JP2005008158A - Packaging container suitable for heated sales - Google Patents

Abstract

[PROBLEMS] To provide a bottle for room temperature filling / warming sales, especially to the extent that the panel surface does not stick out due to the weight of the contents after filling, and does not impair the appearance of the packaging container during warm sales. Providing a packaging container that has the function of reducing the pressure increase in the container by changing the shape of the panel to the extent that the appearance of the packaging container is not significantly impaired by protruding part of the label attached to the outside. To do.
A packaging container includes a plurality of panel portions in a body portion, and a panel surface of each panel portion is recessed inward of the container and includes a rib that vertically extends a central portion of the panel portion. The rib acts as a beam to prevent the panel part from popping out due to the weight of the contents filled at room temperature, and the panel surface swells due to the pressure inside the container increasing during heating by the hot warmer. A part of the label is protruded outward so that the appearance of the packaging container is not significantly impaired.
[Selection] Figure 3

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging container suitable for hot sales by a hot warmer.
[0002]
[Prior art]
Conventionally, polyester biaxial stretch blow molded bottles and the like have been widely used as containers for soft drinks, juices, coffees and the like. As a filling method of the contents in this container, a hot pack filling method in which the contents are heated to about 85 ° C. to perform sterilization and filling at the same time, and room temperature filling in which the contents are filled at room temperature after sterilizing the container in advance. There is a way.
[0003]
In the case of hot pack filling, when the high temperature filled contents are cooled, the inside of the container is decompressed due to the volume reduction of the contents, and as a result, the container wall may be deformed. Such deformation of the container wall part causes a change in the entire container and impairs the commercial value of the container.
[0004]
Therefore, as a countermeasure against such deformation, a structure in which only a part of the container wall is deformed by volume reduction and decompression to prevent a change in the shape of the entire container, a so-called decompression panel is usually used. In general, a panel is provided with a rib for rigidity.
[0005]
On the other hand, for room temperature filling, it is necessary to prevent the panel portion from popping out due to the weight of the contents, and Patent Document 1 describes that the rigidity of the container is increased by providing a rib on the panel wall portion. Yes.
[0006]
[Patent Document 1]
Japanese Utility Model Publication No. 6-44804 (column 2, line 13 to column 3, line 20)
[0007]
[Problems to be solved by the invention]
1A and 1B show a conventional packaging container, in which FIG. 1A is a side view and FIG. 1B is a cross-sectional view taken along line AA in FIG. This packaging container is provided with a plurality of ribs 2 protruding from the panel surface in the panel part 1, whereby the rigidity of the panel part 1 is enhanced by the lateral ribs 2.
[0008]
However, when the packaging container used as such a conventional hot pack filling container is used as a packaging container that is heated and sold in a hot warmer installed in a convenience store or the like, the temperature of the contents is increased during heating. As a result, the pressure inside the container increases, and as a result, the panel wall portion protrudes outward, and a deformed lateral rib 2a protruding outward is formed as shown in FIG. When the label 3 is mounted so as to cover the panel portion, the appearance of the packaging container is significantly impaired as a result of a part of the label protruding outward by the deformed lateral rib 2a.
[0009]
The purpose of the present invention is a bottle for room temperature filling / warming sale, and the weight of the contents after filling the contents does not cause the panel surface to protrude, and to the extent that the appearance of the packaging container is not impaired at the time of warm sale, In particular, packaging that has the function of reducing the rise in pressure in the container by changing the shape of the panel to such an extent that part of the label attached to the body part protrudes outward and the appearance of the packaging container is not significantly impaired Is to provide a container.
[0010]
[Means for Solving the Problems]
The invention described in claim 1 solves the above-described problem, and includes a plurality of panel portions in the body portion, the panel surface of each panel portion is recessed inward of the container, and the center portion of the panel portion is formed. A gist is a packaging container suitable for heating sales, characterized by having ribs extending in the vertical direction.
[0011]
In the present invention, the rib acts as a column or a beam to prevent the panel portion from popping out due to the weight of the contents filled at room temperature, and the panel surface is increased by the pressure in the container during heating by the hot warmer. The bulge is suppressed to an extent that a part of the label attached to the body part protrudes outwardly so that the appearance of the packaging container is not significantly impaired.
[0012]
In the present invention, the left and right panel surface regions are preferably curved surfaces inclined from the peripheral edge of the panel portion toward the rib. As a result, the curved surface inclined inward of the container is expanded outwardly of the container to change the internal volume, and the rise in pressure in the container can be mitigated.
[0013]
In the present invention, the panel surface regions on both the left and right sides of the rib may be formed on flat surfaces which are formed on the peripheral edge of the panel portion via a step portion and are not inclined toward the rib. As a result, a flat surface located inward of the container relative to the outer peripheral surface of the trunk portion is inflated outwardly of the container through the stepped portion, thereby changing the internal volume and alleviating an increase in pressure in the container.
[0014]
In the present invention, the rib is formed in a recessed portion that is recessed inward of a V-shaped container, a recessed portion that is recessed inward of a U-shaped container, or a recessed portion that is recessed inwardly of a trapezoidal container. can do.
[0015]
In the packaging container of the present invention, a label made of, for example, a shrink film can be attached to the bottle body portion so as to cover the panel portion, and even if there is a change in the shape of the panel surface during heating by the hot warmer, the panel portion A part of the label covering is not protruded.
[0016]
The present invention can be applied to containers of any shape such as a cylindrical housing and a rectangular tube housing.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
3A and 3B show a packaging container according to the present invention, in which FIG. 3A is a side view, and FIG. 3B is a schematic cross-sectional view taken along line AA in FIG.
[0018]
The packaging container according to the present invention includes a plurality of panel portions 1 on the body portion of the container, the panel surface of each panel portion 1 is recessed inward of the container, and a cross section V that makes the central portion of the panel portion 1 vertical. A character-shaped rib 5 is provided.
[0019]
In the present invention, the rib 5 serves as a column or a beam to prevent the panel portion 1 from popping out due to the weight of the contents filled at room temperature, and the pressure in the container increases during heating by the hot warmer. A part of the label having the bulge of the panel surface attached to the body portion is protruded outward to suppress the appearance of the packaging container to a significant extent.
[0020]
In the present invention, the panel surface regions on the left and right sides are preferably curved surfaces 4 that are inclined from the peripheral edge of the panel portion 1 toward the rib 5 as shown in FIG. As a result, as shown in FIG. 4, the curved surface 4 inclined inward of the container is inflated outwardly to form a deformed curved surface 4a, and the internal volume can be changed to mitigate an increase in pressure in the container. .
[0021]
In this case, the deformed curved surface 4a is deformed to such an extent that it does not touch the label 3 that is mounted so as to cover the panel portion 1, and the label 3 is not deformed.
[0022]
FIG. 5 shows another embodiment of the present invention. In this embodiment, the panel surface regions on both the left and right sides of the rib 5 are formed on the flat surface 6 formed on the peripheral edge of the panel portion 1 via the step portion 6 and not inclined toward the rib 5. Has been. Thereby, the flat surface 7 located inward of the container with respect to the outer peripheral surface of the trunk portion via the stepped portion 6 is inflated outward of the container to change the internal volume, thereby mitigating the rise in pressure in the container.
[0023]
In the present invention, the rib 5 is not only recessed inwardly of the V-shaped container as shown in FIGS. 3 and 4, but also recessed inward of the U-shaped container as shown in FIG. It is also possible to apply a rib 8 made of a recessed portion or a rib 9 made of a recessed portion recessed inwardly in a trapezoidal container as shown in FIG.
[0024]
The present invention is not limited to the cylindrical casing as shown in FIG. 3, but can be applied to a rectangular casing or other types of casings.
[0025]
【The invention's effect】
As described above in detail, the packaging container of the present invention includes a plurality of panel portions in the body portion of the container, the panel surface of each panel portion is recessed inward of the container, and the center portion of the panel portion is vertically It is characterized by having a rib in the direction, and the rib acts as a pillar or beam to prevent the panel part from popping out due to the weight of the contents filled at room temperature, and during heating by a hot warmer In addition, it suppresses the swelling of the panel surface due to the increased pressure inside the container to a level that does not significantly impair the appearance of the packaging container by protruding part of the label attached to the body part outward. It is a packaging container suitable for room temperature filling and sales.
[Brief description of the drawings]
1A and 1B show a conventional packaging container, in which FIG. 1A is a side view and FIG. 1B is a sectional view taken along line AA in FIG.
2 is a cross-sectional view showing a state in which a rib of the packaging container of FIG. 1 is deformed so as to protrude outward from the container during heating by a hot warmer, together with a label.
3A and 3B show a packaging container of the present invention, in which FIG. 3A is a side view and FIG. 3B is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view showing a deformed state of a rib of the packaging container of the present invention shown in FIG. 3 together with a label during heating by a hot warmer.
FIG. 5 is an explanatory diagram showing another embodiment of the present invention.
FIG. 6 is an explanatory view showing still another embodiment of the present invention.
FIG. 7 is an explanatory view showing still another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Panel part 2 Horizontal rib 2a Deformation horizontal rib 3 Label 4 Curved surface 4a Deformation curved surface 5 Rib 6 Step part 7 Flat surface 8 Rib 9 Rib

Claims (7)

Suitable for heated sales, characterized by having a plurality of panel parts in the body part, the panel surface of each panel part is recessed inward of the container, and a rib that vertically extends the center part of the panel part Packaging container. 2. The packaging container suitable for warming sales according to claim 1, wherein the panel surface areas on the left and right sides of the rib are curved surfaces inclined from the peripheral edge of the panel portion toward the rib. The panel surface area on both the left and right sides of the rib is a flat surface formed on the peripheral edge of the panel portion via a step portion and not inclined toward the rib. Packaging container suitable for hot sale. The packaging container suitable for heating sales according to any one of claims 1 to 3, wherein the rib is a recessed part that is recessed inwardly of the V-shaped container. The packaging container suitable for heating sales according to any one of claims 1 to 3, wherein the rib is a recessed part that is recessed inwardly of the V-shaped container. The packaging container suitable for warming sales according to any one of claims 1 to 3, wherein the rib is a recessed part that is recessed inwardly in a trapezoidal cross-section type container. The packaging container suitable for heating sales according to any one of claims 1 to 6, wherein a label is attached to the bottle body part so as to cover the panel part.

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