JP6864878B2 - Glass plate manufacturing method, glass plate device manufacturing method and tombstone manufacturing method - Google Patents

Glass plate manufacturing method, glass plate device manufacturing method and tombstone manufacturing method Download PDF

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JP6864878B2
JP6864878B2 JP2015243577A JP2015243577A JP6864878B2 JP 6864878 B2 JP6864878 B2 JP 6864878B2 JP 2015243577 A JP2015243577 A JP 2015243577A JP 2015243577 A JP2015243577 A JP 2015243577A JP 6864878 B2 JP6864878 B2 JP 6864878B2
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glass plate
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浩市 緑間
浩市 緑間
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OKISEKI CO., LTD.
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Description

本発明は、墓石に取り付けられるガラス板、ガラス板装置及び当該ガラス板又は当該ガラス板装置が取り付けられた墓石並びにガラス板の製造方法に関する。 The present invention relates to a glass plate and a glass plate device attached to a tombstone, and a method for manufacturing the glass plate or a tombstone and a glass plate to which the glass plate device is attached.

美観の優れた墓石を提供するため、墓石の一部にガラス材を用いることを考えている。この種の墓石としては、下記特許文献１に記載の墓石がある。下記特許文献１には、墓石の本体部の表面に固定され、透明ガラスの内部に着色ガラスを含んだ装飾ガラス部が開示されている。また、下記特許文献１には、装飾ガラス部の製造方法として、透明なガラス板の上に、カットされた着色ガラスを敷きつめ、さらにその上に、透明なガラス板を砕いた透明ガラス魂をランダムに配置して、これらを熱処理により溶融させて合一化する製造方法が開示されている。 In order to provide aesthetically pleasing tombstones, we are considering using glass as part of the tombstones. As a tombstone of this type, there is a tombstone described in Patent Document 1 below. Patent Document 1 below discloses a decorative glass portion fixed to the surface of the main body portion of a tombstone and containing colored glass inside the transparent glass. Further, in Patent Document 1 below, as a method for manufacturing a decorative glass portion, a cut colored glass is laid on a transparent glass plate, and a transparent glass soul obtained by crushing the transparent glass plate is randomly arranged on the transparent glass plate. Disclosed is a manufacturing method in which these are arranged in a glass and melted by heat treatment to be united.

特開２００９−２９３１９１号公報Japanese Unexamined Patent Publication No. 2009-293191

ところで、墓石には、水などの液体を掛けるという作法がある。この作法の際、例えば夏の炎天下において高温になった墓石に冷たい液体が掛けられると墓石の表面の温度が急激に低下することがある。 By the way, there is a method of pouring a liquid such as water on the tombstone. In this method, for example, when a cold liquid is applied to a tombstone that has become hot in the hot summer sun, the temperature of the surface of the tombstone may drop sharply.

そして、上記特許文献１に記載の製造方法で得られた墓石の装飾ガラス部に液体が掛けられると、当該装飾ガラス部の表面部分の温度が急激に変化して、装飾ガラス部が部分的にランダムに熱収縮し、この結果、装飾ガラス部に歪みが生じて装飾ガラス部が割れる恐れがある。 Then, when a liquid is applied to the decorative glass portion of the tombstone obtained by the manufacturing method described in Patent Document 1, the temperature of the surface portion of the decorative glass portion suddenly changes, and the decorative glass portion partially becomes. The heat shrinks randomly, and as a result, the decorative glass portion may be distorted and the decorative glass portion may be cracked.

本発明はこのような課題に鑑みてなされたものであり、その目的は、墓石の美観を向上しつつ、ガラス板内に温度変動等が発生しても割れ難いガラス板、ガラス板装置及び当該ガラス板又は当該ガラス板装置が取り付けられた墓石並びにガラス板の製造方法を提供することにある。 The present invention has been made in view of such a problem, and an object of the present invention is a glass plate, a glass plate device, and a glass plate device that are hard to break even if temperature fluctuations occur in the glass plate while improving the aesthetic appearance of the tombstone. It is an object of the present invention to provide a glass plate or a tombstone to which the glass plate device is attached and a method for manufacturing the glass plate.

上記課題を解決するために、本発明者らは、種々の検討を重ねた結果、墓石に取付けられるガラス板の内部領域に粒状ガラスを入れ、ガラス板の露出面を均質なガラス層とすることで、ガラス板の表面に例えば液体が掛かっても、その表面が均一に収縮し、ガラス板が割れるきっかけを作らないため、温度変動等に対するガラス板の強度を向上できることを見出し、本発明に至った。 In order to solve the above problems, as a result of various studies, the present inventors put granular glass in the inner region of the glass plate to be attached to the tombstone, and make the exposed surface of the glass plate a uniform glass layer. Therefore, we have found that even if a liquid is splashed on the surface of the glass plate, the surface shrinks uniformly and does not cause the glass plate to crack, so that the strength of the glass plate against temperature fluctuations can be improved, leading to the present invention. It was.

すなわち、本発明のガラス板の製造方法は、墓石の墓石本体に取り付けられるガラス板の製造方法であって、型内において複数のガラス粒の周囲六面を均質ガラスで覆った状態で、前記複数のガラス粒と前記均質ガラスを加熱して溶融する工程と、その後冷却して、互いに接合された複数の粒状ガラスを含む内部領域と前記内部領域の周囲六面の全面を覆う均質ガラス層とを備えるガラス板を得る工程と、を備え、前記均質ガラスは、前記複数のガラス粒の前記周囲六面の各面を覆う６枚のフロートガラスからなり、前記均質ガラス層は、前記６枚のフロートガラスが溶融してなり、前記複数の粒状ガラスがガラス板表面に露出しないように前記内部領域の周囲六面の全面を囲う。 That is, the manufacturing method of the glass plate of the present invention is a manufacturing method for a glass plate attached to the tombstone body of tombstones, while covering the six surfaces around the plurality of glass particles in a homogeneous glass in the mold, the plurality a step of glass particles and melted by heating the homogeneous glass, then cooling, a homogeneous glass to cover the entire surface of the surrounding six surfaces of a plurality of particulate glass joined and including the region before Symbol inner region to each other comprising obtaining a glass plate Ru and a layer, wherein the homogeneous glass, the a plurality of glass particles of the I covering the surfaces of the surrounding hexagonal six float glass, the homogeneous glass layer , The six float glasses are melted and surround the entire surrounding six surfaces of the internal region so that the plurality of granular glasses are not exposed on the surface of the glass plate.

この構成によれば、墓石に取り付けられるガラス板が、互いに接合された複数の粒状ガラスを含む内部領域を有するので、連続的な粒状ガラスがあり、美観の優れた墓石を実現できる。また、複数の粒状ガラスがガラス板表面に露出しないように均質ガラス層が内部領域の周囲全面を囲うので、ガラス板表面に液体が掛かることによるガラス板内の温度変動や、ガラス板内にその他日常的又は予期せぬ温度変動が発生してガラス板内に温度変動が生じてもその表面が均一に収縮し、ガラス板が割れるきっかけを作らないため、温度変動に対するガラス板の強度を向上できる。この結果、墓石の美観を向上しつつ、ガラス板内に温度変動が発生しても割れ難いガラス板を実現できる。 According to this configuration, since the glass plate attached to the tombstone has an internal region including a plurality of granular glasses joined to each other, there is continuous granular glass, and a tombstone having an excellent appearance can be realized. In addition, since a homogeneous glass layer surrounds the entire circumference of the internal region so that a plurality of granular glasses are not exposed on the surface of the glass plate, temperature fluctuations in the glass plate due to liquid splashing on the surface of the glass plate and other things in the glass plate. Even if daily or unexpected temperature fluctuations occur and the temperature fluctuations occur inside the glass plate, the surface shrinks uniformly and does not create a trigger for the glass plate to crack, so the strength of the glass plate against temperature fluctuations can be improved. .. As a result, it is possible to realize a glass plate that is hard to break even if a temperature fluctuation occurs in the glass plate while improving the appearance of the tombstone.

好ましくは、ガラス板の角は、面取りされている。 Preferably, the corners of the glass plate are chamfered.

この構成によれば、ガラス板表面に液体が掛かって場合にガラス板表面をより均一に収縮させることができる。 According to this configuration, the surface of the glass plate can be shrunk more uniformly when the liquid is applied to the surface of the glass plate.

好ましくは、複数の粒状ガラスは、着色ガラスを含む。 Preferably, the plurality of granular glasses include colored glass.

この構成によれば、粒状ガラスがよりはっきりと視認できるようになる。この結果、複数の粒状ガラスがガラス板表面に露出していないことを視覚的に容易に確認することができる。 According to this configuration, the granular glass becomes more clearly visible. As a result, it can be easily visually confirmed that the plurality of granular glasses are not exposed on the surface of the glass plate.

また、本発明に係るガラス板装置は、上記何れか１つに記載のガラス板と、ガラス板を挟んだ両側においてガラス板の板面に離間対向して配置された、ガラス板よりも強度が高い透明板と、ガラス板の外周部と透明板の外周部を保持する保持体と、を備える。 Further, the glass plate device according to the present invention has a strength higher than that of the glass plate according to any one of the above, which is arranged so as to be separated from and opposed to the plate surface of the glass plate on both sides of the glass plate. It includes a high transparent plate and a holding body that holds the outer peripheral portion of the glass plate and the outer peripheral portion of the transparent plate.

この構成によれば、透明板が、ガラス板を挟んだ両側においてガラス板の板面に離間対向して配置されているので、ガラス板に直接熱や力が伝わることを防ぐことができる。この結果、ガラス板が熱や力によって割れることを抑制することができる。また、透明板はガラス板よりも強度が高いので、ガラス板の強度を弱くしてガラス板を加工し易くすると共に、ガラス板装置全体の強度を一層高めることができる。 According to this configuration, since the transparent plates are arranged on both sides of the glass plate so as to be separated from each other and opposed to the plate surface of the glass plate, it is possible to prevent heat or force from being directly transmitted to the glass plate. As a result, it is possible to prevent the glass plate from breaking due to heat or force. Further, since the transparent plate has higher strength than the glass plate, the strength of the glass plate can be weakened to facilitate processing of the glass plate, and the strength of the entire glass plate apparatus can be further increased.

好ましくは、ガラス板と透明板の間に形成された隙間は、真空状態である。 Preferably, the gap formed between the glass plate and the transparent plate is in a vacuum state.

この構成によれば、透明板内の隙間の温度と透明板の外部の温度差により透明体の内側の面が曇ることを抑制することができる。 According to this configuration, it is possible to prevent the inner surface of the transparent body from becoming cloudy due to the temperature difference between the temperature of the gap inside the transparent plate and the temperature difference outside the transparent plate.

また、本発明に係る墓石は、上記何れか１つに記載のガラス板と、ガラス板が取り付けられ、ガラス板が外部に露出する墓石本体と、を備える。 Further, the tombstone according to the present invention includes the glass plate according to any one of the above, and a tombstone main body to which the glass plate is attached and the glass plate is exposed to the outside.

この構成によれば、ガラス板が外部に露出しているので、ガラス板内で温度差が生じ易いものの、そのガラス板がガラス板内で温度差が生じても割れ難いものであるので、ガラス板を長持ちさせることができる。 According to this configuration, since the glass plate is exposed to the outside, a temperature difference is likely to occur in the glass plate, but the glass plate is hard to break even if a temperature difference occurs in the glass plate. The board can last a long time.

また、本発明に係る墓石は、上記何れか１つに記載のガラス板装置と、ガラス板装置が取り付けられ、ガラス板装置が外部に露出する墓石本体と、を備える。 Further, the tombstone according to the present invention includes the glass plate device according to any one of the above, and a tombstone main body to which the glass plate device is attached and the glass plate device is exposed to the outside.

本発明によれば、墓石の美観を向上しつつ、ガラス板内に温度変動等が発生しても割れ難いガラス板及び当該ガラス板が取り付けられた墓石並びにガラス板の製造方法が提供される。 According to the present invention, there is provided a glass plate that is hard to break even if a temperature fluctuation or the like occurs in the glass plate while improving the aesthetic appearance of the tombstone, a tombstone to which the glass plate is attached, and a method for manufacturing the glass plate.

図１は、本発明の第１実施形態に係る墓石の実物を斜視図で表したものである。FIG. 1 is a perspective view of an actual tombstone according to the first embodiment of the present invention. 図２は、本発明の第２実施形態に係るガラス板の実物を斜視図で表したものである。FIG. 2 is a perspective view of an actual glass plate according to a second embodiment of the present invention. 図３（Ａ）は、図２に示すガラス板を模式図で表したものであって、そのガラス板の正面図を表している。図３（Ｂ）は、図２に示すガラス板を模式図で表したものであって、そのガラス板の側面図を表している。FIG. 3A is a schematic view of the glass plate shown in FIG. 2, and shows a front view of the glass plate. FIG. 3B is a schematic view of the glass plate shown in FIG. 2, and shows a side view of the glass plate. 図４（Ａ）は、本発明の第２実施形態に係るガラス板の製造方法を示す図であって、その最初の工程を示す図である。図４（Ｂ）は、図４（Ａ）から続く工程を示す図である。FIG. 4A is a diagram showing a method for manufacturing a glass plate according to a second embodiment of the present invention, and is a diagram showing the first step thereof. FIG. 4B is a diagram showing a process continuing from FIG. 4A. 図５（Ａ）は、図４（Ｂ）から続く工程を示す図である。図５（Ｂ）は、図５（Ａ）から続く工程を示す図である。図５（Ｃ）は、図５（Ｂ）から続く工程を示す図である。FIG. 5 (A) is a diagram showing a process continuing from FIG. 4 (B). FIG. 5B is a diagram showing a process continuing from FIG. 5A. FIG. 5C is a diagram showing a process continuing from FIG. 5B. 図６は、第３実施形態に係るガラス板装置の正面図を表している。FIG. 6 shows a front view of the glass plate device according to the third embodiment.

以下、添付図面を参照しながら本発明の実施形態について説明する。説明の理解を容易にするため、各図面において同一の構成要素に対しては可能な限り同一の符号を付して、重複する説明は省略する。
＜第１実施形態＞ Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as much as possible in each drawing, and duplicate description is omitted.
<First Embodiment>

図１乃至図３を参照しながら、本発明の第１実施形態に係る墓石及びガラス板について説明する。 The tombstone and the glass plate according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

図１に示されるように、墓石１０は、お墓用に用いられている。ただし、墓石１０は、お墓用の石に限定されず、お墓周辺に用いられる石、例えば花立用や墓誌用の石であってもよい。墓石１０は、墓石本体１１と、ガラス板１２と、を備える。 As shown in FIG. 1, the tombstone 10 is used for a grave. However, the gravestone 10 is not limited to the stone for the grave, and may be a stone used around the grave, for example, a stone for a flower stand or a stone for an epitaph. The tombstone 10 includes a tombstone main body 11 and a glass plate 12.

墓石本体１１には、例えば墓石本体１１の表面から裏面まで貫通した開口部１３が形成されている。 The tombstone main body 11 is formed with, for example, an opening 13 penetrating from the front surface to the back surface of the tombstone main body 11.

開口部１３には、ガラス板１２が嵌め込まれている。これにより、墓石本体１１にガラス板１２が取り付けられ、当該ガラス板１２が外部に露出している。 A glass plate 12 is fitted in the opening 13. As a result, the glass plate 12 is attached to the tombstone main body 11, and the glass plate 12 is exposed to the outside.

図２に示されるように、ガラス板１２は透明であり、内部が透けて見えるようになっている。この内部は、一部又は全体が例えば彩色により装飾されている。なお、図１及び２では、この装飾を表現するために、ガラス板１２の実物をグレースケールで表している。 As shown in FIG. 2, the glass plate 12 is transparent so that the inside can be seen through. The interior is partially or wholly decorated with, for example, coloring. In addition, in FIGS. 1 and 2, in order to express this decoration, the actual glass plate 12 is shown in gray scale.

ガラス板１２は、例えば直方体である。このガラス板１２は、表面１２１と、側面１２２と、裏面１２３とを有する。 The glass plate 12 is, for example, a rectangular parallelepiped. The glass plate 12 has a front surface 121, a side surface 122, and a back surface 123.

図２，図３（Ａ）及び（Ｂ）に示されるように、ガラス板１２の角は、面取りされている。すなわち、側面１２２と裏面１２３の境界部及び側面１２２同士の境界部が面取りされている。また、表面１２１と側面１２２の境界部も、後述する製造過程により結果的に面取りされた状態になっている。図３（Ｂ）に示されるように、表面１２１と側面１２２の境界部は、側面１２２と裏面１２３の境界部よりも緩やかな面取り面となっている。 As shown in FIGS. 2 and 3 (A) and 3 (B), the corners of the glass plate 12 are chamfered. That is, the boundary between the side surface 122 and the back surface 123 and the boundary between the side surfaces 122 are chamfered. Further, the boundary portion between the surface 121 and the side surface 122 is also in a chamfered state as a result of the manufacturing process described later. As shown in FIG. 3B, the boundary portion between the front surface 121 and the side surface 122 is a chamfered surface that is gentler than the boundary portion between the side surface 122 and the back surface 123.

図３（Ａ）及び（Ｂ）に示されるように、ガラス板１２は、内部領域１２４と、均質ガラス層１２５と、を備える。 As shown in FIGS. 3A and 3B, the glass plate 12 includes an internal region 124 and a homogeneous glass layer 125.

内部領域１２４は、略直方体形状の領域である。内部領域１２４には、複数の種類の粒状ガラス２１が敷き詰められている。この粒状ガラス２１同士は、接合されている。粒状ガラス２１は、無着色ガラス及び着色ガラスの何れか１つを含む。着色ガラスの色としては、赤や青，黄などである。本実施形態では、粒状ガラス２１として、互いに着色の異なる粒状ガラス２１Ａ，２１Ｂ，２１Ｃが用いられている。 The internal region 124 is a region having a substantially rectangular parallelepiped shape. A plurality of types of granular glass 21 are spread over the inner region 124. The granular glasses 21 are joined to each other. The granular glass 21 includes any one of uncolored glass and colored glass. The color of the colored glass is red, blue, yellow, or the like. In the present embodiment, as the granular glass 21, granular glasses 21A, 21B, and 21C having different colors are used.

このような内部領域１２４の周囲は、均質ガラス層１２５に囲まれている。なお、上記「均質」とは、内部領域１２４の粒状ガラス２１同士のような界面がなく、内部領域１２４よりも均質ガラス層１２５の組成が均質であることを意味する。均質ガラス層１２５は、内部領域１２４より大きい略直方体形状の領域であって、内部領域１２４を除いた領域である。この表面領域１２５は、内部領域１２４の粒状ガラス２１が視認可能なように無色透明となっている。この均質ガラス層１２５は、ガラス板表面としての表面１２１と、側面１２２と、裏面１２３を形成する。 The periphery of such an internal region 124 is surrounded by a homogeneous glass layer 125. The term "homogeneous" means that the composition of the homogeneous glass layer 125 is more homogeneous than that of the internal region 124 because there is no interface between the granular glass 21s in the internal region 124. The homogeneous glass layer 125 is a region having a substantially rectangular parallelepiped shape larger than the internal region 124, excluding the internal region 124. The surface region 125 is colorless and transparent so that the granular glass 21 of the internal region 124 can be visually recognized. The homogeneous glass layer 125 forms a front surface 121 as a glass plate surface, a side surface 122, and a back surface 123.

ここで、均質ガラス層１２５は、複数の粒状ガラス２１がガラス板表面に露出しないように内部領域１２４の周囲全面を囲っている。すなわち、粒状ガラス２１は、表面１２１、側面１２２及び裏面１２３のガラス板表面のうち何れにも形成されていない。粒状ガラス２１は、上述したように視覚的に確認することが可能である。したがって、ガラス板表面に粒状ガラス２１が形成されていない点は、粒状ガラス２１の全面を視認することで特定することができる。 Here, the homogeneous glass layer 125 surrounds the entire periphery of the internal region 124 so that the plurality of granular glasses 21 are not exposed on the surface of the glass plate. That is, the granular glass 21 is not formed on any of the glass plate surfaces of the front surface 121, the side surface 122, and the back surface 123. The granular glass 21 can be visually confirmed as described above. Therefore, the point where the granular glass 21 is not formed on the surface of the glass plate can be identified by visually recognizing the entire surface of the granular glass 21.

なお、図３では、均質ガラス層１２５が無色透明であるため、ガラス板表面に露出していない、すなわち内側に形成されている粒状ガラス２１も視認可能であるが、ガラス板表面に露出していない点を表現するために、当該粒状ガラス２１を点線で図示している。また、粒状ガラス２１は、ガラス板表面に露出していなければ、内部領域１２４だけでなく均質ガラス層１２５にも形成されていてもよい。 In FIG. 3, since the homogeneous glass layer 125 is colorless and transparent, the granular glass 21 formed inside is not exposed on the surface of the glass plate, that is, the granular glass 21 formed inside is also visible, but is exposed on the surface of the glass plate. The granular glass 21 is illustrated by a dotted line in order to represent a point that is not present. Further, the granular glass 21 may be formed not only in the internal region 124 but also in the homogeneous glass layer 125 as long as it is not exposed on the surface of the glass plate.

以上、本実施形態に係るガラス板１２の構成によれば、墓石に取り付けられるガラス板１２が、互いに接合された複数の粒状ガラス２１を含む内部領域１２４を有するので、連続的な粒状ガラス２１があり、美観の優れた墓石１０を実現できる。
また、ガラス板表面には内面に比べて風雨に晒されることによりクラックが生じやすく、このクラックを起点として例えば小さな力でゆっくりとした速度でクラックが進む所謂「低速クラック伸長」と呼ばれる現象が起こることがある。特にガラス板の表面に粒状ガラスが露出していればこの起点が更に多くなり、例えば低速クラック伸長が促進されてしまう。しかしながら、本実施形態に係るガラス板１２の構成によれば、複数の粒状ガラス２１がガラス板表面に露出しないように均質ガラス層１２５が内部領域１２４の周囲全面を囲うので、ガラス板内に温度変動が発生してもその表面が均一に収縮し、側面１２２を含むガラス板表面に生じ得る歪みを低減できる。このように、ガラス板１２の構成によれば、当該ガラス板１２が割れるきっかけ（低速クラック伸長の起点となるクラック）が抑制できるので、温度変動に対するガラス板１２の強度を向上できる。この結果、墓石１０の美観を向上しつつ、割れ難いガラス板１２を実現できる。 As described above, according to the configuration of the glass plate 12 according to the present embodiment, since the glass plate 12 attached to the tombstone has an internal region 124 including a plurality of granular glass 21 joined to each other, the continuous granular glass 21 is formed. Yes, it is possible to realize a tombstone 10 with excellent aesthetics.
In addition, the surface of the glass plate is more likely to crack due to exposure to wind and rain than the inner surface, and a phenomenon called "slow crack elongation" occurs in which the crack progresses at a slow speed with a small force, for example, starting from this crack. Sometimes. In particular, if the granular glass is exposed on the surface of the glass plate, this starting point will be further increased, and for example, low-speed crack elongation will be promoted. However, according to the configuration of the glass plate 12 according to the present embodiment, the homogeneous glass layer 125 surrounds the entire periphery of the internal region 124 so that the plurality of granular glasses 21 are not exposed on the surface of the glass plate, so that the temperature inside the glass plate is increased. Even if the fluctuation occurs, the surface shrinks uniformly, and the strain that may occur on the surface of the glass plate including the side surface 122 can be reduced. As described above, according to the configuration of the glass plate 12, the trigger for the glass plate 12 to crack (the crack that is the starting point of low-speed crack elongation) can be suppressed, so that the strength of the glass plate 12 against temperature fluctuations can be improved. As a result, it is possible to realize a glass plate 12 that is hard to break while improving the aesthetic appearance of the tombstone 10.

また、ガラス板１２の角が面取りされているので、ガラス板表面に液体が掛かって場合にガラス板表面をより均一に収縮させることができる。 Further, since the corners of the glass plate 12 are chamfered, the surface of the glass plate can be shrunk more uniformly when the liquid is applied to the surface of the glass plate.

また、複数の粒状ガラス２１が着色ガラスを含むので、装飾性を高めることができると共に、粒状ガラス２１がよりはっきりと視認できるようになる。この結果、複数の粒状ガラス２１がガラス板表面に露出していないことを視覚的に容易に確認することができる。
＜第２実施形態＞ Further, since the plurality of granular glasses 21 include colored glass, the decorativeness can be enhanced and the granular glass 21 can be visually recognized more clearly. As a result, it can be easily visually confirmed that the plurality of granular glasses 21 are not exposed on the surface of the glass plate.
<Second Embodiment>

第２実施形態では、図４及び図５を参照しながら、上記第１実施形態に係る墓石１０の製造方法の一例について説明する。 In the second embodiment, an example of the method for manufacturing the tombstone 10 according to the first embodiment will be described with reference to FIGS. 4 and 5.

図４（Ａ）に示されるように、着色ガラス、例えばアンティークガラス２０を用意する工程を実施する。用意するアンティークガラス２０は、例えば１２ｃｍ四方で厚さ３ｍｍの板状のガラスである。このアンティークガラス２０は、互いに着色が異なるように複数枚用意される。 As shown in FIG. 4A, a step of preparing colored glass, for example, antique glass 20 is carried out. The antique glass 20 to be prepared is, for example, a plate-shaped glass measuring 12 cm square and 3 mm thick. A plurality of antique glasses 20 are prepared so that the colors are different from each other.

上記工程の後、図４（Ｂ）に示されるように、複数枚のアンティークガラス２０をカットする工程を実施する。この実施により、複数の種類のガラス粒２１１が得られる。本実施形態では、図５（Ａ）に示されるように、互いに着色の異なるガラス粒２１１Ａ，２１１Ｂ，２１１Ｃが得られる。各ガラス粒２１１Ａ，２１１Ｂ，２１１Ｃのそれぞれのサイズは、例えば２ｃｍ角である。 After the above steps, as shown in FIG. 4B, a step of cutting a plurality of antique glasses 20 is carried out. By this implementation, a plurality of types of glass grains 211 can be obtained. In the present embodiment, as shown in FIG. 5A, glass grains 211A, 211B, 211C having different colors are obtained. The size of each glass grain 211A, 211B, 211C is, for example, 2 cm square.

上記工程の後、図５（Ａ）に示されるように、型３０Ａの凹部３１Ａ内において複数のガラス粒２１１の周囲六面を均質ガラス１２０Ａ，１２０Ｂで覆った状態で、当該複数のガラス粒２１１と均質ガラス１２０Ａ，１２０Ｂを加熱して溶融する工程を実施する。ここで、均質ガラス１２０Ａ，１２０Ｂは、共に建材用のフロートガラスを用いる。なお、図５（Ａ）では、手前側の均質ガラス１２０Ｂの記載を省略している。これら均質ガラス１２０Ａ，１２０Ｂは、各ガラス粒２１１と熱膨張率が略同等のものを選択することが好ましい。 After the above steps, as shown in FIG. 5A, the plurality of glass grains 211 are covered with homogeneous glass 120A and 120B on the surrounding six surfaces of the plurality of glass grains 211 in the recess 31A of the mold 30A. The step of heating and melting the homogeneous glasses 120A and 120B is carried out. Here, as the homogeneous glass 120A and 120B, float glass for building materials is used. In FIG. 5A, the description of the homogeneous glass 120B on the front side is omitted. As the homogeneous glasses 120A and 120B, it is preferable to select those having a thermal expansion coefficient substantially equal to that of each glass grain 211.

そして、これらガラス粒２１１及びフロートガラス１２０Ａ，１２０Ｂが入った型３０Ａを、電気炉或いはレンジ専用窯等の加熱器に入れる。次に、加熱器内の温度を所定の温度に設定して、ガラス粒２１１及びフロートガラス１２０Ａ，１２０Ｂを加熱する。この所定の温度は、各ガラス粒２１１が溶融しつつも、その界面が残る温度である。このような所定の温度としては、ガラス粒２１１の組成によって異なるが、例えば６００度以上１０００度以下である。その後、炉冷して、ガラス粒２１１及びフロートガラス１２０Ａ，１２０Ｂを固める。 Then, the mold 30A containing the glass grains 211 and the float glasses 120A and 120B is placed in a heater such as an electric furnace or a kiln dedicated to a microwave oven. Next, the temperature inside the heater is set to a predetermined temperature to heat the glass grains 211 and the float glasses 120A and 120B. This predetermined temperature is a temperature at which the interface remains while each glass grain 211 is melted. Such a predetermined temperature varies depending on the composition of the glass particles 211, but is, for example, 600 degrees or more and 1000 degrees or less. Then, the glass is cooled in a furnace to harden the glass grains 211 and the float glasses 120A and 120B.

上記工程の結果、図５（Ｂ）に示されるように、各ガラス粒２１１Ａ，２１１Ｂ，２１１Ｃは、熱膨張率や温度勾配等によって大きさが互いに変化しつつ接合して、複数の粒状ガラス２１Ａ，２１Ｂ，２１Ｃに変化する。また、これら粒状ガラス２１及び均質ガラス１２０Ａ，１２０Ｂも接合して１枚のガラス板１２を得る。ここで、型３０Ａの底面に非接触のガラス板１２の板面は、型３０Ａの底面に接触したガラス板１２の板面に比べて綺麗に仕上がっている。このため、綺麗に仕上がっている板面を墓石１０に取り付けた際の表面１２１とする。 As a result of the above steps, as shown in FIG. 5B, the glass grains 211A, 211B, 211C are joined while changing in size depending on the coefficient of thermal expansion, temperature gradient, etc., and a plurality of granular glasses 21A are joined. , 21B, 21C. Further, the granular glass 21 and the homogeneous glasses 120A and 120B are also joined to obtain one glass plate 12. Here, the plate surface of the glass plate 12 that is not in contact with the bottom surface of the mold 30A is finished more beautifully than the plate surface of the glass plate 12 that is in contact with the bottom surface of the mold 30A. For this reason, the beautifully finished board surface is the surface 121 when attached to the tombstone 10.

上記工程の後、図５（Ｃ）に示されるように、ガラス板１２の角に対して面取り加工を施す工程を実施する。具体的には、側面１２２と裏面１２３の境界部及び側面１２２同士の境界部を面取りする。なお、表面１２１と側面１２２との境界部は、ガラス板１２の製造工程中に、フロートガラス１２０Ａが溶融して変形することで自然に角が丸みを帯びた状態、すなわち面取りされた状態になる。この結果、図２及び図３に示されるガラス板１２を得ることができる。なお、表面１２１と側面１２２の境界部も面取りされた状態から更に面取りしてもよい。 After the above steps, as shown in FIG. 5C, a step of chamfering the corners of the glass plate 12 is carried out. Specifically, the boundary between the side surface 122 and the back surface 123 and the boundary between the side surfaces 122 are chamfered. The boundary between the surface 121 and the side surface 122 naturally has rounded corners, that is, a chamfered state, as the float glass 120A melts and deforms during the manufacturing process of the glass plate 12. .. As a result, the glass plate 12 shown in FIGS. 2 and 3 can be obtained. The boundary between the surface 121 and the side surface 122 may also be chamfered from the chamfered state.

以上、本実施形態に係るガラス板１２の製造方法によれば、複数の粒状ガラス２１がガラス板表面に露出しないように均質ガラス層１２５が内部領域１２４の周囲全面を囲うことができる。このため、粒状ガラス２１がガラス板表面に露出している場合に比べて、ガラス板内で温度変動が発生しても側面１２２を含むガラス板表面に生じ得る歪みを低減できる。この結果、ガラス板内に温度変動が発生しても割れ難いガラス板１２とすることができる。
＜第３実施形態＞ As described above, according to the method for manufacturing the glass plate 12 according to the present embodiment, the homogeneous glass layer 125 can surround the entire periphery of the internal region 124 so that the plurality of granular glasses 21 are not exposed on the surface of the glass plate. Therefore, as compared with the case where the granular glass 21 is exposed on the surface of the glass plate, it is possible to reduce the distortion that may occur on the surface of the glass plate including the side surface 122 even if the temperature fluctuates in the glass plate. As a result, the glass plate 12 can be made hard to break even if the temperature fluctuates in the glass plate.
<Third Embodiment>

第３実施形態では、図６を参照しながら、ガラス板１２を含むガラス板装置４０について説明する。 In the third embodiment, the glass plate device 40 including the glass plate 12 will be described with reference to FIG.

図６に示されるように、ガラス板装置４０は、ガラス板１２の他、一対の透明板４１と、枠体４２と、をさらに備える。 As shown in FIG. 6, the glass plate device 40 further includes a pair of transparent plates 41 and a frame body 42 in addition to the glass plate 12.

一対の透明板４１は、ガラス板１２を挟んだ両側においてガラス板の板面に離間対向して配置されている。これらの透明板４１は、ガラス板１２よりも機械的な強度が高くされている。 The pair of transparent plates 41 are arranged so as to be separated from each other on the plate surface of the glass plate on both sides of the glass plate 12. These transparent plates 41 have higher mechanical strength than the glass plate 12.

透明板４１の端部及びガラス板１２の端部は、例えばシリコンコーキング等により枠体４２に接着されている。これにより、枠体４２は、ガラス板１２の外周部（端部）と透明板４１の外周部（端部）を保持し、ガラス板１２は、枠体４２と透明板４１で囲まれた内部に密閉された形で収容される。 The end portion of the transparent plate 41 and the end portion of the glass plate 12 are adhered to the frame body 42 by, for example, silicon caulking or the like. As a result, the frame body 42 holds the outer peripheral portion (end portion) of the glass plate 12 and the outer peripheral portion (end portion) of the transparent plate 41, and the glass plate 12 is surrounded by the frame body 42 and the transparent plate 41. It is housed in a sealed form.

この密閉されている内部は、ガラス板１２と透明板４１の間に形成された隙間Ｇを有する。この隙間Ｇは、真空状態とされている。 The hermetically sealed interior has a gap G formed between the glass plate 12 and the transparent plate 41. This gap G is in a vacuum state.

以上、本実施形態に係るガラス板１２Ａの構成によれば、透明板４１が、ガラス板１２を挟んだ両側においてガラス板１２の板面に離間対向して配置されているので、ガラス板１２に直接熱や力が伝わることを防ぐことができる。この結果、ガラス板１２が熱や力によって割れることを抑制することができる。また、透明板４１はガラス板１２よりも強度が高いので、ガラス板１２の強度を弱くしてガラス板１２を加工し易くすると共に、ガラス板全体の強度を一層高めることができる。 As described above, according to the configuration of the glass plate 12A according to the present embodiment, the transparent plate 41 is arranged on both sides of the glass plate 12 so as to be separated from and opposed to the plate surface of the glass plate 12. It is possible to prevent direct heat and force from being transmitted. As a result, it is possible to prevent the glass plate 12 from being broken by heat or force. Further, since the transparent plate 41 has higher strength than the glass plate 12, the strength of the glass plate 12 can be weakened to facilitate processing of the glass plate 12, and the strength of the entire glass plate can be further increased.

また、透明板４１は、ガラス板１２よりも強度が高いので、ガラス板１２の強度を弱くしてガラス板１２を加工し易くすると共に、ガラス板装置４０全体の強度を一層高めることができる。 Further, since the transparent plate 41 has higher strength than the glass plate 12, the strength of the glass plate 12 can be weakened to facilitate processing of the glass plate 12, and the strength of the entire glass plate apparatus 40 can be further increased.

また、本実施形態に係るガラス板装置４０は、一対の透明板４１を備えるので、ガラス板１２の板厚方向の一対の面（表面１２１及び裏面１２３）の両方を保護することができる。また、ガラス板装置４０は、枠体４２も備えるので、ガラス板１２の側面１２２も保護することができる。 Further, since the glass plate device 40 according to the present embodiment includes a pair of transparent plates 41, it is possible to protect both the pair of surfaces (front surface 121 and back surface 123) of the glass plate 12 in the plate thickness direction. Further, since the glass plate device 40 also includes the frame body 42, the side surface 122 of the glass plate 12 can also be protected.

また、隙間Ｇが真空状態とされているので、隙間Ｇ内の温度と透明板４１の外部の温度差により透明板４１におけるガラス板側の面（内側の面）が曇ることを抑制することができる。 Further, since the gap G is in a vacuum state, it is possible to suppress fogging of the glass plate side surface (inner surface) of the transparent plate 41 due to the temperature difference between the temperature inside the gap G and the outside temperature of the transparent plate 41. it can.

以上、具体例を参照しつつ本発明の実施の形態について説明した。しかし、本発明はこれらの具体例に限定されるものではない。すなわち、これら具体例に、当業者が適宜設計変更を加えたものも、本発明の特徴を備えている限り、本発明の範囲に包含される。例えば、前述した各具体例が備える各要素およびその配置、材料、条件、形状、サイズなどは、例示したものに限定されるわけではなく適宜変更することができる。また、前述した各実施の形態が備える各要素は、技術的に可能な限りにおいて組み合わせることができ、これらを組み合わせたものも本発明の特徴を含む限り本発明の範囲に包含される。 The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. That is, those having a design modification appropriately made by those skilled in the art are also included in the scope of the present invention as long as they have the features of the present invention. For example, each element included in each of the above-mentioned specific examples and its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be appropriately changed. In addition, the elements included in each of the above-described embodiments can be combined as much as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

例えば、ガラス板１２の角が面取りされている場合を説明したが、面取りされていなくてもよい。 For example, the case where the corners of the glass plate 12 are chamfered has been described, but the corners of the glass plate 12 may not be chamfered.

また、ガラス板１２と枠体４２との間には、接着用のシリコンコーキングが設けられている場合を説明したが、接着用のシリコンコーキングだけでなく、ガラス板１２に衝撃が伝わるのを緩和するために、ゴム等のクッション部材が設けられてもよい。 Further, although the case where the silicon caulking for adhesion is provided between the glass plate 12 and the frame body 42 has been described, not only the silicon caulking for adhesion but also the shock transmitted to the glass plate 12 is alleviated. Therefore, a cushion member such as rubber may be provided.

また、ガラス板装置４０においてガラス板１２と透明板４１の間に形成された隙間Ｇは、真空状態とされている場合を説明したが、真空状態とされていなくてもよい。真空状態とされていない場合、隙間Ｇにシリカゲル等の吸湿剤を入れて、湿気を除去するようにしてもよい。 Further, although the case where the gap G formed between the glass plate 12 and the transparent plate 41 in the glass plate device 40 is in a vacuum state has been described, the gap G may not be in a vacuum state. When the vacuum state is not established, a moisture absorbing agent such as silica gel may be put in the gap G to remove the moisture.

ガラス板装置４０においてガラス板１２の外周部と透明板４１の外周部は、枠体４２で保持する場合を説明したが、ガラス板１２の外周部と透明板４１の外周部を保持するための保持体は、枠体４２に限定されない。例えば、保持体としてコーキングを用いてもよい。 In the glass plate device 40, the case where the outer peripheral portion of the glass plate 12 and the outer peripheral portion of the transparent plate 41 are held by the frame body 42 has been described, but for holding the outer peripheral portion of the glass plate 12 and the outer peripheral portion of the transparent plate 41. The holding body is not limited to the frame body 42. For example, caulking may be used as the retainer.

１０：墓石
１１：墓石本体
１２：ガラス板
２１，２１Ａ，２１Ｂ，２１Ｃ：粒状ガラス
４０：ガラス板装置
４１：透明板
４２：枠体
１２０Ａ，１２０Ｂ：均質ガラス
１２１：表面
１２２：側面
１２３：裏面
１２４：内部領域
１２５：均質ガラス層
２１１，２１１Ａ，２１１Ｂ，２１１Ｃ：ガラス粒 10: Tombstone 11: Tombstone body 12: Glass plates 21,21A, 21B, 21C: Granular glass 40: Glass plate device 41: Transparent plate 42: Frame 120A, 120B: Homogeneous glass 121: Front surface 122: Side surface 123: Back surface 124 : Internal region 125: Homogeneous glass layers 211,211A, 211B, 211C: Glass grains

Claims (9)

墓石の墓石本体に取り付けられるガラス板の製造方法であって、
型内において複数のガラス粒の周囲六面を均質ガラスで覆った状態で、前記複数のガラス粒と前記均質ガラスを加熱して溶融する工程と、
その後冷却して、互いに接合された複数の粒状ガラスを含む内部領域と前記内部領域の周囲六面の全面を覆う均質ガラス層とを備えるガラス板を得る工程と、
を備え、
前記均質ガラスは、前記複数のガラス粒の前記周囲六面の各面を覆う６枚のフロートガラスからなり、
前記均質ガラス層は、前記６枚のフロートガラスが溶融してなり、前記複数の粒状ガラスがガラス板表面に露出しないように前記内部領域の周囲六面の全面を囲う、ガラス板の製造方法。 It is a method of manufacturing a glass plate that is attached to the main body of a tombstone.
A step of heating and melting the plurality of glass grains and the homogeneous glass with the six surfaces around the plurality of glass grains covered with homogeneous glass in the mold.
After that, it is cooled to obtain a glass plate having an internal region containing a plurality of granular glasses bonded to each other and a homogeneous glass layer covering the entire surrounding six surfaces of the internal region.
With
The homogeneous glass is composed of six float glasses covering each of the six peripheral surfaces of the plurality of glass grains.
A method for producing a glass plate, wherein the homogeneous glass layer surrounds the entire six surfaces around the internal region so that the six float glasses are melted and the plurality of granular glasses are not exposed on the surface of the glass plate. 前記ガラス板表面は、表面、裏面及び側面からなり、
当該製造方法は、前記ガラス板を得る工程の後、前記裏面と前記側面との境界部を面取りする工程をさらに含む、請求項１に記載のガラス板の製造方法。 The front surface of the glass plate is composed of a front surface, a back surface and a side surface.
The method for manufacturing a glass plate according to claim 1, further comprising a step of chamfering a boundary portion between the back surface and the side surface after the step of obtaining the glass plate. 前記ガラス板表面は、表面、裏面及び側面からなり、
当該製造方法は、前記ガラス板を得る工程の後、前記表面と前記側面との境界部を面取りする工程をさらに含む、請求項１に記載のガラス板の製造方法。 The front surface of the glass plate is composed of a front surface, a back surface and a side surface.
The method for producing a glass plate according to claim 1, further comprising a step of chamfering a boundary portion between the surface and the side surface after the step of obtaining the glass plate. 前記ガラス板表面は、表面、裏面及び側面からなり、
当該製造方法は、前記ガラス板を得る工程の後、前記側面同士の境界部を面取りする工程をさらに含む、請求項１に記載のガラス板の製造方法。 The front surface of the glass plate is composed of a front surface, a back surface and a side surface.
The method for manufacturing a glass plate according to claim 1, further comprising a step of chamfering a boundary portion between the side surfaces after the step of obtaining the glass plate. 前記複数の粒状ガラスは、着色ガラスを含む、請求項１から４のいずれか一項に記載のガラス板の製造方法。 The method for producing a glass plate according to any one of claims 1 to 4, wherein the plurality of granular glasses include colored glass. 請求項１から５のいずれか一項に記載のガラス板の製造方法により製造されたガラス板に対し、前記ガラス板よりも強度が高い透明板を、前記ガラス板を挟んだ両側において前記ガラス板の板面に離間対向して配置し、保持体により、前記ガラス板の外周部と前記透明板の外周部を保持する、ガラス板装置の製造方法。 A glass plate manufactured by the manufacturing method for a glass plate according to any one of claims 1 to 5, the high strength transparent plate than the glass plate, the glass plate in both sides of the glass plates A method for manufacturing a glass plate device , in which the outer peripheral portion of the glass plate and the outer peripheral portion of the transparent plate are held by a holding body by arranging them so as to be separated from each other from the plate surface of the glass plate. 前記ガラス板と前記透明板の間に形成された隙間は、真空状態である、請求項６に記載のガラス板装置の製造方法。 The method for manufacturing a glass plate device according to claim 6, wherein the gap formed between the glass plate and the transparent plate is in a vacuum state. 請求項１から５のいずれか一項に記載のガラス板の製造方法により製造されたガラス板を、前記ガラス板が外部に露出するように墓石本体に取り付ける、墓石の製造方法。 The glass plate manufactured by the manufacturing method for a glass plate according to any one of claims 1 to 5, wherein the glass plate is attached to the tombstone body so as to be exposed to the outside, the manufacturing method of the tombstone. 請求項６又は７に記載のガラス板装置の製造方法により製造されたガラス板装置を、前記ガラス板装置が外部に露出するように墓石本体に取り付ける、墓石の製造方法。 The glass plate device manufactured by the manufacturing method for a glass plate according to claim 6 or 7, wherein the glass plate device attached to the tombstone body so as to be exposed to the outside, the manufacturing method of the tombstone.
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