JP2007045368A - Bracket of trolley wire, and bird injury preventive disk - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bracket of a trolley wire, and a bird injury preventive disk capable of inhibiting the fly of wild birds and preventing the insulation of a long rod insulator from being easily broken. <P>SOLUTION: In the bracket, one end of a long rod insulator 11 is connected to a stay 1 and the other end is connected to a horizontal main pipe 12, and a trolley wire is provided on a tip portion of the horizontal main pipe 12, and the bird injury preventive disk 13 is added to a connection part of the long rod insulator 11 to the horizontal main pipe 12. The bird injury preventive disk 13 is a disk-shaped or semi disk-shaped member, and its space for allowing wild birds to fly thereto is eliminated by providing the bird injury preventive disk 13, and formation of a new conductive passage between the stay 1 and the horizontal main pipe 12 caused by wild birds is eliminated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a trolley wire bracket that is provided with measures for preventing short-circuit accidents involving wild birds such as crows, and to a bird damage prevention disk attached to the bracket for the purpose of preventing short-circuit accidents.

  The trolley wire bracket is a frame structure for installing an electric wire (trolley wire) directly above the track of an electric vehicle at a predetermined height, and includes a fixed bracket and a movable bracket. For example, as shown in FIG. 6, the movable bracket has one end of the long insulator 2 held by the band 3 on the support 1 and the other end of the long insulator 2 horizontally. The main pipe 4 is held, and one end of the long trunk insulator 2 is held on the support 1 by the band 3, and the oblique main pipe 5 is held at the other end of the long trunk insulator 2, so that the horizontal main pipe 4 and the oblique main pipe 5 are A handle fitting 8 is provided on the parallel portion 6 at the tip by a support fitting 7, and a trolley wire T is supported on the tip of the handle fitting 8. With this movable bracket, the support fitting 7 can be moved in the horizontal direction, and the direction of the handle fitting 8 can be reversed. The long trunk insulator 2 is grounded by a ground wire E provided along the column 1 (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 06-211074 (full description, full view)

  Conventionally, the trolley wire bracket has been maintained between the trolley wire and the track by the long trunk insulator provided between the column and the horizontal main pipe, but by the arrival of relatively large wild birds such as crows There was a risk of a short-circuit accident that would break the insulation between the long trunk insulators. Referring to FIG. 6, a high voltage is applied between the trolley wire T and the track to supply power to the electric car, the horizontal main pipe 4 of the iron pipe is charged, and the long trunk insulator 2 is grounded. For example, if the wild bird B flies and stops at the horizontal main pipe 4 in the vicinity of the connecting portion between the horizontal main pipe 4 and the long trunk insulator 2, there is a possibility that the feathers of the wild bird B come into contact with the support 1. That is, when the foot of the wild bird B comes into contact with the horizontal main pipe 4 and the blade comes into contact with the support column 1, a new conductive path from the foot to the blade is formed between the terminals of the long trunk insulator 2. As a result, a high-voltage current flows through the long trunk insulator 2 and dielectric breakdown occurs. When such a short circuit due to bird damage occurs, an accident occurs in which the voltage source supplied between the trolley wire and the track falls and the electric vehicle stops.

  In order to prevent bird damage as described above, as shown in FIG. 7, the long trunk insulator 2 is provided with a pointed member 9 to prevent wild birds from flying, and the terminals of the long trunk insulator 2 due to wild birds are short-circuited. Avoid accidents, or protect the connection between the long trunk insulator 2 and the horizontal main pipe 4 and the vicinity thereof with the bird damage prevention cover 10 made of polyethylene, and keep the distance between the terminals of the long trunk insulator 2 sufficiently. Therefore, measures are taken to prevent short circuit accidents. However, there is a risk that the pointed member 9 may break or the bird damage prevention cover 10 may be contaminated with bird droppings or the like, and an accident may occur in which the leakage is caused by tracking due to the contamination.

  The present invention has been made in view of the problems as described above, and is a trolley wire bracket that can prevent wild birds from flying and prevent the insulation of the long trunk insulator from being easily broken. The purpose is to provide a bird damage prevention disk.

  The present invention has been made in order to achieve the above object, and in the invention of claim 1, a trolley wire is connected to the end portion of the main pipe by connecting one end of the long trunk insulator to the support and connecting the other end to the main pipe. The trolley wire bracket is characterized in that a bird damage prevention disk is provided in the vicinity of the connecting portion between the long trunk insulator and the main pipe. The main pipe may be only a horizontal main pipe, or a bird damage prevention disk may be attached to an oblique main pipe in addition to the horizontal main pipe.

  According to a second aspect of the present invention, the bird damage prevention disk is a circular member or a semicircular member, and the bird damage prevention disk is located near the connection portion with respect to the axial center of the long trunk insulator and the main pipe. The trolley wire bracket according to claim 1, wherein the trolley wire bracket is mounted vertically.

  The invention of claim 3 is a bird harm prevention disk attached to the bracket of the trolley wire according to claim 1 or 2, wherein the main trunk of the bracket and the main pipe that insulates the main pipe of the bracket from the column. It is a bird damage prevention disk characterized by being a circular member or a semicircular member provided perpendicularly to the axial center of the long trunk insulator and the horizontal main pipe in the vicinity of the connecting portion.

  According to a fourth aspect of the present invention, the bird harm prevention disk has a circular shape in which two semicircular members are combined, and a through hole is provided in the center of the bird harm prevention disk to fit in the vicinity of the connection portion. The bird damage prevention disk according to claim 3, wherein

  In the invention of claim 5, a semicircular notch is provided at the center of the base of the semicircular member, and the semicircular member rises along the base and the semicircular notch. The bird damage prevention disk according to claim 4, wherein a contact wall portion is provided, and each corresponding contact wall portion of the semicircular member is joined.

  According to a sixth aspect of the present invention, the bird harm prevention disk is a semicircular member, the semicircular member, a bottom portion of the semicircular member, and a semicircular notch provided in the center of the bottom portion. The mounting wall fitting which engages with the above-mentioned main pipe is provided, and the contact wall part which stands up along with is provided, and it engages with the semicircular notch. It is a bird damage prevention disk.

In the invention of claim 1, in the bracket for connecting one end of the long trunk insulator to the support and connecting the other end to the main pipe, and erection the trolley wire at the tip of the main pipe,
It is a trolley wire bracket characterized in that a bird harm prevention disk is attached in the vicinity of the connecting portion between the long trunk insulator and the main pipe, and the long trunk insulator is grounded by a ground wire provided along the column, Bird damage prevention discs have the effect of partitioning the main pipe and the pillars along the ground wire, and wild birds such as crows hate the bird damage prevention discs provided in the form of screens in the vicinity of the long trunk insulators. Because it avoids flying, it eliminates the space where wild birds can fly by opening their blades near the connection area, so a new conductive path is formed between the main pole and the main line along which the ground wire is installed. Thus, it is possible to prevent the insulation between the terminals of the long trunk insulator from being broken and to prevent an accident that the electric vehicle is turned off and the electric vehicle is stopped. In addition, the bird damage prevention disk can be rotated or rotated to prevent wild birds from flying. In addition, even if the long trunk lion is contaminated with wild bird droppings, the bird damage prevention disk is provided so as to partition between the support column and the long trunk lion section. Short circuit accidents due to tracking can be prevented.

  In the invention of claim 2, the bird damage prevention disk is a circular member or a semicircular member, and the bird damage prevention disk is located in the vicinity of the connecting portion with respect to the axial center of the long trunk insulator and the main pipe. The trolley wire bracket according to claim 1, characterized in that the bracket can be easily mounted on an existing bracket.

  According to a third aspect of the present invention, there is provided a bird harm prevention disk attached to the trolley wire bracket according to the first or second aspect, wherein the main trunk of the bracket and the main pipe are insulated from the column. Since it is a bird damage prevention disk characterized by being a circular member or a semicircular member provided perpendicularly to the axis of the main trunk and the main pipe in the vicinity of the connecting portion, The long trunk insulator part is partitioned by a bird damage prevention disk, and it is possible to prevent wild birds from flying near the connection part between the support pillar part and the long trunk insulator part. Further, if the bird damage prevention disk is a circular member, the circular member may be rotated to prevent wild birds from flying. In this way, it is possible to create an environment in which wild birds come near the connection part and hardly stop, and there is an advantage that it is difficult for an accident that a wild bird comes and short-circuits between the terminals of the long trunk insulator. In addition, even if the long trunk lion is contaminated with wild bird droppings, the bird damage prevention disc separates the pillar from the long trunk lion section, so a short circuit accident due to tracking caused by the bird itself or bird droppings, etc. Can be prevented.

  According to a fourth aspect of the present invention, the bird harm prevention disk has a circular shape formed by combining two semicircular members, and a through hole is provided in the center of the bird harm prevention disk to fit in the vicinity of the connecting portion. The bird damage prevention disk according to claim 3, which has the advantage that two semicircular members can be easily incorporated in the vicinity of the connecting portion between the existing long trunk insulator and the main pipe. Further, if the bird damage prevention disk is a circular member, there is an advantage that the bird damage prevention disk itself can be rotated, and wild birds can be prevented from flying to the unstable bird damage prevention disk.

  In the invention of claim 5, a semicircular cutout is provided in the center of the bottom side of the semicircular member, and rises along the bottom side of the semicircular member and the semicircular cutout. The contact wall portion of the semicircular member according to claim 4, wherein the contact wall portion is provided, and the corresponding contact wall portions of the semicircular member are joined to each other. Since they can be easily attached to each other in the vicinity of the connection portion between the long trunk insulator and the horizontal main pipe, there is an advantage that the bird damage prevention disk can be easily attached to the existing bracket.

  In the invention of claim 6, the bird harm prevention disk is a semicircular member, the semicircular member, the bottom side of the semicircular member, and a semicircular notch provided in the center of the bottom side The mounting wall fitting which engages with the above-mentioned main pipe is provided, and the contact wall part which stands up along with is provided, and it engages with the semicircular notch. Since it is a bird damage prevention disk, there is an advantage that a semicircular member can be easily incorporated in the vicinity of the connection portion between the long trunk insulator and the main pipe, and the bird damage prevention disk can be easily attached to the existing bracket. There is an advantage that the harm prevention disk can be reduced in weight.

  Embodiments of a trolley wire bracket and bird damage prevention disk according to the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a trolley wire bracket according to the present invention, and is a main part front view in which a bird damage prevention disk for preventing a short circuit accident caused by wild birds such as crows is attached to the bracket. FIG. 2 is a perspective view of a main part showing an embodiment of the bird harm prevention disk of the present invention. Fig.3 (a) is principal part sectional drawing which shows the bird damage prevention disk of this embodiment, FIG.3 (b) is a side view of a long trunk insulator. FIG. 4 is a perspective view showing another embodiment of the present invention. FIG. 5 is a cross-sectional view of an essential part showing another embodiment of the present invention.

  In the trolley wire bracket of this embodiment, as shown in FIG. 1, one end of the long insulator 11 is supported on the support column 1 by the belt 3, the other end of the long insulator 11 is fixed to the horizontal main pipe 12, and One end of the long trunk insulator 15 is supported on the support column 1 by the belt 3, the other end of the long trunk insulator 14 is fixed to one end of the oblique main pipe 15, and the horizontal main pipe 12 and the oblique main pipe 15 are combined. Yes. The horizontal main pipe 12 and the oblique main pipe 15 are made of steel, and the long trunk insulators 11 and 14 are grounded by a ground wire E provided along the column 1. The horizontal main pipe 12 and the oblique main pipe 15 are charged with a high voltage. A bird damage prevention disk 13 is fitted in the bracket in the vicinity of the connection portion between the long trunk insulator 11 and the horizontal main pipe 12 and in the vicinity of the connection portion between the long trunk insulator 14 and the oblique main pipe 15. For example, an epoxy resin or the like is used, and the bird damage prevention disk 13 is made of wild birds such as the long trunk insulators 11 and 14 and the long trunk insulator 11 and the horizontal main pipe 12 and the long trunk insulator 14 and the oblique main pipe 15. To prevent it from flying to the connection.

  The bracket includes a fixed bracket and a movable bracket. This embodiment can be applied to any form, and the structure of the end portion of the bracket is not described in detail, but has various shapes. And is not limited to a specific structure. Moreover, although the suspending member for constructing a trolley wire is provided in the front-end | tip part of a bracket, the structure of this suspending member is not specified but all well-known things are object.

  Next, the bird harm prevention disk 13 of this embodiment is demonstrated with reference to the long trunk insulator 11 of FIG. 2, FIG. 3 (a) and FIG.3 (b). Incidentally, as shown in FIG. 3B, the long trunk insulator 11 is provided with metal caps 11b at both ends of the insulator main body 11a, and the tongue-like member 11c protrudes from the metal cap 11b. A mounting hole 11d is provided in the front.

  The bird damage prevention disk 13 includes two semicircular members 17. A semicircular notch 18 a is provided at the center of the bottom of the semicircular member 17, and the bottom and semicircular notches of the semicircular member 17 are provided. A contact wall portion 17a that rises at a right angle from the plane of the semicircular member 17 is provided along the portion 18a. The contact wall portions 17a are abutted against each other, and are tightened and combined with bolts and nuts 16 to form a circular shape. The bird damage prevention disk 13 is formed. The bird damage prevention disk 13 is provided with a through hole 18 in the center of the semicircular cutout 18a, and the through hole 18 is fitted to a metal cap 11b in the vicinity of the connection portion between the long trunk insulator 11 and the horizontal main pipe 12. .

  The horizontal main pipe 12 of the bracket tightens the tongue-like member 11c at one end of the long trunk insulator 11 with bolts and nuts 19 between the through-holes of the tongue-like member 11c and the through-holes of the belt 3 provided in the column 1. The through hole of the tongue-like member 11 c at the other end of the long trunk insulator 11 and the through hole provided at the end of the horizontal main pipe 12 are tightened with bolts and nuts 20 and fixed to the column 1. The bird damage prevention disk 13 is fitted in a metal cap 11b in the vicinity of the connection portion between the long trunk insulator 11 and the horizontal main pipe 12 so as to be fitted substantially vertically with respect to the axial center of the long trunk insulator 11 or the horizontal main pipe 12.

  The bird damage prevention disk 13 has a shape with a thickness of about 8 mm and a radius of about 250 mm to 300 mm when a wild bird targets a crow. In addition, depending on the area, when other wild birds are targeted, the dimensions of the bird damage prevention disk 13 may be set in accordance with the body shape of the wild bird. This is for avoiding the bird damage prevention disk 13 and the vicinity of the bird flying by hating the bird damage prevention disk 13 from coming into contact with the bird damage prevention disk 13.

  Further, as shown in FIG. 3A, the bird damage prevention disk 13 engages the metal cap 11b with the overhanging portion 17b protruding from the periphery of the semicircular cutout portion 18a provided in the semicircular member 17. By doing so, the bird damage prevention disk 13 may not easily fall off the metal cap 11b. Further, the bird damage prevention disk 13 is mounted so as to rotate or rotate in a state where it is mounted on the metal cap 11b, and the bird damage prevention disk 13 rotates so that the bird damage prevention disk 13 rotates when the bird bird stops on the bird damage prevention disk 13. You may make it stop in a posture and a wild bird may hate the bird damage prevention disk 13. FIG.

  Next, another embodiment of the bird harm prevention disk of the present invention will be described with reference to FIGS. 4 (a) and 4 (b). The bird harm prevention disk 13 shown in FIG. 4 has a semicircular shape, and includes a semicircular member 17 and a mounting bracket 21. The semicircular member 17 is the same as that in the above embodiment, and the semicircular member 17 is formed along the bottom side and a semicircular notch 18a provided at the center of the bottom side. An abutting wall portion 17a rising at a right angle from the plane is provided. The abutting wall portion 17a is provided with a through-hole for mounting with a bolt / nut 16.

  The mounting bracket 21 is provided with a concave fitting portion 21b for accommodating the metal cap 11b, and the concave fitting portion 21b is provided with a semicircular cutout portion 21a symmetrical to the semicircular cutout portion 18a. A contact member 21c facing the contact wall portion 17a extends from the recessed fitting portion 21b, and a recessed fitting portion 21d with which the horizontal main pipe 11 is engaged is provided at the tip of the recessed fitting portion 21b. The concave fitting portion 21d is provided with a concave portion 21e with which the bolt / nut 20 is engaged. The contact member 21c is provided with a through hole corresponding to the through hole of the contact wall portion 17a.

  The bird damage prevention disk 13 is mounted on the bracket by fitting the contact wall portion 17a of the semicircular member 17 and the contact member 21c of the mounting bracket 21 to the metal cap 11b of the long trunk insulator 11, The abutting wall portion 17a and the abutting member 21c are joined by bolts and nuts 16 that are inserted into through holes provided in the abutting wall portion 17a and the abutting member 21c and tightened, and the long trunk insulator 11 and the horizontal main pipe 12 are joined. The bolts and nuts 20 are connected to the concave portions 21e of the concave fitting portions 21d to prevent the bird harm prevention disk 13 from rotating. The bird harm prevention disk 13 is mounted on a metal cap 11b in the vicinity of the connecting portion between the long trunk insulator 11 and the horizontal main pipe 12 so that the semicircular portion of the bird harm prevention disk 13 faces upward. Then, it is mounted so as not to rotate or rotate. Further, the bird harm prevention disk 13 of FIG. 4 has the same shape as that of the above embodiment, the thickness thereof is about 8 mm, the radius thereof is about 250 mm to 300 mm, and the material thereof is an epoxy resin or the like.

  Next, another embodiment of the present invention will be described with reference to FIG. It is assumed that the bracket is as shown in FIG. The bird harm prevention disk 13 of this embodiment has a structure that is fixed in the vicinity of the connection portion between the long trunk insulator 11 and the horizontal main pipe 12 and in the vicinity of the connection portion between the long trunk insulator 14 and the oblique main pipe 15. Unlike the above embodiment, the bird damage prevention disk 13 of the present embodiment is of a form that is fixed to the horizontal main pipe 12 in the vicinity of the connecting portion between the long trunk insulator and the main pipe.

  The bird damage prevention disk 13 is a combination of two semicircular members 17 and is similar to the above embodiment in that a through hole 18 is formed at the center thereof. By fitting the horizontal main pipe 12 or the oblique main pipe 15 into the through hole 18, the bird damage prevention disk 13 is mounted. The semicircular member 17 is provided with a base portion and a semicircular cutout portion provided at the center of the base portion, and a contact wall portion 17a rising at a right angle along the base portion and the semicircular cutout portion. Is provided. The disc damage prevention disk can be easily obtained by fitting the semicircular cutout portions of both the semicircular members 17 to the end portions of the horizontal main pipe 12, joining the abutting wall portions 17a, and tightening with bolts and nuts. 13 can be mounted. The horizontal main pipe 12 and the long trunk insulator 11 and the oblique main pipe 15 and the long trunk insulator 14 are connected by bolts and nuts 20. A through hole 22 is formed through which the bolt and nut 20 are fitted into the through hole 22 to prevent the semicircular member 17 from rotating.

  As described above, the bird damage prevention disk of the present invention is a semicircular member that can be easily incorporated in the vicinity of the connection between the long trunk insulator and the horizontal main pipe or between the long trunk insulator and the oblique main pipe. It can be easily attached to an existing bracket. In addition, the semicircular bird damage prevention disk has an advantage that it can be reduced in weight, and any form can be selected according to the scale of the bracket.

  In addition, the bracket of the present invention is provided with a bird damage prevention disk on the bracket, taking advantage of the property that wild birds do not open their blades in the vicinity of obstacles, so as not to provide a space for wild birds to fly and spread. It is a bird damage prevention circle as a partition wall and can prevent occurrence of a short circuit accident due to wild birds. In other words, by attaching the bird damage prevention disk to the bracket, the bird damage prevention disk can partition between the support pillar part along which the ground wire is installed and the long trunk insulator part connecting the horizontal or oblique main pipe. Therefore, it is possible to prevent wild birds from flying by spreading their wings, preventing a short circuit between the ends of long trunk insulators by wild birds and preventing the electric car from stopping due to the occurrence of a short circuit accident, feces, etc. It is possible to prevent accidents such as burning due to electric leakage such as tracking, which is thought to be caused by contamination due to.

  As an application example of the present invention, there is a bird damage prevention disk for preventing bird damage of a bracket of a trolley wire for supplying electric power to an electric vehicle, and a bracket equipped with this bird damage prevention disk.

It is a principal part front view which shows one Embodiment of this invention. It is a principal part perspective view of this embodiment. (A) is principal part sectional drawing which shows one Embodiment of this invention, (b) is a side view of a long trunk insulator. (A) is a perspective view which shows other embodiment of this invention, (b) is a detailed perspective view of an attaching part. It is a schematic sectional drawing of the bird damage prevention disk which shows other embodiment of this invention. It is a front view of the bracket of the conventional trolley wire. It is a principal part front view of the bracket in which the conventional bird damage countermeasure was taken.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 3 Belt 11, 14 Long trunk insulator 12 Horizontal main pipe 13 Bird damage prevention disk 16, 19 Bolt 15 Oblique main pipe 17 Semicircular member 17a Abutting wall part 18 Through hole 18a Semicircular notch part 20 Bolt and nut 21 Mounting bracket 21a Semi-circular cutout portion 21b, 21d Recessed fitting portion 21c Contact member 21e Recessed portion 22 Through hole

Claims (6)

In the bracket that connects one end of the long insulator to the column and connects the other end to the main pipe, and lays the trolley wire at the tip of the main pipe,
A trolley wire bracket, characterized in that a bird damage prevention disk is attached in the vicinity of a connection portion between the long trunk insulator and the main pipe.   The bird damage prevention disk is a circular member or a semicircular member, and the bird damage prevention disk is mounted in the vicinity of the connection portion vertically with respect to the axial center of the long trunk insulator and the main pipe. The trolley wire bracket according to claim 1. A bird harm prevention disk attached to the bracket of the trolley wire according to claim 1 or 2,
A circular member or a semicircular member provided perpendicularly to the axial center of the main trunk and the main pipe in the vicinity of a connection portion between the main main pipe and the main trunk that insulates the main pipe of the bracket. Bird damage prevention disk characterized by.   The bird damage prevention disk is a circular shape formed by combining two semicircular members, and a through hole into which the vicinity of the connection portion fits is provided at the center of the bird damage prevention disk. The bird damage prevention disk described in 1.   A semicircular cutout is provided at the center of the bottom side of the semicircular member, a contact wall portion rising along the bottom side of the semicircular member and the semicircular cutout is provided, The bird damage prevention disk according to claim 4, wherein the respective contacting walls of the circular members are joined.   The bird damage prevention disk is a semicircular member, and a contact wall portion that rises along the semicircular member, a bottom portion of the semicircular member, and a semicircular cutout provided in the center of the bottom portion The bird damage prevention disk according to claim 3, further comprising a mounting bracket that is locked to the semicircular cutout and that engages with the main pipe.

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