JP3254408B2 - Commercial rice washing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial rice washing apparatus, which is used for performing a large amount (many) of rice washing and cooking in a sushi chain shop, a restaurant, etc. ) For commercial rice washing equipment.

[0002]

2. Description of the Related Art There is known a commercial rice cooker having a rice storage tank at an upper part thereof, a rice washing tank below the tank, and a rice cooker below the tank, for programmatically controlling weighing, washing and rice cooking (Japanese Patent Application Laid-Open No. HEI 9-102). 6-
No. 105742). Further, an apparatus for charging rice in a plurality of rice cookers for one rice washing machine is also known (Japanese Patent Laid-Open No. 7-8376).

[0003] Further, a rice cooker in which rice cookers are arranged side by side and a rice washing machine is sequentially moved is also known (Japanese Patent Laid-Open No. Hei 5-
No. 56850). In any of these conventional techniques, each of the steps of weighing, washing, and cooking rice is programmed, and when the quality of cooked rice is constant and used for business use,
Since it is advantageous in terms of labor saving, it is also active in the market.

[0004]

A plurality having water supply means and stirring means (usually two, but more than two)
A commercial rice washing device (hereinafter, for convenience, sometimes referred to as a double-type rice washing device) that includes a plurality of rice washing tanks arranged side by side and wash rice separately poured into the rice washing tanks by the stirring means,
A plurality of water supply means are connected to a common water supply section, water is supplied from each of the water supply means to each of the rice washing tubs, and the rice washing operation is performed in each of the rice washing tubs by the stirring means provided in the rice washing tub.

When the rice washing operation is started simultaneously with this double-type rice washing apparatus, since a plurality of water supply means are connected to a common water supply section (including a water pipe (including a main pipe and a branch pipe)), the water pressure of the water supply section is reduced. Is substantially constant, the flow rate from the plurality of water supply means is reduced, and the rice washing time is prolonged.When the rice washing time is prolonged, water containing bran is absorbed by the rice during this time. There is a problem that rice is swelled and softened, and when rice is excessively swelled and cooked, starch adheres to the bottom of the kettle and causes premature cutting (gas etc. is cut off faster than the set cooking time). There was a risk that the quality would deteriorate.

[0006] In addition, there is a fear that the rice grains may be broken during the washing and the starch may be eluted, thereby deteriorating the taste. In particular, in the time zone of the day, the frequency of water use by companies and households is high in the morning and evening, so the occurrence of the above-mentioned situation is remarkable, and this is an important issue of the double-type rice washing apparatus.

[0007] As one of the measures to solve this problem,
It is conceivable to temporarily store water in a water storage tank or the like during a time period when the amount of water used is low, and use this water for washing rice. However, since the pressure (water pressure) of the stored water is not as high as that of tap water, the pressure of the water jetted from the water supply means is reduced, and the pressure of the rice adhering to the inner surface of the rice washing tank, the stirring means (stirred bar material), etc. due to the pressure of the jetted water. , Rice bran and the like could not be sufficiently washed away, which not only impaired the taste of rice but also caused a problem in terms of sanitary properties.

Further, in the double-type rice washing apparatus, in addition to the above-mentioned first problem, a rice storage tank having a downwardly tapering funnel is provided corresponding to each of the plurality of rice washing tanks. There is a second problem that the rice form is not uniform and may be irregular, and it is difficult to quantify the metering and discharging of the rice by the measuring drum (quantitative dispensing member) provided at the lower part of the funnel portion.

The present invention solves the above-mentioned first problem by making it possible to select between simultaneous start and delayed start of rice washing in a double-type rice washing apparatus.
It is another object of the present invention to solve the above-described second problem by modifying the shape of a funnel in a rice storage (rice storage tank).

[0010]

SUMMARY OF THE INVENTION The present invention relates to a commercial rice washing machine comprising a plurality of rice washing tanks having water supply means and stirring means arranged side by side, and washing the rice separately charged into the rice washing tanks with the stirring means. In the apparatus, the following technical measures are taken in order to solve the first problem described above. That is, the water supply means is branched from a common water supply unit, and a control unit that enables selection of a simultaneous start of rice washing in each of the separate rice washing tanks and a delayed start in which one is delayed with respect to the other. It is characterized by having.

[0011] Here, the start of rice washing also refers to the case where the start including the measuring step and the end of the measuring step and the start of water supply. By adopting such a configuration, in the double-type rice washing apparatus, the rice-washing time can be performed as set by simultaneously starting the rice-washing in a time period when tap water is used less frequently, and the double-type rice washing can be performed. In the time zone where tap water is frequently used, rice washing is not delayed abnormally, and the rice washing time is not abnormally long. , Cracks and the like can be prevented, and good-tasting rice can be provided.

In the present invention, in order to solve the second problem described above, a rice storage tank having a downwardly tapering funnel is provided corresponding to each of a plurality of rice washing tanks,
The boundary inclined surface in the funnel portion is configured to extend upward from the upper edge of the other boundary inclined surface, and in addition, a vacuum for sucking and floating the rice into the rice storage tank is provided. By adopting a configuration in which the inlet port of the rice suction-floated by the vacuum is formed toward the other funnel section, uniform rice storage in each funnel section is enabled. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the entire configuration of a commercial rice washing apparatus (double rice washing apparatus) 1 according to the present invention.
2 and a side view, FIG.
In this example, a rice washing tank 4 having a water supply means 2 and a stirring means 3 is provided side by side in this example.
A gas-type rice cooker 5 is placed on a base 6 that can be pulled out in the horizontal direction.

Instead of the rice cooker 5, an inner pot or a container of the rice cooker may be placed on the gantry 6 to receive the washed rice in the container. In the following description, it is assumed that the rice cooker 5 is provided coaxially below the rice washing tank 4, and the left and right rice washing tanks 4, the rice cookers 5 and the like have the same left and right configurations. explain.

The gantry 6 is movable on a base 8 having wheels (preferably caster wheels) 7 in the horizontal and front-rear directions via a slide rail or the like, and a support frame 9 is erected on the back of the base 8. The box-shaped frame 10 is mounted, and a rice storage tank 11 is mounted in the box-shaped frame 10, and the rice storage tank 11 is tapered downward corresponding to each of the plurality of rice washing tanks 4. A funnel 12 is provided, and a lower part of the funnel 12 is provided with a volumetric measuring drum 13 driven by a motor (not shown).
Can be put into each rice washing tank 4 via the.

The water supply means 2 is branched from a common water supply section 15, and the start of rice washing in each of the separate rice washing tanks 4 is simultaneously started, and one of the rice washing tanks 4 is delayed with respect to the other rice washing tank 4. A control unit 16 having a selection circuit for selecting a delayed start which starts after shifting the time) is provided in the back of a door 17 provided on the front side of the box-shaped frame 10.

The door 17 is hinged on the front side (front side) of the box-shaped frame 10 (a part thereof is shown in FIG. 3).
The door 17 can be opened and closed freely.
An operation panel 18 having various push buttons for operating the device 6 is provided corresponding to the boundary between the left and right rice storage tanks 11, and a main power switch 20 is provided on one side of the operation panel 18.
Is provided.

As shown in FIG. 6, the control unit 16 starts (steps 1, S-1), weighs (steps 2, S-2), and selects (steps 3, 3) by operating a push button on the operation panel 18 or the like. -3), washing rice (steps 4, S-4), raising monkeys (steps 5, S-5), adding / draining rice (steps 6, S-6), soaking (steps 7, S-7), cooking rice (Step 8, S-8), Steaming (Step 9, S-9)
(Step 10, S-10)
Is controlled by a microcomputer such as an electronic circuit or an electric circuit. In the selected electric (electronic) circuit of step 3 (S-3), simultaneous start in the left and right rice washing tanks 4 is delayed with respect to the other. The delay start to be performed is selected in advance (after the start signal of step 1 is started). Here, the start of rice washing means that the weighing step of step 2 may be included, and step 3 is performed.
When the simultaneous start is selected, Steps 4 to 10 are simultaneously performed separately for the left and right rice washing tanks and below, and when the delayed start is selected, Steps 4 to 10 are configured so that one proceeds with a delay with respect to the other. I have.

Here, the weighing in step 2 refers to the rice storage tank 1
1 is to set the amount of rice to be cooked by operating the separately provided measuring drum 13, and the rice washing in step 4 means that the measured rice is received in the rice washing tank 4, and the water is supplied by the water supply means 2 and the stirring means 3 is supplied. It refers to removal of bran and the like by operation. When simultaneous start is selected in step 3, water is supplied simultaneously from the water supply means 2 through a pipe branched from the water supply section 15, and when delay start is selected, water supply is performed. One of the water supply means 2 is supplied early and the other is supplied with a time delay through a pipe branched from the section 15. Therefore, the branch pipe (see FIG. 3) has an electromagnetic on-off valve (see FIG. 3). (Not shown).

The raising of the colander in step 5 is to keep the rice after the rice washing in a wet state in the rice washing tank 4. If necessary, the stirring means 3 may be rotated at a low speed to carry out the rice polishing step. The water addition / discharge of step 6 means that after raising the colander, the washed rice is put into the inner pot of the rice cooker 5 through the opening and closing operation of the rice discharge valve 22 provided in the lower part of the rice washing tank 4. At the same time, rice water is supplied through the water supply means 2 in accordance with the amount of cooked rice.

The soaking in step 7 means that rice is soaked in water according to the amount of cooked rice before cooking.
Can be done by raising the colander. The rice cooking in step 8 means that in the case of automatic rice cooking, an ignition signal of the rice cooker 5 is transmitted after step 7 to start rice cooking. The rice cooking is automatically performed until the rice washing is completed until immersion (step 7). Manual ignition can also be used.

Referring to FIGS. 1 and 2, the box-shaped frame 1
The rice lift means 23 is provided at the upper part of the cylinder 0, and the lift means 23 is provided with a vacuum 25 for sucking and floating rice into the rice storage tank 11 via a pipe 24. The silencing case 26 is provided on the upper surface of the box-shaped frame 10. The vacuum 25 drives the suction fan by activating a motor (not shown), and applies negative pressure (vacuum) to the box-shaped frame 10 via the filter 27 to remove the pipe 24 having one end inserted into a rice bag or the like (not shown). Rice discharge tank 11 at the end discharge port
And the rice sucked up through a discharge guide (inlet) 28 is formed toward the other funnel portion 12 (from right to left in FIG. 1), whereby the left and right funnel portions 12 are formed.
It is said that rice can be stored almost uniformly.

In particular, as shown in FIG. 1, the boundary inclined surface 12A of the funnel portion 12 is extended upward from the upper edge of the other boundary inclined surface, and the rice flew through the inlet 28 by the extended portion 12B. By making the parts collide, it is possible to uniformly charge (supply) the funnel part 12 on the right side in the figure. As described above, since the rice is suctioned and floated by the vacuum 25, the inside of the box-shaped frame 10 is made a closed (sealed) space in order to maintain a negative pressure environment.

Referring to FIG. 3 and FIG. 4 together, the rice washing tank 4 is composed of an upper tank 30 having an upper edge fixed to a bottom plate 29 of the box-shaped frame 10 and a lower tank 31 having a funnel portion 31A tapering downward. The upper and lower tanks 30 and 31 are configured as shown in FIG.
Are joined and separated by a clamp fitting 32 shown in FIG. The water supply means 2 is provided with a water supply box 33 on a bottom plate 29 via a connection elbow 34, the elbow 34 being connected to the branch control pipe 21, and a perforated plate 35 having a gap 36 in the water supply box 33 and stopping. It is attached with the tool 37,
Here, a horizontal water supply component through the gap 36 and a vertical water supply component through the hole of the perforated plate 35 are provided.

As shown in FIG. 4, a drain box 38 having a drain port 38A is removably attached to the lower part of the lower tank 31 through a stopper 39 (see FIG. 5). A funnel 40 made of a perforated plate is detachably mounted inside the funnel 40. The funnel 40 is provided on an annular seal 41, and an inner peripheral opening of the seal 41 is substantially a rice discharge port 41A. The rice discharging valve 22 can be opened and closed by the up and down operation.

As shown in FIG. 1 and FIG.
An overflow vertical pipe 42 is connected to the overflow port 30A formed at the bottom, and an overflow drain box 43 is provided at a lower portion of the vertical pipe 42. The box 43 and the drain port 38A are connected to a horizontal branch pipe 44. The box 43 is provided with a drain valve for opening and closing a connection port with a branch pipe 44, and a drain passage 45 to the outside of the machine is formed.

As shown in FIG. 3, the stirring means 3 rotatably supports a cylindrical shaft 47 about a vertical axis via a bearing 46 mounted on the bottom plate 29. The stirring shaft 3 is arranged radially on the cylindrical shaft 47. 48, and can be operated by transmitting the torque of a motor or the like provided on the bottom plate 29 to the upper part of the cylindrical shaft 47 by a bevel gear or the like. Valve stem 49 on cylinder shaft 47
The rice discharging valve 22 is removably attached to the lower part of the valve rod 49 via a one-touch fitting or the like, and the valve rod 49 is provided on the bottom plate 29 or the like. The rice discharge valve 2 can be moved up and down with a cam, crank, etc.
2 can be opened and closed.

Referring to FIGS. 4 and 5, a funnel 31A in the rice washing tank 4 above the drain box 38 has an upwardly open dew receptacle 5 made of an elastic material (rubber or the like).
0 is provided, and steam generated during rice cooking in the rice cooker 5 is cooled by contacting the rice washing tank 4 and flows down as dew A in the dew receptacle 50 and is received through the drain hose 51 and the like. Can be released outside the aircraft.

In FIG. 5, reference numeral 52 denotes an upper cover elevating means, which is capable of holding the upper cover 53 of the rice cooker 5 at a raised position and opening and closing a rice inlet formed in the upper cover 53. Is slidable. Rice cooker 5
As shown in FIGS. 1, 2 and 5, a stove portion 55 for gas, electricity, etc., and an outer pot 56 mounted on the stove portion 55
And an inner pot 57 that can be inserted into and removed from the outer pot 56, and an upper lid 53 that allows the inner pot 57 to be opened and closed.
Is surrounded by a protector 58.

The rice cooker 5 and the raising means 52 may be configured as shown in the figure below.
Anything that accepts rice and cooks rice can be used (the container alone may be used as described above). 2 and 3, reference numeral 59 denotes an exhaust fan, which exhausts the air in the box-shaped frame 10 to prevent the motors housed in the frame 10 from being heated to a high temperature inside the frame 10 to prevent the motor from being heated. In addition to improving the durability of the rice, the rice stored in the rice storage tank 11 is prevented from being abnormally dried, and the exhaust air from the exhaust fan 59 is supplied to an exhaust duct 60 surrounding the upper part of the rice washing tank 4. As shown in arrow B of FIG. 3 through the exhaust hole 60A formed in the front through the air, the rising steam during cooking is diffused by the exhaust air from arrow B, and the hot air is sent to the control unit 16 which is thermally weak. To prevent intrusion.

[0031]

As described in detail above, according to the present invention, the rice can be washed quickly before the rice grains absorb the water containing bran, thereby preventing the deterioration of the taste and preventing the rice grains from cracking. Therefore, it is possible to prevent poor cooking such as premature cooking.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire rice washing apparatus according to the present invention.

FIG. 2 is a side view showing the entire rice washing apparatus according to the present invention.

FIG. 3 is a side sectional view of a main part.

FIG. 4 is a sectional view of a drain box.

FIG. 5 is a side view showing the upper cover elevating means.

FIG. 6 is a flowchart showing a rice cooking process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Commercial rice cooker 2 Water supply means 3 Stirring means 4 Rice washing tank 15 Water supply section

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Nakajima 2-2-227 Mizuhashi, Higashiosaka-shi, Osaka Daiwa Seiko Co., Ltd. (72) Inventor Sadao Fukushima 2 Mizuhashi, Higashiosaka-shi, Osaka No. 2-27 Daiwa Seiko Co., Ltd. (72) Inventor Shinji Harada 2-2-227 Mizuhashi, Higashi-Osaka City, Osaka Prefecture Daiwa Seiko Co., Ltd. (56) References JP-A-7-289432 (JP) , A) JP-A-5-42033 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B02B 1/04-1/06 A47J 27/00-27/14 A47J 43/24

Claims (3)

(57) [Claims] 1. A commercial rice washing apparatus in which a plurality of rice washing tanks having a water supply means and a stirring means are provided side by side, and rice separately poured into the rice washing tanks is washed by the stirring means. It is branched from a common water supply unit, and is provided with a control unit that can select a simultaneous start of rice washing in each of the separate rice washing tanks and a delayed start in which one is delayed with respect to the other. Commercial rice washing equipment. 2. A rice storage tank having a downwardly tapering funnel corresponding to each of a plurality of rice washing tanks, wherein a boundary inclined surface of the funnel extends upward from an upper edge of the other boundary inclined surface. The commercial rice washing apparatus according to claim 1, wherein the rice washing apparatus is used. 3. A vacuum for sucking and floating rice into a rice storage tank is provided on one funnel portion side, and an inlet for the rice sucked and floated by the vacuum is formed toward the other funnel portion. The commercial rice washing device according to claim 1 or 2, wherein the rice is washed.