JPS6024647Y2 - Foldable lambda type overhead wire device - Google Patents

Description

[Detailed description of the invention] A new type of suspension wire called a lambda type has appeared in suspension wires that horizontally support overhead contact lines, and the present invention relates to an improvement of this type.

A so-called lambda-type suspension line is one in which the overhead contact line is held between anchor wires attached to both ends of a long wire, and the center point of the long wire is suspended from a structure.

This wire requires a length of around 8 meters, so it is rolled up into a ring and transported to the construction site.

The wire in this case is a stranded wire consisting of a plurality of strands, so it can be loop-wound, but it has the following drawbacks.

In the lambda type suspension line system, any error in the length of the wire simply results in a deviation in the height position of the overhead contact line, so the length in use must closely match the length in the design and should not change over time. It is required that there be no

However, it is difficult to satisfy this requirement because the loop-wound wire remains curved due to curling.

In addition, the stranded wire untwists slightly due to the tension it receives during use, which twists the anchor and causes the wire to stretch.

The present invention is intended to solve these problems.

Examples will be described with reference to the drawings.

The triangular metal fitting 1 connects the vertices of the two isosceles triangular plates with the hanging pin la.
.

Both ends of the bottom are integrally connected by a retaining pin 1b, and it is suspended from a shaft S provided on the structure P by a hanging pin 1a.

The suspension wire 2 has a disk shape at the upper end of a single round wire, and has a hole 2a bored therein so as to be able to lock onto the stop pin 1b, and a terminal fitting 3 is attached to one end of the cylindrical body at the lower end. An axial hole is bored into which an anchor can be inserted and crimped, and a pin 3a protruding from both sides in the diametrical direction is provided at the other end so as to be able to hold an anchor E, which will be described below.

The anchor E extends from a pair of opposing rectangular ear pieces, and has a hole inserted into the pin 3a at its longitudinal end.

This ear piece is further provided with an abutting edge on the upper part of the opposing surface, teeth on the lower end that can hold the overhead contact line T, and an insertion hole for the bolt 4 in the center, so that both the pins inserted into the pin 3a By tightening the ear piece with bolt 4, the overhead contact line can be held.

The above suspension wires are installed symmetrically to the left and right sides of the triangular metal fittings.

Since it is unavoidable that the tethered contact line is slightly bent at the anchor portion, the exact same concept can be applied to the case where two anchors are placed on each side to avoid this.

That is, as shown in FIG.
In this structure, a triangular yoke 5 equipped with a and two branch pins 5b is held in place, and an anchor is connected to each branch pin via two long and short branch lines 6 and 7 made of round wire, respectively.

The branch lines 6 and 7 in this case have the same structure as the suspension line 2 described above, and only have different lengths.

In this case, in order to level the overhead contact line, it is necessary to change the tension of the two branch lines 6°7, and the distance between the central pin 5a and the branch pins 5b on both sides of it must be adjusted accordingly. shall be taken as a thing.

The present invention is constructed as described above.

As mentioned above, a length of approximately 8 m is considered appropriate for a suspension line in which one anchor is attached to each end of the wire.

If these were made of round wire as shown in Figure 1, there would be two wires of around 4m, long enough to be transported in a straight line.

Furthermore, if this is made into a branched type with a yoke as shown in FIG. 5, it can be folded at the center of the yoke to provide stiffness.

The feature of the present invention is that the problem of the wire type suspension line mentioned at the beginning is solved by making the long item foldable as described above.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention, Fig. 2 is a front view of the suspension line, Fig. 3 is a front view of the anchorage, Fig. 4 is a cross-sectional view along the AA direction, and Fig. 5 is a front view of another embodiment. be. 1...triangular metal fitting, 1a...hanging pin,
1b...Curved retaining pin, 2...Suspension wire, 2a...
... Hole, 3 ... Terminal fitting, 3a ...
Zen, 4...Bolt, 5...Yoke,
5a... Central pin, 5b... Branch pin, 6.7... Branch line, E, curve, anchor, T
・・Open type lane, P・・・・Structure, S・・・・・・
shaft.

Claims (1)

[Scope of utility model registration request] An isosceles triangular metal fitting with a hanging pin on the top and a locking pin on both ends of the bottom, one end that can be locked to the locking pin and the other end with an anchor, or two long and short anchors with each anchor. A folding lambda consisting of a yoke with a branch line and a pair of round wire suspension lines each capable of being held in place, the entire length of which can be folded around the holding pin part and the yoke part. Type suspension line equipment.