JPH11285122A - Pole replacing method and assisting tool for pole replacement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assisting tool for replacement of pole assuring replacement of old pole to a new pole without raising the old pole. SOLUTION: A supporting tool for replacement is formed of a support tool 14 and a strut tool 16. The support tool 14 is provided with a holding means which is provided at its external surface a leg end connecting means having a first support leg to be connected with this leg end connecting means. Meanwhile, the strut tool 16 is provided with a second support leg and a load receiving means. When the assisting tool for replacement is structured as explained above, a wood pole 12 cut at the grounding area is moved to expose the stump area 60 and it is then removed from the ground and a new pole 66 is then inserted to the hole. The wood pole 12 can be replaced with a new pole 66 without raising the wood pole by transferring the cable to the new pole 66 from the wood pole 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of replacing a utility pole and an auxiliary tool for replacing a utility pole, and more particularly to a utility pole replacement method and a utility pole which can be replaced without ascending to an old utility pole to be replaced. To a replacement aid.

[0002]

2. Description of the Related Art Conventionally, a number of wooden telephone poles have been used for arranging cables used for power transmission, telephone and telegraph. When replacing such a wooden power pole, first, the wooden power pole to be replaced is raised, and cables are removed from the wooden power pole. He pulled out the wooden utility pole (with cables removed) from the ground, erected a new utility pole in its place, and connected the cables to the new utility pole.

As another construction method, first, a new installation hole for a utility pole is excavated near a wooden utility pole to be replaced.
Then, a new utility pole is hung from the wooden utility pole and inserted into the installation hole. In this way, after the new and old telephone poles were lined up, cables were transferred.

[0004]

However, the above-mentioned wooden electric pole is easily rotten due to the influence of rainwater and the like, and when it is raised, the wooden electric pole may be broken and an operator may fall. If the surrounding area of the wooden pole is wide, the work of changing the pole can be carried out without using a pole at a height by using equipment such as an aerial work vehicle or a crane. Such as a crane).

The present invention focuses on the above-mentioned conventional problems, and provides an electric pole replacement method and an auxiliary electric pole replacement tool that can be replaced with a new electric pole without rising to an old electric pole even in a narrow place. The purpose is to:

[0006]

SUMMARY OF THE INVENTION According to the present invention, an old telephone pole is cut off the ground, and if the cut electric pole is moved, the stump of the telephone pole is exposed. It was made based on the knowledge that it can be established.

[0007] That is, the method of replacing a telephone pole according to the present invention is as follows.
A method of exchanging a utility pole for removing a utility pole and erecting a new utility pole, wherein a holding portion surrounding the utility pole is positioned at a midway of the utility pole with support legs pulled out from the holding portion, and a diameter of the holding portion is determined. In addition to setting the range in which the utility pole can be moved while the utility pole is connected and cables are cut and cut below the holding portion while standing, and a projecting tool that makes contact with the upper end side of the utility pole is installed, the cable is installed. After receiving the tension from the electric pole, the electric pole is cut while the cables are connected, and the cut electric pole is moved in the holding portion to expose the stump of the electric pole. The procedure was such that the new utility pole was inserted into the hole from which the stump was pulled out and the stump was removed, and the cables were transplanted from the utility pole to the new utility pole by ascending to the new utility pole erected.

[0008] The replacement auxiliary tool according to the present invention is a utility pole replacement aid used when removing a utility pole,
A holding part surrounding the telephone pole and a support leg drawn out from the holding part, the holding part has a diameter that allows the telephone pole cut below the holding part to move while standing up. . In addition, it is desirable to provide a projecting tool that makes contact with the utility pole above the holding unit.

[0009]

According to the above construction, the moving range of the cut utility pole can be set by attaching the holding portion and the extension to the utility pole to be replaced. Then, the utility pole to which the cables are attached is cut, and if the utility pole is moved while standing along the cutting direction (lateral direction), the stump (of the utility pole) is exposed. Here, the stump can be lifted in the vertical direction because it does not interfere with the pole that has moved. And if you insert a new telephone pole in the hole after pulling out the stump from the ground, you can ascend to this new telephone pole and transfer the cables of the old telephone pole to the new telephone pole, and ascend to the old telephone pole It can be unnecessary.

[0010] Further, in the utility pole replacement aid, a range in which the holding portion can move while the utility pole is standing is set, and the stump can be exposed by moving the utility pole within this movement range. In addition, even if tension is applied from cables or the like connected to the power pole and the power pole is inclined, the holding portion supports the power pole, so that the moment does not increase and the power pole can be prevented from falling. In addition, if the projecting device is installed so as to receive the tension from the cables, it is possible to prevent the utility pole from tipping over with a higher tension.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a power pole replacement method according to an embodiment of the present invention; FIG. 1 is a process explanatory view showing a procedure for removing a wooden power pole and erecting a new power pole,
FIG. 2 is a perspective view showing a state in which a utility pole replacement aid is mounted on a wooden utility pole, FIG. 3 is a configuration explanatory view of a support tool constituting the utility pole replacement aid, and FIG. 4 is a utility pole replacement. FIG. 2 shows a configuration explanatory view of a projecting tool that constitutes the auxiliary tool. As shown in FIGS. 2 to 4, the utility pole replacement assisting tool 10 is formed separately from the support tool 14 that guides the middle part of the wooden utility pole 12 to be replaced, and the support tool 14. A projecting tool 16 is provided above the support tool 14 and contacts the wooden utility pole 12.

The support member 14 includes a holding portion 18 capable of surrounding the wooden utility pole 12, and a first support leg 20 connected to the holding portion 18. The holding portion 18 has a form in which ends of a semicircular sheet metal 22 having a radius of curvature larger than that of the wooden utility pole 12 are joined to each other, and a hinge 24 is provided at one end of the joined portion. 22 are connected to each other and the two (sheet metal 22) can be expanded. Also, the butting portions on the other side are bent outwardly in an L-shape, and a connection bolt 30 is inserted through a stop hole 28 provided in the bent portion 26 and is sandwiched between a fastening nut 32. Thus, the bent portions 26 are brought into close contact with each other, and a state in which the sheet metals 22 abut against each other can be maintained.

The outer surface 34 of the sheet metal 22 has a first support leg 2
A plurality of leg end connection portions 36 for making a connection with zero are provided at random. The leg end connection portion 36 has a thin plate shape formed in a rectangular shape.
A pin (not shown) is inserted through the mounting hole 38 to enable connection between the leg end connecting portion 36 and the first support leg 20.

The first support leg 20 is connected to the leg end connecting portion 36 provided on the outer surface 34 of the sheet metal 22 in this way. The first support leg 20 has a rod-like shape, and has a hole (not shown) through which a pin is inserted together with a mounting hole at one end thereof.
0 is connectable to the holding unit 18. A ground plate 40 is pin-connected to the other end of the first support leg 20,
By bringing the ground plate 40 into close contact with the ground surface, the area of the ground plate 40 with the ground surface is increased, so that the first support leg 20 is prevented from generating a side slip or the like. The first support leg 20
Are connected to the holding portion 18 at intervals of about 120 degrees, and a ring-shaped chain 42 is provided on the grounding plate 40 side of the three first support legs 20 so as to connect the ends of the legs. In addition, when the first support leg 20 is expanded, the degree of expansion is limited.

On the other hand, the projecting tool 16 has a second support leg 44 as a main body, and a load receiving portion 46 for making contact with the wooden utility pole 12 is provided at one end. The second support leg 44 has a two-stage telescopic structure including a housing side 44A and a protruding side 44B, and a plurality of through holes 48 are provided on the side of the protruding side 44B. By inserting a pin (not shown), the projecting side 44 </ b> B
A is prevented, and the entire length of the second support leg 44 can be set.

The load receiving portion 46 provided at the distal end of the protruding side 44A is formed in a U-shaped cross section.
The size is set so that the wooden utility pole 12 can be taken in. Rubber 52 is adhered to the inside of the load receiving portion 46, and when the wooden utility pole 12 oscillates, the
The vibration is absorbed by the rubber 52 without being directly transmitted to the support leg 44 side. At the end of the housing side 44B, a ground plate 54 is provided via a pin joint similarly to the first support leg 20, so that the ground area can be reduced even if the inclination of the second support leg 44 with respect to the wooden utility pole 12 fluctuates. We can secure it.

The procedure for removing the wooden power pole 12 and erecting a new power pole using the wooden power pole replacement tool 10 thus configured will be described with reference to FIG. FIG. 1A shows a state in which the wooden utility pole 12 to be removed is erected on the ground surface 56. Such a wooden utility pole 12 has a support tool 1
4 and the extension 16 are mounted. In order to attach the support tool 14 to the wooden utility pole 12, first, the sheet metals 22 are expanded by the hinge 24. Then, the wooden utility pole 12 is taken into the holding portion 18, and thereafter, a bolt 30 is inserted into a stop hole 28 provided in the bent portion 26, a fastening nut 32 is screwed into the bolt 30, and the bent portions 26 are sandwiched. . After the wooden utility pole 12 is thus surrounded by the holding part 18, the leg end connection part 36 may be selected so that the holding part 18 is horizontal to the wooden utility pole 12, and the first support leg 20 may be attached in a tripod shape. Then, a chain 42 is attached to the leg ends of the three first support legs 20, and the first support legs 2
Expand 0.

As described above, the support tool 14 is connected to the wooden utility pole 12.
After that, the extension 16 is attached to the wooden utility pole 12. In order to attach the projecting tool 16 to the wooden telephone pole 12, it is first checked which direction the force applied to the wooden telephone pole 12, that is, the tension from the cables attached to the wooden telephone pole 12 is. And the strut 16 is installed toward the wooden utility pole 12 so as to cancel this tension.
At this time, a plurality of projecting members 16 may be installed to receive the tension while dispersing the tension. Note that the support device 14 and the extension device 1
FIG. 2B shows a state where No. 6 is mounted.

After the support tool 14 and the extension tool 16 are mounted, the ground of the wooden utility pole 12 is cut off as shown in FIG. 3C, and the cut wooden utility pole 12 is slid on the laying plate 58. It is moved in parallel inside the holding part 18. And wooden telephone pole 1
2 is moved at least by its diameter to expose the stump 60.

After the stump 60 is exposed in this manner, as shown in FIG. 4D, a chain block 62 is hung on the middle part of the wooden utility pole 12, and the chain block 6 is suspended.
The chain 64 extended from 2 is connected to the stump 60. Then, the chain block 62 is operated, and the stump 60 is pulled out from the underground.

After the stump 60 has been pulled out of the ground, one of the first support legs 20 is detached from the holding portion 18 as shown in FIG.
Move along the moving direction of. Then, the hole from which the stump 60 has been pulled out and the holding portion 18 do not interfere with each other, so that a new telephone pole 66 can be inserted into this hole. Further, at the time of this movement, a new protruding tool 16 may be installed in order to strengthen the balance of the wooden utility pole 12 (see the broken line in the figure). And after erecting a new telephone pole 66,
The pole is moved up to the new utility pole 66, and the cables are moved from the wooden utility pole 12 to the new utility pole 66 side. Also at this point new pole 6
A metal wheel 68 (see FIG. 8) is installed on the top of the wooden pole 6 and a wire rope 70 (see FIG. 8) guided by the metal wheel 68 is attached to the top of the wooden utility pole 12. Connect to.

Note that, in FIG.
Although the support leg 20 was removed to eliminate the interference between the hole from which the stump 60 was pulled out and the holding portion 18, there was no need to stick to this form, and when the gap between the wooden telephone pole 12 and the holding portion 18 was large, The holding section 18 may be moved without removing the first support leg 20 as shown in FIG.
The new utility pole 66 for replacing the wooden utility pole 12 is a two-tiered upper and lower type made of steel pipe.
At D, the ground is set up on the ground surface 56 side and the upper side 6
The cable is held at 6U.

After the new electric pole 66 is erected and the cables are moved as shown in FIG. 7 (7), the support tool 14 is removed from the wooden electric pole 121. This can be done by removing the ring-shaped chain 42 from the end of the first support leg 20, lowering the holding portion 18 to the ground surface 56 side, and removing the tightening nut 32 from the bolt 30 at this position. And support tool 14
Is removed, the wooden utility pole 12 is suspended using the wire rope 70, and the extension 16 is removed.
If the end of the wooden power pole 12 is pulled along the ground surface 56 while suspending the tip of the wooden power pole 12 as shown in FIG. The use of the wooden utility pole replacement aid 10 makes it possible to replace a utility pole in a narrow place where equipment such as a crane cannot be used without ascending to the wooden utility pole.

[0024]

As described above, according to the present invention, there is provided a method of exchanging a power pole for removing a power pole and erecting a new power pole,
The holding portion surrounding the power pole is positioned at the middle of the power pole with support legs pulled out from the holding portion, cables are connected at the diameter of the holding portion, and cuts are made below the holding portion. Along with setting the range in which the telephone pole can be moved while standing, a tensioning tool is provided at the upper end side of the telephone pole to receive tension from the cables, and then the cables are connected. After cutting the power pole and moving the cut power pole in the holding portion to expose the stump of the power pole, pull out the stump and insert the new power pole into the hole from which the stump was pulled out, and stand upright. From climbing to the new telephone pole that was to transplant the cables from the telephone pole to the new telephone pole,
Even in a narrow place, it is possible to carry out the replacement work of the utility pole without ascending to the utility pole.

[Brief description of the drawings]

FIG. 1 is a process explanatory view showing a procedure for removing a wooden power pole and erecting a new power pole.

FIG. 2 is a perspective view showing a state in which a utility pole replacement aid is mounted on a wooden utility pole.

FIG. 3 is a configuration explanatory view of a support tool constituting an auxiliary tool for replacing a utility pole;

FIG. 4 is a configuration explanatory view of a projecting tool that constitutes a utility pole replacement aid.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Auxiliary tool for wooden pole replacement 12 Wooden pole 14 Support tool 16 Strut tool 18 Holder 20 First support leg 22 Sheet metal 24 Hinge 26 Bent portion 28 Stop hole 30 Bolt 32 Tightening nut 34 Outer surface 36 Leg end connection Reference Signs List 38 mounting hole 40 grounding plate 42 annular chain 44 second support leg 44A receiving side 44B projecting side 46 load receiving part 48 through hole 50 opening 52 rubber 54 grounding plate 56 ground surface 58 flooring plate 60 stump 62 chain block 64 chain 66 New telephone pole 66D Lower side 66U Upper side 68 Gold wheel 70 Wire rope

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kanno 4-13-13 Akasaka, Minato-ku, Tokyo Inside Kyowa Exio Co., Ltd. (72) Inventor Nanbu Hayashi 4-13-13 Akasaka, Minato-ku, Tokyo Stock Kyowa Exio Co., Ltd. (72) Inventor Hideo Nagai 4--13-13 Akasaka, Minato-ku, Tokyo Kyowa Exio Co., Ltd.

Claims (3)

[Claims] 1. A method of exchanging a power pole for removing a power pole and erection of a new power pole, wherein a holding portion surrounding the power pole is positioned at a middle of the power pole with support legs drawn out from the holding portion,
Cables are connected by the diameter of the holding portion, and a range in which the electric pole, which is cut below the holding portion, can be moved while standing up, is set, and a strut making contact with the upper end side of the electric pole is provided. After installing a tool and receiving the tension from the cables, the utility pole is cut while the cables are connected, and the cut utility pole is moved in the holding portion to expose the stump of the utility pole. After the stump is pulled out, the new telephone pole is inserted into the hole from which the stump was pulled out, and the cable is transplanted from the telephone pole to the new telephone pole by climbing up to the new telephone pole erected. How to replace a telephone pole. 2. A utility pole replacement aid used when removing a utility pole, comprising: a holding portion surrounding the utility pole; and support legs extending from the holding portion. A utility pole replacement aid, characterized in that the utility pole cut below the section has a diameter that allows the utility pole to move while standing. 3. The utility pole replacement aid according to claim 2, further comprising a projecting tool provided in contact with said utility pole above said holding portion.