JP6560784B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container provided with a container body and a lid.

  For example, in the following Patent Document 1 (Japanese Patent Application Laid-Open No. 2001-139045), a packaging container [10] including a container body [11] and a lid [12] fitted to the container body [11]. ] Is disclosed. 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 inner side of the container [10] as they go upward. The lid [12] and the container main body [11] are fitted by such a contact between the tapered lid inner fitting portion [16] and the main body inner fitting portion [15]. Is configured to do. As described above, in the packaging container having the tapered fitting portion, it is possible to realize a strong fitting between the lid and the container body. For example, the lid is not prepared when the packaging container is transported or displayed. It is possible to suppress the opening.

Japanese Patent Laid-Open No. 2001-139045

  However, the packaging container having the tapered fitting portion has a problem that the lid and the container main body can be firmly fitted, but it is difficult to open the lid when necessary.

  In view of the above situation, it is desired to realize a packaging container that can be prevented from being opened carelessly and that can be easily opened when necessary.

The packaging container according to the present disclosure is:
A packaging container comprising a container body and a lid, formed by sheet molding,
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,
Opening regions where the main body knob and the lid knob are overlapped are provided at a plurality of locations on the outer periphery of the container,
A reverse taper engagement portion formed by engaging the main body reverse taper portion and the lid reverse taper portion is provided over substantially the entire area in all the opening regions.

  According to this structure, a lid body and a container main body can be firmly fitted by engaging a main body reverse taper part and a cover body reverse taper part. Therefore, for example, it can be prevented that the lid is inadvertently opened when the packaging container is transported or displayed. In addition, since the lid gripping part is formed of a protruding piece that projects outward from the lid flange part, the lid is easily opened while the lid gripping part is gripped. Furthermore, since the lid picking portion is in a state of being superimposed on the main body picking portion, the lid picking portion can be prevented from being opened due to contact with something. And according to this structure, since the reverse taper engaging part is provided in all the opening area | regions in which a cover knob | pick part is arrange | positioned, in the said opening area | region, the strong fit of a cover body and a container main body is carried out. It is configured to easily open the lid when necessary while realizing the combination.

As one aspect,
It is preferable that the reverse taper engaging portion is provided intermittently in a region other than the open lid region on the outer periphery of the container.

  According to this structure, compared with the case where the reverse taper engagement part is provided in all the areas other than the lid opening area on the outer periphery of the container, the area occupied by the reverse taper engagement part in the container can be reduced, and the lid and It can suppress that a container main body fits more firmly than necessary. Further, compared to the case where the reverse taper engagement portion is not provided at all in the region other than the opening region, it is possible to prevent a gap from being generated between the lid and the container body in the region other than the opening region, A lid and a container main body can be fitted appropriately.

As one aspect,
The container body and the lid are formed in a rectangular shape in plan view,
It is preferable that four corners of the rectangular container main body and the lid body are used as the open lid region, and the reverse taper engaging portion is provided in substantially the entire area of the four corners.

  According to this configuration, the reverse taper engaging portions are provided at the four corners of the container, so that the entire lid body and the entire container body can be fitted in a balanced manner.

As one aspect,
It is preferable that the reverse taper engaging portion is provided independently at an intermediate portion between each side of the rectangular container body and the lid.

  According to this configuration, the fitting force between the lid body and the container body can be appropriately increased at each side, and the inadvertent opening is effectively suppressed without impairing the ease of opening when necessary. can do.

As one aspect,
It is preferable that the reverse taper engaging portions are further provided independently at both ends of each side of the rectangular container body and the lid.

  According to this configuration, the fitting force between the lid body and the container main body at each side can be further appropriately increased.

As one aspect,
The lid further has a skirt portion extending downward from the lid flange portion over the entire circumference,
The main body reverse taper portion is formed over the entire circumference, and linear protrusions that project inward from the skirt portion to form the lid reverse taper portion are formed over substantially the entire opening region. By being intermittently formed in a region other than the lid opening region, the reverse taper engaging portion is provided over substantially the entire area in all the lid opening regions, and in the region other than the lid opening region. It is preferable to be provided intermittently.

  According to this configuration, all the open regions and the lids are formed by the main body reverse taper portion formed over the entire circumference of the container main body and the lid reverse taper portion formed by the linear protrusions intermittently formed. In the intermittent region other than the region, the reverse taper engagement portion can be provided. And in order to implement | achieve the structure in which the reverse taper engagement part was intermittently provided in this way, what is necessary is just to form over the perimeter about a main body reverse taper part, and it is intermittent about a cover body taper part. What is necessary is just to form so that it may protrude inward from a skirt part in an area | region. Therefore, a packaging container that is easy to manufacture can be realized.

As one aspect,
It is preferable that the container main body further includes a partition wall that is formed so as to rise from the bottom surface portion and that partitions a storage portion that stores an object to be stored.

  According to this configuration, for example, different types of food can be partitioned and stored by the partition walls. And since the packaging container of this structure is comprised so that it may open easily and it can open smoothly when needed, it can suppress the impact at the time of opening. Therefore, it can suppress that the foodstuff inside a container mixes with the other kind of foodstuff stored in the other accommodating part by the impact at the time of a lid opening.

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

Exploded front view of packaging container Exploded 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. Schematic plan view of a container body according to another embodiment Schematic plan view of a container body according to another embodiment Schematic plan view of a container body according to another embodiment

  A packaging container according to this embodiment will be described with reference to the drawings. The packaging container 1 is formed by sheet molding, and includes a container body 3 and a lid body 5 as shown in FIGS.

  The packaging container 1 accommodates an object to be accommodated such as food (for example, cooking). In the following, the inner side of the packaging container 1, that is, the direction from the outer edge side to the center side is referred to as “inward” or “inner side”. Then, the outer side of the packaging container 1, that is, the direction from the center side to the outer edge side will be described as “outward” or “outer side”.

  As shown in FIG. 3, in this embodiment, the container main body 3 and the lid 5 are formed in a rectangular shape in plan view. In the illustrated example, the container main body 3 and the lid 5 are formed in a rectangular shape in plan view, and each have a pair of short sides and a pair of long sides. However, without being limited to such a configuration, the container body 3 and the lid 5 may be formed in a square shape in plan view. Furthermore, it may be formed in a polygonal shape in plan view, or may be formed in a circular shape or an elliptical shape.

  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, a main body flange portion 33 extending outward from the main body peripheral wall portion 32, and a main body flange. The main body reverse taper part 35 provided in the peripheral side (outer side) rather than the part 33, and the main body knob part 36 which consists of a protrusion piece which protrudes outside the main body flange part 33 are provided.

  The container body 3 has four body side parts 3S. And the main body surrounding wall part 32 is formed in each of the four main body side parts 3S. Each of the four main body peripheral wall portions 32 is formed to be inclined outward as it goes upward. Further, the main body flange portion 33 extends outward from the upper end of the main body peripheral wall portion 32 along the horizontal direction.

  As shown in FIGS. 4 and 5 to 7, in the present embodiment, 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 so as to incline outward toward the lower side 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. In the present embodiment, the main body reverse tapered portion 35 is formed continuously to the main body bulging portion 34A below the main body bulging portion 34A. The main body reverse taper portion 35 is formed so as to be inclined inward as it goes downward. As shown in FIG. 4, 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, in the present embodiment, the main body knob 36 is provided at the four corners of the rectangular container main body 3 and has a generally triangular shape in plan view. In other words, the main body knob 36 constitutes a corner of the rectangular container main body 3. In the example shown in FIG. 5, the main body knob 36 extends outward from the lower end of the main body skirt 34 along the horizontal direction. In the present embodiment, the main body knob portion 36 includes a main body knob surface portion 36A formed in a planar shape and an upper protrusion portion 36B protruding upward from the main body knob surface portion 36A.

  As shown in FIG. 4, in the present embodiment, 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 illustrated example, 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 that branches from the main wall portion 38A and extends to one of the pair of main body peripheral wall portions 32. 38B. 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.

  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 A lid reverse taper portion 55 provided on the peripheral side of the body flange portion 53 and engaged with the main body reverse taper portion 35 and a protruding piece projecting outward from the lid flange portion 53 are overlapped with the main body knob portion 36. And a lid picking portion 56 to be operated.

  The lid 5 has four lid sides 5S. The lid peripheral wall portion 52 is continuously formed on 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, the lid body 5 further includes a lid skirt portion 54 (corresponding to a skirt portion) 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, in the present embodiment, a linear protrusion that protrudes inward from the lid skirt portion 54 (specifically, the hanging portion 54 </ b> C) and becomes the lid inversely tapered portion 55 is formed. 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, and the lid reverse taper portion 55 and The linear protrusion 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 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 is provided at the four corners of the rectangular lid 5. Moreover, in this embodiment, the cover body reverse taper part 55 is provided independently also in the intermediate part 5M of each cover body side part 5S. In addition, in the illustrated example, the lid reverse tapered portion 55 is also provided independently at both end portions 5E of each lid side portion 5S.

  As shown in FIGS. 3, 5, and 6, a peripheral wall recess 52 </ b> A that is recessed inward is provided at a position corresponding to the cover reverse taper portion 55 in the cover peripheral wall portion 52. The peripheral wall recess 52A extends in the vertical direction. In the present embodiment, the peripheral wall recess 52 </ b> A is formed over the entire area in the vertical direction of the lid peripheral wall 52. The strength of the lid peripheral wall 52 can be improved by the peripheral wall recess 52A, and the lid 5 can be prevented from being bent by an external force.

  In the present embodiment, the lid knob 56 is provided at the four corners of the rectangular lid 5, and is formed in a generally triangular shape in plan view. In other words, the lid picking part 56 constitutes a corner of the rectangular lid 5. In the example illustrated in FIG. 5, the lid knob 56 extends outward from the lower end of the lid skirt 54 along the horizontal direction. In the present embodiment, the lid picking portion 56 includes a lid picking surface portion 56A formed in a planar shape, and a lower protrusion 56B protruding downward from the lid picking surface portion 56A.

  As shown in FIG. 3, open lid regions 11 (see also FIG. 5) serving as a starting point when removing the lid 5 from the container body 3 are provided at a plurality of locations on the outer periphery of the container. The 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 36B of the main knob 36 and the lower protrusion 56B 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.

  As shown in FIG. 3, the reverse taper engagement portion 14 formed by engaging the main body reverse taper portion 35 and the lid reverse taper portion 55 is provided over substantially the entire area in all the open region 11. ing. 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. Therefore, the reverse taper engagement portion 14 is also inclined inward as it goes downward. In the example shown in FIGS. 5 and 6, the reverse taper engaging portion 14 is inclined such that the angle formed with the vertical line is θ. “Θ” is preferably, for example, 30 ° to 90 °. With the above configuration, the lid body 5 is configured so as not to easily come off from the container body 3 in a state where no external force is applied.

  Further, when the lid 5 is fitted to the container main body 3, it is necessary to push the lid reverse tapered portion 55 into the main body bulging portion 34A from the top to the bottom (see FIGS. 5 and 6). The body 5 is required to have enough strength to withstand pushing. As described above, in the present embodiment, the peripheral wall recess 52A is provided at a position corresponding to the cover body reverse taper portion 55 in the cover body peripheral wall portion 52 (a position corresponding to the reverse taper engagement portion 14) ( 3, 5 and 6), the lid peripheral wall portion 52, and consequently the strength of the lid 5 is improved. For this reason, the lid 5 is configured not to bend easily by being pushed in during fitting.

  In the present embodiment, the four corners of the rectangular container body 3 and the lid body 5 (packaging container 1) are open lid regions 11, and the reverse taper engaging portions 14 are provided in substantially the entire four corners. 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 open regions 11 at the four corners, it is possible to increase the strength against pressing during fitting.

  In the example shown in FIG. 3, the reverse taper engaging part 14 is provided in addition to the four corners of the rectangular container body 3 and the lid 5 (packaging container 1). In other words, the reverse taper engaging portion 14 is also provided in a region other than the open lid region 11 on the outer periphery of the container. In the region other than the open lid region 11 on the outer periphery of the container, the reverse taper engaging portion 14 is provided intermittently rather than over the entire region. In the present embodiment, the main body reverse tapered portion 35 is formed over the entire circumference of the container main body 3, and the linear protrusion that protrudes inward from the lid skirt portion 54 and becomes the lid reverse tapered portion 55 is opened. By being intermittently formed in a region other than the opening region 11 while being formed in substantially the entire region of the lid region 11, the reverse taper engagement portions 14 are provided over substantially the entire region in all the opening regions 11. And it is provided intermittently in a region other than the lid opening region 11.

  In the example shown in FIG. 3, the reverse taper engaging part 14 is independently provided in the intermediate part 1M of each side of the rectangular container main body 3 and the cover body 5 (packaging container 1). In addition to this, in the present embodiment, the reverse taper engaging portion 14 is further provided independently at both ends 1E of each side of the rectangular container body 3 and the lid 5 (packaging container 1). Yes. As shown in FIG. 3, the reverse taper engaging part 14 is provided in the rectangular container main body 3 and the cover 5 (packaging container 1) at three corners and three each side.

  According to the packaging container 1 described above, the lid body 5 and the container body 3 are firmly fitted in the lid opening region 11 by the reverse taper engaging portion 14 provided over substantially the entire area of each lid opening region 11. it can. On the other hand, the reverse taper engaging portion 14 is intermittently provided in a region other than the open lid region 11, so that the lid 5 and the container body 3 are excessively strong when viewed as a whole of the packaging container 1. The fitting can be avoided. Therefore, it is possible to prevent the lid from being inadvertently opened, and to easily open the lid when necessary. Further, the reverse taper engagement portion 14 is provided over the substantially entire area in the lid opening region 11 and the fitting force is very high. However, in the lid opening region 11, the lid opening operation force is applied to the lid gripping portion 56. Since it can be made to act directly, it is possible to easily start releasing the mating. 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 inadvertently opened and can be easily opened when necessary.

[Other Embodiments]
(1) In the above embodiment, the example in which the partition wall 38 is formed in the container body 3 so as to be substantially Y-shaped in plan view has been described. However, the present invention is not limited to such an example. For example, the partition wall 38 may be formed so as to be substantially T-shaped in a plan view. For example, in FIG. 8, a main wall portion 38A that connects two adjacent main body peripheral wall portions 32 to each other 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. 9 and 10 may be formed.

(2) In the above embodiment, the example in which the main body reverse taper portion 35 is formed over the entire circumference of the container main body 3 has been described. However, the present invention is not limited to such an example. The main body reverse taper portion 35 may be formed intermittently on the outer periphery of the container main body 3. In this case, the main body reverse taper portion 35 is preferably formed at least at a position corresponding to the lid reverse taper portion 55.

(3) In the above embodiment, an example in which all four corners of the rectangular container body 3 and the lid body 5 (packaging container 1) are the open area 11 has been described, but the open area 11 is provided. The positions to be placed are not necessarily all four corners.

(4) In said embodiment, the reverse taper engaging part 14 is provided in the intermediate part 1M and the both ends 1E in each side of the rectangular container main body 3 and the cover body 5 (packaging container 1). An example was described. However, the present invention is not limited to such an example. The reverse taper engagement portion 14 may be provided only at the intermediate portion 1M of each side of the rectangular container body 3 and the lid 5 (packaging container 1), or only at both end portions 1E thereof. It may be provided. In the former case, a plurality of reverse tapered engagement portions 14 that are independent from each other may be provided in the intermediate portion 1M of each side.

(5) In the above embodiment, as shown in FIGS. 1 and 2, an example in which each side of the rectangular container body 3 and the lid 5 (packaging container 1) is formed along the horizontal direction will be described. did. However, the present invention is not limited to such an example. Each side of the rectangular container body 3 and the lid 5 (packaging container 1) may be formed such that both end portions 1E are curved upward. In this case, the open lid regions 11 at the four corners of the rectangular container body 3 and the lid body 5 (packaging container 1) are arranged above the middle portion 1M of each side. In this case, the reverse taper engaging portion 14 (the cover reverse taper portion 55) is formed on the curved portion (both ends 1E) on each side of the rectangular container body 3 and the cover body 5 (packaging container 1). For example, it is preferable that the reverse taper engaging portion 14 (the cover reverse taper portion 55) is provided only in the intermediate portion 1M on each side. Thereby, since the reverse taper engagement part 14 is arrange | positioned in the intermediate part 1M which is not curved, the stable fitting with the cover body 5 and the container main body 3 is realizable.
Postscript

(6) It should be noted that the configurations disclosed in the above-described embodiments can be applied in combination with the configurations disclosed in other embodiments as long as no contradiction arises. Regarding other configurations, the embodiments disclosed herein are merely examples in all respects. Accordingly, various modifications can be made as appropriate without departing from the spirit of the present disclosure.

  The technology according to the present disclosure can be used for a packaging container including a container body and a lid.

1: Container 1E for packaging: Both ends 1M: Intermediate part 3: Container body 3S: Body side 5: Lid 5E: Both ends 5M: Intermediate 5S: Lid side 11: Opening region 14: Reverse taper Joint part 31: bottom part
32: Main body peripheral wall portion 33: Main body flange portion 34: Main body skirt portion 35: Main body reverse taper portion 36: Main body knob portion 37: Accommodating portion 38: Partition wall 51: Top surface portion 52: Lid peripheral wall portion 53: Lid flange portion 54: Lid skirt part (skirt part)
55: Lid reverse taper part 56: Lid knob part

Claims (2)

A packaging container comprising a container body and a lid, formed by sheet molding,
The container body and the lid has a curved portion presenting a curved shape in a plan view in its corners with 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,
Each side of the rectangular container body and the lid is formed such that the middle part is formed in a straight line in a side view and both end parts are curved upward.
At the position where the open lid region where the main body knob and the lid knob are overlapped is above the intermediate portion , at least one of the four corners of the rectangular container body and the lid Provided,
A reverse taper engagement portion formed by engaging the main body reverse taper portion and the lid reverse taper portion is provided over substantially the entire area in all the open region, and a partial region. Is not provided ,
The partial area where the reverse taper engaging portion is not provided in the open area is at a position corresponding to the curved part,
Further, the reverse taper engaging portion is provided at the intermediate portion of each side of at least one of the rectangular container body and the lid body, while at least the other of the rectangular container body and the lid body. A packaging container provided at both ends without being provided at the intermediate portion of any one of the sides . 2. The packaging container according to claim 1 , wherein the container body further includes a partition wall that is formed to rise from the bottom surface portion and that partitions a storage portion that stores an object to be stored.

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