JPH05192245A - Extractor for coffee, etc. - Google Patents

Abstract

PURPOSE: To easily and satisfactorily set a capsule to an extracting device without requiring the measurement of an extracted object when the extracting device is used by providing the capsule sealing the extracted object such as coffee powder. CONSTITUTION: This coffee extracting device is provided with a capsule 93 having a nearly conical outer peripheral rim 99 extended outward on an outer periphery section near a bottom face and seals an extracted object such as coffee powder and a guide ring 56 surrounding a nozzle 59 for spouting hot water into the capsule 93 and having a storage section 60 with nearly the same conical shape as the outer shape of the capsule 93. The capsule 93 is stored in the storage section 60 of the guide ring 56 with its outer peripheral rim 99 kept in contact with the lower end section of the guide ring 56. The coffee extracting device is also provided with a capsule base 74 coupled with the outer peripheral rim 99 from below, pinching the outer peripheral rim 99 between it and the lower end section of the guide ring 56, and airtightly holding the capsule 93 in the storage section 60 of the guide ring 56.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extractor for coffee or the like which obtains an extract by injecting hot water into an extract such as coffee powder under pressure, and more particularly to an extractor for coffee powder or the like. The present invention relates to a coffee extractor using an encapsulated capsule.

[0002]

2. Description of the Related Art Generally, it is said that coffee is preferably extracted at high temperature in a short time and uniformly from the whole. Therefore, conventionally, coffee extractors have been found that pressurize with a pump or the like and extract in a short time. Hereinafter, the conventional extraction device for coffee or the like as described above will be described with reference to the drawings. FIG. 6 shows a conventional device for extracting coffee or the like. In FIG. 6, 1 is a heater block, which is made of a good heat conductor such as aluminum. A spiral water channel 2 is provided in the heater block 1, and a spiral heating element 3 is embedded in the back surface. Further, in the center thereof, there is a through hole 4 communicating with the water channel 2.
Is provided. Reference numeral 5 denotes a mounting member mounted below the heater block 1, and a recess 8 having an opening 7 that is watertightly connected to the through hole 4 and an O-ring 6 is provided at the center of the mounting member 5. A valve 9 for closing the opening 7 and a valve spring 10 for urging the valve 9 are provided in the recess 8 by screwing a valve seat 11. 12
Is a diffusion plate screwed to the valve seat 11 with a mounting screw 13. Reference numeral 14 denotes an electromagnetic pump, which connects a suction pipe 16 having one end opened at the bottom of a water container 15 and a connection pipe 17 communicating with the water passage 2 provided in the heater block 1 via the pump 14. is doing.

Reference numeral 18 denotes a hook plate having a central opening provided in the lower portion of the fitting 5, and a filter holder 2 having a handle 19 around the central opening of the hook plate 18.
A plurality of notches 22 provided around the upper end of 0 for loosely fitting a plurality of claws 21 and a plurality of engaging pieces for engaging the claws 21 by the rotation of the filter holder 20 after the claws 21 are loosely fitted. 23 are provided respectively. Reference numeral 24 is a filter housed in the filter holder 20, and 25 is a seal packing that is locked to the mounting member 5 and is brought into airtight contact with the upper end portion of the filter 24. The filter holder 2
In the lower part of 0, an outlet 26 is provided at the lower end of the tapered surface toward the center. Reference numeral 27 is a backing plate having a large number of holes for mounting a demitasse coffee cup 28 into which this type of coffee is placed, and 29 is a saucer. 30 is coffee grounds. Reference numeral 31 is an automatic temperature controller that is provided in the heater block 1 in a heat-sensitive manner and controls the energization of the heating element 3.

The operation of the extraction apparatus configured as described above will be described below. First, a required amount of water is put in the water container 15. Next, when power supply to the heating element 3 is started, the automatic temperature controller 31 controls the temperature to a predetermined temperature. Then, a predetermined amount of coffee powder 30 is put into the filter 24 stored in the filter holder 20 and is pivotally engaged with the hook plate 18. This completes the preparation for coffee extraction. Next, attach the demitasse coffee cup 28 to the filter holder 20.
Set it on the backing plate 27 that is just below the outlet 26 of
When the pump 14 is operated, the water in the water container 15 is pumped by the pump 14 into the heater block 1 through the suction pipe 16 and the connection pipe 17. This heater block 1
The water pumped into the inside is boiled by passing heat from the heater block 1 into hot water while passing through the spiral water passage 2, and the hot water passes through the through hole 4 and presses the valve 9 to pass therethrough.
After passing through the diffusing plate 12 and inside the coffee grounds 30, the coffee liquid is extracted, and at the same time, it flows out from the outlet 26 and is poured into the demitasse coffee cup 28 to complete the coffee.

When the coffee has been extracted, the handle 19
Is rotated in a direction opposite to that when the claw 21 is set to remove the claw 21 from the engaging piece 23, and the coffee powder 30 in the filter holder 20 which has been extracted is discarded, and the filter 24, the filter holder 20 and the diffusion plate 12 are disposed. Etc. are to be cleaned.

[0006]

SUMMARY OF THE INVENTION In the above conventional configuration,
Each time the coffee powder 30 is extracted, it must be weighed and put into the filter 24.
The holes through which the coffee liquid passes are made small in order to minimize the passage of the coffee grounds 30. Therefore, it is necessary to pay sufficient attention to dirt and clogging of the filter 24, and as a result, it is necessary to wash the filter 24 every time it is used to keep it clean. In addition, the coffee grounds used in this type of brewing equipment determine the brewing pressure depending on the coffee grounds size, which requires coffee grounds size control to obtain good coffee and is therefore very common for general consumers. It was inconvenient to use. The present invention solves such a problem, and an object of the present invention is to provide an easy-to-use extraction device for coffee or the like.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has a substantially conical shape and has an outer peripheral rim extending outward in the outer peripheral portion near the bottom surface. A capsule encapsulating the substance to be extracted, a nozzle for ejecting hot water introduced through a boiling unit having a heater into the capsule, and a substantially conical shape that is substantially the same as the outer shape of the capsule surrounding the nozzle, A guide ring provided with a storage portion for storing the capsule, and a capsule for storing the capsule in the guide ring and hermetically holding the capsule together with the guide ring through an outer peripheral rim of the capsule that abuts a lower end portion of the guide ring. It is configured with a stand.

[0008]

According to this structure, when setting a substance to be extracted such as coffee grounds, the substantially conical capsule is stored in the substantially conical storage part of the guide ring by utilizing its inclination, so that it can be easily carried out. In addition to being able to be carried out, the structure is extremely simple and its operation is easy because the capsule is hermetically held by the guide ring and the capsule base via the outer peripheral rim of the capsule, and as a result, , The usability is very good.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 5 show a pressurized pouring type coffee extractor according to the present invention. In FIGS. 2, 3 and 4, reference numeral 41 denotes a heater block constituting a boiling water unit. Is provided with a heater block main body 42 formed of a good heat conductor such as aluminum die casting, and a water pipe 44 in which a substantially columnar heater 43 is mounted in a good heat conductive manner. The water pipe 44 is provided with a spiral groove 45 continuous from one end to the other end on the outer peripheral surface thereof, and is provided with seal rings 46 at both ends thereof, and is further hermetically inserted into the heater block main body 42 to form a spiral shape. Forming a water channel 47. Reference numeral 48 denotes an outlet provided at the bottom of the heater block body 42 located at the tip of the water channel 47. 49 is a terminal plate of the heater 43.

Reference numeral 50 designates a ring plate having an opening 52 in the central portion which communicates with the outlet 48 and an O-ring 51 in an airtight manner.
The ring plate 50 is screwed onto the lower surface of the heater block main body 42 by screws. Reference numeral 53 is a holder having the ring plate 50 as an interior and having a substantially cylindrical shape, and a handle 54 for operation is extended on the outside thereof to be integrally formed by zinc die casting or the like. The upper portion is engaged with the upper outer peripheral step portion 55 of the ring plate 50 so as to be rotatable.

The ring plate 5 is communicated with the opening 52.
0 is a guide ring detachably provided by a male screw portion 58 screwed to a female screw portion of the stepped hole portion 57 provided at 0. The guide ring 56 is made of stainless steel or the like, and has a central upper portion at its upper portion. A nozzle 59 formed of stainless steel or the like having a tip of an acute-angled taper tip is press-fitted, and a storage portion 60 that surrounds the nozzle 59 and has a substantially frustoconical cavity is provided. Further, the nozzle 59 is provided with a nozzle hole 61 which is branched in two directions at the lower end and is opened in the tapered surface, and when the guide ring 56 is screwed by the O-ring 62, the opening 5 of the ring plate 50 is screwed.
It communicates with 2 in an airtight manner.

Reference numeral 63 is a valve formed of silicone rubber or the like and provided in the step portion of the stepped hole portion 57. This valve 63 is a valve spring 65 provided in the central opening 64 of the male screw portion 58 of the guide ring 56. Is urged in the direction to close the opening 52.

Reference numeral 66 is a support fitting provided on the base 67 by screwing it with a screw, and on the front surface thereof is provided an elevator base 69 which is provided on a support rod 68 so as to be able to move up and down and is formed of a stainless steel plate or the like. I have it. The lift table 69 is provided with a notch hole 70 in the center, and the lift table 69 has a guide groove 72 having a substantially U-shaped cross section which is opened at the inclined surface 71 descending to the notch hole 70 and the guide groove 72. A capsule base 74 formed by aluminum die casting or the like is provided, which has shoulders 73 which are located on both sides and are provided from the opposite side of the inclined surface 71 to the central portion. Further, a pair of left and right hook plates 75 formed by zinc die casting or the like are fixed to the upper surface of the capsule base 74 with a gap substantially equal to the width of the guide groove 72. In addition, a discharge port 76 is provided in the center lower part of the capsule base 74, and the periphery thereof is formed into a concave shape. A disk-shaped capsule seat 78 formed of stainless steel or the like is provided which forms a part of the bottom of the guide groove 72 by providing the rib 77.

The pair of hook plates 75 are integrally provided with hook pieces 79 projecting outwardly from each other. The hook pieces 79 slide upward together with the lift table 69 and slide on the lift table 69. When it reaches almost the upper end of the range, it passes through the notch 80 provided around the central opening of the holder 53 and engages with the engaging portion 81 adjacent to the notch 80 by the rotation of the holder 53. .. 82 is the heater block 41
The lever 82 is slidably provided in the front-back direction, that is, in the longitudinal direction of the heater block main body 42, on the side of the mounting metal fitting 83 on which is mounted.
Engages near the base of the handle 54 of the holder 53 and slides in conjunction with the rotation of the holder 53.

Reference numeral 84 denotes a link formed of a steel plate or the like and abutting against the tip of the lever 82. The link 84 has a substantially central portion supported by one side surface of the support fitting 66 by a shaft 85, and One end has an engaging shaft 8 provided on the lifting table 69.
6, the rotation of the holder 53 is converted into vertical sliding of the lift table 69. Reference numeral 87 is a water container provided behind the heater block 41, and the bottom of the water container 87 communicates with an electromagnetic pump 88 which is a pressurized water injection means provided on the base 67 below the water container 87. A suction port 89 is provided. 90 is a saucer provided below the capsule base 74, and 91 is a demitasse cup 92 for coffee of this kind.
Is a receiving plate on which is mounted.

Reference numeral 93 denotes a capsule in which coffee powder 94 to be extracted is sealed, and this capsule 93 has a capsule body 95 formed of a thin film of aluminum or the like having an obtuse angle and a substantially conical shape, and a convex spherical shape at a substantially central portion thereof. Has a weak line portion 96 formed of a thin wall portion that is expanded by pressure and opens, and a bottom portion 97 formed of a thin film of aluminum or the like, and coffee enclosed in the capsule body 95 with a gap from the bottom portion 97. Powder 94
And a filter 98 having an opening suitable for straining the capsule body 95 and extending the capsule body 95 to form an outer peripheral rim 99 which is a locking portion of the capsule 93. It is constructed by crimping seams 97.

The dimensional relationship between the capsule base 74 and the capsule 93 is defined by the outer peripheral rim 99 of the capsule 93 to the bottom portion 9.
7, the depth from the shoulder 73 of the capsule base 74 to the tip of the bite rib 77 is longer than the length to the lower end of 7, and the diameter of the outer peripheral rim 99 of the capsule 93 is larger than the groove width of the guide groove 72. Moreover, it is configured to be smaller than the length between the shoulders 73 of the capsule base 74. Therefore, even if the outer peripheral rim 99 of the capsule 93 is locked to the shoulder portion 73 of the capsule base 74 and the outer peripheral rim 99 slides on the shoulder portion 73, the weak line portion 96 of the capsule 93 contacts the upper end of the bite rib 77. There is no such thing.

The operation of the above arrangement will be described below. First, put the required amount of water in the water container 87, and heat the heater 4
Energization to 3 is started. When a predetermined time has elapsed, the heater block 41 starts to be controlled to a predetermined temperature by an automatic temperature controller (not shown). Next, as shown in FIG. 3, the handle 54 of the holder 53 is rotated in the front direction (the direction opposite to the water container 87) to lower the capsule base 74, and
Then, as shown in FIG. 5, the outer peripheral rim 99 of the capsule 93 is locked to the shoulder portion 73 at one end of the capsule base 74 (the side opposite to the water container 87), and the capsule 93 is slid. At this time, the capsule 93 is laterally guided by the opposing side surfaces of a pair of hook plates 75 that are narrower than the outer diameter of the outer peripheral rim 99 and are wider than the outer diameter of the substantially conical capsule body 95. And the shoulder portion 7 wider than the outer diameter of the outer peripheral rim 99.
3, the outer peripheral rim 99 is guided in the vertical direction by the back surface of the pair of hook plates 75 protruding above and the shoulder portion 73, and the bottom portion 97 of the capsule 93.
Moves almost linearly to the water container 87 side without contacting the upper end of the bite rib 77.

When the capsule 93 slides just below the guide ring 56, the shoulder 73 receiving the outer peripheral rim 99 ends, so that the capsule 93 rests on the bite rib 77 of the capsule seat 78 against the outer periphery of the bottom 97. Positioned in close contact. Then, the handle 54 is pushed and rotated backward (toward the water container 87) to raise the capsule base 74 via the lever 82, the link 84, and the elevating base 69. At this time, the capsule 93 placed on the capsule base 74 is
The nozzle 60 is guided by the accommodating portion 60 of the guide ring 56 having substantially the same shape as the above, and the tip thereof is pierced by the needle-shaped nozzle 59 to open the nozzle hole 61 in the capsule 93.

Further, a holder 53 is provided via a handle 54.
When the capsule base 74 is rotated, the capsule base 74 is lifted and the capsule 93 that abuts on the upper end of the bite rib 77 of the capsule seat 78.
When the capsule base 74 is further lifted because the diameter of the bite rib 77 is smaller than the diameter of the lower end of the accommodation portion 60 of the guide ring 56 when the outer peripheral rim 99 of the guide ring 56 is pressed against the upper end of the guide ring 56 from above and the capsule base 74 is further lifted. While the rib 77 enters the storage portion 60, it bites the outer peripheral rim 99 of the capsule 93 to hold the capsule 93 in an airtight manner. In this way, the setting of the capsule 93 is completed.

Next, the demitasse cup 92 is placed in the capsule seat 78.
Is placed on the receiving plate 91 below the discharge port 76 of the pump 88.
The water in the water container 87 is pumped to the water pipe 44 of the heater block main body 42 from the discharge pipe (not shown) of the pump 88 via the pump 88. The water sent to the water pipe 44 circulates in the vicinity of the outer periphery of the heater 43 by the spiral water passage 47, is boiled into hot water, and exits from the outlet 48. Further, the hot water presses the valve 63 by the discharge pressure from the pump 88, and is sprayed from the nozzle hole 61 of the nozzle 59 onto the coffee powder 94 in the capsule 93. Then, the hot water pumped into the capsule 93 passes through the coffee powder 94 and is filtered by the filter 98, and the weak pressure line portion 96 of the bottom portion 97 is opened by the discharge pressure and the demitasse cup 92 is discharged from the discharge port 76.
It is poured into and coffee is made.

Next, when removing the capsule 93, the handle 54 is rotated in the forward direction to disengage the engaging portion 81 of the holder 53 from the hook piece 79, and at the same time, the lever 82 is released.
Then, the contact of the link 84 and the link 84 is released, and the capsule base 74 is lowered. Furthermore, when coffee is continuously extracted, as shown in FIG.
Similarly to the above, a is brought into contact with the outer peripheral rim 99 of the new capsule 93a at the end of the shoulder portion 73 and inserted into the capsule seat 78.
At this time, the extracted capsule 93b is the new capsule 93a.
It is pushed by the guide groove 72 and moves to the descending inclined surface 71 of the guide groove 72, and from its own weight through the notch hole 70 of the elevating table 69 to the tray 90.
It falls inside and is stored. After that, coffee is extracted by repeating the above.

As described above, according to this embodiment, when the handle 54 provided on the holder 53 is rotated, the handle 54 is placed on the capsule base 74 via the lever 82, the link 84, and the lift 69. The capsule 93 can be easily stored in the guide ring 56, and at the same time, the guide ring 56 and the capsule base 74 can be airtightly held to surely brew coffee. In addition, before the coffee extraction, the capsule 93 is locked to one end of the shoulder 73 of the capsule base 78 and then inserted and placed on the capsule seat 78. After the coffee extraction, the new capsule 93a before extraction is the same as above. When locked and inserted into the shoulder portion 73, the extracted capsule 93b is pressed by the new capsule 93a, and the inclined surface 7
Since it falls from No. 1, preparation for coffee extraction and cleaning after extraction can be easily performed, and the weak line portion 96 of the bottom portion 97 of the capsule 93 has the bottom portion of the guide groove 72 and the upper end of the bite rib 77 of the capsule seat 78. It is placed on the capsule seat 78 without contacting the. Therefore, the weak line portion 96 is not damaged before extracting coffee or the like,
Capsule 93 by pump 88 when extracting coffee etc.
After the internal pressure is increased, this pressure causes the capsule 9 to
Since the weak line portion 96 of the bottom portion 97 of No. 3 is broken and coffee or the like is extracted from the beginning with high pressure, delicious coffee or the like can be obtained.

In the above embodiment, the guide groove 72 has a substantially U-shaped cross section, but instead of the shoulder 73, a guide rod made of a wire material such as a steel wire may be used.
The outer peripheral rim 99 of No. 3 can be sequentially fed under the guide ring 56, and the weak line portion 96 of the bottom portion 97 of the capsule 93 can reach the bottom portion of the guide groove 72 and the upper end of the bite rib 77 of the capsule seat 78. It's good if you don't touch. Further, in the direction of the guide groove 72, the capsule 93 passes below the guide ring 56 from the near side, and
Although the capsule 93 is made to fall from the slanted surface 71 at the back of 2, the capsule 93 may be made to enter from either the left or right direction, pass below the guide ring 56, and fall to the other. It suffices to guide 93 so that it passes below the guide ring 56.

Further, the guide groove 72 having a substantially U-shaped cross section is
The cross-section has the same shape and is extended from the near side below the guide ring 56, but the cross-sectional shape and the passage of the capsule 93 only have to satisfy the above-mentioned purpose. The point is that the capsule 93 passes below the guide ring 56. Just do it. Furthermore,
The cross-sectional shape of the guide groove 72 need not be substantially U-shaped,
The point is that the weak line portion 113 of the bottom portion 97 of the capsule 93 does not come into contact with other portions when the capsule 93 is locked by the shoulder portion 73 and slid.

[0026]

As described above, according to the present invention, a substantially conical shape is provided, and an outer peripheral rim extending outward is provided in the outer peripheral portion near the bottom surface, and an extract such as coffee powder is enclosed therein. A capsule, a nozzle for ejecting hot water guided through a boiling water unit having a heater into the capsule, and a substantially conical shape that surrounds the nozzle and is substantially the same as the outer shape of the capsule, and stores the capsule. And a capsule base that accommodates the capsule in the guide ring and that hermetically holds the capsule together with the guide ring via the outer peripheral rim of the capsule that abuts the lower end of the guide ring. There is. in this way,
Since the capsule containing the extract such as coffee powder is used, it is not necessary to measure the coffee powder etc. and put it in the filter at the time of use. Further, since the capsule has a substantially conical shape and the accommodating portion of the guide ring has substantially the same conical shape as that thereof, the substantially conical capsule is utilized in the substantially conical accommodating portion of the guide ring by utilizing its inclination. The capsule can be stored, and when the storage is completed, the capsule is hermetically held by the guide ring and the capsule base via the outer peripheral rim of the capsule, so that the capsule can be set easily and satisfactorily. be able to. The structure is simple and the operation is easy, and the usability is good.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view of a coffee extraction device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the entire extraction device.

FIG. 3 is a cross-sectional view showing an enlarged main part of the extraction device.

FIG. 4 is a perspective view showing an enlarged main part of the extraction device.

FIG. 5 is an explanatory diagram showing a state in which a new capsule before extraction is inserted and an extracted capsule is discharged.

FIG. 6 is a cross-sectional view showing a conventional device for extracting coffee or the like.

[Explanation of symbols]

 41 Heater Block 43 Heater 56 Guide Ring 60 Storage 59 Nozzle 74 Capsule Base 93 Capsule 94 Coffee Powder 99 Peripheral Rim

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeo Nishida 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A capsule having a substantially conical shape, an outer peripheral rim extending outward in the outer peripheral portion near the bottom surface, and enclosing a substance to be extracted such as coffee powder, and a boiling water unit having a heater. A nozzle for ejecting the guided hot water into the capsule, a guide ring that surrounds the nozzle and has a substantially conical shape that is substantially the same as the outer shape of the capsule, and that has a storage portion for storing the capsule; Is stored in a guide ring, and a brewing device for coffee or the like is configured by a capsule base that hermetically holds the capsule together with the guide ring via an outer peripheral rim of the capsule that abuts a lower end portion of the guide ring.