JPS6334586Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coffee maker with a mill capable of grinding coffee beans in a coffee filtration container, and particularly relates to a mounting structure for a cutter for grinding coffee beans.

Some conventional coffee makers with a grinder can automatically perform everything from grinding coffee beans to extracting coffee liquid, and have become popular as a way to easily make authentic coffee.

By the way, in general, there are various conditions for making delicious coffee, but for example, it is said that coffee powder must have a uniform particle size and be free of coffee bean skins and fine powder.

It is said that the skins of coffee beans impart an astringent taste to the extracted coffee liquid, and the particle size of coffee grounds is such that the coffee liquid is not extracted uniformly from each raw coffee powder. It is not possible to control the acidity, bitterness, etc. of coffee powder, and the fine powder of coffee powder clogs the filter during the extraction process, which causes the coffee liquid to take too long to extract and the coffee liquid becomes lukewarm. When coffee powder comes in contact with hot water for a long period of time, harmful components such as acidity and bitterness are extracted from the coffee liquid more than necessary, resulting in the coffee becoming unpalatable. Therefore, it could not be said that the above-mentioned coffee makers were able to sufficiently bring out the original taste of coffee beans.

Also, even if you drink delicious coffee in a relaxed and relaxed mood, if you have trouble cleaning up afterwards, this relaxed feeling will be ruined, so it is desirable to have something that is as easy to clean as possible. be.

This invention was made based on the above requirements, and includes a main body having a drive motor, and a coffee filtration container detachably attached to the main body to store coffee beans and extract coffee liquid from ground coffee powder. a partition member that is detachably provided in the upper part of the coffee filtration container and has an air passage through which air in the coffee filtration container circulates;
A main shaft detachably connected to the drive motor and rotatably supported by the partition member; a blade fixed to the main shaft for crushing coffee beans in the coffee filter container; and an interior space of the coffee filter container. To provide a coffee maker with a grinder, which is equipped with a cutter having wings that generate a swirling airflow, is capable of removing fine coffee powder and bean skins, has a simple cutter mounting structure, and is easy to clean. .

An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

In the figure, 1 is the main body of a coffee maker with a mill that has a water container 2, 3 is a hot water generator that converts water from the water container 2 into hot water using a sheathed heater (not shown), and 4 is hot water from a discharge port 5. A discharge pipe 6 for discharging the water is a drive motor provided within the main body 1.

Reference numeral 7 denotes a coffee filtration container attached to a corresponding position below the drive motor 6 and the discharge port 5, and the container body 8 is in the shape of an inverted truncated cone and has a cylindrical portion at the top.
and a hot water pan partition plate 9 fitted into the cylindrical portion of the container body 8. 10
11 is a paper filter that is installed in close contact with the inside of the container body 8; 11 is a filter holder made of, for example, a wire mesh, which has approximately the same shape as the inner shape of the paper filter 8; and 12 is a filter holder that is made of a wire mesh; It is a through hole provided at the bottom. Reference numeral 13 denotes a cylindrical rotation bearing provided approximately at the center of the water fountain partition plate 9, 14 a cylindrical wall formed concentrically on the outside of the rotation bearing 13, and 15 a rotation bearing. An annular through hole formed by 13 and the cylindrical wall 14, 16 three connecting walls that integrally fix the rotation bearing 13 to the cylindrical wall 14, and 18 corresponding to the discharge port 5 of the discharge pipe 4. 21 is a plurality of hot water dripping holes equally spaced at the bottom of the introduction groove 18, and 22 is a container. An outer edge wall 23 is formed on the outer periphery of the water pan partition plate 9 to have the same shape as the inner shape of the cylindrical portion of the main body 8, and 23 is an annular outer circumferential air passage defined by the vertical wall 20 and the outer edge wall 22; 26 is a pair of holes provided at symmetrical positions with respect to the center of the outer air passage 23;
A connecting air passage connecting the vertical wall 1 and the through hole 15.
A pair of standing walls 27, 27 by cutting out a part of 9, 20
A section is formed in a part of the introduction groove 18 by. In addition, the above-mentioned standing walls 19, 20 and the outer edge wall 2
The upper end surfaces of 2 are formed in substantially the same shape and are configured to be in close contact with the main body 1.

Reference numeral 28 denotes a main shaft inserted through the rotation bearing portion 13, and is formed to be slightly smaller than the inner diameter of the rotation bearing portion 13. Reference numeral 29 denotes a cutter having a pair of blade parts 30 fixed to the lower end of the main shaft 28 by screws. wing 31
has. 32 is a threaded portion formed at the upper end of the main shaft 28 and has a smaller diameter than the main shaft 28; 33 is this threaded portion 32;
A coupling body 34 made of hard rubber or the like and a metal insert 3
5.

37 is a pair of guide plates formed in the hot water pan partition plate 9 so as to protrude toward the inside of the container body 8 at positions corresponding to the pair of through holes 24 of the hot water pan partition plate 9;
A pair of locking recesses formed in the main body 1, 39 a pair of locking protrusions provided on the basin partition plate 9 corresponding to the pair of locking recesses 38, and 40 a pair of locking protrusions formed in the main body 1. A locking groove 41 is a pair of locking pieces provided in the container body 8 at positions corresponding to the locking grooves, 44 is a pair of notches cut out in the outer edge wall 22, and 45 is a position corresponding to the notch 44. A pair of notches formed in the container body 8 are configured to allow high-pressure water vapor in the hot water to escape to the outside of the coffee filtration container 7. 4
2 is a handle of the container body 8; 43 is a cup for storing extracted coffee liquid placed below the coffee filter container 7 and on top of the hot water generating device 3; 4;
Reference numeral 6 denotes a control unit that controls energization of the hot water generating device 3 and the drive motor 6.

The operation of the above configuration will be explained.

First, the cutter 29 is fixed to the lower end of the main shaft 28 with a screw, and the main shaft 28 is inserted into the rotation bearing part 13 from below, and the coupling ring 33 is screwed into the threaded part 32 protruding upward. Partition plate 9
It can be installed on.

Next, a paper filter 10 is set on the container body 8, and a filter holder 11 is attached from above. After that, add the desired amount of coffee beans and press the locking protrusion 3.
Attach the hot water pan partition plate 9 while aligning the parts 9 to the locking recesses 38. In this state, the filter holder 11 is pressed and held by the water pan partition plate 9 so as not to wobble.

Coffee filter container 7 prepared in this way
is attached to the main body 1, an amount of water corresponding to the coffee beans is poured into the water container 2, and then the drive motor 6 is rotated for a predetermined period of time to crush the coffee beans by the cutter 29. At this time, the guide plate 37
With the rotation of the cutter 2, the coffee beans thrown into the upper corner of the coffee filtration container 7 are repelled back to the cutter 29 side to prevent them from scattering through the through hole 24, thereby efficiently crushing the coffee beans.
The whirlwind caused by the rotation of the blades 31 of 9 is passed through the pair of through holes 2.
This effectively leads to step 4.

Next, the controller 46 energizes the hot water generating device 3 to uniformly pour hot water from the discharge port 5 through the drip hole 21 onto the coffee beans in the container body 8 to extract coffee liquid.

In the above process, when grinding coffee beans, note that as the cutter 29 rotates, the blades 31 generate a swirling airflow in the inner space of the container body 8, and this airflow causes the container body 8 to A circulating airflow is formed from the inner space of the container body 8 through the pair of ventilation holes 24 → outer circumferential air passage 23 → connection air passage 26 → ventilation hole 15 → inner space of the container body 8, and this airflow causes the coffee powder to become light. Ingredients, such as peel and fine coffee powder, are thrown up and deposited in the pools in the hot water pan partition plate 9 such as the above-mentioned outer circumferential air passage 23 and connection air passage 26, and are removed from the inside of the container body 8. ,
It brings out the original flavor of coffee.

Moreover, the paper filter 10 is a filter holder 1 made of wire mesh.
1, so that it will not be damaged by impact from coffee beans or the like caused by the rotation of the cutter 29.

Next, when cleaning up, since the dirt is only on the coffee filter container 7, carefully remove the coffee filter container 7 and separate it into the container body 8 and hot water pan partition plate 9, and then clean the inside of the container body 8. This is extremely simple, as all you need to do is throw away the coffee grounds and paper filter 10, and wash away the dirt on the container body 8 and the hot water pan partition plate 9 with the cutter 29 still attached with running water.

In this embodiment, the cutter 29 is rotatably supported by the cylindrical rotary bearing portion 13, but in short, the cutter 29 only needs to be rotatably supported by the water pan partition plate 9.

As explained above, according to this invention, there is a main body having a drive motor, a coffee filtration container which is detachably attached to the main body and which stores coffee beans and extracts coffee liquid from ground coffee powder. a partition member that is removably provided in the upper part of the coffee filtration container and has an air passage through which air in the coffee filtration container circulates; and a partition member that is removably connected to the drive motor and rotatably connected to the partition member. The main shaft is supported, and the cutter is fixed to the main shaft and has blades for crushing the coffee beans in the coffee filtration container and blades for generating swirling airflow in the space inside the coffee filtration container, so that the flavor of the coffee is improved. To provide a coffee maker with a grinder which can remove harmful components of coffee powder that inhibit coffee grinding, and which has a simple cutter attachment structure and is easy to clean, which has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a schematic configuration of an embodiment of this invention, FIG. 2 is a partially exploded perspective view of the coffee filter container, and FIG. 3 is a perspective view of the filter holder. In the figure, 1 is the main body of the coffee maker with a mill, 6 is the drive motor, 7 is the coffee filter container, and 9
29 is a cutter.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A main body having a drive motor, a coffee filtration container that is detachably attached to this main body and that stores coffee beans and extracts coffee liquid from ground coffee powder, and this coffee a partition member that is removably provided in the upper part of the filtration container and has an air passage through which air in the coffee filtration container circulates; and a partition member that is removably connected to the drive motor and rotatably supported by the partition member. A coffee maker with a grinder, comprising: a main shaft, and a cutter fixed to the main shaft and having blades for crushing coffee beans in the coffee filtration container and blades for generating swirling airflow in the space inside the coffee filtration container. (2) The coffee maker with a grinder according to claim 1, wherein the partition member has a cylindrical bearing portion approximately in the center. (3) The utility model according to claim 1 or 2, wherein the partition member has a circulating air path through which air in the coffee filter container flows in from the outer circumference and flows out from the inner circumference. Coffee maker with grinder.