JPH02147026A - Coffee extracter - Google Patents

Abstract

PURPOSE:To automatically obtain coffee from coffee beans in a short time by causing heated water to flow down to an extracting room when the water in a second water container reaches a prescribed temperature, simultaneously operating the cutter of an electric mill for a fixed time and further causing the water in a first water container to flow down to the extracting room. CONSTITUTION:In a cover 37 of a first water container 11, a recessed part 38 is formed so that the water can be poured from the upper direction of a second water container 13. When the water to correspond to the quantity of the coffee beans is poured into this recessed part 38, the water container 13 is filled with the water. Then, the water flows over and the remaining water flows into the water container 11. Next, after the coffee beans are put into a hopper 24, when a time switch 19 is set to a time limit, a mill 28 is operated. When the coffee beans are finished being milled and prescribed time limit operation is finished, electrification is started to a heater 16 of the water container 13. When the temperature of the water container 13 reaches the prescribed temperature, a motor 35 for timer starts again operation and the mill 28 also starts again operation. Then, the heated water is immediately supplied into the mill 28 and uniformly sprayed to coffee powder 15 in an extracting room 14. After the coffee power is enough steamed, the water in the water container 11 is supplied to the extracting room 14. As a result, the coffee can be automatically obtained from the coffee beans in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a coffee extractor for extracting coffee with water.

Conventional technology Conventionally, the third type of coffee extractor that extracts coffee using water
The coffee brewer shown in the figure is known.

In FIG. 3, 1 is a container that stores water, 2 is a cock that adjusts the speed of water dripping, 3 is an extraction container that stores coffee powder and extracts coffee, and 4 is a receiver that stores the extracted coffee.

With the above configuration, water is stored in the container 1, the water in the container 1 is poured into the coffee powder in the extraction container 3 by adjusting the dripping speed of the water from the cock 2, and the coffee extracted from the coffee powder in the extraction container 3 is extracted. This is received and stored in receptor 4.

Problems to be Solved by the Invention The above-mentioned conventional water extraction device is extremely superior in terms of taste and aroma of coffee liquid compared to the generally widespread extraction device using boiling water. Moreover, there is very little quality deterioration even when stored, but on the other hand, the extraction time is extremely long to obtain the required coffee concentration, which usually requires more than 3 hours depending on the amount of coffee extracted, so it is easy to use on a daily basis. The problem was that it was difficult to use.

The present invention solves the above-mentioned conventional problems, and allows coffee to be extracted in a short time comparable to extraction with boiling water, and has the same quality of coffee liquid taste, aroma, etc. as when coffee is extracted with water. Moreover, it is an object of the present invention to provide a coffee extractor which can automatically obtain coffee from coffee beans and can also clean the mill automatically.

Means for Solving the Problems In order to solve the above problems, the coffee extractor of the present invention has an extraction chamber for storing coffee powder and extracting coffee, and a blade cutter disposed above the extraction chamber. electric mill and
a receiver that receives and stores the coffee obtained from the brewing chamber; first and second water containers that store water; a heater that heats the water in the second water container; After operating the mill for a time corresponding to the amount of coffee beans, the heater is energized to heat the water in the second water container, and the water in the second water container is heated.
When the water in the second water container reaches a predetermined temperature, the heated water in the second water container is caused to flow down into the extraction chamber via the electric mill, and at the same time, the cutter of the electric mill is operated for a certain period of time, and and a control means for controlling water in the first water container to flow down into the brewing chamber to obtain coffee in the receiver.

Effect With the above configuration, water is first stored in the first and second water containers, coffee beans are put into the electric mill, and then,
The control means operates the electric mill for a period of time corresponding to the amount of coffee beans to produce coffee powder, which is stored in the brewing chamber, and then energizes the heater to heat the water in the second water container to produce coffee powder.
When the water in the second water container reaches a predetermined temperature, the heated water in the second water container is allowed to flow down into the extraction chamber through the electric mill, and at the same time the cutter of the electric mill is operated for a certain period of time. After cleaning the adhesion of coffee powder with heated water and evenly spraying heated water on the coffee powder in the extraction chamber, the coffee powder is sufficiently smeared with hot water to facilitate the elution of the soluble solid content of the coffee powder. Water in the first water container is allowed to flow down into the brewing chamber to extract coffee, and the extracted coffee is received in a receiver to obtain coffee. In this way, coffee can be obtained automatically from coffee beans, and the mill can also be cleaned automatically.
For example, for about 5 cups of coffee, you can get coffee with almost the same quality, richness, and aroma as conventional coffee extracted with water in a short time of 3 to 4 minutes, and there is also no deterioration of the coffee liquid. do not have.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

1 and 2 are a longitudinal sectional view and a control circuit diagram showing the configuration of a coffee extractor according to an embodiment of the present invention. In FIGS. 1 and 2, 11 is a first water container that stores water and has an outlet 12 on the bottom.

13 is a second water container, which has enough water capacity to uniformly wet the coffee powder 15 stored in the brewing chamber 14, and has a heater 16 for heating water on the outside, which is normally open. It is equipped with a thermostat 17 that closes when the water temperature reaches an appropriate temperature, and an outlet 18 at the bottom. The outlet 12.18 of the first and second water containers 11.13 is opened via a valve 21.22 by a cam 20 rotating in conjunction with its timed operation when the time switch 19 is in the "off" state. It is in a state of blockage.

When the outlet 12.18 is open, it communicates via the outlet 23 with a hopper 24 in which coffee beans are stored. The bottom of this hopper 24 is driven by a motor 25 and is provided with a rotating blade-shaped cutter 26, and a perforated plate 27 on the bottom for discharging the ground coffee powder into the extraction chamber 14.
It communicates with a mill 28 equipped with a Reference numeral 29 is a lid for preventing crushed coffee powder from overflowing from the extraction chamber 14 and scattering. A receiver 30 receives and stores the extracted coffee liquid obtained from the brewing chamber 14. 31. Overnight, the extracted coffee liquid is heated via a heat conduction plate 32 and kept at a predetermined temperature. 33 is a thermostat that controls the heater 31 in order to maintain the coffee liquid at an appropriate temperature.

Further, this heater 31 can be energized arbitrarily by a switch 34. The time switch 19 includes a timer motor 35 for timed operation, a mill 28, and a switch 36 for switching the heater circuit. 37 is a lid of the first water container 11, and a recess 38 is formed so that water can be poured from above the second water container 13.

The operation of the above configuration will be explained below.

First, in preparation for extracting coffee, pour the required amount of water into the recess 38 of the lid 37 according to the amount of coffee beans.
When the second water container 13 becomes full, it overflows and the remaining water flows into the first water container 11.Next, after putting the required amount of coffee beans into the hopper 24, the time switch 19 is turned off. Set the time according to the amount of beans. At this time, the a contact of the switch 36 is closed, the motor 25 is driven, and the mill 28 is operated. Eventually, when the coffee beans are finished grinding and the predetermined timed operation is completed, the a contact of the switch 36 is opened and the b contact is closed, and energization to the heater 16 of the second water container 13 is started. When the water temperature in this second water container 13 reaches a predetermined temperature, the thermostat 17 closes. When the thermostat 17 closes, the timer motor 35, which is driving the timed operation of one time switch, starts operating again, and the motor 25 is driven, and the mill 28 also starts operating again. Immediately after the time switch 19 starts operating, the cam 20 opens the outlet 18 of the second water container 13 via the valve 21, and heated water is supplied into the mill 28. At this time, the heated water is
The centrifugal force of 6 cleans the adhesion of coffee starch inside the mill 28, and the heated water is evenly sprayed onto the coffee powder 15 deposited in the extraction chamber 14. Here, even after all the heated water in the second water container 13 has been drained, the timed operation of the time switch 19 continues, and after the coffee powder 15 in the brewing chamber 14 has been sufficiently dispersed, the cam 20 opens the valve. First water container 1 via 22
The outlet 12 of No. 1 is opened, and the timed operation of the time switch 19 is completed.

The water in the first water container 11 is then supplied to the extraction chamber 14 via the mill 28. At this time, the hard and tight fibers of coffee powder are sufficiently swollen, and the soluble solids of coffee are easily eluted. You can finish the extraction. In this way, the quality of the extracted coffee liquor is very similar to the quality of coffee liquor extracted with conventional equipment, for example with water. That is, the quality of coffee liquid deteriorates in proportion to the temperature and extraction time, and with the extraction device of the present invention, a small amount of heated water, that is, a small amount of heat, is first supplied to the coffee powder 15, and then , in order to quickly lower the temperature of the coffee powder in the brewing chamber 14 with water,
This is thought to be due to the fact that the chemical reactions that occur in the coffee liquid are extremely slow to proceed. Furthermore, since the coffee liquid is hardly heated, the quality will not deteriorate even if it is left for several days.

In addition, when drinking the finished coffee hot, the coffee receiver 30 containing the coffee is placed on the heat conduction plate 32 and the switch 34 is closed. The coffee is heated by the heater 31 and kept at an appropriate temperature by the thermostat 33.

Further, the coffee extraction time can be set by simply setting the diameter of the outlet 12, 18 appropriately in advance, and components such as a pump and its control are not required, making it possible to produce coffee with high reliability and at low cost.

Effects of the Invention As described above, according to the present invention, when hot water is supplied, the cutter rotates to uniformly spray the hot water onto the coffee powder to disperse the coffee powder, thereby facilitating the elution of soluble solids from the coffee powder. For example, for about 5 cups of coffee, it is possible to automatically obtain coffee of sufficient concentration from coffee beans in a short period of about 3 to 4 minutes with good taste, richness, and aroma without deterioration. Coffee powder adhering to the inside of the mill can also be automatically cleaned, making it unnecessary to maintain the electric mill.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing the configuration of a coffee extractor according to an embodiment of the present invention, FIG. 2 is a control circuit diagram of the same coffee extractor, and FIG.
The figure is a longitudinal sectional view showing the configuration of a conventional coffee extractor. 11...first water container, 13...second water container, 1
4...Extraction chamber, 15...Coffee powder, 16...Heater, 17...Thermostat, 19...Time switch, 25...Motor, 26...Cutter, 28...
...Mil, 30...-Receptor, 35...Timer motor, 36...Switch. //-One bag Yone/, 3-$2 Q4 /4-Catch t 2-0, Morph 26- 〃Tour yl--Miru〆2 7A Musui 1st

Claims (1)

[Claims] 1. An extraction chamber that stores coffee powder and extracts coffee, an electric mill that is disposed above the extraction chamber and has a blade cutter, and that receives and stores the coffee obtained from the extraction chamber. a receiver, first and second water containers that store water, a heater that heats the water in the second water container, and after operating the electric mill for a time corresponding to the amount of coffee beans, the heater to heat the water in the second water container, and when the water in the second water container reaches a predetermined temperature, the heated water in the second water container is heated through the electric mill. control means for controlling the cutter of the electric mill for a certain period of time at the same time as the water flows down into the brewing chamber, and further controls the water in the first water container to flow down into the brewing chamber to obtain coffee in the receiver; Coffee extractor with.