JP2005287144A - Implement fixing fitment for pole arm metal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a bird's damage prevention implement attached in an arm metal of an upper part of a pole is installed at an implement fixing fitment, the mounting work of this implement fixing fitment is complicated as a work for performing near a charging unit, therefore, there is a danger of an operator receiving an electric shock, a severe protector or the like is installed or it is necessary to perform an interval power interruption in advance, and to perform the installation. <P>SOLUTION: The implement fixing fitment 1, such as a bird's damage prevention implement, etc. mounted on the upper surface of the arm metal of the pole includes two opposed side plates 12, 13 in a U shape. The inner surface bottom of the U shape is mounted on the upper surface of the arm metal, the arm metal 10 for the implement fixing fitment is installed on the one side plate 12, and a holding fitment 11 is installed on the other side plate 13. Bolt insertion holes 17, 18 are provided at both the side plates. A bolt 14 is inserted into the bolt insertion hole, clamped by a nut 15. Thus, the implement fixing fitment 1 can be easily fixed to the arm metal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an appliance fixing bracket for a utility pole arm that fixes a preventer or the like that prevents birds from nesting on the upper surface of the arm attached to the upper portion of the utility pole.

  Birds nest on the upper surface of the arm attached to the upper part of the utility pole, causing short-circuit accidents and ground faults in power transmission lines and distribution lines. In order to prevent this, a windmill type or tree type bird damage prevention tool is attached.

  FIG. 6 shows a conventionally used windmill type bird harm prevention tool and a conventional instrument fixing bracket for fixing the same.

  In order to fix the bird damage prevention tool 5 to the upper surface of the arm 2 attached to the upper part of the utility pole 3, the operator climbs the utility pole or gets on the elevator of the work vehicle and rises to the vicinity of the arm 2 manually. Will do.

  First, the bolt hole 9 attached to the side plate of the conventional appliance fixing bracket 6 is aligned with the empty hole 8 of the arm metal 2 from the side surface of the arm metal 2. The conventional fixture fixture 6 is fixed by inserting a bolt through the bolt hole 9 and the vacant hole 8 and tightening with a nut.

  Next, the lower part of the main pillar 7 that supports the windmill-type bird harm prevention tool 5 is attached to the conventional appliance fixing bracket 6.

These manual operations are complicated as work performed near the live parts, and there is a risk of electric shock. Therefore, workers wear protective equipment such as high-pressure rubber gloves, and the work area is strictly covered with protective equipment such as insulation sheets. Work with protection (live line proximity work). In addition, when the method is dangerous because of the complexity of the pole, etc., the current is cut off in advance by a switch installed on the utility pole located before and after the utility pole to be operated, and the utility pole is turned off to work. (Section blackout work). In this case, temporary wiring work that bypasses the working pole is to be performed.
JP 2000-287605 A

  The bird damage prevention tool attached to the arm of the conventional power pole is fixed with a conventional fixture fixing bracket. A conventional fixture fixture is manually inserted into the armrest from the side and secured using a vacant hole in the armrest, and a bird harm prevention tool is attached thereto. These operations are performed manually after approaching the place to be mounted using a rising column or an aerial work vehicle.

  Since these operations are complicated as work performed near the live parts and there is a risk of electric shock from the workers, workers should wear protective equipment and protect the work area with protective equipment. become. In addition, depending on the status of the utility pole, manual work as described above may not be dangerous. In such a case, a section power failure will occur in advance and bypass line connection work will be performed. Is a big deal. Also, in some cases, it is not possible for local residents to understand the power outage of the main pole, and it may be necessary to cancel the construction or change the process.

  In addition, in order to attach the conventional appliance fixing bracket to the brace, a vacant hole that has been previously drilled in the brace is used. Therefore, there is also a problem that it is not possible to freely install a bird damage prevention device at a position that prevents birds from nesting.

  The present invention has been made in response to the above-mentioned problems, is a fixture for mounting on the upper surface of the armrest of the utility pole, and has a U-shape having two facing side plates, Place the upper surface of the arm metal on the bottom of the U-shaped inner surface, install the arm bracket for the fixture fixing bracket on one side plate, install the holding bracket on the other side plate, and insert the bolts on the both side plates An instrument fixing bracket can be fixed to the arm metal by providing a hole and inserting a bolt into the bolt insertion hole and tightening with a nut.

  Therefore, in the present invention, the fixture fixing bracket can be easily installed on the arm of the power pole, and the two side plates can be easily installed on the guide, and the fixture fixing bracket that can be attached with the bolt and the nut can be realized.

  Further, the present invention is characterized in that the bracket for the fixture fixing bracket is a square shape, the fixture stop hole is provided so that the position can be selected, and a fixture such as a bird harm prevention tool can be attached.

  Thereby, it became possible to select the attachment position of the bird damage prevention tool.

  Further, the present invention is characterized in that the holding metal fitting is formed in a cylindrical shape so that the instrument fixing metal fitting can be easily held by an insulating jacket.

  As a result, it is now possible to install the power pole armrest from a low position without any dangerous work or power outage.

  Furthermore, the present invention is characterized in that the bolt is a square bolt, a washer is joined to the nut, and a guide portion having no screw is provided on the nut.

  This prevents accidents such as washer or nut dropping.

  According to the present invention, the operation of attaching the fixture fixing bracket to the armrest is characterized in that it can be performed with an insulating operation rod equipped with an insulating Yatchco and a ratchet spanner. Since these insulating operation bars can be operated remotely, the operation can be safely performed from the lower side of the utility pole, and the operation can be easily performed with a stable posture.

  For this reason, it is possible to easily attach the bird harm prevention tool to the armor during energization without turning off the power of the utility pole. Since the fixture fixing bracket can be attached to the arm of the utility pole during energization, the installation of strict armor, section power failure and bypass wiring work becomes unnecessary, and the working time can be greatly shortened.

  In addition, the conventional fixture fixing brackets were attached using empty holes in the armrests. However, the fixture fixing brackets of the present invention do not use empty holes in the armrests, so they can be installed freely in places where there are empty armatures. Can do. That is, it can be installed in an effective place suitable for preventing bird damage.

  An instrument fixing bracket of a bird harm prevention tool to be attached to an arm of a power pole according to the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view of an instrument fixing bracket attached to an arm of a power pole according to the present invention and a bird damage prevention instrument attached to the instrument fixing bracket. FIG. 2 is a front view of the fixture fixing bracket. FIG. 3 shows a side plate of the fixture fixing bracket. FIG. 4 is a view of the fixture fixture from the top. FIG. 5 shows bolts and nuts for fixing the fixing device of the present invention.

  The fixture fixing bracket 1 of the bird harm prevention tool 5 attached to the arm 2 fixed to the upper part of the electric pole 3 with the belt 4 includes the fixture fixing bracket arm 10, the holding bracket 11, the side plate 12, the side plate 13, the bolt 14, and the washer 16. It consists of a nut 15.

  The fixture metal brace 10 has a square structure with a horizontal upper surface in order to attach the bird harm prevention tool 5 to the upper surface. Instrument fixing holes 19 and 20 are opened on the upper surface of the instrument fixing metal arm 10. These holes are holes for attaching the bird damage prevention tool 5 and the like, and these holes are the bird damage prevention tools. You can meet with 5th class instruments and change them freely.

  The holding metal fitting 11 has a cylindrical shape so that it can be easily grasped by an insulating jacket.

  The side plate 12 and the side plate 13 are formed so as to be opposed to each other with a width substantially equal to the width of the arm metal 2 so as to be placed on the upper surface of the arm metal 2 from above the arm metal 2 of the utility pole 3. , 13 so that the arm metal can be sandwiched from above and placed on the arm metal 2 stably. Further, since the center of gravity of the fixture fixing bracket 1 is made lower than the horizontal center position of the arm bracket 2, the two side plates 12 and 13 of the fixture fixing bracket protrude to the lower portion of the side wall of the arm bracket 2. become. Bolt insertion holes 17 and 18 are opened in the protruding both side plates 12 and 13 and placed on the upper surface of the arm metal 2 in a stable state so that the fixing device 1 does not roll over when being attached to the arm metal 2. Can do.

  The bolt 14 uses a square bolt, and the bolt insertion hole 17 has a square shape. The bolt 14 is inserted into this hole, the nut 15 is attached to the bolt screw portion 22 of the bolt 14, and the bolt 15 is rotated even if the nut 15 is rotated. 14 is prevented from turning. Further, the bolt 14 has a sufficient length that allows the nut 15 to be tightened in a state of being sandwiched by using an insulating jacket.

  For example, the length of the nut 15 is 30 mm, and the hole portion formed in the nut 15 is made up of a nut screw portion 23 and a guide portion 24 without a screw, and the length of the guide portion 24 is 20 mm. . When the nut 15 is rotated and tightened by using a ratchet wrench equipped on the insulating operation rod, the bolt 14 has a length and shape sufficient to bite into the guide portion 24 of the nut 15 to prevent the nut 15 from falling. . A locking washer 16 is welded to the nut 15 to prevent dropping and the like, thereby improving workability.

  Next, a procedure for attaching the fixture fixing bracket 1 for fixing the bird damage prevention tool 5 to the arm bracket 2 of the utility pole 3 will be described.

  The bird damage prevention tool 5 is attached to the instrument fixing bracket 1 in advance.

  Next, the fixture metal fitting 1 to which the bird's damage prevention tool 5 is attached by sandwiching the holding metal fitting 11 with an insulating jacket is lifted above the armrest 2 above the utility pole 3. Then, the instrument fixing bracket 1 is installed at a predetermined location on the upper surface of the arm bracket 2 such that the two side plates 12 and 13 of the instrument fixing bracket 1 sandwich the arm bracket 2. At this time, the two side plates 12 and 13 of the fixture fixing bracket 1 protrude to the lower part of the side wall of the armrest 2.

  Subsequently, since the bolt insertion holes 17 and 18 are opened in the lower portions of the protruding side plates 12 and 13, the bolt 14 is grasped by using an insulating jacket, and the bolt 14 is passed through the bolt insertion holes 17 and 18. .

  Next, the nut 15 is inserted into the bolt screw portion 22 and tightened using an insulating operation rod equipped with a ratchet spanner. At this time, since the guide portion 24 having no screw is provided on the nut 15, it can be easily inserted into the bolt 14, and the washer 16 is welded to the nut 15 to prevent dropping and the workability is improved. Further, it is possible to prevent the nut 15 from being loosened after the mounting.

  The fixture fixing bracket attached to the arm of the electric pole according to the present invention can be used to fix an appliance that needs to be attached to the arm of the electric pole, such as an antenna of a mobile phone, in addition to fixing the bird harm prevention tool.

It is a perspective view explaining the bird damage prevention tool attached to the instrument fixing bracket and the instrument fixing bracket which were attached to the armrest of the utility pole by this invention. It is a front view explaining the instrument fixing metal fitting by this invention. It is a figure explaining the two side plates of the fixture fixing metal fitting by this invention. It is a top view explaining the fixture metal fitting by this invention. It is side surface partial sectional drawing explaining the volt | bolt and nut for fixing the fixing device of this invention. It is a perspective view of the windmill type bird harm prevention tool used conventionally and the conventional instrument fixing metal fixture which fixes this.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument fixing bracket 2 Arm metal 3 Electric pole 4 Belt 5 Bird damage prevention tool 6 Conventional instrument fixing bracket 7 Main pillar 8 Empty hole 9 Bolt hole 10 Instrument fixing bracket arm metal 11 Holding bracket 12 Side plate 13 Side plate 14 Bolt 15 Nut 16 Washer 17 Bolt insertion hole 18 Bolt insertion hole 19, 20 Instrument stop hole 21 Corner portion 22 Bolt screw portion 23 Nut screw portion 24 Guide portion

Claims (4)

  A fixture for mounting on the upper surface of the armrest of the utility pole, comprising a U-shape having two facing side plates, and placing the upper surface of the armrest on the inner bottom of the U-shape, By installing an armature for fixture fixing bracket on one side plate, installing a holding bracket on the other side plate, providing a bolt insertion hole on the both side plates, inserting a bolt into the bolt insertion hole, and tightening with a nut, An appliance fixing bracket for an electric pole armrest, wherein an appliance fixing bracket can be fixed to the armrest.   The utility pole according to claim 1, wherein the arm bracket for the fixture fixing bracket has a square shape, a fixture stop hole is provided, and a fixture such as a bird harm prevention tool can be attached to the fixture stop hole. Fixture bracket for brace.   2. The appliance fixing bracket for a utility pole arm metal according to claim 1, wherein the holding fixture is formed in a cylindrical shape so that the appliance fixing fixture can be easily held by grasping the holding fixture with an insulating jacket. 2. The appliance fixing bracket for a utility pole arm according to claim 1, wherein the bolt is a root angle bolt, a washer is joined to the nut, and a guide portion without a screw is provided on the nut.

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