JP2001061665A - Coffee extractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the opening of a hot water supply side valve when a filter to store a coffee powder is not mounted in a holder and prevent hot water from accidentally flowing out. SOLUTION: The extractor has a valve to open and close a hot water passage to a hot water pouring pipe 7, a filter 8 to store a coffee powder, a holder 4 holding the filter, and a holder detector 9. The detector 9 enables the valve to open, allowing hot water to be poured when the filter 8 is mounted in the holder 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee extractor for pouring boiling water into coffee powder contained in a filter.

[0002]

2. Description of the Related Art For coffee enthusiasts and business-use coffee, a drip type in which crushed coffee powder is stored in a filter and hot water is poured to extract the coffee is mainly used. Such an extraction method is automatically performed. For example, a filter containing coffee powder is placed on a holder, a hot water supply button is operated, a valve is opened, and hot water is removed. Is generally poured from the top of coffee grounds.

[0003]

However, the problem here is when the hot water supply button is operated without attaching the filter containing the coffee powder to the holder.

At this time, the outflowing hot water hits a part of the coffee extractor or the table surface and scatters to hit the body, which is dangerous.

According to the present invention, when the filter is not mounted on the holder, the opening of the valve on the hot water supply side is prevented to prevent the hot water from flowing out accidentally.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a pouring pipe for hot water, a valve for opening and closing a pouring passage to the pouring pipe, and a filter attached below the pouring pipe for accommodating coffee powder. And a filter detection device for detecting a moving position of the holder, wherein the detection device detects the weight of the filter containing the coffee powder when the filter is mounted on the holder, opens the valve, and pours the water. Is made possible.

Further, the detection device pushes the holder upward when the filter is not mounted, and pushes down the holder by the weight of the holder and the coffee when the filter is mounted to stop the holder in a horizontal state.

[0008] Further, the holder is rotatably supported by a part thereof, and a filter catcher is provided at one end, and a weight for pushing the catcher upward is attached to the other end, and coffee powder or a filter of the filter is attached. The size of the weight or the position of attachment to the holder can be changed according to the weight.

[0009]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a main part of a coffee extractor of the present invention, FIG. 2 is an external perspective view of the same coffee extractor, FIG.
FIG. 4 is a plan sectional view showing a pouring mechanism of the pouring pipe, and FIG.
5 is a perspective view of the mechanism of the filter detecting device, FIG. 5 is a schematic block diagram, and FIG. 6 is an explanatory diagram of the detecting device when the filter is not mounted.

[0010] (1) is a cup (2) (2) (2) on the front
Mounting table (3) and first, second and third holders (4)
(4) (4) and first, second, and third pouring buttons (5) (5)
(5) The extractor body provided with the display units (6), (6) and (6) for the hot water supply and extraction process, and (7), (7) and (7) are above the holders (4), (4) and (4). And (8), (8) and (8) are filters that are provided in the holder so as to be freely attached and contain coffee powder.

(9) (9) (9) is the holder (8)
(8) A filter detecting device comprising (8), a weight (10), and first, second, and third sensors (11), (11), (11), wherein the holder has one end as shown in FIG. A vertically long guide hole (1) provided in the structure (12) of the extractor body (1).
3) is inserted and exposed to the outside, and the weight (10) is inserted at the other end.
Is movably mounted and partly pivoted to the structure (12) by pins (14). (15) is a lever fixed to the holder (4) and opening and closing the sensor.

With this attachment, one end of the holder (4) is pushed upward by the weight (10) as shown in FIG. When one end of the holder (4) is pushed upward, the lever (15) is raised and the sensor (11) is open, and when the filter (8) is placed, the weight of the filter and the coffee powder are reduced. The one end of the holder (4) is lowered by the weight of (1) to close the sensor (11).

A stopper (16) is fixed to the structure (12) and stops the holder (4) from lowering below the horizontal position, and (17) holds a mounting position of the weight (10). Lock screw.

(18), (18) and (18) are first, second and third pouring mechanisms for swaying the pouring pipe (7) to the left and right to turn the pouring water into a spiral shape and pour it into the coffee powder. As shown in FIG. 3, a first motor (20) fixed to a first base (19) and swinging the pouring pipe (7) in the X-axis direction, and a pouring pipe fixed to a second base (21). Y hot water pipe (7)
A second motor (22) swinging in the axial direction, the second base (21) being connected to a rotation shaft (23) of the first motor (20), and a rotation shaft of the second motor (22). (2
The pouring pipe (7) is fixed to 4).

Next, the block diagram shown in FIG. 5 will be described. (25) is a microcomputer in which a program necessary for coffee extraction is input in advance, and (26), (26) and (26) are the first, second and third pouring buttons (5), (5) and (5), respectively. First, second, and third pouring button detection circuits for detecting the operation signals of (27), (27), and (27) are the first, second, and third
The first, second and third filter detection circuits for detecting the signals of the sensors (11), (11) and (11), and (28) are hot water of a hot water storage tank provided in the extractor main body (1) although not shown. A hot water storage sensor for detecting the temperature; (29) a hot water sensor for a hot water tank provided in the extractor body (1) and connected to the hot water storage tank for storing hot water;
(30) is a temperature detection circuit provided for each sensor,
(31), (31) and (31) denote first, second and third pouring valves respectively provided in the first, second and third pouring mechanisms (18), (18) and (18). By operating the first, second, and third pouring buttons (5), (5), and (5), the motor of the pouring mechanism corresponding to the operated pouring button is operated, and the corresponding valve is opened.

(32) is a hot water supply pump for supplying hot water from the hot water storage tank to the hot water tank, (33) is a heater for heating water in the hot water storage tank, and (34) boils water in the hot water tank. It is a water heater.

Next, the operation will be described. Hot water heated to a relatively low temperature in the hot water storage tank is stored in the hot water tank by the hot water supply pump (32), and in the standby state in which the hot water is maintained in the hot water tank, the filter (8) is attached to the holder (4). 6), one end of all the holders (4) is raised by the lowering of the weight (10) as shown in FIG.

In this state, since the lever (15) is also raised, all the sensors (11), (11) and (11) are open, and even if the pouring button is operated by mistake, the pouring valve is opened. The hot water does not flow out of the pouring pipe (7) unexpectedly.

Here, the cup (2) is placed, for example, on a placing table (3) located below a pouring pipe connected to a first pouring mechanism (18), and contains a predetermined amount of coffee powder. The filtered filter (8) is slid from the front side of the first holder (4) and placed on the holder.

With the placement of the filter (8), one end of the holder (4) falls below the weight of the weight (10) due to both the weight of the filter and the weight of the coffee powder due to the weight of the filter. The lever (15) goes down and the first
The sensor (11) is pressed to close.

When the first sensor (11) is closed, the signal is input to the microcomputer (25) via the detection circuit (27) of the first filter, and the operation of the first pouring button (5) is awaited. .

When the first pouring button (5) is operated, the first motor (20) and the second motor (22) of the first pouring mechanism (18) are opened simultaneously with the opening of the first pouring valve (31). When activated, the pouring pipe (7) turns while drawing a spiral, and pours hot water from the upper surface of the coffee powder.

Of course, even if the second pouring button (5) located above the mounting table (3) on which the filter (8) is not mounted is pressed, the second sensor (11) is closed. No hot water flows out because the second pouring valve (31) is closed. The same applies when the third pouring button (5) is pressed.

When the filter (8) after extraction is removed from the holder (4), one end of the holder (4) is raised by the weight (10) as described above, and the first sensor (1) is lifted.
1) is opened and the first pouring valve (31) is closed.

When the amount of coffee powder is small or the weight of the filter (8) is light, the position of the weight (10) is turned to the left as shown in FIG. 1 to reduce the pushing force of the weight (10). Make it smaller.

[0026]

As described above, the present invention provides a filter detecting device for detecting a moving position of a holder on which a filter containing coffee powder is placed, and detects a weight of the filter when the filter is placed on the holder. Since the pouring is performed by opening the valve of the pouring pipe, the valve cannot be opened and pouring cannot be performed without the filter attached to the holder. There is no danger of burns.

In particular, since the filter detecting device detects the weight when the filter is mounted, the structure of the detecting device is very simple, and the number of failures is reduced. Another possible method for detecting the filter is to use an optical sensor.However, if the coffee liquid scatters from the cup during extraction, such as a coffee extractor, the optical sensor may not be able to detect dirt due to the coffee extract. However, in the case of the present invention, there is no such a problem.

Further, the detection device pushes the holder upward when the filter is not mounted, and presses down by the weight of the holder and the coffee when the filter is mounted, and stops in a horizontal state. The filter is horizontal and the coffee powder can be poured evenly without bias, and the holder is pushed up when the filter is not installed, so the space below the holder is large and the coffee cup Set is easy.

Further, the holder is rotatably supported by a part thereof and is rotatably provided with a weight at the other end. By changing the position of the weight, adjustment according to the weight of the coffee powder or the filter can be performed.

[Brief description of the drawings]

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

FIG. 2 is an external perspective view of the coffee extractor.

FIG. 3 is a plan sectional view showing a pouring mechanism of the pouring pipe.

FIG. 4 is a perspective view of the mechanism of the filter detecting device.

FIG. 5 is a schematic block diagram similarly.

FIG. 6 is an explanatory diagram of the detection device when no filter is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Extractor main body 4 Holder 5 Pouring button 7 Pouring pipe 8 Filter 9 Detector 10 Weight 31 Valve (Pouring)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kenichiro Komatsu 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Inside Sanyo Electric Co., Ltd. (72) Inventor Toru Matsui 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Tottori Inside Electric Machinery Co., Ltd. (72) Inventor Kenichi Kawada 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Electric Co., Ltd. (72) Inventor Masami Fukumoto 3-201 Minamiyoshikata, Tottori City, Tottori Sanyo Electric Co., Ltd. F-term (reference) 4B004 AA18 BA10 BA21 BA22 BA31 BA35 BA40 BA46 CA12

Claims (3)

[Claims] 1. A pouring pipe for hot water, a valve for opening and closing a pouring passage to the pouring pipe, a holder for a filter attached below the pouring pipe for containing coffee powder, and movement of the holder A filter detecting device for detecting a position, wherein the detecting device detects the weight of the filter containing the coffee powder when the filter is attached to the holder, opens the valve, and allows the coffee to be poured. Extractor. 2. The detection device according to claim 1, wherein the holder pushes up the holder when the filter is not attached, and pushes down the holder by the weight of the holder and coffee when the filter is attached to stop the holder in a horizontal state. Item 7. A coffee extractor according to Item 1. 3. The holder is rotatably supported by supporting a part thereof, and a catcher of the filter is provided at one end,
2. A weight that pushes up the catcher upward is attached to the other end, and the size of the weight or the mounting position with the holder can be changed according to the weight of the coffee powder or the filter. A coffee extractor according to claim 1.