JPH0144456Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a hollow cushioning material for packaging, and more specifically, it has a bellows in a part and has means for fixing itself to a packaging container. The present invention relates to a cushioning material for packaging that has an excellent cushioning effect.

BACKGROUND TECHNOLOGY A packaging cushion is placed inside a packaging container and protects the stored items by coming into contact with the stored items. Conventional packaging cushions protect the stored items by applying foam resin to the shape of a part of the stored items and their shape. A concave structure similar to the one used is used.

Problems that the invention aims to solve This foamed resin is often made by foaming styrene-based resin, which is widely used because it can be molded in inexpensive molds. This type of foamed resin is made by foaming bead-shaped resin by heating steam and compressing the foamed resin with the foaming pressure, so there is almost no adhesion between each bead and it easily breaks due to external force. do. In particular, when a packaging cushion made of polystyrene foam resin is glued to one end of a cardboard box or plastic case with an adhesive interposed, the resin on the adhesive-applied area is left behind and the other parts easily fall off due to external force. It had the disadvantage of causing The use of polyethylene-based foamed resin has been considered as a means to overcome this drawback, but with this foamed resin, deformation caused by external forces becomes plastic, and once the shape has changed, it does not return to its original shape. It lacks cushioning properties, making it unsuitable as a shock absorber for precision equipment such as electronic equipment, and a shock absorber with even higher shock absorbing properties is desired.

Means for Solving the Problems The present invention was constructed as follows. In other words, it is a hollow packaging cushion that cushions and protects the stored items within the packaging container, and has a bellows structure in part and holds the stored items by abutting one end of the bellows. It has a fixing means at the other end, a hole is formed in a plane perpendicular to the contraction direction of the bellows, and a lid body that can be sealed in the hole is provided.

Function: Since the present invention is configured as described above, it has a bellows structure in part, so it has a large shock-absorbing effect against the impact of stored items, and the packaging cushion itself is not damaged by contracting the bellows. .

A hole is formed in the plane perpendicular to the contraction direction of the bellows, and this hole has a sealable lid, so the cushioning effect can be enhanced by sealing it during use, and it can also be put into practical use after the packaging cushion is manufactured. Before serving, the container is opened, the air inside is evacuated, and then sealed, thereby minimizing the space required for transportation or storage.

It has the following characteristics.

Embodiment FIG. 1 is a cross-sectional view showing a state in which a portable word processor is housed in a packaging container, FIG. 2 is a perspective view of an embodiment of a packaging cushion according to the present invention, and FIG. The figure is a partially enlarged sectional view of FIG. 2.

The packaging cushion 6 of the present invention is placed inside the packaging container 1 to protect and cushion the stored items 5. 1st
As shown in the figure, one end of the packaging cushion 6 is brought into contact with an appropriate part of the stored item (word processor in this example) 5, and the other end is adhered to the packaging container to provide a protective cushion for the stored item 5. I'm going.

As shown in FIG. 2, the packaging cushion 6 has a bellows part 7, a bellows holding end 8 and a stored object abutting end 9 at both ends of the bellows part, and has a hollow shape as a whole. It is possible to contract and expand. The stored object contacting end 9 is
It comes into contact with the stored item 5 and fixes the stored item 5, and its shape is a curved surface so as not to damage the stored item, and is pressed and deformed slightly by the stored item. The bellows holding end 8 is provided with a lid storage recess 11 that is recessed inward in a plane perpendicular to the contraction direction of the bellows, and a part of the lid storage recess 11 is provided with a lid housing recess 11 for storing the packaging cushion 6. It has a hole 13 that communicates with the inside. Reference numeral 10 denotes a lid, and a part thereof has a protrusion 12 projecting outward, and the diameter of the portion of the protrusion 12 that is connected to the lid 10 is equal to the diameter of the hole 13 of the lid storage recess 11. In substantially the same way, the protrusion 12 closes the hole 13 when the lid 10 is stored in the lid storage recess 11. The tip of the protrusion 12 has a diameter larger than that of the continuous portion to prevent the lid from coming off. Here, an adhesive material 1 is applied to the surface of the bellows holding end that is perpendicular to the contraction direction of the bellows.
4 is attached.

The packaging cushion according to the present invention has a part that abuts and holds the stored item at one end, and a fixing means at the other end, and this fixing means is an adhesive material as shown in the above embodiment. without being limited to,
Fixing means for engagement or fitting, such as fixing means that has a recess on the fixing surface of the packaging container and a protrusion on the side surface that fits with the bellows holding end of the packaging cushion, or when the packaging container is a cardboard box. Fixing means such as drilling a hole at a suitable location in the inner lid and engaging the holding end portion therein can be used. Furthermore, fixing means such as bonding with adhesive or screwing can be applied.

The packaging cushion according to the present invention absorbs the bellows and shrinks the lid into the lid storage recess in that state.
The protrusion of the lid seals the hole, and even after the load used for contraction is removed, the hollow part is sealed, so the contracted state can be maintained. As a result, the space required for transporting or storing the packaging cushion after it is manufactured until it is put into practical use can be extremely reduced.

When using the packaging cushion of the present invention, the lid is removed and air is introduced into the hollow interior of the packaging cushion to release the shrinkage during transportation and storage. Bring it back. Then, the bellows portion is contracted in advance according to the gap between the stored item and the storage container, and the lid is returned to the storage recess to seal it. The degree of contraction of the bellows is such that the length is slightly larger than the gap between the stored item and the storage container. The thickness of the lid is preferably such that the depth of the storage recess is the same, and the outer surface of the bellows holding end is at the same height or the lid is slightly lower when the lid is stored. The bellows holding end is then covered with an adhesive and attached to the packaging container with the adhesive interposed at a suitable location on the packaging container.

Although the packaging container of the present invention is a portable container having a handle in the above embodiment, it includes not only such containers made of synthetic resin but also cardboard boxes, paper boxes, and the like.

Effects of the invention Since the present invention is constructed as described above, it has a very large shock-absorbing effect on the stored items and does not damage the stored items. By evacuating the air inside and then sealing it, the space required for transportation or storage can be extremely reduced.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a portable word processor stored in a packaging container, FIG. 2 is a perspective view of an embodiment of the packaging cushion according to the present invention, and FIG.
The figure is a partially enlarged sectional view of FIG. 2.

Claims (1)

[Scope of utility model registration request] A hollow packaging cushion that cushions and protects stored items within a packaging container, has a bellows structure in part, and has a part that abuts and holds the stored items at one end of the bellows, and the other side. 1. A cushioning material for packaging, comprising a fixing means at an end, a hole formed in a surface perpendicular to the direction of contraction of the bellows, and a lid body capable of sealing the hole.