JP3252124B2 - Telephone pole band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone pole band used for extending a branch line or mounting various kinds of equipment.

[0002]

2. Description of the Related Art For example, a pair of band receiving pieces are opposed to each other, and a bolt through hole provided in at least one of the band receiving pieces is constituted by a horizontally long elongated hole. The head of the tightening bolt, which is screwed with a tightening nut at the tip protruding from the bolt through hole provided in the other tightening receiving piece on the other tightening receiving piece, is shorter than the lateral width of the bolt through hole formed by the long slot. There is a rectangular power pole band having one side width longer than the vertical width and the other side width shorter than the vertical width.

[0003]

In the above-mentioned prior art, the band body can be fixed to the electric pole without removing the tightening nut from the tightening bolt on the pole, so that the tightening nut or the like is erroneously dropped during the work on the pole. Although there is an advantage that there is no fear of causing the bolt to work and the workability is rich, the bolt head and the horizontally elongated bolt through-hole are not necessarily arranged in the direction crossing each other at 90 °. Can be stably assembled to the tightening receiving piece), and the bolt may be tightened in a state where the bolt is easily detached by carelessness of the operator, and a means for avoiding this drawback has been desired.

[0004] The present invention provides one of the means.

[0005]

Means for Solving the Problems A pair of band-pieces is provided with a pair of band-pieces facing each other, and at least one of the band-pieces is provided with a laterally elongated bolt through-hole, and the other is inserted through the bolt-hole. The head of a tightening bolt having a tightening nut screwed into a tip protruding from the bolt through hole provided in the tightening receiving piece of the above is provided with one side width shorter than the horizontal width of the horizontally long bolt through hole and longer than the vertical width, and the like. In a power pole band having a rectangular shape whose one side width is shorter than the vertical width, the one of the tightening receiving pieces is provided with a horizontally elongated bulging portion, and the head is provided with the horizontally elongated bolt through hole of the bulging portion. The contact surface of the portion is configured to be inclined so as to be gradually recessed toward the center from both ends in the longitudinal direction.

[0006]

1 shows an embodiment of a power pole band according to the present invention. FIG. 1 is a cross-sectional view of a main part, FIG. 2 is a front view of a main part, and FIG. 3 is a cross-sectional view of FIG. 4 is a partially cutaway plan view, FIG. 5 is a perspective view of a tightening bolt, and FIG. 6 is a cross-sectional view of a main part of the second embodiment.

The pole A for electric poles according to the embodiment comprises a first band piece 1 and a second band piece 2 which are first and second tightening bolts 3 and 4.
And nuts 5 and 5 screwed to it and assembled together.

[0008] The first band piece 1 is composed of a main body piece 6 and a pair of tightening receiving pieces 7 and 8 connected to both ends of the main piece 6, and a center extending along the lateral direction (longitudinal direction) from the tightening receiving pieces 7 and 8 to the main piece 6. Are provided with bulging portions 9 and 10 (which reinforce the tightening receiving pieces 7 and 8), respectively.
The bulging portions 9 and 10 are provided with through holes 11 and 12 for the tightening bolts 3 and 4 on the side of the tightening receiving pieces 7 and 8, respectively.
The through hole 11 provided in the side portion 9 ′ of the bulging portion 9 of the first band piece 1 on the side of the one buckle 7 is a long head of the first buckling bolt 3. The contact surface 14 of the head 13 is formed such that the center of the through hole 11 in the lateral direction (horizontal direction) has the least amount of swelling. The through-hole 11 has an inclined shape that gradually indents from both ends in the longitudinal direction in the direction of the center 14 a (partial direction corresponding to the through-hole 12 provided in the tightening receiving piece 8 of the second band 2). A projecting piece 15 is provided at one edge (one end in the longitudinal direction) of the tightening receiving piece 7 to protrude from the contact surface 14.

[0009] The second band piece 2 is, similarly to the first band piece 1, formed by connecting fastening receiving pieces 8, 8 at both ends of a main body piece 16.
In the center along the lateral direction (longitudinal direction) from the tightening receiving piece 8 to the main body piece 16, the bulging portion 10 and the first tightening bolt 3 are arranged similarly to the other tightening receiving piece 8 side of the first band piece 1. Alternatively, a through hole 12 through which the second tightening bolt 4 passes is provided.

Thus, the second tightening bolt 4 is inserted through the through holes 12 into the respective tightening receiving pieces 8 of the first band piece 1 and the second band piece 2, and a tightening nut is attached to the tip of the bolt. 5 is loosely screwed and the first and second band pieces 1 and 2 are connected with the second tightening bolt 4, and the first tightening piece is inserted into the through hole 12 of the other tightening receiving piece 8 of the second band piece 2. Bolt 3
The first tightening bolt 3 is attached to the second band piece 2 by screwing the tightening nut 5 to the end thereof, and then one tightening receiving piece 7 of the first band piece 1 and the second tightening bolt 4 The band A is combined with the telephone pole D so as to pass between the fastening piece 8 of the second band piece 2 and the head 13 through the through hole 11 on the first band piece 1 side. 7, the first tightening bolt 4 is rotated by 90 ° to tighten the tightening nut 12, and the bolt head 13 is prevented from rotating together with the tightening nut 12 by the presence of the protruding piece 15. The inclined surface 14 which is the position closest to the tightening receiving piece 8 of the two bands 1
The telephone pole band A is fixed to the telephone pole D by being fixed at the center 14a of the telephone pole.

The second embodiment shown in FIG. 6 is different from the first embodiment only in that the projection 15 is omitted, and the other points are the same as those in the first embodiment, so that the description is omitted.

As described above, the protruding piece 15 fulfills the function of restricting co-rotation (depending on the case), but when the bolt head 13 partially overlaps with the protruding piece 15, the protruding piece 15 It can be determined that the locking state of the bolt head 13 is insufficient.

When the base end surface 13a of the bolt head 13 is made to coincide with the tapered shape of the contact surface 14 as shown in the figure, the tightening by the first tightening bolt 3 having the head 13 and the tightening nut 12 becomes stronger. It can be carried out.

The center 14a of the contact surface 14 does not necessarily mean the center of the distance, but means the portion of the through hole 11 on the axis of the through hole 12 on the second band piece 2 side.

[0015]

The present invention has the configuration described above,
It is possible to provide a power pole band that does not cause the tightening bolt or the tightening nut to drop during the work of attaching to the power pole. When tightening, the bolt head moves to the most recessed center position due to the shape of the contact surface and faces in the orthogonal direction and stays in its original position, so that a complete locking state is always obtained, and safety is excellent ing.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part.

FIG. 2 is a front view of a main part.

FIG. 3 is a sectional view taken along line xx of FIG. 1;

FIG. 4 is a partially cutaway plan view.

FIG. 5 is a perspective view of a tightening bolt.

FIG. 6 is a cross-sectional view of a main part of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Band piece 2 Band piece 3 Tightening bolt 7 Tightening receiving piece 8 Tightening receiving piece 9 Swelling portion 11 Through hole 12 Through hole 13 Head 14 Contact surface

Claims (1)

(57) [Claims] 1. A pair of band pieces which are opposed to each other, and a laterally elongated bolt through hole is formed in at least one of the tightening pieces, and the other tightening piece is penetrated through the bolt through hole. The head of a tightening bolt having a tightening nut screwed into a tip protruding from the bolt through hole provided at the one side is shorter than the lateral width of the laterally elongated bolt through hole and longer than the vertical width. In a rectangular power pole band that is shorter than the vertical width, provided in the one tightening receiving piece a horizontally long bulging portion,
A power pole band, wherein a contact surface of the head provided with the laterally elongated bolt through-hole of the bulging portion is inclined so as to be gradually recessed in a central direction from both ends in a longitudinal direction.