JPH0328207B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a coffee making machine which is equipped with a mill mechanism and which produces coffee liquid by supplying hot water from a hot water supply mechanism to ground coffee powder.

[Technical background of the invention]

Conventionally, there are two types of coffee making machines of this type.One type has a motor storage chamber with a mill mechanism motor installed on both the left and right sides of the lower half of the main body, and a bottle mounting stand. A case storage chamber is formed above the storage chamber, and when extracting coffee liquid, a case for both a mill and coffee extraction is stored in the case storage chamber, and the coffee beans introduced into the case are first placed on the rotating shaft of the motor. The coffee liquid is extracted by grinding the coffee using an attached cutter and then supplying hot water from the hot water supply mechanism. A storage chamber and a bottle mounting table are formed, and a mill case is removably placed above the motor storage chamber, and the coffee beans put into the case are crushed by a cutter driven by a motor. The mill case is removed and the coffee powder is transferred into the extractor placed on the bottle on the bottle holder, and hot water from the hot water supply mechanism is supplied to the coffee powder stored in the extractor to extract coffee liquid. It is of composition.

[Problems with background technology]

However, in each of the above configurations, the bottle mounting stand and the relatively large motor storage chamber are arranged side by side in the main body, so the overall size is relatively large and the installation area of the main body is large. It had the disadvantage of becoming.

[Purpose of the invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a space-saving coffee making machine that can be downsized to reduce the installation area of the main body, and can be used even on a narrow table without getting in the way.

[Summary of the invention]

In the present invention, a motor is disposed in a mill case provided at the upper part of the main body so as to form a mill space between the mill case and a cutter driven by the motor is disposed within the mill space. The extractor and the bottle for storing coffee liquid are stacked one above the other below the mill case, and the motor is stored side by side with the bottles so that the interior of the mill case is used as a motor storage chamber. The feature is that it eliminates the need for a separate room.

[Embodiments of the invention]

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. First, in FIG. 1, 1 is the main body of a coffee making machine made of plastic, and this main body 1 has a generally inverted U-shape as a whole.
A bottle mounting table 2 serving as a base part is formed at the bottom, a vertically long and thin water storage tank 3 is provided at the left side, and a flat support section 4 is formed at the top facing the bottle mounting table 2. There is. Reference numeral 5 denotes a hot water supply mechanism constructed by embedding a sheathed heater 7 and a heating tube 8 in parallel in a heating plate 6, and the heating plate 6 is arranged closely to the lower surface of the heat transfer plate 2a mounted on the bottle mounting table 2. It is set up. Then, one end of the heating pipe 8 is extended upward and connected to a water outlet (not shown) of the water storage tank 3 via a check valve 9, and the other end is extended above the one end to form a hot water supply pipe 10. A hot water supply arm 11 is connected to the upper end of this so as to point horizontally to the right. The main body 1 is reinforced by an inverted U-shaped reinforcing frame 12 made of metal, for example, extending from the bottle mounting table 2 at the bottom to the support section 4 at the top. As shown in FIG. 2, this reinforcing frame 12 includes a bottom plate 12a made of a metal plate and having a substantially oval shape.
The main frame 12c is made of a metal plate and has a top plate part 12b having a semicircular shape on the upper end, which is erected slightly to the left of the main frame 12c. is bent at a right angle to form a flange 12d, thereby reinforcing the frame main body 12c itself. Reference numeral 13 denotes a disc-shaped lid that is screwed together with the motor case 14 suspended from the lower surface of the top plate portion 12b of the reinforcing frame 12, and the center portion of the lid 13 has a substantially central portion of the top plate portion 12b. A hole 13a is formed concentrically and with the same diameter as the hole 12e drilled in the hole 12e, and a cylindrical elastic member storage portion 13b is provided around the hole 13a to protrude downward. on the other hand,
The motor case 14 has a cylindrical container shape with a tapered bottom, and a hole 14a for inserting the motor shaft is formed in the center of the lower end, that is, the tapered bottom, and a hole 14a is formed around the hole 14a. A cylindrical elastic member storage portion 14b is provided to protrude upward. Reference numeral 15 denotes a motor disposed within the motor case 14, and this motor 15 has an elastic member 1 for vibration isolation stored in both elastic member storage portions 13b and 14b within the motor case 14.
6 and 17, and a rotating shaft 15a projects downward from 14a of the motor case 14. A cutter 18 is screwed onto the lower end of this rotating shaft 15a. In addition, 19 is the rotation axis 1
This is a sealing member fitted into the gap between the hole 5a and the hole 14a. Reference numeral 20 denotes a mill case having a substantially cup shape. As shown in FIG. A protrusion 21 is provided protrudingly. On the other hand, the support portion 4 of the main body 1
The inner circumferential surface of the cylindrical mill case support part 22, into which the small diameter part 20a of the mill case 20 is fitted, has an upper part from the lower end so as to correspond to each protrusion 21 at the upper end of the mill case 20. A groove 23 extending therein and a square hole 24 continuously extending laterally from the upper end of the groove 23 are formed. When the mill case 20 is rotated by inserting the small diameter portion 20a into the mill case supporting portion 22 from below, the protrusion 21 fits into the square hole 24 through the groove 23 and engages therewith. By fitting together, it is removably attached to the support portion 4 of the main body 1. In this installed state of the mill case 20, the motor case 14 and the motor 1
5 is housed in the mill case 20, and a mill space A is formed at the bottom and surrounding area between the motor case 14 and the mill case 20.
The cutter 18 is located within this mill space A. 25 is a plurality of supply ports formed radially at the bottom of the mill case 20; 26 is an opening/closing mechanism provided at the outer bottom of the mill case 20 to open and close the supply port 25; It is composed of a rotating plate 27 and a substantially cylindrical cover 28 that accommodates the rotating plate 27, and the cover 28 is fitted to the lower end of the mill case 20. The rotating plate 27 is formed to have approximately the same shape as the bottom of the mill case 20 having the supply port 25, and has a through hole 27a having the same shape as the supply port 25.
7 is rotatably supported via a shaft 29 fixed through the center of the bottom of the mill case 20, and when it is rotated by a predetermined pitch, the through hole 27a is connected to the supply port 25 depending on the direction of rotation. The openings 27a are set either in the matched open state or in the closed state in which the through hole 27a does not face the supply port 25 at all. A lever 2 for rotation operation is provided on the outer periphery of this rotation plate 27.
7b is provided in a protruding manner, and a knob 30 is attached to the tip thereof. The cover 28 also has a large diameter portion 28 in the lower half.
a notch 28b that opens downward is formed in
It has been introduced inside. 31 is a bottle placed on the bottle mounting table 2; 32 is a filter container serving as an extractor placed on the top opening of the bottle 31; inside thereof, a filter receiving portion 32a having a substantially funnel shape is formed; A large number of ribs 32b are formed on the inner circumferential surface of the filter receiving part 32a, and a coffee extraction port 32c is formed at the lowest part, and a paper filter 33 is removably placed on the ribs 32b. In addition, 34
is a safety switch provided on the left side inside the support part 4 of the main body 1, and this safety switch 34 is connected to the motor 15.
The operator 34a, which is connected in series with a manual operation switch (not shown) in the energizing path of the mill, and is made of a leaf spring as shown in FIG. 3, is inserted into the square hole 24 of the mill case support 22. Mill case 20
When the operator is set correctly, the operator 34a is pressed and displaced by the protrusion 21 that engages in the square hole 24, thereby turning on the operator.
Further, the operation switch is provided so as to be switchable between a mill operation in which the motor 15 is energized and a hot water supply in which the sheathed heater 7 of the hot water supply mechanism 5 is energized.

Next, the operation of the above configuration will be explained. When producing coffee liquid, first, after removing the bottle 31 together with the filter container 32 from the bottle mounting stand 2,
The mill case 20 is removed from the support part 4, the supply port 25 at the bottom is closed by the rotary plate 27 by rotating the lever 27b, and coffee beans are put into the mill switch 20. After that, the mill case 20 is placed over the outside of the motor 15 from below, and the notch 28a of the cover 28 is inserted into the hot water supply arm 1.
1, the protrusion 21 is inserted into the groove 23 of the mill case support part 22, and the mill case 20 is further rotated to engage the protrusion 21 with the square hole 24. Then, it is attached to the mill case support part 22. At this time, the operator 34a of the safety switch 34 is simultaneously pressed by the protrusion 21 of the mill case 20, and the safety switch 34 is turned on.
Further, the hot water supply arm 11 is inserted into the large-diameter portion 28a through the notch 28b of the large-diameter portion 28a of the cover 28. After placing the paper filter 33 in the filter receiving portion 32a of the filter container 32, the bottle 31 and the filter container 32 are placed on the heat transfer plate 2a of the bottle mounting table 2. On the other hand, a predetermined amount of water is stored in the water storage tank 3 from a water supply port (not shown). Then, when the operating switch is set for mill operation, the motor 15 is energized and the cutter 18 rotates to grind the coffee beans in the mill case 20. During this grinding, the coffee beans or ground coffee powder tend to be pushed upward to the outer periphery by the rotation of the cutter 18, so that the coffee beans or ground coffee take on an inverted parabolic shape at the bottom of the mill case 20. Therefore, the motor case 1 is distributed within the mill case 20.
Even if the motor 4 (motor 15) is in the retracted state, there is no risk that this will have an adverse effect on the grinding of coffee beans. After grinding the coffee beans in this way, operate the operation switch to turn the motor 15.
Turn off the power. After that, the lever 27b is operated to rotate the rotary plate 27 to open the supply port 25 at the bottom of the mill case 20, and the coffee powder is supplied from the supply port 25 into the filter receiving part 32a of the filter container 32. let it fall. Then, the operation switch is switched to hot water supply, and the sheathed heater 7 of the water supply mechanism 5 is energized to generate heat, thereby preheating the bottle 31 and at the same time heating the water supplied from the water storage tank 3 to the heating pipe 8. Produces hot water. Then, this hot water rises up the hot water pipe 10 due to boiling pressure and reaches the hot water supply arm 11.
The coffee powder is dripped onto the coffee powder in the filter receiving part 32a. The dropped hot water passes through the coffee powder and paper filter 34 and is extracted as coffee liquid, flows out from the extraction port 32c, and is stored in the bottle 31. After extracting the coffee liquid in this way, the bottle 31 together with the filter container 32 is removed from the bottle mounting stand 2, the filter container 32 is taken out from the bottle 31, and the coffee liquid in the bottle 31 is poured into coffee cups for drinking. Further, the wet coffee powder in the filter container 32 after extraction can be easily cleaned by discarding the paper filter 33 together.

Thus, according to the above configuration, the motor case 1
4 (motor 15) is provided on the upper part of the main body 1, and the mill case 20 is detachably attached so that the motor case 14 is housed therein and a mill space A is formed between the motor case 14 and the motor case 14. Since it is configured to be mounted, there is no need for a separate motor storage chamber that was conventionally formed next to the bottle mounting table, and the bottle 31 can be mounted on the bottle mounting table 2 together with the filter container 32 below the mill case 20. Since the main body 1 can be placed in a so-called "vertical" configuration, it can be made compact, and the installation area of the main body 1 can be reduced, resulting in space saving. Moreover, motor case 1
Since the motor 4 (motor 15) is housed in the mill case 20, the overall height in the vertical direction can be reduced compared to a structure in which the motor and the mill case are arranged in two stages, one above the other. Although the bottle 31 and the filter container 32 are arranged vertically under the case 20, the size can be reduced in the height direction as well.

Further, if the supply port 25 and the opening/closing mechanism 26 for opening and closing the supply port 25 are provided at the bottom of the mill case 20 as in this embodiment, the mill case 20 can be removed without removing the supply port 25 and the opening/closing mechanism 26 for opening and closing it.
Since the coffee powder in the mill case 20 can be stored in the filter container 32 simply by operating the opening/closing mechanism 26 and hence the lever 27b, it is extremely easy to transfer the coffee powder. In addition, the motor 15 is mounted in a mill case 20 that is located above the filter container 32 that receives hot water and is free from the risk of moisture intrusion, with the rotating shaft 15a protruding downward. Since the cutter 18 is attached to the lower end, there is almost no need to consider waterproofing, and there is also a seal member 19 to prevent coffee powder from entering.
Since it is hardly buried in the coffee powder, it is possible to use a simple and inexpensive structure, and it is possible to reduce the cost and also achieve long life and high reliability. Furthermore, the main body 1 extends from the bottle mounting table 2 at the bottom to the support section 4 at the top,
Since it is reinforced by the reinforcing frame 12,
Even if a relatively heavy motor 15 and mill case 20 are attached to the support portion 4, the plastic main body 1 will not be deformed due to the weight of these components due to long-term use.

In the above embodiment, the reinforcing frame 12 is made of a metal plate, but the invention is not limited to this. For example, as shown in FIG. The frame main body 37 may be formed by bending a metal rod. That is, the frame main body 37 is replaced with the reinforcing frame 1 of the above embodiment except for the metal round bar at its base.
In this case, the bottom plate is fixed by bolts 38a and nuts 38b so that the lower end (base) of the frame main body 37 is sandwiched between the bottom plate 36 and the holding plate 38. 36 and fasten it to the upper part of the frame main body 37 with screws (not shown) so that the upper part is sandwiched between the separate lid mounting board 39 and the lid 13,
The lid 13 is then attached to the frame main body 37 together with the motor case 14.

FIG. 5 shows a second embodiment of the present invention, in which the same parts as in the first embodiment are given the same reference numerals, and only the different parts will be explained. The mill case 40 has a peripheral wall near the bottom inwardly tapered to form a tapered part 41 whose diameter gradually decreases from the bottom to the area surrounding the cutter 18 above. Large diameter portion 28a of the cover 28 of the first embodiment
A peripheral wall portion 42 having the same shape as the above is integrally provided and protrudes downward. As in the first embodiment, the mill case 40 is detachably attached to the support part 4 by engaging the protrusion 21 with the square hole 24, and the motor case 14
A mill space B is provided between the two. Reference numeral 43 denotes a mesh-like filter attached to the bottom of the mill case 40, and a ring-shaped tightening member 45 is screwed onto a female thread 44 formed on the inner circumference of the bottom of the mill case 40. Therefore, it is attached removably in a clamped state.

Next, the operation of the second embodiment with the above configuration will be described. After coffee powder ground in the mill case 40 is stored in the filter container 32, hot water is supplied from the hot water supply arm 11 to the filter container 32. The process of extracting the coffee liquid is the same as that of the first embodiment, so the explanation will be omitted. Describe the process of doing so. Now, when the motor 15 is energized, the cutter 18 rotates and begins to grind the coffee beans. The ground coffee powder is pushed in the centrifugal direction by the rotation of the cutter 18, hits the inner circumferential surface of the tapered portion 41 whose diameter expands downward, and is pushed downward by the guiding action of the inner circumferential surface. Therefore, the coffee powder is successively pressed against the filter 43, and the coffee powder that has been ground to a predetermined particle size sequentially passes through the filter 43 and falls into the filter container 32. In this way, the coffee beans are ground in order from the bottom, and the ground coffee powder passes through the filter 43 and falls into the filter container 32 one after another, until all the coffee powder is removed from the filter container 3.
When the water reaches 2, start supplying hot water.
In the second embodiment configured in this way, the coffee powder that has been ground to a predetermined particle size is passed through the filter 43
Since the coffee grounds naturally fall through the filter container 32 into the filter container 32, there is no need for any special operation to transfer the coffee grounds from the mill case 40 into the filter container 32.

In addition, in this embodiment, the filter 43 is detachably attached to the bottom of the mill case 40 via the clamping member 45, so that when it is desired to extract coffee liquid using coffee grounds of different particle sizes, the filter 43 can be attached or removed as desired. It can be replaced with a filter that matches the grain size, allowing you to adjust the taste and concentration.

In each of the above embodiments, the motor 15 is disposed inside the motor case, but if the motor 15 itself is configured to be dust-proof, it becomes unnecessary in the motor case 14.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with various modifications without departing from the spirit.

〔Effect of the invention〕

In the present invention, a motor is provided in the upper part of the main body in a suspended state, and a mill case is detachably attached to the main body so that the motor is housed inside the case, and the mill case is installed in the mill space. A cutter driven by a motor is installed, and the extractor and coffee liquid storage bottle are stacked one on top of the other below the mill case, so they can be placed side by side on the bottle stand. It does not require a separate motor storage chamber, and it can be configured in a so-called vertical configuration in which the bottle is placed with the extractor below the mill case, making it possible to downsize and save space by reducing the installation area of the main unit. It can be used even on narrow tables without getting in the way.
Moreover, the motor is housed inside the mill case, and the space that would otherwise be wasted for grinding coffee beans in the mill case can be used as the space for arranging the motor. It is possible to provide a coffee making machine that has the excellent effect of being able to lower the overall height compared to a case where the coffee making machine is arranged in two stages, upper and lower.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an overall longitudinal sectional side view, FIG. 2 is a perspective view of the reinforcing frame, and FIG. 3 is an exploded perspective view of main parts. , FIG. 4 is a perspective view showing another embodiment of the reinforcing frame, and FIG. 5 is a longitudinal sectional side view of the main part showing a second embodiment of the present invention. In the figure, 1 is the main body, 2 is a bottle mounting table, 4 is a support part, 5 is a hot water supply mechanism, 12 is a reinforcing frame, 14 is a motor case, 15 is a motor, 18 is a cutter,
20 is a mill case, 25 is a supply port, 26 is an opening/closing mechanism, 27 is a rotating plate, 31 is a bottle, 32 is a filter container (extractor), 33 is a paper filter, 35 is a reinforcing frame, 40 is a mill case , 41 is a tapered portion, 43 is a filter, and A and B are mill spaces.

Claims (1)

[Claims] 1. A mill space is formed between a motor that is suspended from the upper part of the main body and a motor that is removably provided to house the motor in the upper part of the main body. a mill case; a cutter provided in the mill space and driven by the motor to crush coffee beans; and a cutter provided on a bottle for storing coffee liquid and installed together with the bottle below the mill case. A coffee making machine comprising: an extractor for storing coffee powder from a mill case; and a hot water supply mechanism provided in the main body for supplying hot water into the extractor. 2. The coffee making machine according to claim 1, wherein the bottom of the mill case is provided with a supply port for dropping coffee powder into the extractor and an opening/closing mechanism for opening and closing the supply port. 3. The coffee making machine according to claim 1, wherein the bottom of the mill case is provided with a filter that allows coffee powder ground to a predetermined particle size or less to pass through and fall into the extractor. 4. The coffee making machine according to claim 3, wherein the inner circumferential surface of the mill case is formed in a tapered shape that gradually decreases in diameter from the bottom to the cutter surrounding area above the bottom. 5. The coffee making machine according to claim 3 or 4, wherein the filter is removable from the mill case. 6. The main body is reinforced by a reinforcing frame from the lower base part to the upper motor and mill case supporting part, as claimed in any one of claims 1 to 5. coffee making machine.