JPS629066B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a rigid contact wire for feeding power to electric vehicles and the like.

Conventionally, as shown in FIG. 1, this type of contact wire has a rigid body 1 made of aluminum and having a T-shaped cross section.
And on both sides of the tip of this leg, hold it and attach the ears 2 and 2' for gripping the contact wire to the bolt and nut 3.
The trolley wire 4 is gripped and attached between the tips of the wires 2 and 2', and the trolley wire 4 is attached along the running path of the electric movable body using the rigid flange portion 5 of the T-shaped cross section as the mounting portion. Those that are attached and supported by a support device 6 such as an insulator device that is attached to a wall are widely used.

In this rigid contact wire, the rigid body 1 with a T-shaped cross section is made of aluminum, so it can be used as a feeder, and this can capture the current capacity that is insufficient in the contact wire 4, thereby connecting many vehicles. There is an advantage that power can be efficiently supplied to an electric mobile body such as an electric car made of a battery.

However, since the rigid body 1 of this rigid contact wire has a T-shaped cross section, it is not possible to transport it by winding it into a roll, and due to manufacturing problems, it is not possible to make a single piece of it into a long piece. First, normally, a large number of rigid bodies with individual lengths of about 5 to 10 meters were brought to the construction site, welded on site, and used as long pieces.

Therefore, welding work, etc., was troublesome and the workability was poor.

The present invention improves these drawbacks.

This will be explained based on FIGS. 2 and 3.

In the figure, reference numeral 1 indicates a rigid body, which is made of a highly conductive metal strip, such as an extruded material such as aluminum or aluminum alloy, and is a long product of 300 m to 500 m.

Ears 2 and 2' are attached to both sides of the rigid body 1 with bolts and nuts 3, and a contact wire 4 is gripped and attached between the ends of the ears 2 and 2', as in the conventional product. .

The ears 2, 2' are made of extruded material of the same material as the rigid body 1, and have a length of about 5 m to 10 m.

Furthermore, when attaching the ears 2 and 2' to the rigid body 1, as shown in FIG. They are installed side by side.

Furthermore, as shown in FIG. 2, on the base end side of the ears 2, 2', there is provided a mounting part 7 for mounting on a support device 6, for example, an insulator device, which is mounted along the running path (not shown) of the electric mobile body. There is.

The mounting portion 7 is formed by bending the proximal ends of the ears 2, 2' outward, and as shown in FIG. It is attached via a clamp.

The contact wire 4 is made of aluminum or aluminum alloy with a vertically elongated steel core 9 placed approximately in the center.
Depending on the extrusion method etc., the single length is 1000m to 1500m long.

In addition, in the figure, 10 is a rigid body 1 and an ear 2,
This engaging portion 10 is made up of, for example, a convex portion and a concave portion, thereby facilitating the assembly work.

Reference numeral 11 indicates a spacer placed under the mounting bracket 8. This spacer is made of a plate with a notch-shaped bolt hole, and enlarges the mounting space for the mounting portion 7 of the ears 2, 2', making it easier to install the ears 2, 2'. Make your work easier. The spacer 11 is removed after installing the ears 2, 2', and the tightening bolts 12 are tightened.
2' is fixed.

Further, 13 indicates an insulating cover.

FIG. 4 shows another embodiment, in which:
The embodiment shown in FIG.
The only difference is the attachment part 7 and the contact part between the rigid body 1 and the contact wire 4; other parts are the same. Identical parts are given the same reference numerals and explanations are omitted.

That is, in this embodiment, ear 2, 2'
The configuration of the mounting portion 7 is such that the proximal ends of the ears 2 and 2' are bent toward the rigid body 1, and a slit-shaped gap is formed between the bent ends.
As shown in the figure, a bolt 14 is screwed into the mounting fitting 8 with a gap therebetween. This screwing method involves turning and tightening the mounting bracket 8 side.

In addition, the contact portion between the rigid body 1 and the contact wire 4 is
An arcuate surface is formed at the tip of the contact wire 4 to increase the contact area between the rigid body 1 and the contact wire 4.

In the above embodiment, the ears 2 and 2' are the rigid body 1.
The earrings 2 and 2 are made of a highly conductive metal in the same manner as the earrings 2 and 2, and the joints between the ears are arranged so that the seam of the ears on one side is arranged between the seams of the ears on the other side, as shown in FIG. Although at least one side of the wires 2 and 2' together with the rigid body 1 acts as a feeder for the contact wire 4, it is possible to use other materials such as steel for the wires 2 and 2' depending on the case. The arrangement form of 2 and 2' is not limited to this either.

Furthermore, as the contact wire 4, a round contact wire with a steel core 9 disposed approximately at the center is used, but other contact wires such as those shown in FIGS. 5A and 5B may also be used.

The trolley wire 4 shown in FIG. When it is finished, it can be reversed and the other end can be used.

The contact wire 4 shown in FIG. 4B uses a steel material with a T-shaped cross section as the steel core 9, and has a flange shaped like an arc, which is exposed so as to serve as a sliding surface with a current collector (not shown). It is a trapezoidal contact wire.

According to the rigid contact wire of the present invention, the rigid body is made of a highly conductive metal strip, and the proximal end of the ear is used as the attachment part to be attached to a support device such as an insulator. , the rigid body is divided into a strip-shaped rigid body and a mounting part to be attached to the support device, and the ear is equipped with this mounting function, so the rigid body can be rolled up like a spring and transported, and the rigid body can be transported by winding it up like a spring. Because of this, it is easy to manufacture, so the rigid body can be made into a long product at the factory, and only straightening work is required at the construction site, and the length can be made longer by welding at the construction site as in the past. Workability is much better than that of the original.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional rigid contact wire, Fig. 2 is a side view showing an embodiment of the rigid contact wire of the present invention, Fig. 3 is an explanatory view of the same main part, and Fig. 4 is another embodiment. FIGS. 5A and 5B are cross-sectional views illustrating other contact wires, respectively. 1...Rigid body, 2, 2'...Iyer, 3...Bolt, nut, 4...Trolley wire, 6...Support device,
7...Mounting part.

Claims (1)

[Claims] 1 Consisting of a rigid body made of a highly conductive metal strip, an ear for gripping a contact wire attached to both sides of the rigid body, and a contact wire attached for gripping between the tips of the ear, the base end of the ear A rigid trolley wire, characterized in that a side thereof is provided with an attachment portion for attaching to a support device attached along a travel path of an electric mobile body.