JPS6217005Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a grinder that uses a cutter driven by an electric motor to finely grind coffee beans or various spices in a short time. The purpose of this is to prevent part of the finely pulverized material from getting into the gap between the cutter base and the container that can be freely fitted inside, making it difficult to separate the cutter stand from the container.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is a cutter, which is fixed to one end of the shaft 2. 3 is an oilless bearing that rotatably holds the shaft 2. Reference numeral 4 denotes a metal fitting that is inserted and fixed to the cutter stand 5, to which the oilless bearing 3 is fixed and a felt 6 is attached. Reference numeral 7 denotes a container, and is configured such that a protrusion 9 provided on the outer periphery of the cutter base 5 is screwed into a protrusion 8 provided inside the container. An upper connector 10 is screwed onto the shaft 2, and is fitted with a lower connector 13 screwed onto the shaft of an electric motor 12 built into the main body 11, thereby transmitting the rotation of the electric motor 12 to the cutter 1. A cylindrical wall 14 that fits inside the inner periphery of the container 7 is formed on the outer periphery of the cutter stand 5, and a plurality of protruding ribs 15 are provided on the lower outer periphery of the cylindrical wall 14.

Next, the operation and operation of the crusher configured as described above will be explained. First, the material to be crushed is placed in the container 7. Next, the cutter stand 5 is set in the container 7 by screwing together the projection 9 provided on the cutter stand 5 with the protrusion 8 provided on the container 7. After fitting the container 7 to the main body 11, when the electric motor 12 is energized, the electric motor 12 rotates, and the rotation is transmitted through the path of the lower connector 13, the upper connector 10, the shaft 2, and the cutter 1. By rotating, the material to be crushed is finely crushed.

Here, when the material to be crushed is finely pulverized by the cutter 1, a minute amount of the finely pulverized material is transferred to the cutter 1.
If the gap 16 between the container 7 and the cylindrical wall 14 formed on the cutter stand 5 is small, the wind caused by the rotation of the cutter stand 5 may enter the gap 16 between the container 7 and the cutter stand 5.
separation becomes difficult. Also, container 7 and cutter stand 5
If the gap between the container 7 and the cylindrical wall 14 is made larger, even if some crushed material gets into the gap 16 between the container 7 and the cylindrical wall 14, it will not affect the separation of the container 7 and the cutter base 5, but since the gap 16 is large, When the cutter stand 5 is screwed onto the container 7, it is difficult to align the center of the container 7 with the center of the cutter stand 5.
Therefore, the container 7 is attached to the main body 11 and the electric motor 1
When the cutter 2 is rotated, the rotation of the electric motor 12 is transmitted to the shaft 2 with the center of the axis of the electric motor 12 and the shaft 2 to which the cutter 1 is fixed being misaligned, which causes the container 7 to vibrate significantly. However, cutter stand 5
A plurality of protruding ribs 15 are provided on the lower outer periphery of the cylindrical portion provided in the
Since the ribs 15 are provided with the inner wall of the container 7, not only can a uniform gap 16 be reliably provided between the container 7 and the cylindrical portion 14, but also a gap between the ribs 15 and the inner wall of the container 7 can be ensured. Even if the gap 16 is made smaller,
Since the contact area between the tip of the rib 15 and the container 7 is small, the contact resistance is small, and the container 7 and the cutter stand 5 can be easily separated. Furthermore, by providing the rib 15, the gap between the cutter base 5 and the container 7 can be reduced, the wobbling between the cutter base 5 and the container 7 can be reduced, and the centers of the two can be reliably aligned, and the rotation of the electric motor 12 can be can be smoothly transmitted to shaft 2.

As described above, the present invention not only allows the container and cutter stand to be easily separated even if some of the finely ground material in the container enters the gap between the container and the cutter stand, but also has many other excellent effects. It is something that can be demonstrated.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a perspective view of the cutter stand, and FIG. 3 is a sectional view of a main part showing the fitted state of the container and the cutter stand. 1...Cutter, 7...Container, 12...Electric motor, 14...Cylindrical wall, 15...Protruding rib.

Claims (1)

[Scope of utility model registration request] A cutter that is driven by the rotation of an electric motor,
A cutter stand that rotatably holds the cutter, and a container into which the cutter stand is removably fitted, and a cylindrical wall that fits inside the inner periphery of the container is formed on the outer periphery of the cutter stand. A crusher characterized in that a plurality of protruding ribs are provided on the lower outer periphery of the shaped wall.