JPH06113953A - Beverage extracting device - Google Patents

Abstract

PURPOSE:To provide a beverage extracting device which improves the energy saving and operation performance. CONSTITUTION:A warm keeping plate 2 on which a decanter is placed is installed, and a heater 13 for heating the warm keeping plate 2 is installed. A microswitch 26 for detecting the existence of the decanter on the warm keeping plate 2 is installed, and when the decanter is demounted from on the warm keeping plate 2, the electric conduction of the heater 13 is cut off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage extracting device used for extracting coffee, for example, in a restaurant or the like.

[0002]

2. Description of the Related Art Conventionally, this type of beverage extractor is disclosed as a coffee extractor in, for example, Japanese Patent Application Laid-Open No. 2-80012 (A47J31 / 10). That is, the coffee extractor is installed in a restaurant such as a restaurant, a glass decanter is detachably mounted on a heat insulating plate, and a chamber containing coffee powder is arranged above the decanter. The coffee is extracted by supplying hot water from above using the siphon effect and is stored in the lower decanter. In addition, a heater is provided on the back surface of the heat insulating plate so that the decanter storing the extracted coffee is kept warm from the heat insulating plate and is not cooled.

The structure of the heat insulating plate 101 of the conventional coffee brewing apparatus 100 will be described below with reference to FIG. A substantially circular through hole 103 is formed in the table 102 formed at the bottom of the front surface of the coffee brewing apparatus 100, and an aluminum plate 104 is arranged in the through hole 103. The heater 10 is provided on the back surface of the aluminum plate 104.
5 is provided, and is attached to the aluminum plate 104 by being pressed by the attachment plate 106 from below.
A fixing plate 108 is arranged below the mounting plate 106 via a spacer 107.

The heat insulating plate 101 is made of metal and has a substantially circular dish shape, and a stud bolt 109 projects downward from the center of the back surface. On the other hand, the aluminum plate 104,
A through hole 104 is formed in the center of the mounting plate 106 and the fixed plate 108.
A, 106A, and 108A are provided respectively, and the heat insulating plate 101 is obtained by inserting the stud bolt 109 on the back surface into the through holes 104A, 106A, and 108A from above and fixing the lower end to the fixing plate 108 with the bolt 110. , Is closely attached to the upper surface of the aluminum plate 104.

A manual switch 111 for controlling the energization of the heater 105 is attached to the front surface of the table 102. The manual switch 111 is turned on during or after the extraction of coffee to cause the heater 105 to generate heat and the aluminum plate 104. Insulation plate 101 through
More heat the decanter to keep it warm. Further, the decanter is removed from the heat retaining plate 101 and carried to the table every time the customer is served coffee.

[0006]

As described above, since the heater 105 on the back surface of the heat insulating plate 101 is conventionally energized by the manual switch 111, even while the decanter is removed from the heat insulating plate 101 for serving coffee. The heater 105 is generating heat. Therefore, the heater 105 consumes useless power, and if power saving is desired, the manual switch 111 is used one by one when the decanter is attached or detached.
Had to be turned on and off, which made the operation extremely troublesome.

[0007] In addition, since beverages such as coffee have a long time after extraction and lose their aroma and become unpleasant, for example, in a restaurant or the like in which a large amount is extracted at a time, the beverage remains unsold after 30 minutes from the extraction. I try to discard coffee. When managing the elapsed time from such extraction, conventionally, the extracted time is written on a piece of paper and attached to a coffee extracting device, and the elapsed time is calculated from the present time based on the time written on the paper. Since it was discarded, the management work was extremely troublesome, and there was also a problem that the extracted time would not be known if the paper on which the time was recorded was lost by mistake.

The present invention has been made to solve the above-mentioned conventional technical problems, and an object thereof is to provide a beverage brewing apparatus which realizes energy saving and improvement of operability.

[0009]

That is, a beverage extracting device (coffee extracting device) 1 according to the invention of claim 1 has a chamber 8 arranged above a decanter 9 and hot water is added to the raw material powder contained in the chamber 8. The beverage that is supplied and extracted is stored in the decanter 9 to retain heat, and the heat retaining plate 2 on which the decanter 9 is placed, the heater 13 for heating the heat retaining plate 2, and the heat retaining plate 2 The detection device (micro switch) 26 that detects the presence of the decanter 9 and the control device 3 that controls the energization of the heater 13 based on the output of the detection device (micro switch) 26 are provided. When the decanter 9 is removed from the heat insulating plate 2, the heater 13 is turned off.

The beverage brewing apparatus (coffee brewing apparatus) 1 according to the second aspect of the invention has a chamber 8 above the decanter 9.
The hot water is supplied to the raw material powder contained in the chamber 8 and the extracted beverage is stored in the decanter 9 to keep it warm. The extracted beverage is stored in the decanter 9. Detection device (micro switch)
26, a timer T, and an alarm device (lamp 28, buzzer 2
9) and the timer T starts integration based on the detection operation of the detection device (micro switch) 26, and when a predetermined integration time has elapsed, an alarm device (lamp 28,
The buzzer 29) is operated.

[0011]

According to the beverage brewing apparatus (coffee brewing apparatus) 1 of the present invention, when the decanter 9 storing the beverage is placed on the heat insulating plate 2, the control device 3 detects the detecting device (microphone). Since the heater 13 is energized based on the output of the switch 26, the beverage in the decanter 9 is kept at an appropriate temperature. Further, since the controller 3 automatically cuts off the energization of the heater 13 only by removing the decanter 9 from the heat insulating plate 2, unnecessary heat generation of the heater 13 is eliminated, and power consumption while the decanter 9 does not exist. Is reduced compared to the conventional one.

According to the beverage brewing apparatus (coffee brewing apparatus) 1 of the second aspect of the invention, the timer T starts counting from the time when hot water is supplied to the chamber 8 and the brewed beverage is stored in the decanter 9. Since the alarm device (the lamp 28 and the buzzer 29) is operated after the lapse of a predetermined integration time, the user must discard the beverage by setting the timer T to the time from the extraction of the beverage to the disposal. The elapsed time that must be learned can be known by the operation of the alarm device (lamp 28, buzzer 29).

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a vertical sectional side view of a heat insulating plate 2 portion of a coffee brewing apparatus 1 as an embodiment of a beverage brewing apparatus of the present invention, FIG. 2 is a side view of the coffee brewing apparatus 1, and FIG. 3 is a control device 3 of the coffee brewing apparatus 1. The electric circuit diagram of each is shown. A heating tank (not shown), a siphon tube, and the like are housed inside the main body case 4 of the coffee brewing apparatus 1, and a table 6 is formed at the lower front portion. An eaves portion 7 is formed above the table 6, and a chamber 8 containing coffee powder is detachably attached to the lower side of the eaves portion 7. Table 4 located below this chamber 8
The heat insulating plate 2 is provided on the upper surface of the and the eaves portion 7, and the glass decanter 9 is detachably mounted on the heat insulating plate 2.

When extracting coffee, a predetermined amount of water is poured into the heating tank in the main body case 4, and
A predetermined amount of coffee powder is housed in the chamber 8 and set below the eaves 7, the decanter 9 is placed on the heat retaining plate 2 on the upper surface of the table 6, and the power switch (not shown) of the coffee brewing device 1 is turned on. To do. Then, hot water is supplied from the heating tank to the chamber 8 from above through the siphon pipe in the eaves section 7, and the extracted coffee is stored in the decanter 9 below the chamber 8.

Next, the structure around the heat retaining plate 2 on the upper surface of the table 6 will be described with reference to FIG. Since the heat insulating plate 2 on the upper surface of the eaves 7 has the same structure, the description thereof will be omitted. A substantially circular through hole 11 is formed on the upper surface of the table 6, and an aluminum plate 12 is disposed inside the through hole 11. A heater 13 is provided on the back surface of the aluminum plate 12, and is attached to the aluminum plate 12 by being pressed by a mounting plate 14 from below.
A fixed plate 17 is arranged below the mounting plate 14 with a spacer 16 interposed therebetween.

The heat insulating plate 2 is made of metal and has a substantially circular dish shape, and the stud bolt 18 extends downward from the center of the rear surface.
Is protruding. On the other hand, aluminum plate 12 and mounting plate 1
4 and the center of the fixing plate 17 have through holes 12A, 14A, 17
A is provided in each of the through holes 12A and 14A.
A pipe 19 is vertically attached so as to be inserted through A and 17A. The heat insulating plate 2 is arranged on the aluminum plate 12 by inserting a stud bolt 18 on the back surface into the pipe 19 so as to be freely inserted into and removed from the pipe 19.

On the other hand, a support plate 21 is attached to the lower side of the fixed plate 17, and a coil spring 22 is accommodated in the support plate 21. The coil spring 22 is arranged below the stud bolt 18 of the heat insulating plate 2, and a push plate 23 is attached to the upper end thereof. The coil spring 22 is inserted in a compressed state between the coil spring 22 with its lower end abutting on the bottom side of the support plate 21 and the pressing plate 23 abutting the lower end of the stud bolt 18. As a result, the coil spring 22 constantly urges the heat retaining plate 2 in a direction to push it upward, and when the decanter 9 is not placed, the pressing plate 23 is brought into contact with the lower surface of the fixed plate 17 and the heat retaining plate 2 is fixed to the aluminum plate 12. Hold in a state of being lifted up with a slight clearance.

A micro switch 26 as a detection device is attached to the bottom side of the support plate 21 inside the coil spring 22. The micro switch 26 is arranged so that its operating rod faces upward and faces the lower surface of the push plate 23. Then, when the push plate 23 is pushed down against the biasing force of the coil spring 22 by the stud bolt 18 as the heat insulating plate 2 is lowered, the push plate 23 comes into contact with the operating rod of the micro switch 26 and pushes it down, which will be described later. The internal contacts are closed. A timer release switch 27 described later is attached to the front surface of the table 6.

Next, in the controller 3 of FIG. 3, the heater 13 is connected to the power source AC in series with the normally open contact 26A of the microswitch 26, and the other normally open contact 26B of the microswitch 26 is series with the relay R. Is connected to the power supply AC. A series circuit of a normally open timer release switch 27 and a normally open contact R1 of the relay R is connected in parallel to the normally open contact 26B of the micro switch 26, and another normally open contact R2 of the relay R is connected to the timer T. Is connected to the power supply AC in series. The contact T1 of the timer T is connected to the power supply AC in series with the lamp 28 constituting the alarm device, and the other contact T1.
2 is connected to a power supply AC in series with a buzzer 29 which also constitutes an alarm device. The timer T is energized to start integration, and after integration for 30 minutes, the contacts T1 and T2 are closed. The lamp 28 is provided near the heat insulating plate 2 on the table 6, and the buzzer 29 is provided on the body case 4.
It is provided inside.

The operation of the control device 3 of the coffee brewing device 1 having the above configuration will be described. The decanter 9 has a capacity of, for example, 1.8 liters, and is assumed to be placed on the heat insulating plate 2 on the upper surface of the table 6 in an empty state. In this state, the biasing force of the coil spring 22 exceeds the weight of the decanter 9 and the heat insulating plate 2, and the heat insulating plate 2 and the decanter 9 are lifted as shown in FIG.
Are spaced above the microswitch 26. Therefore,
Since the normally open contacts 26A and 26B of the micro switch 26 are open and the heater 13 is not energized, it is possible to prevent the decanter 9 containing no coffee from being unnecessarily heated. Further, the relay R is also de-energized and the contacts R1 and R2 are
Is open, timer T is not integrated, and contact T1,
T2 is open.

In such a state, as described above, the coffee brewing apparatus 1
When the power switch is turned on, hot water is supplied to the chamber 8 and coffee is extracted, the extracted coffee is stored in the lower decanter 9. Since the total weight of the decanter 9 gradually increases with the dropping of coffee, the push plate 23 is pushed down by the stud bolt 18 of the heat insulating plate 2, and the coil spring 22 is compressed. When the stored amount of coffee reaches about 1 liter, the heat insulating plate 2 comes into close contact with the upper surface of the aluminum plate 12 as shown in FIG. 4, and the pressing plate 23 comes into contact with the operating rod of the micro switch 26 to push it down to bring it into contact with the normally open contact. 26A and 26B are closed.

By closing the normally open contact 26A in this manner, the heater 13 is energized, and the heater 13 generates heat to heat the aluminum plate 12. The heat insulating plate 2 is heated by the aluminum plate 12 and heats the decanter 9 placed on the upper surface thereof so as not to cool it. On the other hand, when the normally open contact 26B is closed, the relay R is energized, and the contacts R1 and R2 are closed. By closing the contact R1, the energization of the relay R is self-maintained, and even if the normally open contact 26B is subsequently opened, the relay R continues to be energized. Further, when the contact R2 is closed, the timer T is energized and the timer T starts integration. That is, the timer T uses the decanter 9 for the extracted coffee.
Accumulation will start when 1 liter or more is stored in.

When the decanter 9 is removed from the heat retaining plate 2 in order to serve coffee to the customer, the pressing plate 23 and the stud bolt 1 are urged by the urging force of the coil spring 22.
The heat insulating plate 2 is lifted via 8 as shown in FIG. Therefore, the push plate 23 is separated above the micro switch 26, and the normally open contacts 26A and 26B are opened. Since the heater 13 is not energized by opening the normally open contact 26A, wasteful heat generation of the heater 13 in a state where the decanter 9 is removed is prevented and power consumption is reduced. If the decanter 9 is placed on the heat insulation plate 2 again and the operating rod of the micro switch 26 is pushed down,
Since the contacts 26A and 26B are closed again, the heater 13 starts to generate heat and keeps the coffee remaining in the decanter 9 warm.

On the other hand, even when the normally open contact 26B is opened, the relay R is self-held by the contact R1 being closed, and is continuously energized. Therefore, the timer T continues to continue the integration regardless of the removal of the decanter 9, and after 30 minutes have passed from the extraction of the coffee, the contacts T1 and T2 are closed, the lamp 28 is turned on, and the buzzer 29 is sounded. These alarms allow the user to recognize that 30 minutes have passed since the coffee was extracted and discard the coffee remaining in the decanter 9.

The alarm is released by opening the timer release switch 27. That is, when the timer release switch 27 is opened with the normally open contact 26B opened, the relay R is de-energized and the self-holding is also released. Therefore, the contact R2 is also opened, the timer T is de-energized, the contacts T1 and T2 are opened, the lamp 28 is extinguished, and the buzzer 29 is also stopped.

Although the present invention is applied to the coffee extracting device in the embodiments, the present invention is not limited to this, and the present invention is effective for various beverage extracting devices that need to be kept warm and that aroma loss is disliked. Further, in the embodiment, the micro switch 26 is configured to operate in a state where about 1 liter of coffee is stored in the decanter 9, but it may be configured to operate in a smaller amount. Depending on the extraction capacity, the conditions of the installation location, etc., it can be appropriately changed without departing from the spirit of the present invention.

[0027]

As described above in detail, according to the invention of claim 1, in the state in which the decanter is placed on the heat insulating plate, the controller energizes the heater based on the output of the detection device, so the decanter is activated. The beverage inside can be kept at an appropriate temperature. Also, if the decanter is removed from the heat insulation plate, the control unit will automatically turn off the heater power, preventing unnecessary heat generation of the heater and reducing unnecessary power consumption while the decanter is not present. It is possible to contribute to energy saving and significantly improve usability.

Further, according to the invention of claim 2, the timer starts the integration from the time when the hot water is supplied to the chamber and the extracted beverage is stored in the decanter, and the alarm device is activated after a lapse of a predetermined time. The user can automatically be made aware of the elapsed time for discarding the beverage, and the usability can be significantly improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a heat insulating plate portion of a coffee brewing apparatus as an embodiment of a beverage brewing apparatus of the present invention.

FIG. 2 is a side view of the coffee brewing device.

FIG. 3 is an electric circuit diagram of a controller of the coffee brewing device.

FIG. 4 is a vertical cross-sectional side view of a heat insulating plate portion of a coffee extraction device in which a decanter storing coffee is placed.

FIG. 5 is a vertical sectional side view of a heat insulating plate portion of a conventional coffee brewing apparatus.

[Explanation of symbols]

 1 Coffee Extraction Device 2 Insulation Plate 3 Control Device 8 Chamber 9 Decanter 13 Heater 26 Micro Switch 28 Lamp 29 Buzzer T Timer

Claims (2)

[Claims] 1. A beverage extractor in which a chamber is arranged above a decanter and hot water is supplied to a raw material powder contained in the chamber to extract a beverage, which is stored in the decanter to retain heat therein, the decanter being mounted on the decanter. A heat-retaining plate to be placed, a heater for heating the heat-retaining plate, a detector for detecting the presence of a decanter on the heat-retaining plate, and a controller for controlling energization of the heater based on the output of the detector. The beverage brewing device, wherein the control device cuts off the power supply to the heater when the decanter is removed from the heat insulating plate. 2. A beverage extractor in which a chamber is disposed above a decanter, and a beverage extracted by supplying hot water to the raw material powder contained in the chamber is stored in the decanter to retain heat therein. When a predetermined integration time has elapsed, the timer is provided with a detection device for detecting that is stored in the decanter, a timer, and an alarm device, and the timer starts integration based on the detection operation of the detection device. A beverage extraction device, characterized in that the alarm device is activated.