JP2005046165A - Beverage extraction apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means for easily, safely and surely extracting uniform beverages by everyone. <P>SOLUTION: A functional filter 43 is mounted on an extraction cup 23, an extraction material 45 and extraction liquid 47 are put in and it is mounted inside an extraction chamber 7. When a door 11 is closed and the operation of a magnetron 13 is started, the extraction liquid 47 is heated inside an electromagnetic shield 17, extraction is accelerated, and the functional filter 43 passes the extraction liquid 47 through by temperature rise and drips it into a cup 31 for extraction reception from openings 25 and 29. When the amount of dripping is saturated, it is detected by a load sensor 35 and the operation of the magnetron 13 is stopped. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when components are extracted from the extractant by immersing the extractant such as tea, coffee, and herbs in the extract and heating with electromagnetic waves, the extract is allowed to pass until the extract reaches a certain temperature. The present invention relates to a beverage extraction device that can use a functional filter for preventing and stop heating upon completion of extraction.
[0002]
[Prior art]
Conventionally, as one of methods for extracting tea, coffee, medicinal herbs, health drinks, etc. from each extraction material, taking the case of coffee as an example, a cup as shown in the sectional view of the conventional extraction device in FIG. A pack 55 containing a predetermined amount of ground coffee beans 53 is put in 51, and a tag 59 attached to the tip of a thread 57 tied to the pack 55 is hung outside the cup 51 to prevent falling, and hot water 61 heated from above is poured. The coffee beans 53 were injected and extracted.
[0003]
[Problems to be solved by the invention]
In such conventional extraction methods, it is difficult to keep the pack and the temperature of the hot water, too thin, conversely too thick or the concentration is not constant, and if the time is too long, bitterness and astringency may occur. It was difficult to produce a delicious taste.
[0004]
The present invention is intended to solve such a conventional problem. The extract is heated by using an electromagnetic wave of a functional filter and a microwave oven that does not transmit liquid at low temperature but transmits liquid at high temperature. It is an object of the present invention to provide a beverage extraction device which can be dropped by extraction through a filter and can automatically stop heating when extraction is completed.
[0005]
[Means for Solving the Problems]
The beverage extraction apparatus of the present invention for solving the above-described problems has, as a basic configuration, an extraction having at least a machine room having an electromagnetic wave generator for heating an object to be heated by electromagnetic waves and a first opening below. A casing having a chamber, an extract receiving cup chamber located below the extraction chamber, an integral door extending over at least the extraction chamber and the extract receiving cup chamber, and allows moisture to permeate at room temperature. An extraction cup having a second opening that fits the first opening below the extraction chamber to mount a functional filter that permeates moisture at a temperature in the vicinity of the boiling point of the water and to drop the extract; An extraction liquid receiving cup that is disposed in the extraction liquid receiving cup chamber and receives the extraction liquid dropped from the second opening of the extraction cup through the first opening of the extraction chamber, the electromagnetic wave generator, and the extraction Murobe An electromagnetic shield that surrounds at least a portion of the door that covers the extraction chamber, and the extraction cup containing the extraction material and the extraction liquid in the functional filter is installed in the extraction chamber to generate the electromagnetic wave. Heat is generated in the electromagnetic shield by electromagnetic waves generated from the apparatus, and the extract passes through the functional filter due to a rise in temperature of the extract and the extract receives the extract via the second and first openings. It is configured such that it drops onto the extraction liquid receiving cup disposed in the cup chamber and that the operation of the electromagnetic wave generating device is stopped when the door is opened.
[0006]
With this configuration, the extraction liquid stored in the extraction cup can be extracted with a small amount of electromagnetic power by heating it in an electromagnetic shield with a narrow range by the electromagnetic waves generated from the electromagnetic wave generator, and the functional filter is extracted by the temperature rise of the extraction liquid By allowing the liquid to pass through, extraction with little variation can be performed, and the extraction receiving cup is out of the heating range, so that it is possible to obtain an extract that is easy to drink without being overheated after extraction.
Further, as a basic configuration which is an extension of this configuration, a plurality of sets of extraction cups and extraction liquid receiving cups are provided at positions corresponding to the upper and lower sides of the extraction chamber and the extraction liquid receiving cup chamber, respectively. It can also be accommodated.
[0008]
With this configuration, a plurality of extraction cups can be simultaneously heated and extracted into a plurality of extraction receiving cups.
[0009]
Further, in the basic configuration described above or an expanded basic configuration, the extraction liquid receiving cup chamber portion of the door of the housing can be at least so that a hand cannot be inserted therein, thereby simplifying the configuration of the door. Can be.
[0010]
Further, in the above basic or expanded basic configuration, in addition to the electromagnetic shield, a second electromagnetic shield that surrounds the extract receiving cup chamber and at least a portion of the door that covers the extract receiving cup chamber. Can be provided.
[0011]
With this configuration, even if electromagnetic waves slightly leak from the first electromagnetic shield, it is possible to prevent the human body from being affected.
[0012]
Further, in the basic configuration described above or an extended basic configuration, a load sensor for measuring the load of the extraction liquid receiving cup may be further provided to detect that the extraction liquid has completely entered the extraction liquid receiving cup.
[0013]
With this configuration, it is possible to reliably detect the completion of extraction, and it is possible to stop heating and prevent unnecessary power consumption.
[0014]
In the above-mentioned basic or expanded basic configuration, the electromagnetic wave generator can be prevented from operating when the extraction liquid receiving cup corresponding to the extraction cup is not disposed in the extraction liquid receiving cup chamber.
[0015]
Thereby, it is possible to prevent the extraction liquid from being scattered in the extraction liquid receiving cup chamber by forgetting to put the extraction liquid receiving cup.
[0016]
Further, in a configuration having a load sensor, the door can be displayed so as not to be opened or locked so as not to open until the completion of extraction is detected by the weight sensor, and this configuration does not end the extraction. It is possible to prevent the extract from being scattered while trying to be taken out.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
Hereinafter, a beverage extraction apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a beverage extraction apparatus according to Embodiment 1 of the present invention, in which (a) is a plan view, (b) is a side sectional view, FIG. 2 is a perspective view thereof, and FIG. FIG.
[0018]
In the beverage extraction device 1, the housing 3 has a front side on the left side in FIG. 1, is formed of metal or plastic, and is roughly divided into a machine room 5, an extraction room 7, an extraction liquid receiving cup room 9, and a door 11. The machine room 5 is made of a magnetron 13 as an electromagnetic wave generator and a non-conductive material such as plastic, and in addition to an electromagnetic radiation window 15 for emitting electromagnetic waves generated from the magnetron 13, a magnetron control circuit board (not shown) is housed. The first electromagnetic shield 17 prevents the electromagnetic wave component from leaking to the outside.
The electromagnetic shield 17 is provided so as to surround the outer periphery of the magnetron 13, the extraction chamber 7, and at least the extraction chamber portion 19 of the door 11. The electromagnetic shield in the portion of the door 11 is electrically connected to the electromagnetic shield in the extraction chamber 7 portion by a hinge 21.
[0019]
It is preferable that at least the entire surface of the door 11 is glazed so that the inside can be seen. The transparent portion has an electromagnetic shielding effect by a fine punching metal or the like, and is rotated in the direction of arrows AB by a hinge 21. It can be opened and closed, and when closed, it can be locked by a lock mechanism (not shown). Since these parts are conventionally known techniques, the details are omitted. The electromagnetic wave radiated from the magnetron 13 is radiated from the electromagnetic radiation window 15 toward the extraction chamber 7.
[0020]
An extraction cup 23 is inserted into the extraction chamber 7. The extraction cup 23 is formed of a non-conductive material such as polypropylene, for example, in a substantially cylindrical shape with a bottom by vacuum molding or injection molding, and one or a plurality of small openings 25 are provided in the center of the bottom, and the extracted extract is dripped. It is supposed to be. Provide a handle for carrying around if necessary.
[0021]
In the extraction chamber 7, the front (left side in FIG. 1) and a part on the upper side are openings for taking in and out the extraction cup 23 and are closed by a door 11. A guard 27 that holds the extraction cup 23 is formed in front of the electromagnetic radiation window 15 and is formed of a non-conductive material, such as plastic, and an opening 29 is provided on the bottom surface. If the diameter of the opening 29 is too large, electromagnetic wave leakage occurs, which is not preferable. If the oscillation frequency of the magnetron 13 is 2.45 GHz, the wavelength is about 120 mm, and the diameter can be 1/16 or less, that is, 7.5 mm. However, for safety reasons, the wavelength is 6 mm or less. Alternatively, if the opening diameter is larger than this, a punching metal connected to an electromagnetic shield and provided with a plurality of smaller holes or a metal net connected to the electromagnetic shield may be attached.
[0022]
Although not shown here, safety switch means for detecting that the extraction cup 23 is attached is provided. This safety switch means detects that the extraction cup is attached and thereby controls whether or not the magnetron 13 is energized. Since the safety switch means includes a conductive portion, the safety shield means It is necessary to provide the outside, and the non-conductive lever or the like is configured to mechanically transmit the presence of the extraction cup 23 to the safety switch means.
[0023]
An extraction liquid receiving cup chamber 9 is disposed at the lower part of the extraction chamber 7, and a pedestal 33 is provided so that an extraction liquid receiving cup 31 that receives the extraction liquid dropped from the opening 29 can be disposed. The load sensor 35 is arranged, and this output is connected to the control circuit board in the machine room 5 so that the extract liquid receiving cup placed on the pedestal 35 and the load of the extract liquid can be detected. .
[0024]
A power switch button 37 and a start button 39 are disposed at appropriate positions of the housing 3, that is, above the figure.
[0025]
Further, the second electromagnetic shield 41 can be provided around the extraction receiving cup chamber 9 and the front surface of the extraction receiving cup chamber 9 of the door 11. This is provided for the sake of safety when the opening 29 is large despite the shielding by the first electromagnetic shield 17 and a slight electromagnetic wave leaks from the opening 29. For such purposes, the first electromagnetic shield 17 is provided. There is no problem even if the shielding effect is not as severe as that of the shield 17.
[0026]
A functional filter 43 is placed on the extraction cup 23, and the bottom surface of the extraction cup 23 prevents the extraction force from being lowered due to the functional filter 43 being in close contact with the inner surface of the extraction cup 23 as necessary. Radial ribs may be provided upward from the top.
[0027]
The functional filter 43 may be formed by a press or the like according to the shape of the extraction cup 23, or may be formed by a method such as embossing or thermocompression bonding.
[0028]
The functional filter 43 may be any filter that does not transmit low-temperature liquid and functions to transmit high-temperature liquid close to the boiling point of water. As a first example of a functional filter, paper made of pulp fiber, pulp fiber, woven or non-woven fabric made of fiber such as cotton or polyethylene, polypropylene, or plastic with pores is used as a base material And a heat-soluble material that melts in the vicinity of a predetermined temperature so as to clog pores such as plastics or plastic.
[0029]
This heat-soluble material is suitable for edible use, has no taste, and is difficult to pass liquid at a temperature below a predetermined temperature, and can easily pass at a temperature above a predetermined temperature. It is suitable to meet the conditions. Agar is a hot water extract of viscous substances present in red algae seaweeds such as Amakusa and water removed, with a melting point of 80 ° C to 100 ° C and a freezing point of 35 ° C to 45 ° C. have.
[0030]
In addition, at least one paste selected from carrageenan, fur celeran, duran gum, starch, and modified starch is also effective as a heat-soluble material. In addition, although a use is limited, a sugar-like substance may be used.
[0031]
The functional filter 43 may be a single layer in which fibers are impregnated with agar as described above, but a functional filter that is clogged by applying or impregnating agar with a normal filter is laminated. However, other various modifications are possible.
[0032]
As a second example of the functional filter 43, a hydrophobic heat-fusible fiber such as polyester or polyolefin is formed on a non-woven fabric having a micropore with a diameter of approximately 70 to 250 μm that is substantially linear in the thickness direction, for example, by a wet method. The first nonwoven fabric layer and a second nonwoven fabric layer formed by forming a hydrophobic heat-fusible fiber such as polypropylene or polyethylene on the nonwoven fabric are laminated, and the fine pores of the first nonwoven fabric layer are fibers of the second layer. A functional filter may be used that is appropriately blocked and that the filter is not permeable to water at room temperature, and the heated water has a reduced surface tension with respect to the filter.
[0033]
In the present invention, in addition to the above, any material having the property of not allowing permeation of a low-temperature liquid as described above but permeating a high-temperature liquid close to the boiling point of water should be used as a functional filter. Can do.
[0034]
Next, the operation will be described with reference to FIG. First, the power switch button 37 is pressed, the functional filter 43 is placed on the extraction cup 23, and a predetermined amount of each of the extraction material 45 (in this case, coffee powder) and the extraction liquid 47 (in this case, water) is added. Place in the extraction chamber 7.
[0035]
When the start button 39 is pressed, the safety switch detects the extraction cup 23, and the load sensor 35 detects the placement of the extraction receiving cup 31, and the door 11 is closed by the door safety switch. The magnetron 13 starts oscillating by the circuit, and electromagnetic waves are radiated into the extraction cup 23 through the electromagnetic radiation window 15 and the extraction liquid 47 is heated. This is to prevent the extracted hot extract liquid from falling into the extraction cup chamber 9 and being scattered while the extraction receiving cup 31 is not placed.
[0036]
When the power is turned on, the load sensor 35 starts detecting the load B. The load B is the weight of the extraction cup 23 and the pedestal 33 + the weight of the dropped extract 47. When the power is turned on, the weights of the cup 23 and the pedestal 33 are measured. If the cup 23 is not placed on the pedestal 33, the dripped extract cannot be received, so that the magnetron 13 can be prevented from oscillating even when the start button 39 is pressed. It would be nice to warn you that you forgot the cup.
[0037]
Extraction of the extraction material starts after water, which is the extraction liquid, is injected. However, the degree of extraction is low during low temperatures, but the extraction proceeds as the temperature of the extraction liquid 47 increases. On the other hand, the temperature A of the extract 47 rises with time due to heating, but the dropping of the extract 47 from the functional filter 43 starts from a certain time C by the action of the functional filter 43 as in curve B, and gradually drops. When the amount increases and time D is passed, most of the extractant is dripped and the total weight applied to the load sensor 35 is saturated. For detection, it may be detected that B exceeds a predetermined amount. In this case, the weight of the cup 23 is constant, and the amount of the extract 47 needs to be constant. If this is detected, this problem can be avoided.
[0038]
Next, it is necessary to take safety measures against opening the door 11 before the extraction liquid is completely dropped. In general, in the case of a microwave oven, safety measures are taken to stop the operation of the magnetron by opening the door, but in this embodiment, if the door is further opened and the extraction receiving cup 31 is taken out, The hot extract liquid may fall into the extraction receiving cup chamber 9 and be dangerous. Therefore, a lock device may be further added to the door 11 so that the lock is not released while the weight sensor 35 does not detect the end of extraction.
[0039]
Even if no lock is provided, it may be necessary to notify the completion of extraction with light, sound, etc., or to display a display such as “Do not open the door” until extraction is completed.
[0040]
As described above, according to this embodiment, the functional filter 43 is set in the extraction cup 23, the extraction material 45 and the extraction liquid 47 are put therein, and the extraction cup 23 is placed in the extraction chamber 7 of the housing 3. Once installed, the power supply is ready. When the start button 39 is pressed, the magnetron 13 starts operating and heating starts. When the extraction is completed, the change can be detected from the load sensor 35, and the operation of the magnetron 13 stops. At the same time, the heating is completed, and anyone can easily extract a beverage with a uniform taste without causing astringency and bitterness due to excessive heating.
[0041]
Further, since the range heated by the first electromagnetic shield 17 is narrowly limited, a relatively small magnetron 13 may be used, and power can be saved.
[0042]
In addition, since an extract receiving cup, a load sensor, and the like that receive the extract 47 are outside the first electromagnetic shield, a metal cup, a cup that cannot be put in an electromagnetic cooker, or the like can be used, including metal parts. There is no need to shield the load sensor.
[0043]
In addition, since the extraction liquid receiving cup is outside the first electromagnetic shield, the extracted liquid that has been extracted is not further heated, and can be kept at an appropriate temperature that can be drunk immediately.
[0044]
Further, when the leakage of electromagnetic waves cannot be completely prevented by the first shield 17 alone, a second electromagnetic shield can be added, and the safety degree to the human body can be increased.
[0045]
In addition, although the example of extraction of coffee was given here, it can apply not only to coffee but anything, such as green tea, black tea, herbal tea, and medicinal herb.
[0046]
(Embodiment 2)
4 is a front view of a beverage extractor according to Embodiment 2 of the present invention, and FIG. 5 is a perspective view of the same. 1 and 2 in the first embodiment described above is that the front portion of the extraction cup chamber 9 of the door 11a is not closed and the observation windows 11b and 11c are provided. Functionally, when this part is released, the extraction receiving cup 31 is taken out before the extraction is completed, and the dropped extract is prevented from overflowing or being caught on the hand.
[0047]
In such a configuration, it is meaningless to provide the second electromagnetic shield as in the first embodiment. Therefore, the second electromagnetic shield can be implemented when the electromagnetic wave leakage from the first electromagnetic shield can be completely prevented. Other configurations and operations are the same as those in the first embodiment, and redundant description is omitted.
[0048]
(Embodiment 3)
6A and 6B are drawings of a beverage extractor according to Embodiment 3 of the present invention. FIG. 6A is a side sectional view, FIG. 6B is a front view, and FIG. The difference from the first and second embodiments is that three sets of extraction cups 23a, 23b, 23c and extraction liquid receiving cups 31a, 31b, 31c are provided in the extraction chamber 7a and the extraction liquid receiving cup chamber 9a in the housing 3a. It is arranged. Of course, three sets of pedestals 33a, 33b and 33c and weight sensors 35a, 35b and 35c are also required. Although not shown, three sets of safety switches corresponding to the extraction cups are required. The other points are the same as in the first and second embodiments, and detailed description thereof is omitted.
[0049]
Next, only operations different from those of the first embodiment will be described with reference to FIG. In step S1, the power switch 37 is turned on. In step S2, it is detected by the safety switch corresponding to the attached extraction cup that all or at least one of the extraction cups 23a, 23b, and 23c is attached. In step S3, it is possible to check whether all extraction receiving cups corresponding to at least the extraction cups mounted are placed on the pedestal and to turn on the start switch. When the start switch 39 is turned on in step S4, it is confirmed in step S5 whether the door 11a is closed. If it is closed, the magnetron 13 is started in step S6. If it is not, it is helpful to announce it in some way. This is for the purpose of performing extraction without the extraction receiving cup and preventing the extraction liquid from being scattered in the extraction receiving cup chamber 9a.
[0050]
In step S7, the load sensors 35a to 35c check whether or not the extraction of all extraction receiving cups 31a to 31c has been completed. If completed, the operation of the magnetron 13 is stopped in step S8. The extraction receiving cup can be taken out in the same manner as in the first mode. In step S9, the power switch 37 is turned off to complete all operations.
[0051]
As described above, according to the present embodiment, a plurality of extraction cups can be accommodated and a plurality of extractions can be performed simultaneously. If the dripping of the liquid is not completed, it cannot be taken out, or warning that it should not be taken out can prevent the inconvenience and danger that the apparatus is soiled or burned by an incorrect operation.
[0052]
In addition, although it demonstrated so that 3 sets could be extracted here, it cannot be overemphasized that 2 sets or 4 sets may be sufficient.
[0053]
【The invention's effect】
As described above, according to the beverage extraction device of the present invention, since the range of the electromagnetic shield is limited, extraction can be performed with a small amount of electric power, and the extraction liquid receiving cup after extraction is not irradiated with electromagnetic waves. It is not drinkable and the cup is too hot to hold.
[0054]
It is also safe for the human body to take out measures during extraction or to prevent removal.
[0055]
Thus, an advantageous effect is obtained that anyone can uniformly extract beverages safely, reliably and inexpensively.
[Brief description of the drawings]
FIG. 1 is a plan view of a beverage extraction device (a) according to Embodiment 1 of the present invention, and FIG. 2 is a side sectional view thereof. FIG. 2 is a perspective view thereof. FIG. 5 is a perspective view of the beverage extractor according to the second embodiment of the present invention. FIG. 6 is a perspective view of the beverage extractor according to the third embodiment of the present invention. ] Flowchart explaining its operation [FIG. 8] Illustration of conventional extraction method [Explanation of symbols]
3 Housing 5 Machine room 7 Extraction chamber 9 Extraction receiving cup chamber 11 Door 13 Magnetron 17 First electromagnetic shield 23 Extraction cup 25 Second opening 29 First opening 31 Extraction liquid receiving cup 41 Second electromagnetic shield 33 Base 35 Load sensor 43 Functional filter 45 Extraction material 47 Extract liquid

Claims (7)

A machine chamber having an electromagnetic wave generator for heating at least an object to be heated by electromagnetic waves, an extraction chamber having a first opening below, an extract receiving cup chamber located below the extraction chamber, and at least the extraction A housing having an integral door spanning the chamber and the extract receiving cup chamber;
A functional filter that does not transmit moisture at room temperature but transmits moisture at a temperature in the vicinity of the boiling point of water is attached, and a second opening that matches the first opening below the extraction chamber is provided to allow the extraction liquid to drip. An extraction cup having
An extract receiving cup disposed in the extract receiving cup chamber and receiving an extract dropped from the second opening of the extracting cup through the first opening of the extracting chamber;
An electromagnetic shield that surrounds the electromagnetic wave generator, the extraction chamber, and at least a portion of the door that covers the extraction chamber;
The extraction cup containing the extraction material and the extract in the functional filter is installed in the extraction chamber and heated in the electromagnetic shield by the electromagnetic wave generated from the electromagnetic wave generator, and the temperature of the extract is increased. The extraction liquid passes through the functional filter and drops through the second and first openings so that the extraction liquid drops into the extraction liquid receiving cup disposed in the extraction liquid receiving cup chamber, and the door is opened. When the beverage is extracted, the operation of the electromagnetic wave generator is stopped. 2. The beverage extraction according to claim 1, wherein a plurality of sets of extraction cups and extraction liquid receiving cups can be accommodated in positions corresponding to each other in the upper and lower directions in the extraction chamber section and the extraction liquid receiving cup chamber section, respectively. vessel. The beverage extraction device according to claim 1 or 2, wherein at least the hand of the extraction liquid receiving cup chamber portion of the door of the housing cannot be inserted therein. 3. The electromagnetic shield according to claim 1, further comprising a second electromagnetic shield that surrounds the extract receiving cup chamber and at least a portion of the door that covers the extract receiving cup chamber. The beverage extraction device described in 1. The beverage extraction device according to any one of claims 1 to 4, further comprising a load sensor for measuring a load of the extract receiving cup, and detecting that the extract has entered the extract receiving cup. The beverage extraction device according to any one of claims 1 to 5, wherein the electromagnetic wave generator does not operate when the extract receiving cup corresponding to the extracting cup is not disposed in the extract receiving cup chamber. The beverage extraction device according to claim 5 or 6, wherein the beverage extraction device is displayed so that the door is not opened or locked so as not to open until the weight sensor detects that the extraction is completed.

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