JPH0728827B2 - Coffee maker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a coffee maker, and more particularly to a coffee maker capable of fully automatically obtaining coffee from green coffee beans.

<Prior Art and Its Problems> As a coffee maker of this type, a coffee maker that uses roasted coffee beans to perform grinding and extraction of a coffee liquid has been conventionally proposed. However, in such a conventional coffee maker, it is usually necessary to purchase roasted coffee beans in advance, and further, if the roasted beans are not used for a week, the taste and aroma of the coffee will deteriorate. ,
There is a problem for the user that he / she cannot easily drink a coffee having a good taste or aroma when he / she wants to drink coffee.

Further, Japanese Utility Model Publication No. 59-169687 discloses an apparatus for roasting coffee liquid from green beans, cooling, crushing and extracting, but roasting means, cooling means, crushing means, extraction The means are configured independently of each other, and the transporting means such as a chain unit is interposed between them, and it is unavoidable that the device as a whole is quite large, and it is far from a compact device. It was

Japanese Patent Laid-Open No. 1-190318 also provides a device having roasting means for roasting green coffee beans, cooling means, crushing means, and extracting means, which is a roasting container. A device similar to a conventional device that performs extraction from crushing is used as a roasting container to cool the beans after roasting in the same roasting container. Since the roasted beans are cooled in the roasting container, there is a problem that the cooling efficiency is poor and it takes time to cool to room temperature. Further, since the roasting container is also used for cooling the roasted beans, a crushing container and an extraction container are separately required, and there is a problem that the device cannot be made sufficiently compact.

Therefore, the present invention solves the above-mentioned drawbacks of the conventional coffee maker, and can automatically obtain the coffee liquid from the green coffee beans in a short time, and the coffee maker can be sufficiently compact. For the purpose of provision.

<Means for Solving the Problems> A coffee maker of the present invention that achieves the above object, includes a roasting means for roasting green coffee beans, a cooling means for cooling the coffee beans roasted by the roasting means, Roasting green beans at a predetermined timing, having at least a grinding means for grinding coffee beans cooled by the cooling means, and an extraction means for extracting coffee liquid from the coffee beans ground by the grinding means. A coffee maker for cooling, crushing, crushing, and extracting coffee liquid, which is a container for performing the three functions of cooling, crushing, and extracting the roasted coffee beans. As a filter 34 and crushing blade
The first feature is that the combined extractor 30 is provided with a roasted bean receiving port, a cooling blast receiving port and a hot water receiving port for extraction.

The coffee maker according to the present invention has, in addition to the above-mentioned first feature, an extraction coffee liquid outlet pipe provided in the dual-purpose extractor 30.
The second characteristic is that the air blower 40 is blown up from the bottom of the combined extractor 30 through the filtration filter 34 by connecting a cooling air blow inlet to 37.

In addition to the first or second characteristic, the coffee maker of the present invention has, in addition to the above-mentioned first or second characteristic, a stirring blade 23 made of an elastic spring body that rotates along the inner bottom surface of the roaster 20 as a roasting means.
The third feature is the provision of.

Further, in the coffee maker of the present invention, in addition to the above-mentioned third feature, the rotation of the stirring blade 23 of the roaster 20 is controlled by the shaft 27 on the drive source 26 side.
The rotation of the spring body 27a fixed to the shaft 24 on the side of the stirring blade 23 separated from the shaft 27 on the side of the drive source 26 is pushed to rotate the spring body 24a. Is the fourth characteristic.

The coffee maker according to the present invention has, in addition to any one of the first to fourth features, a ring-shaped far-infrared heater 22 provided in an upper portion of a roaster 20 which is a roasting means.
The fifth feature is that a shielding member 25 is provided to alleviate radiant heat to the lower part of the center of the ring.

In addition to any one of the first to fifth features, the coffee maker of the present invention has a conical shape at a position below the hot water pouring port 52 at the center of the hot water receiving port in the upper part of the dual-purpose extractor 30. Guide 33
The sixth feature is the provision of.

<Operation> According to the first feature of the present invention, the coffee beans roasted by the roasting means are received in the combined use extractor 30 and cooled in the combined use extractor 30 by blowing air for cooling. Then, the crushing blade portion 35 pulverizes the combined use extractor 30, and the coffee liquid can be extracted by pouring the combined use extractor 30. Therefore, all the processes other than roasting can also be performed. Therefore, the device can be made very compact. Also, by cooling the roasted beans in the combined extractor 30 separate from the roasting means, cooling can be performed more effectively than in the case of cooling in the roasting device, so cooling to room temperature It can be done quickly, and steam, moisture and water can be removed smoothly. Therefore, the aroma of coffee is maintained well and the crushing is performed uniformly, so that the coffee liquid with good taste can be extracted.

According to the second feature, the coffee liquid outlet pipe 37 is utilized by connecting the cooling air blowing inlet to the extracted coffee liquid outlet pipe 37 provided in the dual-purpose extractor 30. The air from the blower can be blown into the combined extractor 30, and there is no need to separately provide a blower passage from the blower, a blow-in port for blowing air to the combined extraction port, and the like, and the configuration can be simplified. Further, since the air is blown into the dual-purpose extractor 30 through the coffee liquid outlet pipe 37 and blown up from below through the filter filter 34, the beans can be cooled effectively.

Further, according to the third feature, since the stirring blade 23 is made of an elastic spring body, the stirring blade 23 is suitable even if beans are sandwiched between the stirring blade 23 and the inner bottom surface of the roaster 20. Bends in and comes off easily.

According to the fourth feature, the shaft 24 on the side of the stirring blade 23 and the shaft 27 on the side of the driving source 26 are separated from each other, so that the roW transmitted to the side of the driving source 26 through the shaft 24 on the side of the stirring blade 23 is separated. The heat on the side of the roaster 20 is shut off. Similarly, since the spring body 24a is configured to push the spring body 24a, it is possible to rotate with a margin by utilizing the restoring force of the spring body.

Further, according to the fifth feature, in the central portion of the roaster 20 below the central portion of the ring of the far-infrared heater 22, the beans gathered at that portion are roasted excessively as compared to the beans around other portions. Although there is a tendency, by providing the shielding member 25, the above tendency is eliminated, and the beans in the central portion and the periphery are uniformly roasted.

Further, according to the sixth feature, since the conical guide 33 is provided below the hot water pouring port 52 at the center of the hot water receiving port in the upper part of the dual-purpose extractor 30, the pouring was performed. The hot water is smoothly introduced into the dual-purpose extractor 30 along the conical guide 33 without bouncing. In addition, the guide 33 prevents the beans from jumping out of the dual-purpose extractor 30 during crushing.

<Embodiment> FIG. 1 is a vertical sectional view of a coffee maker showing an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line AA of FIG.
FIG. 4 is an overall perspective view.

A roaster 20 as a roasting means is provided in the upper part of the outer case 10, and a dual-purpose extractor 30 as a dual-purpose container for cooling, crushing and extracting the roasted beans is provided below the roasting device 20. An air blower 40 for sending air into the extractor 30 is provided, and a pouring machine 50 for pouring high temperature water into the extractor 30 is also provided. And a coffee server that receives the extracted and filtered coffee liquid
60 is placed. 70 is an operation panel. Further, a smoke eliminating deodorizer 80 is provided on the ceiling of the outer case 10.

The roasting device 20 as the roasting means is a device for roasting green coffee beans therein, and a ring-shaped far-infrared heater 22 is arranged at the upper part of the inner space of a circular container 21, and along the inner bottom surface. It has a stirring blade 23 that rotates by rotating. The stirring blade 23 is composed of a coiled rod as a spring body having elasticity. Further, the shaft 24 to which the agitating blade 23 is attached has a shape standing upright from the bottom portion at an appropriate height, and a shielding member 25 spreading like a shade is provided at the upper end portion thereof. Shaft on the side of the stirring blade 23
24 is separated from a shaft 27 on the side of the drive source 26 composed of a motor and a decelerator, and a spring body 24 fixed to each shaft 24, 27.
It is configured to engage with each other by a and 27a. An opening / closing lid 21a is provided on the ceiling of the container 21, and a bean discharging door is provided in a part from the bottom to the lower end of the container 21.
21b is provided. The opening / closing lid 21a is a lid for dropping beans into the container 21, and is connected to the opening / closing lid 11 provided on the ceiling of the exterior case 10 by a shaft 29, and the opening / closing lid 11 is rotated by a finger hole 11a. The opening / closing lid 21a of the container 21 is also opened. Further, the door 21b for discharging the beans is the advancing / retreating rod 2 of the solenoid 28.
It is fixed to 8a, and the door 21b is opened by retracting the advancing / retreating rod 28a.

The dual-purpose extractor 30 is a device for cooling the beans roasted by the roaster 20 therein, crushing them, and extracting and filtering coffee liquid from the crushed beans. The main body 31 of the dual-purpose extractor 30 is a cylindrical bottomed container and is provided below the dropping port of the beans from the roaster 20. The upper opening of the main body 31 is configured as a reception port 38 for the roasted beans, and also as a reception port 38 for the hot water for extraction, and a mortar shape in which an inward flange 32 extends obliquely downward from the peripheral edge. A conical guide 33 is provided below the pouring port 52 of the pouring device 50 facing the center of the upper opening of the main body 31. Also, the bottom of the body 31 is 2
It has a heavy bottom and a removable filtration filter 34 on the inner bottom.
Is provided. In this embodiment, a stainless mesh plate is used as the filter 34. Reference numeral 35 denotes a crushing blade portion, which is detachably attached to the shaft 36a of the drive source 36 and rotates. A double bottom main bottom 31a of the main body 31 is inclined in one direction, and a coffee liquid outlet pipe 37 is integrally formed in the extension direction of the inclination. The outlet pipe 37 is provided with a liquid drop port 37a to the coffee server 60. In addition, the outlet pipe 37
The tip of the blower is also used as a blower inlet 37b from the blower 40, and is configured to be detachably fitted to the blower 40.

Cooling means is constituted by the combined extractor 30 including the blower 40 and the outlet pipe 37. A combined-use extractor including the crushing blade portion 35
The crushing means is constituted by 30 and the driving source 36. Further, the dual-use extractor 30 including the filter 34, the pouring device 50 and the like constitute an extracting means.

The pouring machine 50 is a cartridge type water tank shown in FIG.
51 and a conduit 53 for carrying water from the water tank 51 to the pouring port 52,
And an instantaneous heat exchange section 54 provided in the middle of the pipe line 53. In the embodiment, the heat exchange unit 54 is the coffee server 60.
It is arranged on the back surface side of the mounting table 13 on which is mounted, that is, on the lower surface side, and is composed of a heater 54a and a heat exchange coil 54b.

The operation panel 70 is an operation panel of a control unit (not shown),
71 is an operation switch, 72 is a roasting time timer, and 73 is a mill time timer. Further, 74 is an automatic button, and 75 is an operation lamp. The roasting time timer 72 is a timer for setting an optimum roasting time according to beans for the number of people. The mill time timer 73 is also a timer for setting the crushing time according to the beans for the number of people. In addition, the automatic button 74 can automatically set the optimum roasting time and crushing time for obtaining the coffee for the number by pressing the button of the number drawn on the automatic button 74.

If only the roasting time timer 72 is set, only raw beans can be roasted. If only the mill time timer 73 is set, it is possible to work from roasted beans.
If the water tank 51 is not filled with water, the heater 54
Since a does not turn on, it can be used only for crushing beans.

Of course, the coffee server 60 can be taken out freely, but the combined use extractor 30 can also be taken out from the outer case 10 in a detachable manner with respect to the blower 40.

Next, the operation will be described. For example, when obtaining coffee for three persons, for example, 30 g of green beans for three persons are put into the roasting machine 20 by opening the opening / closing lid 11, and a predetermined amount of water is put in the water tank 51 and set. Then, when the operation switch 71 is pushed after setting the two timers 72 and 73 or pushing the automatic button 74, the fully automatic operation of the present apparatus is started. First, the far infrared heater 22 of the roaster 20 is turned on, and the drive source 26 is turned on. The green beans thus added are roasted by the heater 22 while being stirred by the stirring blade 23. Shaft 24 on the side of stirring blade 23
Since the shaft 27 on the side of the drive source 26 is separated, the roaster 20
The heat on the side can be prevented from being transmitted to the drive source 26. Rotation on the drive source 26 side is caused by engagement of the two spring bodies 27a and 24a with stirring blades.
Since it is transmitted to 23, rotation can be done smoothly. Since the stirring blade 23 is a coil-shaped rod as a spring body having elasticity, the beans are stirred by the stirring blade 23 when stirring the beans.
The stirring blade 23
With such elasticity, it is possible to easily eliminate such a state and maintain a good stirring state. Further, since the moving speed of the beans by the stirring blade 23 is slow in the center of the container, the beans gathering in the center tend to be roasted more excessively than the beans in other surroundings, but the shielding member 25 is used. By providing, the roasting in the central portion is appropriately alleviated, and the whole is roasted uniformly.

After roasting for a predetermined time, for example 8 minutes, the solenoid
The door 21b is opened for a certain time by 28, and the roasted beans are dropped by the stirring blade 23 into the main body 31 of the combined extractor 30. At the same time, the blower 40 is activated to blow air into the main body 31 for several minutes, for example, to cool the beans. The air from the blower 40 is blown up from the bottom of the dual-purpose extractor 30 through the outlet pipe 37 and the filtration filter 34 to cool the beans. The beans are cooled by blowing them up from below, so the beans are cooled effectively and quickly. In addition, steam, moisture and the like from the beans are removed to the outside of the combined extractor 30 together with the blown air. Since the beans are cooled rapidly and the moisture of the beans is removed, the aroma is preserved in the beans, and the beans are uniformly ground during grinding after cooling, and a tasty coffee liquid can be extracted.

When the blower 40 finishes blowing, this time the combined extractor 30
The crushing blade portion 35 is rotated, and the roasted beans are crushed for ten to several ten seconds.

When the crushing is completed, the heater 54a of the heat exchange section 54 of the pouring machine 50
Is turned on, the water in the heat exchange coil 54b is heated, and the conduit 53
Is moved to the pouring port 52 side, and hot water of, for example, 70 ° C. is poured from the pouring port 52. The poured warm water is guided by the conical guide 33,
It flows along the upper surface of the guide 33 without jumping and is smoothly introduced into the extractor 30. As a result, coffee liquid is extracted from the ground beans and filtered by the filter 34. When the water in the water tank 51 runs out, the heater 54a turns off. During this time, it takes about 5 to 6 minutes. The heater 54a can be kept in a heat retaining state by a heat retaining button (not shown).

The coffee liquid dripted by the filtration filter 34 is dripted to the coffee server 60 through the outlet pipe 37.

It takes about 15 minutes from the introduction of raw beans to the end of drip.

The roaster 20 has a door 21 for discharging the beans at the bottom of the container 21.
Separately from b, a slit for removing dust by roasting may be provided.

<Effect> The coffee maker of the present invention has the above-mentioned configuration. According to the configuration of claim 1, the coffee maker has three functions of cooling, crushing, and extracting roasted coffee beans. As a container, a dual-use extractor 30 equipped with a filtration filter 34 and a crushing blade part 35 and a roasted bean receiving port, a cooling blast receiving port, and a hot water receiving port for extraction was provided. So, an extractor that combines cooling, crushing and extraction of roasted beans
It is possible to use all within 30. Therefore, the device can be made very compact. Further, by cooling the roasted beans in the combined extractor 30 different from the roasting means, the cooling can be performed sufficiently effectively as compared with the case of cooling in the heated roaster 20. Therefore, cooling to room temperature can be performed quickly, and steam, moisture, and water can be removed smoothly. Therefore, the aroma of coffee is maintained well and the crushing is performed uniformly, so that the coffee liquid with good taste can be extracted.

According to the configuration of claim 2, in addition to the effect of the configuration of claim 1, by connecting the cooling air blowing inlet to the extraction pipe 37 for the extracted coffee liquid provided in the dual-purpose extractor 30, Since the air from the blower 40 is blown up from the bottom of the combined extractor 30 through the filtration filter 34, the air from the blower 40 is combined with the coffee liquid outlet pipe 37.
Since the air can be blown into the air blower 30, there is no need to separately provide a blower passage from the blower 40, a blower inlet for blowing air to the combined extraction port, etc., and the configuration can be simplified. Further, since air can be blown from the bottom of the combined extractor 30 through the filter filter 34, the beans can be effectively cooled. Further, according to the configuration of claim 3, in addition to the effect of the configuration of claim 1 or 2, in the roasting device 20 as roasting means, an elastic spring body that rotates along the inner bottom surface thereof is formed. Stirring blade
Since 23 is provided, beans can be stirred very smoothly without being caught on the way. Therefore, roasting can be performed uniformly.

According to the configuration of claim 4, in addition to the effect of the configuration of claim 3, since the shaft 24 on the stirring blade 23 side is separated from the shaft 27 on the drive source 26 side, heat to the drive source 26 side Conduction is prevented and the durability of the drive source 26 can be increased. Further, the rotation on the side of the drive source 26 is changed by the stirring blades 23 via the spring bodies 27a and 24a.
Since it is transmitted to the side, there is room for rotation of the stirring blade 23,
The stirring can be done smoothly.

According to the structure of claim 5, in addition to the effect of the structure of any one of claims 1 to 4, a ring-shaped far-infrared heater 22 is provided in the upper part of the roaster 20 as a roasting means. Since the shielding member 25 is provided to mitigate the radiant heat to the lower part of the center of the ring of the heater 22, the roasting device is constituted by the shielding member 25.
The roasting of beans that gather in the center of 20 can be eased, and the entire beans can be roasted uniformly.

According to the configuration of claim 6, in addition to the effect of any one of claims 1 to 5, at the center of the hot water receiving port in the upper part of the dual-use extractor 30, at a position below the hot water pouring port 52. Since the cone-shaped guide 33 is provided, the combined extractor 30
Smoothly without falling water
Moreover, it can be introduced into the dual-purpose extractor 30 without any bias. Also, when the beans are crushed, the beans can be prevented from popping out.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a coffee maker showing an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line AA of FIG.
FIG. 4 is an overall perspective view. 10: Exterior case 20: Roasting device 22: Far infrared heater 23: Stirring blade 24: Stirring blade side shaft 24a: Spring body 25: Shielding member 26: Drive source 27: Drive source side shaft 27a: Spring body 30: Combined extractor 33: Conical guide 34: Filtration filter 37: Outlet pipe 40: Blower 50: Pouring machine 60: Coffee server 70: Operation panel

Claims (6)

[Claims] 1. A roasting means for roasting green coffee beans, a cooling means for cooling the coffee beans roasted by the roasting means, and a crushing means for crushing the coffee beans cooled by the cooling means. It has at least an extracting means for extracting coffee liquid from coffee beans crushed by the crushing means, and roasts green beans at a predetermined timing, cools and crushes them to extract the coffee liquid. A coffee maker is provided with a filtration filter 34 and a crushing blade portion 35 inside as a container for performing the three functions of cooling, crushing and extracting the roasted coffee beans. A coffee maker equipped with a combined use extractor (30) having an inlet for roasted beans, an inlet for cooling and an inlet for hot water for extraction. 2. The filter from the bottom of the combined extractor 30 for connecting the air from the blower 40 to the extraction pipe 37 of the extracted coffee liquid provided in the combined extractor 30 by connecting a cooling air intake port. The coffee maker according to claim 1, wherein the coffee maker is configured to blow up through 34. 3. A stirring blade 23 made of an elastic spring body that rotates along the inner bottom surface of the roaster 20 as a roasting means.
The coffee maker according to claim 1 or 2, further comprising: 4. The rotation of the stirring blade 23 of the roaster 20 is controlled by the drive source 26.
The rotation of the spring body 27a fixed to the side shaft 27 causes the spring body 24a provided on the shaft 24 on the side of the stirring blade 23 separated from the shaft 27 on the side of the drive source 26 to be pushed and rotated. The coffee maker according to claim 3, characterized in that 5. A shield member 25 for providing a ring-shaped far-infrared heater 22 in the upper part of a roaster 20 which is a roasting means and for relaxing radiant heat to the lower part of the center of the heater 22.
The coffee maker according to any one of claims 1 to 4, further comprising: 6. A conical guide 33 is provided below the hot water pouring port 52 at the center of the hot water receiving port in the upper portion of the dual-use extractor 30. The coffee maker described in Crab.