JPH0636776B2 - Beverage extractor - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an improvement of a beverage extraction device which is a component of a beverage supply device for extracting beverages from various beverage ingredients such as Japanese tea and coffee. Is.

(Background of the Invention) In a so-called beverage supply device that extracts and supplies beverages from raw materials of various beverages such as Japanese tea, coffee, black tea, and oolong tea, conventionally, in addition to the purpose of generally economically supplying beverages. In particular, in a beverage supply device of the type that controls the amount of hot water while watching the amount of beverage that comes out in the cup, and the user can supply an arbitrary amount of beverage as he or she likes, the amount of hot water supplied is integrated and fixed. Every time the amount of hot water is supplied, the raw material for extracting the beverage is replaced.

This is because the beverage extraction mechanism of the conventional beverage supply device is disclosed in Japanese Examined Patent Publication No. 30-3070, No. 51-36660, and No. 55-3.
No. 3328, No. 56-5523, No. 60-27527
Just as you can strain tea with your hands everyday, as you do in the No. issue, put the raw material into a filter shaped like a so-called tea strainer, and supply hot water from the top to filter the raw material. This is because the beverage is extracted in this manner, that is, when the beverage is extracted from the raw material in this way, the amount of raw material corresponding to one extraction is thin because the extraction time of the beverage is short. Since only a beverage can be obtained, for example, a large amount of raw material corresponding to 10 times of beverage supply is put into the filter at once, and the raw material is replaced every time the beverage is supplied 10 times.

In this way, when extracting and providing a beverage from the raw material without exchanging the raw material with a new one each time the beverage is supplied, after providing the beverage at a predetermined constant number of times of providing the beverage or the amount of the provided beverage. , Beverages immediately after exchanging the raw materials, beverages that are much richer than the average are extracted, and by the time reaching a certain number of beverages provided and the amount provided, a beverage that is considerably thinner than the average is extracted, etc. The strength of the beverage is not constant every time the beverage is provided, and the beverage provided is too thick, or is provided as a watery beverage such as simple colored hot water, which is not preferable.

Also, in the case of a tea strainer-shaped extraction container, when the extraction residue is discarded, the extraction container is turned upside down and the extraction residue in the container is discarded. There is also a problem that some of the extracted residue remains.

Therefore, each time a beverage is provided, the raw material for extracting the beverage is supplied from the raw material supply device to the extraction container in a required fixed amount, and mixed with the hot water supplied from the hot water supply device in the extraction container. If it is possible to reliably realize the operation of discarding the extraction dregs from the extraction container and discharging it into the box after a certain period of time with a mechanism with a simple structure as a series of cycles, it is always possible to obtain stable quality with constant beverage components. Since a beverage can be provided, it is economical to realize a beverage supply device that performs such a series of operations with a simple mechanism.
It has been a problem for the beverage supply device.

(Object of the Invention) A first object of the present invention is to solve the above-mentioned problems and to provide a beverage extractor capable of extracting a beverage from a raw material at a consistently stable quality economically with an extremely simple structure. That is.

A second object of the present invention is to provide a beverage extraction device that can efficiently extract a beverage from a raw material.

(Characteristics of the invention) In order to achieve the above object, the present invention relates to a beverage extraction device for infiltrating hot water into a raw material to extract a beverage, wherein both ends are in contact with two points separated by a predetermined distance on a straight line. As a generatrix, the main surface is a surface of rotation formed by rotating the generatrix about the straight line as an axis, and the extraction container having an opening opening upward, and the extraction container A rotation shaft that is rotatably supported coaxially with the axis of the rotation surface, a filter attached to a cutout portion of the container wall at one end of the extraction container, and the extraction container by rotation of the extraction container. A scraper fixed so as to slide on at least the bottom inner surface of the container wall, and an extractor that rotationally drives the extractor container in a direction in which the filter moves to the lowest position at the shortest distance during beverage supply and extraction of the extract residue. A container driving means is provided, whereby the extracted beverage and the extracted residue are separated, the beverage is supplied and the extracted residue is discharged by an extremely simple rotation operation of rotating the extraction container once around the rotation axis. It is characterized by doing so.

The present invention also includes a stirring blade that is rotatably supported inside the extraction container by a rotation shaft that is coaxial with the rotation shaft of the extraction container, and a stirring blade drive means that rotationally drives the stirring blade during the beverage extraction. Therefore, when the beverage is extracted, the hot water is stirred by the stirring blade in the extraction container.

(Embodiment of the Invention) FIG. 1 is a front external view of a beverage extraction device 1 according to an embodiment of the present invention.

As shown in FIG. 1, the beverage extraction device 1 of the present invention is composed of an extraction container 2, a funnel 3, and an extraction residue discard box 4.

In the beverage extraction device 1 of the present invention, as an example, FIG.
In the extraction container 2 having a shape shown in Fig. 2, that is, a shape in which a circular surface at both ends is bisected into semicircles, a fixed amount of Japanese tea, coffee, measured by a raw material supply device (described later), Beverages such as black tea and oolong tea are mixed with hot water measured by a hot water supply device (described later) to extract the beverage, and then the extraction container 2 around the rotary shaft supporting the extraction container 2 By making one rotation, the extracted beverage and the extracted dregs are separated, the extracted beverage is supplied to the cup 5 (Fig. 1) through the funnel 3, and the extracted dregs are discarded in the box 4 (the As shown in FIG. 1), a series of beverage extraction operations are performed.

The raw material is supplied to the extraction container 2 from the guide tube 6 of the raw material supply device, and the hot water is supplied to the extraction container 2 from the tube 7 of the hot water supply device.

The extraction container 2 of the beverage extraction device 1 according to one embodiment of the present invention is
As shown in FIG. 2 (a), the two points B and C, which are both separated by a predetermined distance on the straight line a and C, whose both ends are in contact with each other, are used as bus lines. 1 around the straight line
The rotation surface formed by rotating 80 degrees, that is, the semicircular flat surfaces 11 and 12 which are the rotation surfaces of the lines D and F, and the columnar surface 13 which is the rotation surface of the line E are the main container walls, and face upward. It has the opening part 14 which opens.

A filter 15 for separating the extracted beverage and the extracted residue is attached to a part of the pillar surface 13 which is the bottom surface of the extraction container 2.

As shown as an example in FIG. 2 (b), the filter 15 is provided in a structure such that no convex portion is formed on the inner bottom surface of the extraction container 2.

Further, as shown in FIG. 2 (c), the extraction container 2 is attached to a hollow rotary shaft 16 as a support point of the extraction container 2 coaxial with the straight line a (FIG. 2a), and is rotated. Axis 16
Is connected to power (motor M1 in this embodiment, which will be described later) for rotating the extraction container 2 via a coupler (not shown) or the like.

Further, inside the extraction container 2, as shown in FIG. 2 (c), a stirring blade 18 attached to a rotating shaft 17 and a scraper fixed to a fixed shaft 19 rotatably supporting the extraction container 2. 20 are provided. The rotary shaft 17 is inserted into the hollow rotary shaft 16, and the other end thereof is connected to power for rotating the stirring blade 18 (motor M2 in this embodiment, which will be described later).

As shown in FIG. 3, the funnel 3 has a structure in which the bottom surface is inclined, and collects the beverages extracted in the extraction container 2 and separated by the filter 15 and separated through the hole 21 to the cup 5 (first Beverage is supplied to (Fig. 1).

Further, as shown in FIG. 4, a filter 22 is attached to the bottom of the extraction and discard box 4, and further, as shown in FIG. Since a plate material such as a punch panel that can be drained is used, the water content of the extracted residue collected in the box 4 is discarded.
After passing through the filter 22 and the top plate 23, they are collected in the water pan 24 and evaporated. Therefore, the extracted residues collected in the box 4 will not be moldy and will not rot and will be sanitary.

First, the configuration and operation of the entire beverage supply device according to the present invention will be described.

FIG. 5 is a front external view of the beverage supply device. The beverage supply device is composed of the beverage extraction device 1, the raw material supply device 31 and the hot water supply device 41.

The raw material supply device 31 is a device that sends the required amount of the raw material of the beverage to be extracted to the beverage extraction device 1, and the hopper 32.
The raw material stored in the crushing unit 33 is crushed by the crushing unit 33, and the crushing unit 3 is crushed by the centrifugal force of a rotary blade (not shown) of the crushing unit 33.
Through the guide cylinder 6 fixed to 3, the finely pulverized raw material is supplied to the brewing container 2 of the beverage brewing apparatus 1 in a constant required amount.

The reason for crushing the raw material before extraction is to improve the extraction efficiency, save the amount of raw material used, and shorten the extraction time.However, when using a raw material that has already been powdered, such as matcha. Does not require the crushing mechanism of the crushing unit 33,
A propeller or the like is used instead of the rotary blade because only centrifugal force is required to send the raw material through the guide tube 6.

Since the amount of the raw material supplied from the raw material supply device 31 is proportional to the operating time of the motor 34, by keeping the operating time of the motor 34 constant, a constant amount of the raw material can be delivered.

The hot water supply device 41 is a device that sends to the extraction container 2 of the beverage extraction device 1 the amount of hot water necessary for extracting a beverage from the raw material supplied from the raw material supply device 31 to the extraction container 2 of the beverage extraction device 1. is there.

The main tank 43 incorporates a heater 43 and a temperature controller 44, and always stores the hot water boiled by itself at a constant temperature. The hot water in the main tank 42 flows into the sub tank 46, which is attached to the lower portion of the main tank 42 via the tube 45 and has a certain capacity. When the water levels of the tubes 47 connected to the main tank 42 and the sub tank 46 coincide with each other at the level h in FIG. 5 due to the material of the balanced siphon, the flow of hot water into the sub tank 46 is stopped, and Fill up. When the sub tank 46 is filled with hot water, the compressed air supply device 50 connected to the sub tank 46 via the tube 47, the joint 48, and the tube 49 is operated by the control of the control circuit of the beverage supply device to operate the sub tank 46. Compressed air is sent inside, and the hot water in the sub tank 46 is sent out to the brewing container 2 of the beverage brewing apparatus 1 through the tube 51, the joint 52, and the tube 7.

As shown in FIG. 5, the sub-tank 46 is mounted so that its upper surface is lower than the bottom surface of the main tank 42. Therefore, as long as the main tank 42 has hot water, the sub-tank 46 must be filled with hot water. There is.

FIG. 6 is a sectional view of the sub tank 46, and the sub tank 46 is composed of a sub tank main body 53 and a lid 54. An O-ring 55 is attached to the sub tank main body 53 so as to face the lid 54, and airtightness is maintained by tightening the lid 54.

As shown in FIG. 6, the sub tank 46 includes a check valve 56. When the hot water in the main tank 42 flows into the sub tank 46, the ball valve 57 is pushed by the water pressure and floats up, so that the check valve 56 is released.

In the diameter direction of the stopper 58 screwed into the check valve 56,
Since the strip-shaped stopper 59 is attached, the ball valve 57 does not jump out into the sub tank main body 53. When the compressed air supply device 50 operates and compressed air flows into the sub tank 46, the ball valve 57 is pressed against the mortar-shaped valve seat 60 of the check valve 56.
The check valve 56 is closed so that the hot water in the sub tank 46 does not flow back to the main tank 42.

The on-off valve 61 (FIG. 5) is closed so that the air pressure does not drop during the operation of the compressed air supply device 50, and is opened at other times. This is because the sub-tank 46 is exhausted when the hot water in the main tank 42 flows into the sub-tank 46, so that the sub-tank 46 must be released to the atmospheric pressure.

The amount of hot water supplied to the extraction container 2 through the tube 7 is
Since it is almost proportional to the operating time of the compressed air supplier 50, by keeping the operating time of the compressed air supplier 50 constant, a constant amount of hot water can be constantly supplied to the brewing container 2 of the beverage brewing apparatus 1. Furthermore, when the amount of hot water to be supplied is changed according to the amount of beverage required by the user, for example, the operating time of the compressed air supply device 50 can be changed in several stages, and The amount of hot water can be supplied.

The heater 62 is for keeping the hot water in the sub tank 46 warm.

Next, the extraction operation of the beverage extraction device 1, which is a feature of the present invention, will be described.

FIG. 7 is a diagram showing an extracting operation of the extracting container 2 of the beverage extracting device 1 according to the embodiment of the present invention.

FIG. 8 is an example of an electric circuit for controlling the beverage extracting device 1 according to the embodiment of the present invention.

In FIG. 7 (a), the raw material is supplied to the extraction container 2 from the guide tube 6 of the raw material supply device 31 (FIG. 5) and the hot water is supplied from the tube 7 of the hot water supply device 41 (FIG. 5), respectively. , Beverage extraction is started, but the beverage extraction device 1
First, the switch 63 (FIG. 8) is turned on to turn the stirring blade 18 on.
The motor M2 (Fig. 8) connected to is operated to stir the hot water with the stirring blade 18 as shown in Fig. 7 (b).

In FIG. 7 (c), the switch 63 is shut off to stop stirring, and the mixture is left as it is for a while to sufficiently extract the beverage, and the extraction residue is allowed to settle on the bottom of the extraction container 2.

Next, after a certain period of time, the switch 64 (FIG. 8) is turned on to turn on the motor M1 connected to the rotary shaft 16 of the extraction container 2.
(FIG. 8) is operated to slowly rotate the extraction container 2 and the cam 65 fixed to the rotary shaft 16 of the extraction container 2 as shown in FIG. 7 (d). At this time, the extracted beverage passes through the filter 15 and is collected in the funnel 3, and the cup 5 (fifth
(Figure) to start the outflow. At the same time as this operation, the extraction container 2
The extraction residue that has settled on the bottom of the scraper is scraped off by a scraper 20 fixed to a fixed shaft 19.

In FIG. 7 (e), the micro switch 66 and the cam 6
When it contacts with 5, the micro switch 66 is turned on. After that, the switch 64 is cut off. As shown in FIG. 8, since the micro switch 66 is connected in parallel with the switch 64, the rotation of the extraction container 2 continues even if the switch 64 is cut off.

The rotation of the extraction container 2 advances and the scraper 20 moves to the extraction container 2
When separated from the container wall, the extracted residue separates from the scraper 20 due to its own weight, and is discarded into the box 4.

When the rotation of the extraction container 3 further progresses and the micro switch 66 separates from the cam 65 in FIG. 7 (f), the micro switch 66 is cut off, the motor M1 is stopped, and the rotation of the extraction container 2 is stopped.

The stop position of the extraction container 2 becomes the same position as that of FIG. 7 (a) by the cam 65, and thereafter, the stop position of FIG. 7 (a) to (f).
This operation is performed as one cycle to perform the beverage extraction operation.

As described above, according to the beverage brewing apparatus 1 of the present invention, the beverage of stable quality is always sanitary by the extremely simple rotation operation of rotating the brewing container 2 once by the rotating shaft 16 by the power of the motor or the like. Can be extracted and supplied.

The shape of the extraction container 2 is not limited to that shown in FIG. 2 (a), but as shown in FIGS. 9 to 11, the generatrix of the surface of revolution has a combination of straight lines and arcs, a semicircle, a trapezoid, etc. The shape of the rotating body may be a convex line.

Further, the extraction container 2 does not have to be a rotating body of 180 degrees, and as shown in FIGS. 12 to 13, the rotation angle may be larger or smaller than 180 degrees.

Further, in the above-described embodiment, the rotary shaft 16 of the extraction container 2 connected to the power source is hollow, and the rotary shaft 17 connected to the power source for rotating the stirring blade 18 coaxially is provided in the hollow shaft. As shown in FIG. 14, the scraper 20 may be fixed, and the fixed shaft 19 supporting the extraction container 2 may be hollow, and the rotary shaft 17 of the stirring blade 18 may be coaxially passed through the fixed shaft 19.

(Effects of the Invention) As described above, according to the invention of claim 1, in a beverage extraction device for infiltrating hot water into a raw material to extract a beverage, both ends are in contact with two points separated by a predetermined distance on a straight line. A downward convex line as a generatrix, a main surface of the container wall is a rotation surface formed by rotating the generatrix about the straight line as an axis, and an extraction container having an opening opening upward, and the extraction A rotation shaft that rotatably supports the container coaxially with the axis of the rotation surface, a filter attached to a cutout portion of the container wall at one end of the extraction container, and the extraction by rotation of the extraction container. A scraper fixed so as to slide on at least the bottom inner surface of the container wall of the container, and at the time of beverage supply and discharge of brewed dregs, the filter is rotationally driven in the direction in which the filter moves to the lowermost position at the shortest distance. And a brewing container driving means for brewing the brewing container, and the brewing container is supplied and the brewing residue is discharged by a very simple rotation operation of rotating the brewing container once around the rotation axis. Therefore, it is possible to provide a beverage extraction device that extracts a beverage from a raw material always with stable quality economically with an extremely simple structure.

Further, according to the invention of claim 2, a stirring blade rotatably supported inside the extraction container by a rotation shaft coaxial with the rotation shaft of the extraction container, and stirring for rotationally driving the stirring blade in the previous period at the time of beverage extraction. A blade driving means is provided, so that at the time of beverage extraction, hot water is agitated by the agitating blades in the extraction container, so a beverage extraction device that efficiently extracts a beverage from a raw material with an extremely simple structure. Can be provided.

[Brief description of drawings]

FIG. 1 is a front external view of a beverage extracting apparatus according to an embodiment of the present invention, FIG. 2 (a) is a perspective view of a single extraction container according to an embodiment of the present invention, and FIG. 2 (b) is a filter thereof. 2 (c) is a perspective view of the extraction container assembly, FIG. 3 is a perspective view and a plan view of the funnel in one embodiment of the present invention, and FIG. 4 is an extraction in one embodiment of the present invention. FIG. 5 is a perspective view of a waste disposal box, FIG. 5 is a front external view of the entire beverage supply device including a beverage extraction device according to an embodiment of the present invention, and FIG. 6 is a sectional view of a sub tank of a hot water supply device used with the present invention. FIG. 7 is a diagram showing an extracting operation of one embodiment of the present invention, FIG. 8 is a circuit diagram of a motor control circuit in one embodiment of the present invention, and FIGS.
FIG. 3 is a front view and a side view showing another example of the extraction container unit according to the present invention, and FIG. 14 is a perspective view showing another example of the extraction container assembly according to the present invention. 1 ... Beverage extractor, 2 ... Extraction container, 3 ... Funnel, 4
…… Extraction waste disposal box, 11 to 13 …… Surface that forms the main container wall of the extraction container 2, 14 …… Opening part, 15 …… Filter, 16 to 17 …… Rotating shaft, 18 …… Stirring blade, 19
...... Fixed shaft, 20 ...... scraper, 63, 64 ...... switch, 65 ...... cam, 66 ...... micro switch, a ...
… Straight line, ro, ha …… point, d, ho, f …… line.

Claims (2)

[Claims] 1. A beverage extraction apparatus for injecting hot water into a raw material to extract a beverage, wherein a downward convex line whose both ends are in contact with two points separated by a predetermined distance on a straight line is a bus line, and the straight line is an axis of the straight line. As a main container wall a rotation surface formed by rotating a predetermined angle as, and an extraction container having an opening that opens upward, and the extraction container is rotatably supported coaxially with the axis of the rotation surface. A rotary shaft, a filter attached to a cutout portion of the container wall at one end of the extraction container, and fixed so as to slide on at least a bottom inner surface of the container wall of the extraction container due to rotation of the extraction container. And a brewing container driving means for driving the brewing container to rotate in a direction in which the filter moves to the lowermost position in the shortest distance when the beverage is supplied and the brewed cake is discharged. Extraction device. 2. A rotary shaft coaxial with the rotary shaft of the extraction container,
The beverage brewing apparatus according to claim 1, further comprising: a stirring blade rotatably supported inside the brewing container; and a stirring blade driving unit that rotationally drives the stirring blade during the beverage extraction.