JPS5852831Y2 - bait damper - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a bait damper.

A bait damper consists of an attachment wire attached to the main line (power transmission line, overhead ground wire, etc.) near a support point, and a tightening clamp that connects the main line and the attachment wire at a desired interval, and dampens vibrations generated in the main line. This damps and prevents fatigue rupture of the main line at the support point tl-.

However, in general, the distance between the tightening clamps increases as the distance from the support point of the main line increases, so determining the distance between the tightening clamps at high places is a very troublesome and dangerous task.

In addition, the conventional attachment structure between the tightening clamp and the attachment wire was a gripping structure using a bolt, so if the main wire vibrates and the attachment wire vibrates, the bolt loosens and the gripping force decreases. There was a fear that the extension wire would eventually fall off from the clamp and damage the main wire.

The present invention solves the above-mentioned problems.

An embodiment of the present invention will be described in detail below with reference to FIGS. 2 and 3.

Fig. 3 shows an embodiment of the connecting wire for the bait damper of the present invention. In the figure, 3 is a connecting wire made of steel core aluminum stranded wire of a desired length, 4, 4', 4it connecting wire 3, etc. The clamps are compressed and fixed at intervals 11, 12, and 13.

In general, 12<13. Clamp 4.4', 4
As shown in FIG. 2, the connecting wire 3 is passed through a through hole formed at the bottom of the connecting wire 3, and is fixed to the connecting wire 3 in advance by compression at a desired interval.

5 is its compressed and fixed portion.

Also clamps 4 and 4'. The upper part of 4b can be opened and closed about the pin 6, and the main wire can be gripped by tightening the bolt and nut T.

9 is its grip portion. A mark 8 is attached to the center of the extension line 3.

The attachment wire for the bait damper of the present invention constructed in this way is pulled up onto the steel tower as it is, and as shown in FIG. 4'' (7) The upper gripping portion 9 may be gripped by tightening.

In this case, since a mark 8 is attached to the center of the extension line 3, alignment becomes easy.

Therefore, according to the present invention, there is no need to work to determine the mounting position of the clamp at a high place, which simplifies work at high places and improves safety.

Furthermore, since the extension wire is compressed and fixed to the clamp, even if the extension wire vibrates, it will not fall off from the clamp as in the conventional case.

[Brief explanation of the drawing]

Figure 1 is a front view showing the attached wire for the bait damper of the present invention attached to the main line, Figure 2 is a sectional view taken along line A-A' in Figure 1, and Figure 3 is for the bait damper of the present invention. FIG. 2 is a front view showing an example of a wire extension. 1 is the suspension clamp (support point), 2 is the main line, 3 is the extension line, 4
, 4', 4'' are clamps, 5 is a compression fixing part, and 9 is a gripping part.

Claims (1)

[Scope of utility model registration request] A plurality of clamps each having a gripping member on the upper part that grips the main wire by tightening and a compression fixing part on the lower part that compresses and fixes the extension wire are attached to the extension wire of a desired length with the compression fixation part at a predetermined interval. An attachment wire for a bait damper, which is compressed and fixed, is pulled up onto a steel tower, and is attached to the main wire by gripping portions of clamps provided at predetermined intervals.