【０００１】
【発明の属する技術分野】
本発明は、吊架用線に吊り下げ状に取着されているハンガー部材に、線条体を挿通させる線条体挿通工具に関する。
【０００２】
【従来の技術】
従来、吊架用線に取着されたハンガー部材に線条体を挿通させる手段としては、線条体を挿通させるための専用のガイド部材を予め吊架用線に沿って引き通し作業を行うものがある（例えば、特許文献１参照。）。
また、このようなガイド部材を使用することなく作業を行う手段としては、吊架用線に沿って移動する挿通工具が考えられる。しかし、電柱等の支持構造体の間に架設させたハンガー部材付き吊架用線には方向性があるため、挿通工具を用いてハンガー部材に線条体を挿通させるために、その方向性に対応する専用の挿通工具を使用する必要があった。
「ハンガー部材付き吊架用線には方向性がある」とは、図１の側面図と図２の正面図に示すように、ハンガー部材２は、一端部２ａが吊架用線１にその軸心廻りに回転自在でかつその軸心に沿った方向に揺動自在に取着され、図２のように軸心方向から見て全体が閉ループ状となって他端部２ｂが吊架用線１に一端部２ａと間隔Ｐを持って引っ掛けられた構成であるため、ハンガー部材２は、一方向（図１の矢印ａ方向）には揺動し易いが、他方向（矢印ｂ方向）へは揺動しにくい、という方向性を有することとなる。ハンガー部材２は、その一端部２ａ側が枢着点側であり、他端部２ｂ側が自由端側となる。
従って、吊架用線１に沿って移動させて線条体３をハンガー部材２へ挿通させるためには、両通線方向の夫々の専用工具を用意し、架設されているハンガー部材２付き吊架用線１に応じて使い分けている。
【０００３】
【特許文献１】
特開２００１−１１２１５４号公報
【０００４】
【発明が解決しようとする課題】
従来の挿通工具は通線方向に対応させるため、作業場所に２種類の挿通工具が必要であった。また、従来の挿通工具は、図１３の側面図に示すように、既にハンガー部材２にケーブル（既設線条体７）が挿通済みである場合、その挿通工具が有するハンガー部材２を押し上げ揺動させる部材は、ケーブル（既設線条体７）の重さのため、ハンガー部材２を所定位置まで揺動させることができない。その結果、ハンガー部材２の他端部２ｂを押し上げることができず、挿通させようとする線条体３を、ハンガー部材２の一端部２ａと他端部２ｂの間の間隔部より、挿通させることができないという問題がある。さらに、ハンガー部材２の他端部（自由端部）２ｂ側から一端部（枢着点）２ａ側へ向かう通線方向へ、挿通工具５０を吊架用線１に沿って移動させると、ハンガー部材２を揺動させることがより難しい（スムーズにならない）という問題がある。なお、符号３は新たに挿通させようとする線条体３である。
一方、ハンガー部材２にケーブル（既設線条体７）が存在していない状態であると、ハンガー部材２が吊架用線１の軸心廻りに回転自在であるため、図１４に示すように、先導部材４９がハンガー部材２を押し上げた際、ハンガー部材２が吊架用線１の軸心廻りに回転してしまい、線条体３を先導する先導部材４９がハンガー部材２の所定位置を通過せず、絡み合って身動きできなくなるという問題がある。
【０００５】
そこで本発明は、ハンガー部材付き吊架用線の方向性の影響を受けず、また、ハンガー部材に既にケーブルが引き込まれていてもその影響を受けずに、線条体をハンガー部材へ確実に挿通させることができる線条体挿通工具を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上述の目的を達成するために、本発明に係る線条体挿通工具は、一端部が吊架用線の軸心廻りに回転自在であってかつ該軸心に沿った方向に揺動自在に取着されると共に該軸心方向から見て全体が閉ループ状となって他端部が該吊架用線に該一端部と間隔を持って引っ掛けられたハンガー部材に線条体を挿通させる線条体挿通工具であって、先端部に上記線条体を取着させかつ上記吊架用線に沿って移動して上記ハンガー部材の上記他端部側を摺接しつつ押し上げると共に該押し上げられた他端部と上記一端部との間を通り抜けることで該線条体を該ハンガー部材に挿通させる先導針部材と、上記ハンガー部材の上記他端部が該先導針部材に摺接する際に該ハンガー部材が上記吊架用線の上記軸心廻りに回転するのを抑制するガイド部材と、を備えたものである。
また、上記先導針部材は、工具本体部に着脱自在とされ、かつ、該先導針部材は該工具本体部に対して所定の姿勢にて位置決めできる位置決め手段と該工具本体部に固定させる固定手段とを有するものである。
または、一端部が吊架用線の軸心廻りに回転自在であってかつ該軸心に沿った方向に揺動自在に取着されると共に該軸心方向から見て全体が閉ループ状となって他端部が該吊架用線に該一端部と間隔を持って引っ掛けられたハンガー部材であって既設線条体が挿通済みの該ハンガー部材に新たに線条体を追加して挿通させる線条体挿通工具であって、先端部に上記線条体を取着させかつ上記吊架用線に沿って移動して上記ハンガー部材の上記他端部側を摺接しつつ押し上げると共に該押し上げられた他端部と上記一端部との間を通り抜けることで該線条体を該ハンガー部材に挿通させる先導針部材と、ハンガー部材を該先導針部材に摺設させる前に該ハンガー部材に挿通済みの上記既設線条体を持ち上げる補助ローラと、を備えたものである。
また、上記先導針部材は、工具本体部に着脱自在とされ、かつ、該先導針部材は該工具本体部に対して所定の姿勢にて位置決めできる位置決め手段と該工具本体部に固定させる固定手段とを有するものである。
または、一端部が吊架用線の軸心廻りに回転自在であってかつ該軸心に沿った方向に揺動自在に取着されると共に該軸心方向から見て全体が閉ループ状となって他端部が該吊架用線に該一端部と間隔を持って引っ掛けられたハンガー部材に線条体を挿通させる線条体挿通工具であって、先端部に上記線条体を取着させかつ上記吊架用線に沿って移動して上記ハンガー部材の上記他端部側を摺接しつつ押し上げると共に該押し上げられた他端部と上記一端部との間を通り抜けることで該線条体を該ハンガー部材に挿通させる先導針部材を備え、該先導針部材は工具本体部に着脱自在とされ、かつ、該先導針部材は該工具本体部に対して所定の姿勢にて位置決めできる位置決め手段と該工具本体部に固定させる固定手段とを有するものである。
また、上記先導針部材は、上記吊架用線に沿って上記ハンガー部材の上記一端部側から上記他端部側へ移動させる正方向走行用と、該吊架用線に沿って該ハンガー部材の該他端部側から該一端部側へ移動させる逆方向走行用の２種類を、有し、上記工具本体部に選択的に取付けるようにしたものである。
【０００７】
【発明の実施の形態】
以下、図示の実施の形態に基づき、本発明を詳説する。
【０００８】
図１は本発明の線条体挿通工具にて線条体３を架設（挿通）させるハンガー部材２付き吊架用線１の実施の一形態を示す側面図であり、図２はその吊架用線１の正面図である。また、図３は線条体挿通工具の実施の一形態を示す平面図であり、図４は正方向走行状態の挿通工具の側面図である。さらに、図５は逆方向走行状態の側面図であり、図６は挿通工具の正面図である。なお、「正方向走行」及び「逆方向走行」については後に説明する。
【０００９】
本発明に係る線条体挿通工具は、電柱や建物等の支持構造体間に架設されているハンガー部材２付きの吊架用線１の複数のハンガー部材２内に、線条体３を地上からの操作により次々と挿通させる工具である。具体的に説明すると、この挿通工具は吊架用線１に沿って走行自在であり、挿通工具に取着させた操作用ロープ１７を地上から作業者が引っ張ることにより、挿通工具に取着させた線条体３を吊架用線１に吊り下げ状とされたハンガー部材２に挿通させていくものである。
【００１０】
なお、この線条体３を吊架用線１に沿って架設する目的は、最終的に光ファイバーや電線等のケーブルをハンガー部材２にて吊り下げ状とさせるためであり、この挿通工具にて線条体３を吊架用線１に沿って架設した後、その線条体３の端部に光ファイバーケーブル等を接続させ、線条体３を巻き取って光ファイバーケーブルを吊架用線１のハンガー部材２に引き込ませるためである。つまり、線条体３は、引き込み用牽引ロープ（リード線）となる。
【００１１】
先ず、ハンガー部材２について説明すると、ハンガー部材２は、図１と図２に示すように、一本の線部材が略ループ状（略環状）に曲げられて作製されたものであり、その一端部２ａは、吊架用線１に回転自在に外嵌される回転金具１８の軸受部１９に取着され、吊架用線１の軸心廻りに回転自在であって、かつ、軸受部１９において吊架用線１の軸心に沿った方向に揺動自在とされている。そして、吊架用線１の軸心方向から見て全体が閉ループ状となって他端部２ｂが、吊架用線１に一端部２ａと吊架用線１の軸心方向に所定の間隔Ｐを持って引っ掛けられた構成である。つまり、ハンガー部材２は、その一端部２ａ側が枢着点側であり、他端部２ｂ側が自由端側である。従って、吊架用線１に取着させたハンガー部材２は、一方向（図１の矢印ａ方向）には揺動し易いが、他方向（矢印ｂ方向）へは揺動しにくい、という方向性を有することとなる。
【００１２】
そして、ハンガー部材２を矢印ａの方向へ揺動させると、他端部２ｂは吊架用線１から上方位置へ離れて一端部２ａとの間に隙間部を形成することとなり、後述する線条体挿通工具の先導針部材４が、その隙間部を通過することとなる。
また、回転金具１８の軸心前後方向には、回転金具１８が軸心方向へ位置ズレするのを防ぐストッパー金具３７，３７が配設されている。そして、一本の吊架用線１にはハンガー部材２が布設方向（軸方向）に所定ピッチで複数個同じ形態（一端部２ａと他端部２ｂとの前後位置関係が全て共通の状態）にて吊設されている。
【００１３】
そして、このハンガー部材２に線条体３を挿通工具にて挿通させる通線方向としては、ハンガー部材２の一端部２ａ側から他端部２ｂ側へ挿通工具を移動させて行う「正方向走行」（図１の矢印ｃ）と、その反対である他端部２ｂ側から一端部２ａ側へ工具を移動させて行う「逆方向走行」（図１の矢印ｄ）との２種類がある。つまり、正方向走行は、図４に示すように、挿通工具の先導針部材４の進行方向に対して前進しながらハンガー部材２をそのまま押し上げて進む方向であるため、ハンガー部材２は簡単に揺動できる。これに対して、逆方向走行は、図５に示すように、先導針部材４の進行方向と反対向きにハンガー部材２を揺動させて押し上げる方向であるため、ハンガー部材２は正方向走行に比べて揺動しにくい。しかし、本発明では両方向ともスムーズに作業が行えるものである。
【００１４】
本発明に係る線条体挿通工具について説明すると、挿通工具は、工具本体部８と、工具本体部８の走行前後方向位置に夫々取着され吊架用線１に沿って走行可能な一対の走行ローラ１１，１１と、を備えている。
そして第一の実施の形態としては、さらに、工具本体部８の略前後方向中央部に取着されハンガー部材２内へ線条体３を挿通させる先導針部材４と、先導針部材４の上方近傍位置において工具本体部８に固定され挿通動作の際にハンガー部材２が吊架用線１の軸心廻りに回転するのを抑制するガイド部材５と、を備えている。
【００１５】
また、他の実施の形態としては、上述した先導針部材４と、ハンガー部材２に挿通済みの既設線条体（既設ケーブル）７を持ち上げる補助ローラ６と、を備えている。
さらに、別の実施の形態としては、上述した、先導針部材４と、ガイド部材５と、補助ローラ６とを備えたものであり、図３〜図６に示したものである。
また、これらの実施の形態の先導針部材４については、後にも説明するが、工具本体部８に着脱自在とされ、かつ、先導針部材４は工具本体部８に対して所定の姿勢にて位置決めできる位置決め手段９と工具本体部８に固定させる固定手段１０とを有している。
【００１６】
次にこれらの構成について具体的に説明すると、図３〜図６に示すように、工具本体部８は、吊架用線１を両側から挟むよう配設されかつ吊架用線１の軸心（線方向）前後方向に所定の長さを有する左右フレーム部材２１，２１を有する。走行ローラ１１，１１は、この左右フレーム部材２１，２１の間であって前後夫々の位置に回転自在に接続されている。従って、工具本体部８は、走行ローラ１１，１１にて吊架用線１の上を（吊架用線１に沿って）走行する。走行ローラ１１は中央部が凹状となる鼓型であり、挿通工具を蛇行させることがない。
【００１７】
また、一方のフレーム部材２１は、その前後方向中央部から下方へ突出する側壁部２９を有し、側壁部２９の下部は他方側のフレーム部材２１方向へ折り曲げられ、側壁部２９の先端部に操作用ロープ１７を取着させる前・後けん引アーム３０，３０を有する。従って、挿通工具の下方位置を操作用ロープ１７にて地上から引っ張るため、安定して工具は走行できる。また、図６に示すように、この挿通工具（開閉部材３３）の下部にウエイト３６を備えているため、工具の重心が下方領域に配置され、安定する。
さらに、工具本体部８は、側面視において左右対象形状とされており、重心位置が本体部８の前後方向の中心となるため、正方向走行時でも、逆方向走行時でも、バランスを崩すことなく走行できる。
【００１８】
先導針部材４は、ハンガー部材２内へ挿通させる線条体３を先端部４ｂに取着させハンガー部材２内へその線条体３を挿通させるものである。先導針部材４の基端部４ａは工具本体部８のフレーム部材２１，２１の間であって一方側のフレーム部材２１に固定され、先端部４ｂにリング形状や貫孔等の線条体取着部２０が形成され、取着部２０に線条体３の端部が（図示省略の連結金具を介して）取着されている。先導針部材４の形状は、基端部４ａから工具の進行方向前方へ延伸すると共に一旦上方へ湾曲する上ガイド部を形成しその後下方へ滑らかに湾曲し、かつ、上ガイド部が吊架用線１の上方近傍位置を横断状に跨ぐと共に先導針部材４の先端部４ｂが平面視吊架用線１の軸心と略上下重なる位置に配設されるよう曲げられた三次元曲げ形状の細杆部材である。
【００１９】
そして、図８の要部側面図に示すように、この先導針部材４の構成によれば、挿通工具の進行方向（挿通方向）が矢印ｆの方向、即ち「逆方向走行」であっても、図示省略の「正方向走行」であっても、工具本体部８の移動に伴って、先導針部材４が吊架用線１に沿って移動して挿通対象とするハンガー部材２に接近し、先導針部材４の上ガイド部がハンガー部材２の他端部２ｂ側を摺接しつつ押し上げると共に、先導針部材４が押し上げられたハンガー部材２の他端部２ｂと一端部２ａとの間の隙間部を通り抜けることで線条体３をハンガー部材２に挿通させる。
【００２０】
図９と図１０は先導針部材４の側面図と正面図であり、この先導針部材４は、工具本体部８に着脱自在とされ、工具本体部８に対して所定の姿勢にて位置決めできる位置決め手段９と、工具本体部８に固定させる固定手段１０とを有している。
さらに、先導針部材４は、吊架用線１に沿ってハンガー部材２の一端部２ａ側から他端部２ｂ側へ移動させる正方向走行用と、吊架用線１に沿ってハンガー部材２の他端部２ｂ側から一端部２ａ側へ移動させる逆方向走行用の２種類を、有し、工具本体部８に選択的に取付けるようにしている。
【００２１】
つまり、図４と図５に示すように、１台の工具本体部８と２種類の先導針部材４，４とにより一組とされており、吊架用線１のハンガー部材２の方向性に応じて作業場所にて簡単に取り替え自在としている。なお、いずれの先導針部材４も、図２に示すように正面視、ループ状のハンガー部材２の一端部２ａとなる側（部分ｅ側）に対応するよう、先導針部材４の基端部４ａが工具本体部８と接続される。また、２種類の先導針部材４の形状は、上記説明のとおり三次元曲げ形状で共通しているが、工具本体部８の進行方向が「正方向」と「逆方向」とで反対となるため、先導針部材４の先端部４ｂ側は反対向きのものとなる。つまり、２種類は（略）反対勝手で作製されている。
【００２２】
図９と図１０により先導針部材４の上記位置決め手段９と上記固定手段１０とについて説明すると、先導針部材４は、工具本体部８に形成した一対の貫孔２３，２３に密着挿入状となって工具本体部８に対して所定の姿勢にて位置決めできる一対の位置決めピン２４，２４からなる位置決め手段９と、位置決めピン２４の工具本体部８からの抜止めを行う抜止部材２５と抜止部材２５を介して位置決めピン２４を工具本体部８に固定させる止めネジ部材２６とから成る固定手段１０とを有している。
【００２３】
さらに説明すると、工具本体部８のフレーム部材２１の内壁に面で接触可能な平面台座部２２の非接触面側に先導針部材４の基端部４ａが接続され、内壁に接触する接触面側に一対の位置決めピン２４が２本突出状に形成されている。ピン２４の外径と工具本体部８の貫孔２３の内径とは、ピン２４ががたつかない程度に、略同じ寸法としている。そして、位置決めピン２４，２４の夫々に差し込み孔２７，２７が形成されている。そして、差し込み孔２７，２７に挿入される差し込み軸部２８，２８を有する抜止部材２５によりピン２４は抜止めされる。さらに、抜止部材２５は貫通状のネジ孔が形成されており、ネジ部材（蝶ボルト）２６がねじ込まれてネジ部材２６の先端が工具本体部８のフレーム部材２１の外壁に当接し押圧状態とする。これにより、先導針部材４は、工具本体部８に強固にがたつかず固定できる。
【００２４】
次に、ガイド部材５について説明すると、ガイド部材５は、ハンガー部材２の他端部２ｂが先導針部材４の上ガイド部に摺接する際に、ハンガー部材２が吊架用線１の軸心廻りに回転するのを抑制するものである。ガイド部材５は、先導針部材４の近傍位置であり、工具本体部８の左右のフレーム部材２１，２１の上部を連結するよう配設されている。そして、ガイド部材５の位置は、図４及び図１１の要部側面図に示す正方向走行（進行方向矢印ｇ）では先導針部材４の先端部４ｂ側の上方位置であり、図５及び図１２の要部側面図に示す逆方向走行（進行方向矢印ｈ）では先導針部材４の基端部４ａ側の上方位置となる。つまり、ハンガー部材２が先導針部材４と摺接して上方へ揺動していく方向である１ヵ所のみに、ガイド部材５が設けられている。
【００２５】
従って、ハンガー部材２が先導針部材４に摺接しつつ押し上げられる際に、（特に既設線条体７が無い場合に）ハンガー部材２が吊架用線１の軸心廻りに回転（ひねり回転）しはじめても、ハンガー部材２を強制的に下方へ押し戻すよう構成されている。従って、ハンガー部材２は、正規の押し上げられ位置及び正規の揺動姿勢を保持できる。また図１１と図１２に示すように、ガイド部材５の下面形状は、横断面において、下方へ凸となる中央押し戻し部３１とその両側（両前後側）の上方へ延伸する鍔部３８，３８とを形成している。この鍔部３８，３８により、正逆どちらの走行方向でも、ハンガー部材２がガイド部材５の押し戻し部３１にひっかかることがなく、ハンガー部材２を挿通工具がスムーズに通過できる。
【００２６】
次に、補助ローラ６は、図８に示すように、既に既設線条体７が１条以上挿通済みのハンガー部材２に、新たに線条体３を追加して挿通させる際に不可欠となるものであり、ハンガー部材２を先導針部材４に摺接させる前において、ハンガー部材２に挿通済みの既設線条体７を持ち上げる部材（補助ロール）である。その具体的構成は、図４と図５に示すように、工具本体部８（フレーム部材２１の側壁部２９）に取着されたアーム部材３２の先端部側に、上方の走行ローラ１１，１１の水平回転軸心と平行な回転軸心を持つよう配設されたものである。そして、補助ローラ６は既設線条体７を補助ローラ６の上部に載置状として持ち上げる。
【００２７】
そして、補助ローラ６の天端高さ位置──つまり補助ローラ６による既設線条体７の当接保持部高さ位置──は、自然吊り下げ状態（図１と図２に示す状態）にあるハンガー部材２の（内周側）下端高さ位置よりも上方としている。従って、ハンガー部材２の内周に挿通されていた既設線条体７は、図５と図８に示すように、挿通工具が挿通対象とするハンガー部材２に接近すると、既設線条体７が上方へ持ち上げられる。これにより、ハンガー部材２には既設線条体７の重さが作用しないため、先導針部材４により容易にハンガー部材２を揺動させ、ハンガー部材２の一端部２ａと他端部２ｂとの間に所定の隙間部を形成させることができる。
【００２８】
補助ローラ６についてさらに説明すると、その形状は中央部が滑らかな曲線にて凹状となる鼓型柱状体であり、上方位置の走行ローラ１１，１１と共に挿通工具のふらつきを軽減させる。
なお、補助ローラ６は、逆方向走行での作業であってかつハンガー部材２に既設線条体７が挿通済みの場合に有効なものであり、その他の作業───例えば、既設線条体７が無い場合、や正方向走行の場合───では、不要としている。そのために、補助ローラ６を取着する揺動アーム部材３２は、基端部にて上下方向揺動自在かつ上方使用位置にて位置保持可能とされており、図４に示すように、正方向走行では、二点鎖線に示すように、補助ローラ６をハンガー部材２よりも下方退避位置へ移動させるとよい。
【００２９】
また、図６及び図７に示すように、本発明に係る挿通工具は、ハンガー部材２付き吊架用線１を周方向包囲して吊架用線１からの挿通工具の落下を防止する落下防止手段１２を有する。なお、落下防止手段１２による落下防止機能は、工具本体部８と共働きして吊架用線１を周方向包囲して作用するものである。つまり、落下防止手段１２は、工具本体部８のフレーム部材２１，２１に対して揺動するよう連結された開閉フレーム部材３３を備え、開閉フレーム部材３３が閉状態となって吊架用線１を全周包囲し、仮に走行ローラ１１，１１が吊架用線１から脱線しても挿通工具は落下することがない。さらに、この落下防止手段１２は、吊架用線１に対して周方向包囲状態（図６）及び開口状態（図７）に切り換えさせる開閉機構部１４を有している。そして、落下防止手段１２は、この開閉機構部１４により、走行ローラ１１，１１が吊架用線１に掛止状となって周方向包囲状態となり、かつ、地上から操作棒１５にて開閉機構部１４が有する吊り輪３４にて吊り上げ状態とされて開口状態となるよう構成されている。
【００３０】
さらに、この開閉機構部１４と連動して補助ローラ６は、図６と図７に示すように、開口状態となる際に、補助ローラ６を取着する揺動アーム部材３２の基端部側にて工具本体部８との間のロック機構３５が外れ、重力により自動的に下方退避位置へ揺動するよう構成されている。従って、落下防止手段１２が開口状態で補助ローラ６が下方へ移動するため、図７に示すようにその開口部が広がり、吊架用線１への挿通工具の装着、及び、取り外しが容易となる。そして、挿通工具を吊架用線１へ装着すると、落下防止手段１２は開閉機構部１４により口閉じされて周方向包囲状態となる。また、下方退避位置に残された補助ローラ６は、操作棒１５により押し上げられると上記ロック機構３５により既設線条体７を持ち上げ可能とする上方作業位置に保持される。なお、補助ローラ６が作業において不要の場合は、この操作棒１５による押し上げロック操作を行わなければよい。
従って、地上から挿通工具の設置・取り外し、設定が可能で、作業者による宙吊り作業が不要とできる。
【００３１】
走行ローラ１１部についてさらに説明すると、本発明に係る挿通工具は、図４に示すように、走行ローラ１１，１１の両側方に配設され走行ローラ１１，１１が吊架用線１から脱線するのを防止する鍔部材１３，１３を夫々備えており、さらに、鍔部材１３は、走行ローラ１１とは独立して回転自在とされ、鍔部材１３は複数枚の羽根１６を有する放射状羽根車とされている。これにより、挿通工具を走行させている際に、ハンガー部材２と挿通工具とが相対的に揺れて位置ずれしても、ハンガー部材２が羽根１６，１６間に入り込むことができ、挿通工具を拘束させることがない。また、回転鍔部材１３が独立して回転するため、ハンガー部材２が羽根１６，１６間に入り込んでも無理な力が作用せず、挿通工具は滑らかに走行できる。従って、回転鍔部材１３の鍔径を大きくできるため、より確実に脱線の防止が可能となる。
【００３２】
【発明の効果】
本発明は上述の構成により次のような効果を奏する。
【００３３】
（請求項１によれば）電柱や建物等の支持構造体間に架設させたハンガー部材２付き吊架用線１において、先導針部材４によりハンガー部材２を吊架用線１から外すことなく線条体３を自動的にハンガー部材２へ挿通させることができる。
先導針部材４により押し上げられたハンガー部材２が吊架用線１廻りに回転しないように、ガイド部材５が作用するため、先導針部材４がハンガー部材２に引っ掛かることなくスムーズに通過できる。つまり、ハンガー部材２が吊架用線１の軸心廻りに回転しようとすると、ガイド部材５はハンガー部材２を強制的に下方へ押し戻し、ハンガー部材２を正規の位置・正規の揺動姿勢にさせることができる。
【００３４】
（請求項２によれば）先導針部材４が常に一定の所定位置に取付けされ、再現性が確保される。従って、作業者の熟練度に左右されずに先導針部材４を簡単かつ確実に工具本体部８に取付けができ、また、簡単に取り外しが可能である。また、先導針部材４をがたつかせずに固定でき、先導針部材４をハンガー部材５に対して所定位置に接触させることができる。その結果確実に線条体３を挿通させることができる。
【００３５】
（請求項３によれば）電柱や建物等の支持構造体間に架設させたハンガー部材２付き吊架用線１において、先導針部材４によりハンガー部材２を吊架用線１から外すことなく線条体３を自動的にハンガー部材２へ挿通させることができる。
ハンガー部材２から既設線条体７による荷重（自重）を除くことができるため、細い先導針部材４がハンガー部材２を容易に揺動させることができ、その結果、線条体３を確実にハンガー部材２へ挿通させることができる。ハンガー部材２を揺動させにくい通線方向からの（逆方向走行による）作業であり、かつ、ハンガー部材２に既設線条体７があっても、先導針部材４がハンガー部材２を押し上げることが可能となり、挿通作業が確実に行える。
【００３６】
（請求項４によれば）先導針部材４が常に一定の所定位置に取付けされ、再現性が確保される。従って、作業者の熟練度に左右されずに先導針部材４を簡単かつ確実に工具本体部８に取付けができ、また、簡単に取り外しが可能である。また、先導針部材４をがたつかせずに固定でき、先導針部材４をハンガー部材５に対して所定位置に接触させることができる。その結果確実に線条体３を挿通させることができる。
【００３７】
（請求項５によれば）電柱や建物等の支持構造体間に架設させたハンガー部材２付き吊架用線１において、先導針部材４によりハンガー部材２を吊架用線１から外すことなく線条体３を自動的にハンガー部材２へ挿通させることができる。
先導針部材４が常に一定の所定位置に取付けされ、再現性が確保される。従って、作業者の熟練度に左右されずに先導針部材４を簡単かつ確実に工具本体部８に取付けができ、また、簡単に取り外しが可能である。また、先導針部材４をがたつかせずに固定でき、先導針部材４をハンガー部材５に対して所定位置に接触させることができる。その結果確実に線条体３を挿通させることができる。
【００３８】
（請求項６によれば）作業場所にて小さな先導針部材４を取り替えるのみで、吊架用線１の方向性の違いに迅速に対応でき、２種類の挿通工具を予め用意しておく必要がない。つまり、挿通工具の走行方向性を無くすることができる。
【図面の簡単な説明】
【図１】線条体を架設させるハンガー部材付き吊架用線の実施の一形態を示す側面図である。
【図２】ハンガー部材付き吊架用線の正面図である。
【図３】本発明の線条体挿通工具の実施の一形態を示す平面図である。
【図４】正方向走行状態の線条体挿通工具の側面図である。
【図５】逆方向走行状態の線条体挿通工具の側面図である。
【図６】閉状態（周方向包囲状態）にある線条体挿通工具の正面図である。
【図７】開口状態にある線条体挿通工具の正面図である。
【図８】逆方向走行における先導針部材による挿通作業を説明する要部側面図である。
【図９】先導針部材の側面図である。
【図１０】先導針部材の正面図である。
【図１１】正方向走行状態におけるガイド部材による回転防止抑制作用を説明する要部側面図である。
【図１２】逆方向走行状態におけるガイド部材による回転防止抑制作用を説明する要部側面図である。
【図１３】従来の線条体挿通工具による作業の問題点を説明する側面図である。
【図１４】従来の線条体挿通工具による作業の問題点を説明する側面図である。
【符号の説明】
１ 吊架用線
２ ハンガー部材
２ａ 一端部
２ｂ 他端部
３ 線条体
４ 先導針部材
４ｂ 先端部
５ ガイド部材
６ 補助ローラ
７ 既設線条体
８ 工具本体部
９ 位置決め手段
１０ 固定手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a striated body insertion tool for inserting a striated body into a hanger member attached to a suspension wire in a suspended manner.
[0002]
[Prior art]
Conventionally, as means for inserting a striated body into a hanger member attached to a suspension line, a guide member dedicated for inserting the striated body is previously drawn along the suspension line. (For example, see Patent Document 1).
Further, as a means for performing the work without using such a guide member, an insertion tool that moves along a suspension line can be considered. However, since the suspension wire with the hanger member laid between the supporting structures such as telephone poles has directionality, in order to insert the umbilical member through the hanger member using the insertion tool, The corresponding dedicated insertion tool had to be used.
As shown in the side view of FIG. 1 and the front view of FIG. 2, “the hanger member 2 has a directionality” as shown in the side view of FIG. Attached so as to be rotatable around the axis and swingable in a direction along the axis, the whole is in a closed loop shape as viewed from the axis as shown in FIG. Since the hanger member 2 is hooked on the line 1 with the one end 2a at an interval P, the hanger member 2 easily swings in one direction (arrow a direction in FIG. 1), but in the other direction (arrow b direction). Has a direction of being hard to swing. One end 2a of the hanger member 2 is a pivot point side, and the other end 2b is a free end side.
Therefore, in order to move the wire 3 along the suspension wire 1 and to insert the striated body 3 into the hanger member 2, respective dedicated tools in both directions are prepared, and the suspension with the hanger member 2 installed is provided. They are used properly according to the overhead wire 1.
[0003]
[Patent Document 1]
JP 2001-112154 A
[0004]
[Problems to be solved by the invention]
The conventional insertion tool requires two types of insertion tools at the work place in order to correspond to the direction of the wire. In addition, as shown in the side view of FIG. 13, when a cable (the existing wire 7) has already been inserted into the hanger member 2, the conventional insertion tool pushes up and swings the hanger member 2 of the insertion tool. The member to be hung cannot swing the hanger member 2 to a predetermined position due to the weight of the cable (the existing wire body 7). As a result, the other end 2b of the hanger member 2 cannot be pushed up, and the striated body 3 to be inserted is inserted from the space between the one end 2a and the other end 2b of the hanger member 2. There is a problem that you can not. Furthermore, when the insertion tool 50 is moved along the suspension wire 1 in the direction of the line from the other end (free end) 2b side of the hanger member 2 to the one end (pivot point) 2a side, the hanger is moved. There is a problem that swinging the member 2 is more difficult (not smooth). Reference numeral 3 denotes a striated body 3 to be newly inserted.
On the other hand, if the hanger member 2 has no cable (existing wire 7), the hanger member 2 is rotatable around the axis of the suspension wire 1 as shown in FIG. When the leading member 49 pushes up the hanger member 2, the hanger member 2 rotates around the axis of the suspension wire 1, and the leading member 49 leading the filament 3 moves the predetermined position of the hanger member 2. There is a problem that they cannot get along because they do not pass and become entangled.
[0005]
Therefore, the present invention ensures that the striated body is not affected by the directionality of the hanging wire with the hanger member, and even if the cable is already drawn into the hanger member, without being affected by the cable. It is an object to provide a striated body insertion tool that can be inserted.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a wire insertion tool according to the present invention has an end portion rotatable around an axis of a suspension wire and swingable in a direction along the axis. A wire for inserting the striated body into a hanger member which is attached and has a closed loop shape as a whole when viewed from the axial direction and the other end of which is hooked at a distance from the one end to the suspension wire. A striated body insertion tool, wherein the striated body is attached to the tip end and moved along the suspension line to push up the other end side of the hanger member while slidingly contacting the hanger member and pushing up the hanger member. A leading needle member for passing the striated body through the hanger member by passing between the other end portion and the one end portion, and the hanger when the other end portion of the hanger member comes into sliding contact with the leading needle member. A guide member that suppresses a member from rotating around the axis of the suspension wire, It includes those were.
Further, the leading needle member is detachably attached to the tool main body, and the positioning means is capable of positioning the leading needle member in a predetermined posture with respect to the tool main body, and fixing means for fixing the leading needle member to the tool main body. And
Alternatively, one end is rotatable around the axis of the suspension wire, and is attached so as to be swingable in a direction along the axis, and the whole becomes a closed loop when viewed from the axis. The other end portion is a hanger member hooked to the suspension wire with an interval from the one end portion, and a new striated body is additionally inserted into the hanger member in which the existing striated body is already inserted. A striated body insertion tool, wherein the striated body is attached to a tip end and moved along the suspension line to push up the other end side of the hanger member while slidingly contacting the hanger member and pushing up the hanger member. A leading needle member for passing the striated body through the hanger member by passing between the other end portion and the one end portion, and the leading hanger member being inserted into the hanger member before the hanger member is slid on the leading needle member. And an auxiliary roller for lifting the existing striated body.
Further, the leading needle member is detachably attached to the tool main body, and the positioning means is capable of positioning the leading needle member in a predetermined posture with respect to the tool main body, and fixing means for fixing the leading needle member to the tool main body. And
Alternatively, one end is rotatable around the axis of the suspension wire, and is attached so as to be swingable in a direction along the axis, and the whole becomes a closed loop when viewed from the axis. And a wire body insertion tool for inserting the wire body into a hanger member having the other end hooked to the suspension wire at an interval from the one end, and attaching the wire body to the tip end. And moving along the suspension line to push up the other end of the hanger member while slidably contacting the hanger member and to pass between the pushed up other end and the one end. A leading needle member for inserting the leading needle member into the hanger member, the leading needle member is detachable from the tool body, and the leading needle member can be positioned in a predetermined posture with respect to the tool body. And fixing means for fixing to the tool body.
Further, the leading needle member is for forward traveling to move from the one end side to the other end side of the hanger member along the suspension line, and the hanger member along the suspension line. There are two types for traveling in the reverse direction to move from the other end side to the one end side, and are selectively attached to the tool main body.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
[0008]
FIG. 1 is a side view showing an embodiment of a suspension wire 1 with a hanger member 2 for erection (insertion) of a filament 3 by a filament insertion tool of the present invention, and FIG. It is a front view of service line 1. FIG. 3 is a plan view showing an embodiment of a striated body insertion tool, and FIG. 4 is a side view of the insertion tool in a forward traveling state. Further, FIG. 5 is a side view of the reverse running state, and FIG. 6 is a front view of the insertion tool. The “forward traveling” and “reverse traveling” will be described later.
[0009]
The striated body insertion tool according to the present invention mounts the striated body 3 on the hanger member 2 of the suspension wire 1 with the hanger member 2 erected between supporting structures such as utility poles and buildings. It is a tool that is inserted one after another by the operation from. More specifically, the insertion tool can travel along the suspension wire 1, and is attached to the insertion tool by pulling the operating rope 17 attached to the insertion tool from the ground. The striated body 3 is inserted through the hanger member 2 suspended from the suspension wire 1.
[0010]
The purpose of laying the striated body 3 along the suspension wire 1 is to finally make a cable such as an optical fiber or an electric wire be hung by the hanger member 2. After the striated body 3 is laid along the suspension wire 1, an optical fiber cable or the like is connected to the end of the striated body 3, the striated body 3 is wound up, and the optical fiber cable is connected to the suspension wire 1. This is for drawing in the hanger member 2. That is, the striated body 3 becomes a pulling pulling rope (lead wire).
[0011]
First, the hanger member 2 will be described. As shown in FIGS. 1 and 2, the hanger member 2 is formed by bending a single wire member into a substantially loop shape (substantially annular shape). The portion 2a is attached to a bearing portion 19 of a rotary fitting 18 rotatably fitted to the suspension wire 1 so as to be rotatable around the axis of the suspension wire 1 and the bearing portion 19a. In this case, the suspension wire 1 is swingable in a direction along the axis of the suspension wire 1. When viewed from the axial direction of the suspension wire 1, the entirety forms a closed loop, and the other end 2 b is provided at a predetermined distance from the one end 2 a to the suspension wire 1 in the axial direction of the suspension wire 1. This is a configuration that is hooked with P. That is, the hanger member 2 has the one end 2a side as a pivot point side and the other end 2b side as a free end side. Therefore, the hanger member 2 attached to the suspension wire 1 is easy to swing in one direction (the direction of the arrow a in FIG. 1), but is hard to swing in the other direction (the direction of the arrow b). It will have directionality.
[0012]
When the hanger member 2 is swung in the direction of the arrow a, the other end 2b is separated from the suspension wire 1 to an upper position to form a gap between the hanger member 2 and the one end 2a. The leading needle member 4 of the strip insertion tool passes through the gap.
Further, stopper metal fittings 37, 37 for preventing the rotary metal fitting 18 from being displaced in the axial direction are disposed in the longitudinal direction of the rotary metal fitting 18. A plurality of the hanger members 2 are arranged at a predetermined pitch in the laying direction (axial direction) on one suspension line 1 (a state in which the front-back positional relationship between the one end 2a and the other end 2b is common). Hanged at.
[0013]
The direction in which the striated body 3 is inserted into the hanger member 2 by the insertion tool is referred to as “forward travel” performed by moving the insertion tool from one end 2a of the hanger member 2 to the other end 2b. (Arrow c in FIG. 1) and "reverse direction travel" (arrow d in FIG. 1) performed by moving the tool from the other end 2b side to the one end 2a side. That is, as shown in FIG. 4, the forward traveling is a direction in which the hanger member 2 is pushed up while moving forward with respect to the traveling direction of the leading needle member 4 of the insertion tool. Can move. On the other hand, the reverse running is a direction in which the hanger member 2 is rocked and pushed up in a direction opposite to the traveling direction of the leading needle member 4, as shown in FIG. It is hard to swing compared to. However, in the present invention, work can be performed smoothly in both directions.
[0014]
Explaining the striated body insertion tool according to the present invention, the insertion tool includes a tool body 8 and a pair of tools that are attached to the tool body 8 in the front-rear direction and that can travel along the suspension wire 1. Running rollers 11, 11.
As a first embodiment, a leading needle member 4 attached to a substantially central portion in the front-rear direction of the tool main body 8 for inserting the filament 3 into the hanger member 2, and a portion above the leading needle member 4. A guide member 5 that is fixed to the tool body 8 at a nearby position and suppresses the hanger member 2 from rotating around the axis of the suspension wire 1 during the insertion operation.
[0015]
Further, as another embodiment, there is provided the leading needle member 4 described above and an auxiliary roller 6 for lifting an existing linear body (existing cable) 7 that has been inserted through the hanger member 2.
Further, another embodiment includes the above-described leading needle member 4, the guide member 5, and the auxiliary roller 6, which are shown in FIGS.
Further, the leading needle member 4 according to these embodiments will be described later, but is detachable from the tool main body 8 and the leading needle member 4 is held in a predetermined posture with respect to the tool main body 8. It has a positioning means 9 for positioning and a fixing means 10 for fixing to the tool body 8.
[0016]
Next, these structures will be described in detail. As shown in FIGS. 3 to 6, the tool main body 8 is disposed so as to sandwich the suspension wire 1 from both sides, and the axis of the suspension wire 1 is arranged. (Linear direction) Left and right frame members 21 and 21 having a predetermined length in the front-rear direction are provided. The traveling rollers 11, 11 are rotatably connected between the left and right frame members 21, 21 at respective front and rear positions. Therefore, the tool main body 8 travels along the suspension line 1 (along the suspension line 1) by the traveling rollers 11, 11. The running roller 11 is in the shape of a drum with a concave central portion, and does not meander the insertion tool.
[0017]
One of the frame members 21 has a side wall portion 29 protruding downward from a center portion in the front-rear direction, and a lower portion of the side wall portion 29 is bent toward the frame member 21 on the other side. It has towing arms 30 before and after the operation rope 17 is attached. Therefore, since the lower position of the insertion tool is pulled from the ground by the operation rope 17, the tool can run stably. Further, as shown in FIG. 6, since the weight 36 is provided at the lower part of the insertion tool (opening / closing member 33), the center of gravity of the tool is arranged in the lower region, and the tool is stabilized.
Further, the tool main body 8 has a symmetrical shape when viewed from the side, and the center of gravity is located at the center of the main body 8 in the front-rear direction. I can run without.
[0018]
The leading needle member 4 attaches the striated body 3 to be inserted into the hanger member 2 to the distal end portion 4b, and allows the striated body 3 to be inserted into the hanger member 2. The proximal end 4a of the leading needle member 4 is fixed to the frame member 21 on one side between the frame members 21 and 21 of the tool main body 8, and the distal end 4b is provided with a striated body such as a ring or a through hole. The attachment portion 20 is formed, and the end of the striated body 3 is attached to the attachment portion 20 (via a connection fitting not shown). The shape of the leading needle member 4 is such that an upper guide portion extending from the base end portion 4a forward in the traveling direction of the tool and curving upward once is formed, and then smoothly curved downward, and the upper guide portion is used for suspension. The three-dimensional bent shape is formed so as to straddle the position near the upper part of the wire 1 in a transverse manner and to be disposed at a position where the distal end portion 4b of the leading needle member 4 substantially vertically overlaps with the axis of the suspension wire 1 in plan view. It is a thin rod member.
[0019]
Then, as shown in the main part side view of FIG. 8, according to the configuration of the leading needle member 4, even if the traveling direction (insertion direction) of the insertion tool is the direction of arrow f, that is, "runs in the opposite direction". Even in the case of “forward running” (not shown), the leading needle member 4 moves along the suspension wire 1 and approaches the hanger member 2 to be inserted with the movement of the tool body 8. The upper guide portion of the leading needle member 4 pushes up the other end portion 2b of the hanger member 2 while slidingly contacting the other end portion 2b thereof, and the upper guide portion between the other end portion 2b and the one end portion 2a of the hanger member 2 pushed up by the leading needle member 4. By passing through the gap, the striated body 3 is inserted into the hanger member 2.
[0020]
9 and 10 are a side view and a front view, respectively, of the leading needle member 4. The leading needle member 4 is detachably attached to the tool body 8, and can be positioned in a predetermined posture with respect to the tool body 8. It has positioning means 9 and fixing means 10 for fixing to the tool body 8.
Further, the leading needle member 4 is used for traveling in the forward direction in which the leading needle member 4 is moved from the one end 2a side to the other end 2b side of the hanger member 2 along the suspension line 1, and the hanger member 2 is moved along the suspension line 1. And two types for traveling in the reverse direction to move from the other end 2b side to the one end 2a side, and are selectively attached to the tool body 8.
[0021]
That is, as shown in FIGS. 4 and 5, one tool main body 8 and two types of leading needle members 4, 4 constitute a set, and the directionality of the hanger member 2 of the suspension wire 1 is changed. It can be easily replaced at the work place according to the requirements. In addition, as shown in FIG. 2, any leading needle member 4 has a base end portion of the leading needle member 4 so as to correspond to a side (part e side) that becomes one end 2 a of the loop-shaped hanger member 2 in front view. 4 a is connected to the tool body 8. The shapes of the two types of leading needle members 4 are the same in the three-dimensional bending shape as described above, but the traveling directions of the tool body 8 are opposite in the “forward direction” and the “reverse direction”. Therefore, the leading end 4b side of the leading needle member 4 is in the opposite direction. In other words, the two types are (substantially) produced in opposite ways.
[0022]
The positioning means 9 and the fixing means 10 of the leading needle member 4 will be described with reference to FIGS. 9 and 10. The leading needle member 4 is inserted into a pair of through-holes 23 formed in the tool body 8 so as to be closely inserted. Positioning means 9 comprising a pair of positioning pins 24, 24 which can be positioned in a predetermined posture with respect to the tool body 8, a stopper member 25 for stopping the positioning pins 24 from the tool body 8, and a stopper member A fixing means 10 comprising a set screw member 26 for fixing the positioning pin 24 to the tool body 8 via the fixing pin 25.
[0023]
More specifically, the base end portion 4a of the leading needle member 4 is connected to the non-contact surface side of the flat pedestal portion 22 which can come into contact with the inner wall of the frame member 21 of the tool main body portion 8 so as to contact the inner wall. , Two positioning pins 24 are formed in a protruding shape. The outer diameter of the pin 24 and the inner diameter of the through hole 23 of the tool body 8 are substantially the same size so that the pin 24 does not rattle. Then, insertion holes 27, 27 are formed in the positioning pins 24, 24, respectively. Then, the pin 24 is prevented from being removed by the retaining member 25 having the insertion shaft portions 28, 28 inserted into the insertion holes 27, 27. Further, the retaining member 25 has a penetrating screw hole formed therein, and a screw member (a wing bolt) 26 is screwed in so that the distal end of the screw member 26 abuts against the outer wall of the frame member 21 of the tool main body 8 to be pressed. I do. Thereby, the leading needle member 4 can be firmly fixed to the tool body 8 without rattling.
[0024]
Next, the guide member 5 will be described. When the other end 2b of the hanger member 2 comes into sliding contact with the upper guide portion of the leading needle member 4, the hanger member 2 is moved to the axis of the suspension wire 1. It is to suppress the rotation around. The guide member 5 is located near the leading needle member 4 and is arranged so as to connect the upper portions of the left and right frame members 21 and 21 of the tool body 8. The position of the guide member 5 is an upper position on the distal end portion 4b side of the leading needle member 4 in the forward traveling (the arrow g in the traveling direction) shown in the side view of the main part in FIGS. In the reverse direction traveling (arrow h in the traveling direction) shown in the side view of the main part 12 of FIG. That is, the guide member 5 is provided only at one position where the hanger member 2 is in sliding contact with the leading needle member 4 and swings upward.
[0025]
Therefore, when the hanger member 2 is pushed up while sliding on the leading needle member 4, the hanger member 2 rotates around the axis of the suspension wire 1 (particularly when there is no existing filament 7) (twist rotation). Even if it starts, the hanger member 2 is forcibly pushed back downward. Therefore, the hanger member 2 can maintain the normal pushed position and the normal swing posture. As shown in FIGS. 11 and 12, the lower surface of the guide member 5 has a central push-back portion 31 that protrudes downward in a cross section and flange portions 38, 38 that extend upward on both sides (both front and rear sides). And form. By the flanges 38, the hanger member 2 does not catch on the push-back portion 31 of the guide member 5 in either the forward or reverse running direction, and the insertion tool can pass through the hanger member 2 smoothly.
[0026]
Next, as shown in FIG. 8, the auxiliary roller 6 is indispensable when a new filament 3 is additionally inserted into the hanger member 2 in which one or more existing filaments 7 have already been inserted. This is a member (auxiliary roll) that lifts the existing linear body 7 that has been inserted through the hanger member 2 before the hanger member 2 slides on the leading needle member 4. As shown in FIGS. 4 and 5, the specific configuration thereof is such that upper running rollers 11, 11 are provided on the tip end side of an arm member 32 attached to the tool body 8 (the side wall 29 of the frame member 21). Are arranged so as to have a rotation axis parallel to the horizontal rotation axis. Then, the auxiliary roller 6 lifts the existing linear body 7 in a state of being placed on the upper part of the auxiliary roller 6.
[0027]
Then, the top end height position of the auxiliary roller 6 (that is, the contact holding portion height position of the existing linear body 7 by the auxiliary roller 6) is in a naturally suspended state (the state shown in FIGS. 1 and 2). The height is set higher than the height position of the lower end of the hanger member 2 (on the inner peripheral side). Accordingly, as shown in FIGS. 5 and 8, when the insertion tool approaches the hanger member 2 to be inserted, the existing linear body 7 that has been inserted into the inner periphery of the hanger member 2 is moved to the existing linear body 7. Lifted up. As a result, the weight of the existing linear body 7 does not act on the hanger member 2, so that the hanger member 2 is easily swung by the leading needle member 4, and the one end 2 a and the other end 2 b of the hanger member 2 are connected. A predetermined gap can be formed therebetween.
[0028]
The auxiliary roller 6 will be described further. The shape of the auxiliary roller 6 is a drum-shaped column having a central portion that is concave with a smooth curve, and reduces the wobble of the insertion tool together with the traveling rollers 11 and 11 at the upper position.
The auxiliary roller 6 is effective when the operation is performed in the reverse direction and the existing wire 7 has been inserted into the hanger member 2. In the case where there is no 7 or in the case of traveling in the forward direction ───, it is unnecessary. Therefore, the swing arm member 32 to which the auxiliary roller 6 is attached is vertically swingable at the base end and can be held at the upper use position, as shown in FIG. In traveling, the auxiliary roller 6 may be moved to a retracted position below the hanger member 2 as indicated by a two-dot chain line.
[0029]
As shown in FIGS. 6 and 7, the insertion tool according to the present invention includes a dropping wire that surrounds the suspension wire 1 with the hanger member 2 to prevent the insertion tool from dropping from the suspension wire 1. It has prevention means 12. The drop prevention function of the drop prevention means 12 works in cooperation with the tool body 8 to surround the suspension wire 1 in the circumferential direction. That is, the fall prevention means 12 includes the opening / closing frame member 33 that is swingably connected to the frame members 21 and 21 of the tool main body 8, and the opening / closing frame member 33 is in the closed state and the suspension wire 1 is closed. And the insertion tool does not drop even if the traveling rollers 11, 11 derail from the suspension wire 1. Further, the drop prevention means 12 has an opening / closing mechanism 14 for switching the suspension wire 1 between a circumferentially surrounding state (FIG. 6) and an open state (FIG. 7). The drop prevention means 12 is configured such that the traveling rollers 11, 11 are hung on the suspension wire 1 by the opening / closing mechanism section 14 to be in a circumferentially surrounding state, and the opening / closing mechanism is operated by the operation rod 15 from the ground. It is configured to be in a state of being lifted by a suspension ring 34 of the portion 14 and to be in an open state.
[0030]
Further, in cooperation with the opening / closing mechanism 14, the auxiliary roller 6 is moved to an open state, as shown in FIGS. , The lock mechanism 35 between the tool body 8 and the tool body 8 is disengaged, and automatically swings to the lower retreat position by gravity. Accordingly, since the auxiliary roller 6 moves downward with the fall prevention means 12 in the open state, the opening is widened as shown in FIG. 7, so that the insertion tool can be easily attached to and detached from the suspension wire 1. Become. Then, when the insertion tool is mounted on the suspension wire 1, the fall prevention means 12 is closed by the opening / closing mechanism 14 and is in a circumferentially surrounded state. When the auxiliary roller 6 left at the lower retreat position is pushed up by the operating rod 15, it is held at the upper working position where the lock mechanism 35 can lift the existing linear body 7. When the auxiliary roller 6 is not necessary for the operation, the push-up lock operation by the operation rod 15 may not be performed.
Therefore, the insertion tool can be installed, removed, and set from the ground, and the hanging work by the operator can be unnecessary.
[0031]
Describing the traveling roller 11 further, the insertion tool according to the present invention is disposed on both sides of the traveling rollers 11, 11 and the traveling rollers 11, 11 are derailed from the suspension wire 1, as shown in FIG. Each of the flange members 13 and 13 is provided so as to be rotatable independently of the traveling roller 11, and the flange member 13 includes a radial impeller having a plurality of blades 16. Have been. Thereby, even if the hanger member 2 and the insertion tool are relatively shaken and displaced while the insertion tool is running, the hanger member 2 can enter between the blades 16 and 16, and the insertion tool can be moved. No restraint. In addition, since the rotating flange member 13 rotates independently, even if the hanger member 2 enters between the blades 16, no excessive force is applied, and the insertion tool can travel smoothly. Therefore, since the flange diameter of the rotating flange member 13 can be increased, derailment can be more reliably prevented.
[0032]
【The invention's effect】
The present invention has the following effects by the above configuration.
[0033]
According to the first aspect, in the suspension wire 1 with the hanger member 2 erected between support structures such as utility poles and buildings, the hanger member 2 is not removed from the suspension wire 1 by the leading needle member 4. The striated body 3 can be automatically inserted into the hanger member 2.
Since the guide member 5 acts so that the hanger member 2 pushed up by the leading needle member 4 does not rotate around the suspension wire 1, the leading needle member 4 can pass smoothly without being caught on the hanger member 2. In other words, when the hanger member 2 tries to rotate around the axis of the suspension wire 1, the guide member 5 forcibly pushes the hanger member 2 back downward, and the hanger member 2 is brought to a normal position and a normal swing posture. Can be done.
[0034]
(According to claim 2) The leading needle member 4 is always mounted at a fixed predetermined position, and reproducibility is ensured. Therefore, the leading needle member 4 can be easily and reliably attached to the tool main body 8 irrespective of the skill of the operator, and can be easily removed. Further, the leading needle member 4 can be fixed without rattling, and the leading needle member 4 can be brought into contact with the hanger member 5 at a predetermined position. As a result, the striated body 3 can be reliably inserted.
[0035]
According to the third aspect, in the suspension wire 1 with the hanger member 2 provided between support structures such as utility poles and buildings, the hanger member 2 is not removed from the suspension wire 1 by the leading needle member 4. The striated body 3 can be automatically inserted into the hanger member 2.
Since the load (self-weight) of the existing striated body 7 can be removed from the hanger member 2, the thin leading needle member 4 can easily swing the hanger member 2, and as a result, the striated body 3 can be securely moved. It can be inserted through the hanger member 2. The work is performed from the direction of the wire that is difficult to swing the hanger member 2 (by running in the reverse direction), and the leading needle member 4 pushes up the hanger member 2 even if the hanger member 2 has the existing wire 7. And the insertion operation can be performed reliably.
[0036]
(According to claim 4), the leading needle member 4 is always mounted at a fixed predetermined position, and reproducibility is ensured. Therefore, the leading needle member 4 can be easily and reliably attached to the tool body 8 without being affected by the skill of the operator, and can be easily removed. Further, the leading needle member 4 can be fixed without rattling, and the leading needle member 4 can be brought into contact with the hanger member 5 at a predetermined position. As a result, the striated body 3 can be reliably inserted.
[0037]
In the suspension wire 1 with the hanger member 2 erected between supporting structures such as utility poles and buildings (according to claim 5), the hanger member 2 is not removed from the suspension wire 1 by the leading needle member 4. The striated body 3 can be automatically inserted into the hanger member 2.
The leading needle member 4 is always mounted at a fixed predetermined position, and reproducibility is ensured. Therefore, the leading needle member 4 can be easily and reliably attached to the tool body 8 without being affected by the skill of the operator, and can be easily removed. Further, the leading needle member 4 can be fixed without rattling, and the leading needle member 4 can be brought into contact with the hanger member 5 at a predetermined position. As a result, the striated body 3 can be reliably inserted.
[0038]
(According to claim 6) It is possible to quickly respond to the difference in the directionality of the suspension wire 1 only by replacing the small leading needle member 4 at the work place, and it is necessary to prepare two kinds of insertion tools in advance. There is no. That is, the traveling direction of the insertion tool can be eliminated.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a suspension wire with a hanger member for laying a striated body.
FIG. 2 is a front view of a suspension wire with a hanger member.
FIG. 3 is a plan view showing an embodiment of a striated body insertion tool of the present invention.
FIG. 4 is a side view of the striated body insertion tool in a forward traveling state.
FIG. 5 is a side view of the filament insertion tool in a reverse running state.
FIG. 6 is a front view of the striated body insertion tool in a closed state (circumferential surrounding state).
FIG. 7 is a front view of the striated body insertion tool in an open state.
FIG. 8 is a main part side view for explaining the insertion operation by the leading needle member in the reverse traveling.
FIG. 9 is a side view of the leading needle member.
FIG. 10 is a front view of a leading needle member.
FIG. 11 is a main part side view for explaining the rotation preventing and suppressing action of the guide member in the forward running state.
FIG. 12 is a main part side view for explaining a rotation preventing and suppressing action of a guide member in a reverse traveling state.
FIG. 13 is a side view for explaining the problem of the operation by the conventional striated body insertion tool.
FIG. 14 is a side view for explaining a problem of an operation using a conventional striated body insertion tool.
[Explanation of symbols]
1 Suspension wire
2 Hanger members
2a One end
2b The other end
3 striatum
4 Leading needle member
4b Tip
5 Guide member
6 Auxiliary roller
7 Existing striatum
8 Tool body
9 Positioning means
10 Fixing means
