JPH0872926A - Article-packaging apparatus - Google Patents

Abstract

PURPOSE: To provide a new structure for an article-packaging apparatus which can be adopted to various sizes of an article to be packaged by imparting a stretchability in the circumferential direction of the packaging apparatus further for the packaging apparatus wherein an article can be packaged by one touch single operation in such a manner that an article to be packaged in placed at the central seat part, and a tilted part for inverting is simply inverted to package the article. CONSTITUTION: A packaging apparatus consists of a flexible sheet form object 21 of which the major component is a synthetic resin expanded object, and is equipped with nearly circular central seat part wherein the bottom part of an article to be packaged is put, tilted part 23 for inverting which is extended with a tilt from the central seat part to the external lower part so that the central seat part may be lifted upward, and the tilted part 23 for inverting may be inverted inward accompanying with a descent of the central seat part, and a packaging part 24 which is formed to the outside from the tilted part for inverting. For such a packaging apparatus, a stretchability is imparted in the circumferential direction by forming at least the tilted part for inverting into a bellows part of which the cross section is wave-shaped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrapping tool, and more particularly to a soft wrapping tool capable of softly wrapping individual objects to be wrapped with one touch.

[0002]

2. Description of the Related Art In order to protect fruits, ornaments, daily necessities, precision products, various parts, etc. from the impact and surface damage, various packaging materials individually and softly wrap almost the entire outside of the packaged object. It has been known. The most common one is a packaging material in which a sheet-shaped synthetic resin foam is provided with a predetermined concave article storage portion.

However, in this packaging material, since the article storage portion is formed in a predetermined shape and size in advance, it is necessary to facilitate various sizes for articles having different shapes or sizes. There was a problem. Further, this type of packaging material is not effective for the one having a large surface irregularity or the one having a complicated surface.

In order to solve such a problem, the applicant of the present invention firstly made a soft sheet-like material mainly composed of a synthetic resin foam, and had a substantially circular shape on which the bottom of the packaged object was placed. A central seat portion, and an inversion slant portion that extends upward from the central seat portion so as to incline inward as the central seat portion is lifted upward and is inverted as the central seat portion descends;
A wrapping tool having a wrapping portion formed outward from the inversion sloping portion was proposed.

According to this wrapping tool, it is only necessary to invert the inversion slanted portion while placing fruits, ornaments, daily necessities, precision products or various parts to be packaged in the central seat portion.
There is the convenience that the article can be easily packaged with one touch. At the same time, according to this packaging tool, since it is easy to manufacture and can be stacked because it is sheet-like, there is an advantage that it can be used extremely advantageously without requiring a large space during storage, storage and transportation.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a packaging tool capable of wrapping an article with one touch simply by placing an article to be packaged on such a central seat and reversing the reversing inclined section. Furthermore, the present invention is intended to propose a novel structure of an article wrapping tool which can cope with the size of an article to be packaged by making the wrapping article stretchable in the circumferential direction.

[0007]

That is, the present invention provides:
It is made of a soft sheet material mainly composed of synthetic resin foam, and has a substantially circular center seat portion on which the bottom of the packaged object is placed.
A reversing slope extending from the central seat to a lower outward direction so as to lift the central seat upward and invert inward as the central seat descends; A packaging having a wrapping portion formed in one direction, characterized in that at least the reversing inclined portion is a bellows portion having a corrugated transverse cross section, thereby providing elasticity in the circumferential direction. Pertain.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a plan view showing an example of the packaging tool of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is FIG.
6 is a cross-sectional view taken along line 3-3 of FIG. 4, FIG. 4 is a partially enlarged end view showing the expansion and contraction state of the bellows portion of the reversing inclined portion, and FIG. 5 is a partially enlarged end view of the conventional reversing inclined portion shown for comparison. FIG. 7 is an end view of the wrapping tool showing a state before packing the article, FIG. 7 is an end view of the wrapping tool showing an inverted state at the time of packing the article, and FIG. 8 is a soft sheet base material used for manufacturing the wrapping tool of the present invention. Sectional view, FIG. 9
Is a cross-sectional view of a molding die showing a molding state of the packaging tool of the present invention,
FIG. 10 is a sectional view of a molded product obtained by the molding die.

As shown in FIGS. 1 to 3, a wrapping tool 20 of the present invention comprises a soft sheet-like material 21 mainly made of synthetic resin foam, and integrally extends to a central seat portion 22 and its outside. The inverted slope portion 23 and the enclosing portion 24 are formed.

First, as the soft sheet-like material 21 used in the packaging device 20 of the present invention, a flexible sheet material that softly wraps the surface of an article to be packaged such as fruits without scratching is used. For example, a sheet material mainly composed of a synthetic resin foam made of polyethylene, polypropylene, polystyrene, polyurethane or the like is a suitable material. A composite laminated sheet material obtained by laminating another foamed or non-foamed sheet material or a mesh material on a synthetic resin foam may be used as needed.

As shown in FIG. 6, the central seat portion 22 is a portion on which the bottom portion of the article M to be packaged is placed, and is formed substantially in the central portion of the packaging tool 20. In the illustrated embodiment, the central seat portion 22 is formed in a substantially circular shape, but it may be a substantially elliptical shape, a substantially triangular shape, a substantially quadrangular shape, a substantially polygonal shape, or the like, depending on the relationship with the object to be packaged. can do.

In addition, the central seat portion 22 has cushioning properties and heat retaining properties (cold retaining properties) at the bottom of the packaged article, its rigidity (strength), and moisture that may accumulate on the upper surface of the central seat portion. Annular or radial ribs can also be provided for the purpose of housing.

The inversion slant portion 23 is extended from the central seat portion 22 with a slant toward the bottom so as to lift the central seat portion 22 upward and invert it inward as the central seat portion 22 descends. It The inverted inclined portion 23 is formed in a dome shape with a gentle inclination so that when the article to be packaged is placed on the lifted central seat portion 22 and the bottom portion thereof is pressed to descend downward (invert). .

As is best understood from the enlarged cross-sectional views of FIGS. 3 and 4, the inverted inclined portion 23 is formed in a corrugated portion having a corrugated cross section, and is stretchable in the circumferential direction. ing. Therefore, even when packaging a relatively large object to be packaged or a partially protruding article, the object to be packaged is softly and surely wrapped by expanding or contracting in whole or in part according to the shape of the object to be packaged. be able to.
Reference numeral 23E in FIG. 4 represents the bellows portion in the expanded state.

Further, by forming the cross section of the reversing inclined portion 23 into a corrugated shape, the waist strength is imparted, so that the inversion of the reversing inclined portion 23 can be reliably and effectively reversed. There is also. Further, there is an advantage that the buffering property and the heat retaining property (cooling property) near the lower portion of the packaged object after the reversal are enhanced.

Incidentally, FIG. 5 is a partially enlarged sectional view of the conventional inverted inclined portion 23P shown for comparison, but in the prior art, it has a bead-shaped cross section as shown in the figure and has been described above. There was no such effect as elasticity.

The enclosing portion 24 is integrally extended radially or circularly outward from the inversion sloping portion 23 and is formed in a brim shape of a hat. The wrapping portion 24 is formed in an appropriate length and shape according to the shape and size of the article to be packaged.

The wrapping portion 24 is preferably formed in a concave shape with its tip curved upward so that the upper portion of the article can be wrapped. The enclosing portion 24 inclines inward as the reversing inclined portion 23 is inverted, and completely wraps around the article M to be packaged, as shown in FIG. 7.

As in this embodiment, if a notch is formed in the tip of the wrapping portion 24 to improve the degree of freedom of the tip portion, it becomes possible to wrap the object to be wrapped more reliably.

When the ribs 28 are provided in the longitudinal direction of the wrapping portion 24, the wrapping portion 24 is provided with rigidity, and the side surface and the upper portion of the packaged object at the time of packaging and the heat retention. There is also a merit to improve the property (cooling property). In consideration of designability, formability, etc., as shown in FIGS. 1 to 3, it is desirable that the ribs 28 of the encapsulation portion 24 are formed in accordance with the wave of the inversion slant portion 23 described above. Is.

The packaging of the present invention is manufactured by a known molding method, but vacuum molding is preferable and advantageous in terms of moldability and economy. 8 to 10 show a manufacturing example thereof. The soft sheet base material 40 made of synthetic resin foam shown in FIG. 8 is formed into a sheet by a known means, and is preheated and appropriately softened and placed in the vacuum forming die 50.

As shown in FIG. 9, the vacuum forming die 50 is composed of a lower die 51 and an upper die 52, and has a predetermined center seat portion,
It is provided with mold surfaces 53 and 54 that define the shapes of the inversion inclined portion and the wrapping portion. The lower die 51 is provided with a plurality of vacuum suction holes 55 opening in the die surface 53, and is connected to a vacuum source 56 such as a vacuum pump provided outside the die. The soft sheet base material 40 softened by heating is the mold surface 53 of the lower mold 51.
It is placed on the mold surface 5 by the vacuum suction hole 55.
3 is closely adhered onto the sheet 3, and is pressed by the die surface 54 of the upper die 52 to form the sheet-like material 41 having a predetermined shape. Then, as shown in FIG. 10, after molding, the outer periphery of the sheet-like material 41 is cut by a press or the like to obtain a packaging tool 42. Reference symbol C is a cutting line.

[0023]

As shown and described above, according to the packaging tool of the present invention, since the inversion slanted portion is formed on the bellows portion having a corrugated cross section to give elasticity, it is possible to form an irregular shaped article. It is also soft and reliable, and has excellent holdability. Further, since the waist strength is imparted by forming the cross section of the inversion slanted portion into a corrugated shape, there is an effect that the inversion of the inversion slanted portion can be reliably and effectively performed. Further, there is an advantage that the buffering property and the heat retaining property (cooling property) near the lower portion of the packaged object after the reversal are enhanced.

Further, according to the present invention, by simply reversing the reversing inclined portion while placing fruits, ornaments, daily necessities, precision products or various parts to be packaged in the central seat,
The article can be easily packaged with one touch.

Furthermore, since the packaging device of the present invention can be stacked, it does not require a large space during storage, storage and transportation and can be used extremely advantageously.

In addition, the packaging tool of the present invention is very economical because it can be manufactured simply and in large quantities by vacuum forming as described in the embodiments.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line 2-2 of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a partially enlarged end view showing an expanded / contracted state of a bellows portion of an inverted slope portion.

FIG. 5 is a partially enlarged end view of a conventional inverted sloping portion shown for comparison.

FIG. 6 is an end view of the wrapping tool showing a state before packaging the articles.

FIG. 7 is an end view of the packaging device showing an inverted state during packaging of the article.

FIG. 8 is a cross-sectional view of a soft sheet base material used for manufacturing the packaging device of the present invention.

FIG. 9 is a cross-sectional view of a molding die showing a molded state of the packaging tool of the present invention.

FIG. 10 is a cross-sectional view of a molded product obtained by the molding die.

[Explanation of symbols]

 20 article wrapping tool 21 soft sheet-like material 22 central seat portion 23 inverted sloped portion 24 wrapping portion 28 rib 40 soft sheet base material 50 vacuum forming mold

Claims (1)

[Claims] 1. A substantially circular central seat portion, which is made of a soft sheet-like material mainly composed of synthetic resin foam, and on which a bottom portion of an article to be packaged is mounted, and the central seat portion which is lifted upward and which is located in the center. A package having a reversing inclined portion extending from the central seat portion downwardly and outwardly so as to invert as the seat portion descends, and a packaging portion formed outward from the reversing inclined portion. An article packaging tool, wherein at least the inversion slanted portion is formed into a corrugated portion having a corrugated cross section so as to have elasticity in a circumferential direction.