JP2002051916A - Coffee maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coffee maker that steams the coffee powder 13 at the beginning of the extraction by the steam blown from the pouring outlet 6 and pours hot water continuously after that and is excellent in extracting condition and enables to obtain tasty coffee. SOLUTION: In the coffee maker, the water from the water tank 3 is heated and the heated hot water is introduced to the pouring outlet 6 and poured on the extractor 7 filled with coffee powder 13 and the coffee is extracted. The hot water supply pipe 9 comprises a water feeding section 9a which is connected with the water tank 3, and a water supply pump 10 is connected with the water feeding section 9a. A water rising section 9b of the water supply pipe that goes upward is connected with the water supply pump 10, and the top end of the water rising section 9b is connected with a water falling section 9c at the position which is higher than the highest water level of the water tank 3. And the top end of the water falling section 9c is connected with a heating section 9d provided with a heater 5, and the top end of the heating section 9d is connected with the above pouring outlet 6 through a hot water supply section 9e.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a household coffee maker which heats water supplied from a water tank into hot water and pours the hot water into an extractor containing coffee powder to extract coffee. It is.

[0002]

2. Description of the Related Art Conventionally, this type of coffee maker has an annular heater attached to a lower surface of a mounting table provided at a lower portion of a machine body, and a hot water supply pipe attached along the annular heater to supply water supplied from a water tank. The heated hot water is transferred to the upper part of the fuselage via a hot water supply section of a hot water supply pipe extending upward, and poured into an extractor containing coffee powder from a discharge port. The container is poured into a container mounted on the mounting table, and is kept warm by the heat of the heater.

[0003]

However, in the above structure, the water initially contained in the water tank flows into the hot water supply pipe, fills the heating section of the hot water supply pipe along the annular heater, and further discharges the water from the outlet. Up to the hot water supply section and is filled with water to the same level as the water surface in the water tank.

In this state, when the heater is energized to heat the heating section of the hot water supply pipe, the water in the heating section is heated and boiled, but the water in the hot water supply section ahead of it is not heated, and It is kept as it is.

[0005] Therefore, when the hot water boiling in the heating portion rises in the hot water supply portion, the cold water filling the hot water supply portion is pushed up and pushed out from the discharge port. Therefore, cold water is discharged from the outlet at the beginning of use of the coffee maker,
The cold water does not only serve to extract the coffee, but also lowers the temperature of the resulting coffee and reduces the quality of the coffee by reducing its concentration.

The present invention has been made in view of such circumstances, and hot water is discharged from a discharge port from the beginning of use, and all the water put in a water tank is used as hot water for coffee extraction, and is hot and thick. It is an object of the present invention to provide a coffee maker capable of obtaining high-quality coffee.

[0007]

According to the present invention, water supplied from a water tank through a hot water supply pipe is heated by a heater attached to the hot water supply pipe, and the heated hot water is heated at the end of the hot water supply pipe. In a coffee maker that pours coffee into an extractor containing coffee powder from a discharge port to extract coffee, the hot water supply pipe is connected to a water supply pump connected to a water supply unit connected to a water tank, and the water supply pump is upwardly connected to the water supply pump. The rising part is connected, the upper end of the rising part is connected to the descending part at a position higher than the highest water level in the water tank, and the tip of the descending part is connected to the heating part attached to the heater, and the heating part The distal end is connected to the discharge port via a hot water supply section extending upward.

[0008] In the present invention, the water supply pump may be operated after a predetermined time has elapsed after the heater is energized, or the heater may be energized so that the temperature of the heating unit is equal to or higher than a predetermined temperature. It is preferred that it be activated after it has risen.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a coffee maker 1 of the present invention. Reference numeral 2 denotes a body of the coffee maker 1, and a water tank 3 is provided at an upper part of the back of the body 2. A mounting table 4 is provided at a lower front portion of the body 2, and an annular heater 5 is attached to a lower surface of the mounting table 4.

A discharge port 6 for discharging hot water is formed in the front upper part of the machine body 2, and an extractor 7 is provided below the discharge port 6. The extractor 7 is provided by hot water discharged from the discharge port 6. Coffee is extracted from the coffee powder in 7 and is poured into a container 8 placed on the table 4 described above.

Reference numeral 9 denotes a hot water supply pipe extending from the water tank 3 to the discharge port 6. In the hot water supply pipe 9, a water supply section 9 a is connected to the bottom of the water tank 3, and a tip of the water supply section 9 a is connected to a water supply pump 10.

The water pump 10 is connected to a rising portion 9b extending upward.
At the upper end of b, an overflow section 11 is provided at a position higher than the highest water level in the water tank 3, and the rising section 9b is lowered through the overflow section 11 to the descending section 9c.
It is connected to the.

Further, the tip of the descending portion 9c is connected to a heating portion 9d provided along the heater 5, and the tip of the heating portion 9d is connected to the discharge port 6 via a hot water supply portion 9e directed upward. It is connected. The descending portion 9c is provided with a check valve 16 that allows only the flow of water from the water tank 3 toward the heating portion 9d and prevents the flow of water in the opposite direction.

A paper filter 12 having an open top is set in the extractor 7, and a coffee powder 13 is stored in the paper filter 12. Hot water discharged from the discharge port 6 is placed on the coffee powder 13. Is to be poured.

An outlet 14 for discharging the coffee extracted from the coffee powder 13 is formed at a lower portion of the extractor 7.
Only when there is a valve 15 is provided which allows the coffee to be discharged from the extractor 7.

[0016]

The operation of the coffee maker 1 of the present invention will be described below with reference to the drawings. First, an appropriate amount of water is poured into the water tank 3, a paper filter 12 is set in the extractor 7, and an appropriate amount of coffee powder 13 is put in the paper filter 12. The container 8 is placed on the placing table 4 below the extractor 7.

At this time, a part of the water injected into the water tank 3 is supplied from the water supply section 9a of the hot water supply pipe 9 to the water supply pump 10a.
, And flows into the rising portion 9b until the height of the water reaches the height of the water surface in the water tank 3. However, overflow part 1
Because 1 is higher than the highest water level in the water tank 3,
Water does not flow into the descending section 9c beyond the overflow section 11, and there is no water in the descending section 9c, the heating section 9d and the hot water supply section 9e of the hot water supply pipe 9.

When the heater 5 is energized in this state, the heating section 9d of the hot water supply pipe 9 attached to the heater 5 is heated. However, since there is no water in the heating section 9d, the heating section 9d is put in an empty cooking state. .

In this state, the heating unit 9d is left for a predetermined time.
After the temperature of the water tank has risen sufficiently, the water pump 10 is operated to send the water in the water tank 3 to the rising part 9b. At this time, instead of leaving the heater 5 energized for a predetermined time, the temperature of the heating unit 9d may be measured, and after the temperature rises to a predetermined temperature or higher, the water pump 10 may be operated.

The water sent by the water pump 10 to the rising section 9b rises in the rising section 9b, overflows in the overflow section 11, flows into the descending section 9c, flows down in the descending section 9c and is heated. Flow into the section 9d. At this time, as described above, the heating unit 9d is heated and is in an empty cooking state. Since a small amount of water flows into the heating unit 9d, the water boils rapidly.

The steam generated thereby is supplied to a hot water supply section 9e.
And heats the pipe wall of the hot water supply unit 9e,
It spouts from the discharge port 6. For this reason, steam is sprayed on the coffee powder 13 prior to boiling water to be steamed.

Further, an appropriate amount of water in the water tank 3 is sequentially sent to the ascending section 9b by the water supply pump 10, overflows in the overflow section 10, and is supplied to the heating section 9d through the descending section 9c. The heating unit 9d is cooled by the cold water sent from the descending unit 9c, and the empty cooking state is eliminated, but the supplied water is heated by the heat of the heater 5 to boil.

The amount of water supplied to the heating unit 9d is controlled by a water supply pump 10, and the amount of water supplied by the water supply pump 10 is set such that the supplied water is constantly boiling in the heating unit 9d by the heat of the heater 5. Should be.

The boiling water rises in the hot water supply section 9e and is discharged from the discharge port 6. The hot water discharged from the discharge port 6 is fed into the heating unit 9d little by little and is sufficiently heated and boiled. Further, since the hot water passes through the hot water supply unit 9e which has been sufficiently heated by the steam, it is sufficient from the beginning. Discharged in a heated state, coffee powder 13
Poured on.

The coffee powder 13 is first steamed by the steam spouted from the discharge port 6, and thereafter sufficiently heated hot water is poured, so that sufficiently hot and strong coffee is extracted. The extracted coffee is filtered by the paper filter 12, discharged from the outlet 14 and injected into the container 8. The coffee in the container 8 is kept warm by the heat of the heater 5 via the mounting table 4.

[0026]

As described above, according to the present invention, water does not enter from before the coffee extraction to beyond the heating unit 9d. The water is fed in at a time, and the fed water is sequentially heated by the heat of the heater 5 and boils.
From the beginning, it is poured into the coffee powder 13 in a sufficiently heated state from the beginning, and a sufficiently hot and thick coffee can be extracted, and a delicious coffee can be obtained.

According to the second and third aspects of the present invention, since the water is supplied after the heating section 9d is sufficiently heated in the empty cooking state, the water is rapidly boiled, and the steam is supplied to the heating section 9d.
In addition to heating the hot water supply section 9e ahead of d, the coffee powder 13 is steamed by steam spouted from the discharge port 6, and more delicious coffee can be extracted by hot water discharged after that.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view showing an example of a coffee maker of the present invention 1 coffee maker 3 water tank 5 heater 6 discharge port 7 extractor 9 hot water supply pipe 9a water supply section 9b ascending section 9c descending section 9d heating section 9e hot water section 10 Water pump 13 Coffee powder

Claims (3)

[Claims] 1. Water supplied from a water tank (3) through a hot water supply pipe (9) is heated by a heater (5) attached to the hot water supply pipe (9), and the heated hot water is supplied to the hot water supply pipe (9). ) From the outlet (6) at the tip of
In a coffee maker for extracting coffee by pouring into an extractor (7) containing 3), said hot water supply pipe (9)
Is connected to a water supply pump (10) to a water supply section (9a) connected to the water tank (3).
0) is connected to an upwardly rising portion (9b), and the upper end of the upwardly rising portion (9b) is connected to the descending portion (9c) at a position higher than the highest water level in the water tank (3). The tip of 9c) is connected to a heating section (9d) attached to the heater (5), and the tip of the heating section (9d) is connected to the discharge port (6) via a hot water supply section (9e) extending upward. Coffee maker, characterized by being connected 2. The coffee maker according to claim 1, wherein the water pump (10) is activated after a predetermined time has elapsed after the heater (5) is energized. 3. The water pump (10) is activated after the heater (5) is energized and the temperature of the heating section (9d) rises to a predetermined temperature or higher. The coffee maker according to claim 1, wherein