JP2008054417A - Pole connecting member and pole installing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pole installing tool which is simple in structure and can be manufactured at low cost, when installing a pole by using divided poles, and to provide a pole installation method which allows easy installation of the pole. <P>SOLUTION: This pole-connecting member 2 is a connecting member 2 for substantially concentrically connecting a cylindrical first pole 4 in which an electric wire 30 is accommodated, and a second pole 5 which is erected on the ground or the like, and comprises a cylindrical body having an upper cylinder opening and a lower cylinder opening. The pole connecting member is also constituted, in such a manner that a first pole fixing part for fixing the lower end of the first pole 4, inserted from the upper cylinder opening, is formed at the upper part of the cylindrical body; a second pole fixing part for fixing the upper end of the second pole 5, inserted from the lower cylinder opening, is formed at the lower part of the cylindrical body; and a draw-out port, for drawing out the electric wire 30 from the lower end of the first pole, is formed at the lower position of the first pole fixing part in the cylindrical body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connecting member for a utility pole, a utility pole installation tool, and a utility pole installation method.

  Usually, power supply at a construction site is performed by setting up a temporary power pole composed of a steel pipe or the like and drawing an overhead electric wire into the temporary power pole. In recent years, for power feeding to private houses, a service pole has been erected and an aerial wire has been pulled in.

  These temporary utility poles and lead-in utility poles require a predetermined height such as 5.5 m to 6 m or more above the ground so as not to interfere with vehicles traveling on the road, and are buried in the ground below the power pole. For example, 1 m or more is required. Therefore, the utility pole must have a total length of 6.5 m or more, for example. After transporting such a long and heavy utility pole to the installation site and building the pole, the electric wire is drawn into the hollow utility pole at the top of the utility pole. It was very difficult to carry out operations such as housing.

  Thus, a technique for installing a utility pole without using a long utility pole is disclosed in Patent Document 1 below. That is, the utility pole is divided into a member buried in the ground and a standing tube that stands up at the upper end of the buried member, and the buried member and the standing tube are connected using a flange and a hinge, There are technologies related to temporary electrification poles such as building pillars.

  In addition, as a method of installing a power pole without performing work at a height at the top end of the power pole, an electric wire is provided such that an opening is provided near the ground of the power pole, and the electric wire inserted from the opening is pushed up toward the top of the power pole. A laying method is disclosed in Patent Document 2 below.

JP 2003-304628 A Japanese Patent Laid-Open No. 1-114321

  However, the utility pole described in Patent Document 1 has a structure in which a flange is welded to the end of the utility pole, and this structure is labor and cost in manufacturing and installation, and the utility pole is very heavy. It is very difficult for a worker to install alone.

  Moreover, since the electric pole laying method described in Patent Document 2 has a considerable weight in the electric wire itself, the work of pushing up the length of, for example, 5 m against gravity is labor intensive and the work efficiency is not good.

  The present invention has been made in view of the above-described conventional problems, and when installing a utility pole using divided utility poles, a utility pole installation tool that has a simple structure and can be manufactured at low cost, and easily The purpose is to provide a utility pole installation method that can install utility poles.

  In order to achieve the above object, a connecting member for an electric pole according to the present invention connects a cylindrical first pole in which an electric wire is accommodated and a second pole erected on the ground or the like substantially coaxially. A first pole fixing that is a connecting member and includes a cylindrical main body having an upper cylindrical opening and a lower cylindrical opening, and fixes a lower end portion of a first pole inserted from the upper cylindrical opening to the upper part of the cylindrical main body. A second pole fixing portion for fixing the upper end portion of the second pole inserted from the lower cylinder opening is provided at the lower portion of the cylindrical main body, and further, the first pole fixing portion of the cylindrical main body is provided. In the lower position, an outlet for drawing out the electric wire from the lower end of the first pole is formed.

  Moreover, in the said structure, a conduit tube is used as a 1st pole.

  And the utility pole installation tool which concerns on this invention is a top part in which the connection member which has each above-mentioned structure, and the top part by which the upper end part of the 1st pole was attached, and the intake port for taking in an electric wire in the 1st pole was formed Material.

  According to the connecting member for an electric pole according to the present invention, the first pole fixing portion and the second pole fixing portion provided on the cylindrical main body are erected on the first pole that accommodates the electric wire, the ground, and the like. Since the second pole is connected, the structure of the connecting member becomes very simple and can be manufactured easily and inexpensively.

  In addition, since the electric pipe is used as the first pole, electric pipes that do not require pressure resistance, such as water pipes and refrigerant pipes, are thin and lightweight, and the installation work load is reduced.

  And according to the utility pole installation tool which concerns on this invention, it is provided with a connection member and a top member, the top member is crowned on the upper end part of the 1st pole in which the electric wire was accommodated, and the 1st pole and the 2nd pole The electric pole can be easily installed simply by connecting the two by the connecting member.

  The best embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall view showing a state in which a utility pole 40 is installed using the utility pole installation tool 1 according to one embodiment of the present invention. In the figure, a utility pole installation tool 1 according to this embodiment includes a connecting member 2 that vertically connects a first pole 4 in which an electric wire 30 is accommodated and a second pole 5 in which a lower part is embedded in the ground, coaxially. The top member 3 is attached to the upper end of the first pole 4.

  2A is a plan view of the connecting member 2, FIG. 2B is a front view, and FIG. 2C is a right side view. As shown in each figure, the connecting member 2 is mainly composed of an iron cylindrical main body 9 having, for example, a length of 250 mm, an outer diameter of 60 mm, and an inner diameter of 52 mm and a substantially circular cross section.

  The cylindrical main body 9 has an upper cylindrical opening 7 and a lower cylindrical opening 8. A first pole fixing portion 10 that fixes the vicinity of the lower end portion 18 of the first pole 4 inserted from the upper cylinder opening 7 is provided on the upper portion of the cylindrical main body 9. Further, a second pole fixing portion 11 for fixing the vicinity of the upper end portion 19 of the second pole 5 inserted from the lower cylinder opening 8 is provided at the lower portion of the cylindrical main body 9.

  The first pole fixing portion 10 has the following configuration. That is, for example, a bolt having a diameter of 6 mm is screwed into the cylinder from the outer surface of the cylindrical body 9 from the upper cylindrical opening 7 of the cylindrical main body 9 to a position about 2/5 in the longitudinal direction of the cylindrical main body 9. 12 is constituted. The lower end 18 of the first pole 4 is locked by the stopper 12. Furthermore, a bolt with a diameter of 6 mm is similarly screwed at two locations from the upper cylinder opening 7 of the cylindrical main body 9 in the longitudinal direction to form the fixtures 13, 13. 13, the outer peripheral surface near the lower end 18 of the first pole 4 is fixed to the cylindrical main body 9.

  Similarly, with respect to the second pole fixing portion 11, the stopper 14 constituted by a bolt screwed into the position of about two-fifths of the longitudinal direction from the lower cylindrical opening 8 of the cylindrical main body 9, The lower end 19 is locked. Further, the outer peripheral surface in the vicinity of the upper end portion 19 of the second pole 5 by the fasteners 15, 15 constituted by bolts screwed in two places from the lower cylindrical opening 8 of the cylindrical main body 9 to a position about 1/5 in the longitudinal direction. Is fixed.

  At the lower position of the first pole fixing portion 10 in the cylindrical main body 9, outlets 16, 16 for drawing out the electric wires from the lower end portion of the first pole 4 are formed. That is, an elliptical through hole having, for example, a short diameter of about 30 mm and a long diameter of about 50 mm is formed in the central portion in the longitudinal direction of the cylindrical main body 9 at two locations on the front and back surfaces. Is configured.

  Further, a branch hook 20 is provided in the vicinity of the outlets 16 and 16 of the cylindrical main body 9 to fix the branch line 33 connected to the anchor bolt 31. The branch hook 20 has, for example, a ring shape (inner diameter is 25 mm) having a diameter of about 40 mm, and is screwed to a bolt having a diameter of 10 mm that is inserted into the through hole provided in the side wall of the cylindrical main body 9 and fixed by welding. Has been.

  Both the first pole 4 and the second pole 5 use, for example, a conduit 17 having an outer diameter of 51 mm and a substantially circular cross section. The outer diameters of the first pole 4 and the second pole 5 are selected according to the type and number of wires to be accommodated, but those having a diameter of about 30 mm to 80 mm are preferable. When it is smaller than 30 mm, the thickness and number of wires that can be accommodated are limited. When it is larger than 80 mm, the weight of the pole becomes too large, making it difficult to work on a pillar. In the case of using a standard product of a conduit tube, an outer diameter of 39 mm, 51 mm, 63 mm, 75 mm, or the like can be used.

  The conduit 17 may be unused or used. The conduit 17 may be made of either synthetic resin or metal, but if a metal tube is used, the strength is good without deterioration of ultraviolet rays. Among metal conduits, in particular, when a thin conduit is used, it is lightweight, so that it is easy to work when installing a utility pole alone.

  The electric wire 30 accommodated in the first pole 4 includes a communication line such as a feeder line, a telephone line, a cable television, or an optical fiber. The second pole 5 is erected by being buried about 1 m in the ground.

  A switch housing box 35 that houses a switch and a watt hour meter 21 are attached to the lower portion of the first pole 4.

  FIG. 3A is a plan view of the top member main body 28 constituting the top member 3, and FIG. 3B is a front view of the top member 3. As shown in the figure, the top member 3 includes a top member body 28 having a substantially circular cylindrical cross section having a lower surface opening. An erection plate 38 is installed in the upper surface opening of the top member main body 28. A coupling member 37, for example, a bolt having a diameter of 6 mm, is screwed into a female screw hole formed in the erection plate 38, so that the disc-shaped lid member 22 is detachable in a state where the top member body 28 is covered. It is fixed. The lid member 22 is formed to have a larger diameter than the top member main body 28 and is provided to prevent rain, dust, and the like from entering the first pole 4 from the upper opening of the top member main body 28.

  At two locations on the front surface and the back surface of the top member 3, intake ports 23 and 23 for taking in the electric wire 30 connected to the overhead electric wire 32 into the first pole 4 are formed. The intake port 23 is a substantially U-shaped through hole in a front view, and has a size that allows the electric wire 30 to pass therethrough.

  The top member main body 28 is provided with a first pole fixing portion 25 that fixes the vicinity of the upper end portion 24 of the first pole 4 inserted from the lower opening of the top member 3. The first pole fixing portion 25 has the following structure. That is, the upper end portion 24 of the first pole 4 is locked at a height position of approximately one half of the entire top member main body 28 from the lower opening by a stopper 26 made of, for example, a bolt having a diameter of 6 mm, and similarly has a diameter. It is fixed by fixtures 27, 27 which are 6 mm bolts.

  Further, on the top of the top member 3, there are provided a branch line hook 29 for fixing a branch line 34 connected to the anchor bolt 31, and a pull-in hook 36 in which the ring opening surface is arranged orthogonal to the branch line hook 29. . The branch hook 29 and the pull-in hook 36 have the same structure as that of the branch hook 20 provided on the connecting member 2. The pull-in hook 36 may have the ring opening surface directed in the vertical direction in the same manner as the branch line hook 29.

  Subsequently, the utility pole installation method using the utility pole installation tool 1 will be described below. First, the second pole 5 is erected by burying the lower part of the second pole 5 in the ground 6 or the like on which the utility pole 40 is installed.

  Next, the electric wire 30 is accommodated in a state where the first pole 4 is tilted. In the operation of housing the electric wire 30 in the first pole 4, the upper end portion 24 of the first pole 4 is locked by the stopper 26 of the top member 3 and fixed by the fixing tool 27. Then, as shown in FIG. 4, the electric wires 30 and 30 are taken into the first pole 4 from the two intake ports 23 and 23, respectively.

  Here, when the thickness of the electric wire 30 is very large, the operation | work which takes in the electric wires 30 and 30 from the inlets 23 and 23 becomes very difficult. That is, passing the electric wire 30 through the inlet 23 while the lid member 28 constituting the top member 3 is fixed to the top member main body 28 means that the opening area of the inlets 23 and 23 with respect to the area occupied by the electric wire Since the ratio of N is narrow, it has considerable labor.

  Therefore, in such a case, the electric wires 30 and 30 are taken in with the coupling member 37 loosened and removed, and the lid member 22 removed from the installation plate 38. The top member body 28 has upper surface openings 45, 45. When the lid member 22 is removed, the opening areas of the intake ports 23, 23 are increased by the area of the upper surface openings 45, 45. After the electric wire 30 is taken in from the wide inlets 23, 23, the electric wire 30 having a large outer diameter can be easily taken in by fixing the lid member 22 to the installation plate 38.

  The electric wires 30 and 30 are communication wires such as a power supply line or a telephone line for connecting to the overhead electric wire 32 in the future, but the connection work with the overhead electric wire 32 is performed by the power supply company after the installation of the utility pole. Then, it is in an unconnected state. Further, one end of the branch line 34 is fixed to the branch line hook 29, and the other end of the branch line 34 is suspended.

  As shown in FIG. 5, the lower end portion of the first pole 4 is locked by the stopper 12 of the cylindrical body 9 of the connecting member 2 and fixed by the fixing tools 13 and 13. Then, the electric wires 30, 30 passed from the first pole 4 to the connecting member 2 are drawn out from the outlets 16, 16.

  Finally, the upper end portion 19 of the second pole 5 erected in advance on the ground is inserted into the lower tube opening 9 of the connecting member 2 and fixed to the second pole fixing portion 11. The free end of the branch line 34 fixed to the branch line hook 29 of the top member 3 is connected to and supported by the anchor bolt 31. Further, the branch line 33 is fixed to the branch line hook 20 of the connecting member 2 and supported by the anchor bolt 31.

  Thus, the first pole 4 and the second pole 5 are connected, and the standing work of the utility pole 40 is completed. And after completion | finish of a utility pole installation work, the watt-hour meter 21 and the switch accommodation box 35 are attached to the 1st pole 4, and are electrically connected with the electric wires 30 and 30. FIG.

  From the above, the first pole fixing part 10 and the second pole fixing part are connected to the first pole 4 in which the electric wire 30 is accommodated in advance and the second pole 5 standing on the ground. Therefore, the utility pole 40 can be installed very easily. That is, since the electric wire 30 is very heavy and difficult to handle, it is very hard work to climb the ladder, lift, etc. and perform the electric wire accommodation work at a high place after the electric pole is erected. There is no need to perform the electric wire handling work at such a high place, and the utility pole 40 can be installed very easily.

  In addition, it is not necessary to perform a work of pushing up a heavy electric wire having a length of, for example, 5 m against the gravity from the opening provided at the lower part of the utility pole as in the conventional case, so it takes a long time by a plurality of workers. Installation is possible even if there is only one worker without working.

  Further, since the connecting member 2 and the top member 3 have a very simple structure, they can be manufactured easily and at low cost. Further, even in the installation work of the utility pole, the building pillar can be constructed by a simple light work without strongly tightening and fixing the large flange welded to the connecting portion with the bolt and the nut.

  And since the electric pipe is used for the 1st pole 4 and the 2nd pole 5, pressure resistance is not required like a water pipe, a refrigerant | coolant piping, etc., the thickness of a pipe can be made thin, weight reduction can be achieved, and a utility pole The burden during installation work is reduced.

  Furthermore, when the used ones are reused, the used conduits that are discharged and discarded in large quantities in the dismantling work of buildings, facilities, and equipment can be effectively used. Therefore, since the waste material that should become garbage is used, the cost is reduced and it is good for the global environment. Since the length of the conduit is usually about 3.6 m to 4 m according to the standard, if two such conduits are connected, the height required for the utility pole 40 can be sufficiently secured. . It is also easy to adjust the wire pole height to a desired height by appropriately cutting the conduit.

  When the utility pole 40 is provided temporarily, the connecting member 2, the top member 3, the first pole 4 and the second pole 5 which are components of the utility pole 40 are all light weight, not bulky, and a simple structure. The work of disassembling and removing the utility pole 40 can be made very easy. The above parts that have been disassembled and withdrawn can be reused and used multiple times.

    In the above embodiment, the cylindrical main body 9 is made of iron having a substantially circular cross section with a length of 250 mm, an outer diameter of 60 mm, and an inner diameter of 52 mm. However, the cylindrical main body of the connecting member for a utility pole of the present invention is not limited thereto. The inner diameter of the cylindrical main body may be a size that can fix the first pole and the second pole. The cross-sectional shape of the cylindrical main body may be a square shape, a rectangular shape, a polygonal shape, or the like.

  The branch hooks 20 and 29 and the pull-in hook 36 have a ring shape (inner diameter is 25 mm) having a diameter of about 40 mm and are screwed to the side wall of the cylindrical main body 9 or the top member 3 using bolts. The size may be other sizes as long as 34 or the like can be fastened, and the shape is substantially circular as viewed from the front, as shown in the example attached to the top member 3 in FIG. A branch hook 29a or a pull-in hook 36a in which the upper and lower ends of the arc-shaped hook are fixed by welding may be used, and the end of the key-shaped hook as viewed from the front as shown in FIG. There may be. Although not shown, the same applies to the branch hook 20.

  Moreover, although the lid member 22 is formed in a disc shape, as shown in FIG. 6A, the lid member 22a may be a lid member 22a having a shape in which the peripheral edge of the disc projects downward.

  Moreover, although the switch accommodation box 35 and the watt-hour meter 21 are attached to the lower part of the first pole 4, either one or both of the switch accommodation box 35 and the watt-hour meter 21 are arranged above or in the longitudinal direction of the second pole 5. You may attach to a center part. The watt hour meter 21 is installed at a position of, for example, 2.5 m or less from the ground because the amount of power is visually observed by a person on the ground.

  Moreover, although the electric wire pipe was used as a 1st pole and a 2nd pole, it is not limited to this, A water pipe, a gas pipe, a building pole, etc. may be used. Moreover, although the bolt was used for the fixing method of the upper end part and lower end part of a 1st pole, and the upper end part of a 2nd pole, you may fit together and you may use an adhesive agent.

  In addition, the second pole 5 was erected by being buried about 1m in the ground, but the second pole is not limited to being buried in the ground, and may be where asphalt or concrete is laid, It may be fixed with cement or the like for the purpose of increasing the strength. Or you may mount a 2nd pole on the upper surface of asphalt or concrete solidified material, and may fix it with a plurality of anchor bolts and branch lines.

  In addition, the second pole 5 was erected by burying about 1 meter in the ground, but the second pole is not limited to the ground etc., but can be erected on asphalt, concrete, etc. It may be buried. Moreover, the depth which the 2nd pole 5 embeds is not limited to 1 meter, What is necessary is just to adjust in the range with which intensity | strength is maintained. Further, the lower portion of the second pole 5 may be erected by a method of fitting the lower portion of the second pole to a cylindrical base fixed to the ground by an anchor or the like without burying the lower portion of the second pole 5 in the ground.

It is a whole figure of the state which installed the utility pole using the utility pole installation tool concerning one embodiment of the present invention. It is the top view, front view, and right view of the connection member of the said utility pole installation tool. It is the top view and front view of the top member of the said utility pole installation tool. It is the elements on larger scale of the utility pole upper end at the time of installing a utility pole using the said utility pole installation tool. It is the elements on larger scale near the connection member at the time of installing an electric pole using the electric pole installation tool. It is a front view of the top member of the utility pole installation tool concerning other embodiments of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric pole installation tool 2 Connecting member 3 Top member 4 1st pole 5 2nd pole 6 Ground 7 Upper cylinder opening 8 Lower cylinder opening 9 Cylindrical main body 10 First pole fixing part 11 Second pole fixing part 16 Outlet 17 Electric wire tube 18 Lower end 19 of the first pole 19 Upper end 23 of the second pole Inlet 30 Electric wire

Claims (3)

A connecting member for connecting a cylindrical first pole that accommodates an electric wire and a second pole erected on the ground or the like with a substantially coaxial center, and a cylindrical main body having an upper cylindrical opening and a lower cylindrical opening. A first pole fixing portion for fixing a lower end portion of the first pole inserted from the upper cylindrical opening is provided at an upper portion of the cylindrical main body, and is inserted into the lower portion of the cylindrical main body from the lower cylindrical opening. The second pole fixing portion for fixing the upper end portion of the second pole is provided, and the outlet for pulling out the electric wire from the lower end portion of the first pole at a position below the first pole fixing portion in the cylindrical main body. A connecting member for a utility pole, characterized in that is formed. The electric pole connecting member according to claim 1, wherein a wire pipe is used as the first pole. The connecting member according to claim 1, and a top member that is attached to the upper end portion of the first pole and is formed with an inlet for taking in the electric wire into the first pole. A utility pole installation tool.

Images