JPH061218U - Packaging container - Google Patents

Abstract

(57) [Summary] [Purpose] The object to be packaged does not move significantly in the packaging container, therefore there is no risk of damage to the object to be packaged, and the object to be packaged is unevenly distributed in the packaging container. Without
(EN) Provided is a packaging container having an excellent appearance and capable of saving packaging materials. [Structure] A packaging container in which the opening of a tray 1 in which concave and convex portions 2 and projections 61, 62, 63 are formed on a bottom plate to form irregularities is closed by a film 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a packaging container, and more particularly, to a packaging container that is resource-saving and protects an object to be packaged from damage.

[0002]

[Prior art]

 Rose cakes such as senbei, hail, hard candy and hanarinto, delicacies such as squid and squid smoked, beans, and foods such as ginkgo and tsukudani were long packed in bags. . However, as the items to be packaged such as rose cakes, delicacies and foods move freely in the bag as the bag moves, the bag looks inferior to one of the bags and the appearance of the bag is inferior. There was a drawback that the items to be packaged were often damaged by movement. In order to overcome such drawbacks, a method has been adopted in which after the articles to be packaged are stored in a tray having an uneven surface on the bottom plate, the entire tray is further wrapped with a bag such as a plastic film. Although this method can overcome the drawbacks of the bag as described above, it requires a large amount of extra packaging material as compared with the bag. As a result, packaging costs increase and the amount of waste also increases, which is a problem under the current circumstances where environmental conservation is important.

[0003]

[Problems to be solved by the device]

 The present invention does not allow the packaged object to move freely and largely in the packaging container, thus reducing the risk of damage to the packaged object and ensuring that the packaged object is in the packaging container. It is an object of the present invention to provide a packaging container which is free from uneven distribution, has an excellent appearance, and can save packaging materials.

[0004]

[Means and actions for solving the problems]

 The present invention is a packaging container in which an opening of a tray in which a recess is formed in a bottom plate is closed with a film or a sheet. The tray in the present invention can be obtained by molding a thermoplastic sheet (including a plastic film) in the same manner as the tray used as a conventional packaging container. The resin used for this thermoplastic sheet may be thermoplastic, and both synthetic resin and natural resin can be used. Typical examples of these resins include polyolefins such as polyethylene and polypropylene, polyvinyl chloride, polystyrene, polyesters, polyvinylidene chloride, fluororesins, polymethylmethacrylate, polyamides, polycarbonates, polyphenylene oxides, polyurethanes and polyacetals. It is possible to use a reinforced resin in which various fillers are mixed with these resins. Although a single layer sheet is used as these sheets, both thin non-foamed sheet and foamed sheet can be used as the single layer sheet. It is also possible to use a laminated sheet in which sheets of the same type or different types are laminated. The thickness of the thermoplastic sheet can be appropriately selected depending on the type of thermoplastic sheet, the purpose of packaging, the type and weight of the article to be packaged, and the like. As a tray forming method, for example, a press forming method such as vacuum forming or pressure forming is preferably adopted. Above all, vacuum forming is preferable.

The object to be packaged is a film or sheet (hereinafter collectively referred to as a sheet, etc.) that closes the opening of the tray and the tops of the protrusions that separate the recesses provided in the bottom plate of the tray. It is held in the gap between and and is fixed inside the container, and the packaged object does not move significantly even if the packaging container is moved. The shape of the recessed portion arranged at the bottom of the tray is not particularly limited as long as it has the above-described function, and its planar shape may be various shapes. For example, a circle, an ellipse or Ovals, polygons such as triangles and hexagons are practically preferable. It should be noted that one tray may be provided with concave portions having one or more types of shapes. Usually, a plurality of these recesses are provided on the bottom of the tray, and the number thereof is appropriately selected depending on the size of the bottom of the tray, the type and size of the article to be packaged and the like. The plurality of recesses are arranged in, for example, a staggered pattern or a lattice pattern. The recesses are separated by continuous or intermittent projections. The height of the protrusion is not particularly limited as long as it achieves the above-mentioned action, but in practice, the distance between the top of the protrusion and the sheet that closes the opening is generally smaller than the minimum size of the packaged item. Is also determined to be smaller.

Further, a plurality of continuous or intermittent projections may be provided on the bottom plate of the tray so as to be isolated from each other, and the other space may be a recess. In this case, the shape of the protrusion may be, for example, an elongated pyramid or prism such as a rectangular shape and a rectangular shape curved with a large curvature, and a cylindrical shape and an elliptic cylinder shape. It is said that These protrusions are preferably arranged such that their long axis directions are substantially in one direction. In addition, it is preferable that the intervals between the protrusions overlap with other protrusions. A large number of small irregularities can be provided on the inner surface of the bottom plate of the tray to prevent slippage, and this is preferable.

There is no particular limitation on the sheet or the like for closing the tray opening, and there are breathable, non-breathable, transparent, opaque, printed, and printed sheets. Not available, synthetic resin, natural resin, thermoplastic resin or thermosetting resin in the case of synthetic resin, non-woven fabric, woven fabric, papermaking, microporous membrane, Any perforated film or sheet can be used. After the articles to be packaged are stored in this tray, the opening of the tray is closed with the above-mentioned sheet or the like. To close the opening of the tray with a sheet, etc., cover the opening with a sheet wider than the opening of the tray and fix the excess part to the outside of the tray with, for example, an adhesive, or the upper edge of the opening. A flange may be provided on the outer side of the flange, and a sheet having a shape substantially equal to the shape of the opening defined by the outer peripheral shape of the flange may be fixed to the flange with an adhesive or the like.

[0008] Preferably, the tray and a sheet that closes the opening thereof are integrally formed by vacuum molding or the like, with all or part of at least one ridge of the packaging container remaining, and the wrapping is performed from the ridge. It is also possible to fill the product in a packaging container and then seal this edge with cellophane tape or the like.

The object to be packaged in the packaging container of the present invention is not particularly limited as long as it is so-called, but for example, rose confectionery such as senbei, hail, hard candy and flower forest sugar, rips The delicacies such as smoked squid and sliced squid, beans, and foods such as ginkgo and tsukudani are preferably packaged.

[0010]

【Example】

 The present invention will be described more specifically with reference to the embodiments shown in the drawings. The invention is not limited to these examples. That is, FIG. 1 is a bottom view of a typical example of the packaging container of the present invention, and FIG. 2 is a sectional view of the packaging container shown in FIG. The tray 1 is an inverted truncated pyramid whose opening has a substantially rectangular shape. On the bottom plate of the tray 1, a large number of recessed portions 2, 2, ... 2, Which are trapezoidal in plan view and have an inverted truncated pyramid shape, are arranged by being separated by continuous protrusions 3, 3 ,. At the upper edge of the opening of the tray 1, a brim 4 is stretched outward. After the items to be packaged are stored in the tray 1, the film 5 is fixed to the collar 4, and the opening of the tray 1 is closed.

FIG. 3 is also a bottom view of the packaging container of the present invention, and FIG. 4 is a sectional view of the packaging container shown in FIG. This packaging container is substantially the same as the packaging container shown in FIGS. 1 and 2 except that the projections have different shapes and a large number of groove grooves-linear irregularities-are provided on the bottom plate of the tray as slip stoppers. There is no different place. That is, the protrusions 6, 6, ... 6 are pyramidal truncated pyramids each having an elongated planar shape. These protrusions 6, 6, ... 6 are arranged at intervals on a plurality of straight lines parallel to the short side of the tray. The intervals between the projections 61, 61 on a certain straight line are made to overlap with the projections 62 and 63 on the other straight line. In the part of the bottom plate of the tray 1 where the projections 6, 6, ... 6 are not arranged, a large number of elongated grooves 7, 7, ... 7 are provided in parallel with the long side of the tray 1 without any gaps, and slip prevention is performed. It is said that.

[0012]

[Effect of device]

 The packaging container of the present invention does not move significantly because the movement of the object to be packaged in the packaging container is limited, so that the object to be packaged is not damaged, and the object to be packaged is not packaged. It is not unevenly distributed in the container, has an excellent appearance, and saves packaging materials, which helps to preserve the environment.

[Brief description of drawings]

FIG. 1 is a bottom view of a typical example of the packaging container of the present invention.

2 is an AA cut end view of the packaging container shown in FIG. 1. FIG.

FIG. 3 is a bottom view of another representative example of the packaging container of the present invention.

4 is a BB cut end view of the packaging container shown in FIG. 3. FIG.

[Explanation of symbols]

 1 Tray 2 Recess 3 Protrusion 4 Collar 5 Film 6 Protrusion 61 Protrusion 62 Protrusion 63 Protrusion 7 Protrusion groove

Claims (3)

[Scope of utility model registration request] 1. A packaging container in which the opening of a tray having a recessed portion formed in a bottom plate is closed with a film or a sheet. 2. The packaging container according to claim 1, wherein the tray and the film or sheet for closing the opening thereof are integrally formed. 3. The packaging container according to claim 2, which is obtained by vacuum forming.