JP3486896B2 - Warmer - Google Patents
WarmerInfo
- Publication number
- JP3486896B2 JP3486896B2 JP16090799A JP16090799A JP3486896B2 JP 3486896 B2 JP3486896 B2 JP 3486896B2 JP 16090799 A JP16090799 A JP 16090799A JP 16090799 A JP16090799 A JP 16090799A JP 3486896 B2 JP3486896 B2 JP 3486896B2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- warmer
- heat insulating
- insulating material
- outer shell
- 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 - Fee Related
Links
- 239000011810 insulating material Substances 0.000 claims description 155
- 238000005452 bending Methods 0.000 claims description 66
- 239000012212 insulator Substances 0.000 claims description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 230000005674 electromagnetic induction Effects 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000011257 shell material Substances 0.000 description 76
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 15
- 230000006866 deterioration Effects 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000005482 strain hardening Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cookers (AREA)
Description
【発明の属する技術分野】本発明は、電気ポットあるい
は保温釜などの保温器に関する。TECHNICAL FIELD The present invention relates to a warmer such as an electric pot or a warmer.
【発明が解決しようとする課題】この種の保温器におい
て、保温性を改良してよりいっそうの省エネルギーを図
るには、断熱性を高めることが必要である。例えば特公
平３−５５７１９号公報に記載のように、内部を真空に
した板状の断熱材を用いれば、断熱性を高めることはで
きる。保温器の外形が丸みを帯びたものである場合、こ
の形状に合せて断熱材を湾曲させなければならないが、
このように断熱材を湾曲させる場合、湾曲加工に際して
断熱材の外殻材料が破れないようにすることが製造上の
難点になっていた。すなわち、内部に真空層を形成する
断熱材は、形状保持のため外殻を硬く強固なものとしな
ければならないため、湾曲加工が面倒である。また、無
理に湾曲させようとすると、外殻が損傷したり、外殻に
クラックが生じたりして真空性が保てないおそれがあ
る。本発明は、このような問題点を解決しようとするも
ので、内部を真空にした板状の断熱材を用いた保温器に
おいて、断熱材の湾曲加工を容易にし、保温器本体の内
部への断熱材の装着性を改善するとともに、湾曲加工時
に断熱材が破損することを防止することを目的とする。In this type of heat retaining device, it is necessary to improve the heat insulating property in order to improve the heat retaining property and further save energy. For example, as described in Japanese Patent Publication No. 3-55719, if a plate-shaped heat insulating material having a vacuum inside is used, the heat insulating property can be improved. If the heat insulator has a rounded outer shape, the heat insulating material must be curved to match this shape.
In the case of bending the heat insulating material in this way, it has been a manufacturing difficulty to prevent the outer shell material of the heat insulating material from breaking during the bending process. That is, in the heat insulating material forming the vacuum layer inside, the outer shell must be made hard and strong in order to maintain the shape, so that the bending process is troublesome. Also, if an attempt is made forcibly bent, damaged outer shell, there is a possibility vacuum resistance or cracks in the shell is not a maintained. The present invention is intended to solve such a problem, and in a heat insulator using a plate-shaped heat insulating material whose inside is evacuated, facilitates bending of the heat insulating material, and An object of the present invention is to improve the mountability of the heat insulating material and prevent the heat insulating material from being damaged during bending.
【課題を解決するための手段】請求項１の発明の保温器
は、前記目的を達成するために、保温器本体と、この保
温器本体に収納される容器を加熱する電磁誘導コイル
と、前記保温器本体の内部に装着された断熱材とを備
え、この断熱材は、アルミニウムの金属シートで筐体の
外殻を形成し、所定の厚さで真空層を内部に形成した真
空部を有する板状部材に、厚さが前記真空部よりも薄い
非真空部を部分的に形成し、この板状部材を前記非真空
部で湾曲させて前記保温器本体内に装着してなるもので
ある。断熱材をなす板状部材は、アルミニウムの金属シ
ートで筐体の外殻を形成し、内部に真空層を形成するも
のであるため、ある程度硬く強固なものでなければなら
ないが、内部に真空層がなく比較的薄い非真空部では、
比較的容易に湾曲加工ができ、断熱材の装着性が向上す
る。また、湾曲を手加工で行うことも可能である。さら
に、真空層がない非真空部では、破損による真空性の低
下も問題とならない。請求項２の発明は、請求項１の発
明の保温器において、保温器本体の前面側に非真空部を
湾曲させて配設し、保温器本体の両側面部に真空部を配
設したものである。保温器本体の前面側が丸みのある形
状になっている場合、この前面側に非真空部を湾曲させ
て配設することにより、保温器本体の前面側に装着する
ための湾曲ないし折り曲げ加工が容易になり、断熱材の
装着性が向上する。請求項３の発明は、請求項１または
２の発明の保温器において、非真空部と保温器本体の外
殻または内枠との間に空気層を形成したものである。非
真空部は真空部に比べ断熱性が低下する問題があるが、
請求項３の発明のように、非真空部と保温器本体の外殻
または内枠との間に空気層を形成することにより断熱性
の低下が補われ、非真空部を形成したことによる断熱性
の大幅な低下が防止される。請求項４の発明は、請求項
１〜３のいずれかの発明の保温器において、板状部材の
横幅の中心で、左右のほぼ対称位置に非真空部を配設す
るか、あるいは、左右にほぼ対称形状に非真空部を形成
したものである。これにより、非真空部の位置管理が横
幅の中心を基準として管理できるようになり、製造性が
向上する。また、断熱材を保温器本体に装着するとき方
向性が極力なくなることにより、装着作業もより容易に
なる。請求項５の発明は、請求項１〜４のいずれかの発
明の保温器において、板状部材における非真空部の外皮
は、真空部を形成する外皮と一体に形成してなるもので
ある。これにより、非真空部を形成するための別部材が
不要となり、非真空部の形成が容易になる。請求項６の
発明の保温器は、前記目的を達成するために、保温器本
体と、この保温器本体に収納される容器を加熱する電磁
誘導コイルと、前記保温器本体の内部に装着された断熱
材とを備え、この断熱材は、アルミニウムの金属シート
で筐体の外殻を形成し、所定の厚さで真空層を内部に形
成した板状部材に、厚肉部と、厚さがこの厚肉部よりも
薄い薄肉部とを形成してなり、この板状部材を前記薄肉
部で湾曲させて前記保温器本体内に装着してなるもので
ある。断熱材をなす板状部材は、アルミニウムの金属シ
ートで筐体の外殻を形成し、内部に真空層を形成するも
のであるため、ある程度硬く強固なものでなければなら
ないが、比較的薄い薄肉部では、比較的容易に湾曲加工
ができ、断熱材の装着性が向上するとともに、湾曲加工
時の断熱材の破損が生じにくくなる。また、湾曲を手加
工で行うことも可能である。請求項７の発明は、請求項
６の発明の保温器において、保温器本体の前面側に薄肉
部を湾曲させて配設し、保温器本体の両側面部に厚肉部
を配設したものである。保温器本体の前面側が丸みのあ
る形状になっている場合、この前面側に薄肉部を湾曲さ
せて配設することにより、保温器本体の前面側に装着す
るための湾曲ないし折り曲げ加工が容易になり、断熱材
の装着性が向上する。請求項８の発明は、請求項６また
は７の発明の保温器において、薄肉部と保温器本体の外
殻または内枠との間に空気層を形成したものである。薄
肉部はより厚い厚肉部に比べ断熱性が低下する問題があ
るが、請求項８の発明のように、薄肉部と保温器本体の
外殻または内枠との間に空気層を形成することにより断
熱性の低下が補われ、薄肉部を形成したことによる断熱
性の大幅な低下が防止される。請求項９の発明は、請求
項６〜８のいずれかの発明の保温器において、板状部材
の横幅の中心で、左右のほぼ対称位置に薄肉部を配設す
るか、あるいは、左右にほぼ対称形状に薄肉部を形成し
たものである。これにより、薄肉部の位置管理が横幅の
中心を基準として管理できるようになり、製造性が向上
する。また、断熱材を保温器本体に装着するとき方向性
が極力なくなることにより、装着作業もより容易にな
る。請求項１０の発明は、請求項６〜９のいずれかの発
明の保温器において、板状部材における薄肉部の外皮
は、厚肉部を形成する外皮と一体に形成してなるもので
ある。これにより、薄肉部を形成するための別部材が不
要となり、薄肉部の形成が容易になる。請求項１１の発
明の保温器は、前記目的を達成するために、保温器本体
と、この保温器本体に収納される容器を加熱する電磁誘
導コイルと、前記保温器本体の内部に装着された板状の
断熱材とを備え、この断熱材は、非弾性特性を有するア
ルミニウムの金属シートで筐体の外殻を形成し、この外
殻の内部に低熱伝導率材からなる粉末を収容して前記筐
体の厚さを保持し、前記外殻を密閉して内部を真空にし
てなるとともに、内部が真空になった真空部に厚さが８
mm以下の部分を有し、前記保温器本体内の被保温容器の
外側に前記断熱材を前記厚さが８mm以下の真空部で湾曲
させて装着したものである。ステンレスのように弾力性
のある金属の場合、湾曲加工に強い力が必要になり、手
では容易に曲げにくい。また、いったん曲げた場合で
も、元に戻る力が強いため、湾曲加工性が悪くなる。こ
れに対して、非弾性特性を有する金属の一種であるアル
ミニウムは加工硬化性が高く、前記ステンレス、鉄、チ
タン、銅などに比べ、同一の厚さの場合、曲げ加工がし
やすく、またいったん曲げると元に戻りにくい特性があ
る反面、真空部の厚さが厚いと、曲げ加工が極めて困難
になる。しかしながら、真空部の厚さが８mm以下であれ
ば、比較的容易に曲げることができ、湾曲加工が容易に
できる。請求項１２の発明は、請求項１１の発明の保温
器において、断熱材の内部の真空度を0.5Torr以上にし
たものである。断熱材の内部の真空度が高いと、筐体の
形状を保つために、圧力に抗することができる外殻とす
ることが必要となり、その結果、断熱材が硬くなり、曲
げ加工しにくくなる。しかしながら、真空部の厚さが８
mm以下の場合、0.5Torr以上の真空度であれば、比較的
容易に曲げることができ、湾曲加工が容易にできる。請
求項１３の発明は、請求項１１または１２の発明の保温
器において、断熱材は、真空部における湾曲した部分以
外の厚さを８mm以上にしたものである。真空部の厚さを
８mm以下に薄くすると、湾曲加工しやすくなる反面、断
熱性が悪くなる場合がある。これに対して、湾曲加工し
ない部分の真空部の厚さは厚くすることにより、断熱性
を向上させることができる。請求項１４の発明の保温器
は、前記目的を達成するために、保温器本体と、この保
温器本体に収納される容器を加熱する電磁誘導コイル
と、前記保温器本体の内部に装着された板状の断熱材と
を備え、この断熱材は、非弾性特性を有するアルミニウ
ムの金属シートで筐体の外殻を形成し、この外殻の内部
に低熱伝導率材からなる粉末を収容して前記筐体の厚さ
を保持し、前記外殻を密閉して内部を真空にしてなると
ともに、内部が真空になった真空部の外殻表面に溝部を
形成し、前記保温器本体内の被保温容器の外側に前記溝
部を主として前記断熱材を湾曲させて装着したものであ
る。ステンレスのように弾力性のある金属の場合、湾曲
加工に強い力が必要になり、手では容易に曲げにくい。
また、いったん曲げた場合でも、元に戻る力が強いた
め、湾曲加工性が悪くなる。これに対して、非弾性特性
を有する金属の一種であるアルミニウムは加工硬化性が
高く、前記ステンレス、鉄、チタン、銅などに比べ、同
一の厚さの場合、曲げ加工がしやすく、またいったん曲
げると元に戻りにくい特性がある反面、真空部の厚さが
厚いと、曲げ加工が極めて困難になる。しかしながら、
非弾性特性のために溝部の形成が容易であり、また、溝
部を形成しておくことにより、この溝部をきっかけとし
て容易に曲げ加工を行うことができる。請求項１５の発
明は、請求項１４の発明の保温器において、真空部の厚
さを８mm以下としたものである。真空部の厚さが８mm程
度以下と比較的薄い場合、曲げ加工は比較的しやすい
が、溝部を形成することによりさらに曲げ加工が容易に
なり、手で湾曲加工を行うことができるなど、湾曲加工
が極めて容易となる。請求項１６の発明は、請求項１４
または１５の発明の保温器において、溝部は、湾曲加工
される部分の外殻の両面にそれぞれ形成したものであ
る。真空部の外殻表面には、片面にのみ溝部を設けても
よいが、湾曲加工を容易にするために溝部を深くする
と、反りが生じる場合がある。これに対して、両面に溝
部を設ければ、反りが生じないようにできる。これとと
もに、湾曲加工時の曲げ方向に表裏がなくなり、取り扱
い性がよくなる。請求項１７の発明の保温器は、前記目
的を達成するために、保温器本体と、この保温器本体に
収納される容器を加熱する電磁誘導コイルと、前記保温
器本体の内部に装着された板状の断熱材とを備え、この
断熱材は、非弾性特性を有するアルミニウムの金属シー
トで筐体の外殻を形成し、この外殻の内部に低熱伝導率
材からなる粉末を収容して前記筐体の厚さを保持し、前
記外殻を密閉して内部を真空にしてなるとともに、内部
が真空になった真空部を複数に区画し、この区画された
真空部のうち所定の真空部の厚さを８mm以下にし、前記
保温器本体内の被保温容器の外側に前記断熱材を前記厚
さが８mm以下の真空部で湾曲させて装着したものであ
る。このように真空部を区画すれば、真空部の厚さが８
mm以下で比較的簡単に曲げ加工ができる部分と、断熱性
を高めるために真空部を厚くした部分とを区画形成する
ことが、粉末の充填量の管理で容易に行うことができ
る。そして、湾曲加工が必要な部分のみ厚さを薄くする
ことにより、区画されている薄い部分の識別が容易にな
って、保温器本体への装着時にどの真空部を湾曲させれ
ばよいかがすぐに判別でき、手加工で容易に湾曲させて
保温器本体に装着できる。請求項１８の発明の保温器
は、前記目的を達成するために、保温器本体と、この保
温器本体に収納される容器を加熱する電磁誘導コイル
と、前記保温器本体の内部に装着された板状の断熱材と
を備え、この断熱材は、非弾性特性を有するアルミニウ
ムの金属シートで筐体の外殻を形成し、この外殻の内部
に低熱伝導率材からなる粉末を収容して前記筐体の厚さ
を保持し、前記外殻を密閉して内部を真空にしてなると
ともに、内部が真空になった真空部を複数に区画し、こ
の区画された真空部のうち所定の真空部の外殻表面に溝
部を形成し、前記保温器本体内の被保温容器の外側に前
記溝部を主として前記断熱材を湾曲させて装着したもの
である。このように真空部を区画すれば、外殻表面に溝
部が設けてあって比較的簡単に曲げ加工できる部分と、
断熱性を高めるために溝部が設けてない部分とを区画形
成することが、粉末の充填量の管理で容易に行うことが
できる。そして、湾曲加工が必要な部分にのみ溝部を設
けることにより、区画されていて溝部を有する部分の識
別が容易になって、保温器本体への装着時にどの真空部
を湾曲させればよいかがすぐに判別でき、手加工で容易
に湾曲させて保温器本体に装着できる。請求項１９の発
明は、請求項１８の発明の保温器において、断熱材全体
で真空部を３つの真空部に区画し、中央の真空部を湾曲
加工する部分としたものである。このように湾曲させる
部分を中央にすることにより、湾曲させるべき部分が容
易に判別できる。Means for Solving the Problems] incubator of the invention of claim 1, in order to achieve the above object, warmer body and, coercive
Electromagnetic induction coil that heats the container housed in the warmer body
And a heat insulating material mounted inside the warmer body, the heat insulating material being a metal sheet of aluminum for the housing.
A non- vacuum part having a thickness thinner than the vacuum part is partially formed on a plate-like member having a vacuum part in which an outer shell is formed and a vacuum layer is formed inside with a predetermined thickness. Is bent at the non-vacuum portion and mounted inside the warmer body. The plate-shaped member that forms the heat insulating material is made of aluminum metal.
Since the outer shell of the housing is formed with a sheet and the vacuum layer is formed inside, it must be hard and strong to some extent, but in a relatively thin non-vacuum part without a vacuum layer inside,
The bending process can be performed relatively easily, and the mounting property of the heat insulating material is improved. It is also possible to perform the bending by hand. Further, in the non-vacuum part without the vacuum layer, the deterioration of vacuum property due to breakage does not pose a problem. The invention of claim 2 is the warmer of the invention of claim 1, in which the non-vacuum portion is curvedly arranged on the front side of the warmer body, and the vacuum portions are arranged on both side surfaces of the warmer body. is there. If the front side of the warmer body has a rounded shape, by arranging the non-vacuum portion in a curved shape on this front side, it is easy to bend or bend it to attach it to the front side of the warmer body. As a result, the mountability of the heat insulating material is improved. According to a third aspect of the invention, in the warmer according to the first or second aspect of the invention, an air layer is formed between the non-vacuum portion and the outer shell or inner frame of the warmer body. The non-vacuum part has a problem that the heat insulating property is lower than the vacuum part,
As in the invention of claim 3, by forming an air layer between the non-vacuum portion and the outer shell or the inner frame of the warmer main body, a decrease in heat insulating property is compensated, and heat insulation by forming the non-vacuum portion is achieved. A large decrease in sex is prevented. According to a fourth aspect of the present invention, in the warmer according to any one of the first to third aspects, the non-vacuum portions are arranged at substantially left and right symmetrical positions at the center of the lateral width of the plate-shaped member, or left and right. The non-vacuum portion is formed in a substantially symmetrical shape. As a result, the position control of the non-vacuum portion can be performed with the center of the width as a reference, and the manufacturability is improved. Further, when the heat insulating material is attached to the body of the heat insulator, the directionality is minimized, so that the attaching work becomes easier. According to a fifth aspect of the present invention, in the warmer according to any one of the first to fourth aspects, the outer skin of the non-vacuum portion of the plate member is formed integrally with the outer skin that forms the vacuum portion. This eliminates the need for a separate member for forming the non-vacuum portion and facilitates the formation of the non-vacuum portion. In order to achieve the above-mentioned object, a warmer according to the invention of claim 6 is an electromagnetic device for heating a warmer main body and a container housed in this warmer main body.
An induction coil and a heat insulating material mounted inside the warmer body are provided, and the heat insulating material is a metal sheet of aluminum.
The outer shell of the housing is formed by, and the thick portion and the thin portion thinner than the thick portion are formed on the plate-shaped member in which the vacuum layer is formed with a predetermined thickness inside. The plate-shaped member is bent at the thin-walled portion and mounted in the warmer body. The plate-shaped member that forms the heat insulating material is made of aluminum metal.
Since the outer shell of the housing is formed with a sheet and the vacuum layer is formed inside, it must be hard and strong to some extent, but with a relatively thin thin part, bending can be done relatively easily. As a result, the mountability of the heat insulating material is improved, and the heat insulating material is less likely to be damaged during bending. It is also possible to perform the bending by hand. According to a seventh aspect of the present invention, in the warmer according to the sixth aspect of the invention, the thin wall portion is curvedly arranged on the front side of the warmer body, and the thick wall portions are arranged on both side surfaces of the warmer body. is there. If the front side of the warmer body has a rounded shape, by arranging the thin-walled part in a curved shape on this front side, it is possible to easily perform bending or bending for mounting on the front side of the warmer body. As a result, the mountability of the heat insulating material is improved. According to an eighth aspect of the present invention, in the warmer according to the sixth or seventh aspect of the invention, an air layer is formed between the thin portion and the outer shell or inner frame of the main body of the warmer. The thin portion has a problem that the heat insulating property is deteriorated as compared with the thicker portion, but as in the invention of claim 8, an air layer is formed between the thin portion and the outer shell or inner frame of the warmer body. As a result, the deterioration of the heat insulating property is compensated, and a large decrease in the heat insulating property due to the formation of the thin portion is prevented. According to a ninth aspect of the present invention, in the warmer according to any one of the sixth to eighth aspects, the thin-walled portions are arranged at substantially left and right symmetrical positions at the center of the lateral width of the plate-shaped member, or substantially right and left. The thin portion is formed in a symmetrical shape. As a result, the position of the thin portion can be controlled with the center of the width as a reference, and the manufacturability is improved. Further, when the heat insulating material is attached to the body of the heat insulator, the directionality is minimized, so that the attaching work becomes easier. According to a tenth aspect of the present invention, in the warmer according to any one of the sixth to ninth aspects, the outer skin of the thin portion of the plate member is formed integrally with the outer skin that forms the thick portion. This eliminates the need for a separate member for forming the thin portion, and facilitates the formation of the thin portion. In order to achieve the above-mentioned object, a warmer according to the invention of claim 11 is an electromagnetic induction for heating a warmer main body and a container housed in the warmer main body.
And guide coil, and a the warmer interior loaded plate-shaped insulation body, the insulation, A having a non-elastic properties
The outer shell of the housing is formed by a metal sheet of luminium, and the powder of the low thermal conductivity material is housed inside the outer shell to maintain the thickness of the housing, and the outer shell is hermetically sealed. The inside of the vacuum is vacuumed and the thickness is 8
The heat insulating material has a portion with a thickness of 8 mm or less, and is attached to the outside of the container to be heat-insulated in the body of the heat insulator while being curved at a vacuum portion having a thickness of 8 mm or less. In the case of elastic metal such as stainless steel, a strong force is required for bending, and it is difficult to bend it easily by hand. Further, even if it is once bent, the bending workability is deteriorated because the returning force is strong. On the other hand, aluminum, which is a kind of metal having inelastic properties, has a high work hardening property, and when it has the same thickness as the above-mentioned stainless steel, iron, titanium, copper, etc., it is easy to bend and Although it has a characteristic that it is difficult to return to its original shape when bent, if the vacuum portion is thick, the bending process becomes extremely difficult. However, if the thickness of the vacuum portion is 8 mm or less, it can be bent relatively easily, and bending can be easily performed. According to a twelfth aspect of the present invention, in the heat insulator according to the eleventh aspect of the invention, the degree of vacuum inside the heat insulating material is 0.5 Torr or more. If the degree of vacuum inside the heat insulating material is high, it is necessary to use an outer shell that can withstand pressure in order to maintain the shape of the housing, and as a result, the heat insulating material becomes hard and difficult to bend. . However, the thickness of the vacuum part is 8
In the case of mm or less, if the degree of vacuum is 0.5 Torr or more, bending can be performed relatively easily, and bending can be easily performed. According to a thirteenth aspect of the present invention, in the heat insulator according to the eleventh or twelfth aspect of the present invention, the heat insulating material has a thickness of 8 mm or more other than the curved portion in the vacuum portion. When the thickness of the vacuum portion is reduced to 8 mm or less, the bending process is easy, but the heat insulating property may be deteriorated. On the other hand, the heat insulating property can be improved by increasing the thickness of the vacuum portion that is not curved. Warmer of the invention of claim 14, in order to achieve the above object, a thermal insulation body, the coercive
Electromagnetic induction coil that heats the container housed in the warmer body
And a plate-shaped heat insulating material mounted inside the warmer body, the heat insulating material being an aluminum alloy having inelastic characteristics.
The outer shell of the housing is formed by the metal sheet of the aluminum alloy, and the powder of the low thermal conductivity material is housed inside the outer shell to maintain the thickness of the housing, and the outer shell is hermetically sealed. A groove is formed on the surface of the outer shell of the vacuum part that is evacuated and the inside is evacuated, and the groove is mainly attached to the outside of the container to be heat-insulated inside the heat retainer by bending the heat insulating material. Is. In the case of elastic metal such as stainless steel, a strong force is required for bending, and it is difficult to bend it easily by hand.
Further, even if it is once bent, the bending workability is deteriorated because the returning force is strong. On the other hand, aluminum, which is a kind of metal having inelastic properties, has a high work hardening property, and when it has the same thickness as the above-mentioned stainless steel, iron, titanium, copper, etc., it is easy to bend and Although it has a characteristic that it is difficult to return to its original shape when bent, if the vacuum portion is thick, the bending process becomes extremely difficult. However,
The groove portion can be easily formed due to the inelastic property, and by forming the groove portion, bending can be easily performed by using the groove portion as a trigger. According to a fifteenth aspect of the present invention, in the warmer according to the fourteenth aspect, the thickness of the vacuum portion is 8 mm or less. When the thickness of the vacuum part is relatively thin (about 8 mm or less), bending is relatively easy, but by forming a groove, bending is easier, and bending can be done by hand. Processing becomes extremely easy. The invention of claim 16 relates to claim 14
Alternatively, in the heat insulator of the fifteenth invention, the groove is formed on each of both surfaces of the outer shell of the portion to be curved. The outer shell surface of the vacuum portion may be provided with a groove on only one side, but if the groove is deepened to facilitate bending, warping may occur. On the other hand, if grooves are provided on both sides, warpage can be prevented. Along with this, the front and back sides disappear in the bending direction during bending, and the handleability is improved. In order to achieve the above-mentioned object, a warmer according to the invention of claim 17 has a warmer body and a warmer body.
An electromagnetic induction coil for heating a container to be housed and a plate-shaped heat insulating material mounted inside the body of the heat insulator are provided. The heat insulating material is a metal sheet of aluminum having an inelastic property and is provided outside the housing. A shell is formed, a powder made of a low thermal conductivity material is housed inside the outer shell to maintain the thickness of the housing, the outer shell is closed to create a vacuum, and the inside is vacuumed. The divided vacuum part is divided into a plurality of parts, and the thickness of a predetermined vacuum part of the divided vacuum parts is set to 8 mm or less, and the heat insulating material is formed on the outside of the heat-insulated container in the main body of the warmer. Is mounted by being bent in a vacuum portion of 8 mm or less. By dividing the vacuum portion in this way, the thickness of the vacuum portion is 8
It is possible to easily form a section in which the bending is relatively easy with a thickness of mm or less and a section in which the vacuum section is thickened to improve the heat insulating property, by controlling the powder filling amount. By thinning the thickness of only the part that needs to be curved, it is easy to identify the divided thin part, and it is easy to determine which vacuum part should be curved when it is attached to the warmer body. It can be discriminated and can be easily bent by hand to attach it to the body of the warmer. Warmer of the invention of claim 18, in order to achieve the above object, a thermal insulation body, the coercive
Electromagnetic induction coil that heats the container housed in the warmer body
And a plate-shaped heat insulating material mounted inside the warmer body, the heat insulating material being an aluminum alloy having inelastic characteristics.
The outer shell of the housing is formed by the metal sheet of the aluminum alloy, and the powder of the low thermal conductivity material is housed inside the outer shell to maintain the thickness of the housing, and the outer shell is hermetically sealed. The inside of the warmer body is kept warm by forming a vacuum and dividing the inside vacuum into a plurality of vacuum parts, and forming a groove on the outer shell surface of a predetermined vacuum part of the partitioned vacuum parts. The groove is mainly attached to the outside of the container by bending the heat insulating material. By partitioning the vacuum part in this way, a part that has a groove part on the outer shell surface and can be bent relatively easily,
It is possible to easily form a partition from a portion where the groove is not provided in order to improve heat insulation by controlling the powder filling amount. Further, by providing the groove portion only in the portion that needs to be curved, it becomes easy to identify the divided portion having the groove portion, and which vacuum portion should be curved at the time of attachment to the warmer main body It can be discriminated into and can be easily bent by hand and attached to the body of the warmer. According to a nineteenth aspect of the present invention, in the heat insulator of the eighteenth aspect of the invention, the vacuum portion is divided into three vacuum portions in the entire heat insulating material, and the central vacuum portion is a curved portion. By thus centering the curved portion, the portion to be curved can be easily identified.
【発明の実施形態】以下、本発明の保温器の第１実施例
について図１および図２を参照しながら説明する。な
お、本実施例の保温器は、保温機能付き炊飯器である保
温釜に適用されたものである。図１において、１は保温
器本体で、この保温器本体１は、その外殻をなす外枠２
と、この外枠２内に設けられた容器状の内枠３とを備え
ている。これら外枠２と内枠３との間には隙間４が設け
られている。内枠３は、米および水を収容する被保温容
器である容器５が内部に着脱自在に収納される容器収納
部をなすものである。そして、内枠３の水平面への投影
形状がほぼ円形状になっているのに対して、外枠２の前
面部2aは、内枠３にほぼ平行に沿って水平面への投影形
状がほぼ半円形状をなすように湾曲している。一方、外
枠２の左右両側面部2bはほぼ平面状になっている。さら
に、外枠２と内枠３との間の隙間４は保温器本体１の後
部において大きくなっており、この後部の隙間４に制御
基板６やコードリール７が配設されている。また、前記
内枠３には、前記容器５を加熱する電磁誘導コイル８な
どの加熱手段（図示していない）が設けられている。さ
らに、前記保温器本体２の上側には、容器５を上側から
覆う蓋体（図示していない）が回動開閉自在に設けられ
ている。そして、前記保温器本体１内で外枠２と内枠３
との間の隙間４には、容器５または内枠３の外側周囲形
状に沿ってその保温性を向上させる板状の断熱材11が装
着されている。この断熱材11は、外枠２の前面部2aおよ
び左右両側面部2bの内面に沿って配設されているが、外
枠２と断熱材11との間およびこの断熱材11と内枠３との
間にはそれぞれ隙間が設けられていて空気層12，13が形
成されている。断熱材11は、外殻14内に真空層15を形成
した板状部材からなっている。さらに、外殻14は、外皮
である外袋16とこの外袋16の内面に重なった内袋17との
二重構造になっている。外袋16は、非弾性特性を有する
アルミニウム箔などの金属シートを主とし、内面にＰＰ
（ポリプロピレン）、外面にＰＡ（ポリアミド）などの
樹脂をコーティングしてなる。外袋16に内装された内袋
17は、通気性を有する不織布などからなり、低熱伝導率
材である粒径５〜20μm程度のシリカ粉末18を内部に収
容してある。そして、外袋16の内部は、密閉されて10To
rr以下程度の真空状態の真空層15を形成している。前記
シリカ粉末18は、筐体をなす外殻14の厚さを所定の厚さ
に保持するものであり、真空層15のある部分（真空部2
1）で断熱材11の厚さt1は５〜20mm程度になっている。
また、断熱材11の一部には、真空層15のない非真空部22
が形成されている。この非真空部22では、外殻14の内側
の部分と外側の部分とが熱溶着などの手段により接合さ
れており、非真空部22の厚さt2は非真空部22よりも薄く
なっている。真空部21および非真空部22に渡って前記外
殻14は一体的に形成されている。非真空部22は、断熱材
11の横幅の中心で左右のほぼ対称位置に配設されてい
る。これにより、真空部21は、複数の区画部分つまり２
つの区画部分に分割されている。なお、熱溶着部は、非
真空部22の全面であってもよいし、真空部21に近接する
部分的な部位のみでもよい。そして、非真空部22は、保
温器本体１内においてその前面側に位置しており、外枠
２の前面部2aの形状に沿って湾曲されている。一方、両
真空部21は、外枠２の左右両側面部2bに沿っており、ほ
ぼ平板状になっている。すなわち、断熱材11は、主に非
真空部22が湾曲されて保温器本体１内に装着されてい
る。また、前記空気層12，13をなす断熱材11と外枠２お
よび内枠３との間の隙間は、特に非真空部22において大
きくなっている。つぎに、前記の構成についてその作用
を説明する。使用時には、電磁誘導コイルへの通電など
により容器５が加熱され、炊飯が行われるとともに、こ
の炊飯後の保温が行われる。この保温時、断熱材11が容
器５を外側から覆っていることにより、容器５から外部
へ熱が逃げにくく、保温性が向上し、省エネルギーを達
成できる。ところで、本実施例のように容器５が丸形状
の場合、保温器本体１を小型にするには、保温器本体１
の形状を容器５に沿ったものとすることが有効である。
また、保温器本体１の後方部に各種制御基板６や蓋体の
軸支部やコードリール７などの各種部品を配設した場
合、保温器本体１の前方部は容器５の形状に沿って湾曲
した形状になる一方、保温器本体１の背面部は前記各種
部品を収容するためにほぼ平坦形状になる。したがっ
て、真空層15がなく薄くて湾曲加工が容易な非真空部22
を前面側に配設し、それほど湾曲させなくて済む両側面
側に真空部21を配設すれば、製造上断熱材11を保温器本
体１内に容易に装着できる。なお、各種制御基板や蓋体
の軸支部や基板の回路部品冷却用放熱器などを保温器本
体内の前方に配設した場合、保温器本体の外殻である外
枠と容器または容器収納部である内枠との間に、断熱材
を収納するスペースが確保しにくいことがある。このよ
うな場合でも、材厚が薄い非真空部22を保温器本体１の
前面側に配設すれば、有効にスペースを利用することが
できる。前述のように内部に真空層15を形成した断熱材
11は、その形状保持のために外殻14を強固で硬いものに
する必要があり、湾曲加工は本来容易ではない。また、
無理に湾曲させるとストレスにより破損が生じ、真空性
が損なわれるおそれがある。これに対して、本保温器で
は、断熱材11に非真空部22を設けたことにより、この非
真空部22では比較的容易に湾曲加工が可能になるため、
上記の問題を解消できる。しかも、真空層15がない非真
空部22では、破損による真空性の低下も問題とならな
い。また、手作業でも容易に湾曲させることが可能にな
る。しかも、曲がりの大きい保温器本体１の前面側に非
真空部22を配設することにより、この非真空部22の湾曲
あるいは折り曲げ加工しやすさの効果を有効に発揮する
ことができる。また、非真空部22は真空部21に比べて断
熱性が低下する欠点があるが、非真空部22と保温器本体
１の外枠２および内枠３との間に空気層12，13を形成し
たので、この空気層12，13により断熱性の低下を補うこ
とができ、非真空部22を形成したことによる大幅な断熱
性の低下を防止できる。また、非真空部22は、断熱材11
の横幅の中心で左右のほぼ対称位置に配設されているの
で、非真空部22の位置管理が前記中心を基準として行う
ことができ、製造性が向上する。また、保温器本体１へ
の断熱材11の装着時に極力方向性がなくなることによ
り、装着作業が容易になる。さらに、非真空部22の外殻
14と真空部21を形成する外殻14と一体に形成したので、
非真空部22を形成するための別部材が不要となり、非真
空部22の形成が容易になる。つぎに、本発明の保温器の
第２実施例について、図３および図４を参照しながら説
明する。なお、保温器本体１の構成は前記第１実施例と
同様なので、説明を省略する。保温器本体１内で外枠２
と内枠３との間の隙間４には、容器５または内枠３の外
側周囲形状に沿ってその保温性を向上させる板状の断熱
材11が装着されている。この断熱材11は、外枠２の前面
部2aおよび左右両側面部2bの内面に沿って配設されてい
るが、外枠２と断熱材11との間およびこの断熱材11と内
枠３との間にはそれぞれ隙間が設けられていて空気層1
2，13が形成されている。断熱材11は、外殻14内に真空
層13を形成した板状部材からなっている。さらに、外殻
14は、外皮である外袋16とこの外袋16の内面に重なった
内袋17との二重構造になっている。外袋16は、非弾性特
性を有する厚さが200μm以下、好ましくは100μm以下、
例えば10〜20μm程度のアルミニウム箔などの金属シー
トを主とし、内面に厚さが30〜80μm程度のＰＰ（ポリ
プロピレン）、外面に厚さが10〜20μm程度のＰＡ（ポ
リアミド）などの樹脂をコーティングしてなる。外袋16
に内装された内袋17は、通気性を有する厚さが100〜200
μm程度の不織布などからなり、低熱伝導率材である粒
径５μm程度のシリカ粉末18を内部に収容してある。そ
して、外袋16の内部は、密閉されて10Torr以下程度、例
えば0.5〜10Torrの真空状態の真空層15を形成してい
る。前記シリカ粉末18は、筐体をなす外殻14の厚さを所
定の厚さに保持するものであり、真空層15のある部分
（真空部）で断熱材11の厚さは５〜20mm程度になってい
る。また、断熱材11は、真空部としての平板状の厚肉部
26と、この厚肉部26の厚さt3よりも厚さt4が薄い平板状
の薄肉部27とを有している。この薄肉部27の厚さt4は、
好ましくは８mm以下、例えば３〜７mmとする。一方、厚
肉部26の厚さt3は、８mm以上、例えば10〜15mm程度が好
ましい。また、前記薄肉部27は、その両側の厚肉部26と
隣接する部位で、外殻14の内側の部分と外側の部分とが
熱溶着などの手段により接合されている。この熱溶着部
28では、断熱材11の厚さは外袋16および内袋17のみの厚
さになっている。そして、前記厚肉部26の内部は真空層
15になっている。一方、前記薄肉部27の内部は非真空で
もよいが、真空状態に形成することが望ましい。また、
厚肉部26および薄肉部27に渡って前記外殻14は一体的に
形成されている。薄肉部27は、断熱材11の横幅の中心で
左右のほぼ対称位置に配設されている。これにより、厚
肉部26は、複数の区画部分つまり２つあるいは３つの区
画の部分に分割されている。そして、薄肉部27は、保温
器本体１内においてその前面側に位置しており、外枠２
の前面部2aの形状に沿って湾曲されている。一方、両厚
肉部26は、外枠２の左右両側面部2bに沿っており、ほぼ
平板状になっている。すなわち、断熱材11は、主に薄肉
部27が湾曲されて保温器本体１内に装着されている。ま
た、前記空気層12，13をなす断熱材11と外枠２および内
枠３との間の隙間は、特に薄肉部27において大きくなっ
ている。前述のように、一つの断熱材11において、厚さ
の異なる真空部すなわち厚肉部26および薄肉部27を形成
することは、前記熱溶着などの手段によって断熱材11内
の真空層15を複数の部屋に分割することにより実現でき
る。そして、各部屋毎に内部に充填するシリカ粉末18の
量を管理することにより、真空部の厚さを設定できる。
つまり、厚さを厚くする部分ではシリカ粉末18の量を多
くして筐体厚が厚くなり、厚さを薄くする部分ではシリ
カ粉末18の量を少なくして筐体厚が薄くなるようにすれ
ばよい。前記部屋の分割は、内袋17と外袋16とを組み付
ける前に予め内袋17単体の状態で行えばよい。これによ
り、例えば断熱材11の中央部の薄肉部27の厚さt4が４〜
６mm、両側の厚肉部26の厚さt3が８〜10mmといったよう
に、３つの厚さが異なる真空部を一体に備えた断熱材11
を構成できる。本第２実施例においても、前記第１実施
例と同様の作用効果が得られる。すなわち、保温器本体
１の前面が湾曲した丸みのある形状になっているのに対
して、厚肉部26よりも薄くて湾曲加工が容易な薄肉部27
を前面側に配設し、それほど湾曲させなくて済む両側面
側に厚肉部26を配設すれば、製造上断熱材11を保温器本
体１内に容易に装着できる。また、各種制御基板や蓋体
の軸支部や基板の回路部品冷却用放熱器などを保温器本
体内の前方に配設した場合、保温器本体の外殻である外
枠と容器または容器収納部である内枠との間に、断熱材
を収納するスペースが確保しにくいことがあるが、この
ような場合でも、材厚が薄い薄肉部27を保温器本体１の
前面側に配設すれば、有効にスペースを利用することが
できる。前述のように内部に真空層15を形成した断熱材
11は、その形状保持のために外殻14を強固で硬いものに
する必要があり、湾曲加工は本来容易ではない。また、
無理に湾曲させるとストレスにより破損が生じ、真空性
が損なわれるおそれがある。これに対して、本保温器で
は、断熱材11に薄肉部27を設けたことにより、この薄肉
部27では比較的容易に湾曲加工が可能になるため、上記
の問題を解消でき、断熱材の破損による真空性の低下も
防止できる。また、手作業でも容易に湾曲させることが
可能になる。しかも、曲がりの大きい保温器本体１の前
面側に薄肉部27を配設することにより、この薄肉部27の
湾曲あるいは折り曲げ加工しやすさの効果を有効に発揮
することができる。また、薄肉部27は厚肉部26に比べて
断熱性が低下する欠点があるが、薄肉部27と保温器本体
１の外枠２および内枠３との間に空気層12，13を形成し
たので、この空気層12，13により断熱性の低下を補うこ
とができ、薄肉部27を形成したことによる大幅な断熱性
の低下を防止できる。また、薄肉部27は、断熱材11の横
幅の中心で左右のほぼ対称位置に配設されているので、
薄肉部27の位置管理が前記中心を基準として行うことが
でき、製造性が向上する。また、保温器本体１への断熱
材11の装着時に極力方向性がなくなることにより、装着
作業が容易になる。さらに、薄肉部27の外殻14と厚肉部
26を形成する外殻14と一体に形成したので、薄肉部27を
形成するための別部材が不要となり、薄肉部27の形成が
容易になる。また、前記第１実施例と第２実施例とを比
較すると、第１実施例では、非真空部22内に真空層15が
ないことにより、この非真空部22の湾曲加工がより容易
にできる利点があり、一方、第２実施例では、薄肉部27
内にも真空層15を形成することにより、断熱性をより向
上できる利点がある。ところで、ステンレスのように弾
力性のある金属の場合、湾曲加工に強い力が必要にな
り、手では容易に曲げにくい。また、いったん曲げた場
合でも、元に戻る力が強いため、湾曲加工性が悪くな
る。これに対して、非弾性特性を有する金属の一種であ
るアルミニウムは加工硬化性が高く、前記ステンレス、
鉄、チタン、銅などに比べ、同一の厚さの場合、曲げ加
工がしやすく、またいったん曲げると元に戻りにくい特
性がある反面、断熱材11の真空部の厚さが厚いと、曲げ
加工が極めて困難になる。しかしながら、真空部である
薄肉部27の厚さt4が８mm以下であれば、この薄肉部27を
比較的容易に曲げることができ、湾曲加工が容易にでき
る。また、真空部の厚さを８mm以下に薄くすると、湾曲
加工しやすくなる反面、断熱性が悪くなる場合がある
が、湾曲加工しない部分の真空部である厚肉部26の厚さ
t3は８mm以上に厚くすることにより、断熱性を向上させ
ることができる。さらに、断熱材11の内部の真空度が高
いと、外殻２がなす筐体の形状を保つために、圧力に抗
することができる外殻２とすることが必要となり、その
結果、断熱材11が硬くなり、曲げ加工しにくくなる。し
かしながら、前述のように真空部である薄肉部27の厚さ
t4が８mm以下の場合、0.5〜10Torr程度の真空度であれ
ば、断熱材11が過度に硬くならず、比較的容易に曲げる
ことができ、湾曲加工が容易にできる。また、断熱材11
において、内袋17の熱溶着などの手段により真空部を複
数の部分に区画する構成としたので、真空部の厚さが８
mm以下で比較的簡単に曲げ加工ができる部分すなわち薄
肉部27と、断熱性を高めるために真空部を厚くした部分
すなわち厚肉部26とを区画形成することが、シリカ粉末
18の充填量の管理で容易に行うことができる。そして、
湾曲加工が必要な部分のみ厚さの薄い薄肉部27にするこ
とにより、区画されている薄肉部27の識別が容易になっ
て、保温器本体への装着時にどの真空部を湾曲させれば
よいかがすぐに判別でき、手加工で容易に湾曲させて保
温器本体11に装着できる。さらに、断熱材11全体で、真
空部を１つの薄肉部27と２つの厚肉部26との３つの真空
部に分割区画し、湾曲加工すべき薄肉部27を中央に配し
たので、断熱材11において湾曲加工すべき部分を容易に
判別できる。つぎに、本発明の保温器の第３実施例につ
いて、図５および図６、図７、図８を参照しながら説明
する。なお、本第３実施例は前記第２実施例とほぼ同様
の構成を有しているので、前記第２実施例と対応する部
分には同一符号を付してその説明を省略し、異なる点を
主に説明する。本第３実施例は、断熱材11における湾曲
加工する部分である薄肉部27の外袋16の表面に複数の溝
部31を形成したものである。これらの溝部31は、上下方
向すなわち湾曲の軸方向に延びている。また、溝部31の
寸法は、例えば幅ｗが0.1〜20mm程度、深さｄが0.01〜
３mm程度、溝部31間のピッチｐが３〜30mm程度などであ
り、被装着部の形態などに応じて任意に設定すればよ
い。さらに、本第３実施例においては、溝部31を薄肉部
27の両面にそれぞれ形成している。また、溝部31は、断
熱材11の製造後に後加工で形成すればよい。例えば、所
定形状の型を用いて薄肉部27に型押しを行うことによ
り、溝部31を形成することができる。そして、溝部31を
主として薄肉部27を湾曲させて、断熱材11を保温器本体
１内に装着する。前述のように、断熱材11の外袋16の材
料にはアルミニウムを用いているが、非弾性特性を有す
る金属の一種であるアルミニウムは加工硬化性が高く、
前記ステンレス、鉄、チタン、銅などに比べ、同一の厚
さの場合、曲げ加工がしやすく、またいったん曲げると
元に戻りにくい特性がある反面、真空部の厚さが厚い
と、曲げ加工が極めて困難になる。しかしながら、非弾
性特性のために溝部31の形成は容易である。そして、断
熱材11における湾曲加工する部分である薄肉部27の表面
に複数の溝部31を形成しておくことにより、この溝部31
をきっかけとして容易に曲げ加工を行うことができる。
手でも簡単に薄肉部27を湾曲させることができる。ま
た、内部が真空になった真空部である薄肉部27の厚さt4
を８mm以下と比較的薄くすれば、もとより曲げ加工がし
やすいが、前述のように溝部31を形成することによりさ
らに容易に曲げ加工することができ、湾曲加工が極めて
容易になる。さらに、真空部の厚さが８mm以上と厚い場
合でも、溝部31がなければ湾曲加工が困難であるのに対
して、溝部31を形成することにより湾曲加工を比較的容
易にできる。薄肉部27などの真空部の外殻14の表面に
は、片面にのみ溝部31を設けてもよいが、片面にのみ形
成した場合、湾曲加工を容易にするために溝部31を深く
すると、断熱材11に反りが生じる場合がある。これに対
して、両面に溝部31を設ければ、反りが生じないように
できる。これとともに、湾曲加工時の曲げ方向に表裏が
なくなり、取り扱い性がよくなる。さらに、前述のよう
に断熱材11の真空部が１つの薄肉部27と２つの厚肉部26
とに区画されているのに対して、湾曲加工が必要な薄肉
部27にのみ溝部31を設けることにより、区画されていて
溝部31を有する部分の識別が容易になり、保温器本体１
への装着時にどの真空部を湾曲させればよいかがすぐに
判別できる。したがって、保温器本体１への断熱材11の
装着性がよりいっそう向上する。なお、本発明は、前記
実施例に限定されるものではなく、種々の変形実施が可
能である。例えば、前記各実施例では、断熱材11の非真
空部22または薄肉部27と保温器本体１の外枠２および内
枠３との間にそれぞれ空気層12，13を形成したが、非真
空部22または薄肉部27と外枠２との間あるいは非真空部
22または薄肉部27と内枠３との間のいずれか一方にのみ
空気層12，13を形成してもよい。また、前記各実施例で
は、断熱材11において非真空部22または薄肉部27を１つ
のみ形成したが、複数形成してもよい。複数形成する場
合でも、断熱材11において左右にほぼ対称形状に非真空
部22または薄肉部27を形成することにより、製造に際し
ての位置管理上有利である。さらに、前記実施例では、
保温器として保温機能付き炊飯器を例に採って説明した
が、本発明は、炊飯器以外にも電気ポットなどの適宜の
保温器に適用できる。BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a warmer according to the present invention will be described below with reference to FIGS. 1 and 2. The heat retaining device of this embodiment is applied to a heat retaining pot which is a rice cooker with a heat retaining function. In FIG. 1, reference numeral 1 is a body of the warmer, and the body of the warmer 1 is an outer frame 2 forming an outer shell thereof.
And a container-shaped inner frame 3 provided in the outer frame 2. A gap 4 is provided between the outer frame 2 and the inner frame 3. The inner frame 3 serves as a container housing portion in which a container 5, which is a container to be kept warm for containing rice and water, is detachably housed. The inner frame 3 has a substantially circular projected shape on the horizontal plane, while the front surface 2a of the outer frame 2 has a substantially half-shaped projected shape on the horizontal plane substantially parallel to the inner frame 3. It is curved so as to form a circular shape. On the other hand, the left and right side surface portions 2b of the outer frame 2 are substantially flat. Further, the gap 4 between the outer frame 2 and the inner frame 3 is large in the rear part of the warmer body 1, and the control board 6 and the cord reel 7 are arranged in the rear gap 4. Further, the inner frame 3 is provided with heating means (not shown) such as an electromagnetic induction coil 8 for heating the container 5. Further, a lid (not shown) that covers the container 5 from the upper side is provided on the upper side of the warmer body 2 so as to be rotatable and openable. Then, the outer frame 2 and the inner frame 3 are provided in the warmer body 1.
A plate-shaped heat insulating material 11 is attached to the gap 4 between the container 5 and the inner frame 3 so as to improve the heat retaining property along the outer peripheral shape. The heat insulating material 11 is arranged along the inner surfaces of the front surface portion 2a and the left and right side surface portions 2b of the outer frame 2, and is disposed between the outer frame 2 and the heat insulating material 11 and between the heat insulating material 11 and the inner frame 3. Air gaps 12 and 13 are formed between the gaps, respectively. The heat insulating material 11 is a plate-shaped member having a vacuum layer 15 formed in the outer shell 14. Further, the outer shell 14 has a double structure of an outer bag 16 which is an outer skin, and an inner bag 17 which overlaps the inner surface of the outer bag 16. The outer bag 16 is mainly made of a metal sheet such as an aluminum foil having an inelastic property, and has a PP inner surface.
(Polypropylene), the outer surface of which is coated with a resin such as PA (polyamide). Inner bag inside the outer bag 16
Reference numeral 17 is made of a breathable non-woven fabric or the like, and contains therein a silica powder 18 having a particle diameter of about 5 to 20 μm, which is a low thermal conductivity material. And the inside of the outer bag 16 is hermetically sealed to 10To
The vacuum layer 15 is formed in a vacuum state of about rr or less. The silica powder 18 holds the thickness of the outer shell 14 forming the housing at a predetermined thickness, and the portion having the vacuum layer 15 (the vacuum portion 2
In 1), the thickness t1 of the heat insulating material 11 is about 5 to 20 mm.
In addition, a part of the heat insulating material 11 has a non-vacuum portion 22 without the vacuum layer 15.
Are formed. In this non-vacuum portion 22, the inner portion and the outer portion of the outer shell 14 are joined by means such as heat welding, and the thickness t2 of the non-vacuum portion 22 is smaller than that of the non-vacuum portion 22. . The outer shell 14 is integrally formed across the vacuum portion 21 and the non-vacuum portion 22. The non-vacuum part 22 is a heat insulating material.
They are arranged at the left and right substantially symmetrical positions at the center of the width of 11. As a result, the vacuum portion 21 is divided into a plurality of partition portions, that is, 2
It is divided into two compartments. The heat-welded portion may be the entire surface of the non-vacuum portion 22 or only a partial portion near the vacuum portion 21. The non-vacuum portion 22 is located on the front surface side in the warmer body 1, and is curved along the shape of the front surface portion 2a of the outer frame 2. On the other hand, both vacuum portions 21 extend along the left and right side surface portions 2b of the outer frame 2 and are substantially flat. That is, in the heat insulating material 11, the non-vacuum portion 22 is mainly curved and mounted in the heat insulator body 1. The gap between the heat insulating material 11 forming the air layers 12 and 13 and the outer frame 2 and the inner frame 3 is particularly large in the non-vacuum portion 22. Next, the operation of the above configuration will be described. At the time of use, the container 5 is heated by energizing the electromagnetic induction coil or the like to cook rice, and the heat is maintained after the rice is cooked. During this heat retention, the heat insulating material 11 covers the container 5 from the outside, so that heat is unlikely to escape from the container 5 to the outside, heat retention is improved, and energy saving can be achieved. By the way, in the case where the container 5 has a round shape as in this embodiment, in order to make the warmer body 1 small, the warmer body 1
It is effective to make the shape of the shape along the container 5.
Also, when various parts such as the control board 6, the shaft support of the lid, and the cord reel 7 are arranged in the rear part of the warmer body 1, the front part of the warmer body 1 is curved along the shape of the container 5. On the other hand, the rear surface of the warmer main body 1 has a substantially flat shape to accommodate the various components. Therefore, the non-vacuum portion 22 without the vacuum layer 15 is thin and can be easily bent.
If the heat insulating material 11 is disposed on the front side and the vacuum portions 21 are disposed on both side surfaces that do not need to be curved so much, the heat insulating material 11 can be easily mounted in the warmer body 1 for manufacturing. When the control board, the shaft support of the lid, and the radiator for cooling the circuit components of the board are placed in front of the main body of the warmer, the outer frame that is the outer shell of the warmer and the container or container storage part It may be difficult to secure a space for housing the heat insulating material between the inner frame and the inner frame. Even in such a case, if the non-vacuum portion 22 having a small material thickness is disposed on the front surface side of the warmer body 1, the space can be effectively used. A heat insulating material with the vacuum layer 15 formed inside as described above.
In the case of 11, the outer shell 14 needs to be strong and hard in order to retain its shape, and bending is not originally easy. Also,
If it is forcibly bent, stress may cause damage, which may impair the vacuum property. On the other hand, in this heat insulator, since the non-vacuum portion 22 is provided in the heat insulating material 11, since the non-vacuum portion 22 can be bent relatively easily,
The above problems can be solved. Moreover, in the non-vacuum portion 22 where the vacuum layer 15 is not present, deterioration in vacuum property due to breakage does not pose a problem. Further, it becomes possible to easily bend it by hand. Moreover, by disposing the non-vacuum portion 22 on the front surface side of the warmer main body 1 having a large bend, it is possible to effectively exhibit the effect of bending or bending the non-vacuum portion 22. Further, the non-vacuum portion 22 has a defect that the heat insulating property is lower than that of the vacuum portion 21, but the air layers 12 and 13 are provided between the non-vacuum portion 22 and the outer frame 2 and the inner frame 3 of the warmer body 1. Since the air layers 12 and 13 are formed, it is possible to compensate for the decrease in the heat insulating property, and it is possible to prevent a large decrease in the heat insulating property due to the formation of the non-vacuum portion 22. In addition, the non-vacuum portion 22 includes the heat insulating material 11
Since the non-vacuum portions 22 are arranged at substantially left and right symmetrical positions with respect to the center of the lateral width, the position control of the non-vacuum portion 22 can be performed with the center as a reference, and the manufacturability is improved. In addition, since the directionality is eliminated as much as possible when the heat insulating material 11 is attached to the warmer body 1, the attachment work is facilitated. Furthermore, the outer shell of the non-vacuum part 22
Since it is formed integrally with the outer shell 14 that forms 14 and the vacuum portion 21,
A separate member for forming the non-vacuum portion 22 is unnecessary, and the non-vacuum portion 22 is easily formed. Next, a second embodiment of the heat insulator of the present invention will be described with reference to FIGS. 3 and 4. Since the structure of the warmer body 1 is the same as that of the first embodiment, its explanation is omitted. Outer frame 2 inside the warmer body 1
In the gap 4 between the inner frame 3 and the inner frame 3, a plate-shaped heat insulating material 11 is attached along the outer peripheral shape of the container 5 or the inner frame 3 to improve the heat retention. The heat insulating material 11 is arranged along the inner surfaces of the front surface portion 2a and the left and right side surface portions 2b of the outer frame 2, and is disposed between the outer frame 2 and the heat insulating material 11 and between the heat insulating material 11 and the inner frame 3. There is a gap between each and the air layer 1
2 and 13 are formed. The heat insulating material 11 is a plate-shaped member having a vacuum layer 13 formed in an outer shell 14. In addition, the outer shell
The outer bag 14 has a double structure including an outer bag 16 which is an outer skin and an inner bag 17 which overlaps the inner surface of the outer bag 16. The outer bag 16 has a thickness having an inelastic property of 200 μm or less, preferably 100 μm or less,
For example, mainly metal sheets such as aluminum foil with a thickness of 10 to 20 μm, coated with PP (polypropylene) with a thickness of 30 to 80 μm on the inner surface and resin such as PA (polyamide) with a thickness of 10 to 20 μm on the outer surface. I will do it. Outer bag 16
The inner bag 17 installed inside has a breathable thickness of 100 to 200
A silica powder 18 having a particle diameter of about 5 μm, which is a low thermal conductivity material, is housed inside, and is made of a non-woven fabric of about μm. The inside of the outer bag 16 is hermetically sealed to form a vacuum layer 15 in a vacuum state of about 10 Torr or less, for example, 0.5 to 10 Torr. The silica powder 18 is for keeping the thickness of the outer shell 14 forming the housing at a predetermined thickness, and the thickness of the heat insulating material 11 is about 5 to 20 mm at a portion (vacuum portion) where the vacuum layer 15 is present. It has become. In addition, the heat insulating material 11 is a flat plate-shaped thick part as a vacuum part.
26 and a flat thin portion 27 having a thickness t4 smaller than the thickness t3 of the thick portion 26. The thickness t4 of the thin portion 27 is
It is preferably 8 mm or less, for example 3 to 7 mm. On the other hand, the thickness t3 of the thick portion 26 is preferably 8 mm or more, for example, about 10 to 15 mm. The thin portion 27 is adjacent to the thick portions 26 on both sides of the thin portion 27, and the inner portion and the outer portion of the outer shell 14 are joined by means such as heat welding. This heat weld
In 28, the thickness of the heat insulating material 11 is only the thickness of the outer bag 16 and the inner bag 17. The inside of the thick portion 26 is a vacuum layer.
It is 15. On the other hand, the inside of the thin portion 27 may be non-vacuum, but is preferably formed in a vacuum state. Also,
The outer shell 14 is integrally formed over the thick portion 26 and the thin portion 27. The thin portions 27 are arranged at left and right substantially symmetrical positions at the center of the width of the heat insulating material 11. As a result, the thick portion 26 is divided into a plurality of compartments, that is, two or three compartments. The thin portion 27 is located on the front side of the warmer main body 1, and the outer frame 2
Is curved along the shape of the front surface portion 2a. On the other hand, both thick-walled portions 26 extend along the left and right side surface portions 2b of the outer frame 2 and have a substantially flat plate shape. That is, the heat insulating material 11 is mounted in the heat insulator main body 1 mainly with the thin portion 27 being curved. Further, the gap between the heat insulating material 11 forming the air layers 12, 13 and the outer frame 2 and the inner frame 3 is particularly large in the thin portion 27. As described above, forming the vacuum portions having different thicknesses, that is, the thick portion 26 and the thin portion 27, in one heat insulating material 11 is to form a plurality of vacuum layers 15 in the heat insulating material 11 by means such as the heat welding. It can be realized by dividing the room. Then, the thickness of the vacuum portion can be set by controlling the amount of silica powder 18 to be filled in each room.
In other words, in the portion where the thickness is increased, the amount of silica powder 18 is increased to increase the thickness of the housing, and in the portion where the thickness is reduced, the amount of silica powder 18 is decreased to reduce the thickness of the housing. Good. The room may be divided in a state of the inner bag 17 alone before the inner bag 17 and the outer bag 16 are assembled. Thereby, for example, the thickness t4 of the thin portion 27 at the center of the heat insulating material 11 is 4 to
6 mm, the thickness t3 of the thick portions 26 on both sides is 8 to 10 mm, and the heat insulating material 11 integrally includes three vacuum portions having different thicknesses.
Can be configured. Also in the second embodiment, the same operational effects as those of the first embodiment can be obtained. That is, while the front surface of the warmer body 1 has a curved and rounded shape, the thin portion 27 that is thinner than the thick portion 26 and is easy to be curved
If the heat insulating material 11 is disposed on the front side and the thick portions 26 are disposed on both side surfaces that do not need to be bent so much, the heat insulating material 11 can be easily mounted in the warmer main body 1 in manufacturing. Also, when various control boards, shaft support parts of lids and radiators for cooling circuit parts of the boards are arranged in front of the main body of the warmer, the outer frame that is the outer shell of the warmer and the container or container storage part It may be difficult to secure a space for accommodating the heat insulating material between the inner frame and the inner frame, but even in such a case, if the thin portion 27 having a small material thickness is disposed on the front surface side of the warmer body 1. , Can effectively utilize the space. A heat insulating material with the vacuum layer 15 formed inside as described above.
In the case of 11, the outer shell 14 needs to be strong and hard in order to retain its shape, and bending is not originally easy. Also,
If it is forcibly bent, stress may cause damage, which may impair the vacuum property. On the other hand, in this warmer, since the heat insulating material 11 is provided with the thin wall portion 27, the thin wall portion 27 can be bent relatively easily. It is also possible to prevent deterioration of vacuum property due to breakage. Further, it becomes possible to easily bend it by hand. Moreover, by arranging the thin portion 27 on the front side of the warmer main body 1 having a large bend, it is possible to effectively exert the effect of bending or bending the thin portion 27. Further, although the thin portion 27 has a drawback that the heat insulating property is lower than that of the thick portion 26, the air layers 12 and 13 are formed between the thin portion 27 and the outer frame 2 and the inner frame 3 of the warmer body 1. Therefore, the air layers 12 and 13 can compensate for the decrease in the heat insulating property, and a large decrease in the heat insulating property due to the formation of the thin portion 27 can be prevented. In addition, since the thin portion 27 is arranged at substantially left and right symmetrical positions at the center of the width of the heat insulating material 11,
Position control of the thin portion 27 can be performed with the center as the reference, and the manufacturability is improved. In addition, since the directionality is eliminated as much as possible when the heat insulating material 11 is attached to the warmer body 1, the attachment work is facilitated. Further, the outer shell 14 and the thick wall portion of the thin wall portion 27
Since it is formed integrally with the outer shell 14 forming the thin wall portion 26, a separate member for forming the thin wall portion 27 is unnecessary, and the thin wall portion 27 can be formed easily. Further, comparing the first embodiment and the second embodiment, in the first embodiment, since the non-vacuum portion 22 does not have the vacuum layer 15, the non-vacuum portion 22 can be bent more easily. There is an advantage, on the other hand, in the second embodiment, the thin portion 27
By forming the vacuum layer 15 inside, there is an advantage that the heat insulating property can be further improved. By the way, in the case of an elastic metal such as stainless steel, a strong force is required for bending, and it is difficult to bend it easily by hand. Further, even if it is once bent, the bending workability is deteriorated because the returning force is strong. On the other hand, aluminum, which is a kind of metal having inelastic properties, has a high work hardening property, and the stainless steel,
Compared with iron, titanium, copper, etc., if the thickness is the same, it is easier to bend, and once bent, it is difficult to return to its original shape. Becomes extremely difficult. However, if the thickness t4 of the thin portion 27 which is the vacuum portion is 8 mm or less, the thin portion 27 can be bent relatively easily, and the bending process can be easily performed. When the thickness of the vacuum portion is thinned to 8 mm or less, the curved portion may be easily bent, but the heat insulation may be deteriorated. However, the thickness of the thick portion 26 which is the vacuum portion of the portion which is not curved.
The heat insulation can be improved by increasing t3 to 8 mm or more. Further, when the degree of vacuum inside the heat insulating material 11 is high, it is necessary to make the outer shell 2 capable of resisting pressure in order to maintain the shape of the casing formed by the outer shell 2. As a result, the heat insulating material 11 becomes hard and difficult to bend. However, as described above, the thickness of the thin portion 27 that is the vacuum portion
When t4 is 8 mm or less, when the degree of vacuum is about 0.5 to 10 Torr, the heat insulating material 11 does not become excessively hard, can be bent relatively easily, and can be bent easily. Insulation 11
In the above, since the vacuum portion is divided into a plurality of portions by means such as heat welding of the inner bag 17, the thickness of the vacuum portion is 8
It is possible to partition and form a portion that can be bent relatively easily in mm or less, that is, a thin portion 27, and a portion where the vacuum portion is thickened to improve heat insulation, that is, a thick portion 26.
It can be easily done by controlling the filling amount of 18. And
By making the thin portion 27 that is thin only in the portion that needs to be curved, the divided thin portion 27 can be easily identified, and which vacuum portion should be curved when attached to the warmer body. The squid can be immediately discriminated and can be easily bent by hand to be attached to the warmer body 11. Further, in the heat insulating material 11 as a whole, the vacuum portion is divided into three vacuum portions, one thin wall portion 27 and two thick wall portions 26, and the thin wall portion 27 to be curved is arranged in the center. In 11, the portion to be curved can be easily identified. Next, a third embodiment of the heat retaining device of the present invention will be described with reference to FIGS. 5, 6, 7 and 8. Since the third embodiment has substantially the same configuration as the second embodiment, parts corresponding to those of the second embodiment are designated by the same reference numerals, and the description thereof will be omitted. Will be mainly explained. In the third embodiment, a plurality of groove portions 31 are formed on the surface of the outer bag 16 of the thin portion 27 which is a portion of the heat insulating material 11 to be curved. These groove portions 31 extend in the vertical direction, that is, the curved axial direction. The groove 31 has a width w of about 0.1 to 20 mm and a depth d of about 0.01 to 20 mm.
It is about 3 mm, the pitch p between the groove portions 31 is about 3 to 30 mm, etc., and may be set arbitrarily according to the form of the mounted portion. Further, in the third embodiment, the groove 31 is formed in the thin wall portion.
It is formed on both sides of 27 respectively. Further, the groove 31 may be formed by post-processing after manufacturing the heat insulating material 11. For example, the groove 31 can be formed by impressing the thin portion 27 with a die having a predetermined shape. Then, the heat insulating material 11 is attached to the inside of the warmer main body 1 by bending the groove 31 mainly in the thin portion 27. As described above, aluminum is used as the material of the outer bag 16 of the heat insulating material 11, but aluminum, which is a kind of metal having inelastic properties, has high work hardening property,
Compared to stainless steel, iron, titanium, copper, etc., if the thickness is the same, it is easier to bend, and once bent, it is difficult to return to its original shape. It will be extremely difficult. However, it is easy to form the groove 31 due to the inelastic property. Then, by forming a plurality of groove portions 31 on the surface of the thin portion 27 which is a portion of the heat insulating material 11 to be curved, the groove portion 31 is formed.
Bending can be easily performed by using as a trigger.
The thin portion 27 can be easily bent even by hand. In addition, the thickness t4 of the thin portion 27, which is a vacuum portion in which the inside has a vacuum,
If the thickness is made relatively thin as 8 mm or less, the bending process is easy to perform, but by forming the groove portion 31 as described above, the bending process can be performed more easily, and the bending process becomes extremely easy. Further, even if the thickness of the vacuum portion is as thick as 8 mm or more, it is difficult to perform the bending process without the groove portion 31, whereas forming the groove portion 31 allows the bending process to be relatively easy. On the surface of the outer shell 14 of the vacuum portion such as the thin portion 27, the groove portion 31 may be provided only on one surface, but when it is formed on only one surface, if the groove portion 31 is deepened to facilitate bending, heat insulation The material 11 may be warped. On the other hand, if the groove portions 31 are provided on both surfaces, warpage can be prevented. Along with this, the front and back sides disappear in the bending direction during bending, and the handleability is improved. Further, as described above, the vacuum portion of the heat insulating material 11 has one thin portion 27 and two thick portions 26.
By providing the groove portion 31 only in the thin wall portion 27 that needs to be curved, the portion having the groove portion 31 can be easily identified, and the warmer body 1
It is possible to immediately determine which vacuum portion should be curved when it is attached to the. Therefore, the mountability of the heat insulating material 11 to the warmer body 1 is further improved. The present invention is not limited to the above embodiment, and various modifications can be made. For example, in each of the above-described embodiments, the air layers 12 and 13 are formed between the non-vacuum portion 22 or the thin portion 27 of the heat insulating material 11 and the outer frame 2 and the inner frame 3 of the warmer body 1, respectively. Between the portion 22 or the thin portion 27 and the outer frame 2 or a non-vacuum portion
The air layers 12 and 13 may be formed only on one of 22 or the thin portion 27 and the inner frame 3. Further, in each of the above-described embodiments, only one non-vacuum portion 22 or thin portion 27 is formed in the heat insulating material 11, but a plurality of non-vacuum portions 22 or thin portions 27 may be formed. Even when forming a plurality, the non-vacuum portion 22 or the thin portion 27 is formed in the heat insulating material 11 in a substantially symmetrical shape to the left and right, which is advantageous in position management during manufacturing. Further, in the above embodiment,
Although the rice cooker with a heat retaining function has been described as an example of the heat retainer, the present invention can be applied to an appropriate heat retainer such as an electric pot other than the rice cooker.
【発明の効果】請求項１の発明の保温器によれば、断熱
材は、アルミニウムの金属シートで筐体の外殻を形成
し、所定の厚さで真空層を内部に形成した真空部を有す
る板状部材に、厚さが真空部よりも薄い非真空部を部分
的に形成し、この板状部材を非真空部で湾曲させて保温
器本体内に装着してなるので、断熱材をなす板状部材の
湾曲加工が容易にでき、保温器本体内への断熱材の装着
性が向上する。また、湾曲加工時に断熱材がストレスに
よって破損することにより真空性が低下することを防止
できる。さらに、請求項２の発明の保温器によれば、保
温器本体の前面側に非真空部を湾曲させて配設し、保温
器本体の両側面部に真空部を配設したので、保温器本体
の前面側が丸みのある形状になっている場合でも、断熱
材の湾曲加工が容易にでき、保温器本体内への断熱材の
装着性が向上する。また、請求項３の発明の保温器によ
れば、非真空部と保温器本体の外殻または内枠との間に
空気層を形成したので、非真空部における断熱性の低下
を空気層により補うことができ、断熱性を向上できる。
また、請求項４の発明の保温器によれば、板状部材の横
幅の中心で、左右のほぼ対称位置に非真空部を配設する
か、あるいは、左右にほぼ対称形状に非真空部を形成し
たので、非真空部の位置管理が横幅の中心を基準として
管理できるようになることにより、製造性が向上する。
また、断熱材を保温器本体に装着するとき方向性が極力
なくなることにより、装着作業もより容易になる。ま
た、請求項５の発明の保温器によれば、板状部材におけ
る非真空部の外皮は、真空部を形成する外皮と一体に形
成したので、非真空部を形成するための別部材が不要と
なることにより、非真空部を容易に形成できる。請求項
６の発明の保温器によれば、断熱材は、アルミニウムの
金属シートで筐体の外殻を形成し、所定の厚さで真空層
を内部に形成した板状部材に、厚肉部と、厚さがこの厚
肉部よりも薄い薄肉部とを形成してなり、この板状部材
を薄肉部で湾曲させて保温器本体内に装着してなるの
で、断熱材をなす板状部材の湾曲加工が容易にでき、保
温器本体内への断熱材の装着性が向上する。また、湾曲
加工時に断熱材の外表面に加わるストレスが低減される
ことにより、このストレスによる断熱材の破損を防止で
き、真空性の低下を防止できる。さらに、請求項７の発
明の保温器によれば、保温器本体の前面側に薄肉部を湾
曲させて配設し、保温器本体の両側面部に厚肉部を配設
したので、保温器本体の前面側が丸みのある形状になっ
ている場合でも、断熱材の湾曲加工が容易にでき、保温
器本体内への断熱材の装着性が向上する。また、請求項
８の発明の保温器によれば、薄肉部と保温器本体の外殻
または内枠との間に空気層を形成したので、非真空部に
おける断熱性の低下を空気層により補うことができ、断
熱性を向上できる。また、請求項９の発明の保温器によ
れば、板状部材の横幅の中心で、左右のほぼ対称位置に
薄肉部を配設するか、あるいは、左右にほぼ対称形状に
薄肉部を形成したので、非真空部の位置管理が横幅の中
心を基準として管理できるようになることにより、製造
性が向上する。また、断熱材を保温器本体に装着すると
き方向性が極力なくなることにより、装着作業もより容
易になる。また、請求項１０の発明の保温器によれば、
板状部材における薄肉部の外皮は、厚肉部を形成する外
皮と一体に形成したので、非真空部を形成するための別
部材が不要となることにより、非真空部を容易に形成で
きる。請求項１１の発明の保温器によれば、断熱材は、
非弾性特性を有するアルミニウムの金属シートで筐体の
外殻を形成し、この外殻の内部に低熱伝導率材からなる
粉末を収容して前記筐体の厚さを保持し、前記外殻を密
閉して内部を真空にしてなるとともに、内部が真空にな
った真空部に厚さが８mm以下の部分を有し、保温器本体
内の被保温容器の外側に断熱材を前記厚さが８mm以下の
真空部で湾曲させて装着したので、この断熱材の外殻の
湾曲加工が容易にでき、保温器本体内への断熱材の装着
性が向上する。また、湾曲加工時に断熱材の外表面に加
わるストレスが低減されることにより、このストレスに
よる断熱材の破損を防止でき、真空性の低下を防止でき
る。さらに、請求項１２の発明の保温器によれば、断熱
材の内部の真空度を0.5Torr以上にしたので、断熱材が
過度に硬くならず、したがって、湾曲加工をより容易に
できる。また、請求項１３の発明の保温器によれば、断
熱材は、真空部における湾曲した部分以外の厚さを８mm
以上にしたので、湾曲加工を難しくすることなく、断熱
性をいっそう向上させることができる。請求項１４の発
明の保温器によれば、断熱材は、非弾性特性を有するア
ルミニウムの金属シートで筐体の外殻を形成し、この外
殻の内部に低熱伝導率材からなる粉末を収容して筐体の
厚さを保持し、外殻を密閉して内部を真空にしてなると
ともに、内部が真空になった真空部の外殻表面に溝部を
形成し、保温器本体内の被保温容器の外側に溝部を主と
して断熱材を湾曲させて装着したので、この断熱材の外
殻の湾曲加工が容易にでき、保温器本体内への断熱材の
装着性が向上する。また、湾曲加工時に断熱材の外表面
に加わるストレスが低減されることにより、このストレ
スによる断熱材の破損を防止でき、真空性の低下を防止
できる。さらに、請求項１５の発明の保温器によれば、
真空部の厚さを８mm以下としたので、湾曲加工が極めて
容易にできる。また、請求項１６の発明の保温器によれ
ば、溝部は、湾曲加工される部分の外殻の両面にそれぞ
れ形成したので、反りが生じにくく、また、湾曲加工時
の曲げ方向に表裏がなくなることにより、取り扱い性が
向上する。請求項１７の発明の保温器によれば、断熱材
は、非弾性特性を有するアルミニウムの金属シートで筐
体の外殻を形成し、この外殻の内部に低熱伝導率材から
なる粉末を収容して前記筐体の厚さを保持し、外殻を密
閉して内部を真空にしてなるとともに、内部が真空にな
った真空部を複数に区画し、この区画された真空部のう
ち所定の真空部の厚さを８mm以下にし、保温器本体内の
被保温容器の外側に断熱材を厚さが８mm以下の真空部で
湾曲させて装着したので、どの真空部を湾曲させればよ
いかの判別も容易で、断熱材の外殻の湾曲加工が容易に
でき、保温器本体内への断熱材の装着性が向上する。ま
た、湾曲加工時に断熱材の外表面に加わるストレスが低
減されることにより、このストレスによる断熱材の破損
を防止でき、真空性の低下を防止できる。請求項１８の
発明の保温器によれば、断熱材は、非弾性特性を有する
アルミニウムの金属シートで筐体の外殻を形成し、この
外殻の内部に低熱伝導率材からなる粉末を収容して筐体
の厚さを保持し、外殻を密閉して内部を真空にしてなる
とともに、内部が真空になった真空部を複数に区画し、
この区画された真空部のうち所定の真空部の外殻表面に
溝部を形成し、保温器本体内の被保温容器の外側に溝部
を主として断熱材を湾曲させて装着したので、どの真空
部を湾曲させればよいかの判別も容易で、この断熱材の
外殻の湾曲加工が容易にでき、保温器本体内への断熱材
の装着性が向上する。また、湾曲加工時に断熱材の外表
面に加わるストレスが低減されることにより、このスト
レスによる断熱材の破損を防止でき、真空性の低下を防
止できる。さらに、請求項１９の発明の保温器によれ
ば、断熱材全体で真空部を３つの真空部に区画し、中央
の真空部を湾曲加工する部分としたので、湾曲させるべ
き部分の判別がよりいっそう容易になる。According to the heat retainer of the first aspect of the invention, the heat insulating material forms the outer shell of the housing with a metal sheet of aluminum.
Then, a non-vacuum portion having a thickness smaller than the vacuum portion is partially formed on a plate-shaped member having a vacuum portion inside which a vacuum layer is formed with a predetermined thickness, and the plate-shaped member is formed by the non-vacuum portion. Since it is bent and mounted in the warmer main body, the plate-shaped member forming the heat insulating material can be easily bent, and the mounting property of the heat insulating material in the warmer main body is improved. Further, it is possible to prevent the vacuum property from being deteriorated due to damage of the heat insulating material due to stress during bending. Further, according to the warmer of the invention of claim 2, since the non-vacuum portion is curvedly arranged on the front side of the warmer body, and the vacuum portions are arranged on both side portions of the warmer body, the warmer body is provided. Even if the front surface of the heat insulating material has a rounded shape, the heat insulating material can be easily curved, and the heat insulating material can be easily attached to the inside of the warmer body. Further, according to the heat insulator of the invention of claim 3, since the air layer is formed between the non-vacuum portion and the outer shell or the inner frame of the heat insulator main body, the decrease in the heat insulating property in the non-vacuum portion is caused by the air layer. Can be supplemented and the heat insulation can be improved.
Further, according to the heat insulator of the invention of claim 4, the non-vacuum portions are arranged at substantially left and right symmetrical positions at the center of the lateral width of the plate-shaped member, or the non-vacuum portions are horizontally symmetrically formed. Since it is formed, the position control of the non-vacuum portion can be performed with reference to the center of the lateral width, so that the manufacturability is improved.
Further, when the heat insulating material is attached to the body of the heat insulator, the directionality is minimized, so that the attaching work becomes easier. Further, according to the heat insulator of the invention of claim 5, since the outer skin of the non-vacuum portion of the plate-shaped member is formed integrally with the outer skin forming the vacuum portion, a separate member for forming the non-vacuum portion is unnecessary. Thus, the non-vacuum portion can be easily formed. According to the heat insulator of the invention of claim 6, the heat insulating material is made of aluminum.
An outer shell of the housing is formed of a metal sheet, and a thick portion and a thin portion having a thickness thinner than the thick portion are formed on a plate-shaped member having a vacuum layer formed therein with a predetermined thickness. Since this plate-shaped member is curved in a thin part and installed in the heat insulator body, the plate-shaped member forming the heat insulating material can be easily bent, and the heat insulation material can be installed in the heat insulator body. The property is improved. Further, by reducing the stress applied to the outer surface of the heat insulating material during bending, it is possible to prevent damage to the heat insulating material due to this stress, and prevent deterioration of vacuum properties. Further, according to the heat insulator of the invention of claim 7, since the thin wall portion is curvedly arranged on the front side of the warmer body, and the thick wall portions are arranged on both side surfaces of the warmer body, the warmer body is provided. Even if the front surface of the heat insulating material has a rounded shape, the heat insulating material can be easily curved, and the heat insulating material can be easily attached to the inside of the warmer body. Further, according to the heat insulator of the invention of claim 8, since the air layer is formed between the thin portion and the outer shell or the inner frame of the heat insulator main body, the air layer compensates for the deterioration of the heat insulating property in the non-vacuum portion. It is possible to improve heat insulation. Further, according to the heat insulator of the invention of claim 9, the thin-walled portions are arranged at the left and right substantially symmetrical positions at the center of the lateral width of the plate-shaped member, or the thin-walled portions are formed substantially left and right symmetrically. Therefore, it becomes possible to manage the position of the non-vacuum portion with reference to the center of the lateral width, thereby improving manufacturability. Further, when the heat insulating material is attached to the body of the heat insulator, the directionality is minimized, so that the attaching work becomes easier. Further, according to the heat insulator of the invention of claim 10,
Since the outer skin of the thin portion of the plate member is formed integrally with the outer skin of the thick portion, a separate member for forming the non-vacuum portion is not required, and thus the non-vacuum portion can be easily formed. According to the heat insulator of the invention of claim 11, the heat insulating material is:
The outer shell of the housing is formed of a metal sheet of aluminum having inelastic characteristics, and the powder of the low thermal conductivity material is housed inside the outer shell to maintain the thickness of the housing, The inside is vacuum and the inside has a vacuum, and the vacuum part has a thickness of 8mm or less. Since it is bent and attached in the following vacuum part, the outer shell of this heat insulating material can be easily bent, and the ease of attaching the heat insulating material to the inside of the warmer body is improved. Further, by reducing the stress applied to the outer surface of the heat insulating material during bending, it is possible to prevent damage to the heat insulating material due to this stress, and prevent deterioration of vacuum properties. Further, according to the heat insulator of the twelfth aspect of the invention, the degree of vacuum inside the heat insulating material is set to 0.5 Torr or more, so that the heat insulating material does not become excessively hard, and therefore the bending process can be made easier. According to the heat insulator of the invention of claim 13, the heat insulating material has a thickness other than the curved portion of the vacuum portion of 8 mm.
As described above, the heat insulating property can be further improved without making the bending process difficult. According to warmer of the invention of claim 14, insulation, A having a non-elastic properties
The outer shell of the housing is formed of a sheet of aluminum, and the powder of low thermal conductivity material is stored inside the outer shell to maintain the thickness of the housing, and the outer shell is sealed to create a vacuum inside. In addition, a groove was formed on the surface of the outer shell of the vacuum part where the inside became a vacuum, and the groove was attached to the outside of the heat-insulated container in the main body of the warmer mainly by bending the heat insulating material. The outer shell can be easily curved, and the heat insulating material can be easily attached to the inside of the warmer. Further, by reducing the stress applied to the outer surface of the heat insulating material during bending, it is possible to prevent damage to the heat insulating material due to this stress, and prevent deterioration of vacuum properties. Further, according to the heat insulator of the invention of claim 15,
Since the thickness of the vacuum portion is 8 mm or less, the bending process can be extremely easily performed. According to the heat insulator of the sixteenth aspect of the invention, since the groove is formed on both sides of the outer shell of the portion to be curved, warpage is unlikely to occur, and the front and back sides do not exist in the bending direction during bending. This improves the handleability. According to the heat insulator of the invention of claim 17, the heat insulating material forms the outer shell of the housing with a metal sheet of aluminum having an inelastic property, and the powder made of the low thermal conductivity material is housed inside the outer shell. Then, the thickness of the housing is maintained, the outer shell is hermetically closed to make a vacuum inside, and a plurality of vacuum portions having a vacuum inside are divided into a plurality of predetermined vacuum portions. Since the thickness of the vacuum part is set to 8 mm or less and the heat insulating material is bent and attached to the outside of the container to be heat-insulated inside the warmer body with the vacuum part having a thickness of 8 mm or less, which vacuum part should be bent? Can be easily discriminated, and the outer shell of the heat insulating material can be easily curved, so that the mounting property of the heat insulating material in the body of the heat insulator is improved. Further, by reducing the stress applied to the outer surface of the heat insulating material during bending, it is possible to prevent damage to the heat insulating material due to this stress, and prevent deterioration of vacuum properties. According to the heat insulator of the invention of claim 18, the heat insulating material has an inelastic property.
The outer shell of the housing is formed by a metal sheet of aluminum, the powder of the low thermal conductivity material is stored inside the outer shell to maintain the thickness of the housing, and the outer shell is sealed to create a vacuum inside. In addition, the inside of the vacuum part is divided into multiple vacuum parts,
Since a groove is formed on the outer shell surface of a predetermined vacuum part of the partitioned vacuum part and the groove part is attached to the outside of the heat-reserved container in the body of the warmer mainly by bending the heat insulating material, which vacuum part is It is easy to determine whether or not it should be curved, and the outer shell of this heat insulating material can be easily curved, and the heat insulating material can be easily attached to the inside of the warmer body. Further, by reducing the stress applied to the outer surface of the heat insulating material during bending, it is possible to prevent damage to the heat insulating material due to this stress, and prevent deterioration of vacuum properties. Further, according to the heat insulator of the invention of claim 19, since the vacuum portion is divided into three vacuum portions in the entire heat insulating material and the central vacuum portion is the portion to be curved, the portion to be curved can be discriminated more. It will be even easier.
【図１】本発明の保温器の第１実施例を示す水平断面図
である。FIG. 1 is a horizontal sectional view showing a first embodiment of a warmer according to the present invention.
【図２】同上断熱材の断面図である。FIG. 2 is a sectional view of the heat insulating material.
【図３】本発明の保温器の第２実施例を示す水平断面図
である。FIG. 3 is a horizontal sectional view showing a second embodiment of the heat insulator of the present invention.
【図４】同上断熱材の断面図である。FIG. 4 is a sectional view of the heat insulating material.
【図５】本発明の保温器の第３実施例を示すもので、断
熱材の平面図である。FIG. 5 shows a third embodiment of the heat insulator of the present invention and is a plan view of a heat insulating material.
【図６】同上断熱材の側面図である。FIG. 6 is a side view of the above heat insulating material.
【図７】同上断熱材の一部の拡大平面図である。FIG. 7 is an enlarged plan view of a part of the above heat insulating material.
【図８】同上湾曲加工後の断熱材の平面図である。FIG. 8 is a plan view of the heat insulating material after being curved as above.
１ 保温器本体 ２ 外枠（外殻） ３ 内枠 11 断熱材 12 空気層 13 空気層 14 外殻 16 外袋（外皮） 15 真空層 18 シリカ粉末(粉末) 21 真空部 22 非真空部 26 厚肉部 27 薄肉部 31 溝部 1 Incubator body 2 Outer frame (outer shell) 3 inner frame 11 insulation 12 air layer 13 air layer 14 outer shell 16 outer bag (outer skin) 15 vacuum layer 18 Silica powder (powder) 21 Vacuum section 22 Non-vacuum part 26 Thick part 27 Thin section 31 groove
フロントページの続き (56)参考文献 特開 平７−19392（ＪＰ，Ａ) 特開 昭62−68425（ＪＰ，Ａ) 特開 平７−96566（ＪＰ，Ａ) 実開 昭60−168418（ＪＰ，Ｕ) 実開 昭60−167892（ＪＰ，Ｕ) 実開 昭61−167129（ＪＰ，Ｕ) 特表 平11−503774（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 27/21 101 Continuation of front page (56) Reference JP-A-7-19392 (JP, A) JP-A-62-68425 (JP, A) JP-A-7-96566 (JP, A) Actual development Sho-60-168418 (JP , U) Actually open 60-167892 (JP, U) Actually open 61-167129 (JP, U) Special table 11-503774 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB) (Name) A47J 27/21 101
Claims (19)
れる容器を加熱する電磁誘導コイルと、前記保温器本体
の内部に装着された断熱材とを備え、この断熱材は、ア
ルミニウムの金属シートで筐体の外殻を形成し、所定の
厚さで真空層を内部に形成した真空部を有する板状部材
に、厚さが前記真空部よりも薄い非真空部を部分的に形
成し、この板状部材を前記非真空部で湾曲させて前記保
温器本体内に装着してなることを特徴とする保温器。1. A warmer body and a warmer body housed in the warmer body.
It is an electromagnetic induction coil to heat the container, and an interior mounted thermal insulation material of the insulation body, the insulation, A
A non-vacuum part, which is thinner than the vacuum part, is partially formed on a plate-like member having a vacuum part in which the outer shell of the housing is formed of a metal sheet of aluminum and a vacuum layer is formed inside with a predetermined thickness. And a plate-shaped member that is bent at the non-vacuum portion and is mounted inside the warmer body.
せて配設し、保温器本体の両側面部に真空部を配設した
ことを特徴とする請求項１記載の保温器。2. The warmer according to claim 1, wherein the non-vacuum portion is curvedly arranged on the front side of the warmer body, and the vacuum portions are arranged on both side surfaces of the warmer body.
との間に空気層を形成したことを特徴とする請求項１ま
たは２記載の保温器。3. The warmer according to claim 1, wherein an air layer is formed between the non-vacuum portion and the outer shell or inner frame of the warmer main body.
称位置に非真空部を配設するか、あるいは、左右にほぼ
対称形状に非真空部を形成したことを特徴とする請求項
１〜３のいずれか１項に記載の保温器。4. The non-vacuum portion is disposed in left and right substantially symmetrical positions at the center of the lateral width of the plate member, or the left and right non-vacuum portions are formed in substantially symmetrical shapes. The warmer according to any one of 1 to 3.
空部を形成する外皮と一体に形成してなることを特徴と
する請求項１〜４のいずれか１項に記載の保温器。5. The warmer according to claim 1, wherein the outer skin of the non-vacuum portion of the plate-shaped member is formed integrally with the outer skin that forms the vacuum portion.
れる容器を加熱する電磁誘導コイルと、前記保温器本体
の内部に装着された断熱材とを備え、この断熱材は、ア
ルミニウムの金属シートで筐体の外殻を形成し、所定の
厚さで真空層を内部に形成した板状部材に、厚肉部と、
厚さがこの厚肉部よりも薄い薄肉部とを形成してなり、
この板状部材を前記薄肉部で湾曲させて前記保温器本体
内に装着してなることを特徴とする保温器。6. A warmer body and a warmer body housed in the warmer body.
It is an electromagnetic induction coil to heat the container, and an interior mounted thermal insulation material of the insulation body, the insulation, A
The outer shell of the housing is formed of a metal sheet of luminium, and a thick member is formed on a plate-shaped member in which a vacuum layer is formed inside with a predetermined thickness.
Forming a thin part whose thickness is thinner than this thick part,
A warmer characterized in that the plate-shaped member is curved at the thin portion and mounted inside the warmer body.
て配設し、保温器本体の両側面部に厚肉部を配設したこ
とを特徴とする請求項６記載の保温器。7. The warmer according to claim 6, wherein a thin-walled portion is curvedly arranged on the front side of the warmer main body, and thick-walled portions are arranged on both side surfaces of the warmer main body.
の間に空気層を形成したことを特徴とする請求項６また
は７記載の保温器。8. The warmer according to claim 6, wherein an air layer is formed between the thin portion and the outer shell or inner frame of the warmer main body.
称位置に薄肉部を配設するか、あるいは、左右にほぼ対
称形状に薄肉部を形成したことを特徴とする請求項６〜
８のいずれか１項に記載の保温器。9. The thin-walled portion is disposed at substantially left-right symmetrical positions at the center of the lateral width of the plate member, or the thin-walled portion is formed left-right substantially symmetrically.
Incubator according to any one of 8.
肉部を形成する外皮と一体に形成してなることを特徴と
する請求項６〜９のいずれか１項に記載の保温器。10. The warmer according to claim 6, wherein the outer skin of the thin portion of the plate member is integrally formed with the outer skin of the thick portion.
される容器を加熱する電磁誘導コイルと、前記保温器本
体の内部に装着された板状の断熱材とを備え、この断熱
材は、非弾性特性を有するアルミニウムの金属シートで
筐体の外殻を形成し、この外殻の内部に低熱伝導率材か
らなる粉末を収容して前記筐体の厚さを保持し、前記外
殻を密閉して内部を真空にしてなるとともに、内部が真
空になった真空部に厚さが８mm以下の部分を有し、前記
保温器本体内の被保温容器の外側に前記断熱材を前記厚
さが８mm以下の真空部で湾曲させて装着したことを特徴
とする保温器。11. A warmer body and a housing for the warmer body
The heat insulating material is provided with an electromagnetic induction coil for heating the container, and a plate-shaped heat insulating material mounted inside the warmer body. The heat insulating material is an aluminum metal sheet having an inelastic property and is an outer shell of the housing. The outer shell is filled with a powder of a low thermal conductivity material to keep the thickness of the housing, the outer shell is closed to form a vacuum, and the inside is evacuated. The vacuum part having a thickness of 8 mm or less is formed, and the heat insulating material is attached to the outside of the heat-insulated container in the body of the heat insulator while being curved at the vacuum part having a thickness of 8 mm or less. And incubator.
にしたことを特徴とする請求項１１記載の保温器。12. The heat insulator according to claim 11, wherein the degree of vacuum inside the heat insulating material is 0.5 Torr or more.
分以外の厚さを８mm以上にしたことを特徴とする請求項
１１または１２記載の保温器。13. The heat insulator according to claim 11 or 12, wherein the heat insulating material has a thickness other than a curved portion of the vacuum portion of 8 mm or more.
される容器を加熱する電磁誘導コイルと、前記保温器本
体の内部に装着された板状の断熱材とを備え、この断熱
材は、非弾性特性を有するアルミニウムの金属シートで
筐体の外殻を形成し、この外殻の内部に低熱伝導率材か
らなる粉末を収容して前記筐体の厚さを保持し、前記外
殻を密閉して内部を真空にしてなるとともに、内部が真
空になった真空部の外殻表面に溝部を形成し、前記保温
器本体内の被保温容器の外側に前記溝部を主として前記
断熱材を湾曲させて装着したことを特徴とする保温器。14. A warmer body and a housing for the warmer body
The heat insulating material is provided with an electromagnetic induction coil for heating the container, and a plate-shaped heat insulating material mounted inside the warmer body. The heat insulating material is an aluminum metal sheet having an inelastic property and is an outer shell of the housing. The outer shell is filled with a powder of a low thermal conductivity material to keep the thickness of the housing, the outer shell is closed to form a vacuum, and the inside is evacuated. A groove is formed on the outer shell surface of the vacuumed portion, and the groove is mainly attached to the outside of the container to be heat-insulated in the body of the heat insulator by bending the heat insulating material.
特徴とする請求項１４記載の保温器。15. The warmer according to claim 14, wherein the vacuum portion has a thickness of 8 mm or less.
両面にそれぞれ形成したことを特徴とする請求項１４ま
たは１５記載の保温器。16. The warmer according to claim 14 or 15, wherein the groove is formed on both sides of the outer shell of the portion to be curved.
される容器を加熱する電磁誘導コイルと、前記保温器本
体の内部に装着された板状の断熱材とを備え、この断熱
材は、非弾性特性を有するアルミニウムの金属シートで
筐体の外殻を形成し、この外殻の内部に低熱伝導率材か
らなる粉末を収容して前記筐体の厚さを保持し、前記外
殻を密閉して内部を真空にしてなるとともに、内部が真
空になった真空部を複数に区画し、この区画された真空
部のうち所定の真空部の厚さを８mm以下にし、前記保温
器本体内の被保温容器の外側に前記断熱材を前記厚さが
８mm以下の真空部で湾曲させて装着したことを特徴とす
る保温器。17. A warmer body and a housing for the warmer body
The heat insulating material is provided with an electromagnetic induction coil for heating the container, and a plate-shaped heat insulating material mounted inside the warmer body. The heat insulating material is an aluminum metal sheet having an inelastic property and is an outer shell of the housing. The outer shell is filled with a powder of a low thermal conductivity material to keep the thickness of the housing, the outer shell is closed to form a vacuum, and the inside is evacuated. The divided vacuum portion is divided into a plurality of parts, and the thickness of a predetermined vacuum portion of the divided vacuum portion is set to 8 mm or less. A warmer characterized by being bent and attached in a vacuum section of 8 mm or less.
される容器を加熱する電磁誘導コイルと、前記保温器本
体の内部に装着された板状の断熱材とを備え、この断熱
材は、非弾性特性を有するアルミニウムの金属シートで
筐体の外殻を形成し、この外殻の内部に低熱伝導率材か
らなる粉末を収容して前記筐体の厚さを保持し、前記外
殻を密閉して内部を真空にしてなるとともに、内部が真
空になった真空部を複数に区画し、この区画された真空
部のうち所定の真空部の外殻表面に溝部を形成し、前記
保温器本体内の被保温容器の外側に前記溝部を主として
前記断熱材を湾曲させて装着したことを特徴とする保温
器。18. A warmer body and a housing for the warmer body
The heat insulating material is provided with an electromagnetic induction coil for heating the container, and a plate-shaped heat insulating material mounted inside the warmer body. The heat insulating material is an aluminum metal sheet having an inelastic property and is an outer shell of the housing. The outer shell is filled with a powder of a low thermal conductivity material to keep the thickness of the housing, the outer shell is closed to form a vacuum, and the inside is evacuated. The divided vacuum part is divided into a plurality of parts, and a groove part is formed on the outer shell surface of a predetermined vacuum part of the divided vacuum part. A warmer that is made by bending the material.
区画し、中央の真空部を湾曲加工する部分としたことを
特徴とする請求項１８記載の保温器。19. The heat insulator according to claim 18, wherein the vacuum portion is divided into three vacuum portions in the entire heat insulating material, and the central vacuum portion is a portion to be curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16090799A JP3486896B2 (en) | 1999-06-08 | 1999-06-08 | Warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16090799A JP3486896B2 (en) | 1999-06-08 | 1999-06-08 | Warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000342449A JP2000342449A (en) | 2000-12-12 |
| JP3486896B2 true JP3486896B2 (en) | 2004-01-13 |
Family
ID=15724922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16090799A Expired - Fee Related JP3486896B2 (en) | 1999-06-08 | 1999-06-08 | Warmer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3486896B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009224880A (en) * | 2008-03-13 | 2009-10-01 | Kaga Electronics Co Ltd | Stand for apparatus |
-
1999
- 1999-06-08 JP JP16090799A patent/JP3486896B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000342449A (en) | 2000-12-12 |
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