JPH0993707A - Layout of shunt wire of direct-moving pantograph apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the trouble of power supply even if the connection of one shunt lead is failed by providing a cover at the outside of a main pipe, disposing the lead for power supply in the space between the cover and the pipe, thereby weight-balancing them. SOLUTION: A power supply shunt lead is disposed in a space S which is not so affected by the influence of passing air between a main pipe 18 and an inner cover 26. The first shunt lead 31 and second shunt lead 32 are disposed symmetrically at the front and rear side of the pipe 18. Thus, the weight balance is taken, and even if the connection of the one lead is failed, no trouble occurs at the power supply. The shunt leads 31, 32, 33 are not disposed out of the cover to make it possible to reduce the whistle noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantograph device provided on a roof of an electric vehicle for collecting current, and more particularly to a direct-acting pantograph device for vertically moving a collector boat by a lift cylinder device. Regarding shunt lead wire handling structure.

[0002]

2. Description of the Related Art A general structure of a pantograph device for supplying electric power from an overhead wire to a vehicle is such that a diamond-shaped frame is used as a spring as disclosed in JP-A-62-68002 and JP-A-63-92202. The upper and lower sides of the frame body are brought up and down so that the current collecting boat provided at the top of the frame body is brought into contact with and separated from the overhead line.
In this pantograph device, the frame pair itself is used as a power supply conductor.

Recently, in order to reduce aerodynamic noise, a direct-acting pantograph apparatus has been proposed in which one slider (mast) provided with a current collecting boat is vertically moved up and down by a lift cylinder. .

[0004]

The simplest feeding structure for the above-mentioned direct-acting pantograph device is to use a slider that can be moved up and down by a lift cylinder as a feeding conductor. However, when the slider is used as a power supply conductor, sparks are generated between the slider and a member in contact with the slider, and electrolytic corrosion occurs.

[0005]

In order to solve the above-mentioned problems, the present invention provides a cover on the outside of the main pipe of a direct-acting pantograph device, and is not much affected by traveling wind between the main pipe and the cover. A space was formed and a shunt lead wire for power supply was arranged in this space.

Here, the shunt lead wires may be symmetrically arranged in front of and behind the main pipe. With such a structure, weight balance can be achieved, and even if the connection of one shunt lead wire is defective,
It does not hinder power supply.

Further, the conductor is attached to the slider directly or via a housing in an insulated state, and the conductor and the current collector are electrically connected by a first shunt lead wire, and the conductor is connected to the conductor. It is possible to arrange the second shunt lead wire so as to be hung between the terminal provided on the main pipe and electrically connect it, and further to lead out the third shunt lead wire from the terminal to the vehicle body side. is there.

By providing the guide plate on the outside of the second shunt lead wire, it is possible to prevent disadvantages such as the second shunt lead wire being caught in the cover when moving up and down. By configuring the shunt lead wire of a plurality of braided wires formed by knitting thin metal wires, the slider can be smoothly moved up and down.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of a direct-acting pantograph device to which a shunt lead wire handling structure according to the present invention is applied, FIG. 2 is a plan view of the same direct-acting pantograph device, and FIG. 3 is a mast of the same direct-acting pantograph device. FIG. 4 is an enlarged side sectional view of the portion, and FIG.

In the direct-acting pantograph device, an underframe 1 is attached to a roof of a vehicle in an insulated manner through an insulator 2, a horizontal shaft 3 is provided on the underframe 1, and one end of a base 4 is attached to the horizontal shaft 3. A mast 5 is rotatably supported and a mast 5 is provided on the base 4.

A lever 6 is attached to the base 4,
A pair of air-operated mast raising and lowering cylinders 7 are arranged between the lever 6 and the underframe 1 on the left and right, and further, between the lever 6 and the underframe 1, the mast raising and lowering cylinders 7 are arranged substantially parallel to each other. A hydraulic damper 8 is arranged to absorb the impact at the standing position and the falling position. By compressing the mast raising / lowering cylinder 7, the mast 5 falls down to the imaginary line position in the figure, and by extending the mast raising / lowering cylinder 7, the mast 5 stands up to the vertical position shown by the solid line in the figure. Further, the mast extends in the arrow direction by the lift cylinder described later.

On the underframe 1, an arm 9 for locking the mast 5 at a tilted position, a storage lock cylinder 10 for operating the arm 9, an upright detection valve 11 for detecting the upright state of the mast 5, and a mast 5 are provided. The lock mechanism 12 for locking the lock mechanism 12 to the standing position, the mast lock cylinder 13 for operating the lock mechanism 12, and the like are provided.

On the other hand, in the structure of the mast 5, as shown in FIGS. 3 and 4, a lift cylinder 14 which is actuated by air is erected on the base 4 and a slider 15 is arranged outside the lift cylinder 14. The upper end of the slider 15 and the upper end of the rod of the lift cylinder 14 are connected via a housing 16 so that the slider 15 moves up and down as the lift cylinder 14 expands and contracts. A spring 17 is provided on the outer side of the upper portion of the lift cylinder 14 to reduce the impact at the time of maximum compression.

The slider 15 is arranged in the main pipe 18, and a plurality of guide rollers 19 are attached to the main pipe 18, and the guide rollers 19 guide the up-and-down movement of the slider 15 and move around the slider 15. I'm stopping.

A guide 20 is attached to the inside of a recess provided in the center of the housing 16, and a cylindrical body 21 having an upper end closed is slidably inserted into the inside of the guide 20. A spring 22 for absorbing minute vibrations, which is supported by the upper end of the rod of the lift cylinder 14, is arranged, and a top plate 23 is fixed to the top end of the cylinder body 21. Dust and the like enter the pantograph device on the top plate 23. A lid 24 for preventing the above is attached, and a current collecting boat 25 that contacts the overhead line and takes in an electric current is provided on the top plate 23. Incidentally, the current from the overhead wire flows to the sliding plate provided on the collector boat 25.

An inner cover 26 supported on the side of the base 4 is arranged outside the main pipe 18, and is further moved up and down outside the inner cover 26 as the lift cylinder 14 expands and contracts. Outer cover 2
7 are arranged.

Further, in the present invention, the shunt lead wire for power feeding is arranged in the space S between the main pipe 18 and the inner cover 26, which is not so affected by the traveling wind.

Specifically, as shown in FIG. 5, the shunt lead wire is divided into a first shunt lead wire 31, a second shunt lead wire 32, and a third shunt lead wire 33, and the first shunt lead wire is divided. A wire 31 electrically connects between the current collector 25 and the conductor 34 attached to the housing 16, and a second shunt lead wire 32 connects the conductor 34 and a terminal 35 attached in the middle of the main pipe 18. The terminals 35 and the switch on the vehicle side are electrically connected by a third shunt lead wire 33.

When a current flows through the slider 15, sparks or the like occur and electrolytic corrosion occurs on the slider and the guide roller. Therefore, as shown in FIG. 6, there is insulation between the top plate 23 and the cylindrical body 21. The body 36 is interposed, and the insulator 37 is interposed between the housing 16 and the conductor 34.

Regarding the first shunt lead wire 31 and the second shunt lead wire 32, the main pipe 1
They are symmetrically arranged before and after the item 8. By doing so, the weight is balanced, and even if the connection of one of the shunt lead wires is defective, power supply will not be hindered.

As shown in FIG. 7A, the first shunt lead wire 31 and the third shunt lead wire 33 are composed of a single wide braided wire formed by knitting fine metal wires. On the other hand, the second shunt lead wire 32 connects the conductor 34 whose vertical position is relatively changed with the operation of the lift cylinder 14 and the terminal 35, and therefore, the second shunt lead wire 32 is hung so as to form a U shape between them. It is arranged in a rumor.
The second shunt lead wire 32 is shown in FIG.
As shown in (b), it is composed of a plurality of braided wires, which are narrower than the braided wires constituting the first and third shunt lead wires 31, 33, while ensuring a sufficient energization amount. ,
It has a shape that can be easily deformed.

Further, in order to prevent the second shunt lead wire 32 from being sandwiched between the inner cover 26 and the outer cover 27 when the second shunt lead wire 32 is swung in the left-right direction, the guide plate 38 is provided outside the second shunt lead wire 32. Is arranged.

[0023]

According to the present invention as described above,
A cover is provided on the outside of the main pipe of the direct-acting pantograph device to form a space that is not significantly affected by running wind,
Since the shunt lead wire for power supply is arranged in this space,
There is no shunt lead wire outside the cover, which reduces aerodynamic noise.

By arranging the shunt lead wires symmetrically before and after the main pipe, the weight is balanced, and even if the connection of one of the shunt lead wires is defective, the power is not supplied. There will be no trouble.

Further, the conductor is attached to the slider provided with the current collector directly or through the housing in an insulated state, and the conductor and the current collector are electrically connected by the first shunt lead wire. A second shunt lead wire is arranged so as to hang between the conductor and a terminal provided on the main pipe, and the terminal and a switch on the vehicle body side are electrically connected by a third shunt lead wire. The connection between the movable member and the movable member can be surely performed, and the electrolytic corrosion of the slider and the guide roller can be prevented.

In particular, by providing the guide plate on the outer side of the second shunt lead wire, it is possible to prevent disadvantages such as the second shunt lead wire being caught in the cover when moving up and down, and the second shunt lead wire. By configuring the lead wire from a plurality of braided wires made of thin metal wires, the shunt lead wire can be flexibly bent, and the slider can be smoothly moved up and down.

[Brief description of drawings]

FIG. 1 is a side view of a direct-acting pantograph device to which a shunt lead wire routing structure according to the present invention is applied.

FIG. 2 is a plan view of the direct acting pantograph device.

FIG. 3 is an enlarged side sectional view of a mast portion of the direct acting pantograph device.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a schematic view of a shunt lead wire handling structure according to the present invention.

FIG. 6 is an enlarged view of a portion of a first shunt lead wire.

FIG. 7A is a diagram showing first and third shunt lead wires, and FIG. 7B is a diagram showing second shunt lead wires.

[Explanation of symbols]

1 ... Underframe, 2 ... Insulator, 4 ... Base, 5 ... Mast, 14 ...
Lift cylinder, 15 ... slider, 16 ... housing,
18 ... Main pipe, 25 ... Current collector, 26 ... Inner cover, 27 ... Outer cover, 31 ... First shunt lead wire, 32 ... Second shunt lead wire, 33 ... Third
Shunt lead wire, 34 ... conductor, 35 ... terminal,
36, 37 ... Insulator.

Continued Front Page (72) Hiroyuki Kishimoto 2-4-24 Shibata, Kita-ku, Osaka City West Japan Railway Company (72) Takashi Aso 2-4-24 Shibata, Kita-ku, Osaka West Japan Passenger Railway Co., Ltd.

Claims (5)

[Claims] 1. A direct-acting pantograph device in which a slider is moved up and down along a main pipe by a lift cylinder so that a current collector body provided on an upper portion of the slider comes into contact with and separates from an overhead wire. A shunt lead wire routing structure in a direct-acting pantograph device, characterized in that a cover is provided outside the main pipe, and a shunt lead wire for power feeding is arranged in a space between the cover and the main pipe. 2. The shunt lead wire handling structure in the direct-acting pantograph apparatus according to claim 1,
The shunt lead wire is symmetrically arranged in front of and behind the main pipe. A shunt lead wire routing structure in a direct-acting pantograph device. 3. In the shunt lead wire handling structure in the direct-acting pantograph apparatus according to claim 1 or 2, the conductor is attached to the slider directly or through a housing in an insulated state, The conductor and the current collector are electrically connected by a first shunt lead wire, and a second shunt lead wire is hung between the conductor and a terminal provided on the main pipe. And electrically connected, and then from the terminal to the third side of the car body.
A shunt lead wire handling structure in a direct-acting pantograph device characterized in that the shunt lead wire is derived. 4. The shunt lead wire handling structure in the direct acting pantograph apparatus according to claim 3,
A shunt lead wire routing structure in a direct-acting pantograph device, characterized in that a guide plate is provided outside the second shunt lead wire. 5. The shunt lead wire handling structure in the direct-acting pantograph apparatus according to claim 3,
The second shunt lead wire is composed of a plurality of braided wires made of thin metal wires, and the shunt lead wire handling structure in a direct-acting pantograph device is provided.