JPS5839159Y2 - Electric grain “ten” crusher - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric grain crusher suitable for sesame grinding, and in detail, it combines a rotary mortar and a rotary mortar holder that connects and holds the rotary mortar so that it can move up and down. It concerns structural improvements.

In this type of crusher, a rotary mill is held in a rotary mill holder fixed to a rotary drive shaft so as to be movable up and down, and the rotary mill is supported by the spring force of a coil spring interposed between the two. This allows the fixed mortar to slide elastically against the fixed mortar superimposed on its upper surface.

Conventionally, as shown in FIG. 5, the coupling structure of a rotary mill and a rotary mill holder is such that a coil spring 53 is fitted into a boss portion 52 protruding from the lower surface of a rotary mill 51 on which a fixed mill 50 is superimposed. The screw body 56 is passed through the through hole 55 formed in the rotary mill holder 54 from the lower surface of the holder 54 in a rattling manner, and
It is customary to prevent the screw body 56 from being removed by a washer 57 screwed into the boss portion 52 and fitted into the screw body 56.

However, with the above configuration, it takes time and effort to assemble the screw body 56 and the washer 57, and since the washer 57 prevents removal, crushed powder of sesame seeds etc. is deposited on the underside of the washer 57 and the rotary mill holder 54. 54a, and in that case, the vertical movement of the rotary mill 51 will rattle, interfering with the preferential treatment effect.

Therefore, this invention inserts a protrusion vertically provided on the lower surface of the rotary mill into the protrusion insertion hole of the rotary mill holder, and locks the locking pawl formed at the tip of the protrusion on the lower surface of the holder. To provide an electric grain crusher which has a simple joint structure between a rotary mill and a rotary mill holder and is less likely to be clogged with crushed powder.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a cylindrical drive unit case, and this case 1 houses a power source battery 2, a motor 3 driven by the battery 2, and the like.

A driving gear 5 is fixed to the rotating shaft 4 of the motor 3, and a rotational driving shaft body 8 is driven through a reduction gear 6 meshed with the driving gear 5 and a driven gear 7 meshed with the reduction gear 6. It is designed to rotate at low speed and high torque.

Reference numerals 9 and 10 are bearing portions of the drive shaft body 8.

If the motor 3 has a high torque, the speed reduction means may be omitted.

Reference numeral 11 denotes a recess forming a grain crushing space formed at the upper end of the drive unit case 1, and the tip of the rotary drive shaft 8 passing through the bottom wall 12 of the recess 11 is inserted into the recess 11. 13 protrudes, and the open end 14 of this recess 11 has a
A cup-shaped container 15 for supplying grains is removably attached.

Reference numeral 16 denotes a circular rotary mill made of synthetic resin or the like disposed in the recess 11, and reference numeral 17 denotes a fixed mill made of synthetic resin or the like which is fixed to the side of the container 15 and superimposed on the upper surface of the rotary mill 16. , respectively have grinding teeth 18 and 19.

20 is a rotary mill holder, which has a cylindrical boss portion 2 formed at the center.
1 is fixed to the tip 13 of the rotational drive shaft 8.

A plurality of protrusions 22 are vertically disposed on the lower surface of the rotary mill 16 and are equally distributed around the central axis P, and each protrusion 22 is inserted into a protrusion insertion hole 22 formed in the rotary mill holder 20. are inserted into each.

A spring member such as a coil spring 24 is loosely fitted into each of the projecting pieces 22, and each coil spring 24 causes the rotary mill 16 to
is elastically supported so that it can move up and down.

At each tip of the projection piece 22 inserted into each of the above-mentioned insertion holes 23,
As clearly shown in FIG. 2, locking pawls 25 are formed, and these locking pawls 25 are locked to the lower surface 20a of the holder 20 with their tips 25a facing radially inward. As a result, the rotating mill 16 rotates via the holder 20 due to the rotation of the rotary drive shaft 8, and comes into elastic contact with the fixed mill 17.

Incidentally, a grain supply field 28 formed on the bottom wall portion 27 of the container 15 is connected to the fixed mortar 17 corresponding to the supply port 26 .
29 is a grain powder shakeout port after preferential treatment formed in the recess 11; 30 is formed on the outer peripheral surface of the holder 20 to feed the grain powder to the shakeout port 29; The sending blade 31 is the cap of the container 15.

In the above configuration, when grains such as sesame are fed from the container 15 through the supply port 26 and the input port 28 between the grinding teeth 18 and 19, the rotary mill 16 is rotated according to the properties of the grains. Because it rotates while moving up and down, both grinding teeth 18 and 19
fU) The above-mentioned sesame seeds are crushed by the crushing action.

The crushed sesame powder falls into the recess 11 and is fed to the shaker port 29 by the feed blade 30.

Here, the protrusion 22 formed on the lower surface of the rotary mill 16 is
When inserted into the protrusion insertion hole 23 formed in the rotary mill holder 20, the distal end locking claw 25 of the protrusion 22 engages with the lower surface of the holder 20 and acts as a preventive action to prevent the rotary mill 16 from being removed. It is easy to assemble the rotary mill holder 20 to the rotary mill holder 20, and the number of parts is reduced because a washer unlike the conventional one is not required. is carried out smoothly.

Furthermore, in this embodiment, since each tip 25a of the locking pawl 25 formed at the tip of the protruding piece 22 is directed radially inward, the vertical movement of the rotary mill 16 in an inclined position is also stable. It is done.

In other words, the locking pieces 25 may be oriented in any direction as long as they have the effect of preventing the rotary mill 16 from being pulled out, but for example, when each tip 25a is oriented radially outward as shown in FIG. , when the rotary mill 16 is tilted, the tip 25 of one protrusion 25
There is a risk that the tip 20a of each locking pawl 25 may hit against the lower surface 20a of the rotary mill holder 20 and prevent the smooth vertical movement of the rotary mill 16.
With a facing inward in the radial direction, the rotary mill 16
Even if the tip 25 of the locking claw 25 is tilted, as shown in FIG.
There is no fear that the part a may hit the lower surface 20a of the rotary mill holder 20.

As described above, this invention involves inserting a protrusion hanging down on the lower surface of the rotary mill into the protrusion insertion hole formed in the rotary mill holder, and engaging the locking claw at the tip of the protrusion with the lower surface of the holder. To provide an electric grain crusher which can easily connect the two by simply stopping the two, and can also maintain smooth vertical movement of the rotary mill.

[Brief explanation of drawings]

Fig. 1 is a cutaway front view showing an example of an electric grain crusher according to this invention, Fig. 2 is an enlarged cross-sectional view of the main parts, and Figs. 3 and 4 show the tip of the locking pawl. FIG. 5, which is an explanatory diagram of the setting direction, is a sectional view of a main part showing a conventional example. 16...Rotary mill, 20...Rotary mill holder, 20a...Lower surface, 22...Protrusion piece, 23...Protrusion piece Insertion hole, 24... Spring member, 25... Locking claw, 25 a...
Tip, P... Central axis.

Claims (2)

[Scope of utility model registration request] (1) A plurality of protrusions 22 are vertically arranged on the lower surface of the rotary mill 16 and are equally distributed around the central axis P of the rotary mill 16, and each of the protrusions 22 is inserted into the rotary mill holder 20 through protrusion insertion. (L23 is formed, and a spring member 24 that elastically supports the rotary mill 16 in a vertically movable manner is interposed between the rotary mill 16 and the rotary mill holder 20, and each projection piece 22 is inserted into each of the insertion holes 23. An electric grain crusher in which a locking pawl 25 that locks on the lower surface 20a of the rotary mortar holder 20 is integrally formed at the tip of the rotary mortar holder 20. (2) An electric grain crusher in which the tips 25a of each of the locking claws 25 are directed inward in the radial direction of the rotary mill 16.