JP2014146488A - Wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness that easily achieves electromagnetic shielding function and omits a grounding wire relaying between a drain wire and a reference potential point when the reference potential point exists in the intermediate position of the shield region.SOLUTION: A drain wire 2 includes a main wire part 21 along a core wire 1, and a branched wire part 22 branched from the main wire part 21. A metallic foil 4 is wound around a bundle of the main wire parts 21 of the drain wire 2 and the core wire 1. In addition, the metallic foil 4 is wound in a state in contact with the main wire part 21 of the drain wire 2 as well as in a state in which a first edge part 41 and a second edge part 42 on the opposite side of the first edge part are along the extension direction of the main wire part 21. A secondary coating 5 is composed of a tape of a non-conductive material wound on the metallic foil 4, and covers the metallic foil 4.

Description

  The present invention relates to a wire harness having an electromagnetic shielding function.

  In a conventional wire harness, when an electromagnetic shielding function for shielding electromagnetic waves is required, a shielded electric wire is used. Moreover, when the edge part of a shielded electric wire and the reference | standard electric potential point of housing | casing grounding are separated, the shielded electric wire with a drain wire as shown in patent document 1 is used.

  The shielded electric wire with a drain wire includes a core electric wire having a primary coating, a drain wire without a coating, a metal foil covering the core electric wire and the drain wire, and a secondary coating covering the metal foil. The core wire is an insulated wire. The secondary coating is a synthetic resin member formed into a tubular shape that bundles and covers the core electric wires and the drain wires. The secondary coating is formed by extrusion. The metal foil is formed along the inner surface of the secondary coating and is in contact with the drain line.

  Insulated wires may be referred to as covered wires. The insulated wire has a linear conductor and an insulating coating (primary coating) covering the periphery of the conductor.

  On the other hand, the shielded wire shown in Patent Document 2 includes a shield tape having a three-layer structure wound spirally around the core wire and the drain wire. A shield tape having a three-layer structure has an intermediate layer made of a tape-like insulator and conductor layers formed on both sides of the intermediate layer.

Japanese Utility Model Publication No. 6-31029 JP 2002-140938 A

  Conventionally, when the reference potential point exists at an intermediate position between both ends of the shield region covered with the metal foil, the drain wire extending from the end of the secondary coating is connected to one end of the ground wire having the coating. . Further, the other end of the ground wire is connected to a reference potential point. Thus, the drain line is electrically connected to the reference potential point existing at the intermediate position of the shield region via the ground wire.

  Therefore, when a conventional shielded wire is employed, a ground wire having a length corresponding to the distance between the end of the shield region covered with the metal foil and the reference potential point is required. When such a ground wire is provided in the wire harness, the weight, thickness, and cost of the wire harness increase.

  In addition, the shielded electric wire shown in Patent Document 2 requires a step of forming a secondary coating on the outer periphery of the shield tape in addition to the step of winding a three-layer shield tape around the electric wire for the production thereof. The step of forming the secondary coating is, for example, a step of winding an insulating tape in a spiral shape or a step of extruding a synthetic resin.

  To form the shield layer and the secondary coating, it is very complicated to repeat the process of winding the tape in a spiral shape twice. In addition, the extrusion of the synthetic resin for forming the secondary coating requires more troublesome work and a large-scale molding apparatus.

  The present invention provides a wire harness that can easily realize an electromagnetic shielding function and can omit a ground wire that relays between a drain line and a reference potential point when the reference potential point exists at an intermediate position of the shield region. For the purpose.

The wire harness which concerns on the 1st aspect of this invention is equipped with each component shown below.
(1) A 1st component is a core electric wire which consists of an insulated wire.
(2) The second component is a drain line. The drain wire has a main line portion made of a conductive wire along the core electric wire and a branch line portion made of a conductive wire branched from the main line portion at an intermediate position between both ends of the main wire portion.
(3) The third component is a metal foil. This metal foil is wound around the main wire portion of the drain wire and the bundle of core wires to cover the periphery of the bundle. Further, the metal foil is wound in a state where it is in contact with the main line portion of the drain wire, and in a state where the first edge portion and the second edge portion on the opposite side are along the extending direction of the main line portion of the drain wire. ing.
(4) A 4th component consists of a tape of the nonelectroconductive material wound around the said metal foil, and is a secondary coating | cover which covers the said metal foil.

  The wire harness according to the second aspect of the present invention is one aspect of the wire harness according to the first aspect. The wire harness which concerns on a 2nd aspect WHEREIN: The said secondary coating | cover is the adhesive tape wound around the said metal foil.

  The wire harness according to the third aspect of the present invention is one aspect of the wire harness according to the first aspect or the second aspect. The wire harness which concerns on a 3rd aspect is further provided with the some binding material which binds the several places in the main line part of the said drain wire with the said core electric wire. In this case, the metal foil is wound from the outside of the plurality of binding materials.

  The wire harness according to the fourth aspect of the present invention is an aspect of the wire harness according to any one of the first aspect to the third aspect. In the wire harness according to the fourth aspect, the core electric wire has a first portion along the main line portion of the drain wire and a second portion branched from the first portion at an intermediate position between both end portions of the first portion. ing. In this case, the metal foil is wound around the bundle of the main portion of the drain wire and the first portion of the core wire.

  The wire harness which concerns on each said aspect is equipped with the metal foil which covers the circumference | surroundings of a core electric wire, and the drain wire for connecting a metal foil to a reference potential point. Therefore, the wire harness which concerns on each said aspect has an electromagnetic shielding function.

  Moreover, in the wire harness according to each aspect described above, the branch line portion of the drain wire branches off from the main line portion of the drain wire covered with the metal foil. That is, the branch line portion of the drain line branches off from the main line portion of the drain line at an intermediate position of the shield region.

  Therefore, when the reference potential point exists at an intermediate position of the shield region, a configuration in which the branch line portion of the drain line branches from the main line portion at a position close to the reference potential point can be employed. In this case, the branch line portion of the drain line can be directly connected to the reference potential point.

  That is, when the reference potential point exists at an intermediate position in the shield region, the ground wire that relays the end of the drain line along the core wire and the reference potential point can be omitted. As a result, an increase in the weight, thickness and cost of the wire harness can be avoided.

  Furthermore, according to the wire harness which concerns on said each aspect, an electromagnetic shielding function is realizable by the simple process shown below. First, a core electric wire and a drain wire that have been subjected to terminal processing in advance are prepared. Here, the process of performing terminal processing such as removal of the coating (primary coating) and crimping of the crimp terminal on each core wire can be easily automated by a conventional wire processing apparatus. Similarly, a process of performing terminal processing such as crimping of a crimp terminal on the drain wire can be easily automated by a conventional wire processing apparatus.

  Next, a process of winding a tape-like secondary coating around the outer periphery of the metal foil while wrapping a part of the drain wire (main line portion) and the bundle of core wires with the metal foil is performed. As will be described later, such a process can be easily performed. Therefore, according to the wire harness which concerns on said each aspect, an electromagnetic shielding function is easily realizable.

  Moreover, the secondary coating | cover of the wire harness which concerns on a 2nd aspect is the adhesive tape wound around metal foil. In this case, the secondary coating is formed by wrapping a bundle of core wires and drain wires with a metal foil and winding an adhesive tape around the outer periphery of the metal foil. As will be described later, such a process can be easily automated.

  Moreover, in the wire harness according to the third aspect, the main wire portions of the core electric wire and the drain wire are previously bound by a plurality of binding materials before the metal foil and the secondary coating are wound around the outer periphery thereof. Thereby, when the metal foil and the secondary coating are wound, the core electric wire and the drain wire are not separated, and the metal foil and the secondary coating are easily wound.

  Moreover, the wire harness which concerns on a 4th aspect WHEREIN: The core electric wire has a branched structure similarly to the drain wire. Such a structure is suitable when the connection destination of a part (second part) of the core electric wire exists at an intermediate position of the shield region.

1 is a perspective view of a wire harness 10 according to a first embodiment of the present invention. 2 is a plan view of the wire harness 10. FIG. 2 is an exploded plan view of the wire harness 10. FIG. 2 is a schematic view of a manufacturing process of the wire harness 10. FIG. It is a perspective view of wire harness 10A concerning a 2nd embodiment of the present invention. It is a top view of wire harness 10B concerning a 3rd embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention. The wire harness according to each embodiment shown below has an electromagnetic shielding function for shielding noise electromagnetic waves around the electric wire, and is mainly mounted on a vehicle such as an automobile.

<First Embodiment>
First, the configuration of the wire harness 10 according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the wire harness 10 includes at least one core electric wire 1, a drain wire 2 having a branching portion 211 at least at one place, a metal foil 4, and a secondary coating 5.

<Core wire>
The core electric wire 1 is an electric wire that is connected to an electrical equipment and transmits electric power or a signal. The core wire 1 is an insulated wire (covered wire) having a linear conductor 11 and an insulation coating 12 covering the periphery of the conductor 11. Normally, the conductor 11 is a stranded wire in which a plurality of thin strands are twisted together, but it is also conceivable that the conductor 11 is a single wire.

  In this embodiment, the core electric wire 1 is an electric wire with a terminal in which a crimp terminal 13 is provided at an end thereof. The end portion of the core electric wire 1 to which the crimp terminal 13 is attached is in a state in which the insulating coating 12 is peeled off from the periphery of the conductor 11 of a certain length, that is, the conductor 11 of a certain length is covered with the insulating coating 12. Processed to extend from the end.

  The crimp terminal 13 of the core wire 1 is loaded into a cavity of a connector (not shown). The core electric wire 1 is connected to an electrical equipment through the connector. The wire harness 10 includes at least one core wire 1. In the example shown in FIGS. 1 to 3, the wire harness 10 includes two core electric wires 1.

<Drain line 2>
The drain wire 2 is a conducting wire that contacts the metal foil 4. In the present embodiment, the entire drain line 2 is a linear conductor with no coating, that is, a bare conductor. Normally, the drain wire 2 is a stranded wire in which a plurality of thin strands are twisted together, but the drain wire 2 may be a single wire.

  The drain line 2 has a main line portion 21 and a branch line portion 22 each made of a conductive wire. The main line portion 21 is a conductive wire along the core electric wire 1, and the branch line portion 22 is a conductive wire branched from the main line portion 21 at an intermediate position between both ends of the main line portion 21. Therefore, the drain wire 2 has a branch portion 211 at at least one intermediate position in the main wire portion 21 along the core electric wire 1. In the example shown in FIGS. 1-3, the branch part 211 is one place.

  Further, in the example shown in FIG. 3, the drain line 2 includes two conducting wires. One of the two conductive wires constitutes a portion from one end of the main line portion 21 to the branching portion 211 and the branch line portion 22. The other of the two conductive wires constitutes a portion from the other end of the main line portion 21 to the branching portion 211 and the branch line portion 22. In this case, the branch line portion 22 is a bundle of two conducting wires.

  In other words, in the example shown in FIG. 3, the main line portion 21 of the drain line 2 is a part of each of the two conducting wires arranged in series. Further, the branch line portion 22 of the drain wire 2 is a bundle of the remaining portions of the two conductive wires.

  In addition, a ground terminal 23 is connected to an end portion of the branch line portion 22 opposite to the branch portion 211. The ground terminal 23 is a metal terminal connected to a reference potential point (not shown). In a vehicle, the reference potential point is, for example, a metal frame of a vehicle body.

  It is also conceivable that the drain wire 2 is a single lead wire folded at the end of the branch line portion 22. In this case, the branch line portion 22 is a bundle of conductive wires arranged in two rows by being folded. The ground terminal 23 is connected to the folded portion of the conducting wire.

  It is also conceivable that the drain wire 2 has one conducting wire forming the main wire portion 21 along the core electric wire 1 and another conducting wire forming the branch wire portion 22. In this case, one end portion of the conducting wire forming the branch line portion 22 is joined to an intermediate position of the conducting wire forming the main line portion 21. The two conducting wires are joined by, for example, crimping a caulking fitting that is a tubular metal member. Or it is also considered that two conducting wires are joined by welding.

<Metal foil>
The metal foil 4 is a foil-shaped member made of a metal such as aluminum or copper. The metal foil 4 is wound around a bundle of the main wire portion 21 of the drain wire 2 and the core electric wire 1 and covers the periphery of the bundle. More specifically, the metal foil 4 is wound in a state of covering the main line portion 21 of the drain wire 2 and an intermediate region between both end portions of the core electric wire 1.

  Furthermore, the metal foil 4 is wound in a state in contact with the main line portion 21 of the drain wire 2. Moreover, the metal foil 4 is wound such that the first edge 41 and the second edge 42 on the opposite side of the four edges are along the extending direction of the main line 21 of the drain wire 2. . The extending direction of the main line portion 21 of the drain wire 2 is also the extending direction (axial direction) of the core electric wire 1.

  In other words, in the state where the first edge portion 41 and the second edge portion 42 forming the long side in the rectangular metal foil 4 are along the extending direction of the main wire portion 21, the metal foil 4 is connected to the main wire portion 21 and the core electric wire 1. It is wound on a bundle. Therefore, the metal foil 4 is not wound spirally. The metal foil 4 is preferably wound in a tubular shape with the first edge 41 overlapping the inside of the other part and the second edge 42 overlapping the outside of the other part.

  In FIG. 1, the end of the drain line 2 is exposed from the metal foil 4 for convenience. However, it is also conceivable that the metal foil 4 covers the drain wire 2 over its entire length.

<Secondary coating>
The secondary coating 5 is a member that covers the metal foil 4 wound around the bundle of the main wire portion 21 of the core electric wire 1 and the drain wire 2. The secondary coating 5 is made of a nonconductive material tape wound around the metal foil 4. In the wire harness 10, the insulating coating 12 of the core electric wire 1 is a primary coating formed inside the secondary coating 5. For example, the secondary coating 5 is a flexible member made of a synthetic resin such as polyvinyl chloride (PVC) or polyethylene (PE).

  The secondary coating 5 in the present embodiment is an adhesive tape 50 wound around the metal foil 4. The adhesive tape 50 has a flexible tape-like base material and an adhesive layer formed on the surface of the base material. Moreover, the part which covers areas other than the branch part 211 of the main line part 21 in the secondary coating 5 is the adhesive tape 50 wound spirally around the bundle of the main line part 21 of the core electric wire 1 and the drain wire 2.

  It is also conceivable that the secondary coating 5 is a member obtained by curing a synthetic resin tape. For example, it is conceivable that the secondary coating 5 is a member that is cured after a tape of a synthetic resin such as an ultraviolet curable resin, a thermosetting resin, or a moisture curable resin is wound around the metal foil 4. In this case, the secondary coating 5 is also a protector that protects the electric wire and holds the electric wire in a predetermined shape.

  In the example shown in FIG. 3, the wire harness 10 further includes a plurality of binding materials 3 that bind a plurality of locations in the main line portion 21 of the drain wire 2 to the core electric wire 1. In this case, the metal foil 4 is wound around the bundle of the main wire portion 21 of the core wire 1 and the drain wire 2 from the outside of the plurality of binding materials 3. The binding material 3 is, for example, an adhesive tape.

  The binding material 3 is provided at, for example, both end portions of the main line portion 21 of the drain wire 2 and both side portions of the branch portion 211. Note that the binding material 3 may be a binding belt.

<Method for manufacturing wire harness>
Next, an example of a method for manufacturing the wire harness 10 will be described with reference to FIG. FIG. 4 is a schematic view of the manufacturing process of the wire harness 10.

  The wire harness 10 can be easily manufactured by a generally automated process. First, a core electric wire 1 that has been subjected to terminal processing in advance and a drain wire 2 that has been subjected to terminal processing in advance are prepared.

  The process of performing terminal processing such as removal of the insulation coating 12 and crimping of the crimp terminal 13 on each core wire 1 can be easily automated by a conventional wire processing apparatus. Similarly, the process of attaching the ground terminal 23 to the drain wire 2 can be easily automated by a conventional wire processing apparatus.

  Next, the process of winding the tape-like secondary coating 5 around the outer periphery of the metal foil 4 while wrapping the bundle of the main wire portion 21 of the core wire 1 and the drain wire 2 with the metal foil 4 is performed. In this step, for example, an automatic tape winding device 9 and a guide jig 8 are used. In the following description, a bundle of the core electric wire 1 and the main wire portion 21 of the drain wire 2 is referred to as an electric wire bundle.

  The automatic tape winding device 9 includes a pair of transport rollers 91 and a tape winding mechanism 92. The pair of transport rollers 91 transport the wire bundle along the extending direction by sandwiching and rotating the wire bundle. The tape winding mechanism 92 rotates the feeding portion of the adhesive tape 50 around the wire bundle being conveyed while feeding the adhesive tape 50.

  The guide jig 8 is disposed upstream of the automatic tape winding device 9 in the direction in which the electric wire bundle is conveyed. Further, one end of the metal foil 4 is fixed to the wire bundle in advance. Then, the guide jig 8 deforms the metal foil 4 that moves together with the electric wire bundle in order from the end side fixed to the electric wire bundle to an annular shape that wraps around the electric wire bundle being conveyed.

  Then, the tape winding mechanism 92 winds the adhesive tape 50 around the outer periphery of the metal foil 4 deformed so as to wrap the electric wire bundle. As a result, the adhesive tape 50 is spirally wound around the metal foil 4 deformed into a tubular shape surrounding the wire bundle, and the secondary coating 5 is formed.

  As described above, the step of wrapping the wire bundle with the metal foil 4 and winding the tape-like secondary coating 5 around the outer periphery of the metal foil 4 is performed at least in the region from both ends of the wire bundle to the branching portion 211. Can be easily automated.

  Moreover, the process of winding the adhesive tape 50 around the metal foil 4 while wrapping the portion of the branch portion 211 in the wire bundle with the metal foil 4 is performed by a manual operation.

<Effect>
The wire harness 10 includes a metal foil 4 covering the periphery of the core electric wire 1 and a drain wire 2 for connecting the metal foil 4 to a reference potential point. Therefore, the wire harness 10 has an electromagnetic shielding function. Furthermore, the wire harness 10 can be easily manufactured by a generally automated process including the process shown in FIG. Therefore, if the wire harness 10 is employed, an electromagnetic shielding function can be easily realized.

  In the wire harness 10, the branch line portion 22 of the drain wire 2 branches off from the main line portion 21 of the drain wire 2 covered with the metal foil 4. That is, the branch line portion 22 of the drain line 2 branches from the main line portion 21 of the drain line 2 at an intermediate position of the shield region.

  Therefore, when the reference potential point exists at an intermediate position of the shield region, a configuration in which the branch line portion 22 of the drain line 2 branches from the main line portion 21 at a position close to the reference potential point can be adopted. In this case, the branch line portion 22 of the drain line 2 can be directly connected to the reference potential point.

  That is, when the reference potential point exists at an intermediate position of the shield region, the ground wire that relays the end of the drain wire 2 (the end of the main line portion 21) along the core wire 1 and the reference potential point can be omitted. As a result, an increase in the weight, thickness and cost of the wire harness can be avoided.

  The secondary coating 5 of the wire harness 10 is an adhesive tape 50 that is wound around the metal foil 4 in a spiral shape. In this case, the secondary coating 5 is formed by wrapping the bundle of the core electric wire 1 and the drain wire 2 with the metal foil 4 and winding the adhesive tape 50 around the outer periphery of the metal foil 4 in a spiral shape. As shown in FIG. 3, most of such processes can be easily automated.

  Further, in the example shown in FIG. 3, the main wire portion 21 of the core electric wire 1 and the drain wire 2 are previously bundled by a plurality of bundling materials 3 before the metal foil 4 and the secondary coating 5 are wound around the outer periphery thereof. The Thereby, when the metal foil 4 and the secondary coating 5 are wound, the core electric wire 1 and the drain wire 2 are not separated, and the metal foil 4 and the secondary coating 5 are easily wound.

Second Embodiment
Next, a wire harness 10A according to a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a perspective view of the wire harness 10A.

  10 A of wire harnesses differ only in the structure of the secondary coating | cover covering the metal foil 4, compared with the wire harness 10 shown by FIGS. In FIG. 5, the same components as those shown in FIGS. 1 to 3 are given the same reference numerals. Hereinafter, only the differences of the wire harness 10A from the wire harness 10 will be described.

  The secondary coating 5 </ b> A of the wire harness 10 </ b> A is also made of a non-conductive material tape wound around the metal foil 4. However, the secondary coating 5 </ b> A is a tape-like laminate film wound around the metal foil 4.

  More specifically, the laminate film constituting the secondary coating 5 </ b> A is wound around the bundle of the main wire portion 21 of the drain wire 2 and the core wire 1 to cover the periphery of the bundle. Furthermore, the laminate film constituting the secondary coating 5A is wound in a state where the first edge 51 of the four edges and the second edge 52 on the opposite side thereof are along the extending direction of the drain wire 2. Yes. Furthermore, the first edge 51 and the second edge 52 of the laminate film (secondary coating 5A) are bonded by an adhesive layer formed on the surface of the film.

  In the manufacturing process of the wire harness 10A, the tape-shaped metal foil 4 and the tape-shaped laminate film are deformed into a cylindrical shape covering the electric wire bundle by a jig similar to the guide jig 8 shown in FIG.

  Further, the first edge 51 and the second edge 52 of the laminated film deformed into a cylindrical shape are heated while being pressed against each other by a pair of heating rollers or the like. The deformation and heating steps shown above are performed in a region from each side of each end of the wire bundle to the position of the branch portion 211. Thereby, the 1st edge part 51 and the 2nd edge part 52 of a laminate film are adhere | attached, and a laminate film is shape | molded by the secondary coating | cover 5A which covers the intermediate | middle area | region of an electric wire bundle.

  Therefore, when the wire harness 10A is employed, the same effect as that obtained when the wire harness 10 is employed is obtained.

<Third Embodiment>
Next, a wire harness 10B according to a third embodiment of the present invention will be described with reference to FIG. FIG. 6 is a plan view of the wire harness 10B.

  The wire harness 10B is different from the wire harness 10 shown in FIGS. 1 to 3 only in that the core electric wire 1 is branched at an intermediate position. In FIG. 6, the same components as those shown in FIGS. Hereinafter, only the differences from the wire harness 10 in the wire harness 10B will be described.

  In the wire harness 10B, the core electric wire 1 has a first portion 14 along the main line portion 21 of the drain wire 2 and a second portion 15 branched from the first portion 21 at an intermediate position between both end portions of the first portion 21. doing. That is, in the core electric wire 1, the 1st part 14 is a main line part and the 2nd part 15 is a branch line part. The main line portion 21 of the drain wire 2 is disposed along the first portion 21 of the core electric wire 1.

  In the example shown in FIG. 6, the second portion 15 of the core wire 1 is branched at the same position as the branch position of the branch line portion 22 in the drain wire 2. It is also conceivable that the second portion 15 of the core electric wire 1 is branched at a position different from the branch position of the branch line portion 22 in the drain wire 2.

  In the wire harness 10 </ b> B, the metal foil 4 is wound around a bundle of the main line portion 21 of the drain wire 2 and the first portion 14 of the core electric wire 1.

  In the wire harness 10 </ b> B, the core electric wire 1 has a branched structure like the drain wire 2. Such a structure is suitable when the connection destination of the second portion 15 of the core electric wire 2 exists at an intermediate position in the shield region.

<Others>
It is also conceivable that the wire harness 10, 10 </ b> A, 10 </ b> B includes an insulating coating that covers the periphery of the branch line portion 22 of the drain wire 2. For example, it is conceivable that a heat-shrinkable tube is employed as the insulating coating for the branch line portion 22. Moreover, when the branch line part 22 is joined to the main line part 21, it is also considered that an insulated wire is employ | adopted as insulation coating which covers the branch line part 22 and its circumference | surroundings.

  In the wire harness according to the present invention, the embodiments described above can be freely combined within the scope of the invention described in each claim, or each embodiment can be appropriately modified or partially omitted. It is also possible to constitute by doing.

DESCRIPTION OF SYMBOLS 1 Core electric wire 2 Drain wire 3 Bundling material 4 Metal foil 5,5A Secondary coating 8 Guide jig 9 Automatic tape winding device 10, 10A, 10B Wire harness 11 Core electric wire conductor 12 Core electric wire insulation 13 Crimp terminal 14 Core First portion of electric wire 15 Second portion of core electric wire 21 Main portion of drain wire 22 Branch portion of drain wire 23 Ground terminal 41 First edge portion of metal foil 42 Second edge portion of metal foil 50 Adhesive tape 51 No. of laminate film One edge 52 Second edge of laminate film 91 Conveying roller 92 Tape winding mechanism 211 Drain part of drain wire

Claims (4)

A core wire made of insulated wires;
A drain line having a main line portion made of a conductive wire along the core electric wire and a branch line portion made of a conductive wire branched from the main line portion at an intermediate position between both ends of the main wire portion;
The main line portion of the drain line in a state in contact with the main line portion of the drain line, and a state in which the first edge portion and the second edge portion on the opposite side are along the extending direction of the main line portion of the drain line. And a metal foil wound around the bundle of core wires and covering the periphery of the bundle,
A wire harness comprising: a non-conductive material tape wound around the metal foil, and a secondary coating covering the metal foil. The wire harness according to claim 1,
The said secondary coating | cover is a wire harness which is the adhesive tape wound around the said metal foil. The wire harness according to claim 1 or 2, wherein
A plurality of binding materials for binding a plurality of locations in the main line portion of the drain wire with the core electric wire;
The metal foil is a wire harness wound from the outside of a plurality of the binding materials. The wire harness according to any one of claims 1 to 3,
The core electric wire has a first part along the main line part of the drain wire and a second part branched from the first part at an intermediate position between both ends of the first part,
The metal foil is a wire harness wound around a bundle of the main portion of the drain wire and the first portion of the core electric wire.

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