JP2000271008A - Coffee maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extract optimal coffee of excellent taste and flavor by pouring hot water to coffee powder as if drawing a circle by moving a hot water spout at the same time with an X-axis direction and a Y-axis direction in the state of pouring hot water. SOLUTION: A belt driving motor 25 moves a driving block 14 in the direction of a Y-axis to move a hot water spout 11 in the direction of the Y-axis within the diameter size of a filter. A link driving motor 26 rotates a rotary link 27 to move a subordinate link 28 in the direction of the X-axis to move the spout 11 in the direction of the X-axis within the diameter size of the filter 10. A series of extracting process of coffee is controlled by a microcomputer to control the simultaneous movement in the directions of the X-axis and Y-axis of a hot-water pouring pipe 16, pouring hot water four times by four-dividing a required hot water quantity, the number of times of drawing a circle at the time of pouring hot water from the spout 11, a suspending time between each pouring of hot water and a period for steaming after finishing the last pouring in the state of drawing a circle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee maker for pouring coffee powder contained in a filter to extract coffee.

[0002]

2. Description of the Related Art As a material for pouring coffee powder into a filter and extracting coffee, there are a paper filter and a cloth filter as a material of the filter for storing coffee powder. Because it is extracted from one point, it is characterized by removing the astringency and producing an optimal coffee with taste and aroma.

However, the extraction method using a cloth filter cannot extract the optimum coffee as described above simply by pouring hot water near the center of the filter.

Therefore, when a filter made of cloth is used for a filter used in a coffee manufacturing apparatus as disclosed in Japanese Patent Application Laid-Open No. 9-28574, for example, it is necessary to sprinkle hot water into coffee powder at the time of pouring.

[0005]

However, in the above description, the filter is made of cloth. However, when pouring coffee powder stored in the filter made of cloth, the pouring procedure must be carefully considered. This is because it must not be done. In practice, even a paper filter has the same pouring procedure as a cloth filter.

[0006] In general, when pouring coffee powder stored in a cloth filter, it is known that pouring water is wound around the filter.

According to this method, the spout of a kettle or the like can be rolled by hand into a filter for accommodating coffee powder placed on a coffee cup, and pouring is performed. The basic pouring procedure is as follows. Even if he knew, the pouring range and route differed depending on the user, and it was not always possible to extract optimal coffee in terms of both taste and aroma.

[0008] The present invention always extracts the optimal coffee with excellent taste and aroma, and in particular, can extract such coffee continuously.

[0009]

SUMMARY OF THE INVENTION The present invention firstly provides a hot water tank, a pouring port for pouring hot water from the hot water tank, a filter set below the pouring port for containing coffee powder, and a filter under the filter. And a base on which a cup for receiving the extracted coffee is placed, and the pouring port is simultaneously moved in the X-axis direction and the Y-axis direction in a pouring state, so that the shape of the pouring water is “ Pour into coffee powder as you draw.

[0010] Secondly, the present invention provides a water stop valve provided between the hot water storage tank and the pouring port, a pouring button for opening the water stop valve, and a letter "NO" for the pouring water. A swing mechanism of a pouring spout for performing hot water, and a delay device that delays the operation of the swing mechanism for a predetermined time, after operating the pouring button, the delay device delays the opening of the water stop valve by a predetermined time by operating the delay device. The swing mechanism is operated.

Thirdly, in the present invention, the rocking mechanism is such that a pouring opening is disposed at a center portion of the filter in an initial state at the start of pouring.

Fourth, the present invention provides a hot water storage tank, a pouring port for pouring hot water from the hot water storage tank, a filter set below the pouring port for containing coffee powder, and a filter provided below the filter for extraction. A table for receiving a cup for receiving coffee, wherein the hot water to be poured from the pouring port is intermittently poured into the coffee powder as in the shape of a letter “no”. Is completed by the pouring process of No., the "no" pouring is performed one time at the first pouring, two times at the second pouring, and two at the third pouring. The number of times was 0.5, and the number of times was 4 at the time of the fourth pouring.

Fifth, in the present invention, the required amount of pouring for one cup is about 15% at the time of the first pouring, about 30% at the time of the second pouring, and about 30% at the time of the third pouring. At the time of 40% and the fourth pouring, about 15% of pouring is performed.

Sixth, the present invention provides a method in which the pouring process for one cup is completed in a predetermined time of about 80 seconds.
The pouring time of each pouring from the fourth pouring to the fourth pouring is a distribution time proportional to the pouring amount of each pouring at the time of pouring.

[0015]

Embodiments of the present invention will be described with reference to the drawings. 1 is a side view of a main part of the coffee maker of the present invention, FIG. 2 is a front view of the main body, FIG. 3 is a side view of the main body, FIG. 4 is a plan view of the main body, and FIG. FIG. 6, FIG. 6 is a front view of the mechanism of the main part, FIG. 7 is a block diagram of the same, FIG. 8 is an explanatory plan view showing a path (trajectory) of pouring coffee powder into the coffee powder, and FIG.
FIG. 3 is a diagram showing the number of times of pouring and the amount of pouring, the number of characters of “no”, the time of pouring, and the pause time of pouring.

(1) is a box-shaped coffee maker body,
Left and right side plates (2) (2) and upper and lower front plates (3) (3)
A rear plate (4), an openable and closable upper plate (5), a base (5) surrounded by side plates (2) and (2) and the front plate (3), and a base (5). The upper side is formed of a U-shaped operation recess (6).

(7) is a flat plate having three semicircular holders (8), (8) and (8) fixed to the inner wall of the operation recess (6), (9), (9) and (8). 9) The front plate (3)
Three pouring buttons provided in (10), (10), (10)
Is a filter detachably mounted on the holders (8), (8), (8), and is made of flannel and has a lowermost portion formed in a pointed shape.

(11), (11) and (11) are filters (1) mounted on the holders (8), (8) and (8).
0), (10), a vertically elongated pouring port directly above (10), which moves simultaneously in the X-axis direction and the Y-axis direction within the range of the diameter of the filter, as will be described in detail later.

(12), (12), (12) are provided inside the main body (1), and the pouring ports (11), (1)
The swing mechanism for moving 1) and (11) in the X-axis direction and the Y-axis direction will be described in detail with reference to FIGS. 1, 5 and 6. (13) is a rail having a triangular cross section fixed in advance in parallel with the longitudinal direction of the flat plate (7).
4) is the pouring port (1) to the arm (15) provided at the tip.
1), (11), pouring pipe (16) of (11), (1)
6) A drive block which is movable in the Y-axis direction indicated by an arrow in FIG. 6 along the rail (13) on which the upper part of (16) is swingably mounted in the X-axis direction by a pin (17),
Rollers (1) contacting three sets of side walls of the rail (13)
8) (18), (19), (19), (20), (2)
0) and a driven plate (21) at the rear end.

Reference numeral (22) denotes a tamping belt connected to the driven plate (21). One side of the belt is fitted to a driven pulley (23), and the other side is fitted to a driving pulley (24). (25) is a belt drive motor composed of a stepping motor for moving the tamping belt (22) by rotating the drive pulley (24).

(26) a link drive motor comprising a stepping motor attached to the front side of the drive block (14) and moving together with the drive block; (27) one side fixed to the link drive motor (26); A rotary link having a free end as a free end; (28) one side connected to the other side of the rotary link (27) and the other side connected to the pouring pipe (16);
The pouring pipe (16) is driven by the rotation of the link drive motor (26) as shown in FIG.
Is moved in the X-axis direction indicated by the arrow.

The rocking mechanism includes three pouring pipes (1
6), (16), and (16), which are provided independently of each other and function independently. The belt drive motor (25) and the link drive motor (26) are controlled based on the contents programmed in advance in a microcomputer described later. Drive.

That is, the belt drive motor (25) moves the drive block (14) in the Y-axis direction, and
Is moved in the Y-axis direction (left and right) within the diameter dimension of the filter (10), and the link drive motor (26) rotates the rotating link (27) to move the driven link (28) in the X-axis direction, thereby pouring the spout. (11) is moved in the X-axis direction (front and rear) within the diameter of the filter (10).

As a result, according to the program of the microcomputer,
The series of coffee extraction steps consist of the X of the pouring pipe (16).
Simultaneous movement in the axial direction and the Y-axis direction, dispensing the pouring amount necessary for extracting one cup of coffee into four times, pouring, and pouring from a pouring hole (11) programmed in a microcomputer in advance. The pause between the number of "no" characters at the time, the number of pouring times programmed in the microcomputer in advance, and the number of times the last "no" character pouring (the fourth time) is included in this pause time. Time to do. These relationships are shown in FIG. 9, but before this detailed description, the "no" pouring at the time of extraction will be described.

As described above, the pouring of the letter "no" is executed by the program of the microcomputer, but in general, the pouring amount (total amount Q) required to extract a cup of coffee. Is 150 milliliters, so this 15
Distribute 0 ml into 4 times and the first pouring volume is about 2
2 ml is about 15% of the total amount, the second pouring amount is about 46 ml and about 30% of the total amount, the third pouring amount is about 60 ml and about 40% of the total amount, and the fourth pouring amount is about 22 ml. The amount of hot water finally used for the extraction is about 125 ml. Most of the remaining about 25 ml is absorbed in the coffee powder and a part is absorbed by the filter (10). You.

As for the "no" character pouring, as described above, the "no" character is based on the diameter of the standard cup (C) and has a smaller diameter of about 40 mm. It is programmed to draw the letter "". One rotation of the letter "" shown in FIG. 9 means that in the initial state of pouring, the lower end of the pouring port (11) is arranged at the center of the filter (10) containing the coffee powder (K) ( At the point S), pouring is started from this (point S) and the pouring port (1
The position of 1) is moved in the X-axis direction and the Y-axis direction, and thereafter, while the respective movement directions of the pouring port in the X-axis direction and the Y-axis direction are slightly changed, a spiral shape is formed on the extension of the “no” character. Finally, a circle having a diameter of 40 mm is drawn while pouring into (point P), and returns to the original position (point S) as shown in the arrow direction A at (point P). This means that the character "no" has made one rotation.

Therefore, at the time of the first pouring, the character "" is made one rotation, the second character "" is made two rotations, and the character "" is made 2.5 rotations, and The first "no" character is one rotation. During the second and third pouring operations described above, the pouring port (11) moves again to the position (point S), and the pouring state continues while following the same trajectory as the previous time.

However, at the time of the third pouring, the pouring port (11) is returned to the original position (point S) when the third "no" pouring has started (point Q).

As described above, the pouring of the "no" is 6.5 rotations in total, and the extraction process for one cup is completed.

Next, the pouring time shown in FIG. 9 will be described. The first pouring time is about 12 seconds and the second pouring time is about 25
Second, the third time is about 33 seconds, and the fourth time is about 12 seconds, and the total pouring time is 80 seconds.

The pause time shown in FIG. 9 will be described. The rest time from the end of the first pouring to the start of the second pouring is about 20 seconds, and the rest time from the second to the third is about 23 seconds, and the rest time from the third to the fourth is about 20 seconds. This is 30 seconds, and a pause of about 27 seconds is provided after the fourth pouring is completed. This 27 second pause is
This is equivalent to the last spotting time, and the coffee extracted by the above-described four pouring operations falls from the filter (10) and accumulates in the cup (C) in an optimal amount during the counting of the pause time. .

Therefore, the total time of the rest time required for extracting a cup of coffee is about 100 seconds, and the total time with the above-mentioned pouring time is about 180 seconds.

As described above, and as shown in FIG. 9, the pouring process for one cup is completed in a predetermined time of about 80 seconds, and the pouring process from the first time to the fourth time is performed. The hot water time is distributed in proportion to the pouring amount of each time of the pouring. In addition, the pause time between each pouring cycle is proportional to the pouring time, and the last about 27 seconds is assumed to be a time during which sufficient unevenness can be performed. As a result, about 180 seconds, which is the total time of the above-mentioned pouring time and the rest time, the hot water poured is poured into the entire area of the coffee powder, and it is necessary to obtain sufficient unevenness and aroma. Time.

Next, the block diagram shown in FIG. 7 will be described. (29) is an AC power supply, (30) is a microcomputer in which the number of times of pouring shown in FIG. 9, the number of characters of “NO”, pouring time and pause time are programmed in advance, and (31) is the AC power supply (29). ), (32) a power supply circuit for obtaining the power of the microcomputer (30), (33) a fan motor that blows air near the pouring port, and (34) a belt drive motor (25). And link drive motor (2
6) The drive circuit, (35) is the fan motor (33)
And a DC power supply of a drive circuit (34); (36) a reset circuit of various functions connected to the input side of the microcomputer (30); (37) a power failure detection circuit of an AC power supply (29);
8) A delay device (hereinafter referred to as a delay circuit) for delaying the operation of the swing mechanism (12) by a predetermined time. (39) is a watch circuit for energizing a heater described later by time control,
(40) is a heater / valve control circuit for controlling the heater by the output of the microcomputer (30) and the output of the watch circuit (39), and (41) is an operation display board, and the pouring buttons (9), (9) , (9) switch input circuit (4
Although not specifically illustrated as 2), the process display lamps (43), (43), (43) provided near the mounting portions of the respective pouring buttons.
, And a buzzer circuit (45) for notifying the end of a series of pouring steps.

(46) is provided in the main body (1),
A relatively small capacity hot water supply tank for storing hot water, (47) is provided in the main body (1) and has a larger capacity than the hot water supply tank (46), and (48) is in the hot water supply tank (46). (49) and (50) are hot water temperature sensors provided in upper and lower portions in a hot water supply tank (46),
(51) is a heating heater that heats the hot water storage tank (47) to heat the water therein, (52) is a temperature sensor provided in the hot water storage tank (47), and (53) is the hot water storage. A float provided in the tank (47) and moving up and down according to the water level in the tank, (54) is a float switch that operates according to the up and down movement of the float, and is activated when the water level drops to the lowest level for some reason. Heating heater (5
Turn off the power supply of 1).

(55) a pump provided between the hot water supply tank (46) and the hot water storage tank (47) for forcibly supplying hot water in the hot water storage tank (47) into the hot water supply tank (46);
(56), (56) and (56) correspond to the respective pouring pipes (1).
6), (16), electromagnetic water shutoff valves provided above (16), (57) and (57) are trials for controlling the energization of the water heater (48) and the heating heater (51). Up, (5
8), (58) and (58) are respectively the heater valve control circuit (40) and the water shutoff valves (56), (56),
(56) FE for controlling the opening and closing of the water shutoff valve by being connected between
T.

Next, the operation will be described. The general operation of each part and each mechanism is as described above, but the main body (1)
The process from the installation of the to the extraction of a cup of coffee will be described.

After the main body (1) is installed, the hot water storage tank (4)
7) A predetermined amount of water is supplied to the inside, and heated by a heating heater (51) to store hot water. The filters (10), (10), (10) containing a certain amount of coffee powder are placed on the respective holders (8), (8), (8), and the filters (10), (10), ( The cups (C), (C), and (C) are placed on the base just below 10).

When the pouring button (9) is operated, the output of the microcomputer (30) causes the heater / valve control circuit (40) to operate.
The water stop valve (56) is opened via the pump and the pump (55) at the same time.
To activate the hot water in the hot water storage tank (47).
6), and the hot water in the hot water supply tank is sent out into the pouring pipe (16). It takes some time (several seconds) from the operation of the pouring button (9) to the pouring from the pouring port (11).

In view of this delay time, after operating the pouring button, the belt drive motor (25) and the link drive motor (26) are operated with a slight delay by the delay circuit (38), and the pouring port (11) is always opened. The pouring starts at (point S) shown in FIG. 8 and moves in the X-axis and Y-axis directions.

Of course, three pouring buttons (11), (11),
Even when (11) is operated continuously, the water stop valves and the swing mechanisms operate at the same timing, as described above.

Although the delay device of the present invention is a delay circuit connected to a microcomputer, it may be mechanical.

[0043]

As described above, according to the present invention, the pouring port for pouring coffee powder stored in the filter is in a pouring state.
The pouring water is poured into the coffee powder in the X-axis direction and the Y-axis direction at the same time so that the shape of the "no" is drawn. Compared to the method of pouring in a spiral shape, it is possible to always pour evenly and evenly over a wide range of coffee grounds, and to extract optimal coffee with aroma and richness.

In particular, since the pouring port is moved in the X-axis direction and the Y-axis direction to perform "no" pouring, it is necessary to pouring almost all the area of the predetermined coffee powder. In addition, continuous extraction is possible without causing unevenness in the coffee powder.

The rocking mechanism of the pouring port for performing the pouring of the letter "NO" delays the operation thereof by the delay device to delay the opening of the water stop valve for a predetermined time. The swinging mechanism is prevented from moving even though the molten metal is not poured.

In the swinging mechanism, in the initial state at the start of pouring, the pouring port is arranged at the center of the filter. It is possible to obtain the above-mentioned optimum coffee by performing regular pouring.

Further, in the case where hot water to be poured from the pouring port is intermittently poured into coffee powder so as to draw a letter “no”, extraction of one cup is completed by four pouring steps. , And the "no" pouring is the first time,
Since the second time is twice, the third time is 2.5 times, and the fourth time is one time, it is possible to extract a coffee having the highest fragrance, richness and richness by setting the number of times.

Also, the required amount of pouring for one cup every 2 minutes is about 15% for the first time, about 30% for the second time, about 40% for the third time, and about 15% for the fourth time. Because of this distribution, the hot water poured into the coffee powder is divided into four times by this distribution, and the amount of each pouring in each time is sufficiently spread to the coffee powder, and the next time The water absorption during pouring.

In the pouring process required for extracting one cup of coffee, this process is completed in a predetermined time of about 80 seconds, and each pouring time from the first time to the fourth time is set to each pouring time. Since the time is set in proportion to the amount of hot water, if the amount of pouring is large, the pouring time is long, and if the amount is small, shorten the pouring time. Can pour.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a coffee maker of the present invention.

FIG. 2 is a front view of the main body.

FIG. 3 is a side view of the main body.

FIG. 4 is a plan view of the main body.

FIG. 5 is a plan view of a main part of the mechanism.

FIG. 6 is a front view of the mechanism of the main part.

FIG. 7 is a block diagram similarly.

FIG. 8 is an explanatory plan view showing a route for pouring coffee powder contained in the filter.

FIG. 9 is a relationship diagram of the number of times of pouring, the amount of pouring, the number of characters of “no”, the time of pouring, and the downtime.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coffee maker main body 5 Base 8 Holder 9 Pouring button 10 Filter 11 Pouring port 12 Swinging mechanism 38 Daylay device 46 Hot water supply tank 47 Hot water storage tank 56 Stop valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Hisashi Shiga 3-201, Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd. (72) Inventor Kiyoshi Kishimoto 3-201 Minamiyoshikata, Tottori-shi, Tottori F-term (reference) in Sanyo Electric Co., Ltd. 4B004 AA12 BA03 BA12 BA22 BA32 BA37 BA42 CA02

Claims (6)

[Claims] 1. A hot water supply tank, a pouring opening for pouring hot water from the hot water supply tank, a filter set under the pouring opening for containing coffee powder, and a cup provided below the filter and receiving the extracted coffee. And a base on which the pouring port is placed.
A coffee maker characterized by pouring the pouring water into the coffee powder as shown in the shape of "no" by simultaneously moving it in the axial direction. 2. A water shutoff valve provided between the hot water storage tank and the pouring port, a pouring button for opening the water shutoff valve, and a pouring port for performing pouring of the pouring water "". And a delay device for delaying the operation of the rocking mechanism for a predetermined time, and after operating the pouring button, the delay device delays the rocking mechanism for a predetermined time from the opening of the water stop valve by operating the pouring button. The coffee maker of claim 1 operative. 3. The coffee maker according to claim 2, wherein the rocking mechanism arranges a pouring opening at a central portion of the filter in an initial state at the time of starting pouring. 4. A hot water storage tank, a pouring port for pouring hot water from the hot water storage tank, a filter set under the pouring port to contain coffee powder, and a cup provided below the filter and receiving the extracted coffee. A mounting table is provided, and in which the hot water to be poured from the pouring port is intermittently poured into the coffee powder as in the drawing of the letter “no”, the extraction of one cup is performed by four pouring steps. The pouring of the "no" is completed once at the time of the first pouring, twice at the second pouring, and 2.5 times at the third pouring, A coffee maker characterized by one pouring at the fourth pouring. 5. The distribution of required pouring amount for one cup is about 15% at the time of the first pouring and about 30% at the time of the second pouring.
%, About 40% at the third pouring, about 1 at the fourth pouring
The coffee maker according to claim 4, wherein 5% of hot water is poured. 6. The pouring process for one cup is completed in a predetermined time of about 80 seconds, wherein each pouring time from the first to the fourth pouring is set to each pouring amount at the time of pouring. 6. The coffee maker according to claim 5, wherein the distribution time is set in proportion.