JP2009100822A - Reheating container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that when reheating chilled food heating is required for a long time in order to heat the entire food, since the food is not heated evenly with ordinary reheating containers, thus water contained in the food evaporates causing the food to dry. <P>SOLUTION: A reheating container consists of a body container which has a box shape with an opening in the upper surface and is equipped with a flange in the periphery of the bottom surface and a cover which has a box shape with an opening in the lower surface and is equipped with a side surface that abuts against the flange in a state that the cover is placed over the body container. An insulated space is formed between the side surface of the body container and the side surface of the cover and the body container and the cover is composed in a way that they are abut against each other at two places. The side surface of the body container is made thicker from the upper end side surface towards the bottom end side surface. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a container used for reheating with hot air in a system that reheats and provides pre-cooked food that has been refrigerated or frozen.

  Conventionally, when storing cooked dishes, the dishes are allowed to cool at room temperature, cooled to room temperature, and then stored in a refrigerator or freezer. This conventional method has a problem in terms of hygiene, such as it takes time to cool down, bacteria grow in the meantime, and the dishes are damaged, and the taste of the reheated dishes also deteriorates. .

  In recent years, therefore, a system has been used in which a cooked dish is quickly lowered using a quick cooler to a temperature at which the center temperature (core temperature) of the dish is difficult for bacteria to propagate. In general, in this system, a dish that has been cooked for 1 minute or more at a core temperature of 75 ° C or higher is reduced to 0 to 3 ° C or less within 90 minutes after cooking, and the temperature is 3 ° C or less. Save in the storage. In the case of providing a dish, a dish stored at 3 degrees or less is reheated at 75 degrees or more for 1 minute by a reheating apparatus and provided. This system has little deterioration in taste and is almost the same as immediately after cooking.

  However, in this system, when reheating a dish once lowered to a low temperature for storage, the core temperature is heated at 75 ° C. for 1 minute, and heating for a long time is required to eliminate temperature unevenness. . For this reason, the dish after reheating has lost the water | moisture content and became a problem that it dries.

Therefore, in the food heating container described in Patent Document 1, by double the lid of the container, moisture that has become steam generated from cooking that is reheated is prevented from flowing out of the container. Yes.
JP-A-2005-1444023

  However, in the food heating container described in Patent Document 1, the evaporation of moisture can be prevented, but when heating the container using hot air to warm the dish, the upper part of the container is a double lid, and the lower part of the container is a tray. Therefore, the hot air hits them little and the side part of the container hits relatively much, and the cooked food in the container is not heated uniformly, and only the side surface is locally heated. And if you try to warm up the whole without removing the temperature unevenness, it will continue to transfer heat from the side of the container to the center of the food, the part directly touching the side of the container and the nearby food ( For example, rice) may be heated too much and dry out.

  Then, this invention provides the following reheating container in view of the said subject. That is, as a first invention, a main body container having a box shape with an opening on the upper surface and having a collar on the periphery of the bottom surface, and a box shape having an opening on the lower surface, and having a side surface that strikes the collar in a state of being covered with the main body container. And a reheat container comprising a lid.

  As a second invention, the side surface of the main body container and the side surface of the lid are configured so that a space for heat insulation is formed between the two in a state where the lid is placed on the main body container. A reheat vessel according to the invention is provided.

  According to a third aspect of the invention, the side surface end of the main body container is close to the curved surface portion extending from the top surface of the lid to the side surface of the lid in a state where the lid is placed on the main body container. A reheat vessel is provided.

  As a 4th invention, the said collar provides the reheating container as described in any one of the 1st invention to the 3rd invention in which the edge part curved upwards.

  As a fifth invention, according to the fourth invention, the side portion of the lid that abuts on the collar in a state of being covered with the main body container is adapted to abut near the curved surface of the collar for warping. A reheat vessel is provided.

  As a sixth aspect of the present invention, there is provided the reheating container according to any one of the first to fourth aspects, wherein the bottom surface of the main body container is provided with legs for improving the ventilation of the bottom surface.

  As a seventh aspect of the invention, there is provided the reheating container according to any one of the first to sixth aspects, wherein the side wall of the main body container has a wall thickness that increases from the upper end surface side to the lower end surface side.

  As an eighth invention, there is provided a reheating device that houses the reheating container described in the first to seventh inventions and has a hot air outlet for blowing hot air to the side surface of the reheating container.

  According to the present invention, it is possible to provide a reheated container that can be uniformly heated and prevented from drying when the cooked food stored in the container is reheated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention should not be limited to these embodiments at all, and can be implemented in various modes without departing from the gist thereof.

  The first embodiment mainly relates to claims 1 and 6. The second embodiment mainly relates to claim 2 and the like. The third embodiment mainly relates to claim 3 and the like. The fourth embodiment mainly relates to claims 4 and 5. The fifth embodiment mainly relates to claim 7 and the like. The sixth embodiment mainly relates to claim 8 and the like.

<Embodiment 1>
<Summary of Embodiment 1>
The reheating container of the present embodiment has a collar on the periphery of the bottom surface of the main body container, and has a side surface that abuts against the collar when the lid is placed on the main body container, thereby preventing uneven temperature and drying during reheating. It is a reheating container characterized by this.

<Configuration of Embodiment 1>
The reheat container of the present embodiment is a main body container having a box shape with an opening on the upper surface and a collar on the periphery of the bottom surface, a box shape with an opening on the lower surface, and a lid having a side surface that abuts on the collar in a state of covering the main body container It consists of. FIG. 1 is a conceptual perspective view of the reheating container of the present embodiment. The reheating container of this embodiment includes a main body container (0101) and a lid (0102), and has a collar (0103) on the periphery of the bottom surface of the main body container. The collar extends from the side surface (0104) constituting the box-like structure of the main body container to the outside of the container so that the periphery of the lower end (0106) of the side surface (0105) constituting the box-like structure of the lid hits the collar. It is configured. That is, when the lid of the reheating container of the present embodiment is put on the main body container, the outer periphery of the side surface of the main body container is enclosed by the side surface of the lid.

  FIG. 2 shows a cross-sectional view for explaining the reheating container of the present embodiment. FIG. 2 is a cross-sectional view of the main body container (0201) covered with a lid (0202). A collar (0203) protrudes from the main body container to the outside from the peripheral edge of the bottom surface of the main body container. This brim is formed with a flat upper surface, and the lower end (0205) of the side surface (0204) of the lid hits the upper surface to seal the container. As a result, the dish in the reheated container is warmed, and even if water vapor is generated, it is shaped so as not to escape from the outside of the container. Further, in the reheat container of the present embodiment, the side surface of the main body container covered with the lid has a double structure consisting of the side surface (0206) of the main body container and the side surface of the lid because the lower end of the side surface of the lid hits the collar. It becomes. On the other hand, the upper surface comprised by the cover of the reheating container of this embodiment and the lower surface comprised by the main body container have a single structure. Thereby, when reheating a dish with the reheating container of this embodiment, it has a structure in which heat from the upper surface and the lower surface is more easily transmitted than the side surface of the reheating container. This is a structure in which a reheating device that reheats a dish using a reheating container, which will be described later in Embodiment 6, blows hot air in a lateral direction against the reheating container. When the side surface of the heating container does not have a double structure, heat is concentrated from the side surface, and the food in the container does not warm uniformly. Therefore, by making the side surfaces have a double structure, the heat from the side surfaces is relaxed, and the dish in the reheat container is evenly warmed. By uniformly warming the food in the reheat container, even if it is heated for a predetermined time until the whole food is warmed as in the past, it is locally hot or prevents the food from becoming hot. It is also possible.

  As shown in FIG. 2, it is desirable that the height of the side surface of the main body container of the reheating container of the present embodiment be approximately the same as the height of the side surface of the lid. If the height of the side surface of the main body container is set low, as described above, the side surface of the reheating container does not double. A contact portion between the main body container and the lid is a boundary between the inside of the container and the outside of the container, and water vapor or the like escapes from the contact portion to the outside. For this reason, if the height of the side surface of the lid is made low, the contact portion between the lid and the main body container becomes closer from the food stored in the main body container, so that water vapor easily escapes from the reheating container to the outside. . For this reason, in the reheating container of this embodiment, as shown in FIG. 2, by increasing the height of the side surface of the main body container, the side surface of the reheating container is configured to be double, By separating the contact portion with the lid, water vapor and the like are difficult to escape to the outside of the container.

  Moreover, the reheating container of this embodiment is provided with legs (0207) for improving the passage of hot air below the bottom surface of the main body container. When the dish contained in the reheating container is reheated, reheating is performed by a reheating device described later. This reheating apparatus has a structure in which hot air is circulated in a lateral direction with respect to a reheating container placed in the reheating apparatus. Legs are provided on the bottom surface of the main body container of the reheating container of the present embodiment so that the reheating apparatus rotates not only on the side surface of the reheating container on which the hot air flowing in the lateral direction blows but also on the entire surface. Due to the space constituted by the legs, the hot air circulated by the reheating device can pass through the bottom surface of the main body container, the hot air flows around the entire outer periphery of the container, and the contents of the reheating container are uniformly heated.

  <Embodiment 1 effect>

  With the reheating container of this embodiment, when contents such as cooking are put in the reheating container and reheated by the reheating device, it is possible to suppress temperature unevenness and uniformly heat the contents such as cooking. Become. In addition, since the dish in the reheating container is uniformly warmed, it is possible to prevent the contents from drying even if the dish is heated for a predetermined time until the whole dish is warmed as in the related art.

<Embodiment 2>
<Overview of Embodiment 2>
The reheating container of the present embodiment is based on Embodiment 1, and is configured such that a space is formed between the side surface of the main body container and the side surface of the lid in a state where the lid is placed on the main body container. It is characterized by being.

<Embodiment 2 configuration>
The reheating container of the present embodiment is configured such that a space for heat insulation is formed between the side surface of the main body container and the side surface of the lid in a state where the lid is placed on the main body container. FIG. 3 shows a conceptual cross-sectional view of the reheating container of the present embodiment. FIG. 3 is a cross-sectional view of the main body container (0301) covered with a lid (0302). The reheating container of the present embodiment has a space (0305) between the side surface (0303) of the lid and the side surface (0304) of the main body container. This space is insulated so that the heat given from the reheating device described in Embodiment 6 from the side surface direction is less likely to be transferred to the container contents. It is also possible to control the way heat is transferred by the thickness of the space between the side surface of the lid and the side surface of the main body container.

  Here, the space for heat insulation described in the present embodiment is a space configured by intentionally preventing the side surface of the lid from contacting the side surface of the main body container. The space for heat insulation is different from the space for operating margin provided so that the lid can be smoothly opened and closed when the main body container is covered with the lid, for example. The space for heat insulation is provided, for example, by leaving a maximum distance of 1 mm or more between the side surface of the lid and the side surface of the main body container.

<Embodiment 2 effect>
By providing a space between the side surface of the main body container of the reheating container and the side surface of the lid, the heat insulation of the side surface of the reheating container is improved. Thereby, when it reheats with the reheating apparatus using the reheating container of this embodiment, it becomes possible to heat a content more uniformly.

<Embodiment 3>
<Overview of Embodiment 3>
The reheating container of the present embodiment is based on the reheating container of Embodiments 1 and 2, and the side end of the main body container is close to the curved surface inside the cover with the cover on. It is the reheating container characterized by comprising.

<Embodiment 3 configuration>
In the reheating container of the present embodiment, the side surface end of the main body container is close to the curved surface portion extending from the upper surface of the lid to the side surface of the lid in a state where the lid is placed on the main body container.

  FIG. 4 shows a cross-sectional view of the reheating container of the present embodiment. FIG. 4A is a cross-sectional view of the main body container (0401) covered with a lid (0402). In the reheat container of the present embodiment, with the lid placed on the main body container, the collar (0403) at the periphery of the bottom surface of the main body container and the lower end of the side surface (0404) are close to each other. [0405] The end portion is close to the curved surface portion (0406) from the upper surface of the lid to the side surface of the lid. In the reheat container of the present embodiment, when the lid is put on the main body container, the side surface of the lid hits the collar of the main body container, and the main body container and the lid are close to each other at the curved surface portion extending from the upper surface of the lid to the side surface of the lid. is doing. By approaching the curved surface part from the top surface to the side surface of the lid, when reheating using the reheating container, water vapor generated from the cooking that is the contents of the reheating container is difficult to escape to the outside of the reheating container. It is comprised so that it may become. In addition, the air that exists in the space for heat insulation that is warmed by the hot air supplied from the reheating device because the side surface end portion of the main body container is close to the curved surface portion from the upper surface of the lid to the side surface of the lid. However, it becomes difficult to enter the inside of the main body container.

  Further, when the side surface end of the main body container is configured with a curve, the upper surface portion of the lid is curved so as to follow the curve of the side surface end of the main body container in the curved surface portion from the upper surface of the lid to the side surface of the lid. It is good also as a structure. As a result, the proximity of the main body container and the lid increases, and the outflow of water vapor to the main body container can be suppressed.

  Further, the main body container and the lid may be in contact with each other at a curved surface portion from the upper surface of the lid to the side surface of the lid. By bringing the main body container and the lid into contact with the curved surface portion from the upper surface of the lid to the side surface of the lid, the airtightness is further improved, and when the reheating container is used for reheating, the contents of the reheating container Water vapor generated from a certain dish can be made difficult to escape to the outside of the reheating container. When the side end portion of the main body container is configured with a curve, the side end portion of the main body container is brought into contact with the curved surface portion from the top surface of the lid to the side surface of the lid in a state of covering the main body container, It is possible to increase the contact area between the side surface end portion of the main body container and the curved surface portion of the lid. Thereby, the confidentiality of a reheating container increases and it becomes difficult to escape the water vapor | steam generated from the cooking used as the contents of a reheating container to the exterior of a reheating container. At this time, by increasing the curvature of the curved surface portion from the top surface of the lid to the side surface of the lid, compared with the curvature of the portion of the side surface end of the main body container that contacts the curved surface portion of the lid, The contact area with the curved surface portion of the lid is further increased. Moreover, you may comprise the side surface edge part of a main body container, or the curved surface part from the upper surface of a lid | cover to the side surface of a lid | cover with a flexible material or a removable packing. By configuring the side end of the main body container with a flexible material, when the side end of the main body container comes into contact with the curved surface from the upper surface of the lid to the side of the lid, The part follows and the side end of the main body container bends in the inner direction of the main body container. Thereby, the side edge part of a main body container and the curved surface part of a lid | cover contact reliably, and a contact area also becomes large.

  Further, as shown in FIG. 4B, a protrusion (0407) may be provided in the vicinity of the curved surface portion of the lid so that the range of the proximity portion between the lid and the main body container is increased. . Thus, by providing a protrusion in the vicinity of the curved surface of the lid, when reheating using the reheating container, water vapor generated from the dish that is the contents of the reheating container is made difficult to escape to the outside of the reheating container. be able to.

<Embodiment 3 effects>
Like the reheating container of the present embodiment, when the main body container and the lid are brought close to each other at the curved surface portion from the upper surface of the lid to the side surface of the lid, The water vapor generated from the dish, which is the contents of, becomes difficult to escape to the outside of the reheating container. In addition, it is possible to further improve the airtightness of the reheating container by bringing the main body container and the lid into contact with each other at a curved surface portion extending from the upper surface of the lid to the side surface of the lid.

<Embodiment 4>
<Outline of Embodiment 4>
The present embodiment is a reheating container characterized in that the end of the collar provided on the peripheral edge of the bottom surface of the main body container is warped upward, based on Embodiments 1, 2, and 3. . Furthermore, the reheating container of this embodiment is characterized in that the side surface portion of the lid is configured to abut against the curved surface of the collar.

<Embodiment 4 configuration>
FIG. 5 shows a cross-sectional view of the reheating container of the present embodiment. FIG. 5 is a cross-sectional view of the main body container (0501) covered with a lid (0502). As for the reheating container of this embodiment, the edge part of the collar (0503) provided in the bottom face peripheral part of the main body container has curved upwards. As shown in the enlarged view of FIG. 5, even if moisture is evaporated from the dish in the reheating container at the time of reheating and leaks from the contact portion of the collar and the lid, Becomes water droplets (0504) and collects on the outside and inside of the container at the contact portion between the collar and the lid. By collecting water droplets inside and outside the container at the contact portion between the collar and the lid, it is possible to close the contact portion with the water droplet and to further suppress the outflow of water vapor to the outside of the container.

  Moreover, in the reheating container of this embodiment, the side surface lower end part of the lid is configured to abut against the vicinity of the curved surface of the collar. When the lower end of the side surface of the lid abuts near the curved surface of the collar, the contact area between the lid and the collar is small as shown in FIG. 6 (a), but the lower end of the side surface of the lid as shown in (b). It is also possible to increase the contact area between the lid and the collar by constructing so as to abut the vicinity of the curved surface of the collar. By increasing the contact area between the lid and the collar, the airtightness of the reheating container is further improved.

<Embodiment 4 Effect>
Like the reheating container of the present embodiment, the end of the collar provided on the periphery of the bottom surface of the main body container is configured to warp upward, and the side surface portion of the lid is configured to abut against the curved surface of the collar. Thus, the airtightness of the reheating container is improved, and the water vapor generated from the cooking in the reheating container at the time of reheating becomes difficult to escape to the outside of the reheating container. Thereby, drying of the dish by reheating can be prevented.

<Embodiment 5>
<Overview of Embodiment 5>
This embodiment is based on the reheat container of Embodiments 1 to 5, and further, the side wall thickness increases as the side surface of the main body container moves from the upper end surface side to the lower end surface side. Reheated container.

<Embodiment 5 configuration>
In the reheating container of the present embodiment, the wall thickness increases as the side surface of the main body container moves from the upper end surface side to the lower end surface side. FIG. 7 shows a cross-sectional view of the reheating container of the present embodiment. FIG. 7 is a cross-sectional view of the main body container (0701) covered with a lid (0702). By making the wall thickness on the lower end surface side of the side surface (0703) of the main body container thicker than the upper end surface side, the lower end surface side is less likely to transfer heat from the outside than the upper end surface side. As shown in FIG. 7, the dish (0704) to be reheated in the reheating container is stored at a height of about half of the reheating container. And the wall thickness is thickened to the part which a dish touches the side surface of a main body container, and the heat transfer by a hot air is eased. On the other hand, there is no need to increase the wall thickness on the upper end side because it is not a part touching the dish, and the wall thickness on the upper end side is made thinner than the wall thickness on the lower end side, making it easier to conduct heat. This assists the heat applied from the top surface of the reheat vessel.
<Embodiment 5 effects>
Heat transfer from the side surface of the reheating container is configured such that the wall thickness of the side surface increases as the side surface of the main body container moves from the upper end surface side to the lower end surface side as in the reheating container of the present embodiment. Can be relieved, and it becomes possible to warm the dish more uniformly.

<Embodiment 6>
<Summary of Embodiment 6>
This embodiment relates to a reheating apparatus that houses the reheating container described in the first to fifth embodiments and performs reheating. As described above, the reheating device is a device that reheats the food frozen and stored in the reheating container at 75 ° C. or more for 1 minute.

<Sixth Embodiment Configuration>
The reheating device of the present embodiment accommodates a reheating container and has a hot air outlet for blowing hot air from the side to the reheating container. FIG. 8 shows an example of a reheating device. (A) is a perspective view of a reheating apparatus (0801). The reheating container (0802) described in the first to fifth embodiments is placed on a tray (0803) or the like and installed on each shelf in the reheating apparatus. Behind the reheating device, hot air generating means (0806) for heating the air in the reheating device is provided. The hot air that has been heat-converted to heat the dishes by the hot air generating means passes through the inside of the side wall of the reheating device and is placed on the tray from the hot air outlet (0804) provided on the inner surface of the side wall. Released towards the reheat vessel. The heated hot air hitting the reheating container returns to the hot air generating means from the suction port (0807), is heated again, and then circulated so as to be discharged from the hot air outlet again. When the reheating container was arrange | positioned to the reheating apparatus in (b), the schematic diagram when the reheating apparatus was seen from the side surface was shown. Hot air (0805) discharged from the hot air outlet of the reheating device hits the reheating container from the side so as to pass through the gaps between the plurality of trays arranged in the vertical direction. At this time, since the leg is provided on the bottom surface of the container main body of the reheating container, a space is formed between the tray and the container main body, and hot air passes through this space.

  In addition, cooking is not limited to hot meals, and one meal may contain hot and cold meals. Therefore, as shown in FIG. 9, a partition (0902) is provided inside the reheating device (0901), one is a room for hot food (0903) (0904), and the other is a room for cold food (0905) (0906). It may be as. At this time, a partition is provided in the reheating device to prevent hot air from hitting the cold food, but depending on the type and application of the meal, the partition can be removed to make the whole for hot or cold food. It may be possible to switch. The partition is configured to have a shutter shape in which the partition is opened up and down when the cold food and the hot food are put on an integrated tray to be warmed, so that the hot air is not applied to the cold food. Further, the tray may be a tray on which cold food and hot food as shown in FIG. 9 are integrated, but may be heated by independent trays.

<Embodiment 6 effects>
With the reheating container of the present embodiment, it is possible to uniformly warm the dishes stored in the reheating container without drying.

The perspective view for demonstrating the reheating container of Embodiment 1. FIG. Sectional drawing for demonstrating the reheating container of Embodiment 1. FIG. Sectional drawing for demonstrating the reheating container of Embodiment 2. FIG. Sectional drawing for demonstrating the reheating container of Embodiment 3. Sectional drawing for demonstrating the reheating container of Embodiment 4. Sectional drawing for demonstrating the reheating container of Embodiment 4. Sectional drawing for demonstrating the reheating container of Embodiment 5. Example of reheating device of embodiment 6 Example of reheating device of embodiment 6

Explanation of symbols

0701 Main body container 0702 Lid 0703 Main body container side face 0704 Cooking

Claims (8)

A main body container having a box shape with an opening on the top surface and a collar on the periphery of the bottom surface portion;
A lid having a box shape with an opening on the lower surface, and a lid having a side surface that contacts the collar in a state of being covered with the main body container;
A reheat container consisting of.   The reheating container according to claim 1, wherein the side surface of the main body container and the side surface of the lid are configured such that a space for heat insulation is formed between the two in a state where the lid is placed on the main body container.   The reheating container according to claim 1 or 2, wherein the side end portion of the main body container is close to a curved surface portion extending from the upper surface of the lid to the side surface of the lid in a state where the lid is placed on the main body container.   The reheat container according to any one of claims 1 to 3, wherein an end of the collar is warped upward.   The reheating container according to claim 4, wherein the portion of the side surface of the lid that abuts on the collar in a state of being covered with the main body container is configured to abut on the vicinity of the curved surface of the collar for warping.   The reheating container according to any one of claims 1 to 4, wherein a leg for improving ventilation of the bottom surface is provided on the bottom surface of the main body container.   The reheating container according to any one of claims 1 to 6, wherein the side wall of the main body container has a wall thickness that increases from the upper end surface side to the lower end surface side.   The reheating apparatus which accommodates the reheating container of Claim 1 to 7, and has a hot air blower outlet for blowing a hot air from the side with respect to a reheating container.