JP2016141299A - Trolley wire support structure and connector lead wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trolley wire support structure having fatigue resistance, which is capable of suppressing the strain of a connector lead wire with respect to the displacement and the vibration of a trolley wire by separately providing the connector lead wire and a hanger and integrating them at a given place, and the connector lead wire.SOLUTION: A trolley wire support structure includes a hanger 20 provided between a suspension wire M and a trolley wire T to support the load of the trolley wire T on the suspension wire M, a connector lead wire 23 provided between the suspension wire M and the trolley wire T to electrically connect them, and a connection member 26 for mechanically connecting the connector lead wire 23 to the hanger 20. The connector lead wire 23 is formed longer than the hanger 20, and the connection member 26 is connected to the connector lead wire 23 at the middle part of the hanger 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a trolley wire support structure for suspending a trolley wire from a suspension wire and a connector lead wire applied to the trolley wire support structure, and more particularly to a connector lead for electrically connecting a suspension wire and a trolley wire. The present invention relates to a technique capable of suppressing distortion generated in a wire.

A connector fitting shown in Non-Patent Document 1 is known as a connector for electrically connecting a suspended wire and a trolley wire.
As shown in FIGS. 6A and 6B, the connector fitting 1 includes a connector lamp 2 that is electrically connected to the suspension wire M, and a connection member 3 that is electrically connected to the trolley wire T. The lead wire 4 is arranged between the two, and the upper portion of the lead wire 4 is formed in a loop shape (this loop portion is indicated by reference numeral 5).

The end portion 4 </ b> A passing through the loop portion 5 of the lead wire 4 is connected to the intermediate portion of the lead wire 4 via a bind member 6. The upper portion of the lead wire 4 is electrically connected to the suspension wire M by two connector lamps 2.
The lead wire 4 is formed to have a certain rigidity and elasticity in order to hang the trolley wire T on the suspension wire M.

By the way, in the connector metal fitting 1 shown in the said nonpatent literature 1, whenever the pantograph of a train passes, as shown in FIG. 6 (A), the trolley line T vibrates and the suspended line M of the trolley line T is shown. Relative displacement occurs in the direction of the arrow ab between the lead wire 4 and the lead wire 4 is fatigued.
In addition, in the connector fitting shown in Non-Patent Document 1, the vibration frequency coincides with the vibration frequency generated when the train passes, and as shown in FIG. 6B by the arrow cd direction. A resonance in the left-right direction along the sleepers may occur, causing a large shake.
However, although the connector metal fitting of the said nonpatent literature 1 is what electrically connects between the lines of a train line, such as the trolley wire T and the suspension line M, until now, the distortion | strain of the lead wire 4 by an actual vibration is increased. Lack of consideration to have sufficient strength considering the mechanism.

On the other hand, Patent Document 1 is provided in association with Non-Patent Document 1 described above.
As shown in FIG. 7, a connecting hanger ear for a train line shown in Patent Document 1 includes a hanger bar 12 having a loop-shaped hook portion 11 for hanging on a suspension line M on the upper portion, and the hanger bar. An ear 13 that is coupled to the lower end of 12 and grips the trolley wire T; and a conductor 14 that is interposed between the suspension wire M and the sleeve 12A of the hanger bar 12 and that is electrically connected while allowing the hanger bar 12 to be displaced. It has.
The conductor 14 has an upper end electrically connected to the suspension line M via the clamp 15 and a lower end connected to the sleeve 12A of the hanger bar 12, and is similarly connected in the sleeve 12A. The trolley line T is reached via the lower conductor portion 12B of the hanger bar 12.

Moreover, in the connecting hanger ear 10 for the above-mentioned train line, the conductor 14 is composed of a copper stranded wire. When the conductor 14 is attached to the suspension line M, the U-shaped slack is formed from the suspension line M to the hanger bar 12. It is arranged with a margin so as to form.
Thus, the conductor 14 flexibly follows the hanger bar 12, so that the behavior of the hanger bar 12 is not hindered, the conductor itself is not subjected to physical damage, and is not easily deteriorated by fatigue. .

Japanese Patent Laying-Open No. 2005-67568

Product Guide for Train Lines (8th Revised March 15, 2004) Page 80 Sanwa Tecchi Co., Ltd.

  However, although the conductor 14 shown in Patent Document 1 has some slack and avoids fatigue deterioration, the conductor 14 passes through the lower conductor portion 12B located at the lower portion of the hanger bar 12. Thus, there is a problem that when the lower conductor portion 12B is damaged, an electrical disconnection between the suspension wire M and the trolley wire T occurs.

  The present invention has been made in view of the above circumstances, and by providing the connector lead wire separately from the hanger and integrating it at some locations, the distortion of the connector lead wire against displacement and vibration of the trolley wire. An object of the present invention is to provide a trolley wire support structure with reduced fatigue resistance and a connector lead wire applied to the trolley wire support structure.

In order to solve the above problems, the present invention proposes the following means.
The present invention provides a hanger provided between a suspension wire and a trolley wire to support the load of the trolley wire on the suspension wire, and a connector provided between the suspension wire and the trolley wire and electrically connected to each other A lead wire and a connecting member for mechanically connecting the connector lead wire to the hanger, wherein the connector lead wire is formed longer than the length of the hanger, and the connecting member is provided at an intermediate portion of the hanger. And connected to the connector lead wire.

In the trolley wire support structure of the present invention, the hanger for supporting the load of the trolley wire on the suspension wire is provided separately from the connector lead wire for electrically connecting the suspension wire and the trolley wire to each other. The load applied to the trolley wire can be reduced.
Further, in the trolley wire support structure of the present invention, the connector lead wire is formed longer than the length of the hanger, and the connecting member for connecting to the connector lead wire is provided at the middle portion of the hanger. Thus, distortion generated in the connector lead wire against displacement and vibration of the trolley wire can be suppressed, and disconnection due to fatigue accumulation of the connector lead wire can be prevented in advance.
Furthermore, in the trolley wire support structure of the present invention, the connector lead wire is formed longer than the length of the hanger, so the connector located between the connecting member located in the middle of the hanger, the suspension wire and the trolley wire. It is possible to cause slack in the lead wire. By setting a predetermined length of slack in the connector lead wire, resonance of the connector lead wire due to displacement and vibration of the trolley wire can be suppressed, and fatigue resistance can be improved.

It is a front view which shows the trolley wire support structure which concerns on embodiment of this invention, Comprising: (A) is a front view, (B) is a perspective view of (A). It is a front view which shows the modification 1 of FIG. It is a front view which shows the modification 2 of FIG. It is a front view which shows the modification 3 of FIG. It is a front view which shows the modification 4 of FIG. It is a front view which shows the trolley wire support structure which concerns on a nonpatent literature 1, Comprising: (A) is a front view, (B) is a perspective view of (A). It is a front view which shows the trolley wire support structure which concerns on patent document 1.

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1A is a front view showing a trolley wire support structure 100 according to this embodiment, and FIG. 1B is a perspective view of FIG.

In FIGS. 1A and 1B, reference numeral 20 denotes a hanger provided between the suspension line M and the trolley line T, and supports the load of the trolley line T on the suspension line M. .
The hanger 20 is composed of a rod-like rigid body made of phosphor bronze having high mechanical strength and insulation, and is arranged in a vertical direction between the suspension line M and the trolley line T, and The suspension line M and the trolley line T are connected in the shortest distance.

A hook portion 21 is provided at the upper end of the hanger 20 and connected to the suspension line M to hook the hanger 20 on the suspension line M and allow displacement in the vertical direction (arrow ab direction). It has been.
The hook portion 21 is formed in a vertically long loop shape so as to surround the suspension line M when viewed in the axial direction of the suspension line M in a state of being attached to the suspension line M.
Further, an ear 22 for gripping and supporting the trolley wire T is provided at the lower end of the hanger 20.

Between the suspension wire M and the trolley wire T, a connector lead wire 23 for electrically connecting the suspension wire M and the trolley wire T to each other is provided.
The connector lead wire 23 is formed of a copper stranded wire, is formed longer than the length of the hanger 20 and is provided separately from the hanger 20, and the upper end portion of the connector lead wire 23 is suspended by the clamp 24. The lower end portion is electrically connected to the trolley wire T by the clamp 25.

The connector lead wire 23 is provided with a connecting member 26 for mechanically connecting the connector lead wire 23 to the hanger 20.
The connecting member 26 is connected to the connector lead wire 23 at an intermediate portion of the hanger 20, and forms a cylindrical sleeve 26 </ b> A so as to surround the hanger 20 and the connector lead wire 23 together. Yes.
In addition, two sets of connecting members 26 are provided at intervals between the connector lead wire 23 and the hanger 20 (in the vertical direction), and a section (between these connecting members 26 ( The connector lead wire 23 and the hanger 20 in FIG. 27 are in contact with each other and arranged linearly.

The connector lead wire 23 located between the connecting member 26 located in the middle portion of the hanger 20 and the suspension wire M and the trolley wire T is formed with slack portions 23A and 23B having a slack in the connector lead wire 23. ing.
Further, in the slack portions 23A and 23B, the slack portion 23A of the connector lead wire 23 located between the connecting member 26 located in the middle portion of the hanger 20 and the suspension wire M is formed in an S shape, The slack portion 23B of the connector lead wire 23 located between the connecting member 26 located at the intermediate portion of the hanger 20 and the trolley wire T is formed in an L shape as a whole so as to gradually approach the trolley wire T. ing.
These slack portions 23A and 23B are set to a predetermined length to suppress resonance of the connector lead wire 23 due to displacement and vibration of the trolley wire T.

  As described in detail above, in the trolley wire support structure 100 according to the present embodiment, the hanger 20 that supports the load of the trolley wire T on the suspension wire M is electrically connected to the suspension wire M and the trolley wire T. By providing it separately from the connector lead wire 23 connected to the connector lead wire 23, the load load of the trolley wire T applied to the connector lead wire 23 can be reduced.

  Further, in the trolley wire support structure 100 according to the present embodiment, the connector lead wire 23 is formed longer than the length of the hanger 20, and a connecting member 26 that is connected to the connector lead wire 23 at the middle portion of the hanger 20 is provided. Therefore, the connector lead wire suppresses the vertical displacement of the trolley wire T (displacement in the direction of arrows ab) and vibration along the sleeper direction (vibration in the direction of arrows cd) at the site of the connecting member 26. 23 can be suppressed, and disconnection due to fatigue accumulation of the connector lead wire 23 can be prevented in advance.

  Further, in the trolley wire support structure 100 according to the present embodiment, the connector lead wire 23 is formed longer than the length of the hanger 20, so that the connecting member 26, the suspension wire M, and the trolley located at the intermediate portion of the hanger 20. The slack portions 23A and 23B can be formed on the connector lead wire 23 positioned between the wire T and the wire T. Then, by setting the slack portions 23A and 23B of the connector lead wire 23 to a predetermined length, resonance of the connector lead wire 23 due to displacement and vibration of the trolley wire T can be suppressed, and fatigue resistance can be improved. .

Further, in the trolley wire support structure 100 according to the present embodiment, the length of the connector lead wire 23 that can vibrate is shortened as a whole, so that the resonance frequency can be made larger than that of the conventional one. This makes it difficult for resonance to occur, and can suppress distortion in the connector lead wire 23.
Further, in the trolley wire support structure 100 according to the present embodiment, even if the connector lead wire 23 is broken by the clamp 24 of the suspension wire M, the connector lead wire 23 is fixed to the connecting member 26 at the intermediate portion. Therefore, the connector lead wire 23 does not hang down below the lower surface of the trolley wire T, and high safety is ensured.
Further, in the trolley wire support structure 100 according to the present embodiment, the number of parts is almost the same as that of the conventional product, and no special work is involved in the mounting, so that an effect that the cost more than the conventional cost does not occur is produced.

(Modification 1)
In the embodiment shown in FIG. 1, the intermediate part of the hanger 20 and the intermediate part of the connector lead wire 23 are connected by two connecting members 26 arranged at intervals in the vertical direction (arrow ab direction). I tried to do it. However, the present invention is not limited to this, and when the distance between the suspension wire M and the trolley wire T is smaller than the standard, the hanger 20 and the connector lead wire 23 are connected by one connecting member 26 as shown in FIG. May be.
That is, as shown in FIG. 2 of the first modification, the hanger 20 and the connector lead wire 23 corresponding to the distance between the suspension wire M and the trolley wire T can be installed by appropriately changing the number of the connecting members 26. It becomes. Note that the number of the connecting members 26 is not limited to one or two, and may be three or more.

(Modification 2)
In the embodiment shown in FIG. 1, the intermediate part of the hanger 20 and the intermediate part of the connector lead wire 23 are connected by two connecting members 26 arranged at intervals in the vertical direction (arrow ab direction). I tried to do it.
However, the present invention is not limited to this, and the hanger 20 and the connector lead wire 23 may be connected by a single connecting member 30 that is formed long as shown in FIG.
Specifically, the connecting member 30 shown in FIG. 3 is constituted by a long and cylindrical sleeve 30A, and the connector lead wire 23 and the hanger 20 are brought into contact with each other in the cylindrical sleeve 30A and are linear. To place.
Thereby, in the trolley wire support structure 100 shown in FIG. 3 of the second modification, the displacement of the trolley wire T (displacement in the direction of the arrow ab) is caused by the connecting member 30 formed by the long and cylindrical sleeve 30A. ) And vibration (vibration in the direction of arrow cd) can be effectively suppressed, and disconnection due to fatigue accumulation of the connector lead 23 can be prevented.

(Modification 3)
In the embodiment shown in FIG. 1, the slack portion 23 </ b> A of the connector lead wire 23 positioned between the connecting member 26 positioned at the intermediate portion of the hanger 20 and the suspension wire M is formed in an S shape.
However, the present invention is not limited to this. As shown in FIG. 4, the slack portion 23 </ b> C of the connector lead wire 23 positioned between the connecting member 26 positioned at the intermediate portion of the hanger 20 and the suspension wire M is formed into an S shape. You may form in a coil shape longer than a shape.
Then, by appropriately selecting the length of the slack portion 23A / 23C of the connector lead wire 23 located between the connecting member 26 and the suspension line M, the vibration of the trolley wire T (in the direction of the arrow cd). The vibration of the connector lead wire 23 caused by the vibration of the trolley wire T can be optimally adjusted to effectively suppress the resonance of the connector lead wire 23 caused by the vibration of the trolley wire T.

(Modification 4)
In the embodiment shown in FIG. 1, the slack portion 23 </ b> A of the connector lead wire 23 positioned between the connecting member 26 positioned at the intermediate portion of the hanger 20 and the suspension wire M is formed in an S shape.
At this time, as shown in FIG. 5, the slack portion (indicated by reference numeral 23A ') of the connector lead wire 23 located between the connecting member 26 located in the middle portion of the hanger 20 and the suspension wire M is moved upward. You may connect to the suspension line M from the side. Furthermore, the end portion of the connector lead wire 23 that has passed through the hook portion 21 of the hanger 20 may be connected to the suspension wire M from above.
Then, by appropriately selecting a method of routing the slack portion 23A / 23A ′ of the connector lead wire 23 between the connecting member 26 and the suspension wire M, vibration of the trolley wire T (in the direction of the arrow cd) It is possible to optimally adjust the vibration frequency of the connector lead wire 23 caused by vibration) and effectively suppress the resonance of the connector lead wire 23 caused by vibration of the trolley wire T.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  The present invention relates to a trolley wire support structure for suspending a trolley wire from a suspension wire and a connector lead wire applied to the trolley wire support structure, and more particularly to a connector lead for electrically connecting a suspension wire and a trolley wire. The present invention relates to a technique capable of suppressing distortion generated in a wire.

20 hanger 23 connector lead wire 23A slack portion 23A 'slack portion 23B slack portion 23C slack portion 26 connecting means 26A sleeve 30 connecting means 30A sleeve 100 trolley wire support structure M suspended wire T trolley wire

Claims (11)

A hanger provided between the suspension wire and the trolley wire to support the load of the trolley wire on the suspension wire;
Connector lead wires provided between the suspension wire and the trolley wire and electrically connected to each other;
A connecting member for mechanically connecting the connector lead wire to the hanger;
The connector lead wire is formed longer than the length of the hanger,
The trolley wire support structure, wherein the connecting member is connected to the connector lead wire at an intermediate portion of the hanger.   The trolley wire support structure according to claim 1, wherein the hanger is formed of a rigid body.   The hook part for allowing the displacement to an up-down direction is provided in the connection location with the said suspension wire above the said hanger, The any one of Claim 1 or 2 characterized by the above-mentioned. Trolley wire support structure.   4. The connector lead wire positioned between the connecting member and the suspension wire and the trolley wire is formed with a slack portion having a slack in the connector lead wire. The trolley wire support structure according to claim 1.   The trolley wire support structure according to claim 4, wherein a slack portion of the connector lead wire positioned between the connecting member and the suspension wire is formed in an S shape.   The trolley wire support structure according to claim 4, wherein a slack portion of the connector lead wire located between the connecting member and the suspension wire is formed in a coil shape.   The slack portion of the connector lead wire located between the connecting member and the trolley wire is formed in an L shape as a whole so as to gradually approach the trolley wire. The trolley wire support structure described.   The trolley wire support structure according to claim 1, wherein a plurality of connection members for connecting the connector lead wire to the hanger are provided.   The trolley wire support structure according to claim 8, wherein the connector lead wire and the hanger located between the plurality of connecting members are in contact with each other and arranged linearly.   The said connection member is formed in an elongate sleeve shape in order to make the said connector lead wire and the said hanger contact, and to arrange | position linearly, The any one of Claims 1-7 characterized by the above-mentioned. Trolley wire support structure. A connector lead wire that is provided in a member separate from the hanger that supports the load of the trolley wire on the suspension wire, and electrically connects the suspension wire and the trolley wire,
A connector lead wire, characterized in that the entire length is longer than the length of the hanger, and a connecting member connected to the intermediate portion of the hanger is provided in the middle.

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