JPH1128156A - Rice cooking device for business use - Google Patents

Abstract

PROBLEM TO BE SOLVED: To collect dew condensation when rice cooking steam is raised and dew- condensed by disposing a dew receiving tray for receiving the dew flowing down on the outer surface of a funnel part of a rice washing tank in a rice cooker provided with a rice discharging valve for introducing rice at the lower part of the rice washing tank with the funnel part tapered in lower side. SOLUTION: At the time of operating this rice cooking device, a control operation panel is operated to feed rice to the rice cooking tank 3 from a measuring drum 7 and feed water from a water feeding nozzle 21 in the state of opening the rice discharging valve and a water discharging valve to enter a rice washing process rotating a stirring bar 20. After executing a rice discharging process for feeding rice and rice cooking water into an inner furnace by lowering the rice discharging valve after then, a rice cooking process is started. In this rice cooking process, as the rice cooking steam is raised and cooked while being in contact with the outer surface of the tank 3 to condense dew, and the dew flows down on the outer surface of the funnel part 2. At this time the dew is caught and collected by the dew receiving tray 30 disposed at the upper part of a water discharging box 23 to prevent dropping down to the rice cooker 5, etc. Water collected by the tray 30 is discharged through a discharging means 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial rice cooker, and is used for cooking a large amount of rice in a sushi chain store, a restaurant or the like.

[0002]

2. Description of the Related Art A rice-discharging valve which can be opened and closed is provided at a lower portion of a rice-washing tank having a downwardly tapered funnel portion, and a rice cooker for receiving rice and rice-cooking water through the rice discharging valve to cook rice. Commercial rice cookers are known in Japanese Unexamined Patent Publication No. Hei 7-236683, Japanese Unexamined Patent Publication No. Hei 7-236568, and have a category different from that for home use. A large amount of rice was cooked in a gas or electric rice cooker after the process.

[0003]

During the rice cooking process using a conventional commercial rice cooker, steam from the rice cooker rises and adheres to the outer surface of the rice washing tub, which may cause dew condensation. There is a problem in that it flows down and is dropped on a drive unit such as a rice cooker, a rice cooker gantry, various motors, and the like, and causes hygiene problems and malfunctions or failures of each unit.

[0004] In particular, when a continuous operation is performed by a commercial rice cooker, a rice washing step, a colander raising step, and the like are performed in a rice washing tank above the rice washing tank during rice cooking in a rice cooker in preparation for the next rice cooking. When the cooked steam rises and adheres to the rice washing tank, it cools and forms dew, which frequently causes the above-mentioned factors. Accordingly, the present invention collects and collects dew condensation that inevitably occurs on the outer surface of the rice washing tub, thereby preventing a decrease in sanitary properties caused by the dew condensation, and preventing malfunctions or failures from occurring. It is an object to provide a commercial rice cooker that can be completely eliminated.

[0005]

According to the present invention, a rice washing tank 3 having a downwardly tapered funnel portion 2 is provided with a rice discharging valve 4 which can be opened and closed at a lower portion thereof. In a commercial rice cooker provided with a rice cooker 5 that receives water and cooks rice, the following technical measures are taken in order to achieve the above-mentioned object.

That is, the commercial rice cooker according to the present invention is provided with a dew tray 30 having an upper opening for receiving dew flowing down the outer surface of the funnel 2 in the rice washing tub 3. By adopting such a configuration, even when the cooked steam rises and comes into contact with and adheres to the outer surface of the rice washing tub 3 during the rice cooking with the rice cooker 5, the dew condensation flowing down is captured and collected by the dew tray 30. So that dripping downward is prevented.

Therefore, the rice cooker 5, especially the upper lid 36, the shutter 38, etc., does not become moist, so that the sanitary property can be improved. The quality degradation of rice is also reduced. In addition, the absence of moisture leads to a particularly good environment in the kitchen room.

Here, the dew tray 30 literally includes not only collecting and collecting dew but also collecting and collecting sewage and the like generated when the outer surface of the rice washing tank 3 is periodically cleaned (wiped). It is a thing. Further, in the present invention, it is desirable to provide a means 31 for discharging the dew received in the dew tray 30. By adopting such a configuration, water or the like does not overflow from the dew tray 30 and the drainage channel is formed. And can be drained out of the device.

Further, the dew receiving tray 30 is integrally provided with an annular inner wall 30A elastically deformed and closely attached to the outer surface of the funnel portion 3 and an annular weir 30B connected to a radially outer position of the annular inner wall 30A. By doing so, it is possible to reliably and easily mount the dew receiving tray 30 to the funnel portion 2 and reliably prevent water leakage from the mounting surface.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a commercial rice cooker according to the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a commercial rice cooker 1 according to the present invention, and FIG. 2 is a front view of the same. In FIGS. 1 and 2, the commercial rice cooker 1 according to the present invention is tapered downward. A rice-discharging valve 4 that can be opened and closed is provided at the lower part of a rice-washing tank 3 having a funnel portion 2 and a rice cooker 5 that receives and throws rice and rice cooked through the rice discharging valve 4 and cooks rice. ing.

At the upper part of the rice washing tub 3, a rice storage 6 is installed, and a measuring drum 7 provided at the lower part of the rice storage 6 is rotationally driven to shoot rice according to a programmed rice cooking amount. The rice washing tank 3 can be fed (supplied) from the upper part of the rice rinsing tank 3 through an opening 8, and the front (front) of the rice storage 6 is provided with an openable and closable door 10 having a built-in control unit 9. An operation panel 11 is mounted, and a lid 12 is mounted on an upper part of the rice storage 6, and by opening the lid 12, rice can be supplied.

The rice storage 6 is a cubic (box-shaped) container having a funnel at the bottom thereof, and is built in a box-shaped frame 13. The box-shaped frame 13 is erected from a base 15 having wheels 14. The commercial rice cooker 1 according to the present invention is portable and, of course, may be fixed in a kitchen room. The rice washing tub 3 is cylindrical and has a partition plate (support) 17 forming the bottom of the box-shaped frame 13.
Upper tank 3 attached to and fixed to and extended (exposed) downward
A and a lower tank 3B having a funnel portion 2 having an upper edge joined to a lower edge of the upper tank 3A and detachably attached via a plurality of fasteners 18.

A cylindrical shaft 19 that rotates around a vertical axis by a motor or the like provided in the box-shaped frame 13 is supported on the center (axis) of the rice washing tank 3. Is a stirring rod 2
0 is fixed and constitutes a stirring means, so that the rice put into the rice washing tank 3 can be washed and polished.
The stirring rod 20 is composed of a plurality of rods extending in the horizontal direction and extending downward along the inner surface of the tank, and a water supply nozzle 21 in the rice washing tank 3 connected to a tap water source or the like. Is provided on the upper part thereof, so that water for washing rice, cooking water and the like can be supplied.

The rice discharging valve 4 has a conical shape, and is detachably attached to the lower end of the valve rod 22 with a one-touch fitting or the like. The valve rod 22 is inserted into the cylindrical shaft 19 and has a box-shaped body 13.
It can be moved up and down via a cam, a crank, etc. provided inside, and can be opened and closed freely by this up and down operation. Rice washing tank 3
A drain box 23 is detachably attached to the lower end of the drain box via a plurality of one-touch fittings (patch locks) 24 shown in FIG. 3, and the drain box 23 is formed in a cylindrical shape. As shown, the funnel cylinder 2 has a large number of holes 24A.
An annular seal patch 25 is detachably attached to a rice discharge port 23A formed at the bottom of the drain box 23 through a packing retainer 26 screwed therein. 4 is substantially a seal patchon 25
It is supposed to open and close.

A branch pipe 26 is extended and connected to the drain box 23 in the horizontal direction (left direction in FIG. 2), and is connected to a lower end of a vertical pipe 27 connected to an overflow port formed in the upper part of the rice washing tank 3. Is connected to a drain box 28 having an openable and closable drain valve. The drain box 28 is connected to drain means 29 such as a drain hose and a drain trough.

A dew tray 30 constituting a main part of the present invention is mounted on the upper part of the drain box 23. The dew tray 30 is provided with a dew A flowing down the outer surface of the funnel 2 as shown in FIG. It has an upper opening for receiving. The dew tray 30 is a funnel 2
The annular groove 30 having an upper opening is formed integrally with an annular inner wall 30A elastically deformed and closely attached to the outer surface of the annular groove 30B and an annular weir 30B coupled to a radially outer position of the annular inner wall 30A.
C is formed.

The dew tray 30 is formed of an elastic material such as urethane rubber, is mounted from below the funnel 2 in a state of being expanded in a radially outward direction, and has an annular inner wall 3 in a virtual state in FIG.
0A is elastically deformed so as not to leak water by being in close contact with the outer surface of the funnel portion 2, and the annular inner wall 30A has a wedge-shaped cross section to flow down the outer surface of the funnel portion 2 (see arrow B). The dew A is smoothly stored in the annular groove 30C.

As shown in FIG. 4, a discharge port 30D is formed in the dew tray 30, and a discharge means 31 such as a hose or a tub is connected to the discharge port 30D, and water is stored in an annular groove 30C. Water can be drained out of the apparatus as shown in FIG. 1 and 2, the rice cooker 5 is provided detachably on a base 32 which can be moved in and out in a horizontal direction on a base 15 via slide rails, rollers and the like as shown in FIGS. It is an operation handle for getting in and out.

In FIG. 1 and FIG. 2, the rice cooker 5 includes a stove section 33 for gas, electricity, etc., mounted on a gantry 32.
And an outer hook 34 mounted on the stove 33,
An inner pot 35 which is removably fitted into the outer pot 34.
And a lid 36 detachably mounted on the inner pot 35.
The lid 36 is surrounded by an annular protector 37 connected to the upper part of the inner pot 35.

In the illustrated embodiment, a rice receiving port is opened at the center of the lid 36, for example, as a circular hole, and the rice receiving port is opened and closed by a shutter 38. The lid 36 can be entirely lifted vertically by the lifting lever 39 via the rollers 40 and the rails 41 (until the lid 36 comes to a position above the protector 37). Engaging part 4
3 can be held by engaging it, and the engagement can be released by a lock release lever 44.

The lid 36 can be held on the lift lever 39 side via a lock member 45, and the lock member 45 can be freely disengaged from the lid 36 by a lock release lever 44. Accordingly, the illustrated rice cooker 5 moves the rice and the rice cooked water into the inner pot 35 by opening and closing the rice discharge valve 4 by opening and closing the rice receiving port by vertically opening and closing the shutter 38 immediately below the rice discharge port 23A. Rice can be cooked in a state where the shutter 38 can be received and the shutter 38 is closed.

The lifting operation of the lifting lever 39 causes the lid 3 to move.
The inner pot 35 and the outer pot 34 can be pulled out in the horizontal direction together with the stove unit 33 by the in / out operation of the gantry 32 in a state where the lid 6 is lifted and the lid 36 is left. The rice cooker 5 can be freely moved in and out by moving the gantry 32 in and out with the lid 36 placed on 35.

The dew tray 30 can be fixed to the outer surface of the funnel 3 as an overhang, and in this case, it can be made of resin or metal. In addition, in FIGS. 1 and 2, an exhaust fan 46 is built in the inner part of the box-shaped frame 13, and the warm air in the box-shaped frame 13 is discharged to the outside of the frame 13 so as to be used for the measuring drum 7. By discharging heat energy (warm air) generated from the motor and the motor for driving the stirring rod 20 to the outside of the frame 13, the durability of the motor and the like is improved, and the rice stored in the rice storage 6 is stored. To prevent excessive drying.

The exhaust duct 47 of the exhaust fan 46 is fixed to the lower surface of the support base 17 and is located in the upper tank 3 in the rice washing tank 3.
A is circumscribed around A, and the air is exhausted forward from the exhaust hole 48 on the front side (the horizontal direction is good, but a slightly downward direction is desirable), whereby the control is easily affected by heat. The hot air from the rice cooker 5 is diffused into the section 9, where the exhaust duct 47 substantially constitutes a heat insulating layer.

Next, an outline of the operation of the rice cooker 1 described above will be described. By operating a switch on the control operation panel 11 and rotating the measuring drum 7, a predetermined amount of rice programmed is put into the rice washing tank 3. And start the rice washing process. This rice washing process is performed by supplying a required amount of water from the water supply nozzle 21 with the rice discharge valve 4 and the drain valve of the drain box 28 closed, and rotating the stirring rod 20 around the vertical axis. By turning on / off the 28 drain valves, a plurality of rice washing operations are performed.

By this washing, the bran is discharged out of the machine through the drainage box 28 and the like from the hole 24A of the funnel cylinder 24 together with the water. However, since the hole 24A has a size that does not pass through the rice, the rice is not leaked. Is prevented. When the rice washing process is completed, the rice polishing process and the colander raising process are started under the programmed conditions. In the rice polishing step, after washing the rice, the rice which has been drained and moistened is rotated by rotating the stirring rod 20, and then the process is shifted to a colander raising step.

The raising of the colander can be performed in the rice cooker 5. When the predetermined process is completed, the rice discharging valve 4 is lowered, and after passing through the rice discharging process of putting rice and rice cooking water into the inner pot 35 with the shutter 38 open, the shutter 38 is closed and the rice cooking process is closed. Transition as programmed in. The rice cooking steam rises by this rice cooking process, and the rice washing tank 3
When the dew A flows down the outer surface of the funnel 2 as shown by the arrow B in FIG. 4, the dew A collects and collects in the dew tray 30 at the upper part of the drain box 23, and cools. 5 is prevented, and when a drainage means 31 is provided, it is discharged out of the apparatus and does not leak from the dew tray 30.

In addition, even if the steam of cooked rice (hot air) rises and tries to enter the control section 9, the exhaust air from the exhaust fan 46 is blown out through the duct 47 and the exhaust hole 48, so that it is diffused and thermally weak. The control unit 9 is protected and eliminates the causes of failure and error. When the rice cooking process is completed as programmed,
Generally, after the steaming process, the rice cooker 5 is moved forward by the pulling-out operation of the gantry 32, the rice is transported to the cooking section together with the inner pot 35, and a new empty inner pot is inserted into the outer pot 34. Again, the rice is set directly below the rice discharge valve 5 through the pushing operation of the gantry 32 for preparing rice cooking.

[0029]

As described above in detail, according to the present invention, it is possible to prevent the dew flowing down the funnel portion of the rice washing tank from dropping onto the rice cooker or the like, not only to maintain the sanitary property but also to operate each operating portion and the driving portion. It is possible to improve the reliable operation and durability by eliminating the dampness of moisture.

[Brief description of the drawings]

FIG. 1 is a side view of a commercial rice cooker according to the present invention.

FIG. 2 is a front view of the commercial rice cooker according to the present invention.

FIG. 3 is a side view showing a main part of the present invention.

FIG. 4 is a sectional view showing a main part of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Commercial rice cooker 2 Funnel part 3 Rice washing tank 4 Rice discharge valve 5 Rice cooker 30 Dew tray

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kiyoto Kasamatsu 2-27, Mizuhashi, Higashiosaka-shi, Osaka Daiwa Seiko Co., Ltd. (72) Inventor Sadao Fukushima 2-chome, Mizuhashi, Higashiosaka-shi, Osaka No. 27 in Yamato Seiko Co., Ltd.

Claims (3)

[Claims] 1. A rice washing tank (3) having a downwardly tapered funnel (2) is provided with a rice discharge valve (4) that can be opened and closed at a lower portion thereof, and rice and rice cooked through the rice discharge valve (4). An industrial rice cooker provided with a rice cooker (5) for receiving and cooking water, wherein a dew tray (30) having an upper opening for receiving dew flowing down an outer surface of a funnel (2) in the rice washing tub (3). A rice cooker for business use, comprising: 2. The commercial rice cooker according to claim 1, further comprising means for discharging the dew received in the dew tray (30). 3. A dew tray (30) is provided with an annular inner wall (30A) elastically deformed and in close contact with the outer surface of the funnel portion (3) and an annular weir connected to a position outside the diameter of the annular inner wall (30A). 30
The commercial rice cooker according to claim 1 or 2, wherein B) and (B) are integrally provided.