JP2004016586A - Regular coffee extractor - Google Patents

Abstract

[Structure] There are two systems for injecting hot water from a hot water tank 5 through hot water valves 6 and 7, and one of the systems is provided through the hot water valve 6 so as to directly pour the ground coffee of regular coffee into the extractor. The hot water in the hot water tank 5 is injected from the upper part of the extractor, and the other system injects the hot water in the hot water tank 5 by pressurizing the lower part of the extractor with the pump 8 via the hot water valve 7. A regular coffee extractor that injects hot water pressurized into the ground coffee of regular coffee to extract the regular coffee in which the ground beans are stirred.
[Effect] It is possible to extract in about half the time compared to a conventional regular coffee extractor without causing aching or dripping, and by shortening the time, the time to wait for the customer is shortened, and per a certain time Can increase the number of sales.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a regular coffee extractor in which ground coffee (ground coffee beans) is used as a raw material and regular coffee extracted in the extractor is supplied to a cup.
[0002]
[Prior art]
Conventional technology is a cup-type coffee vending machine that supplies regular coffee extracted inside the machine using coffee ground beans as a raw material to a cup for sale, with a water-draining coffee extractor mounted inside the machine. The coffee extracted by the extractor is stored in a coffee tank at a normal temperature state, and when the coffee is sold, the coffee is sent from the tank to the dispenser by a fixed amount at a time and supplied to a cup taken out to a bend stage. In a cup-type coffee vending machine, a coffee heater is interposed in the middle of a coffee supply pipe, and when hot coffee is sold, coffee heated by the coffee heater is supplied to the cup. There is a cup-type coffee vending machine (see JP-A-2000-76541).
[0003]
In the prior art, after putting the raw material of the ground beans into the main body of the extractor to extract the regular coffee, water is added dropwise to the ground coffee beans little by little to extract the watered coffee over a long period of time. The brewed coffee extracted by the extractor is stored in a coffee tank at a normal temperature, and coffee is taken out of the coffee tank in small quantities at a time of selling the coffee, supplied to a cup, and sold as hot or iced coffee.
However, this extraction method has the following problems.
First, regular coffee is the most delicious when freshly brewed, and if left in a liquid state, it will undergo a chemical change using water as a medium to accelerate deterioration, causing the taste to smear and irritate.
[0004]
Also, after putting the ground bean raw material in the cylinder, add hot water and immerse it in the raw material, then slowly extrude it, stir with air, extrude it with a piston over time, or extrude with air pressure Or extract by suction and pour into a cup. In this method of extraction, even if the time required for the extraction is short, it takes 25 seconds or more, and as a result, the customer has to wait longer, which has a problem that it does not contribute to the increase in sales.
[0005]
[Problems to be solved by the invention]
As described above, in a vending machine of the type in which regular cups are manufactured and sold one cup at a time, it takes at least 25 seconds to sell a cup of coffee. Therefore, in the case of continuous sales or when the next customer is waiting in order, not only the waiting time of the customer becomes longer, but also the sales efficiency of the vending machine is reduced, and the profit rate is also reduced. A coffee vending machine of the storage type that solves this problem can shorten the selling operation time and the waiting time of the customer, but the coffee extracted by adding hot water to the ground coffee beans can be extracted in a short time, The aroma peculiar to regular coffee is lost in a short time because the ground beans are exposed to high-temperature water, and if the coffee beans are kept in a warm state for a long time in a coffee reservoir, the quality of the coffee is deteriorated and the flavor of the regular coffee is impaired.
[0006]
In the prior art (see Japanese Patent Application Laid-Open No. 2000-76541) which further solves this problem, a water-discharge type coffee extractor is mounted in a cup-type coffee vending machine, and the coffee extracted by the extractor is cooled at room temperature. The coffee is stored in a tank, and when the coffee is sold, a fixed amount of coffee is sent from the coffee tank to a small amount. In this case, since the raw material is a living thing, coffee liquefied using water as a medium undergoes a chemical change, and deteriorates quickly. The present invention solves this problem. In order to extract regular coffee with a light sensation favored by the Japanese in a short time, injecting hot water from the hot water tank into the extractor is divided into two systems, while In the system, hot water is directly injected from the hot water tank through the hot water valve toward the raw material in the cylinder and immersed in the raw material, and the other system uses the hot water tank through the hot water valve and pressurizes the lower part of the cylinder with a pump. It is an object of the present invention to provide a regular coffee extractor in which the extraction time is shortened by separately injecting and stirring hot water.
[0007]
[Means for Solving the Problems]
The present invention employs the following technical means.
In the invention according to claim 1, the system for injecting hot water from the hot water tank via the hot water valve is divided into two systems, and one of the systems is provided with a hot water valve so as to directly pour the ground coffee of regular coffee put into the extractor. The hot water of the hot water tank is injected from the upper part of the extractor through the hot water tank, and the other system injects the hot water of the hot water tank by pressurizing the lower part of the extractor with a pump through a hot water valve, and pressurizes with the pump pressure. The technical means of extracting the regular coffee by injecting the hot water into the ground coffee of regular coffee and stirring the ground beans was adopted.
[0008]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a regular coffee extractor according to one embodiment of the present invention. FIG. 1A shows a regular coffee brewer that extracts by suction, FIG. 1B shows a regular coffee brewer that extracts by pressing a piston, and FIG. FIG. 1C shows a method in which extraction is performed under pressure using a hot water pump, and FIG. These are different from each other only in the extraction method, and the basic extraction means of the present invention are the same. Therefore, a specific detailed description will be given in the extraction method by suction in FIG.
[0009]
First, the configuration of the present invention will be briefly described.
The extractor 1 is provided with a cylinder 2 at an upper portion thereof so that ground beans and hot water can be supplied, and a piston 4 at a lower portion of the extractor 1 via a paper filter 3. While extracting.
Then, the hot water is supplied from the hot water tank 5 through the first hot water valve 6 so that hot water can be supplied to the upper part of the extractor 1, and the second hot water can be injected from the hot water tank 5 directly above the paper filter 3. The hot water is supplied by a pump 8 via a hot water valve 7.
[0010]
In order to supply hot water with the pump 8 through the second hot water valve 7, if it is a square cylinder, it is agitated so as to scoop up the ground coffee of regular coffee slightly downward from the horizontal direction from the corner to the opposite corner. A nozzle is formed for jetting.
[0011]
This enables uniform stirring and short-time stirring. Since the hot water is jetted by the pump pressure in this manner, the temperature of the extracted hot water can be uniformly stirred without lowering. Further, in the case of a cylindrical cylinder, a nozzle can be provided at an angle along the inner peripheral surface so that stirring can be performed uniformly.
[0012]
With this configuration, it takes time to mix and stir with a stirrer, and good results cannot be obtained even if the shape, angle, and rotation speed of the blades are changed. However, by adopting a configuration like the present invention, it was possible to extract regular coffee without lightness, withdrawal, and acridness that Japanese prefer.
[0013]
1 (b), the method of pressurized extraction with the hot water pump 8 of FIG. 1 (c), and the method of stirring and pressurized extraction with the air pump 9 of FIG. 1 (d). Similarly, hot water is divided into two systems from the hot water tank 5 and injected into the extractor 1, and hot water is directly injected into the extractor 1 while being immersed in the raw material, and hot water pressurized by the pump 8 is injected from the lower part of the extractor 1. It is possible to shorten the extraction time by dividing into hot water and stirring.
By doing so, it was confirmed that the taste was free of acrid taste.
[0014]
Then, a program for changing the ratio of the amount of hot water to be injected into the two systems from the hot water tank 5 in two ways (1: 9 to 9: 1) is formed so that the ratio can be changed corresponding to hot / cold / bean seeds. It makes the ratio and pressure variable.
[0015]
Hot water to be injected by the pump 8 is injected at a pressure of 0.01 kg / cm ^{2 to} 0.5 kg / cm ² and a flow rate of 5 cc to 30 cc / sec. The operating time of the pump 8 is 3 to 5 seconds, and while checking the ratio of the amount of hot water to be added, the pump pressure, the flow rate, and the operating time, the type of the regular coffee beans and whether it is hot or cold. Is to set the optimal one.
The nozzle that injects hot water from the pump 8 is idle-sprayed with air for 1-2 seconds after extraction to prevent clogging.
[0016]
【The invention's effect】
According to the present invention, as a result of employing the above configuration, the following effects can be obtained.
(1) Extraction can be performed in about half the time as compared with a conventional regular coffee extractor without causing bruising or dripping.
(2) By shortening the time, the waiting time for the customer is shortened accordingly, and the number of sales per fixed time can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a regular coffee extractor according to one embodiment of the present invention.
[Explanation of symbols]
1 extractor 2 cylinder 3 paper filter 4 piston 5 hot water tank 6 first hot water valve 7 second hot water valve 8 pump 9 air pump

Claims (1)

There are two systems for injecting hot water from a hot water tank through a hot water valve, and one of the systems is for extracting hot water from a hot water tank through a hot water valve so as to apply it directly to the ground coffee of regular coffee put into the extractor. In the other system, the hot water in the hot water tank is injected into the lower part of the extractor by pumping through a hot water valve with a hot water valve, and the hot water pressed by the pump pressure is ground into regular coffee. A regular coffee extractor characterized by extracting regular coffee in which the beans are sprayed to stir the ground beans.

Images