JPH0720463B2 - Crusher for coffee beans - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a crusher for coffee beans or the like, which is used at home or in an automatic vending machine, for charging and crushing raw materials for a small number of people.

2. Description of the Related Art In recent years, a crusher for coffee beans or the like has been used for crushing only a small number of people not only at a coffee shop but also at home or in a vending machine in order to improve the aroma and taste of coffee.

An example of the conventional crusher for coffee beans and the like will be described below with reference to the drawings.

FIG. 3 is a cross-sectional view of a conventional crusher for coffee beans and the like. In the figure, reference numeral 1 is a base provided with a column 2, and the base 1
A motor 3 is fixedly supported on the upper part through the pillar 2, and a motor shaft and a transmission (not shown) are also provided from the motor 3.
A rotating shaft 4 is interlockingly protruded through a casing 5 and a casing 5 is provided on the base 1 so as to surround the support column 2 and the motor 3, and the rotation is provided on the upper end of the support column 2 and the casing 5 on the motor 3. A bottomed cylindrical fixing member 6 having an insertion hole for the shaft 4 is placed and fixed, and an extraction guide conduit 7 is fixed to the front side of the fixing member 6, and the conduit 7 is fixed.
A communication hole is formed in the inner wall of the member 6 through a communication hole 8 formed in the peripheral wall of the member 6.

On the other hand, a disc-shaped rotary receiver 9 is loosely inserted into the rotary shaft 4 in the fixed member 6, and an annular rotary tooth 10 is fixed on the rotary receiver 9. The rotary receiver 9 is provided with a blade 11 on the outer periphery for ejecting the cut grains of coffee beans outward, and a cylindrical boss portion 12 at the center, and the free end portion of the boss portion 12 has a radial direction. Is formed on the rotary shaft 4 through the boss portion 12, and the shear pin extends from the cut groove 13 to the cut groove 15 formed on the upper part of the rotary shaft 4. 14 is fitted, and the rotational force from the rotary shaft 4 is transmitted to the rotary receiving member 9 via the shear pin 14, and when an overload is applied, the shear pin 14 is broken to interrupt the transmission of rotational force. .

A screw groove 17 is formed on the inner periphery of the fixing member 6 at the upper position.
A ring-shaped operating body 16 having a ring shape is rotatably fitted, and a screw groove 19 is screwed into the operating body 16 and an annular fixing member 18 having a trumpet-shaped opening 20 is screwed into the operating body 16. The fixed receiving member 18 is fitted into the fixing receiving member 18, and an annular fixed tooth 21 is fixed to the lower end portion of the fixed receiving member 18 so that the fixed tooth 21 faces the rotary tooth 10. A plurality of locking grooves 22 extending in a predetermined direction are formed at predetermined intervals, and an arc-shaped stop plate 23 is formed, and a long hole is formed in the stop plate 23 along the arc, The standing plate is bent and formed at an intermediate position in the longitudinal direction of the plate 23, and the stopper plate 26 is formed so that the upper portion of the standing plate 25 has a narrow width and can enter the locking grooves 22. The fixing member 6 is fixed to the upper end surface of the fixing member 6 with a screw 27, and the locking piece 26 is inserted into one of the locking grooves 22 to allow relative movement only in the axial direction. To.

Further, a bottomed cylindrical coffee bean supply body 28 having a spiral feed groove 29 on the outer periphery is fitted on the boss portion 12 of the rotary receiver 9, and the rotary shaft 4 is formed from the supply body 28. Screw hole
A set screw 31 is screwed into 30 to rotate the rotation shaft 4 of the rotation receiving body 9.
The coffee beans are rotated together with the rotary receiving body 9 of the supply body 28 to rotate the coffee beans to the rotary teeth 10 and the fixed teeth 21.
It is configured to be sent between and.

Reference numeral 32 denotes a hopper that stores coffee beans, and its lower opening is provided so as to face the opening 20 of the fixed receiver 18. Further, 33 is an upper cover, 34 is an operation lever,
Through the cutout window formed in the upper cover 33.
The operating lever 34 is attached to the upper cover 33, and the position of the operating lever 34 is configured to be displayed by a nameplate attached to the upper cover 33. By adjusting the operating lever 34 to each position,
The coffee beans are cut with a roughness suitable for each coffee extraction method.

The operation of the crusher for coffee beans or the like configured as described above will be described below.

When cutting coffee beans, first use the operation lever 34
Then, the operating body 16 is rotated to move the fixed receiving body 18 up and down to adjust the distance between the fixed tooth 21 and the rotating tooth 10 and set it to a so-called desired roughness, then the hopper 32.
The coffee beans in the hopper 32 are rotated while the coffee beans in the hopper 32 are rotated by driving the motor 3 while driving the coffee beans into the inside.
It is supplied between the rotary tooth 10 and the fixed tooth 21 through the feed groove 29 of the, and is cut to a predetermined grain size between both teeth 10 and 21, and is outwardly flung by the blade 11 of the rotary receiver 9. , Is taken out from the communication passage 8 via the conduit 7.

Problems to be Solved by the Invention However, in the above-mentioned configuration, a small amount of raw material (for example, 10 g to 100 g) is used for use at home or in a vending machine.
When g) is put into the hopper 32 after the motor 3 is started, the raw material hits the upper surface of the rotating supply body 28, so that the raw material splashes inside the hopper 32 or scatters out of the hopper 32 to grind the raw material. There is a problem that not only the cutting time is long but also the appearance is not preferable.

In view of the above problems, the present invention, even if a small amount of raw material is put into the hopper after starting the motor, the raw material does not splash around in the hopper or scatter outside the hopper, and coffee beans that can be ground in a short time, etc. The crusher is provided.

Means for Solving the Problems In order to solve the above problems, a crusher for coffee beans or the like according to the present invention has a bottomed cylindrical fixing member having an insertion hole into which a rotary shaft rotated by a motor is inserted. And a rotary receiver that supports an annular rotary tooth that rotates on a rotary shaft in the fixed member, a fixed tooth that opposes the rotary tooth, and an operation that supports the fixed tooth and can move up and down. A body, a fixed receiver having an opening on the inner circumference disposed in the operating body, and a feed groove that is spirally wound on the outer circumference by being rotated by the rotary shaft. In a crusher for coffee beans or the like having a supply unit that supplies between fixed teeth, a cylindrical chute is arranged on the upper portion of the fixed receiving unit, and an upper end surface of the supply unit is provided on an inner bottom surface of the chute. Has an inclined portion covering the upper end of the supply body at the lower end of the inclined portion. A charging opening is provided below the surface and is connected to the spiral feed groove of the supply body.

Effect of the Invention With the above-described structure, 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 contact the upper end surface of the rotating supply body and the feed groove is formed. It hits the side and is smoothly fed between both teeth.

Example Hereinafter, a crusher for coffee beans and the like according to an example of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a crusher for coffee beans or the like according to an embodiment of the present invention, and FIG. 2 is a top view of a chute according to an embodiment of the present invention. The same parts as those in the conventional example are designated by the same reference numerals, and the description thereof will be omitted.

35 is a chute fixing part that is connected to the opening 20, and is a hopper 36
The lower part of the chute 37 connected to is inserted and fitted.
38 is an inclined part located at the bottom of the chute, 39 is an inclined part
An input opening provided at the lower end of 38. The inclined portion 38 is formed so as to cover the upper end surface of the supply body 28. The charging opening is located below the upper end surface of the supply body 28. still
40 is a space on the back surface of the inclined portion 38.

The operation of the above configuration will be described below.

When cutting coffee beans, first use the operation lever 34
Then, the operating body 16 is rotated to move the fixed receiving body 18 up and down to adjust the distance between the fixed tooth 21 and the rotating tooth 10 and set it to a so-called desired roughness, then the hopper 32.
The coffee beans are put into the inside, and the motor 3 is driven to rotate the rotary receiver 9, the rotary teeth 10, and the supply body 28.

At this time, the opening opening from the hopper 36 through the chute 37
Beans passing through 39 and reaching the supply body 28 by its own weight do not hit the upper end surface of the rotating supply body 28, and surely enter the feed groove 29 on the side surface of the supply body 28, and between the teeth 21, 10. Since it is surely supplied and is cut to a predetermined grain size between both teeth 10 and 21, it is bounced outward by the blade 11 of the rotary receiver 9 and taken out from the communication passage 8 via the conduit 7 to the outside. is there.

Therefore, as compared with the conventional case, the feeding of the beans is not adversely obstructed by the supply body 28, and a smooth feeding action is possible.
Further, since the supply body 28 is exposed only by removing the chute 37 during cleaning, it is convenient for cleaning.

As described above, according to the present invention, the charging opening formed in the bottom of the chute is disposed below the upper end surface of the material supply body and is connected to the spiral feed groove of the supply body. It can be smoothly supplied between the teeth and the rotary teeth by the feed groove, and the chute can be manufactured easily and at low cost, and at the time of cleaning, the chute can be removed to expose the feeder that is easily contaminated. It is a good one.

[Brief description of drawings]

FIG. 1 is a sectional view of a crusher for coffee beans and the like showing an embodiment of the present invention, FIG. 2 is a top view of a chute of an embodiment of the present invention, and FIG. 3 is a sectional view of a crusher showing a conventional example. It is a figure. 9 …… Rotating receiver, 10 …… Rotating tooth, 16 …… Operator, 18 ……
Fixed receiver, 21 …… fixed tooth, 28 …… feeder, 37 …… shoot, 39 …… feeding opening.

Claims (1)

[Claims] 1. A bottomed cylindrical fixing member having an insertion hole into which a rotating shaft rotated by a motor is inserted, and a rotary bearing supporting an annular rotating tooth in the fixing member and rotating about the rotating shaft. A body, fixed teeth facing the rotating teeth, an operating body that supports the fixed teeth and can move up and down, a fixed receiving body that is disposed in the operating body, and has an opening in an inner circumference, In a crusher of coffee beans or the like having a supply member that supplies the raw material of coffee beans between the rotating teeth and the fixed teeth by a feed groove that is spirally rotated by a rotating shaft,
A cylindrical chute is disposed above the fixed receiver, an inner bottom surface of the chute has an inclined portion that covers an upper end surface of the supply member, and a lower end of the inclined portion has an upper end surface of the supply member. A crusher for coffee beans or the like, characterized in that it has a charging opening which is connected to the spiral feed groove of the supply member at a lower position.