JPS61119220A - Extractor for coffee,etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for extracting coffee, etc., which obtains an extract liquid by injecting hot water under pressure into a material to be extracted, such as coffee powder.

Conventional Structures and Problems Generally speaking, it is preferable to extract coffee at a high temperature, in a short period of time, and evenly from the entire coffee. For this reason, coffee brewing devices that pressurize with a pump or the like to extract coffee in a short period of time have conventionally been used.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A conventional coffee extraction device as described above will be described below with reference to one drawing.

Figure 1 shows a conventional extraction device for coffee, etc.A.
In FIG. 1, 1 is a heater block, which includes a block body 2 and an upper cover 3.

The lower cover 4 is made of a good thermal conductor such as aluminum. The block body 2 has a spiral groove 5 for a water channel on its surface, and a spiral heating element 6 embedded in its back surface. Further, a through hole 7 is provided in the center thereof in communication with the water channel groove 6. 8 is block body 2
A seal ring is provided on the outer periphery of the upper cover 3.
is provided in a watertight manner to close the upper surface of the groove 5 to form a water channel 6a. The lower cover 4 has the through hole 7 and the O ring 9.
A recess 1o having an aperture 102L that communicates with the aperture 102L in a watertight manner is provided in the recess 10, and a valve 1 for closing the aperture 101L is provided in the recess 10.
1, and a valve spring 12 for biasing the valve 11 is provided by screwing onto a valve seat 13. 14 is a mounting screw 15 on the valve seat 13.
It is a diffuser plate screwed on.

Reference numeral 16 designates an electromagnetic pump, which connects a suction pipe 18 with one side open at the bottom of the water container 17, and a water channel 5& of the heater block 1 formed by the groove 5 of the block body 2. The connecting pipe 19 is connected to the connecting pipe 19 . 192L is an on-off valve provided between the connection pipe 19 and the waterway 6B, which closes the drain pipe 19b when the pump 16 is operated in conjunction with the operation of the pump 16, and connects the connection pipe 19 and the waterway 6&. When the pump 16 is stopped, the drain pipe 19b and the connecting pipe 19 are communicated with each other.

Reference numeral 20 denotes a hook plate with a central opening provided at the lower part of the lower cover 4.
There is a filter holder 2 with a handle 21 around it.
2, a plurality of notches 24 provided around the upper end of 2 into which the plurality of claws 23 are loosely fitted, and a plurality of retaining pieces that engage with the claws 23 when the fill letter holder 220 rotates after the claws 23 are loosely fitted. 25 are provided for each. 26 is a filter housed in the filter holder 22, and 27 is a seal backing that is engaged with the lower cover 4 and comes into airtight contact with the upper end of the filter 26. In addition, the filter holder 22
An outlet 28 is provided at the lower end of the tapered surface facing the center.

Reference numeral 29 is a receiving plate provided with a large number of holes for placing a demitasse coffee cup 3o containing this type of coffee, and 31 is a receiving plate. Further, 32 is an automatic temperature controller that is thermally attached to the block body 2. Reference numeral 33 denotes powder stored in the filter 26.

The operation of the extraction device configured as described above will be explained below.

First, fill a water container with the required amount of water. Next, the heating element 6″
'When power is started, the automatic temperature controller 32 (
The temperature is controlled to a predetermined temperature. Then, a predetermined amount of coffee powder 33 is put into the filter 26 housed in the filter holder 22, and the coffee powder 33 is rotatably engaged with the hook plate 2o. The preparation for coffee extraction is now complete.

Next, set the demitasse coffee cup 3o on the receiving plate 29 which is almost directly below the outlet 28 of the filter holder 22, and at the same time operate the operation switch (not shown) of the pump 16, connect the connecting pipe 19 with the on-off valve 191L. The pump 1 closes the circuit between the drain pipes 19b and pumps the water in the water container 17.
6 into the block body 2 via the suction pipe 18 and the connecting pipe 19. The water pumped into the block main body 2 is boiled by heat transfer from the heater block 1 while passing through the spiral water channel 5 & becomes hot water, passes through the through hole 7, presses the valve 11, and is energized and diffused. It passes through the coffee grounds 33 through the plate 14, extracts the coffee liquid, and flows out from the outlet 28 into the demitasse coffee cup 3.
Poured into 0.

When the appropriate amount of coffee has been extracted into the demitasse coffee cup 3o, the operation switch (not shown) of the pump 16 is operated to stop the pump 16, and at the same time the on-off valve 19& is operated to open the circuit between the water channel 5SL and the drain pipe 19b. to remove the water pressure remaining in the waterway 6& and reduce the pressure within the waterway 6&.

However, with the above configuration, the coffee powder 33 must be weighed and put into the filter 26 one by one, and the filter 26 gets dirty after one extraction, so if you do not wash it off after extraction, you will not be able to get a good cup of coffee. figure,
Furthermore, the extraction device was large-scale and very inconvenient to use.

OBJECTS OF THE INVENTION In view of the above-mentioned conventional drawbacks, it is an object of the present invention to provide an easy-to-use coffee extraction device.

Structure of the Invention In order to achieve the above object, the coffee extraction device of the present invention is provided with a saucer at the front and a pump at the rear. a water container located in front of the water container and above the saucer and having a waterway communicating with the pump; a holder located below the water heating unit; It is composed of a lifting platform that stores an extract, moves up and down below the holder, and engages with the holder. According to this configuration, an elevator that stores an extracted material such as coffee powder. With the simple operation of raising the holder and engaging it with the holder, you can always obtain delicious coffee or other extracted liquid.After extraction, all you need to do is remove the material to be extracted from the lifting platform, making it very easy to use. It is something that becomes something.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

2 to 8 show a coffee extraction device according to an embodiment of the present invention. In FIGS. 2 and 3, numeral 41 denotes a base made of synthetic resin, etc. stand 4
1 includes a saucer 42 made of synthetic resin or the like that can be pulled out in the front direction.

In addition, an electromagnetic pump 43 and a plurality of vibration-proof rubber 44 are installed at the rear.
Further, this base 41 is supported via a side plate 45 by a back plate 4 having rubber legs 4θ. Reference numeral 48 denotes a water container made of synthetic resin, etc., which is installed upright by the road force of the pump 43 located at the rear of the base 41. This water container 48 has a first recess 49 on the right side and a first recess 49 on the left side. A second recess 6o is provided on each surface, and a water supply hole 51 provided at the bottom is connected to a communication bushing 52 made of silicone rubber or the like.
It is communicated with the suction hole 53 of the bond 43 through. Reference numeral 54 denotes a support fitting erected approximately in the center of the base 41 with a screw or the like and formed of a steel plate or the like, and this support metal fitting 6
4 is formed in a substantially U-shape that is open to the rear, and has a substantially rectangular opening 56 on the front thereof, and a right side surface 66 and a left side surface 57 that allow a portion of the water container 48 to be turned inward. It is stored.

Reference numeral 68 denotes a mounting bracket placed across the upper part of the support bracket 54 and a part of the water container 48 held between the right side 66 and left side 57 of the support bracket 54; A water boiler 1 is connected to the top of the water heater 1 through a plurality of spacers 69.
Equipped with Nitsu 1I6o.

In FIG. 4, the water boiling unit 60 has a heater block body 61 made of a good thermal conductor such as aluminum die-casting, and a substantially cylindrical heater 64 in which a heating wire 62 is filled with insulating powder 63 is installed for good thermal conductivity. water pipe 6
It is equipped with 5. This water pipe 65 is provided with a continuous spiral groove 66 from one end to the other on its outer peripheral surface, and seal rings 67 are provided at both ends of the water pipe 65. is formed.

Reference numeral e9 denotes an inlet located at the entrance of the water channel 68 and provided on one surface of the heater block body 61.

Reference numeral 7o denotes a check valve screwed onto the inlet 69, and the check valve 70 communicates with a spout (not shown) of the pump 43 through a pipe 71. 72 is an outlet provided at the bottom of the heater block main body 61.

Reference numeral 73 designates an outlet port which is branched in the middle of the water channel 68 and is provided opposite to the side surface of the heater block main body 61 opposite to the inlet port 690, and which is linearly connected to the inlet port 69 via the water channel 68; A substantially T-shaped control valve 74 is screwed onto the discharge lower 3 . The control valve 74 includes a substantially T-shaped control valve outer shell 74&, a valve body 76, a pressing body 77 that slides back and forth and presses the valve body 75 via the valve body spring 76, and the control valve 74. It is equipped with a drainage lower 8 for removing drained water. One end of a drain pipe 79 is attached to the drain lower 8, and the other end of the drain pipe 79 opens above the saucer 42.

In addition, 80 is a terminal plate of the heater 64, 81 is a set screw for screwing the water pipe 66 to the heater block main body 61, and 82 is a thermistor provided in the water heating unit (60) in a thermosensitive manner.

In FIG. 6, a ring plate 83 is located below the outflow lower 2 and has an opening 85 in the center that is airtightly communicated with an O-ring 84. It is screwed onto the lower surface of the shift heater block main body 61.

87 is located below the heater block main body 61,
The holder 8 has a substantially cylindrical shape with the ring plate 83 inside, and an operating hand 1V8B extending outward from the holder, and is integrally formed of zinc die-casting or the like.
7 is rotatably engaged with a stepped portion 89 located on the upper outer periphery of the ring plate 83 at its upper portion.

Reference numeral 9o denotes a guide ring detachably provided with a male threaded portion 92 that communicates with the opening 85 and is screwed into the female threaded portion of a stepped hole 91 provided in the ring plate 83. A nozzle 93 made of stainless steel or the like and having an acute tapered needle tip is press-fitted into the nozzle 93, and a storage portion 94 surrounding the nozzle 93 and having a substantially truncated conical shape is provided. The guide ring 9o is made of zinc alloy or the like.

The nozzle/L/93 is provided with a nozzle hole 96 that is branched into two directions at the lower end and opened in the tapered surface.
The guide ring 9o is screwed into the ring 96 so that it communicates with the opening 86 of the ring plate 83 in an airtight manner when the ring 96 is installed. 9T is a valve formed of silicone rubber or the like and provided at the stepped portion of the stepped hole portion 91, and this valve 97 is a valve spring 99 provided at the central opening 98 of the male threaded portion 92 of the guide ring 9o.
The opening 86 is biased in the direction of closing the opening 86.

In FIG. 6, 1oo is a support rod provided on the front side of the support fitting 54, and this support rod 100 is provided with an elevating plate 1o1 made of a stainless steel plate or the like so as to be able to rise and fall freely. The elevating plate 1o1 is provided with a notch 102 in the center thereof, and a guide groove 104 with a substantially U-shaped cross section that opens on a sloped surface 103 descending into the notch 102, and is made of aluminum die-casting or the like. Lifting platform 10
6 has been expanded. Furthermore, on the upper surface of the lifting platform 105.

A pair of left and right hook plates 106 are formed of zinc die-casting or the like and provided with a gap narrower than the U-shaped groove width of the guide groove 104. Further, at the lower center of the lifting platform 105, there is provided a disk-shaped capsule seat 108 made of stainless steel or the like, which has a discharge port 107 in the center and has a concave periphery.

,-o. 72. board,. 6 Yuo. It's time for an external force
(It is integrally equipped with a hook piece 109 that comes out, and this hook piece 109 slides upward together with the elevating plate 101,
When the elevating plate 1o1 reaches almost the upper end of the sliding range, the notch 1 provided around the lower opening of the holder 87
10 , and as the holder 87 rotates, it engages with the retaining portion 111 adjacent to the notch portion 110 .

3, 4, and 6, reference numeral 112 is formed of a steel plate or the like and is attached to the side of the mounting bracket 68 shown in FIG. This lever 112 is provided to be slidable in the longitudinal direction, and this lever 112 engages near the base of the hand 1VBB of the holder 87 and slides in conjunction with the rotation of the holder 870.

A link 113 is made of a steel plate or the like and has one end in contact with the recess 114 at the tip of the lever 112. This link 113 is supported by a shaft 115 on the right side surface 66 of the support fitting 54, and the other end is in contact with the recess 114 at the tip of the lever 112. is engaged with a retaining shaft 116 provided on the side wall of the elevating plate 101 and converts the rotation of the holder 87 into vertical sliding of the elevating plate 1o1, whereby the elevating table 105 is interlocked. Reference numeral 117 denotes an abutting piece that forms the recess 114 of the lever 112, and this abutting piece 117 is used when the elevating plate 101 slides almost to the upper end, and as described above, the hook piece 1
09 engages with the rotating engagement portion 111 of the holder 87, it slides into contact with the end portion 118 of the link 113 to maintain the lifting platform 10g at approximately the upper end position. The contact piece 117 is provided with a tenth square hole 119 and a second square hole 120, and the end portion 118 is provided with a protrusion 121 and a step protrusion 122 opposite thereto. 123 is the contact piece 1
17 is a protruding piece that protrudes from the lever 112, and 124 is a retaining piece that is provided on the upper part of the link 113. When the lifting table 105 is lowered, the protruding piece 12
3 to forcibly lower the elevator platform 106.

The lever 112, the link 113, the shaft 115, and the engagement shaft 116 constitute a lifting mechanism, and these are housed in the first recess 4e on the right side of the water container 48.

Reference numeral 126 denotes a printed circuit board for controlling an electric circuit, which is housed and fixed in the second recess 6o on the left side of the water container 48.

Reference numeral 126 denotes a rail made of synthetic resin or the like and fixed to the lever 112, and this sea A/126 moves in conjunction with the rotation of the handle 88 to push the pressing body 77 of the control valve 74 at the inclined surface 127. When the valve body spring T6 presses the valve body spring T6 through
releases the pressing force on the valve body 75, and the water channel 68 is opened above the saucer 42 via the drain lower 8 and the drain pipe 79.

Reference numeral 128 denotes a pair of parallel guide lips provided on the side wall 129 of the water container 48 adjacent to the lifting plate 101 that moves up and down. It is enclosed and extended downward. In addition.

The side wall 129 of the water container 48 and the guide lip 128
A drop hole 130 is formed by the support metal fitting 64 and the support metal fitting 64 .

In FIGS. 2 and 7, reference numeral 131 denotes a drainage hole provided at the bottom of the water container 48, and this drainage hole 131 is connected to the saucer 42 through the pulp 132 provided on the right side 66 of the support fitting 54. It opens upward. Note that the drainage hole 131 is normally closed with pulp 132. 1
A float switch 33 is provided at the bottom of the water container 48 and detects the level of water stored in the water container 48. Further, 134 is a Tetron filter provided in the water supply hole 61. 136 is an operating knob for the pulp 132, 136
137 is a lid of the water container 48, and 137 is a receiving plate located below the lifting platform 106 and provided at the opening of the base 41.
has a large number of holes 138 through which coffee dripped from the discharge port 107 of the lifting platform 106 passes into the tray 42, and a demitasse coffee cup 139 is placed thereon. 140 is a heat shield plate of the hot water heating unit 6o, 141 is its cover, and 142 is an operation switch provided on the operation spring/1'143.

In FIG. 6, reference numeral 144 denotes a capsule in which coffee powder 145 is sealed.
6, a bottom part 148 which has a convex spherical shape and has an east line part 147 that expands and opens when pressurized at approximately the center thereof and is formed of a thin film such as aluminum; The capsule body 146 has a filter 149 having an opening suitable for filtering the coffee powder 146 enclosed in the capsule body 146, and the capsule body 146 is further extended to form an outer peripheral rim 160, which is then crimped and seamed. Note that the end of the capsule body 146 is wrapped around the lower part of the outer rim 150 and sealed! It has been written.

The operation of the coffee extraction device configured as described above will be described below.

First, the hands 1v88 of the holders 8 and 7 are rotated in the forward direction (in the direction opposite to the water container 48) to lower the lifting platform 105. Accordingly, the V-#1 provided on the lever 112
The slope portion 127 of 26 is separated from the pressing body 77 of the control valve element 4, and the suppressing body 77 is pressed against the valve body 7 via the valve body spring 76.
6 is released, and the water channel 68 is opened via the drainage lower 8 and the drain pipe 79.

Next, fill the water container 48 with the required amount of water, and press the operation switch 14.
2 to start energizing the heater 64. Although the temperature of the water heater unit 60 increases with the passage of time, the water vapor pressure in the water channel 68 does not increase and the pressure escapes from the drain by differential 9 communicated with the control valve 74. When a predetermined period of time has elapsed, the thermistor 82 senses the temperature of the water heater 60, and the electrical circuit control printed circuit board 126 begins to control the supply of electricity to the heater 64.

Here, the capsule A/14 is inserted into the guide groove 104 of the lifting platform 106.
Insert 4. Capuse/L/144 is guide ring 9Q
When inserted, the capsule 144 is positioned by engaging the convex spherical bottom portion 148 with the concave capsule seat 108.

Next, the hand A/8B is pressed and rotated backward (towards the water container 48) to raise the elevator platform 105 via the lever 112, link 113, and elevator plate 101, and the lever 112
The slope portion 127 of the prepared sea/L' 126 contacts and presses the valve body spring 76 via the pressing body 77 of the control valve 74, thereby biasing the valve body 75. On the other hand, the capsule/L' 144 placed on the lifting table 105 is guided into the storage part 94 of the guide ring 9o, which has approximately the same shape as the capsule main body 146, and its tip is pierced by the needle-like nozzle tV93. A nozzle hole 95 opens in the capsule 144 .

As the handle 88 continues to rotate, the recess 114 of the V-bar 112
When the capsule base 106 reaches the protrusion 121 of the end portion 118 of the link 113, the capsule base 106 reaches almost the upper end of the sliding range together with the elevating plate 101, and then the handle 88
Even if the lever 112 is rotated, the terminal part 11 will not close to the contact piece 11.
8, the link 113 cannot rotate and therefore rises; the link 105 also does not rise. At this time,
A hook piece 109 provided on the lifting table 105 is inserted through a notch 110 of the holder 87. Hand/l/88
When the holder 87 is further rotated through the hook piece 1
09 and the inner surface of the retaining part 111 of the holder 87, the lifting table 106 is further lifted up. The elevator platform 105 lifts and the capsule 144 comes into contact with the capsule seat 108.
When the outer rim 150 of the capsule 144 is pressed against the lower end of the guide ring 90 from above to airtightly hold the capsule 144, the setting of the capsule lv 144 is completed. On the other hand lever 112
At the link 113, the lever 112 further slides rearward in conjunction with the rotation of the hand/l/880. At this time, the protrusion 121 provided on the terminal portion 118 of the link 113 is
First square hole 119 provided in the contact piece 117 of the lever 112
and engages with the second square hole 120, and the step protrusion 122 of the terminal portion 118 and the first square hole 119.
The capsule, 44° cuff, Yaa 1, generates a sound every time the end face of the first square hole 119 passes over each step part of the step protrusion 122. 8□a4. ．． 2 pieces
(Represents the holding state by 9o.

Next, place the demitasse coffee cup 139 into the capsule seat 10.
When the water container 48 is placed on the receiving plate 137 below the discharge port 107 of the water container 48 and the operation switch 142 is operated to start the operation of the pump 43, the water in the water container 48 passes through the pump 43 to the discharge pipe of the pump 43 (Fig. (not shown) from the pipe 71, and from the inlet θ9 of the heater block main body 61 via the check valve A0 to the water channel 68.
is pumped to. The pumped water circulates near the outer periphery of the heater 64 through a spiral waterway 68, is boiled into hot water, and flows out from the outflow lower 2. Furthermore, this hot water presses the valve 97 by the discharge pressure from the pump 43, and the nozzle/L/9
Coffee powder 1 in the capsule 144 from the nozzle hole 96 of 3
Sprayed on 45th.

The hot water force-fed into the capsule 144 passes through coffee powder 145 and is filtered by a filter 149.
From 07 onwards, the coffee is poured into the demitanu coffee cup 139 and the coffee is completed.

Next, the exclusion of capsule/L/144 will be explained.

First, the handle 88 is rotated toward the front, and at the same time, the engagement part 111 of the holder 87 and the hook piece 109 are released from each other, and the contact piece 117 of the lever 112 and the end part 11 of the link 113 are released.
8 is released from the contact, the lifting platform 106 descends under its own weight. However, the capsule/l stored in the guide ring 9o
/144 is brought into pressure contact with the lower end surface of the guide link 9o and the upper surface of the capsule seat 108 during extraction, and is press-fitted into the substantially conical tapered side wall of the housing portion 94 of the guide ring 90 to be held airtight. Therefore, the capsule 144 is housed in the guide ring 9o! The elevator platform 106, which has descended independently, stops by hooking the end of the hook plate 106 on the outer rim 150 of the capsule A/144.

In this state, when the hand 1v88 is further rotated toward the front, the lever 1 is attached to the engaging piece 124 of the waiting link 113.
12 protruding pieces 123 are engaged, and the rotating force of the hand 1v88 pushes down the elevating table 105 via the lever 112, the link 113, and the elevating plate 101, and the end of the hook plate 106 is attached to the outer rim 150 of the capsule 144. The capsule 144 comes into contact with the guide ring 90 and leaves the capsule 144 .

When brewing coffee continuously, as shown in FIGS. 3 and 8, the new capsule 161 before extraction is inserted between the guide groove 104 of the lifting platform 106 and the pair of hook plates 1 in the same manner as described above.
Outer rim 150' between 06! i-Insert until the capsule seat 108 is secured.

At this time, the extracted capsule 162 is pressed by the new capsule 161 and moves to the descending slope 103 of the guide groove 104, and is supported by the side wall 129 of the water container 48 and the guide rib 128 from the notch 102 of the elevating plate 101 by its own weight. Metal fittings 54
The saucer 42 is guided by the drop hole 130 formed by the
It falls inside and is stored. After that, repeat the above procedure to extract coffee.

As described above, according to this embodiment, the capsule/l/144 containing coffee powder 146 is set on the lifting platform 105,
After extraction, receive Capsule/L/144 from drop hole 130 @4
2, it is easy to prepare coffee powder before extraction and to clean and maintain the extraction device after extraction, making it easy to obtain coffee.

In the above embodiments, the coffee powder is encapsulated in a capsule, but the container for storing the coffee powder does not need to be sealed, as long as it can contain and extract a certain amount of coffee powder.

Moreover, although coffee powder is used as the material to be extracted, it goes without saying that it is not necessary to limit the extract to coffee powder.

Effects of the Invention As described above, according to the present invention, there is provided a water container which is provided with a saucer in the front part and a pump in the rear part, is erected at the rear of a base, and whose bottom part communicates with the pump; a water boiling unit located in front of the water container and above the saucer and having a waterway communicating with the pump; a holder located below the water boiling unit; storing a material to be extracted such as coffee powder; It consists of a lifting platform that moves up and down below the holder and engages with the holder, so it is as simple as raising the lifting platform containing the material to be extracted, such as coffee powder, and engaging it with the holder. A delicious coffee extract can always be obtained by simple operation, and after extraction, it is only necessary to remove the material to be extracted from the lifting table, making it very easy to use.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing a conventional coffee brewing device, and FIG. 2 is a cross-sectional view of a coffee brewing device showing an embodiment of the present invention.
FIG. 3 is a cross-sectional view of the same, FIGS. 4 and 5 are enlarged sectional views of the same essential parts, FIG. 6 is a perspective view of the same main parts, FIG. 7 is a perspective view of the same coffee extraction device, and FIG. The figure is an enlarged partial sectional view of the main part. 41...Base, 42...Saucer, 43.
·····pump. 48...Water container, 60...Kettle, unit, 68...Waterway, 87...Holder, 105...Elevating platform. 106...Hook plate, 111...Engaging portion. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 13.9 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] A water container that is provided with a saucer at the front and is installed at the rear of a base that is equipped with a pump at the rear, and whose bottom part communicates with the pump, and a water container that is located in front of the water container and above the saucer. A water heating unit having a water channel communicating with the pump, a holder located below the water heating unit, and a material to be extracted such as coffee powder are housed, and the water heating unit is moved up and down below the holder, and the holder is placed in the holder. A brewing device for brewing coffee, etc., consisting of an engaging lifting platform.