JPS5849710Y2 - coffee drip - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coffee drip that has an improved hot water path through which generated hot water passes.

Conventionally, in coffee drip, water supplied from a water storage device is heated and boiled with a heater to produce hot water, and coffee grounds are stored in a public bath through a hot water path such as a hot water supply pipe at the boiling pressure. There is a device that is supplied into a filter to generate coffee liquid, which is stored in a bottle below the filter.

In this type of coffee drip, the above-mentioned start and stop of the supply of hot water are generally performed by starting and stopping the heat generation of the heater, respectively.

However, with this structure, there is not much of a problem when starting the supply of hot water, but when stopping the supply of hot water, residual heat remains in the heater and its surroundings even if the motor stops generating heat. Because it lasts for a while, the supply of hot water is not stopped at the same time as the heater stops generating heat, or in other words, the supply of hot water is not stopped at the same time as the power to the heater is cut off to stop the supply of hot water. There was the inconvenience of being rejected.

Due to this, even if a user realizes that they have forgotten to attach a filter or the like and wants to quickly stop the hot water supply, they are unable to do so and the hot water continues to splatter. Not only did this have the problem of making the floor etc. extremely wet, but it was also extremely dangerous, especially since there was a risk of burns.

Furthermore, since the public bath is supplied according to the generation of hot water,
While hot water is being generated, coffee liquid is being generated and stored in the bottle one after another. Therefore, it is not possible to stop the production of coffee liquid without stopping the hot water generation, and therefore the hot water generation is stopped. There was also a problem in that the coffee liquid that had been generated and stored in the bottle could not be taken out as desired.

The present invention was developed in view of the above circumstances, and its purpose is to quickly and reliably stop the supply of hot water.
Therefore, it is an object of the present invention to provide a coffee drip that does not wet tables, floors, etc., has no risk of burns, and can take out coffee liquid as desired even while hot water is being produced.

An embodiment of the present invention will be described below with reference to the drawings.

First, in Fig. 1, 1 has a mounting table 2 on the right half of the figure.
The base has water reservoirs 3 on the left half thereof, and a heating body 4 is attached to the upper opening of the mounting table 2.

As shown in FIG. 2, the heating body 4 includes a thermally conductive main body 5 having a substantially cylindrical shape with a bottom, and a heat insulating material 6 having a low melting point enclosed in a hanging portion of the bottom wall. A water pipe 7 is buried in a meandering manner in a thick wall portion of the peripheral wall of the main body 5, and a heater 8 is buried in a meandering manner along the water pipe 7. The part has a vertical notch approximately in the center here,
This notch 5a prevents coffee liquid and water from accumulating on the inner bottom of the main body 5 and facilitates cleaning operations.

9 is a water supply pipe, one end of which is connected to the water supply port 3 of the water reservoir 3.
a, and the other end is connected to a water receiving port (not shown) of the water pipe 7, so that the water in the water reservoir 3 is supplied into the water pipe 7.

On the other hand, reference numeral 10 designates a bottle for storing coffee liquid, which is removably inserted into the heating element 4.
A filter 12 having a filter 11 attached to the lower part is removably attached to the upper opening edge of the filter 0.

Now, 13 is a hot water passage running from the hot water pipe 149 branch case 15 and lid 16, which will be described in detail below.
The branch case 15 has a so-called three-sided hollow container shape with openings 17, 18 and 19 formed at the left, right and lower parts of the figure, respectively, and the branch case 15 is placed on the upper right side of the water reservoir 3. Of the openings 17, 18 and 19 mentioned above, the left opening 17 as an auxiliary hot water passage is installed so as to face the inside of the water reservoir 3, so that the left opening 17 communicates with the inside of the water reservoir 3. .

Next, the hot water pipe 14 has one end (not shown) connected to an outlet (not shown) of the water pipe 7, and the other end connected to the lower opening 19 of the branch case 15 described above.

Furthermore, the lid 16 is composed of a hollow and flat main body part 20 and a connection port part 21 formed on the left edge of the main body part 20 and serving as a connection part that can be elastically deformed, for example, in the radial direction.
A large number of hot water supply holes 22 are formed on substantially the entire lower surface of the connecting port 21, and an annular protrusion 23 is formed on the peripheral edge thereof, and a communicating port 21a is formed on the lower surface of the end of the connecting port 21.

The lid 16 is connected to the branch case 1 by passing its connection port 21 into the right opening 18 of the branch case 15 in a fluid-tight manner.
5, and on the other hand, the main body part 20 is mounted on the filter 12 by removably fitting the above-mentioned protrusions 23 into the upper opening edge of the filter 12, and the main body 20 is inserted into the filter 12 in a detachable manner. The part beyond the branching case 15 as a branching part of the hot water channel 13, that is, the iron lid 16 serves as a removable lid for the filter 12.

24 is the hot water passage 13. Among these, for example, there is a valve housed in a branch case 15, which includes a valve body 25 disposed to slide in the branch case 15 laterally and in a fluid-tight manner;
A guide rod 2 is formed to be inserted into the valve body 25 with a gap through which hot water can pass through the left opening 17 of the branch case 15.
6, and the guide rod 26 guides the sliding movement of the valve body 25 in the lateral direction.

27 is a compression coil spring housed in the branch case 15 together with the above-mentioned valve 24, and the compression coil spring 27 causes the valve body 2 to
5 is always pressed in the direction of the right opening 18.

Here, the valve 24 is moved to the left opening 17 side and the lower opening 19 between the left opening 17 and the left opening 17 by sliding in the lateral direction as described above.
It is movable to the right opening 18 side opposite to the left opening 17, and now that the connection opening 21 of the previous lid 16 has been inserted into the branch case 15, the connection opening At the 21 end, the valve body 25 is pushed toward the left opening 17 against the elastic force of the compression coil spring 27, so that the entire left opening 1
It has been moved to the 7 side.

Therefore, at this time, the valve 24 is connected to the right opening 18 and the filter 1.
2 is open, and the auxiliary hot water passage leading into the water reservoir 3, that is, the left opening 17 is closed.

Note that 28 is the outer bottom of the heating body 4, especially the heat insulating material 6.
This is a thermoswitch installed near the heater 8, which senses the operating temperature on the high temperature side and opens the energizing path to the heater 8, and senses the operating temperature on the low temperature side and closes the energizing path. The operating temperature on the high-temperature side is set to the temperature at which the water in the water pipe 7 boils completely and enters the so-called dry cooking state, while the operating temperature on the low-temperature side is set to a temperature below the freezing point of the heat insulating material 6. Set the temperature to a slightly lower temperature.

29 is a check valve attached to the water supply port 3a of the water reservoir 3.

Next, to explain the operation, first, fill the required amount of water in the water reservoir 3, store coffee powder in the filter 12, and then
In the state shown in the figure, when a power switch (not shown) is turned on and electricity is supplied to the heater 8, the heater 8 generates heat, thereby heating and boiling the water in the water pipe 7 led from the water reservoir 3. generate.

In FIG. 1, as mentioned earlier, the valve 24 opens the hot water passage 13 and closes the left opening 17, which is the auxiliary hot water passage. The hot water generated by heating and boiling the water in the water pipe 7 is supplied into the filter 12 from the hot water supply hole 22 through the hot water passage 13 in the open state by its boiling pressure, and the filter 1
A coffee liquid is produced by passing through the coffee powder in 2.

The coffee liquid flows from the filter 12 to the lower bottle 10.
It is dripped into the interior and stored here, and receives the heat of the heating element 4 here and is kept warm.

Even at the beginning, this heat retention is carried out by the heat received directly from the heater 8 and the heat received from the peripheral wall of the main body 5 surrounding the bottle 10 via an air layer heated thereto, so it is very effective. It is done.

It should be noted that the heat insulating material 6, which is in a solidified state at the initial stage of heat generation by the heater 8, also receives heat from the heater 8 and soon changes to a molten state.

The water led from the water reservoir 3 into the water pipe 7 is sequentially heated and boiled, and is sequentially supplied as hot water into the filter 12, so that the water in the water reservoir 3 finally runs out and this At this point, the supply of hot water to the filter 12 is stopped and the production of coffee liquid is terminated, while the water pipe 7 enters a so-called dry cooking state and the heating element 4
temperature increases more rapidly than before.

Then, the thermoswitch 28 senses the operating temperature on the high temperature side and opens, cutting off the power supply to the heater 8.

Thereafter, the coffee liquid in the bottle 10 is kept warm by the natural heat dissipation of the main body 5 of the heating element 4, and the heat accumulated in the heat insulating material 6 which has been melted by the heating of the heater 8 is gradually dissipated. This also keeps the coffee liquid warm,
Moreover, even if the heat insulating material 6 reaches its freezing point, it maintains a constant temperature (freezing point) until the solidification is completed, so the coffee liquid in the bottle 10 remains at a constant temperature for a long time even after the heater 8 stops generating heat. It is kept warm.

When the heat insulating material 6 solidifies and the heating element 4 also reaches a temperature below its freezing point, the thermoswitch 28 senses the lower operating temperature and starts energizing the heater 8, causing the heater 8 to generate heat. The coffee liquid is kept warm by the heat generated by the heater 8.

At this time, the heat of the heater 8 is taken away as heat of fusion by the heat insulating material 6 at the initial stage of heat generation, so there is no sudden temperature rise of the heating body 4 as a whole. It is possible to reduce the temperature ripple in temperature control and to maintain stable heat retention, thereby making it possible to maintain the temperature of the coffee liquid well.

The amount of coffee liquid stored in the bottle 10 can be visually observed through the notch 5a of the heating element 4.

By the way, if you want to quickly stop the supply of hot water, that is, the production of coffee liquid during the above-mentioned coffee liquid generation, you can use the lid 16.
The main body part 20 of the first
Raise it as shown by the two-dot chain line in the figure to remove it from the filter 12, and in that state, remove the connection port 21 from the branch case 15.

The removed state is shown in FIG.
1 is no longer pressed, the valve 24 receives the spring force of the compression coil spring 27 and is slid toward the right opening 18, closing the right opening 18, and thus opening the hot water passage 13. This ensures that the supply of hot water to the filter 12 is stopped.

At the same time, the left opening 17 is opened by displacing the valve 24 toward the right opening 18, and as a result, the hot water generated in the water pipe 7 passes through the left opening 17 and is stored. It is returned to the container 3 one after another.

In addition, in order to start supplying hot water to the filter 12 again, the lid 16 may be attached to the filter 12 and the branch case 15 in the reverse procedure to that described above.

In this way, since the hot water passage 13 can be opened and closed by the valve 24, the supply of hot water can be suddenly stopped, and this can be done without stopping the generation of hot water. The coffee liquid can be taken out as desired even when the hot water is inside the water tank 3. Therefore, the coffee liquid can be taken out as desired without waiting for the production of hot water to finish, that is, the water in the water reservoir 3 is exhausted. When starting the supply of hot water, hot water can be quickly supplied without degrading the flavor of the coffee liquid.

Furthermore, even if hot water is generated with the filter 12 and bottle 10 forgotten to be attached, the valve 24
Since the water can be closed, the supply of hot water can be stopped, thereby minimizing the chance of wetting tables, floors, etc., and minimizing the risk of burns.

In particular, the left opening 17 leading to the water reservoir 3 is connected to the branch case 15.
Therefore, a valve 24 is provided in the hot water passage 13 and closes the left opening 17 when the hot water passage 13 is opened.
Since the branch case 15 is provided in such a way that the left opening 17 is opened when the hot water passage 13 is blocked, the hot water generated in the water passage pipe 7 can be returned to the water reservoir 3 when the hot water passage 13 is blocked. As a result, we ended up heating water with a water density of 3.
Hot water can be efficiently generated in the subsequent water pipe 7,
Therefore, not only the heat generated by the heater 8 when the hot water passage 13 is blocked is not wasted, but also the hot water generation time can be shortened.

In addition to this, the part beyond the branch case 15 is removed from the filter 1.
Since the valve 24 is configured to open and close the hot water passage 13 by attaching and removing the lid 16 to the branch case 15, the lid 16 can be attached to and removed from the branch case 15, respectively. Only after the iron lid 16 is attached can the supply of hot water be started, and since the lid 16 forms the lid of the filter 12, it is necessary to attach the iron lid 16 to the filter 12 and attach the filter 12 to the bottle 10. Filter 12 only when installed correctly
This can even more reliably prevent hot water from scattering due to forgetting to attach the lid 16, filter 12, and bottle 10.

Furthermore, in the above embodiment in which the connection portion of the lid 16 with the branch case 15, that is, the connection port portion 21, is elastically deformable, for example, if the filter 12 and the bottle 10 are not attached, the lid 16 may be
When only the connector is attached, the connection port 21 portion of the lid 16 bends under the weight of the main body portion 20, as shown in FIG. The hot water passage 13 is closed.

Therefore, even in such a case, splashing of hot water can be reliably prevented.

Moreover, as mentioned above, the weight of the main body 20 causes the connection port 2 to
1 retreats from the branch case 15 due to its bending and opens into the valve 24.
Since the pressure on the valve 24 is partially released, the valve 24 receives the elastic force of the compression coil spring 27 and opens the left opening 17.
Therefore, the hot water produced in the water pipe 7 is returned to the water reservoir 3 here as well.

Incidentally, in order to obtain the effects specific to the above-mentioned embodiments, it is sufficient to have only those structures that are necessary. Therefore, in the case of the present invention, the main point is that the hot water is generated in the hot water passage leading to the filter. It would be a good idea to have a valve to open and close it.

As is clear from the above description, the present invention heats water supplied from a water reservoir to produce hot water, and supplies the hot water through a hot water passage into a filter containing coffee powder. In a coffee drip that produces coffee liquid, an auxiliary hot water path leading to the water storage device is provided branching from the hot water path, and a portion of the hot water path beyond the branch is used for attaching and detaching the filter. The lid is removably attached to the branch part, and when the lid is attached to the branch part, the hot water passage is opened, and the auxiliary hot water passage is closed, and the auxiliary hot water passage is closed and hot water is poured by removing it. This system is characterized by being equipped with a valve that closes the hot water passage and opens the auxiliary hot water passage, thereby making it possible to quickly and reliably stop the supply of hot water according to the user's will, and thereby preventing the hot water from being supplied. It is possible to reliably prevent the splashing of coffee for a long time, minimize the chance of wetting tables, floors, etc., eliminate the risk of burns, and furthermore, it is possible to take out the coffee liquid as desired even while hot water is being generated. Therefore, the coffee liquid can be drunk even while the hot water is being produced, and when the hot water supply is stopped and the hot water supply is restarted, hot water can be quickly supplied without degrading the flavor of the coffee liquid. Furthermore, when the hot water passage is blocked, hot water can be returned to the water storage device, and as a result, hot water can be generated efficiently thereafter, and the electricity cost required for hot water generation can be reduced.
The hot water generation time can also be shortened, and hot water supply can only be started after the lid is attached to the branch.Moreover, since a part of the hot water passage forms the lid, the iron lid can be attached to the filter and the Hot water can be supplied to the filter only when the filter is installed correctly with the filter attached to the bottle, which is practical as it further prevents hot water from scattering due to forgetting to attach the lid, filter and bottle. It is possible to provide a coffee drip that exhibits various excellent effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional side view of the whole, Fig. 2 is a transverse sectional view taken along line II-II in Fig. 1, and Fig. 3 shows a lid, a filter, and a bottle. FIG. 4 is a vertical side view with the lid removed, and FIG. 5 is a vertical side view with the filter and bottle removed. In the figure, 3 is a water reservoir, 4 is a heating element, 6 is a heat insulator, 12 is a filter, 13 is a hot water passage, 14 is a hot water pipe, 15 is a branch case (branch part), 16 is a lid (branch part) 17 is the left opening (auxiliary water passage), 21 is the connection port (connection part)
, 24 is a valve.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Water supplied from a water storage device is heated to produce hot water, and the hot water is passed through a hot water passage and supplied into a filter containing coffee powder to produce coffee liquid. An auxiliary hot water passage leading to the water storage device is provided branching off from the hot water passage, and a portion of the hot water passage beyond the branch is a removable lid of the filter. The lid is detachably attached to the branch part, and the lid is attached to the branch part to open and close the hot water passage, and the auxiliary hot water passage is closed, and when removed, the hot water passage is closed. A coffee drip characterized by having a valve for opening an auxiliary hot water passage. 2. The coffee drip cup according to claim 1, wherein the lid is elastically deformable at the connecting portion with the branching portion, and the connecting portion is closed by the elastic deformation.