JP6783699B2 - Rice milling machine - Google Patents

Description

The present invention relates to a rice milling machine used in a general household or the like.

The rice milling machine described in Patent Document 1 is configured to have a removable inspection panel. A safety device push protrusion for turning on the safety switch is provided on the inner surface of the inspection panel. When the inspection panel is attached, the push protrusion of the safety device turns on the safety switch of the drive motor, and the rice milling machine can be operated. In other words, the rice milling machine is configured so that the drive motor cannot be operated unless an inspection panel is attached.

Japanese Patent No. 5294987

The rice milling machine is configured to have a milling roll provided with a blade around it and a bran removing net arranged around the milling roll. Then, the polishing roll is rotated by a drive motor to polish the rice. If the inspection panel is attached here, the safety switch is turned on as described above, and the rice milling machine is ready to operate. However, even if the inspection panel is attached, if the bran removal net is not properly attached, the user may be able to touch the blade of the polishing roll. In this respect, there is room for further improving the safety of conventional rice milling machines.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a rice milling machine with improved safety.

[Structure 1]
The characteristic composition of the rice milling machine to achieve the above purpose is
A rice milling machine having a milling roll, a bran removing net, and a safety device, the safety device prohibits the operation of the rice milling machine when the bran removing net is in a non-regular position that does not cover the milling roll. At the point.

According to the above feature configuration, the safety device prohibits the operation of the rice milling machine when the rice bran net is in a non-regular position that does not cover the rice bran roll. Therefore, the rice bran net does not cover the rice bran roll. Since the roll does not rotate, the safety of the rice mill can be improved.

[Structure 2]
Another characteristic configuration of the rice milling machine according to the present invention is
The bran removing net is removable from the main body of the rice milling machine, and the safety device is the rice milling machine when the bran removing net is attached to the rice milling machine and is in a normal position to cover the milling roll. The point is to allow the operation of.

According to the above feature configuration, the safety device permits the operation of the rice milling machine when the rice bran net is attached to the rice milling machine and is in the normal position to cover the milling roll. Therefore, the operation of the rice milling machine is performed by the rice bran removing net. Since this is done when the rice is in the normal position, the safety of the rice mill can be improved.

[Structure 3]
The rice milling machine according to the present invention has a bran-removing net attachment / detachment unit that is attached / detached to / from the main body of the rice-polishing machine, and the bran-removing net attachment / detachment unit includes the bran-removing net and an operating member. The operating member can be configured to operate the safety device. As a result, the safety of the rice milling machine can be improved with a simple configuration.

[Structure 4]
The rice milling machine according to the present invention can be configured by arranging the operating member above the bran removing net. This makes it possible to suppress the malfunction of the safety device due to polished rice or bran that falls downward due to rice polishing.

Partial cross-sectional view showing the structure of a rice mill Partial cross-sectional view showing the structure of a rice mill Exploded view showing the structure of the rice mill Sectional view showing structure of safety device Sectional view showing structure of safety device

Hereinafter, the rice milling machine according to this embodiment will be described with reference to the drawings. FIG. 1 is a partial cross-sectional view taken along a plane parallel to the polishing roll 6. FIG. 2 is a partial cross-sectional view taken along a plane orthogonal to the cross section of FIG. FIG. 3 is an exploded view. As shown in FIGS. 1 to 3, the rice milling machine 1 includes a main body 2, a brown rice hopper 3, a rice container 4, a bran container 5, a rice bran roll 6, a bran net 12, a resistance device 13, a cover 20, and a safety device 30. Consists of having.

The brown rice hopper 3 is a hopper that stores brown rice inside, and is arranged above the main body 2. The rice container 4 is a container for storing polished rice polished by the polishing roll 6, and is arranged at the lower part of the main body 2. The bran container 5 is a container for storing the bran removed from the brown rice by the bran roll 6, and is arranged at the lower part of the main body 2.

The refine roll 6 is a columnar member and is attached to the spindle 6a. On the root side (the side of the spindle 6a) of the sperm roll 6, a progressive portion is formed by a spiral having a fine pitch. On the tip side of the polishing roll 6, a reverse feed portion is formed by a spiral opposite to the forward feed portion, which has a coarser pitch than the forward feed portion. By the mechanism described above, the spindle 6a is connected to the motor 6b by the spindle pulley 6c, the motor pulley 6d and the belt 6e. The motor 6b rotationally drives the spindle 6a and the polishing roll 6.

The bran removing net 12 is a hollow cylindrical member. A large number of slits that communicate the inside and the outside of the cylinder are formed on the side surface of the bran removal net 12. As shown in FIGS. 1 and 2, the bran removing net 12 is arranged at a position covering the sperm roll 6.

The resistance device 13 is a device that presses the resistance disk 13a against the tip of the bran removal net 12 (the tip side of the polishing roll 6) with a predetermined pressing force. The pressing force of the resistance disk 13a is adjusted by turning the rice milling degree dial 13b.

Here, the operation of rice milling in the rice milling machine 1 will be described. The brown rice that has flowed out from the opening at the bottom of the brown rice hopper 3 is supplied from the vicinity of the root of the brown rice roll 6 to the space (whitening chamber 8) between the rice bran roll 6 and the bran net 12. When the polishing roll 6 is rotationally driven by the motor 6b, rice is polished by friction between rice grains in the gap between the polishing roll 6 and the bran removing net 12. The polished rice pushes open the resistance disk 13a, jumps out of the polishing chamber 8, and falls from the rice outlet 13c into the rice container 4. The generated bran is discharged from the whitening chamber 8 through a slit on the side surface of the bran net 12, guided by the rice milling inner cylinder 7, and dropped into the bran container 5.

As shown in FIG. 3, in the rice mill 1 according to the present embodiment, the bran-removing net attachment / detachment unit 10 and the cover 20 can be attached / detached to / from the main body 2. The bran-removing net attachment / detachment unit 10 includes a substrate 11, a bran-removing net 12, a resistance device 13, and an operating member 14 as an integral body. Specifically, the bran removing net 12 is attached to one surface of the substrate 11, and the resistance device 13 and the operating member 14 are attached to the other surface of the substrate 11.

The operation member 14 is a claw-shaped member and is provided so as to project upward from the substrate 11. That is, as shown in FIGS. 1 to 3, the operating member 14 is arranged above the bran removing net 12. The operating member 14 operates the safety device 30 described later. Specifically, when the bran removal net attachment / detachment unit 10 is attached / detached to / from the rice mill 1, the operating member 14 operates the safety device 30. In the present embodiment, as shown in FIG. 3, two operating members 14 are provided on the bran removal net attachment / detachment unit 10. The two operating members 14 are arranged at both ends of the substrate 11 side by side in the left-right direction (left-right direction in FIG. 2) of the rice mill 1.

The cover 20 is a U-shaped member as a whole. As shown in FIG. 1, the cover 20 is attached to the main body 2 in a state of covering the bran removal net attachment / detachment unit 10 attached to the main body 2.

Hereinafter, the safety device 30 according to the present embodiment will be described with reference to FIGS. 4 and 5. FIG. 4 shows a state in which the bran removing net attachment / detachment unit 10 is attached to the main body 2 of the rice mill 1. FIG. 5 shows a state in which the bran removal net attachment / detachment unit 10 is pulled forward from the main body 2 of the rice mill 1.

The safety device 30 includes a micro switch 31, a switch rod 32, and a spring 33. In this embodiment, the safety device 30 is arranged in the main body 2 of the rice mill 1.

The micro switch 31 is a switch for switching permission / prohibition of operation of the motor 6b that rotationally drives the polishing roll 6. That is, the micro switch 31 is a switch for switching permission / prohibition of operation of the rice milling machine 1.

The switch rod 32 is a member that the operating member 14 comes into contact with to operate the microswitch 31. The switch rod 32 includes a shaft portion 32a, an operated portion 32b, and a switch operating portion 32c. The shaft portion 32a is a rod-shaped portion. The switch rod 32 is arranged on the main body 2 of the rice milling machine 1 in a posture in which the shaft portion 32a extends in the front-rear direction (horizontal direction in FIG. 4) of the rice milling machine 1. The operated portion 32b is a portion that protrudes downward from the shaft portion 32a and is a portion that the operating member 14 of the bran removing net attachment / detachment unit 10 comes into contact with. The switch operation portion 32c is a portion that protrudes upward from the shaft portion 32a and is a portion that the microswitch 31 contacts.

The spring 33 is a coiled spring, and urges the switch rod 32 in the front direction (left direction in FIG. 4) of the rice mill 1.

The rice milling machine 1 of the present embodiment is configured such that the safety device 30 permits the operation of the rice milling machine 1 when the bran removing net 12 is attached to the rice milling machine 1 and is in a normal position to cover the rice milling roll 6. There is. FIG. 4 shows a state in which the bran removal net 12 is in the normal position. In the present embodiment, as shown in FIG. 4, the bran removing net 12 covers the entire sperm roll 6 (from the tip to the root), and the sperm roll 6 is not exposed. That is, the "state in which the bran removing net 12 is in the normal position" means a state in which the user of the rice milling machine 1 cannot touch the milling roll 6.

In this state, the bran removing net attachment / detachment unit 10 is attached to the main body 2 of the rice mill 1, and the operating member 14 of the bran removing net attachment / detachment unit 10 comes into contact with the operated portion 32b of the switch rod 32, and the switch rod 32 Is moved backward (to the right in FIG. 4) of the rice mill 1. Along with this, the switch operation portion 32c of the switch rod 32 is separated from the micro switch 31, and the micro switch 31 is not pressed. In the present embodiment, the drive circuit of the motor 6b is configured so that the motor 6b can operate without the microswitch 31 being pressed.

The rice milling machine 1 of the present embodiment is configured such that the safety device 30 prohibits the operation of the rice milling machine 1 when the bran removing net 12 is in a non-regular position that does not cover the milling roll 6. FIG. 5 shows an example of a state in which the bran removal net 12 is in a non-normal position. Specifically, in the state of FIG. 5, the bran-removing net attachment / detachment unit 10 is pulled out in the front direction of the rice mill 1 (to the left in FIG. 5) and is slightly separated from the main body 2. In the present embodiment, as shown in FIG. 5, the bran removal net 12 does not cover the entire sperm roll 6 (from the tip to the root), and a part (or all) of the sperm roll 6 is exposed. It has become. That is, the "state in which the bran removing net 12 is in the non-regular position" means a state in which the user of the rice milling machine 1 can touch the milling roll 6. In the rice milling machine 1 according to the present embodiment, when the rice container 4 or the bran container 5 is removed from the main body 2 while the bran removing net 12 is in the above-mentioned non-regular position, the user may touch the rice bran roll 6. It will be in a possible state.

In this state, the operating member 14 of the bran removing net attachment / detachment unit 10 is separated from the operated portion 32b of the switch rod 32. The switch rod 32 is pushed by the spring 33 and moves in the front direction (left direction in FIG. 5) of the rice mill 1 as compared with the state shown in FIG. Along with this, the switch operating portion 32c of the switch rod 32 is in contact with the micro switch 31, and the micro switch 31 is in a pressed state. In the present embodiment, the drive circuit of the motor 6b is configured so that the operation of the motor 6b is prohibited (for example, the circuit of supplying power to the motor 6b is disconnected) while the microswitch 31 is pressed. ing.

The microswitch 31, the switch rod 32, and the spring 33 of the safety device 30 described above are arranged one by one at positions corresponding to the two operating members 14 of the bran net attachment / detachment unit 10. That is, in the present embodiment, the safety device 30 is configured to have two microswitches 31.

Regarding the permission / prohibition of the operation of the motor 6b, in the present embodiment, the drive circuit of the motor 6b is configured so that the operation of the motor 6b can be performed without pressing both of the two microswitches 31. That is, in a state where one of the two microswitches 31 is pressed and the other is not pressed, the operation of the motor 6b is prohibited (for example, the circuit for supplying power to the motor 6b is disconnected). The drive circuit is configured. As a result, the bran removal net attachment / detachment unit 10 is attached to the main body 2 of the rice mill 1 in an incomplete state, only one operating member 14 comes into contact with the switch rod 32, and only one micro switch 31 is not pressed. In the case of, the operation of the motor 6b is prohibited, and the operation of the rice milling machine 1 is prohibited. As a result, the rice milling machine 1 with further improved safety has been realized.

(Other embodiments)
(1) In the above-described embodiment, the safety device 30 is configured to have two microswitches 31. The number of microswitches 31 may be one, or three or more.

(2) In the above-described embodiment, the motor 6b is driven so that the operation of the motor 6b is prohibited (for example, the circuit for supplying power to the motor 6b is disconnected) while the micro switch 31 is pressed. The circuit was constructed. The safety device 30 may be configured so that the operation of the motor 6b is prohibited when the micro switch 31 is not pressed.

(3) In the above-described embodiment, the rice milling machine 1 is configured so that the milling roll 6 is attached to the main body 2 in a non-detachable state and the bran removing net 12 is detachable from the main body. The rice milling machine 1 may be configured so that both the bran removing net 12 and the milling roll 6 can be attached to and detached from the main body 2. Further, the rice milling machine 1 may be configured so that the bran removing net 12 is attached to the main body 2 in a non-detachable state and the milling roll 6 is detachable from the main body.

(4) In the above-described embodiment, when the bran-removing net attachment / detachment unit 10 is normally attached to the rice mill 1, the bran-removing net 12 covers the entire milling roll 6, and the position is referred to as a "normal position". did. It is also possible to configure the rice milling machine 1 with the state in which the bran removing net 12 covers a part of the milling roll 6 as a “normal position”. In this case, it is preferable that another member covers the bran roll 6 so that the bran roll 6 is not exposed when the bran net 12 is in the “normal position”. For example, it is preferable that the portion where the bran roll 6 is exposed when the bran net 12 is in the “normal position” is covered with another member. By configuring the rice milling machine 1 in this way, it is possible to set the "rice bran net 12 in the normal position" in which the user of the rice milling machine 1 cannot touch the milling roll 6.

The configurations disclosed in the above-described embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as there is no contradiction. , The embodiments disclosed in the present specification are examples, and the embodiments of the present invention are not limited thereto, and can be appropriately modified without departing from the object of the present invention.

1: Rice milling machine 2: Main body 3: Brown rice hopper 4: Rice container 5: Bran container 6: Rice bran roll 6a: Spindle 6b: Motor 6c: Spindle pulley 6d: Motor pulley 6e: Belt 7: Rice milling inner cylinder 8: Polishing chamber 10 : Bran removal net attachment / detachment unit 11: Board 12: Bran removal net 13: Resistance device 13a: Resistance disk 13b: Rice milling degree dial 13c: Rice outlet 14: Operating member 20: Cover 30: Safety device 31: Micro switch 32: Switch rod 32a: Shaft part 32b: Operated part 32c: Switch operation part 33: Spring

Claims (2)

A rice milling machine having a rice bran roll provided with a blade , a rice bran net arranged around the rice bran roll, and a safety device. In the safety device, the rice bran net does not cover the rice bran roll and the rice milling machine is used. When the roll is in a non-regular position where it is exposed, the operation of the rice milling machine is prohibited , and the bran removing net is attached to the rice milling machine to cover the milling roll so that the milling roll is not exposed. In some cases, it is configured to allow the rice milling machine to operate.
It has a bran removing net attachment / detachment unit that is attached / detached to the main body of the rice mill, and the bran removing net attachment / detachment unit is configured to have the bran removing net and an operating member, and the operating member serves as the safety device. Rice milling machine to operate . The rice milling machine according to claim 1, wherein the operating member is arranged above the bran removing net .

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