JP5372533B2 - Reheating method - Google Patents

Description

  The present invention relates to a reheating method capable of appropriately reheating foodstuffs with hot air flowing in the horizontal direction.

  2. Description of the Related Art Conventionally, for example, a container part for containing foodstuffs, an inner lid, and an outer lid are provided, and foodstuffs are contained between the container part and the inner lid, and the foodstuff storage space between the container part and the inner lid is an outer lid. There is known a food heating container which is cut off from the outer heating space (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2005-1444023

  However, when the above-mentioned conventional food heating container is used and hot air flowing in the horizontal direction is applied to the side surface of the food heating container to reheat food such as rice, the hot air is concentrated on the side surface. Therefore, the food near the side surface receives excessive heat compared to the food near the bottom surface, and for example, the food may become crunchy before the center of the food is warmed.

  This invention is made | formed in view of such a point, and it aims at providing the reheating method which can reheat a foodstuff appropriately with the hot air which flows into a horizontal direction.

The reheating method according to claim 1 is a reheating method for reheating food contained in a reheating container having an air layer in a side surface portion, wherein the food in the reheating container is cooled and stored. A reheating method in which hot air flowing in the horizontal direction is applied to a side surface of the reheating container to reheat the food that has been stored in a cold state , wherein the reheating container has a top opening. A main body and a lid that opens and closes the upper surface opening of the container main body, the container main body is detachably fitted into the outer container, and the food is An inner container having an open top surface to be accommodated, and a space part that is located between the inner side surface of the outer container and the outer side surface of the inner container and forms the air layer, A bottom plate with a hole for it and projecting upward at the outer peripheral edge of this bottom plate A side plate portion and a leg portion protruding downward from the bottom plate portion and having a hot air vent opening, and the inner container has a bottom plate portion facing the hot air vent hole portion, A side plate projecting upward at the outer peripheral end of the bottom plate, and projecting outward from the upper end of the side plate, and positioned on the upper end of the side plate of the outer container. When reheating the food by applying the hot air flowing in the horizontal direction to the side part of the reheating container, the reed part of the inner container and the side plate part of the outer container are provided. The upper end portions are brought into contact with each other to prevent the air in the air layer from flowing out .

The reheating method according to claim 2 is a reheating method for reheating food contained in a reheating container having an air layer in a side surface portion, and the reheating method is performed by circulating and supplying cold air until mealtime. A reheating method in which the food stored in the container is cooled and stored, and when the meal comes, the hot air flowing in the horizontal direction by hot air circulation supply is applied to the side of the reheating container to reheat the stored food. The reheating container comprises a container main body having an upper surface opening, and a lid for opening and closing the upper surface opening of the container main body, and the container main body is an outer container having an upper surface opening; The air container is detachably fitted and disposed in the outer container, and is located between the inner surface of the upper surface opening in which the food is accommodated, and the inner surface of the outer container and the outer surface of the inner container. The outer container includes a hot air passage. A bottom plate portion in which a hole is formed, a side plate portion projecting upward from an outer peripheral end portion of the bottom plate portion, and a bottom plate portion projecting downward and having a hot-air opening. The inner container includes a bottom plate portion facing the hot air passage hole, a side plate portion projecting upward from an outer peripheral end portion of the bottom plate portion, and an upper end of the side plate portion. Projecting toward the outside, and having a flange portion located on the upper end portion of the side plate portion of the outer container, the hot air flowing in the horizontal direction is applied to the side surface portion of the reheating container. When reheating the food material, the inner container has a slight gap communicating with the air layer between the lower surface of the bottom plate portion of the inner container and the upper surface of the bottom plate portion of the outer container. The flange portion and the upper end portion of the side plate portion of the outer container are brought into contact with each other to prevent the air in the air layer from flowing out. It is those that.

The reheating method according to claim 3 is the reheating method according to claim 1 or 2, wherein an annular convex portion that is an air layer maintaining portion is provided between the upper outer surface of the side plate portion of the inner container and the lower surface of the flange portion. Is provided.

The reheating method according to claim 4 is the reheating method according to any one of claims 1 to 3, wherein the lid body is a lid plate portion placed on the flange portion of the inner container, and the lid plate portion. It has a cylindrical portion that protrudes downward from the outer peripheral end portion and faces the outer surface of the upper end portion of the side plate portion of the outer container.

The reheating method according to claim 5 is the reheating method according to any one of claims 1 to 4, wherein the bottom plate portion of the outer container is formed with a polygonal hole for hot air flow, and the bottom plate of the inner container. The part has a polygonal fitting part that fits with an inner peripheral end facing the hot air passage hole of the bottom plate part of the outer container and restricts the rotation of the inner container with respect to the outer container. It is provided.

  According to the first aspect of the present invention, it is possible to prevent the food material near the side surface portion of the reheating container from receiving excessive heat, and the food material can be appropriately reheated by the hot air flowing in the horizontal direction.

  According to the invention which concerns on Claim 2, it can prevent that the foodstuff of the side part vicinity of the container for reheating receives excessive heat, and can heat a foodstuff appropriately with the hot air which flows into the horizontal direction based on the circulation supply of a hot air.

According to the invention of 請 Motomeko 5, can be prevented when eating food reheated by the hot air flowing in the horizontal direction, the inner container will be rotated relative to the outer container.

It is sectional drawing of the container for reheating used for the reheating method which concerns on one embodiment of this invention. It is an upper side perspective view of the same reheating container. It is a lower side perspective view of the same reheating container. It is an upper side exploded perspective view of the same reheating container. It is a lower side exploded perspective view of the same reheating container. It is sectional drawing of the outer container of the container for reheating same as the above. It is sectional drawing of the inner container of the container for reheating same as the above. It is a perspective view which shows the state which set the container for reheating same as the above to the tray with another container. It is a cross-sectional view which shows the state which connected the heating-cooling apparatus and the allocation vehicle. It is a side view which shows the state which connected the heating-cooling apparatus and the allocation vehicle. It is a lower side perspective view of the container for other reheating used for the reheating method which concerns on one embodiment of this invention. It is a lower side perspective view of the inner container of the same reheating container. It is a lower side perspective view of the outer container of the same reheating container.

  An embodiment of the reheating method of the present invention will be described with reference to the drawings.

  The reheating method according to the present embodiment uses cooked rice A that is a cooked food that has been cooled and stored in a chilled temperature zone (chilled storage), for example, using the reheating container 1 shown in FIGS. Is reheated to the optimum temperature.

  The reheating container 1 includes a double-bottomed container body 2 having a bottomed substantially cylindrical shape having a circular upper surface opening 4 and a lid that is detachable from the container body 2 and opens and closes the upper surface opening 4. And a body 3.

  The container body 2 includes an outer container 6 having an upper surface opening, an inner container 7 having an upper surface opening in which the rice A is accommodated and detachably fitted in the outer container 6, and an inner surface of the outer container 6. A space portion 9 that is located between the entirety and the entire outer surface of the inner container 7 and that forms an air layer 8 is provided. And since the container body 2 has an air layer 8 formed between the entire inner surface of the outer container 6 and the entire outer surface of the inner container 7, hot air flowing in the horizontal direction is applied to the side surface portion of the outer container 6. Even if it hits in a concentrated manner and receives heat more intensely than other parts, the heat transfer to the side part of the inner container 7 is reduced.

  The outer container 6 has a bottomed substantially cylindrical shape having a circular upper surface opening 11. The outer container 6 has a circular annular bottom plate portion 13 in which a circular hot air hole portion 12 is formed through the upper and lower surfaces at the center.

  The bottom plate portion 13 is not formed in a horizontal plate shape along a horizontal plane, but is formed in an inclined plate shape that is inclined so as to gradually go upward from the inner peripheral end side to the outer peripheral end side. At the outer peripheral end of the bottom plate portion 13, a curved side plate portion 14 that protrudes upward and has a frustoconical shape that expands upward and bulges outward. The lower end portion side of the side plate portion 14 is curved with a smaller radius of curvature than the other portions, and the lower end portion of the side plate portion 14 and the outer peripheral end portion of the bottom plate portion 13 are smoothly continuous.

  Further, at the inner peripheral end of the bottom plate portion 13 facing the hot air vent hole 12, a leg portion 17 that is an intermittent thread bottom portion having a hot air vent opening 16 is provided to project downward. Yes. The leg portion 17 protrudes downward from a plurality of locations on the inner peripheral end of the bottom plate portion 13, and includes a plurality of, for example, four leg plates 18 arranged at intervals (hot air vent openings) in the circumferential direction of the bottom plate portion 13. Have. Each leg plate 18 is formed in a curved plate shape along the circumferential direction of the bottom plate portion 13, and a substantially semi-elliptical opening 16 for hot air is formed between the leg plates 18 adjacent in the circumferential direction. Since the leg portion 17 protrudes downward from the lower surface of the bottom plate portion 13, it is easy to pass hot air below the outer container 6, and a hot air passage opening 16 is formed between the adjacent leg plates 18. In addition, since the hot air passage hole 12 is formed through the bottom plate portion 13, hot air can be easily applied to the bottom surface of the inner container 7 in the outer container 6 from below the outer container 6.

  Further, as shown in FIG. 6 and the like, a plurality of, for example, four convex one-side engaging portions for restricting rotation are provided at the inner peripheral end portion of the bottom plate portion 13 facing the hot air vent hole portion 12. A certain projecting portion 19 is provided so as to protrude horizontally in the radial direction of the circular bottom plate portion 13 toward the inner side, that is, toward the center of the hot air vent hole portion 12. The plurality of convex portions 19 are located at an interval of approximately 90 degrees in the circumferential direction of the bottom plate portion 13 and project inward from the inner peripheral end surface of the bottom plate portion 13, that is, for example, hot air is passed from the longitudinal center portion of the leg plate 18 It protrudes horizontally into the hole 12 for use.

  The inner container 7 has a substantially bottomed cylindrical shape having a circular upper surface opening 21 constituting the upper surface opening 4. When the inner container 7 is fitted in the outer container 6 and the periphery is covered with the outer container 6, the inner container 7 faces and opposes the hot air vent hole 12 of the bottom plate portion 13 of the outer container 6. A circular plate-like bottom plate portion 23 that closes the hot-air ventilation hole 12 is provided.

  At the outer peripheral end portion of the bottom plate portion 23, a curved side plate portion 24 having a frustoconical shape having a diameter that is enlarged upward and having a substantially similar shape to the side plate portion 14 of the outer container 6 and bulging outward. Projecting upward. The lower end portion side of the side plate portion 24 is curved with a smaller radius of curvature than the other portions, and the lower end portion of the side plate portion 24 and the outer peripheral end portion of the bottom plate portion 23 are smoothly continuous.

  In addition, at a plurality of locations (for example, 4 locations) on the outer peripheral surface of the side plate portion 24, there are air escape recesses 20 that prevent the inner containers 7 from coming into close contact when the inner containers 7 are stacked together during storage or the like. Is formed. Further, the side plate portion 14 of the outer container 6 and the side plate portion 24 of the inner vessel 7 constitute a side surface portion 10 of the reheating container 1, and an air layer 8 is formed in the side surface portion 10.

  In addition, a circular annular flange 25 projects outwardly from the upper end of the side plate 24, and this flange 25 is placed on and supported by the upper surface of the upper end of the side plate 14 of the outer container 6. Is done. Further, as shown in FIG. 1, when the collar portion 25 of the inner container 7 is placed on the upper end portion of the side plate portion 14 of the outer container 6, that is, the inner container 7 can be detached from the inner side of the outer container 6. In order to ensure contact between the flange portion 25 of the inner container 7 and the upper end portion of the side plate portion 14 of the outer container 6, the lower surface of the bottom plate portion 23 of the inner container 7 and the outer container 6 are secured. Between the upper surface of the bottom plate portion 13, there is a slight gap 26 communicating with the lower end of the air layer 8. In addition, when the flange 25 is placed on the upper end portion of the side plate portion 14 of the outer container 6, there is no gap 26, and the lower surface of the bottom plate portion 23 of the inner container 7 and the upper surface of the bottom plate portion 13 of the outer container 6 More preferably, the surface contact with each other.

  And since the flange part 25 of the inner container 7 and the upper end part of the side plate part 14 of the outer container 6 come into contact with each other to prevent the air in the air layer 8 from flowing out, the air in the air layer 8 flows in the horizontal direction. The hot air flowing in the horizontal direction where the side plate portion 14 of the outer container 6 hits in a concentrated manner does not become high temperature by circulating with the air in the tray storage chamber 73 of the cart portion 66 to be described later heated by the hot air flowing through Therefore, the side plate portion 24 of the inner container 7 is prevented from being heated faster than other portions.

  Further, between the upper end outer surface of the side plate portion 24 and the lower surface of the flange portion 25, the outer surface of the side plate portion 24 is formed in an annular shape having a radial thickness dimension substantially the same as the thickness dimension of the air layer 8. A circular annular convex portion 27 is provided which is an air layer maintaining portion which is located between the inner surface of the container body 2 and maintains the thickness dimension (gap) of the air layer 8 uniformly over the entire circumference of the container body 2. It has been.

  Then, due to the contact between the outer peripheral surface of the annular convex portion 27 and the inner surface of the upper end portion of the side plate portion 14 of the outer container 6, the air layer 8 having a certain thickness is formed on the inner surface of the side plate portion 14 of the outer container 6 and the inner container 7. Since the outer peripheral surface of the container body 2 is uniformly formed over the entire circumference of the container body 2, the inner container is no matter which direction of the side plate part 14 of the outer container 6 is applied with hot air flowing in the horizontal direction. Heat is transferred to the side plate portion 24 of 7 in the same manner throughout.

  Further, on the lower surface side of the bottom plate portion 23, as shown in FIG. 7 and the like, the convex portion 19 of the outer container 6 is detachably engaged, for example, fitted, and the inner container 7 is relative to the outer container 6. A plurality of, for example, four concave concave portions 29 that restrict the rotation of the concave portion 29 are provided. That is, for example, a substantially circular annular bulging portion 30 bulging downward from the lower surface is provided on the lower surface of the bottom plate portion 23, and four concave portions 29 are provided around the bulging portion 30 corresponding to the convex portions 19. It is formed at intervals of approximately 90 degrees in the direction. Each concave portion 29 has a concave groove shape along the radial direction of the circular plate-like bottom plate portion 23, and is formed in a shape that can be removably fitted to the corresponding convex portion 19.

  Then, when the inner container 7 is put in the outer container 6 and the four convex portions 19 of the outer container 6 and the four concave portions 29 of the inner container 7 are fitted to each other, the outer container of the inner container 7 is fitted by this fitting. The relative rotation with respect to 6 is restricted. That is, in a state in which the convex portion 19 and the concave portion 29 are fitted to each other, the inner container 7 is restricted from rotating with respect to the outer container 6 in the horizontal direction around the vertical axis in the outer container 6. The

  On the other hand, the lid 3 is placed on the upper end of the inner container 7 and closes the upper surface opening 21 of the inner container 7, that is, the upper surface opening 4 of the container body 2. The lid body 3 has a substantially circular plate-like lid plate portion 31 whose outer peripheral end is placed on the flange portion 25 of the inner container 7 when the upper surface opening 4 is closed.

  The outer diameter of the cover plate 31 is larger than the outer diameter of the flange 25 of the inner container 7, and the outer peripheral end of the cover plate 31 is in close proximity to the outer surface of the upper end of the side plate 14 of the outer container 6. A substantially cylindrical tubular portion 32 that covers the outer surface of the upper end portion of the side plate portion 14 is provided so as to protrude downward. Further, in the vicinity of the outer peripheral end portion of the lid plate portion 31, there is a circular annular convex portion 33 that is close to and opposed to the inner surface of the upper end portion of the side plate portion 24 of the inner container 7 and covers the inner surface of the upper end portion of the side plate portion 24. It protrudes downward. As shown in FIG. 1, a portion of the lower surface of the cover plate portion 31 located between the cylindrical portion 32 and the annular convex portion 33 becomes a curved mounting surface 34 and the flange portion 25. It is placed and supported on a placement surface 35, which is the upper surface of the. Further, a bulge-like handle portion 36 is formed at the center of the lid plate portion 31 upward.

  The outer container (container cover) 6, the inner container (storage container) 7, and the lid 3, which are the three components constituting the reheating container 1, are integrally formed of, for example, synthetic resin or metal. ing.

  And as shown in FIG. 8, the container for reheating (container for cooked rice) 1 in which the rice A which is the staple food for 1 meal was accommodated is warmed for 1 meal of main dishes (for example, fish dishes, meat dishes, boiled dishes, etc.). With a main dish container 41, 42 each containing food to be eaten) and a cold vegetable container 43 containing one serving of cold vegetables (for example, salad, dessert, etc.) It is set on a plate-like tray 44. At this time, the reheating container 1 and the main vegetable containers 41 and 42 containing the food to be heated and eaten are placed on one side in the longitudinal direction of the tray 44, and the cold vegetable container containing the food to be cooled and eaten is placed. 43 is placed on the other side of the tray 44 in the longitudinal direction.

  9 and 10 show a heating / cooling device 51 for heating and cooling foods such as cooked rice A, and a distribution car 52 for carrying a plurality of trays 44 in which containers 1, 41, 42, 43 are set. The state where is connected is shown.

  The heating / cooling device 51 includes a cold air / hot air supply unit 53 on one side (left side in FIG. 9) and a cold air supply unit 54 on the other side (right side in FIG. 9). The heating / cooling device 51 includes an outside air inlet, a control unit, a touch panel operation unit, and the like (not shown).

  The cold air / hot air supply unit 53 includes a discharge port 56 that discharges cold air during cooling storage and discharges hot air during reheating, an intake port 57 that sucks cold air during cooling storage and sucks hot air during reheating, a cooling heat exchange unit 58, A resistance heating type heater unit 59 and a fan unit 60 are provided.

  The cold air supply unit 54 includes a discharge port 61 for discharging cold air during cooling storage and reheating, a suction port 62 for sucking cold air during cooling storage and reheating, a heat exchange unit 63 for cooling, and a fan unit 64. doing.

  On the other hand, the distribution vehicle 52 can be connected to and disconnected from the heating / cooling device 51, and includes a cart portion 66 and a storage chamber portion 67 that stores the cart portion 66 in a removable manner.

  The cart unit 66 includes a cart main body 72 having a caster 71, and a tray storage chamber 73 is formed in the cart main body 72. In the tray storage chamber 73, a detachable mounting table 74 on which the tray 44 is mounted is arranged in a plurality of stages in the vertical direction. At the center in the width direction of the tray storage chamber 73, a partition plate 76 is provided that partitions the tray storage chamber 73 into one side storage chamber 73a and the other side storage chamber 73b, leaving the tray insertion portion 75.

  The side plate 72a on one side of the cart main body 72 has a plurality of introduction holes for introducing cold air / hot air from the one side communication passage 77 communicating with the discharge port 56 of the cold air / hot air supply unit 53 into the one side storage chamber 73a (see FIG. (Not shown) is formed. The side plate 72b on the other side of the cart body 72 has a plurality of introduction holes (not shown) for introducing the cold air from the other side communication passage 78 communicating with the discharge port 61 of the cold air supply unit 54 into the other side storage chamber 73b. Is formed.

  The storage chamber 67 includes a travelable main body 82 having casters 81, and a cart section storage chamber 83 is formed in the main body 82. The storage chamber 67 includes a door 85 that opens and closes the front opening 84 of the cart storage chamber 83, and a door 87 that opens and closes the rear opening 86 of the cart storage chamber 83.

  A one-side communication path 77 is configured in a space between one side plate 82a of the main body 82 and one side plate 72a of the cart main body 72, and the other side plate 82b of the main body 82 and the cart main body 72 are connected to each other. The other side communication path 78 is configured in a space between the other side plate 72b.

  And the case where reheating of a foodstuff is performed using such a heating-cooling apparatus 51 and the distribution vehicle 52 is demonstrated.

  Until the meal, the ingredients (rice cooked rice A, main dish and cold vegetables) are chilled and stored in the chilled temperature range by circulating supply of cold air whose flow is shown in FIG.

  That is, the cooked rice A in the reheating container 1 and the main dish in the main dish containers 41 and 42 stored in the one-side storage chamber 73a of the cart portion 66 of the distribution vehicle 52 are cold air and hot air in the heating and cooling device 51. The cold vegetables in the cold vegetable container 43 that are chilled and stored by circulating supply of cold air based on the operation of the supply unit 53 and stored in the other side storage chamber 73b of the cart unit 66 of the distribution vehicle 52 are stored in the heating and cooling device 51. The chilled storage is performed by circulating and supplying cold air based on the operation of the cold air supply unit 54.

  After that, when it comes to a preset meal (drinking), the cold air / hot air supply unit 53 automatically switches the cold air to hot air, and the food to warm and eat by circulating supply of hot air, the flow of which is shown in FIG. Only the cooked rice A and the main dish, that is, the cooked rice A in the reheating container 1 stored in the one-side storage chamber 73a and the main dish in the main dish containers 41 and 42 are reheated to the optimum temperature. It should be noted that the food (cold vegetables) to be chilled, that is, the cold vegetables in the cold vegetable container 43 stored in the other storage chamber 73b, is continuously maintained in the chilled temperature range by circulating and supplying cold air.

  Here, as shown in FIG. 8, the cooked rice A in the reheating container 1 and the main dish in the main dish containers 41 and 42 on the tray 44 stored in the one-side storage chamber 73a are circulated and supplied with hot air. Thus, the hot air that is introduced from the introduction hole into the one-side storage chamber 73a and flows in the horizontal direction is applied to the side surface portion 10 of the reheating container 1 to be reheated to the optimum temperature. That is, the cooked rice A in the reheating container 1 and the main dish in the main dish containers 41 and 42 are surrounded by hot air in the one-side storage chamber 73a and are reheated by hot air flowing in the horizontal direction to obtain the optimum temperature. To warm up.

  After the reheating is completed, the operator releases the connection between the heating / cooling device 51 and the distribution vehicle 52, carries the distribution vehicle 52 to a predetermined position, and then transfers each tray 44 to the tray storage chamber of the cart portion 66 of the distribution vehicle 52. Take out from 73 in order and provide each person as a meal. And the person who eats, in order to eat the cooked rice A in the container 1 for reheating, removes the cover body 3 from the upper end part of the container main body 2, and the container main body 2, ie, the outer container in which the inner container 7 was inserted inside 6 is held and the food A which is the rice in the inner container 7 is eaten.

  According to such a reheating method, the reheating container 1 has the air layer 8 in the side surface portion 10, that is, the inner side surface of the side plate portion 14 of the outer container 6 and the side plate portion 24 of the inner container 7. Since the air layer 8 is formed between the outer surface and the outer surface, the hot air flowing in the horizontal direction is concentrated on the outer surface of the side plate portion 14 of the outer container 6 (the outer surface of the side surface portion 10). In the state where the cooked rice A near the center in the inner container 7 is sufficiently heated, the cooked rice near the inner side surface of the side plate portion 24 of the inner container 7 is too hot and becomes crunchy. The cooked rice A can be appropriately reheated by the hot air flowing in the horizontal direction.

  Further, since the hot air flowing in the horizontal direction is supplied to the hot air passage hole 12 side through the hot air passage opening 16 of the leg portion 17, the hot air flowing in the horizontal direction contacts the bottom plate portion 23 of the inner container 7. The cooked rice A can be heated moderately from the lower part of the inner container 7, and the cooked rice A can be reheated more appropriately by the hot air flowing in the horizontal direction.

  Further, since the flange portion 25 of the inner container 7 is placed on the upper end portion of the side plate portion 14 of the outer container 6, the air layer 8 is formed between the upper end portion of the inner container 7 and the upper end portion of the outer container 6. The air can be prevented from flowing out of the container body 2, and the cooked rice A can be reheated more appropriately by reducing the influence of heat received from the hot air flowing in the horizontal direction at the side surface portion 10 of the reheating container 1.

  Further, since the inner container 7 has an annular convex portion 27 provided between the side plate portion 24 and the flange portion 25 and having a thickness dimension substantially the same as the thickness dimension of the air layer 8, the air layer 8 The thickness dimension of the cooked rice A is uniform over the entire circumference of the container body 2, and the cooked rice A can be appropriately reheated uniformly by the hot air flowing in the horizontal direction from any direction on the side surface of the reheating container 1. This can prevent the air in the air layer 8 from flowing out of the container body 2 together with the flange 25.

  Further, since the lid 3 has an annular convex portion 33 protruding downward from the lid plate portion 31 and facing the inner surface of the upper end portion of the side plate portion 24 of the inner container 7, steam generated from the cooked rice A during reheating is used. Is difficult to escape from between the lid 3 and the upper end of the inner container 7, and the cooked rice A can be effectively reheated by the hot air flowing in the horizontal direction.

  On the other hand, since the plurality of convex portions 19 of the outer container 6 and the plurality of concave portions 29 of the inner container 7 are fitted and the rotation of the inner container 7 relative to the outer container 6 is restricted, the reheated inner container 7 It is possible to prevent the inner container 7 from rotating with respect to the outer container 6 when eating the inner cooked rice A. That is, for example, the inner container 7 does not rotate in the outer container 6 held by hand while eating the cooked rice A in the inner container 7.

  Note that the leg portion 17 of the reheating container 1 is not limited to the one having a plurality of leg plates 18, and has, for example, a substantially cylindrical cylindrical leg, and the hot air vent opening is provided inside and outside the cylindrical leg. It may be formed by penetrating the peripheral surface.

  Further, the lid 3 is not limited to the one mounted on the upper end portion of the container main body 2, and may be one fitted to the upper end portion of the container main body 2. The thing etc. which are attached or detached by rotation may be used.

  Furthermore, the air layer maintaining part that uniformly maintains the air layer 8 over the entire circumference of the container body 2 is, for example, an annular shape protruding on the outer side surface (lower end part outer surface) in the vertical direction of the side plate part 24 of the inner container 7. It may be a convex portion or an annular convex portion protruding from the inner surface (upper side intermediate portion outer surface, lower end inner surface) of the side plate portion 14 of the outer container 6, and is composed of a plurality of convex portions instead of an annular shape. Etc.

Et al is, the configuration in which the outer container 6 has a convex portion 19 and the inner container 7 has a recess 29 is not limited, for example, a concave outer container 6 is one side engaging portion of the concave and contents The structure etc. which the container 7 has a convex part which is a convex one side engaging part may be sufficient.

  Further, the reheating method using the heating / cooling device 51 and the distribution vehicle 52 is not limited. For example, the tray 44 is stored in the tray storage chamber formed in the heating / cooling device and the food such as cooked rice is reheated. Good.

  On the other hand, the reheating container 1 is not limited to the configuration in which the rotation of the inner container 7 with respect to the outer container 6 is restricted by the fitting of the convex portion 19 of the outer container 6 and the concave portion 29 of the inner container 7. For example, the shape shown in FIGS. 11 to 13 may be used.

  That is, in the reheating container 1 shown in FIGS. 11 to 13, a hot air ventilation hole 12 having a polygonal shape, for example, a regular octagonal shape, is formed through the upper and lower surfaces at the center of the bottom plate portion 13 of the outer container 6. An inner peripheral end portion of the bottom plate portion 13 facing the hot air passage hole portion 12 is a fitting receiving portion 91 that is one side engaging portion for restricting rotation.

  Further, in this reheating container 1, it is inserted into the hot air vent hole 12 on the lower surface of the bottom plate portion 23 of the inner container 7 so as to be detachably fitted to the fitting receiving part 91, and the outer container 7. A fitting portion 92, which is the other-side engaging portion that restricts relative rotation with respect to the container 6, projects downward. The fitting portion 92 has a shape that fits detachably with the fitting receiving portion 91, that is, a polygonal shape corresponding to the hot air passage hole 12, for example, a regular octagonal shape, and is formed in an annular shape.

  Then, the inner container 7 is placed in the outer container 6 and the fitting portion 92 is inserted into the hot air vent hole 12 so that the fitting receiving portion 91 of the outer container 6 and the fitting portion 92 of the inner container 7 are connected to each other. When fitted, the relative rotation of the inner container 7 relative to the outer container 6 is restricted by this fitting. That is, in a state in which the fitting receiving portion 91 and the fitting portion 92 are fitted to each other, the inner container 7 rotates with respect to the outer container 6 in the horizontal direction around the vertical axis in the outer container 6. Therefore, for example, the inner container 7 does not rotate in the outer container 6 held by hand while eating the rice A in the inner container 7.

  The polygonal shape of the hot air hole 12 and the fitting portion 92 may be, for example, a regular hexagonal shape or a regular decagonal shape. This is preferable from the viewpoint of facilitating the fitting between the portion 91 and the fitting portion 92 of the inner container 7.

DESCRIPTION OF SYMBOLS 1 Reheating container 2 Container main body 3 Cover body 4 Upper surface opening part 6 Outer container 7 Inner container 8 Air layer 9 Space part
10 Side
12 Hot air vent
13 Bottom plate of outer container
14 Side plate of outer container
16 Hot air opening
17 legs
23 Bottom plate of inner container
24 Side plate of inner container
25 Buttocks
26 gap
27 annular projection
31 Lid plate
32 tubular parts
92 Fitting part A Cooked rice

Claims (5)

A reheating method for reheating food contained in a reheating container having an air layer in a side part,
Refrigerated storage of the ingredients in the reheating vessel,
A reheating method for reheating food that has been stored in a cold state by applying hot air flowing in a horizontal direction to a side surface of the reheating container ,
The reheating container is:
A container body having an upper surface opening;
A lid for opening and closing the upper surface opening of the container body,
The container body is
An outer container having an open top surface;
In the outer container is detachably fitted and disposed, and an inner container having an upper surface opening in which food is stored,
A space portion that is located between the inner surface of the outer container and the outer surface of the inner container, and that forms the air layer;
The outer container is
A bottom plate part in which a hole for hot air is formed;
A side plate projecting upward at the outer peripheral end of the bottom plate,
A leg portion protruding downward from the bottom plate portion and having a hot air vent opening,
The inner container is
A bottom plate portion facing the hot air vent hole;
A side plate projecting upward at the outer peripheral end of the bottom plate,
Projecting outward at the upper end of the side plate, and having a flange located on the upper end of the side plate of the outer container,
When reheating the food by applying the hot air flowing in the horizontal direction to the side surface of the reheating container, the flange of the inner container and the upper end of the side plate of the outer container are brought into contact with each other The reheating method is characterized in that the air in the air layer is prevented from flowing out . A reheating method for reheating food contained in a reheating container having an air layer in a side part,
The food in the reheating container is cooled and stored by circulating cold air until meal time,
It is a reheating method for reheating food that has been stored in a cold state by applying hot air flowing in the horizontal direction by circulating supply of hot air to the side portion of the reheating container at the time of meal ,
The reheating container is:
A container body having an upper surface opening;
A lid for opening and closing the upper surface opening of the container body,
The container body is
An outer container having an open top surface;
In the outer container is detachably fitted and disposed, and an inner container having an upper surface opening in which food is stored,
A space portion that is located between the inner surface of the outer container and the outer surface of the inner container, and that forms the air layer;
The outer container is
A bottom plate part in which a hole for hot air is formed;
A side plate projecting upward at the outer peripheral end of the bottom plate,
A leg portion protruding downward from the bottom plate portion and having a hot air vent opening,
The inner container is
A bottom plate portion facing the hot air vent hole;
A side plate projecting upward at the outer peripheral end of the bottom plate,
Projecting outward at the upper end of the side plate, and having a flange located on the upper end of the side plate of the outer container,
When reheating the food by applying the hot air flowing in the horizontal direction to the side surface portion of the reheating container, between the lower surface of the bottom plate portion of the inner container and the upper surface of the bottom plate portion of the outer container. The air in the air layer flows out by bringing the flange portion of the inner container and the upper end portion of the side plate portion of the outer container into contact with each other so as to have a slight gap communicating with the air layer. Reheating method characterized by preventing . An annular convex portion that is an air layer maintaining portion is provided between the upper outer surface of the side plate portion of the inner container and the lower surface of the flange portion.
The reheating method according to claim 1 or 2, wherein The lid is
A lid plate portion placed on the buttocks of the inner container;
It has a cylindrical portion that protrudes downward from the outer peripheral end portion of the lid plate portion and faces the outer surface of the upper end portion of the side plate portion of the outer container.
The reheating method according to any one of claims 1 to 3, wherein: In the bottom plate of the outer container, a polygonal hole for hot air is formed,
The bottom plate portion of the inner container has a polygonal shape that fits with the inner peripheral end of the bottom plate portion of the outer container facing the hot air passage hole and regulates the rotation of the inner container relative to the outer container. The fitting part is provided. The reheating method as described in any one of Claim 1 thru | or 4 characterized by the above-mentioned.

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