JPH04311471A - Shock absorber for protection of article - Google Patents

Abstract

PURPOSE:To obtain a shock absorber disposable without problems, excellent in protecting function, effective in utilization of resources and excellent in economical property, by combining a cylindrical shock absorbing member made of paper an elastic shock absorbing material surrounding the outer periphery of the cylindircal shock absorber and made of a higher circular bag than the cylindrical shock absorber. CONSTITUTION:A circular elastic bag 20 forming a rubber doughunt is used as an elastic buffering material and a cylindrical shock absorber 30 made of paper is used for a cylindrical shock absorbing material to constitute a shock absorber 10. And a valve 22 charging or discharging air is fitted at the circular elastic bag 20. In this time, the circular elastic bag 20 is made higher a little than the cylindrical paper shock absorber. The shock absorbers 10 are arranged at the four corners of the inner bottom of the outer bag 40 made of cardboard box or the like and the inner box 50 containing articles on the shock absorber 10 is placed for transpotation and storage.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention relates to a shock absorbing device for protecting goods, and more specifically, when transporting and handling various mechanical parts, the present invention is made up of the parts or an inner box containing the parts, and a cardboard box. Interposed between the exterior body and
The present invention relates to a shock absorbing device for protecting an article, which absorbs shocks, vibrations, etc. of external forces applied to an exterior body, and prevents the protected article from being damaged.

0002

[Prior Art] Conventionally, shock absorbers have been used to protect items that are sensitive to shocks and vibrations, such as home appliances, precision measuring instruments, and information equipment, during transportation and handling. A foamed plastic block or a corrugated paper cut or folded into an appropriate shape is interposed between the protective article and the exterior body.

[0003] Corrugated paper has the ability to effectively absorb impact energy by buckling when a large impact force is applied to it, but it has poor elastic deformability, so it is not suitable for protective articles. There may be a gap between the protector and the exterior body, causing looseness, and vibrations may be directly transmitted to the protected item, or the protected item may rub against the shock absorber or surrounding objects, causing damage to the protected item. This has the disadvantage that the protected article cannot be sufficiently protected.

[0004] On the other hand, foamed plastic has a certain degree of elasticity, so it comes into contact with the protective article elastically, and
It has the function of reliably supporting the protected item in a fixed position so that it does not move even when subjected to vibrations, etc., and also does not cause permanent deformation when a large impact force is applied, similar to the above-mentioned corrugated paperboard. It also has the ability to effectively absorb impact energy, making it suitable as a material for shock absorbers.

[0005]

[Problems to be Solved by the Invention] However, once a large impact force is applied to foamed plastic and it becomes permanently deformed, a gap remains between it and the protective article, causing the protective article to become elastic. The function of abutting against and supporting in a fixed position becomes impossible. Therefore, shock absorbers using foamed plastics have not always been sufficient in terms of the protection function for articles. Furthermore, a shock absorber that has undergone permanent deformation in this manner could not be reused even if it was recovered after use.

[0006] For this reason, conventional cushioning devices made of foamed plastic are
It was disposed of as is, but it was extremely uneconomical and a waste of resources. Moreover, foamed plastics are bulky and difficult to weather, making them undesirable for buried disposal. Furthermore, if they are disposed of by incineration, they generate high heat, damaging the incinerator, and generate toxic gases, polluting the environment.

[0007] Therefore, the object of the present invention is to solve the above-mentioned problems of the conventional shock absorbing device, to provide a good protection function for articles, to avoid the problems of disposal unlike foamed plastics, and to realize effective use of resources and economy. It is an object of the present invention to provide a shock absorbing device for protecting articles which is also excellent in terms of performance.

[0008]

[Means for Solving the Problems] A shock absorbing device for protecting articles according to the present invention which solves the above-mentioned problems includes a columnar shock absorber made of paper material, a columnar shock absorber that surrounds the outer periphery of the columnar shock absorber, and a backer than the columnar shock absorber. It is characterized by consisting of a highly elastic shock absorber.

[0009] The columnar shock absorber has a columnar shape and is made of relatively stiff paper material such as cardboard or corrugated paper. Specifically, cardboard or corrugated paper wound into a cylindrical or polygonal tube shape, or a plurality of layers of corrugated cardboard cut into a polygonal or cylindrical shape are used. If the direction parallel to the surface of the paper material is the axial direction of the columnar shock absorber, that is, the direction in which external force is applied during use, the buckling load can be increased, making it possible to absorb large impact forces. .

[0010] The columnar shock absorber may be provided with fixing means for fixing it to the inner surface of the exterior body or the surface of the protective article so that it does not shift or move during use. As the fixing means, fixing means employed in ordinary shock absorbing devices and packaging materials, such as double-sided tape, adhesive, and staples, are used. It is convenient if the ends of the columnar buffer bodies are provided with flat surfaces for pasting double-sided tape or applying adhesive. Furthermore, if an engaging portion that can engage with each other is provided on the surface of the protective article or the exterior body and the columnar shock absorber, it becomes possible to fix the columnar shock absorber in a detachable manner.

[0011] The elastic shock absorber may be anything that can exhibit good elasticity, such as a block body made of an elastic material such as rubber, or an elastic bag body made of an elastic material such as rubber and sealed with air. good. The elastic buffer has a shape or structure that can surround the outer periphery of the columnar buffer. Specifically, one elastic shock absorber forms a continuous ring,
In addition to the so-called donut-like shape, it may also be a bead-like shape in which a plurality of small elastic buffers are connected in a ring. If the elastic shock absorber is attached so as to tightly surround the outer periphery of the columnar shock absorber, it will not shift or move even if special fixing means are not provided. It is also possible to provide temporary fixing means for removably fixing the device. This fixing means can also be the same double-sided adhesive tape or various engagement structures as described above.

In the case of a block-shaped elastic shock absorber, in addition to a solid one, it is also possible to use one with spaces or grooves provided inside to improve elastic deformation characteristics. In the case of an elastic bag, if an air supply/exhaust valve is provided, the air pressure of the sealed air can be changed to adjust the elastic deformation characteristics, or the air can be removed when not in use to reduce the bulk. Can be done.

In the present invention, the height of the elastic buffer is set higher than the height of the columnar buffer. Here, the height refers to the length measured in the axial direction of the columnar buffer when the elastic buffer and columnar buffer are combined, the so-called height. In other words, when the shock absorber is in use, the shock absorber may be placed not only on the bottom side of the protected article but also on the side or top side, so in those situations, the so-called vertical height measured upward from the bottom surface is It is different from Sato. The difference in height between the elastic shock absorber and the columnar shock absorber depends on the permissible load of the protected article and the external force conditions when using the shock absorber, and the elastic shock absorber's ability to support the protected article and the columnar shock absorber's ability to absorb impact force. It may be determined by considering the function.

[0014]

[Function] Since the columnar shock absorber is made of paper material, it has a high ability to absorb impact force due to buckling deformation, whereas the elastic shock absorber
Since it deforms and restores itself elastically, it can absorb vibrations etc. well and can elastically abut against protective articles.

[0015] Therefore, if there is an elastic buffer around the columnar buffer and the elastic buffer is taller than the columnar buffer, then
The exterior body and the protective article are connected by an elastic buffer. The elastic shock absorber can elastically abut the protective article and reliably support the article in a fixed position so as to prevent it from slipping or moving. In this state, when an external force is applied, vibrations and relatively small forces can be well absorbed by the elastic deformation of the elastic buffer.

[0016] Furthermore, when a large instantaneous impact force is applied and the amount of elastic deformation of the elastic shock absorber becomes large, both the article and the exterior body come into contact with the columnar shock absorber, and the columnar shock absorber becomes seated. By bending and deforming, impact energy can be absorbed well. Even if the columnar cushioning body undergoes permanent deformation due to buckling, if the elastic cushioning body elastically restores its original shape, the protective article will be reliably supported in its original position.

[0017] In other words, the present invention utilizes the characteristics of the elastic shock absorber, which has excellent vibration absorption performance and support function for protective articles, and the columnar shock absorber, which has excellent impact force absorption performance, to achieve excellent performance in both cases. This results in a shock absorbing device that can perform effectively.

After the shock absorber is used for transporting and storing protected items, it is necessary to discard the columnar shock absorbers that have undergone buckling deformation, but since the elastic shock absorbers only undergo elastic deformation, they cannot be discarded many times. But it can be reused. Therefore, it is possible to use the device repeatedly by simply replacing the relatively inexpensive columnar buffer made of paper material. The discarded columnar buffer is made of paper material and can be easily incinerated, making it easy to dispose of.

[0019]

Embodiments Next, embodiments of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 to 5, a donut-shaped annular elastic bag 20 made of rubber is used as an elastic buffer, and a paper tube buffer 30 made of cardboard rolled into a cylindrical shape is used as a columnar buffer. The annular elastic bag body 20 and the paper cylinder cushioning body 30 constitute a shock absorbing device 10.

[0021] The annular elastic bag body 20 is equipped with a supply/exhaust valve 22 that allows air to be pumped in and out.

The paper tube buffer 30 is assembled by cutting and bending cardboard, as shown in FIGS. 3 to 5. First, as shown in the unfolded state of FIG. 3, cardboard is cut into a wide rectangular portion 32a and a narrow rectangular portion 34a.
A developed body 30a is produced in which the parts are partially connected. From this developed body 30a, a rectangular portion 32a and a rectangular portion 34a are formed.
By bending the rectangular portion 32a at right angles and rolling the rectangular portion 32a into a cylindrical shape, as shown in FIGS. A paper cylinder cushioning body 30 is made. Cylinder part 32
If the seams are joined with adhesive, there is no need to worry about them opening even when a load is applied. In addition, an annular elastic bag body 20 is provided on the outer periphery.
Since the cylindrical body part 32 will not open if it is fitted, the joints of the cylindrical body part 32 do not necessarily have to be joined. Band-shaped part 3
It is convenient to fix the paper tube buffer 30 to the mounting location by pasting double-sided tape or applying adhesive to the back side of the paper tube 4 and covering it with release paper.

As shown in FIG. 2, the annular elastic bag 20 has
It is slightly taller than the paper tube buffer 20.

As shown in FIG. 1, when using the shock absorber 10, the shock absorber 10 is placed at appropriate locations such as the four corners on the inner bottom surface of an exterior body 40 made of a cardboard box or the like. As shown in FIG. 2, the back side of the strip portion 34 of the paper cylinder cushioning body 30 is fixed to the exterior body 4 with a fixing means 36 such as double-sided tape or adhesive.
If it is fixed on the surface of 0, it will be positioned reliably. If the annular elastic bag body 20 is fitted so as to surround the outer periphery of the paper tube shock absorber 30, the attachment of the shock absorber 10 is completed. Buffer device 1
After placing an article such as a mechanical part or an inner box 50 (hereinafter referred to as a protected article 50) containing the article on the zero, and sealing the outer package, the article is transported, stored, or the like. Although not shown, the shock absorber 10 may be attached to the inner surface of the exterior body 40 on the side or top side of the protective article 50.

As shown in FIG. 2, the annular elastic bag 20 is in tight contact with the exterior body 40 and the protective article 50, and the protective article 50 is held inside the exterior body 40 by the elastic force of the annular elastic bag 20. It is supported in a fixed position. Further, there is a slight gap between the paper tube buffer 30 and the protective article 50. If an external force is applied during transportation in this state, vibrations and small external forces are well absorbed by the annular elastic bag body 20. However, when a large impact force is applied, the annular elastic bag 20 is greatly deformed, and the protective article 50 comes into contact with the paper tube buffer 30. The paper cylinder cushioning body 30 absorbs impact energy well by causing buckling deformation, so the annular elastic bag body 20 does not deform any further and the protective article 50 is not shaken or moved significantly. I don't have to worry about it. When the impact force is removed, even if the paper tube buffer 30 remains buckled, the annular elastic bag 20 elastically restores itself and returns the protective article 50 to its original position.

When the transportation of the protective article 50 is completed, the protective article 50 is taken out from the outer package 40, and then the paper cylinder cushioning body 3 is removed.
The annular elastic bag body 20 is removed from the bag 20, and the paper tube buffer body 30 which has undergone buckling deformation may be disposed of together with the exterior body 40 or by being removed from the exterior body 40. The annular elastic bag 20 can be reused by combining it with a new paper tube buffer 30. When transporting or storing the annular elastic bag 20 to a reuse site, remove air from the air supply/discharge valve 22 and keep the annular elastic bag 20 in a flat state to reduce bulk. It is lower in price and easier to handle, reducing transportation and storage costs.

Next, FIG. 6 and subsequent figures show a shock absorbing device 10 whose structure is partially different from that of the above embodiment.

First, in the embodiment shown in FIG.
The same material as in the previous embodiment is used, and instead of the paper cylinder cushioning body 30, a laminated corrugated cardboard cushioning body 60, which is made by stacking a large number of corrugated cardboards and cutting them into a cylinder or a prismatic shape, is used. The laminated cardboard buffer 60 has higher shock absorption performance than the paper tube buffer 30. Further, in this embodiment, corrugated cardboard sheets 62, 62 are sandwiched between the protective article 50 and the shock absorber 10, and between the shock absorber 10 and the exterior body 40. In this way, the shock absorber 10 according to the present invention has the following features:
It is also possible to use it in combination with other various buffering means.

In the embodiment shown in FIG. 6, the corrugated paperboard of each layer of the laminated cardboard cushioning body 60 is arranged parallel to the axial direction (vertical direction in the figure) of the cushioning body 60, but as shown in FIG. , a structure in which each layer of corrugated paper is arranged in a direction perpendicular to the axial direction of the buffer body 60 may be used. However, Figure 6
This structure is less likely to cause buckling deformation.

In the embodiment shown in FIG. 8, spherical elastic bags 80 are arranged in an annular manner, and each spherical elastic bag 80 is connected and integrated with a string, so that the spherical elastic bags 80 are shaped like beads. The connected structure forms an elastic shock absorber.

In the embodiment shown in FIG. 9, the elastic bags 20, 80
Instead, a block-shaped elastic body 70 made of rubber is used that utilizes the elasticity of the material itself. Block-shaped elastic body 70
For example, a ring-shaped one integrally molded, or one made by combining rod-shaped pieces into a rectangular shape and joining them together is used. Inside the block-shaped elastic body 70, there are many voids 7.
2 is provided. This gap 72 is effective in adjusting the elastic deformation characteristics of the block-shaped elastic body 70.

[0032]

Effects of the Invention According to the article protection shock absorbing device according to the present invention as described above, the elastic shock absorber can reliably support the protected article in a fixed position and can satisfactorily absorb relatively small forces such as vibrations. By using this in combination with a columnar shock absorber made of a paper material that can satisfactorily absorb large impact forces through buckling deformation, the article can be well protected.

In particular, with conventional shock absorbers made of paper or foamed plastic, if a large impact force is applied and the material is permanently deformed, a gap will be created between the protective article and the shock absorber, causing rattling. Thereafter, the protected article may be damaged, and the article may no longer be adequately cushioned and protected. However, in the present invention, even after the columnar shock absorbers buckle, the function of the elastic shock absorbers remains unchanged, so that the article can be sufficiently buffered and protected.

The columnar shock absorber and the elastic shock absorber are made up of separate parts, and even if the columnar shock absorber is permanently deformed and needs to be replaced, the elastic shock absorber can be used repeatedly. Coupled with the low cost of the columnar buffer made of this material, it is very economical. In addition, since the columnar shock absorbers can be easily disposed of by incineration, etc., unlike conventional foamed plastics, there is no problem in disposing of them.

[Brief explanation of drawings]

[Fig. 1] A perspective view showing an embodiment of the present invention.

[Figure 2] Enlarged cross-sectional view in use condition

[Figure 3] Developed view of paper tube buffer

[Figure 4] Plan view of the assembled state as above

[Figure 5] Side view of the same as above

[Fig. 6] Enlarged sectional view of another embodiment in use

[Figure 7
】An enlarged cross-sectional view of another embodiment in use

[Fig. 8] Enlarged cross-sectional view of another embodiment in use

[Fig. 9] A perspective view showing another embodiment.

[Explanation of symbols]

10 Buffer device 20 Annular elastic bag (elastic buffer) 30 Paper tube buffer (column buffer) 40 Exterior body 50 Protective article 60 Laminated cardboard buffer (column buffer) 70 Block-shaped elastic body (elastic buffer) 80 Spherical elastic bag (
elastic buffer)

Claims (1)

[Claims] 1. A shock absorbing device for protecting an article, comprising a columnar shock absorber made of paper material, and an elastic shock absorber surrounding the outer periphery of the columnar shock absorber and being taller than the columnar shock absorber.