JP3044717U - Supporting fittings for telephone pole communication devices, etc. - Google Patents

Abstract

(57) [Summary] [Problem] It is not necessary to perform any special work on the cable itself, and it is possible to reliably support a communication device or the like without obstructing the ascending pole, and furthermore, the suspension angle of the cable with respect to the telephone pole. The mounting angle can be adjusted according to the requirements. SOLUTION: A base end 7A of a crosspiece 7 to which a communication device or the like is attached is connected to a fixing bracket 6 by a pin 16 so as to be rotatable in a vertical direction. The angle at which the arm arm 7 is attached is substantially matched with the suspension angle θ of the cable 2 in the steady state by the angle adjusting mechanism 17. The angle adjusting mechanism 17 includes a plurality of bolt holes 18 formed in the fixture 6 and these bolt holes 18.
A plurality of long holes 19 formed in the crosspiece 7 corresponding to the above, one of the plurality of long holes 19 and the plurality of bolt holes 18 having an optimal positional relationship and a bolt corresponding to the long hole. And a bolt 20 inserted into the hole to allow a slight upward rotation of the arm bar 7. Thus, when the cable 2 receives a force from below due to wind or the like, the arm 7 rotates upward, and the force applied to the arm 7 is reduced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a support fixture for a telephone pole communication device or the like used when the communication device or the like cannot be directly fixed to the telephone pole when the communication device or the like is mounted on the telephone pole.

[0002]

[Prior art]

 Conventionally, when installing a communication device or the like at a certain distance from a power pole, the arm is fixed to the power pole, and the communication device or the like is attached to the arm or the communication device or the like is suspended from the cable itself. Here, the communication device for utility poles and the like in the present invention covers devices such as a PHS radio device and a subscriber line relay device.

[0003]

[Problems to be solved by the invention]

 However, in the conventional structure in which the arm is fixed to the pole and a communication device or the like is mounted on the arm, the arm is normally mounted in a direction orthogonal to the cable attached to the pole, so that the pole is originally attached to the pole. When maintaining the installed communication cables, power line equipment, etc., there was a problem that the work would be an obstacle to ascending poles and reduce workability in terms of maintenance. In addition, there was a problem that an extra fixing band for fixing the arm bar to the utility pole had to be attached.

On the other hand, in a structure in which a communication device or the like is suspended from the cable itself, it is necessary to modify the cable itself, and the weight of the communication device and the like is added to the cable, so that the tensile strength of the cable itself and the tensile strength applied to the telephone pole are increased. It was necessary to reconsider the equalization of the size. Therefore, the weight of the communication device and the like is restricted.

[0005] The present invention has been made to solve the above-mentioned conventional problems. The purpose of the present invention is to eliminate the need for any special work on the cable itself, and to provide an obstacle for ascending columns. It is an object of the present invention to provide a support fixture for a utility pole communication device or the like which can securely support a communication device or the like and can adjust an attachment angle in accordance with a suspension angle of the cable with respect to the utility pole. Another object of the present invention is to provide a support bracket for a telephone pole communication device or the like that can also be used as a cable fixing band for a telephone pole and can be attached without increasing the number of fixed bands.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a fixing bracket fixed to a power pole, and a direction in which a cable supported by the pole is pivotally supported in a vertically rotatable manner at a base end thereof and is attached to the power pole. And an arm adjusting means for adjusting a mounting angle of the arm according to a suspension angle of the cable with respect to a utility pole in a steady state. In the present invention, since the crosspieces extend in the direction in which the cable is stretched, there is no obstacle to the ascending pole. The angle adjustment mechanism adjusts the mounting angle of the arm bar in accordance with the suspension angle of the cable to the utility pole. Since the communication device, etc., is fixed to the arm, no load is imposed on the cable.

In the present invention, in the above-mentioned invention, the angle adjusting mechanism may be provided with a plurality of bolts which are arranged side by side on one of the fixing bracket and the arm on the same circumference around the rotation center of the arm. And a plurality of long holes provided on the other side corresponding to the plurality of bolt holes, and one of the plurality of long holes and the plurality of bolt holes having an optimal positional relationship. And a bolt inserted into a bolt hole corresponding to the elongated hole. In the present invention, the bolts are set to the suspension angle of the cable by inserting the bolt through the elongated hole and the bolt hole that are in the optimal positional relationship in the steady state of the cable. The relative positions of the long hole where the bolt is inserted and the hole for the bolt are such that the mounting angle of the arm is the same as the suspension angle of the cable, but without tightening the bolt with the bolt just inserted. And the weight of the arm bar is set so as to be supported by the angle. By doing so, the brace does not rotate below the suspension angle, but can rotate upward. That is, if the arm is fixed to the fixing bracket and the cable is fixed to the arm, when the cable is pulled up by wind or the like, a force having the same magnitude as the lifting force is applied to the arm. On the other hand, if the arm is configured to be able to rotate upward as in the present invention, the arm will rotate without opposing the lifting force applied from the cable, and the lifting force applied to the arm will be reduced. Therefore, deformation of the arms can be prevented, and the load on the communication device and the like due to the deformation can be reduced. Here, in the present invention, the steady state of the cable means a state in which the cable is stretched between utility poles in a natural state and the suspension angle is maintained.

[0008]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a support bracket for a telephone pole communication device or the like according to the present invention, FIG. 2 is a side view of a main part of the support bracket, and FIG. 3 is a line III-III in FIG. FIGS. 4 (a) and 4 (b) are views showing examples of supporting a cable by crosspieces, and FIGS. 5 (a) and 5 (b) are views showing examples of attaching a communication device to the crosspiece. In these figures, reference numeral 1 denotes a power pole shared by a power line (not shown) and a communication cable 2, and the communication cable 2 is attached to a part of a peripheral surface of the power pole 1. The communication cable 2 is suspended by the support wire 3 over substantially the entire length.

The support bracket 4 includes a fixing bracket 6 fixed to the utility pole 1 by a fixing band 5, and a brace 7 supporting the cable 2. The fixing bracket 6 is formed in a triangular plate-like body as shown in FIG.

The arm 7 is formed to be long in the direction in which the cable 2 is stretched by a metal plate or the like, and the upper corner of the base end 7 A is pivotally supported on the fixing bracket 6 by a pin 16 so as to be rotatable in the vertical direction. The angle at which the cable 2 is attached to the fixing bracket 6 is adjusted by the angle adjusting mechanism 17 described later when the support bracket 4 is attached so as to substantially match the suspension angle θ of the cable 2 in the steady state. The arm brace 7 is attached to the vicinity of the power pole of the cable 2 from below, and a communication device 9 or the like is attached near the tip 7B.

As shown in FIG. 2 and FIG. 4A, when the cable 2 is stretched so as to pass through the center of the power pole 1 as shown in FIGS. Is fixed to the utility pole 1 by a fixing band 5 in a vertical state so as to be located directly below the cable 2, and the upper surface of the arm 7 is attached to the cable portion near the utility pole from below to be the same as the suspension angle θ of the cable 2. The angle is set, and the cable 2 is fixed to the upper surface of the arm 7. The cable 2 is not fixed to a rigid but fixed to be slightly displaceable in the vertical and horizontal directions. In this case, rising walls 11, 12 are integrally erected on both sides of the upper surface of the arm 7, and the cable 2 is inserted into a cable groove 13 formed by the rising walls 11, 12 and the upper surface of the arm 7. It may be fixed softly through On the other hand, when the cable 2 is stretched out of the center of the utility pole 1 as shown in FIG. 4 (b), the support bracket 4 is attached to the utility pole 1 so as to be located on the side of the cable 2, The end of the side of the cable side of 7 is attached to the cable 2 and the cable 2 is fixed to the arm arm 7 so as to be slightly displaceable in the vertical and horizontal directions as described above.

The angle adjusting mechanism 17 includes a plurality of bolts formed at required intervals on the same circumference around the rotation center (pin 16) of the arm bar 7 below the fixing bracket 6. Holes 18 (18a to 18i), a plurality of elongated holes 19 (19a, 19b, 19c) formed below the base end 7A of the arm bar 7 corresponding to the bolt holes 18, and It comprises an elongated hole 19, an elongated hole 19 having an optimal positional relationship among the plurality of bolt holes 18, a bolt 20 inserted into the bolt hole 18, and a double nut 21 screwed into the bolt 20. I have. Although the through hole into which the bolt 20 is inserted is shown as the bolt hole 18, the present invention is not limited to this, and may be a screw hole into which the bolt 20 is screwed. The elongated hole 19 is formed in an arc shape with the pin 16 as a center, and allows the bolt 20 to relatively move. The double nut 21 is used to prevent the bolt 20 from dropping out of the bolt hole 18 and the elongated hole 19, and allows the arm 7 itself to rotate. The optimum positional relationship between the bolt hole 18 and the elongated hole 19 is the side wall of the bolt hole 18 and the elongated hole 19 opposite to the pole 1 when the cable 2 is fixed to the arm 7 at the suspension angle θ in the steady state. Means a relationship in which they approximately match. In this case, in the present embodiment, as shown in FIG. 3, the bolt hole 18c and the elongated hole 19b are in an optimal positional relationship, and the bolt 20 is inserted through these holes 18c, 19b to move the bolt arm 7 upward. Is permitted, the downward rotation is restricted, and the attachment angle of the arm 7 is made equal to the suspension angle θ of the cable 2.

Here, in the present embodiment, an example in which the bolt hole 18 is formed in the fixing bracket 6 and the elongated hole 19 is formed in the arm 7 is shown.

In the support fitting 4 having such a structure, the arm 7 extends long in the direction in which the cable 2 is stretched, so that it looks like the cable 2 in appearance. For this reason, the arm bar 7 does not protrude from the pole portion of the utility pole 1, so that there is no obstacle in maintenance of the power lines, cables and the like, and the workability can be improved. Further, since the communication device 9 is attached to the arm bar 7, no load is applied to the cable 2, and it is not necessary to reconsider the tensile strength of the cable 2 and the equalization of the tensile strength. Furthermore, when the communication device 9 is directly attached to the cable 2, it is necessary to directly process the cable main body such as cutting the cable branch and the main cable section, but this is not necessary in the present invention. Absent.

The mounting angle of the arm 7 is set by the angle adjusting mechanism 9 so as to substantially match the suspension angle θ of the cable 2 in a steady state, but a slight upward rotation is allowed. Therefore, the force for pulling up the arms 7 when the cable 2 is blown by wind or the like is reduced. That is, when the arm 7 is completely fixed to the fixing bracket 6 and the cable 2 is fixed to the arm 7, when the cable 2 receives an upward force due to wind or the like, the arm 7 has the same magnitude as this force. Receive the power of On the other hand, in the configuration in which the arm 7 can rotate upward, even if the cable 2 attempts to lift the arm 7, the cable 2 rotates upward without opposing it, so that the force applied to the arm 2 from the cable 2 is reduced. be able to. Therefore, deformation and the like of the arms 7 can be prevented.

[0016]

[Effect of the invention]

 As described above, according to the support fitting of the communication device for telephone poles and the like according to the present invention, since the communication device is attached to the arm, the communication device can be securely supported without damaging the cable. Does not protrude from the utility pole in a direction perpendicular to the direction in which the cables are stretched, so that it does not become an obstacle when ascending the pole and improves workability during maintenance of cables and the like.

Further, although the arm is held by the angle adjusting mechanism at an attachment angle substantially the same as the suspension angle in the steady state of the cable, a slight upward rotation is allowed, so that the cable is This can reduce the pulling force applied from the cable to the arm when it is swayed by the cable, and prevent deformation of the arm. Therefore, the influence on the communication device and the like can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a support bracket such as a utility pole communication device according to the present invention.

FIG. 2 is a side view of a main part of the support fitting.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIGS. 4A and 4B are diagrams illustrating examples of supporting a cable, respectively.

FIGS. 5A and 5B are diagrams illustrating examples of mounting a communication device.

[Explanation of symbols]

1 ... pole, 2 ... cable, 3 ... suspension wire, 4 ... support bracket,
5: fixing band, 6: fixing bracket, 7: arm bar, 9: communication device, etc., 16: pin, 17: angle adjusting mechanism, 18: bolt hole, 19: long hole, 20: bolt.

Claims (2)

[Utility model registration claims] 1. A fixed metal fitting fixed to a power pole, and a base end portion of the fixed metal fitting is pivotally supported in a vertically rotatable manner, and extends in a direction in which a cable attached to the power pole extends in a direction in which the cable is extended. A bracket to which a device or the like is attached, and an angle adjustment mechanism for adjusting the attachment angle of the arm to a suspension angle of the cable with respect to the utility pole in a steady state, and a support bracket for a communication device for a utility pole, etc. . 2. The supporting bracket for a telegraph pole communication device according to claim 1, wherein the angle adjusting mechanism is arranged on one of the fixing bracket and the arm on the same circumference around the rotation center of the arm. A plurality of bolt holes provided, a plurality of long holes provided on the other side corresponding to the plurality of bolt holes, and an optimal positional relationship among the plurality of long holes and the plurality of bolt holes. A support fitting for a telephone pole communication device or the like, comprising: a plurality of slots and bolts inserted into bolt holes corresponding to the slots.