JP2019182533A - Packaging container - Google Patents

Abstract

To realize a packaging container that can inhibit inadvertent opening, and can be easily opened when needed.SOLUTION: A packaging container 1 comprises a container body 3 and a lid 5 that are rectangular in plan view. A lid-opening region 11 where a body grip part 36 of the container body 3 and a lid grip part 56 of the lid 5 overlap is provided to at least one of four corners. A reverse taper engagement part 14 formed by engaging a body reverse taper part of the container body 3 with a lid reverse taper part 55 of the lid 5 is provided in the lid-opening region 11.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a packaging container.

  For example, packaging containers are used for packaging food such as lunch boxes and side dishes. Such packaging containers are often formed by sheet molding. An example of such a sheet-shaped packaging container is disclosed in Japanese Patent Application Laid-Open No. 2001-139045 (Patent Document 1). The packaging container [10] of Patent Document 1 includes a container main body [11] and a lid [12] fitted to the container main body [11].

  A body-side inner fitting portion [15] is formed on the periphery of the container body [11], and a lid-side inner fitting portion [16] is formed on the periphery of the lid [12]. Both the main body side inner fitting portion [15] and the lid side inner fitting portion [16] are tapered so as to incline toward the inside of the container [10] as they go upward. Then, the container body [11] and the lid [12] are fitted by the taper-shaped body-side inner fitting portion [15] and the lid-side inner fitting portion [16] coming into contact with each other. It is configured. As described above, in the packaging container having the tapered fitting portion, the container body and the lid can be firmly fitted, and the lid is not prepared when the packaging container is transported or displayed, for example. Can be prevented from opening.

  However, on the other hand, since the fitting between the container body and the lid is strong, there is a problem that it is difficult to open the lid when necessary.

Japanese Patent Laid-Open No. 2001-139045

  It is desired to realize a packaging container that can be prevented from being inadvertently opened and that can be easily opened when necessary.

The packaging container according to the present invention is
A packaging container comprising a container body and a lid, formed by sheet molding,
The container body and the lid are formed in a rectangular shape in plan view,
The container main body includes a bottom surface portion, a main body peripheral wall portion extending upward from the bottom surface portion, a main body flange portion extending outward from the main body peripheral wall portion, and a main body reverse taper portion provided on the peripheral side of the main body flange portion. And a main body knob portion composed of a protruding piece protruding outward from the main body flange portion,
The lid body is provided on the peripheral side of the top surface portion, the lid peripheral wall portion extending downward from the top surface portion, the lid flange portion extending outward from the lid peripheral wall portion, and the lid flange portion. A lid reverse taper portion that engages with the main body reverse taper portion, and a lid knob portion that is composed of a protruding piece that protrudes outward from the lid flange portion and is superimposed on the main body knob portion,
An open lid region where the main body knob and the lid knob are overlapped is provided at least one of the rectangular container body and the four corners of the lid,
A reverse taper engagement portion formed by engaging the main body reverse taper portion and the lid reverse taper portion is provided in the lid opening region.

  According to this configuration, the main body reverse taper portion and the lid reverse taper portion are engaged with each other in the reverse taper engagement portion, so that the container main body and the lid body are firmly fitted. Moreover, since the lid picking part is superimposed on the main body picking part, it is difficult for other objects such as fingers to be caught on the lid picking part. Accordingly, for example, the lid can be prevented from being inadvertently opened when the packaging container is transported or displayed. On the other hand, since the lid picking part is composed of a protruding piece that protrudes outward from the lid flange part, it is easy to open the lid while picking the lid picking part. And since the reverse taper engagement part is provided in the opening area | region where a lid picking part is arrange | positioned, in the said opening area | region, a tight fitting with a container main body and a lid body and the lid opening when needed are carried out. Ease is compatible. Accordingly, it is possible to realize a packaging container that can be prevented from being opened carelessly and that can be easily opened when necessary.

  Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Front view of the packaging container of the first embodiment Side view of packaging container Top view of packaging container Top view of the container body VV sectional view in FIG. VI-VI sectional view in FIG. VII-VII sectional view in FIG. The top view of the packaging container of 2nd Embodiment Partial enlarged view of FIG. XX sectional view in FIG. XI-XI sectional view in FIG. XII-XII sectional view in FIG. Front view of another embodiment of packaging container Schematic plan view of another embodiment of the container body Schematic plan view of another embodiment of the container body Schematic plan view of another embodiment of the container body

[First Embodiment]
A first embodiment of a packaging container will be described with reference to the drawings. In the present embodiment, a packaging container (food packaging container) 1 that accommodates food such as lunch boxes and side dishes as contained items will be described as an example.

  In the following, the direction toward the inner side of the packaging container 1 (direction from the outer edge side toward the central side) is referred to as “inward”, and the direction toward the outer side of the packaging container 1 (from the central side to the outer edge side). The direction of heading is called “outside”.

  As shown in FIGS. 1 and 2, the packaging container 1 includes a container body 3 and a lid 5. The packaging container 1 is formed by sheet molding. A container main body 3 and a lid 5 constituting the packaging container 1 are each formed by sheet molding.

  As shown in FIG. 3, the container body 3 and the lid 5 are formed in a rectangular shape in plan view. The “rectangular shape in plan view” means that the outer shape in plan view is a rectangle or is generally a rectangle as a whole. Therefore, the container body 3 and the lid 5 may be formed in a chamfered shape (folded line shape) or a curved shape as long as the outer shape in plan view is approximately rectangular as a whole. In the present embodiment, the container body 3 and the lid body 5 are formed in a rectangular shape in plan view, and each has a pair of long sides and a pair of short sides.

  As shown in FIGS. 1, 2, and 4, the container body 3 includes a bottom surface portion 31, a main body peripheral wall portion 32 extending upward from the bottom surface portion 31, and a main body flange portion 33 extending outward from the main body peripheral wall portion 32. The main body reverse taper portion 35 provided on the peripheral side (outer side) of the main body flange portion 33 and the main body knob portion 36 formed of a protruding piece protruding outward from the main body flange portion 33 are provided.

  The container body 3 has four body side parts 3S. A main body peripheral wall portion 32 is formed in each of the four main body side portions 3S. The main body peripheral wall portion 32 is formed continuously from the outer edge of the bottom surface portion 31. The main body peripheral wall portion 32 is formed to be inclined outward as it goes upward. The main body flange portion 33 extends outward from the upper end of the main body peripheral wall portion 32 along the horizontal direction.

  In this embodiment, each side (main body side part 3S) of the rectangular container main body 3 is formed in a straight line in a side view. The main body side 3S is arranged so as to be parallel to the bottom surface 31 in a side view. That is, the body side 3S of the present embodiment is formed such that the intermediate portion 3M and both end portions 3E are formed in a straight line, and the intermediate portion 3M and both end portions 3E are positioned at the same height. Yes.

  As shown in FIGS. 4 to 7, the container main body 3 has a main body skirt portion 34 that extends downward from the outer end portion of the main body flange portion 33. The main body skirt portion 34 is formed to incline outward as it goes downward over the entire circumference of the container main body 3. The main body skirt portion 34 is formed with a main body bulging portion 34A that bulges outward. On the lower side of the main body bulge portion 34A, a main body reverse taper portion 35 is formed continuously from the main body bulge portion 34A. The main body reverse taper portion 35 is formed so as to be inclined inward as it goes downward. In the present embodiment, the main body reverse tapered portion 35 is formed over the entire circumference of the container main body 3.

  As shown in FIG. 4, the main body knob 36 is provided at four corners of a rectangular (rectangular) container main body 3. The main body knob 36 is formed in a triangular shape in plan view. The main body knob 36 having a triangular shape in plan view constitutes a corner of the rectangular container main body 3. The main body knob 36 extends outward from the lower end of the main body skirt 34 along the horizontal direction. As shown in FIG. 5, the main body knob portion 36 of the present embodiment includes a main body knob surface portion 36 </ b> A formed in a planar shape and an upper protrusion portion 36 </ b> B protruding upward from the main body knob surface portion 36 </ b> A.

  As shown in FIG. 4, the container main body 3 further includes a partition wall 38 that is formed so as to rise from the bottom surface portion 31 and that partitions a storage portion 37 that stores an object to be stored. A plurality of accommodating portions 37 are provided in a space surrounded by the main body peripheral wall portion 32. The plurality of accommodating portions 37 are partitioned by a partition wall 38. In the present embodiment, the partition wall 38 includes a main wall portion 38A that connects a pair of opposing main body peripheral wall portions 32, and a branch wall portion 38B that branches from the main wall portion 38A and extends to the main body peripheral wall portion 32. Yes. In the present embodiment, the partition wall 38 is formed so as to be substantially Y-shaped in plan view by the main wall portion 38A and the branch wall portion 38B. By providing such a partition wall 38, the strength of the bottom surface portion 31 can be improved, and the bottom surface portion 31 can be prevented from being bent by an external force accompanying the opening of the lid 5.

  As shown in FIGS. 1 to 3, the lid 5 includes a top surface portion 51, a lid peripheral wall portion 52 extending downward from the top surface portion 51, a lid flange portion 53 extending outward from the lid peripheral wall portion 52, and A lid reverse taper portion 55 provided on the peripheral side of the lid flange portion 53 and a lid knob portion 56 formed of a protruding piece projecting outward from the lid flange portion 53 are provided. The lid reverse taper portion 55 engages with the main body reverse taper portion 35. The lid knob 56 is superimposed on the main knob 36.

  The lid 5 has four lid sides 5S. A lid peripheral wall portion 52 is formed on each of the four lid side portions 5S. The lid peripheral wall portion 52 is formed continuously from the outer edge of the top surface portion 51. The lid peripheral wall portion 52 is formed to incline outward as it goes downward. The lid flange portion 53 extends outward from the lower end of the lid peripheral wall portion 52 along the horizontal direction.

  In the present embodiment, each side of the rectangular lid body 5 (lid body side portion 5S) is formed in a straight line in a side view. The lid side 5S is arranged so as to be parallel to the top surface 51 in a side view. That is, the lid body side portion 5S of the present embodiment is formed such that the intermediate portion 5M and both end portions 5E are formed in a straight line, and the intermediate portion 5M and both end portions 5E are positioned at the same height. ing.

  The lid 5 further has a lid skirt portion 54 that extends downward from the lid flange portion 53 over the entire circumference. As shown in FIG. 7, the lid skirt portion 54 extends from the outer end portion of the lid flange portion 53 so as to incline outward and downward from the lower end portion of the spread portion 54B. And a hanging portion 54C that hangs down.

  As shown in FIGS. 3, 5, and 6, a linear protrusion 54 </ b> D that protrudes inward from the lid skirt 54 is formed on the lid skirt 54 (specifically, the hanging part 54 </ b> C). Has been. In the present embodiment, a lid bulging portion 54A that bulges outward is formed at the boundary between the expanded portion 54B and the hanging portion 54C in the lid skirt portion 54. The linear protrusion 54D is formed continuously from the lid bulging portion 54A on the lower side (hanging portion 54C) of the lid bulging portion 54A (see FIGS. 5 and 6). The linear protrusion 54D forms a lid reverse taper portion 55. The lid reverse tapered portion 55 is formed so as to be inclined inward as it goes downward.

  As shown in FIG. 3, the lid reverse tapered portion 55 (linear protrusion 54 </ b> D) is provided at the four corners of the rectangular (rectangular) lid 5. Moreover, the cover body reverse taper part 55 is provided independently also in the both ends 5E of each cover body side part 5S. Furthermore, the cover reverse taper part 55 is provided independently also in the intermediate part 5M of a pair of long sides among the cover body side parts 5S. In addition, the cover body reverse taper part 55 is not provided in the intermediate part 5M of a pair of short sides among each cover body side part 5S.

  At a plurality of locations (in this example, the four corners and the middle portion 5M of each lid side portion 5S) of the lid peripheral wall portion 52, peripheral wall recesses 52A that are recessed inward are provided. The peripheral wall recess 52A extends in the vertical direction. The peripheral wall recess 52 </ b> A is formed over the entire area of the lid peripheral wall 52 in the vertical direction. The peripheral wall recess 52A can improve the strength of the lid peripheral wall 52, and can suppress the lid 5 from being bent by an external force. Thus, due to the synergistic effect of the partition wall 38 and the peripheral wall recess 52A in the lid peripheral wall portion 52 described above, the bending of the packaging container 1 due to external force can be effectively suppressed.

  The lid knob 56 is provided at the four corners of the rectangular (rectangular) lid 5. The lid picking portion 56 is formed in a generally triangular shape in plan view. The lid picking portion 56 having a triangular shape in plan view constitutes a corner portion of the rectangular lid 5. The lid knob 56 extends outward from the lower end of the lid skirt 54 along the horizontal direction. As shown in FIG. 5, the lid picking portion 56 of the present embodiment has a flat lid picking surface portion 56 </ b> A and a lower protrusion 56 </ b> B protruding downward from the lid picking surface portion 56 </ b> A. ing.

  As shown in FIG. 3, an open lid region 11 that is a starting point for removing the lid 5 from the container body 3 is provided on the outer periphery of the container. The open lid region 11 is provided at a plurality of locations on the outer periphery of the container. In the present embodiment, open lid regions 11 are provided at all four corners of the rectangular (rectangular) container body 3 and the lid 5. In the open lid region 11, the main body knob 36 and the lid knob 56 are overlapped. In the state where the main body knob 36 and the lid knob 56 are overlapped, as shown in FIG. 5, the upper protrusion 36 </ b> B of the main knob 36 and the lower protrusion 56 </ b> B of the lid knob 56, A gap is formed between the main body knob surface portion 36A and the lid knob surface portion 56A. Thereby, the lid picking portion 56 is easily picked when the lid is opened.

  The main body reverse taper portion 35 and the lid reverse taper portion 55 are engaged to constitute the reverse taper engagement portion 14. In the reverse taper engagement portion 14, the lid reverse taper portion 55 is in contact with and engaged with the main body reverse taper portion 35 from the outside. And the cover reverse taper part 55 and the main body reverse taper part 35 which contact | abut in this way are formed so that it may incline inward as it goes below. For this reason, the reverse taper engaging portion 14 is similarly inclined inward as it goes downward. By providing such a reverse taper engaging portion 14, the lid 5 is difficult to come off from the container body 3. The inclination θ (see FIGS. 5 and 6) of the reverse taper engagement portion 14 with respect to the vertical line is preferably 30 ° to 90 °, for example.

  When closing the lid, since it is necessary to push the lid reverse tapered portion 55 over the main body bulging portion 34A and push it downward, the lid 5 is required to have enough strength to withstand pushing. In this regard, as described above, since the peripheral wall recess 52A is provided in the cover peripheral wall 52 in the present embodiment, the strength of the cover peripheral wall 52 and thus the cover 5 is improved. Therefore, the lid 5 is not easily bent even if it is strongly pressed during fitting.

  The reverse taper engaging portion 14 is provided in all the open lid regions 11. In the present embodiment, since the open lid regions 11 are provided at all four corners of the rectangular (rectangular) container body 3 and the lid body 5, the reverse taper engaging portions 14 are also provided at all four corners. Yes. Thereby, the whole container main body 3 and the whole lid 5 can be fitted with good balance. In addition, since the four corners where two adjacent sides intersect are less likely to bend than each side, by providing the reverse taper engagement portions 14 at the four corners, it is possible to increase the strength against pressing during fitting.

  The reverse taper engaging portion 14 is provided in addition to the rectangular corners of the container body 3 and the lid body 5. In other words, the reverse taper engagement portion 14 is also provided in a region other than the open lid region 11 on the outer periphery of the container. The plurality of reverse taper engaging portions 14 are provided intermittently on the outer periphery of the container. In the present embodiment, the main body reverse tapered portion 35 is formed over the entire circumference of the container main body 3, and a plurality of linear protrusions that project inward from the lid skirt portion 54 to form the lid reverse tapered portion 55. 54D is formed intermittently. Thereby, the reverse taper engagement part 14 formed by engaging the main body reverse taper part 35 and the lid reverse taper part 55 is intermittently provided.

  As described above, the lid reverse taper portion 55 (linear protrusion 54D) includes the four corners of the rectangular (rectangular) lid 5, the both ends 5E of each lid side 5S, and a pair of long sides. It is provided independently in the middle part 5M. For this reason, the reverse taper engaging portion 14 is also formed between the four corners of the rectangular (rectangular) container body 3 and the lid body 5, both end portions of each side of the container body 3 and the lid body 5, and a pair of long sides. It is provided independently in the part. In addition, the reverse taper engagement part 14 is not provided in the intermediate part of a pair of short side.

  According to the packaging container 1 of the present embodiment, the container main body 3 and the lid body 5 can be firmly fitted in the open lid region 11 by the reverse taper engaging portion 14 provided in each open lid region 11. Moreover, unlike the case where the reverse taper engagement part 14 is provided continuously over the entire circumference by providing the plurality of reverse taper engagement parts 14 intermittently, the container body 3 and the lid 5 are excessively formed. It is possible to avoid a strong fit. In this case, by providing the reverse taper engaging portion 14 independently at the middle part of the pair of long sides, the pair of reverse taper engaging portions 14 provided in the lid opening regions 11 at the four corners is difficult to be fitted. With the long side, the container body 3 and the lid 5 can be appropriately fitted. Therefore, it is possible to prevent the lid from being inadvertently opened, and to easily open the lid when necessary.

  In addition, the reverse taper engaging portion 14 is provided in all the opening regions 11 and the fitting force is very high. In the opening region 11, the opening operation force is directly applied to the lid gripping portion 56. Since it is possible, it is possible to easily start disengagement. Although the opening operation force does not act directly in the area other than the opening area 11, the reverse taper engaging portion 14 is only intermittently provided in the area, so that the engagement can be easily released. it can. Therefore, also from this point, the packaging container 1 can be prevented from being opened carelessly and easily opened when necessary.

[Second Embodiment]
A second embodiment of the packaging container will be described with reference to the drawings. In this embodiment, the specific formation aspect of the reverse taper engagement part 14 in the open area | region 11 differs from 1st Embodiment. Hereinafter, with respect to the packaging container 1 of the present embodiment, differences from the first embodiment will be mainly described. Note that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof is omitted.

  As shown in FIGS. 8 and 9, the reverse taper engagement portion 14 of the present embodiment is configured such that the engagement depth differs depending on the position in the lid opening region 11. In the present embodiment, the main body reverse taper portion 35 is uniformly formed over the entire circumference of the container main body 3, while the lid body reverse taper portion 55 (the linear protrusion 54 </ b> D) of the lid opening region 11 is inwardly facing. The protruding amount is formed so as to differ depending on the position in the open lid region 11. Thereby, the engagement depth of the reverse taper engagement portion 14 formed by the engagement of the main body reverse taper portion 35 and the lid reverse taper portion 55 differs depending on the position in the lid opening region 11.

  More specifically, as shown in FIG. 10, at the center position of the lid opening region 11, the inward protrusion amount of the lid reverse taper portion 55 (linear protrusion 54D) is zero, and the reverse taper engagement portion The engagement depth of 14 is zero. Further, as shown in FIG. 11, at the position slightly shifted from the center position in the open lid region 11, the inward protrusion amount of the lid reverse taper portion 55 (linear protrusion 54D) is slightly increased, and the reverse taper relationship The engagement depth of the joint portion 14 is slightly deeper. Furthermore, as shown in FIG. 12, the inward protruding amount of the cover reverse taper portion 55 (linear protrusion 54 </ b> D) is further increased at positions near both ends in the open lid region 11, and the reverse taper engagement portion 14 The engagement depth is further increased.

  Thus, the reverse taper engaging portion 14 of the lid region 11 is configured such that the engagement depth is deeper on both sides than the center position of the lid region 11. The engagement depth of the reverse taper engagement portion 14 is configured to gradually become deeper from the center position toward the both end positions (in other words, gradually decrease from the both end positions toward the center position) (see FIG. 9). Moreover, the reverse taper engaging part 14 of the lid opening region 11 is formed symmetrically with respect to a plane including a central position where the engagement depth is zero in the present embodiment.

  As can be understood from FIG. 8, the inward protrusion amount of the lid reverse taper portion 55 (linear protrusion 54D) provided at both ends 5E of each lid side portion 5S is constant regardless of the position. is there. In addition, the inward protruding amount of the lid reverse taper portion 55 (linear protrusion 54D) provided in the pair of long side intermediate portions 5M among the lid side portions 5S is also constant regardless of the position. That is, the engagement depth of the reverse taper engagement portions 14 provided at both ends of each side of the container body 3 and the lid 5 and the middle portion of the pair of long sides is constant regardless of the position in each region. It has become.

  Furthermore, in this embodiment, the reverse taper engaging part 14 of the both ends of each side of the container main body 3 and the lid 5 and the reverse taper engaging part 14 of the opening region 11 are integrally configured. In other words, at each of the four corners of the container main body 3 and the lid body 5, the reverse taper engaging portion 14 extending continuously from one long side end, the open region 11, and one short side end is continuously formed. Is formed. In addition, the cover reverse taper part 55 of the intermediate part of a pair of long sides is provided independently.

  Also in this embodiment, by providing the inverse taper engaging portions 14 intermittently at a plurality of positions including the open areas 11 at the four corners, it is possible to prevent the cover from being inadvertently opened, and the lid is opened when necessary. Easy packaging container 1 is realized.

[Other Embodiments]
(1) In the above embodiment, an example in which the sides of the rectangular container body 3 and the lid body 5 (main body side portion 3S, lid body side portion 5S) are formed in a straight line in a side view has been described. However, without being limited to such a configuration, for example, as shown in FIG. 13, each side of the container main body 3 and the lid body 5 has both end portions 3E and 5E positioned above the intermediate portions 3M and 5M. It may be formed as follows. For example, the intermediate portions 3M and 5M of each side of the container body 3 and the lid 5 are formed in a straight line shape in a side view and formed along the horizontal direction, and both end portions 3E and 5E of each side are the intermediate portions 3M and 5M. It may be formed so as to be inclined upward from the top. Each side of the container body 3 and the lid 5 may be bent as in the illustrated example, or may be formed in a curved shape although not shown. In these cases, the four corners of the rectangular container body 3 and the lid body 5 are disposed above the middle portions 3M and 5M of the respective sides.

  Thus, there are cases where the fitting strength can be adjusted by providing a height difference in the position where the reverse taper engagement portion 14 is disposed. For example, the formation rate of the reverse taper engagement portion 14 at both ends positioned relatively upward is larger than the formation rate of the reverse taper engagement portion 14 in the intermediate portions 3M and 5M positioned relatively below. There is. In this case, the both end portions of each side are more firmly fitted than the intermediate portions 3M and 5M based on the magnitude relationship of the formation ratio of the reverse taper engaging portion 14. By causing such a difference in fitting strength, it is possible to release the fitting state of the intermediate portions 3M and 5M together with only an external force necessary for releasing the fitting state of both ends. Become. That is, when the lid is opened, an extra force more than the force for releasing the fitting state of the reverse taper engaging portion 14 at the end of each of the sides of the lid region 11 and its both sides is almost unnecessary, and at the time of opening the lid. The troublesomeness of workability can be reduced.

(2) In the above embodiment, the configuration in which the reverse taper engagement portions 14 are provided at both ends of each side of the rectangular container body 3 and the lid 5 has been described as an example. However, the present invention is not limited to such a configuration. For example, the reverse taper engagement portions 14 may not be provided at both end portions of each side. In this case, each side of the container body 3 and the lid 5 is provided with the reverse taper engaging portion 14 only at the middle portion of the pair of long sides.

(3) In the above embodiment, an example in which the main body reverse tapered portion 35 is formed over the entire circumference of the container main body 3 has been described. However, the main body reverse tapered portion 35 may be intermittently formed on the outer periphery of the container main body 3 without being limited to such a configuration. The main body reverse taper portion 35 is preferably formed at a position corresponding to at least the lid reverse taper portion 55. In this case, the main body reverse taper portion 35 at both ends 3E of each side (main body side portion 3S) of the container main body 3 and the main body reverse taper portion 35 at the four corners (opening region 11) are formed independently of each other. It may be formed continuously or integrally.

(4) In the above-described embodiment, an example in which the partition wall 38 is formed in a substantially Y shape in a plan view in the container main body 3 has been described. However, the present invention is not limited to such a configuration, and for example, the partition wall 38 may be formed so as to be substantially T-shaped in a plan view. For example, in FIG. 14, a main wall portion 38A that connects two adjacent main body peripheral wall portions 32 and a branch wall portion 38B that branches from the main wall portion 38A and extends to the other main body peripheral wall portion 32 in a plan view. A partition wall 38 formed in a generally T shape is shown. In addition, for example, partition walls 38 having various shapes as shown in FIGS. 15 and 16 may be formed. As described above, the partition wall 38 may be formed so as to connect two opposing sides (a pair of long sides or a pair of short sides) of the rectangular container body 3, or two adjacent sides. It may be formed so as to connect (long side and short side). Further, the partition wall 38 may be formed so as to connect one side of the container body 3 and the other partition wall 38.

(5) In the above-described embodiment, the configuration in which all the four corners of the rectangular container body 3 and the lid body 5 are the open lid region 11 has been described as an example. However, the position where the open lid region 11 is provided is not necessarily limited to all four corners without being limited to such a configuration. That is, the open lid region 11 may be provided in at least one of the four corners of the rectangular container body 3 and the lid body 5. For example, the opening region 11 may be provided only in any one of the four corners, or the opening region 11 may be provided only in any two of the four corners (for example, two located diagonally). It may be provided.

(6) In the above embodiment, the configuration in which the container body 3 and the lid body 5 are formed in a rectangular shape in plan view has been described as an example. However, without being limited to such a configuration, for example, the container body 3 and the lid 5 may be formed in a square shape in plan view. Alternatively, the container body 3 and the lid body 5 may be formed in a polygonal shape in a plan view, or may be formed in a circular shape or an elliptical shape in a plan view.

(7) The configurations disclosed in each of the above-described embodiments (including the above-described embodiments and other embodiments; the same applies hereinafter) are applied in combination with the configurations disclosed in the other embodiments unless a contradiction arises. It is also possible to do. Regarding other configurations as well, the embodiments disclosed in the present specification are examples in all respects, and can be appropriately modified without departing from the gist of the present disclosure.

DESCRIPTION OF SYMBOLS 1 Packaging container 3 Container main body 3S Main body side part 3E Both-ends part 3M Middle part 5 Lid 5S Lid side part 5E Both-ends part 5M Middle part 11 Opening area | region 14 Reverse taper engaging part 31 Bottom part 32 Main body surrounding wall part 33 Main body Flange 35 Main body reverse taper 36 Main body knob 38 Partition wall 51 Top surface 52 Lid peripheral wall 53 Lid flange 55 Lid reverse taper 56 Lid knob

Claims (7)

A packaging container comprising a container body and a lid, formed by sheet molding,
The container body and the lid are formed in a rectangular shape in plan view,
The container main body includes a bottom surface portion, a main body peripheral wall portion extending upward from the bottom surface portion, a main body flange portion extending outward from the main body peripheral wall portion, and a main body reverse taper portion provided on the peripheral side of the main body flange portion. And a main body knob portion formed of a projecting piece protruding outward from the main body flange portion, and a partition wall that is formed so as to rise from the bottom surface portion and delimits a storage portion that stores an object to be stored. ,
The lid body is provided on the peripheral side of the top surface portion, the lid peripheral wall portion extending downward from the top surface portion, the lid flange portion extending outward from the lid peripheral wall portion, and the lid flange portion. A lid reverse taper portion that engages with the main body reverse taper portion, and a lid knob portion that is composed of a protruding piece that protrudes outward from the lid flange portion and is superimposed on the main body knob portion,
Each side of the rectangular container body and the lid is formed such that both ends are positioned above the middle part,
An open lid region where the main body knob and the lid knob are overlapped is provided at least one of the rectangular container body and the four corners of the lid,
The packaging container in which the reverse taper engagement part formed by the said main body reverse taper part and the said lid reverse taper part engaging is provided in the said open area | region.   The packaging container according to claim 1, wherein the partition wall is formed so as to connect two opposing sides of the container body having a rectangular shape.   The packaging container according to claim 1, wherein the partition wall is formed so as to connect two adjacent sides of the rectangular container body.   The packaging container according to any one of claims 1 to 3, wherein each side of the rectangular container body and the lid body is formed such that both end portions are positioned above the intermediate portion.   The packaging container according to any one of claims 1 to 4, wherein each side of the rectangular container body and the lid body is formed such that an intermediate portion is linear in a side view. The container body and the lid are formed in a rectangular shape in plan view,
The packaging container according to any one of claims 1 to 5, wherein the reverse taper engaging portion is also provided at an intermediate portion between the long sides of the rectangular container body and the lid.   The packaging container according to claim 6, wherein the reverse taper engaging portion is not provided in an intermediate portion of the rectangular side of the container main body and the lid.

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