JP2006239316A

JP2006239316A - Cooking device and cooking method

Info

Publication number: JP2006239316A
Application number: JP2005062934A
Authority: JP
Inventors: Hiroshi Hatano; 洋幡野; Takeshi Machino; 健町野; Yuji Otani; 祐次大谷
Original assignee: Tanico Corp
Current assignee: Tanico Corp
Priority date: 2005-03-07
Filing date: 2005-03-07
Publication date: 2006-09-14

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooking device capable of improving safety without the risk of damaging a pot or the risk that a cook gets injured or burned, eliminating irregularities of heating, shortening cooking time, eliminating the risk that a heat transfer medium is mixed in an object to be cooked, and securing the safety of the object to be cooked even if it is mixed. <P>SOLUTION: The cooking device is provided with a pot 2 in a double structure constituted of an inner pot 3 and an outer pot 4, the heat transfer medium 22 and air 100 are enclosed in a tightly sealed space 10 between the inner pot 3 and the outer pot 4, a heating means 5 for heating the outer pot 4 is provided, and a negative pressure means 8 for turning the inside of the tightly sealed space 10 to a negative pressure is provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は調理装置及び調理方法に関し、詳しくは内釜と外釜とを備え、内釜と外釜間の密閉された空間に熱媒体を封入し、加熱手段で外釜を加熱することにより、熱媒体を介して内釜を加熱して、内釜に投入した被調理物を加熱する調理装置及び調理方法に関する。 The present invention relates to a cooking apparatus and a cooking method, and more specifically, includes an inner pot and an outer pot, encloses a heat medium in a sealed space between the inner pot and the outer pot, and heats the outer pot with a heating means. The present invention relates to a cooking apparatus and a cooking method for heating an inner pot via a heat medium and heating an object to be cooked put in the inner pot.

従来の調理装置として、内釜と外釜の二重構造であり、該内釜と該外釜間の空洞部に水を張り込み、該外釜の下部に設けたバーナーによって、該空洞部の水を加熱して、これにより該内釜内の煮炊物を煮炊きするものが提案されている（特許文献１参照。）。 A conventional cooking apparatus has a double structure of an inner pot and an outer pot. Water is applied to the cavity between the inner pot and the outer pot, and the water in the cavity is formed by a burner provided at the lower portion of the outer pot. Has been proposed in which the cooked food in the inner pot is cooked (see Patent Document 1).

しかし、空洞部は密閉されているために、空洞部内の熱媒体たる水が加熱されて熱膨張することにより釜が破損するおそれがあるという問題点、更に、釜の破損により調理者が怪我、火傷を負うおそれがあり、安全性に問題があるという欠点を有していた。又、調理後に熱媒体の温度が低下して体積が収縮することによっても釜が破損するおそれがあるという問題点があった。 However, since the cavity is hermetically sealed, there is a problem that the kettle may be damaged due to heat expansion of the water as the heat medium in the cavity, and further, the cook is injured due to breakage of the kettle, There was a risk that there was a risk of burns and there was a problem with safety. In addition, there is a problem that the pot may be damaged when the temperature of the heat medium decreases after cooking and the volume shrinks.

そこで、外釜に安全弁を設置して、空洞部内が一定以上の圧力となったときに弁を開いて空洞部内の圧力を低下させる調理装置も提案されている。 Therefore, a cooking device has also been proposed in which a safety valve is installed in the outer pot and the valve is opened to reduce the pressure in the cavity when the pressure in the cavity reaches a certain level.

しかし、このような構成の調理装置は、弁から高圧、高温の熱媒体が排出され、調理者が怪我、火傷を負うおそれがあり、安全性に問題があるという欠点を有していた。又、この排出により熱媒体の温度が下がり加熱にむらが生じると共に調理時間が長くなるという欠点を有していた。更に、熱媒体が被調理物に混合するおそれもあり、使用する熱媒体によっては被調理物の安全性が確保されないという欠点を有していた。 However, the cooking apparatus having such a configuration has a drawback that a high-pressure and high-temperature heat medium is discharged from the valve, the cook may be injured or burned, and there is a problem in safety. In addition, this discharge has the disadvantages that the temperature of the heat medium is lowered, causing uneven heating and a longer cooking time. Furthermore, there is a possibility that the heat medium is mixed with the food to be cooked, and there is a drawback that the safety of the food to be cooked cannot be ensured depending on the heat medium to be used.

特開２００３−６１８２１号公報JP 2003-61821 A

そこで、本願発明は上記従来技術の問題点を解決し、内釜と外釜とを備え、内釜と外釜間の密閉された空間に熱媒体を封入し、加熱手段で外釜を加熱することにより、熱媒体を介して内釜を加熱して、内釜に投入した被調理物を加熱する調理装置及び調理方法において、釜が破損するおそれや調理者が怪我、火傷を負うおそれがなく、安全性の高い調理装置を提供することを目的とする。又、加熱にむらが生じることなく、且つ調理時間の短縮が可能な調理装置を提供することを目的とする。更に、熱媒体が被調理物に混合するおそれがなく、万が一に混入しても被調理物の安全性が確保される調理装置を提供することを目的とする。 Accordingly, the present invention solves the above-mentioned problems of the prior art, includes an inner hook and an outer hook, encloses a heat medium in a sealed space between the inner hook and the outer hook, and heats the outer hook with heating means. Therefore, in the cooking apparatus and cooking method for heating the inner pot via a heat medium and heating the food to be cooked in the inner pot, there is no risk of the pot being damaged or the cook being injured or burned. An object is to provide a highly safe cooking apparatus. It is another object of the present invention to provide a cooking apparatus capable of reducing cooking time without causing uneven heating. It is another object of the present invention to provide a cooking apparatus in which the heat medium is not likely to be mixed with the food to be cooked and the safety of the food to be cooked is ensured even if it is mixed.

上記課題を解決するための手段は、内釜と外釜で構成される二重構造の釜を備え、該内釜と該外釜間の密閉空間に熱媒体と気体を封入し、外釜を加熱する加熱手段を備え、密閉空間内を負圧としたことを特徴とする調理装置である。 Means for solving the above problems comprises a double-structured hook composed of an inner hook and an outer hook, and a heat medium and gas are sealed in a sealed space between the inner hook and the outer hook, A cooking apparatus comprising a heating means for heating and having a negative pressure in the sealed space.

又、上記調理装置において、前記密閉空間内を負圧にする負圧手段を設けたことを特徴とする調理装置である。 In the above cooking apparatus, a negative pressure means for negative pressure in the sealed space is provided.

又、上記調理装置において、熱媒体は食用油であることを特徴とする調理装置である。 In the above cooking apparatus, the heat medium is cooking oil.

又、内釜と外釜で構成される二重構造の釜を備え、該内釜と該外釜間の密閉空間に熱媒体と気体を封入し、外釜を加熱する加熱手段を備えた調理装置を用い、密閉空間内を加熱に先立ち予め負圧にすることを特徴とする調理方法である。 In addition, the cooking device is provided with a double-structured pot composed of an inner pot and an outer pot, and a heating means for heating the outer pot by sealing a heat medium and gas in a sealed space between the inner pot and the outer pot. The cooking method is characterized in that a device is used and negative pressure is preliminarily set in the sealed space prior to heating.

以上のような本願発明によれば、釜が破損するおそれや調理者が怪我、火傷を負うおそれがなく、高い安全性を確保することが可能となった。又、加熱にむらが生じることなく、均一な加熱が可能であり且つ調理時間の短縮が可能となった。更に、熱媒体が被調理物に混合するおそれがなく被調理物の安全性を確保することが可能となった。 According to the present invention as described above, it is possible to ensure high safety without fear of breakage of the pot or risk of injury to the cook. Further, uniform heating can be performed without causing unevenness in heating, and cooking time can be shortened. Furthermore, there is no possibility that the heat medium is mixed with the food to be cooked, and the safety of the food to be cooked can be ensured.

特に、請求項３記載の発明によれば、万一にも漏出した熱媒体が被調理物に混入した場合であっても、被調理物の安全性を保つことをが可能となった。更に、食用油は熱媒体としてコストが低いという利点があり、又、２００℃以上の高温を保つことが可能であるので、調理及び保温の効率がよくなった。 In particular, according to the third aspect of the present invention, it is possible to maintain the safety of the cooking object even if the leaked heat medium is mixed into the cooking object. Furthermore, edible oil has the advantage that the cost is low as a heat medium, and it is possible to maintain a high temperature of 200 ° C. or higher, so that the efficiency of cooking and heat retention is improved.

以下本発明の実施の形態を図に従って説明する。調理装置１は上部開口の内釜３と外釜４で構成される釜２、外釜４を加熱する加熱手段５、釜２及び加熱手段５を被覆する外袴６、釜２の両側に配置され釜２を支持する支持体７１，７２及び内釜３と外釜４間の密閉空間１０内を負圧にする負圧手段８を備えて構成されている。 Embodiments of the present invention will be described below with reference to the drawings. The cooking device 1 is arranged on the both sides of a pot 2 composed of an inner pot 3 and an outer pot 4 with an upper opening, a heating means 5 for heating the outer pot 4, an outer pot 6 for covering the pot 2 and the heating means 5, and a pot 2 The supporting members 71 and 72 for supporting the hook 2 and the negative pressure means 8 for making the inside of the sealed space 10 between the inner hook 3 and the outer hook 4 negative pressure are provided.

釜２は内釜３と外釜４の二重構造とし、外釜４は内釜３の胴部３１及び底部３２を被覆し、外釜４の上端を内釜３の上端部に固着して、夫々の胴部３１，４８及び底部３２，４９を離間させて、内釜３と外釜４間に密閉空間１０を構成している。 The hook 2 has a double structure of the inner hook 3 and the outer hook 4. The outer hook 4 covers the body 31 and the bottom 32 of the inner hook 3, and the upper end of the outer hook 4 is fixed to the upper end of the inner hook 3. The body portions 31 and 48 and the bottom portions 32 and 49 are separated from each other to form a sealed space 10 between the inner hook 3 and the outer hook 4.

釜２の密閉空間１０内には熱媒体２２及び気体としての空気１００が封入されている。外釜４には熱媒体２２及び空気１００の密閉空間１０内への注入、排出を行う図示しないバルブを設けている。尚、一般的に熱媒体には空気等の気体も包含されるが、本願発明における熱媒体には空気等の常温時に気体のものは包含されない。又、気体は常温時に気体のものを意味し、空気１００に限定されない。加熱手段５たるガスバーナーは外釜４の底部４９の下方に外袴６に固定して設置し、図示しないガス供給源と電磁弁を介して配管にて接続されている。尚、加熱手段５としては図１及び２に示すようにガスバーナーを用いる他、電磁誘導加熱装置、発熱コイル、ヒーター等の公知の加熱手段を用いることが可能である。 A heat medium 22 and air 100 as a gas are sealed in the sealed space 10 of the pot 2. The outer hook 4 is provided with a valve (not shown) for injecting and discharging the heat medium 22 and the air 100 into the sealed space 10. In general, the heat medium includes gas such as air, but the heat medium in the present invention does not include gas such as air at normal temperature. The gas means a gas at normal temperature and is not limited to the air 100. The gas burner as the heating means 5 is fixed to the outer casing 6 below the bottom 49 of the outer pot 4 and is connected to a gas supply source (not shown) by piping through a solenoid valve. As the heating means 5, it is possible to use a known heating means such as an electromagnetic induction heating device, a heating coil, a heater, etc. in addition to using a gas burner as shown in FIGS. 1 and 2.

加熱手段５として誘導加熱コイルを用いる電磁誘導加熱装置を使用した実施形態としては、図４乃至６に示すように、外釜４の底部４９の一部を下方へ突出させてタンク４１を設けている。タンク４１は四側面４１２，４１２…及び底面４１３からなる上部開口の四角柱形状であり、側面４１２の上部を外釜４の底部４９に設けた孔４８に溶着して形成し、タンク４１内部は密閉空間１０の一部を構成している。 As an embodiment using an electromagnetic induction heating device using an induction heating coil as the heating means 5, as shown in FIGS. 4 to 6, a tank 41 is provided by projecting a part of the bottom 49 of the outer pot 4 downward. Yes. The tank 41 has a quadrangular prism shape with an upper opening composed of four side surfaces 412, 412... And a bottom surface 413. The upper portion of the side surface 412 is welded to a hole 48 provided in the bottom 49 of the outer pot 4. A part of the sealed space 10 is formed.

タンク４１にはタンク４１を水平方向に貫通する３本の円筒状の管４２を設け、該管４２内に加熱手段５たる誘導加熱コイルを設置している。両端開口の管４２の両端縁４２２，４２２はタンク４１の対向する側面４１２，４１２に設けた孔４１４，４１４に溶着され、管４２は密閉空間１０内に位置するが、管４２の内部は密閉空間１０を構成せずに、密閉空間１０の外部に開放されている。管４２は他の管４２、タンク４１の底面４１３及び内釜３の底部３２と適宜の間隔を備えて設けている。このような構成とすることで、管４２と熱媒体２２の接触面積を広くすることが出来、熱媒体２２ひいては被調理物の急速加熱、均一な加熱が可能となっている。 The tank 41 is provided with three cylindrical tubes 42 penetrating the tank 41 in the horizontal direction, and an induction heating coil as the heating means 5 is installed in the tube 42. Both end edges 422 and 422 of the pipe 42 open at both ends are welded to holes 414 and 414 provided in the opposite side surfaces 412 and 412 of the tank 41, and the pipe 42 is located in the sealed space 10, but the inside of the pipe 42 is sealed. The space 10 is not formed and is opened to the outside of the sealed space 10. The pipe 42 is provided with appropriate intervals from the other pipe 42, the bottom surface 413 of the tank 41, and the bottom portion 32 of the inner pot 3. With such a configuration, the contact area between the tube 42 and the heat medium 22 can be widened, and the heat medium 22 and thus the food to be cooked can be rapidly heated and evenly heated.

尚、管４２の設置数は３本に限定されず、１本、２本或いは４本以上を設けることとしてもよく、その形状も直線状且つ円筒状に限定されず、湾曲状、屈曲状、又、断面方形状等も採用可能である。又、管４２はタンク４１を貫通させず、即ち一端のみ開口させる構成としてもよく、更に、タンク４１を設けずに、一端のみ開口又は両端開口の管４２を密閉空間１０内に挿入設置することとしてもよい。又、外釜４にはタンク４１及び管４２を設けずに、外釜４の外面に適宜誘導加熱コイル５を配設する構成としてもよい。 The number of tubes 42 is not limited to three, and may be one, two, or four or more. The shape is not limited to a linear shape and a cylindrical shape, and is curved, bent, Moreover, a cross-sectional square shape etc. are employable. Further, the pipe 42 may be configured not to penetrate the tank 41, that is, to be opened only at one end, and further, the pipe 42 having only one end or both ends opened may be inserted and installed in the sealed space 10 without providing the tank 41. It is good. The outer hook 4 may be provided with the induction heating coil 5 appropriately on the outer surface of the outer hook 4 without providing the tank 41 and the pipe 42.

外釜４或いは少なくとも管４２又は管４２の内面は加熱手段５としての誘導加熱コイルにより誘導加熱され得る適当な抵抗率を有する金属材料、例えばステンレス、鉄、銅等を用いて形成している。誘導加熱コイルは図示しない電源、後述するシーケンサ５１に電気的に接続されている。 The outer pot 4 or at least the pipe 42 or the inner surface of the pipe 42 is formed using a metal material having an appropriate resistivity that can be induction-heated by an induction heating coil as the heating means 5, such as stainless steel, iron, copper, or the like. The induction heating coil is electrically connected to a power source (not shown) and a sequencer 51 described later.

釜２は釜２の側部を被複する円筒状の外袴６の上端部６１で支持され、外袴６は対向する二個の回転軸１１，１１に固定され、回転軸１１，１１は収納部７３を備える函状の支持体７１，７２内に設けた軸受１２，１２に回転自在に軸支されている。支持体７１にはハンドル７９が設けられ、ハンドル７９の軸７９１に設けたウォーム６６及び回転軸１１に設けたウォーム歯車６７により回転軸１１と連結して、ハンドル７９の回転により回転軸１１を軸方向に回転させて釜２を回動、傾倒可能としている。回転軸１１には軸方向に貫通する貫通孔１１１が設けられ、外袴６の該貫通孔１１１と対応する位置に通孔６２が設けられて、外袴６内部と収納部７３が連通している。 The shuttle 2 is supported by an upper end 61 of a cylindrical outer casing 6 that covers the side of the outer casing 2, and the outer casing 6 is fixed to two opposing rotating shafts 11, 11. It is rotatably supported by bearings 12 and 12 provided in box-shaped supports 71 and 72 having a storage portion 73. The support 71 is provided with a handle 79, which is connected to the rotary shaft 11 by a worm 66 provided on the shaft 791 of the handle 79 and a worm gear 67 provided on the rotary shaft 11, and the rotary shaft 11 is pivoted by the rotation of the handle 79. The hook 2 can be rotated and tilted by rotating in the direction. The rotary shaft 11 is provided with a through hole 111 penetrating in the axial direction, a through hole 62 is provided at a position corresponding to the through hole 111 of the outer casing 6, and the inside of the outer casing 6 communicates with the storage portion 73. Yes.

外釜３の上部側面には吸引管８２の一端を接続して密閉空間１０と連通させ、吸引管８２は回転軸１１の貫通孔１１１を通り、吸引管８２の他端を支持体７１の収納部７３内に設置した真空ポンプ８１に接続し、吸引管８２には密閉空間１０内の圧力を計測する圧力検出手段たる圧力センサ８３、密閉空間１０を開閉する電磁弁８４及び密閉空間１０内の熱媒２２が吸引管８２内或いは少なくとも真空ポンプ８１に進入するのを防止するフィルター８５を備えて、負圧手段８を構成している。吸引管８２は収納部７３内の貫通孔１１１出口付近でスイベルジョイント８９により接続されて構成され、スイベルジョイント８９から外釜３までの部分を回動可能とし、釜２の回動と共に回動する構成としている。 One end of a suction pipe 82 is connected to the upper side surface of the outer hook 3 to communicate with the sealed space 10. The suction pipe 82 passes through the through hole 111 of the rotating shaft 11, and the other end of the suction pipe 82 is accommodated in the support 71. The suction pump 82 is connected to a vacuum pump 81 installed in the section 73, a pressure sensor 83 as pressure detecting means for measuring the pressure in the sealed space 10, an electromagnetic valve 84 for opening and closing the sealed space 10, and the inside of the sealed space 10 The negative pressure means 8 is configured by including a filter 85 that prevents the heat medium 22 from entering the vacuum pipe 81 or at least into the vacuum pump 81. The suction pipe 82 is configured to be connected by a swivel joint 89 in the vicinity of the outlet of the through hole 111 in the storage portion 73, and a portion from the swivel joint 89 to the outer hook 3 can be turned. It is configured.

尚、負圧手段８を設けずに、密閉空間１０に熱媒体２２及び気体たる空気１００を封入する際に予め密閉空間１０内を負圧とすることとしてもよい。もっとも熱媒体２２の膨張、収縮が繰り返されるので、密閉空間１０内の負圧の程度を一定に保つ為には、使用毎の微調整が望ましいので、負圧手段８を備えることが望ましい。 In addition, it is good also as making the inside of the sealed space 10 into a negative pressure beforehand, when not providing the negative pressure means 8, but enclosing the heat medium 22 and the air 100 which is gas in the sealed space 10. FIG. However, since the expansion and contraction of the heat medium 22 are repeated, fine adjustment for each use is desirable in order to keep the degree of negative pressure in the sealed space 10 constant.

蓋１３は支持体７１に枢支されたアーム１４に支持されて、内釜３の上部開口部を開閉自在としている。又、支持体７１には釜２に給水、給湯する為の水栓１５，１５を設けている。 The lid 13 is supported by an arm 14 pivotally supported by a support body 71 so that the upper opening of the inner hook 3 can be opened and closed. Further, the support 71 is provided with faucets 15 and 15 for supplying water to the kettle 2 and supplying hot water.

支持体７２には圧力検出手段たる圧力センサ８３で検出された密閉空間１０内の圧力を予め記憶された値と比較演算して電磁弁８４の開閉及び真空ポンプ８１の作動、加熱手段５への燃料ガスの供給、自動着火等を制御する制御手段たるシーケンサ５１等が内設され、支持体７２の前面には操作盤９１が設けられ、該操作盤９１には電磁弁８４、真空ポンプ８１等の電源スイッチ、圧力表示モニタ等が設けられている。 In the support 72, the pressure in the sealed space 10 detected by the pressure sensor 83 as the pressure detecting means is compared with a value stored in advance to open and close the electromagnetic valve 84, operate the vacuum pump 81, and supply to the heating means 5. A sequencer 51 or the like, which is a control means for controlling the supply of fuel gas, automatic ignition, etc., is provided, and an operation panel 91 is provided on the front surface of the support 72. The operation panel 91 includes an electromagnetic valve 84, a vacuum pump 81, and the like. Power switch, pressure display monitor and the like are provided.

内釜３と外釜４間の密閉空間１０には熱媒体２２及び空気１００が封入されている。このように熱媒体２２のみで密閉空間１０を満たすのではなく空気１００をも封入することにより、熱媒体２２の熱膨張に伴う密閉空間１０内の圧力を調整可能としている。熱媒体２２としては、グリス等の工業油や食用油等の油や水等を用いることが出来るが、高温を保つことが容易且つ低コストで、更に、釜２の破損等による被調理物への混入時にも被調理物の安全性を保つことが可能な食用油が望ましい。又、熱媒体２２の封入量は用いる熱媒体２２の熱膨張率により適宜決定するが、膨張時に密閉空間１０の体積以下の体積となる量とする。例えば、密閉空間１０の体積が９７ｌ、熱媒体に７６ｌを３００℃まで加熱すると約９７ｌとなる食用油を用いる場合には、熱媒体２２としての該食用油を７１ｌ封入する。 A heat medium 22 and air 100 are sealed in the sealed space 10 between the inner hook 3 and the outer hook 4. In this way, not only the heat medium 22 is filled with the sealed space 10 but also the air 100 is enclosed, so that the pressure in the sealed space 10 accompanying the thermal expansion of the heat medium 22 can be adjusted. As the heat medium 22, industrial oil such as grease, oil such as edible oil, water, or the like can be used. However, it is easy to maintain a high temperature and at a low cost, and further to a food to be cooked due to breakage of the pot 2 or the like. An edible oil capable of maintaining the safety of the food to be cooked even when mixed is desirable. Further, the amount of the heat medium 22 enclosed is appropriately determined depending on the coefficient of thermal expansion of the heat medium 22 to be used. For example, when using edible oil whose volume of the sealed space 10 is 97 l and 76 l is heated to 300 ° C. and becomes about 97 l, 71 l of the edible oil as the heat medium 22 is sealed.

次に、本発明の調理装置１の使用、作用について説明する。密閉空間１０内に熱媒体２２及び空気１００を封入し、負圧手段８を用いて、即ち、操作盤９１を操作し、圧力センサ８３で密閉空間１０内の圧力を検出してシーケンサ５１に出力し、該圧力の情報を入力したシーケンサ５１は予め設定記憶された圧力値と比較演算して電磁弁８４を開き、真空ポンプ８１を作動させるよう制御する。密閉空間１０内の空気は吸引管８２をとおり真空ポンプ８１に吸引されて、密閉空間１０内を負圧とする。 Next, the use and action of the cooking device 1 of the present invention will be described. The heat medium 22 and the air 100 are sealed in the sealed space 10, the negative pressure means 8 is used, that is, the operation panel 91 is operated, and the pressure in the sealed space 10 is detected by the pressure sensor 83 and output to the sequencer 51. Then, the sequencer 51 to which the information on the pressure is input performs a comparison operation with a pressure value set and stored in advance, and opens the electromagnetic valve 84 to control the vacuum pump 81 to operate. The air in the sealed space 10 is sucked into the vacuum pump 81 through the suction pipe 82 to make the inside of the sealed space 10 have a negative pressure.

予め設定された圧力値まで負圧になると、シーケンサ５１の制御により電磁弁８４を閉じると共に、真空ポンプ８１を停止させる。この後に内釜３内に被調理物を投入し、操作盤９１を操作し、シーケンサ５１の制御により加熱手段５への燃料ガスの供給、自動着火等を行い加熱手段５により外釜４を加熱する。加熱手段５として誘導加熱コイルを用いる場合には、誘導加熱コイルにより外釜４の一部である管４２を誘導加熱する。そして、順次熱交換が行われ、外釜４は熱媒体２２を加熱し、熱媒体２２は内釜３を加熱することにより、内釜３内に投入された被調理物を加熱し、調理する。 When the pressure reaches a preset pressure value, the solenoid valve 84 is closed and the vacuum pump 81 is stopped under the control of the sequencer 51. Thereafter, the cooking object is put into the inner pot 3, the operation panel 91 is operated, the fuel gas is supplied to the heating means 5, the automatic ignition is performed by the control of the sequencer 51, and the outer pot 4 is heated by the heating means 5. To do. When an induction heating coil is used as the heating means 5, the tube 42 which is a part of the outer pot 4 is induction heated by the induction heating coil. Then, heat exchange is sequentially performed, and the outer pot 4 heats the heat medium 22, and the heat medium 22 heats the inner pot 3, thereby heating the food to be cooked in the inner pot 3 and cooking. .

このように加熱時に密閉空間１０から圧を逃がすことがないので、気化した熱媒体２２の排出による調理者の怪我、火傷の心配、被調理物への熱媒の混入がなく、高い安全性を備えることとなると共に、急速な加熱が出来、しかも被調理物の均一な加熱が可能となっている。 In this way, since pressure is not released from the sealed space 10 during heating, there is no concern about the cook's injury or burn due to the discharge of the vaporized heat medium 22, and there is no mixing of the heat medium into the food to be cooked. In addition to being provided, rapid heating is possible, and uniform cooking of the food is possible.

加熱された熱媒体２２は熱膨張するが、密閉空間１０内が負圧となっているので、密閉空間１０内の圧力の上昇を抑制することが出来、内釜３及び外釜４の損傷を防止することが出来る。 Although the heated heat medium 22 is thermally expanded, since the inside of the sealed space 10 has a negative pressure, an increase in pressure in the sealed space 10 can be suppressed, and damage to the inner hook 3 and the outer hook 4 can be prevented. Can be prevented.

調理が終了しガスの供給を停止しても熱媒体２２の温度は急激には低下しないので、被調理物を長時間に亘って保温することが可能である。 Even when cooking is finished and the supply of gas is stopped, the temperature of the heat medium 22 does not drop rapidly, so that the object to be cooked can be kept warm for a long time.

その後熱媒体２２の温度は徐々に低下し、熱媒体２２は収縮するが、熱媒体２２の膨張により収縮した空気１００が膨張するので、密閉空間１０内の圧力の変動を抑制することが出来る。このように負圧状態の空気１００が熱媒体２２の膨張、収縮による密閉空間１０内の圧の変動を吸収し、釜２の損傷を防止している。 Thereafter, the temperature of the heat medium 22 gradually decreases and the heat medium 22 contracts. However, the air 100 contracted by the expansion of the heat medium 22 expands, so that fluctuations in pressure in the sealed space 10 can be suppressed. In this way, the air 100 in the negative pressure state absorbs fluctuations in the pressure in the sealed space 10 due to the expansion and contraction of the heat medium 22 and prevents the hook 2 from being damaged.

次に本調理装置１を使用する前に上記と同様に密閉空間１０内を負圧として、調理を開始する。負圧にするのは、直前の調理が終り、熱媒体２２が略常温時の体積に戻った時に行うことにより、次回の調理に於いて負圧にする作業時間の短縮を図れるので、望ましい。このように調理毎に負圧手段８を用いて密閉空間１０内の圧力を調整して負圧とすることが望ましいが、必ずしも調理毎に行わなくてもよい。 Next, before using this cooking apparatus 1, cooking is started by setting the inside of the sealed space 10 to a negative pressure in the same manner as described above. The negative pressure is desirable when the immediately preceding cooking is completed and the heating medium 22 returns to the volume at about normal temperature, thereby shortening the working time for the negative pressure in the next cooking. As described above, it is desirable to adjust the pressure in the sealed space 10 using the negative pressure means 8 for each cooking so as to obtain a negative pressure.

本発明一実施例側面図Side view of one embodiment of the present invention 本発明一実施例平面図Plan view of one embodiment of the present invention 本発明一実施例支持体部分側面図Side view of support part according to one embodiment of the present invention 本発明他実施例側面図Side view of another embodiment of the present invention 本発明他実施例平面図Other embodiment plan view of the present invention 本発明他実施例釜部分側面図Other embodiments of the present invention

符号の説明Explanation of symbols

１調理装置
２釜
３内釜
４外釜
４１タンク
４２管
５加熱手段
５１シーケンサ
６外袴
７１支持体
７２支持体
８負圧手段
８１真空ポンプ
８２吸引管
８３圧力センサ
８４電磁弁
８５フィルター
９１操作盤
１０密閉空間
１１回転軸
１３蓋
２２熱媒体
１００空気 DESCRIPTION OF SYMBOLS 1 Cooking apparatus 2 Pot 3 Inner pot 4 Outer pot 41 Tank 42 Pipe 5 Heating means 51 Sequencer 6 Outer casing 71 Support body 72 Support body 8 Negative pressure means 81 Vacuum pump 82 Suction pipe 83 Pressure sensor 84 Electromagnetic valve 85 Filter 91 Operation panel 10 Sealed space 11 Rotating shaft 13 Lid 22 Heat medium 100 Air

Claims

内釜と外釜で構成される二重構造の釜を備え、該内釜と該外釜間の密閉空間に熱媒体と気体を封入し、外釜を加熱する加熱手段を備え、密閉空間内を負圧としたことを特徴とする調理装置。 A double-structured hook composed of an inner pot and an outer pot is provided, and a heating medium and gas are sealed in a sealed space between the inner pot and the outer pot to heat the outer pot. A cooking apparatus characterized by having negative pressure.

前記密閉空間内を負圧にする負圧手段を設けたことを特徴とする請求項１記載の調理装置。 The cooking apparatus according to claim 1, further comprising negative pressure means for making negative pressure in the sealed space.

熱媒体は食用油であることを特徴とする請求項１又は２記載の調理装置。 The cooking apparatus according to claim 1 or 2, wherein the heat medium is edible oil.

内釜と外釜で構成される二重構造の釜を備え、該内釜と該外釜間の密閉空間に熱媒体と気体を封入し、外釜を加熱する加熱手段を備えた調理装置を用い、密閉空間内を加熱に先立ち予め負圧にすることを特徴とする調理方法。 A cooking apparatus having a double-structured pot composed of an inner pot and an outer pot, and a heating device for heating the outer pot by sealing a heat medium and gas in a sealed space between the inner pot and the outer pot. A cooking method characterized by using a negative pressure in advance in a sealed space prior to heating.