JP2725934B2 - Vending machine extraction filtration equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extraction filtration device.

[0002]

2. Description of the Related Art This type of extraction and filtration apparatus is disclosed in Japanese Utility Model Laid-Open Publication No.
No., for example. It is configured as shown in FIGS.

[0003] The extraction and filtration apparatus is a brewer unit 1 having an open lower surface as shown in FIG. 2, and a filter which is driven up and down to a position where the lower surface opening 2 of the brewer unit 1 is closed and a position where it is opened as shown in FIG. It comprises a receiver 3, a valve element 6 for opening and closing the upper opening 5 of the extraction chamber 4 of the brewer unit 1, an opening and closing device 7 for driving the filter receiver 3, and the like.

[0004] The extraction filtration operation is executed as follows.
First, as shown in FIG. 3, the lower opening 2 of the brewer unit 1 is closed by the filter receiver 3, and the valve 6 is pushed down against the bias of the compression spring 8 to open the upper opening 5 of the extraction chamber 4. I do. In this state, as shown by an arrow A, the raw material and hot water are introduced into the extraction chamber 4 from the upper opening 5, and in this state, the air in the vending machine is pressurized by a pump (not shown). This pressurized air is supplied from the supply port 9 as shown in
10 to stir the mixture 11 of the raw material and the hot water, and then release the depression of the valve body 6 as shown in FIG.
The upper opening 5 is closed to close the extraction chamber 4, and in this state, air 10 is further blown from the supply port 9 to increase the internal pressure of the extraction chamber 4, and the mixed liquid 11 is transferred to the brewer unit 1 and the filter receiver 3. Forcibly filtered by the paper filter 12 sandwiched by the. The hot water in which the extracted extract is dissolved passes through the paper filter 12 and is discharged to the cup via the pipe 13, and the raw material residue 14 remains on the paper filter 12. Next, as shown in FIG.
The paper filter 12 to which is attached is replaced with the one used for the next sale.

The valve body 6 is driven by a valve opening / closing cam 16 attached to an output shaft 15 of the opening / closing device 7, and the filter receiver 3 is driven by a main cam 17 attached to the output shaft 15 of the opening / closing device 7 via a slide shaft 18. While being driven, the valve body 6 and the filter receiver 3 move as shown in FIGS. 3 to 6 while the output shaft 15 makes one rotation.

[0006]

The extraction and filtration apparatus having such a conventional configuration is used for selling coffee.
Since the mixed liquid 11 is stirred by blowing the air 10 in the process shown in FIG. 4, there is a problem that most of the aroma of coffee escapes into the vending machine accompanying the blown air 10. is there.

[0007] An object of the present invention is to provide an extraction and filtration device that does not release a scent in a stirring step.

[0008]

According to a first aspect of the present invention, there is provided an extraction and filtration apparatus, wherein a raw material and hot water are charged into an extraction chamber from an upper opening of an extraction chamber of a brewer unit, and the raw material and hot water charged into the extraction chamber are mixed. In a cup-type vending machine in which air is blown into the liquid and stirred, and then the mixed liquid is filtered with a filter and the extracted filtrate is discharged into a cup, the suction side is connected to the upper part of the extraction chamber and the discharge side is the lower part of the extraction chamber. And a pump connected to the pump.

[0009]

According to this structure, when the pump is operated in the stirring step, air is blown from the lower part of the extraction chamber to stir the mixture. The air with the scent that has passed through the mixture and escaped to the upper part of the extraction chamber is sucked and circulated from the suction side of the pump connected to the upper part of the extraction chamber.

[0010]

An embodiment of the present invention will be described below with reference to FIG. In addition, what has the same effect as FIGS.
The description is given with the same reference numerals.

In the extraction and filtration device of the present invention, as shown in FIG.
An intake port 20 is open on the upper side. A pump 21 is interposed between the suction port 20 and the supply port 9 with the suction side on the suction port 20 side and the discharge side on the supply port 9 side.

With this configuration, the pump 21 is operated in the stirring step to blow air into the supply port 9.
The air 10 that has passed through the mixed liquid 11 and escaped to the upper part of the extraction chamber 4 is accompanied by a scent. The air 10 with the scent is sucked by the pump 21 through the suction port 20 and supplied to the supply port 9. And circulated to reduce the loss of coffee aroma. Since the inlet 20 is opened in the middle of the charging passage 19, the raw material and the hot water do not enter the inlet 20 when the raw material and the hot water are charged into the extraction chamber 4.

[0013]

According to the present invention, a pump is provided in which the suction side is connected to the upper part of the extraction chamber and the discharge side is connected to the lower part of the extraction chamber. Since the pump is sucked and circulated from the upper part of the extraction chamber by the pump, the fragrance does not escape into the vending machine outside the brewer unit, and a good beverage with a small fragrance can be dispensed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a stirring step of an extraction and filtration device of the present invention.

FIG. 2 is a front view of a conventional extraction and filtration device.

FIG. 3 is a cross-sectional view of a step of charging a raw material and hot water in a conventional extraction filtration device.

FIG. 4 is a cross-sectional view of a stirring step of a conventional extraction and filtration device.

FIG. 5 is a cross-sectional view of a conventional extraction filtration device in a forced filtration step.

FIG. 6 is a cross-sectional view of a step of removing a raw material residue of a conventional extraction filtration device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brewer unit 3 Filter receiver 4 Extraction chamber 5 Top opening 6 Valve 11 Mixture 20 Inlet 21 Pump

Claims (1)

(57) [Claims] 1. A raw material and hot water are charged into an extraction chamber through an upper opening of an extraction chamber of a brewer unit, air is blown into a mixed liquid of the raw material and hot water charged into the extraction chamber, and the mixture is stirred. In a cup-type vending machine that filters with a filter and discharges an extraction filtrate into a cup, the extraction filtration device of the vending machine is provided with a pump in which the suction side is connected to the upper part of the extraction chamber and the discharge side is connected to the lower part of the extraction chamber. .