JP2008072807A - Leading tool of cable traction string - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leading tool which can easily and surely hang a cable traction string between electric poles. <P>SOLUTION: A leading tool main body which is arranged inside a spiral hanger h wound with a hanging wire m hung between the electric poles and connects tips of the cable traction string R is arranged, and a drive roller 6 and a driven roller 14 are pivoted to the leading tool main body so as to be turnable. Then the drive roller 6 is linked to a motor 7 which uses a power supply mounted to the leasing tool main body as a drive source. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, a spiral cable hanger is wound around a suspension line (generally, a messenger wire) installed between utility poles, installed between the utility poles, and supported by the spiral cable hanger so that the cable is connected between the utility poles. The present invention relates to a leading tool for a cable traction string used for moving a cable along the hanging line when newly erected. That is, by pulling the cable traction cord from one utility pole to the other one pole position, the cable connected to the end side of the traction cord is supported by the spiral cable hanger and moved to move the cable. However, the present invention relates to a cable traction cord leading tool used to move the tip of a cable traction string from one electric pole side to the other electric pole position.

  A spiral cable hanger with a base end fixed radially to the leading head side of the main shaft, and a rear end portion of the elastic rod fixed on the rear end side of the main shaft to make the elastic rod arcuate. There is a structure in which the main shaft is moved between utility poles by being pressed by a rigid wire (for cable pulling) connected to the rear end of the main shaft (for example, Patent Document 1). ).

JP 2006-25590 A

  Since the conventional structure adopts a configuration in which it is moved by utilizing the rigidity of the rigid wire, its moving distance has its own limit, and is complicated and dangerous due to work at a high place.

  The present invention has been created with the object of providing a leading tool that can be made by simply and surely placing a cable pulling string between utility poles, paying attention to the disadvantages of the conventional example.

  It is arranged inside a spiral hanger that is wound around and supported by a suspension line built between utility poles, and further comprises a leading tool main body that connects the tip of a cable traction string, and a driving roller and a driven roller are provided on the leading tool main body. The roller is pivotally mounted, and an engagement groove is provided on the peripheral surface of each roller. A magnet that attracts the suspension line that engages with the engagement groove is provided along the peripheral surface on the inner wall side of the engagement groove. And a configuration in which the driving roller is connected to a motor having a power source mounted on the leading tool main body as a driving source.

  According to the present invention, when the leading wire main body is combined with the suspension line so that the suspension line provided between the utility poles is engaged with the engagement grooves provided on the peripheral surfaces of the drive roller and the driven roller, the engagement groove When the drive motor is operated in this state, the main body of the leading tool is maintained in a state where it is combined with the suspension line by the action of the magnet installed on the back wall side of the motor, and the drive wheel connected to the motor rolls, that is, is attracted to the suspension line. In this state, the rolling roller moves along the suspension line, and the driven roller also rolls and moves in a state where the suspension roller is attracted to the suspension line, and the tip of the cable pulling string is moved from one utility pole to the other utility pole. It is possible to provide a leading tool suitable for moving a cable traction string along a hanging line stretched between utility poles.

  The drawings show an embodiment of a cable pulling string leading tool according to the present invention, FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a partially enlarged sectional view of FIG. 5 is a sectional view taken along line -b, FIG. 5 is an enlarged sectional view taken along line aa in FIG. 2, and FIG. 6 is a sectional view taken along line cc in FIG.

  In the figure, reference numeral 1 denotes a main body of a leading tool, and the leading body 1 is a frame that is constructed by assembling a pair of strip-shaped main plates 1a, 1a with connecting members 1b,. The leading tool A is provided with a driving part 2 at the center in the longitudinal direction of the main body 1 and follower parts 3 and 3 at both front and rear ends, and between the driving part 2 and the driven part 3, the driving part 2 is provided. The batteries 4 and 4 in series (preferably rechargeable) serving as the power source (drive source) are arranged so as to be interchangeable.

  The drive unit 2 includes a drive roller 6 pivotally attached to the main plates 1a and 1a by a support shaft 5 and arranged so that a part protrudes from an upper edge of the main plate 1a, and the battery 4 A gear (transmission) device 8 is interposed between the drive motor 7 supported by the main body 1 as a power source, and the drive motor 7 is operated by a switch device (not shown) to drive the drive roller via the gear device 8. 6 can be rotated freely forward and backward.

  The drive roller 6 is configured by adhering outer materials 10 and 10 'made of a truncated cone-shaped metal plate to both surfaces of a disk-shaped core material 9 made of a magnet (in the embodiment, a neodymium magnet), and on the circumferential side surface thereof. An engagement groove 11 having an outer peripheral surface of the core member 9 as a back wall and an outer peripheral surface of the outer member 10, 10 'as a side wall is provided, and a suspension line m extending between utility poles is partially engaged with the engagement groove 11. In addition, it is attracted to the suspension line m by the magnetic force of the core member 9 constituting the inner wall of the engagement groove 11.

  Note that a gear portion 8a protrudes from the surface of one of the outer members 10 constituting the drive roller 6, and the first and second intermediate gears 8b and 8b 'are sequentially meshed with the gear portion 8a. The gear device 8 is configured by meshing a crown gear 8c coaxial with 8b 'with a drive gear 8d provided on the motor shaft 7a, and the drive roller 6 rotates (rolls) at a speed decelerated from the rotation speed of the drive motor 7. To do.

  The follower 3 pivotally attaches a wheel frame 13 to the main plates 1a and 1a by a support shaft 12, and can freely rotate a front and rear driven roller 14 about the support shaft 12 of the wheel frame 13. In the same manner as the driving roller 6, the part is arranged so that a part protrudes from the upper edge of the main plate 1a.

  The wheel frame 13 is configured by connecting frame plates 13a and 13a arranged opposite to each other in the same manner as the main body 1 with a gap by a connecting member 13b, and a central portion in the longitudinal direction (the front-rear direction of the main body 1). The shaft 12 is pivotally attached to the main body 1 so as to be swingable, and the driven rollers 14 are disposed on both front and rear sides.

  The driven roller 14 is configured by adhering an outer material 16 made of a truncated cone-shaped metal plate to both surfaces of a disk-shaped core material 15 made of a magnet (in the embodiment, a neodymium magnet), and the core material is formed on the peripheral side surface thereof. 15 is provided with an engagement groove 17 having the outer peripheral surface of the outer wall 16 as a back wall and the outer peripheral surface of the outer member 16 as a side wall. A suspension line m extending between the utility poles is partially engaged with the engagement groove 17, The suspension line m is adsorbed by the magnetic force of the core member 15 constituting the inner wall 17.

  Then, the engaging grooves 11 and 17 of the driving roller 6 and the driven roller 14 are engaged with the suspension line m so as to be disposed inside the spiral cable hanger h supported by the suspension line m. Then, since the magnet which is the material of the core material 9 constituting the rollers 6 and 14 is arranged in the engaging grooves 11 and 17, each of the rollers 6 and 14 is sucked (magnetically) attached to the suspension line m and led. The tool A is in a state of being hung on the hanging line m.

  In this state, when the circuit is closed by the switch and the drive motor 7 is operated, the drive roller 6 is rotated via the gear device 8 by the operation and is moved along the suspension line m while being attracted to the suspension line m. As the drive roller 6 rolls, the driven roller 14 also rolls while being attracted to the suspension line m, so that the guide A is stretched between the two power poles from one power pole to the other. The tip of the cable traction cord R connected to the connecting member 1b at the rear end in the forward direction can be moved from the one electric pole to the other electric pole side. .

  In addition, workability | operativity can be improved if the switch is operated by remote control from the ground.

  The number and arrangement of the driven rollers 14 may be selected as appropriate. However, when the pair of driven rollers 14 and 14 are arranged on the wheel frame 13 that is swingably assembled to the main body 1 as in the embodiment, When the suspension line m is formed during travel (the suspension line m hangs down) and one driven roller 14 of the wheel frame 13 is separated from the suspension line m, the other driven roller 14 is attracted to the suspension line m. This is preferable because the state can be maintained.

  The configuration of each of the rollers 6 and 14 need not be limited to that of the embodiment, but the engaging grooves 11 and 17 with which the hanging line m is partially engaged and the engaging grooves 11 and 17 are attracted to the hanging line m. For this reason, the magnets should be smooth when the rollers 6 and 14 are engaged (guided) with the suspension line m at the engaging grooves 11 and 17 and are attracted to the suspension line m. If a smooth rolling is expected, it should be arranged on the back wall (bottom) of the engaging grooves 11 and 17.

Front view. Plan view. The partially expanded sectional view of FIG. Bb sectional view taken on the line of FIG. The aa line expanded sectional view of FIG. FIG. 6 is a sectional view taken along line cc in FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Leading tool main body 6 Drive roller 7 Motor 14 Driven roller h Spiral hanger m Suspension line R Towing string for cable

Claims (1)

  It is arranged inside a spiral hanger that is wound around and supported by a suspension line built between utility poles, and further comprises a leading tool main body that connects the tip of a cable traction string, and a driving roller and a driven roller are provided on the leading tool main body. The roller is pivotally mounted, and an engagement groove is provided on the peripheral surface of each roller. A magnet that attracts the suspension line that engages with the engagement groove is provided along the peripheral surface on the inner wall side of the engagement groove. And a cable pulling string leading tool connected to a motor using a power source having the driving roller mounted on the leading tool main body as a driving source.

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