JP2562020Y2 - Mounting bracket for communication cable - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, when fixing a support line of a communication cable to a telephone pole, a pulley is suspended to temporarily hold the cable, and then the communication cable is fixed to a metal fitting attached to the telephone pole. In the meantime, the present invention relates to improvement of a metal fitting for erection of a communication cable to be used.

[0002]

2. Description of the Related Art Conventionally, this metal fitting is as shown in FIG. That is, this metal fitting 1 is formed by connecting a U-shaped iron plate to L
After pulley 2 is hung as shown in FIG. 8 using holes 1-3 of horizontal portion 1-1 as shown in FIG. 8, bolts protruding from the electric pole and embedded in electric pole 13 for fixing support wires and metal fittings 6 are formed. 12, when it became a semicircular portion of the metal fitting 1, 1-2 was hooked, and this was installed and used at the telephone pole 13.

The configuration of a conventional support wire and metal fitting 6 will be described. FIG. 9 is a side view showing a state in which a pulley is attached to a conventional metal fitting and fixed to a power pole, FIG. 10 is a plan view showing a state where a metal fitting, a support wire and a metal fitting are fixed to the power pole, FIG. 11 is a front view of a rear metal fitting, and FIG.
13 is a front view of the front fitting, FIG. 13 is a front view of a state where the rear fitting and the front fitting are combined, FIG. 14 is a plan view of a state where the rear fitting and the front fitting are combined, and FIG. 15 is a side view of FIG. 9 and 1
0, FIG. 11, FIG. 12, FIG. 13, FIG. 14 and FIG. The rear bracket 8 is a horizontally elongated rectangular metal plate, and is integrally formed with a mandrel insertion tube portion 8-1 at the center, has a mandrel insertion hole 8-2 at the center, and supports the L-shaped front metal member 7 at the lower left and right. A part 8-5 is formed, and a bolt hole 8-3 is provided on the left and right of the mandrel insertion tube part 8-1. Front fitting 7
Is a semi-circular recess 7-1 which is a horizontally long rectangular metal plate and which is configured such that the mandrel insertion tube portion 8-1 can be inserted into the center from above.
And there are bolt holes 7-3 on the left and right of the recess 7-1. Semicircular recesses 7-2 and 8-4 for holding a support wire are formed below the front metal fitting 7 and the rear metal fitting 8. The front metal member 7 and the rear metal member 8 are temporarily connected with bolts 10, nuts 9, and washers 10 as shown in FIGS. 9, 10, 14, and 15.

In order to attach the metal fitting 1 to the utility pole 13, the metal fitting 1
The hook portion 1-3 of the connecting portion of the pulley 2 is inserted into the hook insertion hole 1-3.
2, connect the bracket 1 and the pulley 2, hold both,
The metal fitting semicircular portion 1-2 of the metal fitting 1 is hooked on the mandrel 12 of the telephone pole 13, and the mandrel insertion cylindrical part 8-
The mandrel 12 is inserted into the mandrel insertion hole 8-2, and the nut 1
4. The support wire and the metal fitting 6 are fixed to the utility pole 13 together with the metal fitting 1 by the washer 15 and the work is completed. A cable is inserted through the roller 5 through the roller 5 of the pulley 2.

[0005]

In the work of the prior art as described above, the pulley 2 is hung on the metal fitting 1, and then the support line F-1 of the communication cable and the main body F of the cable are peeled off. Until the support wire is fixed to the support wire and the metal fitting 6 attached to the telephone pole, the work of fixing the support wire is difficult because the work is in a state where tension is applied to the installed cable. The present invention provides an improvement of the metal fitting 1 that solves such a problem.

[0006]

SUMMARY OF THE INVENTION According to the present invention, first openings having holes for fixing pulleys are provided at open ends of respective parallel sides.
U-shaped metal plate, a second U-shaped metal plate having a metal piece fixed so that each parallel side extends from the opening end, and a connection for connecting the first and second U-shaped metal plates. An iron plate, wherein the first and second U-shaped metal plates are fixed to the connecting iron plate with opening ends facing each other, and each of the parallel sides of the first and second U-shaped metal plates; Parts are respectively bent to the same side with respect to the surface of the connecting iron plate, and the second U
The metal support piece fixed to the parallel side of the U-shaped metal plate is further bent to the same side with respect to the surface of the connecting iron plate.

[0007]

According to the present invention, since the pulley 2 is mounted above the supporting wire and the metal fitting 6, it is not necessary to lift a heavy cable and work. The lower metal fitting was provided with a metal supporting piece for the receiving tray, so that the cable could be placed on the lower metal fitting to perform the work, and the peeling work and the winding of the steel wire for protecting the cable supporting wire became easy.

[0008]

FIG. 1 is a perspective view of a fitting for mounting a communication cable (hereinafter referred to as a fitting) of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view, and FIG. 4 is a bottom view. In the figure,
16 is a lower bracket, 19 is an upper bracket, 18 is a connecting iron plate, 1
7 is a metal support piece, 19-1 is a hole for mounting a pulley, 19-
2 is a hole for rope passing.

The configuration of the metal fitting of the present invention will be described. The second U
The lower metal member 16 serving as a metal character plate has the same structure as the conventional metal member. In the present invention, the lower metal member 16 projects outside the parallel side portion 16-1 of the metal member 16 before the tip of the parallel side portion 16-1. Metal support piece 1 curved in a U-shape above the surface of
7 is fixed by welding or the like.

The upper bracket 19 serving as the first U-shaped metal plate has the same configuration as the lower bracket 16, and in the present invention, two rope passage holes 19-2 are formed outside the U-shaped portion of the metal plate. Provide. The lower bracket 16 and the upper bracket 19 provided with the additional structure as described above are connected and fixed by welding or the like so as to be vertically symmetrical between the respective U-shaped connecting portions with the rectangular connecting iron plate 18.

An operation procedure for fixing the support wire using the metal fitting of the present invention will be described. As shown in FIG. 5, when the electric pole 13 has an embedded bolt, the semicircular portion 16-2 of the lower metal fitting 16 of the present invention is hooked on the embedded bolt, and the electric pole 13 of the present invention is attached to the electric pole 13 with the support wire and the metal fitting 6 as in the prior art. While fixing the metal fitting, the rope 2 is inserted into the rope passing hole 19-2 of the upper metal fitting 19.
1 and the upper fitting 19 is fixed to the utility pole 13. After fixing the metal fitting of the present invention to the utility pole 13, the hole 19-
The pulley 2 is mounted on the pulley 1, and the support line F-1 and the cable body F are drawn into the pulley 2 and erected.

In the present invention, as shown in FIG. 5, when the support wire F ' installed on the pulley 2 and the communication cable F are brought to the position of the support wire fixed to the telephone pole 13 and the metal fitting 6, conventionally, the installation is carried out. Although the heavy cable under tension was lifted from below, the present invention easily removes the cable from the pulley 2 to the position of the bracket 1 simply because the upper bracket 19 for mounting the pulley 2 is at a high position. Can be lowered. Note that the rope 21 tied to the utility pole 13 is used for steadying, and the wire rope may be a belt or a band.

Cable F, support wire removed from pulley 2
F 'without falling because it is placed on a sufficient length and folded saucer-shaped metal support piece 17, the support line F' can be peeled off the cable body F and, after stripping, supported
Bring only the holding wire F ' to the lower side of the metal supporting piece 17 and wind a steel wire f for protecting the cable supporting wire. After the winding is completed, the support line F ' of the communication cable is raised, and the communication cable is attached to the metal fitting 6 and fixed.

[0014]

[Effects of the Invention] As described above, in the present invention, the pulley is suspended at a higher position than the support wire and the metal fitting 6, so that the cable is lowered without lifting the heavy cable that is erected. Can be easily done.
Moreover, since the support wire F ' is peeled off, the cable can be bent to allow a margin for the support wire , and the support wire F' becomes slack under the metal support piece 17, so that the steel wire for protecting the cable support wire is easily wound. Become. Further, when attaching the cable support wire F ' to the support wire clamp 6, it is possible to easily and easily fix the cable support wire F' to the support wire suspension 6 simply by turning it up.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fitting of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a bottom view of FIG. 1;

FIG. 5 is a view showing a state in which the fitting of the present invention is mounted on a utility pole and a cable is laid on a pulley;

FIG. 6 is a diagram showing a state in which the metal fitting of the present invention is mounted on a utility pole, and a support wire of the cable is fixed to a metal support.

FIG. 7 is a perspective view of a conventional fitting.

FIG. 8 is a perspective view showing a state in which a conventional metal fitting is attached to a utility pole, and a support wire, a metal fitting, and a pulley are attached.

FIG. 9 is a side view of FIG.

FIG. 10 is a plan view showing a state in which a conventional metal fitting is fixed to a utility pole with a conventional support wire and metal fittings.

FIG. 11 is a rear fitting of the support wire and the metal fitting.

FIG. 12 shows a front fitting of a support wire and a metal fitting.

FIG. 13 is a front view of the support wire and the metal fitting of FIG. 10;

FIG. 14 is a plan view of a support wire and a metal fitting.

FIG. 15 is a side view of FIG. 14;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction work metal fitting 2 Pulley 6 Support wire and metal fitting 7 Front metal fitting of supporting wire and metal fitting 8 Rear metal fitting of supporting wire and metal fitting 8-1 Mandrel insertion cylinder part 16 Lower metal fitting 17 Metal support piece 18 Connecting iron plate 19 Upper metal fitting F Cable F 'cable support wire

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takanobu Hasegawa 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Takashi Yoshida 1-16-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Japan Nippon Telegraph and Telephone Corporation (72) creator Yasuko Kajino 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) creator Nobuteru Ito 1-16-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Incorporated company (56) References Japanese Utility Model Showa 50-62691 (JP, U) Japanese Utility Model Showa 53-31997 (JP, Y1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A first U-shaped metal plate having a hole for fixing a pulley at an open end of each parallel side, and a metal piece fixed so that each parallel side extends from the open end. A second U-shaped metal plate having the first and second U-shaped
A metal plate connected to the first and second U-shaped metal plates, wherein the first and second U-shaped metal plates are fixed to the connected iron plate with open ends facing each other; Each parallel side portion of the plate is bent to the same side with respect to the surface of the connecting iron plate, and the metal support piece fixed to the parallel side portion of the second U-shaped metal plate is provided. A communication cable erection metal fitting, which is further bent to the same side with respect to the surface of the connecting iron plate.