Food packaging container with inner tray

Abstract

To provide a food packaging container with an inner plate that can easily and reliably transfer side food material without separating the inner plate from a container body to the best of the possibility.SOLUTION: A food packaging container 1 includes: a container body 10 containing main food material and having an outer peripheral flange portion 20 at an upper opening 15; an inner plate 30 having an inner plate holding flange portion 40 that houses side food material and is held by the outer peripheral flange portion of the container body; and a top member 50 covering the upper opening of the container body and the inner plate. The top member has a knob portion 56 that serves as an opening portion on one side, and is joined to the outer peripheral flange portion of the container body and an opening-side inner plate holding flange portion 40a of the inner plate. When opening via the knob part of the top member, the top member is peeled off from an opening-side outer peripheral flange portion 20a of the container body while maintaining the connection with the inner plate holding flange portion on the opening side of the inner plate, the opening side of the inner plate is lifted together with the knob portion and the side food material housed in the inner plate is introduced into the container body.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a food packaging container with a tray. [Background technology]

[0002] In recent years, the types of food and drink sold at convenience stores and the like have become extremely diverse, expanding from prepared dishes, bento lunches, sandwiches, etc. to salads, desserts, noodles, and other processed foods. When selling such foods, food packaging containers in the form of a container body made of a synthetic resin sheet and a lid body superimposed thereon are often used.

[0003] Of the foods listed above, bento boxes are generally packaged and sold with all ingredients in one container. This is because the processing and cooking methods used allow the flavors of the ingredients to blend well together, resulting in a delicious overall taste. Also, the moisture content of the ingredients used is relatively consistent. In contrast, in the case of noodles, mainly soba, udon, pasta, etc., the noodles and the toppings placed on top are sometimes mixed together at the time of production. However, there may be a difference in moisture content between the noodles and the toppings placed on top. As a result, the noodles are already soggy when eaten, and the taste is likely to deteriorate. In recent years, there has been an increasing demand for better taste, and this is an issue that cannot be overlooked by retailers and sellers in order to differentiate themselves from other businesses and achieve customer satisfaction.

[0004] As a relatively simple solution, there is a container that further uses an inner plate (inner lid) inside a container consisting of a container body and a lid (see, for example, Patent Document 1). With this food packaging container with inner plate, for example, a main ingredient such as noodles is stored at the bottom of the container body, the inner plate is placed at the opening of the container body, appropriate side ingredients such as toppings are placed on this inner plate, and finally the lid is put on. With this container, it is possible to prevent the ingredients from mixing together before eating, and to bring the taste closer to that of freshly cooked food. In addition, the topping ingredients are arranged on the inner plate, which also creates a visually appealing appearance.

[0005] When eating food stored in this container, the inner plate placed on the opening of the container body is lifted from the container body, and then the side ingredients such as ingredients on the inner plate are transferred to the container body by using a tool such as chopsticks or by tilting and dropping the inner plate, etc., so that the main ingredient and the side ingredients are mixed inside the container body. However, these transfer operations can be troublesome for the user, and the possibility of accidentally spilling the side ingredients cannot be eliminated.

[0006] The applicant has therefore proposed an inner plate in which two separate left and right halves are integrated by overlapping their joining surfaces (see, for example, Patent Document 2). In this inner plate, each of the halves is pulled outward above the container body, releasing the overlapping of the joining surfaces, and the halves are separated, causing the side ingredients placed on the inner plate to fall into the container body. This allows the side ingredients to be transferred to the container body in a simple procedure without using tools such as chopsticks. Further structural improvements are required for this type of food packaging container with inner plate, in order to make it easier and more reliable to transfer the side ingredients from the inner plate. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Utility Model Registration No. 3133098 [Patent Document 2] JP 2019-89567 A Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in consideration of these points, and provides a food packaging container with an inner tray that allows side ingredients to be transferred easily and reliably without having to separate the inner tray from the container body as much as possible. [Means for solving the problem]

[0009] That is, the invention of claim 1 is a food packaging container comprising a container body for containing a main ingredient and having an outer peripheral flange at an upper opening, an inner plate for containing a side ingredient and having an inner plate holding flange held by the outer peripheral flange of the container body, and a top member for covering the upper opening of the container body and the inner plate, A step portion is formed on the inner peripheral side of the outer peripheral flange of the container body, and the inner plate holding flange of the inner plate is placed on the step portion, The top member has a knob portion on one side that serves as the opening portion, and is joined to the outer peripheral flange of the container body and the inner plate holding flange on the opening side of the inner plate, and when the container is opened via the knob portion of the top member, the top member is peeled off from the outer peripheral flange on the opening side of the container body while maintaining its connection to the inner plate holding flange on the opening side of the inner plate, and the opening side of the inner plate is lifted together with the knob portion, allowing side ingredients contained in the inner plate to be introduced into the container body.

[0010] The invention of claim 2 relates to a food packaging container with an inner plate as described in claim 1, wherein the inner plate has an inner plate introduction flange connected between both ends of the inner plate holding flange and positioned above the upper opening of the container body, and when the container is opened via the knob portion of the top surface member, side ingredients contained in the inner plate are introduced into the container body from the inner plate introduction flange side.

[0011] The invention of claim 3 relates to a food packaging container with an inner plate as described in claim 2, in which the inner plate introduction flange of the inner plate is connected to both ends of the inner plate holding flange via a cutout portion.

[0012] The invention of claim 4 relates to a food packaging container with an inner tray according to claim 2 or 3, wherein the inner tray side wall portion on the introduction side of the inner tray is configured to be inclined toward the inner tray introduction flange portion.

[0013] The invention of claim 5 relates to the food packaging container with inner tray as set forth in claim 4, in which a guide portion is formed by partially bulging outward on the side wall portion of the introduction side inner tray.

[0014] The invention of claim 6 relates to a packaging container for food with an inner plate as described in any one of claims 2 to 5, in which a guide recess that is recessed into the inside of the container is formed in the outer flange of the container body, and when opened via the knob portion of the top member, both ends of the inner plate holding flange of the inner plate are inserted into the guide recess of the container body to tilt the inner plate.

[0015] The invention of claim 7 relates to the food packaging container with an inner plate as set forth in claim 6, in which an inclined guide portion inclined toward the opening side is formed at an upper portion of the opening side of the guide recess.

[0016] Claim 8 The invention relates to claims 1 to 4, in which a side wall of the container body has a middle tray mounting step protruding toward the inside of the container, a fitting protrusion is formed on the middle tray mounting step and a fitting recess is formed on a middle tray bottom of the middle tray, and the middle tray bottom is mounted on the middle tray mounting step by fitting the fitting protrusion of the middle tray mounting step and the fitting recess of the middle tray bottom. 7 The present invention relates to a food packaging container with an inner plate as described in any one of claims 1 to 5.

[0017] Claim 9 The invention relates to claims 1 to 4, wherein the upper surface member is a top seal. 8 The present invention relates to a food packaging container with an inner plate as described in any one of claims 1 to 5. Effect of the Invention

[0018] According to the invention of claim 1, the food packaging container with inner plate comprises a container body for containing a main ingredient and having an outer peripheral flange at an upper opening, a inner plate for containing a side ingredient and having an inner plate holding flange that is held by the outer peripheral flange of the container body, and a top member that covers the upper opening of the container body and the inner plate, A step portion is formed on the inner peripheral side of the outer peripheral flange of the container body, and the inner plate holding flange of the inner plate is placed on the step portion,The top member has a knob portion on one side that serves as the opening portion, and is joined to the outer peripheral flange of the container body and the inner plate holding flange on the opening side of the inner plate.When the container is opened via the knob portion of the top member, the top member is peeled off from the outer peripheral flange on the opening side of the container body while maintaining its connection to the inner plate holding flange on the opening side of the inner plate, and the opening side of the inner plate is lifted together with the knob portion, allowing the side ingredients contained in the inner plate to be introduced into the container body.This allows side ingredients to be transferred more accurately than before, and the post-opening procedure can be omitted compared to the conventional method, allowing food to be eaten in a simpler and more efficient procedure.

[0019] According to the food packaging container with inner plate of the invention of claim 2, in the invention of claim 1, the inner plate has a inner plate introduction flange connected between both ends of the inner plate holding flange and located above the upper opening of the container body, and when the container is opened via the knob portion of the upper surface member, the side ingredients contained in the inner plate are introduced into the container body from the inner plate introduction flange side, so that the side ingredients are gathered on the inner plate introduction flange side and can be properly introduced into the inside of the container body.

[0020] According to the food packaging container with inner plate of the invention of claim 3, in the invention of claim 2, the inner plate introduction flange of the inner plate is connected to both ends of the inner plate holding flange via a cutout portion, so that when opened, the inner plate introduction flange enters the container body, making it easier to introduce side ingredients in the inner plate into the container body.

[0021] According to the food packaging container with inner plate of the invention of claim 4, in the invention of claim 2 or 3, the inner plate side wall portion on the introduction side of the inner plate is configured to be inclined toward the inner plate introduction flange portion, making it easier for the side ingredients to fall from the inner plate when being introduced inside the container body.

[0022] According to the food packaging container with inner tray of the invention of claim 5, in the invention of claim 4, a guide portion is formed by bulging outward in part of the side wall of the inner tray on the introduction side, making it easier to concentrate side ingredients in a predetermined position when the inner tray is tilted, and the side ingredients can be more accurately introduced into the inside of the container body.

[0023] According to the food packaging container with inner plate of the invention of claim 6, in the inventions of claims 2 to 5, a guide recess that is recessed into the inside of the container is formed in the outer peripheral flange of the container body, and when the container is opened via the knob portion of the top member, both ends of the inner plate holding flange of the inner plate are inserted into the guide recess of the container body to tilt the inner plate, thereby reducing interference between the end sides of the inner plate holding flange and the outer peripheral flange of the container body, making it easier to tilt the inner plate.

[0024] According to the food packaging container with inner plate of the invention of claim 7, in the invention of claim 6, an inclined guide portion inclined toward the opening side is formed at the upper part of the opening side of the guide recess, so that the inner plate introduction flange portion of the inner plate can be stably dropped into the container body.

[0025] Claim 8 According to the invention of the food packaging container with inner tray, claims 1 to 7 In the invention, the side wall portion of the container body has a middle plate mounting step protruding toward the inside of the container, an engaging convex portion is formed on the middle plate mounting step and an engaging concave portion is formed on the middle plate bottom portion of the middle plate, and the engaging convex portion of the middle plate mounting step and the engaging concave portion of the middle plate bottom portion are engaged with each other so that the middle plate bottom is placed on the middle plate mounting step, so that the middle plate can be positioned in a predetermined position and the middle plate can be prevented from sliding sideways.

[0026] Claim 9 According to the invention of the food packaging container with inner tray, claims 1 to 8 In the invention, since the upper surface member is a top seal, the inside of the container can be seen, and it can be easily joined to both the outer peripheral flange of the container body and the inner plate holding flange of the inner plate. [Brief description of the drawings]

[0027] [Figure 1] 1 is an exploded cross-sectional view of a food packaging container with an inner plate according to one embodiment of the present invention. [Diagram 2] FIG. 2 is an overall cross-sectional view of a food packaging container with an inner tray. [Diagram 3] FIG. 2 is an overall plan view of a food packaging container with a middle tray. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] 13 is an enlarged cross-sectional view of a main portion showing the relationship between the container body and the inner plate when the top member is sealed. FIG. [Figure 7] 1 is an enlarged cross-sectional view of a main portion showing the relationship between the container body and the inner plate immediately after the top member is opened. [Figure 8] 1 is a first enlarged cross-sectional view of a main part showing the relationship between the container body and the inner plate when the top member is opened. FIG. [Figure 9] A second enlarged cross-sectional view of the main parts, showing the relationship between the container body and the inner plate when the top member is opened. [Figure 10] FIG. 11 is an overall plan view of a food packaging container with a circular inner plate according to another embodiment. [Figure 11] FIG. 2 is an overall plan view of a food packaging container with an inner tray having an angular planar shape. [Figure 12] FIG. 11 is an overall plan view of a food packaging container with an inner plate having an angular plan view shape according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Container 1 according to one embodiment of the present invention shown in Figures 1 to 3 is a food packaging container with an inner tray for separately storing a plurality of ingredients, particularly among processed foods sold at convenience stores and the like, and comprises a container body 10 for storing a main ingredient, an inner tray 30 for storing a side ingredient, and an upper surface member 50. This food packaging container 1 is opened by using a tab 56 formed on one side of the upper surface member 50 as an opening part. In the following description, the opening side corresponds to the side of tab (opening part) 56 when upper surface member 50 is sealed, and the opposite side is referred to as the sealing side.

[0029] The food to be accommodated in the container 1 is not particularly limited, but examples include noodles such as soba, udon, chilled Chinese noodles, and pasta salad; donburi dishes such as oyakodon (chicken and egg on rice), Chinese rice bowls, and beef bowls; and other bento lunches such as curry rice and hayashi rice. In particular, these foods are pre-cooked and can be eaten immediately after heating in a microwave oven or the like, or as is. The main ingredients accommodated in the container body 10 include noodles and rice. The side ingredients accommodated in the inner plate include solid ingredients such as ingredients and additives, and liquid ingredients such as curry roux. The main ingredients and side ingredients are not limited to the examples listed above, and ingredients in an appropriate form are selected depending on the type of food, etc.

[0030] The food packaging container 1 is made of, for example, a synthetic resin sheet. Examples of the synthetic resin sheet constituting the container 1 include thermoplastic resin sheets such as polyethylene, polypropylene, polystyrene, and polyethylene terephthalate, and further, thermoplastic resin sheets of biodegradable resins such as polylactic acid. The synthetic resin sheets are formed into various shapes, including those shown in the drawings, by vacuum forming. The thickness of the synthetic resin sheet is appropriate, but is generally 1 mm or less.

[0031] The combination of the container body 10, inner plate 30, and upper surface member 50 that constitute the container 1 may be made of the same material or different materials. The container body 10 is not limited to flexible materials such as synthetic resin sheets, but may also be made of metal, glass, wood, or paper. The type of constituent material is appropriately selected depending on the application, contents, and packaging object.

[0032] As shown in Figs. 1 and 4, the container body 10 has a container body part 11 in which a side wall part 13 is erected from a bottom part 12 and an upper opening 15 is formed on the upper part of the side wall part 13, and an outer peripheral flange part 20 extended outward from the upper opening 15. The container body 10 is formed in an appropriate shape of tableware capable of accommodating food, such as a bowl shape, a bowl shape, a deep dish shape, etc., and is appropriately formed according to the purpose, etc., for example, a polygonal shape in a plan view such as a square or octagonal shape, a perfect circle, an ellipse, a semicircle, or other arc shape. The container body 10 shown in the figure is a bowl shape having a circular shape in a plan view. In the figure, reference numeral 16 denotes a handle part that corresponds to an opening part (grip part 56) when sealed, and is used to make it easier to open by hanging a hand (fingers) on it when opening.

[0033] 4, the outer peripheral flange 20 is integrally formed and extends outward around the entire periphery of the upper opening 15. The outer peripheral shape of the outer peripheral flange 20 may be substantially the same as or different from that of the upper opening 15. In the embodiment, the outer peripheral flange 20 has substantially the same shape as the upper opening 15, which is circular in plan view.

[0034] It is preferable that a step portion 21 is formed on the inner peripheral side of the outer circumferential flange 20. The step portion 21 corresponds to a mounting portion for the inner plate 30, and is formed at least in a range of the outer circumferential flange 20 where the inner plate 30 can be mounted. The step portion 21 is formed to an appropriate depth that allows the inner plate 30 to be positioned, for example, to be formed to a depth approximately equal to the thickness of the synthetic resin sheet that constitutes the container 1.

[0035] 1, 2, and 4, the container body 10 has an inner tray mounting step 17 on the side wall 13 of the container body 11 that protrudes toward the inside of the container and on which an inner tray 30 (described later) is mounted. A fitting protrusion 18 is formed on the inner tray mounting step 17.

[0036] 1 and 4, in this container body 10, guide recesses 25, 25 recessed toward the inside of the container are formed in the outer peripheral flange 20. As shown in Fig. 1, the guide recess 25 is a vertical groove-shaped portion of a predetermined length formed so as to recess from the outer peripheral flange 20 toward the inside of the container. In the guide recess 25, an inclined guide portion 26 inclined toward the opening side is formed at the upper part on the opening side.

[0037] As shown in Figures 1 to 3 and 5, the inner plate 30 is a component held by the outer peripheral flange 20 of the container body 10, and has an inner plate main body 31 having an inner plate side wall 33 erected from a inner plate bottom 32 and an upper opening 35 formed at the upper part of the inner plate, and an inner plate holding flange 40 extending outward from the upper opening 35 and held by the outer peripheral flange 20 of the container body 10.

[0038] The inner dish holding flange 40 is a portion that is placed on and held by the outer peripheral flange 20 of the container body 11, and is particularly preferably placed on the step 21 of the outer peripheral flange 20. Since the step 21 of the outer peripheral flange 20 has a depth that is approximately equal to the thickness of the synthetic resin sheet as described above, by placing the inner dish holding flange 40, the outer peripheral flange 20 and the inner dish holding flange 40 are configured to be approximately flush with each other.

[0039] Furthermore, the inner plate 30 has an inner plate introduction flange 41 connected between both ends of the inner plate holding flange 40 and located above the upper opening 15 of the container body 10. As shown in the figure, this inner plate introduction flange 41 is a portion that is not placed on the outer peripheral flange 20 of the container body 10, and is located at a position separated from the sealing side outer peripheral flange 20. In the figure, reference symbol 33a denotes the introduction side inner plate side wall portion of the inner plate side wall portion 33 connected to the inner plate introduction flange 41.

[0040] The inner plate 30 is disposed so that the inner plate holding flange 40 is placed on the outer peripheral flange 20 of the container body 10, and the inner plate introduction flange 41 is not placed on the outer peripheral flange 20 of the container body 10 and is positioned above the upper opening 15, so that the inner plate 30 closes a part (the opening side) of the upper opening 15 of the container body 10. The part of the upper opening 15 that is not closed by the inner plate 30 becomes the open part 15a.

[0041] In the middle plate 30, a fitting recess 38 is formed in the middle plate bottom 32 to fit with the fitting protrusion 18 of the middle plate mounting step 17 of the container body 11. Thus, as shown in Fig. 2, when the middle plate 30 is held in the upper opening 15 of the container body 10, the fitting protrusion 18 of the middle plate mounting step 17 fits into the fitting recess 38 of the middle plate bottom 32, so that the middle plate bottom 32 is placed on the middle plate mounting step 17. This positions the middle plate 30 at a predetermined position in the upper opening 15 and prevents the middle plate 30 from sliding sideways.

[0042] 1 to 3, the top surface member 50 is a member that covers and seals the upper opening 15 of the container body 10 and the upper opening 35 of the inner plate 30. This top surface member 50 is made of an appropriate member that can cover the upper parts of the container body 10 and the inner plate 30 and seal them together, and for example, a top seal 50A is preferable. Since the top seal 50A is made of a transparent resin film, the inside of the container can be visually confirmed, and it can be easily joined to both the outer peripheral flange 20 of the container body 10 and the inner plate holding flange 40 of the inner plate 30 by known joining means such as heat sealing or adhesive.

[0043] The top surface member 50 has a gripping portion 56 that protrudes like a tongue on one side and serves as an opening portion, and is joined to the entire circumference of the outer circumferential flange 20 of the container body 10 to seal the upper opening 15 of the container body 10. The gripping portion 56 is disposed in correspondence with the handhold portion 16 of the container body 10, and the top surface member 50 can be peeled off from the outer circumferential flange 20 of the container body 10 by gripping and lifting it, thereby opening the container body 10.

[0044] As shown in Fig. 3, the top surface member 50 is joined to the entire circumference of the outer periphery flange 20 of the container body 10 via the body joint 51, and is joined to the inner plate holding flange 40a on the opening side of the inner plate 30 via the inner plate joint 55. The inner plate holding flange 40a on the opening side is a predetermined range of the inner plate holding flange 40 close to the knob portion 56. In the embodiment, the inner plate holding flange 40 of the inner plate 30 is placed on the step portion 21 of the outer periphery flange 20 of the container body 11, so that the outer periphery flange 20 and the inner plate holding flange 40 are configured to be approximately flush with each other. This makes it easier to join the top surface member 50 to both the container body 10 and the inner plate 30 at the same time.

[0045] As shown in Figs. 6 to 9, when the food packaging container 1 of the present invention is opened via the grip portion 56 of the top member 50, the top member 50 is peeled off from the outer peripheral flange 20a on the opening side of the container body 10 while maintaining its connection with the inner plate holding flange 40a on the opening side of the inner plate 30, and the opening side of the inner plate 30 is lifted together with the grip portion 56, so that the side food material contained in the inner plate 30 is introduced into the container body 10. The above-mentioned opening operation will be described in more detail below with reference to Figs. 6 to 9. In the following description, the part of the main body joint 51, which is the joint between the outer peripheral flange 20 of the container body 10 and the top member 50, that is peeled off during the opening operation is referred to as the opening side main body joint 52, and the other part is referred to as the sealing side main body joint 53, and the part of the outer peripheral flange 20 that corresponds to the opening side main body joint 52 is referred to as the opening side outer peripheral flange 22, and the part that corresponds to the sealing side main body joint 53 is referred to as the sealing side outer peripheral flange 23.

[0046] First, the food packaging container 1 shown in Fig. 6 shows the state when the top member 50 is sealed. In the food packaging container 1 when sealed, the inner plate 30 is held by the container body 10, with the inner plate holding flange 40 placed on the opening side outer periphery flange 22 (step 21) of the container body 10, and the fitting recess 38 of the inner plate bottom 32 fitting with the fitting protrusion 18 of the inner plate mounting step 17 of the container body 11. The top member 50 is joined to the outer periphery flange 20 (22, 23) of the container body 10 via the body joint 51 (52, 53), and is joined to the inner plate holding flange 40a on the opening side of the inner plate 30 via the inner plate joint 55, covering and sealing the upper opening 35 of the inner plate body 31 and the upper opening 15 of the container body 11.

[0047] When the food packaging container 1 is sealed, the fitting recess 38 of the inner plate bottom 32 fits into the fitting protrusion 18 of the inner plate placement step 17, and the inner plate 30 is joined to the top member 50 joined to the container body 10 via the inner plate joint 55, preventing the inner plate 30 from sliding sideways. Therefore, the main ingredient contained in the container body 10 and the side ingredient contained in the inner plate 30 can be properly separated during transportation, storage, etc.

[0048] Next, when opening the top surface member 50, as shown in Fig. 7, the knob portion 56 of the top surface member 50 is pulled upward, the opening side body joint portion 52 is released on the opening side (handle portion 16 side, knob portion 56 side) of the outer peripheral flange portion 20 of the container body 10, and peeling of the top surface member 50 begins. At this time, the joint between the inner plate 30 and the top surface member 50 is maintained by the inner plate joint portion 55 even during opening. Therefore, as the knob portion 56 of the top surface member 50 is pulled upward, the inner plate 30 is lifted together with the top surface member 50.

[0049] The inner plate 30 lifted together with the top surface member 50 is tilted so that its opening side faces upward as shown in the figure. That is, the opening side (the knob portion 56 side) of the inner plate holding flange 40 is separated from the opening side outer peripheral flange 22 of the container body 10, and further, the fitting recess 38 of the inner plate bottom 32 and the fitting protrusion 18 of the inner plate mounting step 17 are disengaged, and the inner plate bottom 32 is separated from the inner plate mounting step 17. On the other hand, on the opposite side (the introduction side) of the opening side of the inner plate 30, the joint between the end 22a side of the opening side outer peripheral flange 22 of the container body 10 and the top surface member 50 is maintained, so that the end 43 side of the inner plate holding flange 40 is not separated from the end 22a side of the opening side outer peripheral flange 22 of the container body 10.

[0050] Here, when a guide recess 25 is formed in the outer peripheral flange 20, the end 42 of the inner plate holding flange 40 of the inner plate 30 can be made to fall into the guide recess 25 with the opening side apex 27 as a fulcrum. In other words, it is possible to reduce interference between the end 42 side (inner plate introduction flange 41 side) of the inner plate holding flange 40, which is downward when the inner plate 30 is tilted, and the outer peripheral flange 20 of the container body 10, making it easier to tilt the inner plate 30.

[0051] 8, when the tab 56 of the top member 50 is further pulled up, the top member 50 is further peeled off from the opening-side outer peripheral flange 22, and the opening side of the inner plate 30 is further lifted and tilted accordingly. By tilting the inner plate 30 in this manner, the stored side ingredients are collected toward the introduction-side inner plate side wall 33a of the inner plate main body 31.

[0052] When the guide recess 25 is formed in the opening side outer peripheral flange 22, the inner plate 30 tilts to the inclined guide portion 26 with the opening side apex 27 of the guide recess 25 as a fulcrum, and further enters the guide recess 25. Therefore, the inner plate 30 can be tilted gently. Then, as shown in FIG. 9, the end 42 of the inner plate holding flange 40 is further depressed toward the lower end of the guide recess 25, and the inner plate 30 is tilted, and the inner plate introduction flange 41 of the inner plate 30 falls into the container body 11. At that time, the end 42 of the inner plate holding flange 40 moves toward the lower end of the guide recess 25 along the inclined guide portion 26, so that the inner plate introduction flange 41 of the inner plate 30 can be stably fallen into the container body 11.

[0053] In this way, inner plate 30 is pulled up together with knob portion 56 of upper surface member 50 and tilted so that inner plate introduction flange 41 is at the bottom end, so that the side ingredients collected on the introduction side inner plate side wall portion 33a of inner plate main body portion 31 fall from the side of inner plate introduction flange 41. At that time, since the tilting of inner plate 30 is performed inside upper opening 15 of container body 10, the side ingredients falling from inner plate 30 can be properly introduced into container body 10 directly below.

[0054] In addition, as shown in FIG. 1, it is preferable that the middle plate 30 is configured such that the introduction side middle plate side wall 33a of the middle plate side wall 33 of the middle plate main body 31 is inclined toward the front. The introduction side middle plate side wall 33a is inclined toward the middle plate introduction flange 41, so that the side ingredients can be easily dropped from the middle plate when the side ingredients are introduced into the container main body (see FIG. 9). In addition, it is more preferable to form a guide portion 34 in which a part of the introduction side middle plate side wall 33a is further bulged outward. The guide portion 34 makes it easier to concentrate the side ingredients at a predetermined position (the center side of the introduction side middle plate side wall 33a) when the middle plate 30 is tilted (see FIGS. 8 and 9), so that the side ingredients can be introduced more accurately into the container main body. This is particularly suitable for introducing flowable side ingredients.

[0055] As shown and explained above, in the food packaging container with inner plate of the present invention, the top member is joined to the outer periphery flange of the container body and the inner plate holding flange on the opening side of the inner plate, and when the container is opened via the knob of the top member, the top member is peeled off from the outer periphery flange on the opening side of the container body while maintaining its connection with the inner plate holding flange on the opening side of the inner plate, and the opening side of the inner plate is lifted together with the knob, so that the side ingredients contained in the inner plate are introduced into the container body, so that the side ingredients contained in the inner plate can be introduced into the container body at the upper opening position of the container body without having to separate the inner plate from the container body as in the conventional case. Therefore, the side ingredients can be transferred more accurately than in the conventional case.

[0056] In addition, with this food packaging container, the side dish can be transferred from the inner plate in conjunction with the opening of the top member, which eliminates the need for additional steps after opening compared to conventional methods, allowing food to be eaten in a simpler and more efficient manner.

[0057] Next, food packaging containers according to other embodiments will be described with reference to Figures 10 to 12. In the following embodiments, the same reference numerals denote the same configurations and descriptions thereof will be omitted.

[0058] The food packaging container 1A shown in Fig. 10 is an example having a container body 10A that is generally circular in plan view and does not have a guide recess, and an inner plate 30A in which an inner plate introduction flange 41 is connected to both ends 42, 42 of an inner plate holding flange 40 via a notch 43. During an opening operation, this inner plate 30A is tilted with the end 42 of the inner plate holding flange 40 to which the notch 43 is connected as a fulcrum. At that time, since the inner plate introduction flange 41 is configured to protrude outward (toward the introduction side) from the inner plate holding flange 40 via the notch 43, the inner plate introduction flange 41 enters the container body 10A when the inner plate 30A is tilted, making it easier to introduce the side food in the inner plate 30A into the container body 10A.

[0059] The food packaging container 1B shown in Fig. 11 has a container body 10B having a generally rectangular shape in plan view, and an inner plate 30B having a generally rectangular shape in plan view held on one side of the container body 10B, and is an example in which a knob portion 56 of the upper surface member 50 is arranged on one side of the container body 10B as an opening portion. In the food packaging container 1B, a step portion 21 is formed in a generally U-shape over the opening side edge of the container body 10B and parts of both sides connected thereto. In addition, in the food packaging container 1B, an opening side body joint portion 52 is formed on the opening side outer peripheral flange portion 22 on the side on which the inner plate 30B is placed, and a sealing side body joint portion 53 is formed on the sealing side outer peripheral flange portion 23 on the opposite side, and an inner plate joint portion 55 is formed on the inner plate holding flange portion 40 adjacent to the knob portion 56. In this food packaging container 1B, too, by performing the opening operation via the knob portion 56, the inner plate 30B can be tilted together with the knob portion 56 from the side that is the opening side, and the side ingredient in the inner plate 30B can be introduced into the container body 10B.

[0060] The food packaging container 1C shown in FIG. 12 has a container body 10C having a generally rectangular shape in plan view, and an inner plate 30C having a generally triangular shape in plan view that is held at one corner of the container body 10C, and is an example in which a knob portion 56 of the upper surface member 50 is arranged at the one corner of the container body 10C as an opening portion. In the food packaging container 1C, a step portion 21 is formed in a generally L-shape on each side including the one corner of the opening side of the container body 10C. In addition, in the food packaging container 1C, an opening side body joint portion 52 is formed on the opening side outer peripheral flange portion 22 on the one corner side on which the inner plate 30C is placed, and a sealing side body joint portion 53 is formed on the sealing side outer peripheral flange portion 23 on the opposite side, and an inner plate joint portion 55 is formed on the corner side of the inner plate holding flange portion 40 adjacent to the knob portion 56. In this food packaging container 1C, the inner plate 30C can also be tilted together with the grip 56 from one corner side, which is the opening side, to introduce the side ingredients in the inner plate 30C into the container body 10C.

[0061] The food packaging container with inner tray of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate within the scope of the invention. For example, although not shown, it is possible to appropriately form a guide recess in the food packaging containers 1A to 1C. In addition, the position of the tab, which serves as the opening portion, can be arbitrarily set regardless of the shape of the container body. [Industrial Applicability]

[0062] As described above, the food packaging container with inner tray of the present invention allows the transfer of side ingredients by lifting and tilting the inner tray from the opening side in conjunction with the opening operation of the top member, making it possible to transfer side ingredients more accurately than before and to eat food in a simpler and more efficient manner. Therefore, it is a promising alternative to conventional food packaging containers with inner trays. [Explanation of symbols]

[0063] 1,1A~1C Food packaging container with inner tray 10, 10A~10C Container body 11 Container body 12 Bottom 13 Side wall 15 Top opening 15a Open area 16 Handhold part 17 Inner tray placement section 18 Fitting protrusion 20 Outer flange 20a Outer flange on the opening side 21 Step 22 Opening side outer flange 22a End of outer periphery flange on opening side 23 Sealing side outer periphery flange 25 Guide recess 26 Incline guide section 27 Opening side apex of guide recess 30,30A~30C medium plate 31 Inner plate body 32 Bottom of medium plate 33 Side wall of inner plate 33a Introductory side inner plate side wall 34 Guidance part 35 Top opening 38 Fitting recess 40 Inner plate holding flange 40a Inner plate holding flange on opening side 41 Inner plate introduction flange 42 End of inner plate retaining flange 43 Notch 50 Upper surface member 50A Top Seal 51 Main body joint 52 Opening side body joint 53 Sealing side main body joint 55 Middle plate joint 56 Knob

Claims

1. A container body containing a main ingredient and having an outer peripheral flange at an upper opening; A middle plate that contains a side dish and has a middle plate holding flange that is held by the outer peripheral flange of the container body; A food packaging container having a top surface member that covers the upper opening of the container body and the inner plate, A step portion is formed on the inner peripheral side of the outer peripheral flange of the container body, and the inner plate holding flange of the inner plate is placed on the step portion, The top surface member has a tab portion on one side that serves as an opening portion, and is joined to the outer peripheral flange portion of the container body and the inner plate holding flange portion on the opening side of the inner plate, When opening the container through the grip part of the upper surface member, the upper surface member is peeled off from the outer peripheral flange part on the opening side of the container body while maintaining the connection with the inner plate holding flange part on the opening side of the inner plate, and the opening side of the inner plate is lifted together with the grip part, so that the side ingredients contained in the inner plate are introduced into the container body. A food packaging container with an inner tray.

2. 2. A food packaging container with an inner plate as described in claim 1, wherein the inner plate has an inner plate introduction flange connected between both ends of the inner plate holding flange and positioned above the upper opening of the container body, and when the container is opened via the knob portion of the top surface member, side ingredients contained in the inner plate are introduced into the container body from the inner plate introduction flange side.

3. 3. The food packaging container with inner tray according to claim 2, wherein the inner tray introduction flange of the inner tray is connected to both ends of the inner tray holding flange via a notch.

4. 4. The food packaging container with inner tray according to claim 2, wherein the inner tray side wall portion on the introduction side of the inner tray is configured to be inclined toward the inner tray introduction flange portion.

5. 5. The food packaging container with inner tray according to claim 4, wherein a guide portion is formed by partially bulging outward on the side wall of the inner tray on the introduction side.

6. A food packaging container with an inner plate as described in any one of claims 2 to 5, wherein a guide recess that is recessed toward the inside of the container is formed in the outer peripheral flange of the container body, and when the container is opened via the knob portion of the top surface member, both ends of the inner plate holding flange of the inner plate are inserted into the guide recess of the container body to tilt the inner plate.

7. 7. The food packaging container with inner plate according to claim 6, wherein an inclined guide portion inclined toward the opening side is formed at an upper portion of the opening side of the guide recess.

8. A food packaging container with an inner plate as described in any one of claims 1 to 7, which has a middle plate mounting step protruding toward the inside of the container on the side wall of the container body, an engaging protrusion formed on the middle plate mounting step and an engaging recess formed on the middle plate bottom of the middle plate, and the engaging protrusion of the middle plate mounting step and the engaging recess of the middle plate bottom are engaged with each other so that the middle plate bottom is placed on the middle plate mounting step.

9. 9. The food packaging container with a middle tray according to claim 1, wherein the upper surface member is a top seal.

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