JPS6244482B2 - - Google Patents
Info
- Publication number
- JPS6244482B2 JPS6244482B2 JP54146798A JP14679879A JPS6244482B2 JP S6244482 B2 JPS6244482 B2 JP S6244482B2 JP 54146798 A JP54146798 A JP 54146798A JP 14679879 A JP14679879 A JP 14679879A JP S6244482 B2 JPS6244482 B2 JP S6244482B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- heater
- rice
- heat
- pot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 241000209094 Oryza Species 0.000 claims description 30
- 235000007164 Oryza sativa Nutrition 0.000 claims description 30
- 235000009566 rice Nutrition 0.000 claims description 30
- 238000010411 cooking Methods 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 9
- 206010037660 Pyrexia Diseases 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cookers (AREA)
Description
【発明の詳細な説明】
本発明は器枠が断熱性を有するタイプの炊飯器
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice cooker whose frame has heat insulating properties.
従来、既存の炊飯器はその殆どがヒータを埋設
した熱盤を器枠内に具え、該器枠内に収容した釜
をその熱盤上に載置せしめてその熱盤からの熱伝
導により加熱するという構造であつたが、然しこ
れでは熱盤と接した箇所だけがよく加熱され熱盤
から遠い箇所はあまり加熱されないという事情を
有するところから均一な炊飯ができず、そこで近
年、かまど風等と称されてヒータを釜から離す様
に設置し該ヒータの発する輻射熱により釜の底部
と周側部とを要するに周囲の空気層を介して一様
に加熱する様にしたものが開発され出現しつつあ
る。而してこのものによれば、先の従来のものと
は違い均一な炊飯ができるのであるが、一方、前
記ヒータの発した輻射熱が釜だけでなく該釜を収
容した器枠にも伝わる問題があり、このため特に
このものに於いてはその器枠に断熱性をもたせ器
外への熱放散を無くす様にしなければならない。
ところが現在、そのために行なわれていること
は、器枠を外枠と内枠との二重壁により構成して
その間にグラスウール等の断熱材を充填するとい
う通常の手立てであり、周知の様にその断熱材に
よる断熱構造は性能にも限度があるため少なから
ず熱損失を生じ、又、厚みが相当になければ断熱
できないためその厚み分器枠が大形化し表面積が
増えて一層多くの熱損失を生じる欠点があつた。 Conventionally, most existing rice cookers are equipped with a heating plate with a heater embedded inside the container frame, and the pot housed in the container frame is placed on the heating plate and heated by heat conduction from the heating plate. However, with this structure, only the areas in contact with the heating plate were heated well, and the areas far from the heating plate were not heated as much, making it impossible to cook rice uniformly. A device was developed and appeared in which a heater is installed away from the pot, and the radiant heat generated by the heater uniformly heats the bottom and surrounding sides of the pot via the surrounding air layer. It's coming. According to this method, unlike the conventional method described above, rice can be cooked evenly, but on the other hand, there is a problem that the radiant heat generated by the heater is transmitted not only to the pot but also to the container frame that houses the pot. For this reason, especially in this case, the container frame must have insulation properties to eliminate heat dissipation to the outside of the container.
However, what is currently being done for this purpose is the usual method of constructing the container frame with a double wall of an outer frame and an inner frame, and filling the space with an insulating material such as glass wool. The thermal insulation structure using the thermal insulation material has a limited performance and causes considerable heat loss, and since it cannot be insulated unless it is thick enough, the thickness divider frame becomes larger and the surface area increases, resulting in even more heat loss. There was a drawback that caused
本発明は上述の如き事情に鑑みてなされたもの
であり、従つてその目的は、主としていわゆるか
まど風の加熱を行なうものにあつて、器枠の断熱
性を向上させ、大きさもまた小形化できる炊飯器
を提供するにある。 The present invention has been made in view of the above-mentioned circumstances, and its purpose is to improve the heat insulation of the container frame and to reduce its size, mainly for devices that perform so-called furnace-style heating. There is a rice cooker provided.
以下本発明の一実施例につき図面を参照して説
明するに、先ず概略的に、１は器枠、２は器枠１
内に収容した釜、３は釜２の上面の開口部を塞い
だ中蓋、４は更に中蓋３の上方を塞いだ蓋、５は
把手である。一方、６は上記器枠１の下方ベース
７内に適宜断熱して取付けた基盤で、これの上面
中央部に釜２の底面に接する炊飯完了検知スイツ
チの検知部８や同じく釜２の底面に接する保温検
知スイツチ９といつた感温器を組込んだカバー１
０を取付け、外周部には碍子１１を取付けてい
て、この碍子１１上に炊飯ヒータ１２と保温ヒー
タ１３とを載せ、以てこれら両ヒータ１２，１３
を前記器枠１の内底面から離し前記釜２の外底面
からも離すべく設置している。さて、ここで前記
器枠１につき詳細に述べると、即ちこの器枠１
は、熱伝導性に優れた材質、中でもステンレスか
ら成る外枠１４と、同じくステンレスから成る内
枠１５とを夫々前記カバー１０従つて感温器が貫
通した孔部の周縁部や碍子１１が貫通した孔部の
周縁部並びに上縁部など接合すべき各所に於いて
すべて溶接等により密に接合して成る二重壁構造
のもので、殊にその外・内両枠１４，１５間につ
いては批処を例えば10-6〔mmHg〕程度に減圧し
て真空にしている。而してこの器枠１は周側部の
ほか底部も真空となつていて、その底部に上述の
感温器貫通用の孔部が存し、該孔部を感温器は器
枠１の底部から器枠１外部に出る様に貫通してい
る。又、前記炊飯ヒータ１２及び保温ヒータ１３
は器枠１の底部上にあつてともに内枠１５から離
して設けられている。そして一方、１６は器枠１
特にその上記内枠１５の上縁部に添着したプラス
チツクなど断熱剤から成る支持枠で、これを介し
て前記釜２を前記炊飯ヒータ１２及び保温ヒータ
１３からの各離間状態に与える様にしている。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings. First, 1 is a container frame; 2 is a container frame 1;
3 is an inner lid that closes the opening on the top surface of the pot 2, 4 is a lid that further closes the upper part of the inner lid 3, and 5 is a handle. On the other hand, reference numeral 6 denotes a base installed in the lower base 7 of the container frame 1 with proper insulation, and the detection part 8 of the rice-cooking completion detection switch which is in contact with the bottom of the pot 2 is located at the center of the upper surface of this base, and the base 6 is also attached to the bottom of the pot 2. Cover 1 that incorporates a temperature sensor that comes into contact with a heat retention detection switch 9
0 is attached, and an insulator 11 is attached to the outer periphery, and a rice cooking heater 12 and a heat-retaining heater 13 are placed on this insulator 11.
are installed so as to be separated from the inner bottom surface of the container frame 1 and also from the outer bottom surface of the pot 2. Now, to describe the container frame 1 in detail, that is, this container frame 1.
The outer frame 14 is made of a material with excellent thermal conductivity, especially stainless steel, and the inner frame 15 is also made of stainless steel. It is a double-walled structure in which all parts to be joined, such as the peripheral edge and upper edge of the hole, are tightly joined by welding etc., especially between the outer and inner frames 14 and 15. The pressure is reduced to, for example, about 10 -6 [mmHg] to create a vacuum. This container frame 1 has a vacuum at the bottom as well as the circumferential side, and there is a hole at the bottom for passing through the temperature sensor. It penetrates so as to come out from the bottom of the container frame 1. Moreover, the rice cooking heater 12 and the heat retention heater 13
are located on the bottom of the container frame 1 and spaced apart from the inner frame 15. On the other hand, 16 is the container frame 1
In particular, a support frame made of a heat insulating material such as plastic attached to the upper edge of the inner frame 15 allows the pot 2 to be separated from the rice cooking heater 12 and the heat-retaining heater 13 through this support frame. .
以上の様に本実施例によれば、器枠１を外枠１
４とこれに密に接合した内枠１５との二重壁構造
により形成し、そしてその間を真空にしたのであ
るから、要するに器枠１が熱を伝える対流を生じ
させる空気を有さず、よつて従来の断熱材による
ものより更に放熱を少なく抑えることができ、断
熱性を向上させ得る即ち熱損失を少なくし得るも
のであつて、これにより一層効率の良い炊飯を行
なわしめ得るものである。又、本実施例の様に釜
２をヒータ１２，１３からの輻射熱により加熱す
るかまど風のものの場合、前述の様に器枠１も熱
せられ、殊に炊飯時には炊飯ヒータ１２が通常
700〜800〔℃〕もの高熱を発するのであるから、
上記器枠１がガラス等から成るものであれば、特
にそのヒータ１２近くで異常に熱膨脹し割れてし
まうことが考えられる。この点本実施例に於いて
は、器枠１の内枠１５も又外枠１４も夫々熱伝導
性に優れたステンレスにより構成しているため、
上述の様な熱膨脹を起こすことはなく、故に割れ
る様なこともなくして使用に充分堪え得る製品と
なすことができる。しかも本実施例に於いては、
そのステンレスという材質により、アルミの様な
板厚も必要なく薄肉なものにて真空に充分堪え得
る強度を保障し得、又、その薄さの分熱損失も一
層少なくできる。更にステンレスは通常の鋼板等
に比べて放射率が低く、従つてこのステンレスか
ら成る内枠１５はヒータ１２，１３の熱をよく反
射して釜２の加熱に寄与せしめ、他方、外枠１４
は放射による熱損失を更に少なく抑えるのに役立
つものである。 As described above, according to this embodiment, the container frame 1 is replaced by the outer frame 1.
4 and an inner frame 15 closely joined to the inner frame 15, and a vacuum is created between them.In short, the container frame 1 does not have air that causes convection to transfer heat, and is thus As a result, heat radiation can be suppressed to a lower level than with conventional heat insulating materials, and heat insulation properties can be improved, that is, heat loss can be reduced, and thereby rice can be cooked more efficiently. In addition, in the case of a furnace-like type in which the pot 2 is heated by radiant heat from the heaters 12 and 13 as in this embodiment, the pot frame 1 is also heated as described above, and the rice cooking heater 12 is normally heated especially during rice cooking.
Because it generates a high fever of 700 to 800 degrees Celsius,
If the container frame 1 is made of glass or the like, it is likely that it will undergo abnormal thermal expansion and break, especially near the heater 12. In this regard, in this embodiment, since both the inner frame 15 and the outer frame 14 of the container frame 1 are made of stainless steel with excellent thermal conductivity,
Thermal expansion as described above does not occur, and therefore, the product can be made sufficiently durable for use without cracking. Moreover, in this example,
Due to the stainless steel material, there is no need for a plate as thick as aluminum, and a thin wall can ensure sufficient strength to withstand vacuum, and the thinness also reduces heat loss. Furthermore, stainless steel has a lower emissivity than ordinary steel plates, etc. Therefore, the inner frame 15 made of stainless steel reflects the heat of the heaters 12 and 13 well and contributes to the heating of the pot 2. On the other hand, the outer frame 14
This helps to further reduce heat loss due to radiation.
一方、前述の真空による断熱は従来の断熱材に
よるものの様な厚みを確保する必要がなく薄形構
造でも充分な断熱作用を発揮するので、器枠１そ
のものとしてもこれを薄形化できて要するに小形
化し得、その分表面積も小ならしめて更に一層熱
損失を少なくできる。 On the other hand, the vacuum insulation described above does not need to be as thick as conventional insulation materials, and it provides sufficient insulation even with a thin structure, so the container frame 1 itself can be made thinner. It can be made smaller and the surface area can be reduced accordingly, further reducing heat loss.
加えて、保温ヒータ１３を炊飯ヒータ１２と共
に即ち内枠１５から離して設けたことからは、胴
ヒータ等と称してその保温ヒータ１３を内枠１５
に接触させて添設していた従来のものの様な該内
枠１５に直接伝わる熱損失が無く、特にその内枠
１５を前述のステンレスなど熱伝導性の良い材質
にて構成したものの場合にはその伝熱損失も大き
いと考えられるから一層有効で、しかもその設置
や取付けに炊飯ヒータ１２用の部品例えば碍子１
１等を共通に使用できる利点すらある。更に、器
枠１内にあつて炊飯及び保温等のための感温機能
を奏する感温器を器枠１内から器枠１の底部を通
し器枠１外に出させて設けたことからは、それに
伴いその電気接続用のリード線（図示せず）も器
枠１外に位置するようになるから、それが前述の
ヒータ１２，１３の輻射熱による高温にさらされ
ることなく、又、釜２の外面に付着した水滴が加
熱されて生ずる蒸気等に触れることもなくて、早
期劣化の必配をなくし得、安全性の確保に効果を
奏する。尚この場合、ヒータ１２，１３の電気接
続用のリード線（図示せず）も同様であり、従つ
てそれについても同様の効果を得ることができ
る。 In addition, since the heat-retaining heater 13 is provided together with the rice-cooking heater 12, that is, apart from the inner frame 15, the heat-retaining heater 13 is referred to as a body heater or the like.
There is no heat loss directly transmitted to the inner frame 15 unlike in the conventional case where the inner frame 15 is attached in contact with the inner frame 15, and especially when the inner frame 15 is made of a material with good thermal conductivity such as the above-mentioned stainless steel. It is even more effective because the heat transfer loss is considered to be large, and it is necessary to install and install parts such as the insulator 12 for the rice cooker heater 12.
There is even an advantage of being able to use the 1st class in common. Furthermore, since the thermosensor, which is located inside the container frame 1 and has a temperature sensing function for cooking rice and keeping it warm, is provided by passing the bottom of the container frame 1 from inside the container frame 1 and extending it out of the container frame 1. Accordingly, the electrical connection lead wire (not shown) is also located outside the pot casing 1, so that it is not exposed to the high temperature caused by the radiant heat of the heaters 12 and 13, and Since the water droplets attached to the outer surface of the product do not come into contact with the steam generated by heating, it is possible to eliminate the possibility of early deterioration, which is effective in ensuring safety. In this case, the same applies to the lead wires (not shown) for electrical connection of the heaters 12 and 13, and therefore, the same effect can be obtained therefrom as well.
又、特に本実施例のものの場合、器枠１は周側
部のほか底部も真空であり、これによつて一段と
良好な断熱性能を得ることができる。そして斯様
な器枠１にあつて、上述の感温器やヒータ１２，
１３のリード線を器枠１の底部を通し器枠１外に
出させるにつき、その挿通用の孔を器枠１底部の
孔周縁部で外枠１４及び内枠１５を密に接合して
設けたことからは、器枠１の真空性を損ねないば
かりか、特にはその接合部分で器枠１底部の外枠
１４及び内枠１５間の支えができ、よつてその部
分の強度を大ならしめ得、組立段階での取扱い時
に於ける変形など不良品の発生を少なくすること
ができる。 In addition, especially in the case of this embodiment, the bottom of the container frame 1 as well as the peripheral side is in a vacuum, thereby making it possible to obtain even better heat insulation performance. In such a container frame 1, the above-mentioned temperature sensor and heater 12,
In order to allow the lead wires 13 to pass through the bottom of the container frame 1 and exit from the container frame 1, a hole for the insertion thereof is provided by closely joining the outer frame 14 and the inner frame 15 at the periphery of the hole at the bottom of the container frame 1. This not only does not impair the vacuum properties of the container frame 1, but also allows the joint between the outer frame 14 and the inner frame 15 at the bottom of the container frame 1 to be supported, thereby increasing the strength of that part. It is possible to reduce the occurrence of defective products such as deformation during handling during the assembly stage.
そして又、器枠１が断熱剤から成る支持枠１６
を介して釜２を支える様にしたことからは、釜２
の熱が熱伝導性に優れたステンレスから成る器枠
１を伝つて放散されることを防止できる利点があ
り、炊飯或いは保温を前述にも増して一層熱効率
良く行なわしめ得るものである。 Furthermore, the support frame 16 in which the container frame 1 is made of a heat insulating material
Since pot 2 is supported through the
This has the advantage that heat can be prevented from being dissipated through the container frame 1 made of stainless steel with excellent thermal conductivity, and rice cooking or keeping warm can be carried out even more thermally efficiently than previously described.
但し、本発明は上記し且つ図面に示した実施例
のにみ限定されるものではなく、従つて上記各構
成の他に例えば保温に関し釜２でなく内枠１５の
温度を検知する様に変えても良い等、要旨を逸脱
しない範囲内で適宜変更して実施し得る。 However, the present invention is not limited to the embodiments described above and shown in the drawings, and therefore, in addition to the above-mentioned configurations, for example, the temperature of the inner frame 15 rather than the pot 2 may be changed to detect the temperature of the inner frame 15 regarding heat retention. It may be implemented with appropriate changes within the scope without departing from the gist.
以上要するに本発明は、ヒータを有する器枠内
に釜を収容し該釜を前記ヒータからの輻射熱によ
り加熱する様にした炊飯器にあつて、前記器枠を
ステンレス製の外枠とこれに密に接合したステン
レス製の内枠との二重壁構造により形成し、その
間を真空にすると共に、前記ヒータを炊飯ヒータ
及び保温ヒータにより構成して、これらを前記内
枠から離して設け、且つ前記器枠内にあつて炊飯
及び保温等のための感温機能を奏する感温器を器
枠内から器枠の底部を通し器枠外に出させて設け
たことを特徴とするものであり、以てかまど風の
加熱を行なうものに於いて枢要な器枠の断熱性を
向上させ得、又、大きさも小形化でき、更に熱損
失を極めて少なくし得る上、安全性にも優れると
いう高性能な炊飯器を提供できるものである。 In summary, the present invention provides a rice cooker in which a pot is housed in a container frame having a heater, and the pot is heated by radiant heat from the heater, and in which the container frame is tightly fitted with a stainless steel outer frame. It is formed by a double wall structure with a stainless steel inner frame joined to the inner frame, and a vacuum is created between them, and the heater is composed of a rice cooking heater and a heat retention heater, and these are provided apart from the inner frame, and It is characterized by having a thermosensor placed inside the container frame that performs a temperature sensing function for cooking rice, keeping warm, etc., by extending the bottom of the container frame from inside the container frame to the outside of the container frame. It is a high-performance product that improves the heat insulation of the frame, which is important for those that use stove-style heating, and can also be made smaller, minimize heat loss, and have excellent safety. A rice cooker can be provided.
図は本発明の一実施例を示した破断側面図であ
る。
図中、１は器枠、２は釜、８は炊飯完了検知ス
イツチの検知部（感温器）、９は保温検知スイツ
チ（感温器）、１２は炊飯ヒータ、１３は保温ヒ
ータ、１４は外枠、１５は内枠、１６は支持枠で
ある。
The figure is a cutaway side view showing one embodiment of the present invention. In the figure, 1 is the cooking frame, 2 is the pot, 8 is the detection part of the rice cooking completion detection switch (temperature sensor), 9 is the heat retention detection switch (temperature sensor), 12 is the rice cooking heater, 13 is the heat retention heater, and 14 is the rice retention heater. The outer frame, 15 is an inner frame, and 16 is a support frame.
Claims (1)
記ヒータからの輻射熱により加熱する様にしたも
のであつて、前記器枠をステンレス製の外枠とこ
れに密に接合したステンレス製の内枠との二重壁
構造により形成し、その間を真空にすると共に、
前記ヒータを炊飯ヒータ及び保温ヒータにより構
成して、これらを前記内枠から離して設け、且つ
前記器枠内にあつて炊飯及び保温等のための感温
機能を奏する感温器を器枠内から器枠の底部を通
し器枠外に出させて設けたことを特徴とする炊飯
器。 ２ 器枠は周側部のほか底部も真空で、該底部に
感温器を通す孔がその周縁部で外枠及び内枠を密
に接合して設けられていることを特徴とする特許
請求の範囲第１項に記載の炊飯器。 ３ 器枠は断熱材から成る支持枠を介して釜を支
える様になつていることを特徴とする特許請求の
範囲第１項に記載の炊飯器。[Scope of Claims] 1. A pot is housed in a container frame having a heater, and the pot is heated by radiant heat from the heater, and the container frame is made of a stainless steel outer frame and tightly sealed therein. It is formed by a double wall structure with a stainless steel inner frame bonded to the inner frame, and a vacuum is created between them,
The heater is constituted by a rice cooking heater and a heat-retaining heater, and these heaters are provided apart from the inner frame, and a temperature sensor that is located within the vessel frame and has a temperature-sensing function for cooking rice, keeping the rice warm, etc. is disposed within the vessel frame. A rice cooker characterized in that the bottom of the rice cooker frame is made to protrude outside the rice cooker frame. 2. A patent claim characterized in that the container frame has a vacuum at the bottom as well as the peripheral sides, and a hole through which a temperature sensor is passed is provided in the bottom by tightly joining the outer frame and the inner frame at the periphery. The rice cooker according to item 1. 3. The rice cooker according to claim 1, wherein the rice cooker frame supports the pot via a support frame made of a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14679879A JPS5670725A (en) | 1979-11-13 | 1979-11-13 | Rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14679879A JPS5670725A (en) | 1979-11-13 | 1979-11-13 | Rice cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5670725A JPS5670725A (en) | 1981-06-12 |
| JPS6244482B2 true JPS6244482B2 (en) | 1987-09-21 |
Family
ID=15415763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14679879A Granted JPS5670725A (en) | 1979-11-13 | 1979-11-13 | Rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5670725A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131170A (en) * | 1977-04-21 | 1978-11-15 | Tokyo Shibaura Electric Co | Rice boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4866867U (en) * | 1971-11-29 | 1973-08-24 |
-
1979
- 1979-11-13 JP JP14679879A patent/JPS5670725A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131170A (en) * | 1977-04-21 | 1978-11-15 | Tokyo Shibaura Electric Co | Rice boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5670725A (en) | 1981-06-12 |
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