JP6933193B2 - Rice washing device - Google Patents

Description

The present invention relates to a rice-washing rice cooker capable of cooking a required amount of rice, and more particularly to a rice cooker suitable for cooking rice such as soft rice and porridge rice by adjusting the required amount of water.

In a rice-washing device equipped with a rice-washing section and a rice-cooking section, there is a technique that enables porridge rice cooking with a large amount of water addition and subtraction compared to standard rice cooking (Patent Document 1).

Since porridge rice cooking uses a large amount of water to be added or subtracted, the rice porridge liquid that spills from the lid of the rice porridge may adhere to the rice porridge or the gas table for heating and stain the rice porridge. When cooking rice or porridge, a large amount of rice cooking liquid is blown out from the pressure relief hole of the rice cooking lid so that it can be stored in the liquid pool A by the outer wall formed high even if it flows down, and a return hole is formed to make the rice cooker Some are configured to allow reflux to the inside (Patent Document 2).

Japanese Unexamined Patent Publication No. 11-19709 Japanese Unexamined Patent Publication No. 2005-168537

According to Pat. Although it has the effect of preventing it, it still requires a separate configuration for each rice cooker to handle the spilled rice cooker.

According to the present invention, by making the structure of the rice cooking lid unique, porridge rice can be cooked smoothly, and at the same time, dew condensation on the rice washing tank can be prevented.

The present invention has taken the following technical measures to solve the above problems.

The invention according to claim 1 is provided with a rice cooker (7) below the rice washing tank (5), and the rice cooker (7) is provided with a detachable rice cooker lid (32) in a container (31). An opening / closing portion (32b) is provided so that a part of the rice cooking lid (32) can be opened / closed.
In the main body (32a) of the rice cooking lid (32), a supply hole (32h) for supplying the rice and water-added / reduced water that is dropped and supplied from the rice washing tank (5) into the rice cooking pot (7) is formed. A supply hole opening / closing means (33) for opening / closing the supply hole (32h) is provided, and the opening / closing portion (32b) is provided on the front side of the supply hole opening / closing means (33).
A hinge (34, 34) is provided between the main body portion (32a) of the rice cooking lid (32) and the opening / closing portion (32b), and a handle (35) is provided on the opening / closing portion (32b).
The supply hole opening / closing means (33) for opening / closing the supply hole (32h) is a slide shutter (33) that slides along the guide rail (33a), and is provided by the hinge (34, 34) of the opening / closing portion (32b). The rotating shaft core is configured to follow the slide direction of the slide shutter (33), and is opened toward the rice washing tank (5) at the supply hole (32h) and the front position of the slide shutter (33). A holding means (36) for holding the opening / closing portion (32b) in an upright position is provided.
The opening / closing portion (32b) is held in an upright position below the outer peripheral portion of the rice washing tank (5) having a circular shape in a plan view or at a position outside the outer peripheral portion.
The holding means (36) is provided with a positioning restraint collar (36) to be incorporated in the rotating portion of the hinge (34), and the opening / closing portion (32b) can be fixedly held at an arbitrary angle smaller than 90 °. do.
The first invention related to the present invention is to provide an opening / closing portion 32b in which a rice cooking pot 31 is provided below the rice washing tank 5 and a part of the rice cooking lid 32 can be opened / closed with the rice cooking lid 32 attached to the rice cooking pot 31. prepare.

Second invention relating to the present invention, in the first invention relating to the present invention, the main body portion 32a of the cooking lid 32, the supply of rice and Mizukagen water is dropped and supplied from the rice washing tank 5 in rice in the pot A supply hole 32h is formed, a supply hole opening / closing means 33 for opening / closing the supply hole 32h is provided, and an opening / closing portion 32b is provided on the front side of the supply hole opening / closing means 33.

Third invention related to the present invention is the second invention relating to the present invention, the hinge 34 between the main body portion 32a of the cooking lid 32 and the opening and closing part 32b is provided, the handle in the closing part 32b 35 is provided.

A fourth invention related to the present invention, in a third invention related to the present invention, the supply hole closing means 33 for opening and closing the supply holes 32h is a slide shutter 33 to slide along the guide rails 33a, closing part 32b The rotating shaft cores of the hinges 34, 34 are configured to follow the slide direction of the slide shutter 33, and the holding means 36 for holding the opening / closing portion 32b in the upright position at the supply hole 32h and the front position of the slide shutter 33 is provided.

A fifth invention related to the present invention, in the fourth aspect related to the present invention, held in closing portion 32b standing posture below the outer position than the outer peripheral portion or the outer peripheral portion of the rice washing tank 5 exhibits a circular shape in plan view The configuration is to be used.

According to the present invention, steam during porridge rice cooking can be discharged, and the rice cooking liquid can be prevented from spilling over.
According to the present invention relating to the present invention, by keeping open the closing part 32b, it can discharge the water vapor in Kayumeshi rice, can prevent boiling over of cooking liquid.

According to a second invention relating to the present invention, it facilitates in addition to the effect of the first invention relating to the present invention, opening and closing operation of the opening and closing portion 32b from closing portion 32b is located closer to the hand of the operator Is.

According to a third invention relating to the present invention, in addition to the effects of the second invention relating to the present invention, to simplify the structure of the closing part 32b, the opening and closing operation is easy.

According to a fourth invention relating to the present invention, in particular the lower outer surface of the third addition to the effect of the invention, although the steam rises along the opening portion 32b which is held in the standing posture rice washing tank 5 relating to the present invention The rising steam is less likely to come into contact with and be exposed. Therefore, when it comes into contact with steam, dew condensation occurs on the 5 parts of the rice washing tank, and the rice tends to adhere and remain, but such a problem can be prevented.

According to the present invention relating to the present invention, in addition to the effect of the fourth invention related to the present invention, the outer peripheral portion of the rice washing tank 5 exhibits a circular shape in plan view or closing portion below the outer position than the outer peripheral portion By providing the rotating shaft core of 32b, the rising steam is guided by the opening / closing portion 32b in the standing posture, so that almost the entire rice washing tank 5 is not exposed to the steam and extends to almost the entire rice washing tank 5. Therefore, the residual adhesion of rice due to the above dew condensation can be reduced.

It is a front view of the rice washing apparatus of this invention. It is a side view of a rice washing machine. It is a front sectional view of a rice washing machine. It is a perspective view of a rice storage tank and a rice washing tank. It is a top view of a rice storage tank and a rice washing tank. It is a side sectional view of the measuring part. It is sectional drawing of the drum case. (A) is a side view showing an operating state, and (b) is a plan view showing an operating state. (A) (b) It is a front view of the operation panel. It is a front view which shows the working state of a dropping arm. It is a water adjustment process flowchart. It is a flow chart of a rice cooking process. It is explanatory drawing which shows the relationship between the rice washing tank capacity and the amount of water addition and subtraction. It is a control flowchart of the whole rice washing machine. (A) is a plan view of the rice cooking lid, and (b) is a side view of the rice cooking lid. (A) is a plan view showing an example of a hinge, and (b) is an exploded perspective view showing an example of a hinge. This is an example of an extended display screen. (a) An example of the relationship table of the amount of rice cooked in the normal rice cooking mode-the amount of water added / reduced, and (b) an example of the relationship table of the amount of rice cooked in the porridge rice cooking mode-the amount of water added / decreased. This is an example of the rice cooking condition setting screen.

Embodiments of the present invention will be described in detail below with reference to the drawings.
The support member 1 that vertically and horizontally frames the U-shaped or square tubular member is between a rectangular underframe 1a having casters at the bottom, left and right columns 1b and 1b having a predetermined width and a predetermined height, and left and right columns 1b and 1b. It is composed of a plurality of cross rails 1c, 1c ...

A flat plate-shaped partition member 3 is provided on the cross rail 1c to mount each equipment, a rice storage tank 4 is provided above the partition member 3, a rice washing tank 5 is provided below the rice storage tank 4, and the rice washing tank 5 is provided. The rice cooking device 6 is arranged below at intervals. The rice cooker 6 is composed of a rice cooker 7, a kettle heating gas stand 8, a drawer-type stand 9, and the like. The drawer side of the gantry 9 in FIG. 1 is the front side, and the back side is the rear side.

The rice storage tank 4 is composed of an upper main tank 4a having a rectangular cross section and a funnel-shaped hopper portion 4b at the lower portion, and a measuring drum case 10 is attached to the lower end portion of the hopper portion 4b. In the measuring drum case 10, a measuring drum 13 including a drum portion 11a having a cylindrical notch portion 11 and front and rear side wall portions 12a and 12b is provided, and penetrates the front and rear side wall portions 12a and 12b. It is rotatably supported by the drum case 10 by the horizontal axis 14. Further, a motor 15 is mounted on the rear surface side of the drum case 10 so that the shaft 14 is directly interlocked, and a fixed amount of rice flowing down from the rice storage tank 4 through the notch 11 is filled in the measuring drum 13 by rotation. When the position of the notch portion 11 is inverted downward and reaches the discharge port 16 formed in the drum case 10, the measuring drum 13 is discharged from the flow down.

The partition member 3 is provided with an opening 17 corresponding to the discharge port 16, and is configured to deliver a predetermined amount of rice from the rice storage tank 4 to the rice washing tank 5 by rotating the measuring drum 13 by a predetermined rotation speed. There is. Further, a predetermined amount can be supplied by detecting a rotation sensor (not shown) that counts the number of times of feeding.

The drum case 10 and the funnel-shaped hopper 4b are integrally formed, and after removing the upper main tank 4a, the integral body of the hopper 4b and the drum case 10 can be removed from the partition member 3. It is composed. That is, on the rear side, the hook-shaped portion 18 formed on the partition member 3 is provided with the engaging portion 20 so that the engaging convex portion 19 of the drum case 10 can be engaged and disengaged, and the partition member 3 and the drum case 10 are provided on the front side. A detachable engaging stay 21 that can be attached and detached and fixed with a screw is provided between the two, and the stay 21 is rotated around the screw portion by loosening the screw 22 to release the engagement with the drum case 10. The lower end edge of the drum case 10 is formed so as to fit into the rectangular opening of the partition member 3, but the lower end edge of the drum case 10 is slightly lifted upward by disengaging the engaging stay 21. By disengaging the partition member 3 and pulling it diagonally from the front toward the front, the lower end edge on the rear side can be disengaged and released from the engagement of the engaging portion 20.

The rice storage tank 2 and the measuring portion are configured to cover the outside with a cover member 23, and the left and right side walls and the rear side wall are appropriately fixed to the partition member 3 and the like, and the front side wall 23a is provided, for example, the right side portion in the front view. It is configured as a door that can be opened and closed as a fulcrum. Therefore, the rice storage tank 2 and the drum case 10 can be inspected and attached / detached with the front side wall 23a open. Reference numeral 24 denotes a square covering plate that detachably covers the main tank 4a from above.

Reference numeral 25 denotes a discharge shutter for rice discharge provided on one side (front side in the figure) of the funnel-shaped hopper portion 4b. The structure is such that the rice inside can be discharged.

FIG. 7 shows a cross-sectional view of the measuring drum 13 part, in which gaskets 26a and 26b for tilting and guiding rice are provided between the funnel-shaped lower hopper 4b and the drum case 10, and the outer periphery of the measuring drum 13 and the inside of the drum case 10 are provided. The space between the circumference and the circumference is such that there is a gap t (for example, about 1 mm) that does not crush the rice even if it is infiltrated.

The measuring drum 13 is repeatedly rotated and stopped in a certain direction by the motor 15, and the stop position of the measuring drum 13 is the position shown by the solid line in FIG. That is, a vibrating means (referred to as an air supply pump 66 described later in the figure) is attached to the side wall of the funnel-shaped hopper 4b on the inclined wall near the existing side of the rotating rear side gasket 26b to promote the internal rice flow. At the same time, the opening end edge of the measuring drum 13 is stopped at the rear position of the excitation side gasket 26b, and the other open end edge is stopped at the front position of the non-vibration side gasket 26a. The rice that is about to enter due to the vibration of the vibrating means is shielded by the measuring drum 13, while the non-vibrating side naturally feeds the rice into the measuring drum 13 to stabilize the accuracy of the supply amount.

As shown in FIG. 3, the rice washing tank 5 is provided with a receiving cylinder portion 131 for guiding the rice supplied from the drum case 10 on the ceiling portion, a cylindrical body portion in the middle portion, and a hopper-shaped portion in the lower portion. A filter 133 made of a mesh body having a jacket portion 132 connected below the hopper-shaped portion of the rice washing tank 3 and having an opening at the boundary between the hopper-shaped portion and the jacket portion 132 so as not to leak rice grains. Is provided.

A vertical rotating shaft 134 is provided at the center of the rice washing tank 5, and a plurality of stirring rods 135, 135 ... It is attached to 134 by welding or the like. The rotating shaft 134 is rotated by the rice washing motor 136 via the bevel gear mechanism 137, and is configured to agitate the rice and water in the tank by rotation.

The rotating shaft 134 is a hollow shaft, and the inner shaft 138 is freely slidably fitted inside the outer hollow shaft 134, and is detachably conical at the lower end of the shaft 138 extending downward. The rice discharge valve 139 is provided. The upper end of the shaft 138 is moved up and down by an interlocking mechanism such as a cam 141 driven by a rice discharge valve driving motor 140 and a drop arm described later, so that the opening and closing of the rice discharge valve 139 is controlled. When the rice discharge valve 139 is opened, the rice in the rice washing tank 5 is configured to fall into the inner pot of the rice cooking device 6 below.

Water is supplied to the rice washing tank 5 by the main water pipe 146 communicating with the water faucet, the upper water supply valve 147 and two flexible upper water supply pipes 148,148, and the upper water supply port 149 on the ceiling of the rice washing tank 5. It is carried out by two systems, an upper water supply route via 149 and a lower water supply route branching from the main water distribution pipe 146 and passing through a lower water supply valve 50, a water distribution pipe 51, and a lower water supply port 52 via a jacket portion 132. Each water supply route is equipped with a flow rate sensor.

That is, in the vicinity of the drum case 10, two upper water supply pipes 148 and 148 leading to the main water distribution pipe 146 are arranged based on the partition member 3, and the water distribution pipe 51 in which the partition member 3 is provided in a penetrating manner is provided. The lower water supply pipe 53 is connected.

Reference numeral 55 denotes a shutter that opens and closes the discharge port 16 in connection with the electric motor 15. The rotation of the motor 15 is connected to the shutter support shaft 58 via the link mechanisms 56 and 57, and the drum opening coincides with the discharge port 16. The interlocking configuration is such that the shutter 55 is opened when the shutter 55 is operated. Therefore, the shutter 55 is always in the closed posture to prevent the diffused water from scattering during the rice washing in the rice washing tank 3 and prevent the water from entering the measuring drum 13.

The upper water supply pipes 148 and 148 are arranged so as to be located on the left and right center lines in a plan view, and these positions correspond to the left and right center lines in a plan view of the rice washing tank 5 described later. Further, the drum case 10 is located on the left side of the positions where the upper water supply pipes 148 and 148 are arranged, and the rice discharge valve 139 motor 140 and the stirring rods 135, 135 ... Drive rice washing motor 136 described later are located on the right side. It is arranged.

A drainage box 60 is provided behind the lower part of the rice washing tank 3. In the drainage box 60 having the drainage port 61, the lower end of the overflow pipe 62 whose upper end opens to the upper side surface of the rice washing tank 3 and the other end of the jacket portion 132 whose one end communicates with the jacket portion 132 are connected. Has been done. Drainage from the jacket portion 132 is performed by opening and closing the drain valve 64, and the water level in the rice washing tank 5 is adjusted while draining with the water level valve 65.

The drainage box 60 is always closed by the drainage valve 64 and the water level valve 65, but when draining the water in the rice washing tank 5, the drainage valve 64 and / or the water level valve 65 is removed from the filter 133 of the jacket portion 132. , Drainage is performed through the drainage box 60 and the drainage port 61. The drain valve 64 and the water level valve 65 are opened and closed by an appropriate opening / closing output. Further, a float sensor 68 with an electric contact for detecting the amount of water in the rice washing tank 5 is provided in the upper part of the rice washing tank 3.

The water supply to the rice washing tank 5 is performed by two systems, an upper water supply route via the upper water supply port 148 on the ceiling of the rice washing tank 5 and a lower water supply route from the lower water supply port 51 via the jacket portion 132. Although it is configured, an air ejection pipe 67 that communicates with the pump 66 and ejects air is arranged in parallel with the lower water supply pipe 52 of the lower water supply route, and the air is combined with the water in the lower water supply route to jacket. The lower water supply pipe 52 and the air ejection pipe 67 are respectively provided at positions eccentric from the center of the jacket portion 132 in FIG. 8B, and air and water are mixed. The swirling flow is likely to occur.

When the rice is washed in the rice washing tank 5, the rotation directions of the large and small stirring rods 135, 135 ... Provided on the rotating shaft 134 in the rice washing tank 5, the water ejection direction from the lower water supply route, and the air ejection pipe 67 It is configured so that the air ejection directions from the air are opposite to each other.

During the rice washing operation, the stirring rods 135, 135 ... Are rotated counterclockwise as shown in FIG. 8B, and the direction of water ejection from the lower water supply route and the air ejection direction of the air ejection pipe 67 is rotated clockwise. Make it spout as if it were. Then, especially in the vicinity of the bottom of the rice washing tank 5, the rice is agitated by the stirring rods 135, 135, etc., and bubbles are generated by the ejection of air to enter the bubble washing state, and a high rice washing effect can be obtained.

Next, the operation of the rice cooker will be described.

First, in the control unit of the computer outside the figure, the rice cooking device operation such as rice cooking amount, rice washing time (rotation time of stirring rod 135), rice polishing time (rotation time of stirring rod 135), immersion time in rice washing tank or kettle, etc. The conditions necessary for the above are set by the operation panel (operation display device) 70 arranged on the front door portion of the cover member 23.

FIG. 9 shows a state in which the switch cover 71 of the operation panel (operation display device) 70 is closed (FIG. 9 (a)) and a state in which the switch cover 71 is opened (FIG. 9 (b)). A process display unit 72, a reservation switch 73, a setting switch group 74, a start switch 75, a help switch 76, and the like are arranged on the operation panel 70, and a liquid crystal display screen 77 is provided below. The process display unit 72 shows a preliminary process consisting of weighing, washing and dipping (immersing) rice, and a rice cooking process consisting of preparation of a kettle, dipping (immersion), ignition, rice cooking, unevenness, and cooking. LEDs 78, 78 ... Provided for each process display unit are lit to identify which process is currently being executed, and two colors, green in normal operation and red in abnormal conditions, are emitted. , The operating condition can be easily recognized.

The setting switch group 74 is provided with "UP (+)", "DOWN (-)", and "feed" switches on the top, bottom, left, and right, and main setting changes such as the planned number of kettles, the cooking time, etc. It is a configuration that can be set.

Further, the lower part of the operation panel 70 has the switch cover 71 that opens and closes up and down at the fulcrum of the horizontal axis, and when the cover 71 shown in FIG. 9A is closed, the liquid crystal display screen 77 is a normal operation display screen. Display A. In the embodiment of this embodiment, the cumulative number of rice cookers (corresponding to the total number of rice cookers; hereinafter referred to as the cumulative number of kettles), the number of consecutive rice cookers (hereinafter referred to as the planned number of kettles), the capacity to be processed in one rice cooker, and the method of cooking rice. (Mode), the total immersion time in the rice cooking preparatory process and the rice cooking process, and the steaming time are displayed.

Further, FIG. 9B shows a state in which the switch cover 71 is opened. The cover 71 is provided with a cover open / close detecting means 79 composed of a photo coupler and a reflector and a locking portion 80. When the cover 71 is opened, the cover open / close detecting means 79 is turned off and the liquid crystal display screen 77 is in normal operation. A screen on which rice cooking conditions can be set immediately is displayed from the display screen A, and this screen is hereinafter referred to as a rice cooking condition setting screen B. The rice cooking condition setting screen B is a screen on which one of the rice cooking conditions, the amount of water cooked, the amount of water, the washing method, the soaking time, the steaming time, the rice cooking method (mode), and the ignition method can be set. The rice cooking conditions can be determined by the setting switches 81, 81 ... At the corresponding positions. Reference numeral 82 denotes a power switch arranged below the operation panel 70.

The control unit also has the following functions. That is, it has a normal rice cooking mode in which white rice is cooked under normal water adjustment and a porridge rice cooking mode in which the amount of water is increased compared to the normal rice cooking mode and rice is cooked according to a unique heating program. It can be set. The normal rice cooking mode and the porridge rice cooking mode are configured to be automatically set by comparing the rice cooking amount S with the predetermined amount A set in advance in the control unit C. The rice porridge rice porridge mode is set according to the selection setting of the "porridge mode" on the extended setting screen C shown in FIG. 17 from the rice porridge condition setting screen B. The transition to the extended setting screen C is performed by simultaneously operating a plurality of switches of the setting switch group 74. In addition to the "porridge mode", the extended setting screen C includes "rice washing bubble setting", "water adjustment history", and the like.

An example of the relationship between the amount of rice cooked S and the amount of water added or subtracted in the normal rice cooking mode is shown in FIG. 18 (a), and an example of the relationship between the amount of cooked rice S and the amount of water added or subtracted in the porridge rice cooking mode is shown in FIG. 18 (b). To change the water level, change the range setting by pressing the "UP (+)" and "DOWN (-)" switches 74, along with the specification of "water level" on the rice cooking condition setting screen B shown in FIG. It is possible to change and set the amount of water addition and reduction correspondingly while doing it. The amount of water changed for each range of water adjustment in the normal rice cooking mode is set differently depending on the amount of rice cooked (Fig. 17, "changed water amount in one range"), whereas the range in the porridge rice cooking mode The amount of changed water for each change is constant regardless of the amount of rice cooked (Fig. 18, "1 range of changed water amount"). In this way, in the porridge rice cooking mode, which requires a large amount of water, the setting operation can be easily performed by changing the fixed amount for each range regardless of the fine setting.

On the rice cooking condition setting screen B of FIG. 19, by designating the "rice cooking amount" and pressing the "UP (+)" and "DOWN (-)" switches 74, the increase can be set in 0.5 kg units, for example. However, the figure shows a rice cooking amount of 3.0 kg in the standard rice cooking mode. By the way, when the porridge rice cooking mode is set, the maximum amount of rice cooked is set in advance. For example, when the "UP (+)" switch 74 is sequentially pressed, "0.5"-> "1.0"-> "1.5"-> "2.0"-> "0.5" ... , It is configured so that unexpected rice cooking conditions can be avoided by preventing settings exceeding "2.0". The maximum amount of rice cooked may be configured to set and store the maximum amount of porridge rice cooked in the control unit in correspondence with the amount of rice cooked in the rice cooker 7. Further, a discriminating means capable of automatically discriminating the type of the rice cooking pot 7 may be provided so that the maximum amount of rice cooked can be automatically set, and this configuration is convenient even if it is expanded to the normal rice cooking mode.

For example, when the set rice cooking amount S is large in comparison with the predetermined amount A (S ≧ A), the “normal rice cooking mode” is set. When the set rice cooking amount S is small (S <A), the “porridge rice cooking mode” is set.

Due to the difference between the above-mentioned "normal rice cooking mode" and "porridge rice cooking mode", the water adjustment and rice cooking heating programs are different, and the control operation is performed according to the programs stored in the control unit. For example, regarding the water adjustment process, as shown in FIG. 11, when the water adjustment process is started, the predetermined amount A (set to 2 squares) and the set rice cooking amount S are first compared (S101), 2 squares. In the above case, the normal water adjustment mode is set (S102), and in the case of less than 2 squares, the porridge rice water adjustment mode is set (S103). Specifically, the water level valve 65 opening time T for adjusting the water level with the water level valve 65 from the overflow state from the rice washing tank 5 is set based on the table or the relationship graph set for each mode. In the normal water adjustment mode, the opening time T of the water level valve 65 is set to TS (S104), and in the porridge rice water adjustment mode, it is set to TN (S105). When the mode is set and the water level valve open time is selected, both the drain valve and the water level valve are closed (S106) and water is supplied (S107). It may be a configuration in which both upper and lower simultaneous water supply can be selected).

Eventually, the overflow sensor 68 is turned on (S108), but the lower water supply is stopped (S109) and the water level valve 65 is opened (S110). Then, the water is drained from the rice washing tank 5 with the opening of the water level valve 65, and the water level is closed after a lapse of a predetermined time to obtain a desired water level, that is, water level (S112 to S115). Here, in the normal water adjustment mode, TS is called as the water level valve opening time (S115), and the rice cooking water is secured to be about 1.2 times the amount of rice cooked. Further, in the porridge rice water adjustment mode, TN is called as the water level valve opening time (TS <TN) (S114).

Therefore, these times are managed by the timer set, and when the timer outputs the elapse of the time, the timer is raised, the water level valve 65 is closed (S116), and the predetermined water adjustment is completed.

Next, when the rice cooking process is reached, as shown in FIG. 12, the normal rice cooking mode setting and the porridge rice cooking mode setting are selectively set for the processing procedure. In the normal rice cooking mode, the rice is cooked according to the heating program for normal rice cooking, and in the porridge rice cooking mode, the rice is cooked according to the heating program described later.

The predetermined amount A is set in consideration of the maximum capacity Q of the rice washing tank 5. The amount of rice cooked S and the required amount of water added / subtracted W are in a proportional relationship, and for example, W = pS + q (p and q are constants). Therefore, the total amount is S + W = S + pS + q = (1 + p) S + q. When considering the maximum capacity Q, the maximum value of the rice cooking amount S satisfying Q <(1 + p) S + q may be set as the set value A.

Further, since the constant p is different between the case of adding water for normal rice cooking and the case of adding water for porridge rice cooking, the set value A is naturally different. That is, the normal rice porridge water adjustment WS and the porridge rice porridge water adjustment WN have a relationship of WS <WN, and the constant p (= ps) for normal rice cooking is compared with the constant p (= pn) for porridge rice cooking. Is several times larger, so the set amount A is selected to be a value for cooking porridge rice (FIG. 13).

Next, an example of the drive configuration of the rice discharge valve 139 will be described with reference to FIG.

The drive configuration of the rice discharge valve 139 is such that when the rice discharge valve 139 is removed from the rice discharge shaft 138, cleaned, and then reattached, the rice discharge shaft 138 is fixed so as not to slide up and down, making it easy to install. It is a thing.

A rice discharging shaft 138 is loosely fitted in the hollow rotating shaft 134 so as to be slidable up and down, and a rice discharging valve 139 is attached to the lower end of the rice discharging shaft 138. An intermediate portion of the dropping arm 92 that moves up and down like a seesaw is pivotally supported on the mounting member on the upper part of the rice washing tank 5, one end of the dropping arm 92 is connected to the upper end of the rice discharging shaft 138 by a pin 93, and the other end of the dropping arm 92. A drop cam 141 driven in the direction of the arrow by the rice discharge valve driving motor 140 is movably linked to a roller 94 provided in the portion, and the rice discharge valve 139 is moved up and down to open and close the lower opening of the rice washing tank 5. Is. A stopper 95 is provided to stop the downward rotation of the dropping arm 92 on one end side at a predetermined position.

In the state shown by the solid line in FIG. 10, the large diameter portion of the dropping cam 141 abuts on the roller 94 of the dropping arm 92, lifts the left boom of the dropping arm 92, and passes the rice discharging shaft 138 and the rice discharging valve 139 via the dropping arm 92. Is lifted to close the rice discharge valve 139. Next, when the dropping cam 141 further rotates counterclockwise, it rotates while pressing the left side portion of the dropping arm 92, and when the large diameter portion separates from the roller 94, the left side of the dropping arm 92 is the rice discharge valve 139 and the like. The rice discharge shaft 138 also moves downward due to its own weight, and the rice discharge valve 139 is opened (Fig. 10 virtual line).

The operation of the above example will be described.

When the power switch 82 is turned on, the rice cooking conditions are set according to each operation of the operation panel 70, various rice cooking conditions are set, and then the start switch 75 is turned on, the operation is started as shown in the rice cooking flow shown in FIG. ..

That is, first, the power switch is turned on (step 1), then the rice cooking condition is set and input (step 2), and when the start switch 75 is pressed (step 3), the rice in the rice storage tank 4 is weighed with the weighing drum in step 4. Then, the set amount of rice is supplied to the rice washing tank 5, and the rice is washed in step 5.

The rice washing step of step 5 is a rice bran removing step of stirring rice while dripping water, a rice polishing step of once supplying water and then draining and stirring the rice in a wet state, a rough rinsing step of stirring rice at a predetermined water level, and a tank of water. It consists of a finishing rinsing process in which the mixture is stirred while overflowing.

Following the rice washing step of step 5, the process proceeds to the water adjustment treatment step of step 6. In this step 6, based on the flow of FIG. 11, the "normal rice cooking water adjustment mode" or the "porridge rice cooking water adjustment mode" is set as described above, and the amount of rice, the quality of rice, and the temperature in the rice washing tank 3 are set. , The microcomputer calculates the amount of water corresponding to the water temperature, etc., supplies water to the rice washing tank 5, and after the rice washing tank 5 is full, the water level valve 65 is opened for the calculated time, that is, TS or TN is "opened" to adjust the amount of water. do.

While the amount of water in normal rice cooking is about 1.2 times the amount of cooked rice, the amount of water in porridge rice cooking requires about 5 times the amount of water cooked, so it is significantly different. There is a limit to the amount that can be stored in a rice cooker, and even if it is possible to cook 5 squares of rice with a commercial rice cooker, the amount of porridge rice cooked is 2 squares or less. Depending on whether or not the amount exceeds the predetermined amount, the control unit automatically selects "normal rice cooking water adjustment mode" or "porridge rice cooking water adjustment mode", and the predetermined amount of water is obtained based on the selection. , It is possible to simplify the operation by eliminating the need for the operator to select and set whether to cook normal rice or porridge rice.

In step 7, the washed rice in the rice washing tank 5 and the measured amount of water in step 3 are dropped into the rice cooker 7 by opening and closing the rice discharge valve 139.

In step 8, the rice in the rice cooker 7 is immersed in water for a specified time. After the lapse of the specified time, ignition is performed in step 9, rice is cooked in step 10, steaming is performed in step 11, and the rice is cooked in step 12 to complete a predetermined cooked rice.

Before turning on the start switch 75, the reservation screen is output by operating the reservation switch, and the cooking time and the like can be reserved and cooked at the scheduled time.

Further, in the above embodiment, the amount of water is gradually reduced from the full state of the rice washing tank by opening the water level valve 65 to secure a predetermined amount of water. It may be a managed configuration.

Next, regarding the rice cooker 7, a rice cooker capable of cooking porridge rice will be described. In FIGS. 2, 15 and 16, the rice cooker 7 is provided with a container 31 and a medium-high shape rice cooker lid 32 having a high central portion by closing the opening of the main body of the container 31 so as to be detachably provided. A supply hole 32h is formed in the central portion, and a slide shutter 33 as a supply hole opening / closing means is attached so as to close the supply hole 32h so as to be openable / closable.

A part of the rice cooking lid 32 is formed of an opening / closing portion 32b that can be opened / closed via a main body portion 32a and hinges 34 and 34. The opening / closing portion 32b is opened at the time of cooking rice porridge, and can discharge steam during cooking rice porridge and prevent the rice cooking liquid from spilling over.

The slide shutter 33 is slidably provided along the guide rails 33a and 33a in the horizontal and horizontal directions, and by opening the supply hole 32h, rice and water added or removed from the rice washing tank 5 are put into the rice cooker 31. It is a configuration that can be supplied.

The opening / closing portion 32b of the rice cooking lid 32 is provided on the front side of the slide shutter 33 as the supply hole opening / closing means, that is, on the front side where the worker stands and performs various operations. As a result, there is no obstructive member and the opening / closing portion 32b can be easily operated. The slide shutter 33 is provided on the main body side and is configured to be controlled by the left-right movement control of the interlocking arm 33b that engages the knob 32c at the center of the rice cooker 32.

A handle 35 is provided on the opening / closing portion 32b of the rice cooking lid 32. When the hinges 34 and 34 are rotated upward around the center, the operation can be easily performed by the presence of the handle 35.

Further, the rotation axis of the opening / closing portion 32b by the hinges 34, 34 is provided in parallel with the guide rail 33a of the slide shutter 33, and includes a holding means 36 that rotates the opening / closing portion 32b and holds the opening / closing portion 32b in an upright posture. .. With this configuration, when cooking rice porridge, the opening / closing portion 32b can be held upright, so that the steam rises while being guided by the opening / closing portion 32b, so that the rising steam comes into contact with the lower outer surface of the rice washing tank 5 and is exposed. There are few things. As a result, dew condensation due to the above-mentioned adhesion to the wall surface is unlikely to occur, and thus the residual adhesion of rice can be prevented. Further, by providing the rotating shaft core of the opening / closing portion 32b below the outer peripheral portion of the rice washing tank 5 having a circular shape in a plan view or the outer peripheral portion thereof, the outer peripheral portion of the rice washing tank 5 or the outer peripheral portion thereof is provided. Since the opening / closing portion 32b is held in the standing position below the position, the rising steam is guided by the opening / closing portion 32b in the standing position, so that almost the entire rice washing tank 5 is not exposed to the steam, and the rice washing tank 5 It is possible to reduce the residual adhesion of rice due to the above-mentioned dew condensation over almost the entire area.

As the holding means 36 for holding the opening / closing portion 32b in the upright posture, the positioning restraining collars 36 and 36 incorporated in the rotating portion of the hinge 34 are interposed. As shown in FIG. 16, the hinge 34 includes a fixed side hinge portion 34a connected to the main body portion 32a, a rotating side hinge portion 34b connected to the opening / closing portion 32b, and a connecting pin 34c, and the fixed side hinge. The central ring portion 34d of the portion 34a and the end ring portions 34e and 34e of the rotation side hinge portion 34b are connected by the connecting pin 34c with the axial cores aligned, but the central ring portion 34d and the end ring portion 34e are connected. The positioning restraint collars 36 and 36 are interposed in the space between the parts and the 34e. The connecting pin 34c has a head and is fixed to the other with a nut, and the positioning restraining collars 36 and 36 are restrained by fastening the hinge portions 34a and 34b in a pressure contact state when the connecting pins 34c are connected to each other. Friction acts on the collars 36 and 36, and the rotating side hinge portion 34b can be held at an angle of approximately 90 ° at which the opening / closing portion 32b is in the standing posture with respect to the fixed side hinge portion 34a. Further, in the embodiment, the opening / closing portion 32b is configured to be fixedly held at an arbitrary angle smaller than approximately 90 °. The opening / closing operation of the opening / closing portion 32b by the operator's handle 35 can be set to an intended angle over the frictional action.

In the above embodiment, the opening / closing portion 32b is opened / closed by the hinges 34 and 34, but an insertion / removal form that can be pulled out to the front side (front side) of the rice cooker 31 may be used.

5 Rice washing tank 31 Rice cooking pot 32 Rice cooking lid 32a Main body 32b Opening / closing part 32h Supply hole 33 Slide shutter (supply hole opening / closing means)
33a Guide rail 34 Hinge 35 Handle 36 Positioning restraint collar (standing and holding means)

Claims (1)

A rice cooker (7) is provided below the rice wash tank (5), and the rice cooker (7) is provided with a detachable rice cooker lid (32) in a container (31), which is a part of the rice cooker lid (32). An opening / closing part (32b) that can be opened / closed is provided.
In the main body (32a) of the rice cooking lid (32), a supply hole (32h) for supplying the rice and water-added / reduced water that is dropped and supplied from the rice washing tank (5) into the rice cooking pot (7) is formed. A supply hole opening / closing means (33) for opening / closing the supply hole (32h) is provided, and the opening / closing portion (32b) is provided on the front side of the supply hole opening / closing means (33).
A hinge (34, 34) is provided between the main body portion (32a) of the rice cooking lid (32) and the opening / closing portion (32b), and a handle (35) is provided on the opening / closing portion (32b).
The supply hole opening / closing means (33) for opening / closing the supply hole (32h) is a slide shutter (33) that slides along the guide rail (33a), and is provided by the hinge (34, 34) of the opening / closing portion (32b). The rotating shaft core is configured to follow the slide direction of the slide shutter (33), and is opened toward the rice washing tank (5) at the supply hole (32h) and the front position of the slide shutter (33). A holding means (36) for holding the opening / closing portion (32b) in an upright position is provided.
The opening / closing portion (32b) is held in an upright position below the outer peripheral portion of the rice washing tank (5) having a circular shape in a plan view or at a position outside the outer peripheral portion.
The holding means (36) is provided with a positioning restraint collar (36) incorporated in the rotating portion of the hinge (34), and the opening / closing portion (32b) can be fixedly held at an arbitrary angle smaller than 90 °. Rice washing device.

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