JP5182937B2 - Electric wire protective tube terminal fixture - Google Patents

Description

本発明は、電柱と電柱の間や電柱と建物との間といった空間に架設される電線に被着して該電線を保護する電線保護管の端末固定具に関するものである。   The present invention relates to a terminal fixture for an electric wire protection tube that is attached to an electric wire installed in a space such as between an electric pole and between an electric pole and a building to protect the electric wire.

従来、電柱と電柱との間の空間に架設される電線が樹木に掛かる場合、風が吹いて該樹木の枝が電線に頻繁に接触し、該電線の被複層の表面を擦って剥がし、最終的には芯線が露出して電線がショートする恐れがある。そこで、このような危険性のある箇所には、所定長さの電線保護管を適宜継ぎ足すなどして電線に被着するようにしている。該電線保護管は電線に沿ってズレては困るので、一般にその管端を電線に固定している。その手段として、例えば本出願人が出願した特許文献１に示される端末固定具がある。   Conventionally, when an electric wire installed in the space between the utility poles is applied to the tree, the wind blows frequently so that the branches of the tree frequently come into contact with the wires, and the surface of the multilayer of the wires is rubbed and peeled off. Eventually, the core wire may be exposed and the electric wire may be short-circuited. In view of this, a wire protection tube having a predetermined length is appropriately added to a place with such a danger so as to be attached to the wire. Since the electric wire protection tube is difficult to be displaced along the electric wire, the tube end is generally fixed to the electric wire. For example, there is a terminal fixture shown in Patent Document 1 filed by the present applicant.

前記端末固定具は、鉛直な主幹の上下両端に水平腕部をそれぞれ突設させて側面コ形状の本体部材を形成し、下の水平腕部に上下動自在なねじ棒を螺合し、上の水平腕部に電線保護管の外表面に掛止させる掛止腕片を突設して構成される。そして、該端末固定具を電線保護管の端に配置し、掛止腕片を電線保護管の端部の外周面に周設された鍔部に掛け止し、この状態でねじ棒を締め付けてその上端と上の水平腕部との間で電線を挟むようにして電線保護管を電線にズレないように固定している。鍔部は同じ電線保護管を連結するためのものである。   The terminal fixture is formed by projecting horizontal arm portions at the upper and lower ends of a vertical main trunk to form side-shaped body members, and screwing a vertically movable screw rod into the lower horizontal arm portion. The horizontal arm portion is configured to project a latching arm piece to be latched on the outer surface of the wire protection tube. And this terminal fixing tool is arrange | positioned at the end of an electric wire protection tube, and a latching arm piece is hooked on the collar provided around the outer peripheral surface of the end of an electric wire protection tube, and a screw rod is tightened in this state The electric wire protection tube is fixed so as not to be displaced from the electric wire so that the electric wire is sandwiched between the upper end and the upper horizontal arm portion. The collar is for connecting the same wire protection tube.

特開平５−２５２６２７号公報（第２−３頁、図１、図２）JP-A-5-252627 (page 2-3, FIGS. 1 and 2)

しかしながら、前記特許文献１に示した端末固定具は、端部の外周面に鍔部を周設した電線保護管でなければ固定することができず、低圧用の電線保護管のような鍔部のない電線保護管については使用できないという課題が有った。   However, the terminal fixture shown in Patent Document 1 cannot be fixed unless it is a wire protection tube having a flange portion provided around the outer peripheral surface of the end portion, and the flange portion such as a low-voltage wire protection tube. There was a problem that it was not possible to use the wire protection tube without the wire.

そこで、本発明は上記課題に鑑みてなされてもので、端部の外周面に連結用の鍔部が有っても無くても関係なく使用できる電線保護管の端末固定具を提供することを目的とするものである。   Accordingly, the present invention has been made in view of the above problems, and therefore, it is intended to provide a terminal protector for a wire protection tube that can be used regardless of whether or not there is a connecting collar on the outer peripheral surface of the end. It is the purpose.

かかる目的を達成するために本発明に係る電線保護管の端末固定具は、長手方向の両端面が開放すると共に下端縁が長手方向に沿って分割され、その分割部を挟んだ両側から一対の突出片が下方へ延設され、前記分割部から電線を挿通して該電線に被着するようにした電線保護管を移動不能に固定する電線保護管の端末固定具であって、前記電線保護管の端面からその管内に挿入される支持杆と、前記重なった両突出片をその外側から挟着する一対の挟持片と、前記電線に着脱不能に固定するためのインシュロック機構と、を備えてなることを特徴とする。   In order to achieve such an object, the terminal fixture of the electric wire protection tube according to the present invention has a pair of ends from both sides sandwiching the divided portion, with both end surfaces in the longitudinal direction being opened and a lower end edge being divided along the longitudinal direction. An end fixture for a wire protection tube, in which a protruding piece extends downward, and an electric wire protection tube which is inserted into and attached to the electric wire from the divided portion is fixed to be immovable. A support rod inserted into the tube from the end surface of the tube, a pair of clamping pieces for clamping the overlapping protruding pieces from the outside, and an insulation lock mechanism for detachably fixing to the electric wire. It is characterized by becoming.

前記支持杆は１本でも良いが、２本又は３本といった複数本であっても良い。また、電線保護管の両突出片を挟む一対の挟持片にあっては、その互いに対向する面に滑り止め手段を設けることが好ましい。   The support rod may be one, but may be a plurality of two or three. Further, in the pair of holding pieces that sandwich both protruding pieces of the electric wire protection tube, it is preferable to provide anti-slip means on the surfaces facing each other.

本発明に係る電線保護管の端末固定具は、長手方向の両端面が開放すると共に下端縁が長手方向に沿って分割され、その分割部を挟んだ両側から一対の突出片が下方へ延設され、分割部から電線を挿通して該電線に被着するようにした電線保護管を移動不能に固定してなり、電線保護管の端面からその管内に挿入される支持杆と、重なった両突出片をその外側から挟着する一対の挟持片と、電線に着脱不能に固定するためのインシュロック機構と、を備えてなる。よって、電線保護管の端面から管内に支持片を挿入すると共に一対の挟持片により両突出片を挟着した状態で、端末固定具を電線に固定するようになり、従来のように端部に鍔部がない電線保護管についても使用できる。しかも、電線保護管がズレることなくしかもしっかりと固定されるという効果がある。   The terminal fixture of the electric wire protection tube according to the present invention has both end surfaces in the longitudinal direction open and the lower edge is divided along the longitudinal direction, and a pair of projecting pieces extend downward from both sides sandwiching the divided portion. The wire protection tube inserted through and attached to the electric wire from the divided portion is fixed so as not to move, and the support rod inserted into the tube from the end surface of the wire protection tube is overlapped with both A pair of clamping pieces for clamping the protruding pieces from the outside thereof and an insulation lock mechanism for fixing the protruding pieces to the electric wire in a non-detachable manner are provided. Therefore, with the support piece inserted into the pipe from the end face of the electric wire protection pipe, the terminal fixture is fixed to the electric wire in a state where both protruding pieces are clamped by the pair of holding pieces, and the end piece is attached to the end as in the conventional case. It can also be used for wire protection tubes that do not have a buttock. Moreover, there is an effect that the wire protective tube is fixed firmly without being displaced.

また、特に、電線保護管を固定する場合、一対の挟持片により電線保護管の重なる両突出片を外側から挟むようにしているので、両突出片が離れその間が必要もなく開いてしまうことも防止されるという効果がある。   In particular, when fixing the wire protection tube, the two protruding pieces overlapping the wire protection tube are sandwiched from the outside by a pair of clamping pieces, so that it is possible to prevent both protruding pieces from separating and opening between them without necessity. There is an effect that.

以下、本発明に係る電線保護管の端末固定具（以下、単に「端末固定具」という。）の実施の形態を図面と共に説明する。図１は本発明に係る端末固定具の斜視図、図２は同拡大正面図、図３は同一部断面にして示す拡大平面図、図４は同拡大左側面図である。この端末固定具Ａは、合成樹脂製であって、灰色やその他の色が使用されるが、耐候性を考慮すると、これに優れるようにカーボンを含浸させて黒色に成形することが好ましい。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a terminal fixture for an electric wire protection tube according to the present invention (hereinafter simply referred to as “terminal fixture”) will be described with reference to the drawings. 1 is a perspective view of a terminal fixture according to the present invention, FIG. 2 is an enlarged front view thereof, FIG. 3 is an enlarged plan view showing the same section, and FIG. 4 is an enlarged left side view thereof. The terminal fixture A is made of a synthetic resin, and gray or other colors are used. However, in consideration of weather resistance, it is preferable to impregnate carbon to form black.

そして、端末固定具Ａは、本体部１の一側から外方へ所定の長さ（例えば３０ｍｍ）真直ぐに延設される支持杆２を有する。該支持杆２は、後記する電線保護管Ｂの管内に挿入されるもので、先端が半球状に丸くなっている。また、本体部１の前記支持杆２が延設された側と同じ側に、該支持杆２とほぼ平行をなしかつほぼ同じ長さを有する一対の挟持片３，３を有する。この挟持片３，３は、後記する電線保護管Ｂの両突出片１１ａ，１１ｂを挟着するためのものであって、前記支持杆２よりも下方へ少し間隔を離し、かつ、支持杆２を挟んでその両側に同じ間隔離して平行に配置される。   The terminal fixture A has a support rod 2 that extends straight from one side of the main body 1 to a predetermined length (for example, 30 mm). The support rod 2 is inserted into the tube of the electric wire protection tube B described later, and has a tip that is hemispherically rounded. In addition, on the same side of the main body 1 as the side on which the support rod 2 is extended, a pair of sandwiching pieces 3 and 3 that are substantially parallel to the support rod 2 and have substantially the same length are provided. The sandwiching pieces 3 and 3 are for sandwiching both projecting pieces 11a and 11b of the wire protection tube B to be described later. The sandwiching pieces 3 and 3 are spaced slightly below the support rod 2 and the support rod 2 It is arranged in parallel on the both sides with the same distance between them.

支持杆２と２本の挟持片３，３を含む面との間隔Ｌ１は電線保護管Ｂの肉厚相当分の寸法に設定され、両挟持片３，３間の間隔Ｌ２は両突出片１１ａ，１１ｂを重ねたほぼ肉厚相当分の寸法に設定される。一対の挟持片３，３は、両突出片１１ａ，１１ｂを挟着して締め付ける関係上、多少弾力性が持たせてある。また、両挟持片３，３の互いに対向する内面３ａ，３ａに、滑り止め効果を発揮させる滑り止め手段が設けられる。本実施の形態にあっては、互いに両内面３ａ，３ａから挟持片３，３の基端側へ傾斜する複数の爪片４が突設されている。これら各爪片４の先端部は、先鋭に形成されている。更に、両挟持片３，３における先端部の内側面３ｂ，３ｂは、窄まるように互いに傾斜させている。   The distance L1 between the support rod 2 and the surface including the two holding pieces 3 and 3 is set to a dimension corresponding to the thickness of the electric wire protection tube B, and the interval L2 between the both holding pieces 3 and 3 is the both protruding pieces 11a. , 11b is set to a dimension substantially equivalent to the wall thickness. The pair of sandwiching pieces 3 and 3 are somewhat elastic in view of sandwiching and tightening the protruding pieces 11a and 11b. Further, anti-slip means for exerting an anti-slip effect is provided on the inner surfaces 3a, 3a facing each other of the sandwiching pieces 3, 3. In the present embodiment, a plurality of claw pieces 4 projecting from both inner surfaces 3a, 3a toward the proximal end side of the sandwiching pieces 3, 3 are provided. The tip of each claw piece 4 is formed sharply. Furthermore, the inner side surfaces 3b and 3b of the front ends of the sandwiching pieces 3 and 3 are inclined with respect to each other so as to be narrowed.

本体部１には電線Ｄに端末固定具Ａを固定するためのインシュロック機構が設けられる。すなわち、本体部１の上部に上方へ伸びる屈曲可能なバンド５が一体に設けられる。このバンド５は支持杆２や挟持片３，３と直交する面内で自在に屈曲するようになっている。そして、その一側面に先端部を除いて長手方向と直交し、かつ、断面が鋸歯状をなす多数の噛合部を列設した噛合部列６が形成されている。また、バンド５の他側面には、その先端側に手の引っ掛かりを良くする複数の突条７がバンド５の幅方向に平行に突設される。   The body portion 1 is provided with an insulation lock mechanism for fixing the terminal fixture A to the electric wire D. That is, a bendable band 5 extending upward is integrally provided on the upper portion of the main body 1. The band 5 is freely bent in a plane orthogonal to the support rod 2 and the sandwiching pieces 3 and 3. Further, a meshing portion row 6 is formed on one side surface thereof. The meshing portion row 6 includes a large number of meshing portions arranged in a sawtooth shape perpendicular to the longitudinal direction except for the tip portion. Further, on the other side surface of the band 5, a plurality of protrusions 7 that improve hand catching are provided on the front end side of the band 5 in parallel with the width direction of the band 5.

一方、本体部１に、バンド５に対応位置させて該バンド５を挿通させる挿通孔８が貫設される。そして、その挿通孔８の一端が差し込み口８ａとなり、また、挿通孔８の他端が引き出し口８ｂとなる。前記バンド５の基端は、挿通孔８に近接させてその上部に設けられる。そして、挿通孔８の内側面であってバンド５の基端が取り付けられる部位と対向する面に、引き出し口８ｂ側へ傾きバンド５の噛合部列６と係合しバンド５の逆抜けを阻止する弾性噛合部９が突設される。   On the other hand, an insertion hole 8 through which the band 5 is inserted is provided in the main body 1 so as to correspond to the band 5. One end of the insertion hole 8 serves as an insertion port 8a, and the other end of the insertion hole 8 serves as a drawer port 8b. The base end of the band 5 is provided near the insertion hole 8 at the top thereof. Then, the inner surface of the insertion hole 8 facing the portion to which the base end of the band 5 is attached is engaged with the meshing portion row 6 of the band 5 so as to prevent the band 5 from coming back backward. The elastic meshing portion 9 is projected.

本発明に係る端末固定具Ａは上記構成からなり、次に、該端末固定具Ａを使って電線に被着した電線保護管を固定する手順を説明する。図５において、Ｂは電線Ｄに被着する電線保護管であり、合成樹脂材からなる。該電線保護管Ｂは、所定の長さを有し、長手方向の両端面１０が開放されると共に、下端縁が長手方向に沿って分割されている。そして、その分割部１４の両側から下方へかつ長手方向に沿って突出片１１ａ，１１ｂが設けられている。一方の突出片１１ａの内側面にその長手方向に沿って係合凸条１２が設けられ、他方の突出片１１ｂの内側面にはその長手方向に沿って該係合凸条１２が係合する係合凹条１３が設けられている。   The terminal fixture A according to the present invention has the above-described configuration. Next, a procedure for fixing the wire protective tube attached to the electric wire using the terminal fixture A will be described. In FIG. 5, B is an electric wire protective tube attached to the electric wire D, and is made of a synthetic resin material. The electric wire protection tube B has a predetermined length, both end faces 10 in the longitudinal direction are opened, and a lower end edge is divided along the longitudinal direction. Then, projecting pieces 11a and 11b are provided downward from both sides of the divided portion 14 and along the longitudinal direction. Engagement ridges 12 are provided along the longitudinal direction on the inner side surface of one protruding piece 11a, and the engagement ridges 12 engage with the inner side surface of the other protruding piece 11b along the longitudinal direction. An engaging recess 13 is provided.

そこで、電線Ｄに被着された電線保護管Ｂを該電線Ｄに固定するには、図５乃至図６に示すように該電線保護管Ｂの一端に本発明の端末固定具Ａを配置し、その管内に支持杆２を挿入すると共に両挟持片３，３間に電線保護管Ｂの突出片１１ａ，１１ｂを入れる。この際、両係合凸条１２と係合凹条１３とは共に係合させてあり、両突出片１１ａ，１１ｂは分割部１４が閉じるように重なっている。また、端末固定具Ａは、電線Ｄの下側に接触するように位置する。   Therefore, in order to fix the wire protection tube B attached to the wire D to the wire D, the terminal fixture A of the present invention is disposed at one end of the wire protection tube B as shown in FIGS. The support rod 2 is inserted into the tube, and the projecting pieces 11a and 11b of the wire protection tube B are inserted between the sandwiching pieces 3 and 3. At this time, both the engaging ridges 12 and the engaging ridges 13 are engaged with each other, and both protruding pieces 11a and 11b overlap so that the divided portion 14 is closed. Further, the terminal fixture A is positioned so as to contact the lower side of the electric wire D.

次に、前記状態で端末固定具Ａを更に電線保護管Ｂ内に押し込む。しっかり押し込んだ状態で、バンド５を屈曲させ電線Ｄを巻き込むようにしてその先端を挿通孔８にその差し込み口８ａから挿入し、引き出し口８ｂから引き出して締め止めする。この状態では、バンド５の一側面の噛合部が挿通孔８内の弾性噛合部９に係合して逆抜けが阻止される。   Next, the terminal fixture A is further pushed into the electric wire protection tube B in the above state. With the band 5 pushed in firmly, the band 5 is bent and the electric wire D is wound up so that the tip is inserted into the insertion hole 8 from the insertion port 8a, and is pulled out from the extraction port 8b and tightened. In this state, the meshing portion on one side of the band 5 is engaged with the elastic meshing portion 9 in the insertion hole 8 to prevent reverse slipping.

これにより、図７に示すように電線保護管Ｂの管内に支持杆２が挿通され、しかも、一対の挟持片３，３が両突出片１１ａ，１１ｂをその両側から挟着するので、丁度三角地点で電線保護管Ｂを固定することとなり、その取付状態がぐらつくことなく安定する。更に、両挟持片３，３の対向する内面に設けられた複数の爪片４の先端が突出片１１ａ，１１ｂの外面に食い込み、端末固定具Ａの必要のない管内からの引き抜き動作が防止される。この場合、一対の挟持片３，３は両突出片１１ａ，１１ｂを挟着しているので、該各挟持片３，３の必要のない開き動作を防止している。   Accordingly, as shown in FIG. 7, the support rod 2 is inserted into the tube of the wire protection tube B, and the pair of sandwiching pieces 3 and 3 sandwich the projecting pieces 11a and 11b from both sides. The wire protection tube B is fixed at the point, and the mounting state is stabilized without wobbling. Furthermore, the tips of the plurality of claw pieces 4 provided on the inner surfaces of the sandwiching pieces 3 and 3 facing each other bite into the outer surfaces of the projecting pieces 11a and 11b, thereby preventing the terminal fixture A from being pulled out from the pipe. The In this case, since the pair of sandwiching pieces 3 and 3 sandwich the projecting pieces 11a and 11b, an unnecessary opening operation of the sandwiching pieces 3 and 3 is prevented.

また、バンド５は電線Ｄと端末固定具Ａを一体に締め付け緩むことが無いので、電線保護管Ｂの電線Ｄに沿って必要もなくズレることが防止される。この場合、電線保護管Ｂの長手方向の一端のみに端末固定具Ａを固定したが、電線保護管Ｂの長手方向の両端に端末固定具Ａを固定するようにしても良い。   Moreover, since the band 5 does not tighten and loosen the electric wire D and the terminal fixture A integrally, it is prevented that the band 5 is not displaced along the electric wire D of the electric wire protection tube B. In this case, the terminal fixture A is fixed to only one end of the wire protection tube B in the longitudinal direction, but the terminal fixture A may be fixed to both ends of the wire protection tube B in the longitudinal direction.

このように、本発明は電線保護管Ｂの端面から管内に支持杆２を挿入すると共に一対の挟持片３，３で電線保護管Ｂの両突出片１１ａ，１１ｂを挟着した状態で、端末固定具Ａを電線Ｄに固定するようになるので、従来のように端部に鍔部がない電線保護管についても使用できる。   Thus, the present invention inserts the support rod 2 into the pipe from the end face of the electric wire protection tube B, and sandwiches the protruding pieces 11a and 11b of the electric wire protection tube B with the pair of holding pieces 3 and 3, Since the fixing tool A is fixed to the electric wire D, it is possible to use an electric wire protective tube that does not have a flange portion at the end as in the conventional case.

なお、本発明にあっては、支持杆２を１本のみ設けたが、これに限られるものではなく左右均等位置に２本、３本または４本というように複数本設けても良い。これは、例えば電線保護管Ｂの内径が大きい場合に有効的である。また、両挟持片３，３の対向する内面に設けた滑り止め手段としては、爪片４に限られるものではなく、同等の滑り止め効果が得られるものであれば、他の手段であっても良い。   In the present invention, only one support rod 2 is provided. However, the present invention is not limited to this, and a plurality of support rods such as two, three, or four may be provided at the left and right equal positions. This is effective, for example, when the inner diameter of the wire protection tube B is large. Further, the anti-slip means provided on the opposing inner surfaces of the sandwiching pieces 3 and 3 is not limited to the claw piece 4, and any other means can be used as long as an equivalent anti-slip effect can be obtained. Also good.

本発明に係る端末固定具の斜視図。The perspective view of the terminal fixture which concerns on this invention. 同拡大正面図。The enlarged front view. 同一部断面にして示す拡大平面図。The enlarged plan view shown on the same part cross section. 同拡大右側面図。The enlarged right side view. 同取付手順を示す斜視図。The perspective view which shows the attachment procedure. 図５のＸ−Ｘ線矢視図。FIG. 6 is a view taken along line XX in FIG. 5. 端末固定具が取り付いた状態の斜視図。The perspective view in the state where the terminal fixture was attached.

符号の説明Explanation of symbols

２ 支持杆
３ 挟持片
５ バンド
６ 噛合部列
８ 挿通孔
９ 弾性噛合部
１１ａ 突出片
１１ｂ 突出片
Ａ 端末固定具
Ｂ 電線保護管
Ｄ 電線 2 Support rod 3 Clamping piece 5 Band 6 Engagement row 8 Insertion hole 9 Elastic engagement portion 11a Protruding piece 11b Protruding piece A Terminal fixing tool B Electric wire protection tube D Electric wire

Claims (1)

長手方向の両端面が開放すると共に下端縁が長手方向に沿って分割され、その分割部を挟んだ両側から一対の突出片が下方へ延設され、前記分割部から電線を挿通して該電線に被着するようにした電線保護管を移動不能に固定する電線保護管の端末固定具であって、
前記電線保護管の端面からその管内に挿入される支持杆と、前記重なった両突出片をその外側から挟着する一対の挟持片と、前記電線に着脱不能に固定するためのインシュロック機構と、を備えてなることを特徴とする電線保護管の端末固定具。 Both end faces in the longitudinal direction are opened and the lower edge is divided along the longitudinal direction, and a pair of projecting pieces extend downward from both sides sandwiching the divided part, and the electric wire is inserted through the divided part. A wire protection tube terminal fixture for immobilizing the wire protection tube attached to the
A support rod inserted into the pipe from the end face of the electric wire protection pipe, a pair of clamping pieces for clamping the overlapping protruding pieces from the outside, and an insulation lock mechanism for detachably fixing to the electric wire; A terminal fixture for an electric wire protection tube, comprising:

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