JP5056659B2 - Utility pole rebuilding tool and utility pole rebuilding method - Google Patents

Description

  The present invention relates to a utility pole rebuilding tool and a utility pole rebuilding method for a utility pole rebuilding work.

  There are cases where the utility poles over which the electric wires are stretched need to be replaced when they are damaged by a traffic accident, tilted due to the tension of the electric wires, or have deteriorated due to aging. In such a case, the existing utility pole is removed and a new utility pole is installed to install a new utility pole. At this time, the new utility pole is often installed at the same position as the removed utility pole, that is, the original position, due to the existence of existing buildings around the utility pole and the wiring of the stretched wires.

  FIG. 11 is a diagram for explaining a conventional utility pole rebuilding work. Of the utility poles 10 (the utility poles 10a, 10b, and 10c) shown in FIG. 11 (a), when rebuilding the utility pole 10b, the conventional utility pole rebuilding work is first targeted for rebuilding as shown in FIG. 11 (b). The temporary power pole 12 is installed at a position adjacent to the power pole 10b (near the power pole 10b). Then, the electric wire 14 or the like mounted on the utility pole 10 b is moved to the temporary utility pole 12.

  Next, the utility pole 10b is removed as shown in FIG.11 (c), and the new utility pole 10d is installed in the position (original position) where the utility pole 10b existed as shown in FIG.11 (d). Then, as shown in FIG.11 (e), the temporary utility pole 12 is removed and a utility pole rebuilding construction is completed.

  However, in the above-described conventional utility pole rebuilding work, a temporary utility pole was always required at the time of construction, and it was necessary to install and remove two utility poles in order to replace one utility pole. For this reason, installation and removal of temporary utility poles require time and expense, leading to a reduction in work efficiency and an increase in cost. Moreover, in order to install the temporary utility pole, an occupation permit for temporarily borrowing the land to be installed is necessary, and a complicated procedure for obtaining such permission has been indispensable. Furthermore, when the construction site area is small, there is a problem that temporary utility poles cannot be installed.

As a technique related to the above-mentioned utility pole rebuilding work, for example, Patent Document 1 includes a main body and a messenger wire clamp attached to a messenger wire temporarily installed on two utility poles sandwiching the pole to be rebuilt, and below that An electric wire rebuilding auxiliary tool provided with an insulator for holding an electric wire installed on an electric pole to be rebuilt, and an electric pole rebuilding method using the electric wire rebuilding auxiliary tool are disclosed. According to this, it is said that it is possible to assist the rebuilding work of the utility pole with simple work and low cost.
JP 2007-195357 A

  With the technique described in Patent Literature 1, it has become possible to perform some of the utility pole rebuilding work without installing a temporary utility pole. As a result, problems such as work efficiency and cost associated with the installation of the above-described temporary power pole can be significantly improved. However, the technique described in Patent Document 1 may not be applied depending on the type of electric wire stretched around the utility pole to be rebuilt.

  An example of a utility pole to which such a technique is not applicable is a utility pole in which both a high-voltage electric wire and a low-voltage electric wire are stretched. Here, the electric wire stretched around the utility pole is roughly classified into two types, a low-voltage electric wire and a high-voltage electric wire, depending on the voltage of the flowing electricity. A low voltage electric wire is a low voltage, that is, an electric wire through which 100V (electric light line) or 200V (power line) is flowing, and a high voltage electric wire is an electric wire through which a high voltage, that is, electricity of 6600V flows. is there.

  When rebuilding a utility pole in which both the high-voltage and low-voltage cables are stretched, the construction is necessary unless both the wires are stretched on the electric wire reconstruction aid described in Patent Document 1. I can't do it. However, according to the interpretation of laws and regulations (for example, occupational safety and health regulations), it is not possible to stretch both high-voltage and low-voltage wires on the same hardware. Therefore, the electric wire rebuilding auxiliary tool described in Patent Document 1 cannot be used for the above-described electric pole rebuilding work. Alternatively, either high or low voltage power must be cut off.

  Another problem is securing the height of the electric wire from the ground. According to the interpretation of laws and regulations (for example, a ministerial ordinance that establishes technical standards related to electrical equipment), it is necessary to secure a predetermined height (for example, 5 m) from the ground. The electric wire rebuilding auxiliary tool described in Patent Document 1 is attached to a messenger wire laid between two power poles adjacent to a power pole to be rebuilt. Since the distance between the utility poles is generally about 30 to 40 m, and the messenger wire is twice as long, it is difficult to keep the height of the electric wire reconstruction aid above the ground. Moreover, the load applied to the adjacent power poles becomes excessive, and a great load is applied to the power poles adjacent to both sides.

  Moreover, if the electric wire rebuilding auxiliary tool is suspended by the adjacent utility pole, it is unstable and it is difficult to maintain the state for a long time (for example, several days). It needs to be completed. On the other hand, the electric power companies relocate the electric wires, but the communication companies relocate the communication lines that are the collocated structures. Also in electric power companies, there are many technical divergences between the construction of electric wires and the installation work of utility poles, so the construction teams are often separate. Therefore, it is extremely inefficient to arrange a plurality of business operators and construction teams at the same time, and it is extremely difficult to adjust the schedule and the waiting time increases.

  In view of such a problem, the present invention can safely perform the rebuilding work of the power pole without installing a temporary power pole, regardless of the type of the electric wire stretched on the power pole to be rebuilt, It is another object of the present invention to provide a utility pole rebuilding tool and a utility pole rebuilding method capable of improving work efficiency and reducing costs.

  In order to solve the above-mentioned problems, a representative configuration of the utility pole rebuilding tool according to the present invention is to remove a utility pole that stretches at least one of electric wires such as high-voltage wires and low-voltage wires, or communication wires, It is a utility pole rebuilding tool used for utility pole rebuilding work to install a new utility pole at the position where it was installed, with a pole, a utility pole fixture that can fix one end to the pole and the other end to the utility pole, and the top of the pole A hanging bracket for suspending the utility pole rebuilding tool with a crane hook, a holder for holding an electric wire or a communication line stretched on the utility pole, a holder can be attached and detached, and a support And a detachable armrest.

  In the said structure, the electric wire and communication line which were stretched by the utility pole used as rebuilding object are hold | maintained at the holder of the said utility pole rebuilding tool. And the hook of a crane is hooked to a hanging metal fitting, and the utility pole rebuilding tool holding the electric wire and the communication line is suspended by the crane, and the removal of the utility pole to be reconstructed and the installation of a new utility pole are performed during that time. Thereby, it is possible to carry out rebuilding work of the utility pole without installing a temporary utility pole. Therefore, it is possible to reduce the time and cost required to install and remove the temporary utility pole, and to improve the work efficiency and reduce the cost.

  In addition, according to the installation method using the utility pole replacement tool, the utility pole replacement tool may be suspended with a crane only from the time of unplugging the existing utility pole until the installation of a new utility pole. Can fix the utility pole replacement tool to the utility pole. Therefore, a stable state can be maintained even when the schedule of the relocation work is over a long period.

  The holder for holding the electric wire is a three-sided roller that encloses a space through which the electric wire is inserted by combining a plurality of rollers, and the roller may support the load of the electric wire in a rotatable state.

  In such a configuration, the electric wire is held by a three-sided roller that is a holder. Since such a three-sided roller has a space through which the electric wire is inserted, the electric wire is not clamped by the roller but is put on the roller. The rollers are individually rotatable and only support the load of the wire, and the wire can move smoothly in the horizontal direction, preventing damage to the wire sheath due to pinching and preventing damage to the wire. Can be prevented. Furthermore, since the load of the held electric wire is applied to the roller, the tensile load (load) applied to the adjacent electric pole can be reduced.

  The holding tool for holding the communication wire is a clamp having a wire material having a U-shaped lower end, and a stranded wire (stranded wire) extending along the communication wire is stretched over the clamp so that the wire material can slide on the stranded wire. The clamp may hold the communication line.

  In general, communication lines are easily damaged by refraction. For this reason, the occurrence of damage is prevented by keeping the communication line along the cable and making it easy to maintain the shape of the communication line. Therefore, in the above configuration, the shore line is stretched around a clamp that is a holder, and the communication line is indirectly held. Thereby, it is possible to prevent the occurrence of damage caused by directly holding the communication line.

  The electric pole rebuilding tool may further include a bypass cable support portion that supports a bypass cable that relays the high-voltage electric wire and temporarily distributes the high-voltage current.

  A bypass cable is a cable that temporarily circulates (bypasses) and distributes current flowing through an electric wire. Such a bypass cable has a higher insulation and safety than a high-voltage electric wire because the core wire is covered with multiple layers of coating. For this reason, the bypass cable can be stretched on an auxiliary tool or the like together with other electric wires.

  Therefore, in the above configuration, the high-voltage electric wire cut between the utility pole to be reconstructed and the adjacent utility pole, that is, the cut portion of the high-voltage electric wire stretched between the adjacent utility poles is connected to the bypass cable, The bypass cable is supported by the bypass cable support. And the high-voltage electric wire which is stretched around the electric pole of the reconstruction object after a cutting | disconnection and the electric current does not flow is moved to an electric pole reconstruction tool. Thereby, both the high-voltage electric wires and the low-voltage electric wires can be held by the utility pole reconstruction tool without interrupting the high-voltage current.

  The support column includes an expansion / contraction portion that can expand and contract in the axial direction of the support column between an electric wire support unit that supports a plurality of electric wires and a support object support unit that supports a plurality of communication lines as a co-mounted object. Good.

  In the extension of the electric wire and the communication line to the electric pole, the electric wire has a predetermined height from the ground described above, and is arranged at a predetermined distance from the upper end of the electric pole. The communication line is arranged at a predetermined height from the ground of the utility pole. Therefore, in the utility pole, the distance (interval) from the position where the electric wire is arranged to the position where the communication line is arranged varies depending on the length of the utility pole.

  On the other hand, in the said structure, a support | pillar is comprised from an electric wire support part and a collocated object support part, and is equipped with the expansion-contraction part which can be expanded-contracted to an axial direction between this electric wire support part and a collocated object support part. Therefore, even if the distance from the position where the electric wire is arranged to the position where the communication line is arranged is different for each electric pole to be rebuilt, it is possible to cope with it only by expanding and contracting the expansion / contraction part. Thereby, it is not necessary to perform operations such as changing the position by attaching and detaching the brace to which the holder is mounted from the support column, and the operation can be performed smoothly and efficiently.

  Said support | pillar is good to be divided | segmented into plurality.

  For example, when a support | pillar cannot be divided | segmented, the full length may be 6 m or more. As a result, the loading limit of the vehicle at the time of transportation to a work site or the like is exceeded, and transportation of the utility pole rebuilding tool by the vehicle becomes difficult. Therefore, according to said structure, it becomes possible to divide | segment a support | pillar into several and to convey the said utility pole rebuilding tool, without exceeding the load limitation of a vehicle. Moreover, since the support | pillar is divided | segmented into plurality, there is no fear of the inclination etc. at the time of handling of a support | pillar, and workability | operativity can be improved.

  Said support | pillar is good to have an annular part for attaching a rope.

  In the said structure, the auxiliary | assistant rope (safety belt) of the worker who works on a utility pole can be attached to an annular part, for example. Thereby, the safety | security of the worker who works at a high place can be improved. It is also possible to attach a rope to the annular part, hook a crane hook on the rope, and suspend the utility pole rebuilding tool.

  Said utility pole fixing tool is good to be able to expand-contract in a horizontal direction.

  Thereby, even if the distance of the electric wire or the communication line stretched around the utility pole from the utility pole is different for each utility pole to be rebuilt, it is possible to cope with it only by expanding and contracting the utility pole fixture. Further, when the existing power pole is tilted, the distance between the top and the bottom of the new power pole may be different, but this can be dealt with by the horizontal expansion and contraction of the power pole fixture.

  The above-mentioned utility pole fixing tool is preferably rotatable in the horizontal direction in the vicinity of the end on the support column side.

  With this configuration, after the utility pole fixture is removed from the utility pole, the utility pole side of the utility pole fixture can be separated from the utility pole. As a result, it is possible to prevent the utility pole fixture from interfering with the removal of the existing utility pole and the installation work of a new utility pole, thereby improving workability.

  In order to solve the above-mentioned problem, a typical configuration of the utility pole rebuilding method according to the present invention is to remove a utility pole that stretches at least one of electric wires such as high-voltage wires and low-voltage wires, or communication wires, A method of rebuilding a utility pole for installing a new utility pole at a location where it was installed. The utility pole rebuilding tool is attached to a utility pole that stretches either an electric wire or a communication line. The power pole rebuilding tool is held by the power pole rebuilding tool, the power pole rebuilding tool is suspended by a crane to support the load of the power pole or the communication line, the power pole replacement tool is removed from the power pole, and the power pole is removed. It is characterized by removing, installing a new utility pole, attaching a utility pole replacement tool to the new utility pole, and transferring electric wires or communication lines from the utility pole replacement tool to the new utility pole.

  The component based on the technical idea of the utility pole rebuilding tool described above and the description thereof are also applicable to the utility pole rebuilding method.

  According to the present invention, it is possible to safely perform the rebuilding work of the power pole without installing a temporary power pole, regardless of the type of the electric wire stretched on the power pole to be rebuilt, and the work efficiency of the work It is possible to provide a utility pole rebuilding tool and a utility pole rebuilding method capable of improving the cost and reducing the cost.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  In the following embodiments, in order to facilitate understanding, the utility pole rebuilding method according to this embodiment will be described first, and then the details of the utility pole rebuilding tool will be described.

[Power pole rebuilding method]
FIG. 1 is a diagram for explaining a utility pole replacement method, and FIG. 2 is a flowchart for explaining a utility pole replacement method. As shown in FIG. 1, an electric wire 102 is disposed (stretched) on the utility pole 100 at a predetermined height from the ground and at a predetermined distance from the upper end of the utility pole 100. The electric wire 102 is arranged (stretched) in this order from the upper end of the utility pole 100, the high-voltage electric wire 104 through which high-voltage (for example, 6600 V) electricity flows and the low-voltage electric wire 106 through which low-voltage (for example, 100 V or 200 V) electricity flows. ing. In addition, a communication line 108, for example, a telephone line, a cable for CATV, an optical cable for connecting to the Internet, and the like is disposed (stretched) at a predetermined height from the ground of the utility pole 100.

  When rebuilding, for example, the utility pole 100b among the utility poles 100 (electric poles 100a, 100b, and 100c) shown in FIG. 1 (a), first, as shown in FIG. 1 (b), the utility pole rebuilding tool 200 according to the present embodiment, It attaches to the utility pole 100b used as rebuilding object (S102). Next, as will be described later, the high voltage electric wire 104 is cut, and the high voltage current is relayed by the bypass cable (S104). Then, the electric wires 102 (the high-voltage electric wires 104 and the low-voltage electric wires 106) mounted on the utility pole 100b are moved to the utility pole rebuilding tool 200 (S106), and similarly, the collocated objects such as the communication line 108 are also moved (S108). .

  After the transfer is completed, as shown in FIG. 1 (c), the utility pole rebuilding tool 200 is suspended by a crane to support the load of the electric wire 102 or the communication line 108 (S110). Then, while the utility pole rebuilding tool 200 is suspended by a crane, the utility pole rebuilding tool 200 is removed from the utility pole 100b (S112), and the utility pole 100b that is not attached to anything is removed (S114). As shown in FIG. 1 (d), a new utility pole 100d is installed at the position (original position) where the utility pole 100b was located (S116), and the utility pole rebuilding tool 200 suspended at that position is attached and fixed to the new utility pole. (S118), the crane leaves. Thereafter, the electric wire 102 (the high-voltage electric wire 104, the low-voltage electric wire 106) transferred to the utility pole rebuilding tool 200 is transferred to the new utility pole 100d (S120), and the high-voltage electric wire 104 is connected and the bypass cable is removed (S122). Similarly, the collocated object such as the communication line 108 is also moved from the utility pole rebuilding tool 200 to the new utility pole 100d (S124). Finally, when the utility pole rebuilding tool 200 is removed as shown in FIG. 1 (e) (S126), the utility pole rebuilding work is completed.

[Power pole rebuilding tool]
Details of the utility pole rebuilding tool 200 according to this embodiment will be described below. FIG. 3 is a diagram illustrating the utility pole rebuilding tool 200 according to the present embodiment, FIG. 3A is a front view of the utility pole rebuilding tool 200, and FIG. 3B is a diagram of the utility pole rebuilding tool 200. It is a side view. Hereinafter, the utility pole replacement tool is simply referred to as a tool.

  As shown in FIGS. 3A and 3B, the utility pole rebuilding tool 200 (hereinafter abbreviated as “tool 200”) includes a support pole 210, a power pole fixing tool 220, a suspension fitting 230, and a holding member. The three-sided roller 241 and the clamp 248 as examples of the tool, the brace (252, 254, 256), the bypass cable support portion 260, and the annular portion 270 are configured. In addition, the tool 200 can be divided into an electric wire support 290 and a co-supporting object support 296, and the electric wire support 290 can be further divided into a high voltage electric wire support 292 and a low voltage electric wire support 294. .

  The column 210 is a vertical member in the tool 200, and can be formed of, for example, a cylindrical steel pipe. The support pole 210 is detachably attachable to the utility pole fixture 220, the braces (252, 254, 256), and the bypass cable support 260. Members other than the column 210 will be described in detail later.

  FIG. 4 is a diagram for explaining the details of the column 210. As shown in FIG. 4, the column 210 has a hanging metal fitting 230 at the top and an annular portion 270 on the side surface. The hanging metal fitting 230 and the annular portion 270 will be described later.

  Moreover, the support | pillar 210 can be divided | segmented into plurality like the support | pillar 210a, 210b, 210c, 210d. Adjacent struts 210a to 210d have different diameters, and other struts can be inserted at the end of one strut, and a fixing hole is provided in a direction perpendicular to the axial direction at these overlapping portions. And two struts can be fixed by penetrating a bolt in this fixing hole. This facilitates handling of the column 210 and allows the column 210 (tool 200) to be transported without exceeding the vehicle loading limit. The number of divisions is an example and is not limited to this.

  In addition, as shown to Fig.3 (a), the high voltage | pressure electric wire support part 292 is arrange | positioned at the support | pillar 210a, and the low voltage | pressure electric wire support part 294 is arrange | positioned at the support | pillar 210b. A co-supporting object supporting portion 296 is disposed on the fourth column 210d. As shown in FIG. 4, the support post 210c is provided with a number of fixing holes 212, and the fixing position of the support post 210d with respect to the support post 210c can be selected. That is, such a part is the expansion / contraction part 280, and the expansion / contraction part 280 is provided between the electric wire support part 290 and the collocated object support part 296. In other words, the expansion / contraction part 280 can adjust the distance between the electric wire support part 290 and the collocated object support part 296.

  Therefore, even if the distance from the position where the electric wire 102 is arranged to the position where the communication line 108 is arranged is different for each electric pole 100 to be rebuilt (even if the length of the electric pole is different), the expansion / contraction This can be dealt with by simply expanding and contracting the portion 280, and the work can be made smoother and more efficient.

  5A and 5B are diagrams for explaining details of the utility pole fixture 220. FIG. 5A is a front view of the utility pole fixture 220, and FIG. 5B is a side view of the utility pole fixture 220. FIG. The utility pole fixture 220 is a member (cross member) for fixing one end to the pole 210 and the other end to the utility pole 100 and attaching the pole 210 (tool 200) to the utility pole 100. Thereby, since the tool 200 can be fixed (attached) to the utility pole 100, a stable state can be maintained even when the transfer work of electric wires or the like takes a long time.

  As shown in FIGS. 5A and 5B, the utility pole fixture 220 includes two arms 222 a and 222 b, a utility pole attachment part 226, and a support pole attachment part 228. The tool 200 can be attached to the utility pole 100 by inserting and fixing the utility pole 100 to the utility pole attachment portion 226 and inserting and fixing the support post 210 to the support post attachment portion 228.

  The arm 222a can be inserted into the arm 222b. The arm 222b is provided with a fixing hole 224, and the arm 222a is provided with a long hole 223 through which the fixing pin 225 can be inserted. Accordingly, the arm 222a or the arm 222b can be slid in the horizontal direction (the direction indicated by the solid line in FIG. 5A), and the utility pole fixture 220 can be expanded and contracted in the horizontal direction. Therefore, when the distance between the electric wire 102 or the communication line 108 and the electric pole 100 is different for each electric pole 100 or when the electric wire 102 is in a tensioned state or a relaxed state, the electric pole fixing tool 220 is merely expanded and contracted. It becomes possible to cope with.

  Furthermore, the column attachment portion 228 can be rotated in the horizontal direction (the direction of the broken arrow in FIG. 5A). As a specific example of the structure, the arm 222b and the column mounting portion 228 can be rotated in the horizontal direction by the rotation shaft 228a, and the column mounting portion 228 is provided with a plurality of fixing holes 228b and penetrates the bolt 225. Therefore, the rotation can be restricted. Thereby, the electric pole fixing tool 220 can be rotated in the horizontal direction in the vicinity of the end portion on the column 210 side. Therefore, after removing the utility pole fixture from the utility pole, the utility pole side of the utility pole fixture can be separated from the utility pole. As a result, it is possible to prevent the utility pole fixture from interfering with the removal of the existing utility pole and the installation work of a new utility pole, thereby improving workability.

  The hanging metal fitting 230 is a member for hanging the tool 200 with a crane hook, and is arranged on the top of the column 210. As a result, the hook of the crane can be hooked on the hanging metal fitting 230, and the tool 200 can be hung by the crane. While the tool 200 is suspended, the utility pole 100 to be reconstructed can be removed and the new utility pole can be removed. It is possible to install the utility pole without installing the temporary utility pole.

  The holder includes a three-surface roller 241 that is a holder that holds the electric wire 102 and a clamp 248 that is a holder that holds the communication line 108. 6A and 6B are diagrams for explaining the details of the holder, in which FIG. 6A is a view of a three-sided roller 241 as a holder, and FIG. 6B is a view of a clamp 248 as a holder.

  The three-sided roller 241 holds the electric wire 102 (the high-voltage electric wire 104 and the low-voltage electric wire 106). As shown in FIG. 6A, the three-sided roller 241 is formed by combining a plurality of rollers 242a to 242c, and has a space through which the electric wire 102 is inserted. Due to the existence of such a space, the roller 242c only receives the load of the electric wire 102 and does not hold it. The rollers 242 are individually rotatable, only support the load of the electric wire 102, and the electric wire 102 can move smoothly in the horizontal direction. Thereby, the electric wire 102 is hung on the roller 242, and damage to the coating of the electric wire 102 can be prevented.

  Among the plurality of rollers 242a to 242c, the roller 242a and the roller 242b are connected by the connection plate 243a, and the roller 242b and the roller 242c are connected by the connection plate 243b.

  One end of the pin 245 that is the shaft of the roller 242a is connected to the rotating portion 244, and the other end is detachably fixed to the connection plate 243a. Therefore, when the pin 245 is removed and the rotating unit 244 is moved (rotated) in the direction of the solid line arrow, the roller 242a opens and closes in the direction of the broken line arrow. Thereby, the electric wire 102 stretched around the utility pole 100 can be accommodated in the space inside the three-sided roller 241. Then, by moving the rotating portion 244 and the roller 242a in the direction opposite to the arrow, the three-surface roller 241 is closed, and the electric wire 102 is held by the three-surface roller 241.

  The clamp 248 shown in FIG. 6B holds the shoreline 109 along the communication line 108 (the communication line is not shown in FIG. 6). The clamp 248 includes a wire 248a having a U-shaped lower end and a locking tool 248b. When the nut of the wire 248a is loosened and moved in the direction of the arrow, the tip of the U-shaped portion of the wire 248a comes out of the locking tool 248b and is in an open state. Then, a wire 109 along the communication line 108 is stretched around the U-shaped portion. Then, the nut is tightened and the locking tool 248b is moved in the direction opposite to the arrow to close the U-shaped portion. Thereby, the clamp 248 can support the slidable wire 109 slidably and can indirectly hold the communication wire 108. Therefore, it becomes possible to prevent the occurrence of damage due to holding the communication line 108 directly.

  FIG. 7 is a diagram for explaining details of the brace (252, 254, 256). FIG. 7A is a plan view of the bracelet (large) 252, FIG. 7B is a plan view of the bracelet (medium) 254, and FIG. 7C is a plan view of the bracelet (small) 256, FIG. 7 (d) is a diagram in which the brace (medium) 254 is connected. In addition, the difference of each brace (252,254,256) is the length, Comprising: There is no fundamental difference in a mechanism and a role.

  The arm metal (252, 254, 256) is a cross member of the tool 200, and can be formed of, for example, a square steel pipe. Such a brace (252, 254, 256) can be attached / detached to / from the support column 210, and can be attached / detached to / from the support 210 (three-sided roller 241, clamp 248). Therefore, the electric wire 102 or the communication line 108 is held by the holder, and the brace (252, 254, 256) to which the holder is attached is attached to the column 210, whereby the electric wire 102 or the communication line is attached to the column 210 (tool 200). 108 can be supported.

  As shown in FIG. 7 (a), the arm metal (large) 252 has a plurality of bolt holes 257 on the upper and lower surfaces (surfaces that become upper when attached to the support column), and the bolt holes 257 for attaching the holding tool. By using and fixing, the holder can be attached. The arm metal (large) 252 is fitted into the arm metal coupling fitting 258 and then fixed to the arm metal coupling fitting 258 using the bolt holes 257 in the same manner. The brace (large) 252 is attached to the strut 210 by tightening the strut 210 with the U bolt 259 of the brace coupling fitting 258. Here, the explanation has been given with reference to the arm metal (large) 252 as an example, but the same applies to the arm metal (medium) 254 shown in FIG. 7B and the arm metal (small) 256 shown in FIG. 7C. It has the composition of.

  In addition, by using a combination of a bracelet (large) 252, a bracelet (medium) 254, and a bracelet (small) 256 of different lengths, a bracelet of a desired length can be obtained in accordance with the installed electric wire or communication line. Can be installed. Furthermore, as shown in the joint support part 296 of FIG. 7D and FIG. 3A, the length of the arm metal can be set more freely by connecting a plurality of arm parts. Therefore, it is possible to reduce the cost of the arm metal by using the minimum number of members of the arm metal as three types.

  The bypass cable support unit 260 is connected to the high voltage electric wire 104 and supports a bypass cable that temporarily distributes a high voltage current. The bypass cable support 260 can be attached to and detached from the column 210. The bypass cable support portion 260 has a role of a bypass cable and is disposed in the low voltage electric wire support portion 294 as a position on the support column. Similarly, a clamp 248 is provided.

  As described above, the high voltage electric wire 104 cannot be stretched on the same hardware as the low voltage electric wire 106 or the like in a state where a current is flowing (charged state). Therefore, first, the high-voltage electric wire 104 is cut in the vicinity of the adjacent power pole, and the high-voltage current flowing through this is connected to a bypass cable having higher insulation and safety than the high-voltage electric wire 104. The high-voltage electric wires 104 through which no current flows are connected by bind wires or the like. Then, the bypass cable is supported by the bypass cable support 260, and the high-voltage electric wire 104 in a state where no current flows is held by the holder (three-sided roller 241). Thereby, the interruption of the high-voltage current accompanying the utility pole rebuilding work can be performed in a very short time, and both the high-voltage electric wire 104 and the low-voltage electric wire 106 can be stretched (supported) on the tool 200. It becomes.

  The annular portion 270 is provided on the column 210 and is a member for attaching a rope. Thereby, for example, an auxiliary rope (safety belt) of the worker can be attached to the annular portion 270, and the safety of work at a high place can be improved.

  Next, the electric wire support part 290 and the cooperating object support part 296 in the tool 200 comprised from the member demonstrated above are demonstrated. As described above, the tool 200 can be divided into the electric wire support part 290 and the co-supporting object support part 296, and the electric wire support part 290 can be subdivided into the high voltage electric wire support part 292 and the low voltage electric wire support part 294 (FIG. )reference).

  FIG. 8 is a diagram for explaining the high-voltage wire support 292. The high voltage electric wire support 292 supports (holds) the high voltage electric wire 104. The high-voltage electric wire support portion 292 uses a column 210 a including a hanging metal fitting 230 as a vertical member. A three-sided roller 241 is mounted as a holding tool on a brace (large) 252 as a cross member attached to the column 210a. In FIG. 8, the arm metal (large) 252 is used as the arm metal, but the present invention is not limited to this, and other metal arms (254, 256) may be used as necessary. .

  FIG. 9 is a diagram for explaining the low-voltage wire support 294. The low voltage electric wire support part 294 supports (holds) the low voltage electric wire 106. The low voltage electric wire support part 294 uses the column 210b as a vertical member. In FIG. 9, a brace (medium) 254 and a brace (small) 256 are used as the cross members used for the low-voltage wire support 294, but the present invention is not limited to this, and the brace (large) 252 is used. Can also be used.

  In the low voltage electric wire support 294, a low voltage electric wire 106, that is, a three-sided roller 241 that holds the electric wire 102 is attached to the arm metal (medium) 254 and the arm metal (small) 256 as a holder. A bypass cable support 260 is also attached to the support 210b.

  FIG. 10 is a diagram for explaining the conjoined object support portion 296. The collocated object support unit 296 supports (holds) a plurality of communication lines 108 that are collocated objects in the utility pole 100. The support member 296 has a column 210d as a vertical member. A brace (medium) 254 and a brace (small) 256 are used as the cross members attached to the column 210d. However, the brace (large) 252 can be used without being limited thereto. . In addition, in the collaborative object support portion 296, a clamp 248 that holds the communication line 108 is attached to the armband (medium) 254 and the armband (small) 256 as a holder.

  As described above, according to the tool 200 according to the present embodiment, the electric wire 102 and the communication line 108 stretched on the utility pole 100 are held by the holder of the tool 200, and the tool 200 is used by using the hanging metal fitting 230. Can be hung with a crane. Thereby, since the utility pole 100 to be reconstructed can be removed and a new utility pole can be installed while the tool 200 is suspended, it is possible to perform the rebuilding work of the utility pole 100 without installing the temporary utility pole 12. is there. Accordingly, the time and cost associated with the temporary utility pole 12 can be reduced, and the work efficiency can be improved and the cost can be reduced.

  In addition, since the tool 200 can be fixed (attached) to the utility pole to be rebuilt by the utility pole fixing tool 220, it is possible to maintain a stable state for a long period of time. Therefore, it is easy to adjust the schedule even if multiple operators and construction teams are involved in the work, such as electric power companies moving electric wires, telecommunications companies moving communication lines, and construction teams replacing utility poles. Thus, since no waiting time occurs, work can be performed efficiently.

  In other words, regardless of the type of electric cable stretched around the utility pole to be rebuilt, it is possible to safely perform the rebuilding work of the utility pole without installing a temporary utility pole, and to improve the work efficiency and cost. Can be reduced.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used as a utility pole rebuilding tool and a utility pole rebuilding method for a utility pole rebuilding work.

It is a figure explaining the utility pole rebuilding method concerning this embodiment. It is a flowchart explaining the utility pole replacement | exchange method concerning this embodiment. It is a figure explaining the utility pole rebuilding tool concerning this embodiment. It is a figure explaining the detail of a support | pillar. It is a figure explaining the detail of a utility pole fixing tool. It is a figure explaining the detail of a holder. It is a figure explaining the detail of a bracelet. It is a figure explaining a high voltage electric wire support part. It is a figure explaining a low voltage electric wire support part. It is a figure explaining a co-mounted object support part. It is a figure explaining the conventional utility pole rebuilding construction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Electric pole, 100 ... Electric pole, 102 ... Electric wire, 104 ... High voltage electric wire, 106 ... Low voltage electric wire, 108 ... Communication line, 109 ... Cable, 12 ... Temporary electric pole, 200 ... Electric pole rebuilding tool, 210 ... Post, 210a ... Posts 210b ... posts 210c ... posts 210d ... posts 212 ... fixing holes 220 ... electric pole fixtures 222 ... arms 222a ... arms 222b ... arms 223 ... long holes 225 ... bolts 226 ... electric pole mounting Part, 228 ... post attaching part, 228a ... rotary shaft, 228b ... fixing hole, 230 ... hanging metal fitting, 241 ... three-sided roller, 242 ... roller, 242a ... roller, 242b ... roller, 242c ... roller, 243a ... connecting plate, 243b ... Connecting plate, 244 ... Rotating part, 245 ... Pin, 247 ... Clamp, 247a ... Wire, 247b ... Locking tool, 248a ... Wire, 248b Locking device, 252 ... arm metal (large), 254 ... arm metal (medium), 256 ... arm metal (small), 257 ... bolt hole, 258 ... arm metal coupling fitting, 259 ... bolt, 260 ... bypass cable support 270: Annular part, 280 ... Stretching part, 290 ... Electric wire support part, 292 ... High voltage electric wire support part, 294 ... Low voltage electric wire support part, 296 ... Conjoined object support part

Claims (10)

Electric pole rebuilding tool used for power pole rebuilding work to remove a power pole that stretches at least one of electric wires such as high-voltage electric wires and low-voltage electric wires, or communication wires, and to install a new electric pole at the position where the electric pole was installed Because
A strut,
A utility pole fixture capable of fixing one end to the pillar and the other end to the utility pole;
A suspension fitting that is arranged at the top of the column and suspends the utility pole rebuilding tool with a crane hook,
A holder for holding the electric wire or communication line stretched around the utility pole;
An electric pole rebuilding tool comprising: a brace that is detachable from the holder and detachable from the support. The holder for holding the electric wire is a three-sided roller that combines a plurality of rollers and encloses a space through which the electric wire is inserted,
The utility pole rebuilding tool according to claim 1, wherein the roller supports the load of the electric wire in a rotatable state. The holding tool for holding the communication line is a clamp having a wire material having a U-shaped lower end,
3. The clamp according to claim 1, wherein the clamp holds the communication line by stretching a cable along the communication line on the clamp, and the wire rod slidably supports the cable. The utility pole rebuilding tool described.   The said utility pole rebuilding tool is further equipped with the bypass cable support part which supports the bypass cable which relays the said high voltage electric wire, and distribute | circulates a high voltage current temporarily, The any one of Claim 1 to 3 characterized by the above-mentioned. The utility pole rebuilding tool according to item.   The strut includes a telescopic portion that can extend and contract in the axial direction of the strut between an electric wire support portion that supports a plurality of the electric wires and a concatenated object support portion that supports the plurality of communication lines as a concatenation. The utility pole rebuilding tool according to any one of claims 1 to 4, wherein the power pole rebuilding tool is provided.   The utility pole rebuilding tool according to any one of claims 1 to 5, wherein the support column can be divided into a plurality of columns.   The utility pole replacement tool according to any one of claims 1 to 6, wherein the strut has an annular portion for attaching a rope.   The utility pole rebuilding tool according to any one of claims 1 to 7, wherein the utility pole fixture is extendable in a horizontal direction.   The utility pole rebuilding tool according to any one of claims 1 to 8, wherein the utility pole fixing tool is rotatable in a horizontal direction in the vicinity of an end portion on the support pole side. Power pole rebuilding method used for power pole rebuilding work to remove a power pole that stretches at least one of electric wires such as high-voltage and low-voltage wires, or communication lines, and to install a new power pole at the position where the power pole was installed Because
The power pole rebuilding tool according to any one of claims 1 to 9, is attached to a power pole that stretches either the electric wire or the communication line,
Holding the electric pole or communication line stretched around the utility pole in the utility pole rebuilding tool,
The electric pole rebuilding tool is suspended by a crane to support the load of the electric wire or communication line,
Remove the utility pole replacement tool from the utility pole,
Removing the utility pole,
Install a new utility pole,
Attach the utility pole replacement tool to the new utility pole,
The electric pole rebuilding method, wherein the electric wire or the communication line is moved from the electric pole rebuilding tool to the new electric pole.

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