JP2021118592A - Cable installation tool - Google Patents

Abstract

To provide a cable installation tool capable of maintaining cable spacing at a predetermined distance.SOLUTION: A cable installation tool includes: an arm metal support material 21 that is mounted in contact with a side surface of an electric pole P and extends in a vertical direction of the electric pole P; and an arm metal 3 that is detachably attached to the arm metal support material 21 and capable of installing a cable 110. With the arm metal support material 21, a plurality of mounting units for attaching the arm metal 3 is provided at a predetermined interval in a vertical direction.SELECTED DRAWING: Figure 1

Description

Regarding cable erection tools for erection of cables such as communication lines and electric wires on utility poles.

For example, when a communication line is erected or attached to a utility pole, construction is carried out by each communication carrier so that the distance between the communication lines is secured at a predetermined distance (legal distance) or more. However, since there are few erection locations, a new communication line may be erected near the existing communication line even though the communication line interval is less than a predetermined distance.

That is, as shown in FIG. 6, the first arm 101 and the second arm 102 are attached to the electric pole P by the bands 111 and 112, and the communication line 110 is erected on the respective arms 101 and 102. The distance D11 between the communication line 110 of the arm 101 and the communication line 110 of the second arm 102 is secured at least a predetermined distance. In such a state, it is assumed that the third arm 103 is attached between the first arm 101 and the second arm 102 with a band 113, and the communication line 110 is erected on the third arm 103. .. In this case, the distance D12 between the communication line 110 of the first arm 101 and the communication line 110 of the third arm 103, and the communication line 110 of the second arm 102 and the communication line 103 of the third arm 103. The distance D13 from 110 becomes less than a predetermined distance, which violates the legal regulations.

For this reason, it is necessary to regularly patrol whether or not there is an erection in which such a separation is not secured. Moreover, when it was confirmed that the erection was not secured, it was necessary to consult with the relevant telecommunications carrier and carry out construction work to change the erection location, which required a great deal of time and labor.

On the other hand, there is known a support device capable of arranging electric wires at predetermined intervals (see, for example, Patent Document 1). In this support device, a V-shaped first arm is attached to a utility pole at an upper part and a lower part, and a plurality of insulators for supporting an electric wire are arranged at predetermined intervals on an inclined portion of the first arm. ..

Japanese Unexamined Patent Publication No. 06-153349

However, even if the support device described in Patent Document 1 is applied to the erection of a communication line or the like, a new arm is attached to the utility pole between the upper part and the lower part where the first arm is attached to the utility pole. Will be created. As a result, a communication line is erected on this arm, and it becomes impossible to secure a predetermined separation.

Therefore, an object of the present invention is to provide a cable erection tool capable of maintaining a cable interval at a predetermined distance.

In order to solve the above problems, the invention of claim 1 is attached to the side surface of the utility pole in contact with the arm metal support member extending along the vertical direction of the electric pole, and is detachably attached to the arm metal support material. The arm metal support material is characterized in that a plurality of attachment portions for attaching the arm metal are provided at predetermined intervals along the vertical direction. It is a cable erection tool.

The invention of claim 2 is characterized in that, in the cable erection tool according to claim 1, the arm support member is formed so as to project from a part of the entire circumference of the utility pole.

The invention of claim 3 is the cable erection tool according to claim 1 or 2, wherein a locking portion is provided at an end portion of the arm metal, and the mounting portion is composed of a locked portion and is locked. By locking the portion to the locked portion, the arm metal is attached to the arm metal support member.

According to the invention of claim 1, since a plurality of mounting portions are provided on the arm metal support material at predetermined intervals, the arm metal is attached to the plurality of mounting portions and the cable is erected with each arm metal. It is possible to install a plurality of cables up and down by securing a predetermined distance (more than the legal distance). In addition, since the arm support material is attached by extending in the vertical direction of the electric pole, the arm support material interferes with another arm metal (arm metal other than the arm metal of the present invention) from above the arm metal support material. It becomes difficult to install. That is, it is difficult to attach another arm between the attachment portions of the arm support material, and it is possible to prevent a third party from not maintaining the separation between the cables by attaching another arm. It becomes.

Moreover, when the position of the cable needs to be adjusted (height change), it can be easily adjusted by attaching the arm to another mounting part, and the cable spacing can be maintained at a predetermined distance even after the adjustment. It becomes. In this way, it is possible to always properly secure and maintain the separation between the cables.

According to the invention of claim 2, since the arm support material is formed so as to project from a part of the entire circumference of the utility pole, it is more difficult to attach another arm from above the arm support material. It becomes. As a result, the cable spacing can be effectively maintained at a predetermined distance.

According to the invention of claim 3, the arm metal can be easily and appropriately attached to the arm metal support material only by locking the locking portion to the locked portion, so that the burden on the operator can be reduced and the work can be performed. It is possible to reduce time and labor costs.

It is a front view which shows the arrangement state of the cable erection tool which concerns on embodiment of this invention. It is (a) front view, (b) right side view, and (c) plan view which shows the arm metal support material of the cable erection tool of FIG. It is (a) front view and (b) left side view which shows the arm metal of the cable erection tool of FIG. It is a front view which shows the arrangement state of the 2nd cable erection tool in embodiment of this invention. It is a front view which shows the arrangement state of the 3rd cable erection tool in embodiment of this invention. It is a front view which shows the arrangement state of the conventional arm metal.

Hereinafter, the present invention will be described based on the illustrated embodiment.

FIG. 1 is a front view showing an arrangement state of the cable erection tool 1 according to the embodiment of the present invention. The cable erection tool 1 is a hanging tool for erection of a cable 110 such as a communication line or an electric wire on a utility pole P, and mainly includes an arm metal support member 21 and an arm metal 3.

The arm support member 21 is a member that is attached in contact with the side surface of the utility pole P and extends along the vertical direction of the utility pole P, and is formed so as to project from a part of the entire circumference of the utility pole P. That is, as shown in FIG. 2, the arm support member 21 is a long body having a U-shaped cross section, and includes a front plate portion 21A and leg portions 21B extending substantially vertically from both sides thereof. The length of the arm support member 21 is set so that a desired number of attachment portions 21C, which will be described later, can be provided, that is, a desired number of arm metal 3 can be attached.

Mounting bands 22 are attached to the upper and lower ends of the arm support member 21. That is, a band insertion hole facing both legs 21B on the upper and lower ends of the arm support member 21 is formed, and the mounting band 22 is inserted and mounted in the band insertion hole. A fastener (for example, a bolt or a nut) 23 is attached to the free end of the attachment band 22.

Then, the free ends of both legs 21B of the arm support member 21 are brought into contact with the side surface of the utility pole P, the arm support member 21 is arranged so as to extend along the vertical direction of the utility pole P, and the mounting band 22 is provided. The fastener 23 is tightened by winding it around the utility pole P. As a result, the arm support member 21 is in contact with the side surface of the utility pole P and is attached so as to extend along the vertical direction of the utility pole P and protrude from a part of the entire circumference of the utility pole P (along the entire circumference). The arm support member 21 is not attached, but is attached so as to protrude from a part of the arm support member 21.

Further, the front plate portion 21A of the arm metal support member 21 is provided with a plurality of attachment portions 21C for attaching the arm metal 3 at predetermined intervals along the vertical direction. In this embodiment, each mounting portion 21C is composed of four locking holes (locked portions) 21a and one screw hole 21b. That is, the locking hole 21a is a vertically long substantially square hole to which the locking hook (locking portion) 31 described later can be locked, and such a locking hole 21a is formed in all directions (rectangular four corners). There is. Further, the screw hole 21b is a female screw into which the mounting bolt 32 described later is screwed, and is formed in the central portion of the four locking holes 21a.

A plurality of such mounting portions 21C (four in this embodiment) are formed at predetermined intervals D1 in the vertical direction of the front plate portion 21A. Here, the predetermined interval is the distance between the adjacent upper and lower cables 110 (distance D1 between the arms 3 shown in FIG. 1) in a state where the arm 3 is attached and the cable 110 is erected as described later. (Equivalent to) is set to be secured at least a predetermined distance (legal distance).

The arm 3 is an arm that is detachably attached to the arm support member 21 and on which the cable 110 can be erected. That is, as shown in FIG. 3, it has a horizontally long substantially rectangular parallelepiped shape, and the lower end portion on one end side (arm support member 21 side) is formed in a divergent shape toward the end edge. Further, one end surface (end portion) 3a is substantially rectangular, and a locking hook 31 and a mounting bolt 32 are provided. The locking hook 31 has a hook shape extending substantially horizontally from one end surface 3a and having a tip portion bent substantially vertically downward, and is provided at four corners of the one end surface 3a. Further, a bolt hole is formed in the central portion of the one end surface 3a, and the male screw side of the mounting bolt 32 is inserted and mounted in the bolt hole. Here, at least the divergent portion 3b on one end side of the arm metal 3 is provided with an opening so that the mounting bolt 32 can be turned from this opening.

Then, by locking the locking hook 31 into the locking hole 21a of the arm support member 21, the arm 2 extends laterally (substantially horizontally) and is attached to the arm support member 21, and the mounting bolt 32 is screwed. By tightening in the hole 21b, the arm metal 2 is firmly fixed to the arm metal support member 21. Further, the arm metal 2 can be removed from the arm metal support member 21 by loosening the mounting bolt 32 and pulling out the locking hook 31 from the locking hole 21a.

A plurality of erection tools 4 (two in this embodiment) for erection of the cable 110 are attached to such an arm 3. The structure of the erection tool 4 may be any as long as the cable 110 can be erected, but in this embodiment, an L-shaped attachment member 41, a gripping member 44, and the like are provided. The L-shaped mounting member 41 has an L-shape, and its horizontal portion is fixed to the arm metal 3 by the erection bolt 42 and the erection nut 43. The gripping member 44 includes a ring-shaped gripping portion 44a into which the cable 110 is inserted and gripped, and is fixed to a vertical portion of the L-shaped mounting member 41 by a gripping bolt 45 and a gripping nut 46. Such a erection tool 4 is attached to two arms 3 so that the distance between the cables 110 is secured at a predetermined distance (legal distance) or more.

According to the cable erection tool 1 having such a configuration, since a plurality of attachment portions 21C are provided on the arm metal support member 21 at a predetermined interval D1 (legal distance or more), the arm metal 3 is provided on the plurality of attachment portions 21C. By attaching and erection the cable 110 with the erection tool 4 of each arm 3, it is possible to secure a predetermined distance (legal distance or more) between the cables 110 and erection a plurality of cables 110 vertically. Further, since the arm metal support member 21 extends in the vertical direction of the electric pole P, the arm metal support material 21 interferes with the arm metal support material 21 and another arm metal (arm metal 3 of the present invention) is placed on the arm metal support material 21. It becomes difficult to attach an arm other than the above, for example, the arm of FIG. 6 (101 to 103). That is, it is difficult to attach another arm between the attachment portions 21C (between the arms 3) of the arm support member 21, and the separation between the cables 110 is maintained by attaching another arm by a third party. It is possible to prevent it from being lost.

Moreover, when it is necessary to adjust the position (change the height) of the cable 110, it can be easily adjusted by attaching the arm 3 to another mounting portion 21C, and the cable 110 interval is maintained at a predetermined distance even after the adjustment. It becomes possible to do. In this way, it is possible to always properly secure and maintain the separation between the cables 110.

Further, since the arm support member 21 is formed so as to project from a part of the entire circumference of the utility pole P, it becomes more difficult to attach another arm from above the arm support member 21. That is, because the arm metal support member 21 protrudes from a part of the entire circumference of the utility pole P (because the cross-sectional shape including the utility pole P and the arm metal support member 21 is not circular), another arm metal is used. It becomes even more difficult to install. As a result, the cable 110 spacing can be effectively maintained at a predetermined distance.

Further, since the arm metal 3 can be easily and appropriately attached to the arm metal support member 21 simply by locking the locking hook 31 into the locking hole 21a, the burden on the operator can be reduced, and the working time and working cost can be reduced. Can be reduced.

Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like within a range that does not deviate from the gist of the present invention, this embodiment is described. Included in the invention. For example, in the above embodiment, the case where one arm support member 21 is attached to the utility pole P by the attachment band 22 has been described, but a plurality of arm support members 21 are attached to the utility pole P by the attachment band 22. May be good. For example, as shown in FIG. 4, two arm support members 21 are arranged around the utility pole P as a target (point target), and the two arm support members 21 are fastened together with the mounting band 22 to fasten the utility pole P. It may be attached to.

Further, although the case where the arm support member 21 is integrally formed has been described, the arm support member 21 may be formed of a plurality of detachable members. For example, as shown in FIG. 5, a plurality of support blocks 20 having one mounting portion 23C may be connected to form the arm support member 21. As a result, the arm support member 21 having a desired number of mounting portions 23C can be easily configured, and the mounting portions 23C can be easily added or reduced. Here, the adjacent support blocks 20 may be connected to each other via a connecting member (connection bar) or the like.

1 Cable erection tool 21 Arm support material 21C Mounting part 21a Locking hole (locked part)
21b Screw hole 22 Mounting band 23 Tightening tool 3 Arm metal 3a One end surface (end)
31 Locking hook (locking part)
32 Mounting bolt 4 Mounting tool 110 Cable P Utility pole

Claims (3)

An arm support member that is attached to the side surface of the utility pole and extends along the vertical direction of the utility pole.
An arm that can be detachably attached to the arm support material and a cable can be erected,
The arm metal support material is provided with a plurality of attachment portions for attaching the arm metal at predetermined intervals along the vertical direction.
A cable erection tool that is characterized by this. The arm support member is formed so as to project from a part of the entire circumference of the utility pole.
The cable erection tool according to claim 1. A locking portion is provided at the end of the arm.
The mounting portion is composed of a locked portion and is composed of a locked portion.
By locking the locking portion to the locked portion, the arm metal is attached to the arm metal support member.
The cable erection tool according to any one of claims 1 or 2.

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