JP5359346B2 - rice cooker - Google Patents

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JP5359346B2
JP5359346B2 JP2009034795A JP2009034795A JP5359346B2 JP 5359346 B2 JP5359346 B2 JP 5359346B2 JP 2009034795 A JP2009034795 A JP 2009034795A JP 2009034795 A JP2009034795 A JP 2009034795A JP 5359346 B2 JP5359346 B2 JP 5359346B2
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pressure adjusting
communication hole
adjusting member
internal pressure
rice cooker
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JP2010187885A (en
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信雄 北村
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Tiger Corp
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Tiger Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker eliminating damages or the like of an inner pressure adjusting member and reducing manufacturing costs by installing the inner pressure adjusting member for closing a communication hole connecting the inside of a closed space with its outside on a place where the member is hardly touched with finger or hit by an object or the like. <P>SOLUTION: The rice cooker includes a rice cooker body in which an inner pot is set and a cover body settably/removably set on the cooker body. The cover body includes an upper cover connected with a lower cover and the closed space between the covers. The cover body includes a fitting groove where one side is open and keeps a hinge member provided on the cooker body settable and removable. The communication hole connecting the inside of the closed space with its outside is provided inside the groove. The inner pressure adjusting member is provided on the communication hole. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本願発明は、炊飯器に関し、特に、上カバーと下カバーとの間に密閉空間を有する蓋体を備えた炊飯器に関するものである。   The present invention relates to a rice cooker, and more particularly, to a rice cooker provided with a lid having a sealed space between an upper cover and a lower cover.

従来から、蓋体を炊飯器本体に対して着脱自在とし、蓋体を取り外した状態で丸洗いできるようにした炊飯器が知られている。この炊飯器の蓋体は、上カバーと下カバーを接合し、両カバーの間に断熱材等が収納される密閉空間を有する形態で形成される。   2. Description of the Related Art Conventionally, a rice cooker is known in which a lid is detachable from a rice cooker body and can be washed in a state where the lid is removed. The lid body of this rice cooker is formed in a form having a sealed space in which an upper cover and a lower cover are joined and a heat insulating material or the like is accommodated between both covers.

ところで、炊飯器は、炊飯器本体内に収納される内鍋に水とともにお米を入れ加熱手段により炊飯等する機器である。そのため、蓋体は、炊飯時には密閉空間の空気は膨張し、炊飯終了後には密閉空間の空気は収縮するというように、蓋体の上カバーと下カバーとは、外方への変形と内方への変形を繰り返すことになり、上カバーと下カバーとの接合が外れたり、或いは蓋体が塑性変形する恐れを有している。   By the way, a rice cooker is an apparatus which puts rice with water in the inner pot accommodated in the rice cooker main body, and cooks rice etc. with a heating means. For this reason, the lid covers the upper and lower covers so that the air in the sealed space expands during rice cooking and the air in the sealed space contracts after rice cooking is finished. There is a risk that the upper cover and the lower cover are disconnected from each other, or the lid body is plastically deformed.

本出願人は、このような問題を解決するために蓋体の上カバー或いは下カバーに密閉空間の内外を連通する連通孔を設け、その連通孔に内部圧力調整部材を設け、密閉空間内の圧力の変動を低減するものをすでに出願している。   In order to solve such a problem, the applicant of the present invention provides a communication hole that communicates the inside and outside of the sealed space in the upper cover or the lower cover of the lid, and an internal pressure adjusting member is provided in the communication hole. An application for reducing pressure fluctuation has already been filed.

そのものを図７、８に示す。図７（Ａ）、（Ｂ）のものは、内部圧力調整部材を上カバーに設けるもので、図８のものは、内部圧力調整部材を下カバーに設けるものであり、いずれも内部圧力調整部材として通気性を有し、水分の通過を阻止する部材を用いている。   This is shown in FIGS. 7A and 7B are provided with an internal pressure adjusting member on the upper cover, and those of FIG. 8 are provided with the internal pressure adjusting member on the lower cover, both of which are internal pressure adjusting members. A member having air permeability and preventing passage of moisture is used.

図７（Ａ）、（Ｂ）のものは、内部圧力調整部材７を上カバー２に設けるものであり、図に示すように、蓋体１は、上カバー２と下カバー３を内部に密閉空間４を有する形態で接合してなり、上カバー２の図示しないヒンジ部材が係合する箇所には、密閉空間４方向に凹み、上方と側方（図７（Ｂ）の右側）が開口した嵌合凹所５が設けられ、その嵌合凹所５の底面に密閉空間４の内外を連通する連通孔６を設けている。   7A and 7B, the internal pressure adjusting member 7 is provided on the upper cover 2, and as shown in the figure, the lid 1 has the upper cover 2 and the lower cover 3 sealed inside. It is joined in a form having a space 4 and is recessed in the direction of the sealed space 4 at the position where the hinge member (not shown) of the upper cover 2 is engaged, and the upper side and the side (the right side in FIG. 7B) are opened. A fitting recess 5 is provided, and a communication hole 6 that communicates the inside and outside of the sealed space 4 is provided on the bottom surface of the fitting recess 5.

この連通孔６には、内部に通気性を有し、水分の通過を阻止する部材７を入れた筒状スリーブ８がシール材９とともに嵌合され、更に筒状スリーブ８の下端部には支持部材１０を設け、内部圧力調整部材７を支持している。そのため、例え、蓋体１を取り外した時に何らかの原因で内部圧力調整部材７に上方から力が加わり、内部圧力調整部材７が下方に押圧されても支持部材１０により内部圧力調整部材７が密閉空間内に落ち込むことはない。   A cylindrical sleeve 8 containing a member 7 that has air permeability and prevents moisture from passing therethrough is fitted into the communication hole 6 together with a sealing material 9, and is further supported at the lower end of the cylindrical sleeve 8. A member 10 is provided to support the internal pressure adjusting member 7. Therefore, for example, when the lid 1 is removed, a force is applied to the internal pressure adjusting member 7 from above for some reason, and the internal pressure adjusting member 7 is sealed by the support member 10 even if the internal pressure adjusting member 7 is pressed downward. It does n’t fall inside.

また、図８のものは、内部圧力調整部材７を下カバー３に設けるものであり、図に示すように、下カバー３には、密閉空間４方向に突出する凸部１１が設けられ、その凸部１１の上面に密閉空間４の内外を連通する連通孔６を設けている。   Further, in FIG. 8, the internal pressure adjusting member 7 is provided on the lower cover 3, and as shown in the figure, the lower cover 3 is provided with a convex portion 11 protruding in the direction of the sealed space 4. A communication hole 6 that communicates the inside and outside of the sealed space 4 is provided on the upper surface of the convex portion 11.

前記凸部１１には、シール材１２、内部圧力調整部材７及び金属蓋１３等が上から下に積層され、それら３部材はビス１４により一体に取り付けられている。そのため、例え、蓋体１を開蓋したり或いは取り外した時に何らかの原因で内部圧力調整部材７方向に力が加わったとしても、内部圧力調整部材７の前方に金属蓋１３及びビス１４があるため、内部圧力調整部材７が損傷或いは破断することはない（特許文献１参照）。   On the convex portion 11, a sealing material 12, an internal pressure adjusting member 7, a metal lid 13, and the like are laminated from the top to the bottom, and these three members are integrally attached by screws 14. Therefore, even if a force is applied in the direction of the internal pressure adjusting member 7 for some reason when the lid 1 is opened or removed, the metal lid 13 and the screw 14 are present in front of the internal pressure adjusting member 7. The internal pressure adjusting member 7 is not damaged or broken (see Patent Document 1).

ところが、上記のものは、密閉空間４内の圧力変動を低減する効果を有するが、図７（Ａ）、（Ｂ）のものは、内部圧力調整部材７の他に、筒状スリーブ８、シール材９及び支持部材１０を必須とするとともに、連通孔６の上方に連通孔６を覆う上壁がないため、調圧部材から流出するおねばが連通孔７に入り込み連通孔７を塞ぐ恐れがあり、また、図８のものは、内部圧力調整部材７の他に、シール材１２、金属蓋１３及びビス１４を必須とするというように、いずれのものもその取り付けが複雑で且つ手間を要し、生産コストが高騰する等の問題を有していた。   However, the above has the effect of reducing the pressure fluctuation in the sealed space 4, but the ones in FIGS. 7A and 7B have the cylindrical sleeve 8, the seal in addition to the internal pressure adjusting member 7. Since the material 9 and the support member 10 are essential, and there is no upper wall that covers the communication hole 6 above the communication hole 6, there is a risk that a bed flowing out from the pressure adjusting member enters the communication hole 7 and closes the communication hole 7. In addition to the internal pressure adjusting member 7, the one shown in FIG. 8 requires a sealing material 12, a metal lid 13 and a screw 14, and all of them are complicated to install and require labor. However, the production cost has risen.

特公平４−５５６９６号公報Japanese Patent Publication No. 4-55696

本願発明の目的は、密閉空間の内外を連通する連通孔及び該連通孔を塞ぐ内部圧力調整部材を、指でさわったり物が当たったりしにくい箇所に設けることにより上記問題を解決することにある。   An object of the present invention is to solve the above-mentioned problem by providing a communication hole that communicates the inside and outside of a sealed space and an internal pressure adjusting member that closes the communication hole at a place where it is difficult to touch with a finger or hit an object. .

上記目的を達成するため、本願発明は以下の構成を採用する。   In order to achieve the above object, the present invention adopts the following configuration.

請求項１に係る発明では、内部に内鍋がセットされる炊飯器本体と、前記炊飯器本体に着脱自在な蓋体とを有する炊飯器であって、前記蓋体は、上カバーと下カバーが接合し、両カバーの間に密閉空間を有し、前記蓋体は、１側方が開口し、前記炊飯器本体に設けられるヒンジ部材が着脱可能な嵌合溝を有し、前記嵌合溝内には、前記密閉空間の内外を連通する連通孔を有し、前記連通孔には、内部圧力調整部材を設け、前記連通孔の周りに凹所を設け、前記内部圧力調整部材を、前記凹所に前記密閉空間側から前記連通孔を塞ぐように設ける構成を特徴とする。
In the invention which concerns on Claim 1, it is a rice cooker which has the rice cooker main body by which an inner pot is set inside, and the cover body which can be attached or detached to the said rice cooker main body, Comprising: The said cover body is an upper cover and a lower cover. Are joined, have a sealed space between both covers, the lid has one side open, and has a fitting groove in which a hinge member provided in the rice cooker body can be attached and detached, and the fitting In the groove, there is a communication hole communicating the inside and outside of the sealed space, the communication hole is provided with an internal pressure adjustment member, a recess is provided around the communication hole, the internal pressure adjustment member, and wherein configuration of Ru formed from the sealed space side in the recess so as to close the communication hole.

請求項２に係る発明では、内部に内鍋がセットされる炊飯器本体と、前記炊飯器本体に着脱自在な蓋体とを有する炊飯器であって、前記蓋体は、上カバーと下カバーが接合し、両カバーの間に密閉空間を有し、前記蓋体は、１側方が開口し、前記炊飯器本体に設けられるヒンジ部材が着脱可能な嵌合溝を有し、前記嵌合溝内には、前記密閉空間の内外を連通する連通孔を有し、前記連通孔には、内部圧力調整部材を設け、前記連通孔の周りにリブを設け、前記内部圧力調整部材を、前記リブで囲み前記密閉空間側から前記連通孔を塞ぐように設ける構成を特徴とする。
In the invention which concerns on Claim 2, it is a rice cooker which has the rice cooker main body by which an inner pot is set inside, and the cover body which can be attached or detached to the said rice cooker main body, Comprising: The said cover body is an upper cover and a lower cover. Are joined, have a sealed space between both covers, the lid has one side open, and has a fitting groove in which a hinge member provided in the rice cooker body can be attached and detached, and the fitting The groove has a communication hole that communicates the inside and outside of the sealed space, the communication hole is provided with an internal pressure adjusting member, a rib is provided around the communication hole, and the internal pressure adjusting member is It is characterized in that it is provided with a rib so as to close the communication hole from the sealed space side .

請求項１に係る発明では、蓋体を、上カバーと下カバーで接合し、両カバー間に密閉空間を形成し、蓋体に、１側方が開口する形態（上記従来例で言えば、嵌合凹所の上方に上壁を有する形態）であってヒンジ部材が着脱可能な嵌合溝を設け、該嵌合溝内に密閉空間の内外を連通する連通孔を設けるとともに、該連通孔に内部圧力調整部材を設けることにより、密閉空間内の圧力変動を低減することができるとともに、内部圧力調整部材の上面にホコリ等が付きにくくなり内部圧力調整部材の目詰まりを低減することができ、更に指及び物が当たりにくくなり指及び物による内部圧力調整部材の損傷並びに破損を低減することができる。更に、調圧部材から流出するおねばが連通孔に入り込み連通孔を塞ぐ弊害を低減することができる。
また、内部圧力調整部材を、密閉空間側から連通孔を塞ぐように設けることにより、例えば、内部圧力調整部材を接着剤で密閉空間側から接着するという簡単な取り付け手段で取り付けることができるようになり、それだけ生産コストを低減することができる。更に指及び物が内部圧力調整部材により当たりにくくなり、指及び物による内部圧力調整部材の損傷並びに破損をより低減することができる。
また、連通孔の周りに凹所を設け、内部圧力調整部材を前記凹所に設けることにより、例え密閉空間内に設けられる断熱材等が内部圧力調整部材を覆うようになったとしても、内部圧力調整部材の表面に断熱材等が当接し、内部圧力調整部材の機能を低下或いは停止させることはないため、断熱材等の取り付け並びに蓋体の形成が容易になり、内部圧力調整部材の信頼性を高めることができる。
In the invention according to claim 1, the lid is joined by the upper cover and the lower cover, a sealed space is formed between both covers, and one side of the lid is opened (in the above conventional example, A fitting groove in which the hinge member can be attached and detached is provided, and a communication hole that communicates the inside and outside of the sealed space is provided in the fitting groove, and the communication hole By providing the internal pressure adjusting member, it is possible to reduce pressure fluctuations in the sealed space and to prevent clogging of the internal pressure adjusting member because the upper surface of the internal pressure adjusting member is less likely to become dusty. Furthermore, it becomes difficult for the finger and the object to hit, and damage and breakage of the internal pressure adjusting member due to the finger and the object can be reduced. Further, it is possible to reduce the adverse effect that the rice balls flowing out from the pressure adjusting member enter the communication hole and block the communication hole.
Further, the internal pressure regulating member is provided so that close the communication hole from the closed space side, if example embodiment, so that can be mounted in a simple attachment means of adhering the closed space side inside the pressure adjusting member with an adhesive Thus, the production cost can be reduced accordingly. Furthermore, it becomes difficult for a finger and an object to hit by the internal pressure adjusting member, and damage and breakage of the internal pressure adjusting member due to the finger and the object can be further reduced.
Further, a recess is provided around the communicating hole, as by providing an internal pressure adjusting member in we said recess, heat insulating material such as provided in example sealed space is started to cover the inner pressure adjusting member, Since the heat insulating material or the like abuts on the surface of the internal pressure adjusting member, and the function of the internal pressure adjusting member is not lowered or stopped, it becomes easy to attach the heat insulating material and to form the lid body. Reliability can be increased.

請求項２に係る発明では、前記連通孔の周りにリブを設け、前記内部圧力調整部材を前記リブで囲むことにより、請求項１に係る発明の効果と同様に、例え密閉空間内に断熱材等を有し、その断熱材等が内部圧力調整部材を覆うように設けられていたとしても、内部圧力調整部材の表面に断熱材等が当接し、内部圧力調整部材の機能を低下或いは停止させることはないため、断熱材等の取り付け並びに蓋体の形成が容易になり、内部圧力調整部材の信頼性を高めることができる。 In the invention according to claim 2 , a rib is provided around the communication hole, and the internal pressure adjusting member is surrounded by the rib, so that, similarly to the effect of the invention according to claim 1 , the heat insulating material, for example, in the sealed space. Even if the heat insulating material is provided so as to cover the internal pressure adjusting member, the heat insulating material contacts the surface of the internal pressure adjusting member, and the function of the internal pressure adjusting member is lowered or stopped. Therefore, it is easy to attach a heat insulating material and the like and to form a lid, and it is possible to improve the reliability of the internal pressure adjusting member.

本願発明の炊飯器の全体断面図Whole sectional view of the rice cooker of the present invention 本願発明の蓋体を後方からみた斜視図The perspective view which looked at the lid of the present invention from the rear 図１のＡ部の拡大断面図Enlarged sectional view of part A in FIG. 図１のＡ部の他の例の拡大断面図Expanded sectional view of another example of part A in FIG. 内部圧力調整部材の表面に保護部材を設けた拡大断面図Enlarged cross-sectional view with a protective member on the surface of the internal pressure adjustment member 内部圧力調整部材を他の箇所に設けた拡大断面図Expanded cross-sectional view with internal pressure adjustment member provided at other locations 従来の内部圧力調整部材の斜視図及び断面図A perspective view and a sectional view of a conventional internal pressure adjusting member 従来の他の内部圧力調整部材の断面図Sectional view of another conventional internal pressure adjusting member

図１は炊飯器の全体断面図を示し、図２は蓋体を後方からみた斜視図を示し、図３は図１のＡ部の拡大断面図を示す。なお、炊飯器の表示パネル側（図１の左側）を前方側、ヒンジ部材側（図１の右側）を後方側とし、前後方向側に直交する側（図１の紙面に直交する側）を左右側とする。   1 shows an overall cross-sectional view of the rice cooker, FIG. 2 shows a perspective view of the lid as seen from the rear, and FIG. 3 shows an enlarged cross-sectional view of part A in FIG. In addition, let the display panel side (left side of FIG. 1) of the rice cooker be the front side, the hinge member side (right side of FIG. 1) be the rear side, and the side orthogonal to the front-rear direction side (side orthogonal to the paper surface of FIG. 1). Left and right.

炊飯器Ｓは炊飯器本体２０及び蓋体４０等からなる。炊飯器本体２０は、内部に内鍋２１が収納される合成樹脂製の有底筒状の内ケース２２と、外装を形成する金属製の外ケース２３と、底部を形成する皿状で合成樹脂製の底部材２４とを有し、それら部材は、例えば無理バメ等の手段によって一体に結合される。   The rice cooker S includes a rice cooker body 20 and a lid 40. The rice cooker body 20 includes a synthetic resin bottomed cylindrical inner case 22 in which an inner pot 21 is housed, a metal outer case 23 that forms the exterior, and a dish that forms the bottom of the synthetic resin. And a bottom member 24 made of metal, and these members are joined together by means of, for example, forced swallowing.

前記内ケース２２の外周面には、その底部及び底部から側面にかけてのコーナー部にそれぞれワークコイルからなる底部コイル２５及びコーナーコイル２６が設けられるとともに、内ケース２２の底部中央には、内ケース２２内に内鍋２１を収納したとき、内鍋２１の底部が当接するセンタセンサ２７が設けられ、このセンタセンサ２７で内鍋２１の温度を検知し、制御装置による加熱及び保温制御が行われる。   On the outer peripheral surface of the inner case 22, a bottom coil 25 and a corner coil 26 made of work coils are provided at the bottom portion and corner portions from the bottom portion to the side surface, respectively. When the inner pot 21 is stored inside, a center sensor 27 with which the bottom of the inner pot 21 abuts is provided. The center sensor 27 detects the temperature of the inner pot 21 and performs heating and heat retention control by the control device.

前記内鍋２１は、底部コイル２５及びコーナーコイル２６により誘起される渦電流によって自己発熱が可能なステンレス鋼等の鉄系金属等で形成され、該内鍋２１を前記内ケース２２内にセットし、炊飯用のスイッチを押すと、センタセンサ２７がオンし、底部コイル２５及びコーナーコイル２６が通電し、前記渦電流に起因したジュール熱により内鍋２１が加熱し、飯米等の内容物の炊飯が行われることになる。   The inner pot 21 is formed of iron-based metal such as stainless steel capable of self-heating by eddy currents induced by the bottom coil 25 and the corner coil 26, and the inner pot 21 is set in the inner case 22. When the switch for cooking rice is pressed, the center sensor 27 is turned on, the bottom coil 25 and the corner coil 26 are energized, the inner pot 21 is heated by Joule heat caused by the eddy current, and the cooking of the contents such as cooked rice Will be done.

炊飯器本体２０の前方上部には、各種スイッチを有する表示パネル２８が設けられ、表示パネル２８上の各種スイッチを操作することによりユーザーが望む炊飯等が実行される。また、炊飯器本体２０内には、ＩＧＢＴ等の発熱素子を冷却する冷却フィン２９、並びに該冷却フィン２９等に冷却風を送る冷却ファン３０が設けられ、炊飯器本体２０内を含め必要箇所を冷却する。   A display panel 28 having various switches is provided on the front upper portion of the rice cooker body 20, and rice cooking desired by the user is performed by operating various switches on the display panel 28. Moreover, in the rice cooker main body 20, a cooling fin 29 for cooling a heating element such as an IGBT and a cooling fan 30 for sending cooling air to the cooling fin 29 are provided. Cooling.

炊飯器本体２０には、炊飯器Ｓを持ち運びする取手３１が設けられ、更に、炊飯器本体２０の後方上部にはヒンジ部材３２が設けられる。このヒンジ部材３２は、平面視矩形状で断面略円弧状の部材であり、ヒンジピン３３に軸支され、それぞれの端部を炊飯器本体２０と蓋体４０に係合しその中央部をヒンジピン３３に軸支されるばね３４の作用により回動自在にされる。そして、ヒンジ部材３２は、後記の蓋体４０と着脱自在にされており、蓋体４０に装着された状態で、炊飯器Ｓの前方上部に設けられる蓋ロック部材３５を押圧するとばね３４の力により蓋体４０を後方側に開放する。   The rice cooker body 20 is provided with a handle 31 for carrying the rice cooker S, and further, a hinge member 32 is provided at the upper rear portion of the rice cooker body 20. The hinge member 32 is a member having a rectangular shape in plan view and a substantially arc-shaped cross section. The hinge member 32 is pivotally supported by the hinge pin 33, and engages with the rice cooker body 20 and the lid body 40. It is made rotatable by the action of a spring 34 that is pivotally supported. The hinge member 32 is detachably attached to the lid 40 described later. When the hinge member 32 is attached to the lid 40 and presses the lid lock member 35 provided in the upper front portion of the rice cooker S, the force of the spring 34 is applied. Thus, the lid 40 is opened rearward.

蓋体４０は、合成樹脂製の部材であり、上面を形成する上カバー４１と、下面を形成する下カバー４２を有する。そして、上カバー４１と下カバー４２とは、それぞれの周端部が当接する形態で形成されており、それぞれの周端部は、例えば振動溶着或いは高周波溶着或いは熱線溶着等の方法により接合され、接合後では、上カバー４１と下カバー４２との間に密閉空間４３を形成する。そして、密閉空間４３内には、断熱材４４及びアルミ箔等からなる熱反射部材４５が設けられ、蓋体４０から上方への熱の逃げを防止している。   The lid 40 is a synthetic resin member, and includes an upper cover 41 that forms an upper surface and a lower cover 42 that forms a lower surface. And the upper cover 41 and the lower cover 42 are formed in a form in which the respective peripheral end portions come into contact with each other, and the respective peripheral end portions are joined by a method such as vibration welding, high frequency welding, or hot wire welding, After joining, the sealed space 43 is formed between the upper cover 41 and the lower cover 42. A heat reflecting member 45 made of a heat insulating material 44 and aluminum foil or the like is provided in the sealed space 43 to prevent heat from escaping upward from the lid 40.

蓋体４０の中央部には、調圧部材４６が着脱自在に設けられる。この調圧部材４６は、蒸気通路４６ａ、蒸気弁４６ｂ及び蒸気口４６ｃを有し、炊飯時内鍋２１内の過剰な蒸気を蒸気口４６ｃから外部に放出する。   A pressure adjusting member 46 is detachably provided at the center of the lid 40. The pressure adjusting member 46 includes a steam passage 46a, a steam valve 46b, and a steam port 46c, and discharges excessive steam in the inner pot 21 during cooking to the outside from the steam port 46c.

前記下カバー４２の下方には、内蓋４７が着脱自在に取り付けられる。この内蓋４７には、肩部材３６に取り付けられる肩ヒータ３７からの熱を受け、ふきこぼれや露付きを防止したり等する。また、この内蓋４７の外周縁には、シールパッキン３８が狭持され、蓋体４０の閉蓋時、前記内鍋２１の上縁部に当接し、内鍋２１内の熱の逃げを防止している。   An inner lid 47 is detachably attached below the lower cover 42. The inner lid 47 receives heat from the shoulder heater 37 attached to the shoulder member 36 to prevent spillage and dew condensation. Further, a seal packing 38 is sandwiched around the outer peripheral edge of the inner lid 47, and abuts against the upper edge of the inner pot 21 when the lid body 40 is closed, thereby preventing escape of heat in the inner pot 21. doing.

前記蓋体４０の後方側には、嵌合溝５０が設けられる。この嵌合溝５０は、図１及び図２に示すように、略水平な上壁５０ａ、略垂直の左右側壁５０ｂ、５０ｂ、溝の奥側の略垂直な奥側壁５０ｃ及び略水平な底壁５０ｄで囲まれ、後方側の側部開口５０ｅ（奥側壁５０ｃに対向する側の開口）を有する断面略コ字状の溝で、唯一の側部開口５０ｅからヒンジ部材３２が嵌合溝５０内に挿入され嵌合される。   A fitting groove 50 is provided on the rear side of the lid 40. As shown in FIGS. 1 and 2, the fitting groove 50 includes a substantially horizontal top wall 50a, substantially vertical left and right side walls 50b and 50b, a substantially vertical back side wall 50c on the back side of the groove, and a substantially horizontal bottom wall. The hinge member 32 is surrounded by 50d and has a substantially U-shaped cross section having a rear side opening 50e (opening facing the back side wall 50c). Inserted and fitted.

そして、底壁５０ｄには、略Ｕ字状の係止溝５１が設けられるとともに、ヒンジ部材３２の下面にはばねにより常時下方へ押圧された係止片５２が設けられており、ヒンジ部材３２を嵌合溝５０に挿入すると、ヒンジ部材３２下面の係止片５２が係止溝５１に係合して両部材が嵌合し、その状態から蓋体４０を引っ張ると係止片５２と係止溝５１との係合が外れ、蓋体４０はヒンジ部材３２から引き離される。   The bottom wall 50d is provided with a substantially U-shaped locking groove 51, and the lower surface of the hinge member 32 is provided with a locking piece 52 that is always pressed downward by a spring. Is inserted into the fitting groove 50, the locking piece 52 on the lower surface of the hinge member 32 is engaged with the locking groove 51, and both members are fitted. When the lid 40 is pulled from this state, the locking piece 52 is engaged. The engagement with the stop groove 51 is released, and the lid body 40 is pulled away from the hinge member 32.

炊飯器Ｓの蓋体４０は、上記したように上カバー４１と下カバー４２との周端部を溶着等の手段により接合し、両カバー４１、４２との間に密閉空間４３を形成している。すると炊飯時には密閉空間４３の空気が膨張し、炊飯終了後では膨張した空気が収縮したりして最悪時には、上カバー４１と下カバー４２との周端部の接合が外れたり、或いは蓋体４０が変形する恐れが生じる。そのような弊害を防止するため、蓋体４０に密閉空間４３の内外を連通する連通孔を設け、更にその連通孔に密閉空間４３内に水等が浸入しない手段を施す必要がある。   As described above, the lid 40 of the rice cooker S joins the peripheral ends of the upper cover 41 and the lower cover 42 by means such as welding, and forms a sealed space 43 between the covers 41 and 42. Yes. Then, the air in the sealed space 43 expands at the time of rice cooking, and the expanded air contracts after the completion of the rice cooking. At the worst, the joining of the peripheral ends of the upper cover 41 and the lower cover 42 is released, or the lid 40 May be deformed. In order to prevent such an adverse effect, it is necessary to provide a communication hole that allows the inside and outside of the sealed space 43 to communicate with the lid body 40, and to provide means for preventing water and the like from entering the sealed space 43.

本願発明は、蓋体４０の密閉空間４３の内外を連通する連通孔５５を、図１及び図２に示すように嵌合溝５０内の奥側壁５０ｃ近傍の底壁５０ｄに設けることを特徴とするものである。この連通孔５５を設ける位置は、側部開口５０ｅからできる限り離れた位置であり、人が容易に触れにくく、或いは物が容易に当たりにくい位置でもある。連通孔５５はは係止溝５１より奥側に設けている。   The present invention is characterized in that a communication hole 55 that communicates the inside and outside of the sealed space 43 of the lid 40 is provided in the bottom wall 50d near the back side wall 50c in the fitting groove 50 as shown in FIGS. To do. The position where the communication hole 55 is provided is a position as far as possible from the side opening 50e, and is also a position where it is difficult for a person to touch easily or a thing is not easily hit. The communication hole 55 is provided on the back side of the locking groove 51.

このような位置に連通孔５５を設けることにより、例え蒸気口４６ｃからおねばが流出し、上カバー４１上面を流れ落ちたとしても、連通孔５５の上方には上壁５０ａが設けられているため流れ落ちるおねばが連通孔５５に落下し、連通孔５５が目詰まりすることはなくなる。なお、図７の従来例のものでは、上カバー４１上面を流れ落ちるおねばは連通孔に流れ込み、連通孔が目詰まりする弊害を有している。   By providing the communication hole 55 at such a position, even if the rice cake flows out from the steam port 46c and flows down the upper surface of the upper cover 41, the upper wall 50a is provided above the communication hole 55. The falling bed will not fall into the communication hole 55 and the communication hole 55 will not be clogged. In the case of the conventional example of FIG. 7, if it flows down on the upper surface of the upper cover 41, it flows into the communication hole and has a detrimental effect that the communication hole is clogged.

即ち、図３に図１のＡ部を拡大して示すように、嵌合溝５０内の奥側壁５０ｃ近傍の底壁５０ｄには、密閉空間４３の内外を連通する連通孔５５が設けられる。そして、この連通孔５５を塞ぐように内部圧力調整部材５６が密閉空間４３側から取り付けられる。その取り付けは、例えば図５に示すように内部圧力調整部材５６の取り付け面に塗布した接着剤等の粘着層５８により行われる。   That is, as shown in FIG. 3 in which the portion A in FIG. 1 is enlarged, the bottom wall 50d in the vicinity of the back side wall 50c in the fitting groove 50 is provided with a communication hole 55 that communicates the inside and outside of the sealed space 43. An internal pressure adjusting member 56 is attached from the sealed space 43 side so as to close the communication hole 55. The attachment is performed by an adhesive layer 58 such as an adhesive applied to the attachment surface of the internal pressure adjusting member 56 as shown in FIG.

内部圧力調整部材５６は、空気は通し水分の通過を阻止する四フッ化エチレン樹脂多孔質膜、例えば、テミッシュ（商品名、日東電工株式会社製）等で形成されるシート状で多孔質状の部材を用いることができる。このような部材を用いることにより、密閉空間４３内の圧力調整が可能となり、且つ密閉空間４３内への水等の浸入が防止できる。   The internal pressure adjusting member 56 is a sheet-like, porous material formed of a tetrafluoroethylene resin porous membrane that allows air to pass therethrough and prevents the passage of moisture, for example, Temisch (trade name, manufactured by Nitto Denko Corporation). A member can be used. By using such a member, the pressure in the sealed space 43 can be adjusted, and water or the like can be prevented from entering the sealed space 43.

なお、嵌合溝５０内の奥側壁５０ｃ近傍の底壁５０ｄに連通孔５５を設けることにより、蓋体４０をヒンジ部材３２に嵌合後は勿論のこと、例え蓋体４０をヒンジ部材３２から取り外した後でも、人の指或いは物が当たりにくくなる。しかし、蓋体４０をヒンジ部材３２から取り外した後では、連通孔５５にまで指或いは物を入れようと思えば入れることができ、内部圧力調整部材５６が底壁５０ｄの上面に取り付けていると、指或いは物が内部圧力調整部材５６に当たり、内部圧力調整部材５６が損傷したり破断する恐れが生じるが、上記例のように内部圧力調整部材５６を密閉空間４３側から取り付けると、例え連通孔５５にまで指或いは物を入れたとしても、指或いは物が内部圧力調整部材５６に直接当たりにくくなるため、内部圧力調整部材５６が損傷したり破断する恐れはほとんどなくなる。   In addition, by providing the communication hole 55 in the bottom wall 50d near the back side wall 50c in the fitting groove 50, the lid 40 can be removed from the hinge member 32 after the lid 40 is fitted to the hinge member 32. Even after removal, it becomes difficult for human fingers or objects to hit. However, after removing the lid 40 from the hinge member 32, it is possible to insert a finger or an object into the communication hole 55, and the internal pressure adjusting member 56 is attached to the upper surface of the bottom wall 50d. If the finger or object hits the internal pressure adjusting member 56 and the internal pressure adjusting member 56 may be damaged or broken, if the internal pressure adjusting member 56 is attached from the sealed space 43 side as in the above example, for example, the communication hole Even if a finger or an object is inserted up to 55, it is difficult for the finger or object to directly contact the internal pressure adjusting member 56, so that there is almost no possibility that the internal pressure adjusting member 56 is damaged or broken.

図５に示すように、内部圧力調整部材５６の粘着層５８が設けられる面と反対側の面に例えばポリエステル不織布等からなる保護部材５９を設けるとよい。このような積層構造にすることにより、例え密閉空間４３内にゴミ等があったとしてもそのゴミ等が内部圧力調整部材５６の表面に付着し内部圧力調整部材５６の機能が損なわれる弊害を防止することができる。   As shown in FIG. 5, a protective member 59 made of, for example, a polyester nonwoven fabric may be provided on the surface opposite to the surface on which the adhesive layer 58 of the internal pressure adjusting member 56 is provided. By adopting such a laminated structure, even if dust or the like is present in the sealed space 43, the dust or the like adheres to the surface of the internal pressure adjustment member 56, thereby preventing the adverse effect of impairing the function of the internal pressure adjustment member 56. can do.

また、内部圧力調整部材５６の取付位置には、図３に示すように凹所５７が設けられる。この凹所５７は、連通孔５５周りの底壁５０ｄの底部に形成され、内部圧力調整部材５６が入り込むことができる大きさで、且つ内部圧力調整部材５６の厚さより大きい高さにされる。そのため、凹所５７内に内部圧力調整部材５６を取り付けると、内部圧力調整部材５６はその全体が凹所５７内に完全に埋没する。   Further, a recess 57 is provided at the mounting position of the internal pressure adjusting member 56 as shown in FIG. The recess 57 is formed at the bottom of the bottom wall 50 d around the communication hole 55, and has a size that allows the internal pressure adjusting member 56 to enter and has a height greater than the thickness of the internal pressure adjusting member 56. Therefore, when the internal pressure adjusting member 56 is attached in the recess 57, the entire internal pressure adjusting member 56 is completely buried in the recess 57.

ところで、密閉空間４３内には、上記したように断熱材４４及びアルミ箔等からなる熱反射部材４５が設けられ、蓋体４０から上方への熱の逃げを防止している。これら断熱材４４及び熱反射部材４５は、密閉空間４３内のできるだけ広い範囲に設けることが望まれるが、断熱材４４は厚みがあり、密閉空間４３の隅々まで設けることができないため、薄い熱反射部材４５を断熱材４４より大きくし、その外周を密閉空間４３の隅々まで広げて設けられる。   By the way, as described above, the heat reflecting member 45 made of the heat insulating material 44 and the aluminum foil is provided in the sealed space 43 to prevent the heat from escaping upward from the lid 40. Although it is desirable that the heat insulating material 44 and the heat reflecting member 45 are provided in as wide a range as possible in the sealed space 43, the heat insulating material 44 is thick and cannot be provided to every corner of the sealed space 43. The reflecting member 45 is made larger than the heat insulating material 44, and the outer periphery thereof is provided so as to extend to every corner of the sealed space 43.

ところが熱反射部材４５を密閉空間４３の隅々まで広げて設けると、熱反射部材４５が内部圧力調整部材５６を覆うようになり、内部圧力調整部材５６の機能が損なわれることになる。前記凹所５７は、例え、熱反射部材４５等の断熱材が内部圧力調整部材５６を覆うようになっても、凹所５７が、熱反射部材４５等の断熱材が内部圧力調整部材５６の表面に当接するのを防止し、内部圧力調整部材５６の機能が損なわれるような弊害を防止する。なお、熱反射部材４５等の断熱材が内部圧力調整部材５６を覆うようになっていなければ前記凹所５７はなくてもよい。また、前記凹所５７を上記した底壁５０ｄの下面に換え底壁５０ｄの上面に設け、その凹所５７内に内部圧力調整部材５６を設けるようにしてもよい。   However, if the heat reflecting member 45 is provided so as to extend to every corner of the sealed space 43, the heat reflecting member 45 covers the internal pressure adjusting member 56, and the function of the internal pressure adjusting member 56 is impaired. For example, even if the heat insulating material such as the heat reflecting member 45 covers the internal pressure adjusting member 56, the recessed portion 57 may be the heat insulating material such as the heat reflecting member 45 of the internal pressure adjusting member 56. The contact with the surface is prevented, and the adverse effect that the function of the internal pressure adjusting member 56 is impaired is prevented. Note that the recess 57 may not be provided as long as a heat insulating material such as the heat reflecting member 45 does not cover the internal pressure adjusting member 56. Further, the recess 57 may be provided on the upper surface of the bottom wall 50d instead of the bottom surface of the bottom wall 50d, and the internal pressure adjusting member 56 may be provided in the recess 57.

図４に図３のものの変形例を示す。図４のものは図３の凹所５７に換えてリブ６０を用いるものである。リブ６０は、内部圧力調整部材５６の厚さよりは長い略円柱状或いは円弧状のもので、複数個、略同一円周上に配置してなる。そのため、図３のものと同様に、例え、熱反射部材４５等の断熱材が内部圧力調整部材５６を覆うようになっても、リブ６０が熱反射部材４５等の断熱材が内部圧力調整部材５６の表面に当接するのを防止し、内部圧力調整部材５６の機能が損なわれる弊害を防止することができる。   FIG. 4 shows a modification of the configuration shown in FIG. 4 uses a rib 60 in place of the recess 57 in FIG. The ribs 60 are substantially cylindrical or arcuate longer than the thickness of the internal pressure adjusting member 56, and a plurality of ribs 60 are arranged on substantially the same circumference. Therefore, as in the case of FIG. 3, even if the heat insulating material such as the heat reflecting member 45 covers the internal pressure adjusting member 56, the heat insulating material such as the heat reflecting member 45 becomes the internal pressure adjusting member. It is possible to prevent contact with the surface of 56, and to prevent the adverse effect of impairing the function of the internal pressure adjusting member 56.

図６のものは更なる変形例を示す。上記の例は、連通孔５５及び内部圧力調整部材５６をヒンジ機構近傍に設けるものであるが、図６のものは、蓋飾りパーツの下部に設けるものである。   FIG. 6 shows a further variant. In the above example, the communication hole 55 and the internal pressure adjusting member 56 are provided in the vicinity of the hinge mechanism, but the one in FIG. 6 is provided in the lower part of the lid decoration part.

蓋体４０の上カバー４１の上面には、ステンレス等の蓋飾りパーツ６１が設けられる。この蓋飾りパーツ６１は、中央開口６１ａを有する略円盤状の部材で、その中央開口６１ａに調圧部材４６部分を嵌入する形態で取り付けられる。   On the upper surface of the upper cover 41 of the lid 40, a lid decoration part 61 such as stainless steel is provided. The lid decoration part 61 is a substantially disk-shaped member having a central opening 61a, and is attached in such a manner that the pressure adjusting member 46 is inserted into the central opening 61a.

そして、蓋飾りパーツ６１の中央開口６１ａ近傍の上カバー４１の上面には、凹部６２が設けられ、更にこの凹部６２の中央部には、密閉空間４３の内外を連通する連通孔６３が設けられる。そして、この凹部６２内に内部圧力調整部材６５が取り付けられるとともに、前記蓋飾りパーツ６１には、凹部６２に連通する穴６６が１個或いは複数個設けられる。   A recess 62 is provided on the upper surface of the upper cover 41 in the vicinity of the center opening 61 a of the lid decoration part 61, and a communication hole 63 that communicates the inside and outside of the sealed space 43 is provided at the center of the recess 62. . An internal pressure adjusting member 65 is attached in the recess 62, and the lid decoration part 61 is provided with one or a plurality of holes 66 communicating with the recess 62.

前記凹部６２の深さは、内部圧力調整部材６５の厚さより大きくし、蓋飾りパーツ６１と内部圧力調整部材６５との間に隙間を形成している。なお、前記穴６６は、できるだけ小さくし、凹部６２内に水及びゴミ等が入りにくくするのが好ましい。   The depth of the recess 62 is larger than the thickness of the internal pressure adjusting member 65, and a gap is formed between the lid decoration part 61 and the internal pressure adjusting member 65. The hole 66 is preferably made as small as possible to make it difficult for water and dust to enter the recess 62.

上記したように、蓋体４０に密閉空間４３の内外を連通する連通孔５５を設け、この連通孔５５を塞ぐような形態で内部圧力調整部材５６を設けることにより、溶着によって接合された箇所への膨張収縮時の負荷を軽減でき、破損し難くなる。   As described above, the communication hole 55 that communicates the inside and the outside of the sealed space 43 is provided in the lid body 40, and the internal pressure adjusting member 56 is provided in such a form as to close the communication hole 55, so that the portion joined by welding is connected. The load at the time of expansion and contraction can be reduced, making it difficult to break.

また、密閉空間４３の内部圧力を調整することで、密閉空間４３の冷熱による膨張収縮量が緩和されるので、炊飯時等の熱時に蓋が変形（膨らみ）し、肩部材３６との隙が大きくなる外観不良を防ぐことができる。   Further, by adjusting the internal pressure of the sealed space 43, the expansion and contraction amount due to the cold heat of the sealed space 43 is alleviated, so that the lid is deformed (swells) when heated such as when cooking rice, and there is a gap between the shoulder member 36 and the shoulder member 36. The appearance defect which becomes large can be prevented.

更に、上記の不具合が解消されるため、密閉空間４３をより大きくすることができるとともに、密閉空間を大きくすることで、断熱効果を得られ省エネ性能が向上する。そして、密閉空間５３に断熱部材を加えることで更に省エネ性能を向上させることができる。 Furthermore, since the above problems are eliminated, the sealed space 43 can be made larger, and by increasing the sealed space, a heat insulation effect can be obtained and energy saving performance is improved. Further, by adding a heat insulating member to the sealed space 53, the energy saving performance can be further improved.

本願発明は、上記実施例の構成に限定されるものではなく、発明の要旨を逸脱しない範囲において適宜設計変更可能であり、例えば上記技術は、炊飯器以外の蓋体にも適用可能である。   The present invention is not limited to the configuration of the above-described embodiment, and can be appropriately changed in design without departing from the gist of the invention. For example, the above technique can be applied to a lid other than the rice cooker.

Ｓ…炊飯器 ２０…炊飯器本体
２１…内鍋 ２２…内ケース
２３…外ケース ２４…底部材
２５…底部コイル ２６…コーナーコイル
２７…センタセンサ ２８…表示パネル
２９…冷却フィン ３０…冷却ファン
３１…取手 ３２…ヒンジ部材
３３…ヒンジピン ３４…ばね
３５…蓋ロック部材 ３６…肩部材
３７…肩ヒータ ３８…シールパッキン
４０…蓋体 ４１…上カバー
４２…下カバー ４３…密閉空間
４４…断熱材 ４５…熱反射部材
４６…調圧部材 ４６ａ…蒸気通路
４６ｂ…蒸気弁 ４６ｃ…蒸気口
４７…内蓋 ５０…嵌合溝
５０ａ…上壁 ５０ｂ…左右側壁
５０ｃ…奥側壁 ５０ｄ…底壁
５０ｅ…側部開口 ５１…係止溝
５２…係止片 ５５…連通孔
５６…内部圧力調整部材 ５７…凹所
５８…粘着層 ５９…保護部材
６０…リブ ６１…蓋飾りパーツ
６１ａ…中央開口 ６２…凹部
６３…連通孔 ６５…内部圧力調整部材
６６…穴 S ... Rice cooker 20 ... Rice cooker body 21 ... Inner pan 22 ... Inner case 23 ... Outer case 24 ... Bottom member 25 ... Bottom coil 26 ... Corner coil 27 ... Center sensor 28 ... Display panel 29 ... Cooling fin 30 ... Cooling fan 31 ... handle 32 ... hinge member 33 ... hinge pin 34 ... spring 35 ... lid lock member 36 ... shoulder member 37 ... shoulder heater 38 ... seal packing 40 ... lid body 41 ... upper cover 42 ... lower cover 43 ... sealed space 44 ... heat insulating material 45 ... heat reflecting member 46 ... pressure regulating member 46a ... steam passage 46b ... steam valve 46c ... steam port 47 ... inner lid 50 ... fitting groove 50a ... upper wall 50b ... left and right side walls 50c ... back side wall 50d ... bottom wall 50e ... side part Opening 51 ... Locking groove 52 ... Locking piece 55 ... Communication hole 56 ... Internal pressure adjusting member 57 ... Recess 58 ... Adhesive layer 59 ... Protection member 60 ... Rib 61 ... Lid Ri parts 61a ... center opening 62 ... recessed portion 63 ... communication hole 65 ... inner pressure adjusting member 66 ... hole

Claims (2)

内部に内鍋がセットされる炊飯器本体と、前記炊飯器本体に着脱自在な蓋体とを有する炊飯器であって、
前記蓋体は、上カバーと下カバーが接合し、両カバーの間に密閉空間を有し、
前記蓋体は、１側方が開口し、前記炊飯器本体に設けられるヒンジ部材が着脱可能な嵌合溝を有し、
前記嵌合溝内には、前記密閉空間の内外を連通する連通孔を有し、
前記連通孔には、内部圧力調整部材を設け、
前記連通孔の周りに凹所を設け、
前記内部圧力調整部材を、前記凹所に前記密閉空間側から前記連通孔を塞ぐように設けることを特徴とする炊飯器。 A rice cooker having a rice cooker body in which an inner pot is set, and a lid detachable from the rice cooker body,
The lid body has an upper cover and a lower cover joined, and has a sealed space between both covers.
The lid body has a fitting groove that is open on one side and to which a hinge member provided in the rice cooker body is detachable,
In the fitting groove, there is a communication hole that communicates the inside and outside of the sealed space,
The communication hole is provided with an internal pressure adjusting member ,
Providing a recess around the communication hole;
Rice cooker the inner pressure adjusting member, characterized Rukoto provided from the sealed space side in the recess so as to close the communication hole. 内部に内鍋がセットされる炊飯器本体と、前記炊飯器本体に着脱自在な蓋体とを有する炊飯器であって、
前記蓋体は、上カバーと下カバーが接合し、両カバーの間に密閉空間を有し、
前記蓋体は、１側方が開口し、前記炊飯器本体に設けられるヒンジ部材が着脱可能な嵌合溝を有し、
前記嵌合溝内には、前記密閉空間の内外を連通する連通孔を有し、
前記連通孔には、内部圧力調整部材を設け、
前記連通孔の周りにリブを設け、
前記内部圧力調整部材を、前記リブで囲み前記密閉空間側から前記連通孔を塞ぐように設けることを特徴とする炊飯器。 A rice cooker having a rice cooker body in which an inner pot is set, and a lid detachable from the rice cooker body,
The lid body has an upper cover and a lower cover joined, and has a sealed space between both covers.
The lid body has a fitting groove that is open on one side and to which a hinge member provided in the rice cooker body is detachable,
In the fitting groove, there is a communication hole that communicates the inside and outside of the sealed space,
The communication hole is provided with an internal pressure adjusting member,
A rib is provided around the communication hole,
A rice cooker characterized in that the internal pressure adjusting member is provided so as to be surrounded by the ribs and to close the communication hole from the sealed space side .
JP2009034795A 2009-02-18 2009-02-18 rice cooker Active JP5359346B2 (en)

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JPS5727380Y2 (en) * 1977-05-20 1982-06-15
JPH03112512A (en) * 1989-09-28 1991-05-14 Tiger Vacuum Bottle Co Ltd Electric rice boiler
JP2001002108A (en) * 1999-06-24 2001-01-09 Zojirushi Corp Suction and exhaust structure for sealed-up container
JP3496632B2 (en) * 2000-09-05 2004-02-16 タイガー魔法瓶株式会社 Electric rice cooker
JP2005080682A (en) * 2003-09-04 2005-03-31 Matsushita Electric Ind Co Ltd Rice cooker
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