【０００１】
【発明の属する技術分野】
本発明は、床基盤の上方に上部床を支持するための二重床の支持手段に関する。
【０００２】
【従来の技術】
集合住宅やオフィスビル等においては、防音性能を高めるためや、床下の配管や配線を容易にするために、床基盤の上方に上部床を配置するいわゆる二重床が用いられている。従来の二重床は特許文献１に提示されており、その従来の二重床を図５及び図６に示す。二重床は、床基盤７０の上に多数の支持手段７２を備え、それらの多数の支持手段７２によって上部床（図５及び図６では、上部床の構成部材の一部である床下地材７４を示す）を支持するものである。支持手段７２は、床基盤７０の上に置かれる下部台座７６と、その下部台座７６の上に立脚した状態で回転自在に備えられる支持脚７８と、その支持脚７８の上部に取付けられる上部台座８０と、その上部台座８０の上に載せられる受座８２とから成る。支持脚７８は下方の棒状部８４と上方の雄螺子８６とから成り、棒状部８４は下部台座７６に対して自由に回転できるように嵌合されている。上部台座８０は、筒状部８８とその一端に外側に広がる鍔部９０と筒状部８８の内側に形成されている雌螺子９２とから成る。支持脚７８の雄螺子８６と上部台座８０の筒状部８８の雌螺子９２とは螺合した状態に設定される。
【０００３】
二重床を作る場合には、先ず床基盤７０の上に各下部台座７６を接着剤で固定する。次に、上部台座８０の鍔部９０の上に受座８２を載せ、上部台座８０と受座８２とを保持した状態で支持脚７８を上部台座８０に対して螺合した状態で回転させる。これによって、上部台座８０と受座８２は支持脚７８（床基盤７０）に対して昇降する。支持脚７８に対する上部台座８０の高さを調節することによって、各受座８２の上面を同一水平面に調節する。同一水平面になった多数の受座８２の上に床下地材７４を載せ、その後、釘等の固定手段９４で受座８２と床下地材７４とを固定する。
【０００４】
支持脚７８の雄螺子８６と上部台座８０の雌螺子９２との螺合箇所は、上部床の振動等により、時間の経過と共にガタツキや緩みが発生する。このため、支持脚７８に対する上部台座８０の高さが決定すると、支持脚７８と雌螺子９２との螺合箇所に接着剤を流し込み、支持脚７８と上部台座８０とを固定する。この際、床下地材７４の上から支持脚７８と雌螺子９２との螺合箇所に接着剤を流し込むことができるように、予め床下地材７４に貫通穴９６を形成すると共に、受座８２に貫通穴９８を形成する。これによって、支持脚７８に対する上部台座８０の高さの変動が無くなり、床下地材７４は最初に設定した水平状態を保持できる。床下地材７４を水平状態に設定した後、その床下地材７４の上に例えばフローリング材、木質フロア、床タイル等の床表面仕上げ材（図示せず）を載せ、床下地材７４と床表面仕上げ材とを図示しない固定手段で固定する。
【０００５】
【特許文献１】
実用新案登録第２５８３１８４号公報（図１並びに図１５）
【０００６】
【発明が解決しようとする課題】
建物が例えばマンションやビル等の場合には、床基盤７０は一般に鉄筋コンクリートで作られているため、床基盤７０自体が湾曲したりすることはない。しかし、建物が例えば工務店等の建売住宅の場合には、コンクリートの床基盤７０の下に位置する土の地固めや根固めが充分に行われていないことがあり、そのような場合には床基盤７０の一部が降下したりへこむ方向に湾曲したりする。床基盤７０が降下したり湾曲したりすると、支持手段７２に固定支持されている床下地材７４も降下し、その上に固定されている床表面仕上げ材が波打ってしまうという不具合が発生していた。
【０００７】
床基盤７０が下降した位置における支持手段７２を調節する場合は、作業者が床基盤７０と床下地材７４の間に入って、支持脚７８を回転させることで、支持脚７８の雄螺子８６と上部台座８０の筒状部８８の雌螺子９２との螺合箇所の接着剤を外す。その後、支持脚７８を更に回転させて、床表面仕上げ材が波打たないように、支持脚７８に対して受座８２と床下地材７４を上昇させてそれらの高さを調節する。受座８２と床下地材７４の高さを調節した後は、支持脚７８の雄螺子８６と上部台座８０の雌螺子９２との螺合箇所のガタツキや緩みの発生を防止するため、先程接着を外した雄螺子８６と雌螺子９２との螺合箇所を再度接着剤で固定しなければならない。
【０００８】
しかし、支持脚７８の雄螺子８６と上部台座８０の雌螺子９２との螺合箇所は、床基盤７０と床下地材７４の間に入った作業者からは閉鎖された状態になっているため、作業者は雄螺子８６と雌螺子９２との螺合箇所に接着剤を流し込むことができない。このため、床下地材７４に固定した床表面仕上げ材を外して図５に示す状態とし、この図５の状態において床下地材７４の貫通穴９６や受座８２の貫通穴９８から雄螺子８６と雌螺子９２との螺合箇所に接着剤を流し込む作業を行わなければならない。この床表面仕上げ材を床下地材７４から外す作業は時間と費用がかかるという不具合があった。更に、床表面仕上げ材を傷つけるおそれがあった。
【０００９】
木造建築の２階以上の床基盤７０においては、木材が使用されている。木材を使用した床基盤７０の場合には上面に斜めの勾配があったり凹凸があったりして、床基盤７０の上面が水平にはならないことが多い。また、下部台座７６の下面は従来から平面形状となっている。このため、木材を使用した床基盤７０の場合には、支持脚７８の軸中心を鉛直に保持することが難しく、その結果、受座８２の上面や床下地材７４の上面を水平にすることができないという不具合があった。
【００１０】
本発明は上記の点に鑑みてなされたもので、雄螺子と雌螺子との接着剤による固定箇所の接着剤を外すことなく上部床の高さ調節を行うことができる二重床の支持手段を提供することを目的とするものである。
【００１１】
【課題を解決するための手段】
上記目的を達成するための本発明に係る支持手段は、下部側第一螺合手段と上部側第一螺合手段とを一体に形成した高さ調節部材と、床基盤の上に載せる下部台座に固定されるものであって前記下部側第一螺合手段と螺合するための下部側第二螺合手段と、受座または床下地材を支持するための上部台座と、その上部台座に対して回転自在に接触支持する支持板を有するものであって前記上部側第一螺合手段と螺合するための上部側第二螺合手段とを有し、前記上部側第一螺合手段と前記上部側第二螺合手段とを接着剤で接着するようにしたものである。
【００１２】
本発明は、上部側第一螺合手段と上部側第二螺合手段のいずれか一方を雄螺子とすると共にいずれか他方を雌螺子とし、前記雄螺子の外面において中心軸と平行な方向からねじの進む方向にやや傾斜した方向に溝を形成するようにしたものである。本発明はまた、上部側第一螺合手段を雄螺子とし、その雄螺子の下端の周囲に接着剤をそこより下へ流さないようにするための液滴れ防止部材を備えるようにしたものである。本発明は更に、前記支持板を上下に挟む上部鍔部と下部鍔部とを前記上部台座に形成するようにしたものである。本発明はその上、前記下部台座の底面を部分球面形状とし、その下部台座の底面と前記床基盤とを接着剤で接着するようにしたものである。
【００１３】
【作用】
床基盤の上に置かれる下部台座に螺合してその下部台座に対して高さを変える高さ調節部材を有する。その高さ調節部材の上部に上部側第一螺合手段を形成し、その上部側第一螺合手段と螺合する上部側第二螺合手段を備える。その上部側第二螺合手段の外壁に外方に突出する環状の支持板を形成する。その支持板の上に受座または床下地材を支持するための上部台座を載せ、しかも支持板と上部台座とは互いに回転移動自在な状態とする。高さ調節部材の上部側第一螺合手段とそれと螺合する上部側第二螺合手段との螺合箇所を接着剤で接着する。高さ調節部材の上部側第一螺合手段と上部側第二螺合手段との螺合箇所が接着剤で接着されているので、受座や床下地材の高さを調節する（上昇させる）際に、高さ調節部材を下部台座に対して回転させると、上部側第二螺合手段は高さ調節部材と共に回転上昇して、その上部側第二螺合手段の上に載せた上部台座を上昇させ、その結果として受座または床下地材を上昇させる。これによって、受座または床下地材の高さの調整を行って、床表面仕上げ材を平面に保持することができる。この際、上部側第一螺合手段と上部側第二螺合手段との螺合箇所の接着剤を外さなくて済むので、床表面仕上げ材を床下地材から外さなくて済み、従来よりも作業経費と作業時間とを低減することができる。
【００１４】
【発明の実施の形態】
次に本発明を図面に基づいて説明する。
図１は本発明に係る二重床の支持手段を示す断面図である。本発明に係る二重床の支持手段は、床基盤１０に接触する下部台座１２と、この下部台座１２の上部に固定した棒状の支持軸１４と、その支持軸１４の上部に固定した下部側第二螺合手段としての筒状の雌螺子部材１６とを有する。この雌螺子部材１６の内壁には雌螺子１８が形成されており、その雌螺子部材１６の上端には外側に向かって広がる鍔部２０が一体に形成されている。下部台座１２の底面２２は、平面状のものであっても良いが、図１に示すような部分球面状のものであっても良い。下部台座１２の底面２２を部分球面状のものとした場合には、部分球面状の底面２２と床基盤１０との間に接着剤２３を介在させて、下部台座１２と床基盤１０とを接着剤２３で固定する。下部台座１２を床基盤１０に接着剤２３で固定する際に、支持軸１４及び筒状の雌螺子部材１６を鉛直状態に保持する。なお、支持軸１４を省略して、雌螺子部材１６を下部台座１２に直接固定するようにしても良い。
【００１５】
本発明に係る支持手段は更に、高さ調節部材２４を有する。この高さ調節部材２４は、下方から上方に向けて下部側第一螺合手段としての下部側雄螺子２６と回転係合部２８と上部側第一螺合手段としての上部側雄螺子３０との３つの部材を一体に形成したものである。下部側第一螺合手段としての下部側雄螺子２６は、前記雌螺子部材１６に形成される下部側第二螺合手段としての雌螺子１８と螺合するものである。下部側雄螺子２６と雌螺子部材１６の雌螺子１８とを螺合する前に、下部側雄螺子２６にナット３２を先に螺合させ、その後、下部側雄螺子２６を雌螺子部材１６の雌螺子１８に螺合させる。高さ調節部材２４は雌螺子部材１６に対する高さを変えることができるもので、高さ調節部材２４の回転係合部２８に例えばレンチ等の工具を係合させ、その工具によって高さ調節部材２４を回転させることで、雌螺子部材１６に対する高さ調節部材２４の高さを変えることができる。雌螺子部材１６に対する高さ調節部材２４の高さが決定すると、前記ナット３２を雌螺子部材１６の鍔部２０に接触するまで移動させる。これによって、高さ調節部材２４の下部側雄螺子２６を雌螺子部材１６の雌螺子１８とナット３２とのダブルナットによって固定することになり、雌螺子部材１６に対する高さ調節部材２４の位置ずれを防止できる。
【００１６】
高さ調節部材２４の上部側雄螺子３０の外面に、その上部側雄螺子３０の中心軸と平行な方向からやや傾斜した方向に、接着剤を通過させるための複数の溝３４（図１，図３及び図４）を形成する。この溝３４の進行方向は、中心軸と平行な方向からねじの進む方向にやや傾斜した方向に形成されている。上部側雄螺子３０の下端の外周には環状で皿状の液滴れ止め部材３６が備えられている。この液滴れ止め部材３６は、溝３４を通って落下してきた接着剤を受けて、接着剤を下へ流さないようにするものである。
【００１７】
本発明に係る支持手段は、上部台座３８を有する。上部台座３８は、図１及び図３に示すように、筒状部４０と、その筒状部４０の下端から外側に広がる上部鍔部４２と、その上部鍔部４２と間隔を空けた下部鍔部４４と、上部鍔部４２の外縁と下部鍔部４４の外縁とを連絡する筒状の連絡部材４６とからなる。上部鍔部４２は、その上に受座４８（図６の受座８２と同様のもの）を支持するものである。受座４８の中央には貫通穴４９が形成されており、受座４８の貫通穴４９を上部鍔部４２の筒状部４０に嵌合させることで、受座４８を上部台座３８の上部鍔部４２の上に載せる。
【００１８】
本発明に係る支持手段は更に、雌螺子部材５０を有する。図１及び図３に示すように、雌螺子部材５０は筒状であり、その筒状の内壁の軸方向全域にわたって上部側第二螺合手段としての雌螺子５２が形成されている。高さ調節部材２４の上部側雄螺子３０に、この雌螺子部材５０の雌螺子５２を螺合させる。筒状の雌螺子部材５０の高さの中央位置の外壁には、外側に向かって広がる環状の支持板５４が一体に形成されている。この支持板５４は、上部台座３８の上部鍔部４２と下部鍔部４４との高さの間に下側に隙間を設けた状態で装着される。この状態では、雌螺子部材５０の支持板５４の上に上部台座３８の上部鍔部４２が載せられる。支持板５４を上部鍔部４２と下部鍔部４４とで隙間を設けて挟むことによって、本発明の支持手段を組立てる際に、上部台座３８が雌螺子部材５０から外れることがないので作業性が良い。
【００１９】
雌螺子部材５０の支持板５４で上部台座３８の上部鍔部４２を支持した後、上部台座３８の上部鍔部４２の上に受座４８を載せ、その受座４８の上に床下地材５６を載せ、釘等の固定手段５８でそれらを固定する。なお、上部鍔部４２の上には、受座４８に代えて床下地材５６を直接載せるようにしても良いが、受座４８を載せるのが望ましい。床下地材５６には、上部側雄螺子３０と雌螺子部材５０の雌螺子５２との螺合箇所に接着剤を流し込むことができるための貫通穴６０が形成されている。
【００２０】
ここで、本発明において、受座４８の上面即ち床下地材５６の上面を均一な高さに調節する場合について説明する。先ず、下部台座１２の底面２２を部分球面状のものとして、床基盤１０と下部台座１２とを接着剤２３で固定する。これによって、上面に斜めの勾配があったり凹凸があったりする木材を床基盤１０とした場合でも、支持軸１４及び筒状の雌螺子部材１６を鉛直状態に設置することができ、受座４８の上面及び床下地材５６の上面を水平にすることができる。なお、本発明では、下部台座１２の底面２２を必ずしも部分球面状にする必要はない。
【００２１】
次に、雌螺子部材１６の雌螺子１８に下部側雄螺子２６を螺合させてそれらの相対位置を調節すると共に、上部台座３８の筒状部４０の雌螺子５２に高さ調節部材２４の上部側雄螺子３０を螺合させてそれらの相対位置を調節する。これらの２つの螺合箇所を調節することで、受座４８の上面の高さ（床下地材５６の上面の高さ）を決定する。受座４８の上面の高さ（床下地材５６の上面の高さ）を決定した後は、床下地材５６の貫通穴６０から高さ調節部材２４の上部側雄螺子３０の溝３４に接着剤を流し込む。上部側雄螺子３０の溝３４に流し込まれた接着剤は、溝３４から上部台座３８の筒状部４０の雌螺子５２と高さ調節部材２４の上部側雄螺子３０との螺合箇所に染み込んで、その螺合箇所を緩まないように固定する。溝３４に流し込まれた接着剤の余剰の接着剤は、液滴れ止め部材３６によって受け止められ、下方へ流れ落ちないようにする。接着剤によって高さ調節部材２４と上部台座３８とを固定した後、床下地材５６の上に図示しない床表面仕上げ材を載せ、床下地材５６と床表面仕上げ材とを既知の固定手段で固定して二重床を完成させる。
【００２２】
床基板１０に降下や湾曲へこみが発生した場合に、本発明の支持手段による高さの調節について説明する。作業者は床基盤１０と床下地材５６の間に入り、先ずナット３２を回してナット３２を下部側雄螺子２６に対して上昇させて、雌螺子部材１６に対して高さ調節部材２４を回転自在にする。その後、高さ調節部材２４の回転係合部２８にレンチなどの工具を係合させて、高さ調節部材２４を雌螺子部材１６に対して回転しながら上昇させる。この際、高さ調節部材２４と雌螺子部材５０とは接着材で固定状態に保たれているため、雌螺子部材５０とそれに一体に形成された支持板５４とは回転しながら上昇する。この支持板５４は、上部台座３８の上部鍔部４２と接触しながら上昇し、上部台座３８を上昇させる。これによって、上部台座３８の上部鍔部４２によって支持されている受座４８並びに床下地材５６も上昇する。この結果、床基板１０に降下や湾曲へこみが発生しても、高さ調節部材２４を回転させるだけで、受座４８並びに床下地材５６の高さを調節することができる。なお、高さの調節が完了した後は、ナット３２を回して雌螺子部材１６に接触させる。
【００２３】
本発明では、高さ調節部材２４の上部側雄螺子３０と雌螺子部材５０の雌螺子５２とを固定する接着剤を外さなくて済む。この結果、従来は床下地材５６の上に載せた床表面仕上げ材を外して再度接着剤を流し込む作業を必要としたのに対し、本発明では床下地材５６の上に載せた床表面仕上げ材を外す作業を省略することができる。
【００２４】
なお、前述の説明では、高さ調節部材２４の下部側第一螺合手段と上部側第一螺合手段とを雄螺子とし、下部側第二螺合手段と上部側第二螺合手段とを雌螺子として説明した。その反対に、高さ調節部材２４の下部側第一螺合手段と上部側第一螺合手段とを雌螺子とし、下部側第二螺合手段と上部側第二螺合手段とを雄螺子としても良い。
【００２５】
【発明の効果】
以上のように、本発明に係る支持手段によれば、床基盤に降下箇所が生じたとしても、高さ調節部材とそれと螺合する部材とを固定する接着剤を外すことなく、高さ調節部材を回転させるだけで受座や床下地材の高さを調節することができる。このように、高さ調節部材とそれと螺合する部材との接着剤を外さなくて済むことで、受座や床下地材の高さ調節作業の際に、床下地材の上に固定した床表面仕上げ材を床下地材から外さなくて済み、作業費用と作業時間を大幅に低減することができる。
【００２６】
高さ調節部材の雄螺子の外表面に、その外面の軸方向に対してやや傾斜した方向に接着剤を通過させるための複数の溝を形成することで、その溝に接着剤を流し込むことで、雄螺子と雌螺子との接着をより確実にかつ簡単に行うことができる。
また、下部台座の下面を部分球面状のものとして、床基盤と下部台座の下面との間を接着剤で固定することによって、上面に斜めの勾配があったり凹凸があったりする木材を床基盤とした場合でも、支持軸を鉛直状態に設置することができ、受座の上面及び床下地材の上面を水平にすることができる。
【図面の簡単な説明】
【図１】本発明に係る二重床の支持手段で床基板と床下地剤とを固定した状態を示す断面図である。
【図２】本発明に使用する高さ調節部材と第一雌螺子部材との螺合状態を示す断面図である。
【図３】本発明に使用する高さ調節部材と第二雌螺子部材との螺合状態を示す断面図である。
【図４】本発明に使用する高さ調節部材の平面図である。
【図５】従来の二重床の支持手段の断面図である。
【図６】従来の二重床の支持手段の分解斜視図である。
【符号の説明】
１０ 床基盤
１２ 下部台座
１６ 第一雌螺子部材
１８ 雌螺子
２２ 下面
２３ 接着剤
２４ 高さ調節部材
２６ 下部側雄螺子
３０ 上部側雄螺子
３４ 溝
３６ 液滴れ止め部材
３８ 上部台座
４２ 上部鍔部
４４ 下部鍔部
４８ 受座
５０ 第二雌螺子部材
５２ 雌螺子
５６ 床下地材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a double floor support means for supporting an upper floor above a floor base.
[0002]
[Prior art]
In an apartment house, office building, or the like, a so-called double floor in which an upper floor is disposed above a floor base is used in order to enhance soundproofing performance and facilitate piping and wiring under the floor. A conventional double floor is disclosed in Patent Document 1, and the conventional double floor is shown in FIGS. The double floor is provided with a number of support means 72 on the floor base 70, and the upper support (in FIG. 5 and FIG. 6, a floor base material which is a part of the constituent members of the upper floor). 74 is indicated). The support means 72 includes a lower pedestal 76 placed on the floor base 70, a support leg 78 rotatably provided on the lower pedestal 76, and an upper pedestal mounted on the upper portion of the support leg 78. 80 and a seat 82 mounted on the upper pedestal 80. The support leg 78 includes a lower rod portion 84 and an upper male screw 86, and the rod portion 84 is fitted to the lower pedestal 76 so as to be freely rotatable. The upper pedestal 80 includes a cylindrical portion 88, a flange portion 90 extending outward at one end thereof, and a female screw 92 formed inside the cylindrical portion 88. The male screw 86 of the support leg 78 and the female screw 92 of the cylindrical portion 88 of the upper pedestal 80 are set in a screwed state.
[0003]
When making a double floor, first, each lower pedestal 76 is fixed on the floor base 70 with an adhesive. Next, the receiving seat 82 is placed on the flange portion 90 of the upper pedestal 80, and the supporting leg 78 is rotated while being screwed to the upper pedestal 80 while holding the upper pedestal 80 and the receiving seat 82. Thus, the upper pedestal 80 and the receiving seat 82 move up and down with respect to the support legs 78 (the floor base 70). By adjusting the height of the upper pedestal 80 with respect to the support leg 78, the upper surface of each receiving seat 82 is adjusted to the same horizontal plane. The floor base material 74 is placed on a number of receiving seats 82 on the same horizontal plane, and then the receiving seat 82 and the floor base material 74 are fixed by fixing means 94 such as nails.
[0004]
At the screwing portion between the male screw 86 of the support leg 78 and the female screw 92 of the upper pedestal 80, rattling or loosening occurs over time due to vibration of the upper floor or the like. For this reason, when the height of the upper pedestal 80 with respect to the support leg 78 is determined, an adhesive is poured into a threaded portion between the support leg 78 and the female screw 92 to fix the support leg 78 and the upper pedestal 80. At this time, a through-hole 96 is formed in the floor base material 74 in advance so that the adhesive can be poured from above the floor base material 74 to the screwing portion between the support leg 78 and the female screw 92, and the receiving seat 82 is formed. , A through hole 98 is formed. As a result, the height of the upper pedestal 80 with respect to the support legs 78 does not change, and the floor base material 74 can maintain the initially set horizontal state. After setting the floor base material 74 in a horizontal state, a floor surface finishing material (not shown) such as a flooring material, a wooden floor, or a floor tile is placed on the floor base material 74, and the floor base material 74 and the floor surface The finishing material is fixed with fixing means (not shown).
[0005]
[Patent Document 1]
Japanese Utility Model Registration No. 2583184 (FIGS. 1 and 15)
[0006]
[Problems to be solved by the invention]
When the building is an apartment or a building, for example, the floor base 70 is generally made of reinforced concrete, so that the floor base 70 itself does not curve. However, when the building is, for example, a built house such as a construction shop, the soil located below the concrete floor base 70 may not be sufficiently consolidated or solidified. A part of the base 70 descends or curves in the direction of depression. When the floor base 70 descends or curves, the floor base material 74 fixed and supported by the support means 72 also descends, causing the floor surface finishing material fixed thereon to undulate. I was
[0007]
When adjusting the support means 72 at the position where the floor base 70 is lowered, the worker enters the space between the floor base 70 and the floor base material 74 and rotates the support leg 78 so that the male screw 86 of the support leg 78 can be adjusted. The adhesive at the screwing position between the screw and the female screw 92 of the cylindrical portion 88 of the upper pedestal 80 is removed. Thereafter, the support legs 78 are further rotated, and the receiving seat 82 and the floor base material 74 are raised with respect to the support legs 78 to adjust their heights so that the floor surface finishing material does not wavy. After adjusting the heights of the receiving seat 82 and the floor base material 74, bonding is performed in order to prevent rattling or loosening of a screwed portion between the male screw 86 of the support leg 78 and the female screw 92 of the upper pedestal 80. The screwed portion between the male screw 86 and the female screw 92 from which the screw has been removed must be fixed again with an adhesive.
[0008]
However, the threaded portion between the male screw 86 of the support leg 78 and the female screw 92 of the upper pedestal 80 is closed from an operator who has entered between the floor base 70 and the floor base material 74. However, the worker cannot pour the adhesive into the threaded portion between the male screw 86 and the female screw 92. For this reason, the floor surface finishing material fixed to the floor base material 74 is removed to obtain the state shown in FIG. 5, and in this state of FIG. 5, the male screw 86 is inserted through the through hole 96 of the floor base material 74 and the through hole 98 of the receiving seat 82. It is necessary to perform an operation of pouring an adhesive into a screwing portion between the screw and the female screw 92. The work of removing the floor surface finishing material from the floor base material 74 has a disadvantage that it takes time and cost. Further, there is a possibility that the floor surface finishing material may be damaged.
[0009]
Wood is used for the floor base 70 on the second floor or higher of the wooden building. In the case of a floor base 70 using wood, the upper surface of the floor base 70 is often not horizontal because of an oblique slope or unevenness on the upper surface. Further, the lower surface of the lower pedestal 76 has a planar shape conventionally. For this reason, in the case of the floor base 70 using wood, it is difficult to hold the axial center of the support leg 78 vertically, and as a result, the upper surface of the receiving seat 82 and the upper surface of the floor base material 74 are made horizontal. There was a problem that it was not possible.
[0010]
The present invention has been made in view of the above points, and has a double-floor support means capable of adjusting the height of an upper floor without removing an adhesive at a fixed portion by an adhesive between a male screw and a female screw. The purpose is to provide.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a supporting means according to the present invention comprises a height adjusting member integrally formed with a lower first screwing means and an upper first screwing means, and a lower pedestal mounted on a floor base. The lower second screwing means for screwing with the lower first screwing means, the upper pedestal for supporting a seat or a floor base material, and the upper pedestal An upper second screwing means for screwing the upper first screwing means with the upper first screwing means, the upper first screwing means being rotatable with respect to the first first screwing means. And the upper second screwing means are bonded with an adhesive.
[0012]
The present invention provides that either one of the upper first screwing means and the upper second screwing means is a male screw and the other is a female screw, and the outer surface of the male screw is in a direction parallel to a central axis. The groove is formed in a direction slightly inclined in the direction in which the screw advances. In the present invention, the upper first screwing means is a male screw, and a liquid drop prevention member is provided around the lower end of the male screw so as to prevent the adhesive from flowing downward therefrom. It is. In the present invention, an upper flange portion and a lower flange portion sandwiching the support plate vertically are formed on the upper pedestal. In addition, the present invention further comprises a bottom surface of the lower pedestal having a partially spherical shape, and the bottom surface of the lower pedestal and the floor base are bonded with an adhesive.
[0013]
[Action]
There is a height adjusting member which is screwed to a lower pedestal placed on the floor base and changes the height with respect to the lower pedestal. An upper first screwing means is formed above the height adjusting member, and an upper second screwing means is screwed with the upper first screwing means. An annular support plate protruding outward is formed on the outer wall of the upper second screwing means. An upper pedestal for supporting a seat or a floor base material is placed on the support plate, and the support plate and the upper pedestal are rotatable relative to each other. The screw portion of the upper first screwing means of the height adjusting member and the upper second screwing means to be screwed thereto is bonded with an adhesive. Since the screwing portions of the upper side first screwing means and the upper side second screwing means of the height adjusting member are bonded with an adhesive, the height of the seat and the floor base material is adjusted (raised). At this time, when the height adjusting member is rotated with respect to the lower pedestal, the upper second screwing means is rotated upward together with the height adjusting member, and the upper portion is placed on the upper second screwing means. Raise the pedestal and consequently raise the seat or flooring. Thus, the height of the seat or the floor base material can be adjusted, and the floor surface finishing material can be held flat. At this time, since it is not necessary to remove the adhesive at the screwing point between the upper first screwing means and the upper second screwing means, it is not necessary to remove the floor surface finishing material from the floor base material, which is more than before. Work costs and work time can be reduced.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the present invention will be described with reference to the drawings.
FIG. 1 is a sectional view showing a double-floor support means according to the present invention. The support means for a double floor according to the present invention includes a lower pedestal 12 in contact with the floor base 10, a rod-shaped support shaft 14 fixed to the upper portion of the lower pedestal 12, and a lower side fixed to the upper portion of the support shaft 14. And a cylindrical female screw member 16 as second screwing means. A female screw 18 is formed on the inner wall of the female screw member 16, and a flange 20 extending outward is integrally formed at the upper end of the female screw member 16. The bottom surface 22 of the lower pedestal 12 may be flat, but may be partially spherical as shown in FIG. When the bottom surface 22 of the lower pedestal 12 has a partially spherical shape, an adhesive 23 is interposed between the partially spherical bottom surface 22 and the floor base 10 to bond the lower pedestal 12 and the floor base 10 together. Fix with agent 23. When fixing the lower pedestal 12 to the floor base 10 with the adhesive 23, the support shaft 14 and the cylindrical female screw member 16 are held in a vertical state. The support shaft 14 may be omitted, and the female screw member 16 may be directly fixed to the lower pedestal 12.
[0015]
The supporting means according to the present invention further has a height adjusting member 24. The height adjusting member 24 includes a lower male screw 26 serving as a lower first screwing means, a rotation engaging portion 28, and an upper male screw 30 serving as an upper first screwing means. Are integrally formed. The lower male screw 26 as the lower first screwing means is screwed with the female screw 18 as the lower second screwing means formed on the female screw member 16. Before screwing the lower male screw 26 and the female screw 18 of the female screw member 16, the nut 32 is screwed into the lower male screw 26 first, and then the lower male screw 26 is connected to the female screw member 16. It is screwed into the female screw 18. The height adjusting member 24 can change the height with respect to the female screw member 16. A tool such as a wrench is engaged with the rotation engaging portion 28 of the height adjusting member 24, and the height adjusting member is By rotating 24, the height of height adjusting member 24 with respect to female screw member 16 can be changed. When the height of the height adjusting member 24 with respect to the female screw member 16 is determined, the nut 32 is moved until it comes into contact with the flange 20 of the female screw member 16. As a result, the lower male screw 26 of the height adjusting member 24 is fixed by the double nut of the female screw 18 and the nut 32 of the female screw member 16, and the displacement of the height adjusting member 24 with respect to the female screw member 16 is shifted. Can be prevented.
[0016]
On the outer surface of the upper male screw 30 of the height adjusting member 24, a plurality of grooves 34 for allowing the adhesive to pass therethrough in a direction slightly inclined from a direction parallel to the central axis of the upper male screw 30 (FIGS. 1, 1). 3 and 4) are formed. The traveling direction of the groove 34 is formed in a direction slightly inclined from the direction parallel to the central axis to the direction in which the screw advances. An annular dish-shaped droplet retaining member 36 is provided on the outer periphery of the lower end of the upper male screw 30. The droplet retaining member 36 receives the adhesive dropped through the groove 34 and prevents the adhesive from flowing down.
[0017]
The support means according to the present invention has an upper pedestal 38. As shown in FIGS. 1 and 3, the upper pedestal 38 includes a cylindrical portion 40, an upper flange portion 42 extending outward from the lower end of the cylindrical portion 40, and a lower flange spaced from the upper flange portion 42. It comprises a portion 44 and a cylindrical connecting member 46 that connects the outer edge of the upper flange portion 42 and the outer edge of the lower flange portion 44. The upper flange portion 42 supports a seat 48 (similar to the seat 82 in FIG. 6) thereon. A through hole 49 is formed in the center of the seat 48, and the seat 48 is fitted to the tubular portion 40 of the upper flange 42 by fitting the through hole 49 of the seat 48 to the upper flange of the upper base 38. Put on the part 42.
[0018]
The support means according to the present invention further has a female screw member 50. As shown in FIGS. 1 and 3, the female screw member 50 has a cylindrical shape, and a female screw 52 as an upper second screwing means is formed over the entire area of the cylindrical inner wall in the axial direction. The female screw 52 of the female screw member 50 is screwed to the upper male screw 30 of the height adjusting member 24. An annular support plate 54 extending outward is integrally formed on the outer wall at the center of the height of the cylindrical female screw member 50. The support plate 54 is mounted with a gap provided below the height between the upper flange portion 42 and the lower flange portion 44 of the upper pedestal 38. In this state, the upper flange 42 of the upper pedestal 38 is placed on the support plate 54 of the female screw member 50. By sandwiching the support plate 54 with a gap between the upper flange portion 42 and the lower flange portion 44, the upper pedestal 38 does not come off from the female screw member 50 when assembling the support means of the present invention. good.
[0019]
After supporting the upper flange 42 of the upper pedestal 38 with the support plate 54 of the female screw member 50, the receiver 48 is placed on the upper flange 42 of the upper pedestal 38, and the floor base material 56 is placed on the receiver 48. And fix them with fixing means 58 such as nails. Note that the floor base material 56 may be directly placed on the upper flange portion 42 instead of the seat 48, but it is desirable that the seat 48 be mounted. A through hole 60 is formed in the floor base material 56 so that an adhesive can be poured into a screwing portion between the upper male screw 30 and the female screw 52 of the female screw member 50.
[0020]
Here, in the present invention, a case where the upper surface of the receiving seat 48, that is, the upper surface of the floor base material 56 is adjusted to a uniform height will be described. First, the floor base 10 and the lower pedestal 12 are fixed with an adhesive 23, with the bottom surface 22 of the lower pedestal 12 having a partially spherical shape. Thus, even when the floor base 10 is made of wood having an oblique slope or unevenness on the upper surface, the support shaft 14 and the cylindrical female screw member 16 can be installed in a vertical state, and the receiving seat 48 can be provided. And the upper surface of the floor base material 56 can be made horizontal. In the present invention, the bottom surface 22 of the lower pedestal 12 does not necessarily have to be partially spherical.
[0021]
Next, the lower male screw 26 is screwed into the female screw 18 of the female screw member 16 to adjust their relative positions, and the female screw 52 of the cylindrical portion 40 of the upper pedestal 38 is fitted with the height adjusting member 24. The upper side male screws 30 are screwed together to adjust their relative positions. The height of the upper surface of the receiving seat 48 (the height of the upper surface of the floor base material 56) is determined by adjusting these two screw locations. After determining the height of the upper surface of the receiving seat 48 (the height of the upper surface of the floor base material 56), it is bonded to the groove 34 of the upper male screw 30 of the height adjusting member 24 from the through hole 60 of the floor base material 56. Pour the agent. The adhesive that has flowed into the groove 34 of the upper male screw 30 permeates from the groove 34 into a threaded portion between the female screw 52 of the tubular portion 40 of the upper pedestal 38 and the upper male screw 30 of the height adjusting member 24. Then, the screwed portion is fixed so as not to be loosened. Excess adhesive of the adhesive poured into the groove 34 is received by the droplet retaining member 36 so as not to flow downward. After fixing the height adjusting member 24 and the upper pedestal 38 with an adhesive, a floor surface finishing material (not shown) is placed on the floor substrate 56, and the floor substrate 56 and the floor surface finishing material are fixed by known fixing means. Fix to complete the double floor.
[0022]
The adjustment of the height by the support means of the present invention when the floor substrate 10 is lowered or curved indentation will be described. The operator enters the space between the floor base 10 and the floor base material 56, first turns the nut 32 to raise the nut 32 with respect to the lower male screw 26, and moves the height adjusting member 24 to the female screw member 16. Make it rotatable. Thereafter, a tool such as a wrench is engaged with the rotation engaging portion 28 of the height adjusting member 24, and the height adjusting member 24 is raised while rotating with respect to the female screw member 16. At this time, since the height adjusting member 24 and the female screw member 50 are kept fixed by the adhesive, the female screw member 50 and the support plate 54 formed integrally therewith rise while rotating. The support plate 54 rises while being in contact with the upper flange portion 42 of the upper pedestal 38, and raises the upper pedestal 38. Thereby, the receiving seat 48 and the floor base material 56 supported by the upper flange 42 of the upper pedestal 38 also rise. As a result, even if the floor substrate 10 is lowered or bent, the height of the seat 48 and the floor base material 56 can be adjusted only by rotating the height adjusting member 24. After the height adjustment is completed, the nut 32 is turned to make contact with the female screw member 16.
[0023]
In the present invention, it is not necessary to remove the adhesive fixing the upper male screw 30 of the height adjusting member 24 and the female screw 52 of the female screw member 50. As a result, while the work of removing the floor surface finishing material placed on the floor base material 56 and pouring the adhesive again is conventionally required, in the present invention, the floor surface finishing material placed on the floor base material 56 is required. The operation of removing the material can be omitted.
[0024]
In the above description, the lower first screwing means and the upper first screwing means of the height adjusting member 24 are male screws, and the lower second screwing means and the upper second screwing means Was described as a female screw. On the contrary, the lower first screwing means and the upper first screwing means of the height adjusting member 24 are female screws, and the lower second screwing means and the upper second screwing means are male screws. It is good.
[0025]
【The invention's effect】
As described above, according to the support means of the present invention, even if a descent point occurs on the floor base, the height adjustment member can be adjusted without removing the adhesive fixing the member screwed to the height adjustment member. By simply rotating the member, the height of the seat and the floor base material can be adjusted. By eliminating the need for removing the adhesive between the height adjusting member and the member to be screwed with the height adjusting member, the floor fixed on the floor base material during the height adjustment work of the seat or the floor base material can be eliminated. Since the surface finishing material does not have to be removed from the flooring material, the operation cost and operation time can be significantly reduced.
[0026]
By forming a plurality of grooves on the outer surface of the male screw of the height adjusting member to allow the adhesive to pass in a direction slightly inclined with respect to the axial direction of the outer surface, the adhesive is poured into the grooves. The bonding between the male screw and the female screw can be performed more reliably and easily.
In addition, by making the lower surface of the lower pedestal a partially spherical surface and fixing the floor base and the lower surface of the lower pedestal with an adhesive, wood with an oblique slope or unevenness on the upper surface can be used as the floor base. Even in this case, the support shaft can be installed vertically, and the upper surface of the receiving seat and the upper surface of the floor base material can be made horizontal.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a floor substrate and a floor base material are fixed by a double floor support means according to the present invention.
FIG. 2 is a cross-sectional view showing a screwed state of a height adjusting member and a first female screw member used in the present invention.
FIG. 3 is a sectional view showing a screwed state of a height adjusting member and a second female screw member used in the present invention.
FIG. 4 is a plan view of a height adjusting member used in the present invention.
FIG. 5 is a cross-sectional view of a conventional double floor support means.
FIG. 6 is an exploded perspective view of a conventional double-floor support means.
[Explanation of symbols]
Reference Signs List 10 floor base 12 lower pedestal 16 first female screw member 18 female screw 22 lower surface 23 adhesive 24 height adjusting member 26 lower male screw 30 upper male screw 34 groove 36 droplet retaining member 38 upper pedestal 42 upper flange 44 Lower flange portion 48 Receiving seat 50 Second female screw member 52 Female screw 56 Floor base material
