JP2000157420A - Coffee maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent difficulty of treatment which is caused by flowing leaves or generating permanent strain of an upper edge of a filter when the filter is put on and taken off by providing a small extraction hole at a bottom of a basket for tea and also providing a large outflow hole at a side wall. SOLUTION: Two small extraction holes 31 are provided at a bottom of a basket 30, furthermore, plural numbers of large outflow holes 33 are provided at a perimeter of an upper position of a side wall 32. A filter is installed in a basket 30, then leaves of tea are received in the basket and tea is extracted by pouring hot water. On the occasion, leaves of tea are soaked in hot water being collected in the filter because the extracting holes 31 are small. Tea is extracted from the extracting holes 31 of the lower part of the basket 30 or the outflow holes 33 of the upper part of the basket 30 through the filter, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee machine.

[0002]

2. Description of the Related Art A coffee boiler is provided with a circulation channel for guiding water from a water tank to a hot water outlet, a heater is wound in the middle of the circulation channel, and the water in the water tank is heated by the heater. And is discharged from the hot water outlet. A check valve for preventing the flow of water from the heating unit to the water tank is provided at a position between the water tank and the heating unit provided with the heater in the circulation flow path.

Recently, a high-power heater (650 W to 850 W) has been used as a heater of a heating unit, so that hot water can be discharged from a tapping unit in a short time, thereby increasing the speed of coffee making.

[0004]

In some cases, a tea basket is used in place of a coffee filter case used in a coffee machine. A filter is installed in this basket, and after the leaves of the black tea are put in, hot water is poured to extract the black tea. At that time, there was a problem that the black tea overflowed the upper edge of the filter, and the leaves flowed out, and the upper edge of the filter became depressed, making handling during removal difficult.

[0005] It is an object of the present invention to provide a coffee stove that solves the above-mentioned problems.

[0006]

According to the first aspect of the present invention, there is provided a water tank, a flow path for guiding water from the water tank to a tapping portion, and a flow path provided in the middle of the flow path. A heating unit for heating the water, and a coffee boiler including a filter case into which hot water is poured from the tapping unit, a basket for black tea, the basket is provided with a small extraction hole at the bottom, A large outflow hole is provided on the side wall.

[0007] According to the above configuration, since the extraction hole is small, hot water is accumulated in the filter, and black tea leaves are immersed therein. Then, the black tea is extracted from the lower extraction hole through the filter and from the upper outflow hole.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the overall configuration of a coffee brewer according to the present invention, and FIG. 2 shows the circuit configuration.

Reference numeral 1 denotes a water tank, which is provided with a circulation channel 5 for guiding water from the water tank 1 to the tapping section 3, and a heating section 6 is provided in the circulation channel 5. In the heating unit 6, a high-power (800 W) heater 9 is wound around the circulation channel 5 to heat water in the circulation channel 5. Further, the upper surface of the heating unit 6 becomes a heating surface, and the cup 7 is placed thereon.

At a position between the water tank 1 and the heating section 6 in the circulation flow path 5, a check valve 10 for preventing a back flow of water from the heating section 6 to the water tank 1 is provided.

The circulation channel 5 is made of a metal pipe, and the check valve 10 is made of resin. That is, the check valve 10 is configured by incorporating a valve in a resin pipe, and is used to connect a metal pipe.

12 is a coffee mill, 13 is a mill motor,
Reference numeral 14 denotes a switch unit, and 15 denotes a filter case.

Next, the characteristic structure of the present invention will be described.

A water pipe thermostat 20 as a detecting unit for detecting the temperature of water on the water tank 1 side is attached to a metal pipe portion from the water tank 1 to the check valve 10 in the circulation flow path 5. The water tube thermostat 20 is electrically connected in series to the heater 9, and further connected to a half-wave rectifier diode 21 as an output switching unit in series with the heater 9 and in parallel with the water tube thermostat 20. Is provided.

With the above-described configuration, first, when water is put into the water tank 1 and the water pipe thermostat 20 does not operate to maintain the conductive state as shown in FIG. The heating operation is performed at 850 W.
As a result, compared to a heater using a 650 W heater,
Water is heated in a short time to speed up the coffee maker.

On the other hand, when hot water is poured into the water tank 1 and the thermostat 20 for the water pipe is operated and becomes non-conductive, the current is half-wave rectified in the diode 21 for half-wave rectification, and the heater 9 has half the power. The heating operation is performed at 425W. Thereby, even when hot water is supplied, the heating unit 6
No boiling occurs in the circulation flow path 5, and therefore, no pressure is applied to the check valve 10 from the heating unit 6 side. As a result, the heating circulation operation of the water in the circulation flow path 5 is performed without any trouble. Also in this case, the use of hot water speeds up the coffee maker.

The water pipe thermostat 20 is provided on the upstream side of the check valve 10 made of resin, so that the heating section 6
Is shut off at the check valve 10 portion, thereby performing a stable operation without being affected by the heat. Although the water tank 1 is usually made of resin and its temperature is hard to detect from its outer surface, the water temperature can be easily and accurately detected by providing the water pipe thermostat 20 on the metal pipe portion.

FIGS. 3, 4 and 5 show a basket 30 for tea used in the coffee machine, which is used in place of the filter case 15 described above.

Two small extraction holes 31 are provided at the bottom of the basket 30, and a plurality of large outflow holes 33 are provided at the upper portion of the side wall 32 over the entire circumference.

Then, a filter is mounted in the basket 30 so that the upper edge thereof is at the position indicated by A, and after the leaves of the black tea have been stored, hot water is poured to extract the black tea.
At this time, since the extraction hole 31 is small, hot water is accumulated in the filter, and black tea leaves are immersed therein.
Then, black tea is extracted from the lower extraction hole 31 and the upper outflow hole 33 through the filter.

If there is no outflow hole 33, there is a problem that black tea overflows at the upper edge of the filter and leaves flow out, and the upper edge of the filter is depressed, making it difficult to handle at the time of removal. But outflow hole 3
The provision of 3 eliminates all such problems.

[0022]

According to the present invention, since the extraction hole is small, hot water is accumulated in the filter, and black tea leaves are immersed therein. Then, the black tea is extracted from the lower extraction hole through the filter and from the upper outflow hole.

In the case where there is no outflow hole, there is a problem that black tea overflows the upper edge of the filter and leaves flow out, and that the upper edge of the filter is depressed and handling during removal becomes difficult. By providing the outflow holes, all such problems can be solved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment including a cut-away cross-sectional configuration of a coffee machine.

FIG. 2 is a circuit configuration diagram of an embodiment of a coffee kettle;

FIG. 3 is a front view of a tea basket.

FIG. 4 is a plan view of a tea basket.

FIG. 5 is a cross-sectional view of a tea basket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water tank 3 Hot water supply part 5 Circulation flow path 6 Heating part 10 Check valve 20 Thermostat for water pipe (detection part) 21 Diode for half-wave rectification (output switching part)

Claims (1)

[Claims] 1. A water tank, a flow path for guiding water from the water tank to a tapping section, a heating section provided in the middle of the flow path to heat water in the flow path, and hot water from the tapping section. A coffee kettle comprising a pourable filter case and having a basket for tea, with a small extraction hole at the bottom and a large outflow hole on the side wall. Characterized coffee boiler.