JP2007185076A - Intermediate holding device for distribution line - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intermediate holding device for a distribution line which allows an existing electric wire to hold a newly installed electric wire in branch-connecting the newly installed electric wire in the midway part of the existing electric wire between electric poles, instead of connecting the newly installed electric wire to the existing electric wire on one electric pole side, when the newly installed electric wire is branched-connected to the existing electric wire bridged between the electric poles. <P>SOLUTION: The intermediate holding device 3 for a distribution line holds the newly installed electric wire 5 in the vicinity of the branched-connected portion 41 of the existing electric wire 1. The device is constituted of a clamping means 7 for clamping near the connection end of the newly installed electric wire 5; a newly installed electric wire holding means 9 having a grasping section 31 grasping the existing electric wire 1; and a connecting means 11 for connecting the clamping means 7 to the newly installed electric wire holding means 9 to hold the newly installed electric wire 5, in the vicinity of the branched-connected portion 41 of the existing electric wire 1 via the newly installed electric wire holding means 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an intermediate holding device for a distribution line used when branching a new electric wire to an existing electric wire installed between utility poles.

  2. Description of the Related Art Conventionally, when a new electric wire is branched and connected to an existing electric wire installed between utility poles, for example, an intermediate holding device a for distribution lines as shown in FIG. 6 is used. In this intermediate holding device a, three levers c are rotatably fitted on one shaft b, and two holding members d divided into two forks between the adjacent levers c are interposed between the three holding members d. Each insulator c is made to correspond to three existing electric wires e arranged in parallel in the vertical direction.

  And in order to branch-connect the new electric wire f to the existing electric wire e using this intermediate holding device a, each of the three new electric wires f on one electric pole g side of the adjacent electric pole g (left side in FIG. 6). One end is connected to each of the three existing electric wires e. In FIG. 6, a specific connection state is omitted. Next, these new electric wires f are extended along the existing electric wires e to the branch points, the intermediate holding device a is arranged at the points, and the three new electric wires f are wound around the three insulators c, respectively. The direction of the wiring is changed to 90 degrees, and one end of the wire h is connected to the base ends of the two holding members d, and the other end is attached with tension applied to the other power pole g side (right side in FIG. 6). The intermediate holding device a is prevented from dropping from the newly installed electric wire f.

  However, since this prior art does not relate to a known literature invention, there is no prior art document information to be described.

  However, in the wiring work using the intermediate holding device a, when the new electric wire f is branched and connected to the existing electric wire e, the new electric wire f is placed along the existing electric wire e from one electric pole g to the branching location. If the branch point is far away from one of the utility poles g, a new electric wire f is required for a long time and costs are increased. Further, since the intermediate holding device a is pulled to the other electric pole g side by the wire h so as not to drop off the newly installed electric wire f, the number of parts is increased by the amount necessary for the wire h, and the cost is further increased. Furthermore, until the wire h is connected to the other power pole g, the operator must hold the intermediate holding device a, and must also work to pull the wire h and connect it to the other power pole. Wiring work is complicated. Moreover, a landscape will also be inhibited with a wire.

  The present invention has been made in view of the above points, and the object of the present invention is to connect the new electric wire to the existing electric wire on one electric pole side when branching the new electric wire to the existing electric wire installed between the electric poles. Instead of connecting, it was decided to connect to the middle part of the existing electric wire between the utility poles, and at this time, a new device for holding the new electric wire on the existing electric wire was developed.

  In order to achieve the above object, the present invention provides a distribution line that is installed near a branch connection point of an existing electric wire and holds the new electric wire when branching the new electric wire to a middle portion of the existing electric wire installed between utility poles. The following solutions were taken for the intermediate holding device.

  That is, the invention described in claim 1 includes: clamping means for gripping the vicinity of a connection end of a new electric wire; new electric wire holding means having a holding portion for holding an existing electric wire; and the clamping means and the new electric wire holding means. And a connecting means for connecting and holding the new electric wire in the vicinity of the branch connection location of the existing electric wire via the new electric wire holding means.

  According to a second aspect of the present invention, in the intermediate holding device for a distribution line according to the first aspect, a non-slip material is provided on the inner surface of the clamping portion.

  According to the invention of claim 1, since the new electric wire is branched and connected to the middle portion of the existing electric wire between the utility poles, compared to the case where the new electric wire is wired along the existing electric wire from one electric pole to the branch point. In addition, a new electric wire in the meantime is unnecessary, and the wiring work can be performed at low cost with a short new electric wire. In addition, since the new electric wire is attached near the branch connection point of the existing electric wire with the intermediate holding device, it is not necessary to pull the intermediate holding device with the wire to the other power pole side as in the prior art, and the cost is as much as the wire is not needed. It can be further reduced and the landscape can be prevented from being adversely affected. Furthermore, the wire connection work and the holding work of the intermediate holding device therebetween are not required, and the wiring work can be easily performed.

  According to the invention which concerns on Claim 2, since the motion of the intermediate holding | maintenance apparatus with respect to the existing electric wire is controlled with the antiskid material of the clamping part inner surface, a new electric wire can be attached to an existing electric wire stably.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows three new electric wires 5 using an intermediate holding device 3 for distribution lines according to an embodiment of the present invention in the middle of three existing electric wires 1 installed between upper and lower electric poles (not shown). Are shown in a state of being branched and connected. The intermediate holding device 3 is mainly used when a new utility pole cannot be provided due to traffic conditions, location circumstances, cost reduction, etc., and is roughly divided into a clamping means 7 and a new electric wire holding means. 9 and the connecting means 11 for connecting the clamping means 7 and the new electric wire holding means 9 to each other. Each component will be specifically described below.

  First, the clamp means 7 will be described. As shown in FIG. 2, the clamp means 7 includes a first clamp member 13 that supports the newly installed electric wire 5 from below and a second clamp member 15 that presses down from above, and the first clamp member 13 and the second clamp member. 15, the vicinity of the connection end portion of the new electric wire 5 is held by both the clamp members 13, 15 through the new electric wire 5. The first clamp member 13 and the second clamp member 15 are housed inside the cover 17.

  Next, the new electric wire holding means 9 will be described. As shown in FIGS. 3 to 5, the new electric wire holding means 9 is formed by superposing a pair of metal plate-like members 19 vertically. A substantially half region of each of the plate-like members 19 is a flat mating plate portion 21, and two bolt insertion holes (not shown) are formed in the mating plate portion 21. A semi-circular bulging portion 23 is formed in the. An L-shaped lever mounting plate portion 25 is formed at one end of the mating plate portion 21, and a bolt insertion hole 27 is formed at the center of the lever mounting plate portion 25. The pair of plate-like members 19 configured in this manner are overlapped with the mating plate portions 21 and fastened with bolts 29 so that the insulator mounting plate portions 25 are separated from each other, and the bulging portions 23 are overlapped with each other to form a cylinder. A shaped clamping part 31 is formed, and the existing electric wire 1 is clamped by the clamping part 31. A rubber non-slip material 33 is affixed to the inner surface of the clamping part 31 (the bulging part 23).

  Next, the connecting means 11 will be described. The connecting means 11 includes a roller-like insulator 35 and a connecting wire 37, and a bolt insertion hole (not shown) is formed in the insulator 35 so as to penetrate vertically. The lever 35 is rotatably mounted on a shaft 39 between both lever mounting plate portions 25 of the new electric wire holding means 9. The connecting wire 37 has an intermediate portion wound around the insulator 35 and both ends are attached to the first clamp member 13 of the clamping means 7, and connects the clamping means 7 and the new electric wire holding means 9. 5 is held in the vicinity of the branch connection location 41 of the existing electric wire 1 via the new electric wire holding means 9.

  A procedure for branching and connecting the new electric wire 5 to the existing electric wire 1 using the intermediate holding device 3 configured as described above will be described.

  In addition, as the intermediate holding device 3 used for wiring work, the clamp means 7 and the newly installed electric wire holding means 9 are connected by the connecting means 11. However, the bolts 29 on both sides of the holding part 31 of the new electric wire holding means 9 are removed.

  First, the connection end portion side of the new electric wire 5 is inserted between the first clamp member 13 and the second clamp member 15 of the clamp means 7 and supported by the first clamp member 13 from below, and the second clamp from above. The member 15 is pressed to grasp the vicinity of the connection end of the newly installed electric wire 5.

  Next, the intermediate holding device 3 is disposed in the vicinity of the branch connection point 41 of the existing electric wire 1, and the upper and lower mating plate portions 21 of the new electric wire holding means 9 are widened away from each other, and the existing electric wire 1 is branched by the holding portion 31. After clamping the vicinity of the connection location 41, the bolt 29 is inserted into the bolt insertion holes at both ends of the clamping part 31, and the mating plate part 21 is fastened. In this state, tension is applied so that the newly installed electric wire 5 is not pulled and bent.

  Next, the covering of the connecting end of the new electric wire 5 is peeled off, the covering of the connecting portion of the existing electric wire 1 is peeled off, the exposed core wires are overlapped and brought into contact with each other, and both are compressed by the compression sleeve 43, 1 is connected to the new electric wire 5.

  The above wiring operation is similarly performed on the upper and lower three electric wires (see FIG. 1).

  In the intermediate holding device 3 for distribution lines configured in this way, the new electric wire 5 is branched and connected to the middle portion of the existing electric wire 1 between the utility poles, so that the new electric wire 5 is already installed from one utility pole to the branch connection point 41. Compared with the case of wiring along the electric wire 1, the new electric wire 5 between them is unnecessary and the short new electric wire 5 can be wired at low cost. Moreover, since the new electric wire 5 is attached in the vicinity of the branch connection point 41 of the existing electric wire 1 by the intermediate holding device 3, there is no need to pull the intermediate holding device a to the other electric pole g side with the wire h as in the prior art. Costs can be further reduced as much as the wire h is not needed, and the landscape can be prevented from being adversely affected. Further, the wire connecting work and the holding work of the intermediate holding device a therebetween are not required, and the wiring work can be easily performed. Further, the new electric wire holding means 9 for holding the new electric wire 5 has a holding portion 31 to hold the existing electric wire 1, and further, an intermediate holding device 3 for the existing electric wire 1 with a non-slip material 33 on the inner surface of the holding portion 31. Therefore, the new electric wire can be stably attached to the existing electric wire 1.

  The present invention is useful for an intermediate holding device for distribution lines that is used when a new electric wire is branched and connected to an existing electric wire installed between utility poles.

It is a perspective view which shows the state which made the existing electric wire branch-connect to the existing electric wire using the intermediate | middle holding | maintenance apparatus for distribution lines which concerns on embodiment. It is a principal part enlarged view of FIG. It is a top view of a new electric wire holding means. It is a side view of a new electric wire holding means and a connection means. It is a perspective view of a new electric wire holding means. It is a figure which shows the use condition of the conventional intermediate | middle holding | maintenance apparatus for distribution lines.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Existing electric wire 3 Intermediate | middle holding | maintenance apparatus for distribution lines 5 Newly installed electric wire 7 Clamping means 9 Newly installed electric wire holding means 11 Connecting means 31 Holding part 33 Anti-slip material 35 Insulator (connecting means 11)
37 Mounting wire (connection means 11)
41 Branch connection point

Claims (2)

An intermediate holding device for distribution lines that is installed near the branch connection location of an existing electric wire and holds the new electric wire when branch connecting the existing electric wire to a middle part of the existing electric wire installed between the power poles,
Clamping means for gripping the vicinity of the connection end of the newly installed electric wire;
A new electric wire holding means having a holding part for holding an existing electric wire;
An intermediate holding device for distribution lines, comprising: coupling means for connecting the clamp means and the new electric wire holding means to hold the new electric wire in the vicinity of a branch connection position of the existing electric wire via the new electric wire holding means. . In the intermediate holding device for distribution lines according to claim 1,
An intermediate holding device for a distribution line, wherein a non-slip material is provided on an inner surface of the holding portion.

Images