JPS5814908Y2 - "Coffee" making machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coffee making machine that produces both coffee powder and coffee liquid within one case set in the machine body.

This type of coffee making machine has recently become available so that even ordinary households can produce delicious coffee liquid with simple operation, and its configuration is that coffee beans are stored in a machine body equipped with a motor. Set the case with the cutter in a removable manner,
Then, by energizing the motor and rotating the cutter, the coffee beans are crushed to an appropriate fineness to produce coffee powder,
After that, hot water is dripped into the case through a hot water supply pipe of a drip mechanism installed in the machine body, and the hot water permeates into the coffee powder, thereby producing coffee liquid.

Therefore, in order to crush coffee beans in this device, the configuration for transmitting the rotational driving force of the motor to the cutter has conventionally been such that a joint is attached to the upper end of the rotating shaft of the motor.
Furthermore, a similar joint is attached to the lower end of the drive shaft attached to the cutter, and the two joints are connected when the case is set in the machine body.

However, the conventional configuration described above not only requires a dedicated joint, but also requires a drive shaft and a bearing mechanism for the drive shaft separately in addition to the cutter inside the case.
For this reason, there was a problem in that the number of parts increased excessively, resulting in high costs.

In addition, due to the increase in the number of parts, when hot water is dripped into the case, the hot water is easily cooled down as the heat is taken away by the above-mentioned parts, and the temperature of the coffee liquid also decreases. There was a problem that the food tasted bad.

Furthermore, when the coffee beans are crushed, there is a problem in that the rotation of the cutter causes the coffee beans to collide with the side wall of the case, causing a loud crushing sound.

The present invention was developed in view of the above circumstances, and its purpose is to eliminate the need for special joints, drive shafts, bearing mechanisms, and other parts, making it much cheaper, and further reducing the temperature of hot water. To provide a coffee making machine capable of obtaining a delicious coffee liquid while preventing the noise of grinding coffee beans as much as possible.

An embodiment of the present invention will be described below with reference to the drawings.

First, in Fig. 1, 1 is the fuselage, the left and right sides of the lower half are used as the motor storage chamber 2 and the cup mounting part 3, and the left and right sides of the upper half are used as the case storage part 4 and the water storage tank 5. There is.

Further, a protrusion 6 is formed at a predetermined distance below the upper opening edge 4a of the case storage section 4, and a partition wall 7, which is the bottom wall of the case storage section 4, is gradually inclined downwardly toward the right. An extraction port 8 is formed at the bottom of the.

Reference numeral 9 denotes a motor disposed in the motor storage chamber 2, and its rotating shaft 10 extends through the open lower a of the partition wall 7 and projects into the case storage section 4. lower a
The gap between the two is sealed by a water seal 1] and a gasket 12.

Reference numeral 13 denotes a cup placed on the cup placement portion 3, which faces the oil mud extraction port 8.

Reference numeral 14 denotes a heating plate made of a thermally conductive material provided on the lower surface of the cup placement part 3, which includes a heating pipe 15 and a sheathed heater 1.
6 are buried in parallel, and one end of the heating pipe 15 is extended upward and connected to the water outlet (not shown) of the water storage tank 5 to form a water supply pipe 17, while the other end is also connected to the water outlet 1 in the upper part of the fuselage 1.
The hot water supply pipe 18 is extended to the point a.

Further, in FIG. 2, reference numeral 19 denotes a cylindrical case having a collar-like locking portion 20 at the upper part of the outer peripheral wall, and a filter 21 is attached to the lower end of the case.

By holding the case 19 by hand above the locking part 20 and storing it in the case storage part 4,
In addition to locking the locking portion 20 to the protruding portion 6 of the body 1, the rotating shaft 10 of the motor 9 is passed through the opening 22 of the filtration filter 21 and projected into the case 19, thereby closing the case. 19 is removably set at a fixed position on the fuselage 1.

In this fold, the case 1 forms a double cylinder shape with its own side wall and the case storage part 4, and is surrounded by the case storage part 4.

23 is a cutter for grinding coffee beans, and the boss part 24 of this is
It is directly attached to the protrusion of the rotary shaft 10 by engaging with a pin 25 provided on the protrusion of the rotary shaft 10 in a case 19 set in the body 1.

Reference numeral 26 denotes a lid that is detachably attached to the upper opening edge 4a of the case storage section 4, and has an integral inner lid 27 on the lower surface that covers the upper opening 4a of the case 19. A guide portion 28 is formed which gradually descends toward the center, and a hot water supply port 29 is formed in the center.

Next, to explain the action, when manufacturing coffee liquid,
When the water storage tank 5 is filled with water and the case 19 is filled with the required amount of coffee layer, firstly, when the motor 9 is energized, the cutter 23 directly attached to the rotating shaft 10 is driven to rotate, thereby removing the coffee layer. Grind to appropriate fineness.

Thereafter, the motor 9 is turned off, and the sheathed heater 16 is energized to generate heat, thereby heating and boiling the water supplied from the water storage tank 5 to the heating pipe 15 via the water supply pipe 17.

Then, the hot water flows through the hot water pipe 18 due to its boiling pressure.
The guide part 28 of the inner lid 27 is pushed up from the spout 1a.
The hot water is ejected toward the molten metal, and is dripped into the case 19 from the hot water supply port 29 along the guide portion 28 .

The supplied hot water permeates through the coffee powder, is filtered by the filtration filter 21, becomes coffee liquid, and is further converted to the partition wall 7.
It flows down through the extraction port 8 into the cup 13 and is stored there.

In this embodiment, as described above, the boss portion 24 of the cutter 23 is directly attached to the protruding portion of the rotating shaft 10 in the case 19, so that the rotational drive of the rotating shaft 10 of the motor 9 is possible. Force can be directly transmitted to the cutter 23 without going through other parts, and therefore, unlike conventional methods that require many other parts such as dedicated joints, drive shafts, and bearing mechanisms, these other parts are completely unnecessary. This is case 1
The number of parts in 9 can be reduced, making it much cheaper.

Furthermore, in this embodiment, the case 19 is surrounded by the case storage part 4, so that a so-called heat-retaining space is formed around the case 19 by the case storage part 4. There is almost no drop in the temperature of the hot water even when it is supplied dropwise, and therefore extremely hot water of about 90° C. can be permeated into the coffee powder, making it possible to obtain a delicious coffee liquid.

Such an effect of preventing a drop in the temperature of hot water can be achieved even better in combination with the reduction in the number of parts in the case 19 described above.

That is, unlike the conventional case, the hot water supplied into the case 19 does not come into contact with other parts such as the drive shaft and bearing mechanism, and therefore is not cooled by these parts.

In addition, in this embodiment, as mentioned above, since the case 19 is surrounded by the case storage part 4, the grinding noise generated when grinding the coffee layer does not leak outside, and the generation of noise is prevented as much as possible. can.

In addition, especially in this embodiment, the locking portion 2 of the case 19
0 to the protruding part 6 of the case storage part 4, and the case 19
is set in the machine body 1, so even when an external force is applied to the case 19 due to crushing resistance, etc., such as when crushing a coffee layer, the case 19 can be reliably prevented from tilting or shifting its position.

The present invention is not limited to the embodiments described above and shown in the drawings, but may be implemented with appropriate modifications within the scope of the invention.

As explained above, this invention generates coffee powder by crushing coffee beans in a single case set in the machine, and generates coffee liquid by infiltrating hot water into the coffee powder. The fuselage is provided with a case storage part that surrounds the case in a double cylindrical shape, and a rotating shaft of a motor included in the fuselage passes through the case storage part and the case, and the rotation The cutter for crushing coffee beans, which is rotationally driven by the motor, is directly attached to the protruding part of the shaft in the case, and thereby the cutter for crushing coffee beans, which is rotationally driven by the motor, is directly attached. It is possible to eliminate the need for parts such as shafts and bearing mechanisms, making it much cheaper.Furthermore, it is possible to more reliably prevent the temperature drop of hot water to obtain delicious coffee liquid, and it is also possible to prevent the need for grinding coffee beans as much as possible. We can provide a coffee making machine that is highly practical.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with Fig. 1 showing an overall longitudinal sectional side view, and Fig. 2 an enlarged longitudinal sectional side view of the main parts. In the drawing, 1 is the fuselage, 4 is the case storage part, 6 is the protrusion part, 7
is the partition wall, 9 is the motor, 10 is the rotating shaft, 19 is the case,
20 is a locking part, 21 is a filtration filter, 23 is a cutter, 2
4 indicates a boss portion.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A device that generates coffee powder by crushing coffee beans in a case set in the machine, and generates coffee liquid by infiltrating hot water into the coffee powder. The fuselage is provided with a case storage part that surrounds the case in a double cylindrical shape, and a rotating shaft of a motor included in the fuselage passes through the case storage part and the case, and the rotation A coffee making machine characterized in that the cutter for crushing coffee beans, which is rotationally driven by the motor, is directly attached to a protruding portion of the shaft in the case. 2. The coffee making machine according to claim 1, wherein the case has a locking part that locks into the case storage part when the case is set.