JP2008093343A - Lightweight stone dish to be hardly cooled - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight and handleable stone dish, and to develop the stone dish to be used even in an IH cooking heater. <P>SOLUTION: The bottom surface of the stone dish, which is commercially available and whose circumferential part is enclosed with aluminum casting, is thinly ground, and an aluminum or ceramic plate is fitted into the ground part, so that the lightweight stone dish with high heating efficiency is provided, while keeping heat insulation. A carbon plate is used in place of the aluminum or ceramic plate in order to attain correspondence to the IH cooking heater. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to improvement of stone tableware, and is intended to reduce weight and cope with IH cooking heaters.

  2. Description of the Related Art Conventionally, as a stone dish for steaks, an outer periphery of a stone disc is cast with an aluminum casting and is rimmed. The thickness of the stone plate is about 10 mm, so it is difficult to cool down once heated, and there is a far-infrared radiation, so you can enjoy delicious food. However, it is difficult to handle due to its weight, and if the thickness of the stone plate is reduced in order to reduce the weight, the stone plate is damaged by the shrinkage of aluminum when combined with the aluminum casting, and the weight cannot be reduced.

  When using conventional stone dishes in the restaurant industry, there are disadvantages such as heavy handling and inconvenience, heating time, and inability to heat with an IH cooking heater. The present invention describes how to reduce the weight of a stone dish framed with a conventional aluminum casting while maintaining its heat retaining capability, and how to enable heating with an IH cooking heater. It was an issue.

  If a stone plate edged with an aluminum casting has a thickness of 10 mm or less, when the outer periphery of the stone plate is cast with aluminum, it is likely to be damaged by the force when the aluminum shrinks. Milli stone plates are commercially available. In the present invention, instead of reducing the thickness of the stone plate and casting it with aluminum, a stone with a thickness of 10 mm on a commercially available stone plate is shaved from the back surface to 4 mm, and the shaved portion is used instead of the stone plate. The problem was solved by inserting an aluminum disc that is lightweight, has heat retention, and can be heated faster than stone. In order to be able to heat with an IH cooking heater, a carbon plate may be inserted instead of an aluminum plate.

  The advantage of the stone dish is that it is one of the dishes that you want to use in the restaurant industry as a steak dish that has a sense of luxury different from that of a cast iron tableware and that emits far infrared rays and requires heat retention. However, conventional stone dishes have not been adopted because the stone plates are thick and heavy. By realizing a stone dish having a light weight and heat retention by the present invention, it can be used in the restaurant industry. In addition, with the electrification of the kitchen, there was also a request to heat the stone dish with an IH cooking heater, but this request can be met by changing the heating plate to carbon.

  The material of the stone is a feldspar that is not easily broken by heat and is widely used in bibimbap cuisine. Since feldspar is hard but brittle, if the outer periphery is cast with aluminum, it will be damaged by the force when aluminum contracts. Therefore, it is necessary to use a stone plate having a thickness of about 10 mm so that the stone does not break. In order to make it lighter, it is realistic to scrape the cast stone plate to make it thinner, and it takes time and effort, but it can be processed reliably. Since the heat retention is lost when the stone is thinned, the heat retention is lost, so the weight was successfully reduced by using aluminum that is lighter, larger in heat retention, and more efficient in heating. Since the time you want to keep warm depends on the dish, set the thickness of the aluminum plate to the desired thickness, and cut the stone plate into the thinned part.

  Moreover, in order to be able to heat with an IH cooking heater, a carbon plate may be inserted instead of an aluminum plate. The carbon plate generates heat in the same way as iron with an IH heater. However, when heated like an iron plate, it does not warp and remains flat, so it keeps in close contact with the bottom of the stone plate, so it generates heat with carbon. Heat can be efficiently transferred to the stone plate and heated.

  FIG. 1 is a cross-sectional view of a commercially available stone dish, where (1) is a stone plate having a thickness of 10 mm. (2) is an aluminum casting cast around a stone plate. FIG. 2 shows an embodiment of the present invention in which the stone plate (1) of FIG. 1 is thinly cut and an aluminum plate (3) is fitted into the cut portion, and the aluminum plate (3) is made of an outer aluminum casting and (6). It is integrated by welding at the part.

  FIG. 3 shows a case in which a carbon plate (4) is fitted into a portion where a stone plate is cut, and small pieces of aluminum (5) are welded to 3 to 4 locations on the outer peripheral portion in order to fix the carbon plate (4). . The weight of a commercially available stone dish is 1530 grams, but the weight of a stone dish made by cutting a stone plate to a thickness of 4 mm is 658 grams, and the weight of an embodiment fitted with a carbon plate is 1110 grams. The weight has been significantly reduced.

  The present invention is useful as a lightweight stone dish that is easy to handle in the restaurant industry, and as a stone dish that can be used in an electrified kitchen.

It is sectional drawing of the stone dish currently marketed. It is sectional drawing of one Example of the stone plate of this invention. It is sectional drawing of the Example of the stone plate made to respond | correspond to an IH cooking heater.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stone plate 2 Aluminum casting cast around stone plate 3 Aluminum plate inserted in the bottom of stone plate 4 Carbon plate inserted in the bottom of stone plate 5 Aluminum piece for fixing carbon plate 6 Inserted aluminum Welded part of plate and surrounding aluminum casting

Claims (2)

  A stone plate made of a round stone plate and an aluminum casting. A stone plate made of a thin stone plate, and an aluminum plate, a ceramic plate, etc. installed on the cut portion.   The stone plate according to claim 1, wherein a carbon plate is installed instead of an aluminum plate or a ceramic plate, but the plate is light but difficult to cool.

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