JPH0723536U - Cushioning material - Google Patents

Abstract

(57) [Abstract] [Purpose] First, even if the honeycomb core is partially buckled, no gap is created between the honeycomb core and the cushioning target.
In addition to the ability to absorb and absorb large strong impact loads, it is also possible to absorb and absorb small weak impact loads, and by doing so, we propose a cushioning material that prevents damage or damage to the cushioning object and the generation of defects. To do. Furthermore, thirdly, a cushioning material that is excellent in cost is also proposed by the simple and easy structure. A cushioning material (6) using a honeycomb core (7), which is a planar aggregate of hollow columnar cells (8).
Uses the elastic material 5 such as a spring or a foam having a cell axis direction 3 directed toward the buffer object A and having resilience in the cell axis direction 3. Further, it is considered that the elastic material 5 is interposed in the cells 8 of the honeycomb core 7, stacked with the honeycomb core 7 in a stacked state, or interposed between the honeycomb cores 7. It is also conceivable to interpose the elastic material 5 in the removed portion of the honeycomb core 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cushioning material. That is, it relates to a cushioning material used for packing an object, for example.

[0002]

[Prior art]

 FIG. 4 is a front cross-sectional explanatory view showing one example of such a conventional cushioning material, showing a state at the beginning of packing, and FIG. 5 is a front cross-sectional explanation showing another example of the conventional cushioning material. It is a figure, (1) figure shows the state of the beginning of packing, and (2) figure shows the state with which the clearance gap was produced. As shown in these drawings, a honeycomb core 2 is used as a cushioning material 1 for packing, for example, a cushioning object A such as a machine, a product, fruits, vegetables, and various other articles. In the past, the honeycomb core 2 has conventionally been provided with the cell axis direction 3 directed toward the cushioning target A, and is interposed alone as it is, for example, between the outer box B and the cushioning target A. Then, when an impact load is applied from the outside, the honeycomb core 2 as the cushioning material 1 buckles to absorb and absorb the impact load and protect the cushioning object A.

[0003]

[Problems to be solved by the device]

 By the way, in such a conventional example, the following problems have been pointed out. First, the packed cushioning object A or a large impact load from the outside causes the honeycomb core 2 as the cushioning material 1 to partially buckle during use, and particularly, depending on the shape and weight of the cushioning object A, for example, The lower honeycomb core 2 was locally subjected to a load and was likely to partially buckle. Then, as shown in FIG. 5 (2), a gap C is formed between the buffer object A and the honeycomb core 2 by the amount corresponding to the space corresponding to the buckling portion 4 thus formed. Will occur. Therefore, due to such a gap C, for example, a large center-of-gravity shift occurs during transportation, and afterward, a large impact load from the outside does not smoothly be absorbed or absorbed by the honeycomb core 2. Due to such reasons, the buffer object A is easily damaged or broken, and defects are likely to occur, which is a problem.

Secondly, the cushioning material 1 using the conventional honeycomb core 2 is buffered by the buckling of the honeycomb core 2 as described above when a large strong impact load is applied from the outside. It exerts 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-mentioned cushioning function, so that there is a difficulty that such impact load cannot be absorbed or absorbed. . In other words, the honeycomb core 2 has high rigidity and strength and does not buckle when a small weak impact load that does not reach its buckling strength is applied. In this case, the impact load is relaxed and absorbed. However, it has been pointed out that the shock-absorbing object A is subjected to an impact load, and as a result, the shock-absorbing object A is apt to be damaged or broken, resulting in defects.

The present invention has been made in view of the above circumstances in order to solve the problems of the above-mentioned conventional example, and, by using a predetermined elastic material together with the honeycomb core, firstly, Even if the honeycomb core partly buckles, no gap is created between the honeycomb core and the cushioning object, and secondly, it is possible to propose a cushioning material that can absorb and absorb a relatively small impact load. To aim.

[0006]

[Means for Solving the Problems]

 The technical means of the present invention for achieving this object are as follows. First, claim 1 is as follows. That is, this cushioning material is a cushioning material that uses a honeycomb core that is a planar aggregate of hollow columnar cells, and the honeycomb core is such that the cell axial direction is directed toward the cushioning target, and together with the honeycomb core, An elastic material having resilience in the cell axis direction is used. Next, in the cushioning material according to the second aspect, in the cushioning material according to the first aspect, the elastic material is interposed in the cells of the honeycomb core. A cushioning material according to a third aspect is the cushioning material according to the first aspect, wherein the elastic material is stacked on the honeycomb core in a stacked state. A cushioning material according to a fourth aspect is the cushioning material according to the first aspect, wherein the elastic material is interposed between the honeycomb cores. A cushioning material according to a fifth aspect is the cushioning material according to the first aspect, wherein the elastic material is interposed in a deleted portion in which the honeycomb core is partially removed.

[0007]

[Action]

 Since the present invention comprises such means, it operates as follows. In this cushioning material, the honeycomb core is arranged with the cell axial direction facing the cushioning target, and an elastic material having resilience in the cell axial direction is also used. Therefore, firstly, when the honeycomb core locally receives a load due to a large shock load from the shock absorbing object or the outside and partially buckles, the shock absorbing object and the honeycomb core are corresponding to the buckling portion. Gaps are generated, but such gaps are complemented by the elastic material at the same time. That is, since the elastic material is immediately embedded and intervened in this gap due to its restoring property and repulsive force, this cushioning material does not cause any gap between the cushioning material and the object to be cushioned.

Secondly, and with this cushioning material, when a large impact load is applied, the honeycomb core buckles in this way, and the impact load is relaxed and absorbed. On the other hand, when a small weak impact load is applied, the honeycomb core does not buckle, but the elastic material is compressed to absorb and absorb the impact load. In this way, this cushioning material not only absorbs and absorbs large impact loads, but also absorbs and absorbs small weak impact loads.

Further, in claim 2, the elastic material is interposed in the cells of the honeycomb core, in claim 3, the elastic material is stacked on the honeycomb core in a stacked state, and in claim 4, the elastic material is stacked. Thirdly, in addition to the above, these cushioning materials are simple and easy in construction because they are interposed between the honeycomb cores.

Further, in claim 5, since the elastic material is interposed in the removed portion of the honeycomb core, fourthly, in addition to the above, the cushioning material places the honeycomb core and the elastic material in appropriate places. However, it is possible to properly receive a corresponding impact load, and to achieve the point described in the above-mentioned item 2 more smoothly.

[0011]

【Example】

 The present invention will be described in detail below based on the embodiments shown in the drawings. FIG. 1 is a front cross-sectional explanatory view of the present invention, FIG. 1 shows a first embodiment, and FIG. 2 shows a second embodiment. 2A and 2B are front cross-sectional explanatory views of the main part of the present invention. FIG. 2A is a third embodiment, FIG. 2B is a fourth embodiment, FIG. 3C is a fifth embodiment, and FIG. FIG. 4) shows the sixth embodiment, and FIG. 5 (5) shows various examples of the leaf spring which is the elastic member 5. FIG. 3 is a front sectional view showing a seventh embodiment of the present invention.

First, as the cushioning object A of the cushioning material 6, machines, products, fruits, vegetables, and various other articles can be considered. Further, various usage forms of the cushioning material 6 are possible, but in the first embodiment of FIG. 1 (1) and the seventh embodiment of FIG. 3, the one used for packing is shown. A cushioning material 6 is interposed between the outer case B as a case and the cushioning target A. Further, in the second embodiment of FIG. 1 (2), the one used for the pedestal is shown, and the cushioning material 6 is interposed between the pallet P and the cushioning object A thereon. Has been done.

A honeycomb core 7 is used in this cushioning material 6, and the honeycomb core 7 is a planar aggregate of hollow columnar cells 8. The honeycomb core 7 is made of aluminum, steel, lead, or other metal, or non-metal, such as glass, Kevlar, carbon, other fiber reinforced plastic (FRP), acrylic, chlorinated. Vinyl, other resin, paper or fiber as a main component, and various other materials are used. As shown in FIG. 6, the honeycomb core 7 is composed of a planar assembly of hollow columnar cells 8 each of which is divided into independent spaces by cell walls 9, and the cross-sectional shapes of the cell walls 9 and the cells 8 are In addition to the regular hexagon shown, triangles, squares, trapezoids, and other various shapes are possible. The honeycomb core 7 is generally excellent in weight ratio strength, is lightweight, has high rigidity and strength, and is excellent in rectifying effect, flatness accuracy, heat retention, sound insulation, etc., and has a surface area per unit volume. It is known to have a large number of properties. Such a honeycomb core 7 may be formed by a spreading method of cutting, applying adhesive, stacking, adhering, and spreading the base material sheet, or by corrugating the base material sheet into corrugated sheets, and then cutting, joining and laminating. It is molded by the corrugated method.

The honeycomb core 7 of the cushioning material 6 has its cell axis direction 3 facing the cushioning object A. That is, as shown in each of the drawings, the honeycomb core 7 is first oriented in the thickness direction, that is, the cell axial direction 3 having excellent rigidity and strength, toward the buffer object A, and its cell end surface is brought into contact with the buffer object A. ing. In addition, in the first embodiment shown in FIG. 1 (1) and the seventh embodiment shown in FIG. 3, two honeycomb cores 7 in the vertical direction and two honeycomb cores 7 in the horizontal direction are used vertically and horizontally, respectively. 2) In the second embodiment shown in the figure, one honeycomb core 7 is used vertically. Of course, the honeycomb core 7 of the cushioning material 6 is used in various other numbers and orientations, but in any case, the honeycomb core 7 covers the target surface of the cushioning target A to which an external impact load is applied. ing.

In this cushioning material 6, the honeycomb core 7 and the elastic material 5 having a restoring property in the cell axis direction 3 are used as an auxiliary material. As the elastic member 5, a coil spring is used in the first embodiment of FIG. 1 (1), the second embodiment of FIG. 1 (2), the third embodiment of FIG. 2 (1), etc. In addition, a leaf spring is used in the fourth embodiment of FIG. 2 (2), the sixth embodiment of FIG. 2 (4), and the seventh embodiment of FIG. (3) A foam is used in the fifth embodiment shown in the figure. Further, as the elastic material 5 of the cushioning material 6, it is conceivable to adopt various other springs such as coil springs and leaf springs, elastic materials such as foam and rubber, and other various members having resilience. It should be noted that FIG. 2 (5) shows various shapes of the leaf spring used as the elastic member 5. Further, as the material of the elastic material 5, it is possible to employ iron-based materials, metal-based materials, fiber-reinforced plastic (FRP) -based materials, resin-based materials, and various other materials.

Now, first, the cushioning material 6 of the first embodiment shown in FIG. 1 (1) is used for packing the cushioning object A as described above, and is made of an elastic material composed of a coil spring. 5 are interposed in the cells 8 of each honeycomb core 7 along the cell axis direction 3 in a compressed state. In the illustrated example, some of the cells 8 selected at appropriate intervals are selected. It is installed only in cell 8. Further, the cushioning material 6 of the second embodiment shown in FIG. 1 (2) is used for the pedestal of the cushioning object A as described above, and the elastic material 5 is the honeycomb core according to the first embodiment. It is inserted in the cell 8 of 7.

Next, in the cushioning material 6 of the third embodiment shown in FIG. 2A, the aggregate of the elastic material 5 made of the coil spring is stacked with the honeycomb core 7 in a two-stage stacked state. In the illustrated example, the honeycomb core 7 is located on the cushioning object A side. Further, in the cushioning material 6 of the fourth embodiment shown in FIG. 2 (2), the elastic material 5 and the honeycomb core 7 are stacked in a two-stage stacked state as in the third embodiment. In the fourth embodiment, a leaf spring is used as the elastic material 5, and the honeycomb core 7 is used as a sandwich panel in which the surface plates 10 are adhered on both sides. Further, in the cushioning material 6 of the fifth embodiment shown in FIG. 2 (3), the elastic material 5 and the honeycomb core 7 are stacked in a two-stage stacked state as in the third and fourth embodiments. However, in this fifth embodiment, a foam is used as the elastic material 5, and the honeycomb core 7 is used as a sandwich panel with the face plate 10.

Next, in the cushioning material 6 of the sixth embodiment shown in FIG. 2 (4), the elastic material 5 is interposed between the honeycomb cores 7, and a leaf spring is used as the elastic material 5. As the honeycomb core 7, a sandwich panel with a face plate 10 is used. Moreover, in the cushioning material 6 of the seventh embodiment shown in FIG. 3, each honeycomb core 7 is partially cut and removed, and the elastic material 5 is interposed along the removed portion 11 of the honeycomb core 7. ing. In addition, although the deleted portion 11 in this illustrated example is formed in a wave shape, various deleted forms are also possible other than this, and the elastic member 5 is not limited to the illustrated leaf spring, and the deleted portion 11 A foam or a coil spring may be inserted in and filled in 11.

The present invention is configured as described above. Then it becomes as follows. That is, in the cushioning material 6 of each of the embodiments, the honeycomb core 7 is arranged with the cell axis direction 3 facing the cushioning object A 1, and the elastic material 5 having the restoring property in the cell axis direction 3 is used together. It is coming. The cushioning material 6 is used for packing the cushioning target A and other purposes, and has the following first and second configurations.

First, during use, the honeycomb core 7 is locally subjected to a load due to a large shock load from the cushioning target A or the outside, particularly in accordance with the shape and weight of the cushioning target A, and is partially seated. If you succumb, it looks like this: In this case, the portion corresponding to the buckling portion 4 (see FIG. 5 (2) in FIG. 5) of the honeycomb core 7 formed in this way and corresponding to the space is provided between the cushioning target A and the honeycomb core 7. A gap C (see (2) in FIG. 5) is generated, but such a gap C is complemented by the elastic material 5 at the same time as the generation. That is, in the cushioning material 6, the elastic material 5 is immediately embedded and filled in the gap C by the resilience and repulsion force, and the honeycomb core buckled with the cushioning object A. As a result, the elastic member 5 prevents the gap C between the cushioning object A and the cushioning member 6 from being formed as in the conventional example of this kind shown in FIG. As described above, in the cushioning material 6 of each embodiment (see (1) and (2) of FIG. 1), even if the honeycomb core 7 buckles during use, the resilience and repulsive force of the elastic material 5 cause The gap C between the cushioning target A and the conventional example does not occur.

Secondly, and with this cushioning material 6, when a large impact load greater than the buckling strength of the honeycomb core 7 is applied, the honeycomb core 7 buckles in this way and the buckling progresses. By doing so, the cushioning function is exerted, and the impact load is received and relaxed and absorbed by the honeycomb core 7. On the other hand, when a comparatively small weak impact load that does not reach the buckling strength of the honeycomb core 7 is applied, the elastic function 5 is compressed instead of buckling the honeycomb core 7 and exerts a cushioning function. Then, the elastic material 5 receives such a shock load and relaxes and absorbs it. As described above, the cushioning material 6 of each of the embodiments (see (1), (2), (3), and (4) in FIG. 2) can of course absorb and absorb a large strong impact load. Therefore, it can absorb and absorb comparatively small impact loads, and can easily cope with impact loads of various sizes, large, small, and strong.

Furthermore, in the cushioning material 6 of the first and second embodiments, the elastic material 5 is interposed in the cells 8 of the honeycomb core 7, and the cushioning material 6 of the third, fourth, and fifth embodiments is used. Then, the elastic material 5 is stacked on the honeycomb core 7 in a stacked state, and in the cushioning material 6 of the sixth embodiment, the elastic material 5 is interposed between the honeycomb cores 7. It looks like this: That is, thirdly, these cushioning materials 6 have the above-mentioned first, second, and third constructions by interposing the elastic material 5 in the cells 8 of the honeycomb core 7 or by interposing and stacking on the honeycomb core 7. The above points can be realized, and the honeycomb core 7 does not need to be processed at all, and its configuration is simple and easy.

Further, in the cushioning material 6 of the seventh embodiment, since the elastic material 5 is interposed in the removed portion 11 of the honeycomb core 7, the following is obtained in addition to the above. That is, fourth, the cushioning material 6 has a honeycomb core 7 that receives a large strong impact load and an elastic material 5 that receives a small weak impact load, and they are arranged in proper positions so that the honeycomb core 7 and the elastic material 5 are opposed to each other. It is possible to properly receive the shock load corresponding thereto, and the point described in the above-mentioned second can be realized more smoothly.

[0024]

[Effect of device]

 As described above, the cushioning material according to the present invention exhibits the following effects by using the predetermined elastic material together with the honeycomb core. First, even if the honeycomb core partially buckles during use, no gap is created between the honeycomb core and the cushioning target. In this way, with this cushioning material, the gap between the cushioning material and the object to be cushioned is suppressed, so that the shift of the overall center of gravity during transportation is prevented, and after impact, the impact load from the outside is smoothly alleviated and absorbed. As a result, the object to be buffered is less likely to be damaged or broken, and the defect is less likely to occur, so that the object is reliably protected. Secondly, it is possible not only to absorb and absorb large strong impact loads, but also to absorb and absorb relatively small weak impact loads. Therefore, this cushioning material can easily handle both large and small impact loads of various sizes, and from this aspect as well, the cushioning object is less likely to be damaged or broken, and the defect is less likely to occur. Protected by.

Further, in the cushioning material according to claims 2, 3 and 4, the elastic material is interposed in the cells of the honeycomb core, stacked in a stacked state with the honeycomb core, or interposed between the honeycomb cores. By doing so, in addition to the above, the following effects are exhibited. That is, thirdly, these shock absorbing materials are particularly simple and easy in construction, easy to manufacture, and excellent in cost and the like.

Further, in the cushioning material according to the fifth aspect, the elastic material is interposed in the removed portion of the honeycomb core, so that the following effect is exhibited in addition to the above. That is, fourthly, this cushioning material can easily deal with shock loads of various sizes such as large, small, and strong, so that the cushioning object is less likely to be damaged, broken, or defective, and extremely reliable. Be protected. As described above, the effects of the present invention can be remarkably large, such as the problems existing in this type of conventional example are eliminated.

[Brief description of drawings]

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

2A and 2B are front cross-sectional explanatory views of a main part of a cushioning material according to the present invention, wherein FIG. 1A is a third embodiment, FIG. 2B is a fourth embodiment, and FIG. FIG. 4 shows a sixth embodiment of the present invention, and FIG. 5 shows various examples of leaf springs used therein.

FIG. 3 is a front cross-sectional explanatory view of a cushioning material according to the present invention, showing a seventh embodiment.

FIG. 4 is a front cross-sectional explanatory view showing an example of a conventional cushioning material, showing a state at the beginning of packaging.

5A and 5B are front cross-sectional explanatory views showing another example of the conventional cushioning material, in which FIG. 1A shows a state at the beginning of packing, and FIG. 2B shows a state with a gap.

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

[Explanation of symbols]

 1 Buffer material (conventional example) 2 Honeycomb core 3 Cell axial direction 4 Buckling part 5 Elastic material 6 Buffer material (thing of this invention) 7 Honeycomb core 8 Cell 9 Cell wall 10 Surface plate 11 Deleted part A Buffer object B Outer box C Gap P Pallet

Claims (5)

[Scope of utility model registration request] 1. A cushioning material using a honeycomb core, which is a planar aggregate of hollow columnar cells, wherein the honeycomb core is oriented with the cell axial direction toward the cushioning object, and the honeycomb core A cushioning material, characterized in that an elastic material having resilience in the cell axis direction is used. 2. The cushioning material according to claim 1, wherein the elastic material is interposed in the cells of the honeycomb core. 3. The cushioning material according to claim 1, wherein the elastic material is stacked on the honeycomb core in a stacked state. 4. The cushioning material according to claim 1, wherein the elastic material is interposed between the honeycomb cores. 5. The cushioning material according to claim 1, wherein the elastic material is interposed in a deleted portion obtained by partially deleting the honeycomb core.