JP2020000810A - Rice washing/cooking device - Google Patents

Abstract

To smoothly perform rice gruel and rice cooking, and prevent dew condensation in a rice washing tank by making a structure of a rice cooking lid peculiar.SOLUTION: There are provided: a rice cooking pot 31 below a rice washing tank 5; and hinges 34, 34 between a main body part 32a and an opening/closing part 32b of a rice cooking lid 32. The opening/closing part 32b is openably/closably provided in a state of attaching the rice cooking lid 32 to the rice cooking pot 31. The main body part 32a of the rice cooking lid 32 is formed with a supply hole 32h for supplying rice and water amount adjusting water dropped and supplied from the rice washing tank 5 into the rice cooking pot. A slide shutter 33 for opening/closing the supply hole 32h is provided, and the opening/closing part 32b is provided on the front side of the slide shutter 33. There is also provided holding means 36 for holding the opening/closing part 32b in a standing posture at a front side position of the supply hole 32h and the slide shutter 33.SELECTED DRAWING: Figure 15

Description

  The present invention relates to a rice-washing rice cooker configured to cook a required amount of rice, and more particularly to a rice cooker suitable for cooking rice such as soft rice or porridge rice with a required amount of water.

  In a rice washing rice cooker provided with a rice washing section and a rice cooking section, there is a technology that enables rice porridge rice to be cooked with a large amount of water with respect to standard rice cooking (Patent Document 1).

  Rice porridge rice cooks use a large amount of water, so there is a possibility that the rice cooked by the rice cooker spilled from the lid of the rice cooker may adhere to the rice cooker or the heating gas base and become soiled. When cooking rice or porridge rice, a large amount of rice cooking liquid is blown out from the pressure release hole of the rice cooker lid and can be stored in the liquid pool portion A formed by the high outer peripheral wall even if it flows down. There is one that can be refluxed inside (Patent Document 2).

JP-A-11-19709 JP-A-2005-16837

  According to Patent Document 2, even when cooking rice cooked with rice or porridge rice with an extremely large amount of water, the rice cooker can be prevented from spilling over, improving hygiene, and contaminating the rice cooker and the heating gas base, etc. Although it has the effect of preventing the rice cooker, a separate configuration is required for the rice cooker for treating the rice cooked liquid that spills.

  According to the present invention, rice cooker rice is cooked smoothly and the rice washing tank is prevented from dew condensation by making the configuration of the rice cooker lid unique.

  The present invention has taken the following technical means in order to solve the above problems.

  According to the first aspect of the present invention, a rice cooker 31 is provided below the rice washing tank 5, and an opening / closing part 32 b that allows a part of the rice cooker 32 to be opened and closed with the rice cooker 32 attached to the rice cooker 31 is provided.

  According to a second aspect of the present invention, in the first aspect of the present invention, a supply hole for supplying rice and water added and dropped from the rice washing tank 5 to the main part 32a of the rice cooker lid 32 into the rice cooker. A supply hole opening / closing means 33 for opening and closing the supply hole 32h is provided, and an opening / closing section 32b is provided in front of the supply hole opening / closing means 33.

  According to a third aspect of the present invention, in the second aspect, hinges are provided between the main body portion 32a and the opening / closing portion 32b of the rice cooker lid 32, and a handle 35 is provided in the opening / closing portion 32b.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the supply hole opening / closing means 33 for opening and closing the supply hole 32h is a slide shutter 33 sliding along a guide rail 33a, and the hinge 34 of the opening / closing portion 32b is provided. The rotation shaft 34 is configured so that the axis of rotation thereof is along the sliding direction of the slide shutter 33, and includes a holding unit 36 that holds the opening / closing unit 32 b in an upright posture at the supply hole 32 h and the front position of the slide shutter 33.

  According to a fifth aspect of the present invention, in the invention according to the fourth aspect, the rice washing tank 5 having a circular shape in a plan view is held in an upright position at the opening / closing portion 32b below the outer peripheral portion or a position outside the outer peripheral portion. .

  According to the first aspect of the present invention, by opening the opening / closing portion 32b, the steam during the cooking of the porridge rice can be discharged, and the rice cooker can be prevented from spilling over.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, since the opening and closing part 32b is arranged at a position close to the operator's hand, the opening and closing operation of the opening and closing part 32b is easy.

  According to the third aspect of the invention, in addition to the effect of the second aspect, the configuration of the opening / closing section 32b is simplified, and the opening / closing operation is easy.

  According to the fourth aspect of the invention, in addition to the effect of the third aspect, the steam rises along the opening / closing portion 32b held in the upright posture, but the rising steam comes into contact with the rice washing tank 5, particularly the lower outer surface. Less exposure. Therefore, when it comes into contact with steam, dew condensation occurs in the rice washing tank 5 and the rice tends to adhere and remain, but such a problem can be prevented.

  According to the fifth aspect of the invention, in addition to the effect of the fourth aspect, the rotation axis of the opening / closing portion 32b is located below the outer peripheral portion of the rice washing tank 5 having a circular shape in a plan view or a position outside the outer peripheral portion. Is provided, almost all of the rice washing tank 5 is not exposed to the steam by being guided to the opening / closing portion 32b in the upright posture, and the rice due to the dew condensation is formed over almost the entire rice washing tank 5. Adhesion residue can be reduced.

It is a front view of the rice washing rice cooker of the present invention. It is a side view of a rice-washing rice cooker. It is a front sectional view of a rice-washing rice cooker. 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 sectional side view of a measuring part. It is sectional drawing of a drum case. (A) is a side view showing an operation state, and (b) is a plan view showing an operation state. (A) (b) It is a front view of an operation panel. It is a front view showing an operation state of a drop arm. It is a water addition and subtraction process flowchart. It is a rice cooking process flowchart. It is explanatory drawing which shows the relationship between rice washing tank capacity and water addition and loss. It is a whole control flowchart of a rice-washing rice cooker. (A) It is a top view of a rice cooker lid, (b) It is a side view of a rice cooker lid. FIG. 2A is a plan view illustrating an example of a hinge, and FIG. 2B is an exploded perspective view illustrating an example of a hinge. It is an example of an extended display screen. It is an example of a relation table of (a) rice cooking amount-water addition and subtraction amount in normal rice cooking mode, and (b) an example of a relation table of rice cooking amount and water addition and subtraction amount in porridge rice rice cooking mode. It is an example of a rice cooking condition setting screen.

Embodiments of the present invention will be described below in detail with reference to the drawings.
A support member 1 for vertically and horizontally framing a U-shaped or rectangular tube material includes a rectangular underframe 1a provided with casters at a lower portion, left and right supports 1b, 1b having a predetermined width and a predetermined height, and a left and right support 1b, 1b. . Are supported by a plurality of horizontal rails 1c.

  The horizontal rail 1c is provided with a flat partition member 3 for mounting 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 a rice washing tank 5 is provided. The rice cooker 6 is arranged at intervals below. The rice cooker 6 includes a rice cooker 7, a gas table 8 for heating the cooker, a drawer-type stand 9, and the like. The drawing-out 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 lower funnel-shaped hopper 4b, and a weighing drum case 10 is attached to a lower end of the hopper 4b. In the measuring drum case 10, a measuring drum 13 including a cylindrical drum portion 11a having a notch 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 on the drum case 10 by a horizontal shaft 14 for the sake of simplicity. Further, a motor 15 is mounted on the rear side of the drum case 10 so that the shaft 14 can be directly linked, and the rice that has flowed down from the rice storage tank 4 to the measuring drum 13 via the notch 11 by a predetermined amount is filled. When the position of the notch 11 is inverted downward and reaches the discharge port 16 formed in the drum case 10, the flow is discharged downward from the measuring drum 13.

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

  The drum case 10 and the funnel-shaped hopper 4b are integrally formed. After the upper main tank 4a is removed, the integrated body of the hopper 4b and the drum case 10 can be removed from the partition member 3. Be composed. That is, on the rear side, an engaging portion 20 of the drum case 10 is provided on the hook-like portion 18 formed on the partition member 3 so that the engaging convex portion 19 can be engaged and disengaged. On the front side, the partition member 3 and the drum case 10 are provided. A detachable engagement stay 21 that can be attached and detached and fixed with a screw is provided between them, and the engagement with the drum case 10 is released by loosening the screw 22 and rotating the stay 21 around the screw portion. The lower end of the drum case 10 is formed so as to fit into the rectangular opening of the partition member 3. However, the engagement stay 21 is disengaged and the side thereof is slightly lifted to raise the lower end. By releasing the fitting from the partition member 3 and pulling it obliquely from the front toward the front, it is possible to release the engagement of the engaging portion 20 while releasing the fitting of the lower end edge on the rear side.

  The rice storage tank 2 and the weighing unit 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, for example, a right side part in a front view. It is configured as a door that can be opened and closed as a fulcrum. Therefore, inspection and removal of the rice storage tank 2 and the drum case 10 can be performed with the front side wall 23a opened. Reference numeral 24 denotes a rectangular cover plate for detachably covering the main tank 4a from above.

  Reference numeral 25 denotes a discharge shutter for discharging rice provided on one side (the front side in the illustrated example) of the funnel-shaped hopper portion 4b, which blocks the discharge of rice in an upright posture, and rotates around a shaft support to form an inclined guide chute. It is designed to discharge the rice inside.

  FIG. 7 is a cross-sectional view of the measuring drum 13, wherein gaskets 26 a and 26 b for obliquely guiding rice are inclined between the funnel-shaped lower hopper 4 b 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 gap with the circumference is configured to have a gap t (for example, about 1 mm) that does not cause crushing of rice even by infiltration of rice.

  The weighing drum 13 is repeatedly rotated and stopped in a fixed direction a by a motor 15, and the stop position of the weighing drum 13 is a position shown by a solid line in FIG. That is, a vibrating means (in the illustrated example, a pump 66 for supplying air) is attached to the side wall of the funnel-shaped hopper 4b on the inclined wall near the side where the rotating rear gasket 26b exists to promote rice flow inside. At the same time, the measuring drum 13 has its opening edge stopped at a position after the rotation of the vibration-side gasket 26b, and the other opening edge stopped at a position in front of the non-vibration-side gasket 26a. Meanwhile, while the rice that is about to enter due to the vibration of the vibrating means is shielded by the measuring drum 13, the accuracy of the supply amount can be stabilized by naturally feeding the rice into the measuring drum 13 on the non-vibrating side.

  As shown in FIG. 3, the rice washing tank 5 includes a receiving cylinder 131 for guiding rice supplied from the drum case 10 on the ceiling, a cylindrical body in the middle, and a hopper in the lower. A filter 133 having a configuration in which a jacket 132 is connected below the hopper-like portion of the rice washing tank 3 and has an opening at a boundary between the hopper-like portion and the jacket 132 to such an extent that rice grains do not leak. 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... Formed by bending a rod into an inverted L-shape are provided on the rotating shaft 134. Attach to 134 by welding or the like. The rotating shaft 134 is rotated by a rice washing motor 136 via a bevel gear mechanism 137, and is configured to stir the rice and water in the tank by the rotation.

  The rotary shaft 134 is a hollow shaft, and the inner shaft 138 is loosely fitted inside the outer hollow shaft 134 so as to be slidable up and down. Is provided. The opening and closing control of the rice discharging valve 139 is performed by moving the upper end of the shaft 138 up and down by a cam 141 driven by a rice discharging valve driving motor 140 and an interlocking mechanism such as a dropping arm described later. 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 cooker 6 below.

  The supply of water to the rice washing tank 5 is performed by a main water supply pipe 146 communicating with a water tap, an upper water supply valve 147 and two flexible upper water supply pipes 148, 148, and an upper water supply port 149 at the ceiling of the rice washing tank 5. 149 and a lower water supply route branching from the main water supply pipe 146 and passing through the lower water supply valve 50, the water distribution pipe 51, and the lower water supply port 52 through the jacket 132. Each water supply route is provided with a flow rate sensor.

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

  Reference numeral 55 denotes a shutter which opens and closes the discharge port 16 in connection with the electric motor 15, and connects the rotation of the motor 15 to the shutter support shaft 58 via link mechanisms 56 and 57 so that the drum opening coincides with the discharge port 16. The shutter 55 is opened when the shutter is opened. For this reason, the shutter 55 is normally in the closed position, preventing the diffusion water from scattering in the rice washing tank 3 during the washing and preventing the water from entering the measuring drum 13.

  The upper water supply pipes 148, 148 are arranged so as to be located on the left and right center lines in plan view, and this position corresponds to the left and right center lines in plan view of the rice washing tank 5 described later. Further, the drum case 10 is located on the left side of the position where the upper water supply pipes 148, 148 are arranged, and the motor 140 for the rice discharging valve 139 and the stirring rice balls 135, 135... Are placed.

  A drain box 60 is provided at the lower rear of the rice washing tank 3. In the drain box 60 having the drain port 61, the lower end of the overflow pipe 62 whose upper end is open to the upper side surface of the rice washing tank 3 is connected to the other end of the jacket 132 whose one end communicates with the jacket 132. Have been. Drainage from the jacket 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 the water with the water level valve 65.

  Normally, the drain box 60 is closed by the drain valve 64 and the water level valve 65. However, when draining the water in the rice washing tank 5, the drain 133 and the water level valve 65 are supplied from the filter 133 of the jacket 132. , And is drained through a drain box 60 and a drain port 61. The drain valve 64 and the water level valve 65 are opened and closed by an appropriate open / close output. In addition, a float sensor 68 with electric contacts for detecting the amount of water in the rice washing tank 5 is provided at the upper part in the rice washing tank 3.

  The supply of water to the rice washing tank 5 is performed in two systems: an upper water supply route via an upper water supply port 148 at the ceiling of the rice washing tank 5 and a lower water supply route via the lower water supply port 51 via the jacket 132. In this configuration, an air ejection pipe 67 communicating with a pump 66 and ejecting air is arranged in parallel with the lower water supply pipe 52 of the lower water supply route. 8B, the lower water supply pipe 52 and the air ejection pipe 67 are respectively provided at positions eccentric from the center of the jacket 132 in FIG. 8B, and air and water are mixed. A swirling flow is likely to occur.

  During the rice washing operation 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. Are configured so that the directions in which air is ejected from are opposite to each other.

  During the rice washing operation, the stirring rods 135, 135,... Are rotated counterclockwise as shown in FIG. 8 (b), and the direction of water and air from the air supply pipe 67 is rotated clockwise from the lower water supply route. Squirt like so. Then, particularly in the vicinity of the bottom in the rice washing tank 5, the rice is stirred by the stirring rods 135, 135,..., And bubbles are generated by the ejection of air, so that the rice is in an air bubble washing state, so that a high rice washing effect can be obtained.

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

  First, the control unit of the computer (not shown) operates the rice cooker such as the amount of cooked rice, the rice washing time (rotation time of the stirring rod 135), the rice polishing time (rotation time of the stirring rod 135), and the immersion time in the rice washing tank or the pot. Are set by an operation panel (operation display device) 70 disposed on the front door 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. 9A) and a state in which it is opened (FIG. 9B). On the operation panel 70, a process display section 72, a reservation switch 73, a setting switch group 74, a start switch 75, a help switch 76 and the like are arranged, and a liquid crystal display screen 77 is provided below. In the process display section 72, a preliminary process consisting of weighing, washing, and soaking (immersing) rice, and a rice cooking process consisting of preparing, immersing (immersing), igniting, cooking, steaming, and cooking rice are each described. LEDs 78, 78... Provided for each process display section are illuminated so as to be able to identify which process is currently being executed, and emit light in two colors, green in a normal operation state and red in an abnormal state. The driving state can be easily recognized.

  The setting switch group 74 includes "UP (+)", "DOWN (-)", and "forward" switches arranged in the upper, lower, left, and right directions. It is a configuration that can be set.

  Further, the lower part of the operation panel 70 has the switch cover 71 which opens and closes up and down at a horizontal axis fulcrum. When the cover 71 shown in FIG. 9A is closed, the liquid crystal display screen 77 becomes the normal operation display screen. A is displayed. In this embodiment, the total number of cooked rice (corresponding to the number of rice cookers; hereinafter, referred to as the total number of cookers), the number of times of continuous cooking (hereinafter, referred to as the planned number of kettles), the capacity to be processed by one cooked rice, and the method of cooking rice (Mode), the total immersion time in the rice cooking preliminary step and the rice cooking step, and the steaming time are displayed.

  FIG. 9B shows a state in which the switch cover 71 is opened. The cover 71 is provided with a cover opening / closing detecting means 79 comprising a photocoupler and a reflection plate, and a locking portion 80. When the cover 71 is opened, the cover opening / closing detecting means 79 is turned off, and the liquid crystal display screen 77 is operated normally. A screen on which rice cooking conditions can be immediately set 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 any one of the rice cooking conditions among the rice cooking amount, water addition, washing, soaking time, steaming time, rice cooking method (mode), and ignition method can be set. The rice cooking conditions can be determined by setting switches 81, 81,... Located at corresponding positions. A power switch 82 is provided below the operation panel 70.

  The control unit also has the following functions. In other words, it has a normal rice cooking mode in which white rice is cooked under normal water control and a rice rice cooking mode in which the water weight is increased compared to the normal rice cooking mode and rice is cooked according to a specific heating program, and each has a unique water control. It can be set. Note that the normal rice cooking mode and the rice porridge rice cooking mode are configured to be automatically set based on a comparison between the rice cooking amount S and a predetermined amount A preset in the control unit C. The setting of the rice porridge rice cooking mode is based on the selection setting of the rice porridge mode from the rice cooking condition setting screen B to the extended setting screen C shown in FIG. The transition to the extended setting screen C is made by operating a plurality of switches of the setting switch group 74 simultaneously. The extended setting screen C includes “rice washing mode”, “water washing setting”, and the like in addition to “porridge mode”.

  FIG. 18A shows an example of the relationship between the rice cooking amount S and the water loss in the normal rice cooking mode, and FIG. 18B shows an example of the relationship between the rice cooking amount S and the water loss in the porridge rice cooking mode. In order to change the water addition and subtraction, the range setting is sequentially changed by pressing the "UP (+)" and "DOWN (-)" switches 74 together with the designation of "water addition" 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 while performing. The change water amount for each range of water addition and subtraction in the normal rice cooking mode is set differently depending on the amount of rice cooked (FIG. 17, "one range of change water amount"), whereas the range in the rice porridge rice rice cooking mode is set. The changed water amount is constant regardless of the amount of cooked rice (FIG. 18, "one range of changed water amount"). As described above, in the porridge rice cooking mode requiring a large amount of water, the setting operation can be easily performed by changing the fixed amount for each range without depending on the detailed setting.

  In the rice cooking condition setting screen B shown in FIG. 19, the user can specify “rice cooking amount” and press the “UP (+)” or “DOWN (−)” switch 74 to increase the amount by, for example, 0.5 kg. However, in the example shown in the figure, the amount of cooked rice in the standard cooked rice mode is 3.0 kg. By the way, when the rice porridge rice cooking mode is set, the maximum amount of cooked rice is set in advance. For example, when the “UP (+)” switch 74 is sequentially pressed, “0.5” → “1.0” → “1.5” → “2.0” → “0.5”. , “2.0” cannot be set, and unexpected rice cooking conditions can be avoided. The maximum amount of rice cooked may be set so as to correspond to the amount of rice cooked in the rice cooker 7, and the maximum amount of rice cooked in the control unit is stored. Further, a configuration may be adopted in which a determination means capable of automatically determining the type of the rice cooker 7 is provided so that the maximum amount of cooked rice can be automatically set. This configuration is convenient even when the normal rice cooking mode is developed.

  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 rice cooking mode is set to “porridge rice cooking mode”.

  The difference between the “normal rice cooking mode” and the “porridge rice rice cooking mode” is different from each other in the water addition / cooking rice heating program, and the control operation is performed according to the programs stored in the control units. For example, in the water addition and subtraction processing, as shown in FIG. 11, when the water addition and subtraction processing starts, first, a predetermined amount A (set to 2 boxes) is compared with the set rice cooking amount S (S101), and 2 boxes are added. In the above case, the normal water mode is set (S102), and when less than 2 squares, the rice water mode is set (S103). Specifically, the water level valve 65 opening time T for adjusting the water level by the water level valve 65 from the overflow state from the rice washing tank 5 is set based on a table set for each mode or a relation graph. In the normal water mode, the opening time T of the water level valve 65 is set to TS (S104), and in the rice water mode, the open time T is set to TN (S105). When the mode setting and the selection of the water level valve opening time are performed, both the drain valve and the water level valve are closed (S106), and water supply is performed (S107) (in this embodiment, the lower water supply is used, but the upper water supply is used). And a configuration in which simultaneous upper and lower water supply is selectable).

  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, with the opening of the water level valve 65, the rice is drained from the rice washing tank 5 and closed after a lapse of a predetermined time to obtain a desired water level, that is, a water level (S112 to S115). Here, in the normal water control mode, TS is called as the water level valve opening time (S115), and rice cooking water of about 1.2 times the rice cooking amount is secured. In addition, in the rice porridge control mode, TN is called as the water level valve opening time (TS <TN) (S114).

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

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

  The predetermined amount A is set in consideration of the maximum capacity Q of the rice washing tank 5. The cooked rice amount S and the required water addition and subtraction amount W are in a proportional relationship, for example, W = pS + q (p and q are constants). Therefore, in the total amount, 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.

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

  Next, an embodiment of a drive configuration of the rice discharging valve 139 will be described with reference to FIG.

  The driving configuration of the rice discharging valve 139 is such that when the rice discharging valve 139 is removed from the rice discharging shaft 138, cleaned, and then mounted again, the rice discharging shaft 138 is fixed so as not to slide up and down, thereby facilitating mounting. Things.

  A rice discharge shaft 138 is loosely fitted in the hollow rotary shaft 134 so as to be slidable up and down, and a rice discharge valve 139 is attached to a lower end of the rice discharge shaft 138. An intermediate portion of a dropping arm 92 that moves up and down like a seesaw is pivotally supported on a mounting member above the rice washing tank 5, one end of the dropping arm 92 is connected to an upper end of a rice discharging shaft 138 by a pin 93, and the other end of the dropping arm 92 is connected. A discharge cam 141 driven in the direction of the arrow by a rice discharge valve driving motor 140 is movably linked to a roller 94 provided in the section, and the rice discharge valve 139 is moved up and down to open and close the lower opening of the rice washing tank 5. It is. Note that a stopper 95 is provided to stop the downward rotation of the drop arm 92 at 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 contacts the roller 94 of the dropping arm 92, raises the left boom of the dropping arm 92, and discharges the rice discharging shaft 138 and the rice discharging valve 139 via the dropping arm 92. And the rice discharging valve 139 is closed. Next, when the dropping cam 141 further rotates counterclockwise, it rotates while pressing the left side of the dropping arm 92, and when the large diameter portion is separated from the roller 94, the left side of the dropping arm 92 is the rice discharging valve 139 and the like. , The rice discharging shaft 138 also moves downward, and the rice discharging valve 139 is opened (the phantom line in FIG. 10).

  The operation of the above example will be described.

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

  That is, after the power switch is turned on (step 1), setting of rice cooking conditions is input (step 2), and when the start switch 75 is pressed (step 3), the rice in the rice storage tank 4 is weighed by the measuring drum in step 4. Then, a set amount of rice is supplied to the rice washing tank 5 and the rice is washed in step 5.

  The rice washing process in step 5 includes a rice bran removing process in which rice is stirred while dripping water, a rice polishing process in which water is supplied and then drained and rice is stirred in a wet state, a rough rinsing process in which rice is stirred at a predetermined water level, and a water tank. It consists of a finishing rinsing step in which stirring is performed while overflowing.

  Next to the rice washing process in step 5 described above, the process proceeds to a water adding / decreasing process in step 6. In this step 6, based on the flow of FIG. 11, it is set to the "normal rice water addition / decrease mode" or the "porridge rice rice water addition / decrease mode" as described above, and the quantity, quality and temperature of the rice in the rice washing tank 3. The microcomputer calculates the amount of water according 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, and water is adjusted. do.

  The water addition and subtraction for ordinary rice cooking is about 1.2 times the amount of cooked rice, whereas the water addition and reduction for rice cooked with porridge rice requires about 5 times the amount of rice cooked, so it is significantly different. There is a limit to the amount that can be accommodated in a rice cooker, and even if a commercial rice cooker can be used to cook 5 shoes with normal rice, the porridge rice cooker is 2 shouts or less. Depending on whether or not the amount exceeds a predetermined amount, the control unit automatically selects the “normal rice water addition / draining mode” or the “porridge rice rice water addition / draining mode”, and the predetermined water addition / subtraction mode is obtained based on the selection. In addition, the operator does not need to select and set whether to cook normal rice or porridge rice, thereby simplifying the operation.

  In Step 7, the washed rice in the rice washing tank 5 and the water measured and adjusted 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 a lapse of a prescribed 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, and a predetermined cooked rice is completed.

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

  Further, in the above-described embodiment, the water addition / reduction is sequentially reduced from the full state of the rice washing tank by opening the water level valve 65, but the predetermined water amount is secured.However, the invention is not limited to this embodiment. It may be configured to manage.

  Next, the rice cooker 7 capable of cooking rice with porridge rice will be described. 2, 15 and 16, the rice cooker 7 is provided with a container 31 and a rice cooker lid 32 of a middle and high shape having a high center portion that covers the opening of the main body of the container 31 so as to be detachable. A supply hole 32h is formed at the center, and a slide shutter 33 as a supply hole opening / closing means is attached to be openable and closable so as to close the supply hole 32h.

  A part of the rice cooker lid 32 is configured as an openable and closable part 32b that can be opened and closed via its main part 32a and hinges 34,34. The opening / closing portion 32b is opened when the rice porridge is cooked, so that the steam in the rice porridge can be discharged and the rice liquor can be prevented from spilling over.

  The slide shutter 33 is slidably provided along guide rails 33a, 33a in the horizontal direction, and by opening the supply hole 32h, the rice falling from the rice washing tank 5 and the water addition / drainage are put into the rice cooker 31. It can be supplied.

  The opening / closing portion 32b of the rice cooker 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 an operator stands and performs various operations. Thereby, there is no obstruction member, and the operation of the opening / closing portion 32b is easy to perform. Note that the slide shutter 33 is provided on the main body side, and is configured to be controlled by left and right movement of an interlocking arm 33b that engages a central knob 32c of the rice cooker 32.

  A handle 35 is provided on the opening / closing portion 32b of the rice cooker lid 32. When pivoting upward around the hinges 34, 34, the operation can be easily performed due to the presence of the handle 35.

  The pivot 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 for turning the opening / closing portion 32b to hold it in the upright posture. . With this configuration, when the rice porridge rice is cooked, the opening / closing section 32b can be raised and held when opened, so that the steam rises while being guided by the opening / closing section 32b, so that the rising steam comes into contact with the lower outer surface of the rice washing tank 5 and is exposed. Less. As a result, dew condensation due to the above-mentioned adhesion to the wall surface is unlikely to occur, so that adhesion of rice can be prevented from remaining. Further, by providing the rotation axis of the opening / closing portion 32b below the outer peripheral portion of the rice washing tank 5 or a position outside the outer peripheral portion of the rice washing tank 5 having a circular shape in a plan view, 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 posture below the position, the rising steam is guided by the opening / closing portion 32b in the standing posture, so that almost all of the rice washing tank 5 is not exposed to the steam. The adhesion residue of rice due to the dew condensation can be reduced almost over the entirety.

  As the holding means 36 for holding the opening / closing portion 32b in the upright posture, positioning stopping collars 36, 36 incorporated in the rotating portion of the hinge 34 are interposed. As shown in FIG. 16, the hinge 34 includes a fixed hinge 34a connected to the main body 32a, a pivot hinge 34b connected to the opening / closing part 32b, and a connecting pin 34c. The center ring portion 34d of the portion 34a and the end ring portions 34e, 34e of the pivot side hinge portion 34b are connected by connecting pins 34c so that their axes are aligned. The center ring portion 34d and the end ring portion 34e. , 34e, the positioning stop collars 36, 36 are interposed. The connection pin 34c has a head and the other side has a nut fastening structure, and the positioning stop collars 36, 36 are fastened in a press-contact state when the two hinge portions 34a, 34b are connected by the connection pin 34c. Friction acts on the collars 36, 36, so that the rotation side hinge portion 34b can be held at an angle of about 90 ° with respect to the fixed side hinge portion 34a so that the opening / closing portion 32b stands upright. In the embodiment, the angle of 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 section 32b by the operator's handle 35 can be set at an intended angle by overcoming the frictional action.

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

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

Claims (5)

  An opening / closing unit that includes a rice cooker (31) below the rice washing tank (5), and allows a part of the rice cooker (32) to be opened and closed with the rice cooker (32) attached to the rice cooker (31). 32b) A rice washing / cooking apparatus characterized by comprising:   A supply hole (32h) is formed in the main part (32a) of the rice cooker lid (32) for supplying rice and water added and dropped from the rice washing tank (5) into the rice cooker (31). The rice washing rice cooker according to claim 1, wherein a supply hole opening / closing means (33) for opening and closing the supply hole (32h) is provided, and the opening / closing portion (32b) is provided in front of the supply hole opening / closing means (33). apparatus.   The hinge (34, 34) is provided between the main part (32a) and the opening / closing part (32b) of the rice cooker lid (32), and a handle (35) is provided in the opening / closing part (32b). A rice-washing / cooking apparatus according to item 1.   The supply hole opening / closing means (33) for opening and closing the supply hole (32h) is a slide shutter (33) that slides along a guide rail (33a), and is provided by the hinges (34, 34) of the opening / closing portion (32b). The rotation axis is configured to extend along the sliding direction of the slide shutter (33), and the opening / closing portion (32b) is held in an upright posture at the supply hole (32h) and the front position of the slide shutter (33). The rice washing and rice cooking device according to claim 3, comprising means (36). The rice-washing rice cooker according to claim 4, wherein the opening / closing portion (32b) is held in an upright position below an outer peripheral portion of the rice washing tank (5) having a circular shape in a plan view or a position outside the outer peripheral portion.

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