JPH0350057Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a cushioning material for packaging, and aims to provide a cushioning material that can isolate and protect individual bottles with good cushioning properties, especially when multiple bottles are stored together in an external case. .

Conventionally, in order to package multiple glass bottles such as half a dozen bottles of soft drinks, etc., a paper carton box was equipped with a partition board made of paper to separate each bottle, or a rigid It was made of synthetic resin, etc., and was housed in a molded case with an integral partition.

However, the above-mentioned conventional packaging has a problem in that it has poor cushioning properties for the bottle, and the bottle rattles due to vibrations during transportation, causing noise.

Therefore, in order to solve the above problem, it has been proposed to use cushioning partition materials made of foamed polystyrene sheets, etc.
No. 29988.

The above-mentioned prior art involves forming an uneven shape along the outer shape of a bottle on the outer surface of a plate-shaped cushioning material folded in half, and inserting the cushioning material into the middle of two rows of bottles arranged on the left and right. It protects the bottle.

However, with the above-mentioned cushioning material, only the central semicircular part of the side surface of the body of the bottle comes into contact with the cushioning material, and the bottom of the bottle and the outer semicircular part of the body remain completely exposed and directly contact the cushioning material. It is in contact with the outer case. Therefore, even if cushioning materials can protect bottles from damage caused by collisions with other bottles, their protection against external forces and shocks applied during transportation is insufficient. There were problems with glass bottles, and further improvements were desired.

Therefore, in this invention, the above-mentioned sheet-made partition cushioning material is improved to provide a cushioning material that further improves the cushioning and protection performance for stored items such as bottles. The left and right inner plates are arranged in a bendable manner with a narrow top plate in between so that they can face each other, and a bottom plate and an outer plate are sequentially connected to the outer ends of both inner plates. The inner plate, bottom plate, and outer plate are bent freely so that they form a U-shape on the outside of the inner plate, and the outer surface of the inner plate can be abutted along the outer shape of stored items such as bottles. Multiple rows of convex portions are formed symmetrically on the left and right inner plates, and supporting convex portions that come into contact with each other during assembly are formed on the back surfaces of both inner plates at positions that match each other on the left and right inner plates. It is characterized by what it does.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

Figures 1 to 4 show the cushioning material 1 in an expanded state, and the cushioning material 1 has a generally rectangular flat plate shape as a whole;
Molded from expanded polystyrene sheet, etc.
There are two rectangular inner plates 10 and 2 on the left and right sides.
0 are integrally connected through a narrow strip-shaped top plate 30 in the center, and the top plate 30 and both inner side plates 1
V-shaped bending grooves 40 are formed on the back side of the locations where the left and right inner plates 1 and 20 are connected.
0 and 20 at right angles to the top plate 30 and the inner plates 10 and 20.
They are bendable so that they face parallel to each other.

Further, bottom plates 50, 60 and outer plates 70, 80 are sequentially provided at the outer ends of the left and right inner plates 10, 20, respectively. The locations where the inner plates 10, 20 and the bottom plates 50, 60 are connected, and the bottom plate 50,
V-shaped bending grooves 90 are formed on the upper surface side of the cushioning material 1 at the locations where the cushioning material 60 and the outer plates 70 and 80 are connected to each other. A pair of inner plates 10, a bottom plate 50, and an outer plate 70 on one side can be bent to form a U-shape, and a pair of inner plates 2 on the other side.
The same applies to the bottom plate 60 and the outer plate 80.

Therefore, the entire cushioning material 1 is configured such that two sets of U-shaped storage parts can be formed on the left and right sides with the top plate 30 at the center.

In addition, as the bending groove 40 and the bending groove 90,
As long as the plates on both sides can be bent at approximately right angles, the grooves may be V-shaped, linear or U-shaped, or a thin section may be formed with a thickness smaller than other sections.
Furthermore, the number of bending grooves 40 or 90 formed at one continuous location may be one, or may be two or more, such as three.

Next, on the upper surfaces of the inner plates 10 and 20, there are convex portions 11 and 21 having arcuate curved side walls that approximately follow only the semicircular portion of the outer shape of the body portion of the bottle B etc. to be stored.
is formed in a bulge along the width direction of the inner plates 10, 20. In addition, the convex portions 11 and 21 are formed on the inner plate 1.
0 and 20 are tapered upward from the ends in the width direction.

The convex portions 11 and 21 are formed on the inner plate 1.
0,20 along the longitudinal direction (4 in the figure)
The bottles B are arranged in a row at regular intervals, and the bottle B is inserted between the two adjacent convex portions 11 and 21 for use. Therefore, regarding the convex portions 11 and 21 at both ends of the inner plates 10 and 20, only the inner walls need to be formed into an arc shape.

Further, among the inner plates 10 and 20, the convex portion 11,
Supporting convex portions 12 and 22 are formed in the middle of 21 in the shape of a rectangular trapezoid and protrude toward the back side. When the left and right inner plates 10, 20 are bent and assembled to face each other, the supporting protrusions 12, 22 are formed by the protrusions 1 on both sides.
2 and 22 are formed at positions that coincide with each other so that they exactly abut, and at heights that allow them to just abut.

Next, relatively low convex portions 51, 61 are formed on the upper surfaces of the bottom plates 50, 60, and have side walls having an arcuate planar shape and substantially following the shape of the bottom side surface of the bottle B or the like. However, regarding the convex portions 51 and 61 at both ends of the bottom plates 50 and 60, only one side wall may be formed in an arc shape. Further, at the center of the convex portions 51, 61 of the bottom plates 50, 60, disc-shaped flat convex portions 52, 62 are formed along the concave portions of the bottom of the bottle B or the like.

Next, the inner plates 10 and 20 are attached to the outer plates 70 and 80.
Symmetrically, convex portions 71, 81 are formed on the top surface, and supporting convex portions 72, 82 are formed on the back surface.

As the material for forming the above-mentioned cushioning material 1, foamed sheets made of various thermoplastic resins such as polystyrene are suitable in terms of cushioning properties and lightness.
A multilayer sheet in which a non-foamed film of thermoplastic resin is laminated on the above-mentioned foamed sheet can also be used. It is also possible to use molded products made of various sheet materials such as non-foamed thermoplastic resin sheets and pulp molded products.

Next, as a method of using the above-mentioned cushioning material 1, the fifth method is as follows.
6 and 6, the cushioning material 1 in the unfolded state is first placed between the inner plates 10 and 20 on the left and right sides of the top plate 30.
are bent so that they face parallel to each other, and further the bottom plate 5
0, 60 and the outer plates 70, 80 are sequentially bent into a U-shape. and convex portions 1 of the inner plates 10, 20
1, 21, convex portions 51, 6 of bottom plates 50, 60
1, 52, 62 and the convex portions 71, 81 of the outer plates 70, 80, each contains one bottle B.
They are inserted one by one. Therefore, the bottle B is stored and protected with its entire side wall and bottom surface in contact with the cushioning material 1.

The cushioning material 1 containing the bottle B is then stored in an exterior case C made of a carton box, a cardboard box, a hard synthetic resin molded container, etc.
Provided for transportation and storage. In addition, at this time, the outer plate 7
The supporting protrusions 72 and 82 of 0 and 80 are the outer case C.
A gap is created between the bottle B and the outer case C, making it difficult for the influence of external forces to be directly transmitted to the bottle B and improving the cushioning properties.

In the cushioning material 1 described above, the left and right inner plates 10, 20 are connected to each other by the structure consisting of the top plate 30 and the bending groove 40, so that the left and right inner plates 10, 20 are connected to the top plate. The supporting protrusions 1 formed on the inner plates 10 and 20 can be separated by a width of 30 mm.
By maintaining the shape of the entire cushioning material 1 through contact between 2 and 22, the bottles B stored on the left and right sides can be reliably separated, so the bottles B do not collide with each other or cause any negative effects, and have good cushioning properties. It is convenient because it can be stored in

Note that the convex portions 12, 22 may be formed in a circular or other shape, and one convex portion 12, 22 may be divided into a plurality of pieces.

Supporting convex portions 12, 22 of the inner plates 10, 20
The supporting convex portions 7 of the outer plates 70 and 80 are symmetrical to
2 and 82 are also effective in improving the cushioning protection as described above, but they can also be deleted or the shape can be changed.

Next, the convex portions 51, 61 of the bottom plates 50, 60,
52, 62 or the convex portion 7 of the outer plate 70, 80
Even if some or all of 1.81 are omitted,
If the convex portions 11 and 21 of the inner plates 10 and 20 exist, the bottle B can be fixed in position and can be used sufficiently (7th
(see figure).

Furthermore, if the outer plates 70 and 80 are formed to the same height as the inner plates 10 and 20, the buffer protection performance will be the best.
Even if the height is halfway up, the position of bottle B can be fixed and buffered. In this case, the outer plate 70,
The convex portions 71 and 81 formed at 80 have a half shape with the upper half cut off (see FIG. 8).

The cushioning material 1 of this invention is most effective when used for packaging relatively small glass bottles B containing soft drinks, beer, various medicines, etc.
It can also be used to store and protect larger glass bottles B, bottles made of synthetic resin or ceramics, various cylindrical products made of the above-mentioned fragile materials, metal products that do not want to be damaged, etc.

According to the cushioning material 1 of this invention described above, the inner plates 10 and 2 are formed by bending the stored items such as the bottle B into a U-shape.
0, bottom plate 50, 60 and outer plate 70, 80
Since it protects the bottle by contacting it from three sides, it has much better buffering and protection performance than the conventional case where only the inner plates 10 and 20 contact the bottle B from one side to protect it. will improve. That is, external forces such as shocks and vibrations applied to the outer case C do not directly act on the bottle B, but are absorbed by the bottom plates 50 and 60 and the outer plates 70 and 80 of the cushioning material 1, so the protection performance against external forces is extremely high. Become excellent at. Therefore,
It is particularly suitable for storing articles that are easily affected by external forces, such as small bottles B with thin walls and fragile articles.

In addition, the problem of bottle B moving or rattling can be solved because its three sides are in contact with cushioning material 1 to restrict its movement.
Bottle B can be reliably fixed in position, and is highly effective in preventing vibration and noise.

Moreover, the left and right inner plates 10, 20 are replaced by the upper plate 3.
0 and a bending groove 40, the left and right inner plates 10, 20 are separated by the width of the top plate 30, and the supporting protrusions 12, formed on the inner plates 10, 20, By contacting each other, bottle B stored on the left and right can be reliably isolated.
They can be stored with good cushioning properties without colliding with each other or causing any negative effects.

Furthermore, the cushioning material 1 includes inner plates 10, 20, bottom plates 50, 60, outer plates 70, 80, etc., all of which are integrally connected, and a bending groove 40 and a bending groove 9 serving as a hinge part.
Since it is used by folding and assembling with the action of 0, it can be easily molded and manufactured in the unfolded state, and when transporting and storing only the cushioning material 1, many unfolded cushioning materials 1 can be stacked on top of each other for compact storage and transportation. can. In addition, it is easy to use by simply folding and assembling, and it is easy to handle.
It has various excellent practical values.

[Brief explanation of the drawing]

The figures illustrate the embodiment of this invention, and Fig. 1 is a plan view of the developed state, Fig. 2 is a partially cutaway front view, Fig. 3 is a partially cutaway right side view, and Fig. 4 is a partially cutaway right side view. Figure 1 is a line sectional view, Figure 5 is a partially cutaway plan view of the device in use, Figure 6 is a partially cutaway side view, and Figures 7 and 8 are partially cutaway side views of different modifications. be. 1... Cushioning material, 10, 20... Inner plate, 11,
21... Convex portion, 12, 22... Supporting convex portion, 3
0...Top plate, 40...Bending groove, 50, 60...
Bottom plate, 51, 61, 52, 62...Convex portion, 7
0,80... Outer plate, 71,81... Convex portion, 7
2, 82...Supporting convex portion, 90...Bending groove, B...
...Bottle, C...Outer case.

Claims (1)

[Claims for Utility Model Registration] 1. The entire body is approximately flat, and the left and right inner plates are arranged in a bendable manner with a narrow top plate interposed between them so that they can face each other. A bottom plate and an outer plate are sequentially connected to each outer end, and the inner plate, the bottom plate, and the outer plate are bent freely so that they form a U-shape on the outside of the inner plate. A plurality of rows of convex portions that can abut against the outer shape of stored items such as bottles are formed symmetrically on the left and right inner plates, and furthermore, on the back surfaces of both inner plates, there are supporting convex portions that abut against each other during assembly. A cushioning material for packaging, characterized in that the left and right inner plates are formed at positions that coincide with each other. 2. The cushioning material for packaging according to claim 1 of the above-mentioned utility model registration claim, wherein a bending groove is formed on the back surface of the area where the top plate and the inner plate are connected. 3. The cushioning material for packaging according to claim 1 of the above-mentioned utility model registration, wherein the bottom plate has a convex portion that can come into contact with the bottom side of the stored item. 4. The cushioning material for packaging according to claim 1 of the above-mentioned utility model registration, wherein the outer plate has a plurality of rows of convex portions that can be abutted along the outer shape of the stored item. 5. The cushioning material for packaging according to claim 1 of the above-mentioned utility model registration claim, wherein the outer plate has a supporting convex portion formed on the back surface. 6. The cushioning material for packaging according to claim 1, wherein the height of the outer plate is lower than that of the inner plate. 7. The packaging cushioning material according to claim 1, which is entirely formed of a foamed sheet.