JP4101969B2

JP4101969B2 - Ceramic-based moldings

Info

Publication number: JP4101969B2
Application number: JP08641599A
Authority: JP
Inventors: 孝一遠藤
Original assignee: A&A Material Corp
Current assignee: A&A Material Corp
Priority date: 1999-03-29
Filing date: 1999-03-29
Publication date: 2008-06-18
Anticipated expiration: 2019-03-29
Also published as: JP2000282626A

Description

【０００１】
【発明の属する技術分野】
本発明は、複数の意匠部分を有する意匠部と、この意匠部の周りに形成された接合係止部とからなるほぼ板状の窯業系成形体であって、複数枚をほぼ垂直に積重可能である窯業系成形体に関するものである。
【０００２】
【従来の技術】
窯業系成形体は、例えば、建物の屋根材、壁材や床材として用いられる。図１３に、屋根の平坦な下地材すなわち野地板に並べられた従来の屋根材を示す。屋根材１ａ，１ｂは、それぞれ、相対的に一段高い上段部２とその下方に位置する下段部３とからなる意匠部と接合係止部とから構成されている。上段部２と下段部３は屋根材の縦方向に並んでいる。上段部２及び下段部３には、瓦の意匠が施されている複数の瓦部分を有している。屋根材１ａ，１ｂは下地材である野地板４に並べられた際、下方の屋根材１ａの接合係止部である上端部５は、上方の屋根材１ｂの接合係止部である下端部６に覆われる。屋根材１ａ，１ｂの上段部２及び下段部３の各裏面には、平坦な野地板４と当接する当接部７ａ，７ｂが備えられている。このようにそれぞれ２段に瓦の意匠を施された複数の瓦部分を有する屋根材１ａ，１ｂを使用して建物の屋根を構成すると、野地板４上に実際の瓦を一枚一枚並べる場合と比べて、敷設作業の効率化を図ることが可能である。
【０００３】
【発明が解決しようとする課題】
しかしながら、上述した従来の屋根材１ａ，１ｂにあっては、上段部２の当接部７ａ及び下段部３の当接部７ｂにおいてのみ平坦な野地板４と当接し、当接部７ａと当接部７ｂとの間においては、屋根材１ａ，１ｂの裏面と野地板４との間に、幅方向に延びる隙間８が形成される。このため、隙間８が形成される部分、すなわち、裏面が野地板４に接していない屋根材１ａ，１ｂの表面側に突出した意匠部分である瓦部分に荷重が作用すると、この屋根材１ａ，１ｂは下方に撓んだり、場合によっては破損する恐れもあった。
したがって、従来の屋根材１ａ，１ｂでは、強度の面から、厚さを薄くすることや当接部７ａと当接部７ｂの間隔すなわち屋根材１ａ、１ｂを縦方向に広くするような意匠すなわち形状を選択することは難しく、屋根材の意匠の自由度が制限されるという問題があった。
【０００４】
また、かかる問題は、窯業系成形体を屋根材として使用した場合に生じるだけでなく、例えば、壁材として使用した場合にも、その壁に人や物がもたれかかったりして荷重がかかるときには、同様に生じる恐れがあった。
【０００５】
従って、本発明は、上述の問題を解決するためになされたものであり、従来のよりも破損しにくく、強度面から意匠すなわち形状の自由度を制限されることが少ない窯業系成形体を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上述の目的を達成するために、本発明の窯業系成形体は、表面側に突出し、この突出部分に対応する裏面側で凹む複数の意匠部分が形成された意匠部と、この意匠部の周りに形成されている接合係止部とからなるほぼ板状の窯業系成形体であって、表面の各意匠部分の間には、縦方向に延び、断面がＶ字状をなす溝が形成され、その表面の溝と対応する裏面の位置には、積重の際に、下側の他の窯業系成形体の表面に形成されている対応する溝にそれぞれ嵌合するように、縦方向に延びるリブが離隔して形成されている窯業系成形体において、各リブは、その先端が同一平面上に揃うように形成され、施工されて上端部の接合係止部が下地材と接する場合には、各リブの先端全体が平坦な下地材に当接するものである。なお、複数のリブは、相互に幅方向に離隔して縦方向に延びているのが好適である。また、上記窯業系成形体は、屋根材、壁材又は床材等の建材として用いることができる。
【０００７】
【発明の実施の形態】
以下、この発明の実施の形態を、窯業系成形体を屋根材として用いた場合について、図１〜図１２に基づいて説明する。尚、図４の（ａ）及び（ｂ）は、それぞれ図１の屋根材のＡ−Ａ線及びＢ−Ｂ線による断面図であり、図６の（ａ）及び（ｂ）は、それぞれ図１の屋根材のＣ−Ｃ線及びＤ−Ｄ線による断面図である。
【０００８】
図１に示されるように、屋根材１１は、ほぼ板状の窯業系成形体であって、表面側に突出する突出部分に対応して裏面側で凹んでいる瓦の意匠が施されている複数の瓦部分１４からなる意匠部１２と、この意匠部１２の周りに形成され、施工される際に隣接する屋根材を載せるための接合係止部１３とを有する。意匠部１２に形成された複数の瓦部分１４は、縦方向に２行且つ幅方向に５列に並んで合計１０個形成されている。また、意匠部１２には、各瓦部分１４の間を縦方向に延びる８本の溝１５ａ〜１５ｈが形成されている。隣接する瓦部分１４の間に形成される各溝１５ａ〜１５ｈは、頂点が施工時上方を指向するようなほぼ三角形状の正面を有する。一方、図２に示されるように、屋根材１１の裏面には、２行の瓦部分に亘って縦方向に連続して延びる４本のリブ１６ａ〜１６ｄが形成されている。これらのリブ１６ａ、１６ｂ、１６ｃ及び１６ｄは、それぞれ、縦方向に並んだ一対の溝１５ａ及び１５ｅに対応する反対側すなわち裏面側、一対の溝１５ｂ及び１５ｆに対応する反対側すなわち裏面側、一対の溝１５ｃ及び１５ｇに対応する反対側すなわち裏面側並びに一対の溝１５ｄ及び１５ｈに対応する反対側すなわち裏面側にそれぞれ位置する部分で延びており、隣接するリブ同士は、幅方向にほぼ等間隔に離隔している。
【０００９】
そして、図１及び図２に示されるように、屋根材１１の幅方向の両縁部には、屋根材表面側に、溝１５ａ〜１５ｈの半分に相当する溝半部１５ｒ，１５ｓ，１５ｔ及び１５ｕが形成されており、屋根材１１の裏面側には、リブ１６ａ〜１６ｄの半分に相当するリブ半部１６ｒ及び１６ｓが形成されている。
【００１０】
図３〜図６に示されるように、意匠部１２の表面側では、各瓦部分１４が表面側に突出し、逆に、意匠部１２の裏面側では各瓦部分１４が凹んでいる。また、各瓦部分１４は、施工時の屋根下先（軒先）側ほど突出量が大きくなるように傾斜している。また、図６に示されているように、特に、意匠部１２表面に形成された各溝１５ａ〜１５ｈは、その延びる方向と直交する断面がＶ字状に形成されている。一方、図４（ｂ）及び図６に示されているように、意匠部１２の裏面に形成されたリブ１６ａ〜１６ｄは、それぞれ、その先端面が平面に形成されて、これらリブ１６ａ〜１６ｄの先端面は、すべて同一平面上に揃っている。また、図７の拡大図に示されるように、溝半部１５ｒ〜１５ｕ及びリブ半部１６ｒ及び１６ｓは、施工時にそれぞれ隣接する屋根材に形成された同様な溝半部及びリブ半部を接合することによって、溝１５ａ〜１５ｈ及びリブ１６ａ〜１６ｄとほぼ同様な完全な一つの溝及びリブをそれぞれ形成する。
【００１１】
次に、以上のように構成された複数の屋根材１１は、保管時もしくは運搬時等に、図８に示されるように、相対的に、上側にある屋根材１１の裏面と下側にある屋根材１１の表面を対向するようにしてほぼ垂直に積み重ねられる。このように積み重ねられると、主に、図９の（ａ）及び（ｂ）に最も良く示されているように、下側にある屋根材１１の溝１５ａ〜１５ｈには、上側にある屋根材１１の対応するリブ１６ａ〜１６ｄが嵌合する。すなわち、上側にある屋根材１１は、下側にある屋根材の各瓦部分１４と当接することなく、下側にある屋根材１１の溝１５ａ〜１５ｈにより支持される。
【００１２】
したがって、本発明の実施の形態である屋根材１１においては、積み重ねられた際に、各屋根材１１の瓦部分１４が対向する屋根材と当接せず、溝１５ａ〜１５ｈおよびリブ１６ａ〜１６ｄが嵌合すると共に、下側の屋根材１１の瓦部分１４が上側の屋根材１１の瓦部分１４の裏面の凹んでいる部分に入り込むので、屋根材１１が相互に幅方向および縦方向に位置ズレすることがない。
【００１３】
次に、このような屋根材１１が施工される状態について説明する。図１０及び図１１に示されるように、隣接する屋根材１１，１１は、相対的に下方にある屋根材の接合係止部１３上に上方にある屋根材の下端部１７を載せるようにして、建物屋根の野地板（または下地材）１８に施工される。このとき、屋根材１１の裏面に形成された複数のリブ１６ａ〜１６ｄの先端は同一平面上に揃っているため、各屋根材１１は、複数のリブ１６ａ〜１６ｄの先端全体で下地材すなわち野地板１８に支持される。従来の屋根材では、図１３の縦断面に示されるように、瓦部分を構成する上段部２および下段部３の凹んだ裏面と平坦な野地板４の上面との間に隙間８が形成され、施工後に受ける荷重で野地板１８に接近する方向への撓みが生じ、その撓みが限界を超えると破損してしまうが、本発明の屋根材では図１０および図１１に示されるように、屋根材１１の裏面と下地材すなわち野地板１８の上面との間には、横方向に離隔して複数のリブが形成されているので、従来のように、隙間が幅方向に延びることはなく、屋根材１１上方から荷重が作用しても、屋根材１１が撓みにくく、すなわち破損しにくくなっている。また、従来の屋根材で各段部すなわち各瓦部分の縦方向寸法を長くしようとすると、野地板の上面と瓦部分の裏面との間の横方向に長い隙間が縦方向にも長くなり、耐荷重性能が低下するため、瓦部分の形状設計に限界が生じていたが、本発明の窯業系成形体の形状ではその隙間が横方向で狭く荷重性能の低下がないために形状設計の自由度がある。
【００１４】
また、以下の表１に、本実施の形態の屋根材に関する耐荷重試験の結果を示す。試料は、本実施の形態の効果を説明できる成形体の最小単位、すなわち、両側にリブ部を備えた１つの瓦部分を切断加工して作成した。この材質及び形状が同じである試料を、従来型の形態では施工状態を想定し、瓦部分の両側のリブ部先端と下地材との間に１ｃｍの隙間が生じるように、支持体に支持させて上から集中荷重を与えた。本実施の形態では平坦な下地材にリブ部先端が全面接するようにセットし、上から集中荷重を与えた。この試験結果から、本実施の形態における屋根材は、複数のリブの先端面が同一平面上に揃っていない従来型の屋根材に比べ、約３倍の荷重に耐えられる結果が得られている。このように、本実施の形態の屋根材は従来のものに比べて十分な強度を備えており、強度面から屋根材の形状についての自由度が制限されることは少なく、屋根材の長さや厚さ等の設計の選択幅が広がる。また、複数のリブ１６ａ〜１６ｄは屋根材縦方向に延びているため、意匠部１２の各瓦部分１４の縦方向の寸法を従来よりも大きく採ることが可能である。なお、表１中の最小断面積とは、両側のリブ部を含む瓦部分の断面積が最少の部分の断面積である。
【００１５】
【表１】

【００１６】
以上の説明から理解できるように、本発明は、上述した実施の形態に限定されるものではなく、以下のように適宜改変することも可能である。すなわち、図１２には、本発明の別の実施の形態に係る屋根材の平面図が示される。屋根材１９は、大きさの異なる大小の瓦部分２１および２２を有する意匠部２５と、意匠部２５の周りに形成された接合係止部２０とからなる。幅方向に隣接する瓦部分２１と瓦部分２２の間には、それぞれ縦方向に延びる溝２３ａ〜２３ｆが形成されている。また、意匠部２５の裏面には、表面の各溝２３ａ〜２３に対応する位置にリブが形成されている。各リブは、それぞれ、その先端が平面に形成されている。また、屋根材１９の幅方向の両縁部には、表面に前述した溝半部１５ｒ，１５ｓ，１５ｔ及び１５ｕに相当する溝半部２３ｒ，２３ｓ，２３ｔ及び２３ｕが形成されており、裏面にリブ半部が形成されている。
【００１７】
また、上段部に形成された溝２３ａ〜２３ｃと、下段部に形成された溝２３ｄ〜２３ｆとは、溝２３ｂと溝２３ｅのように、縦方向に同一線上に位置する構成であり、溝２３ａと溝２３ｄや、溝２３ｃと溝２３ｆのように相互に幅方向にズレた位置にあってもよい。
【００１８】
このような屋根材１９を、平坦な下地材すなわち野地板１８上に施工しても、屋根材１１の場合と同様に、リブ先端は野地板１８に全て当接し、施工された屋根材１９が野地板１８によって平面的に支持され、屋根材１１が撓みにくく、即ち破損しにくくなっている。また、前述したように、従来の屋根材では、耐荷重性能が低下するため瓦部分の縦方向寸法の長さに設計限界があったが、リブの先端が断続的である本実施の形態の屋根材１９であっても、間隔に応じで必要なリブを設計することで、屋根材１１の場合と同様に、形状設計の自由度がある。
【００１９】
また、屋根材は一般にプレス成形により製造されるが、プレス成形工程では製品の厚みができるだけ均一である方が望ましい。ここで、従来の形状においては軽量化を実現するために、意匠部の厚みは耐集中荷重を当然考慮しながら可能な限り薄くしてきたが、成形体を大判化するためには、製品として必要である保管時の積重性および施工後の耐荷重性等の品質を得るために、リブ部での補強効果を期待してリブ部の厚みは意匠部の厚みの２倍から４倍で設計することがあった。こうすることで、製品の厚みが異なる（すなわち、厚み差のある）部位が成形体内に混在することになるため、プレス成形では、厚い部位が薄い部分に比べ、圧縮不良を生じ、充填不良が発生する問題があった。
【００２０】
しかし、本実施の形態に係る屋根材１１ならば、平坦な野地板に対しリブ部の先端全体が当接することになり、荷重に対して意匠部の撓みが生じ難い。したがって、リブ部は意匠部と同じ厚みにすることも可能であり、成形体の厚みがほぼ均一になることでプレスでの成形性及び製品の強度が向上する。
【００２１】
【発明の効果】
以上説明したように、本発明によれば、複数のリブの先端が同一平面上に揃っており、施工後、窯業系成形体は複数のリブの先端全体で野地板に支持されるため、荷重に対して撓んだり破損したりしにくく、強度面から意匠の自由度が制限されることが少ない。よって、軽量化、成形性、および垂直に積重可能なことによる保管性や運搬性等を同時にすべて満足できる窯業系成形体を提供することができる。
【００２２】
また、複数のリブが相互に幅方向に離隔して縦方向に延びているため、窯業系成形体と野地板との間に、幅方向に延びる隙間が生じることがなくそのため撓み破損の恐れが少ないので、窯業系成形体の縦方向の寸法を大きく採ることが可能となり、窯業系成形体の軽量化かつ大判化が実現できる。
【図面の簡単な説明】
【図１】本発明の実施の形態にかかる屋根材の平面図である。
【図２】本発明の実施の形態にかかる屋根材の底面図である。
【図３】図１の屋根材を矢印ＩＩＩから見た場合の図である。
【図４】（ａ）及び（ｂ）図は、それぞれ図１のＡ−Ａ線及びＢ−Ｂ線による断面図である。
【図５】図１の屋根材を矢印Ｖから見た場合の図である。
【図６】（ａ）及び（ｂ）図は、それぞれ図１のＣ−Ｃ線及びＤ−Ｄ線による断面図である。
【図７】図６の（ｂ）図のＶＩＩ部の拡大図であって、隣接する屋根材が接合された状態を説明する図である。
【図８】本発明の実施の形態にかかる屋根材２枚を表面および裏面が対向するように垂直に重ね合わせた状態を示す斜視図である。
【図９】（ａ）及び（ｂ）図は、それぞれ、図８に示される積重された屋根材に関し、図４の（ａ）及び（ｂ）図と同態様の断面図である。
【図１０】本発明の実施の形態にかかる屋根材の施工時の平面図である。
【図１１】図１０のＸＩ−ＸＩ線による断面図である。
【図１２】本発明の改変された実施の形態にかかる屋根材の平面図である。
【図１３】従来の屋根材の施工時縦断面を示す図である。
【符号の説明】
１１，１９屋根材
１２，２５意匠部
１３，２０接合係止部
１５ａ〜１５ｈ，２３ａ〜２３ｆ溝
１６ａ〜１６ｄリブ[0001]
BACKGROUND OF THE INVENTION
The present invention is a substantially plate-shaped ceramics-type molded body composed of a design part having a plurality of design parts and a joint locking part formed around the design part, and the plurality of sheets are stacked substantially vertically. The present invention relates to a ceramic-type molded body that is possible.
[0002]
[Prior art]
Ceramic-based molded bodies are used, for example , as building roofing materials , wall materials, and flooring materials . FIG. 13 shows a conventional roof material arranged on a flat base material of a roof, that is, a field plate. Roofing 1a, 1b are each composed of a relatively one step higher upper portion 2 and the design part consisting of lower portion 3 which located below the joint locking portion. The upper step 2 and the lower step 3 are arranged in the longitudinal direction of the roofing material. The upper stage portion 2 and the lower stage portion 3 have a plurality of roof tile portions to which a roof tile design is applied. Roofing 1a, when 1b is arranged in the sheathing roof board 4 is a base member, an upper end portion 5 is a joint engaging portion of the lower roof member 1a, a joint engaging portion of the upper roof member 1b lower end 6 covered. Roofing 1a, each back surface of the upper portion 2 and lower portion 3 1b, the contact portion 7a abutting a flat sheathing roof board 4, Ru 7b is provided Empire. Roofing material 1a having a plurality of tile portion that has been subjected to design the tile to the respective two stages as this, when using a 1b constituting the roof of a building, one by one the actual tile on sheathing roof board 4 as compared with the case of arranging, Ru der possible to improve the efficiency of laying operation.
[0003]
[Problems to be solved by the invention]
However, the conventional roofing material 1a as described above, in the 1b are in contact only with the flat sheathing roof board 4 at the contact portion 7a and the abutment portion 7b of the lower portion 3 of the upper part 2, the contact portions 7a and in between the contact part 7b, roofing 1a, between the back surface and the sheathing roof board 4 = 1b, the gap 8 is formed extending in the width direction. Therefore, partial clearance 8 Ru is formed, i.e., when the roofing material 1a which is the back surface not in contact with the sheathing roof board 4, the load on the tiles moiety is a design portion protruding surface side of the 1b acts, the roofing material 1a , 1b may be bent downward or may be damaged in some cases.
Therefore, the conventional roof materials 1a, in 1b, in terms of strength, a widely be so that spacing or roofing material 1a of reducing the thickness and the contact portion 7a and the contact portion 7b, the 1b longitudinally design in other words it is difficult to select a shape, there is a problem that the degree of freedom of the design of the roofing material is limited.
[0004]
In addition, such a problem occurs not only when the ceramic-based molded body is used as a roofing material, but also when it is used as a wall material, for example, when a person or object leans against the wall and a load is applied. , it was Tsu danger that the same occurs.
[0005]
Accordingly, the present invention has been made to solve the above problems, conventionally hardly broken than to provide the design i.e. ceramic-base molded article is it is less restrictive of freedom of shape from the intensity surface The purpose is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the ceramic molded body of the present invention has a design part in which a plurality of design parts projecting on the front surface side and recessed on the back surface side corresponding to the projecting part are formed, and around the design part almost a ceramic base molded article of plate-like made of a cemented locking portion formed on, between the design portion of the surface, extending in the longitudinal direction, a groove cross-section form a V-shape is formed In the position of the back surface corresponding to the groove on the surface, in the vertical direction so as to fit in the corresponding groove formed on the surface of the other ceramic-based molded body below at the time of stacking in ceramic-based molded ribs are spaced apart to extend, each rib, the tip of its is formed on the same plane on the two assortment Migihitsuji, joint locking portion of the upper portion is construction in contact with the base material case, in which the entire tip of each rib abuts the flat base material. The plurality of ribs are preferably spaced apart from each other in the width direction and extending in the vertical direction. Moreover, the said ceramics type molded object can be used as building materials, such as a roofing material, a wall material, or a flooring.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention, the case of using the ceramic base molded article as roofing material, will be described based on the FIGS. 1-12. 4A and 4B are cross-sectional views of the roofing material of FIG. 1 taken along the lines AA and BB, respectively, and FIGS. 6A and 6B are diagrams respectively. It is sectional drawing by CC line and DD line of 1 roofing material .
[0008]
As shown in FIG. 1, the roofing material 11 is a substantially plate-shaped ceramics molded body , and is provided with a tile design that is recessed on the back surface side corresponding to the protruding portion protruding on the front surface side . having a design part 12 composed of a plurality of tiles portions 14, are formed around the

design portion

12, and a joint locking portion 13 for placing the roofing material adjacent when that will be construction. A plurality of roof tile portions 14 formed in the design portion 12 are formed in a total of ten in two rows in the vertical direction and in five columns in the width direction. Further, the design portion 12, eight grooves 15a~15h that Ru extending between each tile portion 14 in the vertical direction is formed. Each groove 15a~15h that are formed between adjacent tiles portion 14 has a substantially triangular front as vertices oriented during construction upwards. On the other hand, as shown in FIG. 2, four ribs 16 a to 16 d are formed on the back surface of the roofing material 11 so as to extend continuously in the vertical direction over two rows of tile portions . These

ribs

16a, 16b, 16c and 16d, respectively, opposite side, that is the back side corresponding to the pair of

grooves

15a and 15e aligned in the vertical direction, the opposite side, that is the back side corresponding to the pair of

grooves

15b and 15f, a pair extends on the opposite side or opposite side, i.e. the portion located respectively on the back side corresponding to the back surface side and a pair of

grooves

15d and 15h corresponding to the

groove

15c and 15g of the rib adjacent to the substantially equal intervals in the width direction Are separated from each other.
[0009]
And as FIG.1 and FIG.2 shows, the groove | channel

half parts

15r, 15s, and 15t equivalent to the half of groove | channels 15a-15h are formed in the both edges of the width direction of the roof material 11 on the roof material surface side. 15u is formed, and on the back surface side of the roofing material 11, rib

half portions

16r and 16s corresponding to half of the ribs 16a to 16d are formed.
[0010]
As shown in FIGS. 3-6, the surface side of the design portion 12, the tiles portions 14 protrude on the surface side, on the contrary, in the back surface side of the design portion 12 is recessed is Kakukawara portion 14. Moreover, each tile part 14 inclines so that the amount of protrusions may become large toward the roof lower end (eave edge) side at the time of construction. Further, as shown in FIG. 6, in particular, the grooves 15a~15h formed in the design portion 12 surface, cross section perpendicular to the extending building direction is formed in a V-shape. On the other hand, as shown in FIG. 4 (b) and FIG. 6, the ribs 16a~16d formed on the back surface of the

design portion

12, respectively, its distal end face is formed in a plane, these ribs 16a~16d The tip surfaces of all are on the same plane. Also, as shown in the enlarged view of FIG. 7, the groove halves 15r~15u and

rib halves

16r and 16s are tangent similar groove halves and the rib halves which are formed in the adjacent roofing material respectively during construction By combining, a complete groove and rib substantially similar to the grooves 15a to 15h and the ribs 16a to 16d are formed.
[0011]
Then, a plurality of roofing material 11 constructed as described above, the storage time or transportation or the like, as shown in FIG. 8, relative to the back and bottom side of the roofing material 11 on the upper side The roof materials 11 are stacked almost vertically so that the surfaces of the roof materials 11 face each other. When stacked in this manner, mainly as shown best in FIGS. 9 (a) and 9 (b), the grooves 15a-15h of the roof material 11 on the lower side are roof materials on the upper side. 11 corresponding ribs 16a to 16d are fitted . That is, the roof material 11 on the upper side is supported by the grooves 15a to 15h of the roof material 11 on the lower side without coming into contact with the tile portions 14 of the roof material on the lower side.
[0012]
Therefore, in the roofing material 11 according to the embodiment of the present invention, when stacked, the tile portions 14 of the roofing materials 11 do not come into contact with the facing roofing material, and the grooves 15a to 15h and the ribs 16a to 16d. with but fitted, the lower side of the write enters the

part

tile portion 14 of the roof member 11 is recessed with the rear surface of the tiles portions 14 of the roof member 11 of the upper side Munode, transverse and longitudinal roofing material 11 to each other There is no misalignment in the direction.
[0013]
Next, a description will be given state such roofing material 11 Ru is construction. As shown in FIGS. 10 and 11, the

adjacent roof materials

11 and 11 are arranged such that the lower end portion 17 of the upper roof material is placed on the joint locking portion 13 of the lower roof material. It is constructed on the base plate (or base material) 18 of the building roof. At this time, since the tips of the plurality of ribs 16a to 16d formed on the back surface of the roofing material 11 are aligned on the same plane, each roofing material 11 is a base material, i.e., a field, throughout the tips of the plurality of ribs 16a to 16d. Supported by the main plate 18. In a conventional roof material, as shown in the longitudinal section of FIG. 13, the gap 8 is formed between the upper surface of the upper portion 2 and the recessed of the lower part 3 back surface and a flat sheathing roof board 4 constituting the tile part is, cause deflection in the direction of approaching a load experienced after construction in sheathing 18, as is its deflection is damaged exceeds the limit, the roofing material of the present invention shown in FIGS. 10 and 11 , between the upper surface of the back surface and the base material i.e. the sheathing roof board 18 of the

roof member

11, a plurality of ribs spaced apart in the lateral direction are formed, as in the prior art, a gap is Ru extends in the width direction Even if a load is applied from above the roof material 11, the roof material 11 is not easily bent, that is, is not easily damaged. Further, when the conventional roofing material attempts to lengthen the longitudinal dimension of the step portions i.e. the radical 98 min, a long gap in the transverse direction between the back of the upper surface and the tile part of the sheathing roof board also becomes longer in the longitudinal direction However, because the load bearing performance was reduced, there was a limit in the shape design of the tile part, but in the shape of the ceramic-based molded body of the present invention, the gap was narrow in the lateral direction and the load performance was not lowered . There is freedom.
[0014]
Table 1 below shows the results of a load resistance test for the roofing material of the present embodiment. Samples smallest unit of a molded article can explain the effects of the present embodiment, i.e., to create one tile portion with a rib portion on either side cutting manner. A sample of the same material and shape is supported on a support so that a 1 cm gap is formed between the tip of the rib part on both sides of the roof tile and the base material, assuming the construction state in the conventional type. A concentrated load was applied from above. In this embodiment, the flat base material is set so that the front ends of the rib portions are in contact with each other, and a concentrated load is applied from above. From this test result, the roof material in the present embodiment has a result that can withstand about three times the load compared to a conventional roof material in which the tip surfaces of the plurality of ribs are not aligned on the same plane. . Thus, roofing material of the present embodiment is provided with sufficient strength as compared with the prior art, it is rare that the degree of freedom of the shape of the roofing from the intensity plane is restricted, Ya length of roofing Wide range of design choices such as thickness. Moreover, since several rib 16a-16d is extended in the roof material vertical direction, it is possible to take the dimension of the vertical direction of each tile part 14 of the design part 12 larger than before. In addition, the minimum cross-sectional area in Table 1 is a cross-sectional area of the part where the cross-sectional area of the tile part including the rib parts on both sides is the minimum.
[0015]
[Table 1]

[0016]
As can be understood from the above description , the present invention is not limited to the embodiment described above, and can be appropriately modified as follows. That is, in FIG. 12, a plan view of a roofing material according to another embodiment the present invention is shown. Roofing 19, and the design portion 25 having a

tile part

21 and 22 of different magnitude in size, and a cemented locking portion 20 formed around the design part 25. Grooves 23a to 23f extending in the vertical direction are formed between the tile portion 21 and the tile portion 22 adjacent to each other in the width direction. Further, on the back surface of the design portion 25, ribs are formed at positions corresponding to the grooves 23a to 23 on the front surface . Each rib has a flat tip at its tip. Further, on both edges in the width direction of the roofing material 19,

groove halves

23r, 23s, 23t and 23u corresponding to the

groove halves

15r, 15s, 15t and 15u described above are formed on the surface, and on the back surface. Rib halves are formed.
[0017]
Further, the grooves 23a to 23c formed in the upper step portion and the grooves 23d to 23f formed in the lower step portion are configured to be located on the same line in the vertical direction, like the groove 23b and the groove 23e, and the groove 23a. and or grooves 23d, another may me located near deviated in the width direction as in the groove 23c and the groove 23f.
[0018]
Even if such a roofing material 19 is constructed on a flat base material, that is, the field board 18, as in the case of the roofing material 11, the rib tips are all in contact with the field board 18, and the constructed roofing material 19 is The roof plate 11 is supported in a planar manner by the field board 18 and is difficult to bend, that is, is not easily damaged. Further, as described above, in the conventional roofing, load is heavy performance had design limits the length of the longitudinal dimension of the radical 98 min to decrease, this embodiment the tip of the rib is intermittent Even in the case of the roofing material 19, by designing the necessary ribs according to the interval , there is a degree of freedom in shape design as in the case of the roofing material 11.
[0019]
Although roofing materials generally Ru produced by press molding, it is desirable in press molding process the thickness of the product is as uniform as possible. Here, in order to realize weight reduction in the conventional shape, the thickness of the design part has been made as thin as possible while taking into account the concentrated load resistance, but in order to increase the size of the molded product, In order to obtain the necessary stacking properties during storage and load resistance after construction, the thickness of the rib part is 2 to 4 times the thickness of the design part in anticipation of the reinforcing effect at the rib part. There was a design. In this way, parts with different product thicknesses (that is, with different thicknesses) are mixed in the molded body. Therefore, in press molding, a thick part causes a compression failure and a filling failure occurs compared to a thin part. There was a problem that occurred.
[0020]
However, if roofing 11 according to the present embodiment, Ri Do to the entire front end of the rib portion abuts against a flat sheathing board, the deflection of the design part is less likely to occur against a load. Therefore , it is possible to make the rib part the same thickness as the design part, and the formability in the press and the strength of the product are improved by making the thickness of the molded body substantially uniform.
[0021]
【The invention's effect】
As described above, according to the present invention, since the tip of the plurality of ribs are aligned on the same plane, after construction, ceramic-based molded body that is supported by the sheathing across the tip of the plurality of ribs, the load The degree of freedom of design is rarely limited in terms of strength. Therefore, it is possible to provide a ceramic-based molded body that can satisfy all of the requirements of light weight, moldability, storage property and transportability due to the ability to stack vertically.
[0022]
In addition, since the plurality of ribs are separated from each other in the width direction and extend in the vertical direction, there is no gap extending in the width direction between the ceramic-based molded body and the field board, and therefore there is a risk of bending damage. Since there are few, it becomes possible to take the dimension of the vertical direction of a ceramic-type molded object largely , and the weight reduction and enlargement of a ceramic-type molded object can be implement | achieved.
[Brief description of the drawings]
FIG. 1 is a plan view of a roofing material according to an embodiment of the present invention.
FIG. 2 is a bottom view of the roofing material according to the embodiment of the present invention.
FIG. 3 is a view when the roofing material of FIG. 1 is viewed from an arrow III.
4 (a) and (b) drawing a sectional view taken along line A-A and B-B line of FIG. 1, respectively.
5 is a view when the roofing material of FIG. 1 is viewed from an arrow V. FIG.
6 (a) and (b) drawing is a sectional view taken along line C-C and D-D line of FIG. 1, respectively.
Figure 7 is an enlarged view of a VII portion of (b) of FIG. 6 is a diagram for explaining a state where the adjacent roofing material are joined.
FIG. 8 is a perspective view showing a state in which two roofing materials according to the embodiment of the present invention are vertically overlapped so that the front surface and the back surface face each other.
9 (a) and (b) figure, respectively, it relates to stacked roofing material shown in FIG. 8 is a cross-sectional view of (a) and (b) FIG same embodiment of FIG.
FIG. 10 is a plan view at the time of construction of the roofing material according to the embodiment of the present invention.
11 is a cross-sectional view taken along line XI-XI in FIG.
FIG. 12 is a plan view of a roofing material according to a modified embodiment of the present invention.
FIG. 13 is a view showing a longitudinal section during construction of a conventional roofing material.
[Explanation of symbols]
11, 19

Roof material

12, 25

Design part

13, 20 Joining locking part 15a-15h, 23a-23f Groove 16a-16d Rib

Claims

Projecting surface side, and the design portion in which a plurality of design portions is formed recessed in the back side corresponding to the projecting portion, ceramic-based substantially plate-shaped consisting of a joint locking portion formed around the design part A groove that extends in the vertical direction and has a V-shaped cross section is formed between each design portion on the front surface. In the ceramic-based molded body in which ribs extending in the longitudinal direction are formed so as to be respectively fitted to corresponding grooves formed on the surface of the other lower ceramic-based molded body, ones, the tip of that are formed on the same plane on the two assortment Migihitsuji, joint locking portion of the upper portion is construction is when in contact with the base material, the entire distal end of each rib abuts the flat base sheet ceramic based molded body, characterized in that it.

Ceramic-based molded article according to claim 1 in which the upper Symbol plurality of ribs, characterized in Tei Rukoto extends longitudinally spaced mutually in the width direction.

The ceramics-based molded body according to claim 1 or 2, wherein the ceramics-based molded body is a building material such as a roofing material, a wall material, or a flooring material.