JP3552009B2 - Roof tile - Google Patents

Description

【００５７】
「表１」に示した発明の構成、差込片の外縁、被覆片の外縁および内縁の特定を表した符号の説明は、次のとおりである。
Ａ 切り込みのある桟瓦の基本要素（３０、Ｘ、Ｙ）
Ｂ 差込片（２８）
Ｃ 差込片の外縁（３２）
頭側外縁部（３２ａ）
衿側外縁部（３２ｂ）
突き合わせ縁部（３２ｃ）
Ｄ 被覆片（４０）
Ｅ 被覆片の外縁（４２）
尻側外縁部（４２ａ）
桟側外縁部（４２ｂ）
突き合わせ縁部（４２ｃ）
Ｆ 桟瓦
Ｇ 差込片の外縁（３２）
衿側外縁部（３２ｂ）
突き合わせ縁部（３２ｃ）
Ｉ 被覆片の外縁（４２）
尻側外縁部（４２ａ）
突き合わせ縁部（４２ｃ）
Ｈ 差込片と被覆片の内縁（４４、４６）
【００５８】
【発明の実施の形態】
この発明の実施の形態に係る桟瓦の組み合わせ構造を図面を参照して説明する。
図１は発明の実施の形態その１の概略を示す桟瓦の頭側の差込片と尻側の被覆片の要部拡大平面図、図２はその２の同要部拡大平面図、図３はその３の同要部拡大平面図、図４はその４の同要部拡大平面図、図５はその５の同要部拡大平面図、図６はその６の同要部拡大平面図、図７はその７の同要部拡大平面図、図８はその８の同要部拡大平面図、図９は実施例に係る桟瓦の表面斜視図、図１０はその裏面斜視図、図１１は４枚の桟瓦による瓦屋根の組み合わせ構造を示す平面図、図１２は図９の差込片付近の要部拡大平面図、図１３は図１０の被覆片付近の要部拡大平面図、図１４は図１１における矢印Ｐ−Ｐ線の縦断面図、図１５は図１１における矢印Ｑ−Ｑ線の縦断面図、図１６は表２における実施例の桟瓦の各寸法を示す参考図、図１７は表２における従来品の桟瓦の各寸法を示す参考図、図１８は従来例の桟瓦の表面斜視図、図１９は従来例の桟瓦４枚による瓦屋根の組み合わせ構造を示す平面図、図２０は図１９における矢印Ｖ−Ｖ線の縦断面図である。
【００５９】
図１ないし図８を参照して、この発明の実施の形態の８種類を説明する。
その１は、図示を省略してあるが、少なくとも桟瓦本体に頭、尻、桟および衿が備えられるとともに、頭側の切り込みおよび尻側の切り込みを有する桟瓦である。
【００６０】
これらの構成は、以下に説明するこの発明の８種類の実施の形態において、共通する構成である。
また、以下の８種類の発明の実施の形態や実施例について言及しない構成は、断りのない限り共通する構成であり、その説明を援用する。
【００６１】
頭側の切り込みに肉薄の差込片２８が桟瓦本体の裏面寄りに設けられている。差込片２８の外縁３２が頭側の切り込み内において衿側寄りの頭縁を延長させた頭側外縁部３２ａと、頭側寄りの衿縁を延長させた衿側外縁部３２ｂと、前記した頭側外縁部３２ａと衿側外縁部３２ｂとの間の突き合わせ縁部３２ｃとから構成されている。
【００６２】
したがって、前記した先願の発明と比較してこの実施の形態の差込片２８の外縁３２は、頭側外縁部３２ａと衿側外縁部３２ｂとの間の突き合わせ縁部３２ｃとから構成され、交点のないものである。
【００６３】
他方、尻側の切り込みに肉薄の被覆片４０が桟瓦本体の表面寄りに設けられている。
被覆片４０の外縁４２が尻側の切り込みＹ内において桟側寄りの尻縁を延長させた尻側外縁部４２ａと、尻側寄りの桟縁を延長させた桟側外縁部４２ｂと前記した尻側外縁部４２ａと桟側外縁部４２ｂとの間の突き合わせ縁部４２ｃとから構成されている。
したがって、前記した先願の発明と比較してこの実施の形態の被覆片４０の外縁４２は、前記した桟側外縁部４２ｂと尻側外縁部３２ａとの間の突き合わせ縁部４２ｃとから構成され、交点のないものである（図１を参照）。
【００６４】
その２は、その１の構成と共通の構成を有するほかに、差込片２８と桟瓦本体の境界を形成する内縁４４が被覆片４０の外縁４２にほぼ対応して設けられるとともに、被覆片４０と桟瓦本体の境界を形成する内縁４６が差込片２８の外縁３２にほぼ対応して設けられてなるものである（図２を参照）。
【００６５】
その３は、差込片２８の外縁３２が頭側の切り込み内において頭側寄りの衿縁を延長させた衿側外縁部３２ｂと、その衿側外縁部３２ｂと衿側寄りの頭縁部３２ｄとの間の突き合わせ縁部３２ｃとからなるものである。
他方、被覆片４０の外縁４２が尻側の切り込み内において尻側寄りの桟縁を延長させた桟側外縁部４２ｂと、桟側寄りの尻縁を延長させた尻側外縁部４２ａと、前記した桟側外縁部４２ｂと尻側外縁部４２ａとの間の突き合わせ縁部４２ｃとからなるものである（図３を参照）。
【００６６】
その４は、その３の構成と共通の構成を有するほかに、差込片２８と桟瓦本体の境界を形成する内縁４４が被覆片４０の外縁４２にほぼ対応して設けられるとともに、被覆片４０と桟瓦本体の境界を形成する内縁４６が差込片２８の外縁３２にほぼ対応して設けられてなるものである（図４を参照）。
【００６７】
その５は、差込片２８の外縁３２が頭側の切り込み内において頭側寄りの衿縁を延長させた衿側外縁部３２ｂと、その衿側外縁部３２ｂと衿側寄りの頭縁部３２ｄとの間の突き合わせ縁部３２ｃとからなるものである。
他方、被覆片４０の外縁４２が尻側の切り込み内において桟側寄りの尻縁を延長させた尻側外縁部４２ａと、その尻側外縁部４２ａと尻側寄りの桟縁部４２ｄとの間の突き合わせ縁部４２ｃとからなるものである（図５を参照）。
【００６８】
その６は、その５の構成と共通の構成を有するほかに、差込片２８と桟瓦本体の境界を形成する内縁４４が被覆片４０の外縁４２にほぼ対応して設けられるとともに、被覆片４０と桟瓦本体の境界を形成する内縁４６が差込片２８の外縁３２にほぼ対応して設けられてなるものである（図６を参照）。
【００６９】
その７は、差込片２８の外縁３２が頭側の切り込み内において衿側寄りの頭縁を延長させた頭側外縁部３２ａと、頭側寄りの衿縁を延長させた衿側外縁部３２ｂと、前記した頭側外縁部３２ａと衿側外縁部３２ｂとの間の突き合わせ縁部３２ｃとからなるものである。
他方、被覆片４０の外縁４２が尻側の切り込み内において桟側寄りの尻縁を延長させた尻側外縁部４２ａと、その尻側外縁部４２ａと尻側寄りの桟縁部４２ｄとの間の突き合わせ縁部４２ｃとからなるものである（図７を参照）。
【００７０】
その８は、その７の構成と共通の構成を有するほかに、差込片２８と桟瓦本体の境界を形成する内縁４４が被覆片４０の外縁４２にほぼ対応して設けられるとともに、被覆片４０と桟瓦本体の境界を形成する内縁４６が差込片２８の外縁３２にほぼ対応して設けられてなるものである（図８を参照）。
【００７１】
【実施例】
この発明の実施例に係る桟瓦１０の構成を図９、図１０を参照して説明すると、知られているように山１４と谷１６が設けられている。
この実施例の桟瓦１０は、ＪＩＳ規格に示されるように谷１６の深さが３５ｍｍ以上に設けられている例である。
【００７２】
尻の表面に水返しのための突条１８、１９が衿から山１４にかけて２本設けられている。
そして、尻縁の突条１８の一部には外側を開放した凹部２０が２個設けられ、衿の表面に、尻から頭に向けて水返しのために突条２２が設けられている（図９を参照）。
【００７３】
また、衿の表面の突条２２の谷１６側であって、突条２２と平行になるように、尻から頭に向けて別の突条２３が設けられている。
この突条２３は水返しの目的のほかに、この桟瓦１０の衿側に重ねられる別の桟瓦１０の桟縁の位置決めと幅方向の妄動の抑制を図ることを意図しているものである（図９を参照）。
【００７４】
他方、図１０を参照して明らかなように、頭の裏面に水返しのための突条２４、２５が衿から桟に向けて２本設けられている。
これらの突条２４、２５は、この桟瓦１０の頭側を別の桟瓦１０の尻側に重ねたとき、この２本の突条２４、２５の間に、先に説明した別の桟瓦１０の尻寄りの表面に設けられた突条１９が配置されることにより雨水の浸入防止のほか、長さ方向の妄動抑制を図っているものである。
【００７５】
さらに、桟の裏面の頭から尻に向けて突条２６が設けられている。
また、尻側の裏面に一対の尻剣２７、２７が設けられ、尻剣２７の傍らに小さな突起２９が設けられている。
【００７６】
そこで、引続き、この発明の桟瓦１０の特徴について説明すると、略方形の頭側の切り込みＸに肉薄状であって、かつ差込片２８が桟瓦本体３０の裏面寄りに設けられている（図９、図１１および図１２を参照）。
この差込片２８の肉厚は一般的には桟瓦本体３０の肉厚の２分の１程度が適当であり、差込片２８の底面は桟瓦本体３０の裏面と同一面を形成している。
【００７７】
そして、この差込片２８の外縁３２は、頭側の切り込みＸ内において衿縁寄りの頭縁を延長させた頭側外縁部３２ａと、頭縁寄りの衿縁を延長させた衿側外縁部３２ｂと、さらに前記した頭側外縁部３２ａと衿側外縁部３２ｂとの間の突き合わせ縁部３２ｃとから構成されている（図９および図１２を参照）。
【００７８】
つまり、この差込片２８の外縁３２は、桟瓦１０の頭側の切り込みＸの範囲内に存在し、切り込みＸの範囲外に存在しないことを意味する。
【００７９】
図示した外縁３２は、頭側外縁部３２ａ、衿側外縁部３２ｂおよび突き合わせ縁部３２ｃによって形成され、頭側外縁部３２ａと衿側外縁部３２ｂとの間の突き合わせ縁部３２ｃは直線を描いているが、もとより直線に制限する趣旨ではなく、後述する被覆片３４の内縁３８のとほぼ対称であって、切り込みＸの範囲内であれば円弧、波形あるいは不定形を描くことは自由である。
【００８０】
他方、略方形の切り込みＹに肉薄の被覆片４０が桟瓦本体３０の表面寄りに設けられている（図１０および図１３を参照）。
この被覆片４０の肉厚は差込片２８と同様に一般的には桟瓦本体３０の肉厚の２分の１程度が適当であり、被覆片４０の表面は桟瓦本体３０の表面と同一面を形成している。
【００８１】
したがって、後述するように被覆片４０の下方に差込片２８が差込まれることにより、両者の肉厚は、桟瓦本体３０の肉厚と等しくなり、両者２８、４０の裏面と表面は、それぞれ桟瓦本体３０の表裏と同一面を形成するため、違和感を生ずることがない。
【００８２】
そして、被覆片４０の外縁４２は尻側の切り込みＹ内において桟縁寄りの尻縁を延長させた尻側外縁部４２ａと、尻縁寄りの桟縁を延長させた桟側外縁部４２ｂと、前記した尻側外縁部４２ａと桟側外縁部４２ｂとの間の突き合わせ縁部４２ｃとから構成されている。
【００８３】
つまり、この被覆片４０の外縁４２は、尻側の切り込みＹの範囲内に存在し、切り込みＹの範囲外に存在しないことを意味する。
【００８４】
図示した被覆片４０の外縁４２は、尻側外縁部４２ａおよび桟側外縁部４２ｂおよび突き合わせ縁部４２ｃによって形成され、突き合わせ縁部４２ｃが直線を描いているが、もとより直線に制限する趣旨ではなく、切り込みＹの範囲内であれば円弧、波形あるいは不定形を描くことは自由である。
【００８５】
差込片２８と桟瓦本体３０の境界を形成する内縁４４は被覆片４０の外縁４２にほぼ対応して設けられている。
前記した内縁４４は、被覆片４０の外縁４２を構成する尻側外縁部４２ａ、桟側外縁部４２ｂおよび突き合わせ縁部４２ｃにほぼ対応した横内縁部４４ａ、縦内縁部４４ｂ、被突き合わせ内縁部４４ｃから構成されている（図１２を参照）。
【００８６】
そして、被覆片４０と桟瓦本体３０の境界を形成する内縁４６は差込片２８の外縁３２にほぼ対応して設けられている。
【００８７】
したがって、被覆片４０の内縁４６は差込片２８の外縁３２を構成する頭側外縁部３２ａ、衿側外縁部３２ａおよび突き合わせ外縁部３２ｃにほぼ対応した横内縁部４６ａ、縦内縁部４６ｂおよび被突き合わせ内縁部４６ｃから構成されている（図１３を参照）。
【００８８】
これらの内縁４４、４６の被突き合わせ内縁部４４ｃ、４６ｃは、被覆片４０の下方に差込片２８を差し込んだときに、被覆片４０の被突き合わせ内縁部４４ｃに差込片２８の突き合わせ外縁部３２ｃが当接することやまた差込片２８の被突き合わせ内縁部４６ｃに被覆片４０の突き合わせ外縁部４２ｃが当接することあるいは、これらの突き合わせ外縁部３２ｃ、４２ｃが差込片２８、被覆片４０に位置する条件を満たせば、その形状は問わない。
【００８９】
差込片２８の外縁３２を構成する頭側外縁部３２ａおよび衿側外縁部３２ｂを得るため、頭側の切り込みＸ内において衿縁寄りの頭縁を、また頭縁寄りの衿縁をそれぞれ延長させている理由は次のとおりである。
【００９０】
差込片２８の内縁４４と被覆片４０の外縁４２が当接されるものの、依然として両縁４４、４２間に間隙が生ずることは否定できない。
したがって、雨水はこの間隙を通じて差込片２８の表面に浸入することも否定できない。
【００９１】
この場合、差込片２８は、被覆片４０の下方に位置することにより、浸入する雨水の受け皿の役割も果たすことになるから、本来的にはその面積は広いことが所望されるものの、頭側の切り込みＸ全体を占めるような大きさにすれば（方形状にする例）、先願について説明したとおり、桟瓦１０の生産工程上において差込片２８が損傷を受けるなどのおそれがある。
【００９２】
他方、頭側外縁部３２ａと衿側外縁部３２ｂを省略した場合、差込片２８の外縁３２が頭縁と衿縁を直接結んだものであって、つまり差込片２８が略三角形を呈することになるが、このようにすれば、衿縁寄りの頭縁と桟縁寄りの尻縁には雨水の受け皿となる差込片２８の一部が存在しないことになり、とくに衿縁に向けて浸入してくる雨水に対する受皿となる部分がないため、野地材Ｎに達するおそれがある。
【００９３】
次に桟瓦１０の組み合わせについて説明すると、一般的に多数の桟瓦１０群によって構成されるものの、その基本は以下に説明するように４枚の桟瓦１０により、従来例と基本的に同じ手段によって行われる。
【００９４】
そこで、少なくとも４枚の桟瓦１０ａ、１０ｂ、１０ｃ、１０ｄを用意し、図１１、図１４および図１５を参照して明らかなように、第１の桟瓦１０ａの衿側上に第２の桟瓦１０ｂの桟側を重ねることにより、桟と衿とに重ね部４８が形成される。
【００９５】
この発明は、前記した桟と衿とによる重ね部４８（弯曲された桟の裏面と衿の表面による重合による組合わせ）の面積を減少させることは桟瓦１０の形態から困難性が高いため、桟瓦１０の有効活用面積の増加を図ろうとするものではなく、頭と尻とによる重ね部５０の面積を減少させることにより、桟瓦１０の有効活用面積の増加を図ろうとするものであるから、この重ね部４８の幅は、従来例の桟瓦Ｗの重ね部Ｓｍの幅と同じである。
なお、この発明は、桟と衿とによる重ね部４８の活用面積を広くしようとするものではなく、桟と衿とによる重ね部４８の活用については従来例と比較して変化しないことを念のため明らかにする。
【００９６】
そして、第１の桟瓦１０ａの尻側に第３の桟瓦１０ｃの頭側が重ねられるとともに、第２の桟瓦１０ｂの被覆片４０の下方に第３の桟瓦１０ｃの差込片２８が差し込まれ、第２の桟瓦１０ｂの尻側に第４の桟瓦１０ｄの頭側が重ねられ、第３の桟瓦１０ｃの衿側に第４の桟瓦１０ｄの桟側を重ねる。
【００９７】
よって、第１の桟瓦１０ａと第３の桟瓦１０ｃの頭と尻による重なりにより、重ね部５０が形成される。
そして、この重ね部５０の長さは、差込片２８あるいは被覆片４０の長さ方向の長さにほぼ相当している。
【００９８】
ところで、従来例の桟瓦Ｗにおいては、第３の桟瓦Ｗｃの頭が第２の桟瓦Ｗｂの尻側の切り込みＹｂより頭側に臨み、第３の桟瓦Ｗｃの頭側の切り込みＸｃと第２の桟瓦Ｗｂの尻側の切り込みＹｂが嵌合され、第１の桟瓦Ｗａの尻側と第３の桟瓦Ｗｃの頭側により重ね部Ｓｎが形成され、この重ね部Ｓｎの長さは、切り込みＸｃの縦辺Ｘｖと切り込みＹｂの縦辺Ｙｖを加算した長さに相当する。
【００９９】
これに対して、この発明の実施の形態における桟瓦１０の差込片２８および被覆片４０の長さおよび幅をそれぞれ従来例の桟瓦Ｗの切込みＸ、Ｙの縦辺Ｘｖ、Ｙｖと同じ寸法にすれば、頭と尻とによる重ね部５０の長さが従来例の桟瓦Ｗと比較して半減することは明らかであり、結局、頭と尻とによる重なり部５０の面積が２分の１に減少することになる。
【０１００】
また、第２の桟瓦１０ｂの尻側と第４の桟瓦Ｗｄの頭側により、別の重ね部５０が形成されるが、この重ね部５０の長さもまた前記した第１の桟瓦１０ａと第３の桟瓦１０ｃによって構成される重ね部５０の長さに等しく形成される。
【０１０１】
因みに、この発明の実施の形態による桟瓦Ｗと従来品の桟瓦の形状寸法、そして単位面積（３．３平方メートル）当たりの葺き数を対比すると「表２」に示すとおりである。
【０１０２】
【表２】

【０１０３】
「表２」を参照すると明らかなとおり、一般的に広く採用される桟瓦としてたとえば、寸法区分により５３Ａ版と称される従来の瓦の場合では、単位面積当たり５３枚を必要としたものが、この発明の実施の形態の桟瓦の場合では、４６枚で足り、１３％以上その必要枚数を減ずることができたことが示されている。
さらに、桟瓦の大きさが小さい形態になるにしたがって、一層単位面積当たりの桟瓦の必要枚数を従来例と比較して減少することも明らかになったことを示している。
【０１０４】
また、前記したように４枚の桟瓦１０ａ、１０ｂ、１０ｃ、１０ｄが組み合わせられることにより、第３の桟瓦１０ｃの差込片２８と第２の桟瓦１０ｂの被覆片４０との間に浸入経路５２が階段状に形成される（図１４を参照）。
【０１０５】
そして、この浸入経路５２は、第２および第３の桟瓦１０ｂ、１０ｃの表面から第３の桟瓦１０ｃの差込片２８の表面に向かう第１の垂直経路５４、第１の垂直経路５４から引き続いて軒側に向かうとともに垂直経路５２に対してほぼ直角方向に設けられた水平経路５６、水平経路５６に引続きしかも直角方向であって第１の桟瓦１０ａに向かう第２の垂直経路５８から構成される（図１４を参照）。
【０１０６】
したがって、強風などに伴って第１の垂直経路５４に浸入した雨水は、水平経路５６および第２の垂直経路５８へ誘導され、雨水が第１の桟瓦１０ａ側に達するまでにその勢いが著しく減じられるので、雨水が逆流して野地材Ｎ側へ浸入させないように配慮されている。
【０１０７】
さらに、差込片２８には衿側外縁部３２ｂが設けられ、被覆片４０には桟側外縁部４２ａが設けられているので、差込片２８を被覆片４０の下方に差し込むことにより、切り込みＸ、Ｙ内には雨水を受ける二層の受皿となる部分が形成される。
【０１０８】
したがって、これらの切り込みＸ、Ｙに浸入した雨水は、まず被覆片４０によって第１の桟瓦１０ａの谷側に確実に誘導され、仮に被覆片４０の外縁４２側から被覆片４０の下方へ雨水が浸入しても、被覆片４０下方には差込片２８が存在し、かつ衿側外縁部３２ｂが設けられているので、切り込みＸ、Ｙを越えて衿側に浸入することがなく、第１の桟瓦１０ａの谷側に確実に誘導されるので、野地材Ｎ側を損傷させることがない。
【０１０９】
このことは、従来の桟瓦Ｗにおいて第２の桟瓦Ｗｂの切り込みＹｂの縦辺Ｙｖと第３の桟瓦Ｗｃの頭側の衿縁との当接部分に達する雨水が縦辺Ｙｂと衿縁の当接部分に入り込み、第１の桟瓦Ｗａの衿縁を通じて野地材Ｎに至り、野地材Ｎ側を損傷させるという問題を解消したことにほかならない。
【０１１０】
なお、この発明に係る桟瓦１０を粘土により製造する場合、前記した課題の解決のほかに、次の製造工程上の有利性をも有するのでこの点について言及する。
【０１１１】
粘土瓦の製造は、乾燥後の瓦素地を焼成する際に、尻を底面としていわゆる焼成台車の棚上に起立させて行われることが一般的に知られている。
この場合、桟瓦は谷と桟との構成から断面略円弧状に形成され、一般的に尻側には尻剣が設けられていることと相待って起立させることが可能ではあった。
【０１１２】
しかし、起立させることが可能であるとしても、尻側の切込みによる空所が形成されている。
したがって、切り込みを備えた桟瓦の尻側を底面として焼成台車の棚上に起立させることは依然として不安定性が残存するものの、解消されないまま焼成台車を利用して焼成されているのが実情である。
このため、焼成台車の走行中の揺動などにより桟瓦が転倒するおそれがあり、生産技術上の問題であった。
【０１１３】
これに対してこの発明は、前記の問題点の解決を行うことができるようにするため、先に説明したように、桟瓦１０の尻側の切り込みＹに被覆片４０が設けられており、この被覆片４０の外縁４２の一部である尻側外縁部４２ａは尻縁を桟縁に向けて延長されることにより形成されているから、従来の桟瓦の切込みによる空所が低減する。
【０１１４】
したがって、従来例では、空所が存在することにより、尻側を底面として起立させる場合、尻の面積が桟瓦の幅方向の断面に比較して少なくなり、不安定要素を構成したが、被覆片４０が設けられることにより、空所をほぼ埋めることになるため、起立面となる尻の面積が増加し、不安定要素を低減するので、従来発生するおそれがあった転倒の問題を解消する利点も有する。
【図面の簡単な説明】
【図１】発明の実施の形態その１の概略を示す桟瓦の頭側の差込片と尻側の被覆片の要部拡大平面図である。
【図２】その２の同要部拡大平面図である。
【図３】その３の同要部拡大平面図である。
【図４】その４の同要部拡大平面図である。
【図５】その５の同要部拡大平面図である。
【図６】その６の同要部拡大平面図である。
【図７】その７の同要部拡大平面図である。
【図８】その８の同要部拡大平面図である。
【図９】実施例に係る桟瓦の表面斜視図である。
【図１０】図９の裏面斜視図である。
【図１１】４枚の桟瓦による瓦屋根の組み合わせ構造を示す平面図である。
【図１２】図９の差込片付近の要部拡大平面図である。
【図１３】図１０の被覆片付近の要部拡大平面図である。
【図１４】図１１における矢印Ｐ−Ｐ線の縦断面図である。
【図１５】図１５は図１１における矢印Ｑ−Ｑ線の縦断面図である。
【図１６】表２における実施の形態の桟瓦の各寸法を示す参考図である。
【図１７】表２における従来品の桟瓦の各寸法を示す参考図である。
【図１８】従来例の桟瓦の表面斜視図である。
【図１９】従来例の桟瓦４枚による瓦屋根の組み合わせ構造を示す平面図である。
【図２０】図１９における矢印Ｖ−Ｖ線の縦断面図である。
【符号の説明】
２８ 差込片
３０ 桟瓦本体
３２ 差込片の外縁
３２ａ 差込片の頭側外縁部
３２ｂ 差込片の衿側外縁部
３２ｃ 差込片の突き合わせ縁部
３２ｄ 差込片の頭縁部
４０ 被覆片
４２ 被覆片の外縁
４２ａ 被覆片の尻側外縁部
４２ｂ 被覆片の桟側外縁部
４２ｃ 被覆片の突き合わせ縁部
４２ｄ 被覆片の桟縁部
４４ 差込片と桟瓦本体の境界を形成する内縁
４６ 被覆片と桟瓦本体の境界を形成する内縁[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roof tile.
More specifically, the present invention relates to a cross tile capable of increasing the effective utilization area per cross tile and suppressing the leakage of rainwater.
[0002]
[Prior art]
Among the many types of roof tiles used, roof tiles are the most used.
Therefore, it goes without saying that the total weight of the tiled roof is greatly affected by the tiling.
[0003]
Although reducing the total weight of the tiled roof without compromising the function of the tiled roof has been demanded by the industry in advance, there are still many problems with traditional tiling.
[0004]
In addition, there is a problem that rainwater infiltrates from the fitting portion between the cut portion on the head side and the cut portion on the buttocks side, particularly when the weather is severe, and often damages a field material laid below the cross tile.
[0005]
Such a general conventional example will be specifically described with reference to FIGS. In the Japanese-style shingle W (Japanese Industrial Standard A5208 [before the revision in November 1996]), it is called "Japanese-style shingle straw". Are represented as “W”), as shown in FIG. 18, where peaks and valleys are provided and the cross section is formed in a substantially wave shape.
[0006]
In general, the cross tile W is a cross section near the mountain side, a collar or plug in near the valley side, a head near the eaves side when roofed, and a bottom near the ridge side. Therefore, the conventional example and the crosspiece W of the present invention will be described below based on these terms.
Also, in this specification, the terms "head edge", "butt edge", "crossing edge" and "collar edge" are intended to mean the respective ends, and are used as described above unless otherwise specified. .
[0007]
In order to connect the adjacent tiles W to each other when the roof tile W is laid on the roof, a square head-side cut is formed in each of the corner formed by the head and the collar and the corner formed by the buttocks and the crosspiece. It is known that X and a butt side notch Y are formed (see FIGS. 17 and 18).
[0008]
By providing the head side notch X, the vertical side Xv is arranged inside the head side notch X in the length direction (meaning the direction from the head side to the buttocks side) in the width direction (the direction from the head side to the buttocks side). A width side Xh is formed in the direction from the crosspiece side to the collar side (see FIG. 18).
Further, inside the cut Y on the butt side, a vertical side Yv is formed in the length direction of the cross tile W, and a width piece Yh is formed in the width direction (see FIG. 18).
[0009]
As shown in FIG. 19, it is also known that at least four of these cross tiles W are laid to form a tile roof of at least one unit.
[0010]
Therefore, a description will be given of the roofing by the four tiles W as a unit. The second tile tile Wb is overlapped on the collar side of the first tile tile Wa, and the third tile is placed on the tail side of the first tile tile Wa. The head side of the roof tile Wc is overlapped, and the cut Yb on the tail side of the second roof tile Wb and the cut Xc on the head side of the third roof tile Wc are fitted to each other such that no gap is formed between the cuts Yb and Xc. The roof side of the fourth roof tile Wd is overlapped on the collar side of the third roof tile Wc, and the head side of the fourth roof tile Wd is stacked on the bottom side of the second roof tile Wb. (See FIG. 19).
[0011]
Thus, the overlapping portion Sm formed by the crosspiece and the collar is formed by the overlap between the collar side of the first crosspiece Wa and the crosspiece side of the second crosspiece Wb.
The width of the overlapping portion Sm corresponds to the width side Xh or the width side Yh described above, and the length of the overlapping portion Sm corresponds to a length obtained by subtracting the vertical sides Xv and Yv from the length of the tile W, The overlapping portion Sm is similarly formed by the crosspiece and the collar of the third crosspiece Wc and the fourth crosspiece Wd (see FIG. 19).
[0012]
On the other hand, an overlapping portion Sn formed by the head and the buttocks is formed by the overlap of the buttocks side of the first roof tile Wa and the heads of the third roof tiles Wc.
The width of the overlap portion Sn is the same as the width of the cross tile W, and the length of the overlap portion Sn is formed by the engagement of the cuts Xc and Yb with each other, and thus the length obtained by adding the vertical sides Xv and Yv. And the area of the overlapping portion Sn is calculated from the length of the width of the cross tile W and the sum of the vertical sides Xv and Yv (see FIG. 19).
[0013]
In this case, since the cut Xc on the head side of the third tile Wc and the cut Yb on the tail side of the second tile Wb are formed to correspond to each other, the cuts Xc and Yb of both are fitted to each other. As a result, it is known that both cross tiles Wb and Wc are prevented from being perturbed.
[0014]
To describe this point in more detail, the width side Xh of the cut Xc on the head side of the third roof tile Wc and the width piece Yh of the cut Yb on the rear side of the second roof tile Wb abut each other.
[0015]
Therefore, the head edge of the third tile Wc faces the head of the first tile Wa more than the position of the cut Yb on the tail side of the second tile Wb.
The distance between the head edge of the third roof tile Wc and the width side Yh of the cut Yb on the rear side of the second roof tile Wb is set substantially equal to the vertical side Xv of the cut Xc on the head side of the third roof tile Wc. You.
[0016]
On the other hand, the trailing edge of the second tile Wb faces the trailing edge of the fourth tile Wd from the position of the cut Xc on the head side of the third tile Wc.
The distance between the bottom edge of the second tile Wb and the width Xh of the cut Xc on the head side of the third tile Wc is set substantially equal to the vertical side Yv of the cut Yb on the tail of the second tile Wb. You.
[0017]
The four roof tiles Wa, Wb, Wc, Wd roofed in this manner are the minimum units constituting the tile roof, and the tile roof of the minimum unit is continuously provided so that the tile roof of a house or the like can be formed. can get.
[0018]
Therefore, the head side of the third rail tile Wc is overlapped on the tail side of the first rail tile Wa, and the cut Yb on the tail side of the second rail tile Wb is engaged with the cut Xc on the head side of the third rail tile Wc. By fitting the side of the fourth cross tile Wd on the collar side of the second cross tile Wb, the derailment of the cross tile W can be suppressed, and there is little gap between the cuts Yb and Xc. The intended purpose was achieved in that intrusion could be suppressed.
[0019]
However, the smaller the area of both the overlapping portions Sm and Sn is, the more the effective utilization area per crosspiece W can be increased. However, the overlapping area is occupied by the two types of overlapping portions Sm and Sn. It is unavoidable that the ratio becomes relatively large, and the actual utilization area of each crosspiece W is limited.
[0020]
In addition, the fourth cross tile Wd is overlapped on the fitting portion between the cut X on the head side and the cut Y on the buttocks, and the corner of the buttocks and the collar of the first cross tile Wa is located below the fitting portion. However, since the width sides Xh and Yh and the vertical sides Xv and Yv that form the cuts X and Y are only in contact with each other, the gap generated by these contact portions is generally small. However, it is still unavoidable to remain, and when the weather is intense, especially when the wind and rain passes through the remaining gap over the bottom of the first crosspiece Wa and near the corner of the collar, and below the third crosspiece Wc. The risk of infiltration into the laid field material N side was not small (see FIG. 20).
[0021]
When the above problems are further mentioned, it is required that the head sides of the first and second cross tiles Wa and Wb are orderly unified, and similarly, the head sides of the third and fourth cross tiles Wc and Wd are aligned. However, in this case, the cut Xc on the head side of the third roof tile Wc and the cut Yb on the rear side of the second roof tile Wb are fitted, and the head of the fourth roof tile Wd is fitted to the rear side of the second roof tile Wb. The side of the fourth tile Wb must be overlapped with the side of the third tile Wc on the collar side of the third tile Wc.
[0022]
Therefore, inevitably, the length (the length in the direction from the head side to the butt side) of the overlapping portion Sn between the buttocks and the head of the first and third shingles Wa and Wc is the third shingle Wc as described above. Is substantially equal to the sum of the vertical side Xv of the cut Xc on the head side and the vertical side Yv of the cut Yb on the tail side of the second tile Wb.
[0023]
This means that the area occupied by the overlapping portion Sn formed by the head and the buttocks increases with respect to the entire area of the crosspiece W, and the area of the overlapping portion Sm formed by the crosspiece and the collar is short of the crosspiece W necessary per unit area (For example, the number of roofs per 3.3 square meter) as a result, the load on the house increases, and a problem has arisen that a structure of the house is required to withstand the load of the tiled roof.
[0024]
As another example, in FIG. 7 of Japanese Utility Model Publication No. 7-14519, a thin, substantially triangular paragraph portion 8 is provided near the back surface of the cut on the head side, while the above-described structure is described near the front surface of the cut on the butt side. A cross tile having a thin, substantially triangular portion 5 corresponding to the paragraph portion 8 is described, and the paragraph portion 8 is inserted into the back surface of the triangular portion 5 of an adjacent cross tile, whereby rainwater at a cut-in fitting portion is formed. We try to control intrusion.
[0025]
However, in this example, even if it is possible to suppress the infiltration of rainwater in the fitting part of the notch, it is not possible to increase the effective utilization area of the roof tiles for roofing and to reduce the weight of the tile roof Not mentioned.
[0026]
In order to solve the above-mentioned problems, the applicant of the present application has previously filed a patent application of Japanese Patent Application No. 181168/1996. The crosspiece has a rectangular insertion piece provided near the back surface, and a covering piece corresponding to the insertion piece is provided near the front surface at a corner formed by the buttocks and the crosspiece.
[0027]
Then, at least four such tiles are provided, the side of the second tile is overlapped on the collar side of the first tile, the head of the third tile is overlapped on the tail side of the first tile, and the second tile is overlapped. The insertion piece of the third tile is inserted below the covering piece of the third tile, the head side of the fourth tile is overlapped on the tail side of the second tile, and the fourth tile is placed on the collar side of the third tile. By comparing the area from the head side to the buttocks side in the overlapping part with the head and buttocks, the length of the crosspiece is equal to the length of the insertion piece or covering piece, and It can be reduced by the area calculated by multiplying the width, and by increasing the effective utilization area in the length direction of the roof tile, the number of roof tiles required per unit area of the tile roof can be reduced. Therefore, it describes the configuration and operational effects such as contributing to weight reduction of tiled roof. .
[0028]
Therefore, as compared with the conventional traditional roof tile W or the roof tile according to the invention described in Japanese Utility Model Publication No. 7-14519, the effective use area of the roof tile per one is increased, and the area from the fitting portion by the cut is increased. It can be evaluated in that it can suppress infiltration of rainwater.
[0029]
However, a substantially rectangular thin insertion piece is provided to fill the entire area in the notch on the head side, and a substantially rectangular thin coating piece is provided to fill the entire area in the notch on the butt side. Since the outer ends of the insertion piece and the covering piece occupy the maximum area of the cut (substantially rectangular), the fact that these are formed thinner together with the production process of this shingle During the distribution process, there is a problem that the outer edges of the insertion piece and the covering piece are easily damaged.
In addition to physical damage due to transportation in the process from molding to baking, there is a risk that the outer ends of the insert and the cover are deformed due to, among other things, the thermal operation of the drying and baking processes.
[0030]
Furthermore, since the inner edge that forms the boundary between the insert piece and the tile body and the inner edge that forms the boundary between the covering piece and the tile body are formed at right angles, the heat of the drying step and the firing step starts from the right-angled portion of the inner edge. There was a risk that cracks were generated due to manual operation.
[0031]
[Problems to be solved by the invention]
The problem to be solved by the present invention is that, in the conventional roof tiles, the effective utilization area per roof tile is limited in the roofing, and the utilization area is reduced, so that an increase in the weight of the tile roof is avoided. In addition to this, there is a risk that the insert piece or the cover piece may be damaged or deformed in the production process.
An object of the present invention is to provide an effective utilization area for roofing of a roof tile, to contribute to a reduction in the weight of a tile roof, and to suppress damage and deformation of an insert piece and a cover piece in a production process.
[0032]
Still another object of the present invention is to suppress cracks that are likely to occur during the production process at the inner edge that is the boundary between the insertion piece and the main body of the tile or the inner edge that is the boundary between the covering piece and the main body of the tile.
[0033]
Means for Solving the Problems and Functions and Effects
The cross tile according to the first aspect of the present invention is a cross tile having a head, a tail, a cross, and a collar on a main body of the cross tile, and having a cut at the head side and a cut at the rear side, wherein a thin insertion piece is provided at the cut at the head side. A head side outer edge portion provided near the back surface of the tile roof main body, and the outer edge of the insertion piece extends the head edge closer to the collar side in the cut on the head side, and a collar side extending the collar edge closer to the head side An outer edge portion, and a butt edge portion between the head-side outer edge portion and the collar-side outer edge portion. On the other hand, a thin covering piece is provided in the notch-side cut near the surface of the main body, and the covering piece is provided. The outer edge of the butt side extends the butt side near the butt side in the cut on the butt side, the butt side outer edge where the butt edge near the pier side is extended, and the above-mentioned pier side outer edge and the butt side And a butt edge between the outer edge and the outer edge.
[0034]
The cross tile according to the second aspect of the present invention is the cross tile according to the first aspect,
An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. It is characterized by becoming.
[0035]
The cross tile according to the third aspect of the present invention is a cross tile having a head, a tail, a cross, and a collar on a cross tile main body, and having a cut on a head side and a cut on a rear end.
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece is formed by extending the collar side closer to the head side in the cut on the head side, and the butting edge between the collar side outer edge and the head edge closer to the collar side. Become
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is a butt side outer edge portion in which the outer edge of the butt side is extended in the incision of the butt side, the outer edge portion of the butt side in which the outer edge of the butt side is extended, and the aforementioned outer edge of the pier side And a butting edge between the outer edge of the buttocks.
[0036]
The cross tile according to the fourth aspect of the present invention is the cross tile according to the third aspect,
An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. It is characterized by becoming.
[0037]
The cross tile according to the fifth aspect of the present invention is a cross tile having a head, a tail, a cross, and a collar provided on a main body of the cross tile, and having a cut at a head side and a cut at a rear end.
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece is formed by extending the collar side closer to the head side in the cut on the head side, and the butting edge between the collar side outer edge and the head edge closer to the collar side. Become
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is composed of a buttocks side outer edge portion in which the buttocks side is extended in the buttocks side cut, and a butted edge between the buttocks side outer edge and the buttocks side bar edge. It is characterized by the following.
[0038]
The cross tile of the invention according to claim 6 is the cross tile according to claim 5,
An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. It is characterized by becoming.
[0039]
The cross tile according to the invention according to claim 7, wherein the cross tile main body is provided with a head, a butt, a cross, and a collar, and has a head-side cut and a butt-side cut,
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece extends the head edge closer to the collar side in the notch on the head side, the outer edge portion of the collar side extending the collar edge closer to the head side, and the above-described head outer edge Part and the butting edge between the collar side outer edge,
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is composed of a buttocks side outer edge portion in which the buttocks side is extended in the buttocks side cut, and a butted edge between the buttocks side outer edge and the buttocks side bar edge. It is characterized by the following.
[0040]
The cross tile according to the invention of claim 8 is the cross tile according to claim 7,
An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. It is characterized by becoming.
[0041]
Here, the outer edge of the insertion piece is formed of a head-side outer edge, a collar-side outer edge, and a butted edge between the head-side outer edge and the collar-side outer edge within the head-side cut, according to the prior application. According to the invention of (Japanese Patent Application No. 181168), the outer edge of the insertion piece occupies the entire area of the cut by the intersection of the extension line of the outer edge portion of the head side and the outer edge portion of the collar side and the intersection of these extension lines, and has a substantially rectangular shape. The present invention refers to a configuration formed so as to connect the outer ends of these two extended lines and having at least the above-mentioned intersection.
[0042]
In addition, the fact that the outer edge of the covering piece is within the buttocks side outer edge, the crosspiece outer edges, and the buttocks side notch, and includes the butting edges between the buttocks side outer edges and the crosspiece outer edges, In the invention of Japanese Patent Application No. Hei 08-168168, the outer edge of the covering piece occupies the entire area of the cut by the intersection of the extension line of the head-side outer edge portion and the collar-side outer edge portion with a substantially square shape. However, the present invention refers to a configuration formed so as to connect the outer ends of these two extended lines and having at least the above-mentioned intersection.
[0043]
Here, the inner edge forming the boundary between the insertion piece and the crosspiece main body substantially corresponds to the outer edge of the covering piece, and the inner edge forming the boundary between the coating piece and the crosspiece main body is provided substantially corresponding to the outer edge of the insertion piece. When the roof tile of the roof tile is inserted, when the insertion piece of another roof tile is inserted below the cover piece provided in the cut on the tail side of the roof tile, the inner edge of the insert piece and the outer edge of the cover piece are By facing each other with a smaller gap, these tiles do not derail each other due to these insertion pieces and covering pieces, and in the present invention, the right angle portion remains inside the cut of the prior application, By forming the inner edge without the right-angled portion, it is possible to suppress cracks that are likely to be generated toward the tile roof main body.
[0044]
Since the cross tile according to claim 1 of the present invention is configured as described above, when the four cross tiles are configured as a tile roof of the minimum unit, the second cross tile is arranged on the collar side of the first cross tile. The pier side is overlapped, the head side of the third tier tile is overlapped with the buttocks side of the first tier tile, and the insertion piece of the third tier tile is inserted below the covering piece of the second tier tile, and the second tier tile is inserted. By overlapping the head side of the fourth cross tile on the buttocks side and overlapping the cross section of the fourth cross tile on the collar side of the third cross tile, the area of the overlap formed by the cross rail and the collar differs from the conventional example. do not do.
[0045]
However, according to the present invention, the head-side insertion piece is overlapped simply by being inserted below the covering piece on the buttocks side. The area of the overlap formed by the buttocks can be reduced by half as compared with the conventional example (see FIG. 11).
[0046]
Therefore, it is possible to contribute to an increase in the area that can be utilized in the length direction of the tile.
Therefore, it is possible to reduce the number of cross tiles required for a unit area of a tile roof, and to reduce the number of cross tiles used. In addition, it is possible to suppress physical damage which is likely to occur during conveyance from molding to baking, and deformation due to a thermal operation in a drying step or a baking step.
[0047]
Since the cross tile according to claim 2 of the present invention is configured as described above, in addition to the function and effect of the cross tile as set forth in claim 1, the inner edge forming the boundary between the insertion piece and the main part of the tile is a covering piece. And the inner edge that forms the boundary between the covering piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. When the insertion piece of another crosspiece is inserted below the covering piece, the insertion piece and the coating piece can suppress the derailment of the crosspiece, thereby achieving stability.
[0048]
In addition, since the inner edges of the insertion piece and the covering piece are provided substantially corresponding to the respective outer edges, there is no right-angled portion at the inner edge. You can not.
[0049]
Since the cross tile according to the third aspect of the present invention is configured as described above, in addition to the function and effect of the cross tile according to the first aspect, the outer edge of the insertion piece is closer to the outer edge of the collar side and closer to the collar side. It consists of a butt edge between the head edge and the outer edge of the head, so that the head edge of the insertion piece tends to be near the head edge during transport from molding to baking, and physical damage and drying process Further, deformation due to thermal operation in the firing step can be further suppressed.
[0050]
Since the cross tile according to the fourth aspect of the present invention is configured as described above, in addition to the function and effect of the cross tile according to the first and second aspects, the head side outer edge portion according to the third aspect has Since there is no heading of the insertion piece, it is possible to further suppress physical damage, which is likely to occur during conveyance from molding to baking, and deformation due to thermal operation in the drying step and baking step. .
[0051]
Since the roof tile according to claim 5 of the present invention is configured as described above, the outer edge of the covering piece is closer to the outer edge of the buttocks and the outer edge of the buttocks in addition to the functions and effects achieved by the roof tiles of claims 1 and 3. There is a butt edge between the pier and the pier, and since there is no outer edge on the pier side, the wrap of the coated piece near the pier is likely to occur during transportation from molding to baking, as well as during the drying process. Deformation caused by thermal operation in the firing step can be further suppressed.
[0052]
Since the roof tile according to claim 6 of the present invention is configured as described above, in addition to the functions and effects achieved by the roof tile according to claims 1, 2, 3, and 4, as described in claim 5, the cross roof is provided. Since there is no outer edge, the edge of the coated piece near the cross-section is further suppressed from physical damage that tends to occur during transport from molding to firing, and deformation due to thermal operation in the drying process and firing process. Can be.
[0053]
Since the cross tile according to the seventh aspect of the present invention is configured as described above, in addition to the function and effect of the cross tile according to the first aspect, there is no outer edge portion on the cross side as described in the fifth and sixth aspects. Therefore, it is possible to further suppress physical damage, which is likely to occur during conveyance from forming to baking, and deformation due to thermal operations in the drying step and the baking step, which occur near the edge of the coated piece during molding to baking.
[0054]
Since the cross tile according to claim 8 of the present invention is configured as described above, in addition to the functions and effects achieved by the cross tile according to claims 1 and 2, the cross tile as described in claims 5, 6 and 7 is used. Since there is no outer edge, the edge of the coated piece near the cross-section is further suppressed from physical damage that tends to occur during transport from molding to firing, and deformation due to thermal operation in the drying process and firing process. Can be.
[0055]
The following "Table 1" schematically shows the configuration of the invention according to the above-described claims 1 to 8.
[0056]
[Table 1]

[0057]
The description of the reference numerals indicating the configuration of the invention shown in "Table 1" and the specification of the outer edge of the insertion piece, the outer edge and the inner edge of the coating piece, is as follows.
A Basic elements of a tile with cuts (30, X, Y)
B Insert (28)
C Outer edge of insertion piece (32)
Head side outer edge (32a)
Outer edge of collar side (32b)
Butt edge (32c)
D Coated piece (40)
E Outer edge of coated piece (42)
Butt side outer edge (42a)
Pier side outer edge (42b)
Butt edge (42c)
F tile
G Outer edge of plug (32)
Outer edge of collar side (32b)
Butt edge (32c)
I Outer edge of coated piece (42)
Butt side outer edge (42a)
Butt edge (42c)
H Inner edges of insert and cover pieces (44, 46)
[0058]
BEST MODE FOR CARRYING OUT THE INVENTION
A combination structure of the tiles according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an enlarged plan view of a main part of an insertion piece on the head side and a covering piece on a butt side of a roof tile, schematically showing Embodiment 1 of the invention, FIG. 2 is an enlarged plan view of the main part of Part 2, FIG. FIG. 4 is an enlarged plan view of the essential part of No. 3, FIG. 4 is an enlarged plan view of the essential part of No. 4, FIG. 5 is an enlarged plan view of the essential part of No. 5, FIG. 7 is an enlarged plan view of the essential part of No. 7, FIG. 8 is an enlarged plan view of the essential part of No. 8, FIG. 9 is a front perspective view of the tiling according to the embodiment, FIG. 10 is a rear perspective view thereof, and FIG. FIG. 12 is a plan view showing a combination structure of a tiled roof with four cross tiles, FIG. 12 is an enlarged plan view of a main part near an insertion piece in FIG. 9, FIG. 13 is an enlarged plan view of a main part near a cover piece in FIG. 11 is a vertical cross-sectional view taken along line PP of FIG. 11, FIG. 15 is a vertical cross-sectional view taken along line QQ of FIG. 11, FIG. 17 is a reference view showing the dimensions of the conventional tile in Table 2, FIG. 18 is a surface perspective view of the conventional tile, and FIG. 19 is a plan view showing a combination structure of a tile roof with four conventional tiles. 20 is a vertical sectional view taken along line VV in FIG.
[0059]
Eight embodiments of the present invention will be described with reference to FIGS.
Although not shown in the drawing, the first is a cross tile having at least a head, a tail, a cross, and a collar provided on a main body of the cross tile, and having a cut on the head side and a cut on the rear side.
[0060]
These configurations are common to eight types of embodiments of the present invention described below.
In addition, configurations that do not refer to the following eight embodiments and examples of the invention are common configurations unless otherwise specified, and the descriptions thereof will be cited.
[0061]
A thin insertion piece 28 is provided in the notch on the head side near the back surface of the main body. The outer edge 32a of the insertion piece 28 extends the head edge closer to the collar side in the notch on the head side, and the outer edge portion 32b of the collar side which extends the collar edge closer to the head side is described above. It comprises a butt edge 32c between the head side outer edge 32a and the collar side outer edge 32b.
[0062]
Therefore, the outer edge 32 of the insertion piece 28 of this embodiment is constituted by a butt edge 32c between the head-side outer edge 32a and the collar-side outer edge 32b as compared with the above-mentioned prior invention, There is no intersection.
[0063]
On the other hand, a thin covering piece 40 is provided in the notch on the butt side near the surface of the tile roof main body.
The outer edge 42 of the covering piece 40 has a butt-side outer edge 42a in which the butt edge closer to the pier side is extended in the incision Y on the butt side; It comprises a butting edge 42c between the side outer edge 42a and the beam side outer edge 42b.
Therefore, the outer edge 42 of the covering piece 40 of this embodiment is constituted by the abutting edge portion 42c between the cross-side outer edge portion 42b and the butt-side outer edge portion 32a as compared with the above-mentioned prior invention. , Without intersections (see FIG. 1).
[0064]
In addition to the second embodiment, the second embodiment has the same configuration as the first embodiment, and further has an inner edge 44 that forms a boundary between the insertion piece 28 and the crosspiece main body substantially corresponding to the outer edge 42 of the covering piece 40. And an inner edge 46 forming a boundary between the main body and the crosspiece main body is provided substantially corresponding to the outer edge 32 of the insertion piece 28 (see FIG. 2).
[0065]
The third is a collar-side outer edge portion 32b in which the outer edge 32 of the insertion piece 28 extends the head-side collar edge within the head-side cut, the collar-side outer edge portion 32b and the collar-side head edge portion 32d. And a butted edge 32c between the two.
On the other hand, the outer edge 42 of the covering piece 40 extends the butt side near the butt side in the cut on the butt side, and the outer edge 42b of the pier side, and the outer edge 42a of the butt side closer to the pier side extends the outer edge 42a. And a butting edge 42c between the crosspiece outer edge 42b and the buttocks outer edge 42a (see FIG. 3).
[0066]
Fourth, in addition to having the same configuration as the third configuration, the inner edge 44 forming the boundary between the insertion piece 28 and the crosspiece main body is provided substantially corresponding to the outer edge 42 of the coating piece 40, and the coating piece 40 And an inner edge 46 forming a boundary between the crosspiece main body and the outer edge 32 of the insertion piece 28 (see FIG. 4).
[0067]
The fifth is a collar-side outer edge portion 32b in which the outer edge 32 of the insertion piece 28 extends the head-side collar edge within the head-side cut, the collar-side outer edge portion 32b and the collar-side head edge portion 32d. And a butted edge 32c between the two.
On the other hand, the outer edge 42 of the covering piece 40 extends between the buttocks-side outer edge 42a and the buttocks-side outer edge 42a and the buttocks-side crosspiece 42d in the notch on the buttocks side. (See FIG. 5).
[0068]
No. 6 has the same configuration as the configuration of No. 5 and has an inner edge 44 which forms a boundary between the insertion piece 28 and the main body of the shingle, substantially corresponding to the outer edge 42 of the coating piece 40, and a coating piece 40. And an inner edge 46 that forms the boundary between the crosspiece main body and the outer edge 32 of the insertion piece 28 (see FIG. 6).
[0069]
7 is a head-side outer edge portion 32a in which the outer edge 32 of the insertion piece 28 extends the head edge closer to the collar side in the cut in the head side, and a collar-side outer edge portion 32b in which the collar edge closer to the head side is extended. And a butted edge 32c between the head-side outer edge 32a and the collar-side outer edge 32b.
On the other hand, the outer edge 42 of the covering piece 40 extends between the buttocks-side outer edge 42a and the buttocks-side outer edge 42a and the buttocks-side crosspiece 42d in the notch on the buttocks side. (See FIG. 7).
[0070]
No. 8 has the same configuration as the configuration of the seventh, and in addition to the inner edge 44 forming the boundary between the insertion piece 28 and the crosspiece main body being provided substantially corresponding to the outer edge 42 of the coating piece 40, And an inner edge 46 that forms a boundary between the crosspiece main body and the outer edge 32 of the insertion piece 28 (see FIG. 8).
[0071]
【Example】
Referring to FIGS. 9 and 10, the structure of the cross tile 10 according to the embodiment of the present invention will be described. As is known, a peak 14 and a valley 16 are provided.
The cross tile 10 of this embodiment is an example in which the depth of the valley 16 is provided to be 35 mm or more as shown in the JIS standard.
[0072]
Two protrusions 18 and 19 for returning water are provided on the surface of the buttocks from the collar to the mountain 14.
Then, two dents 20 having an open outer side are provided in a part of the ridge 18 at the tail edge, and a ridge 22 is provided on the surface of the collar for returning water from the tail to the head ( See FIG. 9).
[0073]
Another ridge 23 is provided from the hip to the head so as to be parallel to the ridge 22 on the ridge 16 side of the ridge 22 on the surface of the collar.
The ridges 23 are intended not only for the purpose of returning water, but also for positioning the rim of another shingle 10 to be superimposed on the collar side of the shingle 10 and suppressing the delusion in the width direction ( See FIG. 9).
[0074]
On the other hand, as apparent from FIG. 10, two ridges 24 and 25 for returning water are provided on the back surface of the head from the collar to the crosspiece.
These ridges 24 and 25 are, when the head side of this cross tile 10 is overlapped with the buttocks side of another cross tile 10, between the two ridges 24 and 25, of the another cross tile 10 described above. By arranging the ridges 19 provided on the surface close to the buttocks, it is possible to prevent infiltration of rainwater and to suppress lengthwise delusion.
[0075]
Further, a ridge 26 is provided from the head on the back surface of the crosspiece to the buttocks.
A pair of swords 27, 27 are provided on the back surface on the butt side, and a small protrusion 29 is provided beside the sword 27.
[0076]
Therefore, the features of the cross tile 10 of the present invention will be described below. The cutout X on the substantially square head side is thin and the insertion piece 28 is provided near the back surface of the cross tile main body 30 (FIG. 9). , FIG. 11 and FIG. 12).
Generally, the thickness of the insertion piece 28 is appropriately about one half of the thickness of the tiling main body 30, and the bottom surface of the insertion piece 28 forms the same surface as the back surface of the tiling main body 30. .
[0077]
The outer edge 32 of the insertion piece 28 has a head-side outer edge portion 32a that extends the head edge near the collar edge in the head-side cut X, and a collar-side outer edge portion that extends the collar edge near the head edge. 32b, and an abutting edge 32c between the head-side outer edge 32a and the collar-side outer edge 32b (see FIGS. 9 and 12).
[0078]
That is, the outer edge 32 of the insertion piece 28 exists within the range of the cut X on the head side of the crosspiece 10, but does not exist outside the range of the cut X.
[0079]
The illustrated outer edge 32 is formed by a head-side outer edge 32a, a collar-side outer edge 32b, and a butt edge 32c. The butt edge 32c between the head-side outer edge 32a and the collar-side outer edge 32b draws a straight line. However, the shape is not limited to a straight line, but is substantially symmetrical with the inner edge 38 of the covering piece 34 described later, and can freely draw an arc, a waveform, or an irregular shape within the range of the cut X.
[0080]
On the other hand, a thin covering piece 40 is provided in the substantially square cut Y near the surface of the tile body 30 (see FIGS. 10 and 13).
In general, the thickness of the covering piece 40 is appropriately about one half of the thickness of the tiling main body 30 as in the case of the insertion piece 28, and the surface of the covering piece 40 is flush with the surface of the tiling main body 30. Is formed.
[0081]
Therefore, by inserting the insertion piece 28 below the covering piece 40 as described later, the wall thickness of both is equal to the wall thickness of the crosspiece main body 30, and the back and front surfaces of both 28 and 40 are respectively Since the same surface as the front and back sides of the tiling main body 30 is formed, there is no uncomfortable feeling.
[0082]
And, the outer edge 42 of the covering piece 40 has a buttocks side outer edge portion 42a which extends the buttocks edge near the crossing edge in the buttocks side incision Y, and a beam side outer edge portion 42b which extends the butting edges near the buttocks edge. It comprises a butting edge 42c between the butt side outer edge 42a and the beam side outer edge 42b.
[0083]
That is, this means that the outer edge 42 of the covering piece 40 exists within the range of the cut Y on the buttocks side and does not exist outside the range of the cut Y.
[0084]
The outer edge 42 of the illustrated covering piece 40 is formed by a butt-side outer edge 42a, a beam-side outer edge 42b, and a butt edge 42c, and the butt edge 42c draws a straight line, but is not limited to a straight line. It is free to draw an arc, a waveform or an irregular shape within the range of the cut Y.
[0085]
An inner edge 44 forming a boundary between the insertion piece 28 and the tile body 30 is provided substantially corresponding to an outer edge 42 of the covering piece 40.
The above-described inner edge 44 includes a horizontal inner edge 44a, a vertical inner edge 44b, and a butt inner edge 44c which substantially correspond to the outer edge 42a, the outer edge 42b, and the butt edge 42c of the outer edge 42 of the covering piece 40. (See FIG. 12).
[0086]
The inner edge 46 that forms the boundary between the covering piece 40 and the tile body 30 is provided substantially corresponding to the outer edge 32 of the insertion piece 28.
[0087]
Therefore, the inner edge 46 of the covering piece 40 has a horizontal inner edge 46a, a vertical inner edge 46b substantially corresponding to the head outer edge 32a, the collar outer edge 32a, and the butting outer edge 32c that constitute the outer edge 32 of the insertion piece 28. It comprises a butted inner edge 46c (see FIG. 13).
[0088]
When the insertion piece 28 is inserted below the covering piece 40, the butted inner edge parts 44c and 46c of the inner edges 44 and 46 are fitted to the butted inner edge part 44c of the covering piece 40. 32c abuts, or the butting outer edge 42c of the covering piece 40 abuts the butted inner edge 46c of the insertion piece 28, or these butting outer edges 32c and 42c are attached to the inserting piece 28 and the coating piece 40. The shape does not matter as long as the location condition is satisfied.
[0089]
In order to obtain the head outer edge 32a and the collar outer edge 32b that form the outer edge 32 of the insertion piece 28, the head edge near the collar edge and the collar edge near the head edge are respectively extended in the cut X on the head side. The reason is as follows.
[0090]
Although the inner edge 44 of the insertion piece 28 and the outer edge 42 of the covering piece 40 abut against each other, it cannot be denied that a gap still occurs between the edges 44 and 42.
Therefore, it cannot be denied that rainwater enters the surface of the insertion piece 28 through this gap.
[0091]
In this case, since the insertion piece 28 also serves as a sink for infiltrating rainwater by being positioned below the covering piece 40, it is originally desired that the area be large, If the size is set so as to occupy the entire cut X on the side (an example of a square shape), the insert piece 28 may be damaged in the production process of the tile 10 as described in the prior application.
[0092]
On the other hand, when the head side outer edge portion 32a and the collar side outer edge portion 32b are omitted, the outer edge 32 of the insertion piece 28 directly connects the head edge and the collar edge, that is, the insertion piece 28 has a substantially triangular shape. In this case, however, there is no part of the insertion piece 28 serving as a rainwater sink at the head edge near the collar edge and the butt edge near the pier edge, and especially toward the collar edge. Since there is no portion serving as a saucer for rainwater that infiltrates, there is a risk of reaching the field material N.
[0093]
Next, a description will be given of the combination of the cross tiles 10. Although the combination is generally constituted by a large number of cross tiles 10, it is basically formed by four cross tiles 10 as described below by basically the same means as the conventional example. Is
[0094]
Therefore, at least four cross tiles 10a, 10b, 10c, and 10d are prepared, and the second cross tile 10b is provided on the collar side of the first cross tile 10a as is apparent with reference to FIGS. By overlapping the crosspiece side, the overlapping portion 48 is formed between the crosspiece and the collar.
[0095]
According to the present invention, it is difficult to reduce the area of the overlapping portion 48 (combination of the curved back surface and the collar surface due to the overlap) formed by the crosspiece and the collar because the configuration of the crosspiece 10 is high. The purpose of the present invention is not to increase the effective use area of the shingle 10 but to increase the effective use area of the cross tile 10 by reducing the area of the overlapping portion 50 formed by the head and the buttocks. The width of the portion 48 is the same as the width of the overlapping portion Sm of the conventional tile W.
It should be noted that the present invention does not attempt to increase the area of use of the overlapping portion 48 by the crosspiece and the collar, and keeps in mind that the use of the overlapping portion 48 by the crosspiece and the collar does not change compared to the conventional example. To clarify.
[0096]
Then, the head side of the third tile roof 10c is overlapped on the butt side of the first tile roof 10a, and the insertion piece 28 of the third tile roof 10c is inserted below the covering piece 40 of the second tile roof 10b. The head side of the fourth cross tile 10d is overlapped on the tail side of the second cross tile 10b, and the cross side of the fourth cross tile 10d is overlapped on the collar side of the third cross tile 10c.
[0097]
Therefore, the overlapping portion 50 is formed by the overlap between the head and buttocks of the first and third cross tiles 10a and 10c.
The length of the overlapping portion 50 substantially corresponds to the length of the insertion piece 28 or the covering piece 40 in the length direction.
[0098]
By the way, in the conventional tile W, the head of the third tile Wc faces the head side from the cut Yb on the buttocks side of the second tile Wb, and the cut Xc on the head side of the third tile Wc and the second cut Yc. The notch Yb on the bottom side of the cross tile Wb is fitted, and an overlap portion Sn is formed by the bottom side of the first cross tile Wa and the head side of the third cross tile Wc. The length of the overlap portion Sn is the length of the cut Xc. This corresponds to the length obtained by adding the vertical side Xv and the vertical side Yv of the cut Yb.
[0099]
On the other hand, the length and width of the insertion piece 28 and the covering piece 40 of the cross tile 10 in the embodiment of the present invention are set to the same dimensions as the vertical sides Xv, Yv of the cuts X, Y of the conventional cross tile W, respectively. Then, it is clear that the length of the overlapping portion 50 formed by the head and the buttocks is reduced by half as compared with the conventional tile W. Therefore, the area of the overlapping portion 50 formed by the head and the buttocks is reduced to half. Will decrease.
[0100]
Further, another overlapping portion 50 is formed by the buttocks side of the second roof tile 10b and the head side of the fourth roof tile Wd, and the length of the overlapping portion 50 is also different from that of the first roof tile 10a and the third roof tile Wd. Is formed to be equal to the length of the overlapping portion 50 constituted by the cross tiles 10c.
[0101]
Incidentally, Table 2 shows a comparison between the shape and dimensions of the cross tile W according to the embodiment of the present invention and the conventional cross tile, and the number of roofs per unit area (3.3 square meters).
[0102]
[Table 2]

[0103]
As is clear from Table 2, as a commonly used cross tile, for example, in the case of a conventional tile referred to as a 53A plate according to a dimensional classification, 53 tiles per unit area were required. In the case of the cross tile according to the embodiment of the present invention, it is shown that 46 sheets are sufficient, and the required number can be reduced by 13% or more.
Furthermore, it is also clear that as the size of the tile becomes smaller, the required number of tiles per unit area is further reduced as compared with the conventional example.
[0104]
Further, as described above, by combining the four cross tiles 10a, 10b, 10c, and 10d, the infiltration path 52 between the insertion piece 28 of the third cross tile 10c and the covering piece 40 of the second cross tile 10b. Are formed in steps (see FIG. 14).
[0105]
The infiltration path 52 continues from the first vertical path 54 and the first vertical path 54 from the surfaces of the second and third roof tiles 10b and 10c to the surface of the insertion piece 28 of the third roof tile 10c. A horizontal path 56 is provided to the eaves side and substantially perpendicular to the vertical path 52, and a second vertical path 58 that follows the horizontal path 56 and is perpendicular to the first crosspiece 10 a. (See FIG. 14).
[0106]
Therefore, the rainwater that has entered the first vertical path 54 due to a strong wind or the like is guided to the horizontal path 56 and the second vertical path 58, and the momentum thereof is significantly reduced before the rainwater reaches the first crosspiece 10a side. Therefore, care is taken to prevent rainwater from flowing backward and infiltrating into the field material N side.
[0107]
Further, the insertion piece 28 is provided with a collar side outer edge 32b, and the covering piece 40 is provided with a crosspiece outer edge 42a. A portion serving as a two-layer tray for receiving rainwater is formed in X and Y.
[0108]
Therefore, the rainwater that has entered the cuts X and Y is first surely guided to the valley side of the first crosspiece 10 a by the covering piece 40, and the rainwater is supposed to flow downward from the outer edge 42 side of the covering piece 40 to the covering piece 40. Even if it penetrates, since the insertion piece 28 exists below the covering piece 40 and the collar side outer edge portion 32b is provided, it does not penetrate the collar side beyond the cuts X and Y, and Is reliably guided to the valley side of the roof tile 10a, so that the field material N side is not damaged.
[0109]
This means that rainwater reaching the contact portion between the vertical side Yv of the cut Yb of the second tile Tile Wb and the collar edge on the head side of the third tile Tile Wc in the conventional tile Tile W is the same as the vertical Yb and the collar edge. This is the only solution to the problem of entering the contact portion, reaching the base material N through the collar edge of the first roof tile Wa, and damaging the base material N side.
[0110]
In the case where the cross tile 10 according to the present invention is manufactured from clay, in addition to the solution of the above-described problem, there is also an advantage in the next manufacturing process.
[0111]
It is generally known that the production of clay tiles is carried out by baking the tile body after drying with the buttocks standing on the shelves of a so-called baking cart with the bottom as the bottom.
In this case, the crosspiece is formed to have a substantially arc-shaped cross section from the configuration of the valley and the crosspiece, and it is generally possible to stand up in tandem with the provision of the rear sword on the rear side.
[0112]
However, even if it is possible to stand up, a space is formed by the cut on the buttocks side.
Therefore, although the instability still remains to stand on the shelf of the baking cart with the bottom side of the cut tile having the cut as the bottom surface, the fact is that the baking cart is fired without being eliminated.
For this reason, there is a possibility that the crosspiece may fall down due to the swinging of the firing cart during running, which is a problem in production technology.
[0113]
On the other hand, according to the present invention, in order to be able to solve the above-mentioned problem, as described above, the covering piece 40 is provided in the cut Y on the tail side of the cross tile 10. Since the buttocks side outer edge portion 42a, which is a part of the outer edge 42 of the covering piece 40, is formed by extending the buttocks edge toward the crosspiece edge, the void space due to the conventional cutting of the crosspiece is reduced.
[0114]
Therefore, in the conventional example, when the erect side is set as the bottom surface due to the presence of the void, the area of the buttocks is smaller than the cross section of the crosspiece in the width direction, and the unstable piece is formed. By providing 40, the space is almost filled, so that the area of the buttocks as an upright surface is increased and unstable elements are reduced, so that there is an advantage of solving the problem of overturning which may occur in the past. Also have.
[Brief description of the drawings]
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged plan view of a main part of an insertion piece on a head side and a covering piece on a butt side of a roof tile, schematically showing Embodiment 1 of the present invention.
FIG. 2 is an enlarged plan view of part 2 of the same.
FIG. 3 is an enlarged plan view of part 3 of the same.
FIG. 4 is an enlarged plan view of part 4 of FIG.
FIG. 5 is an enlarged plan view of the essential part of No. 5;
FIG. 6 is an enlarged plan view of part 6 of FIG.
FIG. 7 is an enlarged plan view of part 7 of FIG.
FIG. 8 is an enlarged plan view of the essential part of No. 8;
FIG. 9 is a front perspective view of the cross tile according to the embodiment.
FIG. 10 is a rear perspective view of FIG. 9;
FIG. 11 is a plan view showing a combination structure of a tiled roof with four tiles.
FIG. 12 is an enlarged plan view of a main part near the insertion piece of FIG. 9;
FIG. 13 is an enlarged plan view of a main part near a covering piece of FIG. 10;
FIG. 14 is a longitudinal sectional view taken along line PP of FIG. 11;
FIG. 15 is a longitudinal sectional view taken along line QQ in FIG. 11;
FIG. 16 is a reference diagram showing each dimension of the crosspiece of the embodiment in Table 2.
FIG. 17 is a reference diagram showing each dimension of the conventional tile in Table 2.
FIG. 18 is a front perspective view of a conventional tile.
FIG. 19 is a plan view showing a combination structure of a tile roof with four cross tiles according to a conventional example.
FIG. 20 is a vertical sectional view taken along line VV in FIG. 19;
[Explanation of symbols]
28 Insert
30 main body
32 Outer edge of insertion piece
32a Head outer edge of insertion piece
32b Outer edge on the collar side of the insertion piece
32c Butt edge of insertion piece
32d Head edge of insertion piece
40 coated pieces
42 Outer edge of coated piece
42a Outer edge of covering piece
42b Outer edge of pier side of coated piece
42c Butt edge of coated piece
42d Edge of covering piece
44 Inner edge that forms the boundary between the insert and the roof tile body
46 Inner edge that forms the boundary between the covering piece and the roof tile body

Claims (8)

A head tile, a tail, a head and a collar are provided on the main part of the tile, and a tile having a cut on the head side and a cut on the tail side,
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece extends the head edge closer to the collar side in the notch on the head side, the outer edge portion of the collar side extending the collar edge closer to the head side, and the above-described head outer edge Part and the butting edge between the collar side outer edge,
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is a butt side outer edge portion in which the outer edge of the butt side is extended in the incision of the butt side, the outer edge portion of the butt side in which the outer edge of the butt side is extended, and the aforementioned outer edge of the pier side And a butting edge between the outer edge of the buttocks. An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. The crosspiece according to claim 1, comprising: A head tile, a tail, a head and a collar are provided on the main part of the tile, and a tile having a cut on the head side and a cut on the tail side,
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece is formed by extending the collar side closer to the head side in the cut on the head side, and the butting edge between the collar side outer edge and the head edge closer to the collar side. Become
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is a butt side outer edge portion in which the outer edge of the butt side is extended in the incision of the butt side, the outer edge portion of the butt side in which the outer edge of the butt side is extended, and the aforementioned outer edge of the pier side And a butting edge between the outer edge of the buttocks. An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. The crosspiece according to claim 3, wherein A head tile, a tail, a head and a collar are provided on the main part of the tile, and a tile having a cut on the head side and a cut on the tail side,
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece is formed by extending the collar side closer to the head side in the cut on the head side, and the butting edge between the collar side outer edge and the head edge closer to the collar side. Become
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is composed of a buttocks side outer edge portion in which the buttocks side is extended in the buttocks side cut, and a butted edge between the buttocks side outer edge and the buttocks side bar edge. A roof tile characterized by the following. An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. The roof tile according to claim 5, wherein A head tile, a tail, a head and a collar are provided on the main part of the tile, and a tile having a cut on the head side and a cut on the tail side,
A thin insertion piece is provided in the notch on the head side near the back of the roof tile body,
The outer edge of the insertion piece extends the head edge closer to the collar side in the notch on the head side, the outer edge portion of the collar side extending the collar edge closer to the head side, and the above-described head outer edge Part and the butting edge between the collar side outer edge,
On the other hand, a thin covering piece is provided in the notch on the buttocks side near the surface of the tile roof body,
The outer edge of the covering piece is composed of a buttocks side outer edge portion in which the buttocks side is extended in the buttocks side cut, and a butted edge between the buttocks side outer edge and the buttocks side bar edge. A roof tile characterized by the above. An inner edge forming a boundary between the insertion piece and the tile roof main body is provided substantially corresponding to an outer edge of the covering piece, and an inner edge forming a boundary between the coating piece and the tile roof body is provided substantially corresponding to the outer edge of the insertion piece. 8. The roof tile according to claim 7, comprising:

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