JPH05207936A - Coffee extracting device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Coffee extraction that can brew coffee beans by a simple method without the need for an energization controller, solenoid or timer when extracting coffee. The purpose is to provide a device. [Composition] A sealed tank 37 having a check valve 35 and a U-shaped pipe 36 for pouring hot water on coffee beans is arranged at the tip of a hot water supply pipe, and steam of hot water supplied into the sealed tank 37. By adjusting the pressure in the tank by the pressure, intermittent extraction of coffee beans becomes possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee brewing device having a steaming function.

[0002]

2. Description of the Related Art Several coffee extractors having a brewing mechanism have hitherto been devised.

These examples will be described below with reference to the drawings. In the coffee extraction device including the water tank 10, the water heating mechanism 11 and the hot water supply pipe 12 as shown in FIG. 2, the water sent from the water tank 10 is the water heating mechanism 1
It is heated in 1 and rises in the hot water supply pipe 12, and coffee beans 4
It falls on top of 5.

As a steaming method, after a certain amount of hot water necessary for steaming the coffee beans 45 is discharged, the electric power to the water heating mechanism 11 is temporarily cut off so that the hot water in the hot water supply pipe 12 does not rise. There is a method of steaming the coffee beans 45 for a while and then energizing the boiling water mechanism 11 again to return to the normal coffee extraction state. Incidentally, the water heating mechanism 1
Turning on and off the power to 1 is based on the operation of a microcomputer or a timer (not shown).

As another example, as shown in FIG. 3, a coffee brewing device equipped with a water tank 13, a water heating mechanism 14 and a hot water supply pipe 15 is provided with a timer (not shown) or a water channel switching solenoid (not shown). Driven valve 16
There are some that are provided.

This is similar to the above-mentioned example, coffee beans 4
After a certain amount of hot water required to steam 5 is discharged, the valve 16 is switched by a timer or a water passage switching solenoid to return the hot water to the water supply tank 13 for a certain time, during which coffee beans 45 are steamed again. In this method, the valve 16 is switched back to the normal extraction state by a timer or a water channel switching solenoid.

As yet another example, as shown in FIG. 4, a coffee extracting device including a water tank 17, a water heating mechanism 18, a hot water supply pipe 19 and the like is further provided with a sub tank 20, and the sub tank 20 has a U shape. Some have the pipe 21 installed therein.

In the coffee brewing apparatus having the above-mentioned structure, the hot water heated by the water boiling mechanism 18 rises in the hot water supply pipe 19 and is stored in the sub tank 20. When the water level reaches the top of the U-shaped pipe 21, hot water is poured onto the coffee beans 45, but until the water level next reaches the U-shaped pipe 21, the hot water is not discharged from the sub tank 20. There is also a method of steaming the coffee beans 45 by utilizing the fact that the action of the U-shaped tube 21 causes the hot water from the sub-tank 20 to be intermittent.

[0009]

However, in the conventional coffee brewing apparatus mentioned first, the electricity to the water heating mechanism 11 is turned off.
There is a problem that a timer or a microcomputer control for turning off and on is required, and the apparatus becomes complicated.

There is also a problem that it takes a considerable time from turning off the power to the water heating mechanism 11 to stopping the hot water and from turning on the power to release the hot water.

The second conventional coffee brewing device requires a solenoid valve or a timer as a power source for operating the switching valve 16 of the water channel and the switching valve 16, so that the structure becomes complicated. There was a problem that it would be expensive.

In the last-mentioned conventional coffee brewing apparatus, when the water level does not reach above the U-shaped tube 21 in the sub tank 20 at the end, the hot water remains in the sub tank 20 without being discharged. was there.

The present invention has been devised in view of the above problems, and has a mechanism that does not require a complicated device, can inexpensively and easily steam coffee beans, and does not leave hot water at the end. It is an object of the present invention to provide a coffee bean extracting device provided with the coffee bean extracting device.

[0014]

In order to achieve the above object, a coffee brewing apparatus according to the present invention is a coffee brewing apparatus equipped with a water tank, a water heating mechanism, a hot water supply pipe, and the like. It is characterized in that a closed tank equipped with a U-tube for pouring hot water on the stop valve and coffee beans is arranged.

[0015]

According to the above construction, the check valve does not work and the hermetically sealed tank is not sealed for a while after the heater is energized because the hot water that is heated and comes out is weak. In this state, the hot water is intermittently discharged by the usual U-shaped tube effect, and the coffee beans are steamed.

After a certain amount of time has passed after the power is turned on, the heater is sufficiently heated, and the power of the hot water supplied into the sealed tank becomes strong. When the check valve operates due to this vapor pressure and the inside of the sealed tank is sealed, the U-shaped tube effect disappears, and the hot water supplied into the sealed tank passes through the U-shaped tube as it is and coffee beans Is poured into. Moreover, since hot water is discharged by high vapor pressure, no hot water remains in the closed tank.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the coffee brewing apparatus according to the present embodiment has a main body portion 33 composed of a water tank 30, a boiling water mechanism 31, and a hot water supply pipe 32, and the hot water supply pipe 3
A sealed tank 37 having a check valve 35 and a U-shaped pipe 36 is provided at the tip 34 of the second tank 34.

A heater 39 is incorporated in the water heating mechanism 31, and is involved in heating and heat retention of the hot water supply pipe 32 and the coffee server 38.

The water poured into the water tank 30 is heated by the heater 39 and supplied to the sealed tank 37 through the hot water supply pipe 32.

Since the heater 39 is not yet sufficiently heated for a while after the start of operation, the momentum of the hot water supplied to the sealed tank 37, that is, the vapor pressure is weak.

In this state, the check valve 35 provided in the hermetically sealed tank 37 is in a lowered state, that is, in an open state, the pressure in the hermetically sealed tank 37 does not rise, and the hermetically sealed tank 37 is closed. When the water level reaches the top of the U-shaped pipe 36, the hot water supplied to the inside passes through the U-shaped pipe 36 and is poured all at once on the coffee beans until the hot water in the sealed tank 37 runs out. No hot water is poured into the coffee beans until the top of the U-tube is reached. Therefore, the coffee beans are steamed while the hot water supply to the coffee beans is interrupted.

While the above-mentioned cycle is repeated, the intermittent hot water discharge is performed for a while.

After a certain amount of time has passed after the start of operation, the heater 39 is sufficiently heated, so that the momentum of the hot water supplied to the sealed tank 37 through the hot water supply pipe 32, that is, the steam pressure becomes strong. Since the hot water comes out with a strong force along with the steam, the pressure causes the check valve 35.
The sealed tank 37 is pushed up and is closed except for the discharge port 40 by the U-shaped pipe 36.

In this state, the hot water supplied from the hot water supply pipe 32 into the closed type tank 37 is not accumulated in the closed type tank 37 because the pressure in the closed type tank 37 is high, and the U-shaped pipe 36 is provided. As you can see, the hot water is poured on the coffee beans all at once.

Further, as shown in FIG.
If a recess 41 is formed at the bottom of the
Hot water does not remain in the sealed tank 37 after the operation is completed.

According to the coffee brewing apparatus having the above-mentioned structure, coffee is extracted while steaming coffee beans by a simple method without requiring a power source such as an ON / OFF control mechanism for energizing the heater or a solenoid. You can

[0028]

As is apparent from the above description, in the coffee brewing apparatus according to the present invention, a closed type having a check valve and a U-shaped pipe for pouring hot water into coffee beans is provided at the tip of the hot water supply pipe. With a simple device such as a tank, coffee beans can be poured intermittently without the need for a power source such as a heater power ON / OFF control mechanism, a solenoid, or a timer, which has been required in the past. It is possible to extract coffee while steaming coffee beans.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a coffee extraction device according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a conventional coffee extraction device.

FIG. 3 is a sectional view showing another embodiment of a conventional coffee brewing device.

FIG. 4 is a sectional view showing still another embodiment of the conventional coffee brewing apparatus.

[Explanation of symbols]

 30 Water Tank 31 Water Heater Mechanism 32 Hot Water Supply Pipe 34 Tip 35 Check Valve 36 U-Shaped Tube 37 Sealed Tank

Claims (1)

[Claims] 1. A coffee brewing apparatus equipped with a water tank, a water heating mechanism, a hot water supply pipe, etc., wherein a closed tank having a check valve at the tip of the hot water supply pipe and a U-shaped pipe for pouring hot water onto coffee beans is provided. A coffee brewing device characterized by being provided.