JP5084455B2 - Winding prevention tool for utility pole branch line - Google Patents

Description

The present invention is mounted on a branch line to support utility pole at the place where the vine plants lush,該蔓plant is one that relates utility pole branch for helical prevented again and again used to prevent the roll up along said supporting line.

  Conventionally, a utility pole built on a general ground is supported and reinforced by obliquely extending a branch line from the ground to near the upper end of the utility pole. By the way, for example, when a utility pole is built in a mountainous area or a forested area where vines such as cocoons and vines are clustered, the vine and vine vines roll up the branch line and reach the upper part of the utility pole. This is one factor that causes a ground fault. Therefore, in order to prevent the occurrence of the ground fault, a cylindrical power pole branch line having a predetermined diameter and a size that can prevent the weeds from rolling up to a certain height of the branch line. Wearing protective equipment.

The electric pole branch line anti-winding device is composed of a pair of half-cut cylinders divided into two equal parts by a surface including the central axis. Both half-cut cylinders are configured such that one side edge parallel to the central axis is connected by a hinge portion, and the other side edge is freely opened and closed. Further, a clamping mechanism capable of being clamped and fixed to the branch line so as to be slidable in only one direction along the branch line is integrally incorporated in one half-cut cylinder. Then, a branch line is interposed between the two half-cut cylinders, and the pinching mechanism is clamped and fixed to the branch line, whereby the utility pole branch line anti-winding device is mounted at a predetermined height position of the branch line ( For example, see Patent Document 1.)
Japanese Patent Laid-Open No. 11-95 (page 4-6, FIG. 1, FIG. 4, FIG. 10)

  By the way, the power pole branch line anti-winding prevention tool of Patent Document 1 always has a force acting to slide down along the branch line due to its own weight. In addition, in order to prevent the vines from rolling up, the anti-winding device for the utility pole branch line is formed relatively large, so that it is easily affected by the wind. When blown by the wind, vibration and shaking occur in the anti-winding device for the utility pole branch line, which also adds a rotational force with the branch line as the central axis. On the other hand, the power pole branch line anti-winding tool is clamped and fixed to the branch line by the pinching mechanism, but the pinching mechanism is integrally fixed to the electric pole branch line anti-winding tool, so that the vibration, Directly affected by shaking and rotational force. That is, when the electric pole branch line anti-winding device tries to rotate around the branch line, the rotation force causes slippage between the branch line and the clamping mechanism, and eventually the electric pole branch line's anti-winding device rotates. End up. As a result, there has been a problem that the anti-winding device for the utility pole branch line gradually falls downward along the branch line and reaches the vicinity of the ground, so that the original function of preventing the winding-up cannot be performed.

  The reason that the anti-winding tool for electric pole branch line slides downward along the branch line is that the branch line is generally formed by combining several steel wires in a spiral shape, and the sandwiching mechanism has its outer peripheral surface, That is, if it slides and rotates along the spiral outer peripheral surface, it slides downward as it is.

Therefore, the present invention has been made in view of the above problems, and it is essential that the anti-winding device for the utility pole attached to the branch line is not necessary along the branch line even if it is blown by the wind. The purpose of the present invention is to provide a tool for preventing the spread of utility poles that can always exhibit its function of preventing the spread of wind.

In order to achieve the above object, the anti-winding device for utility poles according to the present invention includes a main body of anti-winding device attached to the main wire and having a storage cavity formed therein, and a storage cavity of the main body of anti-winding device. A branch line stopper that is positioned and fixed to the branch line and prevents the main part of the anti-whistle device from moving below the branch line, the main part of the anti-wine device that is fixed to the branch line. The tool can be rotated around the branch line in a state where the tool is stored in the storage cavity .

Further, the anti-wound device body of the present invention comprises a pair of half-cut cylinders that are divided into two on a plane including a central axis, and the storage cavity is formed along the central axis along the pair of half-cut cylinders. It is provided in communication with a branch line insertion hole through which the branch line is inserted, and the inner diameter thereof is larger than the outer diameter of the branch line stopper .

Furthermore, the branch line stopper according to the present invention is characterized in that a clamping device capable of being clamped and fixed to the branch line so as to be slidable in only one direction along the branch line is provided .

In addition, it is preferable to provide a friction reducing means for reducing friction between the outer peripheral surface of the branch line stopper and the inner peripheral surface of the storage cavity. For example, as the friction reducing means, a plurality of hemispherical protrusions protruding from the outer peripheral surface are employed. Further, instead of the friction reducing means described above, it is also conceivable to provide a friction reducing means for reducing the friction between the inner peripheral surface of the storage cavity and the outer peripheral surface of the branch line stopper. For example, as the friction reducing means, a plurality of hemispherical protrusions protruding from the inner peripheral surface are employed.

Examples of the shape of the branch line stopper include a spherical shape, a substantially rice ball shape, and a dome shape having a hemispherical tip. In addition to the hemispherical protrusion, the friction reducing means may have another shape as long as it can reduce friction. Using the branch line stop is used by housing in Tsurumaki preventing device body accommodating cavity portion while attached to the branch, so as to receive the face of the downstream side a outer Tsurumaki preventer body You can also In particular, there is an actual benefit in the case of using the anti-wound device body without the storage cavity.

According to the present invention, the anti-winding device for the utility pole branch line is provided with the anti- winding device main body and the branch wire stopper separately and separately forming the storage cavity portion in the anti-winding device body and in the storage cavity portion. A branch line stopper is housed, and the branch line stopper is brought into contact with the inner peripheral surface of the housing cavity through friction reducing means. Therefore, the friction between the branch line stopper and the inner peripheral surface of the storage cavity is reduced, and when it is blown by the wind, only the swoop prevention body itself rotates about the branch line as the central axis, Little affected by wind. In other words, the main body of the cigarette prevention tool only rotates at the position where it is mounted, and does not slide down along the branch line. As a result, an effect of always exhibiting the original function of preventing a swarm is obtained.

  If friction reducing means such as a plurality of hemispherical protrusions are provided on either the inner peripheral surface of the storage cavity or the outer peripheral surface of the branch line stopper, the inner peripheral surface and the outer periphery that is in sliding contact with the inner peripheral surface The friction with the surface is reduced, and the anti-slip effect of the anti-winding device for the utility pole is further enhanced.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an anti-winding device for utility poles according to the present invention will be described below with reference to the drawings. In the present invention, the main body and the first to third branch line stoppers according to the first to second embodiments are used. Therefore, first, a first embodiment using the first vine prevention tool body and the first branch line stopper will be described. 1 to 12 show a first embodiment. FIG. 1 is a perspective view of the main body part of the first swoop prevention device and the first branch line stopper, FIG. 2 is a perspective view of the main body part of the first swirl prevention device , and FIG. 3 is an enlarged view of the WW line in FIG. 4 is a perspective view showing an open state of the first branch line stopper, FIG. 5 is an enlarged sectional view taken along line XX in FIG. 1, and FIG. 6 is a sectional view taken along line YY in FIG. As will be described later, the first vine prevention tool main body A1 is attached to the branch line D together with the first branch line stopper B1, and prevents the vines from rolling up on the branch line D.

The first boom prevention tool main body A1 is composed of a columnar prevention tool main body 1. The protective device body 1 is formed of a synthetic resin having a light shielding property, for example, a black polyethylene resin, and has a cylindrical shape, for example, a cylindrical body having a predetermined diameter, and is closed at both end surfaces including the central axis. More specifically, as shown in FIG. 2, the prevention device main body 1 is composed of a pair of semi-cylindrical bodies 3a and 3b that are divided into two equal parts along the central axis. The semi-cylinders 3a and 3b have their half-cut surfaces closed, and parallel one side edges 4a and 4a sandwiching the central axis are connected by the hinge part 5 and parallel to the central axis facing the central axis. The other side edges 4b, 4b can be freely opened and closed. The male engagement members 6a and 6a are integrally provided on both sides along the longitudinal direction of the other side edge 4b of one half-cut cylinder 3a, and the length of the other side edge 4b of the other half-cut cylinder 3b. On both sides along the direction, female engagement members 6b, 6b are positioned integrally with the male engagement members 6a, 6a so that the male engagement members 6a, 6a can be detachably engaged. Is provided.

  Each male engagement member 6a has elastic bifurcated locking pieces 7 and 7 which are parallel to each other and are spaced apart from each other, and a locking claw which faces the outer side of the distal end of each locking piece 7 8 is protrudingly provided. Each of the female engaging members 6b is large enough to fit the bifurcated locking pieces 7 and 7 against the elasticity of the bifurcated locking pieces 7 and 7 on the surface facing the bifurcated locking pieces 7 and 7. The engagement holes 10 and 10 are formed into a rectangular frame shape having a plurality of insertion openings 9 and can engage with the respective outer locking claws 8 and 8 when both the locking pieces 7 and 7 are inserted on both side surfaces. Has been established. Further, in the engaged state, the locking claws 8 and 8 are disengaged by pushing the locking claws 8 from the outside of the engagement holes 10 against each other inward against the elasticity. The pieces 7 and 7 come out of the insertion port 9.

  Concave strips 12 and 12 having a semicircular cross section along the central axis of the main body 1 of the protector 1 are recessedly provided on the half-cut surface walls 11a and 11b of the half-cut cylinders 3a and 3b that overlap each other. Then, as shown in FIG. 3, when the half-cut cylinders 3 a and 3 b are closed, the both concave ridges 12 and 12 are matched to each other and both side end walls 13 in the central axis direction along the central axis of the prevention device main body 1. A branch line insertion hole 14 that opens at 13 and passes through the branch line D is formed. The inner diameter of the branch line insertion hole 14 is set to be slightly larger than the outer diameter of the branch line D. Therefore, the central axis line and the central axis line of the branch line D substantially coincide with each other. In addition, hemispherical concave portions 15a and 15b having the same size and being opposed to each other are provided at substantially the center positions of both the semi-finished walls 11a and 11b. When the semi-cylindrical bodies 3a and 3b are closed, the recessed hollow portions 15a and 15b are matched, and the storage cavity portion 16 is formed in which the inside becomes a hollow sphere centered on the central axis of the protection device main body 1. The The storage cavity 16 communicates with the branch line insertion hole 14. A first branch line stopper B1, which will be described in detail below, is stored in the storage cavity 16 when the prevention tool main body 1 is mounted on the branch line D.

  The first branch line stopper B1 is also molded from a synthetic resin having a light shielding property, for example, a black polyethylene resin, and when the storage cavity 16 is a hollow sphere, it is molded into a hollow sphere having a diameter slightly smaller than the diameter of the hollow sphere. The Moreover, 1st branch line stopper B1 consists of semi-circular ball body 17a, 17b which is a pair of half-divided body divided | segmented equally as shown in FIG. Each of the semi-finished spheres 17a and 17b is covered with a semi-cut surface wall 18a and 18b, and its one side edges 19a and 19a are connected via a hinge part 20 with the central axis interposed therebetween. The other end edges 19b and 19b are opened and closed freely as a center. The semi-finished walls 18a and 18b are provided with concave strips 21 and 21 having semicircular arc sections along the central axis, that is, the diameter, of the semi-finished walls 18a and 18b. The hinge portion 20 is located on a line perpendicular to the concave strip portions 21 and 21. As shown in FIG. 5, when the semi-finished spheres 17a and 17b are closed, the concave portions 21 are matched, and branch line insertion holes 22 are formed to open at both end surfaces along the diameter and to insert the branch line D. The The inner diameter of the branch line insertion hole 22 is also set to be slightly larger than the outer diameter of the branch line D. Therefore, the central axis of the branch line insertion hole 22 and the central axis of the branch line D substantially coincide.

  On the semi-finished surface walls 18a and 18b facing each semi-finished spherical body 17a and 17b, rectangular concave portions 23a and 23b having different sizes are formed at positions substantially corresponding to each other. These recessed portions 23a and 23b are matched when the semi-circular spheres 17a and 17b are closed, and communicate with the branch line insertion hole 22 at the center thereof. Among these, the plate 24 in which one side surface 24a is located slightly below the bottom of the concave portion 21 is disposed in the small concave portion 23a of one semi-finished spherical body 17a. The plate 24 has a crank-shaped mounting piece 25 integrally projecting at each of its four corners, and is fixed to the semi-finished wall 18a by fastening the screw 26 via each mounting piece 25. A clamping mechanism 27 that clamps the branch line D is provided on one side surface 24 a of the plate 24. The clamping mechanism 27 is located on one side of the concave strip 21 and is provided with a stopper piece 28 projecting in parallel with the concave strip 21 and on the other side and pivotally attached to a support shaft 29a. And a cam piece 29 that freely rotates along one side surface 24 a of the plate 24. A branch line D inserted through the branch line insertion hole 22 is interposed between the stopper piece 28 and the cam piece 29, and the clamping mechanism 27 is connected to the first branch line stopper B1 along the branch line D. It can slide only in the direction.

  The cam piece 29 will be described in more detail. The cam piece 29 is always rotated in a fixed direction (clockwise in FIG. 6) about the support shaft 29a by, for example, a torsion spring (not shown). It is so energized. Further, the facing surface 29b facing the stopper piece 28 is shaped so that the distance between the facing surface 29b and the support shaft 29a gradually changes. In FIG. 6, when the cam piece 29 is rotated to the solid line position by its urging, the closest distance between the facing surface 29 b and the stopper piece 28 is gradually narrowed. That is, when the distance between the stopper piece 28 and the facing surface 29b of the cam piece 29 is gradually reduced, the branch line D positioned therebetween is tightly clamped, and the first branch line stopper B1 is clamped and fixed to the branch line D. become. On one side surface of the cam piece 29, a knob 30 is provided to project the cam piece 29 against the biasing force.

  Magnets 31a and 31b having opposite surfaces of different polarities are embedded on the other end edge 19b side of the facing semi-finished walls 18a and 18b, both of which are exposed to the outside. Therefore, when both half-finished spheres 17a and 17b are closed, the magnets 31a and 31b are attracted to each other, and the first branch line stopper B1 maintains the spherical shape.

  In the first embodiment, the outer peripheral surface b1 of the first branch line stopper B1 and the inner peripheral surface of the storage cavity part 16 in a state where the first branch line stopper B1 is stored in the storage cavity part 16. It is necessary to reduce the friction with 16a. For this reason, the inner diameter of the storage cavity 16 is set to 110 mm, for example, while the outer diameter of the first branch line stopper B1 is set to 100 mm, for example. Further, as shown in FIG. 5, a plurality of hemispherical protrusions 32 protruding outward as friction reducing means are provided on the outer peripheral surface b1 of the first branch line stopper B1 to reduce the contact area. Thereby, friction is reduced. In this case, the protrusions 32 are provided as friction reducing means on the outer peripheral surface b1 of the first branch line stopper B1, but conversely, a plurality of hemispherical protrusions 32 are provided on the inner peripheral surface 16a of the storage cavity 16. You may make it provide. Further, the outer diameter of the first branch line stopper B1 is smaller than the inner diameter of the storage cavity portion 16, and even when the spheres having different diameters are in contact with each other without the protrusion 32, the contact area is reduced and friction is reduced. Thus, contacting the spheres having different diameters is also a friction reducing means.

The first boom prevention tool main body A1 and the first branch line stopper B1 according to the first embodiment are configured as described above. Next, a method of using the same will be described with reference to FIGS. D is a branch line installed obliquely on a utility pole (not shown), and the branch line D is formed by twisting several steel wires in a spiral shape. Therefore, first, as shown in FIG. 7, the half-cut balls 17a and 17b of the first branch line stopper B1 are opened, the knob 30 is picked, and the cam piece 29 is rotated in the direction of the arrow in FIG. . At this time, the first branch line stopper B1 is arranged so that the opposing surface 29b of the cam piece 29 faces the upstream side of the branch line D. Thereby, the space | interval of the stopper piece 28 and the opposing surface 29b of the cam piece 29 spreads so that the branch line D can be interposed. Then, the branch line D is placed on the semi-finished surface wall 18a of the semi-finished spherical body 17a on which the cam piece 29 is axially attached, and the branch line D is arranged in the concave portion 21 and between the stopper piece 28 and the cam piece 29. When the cam piece 29 is released in this state, the cam piece 29 is rotated to the stopper piece 28 side by the biasing force as shown in the direction of the arrow in FIG. 8, and the branch line D is pushed to the stopper piece 28 side to be clamped. Then, both half-finished spheres 17a and 17b are closed. Thereby, both magnets 31a and 31b adsorb | suck and hold | maintain the spherical body shape of 1st branch line stopper B1.

  Thus, in the state where the branch line D is clamped by the stopper piece 28 and the cam piece 29, the first branch line stopper B1 is firmly clamped and fixed at a predetermined height position from the ground as shown in FIG. Therefore, even if an external force is applied and the first branch line stopper B1 does not rotate along the branch line D and slides downward as it is, the shape of the facing surface 29b of the cam piece 29 rotates in its biasing direction. As the distance between the stopper piece 28 and the stopper piece 28 is reduced, the first branch line stopper B1 tries to slide downward (left side) along the branch line D as indicated by the arrow in FIG. Further, the cam piece 29 is pressed against the outer peripheral surface of the branch line D, and the branch line D is strongly clamped. This prevents the first branch line stopper B1 from slipping down.

Next, as shown in FIG. 10, the first swoop prevention device main body A1 is opened, the half-cut surface wall 11b of one half-cut cylinder 3b is applied to the branch line D from the lower side, and the first branch line stopper is placed in the recessed portion 15b. The tool B1 is accommodated, and the branch line D is arranged along the concave line part 12. In this state, as shown in FIG. 11, the other half-cylinder body 3a is covered, and each locking piece 7 is inserted into the insertion port 9, and both the male engaging members 6b, 6b are inserted into the male engaging members 6a, 6a. Engage. As a result, the branch line D is inserted into the branch line insertion hole 14, and the first boom prevention tool main body A <b> 1 is attached to the branch line D. In this state, as shown in FIG. 12, the first branch line stopper B1 is stored in the storage cavity 16, and some of the many protrusions 32 protruding on the outer peripheral surface b1 of the first branch line stopper B1 are formed. It comes into contact with the inner peripheral surface 16 a of the storage cavity 16. The contact area between the first branch line stopper B1 and the inner peripheral surface 16a of the storage cavity 16 is small, and the friction between them is extremely small. Therefore, even if the first swoop prevention device main body A1 rotates about the branch line D as the central axis, the first branch line stopper B1 is firmly fixed to the branch line D, and almost rotates about the branch line D as the central axis. There is nothing wrong. In other words, the first branch line stopper B1 is hardly affected by the rotation operation of the first swoop prevention body A1.

In this way, the utility pole branch line anti-winding tool composed of the first vine prevention tool main body A1 and the first branch line stopper B1 is used for a long period of time. Meanwhile, for example, may first helical preventer body A1 is or is given vibrations or fueled by wind said first helical preventer body A1 is rotated around axis a branch D. However, since the contact area between the outer peripheral surface b1 of the first branch line stopper B1 and the inner peripheral surface 16a of the storage cavity portion 16 is small and the friction between them is reduced, the first swoop prevention device main body A1 is winded. Even if it is beaten and rotated, the first branch line stopper B1 is not affected by it and does not rotate around the branch line D. Therefore, the first swarm prevention tool main body A1 only rotates at the position where it is mounted, and does not slide down along the branch line D. As a result, the anti-winding device for power pole branch lines according to the present invention can always exhibit the original function of preventing the power supply and can suppress the occurrence of a ground fault in the upper part of the power pole.

In addition, the first swirl prevention tool main body A1 includes a pair of semi-circular spheres 17a and 17b of the first branch line stopper B1 that can be opened and closed by magnets 31a and 31b. Since the pair of female / male engaging members 6a and 6b are provided so as to be freely opened and closed, the operation can be easily performed without requiring a separate tool for connecting and fixing.

FIGS. 13 to 16 show a second embodiment in which the first boom prevention tool main body and the second branch line stopper are used. In the second embodiment, the second branch line stopper B2 is different from the first branch line stopper B1 only in the shape of the outer peripheral surface and the presence or absence of the protrusion, and the other parts have the same structure. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Figure 13 is a perspective view showing an open state of the second branch stop, Figure 14 is a perspective view showing a state where the second branch line stop is attached to the branch line, Figure 15 is the branch line first helical preventer body FIG. 16 is a central enlarged cross-sectional view cut along a branch line of the first vine prevention main body .

  The second branch line stopper B2 is also formed of a synthetic resin having a light shielding property, for example, a black polyethylene resin. And this 2nd branch line stopper B2 is the size which can be accommodated in the said storage cavity part 16, and is a little small, and when the external shape mounts | wears with the said branch line D, it is a substantially rice ball shape which gradually narrows as it goes upstream. The upper end surface is formed into an arc surface 40. In this case, the outer shape which is the outer peripheral surface b2 of the second branch line stopper B2 is the friction reducing means. The second branch line stopper B2 is composed of a pair of half-cut bodies 41a and 41b as a pair of half-cut bodies, and one side edges 42a and 42a sandwiching the central axis are connected via a hinge part 43. At the same time, the other end edges 42b and 42b freely open and close with the hinge 43 as a center. The other end edges 42b, 42b of each open / close side are provided with an engaging recess 44 on one side, and the other has elasticity and has a locking claw 45a at the tip, which can be freely engaged with and disengaged from the engaging recess 44. An engagement convex portion 45 that engages with the projection is provided. A clamping mechanism 27 is provided on one half-shell 41a. At this time, the facing surface 29 b of the cam piece 29 faces the same side as the arc surface 40.

The first swoop prevention device main body A1 and the second branch line stopper B2 according to the second embodiment have the above-described configuration. First, as shown in FIG. 13, the half-cut shells 41a and 41b of the second branch line stopper B2 are provided. In the same manner as described above, the branch line D is inserted into the recess 21 and the branch line D is sandwiched between the cam piece 29 and the stopper piece 28. At this time, the arc surface 40 which is the upper end surface is positioned on the upstream side of the branch line D. In this state, both half-shells 41 a and 41 b are closed, and the engaging convex portion 45 is engaged with the engaging concave portion 44. Thereby, as shown in FIG. 14, 2nd branch line stopper B2 is firmly fixed, without sliding down to the branch line D of a predetermined height position from the ground.

Next, the first swirl prevention tool main body A1 is opened, the half-cut surface wall 11b of one half-cut cylinder 3b is applied to the branch line D from below, and the second branch line stopper B2 is housed in the recessed recess 15b. The branch line D is arranged along the concave line portion 12. Then, the other half-cut cylinder 3a is covered, and each locking piece 7 is inserted into the insertion port 9, and both the male engagement members 6a, 6b are engaged with both the female engagement members 6b, 6b. As a result, as shown in FIG. 15, the first anti-wound prevention tool main body A <b> 1 is attached to the branch line D in a state where the branch line D is inserted into the branch line insertion hole 14. In this state, as shown in FIG. 16, the second branch line stopper B2 is stored in the storage cavity 16, and the inner peripheral surface 16a of the storage cavity 16 is spherical, whereas the second branch line The outer peripheral surface b2 of the stopper B2 has a substantially rice ball shape in which the upstream side of the branch line D is gradually narrowed. Therefore, only the arc surface 40 at the substantially upper end surface of the outer peripheral surface b2 of the second branch line stopper B2 comes into contact with the inner peripheral surface 16a of the storage cavity 16, and also in this case, the second branch line stopper B2 and The contact area with the inner peripheral surface 16a of the storage cavity 16 is small, and the friction between them is extremely small. Therefore, even if the first swirl prevention device main body A1 rotates about the branch line D as the central axis, the second branch line stopper B2 is firmly fixed to the branch line D and does not rotate about the branch line D. . That is, the second branch line stopper B2 is hardly affected by the rotation operation of the first swoop prevention body A1.

In this way, the utility pole branch line prevention tool including the first prevention tool body A1 and the second branch stopper B2 is used over a long period of time. Also in this case, for example, the first vine prevention tool main body A1 may rotate about the branch line D as a central axis line by being beaten by wind or given vibration. However, since the contact area between the second branch line stopper B2 and the inner peripheral surface 16a of the storage cavity portion 16 is small and friction is reduced, the first anti-wound prevention tool body A1 is rotated by being blown by the wind. Even so, the second branch line stopper B2 is not affected and does not rotate. Therefore, the first swoop prevention tool main body A1 only rotates at the position where it is mounted, and does not slide down along the branch line D. As a result, the anti-winding device for power pole branch lines according to the present invention can always exhibit the original function of preventing the power supply and can suppress the occurrence of a ground fault in the upper part of the power pole.

17 thru | or FIG. 23 shows 3rd Embodiment using 2nd swine prevention tool main body A2 and 3rd branch line stopper B3. In the third embodiment, the third branch line stopper B3 differs from the first branch line stopper B1 only in the shape of the outer peripheral surface and the arrangement of the protrusions, and the other parts have the same structure. Become. In addition, the second vine prevention tool main body A2 has the same structure except for the shape of the storage cavity 60 as compared with the first vine prevention tool main body A1. Therefore, in 3rd embodiment, detailed description is abbreviate | omitted by attaching | subjecting the same site | part as 1st swarm prevention tool main body A1 and 1st branch line stopper B1 which concern on 1st embodiment, and attaching | subjecting the same number.

FIG. 17 is a perspective view showing an opened state of the third branch line stopper, and FIG. 18 is a perspective view showing an opened state of the second anti-wound prevention tool body . The third branch line stopper B3 is also formed of a synthetic resin having a light shielding property, for example, a black polyethylene resin. And this 3rd branch line stop tool B3 is a magnitude | size which can be accommodated in the accommodation cavity part 60 of 2nd swoop prevention tool main body A2 demonstrated later, and is slightly smaller than it, and an external shape is the said branch line D. When attached, it is formed into a dome shape whose upstream side is a hemispherical surface. The third branch line stopper B3 includes a pair of half-shells 53a and 53b that are divided into two equal parts on a plane including the center axis, and one side edges 54a and 54a sandwiching the center axis are hinges. The other end edges 54b and 54b are opened and closed freely with the hinge 55 as a center.

Projecting ribs 56 are provided on one side along the outer peripheral edge excluding the lower end edge on the opposed surfaces of the one half-shell body 53a and the other half-shell body 53b, and the other half-shell bodies 53a. , 53b are provided with a recessed groove portion 57 into which the protruding rib 56 is fitted. Further, a branch line insertion hole 14 is provided along the central axis, and a plurality of protrusions as friction reducing means are provided at equal intervals on the hemispherical outer peripheral surface b3 of the upper end portion at a position centered on the branch line insertion hole 14. A portion 58 is protruded. These projections 58 serve as friction reducing means. Further, a clamping mechanism 27 is provided in one half shell 53a. At this time, the opposing surface 29b of the cam piece 29 faces the same side as the hemispherical outer peripheral surface b3.

On the other hand, the second anti-winding device main body A <b> 2 includes a cylindrical protective device main body 51. The prevention device main body 51 is formed of a synthetic resin having a light shielding property, for example, a black polyethylene resin, similarly to the prevention device main body 1 according to the first embodiment. Recessed portions 59a and 59b for receiving the third branch line stopper B3 that are recessed in the respective half-cut surface walls 11a and 11b of the respective half-cut cylinders 3a and 3b are formed in a rectangular parallelepiped shape. In addition, when both the semi-cylindrical cylinders 3a and 3b are closed, the concave hollow portions 59a and 59b are matched to form the storage cavity 60 having a substantially cubic shape.

The second vine prevention tool main body A2 and the third branch line stopper B3 according to the third embodiment are configured as described above. Therefore, the half-shells 53a and 53b of the third branch line stopper B3 are opened, the branch line D is inserted into the concave strip portion 21 in the same manner as described above, and between the cam piece 29 and the stopper piece 28 in the clamping mechanism 27. The branch line D is clamped. In this state, both half-shells 53a and 53b are closed, and the protruding rib 56 is engaged with the concave groove 57. Accordingly, as shown in FIG. 19, the third branch line stopper B3 is securely clamped and fixed at a predetermined height position from the ground of the branch line D so that the hemispherical outer peripheral surface b3 faces the upstream side. Is done.

Next, the second swoop prevention body A2 is opened, the half-cut wall 11b of one half-cut cylinder 3b is applied to the branch line D from below, and the third branch line stopper B3 is housed in the concave recess 59b and recessed. The branch line D is arranged along the strip 12. Then, the other half-cut cylindrical body 3a is covered, and each locking piece 7 is inserted into each insertion port 9, and both male engaging members 6a, 6b are engaged with both male engaging members 6a, 6a. Thereby, as shown in FIG. 20, the branch line D is inserted into the branch line insertion hole 14, and the second swoop prevention body A2 is mounted. In this state, as shown in FIG. 21, the third branch line stopper B3 is stored in the storage cavity 60, and provided on the hemispherical outer peripheral surface b3 which is the upper end surface of the third branch line stopper B3. The plurality of protrusions 58 are only in contact with the inner peripheral surface 60 a (upstream side surface) of the storage cavity 60. Therefore, the contact area between the third branch line stopper B3 and the inner peripheral surface 60a of the storage cavity 60 is small, and the friction between them is extremely small. As a result, even if the second swoop prevention device main body A2 rotates about the branch line D as the central axis, the third branch line stopper B3 is firmly clamped and fixed to the branch line D, and the rotation about the branch line D is not possible. Absent. That is, the third branch line stopper B3 is hardly affected by the rotation operation of the second swoop prevention body A2.

Thus, the electric pole branch line anti-winding device composed of the second anti-winding device body A2 and the third branch wire stopper B3 is used for a long period of time. Also in this case, for example, the second anti-wound prevention tool main body A2 may be rotated about the branch line D as the central axis line by being beaten by wind or given vibration. However, since the contact area between the third branch line stopper B3 and the inner peripheral surface 60a of the storage cavity 60 is small and the friction is reduced, the second anti-wound prevention tool body A2 is rotated by being blown by the wind. Even so, the third branch stopper B3 is not affected and does not rotate. Therefore, the second anti-wound prevention tool main body A2 only rotates at the position where it is mounted, and does not slide down along the branch line D. As a result, the anti-winding device for power pole branch lines according to the present invention can always exhibit the original function of preventing the power supply and can suppress the occurrence of a ground fault in the upper part of the power pole.

22 and 23 show another example of use of the third branch line stopper B3 in the third embodiment. In this case, as described above, the third branch line stopper B3 is not housed in the housing cavity 60 of the second vine prevention tool body A2, but is disposed outside the prevention tool body 51 and downstream thereof. At the same time, it is attached to the branch line D so as to receive the second anti-winding tool main body A2 from the downstream side. Even in this case, the third branch line stopper B3 can be used. The second swirl prevention device main body A2 is inserted into the branch line D by inserting the branch line D into the branch line insertion hole 14, but the second swirl prevention device main body A2 slides along the branch line D as it is. End up. The third branch line stopper B3 has a structure in which the bottom surface c3 on the downstream side is recessed in the shape of a concave arc and is easily slid upward along the branch line D. Therefore, as shown in FIGS. 22 and 23, the front end of the push-up rod E having a predetermined length is pressed against the bottom surface c3 of the third branch stopper B3, and the third branch stopper B3 is moved along the branch line D as it is. If pushed up upwards, the second anti-wound prevention tool main body A2 is pushed up at the same time and can be arranged at a predetermined height position.

  As a result, only the third branch line stopper B3 can be applied together with the conventional main body of the protector in which the storage cavity 60 is not formed. The first and second branch line stoppers B1 and B2 are also arranged on the outer side and the downstream side of the prevention tool main bodies 1 and 51 like the third branch line stoppers B3. It can also be used alone by attaching 51 to the branch line D so as to receive 51 from below.

  The friction reducing means described above is provided with the protrusions 32 and 58 as in the first and third embodiments, and the outer shape of the second branch stopper B2 as in the second embodiment. Or may be formed into a spherical shape like the first branch line stopper B1. Furthermore, it is good also considering the external shape of 3rd branch line stopper B3 as a dome shape like 3rd embodiment. In any case, the contact area between the outer peripheral surface of the first to third branch line stoppers B1, B2, and B3 and the inner peripheral surface of the storage cavity portions 16 and 60 is small, so long as the friction is reduced as much as possible. Even with this configuration, the object of the present invention is achieved. In addition, as in the first and third embodiments, it is one of the friction reducing means to provide many protrusions 32 and 58 on the outer peripheral surfaces b1 and b3 of the first and third branch line stoppers B1 and B3. In addition, for example, a rotatable roller may be provided instead of the protrusions 32 and 58. Further, when the protrusions 32 and 58 are not provided, for example, friction is caused between the outer peripheral surfaces b1 and b3 of the first and third branch line stoppers B1 and B3 and the inner peripheral surfaces 16a and 60a of the storage cavities 16 and 60. In order to reduce, a film layer formed by metal vapor deposition may be formed.

The perspective view of a 1st swarm prevention tool main body and a 1st branch line stopper. The perspective view which shows the open state of the 1st bend prevention tool main body . The WW line expanded sectional view of FIG. The perspective view which shows the state which the 1st branch line stop tool opened. The XX line expanded sectional view of FIG. FIG. 6 is a cross-sectional view taken along line YY in FIG. 5. The perspective view which shows the state which mounts the 1st branch line stopper to a branch line. The perspective view which shows the state which mounts the 1st branch line stopper to a branch line. The perspective view in the state where the 1st branch line stopper was attached to the branch line. The perspective view which shows the state which mounts | wears a branch line with the 1st swarm prevention tool main body . The perspective view which shows the state with which the 1st swarm prevention tool main body was mounted | worn with the branch line. ZZ line expanded sectional view of FIG. The perspective view which shows the state which the 2nd branch line stopper opened. The perspective view which shows the state with which the 2nd branch line stopper was attached to the branch line. The perspective view which shows the state with which the 1st swarm prevention tool main body was mounted | worn with the branch line. The center expanded sectional view cut | disconnected along the branch line of the convolution prevention tool for electric pole branch lines . The perspective view which shows the state which the 3rd branch line stopper opened. The perspective view which shows the state which the 2nd cigarette prevention tool main body opened. The perspective view which shows the state with which the 3rd branch line stopper was attached to the branch line. The perspective view which shows the state with which the 2nd swine prevention tool main body was mounted | worn with the branch line. The center expanded sectional view cut | disconnected along the branch line of the utility pole branch line prevention tool . The perspective view which shows the other usage method of a 3rd branch line stopper. The center expanded sectional view cut | disconnected along the branch line of the utility pole branch line prevention tool .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Prevention tool main body 14 Branch line insertion hole 16 Storage cavity part 16a Inner peripheral surface 22 Branch line insertion hole 27 Clamping mechanism 32 Projection part 51 Prevention tool body 60 Storage cavity part A1 1st vine prevention tool body A2 2nd vine prevention tool Main body B1 1st branch line stopper B2 2nd branch line stopper B3 3rd branch line stopper b1 outer peripheral surface b2 outer peripheral surface b3 outer peripheral surface D branch line

Claims (3)

It consists of a pair of semi-cylindrical bodies that are divided into two on the plane including the central axis and whose cross sections are covered by a semi-finished wall, and one side edge in the direction perpendicular to the central axis of both the semi-cylindrical bodies is connected by a hinge part A cigarette in which a branch insertion hole through which a branch line is inserted along the central axis line is provided between the both half-cut surface walls in a state in which both the half-cut cylinders are closed, and a storage cavity is formed in communication with the branch line insertion hole A prevention tool main body, and a branch wire stopper that is tightly attached to the branch line so as to be positioned in a storage cavity of the anti-wound prevention tool body and prevents the movement prevention tool body from moving below the branch line; Consists of
The branch line stopper is composed of a pair of halves that are divided into two by a plane including a central axis and whose cross section is covered by a semi-finished wall, and one side edge of each of the halves in a direction perpendicular to the central axis is A branch line insertion hole is provided which is connected by a hinge part and is inserted between the both half-cut surface walls along the central axis line with the both half-cut bodies closed, and a recess communicating with the branch line insertion hole is formed. In addition, a clamping device that can be clamped to the branch line so as to be slidable in only one direction along the branch line is provided in the recess of the branch line stopper,
On the other hand, the inner diameter of the storage cavity of the main body of the anti-wound prevention tool is made larger than the outer diameter of the branch-line stopper, and the branch-line stopper having the main body of the anti-twirl prevention tool tightly attached to the branch line is placed in the storage cavity. A curl prevention tool for a power pole branch line, which is rotatable around the branch line in a state of being housed in a section. The anti-wound prevention tool for utility poles according to claim 1, wherein friction reducing means for reducing friction between the inner peripheral surface of the storage cavity and the outer peripheral surface of the branch wire stopper is provided. The anti-winding device for utility poles according to claim 1, wherein friction reducing means for reducing friction between the outer peripheral surface of the branch wire stopper and the inner peripheral surface of the housing cavity is provided.

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