JPH0649019B2 - Beverage extractor - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an improvement of a beverage extraction device that is one component of a beverage supply device that extracts beverages from various beverage ingredients such as Japanese tea and coffee. It is a thing.

(Background of the invention) From the raw materials of various beverages such as Japanese tea, coffee, black tea, and oolong tea, the beverage is extracted and supplied, in the so-called beverage supply device, conventionally, in addition to the purpose of generally supplying the beverage economically, In particular, in the 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 to obtain a fixed amount. Every time the 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 method is adopted in which 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 a large amount of raw material without replacing the raw material with a new one each time the beverage is supplied,
After providing the beverage at a predetermined fixed number of beverages or the amount of beverage provided, the beverage immediately after exchanging the raw material with a new one, a beverage that is much richer than the average is extracted, and also a certain number of beverages provided. By the time the beverage reaches the serving amount, beverages that are considerably thinner than the average are extracted, etc., the concentration of the beverage is not constant every time the beverage is served, and the beverage provided is too dark or simply colored. It will be provided as a watery drink like hot water, which is not preferable in any case.

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 amount as a single batch, and the beverage is extracted by mixing with the hot water supplied from the hot water supply device. If the operation of discharging the extraction dregs from the extraction container and discarding the extraction dregs into the box can be reliably realized by a mechanism of a simple structure as a series of cycles, it is possible to provide a beverage of stable quality that always contains certain beverage components. .

Furthermore, especially when Japanese tea is supplied, tea extracted by mixing the raw material already used once for extracting tea with hot water is more extracted than the case of extracting tea by mixing new raw material with hot water. However, it may be said to be delicious due to its astringency, and thus, in order to supply a beverage of good quality, depending on the characteristics of various teas, as a raw material that has already been extracted at least once. , If it is possible to extract a beverage by combining both new raw materials, for example, it is possible to supply a delicious beverage with the same fine-grained quality as a human hand, even though it is a fully automatic beverage supply device. Therefore, the realization of a beverage extraction device that enables such a complicated beverage extraction operation economically and efficiently with a simple and simple mechanism has been an issue.

In particular, as a rotary drive source for performing the beverage extraction operation,
In the prior application by the applicant of the present application, one using a plurality of geared motors is disclosed, but the geared motors are expensive, and reducing the number of used gears directly contributes to the cost reduction of the beverage extraction device. Therefore, simplification of the rotary drive source of the beverage brewing apparatus has been expected as a particularly important issue.

(Object of the invention) The object of the present invention is to solve the above-mentioned problems and to extract a beverage efficiently with a very simple structure and economically, always with stable and good quality, and in a short time. Moreover, it is an object of the present invention to provide a beverage brewing device capable of reducing the cost of the driving means.

(Characteristics of the invention) In order to achieve the above object, the present invention relates to a beverage extraction device in which hot water is infiltrated into a raw material to extract a beverage. The main surface of the container wall is a rotation surface formed by rotating the bus line as a generatrix about the straight line as an axis and the extraction container having an opening opening upward, and the extraction container A rotary shaft that is rotatably supported coaxially with the surface axis, a filter attached to a cutout portion of the container wall at one end of the extraction container, and a peripheral edge of the filter that is closely attached to the container wall of the extraction container. Then, a separator having a filter, which rotates and slides coaxially with the rotation axis of the extraction container inside the extraction container, and a selection drive means for selectively driving the extraction container and the separator by a common rotation drive source. And Provided, so as to extract the beverage while separating the new raw material and the raw material that has already extracted the beverage by the separator, by an extremely simple rotation operation of rotating the extraction container around the rotation axis, It is characterized in that the extracted beverage and the extracted residue are separated, the beverage is supplied and the extracted residue is discharged, and the number of rotary drive sources included in the drive means is reduced.

(Embodiment of the Invention) FIG. 2 is a front external view of a beverage extracting device 1 according to an embodiment of the present invention.

As shown in FIG. 2, 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, FIG.
A certain amount of Japanese tea measured by a raw material supply device (described later) is placed in an extraction container 2 having a shape shown in (a), that is, a shape in which a circular cylinder at both ends is bisected into semicircles. , Beverages such as coffee, 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 is rotated by the rotating shaft supporting the extraction container 2. By rotating 2, the extracted beverage and the extracted dregs are separated, the extracted beverage is supplied to the cup 5 (FIG. 2) through the funnel 3, and the extracted dregs are discarded in the box 4 (the second). As shown in FIG. 2), 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.

Extraction container 2 of beverage extraction device 1 according to an embodiment of the present invention
As shown in Fig. 3 (a), the two points B and C that are both separated by a predetermined distance on the straight line a, and the U-shaped lines D, E, and H (shown by dotted lines) whose both ends are in contact with , A plane of revolution formed by rotating the generatrix about the straight line a by 180 degrees, that is, planes of semicircle 11 and 12 which are planes of revolution of the lines d and f.
And the pillar surface 13 which is the rotation surface of the wire e as the main container wall,
It has an opening 14 that opens upward.

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. 3 (b), the filter 15 is provided in such a structure that a convex portion is not formed at a portion of the inner bottom surface of the extraction container 2 where the container wall is cut out.

As shown in FIG. 3 (c), the extraction container 2 has a hollow rotary shaft 16 and 1 which is coaxial with the straight line a (FIG. 3 (a)).
Attached to 7.

Inside the hollow rotating shafts 16 and 17, the separator shaft 1
8 penetrates the separator shaft 18 and the extraction container 2
The separator 19 is fixed so as to fit in the inside of the separator.

As shown in FIG. 1 (a), a spur gear 20 and a cam 27 are fixed to a hollow rotating shaft 16 attached to the extraction container 2, and a spur gear 28, cams 22, 23 and a separator are provided. A separator shaft 18 to which 19 is attached penetrates therethrough.

The spur gear 20 meshes with the spur gear 101 of the differential gear device 100, and the spur gear 28 meshes with the spur gear 102 of the differential gear device 100.

As shown in FIG. 1 (c), the differential gear device 100 includes spur gears 101, 102, bevel gears 103, 104, 105, stoppers 106, 107, 108, a shaft 109, and a spacer 110. ing. The spur gear 101 and the spur gear 102 are integrated with the bevel gear 103, and the bevel gears 103 and 104 mesh with the bevel gear 105. Spur gears 101, 102, bevel gears 103, 104
Is not fixed to the rotary shaft 25, but is positioned for engagement by the stoppers 106 and 107 and the spacer 110 fixed to the rotary shaft 25. The shaft 109 is fitted and fixed to the spacer 110. The bevel gear 105 is not fixed to the shaft 109, and is prevented from falling off the shaft 109 by the stopper 108.

The rotating shaft 25 is connected to the rotating shaft 29 of the motor 24 via the coupler 21. The rotation of the motor 24 is the spur gear 1
From 01 and 102, spur gears 20 and 28 that mesh with each other
Are transmitted to the rotary shaft 16 and the separator shaft 18 of the extraction container 2, respectively, but if one of the spur gears 101 and 102 is fixed by an external force, the fixed gear cannot rotate, while the gear that is free. Since it can rotate, it is possible to select which of the rotation shaft 16 and the separator shaft 18 of the extraction container 2 the rotation of the motor 24 is transmitted by this switching operation.

As shown in FIGS. 1 (a) and 1 (b), a fixing pin 111 for fixing the spur gears 101, 102 is formed in a U-shape.
An arm 113 provided with 112 is rotatably attached to a mounting plate 115 at a center point 114 thereof.
Is coupled so that the end on the side where the fixing pin 111 is implanted is pulled by the iron core 118 of the DC solenoid 117, while the end on the side where the fixing pin 112 is implanted is connected by the coil spring 116. It is connected to the mounting plate 115 so as to be always pulled.

As shown in FIG. 3 (d), the separator 19 includes a fixing plate 3
0, a filter 31, an elastic plate 32, and a pressing plate 33. The filter 31 is for separating the new raw material and the extraction residue from which the beverage has already been extracted once in the extraction container 2, and an elastic plate formed slightly larger than the fixed plate 30 and the pressing plate 33. Reference numeral 32 is for scraping off the extraction residue from the inner surface of the extraction container 2, and is adapted to slide in close contact with the inner surface of the extraction container 2 due to the elasticity of the material.

Since the fixed plate 30 and the pressing plate 33 are dimensioned so that a gap is opened between the fixed plate 30 and the pressing plate 33, only the peripheral edge of the elastic plate 32 is in close contact with the inner surface of the extraction container 2. There is.

As the material of the elastic plate 32, for example, a material such as silicone rubber that has heat resistance and is harmless to food hygiene is used. Further, as the material of the fixing plate 30 and the pressing plate 33, a material having heat resistance and harmless in food hygiene, and having hardness enough to firmly hold the filter 31 and the elastic plate 32 is used. To form.

As shown in FIG. 4 (a), the funnel 3 has a structure in which the bottom surface is inclined, and collects the beverages separated when extracted by the filter 15 of the extraction container 2 and The beverage is supplied to the cup 5 (FIG. 2) through the hole 34 shown in FIG.

Further, as shown in FIG. 5, a filter 35 is attached to the bottom of the extraction and discard box 4, and further, as shown in FIG. 6, a top plate 36 to which the extracted and discard box 4 is fixed is attached. Since a plate material such as punching metal that can be drained is used, the water content of the extraction residue discarded in the box 4 passes through the filter 35 and the top plate 36 and the water pan 37.
Are either collected and evaporated or discarded during cleaning.

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. 6 is a front external view of the beverage supply device. The beverage supply device is composed of the beverage extraction device 1, a raw material supply device 41, and a hot water supply device 51.

The raw material supply device 41 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 42.
The raw material stored in the crushing unit 4 is crushed in the crushing unit 43, and the crushing unit 4 is crushed by the centrifugal force of a rotary blade (not shown) of the crushing unit 43.
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 43,
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 41 is proportional to the operating time of the motor 44, by keeping the operating time of the motor 44 constant, a constant amount of the raw material can be delivered.

The hot water supply device 51 is a device that sends hot water necessary for extracting a beverage from the raw material supplied from the raw material supply device 41 to the extraction container 2 of the beverage extraction device 1 to the extraction container 2 of the beverage extraction device 1. .

The main tank 52 incorporates a heater 53 and a temperature controller 54, and always stores the boiled hot water at a constant temperature. The hot water of the main tank 52 flows into a sub tank 56 having a constant capacity, which is attached to the lower portion of the main tank 52 via a tube 55. Due to the principle of the balanced siphon, when the water levels of the tubes 57 connected to the main tank 52 and the sub tank 56 coincide with each other at the level h in FIG. 6, the hot water stops flowing into the sub tank 56, and Fill up. When the sub tank 56 is filled with hot water, the compressed air supplier 60 connected to the sub tank 56 via the tube 57, the joint 58, and the tube 59 is operated to send compressed air into the sub tank 56, The hot water is sent to the brewing container 2 of the beverage brewing apparatus 1 through the tube 61, the joint 62, and the tube 7.

As shown in FIG. 6, the sub tank 56 is mounted so that its upper surface is lower than the bottom surface of the main tank 52. Therefore, as long as the main tank 52 has hot water, the sub tank 56 must be filled with hot water. There is.

FIG. 7 is a sectional view of the sub tank 56, and the sub tank 56 is composed of a sub tank main body 63 and a lid 64. An O-ring 65 is attached to the sub-tank body 63 so as to face the lid 64, and the airtightness is maintained by tightening the lid 64.

As shown in FIG. 7, the sub tank 56 includes a check valve 66. When the hot water in the main tank 52 flows into the sub tank 56, the ball 67 is pushed by the water pressure and floats up, so that the check valve 66 is released.

In the diameter direction of the stopper 68 screwed into the check valve 66,
Since the strip-shaped stopper 69 is attached, the ball 67 does not jump out into the sub tank body 63. Further, when the compressed air supplier 60 operates and compressed air flows into the sub tank 56, the ball 67 is pressed against the mortar-shaped valve seat 70 of the check valve 66, so the check valve 66 is closed. Therefore, the hot water in the sub tank 56 does not flow back to the main tank 52.

The on-off valve 71 (FIG. 6) is closed so that the air pressure does not decrease during the operation of the compressed air supply device 60, and is opened at other times. This is because the sub tank 56 is exhausted when the hot water in the main tank 52 flows into the sub tank 56, and therefore the sub tank 56 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 proportional to the operating time of the compressed air supplier 60, by keeping the operating time of the compressed air supplier 60 constant, a constant amount of hot water can be constantly supplied to the brewing container 2 of the beverage brewing apparatus 1. If you want to change the amount of hot water according to the amount of beverage the user needs, for example,
It is also possible to supply an arbitrary amount of hot water by changing the operating time of the compressed air supply device 60 in several stages.

The heater 72 is for keeping the hot water in the sub tank 56 warm.

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

In order to perform the extraction operation, it is necessary to rotate the motor 24 in the forward / reverse direction, position the rotation, and switch the two rotation shafts of the extraction container 2 and the separator shaft 18 by the differential gear unit 100. .

Although there are various methods for performing normal rotation / reverse rotation of the motor 24, an embodiment using an AC reversible motor will be described here. Further, as a method for rotational positioning, an embodiment using a cam and a micro switch will be described. Although there are various methods for switching between the two rotary shafts by the differential gear device 100, an embodiment in which the DC solenoid 117 is used to fix the gear will be described here.

FIG. 8 is a connection diagram when the motor 24 is an AC reversible motor. When the switch S1 connected to one end of the AC power supply is turned on to the R terminal side, the motor rotation shaft 2
9 is in the right direction, that is, the motor 24 is rotated by the rotary shaft 2 of the motor.
When the switch S1 is turned to the L terminal side by rotating clockwise when viewed from the 9 side, the rotating shaft 29 rotates leftward.
By switching the switch S1, the rotation directions of the extraction container 2 and the separator 19 can be controlled.

Next, switching of the two rotary shafts of the rotary shaft 16 and the separator shaft 18 of the extraction container 2 by the differential gear device 100 will be described.

As shown in FIG. 1A, when the switch S6 connected to one end of the DC power source is released, the DC solenoid 117 is not energized. At this time, the iron core 118
Is not attracted to the DC solenoid 117, the arm 113
Is pulled by the coil spring 116, the arm 113 rotates counterclockwise about the center point 114, and the fixing pin 111 bites into the tooth groove of the spur gear 101 of the differential gear device 100, The gear 101 is fixed so as not to rotate.

When the motor 24 rotates in this state, the bevel gear 10 is rotated along with the rotation of the spacer 110 fitted to the rotating shaft 25.
5 rotates about the shaft 109, and at the same time, the bevel gear 10
Rotating shaft 25 together with shaft 109 while meshing with 3,104
Although the spur gear 101 is fixed and the spur gear 102 is not fixed in the state of FIG. 1 (a), the rotating shaft 25 is not rotated relative to the spur gear 101 and the bevel gear 103. Idling, the rotation of the motor 24 is not transmitted to the spur gear 20. Therefore, the rotary shaft 16 of the extraction container 2 does not rotate,
The extraction container 2 also does not rotate. However, the spur gear 102 is free, and the rotation of the motor 24 is transmitted to the bevel gear 104 via the bevel gear 105 to rotate the spur gear 102 integrated with the bevel gear 104. Is transmitted to the spur gear 28 to rotate the separator shaft 18, and the separator 19 fixed to the separator shaft 18 rotates.

On the other hand, as shown in FIG. 1 (b), the DC solenoid 117
When energized and energized, the DC solenoid 117
Wins the elastic force of the coil spring 116 and the iron core 118
When the arm 113 is rotated in the clockwise direction by suctioning, the fixing pin 112 causes the spur gear 1 of the differential gear device 100 to rotate.
No. 02 of the tooth gear is engaged and the spur gear 102 is fixed so as not to rotate.

At this time, contrary to the case described above with reference to FIG.
The rotation of the motor 24 is transmitted from the bevel gear 105 to the non-fixed bevel gear 103 in accordance with the rotation of the spacer 110 fixed to the rotating shaft 25, and the free spur gear 101 integrated with the bevel gear 103. Is rotated, the rotation of the motor 24 is transmitted to the spur gear 20, and the rotation shaft 16 of the extraction container 2 is rotated.
Rotates. However, since the spur gear 102 is fixed by the fixing pin 112, the separator shaft 18 does not rotate, so the separator 19 does not rotate.

One of the spur gears 101 and 102 as shown in FIGS. 1 (a) and (b) is fixed by the opening / closing operation of the switch S6, and accordingly, the rotation of the motor 24 causes the spur gears 28 and 20 to rotate. The state transmitted to is repeated.

Next, FIG. 9 and FIG. 10 are diagrams showing a beverage extraction operation by the extraction container 2 and the separator 19 of the beverage extraction device 1 according to an embodiment of the present invention, and FIG. The extraction operation for the second time and FIG. 10 show the extraction operation for the second time and thereafter.

First, the first extraction operation will be described with reference to FIG.

In FIG. 9, a certain amount of hot water is supplied from the hot water supply device 51 to the empty extraction container 2. Cam 22 and micro switch 8 at this time
The positional relationship of No. 1 is shown on the left side of the extraction container 2 in the figure.

At this time, the switch S6 is open, the DC solenoid 117 is not energized, and the fixing pin 1 of the arm 113 is
The spur gear 101 is fixed by 11.

In FIG. 9 ', the motor 24 is operated and the separator 19
Turn counterclockwise once to return to the original position. The positioning of the stop position is performed by the cam 22 and the micro switch 81. As the separator 19 rotates, the cam 22 also rotates, the micro switch 81 is turned on, and when the rotation continues and the cam 22 makes one revolution, the micro switch 81 is cut off and the state shown in FIG. 9 is obtained. Return.

That is, if it is detected that the micro switch 81 is once turned on and then shut off, and the motor 24 is stopped by the signal, the separator 19 can be rotated once and stopped at the original position.

FIG. 11 shows an example of a sequence for performing such control.

In FIG. 11 (1), when the switch S2 is turned on by the control of the control circuit (not shown) of the beverage extraction device 1,
The r _1a contact of the relay R1 is closed in FIG. 11 (2), and at the same time the r _1c contact is closed in FIG. 11 (8), the motor 24 starts rotating, and the separator 19 starts rotating. Fig. 11 (3)
Then, the set time of the time-delayed timer T1 which starts the operation by the r _1b contact of the relay R1 is longer than the time required from the start of the rotation of the motor 24 to the closing of the micro switch 81 by the cam 22. I'll do it. Therefore, when a 81-b contact of the micro switch 81 is closed, t ₁ -a contacts limit operation type timer T1 is always open. The subtraction counter C1 is set to 1.

When the rotation of the motor 24 advances and the micro switch 81 is closed by the cam 22, the 81-b contact of the micro switch 81 opens in FIG. 11 (4). Then t ₁ -a contacts limit operation type timer T1 is closed, but since 81-b contact of the micro switch 81 is already open, not energized in the count coil CC1 subtraction counters C1.
The rotation of the motor 24 further advances and the micro switch 81
When is released from the cam 22, the 81-b contact of the micro switch 81 is closed again in FIG. 11 (4). At this time,
Since t ₁ -a contacts limit operation type timer T1 is in the closed as one likes, is energized count coil CC1, Fig. 11
At (8), the r ₂ b contact of relay R2 opens and the motor 2
4 stops. At the same time, in FIG. 11 (5), the r ₂ a contact of the relay R2 is closed, so that the subtraction counter C
The reset coil RC1 of No. 1 is energized, and the subtraction counter C1 is restored. In FIG. 11 (6), when the switch S3 is turned on by the control of the control circuit (not shown), the above sequence returns to the initial state.

Next, in FIG. 9, a constant amount of the raw material 82 is supplied from the raw material supply device 41 to the extraction container 2. Since the raw material 82 is blocked by the filter 31 of the separator 19, it does not diffuse into the extraction container 2.

In FIG. 9, stirring is performed by rotating the separator 19 so as to shake it from side to side. Separator 19 at this time
Positioning is performed by the cam 23 and the micro switch 83.

First, the motor 24 is rotated to the right, and the separator 19
Shake to the right in FIG. At this time, the micro switch 8
3 is turned on by the cam 23. When the separator 19 is swung to the right by a predetermined angle, the rotation direction of the motor 24 is switched to the left, and the separator 19 is swung to the left in FIG. When the motor 24 rotates to the left, the micro switch 83 disengages from the cam 23 and returns to the state shown in FIG.

Here, it is detected that the micro switch 83 is disengaged from the cam 23, the motor 24 is again rotated to the right by the signal, and the separator 19 is shaken to the right.

The above operation is repeated and the stirring is ended in FIG.

Similarly, an example of a sequence for controlling such a stirring operation is shown in FIG.

The timed timer T2 sets the time for which the separator 19 is swung to the right in FIG. Subtractive counter C
2 is set to 1. The number of round trips of the separator 19 is set in the subtraction counter C3.

First, FIG. 11 is controlled by a control circuit (not shown).
When the switch S4 is turned on at (9), it is shown in FIG.
2) In closed r ₃ a contact of the relay R3, are energized to the R terminal of the motor 24, the motor 24 starts rotating in the right direction, the separator 19 starts swing to the right in Figure 9. When the right rotation of the motor 24 progresses, the micro switch 83 is turned on by the cam 23 as shown in FIG. 9 '. At this time, in FIG. 11 (13), the 83-a contact of the micro switch 83 is closed. Rotation of the motor 24 is further advanced, in was rotated to the right direction setting time of time limit operation type timer T2, FIG. 11 (12) opens t ₂ -b contacts of limit operation type timer T2, the motor 24 R terminal Is turned off. At the same time, close t ₂ -a contacts of limit operation type timer T2 of FIG. 11 (13) is energized to the L terminal of the motor 24, the rotation direction of the motor 24 is switched to the left rotation, the separator 19 is Figure 9 Start swinging to the left.

Closing is t ₂ -c contacts of limit operation type timer T2, since 83-b contact of the micro switch 83 is already open, the count coil CC of the subtraction counters C2 in FIG. 11 (14)
2 is not energized.

When the motor 24 rotates leftward, the micro switch 83 is disengaged from the cam 23, and the state shown in FIG.
The position is the same as that at the start of stirring shown in FIG. When the micro switch 83 is disengaged from the cam 23, the 83-a contact of the micro switch 83 is opened again in FIG. 11 (13),
The energization of the L terminal side of the motor 24 is cut off. At this time, the separator 19 makes one round trip.

At the same time, in FIG. 11 (17), the count coil CC3 of the subtraction counter C3 is energized, and the subtraction counter C3 is energized.
The set value of, that is, the number of times the separator 19 reciprocates is reduced by one.

Further, in FIG. 11 (14), the microswitch 83
The 83-b contact closes again. T _{2 of} timed timer T2 −
Since the c-contact has already been closed, the count coil CC2 of the subtraction counter C2 is energized. Along with that, the first
In Fig. 1 (11), the cc ₂ a contact of the subtraction counter C2 is opened, and the time-delayed timer T2 is restored.

In FIG. 11 (16), the cc ₂ b contact of the subtraction counter C2 is closed, and in FIG. 11 (15), the relay R4 is closed.
r ₄ a contact closed, power is supplied to the reset coil RC2 subtraction counters C2, subtractive counter C2 is restored.

When the subtraction counter C2 returns, the cc ₂ a contact of the subtraction counter C2 closes again in FIG. 11 (11),
The timed timer T2 is energized again. Fig. 11 (12)
Oite, since t ₂ -b contacts of limit operation type timer T2 is closed again when the time limit operation type timer T2 has returned, in Figure 9, beginning swings right separator 19 again,
The stirring operation described above is repeated.

When the separator 19 reciprocates the number of times of reciprocation set in the subtraction counter C3, the cc ₃ a contact of the subtraction counter C3 is closed in FIG. 11 (19), and then FIG. 11 (18).
In, closes r ₅ a contact of the relay R5, subtraction counters C3
Energizing the reset coil RC3 of the subtraction counter C
3 returns.

At the same time, in FIG. 11 (21), closes r ₅ c contact of the relay R5, is energized to a direct current solenoid 117, the fixing pin 112
The spur gear 102 is fixed with. Further, in FIG. 11 (22), the energization of the timed timer T3 is started. In the time-delayed timer T3, the rest time of the extraction container 2 is set so that the raw material is allowed to settle at the bottom of the extraction container 2 and the extraction is sufficiently performed in FIG.

Next, in FIG. 9, the extraction container 2 is rotated to the right, and the beverage is supplied to the cup 5 through the funnel 3 shown in FIG.

The rotation of the extraction container 2 to the right is stopped at a point where the separator 19 is separated from the inner surface of the extraction container 2 and the extraction residue 84 is extracted.
Do not fall.

After the beverage is supplied, the direction of rotation of the brewing container 2 is switched to the left, the position is returned to the position shown in FIG. 9 in FIG. 9, the DC solenoid 117 is de-energized, and the brewing operation is completed.

The rotation of the extraction container 2 is positioned by the spur gears 101, 2.
0 (FIG. 1) via the cam 27 and the micro switch 85.

First, when the motor 24 is rotated counterclockwise, the spur gear 10
The hollow shaft 16 rotates to the right in FIG. 9 by 1, 20 and the extraction container 2 starts to rotate to the right. At the same time, cam 2
7, the micro switch 85 is turned on. The rotation direction of the motor 24 is switched to the right direction when the separator 19 is barely separated from the inner surface of the extraction container 2, and the extraction container 2 is rotated to the left. As the extraction container 2 rotates counterclockwise, the micro switch 85 is disengaged from the cam 27. It is detected that the micro switch 85 is disengaged from the cam 27, the rotation of the motor 24 is stopped by the signal, the extraction container 2 is returned to the position shown in FIG.
The energization of 7 is cut off, and the extraction operation is completed.

Similarly, an example of a sequence for performing these controls is shown in FIG.

Here, the time-limited timer T4 is as shown in FIG.
The time for rotating the extraction container 2 to the right is set in advance. The subtraction counter C4 is set to 1.

In FIG. 11 (21), the r ₅ c contact of the relay R5 is closed,
The DC solenoid 117 is energized, and at the same time, as shown in FIG.
In 2), when the r ₅ d contact of the relay R5 is closed and the time-delaying timer T3 is energized, the stationary time of the extraction container 2 set in the time-delaying timer T3 elapses, and then FIG.
In (23), closes t ₃ -a contacts limit operation type timer T3. Then, in FIG. 11 (25), r ₆ a of relay R6
The contact is closed, and the timed timer T4 is energized.

At the same time, in FIG. 11 (26), closes r ₆ c contact of the relay R6, is energized to the L terminal of the motor 24, the motor 24 starts to rotate to the left. Along with this, in FIG. 9, the extraction container 2 starts to rotate to the right.

At the same time that the motor 24 starts rotating to the left, the micro switch 85 is turned on by the cam 27. At this time, the 85-a contact of the micro switch 85 is closed in FIG. 11 (27), and the micro switch 8 is closed in FIG. 11 (28).
The 85-b contact of 5 opens.

In FIG. 9, the extraction container 2 is a timer T4 of the timed operation type.
After rotating to the right time set, in FIG. 11 (26), opens t ₄ -b contacts limit operation type timer T4, the rotation of the motor 24 is stopped. At the same time, in FIG. 11 (27), closes t ₄ -a contacts limit operation type timer T4. Since the 85-a contact of the micro switch 85 is already closed, the R terminal of the motor 24 is energized and the motor 24 starts rotating to the right. Along with that, the extraction container 2 starts rotating to the left. As the extraction container 2 rotates counterclockwise, the micro switch 85 is disengaged from the cam 27 in FIG.
At this time, in FIG. 11 (27), the microswitch 8
The 85-a contact of No. 5 is opened again, the energization of the R terminal of the motor 24 is cut off, the rotation of the motor 24 is stopped, and the ninth
In the figure, the extraction container 2 returns to the position shown in FIG. 9 and the extraction operation ends.

Further, in FIG. 11 (28), the microswitch 85
The 85-b contact closes again. Timed timer T4 t ₄ −
Since the c contact is already closed, the count coil CC4 of the subtraction counter C4 is energized. Then, Fig. 11 (30)
, The cc ₄ a contact of the subtracting counter C4 is closed, and the first
In Fig. 1 (23), the r ₇ b contact of relay R7 opens, and
In Fig. 25, the timed timer T4 is restored. At the same time, in FIG. 11 (29), the r ₇ a contact of the relay R7 is closed and the reset coil RC4 of the subtraction counter C4 is energized,
The subtraction counter C4 is restored.

By the control of the control circuit (not shown), when the switch S5 is opened in FIG. 11 (19), the relay R5 is restored and the first
In FIG. 1 (21), the power supply to the DC solenoid 116 is cut off, and in FIG.
Is restored, the sequence shown in FIGS. 11 (9) to (30) returns to the initial state.

In the sequence shown in FIG. 11, the motor 24 is in the AC operation, while the DC solenoid 117 and the relay R are on the other hand.
1 to R7, the time-limited timers T1 to T4, and the subtraction counters C1 to C4 are all DC operations, so their common circuits are represented separately.

Next, the second and subsequent extraction operations will be described with reference to FIG.

FIG. 10 shows a state in which the first first extraction has been completed. The extraction residue 84 from which the beverage has been extracted once remains on the separator 19, and hot water is supplied from the hot water supply device 51 to the extraction container 2 in this state.

Next, in FIG. 10, when the separator 19 is rotated once, the extraction residue 84 is diffused in the hot water and the separator 19
To the right of.

Next, in FIG. 10, the raw material 82 is additionally supplied from the raw material supply device 41. The raw material 82 is the filter 3 of the separator 19.
Since it is blocked by 1, the beverage does not mix with the already extracted brew 84.

Further, in FIG. 10, the separator 19 is shaken to the left and right, and the raw material 82 and the extracted dregs 84 are respectively stirred in hot water.

In FIG. 10, the raw material 82 and the extraction dregs 84 are allowed to settle, and in order to perform the extraction sufficiently, they are left stationary for a while.

Next, in FIG. 10, the extraction container 2 is rotated clockwise,
Beverage is dispensed from funnel 3 into cup 5 (FIG. 2).

Since the brewing residue 84 is blocked by the filter 15 attached to the brewing container 2, it does not flow out together with the beverage.

In FIG. 10, when the separator 19 is at a position where it is barely separated from the inner surface of the extraction container 2 and the rotation of the extraction container 2 is stopped, the extraction residue 84 separates from the separator 19 due to its own weight and drops into the extraction residue disposal box 4. To do.

Then, the rotation direction of the extraction container 2 is switched to the left, and the first
In FIG. 0, the operation is stopped when returning to the same position as in FIG. 10, and the extraction operation is ended.

The raw material 82 additionally supplied later remains as the extraction residue 84 in the extraction container 2 in the same manner as when the first first extraction residue 84 is reused during the second extraction. , Will be reused during the next extraction.

The sequence for controlling the second and subsequent extraction operations is the sequence for controlling the first and first extraction operations.
It is the same as Fig. 1.

In this way, the amount of the raw material 82 can be reduced by reusing the extracted residue 84 obtained by extracting the beverage once for the extraction again, so that the raw material 82 can be saved. When extracting a beverage of the same strength, a new raw material 82
The extraction time can be shortened as compared with extracting the beverage only.

In the above description, the raw material 82 is supplied and the beverage is extracted each time the beverage extracting operation is performed, but the raw material 82 in FIG. 10 is not additionally supplied, that is, every two times. The raw material 82 is supplied so that the raw material 82 is supplied.
Can also be used twice to extract the beverage.

In the above description of the extraction operation, one separator 19 is provided inside the extraction container 2 so that the raw material 82 is used twice for extracting the beverage, respectively. As shown in FIG. 2, two independently rotating separators 19a and 19b are provided so as to closely slide on the inner surface of the extraction container 2, and the raw material 82 is supplied to 3
Beverages may be extracted one by one to efficiently and finely extract a high-quality beverage according to the characteristics of the raw material. The extraction operation in this case will be described below with reference to FIG. And explain.

In this case, as shown in FIG.
The separator shaft 18b of 9b is separated from the separator shaft 18a of the separator 19a.
b is housed in the hollow rotary shaft 17 of the extraction container 2 and is a motor 24 for rotating the extraction container 2 and the separator 19a.
It is rotated by a motor (not shown) other than the above.

Hot water is supplied to the extraction container 2. The position of the separator 19a is A, and the position of the separator 19b is B.

Move the separator 19b to the position of A, the separator 19a
To position B.

The raw material 82a is supplied to the extraction container 2.

The separators 19a and 19b are swung to the left and right to stir the hot water.

The extraction container 2 is stopped for a while.

The brewing container 2 is rotated to the position where the separator 19a is separated, and the beverage is supplied to the cup 5.

Reverse the direction of rotation of the extraction container 2 and stop at the original position.
The separator 19a is at the position B, and the separator 19b is at the position A. The extracted residue 84a of the raw material 82a is the separator 19b.
Remains above.

Hot water is supplied again while the extracted residue 84a remains.

The separator 19a is rotated to the position A, and the separator 19b is rotated to the position B.

The raw material 82b is supplied.

The separators 19a and 19b are shaken left and right to stir the hot water.

The extraction container 2 is stopped for a while.

The brewing container 2 is rotated to the position where the separator 19b is separated, and the beverage is supplied to the cup 5.

Reverse the direction of rotation of the extraction container 2 and stop at the original position.
The separator 19a is at the position A and the separator 19b is at the position B. Extracted residue 84a and extracted residue 84b of raw material 82b
Remains.

Hot water is supplied again in a state where the extraction residue 84a, 84b remains.

The separator 19b is rotated to the position B, and the separator 19a is rotated to the position A.

The raw material 82c is supplied.

The separators 19a and 19b are shaken left and right to stir the hot water.

The extraction container 2 is stopped for a while.

The brewing container 2 is rotated to the position where the separator 19a is separated, and the beverage is supplied to the cup 5.

The extraction residue 84a is discarded from the separator 19a by its own weight and dropped into the box 4.

Reverse the direction of rotation of the extraction container 2 and stop at the original position.
The separator 19a is at the position B, and the separator 19b is at the position A. Extracted residue 84b and extracted residue 84c of raw material 82c
Remain above the separators 19a and 19b, respectively.

After that, of the extraction operations of ~, ~ is repeated,
The extraction operation continues.

In the above, the raw material 82 is additionally supplied and the beverage is extracted each time the beverage extracting operation is performed, but the additional supply of the raw material 82 in FIG. 13 and FIG. 13 is not performed, that is, the raw material 8 is supplied every three times.
By supplying 2, the supplied raw material 82 can be reused for extracting the beverage exactly three times.

The shape of the extraction container 2 is not limited to that shown in FIG. 3 (a), but may be any other shape as shown in FIGS. 14 to 16. Further, the extraction container 2 does not have to have a semi-circular shape, but the fan-shaped angle can be freely set as shown in FIGS. 17 and 18.

Further, in the above description of the embodiment of the present invention, the rotation of the motor 24 is controlled by the rotation shaft 16 of the extraction container 2 and the separator shaft 18 (1
Although the method using the differential gear device 100 has been described as a means for selectively switching and transmitting to any one of 8a), the same purpose can be achieved by using a clutch mechanism instead of the differential gear device 100. it can. However, the method using the differential gear is more economical.

(Effects of the Invention) As described above, according to the present invention, in a beverage extraction device that infiltrates 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 As a generatrix, and a main surface of the container wall is a surface of revolution formed by rotating the generatrix about the straight line as an axis, and an extraction container having an opening opening upward, and the extraction container Coaxial with the axis of the rotation surface, a rotation shaft rotatably supported, a filter attached to a cutout portion of the container wall at one end of the extraction container, and a peripheral edge of the extraction container on the container wall. A separator having a filter, which closely rotates and slides coaxially with the rotation axis of the extraction container inside the extraction container, and a selective drive for selectively driving the extraction container and the separator by a common rotary drive source. Means and Therefore, the beverage is extracted while separating the new raw material and the raw material from which the beverage has already been extracted by the separator, and by the extremely simple rotation operation of rotating the extraction container around the rotation axis. Since the extracted beverage and the extracted dregs are separated, the beverage is supplied and the extracted dregs are discharged, and the number of rotary drive sources included in the drive means is reduced, the structure is extremely simple. It is possible to provide a beverage extraction device that can economically extract a beverage from a raw material always in a stable and good quality, efficiently in a short time, and can reduce the cost of a driving unit.

[Brief description of drawings]

FIG. 1 is a diagram showing a main part of a beverage extraction device which is an embodiment of the present invention, FIG. 2 is a front external view of a beverage extraction device which is an embodiment of the present invention, and FIG. 3 (a) is a book FIG. 3 (b) is an exploded view of the filter, FIG. 3 (c) is a perspective view of the extraction container assembly, and FIG. 3 is a perspective view of the extraction container in one embodiment of the invention.
(d) is an exploded view of the separator, FIG. 4 is a plan view and a perspective view of the funnel, FIG. 5 is a perspective view of the extraction and discarding box, and FIG. 6 shows a beverage extracting apparatus according to an embodiment of the present invention. FIG. 7 is a front external view of the whole beverage supply device as a component, FIG. 7 is a sectional view of a sub tank of a water heater used with an embodiment of the present invention,
FIG. 8 is a connection diagram of a motor for rotationally driving a brewing container and a separator of a beverage brewing apparatus which is an embodiment of the present invention, and FIG.
Drawing and Drawing 10 are figures showing the extraction operation of the drink extraction device which is one example of the present invention, and Drawing 11 is a figure showing the sequence which controls the extraction operation of the drink extraction device which is one example of the present invention, FIG. 12 is a perspective view of a brewing container assembly of a beverage brewing apparatus according to another embodiment of the present invention, and FIG. 13 is a diagram showing a brewing operation of a beverage brewing apparatus according to another embodiment of the present invention. ~
FIG. 18 is a front view and a side view showing another example of the single extraction container according to the present invention. 1 ... Beverage extractor, 2 ... Extraction container, 3 ... Funnel, 4
…… Extraction waste box, 11 to 13 …… Surface that forms the main container wall of the extraction container, 14 …… Opening part, 15 …… Filter, 16 ・ 17 …… Rotation axis of extraction container, 18 ・ 18a ・
18b ... separator shaft, 19 / 19a / 19b ... separator, 20 ... spur gear, 21 ... coupler, 22.2
3 ... Cam, 24 ... Motor, 25 ... Rotating shaft, 27 ...
… Cam, 28 …… Spur gear, 29 …… Motor rotation shaft, 3
0 ... Separator fixing plate, 31 ... Separator filter, 32 ... Separator elastic plate, 33 ... Separator pressing plate, 41 ... Raw material supply device, 51 ... Hot water supply device, 81 ... Micro switch, 82.82a.82b
・ 82c ... Raw material, 83 ... Micro switch, 84.
84a, 84b, 84c ... Extraction residue, 85 ... Micro switch, 100 ... Differential gear device, 101, 102
... Spur gears, 103, 104, 105 ... Bevel gears, 10
6, 107, 108 ... Stopper, 109 ... Shaft, 11
0 ... Spacer, 111, 112 ... Fixing pin, 113
...... Arm, 116 ...... Coil spring, 117 ...... DC solenoid, 118 ...... Iron core, C1 to C4 ...... Subtraction type counter, R1 to R7 ...... Relay, S1 to S6 ...... Switch, T1 to T4 ...... Time limit Operated timers, a ... straight line, lo ha ... point, ni ho ha ... line.

Claims (1)

[Claims] 1. A beverage extraction device for extracting hot water by infiltrating hot water into a raw material, 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 the extraction container as a main component, and an extraction container having an opening opening upward, and the extraction container being 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 a peripheral edge thereof closely contacts the container wall of the extraction container, and the extraction container inside the extraction container. Beverage brewing apparatus, comprising: a separator having a filter, which rotates and slides coaxially with the rotation axis of the above, and a selection drive means for selectively driving the extraction container and the separator by a common rotation drive source. .