JP3248572B2 - Packing material assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for packing, particularly a plurality of cushioning materials for protecting a product from impact when the product is packed in a packaging box such as a cardboard box for transportation and storage. The present invention relates to a cushioning material assembly using the same.

[0002]

2. Description of the Related Art Conventionally, as this kind of cushioning material or cushioning material assembly, a resin foam such as styrene foam has been used.
In many cases, the product is molded into a shape corresponding to both ends of the product, and when used, they are put on both ends of the product and stored in a packaging box.

[0003] However, the resin foam has problems such as being bulky and the gas at the time of incineration polluting the environment. Therefore, as an alternative, hollow cushioning materials such as pulp mold pads have been used. This is a cushioning material of a shape that fits both ends of the product,
It is molded into a hollow shape with an inner mold and an outer mold,
Pulp is often used as a molding material so that environmental pollution during incineration can be reduced.

[0004] However, as shown in FIG. 8, when the cushioning material a is formed from the outside of each end of the product b so as to be accommodated in the packaging box c, FIG. 9 shows a cross section of the cushioning material (IX in FIG. 8). −IX
(Cross section along the line), the external force Fe perpendicular to the covering direction concentrates on the peripheral edge of the product insertion opening a1 of the cushioning material and acts in the hollow direction, and the pressure resistance in the direction parallel to the external force is reduced. Chip. On the other hand, as shown in FIG. 10, the cushioning material a at each end of the product b is divided into upper and lower parts, and FIG. 11 (XI in FIG. 10).
As shown in the cross section along the line -XI), the product insertion openings a1 of the upper and lower cushioning materials are opposed to each other, and the opposite openings a2 are directed upward and downward, respectively. Since the wall forming the grip portion is located in the vertical direction in FIG. 10, an external force in the direction of the hollow portion does not act on the peripheral edge of the opening a1, and the pressure resistance of the cushioning material can be increased. However, in this case, four cushioning materials are applied separately, two on each end of the product,
The storing operation in the packaging box c tends to be complicated.

In addition to the above, in any of the hollow and solid forms, the cushioning material alone may not be enough to withstand the compressive strength of the package. In such a case, the reinforcement can be carried out simply and without significantly increasing the weight of the package. A stiffening member that could be implemented was desired.

[0006]

SUMMARY OF THE INVENTION A first object of the present invention is to solve the above-mentioned problems of the prior art and to provide a hollow material which has a high pressure resistance of a cushioning material and which can be easily stored in a packaging box. The present invention provides a packaging cushioning assembly using the cushioning material of the present invention.

[0007] A second object of the present invention is to provide a cushioning material alone.
It is an object of the present invention to provide a cushioning material assembly for packaging provided with a reinforcing member capable of performing reinforcement easily and without increasing the weight of the packaging when the pressure resistance is insufficient.

[0008]

The first object of the present invention is to provide a pair of cushioning materials which sandwich at least a part of a product,
A fixed box for holding the pair of cushioning materials, wherein the cushioning material assembly is interposed between the product and the packaging box, wherein each cushioning material has an open end and a closed end which are located in opposite directions. And a middle wall extending between the two ends, the middle wall contacting the closed ends with the open ends of the pair of cushioning materials in opposite directions. In the stacked state, the shape is determined so that at least a part thereof forms a contour corresponding to the shape of the product, and the fixed box holds the stacked state of the pair of cushioning materials. Thus, the present invention is attained by a packing cushioning assembly characterized by having an opening for receiving the cushioning material.

[0009] In the present invention, preferably, the fixed box includes a flap extending foldably from a peripheral edge of the opening, and the flap is provided when the cushioning material is inserted into the opening in a stacked state. The front end of the flap is bent inward of the opening, and the front end of the flap is locked to the edge on the back side in the insertion direction at the open end of the cushioning material so as to prevent the cushioning material from being removed from the inserted state. It is formed with a length corresponding to the dimension in the insertion direction.

A second object of the present invention is to provide a cushioning material for covering at least a part of a product, and a sheet-like reinforcing member for reinforcing the pressure resistance of the cushioning material. The packaging cushion assembly, wherein the reinforcing member is sandwiched between the cushioning material and the packaging box, and the positioning portion extends along the cushioning material in parallel to a required reinforcement direction in which the pressure-resistant strength of the cushioning material needs to be reinforced. Is wound around an axis parallel to the reinforcing direction in a space inside the packaging box after the product and the cushioning material have been stored and has a columnar shape, and has a height required for reinforcing the cushioning material. And a pressure-resistant portion having a pressure-resistant portion.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows one embodiment of the present invention.
It is a disassembled perspective view of the cushioning material assembly for packing which concerns on embodiment. The cushioning material assembly is mounted on both ends of the product, but the drawing shows one mounted on one end. The cushioning material assembly comprises a pair of cushioning materials 10 that sandwich one end of the product from above and below.
a, 10b, and a fixed box 20 for storing and holding these cushioning materials. The fixed box 20 is dimensioned to be tightly inserted into one end of the packaging box, and the cushioning material assembly is interposed between the product and the packaging box for cushioning.

Each of the cushioning members 10a and 10b has an open end 11a and 11b and a closed end 12 which are located in opposite directions.
a, 12b and an intermediate wall 13 extending between these two ends.
a, 13b and is hollow. Intermediate wall 13
a, 13b are the open ends 11a, 11 of the pair of cushioning materials.
The shape is determined so as to form a contour corresponding to the shape of the product in a stacked state in which the closed ends 12a and 12b are in contact with each other with b being in the opposite direction. Cushioning material 1
It is desirable that 0a and 10b be made of a material that is less likely to cause environmental pollution during incineration, for example, a pulp mold pad. However, a molded article made of other synthetic resin materials such as styrene foam can be used. In any case, the cushioning material is made hollow by molding, and an open end with an opening is formed due to the necessity of die cutting. By arranging the open end as described above, an external force (a force acting mainly in the vertical direction in this embodiment) is mainly supported by the intermediate wall,
Since no external force acts on the peripheral edge of the opening in the direction of the hollow portion, a cushioning material having a high pressure resistance can be obtained.

The fixed box 20 includes a pair of cushioning members 10a, 1
0b is received from the upper opening 21 and held in a stacked state. For this reason, in this embodiment, a lid 22 that closes the opening is provided. The lid portion 22 includes a protruding piece 220 extending from the tip edge, and a shallow notch 221 is provided on both sides of the protruding piece. The protruding piece 220 is a cover 2
2 is closed and inserted into a slit 23 formed horizontally on the upper side wall of the fixed box 20. In this state, projecting piece 2
Reference numeral 20 denotes a notch 221 which is engaged with the edge of the slit 23 to keep the lid 22 closed. In this embodiment, a product receiving opening 24 is provided in a side wall of the fixed box 20. The opening 24 is formed with a contour corresponding to the product shape, similarly to the contour formed by the buffer members 10a and 10b in the stacked state. The opening 24
A flap 25 is formed at the peripheral edge of. The flap 25 inserts the cushioning materials 10a and 10b into the fixing box 20 and then bends the inside of the opening to more reliably hold the cushioning material in the fixing box, and inserts the end of the product into the opening 24. Make it easier. The fixed box is usually made of cardboard or other paperboard material, but other sheet-like materials suitable for packaging can also be used.

In order to use this cushioning material assembly, first, cushioning materials 10a and 10b are inserted into the fixing box 20, the flap 22 is bent into the opening 21, and one end of the product is inserted into this. The same operation is performed at the other end of the product. In this manner, the cushioning material assemblies are attached to both ends of the product, and the product is put in a packaging box.
As shown in FIG. 8, if the packaging box is configured to receive the product or the like in a horizontal direction from the side opening, the top surface becomes a continuous flat surface, which is suitable for displaying an explanation or displaying an advertisement. . However, as shown in FIG. 10, a packaging box in which a product or the like is stored through an opening in the top surface can also be used. Also, the number used for one packaging box is appropriately determined as necessary, and is attached to both sides of the product as described above. A use form such as doing is also possible.

FIG. 2 shows another embodiment of the cushioning material assembly for packing according to the present invention. This cushioning material assembly also includes cushioning materials 10a and 10b similar to those described above. In the following description, members that are the same as or similar to those in the previous embodiment are given the same member numbers, and detailed descriptions thereof are omitted. In this embodiment, the fixed box 30 is formed by winding a band-shaped material into a rectangular shape, and has openings 3 opened at both ends in the horizontal direction.
1 is formed.

The method of using the cushioning material assembly according to this embodiment is the same as that of the above-described embodiment, except that it does not involve fixing with a flap.

FIG. 3 shows still another embodiment of the cushioning material assembly for packing according to the present invention. This cushioning material assembly also has the same cushioning materials 10a and 10b as described above.
It has. In this embodiment, the fixed box 40 has a rectangular box shape in a side view, and bendable flaps 42a and 42b are provided above and below a peripheral portion of an insertion side opening 41 for a product or the like.
Are integrally formed. Further, tabs 43 extending shortly from the peripheral edge are provided above and below the peripheral edge of the opening on the opposite side.
a and 43b are integrally formed.

These flaps 42a and 42b are formed with a length corresponding to the depth dimension of the open ends of the cushioning members 10a and 10b. When the cushioning members 10a and 10b are inserted into the opening 41 in a stacked state. Then, it is bent inward of the opening. In this state, when the cushioning material is inserted from the opening 41 to the back of the cushioning material, as shown in FIG.
The leading end 420b of the b locks to the edge 100 on the back side in the insertion direction at the open end of the cushioning material to prevent the cushioning material from being removed from the inserted state. Further, by bending the flaps 42a and 42b to the opening side to cover the open end of the cushioning material, two fixed box forming materials exist between the open end and the packaging box. Thereby, even if an external force acts near the cushioning material, the external force is dispersed by the flap and transmitted to the cushioning material. Therefore, the cushioning material assembly of this structure is excellent in pressure resistance, and when stacking the packaging boxes,
Even if packaging boxes of different sizes are stacked, the boxes can be more reliably prevented from being damaged.

The tabs 43a and 43b are bent toward the opening side to cover the open edges of the cushioning members 10a and 10b. Generally, when a cushioning material is molded, burrs at the time of molding may remain on its open end (opening edge) (101 in FIG. 4). When the burr is present, the user may hurt his fingers when putting the cushioning material into the packaging box, or the cushioning material may be caught on the box, making the operation difficult and may damage the box. In contrast, tab 4
If the open edge of the cushioning material is covered with 3a and 43b, the burr 101
The work can be performed smoothly without being caught on the packaging box.

FIG. 5 shows that the cushioning material 10a, 10
FIG. 4B is a view showing the state in which “b” is inserted (see FIG. 4 as viewed from the left) when viewed from the side of the tabs 43a and 43b. As shown in this figure, the side ends 430 of the tabs 43a and 43b are designed so that the tabs 43a and 43b do not catch on the opening edge of the packaging box when the packaging box is placed.
It is desirable that the shape be cut off obliquely to the tip side.

FIG. 6 shows still another embodiment of the cushioning material assembly for packing according to the present invention. This cushioning material assembly includes two cushioning materials 50 respectively covering both ends of a product, and a sheet-like reinforcing member 60 for reinforcing the pressure resistance of the cushioning material, and is interposed between the product and the packaging box. Can be In this embodiment, the cushioning member 50 may be a solid type such as styrene foam, in addition to the hollow type formed by the above-described molding.

The reinforcing member 60 has a positioning portion 61 sandwiched between the cushioning material 50 and the packaging box c, and a pressure-resistant portion 62 extending from the positioning portion. The positioning portion 61 extends along the cushioning material in parallel to a necessary reinforcement direction (in this example, a vertical direction) in which the pressure-resistant strength of the cushioning material needs to be reinforced, and extends to both sides from the end face portion 611 covering the outer end face of the cushioning material. Side part 612
, And the pressure-resistant portion 62 is formed continuously to the side surface portion 612. The pressure-resistant part 62 includes the product b and the cushioning material 50.
Is wound around an axis parallel to the direction of reinforcement required in the empty space in the packaging box c, and has a prismatic shape. The height required for reinforcing the cushioning material, that is, the direction of reinforcement necessary for the cushioning material It has the same height as. In this example, the cushioning member 50 is provided between the pressure-resistant portion 62 and the end portion 611 of the positioning portion.
However, the position of the pressure-resistant portion 62 is appropriately determined, and may be provided at a position somewhat away from the cushioning material according to the shape of the product.

In order to use the cushioning material assembly, first, the cushioning material 50 is put on both ends of the product b, the reinforcing member 60 is further covered from the outside thereof, and the pressure-resistant part 62 is positioned inside the cushioning material 50. What is necessary is just to put the thing of this state from the opening of the packaging box c as shown.

According to this cushioning material assembly, the pressure-resistant portion 62 of the reinforcing member 60 is formed in a columnar shape by winding and extends in the direction of reinforcement, and has the same length as the cushioning material. A pressure-resistant action against vertical force) is achieved, and the pressure-resistant strength of the cushioning material can be effectively reinforced.

FIG. 7 shows still another embodiment of the cushioning material assembly according to the present invention. This cushioning material assembly also includes cushioning materials 10a and 10b similar to those in the embodiment shown in FIGS. In this embodiment, the fixed box 70 has substantially the same configuration as that in the embodiment of FIG. That is, the fixed box 70
Is formed in a rectangular box shape in a side view, and bendable flaps 72a and 72b are integrally formed above and below a peripheral portion of the opening 71. These flaps 72a, 72b
Are the same as in the embodiment of FIG.
0b is formed to have a length corresponding to the depth dimension of the open end of the cushioning material. From the outside, and acts to increase the pressure resistance by the dispersion of external force.

Further, the fixed box 70 of this embodiment is provided with pressure-resistant portions 73 integrally extending from both side edges of the opening 71 on the side where the flaps 72a and 72b are provided. This pressure-resistant part 7
Reference numeral 3 extends from the side wall of the fixed box 70, and is wound around an axis parallel to the reinforcing direction in a space in the packaging box after receiving the product and the cushioning material assembly, and forms a columnar shape, equivalent to the fixed box 70. Height. In this embodiment, the pressure-resistant portion 72 is provided at a position directly facing the opening 71.

In order to use the cushioning material assembly, first, the cushioning materials 10a and 10b are placed in a stacking state, and the pressure-resistant portion 73 of the fixing box 70 is pushed out and put into the fixing box 70 from the opening 71. Two pieces in this state are prepared, mounted on both sides of the product, and placed in a packaging box. Thereby, the cushioning materials 10a and 10b are connected to the open ends 11a and 10a.
Since the closed ends 12a and 12b are brought into a stacked state in which the closed ends 12a and 12b are in contact with each other with the opposite directions (upward and downward), the external force (force acting mainly in the vertical direction in this embodiment) is mainly Since it is supported by the intermediate wall, high pressure resistance is obtained.

Further, according to the cushioning material assembly, since the pressure-resistant portion 72 of the reinforcing member 70 is formed into a columnar shape by winding and extends in the direction required for reinforcement, and has a length equal to the height of the fixed box, the external force is reduced. (In this example, a force in the vertical direction), and the pressure-resistant action of the cushioning material can be effectively reinforced.

In this embodiment, a pair of pressure-resistant parts 73 is provided on one side of the fixed box 70 at a position directly facing the opening, but the number and position thereof can be determined as appropriate.
One pair may be provided on each side of the zero, or may be provided at a position distant from the opening 71 to some extent.

As shown in the above embodiments, the fixed box plays a role of integrally holding the stacked state of the cushioning material and facilitating insertion into the packaging box. Therefore, the fixed box is
It can be in various forms having the holding function, and in addition to the box made of the surface member shown in the above embodiment, a fixed box formed by an elongated band-shaped member extending along the side of the box or an angle-shaped member having an L-shaped cross section. Can also be formed. Also in this case, the fixed box has an opening for receiving the cushioning material, and a stopper that can be opened and closed to prevent the cushioning material from being detached is provided in the opening as necessary. The stopper body can be, for example, a band-shaped member extending diagonally from the opening of the fixing box, and one end is fixed to the opening edge, and the other end is formed at the tip end similarly to the lid shown in FIG. A configuration in which a closed state is maintained by providing a protruding piece and inserting the protruding piece into a slit of the box forming member can be adopted.

[0031]

As is apparent from the above, according to one embodiment of the present invention, the cushioning material assembly housed in the packaging box together with the product has the open ends of the paired hollow cushioning materials in opposite directions. In the stacked state where the closed ends are in contact with each other, the intermediate walls of each cushioning material form a pair and form a contour for receiving the product, so that the external force acting in the stacking direction of the cushioning material is mainly the intermediate wall. And high pressure resistance is obtained. Also, the fixed box of the cushioning material assembly, so as to maintain the stacked state of the cushioning material forming a pair,
Since the openings for receiving these cushioning materials are provided, by holding the pair of cushioning materials in the fixed box through the openings, the cushioning material assembly can be handled integrally in the packing operation, and The storage operation can be performed easily and the workability is excellent.

According to another aspect of the present invention, a cushioning material assembly is provided in which a reinforcing member housed in a packaging box together with a cushioning material extends from a positioning portion sandwiched between the cushioning material and the packaging box, and extends from the positioning portion. It has a pressure-resistant part that is wound around an axis parallel to the direction of reinforcement and forms a column in the space inside the packaging box after containing the product and cushioning material, and has the height necessary to reinforce the cushioning material. As a result, a pressure-resistant portion in the form of a column having a required height is formed by being securely installed at a required position in the packaging box and winding the material. Therefore, with only the cushioning material,
When the pressure resistance is insufficient, the reinforcement can be performed simply and without significantly increasing the packing weight.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a packaging cushioning assembly according to an embodiment of the present invention using a hollow cushioning material.

FIG. 2 is an exploded perspective view of a cushioning assembly for packing according to another embodiment of the present invention using a hollow cushioning material.

FIG. 3 is an exploded perspective view of a packing cushioning assembly according to still another embodiment of the present invention using a hollow cushioning material.

FIG. 4 is a longitudinal sectional side view of the cushioning material assembly shown in FIG. 3;

FIG. 5 is a rear view of a part of the cushioning material assembly shown in FIG. 3;

FIG. 6 is an exploded perspective view of a cushioning material assembly for packing according to an embodiment of the present invention using a reinforcing member.

FIG. 7 is an exploded perspective view of a packing cushioning assembly according to another embodiment of the present invention using a reinforcing member.

FIG. 8 is an exploded perspective view of an example of a conventional packing mode.

FIG. 9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is an exploded perspective view of another example of the conventional packaging mode.

11 is a sectional view taken along the line XI-XI in FIG.

[Explanation of symbols]

10a, 10b: cushioning material, 11a, 11b: open end,
12a, 12b: closed end, 13a, 13b: intermediate wall,
20, 30, 40, 70 ... fixed box, 21, 31, 41,
Reference numeral 71: opening, 42a, 42b, 72a, 72b: flap, 50: cushioning material, 60: reinforcing member, 61: positioning part, 62, 73: pressure-resistant part, 100: edge on the back side in the insertion direction of the cushioning material open end Department

Claims (3)

(57) [Claims] 1. A pair of cushioning materials sandwiching at least a part of a product, and a fixed box holding the pair of cushioning materials,
A cushioning material assembly interposed between a product and a packaging box, wherein each cushioning material has an open end and a closed end located in opposite directions, and an intermediate wall extending between these ends. In the stacked state where the open ends of the pair of cushioning materials are in opposite directions and the closed ends are in contact with each other, at least a part of the intermediate wall is The shape is determined so as to form a contour corresponding to the shape, and the fixed box is provided with an opening for receiving the cushioning material so as to maintain the stacked state of the pair of cushioning materials. A cushioning material assembly for packing. 2. The fixing box has a flap extending from the periphery of the opening so as to be bent, and the flap is inserted into the opening when the cushioning material is inserted into the opening in a stacked state. The end of the flap is bent so that it corresponds to the dimension in the insertion direction of the cushioning material open end so as to lock the edge of the cushioning material at the back end in the insertion direction at the open end to prevent removal from the inserted state. The packaging cushioning material assembly according to claim 1, wherein the packaging cushioning material assembly is formed with a predetermined length. 3. A packaging cushioning material assembly comprising a cushioning material covering at least a part of a product and a sheet-like reinforcing member for reinforcing the pressure resistance of the cushioning material, the packaging cushioning material assembly being interposed between the product and the packaging box. The reinforcing member is sandwiched between the cushioning material and the packaging box, and a positioning portion extending along the cushioning material in parallel to a required reinforcement direction in which the pressure-resistant strength of the cushioning material needs to be reinforced, and extending from the positioning portion. ,
In the empty space in the packaging box after containing the product and the cushioning material, a pressure-resistant portion which is wound around an axis parallel to the direction of reinforcement and forms a columnar shape and has a height necessary for reinforcing the cushioning material. A cushioning material assembly comprising: