JPH08164074A - Drink extractor - Google Patents

Abstract

PURPOSE: To provide drink extracting equipment without risk of a scald, etc., by miss-operation of an extractor during drink extraction and with good operability, by displaying the extractor in extraction securely in low cost with a simple configuration. CONSTITUTION: On the outer face of an extractor 10, a thermolabel 18, for instance to change color reversibly at 65 deg.C, is stuck to show clearly the extractor in extraction during the high temperature period from the beginning of hot water pouring into the extractor 10 to the end of finishing the drink flowing down by the thermolabel 18 changing the color, for instance from red to black. When the extraction is completed and the temperature of the extractor 10 lowers to temperature lower than 65 deg.C, the returning temperature of the thermolabel 18, the thermolabel 18 is to return from black to red.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage extraction device for preparing a beverage from a beverage raw material with hot water, and more particularly to a display during beverage extraction.

[0002]

2. Description of the Related Art In a beverage extractor for extracting a beverage from a beverage material using hot water, if the extractor is mistakenly removed during the beverage extraction, the sprinkling hot water may spout out of the extractor. The hot water accumulated inside may be spilled to the outside due to the shock of the movement of the extractor, and the operator may be injured by his / her hands, etc. In particular, the risk of burns due to the latter has been pointed out.

Many conventional beverage brewing devices do not have the function of indicating that the beverage is being brewed, and the "during brewing" of the beverage leaks steam or the beverage from the downflow hole at the bottom of the brewing machine. It was necessary to carefully check the presence or absence of spillage of the extract and it was inconvenient to remove the extractor.

In recent years, in order to eliminate such inconvenience, a display mechanism of "extracting" has been proposed in Japanese Patent Laid-Open No. 3-18322. In this structure, as shown in FIG. 3, a water sprinkler d is provided at the other end of a water guiding pipe (that is, a hot water supply pipe) c led out from an upper portion of a container (that is, a hot water supply tank) b provided with a heating element a. A basket (that is, an extractor) e is detachably provided under the sprinkler d. A heat transfer plate f is fixed to the water guide pipe c, and a temperature sensing thermostat g is provided to detect the temperature of the heat transfer plate f.

Then, the temperature rise of the water pipe c heated by hot water supply at the time of beverage extraction is sensed through the heat transfer plate f, and the neon light bulb h electrically connected to the temperature sensing thermostat g is turned on. The neon light bulb h is turned off due to the temperature drop of the water conduit c accompanying the end of hot water supply.

That is, the fact that "the beverage is being extracted" is lit by the neon light bulb h. However, in the method of detecting such a temperature change of the water conduit (that is, the hot water outlet pipe) c and displaying “extracting” by lighting with the neon light bulb h, the temperature of the water conduit c decreases immediately after the hot water supply is finished, and the beverage The neon light bulb h indicating that extraction is in progress may be turned off.

However, at the end of this hot water supply, the extractor e
A large amount of hot water j is accumulated on the beverage raw material i inside, and it takes a certain amount of time for this hot water j to extract components from the beverage raw material i and to be completely discharged from the bottom flow hole (in the case of coffee). It takes 3 to 4 minutes), and during this period, the neon light bulb h
Was turned off, and there was a risk of erroneous display as if the extraction was completed even though the beverage was still being extracted.

Although a method of solving this problem by appropriately selecting the set temperature of the temperature sensing thermostat g has been disclosed, in practice, even if this method is used, the outside air temperature changes or the load is changed. When the situation changes, the temperature of the water conduit c may be affected, and it may happen that a message indicating that the extraction is completed even though the extraction is in progress is displayed.

In addition, this system requires many parts such as a temperature sensing thermostat g, a heat transfer plate f, a neon light bulb h, and a lamp resistor, which is expensive and complicated and requires time and labor for assembling. .

[0010]

As described above, according to the conventional display method of detecting the temperature change of the water conduit (that is, the hot water outlet pipe) and displaying "extracting" in the lighting state, the beverage is being extracted while it is being extracted. There is a possibility that an erroneous display may be displayed as if the process had been completed, and the original purpose of preventing accidental removal of the extractor to cause burns during extraction cannot be sufficiently achieved.

Further, there are problems that many parts are required, the cost is high, the structure is complicated, and the assembly is troublesome.
The present invention has been made based on the above circumstances, has a simple structure and is inexpensive, and reliably displays the beverage during extraction, and thus there is no risk of burns or the like due to erroneous operation of the extractor during beverage extraction. An object of the present invention is to provide an easy-to-use beverage extraction device.

[0012]

As a means for solving the above problems, the present invention provides a hot water supply tank, a hot water discharge pipe led out of the hot water supply tank, and a sprinkler provided at the other end of the hot water supply pipe. And a beverage extractor detachably provided under the sprinkler, wherein a thermolabel that reversibly changes color with temperature is attached to the outer surface of the beverage extractor. Is.

[0013]

According to the beverage extractor of the above-mentioned means, the thermolabel which is reversibly discolored by the temperature attached to the outer surface of the extractor is discolored by the temperature rise of the extractor accompanying the extraction of the beverage and is being extracted. Is displayed. Since the color of the extractor changes depending on the temperature of the extractor to indicate that extraction is in progress, there is no erroneous operation, and there is no danger of burns, etc.
Further, since one thermo label is simply attached to the outer surface of the extractor, the structure can be greatly simplified and the cost can be reduced as compared with the conventional lamp lighting display, and the risk of failure is small. Can be one.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a coffee brewing device as a beverage brewing device. In the figure, the right side corresponds to the front of the device.

In FIG. 1, reference numeral 1 denotes a housing as a device body having a U-shaped side surface. A hot water supply tank 2 is provided in the housing 1, and a hot water supply pipe 4 is led out from an upper portion of the hot water supply tank 2. The water sprinkler 6 is connected to the other end of the downward direction. Immediately below the sprinkler 6, an extractor 10 having a downflow hole 8 at the bottom is suspended and retained by a pair of rails (not shown) so as to be slidably attached and detached in the left-right direction in FIG.

Further, the casing 1 below the extractor 10
A heat insulating heat plate 12 is provided on the heat insulating heat plate 12, and a beaker 14 with a hand is detachably mounted on the heat insulating heat plate 12.
Further, as shown in FIG. 2, on the outer surface of the extractor 10, a thermolabel 18 which reversibly changes color at 65 ° C. is attached near the left side of the handle 16.

Next, the operation of extracting coffee with this apparatus will be described. First, the filter 20 and an appropriate amount of coffee powder 22 are set in the extractor 10, and the extractor 10 is inserted into a rail (not shown) from the front of the device and set right under the sprinkler 6.

Next, when the hot water supply operation is performed, hot water (about 95 ° C.) is sent out from the hot water supply tank 2, and the sprinkler 6 starts to sprinkle the coffee powder 22 in the extractor 10 through the hot water discharge pipe 4. When the sprinkling of hot water begins, the inside of the extractor 10 is immediately filled with high-temperature steam, and the bottom of the extractor 10 comes into contact with the hot water, so that the temperature of the extractor 10 rises rapidly. The existing thermo label 18 turns black. The hot water supplied to the extractor 10 comes into contact with the coffee powder, extracts the coffee component, and flows down from the downflow hole 8 as coffee liquid.

When a predetermined amount of hot water has been supplied, the sprinkling of water from the sprinkler 6 is stopped, but a large amount of hot water is accumulated in the extractor 10 and gradually decreases as it flows down as coffee liquid. However, since the extractor 10 itself is in contact with the residual hot water, the high temperature state is maintained, the color of the thermolabel 18 is kept black, and the flow of coffee from the extractor 10 is completed, that is, when the extraction is completed. Temperature drops rapidly,
When the color return temperature of the thermolabel 18 is lower than 65 ° C. or lower, the thermolabel 18 returns from black to red.

The coffee liquid extracted by the extractor 10 is stocked in the beaker 14 with a hand and kept warm by the heat retaining plate 12. In the above description, the thermo label 18
Has been described as only the color change from red to black, but by making the thermolabel 18 so that the word "extracting" remains undiscolored even when the temperature rises as shown in FIG. Although it is not visible because it is hidden in the red ground, the parts other than the letters turn black when the temperature rises.As a result, the letters "Extracting" can be highlighted in red, and the fact that the extraction is in progress is clearly displayed in letters. can do. It is also possible to display pictorial symbols instead of letters.

As described above, the temperature of the extractor 10 is
Since the hot water in the inside starts to drop rapidly after it completely flows out, the thermo label 18 will return to the color (red) at room temperature a little later than the end of the actual extraction, a little longer than during the actual extraction. The display will be "medium", but this is a deviation from the safety side for the purpose of preventing burns caused by removing the extractor 10 during extraction, and does not impair the intended effect.

In the above embodiment, coffee extraction by the coffee extraction device is taken as an example.
The present invention is not limited to this, and can be applied to other similar beverage extraction devices such as black tea and green tea.

Further, the discoloring temperature due to the temperature rise of the thermolabel is not limited to 65 ° C., but should be set to an optimum temperature according to the hot water supply temperature, the size and material of the extractor, etc. In addition, it goes without saying that the present invention can be variously modified and implemented without departing from the spirit of the present invention.

[0024]

As described above, according to the present invention,
The fact that the beverage extractor is extracting is detected by the change in the temperature of the extractor, and is displayed by the color change of the thermo label attached to the outer surface of the extractor. The display inside does not disappear, and it is always stable and can display "Extracting" without fail, and the display of "Extracting" is not only a simple discoloration display of the thermo label, but also characters and figures are applied by applying discoloration. Since it can be displayed, it is possible to provide a safe and easy-to-use beverage brewing device that allows easy and reliable visual confirmation that brewing is in progress, and prevents accidental removal of the brewer.

In addition, in this system, "extracting" can be displayed with only one thermo label, no other electric parts are required, the structure is extremely simple, and there is no fear of failure. It has an effect that it can be implemented at low cost.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a coffee brewing apparatus as one embodiment of the present invention.

FIG. 2 is a perspective view of the extractor of FIG. 1 alone.

FIG. 3 is a schematic sectional view of a conventional beverage extraction device.

[Explanation of symbols]

1 ... Housing, 2 ... Hot water supply tank, 4 ... Hot water outlet pipe, 6 ... Sprinkler,
8 ... Downflow hole, 10 ... Extractor, 12 ... Insulating heat plate, 14 ... Beaker with hand, 16 ... Handle, 18 ... Thermolabel, 20
... filter, 22 ... coffee powder.

Claims (2)

[Claims] 1. A hot water supply tank, a hot water supply pipe led out of the hot water supply tank, a sprinkler provided at the other end of the hot water supply pipe, and an extractor detachably provided under the sprinkler. A beverage extractor comprising: a beverage extractor, wherein a thermolabel that reversibly changes color depending on temperature is attached to an outer surface of the extractor. 2. The beverage extraction device according to claim 1, wherein the thermolabel is made so as to visualize a figure or a character by a color change when the temperature exceeds a predetermined temperature.