JP3041767B2 - Limit wear amount marking type overhead wire fitting - Google Patents
Limit wear amount marking type overhead wire fittingInfo
- Publication number
- JP3041767B2 JP3041767B2 JP8148184A JP14818496A JP3041767B2 JP 3041767 B2 JP3041767 B2 JP 3041767B2 JP 8148184 A JP8148184 A JP 8148184A JP 14818496 A JP14818496 A JP 14818496A JP 3041767 B2 JP3041767 B2 JP 3041767B2
- Authority
- JP
- Japan
- Prior art keywords
- link
- clevis
- overhead wire
- wear
- mark
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は、架空電力線や架空
地線を支持する耐張装置、懸垂装置等を構成する架線金
具の取替時期の標示に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indication of a replacement time of a wire fitting constituting a tension device, a suspension device, and the like for supporting an overhead power line or an overhead ground wire.
【０００２】[0002]
【従来の技術】一般に支軸で連結される両架線金具の可
動連結部はクレビス部とリンク部またはクレビス部とヨ
ーク部である。例えば図１０および図１１に示す地線懸
垂装置においては、懸垂装置取付金具５２と直角クレビ
ス５３の支軸５１挿通箇所、直角クレビス５３と１枚リ
ンク５５の支軸５４挿通箇所、１枚リンク５５とフリー
センタ形懸垂クランプ５７の一対の吊金具５８，５８の
支軸５６挿通箇所、フリーセンタ形懸垂クランプ５７の
クランプ本体６０と吊金具５８の支軸５９挿通箇所であ
る。2. Description of the Related Art In general, movable connecting portions of two overhead wire fittings connected by a support shaft are a clevis portion and a link portion or a clevis portion and a yoke portion. For example, in the ground wire suspension device shown in FIGS. 10 and 11, the suspension device mounting bracket 52 and the support shaft 51 insertion point of the right angle clevis 53, the right angle clevis 53 and the support shaft 54 insertion position of the single link 55, one link 55 And the center of the free center suspension clamp 57 through which the support shaft 56 is inserted by the pair of hanging members 58, 58, and the center of the free center type suspension clamp 57 through which the support shaft 59 is inserted by the suspension bracket 58.
【０００３】架線金具の回動連結部は、支持する架空電
力線あるいは架空地線が風力や着氷雪などの外力によっ
て揺動するために摩耗し、摩耗が進行するのに伴い強度
が低下して最終的には破断することがある。[0003] The rotating connecting portion of the overhead wire fitting is worn because the overhead power line or the overhead ground wire to be supported is rocked by external force such as wind force or icing snow. May break.
【０００４】そこで、従来では周期的に行う保守点検時
に架線金具の回動連結部周りの錆や摩耗粉の発生、腐蝕
の程度、使用条件等を考慮して架線金具取替時期を判断
し、取替えていた。Therefore, conventionally, at the time of periodic maintenance and inspection, the time of replacement of the overhead wire fittings is determined in consideration of the generation of rust and abrasion powder around the rotary connecting portion of the overhead wire fittings, the degree of corrosion, operating conditions, and the like. Had been replaced.
【０００５】[0005]
【発明が解決しようとする課題】ところが、このような
架線金具取替時期の判断には架線金具の摩耗程度が把握
されていないので、架線金具の取替時期がきているのに
取替えなかつたために大きな事故につながるとか、ま
た、それを恐れてまだ十分に使用できるのに取替える等
の不都合があつた。However, since the degree of abrasion of the overhead wire fittings is not grasped in such a determination of the replacement time of the overhead wire fittings, the replacement of the overhead wire fittings has not been made even though the replacement time has come. There were inconveniences such as leading to a major accident, and replacing it even though it could be used enough for fear of it.
【０００６】本発明は前記の実情に鑑みてなされたもの
で、簡潔且つ安価な手段によつて架線金具の適切な取替
時期を目視のみで簡単に判定できるようにした限界摩耗
量標示型架線金具を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a limit wear amount indicating type overhead wire in which an appropriate replacement time of an overhead wire fitting can be easily determined only by visual inspection with simple and inexpensive means. The purpose is to provide metal fittings.
【０００７】[0007]
【課題を解決するための手段】本発明の限界摩耗量標示
型架線金具は、架線金具のクレビス部に支軸を介して回
動可能に連結された架線金具のリンク部の前記クレビス
部との対向面に、回動連結部の摩耗により前記リンク部
が所定長変位したとき前記のクレビス部の先端とほぼ合
致する限界摩耗マークと、使用開始時にクレビス部先端
とほぼ合致する使用初期マークとを表示したことを特徴
とするものである。尚、前記リンク部はヨーク部と読み
替えることができる。According to the present invention, there is provided a critical wear amount indicating type overhead wire fitting according to the present invention, in which a link portion of the overhead wire fitting rotatably connected to a clevis portion of the overhead wire fitting via a support shaft with the clevis portion. On the opposing surface, a limit wear mark that substantially matches the tip of the clevis portion when the link portion is displaced by a predetermined length due to wear of the rotating connection portion, and an initial use mark that almost matches the clevis portion tip at the start of use. It is characterized by being displayed. The link portion can be read as a yoke portion.
【０００８】前記手段により、回動連結された箇所の繰
返し回動により生じる摩耗の進行によつて、クレビス部
先端と使用初期マークとの間隔が広がり、この間隔から
限界摩耗マークが現れなくても架線金具取替時期を推定
でき、限界摩耗マークが現れる時またはそれより前の適
当な時期に架線金具を交換することができる。By the above means, the distance between the tip of the clevis portion and the initial use mark is widened due to the progress of wear caused by the repeated rotation of the rotationally connected portion, and even if the limit wear mark does not appear from this distance. The overhead wire replacement time can be estimated, and the overhead wire fitting can be replaced at an appropriate time before or before the critical wear mark appears.
【０００９】[0009]
【発明の実施の形態】本発明の実施の形態を図面に基づ
いて説明する。図１〜図４に示す地線懸垂装置におい
て、例えば懸垂装置取付金具３に回動自在に連結された
クレビスリンク４のクレビス部１７に支軸２２を介して
回動自在に連結された１枚リンク５には、クレビスリン
ク４のクレビス部１７の一方の片部と対向する面部３０
（図３）に使用初期マーク１９と限界摩耗マーク１８と
を表示しておく。Embodiments of the present invention will be described with reference to the drawings. In the ground wire suspension device shown in FIGS. 1 to 4, for example, one sheet rotatably connected via a support shaft 22 to a clevis portion 17 of a clevis link 4 rotatably connected to the suspension device mounting bracket 3. The link 5 has a surface portion 30 facing one side of the clevis portion 17 of the clevis link 4.
FIG. 3 shows an initial use mark 19 and a limit wear mark 18.
【００１０】限界摩耗マーク１８は架線金具のリンク部
またはヨーク部例えば１枚リンク５の上部のリンク部２
０の強度が限界摩耗強度（所定安全率が確保できる強
度）まで低下した時点でのリンク部２０と支軸２２およ
びクレビス部１７と支軸２２の各回動連結部の摩耗によ
る合計変位量から定めており、限界摩耗強度は架空電力
線や架空地線の保守基準（客先仕様）から設定してい
る。The critical wear mark 18 is a link portion or a yoke portion of the overhead wire fitting, for example, the link portion 2 above the single link 5.
0 is determined from the total displacement caused by the wear of the rotating portions of the link portion 20 and the support shaft 22 and the clevis portion 17 and the support shaft 22 at the time when the strength of the tire 0 decreases to the limit wear strength (strength that can secure a predetermined safety factor). The critical wear strength is set based on the maintenance standards (customer specifications) for overhead power lines and overhead ground lines.
【００１１】使用開始時、例えばクレビスリンク４のク
レビス部１７のほぼ先端にあつた１枚リンク５の使用初
期マーク１９は、当該回動連結部の繰返し回動による接
触摩耗の進行するにつれてクレビス部１７の先端との間
隔が広がつていく。従つて、従来のように回動連結部周
りの錆や摩耗粉の発生、腐蝕の程度、使用条件等から経
験的に架線金具取替時期を判断するのとは異なり、当該
回動連結部の摩耗程度を確認できるから、限界摩耗マー
ク１８が現れなくても金具取替時期に近づいたかどうか
の判断ができる。摩耗がさらに進行し、限界摩耗マーク
１８がクレビス部１７の先端に現れると、架線金具取替
時期にきているので、新しいものと交換することにな
る。At the start of use, for example, the initial use mark 19 of the single link 5 substantially at the tip of the clevis portion 17 of the clevis link 4 is moved to the clevis portion as the contact wear progresses due to the repeated rotation of the rotation connection portion. The distance from the tip of 17 increases. Therefore, unlike the conventional method of empirically determining the replacement time of the overhead wire fitting from the generation of rust and abrasion powder around the rotation connection portion, the degree of corrosion, the use conditions, etc. Since the degree of wear can be confirmed, it is possible to determine whether or not the metal fitting replacement time is approached even if the marginal wear mark 18 does not appear. When the wear further progresses and the limit wear mark 18 appears at the tip of the clevis portion 17, it is time to replace the overhead wire fitting, and the wire must be replaced with a new one.
【００１２】以下、具体的に説明する。図１および図２
は使用開始時の地線懸垂装置を示し、図３および図４は
架線金具取替時期にきた地線懸垂装置を示す。この地線
懸垂装置１は、固定支持構造物例えば鉄塔の頂部２に取
付ける懸垂装置取付金具３に直角クレビスリンク４、１
枚リンク５を介してフリーセンタ形懸垂クランプ６を連
結してなる。Hereinafter, a specific description will be given. 1 and 2
Shows the ground wire suspension device at the start of use, and FIG. 3 and FIG. 4 show the ground wire suspension device at the time of replacing the overhead wire bracket. The suspension device 1 is provided with a clevis link 4, 1 at right angles to a suspension device mounting bracket 3 mounted on a fixed support structure, for example, a top portion 2 of a steel tower.
A free center type suspension clamp 6 is connected via a sheet link 5.
【００１３】懸垂装置取付金具３は、中央に孔部を有す
る方形の取付座７の下面両側の中央に一対の軸受部８，
８を突設すると共に、４隅にボルト孔９を穿設し、これ
らのボルト孔９に挿通したボルト１０とナット１１とで
固定支持構造物の頂部２に下向きに固着し、軸受部８，
８に挿通したボルト１２を介して直角クレビスリンク４
のリンク部１３を回動可能に取付ける。The suspension device mounting bracket 3 is provided with a pair of bearings 8, at the center on both sides of the lower surface of a rectangular mounting seat 7 having a hole in the center.
8 and projecting bolt holes 9 at four corners, and are fixed downward to the top 2 of the fixed support structure with bolts 10 and nuts 11 inserted through these bolt holes 9, and
Right angle clevis link 4 via bolt 12 inserted in
Is pivotally mounted.
【００１４】直角クレビスリンク４は、懸垂装置取付金
具３の取付座７と両軸受部８，８とで形成されたクレビ
ス部１４における一方の軸受部８と対向する面部１５
に、図５に示すようにボルト１２を挿通するボルト孔１
６からクレビス部１７へ向け順次限界摩耗マーク１８、
使用初期マーク１９を刻設する。尚、図５〜図７に示す
ボルト孔１６，２６、支軸取付孔３８はボルト１２，２
２、支軸３２との接触摩耗により長孔状となつている。The right-angle clevis link 4 has a surface portion 15 opposed to one bearing portion 8 of a clevis portion 14 formed by the mounting seat 7 of the suspension device mounting bracket 3 and the two bearing portions 8, 8.
The bolt hole 1 through which the bolt 12 is inserted as shown in FIG.
From the 6 to the clevis part 17, the marginal wear mark 18,
An initial use mark 19 is engraved. The bolt holes 16 and 26 and the shaft mounting hole 38 shown in FIGS.
2. It has a long hole shape due to contact wear with the support shaft 32.
【００１５】１枚リンク５は、上部のリンク部２０を直
角クレビスリンク４のクレビス部１７にボルト２２で回
動可能に連結し、下部のリンク部２１にフリーセンタ形
懸垂クランプ６の一対の吊金具２３，２３の上部のリン
ク部２４，２４をボルト２５で回動可能に連結してい
る。尚、ボルト１２，２２，２５の軸方向の移動はナッ
ト２８、割ピン２９で拘束している。The single link 5 has an upper link portion 20 rotatably connected to the clevis portion 17 of the right-angle clevis link 4 by a bolt 22 and a lower link portion 21 having a pair of suspensions of a free center type suspension clamp 6. The link portions 24 on the upper parts of the metal fittings 23 are rotatably connected by bolts 25. The axial movement of the bolts 12, 22, 25 is restrained by a nut 28 and a split pin 29.
【００１６】１枚リンク５は、直角クレビスリンク４の
クレビス部１７の一方の片部と対向する面部３０に、図
６に示すようにボルト２２を挿通するボルト孔２６から
吊金具取付け用のボルト孔２７へ向け順次限界摩耗マー
ク１８、使用初期マーク１９を刻設する。As shown in FIG. 6, a single link 5 is provided on a surface 30 of the right-angle clevis link 4 which faces one of the clevis portions 17 through a bolt hole 26 through which a bolt 22 is inserted. A limit wear mark 18 and a use initial mark 19 are sequentially engraved toward the hole 27.
【００１７】フリーセンタ形懸垂クランプ６は、一対の
吊金具２３，２３と、一対の吊金具２３，２３の下部の
リンク部３１，３１に支軸３２，３２で回動可能に連結
されたクランプ本体３３と、このクランプ本体３３にボ
ルト３４、ナット３５で取付けられてクランプ本体３３
とで電線をクランプする押え金具３６からなる。The free center suspension clamp 6 is a clamp which is rotatably connected to a pair of hanging members 23, and link portions 31, 31 below the pair of hanging members 23, 23 by supporting shafts 32, 32. A main body 33 and a clamp main body 33 attached to the clamp main body 33 with bolts 34 and nuts 35.
And a clamp 36 for clamping the electric wire.
【００１８】吊り金具２３は、クランプ本体３３の両外
側部中央に形成されたクレビス部３７の外側片部と対向
する面部３９に、図７に示すように支軸３２を挿通する
支軸取付孔３８から上方へ向け順次限界摩耗マーク１
８、使用初期マーク１９を刻設する。As shown in FIG. 7, the hanging metal fitting 23 has a support shaft mounting hole formed in a surface portion 39 of the clevis portion 37 formed at the center of both outer portions of the clamp body 33 and facing the outer piece. Marginal wear mark 1 in order from 38 upward
8. The initial use mark 19 is engraved.
【００１９】尚、１枚リンク５の下部のリンク部２１に
ボルト２５を介して一対の吊金具２３，２３の上部を連
結する箇所と、１枚リンク５の上部のリンク部２０にボ
ルト２２を介してクレビス部１７を連結する箇所の磨耗
によるリンク部２１と２２の変位量を同程度とみている
ので、下部のリンク部２１には限界摩耗マークおよび使
用初期マークの刻設を省略している。A bolt 22 is connected to the lower link portion 21 of the single link 5 via a bolt 25 to connect the upper portions of the pair of hanging members 23, 23 and the link portion 20 above the single link 5. Since the displacement of the link portions 21 and 22 due to wear at the place where the clevis portion 17 is connected through the intermediary portion is considered to be substantially the same, the engraving of the limit wear mark and the initial use mark on the lower link portion 21 is omitted. .
【００２０】リンク部１３，２０，３１の使用初期マー
ク１９，１９，１９は使用開始時クレビス部１４，１
７，３７の先端にほぼ合致するように設けられている
が、限界摩耗マーク１８，１８，１８の位置は、リンク
部１３，２０，３１の支軸１２，２２，３２取付部の強
度が限界摩耗強度（所定安全率が確保できる強度）まで
低下した時点でのクレビス部１４，１７，３７とボルト
１２，２２，３２およびリンク部１３，２０，３１とボ
ルト１２，２２，３２の各接触箇所の摩耗によるリンク
部１３，２０，３１の変位量から求めている。この摩耗
による変位量は回動連結部の材質、サイズ、荷重、使用
条件等によつて変わるから、限界摩耗マーク１８は図５
に仮想線で示すようにボルト孔１６にかかる場合もあり
得る。限界摩耗強度は、架空電力線や架空地線の保守基
準（客先仕様）から設定する。一般に実破壊強度は架線
金具の引張強度の１．５倍〜２．０倍程度であるが、耐
摩耗設計における限界摩耗強度と実破壊強度との関係は
さらにその倍率が大きくなる。The initial use marks 19, 19, 19 of the link parts 13, 20, 31 are clevis parts 14, 1 at the start of use.
Although they are provided so as to almost coincide with the tips of 7, 37, the positions of the limit wear marks 18, 18, 18 are limited by the strength of the mounting portions of the support shafts 12, 22, 32 of the link portions 13, 20, 31. Contact points between the clevis parts 14, 17, 37 and the bolts 12, 22, 32 and the link parts 13, 20, 31 and the bolts 12, 22, 32 when the wear strength (strength at which a predetermined safety factor can be ensured) is reduced. From the displacement of the link portions 13, 20, 31 due to the abrasion. Since the amount of displacement due to this wear varies depending on the material, size, load, operating conditions, and the like of the rotary connecting portion, the limit wear mark 18 is shown in FIG.
As shown by a virtual line in FIG. The critical wear strength is set based on the maintenance standards (customer specifications) for overhead power lines and overhead ground lines. Generally, the actual breaking strength is about 1.5 to 2.0 times the tensile strength of the overhead metal fittings, but the magnification between the critical wear strength and the actual breaking strength in the wear resistance design is further increased.
【００２１】尚、直角クレビスリンク４のリンク部１３
および１枚リンク５のリンク部２０の片面にそれぞれ限
界磨耗マーク１８と使用初期マーク１９を刻設したが、
両面に設けてもよい。また、使用初期マーク１９には例
えば青色、限界摩耗マーク１８には赤色と色分けすれば
一層見易くなる。The link portion 13 of the right-angle clevis link 4
And a limit wear mark 18 and an initial use mark 19 are engraved on one side of the link portion 20 of the single link 5, respectively.
It may be provided on both sides. Further, if the initial use mark 19 is color-coded, for example, blue, and the marginal wear mark 18 is color-coded red, it becomes easier to see.
【００２２】以上は、架線金具のクレビス部と架線金具
のリンク部の回動連結箇所における摩耗量標示について
説明したが、架線金具のクレビス部と架線金具のヨーク
部の回動連結箇所についてもリンク部がヨーク部に代わ
つただけで磨耗量標示に関する考え方は同じである。例
えば図８および図９に示すように地側ヨーク４０を直角
クレビス４１、直角クレビスリンク４２等を介して鉄塔
アームに連結する導体耐張装置では、地側ヨーク４０の
使用初期マーク１９は使用開始時直角クレビス４１のク
レビス部４６の先端とほぼ合致する位置に刻設し、限界
摩耗マーク１８はヨーク頂点部の強度が限界摩耗強度ま
で低下した時点での当該回動連結部の摩耗による地側ヨ
ーク４０の変位量だけ使用初期マーク１９からボルト孔
４４寄りに刻設する。While the above description has been given of the wear amount indication at the rotationally connected portion between the clevis portion of the overhead wire fitting and the link portion of the overhead wire fitting, the link between the clevis portion of the overhead wire fitting and the yoke portion of the overhead wire fitting is also linked. The idea regarding the indication of the amount of wear is the same except that the part is replaced by the yoke part. For example, as shown in FIGS. 8 and 9, in the conductor tensioning device in which the ground side yoke 40 is connected to the tower arm via the right-angle clevis 41, the right-angle clevis link 42, etc., the initial use mark 19 of the ground side yoke 40 starts to be used. It is engraved at a position substantially coincident with the tip of the clevis portion 46 of the right-angle clevis 41, and the marginal wear mark 18 is on the ground side due to the wear of the rotary connecting portion when the strength of the yoke apex portion has decreased to the marginal wear intensity. It is engraved by the amount of displacement of the yoke 40 near the bolt hole 44 from the initial use mark 19.
【００２３】[0023]
【発明の効果】以上説明したように本発明によれば、架
線金具のリンク部またはヨーク部に限界摩耗マークと使
用初期マークを設けた簡潔且つ安価な手段によつて、点
検時クレビス先端と使用初期マークとの間隔から適切な
架線金具取替え時期を予測でき、取替時期を逸すること
なく、取替えることができる。As described above, according to the present invention, the clevis tip for inspection can be used by a simple and inexpensive means in which a limit wear mark and an initial use mark are provided on the link or yoke of the overhead wire fitting. An appropriate replacement time of the overhead wire fitting can be predicted from the interval from the initial mark, and the replacement can be performed without missing the replacement time.
【図１】本発明を実施した地線懸垂装置の鉄塔取付け時
の側面図である。FIG. 1 is a side view of a ground wire suspension device embodying the present invention when a steel tower is attached.
【図２】図１の地線懸垂装置の正面図である。FIG. 2 is a front view of the ground wire suspension device of FIG. 1;
【図３】架線金具取替え時期にきた地線懸垂装置の側面
図である。FIG. 3 is a side view of the ground wire suspension device when the overhead wire metal fitting is replaced.
【図４】図３の地線懸垂装置の正面図である。FIG. 4 is a front view of the ground wire suspension device of FIG. 3;
【図５】図３に示す地線懸垂装置の直角クレビスの正面
図である。FIG. 5 is a front view of a right angle clevis of the ground wire suspension device shown in FIG. 3;
【図６】図３に示す地線懸垂装置の１枚リンクの正面図
である。FIG. 6 is a front view of one link of the ground wire suspension device shown in FIG. 3;
【図７】図３に示す地線懸垂装置の吊金具の下部の正面
図である。FIG. 7 is a front view of a lower part of a hanging bracket of the ground wire suspension device shown in FIG. 3;
【図８】本発明を実施した導体耐張装置の鉄塔取付時の
地側の架線金具の平面図である。FIG. 8 is a plan view of an overhead wire fitting on the ground side when a steel tower is attached to the conductor tension apparatus according to the present invention.
【図９】図８の地側ヨーク部の一部切欠き拡大平面図で
ある。FIG. 9 is an enlarged plan view of a partly cutaway portion of the ground side yoke portion of FIG. 8;
【図１０】従来の地線懸垂装置の側面図である。FIG. 10 is a side view of a conventional ground wire suspension device.
【図１１】図１０の地線懸垂装置の正面図である。FIG. 11 is a front view of the ground wire suspension device of FIG. 10;
３ 懸垂装置取付金具 ４ 直角クレビスリンク ５ １枚リンク ６ フリーセンタ型懸垂クランプ １２ ボルト １３ リンク部 １４ クレビス部 １７ クレビス部 １８ 限界摩耗マーク １９ 使用初期マーク ２０ リンク部 ２２ ボルト ２３ 吊金具 ３１ リンク部 ３２ 支軸 ３７ クレビス部 ４０ ヨーク ４１ 直角クレビス ４３ ボルト ４６ クレビス部 Reference Signs List 3 Suspension device mounting bracket 4 Right angle clevis link 5 Single link 6 Free center suspension clamp 12 Bolt 13 Link section 14 Clevis section 17 Clevis section 18 Limit wear mark 19 Initial use mark 20 Link section 22 Bolt 23 Suspension bracket 31 Link section 32 Support shaft 37 Clevis part 40 Yoke 41 Right angle clevis 43 Bolt 46 Clevis part
フロントページの続き (72)発明者 木野 幸成 福岡市中央区渡辺通二丁目１番82号 九 州電力株式会社内 (72)発明者 中村 成果 大阪府枚方市磯島南町13番１号 日本カ タン株式会社内 (72)発明者 下橋 清美 大阪府枚方市磯島南町13番１号 日本カ タン株式会社内 (56)参考文献 特開 平７−298466（ＪＰ，Ａ) 実開 昭57−11902（ＪＰ，Ｕ) 実開 平３−45068（ＪＰ，Ｕ) 実開 平２−10714（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H02G 7/00 Continuing on the front page (72) Inventor Yukinari Kino 2-182 Watanabe-dori, Chuo-ku, Fukuoka City Inside Kyushu Electric Power Company (72) Inventor Nakamura Achievement 13-1 Isojima Minamicho, Hirakata City, Osaka Japan In-company (72) Inventor Kiyomi Shimohashi 13-1 Isojima Minamicho, Hirakata-shi, Osaka Nippon Katan Co., Ltd. (56) References JP-A-7-298466 (JP, A) Japanese Utility Model Application No. 57-11902 (JP) , U) JP-A-3-45068 (JP, U) JP-A-2-10714 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H02G 7/00
Claims (2)
（１４，１７，３７）に支軸（１２，２２，３２）を介
して回動可能に連結された架線金具（４，５，２３）の
リンク部（１３，２０，３１）の前記クレビス部（１
４，１７，３７）との対向面に、回動連結部の摩耗によ
り前記リンク部（１３，２０，３１）が所定長変位した
とき前記クレビス部（１４，１７，３７）の先端とほぼ
合致する限界摩耗マーク（１８）と、使用開始時にクレ
ビス部（１４，１７，３７）先端とほぼ合致する使用初
期マーク（１９）とを表示したことを特徴とする限界摩
耗量標示型架線金具。An overhead wire fitting (4, 5) rotatably connected to a clevis portion (14, 17, 37) of an overhead wire fitting (3, 4, 6) via a support shaft (12, 22, 32). , 23) and the clevis portion (1) of the link portion (13, 20, 31).
4, 17, 37), due to the wear of the rotating connection part.
The link portions (13, 20, 31) have been displaced by a predetermined length.
When the tip of the clevis part (14, 17, 37)
The matching critical wear mark (18) and the
The first use that almost matches the tip of the screw part (14, 17, 37)
And a period mark (19) .
した請求項１記載の限界摩耗量標示型架線金具。2. A yoke portion instead of the link portion of the overhead wire fitting.
2. The overhead wire fitting according to claim 1, further comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8148184A JP3041767B2 (en) | 1996-05-16 | 1996-05-16 | Limit wear amount marking type overhead wire fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8148184A JP3041767B2 (en) | 1996-05-16 | 1996-05-16 | Limit wear amount marking type overhead wire fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09308064A JPH09308064A (en) | 1997-11-28 |
| JP3041767B2 true JP3041767B2 (en) | 2000-05-15 |
Family
ID=15447129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8148184A Expired - Fee Related JP3041767B2 (en) | 1996-05-16 | 1996-05-16 | Limit wear amount marking type overhead wire fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3041767B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2516381A (en) * | 2010-08-04 | 2015-01-21 | Miller Int Ltd | Wear indicators for a coupler for an excavator |
| JP2013135512A (en) * | 2011-12-26 | 2013-07-08 | Furukawa Electric Power Systems Co Ltd | Conductor grip for spacer |
| JP5852905B2 (en) * | 2012-03-01 | 2016-02-03 | 日本カタン株式会社 | Suspension device |
| JP6003421B2 (en) * | 2012-09-07 | 2016-10-05 | 東京電力ホールディングス株式会社 | Ground wire suspension system |
| JP6400527B2 (en) * | 2015-05-21 | 2018-10-03 | 住電機器システム株式会社 | Transmission line spacer |
| JP6488480B2 (en) * | 2015-08-19 | 2019-03-27 | 住電機器システム株式会社 | Wear detection member for power line spacers and power line spacer parts |
| CN112186620B (en) * | 2020-08-31 | 2021-10-01 | 国网河北省电力有限公司邢台供电分公司 | High altitude cable mark device |
-
1996
- 1996-05-16 JP JP8148184A patent/JP3041767B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09308064A (en) | 1997-11-28 |
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