JP3510064B2 - Cardboard packing material and packing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric appliance or the like having a box structure whose casing portion is relatively strong, such as a refrigerator and a dishwasher / dryer. The present invention relates to a corrugated board packaging material and a packing method that enable safe and reliable packaging without using a corrugated board box and a polystyrene foam packing.

[0002]

2. Description of the Related Art Large appliances such as refrigerators have been used in the past.
It was customary to pack using a wooden frame made of a combination of wooden boards and timber. Since then, with the remarkable improvement in the strength and cushioning properties of corrugated board, even large refrigerators and the like have come to be packed using corrugated board boxes. When packing in a corrugated cardboard box, in order to protect it from strong impacts during transportation and handling, the polystyrene foam packing and block with small pieces of corrugated cardboard are attached to the corners of the packaged item. The paper packing of the shape was applied.

[0003]

However, the wooden frame is
It takes a lot of time and effort not only to make it, but also to pack and unpack it. And now it's becoming precious, but wasting wood is also a problem. On the other hand, the styrofoam packing used together with the corrugated cardboard box also wastes petroleum resources that may be depleted, and also causes various troublesome problems at the time of disposal. Therefore, as a result of various trials and errors concerning a more rational packing method that can avoid such problems, in the case of a packaged article having a strong box structure as a whole product such as a refrigerator, , It was found that even if the entire packaged goods are not necessarily put in a cardboard box, they can be sufficiently protected from external force and impact force while being received during transportation and handling.

Further, the applicant of the present application has for quite a long time developed a technique for folding a cushioning material for packaging having cushioning performance which can replace a polystyrene foam packing from a single cardboard easily and quickly. Has provided various applied products to the market.

Therefore, an object of the present invention is to provide an electric appliance or the like having a box-like structure with a relatively strong casing portion, without using a conventional wooden frame, cardboard box, or styrofoam packing. It is an object of the present invention to provide a corrugated cardboard packaging material and a packaging method capable of safely and reliably packing only a limited amount of corrugated cardboard.

[0006]

In order to achieve the above object, a packing method using a corrugated cardboard packing material according to the present invention is a tray-shaped main body having a double-walled peripheral wall. , Each of which is folded up from one corrugated cardboard, and the height of which is lower than that of the main body, and a plurality of vertical gutter-shaped or prismatic vertical packings or top packings, which are folded from one corrugated cardboard, respectively. By arranging the bottom packing or the top packing in an appropriate arrangement inside the tray-shaped main body, a tray-shaped packing material having a partial double bottom is assembled, and at the time of this assembly, The bottom packing or the top packing is meshed or fitted to the inner wall portion of the main body portion having a double peripheral wall to fix the assembled state of the tray-shaped packing material, and the tray-shaped packing material, The bottom surface of the box-shaped packaged article and Each of the corrugated and ridge-shaped ridge-protecting members, which are covered with the double-bottomed portions on the respective top surfaces and are applied to the respective ridges in the longitudinal direction of the packaged article. It is characterized in that the upper and lower ends are inserted into the insertion holes provided in the respective corner portions of the set of tray-shaped packing materials.

The cardboard packing material according to the present invention is 1
Folded from a single cardboard 101A (101B),
A tray-shaped main body A1 (B1) having a double peripheral wall, and a single corrugated board 102 for disposing on the bottom surface of the main body.
A (102B) or one cardboard 104A (104
The tray-shaped packing material 200A is folded up from B) into a rectangular gutter shape or a rectangular tube shape, and a plurality of bottom packings A2 (A3) or top packings B2 (B3) whose height is lower than that of the main body. Or, it is configured so that 200B is assembled,
In the corrugated board 101A (101B), double wall forming pieces 2 to 5 which are bent in a U-shape or a U-shape in cross section are continuously provided on four sides of a rectangular central surface 1 occupying the central portion thereof, and face each other 1
A strip-shaped connecting piece 13 to be superposed on the other pair of double wall forming pieces 2 and 3 opposite to each other is connected to both ends of the pair of double wall forming pieces 4 and 5, and overlaps in the overlapping state. The tip of each of the pair of connecting pieces 13, 13 is provided with an engaging portion and an engaged portion that engage with each other.
(102B) or the corrugated board 104A (104B)
Is provided with a plurality of folds for bending into a rectangular gutter shape or a rectangular tube shape. Then, the lower portions of the inner wall surfaces 2b and 3b of the double wall forming pieces 2 and 3 may be inserted into the cuts 28 provided on the top surface 21a of the bottom surface packing A2 (A3). Also, the corrugated board 102A (102B)
It is preferable that a reinforcing piece 22 to be superposed on the side wall surface of the corner gutter is continuously provided at a side end of the main body piece 21 having the fold line. The corrugated cardboard 104A (104B) is a rectangular tube forming piece 4 that is bent in a gutter-like shape on the opposite sides in the width direction of the rectangular bottom surface 41 occupying the central portion thereof to form the small-angle tube body 40.
It is preferable that 2 and 43 are connected in series through folds, and an end face sealing piece 47 and an insertion piece 47a that close the open cylindrical end of the small-angle cylindrical body 40 are connected in series on opposite sides in the longitudinal direction. Further, the tray-shaped packaging material 200A includes the main body portion A1.
Is attached to the top surfaces 2a to 5a of the double peripheral wall, or is attached to the auxiliary packing 200D that is formed into a square tube shape by bending from a single corrugated board 105 for placement on the bottom surface of the main body. In the corrugated board 105, square tube forming pieces 42, 43 for forming the small-angle cylinder bodies 40, 40 in a parallel bent shape are continuously provided on one of opposite sides of a rectangular bottom surface 41. Four
It is advisable to form an end face sealing piece 47 and an inserting piece 47a, which are fitted to the open cylindrical end of the small-angle cylindrical body 40, on the other side opposite to each other. Alternatively, the small-angle tubular body 40 may be formed by cutting out an intermediate portion of the small-angle tubular body 40 except for the bottom surface 41 in a notch shape, and the end-face blocking piece 47 and the inserting piece 47a may be connected to the missing end.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings, regarding an embodiment in which a dishwasher / dryer is packaged. The inventor of the present application has repeatedly studied the method of packing the dishwasher / dryer as reasonably as possible using the minimum necessary packing materials, and as a result, this product having a strong box structure has It has been understood that it is sufficient to cover the bottom surface portion, the top surface portion, and each ridge in the vertical direction with the corrugated cardboard packaging material of the present invention, without needing to store the whole in a corrugated cardboard box.

Therefore, in the corrugated board packaging material of this embodiment, as shown in FIG. 1, there is a fitting recess S1 into which a bottom portion of a dishwasher / dryer (hereinafter referred to as a packaging article 300, not shown) is fitted. Tray-shaped packing material 200A provided on the upper surface side
And a tray-shaped packaging material 200B having a fitting recess S2 (not visible in FIG. 1, see FIG. 31) into which the top surface portion of the packaging article 300 is fitted, and each vertical edge of the packaging article 300. It consists of a combination with four ridge protection materials 200C that apply to the part.

Then, the upper and lower ends of each ridge protection member 200C are tightly fitted into the L-shaped insertion holes 7 provided at the four corners of the upper and lower surfaces of the tray-shaped packing materials 200A and 200B, respectively. The fitting and contacting states of are fixed.

First, the structure of the lower tray-shaped packing material 200A will be specifically described. A tray-shaped packing material 200A whose appearance is shown in FIG. 16 includes a main body A1 (see FIGS. 1 and 13) folded up in a tray shape from the single corrugated board 101A shown in FIGS. As shown in FIG. 6, a bottom packing A2 folded up in a gutter shape from one corrugated board 102A shown in FIG. 5 and one corrugated board 1 shown in FIG.
From 02B, as shown in FIG. 8, it is combined with a bottom packing A3 that is folded up in the shape of a gutter.

As shown in FIG. 2, the corrugated board 101A is
Double-wall forming pieces 2 and 3 are continuously provided on the left and right sides (in the figure) of the rectangular center surface 1 through folds A, and double-wall forming pieces 4 are formed on the upper and lower sides of the center surface 1. , 5 are connected in series through folds B, respectively.

Double wall forming pieces 2 and 3 having a substantially symmetrical shape
Is provided with parallel folds C1 and C2 for forming a double side wall by bending in a U-shaped cross section. An L-shaped cut 6 is formed near both ends of the top surfaces 2a and 3a of the double side wall.
Is provided. When the L-shaped bent piece 6a sandwiched between the L-shaped cut 6 and the parallel fold C1 is bent downward, the result shown in FIG.
As shown in FIGS. 6 and 17, the L-shaped insertion hole 7 for tightly inserting the lower end of the ridge protection material 200C is formed.

The inner wall surfaces 2b, 3 of the double wall forming pieces 2, 3
Notches 8 are provided at two locations at a predetermined interval on the lower end of b. Further, the inner wall surface 2b is provided with a slit-shaped insertion hole 9, and the double wall forming piece 3 is provided with a square hollow hole 10 extending across both sides of the parallel fold C2.

The double wall forming pieces 4 and 5 having the symmetrical shape are provided with parallel folds D1 and D2 for bending the U-shaped cross section to form double side walls. The double wall forming pieces 2 and 3 are located near both ends of the double wall forming pieces 4 and 5.
Slit-shaped cuts 11 for inserting both end portions of the inner wall surfaces 2b and 3b are provided respectively. Further, at the lower ends of the inner wall surfaces 4b and 5b of the double wall forming pieces 4 and 5, the lateral bending piece 1 is formed.
2 are connected in series via a fold line E.

Further, the outer wall surface 4c of the double wall forming pieces 4 and 5,
At both ends of 5c, the four corners of the peripheral wall of the main body A1 are connected to each other, and the outer wall surfaces 2c of the double wall forming pieces 2 and 3,
Band-shaped connecting pieces 13 that play a role of reinforcing along the inner side of 3c are connected to each other through folds. Then, in a state where each connecting piece 13 is bent, as shown in FIG. 12 and FIG. 13, at one end of one pair of connecting pieces 13, 13 which overlap with each other, an engaging protrusion 13a is provided. The other side is provided with an engagement hole 13b so that they are engaged with each other.
Also, the inner wall surfaces 4b, 5b and the top surface 4 of the double wall forming pieces 4, 5
Four corner reinforcing pieces 14 for reinforcing the four corner portions of the peripheral wall of the main body portion A1 are continuously provided at both ends of a and 5a via folds.

Next, in order to fold up the bottom packing A2,
The corrugated board 102A shown in FIGS.
It is composed of a main body piece 21 provided with 1 and F2, and a reinforcement piece 22 continuous with one edge in the width direction through a fold line G. On the top surface 21a of the main body piece 21 bent in the shape of a square gutter, a support piece 23 for supporting the top surface 21a is provided with a U-shaped cut 24 for forming a downward cut and raised shape, and a fold H. .

At the center of the fold line H, there is provided a U-shaped cut 26 for forming a locking projection 25 when the fold line is bent, as shown in FIG. I am letting you. In addition, slit-shaped cuts 28, folds I, and cuts 27a are formed at both ends of the top surface 21a in the longitudinal direction so that the spacer pieces 27 are bent obliquely downward. Further, cuts 28 a extending toward the cut 28 are also provided from both side ends of the support piece 23.

Further, a U-shaped cut 29 is also provided in the middle of the parallel fold F1, and the fold F1 is absent between the cuts. As a result, when the parallel fold line F1 is bent, as shown in FIG. 6, the overhanging top surface 30 extends horizontally from the other side end of the top surface 21a.

As shown in FIG. 6, the auxiliary piece 22 is folded in two along the fold line J and the bottom packing A2.
This is to reinforce this side wall along one side wall surface 21b. The auxiliary piece 22 is provided with a rectangular hole 22b for receiving and supporting the overhanging top surface 30 of the main body piece 21 and forming a notch 22a so as to extend across both sides of the fold line J.

Next, the bottom packing A3 which is folded up from the corrugated board 102B shown in FIG. 7 into the form shown in FIG.
Is almost the same except that the shape thereof is symmetrical with the bottom packing A2, and therefore the duplicate description will be omitted. The bottom packings A2 and A3 having the same thickness have a thickness of
It is thinner than the height of the main body portion A1 by a predetermined dimension. Then, the top surface 21a becomes a support surface of the packaged article 300 (see FIG. 39).

The edge protection member 200C is shown in FIG. 11 by bending the strip-shaped corrugated cardboard 103 shown in FIGS. 9 and 10 at a right angle along a fold line K provided at the longitudinal center thereof. It will fold up into the The corners of the corrugated board 103 are rounded so that they can be easily inserted into the L-shaped insertion holes 7. Further, along the fold line K, cut lines k having a predetermined length are provided at predetermined intervals to facilitate bending.

Next, the procedure for assembling the tray-shaped packing material 200A will be described with reference to FIGS. First, the corrugated board 102A shown in FIGS.
1 and F2 are bent at right angles and two folds G and J are folded into two folds, respectively, and the bottom packing A2 shown in FIG. Similarly, the bottom packing A3 shown in FIG. 8 is folded up from the cardboard 102B shown in FIG.

Next, as shown in FIG. 12, the corrugated board 10
The double wall forming pieces 2 to 5 of 1A are bent and erected along the fold lines A and B. At that time, a total of four strip-shaped connecting pieces 13
Are bent inwardly at right angles so as to extend along the inside of the raised double wall forming pieces 2 and 3. Next, by fitting the engaging protrusions 13a of the pair of connecting pieces 13, 13 facing each other into the engaging holes 13b, the four corners of the peripheral wall of the main body A1 can be brought into a connected state. I can.

Then, the four corner reinforcing pieces 14 are arranged so as to extend along the inner side of the peripheral wall from the state shown in FIG.
By bending in the state shown in (4), the above four corners can be further reinforced. The operation of standing up the double wall forming pieces 2 and 3 which hinder the bending may be postponed.

In this state, as shown in FIG. 14, the folded bottom packings A2 and A3 are applied to the raised double wall forming pieces 2 and 3, respectively, so that the central surface 1 Set aside on both sides. Thereafter, as shown in FIG. 15, the double wall forming pieces 4 and 5 are bent inward in a U shape along the parallel folds D1 and D2, respectively, and the lateral bending piece 12 is turned sideways. Make it bend. As a result, the bottom packing A that has been placed
2 and A3 are fixed on the central surface 1, and the double wall structure of one side wall of the tray-shaped packaging material 200A facing up is folded up.

Then, from the state shown in FIG. 15, the double wall forming pieces 2 and 3 are bent inward in a U shape along the parallel folds C1 and C2, respectively, as shown in FIG. ,
The lower portions of the inner wall surfaces 2b and 3b are fitted into the cuts 28 and 28a provided on the top surfaces 21a of the bottom packings A2 and A3,
Further, the locking projection 25 is fitted into the insertion hole 9 (removal hole 10) of the inner wall surfaces 2b and 3b. Thereby, the double wall structure of the other opposing side wall of the tray-shaped packaging material 200A is also folded up,
The folding operation of the tray-shaped packaging material 200A is completed simply and quickly even though its internal structure is relatively complicated.

In the folded tray-shaped packing material 200A, when the L-shaped bent pieces 6a arranged at the four corners of the upper surface are pushed down by the fingers or the lower end of the ridge protection material 200C, FIG.
As shown in FIG. 16, the insertion hole 7 into which the lower end of the ridge protection material 200C is inserted is opened as shown in FIG.

Next, the structure of the tray-shaped packing material 200B will be described. As shown in the figure, the tray-shaped packing material 200B having the configurations shown in FIGS. 31 and 32 is a tray provided with double peripheral walls from the corrugated board 101B shown in FIGS. 18 and 19, as shown in FIG. 23, the main body portion B1 that folds up in the shape of
Two top surface packings B2 folded up from the corrugated board 104A shown in FIG. 24 to the shape shown in FIG. 27, and one top surface packing B3 folded up from the corrugated board 104B shown in FIG. 28 to the shape shown in FIG. It consists of a combination with.

Basically, the method of forming the folds and the cuts on the corrugated board 101B for folding up the main body B1 is basically the corrugated board 1
It is similar to that of 01A. That is, the double wall forming pieces 2 and 3 are continuously provided on the left and right sides (in the figure) of the substantially rectangular center surface 1 through the folds A, respectively, and the double wall forming pieces 2 and 3 are formed on the upper and lower sides of the center surface 1. The wall forming pieces 4 and 5 are continuously provided via folds B, respectively.

Parallel wall folds C1, C2, C3, C4 for forming a double peripheral wall are provided on the double wall forming pieces 2, 3 having a substantially symmetrical shape by bending them in a rectangular cross section. There is. As a result, the outer wall surface of the double wall is reinforced by stacking two outer wall surfaces. Also, near both ends of the top surface 2a, 3a of the double wall,
A cut is provided to form a dovetail-shaped locking piece 15 for fixing the bent shape.

The middle fold of the parallel fold line C3 lacks the fold line and is provided with a U-shaped cut 16 connecting both ends of this part.
6a is formed. This engaging projection 16a
Is fitted into slit-shaped insertion holes 17 provided along the four sides of the central surface 1 to play a role of reliably fixing the folded shape of the double wall.

The double wall forming pieces 4 and 5 having a symmetrical shape are provided with parallel folds D1, D2, D3 and D4 for forming a double wall by bending them in a rectangular cross-section. . As a result, the outer wall surface of the double wall is doubled and reinforced.
Similar to the parallel fold C3, the parallel fold D3 is provided with engaging protrusions 16a at two positions.

Further, the inner wall surfaces 4b of the double wall forming pieces 4 and 5,
Slit-shaped engagement holes 18 for engaging both ends of the top packing B2 are provided near both ends of 5b, respectively. Further, engaging notches 13c that engage with each other are provided at the respective tip portions of the four connecting pieces 13 that are continuously provided on both side ends of the outer wall surfaces 4c and 5c. 14a is a four-corner reinforcement piece.

Further, the insertion holes 7 into which the upper ends of the ridge cushioning materials 200C are fitted at the four corners of the top surface of the tray-shaped packaging material 200B.
In order to form the double wall forming pieces 2, 3 and 4,5, a cut 19 and a cut 20 are provided near each end of the top surfaces 2a, 3a and 4a, 5a. 1a is a trapezoidal hollow. When the tray-shaped packing material 200B is used, as shown in FIG. 1, since the fitting recess S2 faces downward, the above "top surface" becomes a "bottom surface".

To fold up the main body B1 from the corrugated board 101B, first, as shown in FIG.
5 is erected and each connecting piece 13 is bent inward at a right angle. Then, each pair of connecting pieces 1 facing each other
When the notches 13c for engagement of 3 and 13 are engaged with each other, the standing state is fixed.

Next, as shown in FIG. 21, while the double wall forming pieces 4 and 5 are bent inwardly in the shape of a rectangular tube, the engaging projections 16a are inserted into the insertion holes 17 of the central surface 1. If it is inserted in, the one opposing double wall of the main body B1 is folded up, and its folded shape is fixed. Subsequently, as shown in FIG. 22, if the double wall forming pieces 2 and 3 are bent in the same manner as above, the other opposing double wall of the main body portion B1 is also formed, and the main body portion B1 is folded. The above is complete. L-shaped insertion holes 7 into which the upper ends of the ridge protection members 200C are inserted are formed at the four corners of the top surface of the folded main body B1.

Next, the structure of the top packing B2 is shown in FIG.
The description will be made with reference to FIGS. As shown in FIGS. 25 to 27, the corrugated cardboard 1 for folding up the top packing B2 in a form in which two small-angle cylindrical bodies 40, 40 are connected side by side.
04A has a rectangular area in the middle as the bottom surface 41. On the opposite sides of the bottom surface 41 in the width direction, square tube forming pieces 42 and 43, which are provided with parallel folds L1 and L2 and are bent in a gutter shape, are continuously provided through the fold M.

A rectangular cutout hole 44 is provided in the central portion of the top surface 42a of the square tube forming piece 42 to form an outer wall surface 42.
Trapezoidal locking projections 45 are provided at both ends of b.
Further, the other square tube forming piece 43 is provided with a fold missing portion at the center of the fold M, and a U-shaped cut 46 is provided so as to extend across both ends of the fold M so that when the fold M is bent, the locking protrusion is formed. The portion 46a is formed.

On the opposite sides of the bottom surface 41 in the longitudinal direction, the above-mentioned 2
An end face closing piece 47 and an inserting piece 47a for connecting together the open tube ends of the small-angle tube body 40 of the book are provided in series. When the insertion piece 47a is inserted into the open cylinder end, a fitting cut is provided at each position where the insertion piece 47a and the rectangular tube formation pieces 42, 43 interfere with each other.

To fold up the top packing B2 shown in FIG. 27 from the corrugated board 104A, as shown in FIG.
The square-tube forming pieces 42 and 43 are bent face-to-face in a gutter-like shape, and are stacked downward on the bottom surface 41.
As shown in FIG. 5, the open cylinder ends of the respective rectangular cylinders may be closed by the end face sealing pieces 47.

Next, the structure of the top packing B3 is shown in FIG.
The description will be made with reference to FIGS. The basic structure of the top packing B3 folded up from the corrugated board 104B shown in FIG. 28 to the form shown in FIG. 30 is substantially the same as the top packing B2. However, the locking projection 45 of the top packing B2
Instead, the insertion protrusions 48 are integrally connected to both ends of the top surfaces 42a and 43a. Further, each corner portion of the top packing B3 is obliquely cut as shown in FIG. The top packings B2 and B3 having the same thickness are thinner than the height of the main body portion B1 by a predetermined dimension.

As shown in FIG. 31, the two folded top packings 2B are in a state of being respectively along one of the facing double walls of the folded body portion B1 and both ends thereof. It is set on the central surface 1 so as to be fitted between the other opposing double walls. At that time, the engaging projections 45 and the engaging projections 46a at both ends of the top packings 2B and 3B are respectively engaged with the corresponding engaging holes 1.
8 and the insertion hole 9, the above stationary state is fixed.

Lastly, as shown in FIG. 31, the top packing B3 is installed between two opposing top packings 2B, 2B in an H-shaped arrangement while the insertion protrusions 48 at both ends thereof are placed.
When the tray-shaped packing material 200B is folded and assembled, the tray-shaped packing material 200B is completed by inserting the tray into the gap between the central surface 1 and the double wall.

The tray-shaped packing material 200A of this embodiment has an auxiliary packing 200D having the form shown in FIG.
Is attached. This auxiliary packing 200D is shown in FIG.
8. As shown in FIG. 39, the lower tray-shaped packing material 200
It is placed on the top surface of the double peripheral wall of A to play a role of supplementarily cushioning and supporting the packaged article 300.

One sheet of corrugated board 1 shown in FIGS. 33 and 34.
The basic configuration of this auxiliary packing 200D that is folded up from 05 into a flat rectangular tube shape is substantially the same as the top surface packing B2. However, the compressive strength in the thickness direction is determined by the top packing B2.
In order to further increase the size, except for the bottom surface 41, the intermediate portions of the two small-angle tubular bodies 40 are cut out in a notched shape, and the end face sealing piece 47 and the insertion piece 47a are also connected to each notched end. ing. That is, the small-angle tubular body 40 has two ends and an intermediate two
End face sealing piece 47 for improving pressure resistance at a total of 4 places
Has been fitted. Reference numeral 49 is a slit-shaped hollow.

From cardboard 104 to auxiliary packing 200D
The procedure for folding up is clear in FIGS. 35 to 37, and a description thereof will be omitted. 38 and 39 show how to use the auxiliary packing 200D in this embodiment. Packing article 30 in this case
In No. 0, as shown in FIG. 39, the lower part of the outer wall surface is recessed in a step shape. Therefore, the auxiliary packing 200D is used to effectively buffer and support the recessed step surface 300a.

That is, the auxiliary packing 200D corresponds to the outer shape of the lower part of the packed article 300, and the tray-shaped packing material 20 is provided.
It is placed sideways on the necessary top surface of the top surfaces 2a to 5a of the peripheral portion of 0A. In this mounted state, the auxiliary packing 20
The inner surface of 0D is cushionedly contacted with the packaged article 300. The ridge protection members 200C applied to both ends of the outer surface of the auxiliary packing 200D prevent the auxiliary packing 200D from falling outward. The usage of the auxiliary packing 200D is not limited to this embodiment.

In this way, the tray-shaped packing material 200A covering the bottom portion of the packaged article 300 buffers and supports the bottom surface of the packaged article by the bottom packings A2 and A3 and the auxiliary packing 200D. The peripheral wall cushions and surrounds the lower end four rounds of the packaged article.

On the other hand, the tray-shaped packing material 200B covering the top surface portion of the packaged article 300 has the top surface packings B2, B.
3 is cushioned on the top surface of the packaged article, and the double peripheral wall cushions the upper end four rounds of the packaged article. Furthermore, the ridge protection material 200C applied to each of the vertically oriented ridges of the packaged article 300 serves to protect the ridges and to integrally connect the upper and lower tray-shaped packaging materials 200A and 200B. .

Then, the tray-shaped packing materials 200A, 200
B, bottom packing A2, A3, top packing B2, B
3 and the auxiliary packing 200D are suitable for various packaging items by appropriately changing the type of corrugated board used as a material, the dimensional ratio of each constituent part, and the number of partially corrugated corrugated boards. It is possible to easily obtain various buffer characteristics. If necessary, the ridge protection material 200
C may also be folded up into a hollow double wall structure.

[0052]

As is apparent from the above description, the corrugated cardboard packaging material and the packaging method according to the present invention provide excellent practical effects as listed below. (A) For appliances such as refrigerators and dishwashers / dryers that have a box structure with a relatively strong casing,
It is possible to package very simply, safely and surely using only the minimum required amount of corrugated cardboard without using a conventional wooden frame or cardboard box. (B) Due to its unique assembly structure, it has excellent pressure resistance and shock-absorbing performance, so it is possible to surely shock-support even a considerably large and heavy packaged article. (C) The arrangement and number of bottom packings and auxiliary packings, or how to use them, can be freely changed according to the property of the packaged article.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a perspective view showing a state in which a corrugated board packaging material composed of a plurality of members is combined.

FIG. 2 is a plan view of a corrugated board 101A which is a material of the main body A1 of the tray-shaped packaging material 200A.

FIG. 3 is a perspective view of the corrugated board 101A.

FIG. 4 is a plan view of a corrugated board 102A, which is a material of the bottom packing A2, same as above.

FIG. 5 is a perspective view of the corrugated board 102A.

FIG. 6 is a perspective view of the bottom packing A2 of the above.

FIG. 7 is a perspective view of a corrugated board 102B which is a material of the bottom packing A3 of the above.

FIG. 8 is a perspective view of the bottom packing A3 of the above.

FIG. 9 is a perspective view of a corrugated board 103 which is a raw material of the ridge protection material 200C.

FIG. 10 is a perspective view of the corrugated board 103 of the above.

FIG. 11 is a perspective view of a ridge protection member 200C of the above.

FIG. 12 is the same as the above, the main body portion A1 of the tray-shaped packaging material 200A.
It is a perspective view of the state where it started to be folded.

FIG. 13 is a perspective view showing a state where the main body portion A1 is being folded up.

FIG. 14 is a perspective view showing a state in which bottom packings A2 and A3 are placed on the main body A1 in the middle of folding.

FIG. 15 is a perspective view of the tray-shaped packing material 200A in a state in which the tray-shaped packing material 200A is substantially folded up.

FIG. 16 is a perspective view of the tray-shaped packing material 200A that has been folded up.

FIG. 17 is a perspective view showing a state where the lower end of the ridge protection material 200C is inserted into each of the four corners of the tray-shaped packaging material 200A.

FIG. 18: Same as above, main body B1 of tray-shaped packaging material 200B
It is a top view of the corrugated board 101B used as the material.

FIG. 19 is a perspective view of the corrugated board 101B of the above.

FIG. 20 is a perspective view showing a state where the tray-shaped packaging material 200B has started to be folded.

FIG. 21 is a perspective view of the tray-shaped packaging material 200B during folding up.

FIG. 22 is a perspective view of the tray-shaped packing material 200B that has been folded up.

FIG. 23 is a plan view of a corrugated board 104A which is a material of the top packing B2 of the above.

FIG. 24 is a perspective view of the corrugated board 104A of the above.

FIG. 25 is a perspective view of the top packing B2 during folding up.

FIG. 26 is a perspective view of the back surface side of the folded top packing B2 of the above.

FIG. 27 is a perspective view of the front side of the top packing B2 of the same as above.

FIG. 28 is a plan view of a corrugated board 104B which is a material of the top packing B3 of the above.

FIG. 29 is a perspective view of the top packing B3 during folding.

FIG. 30 is a perspective view of the top packing B3 that has been folded up.

FIG. 31 is a perspective view of the lower surface side of the tray-shaped packaging material 200B of the above.

FIG. 32 is a perspective view of the upper side of the tray-shaped packaging material 200B of the above.

FIG. 33 is a plan view of a corrugated board 105 which is a material of the auxiliary packing 200D.

FIG. 34 is a perspective view of the cardboard 105 of the above.

FIG. 35 is a perspective view showing a state in which the auxiliary packing is started to be folded up from the corrugated board 105.

FIG. 36 is a perspective view showing a state in which the auxiliary packing is substantially folded up.

FIG. 37 is a perspective view of the auxiliary packing which has been folded up.

38 is a view corresponding to FIG. 1 with the auxiliary packing assembled, same as above.

[Fig. 39] The same as the above, Fig. 3 explaining the function of the auxiliary packing.
8 is a partial vertical sectional view of FIG.

[Explanation of symbols]

101-105 cardboard 200A, 200B Tray packing material 200C ridge protection material 200D auxiliary packing 300 packaged goods 300a Recessed step A1, B1 body A2, A3, bottom packing B2, B3 Top packing S1, S2 fitting recess 1 Center plane 1a Opening hole 2-5 Double wall forming piece 2a-5a Top surface 2a-5b inner wall surface 2c-5c outer wall surface 6 L-shaped cut 6a L-shaped bent piece 7 insertion holes 8 notches 9 insertion holes 10 holes 11 breaks 12 Lateral bent pieces 13 Connection piece 13a engaging protrusion 13b, 18 Engagement holes 13c engagement notch 14 four corner reinforcement pieces 15 Locking piece 16 U-shaped break 17 Insertion hole 19 breaks 20 notches 21 body piece 21a Top surface 21b Side wall surface 22 Auxiliary piece 22a Notch 22b rectangular hole 23 Support piece 24, 26, 29 U-shaped cut 25 Locking protrusion 27 spacer pieces 28,28a break 30 Overhanging surface 40 small angle cylinder 41 Bottom 42,43 Square tube forming piece 42a, 43a Top surface 42b, 43b inner wall surface 44,49 hollow hole 45 Locking protrusion 46 U-shaped break 46a Locking protrusion 47 End face sealing piece 47a Insertion piece 48 Inserting protrusion A, B, E, G, H, I, J, K, M folds k break C1, C2 parallel folds D1, D2 parallel folds F1, F2 parallel folds L1 and L2 parallel folds

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Taniguchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. Paper device industry Co., Ltd. (56) Reference JP-A-61-115860 (JP, A) JP-A-7-291354 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65D 5 / 50 101 B65D 5/44 B65D 81/02

Claims (7)

(57) [Claims] 1. A rectangular gutter-shaped or rectangular tube in which a pair of upper and lower tray-shaped main bodies having a double-walled peripheral wall are folded up from a single corrugated cardboard, and the height of which is lower than that of the main body. By folding up a plurality of vertical bottom packings or top packings from a single cardboard, and arranging the bottom packings or top packings in an appropriate arrangement inside the tray-shaped main body, , Assembling a tray-like packing material having a partial double bottom, and at the time of this assembling, the bottom surface packing or the top surface packing is engaged or fitted with an inner wall portion of the main body portion having a double peripheral wall. By fixing the assembled state of the tray-shaped packaging material, the double-bottomed portion is applied to the tray-shaped packaging material on each of the bottom surface and the top surface of the box-shaped packaging article. Cover it in the vertical position, and touch the ridges in the vertical direction of the packaged item. It is characterized in that the upper and lower ends of the ridge portion protection material made of corrugated cardboard and in the shape of an angle material are inserted into the insertion holes provided in the respective corner portions of the set of tray-shaped packaging materials. Packing method with corrugated cardboard packing material. 2. A tray-shaped main body A having a double peripheral wall, which is folded up from one corrugated board 101A (101B).
1 (B1) and one cardboard 10 for arranging on the bottom surface of the main body portion
2A (102B) or one cardboard 104A (104
The tray-shaped packing material 200A is folded up from B) into a rectangular gutter shape or a rectangular tube shape, and a plurality of bottom packings A2 (A3) or top packings B2 (B3) whose height is lower than that of the main body. Alternatively, the corrugated cardboard 101A (101B) has a double-walled structure in which the four sides of the rectangular central surface 1 occupying the central portion of the corrugated cardboard 101A (101B) are bent in a U-shape or a U-shape in cross section. Pieces 2 to 5 are arranged in series and face each other 1
A strip-shaped connecting piece 13 to be superposed on the other pair of double wall forming pieces 2 and 3 opposite to each other is connected to each of both ends of the pair of double wall forming pieces 4 and 5, and overlaps with each other in the overlapping state. The tip of each of the pair of connecting pieces 13, 13 is provided with an engaging portion and an engaged portion that engage with each other. The corrugated board 102A (102B) or the corrugated board 1 is provided.
04A (104B) is a corrugated cardboard packing material characterized by having a plurality of folds for bending into a rectangular gutter shape or a rectangular tube shape. 3. The top surface 2 of the bottom packing A2 (A3)
The corrugated board packaging material according to claim 2, wherein lower portions of the inner wall surfaces 2b and 3b of the double wall forming pieces 2 and 3 are fitted into the cuts 28 formed in the la 1a. 4. The corrugated cardboard 102A (102B) is
The corrugated cardboard packing material according to claim 2 or 3, wherein a reinforcing piece 22 that overlaps the side wall surface of the corner gutter is continuously provided at a side end of the body piece 21 having the fold line. 5. The corrugated board 104A (104B) is
Square tube forming pieces 42, 43 for forming a small square tube body 40 by bending in a rectangular gutter shape are continuously provided on the opposite sides in the width direction of a rectangular bottom surface 41 occupying the central portion thereof through folds, and the longitudinal direction. 5. An end face sealing piece 47 and an inserting piece 47a for closing the open cylindrical end of the small-angle cylindrical body 40 are continuously provided on the opposite sides of the above. Cardboard packaging. 6. The tray-shaped packing material 200A is placed on the top surfaces 2a to 5a of the double peripheral wall of the main body portion A1, or
Alternatively, the auxiliary packing 200 is formed by bending a piece of corrugated board 105 into a rectangular tube shape to be arranged on the bottom surface of the main body.
D is attached, and the corrugated cardboard 105 is such that square tube forming pieces 42 and 43 for forming small square tube bodies 40 and 40 in parallel are formed on one side of the square bottom surface 41 facing each other. On the other opposite side of the bottom surface 41, an end face sealing piece 47 and an insertion piece 47a to be fitted to the open cylinder end of the small-angle cylinder body 40.
The corrugated board packaging material according to any one of claims 2 to 5, further comprising: 7. The small-angle tubular body 40 has a cutout-shaped intermediate portion except for the bottom surface 41, and the end-face sealing piece 47 and the insertion piece 47a are connected to the cut-out end. The cardboard packaging material according to claim 6, which is characterized in that.