JPH0317485B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention comprises a grinding case for grinding coffee beans and an extractor for extracting coffee liquid, and the coffee powder ground in the grinding case is provided with a grinding case for grinding coffee beans and an extractor for extracting coffee liquid. This invention relates to a coffee making machine that automatically introduces coffee into a brewer.

(Prior technology) This type of coffee making machine was developed in 1983.
A configuration shown in Publication No. 65626 has been proposed. Hereinafter, the configuration of this known example will be explained based on FIG. 3. That is, a crushing case c containing a crushing body b is provided at the upper left side of the main body a, and this crushing case c
An extractor d is provided diagonally below the right side. Reference numeral e denotes a communication path for communicating the inside of the crushing case c and the inside of the extractor d, and the communication path e is opened and closed by opening and closing an on-off valve f provided at the left end of the communication path e. g
is a lid that covers the upper part of the extractor d, h is a cylindrical air flow guide path provided at the bottom of this lid g, and the air flow ejected from the communication path e along with the coffee powder is directed to this air flow guide path h. and spirally into the extractor d. Reference character i denotes a hot water pan integrally formed on the inner wall of the air flow guide path h, and hot water discharged from the hot water supply port j is received by the hot water pan i and guided into the extractor d.

When extracting coffee liquid, after grinding coffee beans with the on-off valve f closed, a swirling air flow is generated in the grinding case c by opening the on-off valve f and rotating the grinding body b. At the same time, the coffee powder in the grinding case c is introduced into the extractor d through the communication path e and the air flow guide path h, and then hot water is supplied from the hot water supply port j to the coffee powder in the extractor d to produce coffee liquid. It is something to extract.

(Problems to be Solved by the Invention) However, in the above configuration, the path for introducing the coffee powder produced in the grinding case c into the extractor d is complicated and circuitous, so that coffee powder adheres to this part. Therefore, the amount of wasted coffee powder that is not collected into the extractor d increases, and the recovery rate of coffee powder becomes low, which is uneconomical. Furthermore, when cleaning the coffee liquid after extraction, the grinding case c, the communication passage e, and the lid g must be cleaned separately in addition to the extractor d, which is time-consuming and troublesome.

The present invention aims to solve these problems, and its purpose is to simplify the configuration of the path for introducing coffee powder into the extractor, and to increase the recovery rate of coffee powder. To provide a coffee making machine which can be easily cleaned and can be restarted immediately after brewing without any problem.

[Structure of the Invention] (Means for Solving the Problems) The coffee making machine of the present invention passes the coffee powder produced in the grinding case through a powder filter section provided on the side of the grinding case, and then passes the coffee powder produced in the grinding case through a powder filter section located below the grinding case. The extractor is configured to fall into a container and accommodate the coffee powder, and the extractor includes a hood portion extending above the extractor and guiding coffee powder from the powder filter portion into the extractor, and a hood portion of the top opening of the extractor. A hot water pouring hole for pouring hot water from the hot water generation mechanism into the extractor is formed in the hood portion or the lid portion, and a hot water pouring hole is formed around the hot water pouring hole. A surrounding wall-shaped water pan is formed surrounding the extractor, and the extractor is arranged such that a part of the upper opening thereof overlaps with the bottom surface of the crushing case below the powder filter part. be.

(Function) The coffee powder generated in the grinding case successively flies out from the powder filter and falls into the extractor. blocked by. This simplifies the introduction path for coffee powder from the grinding case to the extractor, and since the hood and lid that make up the introduction path are integrated, they are easy to attach and remove and clean. become. Furthermore, since the pouring hole is formed in the hood or lid, there is no need to wet the inside of the grinding case with hot water during extraction, and even if the grinding operation is performed again immediately after extraction, the coffee powder will not contain moisture. It will not stick to the inner peripheral wall of the crushing case. Furthermore, since a surrounding wall-like hot water pan is formed around the pouring hole, the hot water pan prevents the hot water that bounces around the periphery of the pouring hole from scattering to the outside, and prevents the surrounding area from getting wet with hot water. No need to worry. Furthermore, since the extractor is arranged so that a part of its upper opening overlaps the bottom of the grinding case below the powder filter, the coffee powder discharged from the powder filter gets in the way of other parts. The coffee powder falls into the extractor over the shortest distance without being crushed, and the coffee powder falls more easily, further reducing wastage of the coffee powder.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2. First, in Figure 1,
Reference numeral 1 denotes a main body of a coffee making machine, and a cartridge-type water storage container 2 is provided on the left side in the drawing, and a heating table 3 is provided on the lower right side. A well-known hot water generation mechanism consisting of a heating tube and a heater (not shown) is provided in the heating table 3, and the water in the water tanker 2 is supplied into the heating tube and turned into hot water.
4 is a bottle placed on the heating table 3, 5 is a bottle 4
This is a cup-shaped extractor placed above the body 1 by inserting a hook hole 6 (see Fig. 2) formed on the outer periphery of the upper end into a protrusion 7 formed in an upright shape on the body 1. It is removably attached to the. An extraction port 8 (see FIG. 1) is formed at the bottom of the extractor 5, and a valve device 9 for opening and closing the extraction port 8 is provided. This valve device 9
When the extractor 5 is attached to the main body 1, it comes into contact with the bottle lid 4a placed on the bottle 4 and is in an open state. Reference numeral 10 denotes a vertical shaft motor disposed on the main body 1 on the left side of the extractor 5 in the drawing;
A case mounting part 11 is formed in the upper part of the case. Reference numeral 12 denotes a crushing case that is detachably attached to the case mounting portion 11, and a crushing body 13 that is rotationally driven by the motor 10 is provided at the inner bottom of the crushing case. A large number of fine holes are formed on the right side of the crushing case 12 to form a powder filter section 14 (second
) is provided, and this powder filter section 1
4 faces the upper opening of the extractor 5. Reference numeral 15 denotes a hood section for guiding coffee powder from the powder filter section 14 into the extractor 5. One end of this hood surrounds the top and both sides of the powder filter section 14, and the other end surrounds the top surface of the extractor 5. It extends to the vicinity of the center of the opening, and is formed in a substantially arcuate shape that moves away from the crushing case 12 toward the bottom. The hood portion 15 is integrally formed with the crushing case 12, and has a cylindrical molten metal pan 16 integrally formed on its upper surface, and a plurality of pouring holes 17 in the inner region of the molten metal pan 16. It is formed. Reference numeral 18 denotes a lid portion that covers the outer portion of the hood portion 15 of the upper opening of the extractor 5, and is integrally formed with the hood portion 15. A cylindrical part 19 is integrally formed on the lower surface of this lid part 18 to be inserted into the inner circumference of the upper end of the extractor 5. It is designed to be held by being sandwiched between the parts 19 and 19. Note that 21 is a hot water supply spout which is rotatably provided above the hot water pan 16, and the hot water generated by the heating pipe of the hot water generation mechanism described above is discharged from this hot water spout body 21 into the hot water pan 16. Ru. 2
2 is a cap removably placed on the top of the crushing case. In this embodiment, the extractor 5 is arranged so that a portion of its upper opening overlaps the bottom surface of the crushing case 12 below the powder filter section 14.

Next, the operation of the above configuration will be explained. To extract coffee liquid, first, coffee beans and water are stored in the grinding case 12 and the water tanker 2, respectively, and set in the state shown in FIG. Then, when the motor 10 is energized, the coffee beans are ground by the grinding body 13. As a result, the generated coffee powder is ejected from the powder filter section 14 by centrifugal force when the particle size becomes smaller than the micropores of the powder filter section 14. The coffee powder that flies out falls onto the paper filter 20 in the extractor 5 while being guided by the arc-shaped hood part 15. In this case, the hood part 15, which functions to introduce the coffee powder produced in the grinding case 12 into the extractor 5, has an extremely simple structure and connects the grinding case 12 and the extractor 5 at substantially the shortest distance. Therefore, the amount of coffee powder that adheres to the hood portion 15 and is not collected into the extractor 5 is reduced, and the recovery rate of coffee powder is increased. Moreover,
Since the extractor 5 is arranged so that a part of its upper opening overlaps the bottom surface of the grinding case 12 below the powder filter section 14, the coffee powder discharged from the powder filter section 14 is not exposed to other members. The coffee powder is allowed to fall into the extractor 5 over the shortest distance without being disturbed, and the coffee powder falls more easily, reducing wastage of the coffee powder. In addition, since the outer part of the hood part 15 of the upper surface opening of the extractor 5 is covered with the lid part 18, the wind generated in the crushing case 12 due to the rotation of the crushing body 13 flows into the extractor 5. Even if the coffee is blown, the lid 18 prevents the coffee powder inside the extractor 5 from being blown out of the extractor 5 by this wind. After pulverizing all the coffee beans in this way, when the heater of the hot water generation mechanism is energized, the water in the water storage tanker 2 is sequentially heated and discharged from the hot water supply spout body 21 into the hot water receiver 16, and the hot water is poured. The coffee powder passes through the hole 17 into the hood 15 and is dripped onto the coffee powder on the paper filter 20. The dropped hot water permeates the coffee powder to extract coffee extract from the coffee powder, is filtered by a paper filter 20, and is dripped from the extractor 8 into the bottle 4 as coffee liquid and stored. When extracting coffee liquid, some of the hot water bounces around the periphery of the pouring hole 17, but since the hot water pan 16 in the form of a surrounding wall is formed around the pouring hole 17, the hot water does not bounce around the periphery of the pouring hole 17. The hot water receiving part 16 can prevent the hot water that has bounced back from scattering to the outside, and the surrounding area can be prevented from getting wet with hot water.

After extraction of the coffee liquid, the parts that need to be cleaned, that is, the parts to which coffee powder dregs adhere, are the grinding case 12, the hood part 15, the lid part 18, and the extractor 5. Of these, the hood part 15 and lid part 18 for guiding the coffee powder into the extractor 5 are integrally formed, so they can be removed and washed all at once. It is possible to easily and reliably remove coffee grounds adhering to the coffee grounds. In this way, the hood part 15
After cleaning the lid part 18 and the crushing case 12 integrally formed therewith, the extractor 5 is removed from the protrusion 7.
Just remove it and wash it with water to complete the cleaning.

By the way, if hot water were to be supplied into the extractor through the crushing case, the inside of the crushing case would get wet during extraction. If you grind the coffee in a wet state, the coffee powder will contain moisture and stick to the inner peripheral wall of the grinding case, making it difficult to discharge the coffee grounds smoothly. It is inconvenient that the upper crushing operation cannot be restarted, and therefore crushing and extraction must be repeated continuously.

In this regard, in this embodiment, the molten metal pouring hole 17 is formed in the hood part 15, and hot water is supplied from the hot water pouring hole 17 into the extractor 5, so that the inside of the crushing case 12 is not wetted with hot water during extraction. Therefore, there is no problem even if the crushing operation is performed again immediately after extraction.
It is convenient because the grinding and extraction can be repeated continuously.

Furthermore, when the pouring hole 17 is provided in the hood 15 as in this embodiment, the coffee powder adhering to the inner surface of the hood 15 is extracted by the hot water flowing down from the pouring hole 17 along the inner surface of the hood 15. The coffee powder can now be poured into the container 5, further reducing wastage of the coffee grounds.

In this embodiment, the hood part 15 is formed in a substantially arc shape that moves away from the crushing case 12 as it goes downward.
The coffee powder flying out from the powder filter section 14 is smoothly guided into the extractor 5 along the hood section 15,
The coffee powder received in the extractor 5 accumulates relatively uniformly without being biased to one side.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and for example, the extractor 5 may be configured to be detachably attached to the lower surface of the lid portion 18 by an engaging means.
Various modifications can be made without departing from the gist.

[Effects of the Invention] As is clear from the above description, the present invention can provide the following effects. That is, since the hood is the only member for introducing the coffee powder produced in the grinding case into the extractor, the configuration of the path for introducing the coffee powder into the extractor can be extremely simplified. The recovery rate of coffee powder into the extractor can be increased. Furthermore, since the lid portion covering the top surface of the extractor is integrally formed with the hood portion, the hood portion and the lid portion can be removed as a unit and washed with water all at once, making cleaning easier. In addition, there is no need to wet the inside of the crushing case with hot water during extraction, and there is no problem in starting the crushing operation again immediately after extraction, which is convenient. Furthermore, since a surrounding wall-like hot water pan is formed around the pouring hole, the hot water pan prevents the hot water that has bounced around the periphery of the pouring hole from scattering to the outside. No need to get it wet. On top of that,
Since the extractor is arranged so that a portion of its upper opening overlaps the bottom surface of the grinding case below the powder filter section, the coffee powder discharged from the powder filter section is not obstructed by other members. The coffee powder falls into the extractor over the shortest possible distance, and the coffee powder falls more easily, further reducing wastage of coffee powder.

[Brief explanation of the drawing]

FIGS. 1 and 2 show an embodiment of the present invention. FIG. 1 is a front view of the whole with main parts cut away, FIG. 2 is an exploded perspective view of the main parts, and FIG. FIG. 3 is an overall longitudinal sectional front view showing a conventional example. In the drawing, 5 is an extractor, 12 is a crushing case, 13
14 is a powder filter, 15 is a hood, 16 is a hot water pan, 17 is a pouring hole, and 18 is a lid.

Claims (1)

[Claims] 1 Coffee beans housed in a grinding case are ground by a grinding body to produce coffee powder, and this coffee powder is dropped and stored in an extractor located below through a powder filter section provided on the side of the grinding case. and a hood part that extends above the extractor and guides the coffee powder from the powder filter part into the extractor. a lid part that is integrally formed with the hood part and covers an outer part of the hood part of the top opening of the extractor; and a lid part that is formed in the hood part or the lid part and which extracts the hot water from the hot water generation mechanism. The extractor is provided with a pouring hole for pouring the hot water into the container, and a hot water receiving portion formed in the shape of a surrounding wall surrounding the pouring hole, and the extractor is arranged such that a part of the upper opening thereof is located below the powder filter portion. A coffee making machine characterized in that the coffee making machine is arranged so as to overlap the bottom surface of the grinding case.