JPH0751504A - Extractor - Google Patents

Abstract

PURPOSE:To simplify the structure of an opening and closing system to communicate an air-tight container and an extraction container and cut off them and also to make washing of the system easy. CONSTITUTION:An elastic sheet 10 which shuts the communication between an extraction container 3 and an air-tight container 2 at the time the air-tight container 2 is atmoshperic pressure or higher and allow communication between the extraction container 3 and the air-tight container 2 at the time the pressure of the air-tight container 2 is decreased is set in a filter part 4 which is attached to the bottom of the extraction container 3, and a check valve 12 to discharge steam generated by heating a liquid in the air-tight container 2 to the extraction container 3 is installed in the elastic sheet 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extractor, and more particularly to a coffee siphon type extractor in which an airtight container and an extraction container are airtightly connected.

[0002]

2. Description of the Related Art As an extractor of this kind, for example,
As disclosed in Japanese Patent No. 968993, an extraction container is airtightly connected to an airtight container through a connecting pipe, a filter for filtering a liquid to be extracted is provided in the extraction container, and steam generated by heating a liquid in the airtight container is generated. Is discharged to the extraction container, the airtight container is cooled, and the extraction liquid filtered by a filter is sucked into the airtight container by negative pressure suction by depressurization in the airtight container. As an opening and closing mechanism for
A valve that moves up and down with an electromagnet is provided below the filter.

[0003]

However, the valve that moves up and down by the electromagnet has a complicated structure and is difficult to clean, which is disadvantageous in terms of cost. In addition, the performance of the airtight container and the liquid to be extracted may be deteriorated and malfunction may occur due to the influence of heating.

Therefore, an object of the present invention is to provide an extractor having an opening / closing mechanism which has a simple structure, is easy to wash, is inexpensive, and is not easily affected by heat.

[0005]

To achieve the above object, the present invention provides an airtight container, an extraction container airtightly connected to the airtight container, and a filter for filtering the liquid to be extracted in the extraction container. Having an opening / closing mechanism for connecting / disconnecting the extraction container and the airtight container, discharging the water vapor generated by heating the liquid in the airtight container to the extraction container, cooling the airtight container to cool the airtight container In the extractor for extracting the extract liquid filtered by the negative pressure suction by the reduced pressure into the airtight container, the opening / closing mechanism shuts off the communication between the extraction container and the airtight container when the airtight container is at the normal pressure or higher, The elastic sheet that connects the extraction container and the airtight container when the container is decompressed is provided with a check valve for discharging the water vapor in the airtight container to the extraction container.

[0006]

[Operation] According to the above configuration, when the airtight container is at normal pressure or above normal pressure, the elastic sheet blocks the communication between the extraction container and the airtight container, and heats the liquid in the airtight container to generate water vapor. Then, the water vapor is discharged from the check valve into the extraction container, and the liquid to be extracted in the extraction container is heated and stirred.

When the inside of the airtight container is cooled by stopping the heating of the liquid in the airtight container, the airtight container is decompressed,
The elastic sheet is bent by negative pressure suction due to decompression, the extraction container and the airtight container are communicated with each other, and the liquid to be extracted in the extraction container is filtered by the filter to extract the extraction liquid into the airtight container.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first embodiment of the present invention will be described below in more detail with reference to the embodiments shown in FIGS.

The extractor 1 comprises an airtight container 2 and the airtight container 2
The airtight container 2 has a connection port 2a for the extraction container 3 on the upper part, and the extraction container 3 has a mounting part 3a for the filter part 4 on the bottom part. A connecting pipe 3b inserted into the connecting port 2a is provided at a lower portion of the connecting pipe 3b, and a packing 3c for hermetically connecting the connecting pipe 3a to the outer periphery of the connecting pipe 3b is fitted.

The filter part 4 is detachably provided on the mounting part 3a, and has a ring-shaped casing 6 on which an O-ring 5 is fitted, and a circular filter paper 7 for filtering the liquid to be extracted in the extraction container 3.
A circular metal perforated plate 8 for supporting the filter paper 7, an inner ring 9 for adhering the filter paper 7 and the perforated plate 8 to the upper edge 6a of the casing 6, and communication between the extraction container 3 and the airtight container 2. It is composed of a silicon elastic sheet 10 for shutting off and a lower ring 11 sandwiching the elastic sheet 10 with an intermediate ring 9, and the filter paper 7, the eye plate 8, the intermediate ring 9, the elastic sheet 10 and the lower ring 11 are , And is detachably attached to the casing 6.

Further, a through hole 10a for mounting the check valve 12 is formed in the central portion of the elastic sheet 10, and the through hole 1 is formed.
A check valve 12 having a mushroom-shaped head 12a is provided at 0a. Further, the lower ring 11 is formed such that the wall thickness in the radial direction is partially thinner than the wall thickness of other portions.

The operation of the extractor 1 thus constructed is
Kure A obtained by crushing and heating soybeans to be extracted
It will be described based on the step of extracting soy milk from the.

First, an appropriate amount of water is put in the airtight container 2, the extraction container 3 is set in the airtight container 2, and the soybean soup obtained by crushing and heating the soybeans is put in the extraction container 3. In this state, as shown in FIG. 3, the elastic sheet 10 resists the pressure of Kure A and is sandwiched between the middle ring 9 and the lower ring 11,
The communication between the extraction container 3 and the airtight container 2 is cut off. Also,
The check valve 12 also closes the through hole 10a of the elastic sheet 10 with its head portion 12a by the pressure of Kure A.

Then, when the airtight container 2 is heated with an alcohol lamp or the like (not shown), water vapor is generated from the water in the airtight container 2, and the pressure of the water vapor causes the water vapor to be generated, as shown in FIG. The head 12a of the check valve 12 floats up against the pressure of Kure A, the through hole 10a of the elastic sheet 10 opens, and the steam is discharged into the extraction container 3 through the through hole 10a to heat Kure A. Stir.

When the heating of the airtight container 2 is stopped after a certain period of time and the airtight container 2 is naturally cooled, the pressure inside the airtight container 2 is reduced. Due to this depressurization, the inside of the airtight container 2 becomes a negative pressure, so that the elastic sheet 10 cannot withstand the pressure of Kure A and begins to bend toward the airtight container 2 side, and a part of the lower ring 11 has a wall thickness different from that of the other part. As shown in FIG. 5, since this portion is thinner than the wall thickness, this portion is disengaged from the lower ring 11, the extraction container 3 and the airtight container 2 communicate with each other, and they are filtered by the filter paper 7 and the plate 8. Soy milk is extracted into the airtight container 2 by negative pressure suction of the airtight container 2, and the okara is separated into the extraction container 3.

When the extraction is completed, the filter unit 4 is removed from the extraction container 3, and further the filter paper 7, the plate 8, the middle ring 9, the elastic sheet 10 and the lower ring 11 are removed from the casing 6 for cleaning, and again. Assemble and use.

As described above, the heating and cooling of the water in the airtight container 2 are used to bend the elastic sheet 10 which connects and disconnects the extraction container 3 and the airtight container 2 to extract soymilk from Kure A. Therefore, the structure is simpler and easier to clean than the conventional opening / closing mechanism of the extractor, the cost is low, it is not easily affected by heat, and there is no fear of malfunction.

Further, the crushing function of soybeans dipped in the extraction container 3,
By providing a heating function and a coagulant soymilk function such as bittern in the airtight container 2, it is possible to manufacture a series of dried soybeans to tofu. Furthermore, not only soymilk is extracted from Kure A but also kelp. You can also extract soup stock such as bonito flakes and bonito flakes.

The connecting pipe 3b of the extraction container 3 is connected to the airtight container 2
If the length is increased to near the bottom of the elastic sheet 10, the heated hot water can be raised from the through hole 10a of the elastic sheet 10 into the extraction container 3.

FIG. 6 shows a second embodiment of the present invention in which the extraction container 20 has a double wall structure of vacuum insulation, and the airtight container 2 and the filter section 4 have the same structure as that of the first embodiment. is there. When the extraction container 20 has a heat insulating structure in this way, when extracting the dashi soup, it is possible to maintain a high temperature range for a long time by putting hot water, kelp, bonito flakes, etc. in the extraction container 20 for adiabatic cooking. Delicious soup stock can be extracted, and even when soybean milk is extracted, the temperature decreasing gradient of soybean milk becomes small, so that when producing tofu, soybean milk can be mixed and coagulated with a coagulant without the need to reheat soymilk.

[0021]

As described above, the present invention provides an airtight container, an extraction container airtightly connected to the airtight container, a filter for filtering the liquid to be extracted in the extraction container, an extraction container and an airtight container. And an opening / closing mechanism for connecting and disconnecting the airtight container, discharging water vapor generated by heating the liquid in the airtight container to the extraction container, cooling the airtight container, and sucking negative pressure by depressurizing the airtight container. In the extractor for extracting the extract liquid filtered with a filter into an airtight container, the opening / closing mechanism shuts off the communication between the extraction container and the airtight container when the airtight container is at atmospheric pressure or higher,
Since the elastic sheet that connects the extraction container and the airtight container when the airtight container is decompressed is provided with a check valve for discharging the water vapor in the airtight container to the extraction container, the airtight container is kept under normal pressure or normal pressure. When the pressure is higher than or equal to the pressure, the elastic sheet blocks the communication between the extraction container and the airtight container, and when the liquid in the airtight container is heated to generate water vapor, the water vapor is discharged from the check valve into the extraction container and extracted. The liquid to be extracted in the container is heated and stirred.

When the inside of the airtight container is cooled by stopping the heating of the liquid in the airtight container, the airtight container is depressurized,
Since the elastic sheet bends due to negative pressure suction due to decompression and the extraction container and the airtight container communicate with each other, the liquid to be extracted in the extraction container is filtered by the filter and the extraction liquid is extracted into the airtight container. The opening and closing mechanism can be opened by using the heating and cooling of, the structure is simpler and easier to clean than the conventional opening and closing mechanism, the cost is low, it is not easily affected by heat, and there is no fear of malfunction. .

[Brief description of drawings]

FIG. 1 is a sectional view of an extractor showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a filter unit.

FIG. 3 is a cross-sectional view showing an elastic sheet when the airtight container is under normal pressure.

FIG. 4 is a cross-sectional view showing an elastic sheet when water vapor is generated.

FIG. 5 is a view showing an elastic sheet when the inside of the airtight container is in a negative pressure state.

FIG. 6 is a sectional view of an extractor showing a second embodiment of the present invention.

[Explanation of symbols]

1 ... Extractor, 2 ... Airtight container, 3, 20 ... Extraction container, 4 ...
Filter part, 6 ... Casing, 7 ... Filter paper, 8 ... Perforated plate, 1
0 ... Elastic sheet, 12 ... Check valve, A ... Kure

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoji Nakabayashi 1-16-7 Nishi-Shimbashi, Minato-ku, Tokyo Inside Nihon Oxygen Co., Ltd.

Claims (1)

[Claims] 1. An airtight container, an extraction container airtightly connected to the airtight container, a filter for filtering a liquid to be extracted in the extraction container, and an opening / closing mechanism for connecting and disconnecting the extraction container and the airtight container. And discharging the water vapor generated by heating the liquid in the airtight container to the extraction container, cooling the airtight container and filtering the extract liquid with a filter by negative pressure suction due to depressurization in the airtight container. In the extractor for extracting into an airtight container, the opening / closing mechanism disconnects the communication between the extraction container and the airtight container when the airtight container is at atmospheric pressure or higher, and connects the extraction container and the airtight container when the airtight container is depressurized. An extractor characterized in that the elastic sheet is provided with a check valve for discharging the water vapor in the airtight container to the extraction container.