JP4144723B2

JP4144723B2 - Scaffold fastening device

Info

Publication number: JP4144723B2
Application number: JP24285399A
Authority: JP
Inventors: 新一岩田
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-08-30
Filing date: 1999-08-30
Publication date: 2008-09-03
Anticipated expiration: 2019-08-30
Also published as: JP2001065171A

Description

【０００１】
【発明の属する技術分野】
この発明は、例えばエレベータの昇降路内などに設置される足場装置に用いられ、足場板支持部材に足場板を締結する足場締結装置に関するものである。
【０００２】
【従来の技術】
図１９は例えば特開平８−３４５７６号公報に示された従来のエレベータの足場装置の設置状態を示す側面図、図２０は図１９の足場装置を示す平面図である。図において、１はエレベータの昇降路、２は最上階の乗場床、３は最上階の乗場出入口、４は乗場出入口３の前に立設されている一対の縦パイプ、５は縦パイプ４の下端部を乗場床２に固定するための固定金である。
【０００３】
６は乗場出入口３に対向する昇降路壁１ａに当接し、足場装置の反力を昇降路壁１ａに伝える足場受け金具、７は足場受け金具６と縦パイプ４の中間部との間に互いに平行にかつ水平に架設されている一対の横パイプ、８は横パイプ７の足場受け金具６側の端部と縦パイプ４の下端部との間に斜めに連結されている斜めパイプ、９は一対の横パイプ７上に支持されている複数枚の足場板である。
【０００４】
図２１は図１９の横パイプ７と足場板９との結合部を拡大して示す斜視図である。図において、１０は横パイプ７と足場板９とに係合している一対の掛合具であり、これらの掛合具１０の一端部には、横パイプ７に引っかけられている第１の係合部１０ａが設けられている。また、掛合具１０の他端部には、断面コ字形に折り曲げられた第２の係合部１０ｂが設けられている。１１は足場板９上で一対の掛合具１０の第２の係合部１０ｂ間に掛けられている環状のゴムバンドである。
【０００５】
このような足場装置は、エレベータの据付行程の初期に設置され、例えば昇降路１の上部に揚重装置（図示せず）を設置する作業などに使用される。このとき、横パイプ７の上に単に足場板９を置くだけでは足場板９が不安定であるため、足場板９を横パイプ７に対してしっかりと結合しておく必要がある。
【０００６】
このため、各足場板９の両端部近傍に掛合具１０及びゴムバンド１１を装着する。即ち、掛合具１０の第１の係合部１０ａを横パイプ７に掛け、第２の係合部１０ｂ間にゴムバンド１１を装着する。ゴムバンド１１は、一対の掛合具１０を互いに引き寄せる方向へ引っ張り、これにより足場板９が横パイプ７上に結合される。
【０００７】
【発明が解決しようとする課題】
上記のように構成された従来の足場装置においては、足場板９の幅の変化に応じてゴムバンド１１の大きさを変える必要があった。また、ゴムバンド１１を取り付けるまでは、第１の係合部１０ａが横パイプ７に掛けられているだけなので、掛合具１０が落下しないように注意が必要であり、作業性が低かった。さらに、ゴムバンド１１の寿命は１年程度であり、ゴムバンド１１の劣化を常に確認する必要があるが、劣化の度合いを判断するのは難しかった。
【０００８】
この発明は、上記のような問題点を解決することを課題としてなされたものであり、足場板の幅等のサイズの変化に容易に対応できるとともに、着脱が容易であり、長寿命で信頼性の高い足場締結装置を得ることを目的とする。
【０００９】
【課題を解決するための手段】
請求項１の発明に係る足場締結装置は、水平に配置される棒状の足場板支持部材と、複数の穴を有し足場板支持部材上に支持される足場板とを締結するためのものにおいて、足場板支持部材に係合される係合片、この係合片に回動可能に連結され、係合片との間に足場板支持部材を保持する回動片、係合片に固定されているガイド部材、このガイド部材に沿ってスライド可能であり、足場板の下側から穴のいずれかに通されるスライドボルト、及び穴を貫通したスライドボルトに螺着されるナットを備えたものである。
【００１０】
請求項２の発明に係る足場締結装置は、係合片に対して回動自在に連結されている回動ボルトと、この回動ボルトに螺着される締め付けナットとを備え、回動片の先端部には、回動ボルトが回動により出し入れされるＵ字状の切欠が設けられており、回動ボルトが切欠に入った状態で締め付けナットを締め付けることにより、係合片と回動片との間に足場板支持部材が挟持されるものである。
【００１１】
請求項３の発明に係る足場締結装置は、水平に配置される棒状の足場板支持部材と、この足場板支持部材に接するフランジ部を有し足場板支持部材上に支持される足場板とを締結するためのものにおいて、フランジ部に当接する当接部を有し、足場板支持部材上に足場板を押さえ付ける押さえ部材、この押さえ部材を貫通するねじ部が両端部に設けられており、押さえ部材との間に足場板支持部材を挟持するＵボルト、及びねじ部に螺着されている複数のナットを備えたものである。
【００１２】
請求項４の発明に係る足場締結装置は、水平に配置される棒状の足場板支持部材と、長手方向に沿って連続的に設けられたスライド溝を有し足場板支持部材上に支持される足場板とを締結するためのものにおいて、スライド溝に沿ってスライド可能な一対のスライドボルト、足場板との間に足場板支持部材を挟持する締結装置本体、及びスライドボルトにそれぞれ螺着され、足場板との間に締結装置本体の両端部を挟持する一対のナットを備えたものである。
【００１３】
請求項５の発明に係る足場締結装置は、水平に配置される棒状の足場板支持部材と、この足場板支持部材上に支持される足場板とを締結するためのものにおいて、足場板支持部材が貫通する締結装置本体、足場板の上から足場板支持部材に足場板を押さえ付ける押さえ部材、及びこの押さえ部材を貫通して締結装置本体に螺着される締め付けボルトを備えたものである。
【００１４】
請求項６の発明に係る足場締結装置は、足場板の幅方向両側に締結装置本体を配置し、足場板と交差するように足場板上に配置され、両端部が締め付けボルトにより締結装置本体に接続される押さえ板を押さえ部材として用いたものである。
【００１５】
請求項７の発明に係る足場締結装置は、締め付けボルトが螺着される２つのねじ穴を各締結装置本体に設けたものである。
【００１６】
請求項８の発明に係る足場締結装置は、隣接する２枚の足場板間に締結装置本体を配置し、２枚の足場板の両方に押さえ部材を当接させたものである。
【００１７】
請求項９の発明に係る足場締結装置は、締め付けボルトの先端部が挿入される切欠部を締結装置本体に設け、この切欠部の内側に、締め付けボルトが螺着されるナットを固着したものである。
【００１８】
請求項１０の発明に係る足場締結装置は、第１の係合片と、この第１の係合片に対して開閉可能に連結され、第１の係合片との間に足場板支持部材を保持する第２の係合片とを有する締結装置本体を用いたものである。
【００１９】
【発明の実施の形態】
以下、この発明の実施の形態を図について説明する。
実施の形態１．
図１はこの発明の実施の形態１による足場締結装置が設けられているエレベータの足場装置を示す平面図である。図において、１はエレベータの昇降路、２は最上階の乗場床、３は最上階の乗場出入口、４は乗場出入口３の前に立設されている一対の縦パイプ、５は縦パイプ４の下端部を乗場床２に固定するための固定金、６は乗場出入口３に対向する昇降路壁１ａに当接し、足場装置の反力を昇降路壁１ａに伝える足場受け金具である。
【００２０】
７は足場受け金具６と縦パイプ４の中間部との間に互いに平行にかつ水平に架設されている棒状の足場板支持部材としての一対の横パイプ、８は横パイプ７の足場受け金具６側の端部と縦パイプ４の下端部との間に斜めに連結されている斜めパイプ、９は一対の横パイプ７上に支持されている複数枚の足場板であり、これらの足場板には、滑り止めと軽量化のための多数の押し出し穴９ａが整列して設けられている。なお、足場装置全体の側面図は、図１９と同様である。
【００２１】
次に、図２は図１の横パイプと足場板との結合部を拡大して示す斜視図、図３は図２のＩＩＩ−ＩＩＩ線に沿う断面図、図４は図２のＩＶ−ＩＶ線に沿う断面図、図５は図３の足場締結装置を示す斜視図である。
【００２２】
図において、２１は横パイプ７に係合される係合片、２２は係合片２１に軸２１Ａを中心として回動自在に連結され、係合片２１との間に横パイプ７を保持する回動片であり、この回動片２２の先端部には、Ｕ字状の切欠２２ａが設けられている。２３は係合片２１に軸２１Ｂを中心として回動自在に連結されている回動ボルトであり、この回動ボルト２３は、回動により切欠２２ａに対して出し入れされる。２４は回動ボルト２３に螺着されている締め付けナットである。
【００２３】
２５は係合片２１に固定されているガイド部材、２６はガイド部材２５に沿ってスライド可能なスライド片、２７はスライド片２６に固定され、足場板９の押し出し穴９ａに通されるスライドボルト、２８はスライドボルト２７に螺着されている蝶ナットである。
【００２４】
実施の形態１の足場締結装置は、係合片２１、回動片２２、回動ボルト２３、締め付けナット２４、ガイド部材２５、スライド片２６、スライドボルト２７及び蝶ナット２８により構成されている。
【００２５】
上記のような足場締結装置を用いて足場装置を組み立てる場合、まず一対の横パイプ７のそれぞれに足場締結装置をそれぞれ仮止めする。即ち、回動片２２及び回動ボルト２３を図３の２点鎖線に示すように開放して、係合片２１を横パイプ７に係合させる。この後、図３の実線に示すように、回動片２２及び回動ボルト２３を閉じて締め付けナット２４を軽く締める。この状態では、足場締結装置を横パイプ７に沿って容易にスライドさせることができる。
【００２６】
次に、横パイプ７の軸方向への係合片２１の位置、及びガイド部材２５の長手方向（横パイプ７の軸方向に対して直角の方向）に沿ったスライド片２６の位置を調整しながら、足場板９の押し出し穴９ａにスライドボルト２７を貫通させる。このとき、蝶ナット２８は外しておき、押し出し穴９ａを通した後に、足場板９の上側からスライドボルト２７に蝶ナット２８を螺着させる。
【００２７】
また、図１に示すように、１枚の足場板９に対して左右１組ずつの足場締結装置を使用する場合には、対角線上に位置する押し出し穴９ａにスライドボルト２７を通すのが好ましい。これにより、足場板９を横パイプ７上に安定して固定することができる。
【００２８】
このように、蝶ナット２８を締め込み、足場締結装置に対して足場板９を固定したら、締め付けボルト２３を締め込んで、横パイプ７に対しても足場締結装置をしっかりと固定する。このような作業を繰り返していくことにより、足場板９を図１の乗場側から１枚ずつ横パイプ７上に固定することができる。
【００２９】
また、締め付けボルト２３の締め込みを行う前に、仮止めされた足場板９を昇降路１の奥側へスライドさせ、その手前に次の足場板９を仮止めするという作業を繰り返し、全ての足場板９を仮止めした後に締め付けボルト２３をまとめて締め込む作業を行ってもよい。これにより、全ての足場板９の仮止め作業を乗場側で行うことができる。
【００３０】
このような足場締結装置によれば、締め付けナット２４の締め込み前であれば、スライドボルト２７の位置を横パイプ７に対して自由に調整することができるので、足場板９に通常多数設けられている押し出し穴９ａを利用して、足場板９を横パイプ７にしっかりと固定することができる。また、足場板９の厚さや幅の変化にも容易に対応できるとともに、着脱作業も容易である。さらに、長期に渡って繰り返し使用することができ、高い信頼性を確保することができる。
【００３１】
実施の形態２．
次に、図６はこの発明の実施の形態２による足場締結装置を示す正面図、図７は図６の右側面図であり、足場装置全体の構成は図１９と同様である。図において、足場板９の幅方向両端部には、横パイプ７に接するフランジ部（折り返し部）９ｂが形成されている。３１は横パイプ７上に足場板９を押さえ付ける押さえ部材であり、この押さえ部材３１は、足場板９のフランジ部９ｂに当接する当接部３１ａと、横パイプ７の外周面に係合するテーパ状の係合溝３１ｂとを有している。
【００３２】
３２は押さえ部材３１との間に横パイプ７を挟持するＵボルトであり、このＵボルト３２の両端部には、ねじ部３２ａが設けられている。また、ねじ部３２ａは、それぞれ押さえ部材３１を貫通している。３３はねじ部３２ａに螺着されている蝶ナットである。
【００３３】
このような足場締結装置では、押さえ部材３１とＵボルト３２との間に横パイプ７を挟むとともに、当接部３１ａと横パイプ７との間にフランジ部９ｂを挟んだ状態で、蝶ナット３３を締め込むことにより、足場板９が横パイプ７にしっかりと固定される。また、１枚の足場板９に対して、２組の足場締結装置を対角線上に配置することにより、足場板９を横パイプ７に安定して固定できる。
【００３４】
さらに、フランジ部９ｂは通常足場板９の長手方向（図６の左右方向）に沿って連続して設けられており、また蝶ナット３３を締め込む前であれば、足場締結装置の位置は横パイプ７の軸方向に自由に調整可能であるため、足場板９の厚さや幅の変化にも容易に対応できるとともに、着脱作業も容易である。さらに、長期に渡って繰り返し使用することができ、高い信頼性を確保することができる。
【００３５】
実施の形態３．
次に、図８はこの発明の実施の形態３による足場締結装置を示す正面図、図９は図８の右側面図であり、足場装置全体の構成は図１９とほぼ同様である。図において、３５は横パイプ７上に支持されている足場板であり、この足場板３５の幅方向両端部には、スライド溝３５ａが長手方向に沿って連続的に設けられている。３６はスライド溝３５ａに沿ってスライド可能な一対のスライドボルトである。
【００３６】
３７は足場板３５との間に横パイプ７を挟持するＵ字形の締結装置本体であり、この締結装置本体３７の両端部には、スライドボルト３６を通す溝３７ａがそれぞれ設けられている。３８はスライドボルト３６にそれぞれ螺着され、足場板３５の幅方向端面との間に締結装置本体３７の両端部を挟持する一対の蝶ナットである。
【００３７】
このような足場装置では、足場板３５の両側のスライド溝３５ａに、足場板３５の枚数×２個のスライドボルト３６をそれぞれ通しておく。そして、締結装置本体３７を横パイプ７に係合させるとともに、締結装置本体３７の溝３７ａ内にスライドボルト３６を通し、蝶ナット３８を締め込む。これにより、足場板３５が横パイプ７上にしっかりと固定される。また、１枚の足場板３５に対して、２組の足場締結装置を対角線上に配置することにより、足場板３５を横パイプ７に安定して固定できる。
【００３８】
実施の形態４．
次に、図１０はこの発明の実施の形態４による足場締結装置を示す側面図である。図において、４１は横パイプ７上に支持されている足場板であり、この足場板４１の裏面の幅方向中央部には、スライド溝４１ａが長手方向に沿って連続的に設けられている。４２はスライド溝４１ａに沿ってスライド可能な一対のスライドボルトである。
【００３９】
４３は足場板４１との間に横パイプ７を挟持するΩ形の締結装置本体であり、一対のスライドボルト４２は締結装置本体４３の両端部を貫通している。４４はスライドボルト４２にそれぞれ螺着され、足場板４１との間に締結装置本体４３の両端部を挟持する一対の蝶ナットである。
【００４０】
この例では、１枚の足場板４１に対して、その長手方向両端部付近にそれぞれ１組ずつ、計２組の足場締結装置が装着されている。これにより、足場板４１がしっかりと安定して横パイプ７上に固定されている。このように、スライド溝４１ａが幅方向の中央部にある足場板４１であっても、横パイプ７に容易に固定することができる。
【００４１】
実施の形態５．
次に、図１１はこの発明の実施の形態５による足場締結装置を示す平面図、図１２は図１１のＸＩＩ−ＸＩＩ線に沿う断面図、図１３は図１１のＸＩＩＩ−ＸＩＩＩ線に沿う断面図、図１４は図１１のＸＩＶ−ＸＩＶ線に沿う断面図であり、足場装置全体の構成は図１９とほぼ同様である。
【００４２】
図において、５１は横パイプ７に取り付けられている締結装置本体であり、この締結装置本体５１には、横パイプ７がスライド可能な状態で貫通する貫通孔５１ａが設けられている。貫通孔５１ａの径は、横パイプ７の外径とほぼ等しくなっている。また、締結装置本体５１は、足場板９の上面と面一の平面を構成するフランジ部５１ｂを有している。フランジ部５１ｂには、２つのねじ穴５１ｃが設けられている。さらに、締結装置本体５１は、足場板９の長手方向両端部近傍で幅方向両側にそれぞれ配置されている。
【００４３】
５２は足場板９の長手方向両端部近傍で足場板９と交差するように足場板９上に配置されている押さえ部材としての複数の押さえ板、５３は押さえ板５２の両端部を貫通してねじ穴５１ｃに螺着されている複数の締め付けボルトである。
【００４４】
このような足場締結装置では、足場板９に押さえ板５２を交差させ、押さえ板５２の両端部を締め付けボルト５３でフランジ部５１ｂに固定することにより、足場板９が横パイプ７上にしっかりと押さえ付けられる。また、締結装置本体５１は、横パイプ７に沿ってスライド可能であり、足場板９の幅寸法の変化に容易に対応できる。
【００４５】
さらに、足場板９の上側で締め付けボルト５３を取り付けたり外したりすればよいので、着脱作業も容易である。さらにまた、長期に渡って繰り返し使用することができ、高い信頼性を確保することができる。また、足場板にスライド溝や押し出し穴を必要とせず、種々の足場板に適用することができる。
【００４６】
実施の形態６．
図１５はこの発明の実施の形態６による足場締結装置を示す側面図、図１６は図１５のＸＶＩ−ＸＶＩ線に沿う断面図であり、図１５は図１６の右側面図に相当する。また、足場装置全体の構成は図１９とほぼ同様である。
【００４７】
図において、６１は横パイプ７に取り付けられている締結装置本体であり、この締結装置本体６１には、横パイプ７がスライド可能な状態で貫通する貫通孔６１ａが設けられている。貫通孔６１ａの径は、横パイプ７の外径とほぼ等しくなっている。また、締結装置本体６１には、切欠部６１ｂが設けられている。６２は切欠部６１ｂの内側に固着されているナットである。
【００４８】
６３は足場板９の長手方向両端部で足場板９を横パイプ７に押し付ける押さえ部材、６４は押さえ部材６３を貫通してナット６２に螺着されている締め付けボルトである。
【００４９】
このような足場締結装置では、押さえ部材６３の一部を足場板９に載せ、押さえボルト６４をナット６２に螺着させ締め込むことにより、足場板９が横パイプ７上にしっかりと押さえ付けられる。また、締結装置本体６１は、横パイプ７に沿ってスライド可能であり、足場板９の幅寸法の変化に容易に対応できる。さらに、切欠部６１ｂの深さの範囲で、足場板９の厚さの変化にも容易に対応することができる。
【００５０】
さらにまた、足場板９の上側で押さえボルト６４を取り付けたり外したりすればよいので、着脱作業も容易である。また、長期に渡って繰り返し使用することができ、高い信頼性を確保することができる。さらに、足場板にスライド溝や押し出し穴を必要とせず、種々の足場板に適用することができる。
【００５１】
実施の形態７．
図１７はこの発明の実施の形態７による足場締結装置を示す側面図、図１８は図１７のＸＶＩＩＩ−ＸＶＩＩＩ線に沿う断面図であり、図１７は図１８の右側面図に相当する。また、足場装置全体の構成は図１９とほぼ同様である。
【００５２】
図において、６５は横パイプ７に取り付けられている締結装置本体であり、この締結装置本体６５は、ナット６２が固着されている第１の係合片６６と、この第１の係合片６６に開閉可能に連結され、第１の係合片６６との間に横パイプ７を保持する第２の係合片６７と、第１及び第２の係合片６６，６７を連結する連結具（ボルト・ナット）６８とを有している。
【００５３】
６９は隣接する足場板９が無い位置で使用される押さえ部材であり、この押さえ部材６９は、横パイプ７に当接するパイプ当接部６９ａを有している。なお、上記実施の形態６においても、隣接する足場板９が無い位置では、押さえ部材６９が使用される。
【００５４】
このような足場締結装置によれば、一方の締結具６８を取り外すことにより、例えば図１８の２点鎖線に示すように、第２の係合片６７を回動させ開放することができる。従って、予め横パイプ７に締結装置本体６５を通しておく必要がなくなり、作業性が向上する。
【００５５】
なお、上記の例では、２本の横パイプ７上に足場板９，３５，４１を締結する足場締結装置について説明したが、３本以上の足場板支持部材に締結する場合にも使用できる。また、１本の足場板支持部材と構造物の一部とで足場板を支持するような場合にも使用できる。
【００５６】
【発明の効果】
以上説明したように、請求項１の発明の足場締結装置は、足場板支持部材に係合される係合片、この係合片に回動可能に連結され、係合片との間に足場板支持部材を保持する回動片、係合片に固定されているガイド部材、このガイド部材に沿ってスライド可能であり、足場板の下側から穴のいずれかに通されるスライドボルト、及び穴を貫通したスライドボルトに螺着されるナットを備えたので、足場板の幅や厚さ等のサイズの変化に容易に対応できるとともに、着脱作業も容易である。また、長期に渡って繰り返し使用でき、信頼性を向上させることができる。
【００５７】
請求項２の発明の足場締結装置は、係合片に対して回動自在に連結されている回動ボルトと、この回動ボルトに螺着される締め付けナットとを備え、回動片の先端部には、回動ボルトが回動により出し入れされるＵ字状の切欠が設けられており、回動ボルトが切欠に入った状態で締め付けナットを締め付けることにより、係合片と回動片との間に足場板支持部材が挟持されるので、簡単な構造で、足場板支持部材への取付を容易に行うことができる。
【００５８】
請求項３の発明の足場締結装置は、足場板のフランジ部に当接する当接部を有し、足場板支持部材上に足場板を押さえ付ける押さえ部材、この押さえ部材を貫通するねじ部が両端部に設けられており、押さえ部材との間に足場板支持部材を挟持するＵボルト、及びねじ部に螺着されている複数のナットを備えたので、足場板の幅や厚さ等のサイズの変化に容易に対応できるとともに、着脱作業も容易である。また、長期に渡って繰り返し使用でき、信頼性を向上させることができる。
【００５９】
請求項４の発明の足場締結装置は、足場板のスライド溝に沿ってスライド可能な一対のスライドボルト、足場板との間に足場板支持部材を挟持する締結装置本体、及びスライドボルトにそれぞれ螺着され、足場板との間に締結装置本体の両端部を挟持する一対のナットを備えたので、足場板の幅等のサイズの変化に容易に対応できるとともに、着脱作業も容易である。また、長期に渡って繰り返し使用でき、信頼性を向上させることができる。
【００６０】
請求項５の発明の足場締結装置は、足場板支持部材が貫通する締結装置本体、足場板の上から足場板支持部材に足場板を押さえ付ける押さえ部材、及びこの押さえ部材を貫通して締結装置本体に螺着される締め付けボルトを備えたので、足場板の幅等のサイズの変化に容易に対応できるとともに、着脱作業も容易である。また、長期に渡って繰り返し使用でき、信頼性を向上させることができる。
【００６１】
請求項６の発明の足場締結装置は、足場板の幅方向両側に締結装置本体を配置し、足場板と交差するように足場板上に配置され、両端部が締め付けボルトにより締結装置本体に接続される押さえ板を押さえ部材として用いたので、簡単な構造で足場板をしっかりと足場板支持部材上に押さえ付けることができる。
【００６２】
請求項７の発明の足場締結装置は、締め付けボルトが螺着される２つのねじ穴を各締結装置本体に設けたので、１つの締結装置本体を隣接する２枚の足場板用の足場締結装置として共用することができる。
【００６３】
請求項８の発明の足場締結装置は、隣接する２枚の足場板間に締結装置本体を配置し、２枚の足場板の両方に押さえ部材を当接させたので、足場装置全体で使用する締結装置本体の数を少なくすることができる。
【００６４】
請求項９の発明の足場締結装置は、締め付けボルトの先端部が挿入される切欠部を締結装置本体に設け、この切欠部の内側に、締め付けボルトが螺着されるナットを固着したので、足場板の厚さの変化に容易に対応することができる。
【００６５】
請求項１０の発明の足場締結装置は、第１の係合片と、この第１の係合片に対して開閉可能に連結され、第１の係合片との間に足場板支持部材を保持する第２の係合片とを有する締結装置本体を用いたので、足場板支持部材の端部から締結装置本体を通す必要がなく、取付を容易にすることができる。
【図面の簡単な説明】
【図１】この発明の実施の形態１による足場締結装置が設けられているエレベータの足場装置を示す平面図である。
【図２】図１の横パイプと足場板との結合部を拡大して示す斜視図である。
【図３】図２のＩＩＩ−ＩＩＩ線に沿う断面図である。
【図４】図２のＩＶ−ＩＶ線に沿う断面図である。
【図５】図３の足場締結装置を示す斜視図である。
【図６】この発明の実施の形態２による足場締結装置を示す正面図である。
【図７】図６の右側面図である。
【図８】この発明の実施の形態３による足場締結装置を示す正面図である。
【図９】図８の右側面図である。
【図１０】この発明の実施の形態４による足場締結装置を示す側面図である。
【図１１】この発明の実施の形態５による足場締結装置を示す平面図である。
【図１２】図１１のＸＩＩ−ＸＩＩ線に沿う断面図である。
【図１３】図１１のＸＩＩＩ−ＸＩＩＩ線に沿う断面図である。
【図１４】図１１のＸＩＶ−ＸＩＶ線に沿う断面図である。
【図１５】この発明の実施の形態６による足場締結装置を示す側面図である。
【図１６】図１５のＸＶＩ−ＸＶＩ線に沿う断面図である。
【図１７】この発明の実施の形態７による足場締結装置を示す側面図である。
【図１８】図１７のＸＶＩＩＩ−ＸＶＩＩＩ線に沿う断面図である。
【図１９】従来のエレベータの足場装置の設置状態を示す側面図である。
【図２０】図１９の足場装置を示す平面図である。
【図２１】図１９の横パイプと足場板との結合部を拡大して示す斜視図である。
【符号の説明】
７横パイプ（足場板支持部材）、９，３５，４１足場板、９ａ押し出し穴、９ｂフランジ部、２１係合片、２２回動片、２２ａ切欠、２３回動ボルト、２４締め付けナット、２５ガイド部材、２７スライドボルト、２８蝶ナット、３１押さえ部材、３１ａ当接部、３２Ｕボルト、３２ａねじ部、３３，３８，４４蝶ナット、３５ａ，４１ａスライド溝、３６，４２スライドボルト、３７，４３，５１，６１，６５締結装置本体、５１ｃねじ穴、５２押さえ板（押さえ部材）、５３，６４締め付けボルト、６３押さえ部材、６１ｂ切欠部、６２ナット、６６第１の係合片、６７第２の係合片。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scaffold fastening device that is used in, for example, a scaffold device installed in a hoistway of an elevator and fastens a scaffold plate to a scaffold plate support member.
[0002]
[Prior art]
FIG. 19 is a side view showing an installation state of a conventional elevator scaffold device disclosed in, for example, Japanese Patent Laid-Open No. 8-34576, and FIG. 20 is a plan view showing the scaffold device of FIG. In the figure, 1 is the elevator hoistway, 2 is the top floor landing floor, 3 is the top floor landing entrance, 4 is a pair of vertical pipes standing in front of the landing entrance 3 and 5 is the vertical pipe 4 It is a fixed metal for fixing the lower end to the landing floor 2.
[0003]
Reference numeral 6 denotes a scaffolding bracket that abuts against the hoistway wall 1 a facing the landing entrance 3 and transmits the reaction force of the scaffold device to the hoistway wall 1 a, and 7 denotes between the scaffolding bracket 6 and the middle portion of the vertical pipe 4. A pair of horizontal pipes 8 that are installed in parallel and horizontally, 8 is an oblique pipe that is connected obliquely between the end of the horizontal pipe 7 on the scaffold bracket 6 side and the lower end of the vertical pipe 4, 9 A plurality of scaffolding plates supported on a pair of horizontal pipes 7.
[0004]
FIG. 21 is an enlarged perspective view showing a joint portion between the horizontal pipe 7 and the scaffold plate 9 of FIG. In the figure, reference numeral 10 denotes a pair of hooks engaged with the horizontal pipe 7 and the scaffold plate 9, and a first engagement hooked on the horizontal pipe 7 is at one end of the hooks 10. A portion 10a is provided. Further, a second engaging portion 10b bent in a U-shaped cross section is provided at the other end portion of the hooking tool 10. Reference numeral 11 denotes an annular rubber band that is hung between the second engaging portions 10 b of the pair of hooks 10 on the scaffold plate 9.
[0005]
Such a scaffold device is installed in the initial stage of the elevator installation process, and is used for, for example, an operation of installing a lifting device (not shown) on the upper part of the hoistway 1. At this time, simply placing the scaffolding plate 9 on the horizontal pipe 7 makes the scaffolding plate 9 unstable, so the scaffolding plate 9 needs to be firmly coupled to the horizontal pipe 7.
[0006]
For this reason, the hook 10 and the rubber band 11 are mounted in the vicinity of both ends of each scaffold plate 9. That is, the first engaging portion 10a of the hook 10 is hung on the horizontal pipe 7, and the rubber band 11 is mounted between the second engaging portions 10b. The rubber band 11 is pulled in a direction in which the pair of hooks 10 are pulled toward each other, whereby the scaffold plate 9 is coupled onto the horizontal pipe 7.
[0007]
[Problems to be solved by the invention]
In the conventional scaffold device configured as described above, it is necessary to change the size of the rubber band 11 in accordance with the change in the width of the scaffold plate 9. Further, until the rubber band 11 is attached, since the first engaging portion 10a is only hung on the horizontal pipe 7, care must be taken so that the hooking tool 10 does not fall, and workability was low. Furthermore, the life of the rubber band 11 is about one year, and it is necessary to always check the deterioration of the rubber band 11, but it is difficult to judge the degree of deterioration.
[0008]
The present invention has been made to solve the above-mentioned problems, and can easily cope with changes in the size of the scaffolding plate, etc., and is easy to attach and detach, and has a long life and reliability. The purpose is to obtain a high-end scaffold fastening device.
[0009]
[Means for Solving the Problems]
The scaffold fastening device according to the invention of claim 1 is for fastening a bar-like scaffold plate support member disposed horizontally and a scaffold plate having a plurality of holes and supported on the scaffold plate support member. The engagement piece engaged with the scaffolding plate support member is rotatably connected to the engagement piece, and is fixed to the rotation piece and the engagement piece that holds the scaffolding plate support member between the engagement piece and the engagement piece. A guide member that is slidable along the guide member, and that has a slide bolt that passes through one of the holes from the bottom of the scaffolding plate and a nut that is screwed into the slide bolt that penetrates the hole It is.
[0010]
According to a second aspect of the present invention, there is provided a scaffold fastening device comprising: a rotating bolt that is rotatably connected to the engaging piece; and a tightening nut that is screwed to the rotating bolt. The distal end portion is provided with a U-shaped notch through which the rotating bolt is put in and out by turning. By tightening the tightening nut while the rotating bolt is in the notch, the engagement piece and the turning piece are provided. A scaffolding plate support member is sandwiched between the two.
[0011]
A scaffold fastening device according to a third aspect of the present invention includes: a horizontally disposed rod-shaped scaffolding plate support member; and a scaffolding plate having a flange portion in contact with the scaffolding plate support member and supported on the scaffolding plate support member. For fastening, it has an abutting part that abuts on the flange part, a pressing member that presses the scaffolding plate on the scaffolding plate support member, and screw parts that penetrate this pressing member are provided at both ends. A U-bolt that sandwiches the scaffolding plate support member between the pressing member and a plurality of nuts that are screwed to the threaded portion.
[0012]
The scaffold fastening device according to the invention of claim 4 has a bar-like scaffold plate support member arranged horizontally and a slide groove continuously provided along the longitudinal direction, and is supported on the scaffold plate support member. For fastening the scaffold plate, a pair of slide bolts slidable along the slide groove, a fastening device main body for sandwiching the scaffold plate support member between the scaffold plate, and the slide bolt, respectively, A pair of nuts sandwiching both ends of the fastening device main body between the scaffold plate and the scaffolding plate are provided.
[0013]
A scaffold fastening device according to the invention of claim 5 is for fastening a horizontally-arranged rod-shaped scaffolding plate support member and a scaffolding plate supported on the scaffolding plate support member. Includes a fastening device main body that penetrates, a pressing member that presses the scaffolding plate onto the scaffolding plate support member from above the scaffolding plate, and a fastening bolt that passes through the pressing member and is screwed to the fastening device main body.
[0014]
The scaffold fastening device according to the invention of claim 6 has a fastening device body disposed on both sides of the scaffold plate in the width direction, and is disposed on the scaffolding plate so as to intersect with the scaffold plate, and both ends are fastened to the fastening device body by fastening bolts. A press plate to be connected is used as a press member.
[0015]
The scaffold fastening device according to the invention of claim 7 is provided with two screw holes into which the fastening bolts are screwed in each fastening device main body.
[0016]
The scaffold fastening device according to the invention of claim 8 is one in which a fastening device main body is disposed between two adjacent scaffold plates, and a pressing member is brought into contact with both of the two scaffold plates.
[0017]
The scaffold fastening device according to the invention of claim 9 is provided with a notch portion into which the tip of the fastening bolt is inserted in the fastening device body, and a nut to which the fastening bolt is screwed is fixed inside the notch portion. is there.
[0018]
The scaffold fastening device according to the invention of claim 10 is connected to the first engagement piece and the first engagement piece so as to be openable and closable, and the scaffold plate support member is interposed between the first engagement piece. The fastening device main body having the second engagement piece for holding the screw is used.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a plan view showing an elevator scaffold apparatus provided with a scaffold fastening apparatus according to Embodiment 1 of the present invention. In the figure, 1 is the elevator hoistway, 2 is the top floor landing floor, 3 is the top floor landing entrance, 4 is a pair of vertical pipes standing in front of the landing entrance 3 and 5 is the vertical pipe 4 A fixing metal 6 for fixing the lower end portion to the landing floor 2 is a scaffolding bracket that contacts the hoistway wall 1a facing the landing doorway 3 and transmits the reaction force of the scaffolding device to the hoistway wall 1a.
[0020]
Reference numeral 7 denotes a pair of horizontal pipes as rod-like scaffolding plate support members that are laid horizontally and parallel to each other between the scaffolding bracket 6 and the intermediate portion of the vertical pipe 4, and 8 is the scaffolding bracket 6 of the horizontal pipe 7. An oblique pipe 9 that is obliquely connected between the side end portion and the lower end portion of the vertical pipe 4 is a plurality of scaffold plates supported on a pair of horizontal pipes 7. Are provided with a large number of extrusion holes 9a arranged in order to prevent slipping and weight reduction. In addition, the side view of the whole scaffold apparatus is the same as that of FIG.
[0021]
2 is an enlarged perspective view showing a joint portion between the horizontal pipe and the scaffolding plate of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 4 is IV-IV of FIG. FIG. 5 is a perspective view showing the scaffold fastening device of FIG. 3.
[0022]
In the figure, 21 is an engagement piece engaged with the horizontal pipe 7, 22 is connected to the engagement piece 21 so as to be rotatable about a shaft 21 </ b> A, and holds the horizontal pipe 7 between the engagement piece 21. The rotary piece 22 is provided with a U-shaped notch 22 a at the tip of the rotary piece 22. A rotating bolt 23 is connected to the engaging piece 21 so as to be rotatable about a shaft 21B. The rotating bolt 23 is inserted into and removed from the notch 22a. A tightening nut 24 is screwed onto the rotating bolt 23.
[0023]
Reference numeral 25 denotes a guide member fixed to the engaging piece 21, 26 denotes a slide piece slidable along the guide member 25, and 27 denotes a slide bolt fixed to the slide piece 26 and passed through the push hole 9 a of the scaffold plate 9. , 28 is a wing nut screwed to the slide bolt 27.
[0024]
The scaffold fastening device of the first embodiment includes an engagement piece 21, a turning piece 22, a turning bolt 23, a tightening nut 24, a guide member 25, a slide piece 26, a slide bolt 27, and a wing nut 28.
[0025]
When the scaffold device is assembled using the above-described scaffold fastening device, the scaffold fastening device is first temporarily fixed to each of the pair of horizontal pipes 7. That is, the rotating piece 22 and the rotating bolt 23 are opened as shown by a two-dot chain line in FIG. 3, and the engaging piece 21 is engaged with the horizontal pipe 7. Thereafter, as shown by the solid line in FIG. 3, the rotating piece 22 and the rotating bolt 23 are closed and the tightening nut 24 is lightly tightened. In this state, the scaffold fastening device can be easily slid along the horizontal pipe 7.
[0026]
Next, the position of the engagement piece 21 in the axial direction of the horizontal pipe 7 and the position of the slide piece 26 along the longitudinal direction of the guide member 25 (direction perpendicular to the axial direction of the horizontal pipe 7) are adjusted. However, the slide bolt 27 is passed through the extrusion hole 9 a of the scaffold plate 9. At this time, the wing nut 28 is removed, and after passing through the extrusion hole 9a, the wing nut 28 is screwed onto the slide bolt 27 from the upper side of the scaffold plate 9.
[0027]
Moreover, as shown in FIG. 1, when using one set of left and right scaffold fastening devices for one scaffold plate 9, it is preferable to pass the slide bolts 27 through the extrusion holes 9a located diagonally. . Thereby, the scaffold board 9 can be stably fixed on the horizontal pipe 7.
[0028]
In this way, when the wing nut 28 is tightened and the scaffold plate 9 is fixed to the scaffold fastening device, the fastening bolt 23 is tightened to firmly fix the scaffold fastening device also to the lateral pipe 7. By repeating such operations, the scaffolding plates 9 can be fixed on the horizontal pipe 7 one by one from the landing side in FIG.
[0029]
Further, before tightening the tightening bolt 23, the temporarily fixed scaffold plate 9 is slid to the back side of the hoistway 1 and the next scaffold plate 9 is temporarily fixed in front of it. After temporarily fixing the scaffold plate 9, the tightening bolts 23 may be tightened together. Thereby, the temporary fixing operation | work of all the scaffold boards 9 can be performed on the landing side.
[0030]
According to such a scaffold fastening device, the position of the slide bolt 27 can be freely adjusted with respect to the horizontal pipe 7 before the fastening nut 24 is tightened. The scaffold plate 9 can be firmly fixed to the horizontal pipe 7 using the extruded hole 9a. In addition, it is possible to easily cope with changes in the thickness and width of the scaffolding plate 9, and easy to attach and detach. Furthermore, it can be used repeatedly over a long period of time, and high reliability can be ensured.
[0031]
Embodiment 2. FIG.
6 is a front view showing a scaffold fastening device according to Embodiment 2 of the present invention, FIG. 7 is a right side view of FIG. 6, and the overall structure of the scaffold device is the same as that of FIG. In the figure, flange portions (folded portions) 9 b that are in contact with the horizontal pipe 7 are formed at both ends in the width direction of the scaffold plate 9. Reference numeral 31 denotes a pressing member that presses the scaffold plate 9 onto the horizontal pipe 7, and the pressing member 31 engages with the contact portion 31 a that contacts the flange portion 9 b of the scaffold plate 9 and the outer peripheral surface of the horizontal pipe 7. And a tapered engagement groove 31b.
[0032]
Reference numeral 32 denotes a U bolt that clamps the horizontal pipe 7 between the pressing member 31, and screw portions 32 a are provided at both ends of the U bolt 32. Moreover, the screw part 32a has penetrated the pressing member 31, respectively. Reference numeral 33 denotes a wing nut screwed to the screw portion 32a.
[0033]
In such a scaffold fastening device, the wing nut 33 is sandwiched between the pressing member 31 and the U-bolt 32 and the flange portion 9b is sandwiched between the abutting portion 31a and the lateral pipe 7. The scaffolding plate 9 is firmly fixed to the horizontal pipe 7 by tightening. Further, by arranging two sets of scaffold fastening devices on a diagonal line with respect to one scaffold plate 9, the scaffold plate 9 can be stably fixed to the horizontal pipe 7.
[0034]
Further, the flange portion 9b is usually provided continuously along the longitudinal direction (left and right direction in FIG. 6) of the scaffold plate 9, and before the wing nut 33 is tightened, the position of the scaffold fastening device is horizontal. Since it can be freely adjusted in the axial direction of the pipe 7, it can easily cope with changes in the thickness and width of the scaffold plate 9 and can be easily attached and detached. Furthermore, it can be used repeatedly over a long period of time, and high reliability can be ensured.
[0035]
Embodiment 3 FIG.
Next, FIG. 8 is a front view showing a scaffold fastening device according to Embodiment 3 of the present invention, FIG. 9 is a right side view of FIG. 8, and the overall structure of the scaffold device is substantially the same as FIG. In the figure, reference numeral 35 denotes a scaffold plate supported on the horizontal pipe 7, and slide grooves 35 a are continuously provided along the longitudinal direction at both ends in the width direction of the scaffold plate 35. Reference numeral 36 denotes a pair of slide bolts that can slide along the slide groove 35a.
[0036]
Reference numeral 37 denotes a U-shaped fastening device main body that sandwiches the horizontal pipe 7 between the scaffold plate 35, and grooves 37 a through which the slide bolts 36 pass are provided at both ends of the fastening device main body 37. Reference numeral 38 denotes a pair of wing nuts that are respectively screwed to the slide bolts 36 and sandwich both end portions of the fastening device main body 37 between the width direction end surfaces of the scaffold plate 35.
[0037]
In such a scaffold device, the number of scaffold plates 35 × two slide bolts 36 are passed through slide grooves 35 a on both sides of the scaffold plate 35. Then, the fastening device main body 37 is engaged with the horizontal pipe 7, and the slide bolt 36 is passed through the groove 37 a of the fastening device main body 37 to tighten the wing nut 38. Thereby, the scaffold board 35 is firmly fixed on the horizontal pipe 7. Further, by arranging two sets of scaffold fastening devices on a diagonal line with respect to one scaffold plate 35, the scaffold plate 35 can be stably fixed to the horizontal pipe 7.
[0038]
Embodiment 4 FIG.
Next, FIG. 10 is a side view showing a scaffold fastening device according to Embodiment 4 of the present invention. In the figure, reference numeral 41 denotes a scaffold plate supported on the horizontal pipe 7, and a slide groove 41 a is continuously provided along the longitudinal direction at the center in the width direction of the back surface of the scaffold plate 41. Reference numeral 42 denotes a pair of slide bolts that can slide along the slide groove 41a.
[0039]
Reference numeral 43 denotes an Ω-type fastening device body that sandwiches the horizontal pipe 7 between the scaffold plate 41 and a pair of slide bolts 42 penetrates both ends of the fastening device body 43. Reference numeral 44 denotes a pair of wing nuts that are screwed to the slide bolts 42 and sandwich the both ends of the fastening device main body 43 between the scaffold plate 41.
[0040]
In this example, a total of two sets of scaffold fastening devices are attached to one scaffold plate 41, one set near each of both ends in the longitudinal direction. Thereby, the scaffold board 41 is firmly and stably fixed on the horizontal pipe 7. Thus, even if it is the scaffolding board 41 in which the slide groove 41a exists in the center part of the width direction, it can fix to the horizontal pipe 7 easily.
[0041]
Embodiment 5. FIG.
11 is a plan view showing a scaffold fastening device according to Embodiment 5 of the present invention, FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11, and FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 14 and 14 are cross-sectional views taken along line XIV-XIV in FIG. 11, and the overall structure of the scaffold device is substantially the same as FIG.
[0042]
In the figure, 51 is a fastening device main body attached to the horizontal pipe 7, and this fastening device main body 51 is provided with a through hole 51a through which the horizontal pipe 7 can slide. The diameter of the through hole 51 a is substantially equal to the outer diameter of the horizontal pipe 7. Further, the fastening device main body 51 has a flange portion 51 b that forms a flat surface flush with the upper surface of the scaffold plate 9. Two screw holes 51c are provided in the flange portion 51b. Further, the fastening device main body 51 is disposed on both sides in the width direction in the vicinity of both ends in the longitudinal direction of the scaffold plate 9.
[0043]
52 is a plurality of pressing plates as pressing members arranged on the scaffolding plate 9 so as to intersect the scaffolding plate 9 in the vicinity of both ends in the longitudinal direction of the scaffolding plate 9, and 53 penetrates both ends of the pressing plate 52. A plurality of tightening bolts screwed into the screw holes 51c.
[0044]
In such a scaffold fastening device, the scaffolding plate 9 is firmly placed on the horizontal pipe 7 by crossing the retaining plate 52 with the scaffolding plate 9 and fixing both ends of the retaining plate 52 to the flange portion 51b with the fastening bolts 53. Pressed down. Further, the fastening device main body 51 can slide along the horizontal pipe 7 and can easily cope with a change in the width dimension of the scaffold plate 9.
[0045]
Furthermore, since the fastening bolts 53 may be attached or removed on the upper side of the scaffold plate 9, the attaching / detaching work is also easy. Furthermore, it can be used repeatedly over a long period of time, and high reliability can be ensured. Further, the scaffold plate does not require a slide groove or an extrusion hole, and can be applied to various scaffold plates.
[0046]
Embodiment 6 FIG.
15 is a side view showing a scaffold fastening device according to Embodiment 6 of the present invention, FIG. 16 is a sectional view taken along line XVI-XVI in FIG. 15, and FIG. 15 corresponds to a right side view in FIG. The overall structure of the scaffold device is almost the same as that shown in FIG.
[0047]
In the figure, 61 is a fastening device main body attached to the horizontal pipe 7, and this fastening device main body 61 is provided with a through hole 61a through which the horizontal pipe 7 can slide. The diameter of the through hole 61 a is substantially equal to the outer diameter of the horizontal pipe 7. The fastening device body 61 is provided with a notch 61b. 62 is a nut fixed inside the notch 61b.
[0048]
Reference numeral 63 denotes a pressing member that presses the scaffolding plate 9 against the horizontal pipe 7 at both longitudinal ends of the scaffolding plate 9, and 64 denotes a fastening bolt that passes through the pressing member 63 and is screwed to the nut 62.
[0049]
In such a scaffold fastening device, a part of the pressing member 63 is placed on the scaffolding plate 9, and the pressing bolt 64 is screwed onto the nut 62 and tightened, whereby the scaffolding plate 9 is firmly pressed onto the horizontal pipe 7. . Further, the fastening device main body 61 can slide along the horizontal pipe 7 and can easily cope with a change in the width dimension of the scaffold plate 9. Furthermore, it is possible to easily cope with a change in the thickness of the scaffold plate 9 within the range of the depth of the notch 61b.
[0050]
Furthermore, since it is only necessary to attach or remove the holding bolt 64 on the upper side of the scaffold plate 9, the attaching / detaching work is also easy. Moreover, it can be used repeatedly over a long period of time, and high reliability can be ensured. Furthermore, the scaffold plate does not require a slide groove or an extrusion hole, and can be applied to various scaffold plates.
[0051]
Embodiment 7 FIG.
17 is a side view showing a scaffold fastening device according to Embodiment 7 of the present invention, FIG. 18 is a sectional view taken along line XVIII-XVIII in FIG. 17, and FIG. 17 corresponds to a right side view in FIG. The overall structure of the scaffold device is almost the same as that shown in FIG.
[0052]
In the figure, reference numeral 65 denotes a fastening device main body attached to the horizontal pipe 7. The fastening device main body 65 includes a first engagement piece 66 to which a nut 62 is fixed, and the first engagement piece 66. A second engagement piece 67 which is connected to the first engagement piece 66 and holds the lateral pipe 7 between the first engagement piece 66 and a connection tool for connecting the first and second engagement pieces 66, 67. (Bolts and nuts) 68.
[0053]
Reference numeral 69 denotes a pressing member used at a position where there is no adjacent scaffold plate 9, and the pressing member 69 has a pipe contact portion 69 a that contacts the horizontal pipe 7. In the sixth embodiment, the pressing member 69 is used at a position where there is no adjacent scaffold plate 9.
[0054]
According to such a scaffold fastening device, by removing one fastener 68, the second engagement piece 67 can be rotated and opened, for example, as shown by a two-dot chain line in FIG. Therefore, it is not necessary to pass the fastening device main body 65 through the horizontal pipe 7 in advance, and workability is improved.
[0055]
In the above example, the scaffold fastening device that fastens the scaffolding plates 9, 35, 41 on the two horizontal pipes 7 has been described. However, the scaffold fastening device can also be used for fastening to three or more scaffolding plate support members. Moreover, it can be used also when a scaffold board is supported by one scaffold board support member and a part of structure.
[0056]
【The invention's effect】
As described above, the scaffold fastening device according to the first aspect of the present invention is the engagement piece that is engaged with the scaffold plate support member, is pivotally connected to the engagement piece, and the scaffold is between the engagement piece. A pivot piece that holds the plate support member, a guide member fixed to the engagement piece, a slide bolt that is slidable along the guide member and is passed through any of the holes from the bottom of the scaffold plate, and Since the nut screwed to the slide bolt penetrating the hole is provided, it is possible to easily cope with changes in the size such as the width and thickness of the scaffolding plate, and the attachment / detachment work is also easy. Further, it can be used repeatedly over a long period of time, and the reliability can be improved.
[0057]
According to a second aspect of the present invention, there is provided a scaffold fastening device comprising: a rotating bolt that is rotatably connected to the engaging piece; and a tightening nut that is screwed to the rotating bolt. The part is provided with a U-shaped notch through which the turning bolt is inserted and removed by turning. By tightening the tightening nut with the turning bolt in the notch, the engagement piece and the turning piece Since the scaffolding plate support member is sandwiched between them, the attachment to the scaffolding plate support member can be easily performed with a simple structure.
[0058]
A scaffold fastening device according to a third aspect of the present invention has an abutting portion that abuts against the flange portion of the scaffold plate, a pressing member that presses the scaffold plate on the scaffold plate supporting member, and a screw portion that passes through the pressing member at both ends. Provided with a U bolt that holds the scaffolding plate support member between the holding member and a plurality of nuts screwed to the threaded portion, so that the size, such as the width and thickness of the scaffolding plate is provided. It is possible to easily cope with the change in the distance and also the attachment / detachment work is easy. Further, it can be used repeatedly over a long period of time, and the reliability can be improved.
[0059]
According to a fourth aspect of the present invention, there is provided a scaffold fastening device including a pair of slide bolts slidable along a slide groove of the scaffold plate, a fastening device main body for sandwiching a scaffold plate support member between the scaffold plate, and a screw to the slide bolt. Since it is provided with a pair of nuts that are attached and sandwiched between both ends of the fastening device main body between the scaffold plate and the scaffold plate, it can easily cope with changes in size such as the width of the scaffold plate and is easy to attach and detach. Further, it can be used repeatedly over a long period of time, and the reliability can be improved.
[0060]
The scaffold fastening device of the invention of claim 5 is a fastening device main body through which the scaffolding plate support member penetrates, a pressing member that presses the scaffolding plate against the scaffolding plate support member from above the scaffolding plate, and a fastening device that passes through the pressing member. Since the fastening bolt that is screwed onto the main body is provided, it is possible to easily cope with changes in the size such as the width of the scaffolding plate, and the attachment and detachment work is also easy. Further, it can be used repeatedly over a long period of time, and the reliability can be improved.
[0061]
The scaffold fastening device of the invention of claim 6 has a fastening device body disposed on both sides in the width direction of the scaffolding plate, is disposed on the scaffolding plate so as to cross the scaffolding plate, and both ends are connected to the fastening device body by fastening bolts. Since the pressing plate to be used is used as the pressing member, the scaffolding plate can be firmly pressed onto the scaffolding plate support member with a simple structure.
[0062]
In the scaffold fastening device according to the seventh aspect of the present invention, since the two screw holes into which the fastening bolts are screwed are provided in each fastening device main body, one fastening device main body is used for two adjacent scaffold plates. Can be shared as.
[0063]
The scaffold fastening device according to the invention of claim 8 is used in the entire scaffold device because the fastening device body is disposed between two adjacent scaffold plates and the pressing member is brought into contact with both of the two scaffold plates. The number of fastening device main bodies can be reduced.
[0064]
In the scaffold fastening device according to the ninth aspect of the present invention, the notch portion into which the tip of the fastening bolt is inserted is provided in the fastening device body, and the nut to which the fastening bolt is screwed is fixed inside the notch portion. It is possible to easily cope with changes in the thickness of the plate.
[0065]
The scaffold fastening device of the invention of claim 10 is connected to the first engagement piece so as to be openable and closable with respect to the first engagement piece, and the scaffold plate support member is interposed between the first engagement piece. Since the fastening device main body having the second engaging piece to be held is used, it is not necessary to pass the fastening device main body from the end of the scaffolding plate support member, and attachment can be facilitated.
[Brief description of the drawings]
FIG. 1 is a plan view showing an elevator scaffold apparatus provided with a scaffold fastening apparatus according to Embodiment 1 of the present invention.
FIG. 2 is an enlarged perspective view showing a joint portion between a horizontal pipe and a scaffold plate in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a perspective view showing the scaffold fastening device of FIG. 3;
FIG. 6 is a front view showing a scaffold fastening device according to Embodiment 2 of the present invention.
7 is a right side view of FIG. 6. FIG.
FIG. 8 is a front view showing a scaffold fastening device according to Embodiment 3 of the present invention.
FIG. 9 is a right side view of FIG.
FIG. 10 is a side view showing a scaffold fastening device according to Embodiment 4 of the present invention.
FIG. 11 is a plan view showing a scaffold fastening device according to Embodiment 5 of the present invention.
12 is a cross-sectional view taken along line XII-XII in FIG.
13 is a cross-sectional view taken along line XIII-XIII in FIG.
14 is a cross-sectional view taken along line XIV-XIV in FIG.
FIG. 15 is a side view showing a scaffold fastening device according to Embodiment 6 of the present invention.
16 is a cross-sectional view taken along line XVI-XVI in FIG.
FIG. 17 is a side view showing a scaffold fastening device according to Embodiment 7 of the present invention.
18 is a cross-sectional view taken along line XVIII-XVIII in FIG.
FIG. 19 is a side view showing an installed state of a conventional elevator scaffold device.
20 is a plan view showing the scaffold device of FIG. 19. FIG.
21 is an enlarged perspective view showing a joint portion between the horizontal pipe and the scaffolding plate of FIG.
[Explanation of symbols]
7 Horizontal pipe (scaffold plate support member), 9, 35, 41 Scaffold plate, 9a extrusion hole, 9b flange, 21 engagement piece, 22 rotation piece, 22a notch, 23 rotation bolt, 24 tightening nut, 25 guide Member, 27 Slide bolt, 28 Wing nut, 31 Holding member, 31a Contact part, 32 U bolt, 32a threaded part, 33, 38, 44 Wing nut, 35a, 41a Slide groove, 36, 42 Slide bolt, 37, 43 , 51, 61, 65 Fastening device main body, 51c screw hole, 52 holding plate (pressing member), 53, 64 tightening bolt, 63 pressing member, 61b notch, 62 nut, 66 first engaging piece, 67 second Engagement piece.

Claims

In a scaffold fastening device for fastening a horizontally disposed rod-shaped scaffolding plate support member and a scaffolding plate having a plurality of holes and supported on the scaffolding plate support member,
An engagement piece engaged with the scaffold plate support member;
A rotating piece that is rotatably connected to the engaging piece and holds the scaffolding plate support member between the engaging piece,
A guide member fixed to the engagement piece;
It is slidable along the guide member, and includes a slide bolt that passes through one of the holes from the lower side of the scaffold plate, and a nut that is screwed to the slide bolt that penetrates the hole. Scaffolding fastening device characterized by this.

A rotating bolt that is rotatably connected to the engaging piece and a tightening nut that is screwed to the rotating bolt are provided, and the rotating bolt rotates at the tip of the rotating piece. A U-shaped notch that is inserted and withdrawn is provided, and the scaffolding plate is interposed between the engaging piece and the rotating piece by tightening the tightening nut in a state where the rotating bolt enters the notch. The scaffold fastening apparatus according to claim 1, wherein the support member is clamped.

In a scaffold fastening device for fastening a horizontally disposed rod-shaped scaffolding plate support member and a scaffolding plate having a flange portion in contact with the scaffolding plate support member and supported on the scaffolding plate support member,
A pressing member that has a contact portion that contacts the flange portion, and that presses the scaffold plate on the scaffold plate support member;
Screw portions that penetrate the pressing member are provided at both ends, and a U bolt that sandwiches the scaffold plate support member between the pressing member and a plurality of nuts that are screwed to the screw portion. Scaffolding fastening device characterized by that.

Scaffolding fastening device for fastening a bar-like scaffolding plate support member arranged horizontally and a scaffolding plate having a slide groove continuously provided along the longitudinal direction and supported on the scaffolding plate support member In
A pair of slide bolts slidable along the slide groove,
A fastening device body that sandwiches the scaffold plate support member between the scaffold plate and a pair of nuts that are screwed to the slide bolt and sandwich both ends of the fastening device body between the scaffold plate. A scaffold fastening device comprising the scaffold fastening device.

In a scaffold fastening device for fastening a horizontally disposed rod-like scaffolding plate support member and a scaffolding plate supported on the scaffolding plate support member,
Fastening device body through which the scaffold plate support member penetrates,
A scaffold comprising: a pressing member that presses the scaffold plate against the scaffold plate support member from above the scaffold plate; and a fastening bolt that passes through the pressing member and is screwed to the fastening device main body. Fastening device.

The fastening device body is disposed on both sides of the scaffolding plate in the width direction, the pressing members are disposed on the scaffolding plate so as to intersect the scaffolding plate, and both ends are connected to the fastening device body by fastening bolts. The scaffold fastening device according to claim 5, wherein the scaffold fastening device is a pressing plate.

The scaffold fastening device according to claim 6, wherein each fastening device body is provided with two screw holes into which fastening bolts are screwed.

6. The scaffold fastening device according to claim 5, wherein the fastening device body is disposed between the two adjacent scaffold plates, and the pressing member is in contact with both of the two scaffold plates.

The fastening device main body is provided with a notch portion into which the tip end portion of the fastening bolt is inserted, and a nut to which the fastening bolt is screwed is fixed inside the notch portion. The scaffold fastening device according to claim 8.

The fastening device main body is connected to the first engagement piece so as to be openable and closable with respect to the first engagement piece, and holds a scaffold plate support member between the first engagement piece and the second engagement piece. It has an engagement piece, The scaffold fastening apparatus in any one of Claim 5 thru | or 9 characterized by the above-mentioned.