JP4131425B2 - Rear hitting anchor device for ceiling - Google Patents

Rear hitting anchor device for ceiling Download PDF

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Publication number
JP4131425B2
JP4131425B2 JP08796498A JP8796498A JP4131425B2 JP 4131425 B2 JP4131425 B2 JP 4131425B2 JP 08796498 A JP08796498 A JP 08796498A JP 8796498 A JP8796498 A JP 8796498A JP 4131425 B2 JP4131425 B2 JP 4131425B2
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Prior art keywords
ceiling
drill
column
anchor device
drilling
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JPH11262914A (en
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久吉 杉山
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Toshiba Plant Systems and Services Corp
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Toshiba Plant Systems and Services Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、建屋建築工事などにおけるコンクリート打設後に、特に天井面80を対象とするアンカー敷設作業のための、コンクリート穿孔装置に関するものである。
【0002】
【従来の技術】
一般に、図9の如くコンクリート製天井面80への後打ちアンカーは、スタッドボルト等、敷設アンカー材のサイズに合わせた直径と深さを有する孔を天井面80に垂直に穿設し、該孔とアンカー材との間隙で、固化材が充満・硬化するようにして敷設される。
その穿孔作業は、作業者の手が天井面80に届く高所に仮設の足場を組み、該仮設足場上で、作業者がドリル2を支えて行われる。
この場合には、まず、ドリルに働く重力とドリルの送り力とを、上向きに加え続ける必要がある。また、ドリルに発生する連続的な激しい振動、あるいは突如として回転方向に発生する噛み込み反力にも耐えなくてはならない。更に、それが高所の足場上の作業であり、頭上の至近距離で強烈な騒音と塵埃が発生するなど、作業条件は最悪であった。しかも完工数は穿孔径20mmの場合、1人1日5個が精一杯であった。
【0003】
また、上記の作業条件の劣悪さを改善すべく、一部ではそれなりに工夫された工具も用いられた。すなわち取扱い性に配慮して、軽量に、かつ上半と下半とがガス圧によって相対的に伸びるように構成された支柱の上端にドリルを固定し、支柱の下端を床面で支えることによって送り力が得られるものである。作業者は該支柱を支えれば穿孔作業を進行させることが可能で、作業条件はそれなりに改善されていた。しかし、可能な穿孔径は10mmが限度で、寸法精度も同様に芳しくない面があった。
【0004】
このように穿孔可能な寸法上の限度から、アンカーによって所要の荷重容量を確保するには、上記人力か工具かを問わず穿孔数が増す傾向があった。
また、一般に穿孔作業は、しばしば鉄筋に行きあたる。この場合には、すでに天井面80に穿設した垂直な直孔81と同一開口位置から、鉄筋を避けて斜めに斜孔82を追加穿孔する必要が生じる。しかるに斜孔82の穿設作業は、人力によっても工具によってもドリルが既設の直孔81側に流されて、いっそうの熟練と労力とを必要とした。さらに1建築工事現場の穿孔数が数百箇所に達することも希ではなく、該穿孔作業を格段に能率的に、より精度良く、施行できることが切望されていた。
【0005】
【発明が解決しようとする課題】
本発明は上記の事情に鑑みてなされたもので、敷設アンカーの負荷容量の増大要求に応えて穿孔サイズの拡大を可能とするのみならず、直孔81か斜孔82かを問わず作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することを課題とするものである。
【0006】
【課題を解決するための手段】
前記課題を解決するための請求項1に記載の発明は、上端を天井面に下端を床面に突っ張って、一時的に堅固に設定される伸縮自在の支柱4と、支柱4に取り付けられた送り機構3と、送り機構3に取り付けられて送り出されるコンクリート穿孔用ドリル2と、を具備し
支柱4が、ドリル2の高さ設定の迅速性に優れた第1の伸縮機構43を有する支柱本体41と、上下方向への突っ張り力に優れた第2の伸縮機構を有するジャッキ42と、を有し、
支柱4の上端に、天井面との滑りを防ぐための、クッション材61と天井面に咬着されるピン62と、で構成された滑り止め機構6を備えたことを特徴とする天井専用後打アンカー装置である。
該天井専用後打アンカー装置によれば、上端を天井面80に下端を床面90に突っ張って一時的に堅固に設定される支柱4を備えたので、ドリル2と送り機構3とが穿孔反力に耐えて安定かつ堅固に支持され、したがって、本来のドリル2の機能を遺憾なく発揮することができる。すなわち、穿孔サイズの拡大を可能とするのみならず、作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0007】
請求項2の発明は、支柱4に取り付けられて、送り機構3を支柱の軸線に対して斜めになるように1点の回りに回動自在に支持する回動支持機構5を備えたことを特徴とする請求項1に記載の天井専用後打アンカー装置である。
該天井専用後打アンカー装置によれば、送り機構3に取付られたドリル2が回動支持機構5によって1点の回りに回動自在に支持されたので、作業者はドリル2の向きを設定していれば堅固な固定条件が得られる。よって図9に示す直孔81・斜孔82の違いによる熟練や労力の問題は解消される。すなわち、穿孔サイズの拡大を可能とするのみならず、直孔81か斜孔82かを問わず作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0008】
さらに、支柱4が、ドリル2の高さ設定の迅速性に優れた第1の伸縮機構43を備えた支柱本体41と、上下方向への突っ張り力に優れた第2の伸縮機構を備えたジャッキ42と、を具備するので、分解・再組立・支柱の堅固な設定・天井高さにある穿孔位置へのドリルの設定、などを迅速かつ確実に行うことが可能となり、建築現場において建屋間や建屋内の階を移動しながら次々に穿孔作業を行うに際して、該装置の運搬性にも優れている。すなわち、穿孔サイズの拡大を可能とするのみならず、直孔81か斜孔82かを問わず作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0009】
そして、支柱4の上端に、天井面との滑りを防ぐためのクッション材61とピン62とで構成された滑り止め機構6、を備えているので、ドリルの反力や振動に対し、ジャッキ42の作用と連働して支柱4の上端での強固な固定条件が確保される。すなわち、穿孔サイズの拡大を可能とするのみならず、作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0010】
請求項の発明は、ドリル2の送り機構3が、電動モータ31によって駆動され、かつ送り速度が制御可能に構成されたことを特徴とする請求項1に記載の天井専用後打アンカー装置である。
該天井専用後打アンカー装置によれば、送り機構3が電動モータ31によって駆動され、送り速度が制御可能に構成されたので、最適な送り速度の制御を実現している。したがって、穿孔サイズや直孔81・斜孔82に合わせてドリル2の機能が十分に引き出され、穿孔作業を能率的かつ正確に行うことができる。すなわち、穿孔サイズの拡大を可能とするのみならず、直孔81か斜孔82かを問わず作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0011】
請求項の発明は、支柱4が、天井面と床面との間で一時的に堅固に設定される以前の設定作業において、天井面を利用せず、床面で自立する脚7を備えたことを特徴とする請求項1に記載の天井専用後打アンカー装置である。
該天井専用後打アンカー装置によれば、該装置が、床面90だけを利用して自立できる脚7を支柱4に備えたので、該装置を組み立て、ドリル2を天井面80の所望の穿孔箇所へ仮設定する作業、あるいは該装置の分解作業について、その労力を著しく軽減し、かつ迅速に進捗させることができる。すなわち、穿孔サイズの拡大を可能とするのみならず、直孔81か斜孔82かを問わず作業者の労力を著しく軽減し、より正確に、より能率的に穿孔できる天井専用後打アンカー装置を提供することができる。
【0012】
【発明の実施の形態】
次に、本発明の実施の形態を図面に基づいて説明する。
図1は本発明の天井専用後打アンカー装置の1例を示す側面図で、以下、図2は図1のドリル2を示す部分断面図、図3は図1の送り機構3の内部を示す斜視図、図4は図1のジャッキ42の機構の縦断面略図、図5は伸縮機構の説明図、図6は支柱本体41の部分断面図、図7は伸縮機構43の説明図、図8は図1の滑り止め機構6および回動支持機構5を示す断面図、図9は天井面80における穿孔およびアンカー83の取付状態を示す断面図である。
【0013】
図1に示す本発明の天井専用後打アンカー装置(以下、本装置1と呼ぶ)は、通常ハンマードリルと呼ばれるコンクリート穿孔用のドリル2と、そのドリル2に電動モータ31で送りを与える送り機構3と、上端を天井面80に、下端を床面90に突っ張って一時的に堅固に設定され、支柱本体41とジャッキ42とで構成される支柱4と、支柱4に取り付けられて、送り機構3を支柱本体41の上端のまわりに、その本体41の軸線に対して斜めになるように回動自在に支持する回動支持機構5と、支柱4の上端に設けられその横滑りを防ぐクッション材61とピン62とで構成される滑り止め機構6と、ジャッキ42を除く本装置1が自立できる機能を有する脚7とを具備している。かくして天井面80に直孔81ないしは斜孔82を穿設することが可能で、該孔にアンカー83が敷設される。
【0014】
次に、図1〜図3を参照して上記の天井専用後打アンカー装置1の作用を説明する。
本装置1におけるドリル2は、切刃21を取り替えて、最大穿孔径20mm、最大深さ230mmまで穿孔可能である。作動中に鉄筋との干渉や噛み込みが生じれば、自動停止する機能を有する市販品が用いられる。切刃部で発生する塵埃は、切刃21と同軸回転するファン22により、パイプ状に構成された切刃21の内側を通って集塵バッグ23に集められる。切刃21とファン22のための動力源は電気で、電源は、送り機構3と一体構成のアーム37の先端に設けられた制御箱36から電源コードで供給される。
【0015】
送り機構3の動力源も電気である。ドリル2の送り力と送り量は、図3の如くまず、電動モータ31によりネジ棒32が回転し、ネジ棒32に螺合されたスライドテーブル33に与えられる。次いで、スライドテーブル33にクッション34を介して取り付けられたドリル2(図1)に伝達される。スライドテーブル33は、これに嵌入された2本のガイド棒35と摺働しつつ直進する。その速度は、切刃21のサイズその他に合わせて、制御箱36で電圧によって設定される。この場合、最適送り速度の微妙な設定は油空圧駆動では望みにくい所で、本装置1の能率性、信頼性の原点でもある。動力源の電気は、建築中の建屋や階を移動しながら穿孔作業を行う面からも、入手しやすく作業性に優れている。
送り機構3の一部として構成されたアーム37の先端に、ハンドル38と前記制御箱36とが配設されている。本装置1においては、作業者は該ハンドル38を握り、ドリル2の送り速度を設定し、後述する回動支持機構5の威力のもと、穿設する孔の向き、すなわち直孔81ないし斜孔82のためのドリル2の角度を設定し、穿孔作業の進行を監視しながら、制御箱36によってドリル2を制御する。
【0016】
支柱4は、ドリル2の設定高さを迅速に決めるための伸縮自在の支柱本体41と、支柱4が全体として天井面80と床面90とに向けて突っ張り力を発揮するためのジャッキ42とによって構成されている。
支柱本体41の伸縮機構43(図5〜図7)の動力源はやはり電気で、ウォーム付モータ44によって駆動される。
次に、伸縮機構43の構造・作用を説明する。脚7と一体に組まれた長尺ネジ棒45に、大型ナット46が螺合されている。この大型ナット46は、スラスト軸受48を介して、外筒47の下端を支持している。すなわち大型ナット46が回転すれば、外筒47が大型ナット46と共に長尺ネジ棒45に沿って上下するように構成されている。いっぽう大型ナット46の外径部には歯車が形成されていて、この歯車にウォームを歯合させているウォーム付モータ44が、外筒47の下端に固定されている。かくしてウォーム付モータ44のスイッチを投入すれば、外筒47は上昇方向にも下降方向にも、迅速にその位置を移動できる。
【0017】
なお、長尺ネジ棒45と外筒47との間に長手方向の滑りキーが設けられていて、外筒47の回転が防がれている。また、長尺ネジ棒45の上端はピストン状に形成されて外筒47内面を摺動し、支柱本体41が長手方向に圧縮荷重を受けても屈曲を生じないように構成されている。
いっぽう、穿孔作業中の外乱による天井面80・床面90の変位や、ウォーム・ギヤー部のバックラッシュ、あるいは、支柱4の上下の支点における接触面の形状変化、などに起因する支点間距離の微細な変化に追随するために、支柱本体41には図5の如く皿バネブロック49を備えている。該機能だけを追求すれば油空圧を利用したジャッキ機構は理想的である。しかし、動力源の入手性、統一性を勘案すれば、本装置1の実施例は、総合的に優れた選択の一つを提供している。
【0018】
短縮された支柱本体41は脚7により起立させられる。送り機構3やドリル2等が順次、組み付けられ、前記ウォーム付モータ44が駆動されて、支柱本体41の上端が天井面80に接するまで上昇させられる。天井面80との接点を滑らせながら、ドリル2の切刃21の位置が穿孔マークに合わされ、必要なら脚7をも移動してドリル2の仮設定が完了する。
ジャッキ42は、常時、床面90に置かれ、上記の仮設定の完了後、支柱本体41の直下でこれを押し上げて、支柱4を堅固に設定するものである。ジャッキ42のネジピッチは細かく、伸縮速度は遅いが、人力によって容易に大きな押し上げ力を得られるように構成されている。
【0019】
滑り止め機構6は図8の如く、クッション材61とピン62とで構成され、支柱4の天端に取り付けられている。該天端部には、ドリル2の穿孔反力が激しい振動を伴いながら連続的に働く。この力は、上下成分と水平成分とに分けられる。しかるに水平成分は、支柱4の上端の支点を移動させる作用がある。穿孔作業中の該部の移動は、少なくともドリル2に噛み込みを生じさせ、作業の続行を困難にする。すなわち、穿孔径の増大を課題とする本装置1において、滑り止め機構6は支柱4が備えた機能を確実に発揮させるための主要機構である。
クッション材61は、ジャッキ42による押し上げ力を受けて圧縮され、水平分力に対抗する大きな摩擦力を生み、支柱4の上端の横滑りを防ぐ働きがある。しかしクッション材61は、あくまでもピン62に連働するバックアップで、ピン62が天井面80に噛み込むことにより、前記天端での微細な水平変位を許さないことが期待されている。前記皿バネブロック49と連動していることは勿論である。
【0020】
回動支持機構5(図8)は、支柱4の機能を最大限に生かしながら、ドリル2の向きを自在に選択できることを狙いとしている。直孔81が鉄筋と干渉する場合には、天井面80の同一位置から斜孔82を穿設することが必要となるからである。従来は、先行した直孔81のためにドリル2が逃げ、これを所要の位置に保つには甚だ困難を伴った。
本装置1においては、回動支持機構5によって支持された送り機構3上のハンドル38により、ドリル2の向きを定めれば、熟練や労力を要することなく直孔81・斜孔82の穿孔が自在にできる。特に斜孔82の場合にドリル2が流された従来技術と比べれば、負担の軽減度は絶大である。
【0021】
脚7は、穿孔作業中はジャッキ42にその座を譲り、まったく無用の存在である。しかし、該装置1の組立時、あるいは天井面80の所望の穿孔位置へドリル2を仮設定するまで、さらに該装置1の分解時には、きわめて有効に機能している。すなわち、天井面80での大口径の穿孔に耐えるには、特に支柱4の長尺化は避け難く、また強度上、部品重量も増大する。しかし、支柱本体41が脚7によって自立できるが故に、ドリル2、および送り機構3を容易に分解し、再組立することが可能となり、建屋間や階の移動を容易かつ能率的にさせている。伸縮機構43を駆動して天井面80へドリル2を仮設定することも、容易かつ短時間に行うことができる。
【0022】
【発明の効果】
以上のように、請求項1に記載の発明によれば、上端を天井面に、下端を床面に突っ張って、作業用に一時的に堅固に設定される支柱4を設けたことにより、ドリルの支持基盤が安定し、ドリル本来の機能を十分に引き出すことが可能となった。このことにより、穿孔径20mmの場合、一人で一日に20個は容易に且つ正確に穿設することが可能となった。
【0023】
さらに、支柱4が、ドリル高さ設定の迅速性に優れた第1の伸縮機構43を備えた支柱本体41と、上下方向への突っ張り力に優れた第2の伸縮機構を備えたジャッキ42と、で構成され、特に実用的で堅牢な支柱が提供された点が本質的である。すなわちその効果が、すでに述べた穿孔可能な寸法限度の倍増に端的に現れているのであり、更に正確な孔を迅速に穿設できる基盤を提供している。
さらに、支柱上端に独特の滑り止め機構を設けたので、下部に配置したジャッキの機能と連働して、支柱上端の横滑りに対して安定して強固に設定することが可能となり、正確な孔を迅速に穿設できるようになった。
次に、請求項2に記載の発明によれば、請求項1に記載の発明に回動支持機構を加え、ドリルと送り機構とを、天井近傍の1点で回動自在に、堅固に支持することができるようにしたので、斜孔についても、直孔と同様に穿孔サイズを倍増させることが可能となった。この場合、熟練度や労力が軽減され、穿孔精度にも格段の効果が認められる。
さらに請求項に記載の発明によれば、送り機構の動力源に、常識的な空圧駆動を排して電動モータを採用した。ドリルのサイズや直孔・斜孔に合わせて最適な送り速度を採用することが可能となり、正確かつ迅速な穿孔作業が実現されるようになった。
【0024】
以上に記した効果は、主として本天井専用後打アンカー装置の穿孔機能に関するものである。
しかし請求項に記載の発明のように、設定時の堅牢さを期してそれなりの重量があり、かつ長尺の支柱に、本装置の全体が床面だけを利用して自立可能な脚を設けたことにより、穿孔のための準備作業の労力と時間が著しく軽減された。
自立できる脚や、長尺・重量物とならざるを得ない支柱が、本体とジャッキに分割された例にも見るように、本装置1は、単に機能が追求されたに留まらず、建築現場のさまざまな環境において、数百箇所の穿孔作業を行う場合の、広義の作業性に配慮されている。
かくして本装置1は、穿孔サイズの大径化を可能としたのみならず、直孔・斜孔の区別なく迅速かつ正確に穿孔作業を進行させ、さらに作業者の負担を著しく軽減した実用的な天井専用後打アンカー装置を提供するものである。
【図面の簡単な説明】
【図1】本発明の天井専用後打アンカー装置の1例を示す側面図。
【図2】図1のドリル2を示す部分断面図。
【図3】図1の送り機構3の内部を示す斜視図。
【図4】図1のジャッキ42の機構の縦断面略図。
【図5】伸縮機構の説明図。
【図6】支柱本体41の部分断面図。
【図7】伸縮機構43の説明図。
【図8】図1の滑り止め機構6および回動支持機構5を示す断面図。
【図9】天井面80における穿孔およびアンカー83の取付状態を示す断面図。
【符号の説明】
1 天井専用後打アンカー装置
2 ドリル
21 切刃
22 ファン
23 集塵バッグ
3 送り機構
31 駆動モータ
32 ネジ棒
33 スライドテーブル
34 クッション
35 ガイド棒
36 制御箱
37 アーム
38 ハンドル
4 支柱
41 支柱本体
42 ジャッキ
43 伸縮機構
44 ウォームギヤー付モータ
45 長尺ネジ棒
46 大型ナット
47 外筒
48 スラスト軸受
49 皿バネブロック
5 回動支持機構
6 滑り止め機構
61 クッション材
62 ピン
7 脚
80 天井面
81 直孔
82 斜孔
83 アンカー
90 床面
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a concrete drilling apparatus for anchor laying work particularly for a ceiling surface 80 after concrete placement in a building construction work or the like.
[0002]
[Prior art]
In general, as shown in FIG. 9, a post-cast anchor to a concrete ceiling surface 80 is formed by vertically drilling a hole having a diameter and a depth in accordance with the size of a laying anchor material such as a stud bolt in the ceiling surface 80. In the gap between the anchor material and the anchor material, the solidified material is filled and cured.
The drilling operation is performed by assembling a temporary scaffold at a high place where the operator's hand reaches the ceiling surface 80 and supporting the drill 2 on the temporary scaffold.
In this case, first, it is necessary to continuously apply the gravity acting on the drill and the feed force of the drill upward. In addition, it must withstand continuous intense vibrations generated in the drill, or sudden engagement force generated in the rotational direction. Furthermore, the work conditions were the worst, such as the work on a scaffold in high places, where intense noise and dust were generated at a close distance over the head. Moreover, when the drilling diameter was 20 mm, 5 people per day were full.
[0003]
Moreover, in order to improve the inferiority of said working conditions, the tool devised to some extent was also used. In other words, in consideration of handling, the drill is fixed to the upper end of the column that is lightweight and the upper half and the lower half are relatively extended by the gas pressure, and the lower end of the column is supported by the floor. A feed force can be obtained. The operator can proceed with the drilling work by supporting the column, and the working conditions have been improved accordingly. However, the possible perforation diameter is limited to 10 mm, and the dimensional accuracy is similarly poor.
[0004]
Thus, in order to secure a required load capacity with an anchor, there is a tendency that the number of perforations increases regardless of whether the manpower or the tool is used because of the limit on the size that can be perforated.
Also, in general, drilling operations often hit the reinforcing bars. In this case, it is necessary to additionally drill the oblique hole 82 obliquely avoiding the reinforcing bar from the same opening position as the vertical straight hole 81 already drilled in the ceiling surface 80. However, the drilling operation of the oblique hole 82 requires more skill and labor because the drill is caused to flow to the existing straight hole 81 side by human power or by a tool. Furthermore, it is not rare that the number of perforations in one construction site reaches several hundreds, and it has been desired that the perforation work can be carried out much more efficiently and more accurately.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and not only enables an increase in the drilling size in response to a demand for an increase in the load capacity of the laying anchor, but also allows an operator regardless of whether the hole is a straight hole 81 or an oblique hole 82. Therefore, it is an object of the present invention to provide a ceiling-defeated rear-end anchor device that can remarkably reduce the labor required and can drill more accurately and efficiently.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is attached to the support column 4 and the support column 4 which is stretched temporarily, with the upper end extended to the ceiling surface and the lower end extended to the floor surface. comprising a feeding mechanism 3, a concrete drilling drill 2 fed attached to the feeding mechanism 3, a,
The column 4 includes a column main body 41 having a first expansion / contraction mechanism 43 excellent in quickness of setting the height of the drill 2 and a jack 42 having a second expansion / contraction mechanism excellent in vertical stretching force. Have
The rear dedicated to the ceiling, which is provided with an anti-slip mechanism 6 composed of a cushion material 61 and a pin 62 bited on the ceiling surface for preventing slippage with the ceiling surface at the upper end of the column 4 This is a hitting anchor device.
According to the ceiling dedicated rear anchor device, the drill 2 and the feed mechanism 3 can be drilled against each other because the post 4 is provided with the upper end extending to the ceiling surface 80 and the lower end to the floor surface 90 so as to be temporarily set firmly. It can withstand force and is supported stably and firmly. Therefore, the original function of the drill 2 can be fully exhibited. That is, it is possible to provide a ceiling-defeated rear anchor device that not only enables the drilling size to be increased, but also significantly reduces the labor of the operator and enables more accurate and more efficient drilling.
[0007]
The invention of claim 2 is provided with a rotation support mechanism 5 that is attached to the column 4 and supports the feed mechanism 3 so as to be rotatable about one point so as to be inclined with respect to the axis of the column. 2. The ceiling-defeated post-hit anchor device according to claim 1, wherein
According to the ceiling-defeated rear anchor device, the drill 2 attached to the feed mechanism 3 is supported by the rotation support mechanism 5 so as to be rotatable about one point, so that the operator sets the orientation of the drill 2 If so, firm fixing conditions can be obtained. Therefore, the problem of skill and labor due to the difference between the straight hole 81 and the oblique hole 82 shown in FIG. 9 is solved. That is, not only enables the drilling size to be increased, but also significantly reduces the labor of the operator regardless of whether it is a straight hole 81 or a slant hole 82, and enables a more accurate and more efficient drilling anchor for a ceiling. Can be provided.
[0008]
Furthermore, the support | pillar 4 is a jack provided with the support | pillar main body 41 provided with the 1st expansion-contraction mechanism 43 excellent in the quickness of the height setting of the drill 2, and the 2nd expansion-contraction mechanism excellent in the up-down direction tension force. 42, since comprise a set of drills for drilling position in the rigid set-ceiling height of disassembly and reassembly, struts, it is possible to perform such rapidly and reliably, while building Ya at a building site When performing drilling operations one after another while moving on the floor in the building, the apparatus is also excellent in transportability. That is, not only enables the drilling size to be increased, but also significantly reduces the labor of the operator regardless of whether it is a straight hole 81 or a slant hole 82, and enables a more accurate and more efficient drilling anchor for a ceiling. Can be provided.
[0009]
And since the anti-slip | skid mechanism 6 comprised by the cushioning material 61 and the pin 62 for preventing a slip with a ceiling surface is provided in the upper end of the support | pillar 4, it is the jack 42 with respect to the reaction force and vibration of a drill. In conjunction with this action, a strong fixing condition at the upper end of the support column 4 is ensured. That is, it is possible to provide a ceiling-defeated rear anchor device that not only enables the drilling size to be increased, but also significantly reduces the labor of the operator and enables more accurate and more efficient drilling.
[0010]
According to a third aspect of the present invention, there is provided a rear-end anchor device for exclusive use in a ceiling according to the first aspect, wherein the feed mechanism 3 of the drill 2 is driven by an electric motor 31 and the feed speed can be controlled. is there.
According to the ceiling dedicated post-hit anchor device, the feed mechanism 3 is driven by the electric motor 31 so that the feed speed can be controlled, so that the optimum feed speed is controlled. Therefore, the function of the drill 2 is sufficiently extracted in accordance with the drilling size and the straight hole 81 and the oblique hole 82, and the drilling operation can be performed efficiently and accurately. That is, not only enables the drilling size to be increased, but also significantly reduces the labor of the operator regardless of whether it is a straight hole 81 or a slant hole 82, and enables a more accurate and more efficient drilling anchor for a ceiling. Can be provided.
[0011]
A fourth aspect of the present invention, post 4, in the previous configuration tasks are temporarily firmly established between the ceiling surface and the floor surface, without using a ceiling surface, comprising a leg 7 of self-supporting on the floor surface The ceiling-defeated rear-end anchor device according to claim 1, wherein
According to the ceiling-defeated rear anchor device, since the device is provided with the legs 7 that can stand on its own using only the floor surface 90, the device is assembled and the drill 2 is drilled in the ceiling surface 80 as desired. It is possible to remarkably reduce the labor of the work for temporarily setting the location or the work for disassembling the apparatus and to make the progress quickly. That is, not only enables the drilling size to be increased, but also significantly reduces the labor of the operator regardless of whether it is a straight hole 81 or a slant hole 82, and enables a more accurate and more efficient drilling anchor for a ceiling. Can be provided.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an example of a ceiling-defeated rear anchor device according to the present invention. FIG. 2 is a partial sectional view showing a drill 2 in FIG. 1, and FIG. 3 shows the inside of a feed mechanism 3 in FIG. 4 is a schematic longitudinal sectional view of the mechanism of the jack 42 in FIG. 1, FIG. 5 is an explanatory view of the expansion / contraction mechanism, FIG. 6 is a partial sectional view of the column main body 41, FIG. 7 is an explanatory view of the expansion / contraction mechanism 43, and FIG. FIG. 9 is a cross-sectional view showing the anti-slip mechanism 6 and the rotation support mechanism 5 of FIG. 1, and FIG.
[0013]
1 is an after-ceiling anchor device (hereinafter referred to as the present device 1) according to the present invention, which is a drill 2 for concrete drilling, usually called a hammer drill, and a feed mechanism that feeds the drill 2 with an electric motor 31. 3 and the upper end on the ceiling surface 80 and the lower end on the floor surface 90 are temporarily set firmly. The column 4 is composed of a column main body 41 and a jack 42, and is attached to the column 4 to be fed. 3 is supported around the upper end of the column main body 41 so as to be inclined with respect to the axis of the main body 41, and a cushioning material provided at the upper end of the column 4 to prevent the skidding. The non-slip mechanism 6 is composed of 61 and a pin 62, and the leg 7 has a function that allows the device 1 except the jack 42 to stand on its own. Thus, it is possible to drill the straight hole 81 or the oblique hole 82 in the ceiling surface 80, and the anchor 83 is laid in the hole.
[0014]
Next, the operation of the above-described ceiling-dedicated post-hit anchor device 1 will be described with reference to FIGS.
The drill 2 in the apparatus 1 can be drilled up to a maximum drilling diameter of 20 mm and a maximum depth of 230 mm by replacing the cutting edge 21. A commercial product having a function of automatically stopping if interference with the reinforcing bar or biting occurs during operation. Dust generated at the cutting blade portion is collected in a dust collection bag 23 through the inside of the cutting blade 21 configured in a pipe shape by a fan 22 that rotates coaxially with the cutting blade 21. The power source for the cutting blade 21 and the fan 22 is electricity, and the power is supplied from a control box 36 provided at the tip of an arm 37 integrated with the feed mechanism 3 by a power cord.
[0015]
The power source of the feed mechanism 3 is also electricity. As shown in FIG. 3, the feed force and feed amount of the drill 2 are first applied to the slide table 33 that is screwed onto the screw rod 32 by rotating the screw rod 32 by the electric motor 31. Subsequently, it is transmitted to the drill 2 (FIG. 1) attached to the slide table 33 via the cushion 34. The slide table 33 goes straight while sliding with the two guide bars 35 inserted therein. The speed is set by the voltage in the control box 36 according to the size of the cutting blade 21 and others. In this case, a delicate setting of the optimum feed speed is difficult to achieve with the hydraulic / pneumatic drive, and is the origin of the efficiency and reliability of the apparatus 1. Electricity of the power source is easy to obtain and excellent in workability from the aspect of drilling work while moving through buildings and floors under construction.
A handle 38 and the control box 36 are disposed at the tip of an arm 37 configured as a part of the feed mechanism 3. In this apparatus 1, the operator holds the handle 38, sets the feed speed of the drill 2, and uses the direction of the hole to be drilled, that is, the straight hole 81 or the oblique hole under the power of the rotation support mechanism 5 described later. The angle of the drill 2 for the hole 82 is set, and the drill 2 is controlled by the control box 36 while monitoring the progress of the drilling operation.
[0016]
The column 4 includes an extendable column main body 41 for quickly determining the set height of the drill 2, and a jack 42 for the column 4 to exert a tensile force toward the ceiling surface 80 and the floor surface 90 as a whole. It is constituted by.
The power source of the expansion / contraction mechanism 43 (FIGS. 5 to 7) of the column main body 41 is also electric and is driven by a motor 44 with a worm.
Next, the structure and operation of the telescopic mechanism 43 will be described. A large nut 46 is screwed onto a long screw rod 45 assembled integrally with the leg 7. The large nut 46 supports the lower end of the outer cylinder 47 via a thrust bearing 48. In other words, when the large nut 46 rotates, the outer cylinder 47 moves up and down along the long screw rod 45 together with the large nut 46. On the other hand, a gear is formed on the outer diameter portion of the large nut 46, and a worm-equipped motor 44 that engages the worm with the gear is fixed to the lower end of the outer cylinder 47. Thus, when the worm motor 44 is switched on, the outer cylinder 47 can move quickly in both the upward and downward directions.
[0017]
In addition, a sliding key in the longitudinal direction is provided between the long screw rod 45 and the outer cylinder 47 to prevent the outer cylinder 47 from rotating. The upper end of the long screw rod 45 is formed in a piston shape and slides on the inner surface of the outer cylinder 47 so that the column main body 41 does not bend even if it receives a compressive load in the longitudinal direction.
On the other hand, the distance between the fulcrums caused by the displacement of the ceiling surface 80 and the floor surface 90 due to disturbance during the drilling operation, the backlash of the worm / gear part, or the shape change of the contact surface at the upper and lower fulcrums of the column 4 In order to follow a minute change, the column main body 41 is provided with a disc spring block 49 as shown in FIG. If only this function is pursued, a jack mechanism using hydraulic pressure is ideal. However, given the availability and uniformity of the power source, the embodiment of the device 1 provides one overall excellent choice.
[0018]
The shortened column body 41 is raised by the legs 7. The feed mechanism 3, the drill 2, and the like are sequentially assembled and the motor 44 with worm is driven to raise the column body 41 until the upper end of the column main body 41 contacts the ceiling surface 80. While sliding the contact point with the ceiling surface 80, the position of the cutting edge 21 of the drill 2 is adjusted to the drilling mark, and if necessary, the leg 7 is also moved to complete the temporary setting of the drill 2.
The jack 42 is always placed on the floor surface 90, and after the above temporary setting is completed, the jack 42 is pushed up directly below the column main body 41 to set the column 4 firmly. Although the screw pitch of the jack 42 is fine and the expansion / contraction speed is slow, it is configured so that a large pushing force can be easily obtained by human power.
[0019]
As shown in FIG. 8, the anti-slip mechanism 6 includes a cushion material 61 and a pin 62, and is attached to the top end of the column 4. The drilling reaction force of the drill 2 works continuously at the top end portion with intense vibration. This force is divided into a vertical component and a horizontal component. However, the horizontal component has the effect of moving the fulcrum at the upper end of the column 4. The movement of the portion during the drilling operation causes at least the drill 2 to bite and makes it difficult to continue the operation. In other words, in the present apparatus 1 which is intended to increase the diameter of the perforation, the anti-slip mechanism 6 is a main mechanism for surely exerting the function of the support column 4.
The cushion material 61 is compressed by receiving the push-up force by the jack 42, generates a large frictional force against the horizontal component force, and has a function of preventing a side slip of the upper end of the column 4. However, it is expected that the cushion material 61 is a backup that is linked to the pin 62 and does not allow a fine horizontal displacement at the top end when the pin 62 bites into the ceiling surface 80. It goes without saying that the disk spring block 49 is interlocked.
[0020]
The rotation support mechanism 5 (FIG. 8) aims to be able to freely select the orientation of the drill 2 while making the most of the function of the support column 4. This is because if the straight hole 81 interferes with the reinforcing bar, it is necessary to drill the oblique hole 82 from the same position on the ceiling surface 80. Conventionally, the drill 2 escapes due to the preceding straight hole 81, and it has been extremely difficult to keep it in a required position.
In this apparatus 1, if the direction of the drill 2 is determined by the handle 38 on the feed mechanism 3 supported by the rotation support mechanism 5, the straight hole 81 and the oblique hole 82 can be drilled without requiring skill or labor. You can do it freely. In particular, in the case of the oblique hole 82, the degree of reduction of the burden is tremendous compared with the conventional technology in which the drill 2 is flowed.
[0021]
The leg 7 leaves its seat to the jack 42 during the drilling operation and is completely useless. However, when the apparatus 1 is assembled or until the drill 2 is temporarily set to a desired drilling position on the ceiling surface 80, the apparatus 1 is functioning very effectively when disassembled. That is, in order to withstand the drilling of the large diameter on the ceiling surface 80, it is difficult to avoid the length of the column 4 in particular, and the weight of the component increases in terms of strength. However, since the column main body 41 can be self-supported by the legs 7, the drill 2 and the feed mechanism 3 can be easily disassembled and reassembled, and the movement between buildings and floors can be easily and efficiently performed. . It is possible to drive the telescopic mechanism 43 to temporarily set the drill 2 on the ceiling surface 80 easily and in a short time.
[0022]
【The invention's effect】
As described above, according to the invention described in claim 1, the drill 4 is provided by extending the upper end to the ceiling surface and the lower end to the floor surface, and providing the column 4 that is temporarily firmly set for work. The support base of the drill became stable and the original function of the drill could be fully exploited. As a result, when the perforation diameter is 20 mm, 20 per person can be easily and accurately perforated.
[0023]
Furthermore, the column 4 includes a column main body 41 provided with a first expansion / contraction mechanism 43 excellent in rapid setting of a drill height, and a jack 42 provided with a second expansion / contraction mechanism excellent in a vertical pulling force. In particular, a particularly practical and robust strut is provided. In other words, the effect is manifested in the doubling of the dimensional limit that can be drilled as described above, and provides a base on which more accurate holes can be drilled quickly.
In addition, a unique anti-slip mechanism is provided at the upper end of the support column, so that it can work stably with the function of the jack located at the bottom, and can be set stably and firmly against the side slip at the upper end of the support column. Can be drilled quickly.
Next, according to the invention described in claim 2, a rotation support mechanism is added to the invention described in claim 1, and the drill and the feed mechanism are firmly supported so as to be rotatable at one point near the ceiling. As a result, it has become possible to double the drilling size of oblique holes as well as straight holes. In this case, skill and labor are reduced, and a remarkable effect is recognized in the drilling accuracy.
Further, according to the invention described in claim 3 , the electric motor is adopted as the power source of the feed mechanism by eliminating common-sense pneumatic driving. It has become possible to adopt the optimum feed rate according to the size of the drill, the straight hole and the oblique hole, and an accurate and quick drilling operation has been realized.
[0024]
The effects described above mainly relate to the drilling function of the post-casting anchor device dedicated to the main ceiling.
However, as in the invention described in claim 4 , a leg that has a certain weight for the robustness at the time of setting and that can be self-supported by using only the floor surface is provided on the long column. By providing, the labor and time of the preparatory work for drilling were remarkably reduced.
As you can see in the example where the legs that can stand on their own and the pillars that have to be long and heavy are divided into the main body and jack, this device 1 is not just a pursuit of function, but the construction site. Considering the workability in a broad sense when drilling several hundred places in various environments.
Thus, the apparatus 1 not only enables the drilling size to be increased, but also allows the drilling operation to proceed quickly and accurately without distinguishing between straight holes and oblique holes, and further reduces the burden on the operator. It is intended to provide a tail anchor device for ceiling use.
[Brief description of the drawings]
FIG. 1 is a side view illustrating an example of a ceiling-defeated rear impact anchor device according to the present invention.
FIG. 2 is a partial cross-sectional view showing the drill 2 of FIG.
3 is a perspective view showing the inside of the feed mechanism 3 of FIG. 1. FIG.
4 is a schematic longitudinal sectional view of the mechanism of the jack 42 in FIG. 1;
FIG. 5 is an explanatory diagram of an expansion / contraction mechanism.
6 is a partial cross-sectional view of a column main body 41. FIG.
FIG. 7 is an explanatory diagram of the telescopic mechanism 43. FIG.
8 is a cross-sectional view showing the anti-slip mechanism 6 and the rotation support mechanism 5 of FIG.
FIG. 9 is a cross-sectional view showing a state in which a perforation in the ceiling surface 80 and an anchor 83 are attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ceiling-dedicated post strike anchor apparatus 2 Drill 21 Cutting blade 22 Fan 23 Dust collection bag 3 Feed mechanism 31 Drive motor 32 Screw rod 33 Slide table 34 Cushion 35 Guide rod 36 Control box 37 Arm 38 Handle 4 Strut 41 Strut body 42 Jack 43 Telescopic mechanism 44 Motor 45 with worm gear Long screw rod 46 Large nut 47 Outer cylinder 48 Thrust bearing 49 Belleville spring block 5 Rotation support mechanism 6 Non-slip mechanism 61 Cushion material 62 Pin 7 Leg 80 Ceiling surface 81 Direct hole 82 Oblique hole 83 Anchor 90 Floor

Claims (4)

上端を天井面に、下端を床面に突っ張って一時的に堅固に設定される伸縮自在の支柱4と、支柱4に取り付けられた送り機構3と、送り機構3に取り付けられて送り出されるコンクリート穿孔用ドリル2と、を具備し
支柱4が、ドリル2の高さ設定の迅速性に優れた第1の伸縮機構43を有する支柱本体41と、上下方向への突っ張り力に優れた第2の伸縮機構を有するジャッキ42と、を有し、
支柱4の上端に、天井面との滑りを防ぐための、クッション材61と天井面に咬着されるピン62と、で構成された滑り止め機構6を備えたことを特徴とする天井専用後打アンカー装置。
Stretchable struts 4 that are temporarily set firmly with the upper end on the ceiling surface and the lower end on the floor surface, the feed mechanism 3 attached to the strut 4, and the concrete perforation attached to the feed mechanism 3 and sent out Drill 2 for use ,
The column 4 includes a column main body 41 having a first expansion / contraction mechanism 43 excellent in quickness of setting the height of the drill 2 and a jack 42 having a second expansion / contraction mechanism excellent in vertical stretching force. Have
The rear dedicated to the ceiling, which is provided with an anti-slip mechanism 6 composed of a cushion material 61 and a pin 62 bited on the ceiling surface for preventing slippage with the ceiling surface at the upper end of the column 4 Strike anchor device.
支柱4に取り付けられ、その支柱の軸線に対して傾斜できるように送り機構3を1点の回りに回動自在に支持する回動支持機構5を備えたことを特徴とする請求項1に記載の天井専用後打アンカー装置。 The rotation support mechanism 5 which is attached to the support | pillar 4 and supports the feed mechanism 3 rotatably about one point so that it can incline with respect to the axis line of the support | pillar is provided. Rear anchor device for ceilings. ドリル2の送り機構3が電動モータ31によって駆動され、かつ送り速度が制御可能に構成されたことを特徴とする請求項1に記載の天井専用後打アンカー装置。 2. The ceiling-defeated rear anchor device according to claim 1, wherein the feed mechanism of the drill is driven by an electric motor and the feed rate is controllable. 支柱4が、天井面と床面との間で一時的に堅固に設定される以前の設定作業において、天井面を利用せず、床面で自立する脚7を備えたことを特徴とする請求項1に記載の天井専用後打アンカー装置。 The support column 4 is provided with a leg 7 that does not use the ceiling surface and is independent on the floor surface in a setting operation prior to being set firmly and firmly between the ceiling surface and the floor surface. Item 2. A ceiling anchor device according to item 1.
JP08796498A 1998-03-17 1998-03-17 Rear hitting anchor device for ceiling Expired - Fee Related JP4131425B2 (en)

Priority Applications (1)

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JP08796498A JP4131425B2 (en) 1998-03-17 1998-03-17 Rear hitting anchor device for ceiling

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Application Number Priority Date Filing Date Title
JP08796498A JP4131425B2 (en) 1998-03-17 1998-03-17 Rear hitting anchor device for ceiling

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JPH11262914A JPH11262914A (en) 1999-09-28
JP4131425B2 true JP4131425B2 (en) 2008-08-13

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Publication number Priority date Publication date Assignee Title
CN108724477A (en) * 2018-05-23 2018-11-02 辽宁科技大学 A kind of convenient vibration damping electric drill support device
CN111906435B (en) * 2020-07-28 2021-11-09 济南多维光电设备有限公司 Handheld optical fiber laser cutting machine with good stability
CN113829516B (en) * 2021-08-24 2023-12-22 中工武大设计集团有限公司 Collect drilling, install in dress pole device of an organic whole
CN114986211A (en) * 2022-06-15 2022-09-02 马鞍山常裕机械设备有限公司 Rod-shaped part machining device and method for mining machinery
CN114952722A (en) * 2022-07-04 2022-08-30 中建八局装饰工程有限公司 Expansion bolt mounting robot and construction method thereof

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