JP4615091B2

JP4615091B2 - Board

Info

Publication number: JP4615091B2
Application number: JP2000141539A
Authority: JP
Inventors: 斉有木; 和弘岩谷; 良二藤本; 嘉一郎村上
Original assignee: Eidai Co Ltd
Current assignee: Eidai Co Ltd
Priority date: 2000-05-15
Filing date: 2000-05-15
Publication date: 2011-01-19
Anticipated expiration: 2020-05-15
Also published as: JP2001323640A

Description

【０００１】
【発明の属する技術分野】
この発明は、床材や壁材等として使用される板材、特に、ワンタッチで接合することのできる板材に関する。
【０００２】
【従来の技術】
例えば、床板等の内装材としては、図９（ａ）に示すように、一方の端面に雄実５２が、相対する他方の端面に雌実５３がそれぞれ形成された基材５１の表面に表面化粧材５４が貼着されたものが一般的に使用されており、このような板材５０は、同図（ｂ）に示すように、一端面に形成された雄実５２と他端面に形成された雌実５３とを相互に嵌合させることによって順次接合していくようになっている。
【０００３】
ところで、このように、基材５１の雄実５２と雌実５３とを単に嵌合させることによって接合していく板材５０では、一旦接合した板材５０同士が容易に離間してしまうので、こういった板材５０を使用する場合は、通常、接着剤や釘等の固定手段を用いて板材５０を下地材等に順次固定していかなければならず、施工が面倒であるといった問題があった。
【０００４】
このため、接着剤や釘等の固定手段を用いることなく、ワンタッチで接合していくことのできる板材が開発されている。図１０に示すように、この種の板材６０は、通常、合板、パーティクルボード、ＭＤＦといった木質材によって形成された基材６１と、この基材６１の表面に貼着される表面化粧材６８とから構成されており、基材６１の一方の端部は、その表面側を一定幅で切除することによって形成された表面側切除部６２を有していると共に、相対する他方の端部は、その裏面側を一定幅で切除することによって形成された裏面側切除部６３を有している。
【０００５】
そして、表面側切除部６２の端面には雌実６４が、裏面側切除部６３を有する一方の端部の先端面には雌実６４に嵌合可能な雄実６５がそれぞれ形成されており、表面側切除部６２の下面には凹部６６が、裏面側切除部６３の上面には凹部６６に嵌合可能な凸部６７がそれぞれ形成されている。
【０００６】
以上のように構成された板材６０は、図１１（ａ）に示すように、床下地材の上に載置された板材６０に対して、接合しようとする板材６０を、裏面側切除部６３を有する一方の端部が下向きになるように傾斜させた状態で、その裏面側切除部６３を、既に敷設されている板材６０の表面側切除部６２に嵌め込んで、雌実６４と雄実６５とを相互に嵌合させると共に、凹部６６と凸部６７とを相互に嵌合させることで簡単に接合することができる。
【０００７】
このようにして板材６０同士が接合された状態では、図１１（ｂ）に示すように、雌実６４と雄実６５とが相互に嵌合することによって厚み方向の位置ずれが阻止されると共に、凹部６６と凸部６７とが相互に嵌合することによって板材６０同士の離間が阻止されるようになっているので、特に、板材６０を接着剤や釘等を用いて床下地材等に固定しなくても確実に敷設することができる。
【０００８】
【発明が解決しようとする課題】
ところで、嵌合方向の異なる２種類の嵌合部位を有する板材６０を接合する場合は、上述したように、一方の板材６０の表面側切除部６２に他方の板材６０の裏面側切除部６３を斜めに嵌め込まなければならないが、この際、図１２に示すように、双方の板材６０における表面化粧材６８の端面同士を相互に接触させた後、同図に矢印で示すように、この接触点αを支点として他方の板材６０を回動させることになる。
【０００９】
従って、板材６０同士を接合する際に、相互に接触している表面化粧材６８の端面部分に力が加わり、これに伴って、表面化粧材６８の端部につぶれ等の破損が生じたり、表面化粧材６８の端部が基材６１から剥離してしまうといった問題がある。
【００１０】
そこで、この発明の課題は、接合部分に嵌合方向の異なる複数の嵌合部位を有する板材において、その表面化粧材の端部に損傷を与えることなく接合することができるようにすることにある。
【００１１】
【課題を解決するための手段及びその効果】
上記の課題を解決するため、請求項１に係る発明は、一方の端部は、その表面側が切除されることによって形成された表面側切除部（１１）を有すると共に、相対する他方の端部は、その裏面側が切除されることによって形成された裏面側切除部（１２）を有しており、前記表面側切除部（１１）の端面（１１ａ）には、雌実（１３）が形成されていると共に、前記表面側切除部（１１）の下面には、凹部または凸部が形成されており、前記裏面側切除部（１２）を有する他方の端部の先端面（１０ｂ）には、前記雌実（１３）が嵌合する雄実（１４）が形成されていると共に、前記裏面側切除部（１２）の上面には、前記凹部または凸部が嵌合する凸部または凹部が形成されている基材を有する板材において、前記基材の表面側には表面化粧材が貼着されており、前記裏面側切除部（１２）を有する他方の端部の先端面における表面側の角部と、一方の端部に形成された前記表面側切除部（１１）の端面における表面側の角部とがそれぞれ面取りされており、前記裏面側切除部（１２）を有する一方の端部の先端面（１０ｂ）と前記表面側切除部（１１）の端面（１１ａ）とが相互に当接した接合状態では、前記雄実（１４）と前記雌実（１３）とが線接触するようになっており、前記表面側切除部（１１）の下面に形成された前記凹部（１５）または凸部における前記表面側切除部（１１）を有する端部の先端面（１０ａ）側の面（１５ａ）と、前記表面側切除部（１１）の下面に形成された前記凹部（１５）または凸部に嵌合している前記裏面側切除部（１２）の上面に形成された前記凸部（１６）または凹部における前記裏面側切除部（１２）の端面（１２ａ）側の面（１６ａ）との間に隙間が形成されていることを特徴とする板材を提供するものである。
【００１２】
以上のように構成された板材は、裏面側切除部（１２）を有する他方の端部の先端面（１０ｂ）における表面側の角部と、一方の端部に形成された表面側切除部（１１）の端面（１１ａ）における表面側の角部とがそれぞれ面取りされているので、板材同士を接合する際に、基材の表面側に貼着された表面化粧材の端面同士が相互に接触することがなく、板材を接合する際に表面化粧材の端部につぶれが発生したり、表面化粧材が基材から剥離する等の損傷を受けることがない。また、裏面側切除部（１２）を有する一方の端部の先端面（１０ｂ）と表面側切除部（１１）の端面（１１ａ）とが相互に当接した接合状態では、表面側切除部（１１）の下面に形成された凹部（１５）または凸部における表面側切除部（１１）を有する端部の先端面（１０ａ）側の面（１５ａ）と、表面側切除部（１１）の下面に形成された凹部（１５）または凸部に嵌合している裏面側切除部（１２）の上面に形成された凸部（１６）または凹部における裏面側切除部（１２）の端面（１２ａ）側の面（１６ａ）との間に隙間が形成されているので、接合している板材を僅かに離反させることによって、裏面側切除部（１２）を有する一方の端部の先端面（１０ｂ）と表面側切除部（１１）の端面（１１ａ）との間及び凹部と凸部との間に僅かな隙間が形成されると共に、雌実（１３）と雄実（１４）とが相互に接触しなくなるので、板材を接合方向に直交する方向にスムースにスライドさせることができる。ただし、表面側切除部（１１）の下面に形成された凹部（１５）または凸部における表面側切除部（１１）を有する端部の先端面（１０ａ）側の面（１５ａ）と、表面側切除部（１１）の下面に形成された凹部（１５）または凸部に嵌合している裏面側切除部（１２）の上面に形成された凸部（１６）または凹部における裏面側切除部（１２）の端面（１２ａ）側の面（１６ａ）との間に形成される隙間が大きくなると、接合状態における裏面側切除部（１２）を有する一方の端部の先端面（１０ｂ）と表面側切除部（１１）の端面（１１ａ）との間に形成される隙間が大きくなるおそれがあるので、請求項２に係る発明の板材のように、接合状態で、表面側切除部（１１）の下面に形成された凹部（１５）または凸部における表面側切除部（１１）を有する端部の先端面（１０ａ）側の面（１５ａ）と、表面側切除部（１１）の下面に形成された凹部（１５）または凸部に嵌合している裏面側切除部（１２）の上面に形成された凸部（１６）または凹部における裏面側切除部（１２）の端面（１２ａ）側の面（１６ａ）との間に形成される隙間は、１ｍｍ以下に設定しておくのが望ましい。
【００１３】
また、請求項３に記載の板材のように、前記基材と前記表面化粧材との間及び前記基材の裏面に防湿層が設けられているものにあっては、基材の表裏両面における水分の吸放出が阻止されるので、基材の寸法変化が最小限に抑えられ、寸法精度に優れた板材が得られる。
【００１４】
特に、請求項４に記載の板材のように、前記雌実、前記雄実、前記凹部または前記凸部に、樹脂が含浸または塗布されているものにあっては、嵌合部位である雌実、雄実、凹部または凸部における水分の吸放出が阻止されるので、こういった嵌合部位の寸法安定性が向上すると共に、板材同士の接合部分（接触部分）における滑りがよくなるので、板材の接合作業や取り外し作業を円滑に行うことができるという効果がある。
【００１５】
【発明の実施の形態】
以下、実施の形態について図面を参照して説明する。図１及び図２（ａ）、（ｂ）に示すように、この板材１は、厚さ５．８ｍｍの長方形状の基材１０と、この基材１０の表裏両面に形成された厚さ０．２ｍｍの防湿層２０、３０と、基材１０の表面側に形成された防湿層２０の表面に貼着された表面化粧材としての厚さ０．３ｍｍもナラ突板４０とから構成されており、基材１０は、乾式法によって製造された比重が０．８以上の木質繊維板によって形成されている。
【００１６】
前記防湿層２０、３０は、紙とポリスチレンフィルムまたはポリエチレンフィルムとを積層してなるラミネートシートであり、冷圧プレスによって、基材１０の表裏両面に貼着されている。
【００１７】
図２（ａ）及び図３に示すように、長辺側の一方の端部には、基材１０の表面側を一定幅で切除することによって表面側切除部１１が形成されていると共に、相対する他方の端部には、基材１０の裏面側を一定幅で切除することによって裏面側切除部１２が形成されており、図２（ｂ）に示すように、短辺側の一方の端面１０ｃには雌実１７が形成されていると共に、相対する他方の端面１０ｄには雌実１７に嵌合可能な雄実１８が形成されている。
【００１８】
また、長辺側の端部には、図２（ａ）に示すように、裏面側切除部１２を有する一方の端部の先端面１０ｂにおける表面側の角部及び他方の端部に形成された表面側切除部１１の端面１１ａにおける表面側の角部がそれぞれ基材１０部分まで連続して面取りされることによって傾斜面１ｂ、１ａが形成されていると共に、短辺側の端部には、同図（ｂ）に示すように、それぞれの端面１０ｃ、１０ｄにおける表面側の角部がそれぞれ基材１０部分まで連続して面取りされることによって傾斜面１ｃ、１ｄが形成されている。
【００１９】
前記表面側切除部１１の端面１１ａには雌実１３が形成されていると共に、裏面側切除部１２を有する一方の端部の先端面１０ｂには雌実１３に嵌合可能な雄実１４が形成されており、図４に示すように、雌実１３に雄実１４が嵌合した状態では、雄実１４と雌実１３とが線接触するようになっている。
【００２０】
また、表面側切除部１１の下面１１ｂには凹部１５が形成されていると共に、裏面側切除部１２の上面１２ｂには凹部１５に嵌合可能な凸部１６がそれぞれ形成されており、図４に示すように、裏面側切除部１２を有する一方の端部の先端面１０ｂと表面側切除部１１の端面１１ａとが相互に当接した、板材１、１の接合状態では、相互に嵌合している凹部１５の一方の傾斜面１５ａと、この傾斜面１５ａに対向する凸部１６の一方の傾斜面１６ａとの間に０．３ｍｍ程度の僅かな隙間が形成されるようになっている。従って、凹部１５の傾斜面１５ａと凸部１６の傾斜面１６ａとが接触するまで、接合状態の板材１、１を僅かに離反させることができるようになっている。
【００２１】
また、板材１、１の接合状態では、凹部１５の他方の傾斜面１５ｂとこの傾斜面１５ｂに対向する凸部１６の他方の傾斜面１６ｂとの間及び裏面側切除部１２の端面１２ａと表面側切除部１１を有する端部の先端面１０ａとの間には、常時、隙間が形成されるようになっている。
【００２２】
また、雌実１３、雄実１４、凹部１５及び凸部１６には、粘度が５０ｃｐｓ以下で基材１０に容易に浸透した後に硬化する樹脂、例えば、湿気硬化型ウレタン樹脂やアクリル系樹脂等が含浸または塗布されている。なお、こういった樹脂には、撥水性を付与するためにシリコン樹脂等をブレンドしてもよい。
【００２３】
以上のように構成された板材１からなる床板を敷設する場合は、図５に示すように、まず、床下地材の所定位置に載置することによって最初の板材１を敷設する。そして、２枚目の板材１を、裏面側切除部１２を有する一方の端部が下向きになるように傾斜させた状態で、その裏面側切除部１２を、既に敷設されている１枚目の板材１の表面側切除部１１に嵌め込んで、雌実１３と雄実１４とを相互に嵌合させると共に、凹部１５と凸部１６とを相互に嵌合させることで、板材１同士をその短手方向に簡単に接合することができる。このようにして、板材１を相互に接合しながら順次敷設していく。
【００２４】
さらに、板材１を長手方向に接合する場合は、図６に示すように、長手方向に位置ずれさせた状態で板材１を短手方向に接合した後、同図に矢印で示すように、この板材１を長手方向にスライドさせることによって、既に敷設されている板材１の雄実１８に雌実１７を嵌合させることで、簡単に接合することができる。
【００２５】
上述したように、板材１を短手方向に接合した状態では、雌実１３と雄実１４とが線接触しており、しかも、短手方向に接合している板材１、１を僅かに離反させることによって、先端面１０ｂと端面１１ａとの間及び凹部１５と凸部１６との間に僅かな隙間が形成されると共に、雌実１３と雄実１４とが相互に接触しなくなるので、両板材１、１が短手方向に接合されているにも拘わらず、大きなスライド抵抗が加わることなく、板材１をスムースに長手方向にスライドさせることができる。特に、上述したように、雌実１３及び雄実１４にシリコン樹脂をブレンドした湿気硬化型樹脂等を含浸または塗布しておくと、雌実１３と雄実１４との間の滑り性が向上するので、さらにスムースに板材１をスライドさせることができる。
【００２６】
上述したように、この板材１を相互に接合する場合は、図７に示すように、一方の板材１における表面側切除部１１の端面１１ａと、他方の板材１における裏面側切除部１２を有する一方の端部の先端面１０ｂとが相互に当接することになるが、この板材１は、裏面側切除部１２を有する一方の端部の先端面１０ｂにおける表面側の角部と、他方の端部に形成された表面側切除部１１の端面１１ａにおける表面側の角部とがそれぞれ面取りされることによって傾斜面１ｂ、１ａが形成されているので、基材１０の表面側に貼着された突板４０の端面同士が相互に接触することがなく、板材１、１を接合する際に突板４０の端部につぶれが発生したり、突板４０が基材１０（防湿層２０）から剥離することもない。
【００２７】
また、端面１１ａ、１０ｂ、１０ｃ、１０ｄの表面側の角部が、突板４０から基材１０にわたって面取りされているので、突板４０部分のみを面取りする場合に比べて、より立体感のある面取り部を実現することができる。
【００２８】
また、この板材１は、基材１０の表裏両面にそれぞれ防湿層２０、３０が形成されており、しかも、雌実１３、雄実１４、凹部１５及び凸部１６といった嵌合部位に、湿気硬化型ウレタン樹脂やアクリル系樹脂といった、粘度が５０ｃｐｓ以下で基材１０に容易に浸透した後に硬化する樹脂が含浸または塗布されているので、嵌合部位が形成された基材１０に対する水分の吸放出が阻止され、嵌合部位に極めて良好な寸法安定性を確保することができる。
【００２９】
また、この板材１は、雌実１３、雄実１４、凹部１５及び凸部１６といった嵌合部位を切削加工しなければならない基材１０を、原料として短い木質繊維のみを使用する乾式法によって製造された木質繊維板によって形成するようにしたので、原料として長い木質繊維と短い木質繊維の双方を使用する湿式法によって製造された基材に比べて、切削加工時の繊維の抜けや毛羽立ち等が発生しにくく、滑らかな表面を有する寸法変化の少ない嵌合部位を精度良く形成することが可能になると共に、面取り部についても突板４０から基材１０にわたって連続した綺麗な傾斜面１ａ、１ｂ、１ｃ、１ｄを形成することが可能となる。
【００３０】
また、この板材１は、比重が０．８以上の緻密な木質繊維板によって基材１０が形成されているので、比重が０．８以下の中質繊維板（ＭＤＦ）等によって基材が形成されている板材に比べて、嵌合部位の強度が向上する。ＭＤＦ等によって形成されている板材では、板材の接合と取り外しを繰り返すと、嵌合部位にかけやへこみが発生し、板材同士をきちんと接合することができなくなるという問題があったが、この板材１では、接合と取り外しを繰り返しても、そういった問題が発生しにくく、常にきちんと接合することができるという効果がある。
【００３１】
また、乾式法によって製造された木質繊維板は、湿式法によって製造された木質繊維板に比べて、表裏両面に岩盤層が形成されやすいので、こういった木質繊維板によって基材１０を形成すると、曲げ強度の大きい板材１を得ることができると共に、切削加工することによって厚みが小さくなっている接合部分の強度が向上するという効果もある。従って、この板材１のように、乾式法によって製造された木質繊維板により基材１０を形成しておくと、基材１０や実の下部側に別部材を設けて補強することなく、板材１の厚みを小さくすることが可能となる。
【００３２】
また、この板材１は、接合状態にある板材１同士の離間を規制している凹部１５及び凸部１６の間に僅かな隙間が形成されていると共に、雌実１３及び雄実１４が線接触していることで、板材１が水分を吸収することによって膨潤した場合でも、凹凸部及び雄雌実部を確実に嵌合させることができるので、板材１の接合作業に支障をきたすことがなく、また、接合後に板材１が膨潤した場合でも、その膨潤をある程度吸収することができるので、板材１が膨潤することに伴って発生する先端面１０ｂと端面１１ａとの当接部分における板材１の突き上げを有効に防止することができるという効果がある。
【００３３】
ただし、凹部１５の傾斜面１５ａと凸部１６の傾斜面１６ａとの間に形成される隙間が大きくなると、接合状態における板材１、１の先端面１０ｂと端面１１ａとの間に形成される隙間が大きくなるおそれがあるので、凹部１５の傾斜面１５ａと凸部１６の傾斜面１６ａとの間に形成される隙間は、１ｍｍ以下、より好ましくは０．１〜０．５ｍｍ程度に設定しておくのがよい。
【００３４】
また、この板材１は、相対する一対の長辺側の端部に、雌実１３及び雄実１４と、凹部１５及び凸部１６といった嵌合方向の異なる２種類の嵌合部位を形成しているが、相対する一対の短辺側の端部には、相互に嵌合する雌実１７及び雄実１８のみを形成するようにしているので、上述したように、複数の板材１を前後左右に相互に接合していく場合に、特に良好な接合作業性が得られるという効果がある。
【００３５】
なお、この実施形態では、床板として使用される板材１について説明したが、これに限定されるものではなく、本発明の板材は、壁材等の種々の用途に使用される板材に適用することができることはいうまでもない。
【００３６】
また、この実施形態では、表面化粧材として突板４０を使用しているが、これに限定されるものではなく、メラミン含浸紙等の種々の表面化粧材を使用することができ、突板４０の表面に塗装を施したり、シート等を貼着したものであってもよい。
【００３７】
また、この実施形態では、端面１１ａ、１０ｂ、１０ｃ、１０ｄにおいて、突板４０から基材１０にわたって面取りされているが、これに限定されるものではなく、少なくとも、端面１１ａ、１０ｂにおいて突板４０部分が面取りされていればよい。
【００３８】
また、この実施形態では、フラットな傾斜面１ａ、１ｂ、１ｃ、１ｄが形成されるように角部が面取りされているが、これに限定されるものではなく、図８に示すように、湾曲面１ｅ、１ｆが形成されるように角部を面取りすることも可能である。このように、湾曲面１ｅ、１ｆが形成されるように角部を面取りしておくと、接合する際に相互に当接する端面１１ａ、１０ｂの上端部が不連続面とならないので、当接部分のかけや破損等を有効に防止することができると共に板材１の接合や取り外しをスムースに行うことができ、突板４０の面取り部に現れる木目模様が突板４０の表面に現れる木目模様と緩やかに連続した状態となるので、意匠性の高い面取り部を実現することができるという効果がある。
【００３９】
また、この実施形態では、雌実１３、雄実１４、凹部１５及び凸部１６といった全ての嵌合部位に、湿気硬化型ウレタン樹脂やアクリル系樹脂等を含浸または塗布しているが、これに限定されるものではなく、必要に応じて雄雌実部または凹凸部のいずれか一方のみに樹脂を含浸または塗布したり、基材１０の露出面の全てに樹脂を含浸または塗布してもよい。特に、接合する際に当接する端面１１ａ、１０ｂ、１０ｃ、１０ｄに樹脂を塗布しておくと、当接部分の破損を有効に防止することができるという効果がある。
【００４０】
また、この実施形態では、表面側切除部１１に雌実１３及び凹部１５を形成し、裏面側切除部１２を有する端部の先端面１０ｂに雄実１４を、裏面側切除部１２に凸部１６をそれぞれ形成しているが、これに限定されるものではなく、例えば、表面側切除部１１に雌実及び凸部を形成し、裏面側切除部１２を有する端部の先端面に雄実を、裏面側切除部に凹部をそれぞれ形成するといった具合に、雌実、雄実、凹部及び凸部の形成位置を任意に設定することができる。
【００４１】
また、この実施形態では、比重が０．８以上の木質繊維板によって基材１０を形成しているが、嵌合部位の強度向上という観点からは、比重が０．９以上の木質繊維板によって基材１０を形成しておくことが望ましい。
【図面の簡単な説明】
【図１】この発明にかかる板材を示す平面図である。
【図２】（ａ）は図１のＸ−Ｘ線に沿った断面図、（ｂ）は図１のＹ−Ｙ線に沿った断面図である。
【図３】同上の板材における一対の接合端部を示す断面図である。
【図４】同上の板材の接合状態を示す断面図である。
【図５】同上の板材の接合方法を示す図である。
【図６】同上の板材（床板）の敷設方法を示す平面図である。
【図７】同上の板材の接合途中を示す断面図である。
【図８】同上の板材の変形例を示す断面図である。
【図９】（ａ）は従来の板材を示す断面図、（ｂ）は同上の板材の接合方法を示す断面図である。
【図１０】従来の他の板材を示す断面図である。
【図１１】（ａ）は同上の板材の接合方法を示す断面図、（ｂ）は同上の板材の接合状態を示す断面図である。
【図１２】同上の板材の接合途中を示す断面図である。
【符号の説明】
１板材
１０基材
１１表面側切除部
１２裏面側切除部
１３、１７雌実
１４、１８雄実
１５凹部
１６凸部
２０、３０防湿層
４０突板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plate material used as a floor material, a wall material, or the like, and more particularly to a plate material that can be joined with one touch.
[0002]
[Prior art]
For example, as an interior material such as a floor board, as shown in FIG. 9 (a), the surface of the base 51 is formed with a male 52 on one end face and a female 53 on the other opposite face. A material having a decorative material 54 attached thereto is generally used, and such a plate member 50 is formed on a male fruit 52 formed on one end surface and on the other end surface as shown in FIG. The female seeds 53 are sequentially joined by fitting them together.
[0003]
By the way, in the plate material 50 joined by simply fitting the male fruit 52 and the female fruit 53 of the base material 51 in this way, the once joined plate materials 50 are easily separated from each other. When the plate material 50 is used, usually, the plate material 50 must be sequentially fixed to the base material or the like by using a fixing means such as an adhesive or a nail, and there is a problem that the construction is troublesome.
[0004]
For this reason, plate materials that can be joined with one touch without using fixing means such as adhesives and nails have been developed. As shown in FIG. 10, this type of plate material 60 is generally composed of a base material 61 formed of a wood material such as plywood, particle board, and MDF, and a surface decorative material 68 that is adhered to the surface of the base material 61. The one end of the base material 61 has a surface-side cut part 62 formed by cutting the surface side with a constant width, and the other opposite end is It has a back side cut portion 63 formed by cutting the back side with a constant width.
[0005]
Then, a female seed 64 is formed on the end surface of the front-side cut part 62, and a male fruit 65 that can be fitted to the female fruit 64 is formed on the tip surface of one end part having the back-side cut part 63, respectively. A concave portion 66 is formed on the lower surface of the front side cut portion 62, and a convex portion 67 that can be fitted into the concave portion 66 is formed on the upper surface of the rear surface side cut portion 63.
[0006]
As shown in FIG. 11A, the plate member 60 configured as described above is formed by connecting the plate member 60 to be bonded to the plate member 60 placed on the floor base material to the back side cut portion 63. In such a state that one end portion having an inclination is inclined downward, the back side cut portion 63 is fitted into the front side cut portion 62 of the plate member 60 already laid, so that the female seed 64 and the male seed 65 can be easily joined together by fitting the recesses 66 and the projections 67 together.
[0007]
In the state in which the plate members 60 are joined in this manner, as shown in FIG. 11B, the female seed 64 and the male seed 65 are fitted to each other, thereby preventing displacement in the thickness direction. Since the concave portions 66 and the convex portions 67 are fitted to each other, the separation of the plate materials 60 is prevented. In particular, the plate material 60 is used as a floor base material using an adhesive or a nail. Even if it is not fixed, it can be laid securely.
[0008]
[Problems to be solved by the invention]
By the way, when joining the plate member 60 having two types of fitting portions with different fitting directions, as described above, the rear surface side cut portion 63 of the other plate material 60 is connected to the front surface side cut portion 62 of one plate material 60. In this case, as shown in FIG. 12, after the end faces of the surface decorative material 68 in both plate members 60 are brought into contact with each other, as shown by arrows in FIG. The other plate member 60 is rotated about α as a fulcrum.
[0009]
Therefore, when the plate members 60 are joined to each other, a force is applied to the end surface portions of the surface decorative material 68 that are in contact with each other. There exists a problem that the edge part of the surface decoration material 68 will peel from the base material 61. FIG.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to enable a plate member having a plurality of fitting portions with different fitting directions at a joining portion to be joined without damaging the end portion of the surface decorative material. .
[0011]
[Means for solving the problems and effects thereof]
In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that one end portion has a surface-side cut portion (11) formed by cutting off the surface side, and the other end portion facing each other. Has a back side cut portion (12) formed by cutting the back side thereof, and a female fruit (13) is formed on the end surface (11a) of the front side cut portion (11). In addition, a concave portion or a convex portion is formed on the lower surface of the front surface side cut portion (11), and the tip surface (10b) of the other end portion having the rear surface side cut portion (12) A male part (14) into which the female part (13) is fitted is formed, and a convex part or a concave part into which the concave part or the convex part is fitted is formed on the upper surface of the rear-side cut part (12). In the plate having a base material that has been made, the surface side of the base material is surfaceized A material is adhered, and the front-side corner portion of the other end portion having the back-side cut portion (12) and the front-side cut portion (11) formed at one end portion The front side corners of the end surface are chamfered, and the end surface (10b) of one end having the back side cut portion (12) and the end surface (11a) of the front side cut portion (11) In the joined state where the two come into contact with each other, the male fruit (14) and the female fruit (13) are in line contact with each other, and the concave portion formed on the lower surface of the surface-side cut part (11). (15) or the surface (15a) on the front end surface (10a) side of the end portion having the surface side cut portion (11) in the convex portion, and the concave portion formed on the lower surface of the surface side cut portion (11) ( 15) or the back-side cut portion is fitted to the convex portion formed on the upper surface of (12) Provides a plate material, characterized in that a gap is formed between the end face (12a) side surface of the convex portion (16) or said at recess back side cutouts (12) (16a) It is.
[0012]
The plate material configured as described above includes a front-side corner (10b) of the other end portion having the back-side cut portion (12), and a front-side cut portion ( Since the corners on the surface side of the end surface (11a) of 11) are chamfered, the end surfaces of the surface decorative material adhered to the surface side of the base material contact each other when the plate materials are joined together. Therefore, when the plate materials are joined, the end portions of the surface decorative material are not crushed, and the surface decorative material is not damaged such as peeling from the base material. Moreover, in the joining state which the front end surface (10b) of one edge part which has a back surface side cutting part (12), and the end surface (11a) of the surface side cutting part (11) mutually contact | abutted, surface side cutting part ( 11) the surface (15a) on the front end surface (10a) side of the end portion having the concave portion (15) formed on the lower surface of the convex portion or the surface side cut portion (11) in the convex portion, and the lower surface of the surface side cut portion (11) The end surface (12a) of the rear surface side cut portion (12) in the convex portion (16) or the concave portion formed on the upper surface of the rear surface side cut portion (12) fitted to the concave portion (15) or the convex portion formed in Since a gap is formed with the side surface (16a) , the front end surface (10b) of one end portion having the rear surface side cut portion (12) can be obtained by slightly separating the joined plate members. And the end surface (11a) of the surface-side cut portion (11) and between the concave portion and the convex portion With a slight clearance is formed, because the Mesumi (13) and Omi (14) is not in contact with each other, it is possible to smoothly slide in a direction perpendicular to the plate material in the welding direction. However, the surface (15a) on the front end surface (10a) side of the end portion having the concave portion (15) formed on the lower surface of the front side cut portion (11) or the front side cut portion (11) in the convex portion, and the front side A concave portion (15) formed on the lower surface of the cut portion (11) or a convex portion (16) formed on the upper surface of the rear surface side cut portion (12) fitted to the convex portion or a rear surface side cut portion (in the concave portion ) 12) When the gap formed between the end surface (12a) side surface (16a) becomes large, the front end surface (10b) and the surface side of one end portion having the back side cut portion (12) in the joined state Since there is a possibility that a gap formed between the end surface (11a) of the cut portion (11) may become large, the surface-side cut portion (11) of the surface side cut portion (11) is in a joined state like the plate material of the invention according to claim 2. formed on the bottom surface recesses (15) or the surface-side cut portion of the raised portion The distal end surface of the end portion having a 11) and (10a) side surface (15a), formed on the bottom surface recesses of the surface-side cutouts (11) (15) or the back side cut portion is fitted to the convex portion The clearance formed between the convex portion (16) formed on the upper surface of (12) or the surface (16a) on the end surface (12a) side of the rear surface side cut portion (12) in the concave portion is set to 1 mm or less. It is desirable to keep it.
[0013]
Moreover, in the board | plate material of Claim 3, between the said base material and the said surface decoration material, and what is provided with the moisture-proof layer in the back surface of the said base material, in both the front and back of a base material Since the absorption and release of moisture is prevented, the dimensional change of the substrate can be minimized, and a plate material with excellent dimensional accuracy can be obtained.
[0014]
In particular, in the case where the female seed, the male seed, the concave part or the convex part is impregnated or coated with a resin as in the plate material according to claim 4, the female seed which is a fitting part Since the moisture absorption / release in the male part, the concave part or the convex part is prevented, the dimensional stability of such a fitting part is improved and the sliding at the joint part (contact part) between the plate members is improved. There is an effect that the joining work and the removing work can be smoothly performed.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. As shown in FIGS. 1 and 2 (a) and 2 (b), the plate member 1 has a rectangular base material 10 having a thickness of 5.8 mm and a thickness of 0 formed on both the front and back surfaces of the base material 10. .2 mm of moisture-proof layers 20 and 30 and a thickness of 0.3 mm as a surface decorative material adhered to the surface of the moisture-proof layer 20 formed on the surface side of the base material 10 are also composed of the oak veneer 40. The base material 10 is formed of a wood fiber board having a specific gravity of 0.8 or more manufactured by a dry method.
[0016]
The moisture-proof layers 20 and 30 are laminate sheets formed by laminating paper and a polystyrene film or a polyethylene film, and are adhered to both the front and back surfaces of the substrate 10 by a cold press.
[0017]
As shown in FIG. 2A and FIG. 3, at one end portion on the long side, a surface-side cut portion 11 is formed by cutting the surface side of the base material 10 with a constant width, At the other end opposite to each other, a back side cut portion 12 is formed by cutting the back side of the base material 10 with a constant width. As shown in FIG. A female fruit 17 is formed on the end face 10c, and a male fruit 18 that can be fitted to the female fruit 17 is formed on the other opposite end face 10d.
[0018]
Moreover, as shown to Fig.2 (a), it forms in the corner | angular part of the surface side in the front end surface 10b of the one end part which has the back surface side cutting part 12, and the other edge part, as shown to Fig.2 (a). The corners on the surface side of the end surface 11a of the surface-side cut portion 11 are continuously chamfered up to the base material 10 portion to form inclined surfaces 1b and 1a, and at the end portion on the short side side As shown in FIG. 5B, the inclined surfaces 1c and 1d are formed by continuously chamfering the corners on the surface side of the respective end surfaces 10c and 10d up to the base material 10 portion.
[0019]
A female seed 13 is formed on the end surface 11 a of the front side cut-out portion 11, and a male seed 14 that can be fitted to the female seed 13 is provided on the front end surface 10 b of one end having the back-side cut-out portion 12. As shown in FIG. 4, when the male fruit 14 is fitted to the female fruit 13, the male fruit 14 and the female fruit 13 are in line contact.
[0020]
Further, a concave portion 15 is formed on the lower surface 11b of the front side cut portion 11, and a convex portion 16 that can be fitted into the concave portion 15 is formed on the upper surface 12b of the back side cut portion 12, respectively. As shown in FIG. 1, the front end surface 10b of one end portion having the rear surface side cut portion 12 and the end surface 11a of the front surface side cut portion 11 are in contact with each other. A slight gap of about 0.3 mm is formed between one inclined surface 15a of the recessed portion 15 and one inclined surface 16a of the convex portion 16 facing the inclined surface 15a. . Therefore, the joined plate members 1 and 1 can be slightly separated until the inclined surface 15a of the concave portion 15 and the inclined surface 16a of the convex portion 16 come into contact with each other.
[0021]
Further, in the joined state of the plate members 1 and 1, between the other inclined surface 15b of the concave portion 15 and the other inclined surface 16b of the convex portion 16 opposed to the inclined surface 15b, and the end surface 12a and the surface of the back side cut portion 12 A gap is always formed between the distal end surface 10a of the end portion having the side cut portion 11.
[0022]
The female seed 13, the male seed 14, the concave portion 15 and the convex portion 16 are made of a resin having a viscosity of 50 cps or less and easily cured after penetrating the base material 10, for example, a moisture curable urethane resin or an acrylic resin. Impregnated or coated. Such a resin may be blended with a silicon resin or the like in order to impart water repellency.
[0023]
When laying a floor plate made of the plate material 1 configured as described above, as shown in FIG. 5, first, the first plate material 1 is laid by placing it at a predetermined position of the floor base material. And in the state which inclined the 2nd board | plate material 1 so that one edge part which has the back surface side cutting part 12 may face downward, the back surface side cutting part 12 is already laid. The plate material 1 is fitted into the cut portion 11 on the front surface side so that the female seed 13 and the male seed 14 are fitted to each other, and the concave portion 15 and the convex portion 16 are fitted to each other. Can be easily joined in the short direction. In this way, the plate members 1 are sequentially laid while being joined to each other.
[0024]
Furthermore, when joining the plate material 1 in the longitudinal direction, as shown in FIG. 6, after joining the plate material 1 in the short direction with the position shifted in the longitudinal direction, as shown by the arrow in FIG. By sliding the plate material 1 in the longitudinal direction, the female seed 17 of the plate material 1 that has already been laid can be fitted into the female seed 17 so that they can be easily joined.
[0025]
As described above, in the state in which the plate material 1 is joined in the short direction, the female fruit 13 and the male fruit 14 are in line contact, and the plate materials 1 and 1 joined in the short direction are slightly separated. By doing so, a slight gap is formed between the tip surface 10b and the end surface 11a and between the concave portion 15 and the convex portion 16, and the female fruit 13 and the male fruit 14 do not contact each other. Although the plate members 1 and 1 are joined in the short direction, the plate member 1 can be smoothly slid in the longitudinal direction without applying a large slide resistance. In particular, as described above, if the moisture curable resin or the like in which the silicone resin is blended with the female fruit 13 and the male fruit 14 is impregnated or coated, the slipperiness between the female fruit 13 and the male fruit 14 is improved. Therefore, the board | plate material 1 can be slid further smoothly.
[0026]
As described above, when the plate members 1 are joined to each other, as shown in FIG. 7, the plate member 1 has the end surface 11 a of the front side cut portion 11 in one plate member 1 and the back side cut portion 12 in the other plate member 1. The front end surface 10b of one end is in contact with each other, but this plate member 1 has a corner on the front side in the front end surface 10b of the one end having the back side cut portion 12 and the other end. Since the inclined surfaces 1b and 1a are formed by chamfering the corners on the surface side of the end surface 11a of the surface-side cut portion 11 formed in the part, they are adhered to the surface side of the base material 10. The end surfaces of the projecting plates 40 do not contact each other, and when the plate members 1 and 1 are joined, the end portions of the projecting plates 40 are crushed or the projecting plates 40 are peeled off from the base material 10 (moisture-proof layer 20). Nor.
[0027]
In addition, since the corners on the surface side of the end faces 11a, 10b, 10c, and 10d are chamfered from the protruding plate 40 to the base material 10, the chamfered portion has a more three-dimensional effect than when chamfering only the protruding plate 40 portion. Can be realized.
[0028]
Further, the plate material 1 has moisture-proof layers 20 and 30 formed on both the front and back surfaces of the base material 10, and moisture-curing is applied to mating sites such as the female fruit 13, the male fruit 14, the concave part 15, and the convex part 16. Since the resin that hardens after penetrating into the base material 10 with a viscosity of 50 cps or less, such as a type urethane resin or an acrylic resin, is impregnated or coated, so that moisture is absorbed into and released from the base material 10 on which the fitting site is formed. Is prevented, and extremely good dimensional stability can be secured at the fitting site.
[0029]
In addition, the plate material 1 is manufactured by a dry method using a short wood fiber as a raw material for a base material 10 that has to be cut at a fitting part such as a female fruit 13, a male fruit 14, a concave part 15 and a convex part 16. Since it is formed by the wood fiber board that has been made, compared to the base material manufactured by the wet method using both the long wood fiber and the short wood fiber as the raw material, there is no fiber slipping and fluffing at the time of cutting It is possible to accurately form a fitting portion that is less likely to occur and has a smooth surface with little dimensional change, and the chamfered portion also has beautiful inclined surfaces 1a, 1b, 1c continuous from the protruding plate 40 to the base material 10. 1d can be formed.
[0030]
In addition, since the base material 10 is formed by a dense wood fiber board having a specific gravity of 0.8 or more, the base material is formed by a medium fiber board (MDF) or the like having a specific gravity of 0.8 or less. Compared with the plate | board material currently used, the intensity | strength of a fitting site | part improves. In the plate material formed by MDF or the like, there is a problem that if the plate material is repeatedly joined and removed, the fitting portion is subjected to dents and dents, and the plate materials cannot be properly joined. Even if joining and removing are repeated, such a problem hardly occurs, and there is an effect that the joining can always be made properly.
[0031]
In addition, the wood fiberboard manufactured by the dry method is more likely to form rock layers on both the front and back surfaces compared to the wood fiberboard manufactured by the wet method. The plate material 1 having a high bending strength can be obtained, and there is an effect that the strength of the joint portion where the thickness is reduced by cutting is improved. Therefore, if the base material 10 is formed by the wood fiber board manufactured by the dry method like this board material 1, the board material 1 is provided without providing another member on the base material 10 or the actual lower side for reinforcement. It is possible to reduce the thickness.
[0032]
Further, in this plate material 1, a slight gap is formed between the concave portion 15 and the convex portion 16 that regulate the separation between the plate materials 1 in the joined state, and the female fruit 13 and the male fruit 14 are in line contact. By doing so, even when the plate material 1 swells by absorbing moisture, the concave and convex portions and the male and female real portions can be reliably fitted, so that the joining work of the plate material 1 is not hindered. In addition, even when the plate material 1 swells after joining, the swelling can be absorbed to some extent. Therefore, the plate material 1 in the contact portion between the tip surface 10b and the end surface 11a generated as the plate material 1 swells. There is an effect that push-up can be effectively prevented.
[0033]
However, when the gap formed between the inclined surface 15a of the concave portion 15 and the inclined surface 16a of the convex portion 16 becomes large, the gap formed between the front end surface 10b and the end surface 11a of the plate members 1 and 1 in the joined state. Therefore, the gap formed between the inclined surface 15a of the concave portion 15 and the inclined surface 16a of the convex portion 16 is set to 1 mm or less, more preferably about 0.1 to 0.5 mm. It is good to leave.
[0034]
Moreover, this board | plate material 1 forms two types of fitting parts in which fitting directions differ, such as the female fruit 13 and the male fruit 14, and the recessed part 15 and the convex part 16, in the edge part of a pair of opposing long side. However, since only the female fruit 17 and the male fruit 18 that are fitted to each other are formed at the ends of the pair of opposing short sides, as described above, the plurality of plate members 1 are arranged in the front, rear, left, and right directions. When joining to each other, there is an effect that particularly good workability can be obtained.
[0035]
In addition, in this embodiment, although the board | plate material 1 used as a floor board was demonstrated, it is not limited to this, The board | plate material of this invention applies to the board | plate material used for various uses, such as a wall material. Needless to say, you can.
[0036]
In this embodiment, the veneer 40 is used as the surface decorative material. However, the present invention is not limited to this, and various surface decorative materials such as melamine impregnated paper can be used. It may be applied with a paint or a sheet or the like.
[0037]
Further, in this embodiment, the end faces 11a, 10b, 10c, and 10d are chamfered from the protruding plate 40 to the base material 10, but the present invention is not limited to this. It only has to be chamfered.
[0038]
Moreover, in this embodiment, although the corner | angular part is chamfered so that flat inclined surface 1a, 1b, 1c, 1d may be formed, it is not limited to this, As shown in FIG. It is also possible to chamfer the corners so that the surfaces 1e and 1f are formed. Thus, if the corners are chamfered so that the curved surfaces 1e and 1f are formed, the upper end portions of the end surfaces 11a and 10b that contact each other at the time of joining do not become discontinuous surfaces. It is possible to effectively prevent clogging and breakage and to smoothly join and remove the plate material 1, and the grain pattern appearing on the chamfered portion of the projecting plate 40 is gently continuous with the grain pattern appearing on the surface of the projecting plate 40. Therefore, there is an effect that a chamfered portion having a high design property can be realized.
[0039]
Moreover, in this embodiment, moisture fitting type urethane resin, acrylic resin, etc. are impregnated or applied to all fitting parts such as the female seed 13, the male fruit 14, the concave part 15, and the convex part 16. It is not limited, and the resin may be impregnated or applied to only one of the male / female real part or the concavo-convex part, or the exposed surface of the substrate 10 may be impregnated or applied as necessary. . In particular, if the resin is applied to the end faces 11a, 10b, 10c, and 10d that come into contact with each other when bonded, there is an effect that breakage of the contact portion can be effectively prevented.
[0040]
Moreover, in this embodiment, the female side 13 and the recessed part 15 are formed in the surface side cutting part 11, the male fruit 14 is formed in the front end surface 10b of the edge part which has the back side cutting part 12, and the convex part is formed in the back side cutting part 12. 16 is formed, but the present invention is not limited to this. For example, a female fruit and a convex part are formed in the front surface side cut-out part 11, and a male fruit is formed on the front end surface of the end part having the back side cut out part 12. The formation positions of the female seed, the male seed, the concave portion, and the convex portion can be arbitrarily set in such a manner that the concave portion is formed in the back side cut portion.
[0041]
Moreover, in this embodiment, although the base material 10 is formed with the wood fiber board with a specific gravity of 0.8 or more, from the viewpoint of improving the strength of the fitting part, the specific gravity is 0.9 or more with the wood fiber board. It is desirable to form the base material 10 beforehand.
[Brief description of the drawings]
FIG. 1 is a plan view showing a plate material according to the present invention.
2A is a cross-sectional view taken along line XX in FIG. 1, and FIG. 2B is a cross-sectional view taken along line YY in FIG.
FIG. 3 is a cross-sectional view showing a pair of joining end portions in the plate material same as above.
FIG. 4 is a cross-sectional view showing a joined state of the same plate material.
FIG. 5 is a view showing a method for joining the plate materials same as above.
FIG. 6 is a plan view showing a method of laying the same plate material (floor board).
FIG. 7 is a cross-sectional view showing a state in the middle of joining the plate materials same as above.
FIG. 8 is a cross-sectional view showing a modified example of the same plate material.
9A is a cross-sectional view showing a conventional plate material, and FIG. 9B is a cross-sectional view showing a method for joining the same plate material.
FIG. 10 is a cross-sectional view showing another conventional plate material.
FIG. 11A is a cross-sectional view showing a method for joining the same plate material, and FIG. 11B is a cross-sectional view showing a joined state of the same plate material.
FIG. 12 is a cross-sectional view showing a state in the middle of joining the plate materials same as above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Board | plate material 10 Base material 11 Front side cut part 12 Back side cut part 13, 17 Female fruit 14, 18 Male fruit 15 Recessed part 16 Convex part 20, 30 Moisture-proof layer 40

Claims

One end portion has a front-side cut portion (11) formed by cutting off the front surface side, and the opposite other end portion is formed by cutting off the back surface side. Part (12),
On the end surface (11a) of the surface-side cut portion (11), a female fruit (13) is formed,
A concave portion or a convex portion is formed on the lower surface of the surface-side cut portion (11),
On the front end surface (10b) of the other end portion having the back side cut portion (12), a male fruit (14) into which the female fruit (13) is fitted is formed,
On the upper surface of the back side cut portion (12), in a plate material having a base material on which a convex portion or a concave portion into which the concave portion or the convex portion is fitted is formed,
A surface decorative material is attached to the surface side of the base material,
The front-side corner of the other end portion having the back-side cut portion (12), and the front-side corner portion of the front-side cut portion (11) formed at one end portion, Are chamfered,
In the joined state where the front end surface (10b) of one end portion having the back side cut portion (12) and the end surface (11a) of the front side cut portion (11) are in contact with each other, the male (14 ) And the female fruit (13) are in line contact with each other, and the surface side cut portion (11) in the concave portion (15) or the convex portion formed on the lower surface of the surface side cut portion (11). The back surface side cut that is fitted to the surface (15a ) on the front end surface (10a) side of the end portion having the above and the concave portion (15) or the convex portion formed on the lower surface of the front side cut portion (11) A gap is formed between the convex portion (16) formed on the upper surface of the portion (12) or the surface (16a) on the end surface (12a) side of the back side cut portion (12) in the concave portion. Characteristic board material.

In the joined state where the front end surface (10b) of one end portion having the back side cut portion (12) and the end surface (11a) of the front side cut portion (11) are in contact with each other, the front side cut portion The surface (15a) on the tip end surface (10a) side of the end portion having the surface side cut portion (11) in the concave portion (15) or the convex portion formed on the lower surface of (11), and the surface side cut portion ( 11) The rear surface side cut portion in the convex portion (16) or the concave portion formed on the upper surface of the rear surface side cut portion (12) fitted to the concave portion (15) or the convex portion formed on the lower surface of 11) The board | plate material of Claim 1 with which the said clearance gap formed between the surface (16a ) by the side of the end surface (12a) of (12) is set to 1 mm or less.

The board | plate material of Claim 1 or 2 with which the moisture-proof layer is provided between the said base material and the said surface decoration material, and the back surface of the said base material.

The board | plate material of Claim 1, 2 or 3 by which resin is impregnated or apply | coated to the said female fruit, the said male fruit, the said recessed part, or the said convex part.