JP4132537B2

JP4132537B2 - Auxiliary cover structure for expansion joint device

Info

Publication number: JP4132537B2
Application number: JP2000028262A
Authority: JP
Inventors: 盛剛新崎
Original assignee: 株式会社日本アルミ
Priority date: 2000-02-04
Filing date: 2000-02-04
Publication date: 2008-08-13
Anticipated expiration: 2020-02-04
Also published as: JP2001220830A

Description

【０００１】
【発明の属する技術分野】
本発明は、目地空間を挟んで隣接する２つの建物の各通路間を接続する床用伸縮継手カバーと、壁用伸縮継手カバーとの間の床壁取合い部に生じる床側の開口を塞ぐ伸縮継手装置の補助カバー構造に関する。
【０００２】
【従来の技術】
典型的な従来の技術は、特開平１０−１４０６７３号公報に示されている。この従来の技術では、目地空間を挟んで隣接する２つの建物の各通路間を、各通路の床と床とにわたって設けられる床用伸縮継手カバーと、各通路の壁と壁とにわたって設けられる壁用伸縮継手カバーとによって接続し、急激な地震などに起因する各建物の水平変位のうち相対的に近接／離反する見込み方向の変位および前記見込み方向に垂直な間口方向の変位を許容することができるように構成されている。
【０００３】
前記床用伸縮継手カバーには、各床に目地空間寄りで固定される縁材である下地レールと、各下地レールに摺動可能に支持される目地プレートと、目地プレートの前記見込み方向両側部上に配置され、基端部が各下地レールに固定される一対の側部カバーと、目地プレートの前記間口方向両端部付近に設けられ、各建物の前記見込み方向の変位によって床用伸縮継手カバーと壁用伸縮継手カバーとの間の床壁取合い部に発生する開口を塞ぐ床補助カバーとが設けられる。この床補助カバーは、目地プレートの端部寄りの中央部に設けられるばね付勢機構によって間口方向外方へ突出するようにばね付勢されるとともに、基端部が下地レールに係止されるばねによって見込み方向両側にばね付勢されている。床補助カバーを目地カバープレートから外方へばね付勢する付勢手段は、前記目地プレートの支持枠の中央端部に固定されるガイド筒と、このガイド筒内に収納されるばねと、このばねによってガイド筒から押出す方向にばね付勢されるスライド軸と、スライド軸の先端部を床補助カバーの支持枠の外側中央部に枢支する枢支ピンとを有する。
【０００４】
このような構成によって、地震などに起因して各建物が間口方向へ相対的に変位しても、一方の床補助カバーを付勢手段のばね力に抗して目地カバープレート内へ退避させるとともに、他方の床補助カバーを前記付勢手段によって目地カバープレートから突出する方向に押出し、目地プレートと壁との間の隙間の発生を防止することができる。
【０００５】
【発明が解決しようとする課題】
このような従来の技術では、各床補助カバーを目地カバープレートから外方へ突出する方向にばね付勢しているため、この付勢手段の前記ガイド筒が連結されるパンタグラフ状のリンク機構に大きな反力が作用するため、前記リンク機構を大きな強度を有する構成としなければならない。しかも各床補助カバーおよび目地プレートには補強のために支持枠が固定されており、構成が複雑化するとともに大形化し、部品点数が多くなり、組立性が悪く、製造コストが高価であるという問題がある。また前記付勢手段は、床補助カバーを押出す方向にばね付勢するので、床補助カバーの押出し量が増加するにつれてばね力が減少し、したがって各建物の前記間口方向への変位が大きくなるほど床補助カバーの押出し力は弱くなり、押出し限界位置が不揃いになりやすく、確実に壁とねじカバーとの間の開口を塞ぐことができないという問題がある。
【０００６】
本発明の目的は、構成を簡略化し、確実に床壁取合い部の床側に発生する開口を塞ぐことができるようにした伸縮継手装置の補助カバー構造を提供することである。
【０００７】
【課題を解決するための手段】
請求項１記載の本発明は、目地空間を挟んで隣接する２つの建物の各通路間を、各通路の床と床とにわたって設けられる床用伸縮継手カバーと、各通路の壁と壁とにわたって設けられる壁用伸縮継手カバーとによって、各建物の水平変位のうち相対的に近接／離反する見込み方向の変位および前記見込み方向に垂直な間口方向の変位を許容し得る状態で接続し、
床用伸縮継手カバーの前記間口方向の両端部付近には、各建物の前記見込み方向の変位によって床用伸縮継手カバーと壁用伸縮継手カバーとの間の床壁取合い部に発生する開口を塞ぐ床補助カバーが設けられ、
各床に固定される各縁材の前記間口方向両端部寄りに、前記床補助カバーに間口方向の内側から係合して、その床補助カバーを移動可能に支持する係合支持手段を設け、
前記床補助カバーを、各縁材間のほぼ中央部に維持して、前記間口方向の内側へばねによってばね付勢することを特徴とする伸縮継手装置の補助カバー構造である。
【０００８】
本発明に従えば、目地空間を挟んで隣接する２つの建物の各通路間は、床用伸縮継手カバーと壁用伸縮継手カバーによって接続される。これらの床用伸縮継手カバーおよび壁用伸縮継手カバーは、各建物が急激な地震などに起因して変位したとき、その変位の水平変位に対して、相対的に近接／離反する見込み方向の変位および前記見込み方向に垂直な間口方向の変位を許容し、各通路間を通行可能な状態に維持することができる。
【０００９】
このような床用伸縮継手カバーと壁用伸縮継手カバーとが構成する床壁取合い部には、各建物が前記間口方向に相対的に変位したとき、床側に開口が発生するため、この開口を塞ぐために、前記床用伸縮継手カバーには床補助カバーが設けられる。また各床に固定される各縁材には、間口方向両端部寄りに係合支持手段が設けられる。この係合支持手段は、床補助カバーに間口方向の内側から係合して、床補助カバーを移動可能に支持する。この状態で、床補助カバーは、ばねによって各縁材間の中央部に維持され、間口方向の内側へばね付勢される。
【００１０】
各建物が急激な地震などによって間口方向への相対的変位を生じると、床補助カバーは係合支持手段によって各建物の間口方向の相対的変位に追従して、前記ばねのばね力に抗して回動し、床用伸縮継手カバーと壁用伸縮継手カバーとの間の床壁取合い部の床側に発生する開口を塞いだ状態に維持することができる。
【００１１】
このように床補助カバーは、常にばねによって間口方向の内側にばね付勢された状態で、係合支持手段が前記間口方向内側から係合した状態で支持されるので、常に床用伸縮継手カバーと壁用伸縮継手カバーとの間の床壁取合い部の開口を塞ぐ位置に前記床補助カバーを配置することができ、簡単な構成で確実に前記開口を塞ぐことができる。特に、床補助カバーは、係合支持手段によって間口方向の内側から係合した状態で、ばねによって間口方向の内側へばね付勢されるので、前記従来の技術に関連して述べたように、各建物の間口方向への変位が大きくなるにつれて床補助カバーの押出し力が弱くなり、床補助カバーの押出し限界位置が不揃いになって確実に開口を塞ぐことができない、という問題が生じない。
【００１２】
【発明の実施の形態】
図１は、本発明の実施の一形態の伸縮継手装置の床補助カバー構造を示す水平断面図である。目地空間１を挟んで隣接する２つの建物２ａ，２ｂの各通路３ａ，３ｂ間は、各通路３ａ，３ｂの床４ａと床４ｂとにわたって設けられる床用伸縮継手カバー５と、各通路３ａ，３ｂの壁６ａ，６ｂとにわたって設けられる壁用伸縮継手カバー７とを含む伸縮継手装置によって、各建物２ａ，２ｂの水平変位のうち、相対的に近接／離反する見込み方向Ａおよび前記見込み方向Ａに垂直な間口方向Ｂの変位を許容し得る状態で接続される。
【００１３】
床用伸縮継手カバー５の前記間口方向Ｂの両端部付近には、各建物２ａ，２ｂの前記見込み方向Ａの変位によって、床用伸縮継手カバー５と壁用伸縮継手カバー７との間の床壁取合い部８に発生する開口９を塞ぐ床補助カバー１０が設けられる。なお、図１においては、図解を容易にするため、片側の床壁取合い部８の床補助カバー構造だけが示され、前記開口９は多数の点によって領域を示し、床補助カバー１０は平行な複数の破線によって配置領域が示されている。
【００１４】
図２は、床補助カバー１０の取付け状態を示す斜視図であり、図３は図１の切断面線ＩＩＩ−ＩＩＩから見た断面図である。上記のように構成される床壁取合い部８の床補助カバー構造において、各床６ａ，６ｂに固定される各縁材１１ａ，１１ｂの前記間口方向Ｂ両端部寄りには、前記床補助カバー１０に間口方向Ｂの内側、すなわち図１および図３の右側から係合して、その床補助カバー１０を移動可能に支持する係合支持手段１２ａ，１２ｂと、床補助カバー１０を各縁材１１ａ，１１ｂ間のほぼ中央部に位置して前記間口方向Ｂの内側、すなわち図１および図３の右側へばね付勢する引張ばね１３ａ，１３ｂとが設けられる。
【００１５】
前記床補助カバー１０は、水平に配置される平坦状の上板１４と、上板１４の周縁部から下方にほぼ直角に屈曲して連なる周壁１５とを有し、たとえばステンレス鋼板を切断および曲げ加工して形成される。周壁１５は、上板１４の長手方向に垂直な幅方向両端部から下方に直角に屈曲して連なり、前記長手方向に沿って平行に延びる第１および第２周壁部分１６ａ，１６ｂと、第１周壁部分１６ａの長手方向両端部に連なり、第１周壁部分１６ａの延長線に対して４５°の角度を成して長手方向に相互に離反するにつれて第２周壁部分１６ｂの延長線に近接する方向に傾斜する第３および第４周壁部分１６ｃ，１６ｄと、第３および第４周壁部分１６ｃ，１６ｄの前記長手方向に最も離れた各端部に屈曲して連なり、長手方向に垂直な仮想鉛直面に沿って相互に平行に延びる第５および第６周壁部分１６ｅおよび１６ｆと、第２周壁部分１６ｂの長手方向両端部に屈曲して連なり、前記長手方向に沿って相互に離反するにつれて第１周壁部分１６ａの延長線に近接する方向に傾斜する第７および第８周壁部分１６ｇおよび１６ｈとを有する。
【００１６】
第７および第８周壁部分１６ｇ，１６ｈは、第２周壁部分１６ｂの延長線に対して角度４５°を成して傾斜し、相互に直角に構成する各仮想鉛直面に沿って形成される。第５周壁部分１６ｅと第７周壁部分１６ｇとの交差部ｃ１には、前記一方の引張ばね１３ａの一端部が係止される。第６周壁部分１６ｆと第８周壁部分１６ｈとの交差部ｃ２には、前記他方の引張ばね１３ｂの一端部が係止される。各引張ばね１３ａ，１３ｂの各他端部は、縁材１１ａ，１１ｂの折返し部分２１ａ，２１ｂに、前記見込み方向Ａに平行に配置された床補助カバー１０の引張ばね１３ａ，１３ｂの各一端部が係止される前記各交差部を通る延長線ｍよりも間口方向Ｂ中央寄り（図１および図３の右寄り）の係止部ｃ３，ｃ４でそれぞれ係止される。
【００１７】
このように設けられる各引張ばね１３ａ，１３ｂによって、床補助カバー１０の長手方向両端部が間口方向Ｂの内側、すなわち図１および図３の右側にばね付勢され、各ばね１３ａ，１３ｂの見込み方向Ａへのばね力成分Ｆ１，Ｆ２によって、床補助カバー１０は常に各縁材１１ａ，１１ｂ間の見込み方向Ａのほぼ中央部に配置される。
【００１８】
前記係合支持手段１２ａ，１２ｂは、床補助カバー１０の上板１４を下方から移動可能に支持するボールキャスタ２２と、ボールキャスタ２２が上部に連結され、下部が縁材１１ａ，１１ｂに溶接して固定されるローラキャスタ２３とを有する。ボールキャスタ２２は、球状の案内ボール２４と、この案内ボール２４を回動自在に支持するホルダ２５とを有する。またローラキャスタ２３は、鉛直な回転軸線まわりに回転自在な案内ローラ２６と、案内ローラ２６を前記鉛直な回転軸線まわりに軸支するブラケット２７とを有する。ブラケット２７の上部には、前記ホルダ２５が固定され、案内ローラ２６の外周部はブラケット２７から突出し、前述したように床補助カバー１０の第１周壁部分１６ａの内面に当接している。
【００１９】
このような係合支持手段１２ａ，１２ｂによって、前記床補助カバー１０は見込み方向Ａおよび間口方向Ｂに移動自在に支持され、間口方向Ｂに関しては内方への変位、すなわち各床補助カバー１０が相互に近接する方向への変位が阻止されている。
【００２０】
図４は、床用伸縮継手カバー５の具体的構成を示す鉛直断面図である。前記床用伸縮継手カバー５は、各床４ａ，４ｂの前記目地空間１を挟んで対向する対向壁面内に埋め込まれた図４の紙面に垂直に長手の埋込みファスナ３１ａ，３１ｂの上部寄りに溶接して固定される一対の上段支持片３２ａ，３２ｂと、各埋込みファスナ３１ａ，３１ｂに前記上段支持片３２ａ，３２ｂの下方で溶接して固定される下段支持片３３ａ，３３ｂと、上段支持片３２ａ，３２ｂの背後で各埋込みファスナ３１ａ，３１ｂの上面３５ａ，３５ｂに溶接して固定される一対の内取付片３６ａ，３６ｂと、床４ａ，４ｂの上面３４ａ，３４ｂ上に前記内取付片３６ａ，３６ｂよりも見込み方向Ａの両側方でアンカーボルト３７ａ，３７ｂによって各床４ａ，４ｂに固定される外取付片３８ａ，３８ｂと、各対を成す内取付片３６ａ，３６ｂおよび外取付片３８ａ，３８ｂに各長手方向両端部がそれぞれ固定され、図４の紙面に垂直な間口方向Ｂに間隔をあけて設けられる補強部材３９ａ，３９ｂと、上段支持片３２ａ，３２ｂおよび補強部材３９ａ，３９ｂに支持された状態で固定される前記縁材１１ａ，１１ｂと、各縁材１１ａ，１１ｂに見込み方向Ａ両側部が移動可能に支持される中央パネル４１と、各縁材１１ａ，１１ｂに固定され、中央パネル４１の両側部を上方から覆う一対の側部カバー４２ａ，４２ｂと、中央パネル４１を各建物２ａ，２ｂの水平変位の方向に拘わらず常に各縁材１１ａ，１１ｂ間の中央部に保持して、各建物２ａ，２ｂの見込み方向Ａおよび間口方向Ｂの変位を許容し、パンタグラフ状のリンク機構によって実現される複数の中央保持手段４３とを含む。
【００２１】
前記中央保持手段４３は、その両端部がピンボルト４７ａ，４７ｂによって下段支持片３３ａ，３３ｂに枢支され、中央部がピンボルト４８によって中央パネル４１の幅方向中央部に枢支される。これらのピンボルト４７ａ，４７ｂ，４８の各軸線は、略鉛直方向に延び、相互に平行である。
【００２２】
中央パネル４１の見込み方向Ａ両側部には、中央パネル４１を各縁材１１ａ，１１ｂ上で円滑に移動可能に支持するボールキャスタ４４ａ，４４ｂが図４の紙面に垂直な方向に間隔をあけて複数対設けられ、このような中央パネル４１の間口方向Ｂ両端部付近に、前述の床補助カバー１０、係合支持手段１２ａ，１２ｂ、引張ばね１３ａ，１３ｂが見込み方向Ａに向って左右対称に設けられる。前述の図１では、図解を容易にするため、屋外４５側に設けられる床補助カバー１０およびその付近だけが示されている。
【００２３】
各埋込みファスナ３１ａ，３１ｂの下端部には、可撓性を有するたとえばゴムから成る止水シート４６の幅方向両端部が固定される。この状態では、各建物２ａ，２ｂが急激な地震などによって相対的に近接／離反する見込み方向Ａの変位が生じていない状態で、下方に凸に湾曲し、かつ図４の紙面に垂直手前側から奥行き方向に排水勾配を有し、下方への雨水の落下が防がれている。
【００２４】
再び図１を参照して、前記壁用伸縮継手カバー７は、各内壁５１ａ，５１ｂにヒンジ５２ａ，５２ｂによって鉛直軸線まわりに角変位可能に連結される内壁カバー５３と、各外壁５４ａ，５４ｂにヒンジ５５ａ，５５ｂによって、鉛直軸線まわりに角変位自在に連結される外壁カバー５６とを有する。
【００２５】
内壁カバー５３は、各ヒンジ５２ａ，５２ｂに鉛直な軸線まわりに角変位可能に連結され、図１の紙面に垂直な方向に長手の一対の案内カバー５７ａ，５７ｂと、各案内カバー部５７ａ，５７ｂに連結され、パンタグラフ状のリンク機構によって実現される伸縮保持手段５８と、伸縮保持手段５８の中央部にばね５９およびボルト６０によって前記伸縮保持手段５８に近接する方向に弾発的に引寄せられた状態で保持される内壁中央パネル６１とを有する。
【００２６】
このような内壁カバー５３の屋外４５側には、前記外壁カバー５６が設けられる。この外壁カバー５６は、各ヒンジ５５ａ，５５ｂに連結され、パンタグラフ状のリンク機構によって実現される伸縮保持手段６４と、一方の外壁５４ｂに設けられるヒンジ６５によって角変位自在に連結される外壁中央パネル６６と、外壁中央パネル６６を間口方向Ｂの内方、すなわち図１の右方に弾発的に引張ってばね付勢する引張ばね６７とを有する。
【００２７】
図５は、各建物２ａ，２ｂの変位に伴う床補助カバー１０の動作を示す平面図であり、図５（１）は各建物２ａ，２ｂが変位していないときの床補助カバー１０の状態を示し、図５（２）は各建物２ａ，２ｂが最も離間しかつ間口方向Ｂへずれたときの床補助カバー１０の状態を示し、図５（３）は各建物２ａ，２ｂが最も近接しかつ間口方向Ｂへずれたときの床補助カバー１０の状態を示す。
【００２８】
図５（１）に示されるように、各建物２ａ，２ｂが水平変位を生じていない状態では、床補助カバー１０は各通路３ａ，３ｂをつなぐ通路軸線ｎにほぼ平行に配置される。この状態で、図５（２）に示されるように、一方の建物２ａが他方の建物２ｂに対して見込み方向Ａに離反しかつ間口方向Ｂにずれると、この変位に追従して一方の建物２ａの縁材１１ａに設けられる係合支持手段１２ａが床補助カバー１０を間口方向Ｂ一方側へ押圧し、床補助カバー１０は傾斜するが、この傾斜した床補助カバー１０によって大きく開いた開口９は塞がれている。
【００２９】
また図５（２）に示されるように、一方の建物２ａが他方の建物２ｂに近接した状態で間口方向Ｂへずれると、床補助カバー１０はさらに大きく傾斜し、開口９は塞いだままに保たれる。このように床補助カバー１０が大きく傾斜しても、この床補助カバー１０には第７および第８周壁部分１６ｇ，１６ｈが形成されるため、補強部材７０へ干渉することが防がれる。
【００３０】
このように床用伸縮継手カバー５および壁用伸縮継手カバー７によって各建物２ａ，２ｂ間の見込み方向Ａへの相対的に近接／離反する方向への変位ならびに間口方向Ｂへずれる方向への変位を許容し、常に床壁取合い部８の床側に発生する開口部９を確実に塞いだ状態に維持することができるので、通行者が過って開口９内に足などを嵌込んだり、物品を落下させるという不具合を防ぐことができ、安全性が向上される。特に床補助カバー１０は係合支持手段１２ａ，１２ｂの相対的な間口方向Ｂへの変位によってその変位方向に押圧されて角変位することができるので、変位に対して時間的にずれて開口９を塞ぐ方向に変位するという不具合がなく、変位に対する遅れが生じない。
【００３１】
【発明の効果】
請求項１記載の本発明によれば、床補助カバーを係合支持手段によって建物の変位方向に押圧しかつばねによって見込み方向両側にばね付勢するので、床補助カバーを常に各縁材間のほぼ中央部に配置して床壁取合い部の床側に発生する開口を確実に塞ぐことができる。また床補助カバーは係合支持手段によって変位方向に押圧され、またほぼ中央部に保持するためにばねによってばね付勢するという簡単な構成によって、確実に開口を塞いだ状態に維持することができ、本発明を安価にかつ容易に実現することが可能であり、施工期間も短くて済むという有利な効果を達成することができる。
【図面の簡単な説明】
【図１】本発明の実施の一形態の伸縮継手装置の床補助カバー構造を示す水平断面図である。
【図２】床補助カバー１０の取付け状態を示す斜視図である。
【図３】図１の切断面線ＩＩＩ−ＩＩＩから見た断面図である。
【図４】床用伸縮継手カバー５の具体的構成を示す鉛直断面図である。
【図５】各建物２ａ，２ｂの変位に伴う床補助カバー１０の動作を示す平面図であり、図５（１）は各建物２ａ，２ｂが変位していないときの床補助カバー１０の状態を示し、図５（２）は各建物２ａ，２ｂが最も離間しかつ間口方向Ｂへずれたときの床補助カバー１０の状態を示し、図５（３）は各建物２ａ，２ｂが最も近接しかつ間口方向Ｂへずれたときの床補助カバー１０の状態を示す。
【符号の説明】
１目地空間
２ａ，２ｂ建物
３ａ，３ｂ通路
４ａ，４ｂ床
５床用伸縮継手カバー
６ａ，６ｂ壁
７壁用伸縮継手カバー
８床壁取合い部
９開口
１０床補助カバー
１１ａ，１１ｂ縁材
１２ａ，１２ｂ係合支持手段
１３ａ，１３ｂ引張ばね
１４上板
１５周壁
１６ａ〜１６ｈ第１〜第８周壁部分
２２ボールキャスタ
２３ローラキャスタ
４１中央パネル
４２ａ，４２ｂ側部カバー
４３中央保持手段
５１内壁中央パネル
６６外壁中央パネル
Ａ見込み方向
Ｂ間口方向[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor expansion joint cover that connects between passages of two buildings adjacent to each other with a joint space interposed therebetween, and an expansion and contraction that closes a floor side opening that occurs in a floor wall joint between the wall expansion joint cover. The present invention relates to an auxiliary cover structure for a joint device.
[0002]
[Prior art]
A typical prior art is disclosed in Japanese Patent Laid-Open No. 10-140673. In this prior art, a floor expansion joint cover provided between the passages of two buildings adjacent to each other with the joint space interposed between the floors and the floors of the respective passages, and the walls provided between the walls and the walls of the respective passages It is connected with an expansion joint cover for use, and allows a displacement in the prospective direction that is relatively close to / separated from the horizontal displacement of each building caused by a sudden earthquake or the like, and a displacement in the frontage direction perpendicular to the prospective direction. It is configured to be able to.
[0003]
The floor expansion joint cover includes a base rail that is an edge member fixed to each floor near the joint space, a joint plate that is slidably supported by each base rail, and both sides of the joint plate in the prospective direction. A pair of side covers that are disposed on the base end portions of the base plate are fixed to the respective base rails, and are provided in the vicinity of both end portions in the frontage direction of the joint plate. And a floor auxiliary cover for closing an opening generated in the floor wall joint between the wall and the expansion joint cover for wall. The floor auxiliary cover is spring-biased so as to protrude outward in the frontage direction by a spring-biasing mechanism provided at the center near the end of the joint plate, and the base end is locked to the base rail. The spring is biased to both sides in the prospective direction by the spring. The urging means for urging the auxiliary floor cover outward from the joint cover plate includes a guide cylinder fixed to the center end of the support frame of the joint plate, a spring accommodated in the guide cylinder, A slide shaft that is spring-biased in a direction of pushing out from the guide tube by a spring, and a pivot pin that pivotally supports the tip end portion of the slide shaft on the outer central portion of the support frame of the floor auxiliary cover.
[0004]
With such a configuration, even if each building is relatively displaced in the frontage direction due to an earthquake or the like, one floor auxiliary cover is retracted into the joint cover plate against the spring force of the urging means. The other floor auxiliary cover can be pushed out in the direction protruding from the joint cover plate by the urging means, thereby preventing a gap between the joint plate and the wall.
[0005]
[Problems to be solved by the invention]
In such a conventional technique, each floor auxiliary cover is spring-biased in a direction protruding outward from the joint cover plate, so that the pantograph-like link mechanism to which the guide cylinder of the urging means is connected is provided. Since a large reaction force acts, the link mechanism must be configured to have a large strength. In addition, a support frame is fixed to each floor auxiliary cover and joint plate for reinforcement, and the configuration becomes complicated and the size is increased, the number of parts is increased, the assemblability is poor, and the manufacturing cost is expensive. There's a problem. Further, since the urging means urges the floor auxiliary cover in the pushing direction, the spring force decreases as the pushing amount of the floor auxiliary cover increases, so that the displacement of each building in the frontage direction increases. The pushing force of the floor auxiliary cover becomes weak, the pushing limit position tends to be uneven, and there is a problem that the opening between the wall and the screw cover cannot be reliably closed.
[0006]
An object of the present invention is to provide an auxiliary cover structure for an expansion joint device that has a simplified configuration and can reliably close an opening generated on the floor side of a floor wall joint portion.
[0007]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a floor expansion joint cover provided between the passages of two buildings adjacent to each other with the joint space interposed between the floor and the floor of each passage, and the walls and walls of each passage. With the wall expansion joint cover provided, the horizontal displacement of each building is connected in a state that allows a displacement in a prospective direction that is relatively close / separated and a displacement in a frontage direction perpendicular to the prospective direction,
In the vicinity of both ends in the frontage direction of the floor expansion joint cover, an opening generated in the floor wall joint portion between the floor expansion joint cover and the wall expansion joint cover due to the displacement in the prospective direction of each building is blocked. Floor auxiliary cover is provided,
Engagement support means for engaging the floor auxiliary cover from the inner side in the frontage direction and movably supporting the floor auxiliary cover is provided near both ends of the frontage direction of each edge member fixed to each floor,
An auxiliary cover structure for an expansion joint device, wherein the floor auxiliary cover is maintained at a substantially central portion between the edge members and is urged by a spring toward the inside in the frontage direction.
[0008]
According to the present invention, the passages of two buildings adjacent to each other with the joint space interposed therebetween are connected by the floor expansion joint cover and the wall expansion joint cover. These floor expansion joint covers and wall expansion joint covers, when each building is displaced due to a sudden earthquake, etc., are expected displacements that are relatively close to / separated from the horizontal displacement of the displacement. In addition, it is possible to allow displacement in the frontage direction perpendicular to the prospective direction and maintain the passage between the passages.
[0009]
In the floor wall joint portion constituted by the floor expansion joint cover and the wall expansion joint cover, an opening is generated on the floor side when each building is relatively displaced in the frontage direction. The floor expansion joint cover is provided with a floor auxiliary cover. Each edge member fixed to each floor is provided with engagement support means near both ends in the frontage direction. The engagement support means engages the floor auxiliary cover from the inside in the frontage direction and supports the floor auxiliary cover so as to be movable. In this state, the floor auxiliary cover is maintained at a central portion between the edge members by a spring and is urged toward the inside in the frontage direction.
[0010]
When each building causes relative displacement in the frontage direction due to a sudden earthquake or the like, the floor auxiliary cover follows the relative displacement in the frontage direction of each building by the engagement support means and resists the spring force of the spring. And the opening generated on the floor side of the floor wall joint portion between the floor expansion joint cover and the wall expansion joint cover can be maintained in a closed state.
[0011]
In this way, the floor auxiliary cover is always supported by the spring in a state in which the spring is urged inward in the frontage direction and the engagement support means is engaged from the inner side in the frontage direction. The floor auxiliary cover can be disposed at a position where the opening of the floor wall joint portion between the wall and the expansion joint cover for wall is closed, and the opening can be reliably closed with a simple configuration. In particular, the floor auxiliary cover is spring-biased inward in the frontage direction by a spring in a state of being engaged from the inner side in the frontage direction by the engagement support means, so as described in relation to the conventional technique, As the displacement in the frontage direction of each building increases, the pushing force of the floor auxiliary cover becomes weaker, and the push limit position of the floor auxiliary cover becomes uneven and the problem that the opening cannot be reliably blocked does not occur.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a horizontal sectional view showing a floor auxiliary cover structure of an expansion joint device according to an embodiment of the present invention. Between the passages 3a and 3b of the two buildings 2a and 2b adjacent to each other with the joint space 1 interposed therebetween, the floor expansion joint cover 5 provided over the floor 4a and the floor 4b of the passages 3a and 3b, and the passages 3a and 3b, By the expansion joint device including the wall expansion joint cover 7 provided over the walls 6a and 6b of 3b, the prospective direction A and the prospective direction A that are relatively close to / separated from among the horizontal displacements of the buildings 2a and 2b. Are connected in a state in which the displacement in the frontage direction B perpendicular to is allowed.
[0013]
Near both ends of the front expansion direction cover B of the floor expansion joint cover 5, the floor between the floor expansion joint cover 5 and the wall expansion joint cover 7 due to the displacement in the prospective direction A of each building 2 a, 2 b. A floor auxiliary cover 10 that closes the opening 9 generated in the wall joint 8 is provided. In FIG. 1, for ease of illustration, only the floor auxiliary cover structure of the floor wall joint portion 8 on one side is shown, the opening 9 indicates a region by a number of points, and the floor auxiliary cover 10 is parallel. The arrangement area is indicated by a plurality of broken lines.
[0014]
FIG. 2 is a perspective view showing a state in which the floor auxiliary cover 10 is attached, and FIG. 3 is a cross-sectional view taken along the section line III-III in FIG. In the floor auxiliary cover structure of the floor wall joint portion 8 configured as described above, the floor auxiliary cover 10 is located near both ends of the front edge direction B of the edge members 11a and 11b fixed to the floors 6a and 6b. Are engaged from the inner side in the frontage direction B, that is, from the right side of FIGS. 1 and 3, and engaging support means 12a and 12b for movably supporting the floor auxiliary cover 10 and the floor auxiliary cover 10 are attached to the edge members 11a. , 11b and tension springs 13a, 13b which are spring-biased to the inside of the frontage direction B, that is, to the right side of FIGS.
[0015]
The floor auxiliary cover 10 includes a flat upper plate 14 that is horizontally disposed and a peripheral wall 15 that is bent at a substantially right angle downward from the peripheral edge of the upper plate 14 and cuts and bends, for example, a stainless steel plate. Formed by processing. The circumferential wall 15 is bent at a right angle downward from both ends in the width direction perpendicular to the longitudinal direction of the upper plate 14, and is connected to the first and second circumferential wall portions 16a and 16b extending in parallel along the longitudinal direction. A direction that is connected to both ends in the longitudinal direction of the peripheral wall portion 16a and that is closer to the extension line of the second peripheral wall portion 16b as it is separated from each other in the longitudinal direction at an angle of 45 ° with respect to the extension line of the first peripheral wall portion 16a. The third and fourth peripheral wall portions 16c, 16d that are inclined to each other, and the third and fourth peripheral wall portions 16c, 16d that are bent and connected to the end portions that are farthest in the longitudinal direction, and are perpendicular to the longitudinal direction. 5th and 6th peripheral wall portions 16e and 16f extending in parallel with each other along the longitudinal direction of the second peripheral wall portion 16b are bent and connected to each other, and the first peripheral wall is separated from each other along the longitudinal direction. Part 16 And a seventh and eighth wall portion 16g and 16h are inclined in a direction close to the extension line.
[0016]
The seventh and eighth peripheral wall portions 16g and 16h are inclined along an angle of 45 ° with respect to the extension line of the second peripheral wall portion 16b, and are formed along virtual vertical planes that are perpendicular to each other. One end of the one tension spring 13a is locked to the intersection c1 between the fifth peripheral wall portion 16e and the seventh peripheral wall portion 16g. One end of the other tension spring 13b is locked to the intersection c2 between the sixth peripheral wall portion 16f and the eighth peripheral wall portion 16h. The other end portions of the tension springs 13a and 13b are respectively one end portions of the tension springs 13a and 13b of the floor auxiliary cover 10 arranged in parallel to the prospective direction A on the folded portions 21a and 21b of the edge members 11a and 11b. Are locked by locking portions c3 and c4 closer to the center of the frontage direction B (to the right in FIGS. 1 and 3) than the extension line m passing through each of the intersections.
[0017]
By the tension springs 13a and 13b provided in this way, both ends in the longitudinal direction of the floor auxiliary cover 10 are spring-biased inside the frontage direction B, that is, the right side in FIGS. 1 and 3, and the prospects of the springs 13a and 13b are expected. Due to the spring force components F1 and F2 in the direction A, the floor auxiliary cover 10 is always disposed at substantially the center of the prospective direction A between the edge members 11a and 11b.
[0018]
The engagement support means 12a and 12b are configured such that a ball caster 22 that supports the upper plate 14 of the floor auxiliary cover 10 so as to be movable from below, a ball caster 22 is connected to the upper part, and a lower part is welded to the edge members 11a and 11b. And a roller caster 23 to be fixed. The ball caster 22 includes a spherical guide ball 24 and a holder 25 that rotatably supports the guide ball 24. The roller caster 23 includes a guide roller 26 that is rotatable about a vertical rotation axis, and a bracket 27 that supports the guide roller 26 about the vertical rotation axis. The holder 25 is fixed to the upper portion of the bracket 27, and the outer peripheral portion of the guide roller 26 protrudes from the bracket 27 and contacts the inner surface of the first peripheral wall portion 16a of the floor auxiliary cover 10 as described above.
[0019]
By such engagement support means 12a and 12b, the floor auxiliary cover 10 is supported so as to be movable in the prospective direction A and the frontage direction B, and in the frontage direction B, inward displacement, that is, each floor auxiliary cover 10 is Displacement in directions close to each other is prevented.
[0020]
FIG. 4 is a vertical sectional view showing a specific configuration of the floor expansion joint cover 5. The floor expansion joint cover 5 is welded to the upper part of the embedded fasteners 31a and 31b which are long in a direction perpendicular to the paper surface of FIG. A pair of upper support pieces 32a, 32b fixed thereto, lower support pieces 33a, 33b fixed to the respective embedded fasteners 31a, 31b by welding under the upper support pieces 32a, 32b, and an upper support piece 32a. 32b, a pair of inner mounting pieces 36a, 36b fixed by welding to the upper surfaces 35a, 35b of the respective embedded fasteners 31a, 31b, and the inner mounting pieces 36a, 36b on the upper surfaces 34a, 34b of the floors 4a, 4b. Outer mounting pieces 38a, 38b fixed to the floors 4a, 4b by anchor bolts 37a, 37b on both sides of the prospective direction A rather than 36b, and inner mounting pieces 36a, 6b and outer mounting pieces 38a and 38b, both longitudinal ends thereof are respectively fixed, reinforcing members 39a and 39b provided at intervals in the frontage direction B perpendicular to the paper surface of FIG. 4, upper support pieces 32a and 32b, and The edge members 11a and 11b fixed in a state where they are supported by the reinforcing members 39a and 39b, the center panel 41 in which both sides of the prospective direction A are movably supported by the edge members 11a and 11b, and the edge members 11a. 11b and a pair of side covers 42a, 42b that cover both sides of the center panel 41 from above, and the edge of the center panel 41 regardless of the horizontal displacement direction of the buildings 2a, 2b. A plurality of central holding means that are held by the central portion between them and allow displacement in the prospective direction A and the frontage direction B of each building 2a, 2b, and are realized by a pantograph-like link mechanism Including a 3 and.
[0021]
Both ends of the center holding means 43 are pivotally supported on the lower support pieces 33a and 33b by pin bolts 47a and 47b, and the center is pivotally supported by the pin bolt 48 on the center in the width direction of the center panel 41. Each axis of these pin bolts 47a, 47b, 48 extends in a substantially vertical direction and is parallel to each other.
[0022]
On both sides of the prospective direction A of the central panel 41, ball casters 44a and 44b that support the central panel 41 so as to be smoothly movable on the respective edge members 11a and 11b are spaced apart in a direction perpendicular to the paper surface of FIG. A plurality of pairs are provided, and the floor auxiliary cover 10, the engagement support means 12 a and 12 b, and the tension springs 13 a and 13 b described above are symmetrical in the left-right direction toward the prospective direction A in the vicinity of both ends of the front panel direction B of the central panel 41. Provided. In FIG. 1 described above, only the floor auxiliary cover 10 provided on the outdoor 45 side and the vicinity thereof are shown for ease of illustration.
[0023]
The width direction both ends of the waterproof sheet 46 made of, for example, rubber having flexibility are fixed to the lower end portions of the respective embedded fasteners 31a and 31b. In this state, the buildings 2a and 2b are not convexly displaced in a prospective direction A in which the buildings 2a and 2b are relatively close to / separated due to a sudden earthquake or the like, and are curved downward and are perpendicular to the plane of FIG. It has a drainage gradient in the depth direction, preventing rainwater from falling downward.
[0024]
Referring to FIG. 1 again, the wall expansion joint cover 7 is connected to the inner walls 51a and 51b by hinges 52a and 52b so as to be angularly displaceable around the vertical axis, and to the outer walls 54a and 54b. The outer wall cover 56 is connected to the hinges 55a and 55b so as to be angularly displaceable about the vertical axis.
[0025]
The inner wall cover 53 is connected to the hinges 52a and 52b so as to be angularly displaceable about a vertical axis, and is a pair of guide covers 57a and 57b that are long in the direction perpendicular to the paper surface of FIG. 1, and the guide cover portions 57a and 57b. The expansion and contraction holding means 58 realized by a pantograph-like link mechanism, and the spring 59 and the bolt 60 are elastically attracted in the direction close to the expansion and contraction holding means 58 by the central portion of the expansion and contraction holding means 58. And an inner wall central panel 61 that is held in a closed state.
[0026]
The outer wall cover 56 is provided on the outdoor 45 side of the inner wall cover 53. The outer wall cover 56 is connected to the hinges 55a and 55b, and is a telescopic holding means 64 realized by a pantograph-like link mechanism, and an outer wall central panel connected to be freely angularly displaceable by a hinge 65 provided on one outer wall 54b. 66, and a tension spring 67 that elastically pulls and urges the outer wall center panel 66 inward in the frontage direction B, that is, to the right in FIG.
[0027]
FIG. 5 is a plan view showing the operation of the floor auxiliary cover 10 in accordance with the displacement of the buildings 2a and 2b. FIG. 5 (1) shows the state of the floor auxiliary cover 10 when the buildings 2a and 2b are not displaced. 5 (2) shows the state of the floor auxiliary cover 10 when the buildings 2a and 2b are farthest apart and shifted in the frontage direction B, and FIG. 5 (3) shows that the buildings 2a and 2b are closest to each other. And the state of the floor auxiliary cover 10 when shifted to the frontage direction B is shown.
[0028]
As shown in FIG. 5A, in the state where the buildings 2a and 2b are not horizontally displaced, the floor auxiliary cover 10 is disposed substantially parallel to the passage axis n connecting the passages 3a and 3b. In this state, as shown in FIG. 5 (2), when one building 2a moves away from the other building 2b in the prospective direction A and shifts in the frontage direction B, the one building follows the displacement. Engagement support means 12a provided on the edge member 11a of 2a presses the floor auxiliary cover 10 to one side in the frontage direction B, and the floor auxiliary cover 10 is inclined, but the opening 9 that is largely opened by the inclined floor auxiliary cover 10 is provided. Is blocked.
[0029]
Further, as shown in FIG. 5 (2), when one building 2a is shifted to the frontage direction B in the state of being close to the other building 2b, the floor auxiliary cover 10 is further inclined and the opening 9 is left closed. Kept. Thus, even if the floor auxiliary cover 10 is largely inclined, the floor auxiliary cover 10 is formed with the seventh and eighth peripheral wall portions 16g and 16h, so that interference with the reinforcing member 70 is prevented.
[0030]
In this way, the floor expansion joint cover 5 and the wall expansion joint cover 7 cause displacement between the buildings 2a and 2b in the direction of approaching / separating in the prospective direction A and displacement in the direction of the frontage direction B. Can be maintained in a state in which the opening 9 generated on the floor side of the floor wall joint portion 8 is always closed, so that a passerby may fit a foot or the like in the opening 9 The problem of dropping the article can be prevented, and safety is improved. In particular, the floor auxiliary cover 10 can be angularly displaced by being pushed in the displacement direction by the relative displacement of the engagement support means 12a, 12b in the frontage direction B. There is no inconvenience of displacement in the direction of closing the cover, and no delay with respect to displacement occurs.
[0031]
【The invention's effect】
According to the first aspect of the present invention, the floor auxiliary cover is pressed in the displacement direction of the building by the engagement support means and is spring-biased by the springs on both sides in the prospective direction. It is possible to reliably close the opening generated on the floor side of the floor wall joint portion by being arranged at substantially the center. Further, the floor auxiliary cover is pressed in the displacement direction by the engagement support means, and is spring-biased by a spring so as to be held substantially at the center, so that the opening can be reliably maintained in the closed state. The present invention can be realized inexpensively and easily, and an advantageous effect that the construction period can be shortened can be achieved.
[Brief description of the drawings]
FIG. 1 is a horizontal sectional view showing a floor auxiliary cover structure of an expansion joint device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a state where the floor auxiliary cover 10 is attached.
3 is a cross-sectional view taken along section line III-III in FIG. 1. FIG.
4 is a vertical sectional view showing a specific configuration of the floor expansion joint cover 5. FIG.
FIG. 5 is a plan view showing the operation of the floor auxiliary cover 10 according to the displacement of the buildings 2a and 2b, and FIG. 5 (1) shows the state of the floor auxiliary cover 10 when the buildings 2a and 2b are not displaced. 5 (2) shows the state of the floor auxiliary cover 10 when the buildings 2a and 2b are farthest apart and shifted in the frontage direction B, and FIG. 5 (3) shows that the buildings 2a and 2b are closest to each other. And the state of the floor auxiliary cover 10 when shifted to the frontage direction B is shown.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Joint space 2a, 2b Building 3a, 3b Passage 4a, 4b Floor 5 Floor expansion joint cover 6a, 6b Wall 7 Wall expansion joint cover 8 Floor wall joint part 9 Opening 10 Floor auxiliary cover 11a, 11b Edge material 12a, 12b Engagement support means 13a, 13b Tension spring 14 Upper plate 15 Peripheral walls 16a-16h First to eighth peripheral wall parts 22 Ball caster 23 Roller caster 41 Central panel 42a, 42b Side cover 43 Central holding means 51 Inner wall central panel 66 Center of outer wall Panel A Expected direction B Frontage direction

Claims

Between each passage of two buildings adjacent to each other with the joint space interposed therebetween, a floor expansion joint cover provided across the floor and floor of each passage, and a wall expansion joint cover provided across the wall and wall of each passage , In a state in which the horizontal displacement of each building can allow the displacement in the prospective direction that is relatively close to / separated and the displacement in the frontage direction perpendicular to the prospective direction,
In the vicinity of both ends in the frontage direction of the floor expansion joint cover, an opening generated in the floor wall joint portion between the floor expansion joint cover and the wall expansion joint cover due to the displacement in the prospective direction of each building is blocked. Floor auxiliary cover is provided,
Engagement support means for engaging the floor auxiliary cover from the inner side in the frontage direction and movably supporting the floor auxiliary cover is provided near both ends of the frontage direction of each edge member fixed to each floor,
An auxiliary cover structure for an expansion joint device, wherein the floor auxiliary cover is maintained at a substantially central portion between the edge members and is spring-biased by a spring inward in the frontage direction.