JPS5854832Y2 - Overhead ground wire jumper device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jumper device for an overhead ground line installed on a support such as a steel tower in parallel with an overhead line.

This type of jumper device is designed to prevent the jumper wire from being connected between the corresponding connecting fittings of two overhead ground wires mechanically connected to the support via a connecting fitting and fixed to the support with a holding fitting. There is.

In the prior art, this jumper wire is curved upward between the surface connection fitting and the holding fitting, but in particular, the outer ends of these two curved parts have eyes that open inward in directions facing each other from the both end connection fittings. Since the jumper wire was connected to the exit part, the two curved parts were close to each other, and therefore the jumper wire had to be bent in an unreasonable position near the holding bracket, so there were various problems with the overhead ground wire. The vibrations caused by this cause large stress to act on the jumper wires, leading to accidents where the jumper wires break.

An object of the present invention is to provide a jumper device for an overhead ground wire in which large stress is not applied to the jumper wire.

An embodiment of the present invention will be described in detail with reference to the drawings. The drawings show an overhead ground wire jumper device 10 according to the present invention,
The overhead ground wire 12.12' is mechanically connected to a support 14 such as a steel tower by a connecting fitting 16.16' and is supported with a predetermined slack between the towers.

The jumper device 10 comprises a jumper wire 18 that is cut from a strand of wire connected between fittings 16, 16'.

The connecting fittings 16.16' have outlet portions 16a, 16 that are substantially parallel to the overhead ground wire 12.12' and open outward from each other.
' has a.

The jumper wire 18 is inserted into the sunrise portions 16a and 16'a with both ends thereof facing each other and is compressed and connected, and the intermediate portion is fixed to the upper surface of the support 14 with a presser metal fitting 20. .

Therefore, the jumper wire 18 has two first and second curved portions 22.22' that curve upward between the outlet portions 16a, 16'a of the connection fittings 16.16' and the holding fitting 20.
are formed, but these two curved portions 22 and 22' are separated laterally because their outer ends 22a and 22'a are connected to the outlet portions 16a and 16'a that open outward. However, because of this, the parts 22b and 22'b of the two curved parts 22 and 22' on the presser metal fitting side bend to the left and right, so that they are bent in an unreasonable posture before and after the presser metal fitting 20, as in the conventional parallel folding. Since the stranded wire can be made long and its flexibility can be fully utilized for installation, no undesirable distortion is applied near the presser fitting.

According to the present invention, as described above, the jumper wire is formed by connecting the exposed portion from the outside and bending the two curved portions away from each other, so the jumper wire becomes longer overall and the presser metal The part that is fixed with the jumper wire can be bent easily by taking advantage of its flexibility, so it does not generate large stress, so even if vibration occurs in the overhead ground wire, there is no chance of an accident where the jumper wire breaks. do not have.

[Brief explanation of drawings]

The drawing is a side view of an overhead ground wire jumper device according to the present invention. 10... Overhead ground wire jumper device, 12.1
2'... Overhead ground wire, 14... Support body,
16.16'... Connection fittings, 16a, 15'a
...Exit part, 18...Jumper wire, 20...Press fitting, 22.22'...
・First and second curved parts, 22a, 22'a...
...outer end.

Claims (1)

[Scope of utility model registration request] It consists of a jumper wire connected between the corresponding connecting fittings of two overhead ground wires mechanically connected to the support via connecting fittings and certified with a holding fitting to the said support in the middle part, said jumper wire being In the jumper device for an overhead ground wire having first and second curved portions that curve upward between the connecting fitting and the holding fitting, the first and second curved portions may be separated from each other. An overhead ground wire characterized in that outer ends of the first and second curved portions face each other and are respectively connected to sunrise portions of the connecting fitting that are substantially parallel to the corresponding overhead ground wires and open outward. jumper device.