Packaging containers

Abstract

To provide a packaging container that can definitely prevent an inner container from whirling.SOLUTION: In a packaging container 400 which contains an inner container 200, in which a partition 230 for partitioning a space for containing contents is formed in a circular container body 300, is provided with a whirl-stop protrusion 360 which is at a position away from the center of the bottom surface 310 of the circular container body 300, projects from the bottom surface 310 and abuts the back surface 234 side of the partition 230 of the inner container 200 to prevent the inner container 200 from whirling.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a packaging container comprising a container body and an inner container. [Background technology]

[0002] Conventionally, packaging containers in which an inner container containing food or the like is housed in a container body have been known, and these packaging containers are sold in stores with a lid on and a strip label wrapped around them. However, there has been a problem in that if the position of the inner container shifts when the inner container is housed in the container body or when the strip label is wrapped around it, the food or the like housed in the inner container may be hidden by the strip label, which may make the contents look unattractive.

[0003] For example, the packaging container of Patent Document 1 includes a circular container body and an inner container that is accommodated in the container body, and the inner container is fastened to a protruding locking portion provided on the opening edge of the container body. The orientation of the inner container is fixed by engaging a concave engaged portion provided on the flange. The packaging container of Patent Document 2 includes a circular container body and an inner container stored in the container body, and the inner container is positioned by fitting a concave engagement portion of the inner container into a substantially cylindrical engagement portion provided in the center of the bottom surface of the container body.

[0004] However, in the packaging container of Patent Document 1, the locking portion is provided on the opening edge of the container body, and the locked portion is provided on the outer peripheral edge of the flange that extends horizontally of the inner container, so when the inner container is actually rotated on a horizontal plane, the locked portion of the inner container easily overcomes the locking portion of the container body and comes off, so it is not possible to reliably prevent the inner container from rotating. Furthermore, in the packaging container of Patent Document 2, although the inner container can be positioned so as not to shift within the container body, the engagement portion is located at the center of the bottom surface of the inner container and is cylindrical, so the inner container rotates around the center of the bottom surface, so it is not possible to reliably prevent the inner container from rotating. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility model registration No. 3212312 [Patent Document 2] Actual publication Showa 58-36275 Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above problems, the present invention provides a packaging container that can reliably prevent the inner container from rotating. [Means for solving the problem]

[0007] In order to solve the above problems, the packaging container according to claim 1 of the present invention has a circular container body with a partition formed therein to divide a space for accommodating contents. Circular shape The packaging container for storing an inner container is characterized in that it is provided with an anti-rotation protrusion that protrudes from the bottom surface of the circular container body at a position away from the center of the bottom surface and abuts against the back side of the partition of the inner container to prevent the inner container from rotating, and a locking portion on the outer edge side of the inner container is placed on part of the side wall of the container body, so that the inner container is stored in a state where part of the bottom wall is floating above the bottom surface of the container body.

[0008] According to the above feature, even if the inner container tries to rotate on a horizontal plane inside the circular container body, the anti-rotation protrusion provided at a position away from the center of the bottom surface abuts against the back side of the partition of the inner container, so that the inner container can be reliably prevented from rotating. Furthermore, since the anti-rotation protrusion is formed to protrude from the bottom surface, even if the inner container tries to rotate on a horizontal plane inside the container body, the partition is unlikely to overcome the anti-rotation protrusion, so that the inner container can be reliably prevented from rotating.

[0009] Furthermore, the packaging container according to claim 2 of the present invention has a partition formed on a circular container body to divide a space for accommodating contents. Circular shapeThe packaging container for storing an inner container is provided with an anti-rotation protrusion at the center of the bottom surface of the circular container body, which protrudes from the bottom surface and abuts against the back side of the partition of the inner container to prevent the inner container from rotating, and the anti-rotation protrusion has a shape with two parts that are different distances from the center of the bottom surface of the container body, and a locking portion on the outer edge side of the inner container is placed on part of the side wall of the container body, so that the inner container is stored in a state where part of the bottom wall is floating above the bottom surface of the container body.

[0010] According to the above features, the anti-rotation protrusion is provided at the center of the bottom surface of the container body and has a shape with two parts at different distances from the center, so that even if the inner container tries to rotate around the center of the bottom surface in a horizontal plane, one of the two parts at different distances from the center will abut against the back side of the partition of the inner container, reliably preventing the inner container from rotating. Furthermore, because the anti-rotation protrusion is formed to protrude from the bottom surface, even if the inner container tries to rotate in a horizontal plane within the container body, the partition is unlikely to overcome the anti-rotation protrusion, reliably preventing the inner container from rotating.

[0011] Furthermore, the packaging container according to claim 3 of the present invention is characterized in that two or more of the anti-rotation projections are provided.

[0012] According to the above feature, it is possible to more reliably prevent the inner container from rotating.

[0013] Furthermore, in a packaging container according to claim 4 of the present invention, the anti-rotation protrusion extends in a radial direction of the container body in a plan view.

[0014] According to the above feature, since the anti-rotation protrusion extends in the radial direction of the container body, the anti-rotation protrusion extends in a direction intersecting the circumferential direction of the container body. Therefore, even if the inner container tries to rotate on a horizontal plane within the circular container body, that is, the inner container tries to rotate along the circumferential direction of the container body, the anti-rotation protrusion extending in a direction intersecting the rotation direction can more reliably prevent the inner container from rotating.

[0015] Furthermore, the packaging container according to claim 5 of the present invention is characterized in that the anti-rotation protrusion has a width that increases from the tip to the end in accordance with the shape of the recessed portion on the back side of the partition.

[0016] According to the above feature, the anti-rotation protrusion can be reliably brought into contact with the rear surface of the partition with as little gap as possible, so that the inner container can be more reliably prevented from rotating.

[0017] Furthermore, the packaging container according to claim 6 of the present invention is characterized in that the angle between the surface of the tip of the anti-rotation protrusion and the inclined surface extending downward from the tip is an obtuse angle greater than 90 degrees.

[0018] According to the above feature, when the anti-rotation protrusion is fitted onto the back surface of the partition of the inner container, even if the upper and lower positions of the partition and the anti-rotation protrusion are slightly misaligned, the back surface of the partition abuts against the gentle tip with an obtuse angle and is guided to smoothly slide so that the upper and lower positions match.

[0019] Furthermore, the packaging container according to claim 7 of the present invention is characterized in that a plurality of legs are provided on the bottom surface of the container body, and the anti-rotation protrusion is formed between the legs on the bottom surface.

[0020] According to the above features, when a strip-shaped label is placed between the legs and wrapped around the packaging container, the strip-shaped label is wrapped so that it overlaps the partition located between the legs, so that the contents, such as food, contained in the space partitioned by the partition are as far as possible not obscured by the strip-shaped label, improving the appearance of the product. Effect of the Invention

[0021] As described above, the packaging container of the present invention can reliably prevent the inner container from rotating. [Brief description of the drawings]

[0022] [Figure 1] 1A and 1B show a lid to be attached to a packaging container according to a first embodiment of the present invention, where (a) is a plan view of the lid, and (b) is a side view of the lid. [Diagram 2] 1 shows an inner container of a packaging container according to a first embodiment of the present invention, where (a) is a plan view of the inner container, (b) is a side view of the inner container, and (c) is an AA end view. [Diagram 3] 1 shows a container body of a packaging container according to a first embodiment of the present invention, where (a) is a plan view of the container body, (b) is a side view of the container body, (c) is a cross-sectional view along line BB, and (d) is a cross-sectional view along line CC. [Figure 4] FIG. 1(a) is a plan view showing a state in which an inner container is accommodated in a container body of a packaging container according to a first embodiment of the present invention, and FIG. [Diagram 5] FIG. 1(a) is a plan view of a container body of a packaging container according to a second embodiment of the present invention, and FIG. [Figure 6] FIG. 10(a) is a plan view showing a state in which an inner container is accommodated in a container body of a packaging container according to a second embodiment of the present invention, and (b) is an FF end view. [Explanation of symbols]

[0023] 200 Medium Container 230 Partition 234 Back side 300 Container body 310 Bottom 360 Anti-rotation protrusion 400 Packaging containers DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Each embodiment of the present invention will be described below with reference to the drawings. In this specification, "upper" refers to the upward direction in the vertical direction when the container body of the packaging container is placed on a horizontal surface with the opening side facing up, "lower" refers to the downward direction in the vertical direction, "horizontal" refers to the horizontal direction, and "vertical" refers to the direction perpendicular to "horizontal" on the horizontal surface.

[0025] <Embodiment 1> 1 shows a lid 100 to be attached to a packaging container 400 according to the first embodiment of the present invention. Fig. 1(a) is a plan view of the lid 100, and Fig. 1(b) is a side view of the lid 100.

[0026] As shown in FIG. 1, the lid body 100 is a shallow dish type that opens downward and has a circular shape in a plan view, and includes a flat top plate 110, a side wall 120 that continues downward from an edge portion 111 of the top plate 110, and a flange portion 130 that extends horizontally from the lower end of the side wall 120. A flat surface 121 for attaching a product display sticker or the like is provided on a part of the side wall 120, and the part of the side wall 120 other than the flat surface 121 is smoothly curved so as to surround the periphery of the top plate 110. Furthermore, a concave lid side fitting portion 140 that continues downward from the flange portion 130 is provided on the outer side of the flange portion 130. The side wall 120, the flange portion 130, and the lid side fitting portion 140 are provided continuously around the entire circumference of the lid body 100 in the circumferential direction.

[0027] Next, Fig. 2 shows the inner container 200 of the packaging container 400 according to the first embodiment of the present invention. Fig. 2(a) is a plan view of the inner container 200, Fig. 2(b) is a side view of the inner container 200, and Fig. 2(c) is an AA end view.

[0028] 2, inner container 200 is a shallow dish-type container that opens upward and has a circular shape in a plan view, and is provided with a flat bottom wall 210, a side wall 220 that continues and rises upward from the edge of bottom wall 210, and a partition 230 that divides the space for accommodating food. Furthermore, a flange portion 240 is provided extending in a substantially horizontal direction from the upper end of side wall 220, and a locking portion 241 is formed extending downward from the edge of flange portion 240, and locking portion 241 is placed on a step portion 331 of container body 300, which will be described later. Side wall 220, flange The locking portion 240 and the locking portion 241 are provided continuously or intermittently around the entire circumference of the inner container 200 in the circumferential direction.

[0029] As shown in FIG. 2, the partition 230 is formed in a convex shape so as to bulge upward from the bottom wall 210, and divides the space on the bottom wall 210 for accommodating food and the like. Specifically, the partition 230, which is substantially Y-shaped in plan view, divides the space on the bottom wall 210 into spaces X1, X2, and X3. The partition 230 also extends in a direction intersecting the circumferential direction of the container body 300, which will be described later. Furthermore, as shown in FIG. 2(c), the vertical cross-sectional shape of the partition 230 perpendicular to the longitudinal direction is a divergent shape that gradually becomes wider from the leading end 231 to the trailing end 232. Furthermore, by forming the partition 230 in such a divergent shape, an undercut portion is not formed when the inner container 200 is sheet-formed. Furthermore, since the partition 230 is formed in an upward convex shape, the back surface 234 side of the partition 230 is upwardly concave. A rotation-preventing protrusion 360 (described later) fits into the recessed portion on the rear side of this partition 230.

[0030] In Fig. 2, the partition 230 is substantially Y-shaped in plan view, but is not limited thereto, and may be any shape as long as it can divide the space for accommodating the contents. In addition, the partition 230 has a shape that gradually widens from the tip 231 to the end 232, but is not limited thereto, and may be any shape as long as it protrudes from the bottom wall 210 so as to divide the space for accommodating the contents and can abut a rotation prevention protrusion 360 (described later) on a part of the back side. In addition, in Fig. 2, the inner container 200 is circular, but is not limited thereto, and may be any shape such as a semicircular shape or a crescent shape as long as it can be stored inside the circular container body 300.

[0031] Next, Fig. 3 shows a container body 300 according to the first embodiment of the present invention. Fig. 3(a) is a plan view of the container body 300, Fig. 3(b) is a side view of the container body 300, Fig. 3(c) is a cross-sectional view taken along line BB, and Fig. 3(d) is a cross-sectional view taken along line CC.

[0032] 3, the container body 300 is a shallow dish type that opens upward and has a circular shape in a plan view, and includes a flat bottom surface 310, legs 320 that bulge downward at the outer periphery of the bottom surface 310, a side wall 330 that continues to rise upward from the edge of the bottom surface 310, and a flange portion 340 that extends in a substantially horizontal direction from the upper end of the side wall 330. Furthermore, a convex container side fitting portion 350 is provided that continues downward from the flange portion 340. The side wall 330, the flange portion 340, and the container side fitting portion 350 are provided continuously around the entire circumference of the container body 300 in the circumferential direction.

[0033] Moreover, a step 331 is formed on the upper end side of the side wall 330, so that the locking portion 241 of the inner container 200 can be placed thereon. Furthermore, two anti-rotation protrusions 360 are formed on the bottom surface 310 so as to protrude upward from the bottom surface 310, and each anti-rotation protrusion 360 is provided at a position away from the center O of the container body 300 (in other words, the anti-rotation protrusions 360 are provided at a position offset from the center O). Furthermore, each anti-rotation protrusion 360 extends in the radial direction of the container body 300 in a plan view, so that the longitudinal width L1 is longer than the lateral width L2.

[0034] 3(c), the cross-sectional shape of anti-rotation protrusion 360 perpendicular to the longitudinal direction is a divergent shape that gradually widens from tip 361 to end 362. The cross-sectional shape of anti-rotation protrusion 360 corresponds to the cross-sectional shape of partition 230 perpendicular to the longitudinal direction shown in FIG. 2(c). Therefore, as described later, anti-rotation protrusion 360 can smoothly fit into the recessed portion of partition 230 and abut against the rear surface side of partition 230.

[0035] 3(c), tip 361 of anti-rotation protrusion 360 has an obtuse angle. More specifically, the angle α between the surface of tip 361 of anti-rotation protrusion 360 and inclined surface 363 extending downward from tip 361 is an obtuse angle greater than 90 degrees.

[0036] As shown in FIG. 3(a), four legs 320 are provided on the bottom surface 310 of the container body 300 at equal intervals in the circumferential direction of the container body 300. The anti-rotation protrusions 360 are located between the legs 320. The spaces between the legs 320 are used as areas for wrapping strip-shaped labels around the legs as described below, and arrows are provided around the center O as markers for indicating these areas. Although the four legs 320 are provided at equal intervals in the circumferential direction, the present invention is not limited to this, and two or more legs 320 may be provided at any positions on the bottom surface 310.

[0037] Although the anti-rotation protrusion 360 has a substantially rectangular columnar shape, the shape is not limited thereto and may be any shape, such as a cylinder, as long as it is provided at a position away from the center O of the bottom surface 310. Furthermore, although two anti-rotation protrusions 360 are provided, the shape is not limited thereto and only one anti-rotation protrusion 360 may be provided, or three or more anti-rotation protrusions 360 may be provided.

[0038] The lid body 100, inner container 200, and container body 300 in this embodiment 1 are formed by sheet molding (e.g., vacuum forming, compressed air forming, hot plate forming) using sheet-like material with a thickness of approximately 0.1 mm to 1.00 mm. For example, the lid body 100 and inner container 200 can be made of polystyrene, polypropylene, polystyrene, A-PET, polylactic acid, or biaxially stretched versions of these, while the container body 300 can be made of polystyrene, polypropylene, polystyrene, A-PET, polylactic acid, or foamed versions of these or versions mixed with talc.

[0039] Next, a packaging container 400 according to a first embodiment of the present invention will be described with reference to Fig. 4. Fig. 4(a) is a plan view showing the inner container 200 housed in the container body 300, and Fig. 4(b) is a DD end view. This packaging container 400 is composed of two members, the inner container 200 and the container body 300, and has a lid 100 attached as described below, although the lid 100 is not an essential component.

[0040] 4, the contents, such as food, are placed in the space partitioned by partition 230, and inner container 200 is placed inside the opening of container body 300. Specifically, the orientation of inner container 200 is adjusted and inner container 200 is placed inside the opening of container body 300 so that anti-rotation protrusion 360 of container body 300 fits into a recessed portion of rear surface 234 of partition 230 of inner container 200. In addition, since locking portion 241 of inner container 200 is placed on step portion 331 of side wall 330 of container body 300, inner container 200 is stably placed inside container body 300 without tilting.

[0041] Thereafter, the lid 100 (not shown) is placed over the packaging container 400, and the lid-side fitting portion 140 of the lid 100 is externally fitted into the container-side fitting portion 350 of the container body 300. Furthermore, a strip-shaped label (not shown) is placed between the legs 320 and wrapped around the lid 100 and the packaging container 400, thereby firmly maintaining the packaging container 400 and the lid 100 in a sealed state.

[0042] Here, according to the packaging container 400 of embodiment 1 of the present invention, even if the inner container 200 attempts to rotate on a horizontal plane within the circular container body 300 (see the arrow in Figure 4(a)), the anti-rotation protrusion 360 located at a position away from the center O of the bottom surface 310 abuts against the back side of the partition 230 of the inner container 200, so that the inner container 200 can be reliably prevented from rotating.

[0043] Furthermore, since the partition 230 extends in a direction intersecting the circumferential direction of the container body 300, the anti-rotation protrusion 360 provided at a position away from the center O of the bottom surface 310 abuts against the partition 230, thereby reliably preventing the inner container 200 from rotating even if the inner container 200 attempts to rotate in the circumferential direction of the container body 300 (see the arrow in Figure 4(a)).

[0044] Furthermore, because anti-rotation protrusions 360 are formed to protrude from bottom surface 310, even if inner container 200 attempts to rotate on a horizontal plane within container body 300, partition 230 is unlikely to climb over anti-rotation protrusions 360, and rotation of inner container 200 can be reliably prevented. Also, rear surface 234 side of partition 230 has not been effectively utilized until now because it is difficult to store food thereon, but this is effectively utilized as a point against which anti-rotation protrusions 360 abut, and furthermore, by utilizing rear surface 234 side of partition 230, there is no need to provide a separate structure for abutting anti-rotation protrusions 360, thereby reducing manufacturing costs.

[0045] Furthermore, according to the packaging container 400 of the first embodiment of the present invention, the anti-rotation protrusion 360 extends in the radial direction of the container body 300, so that the inner container 200 can be reliably prevented from rotating. To explain in detail, since the anti-rotation protrusion 360 extends in the radial direction of the container body 300, the anti-rotation protrusion 360 extends in a direction intersecting the circumferential direction of the container body 300. Therefore, even if the inner container 200 tries to rotate on a horizontal plane within the circular container body 300, that is, even if the inner container 200 tries to rotate along the circumferential direction of the container body 300, the anti-rotation protrusion 360 extending in a direction intersecting the rotation direction can more reliably prevent the inner container 200 from rotating.

[0046] 4, anti-rotation protrusion 360 extends in the radial direction of container body 300, but the present invention is not limited thereto, and it is sufficient that anti-rotation protrusion 360 extends toward the outer circumferential portion of container body 300. If anti-rotation protrusion 360 extends toward the outer circumferential portion of container body 300, anti-rotation protrusion 360 extends in a direction intersecting with the circumferential direction of container body 300, and therefore anti-rotation protrusion 360 extending in a direction intersecting with the rotation direction of inner container 200 can more reliably prevent rotation of inner container 200.

[0047] Furthermore, according to the packaging container 400 of embodiment 1 of the present invention, as shown in FIG. 4(b), the anti-rotation protrusion 360 has a shape that widens from the tip 361 to the end 362 to match the shape of the recessed portion on the back surface 234 of the partition 230. Therefore, the anti-rotation protrusion 360 can securely abut against the back surface 234 of the partition 230 with as little gap as possible, thereby more reliably preventing the inner container 200 from rotating.

[0048] Furthermore, according to the packaging container 400 of embodiment 1 of the present invention, as shown in Figures 3(c) and 4(b), the tip 361 of the anti-rotation protrusion 360 has an obtuse angle. Therefore, when the anti-rotation protrusion 360 is fitted into the back surface 234 of the partition 230 of the inner container 200, even if the upper and lower positions of the partition 230 and the anti-rotation protrusion 360 are slightly misaligned, the back surface 234 of the partition 230 abuts against the gentle tip 361 with an obtuse angle and is guided to smoothly slide so that the upper and lower positions match.

[0049] Furthermore, according to the packaging container 400 of the first embodiment of the present invention, since two or more anti-rotation projections 360 are provided, the inner container 200 can be more reliably prevented from rotating.

[0050] Furthermore, according to the packaging container 400 of the first embodiment of the present invention, the bottom surface 310 of the container body 300 is provided with a plurality of legs 320, and the anti-rotation projections 360 are formed between the legs 320, so that the partitions 230 of the inner container 200 that come into contact with the anti-rotation projections 360 are also positioned between the legs 320, as shown in Fig. 4(a). When the packaging container 400 is sold at a store or the like, the lid body 100 is attached from above the packaging container 400, and the partitions 230 are positioned between the legs 320. A strip-shaped label (not shown) is applied and wrapped around the lid 100 and the packaging container 400, and this strip-shaped label is wrapped so as to overlap the partition 230 located between the legs 320. This makes it possible to minimize the obscuration of the contents, such as food, contained in the space partitioned by the partition 230 by the strip-shaped label, improving the appearance of the product. Note that, since the legs 320 are formed to bulge downward from the bottom surface 310 of the container body 300, the strip-shaped label is wrapped around the legs 320 to pass between them.

[0051] <Embodiment 2> Next, a packaging container 400A according to embodiment 2 of the present invention will be described. The configuration of the packaging container 400A according to embodiment 2 is the same as that of the packaging container 400 according to embodiment 1 shown in FIG. 4 except for the configuration of the anti-rotation protrusion 360A. Therefore, detailed description of the same configuration as that of the packaging container 400 according to embodiment 1 will be omitted. Note that FIG. 5(a) is a plan view of the container body 300A of the packaging container 400A according to embodiment 2, and FIG. 5(b) is an E-E cross-sectional view. FIG. 6(a) is a plan view showing a state in which the inner container 200 is accommodated in the container body 300A, and FIG. 6(b) is an FF end view.

[0052] As shown in FIG. 5(a), the anti-rotation protrusion 360A is formed at the center O of the container body 300A so as to protrude upward from the bottom surface 310A. This anti-rotation protrusion 360A has a substantially quadrangular prism shape, and its cross section (cross section along the horizontal direction) is substantially rectangular. Therefore, the anti-rotation protrusion 360A has a short side portion 364A and a long side portion 365A, and the width L3 from the center O to the side portion 364A on the horizontal plane is different from the width L4 from the center O to the side portion 365A. Therefore, the anti-rotation protrusion 360A has a shape including at least two portions having different distances from the center O on the horizontal plane.

[0053] 5 has a substantially square prism shape and a substantially rectangular cross section (cross section along the horizontal direction), but is not limited thereto and may have any shape as long as it has at least two parts that are different in distance from the center O. For example, the anti-rotation protrusion 360A may have a substantially cylindrical shape and an elliptical cross section, the anti-rotation protrusion 360A may have a prism shape and a polygonal cross section, or the anti-rotation protrusion 360A may have a pyramid shape and a polygonal cross section, etc. The anti-rotation protrusion 360A having at least two parts that are different in distance from the center O means that the anti-rotation protrusion 360A is non-cylindrical or non-conical, in other words, it means excluding a configuration in which the anti-rotation protrusion 360A is cylindrical or conical and has a circular cross section.

[0054] Then, as shown in FIG. 6, the contents such as food are placed in each space partitioned by the partition 230, and the inner container 200 is placed inside the opening of the container body 300A. Specifically, the orientation of the inner container 200 is adjusted so that the rotation prevention protrusion 360A of the container body 300A fits into the recessed portion of the back surface 234 of the partition 230 of the inner container 200, and the inner container 200 is placed inside the opening of the container body 300A. Then, the lid body 100 (not shown) is placed over the packaging container 400A, and the lid side fitting portion 140 of the lid body 100 is externally fitted into the container side fitting portion 350A of the container body 300A. Furthermore, a strip-shaped label (not shown) is placed between the legs 320A and wrapped around the lid body 100 and the packaging container 400A, so that the packaging container 400A and the lid body 100 are firmly maintained in a sealed state.

[0055] According to the packaging container 400A of the second embodiment of the present invention, the anti-rotation protrusion 360A is provided at the center O of the bottom surface 310A of the container body 300A and at a distance from the center O. Since the inner container 200 is shaped to have two parts with different distances from the center O, even if the inner container 200 tries to rotate around the center O in a horizontal plane (see the arrow in FIG. 6(a)), one of the two parts with different distances from the center O abuts against the back side of the partition 230 of the inner container 200, and the inner container 200 can be reliably prevented from rotating. In particular, in the conventional packaging container of Patent Document 2, the engagement portion is located at the center of the bottom surface of the inner container and is cylindrical in shape, so that the inner container rotates around the center of the bottom surface, and the inner container cannot be reliably prevented from rotating. However, according to the packaging container 400A according to the second embodiment of the present invention, the anti-rotation protrusion 360A has a shape with two parts with different distances from the center O, i.e., a non-cylindrical shape, so that the inner container 200 can be reliably prevented from rotating, unlike the conventional case.

[0056] Furthermore, because anti-rotation protrusion 360A is formed to protrude from bottom surface 310A, even if inner container 200 tries to rotate on a horizontal plane within container body 300A, partition 230 is unlikely to climb over anti-rotation protrusion 360A, and rotation of inner container 200 can be reliably prevented. Also, back surface 234 side of partition 230 has not been effectively utilized until now because it is difficult to store food thereon, but it is effectively utilized as a contact point for anti-rotation protrusion 360A, and further, by utilizing back surface 234 side of partition 230, there is no need to provide a separate structure for contacting anti-rotation protrusion 360A, thereby reducing manufacturing costs.

[0057] Furthermore, in packaging container 400A according to embodiment 2 of the present invention, anti-rotation projections 360A extend in the radial direction of container body 300A, so that inner container 200 can be prevented from rotating reliably.

[0058] According to packaging container 400A of embodiment 2 of the present invention, as shown in Fig. 6(b), anti-rotation protrusion 360A has a shape that widens from tip 361A to end 362A to match the shape of the recessed portion on back surface 234 of partition 230, so that it can more reliably prevent rotation of inner container 200. Also, as shown in Fig. 6(b), tip 361A of anti-rotation protrusion 360A has an obtuse angle, so that when back surface 234 of partition 230 of inner container 200 is fitted into anti-rotation protrusion 360A, it can be smoothly slid and guided so that the upper and lower positions match.

[0059] Furthermore, according to packaging container 400A of embodiment 2 of the present invention, bottom surface 310A of container body 300A is provided with a plurality of legs 320A, and anti-rotation projections 360A are formed between legs 320A, so that partitions 230 of inner container 200 abutting against anti-rotation projections 360A are also positioned between legs 320A, as shown in Fig. 6(a). Furthermore, a strip-shaped label (not shown) wrapped between legs 320A is wrapped so as to overlap partitions 230 positioned between legs 320A, so that the contents, such as food, contained in the space partitioned by partitions 230 are not hidden by the strip-shaped label as much as possible, improving the appearance of the product.

[0060] The packaging container of the present invention is not limited to the above examples, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments, and these modifications and combinations are also included in the scope of rights.

Claims

1. A packaging container for storing a circular inner container in a circular container body having a partition for dividing a space for storing contents, A rotation prevention protrusion is provided at a position away from the center of the bottom surface of the circular container body, protruding from the bottom surface and abutting against the back side of the partition of the inner container to prevent the inner container from rotating; A packaging container characterized in that the engaging portion on the outer edge side of the inner container is placed on a portion of the side wall of the container body, and the inner container is stored in a state where a portion of the bottom wall of the inner container is floating above the bottom surface of the container body.

2. A packaging container for storing a circular inner container in a circular container body having a partition for dividing a space for storing contents, A rotation prevention protrusion is provided at the center of the bottom surface of the circular container body, protruding from the bottom surface and abutting against the back side of the partition of the inner container to prevent the inner container from rotating; The anti-rotation protrusion has a shape including two portions that are spaced apart from the center of the bottom surface of the container body by different distances, A packaging container characterized in that the engaging portion on the outer edge side of the inner container is placed on a portion of the side wall of the container body, and the inner container is stored in a state where a portion of the bottom wall of the inner container is floating above the bottom surface of the container body.

3. 2. The packaging container according to claim 1, wherein the anti-rotation projections are provided in two or more numbers.

4. 4. The packaging container according to claim 1, wherein the anti-rotation projection extends in a radial direction of the container body in a plan view.

5. 5. The packaging container according to claim 1, wherein the anti-rotation protrusion has a width increasing from its tip to its end in accordance with the shape of the recess on the rear surface side of the partition.

6. 6. A packaging container according to claim 1, wherein an angle between a surface of the tip of the anti-rotation projection and an inclined surface extending downward from the tip forms an obtuse angle greater than 90 degrees.

7. A plurality of legs are provided on the bottom surface of the container body, 7. The packaging container according to claim 1, wherein the anti-rotation projection is formed between the legs on the bottom surface.

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