JP5709078B2 - Winding prevention device for utility pole branch line - Google Patents

Description

  The present invention relates to a power pole branch line anti-winding device that prevents a vine such as ivy from rolling up by being attached to a branch line that supports the power pole.

In locations where vines such as ivy grow thickly, the vines may roll up to the branch line that is slanted from the ground to support the utility pole, reaching the top of the utility pole, causing a ground fault There was a risk of causing it.
As described above, Patent Documents 1 and 2 show prevention devices for preventing the vines from being wound on the branch lines. The prevention device for the vines shown in Patent Document 1 has a cylindrical shape. A strong clamping force can be obtained for the branch line by providing a claw member for clamping the branch line in the prevention tool main body. In addition, the anti-wound device shown in Patent Document 2 has a structure in which a fixing body attached to a branch line is wrapped by a prevention tool main body, and the fixing body and the prevention tool main body are integrated after inclusion. However, since these branching prevention devices usually consist of ropes in which a plurality of steel wires are spirally twisted, if the rotational torque is applied to the main body of the prevention device by the wind, There was a possibility that the main body of the preventive device would rotate along the axis and slip off.

Moreover, the anti-wound device shown in Patent Document 3 below is configured such that a U-bolt is fixed to a branch line, and a cylindrical prevention device main body is supported on the upper portion of the U-bolt. The anti-wound device shown in Document 4 is configured to support a plate-shaped prevention tool body, and in the configurations shown in these patent documents, the prevention tool body can rotate freely, so that prevention is achieved. Since the rotational torque of the tool body is not transmitted to a fixed body such as a U-bolt and the fixed body does not rotate, the above-described sliding is prevented.
Further, the anti-wound device shown in the following Patent Document 5 is provided with a fixing body to the branch line in the prevention device body, and the prevention device body is rotatably attached to the outer periphery of the fixing body, and the prevention device is prevented by wind. Even if the tool body rotates, the fixed body is not subjected to rotational torque, and slipping is prevented.

No. 7-38585 Japanese Utility Model Publication No. 3-20663 Japanese Utility Model Publication No.57-198252 Utility Model Registration No. 3123795 JP 2009-118751 A

However, since the prevention device shown in Patent Documents 3 and 4 is a separate body in which the prevention device main body is separated from the fixed body, only the prevention device body receives strong winds and rises along the branch line. There was a risk of unexpected accidents or damage to the function of preventing the spread of cigarettes. This is because, on flat ground, the inclination angle of the branch line stretched to the utility pole is maintained at about 60 degrees with respect to the horizontal plane, but on a steep slope as shown in FIG. Since the inclination angle of the branch line b that supports a becomes nearly horizontal, there is a problem that even if the prevention tool body d is supported by the fixed body c, only the prevention tool body d is easy to climb.
In addition, because the rainwater constantly infiltrates along the branch line into the clamping mechanism composed of the claw member, the movement of the claw member is impaired by the rust generated in the metal member, or the rubber covering the claw member is deteriorated. Therefore, there is a concern that the ability to pinch the branch line may be impaired, so a solution means that is easy to maintain has been demanded.
The present invention is intended to solve all the problems such as the problem that such a body of the preventive device slides down or rises due to strong wind, the problem of maintenance due to deterioration over time, and the problem of installation work. is there.

In order to achieve the above-mentioned object, the device for preventing a winding prevention for a utility pole according to the present invention is provided with a pair of semi-cylindrical bodies that can be opened and closed via a hinge part on one side edge and relative to both semi-cylindrical bodies. And a pinching mechanism for sandwiching and fixing the branch line while a pair of halves are provided so as to be openable and closable via a hinge portion on one side edge. Is formed by a fixed body, and the main body of the prevention tool is rotatably connected to the fixed body.
As a result, the main body of the preventive device does not slide down or rise due to the strong wind.

Further, the present invention provides the above-described device for preventing the spread of a pole for a utility pole, wherein a protruding portion with a bulging tip is formed at one end portion of the prevention tool main body, and the fixed body has a cylindrical connecting portion for holding the protruding portion from the outside. By forming, the prevention tool main body is rotatably connected to the fixed body.
This facilitates maintenance of the fixed body.

  According to the anti-winding device for utility poles according to the present invention, there is no problem that the main body of the prevention tool slides down or rises along the branch line. In addition, maintenance of the fixed body is facilitated. Furthermore, the installation work of this anti-wound device is facilitated.

The perspective view of the open state of the prevention tool main body of the convolution prevention apparatus for utility poles which concerns on this invention. The perspective view of the open state of the fixing body of the convolution prevention apparatus for utility pole branches which concerns on this invention. The perspective view which showed the connection state of the fixing body of the conical prevention apparatus for utility poles which concerns on this invention, and a prevention tool main body. The side view of the state which attached the winding prevention apparatus for utility pole branch lines which concerns on this invention to the branch line. AA line sectional view of Drawing 4. BB sectional drawing of FIG. CC sectional view taken on the line of FIG. The DD sectional view taken on the line of FIG. EE sectional view taken on the line of FIG. Explanatory drawing which shows the tension state of the branch line in an inclined ground.

  Next, a first embodiment of a utility pole branch line prevention apparatus according to the present invention will be described with reference to FIGS. As shown in the open state in FIG. 1, the protective device main body 1 is formed by blow molding a weather-resistant synthetic resin so that the semi-cylindrical body 1a and the semi-cylindrical body 1b are thin on one side edge. It is integrally formed through the hinge part 2 of. Concave grooves 4a and 4b for guiding branch lines to be described later are formed on the center lines of the inner surfaces 3a and 3b of the semi-cylindrical bodies 1a and 1b, and the side opposite to the hinge part 2 of the semi-cylindrical body 1a. An engaging portion 5a is recessed in the edge, and an engaging claw 5b protrudes from the edge on the side opposite to the hinge portion 2 of the semi-cylindrical body 1b. Further, a protrusion 6a is formed around the inner surface 3a of the semi-cylindrical body 1a, and a recess 6b into which the protrusion 6a is fitted is formed around the inner surface 3b of the semi-cylindrical body 1b. Reference numerals 7a and 7b denote rotational braking members made of an elastic material such as rubber provided in a part of the concave grooves 4a and 4b. 8a is a guide piece protruding from one side edge of the groove 4a, and 8b is a recess formed at one side edge of the groove 4b so that the guide piece can be accommodated. Further, half-cut mushroom-like protrusions 9a and 9b having a rounded tip are integrally formed at one end of the semi-cylindrical bodies 1a and 1b.

  For this reason, the hinge part 2 is bent, the opposing inner surfaces 3a and 3b are joined together, the protrusion 6a is fitted into the recess 6b, and the engaging claw 5a is engaged with the engaging part 5b. The semi-cylindrical bodies 1a and 1b become a cylindrical prevention device main body 1. In addition, the diameter W and length L of this prevention tool main body 1 are made into the dimension (for example, diameter 180mm, length about 1200mm) which a vine does not wind.

  Also, as shown in the open state in FIG. 2, the fixed body 20 is formed by injection molding a synthetic resin having weather resistance to form a pair of half-cylindrical halves 20a and 20b, By inserting the support shaft 22 into hinge portions 21a and 21b formed at one side edge of the half body 20a and the half body 20b, the half body 20a and the half body 20b can be opened and closed. Connected to Grooves 23a and 23b for guiding the branch lines are formed on the inner surface center lines of the halves 20a and 20b, and the engaging part 24a is recessed at the side edge opposite to the hinge part 21a of the halves 20a. An engaging claw 24b projects from the side edge opposite to the hinge portion 21b of the halved body 20b. Further, as shown in FIG. 3, a cylindrical connection having an inner diameter capable of holding the protruding portions 9a and 9b of the main body 1 from the outside at one end of the half body 20a and the half body 20b. The portions 25a and 25b are integrally formed. Skirt portions 26a and 26b are integrally formed at the other end portions of the half body 20a and the half body 20b. Reference numeral 27 denotes a reinforcing rib formed in the half body 20a and the half body 20b.

  Reference numeral 30 denotes a clamping mechanism provided in one half body 20a. The clamping mechanism 30 stands from one side of the center line and has an upright wall in which an elastic material 31 such as rubber is stretched. 32 and a cam-shaped claw member 34 rotatably supported by a bolt 33 on the opposite side of the upright wall 32 with the center line interposed therebetween, and the surface of the claw member 34 is also made of rubber or the like. The anti-slip elastic member 35 is stretched, and the claw member 34 is urged in the direction of the arrow shown in FIG. 9 to press the claw member 34 against the surface of the standing wall 32 (not shown). ) Is provided in the claw member 34. Reference numeral 37 denotes a finger gripper projecting from one side of the claw member 34.

  This convolution prevention device prevents the protrusions 9a, 9b from being inclined downward by matching the branch line 40 with the concave grooves 4a, 4b and engaging the engaging claws 5b with the engaging portions 5a. The tool body 1 is attached around the branch line 40. At this time, the semi-cylindrical body 1a and the semi-cylindrical body 1b are closed without a gap by fitting the protrusions 6a to the recesses 6b. Further, the guide piece 8a abuts on the branch line 40, thereby preventing the shift of the branch line 40. In addition, when the semi-cylindrical body 1a and the semi-cylindrical body 1b are closed, the rotation braking members 7a and 7b are in contact with the outer periphery of the branch line 40, so that the rotation of the prevention device main body 1 due to strong wind is suppressed to some extent. I try to do it.

  After the prevention device main body 1 is attached to the branch line 40 in this way, a finger is put on the knob portion 37 of the claw member 34 and the claw member 34 is rotated so as to be separated from the surface of the standing wall 32, and the standing wall 32 and the By releasing the finger from the knob 37 through the branch line 40 at a distance from the claw member 34, the claw member 34 is pressed against the branch line 40 by the elasticity of the winding spring, and the branch line is formed between the standing wall 32 and the claw member 34. 40 is pinched. At this time, the cylindrical connecting portion 25a is made to cover the outer circumferences of the protruding portions 9a and 9b of the prevention device main body 1, and the branch line 40 is made to match the concave grooves 23a and 23b. The claw member 34 is formed in a cam shape, and the distance between the outer periphery of the claw member 34 and the standing wall 32 becomes narrower as it rotates in the direction of the arrow, so that the branch line 40 is firmly attached and fixed. The body 20 is prevented from sliding down. And while connecting the cylindrical connection part 25b on the outer periphery of protrusion part 9a, 9b, the engagement nail | claw 24b is engaged with the engagement part 24a, and the half parts 20a and 20b are united. Thus, the protruding portions 9a and 9b are held from the outside by the cylindrical connecting portions 25a and 25b, and the fixed body 20 and the prevention device main body 1 are rotatably connected.

  Also, as shown in FIG. 8, a gap 28 is formed outside the engaging portion 24a, and the engaging claw 24b is curved within the elastic limit with a tool such as a finger or a screwdriver. In this way, the engagement portion 24a can be released (released) even if it is once engaged.

  In the anti-wound device attached to the branch line 40 in this way, the fixed body 20 is firmly fixed to the branch line 40, and even if the prevention tool main body 1 rotates due to strong wind, the rotational torque is transmitted to the fixed body 20. Therefore, the fixed body 20 does not rotate and slide down. Even if buoyancy is applied to the main body 1 of the preventive device due to strong winds, the main body 1 of the preventive device is connected to the fixed body 20 by the protruding portions 9a and 9b. Without such a thing, the prevention tool main body 1 is always hold | maintained at suitable height, and it can prevent that a vine plant rolls up the branch line 40. FIG.

  Further, at the time of required maintenance, the clamping mechanism 30 in the fixed body 20 can be easily opened by releasing the engagement between the engagement claw 24b and the engagement portion 24a and opening the halves 20a and 20b as described above. Can be checked. That is, since the cylindrical connecting portions 25a and 25b of the fixed body 20 hold the projecting portions 9a and 9b from the outside, the preventer main body 1 remains closed even if the preventer main body 1 is not opened each time. In this state, only the fixed body 20 is opened, the internal clamping mechanism 30 can be simply inspected, and repair or parts replacement can be performed as necessary. For this reason, the maintenance work is remarkably facilitated. The pinching mechanism 30 can be easily attached to the branch line 40 by simply rotating the claw member 34 by placing a finger on the knob 37 and also removing the claw member 34 by hooking the finger on the knob 37 when removing it. Since the clamped state can be easily released simply by rotating, and the attachment and removal are easy, the maintenance becomes easier.

DESCRIPTION OF SYMBOLS 1 Prevention tool main body 1a, 1b Semi-cylindrical body 2 Hinge part 3a, 3b Inner surface 4a, 4b Groove 5a Engagement part 5b Engagement claw 9a, 9b Protrusion part
2 0 Fixed body 20a, 20b Half body 21a, 21b Hinge part 23a, 23b Groove 24a Engagement part 24b Engagement claw 25a, 25b Cylindrical connection part
3 0 Clamping mechanism 32 Standing wall 34 Claw member 40 Branch line

Claims (1)

A pair of semi-cylindrical bodies that can be opened and closed via a hinge on one side edge, and a pair of prevention tool bodies in which concave grooves that guide branch lines are formed on the opposing inner surfaces of both semi-cylindrical bodies; The halved body is provided so as to be openable and closable via a hinge part on one side edge, and includes a fixed body in which a clamping mechanism for clamping and fixing a branch line is provided,
A protrusion with a bulging tip is formed at one end of the prevention tool body, and a cylindrical connecting part that holds the protrusion from the outside is formed on the fixed body, whereby the prevention tool body rotates on the fixed body. helical prevention device for a utility pole branch, characterized in that it has to be rotatably connected.

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