Manufacturing method of wire harness and wire holder

Abstract

To provide a method of manufacturing a wire harness, and a wire holder capable of preventing misassembling.SOLUTION: In a wire holder 1, a pair of wire-holder divided bodies are combined facing each other to form a wire insertion hole, and a positioning rib formed on one of the pair is mutually accommodated in a positioning hole formed on the other of the pair. The positioning rib and a different-diameter wire-holder divided body interfere with each other in a state in which one of the wire-holder divided bodies faces and combined with the different-diameter wire-holder divided body that configures a different-diameter wire-holder that holds a different-diameter wire with an outer diameter different from that of a wire W. In other words, in the wire holder 1, a large-diameter positioning rib 22 and a small-diameter positioning rib 32 interfere with each other in a state in which a large-diameter wire-holder divided body 12 and a small-diameter wire-holder divided body 13 are combined facing each other.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a manufacturing method for a wire harness and a wire holder. [Background technology]

[0002] For example, Patent Document 1 discloses an electric wire holder that is applied to vehicle wire harnesses, connectors, etc., in which a pair of identically shaped divided bodies are assembled from both sides of an electric wire via crimping pieces to hold the electric wire.

[0003] Furthermore, Patent Document 2 discloses an electric wire storage case in which electric wires are stored within separate bodies, one of the bodies being rotated around a hinge to close, and a locking piece fitting into and locking into a locking hole to hold the electric wire. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-252919 A [Patent Document 2] JP 2013-134944 A Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the electric wire holders described in the above Patent Documents 1 and 2 may have divided bodies set for each wire diameter of the electric wire. Such electric wire holders can be combined with divided bodies that match the wire diameter of the electric wire and divided bodies that do not match the wire diameter of the electric wire. For example, when assembling the electric wire holder to the electric wire, there is room for improvement in that there is a risk of incorrect assembly due to the mixture of two types of divided bodies.

[0006] An object of the present invention is to provide a manufacturing method for a wire harness and a wire holder that can prevent incorrect assembly. [Means for solving the problem]

[0007] In order to achieve the above object, a method for manufacturing a wire harness according to the present invention includes a selection step of selecting a pair of divided bodies constituting an electric wire holder for holding an electric wire, the divided body being a large diameter electric wire holder divided body constituting a large diameter electric wire holder for holding a large diameter electric wire, the electric wire having a relatively large outer diameter, and a small diameter electric wire holder divided body constituting a small diameter electric wire holder for holding a small diameter electric wire, the electric wire having a relatively small outer diameter, according to an outer diameter of the electric wire to be assembled, and a fabrication step of forming a pair of the divided bodies selected in the selection step and assembling the pair of divided bodies to the electric wire to be assembled to constitute the electric wire holder and fabricate a wire harness, the large diameter electric wire holder divided body having a large diameter electric wire groove formed corresponding to the outer diameter of the large diameter electric wire, a first positioning rib provided alongside the large diameter electric wire groove, and a first positioning hole provided alongside the first positioning rib, and the pair is assembled facing each other. the first positioning rib formed in one of the pair is accommodated in the first positioning hole formed in the other of the pair, and the small diameter electric wire holder segment has a small diameter electric wire groove formed corresponding to an outer diameter of the small diameter electric wire, a second positioning rib provided alongside the small diameter electric wire groove, and a second positioning hole provided alongside the second positioning rib, and when the pair is assembled facing each other, the small diameter electric wire grooves face each other to form a small diameter electric wire insertion hole for inserting and holding the small diameter electric wire, and the second positioning rib formed in one of the pair is accommodated in the second positioning hole formed in the other of the pair, and when the large diameter electric wire holder segment and the small diameter electric wire holder segment are assembled facing each other, the first positioning rib and the second positioning rib interfere with each other. Effect of the Invention

[0008] Advantageous Effects of Invention According to the manufacturing method of the wire harness and the wire holder of the present invention, it is possible to prevent erroneous assembly of the wire holder to the wires. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is an exploded perspective view showing a schematic configuration of a wire harness according to an embodiment. [Diagram 2] FIG. 2 is a perspective view showing a schematic configuration of the large diameter electric wire holder according to the embodiment. [Diagram 3] FIG. 3 is a plan view of the divided body of the large diameter electric wire holder according to the embodiment when viewed from the electric wire side. [Figure 4] FIG. 4 is a plan view of the divided body of the large diameter electric wire holder according to the embodiment when viewed from the divided body side. [Diagram 5] FIG. 5 is a perspective view showing a schematic configuration of a small diameter electric wire holder according to an embodiment. [Figure 6] FIG. 6 is a plan view of the divided body of the small diameter electric wire holder according to the embodiment when viewed from the electric wire side. [Figure 7] FIG. 7 is a plan view of the divided body of the small diameter electric wire holder according to the embodiment when viewed from the divided body side. [Figure 8] FIG. 8 is a perspective view showing a state in which the large diameter electric wire holder and the small diameter electric wire holder are to be combined. [Figure 9] FIG. 9 is a side view showing a state in which the large diameter electric wire holder and the small diameter electric wire holder are combined. [Figure 10] FIG. 10 is a perspective view showing a schematic configuration of the electric wire holder assembling jig. [Figure 11] FIG. 11 is a perspective view showing a schematic configuration of a small diameter electric wire holder assembling jig to which a small diameter electric wire holder is assembled. [Figure 12] FIG. 12 is a cross-sectional view showing a schematic configuration of a small diameter electric wire holder assembling jig to which a small diameter electric wire holder is assembled. [Figure 13] FIG. 13 is a perspective view showing a schematic configuration of a small diameter electric wire holder assembling jig to which a large diameter electric wire holder is assembled. [Figure 14] FIG. 14 is a cross-sectional view showing a schematic configuration of a large-diameter electric-wire holder assembling jig to which a large-diameter electric-wire holder is assembled. [Figure 15]FIG. 15 is a flowchart showing an example of a method for manufacturing the wire harness according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments. In other words, the components in the following embodiments include those that a person skilled in the art can easily imagine or that are substantially the same, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention.

[0011] [Embodiment] The electric wire holder 1 according to this embodiment shown in Fig. 1 is mounted on a vehicle such as an automobile and incorporated into a wire harness WH. The wire harness WH is, for example, a component in which a plurality of electric wires W used for power supply and signal communication are bundled together to connect each device mounted on the vehicle, and the plurality of electric wires W are connected to each device using a connector or the like. The wire harness WH includes electric wires W, an electric wire holder 1 that holds the electric wires W, and a holder housing 50 that houses the electric wire holder 1.

[0012] In the following description, among the first, second, and third directions that intersect with each other, the first direction is referred to as the "insertion direction X", the second direction is referred to as the "width direction Y", and the third direction is referred to as the "attachment / detachment direction Z". Here, the insertion direction X, the width direction Y, and the attachment / detachment direction Z are perpendicular to each other. The insertion direction X corresponds to the insertion direction of the electric wire W into the electric wire holder 1. The width direction Y corresponds to the width direction of the electric wire holder 1. The attachment / detachment direction Z corresponds to the attachment / detachment direction in which one of a pair of divided bodies constituting the electric wire holder 1 described later is attached to and detached from the electric wire W. In addition, in the attachment / detachment direction Z of the electric wire holder 1, the side where the electric wire W is located may be referred to as the electric wire side, and the side where the divided body is located may be referred to as the divided body side. Unless otherwise specified, each direction used in the following description will be described as a direction in a state in which each part of the electric wire holder 1 is assembled to the electric wire W.

[0013] The electric wire W is formed, for example, of a metal rod in which the outside of a conductive rod-shaped member is covered with an insulating covering, or an electric wire in which the outside of a conductor (core wire) made of a plurality of conductive metal strands is covered with an insulating covering. The electric wire W in this embodiment includes a large diameter electric wire WA and a small diameter electric wire WB as two types of electric wires having different outer diameters. The large diameter electric wire WA has an outer diameter relatively larger than that of the small diameter electric wire WB. The small diameter electric wire WB has an outer diameter relatively smaller than that of the large diameter electric wire WA.

[0014] The wire holder 1 of this embodiment includes two types of wire holders, namely, a large diameter wire holder 2 that holds a large diameter wire WA, and a small diameter wire holder 3 that holds a small diameter wire WB. The large diameter wire holder 2 and the small diameter wire holder 3 have an elliptical cross-sectional shape when viewed from the insertion direction X.

[0015] The large diameter electric wire holder 2 holds, for example, two large diameter electric wires WA arranged along the insertion direction X. The large diameter electric wire holder 2 is accommodated in the holder housing 50 in a state in which the large diameter electric wire holder 2 holds the two large diameter electric wires WA. The large diameter electric wire holder 2 has a pair of large diameter electric wire insertion holes 2a. The large diameter electric wire insertion holes 2a are formed by penetrating the large diameter electric wire holder 2 along the insertion direction X.

[0016] The small diameter electric wire holder 3 holds, for example, two small diameter electric wires WB arranged along the insertion direction X. The small diameter electric wire holder 3 is accommodated in the holder housing 50 in a state in which it holds the two small diameter electric wires WB. The small diameter electric wire holder 3 has a pair of small diameter electric wire insertion holes 3a. The small diameter electric wire insertion holes 3a are formed by penetrating the small diameter electric wire holder 3 along the insertion direction X. The holder housing 50 is not dedicated to each of the large diameter electric wire holder 2 and the small diameter electric wire holder 3, but is shared.

[0017] As shown in Figures 1, 2, 3 and 4, the large diameter electric wire holder 2 is composed of a pair of large diameter electric wire holder segments 12, 12. The large diameter electric wire holder 2 is configured in a state in which the pair of large diameter electric wire holder segments 12, 12 are assembled to the large diameter electric wire WA to be assembled and faced in the attachment / detachment direction Z. The pair of large diameter electric wire holder segments 12, 12 have the same shape. The large diameter electric wire holder segment 12 has a main body 20, a large diameter electric wire groove 21, a large diameter positioning rib 22, a large diameter positioning hole 23, a locking rib 24, a locking piece 25, a locking projection 26, a group of lightening holes 27, a locking groove 28 and a locking protrusion 29. The large diameter electric wire holder segment 12 is integrally molded from an insulating resin material or the like, with the main body 20, large diameter electric wire groove 21, large diameter positioning rib 22, large diameter positioning hole 23, locking rib 24, locking piece 25, locking protrusion 26, lightening hole group 27, locking groove 28, and locking protrusion 29.

[0018] The main body 20 constitutes a main member that holds the large diameter electric wire WA inserted through the large diameter electric wire insertion hole 2a in the large diameter electric wire holder 2. The main body 20 is formed so that its cross section when viewed from the insertion direction X is W-shaped.

[0019] The pair of large-diameter electric wire grooves 21, 21 are formed corresponding to the large-diameter electric wire WA, and are recessed from the electric wire side toward the divided body side in the mounting / removal direction Z of the main body 20. When the main body 20 is viewed from the mounting / removal direction Z, one of the pair of large-diameter electric wire grooves 21, 21 is located between the large-diameter positioning rib 22 and the locking piece 25 that face each other in the width direction Y, and the other is located between the large-diameter positioning hole 23 and the locking protrusion 26 that face each other in the width direction Y. The large-diameter electric wire groove 21 is open at both ends in the insertion direction X of the main body 20, and is formed to have a U-shaped or semicircular cross-sectional shape as viewed from the insertion direction X. When the large-diameter electric wire holder divided body 12 is assembled to a holder assembly jig 100 described later, the large-diameter electric wire WA is inserted into the large-diameter electric wire groove 21 from the electric wire side toward the divided body side in the mounting / removal direction Z. The width of the large diameter electric wire groove 21 in the width direction Y is set corresponding to the outer diameter RA of the large diameter electric wire WA. When the pair of large diameter electric wire holder segments 12, 12 are assembled facing each other, the large diameter electric wire grooves 21 face each other to form a large diameter electric wire insertion hole 2a into which the large diameter electric wire WA is inserted and held.

[0020] The large diameter positioning rib 22 is an example of a first positioning rib, and is a portion arranged side by side with the large diameter electric wire groove portion 21 in the width direction Y and formed to protrude from the division surface 2d toward the electric wire side. Here, the division surface 2d is an opposing surface that faces in the attachment / detachment direction Z when one large diameter electric wire holder segment 12 is assembled with the other large diameter electric wire holder segment 12 facing each other. One large diameter positioning rib 22 is provided for one large diameter electric wire holder segment 12. The large diameter positioning rib 22 is formed so that its cross-sectional shape when viewed from the electric wire side in the attachment / detachment direction Z is rectangular. When viewed from the electric wire side in the attachment / detachment direction Z, the large diameter positioning rib 22 is located between the large diameter electric wire groove portions 21, 21 and between the locking protrusions 29, 29 arranged side by side in the insertion direction X. The large diameter positioning rib 22 is received in the large diameter positioning hole 23 of one large diameter electric wire holder segment 12 when the other large diameter electric wire holder segment 12 is assembled facing each other.

[0021] The large diameter positioning hole 23 is an example of a first positioning hole, and is a through hole that is arranged side by side with the large diameter positioning rib 22 in the width direction Y and penetrates from the division surface 2d toward the division body side. One large diameter positioning hole 23 is provided for each large diameter electric wire holder division body 12. The large diameter positioning hole 23 is formed so that the opening shape is rectangular when viewed from the electric wire side in the attachment / detachment direction Z. When viewed from the electric wire side in the attachment / detachment direction Z, the large diameter positioning hole 23 is located between the large diameter electric wire grooves 21, 21 and between the locking ribs 24, 24 that are arranged side by side in the insertion direction X. The large diameter positioning hole 23 accommodates the large diameter positioning rib 22 of the other large diameter electric wire holder division body 12 when one large diameter electric wire holder division body 12 is assembled to the other large diameter electric wire holder division body 12 facing each other.

[0022] The locking rib 24 is provided alongside the large-diameter positioning hole 23 and is a portion formed to protrude from the division surface 2d towards the electric wire side. Two locking ribs 24 are provided for one large-diameter electric wire holder division 12. The locking rib 24 is formed to have a rectangular cross-sectional shape, as viewed from the electric wire side in the attachment / detachment direction Z, different from that of the large-diameter positioning rib 22. The two locking ribs 24 face each other in the insertion direction X across the large-diameter positioning hole 23. The locking rib 24 is inserted into the locking groove 28 of the other large-diameter electric wire holder division 12 in a state in which one large-diameter electric wire holder division 12 is assembled with the other large-diameter electric wire holder division 12 facing each other. The two locking ribs 24 each have locking projections 24a formed to face each other in the insertion direction X. The locking projection 24a is engaged with a locking protrusion 29 provided in the locking groove 28 of one large diameter electric wire holder segment 12 when the other large diameter electric wire holder segment 12 is assembled face to face with the other large diameter electric wire holder segment 12.

[0023] The locking piece 25 is formed at one end of the main body 20 in the width direction Y, and is a portion that is locked to a locking projection 26 of one large diameter electric wire holder segment 12 when one large diameter electric wire holder segment 12 is assembled to the other large diameter electric wire holder segment 12 facing each other. The locking piece 25 is provided on the holder outer circumferential surface 3c of the large diameter electric wire holder 2.

[0024] The locking projection 26 is formed on the other end of the main body 20 in the width direction Y, and is a portion that is locked to the locking piece 25 of the other large diameter electric wire holder segment 12 when one large diameter electric wire holder segment 12 is assembled facing the other large diameter electric wire holder segment 12. The locking projection 26 is provided on the holder outer circumferential surface 2c of the large diameter electric wire holder 2.

[0025] As shown in FIG. 4, the group of lightening holes 27 is composed of a plurality of recesses provided on the outer peripheral surface 2c of the large-diameter electric wire holder 2 as lightening holes. In this embodiment, the group of lightening holes 27 includes four first lightening holes 27a. The first lightening holes 27a accommodate the first protrusions 125 formed on the holder assembly jig 100 when the large-diameter electric wire holder divided body 12 is temporarily fixed to the holder assembly jig 100. The first lightening holes 27a are formed such that the opening shape viewed from one side in the mounting / removal direction Z is rectangular. When the holder outer peripheral surface 2c is viewed from one side in the mounting / removal direction Z, the first lightening holes 27a are provided two by two on each of imaginary lines Q1 and Q2 along the insertion direction X. When the holder outer peripheral surface 2c is viewed from one side in the mounting / removal direction Z, the first lightening holes 27a are provided two by two on each of imaginary lines P3 and P4 along the width direction Y. In this manner, the first lightening hole 27a is disposed at the intersection of the imaginary lines Q1, Q2, P3, and P4.

[0026] When the holder outer surface 2c is viewed from one side in the attachment / detachment direction Z, the first lightening holes 27a are located on imaginary lines Q1, Q2, respectively, on one side and the other side in the insertion direction X, sandwiched between the partition wall 41 located on imaginary line P2.

[0027] The locking grooves 28 are formed corresponding to the locking ribs 24, and are recessed inward from the insertion hole opening surface 2b in the insertion direction X of the main body 20. Two locking grooves 28 are provided for each large diameter electric wire holder segment 12. When the main body 20 is viewed from the attachment / detachment direction Z, the locking grooves 28, 28 are located on both sides in the insertion direction X, sandwiching the large diameter positioning rib 22 therebetween. The locking grooves 28 are open on both sides in the attachment / detachment direction Z of the main body 20, and are formed to have a rectangular cross-sectional shape when viewed from the insertion direction X.

[0028] The locking protrusion 29 is formed to correspond to the locking projection 24a of the locking rib 24, and when one large diameter electric wire holder segment 12 is assembled face to face with the other large diameter electric wire holder segment 12, it is locked to the locking protrusion 29 provided in the locking groove 28 of the other large diameter electric wire holder segment 12.

[0029] As shown in Figs. 5, 6, 7 and 8, the small diameter electric wire holder 3 is composed of a pair of small diameter electric wire holder segments 13, 13. The small diameter electric wire holder 3 is composed in a state in which the pair of small diameter electric wire holder segments 13, 13 are assembled to the small diameter electric wire WB to be assembled and faced in the attachment / detachment direction Z. The pair of small diameter electric wire holder segments 13, 13 have the same shape. The small diameter electric wire holder 3 in this embodiment differs from the large diameter electric wire holder 2 only in the width of the large diameter electric wire groove portion 21 in the width direction Y, the large diameter positioning rib 22, the large diameter positioning hole 23 and the position of the first lightening hole 27a in the lightening hole group 27. Other than these, the small diameter electric wire holder 3 is the same as the large diameter electric wire holder 2. The same components are denoted by the same reference numerals and their description will be omitted.

[0030] The small diameter electric wire holder divided body 13 has a main body 30, a small diameter electric wire groove 31, a small diameter positioning rib 32, a small diameter positioning hole 33, a locking rib 24, a locking piece 25, a locking protrusion 26, a group of lightening holes 37, a locking groove 28, and a locking protrusion 29. The small diameter electric wire holder divided body 13 is integrally molded with the main body 30, the small diameter electric wire groove 31, the small diameter positioning rib 32, the small diameter positioning hole 33, the locking rib 24, the locking piece 25, the locking protrusion 26, the group of lightening holes 37, the locking groove 28, and the locking protrusion 29 from an insulating resin material or the like.

[0031] The main body 30 constitutes a main member that holds the small diameter electric wire WB inserted through the small diameter electric wire insertion hole 3a in the small diameter electric wire holder 3. The main body 30 is formed so that its cross section when viewed from the insertion direction X is W-shaped.

[0032] The small diameter electric wire groove 31 is formed corresponding to the small diameter electric wire WB, and is a portion recessed from the electric wire side toward the divided body side in the attachment / detachment direction Z of the main body 30. For example, two small diameter electric wire grooves 31 are provided for one small diameter electric wire holder divided body 13. When the main body 30 is viewed from the attachment / detachment direction Z, one of the two small diameter electric wire grooves 31, 31 is located between the small diameter positioning rib 32 and the locking piece 25 facing each other in the width direction Y, and the other is located between the small diameter positioning hole 33 and the locking protrusion 26 facing each other in the width direction Y. The small diameter electric wire groove 31 is open at both ends in the insertion direction X of the main body 30, and has a U-shaped or semicircular cross-sectional shape viewed from the insertion direction X. When the small diameter electric wire holder segments 13 are assembled to a holder assembly jig 100 (described later), the small diameter electric wire WB is inserted into the small diameter electric wire groove 31 from the electric wire side toward the segment side in the attachment / detachment direction Z. The width in the width direction Y of the small diameter electric wire groove 31 is set corresponding to the outer diameter RB of the small diameter electric wire WB. When the small diameter electric wire holder segments 13, 13 are assembled facing each other, the small diameter electric wire grooves 31 face each other to form a small diameter electric wire insertion hole 3a through which the small diameter electric wire WB is inserted and held.

[0033] The small diameter positioning rib 32 is an example of a second positioning rib, and is arranged side by side with the small diameter electric wire groove 31 in the width direction Y, and is formed to protrude from the division surface 3d toward the electric wire side. Here, the division surface 3d is an opposing surface that faces in the attachment / detachment direction Z when one small diameter electric wire holder segment 13 is assembled with the other small diameter electric wire holder segment 13 facing each other. One small diameter positioning rib 32 is provided for one small diameter electric wire holder segment 13. The small diameter positioning rib 32 is formed so that its cross-sectional shape when viewed from the electric wire side in the attachment / detachment direction Z is rectangular. When viewed from the electric wire side in the attachment / detachment direction Z, the small diameter positioning rib 32 is located between the small diameter electric wire grooves 31, 31 and between the locking ribs 24, 24 arranged side by side in the insertion direction X. The small diameter positioning rib 32 is received in the small diameter positioning hole 33 of one small diameter electric wire holder segment 13 when the other small diameter electric wire holder segment 13 is assembled facing each other.

[0034] The small diameter positioning hole 33 is an example of a second positioning hole, and is a through hole that is arranged side by side with the small diameter positioning rib 32 in the width direction Y and penetrates from the division surface 3d toward the division body side. One small diameter positioning hole 33 is provided for each small diameter electric wire holder division body 13. The small diameter positioning hole 33 is formed so that the opening shape when viewed from the electric wire side in the attachment / detachment direction Z is rectangular. When viewed from the electric wire side in the attachment / detachment direction Z, the small diameter positioning hole 33 is located between the small diameter electric wire grooves 31, 31 and between the locking protrusions 29, 29 arranged side by side in the insertion direction X. The small diameter positioning hole 33 accommodates the small diameter positioning rib 32 of one small diameter electric wire holder division body 13 when the other small diameter electric wire holder division body 13 is assembled to face each other.

[0035] As shown in FIG. 7, the group of lightening holes 37 is composed of a plurality of recesses provided on the outer peripheral surface 3c of the small-diameter electric wire holder 3 as lightening holes. In this embodiment, the group of lightening holes 37 includes two second lightening holes 37a. The second lightening holes 37a accommodate the second protrusions 135 formed on the holder assembly jig 100 when the small-diameter electric wire holder divided body 13 is temporarily fixed to the holder assembly jig 100. The second lightening holes 37a are formed such that the opening shape viewed from one side in the mounting / removal direction Z is rectangular. When the holder outer peripheral surface 3c is viewed from one side in the mounting / removal direction Z, the second lightening holes 37a are provided on imaginary lines Q1 and Q2 along the insertion direction X, one each. When the holder outer peripheral surface 3c is viewed from one side in the mounting / removal direction Z, two second lightening holes 37a are provided on imaginary line P2 along the width direction Y. In this manner, the second lightening holes 37a are disposed at the intersections of the imaginary lines Q1 and P2, and the imaginary lines Q2 and P2.

[0036] When the holder outer peripheral surface 2c is viewed from one side in the mounting / removal direction Z, the second lightening hole 37a is located on each of the imaginary lines Q1 and Q2 between the partition walls 42 located on the imaginary lines P3 and P4. Each partition wall 42 is formed between the second lightening hole 37a and the lightening hole 37b.

[0037] As shown in Fig. 1, the holder housing 50 accommodates and holds or protects the electric wire holder 1 holding an electric wire W. The holder housing 50 is composed of housing members 51, 52 molded from an insulating resin material or the like. The holder housing 50 is configured in a state where the electric wire holder 1 is assembled to the electric wire W to be assembled and faces each other in the attachment / detachment direction Z. The housing members 51, 52 have approximately the same shape. The holder housing 50 accommodates either the large diameter electric wire holder 2 or the small diameter electric wire holder 3.

[0038] Next, the holder assembly jig 100 will be described. As shown in Figs. 10 to 14, the holder assembly jig 100 includes two types of holder assembly jigs, that is, a large diameter electric wire holder assembly jig 102 corresponding to the large diameter electric wire holder 2, and a small diameter electric wire holder assembly jig 103 corresponding to the small diameter electric wire holder 3. The large diameter electric wire holder assembly jig 102 and the small diameter electric wire holder assembly jig 103 are different from each other only in the positions of the first protrusions 125, 125 and the second protrusions 135, 135, and are the same in components other than the first protrusions 125, 125 and the second protrusions 135, 135. The same components are denoted by the same reference numerals and their description will be omitted. The large diameter electric wire holder assembly jig 102 and the small diameter electric wire holder assembly jig 103 will be described below.

[0039] The large diameter electric wire holder assembling jig 102 has a main body 130, a first restricting portion 131, a second restricting portion 132, and first protrusions 125, 125. The small diameter electric wire holder assembling jig 103 has a main body 130, a first restricting portion 131, a second restricting portion 132, and second protrusions 135, 135.

[0040] The main body 130 constitutes a main member that holds the large-diameter electric-wire holder division 12 or the small-diameter electric-wire holder division 13 in the holder assembling jig 100. The main body 130 is molded from, for example, an insulating resin material.

[0041] The first restricting portion 131 is a convex portion that protrudes from the holder receiving surface 130a of the main body 130 toward the electric wire side, which is one side of the attachment / detachment direction Z, and extends in the width direction Y. The first restricting portion 131 has a restricting surface 131a that forms a step with respect to the holder receiving surface 130a of the main body 130. As shown in Figs. 4 and 7, when the large diameter electric wire holder segment 12 or the small diameter electric wire holder segment 13 is temporarily assembled to the holder assembling jig 100, the restricting surface 131a of the first restricting portion 131 abuts against the insertion hole opening surface 2b to restrict movement of the segment in one side of the insertion direction X.

[0042] The second restricting portion 132 is a protrusion protruding from the holder receiving surface 130a of the main body 130 toward the electric wire side in the attachment / detachment direction Z. The second restricting portion 132 is formed in a cylindrical shape like the first protrusions 125, 125 and the second protrusions 135, 135. In a state in which the large diameter electric wire holder segment 12 or the small diameter electric wire holder segment 13 is temporarily assembled to the holder assembling jig 100, the outer circumferential surface of the second restricting portion 132 abuts against the insertion hole opening surface 2b to restrict the movement of the segment in the other insertion direction X.

[0043] The first protrusions 125, 125 are protrusions that protrude from the holder receiving surface 130a of the main body 130 toward the electric wire side in the attachment / detachment direction Z. The first protrusions 125, 125 are located between the first restricting portion 131 and the second restricting portion 132 along the insertion direction X. The first protrusions 125, 125 are disposed on the holder receiving surface 130a in a position corresponding to the position of the first lightening hole 27a of the large diameter electric wire holder segment 12. The first protrusions 125, 125 are disposed at the intersections of imaginary lines Q1, Q2 and imaginary line P3 shown in Figs. 4 and 7.

[0044] The first protrusions 125, 125 are accommodated in the first lightening holes 27a, 27a of the large diameter electric wire holder segment 12 in a state in which the large diameter electric wire holder segment 12 is temporarily assembled to the large diameter electric wire holder assembling jig 102. As a result, the large diameter electric wire holder segment 12 is temporarily fixed to the large diameter electric wire holder assembling jig 102 with the holder outer circumferential surface 2c abutting against the holder receiving surface 130a. On the other hand, the first protrusions 125, 125 are not accommodated in the second lightening holes 37a in a state in which the small diameter electric wire holder segment 13 is temporarily assembled to the large diameter electric wire holder assembling jig 102, and abut against the partition walls 42, 42 of the small diameter electric wire holder segment 13.

[0045] The second protrusions 135, 135 are protrusions that protrude from the holder receiving surface 130a of the main body 130 toward the electric wire side in the attachment / detachment direction Z. The second protrusions 135, 135 are located between the first restricting portion 131 and the second restricting portion 132 along the insertion direction X. The second protrusions 135, 135 are arranged on the holder receiving surface 130a in a position corresponding to the position of the second lightening hole 37a of the small-diameter electric-wire holder divided body 13. The second protrusions 135, 135 are arranged on the holder receiving surface 130a in a position corresponding to the position of the second lightening hole 37a of the small-diameter electric-wire holder divided body 13. The second protrusions 135, 135 are arranged at the intersections of the imaginary lines Q1, Q2 and the imaginary line P2 shown in FIG. 4 and FIG. 7.

[0046] The second protrusions 135, 135 are accommodated in the second lightening holes 37a, 37a of the small diameter electric wire holder segment 13 in a state in which the small diameter electric wire holder segment 13 is temporarily assembled to the small diameter electric wire holder assembling jig 103. As a result, the small diameter electric wire holder segment 13 is temporarily fixed to the small diameter electric wire holder assembling jig 103 with the holder outer circumferential surface 3c abutting against the holder receiving surface 130a. On the other hand, the second protrusions 135, 135 are not accommodated in the first lightening holes 27a, 27a in a state in which the large diameter electric wire holder segment 12 is temporarily assembled to the small diameter electric wire holder assembling jig 103, and abut against the partition walls 41, 41 of the large diameter electric wire holder segment 12.

[0047] Next, a method for manufacturing the wire harness WH configured as above will be described with reference to Fig. 1 to Fig. 14. In the following description, the description will be based on the flowchart in Fig. 15, and other figures will be referred to as appropriate. The method for manufacturing the wire harness WH described below may be performed manually by an operator using various devices, equipment, jigs, etc., or may be performed automatically by various manufacturing devices.

[0048] The manufacturing method of the wire harness WH of the present embodiment includes a selection step (step S1) and a manufacturing step (step S2). Here, the manufacturing method of the wire harness WH will be described as being performed manually by an operator.

[0049] First, in a selection step, the worker selects a segment from the large diameter electric wire holder segments 12, 12 and the small diameter electric wire holder segments 13, 13 according to the outer diameter of the electric wire W to be assembled. Here, the worker selects the large diameter electric wire holder segments 12, 12 when the object to be assembled is the large diameter electric wire WA, and selects the small diameter electric wire holder segments 13, 13 when the object to be assembled is the small diameter electric wire WB.

[0050] Next, in a manufacturing process, the worker pairs the segments selected in the selection process and assembles the pair of segments to the electric wire W to be assembled, thereby forming the electric wire holder 1 and manufacturing the wire harness WH. Here, in a temporary assembly process (step S2a), the worker temporarily fixes the segments to an assembly jig selected from the large diameter electric wire holder assembly jig 102 and the small diameter electric wire holder assembly jig 103 according to the outer diameter of the electric wire W to be assembled.

[0051] When the object to be assembled is a large diameter electric wire WA, the worker selects the large diameter electric wire holder assembly jig 102, and when the object to be assembled is a small diameter electric wire WB, the worker selects the small diameter electric wire holder assembly jig 103. Here, if the worker selects the small diameter electric wire holder assembly jig 103 even though the object to be assembled is a large diameter electric wire WA, the worker cannot temporarily assemble the large diameter electric wire holder divided body 12 to the small diameter electric wire holder assembly jig 103. That is, when a worker temporarily assembles the large diameter electric wire holder division body 12 to the small diameter electric wire holder assembly jig 103, as shown in Figures 13 and 14, the second protrusions 135, 135 cannot be accommodated in the first lightening holes 27a, 27a and come into contact (interfere) with the partition walls 41, 41 of the large diameter electric wire holder division body 12, preventing the large diameter electric wire holder division body 12 from being fixed to the small diameter electric wire holder assembly jig 103. This allows the worker to easily recognize that the large diameter electric wire holder division body 12 cannot be fixed to the small diameter electric wire holder assembly jig 103, and prevents incorrect assembly.

[0052] On the other hand, when a worker temporarily assembles the small diameter electric wire holder segment 13 to the large diameter electric wire holder assembly jig 102, the first protrusions 125, 125 cannot be accommodated in the second lightening holes 37a, 37a, and the small diameter electric wire holder segment 13 abuts (interferes with) the partition walls 42, 42, preventing the small diameter electric wire holder segment 13 from being fixed to the large diameter electric wire holder assembly jig 102. This allows the worker to easily recognize that the small diameter electric wire holder segment 13 cannot be fixed to the large diameter electric wire holder assembly jig 102, and prevents incorrect assembly.

[0053] The worker assembles the electric wire W to be assembled to one of the pair of electric wire holder segments temporarily assembled in the holder assembly jig 100, and then assembles the other electric wire holder segment by facing it to the one electric wire holder segment. When the worker assembles the small diameter electric wire holder segment 13 to the large diameter electric wire holder segment 12 temporarily fixed to the large diameter electric wire holder assembly jig 102, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other in the assembled state facing each other, as shown in Figs. 8 and 9. This allows the worker to easily recognize that he is about to assemble the small diameter electric wire holder segment 13 to the large diameter electric wire holder segment 12, and prevents erroneous assembly. On the other hand, when an operator assembles the large diameter electric wire holder segment 12 to the small diameter electric wire holder segment 13 temporarily fixed to the small diameter electric wire holder assembly jig 103, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other when assembled facing each other as shown in Figures 8 and 9. This allows the operator to easily recognize that he or she is about to assemble the large diameter electric wire holder segment 12 to the small diameter electric wire holder segment 13, and prevents incorrect assembly.

[0054] As described above, in the manufacturing method of the wire harness according to this embodiment, when the large diameter electric wire holder segment 12 and the small diameter electric wire holder segment 13 are assembled facing each other, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other.

[0055] In the manufacturing method for the wire harness, due to the above configuration, when one wire holder segment is assembled to the other wire holder segment, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other, making it difficult to accommodate them in the positioning holes. As a result, in the manufacturing method for the wire harness, in the assembly work of the wire holder 1 to the electric wire W, the assembly of wire holder segments having different assembly targets can be prevented, and erroneous assembly by a worker can be prevented.

[0056] In addition, in the manufacturing method of the wire harness according to the present embodiment, when the large diameter electric wire holder segment 12 is temporarily fixed to the small diameter electric wire holder assembling jig 103, the second protrusions 135, 135 interfere with the large diameter electric wire holder segment 12, preventing the fixing. In addition, in the manufacturing method of the wire harness, when the small diameter electric wire holder segment 13 is temporarily fixed to the large diameter electric wire holder assembling jig 102, the first protrusions 125, 125 interfere with the small diameter electric wire holder segment 13, preventing the fixing.

[0057] In the manufacturing method of the wire harness, due to the above-mentioned configuration, a worker can easily recognize that the large diameter electric wire holder segment 12 cannot be fixed to the small diameter electric wire holder assembly jig 103 and that the small diameter electric wire holder segment cannot be fixed to the large diameter electric wire holder assembly jig 102, and therefore incorrect assembly can be prevented.

[0058] In the electric wire holder 1 according to the present embodiment, when a pair of electric wire holder segments are assembled facing each other, an electric wire insertion hole is formed, and a positioning rib formed on one of the pair is accommodated in a positioning hole formed on the other of the pair. When these electric wire holder segments are assembled facing each other with a different diameter electric wire holder segment constituting a different diameter electric wire holder that holds a different diameter electric wire having an outer diameter different from that of the electric wire W, the positioning rib and the different diameter electric wire holder segment interfere with each other. That is, in the electric wire holder 1, when the large diameter electric wire holder segment 12 and the small diameter electric wire holder segment 13 are assembled facing each other, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other. Here, in the large diameter electric wire holder 2, the small diameter electric wire WB corresponds to the "different diameter electric wire", the small diameter electric wire holder 3 corresponds to the "different diameter electric wire holder", and the small diameter electric wire holder segment 13 corresponds to the "different diameter electric wire holder segment". On the other hand, in the small diameter electric wire holder 3, the large diameter electric wire WA corresponds to the "different diameter electric wire", the large diameter electric wire holder 2 corresponds to the "different diameter electric wire holder", and the large diameter electric wire holder segment 12 corresponds to the "different diameter electric wire holder segment".

[0059] With the above-described configuration, when one wire holder segment is assembled to the other wire holder segment, the large diameter positioning rib 22 and the small diameter positioning rib 32 interfere with each other, making it difficult to accommodate them in the positioning holes. This makes it possible to prevent wire holder segments having different assembly targets from being assembled together during the assembly work of the wire holder 1 to the electric wire W, thereby preventing erroneous assembly by a worker.

[0060] In the above embodiment, the electric wire holder 1 is configured to be able to hold two electric wires W, but is not limited thereto, and may be configured to be able to hold three or more electric wires W.

[0061] In addition, in the above embodiment, the electric wire holder 1 is accommodated in a holder housing 50 having a simple structure, but instead of the holder housing 50, it may be a so-called rear holder that holds the terminal of the electric wire W, or it may be a dedicated member other than these.

[0062] In the above embodiment, the first protrusions 125, 125 and the second protrusions 135, 135 have been described as having the same outer diameter, but they may have different outer diameters. Also, two each of the first protrusions 125, 125 and the second protrusions 135, 135 are provided, but one each may be provided. [Explanation of symbols]

[0063] 1 Wire holder 2 Large diameter wire holder 2a Large diameter wire insertion hole 3 Small diameter wire holder 3a Small diameter wire insertion hole 12 Large diameter electric wire holder division 13 Small diameter electric wire holder division body 21 Large diameter electric wire groove 22 Large diameter positioning rib (first positioning rib) 23 Large diameter positioning hole (first positioning hole) 27a First Hole 41 Partition Wall 31 Small diameter electric wire groove 32 Small diameter positioning rib (second positioning rib) 33 Small diameter positioning hole (second positioning hole) 37a Second Hole 42 Partition Wall 100 Holder assembly jig 102 Large diameter electric wire holder assembly jig 103 Small diameter electric wire holder assembly jig 125 1st protrusion 131 First Regulatory Department 132 Second Regulatory Department 135 Second protrusion RA,RB Outer diameter WA Large diameter wire WB small diameter wire WH Wire harness

Claims

1. a selection step of selecting a pair of divided bodies constituting an electric wire holder for holding an electric wire from among a large diameter electric wire holder divided body constituting a large diameter electric wire holder for holding a large diameter electric wire, which is the electric wire having a relatively large outer diameter, and a small diameter electric wire holder divided body constituting a small diameter electric wire holder for holding a small diameter electric wire, which is the electric wire having a relatively small outer diameter, according to an outer diameter of the electric wire to be assembled; a fabrication step of forming a pair of the divided bodies selected in the selection step, and assembling the pair of divided bodies to the electric wire to be assembled, thereby forming the electric wire holder and fabricating a wire harness, The large diameter electric wire holder division body is a large diameter electric wire groove portion formed corresponding to an outer diameter of the large diameter electric wire, a first positioning rib provided alongside the large diameter electric wire groove portion, and a first positioning hole provided alongside the first positioning rib, wherein when a pair is assembled facing each other, the large diameter electric wire groove portions face each other to form a large diameter electric wire insertion hole through which the large diameter electric wire is inserted and held, and the first positioning rib formed on one of the pair is accommodated in the first positioning hole formed on the other of the pair, The small diameter electric wire holder division body is a small diameter electric wire groove portion formed corresponding to an outer diameter of the small diameter electric wire, a second positioning rib provided alongside the small diameter electric wire groove portion, and a second positioning hole provided alongside the second positioning rib, wherein when a pair is assembled facing each other, the small diameter electric wire groove portions face each other to form a small diameter electric wire insertion hole through which the small diameter electric wire is inserted and held, and the second positioning rib formed on one of the pair is received in the second positioning hole formed on the other of the pair, When the large-diameter electric-wire holder divided body and the small-diameter electric-wire holder divided body are assembled facing each other, the first positioning rib and the second positioning rib interfere with each other. A method for manufacturing a wire harness comprising the steps of:

2. The manufacturing process includes: a temporary assembly step of temporarily fixing the divided body to an assembly jig selected from a large diameter electric wire holder assembly jig corresponding to the large diameter electric wire holder and a small diameter electric wire holder assembly jig corresponding to the small diameter electric wire holder according to an outer diameter of the electric wire to be assembled, The large diameter electric wire holder division body is The large-diameter electric wire holder assembly jig further includes a first lightening hole for accommodating a first protrusion formed in the large-diameter electric wire holder assembly jig, The small diameter electric wire holder division body is The small-diameter electric wire holder assembly jig further includes a second lightening hole for receiving a second protrusion formed in the small-diameter electric wire holder assembly jig, In the temporary assembly process, When the large-diameter electric-wire holder divided body is temporarily fixed to the small-diameter electric-wire holder assembling jig, the second protrusion interferes with the large-diameter electric-wire holder divided body, preventing the fixing, When the small diameter electric wire holder divided body is temporarily fixed to the large diameter electric wire holder assembling jig, the first protrusion interferes with the small diameter electric wire holder divided body, thereby preventing the fixing. A method for manufacturing the wire harness according to claim 1.

3. The connector includes a pair of divided bodies each having a wire groove formed in accordance with an outer diameter of the wire, a positioning rib arranged next to the wire groove, and a positioning hole arranged next to the positioning rib, The pair of divided bodies are When the pair of wires are assembled facing each other, the wire grooves face each other to form wire insertion holes into which the wires are inserted and held, and the positioning rib formed on one of the pair is received in the positioning hole formed on the other of the pair, The divided body is When the positioning rib and the divided body of the different diameter electric wire holder that holds a different diameter electric wire having an outer diameter different from that of the electric wire are combined facing each other, the positioning rib and the divided body of the different diameter electric wire holder interfere with each other.

1. A wire holder comprising:

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