable cardboard packing described in.