JP4493558B2 - Overhead wire holding unit and installation method of overhead wire - Google Patents

Description

  The present invention relates to an overhead wire holding unit for laying an electric wire such as a power transmission line and a distribution line, a communication line such as a telephone line, and other overhead wires in, for example, a forest and the like, and an overhead wire installation method.

  Conventionally, electric wires such as power transmission lines and distribution lines, or communication lines such as telephone lines and other overhead lines are sometimes buried underground in the city center, which emphasizes the scenery. Because it is important, it is generally installed on utility poles and steel towers.

  However, in mountain forests, it is not easy to install overhead wires on steel towers or utility poles because they must carry steel frames and utility poles into the forests and construct them. That is, if the overhead wire is an electric wire, the tree on the route for constructing the tower and the power pole must be cut to a width of 5 to 10 m so that the tree will not touch the electric wire and cause a ground fault or short circuit accident. Don't be. In addition, even after laying the electric wire, if the tree is extended to the extent that it touches the electric wire, a ground fault or short-circuit accident will occur. Don't be.

  On the other hand, if the overhead line is a communication line, even if the tree contacts the communication line, a ground fault or a short-circuit accident does not occur. Therefore, the range in which the tree is cut down can be narrower than the case where an electric wire is installed. However, if a tree touches the communication line many times, the communication line is damaged. Therefore, the tree must be circulated regularly and the extended branches and leaves must be cut as appropriate. Furthermore, since both wires and communication lines are installed near the tops of steel towers and utility poles, extended branches and leaves must be cut using a ladder, which is cumbersome to maintain. This is dangerous work.

  Accordingly, an object of the present invention is to provide an overhead wire holding unit and a method for constructing an overhead wire that can be easily installed and can be easily maintained.

A first overhead wire holding unit according to the present invention includes a plurality of pillars for laying an overhead wire at a height as high as a person's height from the ground, and the pillar includes a pile in a vertical posture in which a lower end side is driven into the ground. and the shaft mounted vertically movably in alignment with the coupling hole of the plurality of coupling holes and a shaft provided at the upper end of該杭, the connector attached by screwing to the shaft is fixed to the connector And a clamp that fixes an overhead wire to the armrest. The shaft is provided with a cylindrical portion at the lower end side and a shaft portion at the upper end, and the upper end of the pile is inserted into the cylindrical portion. In order to connect another shaft as an extension shaft, the shaft portion of the extension shaft is inserted into the cylindrical portion, and the shaft is inserted into the cylindrical portion. Connecting holes for insertion through the cylindrical part and the shaft part It is characterized in that it is formed so as to communicate.

The second overhead wire holding unit according to the present invention, which is different from the above, includes a number of pillars for laying the overhead wire to the height of a person's height from the ground, and the lower end side of the pillar is driven into the ground. and pile vertical posture, and the shaft mounted vertically movably in alignment with the coupling hole of the plurality of coupling holes and a shaft provided at the upper end of該杭, the connector attached by screwing into the shaft, the A brace fixed to the connector, and a clamper for fixing an overhead wire to the brace; the shaft is provided with a cylindrical part at the lower end side and a shaft part at the upper end, and the upper end of the pile is the cylinder In order to connect to another shaft as a shaft for extension, the shaft portion of the extension shaft is inserted into the cylindrical portion, and the shaft portion is inserted into the cylindrical portion. Connection to insert the pin in the state Is formed so as to communicate with the cylindrical portion and the shaft portion, and the support column is formed with a male screw along the axial direction at least at an intermediate portion of the shaft, and a female screw is formed on the connector. The connecting tool is attached to the shaft by screwing.

According to the first and second overhead wire holding units, even if the overhead wire is erected in a forest by laying the overhead wire at a height as high as a person's height, a tower or power pole can be installed. There is no need to cut the tree 5 to 10m as in the case of installation, and after the installation, the overhead line is located around the trunk of the tree, and even if the branches and leaves are shaken by the wind, it may contact the overhead line There is no need to cut branches and leaves.

  In addition, since this overhead wire holding unit is not constructed so that the overhead wire crawls on the ground, the overhead wire is not buried in earth and sand, fallen leaves, etc., and there is no problem that the location of the overhead wire cannot be confirmed. . Furthermore, since this overhead wire holding unit does not allow the overhead wire to be installed near the ground, there is no inconvenience that a passerby trips over the overhead wire.

In addition, this overhead wire holding unit is provided with a large number of columns, and each column is divided into piles, shafts, couplings, braces, and clampers, so that the compactness is achieved and the burden of work for transporting into the forest is reduced. Can be reduced.

  And this overhead wire holding unit is assembled by driving the lower end side of the pile into the ground, attaching the shaft to the upper end of the pile, attaching the coupling tool to the shaft, and fixing the brace to the coupling tool. (Actual assembly is not limited to this order.) Such piles are installed at appropriate intervals. Then, the overhead wire is placed on the arm and the clamper fixes the overhead wire to the arm, thereby constructing the overhead wire.

  And even if this overhead wire holding unit is installed in a mountainous forest, the overhead wire can be installed in a straight line. That is, when the overhead wire is installed apart from the ground, the shaft is attached so as to protrude long from the pile, and conversely, when the overhead wire is installed close to the ground, the shaft protrudes short from the pile. It is attached as follows. In this way, the overhead wire holding units installed next to each other can be arranged such that the connecting tool attached to the shaft and the arm metal fixed to the connecting tool are arranged in a straight line.

Moreover, according to the 1st, 2nd overhead wire holding | maintenance unit, an overhead wire holding | maintenance unit can be made high by connecting the shaft for extension in series with the shaft attached to the pile. That is, the shaft of the shaft attached to the pile is inserted into the cylindrical portion of the shaft for extension, the connecting hole formed in the shaft communicates with the connecting hole formed in the cylindrical shape, and the pin is connected to both connecting holes. By being inserted, the plurality of shafts can be easily connected in series. In addition, the connection hole formed in the cylindrical part of this shaft is good also as the same thing as the connection hole for connecting with the connection hole formed in the said pile.

Further, according to the second overhead wire holding unit, a male screw is formed at least in an intermediate portion of the shaft, a female screw is formed on the coupling tool, and both the screws are screwed together, so that the vertical direction of the coupling tool is increased. The position can be finely adjusted. In order to prevent the connecting tool from descending gradually, a fixing nut may be screwed onto the male screw of the shaft, and the connecting tool may be brought into contact with the upper surface of the fixing nut.

  Moreover, in the overhead wire holding unit according to the present invention, it is preferable that the support column includes a stay in an inclined posture in which a lower end side is driven into the ground and an upper end is attached to the shaft.

  According to the overhead wire holding unit, the stay is attached to the shaft and is detachable, so that the portability can be improved. When installing the overhead wire holding unit on a hard ground, the stay is not used as described above, and only one or a plurality of stays are used when installing on the soft ground. When the lower end side of the stay is driven into the ground and the upper end is attached to the shaft, the overhead wire holding unit is installed in a stable posture so as not to fall down.

  Moreover, in the overhead wire holding unit according to the present invention, it is preferable that the stay has a plurality of parts connected in series.

  According to this overhead wire holding unit, the stay is made by connecting parts divided in the length direction, and depending on the situation of installing the overhead wire holding unit, the necessary number of parts are connected, The length can be adjusted.

Further, the contact wire holding unit according to the present invention, the strut is pre Symbol cylindrical portion fitted around the pile to the lower side is provided with a shaft, at least one coupling hole of are formed in the cylindrical portion The shaft is preferably attached to the pile by inserting a pin through the connection hole of the pile and the connection hole of the shaft.

  According to this overhead wire holding unit, one of the plurality of connecting holes formed in the pile communicates with one connecting hole formed in the shaft, and a pin is inserted into both the connecting holes. Thus, the shaft can be easily attached to the pile. By forming a plurality of connecting holes in the pile, the position of the shaft can be adjusted by the pitch of the connecting holes. In addition, a pin is a thing of a shape like a collar, or a combination of a bolt and a nut (the pin described below is also the same), and is not specified as long as it is a mechanical element that connects a pile and a shaft.

  Further, in the overhead wire holding unit according to the present invention, the support column is formed with a fixing hole in the connector, and a plurality of elongated holes communicating with the fixing hole are formed in the arm metal, and the fixing hole and the elongated hole are formed. Are preferably fastened by a fastener.

  According to this overhead wire holding unit, the fixing hole formed in the coupling tool and the pair of long holes formed in the arm metal are in communication with each other. The tool and the brace are fastened by the fastener. By forming a long hole in the arm metal, it is possible to finely adjust the fixing position of the arm metal also in the horizontal direction. In addition, a clamper penetrates the other long hole and is used to fix the cave. In addition, it is preferable that a pair of fixing holes is formed in a vertical direction in a seat portion provided in a state protruding from the coupling tool.

  An overhead wire erection method according to the present invention is an overhead wire erection method using an overhead wire holding unit provided with the support column, and the lower side of the pile is driven into the ground so that a large number of support columns are arranged in a straight line. The height of the shaft is adjusted so that the line connecting the adjacent arm brackets is a straight line, and the overhead wire is fixed to the arm bracket fixed to the connector attached to the shaft by a clamper. Yes.

According to this construction method of the overhead wire, the overhead wire can be constructed in a straight line by driving the pile straight in a plan view. In addition, by adjusting the height of the shaft so that the line connecting the adjacent braces is linear, the overhead line is constructed linearly even if the ground is rich in undulations.

Further, the overhead wire holding unit related to the present invention is a overhead wire holding unit characterized in that it has a number of support posts for laying the overhead wire from the ground to a height of a person's height. a pair or a plurality of stakes lower end is embedded in the ground, that are provided by a girder that is spanned該杭, and a cross-arm which is fixed in a horizontal direction to the strut.

  According to this overhead wire holding unit, since the support column is provided with a pile, a girder, and a brace, the overhead wire holding unit can be easily installed and the overhead wire can be installed. In other words, the overhead wire holding unit can be installed by embedding the lower side of the pile in the ground, and the overhead wire can be installed only by passing the overhead wire to the armrest and fixing it. Moreover, the pair or piles of piles can be maintained in a stable posture by the girder.

Moreover, in the related overhead wire holding unit, it is preferable that a plurality of the braces are fixed to each support column.

  According to this overhead wire holding unit, even if the ground wire is undulating and adjacent overhead wire holding units are not arranged in a straight line, a plurality of braces are fixed to each column, so that the overhead wire is The overhead wire can be fixed to the arm bracket so as to be installed in a straight line.

Moreover, in the related overhead wire holding unit, the girder part and the brace may be combined.

  According to the overhead wire holding unit, the number of parts can be reduced by using the girder part and the arm metal jointly. For example, the pile is composed of four pieces, spanned in parallel to the two piles so that the girders face each other, and the brace is bridged in a direction different from that of the girders, so that the girders and braces are Can also be used. That is, both can be used as a girder and can be used as a brace.

Further , the overhead wire construction method related to the present invention is a overhead wire construction method using the related overhead wire holding unit, and the lower end side of the pile so that the line connecting the adjacent braces is linear. embedded in the ground and attach the overhead line to the arm-.

  According to this construction method of the overhead wire, the pillar is stably installed by embedding the lower end side of the pile in the ground so that the adjacent braces are at the same height from the ground, and the overhead wire is linear. Can be installed.

Moreover, the different overhead wire holding unit associated with the present invention, there is provided a rack wire holding unit that has a number of blocks for bridging the height of the contact wire from the ground as tall people, the block, is divided into two halves with a joining surface that has grooves fitted into the overhead wire to the bonding surface of the semi-bodies are formed.

  According to this overhead wire holding unit, the block is divided into two halves having a joining surface, and the groove is formed on the joining surface, so that the half is separated so that the joining surface is exposed. The overhead wire is fitted, and the overhead wire is fixed by overlapping so that the halves are joined. By installing such overhead wire holding units on the ground at appropriate intervals, the overhead wire is constructed at a predetermined height from the ground.

According to the present invention, it is assumed to overhead lines holding unit is provided with a number of standoff for bridged high as tall people the overhead line from the ground, by the overhead line is laid to the overhead wire holding unit, Not only is it necessary to cut down a wide range of trees in order to construct an overhead wire, but also the work for carrying the overhead wire holding unit into the forest and installing it becomes extremely simple. Therefore, the construction period for installing the overhead wire holding unit can be shortened and the construction cost can be reduced.

  In addition, since the overhead wire holding unit is as high as a person's height, even if the branches and leaves are extended, the operation of cutting the branches and leaves becomes easy. Therefore, the maintenance labor can be reduced, the cost can be reduced, and the work can be performed safely.

  As shown in FIG. 1, the overhead wire holding unit according to the present invention has a large number of columns for laying an overhead wire Q such as an electric wire or a telephone wire as high as a person's height (for example, about 1 to 2 m) from the ground X, X... Are provided.

First, an embodiment of an overhead wire holding unit provided with a support X will be described with reference to FIGS. As shown in FIGS. 2 and 3, the support column X includes a pile 10, a shaft 20, a connector 30, a brace 40, a clamper 50, and a stay 60.

  As shown in FIG. 3, the pile 10 is used in a vertical posture, and is sharply formed so that the lower end side can be easily driven into the ground. A plurality of (in the drawing, six, but not limited to) connecting holes 11, 11,... Are formed on the upper end side of the pile 10.

  In addition, as shown in FIG. 4, the shaft 20 is provided with a cylindrical portion 21 that externally fits the pile 10 so that the pile 10 can be moved up and down, and at least one connecting hole 22 that penetrates the cylindrical portion 21. Is formed. When the connecting hole 22 of the shaft 20 and the lowermost connecting hole 11 of the pile 10 are aligned and the pin 1 is inserted, the shaft 20 is fixed to the pile 10 at the lowest position. Conversely, when the connecting hole 22 of the shaft 20 and the uppermost connecting hole 11 of the pile 10 are aligned and the pin 1 is inserted, the shaft 20 is fixed to the pile 10 at the highest position. The pile 10 is formed with a plurality of connecting holes 11, 11..., And the height of the shaft 20 is roughly adjusted by aligning the arbitrary connecting hole 11 and the connecting hole 22 of the shaft 20. be able to.

  The pin 1 has a shape like a ridge or a combination of bolts and nuts (the same applies to the pin 1 described later), and is specified if it is a mechanical element that connects the pile 10 and the shaft 20. is not.

  A shaft portion 23 for connecting the extension shaft 20 is provided at the upper end of the shaft 20. The shaft portion 23 has an outer diameter that is substantially the same (same or slightly smaller) as the inner diameter of the cylindrical portion 21 of the shaft 20, and a connection hole 24 is formed. A male screw 25 is formed at least in the middle portion of the shaft 20. A fixing nut 26 is screwed into the male screw 25 as shown in FIG.

  As shown in FIG. 5, the connector 30 includes a cylindrical main body 32 formed with a female screw 31 that is screwed with the male screw 25 of the shaft 20, and a plate-like shape protruding from the side surface of the main body 32. The seat portion 33 is formed with a pair of fixing holes 34 and 34. Such a connector 30 is attached to the shaft 20 in a state where the female screw 31 is screwed into the male screw 25 of the shaft 20 and is in contact with the fixing nut 26 as shown in FIG. The connector 30 does not move downward by contacting the upper surface of the fixing nut 26 and maintains a predetermined position.

As shown in FIG. 5, the seat 33 protrudes in the radial direction of the main body 32, that is, in a direction perpendicular to the side surface, and the fixing hole 34 is formed in the seat 33 parallel to the axis of the main body 32. Has been. Note that the seat portion 33 may be provided in the main body portion 32 so that the direction is changed or changed in an oblique direction.

  The arm metal 40 is fixed to the seat portion 33 of the connector 30. As shown in FIG. 5, a plurality of elongated holes 41, 41... Are formed in the arm metal 40 (the number is six in the drawing, but is not limited thereto). The sizes of the long holes 41, 41,... Are the same, and the pitch of the long holes 41, 41,... Is the same as the interval between the pair of fixing holes 34, 34 of the seat portion 33.

  Then, the seat portion 33 and the arm metal 40 are fixed by a fastener 2 such as a bolt 2a and a nut 2b communicating with the fixing hole 34 and the long holes 41, 41... As shown in FIG. By forming a plurality of long holes 41, 41..., It is possible to select arbitrary long holes 41, 41 and change the position where the brace 40 is attached to the seat portion 33. Further, the mounting position of the arm metal 40 in the horizontal direction can be finely adjusted by the long holes 41, 41.

  As shown in FIG. 3, the clamper 50 is a U-shaped metal piece that sandwiches a conduit P that externally fits the electric wire Q, and has threaded portions at both ends. When the nut 51 is screwed into this threaded portion, the conduit P is fixed to the arm bracket 40. However, the clamper 50 is not limited to the U-shaped hardware, and may be a band or the like. In any case, the pair of long holes 41, 41... Are used for fixing to the seat portion 33, and the remaining two pairs of long holes 41, 41. Used for. Note that the clamper 50 may directly fix the electric wire Q without using the conduit P depending on the covering state of the electric wire Q, and the following description will be made assuming that the conduit P is used.

  The stay 60 is detachably attached to the shaft 20, and as shown in FIG. 3, a connecting hole 61 is formed so that the upper end is attached to the shaft 20 in an inclined posture, and the lower end side is driven into the ground. It is sharply formed to make it easier. A projecting piece 28 having a connection hole 27 communicating with the connection hole 61 is provided on the shaft 20. As shown in FIG. 4, a plurality of the projecting pieces 28 are provided radially (in the drawing, there are four directions, but this is not restrictive). Then, the pin 1 is inserted into both the connecting holes 61 and 27, so that the stay 60 is attached to the shaft 20 so as to be inclined at an arbitrary angle.

  The stay 60 has a plurality of parts (three in the drawing, but not limited to this) divided in the length direction 62a, 62b, 62c are connected and used in a necessary length. Have been able to. For example, a female screw 63 is formed at the lower end of the parts 62b and 62c other than the lowermost part 62a, and a male screw 64 is formed at the upper ends of the parts 62a and 62b other than the uppermost part 62c. When the screws 63 and 64 are screwed together, the parts 62a, 62b and 62c are connected. However, various connecting jigs can be used instead of the female screw 31 and the male screw 25.

The support | pillar X in one Embodiment is comprised as mentioned above, and demonstrates a construction method, referring FIG. 6 next. First, as shown in FIG. 6A, the lower end side of the pile 10 is driven into the ground. Next, as shown in FIG. 6 (b), the lower end portion of the shaft 20 is externally fitted to the upper end portion of the pile 10. In accordance with the installation location, the shaft 20 is lowered to an approximate approximate position, and the connecting hole 22 of the shaft 20 and the connecting hole 11 of the pile 10 are aligned and connected by the pin 1.

  Next, as shown in FIG. 6C, the connecting tool 30 to which the arm metal 40 is fixed is attached to the shaft 20. The connecting tool 30 and the shaft 20 are configured such that the female screw 31 formed in the main body portion 32 of the connecting tool 30 and the male screw 25 formed in the intermediate portion of the shaft 20 are screwed together, so that the vertical direction of the connecting tool 30 is increased. The position of the direction can be finely adjusted. However, the fixing nut 26 (see FIG. 2) is screwed into the shaft 20 in advance so that the connecting tool 30 comes into contact with the upper surface of the fixing nut 26 or comes into contact with the connecting tool 30 whose position has been adjusted. The fixing nut 26 is raised. In any case, the connector 30 does not move below the fixing nut 26 and maintains a predetermined position.

  Further, the arm bracket 40 is fixed to the coupling tool 30 attached to the shaft 20 in advance, or after the coupling tool 30 is attached to the shaft 20, the arm metal 40 is fixed. The arm metal 40 is not only aligned with the central elongated holes 41 and 41 and the fixing holes 34 and 34 of the coupling tool 30 depending on the installation position of the column X, but also coupled to the elongated holes 41 and 41 on one side. The fixing holes 34 and 34 of the tool 30 are aligned and fixed by the fastener 2. In this way, the basic shape A of the column X is completed.

In this basic form A, a stay 60 is attached as shown in FIG. The stay 60 is connected to any number of parts 62a, 62b, 62c according to the place of use, and the length of the stay 60 is adjusted. Then, the lower end side of the stay 60 is driven into the ground, and the upper end side of the stay 60 is tilted toward the shaft 20 so that the upper connection hole 61 communicates with the connection hole 27 formed in the projecting piece 28 of the shaft 20. The pin 1 is inserted into the connecting holes 61 and 27 and the stay 60 is attached to the shaft 20. The shaft 20 may be attached to the pile 10 after the stay 60 is attached to the shaft 20.

  Then, when an arbitrary number of stays 60 are attached to the shaft 20 in accordance with the installation location, as shown in FIG. 6E (in the figure, the case where two stays 60 are attached is shown, The number is not limited.) The application form B of the support post X is completed.

  Further, by attaching the shaft 20 to which the coupling tool 30 is not attached to the pile 10, attaching the shaft 20 for extension to the shaft 20, and attaching the coupling tool 30 to the shaft 20, as shown in FIG. It is also possible to adopt a developed form C of a support column X in which a plurality of shafts 20 and 20 (two but not limited to this in the figure) are connected as shown. The connecting tool 30 may be attached in advance to the shaft 20 for extension.

  In any case, the shaft portion 23 of the lower shaft 20 is externally fitted to the cylindrical portion 21 of the upper shaft 20, and the pins 1 are inserted into both the connecting holes 24, 22. Are concatenated. Also in the developed form C of the support column X, an arbitrary number of stays 60 can be attached. Further, in the developed form C of the support column X, the stay 60 may not be attached depending on the use situation. However, since the developed form C is tall, it is generally preferable to attach the stay 60 to the stay 60.

  Next, an example in which such a column X is actually installed in a forest will be described with reference to FIG.

  This support | pillar X is installed so that the electric wire Q may be fixed to linear form. Therefore, as shown in the second column from the left in FIG. 7, the extended type C in which a plurality of shafts 20 are connected is used as the support column X installed on the ground that is depressed. Moreover, when installing on a hard ground, as shown in the 2nd from the right of FIG. 7, the basic form A which does not attach the stay 60 is used. In addition, an application form B to which a plurality of stays 60 are attached is used according to the ground condition.

  In any case, the conduit P covering the electric wire Q is placed on the arm 40 of each support X, and the electric wire Q is installed on the support X by fixing the conduit P by the clamper 50. Since the electric wire Q is installed near the ground as shown in FIG. 8, it is not necessary to cut down a tree because the column X is installed. Also, even if the branches and leaves grow, it is about the height of a person, so it can be cut easily.

Next, a first reference example of the overhead wire holding unit including the support column X will be described with reference to FIG.

  This support | pillar X is provided with the pile 71, the girder part 72, the arm metal 73, and the clamper (not shown). The pile 71 is provided with a base portion 71a that is enlarged in the lower end portion so that the lower end side is buried in the ground in a vertical posture and is stably erected. However, the lower end portion of the pile 71 may be pointed instead of the base portion 71a according to the geology.

  In such a pile 71, both ends of the girder 72 are fixed to the upper end in one set. The pile 71 and the girder 72 may be integrally formed as illustrated, or separate bodies may be integrated by welding or the like.

  In any case, a brace 73 for fixing the electric wire Q with a clamper is attached to the pile 71 in the horizontal direction. As shown in the drawing, the arm metal 73 is attached to each pile 71 by two or three or more, so that the electric wire Q can be fixed at an intended position. Therefore, only one arm metal 73 may be attached to the pile 71 depending on the use situation. Moreover, each arm metal 73 is attached to the pile 71 in the direction orthogonal to the girder part 72, and the arm metal 73, 73 attached to each pile 71 is opposed in parallel. And the protrusion parts 73a and 73a for preventing the electric wire Q from falling off are provided in the both ends of each arm metal 73. FIG.

In such an overhead wire holding unit in the first reference example , the foundation portion 71a of the pile 71 is embedded in the ground so that the girder portion 72 is along the route where the electric wire Q is installed. The conduit P is fixed to the arm metal 73 by a clamper, and the electric wire Q is inserted into the conduit P.

Next, a second reference example of the overhead wire holding unit including the support column X will be described with reference to FIG.

This support | pillar X is provided with the pile 81, the girder part 82, the arm bracket 83, and the clamper (not shown). Similar to the first reference example , the pile 81 has a vertical posture, the lower end side is buried in the ground, and an enlarged base portion 81a is provided at the lower end portion, or has a pointed shape.

Such piles 81 are, for example, a set of four, and a girder portion 82 that is directed in the direction in which the electric wire Q is installed is bridged. The girder 82 can be fixed to the pile 81 by welding or the like as shown, or can be integrally molded as in one embodiment.

  A brace 83 for fixing the electric wire Q with a clamper (not shown) is bridged over each pile 81 in a direction orthogonal to the girder portion 82. This brace 83 also serves as the girder part 82 to hold the piles 81 that are bridged. Therefore, when the four piles 81 are arranged in a square in plan view, the intervals between the piles 81 are the same, and therefore the girder part 82 and the arm metal 83 can be combined without being distinguished.

  Moreover, the girder part 82 and the brace 83 may be bridged over the pile 81 in two layers as shown in the figure, or may be bridged over the pile 81 over three layers. If the girder part 82 and the arm metal 83 are increased, the weight is increased, but if the arm metal 83 is multi-layered, the electric wire Q can be installed in a straight line even if the ground is rich in undulations. In addition, the pile 81 may prepare many types from which height differs, and may bridge | cross the girder part 82 and the arm bracket 83 one layer at a time.

In such an overhead wire holding unit in the second reference example , the foundation portion 81a of the pile 81 is buried in the ground so that the girder portion 82 is along the route where the electric wire Q is installed. The conduit P is fixed to the arm metal 83 by a clamper, and the electric wire Q is inserted into the conduit P.

Next, a third reference example of the overhead wire holding unit including the block Y will be described with reference to FIG.

  This overhead wire holding unit is divided into two halves 92 having joint surfaces 91, and grooves 93 into which the electric wires Q are fitted are formed in the respective joint surfaces 91. The groove 93 is formed to be large so that a thick outer diameter conduit P can be fitted. When a thin outer diameter conduit P is fitted, an adapter (not shown) is externally fitted to the electric wire Q. The conduit P is prevented from being displaced. However, a plurality of grooves 93 having different sizes may be formed.

  Further, a foot portion 94 joined to the ground is formed on the bottom portion of the half body 92, and a through hole 95 is formed in the foot portion 94. Then, when the driving pin 96 is driven into the ground from the through hole 95, the block Y is fixed to the ground. In addition, a fixing tool (not shown) such as a band is provided to prevent the half bodies 92 from being separated from the overlapped state.

  That is, the blocks Y are arranged at appropriate intervals on the line where the electric wire Q is installed, and the conduit P is fitted into the groove portion 93 in a state where the joining surface 91 of the half body 92 is exposed. Then, the half bodies 92 are overlapped so that the joint surfaces 91 are in close contact with each other, and the half bodies 92 are prevented from being separated by a fixture. Then, when the driving pin 96 is driven into the ground from the through hole 95 formed in the foot portion 94, the installation of the block Y is completed, and the electric wire Q is installed on the block Y and becomes a state.

  In addition, this invention can be variously changed within the range of the invention specific matter described in the claim, without being limited to the said embodiment. For example, the overhead line can be implemented in the same manner even if it is a communication line other than the electric wire Q. Moreover, this overhead wire holding unit can also be implemented in plains other than mountains.

It is explanatory drawing explaining the concept of the overhead wire holding | maintenance unit which concerns on this invention. It is a front view showing one embodiment of an overhead wire holding unit concerning the present invention. It is one embodiment of the overhead wire holding unit according to the present invention and is a front view showing a disassembled state. 1 is a perspective view showing an example of a shaft, which is an embodiment of an overhead wire holding unit according to the present invention. It is one Embodiment of the overhead wire holding unit which concerns on this invention, Comprising: It is a perspective view which shows an example of a coupling tool and a brace. BRIEF DESCRIPTION OF THE DRAWINGS It is one Embodiment of the overhead wire holding unit which concerns on this invention, Comprising: (a) is a front view which shows the state which struck the pile, (b) is a front view of the state which attaches a shaft to a pile, (c) is a shaft. (D) is a front view of a state where a stay is attached to the shaft, (e) is a front view of a state where the stay is attached to the shaft, and (f) is a joint view to the shaft. It is a front view of the state which attached the shaft for addition. It is one Embodiment of the overhead wire holding unit which concerns on this invention, Comprising: It is a front view which shows the state installed in the forest. It is one Embodiment of the overhead wire holding | maintenance unit which concerns on this invention, Comprising: It is explanatory drawing for demonstrating a magnitude | size. It is a perspective view which shows the 1st reference example of the overhead wire holding | maintenance unit which concerns on this invention. It is a perspective view which shows the 2nd reference example of the overhead wire holding | maintenance unit which concerns on this invention. It is a perspective view which shows the 3rd reference example of the overhead wire holding | maintenance unit which concerns on this invention.

DESCRIPTION OF SYMBOLS 1 ... Pin 2 ... Fastener 10 ... Pile 11 ... Connection hole 20 ... Shaft 21 ... Cylindrical part 22 ... Connection hole 23 ... Shaft part 24 ... Connection hole 25 ... Male screw 30 ... Connection tool 31 ... Female screw 34 ... Fixing hole 40 ... arm metal 41 ... long hole 50 ... clamper 60 ... stay 62a, 62b, 62c ... part 71 ... pile 72 ... girder part 73 ... arm metal 81 ... pile 82 ... girder part 83 ... arm metal 91 ... joint surface 92 ... half Body 93 ... groove X ... post Y ... block Q ... overhead wire (electric wire)

Claims (7)

Equipped with a number of struts to build the overhead line from the ground to the height of the person's height,
The strut has a pile of vertical posture lower end is driven into the ground, and the shaft mounted vertically movably in alignment with the coupling hole of the plurality of coupling holes and a shaft provided at the upper end of該杭, the shaft comprising a connector attached by screwing, a cross-arm which is fixed to the connector, and a clamper for fixing the overhead wire to the arm gold in,
The shaft is provided with a cylindrical portion on the lower end side and a shaft portion on the upper end, and the upper end of the pile is inserted into the cylindrical portion, or another shaft is connected as a shaft for extension. The connecting hole for inserting the pin is communicated with the cylindrical portion and the shaft portion in a state where the shaft portion of the connecting shaft is inserted into the cylindrical portion and the shaft portion is inserted into the cylindrical portion. An overhead wire holding unit, characterized in that it is formed. Equipped with a number of struts to build the overhead line from the ground to the height of the person's height,
The strut has a pile of vertical posture lower end is driven into the ground, and the shaft mounted vertically movably in alignment with the coupling hole of the plurality of coupling holes and a shaft provided at the upper end of該杭, the shaft comprising a connector attached by screwing, a cross-arm which is fixed to the connector, and a clamper for fixing the overhead wire to the arm gold in,
The shaft is provided with a cylindrical portion on the lower end side and a shaft portion on the upper end, and the upper end of the pile is inserted into the cylindrical portion, or another shaft is connected as a shaft for extension. The connecting hole for inserting the pin is communicated with the cylindrical portion and the shaft portion in a state where the shaft portion of the connecting shaft is inserted into the cylindrical portion and the shaft portion is inserted into the cylindrical portion. Formed into
The strut has a male screw formed in an axial direction at least in an intermediate portion of the shaft, a female screw is formed in the coupling tool, and the coupling tool is attached to the shaft by screwing both screws. An overhead wire holding unit. 3. The overhead wire holding unit according to claim 1, wherein the support is provided with a stay in an inclined posture in which a lower end side is driven into the ground and an upper end is attached to the shaft. The overhead wire holding unit according to claim 3 , wherein the stay includes a plurality of parts connected in series. The strut before Symbol shaft cylindrical portion fitted around the pile to the lower side is provided with at least one coupling hole of are formed in the cylindrical portion, the pin on the connecting hole of the connecting hole and the shaft of the pile The overhead wire holding unit according to any one of claims 1 to 4 , wherein a shaft is attached to the pile by being inserted. In the support column, a fixing hole is formed in the coupling tool, a plurality of long holes communicating with the fixing hole are formed in the arm metal, and the fixing hole and the long hole are fastened by a fastener. The overhead wire holding unit according to any one of claims 1 to 5 . A method for constructing an overhead wire using the overhead wire holding unit according to any one of claims 1 to 6 ,
The bottom of the pile is driven into the ground so that a large number of support columns are arranged in a straight line, the height of the shaft is adjusted so that the line connecting adjacent braces is straight, and the connection attached to the shaft A method for constructing an overhead wire, wherein the overhead wire is fixed to a brace fixed to the tool by a clamper.

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