JP2018137155A - Wire harness with braid cover and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness with a braid cover of a novel design, which can be arranged in a prescribed braid section with good work efficiency, while being capable of advantageously protecting the wire harness even when a diameter size or an extension shape of the wire harness changes, and a manufacturing method thereof.SOLUTION: A wire harness with a braid cover 10 has a braid cover 14 configured to sheathe a wire harness 12. The braid cover 14 includes an adhesion part 28 configured to adhere on the wire harness 12 and an enlarged width part 32 connected to an end part 30 of the adhesion part 28 and having a larger diameter size than the adhesion part 28.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire harness with a braided cover in which a braided cover for protecting a wire harness is extrapolated and a method for manufacturing the same.

  Conventionally, the protection of a wire harness composed of a wiring material in which electric wires or the like are bundled is, for example, as described in FIG. 3 of Japanese Utility Model Publication No. 63-49356 (Patent Document 1). This is done by winding a belt around the wire harness to provide strength as a binding.

  By the way, it takes a lot of time to wind a vinyl tape or a fire-resistant cotton band around the wire harness, and a fire-resistant cotton band requires a protective mask because harmful fine powder is scattered. It was not preferable. Therefore, using a braided cover formed by knitting plastic wire or metal wire into a stretchable cylindrical net, the wire is pressed in the axial direction and enlarged in diameter as shown in FIG. After passing through the harness, as shown in FIG. 2 of Patent Document 1, the braided cover is covered with the wire harness while being stretched in the axial direction, thereby bringing the braided cover into close contact with the wire harness for binding and protection. It was supposed to be.

  However, since the braided cover having such a configuration is adapted to be closely attached to the periphery of the wire harness while being stretched in the axial direction, the end edge of the braided cover can be positioned at the end point of a predetermined braided section. It was difficult, and there was a problem that work efficiency deteriorated due to re-installation. Furthermore, although the diameter dimension changes according to the stretching in the axial direction, the same diameter dimension is provided over the entire length of the braided cover, so that the outer diameter dimension of the braided cover is also constant in the wire harness. It was limited to the part that was said.

  In addition, bundling and protection are performed by bringing a braided cover having the same diameter over the entire length into close contact with the wire harness. Therefore, when a spliced portion or the like is disposed and a wire harness having a bent portion is partially enlarged or the bent harness is to be protected by the braided cover, the braided cover is in close contact with the spliced portion or the bent portion. As a result, there is a possibility that the wire forming the splice part or the bent part may protrude to the outside, and further improvement of the braided cover has been desired.

Japanese Utility Model Publication No. 63-49356

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the wire harness can be efficiently disposed in a predetermined braided section, and the diameter and extension shape of the wire harness can be changed. Therefore, it is an object of the present invention to provide a wire harness with a braided cover having a novel structure that can advantageously protect the wire harness and a method for manufacturing the same.

  A first aspect of the present invention relating to a wire harness with a braided cover is the wire harness with a braided cover having a braided cover that is extrapolated to the wire harness, wherein the braided cover is in close contact with the wire harness; And a widened portion connected to the end of the portion and having a larger diameter than the closely contacted portion.

  According to this aspect, the braided cover includes the close contact portion that is in close contact with the wire harness, and the widened portion that is connected to at least one end of the close contact portion and has a larger diameter than the close contact portion. That is, since the widened portion is not in close contact with the wire harness, the widened portion can be easily compressed and stretched in the axial direction even when it is extrapolated to the wire harness. Therefore, the braided cover can be easily positioned and arranged with respect to the part of the wire harness that needs to be protected by pushing or shrinking or extending the widened portion in the axial direction. The braided cover can be arranged efficiently.

  Further, since the widened portion is not in close contact with the wire harness, the widened portion of the braided cover can be extrapolated without spreading the mesh with respect to the splice portion or the bent portion of the wire harness. Therefore, like a braided cover having the same diameter over the entire length, the braided cover mesh spreads in close contact with the splice part and the bent part, and there is a risk that the electric wire constituting the internal wire harness protrudes to the outside. Can be advantageously avoided.

  According to a second aspect of the present invention relating to a wire harness with a braided cover, in the wire harness with a braided cover according to the first aspect, the widened portion can be disposed to be extendable in the axial direction.

  According to this aspect, the widened portion is configured to be extendable and retractable in the axial direction. Therefore, the braided cover can be positioned and disposed more easily with respect to the braided section of the wire harness that needs to be protected.

  According to a third aspect of the present invention relating to a wire harness with a braided cover, in the wire harness with a braided cover according to the first or second aspect, the widened portion is pressed and shrunk in the axial direction to form a dumpling. Is.

  According to this aspect, the widened portion is compressed in the axial direction to form a dumpling. Thus, for example, by arranging the widened portion of the braided cover that is in the form of a dumpling against a portion where the wiring harness may come into contact with other members due to vibration or the like during driving of the vehicle, the dumpling on which the wire harness is applied Since it can be brought into contact with other members via the shaped portion, the effects of vibration absorption and noise absorption can be expected.

  According to a fourth aspect of the present invention relating to a wire harness with a braided cover, in the wire harness with a braided cover according to any one of the first to third aspects, a diameter dimension of the widened portion is pivoted from the contact portion. It gradually increases as the distance increases.

  According to this aspect, the diameter of the widened portion is gradually increased as it is separated from the contact portion in the axial direction. Thereby, when the widened portion is compressed in the axial direction, a larger lump can be formed, and the function as a buffer member can be more advantageously exhibited. In addition, when the widened portion is extended in the axial direction, the diameter of the end of the braided cover can be increased more advantageously, and even when the wire harness is provided with a portion with a large change in diameter. The wire harness can be protected by one braided cover, and the number of parts and the number of work steps can be reduced.

  A fifth aspect of the present invention relating to a wire harness with a braided cover is the wire harness with a braided cover according to the fourth aspect, wherein the braided end end of the widened portion is connected to the braided end end of the widened portion. And a constricted portion having a diameter smaller than that of the contact portion.

  According to this aspect, the narrowed portion is connected to the braid end end of the widened portion and has a diameter smaller than that of the braid end end of the widened portion and larger than the close contact portion. Since it has a larger diameter than the close contact portion, the widened portion can be easily extended in the axial direction, and since it has a smaller diameter than the braid end of the widened portion, the braid end end side of the widened portion The constricted portion can be securely fixed to the wire harness with a binding tape or the like.

  A first aspect of the present invention relating to a method of manufacturing a wire harness with a braided cover is a method of manufacturing a wire harness with a braided cover in which a braided cover formed by braiding braided yarn is attached to the outer peripheral surface of the wire harness. A wire harness installation step of inserting the wire harness from below the braiding machine, and braiding the braided yarn while pulling the wire harness upward from the braiding machine, so that the braiding machine lowers the braiding machine from the braiding start end. A close-contact portion forming step for forming a close-contact portion braided and braiding the braided yarn in a state in which lifting of the wire harness to the upper side of the braiding machine is stopped after completion of the close-contact portion forming step. And a widened portion forming step of forming a widened portion braided so as to overlap in the radial direction at the end portion of the close contact portion.

  According to this aspect, when the pulling up of the wire harness is stopped after the contact portion forming step, the yarn is wound so as to overlap the end portion of the contact portion of the outer peripheral surface of the wire harness. The diameter dimension of the braid wound around is larger than the diameter dimension of the braid in the close contact portion. In this way, the widened portion having a larger diameter than the close contact portion can be formed very easily at the end of the close contact portion.

  The widened portion has a larger diameter than the close contact portion and is not in close contact with the wire harness. Therefore, the widened portion can be easily compressed and stretched in the axial direction, and the braided cover can be applied to a portion of the wire harness that needs to be protected. It can be positioned and arranged. Further, since the widened portion is not in close contact with the wire harness, it is possible to advantageously avoid the possibility that the wire of the braided cover that is in close contact with the bent portion expands and the wires constituting the wire harness protrude outside. Yes.

  Furthermore, it is possible to easily superimpose the widened portion on the outer peripheral surface of the wire harness so as to form a dumpling simply by extending the time required for the widened portion forming step. By forming the part in a place where the wire harness comes into contact with another member, it is possible to expect the effects of vibration absorption and noise absorption.

  According to the present invention, the braided cover includes a close contact portion that is in close contact with the wire harness, and a widened portion that is connected to at least one end of the close contact portion and has a larger diameter than the close contact portion. Therefore, the braided cover can be easily positioned and disposed with respect to the portion of the wire harness that needs to be protected by pressing the widened portion in the axial direction or by stretching it. In addition, since the widened portion is not in close contact with the wire harness, the mesh of the braided cover spreads in close contact with the splice portion and the bent portion like the braided cover of the same diameter over the entire length of the conventional wire harness. A possibility that the electric wire etc. which comprise a harness will protrude outside can be avoided advantageously.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the wire harness with a braid cover as 1st embodiment of this invention (After completion of (a) braiding, (b) after positioning arrangement | positioning of the braid cover in a predetermined part). The II-II cross-section principal part enlarged view in FIG. The front view which shows the braiding machine used in order to manufacture the wire harness with a braid cover of this embodiment. It is a front view for demonstrating the manufacturing method of the wire harness with a braided cover of this embodiment, Comprising: The figure ((a) Before a wire harness installation process, (b) After a wire harness installation process, (c ) After the adhesion portion forming step, (d) after the widened portion forming step, and (e) after the terminal treatment). It is sectional drawing which shows another aspect of the wire harness with a braid cover of this embodiment, Comprising: The figure corresponded in FIG. 2 ((a) After braiding completion, (b) After positioning arrangement | positioning of the braid cover in a bending part). It is a front view which shows the other aspect of the wire harness with a braided cover of this embodiment, Comprising: The figure corresponded to Fig.1 (a). It is a front view which shows the wire harness with a braided cover as 2nd embodiment of this invention, Comprising: The figure corresponded in FIG. It is a front view which shows the wire harness with a braided cover as 3rd embodiment of this invention, Comprising: The figure corresponded in FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 show a wire harness 10 with a braided cover as a first embodiment of the present invention. The wire harness 10 with a braided cover has a braided cover 14 that is externally inserted into the wire harness 12, and is protected by covering the outer peripheral surface 16 of the wire harness 12 with the braided cover 14. In the following description, “upper” refers to the upper side in FIGS. 1 and 2, “lower” refers to the lower side in FIGS. 1 and 2, and “axial direction” refers to the vertical direction and radial direction in FIGS. Means the horizontal direction in FIGS. In order to facilitate understanding, the binding tape 18 is shown in phantom lines in FIG. 1 (FIGS. 4E and 6-7), and the wire harness 12 (54) in FIG. 2 (FIG. 5). ing.

  The wire harness 12 is configured by bundling a plurality of electric wires 20 (eight in this embodiment) as wiring members, and connectors 22a and 22b are provided at terminals on both sides thereof. Each of the connector housings 24a and 24b constituting the connectors 22a and 22b has a substantially block shape, and is integrally formed by injection molding or the like with a synthetic resin such as polypropylene (PP) or polyamide (PA). A plurality of cavities (not shown) are formed through the connector housings 24 a and 24 b in the axial direction of the wire harness 12, and a plurality of connector terminals (not shown) provided at the terminals on both sides of the plurality of electric wires 20 are provided. And are arranged at predetermined positions in the plurality of cavities. Then, when the connectors 22a and 22b are fitted with a mating connector (not shown), the wire harness 12 is electrically connected to a wire harness (not shown) extending from the mating connector. Yes.

As shown in FIGS. 1 and 2, the outer peripheral surface 16 of the bundle of the plurality of electric wires 20 constituting the wire harness 12 formed in this way is covered and protected by the braid cover 14 so that the braid cover is attached. A wire harness 10 is formed. More specifically, the braided cover 14 has a cylindrical shape formed by knitting a mesh so that a braided yarn 26 made of a plurality of chemical fiber yarns, metal yarns, and the like is in close contact with the outer peripheral surface 16 of the wire harness 12. The contact portion 28 is provided, and can be slightly expanded and contracted in the radial direction and the axial direction due to the flexibility of the chemical fiber yarn or the metal yarn. As such chemical fiber yarn, for example, a polyamide fiber having a certain degree of wear resistance, oil resistance and flexibility is used, while the metal yarn may be a metal material having conductivity, but preferably lightweight. Aluminum or its alloy is used. In addition, braided cover 14 is connected to the lower end 30 of the contact portion 28 and the diameter of the contact portion 28: diameter larger than _{R 0: R n (n =} 1,2,3, ...) ( FIG. 2 And a widened portion 32 having a reference). The widened portion 32 is braided so that it is folded back and overlaps over the length dimension L (see FIG. 2) in the axial direction at the lower end portion 30 of the contact portion 28 to form a substantially annular shape. (See FIG. 1 (a) and FIG. 2 (a)).

  As shown in FIG. 1A, terminal processing portions 38a and 38b are formed on the upper end portion 34 of the close contact portion 28 of the braided cover 14 and the lower end portion 36 of the widened portion 32, respectively. The terminal processing portions 38a and 38b are configured such that a braided yarn 26 made of a plurality of chemical fiber yarns or metal yarns knitted in a mesh shape is the upper end of the close contact portion 28 on one end side in the axial direction of the braid cover 14. Terminal processing is performed by winding the binding tape 40 around the welded portion and covering the welded portion as necessary, while being integrated and welded at the lower end portion 36 of the wide portion 32 that is the portion 34 and the other end side in the axial direction. Yes. The terminal processing portions 38a and 38b are formed so as to protrude from the upper end portion 34 of the contact portion 28 and the lower end portion 36 of the widened portion 32 toward the connectors 22a and 22b, respectively, while the terminal processing portion 38a is The winding tape 18 is fixed to the outer peripheral surface 16 of the wire harness 12 together with the upper end portion 34 of the contact portion 28 by tape. Further, in the present embodiment, the upper end portion 34 of the close contact portion 28 of the braid cover 14 is a braid start end, while the lower end portion 36 of the widened portion 32 of the braid cover 14 is a braid end end.

Then, as shown in FIG. 1B, the terminal processing portion 38b of the wire harness 10 with a braided cover 10 having the configuration shown in FIG. 1A is picked and pulled downward. The widened portion 32 braided so as to be folded back and overlapped over the length dimension L in the axial direction at the lower end portion 30 can be easily pulled out, and the wire harness 12 can be pulled out by the drawn widened portion 32. It can be protected by covering the outer peripheral surface 16. As shown in FIG. 2, the diameter dimension R _n (n = 1, 2, 3,...) Of the drawn widened portion 32 is larger than the diameter dimension R ₀ of the contact portion 28. Therefore, the extended widened portion 32 is not brought into close contact with the outer peripheral surface 16 of the wire harness 12. In addition, since the widened portion 32 is braided so as to be folded and overlapped over the length dimension L in the axial direction (see FIG. 2A), the diameter of the widened portion 32 is configured. As shown in FIG. 2B, the dimension: R _n (n = 1, 2, 3,...) Is directed downward in the axial direction from the lower end 30 of the contact portion 28 (diameter dimension: R ₀ ). It is configured to gradually increase (R _{n + 1} > R _n ) as the distance increases. Therefore, the widened portion 32 can be easily extended or compressed in the axial direction even when the widened portion 32 is extrapolated to the bundle of the electric wires 20 of the wire harness 12, that is, the widened portion 32 is the outer peripheral surface of the wire harness 12 in the axial direction. 16 can be arranged to be telescopic. For easy understanding, the lower end portion 36 of the widened portion 32 is not in close contact with the outer peripheral surface 16 of the wire harness 12 in FIG. After being disposed on the outer peripheral surface 16, for example, the lower end portion 36 of the widened portion 32 and the terminal processing portion 38 b are taped and fixed so as to be in close contact with the outer peripheral surface 16 of the wire harness 12 by the binding tape 18. It has become.

  Next, an embodiment of the present invention relating to a method of manufacturing a wire harness with a braided cover that can be suitably used for manufacturing such a wire harness with a braided cover 10 will be described with reference to FIGS. 3 and 4. explain.

  First, the wire harness 12 shown in FIG. 4A is prepared. Subsequently, as shown in FIG. 3, a wire harness installation process is performed in which the wire harness 12 is inserted from below the braiding machine 44. More specifically, the braiding machine 44 includes a disk-shaped base plate 48 having a wire harness insertion hole 46 having a substantially circular cross-sectional shape penetrating in the center portion in the plate thickness direction (vertical direction in FIG. 3), and the base plate 48. A braided yarn 26 made of a chemical fiber yarn, a metal yarn or the like is supplied to a composition point of the braid from a plurality of bobbins 50 provided on the outer periphery of the bundle of electric wires 20 constituting the wire harness 12. A braided braid cover 14 is braided by a plurality of braided yarns 26 being interlaced and swirled in FIG. As such a braiding machine 44, for example, a known device can be used as a braiding device for braiding around a core body such as a mandrel. Then, as shown in FIGS. 3 and 4 (b), the braided yarn 26 is taken out from the plurality of bobbins 50 and welded, and a binding tape 40 is wound around the tip portion as necessary, thereby the terminal processing section. 38a is formed. Subsequently, the wire harness 12 is configured by inserting the wire harness 12 from below the braiding machine 44 through the wire harness insertion hole 46 and through the gaps of the braiding yarns 26 extending from the plurality of bobbins 50 connected to the terminal processing unit 38a. The connector housing 24a is protruded upward. And the wire harness installation process is completed by positioning and arranging the terminal processing unit 38a at a predetermined position on the outer peripheral surface 16 of the bundle of electric wires 20 constituting the wire harness 12.

  Next, the upper end portion of the wire harness 12 positioned in the braiding machine 44 is held in this way, and the braiding machine 44 is operated to perform the braiding, and the wire harness 12 is pulled up above the braiding machine 44. Thus, it is possible to braid from the upper end portion 34 of the contact portion 28, which is the braiding start end, toward the lower side of the braiding machine 44. In this way, as shown in FIG. 4C, the close contact portion that forms the close contact portion 28 braided from the upper end portion 34 of the close contact portion 28, which is the braiding start end, downward of the braiding machine 44. The forming process is performed.

  Subsequently, after completion of the contact portion forming step, in the state where the braiding work is continued, the wire harness 12 is stopped from being pulled upward toward the upper side of the braiding machine 44, whereby the lower end portion 30 of the contact portion 28 is axially moved. The length dimension: L (see FIGS. 2 (a) and 4 (d)) can be braided so as to be folded back and overlap in the radial direction. In this way, the widened portion forming step for forming the widened portion 32 braided so as to overlap the radial direction at the lower end portion 30 of the close contact portion 28 is executed.

  Finally, as shown in FIG. 4 (e), after the widened portion forming step, the braided yarn 26 is gathered and welded at the lower end portion 36 of the widened portion 32 of the braided cover 14, and necessary. Accordingly, the terminal processing is performed by winding the binding tape 40 around the welded portion and covering the welded portion, so that the terminal processing portion 38b is formed. As a result, the wire harness 10 with a braided cover in which the braided cover 14 formed by braiding the braided yarn 26 on the outer peripheral surface 16 of the wire harness 12 is attached can be obtained.

According to the wire harness 10 with a braided cover obtained by such a manufacturing method, the braided cover 14 includes a close contact portion 28 braided so that the braided yarn 26 is in close contact with the outer peripheral surface 16 of the wire harness 12, and a close contact portion. is connected to 28 the lower end portion 30 of and the diameter of the contact portion 28: diameter larger than _{R 0: R n (n =} 1,2,3, ...) and widened portion 32 having, is configured to include a Yes. In addition, the widened portion 32 is configured to be braided so as to be folded back and overlap over the length dimension L in the axial direction at the lower end portion 30 of the contact portion 28. Therefore, when the widened portion 32 is to be pulled out by picking the terminal processing portion 38 b formed at the lower end portion 36 of the widened portion 32 and pulling it downward, the widened portion 32 is connected to the outer peripheral surface 16 of the wire harness 12. It can be easily pulled out without being in close contact with and can be easily compressed. Therefore, the braided cover 14 can be easily positioned and arranged with respect to a predetermined portion of the wire harness 12 that needs to be protected.

Further, the widened portion 32 is configured to be folded over and overlapped over the length dimension L in the axial direction, and the radial size of the widened portion 32: R _n (n = 1, 2, 3). ,... Are configured to gradually increase (R _{n + 1} > R _n ) as the distance from the lower end 30 of the contact portion 28 (diameter dimension: R ₀ ) decreases in the axial direction. Therefore, the widened portion 32 can be easily pulled out without being in close contact with the outer peripheral surface 16 of the wire harness 12, and the widened portion 32 in a compressed state can be configured compactly at the lower end portion 30 of the tightly contacting portion 28. It is possible. Moreover, since the single braided cover 14 can cover and protect the large-diameter dimensional change portion even with respect to the large-diameter dimensional change portion of the outer peripheral surface 16 of the wire harness 12, the number of parts can be reduced. The number of work steps can be reduced.

In addition, according to the manufacturing method of the present embodiment, the axial length dimension: L is stopped by stopping the wire harness 12 from being pulled upward of the braiding machine 44 after the close contact portion forming step is completed. Thus, it can be easily folded and folded so as to overlap in the radial direction. Moreover, in this way widened portion 32 of diameter which is formed by braiding to overlap radially folded by multiple layers: R _n is, diameter of the contact portion 28: As braid than R ₀ progresses since increasingly large, the adhesion portion 28 to the lower end portion 30 of the contact portion 28 (diameter: R ₀₎ diameter larger than: so it is possible to very easily form the widened portion 32 having a R _n Yes. As a result, the widened portion 32 has a larger diameter than the close contact portion 28 and is not in close contact with the outer peripheral surface 16 of the wire harness 12, so that the widened portion 32 can be easily extended or compressed in the axial direction. In addition, the braided cover 14 can be positioned and arranged with respect to the outer peripheral surface 16 of the wire harness 12 that needs to be protected with good workability.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by these specific description. For example, as shown in FIGS. 1 to 4, the wire harness 10 with a braided cover of the present embodiment is configured such that a bundle of electric wires 20 constituting the wire harness 12 extends linearly in the axial direction. However, like the wire harness 52 with a braided cover as another aspect of the present embodiment shown in FIG. 5, the bundle of the electric wires 20 constituting the wire harness 54 has a substantially L shape having a bent portion 56. May be. That is, since the widened portion 32 constituting the braided cover 14 is not in close contact with the outer peripheral surface 16 of the wire harness 54, the widened portion 32 is extrapolated to the bent portion 56 of the wire harness 54 without spreading the mesh. It can be done. Therefore, compared to the case where the braided cover as in the prior art is in close contact with the outer peripheral surface 16 of the electric wire 20 constituting the wire harness 12, the braided cover mesh is in close contact with the bent portion 56 and spreads. The possibility that the electric wire 20 or the like constituting the harness 12 protrudes to the outside can be advantageously avoided.

Moreover, in the wire harness 10 with a braided cover of said 1st embodiment, as FIG.1 (b) shows, the wide part 32 which comprises the braided cover 14 is used in the state pulled out by the axial direction. However, like the wire harness 60 with a braided cover as another aspect of the first embodiment of the present invention shown in FIG. 6, the widened portion 32 is pressed and shrunk in the axial direction to form a dumpling. Can also be used. That is, when there is another member 62 such as a protrusion formed on the vehicle body in the vicinity of the bundle of the electric wires 20 constituting the wire harness 12, the braided cover 14 is placed on the portion of the wire harness 12 adjacent to the other member 62. The braided cover 14 is formed on the outer periphery of the wire harness 12 by constituting the widened portion 32 and winding the binding tape 18 around the outer peripheral surface 16 of the wire harness 12 at the terminal processing portion 38b provided at the lower end portion 36 of the widened portion 32. It is fixed on the surface 16. Thereby, for example, even when the other member 62 comes into contact with the wire harness 12 due to vibration or the like during driving of the vehicle, the wire harness 12 is connected to the other member via the widened portion 32 of the braided cover 14 in the form of a dumpling. Since it can be brought into contact with 62, the effects of vibration absorption and noise absorption can be expected. In addition, the widened portion 32 of the braided cover 14 can easily remove the widened portion 32 from the outer peripheral surface 16 of the wire harness 12 only by stopping pulling the wire harness 12 upward of the braiding machine 44 in the widened portion forming step. It can be configured in a dumpling shape at a predetermined position above. Furthermore, like a wire harness 64 with a braided cover as a second embodiment of the present invention shown in FIG. 7, the lower end 36 of the widened portion 32 of the braided cover 14 shown in FIG. By using the braided cover 66 provided with the second contact portion 68, the outer peripheral surface 16 of the wire harness 12 that cannot be covered and protected by the braided cover 14 shown in FIG. Also good. In addition, like a wire harness 70 with a braided cover as the third embodiment of the present invention shown in FIG. Alternatively, a braided cover 72 provided with a narrowed portion 74 extending downward in the axial direction may be used. Since the narrowed portion 74 has a diameter larger than that of the close contact portion 28 (R _b > R _{0 in} FIG. 8), the widened portion 32 can be easily extended in the axial direction and the widened portion 32. Since the diameter of the lower end portion 36 is smaller than that of the lower end portion 36 (R _b <R _{a in} FIG. 8), the lower end portion 36 of the widened portion 32 is securely attached to the wire harness 12 by the binding tape 18 by the constricted portion 74. It can be fixed. In the present embodiment, the narrowed portion 74 has been described with a constant diameter dimension: _Rb . However, for example, the narrowed portion 74 may be formed to have a smaller diameter in the axially downward direction. As a result, the constricted portion 74 can more reliably fix the wire harness 12 with the binding tape 18.

  In the above embodiment, the widened portion 32 is formed only at the lower end portion 30 of the close contact portion 28, but the widened portion 32 may be formed at the upper end portion 34 of the close contact portion 28, or both end portions 30. , 34 may be formed with a widened portion 32. In the above embodiment, only one braided cover 14, 66 is formed on the outer peripheral surface 16 of the wire harness 12, but a plurality of braided covers 14, 66 may be formed. Furthermore, in the said embodiment, although the radial dimension of the wide part 32 was comprised so that it might become large gradually toward the axial direction downward from the lower end part 30 of the contact part 28, it is not limited to this. That is, the diameter of the widened portion 32 only needs to be larger than the diameter of the close contact portion 28.

10, 52, 60, 64, 70: Wire harness with braided cover, 12, 54: Wire harness, 14, 66, 72: Braided cover, 16: Outer peripheral surface, 26: Braided yarn, 28: Close contact portion, 30: Lower end Part, 32: widening part, 34: upper end part (braiding start end), 44: braiding machine, 74: narrowing part

Claims (6)

In a wire harness with a braided cover having a braided cover that is extrapolated to the wire harness,
The braided cover includes a close contact portion that is in close contact with the wire harness, and a widened portion that is connected to an end portion of the close contact portion and has a larger diameter than the close contact portion. Wire harness with cover.   The wire harness with a braided cover according to claim 1, wherein the widened portion can be disposed so as to expand and contract in the axial direction.   The wire harness with a braided cover according to claim 1 or 2, wherein the widened portion is compressed in the axial direction to form a dumpling.   The wire harness with a braided cover according to any one of claims 1 to 3, wherein a diameter of the widened portion is gradually increased as the diameter of the widened portion is increased in the axial direction.   The braided cover according to claim 4, further comprising a constricted portion connected to the braid end of the widened portion and having a diameter smaller than that of the braided end of the widened portion and larger than that of the contact portion. With wire harness. A method of manufacturing a wire harness with a braided cover in which a braided cover formed by braiding braided yarn is attached to the outer peripheral surface of the wire harness,
A wire harness installation process for inserting the wire harness from below the braiding machine;
A close-contact portion forming step of forming a close-contact portion braided from the braiding start end to the lower portion of the braiding machine by braiding the braided yarn while pulling up the wire harness above the braiding machine;
After the completion of the contact portion forming step, the braided yarn is braided so as to overlap in the radial direction at the end portion of the contact portion by stopping the pulling of the wire harness above the braiding machine. And a widened portion forming step of forming the widened portion. A method for manufacturing a wire harness with a braided cover.

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