JPH04326196A - Beverage extracting device - Google Patents

Abstract

PURPOSE:To offer a beverage extracting device in which the stirring of raw materials, and the extraction and supply of beverage can be operated by a simple structure, for coffee brewer, etc. CONSTITUTION:An upper face open type cylinder 3 is combined with a filter block 4 upward and downward with interposed a paper filter 5, and the beverage extracted by throwing the powdery raw materials and hot water is filtered by the paper filter. A beverage extracting device by which the beverage is supplied from the filter block through a beverage pipe line 6 to a cup 9, is equipped with a reversible air and liquid carrying pump 10 which is provided at the middle of the beverage pipe line drawn from the filter block as a tube type pump. Air sucked in from an outside is carried through the beverage pipe line to the inside of the cylinder, in the first half of a beverage extracting process, by the operation of the relevant pump in order to stir the beverage, and the extracted beverage in the cylinder is carried through the beverage pipe line, and supplied to the cup, by reversing the pump in the latter half of the process.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage brewing device for producing regular coffee, tea, etc. by being mounted on a cup-type beverage vending machine.

0002

[Prior Art] As a beverage extraction device for regular coffee, etc., a cylinder and a filter block are combined above and below a paper filter, and powder raw materials and hot water are put into the cylinder, and the extracted beverage is extracted through the paper filter. Beverage brewing devices are known in which the beverage is filtered through a filter block and fed into a cup through a beverage pipeline.

[0003] As the beverage extraction method, there is a piston pressurization method in which a cylinder is combined with a pressurizing piston to extract and deliver the beverage, or a cylinder is combined with an air pump mechanism to stir, extract, and deliver the beverage. An air pressurization method is known.

0004

[Problems to be Solved by the Invention] Incidentally, in the piston pressurization type and air pressurization type beverage brewing devices described above, in addition to the lifting mechanism for attaching and detaching the cylinder/filter block, a pressurizing piston is attached to the cylinder. drive mechanism,
Comes with a piston type valve mechanism that seals the cylinder, etc.
In addition, it is necessary to control these mechanisms in conjunction with each other in accordance with the beverage extraction process, which makes the structure of the beverage extraction device complicated and increases the cost.

[0005] The present invention has been made in consideration of the above points, and employs an open-top cylinder by omitting the pressurizing, sealing piston mechanism, air pump, etc. attached to the cylinder of the conventional device, while stirring the raw material. It is also an object of the present invention to provide a beverage extraction device that allows extraction and supply of beverages using a simple mechanism.

[0006]

[Means for Solving the Problems] In order to solve the above problems, the beverage extraction device of the present invention includes a reversible air/liquid pump in the middle of the beverage pipeline drawn out from the filter block. During the first half of the beverage extraction process, the pump operates to send air sucked in from the outside through the beverage pipeline into the cylinder to stir the beverage, and in the second half, the pump is reversed and the extracted beverage inside the cylinder is sent through the beverage pipeline. It is configured to dispense liquid into a cup.

[0007] Furthermore, a positive displacement tube type pump can be employed as the air supply/liquid supply pump in the above configuration.

[0008]

[Operation] In the above configuration, after the cylinder and the filter block are combined and the powder raw material and hot water are put into the cylinder in this state, when the air/liquid feeding pump is rotated in the air feeding mode, the beverage pipeline Air is sucked in from the outside through the filter block and blown into the cylinder, stirring the powdered raw material and hot water to extract the beverage. After the pump is temporarily stopped, the pump is then switched to the liquid feeding mode and driven in reverse, so that the extracted beverage stored in the cylinder is fed from the filter block to the cup through the beverage pipeline. That is, simply by controlling the air/liquid feeding pump by switching it from normal rotation to reverse rotation in accordance with the beverage extraction process, a series of operations of stirring the raw materials, extracting the beverage, and feeding the liquid can be performed.

[0009] Furthermore, by employing a positive displacement pump known as a tube type pump as the air/liquid pump, air and beverages can be directly supplied through the tube.
It is also preferable from a hygienic perspective because it allows liquid delivery.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. In Figure 1, 1 is a powder raw material box, 2 is a hot water tank,
3 is a cylinder with an open top; 4 is a filter block assembled to the lower end of cylinder 3; 5 is a paper filter inserted between cylinder 4 and filter block 4 to filter the extracted beverage; 6 is from filter block 4; A drawn-out beverage pipeline (flexible resin tube), 7 is a beverage supply nozzle connected to the tip of the beverage pipeline 6 and placed above the bending stage 8, and 9 is a cup. In addition,
The operation of raising and lowering either the cylinder 3 or the filter block 4 described above using a lifting mechanism (not shown), and in conjunction with this, drawing out the paper filter 5 and discharging the raw material dregs is similar to the conventional beverage brewing apparatus. It is.

On the other hand, according to the present invention, the beverage tube line 6
A reversible air/liquid pump 10 is installed at a midway point. The air/liquid pump 10 is similar to a positive displacement tube type pump used, for example, as a blood pump in the medical field, and includes an arc-shaped casing 11 that houses the tube of the pipeline 6. , a rotary disk 13 rotatably driven by a reversible drive motor 12, and a rotary disk 1.
Handling rollers 14 are distributed at regular intervals on the circumference of 3.
A tube of the pipeline 6 is laid along the inner peripheral surface of the casing 11. In this state,
The portion of the tube that comes into contact with the handling rollers 14 is pinched and crushed between the casing 11, and the tube maintains its original shape in the portion that straddles between the handling rollers 14 arranged on the circumference of the rotary disk. When the rotary disk 13 rotates, the part that handles the tube moves along the circumference of the casing 11.

[0012] Next, a description will be given of the beverage extraction operation with the above configuration. First, the cylinder 3 and the filter block 4 are closed with the paper filter 5 in between, and in this state, a predetermined amount of powder raw material and hot water are poured into the cylinder 3 from the powder raw material box 1 and the hot water tank 2. Next, when the motor 12 of the air/liquid pump 10 is started and the rotary disk 11 is driven to rotate in the direction of the dotted arrow (this direction is the air supply mode), the air sucked from the nozzle 7 flows into the pipeline 6. Air is blown through the cylinder 3, passes through the paper filter 5, and is blown out into the cylinder 3. As a result, the powdered raw material and hot water stored in the cylinder are forcibly stirred, and the beverage is extracted. After stirring the raw materials, the pump 10 is temporarily stopped to make the beverage stand still in the cylinder, and then the motor 12 of the pump 10 is reversed to move the rotary plate 13 in the direction of the solid arrow (this direction is set as the liquid feeding mode). ). As a result, the inside of the filter block 4 becomes negative pressure, and the extracted beverage in the cylinder is sent out through the pipeline 6 after passing through the paper filter 5, and is discharged and supplied to the cup 9 waiting at the bend stage 8. In addition, after discharging and supplying the beverage, cylinder 3
The paper filter 5 is separated from the filter block 4, and the paper filter 5 is sent out to discharge the raw material slag remaining on the filter. This completes one batch of beverage extraction process and returns the device to the standby state.

[0013]

Effects of the Invention Since the beverage brewing device of the present invention is constructed as described above, the cylinder into which powdered raw materials and hot water are introduced is equipped with a pressurizing piston mechanism and a cylinder sealing mechanism unlike conventional devices. A complicated mechanism such as a piston type mechanism can be omitted and a simple cylinder with an open top can be used, thereby making it possible to downsize the beverage tube device and significantly reduce costs. Moreover, by using a tube pump as the air/liquid pump installed in the middle of the pipeline, air and liquid can be directly sent through the tube, which has a positive effect in terms of hygiene. can get.

[Brief explanation of drawings]

[Figure 1] Configuration diagram of an embodiment of the present invention

[Explanation of symbols]

1 Powder raw material box 2 Hot water tank 3 Cylinder 4 Filter block 5 Paper filter 6 Pipeline 9 Cups 10 Air/liquid pump

Claims (2)

[Claims] Claim 1: A cylinder and a filter block are combined above and below a paper filter, and a powder raw material is contained in the cylinder.
This is a beverage extraction device that filters the extracted beverage by pouring hot water through a paper filter and supplies it from the filter block to the cup through the beverage pipeline. / Equipped with a liquid feeding pump, during the first half of the beverage extraction process, the air sucked in from the outside through the beverage pipeline is sent into the cylinder to stir the beverage, and in the second half, the pump is reversed and the beverage pipeline A beverage brewing device characterized in that the extracted beverage inside the cylinder is sent through the cylinder and supplied to the cup. 2. The beverage brewing device according to claim 1, wherein the air/liquid feeding pump is a positive displacement tube type pump.