JP7025206B2 - How to route a wiring tool and a long cable - Google Patents

Description

The present invention relates to a wire-passing tool (wire-passing jig) used when passing a long cable (hereinafter referred to as a cable) into a protective pipe, and a method for passing a long cable using the same wire-passing tool.

Such a wire-passing tool is called a nominal wire in the industry, and is a tip guide provided with cable connection portions at both ends of a spiral wire rod (Patent Document 1) made of a single wire or a stranded wire made of a synthetic resin monofilament. The members are joined together. The tip guide member is generally configured by connecting a tip metal fitting (metal block) having a through hole for connecting a cable to be pulled into a pipe to the tip of a flexible wire made of a stranded wire of a stainless steel wire. (Patent Document 2).

Japanese Unexamined Patent Publication No. 11-352883 Japanese Unexamined Patent Publication No. 6-165328

In this conventional nominal wire, the end of the cable is inserted into the through hole of the tip metal fitting of the tip guide member, folded back, and twisted so as not to fall off. However, when the end of the cable that has passed through the through hole is folded back, the entire diameter including the tip fitting and the folded cable becomes large as a whole at the through hole portion, or the cable rotates at the insertion portion into the through hole. It will (rotate) and become an obstacle when passing through the pipe. Friction resistance increases due to interference with the inner wall of the pipe or existing elements in the pipe, sometimes making it impossible to pass the wire. If the cable is a hard cable containing a hard wire, the diameter will be significantly increased (it will become significantly thicker at the through hole), and if the cable is a soft cable with multiple soft-coated wires built-in, the wire will be broken. The possibility increases. As the hard cable to be the subject of the present invention, a drop cable having an optical fiber core wire and a metal support wire can be exemplified, and as a soft cable, a LAN cable can be exemplified.

INDUSTRIAL APPLICABILITY Based on the above awareness of the problem of the conventional wire passage tool, the present invention can reduce the risk of disconnection without increasing the diameter at the cable connection portion (it is possible to suppress the increase in diameter). The purpose is to obtain a wiring tool.
Further, the present invention provides a wire-passing tool that can push the cable directly into the pipe to pass the wire without using a spiral wire when the cable is hard by suppressing the increase in diameter. The purpose is to get.

The present invention is, in the aspect of the wire-passing tool, a wire-passing tool for passing a long cable in a pipe, and a flexible member made of a member different from the rod-shaped member is used as the rod-shaped member . A receiving portion formed on the outer surface of the rod-shaped member that receives the flexible member connecting portion for connecting, the hooking portion for hooking the end of the long cable, and the long cable hooked on the hooking portion. It is characterized in that a groove is formed.

Specifically, the hooking portion is a through hole, and it is practical that the receiving groove includes a pair of spiral grooves connected to the open ends on the front and back sides of the through hole. It is preferable that the pair of spiral grooves have an asymmetrical shape, and one of the spiral grooves has a deeper depth toward the end portion of the rod-shaped member opposite to the flexible member connecting portion. Further, it is preferable that one of the spiral grooves is connected to a straight groove parallel to the axis of the rod-shaped member on the end side opposite to the flexible member connecting portion of the rod-shaped member. Further, it is desirable to form a communication groove for communicating the pair of spiral grooves in the partition wall separating the pair of spiral grooves.

The long cable is, for example, a drop cable having an optical fiber core wire and a metal support wire .

The first wire-passing tool unit according to the present invention is configured by connecting the first flexible member having a tip metal fitting at the tip to the flexible member connecting portion of the wire-passing tool.

The second wire-passing tool unit according to the present invention is configured by connecting the flexible member connecting portions of the pair of wire-passing tools to both ends of the second flexible member.

The method for passing a long cable using the wire-passing tool unit according to the present invention is a wire-passing method using the first wire-through tool unit and the second wire-passing tool unit, and is the first-passage method. The step of hooking the metal support wire of a drop cable having an optical fiber core wire and a metal support wire as the long cable to the hooking portion and the receiving groove of the wire tool unit; The step of inserting the wire tool unit and the drop cable into the first pipe in this order with the tip metal fitting as the tip; the first passage protruding from the other end opening of the first pipe. The step of inserting the wire tool unit and the drop cable into the second pipe independent of the first pipe from one end opening; the first wire protruding from the other end opening of the second pipe. The step of removing the metal support wire from the tool unit; the step of hooking the metal support wire removed from the first wire tool to one of the pair of wire tools of the second wire tool unit; The step of hooking the second long cable to the other hooking portion and the receiving groove of the pair of wire passing tools of the second wire passing tool unit; and via the second wire tool unit. The combined drop cable having the metal support wire, the second wire tool unit, and the second long cable are inserted into the second pipe from the other end opening of the second pipe. It is characterized by having a step of pulling back, pulling out from the one-end opening of the second pipe, and passing the second long cable through the second pipe.

Specifically, the second long cable is, for example, a LAN cable.

According to the wiring tool of the present invention, the diameter of the cable connection portion is not increased (the diameter can be suppressed), and the risk of disconnection can be reduced. Further, by suppressing the increase in diameter, when the cable to be passed through is hard, the cable can be pushed in and passed through without using a spiral wire.

It is a figure which shows the usage mode of one Embodiment of the wire passing tool by this invention. 2A is an enlarged front view of the same line tool, FIG. 2B is an enlarged plan view of the same line tool, and FIG. 2C is an enlarged bottom view of the same line tool. It is an enlarged right side view of the same line tool alone. It is sectional drawing of the drop cable which is an example of the cable to which a wire is applied to which the wire tool by this invention is applied. It is a figure which shows the preparation state which connects the drop cable to the wiring tool by this invention. It is a figure explaining the use method of the wire passing tool by this invention. It is a figure which shows the use mode of another embodiment of the wire passing tool by this invention. FIG. 3 is an enlarged vertical sectional view of a LAN cable which is another example of a cable to be routed to which another embodiment of the wiring tool according to the present invention is applied. FIG. 9A is an enlarged plan view of an embodiment in which a single wire tool according to the present invention is formed of two members, and FIG. 9B is an enlarged front view of another embodiment of the wire tool according to the present invention. FIG. 9C is an enlarged bottom view of another embodiment of the same line tool before coupling. It is an enlarged right side view of another embodiment of the same line tool alone. It is sectional drawing which shows the relationship of two grooves which cut along the spiral groove of the same line tool alone. FIG. 12A is an enlarged plan view in which two members of another embodiment of the same line tool are connected, FIG. 12B is an enlarged front view in which two members of another embodiment of the same line tool are connected, and FIG. 12C is the same line. It is an enlarged bottom view which combined the two members of another embodiment of a line tool alone.

1 to 3 show a first embodiment of the line tool 10 according to the present invention. This embodiment is an embodiment in which a push-in wire is possible without using a conventional spiral wire (nominal wire) as a cable to be passed through the drop cable 20. The drop cable 20 is a uniform wire having the cross-sectional shape shown in FIG. 4, and is formed by covering an optical fiber core wire 21, a metal support wire 22, and a tension member 23 with a flame-retardant resin sheath 24 (FIG. 4). 5), the vertical and horizontal dimensions of the drop cable 20 are 4 mm and 2 mm, and the metal support wire 22 has a diameter of 1.2 mm (cover diameter 2.0 mm). The optical fiber core wire 21 (tension member 23) and the metal support wire 22 can be cut (separated) from the notch 25 portion. The optical fiber core wire 21, the metal support wire 22, and the tension member 23 are all wire rods having a circular cross section. Specifically, the drop cable 20 has a product name "drop cable, 0.25 mm wire type, 1-core type" manufactured by Sumitomo Electric Industries, Ltd., and is widely used as an optical fiber for indoor wiring of NTT.

The wire passing tool 10 is based on a metal rod-shaped member (cylindrical material) 11, and in order in the length direction thereof, the tip guide member connecting portion (flexible member connecting portion) 12 at one end and the length. It is provided with a thin-walled portion (flat portion) 13 and a receiving groove (spiral groove) 15 in the middle portion in the direction. A through hole (hooking portion) 14 orthogonal to the plate thickness plane is formed in the thin portion 13.

The wire passing tool 10 is for hooking the metal support wire 22 including the coating of the drop cable 20, and the diameter thereof forming a columnar shape as a whole is 5 mm in this embodiment. The receiving groove 15 has a main spiral groove 15a extending from the through hole 14 to the end of the rod-shaped member 11 opposite to the tip guide member connecting portion 12 starting from one surface of the thin-walled portion 13, and the other surface as the starting point. It has a sub-spiral groove 15b extending from the through hole 14 to the opposite side of the tip guide member connecting portion 12, and a straight groove 15c having a U-shaped cross section connected to the main spiral groove 15a. The main spiral groove 15a is a straight groove (cross-section U (U) -shaped groove) 15c on the end side of the rod-shaped member 11. The width and depth of the main spiral groove 15a and the sub-spiral groove 15b on the thin-walled portion 13 side are, for example, 2.5 × 2.0 mm, and the width and depth of the straight groove 15c at the end of the rod-shaped member 11 are, for example. It has a size of 3.0 × 4.0 mm and can accommodate a metal support wire 22 (coating diameter 2 mm) including a coating of the drop cable 20. The sub-spiral groove 15b does not reach the end of the rod-shaped member 11, and the communication groove 15e is formed on the separation wall 15d that separates the main spiral groove 15a and the sub-spiral groove 15b. The helix angle, lead, and groove length of the main spiral groove 15a are determined so that the metal support wire 22 can be held by the rod-shaped member 11 with sufficient frictional force in consideration of the axial length of the main spiral groove 15a forming portion. To give a specific example, for example, when the axial length of the main spiral groove 15a forming portion of the rod-shaped member 11 is 20 to 30 mm, the forming angle seen from the axial direction can be 180 ° to 270 °. .. Of course, the axial length and the forming angle are examples, and there is a degree of freedom.
The main spiral groove 15a and the sub-spiral groove 15b form a pair of spiral grooves connected to the open ends on the front and back of the through hole 14, and the straight groove 15c is a groove parallel to the axis of the rod-shaped member 11.

9 to 12 show another embodiment of the line tool 10'(the second embodiment of the line tool alone). This wire passage tool 10'is composed of two members, a rod-shaped flexible member connecting body 12X and a grooved member 15X, and the flexible member connecting body 12X has a tip guide member connecting portion (flexible member) at one end thereof. A connecting portion) 12 is formed, and a through groove 14X and a connecting groove 14Y are formed at the other end portion so as to be orthogonal to each other (cross each other) and have an open end portion on the grooved member 15X side and penetrate in the radial direction. Has been done. The radial through groove 14X is deeper than the radial connection groove 14Y by a distance a. The grooved member 15X is formed with a main spiral groove 15a, a sub-spiral groove 15b, a straight groove 15c, a separation wall 15d, and a communication groove 15e, as in the form of FIGS. 2 to 3, and the flexible member connecting body thereof. A flat connection portion 15Y that fits into the connection groove 14Y is formed at the end portion on the 12X side. When the flat portion 15Y of the grooved member 15X is fitted to the 14Y of the flexible member connecting body 12X and the flexible member connecting body 12X and the flat portion 15X are fixed by welding, for example, a flat rectangular shape is formed as shown in FIGS. 12A and 12C. A through hole 14R is formed.

Typical (main) usage modes of the above line tool 10 (10') are as follows. The tip guide member (flexible member) 16 shown in FIG. 1 is connected to the tip guide member connecting portion 12 of the wire tool 10 by a caulking ring 16c to form a first wire tool unit 100. The tip guide member 16 is formed by connecting a tip metal fitting (metal block) 16b to the tip (one end) of a flexible wire (first flexible member) 16a made of a stranded stainless steel wire, and to the other end. , The caulking ring 16c is provided. A caulking groove 12a for caulking the caulking ring 16c is formed in the tip guide member connecting portion 12, and the caulking ring 16c connects the flexible wire 16a and the tip guide member connecting portion 12. The tip metal fitting (metal block) 16b has a slightly larger diameter than the flexible wire 16a and has a hemispherical tip portion, and a through hole 16b1 orthogonal to the longitudinal direction is formed. The through hole 16b1 enables a usage mode in which a cable is inserted and connected as in the conventional product.

The metal support wire 22 of the drop cable 20 is coupled to the receiving groove 15 of the wire passing tool 10 of the first wire passing tool unit 100 as follows. The metal support wire 22 of the drop cable 20 is separated from the optical fiber core wire 21 (tension member 23) portion with the notch 25 as a separation line, and is hooked to the receiving groove 15. The metal support wire 22 has a hardness that requires a large force to bend by itself, and its tip is bent into an L shape using a tool such as pliers as shown in FIG. The L-shaped tip portion 22a is fitted into the through hole 14 (14R), and the linear portion 22b continuous with the tip portion 22a is fitted into the straight groove 15c from the main spiral groove 15a of the receiving groove 15 while being bent. The length of the tip portion 22a is set to be a length that fits within the through hole 14 (14R) (diameter of the rod-shaped member 11) (in the illustrated example, it is 2 mm).

Specifically, in this embodiment, the outer diameter including the coating of the metal support wire 22 is 2 mm, whereas the width and depth of the straight groove 15c (main spiral groove 15a) are 3.0 × 4. Since it is .0 mm (2.5 × 2.0 mm), the metal support wire 22 (including the coating) fits within the outer diameter of the rod-shaped member 11 at least at the end of the rod-shaped member 11 on the linear groove 15c side. .. In this way, when the metal support wire 22 is housed in the outer diameter of the rod-shaped member 11 (wire-shaped member 10), the through hole 14 (14R) and the receiving wire of the wire-shaped member 10 (rod-shaped member 11) are received as needed. An adhesive tape is wrapped around the outer periphery of the groove 15 to prevent the metal support wire 22 from falling off (partially separated) from the wire passing tool 10 (main spiral groove 15a). The straight groove 15c is straightened so that the metal support wire 22 wound around the main spiral groove 15a extends parallel to the axis of the rod-shaped member 11.

In this way, the first wire-passing tool unit 100 in which the metal support wire 22 of the drop cable 20 is coupled to the wire-passing tool 10 has an opening at one end of the pipe with the tip metal fitting 16b of the tip guide member 16 at the head. It is pushed and inserted into the same pipe from the above (FIGS. 1 and 6). In this first usage mode, the first line tool unit 100 is opened to the outside on the second floor 2F side of the pipe P connected to the first floor 1F in the house H from the outside of the second floor 2F of the house H shown in FIG. It is pushed and inserted into the opening (one end opening) from the outside, passes through the pipe P, protrudes into the room from the opening (the other end opening) on the first floor 1F side of the pipe P, and is supported by metal in the room on the first floor 1F. Removed from line 22. Since the metal support wire 22 of the drop cable 20 has sufficient hardness, it can be pushed and inserted into the pipe P. Further, the tip metal fitting 16b having a hemispherical tip portion facilitates insertion into the pipe P. When the tip metal fitting 16b of the tip guide member 16 protrudes from the other end opening of the pipe P (when the face is exposed), one end of the metal support wire 22 (drop cable 20) is pulled out from the other end opening of the pipe P. Since the line of the drop cable 20 into the pipe is completed by the above operation, the first line tool unit 100 (line tool 10) is removed from the metal support line 22. The pipe P is, for example (in the current house), a synthetic resin bellows pipe (flexible CD pipe) having an outer diameter of 14 mm, and is piped so as to have a curvature (curvature radius of a certain value or more) that meets the building standard. To.

FIG. 6 simultaneously shows another mode of use of the main line tool 10. In this usage mode, the drop cable 20 is passed from the outside of the house H into the first pipe P1 connected from the outside of the second floor 2F of the house H to the first floor 1F of the house H (same as the first usage mode). The main line tool 10 is used in a manner in which the LAN cable (second long cable) 30 is passed through the second pipe P2 which is connected to the first floor 1F to the second floor 2F in H and is independent of the pipe P1. The above-mentioned first line tool unit 100 and the second line tool unit 200 are used. As shown in FIG. 8, the LAN cable 30 contains a plurality of (for example, eight) homogeneous flexible metal core wires 31 in a sheath.

As shown in FIG. 7, the second wire-passing tool unit 200 has the same structure as the wire-passing tool 10 described above by caulking rings 16c at both ends of the flexible wire (second flexible member) 16a'. The wire tool 10 is connected in the opposite direction. For convenience, one of the pair of wire-passing tools 10 is a one-sided wire-passing tool 10X, and the other is a other-sided wire-passing tool 10Y.

First, as in the first usage mode described above, the drop cable 20 (metal support wire 22) is connected to the one-end wire tool 10X from the opening (one end opening) on the second floor 2F outdoor side of the pipe P1. The wire passage tool unit 100 of 1 is inserted with the tip guide member 16 (tip metal fitting 16b) at the head. When the tip guide member 16 (tip fitting 16b) protrudes from the opening on the first floor 1F side of the pipe P1, the tip guide member 16 (tip fitting 16b) is opened on the first floor 1F side of the pipe P2. It is inserted from the portion (one end opening) and passed through the opening on the second floor 2F side (the other end opening). In this state, a series of drop cables 20 are passed through the pipe P1 and the pipe P2.

Next, the first wire tool unit 100 is removed from the drop cable 20 exposed from the opening on the second floor 2F side of the pipe P2. That is, the drop cable 20 (metal support wire 22) connected to the wire tool 10 of the first wire tool unit 100 is disconnected by the operation opposite to that at the time of coupling. The second wire tool unit 200 is connected to the drop cable 20 (metal support wire 22) exposed indoors from the opening on the second floor 2F side of the pipe P2.

That is, the drop cable 20 (metal support wire 22) exposed indoors from the opening on the second floor 2F side of the pipe P2 is attached to the one-end wiring tool 10X of the second wiring tool unit 200. Connect by the same work as the work for the wire passage tool unit 100 of 1. On the other hand, the LAN cable 30 is connected to the other end wiring tool 10Y. As described above, since the LAN cable 30 includes a plurality of (8 in the illustrated example) flexible metal core wires 31, a plurality of core wires (for example, 4 wires) selected from these flexible metal core wires 31 can be used (2). (Each book), one of which is inserted into the through hole 14 (14R) of the other end wire tool 10Y to guide it from the main spiral groove 15a to the straight groove 15c, and the other from the sub spiral groove 15b to the communication groove 15e. The two bundles of flexible metal core wires 31 that have merged are connected by a knot portion 31c (FIG. 7). The number of core wires to be divided into two bundles is preferably 4 at maximum and 2 at minimum, and excess core wires that cannot be stored in the other end wire passing tool 10Y are cut off. In this way, when the flexible metal core wire 31 of the LAN cable 30 is connected to the other end wire passage tool 10Y, the through hole 14 (14R) of the other end wire passage tool 10Y (rod-shaped member 11) and the outer periphery of the receiving groove 15 are formed. Wrap an adhesive tape to prevent the LAN cable 30 from falling off (partially detached) from the other end wire tool 10Y (main spiral groove 15a).
In the LAN cable 30, one of the two bundles of flexible metal core wires 31 is fitted into the straight groove 15c of the other end communication tool 10Y, wound around the main spiral groove 15a, the tip portion is inserted into the through hole 14 (14R), and the other is inserted. It may be fitted in the straight groove 15c and the communication groove 15e, wound around the subspiral groove 15b, and the tip portion may be inserted into the through hole 14 (14R) from the opposite side to join one and the other.
In the LAN cable 30, the tip of the flexible metal core wire 31 of the entire bundle is inserted into the through hole 14 (14R) of the other end wire passing tool 10Y, and the bundle on the sheath side is guided from the main spiral groove 15a to the straight groove 15c and penetrated. The bundle on the tip end side inserted into the hole 14 (14R) may be passed through the auxiliary spiral groove 15b through the communication groove 15e and merged with the straight groove 15c, and the merged two bundles of flexible metal core wires 31 may be connected.

In this way, the drop cable that has been connected to the pipe P2 at one end of the second wire tool unit 200 and is exposed indoors from the opening on the second floor 2F side of the second pipe P2. After connecting 20 (metal support wire 22) and connecting the LAN cable 30 to the other end wire tool 10Y, the second wire tool unit 200 is connected from the opening end on the first floor 1F side of the second pipe P2. Pull the drop cable 20 (metal support wire 22) connected to. Then, the drop cable 20 (metal support wire 22), the second wire tool unit 200 (one end wire tool 10X, flexible wire 16a, other end wire tool 10Y), and the LAN cable 30 are placed in the pipe P2 in this order. Be drawn in. If the LAN cable 30 is exposed from the opening end on the 1st floor side of the pipe P2, the line of the LAN cable 30 into the pipe P2 is completed. (The drop cable 20 (metal support wire 22), the second wire tool unit 200, and the LAN cable 30 are pulled back into the second pipe P2 from the opening end on the second floor 2F side of the second pipe P2, and the second pipe P2 is used. Pull out from the opening end on the 1st floor side of the pipe P2, and pass the LAN cable 30 into the second pipe P2). After that, the second wire-passing tool unit 200 is removed from the drop cable 20 (metal support wire 22), and the unnecessary drop cable 20 is wound from the outside to complete the wire-passing work. The drop cable 20 and the LAN cable 30 exposed in the room on the first floor of the house H are terminally processed according to each, and are connected to an optical network unit (ONU), a router, and the like.

In the first line tool unit 100 and the second line tool unit 200 of the present invention, the outer diameter of the connection portion where the drop cable 20 (metal support wire 22) is connected to the line tool 10 is small, so that the pipes are piped. When the pipes P, P1 and P2 are pushed and inserted, the contact friction with the inner peripheral surfaces of the pipes P, P1 and P2 is small, and the drop cable 20 (metal support wire 22) itself can easily insert the pipes into the pipes.
Since the first wire tool unit 100 can insert the drop cable 20 itself only by the drop cable 20 (metal support wire 22), no other member is required for the insertion work, and the work efficiency is improved. good.
In the present embodiment, the drop cable 20 is shown as a long cable (first long cable), but the present invention is not limited to the shown drop cable 20, but can be applied to all long cables having a certain hardness and flexibility. Applicable. Further, the width and depth of the main spiral groove 15a formed in the rod-shaped member 11 in the above embodiment is 2.5 × 2 capable of accommodating the entire metal support wire 22 (coating diameter 2 mm) including the coating of the drop cable 20. Although it is set to 0.0 mm, the same effect can be obtained even if the metal support wire 22 has a dimension slightly protruding in the radial direction from the rod-shaped member 11. Further, the specific dimensions of the wire passing tool 10 are examples, and can be determined according to the specific dimensions of the long cable (drop cable 20) through which the wire is passed.
In the present embodiment, the LAN cable 30 is shown as the second long cable, but the present invention is not limited to the LAN cable 30, but a long cable having a plurality of core wires such as a telephone line and a length having a flexible core wire such as a coaxial cable. It can be applied to all scale cables.

The wire-passing tool 10'shown in the above embodiment has an advantage that it can be formed by processing an existing (commercially available) drill bit and can be provided at low cost. It does not ask the formation mode of the line tool 10'. When the receiving groove 15 (main spiral groove 15a, sub-spiral groove 15b, straight groove 15c) is used as the wire-passing tool unit 100, the receiving groove 15 (main spiral groove 15a, sub-spiral groove 15b, straight groove 15c) can hold the metal support wire 22 of the drop cable 20 regardless of its mode. When used as the first wire tool unit 100 and the second wire tool unit 200, the mode does not matter as long as the metal support wire 22 of the drop cable 20 and the metal core wire 31 of the LAN cable 30 can be held.

10 10': Wire-through tool 10X: One-sided wire-through tool 10Y: End-end wire-through tool 11: Rod-shaped member 12: Tip guide member connection part (flexible member connection part)
12X: Flexible member connecting body 12a: Groove 13: Thin wall portion 14 (14R): Through hole (hooking portion)
14X: Through groove 14Y: Connection groove 15X: Grooved member 15Y: Flat portion 15: Receiving groove 15a: Main spiral groove (reception groove)
15b: Sub-spiral groove (reception groove)
15c: Straight groove (reception groove, U-shaped cross section)
15d: Separation wall 15e: Communication groove (reception groove)
16: Tip guide member 16a: Flexible wire (flexible member, first flexible member)
16a': Flexible wire (second flexible member)
16b: Tip fitting 16c: Caulking ring 20: Drop cable (long cable, first long cable)
21: Optical fiber core wire 22: Metal support wire 22a: Tip portion 22b: Linear portion 23: Tension member 24: Flame-retardant resin sheath 25: Notch 30: LAN cable (second long cable)
31: Metal core wire 31c: Connection part 100: First wiring tool unit 200: Second wiring tool unit H: House LC: LAN cable P: Piping P1: First piping P2: Second piping

Claims (10)

It is a wiring tool for passing long cables in pipes.
For rod-shaped members,
A flexible member connecting portion for connecting a flexible member made of a member different from the rod-shaped member to the rod-shaped member ,
The hooking part that hooks the end of the long cable and
A receiving groove formed on the outer surface of the rod-shaped member for receiving the long cable hooked on the hooking portion, and
A wiring tool characterized by being formed. In the wiring tool according to claim 1, the hooking portion is a through hole, and the receiving groove includes a pair of spiral grooves connected to the open ends on the front and back of the through hole. In the wiring tool according to claim 2, the pair of spiral grooves have an asymmetrical shape, and the spiral groove has a deeper depth toward the end portion of the rod-shaped member opposite to the flexible member connecting portion. Helix tool. In the wiring tool according to claim 3, one of the spiral grooves is connected to a straight groove parallel to the axis of the rod-shaped member on the end side opposite to the flexible member connecting portion of the rod-shaped member. Line tool. The communication tool according to claim 3 or 4, wherein a communication groove for communicating the pair of spiral grooves is formed in the partition wall separating the pair of spiral grooves. In the wiring tool according to any one of claims 1 to 5, the long cable is a wiring tool that is a drop cable having an optical fiber core wire and a metal support wire. The wiring tool unit according to any one of claims 1 to 6, wherein a first flexible member having a tip metal fitting is connected to the flexible member connecting portion. A wire-passing tool unit in which the flexible member connecting portions of the pair of wire-passing tools according to any one of claims 1 to 6 are connected to both ends of the second flexible member. A method for passing a long cable using the first wiring tool unit according to claim 7 and the second wiring tool unit according to claim 8.
The step of hooking the metal support wire of the drop cable having the optical fiber core wire and the metal support wire as the long cable to the hooking portion and the receiving groove of the first wire passage tool unit;
The step of inserting the first wire tool unit and the drop cable into the first pipe in this order with the tip metal fitting as the tip;
The step of inserting the first wire tool unit and the drop cable protruding from the other end opening of the first pipe into the second pipe independent of the first pipe from the one end opening;
The step of removing the metal support wire from the first wire tool unit protruding from the other end opening of the second pipe;
The step of hooking the metal support wire removed from the first wire tool to one of the pair of wire tools of the second wire tool unit;
A step of hooking a second long cable to the other hooking portion and the receiving groove of the pair of wire passing tools of the second wire tool unit;
And the drop cable having the metal support wire, the second wire tool unit, and the second long cable connected via the second wire tool unit to the second pipe. A step of pulling back from the other end opening into the second pipe, pulling out from the one end opening of the second pipe, and passing the second long cable through the second pipe;
A method of passing a long cable, which is characterized by having. In the wiring tool according to claim 9, the second long cable is a method for passing a long cable, which is a LAN cable.

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