JP2009247831A - Coffee maker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coffee maker which can always supply coffee powder with high-temperature hot water suitable for extracting coffee by simple constitution. <P>SOLUTION: The coffee maker includes heating means 3 which heats water from a water container 2, water raising means 11 which guides hot water heated by the heating means 3 to the top of a body 1, and hot water supply means 14 which supplies hot water to a coffee extracting chamber 6 which extracts a coffee liquid. The aperture part 12 of the water raising means 11 communicates with the hot water supply means 14 through a gap 13c. When heating is started, low-temperature water in the water raising means 11 is pressed up by the pressure of following high-temperature hot water. When reaching the aperture part 12 of the water raising means 11, the low-temperature water drops through the gap 13c, and only the following hot water skips the gap 13c by vapor pressure to reach the hot water supply means 14. Thus, hot water at a temperature suitable for extracting coffee is reliably sprayed to the coffee powder. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a coffee kettle for extracting coffee liquid by supplying hot water to coffee powder with hot water supply means.

  This type of conventional coffee boiling machine is designed to obtain an extract by putting ground coffee beans in a paper filter set in a coffee extraction chamber and supplying hot water from the coffee beans (for example, Patent Literature 1).

  In addition, in order to increase the hot water supply temperature to a temperature suitable for coffee extraction in order to obtain delicious coffee, the temperature of the water in the water container is raised by the heating means, returned to the water container again, and the water is again heated by the heating means. Some have been configured to raise the temperature, lead to the water raising means, and pour into the coffee powder in the coffee extraction chamber through the hot water supply section (see, for example, Patent Document 2).

  FIG. 5 shows a cross-sectional view of a conventional coffee cooker described in Patent Document 2.

In FIG. 5, a main body 1 of a conventional coffee cooker includes a water container 2 for storing water, a heating means 3 for heating water, a hot water supply unit 4 for discharging heated hot water, and hot water for the hot water supply unit 4. It has a hot water supply means 5 for sending and a coffee extraction chamber 6 for extracting coffee liquid, and a water supply port 7a and a water supply port 7b for supplying water to the heating means 3 are provided inside the water container 2, and the heating means is provided from the water supply port 7a. The water entered in 3 is warmed and discharged from the circulation port 8 inside the water container 2 and supplied again to the heating means 3 from the water supply port 7b. Water passes through watering means 9 having water quality improving means made of activated carbon or the like provided between hot water supply unit 4 and coffee extraction chamber 6 and is sprinkled into coffee powder. 10 is a storage container for storing the extracted coffee liquid.
JP 60-38427 A JP 63-102720 A

  However, in the configuration of the conventional coffee cooker described in Patent Document 2 in which the hot-water supply temperature is raised, the special means different from the heating means used in the general coffee cooker described in Patent Document 1 is used. It was necessary to use a proper heating means. Further, in order to drain the water heated in the water container, the water container needs to use a material that is durable against heat and water vapor. Therefore, both have the problem that the specifications are complicated and the cost of the coffee kettle increases.

  The present invention solves the above-described conventional problems, and removes the low temperature portion of the hot water boiled by the heating means with an easy means, and the temperature of the hot water supplied from the water container to the coffee extraction chamber is suitable for coffee extraction. The purpose is to provide a coffee oven that can extract delicious coffee at a high temperature.

In order to solve the above-mentioned conventional problems, a coffee machine of the present invention is obtained by a water container, a heating means for heating water from the water container, a coffee extraction chamber for extracting coffee liquid, and the heating means. Water supply means for guiding hot water to the upper part of the main body, hot water supply means for supplying hot water to the coffee extraction chamber, and a storage container for storing the extracted coffee liquid, and an opening of the water supply means and the hot water supply means. It was communicated through a gap, and at the start of heating, water was supplied into the water raising means up to the level of the water inside the water container by the siphon principle, and low-temperature water that did not become hot water by the heating means boiled subsequently When it is pushed up by the pressure of hot water and reaches the opening of the water raising means, the low temperature water falls from the gap between the opening of the water raising means and the hot water supply means, and the subsequent hot water is Hot water supplier jumping over the gap Reached, since the hot water to the coffee brewing chamber, it is possible to reliably sprinkling hot water temperature suitable for the coffee extract in the coffee powder, it can be obtained good coffee.

  Since the high-temperature hot water suitable for coffee extraction can be supplied to the coffee powder with an easy configuration, the coffee kettle of the present invention can provide a low-cost coffee kettle that can extract delicious coffee.

  1st invention is a water container, the heating means which heats the water from the said water container, the coffee extraction chamber which extracts coffee liquid, and the water raising means which guides the hot water obtained by the said heating means to the upper part of a main body A hot water supply means for supplying hot water to the coffee extraction chamber, and a storage container for storing the extracted coffee liquid, wherein the opening of the water raising means and the hot water supply means are communicated with each other through a gap, At the start, low-temperature water that does not become hot water by the heating means is pushed up by the pressure of the boiling water that is supplied to the level of the water inside the water container by the siphon principle, and is heated by the subsequent boiling water pressure. When reaching the opening, the low-temperature water falls from the gap between the opening of the water raising means and the hot water supply means, and the subsequent hot water jumps over the gap and reaches the hot water supply means due to the vapor pressure, Since hot water is supplied to the coffee extraction room, The temperature hot water suitable for Hi extraction can be reliably watering coffee powder, it can be obtained good coffee.

  In the second invention, in particular, a high space part is arranged above the periphery of the opening of the water raising means of the first invention, and a low space part is arranged below, and the high space part is connected to the hot water supply means. The low space part is provided so as to communicate with the drainage part that opens in the water container. Low-temperature hot water or water that is not sufficiently heated falls into the low space part through the gap, and the drainage part It can be returned to the water container and only hot water can be reliably sent to the hot water supply means, and delicious coffee can be obtained.

  In particular, the third invention is such that the high space portion of the second invention is provided in the extending direction of the opening portion of the water raising means, and the lower portion of the high space portion is provided so as to communicate with the hot water supply means. The hot water blown from the opening of the means is received in a high space, and the hot water flowing downward from there is sent to the hot water supply means, so that the hot water can be surely guided to the coffee extraction chamber.

  The fourth aspect of the invention is, in particular, provided with an inclined part in the upper part of the water raising means of any one of the first to third inventions and provided with an opening in the inclined part, rather than blowing hot water in the vertical direction. Can easily separate hot water and cold water.

  In the fifth invention, in particular, the hot water supply means according to any one of the second to fourth inventions is inclined so that the downstream side is downward, and the flow rate of the hot water whose flow velocity has dropped in the space portion is Since it is accelerated by the inclination of the means, the water spraying performance to the coffee powder is not deteriorated, and always good coffee can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a coffee kettle according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view showing a state at the time of starting the heating of the coffee kettle, and FIG. 3 is a heating of the coffee kettle FIG. 4 is a cross-sectional view showing a state in which hot water that has become hot water by the heating means of the coffee boiling device is ejected from the water rising means. In addition, about the same part as the said conventional coffee cooker, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 1, a water container 2 for storing water is installed on one side of a main body 1 provided with a heating means 3 made of an electric heater or the like. The water from the water container 2 is heated by the heating means 3 through the water supply port 7 having a reverse valve (not shown) to become hot water, passes through the water raising means 11, and the opening 12 of the water raising means 11. To the space 13 provided around the.

  The hot water is discharged from the high space portion 13 b provided in a stepped state in the space portion 13, through the water supply means 14, and from the hot water supply portion 4 at the tip located above the main body 2.

  The opening 12 at the downstream end of the water raising means 11 is provided in the inclined part 17 of the water raising means 11, and the high space 13 b is disposed on the extension. The hot water supply means 14 is inclined from the high space portion 13 b toward the hot water supply portion 4. A watering means 9 is disposed below the hot water supply unit 4, and a coffee extraction chamber 6 and a storage container 10 are disposed below the watering means 9.

  A gap 13c is formed between the opening portion 12 of the water raising means 11 and the hot water supply means 14, and the low space portion 13a of the space portion 13 communicates with the drainage portion 15 that opens into the water container 2 through the gap 13c. Is configured to do.

  The operation and action of the coffee kettle according to the present embodiment configured as described above will be described below with reference to FIGS.

  First, FIG. 2 shows a state in which ground coffee beans (not shown) are put into the coffee extraction chamber 6, water is put into the water container 2 and set in the main body 1. It passes through the heating means 3 and flows into the same water level 18 b as the water level 18 a of the water container 2 in the middle of the water raising means 11. The water 16a in the heating means 3 is heated to become hot water 16a, boils in the heating means 3, and the hot water 16a is applied to both ends of the heating means 3 by the vapor pressure. It will go only to the direction of the water raising means 11 by the reverse support valve (not shown) provided in this.

  Due to the action of the vapor pressure, the hot water 16 a ascends the water rising means 11 and reaches the opening 12 of the water rising means 11. At this time, the temperature of the cold water 16b that has been inside the water raising means 11 is hardly raised because it is not warmed.

  In FIG. 3, the cold water 16b spills to the lower side where the low space portion 13a is located through the gap 13c of the space portion 13 at the opening portion 12 of the water raising means 11 due to the same phenomenon as that of a naturally occurring steam spring. The spilled cold water 16 b is returned from the drainage part 15 into the water container 2.

  On the other hand, the hot water 16a that subsequently boiled in the heating means 3 and arrived at the opening 12 of the water raising means 11 is like a steam spring from the opening 12 of the water raising means 11 as shown in FIG. , Blown into the high space portion 13b of the space portion 13 and flowed into the hot water supply means 14 provided below, rebounded the momentum with the inclined hot water supply means 14 and flowed into the hot water supply section 4 and moderately sprinkled by the sprinkling means 9 Water is sprinkled and poured into the coffee powder in the coffee extraction chamber 6. At this time, since the opening 12 is in the inclined portion 17, the hot water 16a boiling in an oblique direction is ejected, so that the cold water 16b and the flowing flow path are surely separated.

Returning to the state of FIG. 2 again, the states of FIG. 2 to FIG. 4 are repeated, but when the water in the water container 2 decreases, the cold water 16b inside the water raising means 11 gradually decreases, and finally all of them. Becomes boiling hot water 16a in the heating means 3, and the coffee extraction is finished. The coffee liquid extracted in this way is stored in the storage container 10.

  As described above, according to the present embodiment, hot water and cold water can be separated with an inexpensive configuration without using a special heating means, and coffee extraction can be performed with high-temperature hot water. A coffee kettle from which coffee can be obtained can be provided.

  As described above, the coffee kettle according to the present invention can separate cold water with an easy configuration, and therefore can be applied to uses such as a device for boiling water with a heating means utilizing similar vapor pressure boiling. .

Sectional drawing of the coffee cooker in Embodiment 1 of this invention Sectional drawing which shows the state at the time of the heating start of the coffee kettle Sectional drawing which shows the state in which hot water is rising by the heating means of the coffee kettle Sectional drawing which shows the state from which the hot water which became hot water with the heating means of the coffee kettle spouts from a water rising means Cross-sectional view of a conventional coffee cooker

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Water container 3 Heating means 4 Hot water supply part 6 Coffee extraction chamber 9 Sprinkling means 10 Storage container 11 Water rising means 12 Opening part 13 Space part 13a Low space part 13b High space part 13c Gap 14 Hot water supply means 15 Drain part 17 Inclination part

Claims (5)

A water container, a heating means for heating water from the water container, a coffee extraction chamber for extracting coffee liquid, a water raising means for guiding hot water obtained by the heating means to the upper part of the main body, and the coffee extraction chamber A hot water supply means for supplying hot water and a storage container for storing the extracted coffee liquid, wherein the opening of the water raising means and the hot water supply means are communicated through a gap. A high space portion is arranged above the periphery of the opening portion of the water raising means, and a low space portion is arranged below, and the high space portion is provided so as to be connected to the hot water supply means, and the low space portion is opened in the water container. The coffee kettle according to claim 1, wherein the coffee kettle is provided so as to communicate with the drainage section. The coffee boiling device according to claim 2, wherein a high space portion is provided in an extending direction of the opening of the water raising means, and a lower portion of the high space portion is provided so as to communicate with the hot water supply means. The coffee boiling device according to any one of claims 1 to 3, wherein an inclined portion is provided at an upper portion of the water raising means, and an opening portion is provided in the inclined portion. The hot water supply means is inclined so that the downstream side is downward, and the coffee boiling device according to any one of claims 2 to 4.

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