JPH02242495A - Drink extracting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a beverage extraction device that is installed in a beverage vending machine to produce beverages such as regular coffee and black tea.

[Conventional technology]

This type of beverage extraction device combines a cylinder and a filter block vertically, puts a predetermined amount of raw materials and hot water into the cylinder, blows pressurized air into the cylinder from the outside to stir the raw materials and hot water, and then This is a beverage extraction device that extracts and pressure-feeds beverages from inside the cylinder through a filter block by closing a valve installed at the top opening of the cylinder and then blowing pressurized air into the cylinder again. This is known from Japanese Patent Application Laid-Open No. 61-31108.

In addition, in order to introduce pressurized air into the cylinder with the above configuration, an air pump is connected to the cylinder via air piping,
Air sucked in from the surrounding area is pressurized by an air pump, and then blown into the cylinder as pressurized air through air piping.

[Problem to be solved by the invention]

By the way, the conventional device described above has the following problems. In other words, if the room-temperature air sucked in from around the beverage extraction device is blown into the cylinder as pressurized air as described above, heat will be generated during the raw material stirring process because the room-temperature air comes into direct contact with the hot water. It is taken away and the temperature of the water drops. Furthermore, during the beverage extraction and pressure feeding process, room temperature air is blown onto the liquid surface of the beverage remaining in the cylinder, so heat is absorbed by the air and the temperature of the beverage decreases as described above. Beverages offered for sale were lukewarm,
It becomes impossible to maintain the temperature of the beverage suitable for sale.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a beverage brewing device that eliminates the drawbacks of conventional devices and is capable of extracting and pumping beverages in a high temperature state.

[Means for Solving the Problems] In order to solve the above problems, the beverage brewing device of the present invention is configured by providing an air heating means in the air guide path.

[Effect]

In the above configuration, as the air heating means, for example, a heater may be provided in the middle of the air piping, or a hot water tank installed inside the vending machine may be effectively used as a heat source for the air heating means, and the air heating means may be placed on the suction side of the air pump. This is done by connecting the connected air piping to the upper space inside the hot water tank.

As a result, the temperature of the pressurized air introduced into the cylinder in accordance with the beverage extraction operation is higher than the temperature of the surrounding room temperature air, and the amount of heat taken away from the beverage during the beverage extraction and pressure feeding process is correspondingly reduced. This allows the beverage to be extracted and pumped while maintaining a high temperature state.

〔Example〕

1 and 2 are configuration diagrams of different embodiments of the present invention, respectively.

First, the embodiment shown in Fig. 1 is intended for a regular coffee vending machine, and is equipped inside the vending machine as a heat source for the air heating means for pressurized air introduced into the cylinder of a pressurized air beverage extraction device. It utilizes a hot water tank. In the figure, 1 is a beverage extraction device, 2 is a raw material box containing coffee beans, 3 is a coffee mill, 4 is a hot water tank with a built-in heater 4a, 5 is a raw material box for beverage additives such as sugar and milk, and 6 is a raw material box containing coffee beans. Mixing bowl, 7 is a cup.

The beverage extraction device 1 also includes a cylinder 8 , a movable filter block 9 coupled to the lower end of the cylinder 8 , and a valve mechanism 10 that closes the upper opening of the cylinder 8 . An air pump 13 is connected to the piping 11 via a three-way switching valve 12. Note that 14 is a filter that is unrolled from a roll and placed on top of the filter block 9.

On the other hand, according to the present invention, an air pipe 15 is connected between the suction port of the air pump 13 and the upper space of the hot water tank 4 in the beverage brewing device 1 having the above configuration. In addition, 1
6 is an air valve connected to the air pipe 15.

With this configuration, while waiting for sales, hot water heated by the heater 4a is stored in the hot water tank 4, and high-temperature air heated by the hot water temperature remains in the upper space of the tank. . When a sales command is given here, the filter block 9 is connected to the cylinder 8 of the beverage extraction device 1, and then
A predetermined amount of coffee powder and hot water are put into the cylinder, and in the subsequent beverage extraction operation, the air pump 13 is started, the air valve 16 is opened, and the three-way switching valve 12 is opened in accordance with the timing of the raw material stirring and beverage pressure feeding process. Performs switching, stirring of raw materials, extraction of beverages, and pressure feeding. As a result, the high temperature air that had accumulated in the hot water tank 4 is removed from the air pipe 1.
5. Air pump 13. cylinder 8 through air piping 11
is blown in as pressurized air. Note that air is sucked into the hot water tank 4 through an air filter 4b.

As is clear from the above explanation, the pressurized air blown into the cylinder 8 during the beverage extraction operation uses high-temperature air heated inside the hot water tank 4, so that it is deprived from the beverage during the extraction operation. The amount of heat generated is small, and the beverage is force-fed from the beverage extraction device 1 while maintaining a high temperature state, and is supplied to the cup 7 via the mixing bowl 6 at the subsequent stage.

In the embodiment shown in FIG. 2, an air heater 17 is installed in an air pipe 11 between a cylinder 8 and an air pump 13 as an air heating means, and the air pump 13 sucks air from the surrounding area. The heater 17 is energized and controlled in conjunction with the operation of the air pump 13.

In this embodiment as well, as in the embodiment shown in FIG. 1, high-temperature pressurized air heated by the heater 17 is blown into the cylinder 8 in time with the beverage extraction operation, thereby lowering the temperature of the beverage. is suppressed.

〔Effect of the invention〕

As described above, in the beverage extraction device according to the present invention, by providing the air heating means in the air introduction path, the pressurized air blown into the cylinder in accordance with the beverage extraction operation is heated to a high temperature that is higher than the surrounding air. Air can be blown into the container, which prevents the temperature of the beverage from dropping and allows hot beverages to be extracted, pressure-fed, and sold.

[Brief explanation of drawings]

FIGS. 1 and 2 are configuration diagrams of different embodiments of the present invention. In the figure, 1: Beverage extraction device, 4: Hot water tank, 7: Cup, 8 Nijirinda, 9: Filter block, 10: Valve mechanism, 11
．． ts: Air piping, 13: Air pump, 17: Air heater.

Claims (1)

[Claims] 1) A beverage brewing device in which raw materials and hot water are put into a cylinder and pressurized air is blown into the cylinder to extract and force-feed the beverage, characterized in that an air heating means is provided in the air guide path. .