JP5929193B2

JP5929193B2 - Rice washing equipment

Info

Publication number: JP5929193B2
Application number: JP2011290370A
Authority: JP
Inventors: 山本　和彦; 山本　　和彦; 長谷　喜八郎; 喜八郎長谷; 滝本　秀夫; 秀夫滝本; 輝吉居
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2016-06-01
Anticipated expiration: 2031-12-29
Also published as: JP2013138745A

Description

本発明は、洗米及び水加減をする洗米装置に関する。 The present invention relates to a rice washing apparatus for washing rice and adjusting water.

従来、洗米タンクにて洗米した後に水加減して米と炊飯に必要な適量水とを下方に待機する炊飯釜に落下投入する形態としている（特許文献１）。
なお、この水加減を複数回にわたって行うことにより、お粥など大量の水を必要とする水加減でも、比較的小容量の洗米タンクで水加減できる構成としている（特許文献２）。 Conventionally, after washing in a rice washing tank, water is added and dropped, and rice and an appropriate amount of water necessary for cooking are dropped into a rice cooker waiting downward (Patent Document 1).
In addition, it is set as the structure which can add and subtract water with a comparatively small capacity | capacitance rice washing tank by performing this water addition and subtraction several times even if the water adjustment which requires large quantities of water, such as a rice cake, is carried out (patent document 2).

特開２００１−２１８６７６JP2001-218676 特許第３５２８３２０Patent No. 3528320

特許文献２によると、炊飯量が多くとも洗米タンクの容量を大きくしないで炊飯できるが、前・後の水加減工程と米排出時期について開示がなく、処理時間の短縮や、残米の処理について配慮を要する。また水加減の方法には給水状況を流量センサで検知しながら行う方法と、一旦洗米タンクに満水状態に給水し所定の排水を行って洗米タンクに残る水量を適量とする方法があるが両方に夫々長所・短所がある。本発明は洗米タンク容量の小型化を図りながら、炊飯する米の量の多少に応じて適した水加減を行なおうとする。 According to Patent Document 2, rice can be cooked without increasing the capacity of the washed rice tank even if the amount of cooked rice is large, but there is no disclosure about the front / rear hydration process and the rice discharge time, and the processing time is shortened and the remaining rice is processed. Consideration is required. In addition, there are two methods for adjusting the water level: one is to detect the water supply status with a flow sensor, and the other is to supply the rice washing tank to a full state, drain the water to a predetermined level, and adjust the amount of water remaining in the rice washing tank to an appropriate amount. Each has advantages and disadvantages. The present invention intends to reduce the capacity of the rice-washing tank and to adjust the water appropriately according to the amount of rice to be cooked.

この発明は、かかる技術的課題を解決するために次のような技術的手段を講ずる。
すなわち、請求項１記載の発明は、
投入した米を洗浄する洗浄工程と、炊飯用の水加減工程を洗米タンク（７）で行なう洗米装置において、洗米タンク（７）内に供給する米量（Ｒｎ）から炊飯に必要な水量（Ｑｎ）を算出する必要水量算出手段（Ｃ３）を備え、前記水加減工程は、この必要水量算出手段（Ｃ３）によって算出された必要水量（Ｑｎ）よりも少なく設定した供給水量（Ｑ´）を洗米後の米が存在する洗米タンク（７）に供給する前段水加減工程（Ｘ１）と、この前段水加減工程（Ｘ１）の水と米とを投下排出後に必要水量（Ｑｎ）と前段水加減水量（Ｑ´）との差の水量を洗米タンク（７）部から供給する後段水加減工程（Ｘ２）からなり、該後段水加減工程（Ｘ２）による水を投下排出する構成とし、
洗米タンク（７）に水を供給する水供給管（９，１６）と、水供給管（９，１６）から供給する水量を検出する流量センサ（２２，２２Ｄ）と、洗浄工程時の洗浄水を排水するときに使用する洗浄水排水管（１１）と、洗米タンク（７）の満水域に設けられる満水検出センサ（１３）と、水加減排水管（１２）とを設け、水加減工程で洗米タンク（７）内の水量を調節するのに、流量センサ（２２）による流量検出しながら設定水量を給水する第一水加減制御手段（Ｃ１）と、満水検出センサ（１３）が水を検出してから設定水量になるまで排水量を調節制御する第二水加減制御手段（Ｃ２）とを設け、前記洗米タンク（７）の米量が所定量（γ）以上のときには、第二水加減制御手段（Ｃ２）による前段水加減工程（Ｘ１）と後段水加減工程（Ｘ２）によって必要水量（Ｑｎ）を供給する構成とした洗米装置とする。 In order to solve this technical problem, the present invention takes the following technical means.
That is, the invention according to claim 1
In the rice washing apparatus that performs the washing step for washing the introduced rice and the water addition / reduction step for rice cooking in the rice washing tank (7), the amount of water (Qn) required for rice cooking from the amount of rice (Rn) supplied into the rice washing tank (7) ) For calculating the required water amount (C3), and the water adding and subtracting step is performed by washing the supplied water amount (Q ′) smaller than the required water amount (Qn) calculated by the required water amount calculating unit (C3). The pre-stage water adjustment process (X1) to be supplied to the rice washing tank (7) where the subsequent rice is present, and the required water quantity (Qn) and the pre-stage water adjustment quantity after dropping and discharging the water and rice of this pre-stage water adjustment process (X1) (Q ') comprises a post-stage water adjustment process (X2) for supplying the amount of water that is different from the washing rice tank (7), and drops and discharges water from the post-stage water adjustment process (X2) .
Water supply pipes (9, 16) for supplying water to the rice washing tank (7), flow rate sensors (22, 22D) for detecting the amount of water supplied from the water supply pipes (9, 16), and washing water during the washing process Water drainage pipe (11) used when draining water, a full water detection sensor (13) provided in the full water area of the rice washing tank (7), and a water drainage pipe (12) are provided. To adjust the amount of water in the rice washing tank (7), the first water adjustment control means (C1) for supplying the set amount of water while detecting the flow rate by the flow rate sensor (22), and the full water detection sensor (13) detect the water. And a second water moderation control means (C2) for adjusting and controlling the amount of drainage until the set amount of water is reached. When the amount of rice in the rice washing tank (7) is greater than or equal to a predetermined amount (γ), the second water moderation control Pre-stage water adjustment process (X1) and post-stage water adjustment work by means (C2) And rice washing device configured with supplying necessary amount of water (Qn) by (X2).

請求項２に記載の発明は、
洗米対象の米が無洗米であるか通常白米であるかを選択する選択手段（３０）またはこれらのいずれであるかを識別する識別手段（Ｃ４）を備え、無洗米を選択しまたは識別したときは、必要水量算出手段（Ｃ３）に基づく算出水量（Ｑｎ）を予め設定した分多い無洗米水量（Ｑｍ）に補正する無洗米水量補正手段（Ｃ５）を設け、無洗米を選択しまたは識別したときは、前段水加減工程（Ｘ１）と後段水加減工程（Ｘ２）によって必要水量（Ｑｍ）を給水する構成とした請求項１記載の洗米装置とする。 The invention described in claim 2
When selection means (C4) for selecting whether the rice to be washed is non-washed rice or normal white rice, or identification means (C4) for identifying which of these is selected, and when washing-free rice is selected or identified Is provided with wash-free rice water amount correction means (C5) for correcting the calculated water amount (Qn) based on the required water amount calculation means (C3) to a preset wash-free rice water amount (Qm), and selecting or identifying the wash-free rice When it is, it is set as the rice washing apparatus of Claim 1 made into the structure which water-supplys required water quantity (Qm) by a front | former stage water adjustment process (X1) and a back | latter stage water adjustment process (X2) .

請求項１記載の発明においては、前段水加減工程（Ｘ１）では必要水量（Ｑｎ）の例えば９割の水量（Ｑ´）を給水して該水と米とを炊飯釜等の収容容器に排出し、その後、残りの水量を後段水加減工程Ａ（Ｘ２）で給水することで、収容容器には必要水量（Ｑｎ）が確保でき、一度に必要水量（Ｑｎ）を洗米タンク（７）に確保する必要がなく、これより少ない水量の確保で足り、洗米タンク（７）を小型化できる。 In the first aspect of the invention, in the pre-stage water adjustment step (X1), for example, 90% of the required amount of water (Qn) (Q ') is supplied and the water and rice are discharged into a container such as a rice cooker. Then, by supplying the remaining amount of water in the post-stage water adjustment process A (X2), the necessary water amount (Qn) can be secured in the container and the necessary water amount (Qn) is secured in the washing rice tank (7) at a time. Therefore, it is sufficient to secure a smaller amount of water, and the washing tank (7) can be downsized.

また、洗米タンク（７）の米量が所定量（γ）以上のときには、第二水加減制御手段（Ｃ２）による前段水加減工程（Ｘ１）と後段水加減工程（Ｘ２）によって必要水量（Ｑｎ）を給水するから、水加減精度を高めながら排水無駄を少なくできる。 Further , when the amount of rice in the rice washing tank (7) is equal to or greater than a predetermined amount (γ), the necessary water amount (Qn) is obtained by the first-stage water adjustment process (X1) and the second-stage water adjustment process (X2) by the second water adjustment control means (C2). ) Is supplied, it is possible to reduce waste water while increasing the water accuracy.

請求項２記載の発明においては、同じ米量の場合、標準白米に比較して無洗米の方が水加減をやや多くすることが慣用されているが、この多い目の水加減に対応して前・後段水加減工程（Ｘ１，Ｘ２）を採用することで洗米タンク（７）の小型化が図れる。 In the invention according to claim 2, in the case of the same amount of rice, it is commonly used that washing-free rice slightly increases the amount of water compared to standard white rice. The rice washing tank (7) can be downsized by adopting the front / rear stage water addition / reduction steps (X1, X2).

洗米炊飯装置の正面図Front view of the rice-washing rice cooker 洗米炊飯装置の側面図Side view of the rice-washing rice cooker 平面から見た覆い体の説明をする図A figure explaining the cover as seen from the plane 水の供給及び排水を示す概要図Schematic diagram showing water supply and drainage 制御ブロック図Control block diagram フローチャート図Flow chart フローチャート図Flow chart フローチャート図Flow chart フローチャート図Flow chart フローチャート図Flow chart タイムチャート図Time chart diagram （イ）（ロ）（ハ）洗米タンク部切断端面図(I) (b) (c) Cutting end view of the rice washing tank （イ）貯米庫部斜視図、（ロ）（ハ）その一部の断面図(B) Perspective view of rice storage section, (b) (c) Cross-sectional view of a part thereof （イ）機体フレーム下部の斜視図、（ロ）その一部平面図(A) Perspective view of the lower part of the fuselage frame, (B) Partial plan view thereof

本発明の実施の形態である洗米炊飯装置の基本構成について図に基づいて説明する。 The basic structure of the rice-washing rice cooker which is embodiment of this invention is demonstrated based on a figure.

機体フレーム１に貯米庫２を取り付け、貯米庫２の下部には洗米器３を取り付けている。洗米器３の下方には、左右２位置に、ガスコンロ上に載置された炊飯釜４，４を設け、これら炊飯釜４，４はガスコンロと共に左右の引き出し５，５に載置され、左右が独立的に前側に引き出し可能に構成している。
上記のように、この実施の形態の洗米炊飯装置は炊飯釜４，４を左右に２個並列して設け、貯米庫２と洗米器３とが一体となって機体フレーム１に沿って左右の炊飯釜４，４の上方をスライド移動できる構成としている。 A rice storage box 2 is attached to the machine body frame 1, and a rice washer 3 is attached to the lower part of the rice storage box 2. Below the rice washer 3, rice cookers 4, 4 placed on the gas stove are provided at the left and right positions, and these rice cookers 4, 4 are placed on the left and right drawers 5, 5 together with the gas stove. It is configured to be pulled out to the front side independently.
As described above, the rice-washing rice cooker of this embodiment is provided with two rice cookers 4 and 4 arranged in parallel on the left and right sides, and the rice storage 2 and the rice washer 3 are integrated with the left and right along the body frame 1. It is set as the structure which can carry out sliding movement above the rice cooking pots 4 and 4.

貯米庫２の正面側には制御部Ｂを内蔵する操作盤６を設け、所望の洗米炊飯制御を実行できる。 An operation panel 6 with a built-in control unit B is provided on the front side of the rice storage 2 so that desired rice washing rice cooking control can be executed.

洗米器３は、円錐状のホッパ形状の洗米タンク７を備える。この洗米タンク７は貯米庫２の繰出排出部下面に配置すべく対応させて機体フレーム１に吊下状に支持される。該洗米タンク７の側面には洗米タンク７内の点検用の開閉窓８を形成し、内部には縦軸１８ａ回りに回転する攪拌棒１８を設け、下端部には周囲を覆う平面視円型のジャケット部１９を取り付けている。洗米タンク７のホッパ状部下部とジャケット部１９との境界部に米粒を漏下させない程度の開口を持つ網状体からなるフィルタを設けている。ジャケット部１９には洗米タンク７内の下部から洗浄用の水を給水する下給水管９と、洗米タンク７内で洗浄時に気泡を起すための空気を給水する空気管１０と、洗浄水を排水するための洗浄水排水管１１と、水加減水を排水する水加減用水排水管１２を接続している。 The rice washing machine 3 includes a conical hopper-shaped rice washing tank 7. The rice washing tank 7 is supported in a suspended manner on the machine body frame 1 so as to correspond to the lower surface of the feeding and discharging portion of the rice storage 2. An opening / closing window 8 for inspection in the rice washing tank 7 is formed on the side surface of the rice washing tank 7, a stirring rod 18 that rotates around the vertical axis 18 a is provided inside, and a circular shape in plan view covering the periphery is provided at the lower end portion. The jacket portion 19 is attached. At the boundary between the lower part of the hopper-like part of the rice washing tank 7 and the jacket part 19, a filter made of a net-like body having an opening to the extent that rice grains do not leak is provided. The jacket part 19 has a lower water supply pipe 9 for supplying cleaning water from the lower part of the rice washing tank 7, an air pipe 10 for supplying air for generating bubbles during washing in the rice washing tank 7, and draining the washing water. For this purpose, a washing water drain pipe 11 and a water drainage pipe 12 for draining water are connected.

前記洗米タンク７の上部の満水域に満水検出センサ１３を設ける。水の有無を検出でき、水位の上昇と共に水検知でオンし、水位の低下で水の非検知でオフする構成である。満水検出センサ１３の上側にはオーバーフロー口１４を設けこのオーバーフロー口１４にオーバーフロー排水管１５を接続している。そして、洗米タンク７の上面には水加減用の水を給水する上給水管１６の給水口１６ａとしてのノズルをのぞませて設けている。 A full water detection sensor 13 is provided in a full water area above the rice washing tank 7. It can detect the presence or absence of water, and turns on when water is detected as the water level rises, and turns off when water is not detected when the water level falls. An overflow port 14 is provided above the full water detection sensor 13, and an overflow drain pipe 15 is connected to the overflow port 14. And the nozzle as the water supply port 16a of the upper water supply pipe | tube 16 which supplies the water for water adjustment is provided in the upper surface of the rice washing tank 7, and it is provided.

また、前記洗米タンク７の下部において、ホッパ状下端部開口７Ｅを開閉する投下バルブ２１を備える。この投下バルブ２１は、垂直作動アーム２１ａの下端に装着され、該作動アーム２１ａの上下動に連動して開口７Ｅを開閉できる構成としている。
洗浄水と水加減水を給水する水源（水道）１７の水栓２０の下流側から上給水管１６と下給水管９とに分岐し、上給水管１６には流量センサ２２と上給水管バルブ２３を設け、下給水管９には下給水管バルブ２４を設けている。空気管１０はコンプレッサ２５に接続している。 Further, a dropping valve 21 for opening and closing the hopper-like lower end opening 7E is provided at the lower part of the rice washing tank 7. The dropping valve 21 is attached to the lower end of the vertical operating arm 21a, and is configured to open and close the opening 7E in conjunction with the vertical movement of the operating arm 21a.
The upper water supply pipe 16 and the lower water supply pipe 9 are branched from the downstream side of the faucet 20 of the water source (water supply) 17 for supplying the cleaning water and the water supply / reduction water. 23, and the lower water supply pipe 9 is provided with a lower water supply pipe valve 24. The air pipe 10 is connected to the compressor 25.

洗浄水排水管１１には洗浄水排水管バルブ２６を、水加減用水排水管１２には水加減用水排水管バルブ２７を設け、洗浄水排水管バルブ２６と水加減用水排水管バルブ２７の下流側は排水ボックス２９に合流する。 The cleaning water drain pipe 11 is provided with a cleaning water drain pipe valve 26, and the water adjustment water drain pipe 12 is provided with a water adjustment water drain pipe valve 27, and downstream of the cleaning water drain pipe valve 26 and the water adjustment water drain pipe valve 27. Joins the drainage box 29.

次に、洗米炊飯工程の概要について説明する。なお基本フローチャートは図を示している。 Next, the outline of the rice washing rice cooking process will be described. The basic flowchart shows a diagram.

作業者が操作盤６で炊飯する米の量を設定して起動スイッチ（図示せず）を操作すると、制御部Ｃは各部を起動し、貯米庫内の米はこの操作盤６で設定された米量Ｒｎ分が繰出回転バルブ（図示せず）の回転に伴って、洗米タンク７に供給される（図６ステップ１０３、米計量・供給工程）。 When the operator sets the amount of rice to be cooked on the operation panel 6 and operates a start switch (not shown), the control unit C activates each part, and the rice in the storage box is set on the operation panel 6. The amount of rice Rn is supplied to the rice washing tank 7 as the feed rotary valve (not shown) rotates (step 103 in FIG. 6, rice metering / supplying step).

次に下給水管バルブ２４が開き、下給水管９を通過した水がジャケット部１９を経て洗米タンク７内に給水され、コンプレッサ２５が駆動し空気管１０より空気が供給され洗米タンク７内の水中で気泡が生じる。
縦軸１８ａ周りに回転する攪拌棒１８の攪拌と気泡の作用により、水流の気泡水が米粒に作用し洗米タンク７内の米は洗米される（同ステップ１０４、洗米工程）。洗米工程が終了するときには下給水管バルブ２４は閉じられ、コンプレッサ２５と攪拌棒１８は停止している。そして、洗米工程終了後、洗浄水排水管バルブ２６が開き洗浄水が洗浄水排水管１１から排水ボックス２９へ排水される。 Next, the lower water supply pipe valve 24 is opened, and the water that has passed through the lower water supply pipe 9 is supplied into the rice washing tank 7 through the jacket portion 19, and the compressor 25 is driven to supply air from the air pipe 10. Bubbles are generated in the water.
By the stirring of the stirring rod 18 rotating around the vertical axis 18a and the action of bubbles, the bubbling water in the water stream acts on the rice grains and the rice in the rice washing tank 7 is washed (step 104, rice washing step). When the rice washing process is completed, the lower water supply pipe valve 24 is closed, and the compressor 25 and the stirring rod 18 are stopped. After the washing process, the washing water drain pipe valve 26 is opened and the washing water is drained from the washing water drain pipe 11 to the drain box 29.

上記洗米工程後の水加減工程（同ステップ１０５）について以下詳述する。 The water adjustment step (step 105) after the rice washing step will be described in detail below.

前記のように、洗米タンク７の上部から上給水管１６で水供給可能に設けられ、その途中には流量センサ２２を備える。ジャケット部１９の下給水管９によって洗米タンク７下側から給水できる。この下給水管９の途中には流量センサ２２Ｄを備える。
水加減は以下の方法がある。洗米工程後には上給水管バルブ２３または下給水管バルブ２４が開き、上給水管１６または下給水管９から洗米タンク７内に水加減水が給水される。この水加減水は、洗米タンク７に供給した米量Ｒｎに応じた水量とされる。制御部Ｃには必要水量算出手段Ｃ３を備え、必要水量Ｑｎは米量Ｒｎによって予め算出し、あるいは算出表に基づいて設定される。この水量Ｑｎを流量センサ２２または２２Ｄによる流量検出に基づき設定水量を得る第一水加減制御手段Ｘ１に基づく方法、または上給水管１６または下給水管９あるいは上下給水管同時に給水し満水検出センサ１３が満水を検出してから給水を遮断し次いで水加減用水排水管バルブ２７を開いてこの満水検出センサ１３が水検知有りから無しとなる瞬間から設定水量になるまでの排水量Ｅｎを調整制御する第二水加減制御手段Ｘ２に基づく方法がある。なお、第二水加減制御手段Ｘ２に基づく排水量Ｅｎの検出は、水加減水排水管バルブ２７の開時間ＴＥの管理によりＥｎ≒αＴＥ（αは定数）なる算出式で得る方法、水加減水排水管バルブ２７の下手側に設けた排水流量センサ（図示せず）の検出結果による方法、洗米タンク７重量を管理する方法等がある。
ここで本発明の改良された水加減処理について説明する。 As described above, water is supplied from the upper portion of the rice washing tank 7 through the upper water supply pipe 16, and the flow sensor 22 is provided in the middle thereof. Water can be supplied from the lower side of the rice washing tank 7 by the lower water supply pipe 9 of the jacket portion 19. In the middle of the lower water supply pipe 9, a flow sensor 22D is provided.
There are the following methods for adding water. After the rice washing process, the upper water supply pipe valve 23 or the lower water supply pipe valve 24 is opened, and water is added or reduced from the upper water supply pipe 16 or the lower water supply pipe 9 into the rice washing tank 7. This water addition / subtraction water is the amount of water corresponding to the amount of rice Rn supplied to the rice washing tank 7. The control unit C includes a required water amount calculation unit C3, and the required water amount Qn is calculated in advance by the rice amount Rn or set based on a calculation table. A method based on the first water adjustment control means X1 that obtains a set water amount based on the flow rate detection by the flow rate sensor 22 or 22D, or the full water detection sensor 13 that supplies the water amount Qn simultaneously with the upper water supply pipe 16, the lower water supply pipe 9, or the upper and lower water supply pipes. After the full water is detected, the water supply is shut off, and then the water drainage pipe valve 27 for water adjustment is opened, and the drainage amount En from the moment when the full water detection sensor 13 is detected to the time when the water detection is detected to the set water amount is adjusted and controlled. There is a method based on the two-water mode control means X2. It should be noted that the detection of the waste water amount En based on the second water control / control unit X2 is a method of obtaining by the calculation formula En≈αTE (α is a constant) by managing the open time TE of the water control / drainage drain valve 27, There are a method based on the detection result of a drainage flow sensor (not shown) provided on the lower side of the pipe valve 27, a method for managing the weight of the rice washing tank 7, and the like.
Here, the improved water addition / reduction process of the present invention will be described.

洗米タンク内の米量Ｒｎから必要な炊飯水量Ｑｎを算出する必要水量算出手段Ｃ３によって算出された必要水量Ｑｎよりも少なく設定した供給水量Ｑ´＝（Ｑｎ−β*Ｑｎ）（ここでβは、０．１前後の一定値）を上給水管１６または下給水管９により洗米タンク７に供給する前段水加減工程Ｘ１と、この前段水加減工程Ｘ１の水と米とを炊飯釜４に投下排出後に、必要水量と前段水加減水量との差の水量（β＊Ｑｎ）を上給水管１６から洗米タンク７に給水する後段水加減工程Ｘ２を備え、後段水加減工程Ｘ２による水も炊飯釜４に排出するよう構成している。 Supply water amount Q ′ = (Qn−β * Qn) (where β is set to be less than the required water amount Qn calculated by the required water amount calculating means C3 for calculating the required rice cooking water amount Qn from the rice amount Rn in the rice washing tank , A constant value of about 0.1) is supplied to the rice washing tank 7 through the upper water supply pipe 16 or the lower water supply pipe 9, and the water and rice of this front stage water adjustment process X1 are dropped into the rice cooker 4. After the discharge, a post-stage water control process X2 is provided for supplying the water amount (β * Qn) between the required water quantity and the pre-stage water control quantity from the upper water supply pipe 16 to the washing tank 7. 4 is configured to be discharged.

上記の実施例では、前段水加減工程Ｘ１では必要水量Ｑｎの９割の水量Ｑ´を供給して投下バルブ２１の開弁作動によって該水と米とを炊飯釜４に排出し、その後、残り１割の水量を後段水加減工程Ｘ２で同様に開弁作動で供給することで、炊飯釜４には必要水量Ｑｎが確保できる。このように構成すると、一度に必要水量Ｑｎを洗米タンク７に確保する必要がなく、これより少ない水量で足り、洗米タンク７を小型化できる。なお、後段水加減工程Ｘ２では上給水管１６によって給水する構成であるから、ノズル先端からの拡散水によって洗米タンク７の内周を洗浄できる効果がある。 In the above-described embodiment, the water quantity Q ′ that is 90% of the required water quantity Qn is supplied in the front stage water adjustment process X1, and the water and rice are discharged to the rice cooker 4 by the opening operation of the dropping valve 21. The required amount of water Qn can be secured in the rice cooker 4 by supplying 10% of the amount of water by the valve opening operation in the subsequent stage water addition / subtraction process X2. If comprised in this way, it is not necessary to ensure the required amount of water Qn in the rice washing tank 7 at once, and the amount of water smaller than this is sufficient, and the rice washing tank 7 can be reduced in size. In addition, since it is the structure which supplies with the upper water supply pipe | tube 16 in the back | latter stage water adjustment process X2, there exists an effect which can wash | clean the inner periphery of the rice washing tank 7 with the diffusion water from a nozzle front-end | tip.

なお、図７において、必要水量算出手段Ｃ３は予め設定した炊飯米量、即ち貯米庫２からの投入米量Ｒｎから必要水量Ｑｎを算出する（ステップ２０１）。洗米工程（ステップ２０２）を経て、水加減処理に移る。まず給水量Ｑ´を算出して前段水加減工程Ｘ１が始まり（ステップ２０３，２０４）、この給水量Ｑ´に達すると前段水加減工程Ｘ１は終了する（ステップ２０５）。ついで、米と前段水加減水Ｑ´を洗米タンク７下端の投下バルブ２１が開いて下方に蓋を開いて待機する炊飯釜４に投下排出する（ステップ２０６）。
上記の前段水加減工程Ｘ１による給水量Ｑ´で不足する水量（＝Ｑｎ−Ｑ´）の補充が後段水加減工程Ｘ２で行われ、その開始（ステップ２０７）にて上給水管１６の給水ノズルにて洗米タンク７の上方から内壁に向けて撒水される（ステップ２０８）。この時上給水管１６の途中に設けた流量センサ２２によって給水量が検出されていて、この検出水量が上記不足する水量となると後段水加減工程Ｘ２は終了する（ステップ２０９〜２１１）。そしてこの後段水加減水が前記洗米タンク７の下端の投下バルブ２１を開いて炊飯釜４内に追加投入される（ステップ２１２）。 In FIG. 7, the required water amount calculation means C3 calculates the required water amount Qn from the preset amount of cooked rice, that is, the input rice amount Rn from the rice storage 2 (step 201). The rice washing process (step 202) is followed by water addition / reduction processing. First, the water supply amount Q ′ is calculated and the pre-stage water adjustment process X1 starts (steps 203 and 204), and when the water supply quantity Q ′ is reached, the pre-stage water adjustment process X1 ends (step 205). Next, the rice and the pre-stage water adjustment water Q 'are dropped and discharged to the rice cooker 4 waiting for the drop valve 21 at the lower end of the rice washing tank 7 to open and the lid to open downward (step 206).
Replenishment of the amount of water (= Qn−Q ′) that is deficient in the water supply amount Q ′ in the preceding stage water adjustment / control step X1 is performed in the rear stage water adjustment / control step X2, and at the start (step 207), the water supply nozzle of the upper water supply pipe 16 Then, the water is washed from above the rice washing tank 7 toward the inner wall (step 208). At this time, the water supply amount is detected by the flow rate sensor 22 provided in the middle of the upper water supply pipe 16, and when the detected water amount becomes the above-mentioned insufficient water amount, the post-stage water adjustment process X2 ends (steps 209 to 211). Then, this post-stage water addition / subtraction water is added to the rice cooker 4 by opening the dropping valve 21 at the lower end of the rice washing tank 7 (step 212).

上記のように水加減が前段と後段の２工程（または３工程以上に設定してもよい）によって行う構成としたから、タンク容量の大きい洗米タンク７を準備せずとも多量の炊飯米に対応できる。また、前記のように、前段水加減工程Ｘ１における水供給は下供給管９から行い後段水加減工程Ｘ２における水供給は上供給管１６から行うことによって、水加減量を安定的に精度よく設定できかつ洗米タンク７内の残米を少なくできる。 As described above, water is added and subtracted in two steps (or three or more steps), so it can handle a large amount of cooked rice without preparing a large washing tank 7 with a large tank capacity. it can. In addition, as described above, the water supply in the front stage water adjustment process X1 is performed from the lower supply pipe 9, and the water supply in the rear stage water adjustment process X2 is performed from the upper supply pipe 16, so that the water adjustment amount can be set stably and accurately. And the remaining rice in the washing tank 7 can be reduced.

なお、図７による実施例において、ステップ２０７の後段水加減水の工程開始の時期はステップ２０６の前段水加減水と米の投下排出途中から開始させてもよい。このように構成すると、給水ノズルによる後段水加減水の投入時間が短縮でき、この開始時期が投下排出のため流動状態の米に作用して壁面への付着を少なくする。 In the embodiment shown in FIG. 7, the start of the subsequent water addition / reduction process in step 207 may be started in the middle of the previous stage water addition / reduction and rice dropping / discharge in step 206. If comprised in this way, the injection | throwing-in time of the back | latter stage water addition / reduction by a water supply nozzle can be shortened, and this start time acts on the rice in a fluid state for dropping discharge, and reduces adhesion to a wall surface.

また、後段水加減工程Ｘ２においては、洗米タンク７の下端の図外投下バルブを常時開放させておくことで更に時間短縮の効果がある。 Further, in the latter-stage water adjustment process X2, there is an effect of further shortening the time by always opening the unillustrated drop valve at the lower end of the rice washing tank 7.

図７の例において、前段水加減工程を以下のように構成することで排水の無駄を少なくする。すなわち、設定されて炊飯米量から必要水量Ｑｎを算出し、前段水加減工程が開始される（ステップ３０１〜３０３）。ここで、前記洗米タンク７の米量Ｒｎが所定量γ以上のときには、前記第二水加減制御手段Ｃ２によって前段水加減工程Ｘ１の処理を行い（ステップ３０５）、ついで後段水加減工程Ｘ２によって必要水量を給水するように構成する（図８）。前記第二水加減制御手段Ｃ２による給水は、一旦満水域まで洗米タンク７内に貯水した後排水量Ｅｎを管理することで所定の水加減を得る構成であるから、放水状に撒かれる第一水加減制御手段Ｃ１に比較して所定の水加減量への精度を高められる利点がある。ところが、第二水加減制御手段Ｃ２で一旦満水域まで貯水する工程を必要とするため必要以上の水を洗米タンク７に給水しなければならず、炊飯する米が少ないほど水の無駄が生じる。上記の事情により、前記のように米量Ｒｎが所定量γ以上（例えば、最大炊飯米量の８割以上）の場合に限って第二水加減制御手段Ｃ２を実行することによって、水加減精度を高めながら排水無駄を少なくし得る。またステップ３０４で炊飯米量Ｒｎが所定量γ以下のときは洗米タンク７の内壁に向かって放水状に上給水管１６の給水ノズルから水を撒きつつこの給水量を検出して前段水加減を行う（ステップ３０６）。 In the example of FIG. 7, waste water waste is reduced by configuring the pre-stage water adjustment step as follows. That is, the required water amount Qn is calculated from the amount of cooked rice set, and the pre-stage water adjustment process is started (steps 301 to 303). Here, when the rice amount Rn in the rice washing tank 7 is equal to or greater than the predetermined amount γ, the second water control / control unit C2 performs the pre-stage water control process X1 (step 305), and then the post-stage water control process X2 is necessary. It is configured to supply water (FIG. 8). Since the water supply by the second water moderation control means C2 is configured to obtain a predetermined water level by managing the drainage amount En after it has been stored in the washing tank 7 until it reaches the full water level, the first water is poured in a water discharge state. There is an advantage that the accuracy to a predetermined amount of water can be increased as compared with the control unit C1. However, since the step of temporarily storing water up to the full water area by the second water addition / decrease control means C2 is necessary, more water than necessary must be supplied to the washing tank 7, and the less rice is cooked, the more waste of water occurs. Due to the above circumstances, the water addition / reduction control means C2 is executed only when the rice amount Rn is equal to or greater than the predetermined amount γ (for example, 80% or more of the maximum cooked rice amount) as described above. Waste water can be reduced while increasing In step 304, when the amount of cooked rice Rn is equal to or less than the predetermined amount γ, the amount of water supplied is detected by sprinkling water from the water supply nozzle of the upper water supply pipe 16 in a discharge manner toward the inner wall of the rice washing tank 7. Perform (step 306).

ここで図８において、第一水加減制御手段Ｃ１の実行の際、上記実施例では上給水管１６からの給水量を検出することで所定の水量を得る構成としたが、下給水管９からの給水を行いながら流量センサ２２Ｄにて給水量を検出する構成としてもよい。このような上給水又は下給水を選択する切替手段を設けておき、実際の給水事情や環境に鑑みながら適当な方を選択するとよい。また、下給水と上給水の両者で所定の水加減水を得ることもできる。このように構成すると、前段水加減工程Ｘ１の短縮化が図れ、作業時間を短縮できる。 Here, in FIG. 8, when the first water amount control means C <b> 1 is executed, in the above-described embodiment, the predetermined amount of water is obtained by detecting the amount of water supplied from the upper water supply pipe 16. It is good also as a structure which detects the amount of water supply with the flow sensor 22D, supplying water. Switching means for selecting such upper water supply or lower water supply is provided, and an appropriate one may be selected in view of actual water supply circumstances and environment. Moreover, a predetermined water amount can be obtained by both the lower water supply and the upper water supply. If comprised in this way, shortening of the pre-stage water adjustment process X1 can be aimed at, and work time can be shortened.

また、洗米対象の米が無洗米であるか通常白米であるかを選択する選択手段としての無洗米選択スイッチ３０を設け、このスイッチ３０が無洗米を選択すると前記前段水加減工程Ｘ１と後段水加減工程Ｘ２とをもって必要水量Ｑｍを得る構成としている。同じ米量の場合、標準白米に比較して無洗米の方が水加減をやや多くすることが慣用されているが（例えば通常白米の１０〜１５％程度多くする）、この多い目の水加減に対応して前・後段水加減工程Ｘ１，Ｘ２を採用することで洗米タンク７の小型化が図れる。なお、上記の実施例では無洗米選択スイッチ３０によって無洗米か通常白米かを選択する構成としたが、米粒への付着糠を直接光学的に検出して無洗米か通常白米かを識別する識別手段Ｃ４を構成してもよく、さらに識別手段Ｃ４としては洗米タンク７の浮遊糠の状況を検出することによって無洗米であることを推測する構成でもよい。 Further, there is provided a no-wash rice selection switch 30 as a selection means for selecting whether the rice to be washed is non-washed rice or normal white rice. When this switch 30 selects no-wash rice, the pre-stage water control step X1 and the post-stage water The required amount of water Qm is obtained with the adjusting step X2. In the case of the same amount of rice, it is commonly used to wash water a little more with non-washed rice compared to standard white rice (for example, about 10-15% more than normal white rice) The rice washing tank 7 can be downsized by adopting the front / rear stage water addition / reduction steps X1 and X2 corresponding to the above. In the above-mentioned embodiment, the washing-free rice selection switch 30 selects the washing-free rice or the normal white rice. However, it is an identification that discriminates the washing-free rice from the normal white rice by directly optically detecting wrinkles on the rice grains. The means C4 may be configured, and the identifying means C4 may be configured to detect that the rice is not washed by detecting the state of floating rice cake in the rice washing tank 7.

次いで図９について、洗米対象の米が無洗米であるか通常白米であるかを選択する選択手段３０または識別手段Ｃ４の識別結果により無洗米を選択したときは、制御部Ｃは無洗米水量補正手段Ｃ５により算出水量Ｑｎを予め設定した分多い無洗米水量Ｑｍ（＝δＱｎ、δは１．１０〜１．１５）に補正する（ステップ４０１〜４０４）。なお、通常白米の最大洗米量Ｒmaxに対して無洗米の許容洗米量Ｒexを所定に小さく設定して、これを越える洗米量の設定がなされたときはブザーで警告する（ステップ４０５，４０６）。なお、ステップ４０５でＲｎ＞Ｒexと判定されたときは炊飯米量を再設定することで（ステップ４０１）、必要水量Ｑｍを所定に確保できる（ステップ４０２〜４０５）。なお、ステップ４０３で通常白米と判定されるときは、必要水量Ｑｎに設定される（ステップ４０７）。 Next, with respect to FIG. 9, when the washing-free rice is selected according to the identification result of the selection means 30 or the identification means C4 for selecting whether the rice to be washed is non-washed rice or normal white rice, the control unit C corrects the washing-free water quantity. The calculated amount of water Qn is corrected by means C5 to a predetermined amount of unwashed rice water Qm (= δQn, where δ is 1.10 to 1.15) (steps 401 to 404). Incidentally, the allowable washing amount Rex for non-washed rice is set to be a predetermined small amount with respect to the maximum washing amount Rmax for normal white rice, and a warning is given with a buzzer when a washing amount exceeding this is set (steps 405 and 406). In addition, when it determines with Rn> Rex at step 405, the required amount of water Qm can be ensured predetermined by resetting the amount of cooked rice (step 401) (steps 402-405). In addition, when it determines with normal white rice in step 403, it sets to the required water quantity Qn (step 407).

洗米タンク７の底部から前記投下バルブ２１の開弁作動時に、蓋を開放状態で待機する炊飯釜４に米及び水加減水は投下排出される。この後、炊飯工程が開始される。 When the dropping valve 21 is opened from the bottom of the rice washing tank 7, the rice and the hydrated water are dropped and discharged to the rice cooker 4 waiting with the lid open. After this, the rice cooking process is started.

以上、米計量・供給工程、洗米工程、水加減工程及び炊飯工程は連続して自動的に行なうことができる（図６ステップ１０１〜１０７）。 As described above, the rice weighing / feeding step, the rice washing step, the water addition / reduction step, and the rice cooking step can be performed automatically and continuously (steps 101 to 107 in FIG. 6).

また、洗米炊飯の作業形態として操作盤６で設定すると即時に洗米炊飯工程を行なう通常機能と、操作盤６で予め炊飯開始時刻や炊飯完了時刻等の日時を指定して洗米・炊飯する予約機能が可能である。すなわち、この予約機能は前日の夜に、例えば翌日の朝に炊飯された米が完成しているように予め設定することができる。 In addition, a normal function that immediately performs the rice-washing rice cooking process when the operation mode of rice-washing rice is set on the operation panel 6 and a reservation function that specifies the date and time such as the rice cooking start time and rice cooking completion time in advance on the operation panel 6 Is possible. That is, this reservation function can be set in advance so that the rice cooked in the morning of the previous day, for example, the next morning is completed.

図１０は前記の水加減工程において、第一水加減制御手段Ｃ１を採用する場合に、流量センサ２２，２２Ｄが異常となった場合の対応に関するものである。 FIG. 10 relates to a response when the flow rate sensors 22 and 22D become abnormal when the first water level control unit C1 is employed in the water level control step.

フローチャートに基づき、洗米炊飯条件を設定し、起動スイッチを入れると、各部の運転及び各種データの取り込みが行われる（ステップ５０１〜５０３）。直ちに流量センサ２２（２２Ｄ）の流量チェックが開始され（ステップ５０４）、流量≒０か否かが判定され（ステップ５０５）、この判定で略０の状態であると判定されると、ブザー警告し（ステップ５０６）、給水の元栓２０の開き忘れを問う画面が表示され（ステップ５０７）、オペレータの「はい」「いいえ」回答操作による入力を受け、「はい」選択で元栓２０開状態の場合には、第二水加減制御手段Ｃ２に移行する（ステップ５０８〜５１０）、給水は継続しあるいは上下給水管両方からの給水に切替わり、満水検出センサ１３の検出結果に基づき排水処理して適正な水量を得る（ステップ５１４）。この場合、画面には「応急運転」の旨表示出力する（ステップ５１４）。 Based on the flowchart, when the rice-washing rice cooking conditions are set and the start switch is turned on, the operation of each unit and the acquisition of various data are performed (steps 501 to 503). Immediately after the flow rate check of the flow rate sensor 22 (22D) is started (step 504), it is determined whether or not the flow rate is approximately zero (step 505). If it is determined that the state is substantially zero, a buzzer warning is issued. (Step 506), a screen asking whether to forget to open the water supply main tap 20 is displayed (Step 507). When the operator inputs “Yes” and “No” answers, and “Yes” is selected, the main plug 20 is open. Shifts to the second water addition / subtraction control means C2 (steps 508 to 510), water supply continues or is switched to water supply from both the upper and lower water supply pipes, and the wastewater treatment is performed on the basis of the detection result of the full water detection sensor 13. The amount of water is obtained (step 514). In this case, a display indicating “Emergency operation” is output on the screen (step 514).

このように、第一水加減制御手段Ｃ１実行による水加減設定中に流量センサ２２（２２Ｄ）の異常が検知された場合には、洗米タンク７内の水の貯留状況に関わらずそのまま第二水加減制御手段Ｃ２に切替えることにより、満水検出センサ１３の検出状況に基づいて水加減処理を行うことができ、作業中断の恐れがない。 As described above, when an abnormality of the flow sensor 22 (22D) is detected during the water adjustment setting by the execution of the first water adjustment control means C1, the second water is left as it is regardless of the water storage state in the rice washing tank 7. By switching to the moderation control means C2, the water leveling process can be performed based on the detection status of the full water detection sensor 13, and there is no risk of work interruption.

図１１は、前記米と水加減水を投下バルブ２１の開弁動作と共に、前記空気管１０からの気泡を発生しながら、併せて攪拌棒１８を駆動することで投下排出性を向上させる場合の改良構成に関するものである。 FIG. 11 shows a case in which dropping and discharging performance is improved by driving the stirring rod 18 together with the opening operation of the dropping valve 21 and the generation of bubbles from the air pipe 10 together with the opening operation of the dropping valve 21. This relates to an improved configuration.

従来、水加減を前記第二水加減制御手段によって実行する場合、投下バルブの開作動出力よりも先行して気泡発生のための空気管１０による気泡供給及び攪拌棒１８駆動の各出力を行わせる構成とし洗米洗浄効果の向上促進を図ったが、オーバーフロー口１４から米と水が流出する欠点があった。そこで、炊飯米量が所定以上の場合には、上記の先行出力でなく同時出力とすることで（図１１（ロ））、従来の欠点を解消し残米を少なくでき、ひいては洗米及び水加減の時間の短縮に寄与する。 Conventionally, when water addition / reduction is executed by the second water addition / decrease control means, each output of bubble supply by the air pipe 10 for generating bubbles and driving of the stirring rod 18 is performed prior to the opening operation output of the dropping valve. Although the composition was promoted to improve the washing effect of the washed rice, there was a drawback that the rice and water flowed out from the overflow port 14. Therefore, when the amount of cooked rice is more than a predetermined value, by using simultaneous output instead of the preceding output (FIG. 11 (b)), it is possible to eliminate the conventional drawbacks and reduce the remaining rice, and in turn wash and add water. This contributes to shortening the time.

ところで、炊飯米量と水加減量とは密接に関係し（例えば標準時１．３倍程度）に設定されている。ところが炊飯量の多少や、古米化程度、米飯の硬軟等の好み等によって微妙な増減補正が要求される。そこで段階的に標準設定に対して増加・減少に調整できる設定水量補正手段としての増減補正ダイヤル３１を設けて任意に補正設定できる構成としている。前記水加減処理の際、前段水加減処理工程では標準設定を仮定した水加減処理を行い、後段水加減処理工程では増加側補正によって必要な増分給水を行う。このとき、増分給水は投下バルブ２１を開けた状態で下給水管９からの給水でまかなうものとすると、洗米タンク７の容量拡大を伴わず炊飯量が多くかつ軟らかいご飯に対応できる。 By the way, the amount of cooked rice and the amount of water added are closely related (for example, about 1.3 times the standard time). However, a slight increase / decrease correction is required depending on the amount of cooked rice, the degree of old rice, the preference for the hardness of the cooked rice, and the like. Therefore, an increase / decrease correction dial 31 is provided as a set water amount correction means that can be adjusted to increase / decrease with respect to the standard setting step by step so that the correction can be arbitrarily set. At the time of the water addition / reduction process, a water addition / reduction process assuming a standard setting is performed in the front-stage water adjustment / reduction process, and a necessary incremental water supply is performed by an increase-side correction in the latter-stage water adjustment / reduction process. At this time, if the incremental water supply is covered by the water supply from the lower water supply pipe 9 with the drop valve 21 opened, the rice washing tank 7 can be used for a large amount of rice and soft rice without increasing the capacity.

図１２は前記洗米タンク７の改良構造を示すものである。洗米タンク７は機体フレーム１の貯米庫から米繰り出し部を開口した固定用プレート部１Ａに重合してボルト３２止めされる構成であるが、洗米タンク７のフランジ部７ａと該固定用プレート１Ａとの間に例えばシリコン製のパッキン３２を介在している。このパッキン３２は、フランジ部７ａに沿い一体形状または分割型いずれかの円盤状に形成される。その断面において、洗米タンク７の円盤状に形成されたフランジ部７ａの外縁部７ｂからフランジ部７aの内縁側屈曲部７ｃとの間に渡って設けられ、上記外縁部７ｂを包囲すべく該外縁部７ｂの嵌合溝３２ａを形成し、内周側には内周側係止部としての断面三角形部分３２ｂを形成している（図１２（イ））。この三角形部分３２ｂは、フランジ部７ａに装着すると、斜め内側上方に向く凸条３２ｃ及び上記内縁側屈曲部７ｃに沿う下向き凸条３２ｄが現れるよう形成する。 FIG. 12 shows an improved structure of the rice washing tank 7. The rice washing tank 7 is configured to be superposed on the fixing plate portion 1A having the rice feed-out portion opened from the rice storage of the machine body frame 1 and fixed with the bolt 32. The flange portion 7a of the rice washing tank 7 and the fixing plate 1A For example, a silicon packing 32 is interposed therebetween. The packing 32 is formed in a disk shape of either an integral shape or a split type along the flange portion 7a. In its cross section, it is provided between the outer edge portion 7b of the flange portion 7a formed in a disc shape of the rice washing tank 7 and the inner edge side bent portion 7c of the flange portion 7a, and the outer edge portion surrounds the outer edge portion 7b. A fitting groove 32a of the portion 7b is formed, and a cross-sectional triangular portion 32b as an inner peripheral side locking portion is formed on the inner peripheral side (FIG. 12 (A)). When the triangular portion 32b is attached to the flange portion 7a, the convex portion 32c facing obliquely inward and upward and the downward convex portion 32d along the inner edge side bent portion 7c appear.

すなわち、パッキン３２自由長において（図１２（イ））、パッキン３２の上記嵌合溝３２ａの底部からパッキン３２の接合面３２ｅに対して略直角に形成され断面三角形状の内周側係止部（三角形部分）３２ｂの垂直面３２ｆとの距離Ｌｐが洗米タンク７のフランジ部７ａの外縁部７ｂから該タンク７の内周までの距離Ｌｔに対して小（Ｌｐ＜Ｌｔ）に形成され、フランジ部７ａへ該パッキン３２を装着するときは元々面一に形成された接合面３２ｅおよび上記係止部３２ｂに上記のように上方向く凸条３２ｃと下向く凸条３２ｄが現れるよう形成している（同（ロ））。 That is, in the free length of the packing 32 (FIG. 12 (a)), the inner peripheral side locking portion formed in a substantially right angle from the bottom of the fitting groove 32a of the packing 32 to the joining surface 32e of the packing 32. (Triangular portion) The distance Lp between the vertical surface 32f of 32b and the distance Lt from the outer edge portion 7b of the flange portion 7a of the rice washing tank 7 to the inner periphery of the tank 7 is formed small (Lp <Lt). When the packing 32 is attached to the portion 7a, it is formed so that the upwardly protruding ridges 32c and the downwardly protruding ridges 32d appear on the joint surface 32e and the engaging portion 32b that are originally formed flush with each other. (Same (b)).

このように構成すると、固定用プレート部３１に洗米タンク７のフランジ部７ａを接合してボルト３３止めすると、図（ハ）のように固定プレート部１Ａに上向き凸条３２ｃの尖端が密着し、洗米タンク７上部内周には下向き凸条３２ｄの尖端が密着して水密を向上している。 If comprised in this way, if the flange part 7a of the rice-washing tank 7 will be joined to the fixing plate part 31, and the bolt 33 will be fixed, as shown in FIG. The tip of the downward ridge 32d is in close contact with the inner periphery of the upper part of the rice washing tank 7 to improve water tightness.

図１３は貯米庫２の周壁部２ａに付設して機構部周辺への熱気を流動排出させるファンユニット３５の取り付け構造の改良に関する。貯米庫２の左右側壁部に選択的に装着可能に構成するもので、該貯米庫２の左右側壁に装着用孔２ｂ，２ｂを形成し、この装着用孔２ｂに対してファンユニット３５または蓋３６を選択的に装着する。このように構成すると、本体フレーム１の近傍にフライヤー等の熱源が存在する場合にはこれとは反対側にファンユニット３６を装着して機構部への熱気や油分の進入を防止する。なお、ファンユニット３５はボルトにて着脱自在に設けられ、蓋３６はパンチングメタルなどを着脱自在に設けられている。 FIG. 13 relates to an improvement in the mounting structure of the fan unit 35 that is attached to the peripheral wall portion 2a of the rice storage box 2 and flows and discharges hot air around the mechanism portion. It is configured so as to be selectively attachable to the left and right side wall portions of the rice storage box 2, and mounting holes 2b, 2b are formed in the left and right side walls of the rice storage box 2, and a fan unit 35 is provided to the mounting hole 2b. Alternatively, the lid 36 is selectively attached. With this configuration, when a heat source such as a fryer exists in the vicinity of the main body frame 1, the fan unit 36 is mounted on the opposite side to prevent entry of hot air and oil into the mechanism. The fan unit 35 is detachably provided with a bolt, and the lid 36 is detachably provided with a punching metal or the like.

図１４は前記排水ボックス２９に接続する排水ホース４０の装着構成に関するもので、排水ボックス２９の排出口と建屋に設ける排水口４１との間を排水ホース４０で連結する場合において、機体フレーム１の炊飯釜４部を囲う脚部１Ｂ，１Ｂに保持孔４２，４２を形成し、該保持孔４２に排水ホース４０途中部を支持することで、各別の支持構成を不要とし簡素な構成で、設置床部をすっきりさせる。なおこの際保持孔４２は排水ボックス２９に直接設けられた排水エルボ４３の高さと床面４４との略中央の高さＬに設定されている。排水エルボ４３は水平軸芯回りに回動可能に設けられ左右いずれの方向に向けることができ、設置都合の良い方に取り付けることができる。 FIG. 14 relates to a mounting configuration of the drainage hose 40 connected to the drainage box 29. When the drainage hose 40 connects the drainage port of the drainage box 29 and the drainage port 41 provided in the building, FIG. By forming the holding holes 42, 42 in the legs 1B, 1B surrounding the rice cooker 4 parts, and supporting the drain hose 40 midway in the holding hole 42, each separate supporting configuration is unnecessary and has a simple configuration. Clean the installation floor. At this time, the holding hole 42 is set to a height L at a substantially center between the height of the drainage elbow 43 provided directly in the drainage box 29 and the floor surface 44. The drainage elbow 43 is provided so as to be rotatable around the horizontal axis, and can be directed to either the left or right direction, and can be attached to the one that is convenient for installation.

７洗米タンク
９下給水管
１１洗浄水排水管
１２水加減用排水管
１３満水検出センサ
１６上給水管
２２流量センサ
２２Ｄ流量センサ
２６洗浄水排水バルブ
３０無洗米設定スイッチ（無洗米選択手段）
３１増減補正ダイヤル（設定水量補正手段）
Ｃ制御部
Ｃ１第一水加減制御手段
Ｃ２第二水加減制御手段
Ｃ３必要水量算出手段
Ｃ４無洗米識別手段
Ｃ５無洗米水量補正手段
Ｘ１前段水加減工程
Ｘ２後段水加減工程 7 Washing tank 9 Lower water supply pipe 11 Washing water drainage pipe 12 Water drainage pipe 13 Water filling detection sensor 16 Upper water supply pipe 22 Flow rate sensor 22D Flow rate sensor 26 Washing water drainage valve 30 No wash rice setting switch (no wash rice selection means)
31 Increase / decrease correction dial (set water amount correction means)
C control unit C1 first water adjustment control means C2 second water adjustment control means C3 required water amount calculation means C4 unwashed rice identification means C5 unwashed rice water amount correction means X1 first stage water adjustment process X2 latter stage water adjustment process

Claims

投入した米を洗浄する洗浄工程と、炊飯用の水加減工程を洗米タンク（７）で行なう洗米装置において、洗米タンク（７）内に供給する米量（Ｒｎ）から炊飯に必要な水量（Ｑｎ）を算出する必要水量算出手段（Ｃ３）を備え、前記水加減工程は、この必要水量算出手段（Ｃ３）によって算出された必要水量（Ｑｎ）よりも少なく設定した供給水量（Ｑ´）を洗米後の米が存在する洗米タンク（７）に供給する前段水加減工程（Ｘ１）と、この前段水加減工程（Ｘ１）の水と米とを投下排出後に必要水量（Ｑｎ）と前段水加減水量（Ｑ´）との差の水量を洗米タンク（７）部から供給する後段水加減工程（Ｘ２）からなり、該後段水加減工程（Ｘ２）による水を投下排出する構成とし、
洗米タンク（７）に水を供給する水供給管（９，１６）と、水供給管（９，１６）から供給する水量を検出する流量センサ（２２，２２Ｄ）と、洗浄工程時の洗浄水を排水するときに使用する洗浄水排水管（１１）と、洗米タンク（７）の満水域に設けられる満水検出センサ（１３）と、水加減排水管（１２）とを設け、水加減工程で洗米タンク（７）内の水量を調節するのに、流量センサ（２２）による流量検出しながら設定水量を給水する第一水加減制御手段（Ｃ１）と、満水検出センサ（１３）が水を検出してから設定水量になるまで排水量を調節制御する第二水加減制御手段（Ｃ２）とを設け、前記洗米タンク（７）の米量が所定量（γ）以上のときには、第二水加減制御手段（Ｃ２）による前段水加減工程（Ｘ１）と後段水加減工程（Ｘ２）によって必要水量（Ｑｎ）を供給する構成とした洗米装置。 In the rice washing apparatus that performs the washing step for washing the introduced rice and the water addition / reduction step for rice cooking in the rice washing tank (7), the amount of water (Qn) required for rice cooking from the amount of rice (Rn) supplied into the rice washing tank (7) ) For calculating the required water amount (C3), and the water adding and subtracting step is performed by washing the supplied water amount (Q ′) smaller than the required water amount (Qn) calculated by the required water amount calculating unit (C3). The pre-stage water adjustment process (X1) to be supplied to the rice washing tank (7) where the subsequent rice is present, and the required water quantity (Qn) and the pre-stage water adjustment quantity after dropping and discharging the water and rice of this pre-stage water adjustment process (X1) (Q ') comprises a post-stage water adjustment process (X2) for supplying the amount of water that is different from the washing rice tank (7), and drops and discharges water from the post-stage water adjustment process (X2) .
Water supply pipes (9, 16) for supplying water to the rice washing tank (7), flow rate sensors (22, 22D) for detecting the amount of water supplied from the water supply pipes (9, 16), and washing water during the washing process Water drainage pipe (11) used when draining water, a full water detection sensor (13) provided in the full water area of the rice washing tank (7), and a water drainage pipe (12) are provided. To adjust the amount of water in the rice washing tank (7), the first water adjustment control means (C1) for supplying the set amount of water while detecting the flow rate by the flow rate sensor (22), and the full water detection sensor (13) detect the water. And a second water moderation control means (C2) for adjusting and controlling the amount of drainage until the set amount of water is reached. When the amount of rice in the rice washing tank (7) is greater than or equal to a predetermined amount (γ), the second water moderation control Pre-stage water adjustment process (X1) and post-stage water adjustment work by means (C2) (X2) rice washing device configured with supplying necessary amount of water (Qn) by.

洗米対象の米が無洗米であるか通常白米であるかを選択する選択手段（３０）またはこれらのいずれであるかを識別する識別手段（Ｃ４）を備え、無洗米を選択しまたは識別したときは、必要水量算出手段（Ｃ３）に基づく算出水量（Ｑｎ）を予め設定した分多い無洗米水量（Ｑｍ）に補正する無洗米水量補正手段（Ｃ５）を設け、無洗米を選択しまたは識別したときは、前段水加減工程（Ｘ１）と後段水加減工程（Ｘ２）によって必要水量（Ｑｍ）を給水する構成とした請求項１記載の洗米装置。 When selection means (C4) for selecting whether the rice to be washed is non-washed rice or normal white rice, or identification means (C4) for identifying which of these is selected, and when washing-free rice is selected or identified Is provided with wash-free rice water amount correction means (C5) for correcting the calculated water amount (Qn) based on the required water amount calculation means (C3) to a preset wash-free rice water amount (Qm), and selecting or identifying the wash-free rice The rice washing apparatus according to claim 1 , wherein the required amount of water (Qm) is supplied by the front stage water adjustment process (X1) and the rear stage water adjustment process (X2) .