Packaging container

Abstract

A container body that is easily fitted with a lid is realized. In a packaging container (1) provided with a container body (20) that is capable of being fitted with a lid (10), the container body (20) has a placement and storage portion (21), and a fitting recess (24) that is formed recessed toward the bottom surface side in a manner of surrounding the placement and storage portion (21) and is capable of being fitted with the lid (10), and a first leg portion (24a) that is further recessed toward the bottom surface side is formed in a portion of the fitting recess (24).

Description

Technical Field

[0001] This invention relates to packaging containers capable of containing food and the like. Background Technology

[0002] Regarding packaging containers, container bodies with structures capable of fitting into a lid have been extensively developed. Previously, when viewed from above, the location of such structures often differed from the location of the foot forming the surface on which the container body rests. For example, Patent Document 1 discloses a container body in which a stepped portion is formed between the fitting flange that fits into the lid and the foot.

[0003] (Existing technical literature)

[0004] Patent Document 1: Japanese Patent Application Publication No. 2005-8254 Summary of the Invention

[0005] (The problem the invention aims to solve)

[0006] Regarding the packaging container described in Patent Document 1, if an external force is applied from above to fit the fitting flange of the lid into the fitting flange of the container body, the periphery of the fitting flange will bend. Regarding this phenomenon, the following is a related analysis... Figure 7 The following example will be used for illustration. Figure 7 The examples shown have the same problems as prior art such as Patent Document 1, but do not represent the prior art itself.

[0007] Figure 7 Reference numeral 701 in the figure is a partial cross-sectional view of the container body X1 according to the reference example. The container body X1 has a foot X2 and a fitting recess X3 at its outer edge, with the foot X2 located inside the container body X1 as viewed from the fitting recess X3.

[0008] Figure 7 Reference numeral 702 in the accompanying drawing is a cross-sectional view of the fitting state of the lid X4 and the container body X1 in the reference example. The lid X4 has a fitting protrusion X5 that fits into the fitting recess X3. When the container body X1 and the lid X4 are fitted together, an external force needs to be applied from above the lid X4 in order to insert the fitting protrusion X5 into the fitting recess X3.

[0009] Due to this external force, the periphery of the fitting recess X3 will, for example, move towards... Figure 7The arrow in the inset of the attached drawing (reference numeral 702) points downwards, indicating deflection. Therefore, it is difficult to smoothly engage the container body X1 and the lid X4. Furthermore, if a strong external force is applied from above to a portion of the engaging protrusion X5 (the area of ​​poor engagement) to facilitate engagement, the container body X1 may tilt significantly. In this case, the object contained within the container body X1 will also tilt significantly, resulting in a disordered containment state of the object.

[0010] One aspect of the present invention is to realize a packaging container having a container body that can be easily fitted with a lid.

[0011] (Technical means used to solve the problem)

[0012] One aspect of the present invention provides a packaging container comprising a container body capable of fitting with a lid, the container body having: a receiving portion for receiving an object; and a fitting recess formed recessed toward the bottom surface in a manner surrounding the receiving portion, and capable of fitting with the lid. Furthermore, a first foot further recessed toward the bottom surface is formed in a portion of the fitting recess.

[0013] (Invention Effects)

[0014] According to one aspect of the present invention, it is possible to realize a packaging container having a container body that can be easily fitted with a lid. Attached Figure Description

[0015] Figure 1 This is a perspective view of the lid and container body of a packaging container according to an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A three-dimensional view of the bottom side of the container body shown.

[0017] Figure 3 yes Figure 1 The front and side views of the container body are shown.

[0018] Figure 4 yes Figure 1 The diagram shows a plan view of the main body of the container.

[0019] Figure 5 yes Figure 1 A schematic diagram showing the formation position of the second foot in the plan view of the container body.

[0020] Figure 6 yes Figure 1 The diagram shows the plan view, front view, and side view of the cover.

[0021] Figure 7 These are partial sectional views of the container body and lid, respectively, in the reference example. Detailed Implementation

[0022] The following is for reference Figures 1-6 This invention will now be described in detail with reference to one embodiment. In this embodiment, a packaging container having a main body and a lid for containing food items such as boxed meals and home-cooked dishes will be used as an example. However, the contents contained in the packaging container of this invention are not limited to food. Furthermore, the packaging container of this invention may also lack a lid.

[0023] like Figure 1 As shown, the packaging container 1 includes a lid 10 and a container body 20. The lid 10 and the container body 20 are configured to fit together.

[0024] In this embodiment, the lid 10 and the container body 20 are thermoformed resin sheets with a thickness of 0.1 mm to 4 mm, preferably 0.15 mm to 2.5 mm. The lid 10 and the container body 20 may also have different sheet thicknesses. As described later, the container body 20 of this embodiment has a shape that is not easily bent when fitted with the lid 10, so even if the sheet thickness is reduced to, for example, less than 0.5 mm, the required strength can be ensured.

[0025] As the resin sheet, thermoplastic resin sheets such as polyolefin resin sheets, polystyrene resin sheets, and polyester resin sheets can be used. These resin sheets can be foamed sheets or non-foamed sheets. Additionally, laminated sheets can also be used as resin sheets. Examples of laminated sheets include laminated foamed sheets (obtained by laminating a film onto a foamed sheet), co-extruded laminated sheets, and extruded laminated sheets. Examples of thermoforming methods include vacuum forming, thick-wall forming, vacuum compression forming, and hot plate forming.

[0026] The colors of the lid 10 and the container body 20 are not particularly limited. The lid 10 is preferably made of a transparent component, and more preferably colorless and transparent. This allows the contents placed in the container body 20 to be easily visually identified through the lid 10. The color of the container body 20 can be a single color or a combination of multiple colors.

[0027] Alternatively, patterns can be added to the container body 20. For example, the base color of the container body 20 can be black, and at least some parts can have patterns such as gold or red. In this embodiment, the lid 10 is colorless and transparent, and the container body 20 is a single black color.

[0028] [Container body]

[0029] like Figures 1-4As shown, the container body 20 includes a receiving portion 21, a groove 22, and a main body flange 23. Viewed from above, the container body 20 has a rectangular shape. Here, "rectangular" means that the container body 20 can be viewed as a rectangle when viewed as a whole, that is, approximately rectangular. Therefore, parts of the container body 20, such as its periphery, may have protrusions, at least one corner may be polygonal instead of right-angled, or it may be curved. This shape design also applies to the shape seen when viewing the various components of the packaging container 1 (described later) from any direction.

[0030] The shape of the container body 20 when viewed from above is not limited to a rectangle; it can be a square, triangle, pentagon, or other polygon, or a circle or other shape without definite corners.

[0031] The placement and receiving section 21 serves as a surface for holding the contents contained in the packaging container 1. Similar to the container body 20, the placement and receiving section 21 has a rectangular shape when viewed from above. An upwardly protruding protrusion may also be formed at the placement and receiving section 21. For example, one or more upwardly protruding protrusions may be formed at the placement and receiving section 21.

[0032] The shape of the protrusion is not particularly limited; for example, it can be a pyramid with the apex at the top. Thus, the shape of the protrusion when viewed from above is preferably uniform with the shape of the container body 20 and the housing 21. Furthermore, if multiple protrusions are formed, they are preferably arranged in a regular pattern on a portion or entirely of the housing 21.

[0033] Such a protrusion enhances the aesthetics of the container body 20. Furthermore, it prevents the contents placed on the receiving section 21 from slipping. Additionally, the protrusion serves as an identifier when the contents are placed onto the receiving section 21. Therefore, the presence of this protrusion in the receiving section 21 facilitates the orderly arrangement of the contents.

[0034] The groove 22 is formed as a groove-shaped component recessed towards the bottom surface of the container body 20, surrounding the housing 21. Like the housing 21, the groove 22 is rectangular in shape when viewed from above. Preferably, a second foot 22a, further recessed towards the bottom surface, is formed in a portion of the groove 22. The location of the second foot 22a in the groove 22 will be described later.

[0035] The second foot 22a is configured as a deeper groove than the other parts of the groove 22, and at least a portion of the bottom surface of the second foot 22a is used to form a placement surface, thus the second foot 22a functions as the foot of the container body 20. Figure 4 and Figure 5 In the diagram, the gray shading indicates the placement surface of the container body 20. For example... Figure 4 and Figure 5 As shown, the second foot 22a is formed as two short sides in the groove 22, and the two second feet 22a each have a placement surface.

[0036] In this way, the groove portion 22 has a deep groove portion formed by the second foot portion 22a, and a shallow groove portion outside the deep groove portion. Although the groove portion 22 has two second foot portions 22a on each of its short sides, the number of second foot portions 22a is not limited as long as the groove portion 22 has second foot portions 22a. Alternatively, the groove portion 22 may not have a shallow groove portion, thus functioning as a whole as the second foot portion 22a.

[0037] By designing such a groove 22, the number of wall surfaces of the container body 20 is increased, thereby improving the rigidity of the container body 20. Furthermore, in the event of leakage of liquids such as water or oil from the contained item, these liquids can escape from the holding section 21 to the groove 22. Therefore, it is easier to maintain the condition of the contained item well at all times. Moreover, depending on the type of contained item, the groove 22 can also function as a storage section for small items such as soy sauce or mustard.

[0038] Positionally, the top of the outer periphery of the groove 22 is higher than the top of the inner periphery of the groove 22. Here, "inner side" of the groove 22 refers to the central side of the container body 20 when viewed from above, and "outer side" refers to the outer periphery of the container body 20 when viewed from above. These concepts apply not only to the groove 22 but also to other components of the container body 20.

[0039] The top end of the inner periphery of the groove 22 is connected to the outer end of the mounting and receiving portion 21 in a continuous transition, and the top end of the outer periphery of the groove 22 is connected to the inner end of the main body flange portion 23 in a continuous transition. In other words, the mounting and receiving portion 21 is formed at a position lower than the top surface of the main body flange portion 23.

[0040] According to this design, for example, it is possible to prevent the contents placed in the receiving section 21 from extending beyond the outside of the slot 22 if the container body 20 tilts. In addition, when the container body 20 is viewed as a whole, the contents appear to be placed precisely within the area of ​​the receiving section 21.

[0041] The main flange 23 is a frame-shaped component that extends outward from the top of the outer periphery of the groove 22. The main flange 23 is formed to surround the housing 21 and the groove 22, and constitutes the top surface of the container body 20. The shape of the main flange 23 is the same as that of the container body 20, that is, it is rectangular when viewed from above.

[0042] The main flange portion 23 has a recessed portion 24 that faces downwards and can engage with the lid 10. Similar to the main flange portion 23, the recessed portion 24 is formed to surround the receiving portion 21 and the groove portion 22. The recessed portion 24 is formed as a groove into which the recessed protrusion 14 of the lid 10 is inserted. The recessed protrusion 14 will be described later. By inserting the recessed protrusion 14 into the recessed portion 24 to fix them together, the lid 10 and the container body 20 are engaged.

[0043] In this fixed state, the inner side surface of the fitting protrusion 14 abuts against the inner side surface of the fitting recess 24, and the outer side surface of the fitting protrusion 14 abuts against the outer side surface of the fitting recess 24. The fitting protrusion 14 and the fitting recess 24 are fixed together by the friction and / or pressing force generated between these abutting surfaces.

[0044] The fitting recess 24 is formed continuously along the entire circumference of the main body flange 23, but it is not limited to this. The fitting recess 24 can be formed at the main body flange 23 in a manner that surrounds the mounting and receiving portion 21. For example, the fitting recess 24 can be formed as a single groove with an interruption, or it can be formed as two or more grooves arranged in a manner that surrounds the mounting and receiving portion 21.

[0045] At a portion of the fitting recess 24, a first foot 24a is formed that is further recessed toward the bottom surface. At least a portion of the bottom surface of the first foot 24a serves to form a placement surface, thereby the first foot 24a functions as a foot of the container body 20. In this embodiment, as... Figure 4 and Figure 5 As shown, one first foot 24a is formed at each of the four corners of the container body 20, for a total of four, and each first foot 24a has a placement surface. However, the number of first feet 24a formed at the fitting recess 24 is not limited to this.

[0046] When the container body 20 has a rectangular or polygonal shape when viewed from above, it is preferable that each of the first feet 24a is formed at a position corresponding to each corner of the container body 20. With this design, the container body 20 can stand stably without tilting, solely by the first feet 24a.

[0047] When the fitting recess 24 is not configured as a single, continuous groove, but rather as multiple grooves, the first foot 24a only needs to be formed at at least one of these grooves. In this case, the first foot 24a may also be formed in a portion of at least one of the multiple grooves forming the first foot 24a, further recessed towards the bottom surface. Alternatively, at least one of the multiple grooves forming the fitting recess 24 may be a groove that is more recessed towards the bottom surface than the other grooves, and this groove itself may constitute the first foot 24a. The "portion" used to form the first foot 24a in the fitting recess 24 only needs to be a portion viewed from the perspective of the fitting recess 24 as a whole.

[0048] Since the first foot 24a is formed at a portion of the fitting recess 24, when the fitting protrusion 14 of the cover 10 is inserted into the fitting recess 24, even if an external force applied from above the cover 10 acts on the fitting recess 24 via the fitting protrusion 14, the fitting recess 24 can still be supported by the first foot 24a. Thus, the first foot 24a is formed directly below the portion that bears the external force from above, thereby preventing the main body flange 23 with the fitting recess 24 from bending due to the external force. Therefore, the cover 10 can be easily fitted into the container body 20.

[0049] Furthermore, since the lid 10 and the container body 20 can be smoothly fitted together, it is not necessary to apply particularly strong forces to the fitting protrusions 14 and 24 (areas where the fit is poor). This prevents situations such as the container body 20 tilting during fitting, causing the contained item to collapse and adhere to the inner surface of the lid 10, thus necessitating the disposal of the contained item or the lid 10. This contributes to achieving Sustainable Development Goals (SDGs) such as Goal 12 "Responsibility for Manufacturing and Use" and Goal 14 "Conservation of Marine Resources".

[0050] The container body 20 has a first foot 24a formed in the fitting recess 24 and a second foot 22a formed in the groove 22. When the container body 20 has the second foot 22a, the second foot 22a is preferably formed at a position between the fitting recess 24 and the mounting and receiving portion 21.

[0051] According to this design, the second foot 22a is positioned closer to the center of the container body 20 than the first foot 24a, allowing the container body 20 to be placed using both the first foot 24a on the outer periphery and the second foot 22a on the inner periphery. Therefore, the container body 20 is easily stabilized when placed on a surface such as a table (hereinafter referred to as a "table").

[0052] Furthermore, when the container body 20 has a second foot 22a, the first foot 24a and the second foot 22a do not necessarily need to always be configured as placement surfaces. For example, when the container body 20 is not subjected to external force, the second foot 22a can be configured as a placement surface of the container body 20, while the first foot 24a can not be configured as a placement surface of the container body 20, that is, there is a gap between the first foot 24a and the tabletop. In other words, when the container body 20 is laid flat, the bottom surface of the first foot 24a can be higher than the bottom surface of the second foot 22a.

[0053] In this structure, when the container body 20 is not subjected to external force, there is a slight distance between the first foot 24a and the tabletop. On the other hand, when the fitting protrusion 14 of the lid 10 is inserted into the fitting recess 24, the first foot 24a will contact the tabletop due to the external force applied to the fitting recess 24 from above, thus supporting the fitting recess 24. That is, the first foot 24a can be configured as the placement surface of the container body 20 even when the container body 20 is subjected to an external force from above.

[0054] In this way, the second foot 22a can function as a foot of the container body 20, and the first foot 24a can function as a foot only when the cover 10 is fitted with the container body 20. According to this arrangement, the first foot 24a and the second foot 22a can each function as a foot.

[0055] Furthermore, in the container body 20, it is preferable to ensure a larger area for holding the container in the holding portion 21. Therefore, the fitting recess 24 surrounding the holding portion 21 is often formed at the periphery of the container body 20. In this case, the first foot 24a is also located at the periphery of the container body 20. Therefore, when the container body 20 has only the first foot 24a as its foot, the peripheral portion of the holding portion 21 near the center of the container body 20 does not receive sufficient support, making the container body 20 prone to bending. For example, if the container is placed in the holding portion 21, it is easy to imagine that the weight of the container will cause the periphery of the holding portion 21 of the container body 20 to dent downwards.

[0056] To address this issue, if the second foot 22a is formed closer to the center of the container body 20 than the first foot 24a, the container body 20 can be placed stably and can achieve a state that is not easily bent, even if the first foot 24a is formed at the periphery of the container body 20.

[0057] In addition, such as Figure 5As shown, preferably at least a portion of the second foot 22a is formed in the direction (hereinafter referred to as the "orientation of the first foot 24a") from the center C of the mounting and receiving portion 21a toward the formation position of the first foot 24a. Figure 5 In the diagram, the dashed arrow indicates the orientation of the first foot 24a, and the dashed line represents the approximate area within the container body 20 that corresponds to the orientation of the first foot 24a. Furthermore, this dashed area is only a general indication and does not strictly represent the required area for at least a portion of the second foot 22a to be formed.

[0058] Each of the four corner regions of the container body 20 has a first foot 24a. Therefore, the orientation of the first foot 24a refers to the direction from the center C of the housing section 21 towards each of the four corners of the container body 20. This is provided that at least a portion of the second foot 22a is located in this orientation (approximately at...). Figure 5 Within the range shown by the dotted line, it can be said that the second foot 22a is formed in a position consistent with the orientation of the first foot 24a.

[0059] Furthermore, when the container body 20 has multiple first feet 24a, the "orientation of the first foot 24a" can be any direction from the center C toward the formation position of at least one first foot 24a. Additionally, when the container body 20 has multiple second feet 22a, any second foot 22a can be formed in the orientation of the first foot 24a.

[0060] The contents placed in the housing 21 are mainly arranged at or around the center C of the housing 21. Therefore, the weight of the contents tends to act particularly around the center C. At this time, if the second leg 22a is formed in the position of the first leg 24a, the second leg 22a can effectively assist the first leg 24a in supporting the container body 20 containing the contents.

[0061] Furthermore, if the second leg 22a is formed between the fitting recess 24 and the mounting and receiving portion 21, the second leg 22a is closer to the center C than the first leg 24a. Therefore, the second leg 22a can more effectively support the container body 20 on which the contained object is placed around the center C. Thus, the deflection of the container body 20 caused by the weight of the contained object can be effectively reduced. In the case where the container body 20 has multiple first legs 24a, to maximize this effect, it is preferable that a portion of the second leg 22a is formed in the orientation of each first leg 24a.

[0062] In addition, such as Figure 4 and Figure 5As shown, the sum of the placement areas (ground contact areas) of the two second legs 22a is greater than the sum of the placement areas of the four first legs 24a. Thus, the placement area of ​​the second legs 22a is preferably larger than the placement area of ​​the first legs 24a. The second legs 22a are positioned closer to the center of the container body 20 than the first legs 24a. In this case, the larger the placement area of ​​the second legs 22a, the easier it is to stabilize the placement state of the container body 20 containing the contained object. Furthermore, if the placement area of ​​the second legs 22a is larger than the placement area of ​​the first legs 24a, then the effect of the first legs 24a supporting the fit between the cover 10 and the container body 20 can be ensured, and the stability of the placement state of the container body 20 can be achieved to a high degree.

[0063] The container body 20 has two second legs 22a. Viewed along the shorter side of the container body 20, the second legs 22a are continuously and uninterruptedly formed, starting from the position corresponding to one first leg 24a and ending at the position corresponding to the other first leg 24a. With this structure, the placement area of ​​the second legs 22a is larger than the placement area of ​​the first legs 24a.

[0064] Furthermore, when multiple first feet 24a and / or second feet 22a are formed, it is sufficient that the sum of the placement areas of all second feet 22a is greater than the sum of the placement areas of all first feet 24a. That is, the placement area of ​​a single second foot 22a can also be smaller than the placement area of ​​a single first foot 24a. In this case, an appropriate number of second feet 22a are formed at the groove 22 such that the sum of the placement areas of all second feet 22a is greater than the sum of the placement areas of all first feet 24a.

[0065] In this way, regardless of the number of the first foot 24a and / or the second foot 22a formed, as long as the placement area of ​​the second foot 22a is greater than the placement area of ​​the first foot 24a when viewed as a whole, the effect of a stable placement state of the container body 20 can be obtained.

[0066] Furthermore, by making the placement area of ​​the second foot 22a larger than that of the first foot 24a, the productivity of the container body 20 can be easily maintained. The fitting recess 24 for forming the first foot 24a preferably has a narrower groove width. From the viewpoints of ease of fitting and aesthetics, the width of the fitting protrusion 14 of the cover 10 in the inward-outward direction is not recommended to be too large. Since the groove width of the fitting recess 24 into which the fitting protrusion 14 is inserted corresponds to the width of the fitting protrusion 14, the narrower the width of the fitting protrusion 14, the narrower the groove width of the fitting recess 24.

[0067] When the groove width of the fitting recess 24 is narrow, considering the demolding performance when using the sheet forming method, the forming range of the first foot 24a, which is further recessed in the fitting recess 24, is preferably as small as possible. When the placement area of ​​the first foot 24a is smaller than the placement area of ​​the second foot 22a, it is easy to design the forming range of the first foot 24a in the fitting recess 24 to a size that will not affect the manufacturability of the container body 20.

[0068] A pinchable portion 25 may be formed at at least one of the four corners of the main flange portion 23. The top surface of the pinchable portion 25 is lower than the top surface of the other parts of the main flange portion 23. With such a pinchable portion 25, when the user removes the lid 10 from the container body 20, they can easily pinch a corner of the lid 10 and the pinchable portion 25 corresponding to that corner. Therefore, the user can easily remove the lid 10 from the container body 20.

[0069] Furthermore, as in this embodiment, it is preferable to form pinchable portions 25 at all four corners of the main body flange portion 23. According to this design, the user can easily remove the lid 10 from the container body 20 starting from any corner of the packaging container 1.

[0070] One or more recesses 26 may be formed on the container body 20. The recesses 26 extend from the outer sidewall of the groove 22 to the main body flange 23 and are recessed toward the bottom surface of the container body 20. The recesses 26 improve the strength of the container body 20 and enhance its demolding properties during compression molding. The shape of the recesses 26 can be appropriately modified depending on the compression molding method; for example, it may not be recessed toward the bottom surface but protrude toward the top surface.

[0071] [Cover]

[0072] like Figure 6 As shown, the lid 10 includes a top plate portion 11, a side wall portion 12, and a lid flange portion 13. The lid 10 has a rectangular shape when viewed from above. In this way, the shape of the lid 10 is preferably the same as the shape of the container body 20 when viewed from above.

[0073] The top plate portion 11 is a rectangular plate-shaped component formed by a single surface. The shape of the top plate portion 11 is preferably the same as the shape of the cover 10 and the container body 20 when viewed from above. With such a shape, when the top plate portion 11 is made of a transparent component, the contents can be clearly seen from above the packaging container 1 through the top plate portion 11.

[0074] The number of surfaces constituting the top plate portion 11 is not particularly limited, but one is preferred. This ensures good visibility of the contained items and allows the container body 20 to be easily placed on the top plate portion 11 when the packaging containers 1 need to be stacked on top of each other. Alternatively, the top plate portion 11 may also be composed of multiple surfaces.

[0075] The side wall portion 12 is a component located around the top plate portion 11 and extending continuously from the outer end of the top plate portion 11 to the lower cover flange portion 13. The side wall portion 12 is composed of an upper side wall portion 12a and a lower side wall portion 12b.

[0076] The upper sidewall portion 12a is formed to extend substantially vertically downward from the outer end of the top plate portion 11. The lower sidewall portion 12b is formed to extend from the lower end of the upper sidewall portion 12a to the cover flange portion 13, and slopes outward as it extends downward. Looking at the area of ​​the sidewall portion 12 where the upper sidewall portion 12a is formed, its shape in plan view is approximately the same as that of the top plate portion 11. However, looking at the area of ​​the sidewall portion 12 where the lower sidewall portion 12b is formed, its shape in plan view widens as it descends.

[0077] Since the sidewall portion 12 has an upper sidewall portion 12a, the upward protrusion formed by the top plate portion 11 and the upper sidewall portion 12a can be easily inserted into the portion enclosed by the mounting and receiving portion 21 and the groove portion 22 on the bottom surface of the container body 20. Therefore, when it is necessary to stack the packaging containers 1 on each other, the container body 20 can be easily placed on the top plate portion 11, and the stacked packaging containers 1 are less likely to shift in position. From this point of view, the height of the upper sidewall portion 12a in the vertical direction can be approximately the same as, or slightly higher than, the height of the second foot portion 22a of the groove portion 22 in the vertical direction.

[0078] The lid flange 13 is a frame-shaped component that extends outward from the lower end of the side wall 12. The shape of the lid flange 13 is the same as that of the lid 10, and it is rectangular when viewed from above. The lid flange 13 has a fitting protrusion 14 that protrudes toward the container body 20 and can fit into the container body 20.

[0079] The fitting protrusion 14 is formed as a raised ridge on the flange portion 13 of the lid, which continuously surrounds the top plate portion 11 and the side wall portion 12 and protrudes downward. The fitting protrusion 14 is inserted into and fixed in the fitting recess 24 of the container body 20. Therefore, the position where the fitting protrusion 14 is formed on the flange portion 13 of the lid is the position that matches the position where the fitting recess 24 is formed on the container body 20.

[0080] The height of the fitting protrusion 14 in the vertical direction is preferably approximately equal to the depth of the portion of the fitting recess 24 of the container body 20 where the first foot 24a is not formed. With this design, almost the entire fitting protrusion 14 can be inserted into the fitting recess 24 for fixation, thus ensuring a more secure fit. Furthermore, when the cap 10 and the container body 20 are fitted together, the fitting protrusion 14 is not visible from the side of the packaging container 1, thus ensuring a good aesthetic appearance for the packaging container 1.

[0081] When the fitting recess 24 is a discontinuous shape, the fitting protrusion 14 can also be formed in a discontinuous shape accordingly. For example, the fitting protrusion 14 can be formed as a single protrusion with one interruption, or two or more protrusions can be formed intermittently in a manner that surrounds the top plate portion 11 and the side wall portion 12.

[0082] At the lower end of the fitting protrusion 14, a protrusion may also be formed that protrudes horizontally toward at least one of the center side or the outer periphery side of the cover 10. Furthermore, when the fitting protrusion 14 has such a protrusion, it is preferable to form a locking groove at a corresponding position in the fitting recess 24 of the container body 20, so that when the cover 10 and the container body 20 are fully fitted, the protrusion fits precisely into the locking groove at that corresponding position.

[0083] Specifically, for example, a protrusion protruding horizontally toward the center of the cover 10 can be formed along the entire circumference of the lower end of the fitting protrusion 14, and an inwardly recessed locking groove can be formed along the entire circumference of the bottom end of the fitting recess 24, excluding the first foot 24a. With this arrangement, when the fitting protrusion 14 is fully inserted into the fitting recess 24, the protrusion of the fitting protrusion 14 is engaged in the locking groove of the fitting recess 24. Therefore, the cover 10 and the container body 20 can be securely fitted together.

[0084] 〔Summarize〕

[0085] One aspect of the present invention provides a packaging container comprising a container body capable of fitting with a lid, the container body having: a receiving portion for receiving an object; and a fitting recess formed recessed toward the bottom surface in a manner surrounding the receiving portion, and capable of fitting with the lid. Furthermore, a first foot further recessed toward the bottom surface is formed in a portion of the fitting recess.

[0086] According to the above scheme, the first foot is formed in a portion of the fitting recess. When the lid is fitted into the fitting recess, even if an external force applied from above the lid acts on the fitting recess, the fitting recess can still be supported by the first foot. Thus, the first foot a is formed directly below the part of the container body that bears the external force from above, thereby preventing the periphery of the fitting recess from deflecting due to the external force. Therefore, when the packaging container has a lid, the lid can be easily fitted into the container body.

[0087] Furthermore, since the lid and container body can be smoothly fitted together via the first foot, it is not necessary to apply particularly strong force to the fitting recess (the area where the fit with the lid is poor). Therefore, it can prevent situations such as the container body being accidentally tilted when fitting the lid to the container body, which could lead to disorder in the containment state of the contained item.

[0088] In one aspect of the invention, a second foot, different from the first foot, may be formed in the direction from the center of the mounting and receiving portion toward the formation position of the first foot and at a position between the fitting recess and the mounting and receiving portion.

[0089] According to the above scheme, the second leg is formed closer to the center of the container body than the first leg. The container body can be placed using both the first leg on the outer periphery and the second leg on the inner periphery. Therefore, the container body is placed stably. In particular, when the first leg is formed at the periphery of the container body, the container body can be placed in a stable and non-bending state.

[0090] Furthermore, the second leg is positioned in the direction from the center of the housing section towards the formation of the first leg. With this design, when an object is placed around the center of the housing section of the container body, the second leg can effectively assist the first leg in providing support. Therefore, it effectively reduces the deflection of the container body caused by the weight of the object.

[0091] In one aspect of the present invention, the placement area of ​​the second foot is larger than the placement area of ​​the first foot.

[0092] According to the above scheme, since the placement area of ​​the second foot is larger, the placement state of the container body containing the contained object is easily stabilized. In addition, if the placement area of ​​the second foot is larger than that of the first foot, the effect of the first foot supporting the fit between the cover and the container body can be ensured, and the placement state of the container body can be stabilized to a high degree.

[0093] In one aspect of the invention, the following solution may also be adopted: the cover body is further provided, wherein a fitting protrusion is formed on the cover body and protrudes toward the container body for engaging with the fitting recess.

[0094] According to the above scheme, the fitting protrusion can be inserted into the fitting recess and fixed to securely fit the lid and the container body together.

[0095] This invention is not limited to the embodiments described herein. Various modifications can be made within the scope of the technical concept described in the specification. Embodiments obtained by appropriately combining different technical means disclosed in the embodiments are also included within the technical scope of this invention.

[0096] <Explanation of Figure Markers>

[0097] 1 Packaging Container

[0098] 10 caps

[0099] 14 fitting convex part

[0100] 20 Container Body

[0101] 21 Containment Units

[0102] 22a Second foot

[0103] 24 fitting recess

[0104] 24a First foot

[0105] Center C

Claims

1. A packaging container comprising a container body capable of fitting with a lid, characterized in that, The container body has: The containment section is used to contain the contained items; A recessed portion is formed recessed towards the bottom surface in a manner that surrounds the mounting and receiving portion, and is capable of fitting with the cover; and The groove is recessed towards the bottom surface of the container body in a manner that surrounds the housing portion, and has a deep groove portion and a shallow groove portion other than the deep groove portion. and, In a portion of the fitting recess, a first foot is formed that is further recessed toward the bottom surface. A second foot, different from the first foot, is formed in the direction from the center of the mounting and receiving portion toward the formation position of the first foot and at a position between the fitting recess and the mounting and receiving portion. The deep groove portion is formed by the second foot portion.

2. The packaging container according to claim 1, characterized in that, The placement area of ​​the second foot is larger than the placement area of ​​the first foot.

3. The packaging container according to claim 1 or 2, characterized in that, The packaging container also includes the aforementioned lid. The cover has a fitting protrusion that protrudes toward the container body and is used to fit into the fitting recess.

Images