JP2774660B2 - Winding grip positioning tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a winding for positioning and fixing a winding grip used for retaining a support wire to a utility pole or the like at a predetermined position with respect to the support wire. The present invention relates to a grip positioning tool.

<Prior Art> In general, utility poles such as wooden poles and concrete poles are used as supports for supporting overhead transmission lines. The utility pole must support heavy wire, and the wire must also prevent its sagging. Therefore, while paying attention to the dimensions and the burial depth of the utility pole, a method of supporting the vicinity of the upper end of the utility pole and the telegraph wire with a so-called support wire such as a branch wire, a suspension wire, or a support wire of a self-supporting cable is adopted. .

FIG. 4 shows an example of an installation mode of the utility pole. As shown in the figure, a utility pole 1 is connected to an adjacent utility pole 1 ′ by a suspension line 2, and is connected to a ground surface 3 by a branch line 4.
The suspension line 2 and the branch line 4 are formed to have a predetermined length at the time of assembly, and after assembly, a predetermined tension is generated by a load on the suspension line 2 or the like. In addition, the suspension line 2 is a telephone pole 1,
1 'and a communication line (not shown).

A method of connecting the support wire to the utility pole 1 is shown in FIG. A universal band 5 is fixed to the utility pole 1 with bolts 6. A thimble 7 is rotatably supported by the bolt 6, and the suspension line 2 is connected to the thimble 7 via a winding grip 8. The hanging wire 2 and the winding grip 8 are both steel stranded wires, and the winding grip 8 is substantially U-shaped, and both ends 8a and 8b are formed in advance in a coil shape in the same winding direction as the twisting direction of the hanging wire 2. I have.

When connecting the winding grip 8 and the hanging wire 2, the worker first holds the hanging wire 2 with one hand and winds one end 8b of the winding grip 8 around the hanging wire 2 as shown in FIG. Thereafter, as shown in FIG. 7, the other end 8a of the winding grip 8 is wound around the suspension line 2 in the same procedure. Then, the suspension wire 2 and the winding grip 8 are connected by the frictional resistance between the stranded wires. This connection is made firmly, and even if a large tension is applied to the suspension line 2, the winding grip 8 is not released. The work described above relates to the connection between the utility pole 1 and the suspension wire 2, but the same applies to the connection between the utility pole 1 and the branch line 4 or between the utility pole 1 and the ground surface 3 using the branch line 4 and the winding grip 8. Is performed in the following procedure.

<Problems to be Solved by the Invention> By the way, the work of connecting the support wire, particularly the suspension wire 2 and the winding grip 8 is performed by one worker who is on a work floor of an aerial work vehicle. Therefore, as described above, in order to hold the hanging wire 2 with one hand, the joining operation has to take a troublesome process of individually winding the ends 8a and 8b of the winding grip 8 individually.

Therefore, a large amount of time is required for the joining operation, and the operation efficiency is poor. In addition, since the worker must grip the hanging wire 2 and the winding grip 8 with both hands, and must always work while receiving the weight of the hanging wire 2, there is a danger in a state where a gust of wind blows. . Further, it is difficult to reliably position the hanging wire 2 and the winding grip 8 for the same reason.

The present invention has been made in view of the above circumstances, and has as its object to provide a winding grip positioning tool that can improve safety and reliability as well as work efficiency.

<Means for Solving the Problems> In order to solve this problem, the present invention provides a winding grip positioning tool for positioning a winding grip used for retaining a support wire with respect to the support wire, A pair of gripping members, a pair of hand levers, and a pair of connecting levers that connect the gripping members and the hand levers and rotate around a pin that passes through a center block, the support wire and the winding grip Are pinched and gripped in a state in which the support wire is positioned between both ends of the winding grip. Further, the gripping member is urged by a spring in a direction of clamping and gripping.

<Operation> First, the operator grips the hand lever of the winding grip positioning tool to open a pair of gripping members in parallel to the left and right, and a support wire is positioned between the opened gripping members in the middle of the winding grip. By closing the gripping member in parallel in the state, the support wire and both ends of the winding grip are gripped and fixed by the gripping member, and then both ends of the winding grip are simultaneously wound around the support wire using both hands. Join the support wire and the winding grip.

<Embodiment> An embodiment of the present invention will be specifically described with reference to the drawings.
In the description of the embodiments, the same members as those in the conventional example described above are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 shows a front view of the winding grip positioning tool according to the present embodiment, and FIG. 2 shows a cross section taken along line BB in FIG. FIG. 3 shows a mode of a joining operation using the winding grip positioning tool of the present embodiment.

As shown in FIGS. 1 and 2, the winding grip positioning tool according to the present embodiment is located between the pair of the hand lever 10 and the clamp 11, which are both L-shaped gripping members. The center block 12 is a basic component.

The hand lever 10, the clamp 11, and the center block 12 are connected by four pairs of front and rear connecting levers 15 having pins 13 and 14 of the same diameter. Then, by operating the hand lever 10 to squeeze, the pair of left and right connecting levers 15 are symmetrically rotated about the pin 13 passing through the center block 12, and the clamp 11 is indicated by a two-dot chain line in FIG. As shown in the figure, the camera moves in parallel from side to side. A hook portion 14A is formed on the center pin 14 of the clamp 11 toward the front and back, and a tension coil spring 16 for urging the clamp 11 in a direction of attracting the clamps 11 is attached to the hook portion 14a. .

On the lower inner side of the right and left clamps 11, a V-shaped support wire groove (hereinafter abbreviated as a wire groove) 17 is sandwiched, and a vertically-semicircular tapered winding grip groove (hereinafter abbreviated as a grip groove) is provided. 18 are formed. When the clamps 11 are pulled together by the extension coil spring 16, the respective wire grooves 17 and the grip grooves 18 form rhombic and perfect circular tapers, respectively, as shown by the solid lines in FIG. ing.

 Hereinafter, the operation of the present embodiment will be described.

In this embodiment, in connecting the hanging wire 2 and the winding grip 8, first, the end of the hanging wire 2 and both ends 8a and 8b of the winding grip 8 are held in a predetermined positional relationship to support the winding grip. The tool is inserted into the wire groove 17 and the grip groove 18 formed in the clamp 12 of the tool, respectively. At this time, the worker squeezes the hand lever 10 to expand the clamp 11 right and left via the connecting lever 15, thereby facilitating the insertion of the suspension line 2 and the winding grip 8. Next, the worker confirms that the positioning has been performed, and releases the hand lever 10. Then, the clamps 11 are automatically closed by the tension coil spring 16, and the ends of the suspension wire 2 and both ends 8a, 8b of the winding grip 8 are fixed in a state where they are positioned as shown in FIG. You.

Thus, the suspension line 2 and the winding grip 8 are positioned and
After being secured, the worker is free to use both hands. Therefore, the worker can handle both ends 8 of the winding grip 8.
a, 8b, which can be wound around the suspension line 2 at the same time. In addition, in this embodiment, since the worker does not need to hold the hanging wire 2 and the winding grip 8, when a gust of wind blows, the winding operation can be interrupted and the body can be secured. Was. It is to be noted that the winding grip support tool of this embodiment is also used for positioning and fixing the supporting wire 4 and the supporting wire to the winding grip 8 as a matter of course. Further, since the grip groove 18 has a tapered shape, the thimble 7 and the winding grip 8 attached to the free band 5 are provided.
This tool can be used even when the diameters are different.

As described above, in the above embodiment, the clamp 11 is released by grasping the hand lever 10, and the clamp 11 is closed by the urging force of the extension coil spring 16, and the support wires such as the suspension line 2, the branch line 4, and the support line, and the winding grip. 8 is positioned and fixed, so that the work can be performed quickly and its safety is improved. However, aspects of the present invention are not limited to this embodiment. For example, a compression coil spring or the like may be used as the urging means of the clamp 11, or a simple configuration may be adopted in which one end of the clamp 11 is a hinge and the other end is fastened by a wing nut or the like.

<Effect of the Invention> According to the positioning tool for a winding grip according to the present invention,
Since the support wire and the winding grip are squeezed and gripped with the support wire positioned between both ends of the winding grip, the relative positional relationship between the support wire and the winding grip is maintained. In addition, both ends of the winding grip can be simultaneously wound around the support wire, so that work efficiency and safety and reliability can be greatly improved. In particular, by urging the gripping member in the closing direction by a spring,
The work of fixing the winding grip and the support wire is facilitated by the gripping member.

[Brief description of the drawings]

FIG. 1 is a front view showing a winding grip positioning tool according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line BB in FIG. 1, and FIG. 3 uses the winding grip positioning tool in the embodiment. It is sectional drawing which shows the aspect of the joining operation | work which was performed. FIG. 4 is a schematic view showing an example of an installation mode of telephone poles, FIG. 5 is an enlarged view of a portion A in FIG. 4, and FIGS. 6 and 7 are explanatory views showing steps of a conventional joining operation. . In the drawing, 1 is a telephone pole, 2 is a hanging wire, 7 is a thimble, 8 is a winding grip, 10 is a hand lever, 11 is a clamp, 12 is a center block, 15 is a connecting lever, 16 is a tension coil spring, and 17 is a support wire. Reference numeral 18 denotes a groove for a winding grip.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuo Asano 1 Tayacho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Tokio Kawanabe 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Nippon Telegraph and Telephone Corporation (72) Inventor Minoru Shiragata 1 to 6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References Real Public 50-50637 (JP, Y1) (58) Surveyed fields (Int.Cl. ⁶ , DB name) H02G 1/02 H02G 7/02 E04H 12/20

Claims (2)

(57) [Claims] 1. A winding grip positioning tool for positioning a winding grip used for retaining a support wire with respect to the support wire, comprising: a pair of gripping members, a pair of hand levers, and the gripping member and the gripping member. A pair of connecting levers connected to a hand lever and pivoting about a pin penetrating the center block, wherein the support wire and both ends of the winding grip are supported between the both ends of the winding grip; A winding grip positioning tool characterized in that the wire is pinched and gripped in a state where the wire is positioned. 2. The device according to claim 1, wherein said gripping member is urged by a spring in a direction of clamping and gripping.
A winding grip positioning tool according to item 1.