JPH0710246B2 - Beverage making machine - Google Patents

Description

The present invention relates to a siphon-type beverage maker.

(Prior Art) A coffee maker has been well known as a siphon-type beverage maker of this type. FIG. 5 shows the conventional siphon-type coffee making machine. In FIG. 5, reference numeral 1 is a support having a handle portion 2, and a holder 3 is provided on the support 1. Further, 4 is a lower container, 5 is an upper container having a water pipe 6 and a filter 7. Coffee powder is put in this upper container 5, while an appropriate amount of water matching the amount of coffee powder is put in the lower container 4. The lower container 4 is held by the holder 3, and then the upper container 5 is joined to the lower container 4 and held in the same manner, and the upper container 5 is connected to the lower container 4 through the water pipe 6 and the filter 7. To communicate with. Then, in this state, the heater 8 is provided below the lower container 4.
And heat it to heat the water in the lower container 4. Then, the water in the lower container 4 eventually boils and generates steam to gradually increase the steam pressure, so that when the water pressure in the lower container 4 reaches a certain pressure or higher, the hot water in the lower container 4 is caused by the steam pressure. It is fried in the upper container 5 through the filter 7 and mixed with coffee powder to form a coffee liquid.
Then, after that, when the heater 8 is de-energized to stop its heat generation, the lower container 4 is cooled and the vapor pressure in the inside is lowered to cause a vacuum action. The coffee liquid in the above is introduced into the lower container 4 through the filter 7 and the water pipe 6. Therefore, after that, the upper container 5 may be removed from the lower container 4, the handle portion 2 of the support 1 may be held, and the lower container 4 may be tilted together with the support 1 to transfer the coffee liquid to the coffee cup.

(Problems to be Solved by the Invention) In the case of the above-mentioned conventional one, after the hot water is fried, that is, transferred from the inside of the lower container 4 to the inside of the upper container 5, the energization of the heater 8 is cut off to stop the heat generation. It was troublesome because the user had to do it with his hands. Further, for this reason, the user has to stay close to the coffee making machine after the heating of the lower container 4 by the heater 8 is started, which is inconvenient. Further, the heater 8 described above
The power disconnection operation must be performed at a predetermined timing after the hot water is transferred from the lower container 4 to the upper container 5, but the problem is that the taste of the coffee liquid is not constant because it is left to human hands. There were also points.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to stop the heat generation of the heater in response to the transfer of hot water from the inside of the lower container to the inside of the upper container. Therefore, it is possible to do so without leaving the user busy, the timing can be constant, and in particular, the transferred beverage does not stay longer than necessary in the upper container, It is an object of the present invention to provide an excellent beverage maker capable of further improving the taste and further automatically stopping the entire operation.

[Structure of the Invention] (Means for Solving Problems) The beverage manufacturing machine of the present invention is provided with a heater, a lower container, and an upper container, a fan for cooling the lower container, and hot water in the lower container. An operating mechanism that operates according to the boiling of
Another feature is that a timer is provided which is operated by the operating mechanism to switch the energization from the heater to the fan and cut off the energization to the fan after a predetermined time.

(Operation) According to the above means, the heat generation of the heater is automatically and realistically stopped, and the lower container is quickly cooled, and the operation of the fan is automatically stopped. It is done automatically by stopping.

(Embodiment) An embodiment in which the present invention is applied to a coffee making machine will be described below with reference to FIGS. 1 to 4.

First, in FIG. 1, reference numeral 11 is a base body, which is generally U-shaped, and a reflector plate 12 is provided on the bottom plate portion 11a thereof, and a heater 13 is placed above the reflector plate 12 by a spring 14. It is arranged to be biased to. Reference numeral 15 denotes a fan arranged in the columnar main body 11b of the base body 11 together with the timer 16 and a mill motor 17 and the like, and 18 denotes an air guide for guiding the wind generated by the fan 15 to the upper portion of the heater 13. On the other hand, reference numeral 19 denotes a mill case arranged on the main body portion 11b of the base body 11, in which a cutter 20 is arranged, and the cutter 20 is rotationally driven by the motor 17. 21 is a coffee powder guide extending from the outlet of the mill case 19, 22 is a filter provided at the outlet, 23 is a removable inner lid that closes the open portion of the upper surface of the mill case 19, and 24 is It is an openable / closable lid that also includes the lid 23 and covers the entire upper extending portion 11c of the base 11.

On the other hand, 25 is a support body composed of a leg portion 25a, a handle portion 25b, and a holder 25c, and 26 is a mouth portion 26a of the holder 25c of the support body 25.
It is a lower container that fits and holds the peripheral portion of the. On the other hand, 27 is an upper container, has a filter (not shown) at the bottom, and has a water pipe 27a extending downward from the filter part, and a filter stopper 28 is provided at the lower end of the water pipe 27a. The water pipe 27a is inserted into the lower container 26 in this state, and the packing 29 attached to the root of the water pipe 27a is fitted to the mouth 26a of the lower container 26, and the upper container 2
The whole 7 is tightly mounted and supported above the lower container 26 in a state of communication with the lower container 26. Reference numeral 30 denotes a vapor vent pipe inserted in the packing 29 together with a check valve (not shown). One end of the vapor vent pipe communicates with the inside of the lower container 26, and the other end thereof projects to the outside. Reference numeral 31 is an actuating mechanism provided so as to face the other end of the steam vent pipe 30, and more specifically, a tubular portion provided at a portion of the main body portion 11b of the base 11 facing the other end of the steam vent pipe 30. 32, a rod 33 slidably provided in the tubular portion 32, a coil 34 made of a shape memory alloy that deforms so as to push the rod 33 inward of the base 11, and the rod 33 is always provided from inside the base 11. It comprises a spring 35 for biasing it to be retracted and a lever 36 which is rotated by the rod 33 in its protruding state, and the lever 36 faces the start button 16a of the timer 16.

Here, in detail, the timer 16 also has a first switch 37 and a second switch 38 of a switching type as shown in FIG. 2, and the first switch 37 is normally a contact piece. a
-B is closed, and the operation of the start button 16a switches the contact pieces a-c. Also, the second switch 38 normally closes the contact pieces d-e, and the contact piece d- is operated in response to the knob 39 shown in FIG. 3 being operated from the "OFF" position to the "ON" position. f is switched so as to be closed, and at the same time, a force is stored in a power source such as a mainspring (not shown), and the force is released. The operation of returning to the closed state between e is started by the operation of the start button 16a together with the switching of the first switch 37. Further, in this case, when the second switch 38 returns to the state in which the contact pieces de are closed, the first switch 37 is also interlocked with the contact from the state in which the contact pieces ac are closed. It is designed to return to the state in which the parts a and b are closed. In addition, regarding the second switch 38, the contact piece d-g
When the knob 39 is operated from the "ON" position to the "MILL" position, the knob 39 is closed. When the knob 39 is released, the closed state is released, so that the contact piece d- Immediately returns to the state where the space between f is closed.

Reference numeral 40 in FIG. 2 is a plug that is plugged into an unillustrated power outlet, and one AC input terminal of the rectifier circuit 41 is connected to one of the plug terminals 40a of the plug. The contact piece c of the first switch 37 of the timer 16 is connected to the other AC input terminal via a voltage dividing resistor 42. or,
One of the insertion terminals 40a of the plug 40 has the heater 13
And the contact b of the first switch 37 is connected via a temperature fuse 43 that responds to abnormal heat generation of the same, and the contact g of the second switch 38 is connected via the motor 17 for the mill. are doing. Between the one DC output terminal of the rectifier circuit 41 and the other DC output terminal, the drive motor 15a of the fan 15 is connected to the capacitor 44 for noise prevention.
And are connected in parallel. And the first switch 37
The contact piece a of is connected to the contact piece f of the second switch 38,
Further, the contact piece d of the second switch 38 is connected to the other plug-in terminal 40b of the plug 40 to release the contact piece e.

Now, in the case of the one configured as described above, when using it, first insert the plug 40 into a power outlet (not shown) and connect it, then open the lid 24 and remove the inner lid 23 to remove the mill case.
Coffee beans, which is a raw material, are put in the container 19, and then the inner lid 23 is attached and the lid 24 is closed. On the other hand, from the lower container 26 to the upper container 27
And remove the lower container 26 from the holder 25c of the support 25. In this state, put a required amount of water in the lower container 26, and then place the lower container 26 in the holder 25c.
The upper container 27 is attached to the lower container 26 from above. Then, the lower container 26 is mounted on the heater 13 by holding the handle portion 25b, and the other end of the vapor vent pipe 30 is made to face the tubular portion 32 of the operating mechanism 31.
Then, the upper container 27 is set on the base 11, and the upper surface opening of the upper container 27 faces the coffee powder guide 21.

Next, when the knob 39 of the timer 16 is operated from the "OFF" position shown in FIG. 3 to the "ON" position, the second switch 38 shown in FIG. 2 closes the contact pieces d-f, Between the contact pieces a and b which are the normally closed contacts of the first switch 37 and the temperature fuse
The heater 13 is energized via 43. Therefore its heater 13
Generates heat, and heats the water stored in the lower container 26 to warm it. Then, when the knob 39 is operated from the "ON" position to the "MIL" position, the second switch 38 causes the contact piece d-
Since the space between f is opened and the space between the contact pieces d and g is closed, the heater 13
Is cut off to stop heat generation, and instead the motor 17 is energized and started. Therefore, the cutter 20 in the mill case 19 is rotated, whereby the coffee beans previously stored in the mill case 19 are crushed, and the crushed coffee beans are changed to coffee powder, and the sequential filter 22 is used. It is guided by the street coffee powder guide 21 and placed in the upper container 27. This mill operation is performed until the coffee powder in the upper container 27 is completely filled, and when the coffee powder is filled, the knob 39 is released. Then, the contact pieces d-g of the second switch 38 are opened and the contact pieces d-f are closed again.
Is cut off to stop the rotation of the cutter 27, and instead, the heater 13 is energized again to generate heat. Therefore, the heating of the water (hot water) in the lower container 27 is restarted, whereby the hot water in the lower container 27 will soon be boiled, which causes the vapor pressure in the lower container 26 to increase rapidly, Since the hot water in the lower container 26 is strongly pressed, the hot water is raised by the vapor pressure into the upper container 27 through the water pipe 27a and the filter (not shown), and the hot water is heated in the upper container 27 to the coffee Mix with powder to make coffee liquor.

On the other hand, at this time, the vapor in the lower container 26, which has been gradually ejected from the vapor vent pipe 30 until now, is suddenly ejected and its temperature rises. By hitting the coil 34 made of a memory alloy, the coil 34 is deformed and in this case stretched, and the rod 33 is pushed inward of the base 11 against the spring force of the spring 35. Therefore, the lever 36 is rotated and the start button 16a of the timer 16 is pressed. Therefore, here, the first switch 37 is switched so as to open the contact pieces a-b and close the contact pieces a-c, turn off the power supply to the heater 13, and replace the fan 15 with it. In particular, the drive motor 15a for this is energized. Therefore, the fan 15 is driven to generate wind and send it along the air guide 18 to feed the lower container 26 and the heater.
Spray on 13. As a result, the lower container 26 is cooled and the vapor pressure inside the lower container 26 is lowered to cause a vacuum action, so that the coffee liquid in the upper container 27 falls into the lower container 26 through a filter and a water pipe 27a (not shown). It is stored in the container 27. Here, from the viewpoint of improving the taste of the coffee liquid, it is necessary to wait for about 2 minutes before the coffee liquid in the upper container 27 is extracted to the lower container 26, and the forced cooling by the fan 15 is performed. Stipulates that it will be most effective in the two minutes. By operating the operating mechanism 31, the start button 16a of the mimer 16 is operated.
When is pressed, as described above, the first switch 37 is switched so as to close the contacts a-c, and at the same time, the closing operation between the contacts d-f of the second switch 38 is performed. The power of the power source, such as a mainspring (not shown), which is stored along with the above, is released, so that the second switch 38 closes between the contact pieces de after two minutes described above.
The power supply to the fan 15 is cut off to complete the operation. The state of the operation during this period is shown in FIG. This 4th
In the figure, the shaded area indicates that the operation is in progress, and the other blank areas indicate that the operation is not in progress. After the extraction of the coffee liquid as described above, the lower container 26 and the upper container 27 are held by the base 1 while holding the handle portion 25b of the support 25.
1 above, remove the upper container 27 from the position above the lower container 26, and then hold the handle 25b again to lower the container 2
Tilt 6 to transfer the coffee liquid to a coffee cup (not shown).

As described above, according to this embodiment, the operation mechanism 31 and the timer 16 automatically stop the heat generation of the heater 13 in response to the hot water being transferred from the lower container 26 to the upper container 27. It does not require manual labor like the conventional one, and thus the user can be freed from the trouble of its operation, and at the same time, it can be released from the troublesomeness that is always attached to the coffee making machine, It can be convenient. Further, in this case, the operation of the operating mechanism 31 and the timer 16 is performed at the time when the hot water in the lower container 26 is boiled and the hot water is actually transferred, that is, it is performed according to the reality.
Therefore, the timing of stopping the heat generation of the heater 13 can be made constant, and the taste of the coffee liquid can be made constant accordingly. Furthermore, when the actuating mechanism 31 and the timer 16 operate as described above, the fan 15 is also driven at the same time to cool the lower container 26, which promotes the decrease of the vapor pressure in the lower container 26, and It is also possible to prevent the coffee liquid from staying in the container 27 longer than the above required time of, for example, 2 minutes. Therefore, the concentration of the coffee liquid can be moderately increased without excessively increasing, and the coffee liquid is always delicious and drinkable. can do. In addition, the entire operation is automatically stopped by the automatic stop of the fan 15 by the timer 16, so that the user's operation for it is unnecessary, and the operation continues unnecessarily for a long time. It is also possible to prevent the coffee liquid in the lower container 26 after extraction from being cooled and becoming unpleasant by continuing the operation more than necessary, especially in the operation of the fan 15.

The present invention is not limited to the embodiments described above and shown in the drawings, and the present invention is not limited to coffee making machines as a whole and may be similarly applied to those making tea, for example. . Further, in any of the beverage manufacturing machines, a mechanism for crushing the raw material such as coffee beans may not necessarily be provided, and the operation mechanism 31 exemplified by using the shape memory alloy is other than that. For example, another structure using a thermostat or the like may be used.

[Effects of the Invention] As is clear from the above description, the beverage manufacturing machine of the present invention is
A heater, a lower container capable of storing water heated by the heater, an upper container that communicates with the lower container through a water pipe and a filter and stores a raw material such as coffee powder, and a fan that cools the lower container, And an operating mechanism that operates in response to boiling water in the lower container, and a timer that is operated by the operating mechanism to switch the energization from the heater to the fan and cut off the energization to the fan after a fixed time. It does not require manual labor to stop the heat generation of the heater in response to the transfer of hot water from the lower container to the upper container, and thus without the need to keep the user busy. In addition, it is possible to maintain the timing constant, and in particular, the transferred beverage does not stay in the upper container longer than necessary, which can further improve the taste of the beverage. And further exhibits excellent effects that such can also be prevented that such that the stop of the operation of the whole, resulting tighten performed in an automatic coffee liquid in the lower vessel allowed to cool is made unpalatable after extraction.

[Brief description of drawings]

1 to 4 show an embodiment in which the present invention is applied to a coffee making machine, and FIG. 1 is a vertical sectional front view of the entire structure thereof,
FIG. 2 is an electric circuit diagram, FIG. 3 is an enlarged front view of the timer knob portion, FIG. 4 is a time chart of the entire operation, and FIG. 5 shows the entire conventional siphon-type coffee making machine. FIG. In the figure, 13 is a heater, 15 is a fan, 16 is a timer, 26 is a lower container, 27 is an upper container, 27a is a water pipe, 30 is a steam vent pipe, 31 is an operating mechanism, 37 is a first switch, and 38 is The second switch, 39, indicates the knob.

Claims (1)

[Claims] 1. A lower container provided with a heater, a lower container capable of storing water heated by the heater, and an upper container which communicates with the lower container through a water pipe and a filter and stores a raw material such as coffee powder. A cooling fan, an operating mechanism that operates in response to boiling water in the lower container, and an energization of the heater to switch the energization of the fan to cut off the energization of the fan after a certain time. A beverage manufacturing machine comprising a timer.