JP7166027B2 - packaging container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a packaging container capable of containing food and the like.

2. Description of the Related Art Conventionally, various foodstuffs such as box lunches and side dishes have been sold in packaging containers at various stores that sell take-out foods. In such a packaging container, the shape of the lid may differ depending on the stored items such as foodstuffs.

For example, Patent Literature 1 discloses a container that includes a container body, a middle plate, and a lid, and that the lid covers the middle plate and the container body with the middle plate placed on the container body. there is Further, Patent Literature 2 discloses a packaging container in which a lid is fitted to a raised surface formed inside a container body.

JP 2015-145285 A JP-A-2000-302150

As described in Patent Literatures 1 and 2, conventionally known containers have lids that fit on either the inside or the outside of the container body. However, container bodies having different shapes have been used depending on whether the lid body is fitted to the inside of the container body or the lid body is fitted to the outside of the container body.

An object of one aspect of the present invention is to realize a packaging container in which a lid can be fitted to both the inside and the outside of a container body.

A packaging container according to one aspect of the present invention comprises
A packaging container which includes a container body, and which can be fitted with a first lid that is internally fitted to the container body from the inside and a second lid that is externally fitted to the container body from the outside. ,
the second lid;
a middle plate disposed between the container body and the second lid,
The container body is
a main body peripheral wall extending upward from the bottom surface;
a main body flange portion extending outward from the main body peripheral wall portion;
The bottom portion is composed of a main body placement portion and a main body leg portion,
The main body placing portion is formed in a flat plate shape on which the object to be accommodated is placed,
The main body leg surrounds the main body mounting portion in a plan view and protrudes downward,
The body flange portion is
Including an inner peripheral flange portion formed on the inner peripheral side and an outer peripheral flange portion formed on the outer peripheral side,
a height from the contact surface of the bottom surface portion to the upper surface of the inner peripheral flange portion is higher than a height from the contact surface to the upper surface of the outer peripheral flange portion;
an inner side wall that extends downward from the upper surface of the inner peripheral flange portion toward the main body peripheral wall portion and that can be internally fitted with the first lid by an inner surface thereof; and from the inner peripheral flange portion toward the outer peripheral flange portion. an outer side wall extending downward; and an outer edge end portion extending outward from the outer peripheral flange portion and capable of being externally fitted with the second lid body;
A step is formed between the upper surface of the outer peripheral flange portion and the upper surface of the inner peripheral flange portion,
The middle plate is
a middle plate peripheral wall portion forming the outer periphery of the middle plate; and a middle plate edge portion extending outward from a lower end of the middle plate peripheral wall portion;
The edge of the inner plate is placed on the upper surface of the outer peripheral flange,
The middle plate peripheral wall portion is formed with a middle plate convex portion that protrudes upward,
The second lid body is formed with a lid recess that is recessed upward and that accommodates and locks at least a part of the middle tray protrusion,
The lid concave portion and the middle plate convex portion are formed at a position higher than the upper surface of the inner peripheral flange portion,
In a state where the middle plate is arranged between the container body and the second lid body, when the second lid body is fitted to the container body from the outside, at least a part of the middle plate convex portion is accommodated in the lid recess, and the lower end of the inner plate peripheral wall portion abuts against the step, thereby restricting the inner plate from moving inwardly of the outer peripheral flange portion.

According to the above configuration, the container main body has the main body flange portion including the inner peripheral flange portion and the outer peripheral flange portion. The height from the contact surface of the bottom surface of the container body to the upper surface of the inner peripheral flange is higher than the height to the upper surface of the outer peripheral flange. By forming the inner peripheral flange portion at a position higher than the outer peripheral flange portion in this way, it becomes easy to design to ensure a large inner surface area of the inner side wall extending from the inner peripheral flange portion toward the main body peripheral wall portion. . Therefore, in the container body, it is possible to easily form an inner side wall capable of firmly fitting the first lid.

Moreover, since the height of the upper surface of the inner peripheral flange portion is higher than the height of the upper surface of the outer peripheral flange portion, a step is formed between the upper surface of the outer peripheral flange portion and the upper surface of the inner peripheral flange portion. Therefore, when the packaging container further includes a member placed on the upper surface of the outer peripheral flange portion, even if an external force acts on the member, it is possible to prevent the member from moving inward from the outer peripheral flange portion. Therefore, such a member can be stably placed on the outer peripheral flange portion. Such a member includes, for example, an inner plate.

The body flange also has an outer edge extending outwardly from the outer peripheral flange. The outer edge portion is covered with the second lid from the outside so that it can be externally fitted with the second lid. Since the container body also has an inner side wall into which the first lid body can be fitted, the first lid body shaped to fit inside the container body and the second lid body shaped to fit outside are arranged. , any lid can be fitted. As a result, even if it becomes necessary to adopt lids having different shapes depending on the type of the object to be contained in the packaging container, there is no need to change the container body.

Further, according to the above configuration, the body flange portion has an outer side wall between the inner peripheral flange portion and the outer peripheral flange portion. Since the area of the outer surface of the outer side wall is smaller than the area of the inner surface of the inner side wall, the portion of the second lid that can be externally fitted to the container body and is externally fitted to the body flange portion can be formed small. Therefore, it is possible to reduce the manufacturing cost of the second lid body that can be externally fitted to the container body, and it becomes easy to arrange the appearance of the packaging container provided with such a lid body.

Moreover, according to the above configuration, the packaging container further includes the second lid and the inner plate. The middle plate includes a middle plate edge portion placed on the upper surface of the outer peripheral flange portion. By placing the inner plate on the upper surface of the outer peripheral flange portion in this way, even if an external force is applied to the inner plate, it is possible to prevent the inner plate from moving inward from the outer peripheral flange portion. Further, the container main body can be externally fitted with the second lid by the outer edge portion formed on the outside of the outer peripheral flange portion. Therefore, the second lid body can be externally fitted in a state in which the inner plate is placed on the upper surface of the outer peripheral flange portion.

Further, according to the above configuration, the middle plate has the middle plate convex portion formed on the inner plate peripheral wall portion, and the lid body concave portion is formed in the second lid body. The lid concave portion accommodates and locks the middle plate convex portion. Therefore, the middle plate and the second lid body mutually restrict positional displacement due to external force.

Moreover, both the lid concave portion and the middle plate convex portion are formed at positions higher than the upper surface of the inner peripheral flange portion. Here, the second cover body is externally fitted to the outer edge of the container body and locked to the middle plate convex portion of the middle plate. The inner plate is stably placed on the upper surface of the outer peripheral flange portion and is engaged with the lid concave portion of the second lid. In this way, the movement of both the second lid body and the inner plate is restricted at two points at different positions, so that the positions of the members of the packaging container are very difficult to shift, and the packaging container is stable. can contain objects.

ADVANTAGE OF THE INVENTION According to one aspect of the present invention, it is possible to realize a packaging container in which the lid can be fitted to both the inside and the outside of the container body.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the external appearance of the packaging container which concerns on one Embodiment of this invention. FIG. 2 is a side view showing the appearance of the packaging container shown in FIG. 1; FIG. 3 is a side view showing the appearance from a direction different from that of the packaging container shown in FIG. 2; FIG. 2 is a cross-sectional view taken along line IV-IV of the packaging container shown in FIG. 1; FIG. 2 is a cross-sectional view taken along line IV-IV, showing a state in which a container body is stacked on top of the packaging container shown in FIG. 1; Reference numeral 601 is a plan view of the container main body shown in FIG. Reference numeral 602 is a cross-sectional view of the container body shown in FIG. 1 taken along line IV-IV. Fig. 5 is an enlarged cross-sectional view showing the periphery of the body flange portion of the packaging container shown in Fig. 4; Reference numeral 801 is a cross-sectional view taken along line IV-IV in a modification of the packaging container shown in FIG. Reference numeral 802 is an enlarged cross-sectional view showing the periphery of the body flange portion in the modification of the packaging container shown in FIG. Reference numeral 901 is a plan view of the inner plate shown in FIG. Reference numeral 902 is a cross-sectional view taken along line IX-IX of the plan view. Reference numeral 1001 is a plan view of the lid shown in FIG. Reference numeral 1002 is a cross-sectional view taken along line XX of the plan view. Reference numeral 1101 is a plan view of the packaging container shown in FIG. Reference numeral 1102 is an enlarged view showing the periphery of the open lid portion of the plan view. A reference numeral 1201 is a schematic diagram showing an outer knob and a storage portion in the knob constituting the opening portion shown in FIG. 11 . A reference numeral 1202 is a schematic diagram showing an outer receiving piece and a raised portion of the receiving piece that constitutes the opening portion shown in FIG. 11 . A reference numeral 1203 is a schematic diagram showing the overlap between the outer receiving piece and the outer knob and the mode of the position setting part in the lid opening part in the normal mode. Numeral 1301 is a schematic diagram showing each aspect of the outer receiving piece and the outer knob when the raised portion is not accommodated in the accommodating portion. Reference numeral 1302 is a schematic diagram showing each aspect of the raised portion and the accommodating portion in a state in which the outer receiving piece and the outer knob are substantially overlapped.

An embodiment of the present invention will be described with reference to FIGS. 1-13. In the present embodiment, as a packaging container according to one aspect of the present invention, a food packaging container that accommodates foodstuffs such as box lunches and side dishes will be described as an example. However, the items to be stored in the packaging container according to one aspect of the present invention are not limited to foodstuffs.

[Overview of packaging container]
An overview of a packaging container 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. As shown in FIGS. 1 to 5, the packaging container 1 includes a container body 2, an inner plate 3, and a lid 4 (second lid).

In this embodiment, the container body 2, the inner plate 3, and the lid 4 are each formed by thermoforming a resin sheet having a sheet thickness of 0.1 mm to 4 mm, preferably 0.15 mm to 2.5 mm. . Examples of thermoforming methods include vacuum forming, thick air forming, vacuum pressure forming, and hot plate forming. The sheet thicknesses of the container body 2, the inner plate 3 and the lid 4 may be different within the range of 0.1 mm to 4 mm.

As the resin sheet, a thermoplastic resin sheet such as a polyolefin resin sheet, a polystyrene resin sheet, a polyester resin sheet, or the like can be used. These resin sheets may be foamed sheets or non-foamed sheets. A laminated sheet can also be used as the resin sheet. As the laminated sheet, for example, a film-laminated foamed sheet obtained by laminating a film on a foamed sheet, a co-extruded laminated sheet, or an extruded laminated sheet can be used. In this embodiment, the container body 2 is made of a foamed sheet, and the inner plate 3 and the lid 4 are made of a non-foamed sheet.

In this embodiment, the container body 2 is monochromatic white, the inner plate 3 is monochromatic black, and the lid 4 is colorless and transparent. However, the colors of the container body 2, the inner plate 3 and the lid 4 are not limited to these, and may be any color. For example, the container body 2 may have a base color of black, and at least a portion of the container body 2 may have a pattern of gold, red, or the like.

(container body)
The container main body 2 is a constituent part of the packaging container 1 capable of accommodating an object. The container body 2 has a perfect circular outer shape in plan view. Here, the “perfect circular shape” means a shape that can be regarded as a perfect circular shape when the container body 2 is viewed as a whole, that is, a substantially perfect circular shape. Therefore, for example, a portion of the peripheral edge of the container body 2 may be formed with a projecting portion, or may include a portion forming a straight side. This applies to shapes other than a perfect circle (for example, a square shape), and also to the shapes when each part (described later) constituting the packaging container 1 is viewed from all directions.

The container body 2 has a body bottom portion 21 (bottom portion), a body peripheral wall portion 22, and a body flange portion 23, as shown in FIG. The main body bottom portion 21 constitutes the bottom portion of the container main body 2 . The main body peripheral wall portion 22 is a frame-shaped portion extending upward from the main body bottom surface portion 21 and forming the peripheral wall of the container body 2 . The main body flange portion 23 is a portion formed extending outward from the peripheral edge of the main body peripheral wall portion 22 .

(medium plate)
The middle plate 3 is a component of the packaging container 1 capable of accommodating an object different from the object contained in the container body 2 . Of course, the inner plate 3 may contain the same object as that contained in the container body 2 . The inner plate 3 is arranged between the container body 2 and the lid 4, and has a perfect circular outer shape in plan view. As shown in FIG. 4, the middle plate 3 includes a middle plate bottom portion 31, an inner peripheral wall portion 33, a middle plate flange portion 35 (middle plate convex portion), an outer peripheral wall portion 36 (middle plate peripheral wall portion), and an inner plate edge portion 37 .

The inner plate bottom portion 31 constitutes the bottom portion of the inner plate 3 . An object to be stored in the middle plate 3 is placed on the mounting surface 31a of the bottom surface portion 31 of the middle plate. An intermediate plate leg portion 32 is formed on the intermediate plate bottom portion 31 . The inner plate leg portion 32 is formed on the peripheral edge of the inner plate bottom portion 31 in plan view so as to protrude downward from the packaging container 1 .

The inner peripheral wall portion 33 is a frame-shaped portion that forms a recess for accommodating the inner plate 3 together with the inner plate bottom surface portion 31 , and is arranged inside the outer peripheral wall portion 36 . The inner peripheral wall portion 33 extends upward from the side edge of the inner plate bottom portion 31 , specifically, the upper end of the outer end portion of the inner plate leg portion 32 . The middle plate flange portion 35 is a projection-like portion formed above the upper end along the peripheral edge of the upper end of the inner peripheral wall portion 33 and whose top surface protrudes upward. The intermediate plate flange portion 35 is connected to the inner peripheral wall portion 33 via an intermediate plate stepped portion 34 having a stepped shape in a side view. The intermediate plate stepped portion 34 has a stepped shape such that the intermediate plate flange portion 35 is arranged outside the inner peripheral wall portion 33 .

The outer peripheral wall portion 36 is a portion that forms the outer periphery of the inner plate 3 . The outer peripheral wall portion 36 is formed extending downward from the outer end of the intermediate plate flange portion 35 . The middle plate end edge portion 37 is a frame-shaped portion that extends outward from the lower end of the outer peripheral wall portion 36 along the periphery of the lower end, and is placed on the upper surface of the body flange portion 23 of the container body 2 . A part of the lower end of the outer peripheral wall portion 36, more specifically, a part of the tip of the inner plate edge portion 37, is formed with a receiving piece 38 extending outward (see FIGS. 9 and 11). . Details of the receiving piece 38 will be described later.

(Lid body)
The lid 4 is a component of the packaging container 1 that covers the container body 2 and the inner plate 3 from above. The lid 4 has a perfect circular outer shape in a plan view, and is externally fitted to the container body 2 . The term “outer fitting” refers to fitting in which a portion of the container body 2 is fitted into the lid 4, and the outer surface side portion of the container body 2 and the inner surface side portion of the lid 4 contact and fit. Aspects are shown.

The lid 4 has a top surface portion 41 , a lid peripheral wall portion 44 , and an outer fitting portion 45 , as shown in FIG. 4 . The top surface portion 41 is a portion that constitutes the top surface of the lid 4 . An inner portion 41-1 including the central portion of the top surface portion 41 protrudes higher than other portions. As shown in FIG. 5, the inner portion 41-1 of the top surface 41 corresponds to the shape and size of the space surrounded by the main body placement portion 21a and the main body leg portions 21b of the container body 2. As shown in FIG. As a result, when the container body 2 is placed on the top surface portion 41, the inner portion 41-1 of the top surface portion 41 fits into the above-described space, so that the container body 2 can be stably stacked on the lid member 4. FIG.

Further, the top surface portion 41 is formed with a hole 41a as shown in FIGS. The hole 41a is a hole for releasing the steam generated from the object in the middle plate 3 to the outside. Here, in the top surface portion 41, a step is formed between an inner portion 41-1 of the top surface portion 41 and a surrounding portion 41-2 (hereinafter referred to as "surrounding portion 41-2"). When the container body 2 is placed on the top panel 41, a gap is formed between the ground surface 21b1 of the body leg 21b and the peripheral portion 41-2 of the top panel 41 as shown in FIG. As a result, even when the container body 2 is placed on the top surface portion 41, the steam in the inner plate 3 can escape to the outside through the above-described gap through the holes 41a.

In this embodiment, the holes 41a are formed on the center line (not shown) of the top surface portion 41 in a plan view and at both ends of the inner portion. Although there is no particular limitation on the number of holes 41a and the locations where the holes 41a are formed, even when the container body 2 is placed on the top surface portion 41, from the viewpoint of facilitating the escape of the steam in the middle plate 3 through the holes 41a, the holes 41a of the present embodiment are provided. Such formation locations are preferable.

As shown in FIG. 4 , a lid concave portion 43 is formed along the entire periphery of the top surface portion 41 . The lid concave portion 43 is formed so as to be recessed upward, accommodates the intermediate plate flange portion 35 of the intermediate plate 3 and locks the intermediate plate flange portion 35 . A depression 42 is formed inside the lid recess 43 along the inner circumference of the lid recess 43 . The recessed portion 42 is recessed so as to be concave downward.

The lid peripheral wall portion 44 is a frame-shaped portion that extends downward from the peripheral edge of the top surface portion 41 , specifically, the lower end of the outer end portion of the lid concave portion 43 and forms the peripheral wall of the lid 4 . The outer fitting portion 45 is a frame-shaped portion extending downward from the lower end of the lid peripheral wall portion 44 . The external fitting portion 45 externally fits the body flange portion 23 of the container body 2 by covering the body flange portion 23 of the container body 2 from the outside. A knob portion 46 is formed to protrude outward from a portion of the lower end of the lid peripheral wall portion 44 (see FIGS. 10 and 11). Details of the knob portion 46 will be described later.

[Peripheral structure of main body flange]
The body flange portion 23 of the container body 2 will be described in detail with reference to FIGS. 6 to 8. FIG. Since the container body 2 has a body flange portion 23, a lid body 4-2 (first lid body) that fits inside the container body 2 from the inside and a lid body 4 that fits from the outside of the container body 2. , and can be fitted with each of them. "Inner fitting" means that a part of the lid 4-2 is fitted into the container body 2, and the outer surface side portion of the lid body 4-2 and the inner surface side portion of the container body 2 contact and fit. Fig. 2 shows a mating mode for matching. That is, the container body 2 is configured so that both the lid body 4 having a shape that can be fitted outside and the lid body 4-2 that has a shape that can be fitted inside the container body 2 can be fitted.

(bottom part and body wall part)
As shown in FIGS. 6 and 7, in the container body 2, the body bottom portion 21 is composed of a body mounting portion 21a and body leg portions 21b. The main body placement portion 21a is a flat plate-shaped portion of the main body bottom portion 21, and an object to be accommodated is placed thereon. The main body leg portion 21b surrounds the main body mounting portion 21a in a plan view and protrudes downward.

The body leg portion 21 b includes the ground surface 21 b 1 of the container body 2 . Since the main body bottom surface portion 21 has the main body leg portions 21b, the area of the ground contact surface 21b1 of the container main body 2 can be reduced. Therefore, if the object housed in the container body 2 is warmer or cooler than the temperature of the portion in contact with the ground surface 21b1, the object is less likely to be affected by the temperature of the portion in contact with the ground surface 21b1. . The portion with which the ground surface 21b1 contacts is, for example, the top surface portion of the table on which the packaging container 1 is placed.

Further, when two packaging containers 1 are stacked, the portion of the upper packaging container 1 with which the ground surface 21b1 contacts can be the top surface portion 41 of the lid 4 of the lower packaging container 1 . At this time, for example, when the lower packaging container 1 accommodates a hot bowl of rice and the upper packaging container 1 accommodates a cold salad, if the area of the ground plane 21b1 is small, the effect of the temperature on the contents is can be minimized from each other.

Further, the main body leg portion 21 b protrudes downward from the main body bottom portion 21 . Therefore, when stacking a plurality of container bodies 2 during storage of the container bodies 2, the positions of the respective container bodies 2 are easily determined. Therefore, a plurality of container bodies 2 can be stably stacked.

In the container body 2, the body peripheral wall portion 22 is composed of a first peripheral wall portion 22a and a second peripheral wall portion 22b. The first peripheral wall portion 22 a extends upward from the outer end of the main body bottom surface portion 21 and constitutes the main portion of the main body peripheral wall portion 22 . The second peripheral wall portion 22b is a portion that extends upward from the first peripheral wall portion 22a via a step to the outside. Thus, the body peripheral wall portion 22 has a step formed between the first peripheral wall portion 22a and the second peripheral wall portion 22b. The step can be used, for example, as a mark for the amount of objects to be stored in the container body 2 .

Further, in plan view, the area surrounded by the second peripheral wall portion 22b has a larger area than the area surrounded by the first peripheral wall portion 22a. Accordingly, by forming a space surrounded by the second peripheral wall portion 22b in the accommodation space inside the container body 2, a large volume of the accommodation space can be secured. Therefore, for example, when an object to be contained in the inner tray 3 is transferred to the container body 2 , the object to be contained can be prevented from overflowing from the container body 2 .

(Body flange)
In the container body 2, the body flange portion 23 is composed of an inner peripheral flange portion 23a, an outer peripheral flange portion 23b, an inner side wall 23c, an outer side wall 23d, and an outer edge portion 23e.

In the body flange portion 23 , the inner side wall 23 c is formed to extend upward from the outer end of a step extending outward from the upper end of the body peripheral wall portion 22 . The inner peripheral flange portion 23a is a frame-shaped portion extending outward from the upper end of the inner side wall 23c. In other words, the inner side wall 23c is a portion that extends downward toward the main body peripheral wall portion 22 from the upper surface of the inner peripheral flange portion 23a. The upper surface of the inner peripheral flange portion 23 a is the upper end of the container body 2 .

The outer side wall 23d extends downward from the outer end of the inner peripheral flange portion 23a toward the outer peripheral flange portion 23b. The outer peripheral flange portion 23b is formed extending outward from the outer end of the outer side wall 23d. That is, the body flange portion 23 has an inner peripheral flange portion 23a formed on the inner peripheral side and an outer peripheral flange portion 23b formed on the outer peripheral side. The upper surface of the inner peripheral flange portion 23a and the upper surface of the outer peripheral flange portion 23b are surfaces substantially parallel to each other.

The inner peripheral flange portion 23a is formed at a position higher than the outer peripheral flange portion 23b. Specifically, if the height from the ground contact surface 21b1 of the container body 2 to the upper surface of the inner peripheral flange portion 23a is defined as height h1, and the height from the ground contact surface 21b1 to the upper surface of the outer peripheral flange portion 23b is defined as height h2, , the height h1 is higher than the height h2. Therefore, an outer side wall 23d extending from the outer end of the inner peripheral flange portion 23a toward the outer peripheral flange portion 23b is formed between the upper surface of the outer peripheral flange portion 23b and the upper surface of the inner peripheral flange portion 23a.

The middle plate 3 constitutes a part of the packaging container 1 by placing the middle plate edge portion 37 on the upper surface of the outer peripheral flange portion 23b. As described above, when the packaging container 1 includes components such as the inner plate 3 placed on the upper surface of the outer peripheral flange portion 23b, even if an external force is applied to the inner plate 3, the inner plate 3 will be pushed away from the outer side wall 23d. cannot move inside. Specifically, the inner plate edge portion 37 is not displaced inward from the imaginary line S1 shown in FIG. The imaginary line S1 is an imaginary straight line extending vertically along the outer wall surface of the outer side wall 23d. Therefore, it is possible to prevent the inner plate 3 from moving inside the outer peripheral flange portion 23b, so that the inner plate 3 can be stably placed on the upper surface of the outer peripheral flange portion 23b.

The outer edge portion 23e is formed extending outward from the lower end of the outer peripheral flange portion 23b. The outer edge portion 23 e is covered with the outer fitting portion 45 of the lid 4 from the outside and contacts the inner surface of the outer fitting portion 45 , thereby externally fitting with the outer fitting portion 45 . That is, the outer edge portion 23e is configured to be externally fittable with the lid 4. As shown in FIG.

The outer fitting portion 45 is formed with a fitting recess 45a whose inner surface is recessed outward. The fitting recess 45a can be externally fitted with the outer edge portion 23e by engaging with the outer edge portion 23e. Thus, the container main body 2 is formed so as to be externally fittable with the lid 4 by having the outer edge portion 23e.

When the lid 4 is externally fitted to the container body 2, the inner plate edge portion 37 on which the upper surface of the outer peripheral flange portion 23b is placed is sandwiched between the outer peripheral flange portion 23b and the outer fitting portion 45 and fixed. Further, the outer peripheral wall portion 36 of the inner plate 3 is sandwiched between the outer side wall 23 d of the container body 2 and the lid peripheral wall portion 44 of the lid 4 and fixed. Therefore, by fitting the lid 4 to the container body 2, the lid 4 and the container body 2 are stably fixed, and the position of the inner tray 3 included in the packaging container 1 is also stably positioned. can be fixed. Therefore, even if an external force is applied to the packaging container 1, the positions of the container body 2, the inner plate 3 and the lid 4 are not shifted and stabilized.

(Convex portion of middle plate and concave portion of lid body)
The lid recess 43 of the lid 4 accommodates at least a portion of the middle plate flange portion 35 of the middle plate 3 and locks the middle plate flange portion 35 . The middle plate flange portion 35 is composed of an inner wall portion 35a, a top surface portion 35b, and an outer wall portion 35c. Further, the lid concave portion 43 is also composed of an inner wall portion 43a, a top surface portion 43b, and an outer wall portion 43c.

When the lid concave portion 43 completely accommodates the middle plate flange portion 35, the outer surface of the inner wall portion 35a and the inner surface of the inner wall portion 43a are in contact, the outer surface of the top surface portion 35b and the inner surface of the top surface portion 43b are in contact, and the outer wall is formed. The outer surface of the portion 35c and the inner surface of the outer wall portion 43c are in contact with each other. As a result, the lid concave portion 43 and the middle plate flange portion 35 are firmly locked in three directions, so that the middle plate 3 and the lid 4 can be prevented from being displaced.

In FIG. 8, an example in which the middle plate flange portion 35 is accommodated to the depths of the lid concave portion 43 so that the top surface portion 35b and the top surface portion 43b are in contact with each other is shown as a "completely accommodated state." there is However, it is sufficient that at least a portion of the middle plate flange portion 35 is accommodated in the lid concave portion 43 . That is, at least one of the inner wall portion 35 a , the top surface portion 35 b , and the outer wall portion 35 c of the middle plate flange portion 35 should be in contact with the inner surface of the lid concave portion 43 .

For example, the length of the middle plate flange portion 35 in the vertical direction may be shorter than the length of the lid concave portion 43 in the vertical direction. In this case, even if the lid concave portion 43 completely accommodates the inner plate flange portion 35, the top surface portion 35b and the top surface portion 43b do not come into contact with each other. Even in this case, if at least the middle plate flange portion 35 and the lid body recessed portion 43 are in contact with each other, it is possible to prevent the middle plate 3 and the lid body 4 from being dislocated.

In addition, both the middle plate flange portion 35 and the lid concave portion 43 are formed at a position higher than the upper surface of the inner peripheral flange portion 23a. At this time, the lid body 4 is externally fitted to the outer edge portion 23e of the container body 2 and locked to the middle plate flange portion 35 of the middle plate 3 . The middle plate 3 is stably placed on the upper surface of the outer peripheral flange portion 23 b and is locked to the lid body concave portion 43 of the lid body 4 . In this way, both the lid body 4 and the inner plate 3 are limited in positional deviation at two different positions. Therefore, it is possible to prevent the position of each part of the packaging container 1 from shifting, and the packaging container 1 can stably accommodate the object. Moreover, the packaging container 1 containing the object to be contained can be stably carried.

Note that the middle plate flange portion 35 also has the effect of preventing the middle plates 3 from being displaced from each other when a plurality of the middle plates 3 are stacked. Similarly, the lid concave portion 43 also has the effect of preventing the lids 4 from being displaced when the plurality of lids 4 are stacked.

(Lid shaped to fit inside)
As shown in FIG. 8, the container body 2 is configured to be externally fittable with the lid 4 and internally fittable with a lid 4-2 having a different shape from the lid 4. As shown in FIG. The lid 4-2 has an inner fitting portion 145 instead of the outer fitting portion 45 of the lid 4. As shown in FIG.

The inner fitting portion 145 is a portion that is fitted to the inner surface of the inner side wall 23c of the container body 2 that extends outward from the lid peripheral wall portion 44 . That is, the inner side wall 23c is constructed so as to be internally fittable with the lid 4-2. The inner fitting portion 145 is composed of an inner fitting wall 145a, an inner peripheral end portion 145b, and an outer peripheral end portion 145c.

The inner fitting wall 145a planarly contacts the inner surface of the inner side wall 23c. At this time, since a frictional force is generated between the inner fitting wall 145a and the inner side wall 23c, the inner side wall 23c and the inner fitting wall 145a are engaged with each other. In this manner, the inner fitting wall 145a is engaged with the inner surface of the inner side wall 23c over the entire circumference of the lid 4-2, whereby the inner fitting portion 145 is internally fitted to the inner side wall 23c.

In addition, the inner fitting wall 145a is formed with a fitting recess 145a1 whose outer surface is recessed inward along the entire circumference. A protruding portion 23c1 that protrudes inward is formed in a portion of the inner side wall 23c that is in contact with the fitting concave portion 145a1. That is, the projecting portion 23c1 is formed along the entire circumference of the inner side wall 23c corresponding to the fitting recess 145a1. The inner side wall 23c can firmly fix the inner fitting portion 145 by engaging the protrusion 23c1 with the fitting recess 145a1. In this manner, the fitting recess 145a1 and the projecting portion 23c1 can strengthen the inner fitting between the inner fitting portion 145 and the inner side wall 23c.

In addition, in this embodiment, an example in which the protruding portion 23c1 is formed over the entire circumference of the inner side wall 23c is shown. However, the protrusion may be formed only on a portion of the inner side wall 23c. For example, the inner side wall 23c may have four protrusions at equal intervals on four sides, or may have two protrusions at opposing positions. Thus, even when a plurality of projections are formed, the fitting between the inner side wall 23c and the inner fitting portion 145 can be made stronger than when no projections are formed. In addition, according to the aspect in which the protrusion is formed only on a part of the inner side wall 23c, the force for pushing the lid 4-2 in order to fit the lid 4-2 into the container body 2 is applied to the protrusion. It can be easily adjusted by changing the number.

The inner peripheral side end portion 145b contacts the upper surface of the inner peripheral flange portion 23a so as to cover it from above. Further, the outer peripheral side end portion 145c is formed in a shape corresponding to the shape from the outer side wall 23d of the body flange portion 23 to the upper surface of the outer peripheral flange portion 23b. In this manner, if the inner fitting portion 145 is formed in a shape corresponding to the shape of the body flange portion 23, the inner fitting portion 145 and the body flange portion 23 can be smoothly fitted. In addition, the appearance of the packaging container 1-2 is easily organized.

Here, as described above, the height h1 from the ground contact surface 21b1 of the main body bottom surface 21 to the upper surface of the inner peripheral flange portion 23a is higher than the height h2 to the upper surface of the outer peripheral flange portion 23b. This makes it easier to make the vertical length L1 of the outer side wall 23d shorter than the vertical length L2 of the inner side wall 23c. When the length L1 is shorter than the length L2, the area of the outer surface of the outer sidewall 23d is smaller than the area of the inner surface of the inner sidewall 23c. Therefore, the area of the inner side wall 23c becomes relatively large, and it becomes easy to secure a large area of the portion where the inner side wall 23c and the inner fitting wall 145a abut. Therefore, the inner fitting between the inner fitting portion 145 and the inner side wall 23c can be easily strengthened.

Further, by relatively reducing the area of the outer side wall 23d, not only the inner-fitting lid 4-2 but also the outer-fitting lid 4 have an advantageous effect. That is, when the area of the outer side wall 23d is small, the area of the outer fitting portion 45 can be easily reduced when the lid 4 is fitted to the container body 2 from the outside. This is because the length from the lower end of the lid peripheral wall portion 44 to the outer edge portion 23e is shortened. Therefore, the manufacturing cost of the lid 4 that can be externally fitted to the container body 2 can be reduced, and the appearance of the packaging container 1 provided with such a lid 4 can be improved.

[Characteristic structure of the middle plate]
(receiving piece)
As shown in FIG. 9, a flat plate-like receiving piece 38 is formed at a part of the tip of the middle plate edge portion 37 so as to extend outward. In this embodiment, as indicated by reference numeral 901 in FIG. 9, two receiving pieces 38 are provided on the inner plate 3, and the center line S2 of the mounting surface 31a of the inner plate bottom portion 31 is used as a reference in plan view. are placed in symmetrical positions. Specifically, the center line S2 is a straight line that overlaps the centroid of the figure representing the outer shape of the mounting surface 31a (hereinafter referred to as the “centroid of the mounting surface 31a”) when the mounting surface 31a is viewed from above. Point.

Note that the center line S2 may be a straight line that overlaps with the centroid of the placement surface 31a described above, but is not limited to this. For example, when the centroid of the mounting surface 31a is located at a position not included in the mounting surface 31a, the center line S2 is a straight line overlapping the center of a virtual circle when the mounting surface 31a is viewed from above. There may be. The "virtual circle" is a circle having the maximum area that can be included in the figure representing the outer shape of the mounting surface 31a.

A substantially half portion 38-1 at the tip of the receiving piece 38 protrudes outward from the other portion of the tip. A substantially half portion 38-1 at the tip of the receiving piece 38 that protrudes outward from the other portion is hereinafter referred to as an "outer receiving piece 38-1". Both of the two receiving pieces 38 are formed with outer receiving pieces 38-1 of the same size at the same location. In addition, since the two receiving pieces 38 are arranged at symmetrical positions with respect to the center line S2 as described above, one outer receiving piece 38-1 and the other outer receiving piece 38 of the inner plate 3 are arranged. The arrangement relationship with -1 is a diagonal relationship.

(Protrusion)
The receiving piece 38 has a raised portion 39 as shown in FIG. The protruding portion 39 protrudes upward from the upper surface of the receiving piece 38, and is accommodated in an accommodating portion 47, which will be described later, in a state in which the lid 4 covers the inner plate 3 from the upper surface. The raised portion 39 is formed in the central region 38-x of the upper surface of the receiving piece 38, as indicated by reference numeral 901 in FIG.

The “central region 38-x of the top surface of the receiving piece 38” is a region including the center of the top surface of the top surface of the receiving piece 38 and a region other than the end regions 38-y of the top surface of the receiving piece 38. . The "center of the upper surface of the receiving piece 38" may be the centroid of a figure representing the outer shape of the upper surface when the upper surface of the receiving piece 38 is viewed from above, or may be the center of a virtual circle. good. The “virtual circle” is a circle having the maximum area that can be included in the figure representing the outer shape of the upper surface of the receiving piece 38 . The definition of the "center" in the "center of the top surface of the receiving piece 38" is the same for the "central region 46-x of the top surface of the knob 46" and the "central region 50c of the lid opener 50" which will be described later.

In this embodiment, the raised portion 39 has a substantially truncated quadrangular pyramid shape. That is, each side wall of the raised portion 39 is inclined inwardly of the raised portion 39 toward the upper side. Therefore, the raised portion 39 can be easily inserted into the accommodating portion 47 and the raised portion 39 accommodated in the accommodating portion 47 can be smoothly removed from the accommodating portion 47 . This makes it possible to easily close and open the packaging container 1 . In this embodiment, “closed lid” refers to fitting the lid 4 onto the container body 2 while the inner plate 3 is placed on the upper surface of the outer peripheral flange portion 23 b of the container body 2 . “Opening the lid” in this embodiment refers to removing the lid 4 of the closed packaging container 1 .

The number, arrangement, shape, size, etc. of the raised portions 39 can be arbitrarily changed in design. For example, a plurality of raised portions smaller than the raised portion 39 of the present embodiment may be arranged in a matrix. Furthermore, the receiving piece 38 does not need to be provided with the raised portion 39 itself. In this case, instead of the raised portion 39, for example, a mark such as a letter, a figure, or a number may be provided on the upper surface of the receiving piece 38. FIG. Further, for example, the receiving piece 38 may be provided with an accommodating portion. This accommodating portion is formed so as to be concave downward from the upper surface of the receiving piece 38 .

When arranging a plurality of protruding portions in a matrix, a plurality of housing portions capable of housing the plurality of protruding portions are provided in a matrix in the later-described knob portion 46 . When a mark is provided on the receiving piece 38 , a mark that is the same as or related to the mark on the receiving piece 38 is provided on the knob 46 . When the receiving piece 38 is provided with an accommodating portion, the knob portion 46 is provided with a raised portion that can be accommodated in the accommodating portion.

(Inner surface and inclined surface of inner peripheral wall)
The inner surface 33a of the inner peripheral wall portion 33 includes two inclined surfaces 33b as indicated by reference numeral 901 in FIG. The inclined surface 33 b is a generally triangular surface with a curved outer shape at the tip, and is a surface through which the object to be stored in the inner plate 3 passes when being transferred to the container body 2 . The inclined surfaces 33b are inclined outward toward the upper side as shown in FIG. 9 (see also FIG. 1), and are arranged one by one between the two receiving pieces 38 in plan view.

It should be noted that the phrase "outwardly inclined toward the upper side" means that the inner surface 33a (see FIG. 9) is inclined differently. For example, the inclination angle of the inclined surface 33b may be different from the inclination angle of the inner surface 33a. The inclination angle in this case is the angle formed between the inner surface 33a and the reference plane and the angle formed between the inclined surface 33b and the reference plane when the mounting surface 31a of the inner plate bottom portion 31 is taken as the reference plane (inclination angle 0°). is the angle. Further, the surface layer mode of the inclined surface 33b may be different from that of the inner surface 33a. Furthermore, the viewing mode of the inclined surface 33b may be configured with a geometric pattern, and the edge of the inclined surface 33b may be configured with a triangular form that can be distinguished from the inner surface 33a.

By forming such an inclined surface 33b, the object accommodated in the inner plate 3 can be smoothly moved from the inclined surface 33b to the container main body 2. As shown in FIG. Further, when tilting the inner plate 3 to move the contained object to the container body 2, the two receiving pieces 38 can be held with both hands and tilted. As a result, the objects stored in the middle plate 3 can be easily transferred to the container body 2 .

Furthermore, when the tray 3 is tilted while holding the receiving piece 38, the object passing through the inclined surface 33b is less likely to come into contact with the finger holding the receiving piece 38. - 特許庁This makes it possible to reduce adhesion and contamination of bacteria, etc., to the object to be contained when the object is transferred from the inner plate 3 to the container body 2, thereby providing the packaging container 1 excellent in terms of sanitation and infection prevention. realizable.

As indicated by reference numeral 901 in FIG. 9, the inclined surface 33b is formed such that the intersection point I between the first straight line S3 and the second straight line S4 and the center point C5 of the mounting surface 31a of the inner tray bottom surface portion 31 are aligned in plan view. They are formed so that their arrangement positions match each other.

The first straight line S3 is an imaginary straight line connecting the centers C1 and C2 of the respective figures forming the outer shape of the two inclined surfaces 33b in plan view. The centers C1 and C2 may be the centroids of the respective graphics described above, or may be the centers of virtual circles having the maximum area that may be included in the respective graphics described above. The second straight line S4 is an imaginary straight line that connects the centers C3 and C4 of the figures that form the outlines of the two open lid portions 50 (see FIG. 11; details will be described later) in a plan view. Each definition of centers C3 and C4 is the same as for centers C1 and C2. In this embodiment, the center line S2 and the first straight line S3 overlap in plan view.

The first straight line S3 and the second straight line S4 are orthogonal in plan view. The intersection point I is the intersection point of the first straight line S3 and the second straight line S4 which are orthogonal to each other. Here, the expression that the first straight line S3 and the second straight line S4 are "perpendicular in plan view" means that the first straight line S3 and the second straight line S4 are not perpendicular to each other at a level that can be visually recognized in a plan view. , and does not require orthogonality in a strict sense. The "center" of the center point C5 is synonymous with the "center of the placement surface 31a" described above.

The fact that the intersection point I and the center point C5 "match the arrangement positions in a plan view" means that the arrangement positions do not match at a level that can be visually recognized in the plan view, and strictly speaking, the arrangement positions match. does not require you to do so. For example, even if the arrangement positions of the intersection point I and the center point C5 in plan view do not match slightly due to a dimensional error that occurs during the manufacturing process of the packaging container 1, it can still be said that "the arrangement positions match in plan view." .

By arranging the inclined surfaces 33 b as described above, the two inclined surfaces 33 b are not arranged close to either one of the two receiving pieces 38 . Therefore, when the inner tray 3 is tilted while holding the two receiving pieces 38, it is possible to further reduce the possibility that the object passing through the inclined surface 33b contacts the finger holding the receiving pieces 38. FIG. As a result, the packaging container 1 that is more excellent in terms of hygiene and infection prevention can be realized.

The two receiving pieces 38 are arranged with good balance with respect to the mounting surface 31a, and the two inclined surfaces 33b are also arranged with good balance with respect to the two receiving pieces 38. As shown in FIG. Therefore, when holding the two receiving pieces 38 and tilting the inner tray 3, it becomes easy to move the stored object to the inclined surface 33b. As a result, it becomes easier to transfer the object stored in the inner tray 3 to the container body 2.例文帳に追加

The inclined surface 33b has an indicator 33c. The index 33c is a part for prompting the object to be stored in the inner tray 3 to move from the inclined surface 33b to the container body 2. As shown in FIG. In this embodiment, the index 33c is composed of two first index portions 33c-1 and 33c-3 and one second index portion 33c-2.

The two first index portions 33c-1 and 33c-3 and the second index portion 33c-2 both have the same arrow shape and size in plan view, and extend from the inclined surface 33b toward the inner side of the inner plate 3. It protrudes so as to be convex. Also, the tips of the arrows of the two first index portions 33c-1 and 33c-3 and the second index portion 33c-2 are directed upward. The arrangement positions of the two first index portions 33c-1 and 33c-3 are the same, and the second index portion 33c-2 is arranged above the two first index portions 33c-1 and 33c-3. . Also, the second index portion 33c-2 is arranged horizontally between the two first index portions 33c-1 and 33c-3. Furthermore, the horizontal distance between the first index portion 33c-1 and the second index portion 33c-2 is equal to the horizontal distance between the other first index portion 33c-3 and the second index portion 33c-2. is the same as

Since the inclined surface 33b has the index 33c as described above, the function of the inclined surface 33b can be easily grasped by visually recognizing the index 33c. As a result, it is possible to transfer the stored object to the container main body 2 from the inclined surface 33b with a high probability.

In addition, since the index 33c is composed of the two first index portions 33c-1 and 33c-3 and the second index portion 33c-2 as described above, the two first index portions 33c-1 and 33c Even if -3 becomes invisible due to the contained object, the second index portion 33c-2 can be visually recognized. As a result, the function of the inclined surface 33b can be grasped even when the size or amount of the object to be accommodated is increased, so that the variation of the object to be accommodated in the inner plate 3 having the inclined surface 33b can be increased. can be done.

The number, arrangement, shape, size, etc. of the indicators 33c can be arbitrarily changed in design. For example, the indicator 33c may be composed of only one arrow, or the number of second indicator parts 33c-2 may be increased. Further, for example, the third index portion may be arranged above the second index portion 33c-2. Furthermore, the indicator 33c may be replaced with a figure, characters, or the like other than the arrow.

A region of the inner surface 33a of the inner peripheral wall portion 33 other than the inclined surface 33b has a rib structure composed of a plurality of vertically extending ribs. Thereby, when the inside of the inner plate 3 is viewed, the inclined surface 33b can be easily distinguished from the other regions. Therefore, it is possible to reduce erroneous movement of the stored object from the area other than the inclined surface 33b to the container main body 2 when transferring the stored object in the inner tray 3 to the container main body 2 . In addition, even if an object to be stored is moved from a region other than the inclined surface 33b to the container body 2, the object to be stored is caught by the ribs, so that the object to be stored can be prevented from coming out of an incorrect position.

[Characteristic structure of lid]
(Knob part)
As shown in FIG. 10, a knob portion 46 is formed at a portion of the lower end of the lid peripheral wall portion 44 so as to protrude outward. In this embodiment, as indicated by reference numeral 1001 in FIG. 10, two knobs 46 are provided on the lid 4, and when the lid 4 covering the inner plate 3 from above is viewed from above, the center line They are arranged at symmetrical positions with respect to S2 (see FIG. 9). Further, the knob portion 46 is formed above the outer fitting portion 45 as shown in FIG.

A substantially half portion 46-1 at the tip of the knob 46 protrudes outward from the other portion of the tip. A substantially half portion 46-1 at the tip of the knob portion 46 that protrudes outward from the other portion is hereinafter referred to as an "outer knob portion 46-1". Both of the two knobs 46 are formed with outer knobs 46-1 of the same size at the same location. In addition, since the two knob portions 46 are arranged at symmetrical positions with respect to the center line S2 as described above, one outer knob portion 46-1 and the other outer knob portion 46 of the lid 4 are arranged. The arrangement relationship with -1 is a diagonal relationship.

(Accommodation section)
The knob portion 46 has a housing portion 47 as shown in FIG. The accommodating portion 47 is a recess that is concave upward from the lower surface of the knob portion 46 and accommodates the raised portion 39 of the intermediate plate 3 in a state where the lid 4 covers the intermediate plate 3 from the upper surface. The accommodating portion 47 is formed in the central region 46-x of the upper surface of the knob portion 46, as indicated by reference numeral 1001 in FIG. The “central region 46-x of the upper surface of the knob 46” is a region of the upper surface of the knob 46 that includes the center of the upper surface of the knob 46 and is an area other than the end regions 46-y of the upper surface of the knob 46. .

In the present embodiment, the accommodating portion 47 has a substantially truncated pyramid shape and substantially corresponds to the shape of the raised portion 39 of the inner plate 3 . Therefore, the raised portion 39 can be easily inserted into the accommodating portion 47, and the raised portion 39 accommodated in the accommodating portion 47 can be taken out smoothly. This makes it possible to easily close and open the packaging container 1 .

The number, arrangement, shape, size, etc. of the accommodating portions 47 can be arbitrarily changed in design. For example, a plurality of accommodating portions smaller than the accommodating portion 47 of the present embodiment may be arranged in a matrix. Furthermore, the accommodation portion 47 itself may not be provided in the knob portion 46 . In this case, instead of the storage portion 47, a mark such as a letter, a figure, or a number may be provided on the upper surface of the knob portion 46, for example. Further, for example, a raised portion may be provided on the knob portion 46 . This raised portion is formed so as to protrude downward from the lower surface of the knob portion 46 . In other words, the protruding portion according to one aspect of the present invention may protrude vertically from either the receiving piece 38 or the knob portion 46 . The form of the receiving piece 38 corresponding to each variation described above is as described above.

(hanging wall)
The lid 4 has a hanging wall 48 as indicated by reference numeral 1001 in FIGS. The hanging wall 48 is a plate-like portion that extends downward from both side ends of the knob portion 46 and connects with the outer fitting portion 45 . The hanging wall 48 comes into contact with the side end surface of the receiving piece 38 when the knob 46 moves horizontally from the position of the position setting state (see FIG. 3). Details of the position setting state will be described later. Horizontal movement of the knob 46 is restricted by the hanging wall 48 .

In this manner, the hanging wall 48 can restrict unintentional movement of the knob 46 in the horizontal direction. As a result, it becomes easier to maintain a position setting state described later, and each position of the knob portion 46 and the receiving piece 38 in the open lid portion 50 is stabilized, so that the appearance of the vicinity of the open lid portion 50 can be improved.

In this embodiment, as shown in FIG. 3, the distance between the two hanging walls 48 increases downward. Therefore, when the hanging wall 48 comes into contact with the side end face of the receiving piece 38 , the hanging wall 48 is easily lifted along the side end face of the receiving piece 38 . As a result, even after the hanging wall 48 comes into contact with the side end face of the receiving piece 38, the knob 46 can continue to move horizontally after the lid 4 is lifted as a whole. Therefore, for example, when it is desired to open the closed packaging container 1, by moving the lid body 4 in the horizontal direction to intentionally widen the area where the receiving piece 38 and the knob portion 46 do not overlap, The lid can be easily opened by pinching the above-mentioned area that has become easy to pinch.

[Lid opening part and position setting part]
(Open lid)
The packaging container 1 has an opening lid portion 50 as indicated by reference numeral 1101 in FIG. The lid-opening part 50 is a part to be pinched when removing the lid 4 from the inner plate 3, such as opening the packaging container 1, and is formed when the lid 4 covers the inner plate 3 from the upper surface. is. The open lid portion 50 has the receiving piece 38 of the inner plate 3 and the knob portion 46 of the lid body 4 . 12 and 13, the position of the knob 46 relative to the receiving piece 38 is variable in the horizontal direction.

In this embodiment, the packaging container 1 has two opening lid portions 50 as indicated by reference numeral 1101 in FIG. The two lid openers 50 are arranged at symmetrical positions with respect to the center line S2 in plan view (see FIG. 9).

11 and 12, the openable portion 50 is arranged such that the packaging container 1 is closed and the contained items can be shipped and sold. Hereinafter, this mode of the open lid portion 50 will be referred to as a "regular mode". 11, all portions of the receiving piece 38 other than the outer receiving piece 38-1 overlap with the knob 46 in plan view. On the other hand, the side end of the outer receiving piece 38-1 of the receiving piece 38 overlaps the side end of the outer knob portion 46-1 of the knob portion 46 in plan view. That is, in the normal mode, the outer receiving piece 38-1 and the outer knob portion 46-1 do not substantially overlap.

As described above, in the lid-opening portion 50 of the normal mode, the receiving piece 38 and the knob portion 46 are substantially overlapped as a whole in plan view, so that when the packaging container 1 is seen in plan view, it is not so conspicuous. The appearance of the container 1 is not spoiled. In addition, the lid opener 50 in the normal form is easy to pick up only the outer receiving piece 38-1 and only the outer knob 46-1. Thereby, the lid body 4 can be easily removed from the inner plate 3 .

As described above, since the relative position of the knob 46 with respect to the receiving piece 38 is variable in the horizontal direction, the openable portion 50 can be in a plurality of modes other than the normal mode. For example, a mode in which the receiving piece 38 and the knob 46 do not overlap at all in plan view as indicated by reference numeral 1301 in FIG. Further, for example, a mode in which the outer receiving piece 38-1 and the outer knob 46-1 substantially overlap each other as indicated by reference numeral 1302 in FIG.

When the lid opening portion 50 is viewed from the viewpoint of the overlapping of the receiving piece 38 and the knob portion 46, the lid opening portion 50 is composed of an overlapping portion 50a and a non-overlapping portion 50b, as indicated by reference numeral 1102 in FIG. ing. The overlapping portion 50a is a portion of the open lid portion 50 where the receiving piece 38 and the knob portion 46 overlap each other in plan view. The non-overlapping portion 50b is a portion other than the overlapping portion 50a in the open lid portion 50. As shown in FIG. Here, the lid-opening portion 50 is a portion that is established even when the receiving piece 38 and the knob portion 46 do not overlap each other as described above. In this state, it is interpreted that the opening portion 50 is composed only of the non-overlapping portion 50b.

The non-overlapping portion 50b is further composed of a receiving one-side non-overlapping portion 38b and a knob-side non-overlapping portion 46b. The areas of the overlapping portion 50a, the receiving piece-side non-overlapping portion 38b, and the knob-side non-overlapping portion 46b in plan view change according to changes in the horizontal direction of the position of the knob 46 relative to the receiving piece 38. FIG.

(Position setting section)
The packaging container 1 has a position setting portion 60 as indicated by reference numeral 1102 in FIG. The position setting portion 60 is a portion for setting the relative position of the knob portion 46 with respect to the receiving piece 38 in the opening portion 50 to a predetermined position, and has the raised portion 39 of the receiving piece 38 and the housing portion 47 of the knob portion 46 . is doing. In the following description, the relative position of the knob portion 46 to the receiving piece 38 in the open lid portion 50 is abbreviated as "relative position".

The “predetermined position” is a relative position that allows the open lid portion 50 to be in a regular mode. Specifically, the relative position is such that the surface area of the lid-opening portion 50 is larger than the assumed surface area when the lid-opening portion 50 is viewed from above. The assumed surface area is the surface area of the open lid portion 50 in a plan view when it is assumed that the open lid portion 50 is composed only of the overlapping portion 50a. Hereinafter, a state in which the relative position is set to a predetermined position is defined as a "position setting state". The position setting state is, in other words, when the open lid portion 50 is in the normal mode.

In addition, the "surface area" means the picking area area. The “pick area area” is the area of the portion of the lid opening portion 50 where the lid of the packaging container 1 can be opened by pinching. Therefore, increasing the "surface area" means increasing the pinch area area.

In this manner, the overlapping portion 50a and the non-overlapping portion 50b are formed by the position setting portion 60 such that the surface area of the opening portion 50 in plan view is larger than the assumed surface area. That is, a portion (non-overlapping portion 50b) that allows the lid of the packaging container 1 to be opened by pinching is formed in the open lid portion 50 . Accordingly, the lid of the packaging container 1 can be easily opened by pinching the non-overlapping portion 50b.

The position setting portion 60 is formed in the central region 50c of the open lid portion 50 in the position setting state. The “central region 50c of the lid-opening portion 50” is a region including the center of the figure representing the outer shape of the lid-opening portion 50 when the lid-opening portion 50 is viewed from above, and the end region 50d of the aforementioned figure. It is an area other than In this embodiment, the raised portion 39 of the receiving piece 38 is formed in the central region 38-x, and the accommodation portion 47 of the knob 46 is formed in the central region 46-x. However, these are not prerequisites for the positioning portion 60 to be formed in the central region 50c in the positioned state.

Since the position setting portion 60 is formed in the central region 50c as described above, an external force acts on the lid opening portion 50 compared to the case where the position setting portion 60 is formed in the end region 50d. Also, deformation such as bending of the position setting portion 60 is unlikely to occur. As a result, each position of the knob 46 and the receiving piece 38 in the open lid portion 50 once set can be stably maintained regardless of the external force acting on the open lid portion 50 .

In the position setting state, the position setting portion 60 is in a housed state in which the raised portion 39 of the receiving piece 38 is housed in the housing portion 47 of the knob portion 46 . In this embodiment, in the accommodated state (that is, the position setting state), the raised portion 39 and the accommodating portion 47 do not contact each other, and a space 60 a is formed between the raised portion 39 and the accommodating portion 47 .

From the above, looking at the position setting portion 60 , specifically whether or not the raised portion 39 is housed in the housing portion 47 , each of the knob portion 46 and the receiving piece 38 is positioned in the opening portion 50 . It is possible to grasp whether or not it is arranged at a predetermined position. As a result, it is possible to easily determine whether or not the container body 2 and the lid 4 are properly fitted together, and to correctly grasp the fitted state of the container body 2 and the lid 4 .

Further, the positions of the knob 46 and the receiving piece 38 in the open lid portion 50 can be maintained at desired positions by the position setting portion 60 . As a result, the fitting state between the container body 2 and the lid 4 is stable and correct, and the appearance of the packaging container 1 can be improved. Furthermore, since the space 60a is formed between the raised portion 39 and the accommodation portion 47 in the accommodated state, accommodation of the raised portion 39 in the accommodation portion 47 and withdrawal of the raised portion 39 from the accommodation portion 47 are facilitated. . As a result, the position setting state can be easily created, and the lid of the packaging container 1 can be easily opened.

The number, arrangement, shape, size, etc. of the position setting portions 60 can be arbitrarily changed in design. As described above, each of the raised portion 39 and the accommodating portion 47 that constitute the position setting portion 60 may be replaced with marks such as letters, drawings, numbers, and the like. Further, for example, the receiving piece 38 may be provided with a receiving portion and the knob portion 46 may be provided with a protruding portion, and the protruding portion and the receiving portion may constitute the position setting portion 60 .

(Relationship between lid opening portion and position setting portion)
12 and 13, the relationship between the degree of overlap between the receiving piece 38 and the knob portion 46 in the open lid portion 50 and the mode of the position setting portion 60 will be described. Here, focusing on the degree of overlap between the outer receiving piece 38-1 of the receiving piece 38 and the outer knob portion 46-1 of the knob portion 46 will make the above relationship most clear. Focus only on the receiving piece 38-1 and the outer knob 46-1.

First, when the outer knob portion 46-1 indicated by reference numeral 1201 in FIG. 12 and the outer receiving piece 38-1 indicated by reference numeral 1202 in FIG. 1 and the outer knob 46-1 are overlapped with each other as indicated by reference numeral 1203 in FIG. Hereinafter, the outer knob portion 46-1 indicated by reference numeral 1201 in FIG. 12 will be simply referred to as "outer knob portion 46-1", and the outer receiving piece 38-1 indicated by reference numeral 1202 in FIG. ”.

Here, of the tip of the lid opener 50 composed of the outer receiving piece 38-1 and the outer knob 46-1, the portion composed only of the outer knob 46-1 is defined as the outer knob independent portion l1. , and the portion composed only of the outer receiving piece 38-1 is defined as an outer receiving piece independent portion l2. A portion where the outer receiving piece 38-1 and the outer knob portion 46-1 overlap is defined as an outer overlapping portion l3.

In the normal mode lid opener 50, the outer overlapping portion l3 is formed by the side end of the substantially outer receiving piece 38-1 and the side end of the outer knob portion 46-1, and the region of the outer knob single portion l1 and the side end of the outer knob portion 46-1. The area of the outer receiving piece single portion 12 is widened. That is, both the single outer knob portion l1 and the single outer receiving piece portion l2 are easy to pick. Further, when the open lid portion 50 is in the normal mode, the position setting portion 60 is in the accommodated state.

When the outer receiving piece 38-1 and the outer knob 46-1 do not overlap each other, as indicated by reference numeral 1301 in FIG. consists of the tip of In this state, the raised portion 39 of the position setting portion 60 is not entirely accommodated in the accommodating portion 47, and the raised portion 39 and the accommodating portion 47 are separated from each other.

In the open lid portion 50, when the outer receiving piece 38-1 and the outer knob portion 46-1 are overlapped further from the regular overlap, the area of the outer overlapping portion l3 increases, while the outer knob single portion l1 increases. and the area of the outer receiving piece single portion l2 are reduced. At the same time, the protuberant portion 39 that has been entirely accommodated in the accommodating portion 47 gradually protrudes from the accommodating portion 47 to the outside.

Then, as indicated by reference numeral 1302 in FIG. 13, when substantially all of the outer receiving piece 38-1 and substantially all of the outer knob portion 46-1 are overlapped, the tip of the open lid portion 50 is substantially the outer overlapping portion. l3 only. In other words, the region of the outer knob single portion l1 and the region of the outer receiving piece single portion l2 are substantially eliminated from the tip of the open lid portion 50 . In this state, the position setting portion 60 is in a state in which a little less than half of the raised portion 39 protrudes from the accommodating portion 47 .

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

1, 1-2 packaging container 2 container body 3 middle plate 4 lid (second lid)
4-2 Lid (first lid)
21 Body bottom part (bottom part)
21b1 Ground contact surface 22 Main body peripheral wall 23 Main body flange 23a Inner peripheral flange 23b Outer peripheral flange 23c Inner side wall 23c1 Projection 23d Outer side wall 23e Outer edge end 31 Middle plate bottom 31a Mounting surface 33 Inner peripheral wall 33a Inner surface 33b Inclined Surface 33c Index 33c-1 First index portion (other index portion)
33c-2 Second Indicator Portion (at least one Indicator Portion)
35 middle plate flange portion (middle plate convex portion)
36 outer peripheral wall (middle plate peripheral wall)
37 Inner tray edge 38 Receiving piece 39 Raised portion 43 Lid concave portion 44 Lid peripheral wall portion 45 Outer fitting portion 46 Knob portion 47 Accommodating portion 48 Hanging wall 50 Lid opening portion 50a Overlapping portion 50b Non-overlapping portion 50c Central region 60 Position setting unit 60a Space C1 to C4 Centroid C5 Center point I Intersection point S2 Center line S3 First straight line S4 Second straight line

Claims (1)

A packaging container which includes a container body, and which can be fitted with a first lid that is internally fitted to the container body from the inside and a second lid that is externally fitted to the container body from the outside. ,
the second lid;
a middle plate disposed between the container body and the second lid,
The container body is
a main body peripheral wall extending upward from the bottom surface;
a main body flange portion extending outward from the main body peripheral wall portion;
The bottom portion is composed of a main body placement portion and a main body leg portion,
The main body placing portion is formed in a flat plate shape on which the object to be accommodated is placed,
The main body leg surrounds the main body mounting portion in a plan view and protrudes downward,
The body flange portion is
Including an inner peripheral flange portion formed on the inner peripheral side and an outer peripheral flange portion formed on the outer peripheral side,
a height from the contact surface of the bottom surface portion to the upper surface of the inner peripheral flange portion is higher than a height from the contact surface to the upper surface of the outer peripheral flange portion;
an inner side wall that extends downward from the upper surface of the inner peripheral flange portion toward the main body peripheral wall portion and that can be internally fitted with the first lid by an inner surface thereof; and from the inner peripheral flange portion toward the outer peripheral flange portion. an outer side wall extending downward; and an outer edge end portion extending outward from the outer peripheral flange portion and capable of being externally fitted with the second lid body;
A step is formed between the upper surface of the outer peripheral flange portion and the upper surface of the inner peripheral flange portion,
The middle plate is
a middle plate peripheral wall portion forming the outer periphery of the middle plate; and a middle plate edge portion extending outward from a lower end of the middle plate peripheral wall portion;
The edge of the inner plate is placed on the upper surface of the outer peripheral flange,
The middle plate peripheral wall portion is formed with a middle plate convex portion that protrudes upward,
The second lid body is formed with a lid recess that is recessed upward and that accommodates and locks at least a part of the middle tray protrusion,
The lid concave portion and the middle plate convex portion are formed at a position higher than the upper surface of the inner peripheral flange portion,
In a state where the middle plate is arranged between the container body and the second lid body, when the second lid body is fitted to the container body from the outside, at least a part of the middle plate convex portion is accommodated in the lid recess, and the lower end of the inner plate peripheral wall portion abuts against the step, thereby restricting the inner plate from moving inwardly of the outer peripheral flange portion. A packaging container, characterized in that:

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