JP2010022625A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooker for accurately heating the inner and outer parts of food and also frying the food with a small amount of oil. <P>SOLUTION: The cooker includes: a moving mechanism 4 for moving the food; and a middle wavelength infrared light heater 6 and a short wavelength infrared light heater 8 for irradiating the food with middle wavelength infrared light and short wavelength infrared light respectively. When the food is irradiated with the middle wavelength infrared light and the short wavelength infrared light, the inner and outer parts of the food are heated so as to be baked. When oil is dropped or applied onto the food from an oil supply part 38, the inner part of the food is accurately heated, and also the outer part is fried to have appropriate taste as fried food. Also the rear surface of the food is reliably baked with the use of the middle wavelength infrared light and the short wavelength infrared light which are reflected by a reflection plate 36. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cooker that performs baking such as heating or frying fried food such as croquettes and fried shrimp, fried chicken, frozen food of tempura, or foods other than frozen products.

  In general, a microwave oven is often used to warm food. However, when fried foods, grilled fish, etc. are heated in a microwave oven, the crunchy texture of the clothes and surface immediately after fried or baked is not obtained, so even in fast food stores and convenience stores etc. Food was baked using a fryer.

As for the fryer, what was fried by immersing the foodstuff put into the bowl with the bowl in the heated oil tank was common. In addition, ovens are known in which food is placed on a rotating gondola and heated by a heater that surrounds the outer periphery of the gondola in the direction of movement so that the food can be baked and its state can be demonstrated. (For example, refer to Patent Document 1).
JP 2004-201778 A

  In general, a fryer needs to be installed at a location away from the customer to use heated oil and have a cook. For this reason, there is a problem that manpower is required and the installation location is limited. In addition, due to the recent rise in the price of edible oil and the limitation of oil intake due to health consciousness, it has been desired to improve the fryer using a large amount of oil.

  Moreover, although the installation place of the above oven can be selected relatively freely, it is difficult for heat to pass inside, such as thick foods such as deep-fried food and croquettes or frozen foods. There is a problem that firing takes a long time. Moreover, in this oven, since food can only be heated, food that needs to be fried in oil must be fried in a fryer or the like in advance.

  The problem to be solved by the present invention is to provide a cooking device that solves the above-mentioned problems of the prior art and can accurately heat the inside and outside of food and fry it with a small amount of oil.

  The cooker of the present invention includes a moving mechanism for moving food, a medium wavelength infrared heater that irradiates and burns the moving food with medium wavelength infrared radiation, and a short that irradiates and burns the moving food with short wavelength infrared light. A wavelength infrared heater. The cooker also includes an oil supply unit that drops or applies oil to the moving food. The cooker also includes a reflector that reflects the medium wavelength infrared light and the short wavelength infrared light to irradiate the food. Further, the moving mechanism rotates the food or horizontally moves the food. The cooking device further includes a cooling unit that supplies cooling air to the back surfaces of the medium wavelength infrared heater and the short wavelength infrared heater.

  The cooking device of the present invention is provided with a medium wavelength infrared heater that irradiates food with medium wavelength infrared light and a short wavelength infrared heater that irradiates food with short wavelength infrared light. Thereby, the inside of food can be mainly heated with medium wavelength infrared rays, and the surface of food can be colored with short wavelength infrared rays, and the inside and outside of food can be heated accurately and baked. As a result, foods such as fried foods, frozen foods, and fish can be baked in an appropriate state in a short time.

  Moreover, in the cooking device of this invention, the oil supply part is provided and the flavor of fried food is taken out by dripping or apply | coating oil to food. For this reason, the amount of edible oil to be used can be reduced to a minimum, and cost reduction and health orientation can be met. Further, since the temperature rises quickly with a small amount of oil to be used, it is not necessary to keep the oil temperature at a high temperature throughout the day unlike a flyer. For this reason, the cost required for heating the oil can be reduced. In particular, in the present invention, the oil heated by the heat of the medium wavelength infrared heater and the short wavelength infrared heater is dropped or applied, so there is no need to provide a heater for heating the oil.

  In addition, since the cooking device of the present invention is provided with a reflector that reflects medium wavelength infrared rays and short wavelength infrared rays, the infrared rays reflected from the portions where the infrared rays from the medium wavelength infrared heater and the short wavelength infrared heater are not directly applied are also reflected. Can be irradiated. Thereby, heating efficiency can be improved without increasing the number of heaters, and further, the food can be baked to the back side without turning over.

  Moreover, in the cooking device of the present invention, the food is rotated or horizontally moved by the moving mechanism, so that many foods can be baked at a time. In particular, when the food is rotated and moved, the oil supplied from the oil supply unit becomes oil droplets and drops from the upper food to the lower food, so that even a small amount of oil is applied to the whole food. Can be easily rotated.

  Moreover, since the cooling air is supplied to the back surfaces of the medium-wavelength infrared heater and the short-wavelength infrared heater by providing the cooling section, failure due to overheating of the heater itself can be prevented.

  The cooker of the present invention includes a moving mechanism for moving food, and a medium-wavelength infrared heater and a short-wavelength infrared heater that irradiate food with medium-wavelength infrared and short-wavelength infrared, respectively. When the food is irradiated with the medium wavelength infrared rays and the short wavelength infrared rays, both the inside and outside of the food are heated and baked. Since the inside and outside of the food is heated in this way, when oil is dropped or applied to the food from the oil supply part, the inside of the food is heated accurately and the outside of the food is baked to a state with an appropriate flavor as a fried food. can do. Moreover, this cooking device is provided with a reflecting plate, and the back side of food can be reliably baked by the medium wavelength infrared rays and short wavelength infrared rays reflected by the reflecting plate.

  Hereinafter, a cooking device according to an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a cooking device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a moving mechanism of the cooking device shown in FIG. 1, FIG. 3 is a perspective view of the gondola shown in FIGS. 4 is a schematic longitudinal sectional view of the cooking device shown in FIG. The cooker in the present embodiment puts food in the casing 2 and bakes it with infrared rays from the medium wavelength infrared heater 6 and the short wavelength infrared heater 8 while rotating the food by the moving mechanism 4 provided in the casing. It has become.

  The moving mechanism 4 includes a drum-like rotating body 14 including a pair of discs 10 that are rotatably supported by an inner box of the casing 2 to be described later, and a plurality of shaft bodies 12 installed therebetween. The motor 16 that rotationally drives the rotating body 14 and a gondola 18 that is suspended from the shaft body 12 of the rotating body 14 are configured. The rotating body 14 and the motor 16 are connected by meshing a gear 20 attached to the shaft portion 10 a of the disk 10 of the rotating body 14 and a pinion gear 22 attached to the rotating shaft of the motor 16. The gondola 18 has a tray portion 18a on which food is placed, and a latch portion 18b that rises from the end portion and has a hook shape at the tip end. The surface of the tray portion 18a is subjected to Teflon (registered trademark) processing, and a plurality of holes 18c having a diameter smaller than that of the food are provided.

  The medium wavelength infrared heater 6 irradiates and heats the food with medium wavelength infrared light having a wavelength of 2 to 4 μm. In the present embodiment, two mid-wavelength infrared heaters 6 are arranged above the rotating gondola 18 and one behind. Moreover, the short wavelength infrared heater 8 heats food by irradiating food with short wavelength infrared rays having a wavelength of 1 to 2 μm. The short wavelength infrared heater 8 in this embodiment is provided between the upper and rear middle wavelength infrared heaters 6 and is arranged so as to irradiate the food with the short wavelength infrared rays from obliquely above.

  On the other hand, the casing 2 containing the moving mechanism 4, the medium wavelength infrared heater 6, and the short wavelength infrared heater 8 is provided with an outer box to keep the inside warm and prevent the outside from becoming hot as shown in FIG. 24 and an inner box 26 are provided. As described above, the rotating body 14 is attached to the inner box 26. A heat insulating coating 28 is applied to the outer surface of the inner box 26, and a heat insulating material 30 made of glass wool or the like is attached to the outer surface. As shown in FIG. 1, the outer box 24 has a door 32 attached to the front face so that it can be opened and closed, and a part of the front face is provided with an operation switch 34 used for setting and controlling temperature, time, etc. It has been.

  Further, as shown in FIGS. 4 and 5, a shallow reflecting plate 36 having a substantially hemispherical shape is installed below the inner box 26. The reflection plate 36 is made of a material that reflects infrared rays, such as an aluminum plate, and faces the medium-wavelength infrared heater 6 and the short-wavelength infrared heater 8 installed in the upper part of the inner box 26. A discharge port 36 a for discharging food and oil dropped from the gondola 18 is provided at the center of the reflecting plate 36.

  Moreover, the cooking device in the present embodiment includes an oil supply unit 38 as shown in FIG. The oil supply unit 38 drops or applies oil to food. The oil tank 40 stores edible oil, the pump 42 sucks and sends oil from the oil tank 40, and the oil sent from the pump. And a tubular member 44 provided with a plurality of nozzles, holes and the like that are dropped or applied by dropping or spraying on the food. As shown in FIGS. 4 and 6, the oil tank 40 in the present embodiment is disposed in an upper part inside the housing 2 (between the inner box 26 and the outer box 28), and is heated by the heat in the housing 2. It is arranged to be overheated and kept warm. The tubular member 44 has the name of the gondola 18 arranged along the hand direction above the position where the rotating gondola 18 moves up and down substantially vertically (in this embodiment, the front and rear in the housing 2). Yes.

  In the present embodiment, an oil tray 46 is provided under the discharge port 36a of the reflector 36 so that the oil supplied from the oil supply unit 38 can be collected and reused. The oil tray 46 is formed in a drawer shape at the bottom of the housing 2 and can be pulled out to the front of the housing 2.

  Moreover, the cooking device in the present embodiment includes a cooling unit 48 that cools the medium wavelength infrared heater 6 and the short wavelength infrared heater 8. The cooling section 48 includes an air passage 50 provided between the outer box 24 and the inner box 26 shown in FIG. 4, a fan 52 for sending outside air into the air passage 50, the medium wavelength infrared heater 6, and the short wavelength infrared ray. It is comprised from the ventilation port 54 provided in a part of inner box 26 corresponding to the back surface of the heater 8, respectively.

  In addition to the above configuration, although not shown, a control circuit for controlling the medium wavelength infrared heater 6 and the short wavelength infrared heater 8, the motor 16, the pump 42, the fan 52, etc. according to the set temperature, the set time, etc., respectively. It has.

  Next, operation | movement of the cooking appliance which consists of the said structure is demonstrated. First, the door 32 is opened, food is placed on the tray 18a of the gondola 18, the operation switch 34 is operated to set the heating temperature, time, etc., and the door 32 is closed to start the operation. Foods that can be heated include not only deep-fried food, croquettes, and pizza before heating, but also food and fish that have been frozen after heating. A case where the garment is attached to the tray portion 18a of the gondola 18 is illustrated.

  When the operation starts, the motor 16 operates, and the rotating body 14 starts to rotate around the rotation axis in the left-right direction in FIG. Thereby, the gondola 18 suspended from the shaft portion 10a of the rotating body 14 rotates and moves while maintaining the horizontal state of the tray 18a. At the same time, the medium wavelength infrared heater 6 and the short wavelength infrared heater 8 are energized, and the food on the gondola 18 that moves back and forth by rotating is irradiated with the medium wavelength infrared and the short wavelength infrared.

  Thereafter, when the temperature in the cooking device rises and the oil in the oil tank 40 also warms up, the pump 42 operates to drop or apply oil from the tubular member 44 to the food. In this way, foods that are irradiated with medium-wavelength infrared rays and short-wavelength infrared rays and oil is dropped or applied on the surface are mainly heated inside by medium-wavelength infrared rays and heated outside by short-wavelength infrared rays. Thereby, the inside of a foodstuff can be fully heated, heating the outside of foodstuffs moderately and coloring it. In particular, medium-wavelength infrared light and short-wavelength infrared light are reflected by the reflecting plate 36 and are irradiated toward the back surface of the food from below. For this reason, the back side of the food can be heated without turning the food upside down, so that the back side can be colored. Further, the oil dropped or applied to the food is accumulated in the tray portion 18a of the gondola 18 and falls downward from the hole 18c to the food on the gondola 18 positioned below or falls on the reflector 36. The oil that has fallen on the reflecting plate 36 falls from the discharge port 36a to the lower oil tray 46 and accumulates.

  When baking deep-fried food like a present Example, the temperature inside a cooking appliance is baked at about 220-250 degree | times. If the gondola 18 is rotated once per minute at this temperature, the fried chicken can be finished in about 6 minutes. In addition, in order to fry one piece of fried food, usually 8 g or more of oil is required. However, in this embodiment, only oil is used to add a baked color and flavor. Can be finished with oil. In addition, it is possible to bake without using any oil.

  On the other hand, it is conceivable that the lead part and the holding part of the medium wavelength infrared heater 6 and the short wavelength infrared heater 8 are overheated due to a long cooking time. In such a case, the fan 52 of the cooling unit 48 is operated according to the temperature rise or the cooking time, and the cooling air is sent from the air blowing port 54. As a result, the lead portions and holding portions of the medium wavelength infrared heater 6 and the short wavelength infrared heater 8 are cooled and prevented from being damaged.

  As described above, in the cooking device of the present embodiment, the inside and outside of the food can be appropriately heated by using the medium wavelength infrared heater 6 and the short wavelength infrared heater 8, and the reflector 36 is used. Therefore, it can be baked from the back side of the food.

  FIG. 8 is an explanatory view showing a partial modification of the cooking device of the present invention. In this modified example, the moving mechanism 4 described above is changed to a moving mechanism 56 that horizontally moves food. The moving mechanism 56 includes two shaft bodies 58 like a belt conveyor and a belt body 60 hung between them. In the moving mechanism 56, the belt body 60 is rotated by driving one of the shaft bodies 58 by the motor 16 described above. The food 62 is placed on the belt body 60, and the medium wavelength infrared heater 6, the short wavelength infrared heater 8 and the tubular member 44 for supplying oil are alternately arranged so as to face the belt 62. According to this modified example, the food 62 moves horizontally by the rotation of the belt body 60, and the baking is completed when the end of the belt body 60 is reached.

  In the above modified example, since the back side of the food 62 is baked, it is necessary to turn the food 62 upside down. Therefore, as shown in FIG. 9, food 62 is sandwiched from above and below by a net 64, and a shaft 64 a provided at the end of this net 64 is rotatably supported by a support part 60 a provided on a belt body 60, so that it is reversed. It may be possible. In this case, an engagement portion 64b such as a pinion gear is provided at the tip of the shaft 64a, an engagement portion 66 such as a rack is disposed at the reverse position, and the engagement portions 64b and 66 are engaged so that the belt body 60 is engaged. It is also possible to invert food by moving.

  Moreover, it is also possible to bake to the back surface, mounting on the mounting tray shown in FIG. The mounting tray supports the tray 68 provided with a hole 68a through which oil falls, a reflector 70 provided below the tray 68 and having an oil outlet 70a, and supports the tray 68 and the reflector 70. It is comprised from the oil receiving tray 72 which can store oil. By placing the food 62 on the tray portion 68 of the placing dish, the back of the food 62 can be baked by the medium wavelength infrared rays and the short wavelength infrared rays reflected by the reflector 70 without turning the food 62 upside down.

It is a perspective view of the cooking device concerning one example of the present invention. It is a perspective view which shows the moving mechanism of the cooking appliance shown in FIG. FIG. 3 is a perspective view of the gondola shown in FIGS. 1 and 2. It is a longitudinal cross-sectional schematic diagram of the cooking appliance shown in FIG. It is sectional drawing which shows the structure of the housing | casing shown in FIG. It is a perspective view which shows an oil supply part. It is a perspective view which shows a cooling part. It is explanatory drawing which shows the example of a change of the moving mechanism shown in FIG. It is a perspective view which shows the food inversion mechanism used for the moving mechanism shown in FIG. It is sectional drawing which shows the mounting tray used for the moving mechanism shown in FIG.

Explanation of symbols

2 Housing 4 Moving mechanism 6 Medium wavelength infrared heater 8 Short wavelength infrared heater 10 Disk 10a Shaft 12 Shaft 14 Rotating body 16 Motor 18 Gondola 18a Tray 18b Hatch 18c Hole 20 Gear 22 Pinion gear 24 Outer box 26 Inner box 28 Thermal insulation coating 30 Thermal insulation material 32 Door 34 Operation switch 36 Reflector 36a Discharge port 38 Oil supply part 40 Oil tank 42 Pump 44 Tubular member 46 Oil tray 48 Cooling part 50 Air passage 52 Fan 54 Air outlet 56 Moving mechanism 58 Axis Body 60 Belt body 60a Support part 62 Food 64 Net 64a Shaft 64b Engagement part 66 Engagement part 68 Tray part 68a Hole 70 Reflecting plate 70a Discharge port 72 Oil tray

Claims (6)

A moving mechanism for moving food,
A medium-wavelength infrared heater that irradiates and burns the medium-wavelength infrared to the moving food;
A short wavelength infrared heater that irradiates and burns short wavelength infrared rays to the moving food;
A cooking device comprising:   The cooking device according to claim 1, further comprising an oil supply unit that drops or applies oil to the moving food.   The cooking device according to claim 1, further comprising a reflector that reflects the medium-wavelength infrared light and the short-wavelength infrared light to irradiate the food.   The cooker according to any one of claims 1 to 3, wherein the moving mechanism rotates the food.   The cooking device according to claim 1, wherein the moving mechanism horizontally moves the food.   The cooking device according to any one of claims 1 to 5, further comprising a cooling unit that supplies cooling air to the back surfaces of the medium wavelength infrared heater and the short wavelength infrared heater.

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