JP4136803B2 - Reinforcing device for power pole brace - Google Patents

Description

[0001]
[Industrial application fields]
In order to mount equipment such as signal lamps, a reinforcing rod may be installed between the power pole and the arm metal to increase the load strength of the protruding arm metal on the power pole. The present invention relates to a reinforcing device for a utility pole brace using this reinforcing rod.
[0002]
[Prior art]
A pair of sandwiching pieces, which are arranged to be opposed to each other so that the straight portions adjacent to the bent portion of the arm metal are partially engaged with each other by projecting a cylindrical metal arm to the power pole and projecting it into a bolt There is a structure in which the distal end of a reinforcing rod whose base end side is attached to a utility pole is locked to the bolt that is fastened to each other with a nut and a clamping piece (for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 54-32468 [0004]
[Problems to be solved by the invention]
Since the conventional example has a structure in which a semicircular central piece of a clamping piece is engaged with a circular arm and tightened with a bolt and a nut, the load is applied to the tip side of the arm from which the device is suspended. The holding piece is likely to move along the arm (base direction), so that the original device installation state cannot be maintained. Therefore, the arm is bent to prevent the movement by the bent portion. . That is, in the conventional example, not only is there a restriction in use that a bent arm must be used, but also a clamping piece because a semicircular clamping piece is used to hold a circular (cross section) arm. Assembling to the brace is not always satisfactory.
[0005]
The present invention has been devised to provide a robust device as a reinforcing device using a reinforcing rod, paying attention to the disadvantages of such a conventional example.
[0006]
[Means for Solving the Problems]
A pair of connecting pieces, which are opposed to each other so as to partially engage each of the intermediate portions, are fastened to each other by a connecting bolt and a nut screwed to the intermediate portion of the arm metal protruding from the utility pole. In a reinforcing device for a power pole armor in which a tip of a reinforcing rod attached to the power pole above the arm metal is connected to the connection bolt, a center portion and a pair of side portions provided on both sides of the center portion A central piece and a fastening piece connected to the free end of the side portion of the central piece, and a slit along the boundary portion is provided at the boundary between the central portion and the side portion of the central piece. The connection piece is configured, the arm piece made of a square tube is brought into contact with the central piece of the connection piece, and the slit is brought into contact with the corner part of the arm piece, and the side portion of the central piece The pair of connecting pieces are engaged with each other while being brought into contact with each other. Than is a structure of connecting the distal end of the reinforcing rod to each of connecting bolts me only part pieces.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show an embodiment of a reinforcing device for a power pole arm according to the present invention, FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway plan view, and FIG. FIG. 4 is a partially cutaway side view of FIG.
[0008]
In the embodiment, in order to reinforce this support state, a rectangular tube-shaped arm metal 2 is protruded from the utility pole D using the first band body 1, and a signal lamp 3 is attached to and supported by the tip of the arm metal 2. 2nd and 3rd band bodies 4 and 5 are arranged on the upper side of the first band body 1 and fastened to the power pole D, and a central portion is attached to the power pole D by the second band body 4 so as to be installed horizontally on the power pole D. The distal ends of the reinforcing rods 6 with base ends attached to both ends of the flange 16 are connected to the middle part of the arm metal 2 via the connecting device 7, and between the third band body 5 and the distal end of the arm metal 2. A second reinforcing rod 8 having substantially the same configuration as that of the reinforcing rod 6 is constructed.
[0009]
The connecting device 7 is composed of a pair of connecting pieces 9 and 9 and a pair of two connecting bolts 10 and nuts 11 for combined use. The connecting piece 9 has side portions 12b and 12b on both sides of the central portion 12a. The tightening piece 13 is formed in a wing shape so as to be parallel to the central piece 12 on both sides of the groove-shaped central piece 12 constituted by the relative arrangement, that is, the free ends of the side portions 12b. is there.
[0010]
Then, the arm metal 2 is attached so that the middle part of the arm metal 2 is partially engaged with the central piece 12 in which the separation width of the side parts 12b, 12b is substantially the same as the outer diameter of the arm metal 2. The pair of connecting pieces 9 and 9 are opposed to each other, and the reinforcement 14 is interposed between the through hole 14 provided in the fastening portion pieces 13 and 13 of the opposing connecting pieces 9 and 9 and the fastening portion pieces 13 and 13. The connecting bolt 10 is passed through a ring piece 15 provided at the tip of the rod 6, and a nut 11 is screwed and fastened to the tip of the bolt 10 protruding from the through hole 14 of one fastening piece 13. The tip (ring part piece 15) of the reinforcing rod 6 attached to the end of the armband 16 is attached to the middle part of the arm metal 2 via the connecting device 7.
[0011]
In addition, a slit 17 is provided along the boundary portion (corner portion) between the side portions 12b, 12b of the central piece 12 of the connecting piece 9 and the central portion 12a. When the opposing tightening pieces 13 and 13 are fastened with the connecting bolt 10 and the nut 11, the connecting piece 9 is bent in contact with the corner of the arm metal 2 at the boundary portion where the slit 17 is provided, and the central piece 12. The side portion 12b is pressed against the arm metal 2 to clamp the arm metal 2 to increase the frictional resistance, and the movement of the connection device 7, that is, the connection piece 9 along the arm metal 2 is restricted as much as possible. .
[0012]
The reinforcing rod 6 has a length adjusting device (turn buckle) 18 interposed in the vicinity of the power pole D side in the middle so that the assembly error can be corrected (the same applies to the second reinforcing rod 8). A ring piece provided on the side in the same manner as the ring piece 15 is inserted into the arm rod (comprising a rectangular cylinder) 16 and attached to the arm rod 16 with a bolt 19 and a nut.
[0013]
【The invention's effect】
Since the present invention is configured as described above, when the connection piece is fastened to the arm metal using the connection bolt and the nut screwed to the connection bolt, the side of the connection piece, that is, the central piece is in good contact with the arm metal. Thus, the contact resistance can be increased, and therefore, the connecting piece is difficult to move along the arm metal, so that it is possible to provide a robust apparatus that can maintain the original state as the arm metal reinforcing device.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view.
FIG. 2 is a partially cutaway plan view.
FIG. 3 is a partially cutaway plan view of the main part.
FIG. 4 is a partially cutaway side view of FIG.
[Explanation of symbols]
2 Armor 9 Connection piece 10 Connection bolt 11 Central piece 13 Tightening piece 17 Slit

Claims (1)

A pair of connecting pieces, which are opposed to each other so as to partially engage each of the intermediate portions, are fastened to each other by a connecting bolt and a nut screwed to the intermediate portion of the arm metal protruding from the utility pole. In a reinforcing device for a power pole armor in which a tip of a reinforcing rod attached to the power pole above the arm metal is connected to the connection bolt, a center portion and a pair of side portions provided on both sides of the center portion A central piece and a fastening piece connected to the free end of the side portion of the central piece, and a slit along the boundary portion is provided at the boundary between the central portion and the side portion of the central piece. The connection piece is configured, the arm piece made of a square tube is brought into contact with the central piece of the connection piece, and the slit is brought into contact with the corner part of the arm piece, and the side portion of the central piece The pair of connecting pieces are engaged with each other while being brought into contact with each other. Only part reinforcement device electric pole for a cross-arm, each respective connecting bolts I was connected to the distal end of the reinforcing rod to pieces.

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