JP2004173737A - Electromagnetic cooking apparatus - Google Patents

Electromagnetic cooking apparatus Download PDF

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Publication number
JP2004173737A
JP2004173737A JP2002340517A JP2002340517A JP2004173737A JP 2004173737 A JP2004173737 A JP 2004173737A JP 2002340517 A JP2002340517 A JP 2002340517A JP 2002340517 A JP2002340517 A JP 2002340517A JP 2004173737 A JP2004173737 A JP 2004173737A
Authority
JP
Japan
Prior art keywords
metal plate
magnetic metal
main body
hole
hole part
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.)
Pending
Application number
JP2002340517A
Other languages
Japanese (ja)
Inventor
Masato Yoshida
正人 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MITSUBOSHI CUTLERY
MITSUBOSHI HAMONO KK
Original Assignee
MITSUBOSHI CUTLERY
MITSUBOSHI HAMONO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MITSUBOSHI CUTLERY, MITSUBOSHI HAMONO KK filed Critical MITSUBOSHI CUTLERY
Priority to JP2002340517A priority Critical patent/JP2004173737A/en
Publication of JP2004173737A publication Critical patent/JP2004173737A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To improve heating efficiency by keeping flatness of an abutting bottom surface of a magnetic metal plate and then keeping the close contact between the abutting bottom surface of the magnetic metal plate and the mounting surface of an electromagnetic heater by allowing a through hole part to absorb the thermal expansion deformation of a magnetic metal plate during cooking, and to satisfactorily keep the flatness of the abutting bottom surface of the magnetic metal plate by opening the inner peripheral surface of the through hole part of the magnetic metal plate so as to allow the through hole part to satisfactorily absorb thermal expansion deformation. <P>SOLUTION: The magnetic metal plate 2 made from iron, stainless steel, etc. is integrally connected with the bottom part of an apparatus body 1 consisting of a nonmagnetic material consisting of an aluminum alloy etc. The magnetic metal plate 2 is formed in the shape of a doughnut disk having the through hole part 2a in a center, and a recess is formed on the bottom surface of the apparatus body positioned at the through hole part of the magnetic metal plate. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は例えば電磁調理用圧力鍋等の電磁誘導加熱方式を利用して調理する際に用いられる電磁調理用器具に関するものである。
【0002】
【従来の技術】
【0003】
【特許文献】
特開2001−321269号公報
【0004】
従来この種の電磁調理用器具として、アルミニュウム合金等の非磁性体からなる器具本体の底部に鉄やステンレススチール等の磁性金属板を一体に接合してなる構造のものが知られている。
【0005】
【発明が解決しようとする課題】
しかしながら上記従来構造の場合、器具本体の底部に一体に接合された磁性金属板は円盤状であるため、加熱調理時に熱変形し、磁性金属板の当接底面と電磁加熱器の載置面との密接性が損なわれ、それだけ加熱効率の低下をもたらすことがあるという不都合を有している。
【0006】
【課題を解決するための手段】
本発明はこのような不都合を解決することを目的とするもので、本発明のうちで、請求項1記載の発明は、アルミニュウム合金等の非磁性体からなる器具本体の底部に鉄やステンレススチール等の磁性金属板を一体に接合してなり、上記磁性金属板は中央部に通穴部を有するドーナツ円盤状に形成されていることを特徴とする電磁調理用器具にある。
【0007】
又、請求項2記載の発明は、上記磁性金属板の通穴部に位置する上記器具本体の底面に凹部を形成してなることを特徴とするものであり、又、請求項3記載の発明は、上記磁性金属板の外周縁部の外方に位置する上記器具本体の底面に段部を形成してなることを特徴とするものであり、又、請求項4記載の発明は、上記器具本体が鍋本体であることを特徴とするものである。
【0008】
【発明の実施の形態】
図1乃至10図は本発明の実施の形態例を示し、1は器具本体であって、この場合、圧力鍋本体Kであり、アルミニュウム合金等の非磁性体からなる器具本体1の底部に鉄やステンレススチール等の磁性金属板2を一体に接合してなり、磁性金属板2は中央部に通穴部2aを有するドーナツ円盤状に形成されている。
【0009】
この場合、上記磁性金属板2の通穴部に位置する上記器具本体1の底面に凹部1aを形成し、かつ、上記磁性金属板2の外周縁部の外方に位置する上記器具本体1の底面に段部1bを形成している。
【0010】
この場合の製造過程を図5乃至図10により説明すると、先ず図5の如く、磁性金属板2及び磁性金属板2と同形、同材質の補助板3を二枚重ねた状態で通穴部2a、抜き穴部3a及び複数個の小穴2b及び小穴3bを同時形成し、図6、図7の如く、この二枚重ね状の二枚のドーナッツ円盤状の磁性金属板2、補助板3を器具本体1の底面にプレス加工し、このプレス加工により通穴部2a及び抜き穴部3a、複数個の小穴2b及び小穴3b内に器具本体1の底肉部Sがくい込み、その後、図8の如く、補助板3を取り外し、こ補助板3の取り外しにより底肉部Sが磁性金属板2通穴部2a及び小穴2bから露呈突出し、図9の如く、この底肉部Sの突出部分をプレス加工によりかしめ、このかしめにより通穴部2aの内周縁部及び複数個の小穴2bの内周縁部に底肉部Sがかしめられて磁性金属板2は器具本体1の底面に一体に接合され、この接合後に、図10の如く、磁性金属板2の通穴部2aに位置する上記器具本体1の底面に凹部1aを旋削加工等により形成すると共に上記磁性金属板2の外周縁部の外方に位置する上記器具本体1の底面に段部1bを旋削加工等により形成し、必要に応じて、磁性金属板2の当接底面を平坦に旋削加工等をするようにしている。
【0011】
この実施の形態例は上記構成であるから、アルミニュウム合金等の非磁性体からなる器具本体1の底部に鉄やステンレススチール等の磁性金属板2を一体に接合し、この磁性金属板2は中央部に通穴部2aを有するドーナツ円盤状に形成されているから、加熱調理時における、磁性金属板2の熱膨張変形を通穴部2aが吸収することになり、それだけ、磁性金属板2の当接底面の平坦性が維持され、磁性金属板2の当接底面と図外の電磁加熱器の載置面との密接性が維持され、加熱効率の向上を図ることができる。
【0012】
又、この場合、上記磁性金属板2の通穴部2aに位置する上記器具本体1の底面に凹部1aを形成してなるから、磁性金属板2の通穴部2aの内周面が開放され、熱膨張変形を一層良好に通穴部2aが吸収することになり、それだけ、磁性金属板2の当接底面の平坦性を良好に維持することができ、又、この場合、上記磁性金属板2の外周縁部の外方に位置する上記器具本体1の底面に段部1bを形成してなるから、磁性金属板2の外周縁部が開放され、磁性金属板2の当接底面の平坦性を良好に維持することができ、又、この場合、上記器具本体1が鍋本体Kであるから、電磁調理に良好な鍋を製作することができる。
【0013】
尚、本発明は上記実施の形態例に限られるものではなく、例えば、通穴部2aを有するドーナツ円盤状の磁性金属板を他のかしめ手段や接着手段等の接合手段を用いて一体に接合することにより凹部1aを形成しなくても通穴部2aの存在により同様な効果を得ることができ、又、種類や形態、構造等の異なる器具本体にも適用することができ、又、器具本体1及び磁性金属板2の材質は適宜変更して設計される。
【0014】
【発明の効果】
本発明は上述の如く、請求項1記載の発明にあっては、アルミニュウム合金等の非磁性体からなる器具本体の底部に鉄やステンレススチール等の磁性金属板を一体に接合し、この磁性金属板は中央部に通穴部を有するドーナツ円盤状に形成されているから、加熱調理時における、磁性金属板の熱膨張変形を通穴部が吸収することになり、それだけ、磁性金属板の当接底面の平坦性が維持され、磁性金属板の当接底面と電磁加熱器の載置面との密接性が維持され、加熱効率の向上を図ることができる。
【0015】
又、請求項2記載の発明にあっては、上記磁性金属板の通穴部に位置する上記器具本体の底面に凹部を形成してなるから、磁性金属板の通穴部の内周面が開放され、熱膨張変形を一層良好に通穴部が吸収することになり、それだけ、磁性金属板の当接底面の平坦性を良好に維持することができ、又、請求項3記載の発明にあっては、上記磁性金属板の外周縁部の外方に位置する上記器具本体の底面にを形成してなるから、磁性金属板の外周縁部が開放され、磁性金属板の当接底面の平坦性を良好に維持することができ、又、請求項4記載の発明にあっては、器具本体が鍋本体であるから、電磁調理に良好な鍋を製作することができる。
【0016】
以上の如く、所期の目的を充分達成することができる。
【図面の簡単な説明】
【図1】本発明の実施の形態例の全体斜視図である。
【図2】本発明の実施の形態例の底面部分斜視図である。
【図3】本発明の実施の形態例の底面図である。
【図4】本発明の実施の形態例の部分拡大断面図である。
【図5】本発明の実施の形態例の部分分解斜視図である。
【図6】本発明の実施の形態例の部分拡大断面図である。
【図7】本発明の実施の形態例の底面部分断面図である。
【図8】本発明の実施の形態例の底面部分断面図である。
【図9】本発明の実施の形態例の底面部分断面図である。
【図10】本発明の実施の形態例の底面部分断面図である。
【符号の説明】
1 器具本体
1a 凹部
1b 段部
2 磁性金属板
2a 通穴部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electromagnetic cooking appliance used when cooking using an electromagnetic induction heating method such as an electromagnetic cooking pressure cooker.
[0002]
[Prior art]
[0003]
[Patent Document]
JP 2001-321269 A
2. Description of the Related Art Conventionally, as this type of electromagnetic cooking utensil, there is known an electromagnetic cooking utensil having a structure in which a magnetic metal plate such as iron or stainless steel is integrally joined to a bottom of a utensil main body made of a nonmagnetic material such as an aluminum alloy.
[0005]
[Problems to be solved by the invention]
However, in the case of the above-mentioned conventional structure, the magnetic metal plate integrally joined to the bottom of the appliance body is disc-shaped, so that it is thermally deformed during heating and cooking, and the abutting bottom surface of the magnetic metal plate and the mounting surface of the electromagnetic heater. Has a disadvantage in that the closeness of the substrate is impaired, which may lead to a decrease in the heating efficiency.
[0006]
[Means for Solving the Problems]
The present invention is intended to solve such a disadvantage, and among the present invention, the invention described in claim 1 is characterized in that iron or stainless steel is provided on the bottom of a tool body made of a non-magnetic material such as an aluminum alloy. And the like. The magnetic metal plate is formed in the shape of a donut disk having a through hole in the center, and the magnetic metal plate is formed as a single piece.
[0007]
The invention according to claim 2 is characterized in that a recess is formed in the bottom surface of the instrument body located at the through hole of the magnetic metal plate, and the invention according to claim 3 is provided. Is characterized in that a step is formed on the bottom surface of the instrument body located outside the outer peripheral edge of the magnetic metal plate, and the invention according to claim 4 is characterized in that The main body is a pot main body.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 10 show an embodiment of the present invention, in which 1 is an appliance body, in this case, a pressure cooker body K, which is provided with iron on the bottom of the appliance body 1 made of a non-magnetic material such as an aluminum alloy. And a magnetic metal plate 2 made of stainless steel or the like. The magnetic metal plate 2 is formed in the shape of a donut disk having a through hole 2a at the center.
[0009]
In this case, a concave portion 1a is formed in the bottom surface of the instrument main body 1 located at the through hole of the magnetic metal plate 2, and the instrument main body 1 located outside the outer peripheral edge of the magnetic metal plate 2 is formed. A step 1b is formed on the bottom surface.
[0010]
The manufacturing process in this case will be described with reference to FIG. 5 to FIG. 10. First, as shown in FIG. A hole 3a and a plurality of small holes 2b and small holes 3b are simultaneously formed. As shown in FIGS. 6 and 7, the two donut-shaped disk-shaped magnetic metal plates 2 and the auxiliary plate 3 are attached to the bottom surface of the instrument body 1. The bottom portion S of the instrument body 1 is inserted into the through-hole 2a and the through-hole 3a, the plurality of small holes 2b and the small holes 3b, and thereafter, as shown in FIG. When the auxiliary plate 3 is removed, the bottom portion S is exposed and protrudes from the magnetic metal plate 2 through-hole portion 2a and the small hole 2b. As shown in FIG. 9, the protruding portion of the bottom portion S is caulked by pressing. The inner peripheral edge of the through hole 2a and a plurality of The bottom metal portion S is caulked at the inner peripheral edge of the small hole 2b, and the magnetic metal plate 2 is integrally joined to the bottom surface of the instrument main body 1. After this joining, as shown in FIG. A concave portion 1a is formed on the bottom surface of the tool main body 1 located by turning or the like, and a step portion 1b is formed on the bottom surface of the tool main body 1 located outside the outer peripheral edge of the magnetic metal plate 2 by turning or the like. Then, if necessary, the contact bottom surface of the magnetic metal plate 2 is flatly turned or the like.
[0011]
Since this embodiment has the above configuration, a magnetic metal plate 2 such as iron or stainless steel is integrally joined to the bottom of the instrument body 1 made of a nonmagnetic material such as an aluminum alloy. Since it is formed in the shape of a donut disk having a through-hole 2a in the portion, the through-hole 2a absorbs the thermal expansion deformation of the magnetic metal plate 2 during heating and cooking. The flatness of the contact bottom surface is maintained, the close contact between the contact bottom surface of the magnetic metal plate 2 and the mounting surface of the electromagnetic heater (not shown) is maintained, and the heating efficiency can be improved.
[0012]
In this case, since the concave portion 1a is formed in the bottom surface of the instrument body 1 located at the through hole 2a of the magnetic metal plate 2, the inner peripheral surface of the through hole 2a of the magnetic metal plate 2 is opened. In addition, the through hole 2a absorbs the thermal expansion deformation more favorably, so that the flatness of the contact bottom surface of the magnetic metal plate 2 can be maintained well, and in this case, the magnetic metal plate 2 Since the stepped portion 1b is formed on the bottom surface of the instrument main body 1 located outside the outer peripheral edge portion of the magnetic metal plate 2, the outer peripheral edge portion of the magnetic metal plate 2 is opened, and the contact bottom surface of the magnetic metal plate 2 is flat. In this case, since the appliance main body 1 is the pan main body K, a pan excellent for electromagnetic cooking can be manufactured.
[0013]
The present invention is not limited to the above-described embodiment. For example, a donut disk-shaped magnetic metal plate having a through hole 2a is integrally joined using another caulking means or a joining means such as an adhesive means. By doing so, the same effect can be obtained due to the presence of the through-hole portion 2a without forming the concave portion 1a, and the present invention can be applied to a device main body of a different type, form, structure, and the like. The materials of the main body 1 and the magnetic metal plate 2 are appropriately changed and designed.
[0014]
【The invention's effect】
As described above, according to the present invention, a magnetic metal plate such as iron or stainless steel is integrally joined to the bottom of an instrument body made of a non-magnetic material such as an aluminum alloy. Since the plate is formed in the shape of a donut disk having a through-hole in the center, the through-hole absorbs the thermal expansion deformation of the magnetic metal plate during heating and cooking. The flatness of the contact surface is maintained, the close contact between the contact surface of the magnetic metal plate and the mounting surface of the electromagnetic heater is maintained, and the heating efficiency can be improved.
[0015]
According to the second aspect of the present invention, since the concave portion is formed on the bottom surface of the instrument main body located at the through hole of the magnetic metal plate, the inner peripheral surface of the through hole of the magnetic metal plate is formed. Since the through hole is opened and the thermal expansion deformation is better absorbed by the through hole, the flatness of the contacting bottom surface of the magnetic metal plate can be maintained satisfactorily accordingly. Since it is formed on the bottom surface of the instrument main body located outside the outer peripheral edge of the magnetic metal plate, the outer peripheral edge of the magnetic metal plate is opened, and the contact bottom surface of the magnetic metal plate is formed. Good flatness can be maintained, and in the invention according to the fourth aspect, since the utensil main body is the pan main body, a pan excellent in electromagnetic cooking can be manufactured.
[0016]
As described above, the intended purpose can be sufficiently achieved.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of an embodiment of the present invention.
FIG. 2 is a partial bottom perspective view of the embodiment of the present invention.
FIG. 3 is a bottom view of the embodiment of the present invention.
FIG. 4 is a partially enlarged sectional view of the embodiment of the present invention.
FIG. 5 is a partially exploded perspective view of the embodiment of the present invention.
FIG. 6 is a partially enlarged sectional view of the embodiment of the present invention.
FIG. 7 is a partial bottom sectional view of the embodiment of the present invention.
FIG. 8 is a bottom partial cross-sectional view of the embodiment of the present invention.
FIG. 9 is a partial bottom sectional view of the embodiment of the present invention.
FIG. 10 is a partial bottom sectional view of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Instrument main body 1a Recess 1b Step 2 Magnetic metal plate 2a Through-hole

Claims (4)

アルミニュウム合金等の非磁性体からなる器具本体の底部に鉄やステンレススチール等の磁性金属板を一体に接合してなり、上記磁性金属板は中央部に通穴部を有するドーナツ円盤状に形成されていることを特徴とする電磁調理用器具。A magnetic metal plate such as iron or stainless steel is integrally joined to the bottom of the instrument body made of a non-magnetic material such as an aluminum alloy. An electromagnetic cooking utensil, comprising: 上記磁性金属板の通穴部に位置する上記器具本体の底面に凹部を形成してなることを特徴とする請求項1記載の電磁調理用器具。2. The electromagnetic cooking appliance according to claim 1, wherein a concave portion is formed in a bottom surface of the appliance main body located at a through hole of the magnetic metal plate. 上記磁性金属板の外周縁部の外方に位置する上記器具本体の底面に段部を形成してなることを特徴とする請求項1又は2記載の電磁調理用器具。3. The electromagnetic cooking appliance according to claim 1, wherein a step is formed on a bottom surface of the appliance main body located outside an outer peripheral edge portion of the magnetic metal plate. 上記器具本体が鍋本体であることを特徴とする請求項1〜3のいずれか1項に記載の電磁調理用器具。The electromagnetic cooking utensil according to any one of claims 1 to 3, wherein the utensil main body is a pan main body.
JP2002340517A 2002-11-25 2002-11-25 Electromagnetic cooking apparatus Pending JP2004173737A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010099196A (en) * 2008-10-22 2010-05-06 Jung Suk Jung Cooking utensil for induction range
CN101675856B (en) * 2008-09-19 2011-12-28 胡程韶 Compound pot bottom of aluminum pot and manufacturing method thereof
JP2014117488A (en) * 2012-12-18 2014-06-30 Imonoya Corp Cooker using electromagnetic induction heating system
PT106778A (en) * 2013-02-12 2014-08-12 Alumínios Manuel G Vieira & Filhos Lda FERTILIZER DISKS FOR ALUMINUM DISHES AND PRODUCTION METHOD
CN104942180A (en) * 2015-06-08 2015-09-30 卢美进 Ferro-aluminum metal composite pot and machining method thereof
CN106388559A (en) * 2016-12-04 2017-02-15 朱云辉 Noble metal ware
CN108851934A (en) * 2017-05-16 2018-11-23 深圳市元疆科技有限公司 A kind of infrared ray electromagnetism composite heating cookware
JP7065251B2 (en) 2018-04-16 2022-05-11 スリーババ シーオー., エルティーディー. Cooking container with heat deformation prevention structure and its manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123292U (en) * 1984-07-17 1986-02-12 立山アルミニウム工業株式会社 Pot for induction cooker
JP2001321269A (en) * 2000-05-15 2001-11-20 Hiroshima Aluminum Industry Co Ltd Method of manufacturing cooker for electromagnetic cooking

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123292U (en) * 1984-07-17 1986-02-12 立山アルミニウム工業株式会社 Pot for induction cooker
JP2001321269A (en) * 2000-05-15 2001-11-20 Hiroshima Aluminum Industry Co Ltd Method of manufacturing cooker for electromagnetic cooking

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101675856B (en) * 2008-09-19 2011-12-28 胡程韶 Compound pot bottom of aluminum pot and manufacturing method thereof
JP2010099196A (en) * 2008-10-22 2010-05-06 Jung Suk Jung Cooking utensil for induction range
JP2014117488A (en) * 2012-12-18 2014-06-30 Imonoya Corp Cooker using electromagnetic induction heating system
PT106778A (en) * 2013-02-12 2014-08-12 Alumínios Manuel G Vieira & Filhos Lda FERTILIZER DISKS FOR ALUMINUM DISHES AND PRODUCTION METHOD
CN104942180A (en) * 2015-06-08 2015-09-30 卢美进 Ferro-aluminum metal composite pot and machining method thereof
CN106388559A (en) * 2016-12-04 2017-02-15 朱云辉 Noble metal ware
CN108851934A (en) * 2017-05-16 2018-11-23 深圳市元疆科技有限公司 A kind of infrared ray electromagnetism composite heating cookware
JP7065251B2 (en) 2018-04-16 2022-05-11 スリーババ シーオー., エルティーディー. Cooking container with heat deformation prevention structure and its manufacturing method

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