JPH0310291Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cross arm attachment device for utility poles.

A tightening piece of the band body has through holes arranged in a row in the band center piece, bolts are passed through the appropriate through holes, and tightening pieces are fastened to both ends of the band center piece, and a pair of horizontal rods that are parallel to each other. A pair of anti-tilting materials having a V-shaped cross section on one side are fixed to each other by passing them at right angles, and the anti-tilting materials of the arm support bracket are bolted to each other and attached to the utility pole surface. A utility pole arm mounting device in which a arm is clamped between the two arms and bolted to the anti-tilt member is known, for example, as disclosed in Japanese Utility Model Publication No. 54-20821.

In this known device, the cross arm is supported by being sandwiched between a pair of horizontal rods, but the gap between the horizontal rods for holding the cross arm is formed by placing the arm on the telephone pole. In order to facilitate the work when inserting gold into the gap, the width of the cross arm is made in advance to be larger than the basic dimension in consideration of manufacturing errors in the width of the cross arm.

Therefore, it is unavoidable that a gap will be created between the clamped arm arm and the horizontal rod, but the arm arm, which is usually called a yari-dashi, is supported in a cantilevered manner by the arm arm support hardware. (maximum protrusion width of the cross arm is about 1.5 m), the existence of the above-mentioned gap causes the tip of the free end of the cross arm to slide down due to its own weight or the weight of equipment such as an insulator attached to the cross arm, which is aesthetically pleasing. Not only is there no, but
If a separate electric wire is installed at the bottom of the arms, the electric wire may be approached to a distance less than the legal wire separation distance, and dangers such as magnetic disturbances are likely to occur.

The present invention provides a piece of space in the above-mentioned gap to prevent the free end of the arm from falling down, to obtain an aesthetically pleasing mounting condition of the arm, and to avoid dangers such as magnetic interference. This is the purpose.

In the drawings, FIGS. 1 to 3 show a first embodiment, and FIGS. 4 to 6 show a second embodiment.

Reference numeral 11 designates a band center piece, in which through holes 12, 12, . While constituting the band body A, a pair of cross-sections 1 parallel to each other,
A pair of anti-tilting members 15 having a V-shaped cross section are crossed at right angles on one side 1a of 1 and fixed to each other to form arm support hardware B, and the anti-tilt members 15 of arm arm support hardware B
and the tightening pieces 14 of the band body A are tightened together with the bolts 16 and attached to the utility pole D, and the other piece 1 of the horizontal bars 1 and 1 is attached.
The arm 2 is mounted between b and 1b, and the arm 2 is tightened to the anti-tilt member 15 with the bolt 3 and nut 5, and the arm 2 is installed in the first embodiment. Using the L-shaped spacer piece 6 shown in FIG.
The through-bolt 3 is inserted between the arm 2 and the anti-tilting member 15 so as to pass through the through-hole 7 provided in a, and the other piece 6b is arranged between the arm 2 and the piece 1b of the horizontal bar. As shown in the figure, the pieces 1b are arranged diagonally to each other.

In addition, the one shown in FIGS. 4 to 6 uses a spacer piece 9 with a long hole 8 as shown in FIG.
The pair of spacer pieces 9, 9 are arranged diagonally as shown in FIG. 4, and the U-shaped bolt 3' is passed through the elongated hole 8 of the spacer piece 9 to attach the armrest 2. be.

The elongated hole 8 provided in the spacer piece 9 of the second embodiment is made to correspond to the diameter of the cross arm 2.

17 is an insulator for supporting electric wires, and 18 is an electric wire.

Since the present invention has the above-mentioned structure, the interposition of the spacer piece easily and reliably prevents the tip of the free end of the arm from slipping down, resulting in an aesthetically pleasing arm mounting condition. The separation distance can also be kept within legal limits and is safe.

[Brief explanation of the drawing]

The drawings show an embodiment of the utility pole arm attachment device according to the present invention, and FIGS. 1 to 3 show the first embodiment, with FIG. 1 being a front view, FIG. 2 being a side view, and FIG. is a perspective view of the spacer piece, FIGS. 4 to 6 show the second embodiment, FIG. 4 is a front view, and FIG. 5 is a side view.
FIG. 6 is a perspective view of the spacer piece. 1... Horizontal rod, 1a... One piece of horizontal rod, 1b... Other piece of horizontal rod, 2... Bracelet, 3... Bolt, 6... Spacer piece, 3'... U-shaped bolt, 9 ...Spacer piece, 11...Band center piece, 12...Through hole, 1
3... Bolt, 14... Tightening piece, 15... Anti-tilting material, A... Band body, B... Bracelet support hardware, D...
...Electric pole.

Claims (1)

[Scope of utility model registration request] A tightening piece of a band body in which through-holes are arranged in a row in the band center piece, bolts are passed through the appropriate through-holes, and tightening pieces are tightened at both ends of the band center piece, and a pair of horizontal rods with cross-sections parallel to each other. A pair of anti-tilting materials having a V-shaped cross section on one side are fixed to each other by passing them at right angles, and the anti-tilting materials of the arm support bracket are bolted to each other and attached to the utility pole surface. An arm for utility poles in which a arm is interposed between the other pieces, a spacer piece is interposed at an appropriate position between the arm and the other side beam, and the arm is fixed by bolting to the anti-tilting member. Mounting device.