JPS6240927Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a packaging cushioning material used when an article is packaged and transported in a package such as a cardboard box.

[Conventional technology]

As shown in FIG. 4, the means for packaging the article 1 with buffer protection is to fit the article 1 into the stepped portions of the buffer members 3 placed at the four corners of the first packaging box 2, and A packaging cushioning material 4 is attached to the outer corner of the first packaging box 2 by adhesive or the like, and this is stored in a second packaging box 6 that surrounds the first packaging box 2 with a space 5 in between. , first and second packaging boxes 2, 6
Conventionally, a cushioning material 4 for packaging has been installed between the two. The packaged object 1 is a packaging cushioning material 4
The shock is protected by the buffering action of the buffer member 3.

Examples of packaging cushioning materials 4 commonly used in the past include trapezoidal ones shown in FIG. 5 and cubic ones shown in FIG. 6. These are all polystyrene foams, polyethylene foams made of polyethylene or polyethylene copolymers,
It is formed from a synthetic resin foam such as polypropylene foam or polyurethane foam. Among these, polyethylene foams are particularly preferred since they have excellent flexibility and toughness, and thus achieve the object of the present invention.

When an external force is applied to the packaging cushioning material 4 having the above-mentioned shape, the entire structure is compressed, but the absorption of the impact force becomes insufficient, making it difficult to effectively reduce the deceleration (G value). When the external force is greater than a certain level, a buffering effect is produced, but when the packaged object 1 is lightweight, that is, when the external force is small, the effect is small. Furthermore, since the conventional packaging has a fixed shape, it has the disadvantage that the same shape cannot be applied to a wide range of packaging items 1 ranging from light to heavy items.

[Problems to be solved by the invention] This invention solves the above-mentioned drawbacks, and its purpose is to provide excellent cushioning protection for a wide range of packaged items, from light to heavy items, and to effectively reduce the G value. The purpose of the present invention is to provide a cushioning material for packaging that can be used as a cushioning material.

[Means for solving problems]

In order to achieve the above object, the present invention provides a cushioning material made of foamed resin that is interposed between a first packaging box for storing an item to be packaged and a second packaging box that surrounds and separates the space. two prongs extending over the corners of the first packaging box; and protruding from the prongs of the two prongs, and extending around the corners of the second packaging box at the protruding ends. The means is a packaging cushioning material having a protruding part formed of a truncated right triangular part that abuts, and a punching hole formed through the protruding part and the bifurcated part.

〔Example〕

Hereinafter, an embodiment of the present invention will be explained based on the drawings, as shown in FIG. 1, the packaging cushioning material 4a is formed into a rocket shape. In other words, the fork 7 that extends at right angles to straddle the corner and the protrusion 8 that protrudes from the prongs of the fork 7 are integrally formed. is a truncated right triangle part 8
a is formed. Further, the punching hole portion is formed of a long groove 9 formed through the protrusion 8 to a suitable length and a cavity 10 formed intermittently along the forked portion 7 . A round hole 11 is formed at the base of the fork 7. Note that the dimensions (length, width, thickness) of the protruding portion 9 and the dimensions (length, width, thickness) of the forked portion 7 are selected as desired, taking into consideration the weight of the object to be packaged 1, the volume of the packaging box, etc. Ru. Note that the cavity 10 does not need to be discontinuous as described above, and the cavity 10 and the long groove 9 may communicate with each other.

FIGS. 2 and 3 show an example of a packaging structure in which a packaging cushioning material 4a having the shape described above is arranged in a packaging box.

Two prongs 7 of a packaging cushioning material 4a are placed over the corner portions of the first packaging box 2 that accommodates the packaged item 1, and are attached by adhesive or the like. The protrusion 8 diagonally crosses the space 5 and abuts against the four corners of the second packaging box 6. The packaging cushioning material 4a is brought into close contact with the four corners by the truncated right triangular part 8a, and is stably held by the truncated part.

A buffer member 13 is adhered to the wrapping paper 12 connected to the first packaging box 2, and as shown in FIG.
2, the buffer member 13 becomes the second
comes into contact with the packaging box 6.

As a result of the above, the first packaging box 2 has a packaging cushioning material 4.
It is stored and held in the second packaging box 6 via the buffer member 13 and the buffer member 13.

When an impact force is applied to the second packaging box 6, the packaging cushioning material 4a deforms the long groove 9 and the cavity while being displaced in the protruding direction and a direction perpendicular thereto, thereby absorbing the impact force. The cushioning member 13 also performs a buffering function, but if it is made of a soft material, the packaging cushioning material 4
a effectively acts as a buffer.

As described above, by appropriately selecting the shape of the packaging cushioning material 4a, the cushioning effect can be improved over a wide range of lightweight to heavy items, and the packaged item 1 can be safely protected.

The round hole 11 functions to prevent interference between the prongs and the first packaging box 2, to bring the packaging cushioning material 4a into close contact with the first packaging box 2, and to avoid stress concentration on the prongs during deformation. do.

Further, in the present invention, the cavity 10 may be continuous as shown in FIG.

Although the packaging cushioning material 4a is formed into a somewhat complicated shape, it can be easily manufactured, for example, by punching out a flat plate obtained by extrusion foam molding with a press or by foam molding foam beads in a mold. Also, the intersection angle of the contour lines forming the shape is 45
Since it is formed at 90 degrees and 90 degrees, it is possible to reduce the loss of offcuts during punching, making it possible to perform economical punching.

[Effect of idea]

As is clear from the above explanation, according to the present invention, a wide range of packaged items from light to heavy items can be cushioned and protected with a simple structure, reducing the G value and preventing damage to the packaged items. The effects that can be achieved can be improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a plan view showing an example of a packaging structure using the embodiment, and Fig. 3 is a sectional view of an embodiment of the present invention.
The figure is a front view of the packaging structure shown in Figure 2, Figure 4 is an explanatory diagram showing how the conventional packaging cushioning material is used, Figure 5,
FIG. 6 is a sectional view of the prior art, and FIG. 7 is a sectional view showing another embodiment. 1... Item to be packaged, 2... First packaging box, 4, 4
a...Cushioning material for packaging, 5...Space, 6...Second
packaging box, 7... two prongs, 8... protrusion, 8a...
...Truncated right triangle portion, 9...Long groove, 10...Cavity, 11...Round hole, 13...Buffer member.

Claims (1)

[Claims for Utility Model Registration] 1. An intermediary between a first packaging box that stores and holds the packaged object and a second packaging box that surrounds the first packaging box with a space in between. A packaging cushioning material made of a foamed resin that is provided and cushions and protects the packaged item, including two prongs that straddle the corners of the first packaging box, and protruding from the prongs of the two prongs. and a protruding portion having a truncated right triangular portion abutting around a corner in the second packaging box at its protruding end; and a punch hole portion formed through the protruding portion and the forked portion. A packaging cushioning material comprising: 2. The packaging cushioning material according to claim 1, which is a registered utility model, characterized in that a round hole is formed at the prong of the forked portion.