JPH0134501Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a damper weight stopper, that is, a device for preventing the damper weight from falling off.

Among vibration prevention devices or dampers, centralized dampers with a weight, such as torsional dampers and stock bridge dampers, are mainly used to prevent breeze vibration.
When the damper is installed in a span under special weather conditions, topography, or environment, there are accidents in which the damper itself breaks and falls due to abnormal vibrations such as gearing of overhead lines. This is because the input energy is excessive.
This increases the load on the damper and leads to fatigue failure of the restraint line. If the restraining wire breaks, the damper's weight may fall, causing damage to surrounding insulators and structures.

This invention was made in consideration of the above points, and the purpose is to provide a damper weight stopper with a simple structure that locks the damper weight to prevent it from falling, and which is easy to install even when working on a tower.
The fastener of this invention consists of a mesh bag with a coarse mesh, and the opening string of the bag serves as a tether wire.The wire forming the mesh is made of a material with weak elasticity, so it is easy to store and transport. Since it is almost flat, it is easy to handle, and when the opening string is tightened, it becomes a bag shape and can easily cover the damper weight.

This invention will be specifically explained with reference to the embodiments illustrated below.

As shown in Figures 1 and 2, the net 1 constituting the net bag is made of short metal pipe-shaped metal fittings 2, etc., located at, for example, three locations equidistantly in the circumferential direction on the circumference of the ring 1a in the example shown in Figure 1. , fix the ring 1b with a larger diameter by loosening it at three places, and attach the muzzle 3 to the outside of the ring 1a.
It has a simple shape and is individually formed.

In the example shown in FIG. 2, only the ring 1b is fixed at three locations with metal fittings 2, and three loop-shaped muzzles 3 are formed outside the central triangular portion 1c. Both the one in Fig. 1 and the one in Fig. 2 have three muzzles 3 through which the cap laces 4 are passed in sequence, and the cap laces 4 are fastened at one end 4a and made into a loop with a pipe-shaped metal fitting similar to the metal fitting 2. 5, and place one side so that it can pass freely through the metal fitting 5.
When the loop of the cap string 4, which is common to a pair of net bags for weights and passed through the muzzle 3, is tightened as shown in Fig. 3, the three muzzles 3 will be drawn toward one point. The net 1 becomes bag-shaped and can wrap the weight W with it, as shown in FIG.

Therefore, as shown in FIGS. 4 to 6, the center part of the opening strap 4 of the net bag 1 that wraps the left and right weights W, W' is wrapped around, for example, the restraining line attachment body B, and the weights W, W' can be tied with the opening string 4 of the net bag.

If the wires constituting the net 1 and the strap 4 are thin wires with weak elasticity, such as nylon-coated steel stranded wire, when the strap 4 is not tightened, it will be flat as shown in Figures 1 and 2. Because it is rounded, it is easy to handle during storage and transportation, and when the neck strap 4 is tightened,
As shown in FIG. 3, it can be easily formed into a bag shape to surround the weight, and this operation is also extremely easy. When the pipe-shaped metal fitting 5 is in the form of a pipe, the wire can be freely passed through it, and by crushing it, the wire can be easily fixed. Therefore, tightening and drawing of the lace 4 and connecting the wires are easy. Since it can be easily done using tools even when working on a tower, it is possible to lock the weights extremely easily and reliably. Moreover, the thin wires that make up the net bag have weak elasticity and can be bent freely, so they do not interfere with the movement of the weight to prevent vibrations.

As mentioned above, the weight stopper of this invention wraps the weight in a bag made of fine wire mesh, so it is lightweight and easy to handle, and since it is connected with the bag's opening string, it prevents the stop wire from breaking. In this case, the weight can be prevented from falling. Also, since it is wrapped in netting, it is convenient to be able to easily check the condition of the weights.

[Brief explanation of drawings]

Figures 1 and 2 are plan views showing two embodiments of the net constituting the stopper of this invention, Figure 3 is a perspective view showing a weight wrapped in a net bag, and Figure 2 is a perspective view showing a weight wrapped in a net bag. FIG. 4 is a plan view of a torsional damper using the stopper of this invention, FIG. 5 is a front view of the one shown in FIG. 4, and FIG. 6 is a side view of the weight. 1... Net, 1a, 1b... Ring, 1c... Triangular part, 2, 5... Pipe-shaped fitting, 3... Muzzle, 4
... Mouth lace, 4a... End of mouth lace, W... Weight,
B... Deterrent line attachment body.

Claims (1)

[Scope of utility model registration request] This damper weight stopper consists of a net bag made of a wire material with weak elasticity and capable of covering the damper weight, and the net bag is provided with an opening string capable of tying the damper weight.