JP2017086834A - Beverage extraction device and a filter suitable for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage extraction device which can control an extraction time or timing in an extraction device for extracting coffee or tea.SOLUTION: A beverage extraction device 31 includes: memory means for memorizing a drive speed and drive timing of a piston member; and control means for controlling a drive state of piston drive means 36 based on the information of the memory means. This control means controls the piston drive means and sucks the extraction material supplied to an upper container 32 into a lower container 33 so as to allow an extraction of a preferred state based on the information of the memory means.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a beverage extraction device for extracting coffee, black tea, and other beverages, and a filter of the device. In particular, the present invention relates to a beverage extraction apparatus and a filter suitable for the apparatus, which can easily control a favorite extraction time, speed, and the like in an apparatus for pouring tea and black tea.

  Conventionally, it is known that the taste of the extraction method changes depending on the difference in the filter, the temperature of the hot water, the way of pouring, and the extraction time. For this reason, the extraction method is made more delicious through the manual operation regardless of the apparatus that performs only uniformly.

  Therefore, the present inventors, among beverage extraction devices, by suction through a filter from an espresso machine that supplies pressure to hot water from the upstream side and pushes it out, or from a container containing tea beans and hot water such as coffee beans and tea. We compared and studied beverage extraction devices of the type to extract.

  For example, in the case of an espresso machine that supplies and extrudes hot water from the upstream side, the pressure applied to the hot water from the upstream side is very high (for example, about 9 atmospheres). In (patent document 1), it is set to 0.2% to 1%. For this reason, since a high pressure must always be set, a restriction is added to a favorite extraction mode, and the range of the extraction mode is narrowed.

  On the other hand, what is shown in Patent Document 2 discloses an apparatus for extracting a beverage by suction from an upper container. A characteristic of this apparatus is that it is a filter that can treat the extracted soybeans and tea leaves, and a filter of the type that rolls out paper on a paper is disclosed. In addition, regarding extraction, with regard to the preferred extraction state, there is no disclosure of any technique for changing the extraction state in accordance with the koji or tea leaf to be extracted.

  In the present invention, in these extraction apparatuses, fine operations such as hot water temperature, steaming method, extraction speed, etc. cannot be performed according to preference, such as by roasting or brewing the extraction material, or by ally It was. The amount of hot water could be adjusted at best with only a uniform operation.

Japanese Patent No. 4712114 JP-A-7-289436

Problems to be solved by the invention

  As described above, the present invention allows fine-tuned operations such as hot water temperature, steaming, extraction timing, extraction speed, etc., depending on taste, such as by roasting and brewing the extraction material, or by drinking. At the same time, you can register the controls for these various ways of drinking, select the preferences later, and operate them. It is an object of the present invention to provide an extraction material filter capable of shortening the washing time.

Means for solving the problem

The beverage extraction apparatus according to the present invention includes an upper container having an open lower end for holding and holding an extraction material, a lower container having an open upper end, and a filter for the extraction material interposed between the upper container and the lower container. Become
The lower container is a beverage extraction device provided with a piston member that is slid up and down by a piston driving means in the lower container, and a discharge port for discharging the extract at a position where the piston member is pushed down. ,
The beverage extraction device is provided with storage means for storing the drive speed and drive timing of the piston member, and control means for controlling the drive state of the piston drive means based on the information of the storage means. Thus, the piston drive means is controlled so that the extraction material supplied to the upper container can be sucked into the lower container and extracted into a desired extraction state based on the information in the storage means.

  According to a second aspect of the present invention, the beverage extraction device includes a hot water supply unit that supplies hot water to the upper container by driving the hot water supply driving means, and the control means supplies the hot water supply to a desired hot water supply state based on information in the storage means. It is something that can be done.

  Further, the beverage extraction device is provided with a communication means that can receive information from an external terminal device when hot water supply information from the hot water supply unit and drive information of the piston member are stored in the storage means so that favorite extraction information can be registered. It is a thing.

  Further, as a filter suitable for the beverage extraction apparatus according to the present invention, the main part of the filter for extracting coffee or black tea is made of metal, and at least this filter has a hole through which the extract is passed from the filter surface. A core filter perforated so that the total area of the openings is 3% to 30% of the area of the bottom surface of the filter, and at least one metal screen in a mesh shape with an opening size of 20 μm to 100 μm on the top surface of the core filter Are integrally provided.

  Further, as claimed in claim 5, when the thickness of the core filter is 100 μm or less, a reinforcing member having a loophole of a structure such as a reinforcing honeycomb is further laminated on the lower layer side of the core filter. is there.

Effect of the invention

  By adopting the suction method in the extraction method of the beverage extraction device, it is easy to control the steaming time, suction timing, and suction speed. In addition, the filter also has a very fine metal screen on the top and a relatively large perforation area on the bottom (for example, 3% to 30% of the surface area of the filter), making it easier to suck and extract the desired extraction mode. It was set as the design suitable for the beverage extraction device which made it easy to select.

  The conceptual explanatory drawing of the drink extraction apparatus used by this invention.   The external appearance perspective explanatory drawing of the drink extraction apparatus used by this invention.   Side surface explanatory drawing of the drink extraction apparatus shown in FIG.   Front explanatory drawing of the drink extraction apparatus shown in FIG.   Cross-sectional explanatory drawing of the upper container of the drink extraction apparatus of the Example of this invention.   Explanatory drawing of the filter of the drink extraction apparatus of the Example of this invention.   Explanatory drawing of the core filter of the drink extraction apparatus of the Example of this invention.

  Hereinafter, the beverage extraction apparatus 1 according to the present invention will be described based on a conceptual explanatory diagram shown in FIG. 1. An upper container 2 having an open lower end for holding an extraction material and a lower container 3 having an open upper end are provided. The upper container 2 and the lower container 3 are further overlapped with each other, and the extraction material filter 4 interposed between the upper container 2 and the lower container 3 is steamed by the filter 4, and the lower container 3 will be described later. The piston member 5 is pulled down by suction.

  That is, the lower container 3 is provided with the piston member 5 that is slid up and down by the piston driving means 6 in the lower container 3 and a discharge port 7 that discharges the extract at a position where the piston member 5 is pushed down. The beverage is poured into a cup 40 or the like prepared outside (see FIGS. 2 to 4).

  Further, the beverage extraction device 1 includes a storage unit 8 for storing the driving speed and driving timing of the piston member 5 and a control unit 9 for controlling the driving state of the piston driving unit 6 based on the information in the storage unit 8. The control means 9 controls the piston drive means 6 so that the extraction material supplied to the upper container 2 is sucked into the lower container 3 and extracted to the desired extraction state based on the information in the storage means 8. It is something that can be done. Reference numeral 15 denotes an operation unit, which can store a plurality of extraction processing statuses in the operation unit 15 and can reproduce the extraction operation of the operation unit later. The operation unit can control the oil supply temperature of hot water, the oil supply amount, the suction timing, the suction speed, and the like by the piston member.

  In addition, hot water such as coffee and tea may be poured directly into the upper container 2 by hand, but in the embodiment of the present invention, the hot water stored in the hot water supply unit 11 drives the hot water supply drive means, A necessary amount of hot water having a necessary temperature may be supplied. Hot water in the hot water supply section is poured into the upper container 2 from the hot water supply port 12.

  Further, the beverage extraction device 1 is provided with a communication means 14 capable of receiving information from an external terminal device (not shown) when the hot water supply information from the hot water supply section 11 and the drive information of the piston member are stored in the storage means 8. , You can register your favorite extraction information. The communication means with the terminal device may be wired, but using a wireless or wired network such as a WiFi (registered trademark of the WiFi Alliance) network, Bluetooth (registered trademark of Bluetooth SIC, Corporation), a carrier, or the like. Also good.

  On the other hand, the filter 4 used in the beverage extraction device 1 of the present invention is composed of a metal filter, and a hole through which the extract is passed from the surface of the filter 4 has a total area of the opening portions of the holes. And a core filter perforated in 3% to 30% of the area, and a mesh-shaped metal screen having an opening size of 20 μm to 100 μm square are integrally provided on the upper surface of the core filter.

  When the core filter is 100 μm or less, it is desirable that a reinforcing member having a through hole such as a reinforcing honeycomb is laminated on the lower layer side of the core filter.

  For example, as in the embodiment shown in FIG. 6, the filter 34 is laminated with a mesh-like metal screen 52 on the upper surface of the core filter 51 and a reinforcing member 53 having a through hole such as a reinforcing honeycomb in the lower portion. Has been.

  Explaining the state of being laminated and bonded, the metal screen 52 is provided with a fixed frame 58 on the periphery (circumferential shape), and a convex depression is formed at the center so that the core filter 51 can enter. Has been processed. The fixed frame is provided with a hole 59 into which the resin enters when the periphery described later is hardened with resin.

  In addition, a reinforcing member 53 having a through hole such as a reinforcing honeycomb is positioned and laminated at a lower portion of the core filter 51, and a fixing frame 56 is provided around the reinforcing member 53 having a hole (circumferential shape). As with the metal screen 52, a hole 57 into which the resin enters is provided, but this hole 57 is a long hole so that it matches the hole of the hole 59 of the metal screen 52 even if it is slightly shifted. It has become.

  As shown in the sectional view of FIG. 6, the fixed frame 58 on the circumference of the metal screen 52 and the fixed frame of the reinforcing member 53 are configured so that the fixed frame 58 is larger, and when the periphery is hardened with the resin 54, The reinforcing member is fixed so as to be wrapped.

  The holes of the core filter 51 are configured so that a large number of holes are concentrated at the center. The reason for this is that the holes are concentrated in the central part where the extractors for tea and black tea tend to gather in the center. The area of the hole of the core filter 51 is drilled in a range of 3% to 30% of the area of the bottom surface of the filter.

  Next, an embodiment applied to an actual apparatus will be described with reference to FIGS. 2 to 4, the beverage extraction apparatus 31 shown in FIGS. 2 to 4 is provided with an upper container 32 and a lower container 33 for sucking in the lower part of the casing 30 on the front side. A beverage provided with a piston member (not shown) that slides up and down by 36 and a discharge port 37 for discharging the extract at a position where the piston member is pushed down is a cup prepared outside as described above. 40 or the like.

  Inside the housing 30, a hot water supply unit capable of supplying 8 liters of hot water is built in the upper part, and 95 ° C. hot water can be supplied from the hot water supply port 42. 41 is provided with a lid for replenishing water.

  The beverage extraction device 31 is provided with storage means for storing the drive speed, drive timing, etc. of the piston member, and control means for controlling the drive state of the piston drive means 36 based on the information in the storage means. By this control means, the piston driving means 36 is controlled so that the extraction material supplied to the upper container 32 can be sucked into the lower container 33 and extracted into a desired extraction state based on the information in the storage means. Yes, all of the storage means and control means are built in the housing 30.

  A hot water supply button 45 a for executing hot water supply, an operation lever 45 b for driving the piston driving means 36, and the like serving as an operation unit are provided. The moving speed of the piston member is also changed by the inclination angle by the angle of the operation lever 45b, and fine control can be performed early or late. 45c is a hot water temperature setting knob for turning the knob to set the temperature of the hot water. Reference numeral 44 denotes a display unit that displays the temperature of hot water and the time of the operation unit.

  Then, control of these operations, that is, the set temperature of the hot water by the hot water setting knob 45c, the amount of hot water by the hot water supply button 45a, the operation waiting time of the operation lever 45b and the suction speed by the operation lever, and the suction speed are extracted. The state can be controlled.

  These extraction states are stored in the storage unit 8. Reference numeral 43 denotes a function button, which is a button for storing and reproducing each extraction state. As a result, a favorite extraction operation can be easily selected.

  In the above embodiment, the filter 4 (34) of the extraction material interposed between the upper container 2 (32) and the lower container 3 (33) is a cup-shaped upper container as shown in FIG. 32, and is removed from the beverage extraction device 31 each time extraction is completed and can be washed.

  As shown in FIG. 7, the core filter has a large number of holes, but the holes are concentrated in the center, and the total area of the holes is 3% to 30% with respect to the flat area. Desirably, holes are provided in the area. In this embodiment, the hole diameter at the center is set to about 0.4 mm, the outermost part is set to be about 0.1 mm, and the opening diameter is set to gradually decrease from the center to the outer part. ing. These hole diameters are preferably set in the range of 0.1 mm to 0.7 mm.

  In the embodiment of the beverage extraction apparatus configured as described above, the filter 52 is provided with the reinforcing member 53 having a through hole as shown in FIG. 6, but the core filter 51 is thicker (over 100 μm). If so, it is not always necessary. If it is relatively thin (100 μm or less), it is better to provide a reinforcing member 53 having a through hole, and it is composed of two reinforcing members with the addition of another one except the fixed frame 56. May be. In order to prevent clogging, it is desirable that the core filter be thin and have a reinforcing member. Further, by providing a metal screen having a mesh shape of 20 μm to 100 μm square on the upper part of the core filter 51, it is possible to provide a clear soot with no turbidity.

  The beverage extraction device of the present invention configured as described above adopts a method of sucking from the upper container into which hot water and extraction material are put, so that the area of the filter perforation hole can be set large, hot water supply temperature, hot water supply Since the timing and speed of suction can be finely controlled from time to time, it can be extracted in various extraction modes, and can be stored by storage means for storing the state of these operation units, so that the state can be easily reproduced. An extraction device can be provided, which becomes a very useful device in industries such as coffee and tea, and can contribute to the development of the industry.

DESCRIPTION OF SYMBOLS 1, 31 ... Beverage extraction apparatus 2, 32 ... Upper container 3, 33 ... Lower container 4, 34 ... Filter 5, 35 ... Piston member 6, 36 ... Piston drive means 7 37 ... Discharge port 8 ... Storage means 9 ... Control means 10 ... Power source 11, 41 ... Hot water supply part 12, 42 ... Hot water supply port 13 ... Hot water supply drive means 14 ...・ Communication means 51: Core filter 52 ... Metal screen 53 ... Reinforcing member with loophole 54 ... Resin frame

Claims (5)

An upper container having an open lower end for holding an extraction material; a lower container having an open upper end; and a filter of the extraction material interposed between the upper container and the lower container,
The lower container is a beverage extraction device provided with a piston member that is slid up and down by a piston driving means in the lower container, and a discharge port for discharging the extract at a position where the piston member is pushed down. ,
Further, the beverage extraction device is provided with storage means for storing the drive speed and drive timing of the piston member, and control means for controlling the drive state of the piston drive means based on the information of the storage means. ,
The control means controls the piston driving means so that the extraction material supplied to the upper container can be sucked into the lower container and extracted into a desired extraction state based on information in the storage means. Beverage extraction device.   The beverage extraction device has a hot water supply unit that supplies hot water to the upper container by driving hot water supply drive means, and the control means can supply hot water to a favorite hot water state based on information in the storage means. The beverage extraction apparatus according to claim 1, wherein:   The beverage extraction device is provided with communication means capable of receiving information from an external terminal device when storing hot water supply information from the hot water supply unit and driving information of the piston member in the storage means. The beverage extraction device according to claim 1 or 2. In metallic filters used in beverage extraction devices that extract coffee and black tea,
At least the filter includes a core filter in which holes for allowing the extract to pass from the filter surface are drilled so that the total area of the openings of the holes is 3% to 30% of the area of the bottom surface of the filter, A filter suitable for a beverage extraction apparatus, wherein a mesh-shaped metal screen having an opening size of 20 μm to 100 μm square is integrally provided on an upper surface of a core filter.   5. The beverage extraction device according to claim 4, wherein when the core filter is 100 μm or less, a reinforcing member having a through hole such as a reinforcing honeycomb is further laminated on a lower layer side of the core filter. filter.

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