JP2019103226A - Band winding device and band winding method - Google Patents

Abstract

To provide a device and method for preventing electric wire from hanging down by simple work.SOLUTION: A band winding device 100 comprises a truck part 10, a movable frame 30 and a reel part 50. The truck part engages with an electric wire 105 and capable of self-traveling, and the reel part includes a first reel 51 and a second reel arranged along a surface orthogonal to the electric wire while the truck part and the electric wire are engaged, each capable of rotating along a surface orthogonal to the electric wire. A first band 110a and a second band 110b are wound round the first reel and the second reel, respectively, and the movable frame includes a base part 31 and a first frame part 33a and a second frame part 33b. The truck part and the electric wire are arranged intersecting each other at right angles, and are capable of rotating in linkage with the rotation of the first and the second reels. The first frame part allows the first band to pass through, and the second frame part allows the second band to pass through.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a band winding device and a band winding method for preventing the sagging of a wire.

  Copper wires may break due to stress corrosion or the like. A broken wire that hangs down may cause an electric shock accident or the like by falling to the ground. Therefore, conventionally, there has been a method of using a rope to prevent drooping of the electric wire (see, for example, Patent Document 1). In this technique, between a plurality of electric wires arranged in parallel, adjacent electric wires and wires are connected by ropes. The ropes are provided at a plurality of places at predetermined intervals in the middle of the electric wire along the extending direction. As a result, even if a break occurs, the broken wire can be prevented from hanging down to the ground because it is supported by the wire adjacent to the rope.

JP 2001-186646 A

  In the above-described method for preventing the sagging of the electric wire, in order to shorten the drooping length of the broken electric wire, it is necessary to attach a large number of ropes to the electric wire at short intervals between the utility poles. However, attaching a large number of ropes while moving an aerial work vehicle is time-consuming, and there is a problem that the working time increases.

  In addition, there is a problem that the rope is broken in a short time due to the tracking caused by the line voltage applied to the rope. In order to prevent this, it is necessary to use an expensive rope coated with a silicone resin excellent in tracking resistance. For this reason, the above-described method for preventing drooping of the electric wire, which requires a large number of ropes to be attached, is disadvantageous in cost.

  An object of the present invention is to provide a band winding device for efficiently preventing the sag of a wire by a simple operation and a band winding method using the same.

  In order to achieve the above-mentioned object, the band winding device of the present invention comprises a carriage portion, a movable frame, and a reel portion connected to the movable frame. The carriage portion is engageable with the electric wire and is self-propelled along the electric wire. The reel unit includes a first reel and a second reel disposed along a plane orthogonal to the electric wire in a state where the carriage unit is engaged with the electric wire. The first reel and the second reel are respectively rotatable along a plane orthogonal to the electric wire. A first band is wound around the first reel along the rotational direction of the first reel. A second band is wound around the second reel along the rotational direction of the second reel. The movable frame includes a base and a first frame and a second frame. The base portion is disposed orthogonal to the electric wire in a state where the bogie portion engages with the electric wire, and interlocked with the rotation of the first reel and the second reel, the electric wire serves as a rotation axis, and It can rotate in the same direction as the one reel and the second reel. The first frame portion is a frame-shaped body through which the first band can be passed, and the second frame portion is a frame-shaped body through which the second band can be passed.

  The band winding method of the present invention is a method of winding a band around an electric wire using the above-described band winding device, wherein the carriage portion is used as the electric wire at one end of the electric wire installed between two utility poles. Engaging process, one end of the outer periphery of the first band wound around the first reel is passed through the first frame portion, and one end of the outer periphery of the second band wound around the second reel is passed through the second frame portion , And fixing one end of the first band and one end of the second band to the electric wire, and self-running the bogie portion, the band winding device including the bogie portion is self-propelled toward the other end of the electric wire And the process of

  According to the band winding device of the present invention and the band winding method using the same, the band can be efficiently wound around the electric wire with a simple operation.

It is a schematic diagram for explaining a drooping prevention method by an embodiment of this invention. 1 is a schematic view showing a band winding device according to an embodiment of the present invention. (A) and (B) are schematic which shows the band winding apparatus by embodiment of this invention. (A) and (B) is schematic which shows a movable frame and a gear part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the arrangement relationship of each component is only schematically shown to the extent that the present invention can be understood. Also, although preferred embodiments of the present invention will be described below, numerical conditions and the like are merely preferred embodiments. Therefore, the present invention is not limited to the following embodiments, and many changes or modifications that can achieve the effects of the present invention can be made without departing from the scope of the configuration of the present invention.

(How to prevent the cable from hanging down)
With reference to FIG. 1, a method of preventing the drooping of the electric wire according to the embodiment of the present invention (hereinafter, also simply referred to as a drooping preventing method) will be described. FIG. 1 is a schematic view showing a method of preventing drooping.

  In the example of FIG. 1, three electric wires 105 are installed across the utility poles 101 and 103.

  In the sagging prevention method according to this embodiment, the band 110 is wound around the electric wire 105. Here, the two bands 110 (the first band 110a and the second band 110b) are respectively wound around the respective electric wires 105.

  The first band 110 a and the second band 110 b are wound around the wire 105 in a spiral along the extending direction of the wire 105 and around the wire 105 as an axis. In addition, the first band 110 a and the second band 110 b are wound around the electric wire 105 over the entire range between the utility poles 101 and 103. Each end of the first band 110a and the second band 110b is fixed to the electric wire 105 using a connecting member 115 such as a C-shaped connector, for example.

  The first band 110a and the second band 110b are made of, for example, an insulating material such as polyester.

  As described above, in the method for preventing sagging according to this embodiment, even when the wire 105 is broken, the wire 105 is supported by the wound first band 110a and the second band 110b, so the wire 105 is hung down. Can be prevented.

  For this reason, as compared with the conventional method of attaching a large number of ropes between the wires, it is possible to prevent the hanging of the wires efficiently at low cost. Then, by using a band winding device described later, the band 110 can be wound around the electric wire 105 across the utility poles 101 and 103 by a simple operation.

(Band winding device)
A band winding apparatus according to an embodiment of the present invention will be described with reference to FIGS. 2 and 3. 2 and 3 are schematic views showing a band winding device. FIG. 2 shows the band winding device in the state engaged with the electric wire (i.e., the state in use). 3 (A) is a schematic view of the band winding device shown in FIG. 2 as viewed from the left side of the paper (from the side of the carriage portion described later), and FIG. 3 (B) is shown in FIG. It is the schematic at the time of seeing a band winding apparatus from the right side of a paper surface (from the reel part side mentioned later).

  The band winding device 100 is configured to include a carriage portion 10, a mounting base 20, a movable frame 30, a gear portion 40, and a reel portion 50 provided in this order. In the following description, the carriage 10 side of the band winding device 100 is referred to as the front, and the reel 50 side is referred to as the rear.

  The carriage 10 includes an engagement portion 11, a roller 12, a weight portion 13 and a motor housing portion 14. Here, the carriage portion 10 includes two engagement portions 11a and 11b and two rollers 12a and 12b. The engaging portions 11a and 11b are provided on the front and the rear of the carriage 10, and the weight portion 13 connects the engaging portions 11a and 11b. Then, one roller 12 is attached to each of the engagement portions 11a and 11b (here, the roller 12a is attached to the engagement portion 11a and the roller 12b is attached to the engagement portion 11b).

  The engagement portion 11 is formed, for example, in a hook shape and can be hung on the electric wire 105.

  The roller 12 is rotatable along the extending direction of the wire 105. The surface covering the outer periphery of the roller 12 is arranged to be in contact with the electric wire 105 in a state where the engagement portion 11 is hung on the electric wire 105.

  The motor housing portion 14 houses a motor therein. The motor is connected to the roller 12 by an optional transmission mechanism (not shown). Then, the roller 12 is rotated by driving the motor. As a result, the carriage unit 10 self-propelled along the extending direction of the wire 105 in a state of being engaged with the wire 105. A battery for driving the motor can be accommodated, for example, inside the weight portion 13.

  The mounting base 20 is connected to the carriage 10. The mounting base 20 is fixedly connected to, for example, the engagement portion 11 b on the rear side of the carriage 10. Further, the mounting base 20 and the gear portion 40 sandwich the movable frame 30 in a state in which a base 31 described later of the movable frame 30 can rotate along a plane orthogonal to the electric wire 105. Further, the mounting base 20 is formed with a slit 21 which cuts inward from the outer periphery of the mounting base 20. The electric wire 105 can be passed through the slit 21 in a state in which the engagement portion 11 is hung on the electric wire 105.

  The movable frame 30 includes, for example, a base 31, a pair of first frame portions 33a and a second frame portion 33b, and a pair of first shaft portions 34a and a second shaft portion 34b. Further, the gear portion 40 is fixed to and connected to the mounting base 20 through a hole 35 described later of the base 31 of the movable frame 30.

  The movable frame 30 and the gear portion 40 will be described with reference to FIGS. 2 and 3 as well as FIG. 4. FIGS. 4A and 4B are schematic views showing the movable frame 30 and the gear portion 40. FIG. FIG. 4A is a schematic view of the movable frame 30 and the gear portion 40 as viewed from the carriage 10 side, and FIG. 4B is a side view of the movable frame 30 and the gear portion 40 on the reel portion 50 side. It is the schematic at the time of seeing from.

  The base 31 of the movable frame 30 is configured as a flat body having a pair of opposing main surfaces (surface 31a and back surface 31b). The base portion 31 is provided between the mounting base 20 and the gear portion 40.

  The base 31 is disposed such that the front surface 31 a and the back surface 31 b are orthogonal to the electric wire 105 in a state in which the engagement portion 11 is hung on the electric wire 105. Then, the base 31 can rotate along a plane orthogonal to the electric wire 105 with the electric wire 105 as an axis.

  Further, in the base portion 31, holes 35 penetrating between the front surface 31a and the back surface 31b are bored. Furthermore, the base 31 is formed with a slit 35 a extending from the air hole 35 to the outer periphery of the base 31.

  The gear portion 40 is a flat gear in parallel with the base 31. The gear portion 40 is fixed to the mounting base 20 through the holes 35 of the base 31 as described above. On the other hand, the gear portion 40 is not connected to the movable frame 30. Therefore, the gear portion 40 does not rotate even when the base 31 rotates.

  Further, in the gear portion 40, a hole 36 through which the electric wire 105 passes is bored. The holes 36 of the gear portion 40 are formed so as to overlap with the holes 35 of the base 31.

  Furthermore, the gear portion 40 is formed with a slit 36 a extending from the hole 36 to the outer periphery of the gear portion 40. The slits 36 a of the gear portion 40 are formed so as to overlap with the slits 21 of the mounting base 20. A part of the gear portion 40 is an opening and closing portion 37. By opening the opening and closing part 37, the slit 36a becomes a gap which leads from the outer periphery of the gear part 40 to the hole 36. In addition, in FIG. 4, the state which the opening-and-closing part 37 closed is shown.

  The first frame portion 33 a and the second frame portion 33 b of the movable frame 30 are provided on the back surface 31 b side of the base 31 so as to project rearward from the back surface 31 b (that is, in the direction of the reel unit 50). Here, the first frame portion 33a and the second frame portion 33b are disposed at positions facing each other with the gear portion 40 interposed therebetween. Moreover, the 1st frame part 33a and the 2nd frame part 33b are frame-like bodies. The band 110 can be passed through the hollow 38 defined in the first frame portion 33a and the second frame portion 33b.

  The first shaft portion 34 a and the second shaft portion 34 b of the movable frame 30 are provided on the back surface 31 b side of the base 31 so as to project rearward from the back surface 31 b (that is, in the direction of the reel unit 50). The first shaft portion 34 a and the second shaft portion 34 b are disposed at positions facing each other with the gear portion 40 interposed therebetween. Further, the first shaft portion 34a and the second shaft are made such that a line segment connecting between the first shaft portion 34a and the second shaft portion 34b intersects with a line segment connecting between the first frame portion 33a and the second frame portion 33b. The part 34b is arrange | positioned. Therefore, the first frame 33a and the second frame 33b are disposed on the opposite side with respect to the line segment connecting the first shaft 34a and the second shaft 34b.

  The positions of the slits 21 of the mounting base 20, the holes 35 of the base 31 of the movable frame 30, and the holes 36 of the gear portion 40 are arranged to overlap. Therefore, the wire 105 can be passed through the slit 21 of the mounting base 20, the air hole 35 of the base 31, and the air hole 36 of the gear portion 40 in a state where the engagement portion 11 is hung on the wire 105.

  In addition, by rotating the base 31, the position of the slit 35a of the base 31 can be arranged to overlap with the position of the slit 21 of the mounting base 20 and the slit 36a of the gear portion 40. When hooking engagement portion 11 to electric wire 105, open / close portion 37 of gear portion 40 and open electric wire 105 from base 31 from slit 21 of mounting base 20, slit 35a of base 31 and slit 36a of gear portion 40. The holes 35 and the holes 36 of the gear portion 40 can be passed. Further, in the state where the electric wire 105 is passed through the slit 21, the air hole 35 and the air hole 36, the slit 36 a of the gear portion 40 can be closed by closing the opening / closing part 37.

  The reel unit 50 includes a first reel 51 and a second reel 52 provided along the plane orthogonal to the electric wire 105, respectively.

  By the first shaft portion 34a of the movable frame 30 penetrating the center of the first reel 51 and the second shaft portion 34b of the movable frame 30 penetrating the center of the second reel 52, the reel portion 50 and the movable portion The frame 30 is connected. The first reel 51 can rotate around the first shaft portion 34 a as a rotation axis, and the second reel 52 can rotate around the second shaft portion 34 b as a rotation axis along a plane orthogonal to the electric wire 105.

  Further, a sub gear 53 is fixed to the first reel 51 (see FIG. 3A). Therefore, as the first reel 51 rotates, the sub gear 53 rotates. The sub gear 53 is a flat gear. The sub gear 53 is engaged with the gear unit 40.

  The first reel 51 and the second reel 52 are winding shafts of the band 110. Therefore, the band 110 is wound around the first reel 51 and the second reel 52 along the rotational direction of the first reel 51 and the second reel 52, respectively. Here, the band 110 wound around the first reel 51 is referred to as a first band 110 a, and the band 110 wound around the second reel 52 is referred to as a second band 110 b.

(Band winding method)
A band winding method using the above-described band winding apparatus 100 will be described with reference to FIG.

  First, one end 110 aa of the outer peripheral side of the first band 110 a wound around the first reel 51 is passed through the hollow 38 of the first frame 33 a of the movable frame 30. Further, the one end portion 110 ba of the outer peripheral side of the second band 110 b wound around the second reel 52 is passed through the hollow 38 of the second frame portion 33 b of the movable frame 30. Further, the position of the slit 35 a of the base 31 of the movable frame 30 is disposed so as to overlap the position of the slit 21 of the mounting base 20 and the slit 36 a of the gear portion 40, and the opening / closing portion 37 of the gear portion 40 is opened. The engagement portion 11 of the carriage 10 is hooked on the wire 105 at an end portion on one of the power pole sides of the wire 105 installed between the utility poles. Then, the wire 105 is passed through the slit 21 of the mounting base 20, the hole 35 of the base 31 of the movable frame 30, and the hole 36 of the gear portion 40 in a state where the engagement portion 11 is hung on the wire 105. Thereafter, the opening and closing portion 37 of the gear portion 40 is closed.

  And one end 110aa of the first band 110a passed through the hollow 38 of the first frame 33a and one end 110ba of the second band 110b passed through the hollow 38 of the second frame 33b Secure at the end of the

  Next, the motor accommodated in the motor accommodating portion 14 of the carriage 10 is driven. As a result, the band winding device 100 including the carriage portion 10 travels toward the other power pole side end of the wire 105.

  When the band winding apparatus 100 is self-propelled, the first band 110a and the second band 110b are pulled by fixing the one ends 110aa and 110ba to the electric wire 105. Then, the tension of the pulled first band 110a and the second band 110b causes the first reel 51 to rotate around the first shaft portion 34a and the second reel 52 around the second shaft portion 34b. .

  As the first reel 51 rotates, the sub gear 53 rotates. As described above, the sub gear 53 engages with the gear portion 40 fixed to the mounting base 20. For this reason, the sub gear 53 (and the first reel 51 including the same) rotates around the outer periphery of the gear portion 40 while rotating about the first shaft portion 34 a. The rotation of the first reel 51 causes the base 31 of the movable frame 30 to rotate. The base 31 of the movable frame 30 rotates in the same direction as the first reel 51 and the second reel 52. Furthermore, with the rotation of the base portion 31, the second reel 52 rotates along the outer periphery of the gear portion 40.

  When the first reel 51 and the second reel 52 and the base 31 of the movable frame 30 rotate, the first band 110a and the second band 110b are wound around the first frame 33a and the second frame 33b of the movable frame 30. It is taken out and fed from the first reel 51 and the second reel 52. Then, since the band winding apparatus 100 is self-propelled along the electric wire 105, the first band 110a and the second band 110b are drawn out from the first reel 51 and the second reel 52 in a spiral shape with the electric wire 105 as an axis. . As a result, the first band 110 a and the second band 110 b can be wound around the electric wire 105.

  Then, after the band winding device 100 reaches the other power pole side end of the electric wire 105, the driving of the motor of the carriage 10 is stopped to stop the free running of the band winding device 100. As a result, the first band 110a and the second band 110b can be wound around the wire 105 over the entire range between the utility poles.

  Thereafter, the first band 110a and the second band 110b are fixed to the other power pole-side end of the wire 105, and the surplus first band 110a and second band 110b are cut.

  As described above, in the band winding method using the band winding apparatus 100, the worker may work in the vicinity of the power pole, and the first band 110a and the second band 110b can be wound around the electric wire 105 by a simple operation.

10: bogie 11: engagement 12: roller 13: weight 14: motor housing 20: mounting base 30: movable frame 31: base 33a: first frame 33b: second frame 34a: first shaft 34b: Second shaft portion 40: gear portion 50: reel portion 51: first reel 52: second reel 100: band winding device 110: band

Claims (3)

A carriage unit, a movable frame, and a reel unit connected to the movable frame;
The carriage portion can engage with the wire and can travel along the wire.
The reel unit includes a first reel and a second reel disposed along a plane orthogonal to the electric wire in a state in which the carriage unit is engaged with the electric wire,
The first reel and the second reel are each rotatable along a plane orthogonal to the electric wire,
A first band is wound around the first reel along the rotational direction of the first reel, and a second band is wound around the second reel along the rotational direction of the second reel,
The movable frame includes a base and a first frame and a second frame,
The base portion is disposed orthogonal to the electric wire in a state in which the carriage portion is engaged with the electric wire, and interlocked with the rotation of the first reel and the second reel, the electric wire serving as the rotation shaft is the electric wire Rotatable in the same direction as the first reel and the second reel along a plane orthogonal to
The first frame portion is a frame-shaped body through which the first band can be passed, and the second frame portion is a frame-shaped body through which the second band can be passed. apparatus. The first frame portion and the second frame portion are disposed on opposite sides of a line segment connecting the rotation axis of the first reel and the rotation axis of the second reel. The band winding device according to claim 1. A method of winding a band around the electric wire using the band winding device according to claim 1 or 2,
Engaging the carriage with the wire at one end of the wire installed between the two utility poles;
One end on the outer circumferential side of the first band wound around the first reel is passed through the first frame portion, and one end on the outer circumferential side of the second band wound around the second reel is referred to the second frame portion Securing one end of the first band and one end of the second band to the electric wire;
And b. Self-running the band winding device including the carriage portion toward the other end of the electric wire by causing the carriage portion to self-run.

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