JP2017123304A - Manufacturing method of wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a wire harness capable of easily branching the wire harness (plurality of wires) without exposing the wire from a sheet.SOLUTION: The manufacturing method of a wire harness includes a process for winding a wire in both terminal parts of a longer direction side edge of a rectangular sheet 10 constituted by containing a member for shield 20 and a member for protection 30 respectively and a process for arranging notch on at least one terminal part of a short direction side edge of the rectangular sheet 10 between laminate locations of the rectangular sheet 10 of both terminal parts respectively which is generated by winding the wire by the rectangular sheet 10 in the process for winding the wire.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a wire harness, for example, a method for manufacturing a wire harness in which a shield sheet and a protective sheet are laminated.

  Patent Document 1 discloses that a wire harness is formed by winding a sheet in which a shielding sheet and a protective sheet are laminated around a plurality of wires.

JP 2014-204485 A

  When the wire harness is bifurcated, the wiring is exposed from the sheet. In view of such a background, a simple method of manufacturing a wire harness that can branch a wire harness (a plurality of wires) without exposing the wires from the sheet is desired.

  The present invention has been made to solve such a problem, and provides a simple method for manufacturing a wire harness capable of branching a wire harness (a plurality of wires) without exposing the wires from the sheet. To do.

  The method for manufacturing a wire harness according to one aspect of the present invention includes a step of winding a wire in each of both ends of a longitudinal side edge of a rectangular sheet configured to include a shielding member and a protective member; In the step of winding the wiring, at least one end of the short side edge of the rectangular sheet between the stacked portions of the rectangular sheets at the both ends formed by the rectangular sheet winding the wiring Providing a cut in the part. With such a configuration, the wire harness (a plurality of wires) can be branched without exposing the wires from the sheet.

  The present invention provides a method of manufacturing a wire harness that can easily branch a wire harness (a plurality of wires) without exposing the wiring from the sheet.

It is sectional drawing which illustrated the wire harness which concerns on Embodiment 1, and is sectional drawing by the AA line in FIG.2 (b). (A) And (b) is the figure which illustrated the manufacturing process in the manufacturing method of the wire harness which concerns on Embodiment 1. FIG. It is the figure which illustrated the rectangular sheet of the wire harness which concerns on Embodiment 2. FIG. FIG. 6 is a cross-sectional view illustrating a wire harness according to a second embodiment. (A) is the figure which illustrated the wire harness which concerns on a comparative example, (b) is sectional drawing by the BB line in (a), (c) is the CC line in (a). It is sectional drawing by.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. However, the present invention is not limited to the following embodiment. In addition, for clarity of explanation, the following description and drawings are simplified as appropriate.

(Embodiment 1)
The wire harness which concerns on Embodiment 1 is demonstrated. For example, the wire harness is a bundle of a plurality of wires such as a power line and a signal line of a partner robot, and is used to connect a power system and a signal system between a servo amplifier and a servo amplifier. First, the configuration of the wire harness will be described.

  FIG. 1 is a cross-sectional view illustrating the wire harness according to the first embodiment, and is a cross-sectional view taken along line AA in FIG. 2A and 2B are diagrams illustrating a manufacturing process in the method for manufacturing the wire harness according to the first embodiment.

  As shown in FIG.1 and FIG.2, the wire harness 1 is a cable-shaped thing which the both ends branched into two. A bifurcated portion of the wire harness 1 is referred to as a branched portion 16, and an unbranched portion is referred to as a main body portion 17. Note that only one end of the wire harness 1 may be bifurcated. The wire harness 1 includes a rectangular sheet 10, a power line bundle 41, and a signal line bundle 51.

  As shown in FIG. 2A, the rectangular sheet 10 is, for example, a thin flexible sheet-like member. A shape obtained by extending and flattening the rectangular sheet 10 is a rectangular shape. The surface that becomes flat when stretched is called the sheet surface. The rectangular sheet 10 has one sheet surface 11 and the other sheet surface 12 on the opposite side.

  In the rectangular sheet surface, a direction in which a long side extends is referred to as a longitudinal direction. The longitudinal direction is the direction in which the wire harness 1 extends. The end of the long side on the sheet surface of the rectangular sheet 10 is referred to as the end of the longitudinal side edge. The rectangular sheet 10 has one end 10a on the side edge in the longitudinal direction and the other end 10b on the opposite side.

  In the rectangular sheet surface, a direction in which a short side extends is referred to as a short direction. Moreover, the edge part of a short side is called the edge part of a transversal direction side edge. The rectangular sheet 10 has one end portion 10c on the lateral side edge and the other end portion 10d on the opposite side. The rectangular sheet 10 includes a shielding member 20 and a protection member 30.

  The protection member 30 is, for example, a thin flexible sheet-like member. The protective member 30 includes an insulating material. The shape obtained by extending and flattening the protective member 30 is a rectangular shape. The surface that becomes flat when extended in the protective member 30 is referred to as a sheet surface. The protective member 30 has one sheet surface 31 and the other sheet surface 32 on the opposite side. The protective member 30 has one end 30a on the side edge in the longitudinal direction and the other end 30b on the opposite side.

  The shield member 20 is laminated on one sheet surface 31 of the protection member 30. The shielding member 20 is also a thin flexible sheet-like member, for example. The shield member 20 includes a conductive material. The shield member 20 covers the end portion 30a and the end portion 30b on the side edge in the longitudinal direction of the protection member 30, and is further folded at the end portion 30a and the end portion 30b. The shielding member 20 covers the sheet surface 32 from the end 30a and the end 30b to a predetermined width portion on the other sheet surface 32 of the protection member 30.

  The rectangular sheet 10 is formed by laminating the shielding member 20 and the protecting member 30 except for a portion having a predetermined width from the end of the longitudinal side edge of the rectangular sheet 10. On the other hand, a part having a predetermined width from the end of the longitudinal side edge of the rectangular sheet 10 is formed by sandwiching the protective member 30 between the shield members 20 and laminating them.

  In addition, a cut 15 is provided at at least one end of the lateral edge of the rectangular sheet 10. 2 (a) and 2 (b), cuts 15 are provided at both ends of one end 10c and the other end 10d. The cut 15 is provided, for example, perpendicular to the short side of the rectangular sheet 10 toward the center of the rectangular sheet 10. As a result, the sheet surface of the rectangular sheet 10 is divided into a branch portion 16 provided with a cut 15 and a main body portion 17 therebetween.

As shown in FIG. 1, the power line bundle 41 is obtained by bundling one or a plurality of power lines 40 with, for example, an insulating tape (not shown). The power line 40 is, for example, a wire that supplies power. The power line 40 is formed, for example, by covering the periphery of a conductive material wire with an insulating member.
The signal line bundle 51 is obtained by bundling one or a plurality of signal lines 50 with, for example, an insulating tape (not shown). The signal line 50 is a wire that transmits a signal. For example, the signal line 50 is formed by covering the periphery of a wire made of a conductive material with an insulating member.

  As shown in FIG. 1, in the main body portion 17, the power line bundle 41 is wound around the end portion 10 a of the rectangular sheet 10 by the rectangular sheet 10. The power line bundle 41 is wound so that the sheet surface 11 on which the shielding member 20 is laminated on the entire surface is inside. Further, the signal line bundle 51 is wound on the end portion 10b side of the rectangular sheet 10. The signal line bundle 51 is wound so that the sheet surface 11 on which the shielding member 20 is laminated on the entire surface is inside. Thereby, the lamination | stacking location produced when the rectangular sheet 10 winds the power wire bundle 41 in roll shape on each of the both ends of the edge part 10a and the edge part 10b of the rectangular sheet 10, and the rectangular sheet 10 is the signal line bundle 51. Are formed in a roll shape.

In the laminated portion, the power line 40 is wound around the rectangular sheet 10 one or more times. Further, the signal line 50 is wound around the rectangular sheet 10 one or more times.
A cut 15 is provided at at least one end of the lateral edge of the rectangular sheet 10 between the stacked portions of the rectangular sheets 10 on both ends of the rectangular sheet 10.

  As shown in FIG. 2B, since the cuts 15 are provided at both ends, the wire harness 1 is bifurcated at the branch portion 16 provided with the cuts 15. On the end 10c side, the rectangular sheet 10 is wound in a roll shape with the wire harness 1a formed of a laminated portion in which the rectangular sheet 10 is wound in a roll shape around the power line 40 and the signal line 50 in the center. It branches to the wire harness 1b which consists of a lamination | stacking location. In each wire harness 1a and 1b, the rectangular sheet 10 is wound up to the notch 15 portion.

  At the end 10d side, the rectangular sheet 10 is wound in a roll shape with the wire harness 1c formed of a laminated portion in which the rectangular sheet 10 is wound in a roll shape around the power line 40 and the signal line 50 in the center. It branches to the wire harness 1d which consists of a lamination | stacking location. In each wire harness 1c and 1d, the rectangular sheet 10 is wound up to the notch 15 portion.

  Connectors 60 are provided at the ends of the wire harnesses 1a, 1b, 1c and 1d opposite to the main body portion 17, respectively. An earth wire for grounding is attached to the end portions 10c and 10d side of the shielding member 20.

  Next, the manufacturing method of the wire harness 1 which concerns on Embodiment 1 is demonstrated. First, as shown in FIG. 2A, a rectangular sheet 10 is prepared. The rectangular sheet 10 has the same configuration as described above. A portion having a certain width from the end portion 10a and the end portion 10b of the rectangular sheet 10 is subjected to a brazing process so as to be rounded into a cylindrical shape with the sheet surface 11 as an inner side and the longitudinal direction as a central axis. Further, a cut 15 is provided at at least one end of the lateral edge of the rectangular sheet 10. In FIG. 2A, cuts 15 are formed at both ends of the end 10c and the end 10d.

  Next, the wiring is wound around both ends of the longitudinal side edge of the rectangular sheet 10. The wiring includes, for example, one or a plurality of power lines 40 and one or a plurality of signal lines 50. One or a plurality of power lines 40 are fixed together by, for example, an insulating tape (not shown). Thereby, the power line bundle 41 is formed. Further, one or a plurality of signal lines 50 are fixed together with, for example, an insulating tape (not shown). Thereby, the signal line bundle 51 is formed. The connectors 60 are joined to the ends of the wire harnesses 1a, 1b, 1c and 1d opposite to the wire harness 1, respectively.

  The power line bundle 41 is arranged in the vicinity of the end portion 10a of the longitudinal side edge on the sheet surface 11 of the rectangular sheet 10 so as to be along the long side. Further, the signal line bundle 51 is arranged in the vicinity of the end portion 10b of the longitudinal side edge on the sheet surface 11 of the rectangular sheet 10 so as to be along the long side.

  Then, the power line bundle 41 is wound from the end portion 10 a of the longitudinal side edge of the rectangular sheet 10. The end 10a of the rectangular sheet 10 comes into contact with the sheet surface 11 of the rectangular sheet 10 as it is rolled up. As a result, the power line 40 is wound once. At least one round is involved. In this way, the rectangular sheet 10 is wound around the power line 40 in the form of a roll, whereby a laminated portion of the rectangular sheet 10 is formed on the end portion 10a side of the rectangular sheet 10.

  Further, the signal line bundle 51 is wound from the end portion 10 b of the longitudinal side edge of the rectangular sheet 10. The end portion 10b of the rectangular sheet 10 contacts the sheet surface 11 of the rectangular sheet 10 as it is rolled up. As a result, the signal line 50 is wound once. At least one round is involved. As described above, the rectangular sheet 10 is wound around the signal line 50 in the form of a roll, whereby a laminated portion of the rectangular sheet 10 is formed on the end portion 10b side of the rectangular sheet 10.

  In the step of winding the wiring, the lateral edge of the rectangular sheet 10 is placed between the stacked portions of the rectangular sheet 10 on both ends of the end 10a and the end 10b that are generated when the rectangular sheet 10 winds the wiring. A cut 15 is provided at at least one of the ends. Further, the cuts 15 are provided in advance so that the cuts 15 are arranged at such positions.

  Since the cuts 15 are provided at both ends, the wire harness 1 is bifurcated at the branching portion 16 provided with the cuts 15. One is branched into a wire harness 1a and a wire harness 1b. In each wire harness 1a and 1b, the rectangular sheet 10 is wound up to the notch 15 portion.

The other is branched into a wire harness 1c and a wire harness 1d. In each wire harness 1c and 1d, the rectangular sheet 10 is wound up to the notch 15 portion.
An earth wire for grounding is attached to an end of the shielding member 20 in the longitudinal direction. In this way, the wire harness 1 is manufactured.

  According to the present embodiment, the wiring is wound around both ends of the side edge in the longitudinal direction of the rectangular sheet 10 including the shielding member 20 and the protection member 30. And the notch 15 is provided between the lamination | stacking locations of the rectangular sheet 10 of each both ends produced when the rectangular sheet 10 winds a wiring, and it branches into two. Therefore, the wire harness (a plurality of wires) can be branched without exposing the wires from the rectangular sheet 10.

  Further, the wiring is wound by the rectangular sheet 10 in which the shielding member 20 is laminated on the inner side and the protective member 30 is laminated on the outer side. The shielding member 20 is wound around the power line bundle 41 and the signal line bundle 51 at least once. Therefore, the shielding effect can be improved. In addition, the effect of protecting the wiring can be improved.

  Further, the portion of the shielding member 20 that extends to the sheet surface 12 comes into contact with the sheet surface 11 of the shielding member 20 when it is rolled up once. Therefore, by making the contact, the wiring can be covered without a gap corresponding to the thickness of the protective member 30. Thereby, the shielding effect can be further improved.

  Since the longitudinal side edge of the rectangular sheet 10 is brazed in advance, the wire bundle can be easily wound. Since the rectangular sheet 10 is a flexible sheet-like member, the wire harness 1 can be easily bent.

(Embodiment 2)
Next, the wire harness 2 according to the second embodiment will be described. In the present embodiment, at one end portion 70a of the longitudinal side edge of the rectangular sheet 70, one sheet surface 71 is wound inside, whereas at the other end portion 70b, the other sheet surface 72 is wound. The wire is wound inside.

  FIG. 3 is a view illustrating a rectangular sheet of the wire harness according to the second embodiment, and FIG. 4 is a cross-sectional view illustrating the wire harness according to the second embodiment.

  As shown in FIGS. 3 and 4, the rectangular sheet 70 of the present embodiment is provided with two shielding members 80 and 90. The two shielding members 80 and 90 are divided and laminated in two places on the side edge in the longitudinal direction of the protective member 30 on the end 30a side and the end 30b side. That is, the shielding member 80 is provided on the end 30 a side of the cut 75 in the sheet surface 31 of the protective member 30. The shield member 80 covers the sheet surface 31 and the end portion 30a of the protection member 30, and further covers the sheet surface 32 from the end portion 30a to a portion having a predetermined width in the sheet surface 32 of the protection member 30.

  The shield member 90 is provided closer to the end 30 b than the notch 75 in the sheet surface 32 of the protection member 30. The shield member 90 covers the sheet surface 32 and the end portion 30b of the protection member 30, and further covers the sheet surface 32 from the end portion 30b to a portion having a predetermined width in the sheet surface 31 of the protection member 30.

  Wiring is wound around both ends of the longitudinal side edge of the rectangular sheet 70. The power line bundle 41 is wound around the end portion 70 a of the rectangular sheet 70 by the rectangular sheet 70. The power line bundle 41 is wound so that the sheet surface 71 on which the shielding member 80 is laminated is on the inner side.

  The signal line bundle 51 is wound around the end portion 70 b of the rectangular sheet 70. The signal line bundle 51 is wound so that the sheet surface 72 on which the shielding member 90 is laminated is on the inner side. Thereby, the lamination | stacking location produced when the rectangular sheet 70 winds the power wire bundle 41 in roll shape, and the rectangular sheet 70 are the signal wire bundle 51 in the both ends of the edge part 70a and the edge part 70b of the rectangular sheet 70, respectively. Are formed in a roll shape.

  Next, the manufacturing method of the wire harness 2 which concerns on Embodiment 2 is demonstrated. First, the rectangular sheet 70 is prepared. A portion having a certain width from one end portion 70a of the rectangular sheet 70 is subjected to a brazing process so as to be rounded into a cylindrical shape having the one sheet surface 71 as an inner side and having the longitudinal direction as a central axis. . Further, a portion having a certain width from the other end portion 70b of the rectangular sheet 70 is subjected to a brazing process so as to be rounded into a cylindrical shape having the other sheet surface 72 inside and having the longitudinal direction as a central axis. ing. Further, a cut 75 is provided in at least one end of the lateral edge of the rectangular sheet 70.

  Next, the wiring is wound around both ends of the longitudinal side edge of the rectangular sheet 70. The power line bundle 41 is arranged in the vicinity of the end portion 70a of the longitudinal side edge on the sheet surface 71 of the rectangular sheet 70 along the long side. Further, the signal line bundle 51 is arranged in the vicinity of the end portion 70 b of the longitudinal side edge on the sheet surface 72 of the rectangular sheet 70 so as to be along the long side.

  Next, the power line bundle 41 is wound from the end portion 70 a on the side edge in the longitudinal direction of the rectangular sheet 70 with the sheet surface 71 facing inward. The end portion 70 a of the rectangular sheet 70 comes into contact with the sheet surface 71 of the rectangular sheet 70 as it is rolled up. As a result, the power line bundle 41 is wound once. At least one round is involved. As described above, the rectangular sheet 70 is wound around the power line bundle 41 in the form of a roll, so that a laminated portion of the rectangular sheet 70 is formed on the end portion 70a side of the rectangular sheet 70.

  Further, the signal line bundle 51 is wound from the end portion 70 b of the longitudinal side edge of the rectangular sheet 70 with the sheet surface 72 facing inward. The end portion 70 b of the rectangular sheet 70 comes into contact with the sheet surface 72 of the rectangular sheet 70 as it is rolled up. As a result, the signal line bundle 51 is wound once. At least one round is involved. As described above, the rectangular sheet 70 is wound around the signal line bundle 51 in the form of a roll, whereby a laminated portion of the rectangular sheet 70 is formed on the end portion 70b side of the rectangular sheet 70.

  In the step of winding the wiring, the side edge in the short direction of the rectangular sheet 70 is formed between the stacked portions of the rectangular sheet 70 on both ends of the end portion 70a and the end portion 70b. A notch 75 is provided at at least one end of each. Further, the cut 75 is provided in advance so that the cut 75 is arranged at such a position.

  Since the cuts 75 are provided at both ends, the wire harness 2 is bifurcated at the branch portion 16 provided with the cuts 75. In each branched wire harness, the rectangular sheet 70 is wound up to the notch 75 portion.

  According to the wire harness 2 according to the second embodiment, the portion of the rectangular sheet 70 where the power line bundle 41 and the signal line bundle 51 are not caught can be reduced. Therefore, the shielding effect of the wire harness 2 can be further improved. Moreover, the intensity | strength of the wire harness 2 can be improved further by reducing the part which is not caught. Other configurations and effects of the wire harness 2 according to the second embodiment are the same as those of the first embodiment.

(Embodiment 3)
Next, Embodiment 3 will be described. In the wire harness 3 of the third embodiment, the shield member is provided only in the power line bundle 41 in the first and second embodiments. That is, in the wire harness 1, the shielding member 20 is provided only on the end 30 a side of the notch 15 in the sheet surface 31 of the protective member 30. In the wire harness 2, only the shielding member 80 is provided without providing the shielding member 90. Other configurations are the same as those in the first and second embodiments.

  According to the wire harness 3 according to the third embodiment, since the shielding member is provided only in the power line bundle 41, the cost of the shielding member can be reduced. Other configurations and effects other than the shielding effect of the signal line 50 are the same as those in the first and second embodiments.

Next, the wire harness which concerns on a comparative example is demonstrated.
Fig.5 (a) is the figure which illustrated the wire harness which concerns on a comparative example, (b) is sectional drawing by the BB line in (a), (c) is C- in (a). It is sectional drawing by a C line.

  As shown in FIGS. 5A to 5C, in the wire harness 101 of the comparative example, the shield sleeve 120 of the braided conductor is passed through the power line bundle 41 and the signal line bundle 51, respectively. Then, the power line bundle 41 and the signal line bundle 51 that have passed through the shield sleeve 120 are put together and covered with a protective member 130 such as a corrugated tube provided with a slit. Thereafter, the slit in the protective member 130 corresponding to the main body portion 117 is closed with an adhesive tape. In this way, the main body portion 117 is formed.

  Next, the power line bundle 41 and the signal line bundle 51 that have passed through the shield sleeve 120 in the branch portion 116 are separately covered with a protective member 130 and the slit is closed with an adhesive tape. In this way, the branch portion 116 is formed.

  In the comparative example, when the outer shape of the connector 60 and the thickness of the connection portion of the power line bundle 41 and the signal line bundle 51 are increased, it becomes difficult to pass the shield sleeve 120 through the power line bundle 41 and the signal line bundle 51. Even if the power line bundle 41 and the signal line bundle 51 become long, it becomes difficult to pass the shield sleeve 120 through the power line bundle 41 and the signal line bundle 51.

  Further, when the outer shape of the connector 60 of the power line bundle 41 and the signal line bundle 51 and the thickness of the connection portion are further increased by the waterproof connector or the like and cannot pass through the shield sleep 120, the power line bundle is attached without attaching the connector. 41 and the signal line bundle 51 must be passed through the shield sleep 120. Then, it is necessary to attach the connector 60 after passing the shield sleep 120 with terminals crimped to the ends of the power line bundle 41 and the signal line bundle 51. Therefore, the work becomes more difficult.

  Thus, in the comparative example, since the shielding member is a sleeve (cylindrical shape), it takes time to branch the wire harness 101. In the comparative example, the shielding member and the protective member are separated. This also makes it troublesome to branch the wire harness 101 and increases the manufacturing cost.

  On the other hand, in this embodiment, the rectangular sheet 10 comprised including the member 20 for a shield and the member 30 for protection is used. And in each of the both ends of a longitudinal direction side edge, wiring is wound and the notch is provided between the lamination | stacking locations of the rectangular sheet 10, and it branches into two. Therefore, the wire harness can be easily branched without exposing the wiring from the rectangular sheet 10.

  As mentioned above, although embodiment about the manufacturing method of the wire harness which concerns on this invention was described, it can change in the range which does not deviate not only from said structure but the technical idea of this invention.

  For example, in the method for manufacturing the wire harness according to the first to third embodiments, (1) the wiring is performed at each of both ends of the longitudinal side edge of the rectangular sheet including the shielding member and the protection member. A step of winding, and (2) before the step of winding the wiring, in the step of winding the wiring, the rectangular sheet is generated between the stacked portions of the rectangular sheets at the both ends generated by winding the wiring. In addition, although the step of providing a cut in at least one end of the lateral edge of the rectangular sheet is included, the present invention is not limited to this. (1) In each of the both ends of the longitudinal side edge of the rectangular sheet comprising a shielding member and a protective member, (2) After the step of winding the wiring, In the step of winding the wiring, at least one end of the short side edge of the rectangular sheet between the stacked portions of the rectangular sheets at the both ends formed by the rectangular sheet winding the wiring You may include the process of providing a notch in a part.

1, 2, 3, 101 Wire harness 10, 70 Rectangular sheet 10a, 10b, 10c, 10d, 30a, 30b End portion 11, 12, 31, 32, 71, 72 Sheet surface 15, 75 Incision 16, 116 Branch portion 17, 117 Body portion 20, 80, 90 Shield member 30, 130 Protective member 40 Power line 41 Power line bundle 50 Signal line 51 Signal line bundle 60 Connector 120 Shield sleeve

Claims (1)

A step of winding a wire in each of both ends of the longitudinal side edge of the rectangular sheet configured to include a shielding member and a protective member;
In the step of winding the wiring, at least one end of the short side edge of the rectangular sheet between the stacked portions of the rectangular sheets at the both ends formed by the rectangular sheet winding the wiring A process of providing a cut in the part;
The manufacturing method of the wire harness containing.

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