JP3041689U - Beverage liquid extractor - Google Patents

Abstract

(57) [Abstract] [Problem] Draining the extract and draining the lees, while extracting the extracted product liquid only from the draw-out port of the tank bottom lid as it is in the existing conduit, without adding a drawing pipe. (EN) Provided is a hygienic immersion tank type beverage extraction device which can obtain a high-quality extraction liquid in which the elution of unnecessary substances is suppressed and the filter mesh in the tank can be easily cleaned. SOLUTION: A bottom lid 2 having an extraction liquid outlet 2a at the center of the bottom is openably and closably attached to an opening on the lower surface of an extraction tank 1, and a filtration net 3 is stretched on the upper surface of the bottom lid 2 and the extraction is performed. Vertically long strip-shaped filter nets 6 are stretched at a plurality of positions on the inner wall of the cylindrical portion of the tank 1 at intervals s from the wall surface.
The lower back surface of the tank is communicated with the inside of the bottom lid 2 through the filter mesh 3, and the fresh water spray pipe 10 is faced between the upper end of the body filter mesh 6 and the inner wall surface of the extraction tank 1. A beverage liquid extraction device in which a fresh water dispersion plate 11 is attached at a position facing the spray pipe 10 with a filter mesh 6 in between.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The idea is to extract extracted beverages from extracted raw materials such as tea leaves that tend to form an impermeable precipitate layer after immersion and stirring with a small particle size, in a short time without causing clogging. The present invention relates to such a beverage liquid extraction device.

[0002]

[Prior art]

 A filtration net attached to the bottom lid, which is provided with an extraction tank having a raw material inlet at the top and a hot water spray nozzle inside, and a bottom lid that can be opened and closed at an opening on the lower surface of the extraction tank. An immersion tank type beverage liquid extraction device for extracting extracted beverage liquids such as coffee and tea through a well is conventionally known. (As an example, refer to Japanese Utility Model Laid-Open No. 7-27425.)

However, when the extracted beverage liquid is drawn out through a filtration net attached to the bottom lid, when the extraction raw material such as tea leaves is apt to form a water-impermeable sedimentary sediment layer after finely immersing and stirring, However, there is a problem in that the discharge of the extract is hindered by clogging of the sedimentation layer, and at the same time negative pressure is applied to the precipitated tea leaves, which compresses the tea leaves and makes it more difficult to discharge the extract.

In order to solve this problem, in the above-mentioned immersion tank type beverage liquid extracting apparatus, outlets for extracting the extracted beverage liquid are provided at a plurality of locations on the lower side surface of the tank through filtration nets to settle. It is also known that the product liquid is drawn out from a plurality of positions on the side surface of the tank without passing through the deposition layer. (For example, see Japanese Patent Laid-Open No. 64-63339.)

However, in order to extract the extracted product liquid from a plurality of locations on the side surface of the tank, it is necessary to newly add an extraction pipe line for that purpose, which requires a large modification of the existing equipment, and the piping is complicated. In addition to the above, there remains a problem that it is difficult to clean the filter nets attached to the inner wall of the side surface of the tank at a plurality of places, and especially the tea leaves adhering to the gap between the back surface and the wall surface.

[0006]

[Problems to be solved by the device]

 The present invention has been made to solve the above-mentioned problems, and the extracted product liquid is drawn out only from the draw-out port of the tank bottom lid as it is in the existing pipeline without adding the draw-out pipeline. In addition, the time for discharging the extract and draining the dregs can be shortened to shorten the time for the liquid discharge process during the extraction operation. As a result, the extraction capacity and the extraction raw material and the extract can be improved. It is possible to control the contact time with the extract, obtain a high-quality extract that suppresses the elution of unnecessary substances, and easily clean the filter net in the tank, and use a hygienic immersion tank-type beverage liquid extractor. They are trying to provide.

[0007]

[Means for Solving the Problems]

 This invention provides means for solving the above-mentioned problems, and opens and closes a bottom lid 2 having an extraction liquid outlet 2a at the center of the bottom of an extraction tank 1 having a cylindrical body. It is freely attached, and a filtration net 3 is stretched on the upper surface of the bottom lid 2, and at the two inner wall surfaces of the cylindrical body of the extraction tank 1, at least two places are spaced from the wall surface by a space s to form a vertically long strip body. A filter mesh 6 is stretched, and the back space of the barrel filter mesh 6 is communicated with the bottom cover 2 through the filter mesh 3, and the upper end of the barrel filter mesh 6 and the inner wall surface of the extraction tank 1 are connected. A fresh water spray pipe 10 is attached to a position facing the space between the and, and a fresh water dispersion plate 11 having an L-shaped cross section is attached to a position facing the spray nozzle 10 with the filter mesh 6 interposed therebetween. The concept is to devise a beverage liquid extraction device.

[0008]

[Embodiment of the invention]

 In the figure, reference numeral 1 denotes an extraction tank having a cylindrical body, which is provided with a bottom lid that can be opened and closed at a lower portion, and a raw material inlet port (not shown) with an upper lid that can also be opened and closed at an upper portion, and can be hermetically sealed. . A filtration net 3 is stretched on the upper surface of the bottom lid, and an extraction liquid extraction port 2a is provided at the center of the bottom. The above is as conventionally known.

Inside the extraction tank 1, there are provided a hot water supply spray pipe 4 and a stirring blade 5 which can be freely rotated and moved up and down. After the raw tea leaves are charged, the hot water is supplied from the spray pipe to immerse the tea leaves, and the stirring blades 5 are added. The extract is obtained by rotating the solution in the normal and reverse directions and stirring, and the product beverage liquid is drawn out from the extract drawing port 2a.

At least two locations on the inner wall of the cylindrical portion of the extraction tank 1 are provided with a vertically elongated strip-shaped body filter mesh 6 with a gap s between them. Reference numeral 7 is a frame-shaped support frame that holds the four sides of the body filter mesh 6 from inside and outside, and both left and right sides are tightly fixed to the wall surface. Reference numeral 8 denotes a lower support frame of which lower end periphery comes into contact with the filter mesh 3 of the bottom lid 2 through the partition packing 12 when the bottom lid 2 is closed. Although not shown, the frame-shaped support frame 7 is provided with a reinforcing rib.

The vertical length of the body filter mesh 6 is substantially equal to the length of the cylindrical body of the extraction tank 1, and the width in the horizontal direction is suitably about 1/3 or less. The upper end of the body filter mesh 6 is fixed at a position slightly higher than the liquid level WL of the extraction tank 1 during the extraction operation, and the lower end is separated by the partition packing 12 of the lower support frame 8 from the filter mesh 3 of the bottom cover 2. , And the gap s on the back side of the body filter mesh 6 communicates with the inside of the bottom lid 2 from the back side of the lower support frame 8 through the filter mesh 3 as indicated by the arrow a.

Reference numeral 9 denotes a fresh water supply pipe, and a spray pipe 10 facing between the upper end of the body filter mesh 6 and the wall surface is attached to the lower end of the pipe. Reference numeral 11 denotes a fresh water dispersion plate having an L-shaped cross section, which is attached to a position facing the spray pipe 10 with the upper end of the barrel filter mesh 6 being separated therefrom.

As described above, the extraction raw material such as tea leaves is put into the extraction tank 1, hot water is supplied from the spray pipe 4 to be immersed, and the normal rotation → stop → reverse rotation → stop is performed while moving the stirring blade 5 up and down. By repeating, it is possible to give a swirl flow and upstream / downstream to the liquid in the extraction tank 1, the floating extraction raw material is involved in the flow, and the precipitation extraction raw material is also suspended in the liquid. Therefore, useful components can be efficiently eluted from the extraction raw material.

When the extraction operation is completed and the stirring operation is stopped, the extraction raw material meal such as tea leaves is precipitated and deposited on the filter net 3 of the bottom cover 2. When the withdrawal port 2a of the bottom lid 2 is opened in this state, the supernatant liquid in the upper part of the tank 1 does not pass through the sedimentary layer of the precipitated tea leaves, passes through the filter net 6 of the body of the tank 1 and is indicated by the arrow a. In addition to flowing down into the bottom lid 2 and discharging from the outlet 2a, it is possible to prevent generation of a negative pressure when discharging the liquid added to the precipitated tea leaves.

On the other hand, the extract liquid in the lower part of the tank 1 flows down into the bottom cover 2 via the filter layer 3 of the bottom cover 2 via the sedimentary layer of the precipitated tea leaves, and then flows through the filter mesh 6 of the body part of the tank 1. Although it is discharged from the outlet 2a together with the extracted liquid that has passed through, the extracted liquid that has passed through the filter net 6 of the body is not filled in the bottom lid 2 and is not in a vacuum state. The extract can be discharged smoothly without the resistance of the sediment layer increasing due to compression.

After completion of the discharge work of the extract, the bottom cover 2 is opened to discharge the extract cake on the filter net 3, and the fresh water supply pipe 9 is opened to eject the pressurized cleaning water from the spray pipe 10 to eject it. The fresh water thus prepared is dispersed by the fresh water dispersion plate 11 and flows down along the body filtering net 6, whereby the extracted lees such as tea leaves adhering to both front and back surfaces of the body filtering net 6 can be removed and dropped. It is also possible to efficiently remove the extraction cake adhering to the gap s between the filtration net 6 and the inner wall of the tank 1. The filtration net 3 of the bottom lid 2 may be washed by any known washing means.

[0017]

[Effect of the invention]

 According to this invention, a bottom cover 2 having an extraction liquid outlet 2a at the center of the bottom is attached to the bottom opening of the extraction tank 1 having a cylindrical body so as to be openable and closable, and a filtration mesh is provided on the top surface of the bottom cover 2. 3 is stretched, and a vertically long strip-shaped body filter mesh 6 is stretched at least at two locations on the inner wall of the cylindrical body of the extraction tank 1 with a gap s between the wall and the body. By connecting the back space of the filtration net 6 to the inside of the bottom lid 2 through the filtration net 3 of the bottom lid 2, the supernatant liquid in the upper part of the extraction tank 1 does not pass through the sedimentary layer of the precipitated tea leaves to the bottom. It can flow into the lid 2 and be discharged from the withdrawal port 2a, while the extract liquid in the lower part of the tank 1 passes through the sediment layer of the precipitated tea leaves, the filtration net 3 of the bottom cover 2 and the inside of the bottom cover 2. Flowing down to the outlet, and merges with the extract that has passed through the filter net 6 in the body of the tank 1 and is discharged from the outlet 2a. Since the bottom lid 2 is not filled with the extract liquid that has passed through the filter net 6 of the body and is not in a vacuum state, the sediment layer of the precipitated tea leaves is not compressed and the resistance is not increased. The extract can be discharged smoothly in a short time.

As a result, it becomes possible to shorten the time for discharging the extract and draining the dregs, shortening the time of the liquid discharge process during the extraction operation, improving the extraction capacity, and unnecessary. It is possible to provide an immersion tank type beverage liquid extraction device capable of obtaining a high-quality extraction liquid with suppressed elution of a substance.

Further, a fresh water spray pipe 10 is attached at a position facing between the upper end of the body filter mesh 6 and the inner wall surface of the extraction tank 1, and the body filter mesh 6 is sandwiched to face the spray pipe 10. By installing a fresh water dispersion plate 11 having an L-shaped cross-section at the position, the fresh water is ejected from the spray pipe 10 after the extraction work is completed, so that both the front and back surfaces of the body filtration network 6 and especially the filtration network 6 It is also extremely hygienic as it is possible to clean the extraction raw material residue adhering to the gap s between the back surface of the tank and the inner wall surface of the tank 1.

[Submission date] March 25, 1997

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

[Means for Solving the Problems]

This invention provides means for solving the above-mentioned problems, and opens and closes a bottom lid 2 having an extraction liquid outlet 2a at the center of the bottom of an extraction tank 1 having a cylindrical body. It is freely attached, and a filtration net 3 is stretched on the upper surface of the bottom lid 2, and at the two inner wall surfaces of the cylindrical body of the extraction tank 1, at least two places are spaced from the wall surface by a space s to form a vertically long strip body. A filter mesh 6 is stretched, and the back space of the barrel filter mesh 6 is communicated with the bottom cover 2 through the filter mesh 3, and the upper end of the barrel filter mesh 6 and the inner wall surface of the extraction tank 1 are connected. It is attached Shimizu spray pipe 10 at a position facing between, at a position opposed to the spray Paipu 10 across the torso filtration network 6, to become attached to an L-shaped cross section Shimizu partial diffusion plate 11 A feature of the invention is a characteristic beverage liquid extraction device.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009] Inside the extraction tank 1, the rotation and vertical movement is hot water spray pipe 4 and the stirring blades 5 freely provided, after the raw material tea leaves turned hot water and by immersing the tea leaves from the spray pipe 4, stirred An extract is obtained by rotating the blades 5 forward and backward and stirring, and the product beverage liquid is drawn out from the extract drawing port 2a.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged view showing the lower part of the trunk filter mesh,
(A) is an enlarged sectional view corresponding to FIG. 1, and (B) is a partially cutaway sectional view corresponding to FIG. 2.

[Explanation of symbols]

 1 Extraction Tank 2 Bottom Lid 2a Extraction Liquid Extraction Port 3 Lower Filter Net 4 Hot Water Spray Pipe 5 Stirring Blade 6 Body Filter Net 7 Frame Support Frame 8 Lower Support Frame 9 Fresh Water Supply Pipe 10 Fresh Water Spray Pipe 11 Fresh Water Dispersion Plate 12 Partition Packing s Gap between the filter mesh of the body and the inner wall of the tank

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[Procedure amendment]

[Submission date] March 25, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

1. A bottom cover 2 having an extraction liquid outlet 2a at the center of the bottom is openably and closably attached to an opening on the lower surface of an extraction tank 1 having a cylindrical body, and a filtration net 3 is provided on the upper surface of the bottom cover 2. And a vertically elongated strip-shaped filter mesh 6 is stretched at least at two locations on the inner wall of the cylindrical body of the extraction tank 1 with a space s between the wall and the lower surface of the body filtration mesh 6. through the filtering net 3 space communicates with the inside bottom lid 2 and is attached Shimizu spray pipe 10 at a position facing between the barrel upper end and the inner wall surface of the extraction tank 1 of filter screen 6, cylinder
The section filter net 6 at a position facing the spray Paipu 10 by sandwiching, the beverage liquid extraction apparatus characterized by comprising attaching the L-shaped cross section Shimizu distribution plate 11. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 25, 1997

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

[Fig. 2]

[Figure 3]

Claims (2)

[Utility model registration claims] 1. A bottom lid 2 provided with an extraction liquid withdrawing port 2a at the center of the bottom of an extraction tank 1 having a cylindrical body.
Is attached so as to be openable and closable, a filtration net 3 is stretched on the upper surface of the bottom lid 2, and a vertically long strip-shaped filtration is provided at least at two locations on the inner wall of the cylindrical body of the extraction tank 1 with a space s therebetween. A net 6 is stretched, the lower back surface space of the barrel filter mesh 6 is communicated with the bottom cover 2 through the filter mesh 3, and the upper end of the barrel filter mesh 6 and the inner wall surface of the extraction tank 1 are connected. While installing the fresh water spray pipe 10 in the position facing between
A beverage liquid extraction device, characterized in that a fresh water dispersion plate 11 having an L-shaped cross section is attached to a position facing the spray nozzle 10 with the filtration net 6 interposed therebetween. 2. The vertical length of the barrel filter mesh 6 is substantially equal to the length of the cylindrical barrel of the extraction tank 1, and the width in the horizontal direction is about 1/3 or less, and the upper end thereof is the extraction tank 1 Is fixed at a position higher than the liquid level WL during the extraction operation of 1., the lower end is supported by the lower support frame 8, and the support frame 8 is brought into contact with the filter net 3 of the bottom lid 2 through the partition packing 12. The beverage liquid extraction device according to 1.