JP2660193B2 - Packaging material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging material, and more particularly to a flexible packaging material capable of softly wrapping an article to be packaged with one touch.

[0002]

2. Description of the Related Art In order to protect an object to be packaged from impact or damage to its surface, various types of packaging materials for individually and individually packaging the object to be softened have been used. For example, in the case of packaging melon, a mesh-like packaging material made of a soft synthetic resin foam is used. This mesh-shaped wrapping material is continuously manufactured by a special extrusion molding, then cut into an appropriate length, and a melon is pushed into the inside and used.

However, in such a mesh-shaped packaging material, it is necessary for a user who uses it to perform a complicated operation of opening an opening of the packaging material and pushing an article into a predetermined position to be accommodated. Further, when storing and transporting the mesh-like packaging material, although it is folded, it is considerably bulky and has disadvantages in storage and transportation.

[0004] In addition, a so-called ball rotation in which a packaged object moves in a packaging material due to vibration during transportation or the like may occur,
When fragile fruits such as peach are packaged, there is a problem that the packaged material is damaged by friction with the packaging material. Therefore, such a packaging material is required to have not only a high shock buffering property but also a hold property for stably holding an article to be packaged.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve such problems, and does not require complicated operations, can easily pack articles, and An object of the present invention is to provide a sheet-like packaging material having high impact buffering properties and holding properties for an article to be packaged. Still another object of the present invention is to provide a packaging material which can be stacked as a sheet during storage and transportation and saves space.

[0006]

That is, the present invention provides:
Consists of a soft base sheet mainly composed of synthetic resin foam,
The central portion of the base sheet is formed as a circular convex portion having a concave surface in which the central portion is lowered, and the circular convex portion has an article when lifted upward by inversion of the outer edge of the circular convex portion. The present invention relates to a packaging material, wherein a wrapping piece surrounding the periphery is integrally extended.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a plan view showing an example of the packaging material of the present invention,
FIG. 2 is a cross-sectional view, FIG. 3 is an end view showing a packaging material in a state where the article is not packaged, FIG. 4 is an end view showing an inverted state of the packaging material when packaging the article, and FIG. FIG. 6 is a plan view showing another example, FIG. 6 is a cross-sectional view thereof, FIG. 7 is an end view showing a state where the packaging material shown in FIG. 5 does not wrap an article, and FIG. 9 is a sectional view showing another example of the present invention, and FIG. 10 is a sectional view showing another example of the present invention.

As shown in FIGS. 1 and 2, the packaging material 10 of the present invention is formed of a soft base sheet 11 and has a circular convex portion 12 and an wrapping piece 20 radially continuous from the circular convex portion 12 to the outside. It is composed of

As the soft base material sheet 11 used for the packaging material 10, a flexible sheet material which wraps the article to be packaged such as fruit softly without damaging it is preferable, for example, polyethylene, polypropylene, polystyrene, polyurethane. A sheet material mainly composed of a synthetic resin foam made of, for example, is preferable. Note that a composite laminated sheet can also be used.

[0010] The circular convex portion 12 is formed at a substantially central portion of the packaging material 10 and, when an article is not wrapped, rises and protrudes to the side where the article to be packaged comes into contact. At the center of the circular protrusion 12, a concave surface 15 lower than the outer edge 13 of the circular protrusion 12 is formed. When the article is placed on the circular convex portion 12, the concave surface 15 holds the article so as to wrap the lower side of the article.

On the outer edge 13 of the circular convex portion 12, a plurality of wrapping pieces 20 bent outward and downward are provided continuously in a radial manner. When the object to be packaged is placed on the circular convex portion 12 of the packaging material 10, the wrapping piece 20 is inverted and lifts upward to wrap around the object to be packaged. That is, when the weight of the packaged object is applied to the circular convex portion 12, the concave surface 15 of the circular convex portion 12 sinks. When the outer edge 13 is pushed and spread by the bottom of the article, the wrapping piece 20 is automatically inverted by the reaction and wraps the article.

In this embodiment, the tip 21 of the wrapping piece 20 is formed in a concave shape 22 that curves upward. Thereby, it is possible to reliably wrap the entire product along the shape of the article to be packaged. The number of the wrapping pieces 20 formed on one wrapping material 10 is not particularly limited, and is appropriately set depending on the size and shape of the article to be wrapped, and is 12 in this example. In order to enhance the cushioning property of the packaging material 10 and reduce the impact from the floor or the like, appropriate ribs or the like may be formed on the circular convex portion 12 and the wrapping piece 20.

Referring to FIGS. 3 and 4, a state in which an article is packaged using the packaging material of the present invention will be described. Packaging material 10
An article to be packaged M such as an apple is placed on the circular convex portion 12. Then, as shown by a chain line in the figure, when the concave surface 15 sinks downward due to the weight of the article M, the bent outer edge 13 of the circular convex portion 12 is pushed outward, and
The wrapping piece 20 is automatically inverted and protrudes to the opposite side of the packaging material.
Thereby, the plurality of wrapping pieces 20 formed around the circular convex portion 12 are lifted as shown in FIG.
Articles can be wrapped with one-touch packaging.

At this time, since the concave surface 15 is formed in the center of the circular convex portion 12, the bottom of the spherical article is wrapped and held securely.

Further, since the tip 21 of the wrapping piece 20 is formed in a concave shape 22, it can be wrapped softly along the shape of the article M.

5 to 10 show another embodiment of the present invention. First, the packaging material 30 shown in FIGS. 5 to 8 is formed by forming a projection 36 projecting above a concave surface 35 at the center of a circular projection 32. As shown in FIG. 7, the projection 36 is configured to fit into a depression at the bottom when wrapping a peach, an apple, or the like.
Further, as can be understood from FIG.
Since the shape of the wrapping piece 37 is maintained even after the reversal of the wrapping piece 37, the rotation of the ball due to vibration during transportation or the like is prevented, and the wrapping piece 37 is securely held.

FIGS. 9 and 10 show still another example of the present invention. The packaging material 40 shown in FIG.
A wrapping piece 47 is formed integrally and continuously from the entire outer edge 48 of the circular convex portion 42. According to the packaging material 40, the entire outer periphery of the article to be packaged can be wrapped.

The packaging material 50 shown in FIG. 10 is an example in which a projection is formed at the center of the circular convex portion of the packaging material shown in FIG. Reference numeral 51 denotes a base sheet, 52 denotes a circular convex portion, 55 denotes a concave surface, 56 denotes a protruding portion, and 57 denotes an envelope.

[0019]

As shown and described above, according to the packaging material of the present invention, packaging can be carried out with one touch only by placing an article on the packaging material. Therefore, packaging can be performed simply and reliably without any complicated work. Further, the packaging material of the present invention has not only a shock buffering property but also a high holding property for the article to be packaged,
The article can be wrapped softly while preventing the balls from rotating around in the packaging material. Furthermore, since the packaging materials of the present invention can be stacked, they can be used very advantageously without requiring a large space during storage and transportation.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a packaging material of the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is an end view showing the wrapping material in a state where the article is not wrapped.

FIG. 4 is an end view showing an inverted state of a packaging material when packaging an article.

FIG. 5 is a plan view showing another example of the present invention.

FIG. 6 is a sectional view thereof.

FIG. 7 is an end view showing a state where the packaging material shown in FIG. 5 does not package an article.

FIG. 8 is an end view showing the inverted state.

FIG. 9 is a sectional view showing another example of the present invention.

FIG. 10 is a sectional view showing another example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Packaging material 11 Soft base material sheet 12 Circular convex part 15 Concave surface 20 Encapsulation piece 21 Tip part 22 Concave shape

Claims (4)

(57) [Claims] 1. A soft base sheet mainly composed of a synthetic resin foam, wherein a central portion of the base sheet is formed as a circular convex portion having a concave surface whose central portion is lowered. A packaging material, wherein a wrapping piece that wraps around the article when it is lifted upward by the reversal of the outer edge of the circular convex portion is integrally extended on the outside. 2. The packaging material according to claim 1, wherein the wrapping piece is formed in a concave shape in which a tip portion is curved upward. 3. The packaging material according to claim 1, wherein a projection is formed at a center of the circular projection. 4. The packaging material according to claim 1, wherein the wrapping pieces are formed radially.