JPS61280816A - Beverage extractor - 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 FIELD OF INDUSTRIAL APPLICATION The present invention relates to a beverage extractor such as a coffee brewer for general household use.

Conventional technology This type of beverage brewer boils water in a water container, senses the temperature of the water, opens a heating circuit, and then operates a lever to supply hot water. In the equipment, if the water is not supplied immediately after it has been boiled, the water temperature will drop and the ingredients such as coffee cannot be extracted sufficiently, and as a result, the temperature of the finished coffee liquid will be low and tasteless. I could only get it.

In order to solve this problem, for example,
Please note that the device shown in Publication No. 4 has been proposed.

As shown in FIGS. 5 and 6, a heater 2 is installed near the lower end of the water container 1, and a valve 4 is provided at the hot water inlet 3 located at the bottom of the water container 1. It consisted of an elastic temperature sensing plate in the shape of an inverted spring.

Problems to be Solved by the Invention In such a conventional configuration, the water in the water container 1 is heated by the heater 2, and when the water temperature reaches a predetermined temperature or higher, the valve 4 is reversed to open the hot water supply port 3. Hot water automatically drips from the hot water supply port 3 into the filter case 6 below.
Since the valve 4 constituting the elastic temperature sensing plate is located inside the water container 1, there is a problem that it easily deteriorates and its characteristics change, and the power supply circuit for the heater 2 and the opening and closing of the valve 4 are performed separately. Because of this, there was a problem that the heating heater 2 would reach a 90% boiling state or that the heating heater 2 would be cut off while the water temperature was low and the valve 9 would not open. Furthermore, due to variations in water temperature detection depending on the installation position of the valve 4 in the water container 1 and variations in the temperature of the valve 4 itself, the water temperature had to be set low, and the hot water supply temperature also varied between the containers. . Therefore, the conditions for delicious coffee extraction are ``boiling high-temperature water from the beginning to sufficiently swell the coffee powder for a short period of time (3 to 30 minutes).
4 minutes) was not satisfactory.

The present invention solves these problems by automatically supplying high-temperature hot water that has always been boiled, without malfunctions, with reliable operation, and without the steam generated during boiling. is used to swell the coffee powder and keep the container warm, promoting further swelling of the coffee powder, effectively extracting the active ingredients of coffee, and improving the heat retention effect of the extracted drinking liquid. This prevents the temperature of the coffee liquid from dropping and reduces changes in taste and aroma, allowing for the extraction of a more delicious coffee liquid.Furthermore, by supplying hot water at boiling water temperature, chlorine, carbon dioxide, and To provide a beverage extractor such as a coffee boiler that is more effective by promoting the volatilization of cancerous substances such as trihalomethane, making it possible to produce "delicious water" and extracting only beverage components. purpose.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention includes a filter case that houses raw materials such as coffee powder, a water container that has a heating element, and a water container that heats and boils the water in the water container. a steam port that guides the steam generated by the steam port, a steam sensing element that senses the steam from the steam port, and a hot water supply valve that supplies water from the water container to the filter case in conjunction with the movement of the steam sensing element;
It is equipped with a cup for receiving the extraction liquid over the filter case, and a steam path for guiding the steam generated in the water container to the filter case or a beverage extraction container such as a cup.

Function: With this configuration, hot water supply to the coffee grounds is simplified by automatic hot water supply linked to stable boiling detection from the initial stage of boiling, and further improves the extraction efficiency of ingredients by promoting the swelling action of the coffee grounds by steam. It is said that the secret method for brewing delicious coffee is to heat the coffee grounds with boiling water from the beginning to fully swell the coffee powder for a short period of time (
In addition, since the hot water supplied is boiling water, it is possible to fully satisfy the condition that the extraction is completed within 3 to 4 minutes), and since the hot water supplied is boiling water, it is possible to eliminate the presence of defective components such as calcium chloride, carbon dioxide, and trihalomethane in the water. It can be expected to have a volatilizing effect and an effect of eradicating germs, and as a result, it can produce hot water that produces ``tasty water.''

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. First, an embodiment shown in FIG. 1 will be described.

That is, in the figure, 11 is a main body, and this main body 11 includes a base 12, a container section 13 above it, and this container section 13.
and a pillar 14 that connects the side surfaces of the base 12. Furthermore, the main body 11 has a substantially U-shaped storage section 16 surrounded by the main body 11 with its right side cut open. Reference numeral 16 denotes a water container attached above the container part 13, which has a heating element 17 and a hot water supply valve 18 at its bottom, a water inlet 19 at its upper part, and a lid 20 attached to the water inlet 19.
is deposited. Reference numeral 21 denotes a substantially T-shaped steam port provided on the side wall surface of the water container 16 above the specified water level, and either one of the ports is communicated with the inside of the water container 16 via a switching valve 22 provided at a branch point in the middle. There is.

The hot water supply valve 18 is attached so that a valve body 24 attached to a valve stem 23 that can be raised and lowered is always closed by a valve spring 26, and when the valve stem 23 rises against the force of the valve spring 26, the valve opens. The water in the water container 16 is led to the pouring port 27 in the upper part of the storage part 16 via the hot water supply pipe 26.

28 is located below the pouring port 27, and a cup 29
The filter case is placed on the upper surface of the filter case, has an extraction port 3o formed in the lower end surface, and houses a filter 31 inside.

Reference numeral 32 denotes a case lid that covers the upper surface of the filter case 28 and has an opening hole 33 for guiding hot water from the spout 27 to the coffee powder. The cup 29 on which the filter case 28 is placed can be freely attached to the storage section 15, and when the cup 29 is attached to the storage section 16, the bottom surface of the cup 29 is attached to the cup placement section 34 provided on the base 12. It is heated and kept warm from below by a heat-retaining heater 35 and a thermostat 36 that controls the heat-retaining heater 36.

Reference numeral 37 denotes a substantially cylindrical steam sensing tube that protrudes from the upper surface of the column 14 on the steam port 21 side of the water container 16 and is arranged in parallel with the water container 16, and has several opening holes 38 formed in the upper end surface and side surface. , and one open end of the steam port 21 is connected to its upper end via a switching valve 22. 39 is a vapor sensing element disposed above the inside of the vapor sensing tube 37;
At normal temperatures (at room temperature), this vapor sensing element 39 is easily deformed into close contact under the spring force of the bias spring 4o disposed below, and returns to its original state after being memorized at a certain temperature below 100°C. The coil spring is made of a shape memory alloy such as Ti-Ni or Cu that expands with restoring force. This extension operation of the steam sensing element 39 is transmitted to one end of a rotatable valve lever 42 located below by a sliding rod 41 that can be raised and lowered on the inner surface of the steam sensing tube 37 .

43 is the lower part of the steam sensing tube 37, the lower end peripheral portion is fixed,
When the valve lever 42, which airtightly isolates the inside of the steam sensing tube 37 and the inside of the main body 11 with a vertically movable waterproof gasket that airtightly holds the sliding rod 41 inside, rotates,
This valve lever 42 opens a power supply switch 44, which is a normally closed contact that cuts off the power to the heating element 17, and opens the hot water supply valve 18 by pushing up the valve stem 23. This state is controlled by a spring-biased locking lever 45. It is designed to be retained.

A steam pipe 46 is connected to the other open end of the steam port 21 via the switching valve 22, and this steam pipe 46 penetrates inside the container part 13 and is guided to the storage part 15 side, and the opening 47 is located on the front side wall of the filter case 28. Reference numeral 48 denotes an inlet 4 facing the opening 47.
9, and is integrated with the filter case 28 by elastic engagement or ultrasonic bonding so as to cover the lower part of the filter case 28, and has a communication hole 50a to the filter case 28 outward. and has an inward cup 29
It has a communication hole 50b to the side and communicates with both the extraction container (filter case 28 and cup 29) through inner communication holes 50a and 50b.

Reference numerals 51 and 52 are a power button and a stop button that are provided at the top of the support column 14 and are self-resetting. When the power button 61 is pushed down, it is locked by the locking plate 53 and stops, and at the same time, the power switch 54 is closed at the lower end. , the lock is released by the stop button 52, and the stop button 6
2 functions to release the locked state of the valve lever 42, and closes the hot water supply valve 18 and the power supply switch 44.

Figure 2 shows the electrical circuit diagram, 81.62 is 1o
This is a power supply terminal connected to the power supply of the OV, and a power switch 64 is connected to one power supply terminal 61, and a series circuit of a heat insulation heater 36 and a thermostat 36, and a power supply switch 44 which is a normally closed contact point are connected. A series circuit of the heating element 17, a safety thermostat 65 for preventing premature burning, and a temperature fuse 56 is connected.

Next, the operation of the above embodiment will be explained. First, the filter case 28 contains coffee powder and the filter 31.
is placed on the cup 29 and also placed on the cup placement section 34 of the storage section 16. At this time, the inlet 49 of the nine steam rings 48 attached to the filter case 31 is positioned opposite to the opening 47 of the steam pipe 4θ guided to the storage section 15. Note that this positional regulation is performed, for example, from the container portion 13 or base 12 to the filter case 28 or cup 29.
This is done by forming position regulating ribs, etc.

Next, water is poured into the water container 16, the lid body 2o is placed on it, and the switching valve 2
2 is set on the steam pipe 46 side and the power button 51 is pressed down to operate, the ρ heating element 17 for boiling water and the heat-retaining heater 35 are energized. The water in the water container 16 is heated by the heating element 1
7, the temperature rises, and at around 100℃, steam is just generated on the surface of the water, but as the heating progresses further and reaches the boiling point of 100℃, it turns into steam, and from then on the steam continues to flow. It starts to occur. When the steam pressure increases, it is discharged from the steam port 21 at the top of the water container 16, and is guided to the opening 4γ of the steam pipe 46 provided in the storage section 15 by the setting of the switching valve 22. This opening 47
The steam from the filter case 28 is guided to the steam ring 48 through the adjacent inlet 49, and heats the filter case 28 itself and the coffee powder stored in the filter case 28 from the outside.

Further, a part of the steam enters the filter case 28 through the communication hole Boa, directly contacts the coffee powder from above through the rib wall 57, and steams the coffee powder. Therefore, the coffee powder is swollen with a sufficient steaming effect due to the high temperature and heat capacity of the steam, and the coffee components are swollen to a state where they can be easily extracted by subsequent hot water supply.

In addition, when heating the filter case 28, for example, if coffee is extracted using the filter case 2 days while it is still cold, the coffee grounds will be cooled by the filter case 28, so the water supply temperature must be increased. It is possible to solve the problem that coffee does not easily swell or the extracted coffee liquid is cooled in the filter case 28 and tastes bad. Further, a part of the steam guided to the steam ring 48 is transferred to the cup 2 through the communication hole 50b.
9 and warm the cup 29.

Next, when the switching valve 22 is operated to direct the steam to the steam sensing tube 37, the steam hits the steam sensing element 39 through the upper opening hole 38 with force. The vapor sensing element 39, which is quickly heated by the vapor, causes a rapid temperature rise from the surrounding atmospheric temperature to 100'C, and the compressed coil spring-shaped shape memory alloy expands. That movement is naturally caused by the bias spring 40.
Since the sliding rod 41 is pushed down against the pressure, the valve lever 42 rotates counterclockwise. When this valve lever 42 rotates, the valve stem 23 is pushed up to open the hot water supply valve 18, and the boiling water in the boiling water container 16 is pumped through the hot water supply pipe 26 to the pouring port for a short time (set to 3 to 4 minutes). Sprinkle water from 27 and drip. Then, this dripping hot water is poured evenly onto the coffee grounds through the opening hole 33 of the case lid 32, but at this time, the coffee grounds have already been warmed by the steam and have swelled sufficiently, so as soon as the hot water supply starts, Coffee components are efficiently extracted. In addition, the extracted coffee liquid is passed through a filter 31 from the lower extraction port 30 to the cup 2.
9, and is kept warm by the warming heater 36 at a temperature suitable for drinking.

In this case, the filter case 28 and cup 29, which are the extraction containers, are heated by the steam, and the temperature of the coffee liquid once extracted does not drop, and the taste of the extracted coffee does not change and become unpalatable. Therefore, the hot water that is poured into the coffee is supplied from the beginning with high-temperature hot water that has already been boiled to fully swell the coffee powder and complete the extraction in a short time (3 to 4 minutes), creating delicious coffee extraction conditions. This makes it possible to obtain a rich and fragrant coffee liquid that cannot be obtained using conventional methods. In addition, the steaming action of the coffee powder by steam before hot water supply improves the sufficient swelling effect of the coffee powder and further enhances the extraction effect. Furthermore, the heating of the extraction container 28.29 by steam prevents the extraction temperature and the temperature of the extracted coffee liquid from decreasing due to the container 28.29, prevents a decrease in extraction efficiency and deterioration of the taste of the coffee liquid, and makes it more delicious. Coffee can be obtained stably.

On the other hand, when the valve lever 42 is rotated, the power supply switch 44 is opened simultaneously with the opening of the hot water supply valve 18 to stop energizing the heating element 17 and stop heating the inside of the water container 16. Heating is stopped after boiling by opening the water supply valve 18 to prevent the heating element 17 from burning the water after the water in the water container 16 has been completely supplied. The opening of the hot water supply valve 18 and the power supply switch 44 is held by the locking lever 46 after the valve lever 42 is rotated.

Also, an extraction vessel 28 with a switching valve 22 and a steam pipe 46.
29 side, the boiling time in the water container 16 is set longer than when the steam is directly guided to the steam sensing element 39, the power supply switch 39 is opened, and the electricity to the heating element 1γ is stopped. This boiling effect is something that can be done freely.
By promoting the volatilization of chlorine, carbon dioxide, and trihalomethane, which is a carcinogen, which causes ``mold odor'' and ``scaly odor'', it is possible to produce ``delicious water'', and as a result, coffee and other beverage ingredients are removed from the water. It is possible to effectively extract only the beverage components without being affected by defective components, and furthermore, the accelerated heating after boiling has the effect of eradicating germs in the water, making it possible to supply boiling water to people with weak bodies such as the elderly and babies. It becomes possible to use the liquid for purposes other than coffee liquid, such as coffee and milk.

On the other hand, the expanded shape-memory alloy that is the vapor sensing element 39 is air-cooled because no vapor is discharged due to the power being turned off to the heating element 17. The shape memory alloy, whose temperature has been lowered by this air cooling, loses its restoring force to the elongated state after being memorized, and is therefore pushed back to its initial compressed, close contact state by the bias spring 4o. After the shape memory alloy is stretched, the time until it is pushed back again by the bias spring 40 is usually set to be a short time until the completion of hot water supply in the water container 16. After use, when the stop button 62 is pressed down, the power button 51fD- and the valve lever 42 are unlocked, and the power supply switch 44 is closed, but the power switch 54 is opened, so the heating element 17 and the heat insulating heater are closed. 35 is not energized, and at the same time, the hot water supply valve 18 is closed.

In this way, the beverage extractor of this embodiment includes a filter case 28 that accommodates raw materials such as coffee powder, a water container 16 that has a heating element 17, and a steam generator that generates steam when the water in this water container 16 is heated and boiled. a steam port 21 to guide the steam, a steam sensing element 39 that senses steam from the steam port 21, and a hot water supply valve 18 that supplies water from the water container 16 to the filter case 28 in conjunction with the movement of the steam sensing element 39. , a cup 29 for receiving the extract from the filter case 28, and a cup 29 for receiving the extract liquid from the filter case 28, and a cup 29 for transferring the steam generated in the water container 16 to the filter case 2.
8 Also, a steam path leading to the side of a beverage extraction container such as a cup 29 (
Switching valve 22. Steam pipe 46. Because it is configured with a steam ring 48), it is possible to sufficiently steam and inflate the coffee powder with steam before hot water is supplied, and coffee components can be extracted quickly and efficiently as soon as hot water starts being supplied. . Therefore, the conditions considered to be the secret method for extracting delicious coffee can be satisfied by the configuration which further enhances the swelling effect of coffee powder, and a rich and fragrant coffee liquid can be extracted.

In addition, boiling heating in the water container 16 by supplying boiling water, along with adjusting the boiling time by operating the steam path switching valve 22, can cause moldy or chlorinated odors in the water and cause cancer. It is possible to remove substances such as trihalomethane and trichlorethylene by accelerating their volatilization.
It can be supplied as delicious water, and these defective ingredients will not be mixed into the extracted beverage.

In addition, the germ-eradicating effect of boiling heating makes it possible to supply boiling water to people with weak bodies and to use it for milk, etc.

Furthermore, the heating of the extraction container 28, 29 by steam prevents the temperature of the raw materials and extraction from decreasing due to the container, thereby realizing stable and effective extraction conditions at all times, and making it possible to drink a delicious extract without degrading the taste of the extract. becomes possible.

Yet another cup of steam? Direct heating in step 9 improves the heat retention effect of the extracted coffee liquid, etc., so it is possible to reduce the capacity of the heat retention heater 35, which is located below and has poor heating efficiency, and also to eliminate the arrangement. The configuration can be simplified and downsized.

In addition, since the steam generated in the water container 16 is used to supply the steam to the extraction containers 28 and 29, there is no need to provide a separate heater to generate this steam, and the structure is simple and inexpensive. The configuration in which the user can operate the switching valve 22 from the outside allows the user to freely select the steam heating time to the extraction container 28, 29 side, thereby widening its usability. Furthermore, in this embodiment, since a shape memory alloy is used as the vapor sensing element 39, wiring parts are not required, and sensing and operation can be performed at the same time. The configuration is also simplified. Moreover, since hot water is automatically supplied in conjunction with the movement of the steam sensing element 39, the operation can be simplified.

FIG. 3 and FIG. 4 show another embodiment of the present invention, and this embodiment shows the steam pipe 46 in the above embodiment.
The opening 47 is arranged to open at the upper part of the storage part 15, and a steam ring 72, which replaces the steam ring 48 in the above-mentioned embodiment, is installed and arranged on the inner upper surface of the case lid 32. 3.2 has the inflow lower 3 facing the opening A1, and the steam ring 72 has the filter case 32.
A communicating hole 74 is formed therein. Also, in the steam ring 72,
As shown in FIG. 4, a shielding rib 76 is formed to prevent the force of steam entering from the opening 71 from being guided directly into the filter case 32. This shielding rib 76 prevents steam pressure from directly entering the filter case 28, and once the steam pressure is decelerated, the coffee powder below is steamed softly. The steam heated in the container 16 enters the filter case 28 with force and blows up coffee powder.
Do not release coffee powder outside the case 28 and stain the container.
This has the effect that it is possible to eliminate the problem that coffee liquid is not sufficiently extracted due to a decrease in the volume of coffee powder or unevenness. Communication hole 4
9 and the ribbed walls 57 of the filter case 28 have a similar effect and are vapor pressure damping means. The other embodiment described above does not have a steam guide path to the cup 29, but other effects are the same as those of the first embodiment.

Incidentally, in the above two embodiments, the steam is guided to the extraction container side before the start of hot water supply, but this is not limited to this, and the structure may be such that the steam is guided and steamed simultaneously with the hot water supply.
In addition, a thermistor, thermostat, etc. may be used instead of the vapor sensing element 39, a timer element may be added to the switching valve 22, a foamed member may be used as a damping means for vapor pressure, etc. Of course, changes may be made as appropriate without departing from the gist of the invention.

Effects of the Invention As described above, according to the present invention, the hot water to be supplied must be boiled, and the hot water can not only be supplied at a higher temperature than the initial stage, but also have a steaming action using steam. Since the swelling effect of the material to be extracted can be enhanced for extraction, the coffee powder is sufficiently swollen, the effective ingredients can be efficiently extracted, and a highly fragrant beverage liquid can be obtained. Moreover, the hot water supply operation can be performed automatically and there is no erroneous operation, thus improving operability. Furthermore, the use of boiling water produces delicious water by volatilizing and removing harmful components such as chlorine, carbon dioxide, and trihalomethanos contained in the water, and by eradicating germs. The extractable material is obtained.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a beverage extractor showing one embodiment of the present invention, FIG. 2 is an electric circuit diagram of the same extractor, and FIG. 3 is a schematic diagram of a beverage extractor showing another embodiment of the present invention. FIG. 4 is a partial sectional view of the same extractor, FIG. 5 is a sectional view showing a conventional beverage extractor, and FIG. 6 is a sectional view of the main part thereof. 16...Water container, 17...Heating element, 1
8...Hot water valve, 21...Steam port, 39
...Vapor sensing element, 28...Filter case, 29...Power, 7', 22...
...Switching valve, 46...Steam pipe, 48...
...Steam ring. Figure 2 Figure 3 Figure 2? Figure 4 I Figure 5 Figure 6

Claims (4)

[Claims] (1) A filter case that accommodates raw materials such as coffee powder, a water container with a heating element, a steam port that guides the steam generated when the water in the water container is heated and boiled, and a steam port that directs the steam generated from the water container. a steam sensing element that senses steam, a hot water supply valve that supplies water from the water container to the filter case in conjunction with the movement of the steam sensing element, a cup that receives the extracted liquid from the filter case, and a cup that receives the extracted liquid from the filter case; and a steam path that guides the vapor to the filter case or a beverage extraction container such as a cup. (2) The beverage extractor according to claim 1, wherein the steam path is configured to lead to both the filter case and the cup. (3) The beverage extractor according to claim 1, further comprising damping means for slowing down and guiding the steam pressure when the steam path is guided to the filter case. (4) The beverage extractor according to claim 1, wherein the steam sensing means is constructed of a shape memory alloy that is activated by steam.