JP3186387U - Food container - Google Patents

Abstract

A food container is provided that can suppress a load from being applied to food without using a lid having high strength.
A container body includes a housing recess that opens to the upper surface side, and a flange that extends outward from an opening edge of the housing recess. Moreover, it has the partition part 13 which protrudes upwards from the bottom face part 11, and extends in linear rib shape. The container body 1 is provided with a protruding shape corresponding to the recessed shape of the housing recess 10 on the upper surface side on the lower surface side, so that when the plurality of container bodies 1 are stacked one above the other, the housing recess in the upper container body A part of the lower side of the container has a shape such that it is accommodated in the accommodating recess of the lower container body.
[Selection] Figure 1

Description

  The present invention relates to a food container, and more particularly, to a food container including a tray-shaped container body having a rectangular outline in plan view.

Conventionally, a raw material is a thermoplastic resin film, a thermoplastic resin foam sheet, or a laminated foam sheet in which a thermoplastic resin film is laminated on a thermoplastic resin foam sheet, and vacuum forming or pneumatic forming is performed on the raw material. Various products are produced by a method called a sheet forming method in which thermoforming is performed.
This sheet forming method is widely used for manufacturing a container body of a food container such as a meat tray or a lunch box and a lid that covers the container body because it can mass-produce a light and excellent product.

Conventionally, when a tray-like container body such as a meat tray is produced by a sheet forming method, for example, a mold having a recessed shape corresponding to the food storage space of the container body is used, and the heat generated by the mold is used. A trimming step for cutting a flat portion outside the housing recess is carried out in order to take out the product from the raw material after thermoforming, together with a molding step for forming a housing recess for housing food in the original fabric by molding. Yes.
Therefore, the produced container main body is provided with a flange extending outwardly from the opening edge of the housing recess together with the housing recess (see Patent Document 1 below).

  The container body produced in this way has a protruding shape corresponding to the recessed shape of the receiving recess on the upper surface side formed on the lower surface side, and as a result of providing a draft in the mold, the bottom of the receiving recess Since the part is smaller than the opening, when forming a laminate by stacking multiple container bodies vertically in a stack, a part of the lower part (bottom part) of the container recess on the upper stage is placed on the lower stage. It has the advantage that it can be accommodated in the accommodation recessed part of the container main body of the side, and the said laminated body can be made compact.

JP2012-091378A

As described above, the conventional food packaging container has a merit that a plurality of container main bodies can be transported in a compact laminated body when transported from a container manufacturer to a user, but has a demerit when used by a user. Sometimes.
Explaining this point, for example, at a food sales office, after food is stored in a container body, the food is displayed as it is, or when a lid is attached or wrapped as necessary. Sales are in progress.
After the food is stored, if the container main bodies without the lid attached are stacked, a load is applied to the food stored in the lower container main body by the upper container main body that stores the food. There is a possibility that the load has an adverse effect.
Moreover, it is the same about the point that it is easy to apply a load to the food on the lower side if the container main bodies that have been wrapped are stacked after the food is stored.

In order to prevent this, for example, when the container body is rectangular or the like, the upper side and the lower side are stacked in a state where they are rotated 90 degrees so that the food on the lower side is not loaded. In that case, in this case, the upper and lower container bodies are stacked without aligning the edges (outer peripheral edges).
In the above case, since the upper container body is overlapped in a form protruding from the outer peripheral edge of the lower container body, it may be necessary to secure an extra sales space.
Such problems are not limited to products produced by the sheet molding method, but when a plurality of container bodies are stacked one above the other, a part of the lower part of the housing recess of the upper container body is accommodated in the lower container body. This is a problem common to food storage containers stored in the recesses.

That is, the conventional food container has a problem that it is difficult to suppress a load from being applied to food unless a high-strength lid is used in addition to the container body.
This invention is made | formed in view of the said problem, and makes it the subject to provide the container for foodstuff accommodation which can suppress that a load is added to foodstuffs, without using a high intensity | strength cover body.

A container for food storage according to the present invention includes a tray-shaped container body having a rectangular outline shape in plan view, an accommodation recess opened to the upper surface side, and a flange extending outward from an opening edge of the accommodation recess. Is provided in the container body, and a bottom surface portion on which food is placed on the upper surface side, and a peripheral side wall portion that rises outward from the outer edge of the bottom surface portion and defines the opening edge by an upper end edge, A container for food storage in which the shape of the opening edge of the storage recess is a rectangle smaller than the contour shape, and the outer edge shape of the bottom surface portion is a rectangle smaller than the opening edge, The housing recess is further provided with a partition that has a height corresponding to the peripheral side wall and protrudes upward from the bottom surface and extends in a rib shape to partition the internal space of the housing recess, , The bottom When the plurality of container main bodies are stacked one above the other by forming the lower surface side of the container to be smaller than the opening of the housing recess and forming the recessed shape corresponding to the protruding shape of the partitioning portion on the lower surface side. A part of the bottom surface portion and the peripheral side wall portion of the upper container body can be accommodated in the housing recess of the lower container body, and the two short sides facing each other in the rectangle defining the outer edge of the bottom surface portion. The partition portion is provided at a position where the distance to the first side is longer than the distance to the second side, and the partition portion extends along the direction parallel to the short side, The length of the flange extending outward from the peripheral side wall rising from the first side is longer than the length of the flange extending outward from the peripheral side wall rising from the second side. The length of the part is (L1), the first side The distance in the horizontal direction from the second side to the tip of the collar (L3), the distance in the horizontal direction from the second side to the tip of the collar (L3), and the collar on the second side from the partition The following relational expressions (1) and (2) are established, where (L4) is the distance in the horizontal direction to the tip of the lens.

L1> L3 (1)
L2 <L4 (2)

According to the present invention, since the contour shape of the container body is rectangular, when the plurality of container bodies are stacked one on top of the other, the edge is not affected even if the upper container body is rotated 180 degrees with respect to the lower container body. They can be stacked in a uniform manner.
Moreover, in this invention, the length of the collar part by the side of the 1st edge | side of two short sides which oppose in the rectangle which demarcates an outer edge of a bottom face part is longer than the collar part by the side of a 2nd side.
Therefore, when the upper stage side is rotated 180 degrees with respect to the lower stage side and stacked as described above, the brim part with a short extension length is positioned on the hook part with a long extension length. .
And, since the length (L1) of the collar part located below is longer than the distance (L3) in the horizontal direction from the tip of the short collar part to the second side forming the outer edge of the bottom surface part, The container body on the upper stage side is supported from the lower side by the long flange.

On the other short side, a short flange is disposed on the lower side and a long flange is disposed on the upper side. The partition portion having a height corresponding to the peripheral side wall is Located near the short buttocks.
And the distance (L2) in the horizontal direction from the front-end | tip of the short collar part of a lower container main body to the said partition part (L2) in the horizontal direction from the front-end | tip of the long collar part in the upper container body to a bottom part outer edge (L2) Since L4) is longer, the bottom surface of the upper container body is also supported by the partition of the lower container body on this side.

In other words, according to the present invention, when the upper container body is rotated by 180 degrees with respect to the lower container body, the lower container body is placed on the bottom surface of the upper container body. When the collar portion and the partition portion are in contact with each other, the housing concave portion of the upper container body is prevented from entering the lower housing concave portion.
Even when a new container body is stacked on the upper container body, the new container body is stacked by rotating the container body 180 degrees with respect to the upper container body. It can suppress that a load is applied to the food stored in the upper container body by the main body.

  Therefore, according to the present invention, it is possible to suppress the load from being applied to the food when the container main bodies containing the food are stacked.

The schematic top view which showed the shape in the top view of the container main body of the container for foodstuffs in this embodiment. The schematic bottom view which showed the shape in the bottom view of the same container main body. The schematic side view which showed the shape in the side view of the same container main body. The schematic side view which shows a mode that two container main bodies were piled up by the one aspect | mode. The schematic side view which shows a mode that two container main bodies were piled up by the other aspect. The schematic top view which showed the modification of the container main body.

Hereinafter, an embodiment of a food container according to the present invention will be described with reference to the drawings.
The container for food storage of this embodiment is formed by subjecting a thermoplastic resin foam sheet (hereinafter also simply referred to as “foam sheet”) to thermoforming by a sheet molding method, as shown in FIG. A tray-like container body 1 having a rectangular outline shape in plan view is provided.
The container main body 1 of the present embodiment includes an accommodation recess 10 that opens to the upper surface side, and a flange 20 that extends outward from the opening edge 10 e of the accommodation recess 10.
Further, as will be described later, the container body 1 has a protruding shape corresponding to the recessed shape of the receiving recess 10 on the upper surface side on the lower surface side, so that a plurality of container main bodies 1 and 1 'can be moved up and down. When being superposed on each other, a part of the lower side of the housing recess of the upper container body is accommodated in the housing recess of the lower container body.

The said accommodating recessed part 10 is a part used as the accommodation space for accommodating a foodstuff, and as shown in FIGS. 1-3, the bottom face part 11 in which a foodstuff is mounted in the upper surface side, and the outer edge 11e of this bottom face part 11 A peripheral side wall portion 12 that rises outward from the top and delimits the opening edge 1e by an upper edge, and a partition portion 13 that protrudes upward from the bottom surface portion 11 and extends in a linear rib shape. ing.
In the housing recess 10, the inner space of the peripheral side wall, which is a food storage space, is divided by the partition portion 13.

In the container body 1, the shape of the opening edge 10e of the receiving recess 10 is a rectangle smaller than the contour shape of the container body, and the outer edge shape of the bottom surface portion 11 is a rectangle smaller than the opening edge 10e. ing.
The partition portion 13 is formed between two opposing short sides in the rectangle defining the bottom surface outer edge 11e, and extends in a rib shape along a direction parallel to the short side. .
More specifically, the partition portion 13 has a shape in which the foamed sheet is formed in a mountain fold that is convex upward in a cross section cut along the longitudinal direction of the container body 1 orthogonal to the extending direction.
The partition portion 13 is formed at a height corresponding to the peripheral side wall portion 12, and the top portion 13t is substantially the same as the upper end edge 12t of the peripheral side wall portion 12 that defines the opening edge 10e. Located at height.

As described above, the container body 1 of the present embodiment is formed by a sheet forming method, and therefore, the lower surface side of the container body 1 is foamed more than the rectangle that defines the opening edge 10e as shown in FIG. A rectangular frustum-shaped projecting shape having a rectangular bottom surface that is larger by the thickness of the sheet and a rectangular upper surface that is larger by the thickness of the foam sheet than the rectangle that defines the outer edge 11e of the bottom surface portion is formed.
Further, the housing recess 10 of the present embodiment is provided with the partition portion 13 as described above. However, since the container body 1 of the present embodiment is formed by the sheet forming method as described above, the container body. A recessed shape corresponding to the protruding shape of the partition portion 13 is formed on the lower surface side of 1.
In other words, the upper bottom surface of the quadrangular frustum formed by the lower surface 11b of the bottom surface portion 11 has an opening 13o (hereinafter also referred to as a “lower surface opening 13o”) corresponding to the shape of the partition portion 13 on the proximal side in the protruding direction. ) Is formed.

The partition portion 13 is not located at the central portion in the longitudinal direction of the rectangle that defines the opening edge 10e or the bottom surface outer edge 11e, but is located near one short side.
That is, the partition portion 13 has a distance D1 between the first side 11e ₁ of the _two short sides 11e ₁ and 11e ₂ facing each other in the rectangle defining the bottom surface outer edge 11e and the second side 11e _2. It is formed at a position that is longer than D2.

With respect to the housing recess 10, the flange 20 extends from the opening edge 10 e of the housing recess 10 substantially outward in the horizontal direction, and circulates around the opening edge 10 e that is rectangular. It is provided as follows.
Moreover, the flange portion 20 is a portion in which the extension length of the portion of the peripheral side wall portion 12 rising from the first side 11e ₁ on the side away from the partition portion 13 is opposed via the partition portion 13 ( It is longer than a portion extending from the upper edge of the peripheral side wall portion rising from the second side 11e ₂ .
More specifically, in the container body 1 of the present embodiment, the flange portion 20 includes a portion along two long sides and one short side of the four sides of the rectangle formed by the opening edge 10e. The length extending from the opening edge 10e is made substantially the same for the portion along the edge, but the portion along the remaining short side, that is, the other portion on the first side 11e ₁ side. Compared with the extension length is relatively long.
In the following description, a portion in which the flange portion 20 is extended long and is wide in the direction of circling around the housing recess 10 is referred to as a wide portion 20a, and the wide portion 20a and the partition portion 13 are interposed therebetween. The opposing parts may be referred to as narrow parts 20b.

As described above, the container main body 1 of the present embodiment has a horizontal length (extension length of the wide portion 20a) of the flange 20 on the first side L1 (mm), and a flange on the second side. When the length of 20 in the horizontal direction (extension length of the narrow portion 20b) is L0 (mm), the following relational expression (0) is established.

L1> L0 (0)

In the container body 1 of the present embodiment, the horizontal distance from the first side 11e ₁ to the tip of the wide portion 20a is L2 (mm), and the horizontal from the second side 11e ₂ to the tip of the narrow portion 20b is horizontal. When the distance in the direction is L3 (mm) and the distance in the horizontal direction from the top of the partition 13 to the tip of the narrow portion 20b is L4 (mm), the following relational expression (1) and (2) is formed.

L1> L3 (1)
L2 <L4 (2)

  In the container body of the present embodiment, the lower surface side of the bottom surface portion 11 is formed to be smaller than the opening of the housing recess 10, and a recessed shape corresponding to the protruding shape of the partition portion 13 is formed on the lower surface side. Therefore, as shown in FIG. 4, a plurality of container bodies 1 ′, 1 ″ having a common shape are connected to each other between the wide portions 20a ′, 20a ″ and the narrow portions 20b ′, 20b ″. When the edges are aligned so as to overlap each other, the lower container body 1 ′ is placed in the lower surface opening 13o ″ of the upper container body 1 ″ (hereinafter also referred to as “upper container body 1 ″”). The top portion 13t ′ of the partition portion 13 ′ (hereinafter also referred to as “lower container body 1 ′”) is inserted into the bottom portion 11 ″ and the peripheral side wall portion 12 ″ of the housing recess 10 ″ of the upper container body 1 ″. The lower part is a receiving recess 10 of the lower container body 1 '. And it is formed to fit inside of the containing space.

Furthermore, the container body 1 of the present embodiment is provided with the partition portion 13 closer to the second side. Therefore, as shown in FIG. 5, the upper container body 1 ″ is rotated 180 degrees in the horizontal plane to When the container body 1 ″ is overlapped so that the narrow part 20b ″ of the container body 1 ″ is positioned on the wide part 20a ′ of the lower container body 1 ′, the partition portion 13 ′ of the lower container body 1 ′ and the upper container body 1 ″ are stacked. Therefore, the position of the partition portion 13 ″ of the lower container body 1 ′ does not enter the lower surface opening 13o ″ of the upper container body 1 ″.
Moreover, the partition part 13 ′ of the lower container body 1 ′ has a distance (L4) from the first side 11e ₁ ″ of the upper container body 1 ″ to the tip of the wide part 20a ″. Since the distance (L2) is exceeded, as shown in FIG. 5, when the upper container body 1 ″ is rotated by 180 degrees and overlapped, the partition portion 13 ′ is placed on the bottom surface portion 11 of the upper container body 1 ″. It can be brought into contact with the "lower surface 11b".

Further, the lower container body 1 ′ has a wider width portion 20a ′ that is longer than the distance (L3) from the second side 11e ₂ ″ of the upper container body 1 ″ to the tip of the narrow width portion 20b ″ as described above. Since it has an extended length (L1), when the upper container body 1 ″ is overlapped with the edges aligned, the wide portion 20a ′ is brought into contact with the lower surface 11b ″ of the bottom surface portion 11 ″ of the upper container body 1 ″. Can be touched.

In this way, as shown in FIG. 5, the upper container body 1 ″ has the partition portion 13 ′ of the lower container body 1 ′ on the bottom surface lower surface 11b ″ on the first side 11e ₁ ″ side of the bottom surface outer edge 11e ″. Since the abutting is performed and the wide portion 20a ′ of the lower container body 1 ′ is brought into contact with the bottom surface lower surface 11b ″ on the second side 11e ₂ ″ side, the lower container body 1 ′ enters the receiving recess 10 ′. Will be blocked.

  That is, in this embodiment, when only a plurality of container main bodies are overlapped, it is possible to form a compact laminate by forming an embodiment as shown in FIG. When combining, it can suppress that a load is added to the foodstuff accommodated in the container main body of the lower stage by setting it as an aspect as shown in FIG.

Incidentally, the container main body 1 of this embodiment, securing the second side the distance from 11e ₂ to the tip of the narrow portion 20b relative to (L3), the extending length of the wide portion 20a of (L1) longer By doing so, the support of the upper container body can be made more reliable, and the load applied to the food stored in the lower container body can be more reliably suppressed.
For this reason, the extending length of the wide portion 20a (L1), relative to the distance (L3) from the second side 11e ₂ to the tip of the narrow portion 20b, long is preferably at least 5 mm, More preferably, it is 10 mm or longer.

However, if the extension length (L1) of the wide portion 20a is to be ensured more than necessary, the storage space of the container body 1 will be reduced more than necessary, so the extension length ( The difference between L1) and the distance (L3) from the second side 11e ₂ to the tip of the narrow portion 20b is preferably 30 mm or less, and more preferably 20 mm or less.

Incidentally, the same applies to the partition portion 13, the distance to the tip of the narrow portion 20b (L4) is longer than 5mm relative to the distance from the first side 11e ₁ to the tip of the wide portion 20a (L2) Preferably, it is formed at a position that is longer by 10 mm or more.

In the present embodiment, unlike the extended length (L1) of the wide portion 20a, the distance (L4) from the partition portion 13 to the tip of the narrow portion 20b is set from the first side 11e ₁ to the wide width. Even if the distance (L2) to the tip of the portion 20a is large enough, no substantial problem occurs in the storage space of the container body 1.
Therefore, what is necessary is just to determine suitably about the positional relationship of the narrow part 20b and this partition part 13 according to the magnitude | size etc. of a stored thing.

  However, if the length of the partition 13 in the extending direction is excessively short, the support of the upper container body may become unstable, and therefore the bottom surface 11b of the upper surface of the upper container body is unstable. It is preferable that the length of the portion that can be brought into contact with the bottom surface portion 11 is 1/5 or more with respect to the width W of the bottom surface portion 11, and is preferably formed to be 1/3 or more. More preferred.

In addition, when the partition portion 13 is in contact with the bottom surface bottom surface 11b of the upper container body in the width direction of the container body, the support of the upper container body is unstable. Therefore, it is preferable that the contact position with the bottom surface portion 11 is provided at least in the central portion in the width direction.
In addition, instead of such an aspect, a partition portion is formed in which the height of both end portions in the extending direction is higher than that of the central portion, and the bottom portion of the upper container body is supported by these two high points. It is also possible to stabilize the support state.

Therefore, as shown in FIG. 6, the partition part may be a plurality of broken lines arranged in the width direction of the container body, and does not need to be linear with respect to the width direction.
That is, in the container body, for example, even when the shape of the partition portion in a top view is an arc shape or a corrugated shape, the bottom portion of the housing recess of another container body stacked on top enters the housing space. Can be blocked by the partition.

The container body of the present embodiment can be used alone as a food container, or can be used as a food container in a wrapped state, or as a food container with a lid. it can.
In the present embodiment, a container body produced by subjecting a foam sheet to a sheet molding method is illustrated, but the container body in the present invention uses a thermoplastic resin film or a laminated foam sheet other than the foam sheet. In addition to being manufactured, it can also be manufactured by injection molding or the like.
Furthermore, the container body in the present invention may be a bead foam molded product.

  Here, the detailed description is not repeated any more, but even for matters not specifically exemplified above, the conventionally known technical matters regarding the food container are not limited to the extent that the effect of the present invention is not significantly impaired. It can also be used in the design.

1: container main body, 10: receiving recess, 10e: opening edge, 11: bottom surface portion, 11e: bottom surface outer edge, 11e ₁ : first side, 11e ₂ : second side, 12: peripheral side wall, 12t: upper edge , 13: partition part, 13t: top part, 20: collar part, 20a: wide part, 20b: narrow part

Claims (1)

The container body is provided with a tray-shaped container body whose contour shape in a plan view is rectangular, the container recessed part opened on the upper surface side, and a flange extending outward from the opening edge of the container recessed part, A bottom surface portion on which food is placed on the upper surface side and a peripheral side wall portion that rises outward from the outer edge of the bottom surface portion and defines the opening edge by an upper end edge are provided in the housing recess, and the opening of the housing recess The container for food storage in which the shape of the edge is a rectangle smaller than the contour shape, and the outer edge shape of the bottom portion is a rectangle smaller than the opening edge,
The accommodation recess is further provided with a partition portion that has a height corresponding to the peripheral side wall portion, projects upward from the bottom surface portion, extends in a rib shape, and partitions the internal space of the accommodation recess,
The container body has a plurality of containers in which a lower surface side of the bottom surface portion is formed smaller than the opening of the housing recess, and a recessed shape corresponding to the protruding shape of the partition portion is formed on the lower surface side. When stacking the main body up and down, a part of the bottom surface portion and the peripheral side wall portion of the upper container body can be accommodated in the accommodating recess of the lower container body,
The partition is provided at a position where the distance between the first short side of the two short sides facing each other in the rectangle defining the outer edge of the bottom surface is longer than the distance from the second side, and the partition is Extending along a direction parallel to the short side,
The length of the flange extending outward from the peripheral side wall rising from the first side is longer than the length of the flange extending outward from the peripheral side wall rising from the second side,
The length of the flange on the first side is (L1),
The distance in the horizontal direction from the first side to the tip of the collar (L2),
The distance in the horizontal direction from the second side to the tip of the collar (L3), and
When the distance in the horizontal direction from the partition part to the tip of the flange on the second side is (L4), the following relational expressions (1) and (2) are satisfied: .

L1> L3 (1)
L2 <L4 (2)

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