JP7498825B2 - Packaging cushioning - Google Patents

Description

The present invention relates to a packaging cushioning device that is attached to the protruding parts of polygonal objects to be packaged, such as building fixtures.

When packaging thick, flat panel materials such as frames and shoji screens, packaging cushioning devices are attached to the four protruding corners. Some packaging cushioning devices have two auxiliary cover parts and two main cover parts. The auxiliary cover parts cover the surface of the panel material. The main cover parts cover the two visible surfaces that make up the protruding corners of the panel material. The ends of the two main cover parts that are close to each other are provided with cushioning parts that bulge towards the outer periphery of the panel material. When this packaging cushioning device is used, the protruding corners of the panel material are covered by the cushioning parts, so that it is possible to prevent damage to the protruding corners, for example, if they come into contact with a foreign object during transport (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 10-203552

The above-mentioned packaging cushioning device has only one cushioning section configured over a wide area spanning the two main cover sections, and only air is present between the cushioning section and the protruding corner of the panel. For this reason, depending on the magnitude of the external force applied to the cushioning section, the cushioning section may be crushed and come into contact with the protruding corner, and the external force may be transmitted to the protruding corner. Note that the above problem is not limited to packaging cushioning devices that are installed on the protruding corners of the four corners of the panel, as long as they are protruding parts of the packaged object, but can also occur in packaging cushioning devices that are installed on protruding corners formed by three surfaces, such as a cube or rectangular prism.

In view of the above-mentioned circumstances, the present invention aims to provide a cushioning device for packaging that can more reliably prevent damage to protruding parts of the packaged object.

In order to achieve the above-mentioned object, the packaging cushioning device of the present invention is a packaging cushioning device provided at a protruding corner of an object to be packaged which is composed of three surfaces, and comprises three main cover parts arranged to cover the three surfaces of the object to be packaged, a cushioning body part provided at the apex corner side of the main cover parts and arranged to secure a cushioning space by being separated from the apex corner of the protruding corner and its surrounding surfaces , and a concave part provided at the bottom side of the main cover parts relative to the cushioning body parts and abutting the three surfaces of the object to be packaged, and is characterized in that the cushioning body part is configured with a plurality of protruding parts.

According to the present invention, since the cushioning body is provided with multiple protrusions, the entire cushioning body will not be crushed even when an external force is applied, eliminating the risk of the external force being transmitted to the packaged object, and making it possible to more reliably prevent damage to the protruding corners and protruding edges of the packaged object.

1 is a perspective view showing a packed state of a packaged object to which a cushioning device for packaging according to an embodiment of the present invention is applied; FIG. 2 is a plan view showing the appearance of the cushioning device for packaging shown in FIG. 1 . FIG. 2 is a perspective view showing the appearance of the cushioning device for packaging shown in FIG. 1 . FIG. 2 is a perspective view showing an inside of the cushioning device for packaging shown in FIG. 1 . 2 is a perspective view showing a part of the cushioning device for packaging shown in FIG. 1 in a cutaway view. FIG.

Below, we will explain in detail the preferred embodiment of the packaging cushioning device according to the present invention with reference to the attached drawings.

Figure 1 shows the state of packaging of an object to be packaged using a packaging cushioning device according to an embodiment of the present invention. The object to be packaged shown here is, for example, a cubic box E that contains building components, and has eight protruding corners 3'. That is, in this embodiment, the protruding corners 3' are formed by the intersection of three surfaces P that extend at right angles to each other on the box E.

The packaging cushioning device 20 for packaging the box body E described above is vacuum molded from resin such as polypropylene, and is configured so that each part described below has a substantially uniform plate thickness. As shown in Figures 2 to 5, the packaging cushioning device 20 is configured to have three main cover parts 21. The main cover parts 21 are arranged to cover the three surfaces P that constitute the protruding corner parts 3' of the box body E, and are substantially triangular pyramid-shaped with an open bottom. Each main cover part 21 is substantially in the shape of a right-angled isosceles triangle, and the equilateral parts are interconnected to form a triangular pyramid-shaped storage part 22 between them.

Each main cover section 21 has a support section 23 on the wide base side and a buffer section 24 on the apex side, with a recessed section 25 between the support section 23 and the buffer section 24. The support section 23 is a platform-like section that protrudes from the recessed section 25 so as to bulge outward from the box body E. More specifically, the support section 23 has a leg wall section 23a that extends from the recessed section 25 so as to bend outward from the box body E, and an abutment wall section 23b that extends from the extended edge of the leg wall section 23a so as to be substantially parallel to the recessed section 25.

The buffer section 24 extends from the recessed section 25 so as to bulge outward from the box E, and then extends toward the apex. More specifically, the buffer section 24 has a protruding wall section 24a that extends from the recessed section 25 so as to bend outward from the box E, and a base wall section 24b that extends from the extending edge of the protruding wall section 24a toward the apex, forming a buffer space 26 between them. This buffer space 26 is connected to the storage section 22 and bulges outward from the storage section 22.

The concave portion 25 is configured to be flat by ensuring a gap between the buffer portion 24 and the support portion 23. The outer surface 25a of the concave portion 25 is located on the inner periphery so as to be recessed relatively to the outer surface 24c of the buffer portion 24 and the outer surface 23c of the abutment wall portion 23b, which protrude outward. Similarly, the inner surface 25b of the concave portion 25 facing the box body E is also located on the inner periphery so as to be recessed relatively to the inner surface 24d of the buffer portion 24 and the inner surface 23d of the support portion 23.

Furthermore, the packaging buffer 20 has a plurality of protrusions 27 on the base wall 24b of the buffer 24. In this embodiment, the base wall 24b is provided with a plurality of grooves 28 arranged vertically and horizontally, so that the number of protrusions 27 gradually increases from the apex to the base. The protrusions 27 protrude from the recess 25 to the same height. Each of the protrusions 27 protrudes independently toward the outer periphery. Therefore, even if adjacent protrusions 27 are deformed by being crushed or otherwise deformed, the buffer 24 is less susceptible to such deformation. In addition, in the buffer 24 having a plurality of protrusions 27 on the base wall 24b, the peripheral wall 27a and the bottom wall 28a of the grooves 28 constituting each protrusion 27 are arranged to protrude into the buffer space 26.

As shown in FIG. 1, the packaging cushioning devices 20 configured as described above are arranged on the eight protruding corners 3' of the box body E with each protruding corner 3' positioned inside the storage section 22. Packing tape made of a resin film may be wrapped around the spaces between each of the packaging cushioning devices 20.

The packaging buffer 20 arranged on the box E in the above manner has the buffer portion 24 disposed in correspondence with the portion that will become the protruding corner 3'. The inner surface of the buffer portion 24 is separated from the surface P of the box E by the inner surface 25b of the recessed portion 25 abutting against the surface P of the box E. Moreover, the buffer portion 24 is provided with a plurality of protruding portions 27 that protrude toward the outer periphery. As described above, these protruding portions 27 are not easily affected even when the shape of the adjacent protruding portions 27 changes, and are disposed so that the peripheral wall portions 27a and the bottom wall portions 28a of the grooves 28 protrude into the buffer space 26. Therefore, when an external force is applied toward the protruding corner 3', such as when a foreign object abuts against the protruding corner 3' during transportation, the peripheral wall portions 27a of the protruding portions 27 and the bottom wall portions 28a of the grooves 28 abut against the box E in sequence, and the protruding portions 27 are gradually crushed to absorb the external force. This prevents the entire cushioning portion 24 from collapsing, eliminates the risk of external forces being transmitted to the protruding corners 3' of the box body E, and more reliably prevents damage to the protruding corners 3'.

In the above embodiment, the object to be packaged is a cubic box E, but the packaging cushioning device 20 can be used to package other objects, such as rectangular parallelepiped objects, as long as the protruding corners 3' are provided by three surfaces P. In this case, the three surfaces P do not necessarily need to extend perpendicular to each other. Also, although one cushioning portion 24 is provided across the three main cover portions 21, an independent cushioning portion 24 may be provided for each main cover portion 21. In this case, it is sufficient that the apex of the protruding corners 3' does not come into contact with foreign objects, and it is not necessary for the cushioning portion 24 to cover the apex of the protruding corners 3'.

The packaging cushioning device of the present invention is a packaging cushioning device that is provided at a protruding corner of an object to be packaged that is composed of three surfaces, and is characterized in that it comprises three main cover parts that are arranged to cover the three surfaces of the object to be packaged, and a cushioning body part that is provided at the apex corner side of the main cover parts and is arranged at a distance from the surface of the object to be packaged, and the cushioning body part is configured with a plurality of protruding parts.
According to this invention, since a plurality of protrusions are provided in the cushioning portion, the entire cushioning portion will not be crushed even when an external force is applied, there is no risk of the external force being transmitted to the object to be packaged, and it is possible to more reliably prevent damage to the protruding corners.

The present invention is also characterized in that, in the above-mentioned packaging cushioning device, a support body portion is provided at the end of the main cover portion away from the cushioning body portion so as to bulge outward while maintaining a gap between the cushioning body portion and the support body portion.
According to this invention, since the support part is provided at a portion separated from the cushioning part, it is possible to set the packaged object in a stable state. Also, by wrapping packaging tape around the recessed part, the tape will not be damaged, such as worn out, during transportation, and there is no risk of the packaging cushioning accidentally falling off the packaged object.

3' protruding corner, 20 packaging cushioning device, 21 main cover, 23 support, 24 cushioning body, 25 concave portion, 27 protruding portion, E box, P surface

Claims (2)

A packaging cushioning device that is provided on a protruding corner of a packaging object that is composed of three surfaces,
Three main cover parts arranged to cover three surfaces of the packaged object;
a buffer portion provided at a portion of the main cover portion that is a vertex side and spaced apart from the vertex portion of the protruding corner portion and its surrounding surface to ensure a buffer space ;
a recessed portion provided on a portion of the main cover portion closer to the bottom side than the buffer portion, the recessed portion being in contact with three surfaces of the object to be packaged;
wherein the buffer portion is configured to have a plurality of protrusions. 2. The cushioning device for packaging according to claim 1, characterized in that a support portion is provided at an end portion of the main cover portion that is closer to the bottom side than the recessed portion, so as to bulge outwardly.

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