JPH03198814A - Universal tableware made of earthenware - Google Patents

Abstract

PURPOSE:To obtain the title product wherein a heat source such as a heat generating agent, or a coolant such as cube ice or dry ice is freely stored or taken out for repeated use in the main body underneath the intermediate partition shelf, by a method wherein, the title device consists of perforated intermediate partition shelf to be mounted on a main body opening, the cross section thereof is concave, and a lid with inverted concave shape cross section, and its outer periphery is expanded to contain its lid, the inside of the main body opening periphery is engaged by a concave and convex structure so that the periphery of the main body opening is expanded in their opening diameter. CONSTITUTION:For using the title tableware as the one provided with heating function, a heat source 4 consisting of a heating agent being a unitary structure with a water bag attached with openable means is housed in the main body 1. When the water bag is opened under this state, the water contained in the bag makes contact with the heat generating agent, and causes hydration thereby generating exothermic reaction. By this reaction heat, the perforated intermediate shelf 2 is heated; simultaneously, through a plurality of small perforation 2-1, heat is transferred to a food stuff placed directly on the intermediate shelf, thereby the food-stuff is effectively heated and the heat is retained. Inversely, when the title tableware is used for cooling, the heat source contained in the main body 1 is taken out and ice cubes, dry ice and other coolant is accommodated in the main body, by the help of contained coolant, the food stuff placed on the perforated shelf 2 is effectively cooled and heat-insulated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is capable of keeping fresh foods such as seafood and meat, as well as processed foods, warm, or heating processed foods, boiled foods, grilled foods, etc. using energy such as gas or electricity. The present invention relates to a versatile pottery tableware that can be used in a single container by simply replacing the exothermic agent and refrigerant.

BACKGROUND ART Conventionally, containers with a heating function have been known as containers that can be easily heated without using energy such as gas or electricity. This container is designed to be filled with an exothermic agent such as quicklime that generates heat when it comes into contact with water, and to heat or warm the contents of the container with this exothermic agent. However, it is convenient to carry because it can heat the food inside the container, and it is highly safe because it does not use fire.

However, these exothermic agent storage containers are all made of disposable soft plastic, so even though they are convenient to carry, they are almost impossible to use repeatedly, and they only have a heating function. For example, it could not be used for foods that require constant cooling, such as sashimi and various other frozen foods. Also,
Due to the structure of the container, it was also impossible to use it as tableware.

Therefore, the foods that can be stored in containers with a heating function are limited to those for the sole purpose of heating or keeping warm, and therefore, their use is also limited to disposable lunch boxes.

In addition, as mentioned above, this type of container with a heating function is made of plastic, so depending on the temperature of the heat generated, there is a risk that the container may melt or change in quality, causing components harmful to the human body to leak out or enter the contents. It was dangerous, and sufficient caution was required when using it.

By the way, in hotels and inns that have to prepare meals for a large number of people at the same time, it takes time to prepare all the meals, and they have to be prepared in advance. During the waiting time, the food often becomes cold or loses its freshness, resulting in its original taste being lost.

Therefore, in these industries, there is a desire for ceramic tableware that has the function of preventing the food from getting cold or losing its freshness during cooking, after serving, and even during the meal. There is.

Problems to be Solved by the Invention In view of the above-mentioned circumstances, this invention does not have the above-mentioned problems of existing containers with a heating function, and can maintain the freshness and warmth of cooked food at any time and place. Moreover, the aim is to provide ceramic tableware that can be used repeatedly and has heating, heat retention, and cooling functions required by the hotel and inn industries.

Means for Solving the Problems This invention is capable of heating, keeping warm, and cooling the contents in one container by using a heat source such as a heat generating agent that does not require energy such as electricity or gas, and a refrigerant such as ice or dry ice. We have developed a versatile pottery tableware that can be given functions, and its gist is that it consists of a main body with a concave cross section, a perforated middle plate placed in the opening of the main body, and a lid with an inverted gate-shaped cross section. The periphery of the opening of the main body has an outer expansion part that allows the lid to be fitted inward to surround the perforated middle plate. It has a structure that allows the refrigerant to be stored in and taken out freely.

In addition, as a heat source, an exothermic agent such as quicklime that generates heat by reaction with water is used, and the content placed on the perforated intermediate plate is heated or kept warm by the heat of reaction between the exothermic agent and water. In addition, it is characterized by a structure in which a heat insulating material such as styrofoam is provided at the bottom and sides of the inside of the main body to suppress heat dissipation of the exothermic agent, and a refrigerant such as ice or dry ice is stored inside the main body. It is characterized by having a structure in which the contents placed on the perforated intermediate plate can be cooled by the refrigerant.

The main body, which has a concave cross section, the perforated middle plate, and the lid, which has an inverted gate cross section, are all made of pottery.The external shape is not particularly limited, but oval or rectangular shapes are common, and the size and depth are limited. The length can be determined appropriately depending on the purpose.

A perforated medium plate is a ceramic plate several layers thick with many small holes perforated throughout, and when used, cooked food or processed foods can be placed on top of the medium plate. , heated by the heat generated from the exothermic agent stored under the middle plate,
It is kept warm.

Further, by storing a refrigerant under the middle plate, food placed on the middle plate is cooled and kept cold.

The reason for providing a large number of holes in the middle plate is to enhance the heat transfer effect and cooling effect on the contents on the middle plate.

The reason why the cross-sectional shape of the lid is formed into an inverted circular shape is to ensure a space for placing food on the perforated middle plate.

The heat insulating material interposed between the main body and the heat source reduces heat dissipation to the outside, and the temperature of the tableware is increased by the radiant heat of the heat insulating material.

The perforated middle plate and lid are fixed by fitting into the outer expansion part provided at the opening of the main body, so there is almost no wobbling.
Also, it will not come off accidentally.

In addition, since the lid is fitted inside the outer expansion part so as to surround the middle plate, water droplets generated on the inner surface of the lid due to the steam generated inside will flow into the main body and will not leak out of the tableware. There is no.

The heat insulating material is provided to prevent the reaction heat of the exothermic agent stored in the tableware from dissipating to the outside as much as possible, and by interposing it between the main body and the exothermic agent, the dissipation of the reaction heat is prevented. At the same time, the radiant heat increases the temperature of the tableware.

The exothermic agent and refrigerant stored inside the main body can be taken in and out easily and quickly by removing the lid and the middle plate from the main body.

Since the main body, middle plate, and lid of this ceramic tableware are separated, they can be stored and stored separately when not in use, and can also be stacked.

Embodiment FIG. 1 is a partially cutaway front view showing an example of the earthenware all-purpose tableware according to the present invention, FIG. 2 is a partially cutaway side view of the same tableware, and FIG. 3 is an exploded perspective view of the same tableware. , (1) is a main body with a concave cross section, (2) is a perforated middle plate, (3) is a lid with an inverted gate cross section, (4) is a heat source or refrigerant, and (5) is a heat insulating material such as styrofoam. .

That is, the main body (1) of the all-purpose tableware according to the present invention has an appropriate size and depth to accommodate a heat generating agent and a refrigerant, and has an opening slightly wider than the bottom surface so that they can be stacked. The peripheral edge of the part has an outwardly expanding part (1-1) on which the perforated intermediate plate (2) and M (3) are placed and fixed.

The perforated middle plate (2) has the same shape as the opening of the main body (1) and has an outer expanding part (1-
1), and has numerous small holes (2) on the entire surface.
-1).

M (3), which has a reverse gate-shaped cross section, has an opening end that has the same shape as the main body opening, and an outer expanding part (1) provided at the main body opening.
-1) It has a size that allows the lid to fit into the concave and convex portions inside.

As the heat source stored in the tableware, for example, calcium oxide (quicklime), magnesium chloride, calcium chloride, iron oxide, etc. are used. The exothermic agent is stored in the main body (1) and brought into direct contact with the ice bag, or is filled into a bag and placed adjacent to the ice bag.

The bag used to fill the exothermic agent is made of a material that does not allow water to permeate, such as aluminum, with a large number of small holes, or a bag made of a material that absorbs water to the inside. As a means for bringing the exothermic agent into contact with water, an opening means that allows the ice bag to be easily torn by pulling a tape or string fixed to the ice bag, for example, can be used.

As the refrigerant, ice, dry ice, or something frozen by a chemical reaction is used, and these are stored in the main body (1).

When the all-purpose tableware having the above structure is used as a tableware with a heating function, a heat source (4) consisting of, for example, the above-mentioned ice bag with an opening means and an integrated heat generating agent is housed in the main body (1).

When the ice bag is opened in this state, the water in the ice bag comes into contact with the exothermic agent and causes a hydration reaction to generate heat, and at the same time, the perforated middle plate (2) is heated by this reaction heat. Heat is directly transmitted to the food on the middle plate through a large number of small holes (2-1) provided in the middle plate, and the food is efficiently heated and kept warm. Note that the lid (3) may be used as necessary.

Conversely, when the tableware is used as a tableware with a cooling function, the heat source inside the main body (1) may be removed and ice, dry ice, or other various refrigerants may be stored in the main body.

In this case as well, the refrigerant creates a perforated middle plate (2).
The food on top is efficiently cooled and kept cold.

In addition, by interposing a heat insulating material (5) between the bottom and side surfaces of the tableware body (1) and the heat source (4), heat dissipation to the outside is reduced and heat loss is reduced, and the radiant heat due to this heat insulating material is As a result, the temperature inside the tableware rises rapidly. Therefore, by using a heat insulating material, the amount of exothermic agent used can be reduced, which is economical.

As described in detail, the present invention has the following effects.

1. Food in a tableware can be efficiently heated and kept warm for any desired period of time simply by storing an exothermic agent that generates heat through a hydration reaction in the tableware.

2. By simply storing a refrigerant such as ice or dry ice inside the tableware, food in the tableware can be cooled and kept cold for any length of time.

3. Since all the members that make up the tableware are made of ceramic, they not only have good heat and cold retention effects, but also have no adverse effects on the human body, and can be used repeatedly like regular ceramic tableware.

4. Since the food is placed on the perforated middle plate, the heat transfer and cooling effects on the food are great.

5. The perforated middle plate and lid are fixed by fitting into the outer expansion part provided in the opening of the tableware body, so there is almost no wobbling, and there is no chance of the lid or middle plate accidentally coming off. Never happened.

6. Since the lid is fitted with a concave-convex shape inside the outer expansion part provided at the opening of the main body, water droplets generated on the inner surface of the lid due to the steam generated inside flow down into the main body and do not leak out of the tableware. Therefore, the area around the dishes will not get dirty with water.

7. Heat loss can be reduced by the heat insulating material interposed between the main body and the heat source, and the temperature inside the tableware can be raised by the radiant heat of the heat insulating material, so the amount of heat generating agent used can be reduced, making it economical.

8. Since the main body of the tableware, the middle plate on which food is placed, and the lid are each separated, they can be stored separately when not in use, and can also be stacked one on top of the other.

9. Since it uses a heat source that does not require energy such as electricity or gas, there is no risk of fire or other dangers and it is highly safe.

10 The structure allows heat sources such as exothermic agents and refrigerants such as ice and dry ice to be stored in and out freely, so food can be heated, kept warm, and kept cold with one tableware by simply replacing the heat source and refrigerant. be able to.

11 When preparing meals for a large number of people at hotels, inns, etc., by using Honnou tableware, the food will not get cold or lose its freshness, and the temperature will be maintained according to the food during the meal. condition can be maintained.

12 If heating, heat retention, or cold storage is not required, it can be used as a regular vessel by removing the middle plate.

13. Since the exothermic agent and refrigerant are hidden behind the middle plate and cannot be seen, the user can eat comfortably without feeling uncomfortable while eating.

14 Since the middle plate is made of ceramic, it is difficult for burnt deposits to adhere to it, and even if it does adhere to it, it can be easily removed.

15 Food on the middle plate can be kept clean by covering it as necessary while keeping it warm or cold.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing an example of the earthenware all-purpose tableware according to the present invention, FIG. 2 is a partially cutaway side view of the same tableware, and FIG. 3 is an exploded perspective view of the same tableware. 1...Main body 3...Lid, 5...Insulating material 2...Middle plate with holes 4...Heat source or refrigerant

Claims (1)

[Claims] 1. Consisting of a tableware body with a concave cross-section, a perforated middle plate placed in the opening of the main body, and a lid with an inverted concave cross-section, the periphery of the main body opening has a plate surrounding the perforated middle plate. A versatile pottery tableware characterized by having an outer expansion part that fits the lid into a concave and convex fit inside the main body, and having a structure in which a heat source or a refrigerant can be freely put in and taken out inside the main body. 2. A heating agent such as quicklime that generates heat by reaction with water is used as a heat source, and the content placed on the perforated middle plate can be heated or kept warm by the heat of reaction between the heating material and water. The earthenware all-purpose tableware according to claim 1. 3. The ceramic all-purpose tableware according to claim 1 or 2, further comprising a heat insulating material such as styrofoam on the bottom and side surfaces of the interior of the main body. 4. A versatile pottery tableware, characterized in that a refrigerant is stored inside the main body, and the contents placed on a perforated middle plate can be cooled by the refrigerant.