JP5797525B2 - Bird damage prevention device for electric wire - Google Patents

Description

  The present invention relates to a bird damage prevention device for electric wires which is attached to an electric wire installed between electric poles or an edge winding line around the electric pole to prevent bird damage.

  Conventionally, there exist some which are shown by patent document 1 or patent document 2 as this bird damage prevention tool for seed | species electric wires. These bird damage prevention tools for electric wires are formed of a synthetic resin material having electrical insulation such as polyethylene resin, and are connected to one side edge of a pair of half-divided cylindrical bodies by a hinge portion to form a cylinder. A body is formed. On the outer peripheral surface of the cylindrical main body, an elongated rod-like body with a pointed tip is provided in the center axis direction and the circumferential direction so as to prevent the birds from staying at a predetermined interval. In addition, in order to reduce the wind pressure and reduce the weight, and to discharge rainwater and dust that has entered inside, the cylindrical main body has a large number of through holes in the peripheral wall. As a result, in the bird damage prevention device for electric wires, the entire structure is composed of a plurality of vertical rods that are parallel to the central axis and arranged at equal intervals and an arched horizontal rod that is interposed between adjacent vertical rods. It will be formed in a lattice shape.

Japanese Patent Laid-Open No. 11-113144 (page 3-5, FIGS. 1 and 11) JP 2011-24469 A (No. 4-12, FIG. 4, FIG. 5, FIG. 7)

  By the way, if the polyethylene resin used for molding is hard, the pointed tip of each rod-shaped body becomes sharp, and the effect that it does not stay even if a bird approaches is increased, and it is excellent in shape retention. There is no loss of shape and it is easy to attach to the electric wire, and it is easy to attach to the electric wire at a high place. Normally, the attachment of these bird damage prevention tools for electric wires is performed while the electric wires are live, so an indirect live tool such as a conductive remote control rod that can be remotely operated is used for this attachment. . For example, when attaching a bird damage prevention device for electric wires to an edge winding wire arranged around the electric pole in order to connect electric wires drawn to both sides of the electric pole, Since the cylindrical main body is difficult to bend, there is a problem that it is difficult to attach the bird damage prevention tool for electric wires to the edge turning line when the edge turning line is greatly curved.

  On the other hand, when the polyethylene resin used for the molding is soft, it is easy to bend, so that it is easy to follow and attach to the curved edge winding line as described above. However, the tip of each rod-like body is also easily bent, and the effect that the original sharpness cannot appear and the bird does not stay is reduced. Also, when supporting the bird's damage prevention tool for electric wires horizontally while supporting the center, both ends in the central axis direction hang down due to the load, and there is a problem that it is difficult to perform work such as attaching with an indirect hot wire tool .

  Thus, in the bird damage prevention device for electric wires, the original bird damage prevention is performed on the premise that the cylindrical main body is formed in a lattice shape by crossing a plurality of vertical rods and a plurality of horizontal rods. There has been a demand for a configuration that can simultaneously satisfy the contradicting demands that the function can be maintained and that it can be easily attached to a curved edge winding line and can be quickly installed.

  Accordingly, the present invention has been made in view of the above-described demand, and provides a bird damage prevention device for electric wires that can maintain an original bird damage prevention function and can be easily attached to a curved edge winding wire and has excellent workability. It is intended to do.

In order to achieve such an object, the bird damage prevention device for electric wires of the present invention is formed of a synthetic resin material having electrical insulation, and has a cylindrical main body formed by overlapping a pair of half cylinders, Each half-cylinder is curved and passed outwardly between a pair of downspouts arranged on both side edges parallel to the central axis and between the downspouts, and is spaced along the pair of downspouts. An elongated rod-like body having a plurality of reeds arranged in a row and having a tip sharpened along a normal direction extending from a central axis to each of the outer peripheral surface of the vertical reed and the outer peripheral surface of the recumbent reed Planted .

At this time, the horizontal rods of the half cylinders in the cylindrical main body are provided at the same position and adjacent to each other in the same position among the horizontal ribs in the half cylinders. It is characterized in that a secondary downspout parallel to the downspout is passed through and connected to the center of the trough.

  In addition, protrusions facing each other are provided on both side edges parallel to the central axis of the pair of halved cylinders in the cylindrical main body, and engaging portions and engaged members that are detachably engaged with opposing surfaces of the both protruding pieces. It is preferable to provide each joint.

  Further, it is preferable that a fitting convex portion is provided at one end portion in the central axis direction of the cylindrical main body, and a fitting concave portion in which the fitting convex portion is detachably fitted is provided at the other end portion.

  The bird damage prevention device for electric wires according to the present invention is formed of a synthetic resin material having electrical insulation, and has a cylindrical main body formed by overlapping a pair of half-divided cylinders, A pair of downspouts arranged on both side edges parallel to the central axis line and curved outwardly between the downspouts are inserted in an arcuate shape, and are arranged in a row along the pair of downspouts with a certain interval. It is composed of a plurality of recumbent rods, and is formed by implanting elongated rod-shaped bodies having tips pointed along the normal direction extending from the central axis on the outer peripheral surface of the vertical reed and the outer peripheral surface of the recumbent reed, respectively. In this way, a plurality of recumbent ridges arranged in a row along a pair of reeds have no supported part other than a reed, and the space between each reed can be freely expanded or narrowed. Can be. Thereby, the cylindrical main body is easily bent in a plane including the central axis and the central position between the horizontal ribs. Therefore, it follows the curved electric wire such as an edge winding line, so that it can be bent and attached easily. In addition, since the cylindrical main body can be molded with the hardest synthetic resin material within an allowable range, the rod-shaped body can be firmly secured and the original bird damage prevention function can be sufficiently maintained.

In addition, the horizontal rods of the half cylinders in the cylindrical main body are provided at the same position, and adjacent horizontal ribs at the same position among the horizontal ribs in the half cylinders. center since such coupling passes pointing parallel sub longitudinal rods and Tate杆between a pair of Yoko杆linked by Fukutate杆is structurally strong, laterally not passed pointing of Fukutate杆Flexibility is maintained in the intercostal space. Therefore, it is possible to maintain a good shape retaining property as a bird damage prevention device for electric wires and at the same time secure an appropriate bendability. It has the effect of improving the harm prevention function.

  Furthermore, projecting pieces facing each other are provided on both side edges parallel to the central axis of the pair of half-divided cylindrical bodies in the cylindrical main body, and the engaging portions and the engaged parts are engaged with the opposing surfaces of both projecting pieces in a detachable manner. If each part is provided, the bird damage prevention tool for electric wires can be attached to the electric wires by remote control using an indirect hot wire tool while the electric wires remain in a live state, and the working time can be shortened.

  Furthermore, if a fitting convex part is provided at one end in the central axis direction of the cylindrical main body and a fitting concave part into which the fitting convex part is detachably fitted is provided at the other end, The bird damage prevention tool can be connected to a desired length, and can be attached to the required portion of the electric wire without excess or deficiency.

The perspective view of the bird damage prevention tool for electric wires which concerns on this invention. The disassembled perspective view of the bird damage prevention tool for the said electric wires. The front view of the bird damage prevention tool for the electric wires. (A) is a sectional view taken along line XX in FIG. 3, and (B) is a sectional view taken along line YY in FIG. The partial front sectional view which shows the connection state of the bird harm prevention tool for electric wires which concerns on this invention. The perspective view which shows the attachment state of the bird damage prevention tool for electric wires. The perspective view of the bird damage prevention tool for electric wires which concerns on other embodiment. The front view of the bird damage prevention tool for the electric wires. ZZ sectional drawing of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best embodiment of a bird damage prevention apparatus for electric wires according to the present invention will be described in detail with reference to the drawings. In addition, what is shown in FIG. 7 thru | or FIG. 9 corresponds to the form for implementing the invention which concerns on a claim, and the bird damage prevention tool for electric wires shown in FIG. 1 thru | or FIG.
FIG. 1 is a perspective view of a bird damage prevention apparatus for electric wires according to the present invention, FIG. 2 is an exploded perspective view of the bird damage prevention apparatus for electric wires, and FIG. 3 is a front view of the bird damage prevention apparatus for electric wires. The bird harm prevention tool A1 for electric wires according to the present invention is molded from a flame retardant polyethylene resin material, and contains carbon and is relatively hard and opaque. And this bird damage prevention tool A1 for electric wires has the cylindrical main body 1 formed by overlapping a pair of half cylinders 1a and 1b. The cylindrical main body 1 is formed in a straight tube shape having a predetermined length and a predetermined outer diameter and having both ends in the direction of the central axis O open.

  Each half cylinder 1a, 1b in the cylindrical main body 1 has a pair of vertical rods 2a, 2b parallel to the central axis O on both side edges along the central axis O of the cylindrical main body 1 as shown in FIG. Is placed. And, the horizontal rod 3 that is passed between the vertical rods 2a and 2b so as to be integrally formed and curved outwardly is lined up at equal intervals along the longitudinal direction of the vertical rods 2a and 2b. It is installed. Thereby, when the open side of both the half cylinders 1a and 1b is overlapped, the cylindrical main body 1 is formed, and the width between the horizontal rods 3 and 3 is the same in each of the half cylinders 1a and 1b. Moreover, in both the half cylinders 1a and 1b, the positions of the recumbent reeds 3 and recumbent reeds 3 coincide with each other.

  In the one half cylinder 1a, an elongated rod-like body 4 having a pointed tip is integrally formed on the outer peripheral surface of one vertical rod 2a and the outer peripheral surface of the horizontal rod 3 respectively. Moreover, in the said other half cylinder 1b, the front-end | tip of the vertical rod 2a which touches the other vertical rod 2b in the said one half cylinder 1a, and the outer peripheral surface of the horizontal bar 3 are respectively on a front-end | tip. A pointed elongated rod-like body 4 is integrally formed. In this case, the rod-like bodies 4 in the vertical rods 2a, 2a are all provided at the same position as the horizontal rod 3, and the intervals between the horizontal rods 3 are the same for both the half cylinders 1a, 1b. Thereby, the position of the horizontal rod 3 of both the half cylinders 1a and 1b in the cylindrical main body 1 becomes the same, and each rod-shaped body provided on the outer peripheral surface of the vertical rods 2a and 2a and the outer peripheral surface of the horizontal rod 3 4 is provided substantially along a normal extending from the central axis O of the cylindrical main body 1. Therefore, for example, on the surface orthogonal to the central axis O and including the horizontal reed 3, the four rod-shaped bodies 4 are arranged in a cross shape as shown in FIG.

  The cylindrical main body 1 is provided with an annular convex portion 5 having a diameter larger than that of the cylindrical main body 1 at one end portion in the central axis O direction, and the annular convex portion 5 is fitted at the other end portion in the central axis O direction. An annular recess 6 that fits freely is provided. The annular recess 6 is formed in a U-shaped cross section, and the annular projection 5 fitted in the U-shaped groove 7 is formed in the U-shaped groove unless the half cylinders 1a and 1b are opened as shown in FIG. It will not come out of 7. The annular convex portion 5 and the annular concave portion 6 are respectively cut in half in accordance with the respective half cylinders 1a and 1b.

  In the vertical cylinders 2a, 2b and the annular recess 6 at the other end of each half cylinder 1a, 1b, the half cylinders 1a, 1b overlap at substantially equal intervals along the central axis O. Projection pieces 8a and 8b are provided so as to face each other when formed. Then, an engaging piece 9 as an engaging portion protrudes from one of the opposing surfaces of both the protruding pieces 8a and 8b, and the engaged piece 9 is detachably engaged with the other. An engagement hole 10 is provided as a joint. In this case, as shown in FIG. 4 (b), the projecting piece 8a provided with the engagement piece 9 is provided on one vertical rod 2a in one half cylinder 1a and in the other half cylinder 1b. On the contrary, it is provided on the other vertical rod 2b. Therefore, in both the half cylinders 1a and 1b, the positions of the protruding pieces 8a provided with the engaging pieces 9 are reversed.

  In this bird damage prevention tool A1, there is nothing in the space 11 between the adjacent horizontal ribs 3 and 3. Therefore, even if the cylindrical main body 1 is formed of a relatively hard synthetic resin material, when the cylindrical main body 1 is formed by stacking the two half-divided cylindrical bodies 1a and 1b, the center axis O and the center of each horizontal bar 3 In the plane including the position, the cylindrical main body 1 is easily bent.

  The wire damage prevention tool A1 for electric wires according to the present invention has the above-described configuration. Next, a method for attaching the bird damage prevention tool A1 for electric wires to the electric wire will be described. At this time, the electric wire remains in a live line state. In FIG. 6, the end of the electric wire b installed on the utility pole a is fixed to the arm d through the insulator c. And the edge turning line e branched from the electric wire b is connected in the curved state. The edge turning line e is curved in this way because when the electric wire is beaten in a strong wind or when the electric wire shakes during an earthquake, the wire b becomes long by providing a margin for the length. This is to prevent interruption.

  Therefore, first, an operator gets into a bucket of an aerial work vehicle (not shown) and raises the bucket to a working position. The electric wire bird harm prevention tool A1 disengages the engagement piece 9 and the engagement hole 10 in each of the projecting pieces 8a and 8b provided in one of the overlapping portions of the halved cylinders 1a and 1b. The overlapping part of the opposite vertical rods 2a, 2b is opened. Such a bird damage prevention tool A1 for electric wires is sandwiched between the tips of an indirect hot wire tool (for example, a non-conductive remote control rod) (not shown) and is put on the edge turning line e through an overlapping portion. In this way, the projecting pieces 8a and 8b are used for clamping with the indirect hot wire tool. At this time, even if the edge turning line e is curved, the wire bird protection tool A1 is a plane in which the cylindrical main body 1 includes the central axis O and intersects the center of each horizontal bar 3. Since it can be bent easily, it will follow the edge turning line e and bend easily, and it is easy to attach the bird damage prevention tool A1 for electric wires.

  In addition, after the edge wire e is covered with the bird damage prevention tool A1 for the electric wire, the engagement piece 9 is engaged with the engagement hole 10 with the pair of projecting pieces 8a and 8b facing each other by the indirect hot wire tool. The installation work of the bird damage prevention tool A1 for electric wires is completed. Further, when the attachment portion at the edge winding line e is long, the fitting convex portion 5 at one end in the direction of the central axis O of the bird damage prevention device A1 for electric wires is fitted to one end of the bird injury prevention device A1 for other electric wires. Two or three bird damage prevention tools A1 for electric wires can be connected by fitting in the recess 6. Thus, the installation work of the bird damage prevention tool A1 for electric wires is completed. Thereafter, the bucket of the aerial work vehicle is lowered. Thereby, as shown in FIG. 6, the bird damage prevention tool A1 for electric wires is attached to the edge winding line e.

  What is shown in FIGS. 7 to 9 relates to a bird damage prevention device for electric wires according to another embodiment. In addition, since the bird damage prevention tool A2 for electric wires which concerns on this embodiment is the structure substantially the same as the bird damage prevention tool A1 for electric wires which concerns on this invention, detailed description is abbreviate | omitted by attaching | subjecting the same number. The bird damage prevention tool A2 for electric wires according to another embodiment is at the same position in the spaces 11a to 11m between the horizontal rods 3 and 3 in the two half cylinders 20a and 20b constituting the cylindrical main body 20. The sub-longitudinal rods 21 parallel to the vertical rods 2a and 2b are connected between the adjacent horizontal rods 3 and 3 except at least one place.

  Specifically, in both halved cylinders 20a and 20b, the first to third spaces 11a, 11b, 11c, first from the same position, that is, from one end side in the direction of the central axis O (the side where the annular convex portion is provided). Between the adjacent horizontal ribs 3 and 3 in the 5th space 11e, the seventh to ninth spaces 11g, 11h and 11i, the eleventh space 11k and the thirteenth space 11m, it is located at the center and is parallel to the vertical bars 2a and 2b. The vertical gutters 21 are connected so as to be passed. In other words, there is a sub-longitudinal rod 21 between the adjacent horizontal ribs 3 and 3 of the fourth space 11d, the sixth space 11f, the tenth space 11j and the twelfth space 11l from one end side along the central axis O. do not do. Therefore, in the fourth, sixth, tenth, and twelfth spaces 11d, 11f, 11j, and 11l, the cylindrical main body 20 is easily bent in a plane that includes the central axis O and the center position of the reed 3.

  Therefore, even if the edge turning line e is curved, the wire damage prevention tool A2 is easily bent as in the present embodiment, and is easily attached to the edge turning line e. In this way, when the adjacent horizontal fins 3 and 3 are connected at a predetermined position by the auxiliary vertical rod 21, the shape retention of the bird damage prevention device A2 for electric wires is excellent and at the same time the auxiliary vertical rod 21 does not exist. Since the space 11 between the adjacent horizontal ribs 3 and 3 can be freely opened or narrowed, moderate flexibility can be ensured and the original bird damage prevention function can be maintained, and the curved edge winding line can be maintained. It can be easily attached to e.

  There is a difference in the presence or absence of the sub-vertical rod 21 between the bird damage prevention tool A1 for electric wires according to the present invention and the bird damage prevention tool A2 for electric wires according to other embodiments, and both achieve the object of the present invention. I can. However, like the bird damage prevention tool A2 for electric wires according to other embodiments, the auxiliary vertical rod 21 is provided more firmly, and it is easy to grasp and work with an indirect hot wire tool.

  In the bird damage prevention device A2 for electric wires according to another embodiment, the space 11 in which the auxiliary downspout 21 does not exist is not limited to the position shown in this embodiment, and the bird damage prevention for electric wires It is set appropriately in consideration of the hardness of the tool A2. Therefore, it is possible to change to another space 11 within the allowable range. Further, the rod-shaped body 4 is arranged on the outer peripheral surface of the cylindrical main body 1 so as to be cross-shaped in a plane orthogonal to the central axis O of the cylindrical main body 1, but the tip of each rod-shaped body 4 is connected to the other. The outline of the line may be a regular pentagon, a regular hexagon, a regular heptagon, a regular octagon, or other shapes. Furthermore, the bird damage prevention devices A1 and A2 for electric wires are used as a set of two, but not limited thereto, three, four, five, six, or more are used as a set. Anyway. In addition, of course, the bird damage prevention tool A1 for electric wires according to the present invention and the bird damage prevention tool A2 for electric wires according to other embodiments can be used by being attached to a linear electric wire.

DESCRIPTION OF SYMBOLS 1 Tubular main body 1a Half cylinder 1b Half cylinder 2a Vertical rod 2b Vertical rod 3 Horizontal rod 4 Bar-shaped body 5 Annular convex part 6 Annular concave part 8a Protruding piece 8b Protruding piece 9 Engaging part (engaging piece)
10 Part to be engaged (engagement hole)
DESCRIPTION OF SYMBOLS 11 Space 20 Cylindrical main body 20a Half cylinder 20b Half cylinder 21 Auxiliary vertical rod A1 Bird damage prevention tool A2 Bird damage prevention tool for electric wire

Claims (3)

Molded by a synthetic resin material having electrical insulation, and having a cylindrical body formed by overlapping a pair of half-cylinders, each half-cylinder is arranged on both side edges parallel to the central axis. A pair of downspouts and a plurality of recumbent ridges curved outwardly between the downspouts and lined up and separated by a certain distance along the pair of downspouts, Ri Na and implanted the outer peripheral surface and the lateral rod rod-like body elongated sharpened tip along a normal direction extending from the respective central axis to the outer peripheral surface of,
The horizontal rods of both halved cylinders in the cylindrical body are provided at the same position as each other, and between the adjacent horizontal ribs leaving at least one place at the same position among the respective horizontal ribs in both halved cylinders A bird damage prevention device for electric wires, characterized in that a secondary downspout parallel to the downspout is passed and connected in the center . An engaging portion and an engaged portion that are provided with projecting pieces facing each other on both side edges parallel to the central axis of the pair of halved cylindrical bodies in the cylindrical main body and detachably engage with opposing surfaces of both projecting pieces. bird damage prevention member for electric wire according to claim 1, wherein the respectively provided. The bird for electric wires according to claim 2 , wherein a fitting convex portion is provided at one end portion in the central axis direction of the cylindrical main body and a fitting concave portion in which the fitting convex portion is detachably fitted is provided at the other end portion. Harm prevention tool.

Images