JPS5839228Y2 - Composite trolley wire support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supporting part for a composite trolley wire having high mechanical strength.

Conventional composite trolley wire is supported by forming retention grooves on both sides of the composite trolley wire, and the trolley wire is held by the ears only by engagement between the ear claws and the engagement grooves.
Gripping may become unstable, or the strength of the claws and engagement grooves must be extremely increased.

An object of the present invention is to provide a support for a composite trolley wire that can reliably grip the composite trolley wire with a simple configuration without the need to increase the strength of the claws and retaining grooves.

In order to achieve this purpose, the composite trolley wire support section of the present invention includes a composite trolley wire with a vertically long rectangular cross section that has a plate-like vertically elongated steel core inside, and a composite trolley wire that is provided on both sides of the composite trolley wire. an engagement groove, and an ear having a claw at its tip that engages with both of the engagement grooves; the middle of the ear has a planar contact portion that makes close contact with the side surface of the composite trolley line; The wire is held under pressure by the flat contact portion of the ear.

Embodiments of the present invention will be described with reference to the drawings.

In Fig. 1, the composite trolley wire has a plate-like vertically long copper core 1 in the center, and a conductive metal layer 2 made of copper, aluminum, etc. on the outside.
It has a vertically elongated rectangular cross section, and an engaging groove 3 with a triangular cross section is provided in the center of the side surface of the conductive metal layer 2.

The engaging groove 3 is a concave groove with a curved surface, as shown in an enlarged view in FIG. 2, which is easier to manufacture than a triangular groove with an acute angle, and is less likely to cause cracks from the groove. There is no.

Note that although the curved side portions R of the concave groove are shown as smooth curved surfaces in the drawings, this is not necessarily necessary.

Further, the claw 4 of the ear 5 that engages with the composite trolley wire through such a groove does not need to be a convex portion that fits into this groove.

For example, it may be appropriately selected such as one consisting of protrusions having a triangular cross section, short protrusions having a semicircular cross section, or hemispherical protrusions provided at predetermined intervals.

Since the trolley wire and the ears 5 are in close planar contact with each other at the flat side surface 6 and have the main gripping force, the trolley wire and the ears 5 should be held together at the engagement groove 30 so that they do not separate. This is because it is on.

1 shows an example in which the engaging groove 3 is formed only in the center of the side surface of the metal layer 2. However, the engaging groove 3 is not limited to this as shown in FIG. , a plurality of strips may be provided on one side.

In this case, the retaining grooves 3 are provided at substantially symmetrical positions with respect to the center line in the vertical direction.

In this way, if one end of the trolley wire slides on a current collector such as a pantograph of a train and wears out, the trolley wire can be turned upside down and the other end can be slid on the current collector.

Furthermore, when used in this manner, the vertical balance of the extended trolley wire can always be kept constant, so stable sliding power supply can be performed.

As described above, according to the present invention, the flat contact portion in the middle of the ear and the side surface of the trolley wire are in close contact with each other in a planar manner, and the trolley wire is mainly gripped by this close contact, and the engagement groove and the claw are engaged with each other. Since this simply prevents the trolley wire from detaching or moving relative to the ear, the trolley wire can be reliably supported without increasing the strength of the engagement groove and pawl.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the vicinity of the retaining groove in FIG. 1, and FIG. 3 is a cross-sectional view of another embodiment of the present invention. 1...Copper core, 3...Engagement groove, 4...
...Claw, 5...Ear, 6...Side.

Claims (1)

[Scope of utility model registration request] A composite trolley wire with a vertically long rectangular cross section that has a plate-like vertically elongated steel core inside, engagement grooves provided on both sides of this composite trolley wire, and a claw that engages with both of the engagement grooves at the tip. A composite trolley comprising an ear, the middle of the ear has a flat contact part that makes close contact with the side surface of the composite trolley wire, and the composite trolley wire is held under pressure by the flat contact part of the ear. Support part of the line.