JP3647704B2 - Coffee mill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coffee mill for pulverizing coffee beans, and more particularly to a coffee mill of a type for pulverizing coffee beans with electric rotating blades, and more particularly to a coffee mill structure that is incorporated in a coffee maker. It is.
[0002]
[Prior art]
Conventionally, in this type of electric coffee mill, a rotating blade driven by a motor is provided at the bottom of a storage container for storing coffee beans, and the top opening of the storage container is used to prevent the coffee beans from jumping out during grinding. The thing which provided the lid | cover fitted to is used.
[0003]
[Problems to be solved by the invention]
By the way, in this kind of coffee mill, in order to allow the movement of the coffee beans due to the pulverization, the storage container needs a space that is considerably larger than the capacity of the coffee beans, and the storage container is filled with coffee beans. If put in, the coffee beans cannot be crushed.
[0004]
For this reason, the limit on which the coffee beans are normally entered is displayed on the inner surface of the container, but the user often puts the coffee beans in excess of the limit indication and cannot be properly ground.
[0005]
In addition, if the pulverization is insufficient, the pulverization operation is repeated further. However, if the pulverization is performed in this way, the particles are likely to be non-uniform, and the motor will be used for longer than the rated time of the motor. If this is the case, a fatal failure may occur in the worst case.
[0006]
The present invention has been made in view of such circumstances, it is not possible to put coffee beans exceeding the limit capacity of the storage container, and so that it cannot be crushed even if forced, always below the limit capacity It is intended to be used only in
[0007]
[Means for Solving the Problems]
Thus, the present invention is a coffee mill that comprises a storage container for storing coffee beans and a lid fitted to the top of the storage container, and crushes the coffee beans in the storage container. A recess is formed on a part of the container so that a coffee beans can be placed on the bottom surface corresponding to a predetermined amount of coffee beans in the container, and the lid is fitted to the upper opening of the container And when the coffee bean is mounted in the said recessed part, the short cylinder part which cannot be fitted appropriately was formed.
[0008]
In this invention, it is preferable that the said recessed part has the depth which can mount coffee beans in a line, and the said short cylinder part is located in the inner peripheral part in the said recessed part. The coffee mill is provided with a rotating blade for crushing coffee beans in the container, and the operation of the rotating blade is performed by a switch that can be operated only when the container and the lid are correctly fitted. Is preferably controlled.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a coffee maker 2 incorporating a coffee mill 1 of the present invention.
[0010]
In the coffee maker 2, a hot plate 4 is provided at the lower part of the main body 3, and an annular block 6 having a heater 5 built in is attached to the lower surface of the hot plate 4. A water pipe 7 is formed. The water in the water tank (not shown) is heated by the heat of the heater 5 through the water pipe 7, rises through the pumping pipe 8, and is discharged from the discharge port 9 at the top of the main body 3.
[0011]
A coffee pot 10 is placed on the hot plate 4, and a filter case 11 is placed on the top of the coffee pot 10. A substantially conical filter is set in the filter case 11. Coffee powder is put in the filter, hot water discharged from the discharge port 9 is poured onto the coffee powder in the filter, and the extracted coffee is stored in the coffee pot 10 and kept warm by the heat of the heater 5. It has become.
[0012]
Thus, the coffee mill 1 of the present invention is detachably attached to the main body 3 on the back of the main body 3 of the coffee maker 2. As shown in FIG. 3, the coffee mill 1 includes a storage container 12 and a lid 13. A rotary blade 14 is provided at the bottom of the storage container 12, and the storage container 12 is coupled to the main body 3 of the coffee maker 2. Thus, the rotary blade 14 is connected to the rotary shaft 16 of the motor 15 provided in the main body 3.
[0013]
The storage container 12 and the lid 13 are formed with overhang portions 12 a and 13 a, respectively, a push button 17 is formed on the overhang portion 13 a of the lid 13, and a sliding rod 18 is formed on the overhang portion 12 a of the storage container 12. Each is provided.
[0014]
The overhanging portion 13a of the lid 13 is formed with a recess 19 on the upper surface, and a cylindrical push button 17 is fitted in the recess 19 so as to be slidable up and down, and an operating rod suspended by the push button 17 20 penetrates the bottom of the recess 19 and protrudes from the lower surface of the recess 19 when the push button 17 moves downward.
[0015]
The sliding rod 18 is provided so as to be slidable up and down through the overhanging portion 12a of the container 12, and is always biased upward by the spring means 21, and its upper end is the upper surface of the overhanging portion 12a when moving upward. It is consistent with Japan.
[0016]
When the overhanging portions 12a and 13a are made to coincide with each other and the lid 13 is correctly coupled to the storage container 12, the operation rod 20 of the push button 17 coincides with the sliding rod 18, and the operation rod 20 is moved by the elasticity of the spring means 21. When pushed up, the push button 17 also moves up in the recess 19.
[0017]
Further, a switch 22 is provided in the main body 3, and an operating rod 23 of the switch 22 is exposed on the upper surface. When the coffee mill 1 is correctly attached to the main body 3, the sliding provided in the container 12 is provided. The lower end of the rod 18 comes into contact with the upper end of the operating rod 23.
[0018]
Then, in a state where the lid 13 is correctly coupled to the storage container 12 and is correctly set with respect to the main body 3, the push button 17, the slide rod 18, and the operation rod 23 are continuous, and the sliding is performed by depressing the push button 17. The operating rod 23 can be moved downward via the moving rod 18 to operate the switch 22.
[0019]
Thus, a short cylinder portion 24 is suspended from the lid 13, and the short cylinder portion 24 is fitted and coupled to the inner periphery of the upper opening of the storage container 12. A recessed portion 25 having a recessed inner wall is formed in a part of the upper opening of the container 12, and the short cylindrical portion 24 is located along the inner periphery of the recessed portion 25, and the outer peripheral surface of the short cylindrical portion 24. A space 26 is formed between the inner wall of the recess 25.
[0020]
A convex portion 27 is formed on the outer periphery of the short cylindrical portion 24, and the convex portion 27 is engaged with both end portions of the recessed portion 25 to position the lid 13 with respect to the container 12. Yes.
[0021]
The depth of the recessed portion 25 has such a width that the coffee beans 28 can be placed in a line, and the position of the bottom surface of the recessed portion 25 substantially matches the storage limit of the coffee beans in the coffee mill 1. It is preferable to do so.
[0022]
[Action]
In the present invention, a desired amount of coffee beans is placed in the storage container 12, and the lid 13 is fitted to the storage container 12 with the convex portion 27 aligned with the recessed portion 25. Then, the container 12 is coupled to the main body 3 of the coffee maker 2.
[0023]
When the push button 17 provided on the lid 13 is pushed down in this state, the operating rod 23 is moved down through the sliding rod 18 as described above, the switch 22 is operated, and the motor 15 is energized. As a result, the rotary blade 14 rotates and the coffee beans in the container 12 are crushed.
[0024]
When the amount of coffee beans to be placed in the storage container 12 is equal to or less than a predetermined amount, the coffee mill 1 of the present invention can be appropriately operated as described above, and the coffee beans can be pulverized appropriately.
[0025]
However, when coffee beans exceeding a predetermined amount are put in the container 12, the uppermost coffee beans exceed the position of the recessed portion 25, so that the coffee beans 28 are placed in the recessed portion 25 as shown in FIG. Thus, when the lid 13 is fitted in this state, the short cylinder portion 24 comes into contact with the coffee beans 28 on the recessed portion 25, and the lid 13 cannot be fitted properly.
[0026]
Therefore, the push button 17 and the sliding rod 18 do not contact correctly, and the switch 22 cannot be operated even if the push button 17 is depressed, and the coffee beans in the container 12 cannot be crushed.
[0027]
A protruding portion having a shape that matches the overall shape of the recessed portion 25 is formed on the outer periphery of the short cylindrical portion 24 so that the protruding portion contacts the coffee beans 28 on the recessed portion 25 to prevent the lid 13 from being fitted. It can also be.
[0028]
However, when the lid 13 is pressed or shaken in this way, the coffee beans 28 on the recess 25 move inward from the recess 25, and the amount of coffee beans exceeds a predetermined amount. There is a possibility that the lid 13 is fitted into the container 12 and the tea ceremony of the rotary blade 14 becomes possible.
[0029]
Therefore, the short tube portion 24 is positioned on the inner peripheral portion of the recessed portion 25 without forming such an overhanging portion as shown in the drawing, so that the short tube portion 24 is formed into the recessed portion 25 as shown in FIG. When the lid 13 is pressed against the inside from the center of the upper coffee bean 28 and the lid 13 is pressed, the force moves the coffee bean 28 further outward, and the fitting of the lid 13 to the container 12 is allowed carelessly. To prevent it.
[0030]
【The invention's effect】
According to the present invention, in a state where coffee beans less than the storage limit of the storage container 12 are put, the lid 13 can be appropriately fitted to the storage container 12, and this is coupled to the main body 3 and the push button 17. , The rotating blades 14 can rotate and the coffee beans in the container 12 can be crushed. If the amount of coffee beans exceeds the storage limit, some coffee beans are placed in the recesses 25. , It becomes an obstacle and the lid 13 cannot be properly fitted to the container 12, and the coffee beans cannot be crushed even if the push button 17 is pressed.
[0031]
Therefore, the user is encouraged to discharge an excessive amount of coffee beans and properly reduce the amount, and at the time of use, an appropriate amount of coffee beans will always be added. An excessive load is not applied to the motor 15 by performing excessively repeated crushing operations.
[0032]
As described above, the present invention is preferably a mechanism in which the switch 22 cannot be operated in a state where the lid 13 is not properly fitted to the receiving container 12, but such a configuration is not indispensable. Even if the lid 13 cannot be fitted in the state in which the coffee beans 28 are placed in the recessed portions 25, it is notified that the storage limit has been exceeded, and an appropriate amount of coffee beans is discharged. It has the effect of encouraging use.
[Brief description of the drawings]
FIG. 1 is a central longitudinal sectional view showing an example of a coffee maker incorporating a coffee mill of the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. 1. FIG. 3 shows a coffee mill of the present invention. (A) is a center longitudinal cross-sectional view, (b) is a center longitudinal cross-sectional view of the principal part in the state mounted in the coffee bean in the recessed part.
4 is a sectional view taken along line IV-IV in FIG. 3 showing the coffee mill of the present invention.
DESCRIPTION OF SYMBOLS 1 Coffee mill 12 Container 13 Cover 14 Rotary blade 22 Switch 24 Short cylinder part 25 Recessed part

Claims (3)

In the coffee mill (1) comprising a container (12) for containing coffee beans and a lid (13) fitted to the upper part of the container (12), and crushing coffee beans in the container (12), A depression (28) on which a coffee bean (28) can be placed on a portion of the periphery of the upper opening of the storage container (12) with the position corresponding to a predetermined amount of coffee beans in the storage container (12) as a bottom surface ( forming a 25), said lid (13), appropriately fitted when the coffee beans in the recess by fitting (25) to the upper opening of the container (12) (28) is placed A coffee mill characterized in that a short cylinder portion (24) that cannot be combined is formed. The recessed portion (25) has a depth that allows the coffee beans (28) to be placed in a row, and the short tube portion (24) is located on the inner peripheral portion of the recessed portion (25). The coffee mill according to claim 1, characterized in that A rotary blade (14) for crushing coffee beans is provided in the storage container (12), and a switch that can be operated only when the storage container (12) and the lid (13) are correctly fitted ( The coffee mill according to claim 1 or 2, characterized in that the operation of the rotary blade (14) is controlled by 22).

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