JP6499789B1 - Electric pole former hole rebuilding device, electric pole former hole rebuilding vehicle and utility pole former hole rebuilding method - Google Patents

Abstract

[PROBLEMS] To reduce the number of work vehicles required for rebuilding work at a utility pole base hole, and to shorten the work time required for rebuilding at a utility pole base hole, a utility pole base hole rebuilding device, and a utility pole base Provide hole rebuilding vehicle and pole pole hole rebuilding method.
An electric pole base hole rebuilding vehicle 12 has a vehicle main body 31 and a support arm 32, can transport the temporary pole main body 11, and supports the temporary pole main body 11 installed upright in the vertical direction. It is provided as possible. The support arm 32 is attached to the vehicle main body 31 such that the front end portion 44 is provided so as to be able to grip the temporary column main body 11, and the rear end is rotatable left and right and rotatable in the vertical direction. The support arm 32 can be expanded and contracted along its extending direction, and the distal end portion 44 extends along the first shaft 44 a that is perpendicular and horizontal to the temporary column body 11 and the extending direction of the temporary column body 11. The temporary column body 11 is rotatably provided around the second shaft 44b.
[Selection] Figure 1

Description

  The present invention relates to an electric pole base hole rebuilding apparatus, an electric pole base hole rebuilding vehicle, and an electric pole base hole rebuilding method.

  When rebuilding an existing utility pole, if it is not possible to secure land for constructing a new utility pole, a new utility pole is built at the position of the existing utility pole. As a method of setting up a new utility pole at the position of such an existing utility pole, conventionally, after attaching the support arm horizontally to the existing utility pole at the other end, removing the overhead wire from the existing utility pole and moving it to the support arm, the existing utility pole Stand the temporary pole main body on the support base, place a support weight on the support base, then fix one end of the support arm to the temporary pole main body, remove the other end of the support arm from the existing power pole, After removing the utility pole and setting up a new utility pole at the same location, after removing the overhead wire from the support arm and moving it to the new utility pole, the utility pole base hole construction that removes the support arm, support weight, temporary pole body and support base A replacement method has been proposed (see, for example, Patent Document 1).

  In addition, a short shaft columnar tool having a height lower than that of the existing utility pole is installed near the existing utility pole, a weak wire is transferred from the existing utility pole to the short shaft columnar tool, and a columnar tool is installed at the upper end of the short shaft columnar tool. Attach the upper columnar member, transfer the high voltage line from the existing utility pole to the upper columnar member, then remove the existing utility pole and install a new utility pole, and install the new utility pole on the new utility pole from the upper columnar member to the short shaft tool There has also been proposed an electric pole rebuilding method in which a weak electric wire is transferred and the upper columnar member and the short-axis columnar tool are respectively removed (see, for example, Patent Document 2).

Japanese Patent No. 5527864 Japanese Patent No. 5591001

  According to the method of rebuilding the utility pole main hole described in Patent Document 1, it is possible to build a new utility pole at the same position as the utility pole to be removed, even in a relatively small place where large heavy machinery cannot be placed, which is required for rebuilding at the utility pole former hole Work time can be shortened. However, in the utility pole main hole rebuilding method described in Patent Document 1, it is necessary to place a supporting weight on the support base of the temporary pole body in order to support the temporary pole body placed side by side on the existing or new power pole. There is a need for a work vehicle for transporting the support weight, loading it on the support base, and removing it from the support base. In this regard, when rebuilding utility poles in a relatively small space, there is a demand to reduce the number of vehicles entering and exiting the site as much as possible in order to prevent traffic from getting in the way and increasing noise. It was.

  In addition, in the electric pole rebuilding method described in Patent Document 2, when installing a short-axis columnar tool in the vicinity of an existing electric pole, the base end of the short-axis columnar tool is buried in the ground, and therefore the work of digging the hole is performed. There is a problem that it is necessary and the work time becomes long.

  The present invention has been made paying attention to such problems, and can reduce the number of work vehicles required for rebuilding work at the utility pole base hole and shorten the work time required for rebuilding at the utility pole base hole. An object of the present invention is to provide a power pole base hole rebuilding apparatus, a power pole base hole rebuilding vehicle, and a power pole base hole rebuilding method that can be performed.

In order to achieve the above object, the utility pole main hole rebuilding apparatus according to the present invention is a utility pole main hole rebuilding apparatus used when removing an existing utility pole and constructing a new utility pole at the same position. A working vehicle, a temporary pole body that is arranged in the vertical direction and can be expanded and contracted in line with the existing electric pole or the new electric pole, and a tip portion is provided so as to be able to grip the temporary pole body, and a rear end Has a support arm attached to the work vehicle so as to be rotatable left and right about a vertical axis and rotatable up and down around a horizontal axis, and the work vehicle. Consists of a truck with a crane, and the crane has a boom whose rear end is rotatable left and right about a vertical axis and rotatable up and down around a horizontal axis; Provided at the tip Had a hook, the support arm is extendable along its extension direction, the tip, a first axis perpendicular to the horizontal and gripped the temporary posts body, and gripping The gripped temporary column main body is rotatably provided around a second axis along the extension direction of the temporary column main body, the temporary column main body rises in the vertical direction by gripping the temporary column main body. The temporary column main body is configured to be able to be installed on the ground near the working vehicle in a state, and the hook is hooked on the upper end of the temporary column main body installed in a vertically standing state, and the temporary column main body The upper support portion is attached to the tip of the boom so as to support the upper portion of the temporary column main body when the temporary column main body is installed with the vertical column standing upright. It is characterized by.

  The utility pole main hole rebuilding method according to the present invention uses the utility pole main hole rebuilding apparatus according to the present invention to remove the existing utility pole and build a new utility pole at the same position. The temporary pole body is carried to the vicinity of the existing utility pole, the temporary pole body is erected on the existing utility pole, and the temporary pole body is supported by the support arm and the work vehicle. A pole installation step, an overhead wire transfer step of removing the overhead wire from the existing utility pole and transferring it to the temporary pole body, a utility pole removal step of removing the existing utility pole, and the new utility pole at the same location as the existing utility pole It has an electric pole new installation process to stand, an overhead wire attaching / moving process of removing the overhead wire from the temporary pole main body and transferring it to the new electric pole, and a temporary pole removing process of removing the temporary pole main body.

  The utility pole main hole rebuilding apparatus and the utility pole original hole rebuilding method according to the present invention are such that the work vehicle is parked in the vicinity of the position where the temporary pole main body is installed, and the temporary pole main body is easily installed by the support arm. Can be supported. At this time, the support arm is attached to the work vehicle so as to be able to rotate left and right about the vertical axis and up and down about the horizontal axis, and to extend and contract along the extension direction. Since it is possible, the temporary column main body grasped at the tip of the support arm can be easily moved to a desired position in the vicinity of the work vehicle. In addition, since the tip end portion that grips the temporary column body can rotate the temporary column body about a first axis that is perpendicular and horizontal to the temporary column body, the temporary column body is rotated in the vertical plane. The temporary column main body can be raised in the vertical direction. Furthermore, since the tip end portion holding the temporary column main body can rotate the temporary column main body about the second axis along the extension direction of the temporary column main body, the installation position of the temporary column main body can be easily finely adjusted. be able to. Thus, with the support arm and the work vehicle, the temporary column body can be installed and supported at a desired installation position in a state where the temporary column body is raised in the vertical direction.

  The utility pole main hole rebuilding apparatus and the utility pole original hole rebuilding method according to the present invention can be supported in a state where the temporary pole main body is set up by the support arm and the work vehicle. No weight is required. This eliminates the need for a vehicle for transporting, installing, or removing the weight, thereby reducing the number of vehicles entering and exiting the site. Further, since the temporary column main body is supported and raised using the support arm and the work vehicle, it is not necessary to make a hole for the foundation of the temporary column main body on the ground, and the temporary column main body can be easily and quickly set up. . For this reason, there is no need for a new pillar hole with risk of damage to buried objects and land negotiations. In addition, the work time required for rebuilding at the main pole hole can be shortened, and construction and removal on the day are possible.

  The utility pole main hole rebuilding apparatus and the utility pole original hole rebuilding method according to the present invention rotate the tip end portion gripping the temporary pole main body around the second axis to bring the temporary pole main body closer to the work vehicle. Can be installed. Thereby, stability at the time of supporting a temporary pole main body with a support arm and a working vehicle can be improved, and a utility pole rebuilding work can be performed more safely.

  In the utility pole base hole rebuilding apparatus and the utility pole base hole rebuilding method according to the present invention, it is preferable that the tip end portion of the support arm grips the temporary pole body on the upper side of the center of gravity position of the temporary pole body. In this case, by moving the support arm and floating the temporary column body gripped by the tip, the temporary column main body rotates about the first axis, and the temporary column main body extends in the vertical direction. it can. Thereby, a temporary pillar main body can be stably moved in the state extended in the perpendicular direction. Thereby, the temporary column main body can be installed and removed easily and safely even in a narrow space. Further, the temporary column main body can be easily installed in a state where it is raised in the vertical direction, and the working time can be further reduced.

  In the utility pole main hole rebuilding apparatus and utility pole original hole rebuilding method according to the present invention, the support arm can be positioned at the loading position where the temporary pole main body is loaded on the work vehicle and the installation position. It is preferable that the temporary column main body can be transported. In this case, the temporary pole body can be carried in and out of the work vehicle, and the temporary pole body can be installed and removed with the support arm, so that the utility pole can be rebuilt without using a heavy machinery such as a crane. be able to. For this reason, a new utility pole can be built at the same position as the utility pole to be removed even in a relatively small place where large heavy machinery cannot be placed.

  In the electric pole base hole rebuilding apparatus according to the present invention, it is preferable that the support arm is configured to perform expansion and contraction and rotation about the second axis by hydraulic pressure. In this case, the power of the engine of the work vehicle can be used, and the labor of the worker can be reduced.

Device for utility poles Motoana reconstruction according to the present invention, by supporting the upper part of the temporary column body placed in a state extending lead straight direction above the support unit, Karihashira body to the left and right during the utility pole advances working It is possible to prevent the swinging and to prevent the temporary column main body from falling. The work vehicle may be a commercial truck with a crane.

  In the electric pole main hole rebuilding apparatus according to the present invention, the temporary pole main body has a plurality of cylindrical members having different diameters, and a cylindrical member having a small diameter is sequentially inserted inside a cylindrical member having a large diameter to be nested. The cylindrical members may be provided so as to be extendable / contractable by sliding each cylindrical member. In this case, by shrinking the temporary column main body, it can be easily transported without being bulky. In addition, since the temporary column main body can be assembled by sliding and extending each cylindrical member, it is possible to perform the work of standing the temporary column main body in a relatively narrow space. Further, when removing the temporary column main body, the work can be performed in a narrow space. When not in use, it can be stored in a small space.

  Further, in this case, the temporary column main body has a guide groove provided on the inner surface upper portion of the cylindrical member having a larger diameter among the cylindrical members slidable with each other and extending along the length direction, and a smaller diameter member. When the cylindrical member is extended by sliding relative to the cylindrical member having the larger diameter at the lower surface of the cylindrical member, the convex portion is provided so as to be inserted into the guide groove, and the convex portion is provided in the guide groove. In the inserted state, a through hole provided so as to penetrate the cylindrical member having the larger diameter and the cylindrical member having the smaller diameter in the diametrical direction, and the one having the larger diameter inserted into the through hole. And a connecting pin provided so as to be fixable in a state where the cylindrical member having the smaller diameter and the cylindrical member having the smaller diameter are extended. In this case, it is possible to easily fix the temporary column main body in an extended state by sliding and extending each cylindrical member, inserting a convex portion in the guide groove, and inserting and fixing a connection pin in the through hole. it can.

  In the electric pole base hole rebuilding apparatus according to the present invention, the temporary pole main body may have a grounding portion having a flat grounding surface attached to a lower end via a universal joint. In this case, even on an inclined ground, the temporary pillar main body can be installed on the ground with the ground contact surface in a state where the temporary pillar main body is vertically extended. For this reason, a temporary pillar main body can be installed in the stable state.

  The electric pole main hole rebuilding vehicle according to the present invention is the electric pole main hole rebuilding apparatus according to the present invention, including the working vehicle to which the support arm and the upper support portion are attached, and the existing electric pole. Is constructed so that it can support the existing pole or the temporary pole main body installed upright in the vertical direction along with the new pole.

  Since the electric pole base hole rebuilding vehicle according to the present invention can be supported in a state where the temporary pole body is raised, a weight for supporting the temporary pole body can be eliminated. This eliminates the need for a vehicle for transporting, installing, or removing the weight, thereby reducing the number of vehicles entering and exiting the site. Further, since the temporary column main body is supported and erected, there is no need to make a hole for the foundation of the temporary column main body on the ground, and the temporary column main body can be erected easily and quickly. For this reason, the work time required for rebuilding at the main pole hole can be shortened, and construction on the day and removal on the day are possible.

  It is preferable that the electric pole main hole rebuilding vehicle according to the present invention can transport the temporary pole main body. In this case, since the temporary pole main body can be transported, installed, and supported, a large heavy machine such as a crane can be dispensed with when the existing utility pole is removed and a new utility pole is built at the same position. For this reason, a new utility pole can be built at the same position as the utility pole to be removed even in a relatively small place where large heavy machinery cannot be placed.

  ADVANTAGE OF THE INVENTION According to this invention, the number of working vehicles required for the rebuilding work in a utility pole main hole can be reduced, and the work pole rebuilding apparatus which can shorten the working time required for rebuilding in a utility pole main hole The electric pole base hole rebuilding vehicle and the electric pole base hole rebuilding method can be provided.

It is the (a) side view and (b) perspective view which show the utility pole former hole rebuilding apparatus of embodiment of this invention. It is the front view of the temporary pole main body of the utility pole main hole rebuilding apparatus shown in FIG. 1 in (a) the expanded state, (b) The front view of the contracted state. 3A is a plan view of a guide plate of the temporary column main body shown in FIG. 2, FIG. 3B is a front view of a connecting portion of each cylindrical member, and FIG. It is the (a) rear view and (b) perspective view which show the state which installed the temporary pole main body in the installation position with the support arm of the apparatus for electric pole former hole reconstruction shown in FIG. It is the perspective view from the upper side which shows the support arm of the utility pole reconstruction apparatus shown in FIG. 1 from the upper part, (b) It is a perspective view from the lower part. It is a side view which shows the state which hold | maintained the temporary pole main body with the front-end | tip part of the support arm of the utility pole former hole rebuilding apparatus shown in FIG. It is a perspective view which shows the state which rotated the temporary pole main body hold | gripped by the front-end | tip part of the support arm of the utility pole former hole reconstruction apparatus shown in FIG. 1 to (a) right direction and (b) left direction. 1. (a) Perspective view of the upper support portion of the utility pole rebuilding device shown in FIG. 1, (b) Perspective view of the opened state, (c) Perspective view of the state of rotating upward and retracted. FIG. (A) The side view of the state which parked the electric pole main hole rebuilding vehicle, (b) The side view of the state which raised the boom and temporary pole main body which shows the electric pole main hole rebuilding construction method of embodiment of this invention is there. (A) Side view of a state where the temporary pole main body is floated, (b) Rear view showing a state where the boom and the temporary pole main body are swung, (b) It is the rear view of the state which rotated the temporary column main body to the up-down direction, (d) The back view of the state which expanded / contracted the support arm. BRIEF DESCRIPTION OF THE DRAWINGS (a) The rear view of the state which rotated the temporary pole main body right and left which shows the electric pole former hole rebuilding method of embodiment of this invention, (b) The rear view of the state which installed the temporary pole main body in the installation position . (A) The rear view of the state which extended the temporary pole main body vertically upwards which shows the electric pole former hole reconstruction method of embodiment of this invention, (b) of the state which supported the temporary pole main body with the support arm and the upper support part It is a rear view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 12 show a power pole base hole rebuilding apparatus, a power pole base hole rebuilding vehicle, and a power pole base hole rebuilding method according to an embodiment of the present invention.
As shown in FIG. 1, the utility pole main hole rebuilding device 10 is a utility pole former hole rebuilding device 10 used when removing an existing utility pole and building a new utility pole at the same position. It has a pole body 11 and a utility pole base hole rebuilding vehicle 12.

  As shown in FIG. 2, the temporary column main body 11 has a plurality of cylindrical members 21a, 21b, and 21c having different diameters, and cylindrical members 21b and 21c having small diameters inside the cylindrical members 21a and 21b having large diameters, respectively. Are inserted in sequence, and are arranged in a nested manner, and are provided so that each cylindrical member 21a, 21b, 21c can slide and slide. In the specific example shown in FIG. 2, the temporary column body 11 has three cylindrical members 21a, 21b, and 21c having different diameters, and the cylindrical member having the second largest diameter inside the cylindrical member 21a having the largest diameter. 21b is inserted, and the cylindrical member 21c having the smallest diameter is placed inside the cylindrical member 21b having the second largest diameter so that they can be expanded and contracted. The temporary column main body 11 can be set up in the vertical direction by setting one end of the cylindrical member 21a having the largest diameter downward and extending the other cylindrical members 21b and 21c toward the other end side.

  As shown in FIG. 3, the temporary column body 11 includes cylindrical members 21 a and 21 b (in FIG. 3, about the cylindrical member 21 a) in which other cylindrical members 21 b and 21 c (shown as the cylindrical member 21 b in FIG. 3) are placed. A pair of arcuate guide plates 22 are attached to the upper portion of the inner surface (shown) so as to face each other along the inner surface. Below, in the case of description of FIG. 3, it describes about the connection part of the cylindrical members 21a and 21b. The connecting portion between the cylindrical members 21b and 21c has the same configuration.

  As shown in FIG. 3, each guide plate 22 is provided such that the upper edge extends along the upper edge of the cylindrical member 21a and the pair of side edges extend along the length direction of the cylindrical member 21a. Each guide plate 22 is attached to each side edge with a predetermined interval between adjacent side edges of the opposing guide plate 22. Each guide plate 22 is provided so that the lower edge protrudes in a mountain shape toward the lower side of the cylindrical member 21a, and the tip of the protruding portion is formed in a smooth curved shape. The temporary column main body 11 forms a guide groove 23 provided so that the interval between the side edges of each guide plate 22 extends along the length direction of the cylindrical member 21a.

  Further, the temporary column main body 11 has a pair of convex portions 24 provided so as to be inserted into the respective guide grooves 23 at the lower outer surface of the cylindrical member 21b placed inside the cylindrical member 21a. Thereby, the temporary column main body 11 is configured such that each convex portion 24 is inserted into each guide groove 23 when the cylindrical members 21a, 21b, and 21c are relatively slid and extended.

  Further, as shown in FIG. 3, in the temporary column main body 11, the cylindrical member 21a having the larger diameter and the cylindrical member 21b having the smaller diameter overlap with each other in the state where each convex portion 24 is inserted into each guide groove 23. In this position, a pair of through holes 25 are provided in each cylindrical member 21a, 21b so as to penetrate each cylindrical member 21a, 21b in the diameter direction. As shown in FIG. 2, when the through holes 25 of the cylindrical members 21 a and 21 b, 21 b and 21 c overlap, the temporary column main body 11 is inserted into the through holes 25 to extend the cylindrical members 21 a, 21 b and 21 c. It has a pair of connecting pins 26 provided so as to be fixed in the state.

  Further, as shown in FIG. 3, the temporary column main body 11 is provided on the outer cylindrical member 21a so as to pass under the lower end of the inner cylindrical member 21b when each cylindrical member 21a, 21b, 21c is extended. The support hole 27 is provided. As shown in FIG. 2, the temporary column body 11 has a pair of support pins 28 that are inserted into the support holes 27 to support the inner cylindrical members 21 b and 21 c from falling. Further, the temporary column main body 11 has a grounding portion 30 attached to the lower end of the cylindrical member 21 a having the largest diameter via a universal joint 29. The grounding unit 30 has a flat grounding surface facing downward.

  As shown in FIG. 1, the utility pole main hole rebuilding vehicle 12 includes a vehicle main body 31, a support arm 32, and an upper support portion 33. The vehicle main body 31 includes a commercially available truck with a crane, and the crane is provided with a boom 35 provided such that the rear end thereof can rotate left and right around a vertical axis and can rotate up and down around a horizontal axis. have.

  As shown in FIG. 4, the support arm 32 has a rear end that is rotatable to the left and right around the vertical axis and is vertically moved around the horizontal axis near the attachment position of the end of the boom 35 of the vehicle body 31. It is mounted so that it can rotate in any direction. In a specific example, the support arm 32 has a rear end attached to a turntable of the boom 35 and is rotatable to the left and right together with the boom 35.

  As shown in FIGS. 4 and 5, the support arm 32 is inserted into the rectangular cylindrical arm main body 41 and the arm main body 41 so as to be slidable along the extending direction of the arm main body 41. The telescopic arm 42, the arm main body 41, and the telescopic arm 42 are connected, and a hydraulic cylinder 43 is provided that is slidable with respect to the arm main body 41 by hydraulic pressure. The support arm 32 is a hydraulic cylinder 43 and can be extended and contracted along its extending direction by sliding the extendable arm 42 with respect to the arm main body 41. The support arm 32 can be adjusted in length by holding the telescopic arm 42 at a desired position with respect to the arm body 41 by a hydraulic cylinder 43.

  As shown in FIGS. 4 to 6, the support arm 32 has a tip 44 at the tip of the telescopic arm 42. The distal end portion 44 is provided to grip the temporary column body 11 so as to be slidable in the extending direction. Moreover, the front-end | tip part 44 comprises the somewhat wide annular | circular shape, and is holding the cylindrical member 21a with the largest diameter of the temporary column main body 11. As shown in FIG. The tip 44 is formed by connecting the ends of a pair of semicircular members with shaft members. One shaft member can be attached to and detached from the distal end portion 44, and can be opened and closed by relatively rotating each semi-annular member around the other shaft member. Thus, the distal end portion 44 can be gripped by placing the temporary column main body 11 inside. Further, the distal end portion 44 is configured to grip the temporary column body 11 on the upper side of the center of gravity position of the temporary column body 11.

  The distal end portion 44 is attached to the distal end of the telescopic arm 42 so that the gripped temporary column main body 11 is rotatable about a first axis 44a that is perpendicular and horizontal to the gripped temporary column main body 11. As shown in FIGS. 4 to 7, the distal end portion 44 is configured to be able to rotate the gripped temporary column body 11 around the second shaft 44 b along the extending direction of the gripped temporary column body 11. ing. In the example shown in FIG. 7, the temporary column body 11 extending vertically can be rotated left and right within a horizontal plane. The distal end portion 44 has a hydraulic rotation driving device 44c so that rotation about the second shaft 44b is performed by hydraulic pressure. The distal end portion 44 can be rotated at a desired angle around the second shaft 44b with respect to the distal end of the telescopic arm 42 by a hydraulic rotation driving device 44c.

  As shown in FIG. 8, the upper support portion 33 has an annular shape and is attached to the tip of the boom 35 of the vehicle main body 31. The upper support portion 33 is configured to grip the tip end portion of the cylindrical member 21 c having the smallest diameter of the temporary column main body 11. The upper support portion 33 is attached so that a plane including an annular ring rotates in the vertical direction around the horizontal axis. As shown in FIG.8 (c), the upper support part 33 rotates upwards and is stored. As shown in FIGS. 8A and 8B, the upper support portion 33 is formed by connecting end portions of semicircular members with shaft members, respectively. One shaft member can be attached to and detached from the upper support portion 33, and can be opened and closed by relatively rotating each semi-annular member around the other shaft member. Thus, the upper support portion 33 can be fixed by placing the temporary column main body 11 inside.

  The utility pole main hole rebuilding vehicle 12 holds the temporary pole main body 11 with the tip 44 of the support arm 32, and the loading position of the temporary pole main body 11 shown in FIG. It is comprised so that positioning to the installation position which installed the temporary pillar main body 11 shown in the nearby ground shown in FIG. Moreover, when the electric pole main hole rebuilding vehicle 12 is positioned and extended with the temporary pole main body 11 positioned at the installation position, the boom 35 of the vehicle main body 31 is extended and the upper support portion 33 of the cylindrical member 21c having the smallest diameter is extended. It is configured to be fixed to the tip. Thus, the utility pole main hole rebuilding work vehicle 12 can be supported at the installation position by the support arm 32 and the upper support portion 33 with the temporary pole body 11 extended. Moreover, the electric pole former hole rebuilding | working vehicle 12 can carry the temporary pole main body 11 by positioning the temporary pole main body 11 in a loading position.

  The utility pole base hole rebuilding method according to the embodiment of the present invention is suitably implemented using the utility pole base hole rebuilding apparatus 10. In the utility pole main hole rebuilding method according to the embodiment of the present invention, first, a temporary arm is attached to an existing utility pole, and a low voltage line or a communication line of the existing utility pole is transferred to the temporary arm. Next, the utility pole main hole rebuilding vehicle 12 loaded with the temporary pole body 11 at the loading position is moved and parked in the vicinity of the existing utility pole, and the outrigger 31a is taken out to support the vehicle body 31 (FIG. 9). (See (a)). After supporting the vehicle main body 31, the support arm 32 holding the temporary column main body 11 and the boom 35 are raised (see FIG. 9B).

  Next, the lower end part of the temporary column main body 11 is removed from the vehicle main body 31, and the temporary column main body 11 is floated. At this time, since the tip end portion 44 holds the temporary column body 11 above the position of the center of gravity of the temporary column body 11, the temporary column body 11 rotates around the first shaft 44 a, and the temporary column body 11. Can be extended in the vertical direction (see FIG. 10A). In this state, together with the boom 35, the support arm 32 is turned left and right about the vertical axis (see FIG. 10B) and rotated up and down about the horizontal axis (FIG. 10C). )), And further, the support arm 32 is expanded and contracted along the extending direction by the hydraulic cylinder 43 (see FIG. 10D), and the temporary pole body 11 is moved to a desired position along the existing power pole. Let Thus, since the temporary column main body 11 is moved in the state extended in the perpendicular direction, the temporary column main body 11 can be moved easily and safely even in a narrow space.

  Next, the tip end portion 44 of the support arm 32 is rotated left and right around the second shaft 44b by the hydraulic rotation driving device 44c so that the temporary column main body 11 is as close as possible to the vehicle main body 31 and the temporary column main body 11 Is finely adjusted (see FIG. 11A), and the temporary column body 11 is installed on the ground (see FIG. 11B). At this time, the universal joint 29 can be installed on the ground by the ground contact portion 30 with the temporary column main body 11 standing vertically even on an inclined ground. Further, by installing the temporary column main body 11 as close as possible to the vehicle main body 31, stability when the temporary column main body 11 is supported by the support arm 32 and the vehicle main body 31 can be enhanced. Thus, the temporary column body 11 can be installed at the installation position. Further, since the boom 35 is raised and kept in a standing state while the temporary column main body 11 is moved, the tip of the boom 35 can be prevented from coming into contact with an electric wire, a building, etc. Can proceed.

  After the temporary column body 11 is installed, the boom 35 of the vehicle body 31 is raised and extended, and a crane hook 36 of the vehicle body 31 is hooked on the upper end of the temporary column body 11 by using an aerial work vehicle or the like. The main body 11 is extended vertically upward. At this time, the projections 24 are inserted into the guide grooves 23 by sliding the cylindrical members 21a, 21b, and 21c relative to each other. In addition, when the through holes 25 of the cylindrical members 21a, 21b, and 21c that slide with each other overlap, the connection pins 26 are inserted into the through holes 25 and the support pins 28 are inserted into the support holes 27 and fixed. The temporary column main body 11 can be easily fixed in the extended state (see FIG. 12A).

  With the temporary column main body 11 extended, the upper support portion 33 is fixed to the distal end portion of the cylindrical member 21c having the smallest diameter at the upper end of the temporary column main body 11 using an aerial work vehicle or the like. Thus, the temporary arm body 11 can be supported by the support arm 32 and the upper support portion 33 in a state of extending in the vertical direction, and the temporary body 11 can be prevented from swinging left and right, and the temporary body 11 can be turned over. This can be prevented (see FIG. 12B). In this way, the utility pole main body 11 can be installed and supported at a desired installation position in a state where the temporary pole main body 11 is raised in the vertical direction by the utility pole main hole rebuilding work vehicle 12.

  With the temporary pole main body 11 supported by the utility pole main hole rebuilding vehicle 12, the high voltage line is moved from the existing electric pole to the temporary pole main body 11, and the temporary arm for the low voltage line and the telegraph line is moved to the temporary pole main body 11. Fix it. Thereafter, the temporary arm is removed from the existing utility pole, and the existing utility pole is removed. A new utility pole is set up in the former hole by drilling by inserting a Saya tube into the former hole of the existing utility pole. The temporary arm for the low-voltage line or the telegraph line is fixed to a new utility pole, the high-voltage line is transferred from the temporary pole body 11 to the new utility pole, and then the temporary arm is removed from the temporary pole body 11.

  Removal of the temporary column main body 11 is performed in a process opposite to the installation procedure. That is, the upper support portion 33 is removed from the tip end portion of the cylindrical member 21c having the smallest diameter, and each of the cylindrical members 21a, 21b, and 21c is suspended with the temporary column main body 11 suspended upward by the crane hook 36 of the vehicle main body 31. The connection pins 26 are removed from the through holes 25, the support pins 28 are removed from the support holes 27, the hooks 36 of the crane are lowered, and the cylindrical members 21a, 21b, and 21c are slid and contracted. With the temporary column main body 11 in the most contracted state, the temporary arm main body 11 is moved from the installation position to the loading position by the support arm 32 and the boom 35 is also moved to the state shown in FIG. In this state, the utility pole main hole rebuilding work vehicle 12 can be moved and withdrawn from the site.

  Since the utility pole main hole rebuilding apparatus 10 and the utility pole former hole rebuilding method according to the embodiment of the present invention can carry, install and support the temporary pole main body 11 by the utility pole former hole rebuilding vehicle 12. The utility pole can be rebuilt without using heavy machinery such as cranes. For this reason, a new utility pole can be built at the same position as the utility pole to be removed even in a relatively small place where large heavy machinery cannot be placed. Moreover, since the temporary pole main body 11 can be supported by the electric pole main hole rebuilding work vehicle 12 in a standing state, a weight for supporting the temporary pole main body 11 is unnecessary. This eliminates the need for a vehicle for transporting, installing, or removing the weight, thereby reducing the number of vehicles entering and exiting the site.

  Since the utility pole main hole rebuilding apparatus 10 and the utility pole original hole rebuilding method according to the embodiment of the present invention support and stand the temporary pole main body 11 using the utility pole former hole rebuilding vehicle 12, There is no need to make a hole for the foundation of the temporary column main body 11, and the temporary column main body 11 can be easily and quickly set up. For this reason, there is no need for a new pillar hole with the risk of damage to buried objects and land negotiations. In addition, the work time required for rebuilding at the main pole hole can be shortened, and construction and removal on the day are possible.

  Moreover, the utility pole main hole rebuilding apparatus 10 and the utility pole original hole rebuilding method according to the embodiment of the present invention use the power of the engine of the vehicle main body 31, respectively, by the hydraulic cylinder 43 and the hydraulic rotary drive device 44c. The expansion and contraction of the support arm 32 and the rotation around the second shaft 44b of the distal end portion 44 can be performed, and the labor of the operator can be reduced.

  In the utility pole base hole rebuilding apparatus 10 and the utility pole base hole rebuilding method according to the embodiment of the present invention, the temporary pole main body 11 can be easily transported without being bulky by shrinking. Moreover, since the temporary column main body 11 can be assembled by sliding and extending each cylindrical member 21a, 21b, 21c mutually, the operation | work which stands the temporary column main body 11 in a comparatively narrow space can be performed. Moreover, when removing the temporary column main body 11, the work can be performed in a narrow space. When not in use, it can be stored in a small space.

DESCRIPTION OF SYMBOLS 10 Electric pole main hole rebuilding apparatus 11 Temporary pole main body 21a, 21b, 21c Cylindrical member 22 Guide plate 23 Guide groove 24 Convex part 25 Through hole 26 Connection pin 27 Support hole 28 Support pin 29 Universal joint 30 Grounding part 12 Electric pole main hole Vehicle for rebuilding work 31 Vehicle body 31a Outrigger 32 Support arm 41 Arm body 42 Telescopic arm 43 Hydraulic cylinder 44 Tip 44a First shaft 44b Second shaft 44c Hydraulic rotation drive device 33 Upper support portion 35 Boom 36 Hook

Claims (6)

It is a utility pole former hole rebuilding device used when removing an existing utility pole and building a new utility pole at the same position,
A working vehicle;
Arranged on the existing utility pole or the new utility pole, a temporary pole body that is vertically extendable and extendable ,
A front end portion is provided so as to be able to grip the temporary column main body, and a rear end is attached to the work vehicle so as to be able to rotate left and right around a vertical axis and up and down around a horizontal axis. A support arm ;
An upper support,
The working vehicle is composed of a truck with a crane, and the crane has a boom provided so that a rear end thereof can rotate left and right about a vertical axis and can rotate up and down around a horizontal axis. And a hook provided at the tip of the boom,
The support arm is extendable along its extending direction, and the distal end portion is a first axis that is horizontal and perpendicular to the gripped temporary column body, and the extended direction of the gripped temporary column body The temporary column main body gripped by the second column along the axis is rotatably provided , the temporary column main body is held in a state where the temporary column main body rises in a vertical direction. It is configured to be installed on the ground near the working vehicle,
The hook is hooked on the upper end of the temporary column main body installed in a vertically standing state, and the temporary column main body is provided to be extendable and contractible,
The upper support portion is attached to a tip portion of the boom so as to support an upper portion of the temporary pole body when the temporary pole body is installed in a state where the temporary pole body stands in a vertical direction. Hole rebuilding device. The temporary column main body has a plurality of cylindrical members having different diameters, and a cylindrical member having a small diameter is sequentially inserted inside a cylindrical member having a large diameter to be nested, and the cylindrical members are slid to each other to expand and contract. The electric pole base hole rebuilding apparatus according to claim 1 , wherein the apparatus is provided in a possible manner. The temporary column body is
A guide groove provided on the inner surface upper part of the cylindrical member having a larger diameter among the cylindrical members slidable with respect to each other so as to extend along the length direction;
A convex portion provided so as to be inserted into the guide groove when extending by sliding relative to the cylindrical member having the larger diameter on the lower outer surface of the cylindrical member having the smaller diameter,
A through hole provided so as to penetrate the cylindrical member having the larger diameter and the cylindrical member having the smaller diameter in a diametrical direction with the convex portion inserted into the guide groove;
Inserting into the through-hole, a connecting pin provided so as to be fixed in a state where the cylindrical member having the larger diameter and the cylindrical member having the smaller diameter are extended,
The utility pole main hole rebuilding device according to claim 2 , comprising: The utility pole main hole rebuilding according to any one of claims 1 to 3 , wherein the temporary pole body has a grounding portion having a flat grounding surface attached to a lower end via a universal joint. Equipment. 2. The work vehicle to which the upper support portion and the support arm are attached according to claim 1 , wherein the existing power pole is lined up with the existing power pole or the new power pole while the existing power pole is being rebuilt to the vertical direction. A pole pole hole reconstructing work vehicle characterized by being provided so as to be able to support the temporary pole main body installed in a vertical direction. The utility pole main hole rebuilding method for removing the existing utility pole and building a new utility pole at the same position by using the utility pole rebuilding equipment according to any one of claims 1 to 4. And
The temporary pole main body is carried into the vicinity of the existing electric pole, the temporary pole main body is set up side by side with the existing electric pole, and the temporary pole main body is supported by the support arm and the work vehicle, and
An overhead wire moving step of removing the overhead wire from the existing utility pole and moving it to the temporary pole body,
A utility pole removal step of removing the existing utility pole;
A utility pole new installation step for setting up the new utility pole in the same place as the existing utility pole,
An overhead wire attaching and moving step of removing the overhead wire from the temporary pole body and moving it to the new utility pole,
A temporary column removing step of removing the temporary column main body,
A utility pole original hole rebuilding method characterized by having.

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