JP2014147267A - Wire harness and method of manufacturing wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness in which a splice can be confirmed from the outside in a state where the splice is covered with a slitted tube, and to provide a method of manufacturing a wire harness.SOLUTION: In a wire harness 1, a color tape 9 is wound from a start-of-winding position A1 of a splice protective tape 7 to an outer periphery start-of-winding position A2 located on the radial outside of the start-of-winding position A1 of a splice protective tape 7, and also wound from the outer periphery start-of-winding position A2 toward the outer periphery one end 8A of a corrugated tube 8 so as to cover the splice protective tape 7. Furthermore, a tape 10 is wound from the outer periphery start-of-winding position A2 toward the outer periphery the other end 8B of the corrugated tube 8 located in the direction opposite from the branch direction.

Description

  The present invention relates to a wire harness having a wire bundle in which a branch line is spliced to a trunk line and a method for manufacturing the wire harness.

  In a wire harness mounted on a vehicle such as an automobile, when it is necessary to connect each other between a plurality of electric wires, the core wire is exposed by peeling off a part of each electric wire, and after connecting this core wire portion, A splice portion is formed by winding an insulating splice protective tape around the core wire portion.

  Further, the wire harness is protected by a corrugated tube having flexibility so that the wire harness does not break due to contact with a peripheral member due to vibration of the vehicle or the like.

  Conventionally, as a wire harness to which a corrugated tube is attached, one that is attached to a wire harness so that the corrugated tube covers a splice portion is known (for example, see Patent Document 1).

JP2012-248527A

  However, in such a conventional wire harness, since the splice part is covered with the corrugated tube, the presence or position of the splice part cannot be visually recognized from the outside.

  For this reason, it cannot be visually recognized from the outside that the splice portion is provided in the splice prohibition section due to an operator's work mistake. Specifically, when installing a wire harness in a vehicle, if a splice is provided in a section where the amount of deformation of the wire harness is large, the splice is likely to be damaged along with the deformation of the wire harness, and splicing is prohibited. It is necessary to perform the manufacturing work as designed so that no splice is provided in the section.

  However, in a conventional wire harness manufacturing operation, when a splice portion is provided in a splice-prohibited section due to an operator's mistake, and this splice portion is covered with a corrugated tube, the wire harness is inspected in the corrugated tube during the inspection process. There is a possibility that the presence or absence of the splice part cannot be confirmed from the outside.

  Further, when a band clip is attached to the corrugated tube and the wire harness is locked to the vehicle body panel via the band clip, the splice portion may be damaged by tightening the band clip.

  The present invention has been made to solve the conventional problems as described above, and is capable of confirming the splice portion from the outside in a state where the splice portion is covered by the tube with the slit, and the manufacture of the wire harness. It aims to provide a method.

  In order to achieve the above object, a wire harness according to the present invention includes (1) a trunk line and a branch line branched from the trunk line through a splice portion in a predetermined branch direction, and the extension direction of the trunk line A wire bundle in which a splice protection tape is wound from a winding start position provided at a predetermined position to a winding end position on the branching direction side through the splice portion, and the wire bundle so as to cover the splice protection tape. A wire harness comprising: a tube with a slit longer than a winding region length of the splice protection tape, wherein a first tape and a second tape having different colors are wound around the outer periphery of the tube with the slit The first tape is connected to the splice protection tape from a winding start position of the splice protection tape. One end of the outer periphery of the tube with slits is wound around the outer periphery winding start position of the slit tube located radially outward of the winding start position of the tape and covers the splice protection tape from the outer periphery winding start position. The second tape is wound around the outer periphery of the tube with slits located in the direction opposite to the branching direction from the outer periphery of the tube with slits adjacent to the outer periphery winding start position or the outer periphery winding position. It is comprised from what is wound toward the other end part.

  In this wire harness, it is possible to confirm from the outside that the splice portion is provided in the inner region of the first tape having a different color from the second tape in a state where the splice portion is covered with the slit tube. it can.

  For this reason, for example, when a splice part is provided in a splicing prohibition section due to an operator's work mistake and this splice part is covered with a tube with a slit, it is ensured that an operator's work mistake has occurred in the inspection process. Can be found in.

  Moreover, since the 1st tape is wound toward the outer peripheral end part of the tube with a slit located in the branch direction side from the outer periphery winding start position of the tube with a slit, the branch direction of a branch line from the outside of a tube with a slit It is possible to prevent the occurrence of wiring defects in the wire harness.

  Moreover, a band clip can be attached to the outer peripheral part of the 2nd tape which avoided the splice part, and it can prevent that a splice part damages by fastening of a band clip.

  In addition to this, since the first tape is wound around the winding start position of the splice protection tape and the outer periphery winding start position of the slit tube located radially outward of the winding start position, the slit tube is wound around the wire bundle. At the time of attaching, the wire bundle and the slitted tube can be fixed with the first tape, and the wire bundle and the slitted tube can be prevented from relatively moving. For this reason, it can prevent that a splice part and a tube with a slit move relatively, and a splice part can be located in the range in which the 1st tape is wound.

In the wire harness described in (1) above, (2) the saturation of the first tape is higher than that of the second tape.
In this wire harness, since the saturation of the first tape is higher than that of the second tape, a splice portion is provided in a region inside the first tape having a conspicuous color than the second tape. This can be easily confirmed from the outside.

  In order to achieve the above object, a method of manufacturing a wire harness according to the present invention includes (3) a wire bundle including a trunk line and a branch line branched from the trunk line in a predetermined branch direction via a splice portion. The splicing protection tape is wound from the winding start position provided at a predetermined position in the extending direction of the main line to the winding end position on the branching direction side through the splice portion, and then the first winding position is set at the winding start position. In the state where the first tape is wound, a tube with a slit longer than the winding area length of the splice protection tape is covered on the wire bundle so as to cover the splice protection tape, From the outer periphery winding start position of the tube with the slit, which is located radially outward of the winding start position, the first tape Winding toward one end of the outer periphery of the slit tube located on the branching direction side, and then adjoining the second tape of a color different from the first tape to the outer periphery winding start position or the outer periphery winding position It winds from the outer peripheral part of the said tube with a slit toward the outer peripheral other end part of the said tube with a slit located in the direction opposite to the said branch direction.

  According to this method for manufacturing a wire harness, the splice portion is provided in the region inside the first tape of a different color from the second tape in a state where the splice portion is covered with the slit tube. Can be confirmed.

  For this reason, for example, when a splice part is provided in a splicing prohibition section due to an operator's work mistake and this splice part is covered with a tube with a slit, it is ensured that an operator's work mistake has occurred in the inspection process. Can be found in.

  Moreover, since the 1st tape is wound toward the outer periphery one end part of the tube with a slit located in the branch direction side from the outer periphery winding start position of the tube with a slit, the branch direction of a branch line is confirmed from the outside of a tube with a slit Therefore, it is possible to prevent a wiring failure of the wire harness from occurring.

  Moreover, a band clip can be attached to the outer peripheral part of the 2nd tape which avoided the splice part, and it can prevent that a splice part damages by fastening of a band clip.

  In addition to this, after the first tape is wound around the winding start position of the splice protection tape, the first tape is wound from the outer circumferential winding start position of the slit tube located radially outward of the winding start position. Therefore, the wire bundle and the slitted tube can be fixed with the first tape, and the wire bundle and the slitted tube can be prevented from moving relative to each other. For this reason, it can prevent that a splice part and a tube with a slit move relatively, and a splice part can be located in the range in which the 1st tape is wound.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the wire harness which can confirm a splice part from the outside in the state where the splice part was covered with the tube with a slit, and a wire harness can be provided.

It is a figure which shows one Embodiment of the manufacturing method of the wire harness and wire harness which concern on this invention, and is an external view of a wire harness. It is a longitudinal cross-sectional view of the wire harness of one embodiment. It is a schematic block diagram of the wire harness of one embodiment. It is a figure which shows the manufacturing method of the wire harness of one Embodiment, and is a figure which shows the manufacture procedure of a wire harness in order of (a)-(c). It is a figure which shows the manufacture procedure of the wire harness following FIG.4 (b) in order of (a)-(c). It is a figure which shows the state with which the wire harness of one Embodiment was mounted | worn with the vehicle body panel.

Hereinafter, embodiments of a wire harness and a method of manufacturing the wire harness according to the present invention will be described with reference to the drawings.
FIGS. 1-6 is a figure which shows one Embodiment of the manufacturing method of the wire harness which concerns on this invention, and a wire harness.

First, the configuration will be described.
In FIG. 1, a wire harness 1 mounted on a vehicle such as a motorcycle or an automobile is spliced to a plurality of trunk lines 2 and 3 via a splice portion 6 as shown in FIGS. 2 and 3. An electric wire bundle 5 including a branch line 4 branched from the main line 2 in a predetermined direction is provided. Here, in the wire harness 1 of the present embodiment, the right direction is defined as the branch direction of the branch line 4 in FIGS.

  Further, the wire harness 1 in the present embodiment uses only one main line 2 spliced to one branch line 4 and one main line 3 not spliced to each branch line 4 for convenience of explanation. 3 and the number of branch lines 4 are many.

  The splice 6 peels off a part of the extending direction of the trunk line 2 and one end of the branch line 4 to expose the core line 2a of the trunk line 2 and the core line 4a of the branch line 4, and bundles the core lines 2a and 4a. The portion connected by the connecting portion 6a. The connecting portion 6a is a portion that is electrically connected by crimping with a caulking tool, resistance welding, ultrasonic welding, solder, or the like (see FIG. 4A).

  Further, connectors and the like (not shown) are provided at both ends in the extending direction of the main lines 2 and 3 and the other end of the branch line 4, and the main lines 2 and 3 and the branch line 4 are connected to the various electric cables of the vehicle via the connectors. Connected to the device.

  An insulating splice protective tape 7 is wound around the splice portion 6 (see FIGS. 4B and 4C). The splice protective tape 7 serves as a predetermined position of the trunk line 2 and the branching direction of the branch line 4 It is wound around the trunk line 2 and the branch line 4 from the winding start position A1 provided at the site of the trunk line 2 on the opposite side to the winding end position B1 via the splice portion 6.

  The wire bundle 5 is covered with a corrugated tube 8 with a slit as a tube with a slit, and this corrugated tube 8 has an annular concave portion 8a and an annular convex portion 8b which are continuous in the extending direction, and in the extending direction. A slit 8c is formed (see FIG. 4C).

  The corrugated tube 8 is made of an elastically deformable resin material and is formed longer than the winding region of the splice protection tape 7, that is, the region from the winding start position A1 to the winding end position B1.

  Here, the tube with a slit is not limited to the corrugated tube 8, and may be a tube with a slit in which the outer peripheral portion is flat and a slit is formed in the extending direction.

Further, a color tape 9 constituting the first tape is wound around a winding start position A1 of the splice protection tape 7 and a part of the main line 3, and the main line 2, 3 and the branch line 4 are formed by this color tape 9. The electric wire bundle 5 is configured by being bundled.
The color tape 9 is wound around the outer peripheral portion of the corrugated tube 8 through the slit 8c of the corrugated tube 8 from the winding start position A1.

  Specifically, the outer periphery winding start position A2 of the color tape 9 with respect to the corrugated tube 8 is located radially outward of the winding start position A1 of the splice protection tape 7. The color tape 9 is connected to the trunk lines 2, 3 and the branches located outside the outer peripheral end 8 </ b> A via the outer peripheral end 8 </ b> A of the corrugated tube 8 located on the branching direction side of the branch line 4 from the outer periphery winding start position A <b> 2. It is wound up to line 4.

  Further, a tape 10 constituting a second tape is wound around the outer peripheral portion of the corrugated tube 8, and this tape 10 extends in a direction opposite to the branching direction of the branch line 4 from the outer periphery winding start position A 2 of the color tape 9. It is wound up to the trunk lines 2 and 3 positioned outside the outer peripheral other end 8B via the outer peripheral other end 8B of the corrugated tube 8 positioned.

  That is, the color tape 9 is wound around a certain range in the extending direction of the corrugated tube 8 including the splice portion 6 by being wound from the outer periphery winding start position A2 to the outer peripheral end portion 8A of the corrugated tube 8.

  Further, the tape 10 is wound around a certain range in the extending direction of the corrugated tube 8 not including the splice portion 6 by being wound from the outer periphery winding start position A2 to the outer peripheral other end portion 8B of the corrugated tube 8.

  Here, the tape 10 is composed of a low-saturation tape such as black or gray, and the color tape 9 has a saturation higher than the saturation of the tape 10 such as red, yellow, or green. It consists of a tape that has. The colors of the color tape 9 and the tape 10 are not limited to these colors as long as they have different saturations.

Next, the manufacturing method of the wire harness 1 is demonstrated based on FIG. 4, FIG.
As shown in FIG. 4 (a), a trunk line 2 and a branch line 4 in which a branch line 4 is spliced to the trunk line 2 are prepared, and winding is provided at a portion of the trunk line 2 opposite to the branch direction of the branch line 4. The splice protective tape 7 is wound around the trunk line 2 and the branch line 4 from the start position A1 through the splice portion 6 to the winding end position B1 (see FIG. 4B).
Next, a part of the trunk line 3 is bundled at the winding start position A1, and the color tape 9 is wound about the trunk start position A1 together with the trunk line 3 about 2 to 3 times to perform partial stopping (see FIG. 4C).

  Next, the corrugated tube 8 is attached to the wire bundle 5 through the slit 8c in a state where the color tape 9 is wound around the winding start position A1. At this time, the main body 11 of the color tape 9 is positioned outside the corrugated tube 8, and a part of the color tape 9 is positioned inside the corrugated tube 8 through the slit 8c (see FIG. 5A).

  After covering the corrugated tube 8 over the wire bundle 5 so as to cover the splice protective tape 7 in this way, the color tape 9 is wound around the outer periphery winding start position A2 of the corrugated tube 8 located radially outward of the winding start position A1. .

  Next, the color tape 9 is wound from the outer periphery winding start position A2 through the outer peripheral end portion 8A of the corrugated tube 8 to the trunk lines 2, 3 and the branch line 4 positioned outside the outer peripheral end portion 8A (see FIG. 5B). ).

  Next, after winding the tape 10 so as to overlap the outer periphery winding start position A2, the trunk line 2 located outside the outer periphery other end portion 8B from the outer periphery winding position A2 through the outer periphery other end portion 8B of the corrugated tube 8, The tape 10 is wound up to 3 (see FIG. 5C).

  Here, when the tape 10 is wound around the outer peripheral portion of the corrugated tube 8, the winding start position of the tape 10 may be provided at a position adjacent to the outer peripheral winding start position A2 of the color tape 9. Although not shown, the wire bundle 5 from the winding end position of the color tape 9 is bundled by the tape 10 so that it can be distinguished from the color tape 9.

  As described above, the color tape 9 of the wire harness 1 of the present embodiment is moved from the winding start position A1 of the splice protection tape 7 to the outer periphery winding start position A2 that is located radially outward from the winding start position A1 of the splice protection tape 7. It is wound around the outer peripheral end 8A of the corrugated tube 8 so as to cover the splice protective tape 7 from the outer peripheral winding start position A2.

Further, the tape 10 of the wire harness 1 is wound from the outer periphery winding start position A2 toward the outer peripheral other end portion 8B of the corrugated tube 8 located in the direction opposite to the branching direction.
For this reason, it can be confirmed from the outside that the splice portion 6 is provided in the region inside the color tape 9 of a color different from that of the tape 10 in a state where the splice portion 6 is covered with the corrugated tube 8.

  Therefore, for example, when a splicing portion 6 is provided in the splicing prohibition section due to an operator's work mistake and this splice portion 6 is covered with the corrugated tube 8, the operator's work mistake has occurred in the inspection process. Can be surely discovered.

  Specifically, when the wire harness 1 is installed in a vehicle, if the splice portion 6 is provided in a section where the deformation amount of the wire bundle 5 is large, the splice portion 6 may be damaged along with the deformation of the wire bundle 5. Therefore, it is necessary to perform a manufacturing operation as designed so that the splice portion 6 is not provided in the splicing prohibition section.

  However, in the conventional wire harness manufacturing operation, if the wire harness is disposed so that the splice portion is provided in the splice-prohibited section due to an operator's work mistake, and the splice portion is covered with the corrugated tube, The presence or absence of the splice part cannot be confirmed from the outside.

  On the other hand, in the wire harness 1 of the present embodiment, since the presence or absence of the splice portion 6 in the corrugated tube 8 can be confirmed by visually observing the color tape 9, the splice is spliced into the splice prohibited section in the inspection process. It can be easily found that the part 6 is provided. For this reason, it can prevent that the quality of the wire harness 1 falls.

  Moreover, the wire harness 1 of this embodiment winds the color tape 9 from the outer periphery winding start position A2 of the corrugated tube 8 toward the outer peripheral end 8A of the corrugated tube 8 located on the branching direction side of the branch line 4. The branch direction of the branch line 4 can be confirmed from the outside of the corrugated tube 8.

  If the branching direction of the branch line 4 can be confirmed in this way, the branching direction of the branch line 4 can be easily confirmed when the wire harness 1 is folded and wired. It can be prevented from occurring.

  As shown in FIG. 6, in the wire harness 1 of the present embodiment, a band clip 12 is attached to the outer peripheral portion of the tape 10 avoiding the splice portion 6, and the wire harness 1 is attached to the vehicle body panel 13 through the band clip 12. Can be installed. For this reason, it is possible to prevent the splice portion 6 from being damaged by the tightening of the band clip 12.

  Further, since the splicing portion 6 can be avoided and the band clip 12 can be attached to the corrugated tube 8, the workability of attaching the band clip 12 to the corrugated tube 8 can be improved while preventing the splice portion 6 from being damaged. The workability of the manufacturing work of the wire harness 1 can be improved.

  In addition, since the band clip 12 can be attached to the corrugated tube 8 in the vicinity of the color tape 9, the band clip 12 can be attached in the vicinity of the splice portion 6 in consideration of the tolerance of the band clip 12. .

  Furthermore, in the wire harness 1 of the present embodiment, after the collar tape 9 is wound around the winding start position A1 of the splice protection tape 7, the outer periphery winding start position of the corrugated tube 8 located radially outward of the winding start position A1. Since the color tape 9 is wound from A2, the wire bundle 5 and the corrugated tube 8 can be fixed with the color tape 9.

  For this reason, the wire bundle 5 and the corrugated tube 8 can be prevented from moving relative to each other, and the splice portion 6 and the corrugated tube 8 can be prevented from moving relative to each other. The splice part 6 can be positioned.

  Further, since the color tape 9 of the wire harness 1 of the present embodiment has higher saturation than the tape 10, the splice portion 6 is provided in the region inside the color tape 9 having a conspicuous color than the tape 10. This can be easily confirmed from the outside.

  As described above, the wire harness and the method for manufacturing the wire harness according to the present invention have an effect that the splice portion can be confirmed from the outside in a state where the splice portion is covered with the slitted tube, and the branch line is connected to the main line. The present invention is useful as a wire harness having a wire bundle in which wires are spliced and a method for manufacturing the wire harness.

  DESCRIPTION OF SYMBOLS 1 ... Wire harness, 2, 3 ... Trunk wire, 4 ... Branch wire, 5 ... Electric wire bundle, 6 ... Splice part, 7 ... Splice protection tape, 8 ... Corrugated tube (tube with slit), 8A ... One end of outer periphery (with slit) Tube outer peripheral end), 8B ... outer peripheral other end (slit outer tube other end), 9 ... color tape (first tape), 10 ... tape (second tape) A1, ... winding start position, A2 ... outer periphery winding start position (peripheral winding start position of tube with slit), B1 ... winding end position

Claims (3)

A trunk line and a branch line branched from the trunk line through a splice part in a predetermined branch direction, and the winding line from the winding start position provided at a predetermined position in the extension direction of the trunk line through the splice part. A wire bundle in which the splice protection tape is wound up to the winding end position on the branch direction side;
The wire bundle is covered so as to cover the splice protection tape, and includes a tube with a slit longer than the winding area length of the splice protection tape,
A wire harness in which a first tape and a second tape having different colors are wound around the outer periphery of the slit tube,
The first tape is wound from the winding start position of the splice protection tape to the outer periphery winding start position of the slit tube located radially outward from the winding start position of the splice protection tape, and the outer periphery winding start is started. It is wound toward the outer peripheral end of the slit tube so as to cover the splice protective tape from a position,
The second tape is directed from the outer peripheral winding start position or the outer peripheral portion of the slit tube adjacent to the outer peripheral winding position toward the outer peripheral other end of the slit tube located in the direction opposite to the branching direction. A wire harness that is wound around.   The wire harness according to claim 1, wherein the saturation of the first tape is higher than the saturation of the second tape. Preparing a bundle of wires including a trunk line and a branch line branched from the trunk line through a splice portion in a predetermined branch direction;
After the splice protective tape is wound from the winding start position provided at a predetermined position in the extending direction of the main line to the winding end position on the branching direction side through the splice portion, the first tape is placed at the winding start position. Winding,
In the state where the first tape is wound, a tube with a slit longer than the winding area length of the splice protection tape is covered on the wire bundle so as to cover the splice protection tape,
Next, the first tape is moved from the outer periphery winding start position of the slit tube located radially outward of the winding start position toward one end of the outer periphery of the slit tube positioned on the branch direction side. Winding,
Next, the second tape of a color different from that of the first tape is placed on the slit located in the direction opposite to the branching direction from the outer periphery winding start position or the outer periphery of the slit tube adjacent to the outer periphery winding position. A method of manufacturing a wire harness, wherein the wire harness is wound toward the other end of the outer periphery of the attached tube.

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