JP2008228647A - Bird damage preventing device for utility pole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bird damage preventing device furnished firstly with a bar for ensuring birds not to rest on a crossarm for a utility pole or not to nest, and, secondarily, with the bar mounted on a support pole so as to be hardly broken, and also ensuring the support pole to be hardly broken. <P>SOLUTION: The bird damage preventing device for a utility pole includes the support pole 10 mounted vertically on a crossarm 1 for the utility pole and the flexible bar 20 with electrical insulation mounted horizontally on the support pole 10, wherein the bar 20 is mounted on the support pole 10 via a springy member 30 so as to turn in the direction identical with that of the crossarm 1, and the support pole 10 is divided into a basal end-side portion 11 maintaining its vertical attitude and a swingable tip-side portion 12, and the connective part between the basal end-side portion 11 and the tip-side portion 12 is jointed with a joint 13 functioning to restore the tip-side portion 12 put to tilt posture to vertical attitude. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bird damage prevention device for a power pole that prevents a bird such as a crow from flying or nesting on a metal arm fixed to the upper portion of the power pole. The present invention relates to a bird injury prevention tool for a power pole provided with a column attached to a posture and a bar attached to the column in a horizontal posture.

  Birds such as crows may stop on the armor fixed to the top of the utility pole or the electric wire laid on the armor. If a bird stopped on a metal arm or electric wire is excreted, the excreted material may adhere to the insulator or electric wire fixed to the metal arm, causing the electric wire to deteriorate and even dropping to the ground. In addition, when nested on a brace by a conductor such as a wire hanger, the conductor and the electric wire are short-circuited, causing an accident such as a power failure.

  For this reason, various bird preventers for electric poles have been proposed in which birds cannot stop or nest on a brace or electric wire. For example, Patent Document 1 discloses a fixture that is detachably fixed to a power transmission line support (arm) or a power transmission line (electric wire), and a synthetic resin support member that is erected in a vertical posture on the fixture. A bird injury prevention device is disclosed that includes a (post) and an insulating thin wire (bar) made of a synthetic resin that is attached to the tip or intermediate portion of the support member (post) along the length direction of the power transmission line. ing.

  According to this bird damage prevention apparatus, the insulating thin wire is arranged in parallel with the power transmission line along the direction of the power transmission line, so that the bird flying to stop on the power transmission line is located above the power transmission line. The insulating thin wire cannot be stopped on the power transmission line due to the obstruction, and even if the bird tries to stop on the insulating thin wire, the insulating thin wire cannot be stopped by swinging. Therefore, this bird damage prevention apparatus can prevent bird damage such as bird excrement damage.

Japanese Patent Laid-Open No. 10-14474

  In the bird harm prevention apparatus disclosed in Patent Document 1, in order to prevent birds from stopping on the power transmission line, and in order not to damage the landscape of the city, the insulating thin wire is the length direction of the power transmission line. It is attached to the support member so as to follow. Therefore, this bird harm prevention apparatus cannot prevent the bird from stopping at the power transmission line support part because the direction of the insulating thin wire is orthogonal to the power transmission line support part, and may be nested in the power transmission line support part.

  Further, in the bird harm prevention apparatus disclosed in Patent Document 1, the insulating thin wire is swingably attached to the support member so that the bird cannot stop on the insulating thin wire. However, when the insulating thin wire is swung, a stress is generated in the attaching portion between the insulating thin wire and the support member, and the attaching portion is easily broken. Furthermore, since the support member is erected on the fixture, the support member may oscillate when the insulating thin wire oscillates, and the support member may break at the portion where the fixture is erected.

  Therefore, the present invention mainly includes a bar for preventing the bird from stopping on the pole for the utility pole or nesting, and, as a secondary matter, the column so that the bar is not easily broken. It is an object of the present invention to provide a bird damage prevention tool that is attached to a stool and that is less likely to break the support.

  A bird damage prevention device for an electric pole according to the present invention is provided with a post attached to the arm for the electric pole in a vertical posture and a flexible insulating bar attached to the post in a horizontal posture. It is characterized by being.

  According to the bird damage prevention device for electric poles, the pole is attached to the arm for the electric pole in a vertical posture, and the insulating bar is attached to the pole in a horizontal posture, so that the bird is attached to the arm for the electric pole. Even if you get closer, the bird can't stop on the pole for the utility pole because the bar gets in the way. Furthermore, because the bar is flexible, if the bird tries to stop at the bar, the bar will bend and the bird will not be able to stop at the bar. In addition, even if the weight (load) of the bird trying to stop on the bar is applied to the bar, the bar is bent, so that no stress is generated in the portion where the bar is attached to the column. There is no breakage.

  In the bird pole prevention tool for electric poles according to the present invention, it is preferable that the bar is attached to the support so as to be in the same direction as the arm for the electric pole.

  According to the bird damage prevention device for electric poles, the bird cannot be stopped on the electric pole brace because the bar is attached to the pole so as to be in the same direction as the electric pole brace.

  Moreover, in the bird damage prevention apparatus for electric poles according to the present invention, it is preferable that the bar is attached to the support column by an elastic member.

  According to the bird damage prevention device for a utility pole, the portion where the bar is attached to the support can be prevented from being broken because the bar is attached to the support by the elastic member. That is, when the bird tries to stop on the bar, the bar bends due to the weight (load) of the bird. At this time, the load applied to the attachment portion between the bar and the column is absorbed by the elastic member, and the bar and column It is possible to prevent the mounting portion from being broken.

  Moreover, in the bird damage prevention device for an electric pole according to the present invention, the support column is divided into a proximal end portion and a swingable distal end portion that maintain a vertical posture, and the proximal end portion and the distal end portion It is preferable that a joint for returning the tip side portion in the tilted posture to the vertical posture is connected to the connecting portion.

  According to this bird damage prevention device for electric poles, the support post is divided into a base end portion and a tip end portion, and a joint for returning the tip end portion in a tilted posture to a vertical posture is connected to the connecting portion. As a result, when the bird tries to stop on the bar and the weight (load) is applied to the bar, the tip side portion is tilted, so that no moment is generated in the column and the column can be prevented from breaking. . When the load is no longer applied to the bar, the tip side part tilted by the joint returns to the vertical position, the bar returns to the original horizontal position, and the bird stops on the bar or utility pole arm Can not be.

  According to the present invention, a vertical pole for attaching a horizontal insulating bar is attached to a power pole armrest, so that a bird cannot stop on the power pole armrest, and the power pole armrest You can avoid nesting. And since the bar is flexible, it is difficult for birds to stop on the bar, and even if a load is applied to the bar that tries to stop, the bar will bend and break. It is difficult and can have durability.

  One embodiment of a bird damage prevention device for a utility pole (hereinafter referred to as “bird damage prevention device”) according to the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, this bird harm prevention tool is attached to a power pole arm bracket (hereinafter referred to as “arm metal”) 1 in a vertical posture, and to this pillar 10 in a horizontal posture. Two insulating bars 20 and 20 having flexibility are provided.

  The bar 20 is attached to the column 10 so as to be in the same direction as the arm metal 1 and not to contact with a lever (not shown) fixed to the arm metal 1. Therefore, the two bars 20, 20 are arranged in a straight line parallel to the brace 1. Further, FIG. 1 shows the bar 20 bent by its own weight. However, depending on the material and length of the bar 20, the bar 20 may not be bent as shown, or may be arranged in parallel with the brace 1. is there. In any case, the bar 20 is formed of an insulating material such as acrylic so as not to get an electric shock, and bends when a weight (load) is applied to stop the bird.

  The bar 20 is attached to the support column 10 by an elastic member 30. The elastic member 30 is formed by a cylindrical compression coil spring as shown in FIG. 2, or a leaf spring (not shown), a shaft-shaped or a cylindrical rubber. However, the cylindrical compression coil spring has a small diameter, but bends smoothly when a radial external force is applied. When this external force is no longer applied, the cylindrical compression coil spring smoothly returns to its original linear shape. It can be suitably used as the member 30. In addition, since the cylindrical compression coil spring is molded of resin, durability can be improved without rusting, and accidents such as electric shock can be prevented.

  In any case, connectors 31 and 32 are attached to both ends of the elastic member 30. One connector 31 is attached to the column 10. When the protruding portion 10a is provided in a horizontal direction on the side surface of the support column 10, one connector 31 is formed in a cylindrical shape. By forming a male screw on the protruding portion 10a and forming a female screw on the cylindrical connector 31, the connector 31 can be attached to the protruding portion 10a in a replaceable manner. However, you may attach the protrusion part 10a and the connector 31 so that isolation | separation is impossible with an adhesive agent, without forming a screw | thread.

  Although not shown, a through hole may be provided on the side surface of the column 10 so that the connector 31 penetrates the through hole and protrudes in two directions of the column 10. In this case, elastic members 30 and 30 are attached to both ends of one connector 31.

  The other connector 32 is formed in a cylindrical shape to fix the bar 20. A gap may be provided between the inner surface of the connector and the outer surface of the bar 20, and the gap may be filled with an adhesive 33 so that the connector and the bar 20 may be integrated. The screws 32 and 20 may be integrated with each other.

  The support column 10 is divided into a proximal end portion 11 that maintains a vertical posture and a swingable distal end portion 12, and an upper end portion 11 a of the proximal end portion 11 and a lower end portion 12 a of the distal end portion 12. Are connected by joints 13. As shown in FIG. 3, the upper end edge 11b of the base end side portion 11 is a concave curved surface, and the lower end edge 12b of the front end side portion 12 is the concave portion, as shown in FIG. It is a convex curved surface with a smaller radius of curvature than the curved surface. In order to make the column 10 have such a shape, it is formed of, for example, plastic.

  The joint 13 is formed in a cylindrical shape by an elastic body such as rubber, and the proximal end portion 11, the distal end side portion 12, and the lower end portion 12a of the distal end side portion 12 are externally fitted, and the distal end side portion 12 is tilted. Even if it is, it can return to a vertical posture.

  And the lower end part of the base end side part 11 of the support | pillar 10 is only inserted in the perforated part (not shown) previously provided so that the top plate part 1a and the baseplate part 1c of the arm metal 1 may be followed. It may be axial. In this case, a collar part (not shown) is provided in the middle part of the base end side part 11 so that the collar part is supported by the top plate part 1a of the arm metal 1, and the column 10 is circumferentially arranged. A holder (not shown) for holding the brace 1 is provided so as not to rotate.

  Further, a clamper 40 that holds the arm metal 1 as shown in FIG. 4 may be fixed to the lower end edge 12 b of the base end portion of the support column 10. In the clamper 40, a U-shaped frame 41 and a turning lever 42 are combined. The frame 41 is formed by integrally molding the top plate portion 1a of the arm metal 1, one side plate portion 1b, and the top portion 41a, the side portion 41b, and the bottom portion 41c joined to the bottom plate portion 1c. The top portion 41 a of the clamper 40 protrudes longer than the width of the top plate portion 1 a of the arm metal 1, and a lever 42 is attached to be pivotable by a pin 43. Further, the bottom portion 41c of the clamper 40 is also formed longer than the bottom plate portion 1c of the arm metal 1, is bent outward so that the tip end side is expanded, and a notch into which the lever 42 enters is formed at the center.

  In the lever 42, the fixing portion 42 a and the protruding portion 42 b are integrated with the pin 43 interposed therebetween. The fixing portion 42a is longer than the side plate portion 41b of the arm metal 1, and a male screw is formed on the distal end side. A washer 44 and a bolt 45 that are joined to the outer surface of the bottom portion 41c of the clamper 40 are attached to the male screw. It is done. Moreover, the protrusion part 42b is formed short.

  As shown in FIG. 4A, such a clamper 40 has a posture in which the protrusion 42 b of the lever 42 faces downward, and the top 41 a and the bottom 41 c are the top plate 1 a and the bottom plate 1 c of the brace 1. Is inserted into the brace 1 so as to sandwich the Then, the protrusion part 42b of the lever 42 is pressed against the side plate part 1b of the arm metal 1, and the lever 42 turns around the pin 43 as a rotation axis. When the side portion 41b of the clamper 40 and the side plate portion 1b of the arm metal 1 come into contact with each other, the distal end side of the fixing portion 42a of the lever 42 enters the notch of the clamper 40, and the fixing portion 42a It contacts the other side plate portion 1b. Then, the washer 44 is joined to the outer surface of the bottom 41c of the clamper 40, and the bolt 45 is fastened, so that the lever 42 and the frame 41 of the clamper 40 surround the arm metal 1 and the clamper 40 does not come off the arm metal 1. To be done.

  In the bird harm prevention tool attached to the arm metal 1 in this way, the bar 20 is directed in the same direction as the arm metal 1. Therefore, the bird cannot stop at the arm 1 due to the bar 20 being in the way. When the bird tries to stop at the bar 20, since the bar 20 has flexibility, the bar 20 is bent by the weight (load) of the bird, and the bird cannot stop at the bar 20.

  Further, even when a load is applied to the bar 20 when the bird tries to stop on the bar 20, the load is absorbed by the elastic member 30, and no stress is generated in the portion where the bar 20 is attached to the column 10. . Further, even when a moment is applied to the support column 10 by this load, no moment is generated in the portion where the bar 20 is attached to the support column 10 even if the tip side portion 12 of the support column 10 is tilted. Therefore, even when a load is applied to the bar 20 when the bird tries to stop at the bar 20, the bar 20 is not broken.

  Further, since the distal end side portion 12 of the support column 10 is tilted, no stress is generated in the proximal end portion 11 where the support column 10 is fixed to the arm metal 1. Therefore, even when a load is applied to the bar 20 when the bird tries to stop on the bar 20, the support column 10 is not broken. Further, the distal end side portion 12 and the proximal end side portion 11 of the column 10 are connected by a joint 13, the upper end edge 11 b of the proximal end side portion 11 is a concave curved surface, and the lower end edge 12 b of the distal end side portion 12 is Due to the convex curved surface, the tilted tip end portion 12 automatically returns to the vertical posture.

  In addition, this invention can be variously changed within the range of the invention specific matter described in the claim of this invention, without being limited to the said embodiment. For example, in addition to the two bars 20 along the direction of the arm metal 1 as shown in FIG.

  Further, the support column 10 can be made of a flexible material such as an elastomer. In this case, the base end portion 11 that maintains the vertical posture and the swingable distal end portion 12 can be used. It is not necessary to divide. In addition, when the bar 20 is made of a flexible material such as an elastomer and is attached to the support column 10 for a short time, the bar 20 can be attached to the support column 10 without using the elastic member 30 separately.

It is a front view which shows one Embodiment of the bird damage prevention tool for utility poles which concerns on this invention. It is one Embodiment of the bird damage prevention tool for electric poles which concerns on this invention, Comprising: It is a principal part expanded sectional front view which shows the attachment part of a bar and a support | pillar. It is one Embodiment of the bird damage prevention tool for electric poles which concerns on this invention, Comprising: It is a principal part expanded sectional front view which shows the connection part of the base end side part and front end side part of a support | pillar. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows an embodiment of a bird pole prevention tool for a utility pole according to the present invention, wherein (a) is a partially sectional side view showing a state before the bird pole prevention tool for a utility pole is attached to a brace, and (b) is a utility pole. It is a partial cross section side view which shows the state after attaching the bird damage prevention tool for the arm to a brace. It is a perspective view which shows embodiment different from the above of the bird damage prevention tool for utility poles which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ......... Arm metal 10 ... Support | pillar 11 ... Base end side part 12 ... End side part 13 ... Joint 20 ... Bar 30 ... Elastic member

Claims (4)

A support that can be attached in a vertical position to a brace for a power pole,
A bird damage prevention device for a utility pole, comprising a flexible insulating bar attached to the support in a horizontal posture.   The bird damage prevention tool for a power pole according to claim 1, wherein the bar is attached to the support so as to be in the same direction as the arm for the power pole.   The bird damage prevention tool for a utility pole according to claim 1 or 2, wherein the bar is attached to the support column by an elastic member.   The support column is divided into a base end side portion that maintains a vertical posture and a swingable tip end portion, and a tip end side portion that is inclined at a connection portion between the base end side portion and the tip end side portion is in a vertical posture. 4. The bird damage prevention tool for a utility pole according to claim 1, wherein a joint for returning to the power pole is connected. 5.

Images