JP2009219251A - Bird damage preventing device for overhead wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bird damage preventing device for overhead wires which is surely attached to an overhead wire and can be manufactured at low cost. <P>SOLUTION: The device includes two parts, a projection part 3 and a clamping ring 5 for fixing the projection part 3 to an overhead wire 7. The projection part 3 consists of a protruding part 9, which prevents a bird from perching on the overhead wire 7 and an arc part 11 so attached to the outer periphery of the overhead wire 7 as to form one body, and is made of rubber for elasticity as a whole. The clamping ring 5 fixes the arc part 11 of the projection part 3 to the overhead wire 7, by clamping and compressing it from the outer periphery. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an overhead wire bird harm prevention tool for reducing damage (falling feces, crying, etc.) caused by birds stopping on overhead wires such as power transmission lines and distribution lines.

  It is serious that birds stop on the overhead line, drop feces under the line, and what is under the line is polluted. In addition, when starlings form a large group and stop on the overhead line, the damage of noise caused by squeal is significant. For this reason, conventionally, bird damage prevention tools that prevent birds from stopping on overhead lines have been used.

  Conventional bird damage prevention devices are generally in the form of a ring with a protrusion in which a protrusion is integrally formed on a ring that is fastened and fixed to an overhead wire (see, for example, Patent Document 1). If this ring with protrusions is attached to the overhead wire at an appropriate interval, even if the bird tries to stop at the overhead line, it will not be able to stop because of the protrusion, and the bird will forcibly stop between the protrusions. Even if it hits the protrusion, it will hate to stop at the overhead line.

Japanese Utility Model Publication No. 3-74127

  However, since the conventional bird damage prevention device in the form of a ring with a protrusion is formed by integrally forming the protrusion and the ring, the rigidity of the ring portion is increased due to the presence of the protrusion. As a result, when trying to attach to the overhead wire, the ring deforms insufficiently and does not fit well with the curvature of the outer peripheral surface of the overhead wire, and the engagement between the male locking portion and the female locking portion at both ends There was a problem that there was a shortage of things that could not be attached to the overhead wire.

  Furthermore, since the ring with protrusions is manufactured by injection molding, it is necessary to use different dies depending on the diameter of the overhead wire. For example, in the case of a power transmission line, about 50 types of molds must be prepared in order to manufacture a ring with protrusions corresponding to the type of diameter, and the cost is enormous.

  An object of the present invention is to provide a bird damage prevention device for overhead wires that can be reliably attached to an overhead wire and that is low in manufacturing cost.

  The overhead wire bird damage prevention device according to the present invention is characterized by comprising a projection part having a projection part that prevents a bird from stopping on the overhead line, and a tightening ring that fixes the projection part part to the overhead line. To do.

  In the bird damage prevention device for an overhead wire according to the present invention, the protrusion part is formed by integrally forming the protrusion and an arc portion attached to the outer periphery of the overhead wire. It is preferable that the projecting part part is formed by fastening the arc part from the outer periphery and fixing it to the overhead wire.

  In the bird's damage prevention device for overhead wires according to the present invention, the fastening ring is formed by forming a recess in a part of an inner peripheral surface for fastening the overhead wire, and the projection part includes the projection and the recess. It may consist of what was integrally formed by the clamped ring and the to-be-clamped part pinched | interposed between an overhead wire.

  In the overhead wire bird harm prevention apparatus according to the present invention, it is preferable that the protrusion part is formed of rubber having elasticity.

  In the overhead wire bird harm prevention apparatus according to the present invention, it is preferable that a rigidity imparting member is embedded or inserted in the protrusion of the protrusion part.

  In the overhead wire bird harm prevention apparatus according to the present invention, it is preferable that at least one of the projection part and the fastening ring contains a phosphorescent agent.

  The overhead wire bird harm prevention device according to the present invention is composed of a projection part having a projection part and a tightening ring for fixing this to the overhead line, so that the tightening ring only needs to exhibit a tightening function, Since there is no need to provide a portion with particularly high rigidity, it is possible to cause required elastic deformation at the time of attachment, and the projecting part can be securely fixed to the overhead wire by the tightening force.

  In addition, when the tightening ring is configured to tighten the arc part of the projecting part from the outer periphery, the tightening ring may have the same configuration as the conventional hard-to-fall snow ring and can be manufactured with the same mold as the hard-to-snow ring. Cost can be reduced.

  In addition, when a recess is formed in a part of the inner peripheral surface of the tightening ring and the sandwiched portion of the projecting part is fitted into the recess, the overhead wire is attached with the projecting part assembled to the tightening ring. Since it can be attached to the overhead wire, it can be easily and efficiently attached to the overhead wire.

  In addition, if the protruding parts are made of elastic rubber, they can be tightened and fixed in a state where a part of the protruding parts are compressed with a tightening ring when they are attached to the overhead wire, so that the protruding parts can be more securely attached to the overhead wire. Can be fixed to. Furthermore, if a part of the projecting parts can be compressed and fixed, the range of the outer diameter of the overhead wire that can be applied is almost the same as the compression allowance, so the types of sizes of the projecting parts and the fastening ring can be reduced, and the manufacturing cost Can be cheaper.

  In addition, if the protrusion parts are made of elastic rubber, the rigidity of the protrusions can be secured by embedding or inserting a rigidity-imparting member in the protrusions to ensure the function of preventing birds from stopping. Can do.

  In addition, if a phosphorescent agent is included in at least one of the projecting parts and the clamping ring, the visibility of overhead lines by birds, helicopter operators, etc. will increase from evening to night, thus reducing contact accidents with overhead lines. can do.

Embodiment 1 FIGS. 1 to 3 show an embodiment of the present invention. This overhead wire bird harm prevention tool 1 is composed of a projecting part 3 and a fastening ring 5 as shown in FIG. 1A, and the projecting part 3 is as shown in FIGS. After being attached to the overhead wire 7, it is attached to the overhead wire 7 by tightening with the fastening ring 5.

  As shown in FIG. 2, the protruding part 3 is formed by integrally forming a protruding part 9 that prevents birds from stopping on the overhead wire and a dominant arc-shaped arc part 11 that is attached to the outer periphery of the overhead line. is there. The protruding portion 9 is formed so as to protrude upward from the front side and the back side of the intermediate portion in the circumferential direction of the circular arc portion 11, and becomes thinner toward the tip. A groove 13 into which the fastening ring 5 is fitted is formed on the outer peripheral surface of the arc portion 11. The protrusion part 3 is formed of rubber having elasticity as a whole. As the rubber material for forming the protruding part 3, it is preferable to use silicone rubber, ethylene propylene rubber (EPDM) or the like that has been proven to have weather resistance. If the projection part 3 is formed of such rubber, the arc part 11 can be deformed and easily mounted on the outer periphery of the overhead wire, and can flexibly respond to changes in the outer diameter of the overhead wire. Therefore, it can be used in common for overhead wires with different outer diameters, the types of size of the projection part 3 can be reduced, and the cost is low.

  On the other hand, as shown in FIG. 3, the tightening ring 5 includes a pair of semicircular portions 17 connected to each other by a hinge portion 15 so as to be opened and closed, and a male locking portion 19 and a female die formed on each open end side. By fitting the locking portion 21, it is attached to the outer periphery of the power transmission line. The tightening ring 5 has the same configuration as the conventional difficult snow ring (the material is the same), and most sizes can be manufactured with the same mold as the hard snow ring, and the cost is low. The groove 13 on the outer peripheral surface of the circular arc part 11 of the protruding part 3 is formed so that the width P thereof is substantially the same as the width Q of the fastening ring 5. Further, the tightening ring 5 has an inner diameter when the both ends are closed as shown in FIG. A slightly smaller one than the outer diameter of the groove bottom can be selected and used. If it does in this way, since the fastening ring 5 will be in the state which slightly compresses and clamps the circular arc part 11 of the projection part 3, the bird harm prevention tool 1 can be fixed to the overhead wire 7 firmly.

  If a large number of the bird damage prevention devices 1 are attached to the overhead wire 7 at a required interval as shown in FIGS. 1B and 1C, even if the bird tries to stop on the overhead wire 7, the bird 9 is disturbed by the projection 9. This will prevent bird damage.

  In addition, if one or both of the projecting part 3 and the tightening ring 5 contain a phosphorescent agent, it emits light in the dark from evening to night, so the presence of overhead lines for birds, helicopter operators, etc. It can be visually recognized, and contact accidents with overhead wires can be reduced.

Embodiment 2 FIG. 4 shows another embodiment of the present invention. FIG. 4 shows only the protrusion part 3, but the tightening ring is the same as that of the first embodiment. The protrusion part 3 is obtained by embedding a rod-like rigidity imparting member 23 in the protrusion 9. As the rigidity imparting member 23, a metal wire, an RRP rod, or the like can be used. If the protruding part 3 is made of rubber having elasticity, the protruding part 9 is likely to be deformed and the effect of making it difficult for the bird to stop may be reduced. In this way, the rigidity imparting member 23 is embedded in the protruding part 9. If it does, since the deformation | transformation of the projection part 9 can be prevented, the effect which makes a bird hard to stop can be heightened.

Embodiment 3 FIG. 5 shows still another embodiment of the present invention. Although FIG. 5 also shows only the protrusion part 3, the fastening ring is the same as that of the first embodiment. The protrusion part 3 is different from that of the second embodiment in that the tip of the rigidity imparting member 23 protrudes from the tip of the protrusion 9. If it does in this way, since the front-end | tip of the rigid rigidity provision member 23 comes to contact a bird, the effect which makes a bird hard to stop can be heightened more. The other configuration is the same as that of the second embodiment.

Embodiment 4 FIG. 6 shows still another embodiment of the present invention. The tightening ring 5 used in this bird damage prevention device 1 is formed with a concave portion 27 on a part of the inner peripheral surface of the semicircular portion 17 by forming a hook-shaped portion 25 in the circumferential intermediate portion of one semicircular portion 17. Is formed. Other configurations are the same as those of the tightening ring 5 used in the first embodiment. On the other hand, the protruding part 3 is formed by integrally forming the protruding parts 9 at both ends of the sandwiched part 29 fitted into the recessed part 27. The material and the like of the protrusion part 3 are the same as those in the first embodiment.

  This bird damage prevention device 1 is assembled as shown in FIGS. 6A and 6B by fitting the clamped portion 29 of the projection part 3 into the concave portion 27 of the tightening ring 5, and in this state, the same It is attached to the overhead wire 7 as shown in FIG. The tightening ring 5 has a size that allows the overhead wire 7 to be directly tightened by fitting the male locking portion 19 and the female locking portion 21 at both ends.

  Thus, since the bird damage prevention tool 1 of this embodiment can be attached to the overhead wire 7 in a state where the projection part 3 is assembled to the tightening ring 5, the attachment work to the overhead wire 7 is easily performed. be able to. In the case of this embodiment, the fastening ring 5 is formed by forming a hook-shaped part 25 on a part of the semicircular part 17, but the rigidity of the hook-shaped part 25 is approximately the same as that of the semicircular part 17. The elastic deformation performance required to fit the outer peripheral surface of the overhead wire 7 when tightening 7 can be made substantially the same as that of the tightening ring without the hook-shaped portion 25. Therefore, it can be reliably attached to the overhead wire 7.

  It should be noted that the thickness of the sandwiched portion 29 of the projection part 3 is slightly larger than the depth of the concave portion 27 of the tightening ring 5, and in a state before being attached to the overhead wire, as shown in FIG. It is preferable that a part of the clamping part 29 protrudes inward from the inner peripheral surface of the semicircular part 17. If it does in this way, when the bird damage prevention tool 1 is attached to the overhead wire 7 as shown in FIG. 6C, the hook-shaped portion 25 presses the sandwiched portion 29 against the overhead wire 7 and compresses it. The bird damage prevention device 1 can be firmly fixed to the overhead wire 7.

(A) is a partially cut front view showing an embodiment of an aerial wire bird damage prevention device according to the present invention, and (B) and (C) are states in which the bird damage prevention device of (A) is attached to the overhead wire. The front view and side view which show. The projection part parts of the bird harm prevention tool of FIG. 1 are shown, (A) is a top view, (B) is a front view, (C) is a bottom view, (D) is a side view. 1 shows the tightening ring of the bird damage prevention device of FIG. 1, (A) is a partially cut front view with both ends open, (B) is a front view with both ends closed, (C) is the same side view, (D) is the DD sectional view taken on the line of (B). The other embodiment of the projection part parts of the bird harm prevention tool which concerns on this invention is shown, (A) is a front view, (B) is a side view. The further another embodiment of the projection part parts of the bird harm prevention tool which concerns on this invention is shown, (A) is a front view, (B) is a side view. (A) is a partially cut front view showing still another embodiment of the bird damage prevention device according to the present invention, (B) is a side view thereof, and (C) is the bird damage prevention device of (A) as an overhead wire. The front view which shows the state attached.

Explanation of symbols

1: Bird damage prevention device for overhead wire, 3: Projection parts, 5: Fastening ring, 7: Overhead wire,
9: protrusion, 11: semicircle, 13: groove, 15: hinge, 17: semicircle,
19: male locking part, 21: female locking part, 23: rigidity imparting member, 25: bowl-shaped part,
27: recessed portion, 29: sandwiched portion.

Claims (6)

  An aerial wire bird harm prevention tool comprising: a projection part having a projection part that prevents a bird from stopping on the overhead line; and a tightening ring that fixes the projection part part to the overhead line.   The projection part is formed by integrally forming the projection part and an arc part to be mounted on the outer periphery of the overhead wire, and the fastening ring tightens the arc part of the projection part from the outer periphery to form an overhead wire. The bird damage prevention device for overhead wires according to claim 1, wherein the bird damage prevention device is for fixing to an overhead wire.   The tightening ring is formed by forming a recess in a part of an inner peripheral surface for tightening the overhead wire, and the protrusion part is inserted into the protrusion and the recess and sandwiched between the tightening ring and the overhead wire. 2. The bird damage prevention device for overhead wires according to claim 1, wherein the sandwiched portion is integrally formed.   The bird damage prevention tool for overhead wires according to any one of claims 1 to 3, wherein the projecting parts are formed of rubber having elasticity.   5. The bird damage prevention tool for overhead wires according to claim 4, wherein a rigidity imparting member is embedded or inserted in the protrusion of the protrusion part.   6. The bird damage prevention device for overhead wires according to claim 1, wherein a phosphorescent agent is contained in at least one of the projecting part and the tightening ring.

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