JP2009213595A - Grilling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grilling apparatus improved so as to suppress oil stains and improve maintainability. <P>SOLUTION: Since the grilling apparatus 1 includes an electric heating burner 30 having a carbonaceous heating element 31, a reflector 33 spread on the lower surface of the heating element and a transparent pipe 35 enclosing the heating element and the reflector, and an oily smoke protection cover 70 for covering the lower surface of the electric heating burner, contamination of the electric heating burner due to the oily smoke rising from the lower part is prevented. Since the oily smoke does not hit the back side of a transparent heat resistant cover covering the burner, the contamination of the surface is suppressed. Thus, the maintainability is improved. The contamination of the electric heating burner and the transparent heat resistant cover covering the burner due to the oily smoke or the like rising from below is prevented. Further, since the intrusion of cold air from the lower surface and side face of the electric heating burner is obstructed by the oily smoke protection cover, the cooling of the transparent heat resistant cover is prevented and excellent heating efficiency is kept. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lower-fire type pottery device that heats and bakes food from below with a carbonaceous heating element. In particular, the present invention relates to a pottery that has been improved so as to suppress oil stains and improve maintainability.

  Lower-fired pottery is widely used for grilling yakitori and grilled fish. In the past, charcoal and gas fires were the main heat sources. Among these, charcoal fires represented by Bincho charcoal have a far-infrared wavelength suitable for grilling and have a relatively large amount of heat, so they are baked well. However, it was difficult to manage charcoal fire, and many years of experience were necessary to maintain a certain level of firepower.

In recent years, electricity has been frequently used as a heat source for pottery. The following heaters are used.
-Carbonaceous heating elements (carbon heaters, infrared bulbs) that use sintered bodies containing carbon-based materials as heating elements
-Nichrome wire heater using metal resistor-Lamp heater (Colts heater) with tungsten wire coil of heating element inserted into a quartz glass tube and sealed, and inert gas sealed inside
Among these, the peak wavelength of the radiated light emitted from the carbon heater is similar to that of charcoal fire, and coincides with the absorption wavelength of organic substances and moisture constituting the food material. Therefore, the foodstuff can be heated in a short time, and a pottery with good baking quality can be configured.

  Patent Document 1 discloses a heating device (a pottery device) using an infrared light bulb (carbon heater). According to this pottery, a transparent heat-resistant glass plate (heat-resistant cover) formed in an upward convex shape is placed between the carbon heater and the gantry, so that oil and moisture scattered from the object to be heated are infrared bulbs. It can be reliably shielded so that it does not adhere to the surface.

JP 2002-165550 A

  In the above-mentioned pottery disclosed in Patent Document 1, since the high temperature heat-resistant cover prevents oil or the like that hangs down from an object to be heated above from dripping onto the carbon heater, contamination of the carbon heater due to the oil or the like can be prevented. However, since there are open portions below and on the sides of the heat-resistant cover, it is impossible to prevent contamination of the back side of the carbon heater and heat-resistant cover due to oil smoke rising from below. Moreover, since cold air enters from the open part by natural convection and cools the heat-resistant cover, the heating efficiency is lowered. And since the said oil component, oily smoke, etc. adhere easily to the cooled heat-resistant cover, and it sticks and becomes soot, heating efficiency falls and maintenance property worsens further.

  This invention is made | formed in view of the said subject, Comprising: It aims at providing the pottery which added the improvement so that oil stain | pollution | contamination can be suppressed and maintainability can be improved.

  In order to achieve the above object, a pottery of the present invention includes a table on which ingredients to be baked and cooked, an electric heating burner disposed at the lower part of the table, a transparent heat-resistant cover that covers the electric heating burner, The electric heating burner has a carbonaceous heating element, a reflecting plate spreading on the lower surface of the heating element, and a transparent tube enclosing the heating element and the reflecting plate, and further, the electric heating An oil smoke protective cover is provided to cover the lower surface of the burner.

  According to the pottery having such a configuration, since the lower surface of the electric heating burner is covered with the oil smoke protection cover, it is possible to prevent the electric heating burner from being contaminated by the oil smoke rising from below. Moreover, since the oil smoke does not hit the back side of the transparent heat-resistant cover that covers the burner, contamination on the same surface can be suppressed. Therefore, maintainability is improved. Furthermore, since the intrusion of cold air from the lower surface and the side surface of the electric heat burner is hindered by the oil smoke protective cover, cooling of the transparent heat-resistant cover can be prevented and heating efficiency can be improved. As a secondary effect of increasing the heating efficiency of the transparent heat-resistant cover, oil dripping from the object to be heated can be blown off due to the temperature rise on the upper surface of the transparent heat-resistant cover. For this reason, contamination of the upper surface of the transparent heat-resistant cover can also be reduced.

In the pottery of the above form, the oil smoke protection cover has a rising portion that covers a side surface along the longitudinal direction of the electric heating burner, and an upper edge portion of the rising portion is a protruding side edge of the transparent heat-resistant cover. It can be covered with parts.
According to such a configuration, since it is difficult for oil smoke and the like to enter from the gap between the oil smoke protective cover and the transparent heat-resistant cover, the inner surface of the electric heat burner and the transparent heat-resistant cover can be almost completely protected from contamination by the oil smoke and the maintenance performance is improved. Further improve.

In the ceramic ware of the said form, the said smoke protection cover shall have an end surface cover which covers the longitudinal direction end surface of the said electric heating burner.
According to such a configuration, since it becomes difficult for oil smoke and the like to enter from the end surface side of the oil smoke protection cover, the inner surface of the electric heat burner and the transparent heat-resistant cover can be almost completely protected from contamination by the oil smoke and the maintenance performance is further improved. .

  ADVANTAGE OF THE INVENTION According to this invention, the pottery device which added the improvement so that oil stains can be suppressed and maintenance property can be improved can be provided.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the following description, the vertical direction and the horizontal direction refer to directions indicated by arrows in FIGS. 1A, 1B, and 1C unless otherwise specified.

1 (A), (B), (C) are diagrams showing the overall configuration of a pottery according to an embodiment of the present invention, (A) is a plan view, (B) is a front view, and (C) is a plan view. It is a side view.
FIG. 2 is a diagram showing the process of assembling the electric heating burner and the like shown in FIG.
FIGS. 3A, 3B, and 3C are views showing the assembled electric heating burner and the like of FIG. 1, wherein FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. It is.
4 is a cross-sectional view showing the periphery of the burner unit when the pottery device of FIG. 1 is used.

First, the overall structure of the pottery will be described.
The pottery device 1 includes the following main components.
(1) Ceramic ware main body 10: It is formed in a box shape by sheet metal, and the following parts are arranged.
(2) Base 20: A member on which food to be baked is placed, is formed in a rectangular frame shape by sheet metal, and is disposed on the top of the pottery body 10.
(3) Electric heating burner 30: Two electric heating burners 30 are arranged in parallel in the lower part of the base 20. As shown in FIG. 4, the electric heating burner 30 encloses an electrothermal flat carbon heating element 31, a semi-cylindrical reflecting plate 33 spreading on the lower surface of the heating element 31, and the heating element 31 and the reflecting plate 33. The cylindrical transparent tube 35 is provided.

(4) Transparent heat-resistant cover 50: The heat-resistant glass is formed in an upward convex semi-cylindrical shape and is disposed so as to cover the electric heating burner 30.
(5) Smoke protective cover 70: It is formed in a square groove shape and a flat plate shape by sheet metal, and is arranged so as to cover the electric heating burner 30. As shown in FIG. 2, the oil smoke protection cover 70 includes a lower surface protection cover 71 that covers the lower surface of the electric heating burner 30, and a side surface protection cover (rise portion) 72 that rises from both side edges in the longitudinal direction of the cover 71 and covers both sides of the electric heating burner 30. It has. Further, two end face protective covers 73 are provided to cover both end faces of the electric heating burner 30.
(6) Oil receiving tank 90: a member that receives oil or the like that hangs down from the food, is formed in a box shape with an upper surface open by sheet metal, and is disposed below the oil smoke protective cover 70.

  Although the details will be described later, the pottery device 1 according to the present embodiment is characterized in that it includes an oil smoke protection cover 70 that prevents oil smoke rising from below and cold air from entering due to natural convection. Thereby, it is possible to prevent the electric heating burner 30 and the transparent heat-resistant cover 50 from being contaminated by oil smoke rising from below. Further, it is possible to prevent the transparent heat-resistant cover 50 from being cooled by the entry of cold air due to natural convection, and the heating efficiency can be improved.

Details of each part will be described below.
First, the pottery body 10 will be described.
The pottery main body 10 is a rectangular parallelepiped made of, for example, stainless steel sheet, and the upper surface 11 of the main body is formed in a rectangular shape as shown in FIG. A rectangular opening 11a is provided at the approximate center. And the base 20 is attached to the opening 11a, and the electric heating burner 30 is attached to the opening 11a back.

As shown in FIG. 1B, the front surface 12 of the main body is formed in a rectangular shape. A rectangular opening 12a is provided at the lower portion thereof. And the oil receiving tank 90 is inserted in the opening 12a.
As shown in FIGS. 1 (A) and 1 (B), side plates 13 and 14 are arranged in the pottery main body 10 at the lower portions on both sides of the opening 12a. The side plates 13 and 14 support both ends of the electric heating burner 30. A control circuit (not shown) for the electric heating burner 30 is arranged in the section 16 partitioned by the right side plate 14 shown in the drawing and the main body side face 15 shown in the right side of the drawing. A power button 17 is disposed on the front surface 12 side of the compartment 16.

  As shown in FIG. 1C, the main body side surface 15 is formed in a rectangular shape. A plurality of air supply / exhaust ports 15a are provided at the upper and lower portions. The plurality of air supply / exhaust ports 15a supply and exhaust air for cooling the control circuit. Thus, since the control circuit is isolated in the main body 10, it can be protected from contamination by oil or the like.

Next, the base 20 will be described.
The base 20 includes, for example, two left and right flat plates 21 and 22 made of stainless steel and two front and rear vertical plates 23 and 24. Before and after the opening 11a, longitudinal longitudinal plates 23 and 24 extending in the longitudinal direction are erected, and left and right flat plates 21 and 22 extending in the lateral direction are joined to both ends thereof in a rectangular frame shape. By laying and arranging a plurality of skewered ingredients between the front and rear vertical plates 23, 24, baking can be performed easily.

Next, the oil receiving tank 90 will be described.
The oil receiving tank 90 is formed in, for example, a rectangular parallelepiped having an upper surface made of stainless steel. A handle 91 is provided on the upper side of the one side. And it can be freely inserted and removed from the opening 12 a of the pottery main body 10. The oil receiving tank 90 is usually filled with water to receive oil or the like, but when the water becomes dirty, the oil receiving tank 90 can be extracted from the opening 12a, and the water exchange operation is simplified. .

Next, the electric heating burner 30 will be described.
The electrothermal burner 30 includes a cylindrical transparent tube 35 enclosing an electrothermal flat carbon heating element 31 and a semi-cylindrical reflecting plate 33 extending on the lower surface of the heating element 31. The shape of the reflecting plate 33 may be a trapezoidal shape that opens upward and spreads, or an upwardly opening box shape with a rounded C surface at the corner.
The carbonaceous heating element 31 is manufactured by extruding a kneaded raw material into a flat plate shape and firing after drying.
The reflecting plate 33 is manufactured by press-molding a metal thin plate such as stainless steel or aluminum into a semi-cylindrical shape.
The transparent tube 35 is manufactured in a cylindrical shape with one end opened by quartz glass, and a socket 39 having a lead 37 is fitted into the open end.

  After fixing one end of the carbonaceous heating element 31 to the lead 37, the carbonaceous heating element 31 is inserted into the transparent tube 35 together with the reflector 33. Then, after filling the inside of the transparent tube 35 with an inert gas such as argon gas, the socket 39 is fitted into the transparent tube 35. Thus, the electric heating burner 30 is manufactured. Thus, since the reflecting plate 33 is built in the transparent tube 35, it is not necessary to secure an installation space for the reflecting plate outside the electric heating burner 30, and the pottery device 1 can be downsized.

Next, the transparent heat resistant cover 50 will be described.
The transparent heat-resistant cover 50 is manufactured by press-molding a heat-resistant glass plate into an upward convex semicylindrical shape. The reason for making it a semi-cylindrical shape is to make it easier for oil or the like that hangs down from above to spill downward without staying on the cover surface. Therefore, the same effect can be obtained even if pressure-molding into a triangular roof shape.

  Further, both side edges of the transparent heat-resistant cover 50 are formed so as to protrude from the upper edge portion of the oil smoke protective cover 70, and the portions cover the upper edge portion of the cover 70. This makes it difficult for oil smoke or the like to enter from the gap between the transparent heat resistant cover 50 and the oil smoke protective cover 70. For this reason, the electric heating burner 30 and the inner surface of the cover 50 can be almost completely protected from contamination by the oily smoke and the like, and the maintainability is further improved.

Next, the oil smoke protective cover 70 will be described.
The oil smoke protection cover 70 includes a lower surface protection cover 71, a side surface protection cover 72, and an end surface protection cover 73.
The lower surface protection cover 71 and the side surface protection cover 72 are manufactured by press-molding, for example, a metal plate such as stainless steel into a square groove shape. That is, the side protective cover 72 is integrally formed so as to rise from both side edges in the longitudinal direction of the lower protective cover 71.

  The end face protection cover 73 is manufactured by punching and molding a metal plate such as stainless steel. The end surface protective cover 73 is formed by combining an arcuate portion 73a (see FIG. 2) that is the same as the cross section of the transparent heat resistant cover 50 and a rectangular portion 73b (see FIG. 2) that is slightly larger than the cross section of the lower surface protective cover 71. It is formed in a different shape. Two holes 73c (see FIG. 2) from which the socket 39 side of the electric heating burner 30 protrudes are formed in the center of the end face protection cover 73.

  As a result, the lower surface and the side surface of the electric heating burner 30 are covered, so that contamination of the electric heating burner 30 due to oil smoke rising from below can be prevented, and contamination of the transparent heat-resistant cover 50 covering the burner 30 can be suppressed, thereby improving maintainability. . Furthermore, since the intrusion of cold air from the lower surface and side surface of the electric heating burner 30 is hindered by the oil smoke protective cover 70, the transparent heat resistant cover 50 can be prevented from being cooled and the heating efficiency can be kept good.

Here, the process of assembling the electric heating burner 30, the transparent heat resistant cover 50, and the oil smoke protective cover 70 described above as a burner unit will be described mainly with reference to FIGS.
As shown in FIG. 2, the two electrothermal burners 30 are juxtaposed, and the end side where the socket 39 is not fitted is inserted into the two holes 73 c of the first end face protective cover 73. Then, the end face protective cover 73 is positioned at a predetermined position near the socket 39. Further, the end side to which the socket 39 is not fitted is inserted into the two holes 73 c of the second end face protection cover 73. Then, the end face protective cover 73 is positioned at a predetermined position in the vicinity of the end where the socket 39 is not fitted.

  Then, the arc-shaped portions 73a of the two end face protection covers 73 are formed so that the transparent heat-resistant cover 50 is convex upward so as to cover the electric heating burner 30 over the entire surface of the cover 50. Arrange to cover. Subsequently, the lower surface protective cover 71 is convex downward so that the entire surface of the cover 71 covers the lower portion of the electric heating burner 30, and both ends of the cover 71 are rectangular portions 73b of the two side surface protective covers 73. Place it so that it touches. Thus, as shown in FIG. 3, the burner unit in which the periphery of the main portion of the electric heating burner 30 (the portion exposed from the opening 11a) is covered is completed.

A process of manufacturing the pottery device 1 by assembling the table 20, the electric heating burner 30, the transparent heat-resistant cover 50, the oil smoke protection cover 70, and the oil receiving tank 90 configured as described above to the pottery main body 10 will be described.
First, two electric heating burners 30 are juxtaposed, and the end portion side where the socket 39 is not fitted is inserted into two holes (not shown) provided in the side plate 14 of the pottery main body 10. Then, the above-described burner unit is assembled. When the burner unit is completed, the end portion side where the socket 39 is not fitted is inserted into two holes (not shown) provided in the side plate 13 of the pottery main body 10, and the lead 37 and the control circuit (not shown) are inserted. ).

  Next, the table 20 is placed on the edge of the opening 11 a of the ceramic body 10 and fixed to the upper surface 11 with screws. Then, the oil receiving tank 90 is inserted into the pottery main body 10 from the opening 11b of the pottery main body 10, and the entire tank is accommodated in the pottery main body 10. Thus, the pottery device 1 shown in FIG. 1 is completed.

The operation and effect of each part of the pottery 1 having the above-described configuration will be described mainly based on FIG.
The infrared emissivity of the carbonaceous heating element 31 of the electric heating burner 30 is 0.86, which is close to the emissivity of black body 1.0. Since the reflecting plate 33 is enclosed in the transparent tube 35, the reflection efficiency is excellent, and the radiation energy from the carbonaceous heating element 31 can be used almost 100%. For this reason, the radiated infrared rays can be used with high efficiency, and an energy-saving and compact ceramic device 1 can be obtained.

  The transparent heat-resistant cover 50 has a convex shape protruding upward, and is configured to be irradiated from below by the electric heating burner 30. Thereby, since the peripheral part of the vertex of the convex surface of the transparent heat-resistant cover 50 is at a high temperature of, for example, 400 ° C. or more, the falling oil p or the like does not splash and adhere on the surface of the cover 50. Further, even if oil or the like p adheres to the surface of the cover 50, it is highly fluid, and therefore flows down to the peripheral portions on both sides with a slight inclination of the convex surface of the cover 50.

  And since the temperature of the peripheral part on both sides of the convex surface of the cover 50 is lower than that of the peripheral part of the apex, the fluidity of the oil component p that has flowed down becomes low. However, since the inclination of the peripheral part on both sides is steeper than the inclination of the peripheral part of the apex, the oil component p flows further downward from the peripheral parts on both sides, falls at both edges, and is received by the oil receiving tank 90. For this reason, it is possible to prevent contamination of the electric heat burner 30 due to the oil content p and the like, and to reduce contamination of the transparent heat-resistant cover 50, and to make the pottery 1 having high maintainability.

  The transparent heat-resistant cover 50 covers the upper portion of the electric heating burner 30, while the lower surface protective cover 71, the side surface protective cover 72, and the end surface protective cover 73 of the oil smoke protective cover 70 cover the lower side and the side (four sides) of the electric heat burner 30. It is configured. Thereby, the oil smoke q etc. which stand up from the lower part can be shielded.

  Therefore, contamination of the electric heat burner 30 due to oil smoke or the like q can be prevented and contamination of the transparent heat-resistant cover 50 can be reduced, and the pottery device 1 having high maintainability can be obtained. In particular, it is not necessary to clean the electric heating burner 30. Moreover, since the penetration of the cold air r from below or from the side is prevented and the hot air s of the electric heating burner 30 is not released, the cooling of the transparent heat-resistant cover 50 can be prevented and the heating efficiency can be kept good.

  In the above-described embodiment, the electric heating burner 30 is arranged so as to extend in the left-right direction of the pottery main body 10 as shown in FIG. 1A, but is arranged so as to extend in a direction perpendicular to the left-right direction. You may do it. In addition, although two electric heating burners 30 are arranged, an arbitrary number of electric heating burners 30 may be arranged as long as they can be arranged in an arrangement space such as four or eight.

  In addition, although the electric heating burner 30 with a built-in reflector 33 is used, an infrared reflecting film may be formed on the surface of the transparent tube 35 or about a half of the inner surface. As a material for the infrared reflecting film, a gold thin film or a titanium nitride thin film is preferable. Further, a semiconductor thin film such as tin oxide or indium oxide, a multilayer coating such as titanium oxide-silicon dioxide, or the like can also be used.

1 (A), (B), (C) are diagrams showing the overall configuration of a pottery according to an embodiment of the present invention, (A) is a plan view, (B) is a front view, and (C) is a plan view. It is a side view. FIG. 2 is a view showing an assembly process of the electric heating burner and the like shown in FIG. 3 (A), (B), and (C) are views showing the assembled electric heating burner and the like of FIG. 1, (A) is a plan view, (B) is a front view, and (C) is a side view. is there. FIG. 4 is a cross-sectional view showing the periphery of the burner unit when the pottery device of FIG. 1 is used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ceramic ware, 10 ... Ceramic ware main body, 11 ... Main body upper surface, 12 ... Main body front surface, 11a, 12a ... Opening, 13, 14 ... Side plate, 15 ... Main body Side surface, 15a ... Air supply / exhaust port, 16 ... Partition, 17 ... Power button, 20 ... Table, 30 ... Electric heating burner, 31 ... Carbonaceous heating element, 33 ... Reflection Plate: 35 ... Transparent tube, 37 ... Lead, 39 ... Socket, 50 ... Transparent heat-resistant cover, 70 ... Oil smoke protection cover, 71 ... Bottom protection cover, 72 ... Side Protective cover 73 ... End face protective cover 90 ... Oil receiving tank

Claims (3)

A table on which ingredients to be baked are placed;
An electric heating burner located at the bottom of the table;
A transparent heat-resistant cover covering the electric heating burner;
A pottery comprising:
The electric heating burner has a carbonaceous heating element, a reflecting plate extending on the lower surface of the heating element, and a transparent tube enclosing the heating element and the reflecting plate,
Furthermore, the pottery device provided with the oil smoke protection cover which covers the lower surface of the said electric heating burner.   The oil smoke protective cover has a rising portion that covers a side surface along the longitudinal direction of the electric heating burner, and the upper edge portion of the rising portion is covered with a protruding portion of the side edge of the transparent heat-resistant cover. The pottery device according to claim 1, characterized in that:   The pottery device according to claim 1 or 2, wherein the oil smoke protective cover has an end face cover that covers a longitudinal end face of the electric heating burner.

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