JPS5924692Y2 - corner pad - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a corner pad that covers a part of the corner of an item to be packaged such as an electrical product or a household item.

Conventionally, as this type of pad, a block-shaped corner pad made of, for example, polystyrene foam, obtained by bead molding, or a corner pad made of corrugated paper, etc., has been used.

However, the block-shaped corner pad 11 made of polystyrene foam as shown in FIG. 1 is thick, so if it covers part of the corner of the packaged item, it will take up extra space. However, there was a problem in that the items to be packaged could not be tightly stored in the packaging box.

Further, in manufacturing the corner pad 11, various corner pad molding molds are required to correspond to the size and shape of the corner part of the product to be packed, and the manufacturing is complicated.

- Corner pads made of front corrugated paper have insufficient cushioning properties, and the material is hard, so depending on the material of the packaged items, there is a risk of damage to the packaged items due to vibrations during transportation. there were.

This invention was made to eliminate the above-mentioned drawbacks.
The purpose of the present invention is to provide a corner pad that has sufficient strength and cushioning properties, does not damage the packaged items due to vibration during transportation, and is easy to manufacture. .

That is, the present invention has a structure in which two substantially trapezoidal pad base materials made of a composite sheet formed by laminating a non-foamed resin sheet on a polyolefin resin foam sheet are stacked, and the top edge and The gist of the present invention is to provide a corner pad characterized in that oblique side portions are connected and integrated and are configured to be foldable and expandable.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a corner pad 1 according to the present invention, in which two substantially trapezoidal pad base materials 6 having a top side 2, an oblique side 3, a side side 4, and a bottom side 5 are stacked together. The top side 2 and the oblique side 3 of each pad base material 6
The parts are connected and integrated, for example, by heat fusion.

Note that the side edges 4 and the bottom edge 5 are not connected and integrated.

In the corner pad 1 configured in this way,
The length of the top side 2, the length from the top side 2 to the bottom side 5, and the length from the bent part 7 to the side side 4 can be arbitrarily determined depending on the thickness, size, and shape of the product to be packed 8. Set.

As shown in FIG. 9, the corner pad 1 constructed as described above uses a composite sheet formed by laminating a non-foamed resin sheet 10 onto a polyolefin resin foamed sheet 9 obtained by extrusion molding, for example.

Examples of the resin material for the resin foam sheet 9 herein include polyethylene, polypropylene, and the like.

Examples of the non-foamed resin sheet 10 mentioned herein include polyethylene, ethylene-vinyl acetate copolymer, polypropylene, and ethylene-propylene copolymer.

By constructing the pad base material 6 using such a composite sheet, it is possible to obtain a pad base material having greater strength than a pad base material consisting only of a resin foam sheet.

When using the corner pad 1 of the present invention, the folded corner pad 1 shown in FIG.
The ear portion A located outward from the bent portion 7 is folded inward and expanded as shown in FIG. 6.

As shown in FIG. 7, the expanded corner pad 1 obtained in this way is fitted into and abutted on a part of the corner of the article to be packed 8, so that the part of the corner is removed from the corner pad 1.
covered by.

After that, the packaged items 8 are appropriately stored in the packaging box.

When the corner pad 1 of the present invention is not used, it can be folded flat again and stored compactly as shown in FIG.

As another embodiment of the present invention, as shown in FIG.
A trapezoidal pad base material 6 with a portion extending to the bottom side 5 is
It is also possible to have a structure in which the pad base materials 6 are stacked one on top of the other, and the top side 2 and oblique side 3 portions of each pad base material 6 are connected and integrated.

Note that the present invention is not limited to what has been described in the above embodiments.

For example, if a part of the corner of the item 8 to be packed is formed at an angle of 90°, the angle α (FIG. 2) between the bent portion 7 of the corner pad 1 of the present invention and the oblique side 3 is formed at 45°. However, for example, if the angle of a part of the corner of the product to be packed 8 is 90°
If the angle α is formed at a different angle, the angle α may also be different depending on the angle.

Furthermore, letters, patterns, etc. may be applied to the surface of the corner pad 1 having the above-mentioned structure, which is advantageous because it has a great design effect.

As explained above, the corner pad of this invention uses a pad base material made of a composite sheet made by laminating a non-foamed resin sheet on a foamed Boolefin resin sheet, so it maintains sufficient strength even if it is thin. Moreover, it has great cushioning properties and flexibility.

As a result, when the corner pad of the present invention is inserted into a part of the corner of the packaged item and is stored in the packaging box, it does not take up any extra space and can be stored tightly in the packaging box.
Furthermore, since vibrations during transportation are absorbed by the corner pads of the present invention, there is no risk of damage to the packaged items.

In addition, in manufacturing the corner pad of the present invention, there is no need for a corner pad molding mold, and by simply processing a single sheet, various corner pads can be produced that correspond to the size and shape of a part of the corner of the packaged product. can be easily manufactured.

In addition, the corner pad of the present invention has the advantage that it can be folded flat and stored compactly when not in use, and can be easily unfolded and used as a corner pad when in use.

However, since it is a strong composite sheet, it can withstand being folded and unfolded many times and can be used repeatedly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view of a block-shaped corner pad made of a conventional bead molded product, and Fig. 2 is a perspective view of a corner pad in a folded state, which is an embodiment of the present invention. 3 is a vertical sectional view taken along the line III--III in FIG. 2, FIG. 4 is a vertical sectional view taken along the line IV--IV in FIG. 2, and FIG. Figure 6 is a perspective view showing the expanded corner pad in Figure 2, and Figure 7 shows the expanded corner pad inserted into a part of the corner of the packaged item. 8 is a plan view showing another embodiment of the present invention, and FIG. 9 is a longitudinal cross-sectional view of a composite sheet in an embodiment of the present invention. 1...Corner pad, 2...Top side,
3... hypotenuse, 6... pad base material, 9...
...Polyolefin resin foam sheet, 10...
...Non-foamed resin sheet.

Claims (1)

[Scope of utility model registration request] It has a structure in which two approximately trapezoidal pad base materials made of a composite sheet made by laminating a non-foamed resin sheet on a polyolefin resin foam sheet I are stacked, and the top and hypotenuse portions of each pad base material are A corner pad characterized by being constructed so that it can be folded and expanded in a continuous and integrated manner.