JPS591380Y2 - Tight line spacer - Google Patents

Description

【考案の詳細な説明】 本考案は耐雪用ラインスペーサに関する。[Detailed explanation of the idea] The present invention relates to a line spacer for snow protection.

従来ラインスペーサは、風、車輌の衝突、スリードジャ
ンプ時の電線震動による異相間短絡事故防止を目的とし
て使用されて来た。Conventionally, line spacers have been used to prevent short-circuit accidents between different phases caused by wind, vehicle collisions, and wire vibrations during three-lead jumps.

また、これらのラインスペーサは、使用場所および電線
の種類によって電線把持部の金具構造を固定あるいは自
在式と使用区分されている。In addition, these line spacers are classified into fixed and flexible metal structure of the wire gripping portion depending on the place of use and the type of wire.

しかし、最近市街地の絶縁電線化あるいは多雪地域には
難着雪絶縁電線と称し、電線の絶縁体表面にひれを設け
た特殊電線を用いているが、多雪地域においては径間が
３０ｍ以上となると難着電線が風雪により捩れて着雪現
象が多発し、送電に支障を来す事故が起きている。However, in recent years, insulated wires have been introduced in urban areas, and special wires with fins on the surface of the insulator, called snow-resistant insulated wires, are being used in areas with heavy snowfall, but in areas with heavy snowfall, the span is 30 m or more. This has led to frequent occurrences of snow accretion as the hard-to-reach power lines become twisted due to wind and snow, resulting in accidents that disrupt power transmission.

また、ラインスペーサの絶縁杆折損防止用である自在式
のラインスペーサは上下左右に自由に回動する構造であ
るので電線の捩れ現象を助長するので具合が悪い。Furthermore, the flexible line spacer, which is used to prevent breakage of the insulating rod of the line spacer, has a structure that allows it to freely rotate vertically and horizontally, which is inconvenient because it promotes twisting of the electric wires.

本考案は、上記の欠点を改良したもので、比較的抗折力
のかからない電線の上下方向への自在性を阻止し、絶縁
杆および金具に電線の震動による抗折力が強くか・る左
右動すなわち電線の長さ方向へ自在性を持たせるべくし
たもので、従来のラインスペーサの自在性の効果を失う
ことなく雪の付着を防止できる耐雪用のラインスペーサ
に関する。The present invention improves the above-mentioned drawbacks, and prevents the vertical movement of the electric wire, which is relatively free of transverse rupture force, and prevents the vertical flexure of the electric wire, which is relatively free from transverse rupture force, and prevents the horizontal flexure of the insulating rod and metal fittings, which are subject to strong transverse rupture force due to the vibration of the electric wire. This invention relates to a line spacer for snow protection, which is designed to provide flexibility in the longitudinal direction of electric wires, and can prevent snow from adhering to it without losing the flexibility of conventional line spacers.

以下図面に基づいて具体的に説明すると次の通りである
。A detailed description will be given below based on the drawings.

第１図は、従来の自在式ラインスペーサを示し、電線挟
着金具１と絶縁杆２に固着した金具３を軸ピン４，５で
リング６にて連結し、前記金具１と金具３間を圧縮バネ
７を弾発状に嵌装した構造であるので、このラインスペ
ーサは上下左右自在に動くので、積雪の多い地域では特
に上下震動が激しいと電線が捩れたり回動しやすく、多
雪地域においては雪が電線に付着しやすい欠点がある。FIG. 1 shows a conventional flexible line spacer, in which a wire clamping fitting 1 and a fitting 3 fixed to an insulating rod 2 are connected by a ring 6 using shaft pins 4 and 5, and the fitting 1 and fitting 3 are connected by a ring 6. Since the line spacer has a structure in which the compression spring 7 is fitted in an elastic shape, the line spacer can freely move vertically and horizontally. Therefore, in areas with heavy snowfall, the electric wires are likely to twist or rotate when vertical vibrations are particularly severe. However, there is a disadvantage that snow tends to adhere to the electric wires.

第２図は、本考案のラインスペーサの構造を示すもので
、強化ガラス等よりなる絶縁杆１の端部に固着した自在
継手金具２の先端に突体３を一体に形成する。FIG. 2 shows the structure of the line spacer of the present invention, in which a protrusion 3 is integrally formed at the tip of a universal joint fitting 2 fixed to the end of an insulating rod 1 made of tempered glass or the like.

一方、一端を開口として内部側方に凹部４を有する受部
５と他端部に電線挾持片６とを一体に形成した電線挟着
金具７の前記受部５の一部に前記自在継手金具２の突体
３を凹部４に挿入してピン８にて軸着する。On the other hand, a part of the receiving part 5 of the electric wire clamping fitting 7 is integrally formed with a receiving part 5 having an opening at one end and a recessed part 4 on the inner side, and a wire clamping piece 6 at the other end. The second protruding body 3 is inserted into the recess 4 and is pivoted with a pin 8.

また、受部５の後端に設けた係止部９と自在継手金具２
間を圧縮バネ１０にて弾発状に嵌着する。In addition, a locking portion 9 provided at the rear end of the receiving portion 5 and a universal joint fitting 2 are provided.
A compression spring 10 is used to elastically fit the space between the two.

符号１１はワニロ金具で上端を電線挟着金其上端に軸着
１２シ、下方よりフックボルト１３にてワニ口金具を押
し上げて電線１３を挟持する。Reference numeral 11 is an alligator metal fitting whose upper end is pivoted to the upper end of the wire clamping metal fitting 12, and the electric wire 13 is held by pushing up the alligator metal fitting from below with a hook bolt 13.

本考案は、以上詳述したように、絶縁杆側に固着した金
具と電線挟着側の金具とを軸ピンで軸着しているので、
軸ピンを支点として電線の長さ方向に自在性を有し、抗
折力を緩衝しうるのでスペーサを折損する心配はなく、
電線の上下震動に対しては電線を挟圧するようになって
いるので、電線の捩れや回動かなくなり電線へ雪が付着
しにく・なる。As detailed above, in the present invention, the metal fitting fixed to the insulating rod side and the metal fitting on the wire clamping side are pivotally attached with a shaft pin.
It has flexibility in the length direction of the wire using the shaft pin as a fulcrum, and can buffer transverse rupture forces, so there is no need to worry about breaking the spacer.
Since the wires are clamped against vertical vibrations of the wires, the wires do not twist or rotate, making it difficult for snow to adhere to the wires.

すなわち、少量の雪が電線に付着すると水滴状になり電
線表面のとけている部分で下面にたまりそれが繰り返さ
れて雪だるま式に付着し、やがて電線全体を覆うように
なるので、電線が回動したり、捩れたりすると前記同様
の現象が起る。In other words, when a small amount of snow adheres to an electric wire, it becomes water droplets and accumulates on the lower surface of the wire where the surface has melted, and this repeats, snowballing, and eventually covers the entire wire, causing the wire to rotate. When the wire is bent or twisted, the same phenomenon as described above occurs.

従って、電線の捩れ等を防止すれば雪の付着が防止しう
る。Therefore, if the twisting of the electric wires is prevented, snow adhesion can be prevented.

また、実験の結果から、ラインスペーサの取付けである
付近は程んど雪が付着しないので、３０ｍ程度の間隔を
もって支持されており、しかも電線の回動を阻止すれば
電線への雪の付着に起因する種々の問題を解決でき、ラ
インスペーサの折損防止の効果を失うことのない本案は
産業上大いに利用しうる考案である。In addition, from the results of the experiment, snow does not adhere to the area where the line spacer is installed, so it is supported at intervals of about 30 m, and if the rotation of the electric wire is prevented, snow will not adhere to the electric wire. The present invention, which can solve the various problems encountered and which does not lose the effect of preventing breakage of the line spacer, is a device that can be widely used in industry.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のラインスペーサの一部を示す断面図、第
２図は本考案に係るラインスペーサの一部を示す断面図
である。 １・・・・・・絶縁杆、２・・・・・・自在継手金具、
７・・・・・・電線挟着金具、８・・・・・・軸ピン、
１０・・・・・・圧縮バネ。FIG. 1 is a sectional view showing a part of a conventional line spacer, and FIG. 2 is a sectional view showing a part of a line spacer according to the present invention. 1...Insulating rod, 2...Universal joint fitting,
7...Wire clamping fitting, 8...Shaft pin,
10... Compression spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 絶縁杆１の両端に固着した自在継手金具２と電線挟着金
具７の受部５を、電線に対して直交する方向に軸ピン８
にて軸着すると共に、上記′自在継手金具７の受部５間
に圧縮バネ１０を弾発状に嵌着し、電線の長さ方向にの
み自在性を有するようにした耐雪用ラインスペーサ。The universal joint fitting 2 fixed to both ends of the insulating rod 1 and the receiving part 5 of the electric wire clamping fitting 7 are inserted into the shaft pin 8 in a direction perpendicular to the electric wire.
This snow-proof line spacer has a compression spring 10 elastically fitted between the receiving portions 5 of the universal joint fitting 7 to have flexibility only in the length direction of the electric wire.