JP2008307096A - Cooking pan - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the heat conductivity in a cooking pan with an inner pan inserted into an outer pan by releasing air trapped between the outer pan and inner pan. <P>SOLUTION: The cooking pan includes the outer pan in which a lid receiving part, a body part and a bottom part are formed from above; the aluminum inner pan molded into a lid receiving part, a raised part and a bottom part along the inner shell of the outer pan to be inserted into the outer pan; and a doughnut-shaped drain ring mounted on the lid receiving part of the inner pan to cover the upper part of the inner pan; and a lid mounted on the lid receiving part of the drain ring to cover the upper part of the inner pan. The cooking pan is formed with a groove on the rear surface of the bottom of the inner pan. The upper part of the groove continuing to the outer surface is recessed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cooking pan that enables oil cooking or the like with a lid.

  The present inventor has proposed a donut-shaped water receiving ring that extends over the upper part of the pan body (Japanese Patent No. 1929192). When this pan with a ring is used, oil such as fried chicken and tempura with a lid is used. Enables cooking, requires less amount of oil to use for a single cooking, deeply fried and tastes good, cook does not get intoxicated by the smell of oil, prevents oil from splashing and does not stain the surroundings, oil It has various advantages such as being difficult for fire to enter.

  In this case, since the temperature of the bottom of the pan needs to be leveled as much as possible, a thick pan made of aluminum or stainless steel is used as the pan. For this reason, the weight increases, and the burden increases on carrying and cleaning after use. In particular, the burden is great for the elderly, and this is why the use of pots with broken rings is discouraged. So, if you put a thin-walled inner pot made of metal foil etc. in the pan and cook oil in this inner pot, after cooking, if you want to abandon this inner pot or wash only the inner pot, ) Is unnecessary.

For this reason, this inventor is providing the inner pot which has the shape along the outline of the outer pot with aluminum foil etc. (patent document 1). According to this, the inner pot and the outer pot are separated, and the above-mentioned drawbacks are eliminated, but on the other hand, the adhesion is too good, especially between the bottom of the outer pot and the bottom of the inner pot. There is a problem that the air that exists in does not escape. If this air does not escape, there is a slight air layer between the inner pot and the outer pot, which inhibits heat conduction and does not raise the temperature sufficiently, and lowers the thermal efficiency.
JP 2006-73983 A

  In the present invention, the air escapes by devising the shape of the inner pot.

  Under the above-described problems, the present invention provides an outer pan in which a lid receiving portion, a body portion, and a bottom portion are formed from above, and a lid receiving portion, an upright portion, and an inner shell of the outer pan. An aluminum inner pot molded at the bottom and inserted into the outer pan, a doughnut-shaped draining ring placed on the inner pan lid receiving portion and covering the upper portion of the inner pan, and a draining ring lid receiver In the cooking pan consisting of a lid that is placed on the upper part and covers the upper side of the inner pot, the cooking pan is characterized in that a concave groove is formed on the back surface of the bottom of the inner pot, the upper part continuing to the outer periphery, In this, the means according to claim 2 wherein the groove is formed in a straight line and / or a curve, and the means according to claim 3, wherein the groove continues to a part of the standing part along the trunk of the outer pan. provide.

  According to the above means, when the inner pot is inserted into the outer pot, the air accumulated between the bottom of the inner pot and the bottom of the outer pot (which cannot be made to exist) is taken into the groove with heating. Then go to the outer periphery and escape from here through the trunk of the outer pot and the upright part (torso) of the inner pot. Therefore, the inside of the inner pot can be heated to a high temperature, and the thermal efficiency is not lowered.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional side view of each cooking pot according to the present invention, FIG. 2 and FIG. 3 are plan views of inner pots showing the form of grooves, and FIG. FIG. 5 is a plan view of the state where the lid is removed. This cooking pan is composed of an outer pan 1, an inner pan 2 inserted into the outer pan, and water passed over the inner pan 2. It comprises a receiving ring 3 and a lid 4 that is placed on the water receiving ring 3 and covers the upper part of the inner pot 2.

  The outer pan 1 is composed of a body portion 1b that forms a side portion following the bottom portion 1a, and a lid receiving portion 1c that projects outward from the upper end of the body portion 1b, and the material thereof is a multilayer of aluminum and stainless steel. It is made of a thick material such as aluminum coated with fluorine resin or a thick aluminum body. This is because in oil dishes, the temperature distribution at the bottom of the body portion 1b needs to be leveled, and if the temperature is locally high, the overall temperature will not rise and will burn. One or two handles 5 are provided on the side surface of the body portion 1b, but there are some that are not provided.

  The inner pot 2 is formed in advance in a shape along the outline of the outer pot 1, and like the outer pot 1, the inner pot 2 has a bottom portion 2a, an upright portion 2b, and a lid receiving portion 2c. It is inserted in The material suitable for the inner pot 2 is aluminum foil, and an aluminum foil having a thickness of 50 to 150 μm is drawn into a hat shape. In order to facilitate this molding, in this example, the bottom of the standing portion 2b of the inner pot 2 is made smaller in diameter than the upper part (the outer pot 1 is also shaped along this). This is because aluminum can be easily formed, has a low price, and can be made disposable. Moreover, when it is made high temperature for a short time, it has the property (softness | flexibility) which becomes soft, and the bottom part 2a and the standing part 2b will closely_contact | adhere to the bottom part 1a and trunk | drum 1b of the outer pot 1 (inner pot 2 and outer The gap with the pan 1 is eliminated, and the thermal conductivity is not reduced).

  In the present invention, a groove 6 that is concave upward is formed on the back surface of the bottom 2 a of the inner pot 2. The groove 6 allows air accumulated between the bottom 1a of the outer pot 1 and the back surface of the bottom 2a of the inner pot 2 to escape to the outside. In this respect, the groove 6 continues to the outer periphery of the bottom 2a. Is a condition. Moreover, you may continue to a part of standing part 2b. In this respect, the shape of the groove 6 is not limited, and a straight line or a curved line can be considered. Specifically, a straight line such as a radial shape, a lattice shape, or a streak shape, or a curved shape such as a spiral shape can be considered. Further, a combination of a straight line and a curve may be used.

  The water receiving ring 3 is lowered from the inner periphery of the lid receiving part 3a placed on the lid receiving part 2c of the inner pot 2 to the inside of the standing part 2b of the inner pot 2 and stretched to the center side. It consists of an annular portion 3b that comes out, and is made of stainless steel or the like. In this case, the inner peripheral side of the annular portion 3b is formed with a slight upward slope toward the center side. This is to prevent the water accumulated on this from dropping into the bottom 2 a of the inner pot 2. In addition, a handle 7 that does not interfere with the attachment / detachment of the lid 4 is also attached to the lid receiving portion 3a.

  FIG. 6 is a partial cross-sectional view of the cooking pan equipped with the water receiving ring 3. The lid receiving portion 3a of the water receiving ring 3 contacts the lid receiving portion 2c of the inner pot 2 within a narrow range on the outer peripheral side. The remaining portion and the portion related to the annular portion 3b are separated from the lid receiving portion 2c and the standing portion 2b. If it carries out like this, since the heat | fever of the outer pot 1 will be interrupted | blocked by the part which is spaced apart, and it will not be directly transmitted to the water receiving ring 3, the annular part 3b etc. will not become very high temperature. In addition, the insertion of the inner pot 2 becomes easy because the lid receiving portion 2c and the upright portion 2b are separated from each other.

  In addition, it is preferable that a hole 8 is formed in a part of the annular portion 3b and a water receiving box 9 is provided below. The water receiving box 9 guides water that has fallen to the annular portion 3b of the water receiving ring 3 from the hole 8 and accumulates the water therein to re-evaporate it. From this point of view, it is preferable that the annular portion 3 b is formed in a downward slope toward the hole 8. By providing the water receiving box 9, it is possible to eliminate the danger that water will remain in the annular portion 3b and drop into the bottom portion 2a, and evaporative noise can be reduced.

  The lid 4 has a ball-shaped heat-resistant transparent glass 10 disposed at the center thereof, and the periphery thereof is fitted and held by a ring body 11 such as stainless steel. At this time, a sealing material 12 is interposed between the transparent glass 10 and the ring body 11 so that sealing is achieved between them. Thereby, the inside of the inner pot 2 can be seen through through the transparent glass 10.

  The lid 4 is provided with a handle 13 for bridging the transparent glass 10. Specifically, both ends of the handle 13 are fixed to the ring body 11 by welding or the like. The handle 13 is cross-linked with an interval that allows at least a hand to be inserted above the transparent glass 10. Various shapes of the handle 13 are conceivable. However, as shown in FIG. 1 and the like, it is preferable that at least a part of the handle 13 is composed of two metal bars having the same height. This is because a certain amount of space can be secured and it is easy to grasp, and the weight can be reduced, and the inside can be visually recognized from between the bars.

  The lid 4 needs to be placed in close contact with the lid receiving portion 3 a of the water receiving ring 3. Accordingly, the outer dimension of the ring body 11 of the lid 4 is adjusted to the outer dimension of the water receiving ring 3 (the outer dimension of the lid receiving part 3a of the water receiving ring 3 is the outer dimension of the lid receiving part 2c of the inner pot 2). 7, the main portion cross-sectional view of FIG. 7 shows that the lid receiver 3 a of the water receiving ring 3 comes into full contact with the lid receiving portion 2 c of the inner pot 2 and moves away from the standing portion 2 b, Subsequently, the annular portion 3b is formed, and what is shown in the cross-sectional view of the main part in FIG. 8 is one in which the outer dimensions of the ring body 11 are matched with the outer dimensions of the lid receiving portion 2c of the inner pot 2. Of course, it may be like this.

  Next, a description will be given of the case of cooking an oil dish such as tempura or fried chicken using the above cooking pan. First, the inner pan 2 is inserted into the outer pan 1, and the upright portion 2b is inserted into the outer pan 1 by hand or the like. Is pressed along the inner periphery of the body portion 1b so that there is as little gap as possible between them. This is because the inner pot 2 is not formed along the outline of the outer pot 1 even though it is pre-shaped. At this time, the lid receiving portion 2c of the inner pot 2 is also pressed so as to be in close contact with the lid receiving portion 1c of the outer pot 1. In this state, the bottom 2 a of the inner pot 2 is in close contact with the bottom 1 a of the outer pot 1.

  Next, the draining ring 3 is attached, and the cooking pot is slightly boiled and oil is poured when the temperature reaches a certain level. When the temperature of the oil rises, the ingredients are put therein and the lid 4 is put on and heated. During this heating, the groove 6 formed on the back surface of the bottom portion 2a of the inner pot 2 takes in air accumulated between the bottom portion 2a and the bottom portion 1a of the outer pot 1 and drives it to the outer peripheral side. The air expelled to the outer peripheral side escapes to the outside through between the trunk portion 1b of the outer pot 1 and the standing portion 2b of the inner pot 2. This is because although the body portion 1b and the upright portion 2b are in close contact with each other, there is a slight gap and this air is directed upward. Thereby, the heat conduction between the outer pot 1 and the inner pot 2 is improved, and the inner pot 2 can be sufficiently heated to raise the oil therein to a required temperature.

  And if the side which touches the inner pot 2 of a foodstuff becomes light-colored, the lid | cover 4 is removed, a foodstuff is turned over, the lid | cover 4 is covered again, and it cooks. During this time, it is a feature that the water receiving ring 3 is attached, but even if the water receiving ring 3 having such a shape exists, it does not disturb cooking. The amount of oil used at this time may be small, and a depth of about 1 cm is sufficient. This is because the oil can be cooked with the lid 4, so that even a small amount of oil can sufficiently rotate on the food.

  When the temperature of the oil increases during cooking, the moisture in the food and oil evaporates and adheres to the back surface of the lid 4, and this gradually flows down to the outer periphery. The evaporated water that has flowed down to the outer periphery falls onto the annular portion 3 b of the water receiving ring 3 and does not fall into the inner pot 2. In order to reliably drop the evaporated water onto the annular portion 3b, it is desirable to provide the lower protrusion 14 in an annular shape on the ring body 11 of the lid 4 above the annular portion 3b.

  The water dropped on the annular portion 3b evaporates again because the annular portion 3b is exposed to a high temperature, and a part of the water drops on the lid receiving portion 2c of the inner pot 2 and the lid receiving portion 3a of the draining ring 3 or It goes out from the mating surface (here, a water seal is formed) with the ring body 10. At this time, at least the portion of the annular portion 3b of the water receiving ring 3 is separated from the upright portion 2b of the inner pot 2 so that the annular portion 3b and the like do not become so hot. There is also an advantage that (a sound that instantly evaporates) does not occur.

  In this case, in the case where the water receiving box 9 is provided, the water that has fallen into the annular portion 3b is further dropped into the water receiving box 9, so that it does not fall into the bottom 2a of the inner pot 2. Of course, the water receiving box 9 is heated by the lower oil and becomes very hot, so that evaporation is further promoted. In this way, the evaporated water goes out from the inner pot 2, but at least, it does not fall into the bottom 2a, so that oil cooking with the lid 4 is possible. is there. In addition, the fact that moisture does not return to the inner pot 2 prevents damage to the inner pot 2 and improves the taste. And this state can be visually recognized by making the lid | cover 4 transparent, and a further relief is given.

  When cooking is completed, a small amount of oil remains in the inner pot 2, but this may be used as it is for the next cooking. There is nothing to do). At this time, the inner pot 2 is made of thin aluminum foil or the like, but can be used repeatedly until it is damaged. By the way, if the inner pot 2 is damaged, the oil inside leaks out to the outer pot 1 side and soils it or burns it again, so it is preferable to replace it when it is used appropriately. Even in this case, if the inner pot 2 is made of aluminum foil, it is inexpensive and is not so economical. After cooking, only the inner pot 2 may be taken out and cleaned, but at that time, the inner pot 2 is lightweight, so the cleaning work does not become difficult and the heavy outer pot 1 does not need to be cleaned. It is.

  The above is a description of cooking so-called deep-fried food that uses a large amount of oil, but the combination of inner pot and water-receiving ring is useful for cooking all other boiled foods, steamed foods, cooked foods and fried foods. It is. Even in this case, water adheres to the back of the lid during cooking, but it does not drop into the food, so it keeps a dry state and ensures good taste.

  In addition, the inner pot material may be a stainless steel thin plate. According to this, since there is not so much deformability, it is strong enough to withstand repeated use by forming the outer diameter of the upright portion in advance to match the inner diameter of the body of the outer pan. become. Further, it may be a heat-resistant paper without oil infiltration, or may be a resin as long as it can withstand high temperatures. In addition, even if it is such an inner pot, it cannot be overemphasized that the above-mentioned groove | channel is formed in the back surface of the bottom part.

It is the cross-sectional side view which made each element of the cooking pan different. It is a top view of the inner pot which shows the state of a groove | channel. It is a top view of the inner pot which shows the state of a groove | channel. It is a cross-sectional side view which combined each element of the cooking pan. It is a top view of the state which took the lid of the cooking pot. It is sectional drawing of the principal part which shows the state of an outer pot, an inner pot, a water receiving ring, and a lid | cover. It is sectional drawing of the principal part which shows the state of an outer pot, an inner pot, and a water receiving ring. It is sectional drawing of the principal part which shows the state of an outer pot, an inner pot, a water receiving ring, and a lid | cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer pan 1a The bottom part of the bowl 1b The trunk part of the bowl 1c The lid receiving part of the bowl 2 The inner pot 2a The bottom part of the bowl 2b The standing part of the bowl 2c The lid receiving part of the bowl 3 The draining ring 3a The lid receiving part of the bowl 3b The annular part of the bowl 4 Lid 5 Handle 6 Groove 7 Handle 8 Hole 9 Water receiving box 10 Transparent glass 11 Ring body 12 Sealing material 13 Handle 14 Lower projection

Claims (3)

  An outer pan in which a lid receiving portion, a body portion and a bottom portion are formed from above, and an aluminum inner which is formed into a lid receiving portion, an upright portion and a bottom portion along the outline of the outer pan and inserted into the outer pan. Cooking consisting of a pan, a doughnut-shaped draining ring placed on the lid receiving part of the inner pot and covering the upper part of the inner pot, and a lid placed on the lid receiving part of the draining ring and covering the upper part of the inner pot In the pan, a cooking pan characterized in that a concave groove is formed on the back surface of the bottom of the inner pan and continuing upward from the outer periphery.   The cooking pan according to claim 1, wherein the groove is formed in a straight line and / or a curved line. The cooking pan according to claim 1 or 2, wherein the groove continues to a part of the standing portion along the trunk of the outer pan.