JP4162843B2

JP4162843B2 - Automatic rice cooker

Info

Publication number: JP4162843B2
Application number: JP2000307518A
Authority: JP
Inventors: 政弘山崎
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-06
Filing date: 2000-10-06
Publication date: 2008-10-08
Anticipated expiration: 2020-10-06
Also published as: JP2002112885A

Description

【０００１】
【発明の属する技術分野】
本発明は主として無洗米を自動的に炊飯する自動炊飯器に関する。
【０００２】
【従来の技術】
無洗米の炊飯を対象とした先行技術は特開平０８−２７５８６５号公報に「無洗米炊飯装置」として開示されている。該装置は多量の無洗米を貯米部に貯留しておき、所要の炊飯量を洗浄後、該炊飯量と炊飯水量とを炊飯部に自動排出して炊飯するもので、炊飯時間の短縮を図って炊飯作業能率を高めるための技術である。
したがって、各家庭で使用する炊飯器を対象とする炊飯技術ではなく、特に食事時間に対応して美味しく炊き上げるための、無洗米を予め潤すという要素が炊飯に関与されていない。
【０００３】
【発明が解決しようとする課題】
本発明は従来技術に鑑み、家庭で使用する自動炊飯器を対象として無洗米を水に潤す時間を考慮して美味しく炊き上げる自動炊飯器を提供するものである。
【０００４】
【課題を解決するための手段】
本発明の請求項１に記載した自動炊飯器は、炊飯器本体に水供給部を接続し、米の炊き上げ状態の種類や米の処理状態に対応して炊き上がり時刻タイマー設定して自動的に炊飯する自動炊飯器において、炊飯量に対応する水の供給開始を外部から指令する水供給タイマー設定部が配設されて成る自動炊飯器。
また、請求項２に記載した自動炊飯器は、請求項１に記載した自動炊飯器において、前記水供給部が、炊飯器本体の蓋の上面に接合され、注水口にキャップが被蓋される水タンクと、該水タンクのタンク本体の水収容室と炊飯釜とを連通する連通口と、該連通口の円錐弁座に着脱自在に内嵌する円錐弁と、該円錐弁にその下端を一体にし、上部にネジ軸部が接合され、水収容室の中央に縦設した案内中空軸の上部内周面に螺設した雌ネジ部に螺合して回転昇降自在に案内中空軸の案内孔に案内されるスピンドルと、該スピンドルの上部に接合される接合軸と、該接合軸に駆動軸が接合され、タンク本体の上部に取着されるバルブ開閉モータとから成る。
さらに、請求項３に記載した自動炊飯器は、炊飯量に適量の炊飯水量を計量供給する水供給部と、炊飯器本体における自動蓋開閉手段とを有し、米の炊き上げ状態の種類や米の処理状態に対応して炊き上がり時刻をタイマー設定して自動的に炊飯する自動炊飯器において、
炊飯量に対応する水の供給開始を外部から指令する水供給タイマー設定部が配設され、自動蓋開閉手段が、蓋のロック解除機構と、蓋開閉機構とから成り、ロック解除機構が蓋の取手の上面に取着される支持体と、該支持体に固着され、カム盤を回動駆動する小形モータと、該カム盤に他端を当接して支持体に上下揺動自在に軸支され、一端で蓋のロックレバーを押圧する押圧レバーと、該押圧レバーの背面に下端を当接して支持体に昇降自在に案内される押圧ピンとから成り、蓋開閉機構が、蓋の回動支持軸に外嵌した捩りコイルバネの一端を炊飯器本体に係止し、他端を蓋の閉方向に弾発力を付勢する状態で蓋に係止してなる閉止構造と、炊飯器本体の外周面に周設した駆動ボックスに取着された小形モータの回転力が一対のベベルギヤを介してピニオンに伝達され、ピニオンの回転力が炊飯器本体と周壁間に軸支される昇降棒のラックに伝達され、昇降棒の上昇によって蓋を開く開口構造とから成る。
【０００５】
【発明の実施の形態】
計量供給する水供給部は、炊飯水量に貯水した水タンク内の水を炊飯釜へ供給するものや、炊飯水量に貯水した水タンク内の水をポンプで供給するものや、所要に貯水した水タンク内の水をポンプで量水器を介して供給するものや、蛇口から取水する水道水の送水圧を利用して開閉バルブ（電磁弁など）と量水器を連動させて水を供給するものなどが選択される。自動蓋開閉手段とは、蓋のロック解除機構とともに、蓋の回動支持軸で該蓋を開閉自在に駆動するものから、回動支持軸で捩りコイルバネや挟みバネなどの弾発力によって蓋を閉方向に回動させ、他方で前記弾発力に抗して蓋を開方向に押し上げるなど、閉止構造と開口構造とから成るものも選択される。この自動蓋開閉手段を有する場合の自動炊飯器においては、蓋の開口を確認後、水供給部からの給水がなされ、所要炊飯水量の計量供給の完了を待って蓋が閉止される。
【０００６】
【実施例】
本発明を実施例により説明すると、図１（ａ）に示した自動炊飯器ａは、炊飯器本体１には炊飯タイマー設定部２と水の供給開始を指令する水供給タイマー設定部３を配設し、蓋４には上面中央部に開閉弁を内蔵した送水管接続部５を配設し、送水管接続部５には量水器６と電磁弁７と送水管８とから成る水供給部９の送水管８の一端を接続し、他端を水道管（図外）の蛇口１０に接続して成る。
このようにして成る自動炊飯器ａは、所要の無洗米が炊飯釜（図外）に入れられ、炊飯器本体１の炊飯タイマー設定部２に設定時から炊き上がり時刻までの炊き上がり時間を設定し、かつ、この炊き上がり時間からセットバックして炊き上げ時間に無洗米の湿潤時間を加えた時間を差し引き、この残り時間を設定時から水供給開始時刻までの時間として水供給タイマー設定部３に設定すると、タイムアップの信号は電磁弁７の開口を指令し、また、量水器６では無洗米の炊飯量に必要な炊飯水量が指示部（図外）で指示され、そのタイムアップ信号は電磁弁７の開口を指令するものである。
これを具体的に例示すると、自動炊飯器ａの運転を指令した時刻が午後９時で炊き上がり時刻が午前６時であるとすれば、炊飯タイマー設定部２には午後９時から午前６時までの９：００（９時間）が設定される。無洗米の湿潤時間（水に潤す時間）を２時間として炊き上げ時間を３０分とすれば、炊き上がり時刻より２時間３０分前に電磁弁７を開口すればよいから、水供給タイマー設定部３には前記９時間から２時間３０分を差し引いた６：３０が入力設定される。
上記の例において従来の自動炊飯器で炊き上げるときは、午後９時の時点で無洗米と水が炊飯釜に収納されることになるから、無洗米が６時間３０分も水に湿潤された状態となり、膨潤過多の炊き上がりとなり美味しくなくなる。
なお、前記タイマーの設定において、午前６時より２時間３０分前の３時３０分に水供給タイマー設定部３に入力するように設定し、３０分前の５時３０分に炊飯タイマー設定部２に入力するよう設定することもできる。
【０００７】
次に、図１（ｂ）に示した自動炊飯器ａについて説明すると、炊飯器本体１には、炊飯タイマー設定部２と水の供給開始を指令する水供給タイマー設定部３を配設し、蓋４には上面中央部に開閉弁を内蔵した送水管接続部５を配設し、送水管接続部５には量水器６とポンプ１１と送水管８とから成る水供給部９の送水管８の一端を接続し、他端を水を満たした水タンク１２に連通して成る。
このようにして成る自動炊飯器ａも所要の無洗米が炊飯釜（図外）に入れられ、炊飯器本体１の炊飯タイマー設定部２には設定時から炊き上がり時刻までの炊き上がり時間が設定され、水供給タイマー設定部３には設定時から水供給開始時刻までの時間が設定され、運転開始スイッチの入力によって刻々と時が刻まれ、水供給開始時間のタイムアップによってポンプ１１が始動し、水タンク１２から汲み上げられた水が送水管８によって量水器６を経由し送水管接続部５の開閉弁（図外）を押圧して炊飯釜に送水される。
量水器６の指示部では炊飯量に必要な炊飯水量が指示され、そのタイムアップ信号はポンプ１１の運転を停止させる。
その後２時間程度（予め考慮された無洗米の水への湿潤時間）を経て炊き上げの指令が出され、３０分程度（炊飯量によって変動する）で炊飯タイマー設定部２の炊き上がり時間がタイムアップして炊き上がりとなる。
【０００８】
図２に示した自動炊飯器ｂについて説明すると、炊飯器本体１には自動炊飯器ａと同様に炊飯タイマー設定部２と水の供給開始を指令する水供給タイマー設定部３を配設し、蓋４の上面には水供給部９としての水タンク１３が接合される。水タンク１３は図４に示すように、炊飯釜とタンク本体１４の水収容室１５とを連通する連通口１６が、タンク本体１４の上部のバルブ開閉モータ１７の駆動軸１８によって回転昇降するスピンドル１９に一体の円錐弁２０により開閉自在となっている。
すなわち、駆動軸１８に大径軸部２１を外嵌接合する接合軸２２は、その小径軸部２３にスピンドル１９の上部のネジ軸部２４が回転昇降自在に外嵌接合され、ネジ軸部２４は水収容室１５の中央に縦設した案内中空軸２５の上部内周面に螺設した雌ネジ部２６に螺合し、スピンドル１９は案内中空軸２５の案内孔２７に案内され、その下端に一体の円錐弁２０を連通口１６を開口した円錐弁座２８に着脱自在に内嵌し、透明なタンク本体１４は周面には水量目盛２９を表示し上面にはキャップ３０を開閉自在に内嵌した注水口３１を配設して成る。
このようにして成る自動炊飯器ｂは、炊飯釜に所要の無洗米が入れられ、タンク本体１４の水収容室１５にも注水口３１から水量目盛２９によって無洗米の炊飯量に見合う水が入れられ、炊飯器本体１の炊飯タイマー設定部２には設定時から炊き上がり時刻までの時間が設定され、水供給タイマー設定部３には設定時から水供給開始時刻までの時間が設定され、運転開始スイッチの入力によって刻々と時が刻まれ、水供給開始時間のタイムアップによってバルブ開閉モータ１７が始動し、スピンドル１９の回転上昇によって円錐弁座２８から円錐弁２０が離脱し、連通口１６が開口して水収容室１５の水が炊飯釜に落下し、落下時間のタイマー設定により、バルブ開閉モータ１７が逆転し、連通口１６が円錐弁２０で閉止される。
水供給によって無洗米は所定時間湿潤され、炊き上がり時刻の指令から逆算された時刻に炊き上げ指令が出され加熱炊飯され、設定時刻に美味しく炊き上げられる。
【０００９】
図３に示した自動炊飯器ｃについて説明すると、炊飯器本体１に炊飯タイマー設定部２と水の供給開始を指令する水供給タイマー設定部３を配設し、炊飯量に見合う炊飯水量を計量供給する水供給部９と、炊飯器本体１の蓋４を自動的に開閉する自動蓋開閉手段３２が配設されて成る。
この実施例の水供給部９は、炊飯量に見合う水を入れることのできる水タンク１２とポンプ１１と送水管８とから成り、送水管８の一端は蓋４を開けた状態で炊飯釜に水を落下できる姿勢で位置取りされ、他端は水タンク１２に連通されて成る。自動蓋開閉手段３２は図５に示す蓋４のロック解除機構３３と、図６に示す蓋開閉機構３４とから成る。
ロック解除機構３３について説明すると図５に示すように、蓋４のロックレバー３５をその一端で押圧する押圧レバー３６は、取手３７の上面に取着した支持体３８の二股受け部３９に上下揺動自在に軸支され、その他端を支持体３８に固着した小形モータ４０で回転駆動されるカム盤４１に当接し、押圧レバー３６の背面には支持体３８に昇降自在に案内される押圧ピン４２の下端を当接して成る。
上記ロック解除機構３３によれば、小形モータ４０の回転によって回転軸に一体のカム盤４１が回転し、押圧レバー３６は仮想線で示す位置に変動し、その一端（下端）がロックレバー３５を押圧してロック解除の状態となる。なお、小形モータ４０の停止状態でも押圧ピン４２を指で押し下げれば、押圧レバー３６は仮想線で示す位置に押圧されてロックレバー３５を押し下げるから同じく解除できる。
蓋開閉機構３４について説明すると図６に示すように、蓋４を閉方向に回動させる閉止構造４３と、蓋４を開方向に押し上げる開口構造４４とから成り、閉止構造４３は蓋４の回動支持軸４５に外嵌した捩りコイルバネ４６の一端を炊飯器本体１に係止し、他端を蓋４の閉方向に弾発力を付勢する状態で蓋４に係止している。開口構造４４は炊飯器本体１の外周面に周設した駆動ボックス４７において図７に示すように、小形モータ４８の回転力を一対のベベルギヤ４９を介してピニオン５０に伝達し、ピニオン５０の回転力を炊飯器本体１の周壁間に軸支した昇降軸５１のラック５２に伝達し、昇降棒５１の昇降によって蓋４を開閉する。
すなわち、小形モータ４８の正回転で昇降棒５１を押し上げると、昇降棒５１の上端は閉止構造４３の捩りコイルバネ４６の弾発力に抗して蓋４を所要開口状態まで開口し、小形モータ４８の逆回転で昇降棒５１を降下させると蓋４は捩りコイルバネ４６の弾発力によって閉じられる。
このようにして成る自動炊飯器ｃも前記と同様に、所要の無洗米が炊飯釜に入れられ、炊飯器本体１の炊飯タイマー設定部２には、その表示部５３に時単位スイッチ５４と分単位スイッチ５５を押すことによって設定時から炊き上がり時刻までの時間が設定され、水供給タイマー設定部３にはその表示部５６に時単位スイッチ５７と分単位スイッチ５８を押すことによって設定時から水供給開始時刻までの時間が設定される。
運転開始スイッチの入力によって時が刻まれ、水供給開始時間がタイムアップすると、蓋４のロック解除機構３３の小形モータ４０が所要数回転して押圧レバー３６を押し下げ、ロックレバー３５が押し下げられてロック解除となる。
次いで、タイマー指令（他の手段でもよい）によって開口構造４４における小形モータ４８を回転させて昇降棒５１を押し上げ、蓋４を所要開口状態に開口する。
次いで、蓋４の開口状態を待って水供給部９のポンプ１１を駆動し、送水管８から炊飯量に見合う水が炊飯釜に注がれ、注水完了指令によって開口構造４４の小形モータ４８が逆回転し昇降棒５１の降下に伴って蓋４はその自重と閉止構造４３の捩りコイルバネ４６の弾発力によって閉じられ、同時に蓋４はロックレバー３５によって炊飯器本体１にロックされる。
このように水が注がれた無洗米は考慮された理想時間だけ湿潤され、その後、炊き上がり時刻から逆算された時間分加熱炊飯されて炊き上げられる。
なお、本発明の自動炊飯器は無洗米に限らず、水で研いだ普通米の炊飯に適用できるが、無洗米と通常米の各炊飯量に適応する各炊飯水量が水タンク１３や量水器６に指示される。
【００１０】
【発明の効果】
本発明によれば、加熱炊飯に入る前に米に必要とされる湿潤時間を選択して米を水に湿潤できるから、炊き上がりが膨潤過多にならず、ふっくらと美味しいご飯を炊き上げできる効果がある。
また、請求項２に記載した自動炊飯器は、水供給部が簡易構造で蓋に取着され、しかも、水供給後は蓋と一体に開閉できるから取り扱いも簡単であり、家庭用として最適なものである。
さらに、請求項３に記載した自動炊飯器は、水供給部が別体とされ、水のみが供給されるものであるから、炊飯時の蒸気やご飯のおねばなどによる給水管内の汚れもなく、極めて衛生的に炊飯できるものである。
【図面の簡単な説明】
【図１】本発明の自動炊飯器ａの構成説明図。
【図２】本発明の自動炊飯器ｂの構成説明図。
【図３】本発明の自動炊飯器ｃの構成説明図。
【図４】自動炊飯器ｂにおける水タンクの縦断面図。
【図５】自動炊飯器ｃの蓋のロック解除機構を示す正面図。
【図６】自動炊飯器ｃの蓋開閉機構を示す背面図。
【図７】自動炊飯器ｃの蓋開閉機構の要部横断面図。
【符号の説明】
１炊飯器本体
２炊飯タイマー設定部
３水供給タイマー設定部
４蓋
５送水管接続部
６量水器
７電磁弁
８送水管
９水供給部
１０蛇口
１１ポンプ
１２水タンク
１３水タンク
１４タンク本体
１５水収容室
１６連通口
１７バルブ開閉モータ
１８駆動軸
１９スピンドル
２０円錐弁
２１大径軸部
２２接合軸
２３小径軸部
２４ネジ軸部
２５案内中空軸
２６雌ネジ部
２７案内孔
２８円錐弁座
２９水量目盛
３０キャップ
３１注水口
３２自動蓋開閉手段
３３ロック解除機構
３４蓋開閉機構
３５ロックレバー
３６押圧レバー
３７取手
３８支持体
３９二股受部
４０小形モータ
４１カム盤
４２押圧ピン
４３閉止構造
４４開口構造
４５回動支持軸
４６振りコイルバネ
４７駆動ボックス
４８小形モータ
４９ベベルギヤ
５０ピニオン
５１昇降棒
５２ラック
５３表示部
５４時単位スイッチ
５５分単位スイッチ
５６表示部
５７時単位スイッチ
５８分単位スイッチ
ａ乃至ｃ自動炊飯器[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to an automatic rice cooker that automatically cooks rice without washing.
[0002]
[Prior art]
Prior art for washing rice without washing has been disclosed as “washless rice cooking apparatus” in Japanese Patent Application Laid-Open No. 08-275865. This device stores a large amount of unwashed rice in the rice storage part, and after washing the required amount of rice cooking, the rice cooking amount and the amount of rice water are automatically discharged to the rice cooking part to cook rice, thereby shortening the rice cooking time. This is a technique for improving rice cooking efficiency.
Therefore, it is not the rice cooking technique for the rice cooker used in each home, and the element of pre-moisturizing non-washed rice for cooking deliciously corresponding to meal time is not involved in rice cooking.
[0003]
[Problems to be solved by the invention]
This invention provides the automatic rice cooker which cooks deliciously considering the time which moisturizes non-washed rice in water for the automatic rice cooker used at home in view of a prior art.
[0004]
[Means for Solving the Problems]
The automatic rice cooker described in claim 1 of the present invention has a water supply unit connected to the rice cooker body, and automatically sets the cook time timer corresponding to the type of rice cooked state and the state of rice treatment. In an automatic rice cooker that cooks rice, an automatic rice cooker in which a water supply timer setting unit that commands the start of water supply corresponding to the amount of rice cooked from the outside is disposed.
The automatic rice cooker described in claim 2 is the automatic rice cooker described in claim 1, wherein the water supply unit is joined to the upper surface of the lid of the rice cooker body, and the cap is covered with the water inlet. A water tank, a communication port communicating with the water storage chamber of the tank body of the water tank and the rice cooker, a conical valve detachably fitted in a conical valve seat of the communication port, and a lower end of the conical valve at its lower end The screw shaft part is joined to the upper part, and the guide hollow shaft is guided to rotate up and down by screwing into the female screw part screwed on the upper inner peripheral surface of the guide hollow shaft vertically installed in the center of the water storage chamber. A spindle guided by the hole, a joining shaft joined to the upper part of the spindle, and a valve opening / closing motor attached to the upper part of the tank body with a drive shaft joined to the joining shaft.
Furthermore, the automatic rice cooker described in claim 3 has a water supply unit that measures and supplies an appropriate amount of rice cooking water to the amount of rice cooked, and an automatic lid opening / closing means in the rice cooker body. In an automatic rice cooker that automatically cooks rice by setting the time of cooking according to the processing state of rice,
A water supply timer setting unit is provided to command the start of water supply corresponding to the amount of rice cooked from the outside, and the automatic lid opening / closing means includes a lid unlocking mechanism and a lid opening / closing mechanism. A support attached to the upper surface of the handle, a small motor that is fixed to the support and drives the cam panel to rotate, and a pivotal support that can swing up and down on the support by contacting the other end of the cam panel. A pressure lever that presses the lock lever of the lid at one end, and a pressure pin that abuts the lower end against the back surface of the pressure lever and is guided up and down to the support, and the lid opening / closing mechanism supports the rotation of the lid A closed structure in which one end of a torsion coil spring externally fitted to the shaft is locked to the rice cooker body, and the other end is locked to the lid in a state of energizing the elastic force in the closing direction of the lid, A pair of bevel gears with the rotational force of a small motor attached to a drive box provided on the outer peripheral surface Is transmitted to the pinion through the rotational force of the pinion is transmitted to the rack of the lifting rod is pivotally supported between the cooker body and the peripheral wall, consisting of an opening structure to open the lid by an increase of the lift rod.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The water supply unit for metering supplies the water in the water tank stored in the amount of cooked rice to the rice cooker, supplies the water in the water tank stored in the amount of cooked water with a pump, or the water stored as required Water is supplied by linking an open / close valve (such as a solenoid valve) and a water meter using water supply pressure from a tap or water supplied from a faucet via a water meter. Things are selected. The automatic lid opening / closing means, together with the lid unlocking mechanism, drives the lid so that it can be freely opened and closed by the pivot support shaft of the lid, and the lid is opened by the elastic force of a torsion coil spring or pinch spring by the pivot support shaft. A structure having a closing structure and an opening structure, such as rotating in the closing direction and pushing up the lid in the opening direction against the elastic force, is also selected. In the automatic rice cooker having the automatic lid opening / closing means, after confirming the opening of the lid, water is supplied from the water supply unit, and the lid is closed after completion of the metering supply of the required amount of rice cooking water.
[0006]
【Example】
The present invention will be described with reference to an embodiment. An automatic rice cooker a shown in FIG. 1A includes a rice cooker main body 1 and a rice cooking timer setting unit 2 and a water supply timer setting unit 3 for instructing the start of water supply. The lid 4 is provided with a water pipe connecting portion 5 having a built-in on-off valve at the center of the upper surface. The water pipe connecting portion 5 is provided with a water supply comprising a water meter 6, an electromagnetic valve 7 and a water pipe 8. One end of the water supply pipe 8 of the section 9 is connected, and the other end is connected to a faucet 10 of a water pipe (not shown).
The automatic rice cooker a thus configured has the required unwashed rice placed in a rice cooker (not shown), and sets the cooking time from the setting time to the cooking time in the rice cooking timer setting unit 2 of the rice cooker body 1 In addition, the water supply timer setting unit 3 sets back from the cooked time and subtracts the time obtained by adding the wet time of non-washed rice to the cooked time, and sets the remaining time as the time from the set time to the water supply start time. When set to, the time-up signal instructs the opening of the solenoid valve 7, and in the water meter 6, the amount of cooked rice necessary for the amount of cooked rice without washing is indicated by the indicator (not shown), and the time-up signal Is to command opening of the solenoid valve 7.
Specifically, if the time when the operation of the automatic rice cooker a is commanded is 9:00 pm and the cooked time is 6:00 am, the rice cooking timer setting unit 2 will be 9:00 pm to 6:00 am Until 9:00 (9 hours) is set. Water-free timer setting unit, if the wet time (water moistening time) of unwashed rice is 2 hours and the cooking time is 30 minutes, the electromagnetic valve 7 may be opened 2 hours 30 minutes before the cooking time 3 is set to 6:30, which is 9 hours minus 2 hours 30 minutes.
In the above example, when cooking with a conventional automatic rice cooker, unwashed rice and water will be stored in the rice cooker at 9 pm, so the unwashed rice was moistened with water for 6 hours 30 minutes. It becomes a state, becomes over-swelled and becomes delicious.
In addition, in the setting of the timer, it is set to input to the water supply timer setting unit 3 at 3:30, 2 hours and 30 minutes before 6:00 am, and the rice cooking timer setting unit at 5:30 before 30 minutes It can also be set to input to 2.
[0007]
Next, the automatic rice cooker a shown in FIG. 1B will be described. The rice cooker main body 1 is provided with a rice cooking timer setting unit 2 and a water supply timer setting unit 3 for instructing the start of water supply, The lid 4 is provided with a water pipe connecting part 5 having a built-in on-off valve at the center of the upper surface, and the water pipe connecting part 5 is supplied with a water supply part 9 comprising a water meter 6, a pump 11 and a water pipe 8. One end of the water pipe 8 is connected, and the other end communicates with a water tank 12 filled with water.
In the automatic rice cooker a thus configured, the required non-washed rice is put into the rice cooker (not shown), and the cooking time from the setting time to the cooking time is set in the rice cooking timer setting part 2 of the rice cooker body 1 In the water supply timer setting unit 3, the time from the setting time to the water supply start time is set, the time is ticked by the input of the operation start switch, and the pump 11 starts when the water supply start time is up. The water pumped up from the water tank 12 is fed to the rice cooker by pressing the open / close valve (not shown) of the water pipe connecting portion 5 through the water meter 6 by the water pipe 8.
In the indicator of the water meter 6, the amount of rice cooking water required for the amount of rice cooking is instructed, and the time-up signal stops the operation of the pump 11.
After that, after about 2 hours (wet time for washing the unwashed rice in water), the cooking instruction is issued, and the cooking time of the rice cooking timer setting unit 2 is about 30 minutes (varies depending on the amount of rice cooked) It ’s up and cooked.
[0008]
The automatic rice cooker b shown in FIG. 2 will be described. The rice cooker main body 1 is provided with a rice cooker timer setting unit 2 and a water supply timer setting unit 3 for instructing the start of water supply in the same manner as the automatic rice cooker a. A water tank 13 as a water supply unit 9 is joined to the upper surface of the lid 4. As shown in FIG. 4, the water tank 13 is a spindle in which a communication port 16 that connects the rice cooker and the water storage chamber 15 of the tank body 14 is rotated up and down by a drive shaft 18 of a valve opening / closing motor 17 at the upper part of the tank body 14. 19 is openable and closable by a conical valve 20 integrated with 19.
That is, the joint shaft 22 that externally joins the large-diameter shaft portion 21 to the drive shaft 18 is externally joined to the small-diameter shaft portion 23 so that the screw shaft portion 24 on the upper portion of the spindle 19 can be rotated and raised. Is screwed into a female screw portion 26 screwed on the upper inner peripheral surface of the guide hollow shaft 25 provided vertically in the center of the water storage chamber 15, and the spindle 19 is guided by the guide hole 27 of the guide hollow shaft 25, and its lower end. An integral conical valve 20 is detachably fitted into a conical valve seat 28 having an opening at the communication port 16, and the transparent tank body 14 displays a water volume scale 29 on the peripheral surface and a cap 30 on the upper surface. A water inlet 31 fitted therein is provided.
The automatic rice cooker b constructed in this manner is filled with the required unwashed rice in the rice cooker, and the water storage chamber 15 of the tank body 14 is filled with water corresponding to the amount of cooked rice without washing by the water volume scale 29 from the water inlet 31. In the rice cooker body 1, the rice cooking timer setting unit 2 is set to the time from the setting time to the cooking time, and the water supply timer setting unit 3 is set to the time from the setting time to the water supply start time. By the input of the start switch, the time is momentarily counted, the valve opening / closing motor 17 is started when the water supply start time is up, the conical valve 20 is detached from the conical valve seat 28 due to the rotation of the spindle 19, and the communication port 16 is opened. The water is opened and the water in the water storage chamber 15 falls into the rice cooker, the valve opening / closing motor 17 is reversed by the timer setting of the falling time, and the communication port 16 is closed by the conical valve 20.
Wash-free rice is moistened for a predetermined time by supplying water, and a cook command is issued at a time calculated backward from the cook time command, cooked with heat, and cooked deliciously at the set time.
[0009]
The automatic rice cooker c shown in FIG. 3 will be described. The rice cooker body 1 is provided with a rice cooking timer setting unit 2 and a water supply timer setting unit 3 for instructing the start of water supply, and the amount of rice cooking water corresponding to the amount of rice cooking is measured. The water supply part 9 to supply and the automatic lid | cover opening / closing means 32 which opens and closes the lid | cover 4 of the rice cooker main body 1 automatically are arrange | positioned.
The water supply unit 9 of this embodiment is composed of a water tank 12 capable of containing water corresponding to the amount of rice cooked, a pump 11 and a water pipe 8, and one end of the water pipe 8 is placed in the rice cooker with the lid 4 opened. The water tank 12 is positioned so that it can drop water, and the other end communicates with the water tank 12. The automatic lid opening / closing means 32 includes an unlock mechanism 33 for the lid 4 shown in FIG. 5 and a lid opening / closing mechanism 34 shown in FIG.
The unlocking mechanism 33 will be described. As shown in FIG. 5, the pressing lever 36 that presses the lock lever 35 of the lid 4 with one end thereof swings up and down on the bifurcated receiving portion 39 of the support 38 attached to the upper surface of the handle 37. A pressing pin that is pivotally supported and abuts against a cam disk 41 that is rotationally driven by a small motor 40 that is fixed at the other end to the support 38, and that is guided by the support 38 on the back of the pressing lever 36. The lower end of 42 is contacted.
According to the unlocking mechanism 33, the rotation of the small motor 40 causes the cam panel 41 integrated with the rotating shaft to rotate, the pressing lever 36 changes to the position indicated by the phantom line, and one end (lower end) of the locking lever 35 Press to enter the unlocked state. Even when the small motor 40 is stopped, if the pressing pin 42 is pressed down with a finger, the pressing lever 36 is pressed to the position indicated by the phantom line and the locking lever 35 is pressed down, so that the same can be released.
The lid opening / closing mechanism 34 will be described. As shown in FIG. 6, the lid opening / closing mechanism 34 includes a closing structure 43 that rotates the lid 4 in the closing direction and an opening structure 44 that pushes up the lid 4 in the opening direction. One end of a torsion coil spring 46 externally fitted to the dynamic support shaft 45 is locked to the rice cooker body 1, and the other end is locked to the lid 4 in a state in which a resilient force is urged in the closing direction of the lid 4. As shown in FIG. 7, the opening structure 44 transmits the rotational force of the small motor 48 to the pinion 50 via a pair of bevel gears 49 in a drive box 47 provided around the outer peripheral surface of the rice cooker body 1. The force is transmitted to the rack 52 of the lifting shaft 51 pivotally supported between the peripheral walls of the rice cooker body 1, and the lid 4 is opened and closed by the lifting and lowering of the lifting rod 51.
That is, when the lifting / lowering rod 51 is pushed up by the forward rotation of the small motor 48, the upper end of the lifting / lowering rod 51 opens the lid 4 to the required opening state against the elastic force of the torsion coil spring 46 of the closing structure 43. The lid 4 is closed by the elastic force of the torsion coil spring 46 when the elevating rod 51 is lowered by the reverse rotation.
Similarly to the above, the automatic rice cooker c formed in this way is also filled with the required non-washed rice in the rice cooker, and the rice cooking timer setting unit 2 of the rice cooker body 1 has the hour unit switch 54 and the minute display on its display unit 53. By pressing the unit switch 55, the time from the setting time to the cooking time is set. In the water supply timer setting unit 3, the time unit switch 57 and the minute unit switch 58 are pressed on the display unit 56 to set the water from the setting time. The time until the supply start time is set.
When the time is counted by the input of the operation start switch and the water supply start time is up, the small motor 40 of the unlocking mechanism 33 of the lid 4 rotates a required number of times to depress the pressing lever 36 and the locking lever 35 is depressed. It is unlocked.
Next, the small motor 48 in the opening structure 44 is rotated by a timer command (which may be other means) to push up the elevating rod 51 and open the lid 4 to the required opening state.
Next, the pump 11 of the water supply unit 9 is driven after waiting for the open state of the lid 4, and water corresponding to the amount of rice cooked is poured from the water supply pipe 8 into the rice cooker. The lid 4 rotates in the reverse direction and the lid 4 is closed by its own weight and the elastic force of the torsion coil spring 46 of the closing structure 43, and at the same time, the lid 4 is locked to the rice cooker body 1 by the lock lever 35.
The non-washed rice in which water is poured in this way is moistened for the considered ideal time, and then cooked by cooking for the time calculated backward from the cooked time.
In addition, although the automatic rice cooker of this invention is applicable not only to non-washed rice but the cooking of normal rice sharpened with water, each rice cooking water amount which adapts to each rice cooking amount of non-washed rice and normal rice is water tank 13 or quantity water. The device 6 is instructed.
[0010]
【The invention's effect】
According to the present invention, since the rice can be moistened with water by selecting the wet time required for the rice before entering the cooked rice, the effect of being able to cook the plump and delicious rice without overcooking the cooked rice There is.
In addition, the automatic rice cooker according to claim 2 has a water supply portion attached to the lid with a simple structure, and can be opened and closed integrally with the lid after water supply, so that it is easy to handle and is optimal for household use. Is.
Furthermore, since the automatic rice cooker described in claim 3 has a separate water supply unit and is supplied with only water, there is no dirt in the water supply pipe due to steam during cooking or a rice bowl. It can cook rice in a very hygienic manner.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a configuration of an automatic rice cooker a according to the present invention.
FIG. 2 is a diagram illustrating the configuration of an automatic rice cooker b according to the present invention.
FIG. 3 is a diagram illustrating the configuration of an automatic rice cooker c according to the present invention.
FIG. 4 is a longitudinal sectional view of a water tank in the automatic rice cooker b.
FIG. 5 is a front view showing a lid unlocking mechanism of the automatic rice cooker c.
FIG. 6 is a rear view showing a lid opening / closing mechanism of the automatic rice cooker c.
FIG. 7 is a cross-sectional view of the main part of the lid opening / closing mechanism of the automatic rice cooker c.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Rice cooking timer setting part 3 Water supply timer setting part 4 Cover 5 Water supply pipe connection part 6 Metered water device 7 Electromagnetic valve 8 Water supply pipe 9 Water supply part 10 Faucet 11 Pump 12 Water tank 13 Water tank 14 Tank main body 15 Water storage chamber 16 Communication port 17 Valve opening / closing motor 18 Drive shaft 19 Spindle 20 Conical valve 21 Large diameter shaft portion 22 Joining shaft 23 Small diameter shaft portion 24 Screw shaft portion 25 Guide hollow shaft 26 Female thread portion 27 Guide hole 28 Conical valve seat 29 Water scale 30 Cap 31 Water injection port 32 Automatic lid opening / closing means 33 Lock release mechanism 34 Lid opening / closing mechanism 35 Lock lever 36 Press lever 37 Handle 38 Support body 39 Fork receiving portion 40 Small motor 41 Cam panel 42 Press pin 43 Closing structure 44 Opening structure 45 Rotating support shaft 46 Swing coil spring 47 Drive box 48 Small motor 49 Bevel gear 50 Pinion 51 Lifting 52 rack 53 display unit switch 58 pm 54 pm unit switch 55 minute switch 56 the display unit 57 unit switch a to c automatic cooker

Claims

In the automatic rice cooker that connects the water supply unit to the rice cooker body and automatically sets the time of cooking according to the type of rice cooked state and rice processing state, and automatically cooks rice, it corresponds to the amount of rice cooked An automatic rice cooker provided with a water supply timer setting unit for commanding the start of water supply from the outside .

The water supply part is joined to the upper surface of the lid of the rice cooker body, and a water tank whose cap is covered with the water inlet, a communication port for communicating the water storage chamber of the tank body of the water tank and the rice cooker, A conical valve that is detachably fitted in the conical valve seat of the communication port, and a guide hollow shaft in which the lower end of the conical valve is integrated, a screw shaft portion is joined to the upper portion, and is vertically installed in the center of the water storage chamber A spindle which is screwed into a female screw portion screwed on the upper inner peripheral surface of the guide shaft and is guided to the guide hole of the guide hollow shaft so as to be rotatable up and down, a joint shaft joined to the upper portion of the spindle, and a joint shaft The automatic rice cooker according to claim 1, comprising a valve opening / closing motor having a drive shaft joined thereto and attached to an upper portion of the tank body .

It has a water supply unit that measures and supplies an appropriate amount of cooked rice water for the amount of rice cooked, and an automatic lid opening / closing means in the rice cooker body, and timers for the time of cooking according to the type of rice cooked and the state of rice treatment In an automatic rice cooker that automatically sets and cooks rice ,
A water supply timer setting unit is provided to command the start of water supply corresponding to the amount of rice cooked from the outside , and the automatic lid opening / closing means includes a lid unlocking mechanism and a lid opening / closing mechanism. A support attached to the upper surface of the handle, a small motor that is fixed to the support and drives the cam panel to rotate, and a pivotal support that can swing up and down on the support by contacting the other end of the cam panel. A pressure lever that presses the lock lever of the lid at one end, and a pressure pin that abuts the lower end against the back surface of the pressure lever and is guided up and down to the support, and the lid opening / closing mechanism supports the rotation of the lid A closed structure in which one end of a torsion coil spring externally fitted to the shaft is locked to the rice cooker body, and the other end is locked to the lid in a state of energizing the elastic force in the closing direction of the lid, A pair of bevel gears with the rotational force of a small motor attached to a drive box provided on the outer peripheral surface Is transmitted to the pinion through the rotational force of the pinion is transmitted to the rack of the lifting rod is pivotally supported between the cooker body and the peripheral wall, an automatic rice cooker comprising a open structure to open the lid by an increase of the lift rod.