JP2011110340A - Inner tray for rice cooker, and rice cooker provided with the inner tray - Google Patents

Inner tray for rice cooker, and rice cooker provided with the inner tray Download PDF

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Publication number
JP2011110340A
JP2011110340A JP2009271723A JP2009271723A JP2011110340A JP 2011110340 A JP2011110340 A JP 2011110340A JP 2009271723 A JP2009271723 A JP 2009271723A JP 2009271723 A JP2009271723 A JP 2009271723A JP 2011110340 A JP2011110340 A JP 2011110340A
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rice cooker
inner pot
pot
rice
thick
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JP2009271723A
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Inventor
Takanobu Kamioka
孝暢 上岡
Eiji Kogure
栄治 小暮
Toshihiro Saito
利弘 齋藤
Tomoya Ninagawa
智也 蜷川
Ayato Otake
彩斗 大竹
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Priority to JP2009271723A priority Critical patent/JP2011110340A/en
Publication of JP2011110340A publication Critical patent/JP2011110340A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inner tray for rice cooker constituted by aggregating power particles of carbon, which has high strength in the vicinity of a flange portion, and a rice cooker provided with the inner tray. <P>SOLUTION: The inner tray 10 includes a side part 11 and a flange part 12 provided on the outer circumference of the upper end of the side part 11. A thickened portion T is provided at an upper part of the inner tray by forming the side part 11 so that the inside diameter A at its upper part is smaller than the inside diameter B at its lower part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、カーボンの粉粒物を凝結してなる炊飯器の内釜及びこの内釜を備えた炊飯器に関する。   The present invention relates to an inner pot of a rice cooker obtained by condensing carbon powder and a rice cooker provided with the inner pot.

従来、炊飯器の内釜をカーボン素材により形成し、カーボンの性質に由来する遠赤外線放射機能などにより米をよりおいしく炊くことができるようにしたものがある。
また、「上端部外周にフランジ部を有し、側面部、側面傾斜部、コーナ部及び底面部からなるほぼ有底円筒状の炊飯器の内釜であって、前記コーナ部の外壁面を側面傾斜部に続く円弧状の曲面部と、該曲面部から前記底面部に続く傾斜面部とによって形成し、該コーナ部の内壁面を連続した円弧状の曲面部によって形成」したものが提案されている（例えば、特許文献１参照）。 Conventionally, there is a rice cooker whose inner pot is made of a carbon material so that rice can be cooked more deliciously by a far infrared radiation function derived from the properties of carbon.
Further, “an inner pot of a substantially bottomed rice cooker having a flange portion on the outer periphery of the upper end portion and comprising a side surface portion, a side surface inclined portion, a corner portion, and a bottom surface portion, the outer wall surface of the corner portion being a side surface An arcuate curved surface portion that follows the inclined portion and an inclined surface portion that continues from the curved surface portion to the bottom surface portion, and the inner wall surface of the corner portion is formed by a continuous arcuate curved surface portion is proposed. (For example, refer to Patent Document 1).

特開２００９−１１７１８号公報（第３頁、第４頁、図２）JP 2009-11718 A (page 3, page 4, FIG. 2)

上記特許文献１に記載の技術によれば、鋳造釜や陶器釜などにおいて、落下の際に応力が集中する部分の肉厚を厚くすることにより、内釜の底面近傍の強度を高めている。   According to the technique described in Patent Document 1, the strength in the vicinity of the bottom surface of the inner pot is increased by increasing the thickness of a portion where stress is concentrated when dropped in a cast pot or a pot.

ここで、一般に炊飯器の内釜には、上面開口部の上部外周端にフランジが形成されているが、このフランジは内釜の側面から突出しているため、例えば米研ぎをしたり持ち運んだりしている際に、シンクや家具などにぶつかりやすい。また、ぶつかったときにはこのフランジに力が集中しやすい。
このため、特にカーボン素材により形成した内釜においては、フランジ部近傍の強度を高めることが望まれていた。 Here, generally, the inner pot of the rice cooker has a flange formed at the upper outer peripheral end of the upper surface opening. However, since this flange protrudes from the side surface of the inner pot, for example, rice sharpening or carrying is carried out. When hitting, it is easy to hit sinks and furniture. Moreover, when it collides, force tends to concentrate on this flange.
For this reason, especially in the inner hook formed of a carbon material, it has been desired to increase the strength in the vicinity of the flange portion.

本発明は、上記のような課題を解決するためになされたものであり、カーボンの粉粒物を凝結してなる炊飯器の内釜であって、フランジ部近傍の強度の高い炊飯器の内釜、及びこの内釜を備えた炊飯器を提供するものである。   The present invention has been made in order to solve the above-described problems, and is an inner pot of a rice cooker obtained by condensing carbon powder, and the inner portion of the rice cooker having high strength near the flange portion. A kettle and a rice cooker equipped with the inner kettle are provided.

本発明に係る炊飯器の内釜は、ほぼ有底円筒形状を有し、カーボンの粉粒物を凝結してなる炊飯器の内釜であって、側面部と、側面部の上端部外周に設けられたフランジ部と、を備え、前記側面部の上部の内径が前記側面部の下部の内径よりも小さくなるように形成して、前記内釜の上部に肉厚部を設けたものである。   The inner pot of the rice cooker according to the present invention has a substantially bottomed cylindrical shape, and is an inner pot of a rice cooker formed by agglomerating carbon powder, on the outer periphery of the side portion and the upper end portion of the side portion. Provided with a flange portion, and formed such that the inner diameter of the upper portion of the side surface portion is smaller than the inner diameter of the lower portion of the side surface portion, and a thick portion is provided on the upper portion of the inner hook. .

本発明に係る炊飯器の内釜は、側面部の上部の内径が側面部の下部の内径よりも小さくなるように形成して、内釜の上部に肉厚部を設けた。このため、炊飯器の内釜の重量の増加を極力抑えつつ、フランジ部近傍の強度を高めることができる。   The inner pot of the rice cooker according to the present invention was formed so that the inner diameter of the upper part of the side part was smaller than the inner diameter of the lower part of the side part, and a thick part was provided on the upper part of the inner pot. For this reason, the intensity | strength near a flange part can be raised, suppressing the increase in the weight of the inner pot of a rice cooker as much as possible.

実施の形態１に係る内釜の断面模式図である。FIG. 3 is a schematic cross-sectional view of the inner hook according to the first embodiment. 実施の形態１に係る内釜を備えた炊飯器の斜視図である。It is a perspective view of the rice cooker provided with the inner pot which concerns on Embodiment 1. FIG. 実施の形態１に係る内釜を備えた炊飯器の縦断面模式図である。It is a longitudinal cross-sectional schematic diagram of the rice cooker provided with the inner pot which concerns on Embodiment 1. FIG. 実施の形態１に係る内釜を備えた炊飯器の縦断面模式図である。It is a longitudinal cross-sectional schematic diagram of the rice cooker provided with the inner pot which concerns on Embodiment 1. FIG. 実施の形態２に係る内釜の断面模式図である。6 is a schematic cross-sectional view of an inner hook according to Embodiment 2. FIG. 実施の形態３に係る内釜の要部断面模式図である。FIG. 6 is a schematic cross-sectional view of a relevant part of an inner hook according to a third embodiment. 実施の形態４に係る内釜の要部断面模式図である。FIG. 6 is a schematic cross-sectional view of a relevant part of an inner hook according to a fourth embodiment. 実施の形態４に係る内釜とパッキンとを中心に示す要部断面模式図である。It is a principal part cross-section schematic diagram centering on the inner hook and packing which concern on Embodiment 4. FIG.

実施の形態１．
図１は、本発明の実施の形態１に係る炊飯器の内釜１０の縦断面模式図である。また、図２は実施の形態１に係る炊飯器１００の蓋体２を開けた状態を示す斜視図、図３は同じく炊飯器１００の蓋体２を開けた状態を示す縦断面模式図である。なお、内釜１０は左右対称の構成であるので、図１及びこれ以降で説明する図において、左右片側にのみ符号を付して説明する。 Embodiment 1 FIG.
FIG. 1 is a schematic vertical cross-sectional view of an inner pot 10 of a rice cooker according to Embodiment 1 of the present invention. 2 is a perspective view showing a state in which the lid 2 of the rice cooker 100 according to Embodiment 1 is opened, and FIG. 3 is a schematic longitudinal sectional view showing a state in which the lid 2 of the rice cooker 100 is also opened. . In addition, since the inner hook 10 is a right-and-left symmetrical structure, in FIG.

［炊飯器の構成］
図２、図３において、炊飯器１００は、上面が開口された炊飯器本体１と、炊飯器本体１の上面開口部を開閉する蓋体２と、炊飯器本体１内に着脱自在に収納された内釜１０を備える。 [Composition of rice cooker]
2 and 3, the rice cooker 100 is detachably housed in the rice cooker body 1 having an upper surface opened, a lid 2 that opens and closes the upper surface opening of the rice cooker body 1, and the rice cooker body 1. The inner pot 10 is provided.

（炊飯器本体）
炊飯器本体１は、上面が開口されて外周及び底部を覆う本体ケース２１を有する。本体ケース２１内には、上部に設置された内釜支持ケース２２と、加熱手段である誘導加熱コイル７に設置されたほぼ深皿状のコイル台２３と、内釜支持ケース２２とコイル台２３との間に設けられた周壁２４とによって形成された内釜収容部が設けられている。
蓋体２の内側には係止片５が、本体ケース２１の上面側には係止部６が設けられており、蓋体２を閉じたときに係止片５を係止部６に係止することにより、蓋体２と本体ケース２１とが結合される。
誘導加熱コイル７は、内釜１０を加熱する加熱手段であり、本体ケース２１内の内釜収納部の下面及びコーナ部外周に設けられている。
コイル台２３の底部中心部には温度センサ２５が設けられており、内釜１０を内釜収容部内に収容したときに、その底部に当接し又は近接して位置する。制御部２６は、温度センサ２５や図示しない操作部を介したユーザからの操作指示に基づいて、炊飯器１００の動作を制御する。送風機２７は、制御部２６や誘導加熱コイル７などの発熱部を冷却するものである。 (Rice cooker body)
The rice cooker main body 1 has a main body case 21 whose upper surface is opened and covers the outer periphery and the bottom. In the main body case 21, an inner pot support case 22 installed at the top, a substantially deep dish-shaped coil base 23 installed in the induction heating coil 7 serving as a heating means, an inner pot support case 22 and a coil base 23. Is provided with a peripheral wall 24 provided therebetween.
A locking piece 5 is provided inside the lid body 2, and a locking portion 6 is provided on the upper surface side of the main body case 21. When the lid body 2 is closed, the locking piece 5 is engaged with the locking portion 6. By stopping, the lid body 2 and the main body case 21 are coupled.
The induction heating coil 7 is a heating means for heating the inner hook 10, and is provided on the lower surface of the inner hook housing part and the outer periphery of the corner part in the main body case 21.
A temperature sensor 25 is provided at the center of the bottom of the coil base 23. When the inner hook 10 is housed in the inner hook housing portion, the temperature sensor 25 is in contact with or close to the bottom portion. The control part 26 controls operation | movement of the rice cooker 100 based on the operation instruction from the user via the temperature sensor 25 or the operation part which is not shown in figure. The blower 27 cools heat generating parts such as the control part 26 and the induction heating coil 7.

（蓋体）
ヒンジ３により炊飯器本体１に開閉自在に連結された蓋体２は、下面が開口された上蓋２ａと、上蓋２ａに着脱可能に装着された内蓋２ｂとを備える。
内蓋２ｂの外周側下面には、パッキン４が装着されている。パッキン４は、蓋体２により内釜１０を気密にシールするためのシール部材であり、ゴムなどの弾性を有する素材により構成されている。蓋体２を閉めると、パッキン４の一部が内釜１０の内部上部に入り込んで内釜１０と内蓋２ｂとの隙間を埋め、内蓋２ｂと内釜１０との密閉性を確保する。 (Lid)
A lid 2 connected to the rice cooker main body 1 by a hinge 3 so as to be openable and closable includes an upper lid 2a having a lower surface opened and an inner lid 2b detachably attached to the upper lid 2a.
A packing 4 is attached to the outer peripheral side lower surface of the inner lid 2b. The packing 4 is a sealing member for hermetically sealing the inner hook 10 with the lid 2 and is made of a material having elasticity such as rubber. When the lid 2 is closed, a part of the packing 4 enters the upper part of the inner hook 10 to fill the gap between the inner hook 10 and the inner lid 2b, thereby ensuring the sealing between the inner lid 2b and the inner hook 10.

（内釜）
内釜１０は、コークスの粉粒物を主体とするカーボン原料を焼結処理して炭素９５％〜１００％の凝結体とした基材から切削加工により切り出して構成されている。本実施の形態１では、図１に示すように、内釜１０の底面の中央部が周辺部より若干厚くなるよう構成している。このようにすることで、内釜１０の中央部分の温度を外周部の温度よりも高温状態となるようにして、被加熱物の対流を十分に行うことができるようにしてある。また、調理面に相当する内釜１０の内面には、フッ素樹脂を塗装してある。
内釜１０の側面部１１の内壁面には、炊飯する米の量に応じた水位を示す水位目盛１８が印刷あるいは刻印などの方法により設けられている。なお、本実施の形態１では、最大炊飯容量が１０合であるものとして説明する。 (Inner pot)
The inner pot 10 is configured by cutting a carbon raw material mainly composed of coke powder particles into a carbon 95% to 100% aggregate from a base material by cutting. In the first embodiment, as shown in FIG. 1, the central portion of the bottom surface of the inner hook 10 is configured to be slightly thicker than the peripheral portion. By doing so, the temperature of the central portion of the inner hook 10 is set to be higher than the temperature of the outer peripheral portion, so that the convection of the heated object can be sufficiently performed. Further, the inner surface of the inner pot 10 corresponding to the cooking surface is coated with a fluororesin.
A water level scale 18 indicating a water level corresponding to the amount of rice to be cooked is provided on the inner wall surface of the side surface portion 11 of the inner pot 10 by a method such as printing or engraving. In the first embodiment, description will be made assuming that the maximum rice cooking capacity is 10 go.

内釜１０は、側面部１１を有し、内釜１０の上端部外周には屈曲部１３を介してフランジ部１２が設けられている。また、側面部１１から底面部１４へと続く円弧状のコーナ部１５を備えている。
内釜１０は、ほぼ有底円筒状に形成されているが、図１に示すように、側面部１１の上部の内径Ａが底部の内径Ｂよりも小さくなるようにして、内釜１０の上部に肉厚部Ｔを形成した点に特徴を有する。以下、詳細に説明する。 The inner hook 10 has a side surface portion 11, and a flange portion 12 is provided on the outer periphery of the upper end portion of the inner hook 10 via a bent portion 13. Further, an arcuate corner portion 15 extending from the side surface portion 11 to the bottom surface portion 14 is provided.
The inner hook 10 is formed in a substantially bottomed cylindrical shape. However, as shown in FIG. 1, the inner diameter A of the upper portion of the side surface portion 11 is made smaller than the inner diameter B of the bottom portion. This is characterized in that the thick portion T is formed. Details will be described below.

側面部１１の外壁面は、コーナ部１５の外壁面から屈曲部１３の外壁面に至るまで、ほぼ垂直に形成されている。
一方、側面部１１の内壁面は、内釜１０の高さの約２／３程度の位置まではほぼ垂直に形成されているが、内釜１０の高さの約２／３程度の位置からは内釜１０の中央方向に向かって緩やかに曲がり、屈曲部１３の内壁面へと連なっている。すなわち、内釜１０の上部の内径Ａが、底部の内径Ｂより小さくなるように形成されている。このようにすることで、肉厚部Ｔが形成されている。
肉厚部Ｔの最大の厚みＣは、例えば、側面部１１の下部（肉厚部Ｔ以外の部分）の厚みＤの１２０％〜１５０％とすることができる。 The outer wall surface of the side surface portion 11 is formed substantially vertically from the outer wall surface of the corner portion 15 to the outer wall surface of the bent portion 13.
On the other hand, the inner wall surface of the side surface portion 11 is formed almost vertically up to a position of about 2/3 of the height of the inner hook 10, but from the position of about 2/3 of the height of the inner hook 10. Is gently bent toward the center of the inner hook 10 and continues to the inner wall surface of the bent portion 13. That is, the inner diameter A of the upper part of the inner hook 10 is formed to be smaller than the inner diameter B of the bottom part. By doing in this way, the thick part T is formed.
The maximum thickness C of the thick part T can be set to 120% to 150% of the thickness D of the lower part of the side part 11 (part other than the thick part T), for example.

上記のように構成した内釜１０は、肉厚部Ｔを設けたことにより、側面部１１の上部及び屈曲部１３の厚み（断面積）が増加している。このため、当該部分の強度を増加させることができる。肉厚部Ｔを設けない場合の内釜と強度を比較する実験を行ったところ、肉厚部Ｔの厚みＣを厚みＤの１２０％で構成した場合、約２０％の強度の増加が見られた。
なお、肉厚部Ｔの厚みＣを特に限定するものではないが、厚みＣを増すほどにその強度を向上させることができる。一方で、厚みＣを増加させすぎると、内釜１０の内部を斜め上方からのぞき込むユーザの視線を肉厚部Ｔが遮ることとなってしまい、また、清掃性も低下する。このため、内釜１０の直径や高さなどのサイズを考慮し、視認性と清掃性を確保可能な範囲で肉厚部Ｔの厚みＣを設けるのが好ましい。 The inner hook 10 configured as described above has an increased thickness (cross-sectional area) of the upper portion of the side surface portion 11 and the bent portion 13 by providing the thick portion T. For this reason, the intensity | strength of the said part can be increased. When an experiment was conducted to compare the strength with the inner pot when the thick part T was not provided, when the thickness C of the thick part T was 120% of the thickness D, an increase in strength of about 20% was observed. It was.
In addition, although the thickness C of the thick part T is not specifically limited, the intensity | strength can be improved, so that the thickness C is increased. On the other hand, if the thickness C is excessively increased, the thick portion T blocks the user's line of sight looking into the inner hook 10 from obliquely above, and the cleaning property is also deteriorated. For this reason, it is preferable to provide the thickness C of the thick portion T within a range in which visibility and cleanability can be secured in consideration of the size and the like of the inner hook 10.

［炊飯器の動作］
次に、上記のように構成した内釜１０を備えた炊飯器１００の動作について説明する。
炊飯器１００で炊飯を行う前に、ユーザは、研いだ米と適量の水を内釜１０に入れ、そしてこの内釜を炊飯器本体１の炊飯器収容部に収容する。この際、例えばシンク等で水を張った状態の内釜１０を炊飯器１００のところまで持ち運ぶこととなるが、内釜１０の側面の上部に内釜１０の中央方向に張り出す肉厚部Ｔが庇の役割を果たすので、水がこぼれにくくなる。
次に、米と水を入れた内釜１０を炊飯器本体１の炊飯器収容部に収容し、内釜１０のフランジ部１２を内釜支持ケース２２上に載置してセットし、蓋体２を閉じる。これにより、蓋体２に設けた係止片５が炊飯器本体１の係止部６に係止され、ロックされる。 [Operation of rice cooker]
Next, operation | movement of the rice cooker 100 provided with the inner pot 10 comprised as mentioned above is demonstrated.
Before cooking rice with the rice cooker 100, the user puts sharpened rice and an appropriate amount of water into the inner pot 10, and accommodates the inner pot in the rice cooker accommodating portion of the rice cooker body 1. At this time, for example, the inner pot 10 in a state where water is stretched by a sink or the like is carried to the rice cooker 100, but the thick portion T projecting toward the center of the inner pot 10 on the upper side of the inner pot 10. Since it plays the role of a spear, water is less likely to spill.
Next, the inner pot 10 containing rice and water is accommodated in the rice cooker accommodating portion of the rice cooker body 1, the flange portion 12 of the inner pot 10 is placed on the inner pot support case 22 and set, and the lid Close 2 Thereby, the latching piece 5 provided in the cover body 2 is latched by the latching | locking part 6 of the rice cooker main body 1, and is locked.

次に、図示しない操作部の炊飯スイッチをＯＮすると、制御部２６に組み込まれたプログラムにしたがって、炊飯が開始される。
炊飯スイッチをＯＮするとまず予熱工程が開始され、例えば４０〜６０℃程度に加熱される。所定の時間が経過すると、炊飯工程に入る。炊飯工程では火力を上げて水を沸騰状態にし、内釜１０内の水が無くなるまで沸騰を続ける。内釜１０内の水が無くなると、それまで水の蒸発潜熱で消費されていた熱が内釜１０の温度を上昇させることに使われるようになり、内釜１０の温度が急激に上昇する。この温度上昇を温度センサ２５で捉えて炊飯工程を終了し、以後むらし工程に入る。そして、所定の時間経過すると、保温工程に移行し、炊飯が終了する。 Next, when a rice cooking switch of an operation unit (not shown) is turned on, rice cooking is started according to a program incorporated in the control unit 26.
When the rice cooking switch is turned on, a preheating process is first started, and is heated to, for example, about 40 to 60 ° C. When a predetermined time elapses, the rice cooking process is started. In the rice cooking process, the heating power is increased to bring the water to a boiling state, and the boiling is continued until the water in the inner pot 10 runs out. When the water in the inner pot 10 is exhausted, the heat that has been consumed by the latent heat of vaporization of water until then is used to increase the temperature of the inner pot 10, and the temperature of the inner pot 10 rapidly increases. This temperature rise is caught by the temperature sensor 25, the rice cooking process is terminated, and then the unevenness process is started. And if predetermined time passes, it will transfer to a heat retention process and rice cooking will be complete | finished.

この炊飯工程においては、内釜１０内で米と水に対流を生じさせることで、炊きムラを少なくしておいしいご飯を炊くことができるようになるが、一般に、炊飯量が多い場合には、少ない場合と比較して対流が起こりにくい。しかし、本実施の形態１に係る内釜１０は、内釜１０の中央方向に向けて張り出す肉厚部Ｔを設けたので、図３に示すように肉厚部Ｔが対流を促進し、炊きムラを改善してよりおいしいご飯を炊くことができる。   In this rice cooking process, by causing convection to rice and water in the inner pot 10, it becomes possible to cook delicious rice with less cooking unevenness, but in general, when the amount of rice cooking is large, Convection is less likely to occur than when there are few. However, since the inner hook 10 according to the first embodiment is provided with the thick portion T that projects toward the center of the inner hook 10, the thick portion T promotes convection as shown in FIG. You can improve the cooking unevenness and cook more delicious rice.

また、炊飯工程及び保温工程においては、内釜１０に肉厚部Ｔを設けたため、内釜１０の側面部１１から熱が逃げるのを抑制することができる。このため、炊飯工程や保温工程における加熱効率が向上し、省エネルギーに資する。   Moreover, in the rice cooking process and the heat insulation process, since the thick part T was provided in the inner pot 10, it can suppress that heat escapes from the side part 11 of the inner pot 10. For this reason, the heating efficiency in a rice cooking process or a heat retention process improves, and it contributes to energy saving.

また、炊飯後の米をしゃもじを使って茶碗などによそった後には、しゃもじに米が付着する場合がある。このような場合にも、図４に示すように、内釜１０の肉厚部ＴでしゃもじＳに付着した米Ｒをこそげることができる。肉厚部Ｔは内釜１０の中央方向に向かって張り出していることから、こそげた米Ｒは容易に内釜１０の内部に落下し、内釜１０の側面部１１の内壁面に米Ｒが付着して乾燥するのを抑制できる。   In addition, rice may be attached to rice scoop after the rice cooked with rice scoop using a rice scoop. Even in such a case, as shown in FIG. 4, the rice R adhered to the rice paddle S at the thick portion T of the inner pot 10 can be scraped. Since the thick portion T protrudes toward the center of the inner pot 10, the scraped rice R easily falls into the inner pot 10, and the rice R is placed on the inner wall surface of the side portion 11 of the inner pot 10. It can suppress adhering and drying.

以上のように、本実施の形態１によれば、内釜１０の側面部１１の上部の内径Ａが側面部１１の下部の内径Ｂよりも小さくなるように形成して、側面部１１の上部に肉厚部Ｔを設けた。すなわち、内釜１０の側面部１１の上部の内壁面を内釜１０の中央方向に張り出させることにより、肉厚部Ｔを設けた。このようにすることで、フランジ部１２と側面部１１を接続する屈曲部１３、及び側面部１１の上部の断面積を増加させることができ、フランジ部１２近傍の強度を向上させることができる。また、肉厚部Ｔは、内釜１０の上部にのみ設けたので、強度の向上に伴う内釜１０の重量の増加を極力抑えることができる。   As described above, according to the first embodiment, the inner diameter A of the upper portion of the side surface portion 11 of the inner hook 10 is formed so as to be smaller than the inner diameter B of the lower portion of the side surface portion 11. A thick portion T was provided. That is, the thick portion T was provided by projecting the inner wall surface of the upper portion of the side surface portion 11 of the inner hook 10 toward the center of the inner hook 10. By doing in this way, the cross-sectional area of the bending part 13 which connects the flange part 12 and the side part 11 and the upper part of the side part 11 can be increased, and the intensity | strength of the flange part 12 vicinity can be improved. Moreover, since the thick part T was provided only in the upper part of the inner hook 10, the increase in the weight of the inner hook 10 accompanying strength improvement can be suppressed as much as possible.

また、側面部１１の内壁面を内釜１０の中央方向に張り出させることによって肉厚部Ｔを設けているので、内釜１０の側面部１１の外壁面は肉厚部Ｔを設けていない内釜と同形である。したがって、既存の炊飯器に対して内釜１０を用いることもでき、ユーザの内釜の買い換え需要に柔軟に対応することができる。   Further, since the thick wall portion T is provided by projecting the inner wall surface of the side surface portion 11 toward the center of the inner hook 10, the outer wall surface of the side surface portion 11 of the inner hook 10 is not provided with the thick wall portion T. It is the same shape as the inner pot. Therefore, the inner pot 10 can also be used with respect to the existing rice cooker, and it can respond flexibly to the user's replacement demand for the inner pot.

実施の形態２．
図５は、本発明の実施の形態２に係る炊飯器の内釜１０の断面図である。なお、実施の形態１と同一又は対応する部分には同じ符号を付す。本実施の形態２では、実施の形態１との相違点を中心に説明する。 Embodiment 2. FIG.
FIG. 5 is a cross-sectional view of the inner pot 10 of the rice cooker according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or respond | corresponds. In the second embodiment, the difference from the first embodiment will be mainly described.

実施の形態２に係る内釜１０は、その最大炊飯容量が５．５合であり、これに対応した水位目盛１９が設けられている。
水位目盛１９は、内釜１０の肉厚部Ｔよりも下側に位置するようにして設けられている。 The inner pot 10 according to the second embodiment has a maximum rice cooking capacity of 5.5 and a water level scale 19 corresponding to this is provided.
The water level scale 19 is provided so as to be located below the thick portion T of the inner pot 10.

このように、本実施の形態２においても、前述の実施の形態１と同様に、内釜１０の重量の増加を極力抑えつつ、フランジ部１２と側面部１１を接続する屈曲部１３、及び側面部１１の上部の断面積を増加させることができ、当該部分の強度を向上させることができる。   Thus, also in the second embodiment, as in the first embodiment described above, the bent portion 13 that connects the flange portion 12 and the side surface portion 11 and the side surface while suppressing an increase in the weight of the inner hook 10 as much as possible. The cross-sectional area of the upper part of the part 11 can be increased, and the strength of the part can be improved.

さらに、肉厚部Ｔの下側、すなわち、側面部１１の平坦な面に水位目盛１９を設けることで、内釜１０に水位目盛１９を印刷あるいは刻印して設ける際の作業を容易に行うことができる。
また、肉厚部Ｔの下側に水位目盛１９を設けることで、水位調節をする際の視認性が向上する。すなわち、内釜１０に入れる水を調整する際には、ユーザは通常、斜め上方から内釜１０の内部をのぞき込むわけだが、肉厚部Ｔが水位目盛１９を見るユーザの視線を遮るのを抑制することができる。 Further, by providing the water level scale 19 on the lower side of the thick part T, that is, on the flat surface of the side surface part 11, the work when the water level scale 19 is printed or stamped on the inner pot 10 is easily performed. Can do.
Moreover, the visibility at the time of adjusting a water level improves by providing the water level scale 19 under the thick part T. FIG. That is, when adjusting the water to be put into the inner pot 10, the user usually looks into the inner pot 10 obliquely from above, but the thick portion T is prevented from blocking the user's line of sight of the water level scale 19. can do.

実施の形態３．
図６は、実施の形態３に係る内釜１０の要部断面模式図である。図６では、フランジ部１２、屈曲部１３、及び側面部１１の上部を中心に示している。なお、実施の形態１と同一又は対応する部分には同じ符号を付す。
本実施の形態３では、肉厚部Ｔの詳細な構成例を説明する。 Embodiment 3 FIG.
FIG. 6 is a schematic cross-sectional view of a main part of the inner hook 10 according to the third embodiment. In FIG. 6, the upper part of the flange portion 12, the bent portion 13, and the side surface portion 11 is illustrated. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or respond | corresponds.
In the third embodiment, a detailed configuration example of the thick portion T will be described.

側面部１１は、その外壁面である外側側面部１１１と、内壁面である内側側面部１１２とを備える。
フランジ部１２は、その外壁面である外側フランジ部１２１と、内壁面である内側フランジ部１２２とを備える。
屈曲部１３は、その外壁面である外側屈曲部１３１と、内壁面である内側屈曲部１３２とを備える。
さらに、内側側面部１１２は、図示しないコーナ部１５の内壁面に連なる下部側面部１１２ａと、内側屈曲部１３２へと連なる上部側面部１１２ｂと、上部側面部１１２ｂと下部側面部１１２ａとを接続する屈曲部１１２ｃとを備える。 The side surface portion 11 includes an outer side surface portion 111 that is an outer wall surface thereof and an inner side surface portion 112 that is an inner wall surface.
The flange portion 12 includes an outer flange portion 121 that is an outer wall surface thereof, and an inner flange portion 122 that is an inner wall surface.
The bent portion 13 includes an outer bent portion 131 that is an outer wall surface and an inner bent portion 132 that is an inner wall surface.
Furthermore, the inner side surface portion 112 connects the lower side surface portion 112a continuous with the inner wall surface of the corner portion 15 (not shown), the upper side surface portion 112b connected to the inner bent portion 132, the upper side surface portion 112b, and the lower side surface portion 112a. And a bent portion 112c.

上部側面部１１２ｂは、下部側面部１１２ａよりも内釜１０の内部中央方向（図面において右側）に位置している。屈曲部１１２ｃは、上部側面部１１２ｂと下部側面部１１２ａとをなめらかに接続するカーブを描いて形成されている。また、内側屈曲部１３２は、内側フランジ部１２２と上部側面部１１２ｂとをなめらかに接続するカーブを描いて形成されている。   The upper side surface portion 112b is located in the inner central direction (right side in the drawing) of the inner hook 10 than the lower side surface portion 112a. The bent portion 112c is formed in a curve that smoothly connects the upper side surface portion 112b and the lower side surface portion 112a. Further, the inner bent portion 132 is formed in a curve that smoothly connects the inner flange portion 122 and the upper side surface portion 112b.

以上のような構成により、本実施の形態３では、屈曲部１３と側面部１１の上部（上部側面部１１２ｂと屈曲部１１２ｃに相当する位置）において、内釜１０の断面積が増加しており、当該部分に肉厚部Ｔが形成されている。
このように、本実施の形態３においても前述の実施の形態１と同様に、内釜１０の重量の増加を極力抑えつつ、フランジ部１２と側面部１１を接続する屈曲部１３、及び側面部１１の上部の断面積を増加させることができ、当該部分の強度を向上させることができる。 With the configuration as described above, in the third embodiment, the cross-sectional area of the inner hook 10 is increased at the upper part of the bent part 13 and the side part 11 (position corresponding to the upper side part 112b and the bent part 112c). The thick part T is formed in the said part.
As described above, also in the third embodiment, as in the first embodiment, the bent portion 13 that connects the flange portion 12 and the side surface portion 11 and the side surface portion while suppressing an increase in the weight of the inner hook 10 as much as possible. 11 can be increased in cross-sectional area, and the strength of the portion can be improved.

実施の形態４．
図７は、実施の形態４に係る内釜１０の要部断面模式図である。図７では、フランジ部１２、屈曲部１３、及び側面部１１の上部を中心に示している。なお、実施の形態１と同一又は対応する部分には同じ符号を付す。
本実施の形態４では、肉厚部Ｔの詳細な構成例について、前述の実施の形態３との相違点を中心に説明する。 Embodiment 4 FIG.
FIG. 7 is a schematic cross-sectional view of an essential part of the inner hook 10 according to the fourth embodiment. In FIG. 7, the upper portion of the flange portion 12, the bent portion 13, and the side surface portion 11 is shown as a center. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or respond | corresponds.
In the fourth embodiment, a detailed configuration example of the thick portion T will be described focusing on differences from the third embodiment.

本実施の形態４では、側面部１１とフランジ部１２は前述の実施の形態３と同様の構成であるが、屈曲部１３の構成が異なる。
屈曲部１３において、内側屈曲部１３２は、断面が直線状の傾斜面である傾斜部１３２ａと、この傾斜部１３２ａと上部側面部１１２ｂとを接続する下部屈曲部１３２ｂと、傾斜部１３２ａと内側フランジ部１２２とを接続する上部屈曲部１３２ｃとを備える。下部屈曲部１３２ｂ及び上部屈曲部１３２ｃは、それぞれが接続する面と面とがなめらかに接続されるようなカーブを描いて形成されている。本実施の形態４では、傾斜部１３２ａを設けることにより、屈曲部１３にＣ面切削を施しているといえる。 In the fourth embodiment, the side surface portion 11 and the flange portion 12 have the same configuration as that of the above-described third embodiment, but the configuration of the bent portion 13 is different.
In the bent portion 13, the inner bent portion 132 includes an inclined portion 132a having a linearly inclined cross section, a lower bent portion 132b that connects the inclined portion 132a and the upper side surface portion 112b, an inclined portion 132a, and an inner flange. And an upper bent portion 132 c that connects the portion 122. The lower bent portion 132b and the upper bent portion 132c are formed so as to draw curves so that the surfaces to be connected to each other are smoothly connected. In the fourth embodiment, it can be said that the chamfering is performed on the bent portion 13 by providing the inclined portion 132a.

以上のような構成により、本実施の形態４では、屈曲部１３と側面部１１の上部（上部側面部１１２ｂと屈曲部１１２ｃに相当する位置）において、内釜１０の断面積が増加しており、当該部分に肉厚部Ｔが形成されている。
このように、本実施の形態４においても、前述の実施の形態１と同様に、内釜１０の重量の増加を極力抑えつつ、フランジ部１２と側面部１１を接続する屈曲部１３、及び側面部１１の上部の断面積を増加させることができ、当該部分の強度を向上させることができる。 With the configuration as described above, in the fourth embodiment, the cross-sectional area of the inner hook 10 is increased at the upper part of the bent part 13 and the side part 11 (the position corresponding to the upper side part 112b and the bent part 112c). The thick part T is formed in the said part.
Thus, also in the fourth embodiment, as in the first embodiment described above, the bent portion 13 that connects the flange portion 12 and the side surface portion 11 and the side surface while suppressing an increase in the weight of the inner hook 10 as much as possible. The cross-sectional area of the upper part of the part 11 can be increased, and the strength of the part can be improved.

次に、内側屈曲部１３２に設けた傾斜部１３２ａの作用を説明する。図８は、実施の形態４に係る内釜１０、内蓋２ｂ、パッキン４を中心に示す要部断面模式図である。
図８に示すように、パッキン４は、下部が内側に向かって緩やかな円弧状に形成された内釜シール部４１を備えている。この内釜シール部４１の外径は、内釜１０の上部の内径より若干小径に形成されている。また、内釜シール部４１の基部から外周側に分岐し、斜め下方に向かって延設されたフランジ圧接部４２が設けられている。 Next, the operation of the inclined portion 132a provided in the inner bent portion 132 will be described. FIG. 8 is a schematic cross-sectional view of the main part showing the inner hook 10, the inner lid 2 b, and the packing 4 according to the fourth embodiment.
As shown in FIG. 8, the packing 4 includes an inner hook seal portion 41 having a lower portion formed in a gentle arc shape toward the inside. The outer diameter of the inner hook seal portion 41 is formed slightly smaller than the inner diameter of the upper part of the inner hook 10. Further, a flange press-contact portion 42 that branches from the base portion of the inner hook seal portion 41 to the outer peripheral side and extends obliquely downward is provided.

このような構成において、内釜１０を炊飯器本体１に収容して蓋体２を閉じると、内釜１０の上部の内径よりも若干小径に形成された内釜シール部４１が、屈曲部１３の傾斜部１３２ａに接しつつ内釜１０の内壁に密着し、内釜１０と内蓋２ｂとを密閉する。屈曲部１３に傾斜部１３２ａを設けたことにより、傾斜部１３２ａに接した内釜シール部４１の先端がスムーズに内釜１０の内側へと導かれ、内釜シール部４１がフランジ部１２に乗ることなく蓋体２を閉じることができる。   In such a configuration, when the inner pot 10 is accommodated in the rice cooker body 1 and the lid body 2 is closed, the inner pot seal portion 41 formed to have a slightly smaller diameter than the inner diameter of the upper portion of the inner pot 10 becomes the bent portion 13. The inner hook 10 and the inner lid 2b are hermetically sealed by being in close contact with the inner wall of the inner hook 10 while being in contact with the inclined portion 132a. By providing the inclined portion 132 a in the bent portion 13, the tip of the inner hook seal portion 41 in contact with the inclined portion 132 a is smoothly guided to the inner side of the inner hook 10, and the inner hook seal portion 41 gets on the flange portion 12. The lid 2 can be closed without any problem.

１ 炊飯器本体、２ 蓋体、２ａ 上蓋、２ｂ 内蓋、３ ヒンジ、４ パッキン、５ 係止片、６ 係止部、７ 誘導加熱コイル、１０ 内釜、１１ 側面部、１２ フランジ部、１３ 屈曲部、１４ 底面部、１５ コーナ部、１８ 水位目盛、１９ 水位目盛、２１ 本体ケース、２２ 内釜支持ケース、２３ コイル台、２４ 周壁、２５ 温度センサ、２６ 制御部、２７ 送風機、４１ 内釜シール部、４２ フランジ圧接部、１００ 炊飯器、１１１ 外側側面部、１１２ 内側側面部、１１２ａ 下部側面部、１１２ｂ 上部側面部、１１２ｃ 屈曲部、１２１ 外側フランジ部、１２２ 内側フランジ部、１３１ 外側屈曲部、１３２ 内側屈曲部、１３２ａ 傾斜部、１３２ｂ 下部屈曲部、１３２ｃ 上部屈曲部、Ｔ 肉厚部 Ｓ しゃもじ、Ｒ 米。   DESCRIPTION OF SYMBOLS 1 Rice cooker main body, 2 lid body, 2a upper lid, 2b inner lid, 3 hinge, 4 packing, 5 latching piece, 6 latching part, 7 induction heating coil, 10 inner pot, 11 side part, 12 flange part, 13 Bending part, 14 Bottom part, 15 Corner part, 18 Water level scale, 19 Water level scale, 21 Body case, 22 Inner hook support case, 23 Coil base, 24 Perimeter wall, 25 Temperature sensor, 26 Control part, 27 Blower, 41 Inner pot Seal part, 42 Flange pressure contact part, 100 Rice cooker, 111 Outer side part, 112 Inner side part, 112a Lower side part, 112b Upper side part, 112c Bent part, 121 Outer flange part, 122 Inner flange part, 131 Outer bent part 132, inner bent portion, 132a inclined portion, 132b lower bent portion, 132c upper bent portion, T thick portion S paddle, R .

Claims (5)

ほぼ有底円筒形状を有し、カーボンの粉粒物を凝結してなる炊飯器の内釜であって、
側面部と、側面部の上端部外周に設けられたフランジ部と、を備え、
前記側面部の上部の内径が前記側面部の下部の内径よりも小さくなるように形成して、前記内釜の上部に肉厚部を設けた
ことを特徴とする炊飯器の内釜。 An inner pot of a rice cooker having a substantially bottomed cylindrical shape and agglomerated carbon powder,
A side portion, and a flange portion provided on the outer periphery of the upper end portion of the side portion,
An inner pot for a rice cooker, wherein an inner diameter of the upper part of the side part is formed to be smaller than an inner diameter of a lower part of the side part, and a thick part is provided on the upper part of the inner pot. 前記側面部の内周面であって前記肉厚部よりも下側の位置に水位目盛を備えた
ことを特徴とする請求項１記載の炊飯器の内釜。 The inner pot of the rice cooker according to claim 1, wherein a water level scale is provided at a position on the inner peripheral surface of the side portion and below the thick portion. 前記側面部の内壁面に、
下部側面部と、
前記下部側面部よりも内釜の中央方向に位置する上部側面部と、
前記下部側面部と上部側面部とを接続する側面屈曲部と、を形成することにより、
前記肉厚部を設けた
ことを特徴とする請求項１又は請求項２記載の炊飯器の内釜。 On the inner wall surface of the side part,
A lower side,
An upper side part located in the center direction of the inner hook than the lower side part;
By forming a side bent portion that connects the lower side portion and the upper side portion,
The inner pot of the rice cooker according to claim 1 or 2, wherein the thick portion is provided. 前記側面部と前記フランジ部との接続部分の内周側に、断面が直線状の傾斜面部を形成した
ことを特徴とする請求項１〜請求項３のいずれか記載の炊飯器の内釜。 The inner pot of the rice cooker according to any one of claims 1 to 3, wherein an inclined surface portion having a linear cross section is formed on an inner peripheral side of a connection portion between the side surface portion and the flange portion. 被調理物を収容可能な内釜と、
上面が開口されて前記内釜が着脱自在に収容される炊飯器本体と、
前記炊飯器本体の上面開口部を開閉可能に覆う外蓋と、
前記外蓋に着脱可能に装着され、前記内釜の上面開口部を開閉可能に覆う内蓋と、
前記内釜を加熱する加熱手段と、を備え、
前記内釜として、請求項１〜請求項４のいずれか記載の内釜を用いた
ことを特徴とする炊飯器。 An inner pot that can accommodate cooked items;
A rice cooker body whose upper surface is opened and the inner pot is detachably accommodated;
An outer lid covering the top opening of the rice cooker body so as to be openable and closable;
An inner lid that is detachably attached to the outer lid and covers the upper surface opening of the inner hook so as to be openable and closable;
Heating means for heating the inner pot,
The rice cooker using the inner pot according to any one of claims 1 to 4 as the inner pot.
JP2009271723A 2009-11-30 2009-11-30 Inner tray for rice cooker, and rice cooker provided with the inner tray Pending JP2011110340A (en)

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CN104223932A (en) * 2013-06-17 2014-12-24 日立空调·家用电器株式会社 Electric cooker
JP2016087293A (en) * 2014-11-10 2016-05-23 三菱電機株式会社 rice cooker
JP2016112214A (en) * 2014-12-15 2016-06-23 三菱電機株式会社 Inner pot and rice cooker
JP2016214635A (en) * 2015-05-21 2016-12-22 東芝ホームテクノ株式会社 rice cooker
JP7461645B2 (en) 2020-07-17 2024-04-04 株式会社日本美健 Germinated brown rice cooker

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JP2000225056A (en) * 1999-02-04 2000-08-15 Tiger Vacuum Bottle Co Ltd Electric rice cooker
JP2007244648A (en) * 2006-03-16 2007-09-27 Tiger Vacuum Bottle Co Ltd Electric rice cooker
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JPS57137417U (en) * 1981-02-25 1982-08-27
JP2000225056A (en) * 1999-02-04 2000-08-15 Tiger Vacuum Bottle Co Ltd Electric rice cooker
JPH11313762A (en) * 1999-02-24 1999-11-16 Mitsubishi Electric Corp Rice cooker
JP2007244648A (en) * 2006-03-16 2007-09-27 Tiger Vacuum Bottle Co Ltd Electric rice cooker
JP2009196890A (en) * 2009-06-08 2009-09-03 Mitsubishi Electric Corp Surface-modified carbon-coagulated body and electromagnetic induction-heating cooker or electromagnetic induction-heating rice cooker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104223932A (en) * 2013-06-17 2014-12-24 日立空调·家用电器株式会社 Electric cooker
JP2015000189A (en) * 2013-06-17 2015-01-05 日立アプライアンス株式会社 Rice cooker
JP2016087293A (en) * 2014-11-10 2016-05-23 三菱電機株式会社 rice cooker
JP2016112214A (en) * 2014-12-15 2016-06-23 三菱電機株式会社 Inner pot and rice cooker
JP2016214635A (en) * 2015-05-21 2016-12-22 東芝ホームテクノ株式会社 rice cooker
JP7461645B2 (en) 2020-07-17 2024-04-04 株式会社日本美健 Germinated brown rice cooker

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