JP5981808B2 - Utility pole temporary holder and utility pole rebuilding method - Google Patents

Description

  The present invention relates to a utility pole temporary holder used when rebuilding a utility pole, and a utility pole rebuilding method using the utility pole temporary holder.

When rebuilding a utility pole, it may be necessary to rebuild a new utility pole at the same position as the existing utility pole. Conventionally, the following procedure has been used in such a case.
(1) Cut an existing utility pole at the bottom (about 40-50cm height from the ground). By cutting, the utility pole (old pole) is divided into a pole body part (upper part for laying the electric wire) and a pillar buried part (a lower part including a part buried in the ground).
(2) A number of square bars (wood) are laid in the vicinity of the utility pole so as to have a height equivalent to the cutting height, and a temporary base is made.
(3) Place the column main body of the old column on a temporary base and support it upright.
(4) Remove the pillar burial section of the old pillar and build a new utility pole (new pole).
(5) Connect the pillar main body of the new pillar and the old pillar with a temporary support, and move the overhead wire from the old pillar to the new pillar.
(6) Remove the temporary support and remove the pillar body of the old pillar.

  In the above-described procedure (2), it is difficult to adjust the foundation to the same height as the buried portion of the old pillar when laying the square bar to make the foundation. This is because the height (thickness) of the square bar is constant and it is difficult to adjust the height.

  By the way, the height at which the power pole supports the electric wire (the ground clearance of the electric wire, etc.) is regulated to the minimum ground height Xm. Must keep the minimum ground clearance Xm. And it is assumed that the ground clearance such as the electric wire is in the vicinity of the minimum ground height Xm in the existing power pole to be cut. Therefore, when placing the pole main body portion of the cut electric pole on the temporary base, it is desirable that it can be supported at the same height position as before cutting.

  Moreover, in the above-described procedure (3), the state where the column main body portion of the old column is placed on the temporary base is exposed. For this reason, it gives the impression that it is a very unstable support. Furthermore, the old pillar is merely placed on a base made of wood, and the old pillar and the base are not restrained, and it is desired to support the old pillar in a more stable state.

  The present invention takes the above circumstances into consideration, and when reconstructing a new utility pole at the same position as the existing utility pole, when temporarily supporting the pole main body of the disconnected utility pole, at least the same height as before the cut The purpose is to be able to support in the vertical position.

  The utility pole temporary holder of the present invention includes a cylindrical trunk portion and a bottom portion that closes the lower opening end of the trunk portion, and the trunk portion has an opening window portion serving as an entrance of the utility pole at the upper portion of the circumferential surface. And a door for closing the opening window of the body so as to be openable and closable, and an accommodation space capable of accommodating gravel is formed inside the trunk below the opening window.

Moreover, the structure which opens and closes a door is not ask | required, but in order to make an installation space as narrow as possible, it is desirable to do as follows.
In other words, the door is disposed outside the trunk and is provided so as to be movable up and down with respect to the trunk.

Furthermore, although the bottom part may be fixed to the body part so as not to be detachable, it is desirable to improve the workability as follows.
That is, the bottom portion is provided so as to be detachable with respect to the trunk portion.

In order to further improve workability, it is desirable to do the following.
That is, the trunk includes a hook for lifting the trunk, the bottom includes a bottom plate and an upright plate standing along the outer periphery of the bottom plate, and the standing plate can be connected to the lower end of the trunk by a shaft member. Is provided.

Furthermore, in order to strengthen the connection between the pole main body portion of the cut utility pole and the utility pole temporary holder, it is desirable to do as follows.
That is, the trunk has a mounting plate in which a hole is formed, and a bolt and a nut can be fixed to the mounting plate.

  Moreover, the utility pole rebuilding method of the present invention using the above-mentioned utility pole temporary holder cuts an existing utility pole, temporarily places the pole main body portion of the cut utility pole in the vicinity, and embeds the pole of the cut utility pole It is premised on a utility pole construction method that removes a section, builds a new utility pole at the removed location, moves an overhead wire from the main pole section of the cut pole to a new utility pole, and removes the cut pole main section.

  And the utility pole rebuilding method of this invention is a process of carrying in the above-mentioned utility pole temporary holder near the existing utility pole, and accommodation of a utility pole temporary holder from the opening window part of the utility pole temporary holder in the state where the door was lowered. The step of filling the space with gravel, and the step of inserting from the open window of the utility pole temporary holder with the door lowered while moving the pole main body of the cut existing utility pole to the side and placing it on the gravel And a step of connecting the door to the body while raising the door and closing the opening window.

Further, among the above-described utility pole temporary holders, in the case where the fuselage is provided with a hook for lifting, and the upright plate at the bottom is provided so as to be connectable to the lower end of the fuselage by a shaft member, as follows: It is desirable to make it.
That is, in addition to the above-described steps, when removing the pole main body portion of the cut utility pole, the shaft member is removed, the connection between the lower end portion of the trunk portion of the trunk portion and the standing plate at the bottom portion is released, and then the suspension is suspended. And lifting the barrel upward through the lowering hook, thereby discharging the gravel from the inside of the barrel.

Furthermore, among the above-described utility pole temporary holders, in the case where the fuselage has a mounting plate in which a hole is formed, it is desirable to do the following.
That is, in addition to the above steps, the band is fixed so as to surround the pole main body portion of the utility pole cut above the utility pole temporary holder, and the band and the mounting board of the utility pole temporary holder And a step of spanning the plate in the vertical direction and fixing the plate to the band and the mounting plate with bolts and nuts.

  According to the present invention, since the accommodation space is formed inside the trunk portion, it is lighter and easier to carry in compared with the case where the inside of the trunk portion is clogged (no space), and gravel is accommodated at the destination. Then, the utility pole temporary holder will be very stable. Moreover, since the accommodation space is below the opening window, gravel can be filled into the accommodation space with the door open, and gravel filling work is easy. Furthermore, if the door is in an open state, the lower part of the old pillar cut with respect to the opening window can be moved in the horizontal direction so that it can be arranged inside the trunk, so that workability is good. In addition, by adjusting the amount of gravel to be put into the accommodation space, the height (upper end) of the cut utility pole can be made the same as before cutting, and the ground clearance such as electric wires is kept in the same state as before cutting. it can. If the door body is held in a raised state, the periphery of the pillar main body of the old pillar is surrounded by the door body and the fuselage, giving the impression that the old pillar is stably supported. It is done.

  In addition, if the door is provided so that it can be raised and lowered with respect to the fuselage, the open door will be along the lower side of the fuselage, so even if the door is open, the overall installation space can be small When the column main body portion of the old column is inserted from the opening window portion and moved to the inside of the trunk portion, it does not get in the way. And since the door is arrange | positioned on the outer side of the fuselage, even when the old pillar is accommodated inside (when gravel etc. is accommodated inside the fuselage), it can be easily operated from the outside. .

  Furthermore, if the bottom part is provided so as to be detachable with respect to the body part, when removing the gravel stored inside the body part, the gravel can be collected just by removing the body part. It becomes easy.

  In addition, if the bottom part is formed by the bottom plate and the upright plate standing along the outer periphery thereof, the connection between the lower end part of the fuselage and the upright plate at the bottom part can be released by removing the shaft member. By simply pulling up the barrel, the gravel stored inside the barrel is exposed, making it easier to collect gravel.

  Furthermore, if the fuselage has a mounting plate in which a hole is formed, a band is fixed to the pole main body of the cut electric pole, and the band and the mounting plate are fastened with bolts and nuts via the plate. Therefore, the cut utility pole can be supported more stably.

It is a disassembled perspective view which shows an example of the utility pole temporary holder of this invention. (A) and (b) are the front views and side views which show the state where the door opened. (A) and (b) are a front view and a side view showing a state in which the door is closed. It is an expanded sectional view which shows the structure where a door raises / lowers. (A) (b) (c) figure is explanatory drawing which shows the procedure of the utility pole rebuilding method of this invention. (A) (b) (c) figure is explanatory drawing which shows the procedure of the utility pole rebuilding method of this invention. (A) (b) (c) figure is explanatory drawing which shows the procedure of the utility pole rebuilding method of this invention.

  An example of the utility pole temporary holder of this invention is shown by FIGS. The utility pole temporary receiver 1 of the present invention is made of metal, and includes a cylindrical trunk portion 2 and a bottom portion 3 that closes a lower opening end of the trunk portion 2.

  The trunk | drum 2 has as a main structure the cylindrical trunk | drum 21 penetrated to a perpendicular direction, and the opening window part 22 is formed in the upper part of the surrounding surface of the trunk | drum 21. As shown in FIG. More specifically, in the illustrated example, the upper end surface of the body 21 has a substantially semicircular shape (an arc shape having a slightly longer arc length than the semicircle) in plan view, and an opening corresponding thereto. The window part 22 is also substantially semicircular (arc shape whose arc length is slightly shorter than the semicircle). Further, since the opening window portion 22 is formed downward from the upper end surface of the body 21, it opens not only in the radial direction of the body 21 but also in the upward direction. A cylindrical accommodation space 21 s is formed inside the body 21 below the opening window 22.

  Moreover, the trunk | drum 2 is provided with the door 23 which plugs up the opening window part 22 of the trunk | drum 21 other than the trunk | drum 21, so that opening and closing is possible. In the illustrated example, the door 23 has a substantially semicircular shape (an arc shape having a slightly longer arc length and radius than the opening window portion 22). In the following description, the arc length direction of the door 23 and the opening window 22 may be referred to as a lateral width direction.

  Moreover, the door 23 is arrange | positioned at the radial direction outer side of the trunk | drum 21, and is guided with respect to the trunk | drum 21 so that raising / lowering is possible. Specifically, a pair of guide rails 24, 24 are fixed to the outer peripheral surface of the body 21 in the vicinity of both side portions in the lateral width direction of the opening window portion 22. Each guide rail 24 extends in the vertical direction and opens toward one side in the width direction of the door 23. In the illustrated example, each guide rail 24 includes a fixing portion 24a that is fixed to the body 21, and a guide portion 24b that extends from the fixing portion 24a so as to support one side in the width direction of the door 23 from the outside in the radial direction. It consists of and. Further, these are formed by bending a metal plate, and a guide portion 24b bent in a V shape is continuous with a substantially straight (short arc shape) fixing portion 24a in plan view. Yes. Further, a triangular guide space is formed on the outer peripheral side of the body 21 in a plan view on the inner side of the guide rail 24, and this guide space is open toward one side in the width direction of the door 23.

  Sliders 23b are formed at both ends in the width direction of the door 23 with respect to the guide rail 24 as described above. That is, the door 23 includes a door main body 23a that extends in the arc direction in plan view, and a pair of sliders 23b that bend obliquely outward from both ends in the width direction of the door main body 23a. The slider 23b is in a state along the inner surface of one piece (front piece) 24c of the guide portion 24b bent in a V shape. Accordingly, the door 23 is provided so as to be movable up and down in such a manner that a pair of sliders 23 b and 23 b provided at both ends in the width direction are guided by a pair of guide rails 24 and 24 fixed to the body 21. Yes.

  Further, a stopper 25 that determines the lower end position of the door 23 that can be raised and lowered is formed to protrude from the lower end portion of the body 21, and the stopper 25 collides with the lower end surface of the door body 23a that is in the lowest position. Yes.

  Furthermore, in order to hold the door 23 in the raised position, a hole 21h is formed in the body 21 in the vicinity of the periphery of the opening window 22, and a hole is similarly formed in the door 23 in the raised position. The door 23 is positioned by inserting the shaft member 51 into the hole. More specifically, in the vicinity of both sides in the width direction of the opening window portion 22 h, the punched hole 21 h is formed in the body 21 with a vertical interval, and another punched hole 21 h is in the vicinity of the lower end of the opening window portion 22. Is formed. On the other hand, a hole 23h is formed in the raised door 23 at a location corresponding to the hole 21h of the body 21. By aligning the holes 21h and 23h of the body 21 and the door 23, inserting a bolt 51 as a shaft member, and fastening with a nut (not shown), the raised position of the door 23 is maintained. Incidentally, the shaft member is a rod body such as a bolt, a screw, a pin, etc., and the two members are positioned or connected by being inserted into the through holes (including screw holes) of the two members. Say things.

  Further, a pair of handles 26, 26 used for raising and lowering work are attached to the door 23 at intervals in the width direction of the door 23. In the illustrated example, each handle 26 includes a U-shaped handle main body portion 26a, and a rotary shaft portion 26b that protrudes from both ends of the handle main body portion 26a in the direction of expanding the U-shaped opening. ing. The connecting plate 27 is attached to the body 21 so that the rotating shaft portion 26b of the handle 26 is covered with the connecting plate 27 from the outside. The rotating shaft portion 26b is in a state where there is play between the body 21 and the connecting plate 27 surrounding the rotating shaft portion 26b, whereby the handle 26 is also held rotatably about the rotating shaft portions 26b on both sides. ing.

  Further, a mounting plate 28 protrudes upward from the upper end of the body 21, and a screw hole 28 a is formed in the mounting plate 28. In addition, a lifting hook 29 is fixed to the upper end of the body 21. In the illustrated example, the hook 29 is a metal bowl-shaped (L-shaped) rod, and one end of the hook 29 is fixed to the body 21 by welding or the like at a position away from the mounting plate 28, and the other end. The part is fixed to the mounting plate 28 by welding or the like. Thus, since the both ends of the hook 29 are firmly fixed to the body 21 and the mounting plate 28, the utility pole temporary receiver 1 can be lifted through the hook 29.

  Next, the bottom portion 3 mainly includes a circular bottom plate 31 that is slightly smaller than the inside of the lower end portion of the body 21 and a ring-shaped standing plate 32 that stands along the entire outer periphery of the bottom plate 31. A drain hole 31 a is formed in the bottom plate 31. In addition, the standing plate 32 is formed with a hole 32a at an interval in the circumferential direction, and a nut 33 is fixed to the inside of the standing plate 32 by welding or the like at the position where the hole 32a is formed. Has been. The female screw hole 33a of the nut 33 communicates with the extraction hole 32a of the upright plate 32, and another extraction hole 21a is formed in the body 21 at a position corresponding to the extraction hole 32a. Therefore, the bottom 3 can be attached to and detached from the body 2 by aligning the hole 21a of the body 21 with the hole 32a of the upright plate 32 of the bottom 3 and screwing the bolt 52 as the shaft member into the nut 33. It is attached with.

The utility pole rebuilding method using the utility pole temporary holder 1 described above is performed by the following steps (1) to (7).
(1) As shown in FIG. 5A, the utility pole temporary holder 1 is carried in the vicinity of the existing utility pole (old pole) 6. At this time, the door 23 of the utility pole temporary holder 1 is held lower than the opening window 22 of the body 21, and the bottom 3 is connected to the body 21 by the shaft member 52.
(2) As shown in FIG. 5 (b), since the cylindrical accommodation space 21s is formed below the opening window 22 inside the body 21, gravel is put into the accommodation space 21s.
(3) As shown in FIG. 5 (c), the old pillar 6 is cut at the lower part (40-50 cm high from the ground) while the old pillar 6 is suspended from above by a crane. The pole main body part (upper part) 6a of the cut old pillar 6 is moved sideways, the lower part of the column main body part 6a is inserted from the opening window part 22, and a utility pole temporary holder as shown in FIG. 6 (a) Stand on gravel housed inside 1. Since it stands on gravel, it can be stably supported even if the lower end surface (cut surface) of the column main body portion 6a of the old column 6 that has been cut is slightly inclined.
(4) As shown in FIG. 6 (b), a metal band 41 is fixed so as to surround the old pole 6 on the upper side slightly away from the utility pole temporary holder 1. Further, an angle plate 42 as a metal plate for fixing is bridged in the vertical direction between the band 41 and the mounting plate 28 of the utility pole temporary holder 1, and the angle plate 42 is attached to the band 41 and the mounting plate with bolts and nuts. By fixing with respect to 28, the old pole 6 and the utility pole temporary holder 1 are firmly connected, and safety is improved. In addition, the door 23 is raised and the door 23 is fixed to the body 21 with the shaft member 51. By using the handle 26 at this time, workability can be improved. Further, the door 23 is raised and positioned with respect to the body 21 by a shaft member (not shown).
(5) As shown in FIG. 6 (c), the column-buried portion 6b of the old column 6 is removed, and a new column 7 is built at the location of the hole in the ground formed by the removal. In addition, the new pillar 7 and the column main body 6a of the old pillar 6 are fixed at a plurality of height positions by the temporary support 43, and the new pillar 7 and the column main body 6a of the old pillar 6 are erected side by side. To support. Then, the overhead wire attached to the old pillar 6 is transferred to the new pillar 7.
(6) As shown in FIG. 7A, the temporary support tool 43 is removed from the new pillar 7 and the old pillar 6, and the angle plate 42 is removed from the utility pole temporary receiver 1. Further, as shown in FIG. 7B, the door 23 of the utility pole temporary holder 1 is lowered and the column main body portion 6 a of the old column 6 is moved laterally from the opening window portion 22 and removed.
(7) As shown in FIG. 7C, the shaft member 52 is removed from the utility pole temporary holder 1, and the connection between the bottom 3 and the body 21 is released. Subsequently, gravel falls off the body 21 by hooking the lifting rope 44 on the pair of hooks 29, 29 of the utility pole temporary holder 1 and lifting it upward. Thereafter, the gravel is removed and the bottom 3 is collected.

  The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof. For example, the body portion 2 is not limited to a cylindrical shape, and may have another shape such as a rectangular tube shape. In this case, the bottom portion 3 is also shaped. In addition, the bottom 3 has a smaller diameter than the body 21 of the body 2 and is configured such that the upright plate 32 of the bottom 3 fits inside the body 21, but is not limited thereto. The bottom 3 may have a diameter larger than that of the body, and the standing plate 32 of the bottom 3 may be configured to be fitted to the outside of the body 21. The mounting plate 28 is not limited to the one protruding from the body 21, and a part of the body 21 may be used as the mounting plate.

1 telephone pole temporary holder 2 body 21 body 21a hole 21h hole 21s accommodation space 22 opening window 23 door 23a door body 23b slider 23h hole 24 guide rail 24a fixing part 24b guide part 24c one piece 25 stopper 26 handle 26a handle Main body portion 26b Rotating shaft portion 27 Connecting plate 28 Mounting plate 28a Hole 29 Hook 3 Bottom 31 Bottom plate 31a Drain hole 32 Standing plate 32a Hole 33 Nut 33a Female screw hole 41 Band 42 Angle plate 43 Temporary support tool 44 Lifting rope 51 Bolt (shaft member)
52 bolt (shaft member)
6 old pillar 6a pillar body 6b pillar buried part 7 new pillar

Claims (8)

A cylindrical trunk and a bottom that closes the lower open end of the trunk,
The trunk includes a fuselage having an opening window serving as an entrance of a utility pole at the top of the peripheral surface, and a door that closes the opening window of the fuselage so as to be opened and closed.
A utility pole temporary holder characterized in that an accommodation space capable of accommodating gravel is formed inside the trunk below the opening window.   The utility pole temporary receiver according to claim 1, wherein the door is disposed outside the trunk and is provided so as to be movable up and down with respect to the trunk.   3. The utility pole temporary holder according to claim 1, wherein a bottom portion is detachably provided with respect to the trunk portion. The torso is equipped with a lifting hook on the torso,
The bottom includes a bottom plate and an upright plate that rises along the outer periphery of the bottom plate,
4. The utility pole temporary holder according to claim 3, wherein the upright plate is provided so as to be fitted to the lower end portion of the body and to be connected to the lower end portion of the body by a shaft member. The fuselage has a loophole mounting plate formed, the mounting plate bolt-nut characterized in that it is fixed claim 1, 2, 3 or 4, wherein the electric pole temporary receiving fixture. After cutting the existing power pole, temporarily place the main pole body of the cut power pole in the vicinity, remove the pole burying section of the cut power pole, build a new power pole at the removed location, In the utility pole rebuilding method, an overhead wire is relocated from the pole body to a new pole, and the cut pole body is removed.
A step of carrying the utility pole temporary receiver according to any one of claims 1 to 5 in the vicinity of an existing utility pole;
Filling gravel into the storage space of the utility pole temporary holder from the opening window of the utility pole temporary holder with the door lowered; and
Inserting from the opening window part of the utility pole temporary holder in a state where the door is lowered while moving the pole body part of the cut utility pole to the side, and placing it on the gravel;
And a step of connecting the door to the trunk while raising the door and closing the opening window. After cutting the existing power pole, temporarily place the pole main body of the cut power pole in the vicinity, remove the pole burying section of the cut power pole, build a new power pole at the removed location, In the utility pole rebuilding method, the overhead wire is moved from the pole body to the new utility pole, and the pole body of the severed pole is removed.
Carrying the electric pole temporary holder according to claim 4 in the vicinity of an existing electric pole;
Filling gravel into the storage space of the utility pole temporary holder from the opening window of the utility pole temporary holder with the door lowered; and
Inserting from the opening window part of the utility pole temporary holder in a state where the door is lowered while moving the pole body part of the cut utility pole to the side, and placing it on the gravel;
Connecting the door to the body while raising the door and closing the opening window,
When removing the pole main body of the cut utility pole, remove the shaft member to release the connection between the lower end of the trunk of the trunk and the upright plate at the bottom, and then via the hanging hook Lifting upwards, thereby discharging gravel from the inside of the barrel,
A utility pole rebuilding method characterized by comprising: After cutting the existing power pole, temporarily place the pole main body of the cut power pole in the vicinity, remove the pole burying section of the cut power pole, build a new power pole at the removed location, In the utility pole rebuilding method, the overhead wire is moved from the pole body to the new utility pole, and the pole body of the severed pole is removed.
Carrying the electric pole temporary holder according to claim 5 in the vicinity of an existing electric pole;
Filling gravel into the storage space of the utility pole temporary holder from the opening window of the utility pole temporary holder with the door lowered; and
Inserting from the opening window part of the utility pole temporary holder in a state where the door is lowered while moving the pole body part of the cut utility pole to the side, and placing it on the gravel;
Connecting the door to the body while raising the door and closing the opening window,
Fix the band so that it surrounds the pole main body of the utility pole that is cut above the utility pole temporary holder, and bridge the plate vertically between the band and the installation board of the utility pole temporary holder. And a step of fixing the plate to the band and the mounting plate with bolts and nuts.

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