JP2601649Y2 - Cushioning material - 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. That is, the present invention relates to a cushioning material used for packing an object, for example.

[0002]

2. Description of the Related Art FIG. 4 shows one of such conventional cushioning materials.
It is a front sectional explanatory view showing an example, showing a state at the time of packing,
5A and 5B are front sectional explanatory views showing another example of the cushioning material of the conventional example. FIG. 5A shows a state at the beginning of packing, and FIG. 5B shows a state where a gap is formed. As shown in these drawings,
A honeycomb core 2 is used as, for example, a cushioning material 1 for packing of a buffering object A such as a machine, a product, a fruit, a vegetable, and various other articles. For example, the cell axis direction 3 is interposed between the outer box B and the buffer object A with the cell axis direction 3 facing the buffer object A. When an impact load is applied from the outside, the honeycomb core 2 as the cushioning material 1 buckles in the cell axis direction 3 as its thickness direction, thereby relaxing and absorbing the impact load acting as a compressive load. Object A was protected.

[0003]

However, the following problems have been pointed out in such a conventional example. First
In addition, the honeycomb core 2 serving as the cushioning material 1 partially buckles during use due to an impact load from the packaged buffering object A and the outside, and in particular, corresponds to the shape and weight of the buffering object A, The honeycomb core 2 was locally buckled under a local load. Then, as shown in FIG. 5B, a gap C is formed between the buffer target A and the honeycomb core 2 by an amount corresponding to the space corresponding to the buckling portion 4 thus formed. Occur. Therefore, due to such a gap C, for example, the entire center of gravity shifts during transportation, and the honeycomb core 2 can reduce the impact load from the outside after the fact.
Absorption is not carried out smoothly, and the buffer target A is easily damaged or broken due to a defect or the like.

Secondly, the cushioning material 1 using the conventional honeycomb core 2 has a large cushioning force due to the buckling of the honeycomb core 2 as described above when a large strong impact load is applied from the outside. It can exhibit its function and can absorb and absorb such an impact load to protect the buffer object A. However, when a relatively small impact load is applied from the outside, the honeycomb core 2 does not buckle and does not exhibit the above-described cushioning function, and thus there is a problem that such an impact load cannot be reduced or absorbed. That is, the honeycomb core 2 has a particularly high rigidity and strength in the cell axis direction 3 which is the thickness direction thereof, but does not buckle when a small weak impact load that does not reach the buckling strength is applied. In this case, it has been pointed out that the shock load is not alleviated and absorbed, and the shock absorbing object A receives the shock load, whereby the shock absorbing object A is easily damaged or broken from this surface and defects are likely to occur.

In view of such circumstances, the present invention has been made to solve the above-mentioned problems of the prior art, and a honeycomb core having a hexagonal cross section of a cell wall and a cell is formed in a cell axial direction. By using the direction perpendicular to the buffer object toward the object to be buffered, and using its moderate rigidity, strength, resilience, elasticity, and the function of a spring that does not buckle and compresses and restores, Secondly, it is an object of the present invention to propose a cushioning material which does not have a gap between the object and the honeycomb core and can relax and absorb a relatively small impact load.

[0006]

The technical means of the present invention for achieving this object is as follows. That is, the cushioning member is formed using a honeycomb core, which is a planar assembly of hollow columnar cells partitioned into independent spaces by cell walls. The honeycomb core has a cross-sectional shape of the cell wall and the cell formed of a hexagon, and is used with a direction orthogonal to the cell axis direction directed toward a buffering object. It has resilience and elasticity as well as rigidity and strength. The cushioning material has a cushioning function of relaxing and absorbing the load received from the object to be cushioned or the outside, regardless of its magnitude or strength, by utilizing the rigidity / strength and restorability / elasticity of the honeycomb core. It can be demonstrated.

[0007]

The present invention is constituted by such means, and operates as follows. The honeycomb core used in the cushioning material has a hexagonal cell wall and a cross-sectional shape of the cell, and receives a load in the same direction as a direction orthogonal to the cell axis direction is directed to the buffering object. Thus, the honeycomb core has a proper rigidity and strength, as well as a resilience and elasticity, between the buffer target and the outside, and does not buckle and exhibits a spring-like function. Therefore, first, when a local load is applied due to an impact load from an object to be buffered or from the outside, the honeycomb core having such a suitable rigidity and strength as well as resilience and elasticity, that is, is compressed and restored. This load is reduced and absorbed by the honeycomb core like a spring.
In this way, in this cushioning material, the honeycomb core does not buckle, instead of the method of relaxing and absorbing the load by buckling as in the conventional example of this type, so that no gap is generated between the buffer target and the honeycomb core.

Second, in the cushioning material, when an impact load is applied, a spring-like function of compressing and restoring by utilizing the appropriate rigidity / strength and restorability / elasticity of the honeycomb core. This is alleviated and absorbed using.
Therefore, even when a relatively small impact load is applied,
This can be alleviated and absorbed. That is, this cushioning material can moderate and absorb a relatively large strong impact load as well as a small weak impact load.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 is an explanatory front view of the present invention, in which (1) shows a first embodiment and (2) shows a second embodiment. FIG. 2 is a perspective view of a main part of the honeycomb core. FIG. 2A shows a case where a load is applied in the W direction, and FIG. 2B shows a case where a load is applied in the L direction. FIG. 3 is an explanatory front view of a main part of the honeycomb core, in which (1) FIG. 3 has no sheet material, (2) FIG. The figure shows a sheet material provided with a sheet material on both sides.

First, as the buffering object A of the cushioning material 5, machines, products, fruits, vegetables, and other various articles can be considered. Further, various forms of use of the cushioning material 5 are conceivable. In the first embodiment shown in FIG. 1A, the one used for packing is shown, and the outer box B serving as a cardboard case is shown.
The buffer material 5 is interposed between the buffer material A and the buffer object A.
In the second embodiment shown in FIG. 1 (2), the one used for the pedestal is shown, and the cushioning material 5 is interposed between the pallet P and the buffering object A thereon. Have been.

The cushioning material 5 has a honeycomb core 6
The honeycomb core 6 is made of aluminum,
Steel, lead, other metal, non-metallic, such as glass, Kevlar, carbon, other fiber reinforced plastic (FRP), acrylic, vinyl chloride, other resin sheets, Furthermore, cellulose fibers, inorganic fibers, inorganic sheets, synthetic fiber sheets,
Other types of organic and inorganic fibers and sheets,
Other various things are used. As shown in FIG. 6, the honeycomb core 6 is formed of a planar assembly of hollow columnar cells 8 each partitioned into independent spaces by cell walls 7, and the cross-sectional shapes of the cell walls 7 and the cells 8 are as shown in FIG. Like a hexagon. And, the honeycomb core 6 is generally excellent in weight ratio strength, is lightweight, and has high rigidity and strength.
It is known that it has excellent rectifying effect, flatness, heat insulation, sound insulation, etc., and has a large surface area per unit volume. The honeycomb core 6 is formed by cutting, applying an adhesive, stacking, bonding, and expanding a base material sheet, or by corrugating a base material sheet into a corrugated sheet,
It is formed by a corrugated method of cutting, joining and laminating.

The honeycomb core 6 of the cushioning material 5
Is directed toward the buffer target A in a direction perpendicular to the cell axis direction 3. That is, when the honeycomb core 6 is formed by, for example, an expansion method, the honeycomb core 6 shown in FIG.
As shown in the figure, the W direction (stacking direction, extension direction) orthogonal to the cell axis direction 3 is directed toward the buffer object A,
Alternatively, as shown in FIG. 2 (2), the cell axis direction 3
L direction (the ribbon direction, that is, a direction that is also orthogonal to the W direction on the same plane) is directed toward the buffer object A. In addition, even when the honeycomb core 6 formed by the corrugated method is used, the laminating direction orthogonal to the cell axis direction 3 is directed to the buffer object A according to these, or the laminating direction is in the same plane as the laminating direction. The direction that is orthogonal and also orthogonal to the cell axis direction 3 is directed toward the buffer target A.
Thus, the honeycomb core 6 in the cushioning material 5
The cell axis direction 3 which is the thickness direction is oriented parallel to the buffer object A, and the side surface orthogonal to the opening end face of the cell 8 is
It comes into contact with the buffer object A. In addition, D in FIG. 2 is a streak bonded portion between the cell walls 7.

In the cushioning member 5 of the first embodiment shown in FIG. 1A, a plurality of such honeycomb cores 6 are arranged around the buffering object A, and FIG. In the cushioning material 5 of the second embodiment shown in the figure, one such honeycomb core 6 is arranged under the buffering object A. Of course, in the cushioning material 5, the honeycomb core 6 is used at various other positions and numbers, but in any case, covers the target surface of the cushioning object A to which an external impact load is applied. The honeycomb core 6 has a suitable rigidity and strength and a resilience and elasticity between the buffer target A and the outside, and exhibits a spring-like function of compressing and restoring without buckling. Thus, the cushioning material 5 uses the rigidity / strength and the resilience / elasticity of the honeycomb core 6 to relieve and absorb the load received from the buffering object A and the outside regardless of the magnitude and strength of the cushioning material. Demonstrate function.

FIG. 3 shows various usage forms of the honeycomb core 6 in such a cushioning material 5. FIG. 3A shows an example in which the honeycomb core 6 is used alone as it is. FIG. 3 (2) shows a sheet material 9 as a single-sided material on the side surface of the honeycomb core 6.
The example where is attached is shown. FIG. 3 (3) shows an example in which sheet materials 9 are respectively provided on both side surfaces of the honeycomb core 6 as double-sided surface materials. The sheet material 9 has a flat shape, and is made of a cardboard sheet, a polyethylene sheet,
Polystyrene sheets, other resin sheets, cellulose fibers, other fibers, foam materials, and other various materials are used. Then, such a sheet material 9 functions to prevent the occurrence of scratches such as the buffer target A. In the first embodiment shown in FIG. 1A, the honeycomb core 6 is provided with the sheet material 9 which is a single-sided surface material shown in FIG. 3B. In the second embodiment shown in FIG. 3 (2), the one shown in FIG. 3 (1) is used.

The present invention is configured as described above.
Then, it becomes as follows. That is, in this cushioning material 5,
The honeycomb core 6 is arranged with the direction orthogonal to the cell axis direction 3 facing the buffer object A. That is, this cushioning material 5
In the honeycomb core 6 of the above, the W direction and the L direction orthogonal to the cell axis direction 3 having extremely high rigidity and strength are directed to the buffer target A, and a load is applied in the W direction and the L direction to receive the load. Thus, between the cushioning target A and the outside, there is provided a restoring property and elasticity as well as appropriate rigidity and strength, and a spring-like function that does not buckle is exerted. The cushioning material 5 is used for packing the buffering object A and other uses, and is as follows.

First, during use, the honeycomb core 6 of the cushioning material 5 receives a load locally due to an impact load from the buffering object A or the outside, particularly corresponding to the shape and weight of the buffering object A. If you do the following: In this case, the honeycomb core 6 having the appropriate rigidity and strength and the resilience and elasticity, that is, the honeycomb core 6 that compresses and restores,
Such loads are relaxed and absorbed. That is, the honeycomb core 6 does not buckle, unlike the conventional example shown in FIG. 5 or the like, which relaxes and absorbs the buckling. Therefore, no gap is formed between the buffer target A and the honeycomb core 6. .

Second, the cushioning material 5 has a cushioning function when an impact load is applied by utilizing the appropriate rigidity / strength and resilience / elasticity of the honeycomb core 6 in this manner. The honeycomb core 6 receives the impact load exerted as a compressive load and relaxes and absorbs it. Therefore, even when a relatively small impact load is applied, the impact load can be relaxed and absorbed. As described above, the cushioning member 5 can moderate and absorb a relatively large impact load as well as a small weak impact load, and can easily cope with impact loads of various sizes. .

[0018]

As described above, the cushioning material according to the present invention uses a honeycomb core having a hexagonal cell wall and cell cross section, with the direction orthogonal to the cell axis direction facing the object to be buffered. , Its moderate rigidity / strength and resilience / elasticity,
The following effects are exhibited by exhibiting a spring-like function of compressing and restoring while not buckling. First, there is no gap between the buffer target and the honeycomb core during use. In this cushioning material,
In this way, the occurrence of a gap with the buffer object is suppressed, so that, for example, displacement of the entire center of gravity during transportation is prevented, and subsequent impact loads from the outside are smoothly alleviated and absorbed, so that the buffer object is absorbed. Are not easily damaged or broken, and defects are less likely to occur, so that they are reliably protected.

Second, a relatively small weak impact load can be relaxed and absorbed. Thus, the cushioning material can cope with impact loads of various sizes. From this aspect, damage, breakage, defects, etc. of the cushioning object are prevented, and the cushioning object is reliably protected. As described above, the effects exhibited by the present invention are remarkable and large, for example, the problems existing in this type of conventional example are eliminated.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of a cushioning material according to the present invention;
FIG. 1A shows the first embodiment, and FIG. 2B shows the second embodiment.

FIG. 2 is a perspective view of a main part of the honeycomb core,
FIG. 1A shows the case where the load is applied in the W direction, and FIG. 2B shows the case where the load is applied in the L direction.

FIG. 3 is an explanatory front view of a main part of the honeycomb core,
(1) FIG. 1 shows the case where the sheet material is not attached, (2) FIG. 2 shows the case where the sheet material is attached as a one-sided surface material, and (3) FIG.

FIG. 4 is an explanatory front sectional view showing one example of a conventional cushioning material, showing a state at the time of packing.

5 is an explanatory front view showing another example of the cushioning material of the conventional example, wherein FIG. 5 (1) shows a state at the beginning of packing, and FIG. 5 (2) shows a state where a gap is formed.

FIG. 6 is a perspective view of a honeycomb core.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cushioning material (conventional example) 2 honeycomb core (conventional example) 3 cell axial direction 4 buckling portion 5 cushioning material (of the present invention) 6 honeycomb core (of the present invention) 7 cell wall 8 cell 9 Sheet material A Object to be buffered B Outer box C Gap D Adhesion of striations L direction P Pallet W direction

Claims (1)

(57) [Scope of request for utility model registration] 1. A cushioning material using a honeycomb core, which is a planar assembly of hollow columnar cells each partitioned into an independent space by a cell wall, wherein the honeycomb core has a cross section of the cell wall and a cell. The shape is hexagonal, and the direction perpendicular to the cell axis direction is used for the buffer object, and between the buffer object and the outside, it has resilience and elasticity with moderate rigidity and strength, It exhibits a spring-like function of compressing and restoring while not buckling. The cushioning material uses the rigidity, strength, restoring property, elasticity, etc. of the honeycomb core to absorb the load received from the object to be cushioned and the outside. A cushioning material characterized by being capable of exhibiting a buffering function of absorbing and absorbing regardless of its size or strength.