JPH07227005A - Pantograph for high-speed train - Google Patents

Abstract

PURPOSE:To provide a pantograph for high-speed train, which utilizes a gyro effect and Magnus effect, and can stably collect electric currents without producing much noise when a train runs at a high speed. CONSTITUTION:The part of a pantograph for high-speed train which comes into contact with overhead lines is formed in a roller-like shape and collected electric currents are supplied to a car body from a current collector 8 which is brought into contact with the internal surface of the roller. A bearing 7 is electrically insulated and fitted to the car body with a spring 2 and air cylinder 4 in between. The fitting part is housed in a cylindrical container so as to reduce the air resistance of the car body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a current collector suitable for high-speed trains such as Shinkansen.

[0002]

2. Description of the Related Art Up to now, current collectors for high-speed trains have a pantograph which has a diamond-shaped frame provided on the roof of a vehicle, like a low-speed train, and has a structure capable of expanding and contracting freely with springs or compressed air. Was used.

[0003]

The conventional pantograph has the drawbacks that the contact resistance increases at high speeds, a large noise is generated, the current collection efficiency is poor, and the contact is unstable. In addition, it has a structure with large air resistance,
When running, the roof was heavily loaded. Furthermore, it was easily affected by an abnormality in the overhead line, which often caused an accident.

[0004]

SUMMARY OF THE INVENTION The present invention uses a roller that freely rotates by contact as a current collector instead of the current collection by the pantograph, and collects the current from the inner cylinder to form a single cylinder type. It is installed on the roof or side of the vehicle, supported by two springs and air cylinders incorporated.

[0005]

[Operation] Two cylinders, in which the air cylinders for the upper and lower rollers and the contraction coil spring are incorporated, are installed on the side surface of the vehicle.
When the vehicle is running, it is pushed upward by compressed air and contacts the overhead line. When the air pressure is low, it is pulled down by spring pressure.

A roller type current collector is attached to the upper end of the cylinder via a bearing electrically insulated from the cylinder.

The roller-type current collector rotates freely by contact with the overhead wire, and carries out high-voltage wiring from the current collector contacting the inside of the cylinder to the vehicle.

[0008]

EXAMPLES As for Examples, as shown in FIGS. 3 and 4, it is structurally effective to attach this device to a gable portion of a vehicle.

[0009]

INDUSTRIAL APPLICABILITY The present invention utilizes the stability of the roller due to the gyro effect and the fact that the pressure on the overhead wire increases in proportion to the speed due to the Magnus effect. Is what you get.

According to the present invention, there is almost no resistance between the current collector and the overhead wire, and all the parts that generate contact noise are sealed inside. Further, the structure is also low in air resistance, so noise is reduced. There is almost no occurrence of.

The present invention can be mounted on the roof of a two-story vehicle with almost no space from the overhead wire even when it is installed on the roof as in the conventional case. Further, it is mounted on the gable portion of the vehicle end. It is also possible to reduce the influence on the vehicle structure, and in particular, it is suitable as a current collector for a vehicle having a connecting structure in which a dolly is located between the vehicles.

The present invention is less susceptible to damages such as scratches and deposits on the overhead wire, and enables stable power supply at all times.

[Brief description of drawings]

FIG. 1 shows a front view including a cross-sectional view of only one side cylinder of a roller collector.

FIG. 2 is a side view of a roller collector.

FIG. 3 is a front view showing a state where a roller collector is attached to a vehicle end.

FIG. 4 is a side view showing a state where a roller collector is attached to a vehicle end.

[Explanation of symbols]

 1 Roller Current Collector 2 Shrink Coil 3 High Voltage Wiring 4 Air Cylinder 5 Air Piping 6 Support Outer Cylinder 7 Bearing 8 Inner Cylinder Current Collector

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 15, 1994

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

Claims (2)

[Claims] 1. A current collector composed of a roller-type current collector and a bearing in which an inner cylinder current collector is incorporated. 2. A cylinder incorporating a spring and an air cylinder for expanding and holding the current collector of claim 1.