JP2016216112A - Packaging container including partition part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container enabling partitioning content, and comprising a container body and a lid body which can avoid thermal influences caused by contact of content so as not to cause deformation of the lid body even when applying each container to a microwave oven.SOLUTION: A packaging container is obtained by: partitioning a storage chamber of a container body 10 by a partition part 13 raised from a bottom wall 11; forming a fitting recessed groove 14 on the whole upper surface of the partition part 13; forming a partition part 23 on the same position as the partition part 13 on the container body 10 side on the rear face of a top plate 21 of the lid body 20; and forming a fitting projection rib 24 to be stored in the fitting recessed groove 14 on the inner end face of the partition part 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging container including a container body and a lid fitted to the container body, and more particularly to a packaging container having a partition portion in the container body.

  A packaging container comprising a container body and a lid fitted to the container body can be provided inexpensively and hygienically because a synthetic resin sheet can be formed as a material, and a sealed space can be formed inside. Various containers have been proposed as one-way containers, such as “Bento” containers and “Sensai” containers sold at supermarkets.

  In particular, for packaging containers having a partition part in the container body, the contents can be partitioned by the partition part, which is convenient for filling lunch box rice and different types of prepared dishes. This type of packaging container has been proposed as No.1. Of course, examples of packaging containers having a partition in such a container main body include those seen in Patent Document 2 and Patent Document 3.

JP 2013-49439 A, Abstract Japanese Utility Model Publication No. 61-161233 Utility model registration No. 2559663 publication

The invention described in Patent Document 1 proposed by the applicant is
“(1) Increase the rigidity of the lid side partition and the lid itself by making the grooves formed on the left and right sides of the lid side partition, which are fitted to the main body side partition, shallower than the other grooves (ensure the rigidity).
(2) The grooves formed on the left and right sides of the lid side partition are made shallower than other grooves so as not to increase the stretching in the vicinity of the lid side partition (improvement of sheet formability).
(3) The top plate of the lid should not be made smaller by the grooves formed on the left and right sides of the lid side partition (ensure visibility) ”
For the purpose of solving
“It has a container body with a flange on the periphery of the opening, and a fitting flange that fits inside and outside the flange, and a groove is formed inside this fitting flange. A packaging container comprising a lid having a top plate raised above the upper surface of the fitting flange by a wall,
The container body is provided with a body side partition that rises from the bottom wall,
The lid body is provided with a lid side partition fitted to the main body side partition, and both sides of the lid side partition are provided with steps that are higher than the bottom surface of the groove and lower than the top plate. A packaging container characterized by that. "
It has the structure of.

Although the invention described in Patent Document 1 can achieve the original purpose with this and is sufficiently satisfactory, this type of packaging container is a so-called synthetic resin sheet as described above. It is generally manufactured by “sheet molding”, and when this type of container containing bento rice and prepared dishes is heated with a “microwave oven” etc., the container is deformed by heat. There are things to do. In other words, in this type of packaging container,
(4) When the entire container is heated, the lid should not be deformed by heat (avoidance of thermal effects).
Is demanded.

  Further, in Patent Document 2, it is made for the purpose of “providing a container in which food does not mix and its liquid juice and partition part do not flow to the outside or next to the outside”, as shown in FIG. “The lid 3 is provided with an abutting portion 4 formed in an inverted U-shaped cross section that can be continuously brought into contact with the upper edge 8 of the chamber 6 of the container body 1 and the upper edge 10 of the partition portion 2. In this way, it is possible to surely prevent partitioning and liquid leakage.

  However, the container described in Patent Document 2 is also likely to be deformed by the following reason when it is placed in a microwave oven or the like with the contents in the container. This is because, in the container of Patent Document 2, as shown in FIG. 4 (b), the lid portion fitted from above to the contact portion 4 formed in an inverted U-shaped cross section is the contact portion. 4 is in a state of hanging down on both sides, and this part is easily contacted by oily deep-fried prepared dishes etc., and is immediately heated when the oil adhering to the lid is heated. It is.

  In general, the container body is formed of a material having high rigidity and a certain degree of heat resistance, but the lid body has a rigidity or Often molded with a synthetic resin sheet that is thinner than the container body at the expense of heat resistance. For this reason, the lid portion fitted from above to the contact portion 4 formed in the inverted U-shaped cross section of Patent Document 2 is deformed by heat when applied to a microwave oven or the like. The deformation of the abutting portion 4 affects the entire lid body via the partition portion, and the lid body itself is greatly deformed. The above can be similarly applied to the partition portion in Patent Document 3 as shown in FIG.

  Therefore, the present inventors have become a lunch box and a side dish container, which may be heated in a microwave oven or the like for each container. As a result of various investigations on how to make sure that the contents can be partitioned without any deformation when placed on a range, etc., each of the container body and the lid The present invention has been completed by newly discovering that good results can be obtained by devising the partition.

  That is, the object of the present invention is to allow the contents to be partitioned, and to prevent the lid from being deformed even if it is placed in a microwave oven or the like for each container. An object of the present invention is to provide a packaging container composed of a container body and a lid body that can avoid the above-mentioned problem.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“It has a container body 10 having a fitting flange 12 on the periphery of the opening above the bottom wall 11, and a fitting flange 22 that is fitted or fitted to the fitting flange 12 of the container body 10. A packaging container 100 comprising a lid 20 having a top plate 21 on a rising wall 21a rising from the inside of a flange 22;
The storage chamber of the container body 10 is partitioned by a partition portion 13 rising from the bottom wall 11, and a fitting groove 14 is formed on the entire upper surface of the partition portion 13,
A partitioning portion 23 is formed at the same position as the partitioning portion 13 on the container main body 10 side on the back surface of the top plate 21 of the lid body 20, and the fitting convex rib accommodated in the fitting groove 14 on the inner end surface of the partitioning portion 23. Packaging container 100 characterized by forming 24 "
It is.

  That is, the packaging container 100 according to claim 1 includes a container body 10 that is formed into a sheet and a lid 20 that is fitted to the container body 10. A partition portion 13 for partitioning is formed, and a partition portion 23 is formed at the same position as the partition portion 13 on the container body 10 side on the inner surface side of the lid body 20. And the fitting convex rib 24 is formed in the lower surface of the partition part 23 by the side of this lid body 20, and this fitting convex rib 24 is in the fitting concave groove 14 formed in the partition part 13 side by the side of the container main body 10 side. It can be stored in the box.

  In this specification, the term “housing” is used as follows. In other words, when the fitting convex rib 24 is “stored” in the fitting groove 14, the sealing is performed as when the fitting flange 12 of the container body 10 is “fitted” to the fitting flange 22 of the lid 20. The meaning of a strong fitting state that maintains the state, the meaning of a looser fitting state that does not require a sealed state, and the tip of the fitting convex rib 24 is the inner bottom surface of the fitting groove 14. It includes various stages, such as the meaning of a state that is partially lifted from. However, it goes without saying that the fitting convex rib 24 is “stored” in the fitting concave groove 14 so that there is no lateral displacement between the two.

  The partition 13 on the container body 10 side is formed by projecting a part of the bottom wall 11 into a rib shape by sheet molding, as shown in each of FIGS. 2 and 3B. As shown, the storage chamber of the container body 10 is divided into, for example, a rice portion and other side dishes. On the other hand, when the lid 20 is fitted to the container main body 10 by forming the partition 23 at the same position with respect to the partition 13 of the container main body 10 on the lid 20 side, the partition 13 and the partition 23, a completely partitioned space is formed in the packaging container 100. As a result, the rice or the like stored in each storage chamber in the packaging container 100 is not mixed by the partitions 13 and 23.

  Further, in the packaging container 100 according to the first aspect, the fitting convex rib formed on the lower surface of the partition portion 23 on the lid 20 side in the fitting groove 14 formed on the upper surface of the partition portion 13 on the container body 10 side. 4 is stored, as shown in FIG. 4A, it is very likely that foodstuffs such as sugar beet packed in each storage chamber are in direct contact with the fitting convex rib 24 on the lid 20 side. Less. For this reason, even if the packaging container 100 packed with ingredients in each storage chamber is heated in a microwave oven, the ingredients are unlikely to directly contact the fitting convex ribs 24 on the lid 20 side. The fitting convex rib 24 and the partition part 23 are not immediately heated.

  Therefore, the packaging container 100 according to claim 1 is capable of partitioning the contents so that even if the container is placed in a microwave oven or the like, the contents of the lid 20 and the like are not deformed. Therefore, it is possible to avoid the influence of heat due to the contact of the metal.

Moreover, in order to solve the above subject, the means taken by the invention according to claim 2 is about the packaging container 100 according to claim 1 above.
“The width of the partition portion 23 on the lid 20 side is set to be equal to or smaller than the width of the upper surface of the partition portion 13 on the container body 10 side.”
It is.

  In the packaging container 100 according to the second aspect, as shown in FIGS. 2 and 3B, the inside of the packaging container 100 is visually recognized from above, that is, from the top plate 21 of the lid 20. In this case, since the width of the partition portion 23 on the lid body 20 side is equal to or less than the width of the upper surface of the partition portion 13 on the container body 10 side, there is no food that becomes a shadow of the partition portion 23 on the lid body 20 side. become.

  Therefore, the packaging container 100 according to the second aspect exhibits a function similar to that of the first aspect, and can sufficiently ensure the visibility in the packaging container 100.

As described above, in the present invention,
“It has a container body 10 having a fitting flange 12 on the periphery of the opening above the bottom wall 11, and a fitting flange 22 that is fitted inside or outside to the fitting flange 12 of the container body 10. A packaging container 100 comprising a lid 20 having a top plate 21 on a rising wall 21a rising from the inside of a joint flange 22,
The storage chamber of the container body 10 is partitioned by a partition portion 13 rising from the bottom wall 11, and a fitting groove 14 is formed on the entire upper surface of the partition portion 13,
A partition portion 23 is formed at the same position as the partition portion 13 on the container body 10 side on the back surface of the top plate 21 of the lid body 20, and fitted into the fitting groove 14 on the inner end surface of the partition portion 23. Having formed the convex ribs 24 "
The main feature of the structure is that the contents can be partitioned, and even if the container is placed in a microwave oven or the like, the contents can be contacted so that the lid 20 will not be deformed. It is possible to provide a packaging container 100 including the container body 10 and the lid body 20 that can avoid the thermal influence due to the above.

1 is a plan view of a packaging container 100 according to the present invention. The state which looked at the packaging container 100 from the front, (a) is the front view which showed the part other than 1 line | wire part with the dotted line, (b) is FIG. 2 which looked along the 2-2 line in FIG. It is a partial expanded longitudinal cross-sectional view of the 1 line | wire part in (a). The state which looked at the packaging container 100 from the side is shown, (a) is the side view which showed the part other than 3 line | wire part with the dotted line, (b) is FIG. 3 seen along line 4-4 in FIG. It is a partial expanded longitudinal cross-sectional view of the 3-3 line | wire part in (a). The state when foodstuffs are packed in the packaging container 100 is shown, (a) is a portion showing the positional relationship between the fitting convex rib 24 and the foodstuff in the lid 20 of the packaging container 100 according to the present invention. An enlarged longitudinal sectional view, (b) is a partially enlarged longitudinal sectional view showing a positional relationship between a fitting portion and a food material in a conventional packaging container. 1 shows a conventional technique, (a) is a partially enlarged sectional view of a fitting portion in a container shown in Patent Document 2, and (b) is a partially enlarged cross section of a fitting portion in a container shown in Patent Document 3. FIG. It is a top view of the container main body 10 which comprises the container 100 for packaging of this invention. 2 is a front view of the container body 10. FIG. 3 is a right side view of the container body 10. FIG. 2 is a left side view of the container body 10. FIG. 3 is a rear view of the container body 10. FIG. 2 is a bottom view of the container body 10. FIG. FIG. 7 is an end view of the container body 10 taken along line AA in FIG. 6. FIG. 7 is a BB end view of the container body 10 in FIG. 6. 3 is a plan view of the lid body 20. FIG. 3 is a front view of the lid body 20. FIG. 3 is a right side view of the lid body 20. FIG. 4 is a left side view of the lid body 20. FIG. 4 is a rear view of the lid body 20. FIG. 4 is a bottom view of the lid body 20. FIG. FIG. 15 is an end view of the lid 20 taken along CC in FIG. 14. FIG. 15 is a DD end view of the lid body 20 in FIG. 14. FIG. 15 is an end view of the lid body EE in FIG. 14.

  The invention according to each claim configured as described above will be described with reference to a packaging container 100 for a lunch box which is an embodiment shown in the drawings. FIG. 1 is a plan view of the packaging container 100 according to the present embodiment. This packaging container 100 is composed of a container body 10 and a lid body 20 which are each formed from a synthetic resin sheet.

  The material of the container main body 10 is a polypropylene containing a filler having a heat resistant temperature of 130 ° C., and is suitable when applied to a microwave oven and has good oil resistance. Further, this filler-filled polypropylene is a sheet having a thickness of about 0.30 mm to 0.60 mm (0.45 mm in this embodiment), and is easy to perform “sheet molding”. Is a container body 10 having sufficient rigidity as a lunch box container.

  On the other hand, biaxially stretched polystyrene or biaxially stretched polyethylene terephthalate having a heat resistant temperature of 80 ° C. is adopted as the material of the lid 20, and both are transparent or translucent sheets. Further, both materials are sheet-like with a thickness of about 0.15 mm to 0.40 mm (in this embodiment, 0.25 mm). Although it is inferior to the filler-filled polypropylene, which is the material of the main body 10, it has the necessary minimum appropriateness when the lid 20 is used. In addition, as for each oil resistance, biaxially stretched polystyrene is not so much, and biaxially stretched polyethylene terephthalate is sufficient.

  Even if the heat resistance is inferior to that of the container body 10 by forming the lid 20 into a sheet using the material as described above, transparency or translucency can be secured, and packaging through the lid 20 is possible. The visibility inside the container 100 can be improved. Of course, since the thickness of the lid 20 can be reduced, the material cost of the lid 20 can be kept low.

  As shown in FIGS. 1 to 3, the container body 10 constituting the packaging container 100 has a side wall 11 a rising from the periphery of the bottom wall 11 having a substantially rectangular shape in plan view, and an outer periphery of the side wall 11 a. A fitting flange 12 is formed in which a fitting flange 22 of the lid 20 described later is fitted to the outside. Of course, you may implement so that the fitting flange 22 may be fitted inside the fitting flange 12 (internal fitting). A partition portion 13 as shown in FIG. 1 is formed on the inner side of the bottom wall 11 so as to rise from the bottom wall 11.

  As shown in FIG. 1, the plan view shape of the partition portion 13 in the present embodiment is a substantially “T-shaped” continuous shape. For example, rice is placed in the lower left storage chamber, and the upper long storage chamber is used. It is made up of rice such as pilaf, and the storage room in the lower right is filled with side dishes such as fried noodles. The shape of the bottom wall 11 is not limited to that shown in FIG. 1 and can be implemented in various forms. It goes without saying that various designs can be made depending on what is packed in the packaging container 100. . And the fitting groove 14 as shown to each (b) of FIG.2 and FIG.3 is formed in the upper end of this bottom wall 11. FIG.

  Moreover, as shown in each of FIGS. 2 and 3B, the vertical cross-sectional shape of the partition portion 13 is a “mountain shape” in which the hem portion connected to the bottom wall 11 is widened. The width is narrowed to 5 mm to 15 mm. Thus, by making the partition part 13 into a mountain shape, the partition part 13 can be used as a reinforcing rib of the container body 10 and, of course, fitted to the upper end of the partition part 13 (end on the lid 20 side). Not only can the sheet forming of the groove 14 be performed easily, but also the sheet forming and die cutting of the partition 13 itself can be improved.

  And about the height of this partition part 13, it is set so that it may be -2 mm--4mm with respect to the uppermost part of the said container main body 10, for example with respect to the upper surface of the fitting flange 12. FIG. In other words, the upper end of the partition portion 13 is made slightly lower than the fitting flange 12, so that the maximum amount of stored items in the storage room partitioned by the partition portion 13 can be increased. It is shown that it is about the upper end of 13, and by keeping this position, it is possible to prevent the food material from being caught between the fitting flanges 12 and 22 when the lid 20 is closed.

  A fitting groove 14 is formed at the upper end of the partition 13 on the container body 10 side as shown in FIG. 2 and FIG. 3B, and the fitting groove 14 is formed in the partition 13. It is formed over substantially the entire upper end, the width other than the intersection is 2 mm to 3 mm, and the depth is about 0.5 mm to 1 mm. A fitting convex rib 24 on the lid 20 side, which will be described later, is accommodated in the fitting concave groove 14.

  The lid 20 is formed by sheet molding using the above-described material, and a fitting flange 22 that is fitted inside or outside the fitting flange 12 on the container body 10 side is formed on the outer peripheral edge thereof. A flat top plate 21 is formed at the upper end of the rising wall 21a rising from the fitting flange 22 so as to facilitate visual recognition in the packaging container 100. A partition portion 23 is formed on the inner surface of the top plate 21 at the same position as the partition portion 13 on the container body 10 side, and the inner end of the partition portion 23 is shown in FIG. As shown in FIG. 5, fitting convex ribs 24 that are accommodated in the fitting concave grooves 14 on the container body 10 side are formed. The height of the fitting convex rib 24 and the partitioning portion 23 is determined according to the shape of the fitting concave groove 14 on the container body 10 side where the fitting rib 24 and the partitioning part 23 are to be accommodated. The partition portion 23 and the fitting convex rib 24 can be visually confirmed in the packaging container 100 through the lid 20 so as to be equal to or smaller than the width of the upper surface of the portion 13.

DESCRIPTION OF SYMBOLS 100 Container for packaging 10 Container main body 11 Bottom wall 11a Side wall 12 Fitting flange 13 Partition part 14 Fitting groove 20 Lid 21 Top plate 21a Standing top wall 22 Fitting flange 23 Partition part 24 Fitting convex rib

Claims (2)

A container main body having a fitting flange at the opening peripheral edge above the bottom wall, and a fitting flange fitted inside or outside to the fitting flange of the container main body, and rises from the inside of the fitting flange A packaging container comprising a lid having a top plate on a rising wall,
The storage chamber of the container body is partitioned by a partition that rises from the bottom wall, and a fitting groove is formed on the entire upper surface of the partition,
The partition part is formed at the same position as the partition part on the container main body side on the back surface of the top plate of the lid, and the fitting convex rib to be housed in the fitting groove is formed on the inner end surface of the partition part. Packaging container characterized by.   The packaging container according to claim 1, wherein the width of the partition portion on the lid side is equal to or less than the width of the upper surface of the partition portion on the container body side.

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