JP3061746U - Rice mill - Google Patents

Abstract

(57) [Summary] [Problem] To enable fine adjustment of rice milling degree according to user's preference and the like. SOLUTION: Rice grains are stored in a rice milling container 16, and rice milling degree setting means 35 is operated to set an arbitrary rice milling degree. And
By driving the electric motor 5, the rice-milling blade body 23 is rotated. Then, the rice grains are rubbed against each other or between the rice grains and the rice polishing container 16 to perform the rice polishing. At this time, rice milling container
The milling degree of the rice grains stored in 16 can be set substantially steplessly by the milling degree setting means 35. For this reason, it is possible to finely adjust the degree of milling to better match the taste of the user.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a rice mill for polishing brown rice, and more particularly to a small and light rice mill suitable for household use.

[0002]

[Problems to be solved by the invention]

 Conventionally, as this type of rice milling machine, as described in, for example, Japanese Utility Model Laid-Open No. 57-103130, the rice-milling wing and a screw conveyor are integrally rotated and driven by a motor, and the rice is milled from a tank by a screw conveyor. It is known that the refined rice transferred to the bran removal chamber is polished using the centrifugal force of the polished rice blade to separate the bran from the polished rice. In addition, although not a rice mill, as described in Japanese Utility Model Laid-Open No. 1-25328, soft grains such as sesame and millet are charged into a mixing tank, which is a container, and a scraper and rotating blades are set for a predetermined time. Relatively small peelers have been proposed that remove the epidermis of the grain by rotating them in opposite directions.

[0003] However, the former method is suitable for polishing a large amount of refined rice, but it is not suitable for owning and polishing rice in a general household because the entire apparatus becomes large. . In the latter case, when applied to rice, it is desirable that the rice milling degree can be adjusted, but human taste is subtle and it is not enough to set the rice milling degree step by step. .

An object of the present invention is to solve the above problems and to provide a household rice polishing machine capable of finely adjusting the rice polishing degree according to the user's preference and the like.

[0005]

[Means for Solving the Problems]

 The rice mill according to claim 1 of the present invention has a rice mill body having a built-in electric motor, a bran receptacle detachably provided to the rice mill body, a side wall and / or a bottom formed in a net shape, and A rice mill container removably housed in a bran receptacle, a rice milling blade provided in the rice mill container and rotating with the rotation of the electric motor, and a rice milling degree setting means capable of setting the milling milllessly And control means for controlling the drive of the electric motor, wherein the drive of the electric motor can be substantially steplessly controlled by the operation of the rice polishing degree setting means.

[0006] With the above configuration, rice grains are stored in a rice milling container, the rice milling degree is set by operating a rice milling degree setting means, and the rice milling blades are rotated by driving an electric motor. Rice polishing is performed by rubbing the rice grains and the rice polishing container. At this time, the milling degree of the rice grains stored in the milling container can be set substantially steplessly by the milling degree setting means, and it is possible to finely adjust the milling degree to better match the taste of the user.

[0007] The rice polishing apparatus according to a second aspect of the present invention is characterized in that, in addition to the configuration of the first aspect, the rice polishing degree setting means holds the set position after the operation.

According to the above configuration, even after operating the milling degree setting means, the milling degree setting means keeps the set position, so that the next milling degree can be maintained at the same milling degree as the previous time without setting the milling degree each time. It is possible to mill rice. Therefore, it is not necessary to provide a dedicated storage means for the degree of rice polishing.

A rice mill according to a third aspect of the present invention includes, in addition to the configuration of the first aspect, a remaining time display means for displaying a remaining time until the end of rice polishing.

[0010] According to the above configuration, the user can immediately confirm the remaining time until finishing the rice polishing by the remaining time display means after setting the rice polishing degree.

[0011] A rice polishing apparatus according to a fourth aspect of the present invention includes, in addition to the configuration of the first aspect, a rice milling degree display means for displaying the rice milling degree according to the set value of the rice milling degree setting means.

[0012] According to the above configuration, when setting the milling degree by the milling degree setting means, the user can check the milling degree finely by the milling degree display means.

[0013]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. Reference numeral 1 denotes a main body case as a rice polisher main body that forms an outer shell of the rice polisher. The main body case 1 is formed with a cylindrical concave portion 3, and a through hole 3 </ b> A is formed in the center of the bottom of the concave portion 3. A cylindrical portion 3B having an open upper portion is formed around the through hole 3A. A plate-like frame 4 is mounted and fixed between the main body case 1 and the bottom cover 2, and an electric motor 5 is mounted downward on one upper surface of the frame 4. The rotating shaft 6 of the electric motor 5 projects downward through the frame 4, and a pulley 7 is attached to a tip of the rotating shaft 6.

On the other side of the frame 4, a concave bearing fitting portion 4 A which is lowered downward is formed. A bearing case 8 is provided on the upper surface of the frame 4 so as to cover the bearing fitting portion 4A. A convex bearing fitting portion 8A protruding upward is formed at the upper center of the bearing case 8. A bearing 9 is fitted and fixed in the bearing fitting portion 8A, and another bearing 10 is fitted in the bearing fitting portion 4A. Is fitted and fixed. The drive shaft 11 penetrating the frame 4 is rotatably supported by the pair of upper and lower bearings 9 and 10 such that the center axis thereof is in the vertical direction. The upper end of the drive shaft 11 is disposed in the cylindrical portion 3B via the through hole 3A, and the lower connector 12 is fixed thereto. The lower end of the drive shaft 11 is below the frame 4, and another pulley 13, which forms a pair with the pulley 7, is attached and fixed thereto. An endless drive belt 14 is mounted between the pulleys 7 and 13 so that the rotational force from the electric motor 5 is transmitted to the drive shaft 11.

A bran receiver 15 for receiving the bran scraped by the milled rice is removably inserted into the recess 3. A through-hole 15A is formed at the bottom of the bran receptacle 15 coaxially with the through-hole 3A of the concave portion 3, and a cylindrical portion 15B is formed to cover the cylindrical portion 3B of the concave portion 3. ing. The bran receptacle 15 is provided with a bottomed cylindrical rice-milling container 16 for accommodating brown rice as refined rice, which is detachably attached thereto. This rice milling container 16 is formed in a wire mesh shape from the side periphery to the bottom periphery, and a convex bearing cylinder 17 projecting upward is formed in the center of the bottom. A shaft hole 18 is formed at the top of the tip of the part 17. The driven shaft 19 penetrating the shaft hole 18 is rotatably supported so that the center axis thereof is in the vertical direction. An upper connector 20 that engages with the lower connector 12 is attached and fixed to the lower end of the driven shaft 19. The lower connector 12 and the upper connector 20 form a coupling 21 that transmits the rotation of the drive shaft 11 to the driven shaft 19 with the rice milling container 16 mounted in the recess 3.

Above the driven shaft 19, a milled rice blade body 23 provided with milled rice blades 22 is detachably attached. The rice polishing blades 22 are provided inside the rice polishing container 16 and extend radially around the driven shaft 19 as a center. When the milling container 16 is mounted in the recess 3, the driven shaft 19 is positioned coaxially with the drive shaft 11, and the lower connector 12 and the upper connector 20 are engaged and connected. The non-driven shaft 19 and, consequently, the milled blade 23 rotate. Reference numeral 24 denotes a lid which is detachably provided so as to cover the upper portions of the concave portion 3, the bran receiver 15 and the rice milling container 16. The lid 24 is provided with a transparent window 25 facing the upper opening of the rice polishing container 16. Reference numeral 26 denotes an operation panel as operation means including various switches, and a circuit board 27 is mounted inside the operation panel 26. 28 is a rubber leg, and 29 is a cord reel of the power cord 30.

Next, the electrical configuration of the present embodiment will be described with reference to the block diagram of FIG. In the figure, reference numeral 31 denotes a power supply circuit, which performs full-wave rectification of an AC current from a 100 V AC commercial power supply not shown. The current that has been full-wave rectified by the power supply circuit 31 is supplied to the electric motor 5 via the drive circuit 32. The drive circuit 32 is connected to a control circuit 33 that controls the energization of the motor 5. The control circuit 33 is constituted by a microcomputer or the like, and sets a rice polishing switch 34 which is an operation means for instructing the start and stop of driving of the electric motor 5 and a degree of scraping the surface of the rice to be purified. Milling degree setting means 35 for milling, and milling amount setting means 36 for setting the amount of milled rice 1 switch 37, 2 switch 38, 3 switch 39, 4 switch 40 (see FIG. 2) Are connected to each other. The rice polishing degree setting means 35 is constituted by a variable resistor 48 of a slide volume as described later, and the control circuit 33 supplies a voltage obtained by the rice polishing degree setting means 35 to a control signal. An A / D conversion unit 41 for performing the processing is provided. Further, 42 is an LED provided corresponding to each of the switches 37 to 40 constituting the milling switch 34 and the milling amount setting means 36, and 43 is a remaining time display means for displaying the remaining time until the milling is completed. It is a display that also serves as a rice-grinding degree display means for displaying the rice-grinding degree.

Returning to FIGS. 1 and 2, the configuration of the operation panel 26 provided on the upper front side of the main body case 1 will be described. The operation panel 26 includes various operation means such as switches 37 to 40 constituting a rice polishing switch 34, rice polishing degree setting means 35, and rice polishing amount setting means 36, as well as an LED 42 and a display 43 such as an LCD. Is provided. Among these, the milling degree setting means 35 includes a knob 46 slidably provided at the front end of the main body case 1 and a print display indicating the degree of milling degree printed and formed corresponding to the movable range of the knob 46. It comprises a portion 47 and a variable resistor 48 inside the main body case 1 whose resistance value changes according to the position of the knob 46. When the knob 46 is moved to a set position by operating the knob 46, the set position is maintained as long as the knob 46 is not moved to another position next time. That is, the rice polishing degree setting means 35 is mechanically configured to hold the set position after the operation. Then, the knob 46 can be moved continuously, not stepwise, over its movable range, whereby the milling degree of the rice grains stored in the milling vessel 15 can be set substantially steplessly. The circuit board 27 is provided with various operation means and display means other than the rice polishing degree setting means 35.

Next, the operation of the above configuration will be described with reference to the flowchart of FIG. First, with the lid 24 opened, the rice bran receiver 15 and the rice milling container 16 are mounted in the recess 3, and the milled rice blade 23 is attached to the driven shaft 19 protruding into the rice milling container 16. A predetermined amount of brown rice is put in. Then, the upper opening of the recess 3 is closed by the lid 24, and the power is turned on (step S1). In the next step S2, the amount (total number) of brown rice stored in the milled rice container 16 is controlled by operating one corresponding switch among the one-to-one switch 37 to the four-to-one switch 40 constituting the milled rice amount setting means 36. Specified by. In response to this, the control circuit 33 reads data on the drive time of the electric motor 5 and the power supplied to the electric motor 5.

Specifically, when the one-piece switch 37 is operated in step S3, the driving time t of the electric motor 5 is specified to be 100 seconds in the next step S4, and the full-wave rectification is performed in the power supply circuit 31. In each of the DC power waves, the power supply ratio s is specified as 7/10 so that the electric power is supplied to the motor 5 at a rate of 7 out of 10 waves. This setting is made because, when only a small amount of brown rice is contained in the milling vessel 16 and the milling blade 23 is rotated, the resistance of the milling blade 23 to each rice grain is small. The reason is that the rotation of the milled rice blade body 23 with respect to the milled rice speed becomes too high, and the brown rice may be broken and chipped, or the temperature of the rice grains may be increased, and the taste may be reduced.

When the two-way switch 38 is operated in step S5, the driving time t of the electric motor 5 is specified to be 160 seconds in the next step S6, and the DC power of the full-wave rectified by the power supply circuit 31 is set. In each wave, the power supply ratio s is specified as 8/10 so that power is supplied to the motor 5 at a rate of 8 out of 10 waves. Further, when the three-way switch 39 is operated in step S7, the driving time t of the electric motor 5 is specified to be 220 seconds in the next step S8, and each wave of the DC power which is full-wave rectified by the power supply circuit 31 is set. Among them, the power supply ratio s is specified as 9/10 so that power is supplied to the motor 5 at a rate of 9 out of 10 waves. Further, when the four-way switch 40 is operated, the drive time t of the motor 5 is specified to be 280 seconds in step S9, and all the waves of the DC power that is full-wave rectified by the power supply circuit 31 are supplied to the motor 5. To supply the power, the power supply ratio s 2 is specified as 1.

In this way, after the control circuit 33 specifies the drive time t of the electric motor 5 and the power supply ratio s according to the amount of brown rice stored in the rice milling container 16, the knob 46 of the rice milling degree setting means 35 is appropriately adjusted. By operating, for example, the milling degree x such as white rice or 7-minute milling is designated (step S10). At the same time, the milling degree x is displayed on the display 43, so that the milling degree can be set more finely than set by the print display unit 47. The milling degree x is input to the control circuit 33 by milling degree setting means 35 comprising a variable resistor 48 such as a slide volume. That is, the milling degree x is calculated by comparing the reference value of the voltage applied to both ends of the variable resistor 48 with the voltage at the position designated by the variable resistor, and performing AD conversion in the AD converter 41, thereby obtaining a control circuit 33. (Step S11). Then, the control circuit 33 determines the driving time t ′ = t × f (x) of the electric motor 5 and the supply of electric power to the electric motor 5 from the numerical value (0 ≦ x ≦ 1) of the milling degree x calculated in step S11. The ratio s ′ (= s × g (x)) is calculated (step S12). Then, after the elapse of the predetermined time, the display on the display 43 is switched to the drive time t 'of the electric motor 5, that is, the display of the remaining time until the end of rice polishing (step S13). Although the milling degree x is converted into 256 steps depending on the resolution of the AD converter 41, it can be considered that the drive of the electric motor 5 is substantially steplessly controlled.

After calculating the power supply ratio s ′ to the electric motor 5 and the driving time t ′ of the electric motor 5 in consideration of the milling degree x, the rice polishing switch 34 in step S14 is operated. In the next step S15, the motor 5 is driven via the drive circuit 32 by the control signal from the control circuit 33. Then, the driving force of the electric motor 5 rotates the milling blade 23 from the pulley 17 through the driving belt 14, the pulley 13, the driving shaft 11, the coupling 21, and the driven shaft 19. Then, by rotating the polished rice blades 23, the brown rice in the polished rice container 16 rubs against each other, or the polished rice and the polished rice container 16 rub together, whereby the brown rice is polished. At this time, the bran scraped from the brown rice is discharged into the bran receiver 15 from around the side wall and the bottom of the milled rice container 16 formed in a wire mesh shape. Also, the display on the display 43 changes every moment.

Thereafter, in step S 16, when the designated drive time t ′ has elapsed, the control circuit 33 stops supplying the control signal to the drive circuit 32. Thus, the rotation of the electric motor 5 and the milled blade 23 is stopped (step S17), and the display 43 also indicates that the remaining time has become zero. Thus, the rice polishing is completed (step S18). In addition, since the milling degree setting means 35 holds the setting position unless the knob 46 is moved, the milling is performed at the same milling degree as the previous milling without resetting the milling degree at the next milling. Can do it.

As described above, in the present embodiment, in accordance with the first aspect, the main body case 1 as the rice polishing machine main body in which the electric motor 5 is built, and the bran receiving container 15 detachably provided to the main body case 1. And a rice milling vessel 16 having a side wall and / or a bottom formed in a net shape and removably attached to a bran receptacle 15, provided in the rice milling vessel 16, and rotated with the rotation of the electric motor 5. A rice milling blade body 23, a rice milling degree setting means 35 capable of setting the milling degree substantially steplessly, and a control circuit 33 as a control means for driving and controlling the electric motor 5; The operation of the motor 5 can be substantially steplessly controlled by the operation.

In this case, rice grains are stored in the rice milling container 16, the rice milling degree setting means 35 is operated to set the rice milling degree to an arbitrary level, and the electric motor 5 is driven to rotate the rice milling blades 23. Milling is performed by rubbing each other or the rice grains with the milling container 16. At this time, the milling degree of the rice grains stored in the milling container 16 can be set substantially steplessly by the milling degree setting means 35, and it is possible to finely adjust the milling degree to better match the taste of the user. become.

Further, in the present embodiment, in accordance with claim 2, the rice polishing degree setting means 35 is configured to hold the set position after the operation. In this case, even after operating the rice milling degree setting means 35, the rice milling degree setting means 35 retains the set position, so that the next rice milling is performed at the same rice milling degree as last time without setting the rice milling degree each time. Can be performed. For this reason, it is possible to save the trouble of providing a dedicated storage means for the degree of rice polishing. In the embodiment, in order to prevent the knob 46 of the rice polishing degree setting means 35 from unexpectedly moving, an operation button is provided on the rice polishing degree setting means 35, and when the operation button is pressed, the knob 46 can slide. On the other hand, the knob 46 may be locked when the finger is released from the operation button.

Further, in this embodiment, in accordance with the third aspect, the display device 43 as a remaining time display means for displaying the remaining time until the end of the rice polishing is further provided. After the setting, the remaining time until the end of rice polishing can be immediately confirmed on the display 43.

Further, in the present embodiment, according to the fourth aspect, since the display device 43 is provided as rice milling degree display means for displaying the rice milling degree according to the set value of the rice milling degree setting means 35, the user can When setting the milling degree by the milling degree setting means 35, the milling degree can be confirmed in detail by the display 43.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the gist of the present invention. For example, if the same control described in the embodiment of the present invention is performed, the detailed structure of the rice mill is not limited to those shown in FIGS. For example, in the present embodiment, the variable resistor 48 of the slide volume type is used as the rice polishing degree setting means 35, but a rotary knob type variable resistor may be used instead. In addition, the milling container 17 of the present embodiment is formed in a net shape from the bottom portion to the side wall portion, but it is only necessary that the rice grains and the net portion are rubbed, so that either the bottom portion or the side wall portion is formed in a net shape. May be.

[0031]

[Effect of the invention]

 The rice mill according to the first aspect of the present invention has a rice mill body having a built-in electric motor, a bran receptacle detachably provided to the rice mill body, and a side wall and / or a bottom formed in a net shape. A rice mill container removably accommodated in the rice bran receiver, a rice milling blade provided in the rice mill container and rotating with the rotation of the electric motor, and a rice milling degree setting steplessly setting the milling degree Means for controlling the drive of the electric motor, wherein the electric motor can be driven and controlled substantially steplessly by operating the rice milling degree setting means. The degree can be finely adjusted.

[0032] Further, the rice polishing apparatus according to claim 2 of the present invention is characterized in that, in addition to the configuration of claim 1, the rice polishing degree setting means holds the set position after the operation. Furthermore, it is possible to perform the next rice polishing at the same rice milling degree without having to set the rice milling level each time, so that it is not necessary to provide dedicated storage means for the rice milling degree.

[0033] Further, the rice polishing apparatus according to claim 3 of the present invention is provided with remaining time display means for displaying the remaining time until the end of rice polishing in addition to the structure of claim 1. In this case, after setting the milling degree, the remaining time until milling is completed can be checked immediately.

[0034] Further, the rice polishing apparatus according to claim 4 of the present invention includes, in addition to the configuration of claim 1, a rice milling degree display means for displaying the rice milling degree according to the set value of the rice milling degree setting means. The milling degree display means allows the milling degree to be checked in detail.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice polishing machine showing an embodiment of the present invention.

FIG. 2 is a plan view of the rice mill.

FIG. 3 is a block diagram of a circuit showing an electrical configuration of the same.

FIG. 4 is a flowchart of the above control.

[Explanation of symbols]

 1 Body case (rice mill main body) 5 Electric motor 15 Rice bran receiver 16 Rice mill 23 Rice milling blade 33 Control circuit (Control means) 35 Milling degree setting means 43 Display (Remaining time display means, Milling degree display means)

Claims (4)

[Utility model registration claims] 1. A rice polishing machine body having a built-in electric motor, a rice bran receiver detachably provided to the rice polishing device main body, a side wall and / or a bottom formed in a mesh shape, and A rice mill that is detachably mounted, a milling blade provided in the milling container and rotating with the rotation of the electric motor, a rice milling degree setting means capable of setting the milling degree in a stepless manner, and the electric motor. Control means for controlling the drive, wherein the operation of the rice setting means enables the drive control of the electric motor substantially steplessly. 2. The rice mill according to claim 1, wherein said rice milling degree setting means keeps the set position after the operation. 3. The rice mill according to claim 1, further comprising a remaining time display means for displaying a remaining time until the rice polishing is completed. 4. The rice mill according to claim 1, further comprising a rice milling degree display means for displaying the rice milling degree according to the set value of said rice milling degree setting means.