JP3240968U - food storage and heating container - Google Patents

Abstract

[PROBLEMS] To provide a food storage and heating container for storing cooked food and serving the food in a state in which the stored food is warmed by heating in a microwave oven. The container is composed of an outer container with an upper opening, an inner container with an upper opening that is detachably fitted in the outer container, and a lid that covers the opening of the outer container in a sealed state. The container is provided with an outward flange on the upper opening edge, and slits are arranged along the flange to form a water storage chamber between the bottom wall of the outer container and the inner container, and form a steam passage between the peripheral walls. By heating in a microwave oven, high-temperature steam rising through the steam passage from the water storage chamber is pressurized by entering the interior of the inner container through the slit. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a food storage and heating container for storing cooked food and serving the stored food in a state of being warmed by microwave heating.

Conventionally, food storage containers for storing cooked foodstuffs are known and provided as lids for foodstuffs.

Many food storage containers are configured so that the food can be heated by being placed in a microwave oven while the food is still contained therein, so that the food can be eaten while being warmed. In other words, it is provided as a food storage and heating container.

Japanese Patent Application Laid-Open No. 2022-102432 Japanese Patent Application Laid-Open No. 2014-981

By the way, conventional food storage and heating containers are only molded from heat-resistant plastics such as polypropylene in order to be compatible with microwave ovens. In particular, there is an unsolved problem as to how to configure the microwave oven so that it can be warmed deliciously when the cooked foodstuffs stored in the microwave oven are heated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a food storage and heating container that can warm cooked food deliciously when heated in a microwave oven while it is being stored.

Therefore, what the present invention consists of is a food storage and heating container for storing cooked food and serving the food in a state where the stored food is warmed by microwave heating, and has a bottom wall and a peripheral wall. an upper-opening outer container having a top-opening shape, an inner container having an upper-opening shape, which is detachably fitted in the outer container and having a bottom wall and a peripheral wall, and an opening of the outer container in which the inner container is fitted. The inner container is provided with an outward flange on the upper opening edge, a slit penetrating the upper end of the peripheral wall adjacent to the flange, and the slit is formed in the peripheral wall. The flanges are arranged in rows at intervals in the circumferential direction, and the flanges are brought close to the lower surface of the lid body. A steam passage is formed between the peripheral walls, the steam passage communicates with the slit, the cooked food is accommodated in the inner container fitted inside the outer container, water is retained in the water reservoir chamber, and the outer container is filled with water. The container is covered with a lid and heated in a microwave oven to allow high-temperature steam rising in the steam passage to enter the inner container through the slit and pressurize the inside. .

At this time, the slit of the inner container is preferably formed across the upper end portion of the peripheral wall of the inner container and the flange.

In a preferred embodiment of the present invention, the lid is provided with a vent formed in a concave portion recessed from the upper surface, and a vertically rotatable operation piece for opening and closing the vent, and the operation piece is rotatable. A valve for opening and closing the ventilation hole and a swinging arm are provided on both sides of the shaft. With the valve inserted into the ventilation hole, the swinging arm is in a horizontal position, and the valve is pushed up from the ventilation hole. The oscillating arm is rotatable so as to be in a downwardly inclined posture when the oscillating arm is tilted, and the concave portion contacts the oscillating arm when the oscillating arm rotates between the horizontal posture and the downward posture. A control means is provided which prevents rotation by the movement of the shaft and permits rotation when a predetermined force is applied.

According to the present invention, it is possible to store cooked foodstuffs and serve them to meals in a state in which the preserved foodstuffs are warmed by heating in a microwave oven. It is possible to provide a food storage and heating container that can be deliciously reheated.

1 is a perspective view showing an outer container, an inner container, and a lid in a separated state with respect to a food storage and heating container according to an embodiment of the present invention; FIG. (A) is a cross-sectional view of a state in which the inner container is fitted inside the outer container and covered with a lid, (B) is an enlarged cross-sectional view of a state in which the vent of the lid is closed, and (C) is a lid. is a cross-sectional view of a state in which the air vent is open. FIG. 4 is a cross-sectional view showing the action when the food storage and heating container is heated with a microwave oven. 4 is a cross-sectional view taken along line AA of FIG. 3; FIG.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 and 2, the food storage and heating container is composed of an outer container 1, an inner container 2, and a lid 3, which are integrally made of plastic that can withstand microwave heating, such as polypropylene. molded.

(outer container)
The outer container 1 is composed of a bottom wall 4 which is rectangular in plan view, and a top-opening container having a peripheral wall 5 rising from four sides of the bottom wall. An outward flange-shaped rib 7 is formed on the lower side of the portion 6, and a grip portion 8 projecting from two opposite sides of the rib 7 is provided.

(inner container)
The inner container 2 comprises a bottom wall 9 that can be fitted inside the outer container 1 and a peripheral wall 10 that rises from four sides of the bottom wall. An outward flange 11 is provided at the bottom wall 9, and a seat piece 12 (see FIG. 2A) protrudes from the bottom surface at the corner portion of the bottom wall 9. As shown in FIG.

A slit 13 is formed through the upper end portion of the peripheral wall 5 of the inner container 2, and a large number of slits 13 are arranged along the entire periphery of the peripheral wall 5 at intervals in the circumferential direction. At this time, the slit 13 may be formed only in the upper end portion of the peripheral wall 10 , but in the illustrated embodiment, it is formed so as to extend over the upper end portion of the peripheral wall 10 and the flange 11 .

As shown in FIG. 2(A), when the inner container 2 is fitted into the outer container 1, the seat piece 12 is placed on the bottom wall 4 of the outer container 1 so that both containers 1 and 2 are separated. A water storage chamber 14 is formed between the bottom walls 4 and 9 .

Moreover, in this state, the steam passage 15 is formed between the peripheral walls 5 and 9 of the two containers 1 and 2. The steam passage 15 is formed along the entire periphery of the peripheral walls 5 and 9, All the slits 13 are communicated with each other.

Furthermore, in a state in which the inner container 2 is fitted inside the outer container 1, the outer peripheral edge of the flange 11 of the inner container 2 is brought close to the inner peripheral edge of the upper end portion of the peripheral wall 5 of the outer container 1, thereby positioning. Therefore, the steam passage 15 is formed all around.

At this time, the height of the upper end of the flange 11 of the inner container 2 does not exceed the upper end of the opening edge 6 of the outer container 1, but extends to a position close to it, so that the lid 3 can be lifted as described later. It is configured such that the upper end of the flange 11 is brought close to the lower surface of the lid 3 when it is fitted onto the opening edge 6 of the outer container 1 .

(Lid body)
The lid body 3 forms an annular band 17 extending in a rectangular shape along the periphery of a rectangular lid plate portion 16 covering the upper opening of the inner container 2, and a fitting portion 18 is formed from the outer peripheral edge of the annular band. A vertically extending rib 19 protrudes outward from the lower edge of the fitting portion 18 .

As shown in FIG. 2, the lid 3 covers the outer container 1 by fitting the fitting portion 18 onto the opening edge 6 of the outer container 1 . At this time, the inner container 2 is fitted into the outer container 1 , and the lower surface of the annular belt 17 of the lid 3 is positioned against the upper end of the opening edge 6 of the outer container 1 and the upper end of the flange 11 of the inner container 2 . are configured to be in close proximity to each other.

In the illustrated embodiment, the lid 3 has a recess 20 which is recessed from the upper surface. Inside the recess 20 is a ventilation hole 21 and a vertically rotatable operation piece for opening and closing the ventilation hole 21 . 22 are provided.

The operating piece 22 forms a seesaw centered on a rotating shaft 23, and is provided with a valve 24 for opening and closing the vent hole 21 and a swing arm 25 located on both sides of the rotating shaft. there is As shown in FIGS. 2B and 2C, when the valve 24 is inserted into the vent hole 21 and closed, the swing arm 25 of the operation piece 22 is in a horizontal position, and the valve 24 is pushed up from the vent hole 21. As shown in FIGS. The swing arm 25 is configured to be rotatable so as to assume a downward posture in a state in which it has escaped.

At this time, when the swing arm 25 rotates between the horizontal posture and the downward posture, the concave portion 20 contacts the swing arm 25 to prevent the rotation, and when a predetermined force is applied, the recess 20 prevents the swing arm 25 from rotating. A control means 26 is provided which is formed by a projection which permits rotation.

(Action)
When preserving cooked foodstuffs in the food storage and heating container of the present invention, the foodstuffs or foodstuffs F are stored in the inner container 2, fitted in the outer container 1, and covered with the lid body 3. Store in a designated place, such as a refrigerator. The terms food and food used in this specification do not have any particular meanings.

Therefore, in the case where the preserved foodstuffs are warmed by microwave heating and served for a meal, once the lid 3 is opened, water W is injected into the water storage chamber 14, and after the lid is closed again, Put in the microwave and heat. Incidentally, when preserving food, water may be poured into the water storage chamber 14 in advance, and the food may be preserved in a refrigerator or the like in that state.

As shown in FIGS. 3 and 4, the food F in the inner container 2 and the water W in the water reservoir 14 are simultaneously heated by the microwave oven, whereby steam S rises from the water reservoir 14 toward the steam passage 15. , the rising steam enters the upper space of the inner container 2 through the slit 13 as indicated by the arrow in the drawing, thereby applying pressure P to the foodstuff F from above to below.

The upper end of the steam passage 15 is narrowed by the opening edge 6 of the outer container 1 and the flange 11 of the inner container 2 which are arranged close to each other, and furthermore, the annular band 17 of the lid 3 is arranged close to it. Therefore, the internal pressure of the steam passage 15 can be sufficiently increased by the steam S rising from the water reservoir chamber 14 .

For this reason, the steam S brought into a high-pressure state in the steam passage 15 is ejected toward the inside of the inner container 2 using the slit 13 as an orifice, and by increasing the internal pressure of the inner container 2, the food F is made as if it were freshly prepared. It's delicious, fluffy and can be reheated.

By the way, even after the internal pressure of the inner container 2 is increased as described above, the microwave oven heating is continued, and the steam pressure acting from the water pool chamber 14 through the steam passage 15 further increases the internal pressure of the inner container 2. When the pressure is increased, the pressure acts on the vent hole 21 provided in the recess 20 of the lid 3 to push up the valve 24 . When a pressing force exceeding a predetermined pressure is applied, the swing arm 25 climbs over the control means 26 to rotate the operating piece 22 and open the vent hole 21 . Thereby, the internal pressure of the inner container 2 can be reduced.

The delicious food F warmed by heating in the microwave oven may be transferred from the inner container 2 to a plate or other tableware, and served for meals as appropriate. The operation piece 22 can be returned to its original horizontal position by pushing down the valve 24 with the user's fingertip.

1 Outer container 2 Inner container 3 Lid 4 Bottom wall 5 Peripheral wall 6 Opening edge 7 Rib 8 Handle 9 Bottom wall 10 Peripheral wall 11 Flange 12 Seat piece 13 Slit 14 Water reservoir 15 Steam passage 16 Lid plate 17 Annular band 18 Fit Attachment 19 Rib 20 Recess 21 Vent hole 22 Operation piece 23 Rotating shaft 24 Valve 25 Swing arm 26 Control means F Food material W Water S Steam P Pressure

Claims (3)

A food storage and heating container for storing cooked food and serving the food in a state in which the stored food is warmed by microwave heating,
An outer container (1) having an upper opening and having a bottom wall (4) and a peripheral wall (5); Consists of an inner container (2) with an upper opening and a lid body (3) that seals and covers the opening of the outer container in which the inner container is fitted,
The inner container (2) is provided with an outward flange (11) at the upper opening edge, and a slit (13) passing through the upper end of the peripheral wall adjacent to the flange, and the slits are spaced apart in the peripheral direction of the peripheral wall. are arranged in a row with openings, and the flange is brought close to the lower surface of the lid,
The outer container and the inner container form a water storage chamber (14) between the bottom walls of both containers, form a steam passage (15) between the peripheral walls of both containers, and pass the steam passage through the slit (13). is connected to
The cooked food is stored in the inner container fitted inside the outer container, water is retained in the water storage chamber (14), and the outer container is covered with a lid and heated in a microwave oven to generate steam. A container for preserving and heating food, characterized in that the high-temperature steam rising through the passageway (15) enters the interior of the inner container (2) through a slit to pressurize the interior. 2. The food storage and heating container according to claim 1, wherein the slit (13) of the inner container is formed across the upper end of the peripheral wall (10) of the inner container and the flange (11). The lid body (3) has a vent hole (21) in a recess (20) recessed from the upper surface, and a vertically rotatable operation piece (22) for opening and closing the vent hole,
The operation piece is positioned on both sides of the pivot shaft (23) and has a valve (24) for opening and closing the ventilation hole and a swing arm (25). The swing arm is horizontal and is rotatable so that when the valve is pushed up from the vent hole, the swing arm is tilted downward,
When the swing arm rotates between the horizontal posture and the downward posture, the concave portion prevents the swing arm from rotating by contacting the swing arm, and allows the swing arm to rotate when a predetermined force is applied. 3. Food storage and heating container according to claim 1 or 2, characterized in that means (26) are provided.

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