JP2024034348A - Packaging container - Google Patents

Abstract

To reduce the possibility of damage to a package, a fixed object, or a packaging container.SOLUTION: A packaging container (1) includes a container body (20) and a lid (10) that is internally fitted with the container body. At least a portion of an outer lid edge (13) in the lid is located between a lid fastening part (27) and an inner circumferential step part (28) and at least spaced from the inner circumferential step part in a state in which the lid is internally fitted with the container body and a portion of a lid picking piece (14) is accommodated in an accommodation part (29).SELECTED DRAWING: Figure 7

Description

One aspect of the present invention relates to a packaging container that can contain foodstuffs and the like.

BACKGROUND ART Plastic packaging containers for storing foods are used in department stores, supermarkets, and the like. Foods are displayed and sold on display shelves while being housed in packaging containers. An example of such a packaging container is disclosed in Patent Document 1.

The packaging container of Patent Document 1 includes a container body and a lid. A flange portion located at at least one corner of the container body is provided with an inclined surface portion that slopes toward the outside of the container body. The lid is provided with a knob that can be pinched when opening the lid, at a position that coincides with the inclined surface when the lid is fitted into the container body (closed state). Therefore, the inclined surface portion allows the knob to be flipped up toward the outside of the container body, making it easier to pinch the knob. Moreover, the knob protrudes from the container body to an extent that it does not interfere with adjacent packaging containers when the lid is closed.

Japanese Patent Application Publication No. 2012-171657

In order to improve the ease of picking, when the lid is closed, the knob protrudes from the container body or is tilted upwards to the outside, so that a person's hand or other object may come into contact with the knob. It becomes easier. The force (referred to as external force) that acts on the knob when a person's hand, etc. touches the knob causes the packaging material (e.g. plastic wrap) that wraps the packaging container to break, and the lid and container body to be fixed to each other. There is a risk that the object (for example, tape) will be torn or the packaging container will be damaged (for example, dented).

One aspect of the present invention aims to realize a packaging container that can reduce the possibility of damage to a package, a fixed object, or a packaging container.

A packaging container according to aspect 1 of the present invention is a packaging container comprising a container body and a lid that fits inside the container body, the lid being an outer edge of the lid. The container body has a lid knob protruding from a part of the outer edge of the lid, the container body is located inside the flange of the container body, and the outer edge of the lid can be locked from above. a stop part, an inner circumferential step part located inside the flange part and below the lid locking part and capable of supporting the outer edge of the lid body from below, and an inner circumferential step part that is capable of supporting the outer edge part of the lid body from below; and a storage part that accommodates the lid body while being inclined upwardly toward the container body, and at least a part of the outer edge of the lid body is fitted inside the container body so that a part of the lid body knob piece is accommodated. is located between the lid locking portion and the inner circumferential stepped portion and is spaced apart from at least the inner circumferential stepped portion in a state accommodated in the housing portion.

According to the above configuration, when the lid knob is subjected to an external force in a state in which the lid is internally fitted into the container body, at least one of the outer edges of the lid that is spaced apart from the inner circumferential stepped portion is A portion can be moved downward (towards the inner peripheral step). That is, the lid can be sunk in while maintaining the state in which the lid is fitted into the container body. Since this movement (sinking) absorbs the external force, it is possible to reduce the possibility that the package, fixed object, or packaging container will be damaged by the external force.

In the packaging container according to aspect 2 of the present invention, in aspect 1, at least a part of the outer edge of the lid that is spaced apart from the inner circumferential step is a protrusion that protrudes from the accommodating part of the lid knob. When the protruding portion moves toward the accommodating portion due to the action of an external force on the portion, it may be supported by the inner circumferential step by moving downward and coming into contact with the inner circumferential step.

According to the above configuration, when the protruding portion of the lid knob moves toward the accommodating portion due to the action of the external force, at least a portion of the outer edge of the lid that is spaced apart from the inner peripheral stepped portion is moved downward. It can be moved and supported by the inner circumferential stepped portion. Therefore, the external force applied until the entire outer edge of the lid body is supported by the inner circumferential step can be absorbed by the movement.

In the packaging container according to aspect 3 of the present invention, in aspect 1 or 2, the protruding portion of the lid knob that protrudes from the accommodating portion may be a tip portion of the lid knob other than the tongue piece. good.

According to the above configuration, since the protruding portion of the lid knob is the tip portion of the lid knob, the area on which the external force acts can be reduced. Therefore, the occurrence of damage to the packaged object, fixed object, or packaging container can be further reduced.

In the packaging container according to aspect 4 of the present invention, in any of aspects 1 to 3, the top of the storage portion may be a part of the inner end of the flange.

According to the above configuration, the inclination of the entire lid knob piece can be made to match the inclination of the accommodating portion. Therefore, the lid body knob piece can be easily pinched.

In the packaging container according to aspect 5 of the present invention, in any one of aspects 1 to 4, the container body has a corner cut portion at at least one of the four corners of the container body, and the accommodating portion includes: It may be formed at a position corresponding to the corner cut portion.

According to the above configuration, since the lid knob protrudes from the corner cutout when the lid is internally fitted into the container body, the lid knob is susceptible to the action of the external force. Even in such a form, when the packaging container of one aspect of the present invention is subjected to the external force, it is possible to absorb the external force by moving at least a portion of the outer edge of the lid downward.

According to one aspect of the present invention, the possibility of damage to a package, fixed object, or packaging container can be reduced.

FIG. 1 is a perspective view of a packaging container according to an embodiment of the present invention. It is a side view of the said packaging container. It is a top view of the container main body with which the said packaging container is provided. It is a perspective view of the said container main body. FIG. 2 is a plan view showing a corner of the container body and a plan view showing a corner of a lid included in the packaging container. It is a top view and a side view of the said lid body. It is a figure for demonstrating the change of the position of the said lid body in the state which the said lid body internally fitted to the said container main body. It is a figure which shows the positional relationship of the lid body knob piece and a main body knob piece in the state where the said lid body is internally fitted to the said container main body. It is a schematic diagram which shows the positional relationship of the lid body knob piece and the main body knob piece in the said packaging container and the packaging container as a comparative example.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9. In this embodiment, a packaging container according to one aspect of the present invention is a packaging container that stores foodstuffs such as boxed lunches and side dishes as a container, and includes a container body and a lid. This will be explained using an example. However, the object contained in the packaging container according to one embodiment of the present invention is not limited to foodstuffs.

In this specification, "horizontal" and "vertical (vertical)" are defined based on the case where the packaging container is placed on a horizontal surface such that the bottom of the container body is in contact with the horizontal surface. In addition, in this specification, "upper" and "upper side" refer to the direction from the container body to the lid body (+Z-axis direction) when the lid body is fitted to the container body, and "lower side" and "lower side" refer to the direction from the container body to the lid body (+Z-axis direction). "side" refers to the opposite direction (-Z-axis direction).

[Packaging container]
FIG. 1 is a perspective view of a packaging container 1. FIG. Reference numeral 1001 in FIG. 2 is a side view of the packaging container 1 when viewed from the short side (a side view of the packaging container 1 when viewed from the viewing direction VD1). Reference numeral 1002 in FIG. 2 is a side view of the packaging container 1 when viewed from the long side (a side view of the container body 20 when viewed from the viewing direction VD2). As shown in FIGS. 1 and 2, the packaging container 1 is a container capable of accommodating objects such as foods, and includes a lid 10 and a container body 20. The lid 10 and the container body 20 are configured such that the lid 10 fits inside the container body 20.

In this embodiment, the lid 10 and the container body 20 are each formed by thermoforming a resin sheet with a sheet 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 have different sheet thicknesses. Since the container main body 20 according to the present embodiment has a shape that does not easily bend when fitted with the lid 10, the necessary strength can be ensured even if the sheet thickness is reduced to 0.5 mm or less.

As the resin sheet, for example, a thermoplastic resin sheet such as a polyolefin resin sheet, a polystyrene resin sheet, a polyester resin sheet, etc. can be used. These resin sheets may be foam sheets or non-foam sheets. Moreover, a laminated sheet can also be used as the resin sheet. As the laminated sheet, for example, a film laminated foam sheet in which a film is laminated on a foam sheet, a coextrusion laminate sheet, and an extrusion laminate sheet can be used. Examples of thermoforming methods include vacuum forming, thick air forming, vacuum pressure forming, and hot plate forming.

The colors of the lid 10 and the container body 20 are not particularly limited. It is preferable that the lid body 10 is made of a transparent member, and more preferably, it is colorless and transparent. According to this, the object placed on the container body 20 can be easily recognized through the lid 10. The color of the container body 20 may be a single color or may include a plurality of colors.

Further, the container body 20 may be provided with a pattern. For example, the base color of the container body 20 is black, and at least a portion thereof may be patterned in gold, red, or the like. In this embodiment, the lid 10 is colorless and transparent, and the container body 20 is monochrome black.

[Container body]
FIG. 3 is a plan view (top view) of the container body 20. Reference numerals 1011 and 1012 in FIG. 4 are perspective views of the container body 20. Reference numeral 1021 in FIG. 5 is a plan view showing a corner of the container body 20. As shown in FIG. As shown in FIGS. 3 and 4, the container main body 20 includes an accommodation and placement section 21, a placement wall section 22, an accommodation peripheral wall section 23, an upper peripheral wall section 24, a flange section 25, and a main body outer edge section 26. , a lid locking part 27 , an inner circumferential step part 28 , a housing part 29 , and a main body knob piece 30 .

The container body 20 has a rectangular outer shape in plan view. Here, "rectangular shape" means a shape that can be regarded as a rectangular shape when the container body 20 is viewed as a whole, that is, a substantially rectangular shape. Therefore, for example, a protruding portion may be formed on a part of the periphery of the container body 20, or at least one corner may be formed not in a right-angled shape but in a polygonal shape, or in a curved shape. You can leave it there. This also applies to the shape of each part (described later) constituting the packaging container 1 when viewed from any direction.

The outer shape of the container body 20 in plan view is not limited to a rectangular shape, but may be a polygonal shape such as a square, a triangular shape, a pentagonal shape, etc., or a shape without clear corners such as a circular shape. Good too.

The accommodation and placement section 21 constitutes a surface on which the object to be accommodated in the packaging container 1 is placed. Like the container body 20, the accommodation and placement section 21 has a rectangular outer shape in plan view. The placement wall portion 22 is a portion that protrudes from the accommodation and placement portion 21, and partitions the accommodation and placement portion 21 into a plurality of placement portions.

In this embodiment, as shown in FIG. 3, the accommodation and placement section 21 is partitioned into a first accommodation and placement section 211 and a second accommodation and placement section 212 by a placement wall section 22. The first accommodation and placement section 211 is an accommodation and placement section formed at two opposing corners of the four corners (corners) of the accommodation and placement section 21 . The second accommodation and placement section 212 is an accommodation and placement section that includes two other opposing corners and is formed at a position adjacent to the first accommodation and placement section 211 .

The housing peripheral wall part 23 is formed at the peripheral edge of the housing and mounting part 21 and forms a lower part of the side wall of the container body 20. In this embodiment, the housing peripheral wall part 23 is inclined upwardly from the peripheral edge of the housing and placing part 21 toward the outside. The housing peripheral wall portion 23 may not be inclined upward, but may be formed substantially perpendicularly to the housing and mounting portion 21 from the peripheral edge of the housing and mounting portion 21 . "Substantially perpendicular" is a concept that includes perpendicular and angles that can be considered perpendicular. Further, in the present embodiment, the housing peripheral wall part 23 includes a first housing peripheral wall part 231 that forms the first housing and mounting part 211 together with the mounting wall part 22, and a second housing and mounting part 212 that forms the second housing and mounting part 212 together with the mounting wall part 22. A second housing peripheral wall portion 232 that forms a second housing wall portion 232 is provided.

The accommodation and placement section 21, the placement wall section 22, and the accommodation peripheral wall section 23 form a plurality of spaces in which objects to be accommodated are accommodated. The position and number of placement walls 22 can be arbitrarily determined. The location and number of placement walls 22 determine the location and size of the space that accommodates the object. The container main body 20 does not need to include the mounting wall portion 22. In this case, one space for accommodating the object may be formed by one accommodating mounting section 21 and one accommodating peripheral wall section 23.

The upper peripheral wall portion 24 is formed above the housing peripheral wall portion 23 and forms an upper portion of the side wall of the container body 20, as shown in FIG. The upper peripheral wall portion 24 is a portion that projects upward from the outer end of the inner peripheral step portion 28 that is continuous with the upper end of the housing peripheral wall portion 23 . That is, the upper peripheral wall part 24 is located outside the upper end of the housing peripheral wall part 23 by the width of the inner peripheral step part 28 in the horizontal direction. In this embodiment, the upper circumferential wall portion 24 is formed from the outer end of the inner circumferential step portion 28 to be substantially perpendicular to the inner circumferential step portion 28 .

The flange portion 25 is an upper surface portion of the container body 20 that is continuous with the upper end portion of the upper peripheral wall portion 24 . In this embodiment, the flange portion 25 is formed with a plurality of upwardly protruding portions whose tip portions form ridge lines in order to improve the design thereof. Such a protruding portion may not be formed on the flange portion 25, and the flange portion 25 may be a mere flat surface. A "flat surface" may be any surface that can be considered a flat surface, and the surface may include some unevenness. When the flange portion 25 is a simple plane, the flange portion 25 may be a plane extending along a substantially horizontal plane. A "substantially horizontal surface" is a concept that includes a horizontal surface and a surface that can be considered a horizontal surface. However, the flange portion 25 may be an inclined surface inclined from a substantially horizontal surface.

The main body outer edge portion 26 is an outer edge portion (outer peripheral wall) of the container main body 20 that is continuous with the outer peripheral end portion of the flange portion 25 . In this embodiment, as also shown by reference numeral 1021 in FIG. 5, corner cut portions 261 are formed at the four corners of the outer edge portion 26 (ie, the four corners of the container body 20). The corner cut portion 261 is a portion that is continuous with the long side and the short side of the main body outer edge portion 26 and extends in a direction different from the long side and the short side when viewed from above. The corner cut portion 261 is a portion obtained by cutting out a corner portion of the outer edge portion 26 of the main body when the corner portion is a right angle when viewed from above. The corner cut portions 261 may not be formed at all four corners (four corners) of the outer edge portion 26 of the main body. The corner cut portion 261 may be formed at at least one of the four corners.

The lid locking part 27 is located inside the flange part 25 and is a part that can lock the lid outer edge part 13 (see FIG. 6) from above. The lid locking portion 27 is a portion that protrudes inward from the upper peripheral wall portion 24. Further, as shown in FIG. 4, the lid locking portion 27 is formed in the upper circumferential wall portion 24 at a position spaced apart from an inner circumferential step portion 28 continuous to the lower end portion of the upper circumferential wall portion 24.

In this embodiment, two lid locking portions 27 are formed on both sides of the four corners of the upper peripheral wall portion 24 . As also shown by reference numeral 1021 in FIG. 5, in the corner portion where the accommodating portions 29 are formed, two accommodating portions 29 are formed on both sides of the accommodating portions 29. It is sufficient that the lid locking portions 27 are formed at a position spaced apart from the inner peripheral step portion 28, and for example, the number of lid locking portions 27 and the lid locking portions 27 when the container body 20 is viewed from above are determined. The position of can be determined arbitrarily. The position and number of the lid locking portions 27 may be determined in consideration of ease of fitting the lid 10 into the container body 20, etc.

The inner peripheral step part 28 is located inside the flange part 25 and below the lid locking part 27, and is a part that can support the lid outer edge part 13 from below. The inner circumferential step portion 28 is a flat portion whose inner end portion is continuous with the upper end portion of the housing circumferential wall portion 23 and whose outer end portion is continuous with the lower end portion of the upper circumferential wall portion 24 . The inner peripheral step portion 28 is a plane extending along a substantially horizontal plane. In this case, the inner circumferential stepped portion 28 can stably support the outer edge portion 13 of the lid body. However, the inner circumferential step portion 28 may be an inclined surface inclined from a substantially horizontal surface. As described above, the inner peripheral step portion 28 is formed below the lid locking portion 27 and at a position spaced apart from the lid locking portion 27 (see FIG. 4).

The accommodating portion 29 is a portion that accommodates the lid body knob piece 14 (see FIG. 6) while slanting upward at an outward slope. The accommodating portion 29 is formed at a position facing the lid knob 14 when the lid 10 is internally fitted and stored in the container body 20. That is, the accommodating portion 29 and the lid knob piece 14 are formed on the container body 20 and the lid 10, respectively, so as to face each other when the lid 10 is fitted into the container body 20.

The housing portion 29 is a notch portion formed in a part of the upper peripheral wall portion 24 and the flange portion 25, and includes an inclined surface 291 that slopes upward toward the outside, and both ends of the inclined surface 291 along the slope direction. and an accommodation side wall 292 formed in the section. The inclination angle and size of the inclined surface 291 may be determined in consideration of the size of the lid knob 14. The inclined surface 291 allows the lid knob 14 to be inclined upwardly.

In this embodiment, the top portion 293 (outer end portion of the inclined surface 291) of the accommodating portion 29 is a part of the flange portion 25. Specifically, the top portion 293 of the accommodating portion 29 is the inner end portion of the flange portion 25.

When the top portion 293 is not a part of the flange portion 25, that is, when the top portion 293 is formed below the flange portion 25, there is a gap between the top portion 293 and the flange portion 25 that is connected to the inclined surface 291 and is approximately perpendicular to the flange portion 25. An extending sidewall is formed. In this case, the lid knob piece 14 is accommodated in the accommodating portion 29 in a state where it is bent at the connecting portion between the inclined surface 291 and the side wall. Therefore, when the lid knob piece 14 is stored in the housing part 29, the length that the lid knob piece 14 protrudes from the housing part 29 (referred to as the protrusion length) is the length that was assumed at the time of design (the assumed length). (referred to as length).

The assumed length is designed in consideration of the ease with which the lid knob piece 14 can be pinched and the difficulty in causing collisions with hands or objects. Therefore, if the protrusion length is shorter than the expected length, the lid knob piece 14 becomes difficult to pinch. On the other hand, when the top portion 293 is a part of the flange portion 25, the inclination of the entire lid knob piece 14 can be adjusted to the inclination of the accommodating portion 29. Therefore, the lid knob piece 14 can be made to protrude from the accommodating portion 29 by the assumed length, so that the lid knob piece 14 can be easily pinched.

Further, in this embodiment, the accommodating portion 29 is formed at a corner of the upper peripheral wall portion 24 and the flange portion 25. That is, the accommodating portion 29 is formed at a position corresponding to the corner cut portion 261. In this embodiment, the accommodating portions 29 are formed at positions corresponding to two of the four corner cut portions 261 that are diagonally opposite to each other.

The main body knob piece 30 is a part that protrudes outward from a part of the main body outer edge portion 26. The body gripping piece 30 is a portion that is gripped by a user who performs an operation to remove the lid 10 from the container body 20. In this embodiment, the main body knob piece 30 is formed at a corner of the main body outer edge portion 26. That is, the main body knob piece 30 protrudes from the corner cutout 261. In this embodiment, the main body knob piece 30 is formed in two corner cuts 261 that are diagonally opposite to each other and have accommodating parts 29 formed at corresponding positions among the four corner cuts 261. There is.

Since the accommodating portion 29 and the body knob 30 are formed at the corner of the container body 20, when the lid 10 is fitted into the container body 20 and viewed from above, the lid body knob 14 and The main body knob piece 30 can be positioned on the same straight line. Therefore, when the user removes the lid 10 from the container body 20 by pinching the lid knob 14 and the main body knob 30, the lid knob 14 and the main body knob 30 do not lie on the same straight line. The lid body 10 can be easily removed from the container body 20 compared to the case where the lid body 10 is removed from the container body 20.

Further, the corner cut portion 261 is formed at the corner of the container body 20, and the body knob piece 30 is formed in the corner cut portion 261, so that even if the body knob piece 30 protrudes from the corner cut portion 261, it is not visible in plan view. The shape of the packaging container 1 can be maintained in a substantially rectangular shape. Similarly, by forming the accommodating part 29 at a position corresponding to the corner cutout part 261, even if a part of the lid knob piece 14 protrudes from the accommodating part 29, the shape of the packaging container 1 in a plan view can be maintained approximately. Can be maintained in a rectangular shape.

Further, the housing portions 29 are formed at positions facing each other diagonally. When the user removes the lid 10 from the container body 20, the user either pinches each of the lid knob pieces 14 housed in the two housing parts 29, or pinches either one of them. When removing the lid 10, each lid knob 14 or one of the lid knobs 14 must be pulled up, reducing the possibility that the lid 10 will tilt with respect to the opening surface of the container body 20. can. Therefore, the possibility that the lid 10 comes into contact with the object accommodated in the container body 20 can be reduced.

However, the accommodating portion 29 and the main body knob 30 may not be formed at the corner of the container main body 20. The accommodating portion 29 may be formed on a part of the short side or long side of the upper peripheral wall portion 24 and the flange portion 25. Similarly, the main body knob piece 30 may be formed on a part of the short side or long side of the main body outer edge portion 26. Moreover, the housing portion 29 and the main body knob piece 30 do not need to be formed so as to be located on the same straight line when viewed from above.

Furthermore, at least one accommodating portion 29 and at least one main body knob piece 30 may be formed. When a plurality of accommodating portions 29 are formed, the plurality of accommodating portions 29 do not need to be formed on the same straight line (for example, on a diagonal line). The same applies to the case where a plurality of body knob pieces 30 are formed.

[Lid body]
Reference numeral 1031 in FIG. 6 is a plan view of the lid body 10. As shown in FIG. Reference numeral 1032 in FIG. 6 is a side view of the lid 10 when viewed from the short side (a side view of the lid 10 when viewed from the viewing direction VD1). Reference numeral 1033 in FIG. 6 is a side view of the lid 10 when viewed from the long side (a side view of the lid 10 when viewed from the viewing direction VD2). Reference numeral 1022 in FIG. 5 is a plan view showing a corner of the lid 10. As shown in FIG.

As shown by reference numeral 1022 in FIGS. 6 and 5, the lid 10 includes a top plate 11, a lid side wall 12, an outer edge 13, and a lid knob 14. The lid body 10 has a rectangular outer shape in plan view. In this way, the lid 10 preferably has a shape that has the same external shape as the container main body 20 in plan view.

The top plate portion 11 is a plate-like member that is rectangular in plan view and has one surface. The shape of the top plate portion 11 is preferably a shape that has the same outer shape as the outer shape of the lid 10 and the container body 20 in a plan view. According to such a shape, when the top plate part 11 is made of a transparent member, it is easy to clearly see the stored items through the top plate part 11 from above the packaging container 1.

Although the number of surfaces constituting the top plate portion 11 is not particularly limited, it is preferably one. According to this, the visibility of the stored items can be ensured well, and when the packaging containers 1 are stacked on top of each other, the container main body 20 can be easily placed on the top plate part 11. Note that the top plate portion 11 may be configured with a plurality of surfaces.

The lid side wall 12 is a member that extends around the top plate 11 and extends toward the lid outer edge 13 located below the outer end of the top plate 11 . The lid side wall portion 12 is inclined outward from the top plate portion 11 toward the lid outer edge portion 13. Therefore, the area of the opening of the lid 10 formed inside the outer edge 13 of the lid is larger than the area of the top plate 11. However, the lid side wall portion 12 may not be inclined, and the lid side wall portion 12 may extend substantially perpendicularly from the top plate portion 11.

The lid outer edge 13 is an outer edge of the lid 10 that is continuous with the lower end of the lid side wall 12. The outer edge portion 13 of the lid body 10 is formed at a position that is paired with the formation position of the inner peripheral step portion 28 and the upper peripheral wall portion 24 in the container body 20. The lid outer edge portion 13 includes a lid bottom portion 131, a lid peripheral wall portion 132, and a lid eave portion 133.

The lid bottom 131 is a frame-shaped portion that constitutes the bottom of the lid 10. The lid bottom 131 is a surface that can come into contact with the inner circumferential step 28 when the lid 10 is fitted into the container body 20. The lid bottom 131 is a plane extending along a substantially horizontal plane. In this case, the inner circumferential stepped portion 28 can stably support the outer edge portion 13 of the lid body. However, the lid bottom 131 may be an inclined surface inclined from a substantially horizontal surface.

The lid peripheral wall portion 132 is a portion extending upward from the outer end of the lid bottom portion 131. As shown in FIG. 7, which will be described later, the lid peripheral wall 132 extends outward from the outer end of the lid bottom 131. However, the lid peripheral wall portion 132 may extend substantially perpendicularly to the lid bottom portion 131.

The lid eaves portion 133 is a plane extending from the outer end of the lid peripheral wall portion 132 along a substantially horizontal plane. The outer end of the lid eave 133 is a portion that can come into contact with the upper peripheral wall 24 when the lid 10 is fitted into the container body 20. When the lid 10 is fitted into the container body 20, the entire outer end of the lid eaves 133 may be in contact with the upper peripheral wall 24, or a portion of the outer end may be in contact with the upper peripheral wall 24. Good too.

The lid 10 and the container body 20 are designed such that the size of the lid outer edge 13 in plan view is approximately the same as the size of the upper peripheral wall 24 in plan view. “Substantially the same” is a concept that includes the same and differences that can be considered the same. That is, the lid 10 and the container body 20 are designed so that the outer end of the lid eave 133 and the upper peripheral wall 24 are in point contact with each other in a cut plane parallel to the substantially perpendicular surface of the packaging container 1. Ru. Further, the length of the lid peripheral wall portion 132 in the vertical direction is shorter than the length between the lid locking portion 27 and the inner peripheral stepped portion 28 of the container body 20.

Further, when the lid body 10 moves upward, the upper surface of the lid eaves part 133 comes into contact with the lid locking part 27. Therefore, the upward movement of the lid 10 is restricted by the lid latching portion 27 unless a force acting on the lid 10 is strong enough to move the lid 10 from the lower side to the upper side of the lid latching portion 27 . When the lid body 10 moves downward, the lower surface of the lid eaves portion 133 comes into contact with the inner circumferential step portion 28 . Therefore, the downward movement of the lid body 10 is restricted by the inner circumferential step portion 28.

Therefore, when an external force is applied to the lid 10, the lid 10 is moved inside the container body 20 while being allowed to move in the vertical direction between the lid locking portion 27 and the inner step 28. Fit together.

The lid knob piece 14 is a part that protrudes from a part of the outer edge 13 of the lid. The lid grip piece 14 is a portion that is gripped by a user who performs an operation to remove the lid 10 from the container body 20. The lid knob 14 is designed, for example, in consideration of the ease with which the lid knob 14 can be pinched and the difficulty in causing a collision between a hand or an object against the lid knob 14.

The lid knob piece 14 is formed in the lid 10 at a position that is paired with the formation position of the accommodating portion 29 in the container body 20. In this embodiment, the lid knob piece 14 is formed at a corner of the outer edge 13 of the lid. Therefore, the lid body knob piece 14 is located at a position corresponding to the corner cutout 261 in which the body body knob piece 30 is formed when the lid body 10 is fitted inside the container body 20.

The lid knob piece 14 includes a tongue piece 141 and a tip portion 142, as shown by reference numeral 1022 in FIG. The tongue piece 141 is a part that is pinched by the user. The tip portion 142 is a portion of the tongue 141 that is continuous with the tongue 141 at a position farthest from the position where the tongue 141 connects with the outer edge 13 of the lid body. The tip portion 142 is a portion that can protrude from the accommodating portion 29 when the lid 10 is fitted inside the container body 20.

[Change in the position of the lid in the container body]
FIG. 7 is a diagram for explaining a change in the position of the lid 10 in a state where the lid 10 is internally fitted into the container body 20. Reference numeral 1041 in FIG. 7 is a sectional view showing a state in which the outer edge 13 of the lid is not in contact with the inner step 28, and reference numeral 1042 in FIG. FIG. 3 is a cross-sectional view showing a state in which they are in contact.

When the user attempts to internally fit the lid 10 into the container body 20, the lower surface of the lid bottom 131 comes into contact with the lid locking portion 27. With the lid bottom 131 in contact with the lid locking portion 27, the lid 10 is pushed toward the container body 20, thereby temporarily deforming the shape of the lid 10. Therefore, the outer edge portion 13 of the lid body can move from the upper side to the lower side of the lid locking portion 27 while contacting the lid locking portion 27 . Therefore, the lid 10 can be internally fitted into the container body 20.

At this time, as shown by reference numeral 1041 in FIG. 7, a part of the lid knob piece 14 is accommodated in the accommodating part 29, and the other parts of the lid knob piece 14 are arranged in consideration of ease of picking. It protrudes from the housing portion 29. In addition, when the lid 10 is fitted into the container body 20, a part of the outer edge 13 of the lid in plan view is located between the lid locking part 27 and the inner step 28, and It is spaced apart from the circumferential step portion 28. Reference numeral 1041 in FIG. 7 indicates that a part of the lid bottom 131 in plan view is located at a distance DS1 from the inner circumferential step 28. As shown in FIG.

If the packaging container has a configuration in which the lid fits inside the container body, the outer edge of the container body fits into the outer edge of the lid (in a configuration in which the lid fits externally into the container body). ) The shape of the outer edge of the lid body can be simplified compared to the case of ). Therefore, in the case of the inner-fitting packaging container, a larger number of packaging containers can be manufactured per unit time than the outer-fitting packaging container, so the packaging container 1 can be manufactured at a lower cost.

However, in the case of the internal fitting form, a lid tab is formed on the packaging container to facilitate removal of the lid. A portion of the lid knob that protrudes from the packaging container (in the case of the packaging container 1, a portion of the lid knob 14 that protrudes from the accommodating portion 29) is designed to allow the user to remove the lid from the container body. There is a possibility that the user's hand may touch it even though it is not intended. In addition, the protruding portion is easily touched by articles and the like. In this manner, when a hand or an article or the like touches the protruding portion, the protruding portion receives a downward external force.

If the lid is internally fitted to the container body so that it does not move vertically relative to the container body (if the lid is internally fitted and fixed to the container body), the lid can be deformed by an external force applied to the protruding portion. This deformation of the lid may cause damage to the lid itself.

Moreover, after the packaging container has contained an object such as food, it is wrapped with a wrapping material such as a wrap to prevent the object from leaking out from the gap between the lid and the container body. The packaged item is packaged in a packaging container along the shape of the packaging container. Alternatively, the lid and the container body are fixed with a fixing object such as tape. If the lid is fixed to the container body while being fitted inside the container body, there is a risk that the package or the fixed object may be damaged due to deformation of the lid.

In the packaging container 1, as shown by reference numeral 1042 in FIG. 13 can be moved toward the inner circumferential step portion 28 side. That is, the lid 10 can be sunk in while maintaining the state in which the lid 10 is fitted into the container main body 20. Since this movement (sinking) absorbs the external force acting on the protruding portion, the degree of deformation of the lid body 10 due to the external force can be reduced.

Therefore, in the packaging container 1 of the internal fitting type that can be manufactured at low cost, by making a part of the lid knob piece 14 protrude, the lid knob piece 14 can be easily pinched while still being able to handle packaged items and fixed objects. Alternatively, the possibility that the packaging container 1 will be damaged can be reduced. That is, in the internally-fitting packaging container 1, the possibility of damage to the package, the fixed object, or the packaging container 1 can be reduced while maintaining the ease of removing the lid 10.

In this way, the possibility of the above-mentioned damage occurring in the packaging container 1 can be reduced, and therefore the amount of packaging containers 1 discarded due to the above-mentioned damage can be reduced. In addition, when objects are stored in the packaging container 1, the amount of waste of the objects due to the damage described above can be reduced. Therefore, it can contribute to the achievement of Sustainable Development Goals (SDGs) such as Goal 12 "Responsible Production and Consumption" and Goal 14 "Protect the Richness of the Oceans."

Furthermore, by forming the lid locking portion 27 and the inner circumferential step portion 28 apart from each other, when the lid 10 is fitted into the container body 20, a part of the outer edge portion 13 of the lid in a plan view is It can be moved in the vertical direction between the lid locking part 27 and the inner peripheral step part 28. Therefore, the capacity of the packaging container 1 can be increased, and the possibility that the objects contained in the packaging container 1 will adhere to the lid 10 and spoil the aesthetic appearance of the packaging container 1 can be reduced.

Further, as shown by reference numeral 1042 in FIG. 7, the protruding portion of the lid knob 14 moves toward the accommodating portion 29 when an external force is applied. At this time, a part of the outer edge part 13 of the lid body that is spaced apart from the inner circumferential step part 28 moves downward and comes into contact with the inner circumferential step part 28, thereby being supported by the inner circumferential step part 28.

Therefore, a portion of the outer edge portion 13 of the lid body can move toward the inner circumferential step portion 28 (downward) until it is supported by the inner circumferential step portion 28. Therefore, the external force applied to the protruding portion until the entire outer edge portion 13 of the lid body is supported by the inner circumferential step portion 28 is applied to the portion of the outer edge portion 13 of the lid body that is spaced apart from the inner circumferential step portion 28. , it can be absorbed by movement (sinking of the lid 10) until it comes into contact with the inner circumferential step 28. Further, a portion of the outer edge portion 13 of the lid body is restricted from moving downward from the inner circumferential step portion 28 by the inner circumferential step portion 28 . Therefore, by moving a portion of the outer edge portion 13 of the lid body downward, it is possible to reduce the possibility that the object contained in the packaging container 1 will adhere to the lid body 10.

In this embodiment, the accommodating portion 29 is formed at a position corresponding to the corner cut portion 261. In this case, when the lid 10 is fitted inside the container body 20, the lid knob 14 tends to protrude from the packaging container 1 when viewed from above. Therefore, the lid knob piece 14 is easily subjected to external force. In the packaging container 1, when the lid knob piece 14 is subjected to an external force, a part of the lid outer edge 13 that is separated from the inner step 28 moves downward, thereby absorbing the external force. It can be absorbed. Therefore, even if the accommodating portion 29 is formed at a position corresponding to the corner cut portion 261, the possibility of damage to the packaged object, fixed object, or packaging container 1 can be reduced.

When a part of the outer edge part 13 of the lid body is separated from the inner circumferential step part 28 in a plan view, another part of the outer edge part 13 of the cover body may be in contact with the inner circumferential step part 28 . On the other hand, the entire outer edge portion 13 of the lid body may be spaced apart from the inner circumferential step portion 28 in a plan view. The portion of the outer edge portion 13 of the lid body that is spaced apart from the inner circumferential step portion 28 may be at least a part of the outer edge portion 13 of the lid body in a plan view.

Further, in a state in which the lid body 10 is internally fitted into the container body 20, at least a portion of the lid eaves portion 133 in plan view may be locked by the lid locking portion 27. Due to the locking of the lid eaves part 133 by the lid locking part 27, the lid 10 remains fitted into the container body 20 until a force capable of removing the lid 10 is applied to the lid 10. can.

In this embodiment, the protruding portion of the lid knob piece 14 is the tip portion 142 of the lid knob piece 14 . The smaller the protruding portion is, the smaller the portion of the lid knob piece 14 on which external force acts can be made. When the protruding portion is the tip portion 142, damage to the package, fixed object, or packaging container 1 is more likely than when the tongue piece 141 of the lid knob 14 protrudes from the storage portion 29 in addition to the tip portion 142. The occurrence of this can be further reduced.

As shown by reference numeral 1042 in FIG. 7, the entire lid knob 14 may be accommodated in the accommodating portion 29 in a state in which the lid bottom portion 131 is in contact with the inner circumferential step portion 28. That is, the moving distance of the lid outer edge portion 13 in the vertical direction may be determined such that the entire lid knob piece 14 can be accommodated in the housing portion 29 . In this case, the external force acting on the lid knob 14 until the entire lid knob 14 is accommodated in the storage portion 29 can be absorbed by the downward movement of the lid outer edge 13. However, the entire lid knob piece 14 does not have to be accommodated in the housing portion 29. It is only necessary that a part of the lid knob piece 14 can be moved toward the accommodating portion 29 side when the lid knob piece 14 is subjected to an external force.

When the lid 10 is removed from the container body 20, the lid 10 is lifted upward from the state in which the top surface of the lid eaves part 133 is locked (in contact with) the lid locking part 27. The shape of is temporarily deformed. Therefore, the lid outer edge 13 can move from the lower side of the lid locking part 27 to the upper side while contacting the lid locking part 27. Therefore, the lid 10 can be removed from the container body 20.

[Positional relationship between the lid knob piece and the main body knob piece]
FIG. 8 is a diagram showing the positional relationship between the lid knob piece 14 and the main body knob piece 30 in a state where the lid body 10 is internally fitted into the container body 20. Reference numeral 1051 in FIG. 8 is a perspective view of the packaging container 1 at the corner cutout 261. Reference numeral 1052 in FIG. 8 is a plan view of the packaging container 1 at the corner cut portion 261. As shown in FIG.

Reference numeral 1061 in FIG. 9 is a schematic diagram showing the positional relationship between the lid knob piece 14 and the main body knob piece 30 in the packaging container 1. As shown in FIG. Reference numeral 1062 in FIG. 9 is a schematic diagram showing the positional relationship between the lid knob piece 14 and the main body knob piece 30 in the packaging container 101 as a comparative example. FIG. 9 schematically shows cross sections of the lid knob 14 and the main body knob 30 when viewed from the horizontal direction.

As shown in FIG. 8, the main body knob piece 30 is located outside the lid body knob piece 14 in a state where the lid body 10 is internally fitted into the container body 20. The positions of the accommodating portion 29 and the main body knob 30 in the container main body 20 are defined so as to have such a positional relationship.

As described above, the packaging container 1 is wrapped with a wrapping material along the shape of the packaging container 1. At this time, the package abuts at least a portion of the outer edge 301 of the main body knob 30 and at least a portion of the outer edge 143 of the lid knob 14 (including the tip portion 142). In this state, the packaging container 1 is packaged.

As shown by reference numeral 1062 in FIG. 9, in the case of the packaging container 101 in which the entire body knob 30 is not located outside the lid knob 14, the tension generated in the package 500 is concentrated on the lid knob 14. It's easy to do. As shown by reference numeral 1061 in FIG. 9, in the packaging container 1 in which the entire main body knob 30 is located outside the lid knob 14, the packaged object 500 is located on the lid knob 14 compared to the packaging container 101. The formed angle α can be increased. Therefore, by distributing the tension generated in the package 500 to the main body knob 30, the tension of the package 500 in the lid body knob 14 can be reduced.

Further, in FIG. 9, the package 500 located between the lid knob piece 14 and the main body knob piece 30 in the packaging container 1 is longer than the corresponding package 500 in the packaging container 101. That is, the area of the package 500 located between the lid knob piece 14 and the main body knob piece 30 in the packaging container 1 is larger than the area of the corresponding package 500 in the packaging container 101. The larger the area of the package 500, the smaller the tension of the package 500 that occurs in the lid knob 14 and the main body knob 30 tends to be.

Therefore, in the packaging container 1, when an external force acts on the lid knob 14 from above the package 500, the package 500 easily absorbs the external force. Therefore, external force can be easily dispersed within the plane of the package 500.

In this manner, in the packaging container 1, the external force can be absorbed by the lid outer edge 13 being able to move toward the inner circumferential stepped portion 28, and the positional relationship between the lid knob 14 and the main body knob 30 allows The above external force can be absorbed and dispersed. Therefore, the possibility that the package 500 or the packaging container 1 will be damaged can be further reduced.

In this embodiment, the entire main body knob 30 is located outside the lid knob 14, but at least a portion of the main body knob 30 only needs to be located outside the lid knob 14. Even in this case, the tension of the package 500 in the lid knob 14 and the main body knob 30 can be made smaller than in the case of the packaging container 101 (see reference numeral 1062 in FIG. 9), so that the external force can be reduced. It can be dispersed within 500 planes.

Further, in this embodiment, as shown by reference numeral 1052 in FIG. 8, the size of the main body knob piece 30 is larger than the lid body knob piece 14. In this case, since the main body knob 30, which is larger than the lid knob 14, is located outside the lid knob 14, the angle formed by the package 500 on the entire outer edge 143 of the lid is increased. can. Furthermore, the area of the package 500 located between the lid knob piece 14 and the main body knob piece 30 can be increased compared to the case where the body knob piece 30 is the same size as the lid body knob piece 14. Therefore, the tension of the package 500 in the lid knob 14 and the main body knob 30 can be reduced. Therefore, it is easier to disperse the external force.

Further, in this embodiment, as shown by reference numeral 1051 in FIG. There is. That is, in a state where the lid body 10 is internally fitted into the container body 20, the lid body knob piece 14 and the body body knob piece 30 are separated from each other. The positions of the accommodating portion 29 and the main body knob 30 in the container main body 20 are defined so as to have such a positional relationship.

The farther apart the lid knob piece 14 and the main body knob piece 30 are, the larger the area of the package 500 located between the lid knob piece 14 and the main body knob piece 30 can be. Therefore, compared to the case where the protruding portion of the lid knob 14 protruding from the housing portion 29 and the outer edge 301 of the main body piece are approximately the same in the vertical direction, the lid knob 14 and the main body The tension of the package 500 on the pick piece 30 can be reduced. That is, compared to the case where the height of the part of the lid body knob 14 that the package 500 comes into contact with and the part of the main body knob 30 that the package 500 comes into contact with are approximately the same height, the tension of the package 500 is reduced. Can be made smaller.

In the present embodiment, the body knob piece 30 is formed at the lower end of the body outer edge 26 (specifically, the corner cutout 261); It may be formed at the boundary portion with the flange portion 25). Even in this case, since the main body knob 30 is located lower than the protruding portion of the lid body knob 14, the tension of the package 500 can be reduced.

Therefore, "the body knob 30 is located lower than the lid knob 14" means that when the lid 10 is fitted into the container body 20, the outer edge 301 of the body knob is located lower than the lid knob 14. This includes the concept of being located lower than the 14 protruding portions. That is, this includes the concept that the portion of the main body knob 30 that the package 500 comes into contact with is located lower than the portion of the lid body knob 14 that the package 500 comes into contact with.

Further, as shown by reference numeral 1051 in FIG. 8, the extending direction of the main body knob 30 (first extending direction DR1) and the extending direction of the inclined surface 291 of the accommodating portion 29 (second extending direction DR2). are different from each other, and are spaced apart from each other as they move away from the packaging container 1. In this embodiment, the angle of inclination of the inclined surface 291 with respect to the horizontal plane is larger than the angle of inclination of the main body knob piece 30 with respect to the horizontal plane. Specifically, the main body knob 30 extends along a substantially horizontal plane, and the inclined surface 291 slopes upward toward the outside.

When the main body knob 30 and the inclined surface 291 extend outward and away from each other, the lid body knob 14 and the main body knob 30 can be separated from each other. Specifically, the portion of the lid body knob 14 that the package 500 contacts can be separated from the portion of the main body knob 30 that the package 500 contacts. Therefore, compared to the case where the first extending direction DR1 and the second extending direction DR2 are substantially the same direction, or when they approach each other as they move away from the packaging container 1, the lid knob piece 14 and the main body knob The area of the package 500 between the piece 30 can be increased. Therefore, the tension of the package 500 can be reduced.

Further, in this embodiment, the main body knob piece 30 protrudes from the corner cutout 261. In this embodiment, since the accommodating part 29 is formed at a position corresponding to the corner cutout 261, the lid knob piece 14 accommodated in the accommodating part 29 is easily subjected to the action of external force. By forming the main body knob 30 at a position corresponding to the accommodating portion 29, external force acting on the lid body knob 14 can be effectively dispersed.

In the case where the lid 10 and the container body 20 are fixed by a fixed object instead of the package 500, the package 500 can be read as the fixed object. That is, due to the positional relationship between the lid knob 14 and the main body knob 30 described above, the external force acting on the lid knob 14 can be dispersed within the plane of the fixed object.

[Additional notes]
The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention.

1 Packaging container 10 Lid body 13 Lid outer edge part 14 Lid body knob piece 141 Tongue piece 142 Tip part 20 Container body 25 Flange part 26 Body outer edge part 261 Corner cut part 27 Lid locking part 28 Inner peripheral step part 29 Accommodation part 293 Top 30 Main body knob DR1 First extending direction (extending direction of main body knob)
DR2 Second extension direction (extension direction of the inclined surface of the housing part)

Claims (5)

A packaging container comprising a container body and a lid that fits inside the container body,
The lid has a lid knob protruding from a part of the outer edge of the lid,
The container body is
a lid locking portion located inside the flange portion of the container body and capable of locking the outer edge of the lid body from above;
an inner circumferential step part located inside the flange part and below the lid locking part and capable of supporting the outer edge part of the lid body from below;
an accommodating portion for accommodating the lid body knob while slanting it outward at an upward slope;
At least a portion of the outer edge of the lid is connected to the lid locking portion in a state where the lid is internally fitted into the container body and a portion of the lid knob is accommodated in the accommodating portion. A packaging container located between and spaced apart from at least the inner circumferential step. At least a portion of the outer edge of the lid body that is spaced apart from the inner circumferential step portion is such that the protruding portion moves toward the housing portion due to the action of an external force on the protruding portion of the lid knob that protrudes from the housing portion. The packaging container according to claim 1, wherein the packaging container is supported by the inner circumferential step by moving downward and coming into contact with the inner circumferential step when moved. The packaging container according to claim 1, wherein the protruding portion of the lid knob that protrudes from the accommodating portion is a tip portion of the lid knob excluding the tongue piece. The packaging container according to claim 1, wherein the top of the accommodating portion is a part of the flange. The container body has a corner cutout at at least one of the four corners of the container body,
The packaging container according to claim 1, wherein the accommodating portion is formed at a position corresponding to the corner cut portion.

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