JP2013145642A - Wiring jig for branching, wire harness manufactured using the same and assembly drawing board of wire harness on which the same is set up - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring jig for branching which can perform tape winding of a branch part while holding the branch part of a wire harness.SOLUTION: A pair of wire holding parts 16, 16 is provided on a support member 14 having a pair of split leg parts 18, 18 so as to face each other with a gap in the same direction as an opposing direction of the pair of split leg parts 18, 18. Lower support parts 28 which hold wires from below and lateral support parts 30 which protrude from both side end parts of the lower support parts 28 and support the wires from lateral sides are provided on the pair of wire holding parts 16, 16. Further, a soft resin cover member 12 which covers the gap of the pair of wire holding parts 16, 16 and supports the wires from below by being detachably assembled to the lateral support parts 30 and placed on the lower support parts 28 is provided on the support member 14.

Description

  The present invention is a branch wiring jig used for holding an electric wire installed upright on an assembly drawing board of a wire harness and routed to a branch portion of the wire harness, and manufactured using the same. The present invention relates to an assembly drawing board of a wire harness in which a wiring harness and a branch wiring jig are erected.

  Conventionally, a predetermined wiring path is shown on an assembly drawing board used for manufacturing a wire harness for an automobile, and a wiring jig for holding an electric wire on the assembly drawing board at various points in the wiring path Is erected. And as illustrated in FIG. 10 and FIG. 11 of JP-A-7-105758 (Patent Document 1), on such an assembly drawing board, a large number of electric wires are used as wiring jigs along the wiring path. After holding and routing, the wire harness of the desired shape can be obtained by wrapping vinyl tape around the outer periphery of the routed wire bundle and attaching exterior parts such as clamps and protectors as necessary. It has come to be manufactured.

  By the way, as also shown in FIG. 11 of Patent Document 1, a conventional wiring jig is generally provided at a protruding support portion of a bar-shaped support member that extends upward and protrudes upward from an assembly drawing board. It is comprised from the substantially U-shaped electric wire holding part opened upwards. Therefore, in the so-called tape winding operation in which the tape is wound around the outer periphery of the electric wire bundle held and wired by the wiring jig, the electric wire bundle supported by the wiring jig is lifted upward and the electric wire is A troublesome work is required in which the tape is wound once after being detached from the holding portion, and after the tape winding is completed, the tape is again returned to the electric wire holding portion. Such an operation causes a heavy load on the wire bundle made up of a large number of wires, which causes an excessive burden on the operator and causes the workability of the tape winding to deteriorate.

  Therefore, in FIGS. 4 and 7 of Patent Document 1, the support member of the wiring jig is extendable so that the height of the electric wire holding portion can be adjusted, and the support member can be rotated around the base end portion. There has been proposed a structure that can alternatively realize the standing state and the sideways state of the wiring jig. According to this, the supporting member of the wiring jig is shrunk and the electric wire holding part is retracted downward, so that the wiring can be easily performed without requiring the operation of lifting the electric wire bundle above the wiring jig. The jig can be detached from the wire bundle. Furthermore, by rotating the wiring jig around the base end portion of the support member so as to be in a sideways state, it is possible to secure a sufficient space necessary for tape winding below the wire bundle. Workability is further advantageously improved. Further, as a further improvement, Japanese Patent Application Laid-Open No. 2004-79412 (Patent Document 2) includes an urging unit that holds the height position of the wire holding portion of the wiring jig at a protruding position that holds the wire bundle. In addition, when a pressing force of a predetermined value or more is applied to the electric wire holding part, a biasing force is released and the electric wire holding part is automatically retracted to a retracted position spaced downward from the electric wire bundle. A proposed structure has been proposed. According to this, the operator simply removes the electric wire holding part from the electric wire bundle by simply applying a pushing force from the upper side to the lower side of the electric wire bundle held by the wiring jig, and easily retreats to the retracted position. Therefore, the workability can be further improved.

  However, with such an improved wiring jig, the workability of tape winding at the straight part of the wire harness where the wire bundle extends linearly is improved, but the tape winding at the branching part where the wire harness branches. The work still contained problems to be improved. Specifically, the example shown in FIG. 6 of Patent Document 2 will be described with reference to FIG. As shown in FIG. 8 (a), the straight portion of the wire harness is composed of a number of electric wires W1 extending and supported between the wiring jigs 2a, 2a, 2b that are erected apart from each other. Has been. For this reason, when the tape is wound, the linear shape is maintained even if the wiring jig 2a that obstructs the work is retracted downward, and the action of winding the tape around the outer periphery of the straight portion is not difficult. . However, the tape winding operation at the branch portion of the wire harness is not as easy as the straight portion. That is, the branch portion of the wire harness is routed in a branch shape using the branch wiring jig 2b. The branch wiring jig 2b has a substantially U-shaped pair of wire holding portions that open upward, and is opposed to each other by a metal rod on the bottom side. The structure is connected to the protruding end. And the some electric wire W1 wired so that it may extend linearly across a pair of electric wire holding | maintenance parts, and many branch electric wires W2 led out from between a pair of electric wire holding | maintenance parts are cross-shaped. A branch portion is configured to intersect in a T-shape. As shown in an enlarged view of FIG. 8B, the tape winding of the branch portion of such a wire harness is applied between the corners AA ′ and BB ′ at the intersection of the wires W1 and W2. They are bound by winding the tape 3 in a shape.

  As described above, the wiring jig having the conventional structure is one in which the wiring jig is detached from the wire bundle that is wired during tape winding. Therefore, the tape winding operation of the branching portion shown in FIG. 8B is performed at any location of the electric wires W1 and W2 extending in all directions with the operator removing the branching portion of the wire bundle from the branching wiring jig 2b. It is necessary to carry out while pressing with fingers and the like, which is very difficult and time-consuming as compared with the tape winding operation of the straight portion of the wire harness. Moreover, even if the electric wires W1 and W2 can be routed in a branched shape with a predetermined dimensional accuracy by the branching wiring jig, the tape 3 is hanged in a state where the electric wire bundle is detached from the branching wiring jig. In the work of winding the wire bundle, it is difficult to avoid the deformation and displacement of the branch portion of the wire bundle, and it is difficult to maintain the dimensional accuracy of the branch portion.

JP-A-7-105758 JP 2004-79412 A

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that it is possible to perform tape winding of the branch part while holding the bundle of electric wires constituting the branch part of the wire harness. It is to provide a branching jig having a novel structure. The present invention also provides a wire harness manufactured using such a branching wiring jig. Furthermore, the present invention also provides an assembly drawing board of a wire harness in which such a branching wiring jig is erected.

  A first aspect of the present invention is a branch wiring jig used for holding an electric wire installed upright on an assembly drawing board of a wire harness and routed in a branch portion of the wire harness, A support member attached so as to protrude on the assembly drawing plate; and a pair of electric wire holding portions which are supported by the support member so as to be spaced apart from each other above the assembly drawing plate and face each other with a gap therebetween. The pair of electric wire holding portions respectively extend in a direction orthogonal to the opposing direction to support the electric wire from below, and project upward from both side end portions of the lower supporting portion to connect the electric wire. While having two side support parts supported from the side, the support member supports the pair of wire holding parts, respectively, and is spaced from each other in the facing direction of the pair of wire holding parts. A pair of opposed The pair of electric wire holding portions has a split leg portion, and is extended between the four side support portions arranged to face each other at a distance from each other. A cover member made of a soft resin that covers the opposed gap and supports the electric wire from below is provided by being removably assembled to the lower support portion. Yes.

  According to the branching wiring jig according to the present invention, the facing gap between the pair of electric wire holding portions is covered with the cover member made of a soft resin spanned between the four side support portions. Therefore, for example, when the wires constituting the trunk of the wire harness are supported so as to extend between the lower support portions of the pair of wire holding portions from below, the pair of wires is extended. The branch electric wire branched from the main line from between the side support parts separated in the opposing direction of the holding part can be supported from below by the cover member. Thereby, it is possible to stably carry out the wiring of the branch portion.

  Moreover, a pair of division | segmentation leg part which supports each electric wire holding part is opposingly arranged by the mutually opposing direction in the opposing direction of a pair of electric wire holding part. Therefore, a space for allowing the tape to be hidden under the wire bundle can be secured below the wire holding portion. Moreover, the cover member can be detached from the side support portion. For this reason, it is possible to bind and wind the tape in a staking shape without removing the branch portion of the bundle of wires wired in the branching method wiring jig of the present invention from the branching wiring jig. .

  That is, for the branch part of the wire bundle held in a branch shape such as a cross with a branching wiring jig, tape is applied between the corners from above, and then the tape is submerged in the space. Tape can be bridged between corners from below. In addition, the tape that has been dipped in the space and sent to the upper part of the branch portion of the bundle of electric wires can be passed again between the corners, and the space can be dipped and wound downward. By repeating this, it is possible to perform a tape-like winding on the branch portion of the wire bundle while the branch portion of the wire bundle is held by the jig.

  In this way, since the tape can be wound around the branch portion while holding the branch portion of the wire bundle on the jig, the operator does not need to hold the branch portion, thereby The workability of tape winding is improved. In addition, since the tape can be wound while the electric wire bundle is held on the jig, the branch portions can be tape-bound while sufficiently maintaining the predetermined dimensional accuracy on the jig. Thereby, a dramatic improvement in the dimensional accuracy of the wire harness is reliably achieved by an easy operation. In addition, since the tape can be wound around the branch part while holding the branch part of the wire bundle in the jig, the strength of the tape winding changes depending on the direction by the operator's dominant hand, etc. It is possible to suppress variation by the person. As a result, it is possible to avoid as much as possible the twist of the wire harness due to the shift of the center of gravity.

  In addition, the cover member is bound and fixed together with the electric wire on the outer peripheral surface of the electric wire by tape winding of the branch portion of the electric wire bundle. Since the cover member is made of soft resin, the cover member is attached to the electric wire. Bend along. Therefore, it is possible to avoid applying an unnecessary load to the electric wire or damaging the electric wire by binding and fixing the cover member to the electric wire bundle. Further, since the cover member bends along the electric wire, it is possible to advantageously prevent a reduction in tape binding force due to the intervention of the cover member.

  Further, since the cover member is detachably assembled to the side support portion, the tape winding portion (branching portion) of the electric wire bundle in which the cover member is bound and fixed by the tape is lifted upward after the tape winding operation is completed. Or by retracting the jig downward, the jig can be easily detached from the wire bundle. As a result, the workability of the tape winding work and the wire harness manufacturing work is improved.

  According to a second aspect of the present invention, in the one described in the first aspect, an opposing direction separation distance between the pair of split leg portions is equal to or greater than an opposing direction separation distance between the pair of electric wire holding portions. It is.

  According to this aspect, a reliable tape winding work space can be secured below the branching portion.

  A third aspect of the present invention is the one described in the first or second aspect, wherein the cover member is constituted by a thin sheet extending across the side support parts, and the outer peripheral edge of the thin sheet An insertion hole through which the side support portion is inserted is provided.

  According to this aspect, the attachment / detachment of the cover member to the side support portion is facilitated. Moreover, since the cover member is comprised with the thin sheet | seat, even if it tapes together with an electric wire, the branch part of a wire harness can avoid the enlargement.

  According to a fourth aspect of the present invention, in the one described in the first or second aspect, the cover member includes a cross-shaped rod portion and four ring portions formed at a protruding tip portion of the rod portion. The four ring portions are inserted through the four side support portions, respectively.

  According to this aspect, since the cover member is configured by the cross-shaped rod portion and the ring portion inserted into the side support portion, the member strength can be advantageously increased as compared with the sheet-like cover member. . In addition, since the surface area of the entire cover member can be reduced as compared with the sheet-like cover member, it is possible to reduce as much as possible the region in which the adhesion of the tape and the electric wire is hindered by the cover member when winding the tape. It is possible to more advantageously avoid the reduction of the binding force due to the interposition of. Thereby, the electric wire of a branch part can be narrowed toward the center side more by tape winding, and strengthening of binding power can also be aimed at.

  According to a fifth aspect of the present invention, in the above-described fourth aspect, the separation distance from the center of the cross-shaped rod portion to each of the ring portions is at least one ring portion with another ring portion. It is something that is different.

  According to this aspect, by arbitrarily changing the separation distance from the center to the ring portion, the shape (center, branch position, etc.) of the branch portion when the branch portion of the wire harness is tape-bound is arbitrarily set. Accordingly, the degree of freedom in designing the wire harness can be improved.

  According to a sixth aspect of the present invention, in the wire harness including the branch portion of the bundle of wires, the branch portion of the electric wire is routed using the branch wiring jig described in the first to fifth embodiments. And the branch member is fixed to the electric wire bundle with a tape that is overlapped with the electric wire bundle and is wound around in a hooked manner. It is what.

  In the wire harness having the structure according to the present embodiment, the wire bundle constituting the branch portion is taped in a staking shape while being held by the branch wiring jig in the manufacture thereof, and the cover member is The wire is bound and fixed together with the electric wire on the outer peripheral surface of the electric wire. Thereby, a dramatic improvement in the dimensional accuracy of the wire harness is reliably achieved by an easy operation.

  A seventh aspect of the present invention is an assembly drawing board of a wire harness, characterized in that the branching wiring jig described in the first to fifth aspects is erected. . According to such an assembly drawing board, it is possible to enjoy the advantages of the branching wiring jig of the present invention and to advantageously improve the workability and dimensional accuracy of the tape winding at the branching portion. Can be provided.

  According to the branching wiring jig of the present invention, it is possible to perform tape winding of the branch portion while holding the electric wire bundle constituting the branch portion of the wire harness. As a result, the workability of tape winding at the branch portion of the wire bundle is advantageously enhanced. In addition, a dramatic improvement in the dimensional accuracy of the wire harness is reliably achieved by an easy operation.

  In the wire harness of the present invention, substantially the same operation and effect as the operation and effect exhibited in the branching wiring jig can be enjoyed effectively.

The perspective view which shows one Embodiment of the wiring jig for branch which has a structure according to this invention. The perspective view which shows the jig | tool main body which the wiring jig for branch shown by FIG. 1 has. The perspective view of the cover member which the wiring jig for a branch shown by FIG. 1 has. Explanatory drawing which shows an example of the process of manufacturing a wire harness using the branch wiring jig shown by FIG. It is explanatory drawing which shows the process implemented following the process shown by FIG. 4, Comprising: The figure which shows the state which taped the branch part. The figure corresponding to FIG. 2 which shows the jig | tool main body in another embodiment of the wiring jig for branch provided with the structure according to this invention. The figure corresponding to FIG. 3 which shows the cover member in another embodiment of the wiring jig for branch provided with the structure according to this invention. Explanatory drawing of a prior art.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 shows an embodiment of a branching wiring jig having a structure according to the present invention in a perspective view. As is apparent from FIG. 1, the branching wiring jig 10 according to the present embodiment includes a jig body 11 and a cover member 12 that is detachably assembled to the jig body 11. .

  More specifically, as shown in FIG. 2, the jig body 11 includes a support member 14 and a pair of electric wires that are positioned on the upper end side of the support member 14 in FIG. 2 and supported by the support member 14. And holding portions 16 and 16. In the following description, the wire holding part 16 side of the jig body 11 is referred to as the upper side, and the support member 14 side of the jig body 11 is referred to as the lower side.

  The support member 14 of the jig body 11 is made of a metal round bar material having a substantially U shape as a whole. The material of the support member 14 is not limited in any way, and any material may be used as long as it has rigidity capable of supporting a large number of electric wires (32) when the wire harness (17) described later is manufactured. Accordingly, a resin material or the like can also be used as a material for forming the support member 14.

  Such a support member 14 has two split legs 18, 18 and a base leg 20. The two divided leg portions 18 and 18 are arranged so as to face each other with a gap therebetween (separate) and extend in parallel in the vertical direction. And the bending part 22 is provided in the intermediate part of the length direction of each division | segmentation leg part 18, The lower side part from this bending part 22 has extended straightly to the up-down direction, On the other hand, a bending part Upper portions than 22 extend incliningly so as to approach each other as they go upward. Accordingly, the separation distance L2 between the lower portions of the two divided legs 18 and 18 from the bent portion 22 is the minimum value of the distance between the upper portions of the bent portion 22 (two The separation distance between the upper ends of the divided legs 18 and 18): larger than the L2 by a predetermined dimension. Further, the distance L1 between the lower portions of the bent portion 22 and the length of each divided leg portion 18 are larger than the outer diameter of the roll of the binding tape used for the tape winding operation described later. The dimensions are sufficiently large.

  The base leg portion 20 is made of a round bar extending straight in the horizontal direction, and integrally connects the lower ends of the two divided leg portions 18 and 18. That is, the length of the base leg portion 20 is the same as the distance L1 between the lower portions of the two divided leg portions 18 and 18 below the bent portion 22. Then, a male screw portion 24 is integrally protruded downward at an intermediate portion in the length direction of the base leg portion 20. As described above, since the male screw portion 24 is provided on the base leg portion 20, the support member 14 is attached to the assembly drawing board 26 by the male screw portion 24 when the wire harness 17 described later is manufactured. (See FIG. 4).

  On the other hand, each electric wire holding part 16 has a lower support part 28 and two side support parts 30 and 30. The lower support portion 28 supports a large number of electric wires 32 routed on the assembly drawing board 26 from below when the wire harness 17 described later is manufactured (see FIG. 4), and is narrow and long. It is composed of a rectangular metal plate. An attachment hole 34 is formed in the middle portion in the longitudinal direction of the lower support portion 28.

  The two side support portions 30 and 30 support a number of electric wires 32 routed on the assembly drawing board 26 from the side when the wire harness 17 described later is manufactured (see FIG. 4). It is made of metal and has a long, round bar-like pin. The two side support portions 30 and 30 are integrally provided so as to protrude upward at a predetermined height with respect to both end portions in the length direction of the upper surface of the lower support portion 28. Note that the lower support portion 28 and the two side support portions 30, 30 can also be formed using a resin material having sufficient rigidity other than metal, like the support member 14.

  The pair of electric wire holding portions 16, 16 having such a structure is located above the two divided leg portions 18, 18 of the support member 14 in the opposing direction (separation direction) of the two divided leg portions 18, 18. The gap 31 is formed so as to be separated from each other. In addition, the lower support portion 28 of each electric wire holding portion 16 has the length direction aligned with such a perpendicular direction so as to extend in a direction orthogonal to the opposing direction of the two divided leg portions 18 and 18 and the vertical direction. Is located. Further, the two side support portions 30 and 30 of one wire holding portion 16 of the pair of wire holding portions 16 and 16 and the two side support portions 30 and 30 of the other wire holding portion 16 correspond to each other. Are positioned so as to be opposed to each other in the opposing direction of the two divided legs 18 and 18. That is, the four side support portions 30, 30, 30, and 30 are arranged so as to be positioned at four vertices of a rectangle or a square, respectively.

  Then, the upper ends of the two divided leg portions 18 and 18 are inserted into the mounting holes 34 provided in the lower support portions 28 and 28 of the pair of electric wire holding portions 16 and 16, respectively. 28 is fixed to each split leg 18. Thereby, a pair of electric wire holding | maintenance parts 16 and 16 are fixedly supported by the support member 14 in the state arrange | positioned facing each other across the clearance gap 31. FIG.

  Here, the pair of electric wire holding portions 16 and 16 are spaced apart from each other by a distance below the bent portions 22 of the two divided leg portions 18 and 18 (opposite direction separation distance): a separation distance smaller than L1 ( Opposite direction separation distance): fixed to the upper ends of the two split legs 18, 18 having L2. Therefore, a separation distance (opposite direction separation distance) of the pair of electric wire holding portions 16 and 16: L3 is a separation distance between the lower portions of the bent portions 22 of the two divided leg portions 18 and 18 (opposite direction separation distance). ): It is made smaller than L1.

  On the other hand, as shown in FIG. 3, the cover member 12 is made of a soft resin and a thin sheet material or film material. Although the kind of soft resin which forms this cover member 12 is not specifically limited, such soft resin is comparable to the covering film of many electric wires (32) which comprise a wire harness (17). Alternatively, it is desirable to have a lower hardness. Examples of such soft resins include polyvinyl chloride, polyvinylidene chloride, polypropylene, polyamide, polyethylene, fluororesin, and polyester resin.

  The cover member 12 has a cross shape as a whole, and has four extending portions 36, 36, 36, 36 that extend radially from the center to the four sides. Each of the four extending portions 36, 36, 36, 36 is formed of a thin flat plate having a relatively wide and substantially rectangular shape. Then, one insertion hole 38 is provided in each of the four distal end portions of the extending portions 36 in the length direction (extending direction), that is, the outer peripheral edge portion of the cover member 12. .

  Each of these insertion holes 38 has a circular shape, and has an inner diameter through which the pin-shaped side support portions 30 provided in the pair of electric wire holding portions 16 and 16 can be inserted. Further, such four insertion holes 38, 38, 38, 38 are distances between the center portions of the insertion holes 38, 38 provided in the extending portions 36, 36 adjacent to each other in the circumferential direction of the cover member 12. : L4 is the same as the distance L5 between the center portions of the side support portions 30 and 30 adjacent to each other in the opposing direction of the two split legs 18 and 18 and the length direction (extending direction) of the lower support portion 28. (See FIGS. 1 and 2).

  As shown in FIG. 1, in the branching wiring jig 10 of the present embodiment, the four extending portions 36, 36, 36, 36 of the cover member 12 having the above structure are a pair of electric wires. The holding parts 16 and 16 are arranged so as to be spanned between the two lower support parts 28 and 28 so as to spread over the four side support parts 30, 30, 30 and 30. Under such an arrangement state, the distal end side portions of the respective extension portions 36 are placed on both end portions in the length direction of the respective lower support portions 28, and are inserted at the distal end portions of the respective extension portions 36. The side support portions 30 of the pair of wire support portions 16 and 16 are inserted into the holes 38, respectively.

  Thereby, the cover member 12 is in a state where the four extending portions 36, 36, 36, 36 are extended between the four side support portions 30, 30, 30, 30 of the pair of electric wire holding portions 16, 16. It is assembled | attached so that it can detach | leave with respect to the four side support parts 30,30,30,30. Then, the cover member 12 is supported by the pair of electric wire holding portions 16 and 16 (support member 14) while covering the gap 31 between the pair of electric wire holding portions 16 and 16, and the branch wiring arrangement is thereby performed. The tool 10 is configured as an assembly of the support member 14 and the cover member 12. Accordingly, the cover member 12 can support a large number of electric wires 32 arranged on the assembly drawing board 26 from below when the wire harness 17 described later is manufactured.

  By the way, when manufacturing the wire harness including the branch portion of the wire bundle using the branching wiring jig 10 having the above-described structure, the operation is advanced according to the following procedure.

  That is, first, as shown in FIG. 4, the male screw portion 24 provided on the base leg portion 20 of the support member 14 is replaced with the female screw provided on the assembly drawing plate 26 for manufacturing the wire harness (17). The branch wiring jig 10 is erected on the assembly drawing board 26 by screwing into the holes 40 and attaching the support member 14 so as to protrude on the assembly drawing board 26. As a result, the pair of electric wire holding portions 16 and 16 are spaced apart above the assembly drawing plate 26 and supported by the support member 14. Although illustration is omitted, according to the wiring form of the desired wire harness 17, the branch wiring jig 10 is erected at an appropriate position of the assembly drawing board 26 to provide the assembly drawing board 26 of the wire harness. .

  Next, a large number of electric wires 32 are bundled and routed along a wiring path (not shown) shown on the assembly drawing board 26, and a branch portion 42 of the bundle of the large number of electric wires 32 is connected to a branching wiring jig. 10 by two lower support portions 28 and 28 (only one is shown in FIG. 4) of the pair of electric wire holding portions 16 and 16 (only one is shown in FIG. 4) and the cover member 12 from below. Hold (support).

  At this time, the trunk line 44 composed of a large number of electric wires 32 extending straight at the branching portion 42 is routed so as to extend between the two lower support portions 28 and 28 of the pair of electric wire holding portions 16 and 16. Such a trunk line 44 is supported by the two lower support portions 28 and 28 and the cover member 12 placed thereon. Further, in the branch portion 42, branch wires 46 and 46 formed of a plurality of wires 32 bent from one side and the other side in a direction orthogonal to the extending direction of the main line 44 and branched from the main line 44, respectively, While extending from the side support portions 30, 30 facing each other with a gap in the extending direction of the trunk line 44, the main line 44 is supported by the cover member 12. Accordingly, the trunk line 44, the branch portion 42, and the branch electric wires 46.46 can be easily and stably routed.

  After that, as shown in FIG. 5, the branch portion 42 and the cover member 12 are put together, and the binding tape 48 is wound around the periphery of the cover portion 12 to perform a tape winding operation on the branch portion 42. Thereby, the branch portion 42 is bound and fixed by the binding tape 48 together with the cover member 12 in a state of having a cross-like branch shape. Then, if necessary, exterior parts such as clamps and protectors are attached to the electric wires 32 constituting the main line 44 and the branched electric wires 46 and 46 to obtain the intended wire harness 17.

  At this time, a gap 31 is provided between the pair of electric wire holding portions 16 and 16 that support the cover member 12, and the two divided leg portions 18 and 18 to which the pair of electric wire holding portions 16 and 16 are attached, It arrange | positions at intervals larger than such the clearance gap 31 (refer FIG. 2). Therefore, the branch portion 42 is not lifted from the branch wiring jig 10, and the cover member 12 that supports the branch portion 42 is not removed from the support member 14 together with the branch portion 42, and the operator holds the branch portion 42. Without doing so, while the branching portion 42 is supported by the two lower support portions 28 and 28 and the cover member 12, the binding tape 48 is hidden in a large space between the two divided leg portions 18 and 18, The branch portion 42 and the cover member 12 can be taped together in a staking shape.

  Therefore, when the branching jig 10 of this embodiment is used, the workability of the wiring operation of the branch portion 42 in the wire harness 17 and the manufacturing work of the wire harness 17 can be extremely effectively achieved. Can be increased. Further, the tape winding operation of the branching portion 42 can be performed while the bundle of the electric wires 32 is held by the branching wiring jig 10, so that the dimensional accuracy of the branching portion 42 and further the entire wire harness 17 can be dramatically increased. You can also. Moreover, since it is not necessary for the operator to hold the branching portion 42 during tape winding, the branching portion 42 can be easily taped with a relatively uniform force, and the wire harness 17 caused by a shift in the center of gravity of the branching portion 42 can be achieved. The occurrence of twisting can be effectively avoided.

  Further, since the cover member 12 is made of a soft resin, the cover member 12 is wound around the outer peripheral surface of the bundle of the electric wires 32 constituting the branch portion 42 when the cover member 12 is tape-wound together with the branch portion 42. Deform. Therefore, when the cover member 12 is taped together, it is possible to advantageously eliminate the reduction of the binding force of the branch portion 42 by the binding tape 48. In addition, since the cover member 12 is made of a thin sheet material, it is possible to effectively avoid an increase in the size of the branch portion 42 due to the winding of the cover member 12 around the branch portion 42.

  Furthermore, the side support portion 30 is inserted into the insertion hole 38 of the cover member 12, whereby the cover member 12 is assembled to the side support portion 30 (the pair of wire holding portions 16 and 16). Therefore, the cover member 12 and the branch portion 42 wound with tape are removed from the branch wiring jig 10 simply by lifting the cover member 12 so as to pull out the side support portion 30 from the insertion hole 38. It can be easily detached. Also by this, the workability of the manufacturing work of the wire harness 17 can be improved.

  Further, in the branching wiring jig 10 of the present embodiment, the pair of split leg portions 18 and 18 are integrally connected by the base leg portion 20. Therefore, the pair of split legs 18 and 18 can be attached at a stroke without being separately attached to the assembly drawing board 26. Thereby, the attachment structure and attachment work to the assembly drawing board 26 of a pair of division | segmentation leg parts 18 and 18 can be simplified.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, as shown in FIG. 6, the support member 14 of the jig main body 11 may be configured by a plate material having a substantially U shape as a whole. In FIG. 6 and FIG. 7 to be described later, members and parts having the same structure as those of the above-described embodiment are denoted by the same reference numerals as in FIGS.

  Specifically, the support member 14 includes a pair of split leg portions 18 and 18 that are vertically opposed to each other with a gap therebetween, and lower ends of the pair of split leg portions 18 and 18. It has the flat base leg part 20 connected mutually. Further, a lower support portion 28 made of a flat plate having the same width is provided at the upper end portions of the pair of divided leg portions 18 and 18 so as to have a length shorter by a predetermined dimension than half of the opposing separation distance of the pair of divided leg portions 18 and 18. Now, they are integrally projected so as to extend inward in the facing direction. Furthermore, pin-shaped side support portions 30 and 30 are integrally formed at both ends in the width direction of the projecting tip portions of the two lower support portions 28 and 28 made of such flat plates so as to extend upward. Is erected. And the electric wire holding part 16 is comprised by the lower support part 28 which consists of these flat plates, and the two pin-shaped side support parts 30 and 30. As shown in FIG. The jig body 11 is made of, for example, an integrally molded product formed using a metal material or a resin material.

  Even when the branching wiring jig 10 having the jig body 11 having such a structure is used, the same operation and effect as when the branching wiring jig 10 of the above-described embodiment is used can be enjoyed effectively. it can.

  Further, as shown in FIG. 7, the cover member 12 includes a rod portion 50 having a cross shape and four circular ring portions 52, 52 integrally formed at four tip portions of the cross-shaped rod portion 50. , 52, 52. The rod portion 50 of the cover member 12 has a cross shape in which four extending portions 36, 36, 36, 36 made of a bar or a long and thin plate material extend radially from the center portion. . Also, here, one of the four extending portions 36, 36, 36, 36 has a length smaller than the other three. Furthermore, the inner hole of each ring part 52 is an insertion hole 38 through which the pin-shaped side support part 30 of the electric wire holding part 16 can be inserted.

  In such a cover member 12, since the four extending portions 36, 36, 36, 36 of the cross-shaped rod portion 50 are configured by a bar material or a long and thin plate material, each extending portion 36 is provided. Compared with the case where is made of a thin sheet material, it is possible to advantageously increase the overall strength of each of the extending portions 36 and thus the cover member 12. In addition, the entire surface area of the cover member 12 is effectively reduced as compared with the case where each extending portion 36 is formed of a thin sheet material. As a result, the area where the cover member 12 obstructs the close contact between the tape-wrapped branch portion 42 and the binding tape 48 is made as small as possible. As a result, the bundling force of the bundling portion 42 wound with the tape by the bundling tape 48 can be sufficiently secured.

  In addition, one extending portion 36 has a length dimension larger than the other three extending portions 36, 36, 36. Therefore, by winding the cover member 12 with the branch portion 42 with tape, the center position of the intersection of the tape-shaped cross-shaped branch portion 42 can be shifted. As a result, the degree of freedom in designing the wire harness 17 can be improved.

  Whether the cover member 12 is made of a thin sheet material as shown in FIG. 3 or the rod member 50 as shown in FIG. The lengths of the two extending portions 36, 36, 36, 36, that is, the separation distance from the center portion of the cover member 12 to each insertion hole 38 and each ring portion 52 can be changed as appropriate. That is, the length of at least one of the four extending portions 36, 36, 36, 36 may be different from the length of the other extending portions 36.

  Moreover, the standing position of the side support part 30 with respect to the lower support part 28 of the electric wire holding part 16 can also be appropriately changed from the illustrated position. Furthermore, as long as such a side support part 30 can support the electric wire 32 from the side, it may exhibit a plate shape or a block shape, for example.

  As long as the lower support portion 28 of the electric wire holding portion 16 can also support the electric wire 32 from below, for example, a rod shape or a block shape may be used.

  Moreover, you may comprise a pair of division | segmentation leg parts 18 and 18 by another body. That is, it is possible to omit the base leg portion 20 and to form the support members 14 and 14 with two independent divided leg portions 18 and 18 respectively.

  In addition, the present invention can be implemented in a mode in which various changes, modifications, improvements, and the like are added based on the knowledge of those skilled in the art. Further, it goes without saying that such embodiments are all included in the scope of the present invention without departing from the gist of the present invention.

10: Branch wiring jig, 12: Cover member, 14: Support member, 16: Electric wire holding part, 17: Wire harness, 18: Split leg part, 20: Base leg part, 26: Assembly drawing board, 28: Lower support part, 30: Side support part, 31: Gap, 32: Electric wire, 42: Branch part, 50: Rod part, 52: Ring part

Claims (7)

A branch wiring jig used to hold an electric wire installed upright on an assembly drawing board of a wire harness and routed to a branch portion of the wire harness,
A support member attached so as to protrude on the assembly drawing board;
It is supported by the support member so as to be spaced apart above the assembly drawing board, and includes a pair of electric wire holding portions facing each other with a gap therebetween,
The pair of electric wire holding portions each extend in a direction orthogonal to the opposing direction to support the electric wire from below, and protrude upward from both side ends of the lower support portion to project the electric wires laterally. While having two side supports that support from
The support member supports the pair of electric wire holding portions, respectively, and has a pair of divided leg portions arranged to face each other with a gap therebetween in the facing direction of the pair of electric wire holding portions,
The opposing gaps of the pair of electric wire holding portions are extended between the four side support portions arranged to face each other at a distance from each other, and are detachably assembled to the side support portions. A branch wiring jig comprising a cover member made of a soft resin that covers the opposed gap and supports the electric wire from below by being placed on a lower support portion.   The branching wiring jig according to claim 1, wherein an opposing direction separation distance between the pair of split leg portions is equal to or greater than an opposing direction separation distance between the pair of electric wire holding portions.   The said cover member is comprised by the thin sheet which spreads over between side support parts, and the penetration hole by which the said side support part is penetrated is penetrated by the outer-periphery edge part of the thin sheet. The branch wiring jig according to 1.   The cover member includes a cross-shaped rod portion and four ring portions formed at a protruding tip portion of the rod portion, and the four ring portions are respectively inserted into the four side support portions. The branching wiring jig according to claim 1 or 2, wherein the branching wiring jig is configured as described above.   The branch wiring jig according to claim 4, wherein a separation distance from the center of the cross-shaped rod portion to each of the ring portions is different from that of the other ring portions in at least one ring portion. In the wire harness including the branch part of the wire bundle,
The branch portion of the electric wire is routed using the branch wiring jig according to any one of claims 1 to 5, and the branch portion includes the branch wiring jig. A wire harness, characterized in that a cover member is overlapped with the wire bundle and fixed to the wire bundle with a tape wound in a hanging shape. An assembly drawing board of a wire harness,
An assembly drawing board of a wire harness, wherein the branching wiring jig according to any one of claims 1 to 5 is erected.

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