JP4632308B2 - Yoke replacement method and yoke replacement tool - Google Patents

Yoke replacement method and yoke replacement tool Download PDF

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JP4632308B2
JP4632308B2 JP2005320635A JP2005320635A JP4632308B2 JP 4632308 B2 JP4632308 B2 JP 4632308B2 JP 2005320635 A JP2005320635 A JP 2005320635A JP 2005320635 A JP2005320635 A JP 2005320635A JP 4632308 B2 JP4632308 B2 JP 4632308B2
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yoke
wire
replacement tool
replacement
suspension
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JP2007126013A (en
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康広 武田
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日本電設工業株式会社
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本発明は、トロリ線とこのトロリ線を吊架する吊架線類とをまとめて引き留めるヨークの取替方法及びこの方法に用いるヨーク取替用工具に関する。   The present invention relates to a yoke replacement method for collectively holding a trolley wire and suspension lines for suspending the trolley wire, and a yoke replacement tool used in this method.

電車線路においては、電車のパンタグラフに給電するトロリ線が設けられており、このトロリ線を吊架する手段として、吊架線、補助吊架線等の吊架線類が用いられている。このようなトロリ線、吊架線類を電柱間に張るために、トロリ線、吊架線類の両端をまとめて引き留めるヨークと呼ばれる金具を用いる。このようなヨークとして、特許文献１（特開平７−２７７０４３号公報）には、上部に吊架線を、下部にトロリ線を夫々係止し、中間部にテンションバランサの引留めロープを係止するヨークが開示されている。
特開平７−２７７０４３号公報 In the train track, a trolley wire for supplying power to the pantograph of the train is provided, and as a means for suspending the trolley wire, suspension lines such as a suspension line and an auxiliary suspension line are used. In order to stretch such trolley wires and suspension wires between utility poles, a metal fitting called a yoke that holds both ends of the trolley wires and suspension wires together is used. As such a yoke, in Patent Document 1 (Japanese Patent Laid-Open No. 7-277043), a suspension wire is locked to the upper portion, a trolley wire is locked to the lower portion, and a retaining rope of a tension balancer is locked to the middle portion. A yoke is disclosed.
JP-A-7-277043

このようなヨークを用いて具体的にどのように電柱間でトロリ線等を吊架するのかにつき図１を参照しつつ説明する。図１は、トロリ線、吊架線、補助吊架線にテンションをかけるための電柱部における構造を示すものである。図１の（ａ）は当該構造を上面からみた要部概略図、また（ｂ）は当該構造を側面から見た図である。   A specific description will be given of how to suspend a trolley wire or the like between utility poles using such a yoke with reference to FIG. FIG. 1 shows a structure of a power pole portion for applying tension to a trolley wire, a suspension wire, and an auxiliary suspension wire. (A) of FIG. 1 is the principal part schematic which looked at the said structure from the upper surface, and (b) is the figure which looked at the said structure from the side.

トロリ線３は、電車のパンタグラフに接触し電車に給電を行う線であり、このトロリ線３は、吊架線１及び補助吊架線２により吊架されている。トロリ線３及び補助吊架線２は、ワイヤーターンバックル１０１を介して第１ヨーク５の一方側のそれぞれの端に接続されている。第１ヨーク５の他方側には引き留め金具１０２を介して渡し線４が接続されている。この渡し線４は、第２ヨーク６の一方側の一端に引き留め金具１０２を介して接続されている。第２ヨーク６の一方側の別の端には、吊架線１がワイヤーターンバックル１０１を介して接続されている。なお、本命最初では、渡し線４も含めて吊架線類と呼ぶこととする。   The trolley line 3 is a line that contacts the pantograph of the train and supplies power to the train. The trolley line 3 is suspended by the suspension line 1 and the auxiliary suspension line 2. The trolley wire 3 and the auxiliary suspension wire 2 are connected to respective ends on one side of the first yoke 5 via a wire turnbuckle 101. The connecting wire 4 is connected to the other side of the first yoke 5 via a retaining metal fitting 102. The connecting wire 4 is connected to one end of one side of the second yoke 6 via a fastening metal fitting 102. The suspension wire 1 is connected to another end on one side of the second yoke 6 via a wire turnbuckle 101. At the beginning of the main course, it will be referred to as the suspension lines including the connecting line 4.

第２ヨーク６の他方側はＵクレビス１０３を介して第３ヨーク７の一方側に連結されている。第３ヨーク７の他方側には、２列の懸垂碍子９が、連結金具１０６、１０７を介しつつ複数個接続されている。２列の懸垂碍子９のもう一方側は、第４ヨーク１０の一方側両端にそれぞれ接続される。第４ヨーク１０の他方側は、連結金具１０８を介して、第５ヨーク１１の一方側に接続される。第５ヨーク１１の他方側の両端はワイヤ１１０が接続されており、このワイヤ１１０には滑車１３を介して、もう一端におもり１４が吊り下げられた状態となっている。以上の構成によって、吊架線１、補助吊架線２、トロリ線３それぞれにテンションがかけられる仕組みとなっている。   The other side of the second yoke 6 is connected to one side of the third yoke 7 via a U clevis 103. A plurality of hanging insulators 9 in two rows are connected to the other side of the third yoke 7 via connecting fittings 106 and 107. The other side of the two rows of hanging insulators 9 is connected to both ends of one side of the fourth yoke 10, respectively. The other side of the fourth yoke 10 is connected to one side of the fifth yoke 11 via a coupling fitting 108. A wire 110 is connected to both ends of the other side of the fifth yoke 11, and a weight 14 is suspended from the wire 110 via the pulley 13 at the other end. With the above configuration, a tension is applied to each of the suspension line 1, the auxiliary suspension line 2, and the trolley line 3.

ところで、電車の営業運転速度を上げるような変更を行う場合には、トロリ線、吊架線、補助吊架線を張り替える必要が生じることがある。この際、今まで用いてきたトロリ線、吊架線、補助吊架線それぞれを、異なる張力のものに変更するような場合には、トロリ線、吊架線、補助吊架線を直接的に引き留めているヨークである第１ヨーク５、第２ヨーク６の引き留めバランスが変更されることとなるので、トロリ線、吊架線、補助吊架線の張り替えと併せて第１ヨーク５、第２ヨーク６の交換も行う必要が生じる。   By the way, when making a change to increase the commercial operation speed of the train, it may be necessary to replace the trolley line, the suspension line, and the auxiliary suspension line. At this time, when changing the trolley wire, suspension wire, and auxiliary suspension wire used so far to those of different tensions, the yoke that directly holds the trolley wire, suspension wire, and auxiliary suspension wire Since the holding balance of the first yoke 5 and the second yoke 6 is changed, the first yoke 5 and the second yoke 6 are exchanged together with the replacement of the trolley wire, the suspension wire, and the auxiliary suspension wire. Need arises.

従来の第1の第2ヨークの交換方法につき、図2を参照しつつ説明する。図2は、トロリ線、吊架線、補助吊架線を交換する際の様子を側面から見た図である。なお、図1中と同一部材については参照符号の記載を省略しているものもある。第2ヨークの交換方法には、まず、吊架線１及び渡し線４を、ワイヤ１５及びワイヤ１６でつる作業を行う。ワイヤ１５の一端を電柱１２にくくりつけ、もう一端を吊架線１に固着金具１０５で取り付けると共に、ワイヤ１５の途中には張線器１８を挿入する。同様にして、ワイヤ１６の一端も電柱１２にくくりつけ、もう一端を渡し線４に固着金具１０５で取り付けると共に、ワイヤ１６の途中には張線器１８を挿入する。この状態とした上で、張線器１８でワイヤ１５及びワイヤ１６を徐々に巻き上げていき、吊架線１及び渡し線４の張力をワイヤ１５及びワイヤ１６で支えるまでにする。次に、ワイヤ１７の一端をおもり１４を支持するフレームにくくり、もう一端をおもりに取り付ける。ワイヤ１７の間には張線器１９を介挿しておき、張線器１９でワイヤ１７巻き上げて、おもりの重さがワイヤ１１０を介して第２ヨーク６に伝わらない状態とする。この状態にしておいて第２ヨーク６を交換する作業を行う。   A conventional method for replacing the first second yoke will be described with reference to FIG. FIG. 2 is a side view of a state where the trolley line, the suspension line, and the auxiliary suspension line are replaced. Note that the reference numerals of the same members as those in FIG. 1 are omitted. In the replacement method of the second yoke, first, the work of hanging the suspension wire 1 and the connecting wire 4 with the wire 15 and the wire 16 is performed. One end of the wire 15 is attached to the electric pole 12, the other end is attached to the suspension wire 1 with the fixing metal fitting 105, and a wire 18 is inserted in the middle of the wire 15. Similarly, one end of the wire 16 is also attached to the utility pole 12, and the other end is attached to the connecting wire 4 with the fixing bracket 105, and a wire tensioner 18 is inserted in the middle of the wire 16. In this state, the wire 15 and the wire 16 are gradually wound up by the tensioner 18 until the tension of the suspension wire 1 and the connecting wire 4 is supported by the wire 15 and the wire 16. Next, one end of the wire 17 is made difficult for the frame that supports the weight 14, and the other end is attached to the weight. A tensioner 19 is inserted between the wires 17, and the wire 17 is wound up by the tensioner 19 so that the weight of the weight is not transmitted to the second yoke 6 via the wire 110. In this state, the work of replacing the second yoke 6 is performed.

次に従来の第２の第2ヨークの交換方法につき、図３を参照しつつ説明する。図３は、トロリ線、吊架線、補助吊架線を交換する際の様子を示す図である。図３の（ａ）は交換の様子を上面からみた要部概略図、また（ｂ）は交換の様子を側面から見た図である。なお、図1中と同一部材については参照符号の記載を省略しているものもある。第2のヨーク交換方法においては、第３ヨーク７に設けられている作業用穴８を利用して、吊架線１及び渡し線４のテンションを第３ヨーク７でつるようにする。作業としては、まず、ワイヤ２０の一端を第3ヨーク７の一つの作業穴８に取り付け、もう一端を吊架線１に固着金具１０５で取り付けると共に、ワイヤ２０の途中には張線器２２を挿入する。同様にして、ワイヤ２１の一端も第3ヨーク７の一つの作業穴８に取り付け、もう一端を渡し線４に固着金具１０５で取り付けると共に、ワイヤ２１の途中には張線器２２を挿入する。次に、張線器２２及び張線器２２でワイヤ２０及びワイヤ２１をそれぞれ巻き上げていき、吊架線１及び渡し線４のテンションを第３ヨーク７で支える。この状態にしておいて第２ヨーク６を交換する作業を行う。   Next, a conventional method for replacing the second second yoke will be described with reference to FIG. FIG. 3 is a diagram illustrating a state in which the trolley line, the suspension line, and the auxiliary suspension line are replaced. FIG. 3A is a schematic view of the main part of the state of replacement as viewed from above, and FIG. 3B is a view of the state of replacement as viewed from the side. Note that the reference numerals of the same members as those in FIG. 1 are omitted. In the second yoke replacement method, the tension of the suspension wire 1 and the connecting wire 4 is connected by the third yoke 7 using the working hole 8 provided in the third yoke 7. As the work, first, one end of the wire 20 is attached to one work hole 8 of the third yoke 7, and the other end is attached to the suspension wire 1 with the fixing metal 105, and the wire tensioner 22 is inserted in the middle of the wire 20. To do. Similarly, one end of the wire 21 is also attached to one working hole 8 of the third yoke 7, and the other end is attached to the connecting wire 4 with the fixing bracket 105, and a wire tensioner 22 is inserted in the middle of the wire 21. Next, the wire 20 and the wire 21 are wound up by the tensioner 22 and the tensioner 22, respectively, and the tension of the suspension wire 1 and the connecting wire 4 is supported by the third yoke 7. In this state, the work of replacing the second yoke 6 is performed.

従来の第1の第2ヨークの交換方法では、張線器１９でワイヤ１７巻き上げておもりをワイヤ１７でつった状態とすると、懸垂碍子９の重さが第2ヨーク６にかかることになる。従って、第2ヨーク６を交換する作業は、懸垂碍子９を支えつつ行わなければならない。懸垂碍子９を支えての作業は、多くの作業要員や作業時間を費やすこととなり作業効率が悪い、という問題があった。一方、従来の第２の第2ヨークの交換方法では、垂直に配置されている吊架線１及び渡し線４を、水平に配置されている第３ヨーク７の２つの作業穴で支持する状態となるため、吊架線１及び渡し線４はねじれた状態となる。このような状態となると、作業要員にとって作業は非常にやりづらく、この方法でも、複雑な作業となり多大な作業時間を要してしまう、という問題がある。   In the conventional method for exchanging the first second yoke, if the wire 17 is wound up by the wire 19 and the weight is held by the wire 17, the weight of the suspension lever 9 is applied to the second yoke 6. Therefore, the work of exchanging the second yoke 6 must be performed while supporting the suspension lever 9. The work of supporting the suspension lever 9 has a problem in that it requires a lot of work personnel and work time, resulting in poor work efficiency. On the other hand, in the second replacement method of the second second yoke, the vertically extending suspension wire 1 and the connecting wire 4 are supported by the two working holes of the third yoke 7 disposed horizontally. Therefore, the suspension wire 1 and the connecting wire 4 are in a twisted state. In such a state, it is very difficult for the work personnel to perform the work, and even this method has a problem that it becomes a complicated work and requires a lot of work time.

このような課題を解決するために、請求項１に係る発明は、電車のパンタグラフに給電するトロリ線及び該トロリ線を吊架する吊架線類を直接的に引き留めるヨークを取り替えるヨーク取替方法において、該ヨークを支持する２つの別のヨークの作業用穴を利用して、それぞれの別のヨークに第１取替用工具、第２取替用工具を取り付ける工程と、該第1取替用工具と、該トロリ線及び該吊架線類との間に第1ワイヤを張る工程と、該第1取替用工具と該第２取替用工具との間に第２ワイヤを張る工程と、該第1ワイヤを巻き取ることにより該ヨークの荷重を該第1ワイヤで負担させる工程と、該第２ワイヤを巻き取ることにより該第1取替用工具の荷重を該第２取替用工具でも負担させる工程と、該ヨークを交換する工程と、該第1ワイヤの荷重を再び、該ヨークで負担させ、該第1ワイヤ、該第2ワイヤ、該第1取替用工具、該第２取替用工具を取り外す工程と、からなることを特徴とする。   In order to solve such a problem, the invention according to claim 1 is a yoke replacement method for replacing a trolley wire that feeds power to a pantograph of a train and a yoke that directly holds a suspension line that suspends the trolley wire. Attaching the first replacement tool and the second replacement tool to each of the different yokes using the working holes of the two other yokes supporting the yoke, and the first replacement Stretching a first wire between the tool and the trolley wire and the suspension wires; stretching a second wire between the first replacement tool and the second replacement tool; A step of bearing the load of the yoke on the first wire by winding the first wire; and a load of the first replacement tool by winding the second wire. However, the process of burdening, the process of replacing the yoke, and the load of the first wire And the step of detaching the first wire, the second wire, the first replacement tool, and the second replacement tool, which is borne by the yoke.

また、請求項２に係る発明は、電車のパンタグラフに給電するトロリ線及び該トロリ線を吊架する吊架線類を直接的に引き留めるヨークを取り替えるためのヨーク取替用工具において、
該ヨークを支持する別のヨークの作業用穴と重なるボルト穴を有するベースプレート部と、
該ベースプレート部の中心付近から、該ベースプレート部に垂直に延設された延設部と、
該延設部に設けられた作業用穴と、からなることを特徴とする。
Further, the invention according to claim 2 is a yoke replacement tool for replacing a trolley wire that feeds power to a pantograph of a train and a yoke that directly holds a suspension line that suspends the trolley wire.
A base plate portion having a bolt hole overlapping with a working hole of another yoke supporting the yoke;
An extension portion extending perpendicularly to the base plate portion from the vicinity of the center of the base plate portion;
And a working hole provided in the extending portion.

本発明のヨーク取替用工具を用い、本発明の方法でヨークを取り替えると、ヨークにかかる荷重はほとんどない状態でヨークを交換することができる。したがって、従来のように、ヨークに懸垂碍子の荷重がかかっていたり、ヨークがねじれてしまったり、ということがないので、ヨークの取替作業を、従来より少ない作業員、短い時間で行うことができる。   If the yoke is replaced by the method of the present invention using the yoke replacement tool of the present invention, the yoke can be replaced with almost no load applied to the yoke. Therefore, unlike the conventional case, there is no load of the suspension lever on the yoke or the yoke is twisted, so that the replacement work of the yoke can be performed in a shorter time and with fewer workers than in the past. it can.

以下、本発明の実施の形態を図面を参照しつつ説明する。図４及び図5は、本発明の実施の形態に係るヨーク取替用工具の外観の斜視図である。図4の第１取替用工具３０は、金属製であり、２つのボルト穴３２を有するベースプレート部３１、ベースプレート部３１の中央部分から延設された延設部３５、延設部３５に設けられた作業用穴３３及び３４、ベースプレート部３１と延設部３５との間を補強する補強部３６からそれぞれ構成されている。ボルト３７、ナット３８を取り外すことによって、ベースプレート部３１間の間隙にヨークを受け入れることができるようになっており、ヨークをベースプレート部３１間の間隙に受け入れた際には、ヨークの作業用穴とベースプレート部３１のボルト穴３２の位置が一致するようになっている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 4 and 5 are perspective views of the appearance of the yoke replacement tool according to the embodiment of the present invention. The first replacement tool 30 in FIG. 4 is made of metal, and is provided in a base plate part 31 having two bolt holes 32, an extension part 35 extending from the center part of the base plate part 31, and an extension part 35 The working holes 33 and 34, and the reinforcing portion 36 that reinforces the space between the base plate portion 31 and the extending portion 35, respectively. By removing the bolt 37 and the nut 38, the yoke can be received in the gap between the base plate portions 31, and when the yoke is received in the gap between the base plate portions 31, the working hole of the yoke The positions of the bolt holes 32 of the base plate portion 31 are matched.

図5の第２取替用工具４０も第１取替用工具３０とほぼ同様の構成であり、図5の第２取替用工具４０は、２つのボルト穴４２を有するベースプレート部４１、ベースプレート部４１の中央部分から延設された延設部４５、延設部４５に設けられた作業用穴４３及び４４、ベースプレート部４１と延設部４５との間を補強する補強部４６からそれぞれ成る。ボルト４７、ナット４８を取り外すことによって、ベースプレート部４１間の間隙にヨークを受け入れることができるようになっており、ヨークをベースプレート部４１間の間隙に受け入れた際には、ヨークの作業用穴とベースプレート部４１のボルト穴４２の位置が一致するようになっている。   The second replacement tool 40 in FIG. 5 has substantially the same configuration as the first replacement tool 30, and the second replacement tool 40 in FIG. 5 includes a base plate part 41 having two bolt holes 42, a base plate The extending portion 45 extends from the central portion of the portion 41, the working holes 43 and 44 provided in the extending portion 45, and the reinforcing portion 46 that reinforces the space between the base plate portion 41 and the extending portion 45. . By removing the bolt 47 and the nut 48, the yoke can be received in the gap between the base plate portions 41. When the yoke is received in the gap between the base plate portions 41, the yoke working holes and The positions of the bolt holes 42 in the base plate portion 41 are matched.

次に、第１取替用工具３０及び第２取替用工具４０を用いてどのようにヨークの交換作業を行うかにつき図６を参照しつつ説明する。図６は、本発明の実施の形態に係るヨーク取替用工具を用いてのヨーク取替方法を説明するための図である。図１の（ａ）はヨーク取替の様子を上面からみた要部概略図、また（ｂ）はヨーク取替の様子を側面から見た図である。図1中と同一部材については参照符号の記載を省略しているものもある。   Next, how the yoke replacement operation is performed using the first replacement tool 30 and the second replacement tool 40 will be described with reference to FIG. FIG. 6 is a view for explaining a yoke replacement method using the yoke replacement tool according to the embodiment of the present invention. FIG. 1A is a schematic view of the main part of the state of yoke replacement as viewed from above, and FIG. 1B is a diagram of the state of yoke replacement as viewed from the side. For the same members as in FIG. 1, some reference numerals are omitted.

本発明の実施の形態に係るヨーク取替用工具を用いてのヨーク取替方法で第2ヨーク６を交換する際には、概略以下のような作業手順となる。（１）第１取替用工具３０及び第２取替用工具４０の取り付け、（２）第１取替用工具３０及び第２取替用工具４０にて吊架線１及び渡し線４のテンションを負担し、（３）第2ヨーク６の交換作業、（４）第１取替用工具３０及び第２取替用工具４０の取り外し、という作業の流れとなる。以下、順々に説明する。   When the second yoke 6 is replaced by the yoke replacement method using the yoke replacement tool according to the embodiment of the present invention, the operation procedure is roughly as follows. (1) Attaching the first replacement tool 30 and the second replacement tool 40, (2) Tension of the suspension wire 1 and the connecting wire 4 with the first replacement tool 30 and the second replacement tool 40 And (3) the replacement work of the second yoke 6 and (4) the removal of the first replacement tool 30 and the second replacement tool 40. Hereinafter, this will be described in order.

まず、第１取替用工具３０及び第２取替用工具４０を、それぞれ第3ヨーク７及び第５ヨーク１１に取り付ける作業を行う。図４に示される第１取替用工具３０のボルト３７及びナット３８を取り外し、ベースプレート部３１間の間隙に第3ヨーク７を受け入れ、ベースプレート部３１のボルト穴３２と第３ヨーク７の作業用穴８との位置合わせを行い、合わせた穴にボルト３７を通しナット３８で締め付ける。   First, an operation of attaching the first replacement tool 30 and the second replacement tool 40 to the third yoke 7 and the fifth yoke 11 is performed. The bolts 37 and nuts 38 of the first replacement tool 30 shown in FIG. 4 are removed, the third yoke 7 is received in the gap between the base plate portions 31, and the bolt holes 32 of the base plate portion 31 and the third yoke 7 are used for work. Alignment with the hole 8 is performed, and a bolt 37 is passed through the aligned hole and tightened with a nut 38.

同様にして、図５に示される第２取替用工具４０のボルト４７及びナット４８を取り外しベースプレート部４１間の間隙に第3ヨーク７を受け入れ、ベースプレート部４１のボルト穴４２とヨーク１１の作業用穴８との位置合わせを行い、合わせた穴にボルト４７を通しナット４８で締め付ける。   Similarly, the bolts 47 and nuts 48 of the second replacement tool 40 shown in FIG. 5 are removed, and the third yoke 7 is received in the gap between the base plate portions 41, and the bolt holes 42 of the base plate portion 41 and the work of the yoke 11 are performed. Alignment with the hole 8 is performed, and a bolt 47 is passed through the aligned hole and tightened with a nut 48.

次に、ワイヤ５０の一端を第１取替用工具３０の作業用穴３４を利用して第１取替用工具３０に固定し、もう一端を吊架線１に固着金具１０５で取り付けると共に、ワイヤ５０の途中に張線器５３を挿入する。同様にして、ワイヤ５１の一端も第１取替用工具３０の作業用穴３４を利用して第１取替用工具３０に固定し、もう一端を渡し線４に固着金具１０５で取り付けると共に、ワイヤ５１の途中には張線器５３を挿入する。   Next, one end of the wire 50 is fixed to the first replacement tool 30 using the working hole 34 of the first replacement tool 30, and the other end is attached to the suspension wire 1 with the fixing metal 105, and the wire In the middle of 50, a tensioner 53 is inserted. Similarly, one end of the wire 51 is fixed to the first replacement tool 30 using the working hole 34 of the first replacement tool 30 and the other end is attached to the connecting wire 4 with the fixing metal 105, A tensioner 53 is inserted in the middle of the wire 51.

次に、第１取替用工具３０と第２取替用工具４０とを連結する。ワイヤ５４の一端を第１取替用工具３０の作業用穴３３を利用して第１取替用工具３０に固定し、もう一端を第２取替用工具４０の作業用穴４４を利用して第２取替用工具４０に固定すると共に、ワイヤ５４の途中に張線器５６を挿入する。同様にして、ワイヤ５５の一端を第１取替用工具３０の作業用穴３３を利用して第１取替用工具３０に固定し、もう一端を第２取替用工具４０の作業用穴４４を利用して第２取替用工具４０に固定すると共に、ワイヤ５５の途中に張線器５６を挿入する。   Next, the first replacement tool 30 and the second replacement tool 40 are connected. One end of the wire 54 is fixed to the first replacement tool 30 using the work hole 33 of the first replacement tool 30, and the other end is used to use the work hole 44 of the second replacement tool 40. Then, the wire tensioner 56 is inserted in the middle of the wire 54 while being fixed to the second replacement tool 40. Similarly, one end of the wire 55 is fixed to the first replacement tool 30 using the work hole 33 of the first replacement tool 30, and the other end is fixed to the work hole of the second replacement tool 40. While fixing to the 2nd replacement tool 40 using 44, the wire tensioner 56 is inserted in the middle of the wire 55. FIG.

この状態とした上で、張線器５３でワイヤ５０及びワイヤ５１を徐々に巻き上げていき、吊架線１及び渡し線４の張力を、第１取替用工具３０で支えるまでにする。さらに、張線器５６でワイヤ５４及びワイヤ５５を徐々に巻き上げていき、第１取替用工具３０にかかる吊架線１及び渡し線４の張力を、第２取替用工具４０でも負担するようにして支える。なお、第２取替用工具４０は、あくまでバックアップ的に第１取替用工具３０にかかる荷重を支える役割を果たすものであり、必ずしも必須の構成要件ではない。   In this state, the wire 50 and the wire 51 are gradually wound up by the tensioner 53 until the tension of the suspension wire 1 and the connecting wire 4 is supported by the first replacement tool 30. Further, the wire 54 and the wire 55 are gradually wound up by the tensioner 56 so that the tension of the suspension wire 1 and the connecting wire 4 applied to the first replacement tool 30 is also borne by the second replacement tool 40. And support. Note that the second replacement tool 40 plays a role of supporting the load applied to the first replacement tool 30 in a backup manner, and is not necessarily an essential component.

以上のような一連の作業工程を経た上で、古い第2ヨーク６から新しい第2ヨーク６に交換し、再び張線器５３及び張線器５６を緩め、再び、吊架線１及び渡し線４にテンションをかけるようにしてから、第１取替用工具３０、第２取替用工具４０、ワイヤ５０、ワイヤ５１、張線器５３、ワイヤ５４、ワイヤ５６、張線器５６を取り外す。本発明のヨーク取替用工具を用い、本発明の方法で第2ヨーク６を取り替えると、第2ヨーク６にかかる荷重はほとんどない状態で第2ヨーク６を交換することができる。従来のように、第2ヨーク６に懸垂碍子９の荷重がかかっていたり、第2ヨーク６がねじれてしまったり、ということがないので、第2ヨーク６の取替作業を、従来より少ない作業員、短い時間で行うことができる。
After passing through a series of work steps as described above, the old second yoke 6 is replaced with the new second yoke 6, the tensioner 53 and the tensioner 56 are loosened again, and the suspension line 1 and the connecting line 4 are again formed. After the tension is applied, the first replacement tool 30, the second replacement tool 40, the wire 50, the wire 51, the wire tensioner 53, the wire 54, the wire 56, and the wire tensioner 56 are removed. When the second yoke 6 is replaced by the method of the present invention using the yoke replacement tool of the present invention, the second yoke 6 can be replaced with almost no load applied to the second yoke 6. Since the load of the suspension lever 9 is not applied to the second yoke 6 and the second yoke 6 is not twisted as in the prior art, the replacement work of the second yoke 6 is less than the conventional work. It can be done in a short time.

トロリ線、吊架線、補助吊架線にテンションをかけるための電柱部における構造を示す図である。It is a figure which shows the structure in the utility pole part for applying tension to a trolley line, a suspension line, and an auxiliary suspension line. トロリ線、吊架線、補助吊架線を交換する際の様子を側面から見た図である。It is the figure which looked at the mode at the time of exchanging a trolley line, a suspension line, and an auxiliary suspension line from the side. トロリ線、吊架線、補助吊架線を交換する際の様子を示す図である。It is a figure which shows the mode at the time of replacing | exchanging a trolley line, a suspension line, and an auxiliary | assistant suspension line. 本発明の実施の形態に係るヨーク取替用工具の外観の斜視図である。It is a perspective view of the appearance of the yoke replacement tool according to the embodiment of the present invention. 本発明の実施の形態に係るヨーク取替用工具の外観の斜視図である。It is a perspective view of the appearance of the yoke replacement tool according to the embodiment of the present invention. 本発明の実施の形態に係るヨーク取替用工具を用いてのヨーク取替方法を説明するための図である。It is a figure for demonstrating the yoke replacement method using the yoke replacement tool which concerns on embodiment of this invention.

符号の説明Explanation of symbols

１・・・吊架線、２・・・補助吊架線、３・・・トロリ線、４・・・渡し線、５・・・第１ヨーク、６・・・第２ヨーク、７・・・第３ヨーク、８・・・作業用穴、９・・・懸垂碍子、１０・・・第４ヨーク、１１・・・第５ヨーク、１２・・・電柱、１３・・・滑車、１４・・・おもり、１５、１６、１７・・・ワイヤ、１８、１９・・・張線器、２０、２１・・・ワイヤ、２２・・・張線器、３０・・・第１取替用工具、３１・・・ベースプレート部、３２・・・ボルト穴、３３、３４・・・作業用穴、３５・・・延設部、３６・・・補強部、３７・・・ボルト、３８・・・ナット、４０・・・第２取替用工具、４１・・・ベースプレート部、４２・・・ボルト穴、４３、４４・・・作業用穴、４５・・・延設部、４６・・・補強部、４７・・・ボルト、４８・・・ナット、５０、５１・・・ワイヤ、５３・・・張線器、５４、５５・・・ワイヤ、５６・・・張線器、１０１・・・ワイヤーターンバックル、１０２・・・引き留め金具、１０３・・・Ｕクレビス、１０５・・・固着金具、１０６、１０７、１０８・・・連結金具、１１０・・・ワイヤ
DESCRIPTION OF SYMBOLS 1 ... Suspension line, 2 ... Auxiliary suspension line, 3 ... Trolley line, 4 ... Transfer line, 5 ... 1st yoke, 6 ... 2nd yoke, 7 ... 1st 3 yoke, 8 ... work hole, 9 ... suspension lever, 10 ... fourth yoke, 11 ... fifth yoke, 12 ... utility pole, 13 ... pulley, 14 ... Weight, 15, 16, 17 ... wire, 18, 19 ... wire tensioner, 20, 21 ... wire, 22 ... wire tensioner, 30 ... first replacement tool, 31 ... Base plate part, 32 ... Bolt hole, 33, 34 ... Working hole, 35 ... Extension part, 36 ... Reinforcement part, 37 ... Bolt, 38 ... Nut, 40 ... 2nd replacement tool, 41 ... Base plate part, 42 ... Bolt hole, 43, 44 ... Work hole, 45 ... Extension part, 46 ... Reinforcement part, 4 ... Bolt, 48 ... Nut, 50, 51 ... Wire, 53 ... Tensioner, 54,55 ... Wire, 56 ... Tensioner, 101 ... Wire turnbuckle , 102 ... Clasps, 103 ... U clevis, 105 ... Fixing brackets, 106, 107, 108 ... Connecting brackets, 110 ... Wire

Claims (2)

電車のパンタグラフに給電するトロリ線及び該トロリ線を吊架する吊架線類を直接的に引き留めるヨークを取り替えるヨーク取替方法において、
該ヨークを支持する２つの別のヨークの作業用穴を利用して、それぞれの別のヨークに第１取替用工具、第２取替用工具を取り付ける工程と、
該第1取替用工具と、該トロリ線及び該吊架線類との間に第1ワイヤを張る工程と、
該第1取替用工具と該第２取替用工具との間に第２ワイヤを張る工程と、
該第1ワイヤを巻き取ることにより該ヨークの荷重を該第1ワイヤで負担させる工程と、
該第２ワイヤを巻き取ることにより該第1取替用工具の荷重を該第２取替用工具でも負担させる工程と、
該ヨークを交換する工程と、
該第1ワイヤの荷重を再び、該ヨークで負担させ、該第1ワイヤ、該第2ワイヤ、該第1取替用工具、該第２取替用工具を取り外す工程と、からなることを特徴とするヨーク取替方法。 In a yoke replacement method for replacing a trolley wire that feeds power to a pantograph of a train and a yoke that directly holds a trolley wire that suspends the trolley wire,
Attaching the first replacement tool and the second replacement tool to each of the other yokes using the working holes of the two other yokes supporting the yoke;
Stretching the first wire between the first replacement tool, the trolley wire and the suspension wires,
Stretching a second wire between the first replacement tool and the second replacement tool;
Bearing the load of the yoke with the first wire by winding the first wire;
The step of causing the load of the first replacement tool to be borne by the second replacement tool by winding the second wire;
Replacing the yoke;
The load of the first wire is again borne by the yoke, and the first wire, the second wire, the first replacement tool, and the second replacement tool are removed. Yoke replacement method. 電車のパンタグラフに給電するトロリ線及び該トロリ線を吊架する吊架線類を直接的に引き留めるヨークを取り替えるためのヨーク取替用工具において、
該ヨークを支持する別のヨークの作業用穴と重なるボルト穴を有するベースプレート部と、
該ベースプレート部の中心付近から、該ベースプレート部に垂直に延設された延設部と、
該延設部に設けられた作業用穴と、からなることを特徴とするヨーク取替用工具。 In a yoke replacement tool for replacing a trolley wire that feeds power to a pantograph of a train and a yoke that directly holds a trolley wire that suspends the trolley wire,
A base plate portion having a bolt hole overlapping with a working hole of another yoke supporting the yoke;
An extension portion extending perpendicularly to the base plate portion from the vicinity of the center of the base plate portion;
A yoke replacement tool comprising: a working hole provided in the extending portion.
JP2005320635A 2005-11-04 2005-11-04 Yoke replacement method and yoke replacement tool Expired - Fee Related JP4632308B2 (en)

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JP5489226B2 (en) * 2010-07-06 2014-05-14 三和テッキ株式会社 Relay fitting for connecting section insulator of dead section, and section insulator replacement apparatus and method used therefor
JP5897398B2 (en) * 2012-04-27 2016-03-30 日本発條株式会社 Tension balancer for overhead wires
JP6493965B2 (en) * 2015-02-12 2019-04-03 日本カタン株式会社 Tensile device replacement tool
CN108909533B (en) * 2018-05-22 2021-08-10 中铁建电气化局集团第三工程有限公司 Construction method for integrally replacing existing electrified railway contact net crossover and sectional insulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06144088A (en) * 1992-11-12 1994-05-24 Dengiyou:Kk Tension measuring device for electric railcar line
JPH06227295A (en) * 1993-01-29 1994-08-16 East Japan Railway Co Safety device of tension balancer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06144088A (en) * 1992-11-12 1994-05-24 Dengiyou:Kk Tension measuring device for electric railcar line
JPH06227295A (en) * 1993-01-29 1994-08-16 East Japan Railway Co Safety device of tension balancer

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