JPH07251867A - Cushioning material for packing, and packing method therewith - Google Patents

Abstract

PURPOSE:To solve problems involved in a conventional cushioning material for packing, to make handling of the cushioning material in packing easy, and to make the cushioning material compact when unused. CONSTITUTION:A cushioning material for packing to fill vacant spaces in a packing case in which a product is housed is made up of a balloon-like rubber member that is deformed and inflated with gaseous body pressed therein through an injection port 2 for injection of pressurized gaseous body provided thereto. The balloon-like rubber member l forms on its one side a support layer 1a that is hardly deformed and inflated by pressurized gaseous body and on its other side an inflatable layer 1b that is deformed and inflated more easily than the support layer 1a for filling the vacant space. As the vacant spaces in the packing case can be filled with the cushioning material for packing deformed and inflated with air or the like pressed therein, handling becomes easy as compared with a conventional type of cushioning material using a great deal of materials. Furthermore, as the cushioning material can be put in compact state before and after the use, storage and disposal become easy for the cushioning material.

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 used for protecting products such as bottles of Western liquor and various products such as home appliances from shocks during transportation and the like. Regarding how to pack products.

[0002]

2. Description of the Related Art Conventionally, cardboard boxes, plastic boxes, etc. have been used as packaging containers for products such as bottles of Western liquor and home appliances, and in particular, a plurality of bottle products using such packaging containers. In the case of packaging, a cushioning material for packaging is generally used in order to prevent the product from being damaged by an impact during transportation.

As such a cushioning material for packing, conventionally, thin paper such as newspaper is rolled to have elasticity, expanded polystyrene having a chip shape or a spherical shape, and a large number of independent air cushions for shock absorption. A synthetic resin sheet material having layers is used.

By filling such a shock absorbing material in the void portion of the packaging container in which the product is stored, it is possible to prevent the product from moving during transportation and to prevent the product from being damaged.

However, each of these cushioning materials requires a large volume for filling all voids, and requires a wide space for storing the material. Also, since it is a large amount, it takes time to handle it at the time of packaging, and further,
Since it has the same volume as before and after use, it is difficult to store and process it.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the conventional packing cushioning material, to facilitate the handling of the cushioning material at the time of packaging, and to make the packaging material bulky when not in use. A cushioning material for use and a packaging method using the same.

[0007]

In order to solve the above-mentioned problems, a packing cushioning material of the present invention is a packing cushioning material for filling a void portion of a packing container in which a product is housed, which is for injecting a pressure gas. It has an inlet and is expanded and deformed by press-fitting of the gas,
It is characterized by comprising a balloon-shaped rubber member filling the void.

The balloon-shaped rubber member has a support layer formed on one surface thereof, which is less likely to be expanded and deformed by pressure gas, and an expansion layer which is more easily expanded and deformed than the support layer and which fills the voids, on the other surface. can do.

In this case, the expansion layer may have a structure in which a plurality of circular convex portions, the periphery of which is in close contact with the support layer, and the respective convex portions communicate with each other by an air passage.

Further, according to the product packaging method of the present invention, the product is housed in a product packaging container, and the gas injection port of the packaging cushioning material is disposed on the upper part of the product so as to face the outside, and then the product is packaged. It is characterized in that the opening / closing lid of the product packaging container is closed, and in this state, gas is press-fitted from the injection port of the rubber member to expand and deform, thereby filling the void portion of the packaging container.

[0011]

In the packing cushioning material of the present invention, when a gas such as air is press-fitted into the rubber member during use, the volume becomes a volume that expands and deforms to close the void portion of the packaging container. Can be in a contracted state.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be specifically described below with reference to the embodiments shown in the drawings. FIG. 1 is a perspective view of a packing cushioning material according to a first embodiment of the present invention when not in use, and FIG.
FIG. 3 is a longitudinal sectional view of the packing cushioning material shown in FIG. 3, and FIG. 3 is a perspective view showing a state where air is pressed into the packing cushioning material shown in FIG.

As shown in FIGS. 1 and 2, the packing cushioning material 1 of this embodiment is made of a balloon-shaped rubber latex having an injection port 2 for injecting a pressure gas, and a rectangular sheet when not in use. It is a state. As shown in the sectional view of FIG. 2, the cushioning material 1 has an upper surface 1a having a thickness of 1.00 to 1.50 mm,
The lower surface 1b has a thickness of 0.01 to 0.06 mm, whereby the upper surface 1a is a supporting layer that is less likely to expand and deform, and the lower surface 1b is an expanding layer that is about 50 times more expandable and deformable than the upper surface.

In addition to changing the thickness of the upper surface 1a and the lower surface 1b, a synthetic resin material having rigidity such as K nylon and having excellent airtightness can be used for the upper surface 1a, and one surface of a rubber material having the same thickness can be used. The upper surface 1a can be prevented from being stretched by bonding another material only to the chisel.

By thus forming the support layer and the expansion layer on the upper surface 1a and the lower surface 1b, respectively, when air is pressed in from the inlet, the upper surface 1a is hardly deformed as shown in FIG. Only 1b is in a state of being greatly expanded downward.

3 is a string for removing air, which is embedded in the upper surface 1a of the packing cushioning material 1 from the inside to the outside of the packing cushioning material 1 at the time of molding, and the string 3 can be pulled after use. As a result, the upper surface 1a of the packing cushioning material 1 is broken, and the expanded gas in the packing cushioning material 1 can be exhausted at once.

FIG. 4 shows a packaging container 10 formed of corrugated cardboard, plastic or the like, which has a container body 11 for storing products and an opening / closing lid 12 for closing the upper surface thereof. Cushioning material for packing 1 mentioned above
The opening 13 for exposing the injection port 2 for injecting the pressurized gas to the outside is provided, and the opening 13 is further provided with a seal 14 for closing the opening 13 after packaging.

Next, with reference to FIG. 5, a packing procedure of a product using the packing cushioning material 1 and the packing container 10 described above will be described.

First, as shown in FIG. 5A, the opening / closing lid 1
Products S _{1 to} S with different shapes with 2 open
₄ is stored in the container body 11 of the packaging container 10. Next, as shown in FIG. 5B, the packing cushioning material 1 is arranged above the products S _{1 to} S ₄ with the gas injection port 2 thereof facing the outside. Further, as shown in FIG. 5 (c), the opening / closing lid 12 of the packaging container 10 is closed, and in this state, as shown in FIG. 5 (d), gas is press-fitted from the injection port 2 of the packaging cushioning material 1. Then, it is inflated and deformed to fill the void portion of the packaging container 10, the injection port 2 is tied, and then returned to the inside of the container body 11, and the opening 13 of the container body 11 is closed by a seal 14. This completes the product packaging. At the time of taking out the product, the air inside the packing cushioning material 1 can be easily evacuated by opening the opening / closing lid 12 and then pulling out the string 3 for bleeding air.

As described above, in the first embodiment, the void portion of the packaging container 10 can be filled by press-fitting air or the like into the packing cushioning material 1 to expand and deform it. As a result, compared to the conventional one using a large amount of material, its handling becomes easier, and it can be in a contracted state before use and after use, not in use,
The product can be stored and disposed of easily.

FIG. 6 is a perspective view showing a second embodiment of the present invention,
FIG. 7 is a sectional view. The cushioning material 21 for packing of this embodiment is
As shown in FIGS. 6 and 7, an injection port 2 for injecting a pressure gas is provided.
A rubber latex material formed by molding a large number of semicircular convex portions 23 having 2 is attached to the support layer 21a. The air passages 24 communicate with each other between the plurality of convex portions 23. This cushioning material 21
7, the upper surface 21a has a thickness of 1.00 to 1.50 mm and the lower surface 21b has a thickness of 0.01, as clearly shown in the sectional view of FIG.
The upper surface 21a is a support layer that is less likely to expand and deform, and the lower surface 21b is an expansion layer that is about 50 times more expandable and deformable than the upper surface 21a.

Note that, in addition to changing the thicknesses of the upper surface 21a and the lower surface 21b, the upper surface 21a may be made of a material or a structure that does not easily expand, as in the first embodiment.

In this way, on the upper surface 21a and the lower surface 21b,
By forming the support layer and the expansion layer, respectively, when air is pressed in from the inlet 22, the upper surface 21a is hardly deformed as shown by the broken line in FIG. 7, and only the convex portion 23 of the lower surface 21b is largely upward. It will be inflated. As in the first embodiment, the air bleeding cord 3 is provided on the upper surface 21a.

FIG. 8 shows a state in which the product is packed in the packing container 10 shown in FIG. 4 using the packing cushioning material 21 of the second embodiment. First, with the opening / closing lid 12 opened, the products S _{1 to} S ₄ having different shapes are housed in the container body 11 of the packing container 10, and the packing cushioning material 21 is placed on the support layer 21 a and the expansion layer. 21b is placed in the upper part of the packaging container 10 in a state of being downward, the inlet 22 is taken out from the opening 13, and air is blown from the inlet 22 with the lid 12 closed. Only the portion where the convex portion 23 is formed swells. Each convex portion 23 has an air passage 24
Since they are communicated with each other, the air is supplied to the entire convex portion 23 only by blowing the air from the one injection port 22. As the convex portion 23 expands and extends downward,
Even though the products S _{1 to} S ₄ have different heights, the space around each product is filled with the expanded convex portion 23, and the products S ₁ to S _{4 are}
The movement of S ₄ will be restricted.

In this state, after the injection port 22 is tied up, the protruding portion of the injection port 22 is returned to the inside of the container body 11, and the opening 13 of the container body 11 is closed by the seal 14. This completes the product packaging. At the time of taking out the product, the air inside the packing cushioning material 1 can be easily evacuated by opening the opening / closing lid 12 and then pulling out the string 3 for bleeding air.

As described above, in the second embodiment, since the plurality of convex portions expand downward uniformly,
Compared with the case where the whole is swollen as in the embodiment, the convex portion also enters the small gap, and the product is restrained in the immovable state, and the cushioning effect is enhanced.

[0027]

According to the present invention, the following effects can be obtained.

(1) It is possible to fill the voids of the packaging container by press-fitting air or the like into the packaging cushioning material and expanding and deforming it, and handling it as compared with the conventional one using a large amount of material. Moreover, the product can be in a contracted state before use and after use, and can be in a contracted state, which facilitates storage and disposal of the product.

(2) The overall weight can be reduced and the packaging time can be shortened.

(3) The overall size can be made compact and the storage space can be effectively used.

(4) Since the amount of the cushioning material used is small, it is possible to contribute to environmental problems such as the amount of dust generated is reduced.

(5) By providing a large number of convex portions on the expansion layer and expanding each of the convex portions, the cushioning material can enter into the fine gaps and the cushioning effect can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a packing cushioning material according to a first embodiment of the present invention when not in use.

FIG. 2 is a vertical sectional view of a cushioning material for packing according to the first embodiment.

FIG. 3 is a perspective view showing a state in which air is pressed into the packing cushioning material of the first embodiment.

FIG. 4 is a perspective view of a packaging container.

FIG. 5 is an explanatory diagram of a product packing procedure using a packing cushioning material and a packing container.

FIG. 6 is a perspective view of a packing cushioning material according to a second embodiment of the present invention when not in use.

FIG. 7 is a longitudinal sectional view of a cushioning material for packing according to a second embodiment.

8 is a sectional view showing a packed state of a product using the packing cushioning material of the second embodiment and the packing container of FIG.

[Explanation of symbols]

1 packing cushioning material, 1a upper surface (support layer), 1b lower surface (expansion layer), 2 inlet, 3 air vent string, 10
Packing container, 11 container body, 12 opening / closing lid, 13 opening, 14 seal, 21 packing cushioning material, 21a upper surface (support layer), 21b lower surface (expansion layer), 22 inlet, 23 convex portion, 24 air passage

Claims (4)

[Claims] 1. A cushioning material for packing that fills a void portion of a packaging container that contains a product, and has a balloon shape that has an injection port for injecting a pressure gas and expands and deforms when the gas is press-fitted to fill the void portion. A cushioning material for packing made of rubber. 2. The balloon-shaped rubber member has, on one surface, a support layer that is less likely to be expanded and deformed by pressure gas, and on the other surface is an expansion layer that is more easily expanded and deformed than the support layer and fills the void. The cushioning material for packing according to claim 1, wherein: 3. The packing cushion according to claim 2, wherein the expansion layer is composed of a large number of circular protrusions whose periphery is in close contact with the support layer, and the protrusions communicate with each other by air passages. Material. 4. The product is housed in a product packaging container, and the packing cushioning material according to claim 1 or 2 is placed on the upper part of the product with the gas injection port facing the outside. Closing the opening / closing lid of the product packaging container, and further in this state, gas is press-fitted from the gas injection port of the rubber member to expand and deform, thereby filling the void portion of the packaging container. Method.