JPH05197878A - Beverage extracting device - Google Patents

Abstract

PURPOSE:To provide the beverage extracting device which can prevent the temperature of liquid from decreasing in the process of beverage extraction and can transmit high-quality beverage to a cup in a high-temperature state suitable for vending. CONSTITUTION:This device is provided with a cylinder 10 equipped with an inserting part 10a for raw materials and hot water at the upper part, filter block 11 combined to the lower part of the cylinder 10, and valve mechanism 12 to close the upper opening plane of the cylinder 10. In respect to a brewer 1 to extract the beverage by pressurizing the raw materials and hot water put into the cylinder and to transmit the beverage through the clinder block 11, a case 17 housing the main parts of the beverage extracting device including the cylinder 10, heater 18 and fan 19 are provided as a cylinder heating means to keep the cylinder 10 in the high-temperature state when extracting the beverage. Hot air if blown through the heater 18 and the fan 19 into the case 17, the brewer 1 is held in the high-temperature state while including the cylinder 10, and the liquid temperature of the beverage is prevented from decreasing in the case of beverage extraction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage extraction device for a regular coffee brewer mounted on a cup type beverage vending machine.

[0002]

2. Description of the Related Art First, FIG. 5 shows a conventional structure of a beverage sales system including a beverage extracting device for an air pressure type brewer mounted on a regular coffee vending machine. In the figure, 1 is a brewer, 2 is a canister containing coffee beans, 3 is a coffee mill, 4 is a hot water tank, 5 is a canister containing sugar, 6 is a canister containing milk, 7 is a mixing bowl, and 8 is a brewer. A diffuser 9 which is connected in the middle of the beverage pipe between 1 and the mixing bowl 7 to receive the beverage pressure-fed from the brewer 1, 9 is a bend stage.

In addition, the brewer 1 is a raw material on the upper part,
A resin cylinder 10 having a hot water feeding portion 10a, a vertically movable filter block 11 combined with the lower portion of the cylinder 10, and a valve mechanism 12 having a valve body 12a for closing an upper opening surface of the cylinder 10. And a blower 14 for injecting pressurized air into the cylinder 10 through the air supply conduit 13,
The filter block 11 is composed of a supply mechanism 15 for supplying a paper filter 15a.

The beverage extraction operation with such a configuration is performed as follows. When a drink vending order is given to the vending machine,
With the cylinder 10 of the brewer 1 and the filter block 11 being in close contact with each other, first, the coffee ground material ground in the coffee mill 3 and hot water are put into the cylinder 10, and then pressurized air is blown into the cylinder to supply the raw material. Stir and extract coffee. Next, the valve body 12a of the valve mechanism 12 descends to close the upper opening surface of the cylinder 10, and in this state, pressurized air is further blown onto the liquid surface in the cylinder. As a result, the coffee is supplied to the paper filter 15a and the filter block 1
1, is discharged from the cylinder 10, and is discharged to the diffuser 8 on the downstream side. On the other hand, additive raw materials such as sugar and milk are carried out to the mixing bowl 7, stirred with the coffee flowing down from the diffuser 8, and then supplied to the cup 16 carried out to the bend stage 9.
Immediately before the end of the extraction operation, the filter block 11 descends and separates from the cylinder 10, and the coffee dregs remaining on the paper filter 15a are discharged from the brewer 1 together with the paper filter.

[0005]

By the way, the beverage (coffee) extracted by pouring the coffee powder and the hot water supplied from the hot water tank 4 into the cylinder 10 of the brewer 1 as described above is heated by heat during the extraction process. Since the cylinder 10 and the like are deprived, the finished temperature of the beverage becomes lower than the hot water temperature stored in the hot water tank 4, and if the beverage is supplied to the cup 16 as it is, the beverage becomes hot. This drop in liquid temperature is also related to the length of waiting time for sales, the ambient temperature of the surroundings, and the like.

Therefore, conventionally, as shown in FIG. 5, a diffuser 8 provided on the downstream side of the lure 1 is equipped with a heater 8a so as to be preheated to a high temperature state at all times, and a beverage passing therethrough is reheated at the time of sale. Therefore, the temperature drop in the extraction process is compensated. However, it has been empirically found that the above-mentioned conventional beverage heating method causes the following problems. That is, even after the beverage is discharged from the diffuser 8, a small amount of the beverage remains at the bottom of the diffuser, and the residual beverage is evaporated by the heating of the heater 8a during the stand-by for sale and the liquid residue (black in coffee is black). Slag) will be deposited on the wall. Then, at the time of the next sale, the liquid that has flowed into the diffuser 8 will separate from the wall of the diffuser, mix with the beverage and be exhaled into the cup to become suspended foreign matter, and the flavor of the beverage will be impaired. As a quality.

The present invention has been made in view of the above points, and an object thereof is to solve the above problems and to provide a beverage extraction device capable of delivering a high-quality beverage to a cup at a high temperature suitable for sale. Especially.

[0008]

In order to achieve the above object, the present invention provides a beverage brewing apparatus with cylinder heating means for keeping the cylinder at a high temperature during beverage brewing.
Here, the cylinder heating means can be configured as follows. (1) As a cylinder heating means, a case that accommodates a main part of a beverage extraction device including a cylinder, a heater that blows hot air into the case, and a fan are configured. (2) As the cylinder heating means, a cylindrical metal conductor installed on the inner circumference of the cylinder, an induction coil arranged opposite to the outer circumference of the cylinder with the cylindrical metal conductor as a heated object, and a power source connected to the induction coil are provided. Configure. (3) As a cylinder heating means, a heater is attached to the outer peripheral wall surface of the cylinder. (4) As a cylinder heating means, a heater protruding toward the inside of the cylinder is attached to the valve body of the valve mechanism.

[0009]

With the above structure, since the cylinder of the beverage extracting device is kept in a high temperature state at the time of selling the beverage, the hot water supplied from the hot water tank is not deprived of the heat to the surroundings, and the beverage extracting is performed in the cylinder. The liquid temperature drop in the process is suppressed. Therefore, the beverage extracted in the cylinder can be discharged from the beverage extraction device and supplied to the cup while keeping the high temperature state.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In each embodiment, the same parts as those in FIG. 5 are designated by the same reference numerals. Embodiment 1 FIG. 1 shows the configuration of an embodiment corresponding to claim 2 of the present invention. In this embodiment, as the cylinder heating means of the brewer 1, a case 17 containing the cylinder 10 and other main components of the beverage extraction device such as the filter block 11 and the valve mechanism 12, and a heater 18 for blowing hot air into the case 18 are provided. , And a fan 19. Here, although not shown, the case 17 is provided with a temperature sensor, and the heater 18 and the filter 19 are energized and controlled through the controller so that the temperature inside the case is always maintained at a constant temperature. With this configuration, the cylinder 1 of the beverage extraction device 1 housed in the case 17
0, the main parts such as the filter block 11 are maintained in a high temperature state, so that it is possible to prevent the liquid temperature of the beverage from decreasing during the beverage extraction process.

Embodiment 2 FIG. 2 shows an embodiment corresponding to claim 3 of the present invention. In this embodiment, as a cylinder heating means of the beverage extracting device, a cylindrical metal conductor 20 is installed on the inner peripheral wall surface of the cylinder 10, and a high frequency power source is provided on the outer peripheral side of the cylinder 10 so as to face the metal conductor 20. An induction heating device is configured by winding an induction coil 22 connected to 21. Then, when a drink sales command is given, the high frequency power supply 21 is turned on to energize the induction coil 22 to induction heat the metal conductor 20 installed in the cylinder. As a result, the temperature of the metal conductor 20 rapidly increases, and the cylinder 10 and the raw material and hot water charged into the cylinder are heated to a high temperature.

Embodiment 3 FIG. 3 shows an embodiment corresponding to claim 4 of the present invention. In this embodiment, as a cylinder heating means of the beverage extracting device, an electric heater 23 is attached to the outer peripheral wall surface of the cylinder 10, the raw material of the upper part of the cylinder, and the lower surface of the hot water feeding part 10a, and the heater is energized to keep the cylinder 10 at a high temperature at all times. It is heated to the state to prevent the liquid temperature of the beverage from decreasing during the beverage extraction process.

Embodiment 4 FIG. 4 shows an embodiment corresponding to claim 5 of the present invention. In this embodiment, as a cylinder heating means of the beverage brewing apparatus, a rod-shaped electric heater 24 protruding toward the inside of the cylinder is attached to the valve body 12a of the valve mechanism 12 that closes the upper opening surface of the cylinder 10. In the standby state, the radiant heat of the heater 24 keeps the cylinder 10 at a high temperature, and the valve mechanism 1 is used during beverage extraction.
When 2 is lowered, the heater 24 is immersed in the beverage staying in the cylinder to heat the beverage from the center side in the cylinder.

Although each of the above-mentioned embodiments has been applied to the air pressure type brewer, it is needless to say that it can be applied to the piston pressure type brewer.

[0015]

As described above, according to the configuration of the present invention, since the cylinder of the beverage extraction device is heated to a high temperature state, the beverage in the cylinder is deprived of heat to the surroundings during the beverage extraction process and the liquid is extracted. It is possible to prevent the temperature from decreasing, which allows the beverage to be discharged from the beverage extraction device and supplied to the cup while being kept at a high temperature suitable for sale. Moreover,
Since the beverage is heated in the cylinder, even if a small amount of the beverage remaining in the cylinder evaporates due to the heating while waiting for sale and a liquid residue is generated, this liquid residue will be filtered by the filter block, Since it is filtered by the paper filter, it is not mixed with the beverage and delivered to the cup, and the problem that the liquid residue is discharged as foreign matter into the cup unlike the conventional case is eliminated.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a beverage extraction device corresponding to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a beverage extraction device corresponding to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a beverage extraction device corresponding to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a beverage extraction device corresponding to a fourth embodiment of the present invention.

[Fig. 5] In-machine system diagram of a regular coffee vending machine including a conventional beverage extraction device

[Explanation of symbols]

 1 Brewer (beverage extractor) 10 Cylinder 11 Filter block 12 Valve mechanism 12a Valve body 17 Case 18 Heater 19 Fan 20 Metal conductor 21 High frequency power supply 22 Induction coil 23 Heater 24 Heater

Claims (5)

[Claims] Claim: What is claimed is: 1. A cylinder having an inlet for pouring raw material and hot water in an upper portion, and a filter block combined in a lower portion of the cylinder.
In a beverage extraction device that is equipped with a valve mechanism that closes the upper opening surface of the cylinder, pressurizes the raw material and hot water charged into the cylinder to extract the beverage, and delivers the beverage through the filter block. A beverage extraction device comprising a cylinder heating means for keeping a high temperature. 2. The beverage brewing apparatus according to claim 1, further comprising, as the cylinder heating means, a case accommodating a main part of the beverage brewing apparatus including a cylinder, a heater for blowing hot air into the case, and a fan. Beverage extractor characterized by. 3. The beverage brewing apparatus according to claim 1, wherein as a cylinder heating means, a cylindrical metal conductor installed on the inner circumference of the cylinder and the cylindrical metal conductor as a heated object are arranged opposite to the outer circumference of the cylinder. A beverage brewing device comprising an induction coil and a power supply connected to the induction coil. 4. The beverage brewing device according to claim 1, wherein a heater is attached to the outer peripheral wall surface of the cylinder as the cylinder heating means. 5. The beverage brewing apparatus according to claim 1, wherein the cylinder heating means has a heater attached to the valve body of the valve mechanism so as to project toward the inside of the cylinder.