JPS63286116A - Grinder of coffee beans - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a grinder for coffee beans, etc., which is used at home or in a vending machine, and which grinds raw materials for a small number of people.

2. Conventional technology In recent years, coffee bean grinders have been used not only in coffee shops but also at home or in vending machines to grind coffee beans for a small number of people in order to improve the aroma and taste of coffee. has been done.

An example of the conventional grinder for coffee beans, etc. mentioned above will be described below with reference to the drawings.

Figure 4 is a cross-sectional view of a conventional grinder for coffee beans, etc.
The figure is a top view of a conventional grinder for grinding coffee beans, etc. In the figure, reference numeral 1 denotes a base having a support 2. A motor 3 is fixedly supported on the base 1 via the support 2, and a motor shaft and a transmission (not shown) are connected to the motor 3. A special casing 6 is provided on the base 1 to surround the support column 2 and the motor 3, and a special casing 6 is provided on the base 1, and the rotation shaft 4 is attached to the upper end of the support column 2 and the casing 6 on the motor 3. A bottomed cylindrical fixing member 6 having an insertion hole into the fixing member 6 is mounted and fixed, and an extraction guide conduit 7 is fixed to the front side of the fixing member 6. It is formed in the peripheral wall of the member 6 and communicates with the member 3 through a communication hole 8.

On the other hand, a disc-shaped rotation receiver 9 is loosely inserted into the rotation shaft 4 within the fixed member 6, and an annular rotation tooth 10'Ir is placed on the receiver 9.
: Fixed. This receiver 9 is provided with a cylindrical boss part 12 in the center and a cylindrical boss part 12 in the center, with blades 11 on the outer periphery for pushing out the cut coffee beans outward, and a free end of the boss part 12 has a radially extending An extending cut groove 13 is formed to fit the receiver 9 onto the rotating shaft 4 via the boss portion 12, and a shear pin 1 is inserted from the cut groove 13 to a cut groove 16 formed on the upper part of the rotating shaft 4.
4 is fitted, the rotational force from the rotating shaft 4 is transmitted to the receiver 9 via the shear pin 14, and when an overload is applied,
The structure is such that the shear pin 14 is broken to interrupt transmission of rotational force.

A screw groove 1 is provided on the inner periphery of the groove at the upper inner position of the fixing member 6.
A ring-shaped operating body 16 having a diameter of 7 is rotatably fitted into the operating body 16, and an annular fixed receiver 16 having a threaded groove 19 on the outer periphery and a two-flap-shaped opening 2o on the inner periphery is inserted into the operating body 16. is screwed into the receiver 18, and an annular fixed tooth 21 is provided at the lower end of the receiver 18.
is fixed, and the fixed tooth 21 is made to face the rotary tooth 1o, while a plurality of locking grooves 22 extending in the same direction as the axis are formed on the outer periphery of the receiver 1.8 at predetermined intervals. An arc-shaped stop plate 23 as shown in FIGS. 6 and 7 is formed, and a long hole 24 is formed in the stop plate 23 along the arc. An upright plate 26 is bent at an intermediate position, and the upper part of the upright plate 26 is made narrow to form a stopper piece 26 that can be inserted into the locking groove 22. 6 with a screw 2A, and the stopper piece 26 is inserted into one of the locking grooves 22 to allow relative movement only in the axial direction.

Further, a bottomed cylindrical coffee bean supply body 28 having a spiral feeding groove 29 on the outer periphery is fitted onto the boss portion 12 of the rotary receiver 9, and a coffee bean supply body 28 is formed from the supply body 28 to the rotation shaft 4. The set screw 31 is screwed into the screw hole 30 that has been formed, and the receiver 90 is
It is configured to prevent the coffee beans from being removed from the rotating shaft 4 and to rotate the supply body 28 integrally with the receiver 9 to feed the coffee beans between the rotating teeth 10 and the fixed teeth 216''-no. It is.

Reference numeral 32 designates a hopper for accommodating coffee beans, and is provided such that its lower opening faces the opening 2o of the fixed receiver 18. Further, 33 is an upper cover, 34 is an operating lever, and the lever 34 is attached to the operating body 16 through a cutout window formed in the upper cover 33.
The location is configured to be displayed on a nameplate affixed to the upper cover 33. By adjusting the operating lever 34 to each position, coffee beans are cut with a roughness suitable for each coffee extraction method.

The operation of the coffee bean grinder configured as above will be described below.

When cutting coffee beans, first press the operating lever 34.
to rotate the operating body 16 and move the fixed receiver 18 up and down to adjust the distance between the fixed teeth 21 and the rotating teeth 1o,
The coffee beans are placed in a position where the so-called desired roughness is obtained, and then the coffee beans are put into the hopper 32, and the motor 3 is driven to rotate the rotating bene roller 99 and the rotating teeth 10. The feed body 28 is rotated, whereby the coffee beans in the hopper 32 are fed between the rotary tooth 10 and the fixed tooth 21 through the feed groove 29 of the feed body 28, and the coffee beans are fed between the teeth 10, 21. The particles are cut into a predetermined particle size at the step 9, and are pushed outward by the blades 11 of the rotary receiver 9, and taken out from the communication path 8 via the conduit 7.

Problems to be Solved by the Invention However, with the above configuration, a small amount of raw material (for example, 1 oy to
10oy) into the hopper 32 after starting the motor 3, the raw material hits the top surface of the rotating supply body 28, so it bounces around inside the hopper 32 and
This has the problem that it not only takes a long time to grind the raw material because it scatters outside, but also has an unfavorable appearance.

The present invention has been developed in view of the above problems, and even if a small amount of raw material is put into the hopper after the motor starts, the raw material does not bounce around inside the hopper or scatter outside the hopper, and can be crushed in a short time. The present invention also provides a grinder for grinding coffee beans, etc., which is easy to manufacture and can improve cleaning workability.

Means for Solving the Problems In order to solve the above-mentioned problems, the grinder for coffee beans, etc. of the present invention has a rotary receiver that supports rotating teeth, and a fixed member that is supported on a base. An operating body facing the receiving body, rotatably supported, and supporting fixed teeth; a fixed receiving body disposed inside the operating body having a trumpet-shaped opening on the inner periphery; The hopper includes a spiral raw material supply body fixed to a rotating rotating shaft and a chute connected to the supply body, the bottom of the hopper has an input opening on the outer periphery, and the supply body is located in the center. A conical anti-rebound body having a gap at the upper end surface and protruding upward is integrally formed.

Effects The present invention has the above-described configuration, so that even if a small amount of raw material is introduced from the hopper through the chute after the motor is started, the raw material does not come into contact with the upper end surface of the rotating supply body, and the feed groove is formed. It hits the side of the machine and is smoothly fed between both teeth.

EXAMPLE Hereinafter, a grinder for coffee beans, etc., according to an example of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a grinder for grinding coffee beans, etc., according to an embodiment of the present invention, and FIG. 2 is a top view of a grinder for grinding coffee beans, etc., according to an embodiment of the invention. It should be noted that the same parts as in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

36 is a chute fixing part connected to the opening 2o, into which the lower part of the chute 37 connected to the hopper 36 is inserted and fitted. Reference numeral 38 designates a conical anti-rebound body that protrudes upward at the center of the input opening 39, and is formed integrally with the chute 37 so as to cover the upper end surface of the supply body 28 with a plurality of lips 40 arranged radially. It is.

The operation of the above configuration will be explained below.

When cutting coffee beans, first press the operating lever 34.
Then, rotate the operating body 16 and move the fixed receiver 18 up and down to adjust the distance between the fixed teeth 21 and the rotating teeth 1o, and set it at the position where the desired roughness is obtained. At the same time as putting coffee beans into the hopper 3θ, the motor 3 is driven to rotate the rotary receiver 92, the rotary teeth 10.
The supply body 28 is rotated.

At this time, beans pass through the input opening 39 from the hopper 36 via the chute 37 and reach the supply body 28 due to their own weight.
The ricochet prevention body 38 prevents the upper end surface of the rotating supply body 28 from hitting the upper end surface of the supply body 28, and the feed groove 2 on the side surface of the supply body 28
9, is reliably supplied between both teeth 21 and 10, and is cut into a predetermined particle size between both teeth 10 and 21,
It is pushed outward by the blades 11 of the rotary receiver 9 and taken out from the communication path 8 via the conduit 7.

Therefore, compared to the conventional method, the feeding of the beans is not inhibited by the feeding body 28 and a smooth feeding action is possible, and the rebound prevention body 38 is formed integrally with the chute 37. Therefore, the supply body 28 is exposed simply by removing the chute 37 during cleaning, which is convenient for cleaning.

Effects of the Invention 10''- As described above, the present invention forms the rebound prevention body integrally with the chute, so that especially when grinding a small amount of beans in a short time, several beans may be crushed by the rotation of the feeding body. Since it does not bounce off and fall forever, there is no drawback that it takes a long time because the crushing cannot be completed.Furthermore, since the bounce prevention body is formed integrally with the chute, manufacturing is easy and low cost, and the chute does not need to be removed during cleaning. The removal exposes the supply body, which is easily soiled, so it is easy to work with.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a grinder for coffee beans, etc. showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line nn' in FIG. 1, and FIG. 3 is a perspective view of essential parts of a chute. FIG. 4 is a sectional view of a conventional crusher, and FIG. 6 is a top view of the same. 9... Rotating receiver, 16... Operating body, 1
8...Fixed receiver, 10...Rotating tooth, 2
1... Fixed tooth, 28... Supply body, 37
... Chute, 39 ... Input opening, 38
...Bounce prevention body.

Claims (1)

[Claims] a rotating receiver supporting rotating teeth; an operating body rotatably supported by a fixed member supported on a base and facing the rotating receiver, and supporting the fixed teeth; a fixed receiver having a trumpet-shaped opening on its inner periphery; a spiral raw material supply body fixed to a rotating shaft that rotates the rotating teeth; and a chute connected to the supply body. coffee beans, etc., which has an input opening on the outer periphery at the bottom of the chute, has a gap at the upper end surface of the supply body in the center, and is integrally formed with a conical rebound prevention body projecting upward. crusher.