JP4310634B2

JP4310634B2 - Transmission line spacer

Info

Publication number: JP4310634B2
Application number: JP2003435054A
Authority: JP
Inventors: 雅志清水; 功木下
Original assignee: Sumiden Transmission and Distribution Systems Products Corp
Current assignee: Sumiden Transmission and Distribution Systems Products Corp
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2009-08-12
Anticipated expiration: 2023-12-26
Also published as: JP2005198358A

Description

本発明は、少なくとも導体を保持するクランプ部と、複数のクランプ部を連結する連結部材とを具え、複数の導体の間隔を保持する送電線用スペーサーに関する。 The present invention relates to a power transmission line spacer that includes at least a clamp portion that holds a conductor and a connecting member that connects the plurality of clamp portions, and holds a distance between the plurality of conductors.

多導体送電線において、複数の導体を一定間隔に保持する目的で使用されるスペーサーは、一般に、導体を保持する開閉可能なクランプ部と、複数のクランプ部を連結する連結部材とを有している。 In a multi-conductor power transmission line, a spacer used for the purpose of holding a plurality of conductors at regular intervals generally has an openable / closable clamp part that holds the conductor and a connecting member that connects the plurality of clamp parts. Yes.

そして、スペーサーとしては、特許文献１に示すようなボルトレスのスペーサーが提案されている。これは、ばねの反力を利用してクランプ部を閉じることにより導体の保持を強固にするものである。 And as a spacer, the boltless spacer as shown to patent document 1 is proposed. This is to strengthen the holding of the conductor by closing the clamp using the reaction force of the spring.

このようなボルトレスのスペーサーの一部を図８に示す。クランプ部Aは、クランプ本体Bと、このクランプ本体Bに揺動可能に支持される蓋部Cと、クランプ本体Bに配設される開閉機構部Dとを具える。そして、クランプ本体Bと蓋部Cの間で導体を挟持するようになっている。また、クランプ本体Bには、連結部材Eが軸Fを介して連結されている。 A part of such a boltless spacer is shown in FIG. The clamp part A includes a clamp body B, a lid part C supported by the clamp body B so as to be swingable, and an opening / closing mechanism part D disposed on the clamp body B. The conductor is sandwiched between the clamp body B and the lid C. Further, a connecting member E is connected to the clamp body B via an axis F.

開閉機構部Dは、付勢ばねD1と、この付勢ばねD1で付勢される開閉部材D2とを具える。 The opening / closing mechanism D includes an urging spring D1 and an opening / closing member D2 urged by the urging spring D1.

図８では、開閉部材D2を蓋部Cに対して着脱させることにより、蓋部Cをクランプ本体Bに対して開いた状態にしたり、蓋部Cが動かないように閉じた状態にしたりするようになっている。 In FIG. 8, the lid C is opened with respect to the clamp body B by detaching the opening / closing member D2 from the lid C, or the lid C is closed so that the lid C does not move. It has become.

そして、押しボルトD4の動作により、蓋部Cがクランプ本体Bへ向けて押されることにより、クランプ本体Bと蓋部Cとが強固に閉じられるようになっている。 Then, when the lid C is pushed toward the clamp main body B by the operation of the push bolt D4, the clamp main body B and the lid C are firmly closed.

特開平９−７４６５４号公報JP-A-9-74654

ところで、複数のクランプ部Aと連結部材Eは軸Fを介して連結されている。この連結は、クランプ部Aに軸Fを固定する際に、連結部材Eにこの軸Fを遊びをもたせて挿通させることにより行なっている。 Incidentally, the plurality of clamp portions A and the connecting member E are connected via the shaft F. This connection is performed by inserting the shaft F with play in the connecting member E when the shaft F is fixed to the clamp portion A.

さらに、連結部材Eが軸Fに対して軸方向に移動しないようにするため、クランプ本体Bには、連結部材Eの一方の平面部を軸Fの軸方向一方に向けて付勢するコイルばねGを配置させている。 Further, in order to prevent the connecting member E from moving in the axial direction with respect to the axis F, the clamp body B is provided with a coil spring that urges one planar portion of the connecting member E toward one axial direction of the axis F. G is placed.

ここで、送電線に振動が発生した場合、この振動がクランプ部Aに伝わる。このときクランプ部Aに伝わった振動は、スペーサーを取付けた初期のうちは前記したコイルばねBに吸収され、連結部材Eは所定の位置に維持される（図８(a)）。 Here, when vibration occurs in the transmission line, this vibration is transmitted to the clamp part A. At this time, the vibration transmitted to the clamp part A is absorbed by the coil spring B in the initial stage of attaching the spacer, and the connecting member E is maintained at a predetermined position (FIG. 8 (a)).

しかしながら、送電線の振動が繰り返し発生すると、クランプ本体Bと連結部材Eとの間で摩擦が生じてクランプ本体Bと連結部材Eが徐々に摩耗していく。特に、一般にクランプ部Aはアルミニウムやアルミニウム合金で形成され、連結部材Eは鉄で形成されているため、クランプ部Aの方が連結部材Eよりも摩耗量が多い（図８(b)）。 However, when transmission line vibration repeatedly occurs, friction is generated between the clamp body B and the connecting member E, and the clamp body B and the connecting member E are gradually worn. In particular, since the clamp part A is generally made of aluminum or an aluminum alloy and the connecting member E is made of iron, the clamp part A has more wear than the connecting member E (FIG. 8B).

さらに、連結部材Eにおける軸Fを挿通させる孔も、軸Fとの摩擦で孔が摩耗し、また、連結部材Eに枠体などの支持部材が連結される場合には、この支持部材と連結部材Eとの摩擦により支持部材が摩耗していく場合もある。 Further, the hole through which the shaft F is inserted in the connecting member E is also worn by friction with the shaft F, and when a supporting member such as a frame is connected to the connecting member E, the hole is connected to the supporting member. The support member may be worn away by friction with the member E.

このように、各部分で摩耗が進行すると、各部材の連結部分における厚みが減少し、想定される外力に対して強度不足となったり、連結部分が離脱してしまったりするおそれがある。さらに、連結部分が離脱してしまったときには、クランプ部が別のクランプ部で保持されている送電線と衝突し、送電線が損傷するおそれがある。 Thus, when wear progresses in each part, the thickness of the connection part of each member decreases, and there is a possibility that the strength is insufficient with respect to an assumed external force or the connection part is detached. Furthermore, when the connecting portion is detached, the clamp portion may collide with a power transmission line held by another clamp portion, and the power transmission line may be damaged.

このことから、離脱に至る前に摩耗を検出して新品に取り替え、障害を回避することが非常に重要となる。しかしながら、スペーサーにおける連結部分の摩耗進行状態は目視では確認し難いため、障害発生後に発見されることが多かった。 For this reason, it is very important to detect wear before replacing and replace it with a new one to avoid a failure. However, since it is difficult to visually check the progress of wear of the connecting portion of the spacer, it is often found after the occurrence of a failure.

本発明は、上記問題に鑑み、クランプ部や連結部材などの連結部分が摩擦により摩耗が生じても、摩耗状態が容易に確認できる送電線用スペーサーを提供することを目的とする。 In view of the above problems, an object of the present invention is to provide a transmission line spacer in which a wear state can be easily confirmed even when a connection portion such as a clamp portion or a connection member is worn due to friction.

本発明の送電線用スペーサーは、導体を保持する保持部とクレビス部とを具えるクランプ部と、クランプ部と連結される連結部材とを具え、連結部材の端部がクレビス部において支持軸を介して連結され、クレビス部と連結部材の対向部の摩耗量を検知する検知手段を設けることにより上記目的を達成することができる。 The spacer for power transmission lines of the present invention comprises a clamp part having a holding part for holding a conductor and a clevis part, and a connecting member connected to the clamp part, and the end of the connecting member has a support shaft in the clevis part. The above-mentioned object can be achieved by providing a detecting means that is connected to the clevis portion and detects the wear amount of the facing portion of the connecting member.

クランプ部は、クランプ本体と蓋部とで導体を挟むようになっており、蓋部は、クランプ本体に対して開閉するようになっている。 The clamp part sandwiches a conductor between the clamp body and the lid part, and the lid part opens and closes with respect to the clamp body.

そして、このクランプ部に設けるクレビス部には、例えば、クレビス部のＵ字の間に支持軸を介して連結部材が取付けられる。この場合、連結部材のクレビス部への取付けは、連結部材の支持軸挿通用の孔をクレビス部の支持軸挿入用孔に合わせておいて、支持軸をクレビスの孔と連結部材の孔に挿通させて、支持軸をクレビス部に固定することにより行なう。 And a connecting member is attached to the clevis part provided in this clamp part via a support shaft between U characters of a clevis part, for example. In this case, the connecting member is attached to the clevis portion by aligning the support shaft insertion hole of the connecting member with the support shaft insertion hole of the clevis portion, and inserting the support shaft into the clevis hole and the connecting member hole. And fixing the support shaft to the clevis portion.

検知手段としては、クレビス部の連結部材との対向面から許容摩耗量の厚み分だけ、クレビス部の端部を支持軸の軸心に対して直交する方向に突出させた突出部により構成したものが挙げられる。 The detection means is composed of a projecting part in which the end of the clevis part is projected in a direction perpendicular to the axis of the support shaft from the surface of the clevis part facing the connecting member by the thickness of the allowable wear amount. Is mentioned.

このように突出部を設ける場合、突出部が消失した状態を摩耗限界とする。この突出部を設けることにより、突出部の有無は目視にて簡単に確認でき、容易に摩耗度合いが判別できる。 Thus, when providing a protrusion part, let the state which the protrusion part lose | disappeared be a wear limit. By providing this protrusion, the presence or absence of the protrusion can be easily confirmed visually and the degree of wear can be easily determined.

さらに、突出部の表面に着色を施すことが好ましく、このように着色を施すことによりさらに摩耗の判別がし易くなる。 Furthermore, it is preferable to color the surface of the protruding portion, and it becomes easier to determine the wear by coloring in this way.

また、検知手段は、クレビス部と連結部材との間に配設される摩耗検知板と、摩耗検知板をクレビス部に向けて支持軸の軸方向に付勢する付勢手段とを具えるようにしてもよい。この場合、摩耗検知板には支持軸が挿通される長孔が形成され、摩耗検知板は、クレビス部の摩耗により付勢手段の付勢力が低下した時に、クレビス部からずれて突出する構成としている。 Further, the detection means includes a wear detection plate disposed between the clevis portion and the connecting member, and a biasing means for biasing the wear detection plate toward the clevis portion in the axial direction of the support shaft. It may be. In this case, the wear detection plate is formed with a long hole through which the support shaft is inserted, and the wear detection plate protrudes out of the clevis portion when the urging force of the urging means decreases due to wear of the clevis portion. Yes.

具体的には、例えば、摩耗検知板における長孔の長手方向の長さおよび摩耗検知板の面積を、長手方向端部に支持軸が位置したときに摩耗検知板がクレビス部から突出し、長手方向中央部に支持軸が位置したときに摩耗検知板がクレビス部から突出しない大きさとすることが挙げられる。 Specifically, for example, the length of the long hole in the wear detection plate and the area of the wear detection plate are set such that the wear detection plate protrudes from the clevis portion when the support shaft is located at the end in the longitudinal direction. For example, when the support shaft is positioned at the center portion, the wear detection plate does not protrude from the clevis portion.

検知手段として、摩耗検知板を用い、この摩耗検知板に設ける支持軸を挿通させる孔を長孔とすることにより、クランプ部に摩耗が生じていない正常な状態では、付勢手段による付勢力で摩耗検知板がクレビス部に押しつけられ、摩耗検知板は、クレビス部で覆われた状態となる。 By using a wear detection plate as the detection means and making the hole through which the support shaft provided in this wear detection plate is a long hole, in a normal state where the clamp portion is not worn, the biasing force by the biasing means is used. The wear detection plate is pressed against the clevis portion, and the wear detection plate is covered with the clevis portion.

そして、クレビス部の摩耗の進行により、付勢手段による付勢力が弱まり、摩耗検知板をクレビス部に押えつけておくことができなくなると、摩耗検知板は、その自重あるいは振動でクレビス部から突出して露出する。この摩耗検知板の露出により目視にて簡単に摩耗の進行を確認できる。 If the urging force of the urging means weakens due to the progress of wear of the clevis portion and the wear detection plate cannot be pressed against the clevis portion, the wear detection plate protrudes from the clevis portion due to its own weight or vibration. Exposed. The progress of wear can be easily confirmed visually by the exposure of the wear detection plate.

さらに、摩耗検知板を設ける場合においても、摩耗検知板の表面に着色を施すことが好ましい。着色により、摩耗の確認をさらに良好に行なえる。 Further, even when a wear detection plate is provided, it is preferable to color the surface of the wear detection plate. The wear can be confirmed even better by coloring.

しかも、クレビス部に突出部を設けるとともに、摩耗検知板も具えるようにすれば、より確実に摩耗状態を判別でき、摩耗により障害の発生を未然に防止できる。 In addition, if the clevis portion is provided with a protrusion and also provided with a wear detection plate, the wear state can be more reliably discriminated and the occurrence of a failure due to wear can be prevented.

また、クレビス部を具えるクランプ部と、連結部材と、連結部材とクレビス部を連結する支持軸を具える送電線用スペーサーにおいて、連結部材における支持軸が挿通される孔の摩耗量を検知する検知手段を設けることもできる。この検知手段は、連結部材の表面に形成されるマーキングで構成する。 Further, in a power transmission line spacer including a clamp portion including a clevis portion, a connecting member, and a support shaft connecting the connecting member and the clevis portion, an amount of wear of a hole through which the support shaft in the connecting member is inserted is detected. Detection means can also be provided. This detection means is comprised by the marking formed on the surface of a connection member.

マーキングは、孔の摩耗量が初期摩耗量の範囲内においてはマーキングがクレビス部で覆われ、孔の摩耗量が初期摩耗量を超えると、クレビス部の外側にマーキングが現れ、摩耗限界量まで摩耗量に応じてマーキングの露出量が変化するようになっている。 The marking is covered with the clevis when the wear amount of the hole is within the range of the initial wear amount. When the wear amount of the hole exceeds the initial wear amount, the marking appears on the outside of the clevis portion, and the wear reaches the wear limit amount. The exposure amount of the marking changes according to the amount.

なお、初期摩耗量とは、スペーサーの使用開始時からの摩耗量が例えば1mmまでをいう。この初期摩耗量は、導体のサイズあるいは連結部材の形状に応じて適宜設定される。 The initial wear amount means that the wear amount from the start of use of the spacer is up to 1 mm, for example. This initial wear amount is appropriately set according to the size of the conductor or the shape of the connecting member.

マーキングは、連結部材の外周面の一部に形成してもよいし、また、外周面の全周に形成してもよい。 The marking may be formed on a part of the outer peripheral surface of the connecting member, or may be formed on the entire outer peripheral surface.

このマーキングにより、連結部材の孔が支持軸との接触で摩耗しても、マーキングの露出により目視にて簡単に前記孔の摩耗の進行を確認でき、容易に摩耗度合いが判別できる。 By this marking, even if the hole of the connecting member is worn by contact with the support shaft, the progress of the wear of the hole can be easily confirmed visually by the exposure of the marking, and the degree of wear can be easily determined.

また、クランプ部と、クランプ部と一端側が連結される連結部材と、連結部材の他端部側が連結される支持部材とを具え、連結部材が支持部材に弾性部材を介して連結されている送電線用スペーサーの場合には、連結部材に、支持部材の摩耗量または連結部材の摩耗量を検知する検知手段を設ける。このとき、検知手段は、連結部材の表面に形成されるマーキングにより構成する。 Further, the feeder includes a clamp part, a connecting member connected to the clamp part at one end side, and a support member connected to the other end part of the connecting member, and the connecting member is connected to the support member via an elastic member. In the case of the electric wire spacer, the connecting member is provided with detection means for detecting the wear amount of the support member or the wear amount of the connecting member. At this time, a detection means is comprised by the marking formed in the surface of a connection member.

マーキングは、支持部材または連結部材の摩耗量が初期摩耗量を超えたときから摩耗限界量までの摩耗量に応じて支持部材で段階的に覆われるようになっており、支持部材の外側に現れるマーキングの露出量の変化で摩耗量を検知するようにしている。
具体的には、マーキングは、支持部材または連結部材の摩耗量が初期摩耗量の範囲内にあるときには支持部材で覆われ、摩耗量が初期摩耗量を超えたときに支持部材の外側に現れるようにすることができる。あるいは、摩耗量が初期摩耗量の範囲内にあるときには支持部材の外部に現れ、摩耗量が初期摩耗量を超えたときに支持部材で覆われるようにすることができる。また、双方を同時に行なうようにすることもできる。マーキングは、連結部材の外周面の一部に形成してもよいし、また、外周面の全周に形成してもよい。 The marking is gradually covered with the support member according to the wear amount from the time when the wear amount of the support member or the connecting member exceeds the initial wear amount to the wear limit amount, and appears on the outside of the support member. The amount of wear is detected by the change in the exposure amount of the marking.
Specifically, the marking is covered with the support member when the wear amount of the support member or the connecting member is within the range of the initial wear amount, and appears on the outside of the support member when the wear amount exceeds the initial wear amount. Can be. Alternatively, it can appear outside the support member when the wear amount is within the range of the initial wear amount, and can be covered with the support member when the wear amount exceeds the initial wear amount. It is also possible to perform both at the same time. The marking may be formed on a part of the outer peripheral surface of the connecting member, or may be formed on the entire outer peripheral surface.

なお、この場合も、初期摩耗量とは、スペーサーの使用開始時からの摩耗量が例えば1mmまでをいう。この初期摩耗量は、導体のサイズあるいは連結部材の形状に応じて適宜設定される。 Also in this case, the initial wear amount means that the wear amount from the start of use of the spacer is up to, for example, 1 mm. This initial wear amount is appropriately set according to the size of the conductor or the shape of the connecting member.

この場合もマーキングにより、支持部材の摩耗または連結部材の摩耗が生じても、マーキングの露出により目視にて簡単に支持部材または連結部材の摩耗の進行を確認でき、容易に摩耗度合いが判別できる。 Even in this case, even if the wear of the support member or the connection member occurs due to the marking, the progress of the wear of the support member or the connection member can be easily confirmed visually by the exposure of the marking, and the degree of wear can be easily determined.

なお、本発明の送電線用スペーサーは、２本の送電線の間隔を保持するものや、４本以上の送電線の間隔を保持するものなどに適用できる。２本の送電線の間隔を保持する場合には、一対のクランプ部を一本の連結部材で連結する。また、４本以上の送電線の間隔を保持する場合には、導体の本数と同じ数のクランプ部と、それぞれのクランプ部に接続される連結部材と、これら連結部材が取り付けられる支持部材から構成する。
本発明の送電線用スペーサーは、特許文献１に示すようなボルトレスのスペーサーとしてもよいし、クランプ部の開閉部分をボルトで締め付けて固定するボルト式のスペーサーとしもよい。 In addition, the spacer for power transmission lines of this invention is applicable to the thing holding the space | interval of two power transmission lines, and the thing holding the space | interval of four or more power transmission lines. In the case where the interval between the two power transmission lines is maintained, the pair of clamp parts are connected by one connecting member. In addition, in the case of maintaining an interval of four or more power transmission lines, it is composed of the same number of clamp portions as the number of conductors, connecting members connected to the respective clamp portions, and a support member to which these connecting members are attached. To do.
The power transmission line spacer of the present invention may be a boltless spacer as shown in Patent Document 1, or may be a bolt-type spacer that fastens and fixes the opening / closing portion of the clamp portion with a bolt.

本発明によれば、検知手段により、クランプ本体、連結部材、支持部材などの摩耗の進行を目視により確実に確認でき、簡単に摩耗度合いが判別できる。 According to the present invention, the progress of wear of the clamp main body, the connecting member, the support member, and the like can be reliably confirmed by visual observation, and the wear degree can be easily determined.

本発明の送電線用スペーサーの実施形態について、図面に基づいて説明する。 Embodiments of a power transmission line spacer of the present invention will be described with reference to the drawings.

（第１実施形態）
本発明の送電線用スペーサーの第１の実施形態について、図１および図２に基づいて説明する。 (First embodiment)
1st Embodiment of the spacer for power transmission lines of this invention is described based on FIG. 1 and FIG.

本実施形態の送電線用スペーサーは、導体を保持する４つのクランプ部1と、これらクランプ部1を連結する棒状の連結部材2と、各連結部材が取付けられる支持部材3とを具える。 The power transmission line spacer of the present embodiment includes four clamp portions 1 that hold conductors, a rod-like connection member 2 that connects these clamp portions 1, and a support member 3 to which each connection member is attached.

クランプ部1は、クランプ本体4と、このクランプ本体4に一端側が揺動可能に連結される蓋部5と、クランプ本体4に配設される開閉機構部6とを具える。 The clamp part 1 includes a clamp body 4, a lid part 5 that is pivotally connected to the clamp body 4 at one end side, and an opening / closing mechanism part 6 disposed on the clamp body 4.

蓋部5は円弧形状をしており、円弧の一端側がクランプ本体4に枢軸11を介して揺動可能に連結されている。蓋部5を枢軸11を支点として揺動させることにより、蓋部5をクランプ本体4に対して開閉するようになっている。 The lid portion 5 has an arc shape, and one end side of the arc is connected to the clamp body 4 via a pivot 11 so as to be swingable. The lid 5 is opened and closed with respect to the clamp body 4 by swinging the lid 5 with the pivot 11 as a fulcrum.

クランプ本体4と蓋部5の間に導体を挟持するための保持部12が形成され、この保持部12において、クランプ本体4と蓋部5とで導体を挟むようになっている。 A holding part 12 for holding a conductor is formed between the clamp body 4 and the lid part 5, and the conductor is sandwiched between the clamp body 4 and the lid part 5 in the holding part 12.

また、クランプ本体4には、連結部材2が取付けられるクレビス部41が設けられている。このクレビス部41のＵ字の間に連結部材2が支持軸7を介して揺動可能に支持される。 The clamp body 4 is provided with a clevis portion 41 to which the connecting member 2 is attached. The connecting member 2 is supported between the U shape of the clevis portion 41 via the support shaft 7 so as to be swingable.

連結部材2の一端部には、支持軸7が挿通される孔21が形成され、クレビス部41にも支持軸7が挿入される孔42が形成されている。連結部材2の孔21とクレビス部41の孔42の位置を合わせておいて、支持軸7をこれら孔42と孔21に挿通させて固定する。 A hole 21 through which the support shaft 7 is inserted is formed at one end of the connecting member 2, and a hole 42 through which the support shaft 7 is inserted is also formed in the clevis portion 41. The positions of the holes 21 of the connecting member 2 and the holes 42 of the clevis portion 41 are aligned, and the support shaft 7 is inserted through these holes 42 and 21 and fixed.

また、支持軸7の一端部にはフランジ部71が形成されており、このフランジ部71に一端部が当接し、他端部が連結部材2の平面部に当接するように、支持軸7に付勢手段となるコイルばね8が挿通されている。この付勢手段8により、連結部材2が支持軸7の軸方向一方に向けて付勢され、連結部材2の支持軸7の軸方向への摺動を規制している。 In addition, a flange portion 71 is formed at one end portion of the support shaft 7, and one end portion is in contact with the flange portion 71 and the other end portion is in contact with the flat portion of the connecting member 2. A coil spring 8 serving as an urging means is inserted. By this urging means 8, the connecting member 2 is urged toward one axial direction of the support shaft 7, and the sliding of the connecting member 2 in the axial direction of the support shaft 7 is restricted.

本実施形態では、図１に示すように、４つのクランプ本体4のそれぞれに連結部材2の一端部を固定し、連結部材2の他端部を枠状の支持部材3に図示していないがコイルばねなどの弾性部材を介して固定している。 In this embodiment, as shown in FIG. 1, one end of the connecting member 2 is fixed to each of the four clamp bodies 4, and the other end of the connecting member 2 is not shown in the frame-like support member 3. It is fixed via an elastic member such as a coil spring.

そして、開閉機構部6は、クランプ本体4と蓋部5との間の保持部12に導体を配置させた状態でクランプ本体4と蓋部5を閉じ、クランプ本体4と蓋部5で導体を一定の保持力で保持できるようにするとともに、蓋部5をクランプ本体4に対して開くことができるようにしたものである。 The opening / closing mechanism 6 closes the clamp body 4 and the lid 5 in a state where the conductor is arranged in the holding portion 12 between the clamp body 4 and the lid 5, and the conductor is connected by the clamp body 4 and the lid 5. The lid 5 can be opened with respect to the clamp body 4 while being held with a constant holding force.

開閉機構部6は、図２に示すように、蓋部5をクランプ本体側に向けて押圧可能とする押圧部61と、押圧部61を付勢するコイルばね62と、押しボルト63とを具える。 As shown in FIG. 2, the opening / closing mechanism 6 includes a pressing portion 61 that can press the lid 5 toward the clamp body, a coil spring 62 that biases the pressing portion 61, and a push bolt 63. Yeah.

押圧部61は、開閉機構収納部64の内部で往復動作する円柱部材61aと、この円柱部材61aの軸方向一端側に揺動可能に取付けられるピン61bとを具える。 The pressing portion 61 includes a cylindrical member 61a that reciprocates inside the opening / closing mechanism housing portion 64, and a pin 61b that is swingably attached to one axial end of the cylindrical member 61a.

コイルばね62は、その付勢力で円柱部材61aを図２において蓋部5をクランプ本体4に押し付ける方向に付勢する。このコイルばね62の付勢により、ピン61bが蓋部5の先端部に圧接し、蓋部5がクランプ本体4へ向けて押されて、蓋部5が閉じられた状態になる。 The coil spring 62 urges the cylindrical member 61a with the urging force in the direction in which the lid 5 is pressed against the clamp body 4 in FIG. Due to the biasing of the coil spring 62, the pin 61b comes into pressure contact with the distal end portion of the lid portion 5, and the lid portion 5 is pushed toward the clamp body 4 so that the lid portion 5 is closed.

さらに、押しボルト63は、コイルばね62の付勢力に抗して押圧部61を蓋部5から離れる方向に移動可能にするものである。この押しボルト63は、クランプ本体4に外部から螺締していくことにより、押しボルト63の先端が円柱部材61aのフランジ部に接触するようになっている。 Further, the push bolt 63 enables the pressing portion 61 to move in a direction away from the lid portion 5 against the urging force of the coil spring 62. The push bolt 63 is screwed to the clamp body 4 from the outside so that the tip of the push bolt 63 comes into contact with the flange portion of the columnar member 61a.

本実施形態では、押しボルト63を円柱部材61aに向けてねじ込むことにより、コイルばね62の付勢力に反して円柱部材61aが押しボルト63で押されてピン61b側に移動し、ピン61bが蓋部5から離れてこの蓋部5に対して非接触の状態となる。この状態で、ピン61bを蓋部5から離れる方向に揺動させることにより、蓋部5をクランプ本体4に対して開くことができる。 In this embodiment, by screwing the push bolt 63 toward the cylindrical member 61a, the cylindrical member 61a is pushed by the push bolt 63 against the urging force of the coil spring 62 and moves to the pin 61b side, and the pin 61b is covered by the lid. It is away from the part 5 and is in a non-contact state with respect to the lid part 5. In this state, the lid 5 can be opened with respect to the clamp body 4 by swinging the pin 61b in the direction away from the lid 5.

そして、蓋部5を開いた状態で、蓋部5とクランプ本体4との間の保持部12に導体を配置し、蓋部5を閉じる。次に、ピン61bが蓋部5の先端部外側に当たるようにピン61bを先ほどとは反対の方向に揺動させておいて、押しボルト63を円柱部材61aから離れていく方向に移動させる。この押しボルト63の移動により、円柱部材61aがコイルばね62の付勢力により移動し、ピン61bが蓋部5に圧接し、蓋部5がクランプ本体4へ向けて押されて、蓋部5が閉じられた状態になる。 Then, with the lid portion 5 open, a conductor is disposed on the holding portion 12 between the lid portion 5 and the clamp body 4, and the lid portion 5 is closed. Next, the pin 61b is swung in a direction opposite to the previous direction so that the pin 61b contacts the outside of the tip end portion of the lid portion 5, and the push bolt 63 is moved in a direction away from the cylindrical member 61a. By the movement of the push bolt 63, the cylindrical member 61a is moved by the biasing force of the coil spring 62, the pin 61b is pressed against the lid part 5, the lid part 5 is pushed toward the clamp body 4, and the lid part 5 is Closed state.

さらに、本実施形態では以上の構成において、クレビス部41には、クレビス部41と連結部材2の対向部の摩耗量を検知する検知手段9を設けている。 Further, in the present embodiment, in the above configuration, the clevis portion 41 is provided with a detecting means 9 for detecting the wear amount of the facing portion between the clevis portion 41 and the connecting member 2.

検知手段9は、図２に示すように、クレビス部41の連結部材2との対向面から許容摩耗量の厚み分だけ、クレビス部41の端部を支持軸7の軸心に対して直交する方向に突出させた突出部91により構成している。この突出部91は、クレビス部41の両端部に形成する。このように突出部91を設ける場合、突出部91が消失した状態が摩耗限界となる。 As shown in FIG. 2, the detecting means 9 has the end portion of the clevis portion 41 orthogonal to the axis of the support shaft 7 by the thickness of the allowable wear amount from the surface of the clevis portion 41 facing the connecting member 2. The projecting portion 91 is projected in the direction. The protrusions 91 are formed at both ends of the clevis portion 41. Thus, when providing the protrusion part 91, the state which the protrusion part 91 lose | disappeared becomes a wear limit.

以上のように、本実施形態では、各クランプ部1で保持されている導体に振動が発生し、この振動がクランプ部1に伝わってクレビス部41が摩耗しても、クレビス部41に形成する突出部91の有無は目視にて簡単に確認できることから、本実施形態では、容易にクレビス部41の摩耗度合いが判別できる。 As described above, in this embodiment, even if vibration is generated in the conductor held by each clamp part 1 and this vibration is transmitted to the clamp part 1 and the clevis part 41 is worn, the clevis part 41 is formed. Since the presence or absence of the protruding portion 91 can be easily confirmed visually, in this embodiment, the degree of wear of the clevis portion 41 can be easily determined.

さらに、本実施形態では、突出部91の表面に着色を施すことが好ましい。このように着色を施すことによりさらに摩耗の判別がし易くなる。 Furthermore, in the present embodiment, it is preferable to color the surface of the protruding portion 91. By coloring in this way, it becomes easier to discriminate wear.

（第２実施形態）
次に、本発明の送電線用スペーサーの第２実施形態について、図３から図５に基づいて説明する。 (Second Embodiment)
Next, 2nd Embodiment of the spacer for power transmission lines of this invention is described based on FIGS.

本実施形態の送電線用スペーサーは、前記第１実施形態と同様に導体を保持する４つのクランプ部1と、これらクランプ部1を連結する連結部材2と、連結部材2を支持する支持部材とを具える。 As in the first embodiment, the power transmission line spacer includes four clamp portions 1 that hold conductors, a connection member 2 that connects these clamp portions 1, and a support member that supports the connection member 2. With

第２実施形態は、検知手段9の構成が第１実施形態と異なるだけであり、第１実施形態と同じ構成部分については、同じ符号で示し、説明を省略する。 The second embodiment is different from the first embodiment only in the configuration of the detection means 9, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

そして、第２実施形態の検知手段9は、クレビス部41と連結部材2との間に配設される摩耗検知板92と、摩耗検知板92をクレビス部41に向けて支持軸7の軸方向に付勢する付勢手段8とを具える。 The detection means 9 of the second embodiment includes a wear detection plate 92 disposed between the clevis portion 41 and the connecting member 2, and the axial direction of the support shaft 7 with the wear detection plate 92 facing the clevis portion 41. And urging means 8 for urging the power.

付勢手段8は、前記第１実施形態における付勢手段8と同じものであり、コイルばねから構成されている。そして、図４に示すように、連結部材2のクレビス部41との対向面における付勢手段8が当接する面とは反対側の面に摩耗検知板92を配設する。 The biasing means 8 is the same as the biasing means 8 in the first embodiment, and is constituted by a coil spring. Then, as shown in FIG. 4, a wear detection plate 92 is disposed on the surface opposite to the surface where the urging means 8 abuts on the surface facing the clevis portion 41 of the connecting member 2.

摩耗検知板92は、図５に示すように、台形状をしており、支持軸7が挿通される長孔92aが形成されている。この長孔92aの長手方向の長さおよび摩耗検知板92の面積は、図３および図５に示すように、長孔92aの長手方向端部に支持軸7が位置したときに摩耗検知板92がクレビス部41から突出し、長手方向中央部に支持軸7が位置しているときに摩耗検知板92がクレビス部41から突出しない大きさとしている。 As shown in FIG. 5, the wear detection plate 92 has a trapezoidal shape and is formed with a long hole 92a through which the support shaft 7 is inserted. The length of the long hole 92a in the longitudinal direction and the area of the wear detecting plate 92 are as shown in FIGS. 3 and 5 when the support shaft 7 is positioned at the end of the long hole 92a in the longitudinal direction. Protrudes from the clevis portion 41, and the wear detecting plate 92 is set to a size that does not protrude from the clevis portion 41 when the support shaft 7 is located at the center in the longitudinal direction.

クランプ部1に摩耗が生じていない正常な状態では、図３(a)に示すように、付勢手段であるコイルばね8による付勢力で摩耗検知板92がクレビス部41に押しつけられ、摩耗検知板92は、クレビス部41の内部に収まった状態となる。 In a normal state in which the clamp part 1 is not worn, as shown in FIG. 3A, the wear detection plate 92 is pressed against the clevis part 41 by the urging force of the coil spring 8 as the urging means, thereby detecting the wear. The plate 92 is in a state of being accommodated inside the clevis portion 41.

そして、クレビス部41の摩耗の進行により、コイルばね8の付勢力が弱まり、摩耗検知板92をクレビス部41に押えつけておくことができなくなると、図３(b)に示すように、摩耗検知板92は、その自重あるいは振動でクレビス部41から突出して露出する。 If the urging force of the coil spring 8 is weakened due to the progress of the wear of the clevis portion 41 and the wear detecting plate 92 cannot be pressed against the clevis portion 41, the wear as shown in FIG. The detection plate 92 protrudes from the clevis portion 41 due to its own weight or vibration and is exposed.

この摩耗検知板92の露出により目視にて簡単に摩耗の進行を確認でき、容易に摩耗度合いが判別できる。 By the exposure of the wear detection plate 92, the progress of wear can be easily confirmed visually and the degree of wear can be easily determined.

さらに、摩耗検知板92を設ける場合においても、摩耗検知板92の表面に着色を施すことが好ましい。着色により、摩耗の度合いをさらに良好に判別できる。 Further, even when the wear detection plate 92 is provided, it is preferable to color the surface of the wear detection plate 92. By coloring, the degree of wear can be determined even better.

（第３実施形態）
次に、本発明の送電線用スペーサーの第３実施形態について、図６に基づいて説明する。 (Third embodiment)
Next, 3rd Embodiment of the spacer for power transmission lines of this invention is described based on FIG.

本実施形態の送電線用スペーサーも、前記第１実施形態と同様に導体を保持する４つのクランプ部1と、これらクランプ部1を連結する連結部材2と、連結部材2を支持する支持部材とを具える。 Similarly to the first embodiment, the power transmission line spacer of the present embodiment also includes four clamp portions 1 that hold conductors, a connection member 2 that connects these clamp portions 1, and a support member that supports the connection member 2. With

第３実施形態は、連結部材における支持軸が挿通される孔の摩耗量を検知する検知手段を設けている。第３実施形態も検知手段の構成が第１実施形態と異なるだけであり、第１実施形態と同じ構成部分については、同じ符号で示し、説明を省略する。 In the third embodiment, detection means for detecting the wear amount of the hole through which the support shaft in the connecting member is inserted is provided. The third embodiment also differs from the first embodiment only in the configuration of the detection means, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

第３実施形態の検知手段9は、連結部材2の表面に形成される第１マーキング93で構成されている。第１マーキング93は、連結部材2の孔21の摩耗量が初期摩耗量の範囲内においては第１マーキング93がクレビス部41で覆われ、孔21の摩耗量が初期摩耗量を超えると、クレビス部41の外側に第１マーキング93が現れるようになっている。さらに、この第１マーキング93は、摩耗限界量まで摩耗量に応じてマーキングの露出量が変化するようになっている。 The detection means 9 of the third embodiment is composed of first markings 93 formed on the surface of the connecting member 2. When the wear amount of the hole 21 of the connecting member 2 is within the range of the initial wear amount, the first marking 93 is covered with the clevis portion 41, and when the wear amount of the hole 21 exceeds the initial wear amount, A first marking 93 appears on the outside of the portion 41. Further, the first marking 93 is configured such that the exposure amount of the marking changes according to the wear amount up to the wear limit amount.

連結部材2におけるクレビス部41の連結部分は、クレビス部41のＵ字溝内を揺動可能とするために板状に形成されている。そして、本実施形態では、この連結部材2の板状部分の平面部に第１マーキング93が形成されている。この第１マーキング93は、クレビス部41の端部の円弧形状に沿った円弧部分と、この円弧部分と対向する直線部分とを具えた所定幅を有している。そして、この円弧部分が初期摩耗量の終了位置となり、直線部分が摩耗限界量となる。なお、第１マーキング93は、前記円弧部分を直線とし、第１マーキング93の幅を均一としてもよい。 A connecting portion of the clevis portion 41 in the connecting member 2 is formed in a plate shape so that the inside of the U-shaped groove of the clevis portion 41 can swing. In the present embodiment, the first marking 93 is formed on the flat portion of the plate-like portion of the connecting member 2. The first marking 93 has a predetermined width including an arc portion along the arc shape of the end portion of the clevis portion 41 and a linear portion facing the arc portion. This arc portion is the end position of the initial wear amount, and the straight line portion is the wear limit amount. In addition, the 1st marking 93 is good also considering the said circular arc part as a straight line, and making the width | variety of the 1st marking 93 uniform.

この第１マーキング93により、連結部材2の孔21が支持軸7との接触で摩耗しても、第１マーキング93の露出により目視にて簡単に前記孔21の摩耗の進行を確認でき、容易に摩耗度合いが判別できる。 By this first marking 93, even if the hole 21 of the connecting member 2 is worn by contact with the support shaft 7, the progress of the wear of the hole 21 can be easily confirmed visually by the exposure of the first marking 93. The degree of wear can be distinguished.

（第４実施形態）
次に、本発明の送電線用スペーサーの第４実施形態について、図７に基づいて説明する。 (Fourth embodiment)
Next, 4th Embodiment of the spacer for power transmission lines of this invention is described based on FIG.

本実施形態の送電線用スペーサーも、前記第１実施形態と同様に導体を保持する４つのクランプ部1と、これらクランプ部1を連結する連結部材2と、連結部材2を弾性部材31を介して連結される支持部材3とを具える。 Similarly to the first embodiment, the power transmission line spacer of the present embodiment includes four clamp portions 1 that hold conductors, a connecting member 2 that connects these clamp portions 1, and a connecting member 2 that is connected via an elastic member 31. And a support member 3 connected to each other.

第４実施形態は、連結部材2に、支持部材3または弾性部材31の摩耗量を検知する検知手段9を設けている。第４実施形態も検知手段の構成が第１実施形態と異なるだけであり、第１実施形態と同じ構成部分については、同じ符号で示し、説明を省略する。 In the fourth embodiment, the connecting member 2 is provided with detection means 9 for detecting the amount of wear of the support member 3 or the elastic member 31. The fourth embodiment also differs from the first embodiment only in the configuration of the detection means, and the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

第４実施形態では、弾性部材31は、連結部材2を支持部材3の枠内に向けて付勢するコイルばねで構成されている。 In the fourth embodiment, the elastic member 31 includes a coil spring that biases the connecting member 2 toward the frame of the support member 3.

第４実施形態の検知手段9は、連結部材2の表面に形成される第２マーキング94,95で構成されている。第２マーキング94,95は、クランプ部側マーキング94と支持部材内方側マーキング95の２箇所に設けられている。 The detection means 9 of the fourth embodiment is composed of second markings 94 and 95 formed on the surface of the connecting member 2. The second markings 94 and 95 are provided at two locations, the clamp portion side marking 94 and the support member inner side marking 95.

クランプ部側マーキング94は、支持部材3の摩耗量が初期摩耗量の範囲内にあるときには支持部材3の外側に現れ、摩耗量が初期摩耗量を超えたときに支持部材3内に入って隠れるようになっている。 The clamp portion side marking 94 appears outside the support member 3 when the wear amount of the support member 3 is within the range of the initial wear amount, and enters the support member 3 and hides when the wear amount exceeds the initial wear amount. It is like that.

支持部材内方側マーキング95は、支持部材3または弾性部材31の摩耗量が初期摩耗量の範囲内にあるときには支持部材3で覆われ、摩耗量が初期摩耗量を超えたときに支持部材3の外側に現れるようになっている。 The support member inner side marking 95 is covered with the support member 3 when the wear amount of the support member 3 or the elastic member 31 is within the range of the initial wear amount, and when the wear amount exceeds the initial wear amount, the support member 3 is marked. Appears outside of.

そして、摩耗限界量まで摩耗量に応じて第２マーキング94,95の露出量が変化するようになっている。第２マーキング94,95は、連結部材2の断面円形の外周面の全周に形成されている。 The exposure amount of the second markings 94 and 95 changes according to the wear amount up to the wear limit amount. The second markings 94 and 95 are formed on the entire circumference of the outer peripheral surface of the connecting member 2 having a circular cross section.

本実施形態でも第２マーキング94,95により、支持部材3または連結部材2に摩耗が生じても、第２マーキング94,95の露出により目視にて簡単に支持部材3または連結部材2の摩耗の進行を確認でき、容易に摩耗度合いが判別できる。 Even in the present embodiment, even if the support member 3 or the connecting member 2 is worn by the second markings 94 and 95, the wear of the support member 3 or the connecting member 2 can be easily observed by the exposure of the second markings 94 and 95. Progress can be confirmed and the degree of wear can be easily determined.

なお、本発明は、前記した各実施形態に係る検知手段はスペーサーを構成するいずれの連結部に設けてもよいし、適宜組み合わせるように検知手段を具えるようにしたり、あるいは全ての検知手段を具えるようにしてもよい。 In the present invention, the detection means according to each of the embodiments described above may be provided in any connecting portion constituting the spacer, or may be provided with detection means so as to be combined as appropriate, or all detection means may be provided. It may be provided.

本発明の送電線用スペーサーは、複数の導体を一定間隔に保持する多導体送電線用のスペーサーとして用いる場合に適している。 The spacer for power transmission lines of the present invention is suitable for use as a spacer for multi-conductor power transmission lines that holds a plurality of conductors at regular intervals.

本発明の送電線用スペーサーの第１実施形態であって、４つのクランプ部を具えるスペーサーの全体平面図である。It is 1st Embodiment of the spacer for power transmission lines of this invention, Comprising: It is the whole top view of the spacer which provides four clamp parts. 本発明の送電線用スペーサーの第１実施形態であって、クランプ部と連結部材の部分断面図である。It is 1st Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary sectional view of a clamp part and a connection member. 本発明の送電線用スペーサーの第２実施形態であって、クランプ部と連結部材の部分断面図であり、(a)は摩耗が生じる前の状態、(b)は摩耗が生じて摩耗検知板がクレビス部から突出した状態を示す。It is 2nd Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary sectional view of a clamp part and a connection member, (a) is a state before abrasion arises, (b) is an abrasion produced and a wear detection board Shows a state of protruding from the clevis portion. 本発明の送電線用スペーサーの第２実施形態であって、クランプ部と連結部材の連結部分の部分縦断面図である。It is 2nd Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary longitudinal cross-sectional view of the connection part of a clamp part and a connection member. 本発明の送電線用スペーサーの第２実施形態であって、クランプ部と連結部材の連結部分の部分横断面図である。It is 2nd Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary cross-sectional view of the connection part of a clamp part and a connection member. 本発明の送電線用スペーサーの第３実施形態であって、クランプ部と連結部材の部分断面図であり、(a)は摩耗が生じる前の状態、(b)は摩耗が生じて第１マーキングがクレビス部から現れた状態を示す。It is 3rd Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary sectional view of a clamp part and a connection member, (a) is the state before abrasion generate | occur | produces, (b) is 1st marking after abrasion generate | occur | produces Shows the state of appearing from the clevis part. 本発明の送電線用スペーサーの第４実施形態であって、クランプ部と連結部材の部分断面図であり、(a)は摩耗が生じる前の状態、(b)は摩耗が生じて第２マーキングが支持部材から現れた状態を示す。It is 4th Embodiment of the spacer for power transmission lines of this invention, Comprising: It is a fragmentary sectional view of a clamp part and a connection member, (a) is the state before abrasion occurs, (b) Shows a state of appearing from the support member. 従来の送電線用スペーサーのクランプ部と連結部材の部分断面図であり、(a)は摩耗が生じる前の状態、(b)はクレビス部に摩耗が生じた状態を示す。It is a fragmentary sectional view of the clamp part and connecting member of the conventional power transmission line spacer, (a) shows a state before wear occurs, and (b) shows a state where wear occurs in the clevis part.

Explanation of symbols

1 クランプ部 11 枢軸 12 保持部
2 連結部材 21 孔
3 支持部材 31 弾性部材
4 クランプ本体 41 クレビス部 42 孔
5 蓋部
6 開閉機構部
61 押圧部 61a 円柱部材 61b ピン
62 コイルばね 63 押しボルト 64 開閉機構収納部
7 支持軸 71 フランジ部
8 付勢手段(コイルばね)
9 検知手段 91 突出部 92 摩耗検知板 92a 長孔
93 第１マーキング 94,95 第２マーキング
A クランプ部 B クランプ本体 C 蓋部
D 開閉機構部 D1 付勢ばね D2 開閉部材
D4 押しボルト E 連結部材 F 軸 G コイルばね 1 Clamping part 11 Axis 12 Holding part
2 Connecting member 21 hole
3 Support member 31 Elastic member
4 Clamp body 41 Clevis part 42 Hole
5 Lid
6 Opening / closing mechanism
61 Pressing part 61a Cylindrical member 61b Pin
62 Coil spring 63 Push bolt 64 Opening / closing mechanism housing
7 Support shaft 71 Flange
8 Biasing means (coil spring)
9 Detection means 91 Projection 92 Wear detection plate 92a Long hole
93 1st marking 94,95 2nd marking
A Clamp part B Clamp body C Cover part
D Opening / closing mechanism D1 Biasing spring D2 Opening / closing member
D4 Push bolt E Connecting member F Axis G Coil spring

Claims

A clamp portion having a holding portion for holding a conductor and a clevis portion; and a connecting member connected to the support member by being connected to the clevis portion of the clamp portion , the end of the connecting member being a U-shaped clevis portion A transmission line spacer connected through a support shaft that is inserted through and supported in the axial direction by an urging means ,
A detecting means for detecting the wear amount of the opposing portion of the clevis portion and the connecting member;
The detecting means is constituted by a protruding portion in which the end portion of the clevis portion is protruded in a direction perpendicular to the axis of the support shaft from the surface of the clevis portion facing the connecting member by the thickness of the allowable wear amount. A transmission line spacer characterized by having

The transmission line spacer according to claim 1, wherein the surface of the protruding portion is colored.

A coupling member comprising a holding portion for holding a conductor and a clevis portion, a connecting member connected to one end side of the clevis portion of the clamping portion , and a support member connected to the other end side of the connecting member. Is a spacer for a power transmission line connected to the support member via an elastic member,
The connecting member is provided with a detecting means for detecting the wear amount of the support member or the wear amount of the connecting member,
The detection means is composed of a pair of markings formed on the surface of the connecting member,
One of the markings is gradually covered with the support member according to the wear amount from the time when the wear amount of the support member or the connecting member exceeds the initial wear amount to the wear limit amount,
The other marking is designed to appear in stages from the support member according to the wear amount from the time when the wear amount of the support member or the connecting member exceeds the initial wear amount to the wear limit amount,
A transmission line spacer, characterized in that a wear amount is detected by a change in an exposure amount of at least one marking appearing on the outside of a support member.