JPH0420376Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a coffee mill that can easily and easily grind coffee beans.

[Conventional technology]

In order to enjoy delicious coffee, it is important to use fresh coffee powder immediately after grinding the coffee beans in a coffee mill.Therefore, in order to easily enjoy delicious coffee at home, various manual or electric coffee machines are available. Mills are commercially available. However, in order to crush hard coffee beans in a coffee mill, a considerable amount of force is required to turn the grinder handle, and in order to prevent the mill body from vibrating or rattling during operation, conventional In coffee mills, the weight of the mill itself is increased,
In manual models, a presser part is provided on the mill body, and the mill body can be pressed against a table top etc. by hand during operation, or it can be fixed to a table etc. with a fixture, so that the mill itself can be easily ground when grinding coffee beans. The structure was designed to prevent vibration and rattling.

[Problem that the invention attempts to solve]

However, traditional coffee mills like the one above,
The mill itself is large and heavy, or cannot be used unless it is fixed to a table etc., so it is inconvenient to carry and can only be used in limited places, making it easy to grind coffee beans anytime, anywhere. Enjoy delicious freshly ground coffee,
That was not possible.

In view of the above-mentioned problems, the present invention aims to provide a coffee mill with a compact and simple structure that allows you to easily grind coffee beans and enjoy freshly ground delicious coffee anytime and anywhere. It is something.

[Means for solving problems]

In order to achieve the above-mentioned purpose, the coffee mill according to the present invention has an internal space that opens upward and downward, and has a substantially conical groove formed therein and a spiral groove formed at the upper part of the circumferential slope to serve as a supply groove. , having a fine blade on the lower outer circumferential surface to which the male blade of the grinder that serves as the crushing part is fixed, and an outer cylinder formed by detachably connecting a container to the lower opening, and an internal space opening upward and downward; The inside is approximately cylindrical, and the upper inner surface has multiple vertical blades to serve as feeding blades, and the lower part expands in diameter in an inclined manner toward the opening, and is crushed by providing fine blades on the inclined surface. The female blade of the grinder as a part is fixed, and the lower part is shaped so as to be inserted into the inside of the outer cylinder from the upper opening of the outer cylinder, and the inner cylinder is connected to the power means, and the outer cylinder The male blade and the female blade of the grinder with the inner cylinder and the inner cylinder attached to each are inserted into the supply groove of the male blade through the lower end opening of the female blade so that the crushed parts of the male blade and the female blade face each other. They are connected in a manner that is height adjustable and rotatable.

[Effect]

The coffee mill according to the present invention has the above-mentioned configuration, and by introducing coffee beans into the inner cylinder of the coffee mill through the upper opening, and rotating the inner cylinder with a power means associated with the inner cylinder, The female blade of the grounder fixed to the inner cylinder rotates relative to the male blade fixed to the outer cylinder, and the coffee beans are caught by the feed blade on the inner surface of the female blade and rotate within the glider. is forcibly fed into the supply groove of the male blade to the crushing part below in a regulated state, crushed between the crushing parts of the male blade and female blade, and becomes coffee powder from the lower opening of the outer cylinder. It is housed in a container connected to the opening.

〔Example〕

Hereinafter, the coffee mill of the present invention will be explained in more detail with reference to embodiments shown in the drawings.

The coffee mill 1 according to the present invention, as shown in FIG.
A handle 6 is protruded from the upper outer wall of the cylinder 5 as a power means, and a cap 7 is appropriately attached to the upper opening of the inner cylinder 5.

The outer cylinder 3 has a cylindrical shape with an internal space opening upward and downward, and integrates a mill part 9 in which a male blade 8 of a grinder is attached inside, and a connecting part 10 in which a container 2 is detachably attached to the lower part. The male blade 8 is fixed upwardly to a mounting part 12 horizontally suspended at a central position inside the cylinder by a mounting rod 11 protruding from the inner wall of the mill 9, and
A protrusion 13 is provided on the inner surface of the lower opening of the container 2, and a spiral protrusion 14 provided on the outer peripheral surface of the upper end opening of the container 2 is screwed into the protrusion 13, whereby the container 2 is attached to the lower part of the outer cylinder 3. It is detachably attached to the

The inner cylinder 5 has a cylindrical shape that is open vertically and is large enough to be loosely inserted into the upper opening of the mill part 9 of the outer cylinder 3. A female blade 16 of a grinder is provided on the lower inner wall of the reduced diameter part 15. The diameter-reduced portion 15 is formed on its outer peripheral surface.
It is fixed to the inner wall, and a stepped part 17 is formed at the upper part of the inside of the reduced diameter part 15, and a cylindrical rotating part 18 with a continuously enlarged diameter is integrally connected to the upper part of the stepped part 17. A handle 6 with a rotatable grip 19 attached to the tip as a power means is protrudingly provided on the outer wall surface of the diameter reducing part 15, and a support rod 20 protruding from the inner wall of the reduced diameter part 15 is provided on the upper inner wall of the reduced diameter part 15. A shaft support 22 with a space formed inside for supporting one end of a shaft 21 for connecting to the outer cylinder 3 is horizontally suspended at a central position within the reduced diameter portion 15, and also has a rotary The cap 7 is detachably attached to the upper opening of the portion 18.

The connection between the outer cylinder 3 and the inner cylinder 5 is achieved by inserting an annular height adjustment plate 4 between the upper edge of the mill part 9 of the outer cylinder 3 and the step part 17 of the inner cylinder 5. The reduced diameter part 15 of the inner cylinder 5 is inserted through the upper opening of the part 9, and the male blade 8 of the grinder attached to the outer cylinder 3 and the female blade 16 attached to the inner cylinder 5 are placed facing each other. The shaft 21 is formed by locking the head 25 on the lower surface of the male blade attachment part 12 of the cylinder 3 via a washer 24 or the like to prevent it from coming off. A push nut 2 is attached to the tip of the shaft 21 by penetrating through and protruding upward, and inserting the tip of the shaft 21 into the inner space of the pivot support 22 through the shaft support bottom surface 26 of the inner cylinder 5.
By fitting the spring 28, which has an upper part to the push nut 27 and a lower part to the shaft support bottom surface 26, to the shaft 21 between a retaining member such as No. 7 and the shaft support bottom surface 26, the outer cylinder 3 and The inner cylinder 5 is connected to the inner cylinder 5 in a state where it is elastically biased by a spring 28 in a direction in which the inner cylinder 5 approaches each other.

The height adjustment plate 4 disposed between the upper edge of the mill part 9 of the outer cylinder 3 and the reduced diameter part 15 of the inner cylinder 5 and the height adjustment structure are shown in FIGS. 4 and 5. As shown in FIG. 2, a deep groove is formed by cutting one side edge 29 vertically downward and cutting the other side edge 30 upwardly on the entire circumference of the upper edge of the mill part 9 of the outer cylinder 3. Notches 31 of different sizes are continuously formed on the entire circumference of the upper edge of the mill part 9, and a flange part 32 is formed on the inner surface of the height adjusting plate 4 to lock the upper surface to the stepped part 17 of the outer wall of the inner cylinder. An engagement protrusion 3 is provided on the lower surface of the flange 32 downwardly.
The engagement protrusion 33 of the height adjustment plate 4
The lower end is engaged in the notch 31 of the mill part 9, and the stepped part 17 of the inner cylinder 5 is attached to the upper side of the flange part 32 of the height adjustment plate 4.
The outer cylinder 3 and the inner cylinder 5 are connected in a locked state, and both the outer cylinder 3 and the inner cylinder 5 are moved toward each other by a spring 28 that is fitted onto the tip of a shaft 21 that connects the two cylinders. The flange 3 of the height adjustment plate 4 is elastically biased to
2 is pressed downward by the stepped portion 17 of the inner cylinder 5, and the engagement protrusion 33 forms a notch 3 at the upper end of the outer cylinder mill part 9.
1 and is engaged in a resiliently pressed state by a spring 9. The notches 31 extend over the entire circumference of the upper edge of the outer cylindrical mill portion 9 and form a plurality of groups of notches that change in several stages, and the height adjustment plate 4 corresponds to the number of the groups of notches. An engaging protrusion 33 is provided in the notch group to be engaged with the notches of the same depth in the set of notches, and the number of the protrusions 33 is
That is, the larger the number of the notch groups, the larger the contact surface between the height adjusting plate 4 and the upper edge of the mill portion, and the more stable the engagement relationship between the two becomes.

Coffee is ground by adjusting the height of the outer cylinder 3 and the inner cylinder 5 using the height adjustment plate means configured as described above, and adjusting the size of the gap between the male blade 8 and the female blade 16 of the grinder. To adjust the coarseness of the beans, the height adjustment plate 4 is moved along the sloped side edge 3 of the cutout of the mill section 9.
Adjacent notches 31 with different depths rotated in the 0 direction
By engaging with the outer cylinder 3 and the inner cylinder 5, the heights of the outer cylinder 3 and the inner cylinder 5 are changed (Figs. 5 and 6). By changing the gap c between the male blade 8 and the female blade 16, the roughness with which the coffee beans are ground can be adjusted. Further, as is clear from the above structure, the spring 28 is fitted onto the shaft 21 in the shaft support 22 provided in the inner cylinder 5 and connects the outer cylinder 3 and the inner cylinder 5 via the shaft 21. The strength is movable from the original notch 31 in which the engaging protrusion 33 of the height adjusting plate 4 engages to the adjacent notch 31 beyond the upper edge of the mill part 9 during the height adjustment, In addition, when crushing coffee beans between the male blade 8 and female blade 16 of the grounder, the spring 28 is required to have enough strength to crush the coffee beans between the two blades 8 and 16 against the hardness of the coffee beans. It will be done.

Further, as the grounder used in the above-mentioned coffee mill 1, for example, those shown in FIGS. 7 to 12 are employed. That is, the male blade 8 is made of ceramics, has a conical shape with a notched top, and has a spiral groove on the upper circumferential slope that is deep at the top and shallower toward the bottom. A supply groove 35 is formed by forming a supply groove 35, and a fine inclined blade is carved on the lower outer circumferential surface to form a crushing part 36,
In addition, a shaft through hole 37 is bored in the central axis part, and one of the female blades 16 has a generally cylindrical shape as a whole, and a plurality of vertical blades are provided around the entire circumference on the inner surface of the upper part, and a feed blade 38 is formed. The lower part expands in diameter in an inclined manner toward the opening, and the crushed part 3 of the male blade is attached to the inclined surface.
A blade in the direction crossing the blade engraved in 6 is carved to form a crushing part 39, and the supply groove 35 portion at the upper part of the male blade 8 is inserted from the lower end opening of the female blade 16 to form a crushing part of the double blades 8, 16. The glider is constructed by associating the two 36 and 39 facing each other (FIG. 12).

When crushing coffee beans with the grounder consisting of the male blade 8 and female blade 16 as described above, the crushed object such as coffee beans, which is introduced through the opening at the upper end of the female blade 16, rotates the double blades 8 and 16. As a result, the lower crushed portions 36, 39 are forced into the supply groove 35 of the male blade 8 while being locked by the feed blade 38 on the inner surface of the female blade 16 and restricted from rotating within the grinder.
It is crushed between the crushing parts 36 and 39 of the male blade 8 and female blade 16, and is crushed into powder.

To grind coffee beans using the coffee mill 1 according to the present invention as described above, remove the cap 7 attached to the upper opening of the inner cylinder 5, insert the coffee beans into the mill 1 through the opening, and then insert the coffee beans into the mill 1 through the opening. When gripped with one hand, the handle 6 is rotated by holding the grip 19 provided at the tip of the handle 6 with the other hand to rotate the inner cylinder 5, and the knife blade of the grander is fixed to the inner cylinder 5. 16 is rotated relative to the male blade 8 which is fixed to the outer cylinder 3,
The introduced coffee beans are fed into the crushing parts 36 and 39 located below between the two blades 8 and 16 of the grander, and the crushed coffee beans there are crushed into powder into the container 2 attached to the connecting part 10 of the outer cylinder 3. It will be accommodated. In addition, in order to adjust the roughness of the ground coffee powder, the height adjusting plate 4 is rotated relative to the outer cylinder 3, so that the engaging protrusion 33 of the height adjusting plate 4 is engaged with the outer cylinder 3. The height of the outer cylinder 3 and the inner cylinder 5 is changed by appropriately selecting the depth of the notch 31 at the upper end of the cylinder mill part 9, and the male blade 8 of the grander is fixed to the outer cylinder 3 and the inner cylinder 5. By adjusting the gap c between the knife blade 16 and the knife blade 16, the coarseness of the crushed coffee powder can be adjusted. Further, according to the coffee mill 1 according to the present invention as described above, the male blade 8 and female blade 16 of the grounder are fixed to the outer cylinder 3 and the inner cylinder 5, respectively, and the outer cylinder 3 and the inner cylinder 5 are rotated. Because it has a simple structure that connects freely, the mill 1 itself can be made compact, making it suitable for use as a small-capacity coffee mill for one or two people. The power means for rotating it is not limited to manual means using a handle as in the above embodiment, but may be related to a power means such as a motor; Even when the inner cylinder 5 is rotated relative to the outer cylinder 3, it is not necessary to fix the outer cylinder 3. Hold the handle 6 and the outer cylinder 3 in each hand, and hold the handle 6 and the outer cylinder 3 in opposite By rotating the machine in the same direction, coffee beans can be easily ground with relatively little force.
Furthermore, if the height is adjusted by inserting the annular height adjustment plate 23 between the upper edge of the outer cylinder and the stepped part of the inner cylinder, the coarseness of grinding coffee beans can be adjusted by adjusting the height. Adjustment can be made extremely easily by simply rotating the height adjustment plate 4 relative to the outer cylinder 3. Furthermore, the grinder is made of ceramics, and a downward spiral groove is formed on the circumferential slope of the male blade 8 to form the supply groove 3.
5, and the structure is such that coffee beans are prevented from swirling between the female blade 16 and the vertical feed blade 38 provided at the upper part of the inner surface thereof, and are fed into the supply groove 35 of the male blade 8 to the lower crushing part. For example, the coffee beans can be guided smoothly to the crushing part without applying downward pressure to the grinder, and the coffee beans will not be bounced by the crushing part of the grinder, especially when grinding a small amount of coffee beans. This makes it possible to improve work efficiency.

In the figure, 40 is a scale provided on the outer cylinder 3, and 41 is a pointer for the scale 40 provided on the height adjustment plate 4.

[Effect of idea]

As mentioned above, the coffee mill according to the present invention is a coffee mill in which the outer cylinder to which the male blade of the grinder is fixed and the inner cylinder to which the female blade of the grinder is fixed are rotatably connected with both blades of the grinder facing each other. Due to its simple configuration, the mill itself can be made compact, and there is no need to press the main body onto a desk or the like or use fixing fittings when grinding coffee beans. It can be held and worked with both hands, and has a convenient structure especially as a small quantity coffee grinder for one or two people.
Furthermore, since the structure is simple and compact, it can be made portable, allowing you to enjoy freshly ground and delicious coffee anytime and anywhere.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the coffee mill according to the present invention, FIG. 2 is an exploded perspective view of a part of the coffee mill in cross section, and FIG. 3 is a part of the coffee mill in cross section. 4 is a plan view of the coffee mill, FIGS. 5 and 6 are side sectional views for explaining the height adjustment structure, FIG. 7 is a plan view of the male blade of the grinder, and FIG. The figure is a side view of the male blade, FIG. 9 is a plan view of the female blade of the grinder, and
FIG. 0 is a bottom view of the scalpel blade, FIG. 11 is a side sectional view of the scalpel blade, and FIG. 12 is a cross-sectional side view of the scalpel blade in a state where the male blade and the female blade of the grinder are combined. 1...Coffee mill, 2...Container, 3...Outer tube, 4...Height adjustment plate, 5...Inner tube, 6...Handle, 7...Cap, 8...Male blade, 9... Mill part, 10... Connection part, 12... Male blade attachment part,
15... Reduced diameter part, 16... Female blade, 17... Step part, 18... Rotating part, 21... Shaft, 22...
...Axis support, 24...Watushia, 25...Head, 2
6... Bottom surface of shaft support, 28... Bottom surface, 31... Notch, 32... Flange, 33... Protruding piece, 35... Supply groove, 36... Crushed part, 37... Shaft through hole,
38...Feeding blade, 39...Crushing portion, c...Gap.

Claims (1)

[Claims for Utility Model Registration] It has an internal space that opens upward and downward, and has a substantially conical shape inside, with a spiral groove formed on the upper circumferential slope to serve as a supply groove, and a fine groove formed on the lower outer circumferential surface. It has an outer cylinder in which a male blade of a grinder is fixed, which serves as a crushing part, and a container is removably connected to the lower opening, and an internal space that opens upward and downward. A plurality of vertical blades are provided on the upper inner surface to serve as the feed blade, and the lower portion expands in diameter in an inclined manner toward the opening, and a fine blade is provided on the inclined surface to serve as the crushing portion of the female blade of the grinder. an inner cylinder whose lower part is fixedly fixed and whose lower part can be inserted into the inside of the outer cylinder from the upper opening of the outer cylinder, and which is connected to a power means, and the outer cylinder and the inner cylinder are attached to each other. The male blade and female blade of the grinder are connected by inserting the supply groove of the male blade from the lower end opening of the female blade so that the crushed parts of the male blade and female blade face each other, and the height can be adjusted. A coffee mill characterized by being rotatably connected.