JP4037173B2 - Trolley wire horizontal support device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support device for horizontally holding the position of a trolley line on the main line side and the position of the trolley line on the cross line side at the rail branching point of the main line (main line) and the cross line on the train line. is there.
[0002]
[Prior art]
At the branch point of the rail on the train line, the main line side trolley line and the crossing line side trolley line are installed so as to intersect. Both trolley lines are individually hung with a hanger under the suspension line. In order to make the pantograph pass smoothly, it is desirable that both trolley lines are always installed without any height difference.
However, this is because the main line side trolley wire (suspended wire) and crossover side trolley wire (suspended wire) have different retention spans, the automatic adjustment device is not used, or it is used only on one side. As the temperature changes, a difference in height occurs between the two trolley wires, which may hinder the passage of the pantograph. In order to prevent this, frequent maintenance inspections and repairs have conventionally been performed.
[0003]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a novel support device for a trolley wire that can horizontally maintain the position of the trolley wire on the main line side and the position of the trolley wire on the crossover side.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, a support arm 2 that couples a main line-side suspension line M1 and a crossover-line-side suspension line M2, a main-line-side trolley line T1, and a cross-line-side trolley line T2 And a pair of suspension rods of equal length, the upper end of which is pivotally supported at the center of the support arm 2 and the lower end thereof is pivotally supported at one end side or the other end side of the connection arm 3, respectively. 4 to constitute a horizontal support device 1 for the trolley wire.
Since the two suspension rods 4 and the connecting arm 3 form an isosceles triangle, the apex thereof is suspended at the center of the support arm 2, and the two trolley wires T1 and T2 are supported at both ends of the bottom. Even if a height difference occurs between the two suspension lines M1 and M2 and the support arm 2 is inclined with respect to the horizontal, the two trolley lines T1 and T2 are slightly moved up and down while maintaining the horizontal position of each other. It is.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the horizontal support device, FIG. 2 is an operation schematic diagram of the horizontal support device, and FIG. 3 is a schematic view of a trolley line intersection where the horizontal support device is installed.
[0006]
FIG. 3 shows a train line structure at a rail branch point in the train track. T1 is a trolley wire on the main line side, M1 is a suspending wire for suspending it, T2 is a trolley wire on the crossover side, and M2 is a suspending wire for suspending it. The horizontal support device 1 is installed at a predetermined distance on both sides of the intersection X of the trolley lines T1 and T2.
[0007]
As shown in FIG. 1, the horizontal support device 1 includes a support arm 2, a connection arm 3, and a suspension rod 4.
[0008]
The support arm 2 is electrically insulative between both ends and is passed between the two suspension lines M1 and M2, and holds the suspension lines M1 and M2 at both ends. A connecting bracket 2a is provided at the center lower portion.
[0009]
The connecting arm 3 is electrically insulative between both ends and is passed between the two trolley wires T1 and T2, and holds the trolley wires T1 and T2 at both ends. The connecting arm 3 is curved in a mountain shape that rises in the center, and includes a connecting bracket 3a in the upper part near both ends. A level 5 is fixed to the lower center of the connecting arm 3 so that it can be seen from the ground.
[0010]
The pair of suspension rods 4 have the same length and are both pivotally supported on the bracket 2a of the support arm 2 at the upper end and pivotally supported on any bracket 3a of the connecting arm 3 at the lower end. The suspension rod 4 is configured to be adjustable in length by a turnbuckle 4a in the middle.
[0011]
The operation of the horizontal support device 1 will be described with reference to FIG. As shown in FIG. 2A, in the initial state of installation of the horizontal support device 1, it is assumed that the two suspension lines M1, M2 and the two trolley lines T1, T2 are in a horizontal position. The two suspension rods 4 and the connecting arm 3 form an isosceles triangle, the apex of which is suspended at the center of the support arm 2, and the two trolley wires T1 and T2 are supported at both ends of the bottom. Now, as shown in FIG. 2B, when one suspension line M2 rises from its original position by ΔH, one end of the support arm 2 rises integrally therewith. The suspension rod 4 rotates relative to the support arm 2 at the upper pivot point, and rises by Δh while maintaining the level of the connecting arm 3. The rising distance Δh of the connecting arm 3, that is, the rising distance of the central pivot point of the support arm 2 is considerably smaller than the rising distance ΔH at one end. FIG. 2C shows the case where one suspension line M2 descends from the original position by ΔH. In this case as well, the connecting arm 3 is lowered by Δh which is considerably smaller than ΔH while maintaining the level. Therefore, even if a height difference occurs between the two suspension lines M1 and M2 and the support arm 2 is inclined with respect to the horizontal, the two trolley lines T1 and T2 slightly move up and down while maintaining the horizontal position of each other. Only.
[0012]
Since the connecting arm 3 is curved so as to become higher in the center, even if the pantograph is inclined to the left and right with respect to the traveling direction according to the cant angle of the track and passes under the trolley lines T1, T2, the end of the pantograph Does not contact the connecting arm 3. At the time of maintenance inspection, the support level of the two trolley wires T1 and T2 can be confirmed by visually observing the level 5 attached to the lower part of the connecting arm 3 from the ground.
[0013]
【The invention's effect】
As described above, the present invention combines the support arm 2 that couples the main-line-side suspension line M1 and the cross-line-side suspension line M2, and the main-line-side trolley line T1 and the cross-line-side trolley line T2. And a pair of suspension rods 4 of equal length, the upper end of which is pivotally supported at the center of the support arm 2 and the lower end of which is pivotally supported at one end side or the other end side of the connection arm 3. Since the horizontal support device 1 for the trolley wire is provided, the two trolley wires T1 and T2 are not connected to each other even if the height difference occurs between the two suspension wires M1 and M2 and the support arm 2 is inclined with respect to the horizontal. , It is possible to maintain the horizontal position of each other only by slightly moving up and down.
[Brief description of the drawings]
FIG. 1 is a front view of a horizontal support device.
FIG. 2 is a schematic operation diagram of the horizontal support device.
FIG. 3 is a schematic view of a trolley line intersection where a horizontal support device is installed.
[Explanation of symbols]
1 horizontal support device 2 support arm 2a bracket 3 connecting arm 3a bracket 4 suspension rod 4a turnbuckle 5 level

Claims (4)

A support arm that connects the main line side suspension line and the crossover line side suspension line, a connecting arm that connects the main line side trolley line and the crossover line side trolley line, and grips at both ends;
A horizontal trolley wire comprising: a pair of suspension rods having substantially the same length, the upper end pivotally supported at the center of the support arm, and the lower end pivotally supported at one end or the other end of the connecting arm. Support device. The horizontal support device for a trolley wire according to claim 1, wherein the connecting arm is curved to be higher in the center. The trolley wire horizontal support device according to claim 1, wherein a level is fixed to the lower part of the connecting arm so as to be visible from the ground. The horizontal support device for a trolley wire according to claim 1, wherein the suspension rod is adjustable in length.

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