Container

Abstract

To provide a container capable of suppressing contact with a recycled plastic-containing material.SOLUTION: And an inner vessel 40 which has an inner wall 50 and an inner bottom 20b 60, is formed of a material, and can be housed inside the main body vessel 10, wherein lateral ribs 21, 22, and 23 projecting outward from an upper end edge of the main body sidewall 20 and extending along the upper end edge, and a vertical rib 24 projecting outward and extending in a vertical direction are formed on an outer surface sidewall of the main body sidewall 20, the height of the inner wall (50) in the vertical direction is such that the upper edge of the inner wall (50) is at least as high as the upper edge of the main body side wall (20) when the inner container (40) is contained in the main body container (10) and the outer surface (60b) of the inner bottom wall (60) is in contact with the inner surface (30a) of the main body bottom wall (30), and a fixing means for fixing the main body container (10) and the inner container (40) is provided.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a container for storing foodstuffs such as vegetables and fruits. [Background technology]

[0002] Containers are often used to sort and transport foodstuffs such as vegetables and fruits from production areas to sales outlets. Containers are ideal for storing foodstuffs because they have a large capacity, are easy to stack, and are strong.

[0003] However, due to the growing concern about environmental issues in recent years, there is a demand for using recycled plastic-containing materials containing discarded resin materials as materials for molding containers. However, since it is difficult to identify the substances contained in recycled plastic-containing materials, they may not be suitable for use as containers for storing food that come into direct contact with food. Therefore, when molding containers for storing food using recycled plastic-containing materials, it is necessary to devise a way to prevent direct contact between the container and food.

[0004] It is known to attach a sheet layer to the inner surface of a container to prevent the contents from coming into direct contact with the container. Patent Document 1 describes an invention relating to a container for storing a makeup remover sheet impregnated with a cleanser containing an oil component. In this container, an oil-resistant barrier layer is provided on the inner surface of a base layer made of polyolefin or polystyrene. The container is formed by insert molding, in which a sheet molded body for forming the barrier layer is set in a mold and a molding resin for forming the base layer is injected into the mold. By laminating the sheet layer as a barrier layer on the inner surface of the container by insert molding, deformation of the container caused by the oil component of the makeup remover sheet is suppressed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6128545 Summary of the Invention [Problem to be solved by the invention]

[0006] Containers for storing food ingredients are generally larger than those for storing makeup remover sheets. They often have side walls that rise perpendicularly to the bottom wall. When an inner sheet layer is insert-molded into such a container, twisting easily occurs in the inner sheet layer at the boundary between the bottom wall and the side wall, making it difficult to control the quality of the inner sheet layer. This makes it difficult to maintain the physical properties required for a food container. There is a demand for a food container that can minimize contact with materials containing recycled plastic. [Means for solving the problem]

[0007] In order to solve the above problems, the container of the present invention is a container for storing food ingredients, comprising a main container having main side walls and a main bottom wall and made of a material containing recycled plastic, and an inner container having an inner wall and an inner bottom wall and made of a virgin material that can be stored inside the main container, wherein the outer surface of the main side wall is formed with horizontal ribs that protrude outward from the upper edge of the main side wall and extend along the upper edge of the main side wall, and vertical ribs that protrude outward and extend in the vertical direction, the vertical height of the inner wall is such that when the inner container is stored inside the main container and the outer surface of the inner bottom wall abuts the inner surface of the main bottom wall, the upper edge of the inner wall is positioned at a height equal to or higher than the upper edge of the main side wall, and a fixing means is provided for fixing the main container and the inner container.

[0008] According to the above configuration, when the inner container is housed inside the main container, the inner surface of the main body side wall is covered by the inner wall. Therefore, when food is housed inside the inner container, contact between the main container made of recycled plastic-containing material and the food is suppressed. Furthermore, when housed, the inner container is fixed to the main container, so unintentional separation of the inner container and the main container is suppressed.

[0009] In the above configuration, the fixing means is preferably an engagement means that detachably engages and fixes the main container and the inner container. According to the above configuration, the inner container can be detached from the main container. For example, it is easy to move the inner container by itself, to store the inner container in a different main container, or to select a main container depending on the type of food, improving the convenience of the container.

[0010] In the above configuration, an inner flange portion that protrudes outward is formed on the upper edge of the inner wall, and the lower surface of the inner flange portion abuts against the upper edge of the main body side wall in the stored state, and it is preferable that the engaging means is composed of an engaging portion formed on the inner flange portion and an engaged portion that is provided at the upper end of the main body side wall and with which the engaging portion engages.

[0011] In the above configuration, the engaged portion is preferably the horizontal rib. In the above configuration, it is preferable that a first extension portion is formed at the tip of the inner flange portion, extending downward from the outer surface of the main body side wall in the stored state, and that the engaging portion is the first extension portion and the engaged portion is the horizontal rib.

[0012] In the above configuration, it is preferable that the inner flange portion has a second extension portion that extends downward between adjacent vertical ribs in the accommodated state, and that the engaging portion is the second extension portion and the engaged portion is the vertical rib.

[0013] In the above configuration, it is preferable that an inner flange portion protruding outward is formed on the upper edge of the inner wall, and the engagement means is composed of a convex portion formed on one of the inner flange portion and the transverse rib, and a hole formed on the other.

[0014] According to each of the above configurations, the main container and the inner container are detachably engaged by the engagement between the engaging portion provided on the inner container and the engaged portion provided on the main container. Therefore, there is no need to provide a separate engaging means. This reduces the number of parts, which is advantageous in terms of cost.

[0015] In the above configuration, the fixing means is preferably provided on the outer surface of the inner wall and the inner surface of the main body side wall. According to the above-mentioned configuration, the inner wall is fixed to the side wall of the main body, and the storage state of the inner container is stabilized. [Effects of the Invention]

[0016] According to the present invention, a container for storing food ingredients can be obtained that can prevent contact with materials containing recycled plastics. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a container according to this embodiment. [Figure 2] FIG. 2 is a partial cross-sectional view taken along line XX. [Figure 3] FIG. 3 is a partial cross-sectional perspective view taken along line YY. [Figure 4] FIG. 4 is a diagram illustrating an engaging means according to a modified example. [Figure 5] FIG. 5 is a diagram illustrating an engaging means according to a modified example. [Figure 6] FIG. 6 is a diagram illustrating an engaging means according to a modified example. [Figure 7] FIG. 7 is a diagram illustrating an inner container according to a modified example. [Figure 8] FIG. 8 is a diagram illustrating an inner container according to a modified example. [Figure 9] FIG. 9 is a diagram illustrating an inner container according to a modified example. [Figure 10] FIG. 10 is a diagram illustrating an inner container according to a modified example. [Figure 11] FIG. 11 is a diagram illustrating a container according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0018] A container according to one embodiment of the present invention will now be described. The container 1 of this embodiment is used as a food container for storing and transporting food such as vegetables and fruits.

[0019] 1 and 2, the container 1 includes a main container 10 made of a material containing recycled plastic, and an inner container 40 made of a virgin material. The inner container 40 can be accommodated inside the main container 10.

[0020] <About the main container 10> As shown in Figures 1 and 2, the container body 10 is a rectangular box consisting of four side walls 20 and one bottom wall 30. Its dimensions are approximately 25 cm in the short direction, approximately 50 cm in the long direction, and approximately 15 cm in height. The angle between the side walls 20 and the bottom wall 30 is approximately 85°, which is close to a right angle. The upper part of the side wall 20 forms an opening that opens upward.

[0021] The thickness of the main body side wall 20 and main body bottom wall 30 of the main container 10 is preferably 2 to 4 mm, and more preferably 2 to 2.5 mm. The outer surface 20b of the main body side wall 20 is formed with a plurality of transverse ribs, namely, a first transverse rib 21, a second transverse rib 22, and a third transverse rib 23, which protrude outward from the main body side wall 20. The first transverse rib 21 protrudes outward from the upper edge of the main body side wall 20 and extends along the upper edge. The second transverse rib 22 is formed near the first transverse rib 21. Specifically, it extends parallel to the first transverse rib 21 at a position approximately 2 cm below the first transverse rib 21. The third transverse rib 23 protrudes outward from the lower edge of the main body side wall 20 and extends along the lower edge. The first transverse rib 21, the second transverse rib 22, and the third transverse rib 23 extend parallel to the main body bottom wall 30. The first transverse rib 21, the second transverse rib 22, and the third transverse rib 23 all protrude approximately 1.5 cm from the main body side wall 20.

[0022] As shown in Figure 2, multiple vertical ribs 24 are formed on the outer surface 20b of the main body side wall 20. These vertical ribs 24 extend in the vertical direction and are perpendicular to the first horizontal rib 21, the second horizontal rib 22, and the third horizontal rib 23. The multiple vertical ribs 24 extend parallel to one another. Each of the multiple vertical ribs 24 protrudes from the main body side wall 20 by approximately 1.5 cm.

[0023] As shown in Figure 2, a plurality of bottom ribs 31 are formed on the outer surface 30b of the bottom wall 30 of the main body, projecting downward from the bottom wall 30. The bottom ribs 31 are composed of a plurality of bottom ribs 31 extending in the short direction of the bottom wall 30 of the main body and a plurality of bottom ribs 31 extending in the long direction. The bottom ribs 31 extending in the short direction and the bottom ribs 31 extending in the long direction are perpendicular to each other. The protruding length of each of the plurality of bottom ribs 31 from the bottom wall 30 of the main body is approximately 1 cm.

[0024] The main container 10 is formed by injection molding a mixed material obtained by mixing a virgin material made of, for example, polypropylene resin with a recycled plastic material containing polypropylene resin and polyethylene resin. The recycled plastic material mixed into the mixed material is used as a used synthetic resin product that has been subjected to processing such as crushing. The mixed material is a non-uniform mixture of polyethylene resin, vinyl chloride resin, etc. with polypropylene resin as the main component. Examples of polypropylene resin include block polypropylene resin, random polypropylene resin, and homopolypropylene resin. The main component of the mixed material is preferably the same as the virgin material that forms the inner container 40, which will be described later.

[0025] The content of polypropylene resin as a recycled plastic material in the mixed material is preferably 70 to 99%, more preferably 80 to 99%, and even more preferably 90 to 99%. The content of recycled plastic materials other than polypropylene resin in the mixed material is preferably 1 to 30%, more preferably 1 to 20%, and even more preferably 1 to 10%.

[0026] The recycled plastic material in the mixed material is not limited to recycled container material obtained by crushing a container of a known shape having ribs on the sidewall, such as the main container 10 of this embodiment, but may also be appropriately selected and used from recycled container packaging materials, recycled automobile parts materials, recycled home appliance parts materials, etc. It is preferable that the recycled plastic material is primarily recycled container material, and that the other recycled materials listed above are mixed in such that their content is less than that of the recycled container material. The content of recycled container material is preferably 50 to 90%, more preferably 60 to 90%, and even more preferably 70 to 90%. The content of other recycled materials is preferably 10 to 50%, more preferably 10 to 40%, and even more preferably 10 to 30%. It is also possible for the mixed material to be 100% recycled container material.

[0027] Since the main container 10 is made of a material containing recycled plastic (mixed material), its color is gray, black, or the like. <Regarding the inner container 40> 1 and 2, the inner container 40 is a rectangular parallelepiped box made up of four inner walls 50 and one inner bottom wall 60. Its size is slightly smaller than the main container 10 and can be accommodated inside the main container 10. The upper part of the inner wall 50 forms an opening that opens upward.

[0028] 2 and 3, an inner flange portion 51 is formed at the upper end of the inner wall 50, and projects outward from the upper edge of the inner wall 50. The inner flange portion 51 is formed around the entire circumference of the inner wall 50. A first extension portion 52 is formed at the tip of the inner flange portion 51, and extends downward from the tip edge of the inner flange portion 51. The first extension portion 52 is formed around the entire circumference of the inner flange portion 51.

[0029] 1 to 3, a plurality of engaging protrusions 54 are formed on the upper part of the first extending portion 52, protruding inward from the inner surface 52a of the first extending portion 52. The engaging protrusions 54 are formed as ridges extending parallel to the inner flange portion 51.

[0030] As shown in Figure 2, the inner wall 50 is slightly inclined in the vertical direction. The inclination of the inner wall 50 is smaller than the inclination of the main body side wall 20 of the main container 10. The distance between the outer surface 50b of the inner wall 50 and the inner surface 20a of the main body side wall 20 gradually increases downward. The boundary between the inner wall 50 and the inner bottom wall 60 is located inside the boundary between the main body side wall 20 and the main body bottom wall 30.

[0031] The vertical height of the inner wall 50 is approximately the same as the vertical height of the main body side wall 20. The width of the inner flange portion 51 is slightly wider than the width of the first horizontal rib 21. The width of the first extension portion 52 is slightly wider than the distance between the first horizontal rib 21 and the second horizontal rib 22. The position where the engaging protrusion 54 is formed is a position displaced downward from the upper edge of the first extension portion 52 by approximately the thickness of the first horizontal rib 21.

[0032] The thickness of the inner wall 50 and inner bottom wall 60 of the inner container 40 is thinner than the thickness of the main body side wall 20 and main body bottom wall 30 of the main container body 10. The thickness of the inner wall 50 and inner bottom wall 60 is preferably 1 to 3 mm, and more preferably 1.5 to 2 mm.

[0033] The inner container 40 is formed from a virgin material. The material is not particularly limited and can be appropriately selected from conventionally known thermoplastic resins and thermosetting resins. Examples include thermoplastic resins such as polypropylene resin, polyethylene resin, polystyrene resin, polyurethane resin, and polyethylene terephthalate resin, and thermosetting resins such as phenolic resin, epoxy resin, melamine resin, and polyurethane resin. The molding method is also not particularly limited and can be appropriately selected from conventionally known methods such as vacuum molding, press molding, and injection molding.

[0034] The color of the inner container 40 is, for example, red, orange, yellow, green, blue, transparent, etc. It is also preferable that the color of the inner container 40 is brighter than that of the main container 10. <About the function of Container 1> The inner wall 50 is slightly inclined in the vertical direction, and the vertical height of the inner wall 50 is approximately the same as the vertical height of the main body side wall 20. When the inner container 40 is housed inside the main container 10, the outer surface 50b of the upper end of the inner wall 50 abuts against the inner surface 20a of the upper end of the main body side wall 20, while the distance between the outer surface 50b of the inner wall 50 and the inner surface 20a of the main body side wall 20 gradually increases downward.

[0035] Furthermore, the outer surface 60b of the inner bottom wall 60 abuts against the inner surface 30a of the main body bottom wall 30, and the upper edge of the inner wall 50 is at approximately the same position as the upper edge of the main body side wall 20. In other words, when the inner container 40 is housed inside the main body container 10 and the outer surface 60b of the inner bottom wall 60 abuts against the inner surface 30a of the main body bottom wall 30 (hereinafter sometimes simply referred to as the housed state), the entire inner surface 20a of the main body side wall 20 is covered by the inner wall 50. When an item is housed inside the inner container 40, the item does not come into contact with the main body container 10.

[0036] The lower surface 51b of the inner flange portion 51 abuts against the upper surface 21a of the first transverse rib 21, and the engaging protrusions 54 formed on the first extending portion 52 engage with the first transverse rib 21. The engagement between the engaging protrusions 54 and the first transverse rib 21 detachably fixes the main container 10 and the inner container 40. The engaging protrusions 54 of the first extending portion 52 formed on the inner flange portion 51 function as the engaging portion, and the first transverse rib 21 functions as the engaged portion.

[0037] The width of the first extension portion 52 formed around the entire circumference of the inner flange portion 51 is slightly wider than the distance between the first transverse rib 21 and the second transverse rib 22. Therefore, in the stored state, the first extension portion 52 covers the first transverse rib 21 and the second transverse rib 22. Also, in the stored state, the lower edge of the first extension portion 52 is located at approximately the same height as the second transverse rib 22. When the container 1 is being transported, the first transverse rib 21 and the second transverse rib 22 are not exposed to the outside, and the lower surface of the second transverse rib 22 serves as a support surface when the container is supported by fingers.

[0038] The container 1 of this embodiment provides the following effects. (1) The container 1 comprises a main container 10 made of a material containing recycled plastics and an inner container 40 made of a virgin material. The vertical height of the inner wall 50 is such that the upper edge of the inner wall 50 is at approximately the same level as the upper edge of the main side wall 20 when the inner container 40 is housed inside the main container 10 and the outer surface 60b of the inner bottom wall 60 is in contact with the inner surface 30a of the main bottom wall 30.

[0039] Therefore, when food is placed inside the inner container 40, contact between the main container 10 made of recycled plastic-containing material and the food is suppressed. Even if the substances contained in the recycled plastic material are unknown, food can be safely stored.

[0040] (2) The container 1 is provided with an engagement means for detachably engaging and fixing the main container 10 and the inner container 40. Therefore, in the stored state, unintentional separation of the inner container 40 and the main container 10 is suppressed. Also, the inner container 40 can be easily removed from the main container 10. This improves the convenience of the container 1.

[0041] (3) The engaging means is composed of the engaging protrusion 54 of the first extending portion 52 formed on the inner flange portion 51 and the first horizontal rib 21 formed on the upper edge of the main body side wall 20. Therefore, there is no need to provide a separate means for fixing the inner container 40 to the main container 10. This reduces the number of parts, which is advantageous in terms of cost.

[0042] (4) The outer surface 20b of the main body side wall 20 is formed with a first horizontal rib 21, a second horizontal rib 22, a third horizontal rib 23, and a vertical rib 24, which protrude outward from the main body side wall 20. In addition, the outer surface 30b of the main body bottom wall 30 is formed with a plurality of bottom ribs 31, which provides a reinforcing effect for the main container 10.

[0043] The above embodiment can be modified as follows: The above embodiment and the following modifications can be applied in combination with each other within the scope of technical compatibility. The shape, number, and position of the engaging protrusions 54 may be changed as appropriate.

[0044] The inner flange portion 51 does not have to be formed along the entire circumference of the inner wall 50. For example, it may be formed in a plurality of locations in accordance with the positions where the engaging protrusions 54 are formed. The first extending portion 52 does not have to be formed around the entire circumference of the inner flange portion 51. For example, it may be formed in a plurality of locations corresponding to the positions where the engaging protrusions 54 are formed.

[0045] As shown in Fig. 4, instead of the first extending portion 52 extending downward from the tip edge of the inner flange portion 51, a second extending portion 53 extending downward and inward from the tip edge of the inner flange portion 51 may be formed. In this case, a hole 25 penetrating in the vertical direction is formed in the second horizontal rib 22 of the main container body 10. In the stored state, by inserting the tip end of the second extending portion 53 into the hole 25, the inner container 40 can be detachably engaged with and fixed to the main container body 10.

[0046] The second extending portion 53 extending downward and inward from the leading edge of the inner flange portion 51 may be arranged along the vertical ribs 24 between adjacent vertical ribs 24 formed on the main container body 10. In this case, the second extending portion 53 functions as an engaging portion, and the vertical ribs 24 function as an engaged portion.

[0047] As shown in FIG. 5, the first extending portion 52 may be shaped so that the first horizontal rib 21 is sandwiched between the first extending portion 52 and the inner flange portion 51 . As shown in FIG. 6, downwardly protruding convex portions 55 may be formed on the inner flange portion 51, and holes 26 may be formed in the first horizontal rib 21 so as to penetrate in the vertical direction. The size of the holes 26 is, for example, approximately 10 mm x approximately 5 mm. The holes 26 are formed at intervals of approximately 10 cm. The size of the convex portions 55 is slightly smaller than the holes 26, and the intervals between the convex portions 55 are also approximately 10 cm. In the stored state, the convex portions 55 can be inserted into the holes 26 to detachably engage and fix the inner container 40 to the main container 10.

[0048] The position where the protrusion 55 in Fig. 6 is formed may be changed. For example, the protrusion 55 may be formed on the first transverse rib 21. In this case, an upward protrusion is formed on the inner flange portion 51 so that the protrusion 55 can be inserted and engaged.

[0049] 4 and 6, a recessed portion that does not penetrate in the vertical direction may be formed. In this case, the tip of the second extending portion 53 or the protruding portion 55 may engage with the recessed portion. A means other than the engagement means described above may be used as a fastening means for fastening the inner container 40 to the main container 10. For example, as a detachable fastening means, adhesive tape or hook-and-loop fasteners may be used to fasten the inner surface 30a of the main bottom wall 30 of the main container 10 to the outer surface 60b of the inner bottom wall 60 of the inner container 40. Furthermore, as a non-detachable fastening means, adhesives or welding may be used.

[0050] 7, the inner flange portion 51 of the inner container 40 may be omitted. In this case, the height in the vertical direction of the inner wall 50 of the inner container 40 may be such that the upper edge of the inner wall 50 is at or above the height of the upper edge of the main body side wall 20 when the inner container 40 is accommodated inside the main container 10 and the outer surface 60b of the inner bottom wall 60 abuts against the inner surface 30a of the main body bottom wall 30.

[0051] 8, the first extension portion 52 does not have to be formed on the inner flange portion 51. In this case, the width of the inner flange portion 51 may be narrower or wider than the width of the first transverse rib 21.

[0052] 9, the width of the first extending portion 52 may be narrower than the distance between the first horizontal rib 21 and the second horizontal rib 22. Even in this case, the first extending portion 52 is formed, and the first extending portion 52 engages with the first horizontal rib 21, thereby fixing the inner container 40 to the main container 10.

[0053] 10, the first extension 52 may be approximately the same as the vertical height of the inner wall 50. In other words, the vertical height of the first extension 52 may be approximately the same as the vertical height of the main body side wall 20. In this case, the outer surface 20b of the main body side wall 20 is covered by the first extension 52 of the inner container 40. By selecting an appropriate color for the inner container 40 made of virgin material, it is possible to select a container 1 of a desired color depending on the type of food material to be stored.

[0054] When the first extending portion 52 has the shape shown in Fig. 10, the position of the engaging protrusion 54 may be changed as appropriate. For example, it may be formed in a position where it can engage with the second transverse rib 22, or in a position where it can engage with the third transverse rib 23. Furthermore, a protrusion 55 as shown in Fig. 6 may be formed at the tip of the first extending portion 52, which is capable of engaging with the second transverse rib 22 or the third transverse rib 23.

[0055] 11, an outer container 70 may be disposed outside the main container 10. In other words, an outer container 70 capable of housing the main container 10 may be provided. The size and shape of the container 1 are not limited to those described above. For example, the main container 10 may not have at least one of the first horizontal rib 21, the second horizontal rib 22, and the third horizontal rib 23. The number of vertical ribs 24 may be more or less than that of the container 1. Furthermore, the bottom rib 31 may not be formed.

[0056] The container body 10 may be a foldable container. The foldable container may have a body side wall 20 connected to the longitudinal edge of the bottom wall 30 and a body side wall 20 connected to the lateral edge. The longitudinal side wall 20 and the lateral side wall 20 can be folded toward the bottom wall 30.

[0057] Another example of a collapsible container shape is one in which a side wall that can be folded into an L-shape is provided between a lower bottom wall and an upper mouth frame. The L-shape collapsible side wall is connected to the longitudinal edge of the bottom wall and to the longitudinal portion of the mouth frame. A fan is also connected to the shorter side of the mouth frame.

[0058] A plurality of through holes may be formed in the main body side wall 20 of the main container 10. The through holes contribute to reducing the weight of the container 1, improving breathability, draining water, etc. The through holes are, for example, rectangular with a size of about 5 cm x 0.5 cm. The area of ​​the through holes is 2.0 to 5.0 cm. 2 It is preferable that the degree of

[0059] A plurality of through holes may be formed in the inner wall 50 of the inner container 40. The through holes contribute to reducing the weight of the container 1, improving breathability, draining water, etc. The through holes are, for example, circular and have a diameter of about 0.3 cm. The area of ​​the through holes is 0.03 to 0.3 cm. 2 When multiple through-holes are also formed in the main side wall 20 of the main container 10, the through-holes of the inner container 40 are preferably smaller than the through-holes of the main container 10, and are about 0.006 to 0.15 times the size of the through-holes of the main container 10.

[0060] The inner container 40 may have a handle attached to the top of the inner wall 50 thereof. The main body sidewall 20 of the main container 10 may have a plurality of through-holes formed therein, and the inner container 40 may be made of a flexible sheet material. In this case, the inner container 40 may be adhered to the main body sidewall 20 by suction through the through-holes in the main body sidewall 20.

[0061] The material constituting the main container 10 in the above embodiment has been described as a recycled plastic-containing material, which is a mixed material obtained by mixing a virgin material made of polypropylene resin with a recycled plastic material containing polypropylene resin. However, the recycled plastic-containing material may not be a mixed material, but may be one that contains 100% recycled plastic.

[0062] In the above embodiment, the mixed material preferably contains 70 to 99%, more preferably 80 to 99%, and even more preferably 90 to 99% polypropylene resin as a recycled plastic material. However, the content of polypropylene resin as a recycled plastic material in the mixed material may be 100%.

[0063] The inner container 40 molded from virgin material does not have to be molded entirely from virgin material. For example, it may have a laminated structure of virgin material / recycled plastic-containing material / virgin material. It is sufficient that virgin material is laminated on the inner surface 50a of the inner wall 50 and the inner surface 60a of the inner bottom wall 60 of the inner container 40.

[0064] The inner container 40 may be formed by vacuum forming or press forming a sheet material made of virgin material. The sheet material may not be made of 100% virgin material, but may have the above-mentioned laminated structure.

[0065] The technical ideas that can be understood from the above embodiment will be described below. (i) A container comprising a main container having a main side wall and a main bottom wall and made of a material containing recycled plastic, and an inner container having an inner wall and an inner bottom wall that can be accommodated inside the main container, wherein the vertical height of the inner wall is such that when the inner container is accommodated inside the main container and the outer surface of the inner bottom wall abuts against the inner surface of the main bottom wall, the upper edge of the inner wall is at a height equal to or higher than the upper edge of the main side wall, and wherein a fixing means is provided to fix the main container and the inner container, and the fixing means is provided on the outer surface of the inner wall and the inner surface of the main side wall.

[0066] (ii) The container described in (i), wherein the fixing means is at least one of bonding the main container and the inner container, welding the main container and the inner container, and hook-and-loop fasteners provided on the main container and the inner container. [Explanation of symbols]

[0067] 1...Container 10...Main container 20...Main body side wall 21...First horizontal rib (engaged portion) 22...Second horizontal rib (engaged portion) 24...Vertical rib (engaged portion) 25, 26...hole 30...Bottom wall of main body 40…Inner container 50...Inner wall 51...Inner flange 52...First extension part (engaging part) 53...Second extension part (engaging part) 54...Engagement protrusion (engagement portion) 55...Convex portion (engagement portion) 60...Inner bottom wall

Claims

1. a main body container having a main body side wall and a main body bottom wall and formed from a material containing recycled plastic; an inner container having an inner wall and an inner bottom wall, the inner container being made of a virgin material and capable of being accommodated inside the main container; A container for storing food ingredients, comprising: The outer surface of the side wall of the main body is formed with horizontal ribs that protrude outward from the upper edge of the side wall of the main body and extend along the upper edge of the side wall of the main body, and vertical ribs that protrude outward and extend in the vertical direction, the height of the inner wall in the vertical direction is such that, when the inner container is accommodated inside the main container and the outer surface of the inner bottom wall abuts against the inner surface of the main body bottom wall, the upper edge of the inner wall is positioned at a height equal to or higher than the upper edge of the main body side wall; A container characterized in that a fixing means is provided for fixing the main container and the inner container together.

2. 2. The container according to claim 1, wherein the fixing means is an engaging means for detachably engaging and fixing the main container and the inner container together.

3. An inner flange portion that protrudes outward is formed on the upper edge of the inner wall, a lower surface of the inner flange portion abutting against an upper edge of the main body side wall in the accommodated state; 3. The container according to claim 2, wherein the engaging means comprises an engaging portion formed on the inner flange portion and an engaged portion provided on the upper end of the main body side wall with which the engaging portion engages.

4. 4. The container according to claim 3, wherein the engaged portion is the transverse rib.

5. a first extension portion is formed at a tip of the inner flange portion and extends downward from an outer surface of the main body side wall in the accommodated state; the engaging portion is the first extending portion, 4. The container according to claim 3, wherein the engaged portion is the transverse rib.

6. The inner flange portion has a second extension portion formed thereon, the second extension portion extending downward between adjacent vertical ribs in the accommodated state, the engaging portion is the second extending portion, 4. The container according to claim 3, wherein the engaged portion is the vertical rib.

7. An inner flange portion that protrudes outward is formed on the upper edge of the inner wall, 3. The container according to claim 2, wherein the engaging means comprises a protrusion formed on one of the inner flange portion and the transverse rib, and a hole formed on the other.

8. 2. The container according to claim 1, wherein said fastening means is provided on the outer surface of said inner wall and on the inner surface of said main body side wall.

Images