KR101713980B1 - I Bolt Clamp and Bonding Method of Supporting Wire Using It - Google Patents

Abstract

An I-bolt clamp according to the present invention is used when a cable line embedded with self-supporting optical cables is bound to an electric pole at a predetermined interval to be supported, when a cable line is branched and bound to an electric pole to be vertically installed, or when a support wire including a plurality of element wires supporting an electric pole from falling is bound to an anchor pole. The I-bolt clamp comprises: a clamp body which allows the support wire to be inserted again after passing therethrough and has a hollow at the center in the shape of a circular pipe; and a fixing bolt which includes a bolt body having male threads and a bolt head and is coupled to the clamp body to press and fix the support wire passing through the clamp body. The fixing bolt is inserted and coupled to the clamp body, and the clamp body has a bolt-coupling portion in which, when the fixing bolt is rotated, the fixing bolt moves up and down and the terminal of the fixing bolt presses and fixes the support wire. According to the I-bolt clamp and the supporting wire binding method using the same according to the present invention, material costs required for binding are merely 20 to 30% of those with the existing 2B or 3B clamp, the binding operation is simplified and the binding operation time is reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bolt clamp,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an I bolt clamp and a support line binding method using the I bolt clamp, and more particularly, An I bolt clamp used to bind a support line made of a plurality of strands of strands supporting an electric pole so as not to fall over an electric pole, and a support wire connection method using the same will be.

Generally, a cable refers to a high-voltage electric wire for supplying electricity or an optical cable for transmitting an optical signal, and is installed in a state where it is connected to a pole installed at an interval of 50 m on the ground.

Optical cable is a cable that converts electrical signals into light signals and transmits them through fiberglass. It has a cylindrical shape, and has a core, a clad, a jacket, and the like.

Shim is an optical fiber made of very thin glass or plastic.

The clad is a kevlar fiber to resist the strong force around the glass fiber. The main component is a light pulse of the glass fiber, which is not disturbed by the external current, and is covered with glass or plastic having different optical characteristics.

The jacket is the outermost layer around the bundle of optical fibers and is made of plastic or other materials, which prevents moisture, abrasion, and damage.

The fiber optic cable transmits the signal beam with internal reflection. It has a wider bandwidth than other wired transmission media and has a high data transmission rate. In addition, it can reduce the size and weight of the structure and transmit it in the form of light. Impact noise, and external interference such as crosstalk. It is widely used in short-distance and wide-area networks, long distance communications, military use, and subscriber lines.

When one wavelength is used for one optical cable, the data transmission speed is about 2.5 Gbps (Gigabit / s).

However, it is possible to increase transmission speed by simultaneously transmitting various wavelengths using WDM (Wavelength Division Multiplexing) technology.

In recent years, ultra high density wavelength division multiplexing (UDWDM) technology has been developed for a single optical fiber with a transmission rate of several hundred Gbps.

The type of the optical cable is a multi mode in which a core diameter is 50 to 100 μm and is used for a short distance of communication up to 2 km and a single mode in which a core diameter is about 9 μm and is used for long- (Single Mode).

The above-mentioned optical cable can be divided into a single sheath process (SP type: Steel + PE), a double sheath process (PSP type: PE + Steel + PE), a self- -Supporting).

All-day cable installation method includes a method of attaching a cable hanger to a suspension wire in a public state, a method of binding a cable to the cable in the air, a self-supporting structure of a single body covered with a cable core and a support wire Type cable installation method.

An optical cable other than the self-supporting type is installed in such a manner that a bundle of wires having a considerable tensile strength between a telecommunication cable and a telecommunication cable is first installed as a supporting cable, and the optical cable is directly bundled with the cable at regular intervals . However, this method is inconvenient for the worker to work on the hanging wire for a long time. Recently, a wire hanger which is made by bending a thin wire into a circular shape is used, and a cable hanger is attached to a suspention wire A method of hypothesis is used.

Conventionally, the above-mentioned self-supporting type optical cable is processed by using a 2B clap with two grooves (2 clamps using bolts) or 3 clamping bolts (3B clamps) on both sides, so that the price of the clamp is high, And a self-supporting type cable installation method in which a cable core and a support wire are covered together to form a single body.

In particular, there is no problem in the case of copper cable-oriented construction in which the weight of the past is heavy and the current weight is heavy. However, in the case of a lightweight optical cable-based construction, a too large and inefficient side many.

1. Korean Utility Model Registration Bulletin 20-0285079 (Registration date July 29, 2002) Clamping mechanism for outdoor communication cable support 2. Korean Patent Registration No. 10-0293315 (Registered on Apr. 2, 2001) Mechanism for installing live wire and installation method 3. Korean Patent Registration No. 10-0898709 (Registered on May 14, 2009) Clamp for optical drop cable support 4. Korean Patent Registration No. 10-1032687 (Registered on Apr. 26, 2011)

In order to solve the above-mentioned problems, the present invention is directed to a method for supporting a line installed in a self supporting optical cable, comprising the steps of: Is used for binding to anchor rods, and the manufacturing cost is low, and the I bolt clamp having a high working efficiency is used and the supporting wire binding method using the same is used.

The I clamp of the present invention is characterized in that a support line made up of a plurality of strands of strands supporting the line supported by the self supporting optical cable so as to bind the strand at a predetermined interval or not to fall over the telescope is fixed to the anchor rod When used.

Wherein the self-supporting optical cable includes: a cable body accommodating an optical fiber therein;

A support wire made of a plurality of strands twisted together to support the cable main body; A cover made of a polymer material for insulation, a sheath composed of an outer skin surrounding the cable body, an outer skin surrounding the support line, and a non-connected skin connecting the outer skin to the outer surface of the support line.

Said clamp comprising: a clamp body having a center hollow in the form of a circular pipe through which said support wire has passed and is retracted; And a fixing bolt formed of a bolt body and a bolt head, the bolt body being coupled to the clamp body and having a male screw for pressing and supporting the supporting line passing through the inside of the clamp body.

The fixing bolt is inserted into the clamp body. When the fixing bolt is rotated, the fixing bolt moves up and down so that the end of the fixing bolt can press the supporting line to fix the bolt.

Wherein the bolt coupling hole is formed at a thickness of one side of the intermediate portion of the clamp main body and has a tab having a diameter of 9 mm or more or a bolt hole formed in the clamp main body; And a coupling nut which is welded to an upper portion of the bolt hole and has a female screw having a diameter smaller than that of the bolt hole.

A nut body portion having a female screw formed on the coupling nut nut and screwed to the fixing bolt; And a saddle portion formed at a lower portion of the nut body portion to facilitate welding connection with the clamp body.

The support line binding method using the I bolt clamp of the present invention includes: a support line exposure step of cutting one end surface of the skin outside the support line surrounding the support line by a predetermined length required for binding, and extracting the support line from the skin outside the support line; A clamp inserting step of inserting the clamp into the supporting line so that the end of the fixing bolt is not located deeper than the thickness of the clamp body; A wire winding step of winding the supporting wire into which the clamp is inserted at a desired position of the telephone main body by two or three turns; A supporting wire drawing step of pulling the end of the supporting wire wound around the electric wire into the hollow of the clamp body to pass the supporting wire; A supporting wire fixing step of pulling the supporting wire to give tension and then rotating the fixing bolt to press the supporting wire so as to prevent the supporting wire from moving; A supporting line binding step of loosening a plurality of small wire wires of the supporting wire one by one and ending the supporting wire drawn by the clamp and the supporting wire drawn by the clamp together until a predetermined number of times; And a tape finishing step of finishing a portion of the self-supporting optical cable in which the cable main body and the supporting line are separated from each other.

The above-described problem of the present invention can be solved by the I bolt clamp and the supporting wire binding method using the I bolt clamp.

According to the I bolt clamp of the present invention and the supporting line binding method using the same, the material cost required for the binding is only 20 to 30% as compared with the conventional 2B or 3B clamp, and the binding work is easy, shortening the binding work time .

Figure 1 shows a conventional 2B clamp schematic
2 is a schematic view of a conventional 3B clamp schematic
3 is a perspective view of a self- supporting optical cable
Fig. 4 is an overall view of the I bolt clamp according to the first embodiment of the present invention
Fig. 5 is an overall view of an I bolt clamp according to the second embodiment of the present invention
6 is a schematic view of a first embodiment of a clamp body according to the I bolt of the present invention;
7 is a schematic view of a second embodiment of the clamp body according to the I bolt of the present invention.
8 is a schematic view of a nut body according to the I bolt of the present invention
9 is a schematic view of a fixing bolt according to the I bolt of the present invention
Fig. 10 is a flowchart of a support line binding method using an I bolt according to the present invention
Fig. 11 is a photograph of a result after the supporting line binding operation according to the first embodiment of the supporting line binding method using the I bolts of the present invention
Fig. 12 is a photograph of the result after the support line binding operation according to the second embodiment of the support line binding method using the I bolts of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The term " I bolt clamp " and " method for binding the support line using the same "according to the present invention can be defined by the following definitions, The present invention is not limited thereto.

Hereinafter, a preferred embodiment of the "I bolt clamp and supporting method using the same" according to the present invention will be described in detail.

The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

3 is a perspective view of a self-supporting optical cable, FIG. 4 is an overall view of an I bolt clamp according to a first embodiment of the present invention, and FIG. 5 is a cross- 6 is a schematic view of a first embodiment of a clamp body according to an I bolt of the present invention, and Fig. 7 is a schematic view of a second embodiment of a clamp body according to the I bolt of the present invention. Fig. 9 is a schematic view of a fixing bolt according to an I bolt of the present invention, FIG. 10 is a flowchart of a supporting line binding method using an I bolt of the present invention, and FIG. 11 is a cross- Fig. 12 is a photograph 2 of the support line binding operation according to the second embodiment of the support line binding method using the I bolts of the present invention. Fig. 12 is a photograph 2 after the supporting line binding operation according to the first embodiment of the present invention .

FIG. 1 is a 2B clamp 4 for clamping a support line 12 with two bolts used in the past.

The 2B clamp 4 includes two 2B clamp bodies 41 for preventing the support wire 12 from moving when the support wire 12 is inserted and pressed; And two fixing bolt nuts 42 for coupling the two clamping bodies 41 to each other.

The fixing bolt nut 42 is composed of a fixing bolt 421 and a nut 422. When the nut 422 is inserted into the fixing bolt 421, it is preferable to insert the washer 423 in a tensioned manner .

A fixing bolt insertion hole 412 through which the supporting wire insertion groove 411 and the fixing bolt 421 are inserted is formed in the 2B clamp body 41.

The 2B clamp 4 is preferably used for a large-weight copper cable-based construction. It is difficult to press the support wire by pressing the support wire to the support line of a lightweight self-supporting optical cable. And the operation is carried out by turning one side, and the unit cost is high and the working time is long.

2 is a 3B clamp 5 for clamping the supporting line 12 with three bolts used in the past.

The 3B clamp 5 includes two 3B clamp bodies 51 for preventing the support wire 12 from moving when the support wire 12 is inserted and pressed; And three fixing bolt nuts 52 for coupling the two 3B clamp bodies 51 to each other.

A fixing bolt insertion hole 512 through which the supporting wire insertion groove 511 and the fixing bolt 521 are inserted is formed in the 3B clamp body 51.

The fixing bolt nut 52 is composed of a fixing bolt 521 and a nut 522. When the nut 522 is inserted into the fixing bolt 521, it is preferable to insert the washer 523 in a tensioned manner .

It is preferable that the 3B clamp 5 is used for a copper cable-based construction having a large weight, such as the 2B clamp 4, and it is difficult for the support wire of a lightweight self-supporting optical cable to be tapered There is a problem that the cost is higher than that of the 2B clamp 4 and that a long working time is required because the unit cost of the 3B clamp body 51 is rotated by one side, have.

As shown in Fig. 3, a self-supporting optical cable 1 to which the clamp 3 of the present invention is applied includes a cable main body 11 accommodating an optical fiber therein; A supporting line 12 formed by twisting a plurality of strands 121 in the inside in order to support the cable main body 11; The outer skin 131 surrounding the cable main body 11 and the outer skin 132 surrounding the support line 12 and the outer skin 131, And a sheath 13 constituted by an unconnected skin 133 connecting the skin 132.

The cable body 11 is composed of an optical fiber core made of very thin glass or plastic and a kevlar fiber for endowing the periphery of the glass fiber with a strong force. The main component is a light pulse of glass fiber, And is made of a clad which is not disturbed and is covered with glass, plastic or the like having optical characteristics different from those of the core.

4, the first embodiment of the clamp 3 of the present invention is characterized in that the clamping body 31, in which the support line 12 has passed and is retracted, with a hollow 311 in the center in the form of a circular pipe, Wow; A bolt body 321 formed with a male screw 3211 coupled to the clamp body 31 and pressing the support line 12 to be passed through the clamp body 31 and a bolt head 322, (32).

The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed to allow the bolt to be fixed.

The bolt coupling hole 312 is formed at one side of the intermediate portion of the clamp main body 31 and is a tab hole having a tab 3121 having a diameter of 9 mm or more.

That is, the clamp 3 of the first embodiment includes the clamp body 31 having a bolt coupling hole 312 having a hole formed therein and a fixing bolt 32 inserted and coupled to the bolt coupling hole 312, And it is easy to construct.

The diameter of the clamp body 31 is variable depending on the size of the support line 12, but generally has an inner diameter of 12 to 20 mm and a thickness of 2.5 to 4.0 mm. The fixing bolt 32 has a diameter of 9 mm or more, 20 mm.

5, the second embodiment of the clamp 3 of the present invention is characterized in that the clamping body 31, in which the support line 12 has passed and is again retracted, with a hollow 311 in the center in the form of a circular pipe, Wow; A bolt body 321 formed with a male screw 3211 coupled to the clamp body 31 and pressing the support line 12 to be passed through the clamp body 31 and a bolt head 322, (32).

The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed to allow the bolt to be fixed.

The bolt coupling hole (312) includes a bolt hole (3122) formed in the clamp main body (31); And a coupling nut 3123 which is welded to an upper portion of the bolt hole 3122 and has a smaller diameter than the bolt hole 3122.

That is, the clamp 3 of the second embodiment includes the clamp main body 31 having the bolt hole 312 composed of the bolt hole 3122 and the coupling hole nut 3123, And the fixing bolt 32 is coupled to the supporting bolt 32. The supporting bolt 32 is less intricate than the first embodiment but is used when the supporting cable 12 is thick because the self supporting optical cable 1 is large in size, Simple construction, low cost of production and easy installation.

As shown in FIG. 6, the first embodiment of the clamping body 31 has a hollow 311 formed at the center in the form of a circular pipe through which the supporting line 12 has passed.

The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed to allow the bolt to be fixed.

The bolt coupling hole 312 is formed at one side of the intermediate portion of the clamp main body 31 and is a tab hole having a tab 3121 having a diameter of 9 mm or more.

It is preferable that both ends of the clamp main body 31 have a curved surface portion 313 having a certain radius of curvature in order to prevent floating during work.

The clamp body 31 of the first embodiment is preferably flexible depending on the size of the support line 12, but preferably has an inner diameter of 12 to 15 mm and a thickness of 2.5 to 3.5 mm.

As shown in FIG. 7, the second embodiment of the clamp body 31 has a hollow 311 formed at the center thereof in the form of a circular pipe through which the supporting line 12 has passed.

The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed to allow the bolt to be fixed.

The bolt coupling hole (312) includes a bolt hole (3122) formed in the clamp main body (31); And a coupling nut 3123 which is welded to an upper portion of the bolt hole 3122 and has a female screw 312311 having a smaller diameter than the bolt hole 3122.

The clamp main body 31 and the coupling tool nut 3123 are welded to each other and have a welded portion 3124.

The clamp body 31 of the second embodiment is flexible depending on the size of the support line 12, but it preferably has an inner diameter of 15 to 20 mm and a thickness of 3.5 to 4.0 mm.

In other words, the clamp main body 31 of the second embodiment is less complicated than the first embodiment, but it is preferable that the self-supporting optical cable 1 has a large capacity so that the support line 12 is thick.

8, the coupling nut 3123 is welded to an upper portion of the bolt hole 3122, and a female screw 312311 having a smaller diameter than the bolt hole 3122 is formed.

The coupling nut 3123 includes a nut body 31231 formed with the female screw 312311 and screwed to the fixing bolt 3232; And a saddle portion 31232 formed at a lower portion of the nut main body 31231 and for facilitating welding connection with the clamp main body 311.

9, the fixing bolt 32 is formed with a male screw 3211 which is coupled to the clamp body 31 and presses and fixes the supporting line 12 passing through the inside of the clamp body 31 And includes a bolt body 321 and a bolt head 322.

The fixing bolt 32 may be flexible depending on the size of the supporting line 12, but may have a bolt length of 12 to 20 mm formed by a male screw 3211 having a diameter of 9 mm or more.

10, in the support line binding method using the I bolt clamp of the present invention, the supporting line 12 is fixed at a constant interval in order to support the line laid on the self-supporting optical cable 1 by using the clamp 3 To the telephone pole (2).

Since the self-supporting optical cable 1 and the clamp 3 are the same as those described above, they are omitted.

The supporting line binding method includes a supporting line exposing step of cutting the one end face of the outer skin 132 surrounding the supporting line 12 by a predetermined length required for binding and drawing the supporting line 12 out of the outer supporting skin 132 ; Inserting the support wire (12) into the clamp (3) so that the end of the fixing bolt (32) is not located deeper than the thickness of the clamp body (31); A wire winding step of winding the supporting wire (12) inserted into the clamp (3) at a desired position of the telephone main body by two to three turns; Pulling a distal end of the supporting wire (12) wound around a telephone pole with the hollow (311) of the clamp body (31) to pass the supporting wire (12); A support wire fixing step of pulling the support wire 12 to give a tension and then rotating the fixing bolt 32 to press the support wire 12 so that the support wire 12 does not move; A plurality of wires 121 of the support wire 12 are loosely pulled one by one and the support wire 12 pulled into the clamp 3 and the support wire pulled out by the clamp 3 are bundled together and wound around a certain number of times A support line binding step in which And a tape finishing step of wrapping and finishing a portion where the cable main body 11 and the supporting line 12 are separated from each other in the self-supporting optical cable 1 to finish.

The supporting line exposing step may include a supporting line outer skin section dissection step of dissecting the covering section of the supporting skin outer skin 132 so that the supporting line 12 can be pulled out from the skin outer skin 132; Removing the support line (12) from the incised portion; Making the support line at a 90 degree angle with the cable body.

The supporting line fixing step includes the steps of pulling the supporting line 12 to apply tension thereto; And pressing the supporting line by rotating the fixing bolt in a tensioned state.

The supporting line binding step includes a step of loosening the twisted wire 121 to one end of the clamp 3; The support wire 12 and the support wire 12 drawn out from the clamp 3 are bundled together to the main wire of the support wire 12 by bringing the wire wire 121 into contact with one end of the clamp 3, Tightly winding until it is finished; Repeating the step of loosening the strand 121 and the step of winding the strand 121, and repeating the operation until the remaining strand 121 is finished.

11 is a perspective view of a self-supporting optical cable according to an embodiment of the present invention, in which a self-supporting optical cable 1 is branched and vertically installed, The support lines 12 can be bound to each other by the support line binding method described above even when they are bound to the poles at regular intervals in order to support the lines laid in the air.

12, the supporting line binding method when the supporting line 7 made of a plurality of strands of strands supporting the electric pole 2 does not fall over is fixed to the anchor rod 6 by the end of the fixing bolt 32 Inserting a support wire (7) into the clamp (3) so as not to be positioned deeper than the thickness of the clamp body (31); Fitting the support line (7) inserted in the clamp (3) into the end ring (61) of the anchor rod (6); A supporting line withdrawing step of pulling the end of the supporting line 12 sandwiched between the end rings 61 into the hollow 311 of the clamp main body 31 and passing the supporting line 12 through the supporting line 7; A supporting wire fixing step of pulling the supporting wire 7 to give a tension and then rotating the fixing bolt 32 to press the supporting wire 7 so that the supporting wire 7 does not move; The operation of winding the supporting lines drawn by the clamp 3 together with the supporting lines pulled by the clamp 3 together by loosening the ends of the plurality of small wires 71 of the supporting wire 7 by a single strand, And the support line binding step is repeated.

According to the I bolt clamp of the present invention and the supporting line binding method using the same, the material cost required for the binding is only 20 to 30% as compared with the conventional 2B or 3B clamp, and the binding work is easy, shortening the binding work time .

1: Self-supporting optical cable
11: cable body 111: optical fiber core
112: Clad 12: Support line
121: wire 13: sheath
131: Outer skin 132: Outer skin
133: Outer skin
2: Telephone pole
3: Clamp
31: clamp body 311: hollow
312: bolt coupling hole 3121: tab
3122: Bolt hole 3123: Coupling tool nut
31231: nut body 312311: female thread
31232: saddle portion 3124: welding portion
313:
32: Fixing bolt 321: Bolt body
3211: male thread 322: bolt head
4: 2B clamp
41: 2B clamp body 411: supporting wire insertion groove
412: Fixing bolt insertion hole 42: Fixing bolt nut
421: Fixing bolt 422: Nut
423: Washer
5: 3B clamp
51: 3B clamp body 511: supporting line insertion groove
512: Fixing bolt insertion hole 52: Fixing bolt nut
521: Fixing bolt 522: Nut
523: Washer
6: Anchor rod 61: End ring

Claims (7)

(2) to support the lines laid by the self-supportive optical cable (1), to support the line (2) so as not to fall over the pole A clamp (3) for use in binding an anchor rod to a support wire made of a plurality of strands of elementary wires,
The self-supporting optical cable (1) includes a cable main body (11) accommodating an optical fiber therein;
A supporting line 12 formed by twisting a plurality of strands 121 in the inside in order to support the cable main body 11;
The outer skin 131 surrounding the cable main body 11 and the outer skin 132 surrounding the support line 12 and the outer skin 131, And a sheath (13) composed of an outer skin (133) connecting the skin (132)
The clamp (3) comprises a clamp body (31) having a hollow (311) in the center in the form of a circular pipe through which the support wire (12) has passed and is retracted;
A bolt body 321 formed with a male screw 3211 coupled to the clamp body 31 and pressing the support line 12 to be passed through the clamp body 31 and a bolt head 322, (32)
The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed in the bolt coupling hole 312,
The bolt coupling hole (312) includes a bolt hole (3122) formed in the clamp main body (31);
And a coupling nut 3123 which is welded to an upper portion of the bolt hole 3122 and has a female thread having a smaller diameter than the bolt hole 3122,
The coupling nut 3123 has a nut body 31231 formed with a female screw and screwed to the fixing bolt 3232;
And a saddle portion 31232 formed at a lower portion of the nut main body 31231 to facilitate welding connection with the clamp main body 31. [
The method according to claim 1,
The I bolt clamp (312) is a tap hole formed at one side of the middle of the clamp body (31) and having a tab (3121) having a diameter of 9 mm or more.
delete delete 2. The clamp according to claim 1, wherein the clamp (3)
A support line exposing step of cutting one end surface of the support line outer skin 132 surrounding the support line 12 to extract the support line 12 from the outer skin 132 of the support line;
Inserting the support wire (12) into the clamp (3) so that the end of the fixing bolt (32) is not located deeper than the thickness of the clamp body (31);
A wire winding step of winding the supporting wire (12) inserted into the clamp (3) at a desired position of the telephone main body by two to three turns;
Pulling a distal end of the supporting wire (12) wound around a telephone pole with the hollow (311) of the clamp body (31) to pass the supporting wire (12);
A support wire fixing step of pulling the support wire 12 to give a tension and then rotating the fixing bolt 32 to press the support wire 12 so that the support wire 12 does not move;
The work of loosening the end portions of the plurality of small wire 121 of the support wire 12 to bundle the support wire 12 pulled into the clamp 3 together with the support wire pulled out by the clamp 3 is repeated a predetermined number of times Repeating support line binding steps;
And a tape finishing step of wrapping and finishing a portion where the cable body 11 and the supporting line 12 are separated from each other in the self-supporting optical cable 1 in order to finish a part thereof. I Bolt Clamp
A support line binding method using a clamp (3) that binds a support line (12) to a telephone main body (2) at regular intervals to support a line laid out with a self supporting optical cable (1)
The self-supporting optical cable (1) includes a cable main body (11) accommodating an optical fiber therein;
A supporting line 12 formed by twisting a plurality of strands 121 in the inside in order to support the cable main body 11;
The outer skin 131 surrounding the cable main body 11 and the outer skin 132 surrounding the support line 12 and the outer skin 131, And a sheath (13) composed of an outer skin (133) connecting the skin (132)
The clamp (3) comprises a clamp body (31) having a hollow (311) in the center in the form of a circular pipe through which the support wire (12) has passed and is retracted;
A bolt body 321 formed with a male screw 3211 coupled to the clamp body 31 and pressing the support line 12 to be passed through the clamp body 31 and a bolt head 322, (32)
The fixing bolt 32 is inserted into the clamp main body 31. When the fixing bolt 32 is rotated, the fixing bolt 32 is moved up and down so that the end of the fixing bolt 32 is connected to the supporting line 12 And a bolt coupling hole 312 is formed in the bolt coupling hole 312,
The bolt coupling hole 312 may be a hole having a tab 3121 having a diameter of 9 mm to 15 mm formed at one side of the thickness of the intermediate portion of the clamp body 31 or a bolt hole 3122 formed in the clamp body 31 And a coupling nut nut 3123 which is welded to an upper portion of the bolt hole 3122 and has a female screw 312311 formed thereon,
The supporting line binding method includes a supporting line exposing step of cutting one end surface of the outer skin 132 surrounding the supporting line 12 to extract the supporting line 12 from the outer skin 132 of the supporting line;
Inserting the support wire (12) into the clamp (3) so that the end of the fixing bolt (32) is not located deeper than the thickness of the clamp body (31);
A wire winding step of winding the supporting wire (12) inserted into the clamp (3) at a desired position of the telephone main body by two to three turns;
Pulling a distal end of the supporting wire (12) wound around a telephone pole with the hollow (311) of the clamp body (31) to pass the supporting wire (12);
A support wire fixing step of pulling the support wire 12 to give a tension and then rotating the fixing bolt 32 to press the support wire 12 so that the support wire 12 does not move;
A plurality of wires 121 of the support wire 12 are loosely pulled one by one and the support wire 12 pulled into the clamp 3 and the support wire pulled out by the clamp 3 are bundled together and wound around a certain number of times A support line binding step in which
A tape finishing step of wrapping and finishing a portion where the cable main body 11 and the supporting line 12 are separated from the self supporting optical cable 1 to finish the part is finished by a support line binding method using an I bolt clamp
The method according to claim 6,
The supporting line exposing step may include a supporting line outer skin section dissection step of dissecting the covering section of the supporting skin outer skin 132 so that the supporting line 12 can be pulled out from the skin outer skin 132;
Removing the support line (12) from the incised portion;
Making the support line at a 90 degree angle with the cable body,
The supporting line fixing step includes the steps of pulling the supporting line 12 to apply tension thereto;
And pressing the supporting line by rotating the fixing bolt in a tensioned state,
The supporting line binding step includes a step of loosening the twisted wire 121 to one end of the clamp 3;
The support wire 12 and the support wire 12 drawn out from the clamp 3 are bundled together to the main wire of the support wire 12 by bringing the wire wire 121 into contact with one end of the clamp 3, Tightly winding until it is finished;
A step of loosening the strand 121 and repeating the step of winding the strand 121 to repeat the operation to the remaining strand 121. [

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