JPH03212234A - Small amount brewing device for hot water storage type brewer - Google Patents

Abstract

PURPOSE:To enable the brewing of even a small amount of coffee powder for one to two cups by using a bottom plate capable of causing a large elastic deformation for the bottom of a tank located above a conduit tube. CONSTITUTION:Water is supplied to a vessel 31 through a water inlet 43a via a feed water pipe 37. Water in the vessel 31 is discharged from a delivery port 40b via a conduit tube 40 and air enters the vessel 31 through a water suction port 40a, thereby stopping water discharge. When water is heated with an exothermic body 34 up to the predetermined temperature, a temperature regulator 35 operates to stop a heating process. A basket 41 is filled with coffee powder and set in a brewer, and water is supplied from the water inlet 43a. The bottom of a tank 36 is located above the upper surface of the conduit tube 40 and, therefore, hot water in the vessel 31 is discharged from the delivery port 40b, even with a small amount of water supplied. The hot water is thereby poured onto the coffee powder in the basket 41, and brewed coffee drops to a decanter 42. When a large amount of water is supplied, water level in the tank 36 rises and water pressure is applied to the bottom plate 38 of the tank 36. Consequently, the bottom plate 38 is deflected and the capacity of the tank 36 increases correspondingly.

Description

[Detailed description of the invention] 2 b.

INDUSTRIAL APPLICATION FIELD The present invention relates to a small amount extraction device for a so-called hot water storage type extraction machine, such as a coffee maker, in which hot water heated to 100 degrees is supplied to the extraction device via a water guide pipe.

Conventional technology The configuration of a conventional extractor will be explained with reference to FIG.

As shown in the figure, the container 1 includes a bottomed container tank 2,
a container lid 3 that hermetically seals the upper part of the container tank 2;
A heating element 4 is attached to the lower periphery of the container 1, and a temperature regulator 5 is provided outside the bottom surface. A tank 6 is provided above the container lid 3, an opening A6a is provided in the bottom of the tank 6, and a water supply pipe 7 having one end opened through this opening Aha and the other end opened below inside the container 1 is passed through. The upper end of the water supply pipe 7 is passed through the opening B3a of the container lid 3. The opening Csb of the container lid 3 is provided so as to penetrate through the air cylinder 8 which opens above the tank 6. The opening D3c of the container lid 3 is provided as a through hole for the water guide pipe 90.

The water guide pipe 9 has a water intake port 9a positioned above the entire container 1 at one end, and a discharge port 9b at the other end bent into a substantially U-shape. A basket 1o for storing coffee powder etc. is disposed below the discharge port 9b, and a decanter 11 for storing extracted coffee etc. is disposed below the basket 10. A lid 12 is placed above the tank 2 over a water inlet 12a for filling water.
are arranged.

The operation in the above configuration will be explained. When water is poured from the water supply port 12a, the water flows into the container 1 through the water supply pipe 7 from the opening A6a of the tank 6. When the water level in the container 1 rises and the water is supplied above the water guide pipe 9, the water in the container 1 is drained through the water guide pipe 9 to the discharge port 9b.

When water is drained and the water level falls below the height of the water intake port 9a, air enters the water intake port 9a through the air cylinder 8 and into the water introduction pipe 9, and the siphon principle does not work within the water introduction pipe 9. Drainage stops. In this state, electricity is applied to the heating element 4, and when the water temperature rises to the set temperature of the temperature regulator 6, the electricity to the heating element 4 is stopped.

After this, put coffee powder in basket 1o and set it.
When water is supplied again through the water supply port 12a, the heated hot water in the container 1 is discharged from the discharge port 9b through the water guide pipe 9, and is poured onto the coffee grounds in the basket 1o, and the extracted coffee drips into the decanter 11. .

Problems to be Solved by the Invention However, in this conventional hot water storage type brewing machine, when brewing coffee or the like after the water has been boiled, unless water is supplied to fill the water pipe 9 to the top, the hot water will flow out of the water pipe 9. Not supplied through. In other words, in order to extract with a small amount of hot water, at least the minimum volume of the container 1, water supply pipe 7, and tank 6 located at the distance from the surface of the inlet 9a of the water pipe 9 to the top surface of the water pipe 9 must be extracted. It needed to be less than the amount of water. For this reason, the bottom of the tank 6 cannot be lower than the top of the water guide pipe 9, and furthermore, when the tank 6 is filled with the maximum amount of extracted water, it is necessary to ensure a sufficient capacity so that the water does not overflow. However, the height of the extractor 6 becomes large and the height of the entire extractor becomes high.

The present invention solves the above-mentioned problems, and aims to make it possible to extract even a small amount of 1 to 2 cups using a hot water storage type extractor.

Means for Solving the Problems In order to achieve the above object, the present invention provides, as a first means, a sealed container equipped with a heating element for heating water, a tank disposed above the container, and a tank connected to the tank. In a hot water storage extractor consisting of a water supply pipe that communicates the containers, a water guide pipe that supplies hot water from the container to the extraction device, and an air cylinder that supplies air into the container, the bottom surface of the tank located above the water guide pipe. In order to prevent water from leaking into the tank, we used a small amount extraction device for a hot water storage type extraction machine, which was equipped with a bottom plate made of rubber sheet, bellows, or corrugated metal sheet that has a large elasticity change to prevent water from leaking into the tank. Also as a second means.

The container includes a bottomed container tank and a container lid that tightly seals the top of the container tank.

A small amount extraction device for a hot water storage type extractor is provided in which a part of the container lid is provided with an upward protrusion, and one end of a water guide pipe and one end of an air cylinder are disposed on the protrusion.

According to the first means of operation, a bottom plate with large elasticity, such as a rubber sheet, bellows, or corrugated metal sheet, is placed on the bottom of the tank, which is placed above the water pipe, to prevent water leakage. Because it is attached, when a small amount of water is poured into the tank, the water level in the tank is low, so only a small amount of water pressure is applied to the bottom plate, causing only slight deflection. When a large amount of water is put into the tank, the water level is not high and a large amount of water pressure is applied to the bottom plate, causing a large amount of deflection. The height of the tank can be reduced by the increase in volume due to this deflection.

According to the second method, a portion of the container lid is provided with an upwardly protruding portion, and one end of the water guiding pipe and one end of the air cylinder are arranged on this projecting portion, so that the water guiding pipe is positioned above the intake port of the water guiding pipe. The volume within the container can be reduced. For this reason, even a small amount of water can reach the top of the water pipe.

Example Next, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a drawing showing a first means of the present invention. As shown in FIG. A heating element 34 is attached to the lower periphery of the container 31, and a temperature regulator 36 is provided outside the bottom surface.

A tank 36 having an opening A 36 a at the bottom is provided above the container lid 33, and one end of the tank 36 is connected to the opening A 36 a.
A water supply pipe 37 having an opening at the other end at the lower part of the container is disposed to pass through the opening B53a of the container lid 33.

A bottom plate 38 is made of a rubber sheet, a bellows, or a corrugated metal sheet and has a large elasticity, and is provided to prevent water from leaking to the bottom of the tank 36.

The opening C33b of the container lid 33 is provided so as to pass through the air cylinder 39 which opens above the tank 36. The opening D33C of the container lid 33 is provided as a through hole for the water guide pipe 4o, and the water guide pipe 4° is formed in a substantially U-shape, with the water intake port 40a at one end located above the inside of the container 31, and the water outlet at the other end. It has an outlet 40b. The bottom surface of the tank 36 provided with the bottom plate 38 is provided above the top surface of the water guide pipe 4o. A basket 41 for storing coffee powder and the like and a decanter 42 for storing extracted coffee and the like are arranged below the discharge port 40b. A lid 43 is disposed above the tank 32 over a water supply port 43a through which water is introduced.

The operation in the above configuration will be explained. When water is introduced through the water supply port 43a, water flows into the container 31 through the water supply pipe 37 from the opening A36a of the tank 36. When the water level in the container 31 rises and water is supplied above the water guide pipe 40, the water in the container 31 flows through the water guide pipe 4o to the outlet 4o.
Water is drained from b.

When the water is drained and the water level drops below the surface of the water intake port 40a,
Since air is entering the upper part of the container 31 through the air cylinder 39, air also enters the water guide pipe 4o through the water intake port 40a, and the siphon principle no longer works in the water guide pipe 40, and drainage stops. do. In this state, the heating element 34
When the water is heated by passing electricity through and reaches the set temperature, the temperature regulator 35 is activated and the electricity to the heating element 34 is stopped. After that, put coffee powder in the basket 41 and set it, and feed it to the basket 41.
Water is supplied again from the page water port 43a. The bottom of the tank 36 is located above the top of the water guide pipe 4o, so even if a small amount of water is poured in, the water level will reach the top of the water guide pipe 4o.
The hot water in the container 31 passes through the water guide pipe 4o to the discharge port 40.
B, the water is drained, poured into the coffee powder in the basket 41, and the extracted coffee drips into the decanter 42. Further, when a large amount of water is poured into the tank 36, the water level inside the tank 36 becomes high.

At this time, water pressure is applied to the bottom plate 38 and the bottom plate flexes, so that the effective capacity of the tank 36 increases.

Next, a second embodiment will be explained based on FIG. 3.

The characteristic configuration of this product is a bottomed container tank 32,
In a container 31 consisting of a container lid 33 that hermetically seals the upper part of the container tank 32, a part of the container lid 33 is provided with an upward protrusion SSd, and the protrusion 5sci is provided with one end of a water guide pipe 4o, One end of an air cylinder 39 was provided.

According to this configuration, when water is boiled and coffee is extracted, the protrusion ss of the container lid 33 is placed above the container 32.
d with one end of the water guide pipe 4o.

Page 10 Since one end of the empty cylinder 39 is arranged, the inside of the container 32 is filled with a small amount of water supply. Therefore, only a small amount of water reaches the upper surface of the water guide pipe 4o, making it possible to perform extraction with a smaller amount of water than in the past.

Effects of the Invention As is clear from the above explanation, according to the first embodiment, a bottom plate with a large elasticity change, such as a rubber sheet or a corrugated metal sheet, is installed on the bottom of the tank. By attaching the tank 36, the effective volume of the tank 36 changes depending on the amount of water supplied, making it possible to reduce its size and to extract a small amount.

According to the second embodiment, the container is a bottomed container tank;
A container lid that seals the upper part of the container tank in an airtight state is provided, a part of the container lid is provided with an upward protrusion, and one end of the water guide pipe and one end of the air cylinder are disposed on the protrusion. Therefore, the upper volume of the container can be filled with a small amount of water. This made it possible to extract a smaller amount than before. Moreover, it has a simple structure and can be supplied at low cost, making it highly practical.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of a hot water storage type extractor according to the first embodiment of the present invention, Fig. 2 is an external perspective view of the same, and Fig. 3 is a second embodiment of the invention. FIG. 4 is a sectional view showing an embodiment of a hot water storage type extractor, and FIG. 4 is a sectional view showing a conventional hot water storage type extractor. 31... Container, 32... Container tank,
33...container lid, ssd...protrusion,
34... Heating element, 36... Tank, 3
7... Water supply pipe, 38... Bottom plate. 39...Air cylinder, 4o...Water pipe.

Claims (3)

[Claims] (1) A sealed container equipped with a heating element that heats water, a tank placed above the container, a water supply pipe that communicates the tank and the container, and a water guide pipe that supplies hot water from the container to the extraction device; A hot water storage type extractor consisting of an air cylinder that supplies air into a container, in which a bottom plate with large elastic deformation is attached to the tank in a watertight manner on the bottom of the tank located above the water guide pipe. Small quantity extraction equipment. (2) A small amount extraction device for a hot water storage type extractor according to claim 1, wherein a bottom plate of a rubber sheet, a bellows, or a corrugated metal sheet is attached to the bottom of the tank in a watertight manner. (3) A sealed container equipped with a heating element that heats water consists of a bottomed container tank and a container lid that tightly seals the top of the container tank. 2. A small amount extraction device for a hot water storage type extractor according to claim 1, further comprising a protruding portion, and one end of a water guide pipe and one end of an air cylinder are disposed on the protruding portion.