Electric wire tool and electric wire working method

Abstract

To provide an electric wire tool and an electric wire working method excellent in operability and safety.SOLUTION: The wire-tool 1 is used when a wire is cut or connected, and has a long core material 2, a first holding part 3A arranged in the core material 2 and holding the wire, and a second holding part 3A arranged in the core material 2 separately from the first holding part 3B and holding the wire. The core member 2 is flexibly deformed in at least a partial region between the first holding portion 3A and the second holding portion 3B, and can maintain the shape after the flexible deformation.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a tool for electric wires and a method for working with electric wires. [Background technology]

[0002] For example, Patent Document 1 describes a cutting aid for high-voltage down-wires used when cutting and reconnecting electric wires. The cutting aid for high-voltage down-wires includes a tubular body including a first tubular body and a second tubular body slidable relative to the first tubular body, a first clip attached to the first tubular body for gripping the down-wire, and a second clip attached to the second tubular body for gripping the down-wire. This cutting aid for high-voltage down-wires is used as follows: First, the high-voltage down-wire is gripped by the first and second clips while the tubular body is contracted. Next, the high-voltage down-wire is cut between the two locations gripped by the first and second clips. The tubular body then naturally extends to a predetermined length due to its own weight. This causes the ends of the high-voltage down-wire to separate from each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-074826 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the high-voltage drop line cutting aid of Patent Document 1 requires the tubular body to be contracted before use and the length of the tubular body when extended to be determined, making it difficult to use. Furthermore, with the high-voltage drop line cutting aid of Patent Document 1, even though the first and second clips can be separated by extending the tubular body, the relative orientation of the first and second clips cannot be changed. As a result, the ends of the high-voltage drop lines remain facing each other, making it difficult to ensure high safety.

[0005] The object of the present invention has been made in consideration of the above-mentioned problems, and is to provide a wire tool that is easy to operate and highly safe, and a highly safe wire work method using the wire tool. [Means for solving the problem]

[0006] Such an object can be achieved by the present invention described below.

[0007] (1) A tool for cutting or connecting electric wires, A long core material and a first holding portion disposed on the core member and holding the electric wire; a second holding portion that is disposed on the core material and spaced apart from the first holding portion and that holds the electric wire, A tool for electric wires, characterized in that the core material is flexibly deformed in at least a portion of the area between the first holding portion and the second holding portion, and is capable of maintaining the shape after the flexibly deformed.

[0008] (2) The tool for handling an electric wire according to (1), wherein the first holding portion and the second holding portion are each rotatable around the central axis of the core material relative to the core material.

[0009] (3) The tool for handling an electric wire according to (1), wherein the first holding portion and the second holding portion are fixed in position relative to the core material in the longitudinal direction of the core material.

[0010] (4) The tool for handling an electric wire according to (1) above, wherein the core material is made of metal.

[0011] (5) The tool for electric wire according to (4) above, which has an insulating protective coating covering the core material.

[0012] (6) The tool for an electric wire according to (1), wherein the first holding portion and the second holding portion are clips that grip the electric wire.

[0013] (7) The tool for electric wires according to (6), wherein the clip has a pair of holding arms that open and close around the central axis of the core material.

[0014] (8) The tool for handling an electric wire according to (1) above, wherein the distance between the first holding portion and the second holding portion is 30 cm or more and 60 cm or less.

[0015] (9) The first holding portion is disposed at one end of the core material, The tool for electric wire according to (1) above, wherein the second holding portion is disposed at the other end of the core material.

[0016] (10) A long core material; a first holding portion disposed on the core member and holding the electric wire; a second holding portion that is disposed on the core material and spaced apart from the first holding portion and that holds the electric wire, a tool for an electric wire in which the core material is flexibly deformed in at least a part of a region between the first holding portion and the second holding portion and can maintain the shape after the flexibly deformed; an attachment step of holding the electric wire at intervals in an extending direction thereof with the first holding portion and the second holding portion, respectively; a cutting step of cutting the electric wire at a location between the first holding portion and the second holding portion.

[0017] (11) After the cutting step, The wire work method according to (10) above, further comprising a direction changing step of flexibly deforming the core material to orient the cutting portion of the wire in a predetermined direction.

[0018] (12) After the cutting step, a connecting step of connecting the cut portions of the electric wire; The wire working method according to (10) above, further comprising a detaching step of detaching the wire tool from the wire. [Effects of the Invention]

[0019] According to the electric wire tool of the present invention, the core material is configured to flexibly deform in at least a portion of the region between the first holding portion and the second holding portion and to maintain the shape after the flexural deformation. Therefore, for example, while an electric wire is held by each of the first and second holding portions, it is possible to cut the electric wire between two locations held by the first and second holding portions, and then simply by flexibly deforming (bending, twisting, etc.) the core material, it is possible to separate the ends of the electric wire or change the orientation of the electric wire so that the ends do not face each other. This results in an electric wire tool that is excellent in operability and has a high level of safety. Furthermore, according to the electric wire work method of the present invention, the use of the above-mentioned electric wire tool allows for a high level of safety. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 10 is a diagram showing the wire tool attached to an edge wrapping wire. [Figure 2] FIG. 2 is a plan view of the wire tool shown in FIG. [Figure 3] FIG. [Figure 4] FIG. 10 is a plan view showing a modified example of the core material. [Figure 5] FIG. 10 is a plan view showing a modified example of the core material. [Figure 6] FIG. 2 is a cross-sectional view showing a protective coating. [Figure 7] FIG. 10 is a cross-sectional view showing a modified example of the protective coating. [Figure 8] FIG. 10 is a cross-sectional view showing a modified example of the protective coating. [Figure 9] FIG. 4 is a side view showing the first holding portion and the second holding portion. [Figure 10] FIG. 3 is a cross-sectional view showing a first holding portion and a second holding portion. [Figure 11] 1 is a flowchart showing the steps of wire work. [Figure 12] FIG. [Figure 13] FIG. [Figure 14] FIG. [Figure 15]FIG. [Figure 16] FIG. [Figure 17] FIG. [Figure 18] FIG. [Figure 19] FIG. [Figure 20] 10A and 10B are diagrams showing another method of using the wire tool. [Figure 21] 10A and 10B are diagrams showing another method of using the wire tool. [Figure 22] 10A and 10B are diagrams showing another method of using the wire tool. [Figure 23] 10A and 10B are diagrams showing another method of using the wire tool. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given based on embodiments of a wire tool and a wire working method according to the present invention.

[0022] The wire tool 1 shown in Fig. 1 is a tool used during wire work, for example, when cutting or connecting a wiring edge wire 9 that is installed between the ends of two low-voltage wires 8A and 8B coming from both sides of a utility pole and connects these two low-voltage wires 8A and 8B. As shown in Fig. 2, this wire tool 1 has a long core material 2, a first holding portion 3A and a second holding portion 3B arranged at both ends of the core material 2, and a protective coating 5 and caps 61 and 62 that cover the core material 2. Each of these parts will be described in order below.

[0023] First, the core material 2 will be described. The core material 2 undergoes flexibly deformation (bending deformation, twisting deformation, etc.) in at least a portion of the region Q between the first holding portion 3A and the second holding portion 3B due to the strength of the worker's arm, and can maintain its shape after flexibly deformation against the stress it receives during wire work. With this configuration, simply by flexibly deforming the core material 2, the relative positional relationship between the first holding portion 3A and the second holding portion 3B can be easily changed, thereby achieving high workability. Furthermore, the simple operation ensures high safety.

[0024] In particular, the wire tool 1 has a significant advantage over conventional tools in that the relative positional relationship between the first holding portion 3A and the second holding portion 3B can be changed essentially continuously within the flexibility range of the core 2. Incidentally, in the above-mentioned Patent Document 1, the relative positional relationship between the first clip and the second clip can only be changed in two stages: when the tube is contracted and when the tube is extended.

[0025] The core material 2 of this embodiment is made of metal and is flexibly deformed over the entire length. This further improves the operability of the wire tool 1. By making the core material 2 from metal, the core material 2 has an appropriate hardness, specifically, as described above, a hardness that allows the core material 2 to be easily flexibly deformed by the worker's strength and to maintain its shape after flexibly deforming against stresses generated during wire work, and furthermore, a core material 2 with high strength. This results in a wire tool 1 that is highly operable and safe.

[0026] The metal material constituting the core material 2 is not particularly limited, but may be a relatively soft metal such as aluminum (including aluminum alloys), tin (including tin alloys), copper (including copper alloys), iron (including iron alloys), tungsten (including tungsten alloys), etc. In particular, the core material 2 of this embodiment is made of aluminum.

[0027] As shown in FIG. 3 , the core 2 is composed of a single wire and has a circular cross section. This configuration allows the core 2 to be equally flexible and deformed in all directions, including up, down, left, and right. The diameter of the core 2 is not particularly limited, but, for example, when the core 2 is made of aluminum as in this embodiment, it is preferably 5 mm to 20 mm, more preferably 5 mm to 10 mm. This diameter provides the core 2 with appropriate hardness, improving the operability and safety of the wire tool 1. The length of the core 2 is not particularly limited, but, for example, it is preferably 300 mm to 700 mm, more preferably 400 mm to 600 mm. This length ensures that the core 2 is of a length suitable for wire work, improving the operability of the wire tool 1.

[0028] The core material 2 has been described above. However, the configuration of the core material 2 is not limited as long as it is flexibly deformable in at least a portion of the region Q between the first retaining portion 3A and the second retaining portion 3B and can maintain its shape after deformation. For example, the core material 2 may be made of a material other than metal, such as a resin material. The cross-sectional shape of the core material 2 is not limited to a circle and may be, for example, a square, hexagon, or the like. For example, the core material 2 may be made of multiple relatively thin wires twisted together concentrically. For example, as shown in FIG. 4, a portion of the region Q1 within the region Q may be flexibly deformable, while the remaining regions are not. For example, such a configuration can be achieved by using different materials for the region Q1 and the remaining regions. For example, as shown in FIG. 5, multiple universal joints 20 may be arranged in series along the longitudinal direction, and the core material 2 may be bent at each universal joint 20.

[0029] Next, the protective coating 5 will be described. The protective coating 5 covers and insulates the core material 2. As shown in FIG. 3, the protective coating 5 has a first protective coating 51 that covers the core material 2 and a second protective coating 52 that covers the first protective coating 51. The first protective coating 51 and the second protective coating 52 each have insulating properties. Therefore, by covering the core material 2 with the protective coating 5, contact between the core material 2 and the edge routing wire 9 during wire work is prevented, ensuring the safety of the wire tool 1. Furthermore, the first protective coating 51 and the second protective coating 52 have sufficient flexibility so as not to hinder flexible deformation of the core material 2.

[0030] There are no particular limitations on the materials that can be used to form the first protective coating 51 and the second protective coating 52, and examples of such materials include resin materials such as PVC (polyvinyl chloride) and PE (polyethylene), and rubber materials such as PTFE (polytetrafluoroethylene silicone rubber). By using such materials, the first protective coating 51 and the second protective coating 52 can be formed inexpensively while being flexible and having high insulating properties.

[0031] In particular, in this embodiment, the first protective coating 51 is a tube made of PVC (polyvinyl chloride) and is capable of exhibiting excellent insulating properties. On the other hand, the second protective coating 52 is a tube made of silicone rubber and is capable of exhibiting excellent weather resistance. In other words, the protective coating 5 can achieve both high levels of insulating properties and weather resistance. In this way, by making the first protective coating 51 and the second protective coating 52 out of different materials and imparting different advantages (functions) to the first protective coating 51 and the second protective coating 52, the protective coating 5 can be made more reliable.

[0032] 3, mesh 521 formed by knitting fibers is embedded in second protective covering 52. By forming second protective covering 52 as a meshed tube in this way, the strength of protective covering 52 can be increased.

[0033] As shown in FIG. 6 , the first protective coating 51 has approximately the same length as the core material 2 and covers the entire longitudinal area of ​​the core material 2. In contrast, the second protective coating 52 is shorter than the core material 2 and covers the central portion of the core material 2 except for both end portions. Therefore, at both end portions of the protective coating 51, the first protective coating 51 is exposed from the second protective coating 52, and steps 531 and 532 are formed between the surface of the first protective coating 51 and the end face of the second protective coating 52. As will be described later, in the wire tool 1, the first holding portion 3A and the second holding portion 3B are positioned by abutting them against these steps 531 and 532. In other words, the protective coating 5 not only serves to insulate the core material 2 but also functions as a positioning portion that determines the positions of the first holding portion 3A and the second holding portion 3B. Therefore, the configuration of the wire tool 1 is simpler than when a separate positioning portion is provided, making it possible to reduce the weight of the wire tool 1 and reduce manufacturing costs.

[0034] The second protective coating 52 is also optically transparent, allowing the first protective coating 51 located underneath to be seen through the second protective coating 52. In particular, in this embodiment, the second protective coating 52 is substantially colorless and transparent. This allows breakage or damage to the first protective coating 51 to be quickly detected. This further enhances the safety of the wire tool 1.

[0035] The protective coating 5 has been described above. However, the configuration of the protective coating 5 is not particularly limited. For example, the second protective coating 52 may be omitted from the protective coating 5. In this case, for example, as shown in FIG. 7, steps 531, 532 may be formed by making the thickness of both ends of the first protective coating 52 thinner than the thickness of the center portion, or as shown in FIG. 8, ring-shaped stoppers 551, 552 may be fixed to the outer circumferential surface of the first protective coating 52 to form the steps 531, 532. Furthermore, for example, the second protective coating 52 may be further covered with third, fourth, etc. protective coatings. Furthermore, for example, when the core material 2 is made of an insulating material, the protective coating 5 may be omitted.

[0036] Next, the caps 61 and 62 will be described. Both of these caps 61 and 62 are insulating. As shown in FIG. 6 , the cap 61 is placed over one end of the first protective covering 51 (core material 2) to cover one end face of the core material 2. Meanwhile, the cap 62 is placed over the other end of the first protective covering 51 (core material 2) to cover the other end face of the core material 2. By covering both end faces of the core material 2 with the insulating caps 61 and 62 in this manner, contact between the core material 2 and the edge routing wire 9 during wire work is prevented, ensuring the safety of the wire tool 1. Note that, in order to prevent the caps 61 and 62 from coming off, it is preferable to firmly fix the caps 61 and 62 to the first protective covering 51 using an adhesive or the like. This improves the safety of the wire tool 1.

[0037] The material for forming the caps 61 and 62 is not particularly limited, and may be, for example, a resin material such as PVC (polyvinyl chloride), PE (polyethylene), or PC (polycarbonate), or a rubber material such as PTFE (polytetrafluoroethylene silicone rubber). By using such materials, the caps 61 and 62 having high insulating properties can be formed inexpensively.

[0038] Furthermore, the caps 61, 62 have a different color from the first protective coating 51. For example, the caps 61, 62 are black, and the first protective coating 51 is red, blue, yellow, or the like. This configuration allows the caps 61, 62 to be easily identified, and any detachment of the caps 61, 62 can be quickly detected. This further enhances the safety of the wire tool 1.

[0039] 6 , a step 541 is formed at one end of the protective coating 5 between the surface of the first protective coating 51 and the end face of the cap 61, and a step 542 is formed at the other end of the protective coating 5 between the surface of the first protective coating 51 and the end face of the cap 62. As will be described later, the first holding portion 3A and the second holding portion 3B abut against these steps 541, 542, preventing the first holding portion 3A and the second holding portion 3B from separating from the core material 2. In other words, the caps 61, 62 not only provide an insulating coating for the core material 2 but also function as separation prevention portions that prevent the first holding portion 3A and the second holding portion 3B from separating. Therefore, the configuration of the wire tool 1 is simpler than when a separate separation prevention portion is provided, allowing for reductions in the weight and manufacturing costs of the wire tool 1.

[0040] The caps 61 and 62 have been described above. However, the configuration of the caps 61 and 62 is not particularly limited. For example, the caps 61 and 62 may be the same color as the first protective coating 51. Furthermore, for example, if both end surfaces of the core material 2 are already covered with the first protective coating 51 or the like, the caps 61 and 62 may be omitted.

[0041] Next, the first holding portion 3A and the second holding portion 3B will be described. As shown in FIG. 2, the first holding portion 3A is disposed at one end (one end) of the core material 2, and the second holding portion 3B is disposed at the other end (the other end) of the core material 2. By disposing the first holding portion 3A and the second holding portion 3B at both ends of the core material 2 in this way, it is possible to shorten the overall length of the core material 2 while ensuring a large distance between the first holding portion 3A and the second holding portion 3B. In addition, the core material 2 is prevented from protruding outward beyond the first holding portion 3A and the second holding portion 3B. This results in a compact and highly maneuverable wire tool 1.

[0042] Since the first holding portion 3A and the second holding portion 3B have the same configuration, they will be collectively referred to as "holding portion 3" below.

[0043] The holding portion 3 is a clip that holds (clamps) the edge wrapping wire 9. By configuring the holding portion 3 as a clip in this way, the edge wrapping wire 9 can be easily and reliably held. The holding portion 3 can hold edge wrapping wires 9 with different outer diameters. Specifically, because the outer diameter of a typical edge wrapping wire 9 is 7 mm or more and 23 mm or less, the holding portion 3 is configured to suitably hold edge wrapping wires 9 with outer diameters in this range. As shown in FIGS. 9 and 10 , the holding portion 3 has a pair of holding arms 31, 32 that rotate in opposite directions around a rotation axis J to open and close and hold (clamp) the edge wrapping wire 9, and a torsion spring 33 that biases the holding arms 31, 32 in a closing direction.

[0044] The holding arm 31 is made of an insulating material such as a resin material. The holding arm 31 has an action portion 311 located distally of the rotation axis J, an operation portion 312 located proximally of the rotation axis J, and a pair of connection portions 313 and 314 located between the action portion 311 and the operation portion 312 and spaced apart in a direction along the rotation axis J. A non-slip surface 311a made of a rubber material is provided on a surface of the action portion 311 that comes into contact with the edge wrapping line 9 (a surface facing an action portion 321, described later). Insertion holes 313a and 314a for inserting the core material 2 are formed in the pair of connection portions 313 and 314, and these two insertion holes 313a and 314a are arranged along the rotation axis J.

[0045] The holding arm 32 has the same configuration as the holding arm 31 described above. That is, the holding arm 32 is made of an insulating material such as a resin material. The holding arm 32 also has an action portion 321 located distally of the rotation axis J, an operation portion 322 located proximal to the rotation axis J, and a pair of connection portions 323 and 324 located between the action portion 321 and the operation portion 322 and spaced apart in a direction along the rotation axis J. A non-slip surface 321a made of a rubber material is provided on a surface of the action portion 321 that comes into contact with the edge wrapping wire 9 (a surface facing the action portion 311). The pair of connection portions 323 and 324 also have insertion holes 323a and 324a for inserting the core material 2, and these two insertion holes 323a and 324a are arranged along the rotation axis J. Furthermore, connecting portion 323 is inscribed in connecting portion 313, and connecting portion 324 is circumscribed in connecting portion 314. In other words, the outer main surface of connecting portion 323 is in contact with the inner main surface of connecting portion 313, and the inner main surface of connecting portion 324 is in contact with the outer main surface of connecting portion 314.

[0046] The core 2 is then inserted into the insertion holes 313a, 314a, 323a, and 324a along with the first protective coating 51. Specifically, before the caps 61 and 62 are attached, the core 2 is inserted into the insertion holes 313a, 323a, 314a, and 324a in this order, with the end protruding from the insertion hole 324a. The caps 61 and 62 are then attached to the protruding end. Therefore, in the wire tool 1, the rotation axis J and the central axis of the core 2 coincide with each other.

[0047] The inner diameters of the insertion holes 313a, 314a, 323a, and 324a are equal to or slightly larger than the outer diameter of the first protective coating 51. The reaction force of the torsion spring 33 generates resistance by shearing the insertion holes 313a, 314a, 323a, and 324a. This creates a moderate sliding resistance between the first protective coating 51 and each holding arm 31, 32. This allows the operator to rotate the holding portion 3 around the pivot axis J relative to the core 2 using their own strength, and maintain the orientation of the holding portion 3 after rotation despite stresses experienced during wire handling. This configuration allows the relative positional relationship between the first and second holding portions 3A and 3B to be changed not only by the flexible deformation (bending deformation, torsional deformation, etc.) of the core 2 but also by the rotation of the holding portion 3 around the pivot axis J. This further improves the operability of the wire tool 1.

[0048] Two torsion springs 33 are located between the connecting portions 323, 324 and are provided spaced apart in a direction along the rotation axis J. Each torsion spring 33 has a coil 331, an arm 332 extending from one end of the coil 331, and an arm 333 extending from the other end of the coil 331. A core material 2 is inserted into the coil 331 of each torsion spring 33 along with the first protective coating 51. The inner diameter of each coil 331 is slightly larger than the outer diameter of the first protective coating 51. Each torsion spring 33 is disposed between the holding arms 31, 32 in a compressed state (with the coil 331 wound around it), with one arm 332 abutting against the operating portion 312 of the holding arm 31 and the other arm 333 abutting against the operating portion 322 of the holding arm 32. Therefore, the elasticity (restoring force) of each torsion spring 33 constantly biases the holding arms 31 and 32 in the closing direction.

[0049] In the holding unit 3 configured as described above, the operating units 312, 322 are pinched, the action units 311, 321 are opened against the elasticity of the torsion spring 33, the edge wrapping wire 9 is inserted between the action units 311, 321, and then the action units 311, 321 are closed to clamp the edge wrapping wire 9, thereby holding the edge wrapping wire 9. In particular, in this embodiment, the rotation axis J coincides with the central axis of the core material 2, so the holding arms 31, 32 rotate around the central axis of the core material 2 to open and close the holding unit 3. This improves the operability of the holding unit 3.

[0050] Here, in the wire tool 1, the outer main surface of the connecting portion 313 of the first holding portion 3A abuts against the step 531, and the outer main surface of the connecting portion 314 abuts against the step 541. That is, the first holding portion 3A is sandwiched between the steps 531 and 541. With this configuration, the first holding portion 3A cannot slide relative to the core material 2 in the longitudinal direction of the core material 2, and the position of the core material 2 in the longitudinal direction is fixed. Similarly, the outer main surface of the connecting portion 313 of the second holding portion 3B abuts against the step 532, and the outer main surface of the connecting portion 314 abuts against the step 542. That is, the second holding portion 3B is sandwiched between the steps 532 and 542. With this configuration, the second holding portion 3B cannot slide relative to the core material 2 in the longitudinal direction of the core material 2, and the position of the core material 2 in the longitudinal direction is fixed. In this way, by fixing the positions of the first and second holding portions 3A, 3B in the longitudinal direction of the core material 2, unnecessary movement of the first and second holding portions 3A, 3B can be restricted, thereby further improving the operability of the wire tool 1.

[0051] The distance between the first and second holding portions 3A and 3B when the core 2 is stretched straight, in other words, the length of the region Q of the core 2, is not particularly limited, but is preferably, for example, about 300 mm to 600 mm, and more preferably 400 mm to 500 mm. By setting the distance between the first and second holding portions 3A and 3B to such a length, the distance becomes suitable for wire work, and the operability of the wire tool 1 is improved.

[0052] The first retaining portion 3A and the second retaining portion 3B have been described above. However, the configuration of the first retaining portion 3A and the second retaining portion 3B is not particularly limited. For example, the first retaining portion 3A and the second retaining portion 3B do not have to be able to rotate around the central axis of the core material 2. Furthermore, the first retaining portion 3A and the second retaining portion 3B may be able to move relative to the core material 2 in the longitudinal direction of the core material 2. Furthermore, the number of torsion springs 33 may be one, or three or more.

[0053] Alternatively, for example, the inner diameters of the insertion holes 313a, 314a, 323a, and 324a may be equal to or slightly larger than the outer diameter of the first protective coating 51, and the inner diameter of each coil 331 may be smaller than the outer diameter of the first protective coating 51. That is, the core 2 may be press-fitted into each coil 331, rather than into the insertion holes 313a, 314a, 323a, and 324a. This configuration generates an appropriate sliding resistance between the first protective coating 51 and each coil 331. As in the present embodiment, the worker can rotate the holding portion 3 around the pivot axis J relative to the core 2 using their strength, and the orientation of the holding portion 3 after rotation can be maintained against stresses experienced during wire handling. Furthermore, the sliding resistance between the holding arms 31 and 32 and the first protective coating 51 can be kept small, making it easier to open and close the holding arms 31 and 32.

[0054] The above has described the configuration of the wire tool 1. Next, a description will be given of a wire work method using the wire tool 1. As shown in Fig. 11 , the wire work method includes an attachment step S1 of attaching the wire tool 1 to the edge routing wire 9, a cutting step S2 of cutting the edge routing wire 9, an orientation change step S3 of orienting the cutting ends 91, 92 of the edge routing wire 9 in a predetermined orientation, a connection step S4 of connecting the cutting ends 91, 92 of the edge routing wire 9 to each other, and a removal step S5 of removing the wire tool 1 from the edge routing wire 9.

[0055] In the attachment step S1, as shown in FIG. 12, the core material 2 is bent into a U-shape in advance, and the first and second holding portions 3A and 3B hold the edge wire 9 at intervals in the extension direction. Next, in the cutting step S2, as shown in FIG. 13, the edge wire 9 is cut at a location between the first and second holding portions 3A and 3B. Next, as shown in FIG. 14, in the orientation change step S3, the core material 2 is flexibly deformed or at least one of the first and second holding portions 3A and 3B is rotated relative to the core material 2 to separate the cut ends 91 and 92 of the edge wire 9 and orient each end in a predetermined direction. Next, as shown in FIG. 15, insulating end covers 90 are attached to the cut ends 91 and 92.

[0056] Then, in this state, predetermined necessary work is performed, and after the work is completed, the connecting step S4 is performed. As shown in Fig. 16, in the connecting step S4, the core material 2 is flexibly deformed, or at least one of the first holding portion 3A and the second holding portion 3B is rotated relative to the core material 2, so that the cut ends 91, 92 of the edge wiring 9 are returned to the positions at the time of cutting, and the end covers 90 are removed from the cut ends 91, 92. Then, the cut ends 91, 92 are stripped, and as shown in Fig. 17, the stripped cut ends 91, 92 are connected to each other with the sleeve 7. Next, in the detaching step S5, the wire tool 1 is removed from the edge wiring 9, as shown in Fig. 18. This completes the wire work.

[0057] According to this wire working method, the wire tool 1, which is easy to operate and safe, is used, and therefore high safety can be ensured. When storing the wire tool 1, for example, as shown in Fig. 19, the core 2 can be bent into a circular shape to enable compact storage.

[0058] While the wire tool and wire work method of the present invention have been described above based on the illustrated embodiments, the present invention is not limited to these, and the configuration of each part can be replaced with any configuration or process having a similar function. Furthermore, any other configuration or process may be added to the present invention.

[0059] The method of use of the wire cutting tool 1 is not limited to the above-described embodiment, and the wire cutting tool 1 can be suitably used for any wire cutting work. For example, as shown in FIG. 20 , the wire cutting tool 1 may be installed between ends of a low-voltage wire 8A and a low-voltage wire 8C branching off from a utility pole and attached to an edge wire 9A connecting these two low-voltage wires 8A and 8C. As shown in FIG. 21 , the wire cutting tool 1 may be installed between ends of a low-voltage wire 8A and a drop wire 8D leading to a building and attached to an edge wire 9B connecting the low-voltage wire 8A and the drop wire 8D. As shown in FIG. 22 , the wire cutting tool 1 may be installed to a riser wire 8E connecting a transformer 100 and the low-voltage wire 8A. As shown in FIG. 23 , the wire cutting tool 1 may be installed to an edge wire 9C installed between the riser wire 8E and the drop wire 8D and connecting the riser wire 8E and the drop wire 8D. [Explanation of symbols]

[0060] 1...wire tool, 100...transformer, 2...core material, 20...universal joint, 3...holding portion, 3A...first holding portion, 3B...second holding portion, 31...holding arm, 311...action portion, 311a...anti-slip portion, 311b...claw portion, 312...operation portion, 313...connection portion, 313a...insertion hole, 314...connection portion, 314a...insertion hole, 32...holding arm, 321...action portion, 321a...anti-slip portion, 321b...claw portion, 322...operation portion, 323...connection portion, 323a...insertion hole, 324...connection portion, 324a...insertion hole, 33...torsion spring, 331...coil, 332...arm, 333...arm, 5...protective coating , 51...first protective covering, 52...second protective covering, 521...mesh, 531...step, 532...step, 541...step, 542...step, 551...stopper, 552...stopper, 61...cap, 62...cap, 7...sleeve, 8A...low voltage wire, 8B...low voltage wire, 8C...low voltage wire, 8D...drop-in wire, 8E...rise wire, 9...edge wrapping wire, 9A...edge wrapping wire, 9B...edge wrapping wire, 90...terminal cover, 91...cutting end, 92...cutting end, J...rotating axis, Q...area, Q1...area, S1...mounting process, S2...cutting process, S3...direction changing process, S4...connecting process, S5...removing process

Claims

1. A wire tool used to cut or connect electric wires, A long core material and a first holding portion disposed on the core member and holding the electric wire; a second holding portion that is disposed on the core material and spaced apart from the first holding portion and that holds the electric wire, The tool for electric wires, characterized in that the core material is flexibly deformed in at least a portion of the region between the first holding portion and the second holding portion, and is capable of maintaining the shape after the flexibly deformed.

2. The wire tool according to claim 1 , wherein the first holding portion and the second holding portion are each rotatable around a central axis of the core member relative to the core member.

3. The wire tool according to claim 1 , wherein the first holding portion and the second holding portion are fixed in position relative to the core member in the longitudinal direction of the core member.

4. The wire tool according to claim 1 , wherein the core material is made of metal.

5. 5. The wire tool according to claim 4, further comprising an insulating protective coating covering the core material.

6. The wire tool according to claim 1 , wherein the first holding portion and the second holding portion are clips that grip the wire.

7. 7. The wire tool according to claim 6, wherein the clip has a pair of holding arms that open and close around the central axis of the core member.

8. The wire tool according to claim 1 , wherein the distance between the first holding portion and the second holding portion is 30 cm or more and 60 cm or less.

9. the first holding portion is disposed at one end of the core material, The wire tool according to claim 1 , wherein the second holding portion is disposed at the other end of the core member.

10. A long core material and a first holding portion disposed on the core member and holding an electric wire; a second holding portion that is disposed on the core material and spaced apart from the first holding portion and that holds the electric wire, a tool for an electric wire in which the core material is flexibly deformed in at least a part of a region between the first holding portion and the second holding portion and can maintain the shape after the flexibly deformed; an attachment step of holding the electric wire at intervals in an extending direction thereof with the first holding portion and the second holding portion, respectively; a cutting step of cutting the electric wire at a location between the first holding portion and the second holding portion.

11. This is carried out after the cutting step, The wire work method according to claim 10, further comprising a direction changing step of flexibly deforming the core member so that the cut portion of the wire faces a predetermined direction.

12. This is carried out after the cutting step, a connecting step of connecting the cut portions of the electric wire; The wire working method according to claim 10, further comprising a detaching step of detaching the wire tool from the wire.

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