JP3889327B2

JP3889327B2 - Metal floor bundle

Info

Publication number: JP3889327B2
Application number: JP2002202268A
Authority: JP
Inventors: 弘継辰巳; 智房北井; 吉包安田
Original assignee: 株式会社マイヅル
Priority date: 2002-07-11
Filing date: 2002-07-11
Publication date: 2007-03-07
Anticipated expiration: 2022-07-11
Also published as: JP2004044191A

Description

【０００１】
【発明の属する技術分野】
本発明は、戸建住宅等の建物の床下にあって、束石やべた基礎等の上に固定され、大引を支受する金属製床束に関するものである。
【０００２】
【従来の技術】
従来から、戸建住宅等の建物の床下で大引を支受する束としては、木製のものが用いられてきた。このような木製束は、基礎から大引までの高さを計測し、木材を切断場所に運んで上記計測寸法に合わせて切断し、この所定寸法の木材を基礎上に設置して大引を支受することが行われる。上記一連の作業が複数の作業員によって行われる場合も多く、高さの計測と木材の切断・取付が違う作業員によって行われ、取付場所が間違えられることもしばしばある。このような場合には、束の高さを大引の高さに調節するため、楔型に切断した木材を隙間に打ち込むことが行われている。
【０００３】
上記のような木製束では、木材を所定寸法に切断する作業や、楔による高さ調節作業が極めて煩雑である。しかも、木材の吸水や乾燥等によってソリが生じ易く、荷重による変形も生じやすい。また、束材には主として端材が用いられるため材質もバラバラで、変形や狂いも材質によって差があるため、精度面に問題がある。
【０００４】
そこで、最近では、木製束に代わって、鋼製の床束が利用されるようになってきている。上記鋼製束は、図９に示すように、大引１０を支受する支受プレート１１と、束石１２やコンクリート基礎にくぎ１７等で固定される土台プレート１３とを備えている。そして、上記支受プレート１１の下面にねじ棒１４が垂設されるとともに、土台プレート１３の上面にねじ棒１５が立設され、上記両ねじ棒１４，１５がターンバックル部１６で連結されている。この鋼製束は、ターンバックル部１６を回転させることにより支受プレート１１を昇降させて高さ調節をするようになっている。このような鋼製束によれば、作業時間の短縮による工期の短縮が可能となるうえ、大引の寸法変化に合わせるための「後調節」が容易で精度面の問題が解消する。
【０００５】
【発明が解決しようとする課題】
上記床束では、支受プレート１１に垂設されたねじ棒１４と土台プレート１３に立設されたねじ棒１５をターンバックル部１６で連結した構造になっているため、床束自体に一定以上の高さが必要になる。一方、最近の住宅では、小さい面積の土地をできるだけ有効に利用した設計がなされる場合が多く、都市部を中心に、３階建て住宅やガレージの上に部屋を設けた住宅が増えてきている。このような場合、床下の高さが６０〜１００ｍｍ程度と非常に低く、上記従来の床束は高さ寸法が高すぎて使用することができず、小型のものをつくったとしても調節幅が小さすぎるという問題があった。
【０００６】
そこで、上記のような低床建築の場合、角材を横に渡し、この角材を束としてその上に床を張ることが行われている。このように、低床建築では依然として木製の束が用いられ、腐朽による老朽化やそりによる狂いの問題が残っている。しかも、上記のような低床建築では、床下のスペースが極めて狭いため、一旦腐朽や狂いが生じた場合のメンテナンスが困難を極める、事実上不可能であるという問題がある。そこで、プラスチック束が使用される場合もあるが、プラスチック束は強度的に不十分で過重に耐えかねるうえ、木材にそりや狂いが生じた場合の後調節ができず、狂いが生じた場合は床を剥がして再度新しいプラスチック束を取りつけなければならないという問題がある。しかも、上記低床建築では、床下スペースが狭いことから、床下の異音が室内に響きやすく、ここに使用する床束としては、床鳴りの極めて少ないものが求められる。
【０００７】
さらに、マンション建築等では、コンクリート上に直接床材を張ると、硬くて老人や子供が骨折しやすいという問題があるうえ、冬場の寒さも問題となる。また、配管や配線を床下に施工したり、防音上の要請等から、上述の低床建築と同様の角材の束やプラスチック束を用いて床を張ることが行われている。このような場合や、コンクリートスラブ上に部屋等を建てた場合等は特に床下に湿気がこもりやすく、上述したような腐朽や狂いが大きな問題となっている。しかも、マンション等は集合住宅であることから、特に床鳴りや防音上の問題が大きかった。これらのような事情から、低床建築等において高さの調節幅が大きくて堅牢かつメンテナンス性もよい床束の開発が強く望まれていたが、現在までのところ、このような要望をすべて満足する床束は提供されていなかったのが実情である。
【０００８】
本発明は、このような事情に鑑みなされたもので、低床建築において高さの調節幅が大きく堅牢かつメンテナンス性もよい金属製床束の提供をその目的とする。
【０００９】
【課題を解決するための手段】
上記の目的を達成するため、本発明の金属製床束は、基礎等の上に設置される基台部と、床部材を支受する支受部と、上記基台部と支受部との間において支受部の高さ調節が可能となるように両者を連結する調節部とを備え、
上記調節部は、基台部と支受部のいずれか一方に回転可能に突設された雄ねじである第１ねじと、他方に突設された雌ねじである第２ねじと、上記第１ねじの雄ねじがら着される雌ねじ部および上記第２ねじの雌ねじにら着する雄ねじ部がともに形成されて第１ねじと第２ねじを結合させる結合ねじとを備えて構成され、
上記第２ねじが端部近傍のみに雌ねじが形成された中空部材であり、結合ねじの雄ねじ部先端にら進を阻止するら進阻止部が形成されるとともに、上記結合ねじがら進阻止部と反対側の端部近傍のみに雌ねじ部が形成された中空部材であり、第１ねじの雄ねじ先端部にら進を阻止するら進阻止部が形成されていることを要旨とする。
【００１０】
すなわち、本発明の金属製床束は、上記調節部は、基台部と支受部のいずれか一方に回転可能に突設された雄ねじである第１ねじと、他方に突設された雌ねじである第２ねじと、上記第１ねじの雄ねじがら着される雌ねじ部および上記第２ねじの雌ねじにら着する雄ねじ部がともに形成されて第１ねじと第２ねじを結合させる結合ねじとを備えて構成されている。このため、第１ねじと結合ねじのら着と、結合ねじと第２ねじのら着との２つのねじ結合により高さ調節を行なうため高さの調節幅を十分に確保できる。その結果、第１ねじ、結合ねじ、第２ねじのそれぞれの高さ寸法を小さく設定することが可能となり、床束自体の高さを低くすることができ、低床建築用として用いることができる。そして、従来の角材の束のような腐朽による老朽化やそりによる狂いの問題がほとんどなくなるため、床下スペースが狭くメンテナンスが困難な低床建築やマンション等において極めて有効である。さらに、プラスチック束に比較して極めて堅牢で、大引等の上方向へのそりにも耐えられるうえ、そりや狂いが生じた場合の後調節も容易に実施することができ、取替えの必要もない。
【００１１】
また、本発明の金属製床束は、上記第２ねじが端部に雌ねじが形成された中空部材であり、結合ねじの雄ねじ部先端にら進を阻止するら進阻止部が形成されるとともに、上記結合ねじがら進阻止部と反対側の端部に雌ねじ部が形成された中空部材であり、第１ねじの雄ねじ先端部にら進を阻止するら進阻止部が形成されているため、第１ねじと結合ねじおよび結合ねじと第２ねじのすっぽ抜けが防止され、どの程度回転させたのかを逐一確認しながら高さ調節作業を行なう必要がなくなり、作業性が格段に向上する。特に、第１ねじと結合ねじのら着状態と、結合ねじと第２ねじのら着状態とは、いずれもフリーで回転しら進し、第１ねじの回転ではいずれかを選択して回転させるような制御が困難であることから、上記すっぽ抜け防止の効果が顕著に現れる。
【００１２】
本発明の金属製床束において、上記第２ねじが基台部に設けられるとともに、上記第１ねじが支受部に設けられ、上記第１ねじを支受部の上側から回転させうる工具嵌合部が形成されている場合には、上記工具嵌合部にドライバや六角レンチを嵌合させ、第１ねじの回転を支受部の上側から行なうことができるため、高さが低い床の高さ調節の作業性が大幅に向上する。この場合、上からの作業であって調節部がどの程度の高さになっているかの確認が行ないにくいことから、特に、上述したようなら進阻止部を設けたねじのすっぽ抜けを防止する効果が顕著に現れる。
【００１３】
本発明の金属製床束において、上記支受部に複数のくぎ穴が穿設され、この支受部の支受面に弾性板が布設され、この弾性板の上記支受部のくぎ穴に対応する個所に、上記くぎ穴内に嵌合する嵌合突部が一体的に形成され、この嵌合突部の中央に、くぎ等を位置決めする位置決め穴が穿設されている場合には、支受部が床部材にくぎ打ちされたとき、これらの間に弾性板が挟まれた状態で固定される。したがって、建築当初から時間が経過して床部材に「やせ」が生じても、上記弾性板が、クッションとなり、支受部と床部材との間に隙間が生じにくくなる。しかも、床の上で大人が歩いても上記クッション作用でその振動が吸収されるうえ、床部材と支受部との間で上記弾性板が摺動板としての作用も奏し、きしみ音の発生が大幅に抑えられる。また、支受部が床部材にくぎ打ち等により取り付けられる際、くぎ穴内に嵌合した嵌合突部中央の位置決め穴に、くぎ等の先端が位置決めされ、上記位置決め穴に沿って嵌合突部の中央をくぎ等が貫通する。したがって、くぎ等と支受部のくぎ穴内面とが直接接触せず、くぎ等と支受部との金属同士が直接擦れることによるきしみ音が防止される。このように、床下の異音や床鳴りの極めて少ないものとなり、床下スペースが少ない低床建築や集合住宅，マンション等において極めて有効である。
【００１４】
【発明の実施の形態】
つぎに、本発明の実施の形態を詳しく説明する。
【００１５】
図１〜図５は、本発明の金属製床束の一実施の形態を示す。この金属製床束は、基礎等の上に設置される基台部１と、正面視においてＬ字状に形成されて大引１０等の床部材を支受するＬ形の支受部４と、上記基台部１と支受部４との間において支受部４の高さ調節が可能となるように両者を連結する調節部７とを備えている。
【００１６】
上記支受部４には、第１ねじ２が回転可能に下向きに突設されている。上記第１ねじ２は雄ねじであり、その根元部には第１ねじ２を回転させる際に工具を嵌合させる薄型ナット２３が取り付けられている。一方、基台部には第２ねじ３が上向きに突設されている。この第２ねじ３は雌ねじであり、外周部が六角状に形成され、工具を嵌合させうるようになっている。
【００１７】
そして上記調節部７は、支受部４の下面に形成された第１ねじ２と、基台部１に形成された第２ねじ３と、上記第１ねじ２の雄ねじがら着される雌ねじ部２２および上記第２ねじ３の雌ねじにら着する雄ねじ部２４がともに形成されて第１ねじ２と第２ねじ３を結合させる結合ねじ１９とから構成されている。
【００１８】
より詳しく説明すると、上記基台部１は、平面視において略長方形に形成された鋼製の板状体の中央に台状の盛り上り部８が形成され、この盛り上り部８の最も高くなった中央部に第２ねじ棒３が立設されている。
【００１９】
上記基台部１には、径の異なる複数の穴が穿設されている。これらのうち、基台部１の周辺部分に８個分布穿設された小径の穴は、基台部１を束石等にくぎ打ちにより固定するためのくぎ穴９である。また、上記くぎ穴９よりも少し内側寄りの部分に６個分布穿設された中径の穴は、基台部１の下面に接着剤を塗布して基台部１を基礎上に接着固定する際に、接着剤を流通させて上側にはみ出させ、そのはみ出した接着剤をそのまま固化させて固定を確実にするための接着剤流通穴５である。さらに、２個穿設された大径の穴は、基台部１を基礎に設けられたアンカーボルトによって固定する際に、上記アンカーボルトを挿通させるアンカーボルト挿通穴６である。なお、上記接着剤流通穴５，アンカーボルト挿通穴６，くぎ穴９は、接着剤塗布の際のエア抜き穴や、接着剤乾燥用の穴としての作用も奏する。
【００２０】
上記支受部４は、長方形の鋼板がＬ字状に折り曲げ形成されたＬ形の横片４ａの下面中央に、台状の盛り上り部８が形成されている。また、上記横片４ａには、その四隅寄りの４個所にくぎ穴９が穿設されている。また、縦片４ｂには、高さの異なる２個所にくぎ穴９が穿設されている。
【００２１】
そして、支受部４のＬ形の受け面には、同じくＬ形の弾性板１８が布設されている。この弾性板１８は、ポリエチレン樹脂製であり、全体が略長方形に形成され、支受部４の横片４ａに対応する横片部１８ａと、支受部４の縦片４ｂに対応する縦片部１８ｂと、支受部４の折れ曲がり部分に対応して折り曲げられる薄肉部１８ｃとからなっている。そして、この弾性板１８には、図６に示すように、上記支受部４のくぎ穴９に対応する個所に、上記くぎ穴９に嵌合する嵌合突部２０が形成されている。
【００２２】
上記嵌合突部２０は、略円柱状で、中央にくぎの先端を位置決めする位置決め穴２１が貫通するとともに、中央に所定幅の隙間が形成され、この隙間を介して縦割れの２分割状に形成されている。また、この嵌合突部２０の先端部は、半球状に形成され、その外周がくぎ穴９と係脱自在に係合する抜け止め突部に形成されている。そして、この嵌合突部２０は、支受部４のくぎ穴９に着脱自在に嵌合し、これにより支受部４の受け面に弾性板１８が布設されるようになっている。
【００２３】
上記調節部７は、上述したように、支受部４の下面に形成された第１ねじ２と、基台部１に形成された第２ねじ３と、上記第１ねじ２と第２ねじ３を結合させる結合ねじ１９とから構成されている。
【００２４】
上記第１ねじ２は中実状に形成された雄ねじであり、上記第２ねじ３は上端部に雌ねじが形成された中空部材である。また、上記結合ねじ１９も上端部に雌ねじが形成された中空部材である。そして、第１ねじ２は結合ねじ１９上端部の雌ねじにら着され、その結合ねじ１９は、第２ねじ３上端部の雌ねじにら着される。
【００２５】
これにより、上記第１ねじ２を回動させることにより、第１ねじ２と結合ねじ１９同士および結合ねじ１９と第２ねじ３同士がら進することにより、支受部４が上下動し、支受部４上に支受された大引１０等の床部材の高さ調節を行なうようになっている。そして、図５に示すように、上記第１ねじ２は中空状の結合ねじ１９の中空部に収まり、その結合ねじ１９は、中空状の第２ねじ３の中空部に収まるようになっているため、全体の高さを極めて低くすることができ、低床建築に好適なものとなる。また、第１ねじ２と結合ねじ１９同士および結合ねじ１９と第２ねじ３同士の２つのねじ結合で高さ調節を行なうことから、調節幅を大きくすることが可能である。このように、コンパクトさと調節幅の確保とを両立することができたのである。
【００２６】
図３は、上記弾性板１８を取り外した状態を示す。この図に示すように、第１ねじ２の上端部が支受部４の上側に露呈し、この上端面に、上記第１ねじ２を支受部４の上側から回転させうる工具嵌合部２７が形成されている。このようにすることにより、上記工具嵌合部２７にドライバ等の工具を嵌合させ、第１ねじ２の回転を支受部４の上側から行なうことができるため、高さが低い床の高さ調節の作業性が大幅に向上する。
【００２７】
そして、第１ねじ２の雄ねじ下端部には、ら進を阻止するら進阻止部２５が形成され、結合ねじ１９の雄ねじ下端部にも、ら進を阻止するら進阻止部２６が形成されている。上記各ら進阻止部２５，２６は、雄ねじのねじ山を塑性変形させて潰し、雌ねじとのら合を阻止するようにしたものである。
【００２８】
このようにすることにより、第１ねじ２と結合ねじ１９および結合ねじ１９と第２ねじ３のすっぽ抜けが防止され、どの程度回転させたのかを逐一確認しながら高さ調節作業を行なう必要がなくなり、作業性が格段に向上する。特に、第１ねじ２と結合ねじ１９のら着状態と、結合ねじ１９と第２ねじ３のら着状態とは、いずれもフリーで回転してら進し、第１ねじ２の回転ではいずれかを選択して回転させるような制御が困難である。そして、上述したように、第１ねじ２を回転させて高さ調節をする作業が、上からの作業であって調節部７がどの程度の高さになっているかの確認が行ないにくいことから、特に、上述したようなら進阻止部を設けたねじのすっぽ抜けを防止する効果が顕著に現れる。
【００２９】
上記構成において、上記金属製床束は、例えば、つぎのようにして使用することができる。すなわち、図７に示すように、基台部１をコンクリート基礎またはスラブ上に固定する。この状態で、上記第１ねじ２を回動させることにより、支受部４が上下動して床面の高さ調節が行われる。そして、支受部４が所定の高さに設定された状態で、支受部４に大引または根太（床部材）１０を固定し、必要に応じて、接着剤等を用いて第１ねじ２，結合ねじ１９，第２ねじ３の回転止めを行なう。このようにすることにより、高さの狂いを防止できるうえ、自由回転部分がなくなるため、鳴りの発生も防止される。
【００３０】
ここで、上記支受部４の大引１０への固定は、つぎのようにして行われる。支受部４の弾性板１８の縦片部１８ｂおよび横片部１８ａの双方に大引１０を当接させるように位置決めする。ついで、くぎ穴９に嵌合されて外側に露呈する嵌合突部２０の位置決め穴２１に、くぎの先端を位置決めし、その状態から、くぎを位置決め穴２１内に沿って貫通させるように打ち付ける。そして、嵌合突部２０を変形させて押しつぶすようにしながら、くぎが貫通して大引１０に打ち込まれる。これにより、支受部４が大引１０にくぎ打ちされたとき、弾性板１８が挟まれた状態で固定される（図１参照）。また、くぎと支受部４との間に押しつぶされた嵌合突部２０が挟まれるようになり、くぎと支受部４とが直接接触することなく固定することができる。
【００３１】
また、基台部１の束石１２への固定は、例えば、つぎのようにして行う。まず、基台部１の下面に、接着剤を塗布して束石１２上面に基台部１を接着する。このとき、上記基台部１に分布穿設された接着剤流通穴５を通って接着剤が上側にはみ出し、そのはみ出た部分の接着剤が固化してアンカー効果で強固に固定される。また、接着剤流通穴５からはみ出た部分の接着剤は、空気中の水分と反応しやすくなったり、溶剤が揮発しやすくなったりするため、接着剤の硬化促進作用も有する。このとき、上記接着剤流通穴５，アンカーボルト挿通穴６およびくぎ穴９がエア抜き効果も奏する。そののち、基台部１に形成されたくぎ穴９を利用してくぎを打ちつけ、基台部１を束石１２に固定する。
【００３２】
このように、上記金属製床束によれば、第１ねじ２と結合ねじ１９のら着と、結合ねじ１９と第２ねじ３のら着との２つのねじ結合により高さ調節を行なうため高さの調節幅を十分に確保できる。その結果、第１ねじ２、結合ねじ１９、第２ねじ３のそれぞれの高さ寸法を小さく設定することも可能となり、床束自体の高さを低くすることができ、低床建築用として用いることができる。そして、従来の角材の束のような腐朽による老朽化やそりによる狂いの問題がほとんどなくなるため、床下スペースが狭くメンテナンスが困難な低床建築やマンション等において極めて有効である。さらに、プラスチック束に比較して極めて堅牢で、大引等の上方向へのそりにも耐えられるうえ、そりや狂いが生じた場合の後調節も容易に実施することができ、取替えの必要もない。
【００３３】
また、支受部４が大引１０にくぎ打ちされたとき、弾性板１８が挟まれた状態で固定される。したがって、大引１０に「やせ」が生じても、上記弾性板１８がクッションとなり、支受部４と大引１０との間に隙間が生じにくくなるうえ、振動が吸収され、きしみ音の発生が抑えられる。また、支受部４が大引１０にくぎ打ちにより取り付けられる際、くぎ穴９に嵌合した嵌合突部２０中央の位置決め穴２１に、くぎの先端が位置決めされ、上記位置決め穴２１に沿って嵌合突部２０の中央をくぎが貫通する。したがって、くぎと支受部４とが接触せず、金属同士が直接擦れることによるきしみ音が防止される。
【００３４】
図８は、本発明の金属製床束の第２の実施の形態を示す。このものは、支受部４と基台部１との間の調節部７が、図１に示すものとは逆になっている。それ以外は上記第１の実施の形態と同様であり、同様の部分には同じ符号を付している。このものでも、上記第１の実施の形態と同様の作用効果を奏する。
【００３５】
なお、上記各実施の形態では、弾性板１８をポリエチレン樹脂で形成したが、これに限定されるものではなく、天然ゴム，合成ゴム等の各種ゴム材料や、ウレタン系樹脂，シリコーン系樹脂等の各種樹脂材料等各種の材料を用いることができる。また、支受部４と大引１０との固定および基台部１と束石１２との固定にくぎを使用した例を説明したが、これに限定するものではなく、支受部４もしくは基台部１のくぎ穴９にビス等を挿通させてビス止め等によって固定しても差し支えない。
【００３６】
また、上記各実施の形態では、支受部材としてＬ型の支受部４を用いた例を示したが、平板状のものを用いてもよい。さらに、上記各実施の形態では、本発明の金属製床束を戸建て住宅に使用した例を説明したが、これに限定するものではなく、マンションや集合住宅で使用してもよく、ベランダや庭，公園等屋外で床材等を張る場合にも使用することができる。
【００３７】
また、上記各実施の形態では、ロックナットを取り付けなかったが、第１ねじ２と結合ねじ１９の少なくともいずれかにロックナットをら着することもできる。このように、ロックナットでゆるみ止めを行うことにより、高さの狂いを防止できるうえ、自由回転部分がなくなるため、鳴りの発生も防止される。
【００３８】
【発明の効果】
以上のように、本発明の金属製床束によれば、第１ねじと結合ねじのら着と、結合ねじと第２ねじのら着との２つのねじ結合により高さ調節を行なうため高さの調節幅を十分に確保できる。その結果、第１ねじ、結合ねじ、第２ねじのそれぞれの高さ寸法を小さく設定することが可能となり、床束自体の高さを低くすることができ、低床建築用として用いることができる。そして、従来の角材の束のような腐朽による老朽化やそりによる狂いの問題がほとんどなくなるため、床下スペースが狭くメンテナンスが困難な低床建築やマンション等において極めて有効である。さらに、プラスチック束に比較して極めて堅牢で、大引等の上方向へのそりにも耐えられるうえ、そりや狂いが生じた場合の後調節も容易に実施することができ、取替えの必要もない。また、第１ねじと結合ねじおよび結合ねじと第２ねじのすっぽ抜けが防止され、どの程度回転させたのかを逐一確認しながら高さ調節作業を行なう必要がなくなり、作業性が格段に向上する。特に、第１ねじと結合ねじのら着状態と、結合ねじと第２ねじのら着状態とは、いずれもフリーで回転しら進し、第１ねじの回転ではいずれかを選択して回転させるような制御が困難であることから、上記すっぽ抜け防止の効果が顕著に現れる。
【図面の簡単な説明】
【図１】本発明の一実施の形態の金属製床束を示す正面図である。
【図２】上記金属製床束の右側面図である。
【図３】上記金属製床束の平面図である。
【図４】上記金属製床束の底面図である。
【図５】上記金属製床束のＡ−Ａ断面図である。
【図６】上記金属製床束のＢ−Ｂ断面図である。
【図７】上記金属製床束の使用状態を示す斜視図である。
【図８】本発明の第２の実施の形態の金属製床束を示す断面図である。
【図９】従来例の金属製床束を示す斜視図である。
【符号の説明】
１基台部
２第１ねじ
３第２ねじ
４支受部
４ａ横片
４ｂ縦片
５接着剤流通穴
６アンカーボルト挿通穴
７調節部
８盛り上り部
９くぎ穴
１０大引
１１支受プレート
１２束石
１３土台プレート
１４ねじ棒
１５ねじ棒
１６ターンバックル部
１７くぎ
１８弾性板
１８ａ横片部
１８ｂ縦片部
１８ｃ薄肉部
１９結合ねじ
２０嵌合突部
２１位置決め穴
２２雌ねじ部
２３薄型ナット
２４雄ねじ部
２５ら進阻止部
２６ら進阻止部
２７工具嵌合部[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a metal floor bundle that is under a floor of a building such as a detached house and is fixed on a boulder or a solid foundation and receives a large draw.
[0002]
[Prior art]
Conventionally, a wooden material has been used as a bundle for receiving a large discount under the floor of a building such as a detached house. Such a wooden bundle measures the height from the foundation to the large draw, transports the wood to the cutting place, cuts it according to the above measurement dimensions, installs the wood of this predetermined size on the foundation and pulls the large draw. It is carried out. In many cases, the above-described series of work is performed by a plurality of workers, and the height measurement and the cutting and mounting of the wood are performed by different workers, and the mounting location is often mistaken. In such a case, in order to adjust the height of the bundle to the height of the pull, the wood cut into a wedge shape is driven into the gap.
[0003]
In the wooden bundle as described above, the work of cutting the wood into a predetermined dimension and the height adjustment work using a wedge are extremely complicated. Moreover, warping is likely to occur due to water absorption or drying of the wood, and deformation due to load is also likely to occur. Further, since the end material is mainly used for the bundle material, the material is also different, and there is a problem in accuracy because there is a difference in deformation and deviation depending on the material.
[0004]
Therefore, recently, a steel floor bundle has been used instead of a wooden bundle. As shown in FIG. 9, the steel bundle includes a support plate 11 that supports the large pull 10, and a base plate 13 that is fixed to the boulder 12 or the concrete foundation with a nail 17 or the like. A screw rod 14 is suspended from the lower surface of the support plate 11, a screw rod 15 is erected on the upper surface of the base plate 13, and both the screw rods 14, 15 are connected by a turnbuckle portion 16. Yes. This steel bundle adjusts the height by raising and lowering the support plate 11 by rotating the turnbuckle portion 16. According to such a steel bundle, the work period can be shortened by shortening the working time, and “post-adjustment” for adjusting to the large dimensional change is easy and the problem of accuracy is solved.
[0005]
[Problems to be solved by the invention]
The floor bundle has a structure in which the screw rod 14 suspended from the support plate 11 and the screw rod 15 erected from the base plate 13 are connected by the turnbuckle portion 16, so that the floor bundle itself exceeds a certain level. The height of is required. On the other hand, recent houses are often designed to use land of a small area as effectively as possible, and the number of houses with three-story houses and rooms on garages is increasing, especially in urban areas. . In such a case, the height under the floor is very low, about 60 to 100 mm, and the conventional floor bundle cannot be used because its height is too high. There was a problem of being too small.
[0006]
Therefore, in the case of the low-floor building as described above, a square is handed over and a floor is stretched on the square as a bundle. In this way, wooden floors are still used in low-floor buildings, and the problems of aging due to decay and madness due to warping remain. Moreover, in the low-floor building as described above, since the space under the floor is extremely narrow, there is a problem that it is practically impossible to perform maintenance once it has decayed or goes wrong. There are cases where plastic bundles are used, but plastic bundles are not strong enough to withstand excessive loads. There is a problem that the floor must be peeled off and a new plastic bundle must be installed again. Moreover, in the low-floor building, since the space under the floor is narrow, abnormal noise under the floor easily resonates in the room, and the floor bundle used here is required to have extremely low floor noise.
[0007]
Furthermore, in an apartment building or the like, if flooring is stretched directly on concrete, there is a problem that it is hard and the elderly and children are easily broken, and the cold in winter is also a problem. In addition, pipes and wires are installed under the floor, and floors are stretched using a bundle of square materials and plastic bundles similar to the above-mentioned low-floor building due to demands for soundproofing and the like. In such a case or when a room or the like is built on a concrete slab, moisture tends to be trapped particularly under the floor, and the above-mentioned decay and madness are a serious problem. Moreover, since condominiums and the like are apartments, there are particularly serious problems with floor noise and sound insulation. For these reasons, there has been a strong demand for the development of floor bundles that have a large height adjustment range and are robust and easy to maintain in low-floor buildings, etc., but to date, all such requests have been satisfied. The actual situation is that the floor bundle to be used was not provided.
[0008]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a metal floor bundle having a large height adjustment width and being robust and having good maintainability in a low-floor building.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a metal floor bundle of the present invention includes a base part installed on a foundation or the like, a support part that supports a floor member, the base part and the support part, An adjustment part that connects the two so that the height of the support part can be adjusted between
The adjusting portion includes a first screw that is a male screw projecting rotatably on one of the base portion and the support portion, a second screw that is a female screw projecting on the other side, and the first screw A female screw portion to which the male screw is screwed and a male screw portion to be screwed to the female screw of the second screw are both formed, and includes a coupling screw for coupling the first screw and the second screw ,
The second screw is a hollow member in which a female screw is formed only in the vicinity of the end portion, and an advance prevention portion is formed at the front end of the male screw portion of the coupling screw to prevent the advancement. It is a hollow member in which a female screw portion is formed only in the vicinity of the opposite end portion, and the gist is that a forward blocking portion is formed at the leading end portion of the male screw of the first screw to prevent the forward movement .
[0010]
That is, in the metal floor bundle according to the present invention, the adjusting portion includes a first screw that is a male screw projecting rotatably on either the base portion or the support portion, and a female screw projecting on the other. And a coupling screw that joins the first screw and the second screw by forming both the female screw portion to which the male screw of the first screw is attached and the male screw portion to be attached to the female screw of the second screw. It is configured with. For this reason, since the height adjustment is performed by two screw couplings of the first screw and the coupling screw, and the coupling screw and the second screw, the height adjustment width can be sufficiently secured. As a result, the height of each of the first screw, the coupling screw, and the second screw can be set small, the height of the floor bundle itself can be reduced, and it can be used for low floor construction. . In addition, since there is almost no problem of aging due to decay such as a bundle of conventional square bars and distorted problems due to warpage, it is extremely effective in low-floor buildings and condominiums where the under-floor space is narrow and maintenance is difficult. In addition, it is extremely robust compared to plastic bundles, can withstand upward sleds, etc., and can be easily adjusted after warping or misalignment, requiring replacement. Absent.
[0011]
Further, the metal floor beam of the present invention is a hollow member internally threaded is formed in the second Nejigatan section, with Susumu Luo blocking unit for blocking the male screw tip leek advances the coupling screw is formed a hollow member having a female screw portion is formed at the opposite end with the coupling Nejigara proceeds blocking unit, for Luo proceeds blocking unit for blocking the male screw tip leek advance of the first screw is formed, The first screw and the coupling screw and the coupling screw and the second screw are prevented from slipping out, so that it is not necessary to perform the height adjustment work while confirming the degree of rotation, and the workability is remarkably improved. In particular, both the first screw and the connecting screw are loosely attached, and the connecting screw and the second screw are attached in a free state, and the first screw is rotated and selected. Since such control is difficult, the above-mentioned effect of preventing slipping out appears remarkably.
[0012]
In the metal floor bundle according to the present invention, the second screw is provided on the base portion, the first screw is provided on the support portion, and the tool fit capable of rotating the first screw from the upper side of the support portion. When the joint portion is formed, a screwdriver or hexagon wrench can be fitted to the tool fitting portion and the first screw can be rotated from the upper side of the support portion. The workability of height adjustment is greatly improved. In this case, since it is difficult to confirm the height of the adjusting portion from the top, it is particularly difficult to prevent the screw provided with the advance prevention portion from slipping off as described above. The effect is noticeable.
[0013]
In the metal floor bundle of the present invention, a plurality of nail holes are formed in the support part, an elastic plate is laid on the support surface of the support part, and the nail hole of the support part of the elastic plate is provided in the nail hole of the support part. When a fitting projection that fits into the nail hole is integrally formed at the corresponding location, and a positioning hole for positioning a nail or the like is formed at the center of this fitting projection, When the receiving part is nailed to the floor member, the elastic plate is fixed between them. Therefore, even if time elapses from the beginning of construction and the floor member is “skinned”, the elastic plate serves as a cushion, and a gap is less likely to be generated between the support portion and the floor member. Moreover, even when an adult walks on the floor, the vibrations are absorbed by the cushioning action, and the elastic plate also acts as a sliding plate between the floor member and the support part, generating squeak noise. Is greatly suppressed. Further, when the support part is attached to the floor member by nailing or the like, the tip of the nail or the like is positioned in the positioning hole at the center of the fitting protrusion fitted into the hole, and the fitting protrusion is aligned along the positioning hole. A nail or the like penetrates the center of the part. Accordingly, the nail or the like and the inner surface of the nail hole of the support portion are not in direct contact with each other, and a squeak noise due to the metal of the nail and the support portion being directly rubbed is prevented. In this way, abnormal noise and floor noise under the floor are extremely small, and it is extremely effective in low-floor buildings, apartment houses, condominiums, etc. where there is little space under the floor.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail.
[0015]
1 to 5 show an embodiment of a metal floor bundle according to the present invention. The metal floor bundle includes a base portion 1 installed on a foundation and the like, and an L-shaped support portion 4 that is formed in an L shape in a front view and supports a floor member such as a large pull 10. Further, an adjustment portion 7 is provided between the base portion 1 and the support portion 4 so that the height of the support portion 4 can be adjusted.
[0016]
A first screw 2 protrudes downward from the support portion 4 so as to be rotatable. The first screw 2 is a male screw, and a thin nut 23 to which a tool is fitted when the first screw 2 is rotated is attached to the root portion. On the other hand, the second screw 3 protrudes upward from the base portion. The second screw 3 is a female screw, and the outer peripheral portion is formed in a hexagonal shape so that a tool can be fitted therein.
[0017]
The adjusting portion 7 includes a first screw 2 formed on the lower surface of the support portion 4, a second screw 3 formed on the base portion 1, and a female screw portion to which the male screw of the first screw 2 is attached. 22 and a male screw portion 24 that is attached to the female screw of the second screw 3 are formed together, and is composed of a coupling screw 19 that couples the first screw 2 and the second screw 3 together.
[0018]
More specifically, the base portion 1 has a plate-like raised portion 8 formed at the center of a steel plate formed in a substantially rectangular shape in plan view, and the highest raised portion 8 is formed. A second screw rod 3 is erected at the center.
[0019]
The base portion 1 is formed with a plurality of holes having different diameters. Among these, eight small-diameter holes distributed and drilled in the peripheral portion of the base portion 1 are nail holes 9 for fixing the base portion 1 to a boulder or the like by nailing. In addition, six medium-diameter holes, which are distributed in a portion slightly closer to the inner side than the nail hole 9, are coated with an adhesive on the lower surface of the base 1 and fixed to the foundation. In this case, the adhesive is distributed through the adhesive hole 5 for allowing the adhesive to circulate and protrude upward, and to solidify the protruding adhesive as it is to ensure fixing. Furthermore, the two large-diameter holes drilled are anchor bolt insertion holes 6 through which the anchor bolts are inserted when the base portion 1 is fixed by anchor bolts provided on the basis. The adhesive circulation hole 5, the anchor bolt insertion hole 6, and the nail hole 9 also function as an air vent hole when applying the adhesive or as a hole for drying the adhesive.
[0020]
The support portion 4 has a trapezoidal raised portion 8 formed at the center of the lower surface of an L-shaped horizontal piece 4a formed by bending a rectangular steel plate into an L shape. Further, the horizontal piece 4a is provided with nail holes 9 at four positions near the four corners. In addition, the vertical piece 4b is formed with nail holes 9 at two different heights.
[0021]
Similarly, an L-shaped elastic plate 18 is provided on the L-shaped receiving surface of the support portion 4. The elastic plate 18 is made of polyethylene resin, and is formed in a substantially rectangular shape as a whole. The elastic plate 18 has a horizontal piece portion 18 a corresponding to the horizontal piece 4 a of the support portion 4 and a vertical piece corresponding to the vertical piece 4 b of the support portion 4. It consists of the part 18b and the thin part 18c bent according to the bending part of the support part 4. As shown in FIG. As shown in FIG. 6, the elastic plate 18 is formed with a fitting protrusion 20 that fits into the nail hole 9 at a location corresponding to the nail hole 9 of the support part 4.
[0022]
The fitting protrusion 20 has a substantially cylindrical shape, and a positioning hole 21 for positioning the tip of the nail passes through the center, and a gap of a predetermined width is formed in the center. Is formed. Moreover, the front-end | tip part of this fitting protrusion 20 is formed in hemispherical shape, and the outer periphery is formed in the retaining protrusion which engages with the nail hole 9 removably. The fitting protrusion 20 is detachably fitted into the nail hole 9 of the support portion 4 so that the elastic plate 18 is laid on the receiving surface of the support portion 4.
[0023]
As described above, the adjusting portion 7 includes the first screw 2 formed on the lower surface of the support portion 4, the second screw 3 formed on the base portion 1, the first screw 2 and the second screw. 3 and a connecting screw 19 for connecting 3.
[0024]
The first screw 2 is a solid male screw, and the second screw 3 is a hollow member having a female screw formed at the upper end. The coupling screw 19 is also a hollow member having a female screw formed at the upper end. The first screw 2 is attached to the female screw at the upper end of the coupling screw 19, and the coupling screw 19 is attached to the female screw at the upper end of the second screw 3.
[0025]
As a result, by rotating the first screw 2, the first screw 2 and the coupling screw 19, and the coupling screw 19 and the second screw 3, move up and down, so that the support portion 4 moves up and down. The height of the floor member such as the large pull 10 supported on the receiving portion 4 is adjusted. As shown in FIG. 5, the first screw 2 is accommodated in the hollow portion of the hollow coupling screw 19, and the coupling screw 19 is accommodated in the hollow portion of the hollow second screw 3. Therefore, the overall height can be made extremely low, which is suitable for low floor construction. Further, since the height adjustment is performed by two screw couplings between the first screw 2 and the coupling screw 19 and between the coupling screw 19 and the second screw 3, it is possible to increase the adjustment width. Thus, it was possible to achieve both compactness and ensuring the adjustment range.
[0026]
FIG. 3 shows a state where the elastic plate 18 is removed. As shown in this figure, the upper end portion of the first screw 2 is exposed to the upper side of the support portion 4, and the tool fitting portion capable of rotating the first screw 2 from the upper side of the support portion 4 on the upper end surface. 27 is formed. By doing in this way, since tools, such as a driver, can be fitted to the said tool fitting part 27, and the rotation of the 1st screw 2 can be performed from the upper side of the support part 4, the height of the floor where height is low. The workability of the adjustment is greatly improved.
[0027]
Then, at the lower end portion of the male screw of the first screw 2, a advance prevention portion 25 is formed to prevent the advancement, and at the lower end portion of the male screw of the coupling screw 19, an advancement prevention portion 26 is formed to prevent the advancement. ing. Each of the above-mentioned advancement preventing portions 25 and 26 is formed by plastically deforming and crushing the thread of the male screw to prevent the engagement with the female screw.
[0028]
By doing so, it is possible to prevent the first screw 2 and the connecting screw 19 and the connecting screw 19 and the second screw 3 from slipping out, and it is necessary to perform the height adjustment work while confirming how much the screw has been rotated one by one. And the workability is greatly improved. In particular, the first screw 2 and the connecting screw 19 are either loosely attached, and the connecting screw 19 and the second screw 3 are attached freely. It is difficult to control such that is selected and rotated. Then, as described above, the work of adjusting the height by rotating the first screw 2 is a work from above, and it is difficult to confirm how high the adjusting unit 7 is. In particular, as described above, the effect of preventing the removal of the screw provided with the advance prevention portion appears remarkably.
[0029]
The said structure WHEREIN: The said metal floor bundle can be used as follows, for example. That is, as shown in FIG. 7, the base part 1 is fixed on a concrete foundation or slab. In this state, by rotating the first screw 2, the support portion 4 moves up and down to adjust the height of the floor surface. Then, with the support part 4 set to a predetermined height, the overdraw or joist (floor member) 10 is fixed to the support part 4 and, if necessary, the first screw using an adhesive or the like. 2. The rotation of the coupling screw 19 and the second screw 3 is stopped. By doing so, the deviation in height can be prevented and the free rotation portion is eliminated, so that the occurrence of noise is also prevented.
[0030]
Here, fixing of the support portion 4 to the large pull 10 is performed as follows. Positioning is performed so that the large pull 10 is brought into contact with both the vertical piece portion 18b and the horizontal piece portion 18a of the elastic plate 18 of the support portion 4. Next, the front end of the nail is positioned in the positioning hole 21 of the fitting protrusion 20 that is fitted to the nail hole 9 and exposed to the outside, and from that state, the nail is driven so as to penetrate through the positioning hole 21. . The nail penetrates and is driven into the large pull 10 while deforming and crushing the fitting protrusion 20. Thereby, when the support part 4 is nailed to the large pull 10, the elastic plate 18 is fixed in a sandwiched state (see FIG. 1). Further, the squeezed fitting protrusion 20 is sandwiched between the nail and the support portion 4, and the nail and the support portion 4 can be fixed without being in direct contact.
[0031]
Moreover, the base part 1 is fixed to the boulders 12 as follows, for example. First, an adhesive is applied to the lower surface of the base portion 1 to bond the base portion 1 to the upper surface of the bundling stone 12. At this time, the adhesive protrudes upward through the adhesive circulation holes 5 distributed and drilled in the base 1, and the adhesive in the protruding portion is solidified and firmly fixed by the anchor effect. Further, the adhesive that protrudes from the adhesive circulation hole 5 easily reacts with moisture in the air, and the solvent tends to volatilize, and thus has an effect of promoting the curing of the adhesive. At this time, the adhesive circulation hole 5, the anchor bolt insertion hole 6 and the nail hole 9 also have an air venting effect. After that, a nail is struck using the nail holes 9 formed in the base part 1, and the base part 1 is fixed to the boulders 12.
[0032]
As described above, according to the metal floor bundle, height adjustment is performed by two screw couplings of the first screw 2 and the coupling screw 19 and the coupling screw 19 and the second screw 3. Sufficient height adjustment range can be secured. As a result, the height of each of the first screw 2, the coupling screw 19, and the second screw 3 can be set to be small, the height of the floor bundle itself can be lowered, and it is used for low floor construction. be able to. In addition, since there is almost no problem of aging due to decay such as a bundle of conventional square bars and distorted problems due to warpage, it is extremely effective in low-floor buildings and condominiums where the under-floor space is narrow and maintenance is difficult. In addition, it is extremely robust compared to plastic bundles, can withstand upward sleds, etc., and can be easily adjusted after warping or misalignment, requiring replacement. Absent.
[0033]
Moreover, when the support part 4 is nailed to the large pull 10, the elastic plate 18 is fixed in a sandwiched state. Therefore, even if “loss” occurs in the large pull 10, the elastic plate 18 acts as a cushion, and it is difficult for a gap to be formed between the support portion 4 and the large pull 10, and vibrations are absorbed and squeak noise is generated. Is suppressed. Further, when the support portion 4 is attached to the large pull 10 by nail driving, the tip of the nail is positioned in the positioning hole 21 at the center of the fitting protrusion 20 fitted in the nail hole 9, and along the positioning hole 21. Thus, the nail penetrates the center of the fitting protrusion 20. Therefore, the nail and the support portion 4 do not come into contact with each other, and a squeak noise due to metal rubbing directly is prevented.
[0034]
FIG. 8 shows a second embodiment of the metal floor bundle of the present invention. In this device, the adjusting portion 7 between the support portion 4 and the base portion 1 is opposite to that shown in FIG. The rest is the same as in the first embodiment, and the same reference numerals are given to the same parts. This also has the same effect as the first embodiment.
[0035]
In each of the above embodiments, the elastic plate 18 is made of polyethylene resin. However, the elastic plate 18 is not limited to this. Various rubber materials such as natural rubber and synthetic rubber, urethane resin, silicone resin, etc. Various materials such as various resin materials can be used. Moreover, although the example which used the nail | claw for fixation of the support part 4 and the large pull 10 and fixation of the base part 1 and the boulder stone 12 was demonstrated, it is not limited to this, The support part 4 or base A screw or the like may be inserted into the nail hole 9 of the base 1 and fixed by screwing or the like.
[0036]
Moreover, in each said embodiment, although the example using the L-shaped support part 4 was shown as a support member, a flat thing may be used. Further, in each of the above-described embodiments, the example in which the metal floor bundle of the present invention is used for a detached house has been described. However, the present invention is not limited to this, and may be used in a condominium or an apartment house. It can also be used when flooring is spread outdoors in parks.
[0037]
In each of the above embodiments, the lock nut is not attached. However, the lock nut can be attached to at least one of the first screw 2 and the coupling screw 19. In this way, by preventing the locking nut from loosening, it is possible to prevent the height from being distorted and to prevent the occurrence of squeal since there is no free rotating portion.
[0038]
【The invention's effect】
As described above, according to the metal floor bundle of the present invention, the height is adjusted by adjusting the height by the two screw connections of the first screw and the connecting screw and the connecting screw and the second screw. A sufficient adjustment range can be secured. As a result, the height of each of the first screw, the coupling screw, and the second screw can be set small, the height of the floor bundle itself can be reduced, and it can be used for low floor construction. . In addition, since there is almost no problem of aging due to decay such as a bundle of conventional square bars and distorted problems due to warpage, it is extremely effective in low-floor buildings and condominiums where the under-floor space is narrow and maintenance is difficult. In addition, it is extremely robust compared to plastic bundles, can withstand upward sleds, etc., and can be easily adjusted after warping or misalignment, requiring replacement. Absent. In addition, the first screw and the coupling screw and the coupling screw and the second screw are prevented from slipping out, so that it is not necessary to adjust the height while checking the degree of rotation one by one. To do. In particular, both the first screw and the connecting screw are loosely attached, and the connecting screw and the second screw are attached in a free state, and the first screw is rotated and selected. Since such control is difficult, the above-mentioned effect of preventing slipping out appears remarkably.
[Brief description of the drawings]
FIG. 1 is a front view showing a metal floor bundle according to an embodiment of the present invention.
FIG. 2 is a right side view of the metal floor bundle.
FIG. 3 is a plan view of the metal floor bundle.
FIG. 4 is a bottom view of the metal floor bundle.
FIG. 5 is a cross-sectional view of the metal floor bundle taken along the line AA.
FIG. 6 is a cross-sectional view of the metal floor bundle taken along the line BB.
FIG. 7 is a perspective view showing a usage state of the metal floor bundle.
FIG. 8 is a cross-sectional view showing a metal floor bundle according to a second embodiment of the present invention.
FIG. 9 is a perspective view showing a conventional metal floor bundle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base part 2 1st screw 3 2nd screw 4 Supporting part 4a Horizontal piece 4b Vertical piece 5 Adhesive flow hole 6 Anchor bolt insertion hole 7 Adjustment part 8 Swelling part 9 Nail hole 10 Large pull 11 Supporting plate 12 Bundle stone 13 Base plate 14 Screw rod 15 Screw rod 16 Turn buckle portion 17 Nail 18 Elastic plate 18a Horizontal piece portion 18b Vertical piece portion 18c Thin portion 19 Coupling screw 20 Fitting projection 21 Positioning hole 22 Female screw portion 23 Thin nut 24 Male screw Part 25 Advance prevention part 26 Advance prevention part 27 Tool fitting part

Claims

Both the base part installed on the foundation, the support part for supporting the floor member, and the height of the support part between the base part and the support part can be adjusted. And an adjustment unit for connecting the
The adjusting portion includes a first screw that is a male screw projecting rotatably on one of the base portion and the support portion, a second screw that is a female screw projecting on the other side, and the first screw A female screw portion to which the male screw is screwed and a male screw portion to be screwed to the female screw of the second screw are both formed, and includes a coupling screw for coupling the first screw and the second screw ,
The second screw is a hollow member in which a female screw is formed only in the vicinity of the end portion, and an advance prevention portion is formed at the front end of the male screw portion of the coupling screw to prevent the advancement. A metal floor bundle characterized in that it is a hollow member in which a female thread portion is formed only in the vicinity of the opposite end portion, and a forward blocking portion is formed at the leading end portion of the male screw of the first screw. .

The said 2nd screw is provided in a base part, The said 1st screw is provided in a support part, The tool fitting part which can rotate the said 1st screw from the upper side of a support part is formed. 1 Symbol placement of the metal floor beam.

A plurality of nail holes are drilled in the support part, and an elastic plate is laid on the support surface of the support part. The metal floor bundle according to claim 1 or 2, wherein a fitting projection to be fitted is integrally formed, and a positioning hole for positioning a nail or the like is formed in the center of the fitting projection.