JP5730937B2 - Electric wire support - Google Patents

Description

  The present invention relates to an electric wire support, and more particularly, to an electric wire support effective for preventing a cut distribution line from falling during an operation of cutting a distribution line from the middle of the span by an indirect hot wire method.

  Conventionally, as shown in FIG. 7, when the distribution line 21 is cut from the middle of the span by the indirect hot wire method, both sides of the cut portions of the distribution lines 22 to 24 are supported by the strain rod 25, and the distribution line is in this state. By cutting 22-24 from a cutting location, it has prevented that the cut distribution lines 22-24 fall.

  By the way, when the distribution lines 22 to 24 are supported by the strain rod 25, tension is applied to the distribution lines 22 to 24 by the strain rod 25, and the distribution lines 22 to 24 are loosened in the vicinity of the cut portions. Since the electric wires 22 to 24 are cut from the cut portions, the load concentrates on the attachment portion 27 (clamp or the like) that attaches the distribution wires 22 to 24 to the utility pole 26, and the distribution wires 22 to 24 become the attachment portions of the utility pole 26. There is a risk of disconnection from 27 and falling. For this reason, it is necessary to work with great care to cut the distribution lines 22 to 24 from the middle of the span to prevent the disconnected distribution lines 22 to 24 from falling.

In order to deal with the above problems, for example, it is conceivable to apply a technique as described in Patent Document 1.
The technique described in Patent Document 1 is configured to hold a distribution line between an electric wire holder and a slide holder, and each of the three-phase distribution lines is held between each electric wire holder and the slide holder. By doing so, the three-phase distribution lines can be held together.

  Using the technology described in Patent Document 1 (wire temporary supporter), by holding the three-phase distribution lines, the distribution lines are cut in order to cut each distribution line from the middle of the span. Each side of the location is supported by strain rods, tension is applied to each distribution line by the strain rods, and the load concentrates on the mounting part where each distribution line is attached to the utility pole. Even if it is disconnected, the distribution line can be supported by another distribution line via the temporary electric supporter, so that the disconnected distribution line does not fall.

Japanese Patent Laid-Open No. 10-164716

  However, the technique described in Patent Document 1 is based on an insulating rod, an electric wire holder fixed to three portions of the insulating rod, a slide holder provided in a portion corresponding to each electric wire holder of the insulating rod, and an insulating rod. In addition to being provided in parallel to each other, it has a complicated structure comprising a connecting rod supported by a pin mounted in a slide groove of each slide holder, a spring for urging the connecting rod in the axial direction of the insulating rod, and the like. For this reason, it takes time and effort to manufacture, and the manufacturing cost is high.

  Moreover, since adjustment of the space | interval between adjacent electric wire holders (slide holder) cannot be performed, it cannot apply to the various distribution paths from which the space | interval between distribution wires differs.

  The present invention has been made in view of the above-described conventional problems, and can be easily manufactured, can reduce manufacturing costs, and can be applied to various distribution paths having different intervals between distribution lines. It aims at providing the electric wire support tool which can do.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention includes a first distribution line, the second distribution line, and the third the three distribution line of the distribution line made of a three distribution line of the distribution line to a wire support for supporting integrally A first wire support that is attached to the first distribution line, the second distribution line, and the third distribution line by individually holding the first distribution line, the second distribution line, and the third distribution line, respectively. A portion, a second wire support portion, a third wire support portion, between the first wire support portion and the second wire support portion, and between the second wire support portion and the third wire support portion. It is characterized by comprising a connecting rod for connecting each .

According to the wire support tool of the present invention, each of the first distribution line, the second distribution line, and the third distribution line is individually sandwiched by the first wire support part, the second wire support part, and the third wire support part. By doing so, the first wire support portion, the second wire support portion, and the third wire support portion are attached to the first distribution wire, the second distribution wire, and the third distribution wire , respectively . The two electric wire support portions and the second electric wire support portion and the third electric wire support portion are connected to each other via a connecting rod, and the first distribution line, the second distribution line, and the third distribution line are It will be supported integrally.
Thus, addition of the first distribution line, the second distribution line, and in the case of performing the work of cutting each of the third distribution line, the first distribution line, the second distribution line, and tension by strain rods to a third distribution line Thus, even if the first distribution line, the second distribution line, and the third distribution line are disconnected from the mounting portion of the utility pole, the disconnected first distribution line, second distribution line, and third distribution line are the first. Since it can be supported by the second distribution line, the third distribution line, and the first distribution line that are adjacent to each other via the wire support part, the second wire support part, and the third wire support part , the disconnected first distribution It can prevent that an electric wire, a 2nd distribution line, and a 3rd distribution line fall.

  Moreover, in this invention, the said connection rod may be comprised so that expansion-contraction is possible.

  According to the wire support tool of the present invention, the distance between adjacent wire support portions can be expanded and contracted by expanding and contracting the connecting rod, so that it can be applied to various distribution line paths having different intervals between distribution lines. it can.

In the present invention, the connecting rod includes a fixing screw connected to each frame of the first electric wire support portion, the second electric wire support portion, and the third electric wire support portion, and the first electric wire support portion. Between the fixing screw of the second electric wire support portion and the fixing screw of the second electric wire support portion and between the fixing screw of the second electric wire support portion and the fixing screw of the third electric wire support portion. The connecting rod may be screwed, and the connecting rod may be rotated to expand and contract the entire length of the connecting rod.

According to the electric wire support of the present invention, the entire length of the connecting rod can be expanded and contracted by rotating the movable screw to one or the other with respect to the fixed screw, and the frame of the first electric wire support portion and the second electric wire The distance between the frame of the support part and the frame of the second wire support part and the frame of the third wire support part can be adjusted. Therefore, the present invention can be applied to various distribution line paths having different intervals between distribution lines.

In the present invention, the first electric wire support portion, the second electric wire support portion, and the third electric wire support portion include a frame, a tightening screw that is screwed to the frame so as to be able to advance and retreat, and the tightening screw. It is good also as providing the pushing metal fitting which clamps the said distribution line between the inner surfaces of the said frame while being provided in the front-end | tip.

According to the wire support of the present invention, the first wire supporting portion, the second wire supporting portion, and a first distribution line between the frame inner surface and press fitting the third wire supporting portion, the second distribution line, and The first distribution line is supported by inserting the third distribution line and moving the fastening screw forward and backward to pinch the first distribution line, the second distribution line, and the third distribution line between the inner surface of the frame and the metal fitting. Part, the 2nd electric wire support part, and the 3rd electric wire support part are attached to the 1st distribution line, the 2nd distribution line, and the 3rd distribution line, respectively .

  Further, in the present invention, each frame has a substantially C shape with one side opened, and the fastening screw is screwed in the vicinity of one end of the frame, and the fastening screw is attached to the other end of the frame. It is good also as being comprised so that advance / retreat is possible to a direction.

  According to the electric wire support of the present invention, the distance between the inner surface of the frame and the metal fitting at the tip of the tightening screw can be changed by moving the tightening screw forward and backward in the direction of the other end of the frame.

Moreover, in this invention, the said 1st electric wire support part, the said 2nd electric wire support part, and the said 3rd electric wire support part are provided in the predetermined space | interval so that each frame may face the same direction. It is good as well.

According to the wire support tool of the present invention, when attaching the first wire support portion, the third wire support portion, and the third wire support portion to each of the first distribution wire, the second distribution wire, and the third distribution wire. Since the 1st electric wire support part, the 2nd electric wire support part, and the 3rd electric wire support part can be attached from the same direction of the 1st distribution line, the 2nd distribution line, and the 3rd distribution line , the 1st distribution line, The attachment work of the 1st electric wire support part to the 2nd distribution line and the 3rd distribution line , the 2nd electric wire support part, and the 3rd electric wire support part can be performed efficiently.

As described above, according to the wire support tool of the present invention, when the distribution line composed of the three distribution lines of the first distribution line, the second distribution line, and the third distribution line is cut from the middle of the span. In addition, even if the first distribution line, the second distribution line, and the third distribution line to be disconnected are disconnected from the mounting portion of the utility pole, the disconnected first distribution line, second distribution line, and third distribution line are Since it does not fall, the operation | work which cut | disconnects a distribution line from the middle of a span can be performed safely.

It is explanatory drawing which showed the state which attached the electric wire support of 1st Embodiment by this invention to the distribution line. It is the sectional view on the AA line of FIG. It is explanatory drawing which showed the procedure which cuts a distribution line from the middle of a span, Comprising: It is explanatory drawing which showed the state which attached the electric wire support tool shown in FIG. 1 to the distribution line. It is explanatory drawing which showed the procedure which cuts a distribution line from the middle of a span, attaches the electric wire support shown in FIG. 1 to a distribution line, attaches a strain rod to both sides of the cutting part of each distribution line, It is explanatory drawing which showed the state cut | disconnected from the cutting location. It is explanatory drawing which showed the state which attached the electric wire support of 2nd Embodiment by this invention to the distribution line. It is explanatory drawing which showed the state which attached the electric wire support of 3rd Embodiment by this invention to the distribution line. It is explanatory drawing which showed the method of cut | disconnecting the conventional distribution line way from the middle of span.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment of an electric wire support according to the present invention. The electric wire support 1 of this Embodiment is applied to the operation | work which cuts the distribution line 21 from the middle of a span by the indirect hot wire construction method, for example, and prevents that the distribution lines 22-24 cut | disconnected from the middle of a span fall. It is effective to do.

  As shown in FIG. 1, the wire support 1 of the present embodiment includes three wire support portions 2a, 2b, and 2c that are provided parallel to each other at a predetermined interval, and an adjacent wire support portion 2a. Connecting rods 8a and 8b for connecting between 2b and 2b to 2c, respectively.

The wire support portions 2a to 2c have a substantially C shape with one side open, and are framed with a screw hole 4 provided in the vicinity of one end thereof, screwed into the screw hole 4 of the frame 3, and frame 3 A rod-like clamping screw 5 that can be advanced and retracted in the direction of the other end of the screw, and a pressing metal 6 that is pivotally attached to the tip of the clamping screw 5 via a swivel joint or the like. Is provided with an operation portion 5a to which an indirect hot line tool 7 (shown by an imaginary line in FIG. 1) described later can be attached.
In the present embodiment, the three wire support portions 2a to 2c are arranged in parallel at a predetermined interval so that the frames 3 of the three wire support portions 2a to 2c face the same direction. Yes.

  On the upper surface of the pressing metal 6, a concave portion 6 a made of a curved surface having a predetermined curvature is provided so as to face the thickness direction of the frame 3 (a direction orthogonal to the paper surface). Distribution lines 22-24 are clamped between the curved surface 3a.

  As shown in FIG. 2, the pressing metal 6 is provided with a locking claw 6 b at an end on the frame 3 side, and the locking claw 6 b is engaged with a locking groove 3 b provided along the inner surface of the frame 3. By stopping, the press fitting 6 is prevented from rotating around the axis of the fastening screw 5 on the inner surface side of the frame 3.

  The connecting rod 8 includes a first connecting rod 8a that connects the frame 3 of the first wire support portion 2a and the frame 3 of the second wire support portion 2b, and the frame 3 and the third wire of the second wire support portion 2b. A second connecting rod 8b that connects the support portion 2c and the frame 3 is provided.

  The first connecting rod 8a includes a first fixing screw 9a connected to the back portion of the frame 3 of the first electric wire support portion 2a and a second fixing screw 9b connected to the front portion of the frame 3 of the second electric wire support portion 2b. And a movable screw 10 connecting the first fixing screw 9a and the second fixing screw 9b.

  The first fixing screw 9a is provided with a left male screw or a right male screw, and the second fixing screw 9b is provided with a right male screw or a left male screw whose direction is opposite to that of the first fixing screw 9a. Female screws are provided on the left half and the right half on the inner surface side of the movable screw 10 so as to correspond to the first fixing screw 9a and the second fixing screw 9b, respectively.

  The second connecting rod 8b includes a first fixing screw 9a connected to the back portion of the frame 3 of the second electric wire support portion 2b, and a second fixing screw 9b connected to the front portion of the frame 3 of the third electric wire support portion 2c. And a movable screw 10 connecting the first fixing screw 9a and the second fixing screw 9b.

  The first fixing screw 9a is provided with a left male screw or a right male screw, and the second fixing screw 9b is provided with a right male screw or a left male screw whose direction is opposite to that of the first fixing screw 9a. Female screws are provided on the left half and the right half on the inner surface side of the movable screw 10 so as to correspond to the first fixing screw 9a and the second fixing screw 9b, respectively.

  The first connecting rod 8a and the second connecting rod 8b and the movable screw 10 of the first connecting rod 8a and the second connecting rod 8b configured as described above are used to move the movable screw 10 of the first connecting rod 8a and the second connecting rod 8b. Can be expanded or contracted, the distance between the first electric wire support portion 2a and the second electric wire support portion 2b, and the second electric wire. The space | interval of the support part 2b and the 3rd electric wire support part 2c can be expanded / contracted.

  In addition, the 1st connection rod 8a and the 2nd connection rod 8b are not restricted to a thing of the above structures, Between the 1st electric wire support part 2a and the 2nd electric wire support part 2b, and the 2nd electric wire support part 2b What is necessary is just to be able to connect between the 3rd electric wire support part 2c so that expansion / contraction is possible.

  And using the electric wire support 1 of this Embodiment comprised as mentioned above, the distribution line 21 which consists of several distribution lines 22-24 by an indirect hot wire construction method (in this Embodiment, three-phase power distribution) In order to cut the line 21) from the middle of the span, first, the first connecting rod 8a and the second connecting rod 8b of the electric wire support 1 are expanded and contracted, and the first electric wire support portion 2a and the second electric wire support portion 2b, Between the second distribution line 23 and the third distribution line 24, between the second distribution line 23 and the third distribution line 24, between the second distribution line 23 and the third distribution line 24. Match each one.

Next, as shown in FIG. 1, the first distribution line 22 is inserted between the frame 3 of the first electric wire support portion 2 a and the press fitting 6, and the frame 3 and the press fitting 6 of the second electric wire support portion 2 b are inserted. The second distribution line 23 is inserted between the third distribution line 24 and the third distribution line 24 is inserted between the frame 3 of the third electric wire support part 2c and the presser fitting 6, and the indirect hot wire is connected to the operation part 5a of each fastening screw 5. By attaching the tool 7 and tightening the tightening screw 5 via the indirect hot wire tool 7, the first distribution line 22, the second distribution line 23, and the first distribution line are provided between the inner surface of each frame 3 and the upper surface of the pressing metal 6. The three distribution lines 24 are respectively clamped, and the first distribution line 22, the second distribution line 23, and the third distribution line 24 are respectively connected to the first distribution line support part 2 a, the second distribution line support part 2 b, and the third distribution line support part 2 c. Attach to. Thereby, as shown in FIG. 3, the first distribution line 22 and the second distribution line 23, and the second distribution line 23 and the third distribution line 24 are held together via the wire support 1. Will be.
In addition, as an indirect hot wire tool 7, a straight tongue etc. are mentioned, for example.

  Next, as shown in FIG. 4, the strain rods 25 are respectively attached between the distribution lines 22 to 24 on both sides of the cut portions of the distribution lines 22 to 24, and tension is applied to the distribution lines 22 to 24 by the strain rod 25. Thereby, slack is produced near the cutting part of each distribution line 22-24, and the cutting part of each distribution line 22-24 is cut with a cutting tool in this state.

  In this case, for example, by applying tension to the first distribution line 22 by the strain rod 25, the load concentrates on the attachment portion 27 of the first distribution line 22 to the utility pole 26, and the first distribution line 22 is connected to the utility pole 26. Even if the connection portion 27 is disconnected from the position indicated by the x mark in the drawing, the first distribution line 22 in which the disconnection has occurred is supported by the second distribution line 23 and the third distribution line 24 via the wire support 1. Therefore, the first distribution line 22 in which the disconnection has occurred is not dropped, and the cutting operation of the first distribution line 22 can be performed safely.

  Similarly, when the second distribution line 23 is cut, even if the second distribution line 23 is disconnected from the attachment portion 27 to the utility pole 26, the disconnected second distribution line 23 is connected via the wire support 1. The first distribution line 22 and the third distribution line 24 are supported. Further, when the third distribution line 24 is cut, even if the third distribution line 24 is disconnected from the attachment portion 27 to the utility pole 26, the disconnected third distribution line 24 is connected via the wire support 1. The two distribution lines 23 and the first distribution line 22 are supported.

  In the electric wire support 1 of this Embodiment comprised as mentioned above, when performing the operation | work cut | disconnected from the middle of the span of the distribution line 21 by an indirect hot wire method, the distribution lines 22-24 by the strain rod 25 are performed. Even if the distribution lines 22 to 24 are disconnected from the mounting portion 27 to the utility pole 26 by applying tension to the distribution lines 22 to 24, the distribution lines 22 to 24 that are adjacent to each other via the wire support 1 are disconnected. Can be supported.

  Therefore, the disconnected distribution lines 22 to 24 do not fall, and the operation of cutting the distribution line 21 from the middle of the span can be performed safely.

  Moreover, the electric wire support 1 connects between the 1st electric wire support part 2a and the 2nd electric wire support part 2b with the 1st connection rod 8a, and between 2nd electric wire support part 2b and the 3rd electric wire support part 2c. Can be easily manufactured, and the manufacturing cost can be reduced.

  Moreover, since the three electric wire support parts 2a-2c are arrange | positioned at predetermined intervals so that each flame | frame 3 may face the same direction, each electric wire support part is provided in each distribution line 22-24 of the distribution line 21. When attaching 2a-2c, since the fastening screw 5 of each electric wire support part 2a-2c can be fastened from the same direction, the attachment work to each distribution line 22-24 of each electric wire support part 2a-2c is efficient. It can be carried out.

  Further, by extending and contracting the first connecting rod 8a and the second connecting rod 8b, between the first wire support portion 2a and the second wire support portion 2b, and between the second wire support portion 2b and the third wire support portion 2c. Since the distance between the distribution lines 22 to 23 and 23 to 24 can be adjusted, the distance between the distribution lines 22 to 23 and the distance between the distribution lines 21 can be applied to an operation for cutting from the middle of the span.

  FIG. 5 shows a second embodiment of the wire support according to the present invention. The wire support 11 of the present embodiment includes a first wire support 2a, a second wire support 2b, a frame 3 of the first wire support 2a, and a frame 3 of the second wire support 2b. The connecting rod 8 to be connected is provided, and other configurations are the same as those shown in the first embodiment.

Since the electric wire support 11 of this Embodiment is provided with the two electric wire support parts 2a and 2b, it is applicable to the operation | work which cuts the single-phase (two-phase) distribution line 21 from the middle of a span, for example. it can.
And even if it exists in the electric wire support 11 of this Embodiment, when there exists an effect similar to what is shown to the said 1st Embodiment, and when cutting each distribution line 22-23 of the distribution line 21, Even if each distribution line 22-23 is disconnected from the attachment part 27 to the utility pole 26, the distribution lines 22-23 in which the disconnection occurred can be supported by the adjacent distribution lines 22-23 via the wire support tool 11. Since it can do, the cutting operation of the distribution lines 22-23 can be performed safely.

  FIG. 6 shows a third embodiment of the wire support 12 according to the present invention. The electric wire support 12 of the present embodiment arranges the two electric wire support portions (the first electric wire support portion 2a and the second electric wire support portion 2b) so as to be bilaterally symmetric, and the frame of the first electric wire support portion 2a. 3 and the lower part of the frame 3 of the second wire support portion 2b are connected by a connecting rod 8, and the other configurations are the same as those shown in the first and second embodiments. is there.

  Since the electric wire support of this Embodiment is provided so that the 1st electric wire support part 2a and the 2nd electric wire support part 2b may become left-right symmetric, for example, the single-phase (two-phase) distribution line 22 ~ 23, the electric wire support portions 2 a and 2 b are attached to the distribution wires 22 to 23 from above, the indirect hot wire tool 7 is attached to the operation portion 5 a of each fastening screw 5, and the fastening screw 5 is attached via the indirect hot wire tool 7. It can be used such as tightening from the inside of each distribution line 22-23.

  And even if it exists in the electric wire support 12 of this Embodiment, there exists an effect similar to what is shown to the said 1st Embodiment and 2nd Embodiment.

  In each of the above embodiments, the wire support fittings 11 to 12 according to the present invention are applied to the operation of cutting the distribution line 21 from the middle of the span. However, the present invention is not limited to this, and the cut wire is prevented from dropping. You may apply the electric wire support of this invention to the various places which need to do.

DESCRIPTION OF SYMBOLS 1 Electric wire support tool 2 Electric wire support part 2a 1st electric wire support part 2b 2nd electric wire support part 2c 3rd electric wire support part 3 Frame 3a Curved surface 3b Locking groove 4 Screw hole 5 Clamping screw 5a Operation part 6 Push metal 6a Concave part 6b Engagement Stopper 7 Handle 8 Connecting rod 8a First connecting rod 8b Second connecting rod 9 Fixing screw 9a First fixing screw 9b Second fixing screw 10 Movable screw 11 Electric wire support 12 Electric wire support 21 Distribution line 22 First distribution line 23 Second distribution line 24 Third distribution line 25 Strain rod 26 Utility pole 27 Mounting part

Claims (6)

The first distribution line, the second distribution line, and the third the three distribution line of the distribution line made of a three distribution line of the distribution line to a wire support for supporting integrally
A first wire support that is attached to the first distribution line, the second distribution line, and the third distribution line by individually holding the first distribution line, the second distribution line, and the third distribution line, respectively. A portion, a second wire support portion, a third wire support portion, between the first wire support portion and the second wire support portion, and between the second wire support portion and the third wire support portion. An electric wire support comprising a connecting rod for connecting to each other .   The wire connecting tool according to claim 1, wherein the connecting rod is configured to be extendable and contractible. The connecting rod includes a fixing screw connected to a frame of each of the first electric wire support portion, the second electric wire support portion, and the third electric wire support portion, and the fixing screw of the first electric wire support portion. A movable screw that is rotatably screwed between the fixed screw of the second electric wire support portion and between the fixed screw of the second electric wire support portion and the fixed screw of the third electric wire support portion. The electric wire support according to claim 2, wherein the entire length of the connecting rod is expanded and contracted by rotating the movable screw. The first electric wire support portion, the second electric wire support portion, and the third electric wire support portion are provided on a frame, a tightening screw that is screwed to the frame so as to advance and retreat, and a tip of the tightening screw, The electric wire support according to any one of claims 1 to 3, further comprising a pressing metal fitting for sandwiching the distribution line with an inner surface of the frame.   Each frame has a substantially C shape with an opening on one side, and the fastening screw is screwed in the vicinity of one end of the frame so that the fastening screw can advance and retreat in the direction of the other end of the frame. The electric wire support according to claim 4, wherein the electric wire support is provided. The first electric wire support portion, the second electric wire support portion, and the third electric wire support portion are provided at predetermined intervals so that the respective frames face the same direction. Item 6. The electric wire support according to Item 4 or 5.

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