JPH0146135B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rotary extraction device.

Generally, a drip type coffee extraction device is constructed by constructing a water tank 1 on a base 2 as shown in FIG. A heater 3 is provided in the middle of the pipe 4, and the other end is made to stand up along the side wall of the water tank 1, and then the container 7 placed on the heater 3 is placed so as to face above the coffee basket 8. It is configured to be open. The water flowing from the water tank 1 is heated by the heater 3 and boiled, and its expansion force causes it to rise inside the pipe 4 and gradually squirt out into the coffee basket 8 from its opening 5. The extracted coffee liquid evenly permeates the coffee powder in the coffee basket 8 and naturally falls into the container 7 until the water in the water tank 1 runs out. However, a part of the water in the water tank 1 remains contained in the coffee powder, so there is a drawback that the amount of coffee liquid in the finished container 7 is smaller than the amount of water in the water tank 1. Furthermore, the hot water gushing out from the opening 5 of the pipe 4 is transferred to the coffee basket 8.
The drawback was that the coffee liquid could not be extracted sufficiently unless it was evenly distributed and sprinkled on the coffee powder inside.
Therefore, in order to extract the desired coffee liquid, it becomes necessary to use a large amount of coffee powder, which is uneconomical.

The present invention aims to eliminate such conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

FIG. 2 is a schematic external perspective view of the present invention. 10
50 is a rotary extractor, and 46 is a container.
A rotary extractor 50 containing coffee powder in the main body 10
Attach the empty container 46, remove the lid 28 of the water storage tank 14, fill it with water, connect the power cord 51 to an AC power source, and turn on the switch 45. After a predetermined period of time, hot coffee liquid will fill the container 46. can get.

FIG. 3 is a partial cross-sectional view of the main body 10 with the rotary extractor 50 and container 46 removed. Reference numeral 10 denotes the main body of the rotary extractor, which is assembled on the upper surface of a base 11 in the shape of a flat rectangular container, and is shaped like a rectangular box with both upper and lower sides open. A water storage tank 14 is formed on the right side of the upper opening by a main body frame 12 and an upper right partition frame 13, and a drainage hole 15 is provided at the horizontal bottom to which one end of a water pipe 16 is connected. , the other end is connected to one end of an annular water boiling pipe 18 in the heater 3 buried in the base 11. On the other hand, a substantially U-shaped space sandwiched between the upper left partition frame 19 and the main body frame 12 is formed on the left side of the upper opening, and a notch 20 is formed at the bottom of the vertical part of the upper left partition frame 19. Furthermore, a circular side wall 21 is provided upright on the horizontal bottom portion thereof, and a plurality of engagement grooves 29 are provided inside the circular side wall 21. Then, a hot water conduit 23 is locked inside the lid 22 that covers the approximately U-shaped space, and the tip of the hot water conduit 23 is formed so as to face the center of the circular side wall 21, and the other end is attached to the base. It is connected to the other end of the annular water boiling pipe 18 in the heater 3 embedded in the heater 11 . The lower opening of the main body 10 forms a box-shaped space sandwiched between the lower partition frame 24 and the main body frame 12, and the center of the electric motor 25 is aligned with the center of the circular side wall 21 and is screwed into the box-shaped space. Match. Further, a drive shaft 26 of the electric motor 25 is made to protrude into the upper opening, and a rotary coupler 27 is fixed to the tip thereof. Note that 28 is a lid of the water storage tank 14, which is fitted so as to be detachable.

FIG. 4 is a cross-sectional view showing details of the rotary extractor 50, and 30 is an outer tank of the rotary extractor 50. An extraction port 31 is provided at the lower part of the outer tank in the shape of a cylindrical container. Boiler circular side wall 21
A locking piece 33 is provided with a vertical side wall 32 having an outer diameter that is inscribed in the rotary extractor, and a locking piece 33 for detachably fitting the rotary extraction device.
are integrally formed. Reference numeral 34 denotes an inverted cone-shaped rotary tank, which has a shaft 35 molded at its bottom, is slid onto the center of the rotary extractor 50, is sealed with a sealing material 36, and has a rotary coupler 37 at its tip. It is fixed. Also, rotating tank 3
4, a plurality of convex portions 37 and concave portions 38 are formed alternately in the vertical direction and are arranged over the entire circumference. Holes 39 are provided in the upper portions of all of the recesses 38 near the edges. 40 is a rotating tank 34
The lid body has a protruding part 42 provided in the center thereof extending from the central part of the lid body 41 of the rotary extraction device 50.
A through hole 43 is provided through which it is inserted. Note that a plurality of transparent windows 44 are provided in the protrusion 42 of the lid 41.

To explain the operation of the rotary extraction device having the above configuration with reference to FIG.
A filter 47 is placed in the rotary tank 34 of the rotary extractor 50, an appropriate amount of coffee powder is put in, and the lids 40 and 41 are attached. When the set rotary extractor 50 is inscribed and fitted into the circular side wall 21 provided on the left side of the rotary extractor, the rotary extractor 50 is locked in the locking groove 29 provided on the circular side wall 21. At the same time as the piece 33 is locked, the rotary coupler 27 of the rotary extractor and the rotary coupler 37 of the rotary extractor 50 are coupled. Next, when a predetermined amount of water is poured into the water storage tank 14, the water fills the water pipe 16 and the annular water heating pipe 18 through the drain hole 15, and the switch 45
When turned on, the heater 3 is energized. As the temperature of the heater 3 increases, the annular water boiling pipe 18 inside the heater 3
When the temperature of the water filling the tube rises and the boiling water pressure increases, hot water begins to drip from the tip of the hot water conduit 23. In addition, water conduit 16 and drainage hole 1
A check valve is provided between the hot water pipes 5 and 5 to prevent the high temperature hot water in the annular water boiling pipe 18 from flowing back into the water storage tank 14. The high temperature hot water dripping from the tip of the hot water conduit 23 is transferred to the protrusion 42 of the lid 41 of the rotary extractor 50.
After passing through a plurality of transparent windows 44, the liquid is evenly dispersed and dripped into the rotating tank 34. When the electric motor 25 rotates after the coffee powder is sufficiently infiltrated, the rotating tank 34 also rotates, and the coffee liquid passes through the filter 47 and gradually rises along the concave portion 38 and is scattered outside through the hole 39 to the bottom of the rotary extractor 50. is collected and falls into the container 46 from the bottom extraction port 31. The above rotational extraction operation continues until the water in the water storage tank 14 runs out, and when the water runs out, the temperature of the heater 3 rises, and the temperature overrise prevention installed nearby works to cut off the power to the electric motor 25, causing it to rotate. Extraction work is completed. The water guide pipe 16, the hot water boiling pipe 18, and the hot water pipe 28 are connected together to form a pipe body 52.

As described above, in the present invention, since the tank for extracting coffee, black tea, green tea, etc. is rotated, the coffee liquid is actively squeezed out by the centrifugal force, so that sufficient extraction is performed and the amount of coffee powder can be reduced. It is economical. Also, because it is forced manually, by a spring, or by an electric motor,
This method has the advantage of increasing the dripping speed of hot water and shortening the extraction time. In addition, in the present invention, it is also possible to attach a so-called coffee mill, which has substantially the same external dimensions and locking part as the rotary extractor and is equipped with a cutter inside, as a separate part and use it as a coffee extractor with a mill.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway view of a conventional coffee brewing device, Fig. 2 is a perspective view of an embodiment of the rotary brewing device of the present invention, and Fig. 3 shows a part of the main parts of the rotary brewing device of the present invention. FIG. 4 is a sectional view showing details of the rotary extractor, and FIG. 5 is a partially cutaway view of the rotary extractor in operation for explaining the present invention. Here, 14... water storage tank, 52... pipe body,
3... Heater, 27, 37... Rotating coupler, 25
... Rotation drive unit, 31 ... Bottom extraction port, 34 ...
Rotating tank, 30... is an outer tank.

Claims (1)

[Claims] 1. A water storage tank, a tube whose one end is connected to the water storage tank and whose other end is open to draw out the water in the water storage tank, and a heater installed in the middle of the tube to heat the water in the tube. a rotational drive unit having a rotation source and a rotational coupler that transmits the rotation to another; a rotational coupler that is detachably coupled to the rotational coupler, and is supplied from the open end of the tube body. A rotary extraction device comprising: a rotary tank having an opening for receiving hot water; and an outer tank surrounding the rotary tank and having a bottom extraction port for collecting and discharging the extracted liquid ejected from the rotary tank.