JP2001224121A - Cleat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleat utilizable at various positions on a steel tower in spite of its having only one form, and its uniting element. SOLUTION: This cleat is provided with electric-wire holding metallic fixtures 10, fitting metallic fixture 20 to be attached to a steel tower member, and a uniting element 30, which links the holding fixtures 10 and the fitting fixtures 20. This uniting element 30 is bent into V-shape, and the external angle θ of the bending is 20-70 deg..

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleat for wiring and fixing an optical fiber overhead ground wire (OPGW) or the like to a steel tower, and a connecting portion for the cleat. In particular, it relates to cleats that can be applied in one form to any part of the tower.

[0002]

2. Description of the Related Art Cleats are used to wire and fix an OPGW to a steel tower. Generally, a steel tower is made of a pipe material or an angle material, and a cleat corresponding to each constituent member is used.

FIG. 5 shows a cleat for a pipe material, which comprises a gripping metal fitting 10 of the OPGW and an annular mounting metal fitting 20 mounted on the outer periphery of the pipe material of the steel tower. Are connected by a connecting portion 30 in the shape of a circle.

FIG. 6 shows a cleat for an angle material.
Similarly, it includes a gripping metal fitting 10, a mounting metal fitting 20, and a connecting part 30. However, the mounting bracket 20 is formed in an L shape so as to easily grip the angle member 50, and the connecting portion 30 is formed in a step shape by combining two L-shaped metal pieces.

[0005] Here, FIG. 5 shows a gripper for two wires, and FIG. 6 shows a gripper for single wire.

[0006] Such cleats use various types of connecting portions in accordance with the relationship between the positions of the structural members such as the main member, diagonal members, and web members of the tower and the positions where the OPGWs are wired. The connection direction of the connecting part was adjusted and used.

[0007]

However, in order to use various types of connecting parts according to the positions of the components of the tower and the wiring positions of the OPGW, various types of cleats must be prepared, which is extremely troublesome. It is. In particular, it is very complicated to design connecting portions having different forms according to the type and size of the tower and to determine the required number of each cleat in advance. Also, when the connecting part is configured by connecting a plurality of parts,
As the number of parts increases, connection work of each part is required, which is not preferable in terms of mounting workability.

[0008] It is, therefore, a primary object of the present invention to provide cleats which can be used at various locations in a tower in one form, and their connections.

[0009]

SUMMARY OF THE INVENTION The present invention achieves the above object by using a connecting portion bent in a V-shape. That is, the cleat of the present invention is a cleat including an electric wire gripping metal, a mounting metal attached to the tower member, and a connecting portion for connecting the electric wire gripping metal to the mounting metal.
It is characterized in that the outer angle of the bend is 20 to 70 °.

The cleat connecting portion of the present invention is a cleat connecting portion for connecting an electric wire gripping bracket and a mounting bracket attached to a steel tower member, and the connecting portion is bent in a V shape.
The outer angle of bending is 20 to 70 °.

[0011] By connecting the mounting bracket and the electric wire gripping metal by the V-shaped connecting portion having the limited angle, the electric wire gripping metal can be arranged in various directions from the mounting metal. Conventionally, for example, when a cleat using a straight-plate-shaped connecting portion is attached to a web member of a steel tower, there is a possibility that the electric wire gripping portion contacts the diagonal member. Therefore, if the connecting portion is V-shaped, a part of the connecting portion can be arranged along the diagonal member. Therefore, a more preferable bending outside angle is 35 to 55 °, and a particularly preferable bending outside angle is 45.
°.

Further, the V-shaped connecting portion is formed not as a combination of a plurality of components but as a single component, so that the number of components can be reduced and the mounting operation can be simplified.

[0013]

Embodiments of the present invention will be described below. (Structure) FIG. 1 is a schematic view of a cleat of the present invention for a pipe material. This cleat is used to hold the OPGW.
And an annular mounting bracket 20 attached to a steel tower, and a connecting portion 30 for connecting the electric wire gripping bracket 10 and the mounting bracket 20.

The electric wire gripping bracket 10 has a circular electric wire insertion hole formed by opposing a gripping block 11 having a semicircular concave portion.
It is a metal fitting that holds the OPGW by tightening it. In this example, the holding metal fitting for a single wire is shown, but the number of OPGWs to be held is not particularly limited, and the number of OPGWs for holding a multi-wire may be used.

The mounting bracket 20 is mounted on the outer periphery of a pipe material constituting a steel tower. Here, four arc-shaped pieces 21 are connected to each other by an end fastening bolt 22 and an intermediate connecting bolt 23 to form an annular shape. . The through hole of the intermediate connection bolt 23 is formed in a long hole or a plurality of holes, and each arc-shaped piece 21 is slid in the range of this long hole, or the intermediate connection bolt is passed through any of the plurality of holes. The mounting bracket can be attached to pipe materials having different diameters.

The connecting portion 30 has one end having one end tightening bolt.
22 is a metal piece penetrated by the other end and penetrated by the bolt 12 of the electric wire holding bracket. This connecting portion 30 is bent in a V shape, and in this example, the bending outside angle θ is set to 45 °.

Next, the cleat of the present invention for an angle material is shown in FIG.
Shown in This cleat is also used to hold the OPGW.
And a connecting part 30 for connecting the electric wire gripping metal part 10 and the mounting metal part 20, and the mounting metal part 20 has a configuration corresponding to an angle material.

This mounting bracket is formed by combining two bolts 24 and 25 into an L-shape. One of the bolts 24 has a head at one end, and a male screw is formed at the other end, and the other bolt 25 has an annular portion at one end, and a male screw is formed at the other end.
By inserting one bolt 24 into the annular portion of the other bolt 25, the two bolts 24 and 25 are combined into an L-shape. In addition, a hook 26 that is hung on the end surface of the angle member 50 is inserted into each of the bolts 24 and 25. The position of the latch 26 is slid according to the size of the angle member 50, and the mounting member 20 is fixed to the angle member 50 by tightening the nut 27.
The connecting portion 30 penetrates one of the bolts 24 of the mounting bracket 20 and is mounted between the nut 27 and the latch 26 with a washer 28 interposed therebetween.

The configurations of the electric wire gripping fitting 10 and the connecting portion 30 are the same as those shown in FIG. However, FIG. 2 shows the electric wire holding bracket 10 for two wires.

(Mounting state) FIG. 3 shows an example of cleat mounting on a steel tower using an angle material, (A) is a plan view,
(B) is a front view. Here, at the top of the tower,
The case where the OPGW 60 is wired downward from the arm member 51 along the structural members of the steel tower will be described as an example. The installation positions of the main cleats are indicated by broken lines in a box shape.

FIG. 4A is a view taken in the direction of arrows AA in FIG. In this cleat, the electric wire gripping bracket is arranged above the arm member 51 (angle material) so that the OPGW 60 is along the arm member 51.

FIG. 4B is a view taken in the direction of the arrow BB in FIG. In this cleat, the OP
An electric wire gripping metal is arranged in a direction in which the GW 60 intersects with the angle member 50.

FIG. 4C is a view taken in the direction of the arrow CC in FIG. In this cleat, the electric wire gripping metal is arranged so that the OPGW 60 is along the angle member 50 inside the steel tower.

FIG. 4D is a view taken in the direction of the arrow DD in FIG. In this cleat, the OP
An electric wire gripping metal is arranged in a direction in which the GW 60 intersects with the angle member 50.

FIG. 4E is a view taken in the direction of the arrow EE in FIG. In this cleat, the electric wire holding bracket is arranged in a direction in which the OPGW 60 intersects the angle member 50 inside the steel tower.

FIG. 4F shows a view taken in the direction of the arrow FF in FIG. In this cleat, the electric wire holding bracket is arranged in a direction in which the OPGW 60 intersects the angle member 50 inside the steel tower.

As described above, by using the V-shaped connecting portion to adjust the mounting direction and the mounting position of the connecting portion with respect to the mounting bracket, cleats can be properly mounted at all positions of the tower, and various types of cleats can be installed. There is no need to provide cleats.

[0028]

As described above, according to the cleat of the present invention, it is possible to apply the cleat in one form to various places in the steel tower, and it is very convenient because it is not necessary to prepare various kinds of cleats. In addition, the present invention cleat connecting portion,
Most suitable for the configuration of the cleat of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic view of a cleat of the present invention for a pipe material.

FIG. 2 is a schematic view of the cleat of the present invention for an angle material.

FIGS. 3A and 3B are views showing cleat mounting positions in a tower, FIG. 3A is a plan view of the tower, and FIG. 3B is a front view of the tower.

4A and 4B show how the cleat of the present invention is mounted at each position of a steel tower, wherein FIG. 4A is a view taken along the line AA of FIG. 3, FIG. 4B is a view taken along the line BB of FIG. 3, and FIG. (D) of FIG. 3
3 (D), (E) in FIG. 3 in the direction of the arrow EE, and (F) in FIG.
FIG.

FIG. 5 is a schematic view of a conventional cleat for pipe material.

FIG. 6 is a schematic view of a conventional cleat for angle materials.

[Explanation of symbols]

 10 Wire gripping bracket 11 Gripping block 12 Bolt 13 Nut 20 Mounting bracket 21 Arc-shaped piece 22 End tightening bolt 23 Intermediate connecting bolt 24 Bolt 25 Bolt 26 Hook fitting 27 Nut 28 Washer 30 Connection part 50 Angle material 51 Arm material

Claims (2)

[Claims] 1. A cleat comprising an electric wire gripping metal, a mounting metal attached to a tower member, and a connecting portion for connecting the electric wire gripping metal and the mounting metal, wherein the connecting portion is bent in a V shape, A cleat having an outside bending angle of 20 to 70 °. 2. A cleat connecting portion for connecting an electric wire gripping metal fitting and a mounting metal fitting mounted on a steel tower member, wherein the connecting portion is bent in a V shape, and has an outer bent angle of 20 to 70 °. Cleat connection.