JP2013219849A - Wiring structure of on-vehicle antenna cord and assembly method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily protect a power line from an external interference material at a harness of an antenna cord composed of the power line and a plurality of coaxial lines.SOLUTION: At least three coaxial lines that transmit a radio wave signal received by an antenna are arranged so as to surround a power line that supplies an antenna amplifier with power, and at least both ends in a lengthwise direction of the arranged area are partially bound with an adhesive tape.

Description

  The present invention relates to a wiring structure and an assembling method for a vehicle-mounted antenna cord, and more particularly, to increase the number of components of a power supply line that needs to be protected from an external interference material among antenna cords including a plurality of coaxial lines and a power supply line. It is easy to protect.

  Wiring materials used as in-vehicle antenna cords consist of coaxial cables that transmit radio signals received by antennas and power wires that supply power to the antenna amplifier. Connect connectors to these wiring materials and protect these wiring materials. The harness for the antenna cord is assembled by attaching clamps to the material and the vehicle body.

  It is preferable that the protective material attached to the harness of the antenna cord mainly protects the electric wire from the edge, burr, etc. of the vehicle body panel in the middle of the wiring. In particular, it is necessary to prevent the edges and burrs from breaking the insulating coating of the power supply line and contact the core wire, and thus there is a case where it is required to surely protect only the power supply line in the harness of the antenna cord.

  However, since the power line and the coaxial line are converged and wired as an antenna cord harness, attaching a protective material to only the power line deteriorates workability in wire harness assembly work. Therefore, as shown in FIG. 10, conventionally, a plurality of coaxial lines W1 to W4 that converge with the power supply line Wp are also protected together with the power supply line Wp through a protective material made of the protective tube 100 or the like. An adhesive tape T is wound around and fixed to the wiring material and the protective material at both ends in the length direction.

  Conventionally, the present applicant has provided an important circuit wire holding portion 110a in a binding band 110 as shown in FIG. 11 in Japanese Utility Model Laid-Open No. 7-38708, and the important circuit wire holding portion 110a provides an important circuit wire WS. The general circuit wire W is positioned around the cable tie to bind the binding band 110, and the weight circuit wire W-S is surrounded by the general circuit wire W so that the important circuit wire W-S is surrounded. We are proposing technologies to protect

Actual Kaihei 7-38708

  In the case of protecting the power supply line and the coaxial line through the protective tube with the currently widely used protective material shown in FIG. 10, the protective tube becomes larger in diameter and takes a wiring space, and the protective tube is increased in weight and cost. Become high. Furthermore, there is a problem that the region to be protected through the inside of the protective tube has increased rigidity and is difficult to bend during the routing process.

  On the other hand, when the binding band 110 shown in FIG. 11 of Patent Document 1 is used, the binding band 110 itself has a special shape, which increases the cost. Further, in the process of placing the general circuit wire W around and winding the band with the important circuit wire (power supply wire) WS held by the important circuit wire holding part 110a, the important circuit wire WS May fall off the important circuit wire holding portion 110a and cannot be held at the center position surrounded by the general circuit wires.

  The present invention has been made in view of the above problems, and it is an object of the present invention to reliably protect a power line from an external interference material without using the protective material shown in FIG. 10 and the special binding band shown in FIG. .

  In order to solve the above-mentioned problem, the present invention is arranged such that at least three or more coaxial lines that transmit radio signals received by an antenna are arranged so as to surround a power supply line that supplies power to an antenna amplifier, and the arrayed area is arranged. An antenna cord routing structure is provided in which at least both ends in the length direction are partially bound with an adhesive tape.

  As described above, when at least three or more, preferably four, coaxial wires are used, and these coaxial wires having relatively large outer diameters are arranged at equal intervals to surround the central power source line, the coaxial line becomes the power source line. It is possible to prevent the edge or burr of the vehicle body panel from coming into contact with the central power supply line and causing damage such as breakage to the power supply line. Therefore, it is not necessary to insert the power line and the coaxial line through a protective tube or to surround the protective line with a protective sheet, and the coaxial line and the power line need only be partially taped and fixed to fix the arrangement. It is possible to prevent the occurrence of difficulty in bending due to enlargement, cost increase, and rigidity increase in the case of using.

As a first assembling method for providing the antenna cord wiring structure of the present invention, the present invention provides:
A power line insertion hole is provided at the center of the eyeplate, and a plurality of coaxial line insertion holes are provided at intervals in the circumferential direction around the entire circumference of the power supply line insertion hole.
Arranging the wire arrangement jig vertically at the required position in the wire wiring area of the wire harness assembly work table,
Insert the power line into the power line insertion hole of the wire arrangement jig, insert the coaxial line into the surrounding coaxial line insertion hole, and partially wrap the adhesive tape in a state where the power line is surrounded by a plurality of coaxial lines A method for assembling an antenna cord routing structure is provided in which a power line and a coaxial line are positioned and fixed, and then the wire arrangement jig is removed.

  The power line insertion hole and the coaxial line insertion hole provided in the electric wire arrangement jig may be through holes, and the electric wire arrangement jig may be removed by being pulled out along the wiring direction.

Further, the power line insertion hole and the coaxial line insertion hole are respectively communicated with a cut line from the side of the eyeplate, and the power line and the coaxial line are orthogonal to the wiring direction in the power line insertion hole and the coaxial line insertion hole. From the direction, it may be inserted horizontally through the cutting line, and removal of the wire arrangement jig may be pulled out in the horizontal direction.
As described above, when the electric wire can be inserted into the insertion hole of the electric wire arranging jig from the lateral direction orthogonal to the wiring direction, it can be used when connecting a connector to the electric wire terminal and the electric wire is inserted after the electric wire is inserted. Since the arrangement jig can be taken out in the lateral direction, the removal work can be easily performed.

In addition, as a second assembling method of the antenna cord wiring structure of the present invention,
Provided with a projecting base having a recess on the upper surface at the center in the width direction of a rectangular horizontal substrate, the recesses on the left and right outer surfaces of the projecting base are formed on the left and right coaxial line wiring part, and the bottom part in the recess of the projecting base A power line wiring part, and an electric wire arrangement jig with the upper part in the recess as a coaxial line wiring part,
Place the wire arrangement jig at the required position in the wire wiring area of the wire harness assembly work table,
A coaxial line is wired to each of the left and right coaxial line wiring portions of the wire arrangement jig, a power line is wired to the power line wiring portion, and the coaxial line is overlaid on the power line.
An antenna cord in which the power line and the coaxial line are positioned and fixed by partially wrapping an adhesive tape so that the power line is surrounded by a coaxial line with the electric wire arrangement jig, and then the electric wire arrangement jig is removed. A method for assembling the routing structure is provided.

  In the second assembling method, the concave portion and the concave portion provided on the surface of the electric wire arranging jig are used as the wiring portion of the power line and the coaxial line, and the coaxial line and the power line are fitted from above to the concave portion and the concave portion. Well, there is an advantage that it is possible to eliminate the need for the work of piercing the electric wire and to simplify the work of arranging the electric wire.

  Each of the wire arrangement jigs used in the first and second assembling methods has a clip provided with a screw groove or locking blade that projects from the lower end of the eyeplate and has a support shaft portion fastened with a screw at the lower end. It is preferable that the above is detachably attached to an attachment hole provided in the work table for assembling the wire harness.

  As described above, according to the in-vehicle antenna cord routing structure of the present invention, protection from external interference materials such as the edge of the vehicle body panel and burrs is particularly required among the wiring materials composed of the power line and the coaxial line. A power supply line is surrounded by a coaxial line having a relatively large outer diameter, and the coaxial line is used to form a wiring material arrangement structure in which an external interference material cannot directly contact the power supply line. In order to fix the arrangement structure, it is only necessary to partially wrap the wiring material with an adhesive tape, and a conventionally required protective tube or the like can be dispensed with. As a result, enlargement, weight, and cost increase of the harness of the antenna cord can be suppressed, the ease of bending of the harness is not impaired, and wiring workability is not hindered.

  In the method of assembling a wiring structure for an in-vehicle antenna cord according to the present invention, a coaxial cable and a power source are formed by using an electric wire arranging jig having a shape in which the power source line is forced to be positioned at the center of three or more coaxial lines. Since the harness is assembled by arranging the wires, the power supply wires can be accurately surrounded and protected by the coaxial wires. The wire arrangement jig is used only at the time of harness assembly and can be repeatedly used at the time of harness assembly, so that the cost is not increased.

It is a perspective view which shows the wiring structure of the antenna cord of this invention. It is the II-II sectional view taken on the line of FIG. The electric wire arrangement | sequence jig | tool of 1st Embodiment is shown, (A) is a front view, (B) is a side view. It is a perspective view which shows the state which has assembled the harness of the antenna cord on the work table for wire harness assembly using the said electric wire arrangement jig. It is a front view which shows the 1st modification of the electric wire arrangement jig of the said 1st Embodiment. It is a front view which shows the 2nd modification of the electric wire arrangement jig of the said 1st Embodiment. It is a front view showing the 3rd modification of the electric wire arrangement jig of the 1st embodiment. It is a perspective view of the electric wire arrangement jig of a 2nd embodiment. It is a perspective view which shows the arrangement method of the power wire and coaxial line using the electric wire arrangement jig | tool of 2nd Embodiment. It is a figure which shows a prior art example. It is a figure which shows another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show a first embodiment.
FIG. 1 shows the harness 5 of the antenna cord 1. The antenna cord 1 is composed of a communication line of a coaxial line 2 and a power line 3 for transmitting a radio wave signal received by an antenna (not shown) of a communication module such as a radio, digital television, GPS, or telephone. The terminals of the two coaxial lines 2A and 2B are connected to one connector 4A, and the terminals of the two coaxial lines 2C and 2D and the power supply line 3 are connected to the other connector 4B. The four coaxial lines 2A to 2D and one power line 3 are converged as one harness 5 and routed inside the vehicle.

  As shown in FIG. 2, the coaxial wires 2 </ b> A to 2 </ b> D have a core wire 13 composed of an inner conductor 11 made of annealed copper wire or the like and an insulating coating layer 12 covering the outer circumferential surface of the inner conductor 11, and an outer circumferential surface of the core wire 13. It comprises an outer conductor 14 made of a braided wire of soft copper wire to cover, and a sheath 15 of an insulating coating layer covering the outer peripheral surface of the outer conductor 14. The outer conductor 14 is a shield layer that blocks noise from the core wire 13 and blocks radio waves generated from the core wire 13 from acting on other wires as noise. The power supply line 3 is made of an electric wire in which a core wire 16 made of a stranded wire of a number of strands made of an annealed copper wire or the like is covered with an insulating coating layer 17.

  The harness 5 of one antenna cord composed of the four coaxial lines 2A to 2D and the one power line 3 has the power line 3 as a center and the four coaxial lines 2A to 2D are arranged on the outer periphery thereof. The power supply lines 3 are arranged so as to surround the entire circumference. Thus, the arrangement in which one power supply line 3 is surrounded by the four coaxial lines 2A to 2D may be only the wiring region where the edges and burrs of the vehicle body panel are generated, or the power supply line 3 and the coaxial line 2A. It is good also considering the whole area | region where the five wiring materials which consist of -2D were converged as the said arrangement | sequence form.

  Further, in order to position and fix the five electric wires in the arrangement form, both ends in the length direction of the arrangement portion are fixed with adhesive tapes 18A and 18B. If the arrangement portion is long or is likely to be disturbed due to bending, the adhesive tape 18C is wound around the intermediate region sandwiched between both ends in the length direction and arranged. The positioning may be fixed with

A method for assembling the wiring members in the arrangement shown in FIGS.
A U-shaped wire receiving jig 21 for wiring is erected on a work table 20 for assembling a wire harness shown in FIG. 4, and the electric wire is supported by the wire receiving jig 21.
When the power cord 3 is surrounded by the coaxial lines 2 </ b> A to 2 </ b> D with substantially the entire length of the harness 5 of the antenna cord, an electric wire arranging jig 22 is erected on the work table 20 upstream of the wiring region.

The electric wire arranging jig 22 is made of a resin molded product having the shape shown in FIGS. That is, one power supply line insertion hole 24 is drilled in the center of the rectangular flat plate 23, and four coaxial line insertion holes 25A to 25D are penetrated at an interval of 90 degrees around the power supply line insertion hole 24. A perforated eye plate is provided.
With the power supply line insertion hole 24 and the coaxial line insertion holes 25A to 25D in the horizontal direction and the flat plate 23 in the vertical direction, the support shaft portion 26 protrudes downward from the center of the lower end surface of the flat plate 23, and at the lower end thereof A screw groove 27 for fastening with the screw N is provided. The lower end portion of the support shaft portion 26 is inserted and locked in a mounting hole provided in the work table 20 and fastened with a screw N to stand the flat plate 23 at a required height. At the time of removal, the screw N is loosened and the support shaft part 26 is pulled up on the work table 20 and pulled out downstream in the wiring direction.

  The electric wire arranging jig 22 made of the eye plate is erected on the work table 20, the power line 3 is passed through the central power line insertion hole 24, and the remaining four coaxial lines 2A to 2D are respectively connected to the coaxial line insertion holes. Pass through 25A-25D. The power supply line 3 is surrounded by four coaxial lines 2A to 2D at the position where the electric wire arrangement jig 22 is passed, and the power line 3 and the coaxial lines 2A to 2D are supported by the electric wire receiving jig 21 on the downstream side. And arrange.

After the wiring operation of the one power supply line 3 and the four coaxial lines 2A to 2D, the adhesive tape 18A is wound on the upstream side close to the electric wire arranging jig 22, and the power supply line 3 is set as the center, and the coaxial line 2A Locating and fixing with 2D arranged on the outer periphery.
Next, the screw N for fixing the electric wire arranging jig 22 to the work table 20 is loosened, and the electric wire arranging jig 22 is moved downstream in a state where the support shaft portion 26 is pulled out above the work table 20, and the power line 3 is connected. It arranges again in the state surrounded by the four coaxial lines 2A to 2D, and the adhesive tape 18C is wound around a predetermined interval to be partially fixed, and the arrangement is maintained. Finally, the adhesive tape 18B is wound even at a position close to the downstream end, and the power supply line 3 is arrayed and held in a state surrounded by the coaxial lines 2A to 2D over the entire length, and assembled as the antenna cord harness 5 shown in FIG.

  If the electric wire arrangement | sequence jig | tool 22 provided with the above-mentioned eyeplate is used, the power wire 3 will be reliably arranged in the state enclosed by coaxial line 2A-2D, and the adhesive tape 18 (18A, 18B, 18C) will be wound partially Can be converged as a harness 5. As described above, the power supply line 3 can be protected without attaching a protective tube or a protective sheet, and without causing enlargement, weight, cost increase, and bending difficulty of the harness 5.

Modification examples of the electric wire arranging jig 22 are shown in FIGS.
In the first modification shown in FIG. 5, instead of providing a screw groove at the lower end of the support shaft portion 26, a blade-like clip 28 is formed integrally. The clip 28 can be fixed with one touch only by being inserted into a locking hole provided in the work table. Further, when the electric wire arranging jig 22 is removed from the work table, it can be easily removed from the work table by contracting the blade portion of the clip 28.

  In the second modification shown in FIG. 6, one power line insertion hole 24 is provided at the center of the flat plate 23 of the electric wire arranging jig 22, and three coaxial line insertion holes 25 </ b> A to 25 </ b> C are provided at 120 ° intervals around the power supply line insertion hole 24. Provided. In this case, the power supply line 3 can be protected from the external interference material even if the outer periphery of the power supply line wired in the center is surrounded by three coaxial lines.

In the third modification shown in FIG. 7, the power supply line insertion hole 24 and the coaxial line insertion holes 25 </ b> A to 25 </ b> D provided in the flat plate 23 are not through holes, and extend obliquely downward from one side of the rectangular flat plate 23. The cut lines 24L and 25AL to 25DL communicate with each other.
Each of the power supply line and the coaxial line can be inserted into and removed from the electric wire insertion hole 24 and the coaxial line insertion holes 25A to 25D through the cut lines 24L and 25AL to 25DL from the direction orthogonal to the wiring direction.

  From the direction orthogonal to the wiring direction as described above, when the power supply line can be inserted into the power supply line insertion hole 24 by the so-called lateral insertion and the coaxial line can be inserted into the coaxial line insertion holes 25A to 25D, connectors are connected to these electric wire terminals. Even when they are connected, the power supply line 3 and the coaxial lines 2A to 2D can be arranged to surround the power supply line 3 with the coaxial lines 2A to 2D by using the electric wire arrangement jig 22. Moreover, when removing the electric wire arrangement | sequence jig | tool 22, it is not necessary to move to the downstream end of these electric wire groups, and it can be extended and removed at a required position.

8 and 9 show the electric wire arranging jig of the second embodiment.
The electric wire arranging jig 30 is provided with a protruding base 32 having both side surfaces protruding in a direction away from each other at a central portion in the width direction of a rectangular horizontal substrate 31, and a concave portion 32a is provided on the upper surface of the protruding base 32. In addition, depressions 33 and 34 are provided between both side surfaces and the upper surface of the horizontal substrate 31. The left and right depressions 33 and 34 are left and right coaxial line wiring portions, the bottom portion in the recess 32a of the protruding base 32 is a power line wiring portion, and the upper portion in the recess 32a is a coaxial line wiring portion.
A support shaft portion 35 projects from the center of the lower surface of the horizontal substrate 31, and a blade-type clip 36 is integrally formed at the lower end of the support shaft portion 35.

Similar to FIG. 4, the wire arrangement jig 30 is erected at a required position in the wiring region of the work table for assembling the wire harness.
As shown in FIG. 9, the coaxial lines 2A and 2B are respectively wired to the coaxial line wiring portion composed of the left and right depressions 33 and 34 of the electric wire arranging jig 30, and the power line 3 is connected to the power line wiring portion on the bottom side of the recess 32a. And the coaxial line 2C is overlapped on the power supply line 3 for wiring. The power supply line 3 is surrounded by the coaxial lines 2A to 2C with the wiring. In this state, the adhesive tape is partially wound and positioned and fixed in the arrangement state.
Since other work procedures are the same as those in the case of using the electric wire arranging jig 22 of the first embodiment, description thereof is omitted.

  Since the wire arrangement jig 30 only needs to insert the coaxial lines 2A to 2C and the power supply line 3 from above into the recesses 32a and the depressions 33 and 34, the coaxial line and the power supply line 3 are inserted into the wire arrangement jig 30. Good sex. Further, the coaxial line and the power supply line 3 can be removed from the electric wire arranging jig 30 only by floating upward, and the workability is also good in this respect. Further, there is an advantage that the electric wire arranging jig 30 can be used even if a connector is connected to the end of the coaxial line and the power line.

DESCRIPTION OF SYMBOLS 1 Antenna cord 2 (2A-2D) coaxial line 3 Power supply line 5 Antenna cord harness 18 Adhesive tape 20 Work harness 22 for wire harness assembly Electric wire arrangement jig 24 Power supply line insertion hole 25A-25D Coaxial line insertion hole 26 Support shaft 27 Thread groove 28 Clip

Claims (5)

  At least three or more coaxial lines that transmit radio signals received by the antenna are arranged so as to surround the power supply line that supplies power to the antenna amplifier, and at least both ends in the length direction of the arranged area are covered with adhesive tape. An antenna cord routing structure characterized by partial binding. An assembly method for an antenna cord routing structure according to claim 1,
A wire arrangement jig provided with a power plate insertion hole at the center of the flat plate and a plate having a plurality of coaxial line insertion holes around it,
The grid plate of the wire arrangement jig is arranged vertically at a required position in the wire wiring area of the wire harness assembly work table,
Insert the power line into the power line insertion hole of the wire arrangement jig, insert the coaxial line into the surrounding coaxial line insertion hole, and partially wrap the adhesive tape in a state where the power line is surrounded by a plurality of coaxial lines A method for assembling an antenna cord routing structure in which a power line and a coaxial line are positioned and fixed, and then the wire arrangement jig is removed. The power supply line insertion hole and the coaxial line insertion hole provided in the electric wire arrangement jig are formed of through holes, and the removal of the electric wire arrangement jig is pulled out along the wiring direction and removed.
Alternatively, the power line insertion hole and the coaxial line insertion hole are respectively connected to a cut line from one side of the rectangular eye plate, and the power line and the coaxial line are connected to the power line insertion hole and the coaxial line insertion hole, respectively. The method for assembling the antenna cord routing structure according to claim 2, wherein the wire arrangement jig is inserted horizontally through the cutting line from a direction perpendicular to the wiring direction, and the electric wire arranging jig is pulled out in the horizontal direction. An assembly method for an antenna cord routing structure according to claim 1,
Provided with a projecting base having a recess on the upper surface at the center in the width direction of a rectangular horizontal substrate, the recesses on the left and right outer surfaces of the projecting base are formed on the left and right coaxial line wiring part, and the bottom part in the recess of the projecting base A power line wiring part, and an electric wire arrangement jig with the upper part in the recess as a coaxial line wiring part,
Place the wire arrangement jig at the required position in the wire wiring area of the wire harness assembly work table,
A coaxial line is wired to each of the left and right coaxial line wiring portions of the wire arrangement jig, a power line is wired to the power line wiring portion, and the coaxial line is overlaid on the power line.
An antenna cord in which the power line and the coaxial line are positioned and fixed by partially wrapping an adhesive tape so that the power line is surrounded by a coaxial line with the electric wire arrangement jig, and then the electric wire arrangement jig is removed. Assembling method of wiring structure. Provide a screw groove to be fastened with a screw at the lower end of the wire arrangement jig,
Or the clip provided with the latching blade protrudes, and the lower end of the said wire arrangement jig or the said clip is detachably attached to the attachment hole provided in the said wire harness assembly work table. 5. The method for assembling the antenna cord routing structure according to any one of 4 above.

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