JPH063227U - Coffee warm storage container - Google Patents

Abstract

(57) [Summary] [Structure] The container 1 is provided with a floating lid 3 that covers almost the entire liquid surface of the coffee 2 stored warm. The floating lid 3 has a gentle slope on the upper surface 31a and the lower surface 31b, or has a through hole 32 at the center.
It is assumed to have. [Effect] It is possible to maintain the commercial value of coffee for a long period of time without reducing the aroma and taste of coffee that is kept warm, without impairing the freedom of pouring coffee at any time. Further, since heat radiation to the outside of the container 1 is reduced, heat energy is not wasted, which leads to energy saving.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coffee heat-retaining storage container incorporated in a coffee brewing device used in restaurants and homes.

[0002]

[Prior art]

 Conventionally, in this type of coffee warming storage container, as shown in FIG. 5, for example, a lid 12 having an air hole 11 is put on the upper portion of the container 1, and the coffee 2 is fed from the bottom of the container 1 to the coffee injection valve. It is injected into the container 1 by the operation of 13 and heated by the heat-retaining heater 14 provided outside the bottom.

Further, in this type of coffee thermal storage container, for example, as shown in FIG. 6, a lid 12 provided with a coffee injection port 16 is covered on an upper portion of a container 1 surrounded by a hot water container 4. Then, the coffee 2 is poured into the container 1 through the coffee injection port 16 of the lid 12 and heated by the hot water 42 in the hot water boiling container 4 heated by the hot water heater 41.

The coffee 2 in the container 1 is kept warm at 80 to 90 ° C., which is a temperature suitable for drinking, and is poured out from the coffee pouring port 18 through the coffee pouring valve 19. In addition, the coffee 2 in the container 1 has a process in which water evaporates from the liquid surface and is cooled and condensed on the inner surface of the lid 12 and the inner surface of the side wall of the container 1 to condense and drip into the coffee liquid. Is repeating.

[0005]

[Problems to be solved by the device]

 By the way, coffee contains various aromatic hydrocarbon-based organic compounds, and volatilizes by heating to evaporate or decompose and metamorphose, and its aroma and taste change more and more as the temperature is kept warm. This change is exacerbated by the oxygen in the air when the coffee is exposed to the air.

[0006] Therefore, the coffee warm-stored and stored in the conventional coffee warm-storing storage container usually has a problem that the aroma and taste of the coffee significantly change in about 30 minutes, and the commercial value is lost. Furthermore, in order to suppress the change in the aroma and taste of coffee and keep it warm, it is possible to use a closed container from which air is removed, but doing so impairs the freedom to pour out coffee at any time. There is a problem of being lost.

Further, in the process of vaporizing and condensing the water, there is a problem that heat energy is wasted because heat is radiated to the outside of the container 1. Then, this invention was made for the purpose of solving the problem which the said conventional coffee heat retention storage container has.

[0008]

[Means for Solving the Problems]

 Therefore, the coffee warm storage container of the present invention is provided with a floating lid 3 which covers almost the entire liquid surface of the coffee 2 stored warm in the container 1. Further, in the coffee warming storage container of the present invention, the floating lid 3 has a gentle slope on the upper surface 31a and the lower surface 31b, and has a through hole 32 in the central portion.

[0009]

[Action]

 Since the coffee warming storage container of the present invention has the above means, it has the following operation. That is, almost the entire liquid surface of the coffee 2 is not exposed to the air, and the floating lid 3 moves up and down in the container 1 following the change in the storage amount of the coffee 2.

Further, the floating lid 3 can reduce evaporation of water from the liquid surface of the coffee 2.

[0011]

【Example】

 Hereinafter, the structure of the coffee warming storage container of the present invention will be described with reference to the drawings showing examples. 1 and 2 are schematic cross-sectional views of the coffee warming storage container of the present invention. The embodiment shown in FIG. 1 is a coffee thermal storage container of the type in which coffee 2 is poured from the lower part of the container 1, and a lid 12 having an air hole 11 is covered on the upper part of the container 1 to It is assumed that the floating lid 3 is provided to cover almost the entire liquid surface of the coffee 2 stored warmly. The coffee 2 is poured into the container 1 from the bottom of the container 1 by operating the coffee injection valve 13, and is heated by the heat-retaining heater 14 provided outside the bottom.

The floating lid 3 has a heat-resistant temperature of 100 ° C. or higher, such as one formed by foam-molding a heat-resistant resin that can withstand boiling of coffee, polypropylene or polymethylpentene, and has a specific gravity of 1 or more. It is suitable to be made of a small synthetic resin. In the case of foam molding, it is assumed that it has closed cells and does not absorb water.

As shown in FIG. 3, the floating lid 3 is provided with a knob 15 at the center so that it can be taken out from the container 1. Further, the floating lid 3 is adapted to move freely following changes in the storage amount of the coffee 2. Therefore, it is unavoidable that there is a gap between the periphery of the floating lid 3 and the wall surface of the container 1 where the coffee 2 comes into contact with the air, but it is preferable to make this gap as small as possible. In the embodiment, this gap is about 1 to 2 mm.

Further, as shown in FIG. 3, the floating lid 3 has a gentle slope on the upper surface 31a and the lower surface 31b. The slope of the upper surface 31a is formed so as to gradually decrease from the central portion to the peripheral portion of the floating lid 3, so that the water droplets collected on the upper surface 31a of the floating lid 3 flow down into the container 1. belongs to. The slope of the lower surface 31b is formed so as to gradually increase from the central portion to the peripheral portion of the floating lid 3, and air does not collect in the lower surface 31b of the floating lid 3 and the air escapes from the peripheral portion to the upper space. To do so.

The embodiment shown in FIG. 2 is a coffee warming storage container of the type in which coffee 2 is poured from the upper part of the container 1, and the lid 12 provided with the coffee injection port 16 is surrounded by the boiling water container 4. The upper part of the container is covered with a floating lid 3 that covers almost the entire liquid surface of the coffee 2 that is kept warm in the container 1. The coffee 2 is injected into the container 1 from the coffee injection port 16 of the lid 12 through the coffee injection pipe 17, and is heated by the hot water 42 in the hot water bath 4 heated by the hot water heater 41.

As in the case of the above-mentioned embodiment, the floating lid 3 is formed by foam-molding a heat-resistant resin that can withstand the boiling of coffee, or is made of polypropylene, polymethylpentene, or the like at 100 ° C. or higher. It is suitable to be made of synthetic resin that has a heat resistant temperature and a specific gravity of less than 1. In the case of foam molding, it is assumed to have closed cells so that it does not absorb water.

As shown in FIG. 4, the floating lid 3 is provided with a knob 15 at the center so that it can be taken out from the container 1. Further, the floating lid 3 is provided with a through hole 32 of the coffee injection pipe 17 in the knob 15 so that the floating lid 3 can freely move in accordance with the change in the storage amount of the coffee 2. Therefore, it is unavoidable that a gap in which the coffee 2 contacts the air is created between the periphery of the floating lid 3 and the wall surface of the container 1, but it is preferable to make this gap as small as possible. In the embodiment, this gap is about 1 to 2 mm.

Further, as shown in FIG. 4, the floating lid 3 has a gentle slope on the upper surface 31a and the lower surface 31b. The slope of the upper surface 31a is formed so as to gradually decrease from the central portion to the peripheral portion of the floating lid 3, so that the water droplets collected on the upper surface 31a of the floating lid 3 flow down into the container 1. belongs to. The slope of the lower surface 31b is also formed so as to gradually decrease from the central portion of the floating lid 3 to the peripheral portion thereof, so that air does not collect in the lower surface 31b of the floating lid 3 and air flows from the through hole 32 to the upper space. It's for getting away.

[0019]

[Effect of device]

 Since the coffee warming storage container of the present invention is configured as described above, it has the following effects. That is, almost the entire liquid surface of the coffee 2 is not exposed to the air, and the floating lid 3 moves up and down in the container 1 according to the change in the storage amount of the coffee 2, so that the coffee can be poured at any time. Without sacrificing the freedom to make coffee, changes in the aroma and taste of coffee stored warm can be reduced, and the commercial value of coffee can be maintained for a long time.

Further, since the evaporation of water from the liquid surface of the coffee 2 can be reduced by the floating lid 3, heat radiation to the outside of the container 1 is reduced, so that heat energy is not wasted and energy is saved. Connect

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of a coffee warming storage container of the present invention.

FIG. 2 is a schematic sectional view showing another embodiment of the coffee warming storage container of the present invention.

FIG. 3 is a partial cross-sectional side view showing an example of a floating lid of the coffee warming storage container of the present invention.

FIG. 4 is a partial cross-sectional side view showing another example of the floating lid of the coffee thermal storage container according to the present invention.

FIG. 5 is a schematic sectional view showing an example of a conventional coffee heat storage container.

FIG. 6 is a schematic cross-sectional view showing another example of the conventional coffee heat storage container.

[Explanation of symbols]

 1 Container 2 Coffee 3 Float 31a Upper surface 31b Lower surface 32 Through hole

Claims (3)

[Scope of utility model registration request] 1. A coffee warm storage container, characterized in that a coffee lid (3) is provided in the container (1) for covering substantially the entire liquid surface of the coffee (2) kept warm. 2. The floating lid 3 has an upper surface 31a and a lower surface 3.
The coffee thermal storage container according to claim 1, wherein 1b has a gentle gradient. 3. The coffee warming storage container according to claim 1, wherein the floating lid 3 has a through hole 32 in a central portion thereof.