JP2019146749A - Cooking machine - Google Patents

Abstract

To provide a cooking machine which is small/light weight/inexpensive/power-saving, and reversely rotates upper and lower two rotors coaxially.SOLUTION: A cooking machine 100 which comprises an upper rotor 4 and a lower rotor 5 rotating in a container into which food materials are put includes: an inner shaft 6 to which the upper rotor 4 is fastened; an outer shaft 7 to which the lower rotor 5 is fastened and into which the inner shaft 6 penetrates; an external gear G1 coaxial with the inner shaft 6 and provided in the inner shaft 6; an internal gear G3 coaxial with the outer shaft 7 and provided in the outer shaft 7; two or more planet gears G2 engaged with the internal gear with the external gear G1 as the sun gear; and a drive part 9 for rotatably driving the upper rotor 4 or the lower rotor 5.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cooking machine. Specifically, the present invention relates to a cooking machine in which a first rotating body and a second rotating body rotating in a container rotate coaxially.

As in the mixers disclosed in Patent Documents 1 and 2, a cooking device is known in which a blade rotates in a container in which ingredients are put, and the ingredients are pulverized, mixed, and stirred.
Since these cookers are usually used in a kitchen, they are appropriately miniaturized within the range of use in the kitchen.

  On the other hand, portable portable mixers have not been commercialized yet. The inventor can easily make fresh juice using bananas, for example, when exercising, commuting, eating outdoors, etc. I thought.

JP-A-56-1124 JP2013-22286A Japanese Utility Model Publication No. 57-45834

  Therefore, we aimed to develop a portable cooking machine. In order to realize a portable cooking machine, it is essential to have a small size, light weight, and power saving that are incomparable to household cooking machines.

  Moreover, since a large drive device cannot be used, there was a concern about insufficient rotation of the blade. Therefore, the inventor has conceived that the upper and lower blades are coaxially rotated in the reverse direction. As a result, the relative rotational speed is increased, and the same effect as that obtained by increasing the rotational speed of the motor can be obtained, and the cutting effect and the like can be increased. Further, the cutting force is remarkably improved by the scissors effect, so that the cooking time can be shortened and the motor load can be reduced.

On the other hand, FIG. 1 of Patent Document 3 describes a kneader that rotates two upper and lower blades coaxially and reversely in a basket. The kneader's coaxial mechanism for rotating them in the reverse direction uses four bevel gears to slowly rotate the upper and lower blades at the same rotational speed through the speed reducer. Thus, a complicated configuration is required to rotate the two upper and lower blades coaxially and in the reverse direction. However, such a complicated configuration cannot be adopted as a portable cooking machine.
It is an object of the present invention to provide a cooking machine that rotates two upper and lower rotating bodies coaxially and reversely with each other with small size, light weight, low cost, and power saving.

  In order to achieve the above object, a cooking machine of the present invention is a cooking machine having an upper rotating body and a lower rotating body that rotate in a container in which ingredients are put, and an inner shaft to which the upper rotating body is fixed. An outer shaft to which the lower rotating body is fixed and the inner shaft passes therethrough, an outer gear provided coaxially with the inner shaft and provided on the inner shaft, and an inner gear provided coaxially with the outer shaft and provided on the outer shaft. And two or more planetary gears that mesh with the internal gear using the external gear as a sun gear, and a drive unit that drives the upper rotating body or the lower rotating body.

  Thereby, since it is a simple structure which only puts two or more spur gears between the inner and outer coaxials, a small, light and inexpensive cooker can be provided. In addition, with this configuration, the upper and lower two rotating bodies are rotated coaxially and reversely to each other, so that the flow of food can be reduced, and the crushing power, mixing power, stirring power, kneading power, etc. of the food are improved and cooking is performed. Time saving and power saving. Further, the ribs of the container for reducing the flow of food can be reduced or deleted.

Moreover, in the cooking machine of this invention, it is preferable that the said upper rotary body and the said lower rotary body are blades. Thereby, since the upper and lower blades rotate in reverse, the food material is cut like scissors as viewed in the axial direction, so that the pulverizing force is improved.
Moreover, in the cooking machine of this invention, it is preferable that the front-end | tip of the said upper rotary body is located in the center side of a rotating shaft rather than the front-end | tip of the said lower rotary body.

  As described above, when viewed in the axial direction, the reverse rotation region of the lower rotator is located outside the rotation region of the upper rotator. Thereby, since a foodstuff falls also to the area | region of a lower rotary body, two rotary bodies can grind | pulverize efficiently.

It is a section perspective view showing the important section of the cooking machine of the embodiment of the present invention. It is a perspective view which shows the planetary gear mechanism of the cooking machine of embodiment. It is a section front view showing the important section of the cooking machine of an embodiment. 4A is a cross-sectional view taken along the line IVA-IVA in FIG. 3, and FIG. 4B is a cross-sectional view taken along the line IVB-IVB in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the embodiments and drawings. However, the embodiments shown below are not intended to limit the present invention to those described herein, and The invention can be equally applied to various modifications without departing from the technical idea shown in the claims. In addition, in each drawing used for the description in this specification, in order to make each member a size that can be recognized on the drawing, each member is displayed with a different scale, and is not necessarily actual. It is not displayed in proportion to the dimensions.

[Embodiment]
The cooking machine 100 of embodiment of this invention is demonstrated using FIGS. 1-4. 1 is a partial cross-sectional view showing a main part of the cooking machine 100, FIG. 2 is a perspective view showing a planetary gear mechanism, FIG. 3 is a cross-sectional front view showing the main part of the cooking machine 100, and FIG. 4 is a cross-sectional view taken along the line IVA-IVA in FIG. 3, and FIG. 4B is a cross-sectional view taken along the line IVB-IVB in FIG.

  The cooking machine 100 includes, as main components, a container 1 in which ingredients are put, an upper lid 2 that is a lid of the container 1, a bottom lid 3 that is attached to the bottom of the container 1, and an upper rotating body that rotates within the container 1. 4, a lower rotating body 5 disposed below the upper rotating body 4 and rotating in the container 1, an inner shaft 6 to which the upper rotating body 4 is fixed, and an outer shaft 7 to which the lower rotating body 5 is fixed And an outer gear G1 provided on the inner shaft 6 coaxially with the inner shaft 6, four planetary gears G2 meshing with the outer gear G1 using the outer gear G1 as a sun gear, and meshing with the four planetary gears G2. An inner gear G3 provided coaxially with the outer shaft 7 and provided on the outer shaft 7, a carrier 8 that pivotally supports the four planetary gears G2, a drive unit 9 that rotationally drives the upper rotating body 4, and first to third It consists of fasteners B1-B3.

  The container 1, the upper lid 2, and the bottom lid 3 are injection-molded synthetic resins. As shown in FIGS. 1, 3, and 4, the appearance of the cooking machine 100 is formed of a container 1, an upper lid 2, and a bottom lid 3, and has a compact cylindrical shape.

  The drive unit 9 includes a motor 91 having at least the inner shaft 6 as a rotation axis, a rechargeable dry battery 92, and a USB terminal 93 for charging. The drive unit 9 is accommodated in the bottom lid 3 and attached to the container 1. At this time, the inner shaft 6 that is the rotation shaft of the motor 91 is inserted into the center of the container 1. The bottom cover 3 facing the USB terminal 93 is provided with an opening so that the rechargeable dry battery 92 can be charged. In addition, the drive part 9 may provide the alerting | reporting part (for example, LED) for charge, and may be made to alert | report full charge or a battery exhaustion.

  Next, the planetary gear mechanism of this embodiment will be described. As shown in FIGS. 2 and 4B, the external gear G <b> 1 serving as the sun gear has a pin groove G <b> 11 and is fixed to the key groove 61 of the inner shaft 6, which is the rotation shaft of the motor 91, with the key K. Four planetary gears G2 mesh with the external gear G1 in four directions, and an internal gear G3 having the same axis as the external gear G1 meshes with the outside of the four planetary gears G2.

  In FIG. 4B, P1, P2, and P3 indicate the pitch circles of the external gear G1, the planetary gear G2, and the internal gear G3, respectively, for reference. The internal gear G3 is formed on the outer shaft 7. Further, the four planetary gears G2 are rotatably supported on the shaft 81 of the carrier 8. The carrier 8 is screwed to the bottom of the container 1 by the third fastener B3.

  With such a configuration, for example, when the inner shaft 6 of the motor 91 rotates clockwise as viewed from FIG. 4B, the outer gear G1 rotates clockwise, and the four planetary gears G2 rotate counterclockwise. Since the shaft 81 on which the four planetary gears G2 are pivotally supported is fixed to the container 1, the internal gear G3 rotates counterclockwise. If the carrier 8 is not fixed to the container 1, the carrier 8 rotates at a reduced speed in the clockwise direction.

  As shown in FIG. 3, the inner shaft 6 penetrates the outer shaft 7, and the upper rotating body 4 is fixed to the tip of the inner shaft 6 with a first fastener B <b> 1. As shown in FIGS. 1, 3, and 4 </ b> A, the upper rotating body 4 includes an upper first cutter 41 and a lower second cutter 42. The first cutter 41 includes a blade portion 41a facing downward at both ends. Moreover, the 2nd cutter 42 is equipped with the upward blade part 42a at both ends. The first cutter 41 and the second cutter 42 are fixed to the inner shaft 6 so as to be orthogonal to each other.

  The lower rotating body 5 is fixed to the outer shaft 7 with a total of four second fasteners B2. As shown in FIGS. 1, 3, and 4 </ b> A, the lower rotating body 5 includes an upper first cutter 51 and a lower second cutter 52. The first cutter 51 includes an upward blade portion 51a at both ends. Moreover, the 2nd cutter 52 is equipped with the downward blade part 52a at both ends. The first cutter 51 and the second cutter 52 are fixed to the outer shaft 7 so as to be orthogonal to each other.

  When the motor 91 rotates, the outer shaft 7 rotates in the reverse direction at a lower rotational speed than the inner shaft 6. Since the outer shaft 7 has a lower rotational speed than the inner shaft 6, the dimensions of the blade portions 41 a and 42 a of the upper rotating body 4 are smaller than the dimensions of the blade portions 51 a and 52 a of the lower rotating body 5. There is no big difference. Moreover, although the blade parts 41a and 42a of the upper rotary body 4 and the blade parts 51a and 52a of the lower rotary body 5 are spaced apart, they work so as to sandwich the food.

  If the upper rotating body 4 and the lower rotating body 5 rotate in the same direction, the food material rotates at a high speed, and the upper rotating body 4 and the lower rotating body 5 rotate so as to follow the rotating food material. become. Therefore, the crushing force and mixing force by the rotating body are reduced. On the other hand, since the upper rotary body 4 and the lower rotary body 5 rotate in the opposite directions in the cooking machine 100 of the present embodiment, the food is likely to stay. Thereby, the direction which follows the foodstuff of the upper rotary body 4 and the lower rotary body 5 and the direction which goes to the direction improve markedly. Further, since the rotation of the food is slowed, it is possible to eliminate the ribs provided inside the container of a general mixer in order to slow the rotation of the food. And if rib formation becomes unnecessary, the container 1 will become easy to wash.

  4A, the tip 4a of the upper rotating body 4 is located closer to the center of the rotation shaft than the tip 5a of the lower rotating body 5. As described above, the blades of the lower rotator 5 have the reverse rotation regions of the blade portions 51a and 52a of the lower rotator 5 outside the rotation regions of the blade portions 41a and 42a of the upper rotator 4 as viewed in the axial direction. Ingredients also fall on the portions 51a and 52a. Therefore, the upper rotator 4 and the lower rotator 5 can efficiently grind the food material. Moreover, since the rotational force of the blade parts 51a and 52a of the lower rotator 5 is easily transmitted to the upper layer of the foodstuff, the effect of pulverization and mixing is increased.

  Since the cooking machine 100 of the present embodiment uses a planetary gear mechanism, the mechanism for rotating the upper rotating body 4 and the lower rotating body 5 coaxially is small and lightweight. And since the rechargeable drive part 9 is provided, there is no power cord and accommodation and carrying are easy. In particular, portable portable mixers and small juicers have not yet been commercialized, and this embodiment enables this.

In addition, the vertical direction of the blade parts 41a, 42a, 51a, 52a of the upper rotating body 4 and the lower rotating body 5 of the present embodiment can be arbitrarily changed in design. However, it is preferable that at least one of the blade portions 51 a and 52 a of the lower rotating body 5 is directed downward because of the food at the bottom of the container 1.
Moreover, although the planetary gear G2 of this embodiment was four, it is not limited to four.
Moreover, although the upper rotating body 4 and the lower rotating body 5 of this embodiment were blades, it can be used as a blade to make the cooking machine 100 dedicated to mixing.

100: Cooking machine 1: Container 4: Upper rotating body 41: First cutter (first rotating body)
42: Second cutter (first rotating body)
5: Lower rotating body 51: First cutter (second rotating body)
52: Second cutter (second rotating body)
6: Inner shaft 7: Outer shaft 8: Carrier G1: External gear G2: Planetary gear G3: Internal gear 9: Drive unit 91: Motor 92: Rechargeable battery 93: Charging terminal

Claims (3)

A cooking machine having an upper rotating body and a lower rotating body that rotate in a container in which ingredients are put,
An inner shaft to which the upper rotating body is fixed;
An outer shaft to which the lower rotating body is fixed and the inner shaft penetrates;
An external gear coaxial with the inner shaft and provided on the inner shaft;
An internal gear coaxial with the outer shaft and provided on the outer shaft;
Two or more planetary gears meshing with the internal gear as the external gear as a sun gear;
A drive unit for driving the upper rotating body or the lower rotating body;
A cooking machine comprising:   The cooking machine according to claim 1, wherein the upper rotating body and the lower rotating body are blades.   The cooking machine according to claim 2, wherein the tip of the upper rotating body is located closer to the center of the rotation shaft than the tip of the lower rotating body.