JP5081597B2 - Cable tow strap lead - Google Patents

Description

  In the present invention, when a cable is newly installed between utility poles so as to be supported by a helical cable hanger placed between the utility poles by winding around a suspension line (generally, a messenger wire) provided between the utility poles, The present invention relates to a leading tool for a cable traction string used for moving a cable along the suspension line. That is, by pulling the cable traction string from one power pole to the other one power pole position, moving the cable connected to the terminal side of the traction string to the helical cable hanger and moving it, The cable is installed between utility poles, but the present invention relates to a leading tool for a cable drawstring used to move the tip of a cable drawstring from one utility pole side to the other utility pole position. is there.

  The rear end portion of the elastic rod radially attached with the base portion fixed to the leading head side of the main shaft is fixed at the rear end portion side of the main shaft, and the elastic rod is arcuate and spiraled There is a structure that is arranged on the inner edge of the cable hanger and is pressed with a rigid wire (for cable pulling) connected to the rear end of the main shaft to move the main shaft between utility poles (for example, patent Literature).

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 cable hanger that is wound and supported by a suspension line built between utility poles, and further comprises a rod rod-shaped lead main body that connects the tip of a cable traction string, and an appropriate place for the main lead body In addition, a driving wheel and a driven wheel each provided with a magnet attracted to the suspension line and an engagement groove engaging with the suspension line are provided, respectively, and the bottom edge of the engagement groove is closer to the suspension line than the magnet. In addition, the driving wheel 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 suspension line provided between the utility poles is engaged with the engagement groove provided on the peripheral surface of each of the driving roller and the driven roller, and the leading tool main body is combined with the suspension line, the action of the magnet is achieved. The main part of the leading tool is attracted to the suspension line, and the attracted state is maintained by the bottom edge of the engagement groove that is closer to the magnet being in contact with the suspension line. When the drive motor is operated in this state, it is connected to the motor. The drive wheel moves along the rolling or hanging line, and the driven roller also rolls and moves along with the movement, and the tip of the cable pulling string can be moved from one power pole to the other. 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 showing a use state, FIG. 2 is a partially cutaway front view, and FIG. 3 is aa of FIG. FIG. 4 is an enlarged sectional view taken along line bb in FIG.

  In the figure, reference numeral 1 denotes a leading tool main body, the leading tool main body 1 is composed of a streamlined rod-shaped body made of synthetic resin, and the leading tool A includes a driving unit 3 having a driving wheel 2 on the tip side of the main body 1. Is provided with a driven portion 5 having a driven (auxiliary) wheel 4 on the rear end side, and a drive motor 6 for the drive wheel 2 and a power source for the motor 6 at an intermediate portion between the drive portion 3 and the driven portion 5. The gear device 8 interposed between the battery 7 and the motor 6 and the drive wheel 2 is housed and mounted.

  The drive unit 3 is provided with magnets 10 on both the front and rear sides of the drive wheel 2 that is rotatably supported by the main body 1 so that a part of the main body 1 protrudes from the upper edge of the main body 1 by the support shaft 9. 2 and a drive motor 6 supported by the main body 1 using the battery 7 as a power source, the gear device 8 is interposed, and the drive motor 6 is operated by the switch device 11 so that the gear device 8 is operated. Thus, the drive wheel 2 can be rotated forward and backward.

  The drive wheel 2 has an engagement groove 12 on its peripheral surface, and a suspension line m installed between the utility poles engages and contacts the engagement groove 12 (by the action of the magnet 10 on the suspension line m), The main body 1 protrudes from the magnet 10 and is close to the suspension line m.

  The bottom edge 12a is relative to the form of the engagement groove 12 and the relationship between the engagement groove 12 and the diameter of the suspension line m, and refers to the portion in contact with the suspension line m by the action of the magnets 10 and 10 '. It doesn't mean something like that (it doesn't have to be the bottom).

  The gear device 8 sequentially meshes the first and second intermediate gears 8b and 8b 'with a driven gear 8a that is coaxial with the drive wheel 2 and rotates integrally with the drive wheel 2, and the second intermediate gear 8b'. And a crown gear 8c coaxial with the drive gear 8d provided on the motor shaft 6a, and the drive wheel 2 rotates (rolls) at a reduced speed of the drive motor 6.

  The follower 5 pivotally attaches a wheel frame 14 to the main body 1 by a support shaft 13 so that the follower wheel 4 can roll around the support shaft 13 of the wheel frame 14. A magnet 10 ′ is provided between the driven wheels 4 and 4, and the bottom edge of the engaging groove 12 ′ of the driven wheel 4 engages with the suspension line m from the magnet 10 ′ in the same manner as the driving wheel 2. 12'a protrudes from the main body 1 and is close to the suspension line m.

  The magnets 10 and 10 'bring the leading tool A into contact with the suspension line m at the engaging grooves 12 and 12' by the attraction force (magnetic force), and maintain the contact state (therefore, the weight of the magnets 10 and 10 '). The weight of the leading tool A including the magnet is stronger than the weight of the leading tool A), and on the other hand, it moves with the movement along the suspension line m of the driving wheel 2 that rolls by driving the motor 6 (accordingly, the magnet 10, The rotational force of the driving motor 6 to the driving wheel 2 is stronger than the attractive force of 10 '), and the balance between the strength of the magnet and the weight of the leading tool A or the strength of the rotating force of the driving motor 6 to the driving wheel 2 is an experiment. (Test) is determined as appropriate.

  The wheel frame 14 is constructed by connecting frame plates 14 a and 14 a arranged opposite to each other with a gap by a connection piece 14 b, and a central portion in a longitudinal direction (front-rear direction of the main body 1) is formed by the support shaft 13. The driven wheel 4 is pivotally attached to both the front and rear sides, and the magnet 10 'is fixed to the connecting piece 14b interposed between the driven wheels 4 and 4, and the shaft is supported depending on the state of the suspension line m. 13, at least one of the driven wheels 4 and 4 comes into contact with the suspension line m and rolls along with the movement of the drive wheel 10 to move the leading tool A along the suspension line m. It can be done smoothly.

  Further, the engaging grooves 12, 12 'of the driving wheel 2 and the driven wheel 4 are engaged with the suspension line m so that the leading tool A is disposed inside the spiral cable hanger h supported by the suspension line m. As a result, the drive wheel 2 and the like are brought into contact with the suspension line m at the engagement grooves 12 and 12 ′ by the action of the magnets 10 and 10 ′ disposed in the vicinity, and the leading tool A is in a state of being suspended from the suspension line m.

  In this state, when the circuit is closed by the switch and the drive motor 6 is operated, the drive wheel 2 is rotated through the gear device 8 by the operation, and the driven wheel 4 is also suspended as the drive wheel 2 rolls. m, and the leading tool A moves along the suspension line m while being attracted to the suspension line m by the action of the magnets 10, 10 ', and both utility poles move from one utility pole to the other utility pole side. Moving forward along the suspension line m, and moving the tip of the cable traction cord R connected to the connecting member 1b at the rear end in the forward direction from the one electric pole to the other electric pole side. Can do it.

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

  18 is a light-emitting diode that uses the battery 7 as a power source. The light of the light-emitting diode 18 can visually recognize the position of the leading tool A from the ground, such as at dusk.

  The number and arrangement of the driven wheels 4 may be selected as appropriate. However, if the configuration is such that the pair of driven wheels 4 and 4 are arranged on the wheel frame 14 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 wheel of the wheel frame 14 is detached from the suspension line m, the other driven wheel 4 is attracted to the suspension line m. This is preferable because it can be maintained.

The front view which shows a use condition. Partially missing front view. The aa line expanded sectional view of FIG. The bb line expanded sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Leading tool main body 2 Drive wheel 4 Driven wheel 6 Drive motor 10, 10 'Magnet 12, 12' Engaging groove h Spiral cable hanger m Suspension line R Towing string for cable

Claims (1)

It is arranged inside a spiral cable hanger that is wound and supported by a suspension line built between utility poles, and further comprises a rod rod-shaped lead main body that connects the tip of a cable traction string, and an appropriate place for the main lead body In addition, a driving wheel and a driven wheel each provided with a magnet attracted to the suspension line and an engagement groove engaging with the suspension line are provided, respectively, and the bottom edge of the engagement groove is closer to the suspension line than the magnet. And a cable pulling string leading tool connected to a motor having a power source mounted with the driving wheel mounted on the leading tool main body as a driving source.

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