JPH05100Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an electric grater that grinds and purees various cooking ingredients such as boiled potatoes and boiled eggs.

[Prior art] As a conventional grating device, for example,
As shown in No. 5212, a shaft having straining blades extending in the radial direction at the bottom thereof is rotatably supported in a container equipped with a straining net so as to be movable up and down. The blades are rotated in a predetermined direction via the shaft and pressed against the net, thereby grinding the cooking material put into the container by the cooperation of the blades and the net.

[Problems to be solved by the invention] In the above-mentioned conventional pureeing device, the direction of rotation of the blades is changed in order to efficiently roll and grind the input cooking ingredients between the mesh and the blades. A rising portion is provided at the side end. When a synchronous motor is used as a driving means for the shaft in a grating device having such a structure, the direction of rotation of the blade is determined by the positive or negative component of the AC power frequency when the AC power is turned on. When rotating in the opposite direction to the side on which the rising portion is provided, the cooking material could not be efficiently ground.

[Purpose of the invention] In view of the above-mentioned conventional drawbacks, the purpose of the invention is to
To provide an electric grater capable of efficiently grinding cooking ingredients by making it possible to rotate a pressing means in both forward and reverse directions even when a synchronous motor is used as a driving means for a rotating shaft.

[Means for Solving the Problems] Therefore, the present invention consists of a container body having a net attached to the lower end surface, a rotating shaft rotatably supported within the container body, and a a pressing member having an inclined surface at each opposite rotation direction end and a pressing surface substantially parallel to the mesh body between each inclined surface; a synchronous motor for rotating the pressing member in forward and reverse directions, respectively; Provided below the container body,
An electric grater is constituted by a storage container that houses the cooking material that has passed through the mesh of the net and is ground.

[Operation of the invention] Since the present invention is configured as described above, when the synchronous motor is started, the pressing member changes its rotation direction due to the positive or negative component of the AC power frequency applied to the synchronous motor. It is determined. No matter which direction the pressing member is rotated, since inclined surfaces are formed on each rotation direction side of the pressing member, it is possible to press the input cooking material against the mesh body and grind it. It is. As a result, even when a low-cost synchronous motor whose rotational direction is not constant is used as the driving means, the cooking ingredients can be efficiently ground, and the cost of the apparatus can be reduced.

[Example] An example of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing the outline of the electric grater, FIG. 2 is a central vertical sectional view of the assembled electric grater, and FIG. 3 is a perspective view of the pressing blade. 3, a storage container 5, and a grated part main body 7.

A hollow cylindrical portion 9a that stands upwardly is integrally formed in the center of the upper surface of the case 9 of the drive portion 3, and a large diameter portion 9b is formed at the lower portion of the cylindrical portion 9a. A drive shaft 11 is rotatably supported within the cylindrical portion 9a. A drive pulley 13 is provided at the lower end of the drive shaft 11, and a synchronous electric motor built in the case 9 is connected to the drive pulley 13 via an intermediate gear (none of which is shown). As the synchronous electric motor is driven, the drive shaft 11 is rotated in both forward and reverse directions. This direction of rotation is determined by the positive or negative component of the AC power frequency applied when the synchronous electric motor is powered on. Therefore, the rotation direction of the drive shaft 11 is not always constant. Further, the drive shaft 1
The upper part of the drive shaft 1 is formed to have an irregular cross-sectional shape.
A connecting shaft 19 is inserted into the upper part of 1. A skirt portion 19a is provided at the bottom of the connecting shaft 19, covering the upper opening of the cylindrical portion 9a and hanging downward. Further, the upper part of the connecting shaft 19 is formed to have an irregular cross-sectional shape. In the figure, 20 is a power switch, and the synchronous electric motor is rotationally driven by the power switch 20.

A storage container 5 is attached to the upper surface of the drive section 3. The large diameter portion 9 is provided on the bottom surface of the storage container 5.
A cylindrical portion 5a that rotatably accommodates the connecting shaft 19 is provided with a size that can be inserted into the cylindrical portion 5a. Further, a locking step portion 5b is provided on the upper inner circumferential surface of the storage container 5, and a rotating member 21 is rotatably supported on the cylindrical portion 5a. Further, a notch 5c having a required width in the circumferential direction is formed at the upper end of the container 5 corresponding to the locking step portion 5b, and an operating piece 21a, which will be described later, is projected to the outside through the notch 5c. . The rotating member 21 has a boss 25 in the center into which a bearing member 23 (described later) is rotatably inserted, and the locking step portion 5.
a ring portion 27 supported by b, and a large number of ribs 31 extending in the radial direction while contacting the lower surface of the net body 29, which will be described later, between the boss 25 and the ring portion 27.
It is composed of. still. An operating piece 21a is integrally formed on a part of the outer periphery of the ring portion 27.

The container main body 33 of the grated part main body 7 is formed in a cylindrical shape with openings at the upper and lower ends, and the lower outer periphery of the container main body 33 is formed with a small diameter part 33a to which the mesh body 29 and the fixing ring 35 are locked. has been done. A recess 3 is formed on the outer peripheral surface of the small diameter portion 33a.
3b is formed in the circumferential direction. The container body 3
A net member 29 is attached to the lower end of 3 so as to cover the opening. An opening is formed in the center of the net body 29, and a bearing member 23 that rotatably supports the connecting shaft 19 is attached to the opening.
This bearing member 23 has a through hole 37b in the center,
The hanging portion 2 of the net 29 corresponds to the periphery of the opening on the inner peripheral surface.
9a, and a second bearing part that has a through hole 39b in the center through which the connecting shaft 19 is inserted, and that is inserted into the first bearing part 37 that supports the hanging part 29a. It consists of 39. A protrusion 37 is provided on the inner peripheral surface of the through hole 37b of the first bearing member 37.
A is formed in the circumferential direction, and a recess 39a is formed on the outer peripheral surface of the second bearing member 39, corresponding to the protrusion 37a. By inserting the second bearing member 39 into the first bearing member 37 whose hanging portion 29a is supported on the inner peripheral surface of the through hole 37b, the first and second bearing members 37 and 39 are integrated.
The net body 29 is fixed to the bearing member 23 by partially deforming the net body 29 .

On the other hand, an upright portion 29b is formed on the outer periphery of the net body 29 and rises upward in accordance with the outer periphery of the small diameter portion 33a, and a fixing ring 35 is inserted into the small diameter portion 33a where the upright portion 29b is supported. A protrusion 35a is formed in the inner peripheral surface of the fixing ring 35 in the circumferential direction in correspondence with the recess 33b. and small diameter part 3
By inserting the fixing ring 35 into the upright part 29b supported by the container 3a, a part of the upright part 29b is deformed and the net body 29 is fixed to the container main body 33. Then, the container body 33 to which the fixing ring 35 is attached is inserted into the upper end opening of the storage container 5.

A pressing member 41 is removably attached to the connecting shaft 19, which is inserted through the bearing member 23 and located inside the container body 33. The pressing member 41 includes a hollow rotating shaft 43 that is inserted into the upper part of the connecting shaft 19 and is movable in the axial direction, and a pressing blade 45 that is attached to the lower part of the rotating shaft 43. A support part 47 having a through hole 47a in the center is formed in the rotating shaft 43, and the first pressing shaft 49 is supported movably in the axial direction by the lower end of the through hole 47a on the upper end surface of the connecting shaft 19. has been done. A compression spring 51 is attached between the lower end of the first pressing shaft 49 and the support portion 47, and the elastic force of the compression spring 51 always urges the first pressing shaft 49 upward on the axis. There is. As a result, the pressing member 41 has been moved to an upper position where the pressing blades 45 are separated from the net body 29. The pressing blade 45 has a required thickness and is approximately half the circumference of the net 29, and has a pressing surface 45a parallel to the net 29 on the lower surface of the pressing blade 45. At each end of the pressing blade 45 in the rotational direction, an inclined surface 45b is formed, which stands upward while being inclined from the pressing surface 45a. Further, a flat portion 45c is formed on the upper surface of the pressing blade 45. The rotating shaft 43 is provided with a rectifying blade 46 that stands upward on the axis so as to be able to come into contact with the upper surface of the net body 29, and the cooking material ground by the rectifying plate 46 is placed on the inclined surface 45 of the pressing blade 45.
It is distributed almost uniformly with respect to b.

A lid 53 is detachably attached to the upper opening of the container body 33. A shaft support 53b having a through hole 53a is integrally formed in the center of the lid 53, and a second pressing shaft 55 is supported in the through hole 53a so as to be movable in the axial direction. The second pressing shaft 55
A pressing portion 55a that comes into contact with the upper end of the rotating shaft 43 that has been moved to the upper position is provided at the lower end, and a pressing button 55b is provided at the upper end. Further, a compression spring 57 is provided between the upper surface of the lid 53 and the press button 55b, and the elastic force of the compression spring 57 constantly urges the second press shaft 55 upward. Further, a scraping plate 59 is attached to the bottom surface of the lid 53 so that its lower end abuts the flat portion 45c of the pressing blade 45 that has been moved to the upper position. The scraping plate 59 scrapes off the cooking material that has rested on the flat portion 45c as the pressing blade 45 rotates. Further, the lid 53 is formed with an input port 53c that communicates with the inside, and the cooking material to be ground is input into the container body 33 through the input port 53c.

Next, the operation of the electric grater 1 configured as described above will be explained with reference to FIGS. 4 to 6.

In FIG. 4 showing the depressed state of the rotary shaft 43 and FIGS. 5 and 6 showing the rotating state of the pressing blade 45, the power switch 20 is turned on after the cooking material is put into the container body 33 through the inlet 53c. is ON
When operated, the drive shaft 11 is rotated in a desired direction determined by the positive or negative component of the AC power frequency applied to the synchronous electric motor when the power is turned on. That is, when an AC power source with a positive component is applied to the synchronous electric motor, the drive shaft 11 moves in the direction A of the solid arrow shown in FIGS. 5 and 6, and vice versa, when an AC power source with a negative component is applied. At times, it is rotationally driven in the direction B of the broken line arrow shown in FIGS. 5 and 6. For example, as the drive shaft 11 rotates in the direction indicated by the solid arrow A, the pressing blade 45 is rotated in a desired direction. At this time, most of the cooking ingredients put into the container body 33 are located on the mesh body 29, but some of them are placed on the flat part 45 of the pressing blade 45.
It's on top of c. Further, the pressing surface 45a of the pressing blade 45 is moved to an upper position away from the upper surface of the net body 29 by the elastic force of the compression spring 51. When the pressing blade 45 is rotated in this state, the cooking material on the flat part 45c is scraped onto the net body 29 by the scraping plate 59 that comes into contact with the upper surface of the flat part 45c. In this state, when the press button 55b is pushed down on the axis line against the elastic force of the compression spring 57, the rotating shaft 43 is pushed down on the axis line as the pressing part 55a comes into contact with the upper end of the rotating shaft 43. The pressing surface 45a of the blade 45 is brought into contact with the upper surface of the net body 29. At this time, the rotating shaft 4
3, the first pressing shaft 49 that comes into contact with the upper end surface of the connecting shaft 19 is pushed upward on the axis against the elastic force of the compression spring 51, and the rotation shaft 43 is allowed to move relative to the connecting shaft 19. .

As the rotating shaft 43 rotates, the cooking material on the mesh body 29 is spread almost uniformly over the entire end of the pressing blade 45 in the rotating direction by the rectifying plate 46, and is positioned on the rotating direction side. Slope 4
5b is introduced between the pressing surface 45a and the mesh body 29, and is ground by the cooperation of the pressing surface 45a and the mesh body 29. Then, the ground cooking material passes through the mesh of the mesh body 29 and is stored in the storage container 5.

On the other hand, when the rotating shaft 43 is rotated in the direction of the broken line arrow B shown in FIGS.
While being introduced between the pressing surface 45a and the mesh body 29, it is crushed by the cooperation of the pressing surface 45a and the mesh body 29.

After the grinding operation of the cooking ingredients is completed, the ground cooking ingredients hang down in a state that the meshes of the net body 29 are clogged. In this state, the operation piece 23
When the rotating member 21 is rotated in an appropriate direction by the rotating operation a, the rib 3 comes into contact with the lower surface of the net 29.
1 separates the ground cooking material from the mesh body 29 and drops it into the storage container 5.

In this way, in this embodiment, even if the rotational direction of the drive shaft 11 is not constant, since the inclined surfaces 45b are formed at each rotational direction end of the pressing blade 45,
Even when a low-cost synchronous electric motor whose rotational direction is not constant is used as a drive means, the cooking ingredients put in can be efficiently introduced into the mesh body 29 by the inclined surfaces 45b provided on the respective rotational direction sides. It is possible to grind it.

In the above description, the compression spring 57 is provided between the lid 53 and the press button 55b, and the elastic force of the compression spring 57 urges the second press shaft 55 upward on the axis. It does not constitute the gist of the structure of the present application, and its presence or absence does not limit the technical scope of the present application.

[Effects of the invention] For this reason, the present invention provides an electric motor capable of efficiently grinding cooking materials by making it possible to rotate the pressing means in both forward and reverse directions even when a simultaneous electric motor is used as the driving means for the rotating shaft. It is possible to provide a grating device.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the outline of the electric grater, Fig. 2 is a central vertical sectional view of the assembled electric grater, Fig. 3 is a perspective view of the pressing blade, and Figs. 4 to 6 are the functions. FIG. In the figure, 1 is an electric unloading device, 5 is a storage container, 33 is a container body, 43 is a rotating shaft, 45 is a pressing blade, 45a
is a pressing surface, and 45b is an inclined surface.

Claims (1)

[Claims for Utility Model Registration] A container body having a net attached to the lower end surface, and a rotating shaft rotatably supported within the container body, which is attached to the lower end of the container body, and which is attached to the ends of each of the forward and reverse rotation directions. a pressing member having an inclined surface and a pressing surface substantially parallel to the mesh body between the inclined surfaces; a synchronous motor for rotating the pressing member in forward and reverse directions, provided below the container body; An electric grater comprising: a storage container for storing a cooking material that has passed through a mesh of a mesh body and been ground;