JP2604448B2 - Coffee extractor - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a coffee extractor for extracting coffee with water.

2. Description of the Related Art Conventionally, a coffee extractor shown in FIG. 3 has been known as a coffee extractor for extracting coffee with water. In FIG. 3, 1 is a container for storing water, 2 is a cock for adjusting the dripping speed of water, 3 is an extraction container for storing coffee powder and extracting coffee, and 4 is a receiver for storing the extracted coffee.

According to the above configuration, water is stored in the container 1, the dropping speed of the water is adjusted by the cock 2, the water in the container 1 is poured into the coffee powder in the extraction container 3, and the coffee extracted from the coffee powder in the extraction container 3 is removed. This is received and stored in the receiver 4.

PROBLEM TO BE SOLVED BY THE INVENTION The above-mentioned conventional water-based extraction apparatus is extremely superior in taste and aroma of the coffee liquid as compared with a generally-used hot water-based extraction apparatus. Moreover, even if stored, the quality deterioration is extremely small. On the other hand, there is a problem that the extraction time is extremely long in order to obtain the required concentration of coffee, and it usually requires 3 hours or more depending on the amount of coffee to be extracted, and it is difficult to use it easily on a daily basis.

The present invention solves the above-mentioned conventional problems. Coffee can be extracted in a short time as long as it is extracted with boiling water, and has the same taste and aroma of a coffee solution as when extracted with water. It is an object of the present invention to provide a coffee extractor capable of obtaining the following.

Means for Solving the Problems In order to solve the above problems, a coffee extractor of the present invention comprises:
An extraction chamber for storing coffee powder and extracting coffee; a receiver for receiving and storing the coffee obtained from the extraction chamber; a first water container for storing water; A second water container having the same inlet as the container and arranged in parallel with the first water container and storing a small amount of water; a heater for heating water in the second water container; and the heater To cause the heated water in the second water container to flow down into the extraction chamber,
After the coffee powder in the extraction chamber is uneven, further comprising control means for controlling the water in the first water container to flow down into the extraction chamber to obtain coffee in the receiver; And water overflowing from the second water container is accumulated in the first water container.

Further, the coffee extractor of the present invention comprises an extraction chamber for storing coffee powder and extracting coffee, a receiver for receiving and storing the coffee obtained from the extraction chamber, and a first for storing water. Water container, a second water container for storing a small amount of water, a heater for heating the water in the second water container, a timed device driven by a timer motor, and a timed operation of the timed device. And the first and second valves for opening and closing the outlets of the first and second water containers, and the water temperature of the second water container is detected, and the water temperature reaches a predetermined temperature. Sometimes having a thermostat to drive the timer motor, heating the heater, and opening the first and second valves sequentially with the cam to extract the heated water in the second water container After flowing down into the room to make the coffee powder in the extraction room uneven Further the water in the first water vessel caused to flow down into the extraction chamber, in which a control means for controlling so as to obtain a coffee into the receptacle.

According to the above configuration, water is injected from the same injection port of the first and second water containers arranged in parallel with each other, the second water container is filled with a small amount of water, and then filled with water. Water overflows from the first water container, and the first
And water is stored in the second water container, and coffee powder is stored in the extraction chamber. Next, the heater of the second water container is heated by the control means, wherein the thermostat detects the water temperature of the second water container when the water in the second water container reaches a predetermined temperature, and uses the temperature for the timer. The motor is driven, and the outlet of the second water container is opened via a valve by a cam that rotates with the timed operation of the timed device driven by the timer motor to heat the second water container. After the water is allowed to flow down into the extraction chamber and the coffee powder in the extraction chamber is made uneven, the outlet of the first water container is further opened by a cam through a valve, and the water in the first water container is transferred to the extraction chamber. The coffee is extracted by flowing down, and the extracted coffee is received by a receptor to obtain coffee. In this way, a coffee can be made inexpensively with a simple control mechanism.
For example, in the case of about 5 cups of coffee, in a short time of about 3 to 4 minutes, a coffee with a taste, richness and aroma of almost the same quality as the coffee extracted with conventional water can be obtained. Since the powder is peeled, there is no deterioration of the coffee liquid.

Embodiment Hereinafter, an embodiment 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 one embodiment of the present invention. First
In FIG. 2 and FIG. 2, reference numeral 11 denotes a first water container which stores water and has an outlet 12 on the bottom surface. 13
Is a second water container juxtaposed to the first water container 11, and has a small water capacity enough to uniformly wet the coffee powder 15 stored in the extraction chamber 14, and has a water outside. Heater to heat
16, a thermostat 17 which is normally open and closes when the water temperature reaches an appropriate temperature, and an outlet 18 below. First
When the time switch 19 is in the "OFF" state, the outlets 12 and 18 of the second water containers 11 and 13 are closed via the valves 21 and 22 by the cam 20 which rotates in association with the timed operation. In state. When the outlets 12 and 18 are open, they are related to a hopper 24 in which coffee beans are stored via a discharge port 23. This hopper
The bottom of 24 is driven by a motor 25, is provided with a rotating blade-like cutter 26, and communicates with a mill 28 having a perforated plate 27 for discharging ground coffee powder to the extraction chamber 14 on the bottom surface. ing. Reference numeral 29 denotes a lid for preventing the ground coffee powder from overflowing the extraction chamber 14 and scattering. Numeral 30 denotes a receiver for receiving and storing the extracted coffee solution obtained from the extraction chamber 14. Numeral 31 denotes a heater, which heats the extracted coffee liquid via a heat conducting plate 32 and keeps the temperature at a predetermined temperature.
Reference numeral 33 denotes a thermostat that controls the heater 31 to maintain the temperature of the coffee liquid at an appropriate temperature. The heater 31 can be arbitrarily energized by a switch 34. The time switch 19 includes a timer motor 35 for timed operation, a mill 28, and a motor circuit switch 36. 37 is the first water container 11
An inlet 38 communicating with the first and second water containers 11 and 13 is formed above the second water container 13.

The operation of the above configuration will be described below. First,
When a required amount of water according to the amount of coffee beans is poured from the inlet 38 of the lid 37 as a reference for extraction, first, the second water container 13
Becomes full, overflows, and the remaining water flows into the first water container 11 and accumulates. Next, after the required amount of coffee beans is put into the hopper 24, the time switch 19 is set to a time limit corresponding to the amount of coffee beans. At this time, the contact a of the switch 36 is closed, the motor 25 is driven, and the mill 28 operates. Eventually, when the coffee beans have been replaced and the prescribed timed operation has been completed,
The contact a of the switch 36 is opened and the contact b is closed, so that the motor 16 of the second water container 13 is energized. When the water temperature in the second water container 13 reaches a predetermined temperature, the thermostat 17 closes. When the thermostat 17 is closed, the timer motor 35 driving the timed operation of the time switch 19 starts operating again, and
25 is driven and the mill 28 starts operating again. Immediately after the operation of the time switch 19 starts, the cam 20
, The outlet 18 of the second water container 13 is opened to supply heated water into the mill 28. At this time, the heated water cleans the adhesion of the coffee powder in the mill 28 by the centrifugal force of the cutter 26, and also sprays the heated water uniformly on the coffee powder 15 deposited in the extraction chamber 14. Here, even if the heated water in the second water container 13 has been drained, the timed operation of the time switch 19 continues and the extraction chamber
After sufficiently dispersing the coffee powder 15 in 14, the cam 20 opens the outlet 12 of the first water container 11 via the valve 22, and the time operation of the time switch 19 ends. Then, the water in the first water container 11 is supplied to the extraction chamber 14 via the mill 28. At this time,
The firm and firm fiber of the coffee powder is fully swelled and the soluble solids of the coffee are in a state where it can be easily eluted. Can be. Thus, the quality of the extracted coffee liquor is very close to the quality of the coffee liquor extracted with conventional equipment, for example with water. That is, the quality of the coffee liquid is deteriorated in proportion to the temperature and the extraction time, and in the case of the extraction device of the present invention, first, a small amount of heated water, that is, a small amount of heat is supplied to the coffee powder 15, and thereafter, ,
Moreover, since the temperature of the coffee powder in the extraction chamber 14 is rapidly lowered with water immediately, it is considered that the chemical reaction occurring in the coffee liquid is extremely difficult to proceed. Further, since the coffee liquid is hardly heated, the quality does not deteriorate even if it is left for several days.

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

Also, just by setting the flow path diameters of the outlets 12 and 18 appropriately in advance, the coffee extraction time can be set, and parts such as the pump and its control are unnecessary, which is highly reliable.
Coffee can be manufactured at low cost.

Advantageous Effects of the Invention As described above, according to the present invention, by peeling the coffee powder with a small amount of boiling water, it is possible to obtain a deep rich coffee with an increased concentration of soluble solids, and in a very short time, and Without changing the flavor of the coffee, it is possible to obtain a coffee liquid having almost the same quality of taste, aroma and turbidity as the coffee liquid extracted with water. In addition, since the same water inlet is used in the water supply operation, an erroneous operation of forgetting to supply water to one of the water containers can be prevented and the use can be facilitated. Further, the control mechanism is extremely simple, and the coffee can be manufactured with high reliability and at low cost.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a configuration of a coffee extractor according to one embodiment of the present invention, FIG. 2 is a control circuit diagram of the coffee extractor, FIG.
The figure is a longitudinal sectional view showing the configuration of a conventional coffee extractor. 11 ... first water container, 13 ... second water container, 14 ... extraction chamber, 15 ... coffee powder, 16 ... heater, 17 ... thermostat, 19 ... time switch, 20 ... cam , 21,22 ……
Valve, 30 ... Receptor, 35 ... Timer motor, 36 ... Switch, 38 ... Inlet.

Claims (2)

(57) [Claims] 1. An extraction chamber for storing coffee powder and extracting coffee, a receiver for receiving and storing the coffee obtained from the extraction chamber, a first water container for storing water, A second water container having the same inlet as the first water container and arranged in parallel with the first water container and containing a small amount of water; and heating water in the second water container. A heater, heating the heater to cause the heated water in the second water container to flow down into the extraction chamber, and to disperse the coffee powder in the extraction chamber;
Control means for causing water in the first water container to flow down into the extraction chamber so as to obtain coffee in the receiver, wherein the second water is injected into the second water container, A coffee extractor configured such that water overflowing from a container accumulates in said first water container. 2. An extraction chamber for storing coffee powder and extracting coffee, a receiver for receiving and storing the coffee obtained from the extraction chamber, a first water container for storing water, A second water container that stores a small amount of water, a heater that heats the water in the second water container, a timer that is driven by a timer motor, and a cam that rotates with the limiting operation of the timer. A first and a second valve for opening and closing the outlets of the first and second water containers, and detecting a water temperature of the second water container, and detecting the temperature of the water when the water temperature reaches a predetermined temperature; A thermostat for driving a motor, for heating the heater, and the first and second thermostats by the cam;
Are sequentially opened, the heated water in the second water container is caused to flow down into the extraction chamber, the coffee powder in the extraction chamber is made uneven, and then the water in the first water container is flowed down into the extraction chamber. And a control means for controlling so as to obtain coffee in the receiver.