JP3950674B2

JP3950674B2 - Electric wire fixture

Info

Publication number: JP3950674B2
Application number: JP2001350659A
Authority: JP
Inventors: 栄三根岸; 幹雄浦野; 喜重井上
Original assignee: 名伸電機株式会社
Priority date: 2001-11-15
Filing date: 2001-11-15
Publication date: 2007-08-01
Anticipated expiration: 2021-11-15
Also published as: JP2003158803A

Description

【０００１】
【発明の属する技術分野】
本発明は、ピン碍子に沿わせるようにして電柱の上部に架設される電線、例えば高圧電線における本線または本線と本線を接続するための縁回り電線をピン碍子に留めるための電線固定具に関するものである。
【０００２】
【従来の技術】
例えば、高圧電線を電柱間に架設する場合、電柱の前後で腕金から耐張碍子を互いに反対方向へ延設し、これら耐張碍子に連接される引留クランプに本線（高圧電線）の端部をそれぞれ接続している。前記引留クランプは通常引留クランプカバーにより被覆される。また、前記電柱を挟んだ両側の本線を電気的に接続するため、両本線の端部間に縁回り電線を接続している。この縁回り電線は一方の引留クランプカバーから引き出され、上方に立ち上げられると共に腕金上面に立設されるピン碍子に留められ、他方の引留クランプカバーに引き入れられる。なお、前記ピン碍子は、電線が風等で揺れ電線間事故を起こさないようにする必要があることから、高く設置されている。
【０００３】
【発明が解決しようとする課題】
前記電線をピン碍子に留め固定するには、そのピン碍子に電線を沿わせた状態で、長い金属製のバインド線を電線更にはピン碍子に螺旋状に巻回するようにしているが、バインド線が長くしかもしっかり巻回させる必要があることから、電線の固定作業が面倒であり作業能率が良くないという課題がある。また、仮に電線の被覆層にピンホールがあると前記バインド線が帯電する場合がある。このような状態で、鳥が営巣目的をもって縁回り電線の部位に飛来し、腕金を基礎にしてその腕金と縁回り電線との間に営巣材として針金等の金属線材を持ち込むと、帯電した前記バインド線に触れて短絡し、配電線事故を起こすという課題がある。
【０００４】
そこで、本発明は上記課題を解決すべくなされたもので、簡単な操作によりピン碍子に被着できて作業性に優れ、しかも電線がピン碍子にしっかりと固定でき、これにより配電線事故を起こさないようにした電線固定具を提供することを目的とするものである。
【０００５】
【課題を解決するための手段】
かかる目的を達成するため、本発明に係る電線固定具は、ピン碍子に沿わせるようにして電柱の上部に架設される電線を該ピン碍子に留めるための電線固定具であって、前記ピン碍子に被着するため中空でありかつ下面が開放される絶縁性のカバー部材と、前記カバー部材内に配置されると共に前記電線に掛止して該電線を固定するための掛止部材と、から構成される。
【０００６】
このように、ピン碍子に絶縁性のカバー部材を被着するのみで電線が固定できることとなり、作業が簡単になる。また、カバー部材が絶縁性を有することから、このカバー部材に営巣材として針金等の金属線材が接触しても短絡することがなく、配電線事故が防止される。また、前記カバー部材内に前記電線に掛止して該電線を固定するための掛止部材を配置することにより、電線がピン碍子にしっかりと固定され、長期使用にも十分耐えることができる。
【０００７】
前記掛止部材は、例えば、基端部が前記カバー部材の内周面に固着される弾性を備えた金属線からなり、その先端部には前記電線に掛止して該電線を前記ピン碍子に固定しておくための電線掛止部を設けた構成が選ばれる。
【０００８】
また、他の電線固定具として、ピン碍子に沿わせるようにして電柱の上部に架設される電線を該ピン碍子に留めるための絶縁性の電線固定具であって、前記ピン碍子の上面を覆う本体部と、前記本体部の一端側に設けられ前記電線に掛止する電線掛止部と、前記本体部の他端側に螺装されると共に進出して先端の押え爪部材を前記ピン碍子の外周面に押し当て電線を電線掛止部によりピン碍子側へ引き寄せて固定する締止部材と、からなる構成がある。
【０００９】
【発明の実施の形態】
以下、本発明に係る電線固定具の実施の形態を図面と共に説明する。なお、電線には、電柱間に架設される本線と両本線の端部間を接続する縁回り電線とがあるが、その一例として縁回り電線について説明する。図１乃至図１０は第一実施の形態に係る電線固定具を示すもので、図１は電線固定具の正面図、図２は同平面図、図３は同側面図、図４は図１のＶ−Ｖ線断面図、図５は図２のＷ−Ｗ線断面図をそれぞれ示す。
【００１０】
電線固定具Ａは、後記するピン碍子Ｐに被着するカバー部材１と、該カバー部材１内に配置されかつインサート成形によりカバー部材１と一体に成形されかつ後記する電線Ｄに掛止して該電線Ｄを固定する掛止部材２と、から構成されている。前記カバー部材１は、ガラス繊維が混入され、硬質のポリエチレン等の硬質合成樹脂材といった絶縁性及び難燃性を有する材質により成形され、内部が中空でありかつ下面が開放している。更に詳しく説明すると、大径椀部３ａとその上面に一体に設けられ連通する小径椀部３ｂとを有し、この小径椀部３ｂ内にピン碍子Ｐ上端の第一傘部ｐ１が嵌入し、また大径椀部３ａ内に次の第二傘部ｐ２が嵌入し得るようにその大きさが選ばれる。
【００１１】
前記大・小径椀部３ａ，３ｂの両側には、その一端側位置に大・小径椀部３ａ，３ｂのほぼ中間に位置しかつ内部と連通すると共に互いに反対方向へほぼ直線的に伸びる軸筒部４がそれぞれ一体的に突設されている。この軸筒部４は電線Ｄが挿通されるもので、先端が開口５すると共にその先端に向かって漸次小径となるテーパ部６が設けられる。また、このテーパ部６には、その外周面に所定の間隔離してテーパ部６の中心軸線に対し直角をなす複数本の環状薄肉部７が設けられる。これは、外径寸法の異なる電線Ｄに対応できるようにするためであり、使用される電線Ｄの外径と同じ寸法の環状薄肉部７に沿って簡単に切断できるようになっている。
【００１２】
また、前記各軸筒部４の下側に、前記大径椀部３ａに亘り各軸筒部４の中心軸線と平行な切り込み８が設けられ、大径椀部３ａを含め両軸筒部４が切り込み８によって自在に開閉できるようになっている。これにより電線Ｄに被着可能となる。各軸筒部４の切り込み８の両側に、その切り込み８に沿って連結片９がそれぞれ一体に延設されている。これら対峙する連結片９には、互いに嵌脱自在に係合する係合片１０と係合孔１１が対応位置させて設けられる。これら係合片１０と係合孔１１は対峙する連結片９を互いに強く挟むことにより係合できる。前記大径椀部３ａの外周面中央の対向位置に前記軸筒部４とほぼ直角をなす一対の挟持片１２が突設される。これは、電線固定具Ａを例えば後記する絶縁ヤットコＹを使用して遠隔操作によりピン碍子Ｐに被着する場合、前記絶縁ヤットコＹの先端挟着部１６により挟持し得るようにするためのものである。
【００１３】
前記掛止部材２は弾性を備えた金属線、または例えばＦＲＰ等の十分硬度を持った樹脂材から成形され、図２に示すように平面Ｕ字状をなし、基端部１３ａ側から伸びる両腕杆部１３ｂの先端に電線Ｄに掛止するフック状の電線掛止部１４が設けられる。そして、掛止部材２は、電線掛止部１４が軸筒部４側に位置するようにして小径椀部３ｂ内に配置され、基端部１３ａが小径椀部３ｂの内周面に形成された膨出部１５内にインサート成形により一体に固着されている。前記腕杆部１３ｂの長さ寸法や電線掛止部１４の形状は、切り込み８を開いて電線固定具Ａを電線Ｄと共にピン碍子Ｐに被着する際、電線掛止部１４が電線Ｄに掛止でき、しかも被着した後は、電線掛止部１４が緩んで電線Ｄがガタつかないように設定される。
【００１４】
第一実施の形態に係る電線固定具Ａは上記構成よりなり、次に図６乃至図１０に基づきその取付方法について説明する。図中、ＤＣは電柱、Ｕはその電柱ＤＣの上部に横架される腕金であり、その上面にピン碍子Ｐが立設されている。また、前記腕金Ｕから耐張碍子Ｔが互いに反対方向へ延設され、これら耐張碍子Ｔに連接される引留クランプ（図示せず。）に電線Ｄである本線Ｈの端部をそれぞれ接続している。前記引留クランプは通常引留クランプカバーＫにより被覆される。また、前記電柱ＤＣを挟んだ両側の本線Ｈを電気的に接続するため、両本線Ｈの端部間に電線Ｄである縁回り電線Ｆを接続している。この縁回り電線Ｆは、ピン碍子Ｐの一側であって上端の第一傘部ｐ１と第二傘部ｐ２との間の環状窪みＯに沿うようにして配設される。前記本線Ｈは高圧電線であり、取付作業は活線状態で行なわれる。作業者は作業車に装着された昇降自在なバケット（図示せず。）に乗り込み、絶縁ヤットコＹと称される工具を用いる。
【００１５】
そして、作業者はバケットを上昇させ、切り込み８を開けた状態で反対側の挟持片１２を絶縁ヤットコＹの先端挟着部１６により挟持して電線固定具Ａを図６に示すように持ち上げる。次に、図７に示すように切り込み８間に縁回り電線Ｆを介入し、この縁回り電線Ｆを両軸筒部４内に入れると共に掛止部材２先端の両電線掛止部１４を縁回り電線Ｆに掛け止める。更に、大径・小径椀部３ａ，３ｂをピン碍子Ｐに被せる。最後に、対峙する両連結片９を前記絶縁ヤットコＹの先端挟着部１６により挟持して係合孔１１に係合片１０を係合させる。
【００１６】
これにより、図８乃至図１０に示すようにピン碍子Ｐに縁回り電線Ｆが固定され、小径椀部３ｂと大径椀部３ａ内に上端の第一傘部ｐ１と第二傘部ｐ２がそれぞれ嵌り込んだ状態でカバー部材１がピン碍子Ｐに被着される。このように、カバー部材１をピン碍子Ｐに被着すると同時に掛止部材２も電線Ｄに掛止できるようになっており、カバー部材１の取付が簡単である。また、これと同時に、掛止部材２により電線Ｄがピン碍子Ｐにしっかりと固定され、長期使用にも十分耐え得るようになっている。更に、カバー部材１は、ポリエチレン等の合成樹脂材といった絶縁性及び難燃性を有する材質により成形されていることから、針金等の金属線材が接触しても短絡することがなく、しかも強度的に強くて破損のおそれも少ないばかりか耐候性に優れる。
【００１７】
図１１乃至図１７は、第二実施の形態に係る電線固定具Ａ２を示すもので、この電線固定具Ａ２は、縁回り電線Ｆが上端の第一傘部ｐ１の上面に設けられた直線状窪みＯ１に沿って配設されたピン碍子Ｐに被着するようにしたものである。なお、本実施の形態と同一部位は同一番号を付すことにより詳しい説明は省略する。
【００１８】
前記電線固定具Ａ２は、ピン碍子Ｐに被着するカバー部材１と、該カバー部材１内に配置されると共にインサート成形によりカバー部材１と一体に成形されかつ電線Ｄに掛止して該電線Ｄを固定する掛止部材２と、から構成されている。前記と同様にカバー部材１は、ガラス繊維が混入され、硬質のポリエチレン等の硬質合成樹脂材といった絶縁性及び難燃性を有する材質により成形され、内部が中空でありかつ下面が開放している。更に詳しく説明すると、椀状本体部３内にピン碍子Ｐ上端の第一傘部ｐ１が嵌入し得るようにその大きさが選ばれる。
【００１９】
前記椀状本体部３の両側には、その中央位置に内部と連通すると共に互いに反対方向へ直線的に伸びる軸筒部４がそれぞれ一体的に突設されている。この軸筒部４は、先端が開口５すると共にその先端に向かって漸次小径となるテーパ部６が設けられる。また、このテーパ部６には、前記と同様にその外周面に所定の間隔離してテーパ部６の中心軸線に対し直角をなす複数本の環状薄肉部７が設けられる。
【００２０】
また、前記各軸筒部４の下側には、前記椀状本体部３に亘り各軸筒部４の中心軸線と平行に切り込み８が設けられ、椀状本体部３を含め両軸筒部４が切り込み８によって自在に開閉できるようになっている。各軸筒部４の切り込み８の両側にはその切り込み８に沿って連結片９がそれぞれ一体に延設されている。これら対峙する連結片９には、互いに嵌脱自在に係合する係合片１０と係合孔１１が対応位置させて設けられる。これら係合片１０と係合孔１１は対峙する連結片９を互いに強く挟むことにより係合できる。前記椀状本体部３の外周面中央の対向位置に前記軸筒部４とほぼ直角をなす一対の挟持片１２が突設される。
【００２１】
前記掛止部材２も弾性の有る金属線、または例えばＦＲＰ等の十分硬度を持った樹脂材から成形され、図１２に示すように平面略Ｕ字状をなし、基端部１３ａ側から伸びる両腕杆部１３ｂの先端に電線Ｄに掛止するフック状の電線掛止部１４が設けられる。そして、掛止部材２は、電線掛止部１４が中央側に位置するようにして椀状本体部３内に配置され、基端部１３ａが椀状本体部３の内周面に形成された膨出部１５内にインサート成形により一体に固着されている。前記腕杆部１３ｂの長さ寸法や電線掛止部１４の形状は、切り込み８を開いて電線Ｄと共にピン碍子Ｐに電線固定具Ａを被着する際、電線掛止部１４が電線Ｄに掛止でき、しかも被着した後は、電線掛止部１４が緩んで電線Ｄががたつかないように設定される。
【００２２】
第二実施の形態に係る電線固定具Ａ２は上記構成よりなり、第一実施の形態に係る電線固定具Ａの場合と同様に絶縁ヤットコＹを用いて、切り込み８を開けた状態で反対側の挟持片１２を絶縁ヤットコＹの先端挟着部１６により挟持して電線固定具Ａ２を持ち上げる。次に、切り込み８間に縁回り電線Ｆを介入し、この縁回り電線Ｆを両軸筒部４内に入れると共に掛止部材２先端の両電線掛止部１４を電線Ｄに掛け止めて椀状本体部３をピン碍子Ｐに被せる。最後に、対峙する両連結片９を前記絶縁ヤットコＹの先端挟着部１６により挟持して係合孔１１に係合片１０を係合させる。
【００２３】
これにより、図１６、図１７に示すように、ピン碍子Ｐに電線Ｄが固定され、椀状本体部３内に上端の第一傘部ｐ１が嵌り込んだ状態でカバー部材１がピン碍子Ｐに被着される。このようにカバー部材１を被着すると同時に掛止部材２も掛止できるようになっており、カバー部材１の取付が簡単である。また、これと同時に、掛止部材２により電線Ｄがピン碍子Ｐにしっかりと固定され、長期使用にも十分耐え得るようになっている。更に、カバー部材１は、ポリエチレン等の合成樹脂材といった絶縁性及び難燃性を有する材質により成形されていることから、針金等の金属線材が接触しても短絡することがなく、しかも強度的に強くて破損のおそれも少ないばかりか耐候性に優れる。
【００２４】
図１８乃至図２３は、第三実施の形態に係る電線固定具Ａ３を示すもので、第一実施の形態と同様に縁回り電線Ｆがピン碍子Ｐの一側であって上端の第一傘部ｐ１と第二傘部ｐ２との間の環状窪みＯに沿うようにして配設される場合に使用するものである。この電線固定具Ａ３は、前記と同様にガラス繊維が混入され、硬質のポリエチレン等の硬質合成樹脂材といった絶縁性及び難燃性を有する材質により成形される。
【００２５】
そして、前記電線固定具Ａ３は、ピン碍子Ｐの上面を覆う略方形平板状の本体部１７を有し、この本体部１７の一端に前記ピン碍子Ｐの一側に沿う前記縁回り電線Ｆに掛止する電線掛止部１８が設けられる。電線掛止部１８は、図１９、図２０に示すように本体部１７の一端から下方へ断面半円弧状に一体に延設され、本体部１７の両側より外側に張り出させて設けられている。一方、本体部１７の他端には、前記電線掛止部１８と同方向に折曲しかつ電線掛止部１８に対し本体部１７の上面と平行な面上でやや傾く保持板部１９が一体に設けられている。また、この保持板部１９にはほぼ中央部に螺子孔２０が貫設される。この螺子孔２０は内側が上を向くように開設される。
【００２６】
前記螺子孔２０にはこの螺子孔２０に沿って進退動する締止部材２１が螺装される。この締止部材２１は、前記縁回り電線Ｆを前記ピン碍子Ｐへ押圧して固定するためのものであり、前記螺子孔２０に螺合される螺子軸２１ａを有し、保持板部１９の内側に位置する螺子軸２１ａの端部に凹窪部２２を有する押え爪部材２３が設けられている。この押え爪部材２３は螺子軸２１ａに対し自在に回転できるようになっている。前記保持板部１９の外側に位置する螺子軸２１ａの端部には、絶縁性の操作棒Ｓにより操作されるアダプター２４が一体に設けられる。このアダプター２４は、後端面が開放される中空状の円筒体２４ａからなり、この円筒体２４ａの周面に対向位置して後端縁側が開放する一対のＴ型係合溝２５が設けられている。
【００２７】
第三実施の形態に係る電線固定具Ａ３は上記構成よりなり、アダプター２４の両Ｔ型係合溝２５に操作棒Ｓ先端の一対の係合ピン２６を挿入し、電線固定具Ａ３を持ち上げる。そして、この電線固定具Ａ３をピン碍子Ｐに被着する。この際、本体部１７を第一傘部ｐ１の上面に位置させると共に縁回り電線Ｆに電線掛止部１８を掛止させる。この状態で、前記操作棒Ｓを回転させて螺子軸２１ａを保持板部１９の内側へ進出させ、先端の凹窪部２２をピン碍子Ｐの第一傘部ｐ１と第二傘部ｐ２との間の環状窪みＯに介在させてその外周面に押し当たる。この動作を続けることにより、前記電線掛止部１８がピン碍子Ｐ側へ移動し、図２２、図２３に示すように前記縁回り電線Ｆがピン碍子Ｐ側へ引寄せられ電線掛止部１８とにより締付け固定される。作業が終われば、アダプター２４から操作棒Ｓの先端部を抜いて取り外す。
【００２８】
このような電線固定具Ａ３は、操作棒Ｓを回転させるのみでピン碍子Ｐに被着でき、作業が極めて簡単になる。しかも、縁回り電線Ｆがピン碍子Ｐにしっかりと固定され、長期使用にも十分耐え得るようになっている。また、本体部１７は、先に説明したようにポリエチレン等の合成樹脂材といった絶縁性及び難燃性を有する材質により成形されていることから、針金等の金属線材が接触しても短絡することがなく、しかも強度的に強くて破損のおそれも少ないばかりか耐候性に優れる。
【００２９】
なお、前記電線を固定するための掛止部材は第一・第二実施の形態で説明した構成に限るものではない。
【００３０】
【発明の効果】
以上説明したように本発明に係る電線固定具は、ピン碍子に被着するため中空でありかつ下面が開放される絶縁性のカバー部材と、前記カバー部材内に配置されると共に電線に掛止して該電線を固定するための掛止部材とから構成され、ピン碍子にカバー部材を被着するのみで、電柱の上部に架設される電線をピン碍子に留めて固定することができることから、電線の固定作業が簡単となり作業能率が向上する。また、前記カバー部材に営巣材として針金等の金属線材が接触しても短絡することがなく、配電線事故が防止される。更に、前記カバー部材内に前記電線に掛止して該電線を固定するための掛止部材を配置するようにしたので、電線がピン碍子にしっかりと固定され、長期使用に十分耐えることができる。
【００３１】
また、ピン碍子の上面を覆う絶縁性の本体部と、前記本体部の一端側に設けられ前記ピン碍子の一側に沿う電線に掛止する電線掛止部と、前記本体部の他端側に螺装されると共に進出して先端の押え爪部材を前記ピン碍子の外周面に押し当て電線を電線掛止部によりピン碍子側へ引き寄せて固定する締止部材と、からなる電線固定具にあっては、ピン碍子に被着してアダプターに操作棒の先端を差し込み、その操作棒を回転させるのみでピン碍子に電線が固定できるので、操作が極めて簡単となり、作業能率が一層向上するという効果がある。
【図面の簡単な説明】
【図１】第１実施の形態に係る電線固定具の正面図。
【図２】第１実施の形態に係る電線固定具の平面図。
【図３】第１実施の形態に係る電線固定具の側面図。
【図４】図１のＶ−Ｖ線断面図。
【図５】図２のＷ−Ｗ線断面図。
【図６】第１実施の形態に係る電線固定具をピン碍子に被着する前の使用状態図。
【図７】第１実施の形態に係る電線固定具の被着する状態を示す側面断面図。
【図８】第１実施の形態に係る電線固定具をピン碍子に被着した後の使用状態図。
【図９】第１実施の形態に係る電線固定具のピン碍子に被着した後の正面断面図。
【図１０】第１実施の形態に係る電線固定具のピン碍子に被着した後の側面断面図。
【図１１】第２実施の形態に係る電線固定具の正面図。
【図１２】第２実施の形態に係る電線固定具の平面図。
【図１３】第２実施の形態に係る電線固定具の側面図。
【図１４】図１１のＸ−Ｘ線断面図。
【図１５】図１２のＹ−Ｙ線断面図。
【図１６】第２実施の形態に係る電線固定具のピン碍子に被着した後の正面断面図。
【図１７】第２実施の形態に係る電線固定具のピン碍子に被着した後の側面断面図。
【図１８】第３実施の形態に係る電線固定具の正面図。
【図１９】第３実施の形態に係る電線固定具の平面図。
【図２０】第３実施の形態に係る電線固定具の側面図。
【図２１】図１９のＺ−Ｚ線断面図。
【図２２】第３実施の形態に係る電線固定具のピン碍子に被着した後の平面図。
【図２３】第３実施の形態に係る電線固定具のピン碍子に被着した後の側面図。
【符号の説明】
１カバー部材
２掛止部材
４軸筒部
１３ａ基端部
１３ｂ腕杆部
１４電線掛止部
１７本体部
１８電線掛止部
２１締止部材
２３押え爪部材
Ａ，Ａ２，Ａ３電線固定具
Ｄ電線
ＤＣ電柱
Ｐピン碍子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric wire fixing tool for fastening an electric wire installed on an upper portion of a power pole so as to be along a pin insulator, for example, a main wire in a high-voltage electric wire or an edge-around electric wire for connecting the main wire and the main wire to the pin insulator. It is.
[0002]
[Prior art]
For example, when installing a high-voltage wire between utility poles, tension insulators are extended in opposite directions from the armature before and after the utility pole, and the end of the main line (high-voltage wire) is attached to the tension clamp connected to these tension insulators. Are connected to each other. The tension clamp is usually covered with a tension clamp cover. Further, in order to electrically connect the main lines on both sides of the electric pole, an edge wire is connected between the ends of both main lines. The wire around the edge is pulled out from one of the retaining clamp covers, is raised upward, is fastened to a pin insulator standing on the upper surface of the arm metal, and is pulled into the other retaining clamp cover. Note that the pin insulator is installed high because it is necessary to prevent the electric wire from shaking due to wind or the like and causing an accident between the electric wires.
[0003]
[Problems to be solved by the invention]
In order to fasten and fix the electric wire to the pin insulator, a long metal binding wire is wound around the electric wire and further the pin insulator in a state where the electric wire is placed along the pin insulator. Since it is necessary to wind the wire long and firmly, there is a problem that the work of fixing the electric wire is troublesome and the work efficiency is not good. Further, if there is a pinhole in the coating layer of the electric wire, the bind wire may be charged. In such a state, when a bird flies to the edge wire for the purpose of nesting and brings a metal wire such as a wire as a nesting material between the arm and the wire around the arm, There is a problem that a short circuit occurs by touching the bind wire, causing a distribution line accident.
[0004]
Therefore, the present invention has been made to solve the above-mentioned problems, and can be attached to the pin insulator by a simple operation and has excellent workability, and the electric wire can be firmly fixed to the pin insulator, thereby causing a distribution line accident. An object of the present invention is to provide an electric wire fixture that is not provided.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an electric wire fixture according to the present invention is an electric wire fixture for fastening an electric wire installed on an upper portion of an electric pole so as to be along a pin insulator to the pin insulator, the pin insulator being in a hollow in it and insulative cover member lower surface is opened for depositing, from the latching member for fixing the electric wire and hooked on the wire while being disposed in the cover member Composed.
[0006]
As described above, the electric wire can be fixed only by attaching the insulating cover member to the pin insulator, and the operation is simplified. In addition, since the cover member has an insulating property, even if a metal wire such as a wire comes into contact with the cover member as a nesting material, there is no short circuit, and a distribution line accident is prevented. Further, by arranging a latching member for latching the electric wire and fixing the electric wire in the cover member, the electric wire is firmly fixed to the pin insulator and can sufficiently withstand long-term use.
[0007]
The hooking member is made of, for example, a metal wire having elasticity whose base end portion is fixed to the inner peripheral surface of the cover member, and the tip end portion of the hooking member is hooked on the electric wire to connect the electric wire to the pin insulator. The structure which provided the electric wire latching part for fixing to is selected.
[0008]
In addition, as another electric wire fixing device, an insulating electric wire fixing device for fixing an electric wire installed on the upper portion of the electric pole so as to be along the pin insulator to the pin insulator, and covering an upper surface of the pin insulator A main body part, an electric wire hooking part provided on one end side of the main body part and hooked to the electric wire, and screwed to the other end side of the main body part and advanced to move the presser claw member at the tip to the pin insulator There is a configuration comprising a fastening member that presses against the outer peripheral surface of the wire and pulls the wire toward the pin insulator by the wire latching portion and fixes the wire .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an electric wire fixture according to the present invention will be described with reference to the drawings. The electric wires include a main wire laid between power poles and an edge-around electric wire connecting between ends of both main wires. As an example, the edge-around electric wire will be described. 1 to 10 show a wire fixing device according to the first embodiment. FIG. 1 is a front view of the wire fixing device, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. FIG. 5 is a cross-sectional view taken along the line VV of FIG. 5, and FIG. 5 is a cross-sectional view taken along the line WW of FIG.
[0010]
The wire fixing tool A is attached to a cover member 1 to be attached to a pin insulator P to be described later, and an electric wire D which is disposed in the cover member 1 and is integrally formed with the cover member 1 by insert molding and to be described later. a hooking member 2 to affix the electric wire D, and is composed of. The cover member 1 is made of a material having insulating properties and flame retardancy such as hard synthetic resin material such as hard polyethylene mixed with glass fiber, and has a hollow inside and an open bottom surface. More specifically, it has a large-diameter collar 3a and a small-diameter collar 3b that is integrally provided and communicated with the upper surface of the large-diameter collar 3a, and the first umbrella portion p1 at the upper end of the pin insulator P is fitted into the small-diameter collar 3b. Further, the size is selected so that the next second umbrella portion p2 can be fitted into the large-diameter collar portion 3a.
[0011]
On both sides of the large and small diameter flange portions 3a and 3b, shaft cylinders are located at one end side of the large and small diameter flange portions 3a and 3b and are located approximately in the middle of the large and small diameter flange portions 3a and 3b. The portions 4 are integrally projected. The shaft tube portion 4 is inserted with the electric wire D, and is provided with a tapered portion 6 having an opening 5 at the front end and a gradually decreasing diameter toward the front end. The tapered portion 6 is provided with a plurality of annular thin portions 7 that are separated from each other by a predetermined distance on the outer peripheral surface thereof and are perpendicular to the central axis of the tapered portion 6. This is in order to be able to cope with the electric wires D having different outer diameter dimensions, and can be easily cut along the annular thin portion 7 having the same dimensions as the outer diameter of the electric wires D to be used.
[0012]
In addition, a notch 8 parallel to the central axis of each axial tube portion 4 is provided on the lower side of each axial tube portion 4 over the large diameter flange portion 3a, and both axial cylinder portions 4 including the large diameter flange portion 3a are provided. Can be freely opened and closed by a cut 8. As a result, the wire D can be attached. On both sides of the notch 8 of each shaft cylinder part 4, connecting pieces 9 are integrally extended along the notch 8. These opposing connecting pieces 9 are provided with engaging pieces 10 and engaging holes 11 that are detachably engaged with each other, and corresponding positions. The engaging piece 10 and the engaging hole 11 can be engaged with each other by firmly holding the connecting pieces 9 facing each other. A pair of sandwiching pieces 12 projecting substantially at right angles to the shaft tube portion 4 is provided at a position opposed to the center of the outer peripheral surface of the large diameter flange portion 3a. This is to allow the wire fixing tool A to be clamped by the tip clamping part 16 of the insulating Y-coil Y when it is attached to the pin insulator P by remote control using, for example, the insulating Y-co Y described later. It is.
[0013]
The hooking member 2 is formed from a metal wire having elasticity, or a resin material having sufficient hardness such as FRP, and has a planar U shape as shown in FIG. 2, and extends from the base end portion 13a side. A hook-shaped wire hooking portion 14 that hooks the electric wire D is provided at the tip of the armband portion 13b. And the latching member 2 is arrange | positioned in the small diameter collar part 3b so that the electric wire latching part 14 may be located in the axial cylinder part 4, and the base end part 13a is formed in the internal peripheral surface of the small diameter collar part 3b. The bulging portion 15 is integrally fixed by insert molding. The length dimension of the arm hook portion 13b and the shape of the wire hooking portion 14 are such that when the notch 8 is opened and the electric wire fixing device A is attached to the pin insulator P together with the electric wire D, the electric wire hooking portion 14 is attached to the electric wire D. After the wire can be hooked and is attached, the wire hooking portion 14 is set so that the wire D is not loosened and loosened.
[0014]
The wire fixing tool A according to the first embodiment has the above-described configuration, and the mounting method will be described with reference to FIGS. In the figure, DC is a utility pole, U is a brace that is placed over the top of the utility pole DC, and a pin insulator P is erected on the upper surface. In addition, tension insulators T are extended from the arm metal U in opposite directions, and the ends of the main line H as the electric wires D are connected to a tension clamp (not shown) connected to the tension insulators T, respectively. is doing. The tension clamp is usually covered with a tension clamp cover K. Further, in order to electrically connect the main lines H on both sides of the utility pole DC, an edge-around electric wire F, which is an electric wire D, is connected between the ends of both main lines H. The peripheral wire F is disposed on one side of the pin insulator P and along the annular recess O between the upper first umbrella portion p1 and the second umbrella portion p2. The main line H is a high-voltage electric wire, and the mounting operation is performed in a live line state. An operator gets into a freely elevating bucket (not shown) mounted on the work vehicle, and uses a tool called an insulating Yatco Y.
[0015]
Then, the worker raises the bucket, and with the notch 8 opened, the opposite clamping piece 12 is clamped by the tip clamping portion 16 of the insulating Y-cog Y to lift the wire fixture A as shown in FIG. Next, as shown in FIG. 7, a wire F around the edge is interposed between the notches 8, and the wire F around the edge is inserted into both the shaft tube portions 4 and the wire holding portions 14 at the tips of the hooking members 2 are connected to the edges. Hang around the electric wire F. Further, the large and small diameter flange portions 3a and 3b are put on the pin insulator P. Finally, the connecting pieces 9 facing each other are clamped by the tip clamping portion 16 of the insulating Y-cots Y, and the engaging pieces 10 are engaged with the engaging holes 11.
[0016]
As a result, as shown in FIG. 8 to FIG. 10, the peripheral wire F is fixed to the pin insulator P, and the first umbrella portion p1 and the second umbrella portion p2 at the upper end are placed in the small diameter flange portion 3b and the large diameter flange portion 3a. The cover member 1 is attached to the pin insulator P in a state of being fitted respectively. Thus, the cover member 1 can be hooked to the electric wire D at the same time that the cover member 1 is attached to the pin insulator P, and the cover member 1 can be easily attached. At the same time, the electric wire D is firmly fixed to the pin insulator P by the latching member 2 and can sufficiently withstand long-term use. Furthermore, since the cover member 1 is formed of an insulating and flame retardant material such as a synthetic resin material such as polyethylene, the cover member 1 is not short-circuited even when a metal wire such as a wire comes into contact with it, and is strong. Resistant to damage and less likely to break, as well as excellent weather resistance.
[0017]
FIGS. 11 to 17 show an electric wire fixture A2 according to the second embodiment. The electric wire fixture A2 has a linear shape in which an edge wire F is provided on the upper surface of the upper first umbrella portion p1. It is made to adhere to the pin insulator P arrange | positioned along the hollow O1. Note that the same parts as those in the present embodiment are given the same reference numerals, and detailed description thereof is omitted.
[0018]
The wire fixing tool A2 is disposed in the cover member 1 to be attached to the pin insulator P, and is integrally formed with the cover member 1 by insert molding, and is hooked on the wire D to be attached to the wire a hooking member 2 to affix the D, and is composed of. Similarly to the above, the cover member 1 is mixed with glass fiber, is formed of a material having insulating properties and flame retardancy such as a hard synthetic resin material such as hard polyethylene, the inside is hollow, and the lower surface is open. . More specifically, the size is selected so that the first umbrella portion p1 at the upper end of the pin insulator P can be fitted into the bowl-shaped main body portion 3.
[0019]
On both sides of the bowl-shaped main body 3, shaft cylinders 4 that communicate with the inside at the center position and linearly extend in opposite directions are integrally projected. The shaft tube portion 4 is provided with a tapered portion 6 having an opening 5 at the tip and a gradually decreasing diameter toward the tip. In addition, the tapered portion 6 is provided with a plurality of annular thin portions 7 that are separated from each other by a predetermined distance on the outer peripheral surface thereof and are perpendicular to the central axis of the tapered portion 6 as described above.
[0020]
In addition, a notch 8 is provided on the lower side of each shaft tube portion 4 so as to extend in parallel with the central axis of each shaft tube portion 4 across the flange-shaped body portion 3. 4 can be freely opened and closed by a notch 8. On both sides of the notch 8 of each shaft cylinder portion 4, connecting pieces 9 are integrally extended along the notch 8. These opposing connecting pieces 9 are provided with engaging pieces 10 and engaging holes 11 that are detachably engaged with each other, and corresponding positions. The engaging piece 10 and the engaging hole 11 can be engaged with each other by firmly holding the connecting pieces 9 facing each other. A pair of sandwiching pieces 12 projecting from the center of the outer peripheral surface of the bowl-shaped main body 3 are formed so as to be substantially perpendicular to the shaft cylinder portion 4.
[0021]
The hooking member 2 is also formed from an elastic metal wire or a resin material having sufficient hardness, such as FRP, and has a substantially U-shape as shown in FIG. 12, and extends from the base end portion 13a side. A hook-shaped wire hooking portion 14 that hooks the electric wire D is provided at the tip of the armband portion 13b. And the latching member 2 was arrange | positioned in the hook-shaped main-body part 3 so that the electric wire latching part 14 might be located in the center side, and the base end part 13a was formed in the internal peripheral surface of the hook-shaped main-body part 3. The bulging portion 15 is integrally fixed by insert molding. The length of the arm flange 13b and the shape of the wire latching portion 14 are such that when the notch 8 is opened and the wire clamp A is attached to the pin insulator P together with the wire D, the wire latching portion 14 is attached to the wire D. After the wire can be hooked and is attached, the wire hooking portion 14 is loosened so that the electric wire D does not rattle.
[0022]
The electric wire fixture A2 according to the second embodiment has the above-described configuration, and in the same manner as in the case of the electric wire fixture A according to the first embodiment, the insulating Y-shaped Y is used and the opposite side is opened with the notch 8 opened. The clamping piece 12 is clamped by the tip clamping part 16 of the insulating Yachto Y, and the electric wire fixture A2 is lifted. Next, the wire F around the edge is interposed between the notches 8, and the wire F around the edge is put in both the shaft cylinders 4 and the both wire hooking portions 14 at the tip of the hooking member 2 are hooked on the electric wire D. The main body 3 is placed on the pin insulator P. Finally, the connecting pieces 9 facing each other are clamped by the tip clamping portion 16 of the insulating Y-cots Y, and the engaging pieces 10 are engaged with the engaging holes 11.
[0023]
Accordingly, as shown in FIGS. 16 and 17, the electric wire D is fixed to the pin insulator P, and the cover member 1 is connected to the pin insulator P in a state where the upper first umbrella portion p <b> 1 is fitted in the hook-shaped main body portion 3. To be attached. Thus, the cover member 1 can be attached at the same time as the cover member 1 is attached, and the cover member 1 can be easily attached. At the same time, the electric wire D is firmly fixed to the pin insulator P by the latching member 2 and can sufficiently withstand long-term use. Furthermore, since the cover member 1 is formed of an insulating and flame retardant material such as a synthetic resin material such as polyethylene, the cover member 1 is not short-circuited even when a metal wire such as a wire comes into contact with it, and is strong. Resistant to damage and less likely to break, as well as excellent weather resistance.
[0024]
FIGS. 18 to 23 show an electric wire fixture A3 according to the third embodiment. Similar to the first embodiment, the peripheral wire F is on one side of the pin insulator P and the first umbrella at the upper end. It is used when it is arranged along the annular recess O between the part p1 and the second umbrella part p2. This electric wire fixture A3 is formed of a material having insulating properties and flame retardancy such as hard synthetic resin material such as hard polyethylene mixed with glass fiber in the same manner as described above.
[0025]
And the said electric wire fixing tool A3 has the substantially rectangular flat plate-shaped main-body part 17 which covers the upper surface of the pin insulator P, and the said edge periphery electric wire F which follows the one side of the said pin insulator P at the end of this main-body part 17 is provided. An electric wire hooking portion 18 for hooking is provided. As shown in FIGS. 19 and 20, the wire hooking portion 18 extends integrally from the one end of the main body portion 17 downward in a semicircular cross-section, and projects outward from both sides of the main body portion 17. Yes. On the other hand, at the other end of the main body part 17, there is a holding plate part 19 that is bent in the same direction as the electric wire hooking part 18 and is slightly inclined with respect to the electric wire hooking part 18 on a plane parallel to the upper surface of the main body part 17. It is provided integrally. Further, the holding plate portion 19 has a screw hole 20 penetrating substantially at the center thereof. The screw hole 20 is opened so that the inside faces upward.
[0026]
A fastening member 21 that moves forward and backward along the screw hole 20 is screwed into the screw hole 20. The fastening member 21 is for pressing and fixing the peripheral wire F to the pin insulator P. The fastening member 21 has a screw shaft 21 a that is screwed into the screw hole 20. A presser claw member 23 having a recessed portion 22 is provided at an end portion of the screw shaft 21a located on the inner side. The presser claw member 23 can freely rotate with respect to the screw shaft 21a. An adapter 24 that is operated by an insulating operation rod S is integrally provided at an end portion of the screw shaft 21a located outside the holding plate portion 19. The adapter 24 is formed of a hollow cylindrical body 24a whose rear end face is opened, and is provided with a pair of T-shaped engagement grooves 25 that are opposed to the peripheral surface of the cylindrical body 24a and open on the rear end edge side. Yes.
[0027]
The electric wire fixture A3 according to the third embodiment has the above-described configuration, and the pair of engagement pins 26 at the tip of the operation rod S are inserted into both T-type engagement grooves 25 of the adapter 24 to lift the electric wire fixture A3. And this electric wire fixing tool A3 is adhered to the pin insulator P. FIG. At this time, the main body portion 17 is positioned on the upper surface of the first umbrella portion p <b> 1 and the wire hooking portion 18 is hooked on the peripheral edge electric wire F. In this state, the operating rod S is rotated to advance the screw shaft 21a to the inside of the holding plate portion 19, and the recessed portion 22 at the tip is connected to the first umbrella portion p1 and the second umbrella portion p2 of the pin lever P. It is interposed between the annular recesses O and presses against its outer peripheral surface. By continuing this operation, the wire latching portion 18 moves to the pin insulator P side, and as shown in FIGS. 22 and 23, the wire F around the edge is drawn toward the pin insulator P side and the wire latching portion 18 is moved. And tightened. When the work is finished, the tip of the operation rod S is removed from the adapter 24 and removed.
[0028]
Such an electric wire fixing tool A3 can be attached to the pin insulator P only by rotating the operation rod S, and the operation becomes extremely simple. In addition, the peripheral wire F is firmly fixed to the pin insulator P so that it can sufficiently withstand long-term use. Moreover, since the main-body part 17 is shape | molded by the material which has insulation and a flame retardance, such as synthetic resin materials, such as polyethylene as demonstrated previously, even if metal wires, such as a wire, contact, it short-circuits. In addition, it is strong in strength, has a low risk of breakage, and has excellent weather resistance.
[0029]
In addition, the latch member for fixing the said electric wire is not restricted to the structure demonstrated by 1st, 2nd embodiment.
[0030]
【The invention's effect】
As described above, the wire fixing device according to the present invention is an insulating cover member that is hollow for being attached to the pin insulator and whose bottom surface is opened, and is disposed within the cover member and is latched on the wire. Since it is composed of a latching member for fixing the electric wire, and only by attaching a cover member to the pin insulator, it is possible to fasten and fix the electric wire installed on the upper part of the electric pole to the pin insulator, The work of fixing the electric wire is simplified and the work efficiency is improved. Further, even if a metal wire such as a wire comes into contact with the cover member as a nesting material, there is no short circuit, and a distribution line accident is prevented. Furthermore, since the latch member for latching the electric wire and fixing the electric wire is arranged in the cover member, the electric wire is firmly fixed to the pin insulator and can sufficiently withstand long-term use. .
[0031]
In addition, an insulating main body that covers the upper surface of the pin insulator, an electric wire hooking portion that is provided on one end side of the main body portion and hooks an electric wire along one side of the pin insulator, and the other end side of the main body portion And a fastening member for advancing and pushing the presser claw member at the front end against the outer peripheral surface of the pin insulator and pulling the electric wire toward the pin insulator side by the wire latching portion and fixing the wire In that case, since the wire can be fixed to the pin insulator simply by attaching the tip of the operation rod to the adapter and inserting the tip of the operation rod into the adapter and rotating the operation rod, the operation becomes extremely simple and the work efficiency is further improved. effective.
[Brief description of the drawings]
FIG. 1 is a front view of an electric wire fixture according to a first embodiment.
FIG. 2 is a plan view of the wire fixture according to the first embodiment.
FIG. 3 is a side view of the wire fixing tool according to the first embodiment.
4 is a cross-sectional view taken along line VV in FIG.
5 is a cross-sectional view taken along line WW in FIG.
FIG. 6 is a view showing the state of use before the wire fixing device according to the first embodiment is attached to the pin insulator.
FIG. 7 is a side cross-sectional view showing a state in which the electric wire fixture according to the first embodiment is attached.
FIG. 8 is a view showing the state of use after the wire fixture according to the first embodiment is attached to the pin insulator.
FIG. 9 is a front cross-sectional view after being attached to the pin insulator of the wire fixture according to the first embodiment.
FIG. 10 is a side cross-sectional view after being attached to the pin insulator of the wire fixing device according to the first embodiment.
FIG. 11 is a front view of an electric wire fixture according to a second embodiment.
FIG. 12 is a plan view of an electric wire fixture according to a second embodiment.
FIG. 13 is a side view of an electric wire fixture according to a second embodiment.
14 is a sectional view taken along line XX in FIG.
15 is a cross-sectional view taken along line YY in FIG.
FIG. 16 is a front cross-sectional view after being attached to the pin insulator of the wire fixture according to the second embodiment.
FIG. 17 is a side cross-sectional view after being attached to the pin insulator of the electric wire fixture according to the second embodiment.
FIG. 18 is a front view of an electric wire fixture according to a third embodiment.
FIG. 19 is a plan view of an electric wire fixture according to a third embodiment.
FIG. 20 is a side view of an electric wire fixture according to a third embodiment.
21 is a sectional view taken along line ZZ in FIG.
FIG. 22 is a plan view after being attached to the pin insulator of the electric wire fixture according to the third embodiment.
FIG. 23 is a side view of the electric wire fixing tool according to the third embodiment after being attached to the pin insulator.
[Explanation of symbols]
1 Cover member 2 Hanging member
4 Shaft tube portion 13a Base end portion 13b Arm flange portion 14 Electric wire latching portion 17 Main body portion 18 Electric wire latching portion 21 Fastening member 23 Pressing claw member A, A2, A3 Electric wire fixing tool D Electric wire DC Electric pole P Pin insulator

Claims

An electric wire fixing tool for fixing an electric wire installed on the upper part of a power pole so as to be along the pin insulator to the pin insulator, and is an insulating material that is hollow and is open on the lower surface to be attached to the pin insulator. A cover member, and a hook member disposed in the cover member and hooked to the electric wire to fix the electric wire, and the base end portion of the hook member is the cover member An electric wire fixing tool characterized in that an electric wire hooking portion for fixing the electric wire to the pin insulator is provided at the distal end portion and fixed to the inner peripheral surface of the electric wire.

The hooking member is made of a metal wire having elasticity, and the cover member communicates with the inside at one end side thereof and extends linearly in opposite directions to each other and integrally has a shaft tube portion through which the electric wire is inserted. The electric wire fixing tool according to claim 1, wherein the electric wire fixing tool is provided so as to project .

An insulative electric wire fixture for fastening an electric wire installed on an upper portion of an electric pole so as to be along the pin insulator to the pin insulator, the main body portion covering the upper surface of the pin insulator, and one end of the main body portion A wire retaining portion that is provided on the side and is threaded to the other end side of the main body portion and is advanced to press the presser claw member at the tip against the outer peripheral surface of the pin insulator. wire fixture, characterized in that it consists of a Shimetome member for fixing attract to the pin insulators side by the wire retaining portion.