JP6621180B2

JP6621180B2 - Heating tool

Info

Publication number: JP6621180B2
Application number: JP2016225460A
Authority: JP
Inventors: 芳隆近久
Original assignee: 芳隆近久
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2019-12-18
Anticipated expiration: 2036-11-18
Also published as: JP2018079245A

Description

本発明は、食材の加熱等に用いられる加熱具に関する。 The present invention relates to a heating tool used for heating foods and the like.

肉や魚、野菜などの加熱には鉄製のプレート等が用いられている。固形燃料を用いた小型の加熱具は、三脚などの上に鉄板を載せて下面から加熱し、上面に肉や野菜などのを載せて調理する。 Iron plates and the like are used for heating meat, fish, vegetables and the like. A small heating tool using solid fuel is prepared by placing an iron plate on a tripod or the like and heating it from the bottom, and placing meat or vegetables on the top.

しかしながら、鉄板では熱伝導が高すぎて高温になるため、必ずしも適切な焼き加減に調整することができない。 However, since heat conduction is too high in an iron plate, it becomes a high temperature, so it cannot always be adjusted to appropriate baking.

そこで、より低温で均一に加熱が可能な石板を用いることが考えられる。しかしながら、石板は熱膨張係数が低く、加熱すると割れてしまう結果、使い捨てになってしまうという問題があった。 Therefore, it is conceivable to use a stone plate that can be uniformly heated at a lower temperature. However, the stone plate has a low coefficient of thermal expansion and cracks when heated, resulting in a problem of being disposable.

一方で、石材の加工時には廃材が多く発生するという問題があった。例えば石製の製品の製造時には小さな石片が多数発生している。これらは産業廃棄物となるため、その処理に莫大な費用を要する。特に近年は海外産の安価な石材が輸入されているという実情もあり、石材の加工時に必然的に生じる産業廃棄物の処理費用が価格競争力を著しく阻害している。 On the other hand, there has been a problem that a large amount of waste material is generated when processing stone. For example, many small stone pieces are generated during the manufacture of stone products. Since these are industrial wastes, the processing costs are enormous. In particular, in recent years, there is a fact that cheap stones from overseas have been imported, and the cost of industrial waste inevitably generated during the processing of stones has significantly hindered price competitiveness.

また一方で、録泥片岩等の青石は、日本建築の基礎部分や石積み等に多用されてきた。しかしながら、このような青石を用いた家屋の再建時には、産業廃棄物として青石が大量に排出されることになる。このような青石をリサイクルするには、小さく粉砕しなければ引き取って貰えないため、その処理費用が莫大となり再建時の負担となっていた。このため、このような石材の廃材の再利用が促進されれば、産廃処理費用を抑制でき、国内の石材加工業においては大きな利点となりうる。 On the other hand, blue stones such as recording mud schist have been used extensively for foundations and masonry of Japanese architecture. However, when rebuilding a house using such a stone, a large amount of the stone is discharged as industrial waste. In order to recycle such a stone, it cannot be collected unless it is pulverized to a small size, so that the processing cost is enormous and it has been a burden at the time of reconstruction. For this reason, if the reuse of such stone waste is promoted, industrial waste treatment costs can be reduced, which can be a great advantage in the domestic stone processing industry.

特開２００９−２２６１７２号公報JP 2009-226172 A

本発明は、このような背景に鑑みてなされたものであり、その目的の一は、石板を用いた安価な加熱具を提供することにある。 The present invention has been made in view of such a background, and an object of the present invention is to provide an inexpensive heating tool using a stone plate.

Means for Solving the Problems and Effects of the Invention

本発明の第１の形態に係る石板を用いた加熱具によれば、加熱対象物を載せるための載置面と、前記載置面と対向する、加熱されるための加熱面とを有する板状の石板を備える加熱具であって、前記載置面の中央部分から前記加熱面に貫通する貫通孔が開口され、前記載置面において、前記貫通孔から、石目に沿って端縁まで延長された、前記石板を部分的に肉薄にする載置側溝部を形成することができる。上記構成により、加熱によるひび割れ等を貫通孔から連通した載置側溝部及び加熱側溝部内に案内することができ、ひび割れを目立たなくして繰り返し利用可能な加熱具を構成できる。 According to the heating tool using the stone plate according to the first embodiment of the present invention, a plate having a placement surface for placing a heating object and a heating surface to be heated facing the placement surface. A heating tool comprising a shaped stone plate, wherein a through hole penetrating from the central portion of the mounting surface to the heating surface is opened, and in the mounting surface, from the through hole to an edge along a grain It is possible to form an extended placement side groove that partially thins the stone plate. By the said structure, the crack by heating etc. can be guided in the mounting side groove part and heating side groove part which were connected from the through-hole, and the heating tool which can be repeatedly used without making a crack conspicuous can be comprised.

また本発明の第２の形態に係る石板を用いた加熱具によれば、前記石板が、前記加熱面において、前記貫通孔から、石目に沿って端縁まで延長された、前記石板を部分的に肉薄にする加熱側溝部を形成することができる。 Moreover, according to the heating tool using the stone plate according to the second aspect of the present invention, the stone plate partially extends from the through hole to the edge along the grain on the heating surface. The heating side groove part which makes it thin thinly can be formed.

さらに、本発明の第３の形態に係る石板を用いた加熱具によれば、前記載置側溝部と加熱側溝部を、対向する位置に形成することができる。上記構成により、貫通孔から連通された載置側溝部と加熱側溝部を同じ部位として、微小なひび割れ等が生じても、予め破断されたこれらの貫通孔や溝部が起点となるように誘導することができ、結果的にひび割れを奥まった溝内に留めおくことで、外見上の破損を目立たなくでき、繰り返し利用可能な加熱具を構成できる。 Furthermore, according to the heating tool using the stone plate according to the third embodiment of the present invention, the placement side groove portion and the heating side groove portion can be formed at opposing positions. With the above-described configuration, the placement side groove portion and the heating side groove portion communicated from the through hole are used as the same part, and even if a minute crack or the like occurs, the through hole or groove portion that has been fractured in advance is guided as a starting point. As a result, by keeping the crack in the recessed groove, the appearance damage can be made inconspicuous, and a reusable heating tool can be configured.

さらにまた、本発明の第４の形態に係る石板を用いた加熱具によれば、加熱対象物を載せるための載置面と、前記載置面と対向する、加熱されるための加熱面とを有する板状の石板を備える加熱具であって、前記載置面の中央部分から、前記石板の石目に沿って端縁まで延長された、該石板を部分的に切り欠いたスリット状の溝部を形成することができる。
Furthermore, according to the heating tool using the stone plate according to the fourth embodiment of the present invention, the mounting surface for placing the heating object, and the heating surface for heating facing the mounting surface described above A heating tool comprising a plate-like stone plate having a slit-like shape extending from the center portion of the mounting surface to the edge along the grain of the stone plate, partially cut out from the stone plate. A groove can be formed.

さらにまた、本発明の第５の形態に係る石板を用いた加熱具によれば、前記載置面において、前記貫通孔を中心とするドーム状の窪みを形成することができる。
Furthermore, according to the heating tool using the stone plate according to the fifth embodiment of the present invention, a dome-shaped depression centered on the through hole can be formed on the mounting surface.

さらにまた、本発明の第６の形態に係る石板を用いた加熱具によれば、前記石板を緑泥片岩、溶岩石、花崗岩、角閃石岩のいずれかで形成することができる。上記構成により、粘りや撓りを有する石板によって加熱しても割れにくく、繰り返し利用可能な加熱具を構成できる。
Furthermore, according to the heating tool using the stone plate according to the sixth aspect of the present invention, the stone plate can be formed of any one of chlorite schist, lava stone, granite, and amphibolite. By the said structure, even if it heats with the stone board which has stickiness and a bending, it is hard to be broken, and the heating tool which can be utilized repeatedly can be comprised.

さらにまた、本発明の第７の形態に係る石板を用いた加熱具によれば、前記石板の厚さを、５ｍｍ〜３０ｍｍとできる。
Furthermore, according to the heating tool using the stone plate which concerns on the 7th form of this invention, the thickness of the said stone plate can be 5 mm-30 mm.

さらにまた、本発明の第８の形態に係る石板を用いた加熱具によれば、前記加熱面を、固形燃料又は炭火で加熱されるための面とできる。
Furthermore, according to the heating tool using the stone board concerning the 8th form of this invention, the said heating surface can be made into the surface for heating with a solid fuel or a charcoal fire.

さらにまた、本発明の第９の形態に係る石板を用いた加熱具によれば、さらに、前記石板と離間して配置される台座部と、前記台座部と石板との間に介在される枠体とを備えており、前記台座部と枠体を、前記石板と同じ材質で形成することができる。上記構成により、台座部上に固形燃料などの発熱体を配置して、石板の加熱面を効率よく加熱することが可能となる。
Furthermore, according to the heating tool using the stone plate according to the ninth aspect of the present invention, a pedestal portion that is disposed apart from the stone plate, and a frame that is interposed between the pedestal portion and the stone plate. And the pedestal portion and the frame body can be formed of the same material as the stone plate. With the above configuration, a heating element such as a solid fuel can be disposed on the pedestal portion to efficiently heat the heating surface of the stone plate.

さらにまた、本発明の第１０の形態に係る石板を用いた加熱具によれば、前記枠体を、平面視においてコ字状に形成することができる。上記構成により、枠体のコ字状の開口部分から固形燃料などの発熱体を台座部上に挿入、取り出しすることが容易となる。 Furthermore, according to the heating tool using the stone plate according to the tenth embodiment of the present invention, the frame body can be formed in a U shape in plan view. With the above configuration, it becomes easy to insert and remove a heating element such as solid fuel from the U-shaped opening of the frame body on the pedestal.

本発明の実施形態１に係る加熱具を示す斜視図である。It is a perspective view which shows the heating tool which concerns on Embodiment 1 of this invention. 図１の加熱具を背面側から見た斜視図である。It is the perspective view which looked at the heating tool of FIG. 1 from the back side. 図１の石板を用いて食材を加熱する様子を示す分解斜視図である。It is a disassembled perspective view which shows a mode that a foodstuff is heated using the stone plate of FIG. 図１のＩＶ−ＩＶ線における垂直断面図である。FIG. 4 is a vertical sectional view taken along line IV-IV in FIG. 1. 変形例に係る加熱具の平面図である。It is a top view of the heating tool which concerns on a modification. 図１の加熱具の平面図である。It is a top view of the heating tool of FIG. 他の変形例に係る加熱具の平面図である。It is a top view of the heating tool which concerns on another modification. さらに他の変形例に係る加熱具の平面図である。It is a top view of the heating tool which concerns on another modification. さらに他の変形例に係る加熱具の平面図である。It is a top view of the heating tool which concerns on another modification. 本発明の実施形態２に係る加熱具を示す斜視図である。It is a perspective view which shows the heating tool which concerns on Embodiment 2 of this invention. 本発明の実施形態３に係る加熱具を示す斜視図である。It is a perspective view which shows the heating tool which concerns on Embodiment 3 of this invention. 本発明の実施形態４に係る加熱具を示す斜視図である。It is a perspective view which shows the heating tool which concerns on Embodiment 4 of this invention. 図１１の石板に枠体と台座部を組み合わせた加熱具を示す斜視図である。It is a perspective view which shows the heating tool which combined the frame and the base part with the stone plate of FIG. 図１３の加熱具の分解斜視図である。It is a disassembled perspective view of the heating tool of FIG. 他の変形例に係る加熱具の分解斜視図である。It is a disassembled perspective view of the heating tool which concerns on another modification.

以下、本発明に係る実施形態及び実施例を、図面に基づいて説明する。ただし、以下に示す実施形態及び実施例は、本発明の技術思想を具体化するための例示であって、本発明は以下のものに限定されるものでない。また各図面が示す部材の大きさや位置関係等は、説明を明確にするため誇張していることがある。さらに以下の説明において、同一の名称、符号については同一もしくは同質の部材を示しており、詳細説明を適宜省略する。さらに、本発明に係る実施形態及び実施例を構成する各要素は、複数の要素を同一の部材で構成して一の部材で複数の要素を兼用する態様としてもよいし、逆に一の部材の機能を複数の部材で分担して実現することもできる。また、一部の実施例、実施形態において説明された内容は、他の実施例、実施形態等に利用可能なものもある。
（実施形態１） DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments and examples according to the present invention will be described with reference to the drawings. However, the following embodiments and examples are examples for embodying the technical idea of the present invention, and the present invention is not limited to the following. In addition, the size, positional relationship, and the like of members illustrated in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the embodiment and the example according to the present invention may be configured such that a plurality of elements are constituted by the same member and a plurality of elements are shared by one member, and conversely, one member. This function can also be realized by sharing a plurality of members. In addition, the contents described in some examples and embodiments may be used in other examples and embodiments.
(Embodiment 1)

図１に、本発明の実施形態１に係る加熱具１００を斜め上方から見た斜視図を、図２にこの加熱具１００を斜め下方から見た斜視図を、図３にこの加熱具１００の使用例を、図４に図１のＩＶ−ＩＶ線における垂直断面図を、それぞれ示す。これらの図に示すように、加熱具１００は、板状に形成された石製の石板で構成される。この石板は、上面を加熱対象物ＯＢを載せるための載置面１１とし、下面を加熱されるための加熱面２１としており、熱伝導によって下面から受けた熱でもって上面に載置した加熱対象物ＯＢを加熱する。 FIG. 1 is a perspective view of the heating tool 100 according to the first embodiment of the present invention as viewed obliquely from above, FIG. 2 is a perspective view of the heating tool 100 as viewed from diagonally below, and FIG. FIG. 4 is a vertical sectional view taken along line IV-IV in FIG. As shown in these drawings, the heating tool 100 is configured by a stone stone plate formed in a plate shape. This stone plate has an upper surface as a mounting surface 11 on which the object to be heated OB is placed and a lower surface as a heating surface 21 to be heated, and the heating target placed on the upper surface with heat received from the lower surface by heat conduction. The object OB is heated.

加熱対象物ＯＢは、肉や魚、野菜などの食材が挙げられる。食材を加熱する加熱具１００は、例えば自宅やレストランなどで提供される、個人用の調理具として好適に利用できる。この場合、石板の下面には、固形燃料ＦＴが配置され、固形燃料ＦＴと石板とを離間させるためのスタンドＳＴが用いられる。スタンドＳＴは、金属製や石製など、既存のものが適宜利用できる。 Examples of the heating object OB include ingredients such as meat, fish, and vegetables. The heating tool 100 that heats food can be suitably used as a personal cooking tool that is provided, for example, at home or in a restaurant. In this case, a solid fuel FT is disposed on the lower surface of the stone plate, and a stand ST for separating the solid fuel FT and the stone plate is used. As the stand ST, an existing one such as metal or stone can be used as appropriate.

石板の平面形状は、特に限定されず、矩形状や多角形状、円形や楕円形状等、任意の形状が利用できる。図１、図２の例では、正方形状としている。 The planar shape of the stone plate is not particularly limited, and an arbitrary shape such as a rectangular shape, a polygonal shape, a circular shape or an elliptical shape can be used. In the example of FIG. 1 and FIG.

この石板は、好ましくは緑泥片岩や溶岩石、花崗岩、角閃石岩等で形成される。特に緑泥片岩は粘性が高いため繰り返し加熱されても割れ難い。また緑色で美しいため美観にも優れる。
（貫通孔１） This stone plate is preferably formed of chlorite schist, lava stone, granite, amphibolite or the like. In particular, chlorite schist has high viscosity and is difficult to break even when repeatedly heated. It is also green and beautiful, so it has an excellent aesthetic appearance.
(Through hole 1)

石板の中央には、貫通孔１が形成されている。貫通孔１は載置面１１と加熱面２１に連通される。貫通孔１の形状は、好ましくは円筒状とする。貫通孔の内径は、好ましくは１ｍｍ〜５ｍｍ、より好ましくは３．５ｍｍ〜４ｍｍとする。貫通孔を設けたことで、石板の加熱時の変形に対する応力を緩和することができる。また、石板の加熱面側に配置した発熱体を、貫通孔を通じて上方から視認できる。
（載置側溝部１２） A through hole 1 is formed in the center of the stone plate. The through hole 1 communicates with the placement surface 11 and the heating surface 21. The shape of the through hole 1 is preferably cylindrical. The inner diameter of the through hole is preferably 1 mm to 5 mm, more preferably 3.5 mm to 4 mm. By providing the through hole, it is possible to relieve stress against deformation during heating of the stone plate. Moreover, the heat generating body arrange | positioned at the heating surface side of a stone plate can be visually recognized from upper direction through a through-hole.
(Mounting side groove 12)

また載置面１１においては、図１に示すように貫通孔１から端縁まで延長された載置側溝部１２を形成している。載置側溝部１２は溝状に形成され、石板を部分的に肉薄にしている。さらに加熱面２１においては、図２に示すように同じく貫通孔１から端縁まで延長された加熱側溝部２２を形成している。加熱側溝部２２も溝状に形成され、石板を部分的に肉薄にしている。これら載置側溝部１２、加熱側溝部２２は、石板の石目に沿うように形成されている。これにより、溝部を形成する際に石板に割れが生じることを抑制できる。石にも木材の木目（柾目、板目）等と同様に、方向性を有する石目があることが知られており、この内石目に沿って溝部を形成することで、割れの発生を抑制できる。 Further, on the placement surface 11, as shown in FIG. 1, a placement-side groove portion 12 extending from the through hole 1 to the end edge is formed. The placement side groove portion 12 is formed in a groove shape, and the stone plate is partially thinned. Further, on the heating surface 21, as shown in FIG. 2, a heating-side groove portion 22 that is similarly extended from the through hole 1 to the edge is formed. The heating side groove portion 22 is also formed in a groove shape, and the stone plate is partially thinned. The placement side groove portion 12 and the heating side groove portion 22 are formed so as to follow the grain of the stone plate. Thereby, it can suppress that a crack arises in a stone plate when forming a groove part. It is known that there are stones with directionality in the same way as the grain of wood (crustaceae, plate grain), etc., and the formation of grooves along the inner stones prevents cracks from occurring. Can be suppressed.

なお載置側溝部１２は、必ずしも貫通孔１と石板の一方の端縁までの間にのみ形成する必要はなく、他の部位に形成することもできる。例えば図５の変形例に示すように、石板の端縁から貫通孔１まで設けられた載置側溝部１２をさらにｄ₀だけ延長して、貫通孔１に対して反対側にまで延長させてもよい。 The placement-side groove portion 12 is not necessarily formed only between the through hole 1 and one end edge of the stone plate, and can be formed at another portion. For example, as shown in the modification of FIG. 5, the placement side groove 12 provided from the edge of the stone plate to the through hole 1 is further extended by d _{0 and} extended to the opposite side with respect to the through hole 1. Also good.

さらに、図３に示すような使用時において石板が加熱されることでひび割れ等が生じても、予め貫通することで破断された貫通孔１及びここから連通された載置側溝部１２及び加熱側溝部２２内にひび割れの発生を誘導することができる。この結果、仮に微小なひび割れが生じてもこれら溝部の内部に留めることで、ひび割れを目立たなくして、繰り返し利用可能とできる。すなわち、図６の平面図に示すように、加熱によって石板が矢印で示す方向に変形しようとする際、その応力やひずみを肉薄にした載置側溝部１２で吸収する。具体的には、変形時に生じる微小なひび割れや亀裂等を、肉薄にした載置側溝部１２に集中させ、かつ載置側溝部１２を石板の表面から窪ませることで、他の表面と比べて目立たなくできるので、繰り返しの使用に耐えることができる。 Further, even if cracks or the like occur due to heating of the stone plate during use as shown in FIG. 3, the through-hole 1 that has been broken by penetrating in advance, the mounting-side groove portion 12 and the heating-side groove communicated from here. The occurrence of cracks can be induced in the portion 22. As a result, even if a minute crack is generated, the crack can be made inconspicuous and can be used repeatedly by being kept inside these grooves. That is, as shown in the plan view of FIG. 6, when the stone plate is deformed by heating in the direction indicated by the arrow, the stress and strain are absorbed by the mounting side groove portion 12 which is thinned. Specifically, by concentrating minute cracks, cracks, etc. that occur during deformation in the mounting groove 12 that has been thinned and by denting the mounting groove 12 from the surface of the stone plate, compared to other surfaces Since it is inconspicuous, it can withstand repeated use.

加えて、載置面１１の載置側溝部１２を、食材の加熱時に油脂分や水分、たれの余剰分等を誘い込む溝としても利用できる。載置側溝部１２の端縁は、図４の断面図に示すように、石板の端縁近傍で、石板の端縁側に進むほど深くなるように傾斜させることが好ましい。このように傾斜面１３を形成することで、載置側溝部１２に集められた油脂分などを、石板の端縁から自重により自然に排出できる。 In addition, the placement-side groove portion 12 of the placement surface 11 can also be used as a groove that invites oil and fat, moisture, excess dripping, and the like when the food is heated. As shown in the cross-sectional view of FIG. 4, it is preferable that the end edge of the mounting-side groove portion 12 is inclined in the vicinity of the edge of the stone plate so as to become deeper toward the edge side of the stone plate. By forming the inclined surface 13 in this manner, the oil and fat collected in the placement side groove portion 12 can be naturally discharged from the edge of the stone plate by its own weight.

なお図６の平面図に示す例では、傾斜面１３を設けた載置側溝部１２内部の端縁を、石板の端縁から若干窪ませて切り欠き状１５としている。この切り欠き状１５の深さｄ₁は、例えば図７の変形例に示すように大きくしてもよい。このように切り欠き状１５の深さｄ₂を深くすることで、石板の加熱時により変形し易くして応力緩和の作用を高めることができる。
（変形例） In the example shown in the plan view of FIG. 6, the end edge inside the placement side groove portion 12 provided with the inclined surface 13 is slightly recessed from the end edge of the stone plate to form a cutout shape 15. The depth d ₁ of the notch 15 may be increased as shown in the modification of FIG. By increasing the depth d ₂ of the notch 15 in this way, the stone plate can be more easily deformed during heating and the stress relaxation action can be enhanced.
(Modification)

さらに図８の他の変形例に示すように、切り欠き状１５Ｂをより深くして、貫通孔と連通するようにしてもよい。いいかえると、貫通孔１と載置側溝部１２とを一体的に構成して、載置側溝部１２に沿って深さｄ₃の切り欠き状１５を形成することもできる。この切り欠き状１５Ｂは、スリット状の溝部を形成している。この構成であれば、加熱時の石板の変形に対する応力緩和の作用を更に発揮でき、ひび割れなどの発生を抑制できる。また、石板の加熱面側に配置した発熱体を、貫通孔に比べてスリット状の溝部を通じて一層視認し易くなり、例えば発熱体に固形燃料を使用する場合は、炎が消えたことを使用者が石板の下を覗き込むことなく、頭を少し動かすだけで上方から確認できるようになり、より便利に使用できる。本明細書においてはこのような、貫通孔と載置側溝部とを一体的に構成する例も、請求項でいう貫通孔が載置面の中央部分から加熱面に貫通し、載置面において貫通孔から石目に沿って端縁まで延長された、石板を部分的に肉薄にする載置側溝部を形成する構成例に該当する。 Further, as shown in another modified example of FIG. 8, the notch 15B may be deeper so as to communicate with the through hole. In other words, the through-hole 1 and the placement side groove portion 12 can be integrally formed, and the notch shape 15 having a depth d ₃ can be formed along the placement side groove portion 12. This notch 15B forms a slit-like groove. If it is this structure, the effect | action of the stress relaxation with respect to the deformation | transformation of the stone plate at the time of a heating can further be exhibited, and generation | occurrence | production of a crack etc. can be suppressed. In addition, it becomes easier to visually recognize the heating element arranged on the heating surface side of the stone plate through the slit-shaped groove portion as compared with the through hole. For example, when using solid fuel for the heating element, the user knows that the flame has disappeared. However, without looking into the bottom of the stone plate, you can check it from the top by moving your head a little, and you can use it more conveniently. In the present specification, such an example in which the through-hole and the placement-side groove portion are integrally configured also includes a through-hole referred to in the claims that penetrates from the central portion of the placement surface to the heating surface, and on the placement surface. This corresponds to a configuration example in which a mounting side groove portion that extends from the through hole to the edge along the grain and partially thins the stone plate is formed.

これら載置側溝部１２と加熱側溝部２２のそれぞれの幅は、貫通孔１の内径と同程度の大きさとすることで、貫通孔１から連なる載置側溝部１２と加熱側溝部２２を、外観上自然に見せることができる。また載置側溝部１２や加熱側溝部２２のそれぞれの深さは、たとえば１ｍｍ以上で石板の厚さ以下、好ましくは３ｍｍ程度とする。 The respective widths of the placement side groove portion 12 and the heating side groove portion 22 are approximately the same as the inner diameter of the through hole 1 so that the placement side groove portion 12 and the heating side groove portion 22 connected to the through hole 1 You can look natural. The depth of each of the placement side groove 12 and the heating side groove 22 is, for example, not less than 1 mm and not more than the thickness of the stone plate, preferably about 3 mm.

また、これら載置側溝部１２と加熱側溝部２２は、載置面１１と加熱面２１でそれぞれ対向する位置に形成することが好ましい。このようにすることで、貫通孔１から連通された溝部を上下で同じ位置として、微小なひび割れ等が生じても、予め破断されたこれらの貫通孔１や溝部１２、１３が起点となるように誘導することができる。この結果、ひび割れを奥まった溝内に留めおくことができ、外見上の破損を目立たなくできる。 Further, it is preferable that the placement side groove portion 12 and the heating side groove portion 22 are formed at positions facing each other on the placement surface 11 and the heating surface 21. By doing in this way, even if a microcrack etc. arise, the groove part connected from the through-hole 1 was made into the same position up and down, so that these through-holes 1 and the groove parts 12 and 13 which were fractured in advance become a starting point. Can be guided to. As a result, the crack can be retained in the recessed groove, and the appearance damage can be made inconspicuous.

なお、以上の例では貫通孔の内径を、載置側溝部や加熱側溝部の幅と同じか、これよりも小さく設定しているが、本発明はこの構成に限らず、貫通孔の内径を載置側溝部や加熱側溝部の幅よりも大きくしてもよい。このような例を、他の変形例として図９に示す。この図に示す加熱具５００は、貫通孔１Ｃの内径を切り欠き状１５Ｃよりも大きく形成している。またこの例では、切り欠き状１５Ｃをスリット状の溝部としている。これによって石板を、矢印で示す方向により変形し易くできる利点が得られる。 In the above example, the inner diameter of the through hole is set to be the same as or smaller than the width of the mounting side groove and the heating side groove, but the present invention is not limited to this configuration, and the inner diameter of the through hole is not limited to this configuration. You may make it larger than the width | variety of a mounting side groove part or a heating side groove part. Such an example is shown in FIG. 9 as another modification. In the heating tool 500 shown in this figure, the inner diameter of the through-hole 1C is formed larger than the notch shape 15C. In this example, the notch 15C is a slit groove. This provides an advantage that the stone plate can be easily deformed in the direction indicated by the arrow.

石板の厚さは、５ｍｍ〜３０ｍｍとすることが好ましい。これよりも薄くすると、割れ易くなる。一方、これよりも厚くすると熱伝導が悪くなり、野菜を焼くことが難しくなる。本発明者の試験によれば、１２ｍｍ〜１８ｍｍが最も耐久性がよいことが判明した。特に１６ｍｍ近傍では、肉の焼き加減が良くなり、安価な肉でも美味しく食べることができた。
（実施形態２） The thickness of the stone plate is preferably 5 mm to 30 mm. If it is thinner than this, it becomes easy to break. On the other hand, if it is thicker than this, heat conduction becomes poor and it becomes difficult to bake vegetables. According to the inventor's test, it was found that 12 mm to 18 mm has the best durability. Especially in the vicinity of 16 mm, the cooking of the meat was improved, and even cheap meat could be eaten deliciously.
(Embodiment 2)

以上の例では、載置面を平坦面としたが、本発明はこの構成に限らず、載置面に窪みを形成し、この窪みに貫通孔を設けてもよい。このような例を実施形態２として図１０に示す。この図に示す加熱具２００は、貫通孔１を中心としてドーム状に窪み１４を形成している。このような窪み１４を形成し、さらに窪み１４の内部に貫通孔１を設け、さらに窪み１４よりも深い溝部を形成することで、二段階の破断部分を予め形成することにより、加熱具の使用時のひび割れの誘い込み効果を一層高めることができる。また、この場合は食材の加熱時に溝部に集められた油脂分などは、主に貫通孔１側に集められて排出される。また、石板にドーム状に窪みを設ける他、例えば円環状の窪みを加熱面に設けてもよい。円環状の窪みで囲まれた領域内に牛肉などの加熱対象物を配置して加熱することにより、窪みで油分を受けることができ、使いやすくできる。
（実施形態３） In the above example, the mounting surface is a flat surface, but the present invention is not limited to this configuration, and a recess may be formed in the mounting surface, and a through hole may be provided in the recess. Such an example is shown in FIG. The heating tool 200 shown in this figure has a dome-like recess 14 formed around the through hole 1. Use of a heating tool by forming such a depression 14, further providing a through hole 1 inside the depression 14, and further forming a groove portion deeper than the depression 14, thereby forming a two-stage fracture portion in advance. The effect of inducing cracks in time can be further enhanced. In this case, the oil and fat collected in the groove when the food is heated is mainly collected on the through-hole 1 side and discharged. In addition to providing a dome-like depression on the stone plate, for example, an annular depression may be provided on the heating surface. By disposing and heating a heating object such as beef in a region surrounded by an annular depression, oil can be received in the depression and can be used easily.
(Embodiment 3)

また以上の例では、溝部を貫通孔と石板の端縁との間に一本だけ形成する構成を示したが、本発明はこの構成に限定されず、貫通孔と石板の端縁との間に複数本の溝部を形成してもよい。一例として、実施形態３に係る加熱具３００の斜視図を図１１に示す。この石板は、載置側溝部１２Ｂを、載置面１１において貫通孔１を中心として十字状に形成している。このように、載置側溝部１２Ｂを貫通孔１を中心として縦横に延長することで、貫通孔１の四方において発生する微小なひび割れ等を、いずれかの載置側溝部１２Ｂに案内することが可能となり、一層、このようなひび割れ等の破損を目立たなくできる。なお、加熱面側に設けた加熱側溝部については、一本のみで足りるが、同様に増やしてもよい。 In the above example, only one groove is formed between the through hole and the edge of the stone plate. However, the present invention is not limited to this configuration, and the groove is formed between the through hole and the edge of the stone plate. A plurality of grooves may be formed. As an example, a perspective view of a heating tool 300 according to Embodiment 3 is shown in FIG. In this stone plate, the placement-side groove portion 12B is formed in a cross shape on the placement surface 11 with the through hole 1 as the center. In this way, by extending the placement-side groove 12B vertically and horizontally with the through hole 1 as a center, it is possible to guide minute cracks or the like generated in the four directions of the through-hole 1 to any of the placement-side grooves 12B. This makes it possible to make the damage such as cracks inconspicuous. In addition, about the heating side groove part provided in the heating surface side, although only one is sufficient, you may increase similarly.

以上の例では、貫通孔を石板の中央部分の一箇所にのみ形成した例を説明した。ただ本発明はこの構成に限られず、貫通孔を２以上形成してもよい。例えば長方形状の石板の長手方向において、約１／３の間隔で貫通孔を２つ設ける。また各貫通孔から、石板の端縁に向かって溝部を形成する。このように２つめの第二貫通孔を付加し、さらに各貫通孔から溝部を延長することで、破断を溝部に集中させる効果を一層高めて、より長期使用可能な耐久性に優れた加熱具を得ることが可能となる。特に、一方向に長い形状とした石板には貫通孔を複数設けることが有利となる。
（実施形態４） In the above example, the example in which the through hole is formed only at one position of the central portion of the stone plate has been described. However, the present invention is not limited to this configuration, and two or more through holes may be formed. For example, two through holes are provided at an interval of about 1/3 in the longitudinal direction of a rectangular stone plate. Moreover, a groove part is formed toward each edge of a stone board from each through-hole. By adding the second second through hole in this way and further extending the groove portion from each through hole, the effect of concentrating the breakage on the groove portion is further enhanced, and the heating tool having excellent durability that can be used for a longer period of time. Can be obtained. In particular, it is advantageous to provide a plurality of through holes in a stone plate that is long in one direction.
(Embodiment 4)

また、石板を複数の小片に分割し、小片を組み合わせることで大きな石板を構成するようにしてもよい。これによってより大きいサイズの加熱具を得るなど、任意の大きさの加熱具に調整できる。このような例を実施形態４として、図１２に示す。この図に示す加熱具４００は、長方形状の小片１０Ｄを複数枚並べて構成される。各小片１０Ｄは、長手方向に沿って、中央から短辺の端縁まで延長された切り欠き状１５Ｄを形成している。これにより、各小片１０Ｄは加熱時の割れを抑制できる。 Moreover, you may make it comprise a big stone board by dividing | segmenting a stone board into a some small piece and combining a small piece. This makes it possible to adjust to a heating tool of any size, such as obtaining a heating tool of a larger size. Such an example is shown in FIG. The heating tool 400 shown in this figure is configured by arranging a plurality of rectangular pieces 10D. Each small piece 10D forms a notch 15D extending from the center to the edge of the short side along the longitudinal direction. Thereby, each small piece 10D can suppress the crack at the time of a heating.

なお図１２の例では、各小片１０Ｄを、切り欠き状１５Ｄが長手方向において交互に現れるように配置しているが、この配置に限らず、いずれか一辺に切り欠き状１５Ｄの端縁が並ぶように配置してもよい。またこの例では、各小片１０Ｄを長方形状としているが、隅部を落とした八角形状に形成してもよい。さらに切り欠き状１５Ｄは、スリット状の溝部としているが、これに代えて肉薄にした載置側溝部等としてもよい。
（枠体３０） In the example of FIG. 12, the small pieces 10D are arranged so that the cutouts 15D appear alternately in the longitudinal direction. However, the present invention is not limited to this arrangement, and the edges of the cutouts 15D are arranged on either side. You may arrange as follows. In this example, each small piece 10D has a rectangular shape, but may be formed in an octagonal shape with corners dropped. Furthermore, although the notch 15D is a slit-shaped groove, it may be replaced with a thinner mounting side groove.
(Frame 30)

以上の例では石板のみで加熱具を構成する例を説明したが、さらに石板を支持する枠体を付加したり、さらに加えて枠体を置くための台座部を付加しても良い。このような例を変形例として図１３及び図１４に示す。これらの図に示す加熱具１０００は、上述した実施形態１〜３に示したような石板に、枠体３０と台座部４０を組み合わせた例を示している。ここでは一例として、図１１に示した石板を示した。このようにして得られる加熱具は組み立てや分解が容易にでき、携帯性に優れる。 Although the example which comprises a heating tool only with a stone board was demonstrated in the above example, the frame which supports a stone board may be added, and also the base part for putting a frame in addition may be added. Such an example is shown in FIGS. 13 and 14 as a modification. The heating tool 1000 shown in these drawings shows an example in which the frame body 30 and the pedestal portion 40 are combined with the stone plate as shown in the first to third embodiments. Here, the stone plate shown in FIG. 11 is shown as an example. The heating tool thus obtained can be easily assembled and disassembled and is excellent in portability.

枠体３０は、石板の加熱面２１を支持するための部材である。台座部４０は、その上面に枠体３０や、固形燃料ＦＴや炭火などの発熱体を載置するための部材である。台座部４０を設けることで、加熱具１０００の運搬、例えば準備や後片付けを容易にできる。ただ、台座部は省略してもよい。 The frame 30 is a member for supporting the heating surface 21 of the stone plate. The pedestal portion 40 is a member for placing the frame body 30 and a heating element such as solid fuel FT or charcoal on the upper surface thereof. By providing the pedestal portion 40, the heating tool 1000 can be easily transported, for example, prepared or cleaned up. However, the pedestal may be omitted.

枠体３０を台座部４０と石板との間に介在させることで、発熱体と石板とを離間させて加熱しやすくできる。すなわち台座部４０上に固形燃料ＦＴなどの発熱体を配置して、石板の加熱面２１を効率よく加熱することが可能となる。枠体３０の高さは、使用する発熱体の火力や石板の厚さ、熱伝導率などに応じて適宜設計される。例えば３ｃｍ〜５ｃｍとする。 By interposing the frame 30 between the pedestal 40 and the stone plate, the heating element and the stone plate can be separated and heated easily. That is, a heating element such as the solid fuel FT can be disposed on the pedestal portion 40 to efficiently heat the heating surface 21 of the stone plate. The height of the frame 30 is appropriately designed according to the heating power of the heating element to be used, the thickness of the stone plate, the thermal conductivity, and the like. For example, it is set to 3 cm to 5 cm.

またこの例では、３つの細長い板片３１を組み合わせて、コ字状の枠体３０を形成している。板片３１は、他の板片３１との組み合わせを容易にするため、切り欠き３２を形成している。枠体３０をコ字状として一方を開口させることで、この開口部分から固形燃料ＦＴなどの発熱体を台座部４０上に挿入したり、取り出しすることが容易となる。 In this example, three elongated plate pieces 31 are combined to form a U-shaped frame 30. The plate piece 31 is formed with a notch 32 in order to facilitate the combination with the other plate pieces 31. By making the frame 30 U-shaped and opening one, it becomes easy to insert or take out a heating element such as the solid fuel FT from the opening on the pedestal 40.

さらに図１５の変形例に係る加熱具１０００’に示すように、枠体３０’を構成する板片３１’の内、奥側すなわちコ字状の底面側に位置する板片３１’に空気穴３３’を形成してもよい。これにより、石板の下面で空気の出入りをし易くして燃焼しやすくできる。また、このような空気穴は奥側の板片に限らず、側面側の板片に設けてもよい。また、その数も板片に複数設けてもよい。その形状も半円に限らず、楕円状や矩形状、多角形状等としてもよい。さらに、板片の下面を切り欠いた形状とする他、中間を貫通させても良い。空気口を多く形成することで、通気性が良くなり、発熱体の燃焼のための酸素を供給しやすくできる。 Further, as shown in the heating tool 1000 ′ according to the modification of FIG. 15, an air hole is formed in the plate piece 31 ′ located on the back side, that is, the U-shaped bottom side among the plate pieces 31 ′ constituting the frame body 30 ′. 33 'may be formed. Thereby, air can easily enter and exit from the lower surface of the stone plate to facilitate combustion. Moreover, such an air hole may be provided not only in the back-side plate piece but also in the side-side plate piece. Moreover, you may provide two or more in the board piece. The shape is not limited to a semicircle, and may be an elliptical shape, a rectangular shape, a polygonal shape, or the like. Further, in addition to the shape in which the lower surface of the plate piece is cut out, the middle may be penetrated. By forming a large number of air ports, air permeability is improved, and oxygen for combustion of the heating element can be easily supplied.

また加熱面側に配置される発熱体は、固形燃料ＦＴとすることが好ましい。固形燃料ＦＴは、カセットコンロなどと比べて火力が強すぎず、また徐々に加熱されるため、石板の加熱には好適である。しかも安価で、補充、交換も容易である。一般に市販されている円形状の金属容器に充填された直径数ｃｍの固形燃料ＦＴは、概ね２０分程度の加熱が可能である。本発明者が試験したところ、厚さ１２ｍｍの石板で牛肉を加熱すると、５分程度で丁度良い焼き加減となり、安価な肉でも高級な牛肉に匹敵する旨さで食べられることが確認された。いわゆる「ちょい飲み」や「家飲み」のアテ用には最適である。 The heating element disposed on the heating surface side is preferably a solid fuel FT. The solid fuel FT is suitable for heating a stone plate because it does not have a strong heating power compared to a cassette stove or the like and is gradually heated. Moreover, it is inexpensive and can be easily refilled and replaced. The solid fuel FT having a diameter of several centimeters filled in a commercially available circular metal container can be heated for about 20 minutes. When the present inventor tested, when beef was heated with a 12 mm thick stone plate, it was confirmed that it was cooked well in about 5 minutes, and even cheap meat could be eaten with a taste comparable to high-quality beef. It is ideal for so-called “little drink” and “home drink” ate.

さらに、台座部４０と枠体３０を、石板と同じ材質で形成することが好ましい。この例ではいずれも緑泥片岩製としている。特に緑泥片岩は、緑色で石目が美しい石として知られ、高品質な石材として門柱、庭石、灯籠などの建材に利用されている。また録泥片岩は、火に強く、粘りと撓りを有するので、加熱具の材質として好適である。日本国内では徳島県、愛媛県等が主な産地として知られている。 Furthermore, it is preferable to form the base part 40 and the frame 30 with the same material as the stone plate. In this example, all are made of chlorite schist. In particular, green mud schist is known as a stone that is green and beautiful, and is used as a high-quality stone for building materials such as gate pillars, garden stones, and lanterns. In addition, the recording mud schist is resistant to fire and has stickiness and bending, so it is suitable as a material for the heating tool. In Japan, Tokushima Prefecture and Ehime Prefecture are known as the main production areas.

ただ、石材の加工時には廃材が発生することが避けられず、これが産業廃棄物となるため、その処分に費用がかかることが製造者の負担となっていた。特に近年では、中国や韓国から石材製品が輸入されており、価格競争に晒されているところである。 However, it is inevitable that waste materials are generated during the processing of stone, and this is an industrial waste, so the cost of disposal is a burden on the manufacturer. In particular, in recent years, stone products have been imported from China and South Korea and are exposed to price competition.

また録泥片岩等の青石は、日本建築の基礎部分や石積み等に多用されているところ、このような青石を用いた家屋の再建時には、産業廃棄物として大量に排出されることになる。青石をリサイクルするには、小さく粉砕しなければならないため、その処理費用が莫大となり再建時の負担となっていた。このような状況では、廃材となった石材を有効利用する途が求められているところ、従来は有効な利用方法が確立されていなかった。 Aoishi such as recording mud schist is widely used in the foundations and masonry of Japanese architecture. When rebuilding a house using such a stone, it will be discharged in large quantities as industrial waste. In order to recycle Aoishi, it had to be pulverized into small pieces, so the processing costs were enormous and burdened at the time of reconstruction. Under such circumstances, there has been a demand for a way to effectively use the stone material that has become a waste material, but an effective utilization method has not been established in the past.

そこで本発明者は、簡易に作成可能な調理等に利用可能な加熱具としての利用を思い立ち、本願発明を成すに至った。特に、石板をフライパンのようにして調理することで、焼き加減の良い肉などが得られることは知られていたものの、石材は加熱によって破断するため、安全性が懸念されており、また使い捨て式とすることでゴミとなる問題もあった。そこで、加熱しても割れ難い、あるいは割れが生じても目立たず繰り返し利用可能な形態を種々検討したところ、貫通孔と溝の組み合わせによって、割れ難い、微細が割れが目立たない加熱具を得られるとの知見を得、本願発明を成すに至った。特に、中央部分に貫通孔を設け、予め破断を形成すると共に、この貫通孔を起点として、肉薄あるいは切り欠いた溝部を石板の端縁に向かって石目に沿って形成することで、繰り返しの加熱によって生じる微細な割れをこの溝部に案内することができ、割れが目立たないようにして繰り返し使用可能とした加熱具を得ることが可能となった。この加熱具は比較的小さいため、廃材となった石材でも製作が可能となり、従来は廃棄して産業廃棄物とするしかなかった石片を有効利用することが可能となる。この結果、産業廃棄物の処理費用を抑制して、石材業者の経済負担も軽減され、石材製品の価格競争力の向上にも寄与しうる。さらに、産廃の低減により、環境負荷も低減して、資源の有効利用という近年の風潮にも沿った理想的な環境を実現し得る。 Then, this inventor considered the utilization as a heating tool which can be used for the cooking etc. which can be produced easily, and came to make this invention. In particular, it was known that by cooking a stone plate like a frying pan, meat with good baking could be obtained, but because the stone material is broken by heating, there is concern about safety, and disposable type There was also a problem that would become garbage. Therefore, when various forms of forms that are difficult to crack even when heated, or that can be repeatedly used without being noticed even when cracks occur, a combination of through holes and grooves makes it possible to obtain a heating tool that is difficult to crack and in which fine cracks are not noticeable. As a result, the present invention was made. In particular, a through hole is provided in the central portion, and a fracture is formed in advance, and a thin or notched groove is formed along the grain toward the edge of the stone plate starting from this through hole. Fine cracks generated by heating can be guided to the groove, and it becomes possible to obtain a heating tool that can be used repeatedly without making the cracks noticeable. Since this heating tool is relatively small, it is possible to manufacture even a stone material that has become a waste material, and it is possible to effectively use a piece of stone that has conventionally been disposed of as an industrial waste. As a result, the cost of processing industrial waste can be reduced, the economic burden on the stone supplier can be reduced, and it can contribute to the improvement of price competitiveness of stone products. Furthermore, by reducing industrial waste, the environmental load can be reduced, and an ideal environment can be realized in accordance with the recent trend of effective use of resources.

実施形態に係る加熱具は、自宅やレストランなどで提供される、個人用の調理具として好適に利用できる。 The heating tool according to the embodiment can be suitably used as a personal cooking tool provided at home or a restaurant.

１００、２００、３００、４００、５００、１０００、１０００’…加熱具
１、１Ｃ…貫通孔
１０Ｄ…小片
１１…載置面
１２、１２Ｂ…載置側溝部
１３…傾斜面
１４…窪み
１５、１５Ｂ、１５Ｃ、１５Ｄ…切り欠き状
２１…加熱面
２２…加熱側溝部
３０、３０’…枠体
３１、３１’…板片
３２…切り欠き
３３’…空気穴
４０…台座部
ＯＢ…加熱対象物
ＦＴ…固形燃料
ＳＴ…スタンド 100, 200, 300, 400, 500, 1000, 1000 '... Heating tool 1, 1C ... Through hole 10D ... Small piece 11 ... Placement surface 12, 12B ... Placement side groove 13 ... Inclined surface 14 ... Depression 15, 15B, 15C, 15D ... Notch shape 21 ... Heating surface 22 ... Heating side groove 30, 30 '... Frame 31, 31' ... Plate piece 32 ... Notch 33 '... Air hole 40 ... Base part OB ... Heating object FT ... Solid fuel ST ... Stand

Claims

A mounting surface for placing a heating object;
A heating tool comprising a plate-shaped stone plate having a heating surface to be heated, facing the placement surface,
A through-hole penetrating from the central part of the mounting surface to the heating surface is opened,
The heating tool which forms the mounting side groove part extended in the mounting surface from the said through-hole to the edge along the grain, and making the said stone plate partially thin.

The heating tool according to claim 1,
The said stone board is a heating tool formed in the said heating surface by forming the heating side groove part extended from the said through-hole to an edge along the grain, and making the said stone board partially thin.

The heating tool according to claim 1 or 2,
A heating tool in which the placement-side groove and the heating-side groove are formed at opposing positions.

A mounting surface for placing a heating object;
A heating tool comprising a plate-shaped stone plate having a heating surface to be heated, facing the placement surface,
The heating tool formed from the center part of the said mounting surface to the end edge along the grain of the said stone board, and forming the slit-shaped groove part which notched this stone board partially.

It is a heating tool as described in any one of Claims 1-3 ,
The heating tool in which the dome-shaped hollow centering on the said through-hole is formed in the said mounting surface.

It is a heating tool as described in any one of Claims 1-5 ,
The stone plate is a heating tool formed of any one of chlorite schist, lava stone, granite, and amphibolite.

It is a heating tool as described in any one of Claims 1-6 ,
The heating tool whose thickness of the stone board is 5 mm-30 mm.

A heating device according to any one of claims 1 to 7
The heating tool in which the heating surface is a surface for heating with solid fuel or charcoal fire.

The heating tool according to any one of claims 1 to 8 , further comprising:
A pedestal that is spaced apart from the stone plate;
A frame body interposed between the pedestal and the stone plate,
A heating tool in which the pedestal and the frame are made of the same material as the stone plate.

The heating tool according to claim 9 , wherein
A heating tool in which the frame is formed in a U shape in plan view.