JPH0643018Y2 - Cushioning material for packaging - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material for packaging made of paperboard such as corrugated cardboard, which is used when packaging a product in a packaging box.

[0002]

2. Description of the Related Art Conventional cushioning materials made of styrofoam or the like having appropriate elasticity are known, and they are fitted into the corners or edges of the product and the outer surface is packaged. By abutting against the inner surface of the box, the product is positioned in the packaging box, and a cushioning function against external impact is fulfilled.

However, as described above, the cushioning material for packaging made of Styrofoam or the like becomes a cause of pollution at the time of disposal after use, and therefore, its use is accompanied by the recent serious problem of environmental destruction. Is being shunned.

[0004]

[Problems to be solved by the device]
An object of the present invention is to provide a cushioning material for packaging which has an excellent cushioning function similar to that of a conventional cushioning material made of styrofoam or the like and has little adverse effect on the environment at the time of disposal after use.

[0005]

In order to solve the above-mentioned problems, the present invention provides a pair of end walls composed of an inner end wall, a top wall and an outer end wall at both end edges of a rectangular substrate. A pair of side walls that are erected upright and are formed on both side edges of the substrate by an inner side wall, a side top wall and an outer side wall, and the height dimension of the outer side wall is made larger than the height dimension of the inner side wall. Standing, the covering wall is continuously provided at both end portions of each side wall, the covering wall is continuously provided to the outer wall, and the outer cover plate overlapping the outer end wall, and the inner wall, An inner cover plate which is continuously provided via a connecting plate having a plurality of vertical folding curves and which overlaps the inner end wall;
A configuration is adopted in which a top plate that overlaps the top wall and that connects the outer cover plate and the inner cover plate is provided, and projecting plates that project toward the outer end wall and the outer wall are provided on the four sides of the substrate. Of.

[0006]

Since each end wall and each side wall of the cushioning material for packaging configured as described above has a double structure, it is provided between the outer wall surface in contact with the packaging box and the inner wall surface in contact with the product. A space is created, and external shocks are not directly transmitted to the product.

Since the height of the outer wall is formed to be larger than the height of the inner wall, the substrate is held at a position where it does not directly contact the inner surface of the packaging box, and the impact from the outside directly affects the product. Does not reach.

When an impact is applied to the outer wall or the outer cover plate, the tip of the projecting plate provided on the substrate abuts the outer wall or the inner surface of the outer cover plate, and each side wall and each end wall has a double structure. Is held.

[0009]

EXAMPLE The packaging cushioning material shown in FIG. 1 is made of paperboard such as corrugated board, and has a pair of end walls 2 at both end edges of a rectangular substrate 1 and a pair of side walls 3 at both side edges of the substrate 1. Was erected,
The surface of each end wall 2 is covered with a covering wall 4.

As shown in FIG. 2, each end wall 2 is composed of an inner end wall 5, a top wall 6 and an outer end wall 7, and each side wall 3 is, as shown in FIG. 1 and FIG. It is constituted by an inner wall 8, a side top wall 9 and an outer wall 10, and the outer wall 10
3 is formed to have a height dimension (reference numeral H _{1 in} FIG. 3) larger than that of the inner wall 8 (reference numeral H _{2 in} FIG. 3).

As shown in FIG. 2, the envelope wall 4 is composed of an inner cover plate 24, a top plate 25 and an outer cover plate 26. This packaging cushioning material is formed by assembling the blank shown in FIG.

As shown in FIG. 3, an inner end wall 5, a top wall 6 and an outer end wall 7 are successively connected to both end edges of the quadrangular substrate 1 through fold lines 12, 13 and 14, respectively. The inner end wall 5 is provided with U-shaped notches 15 starting from two points on the fold line 12, and projecting plates 16 separated by the notches 15 are provided at both end edges of the substrate 1. Fold line 1
It is connected without going through 2.

On both side edges of the substrate 1, each fold line 17,
Via 18, 19, the inner wall 8, the lateral top wall 9, the outer wall 1
0 are successively arranged, and the fold line 17 is formed on the inner wall 8.
A U-shaped notch 21 starting from the above two points is provided, and the protruding plate 22 that is cut by the notch 21
Are continuously provided on both side edges of the substrate 1 without a fold line 17.

An outer cover plate 26 is continuously provided at both ends of each of the outer side walls 10 through a fold line 29, and the inner side wall 8 is formed.
A connecting plate 30 having three vertical folding curves 23 at both ends of
The inner cover plate 24 is continuously provided via the. The outer cover plate 26
The inner cover plate 24 and the inner cover plate 24 are connected by a top plate 25. Reference numeral 11 in the drawing is a punching portion.

The fold lines 12, 13, 14 are bent to raise both end walls 2 at both ends of the substrate 1, and the fold lines 18, 19 and the vertical folding curve 23, the fold line 29.
After folding, the covering wall 4 is covered on both end walls 2 while folding the fold line 17, as shown in FIG.
The side walls 3 stand side by side on the substrate 1 one by one.

As shown in FIG. 1, the stoppers 27 provided on the envelope walls 4 connected to both ends of the one side wall 3 are connected to the stopper walls 4 attached to both ends of the other side wall 3. By temporarily fixing to the locking recess 28 provided in the package, the shape of the packaging cushioning material assembled as shown in FIG. 1 can be maintained until it is stored in the packaging box.

As shown in FIG. 4, this packaging cushioning material is
A product 31 is placed on the substrate 1 and stored in a packaging box 32 for use. By doing so, as shown in FIG. 4 (a), the outer surface of the outer wall 10 is the inner surface of the packaging box 32,
As shown in FIG. 4B, the outer surface of the outer cover plate 26 contacts the inner surface of the packaging box 32.

A space is created between the outer wall 10 and the inner wall 8 and between the outer end wall 7 covered with the outer cover plate 26 and the inner end wall 5 covered with the inner cover plate 24. The impact from the outside is not directly transmitted to the product 31 placed on the substrate 1.

Further, since the height of the outer side wall 10 is larger than the height of the inner side wall 8, the substrate 1 does not come into direct contact with the inner surface of the packaging box 32, that is, the packaging box 32 has the same shape. It is held above the bottom wall, and external shocks are not directly transmitted to the product 31.

When an impact is applied to the outer side wall 10, as shown in FIG.
As shown in (a), the tip of the protruding plate 22 contacts the inner surface of the outer wall 10 to hold the space between the outer wall 10 and the inner wall 8.

When a shock is applied to the outer cover plate 26, as shown in FIG.
As shown in (b), the tip of the projecting plate 16 abuts on the inner surface of the outer end wall 7 covered by the outer cover plate 26, and the space between the outer end wall 7 and the inner end wall 5 is held. To be done.

In this embodiment, as shown in FIGS. 2 and 3, the inner cover plate 24 constituting the envelope wall 4 is replaced by three.
The structure is such that it is connected to the inner wall 8 through a connecting plate 30 having a vertical folding curve 23 of a book. Therefore, the dimensional difference between the outer side wall 10 and the inner side wall 8 and between the outer cover plate 26 and the inner cover plate 24 is calculated as shown in FIG.
As shown in FIG. 5, the connecting plate 30 is folded in two and absorbed.

Instead of the above structure, the innermost vertical folding curve among the vertical folding curves 23 (reference numeral 23 in FIG. 3).
It may be configured such that the inner cover plate 24 is continuously provided to the inner side wall 8 via a connecting plate having two vertical bending curves without providing a). In this way, the dimensional difference between the outer side wall 10 and the inner side wall 8 and between the outer cover plate 26 and the inner cover plate 24 is absorbed by folding the connecting plate 30a in two, as shown in FIG.

[0024]

EFFECTS OF THE INVENTION In the packaging cushioning material configured as described above, since each end wall and each side wall has a double structure, an outer wall surface contacting the packaging box and an inner wall surface contacting the product are provided. Since a space is created between the outer wall and the height of the outer wall is larger than that of the inner wall, the substrate is held in a position where it does not directly contact the inner surface of the packaging box, and It is possible to prevent a direct impact.

Further, since the projecting plates are provided on the four sides of the substrate, the tip of the projecting plate is brought into contact with the outer wall or the inner surface of the outer cover plate against impact from the outside, so that each end wall and Each side wall can be held with a double structure, and an excellent cushioning function can be achieved.

Further, it is possible to manufacture a product using a paperboard such as a corrugated board, and it is possible to provide a product which has a small adverse effect on the environment when it is disposed of after use.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a perspective view during the assembling of the above.

[FIG. 3] Development view of the above

FIG. 4 is a vertical sectional side view in the same use condition as above.

[Figure 5] Bottom view of the above

FIG. 6 is a bottom view of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 End wall 3 Side wall 4 Encapsulation wall 5 Inner end wall 6 Top wall 7 Outer end wall 8 Inner side wall 9 Side top wall 10 Outer side wall 11 Stamped part 12, 13, 14, 17, 18, 19, 29 Folded Line of sight 15, 21 Cut 16, 22 Projection plate 23, 23a Vertical folding curve 24 Inner cover plate 25 Top plate 26 Outer plate 27 Stopper 28 Locking recess 30, 30a Connecting plate 31 Product 32 Packaging box

Claims (1)

[Scope of utility model registration request] 1. A pair of end walls composed of an inner end wall, a top wall and an outer end wall are erected on both end edges of a quadrangular substrate, and an inner side wall and a side apex are provided on both side edges of the substrate. A pair of side walls, which are composed of a wall and an outer wall, and whose height dimension of the outer wall is larger than that of the inner wall, are erected, and a covering wall is continuously provided at both ends of each side wall. A cover plate that is continuous with the outer wall and overlaps the outer end wall.
An inner cover plate that is continuously provided on the inner wall via a connecting plate having a plurality of vertical folding curves and that overlaps the inner end wall; and an outer cover plate and an inner cover plate that overlap the top wall. A cushioning material for packaging, comprising a top plate to be connected, and provided with projecting plates projecting toward the outer end wall and the outer wall on four sides of the substrate.