JPH055030U - Beverage extractor - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The deposits on the filter provided at the water inlet of the container containing the ion exchange resin are washed away with the above-mentioned ion exchange resin regeneration treatment liquid to remove the ion exchange resin. It can be used for a long time without replacement. [Constitution] A male screw 8a is provided in one opening of a container 8 for housing the ion exchange resin layer 10, and a male screw 8b is provided in the other opening, both male screws being provided on the inner periphery of the inner tank bottom opening. It can be screwed to the provided female screw 2c. For example, when the container 8 is used for a long time with the male screw 8a side facing upward, the ion exchange capacity of the ion exchange resin layer 10 decreases,
Alternatively, when dust or the like is accumulated on the upper filter 9,
By removing the container 8 from the inner tank 2b and attaching it to the inner tank 2b with the male screw 8b side facing upward, and by pouring the regeneration treatment liquid of the ion exchange resin 10a into the inner tank 2b, the ion exchange resin is treated with this treatment liquid. 10a is regenerated and deposits on the filter 9 are removed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a beverage extractor, such as a coffee extractor, for extracting a beverage by heating water supplied from a water tank with a heater and pouring it into a raw material in an extraction container.

[0002]

[Prior Art]

 Conventionally, in a beverage extractor of this type, for example, a coffee extractor, tap water is supplied to the water tank of the coffee extractor as it is, and the water supplied from the water tank is heated by a heater to store the coffee in the extraction container. It was poured into beans and coffee was extracted.

In addition, tap water contains ions such as calcium, magnesium, and iron in order to provide the taste of drinking water. However, there is a problem that calcium and magnesium in the above ions impair the extraction of caffeine and good tannin, which are components of coffee, when extracting coffee, and deteriorate the taste of coffee. Although most of the coffee extract is water, no consideration has been given to the water to be extracted. For this reason, as described in Japanese Patent Application No. 1-118666 and Japanese Patent Application No. 2-305705, the ion-exchange resin is housed in a container having a water-permeable filter at its entrance and exit, and the container is A coffee extractor in which water is attached to a water tank has been proposed.

[0004]

[Problems to be solved by the device]

 However, since the ion exchange capacity of the ion exchange resin deteriorates when it is used for a long time, it was necessary to regenerate the ion exchange resin or replace the entire container. In addition, there is a problem that dust and the like in tap water accumulates on the filters 9 and 9 and becomes clogged.

The present invention has been made in order to solve such a problem, and when the ion exchange resin is regenerated, the attachment direction of the container is reversed so that the deposit accumulated on the filter is removed by It is intended to be removed with a treatment liquid for regenerating exchange resin.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a water tank 2 for storing water for extraction, a heater 17 for heating water supplied from the water tank 2, and an extraction container 22 for accommodating raw materials for beverages to be extracted. A container 8 provided with a cup 27 for storing the extracted beverage and having water-permeable filters 9 and 9 at its inlet and outlet for accommodating an ion exchange resin layer 10 composed of an ion exchange resin 10a and an antibacterial substance 10b. In the beverage extractor that can be attached upside down to the water tank 2, the attachment direction of the container 8 is inverted when the ion exchange resin 10a is regenerated, and the filter 9 is treated with the regeneration treatment liquid. It is characterized in that the deposits deposited on 9 are removed.

[0007]

[Action]

 In the above configuration, while the beverage extractor is being stored, bacterial growth is prevented by the antibacterial substance in the ion exchange resin layer 10 in a wet state, so that a hygienic beverage is always extracted and the container 8 is used at the time of beverage extraction. Since there is no outflow of bacteria that have grown from the ion-exchange resin layer 10 inside, the filters 9 and 9 and the connecting pipe 16 are not clogged.

Further, since the container 8 can be attached upside down to the water tank 2, the direction of attachment of the container 8 is reversed when the ion exchange resin layer 10 is regenerated to regenerate the ion exchange resin. The deposits deposited on the filters 9 and 9 can be removed with the processing liquid for use.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described by taking a coffee extractor as an example.

FIG. 1 is a sectional view showing an embodiment of a coffee extractor according to the present invention, in which a coffee extractor main body 1 is provided with a water tank 2, a connection pipe 16, a heater 17, and an extractor. A container 22, a cup 27, etc. are arranged.

The water tank 2 has a double structure inside, and a water stop valve 5 and a cover 6 of the water stop valve 5 are attached to the bottom opening of the outer tank 2 a. Further, at the bottom of the inner tank 2b, a container 8 having, for example, 200 mesh water-permeable filters 9 and 9 at the upper and lower inlets and outlets, is provided inside, for example, as a sodium ion type ion exchange resin 10a and an antibacterial substance. In a state where the silver-impregnated activated carbon 10b is mixed, for example, the ion-exchange resin 15g and the silver-impregnated activated carbon 10g are accommodated, and they are detachably fitted through a packing 11.

An air pipe 3 is provided between the side walls of the outer tank 2a and the inner tank 2b so as to communicate from the bottom of the outer tank 2a to above the water tank 2. The air pipe 3 controls the atmospheric pressure of the outer tank 2a and the inner tank 2b so that the water in the inner tank 2b smoothly passes through the inside of the container 8 filled with ion exchange resin and flows into the outer tank 2a. It is for adjustment.

The water tank 2 is removably and watertightly attached to the water tank attachment portion 12 of the main body 1 via the packing 7. A protrusion 13 is formed at the center of the water tank attachment portion 12. The protrusion 13 is for pushing up the water stop valve 5 when the water tank 2 is attached to the coffee extractor main body 1 and guiding the water in the water tank 2 into the main body 1.

A check valve 14 is attached below the protrusion 13. This valve 14 is connected to a connecting pipe 16 via a joint 15. The connection pipe 16 is guided to the heater 17. The heater 17 is formed in an annular shape, and is attached so that the pipe 16 surrounds the outer peripheral portion thereof. The pipe 16 that has passed through the heater 17 is guided to the upper center of the brewing container 22, which is the upper part of the coffee brewer body 1. The tip of this pipe 16 forms a hot water supply port 20. A lid 21 is attached to the upper side of the extraction container 22. An inclined portion 21a from the inside to the outside and openings 21b, 21b, ... Are formed on the upper surface of the lid 21 so that the hot water is evenly dispersed in the extraction container 22.

The extraction container 22 is formed in a substantially bowl shape, and an extraction port 22a is provided at the center of the bottom. A drop leakage prevention valve 25, which is provided with a spring (not shown) for urging the extraction port 22a in a direction to normally close the extraction port 22a, is attached to the extraction port 22a. A cup 27 for storing and retaining the extracted coffee is placed on the upper plate 19 of the heater 17 below the extraction container 22. The cup 27 is provided with a handle 28 and a lid 26. An opening 26a is formed in the center of the lid 26.

Next, the operation of the coffee extractor configured as described above will be described. First, the cup 27 to which the lid 26 is attached is placed on the plate 19. The paper filter 23 and the coffee beans 24 are housed in the extraction container 22, and the container 22 with the lid 21 attached is set in the main body 1. At this time, the drop leakage prevention valve 25 is opened by the contact between the projection (not shown) provided on the valve 25 and the lid 26 of the cup.

Next, a required amount of tap water is put into the inner tank 2b of the water tank 2 and set in the main body 1. At this time, the water stop valve 5 is pushed up by the protrusion 13 of the main body 1 and the opening at the bottom of the water tank 2 is opened.

When the tap water replenished in the inner tank 2b of the water tank 2 passes through the ion exchange resin layer 10, it turns into calcium ion and magnesium ion contained in the tap water. Become. The speed of passage through the ion-exchange resin layer 10 depends on the roughness of the mesh of the filters 9 and 9, but in this embodiment, a passage speed of about 100 cc / min is adopted by using a 200 mesh filter. At this speed, tap water can pass through slowly and have sufficient contact time with the ion exchange resin 10a. Further, the ion exchange resin 10a (about 30 mesh) and the silver-impregnated activated carbon 10b (8 to 32 mesh) do not pass through the eyes of the filters 9 and 9. Further, since the air pipe 3 is provided to adjust the atmospheric pressure, water can smoothly pass through the ion exchange resin layer 10.

In this way, the water ion-exchanged to have a hardness of about 20 ppm is guided to the vicinity of the heater 17 through the connection pipe 16 and is heated, so that part of the water is boiled. Therefore, the pressure in the connecting pipe 16 rises, so that the check valve 14 is temporarily closed and the hot water is guided to the hot water supply port 20. The hot water guided to the hot water supply port 20 is sprayed on the coffee beans 24 in the extraction container 22 from the openings 21b, 21b ... Of the lid 21 of the extraction container 22.

As a result, the amount of hot water in the connecting pipe 16 decreases, the pressure decreases, the check valve 14 is opened, and water is introduced into the connecting pipe 16. In this way, the steps of supplying water, heating, and discharging hot water are repeated until the water in the tank 2 is exhausted.

The hot water sprinkled in the control container 22 passes through the coffee beans, and is dripped into the cup 27 from the container bottom extraction port 22a through the drop leakage prevention valve 25. When the extraction container 22 is taken out after the coffee extraction is completed, the extraction port 22a is closed by the restoring force of the spring of the drop leakage prevention valve 25. Therefore, even if the coffee liquid remains in the extraction container 22, it does not leak. The extracted coffee liquid is kept warm on the plate 19 as needed. The heat retention temperature is controlled by the temperature controller 18.

FIG. 2 is an enlarged cross-sectional view showing the attachment structure between the ion exchange resin layer container and the water tank according to the present invention.

In FIG. 2, 8 a is a male screw provided on the outer circumference of one opening of the container 8, and 8 b is a male screw also provided on the other opening of the container 8. Then, these male screws 8a, 8b are adapted to be screwed into female screws 2c provided on the inner periphery of the bottom opening of the inner tank 2b.

Therefore, for example, when the ion exchange resin layer 10 is used for a long time with the male screw 8a side facing upward and the ion exchange capacity of the ion exchange resin layer 10 is reduced, or dust or the like is accumulated on the upper filter 9, the inner tank 2b is removed. The container 8 is removed, this time the male screw 8b side of the container 8 is attached to the inner tank 2b, and the regeneration treatment liquid of the ion exchange resin 10a is added to the inner tank 2b. The resin 10a is regenerated and the deposits deposited on the filters 9 and 9 are removed.

As described above, according to this embodiment, calcium ions and magnesium ions in the tap water are ion-exchanged with sodium ions, and coffee is extracted with soft water having a hardness of about 20 ppm. Coffee can be extracted without disturbing the extraction of caffeine and high-quality tannin.

[0026]

[Effect of the device]

 Since the beverage extractor of the present invention is configured as described above, it suppresses bacterial growth during storage in the ion exchange resin layer to provide a safe beverage, and at the time of regenerating the ion exchange resin, It is possible to use it for a long period of time without replacing the ion exchange resin by reversing the attachment direction of the container containing the exchange resin and removing the deposits on the filter with the regeneration treatment liquid.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a coffee extractor according to the present invention.

FIG. 2 is an enlarged cross-sectional view showing an attachment structure of an ion exchange resin layer storage container and a water tank of the coffee extractor according to the present invention.

[Explanation of symbols]

 2 Water Tank 8 Container 9 Filter 10 Ion Exchange Resin Layer 17 Heater 22 Extraction Container 27 Cups

Claims (1)

[Claims for utility model registration] 1. A water tank 2 for storing water for extraction, and a heater 17 for heating water supplied from the water tank 2.
The ion-exchange resin 1 is provided with an extraction container 22 for containing the raw material of the beverage to be extracted and a cup 27 for holding the extracted beverage.
0a and an antibacterial substance 10b. A container 8 in which water-permeable filters 9 and 9 are provided at the inlet and outlet for accommodating the ion-exchange resin layer 10 can be attached upside down to the water tank 2 for beverage extraction. In the container, the attachment direction of the container 8 is reversed when the ion exchange resin 10a is regenerated, and the filters 9 and 9 are replenished with the treatment liquid for regeneration.
A beverage extractor, characterized in that deposits accumulated on are removed.