Wire harness

Abstract

To provide a wire harness of which the assemblability can be improved.SOLUTION: A wire harness WH comprises: a wiring material W having conductivity; a housing 100 into the inside of which the wiring material W is inserted; and a bracket 200 jointly fastened with housing 100 to a fixing object part A. In addition, the housing 100 comprises a first insertion hole 123 into which a fastening bolt B1 provided at the fixing object part A can be inserted, and the bracket 200 comprises a second insertion hole 222 into which the fastening bolt B1 can be inserted. In addition, the housing 100 and the bracket 200 comprise temporary fixing parts F1 which can temporarily hold the bracket 200 to the housing 100 in a state of matching the first insertion hole 123 and the second insertion hole 222.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a wire harness. [Background technology]

[0002] For example, Patent Document 1 discloses a wire harness in which a protector is fixed to a vehicle body or the like via a bracket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-11810 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when a housing such as a protector is fixed using a bracket, the worker must support both components with his / her hands while performing the assembly work, which may increase the burden on the worker and reduce the work efficiency. The wire harness described in the above-mentioned Patent Document 1 has a fixing structure between the protector and the bracket, so that the protector is engaged and fixed to the bracket, but this structure requires that a fixing structure be formed on both the protector and the bracket. Therefore, there is room for further improvement in the assembly structure of the wire harness.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a wire harness that can be easily assembled. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the wire harness of the present invention comprises a conductive wiring material, a housing into which the wiring material is inserted, and a bracket that is fastened together with the housing to a target portion, the housing having a first insertion hole through which a fastening bolt provided on the target portion can be inserted, the bracket having a second insertion hole through which the fastening bolt can be inserted, and the housing and the bracket having a temporary fixing portion that can temporarily hold the bracket to the housing with the first insertion hole and the second insertion hole aligned. Effect of the Invention

[0007] The wire harness according to the present invention has an effect of improving the ease of installation. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing a schematic configuration of a wire harness according to an embodiment. [Diagram 2] FIG. 2 is a perspective view illustrating a schematic configuration of a temporary fixing part applied to the wire harness according to the embodiment. [Diagram 3] FIG. 3 is a cross-sectional view illustrating a schematic configuration of a temporary fixing part applied to the wire harness according to the embodiment. [Figure 4] FIG. 4 is a cross-sectional view illustrating a schematic configuration of a temporary fixing part applied to the wire harness according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0010] For the sake of convenience, wiring materials and the like are omitted in Fig. 2 and Fig. 4. Also, for the sake of convenience, wiring materials, fastening nuts and the like are omitted in Fig. 3.

[0011] [Embodiment] The wire harness WH shown in Figure 1 is, for example, a composite component made by bundling together multiple wiring materials W used for power supply and signal communication to connect various devices installed in a vehicle, and connecting the multiple wiring materials W to each device using connectors or the like.

[0012] The wire harness WH includes a conductive wiring material W, a housing 100 through which the wiring material W is inserted, and a bracket 200 that is fixed to a target portion A together with the housing 100. The wire harness WH of this embodiment is configured to improve the ease of assembly by providing temporary fixing portions F1 on the housing 100 and the bracket 200 and temporarily holding the bracket 200 on the housing 100 via the temporary fixing portion F1 before the housing 100 is permanently fixed to the target portion A. Hereinafter, each component of the wire harness WH will be described in detail with reference to Figs. 1 to 4.

[0013] The fixing target part A here is, for example, the body of a vehicle.

[0014] In addition, the wire harness WH may further include a corrugated tube, a grommet, a connector, and the like.

[0015] 1 typically corresponds to the extension direction of the target part A of the wire harness WH. The X direction typically corresponds to the direction along the wiring direction of the wiring material W. The Z direction in FIGS. 1, 3, and 4 corresponds to the assembly direction of the wire harness WH to the target part A, the insertion direction of the fastening bolt B1 into the housing 100 and the bracket 200, etc. Unless otherwise specified, each direction used in the following description is described as the direction in which the wire harness WH is fixed to the target part A, and the Z direction is referred to as the assembly direction Z, the Y direction is referred to as the width direction Y, and the X direction is referred to as the length direction X.

[0016] [Routing material] The wiring material W is, for example, an insulated wire in which a core wire formed by bundling a plurality of conductive metal wires is covered with an insulating covering portion.

[0017] [Case] The housing 100 is formed of an insulating resin material or the like, and the wiring material W is inserted therein. The housing 100 of this embodiment is a protector that can regulate the wiring path of the wiring material W by being fixed to a fixing target portion A, and has a main body portion 110 and a fixing portion 120 as shown in Figs.

[0018] The main body 110 is a portion that protects the wiring material W that is inserted therein. The main body 110 of this embodiment includes a base member 111, a cover member 112, and a locking mechanism 113, as shown in FIG.

[0019] The base member 111 is a portion that is partitioned and formed by the wall of the main body 110, and that houses the wiring material W inside. The base member 111 of this embodiment has a cross-sectional shape along the longitudinal direction X that is substantially U-shaped. Therefore, the base member 111 is configured to include an insertion opening 111p (see FIG. 1) that opens in the longitudinal direction X, and an opening 111q (see FIG. 3) that opens in the assembly direction Z.

[0020] The cover member 112 is formed by the wall of the main body 110, and is assembled to the base member 111 to close the opening 111q that opens in the assembly direction Z of the base member 111. The cover member 112 of this embodiment is formed in a plate shape. Therefore, the main body 110 of this embodiment is formed in a cylindrical shape with both ends in the length direction X open as a whole by assembling the cover member 112 to the base member 111. The main body 110 can regulate the position and direction of the wiring material W inserted inside by surrounding the wiring material W with the wall of the base member 111 and the wall of the cover member 112.

[0021] 2, the locking mechanism 113 is a part that holds the cover member 112 on the base member 111. The locking mechanism 113 of this embodiment is composed of a locking protrusion 111a provided on the base member 111 and a locked frame portion 112a provided on the cover member 112. Therefore, in the main body portion 110 of this embodiment, the locking protrusion 111a of the base member 111 fits into the locked frame portion 112a of the cover member 112, so that the cover member 112 can be assembled to the base member 111 in an appropriate position.

[0022] The fixing portion 120 is a portion that is fixed to the fixing target portion A when the wire harness WH is assembled to the fixing target portion A. The fixing portion 120 of this embodiment is formed to protrude from the outer surface side of the base member 111 constituting the main body portion 110, and has a fixing portion F formed along a plane (a plane extending along the width direction Y and the length direction X) perpendicular to the assembly direction Z (see FIG. 2, etc.). The fixing portion F provided on the fixing portion 120 is provided on the cover member 112 side in a state in which the cover member 112 is assembled to the base member 111. Two fixing portions 120 are provided, and each is provided at a position corresponding to the insertion opening 111p of the base member 111 (see FIG. 1). Of the two fixing portions 120, the fixing portion 120A that is fastened together with the bracket 200 includes a locking portion 121 as a temporary fixing portion F1, a rib 122, and a first insertion hole 123 as a permanent fixing portion F2. The other fixing part 120B includes a first insertion hole 123 as a final fixing part F2. The temporary fixing part F1 and the final fixing part F2 of the fixing part 120A are both provided in the fixing part F of the fixing part 120A, and the final fixing part F2 of the fixing part 120B is provided in the fixing part F of the fixing part 120B.

[0023] The locking portion 121 is a portion that temporarily holds the bracket 200 when the wire harness WH is attached to the fixing target portion A. As shown in Fig. 2, the locking portion 121 in this embodiment is located on one side of the fixing portion F in the assembling direction Z, and is formed on an outer surface 120Sa that is located on the opposite side to an outer surface (outer surface 120Sb) that contacts the fixing target portion A when the wire harness WH is fixed to the fixing target portion A. Two locking portions 121 are provided, and are provided as a pair in the width direction of the fixing portion 120 (direction D in Figs. 3 and 4). Each locking portion 121 is configured to include a support wall portion 121a and a claw portion 121b provided on the support wall portion 121a.

[0024] The support wall 121a is a wall formed to protrude from the outer surface 120Sa of the fixed part 120 along the assembly direction Z. The support wall 121a in this embodiment is formed in a plate shape and provided at each end of the fixed part 120 located in the width direction (direction D in FIGS. 3 and 4).

[0025] The claw portion 121b is a cantilever-shaped arm portion formed to protrude from the inner surface side of the support wall portion 121a (the inner side in the direction D in Figs. 3 and 4). In this embodiment, the claw portion 121b is provided on the tip side of the support wall portion 121a. The claw portion 121b is formed along the assembly direction Z, and is formed from the tip side of the support wall portion 121a toward the base end side (the outer surface 120Sa side of the fixed portion 120). Therefore, the fixed end of the claw portion 121b is located on the tip side of the support wall portion 121a, and the free end is located on the base end side of the support wall portion 121a.

[0026] 3 and 4, one claw portion 121b is provided on each of the support walls 121a. Therefore, the claw portions 121b provided on each of the pair of locking portions 121 are disposed opposite each other in the width direction of the fixing portion 120 (direction D in FIGS. 3 and 4).

[0027] Furthermore, the claw portion 121b is supported by the support wall portion 121a so as to be elastically deformable, and has a step portion 121c at its free end, i.e., its tip portion, as shown in Fig. 3 and Fig. 4. The step portion 121c is a recess formed on the inner surface side of the claw portion 121b (the inner side in direction D in Fig. 3 and Fig. 4). Therefore, the step portions 121c provided on each of the pair of locking portions 121 are disposed opposite each other in the width direction (direction D) of the fixing portion 120.

[0028] The ribs 122 are provided on the support wall portion 121a and are convex portions formed to protrude from the inner surface side of the support wall portion 121a. In this embodiment, the ribs 122 are formed linearly along the assembly direction Z. Two ribs 122 are provided on each support wall portion 121a, and are provided at positions sandwiching the claw portions 121b (see FIG. 2). The ribs 122 provided on each of the pair of locking portions 121 are disposed opposite each other in the width direction of the fixing portion 120 (direction D in FIGS. 3 and 4).

[0029] The first insertion hole 123 is a hole formed along the assembly direction Z. In this embodiment, the first insertion hole 123 penetrates from the outer surface 120Sa to the outer surface 120Sb of the fixing portion 120. When the wire harness WH is assembled to the fixing target portion A, the threaded portion B1a of the fastening bolt B1 is inserted into the first insertion hole 123 (see Figs. 3 and 4). The first insertion hole 123 is provided at a position sandwiched between the two locking portions 121 in the width direction of the fixing portion 120 (direction D in Figs. 3 and 4).

[0030] [bracket] The bracket 200 is formed of, for example, a metal material and supports the housing 100 by being fastened together with the housing 100 to the fixing target portion A. The bracket 200 of this embodiment is made of a plate-like member and is formed into an arch shape by forming a single sheet metal into various processes such as punching, pressing, bending, etc. As shown in Figs. 1 and 2, the bracket 200 has a main body portion 210 and a fixing portion 220.

[0031] The main body 210 is a portion formed to protrude in an arch shape. The main body 210 of this embodiment is disposed across the housing 100 when the wire harness WH is attached to the fixing target portion A. In addition, for example, a cushioning material for absorbing vibrations of the housing 100 is provided between the main body 210 and the housing 100. Therefore, the bracket 200 of this embodiment can absorb vibrations of the housing 100 while supporting the housing 100 via the main body 210.

[0032] The fixing portion 220 is a portion that is fixed to the fixing target portion A when the wire harness WH is assembled to the fixing target portion A. The fixing portion 220 in this embodiment is formed of a plate-shaped member. As shown in FIG. 1, the fixing portion 220 is provided at both ends of the main body portion 210, and has a fixing portion F formed along a plane (a plane extending along the width direction Y and the length direction X) perpendicular to the assembly direction Z. Of the two fixing portions 220, the fixing portion 220A that is fastened together with the housing 100 includes a locked portion 221 as a temporary fixing portion F1 and a second insertion hole 222 as a permanent fixing portion F2. The other fixing portion 220B includes a second insertion hole 222 as a permanent fixing portion F2. Additionally, temporary fixing portion F1 and final fixing portion F2 of fixing portion 220A are both provided at fixing site F of fixing portion 220A, and final fixing portion F2 of fixing portion 220B is provided at fixing site F of fixing portion 220B.

[0033] The locked portion 221 is a portion that is temporarily held by the locking portion 121 of the housing 100 when the wire harness WH is assembled to the fixing target portion A. In this embodiment, two locked portions 221 are provided, and are formed at the end portions in the width direction (direction D in Figs. 3 and 4) of the fixed portion 220. The fixed portion 220A on which the locked portions 221 are provided is clamped between a pair of claw portions 121b in a state where the fixed portion 221 is locked to the locking portion 121 of the housing 100. The locked portion 221 is disposed between the outer surface 120Sa of the fixed portion 120A on the housing 100 side and the claw portions 121b of the locking portion 121 in a state where the fixed portion 221 is locked to the locking portion 121 of the housing 100 (see Fig. 3 and the like).

[0034] The second insertion hole 222 is a hole formed along the assembly direction Z. The second insertion hole 222 in this embodiment is a through hole formed larger than the above-described first insertion hole 123, and a threaded portion B1a of the fastening bolt B1 is inserted through the second insertion hole 222 when the wire harness WH is assembled to the fixing target portion A. The second insertion hole 222 on the fixing portion 220A side is provided at a position sandwiched between two locked portions 221 in the width direction of the fixing portion 220 (direction D in FIGS. 3 and 4).

[0035] Next, an assembly operation of the wire harness WH will be described.

[0036] First, a worker prepares a wire harness WH and assembles the bracket 200 to the housing 100. At this time, the bracket 200 is attached from the base member 111 side of the housing 100 (the outer surface 120Sa side of the housing 100). Then, the fixing portion 220A of the bracket 200 is pushed into the fixing portion 120A of the housing 100, thereby assembling the bracket 200.

[0037] More specifically, in bracket 200, first, locked portions 221 provided as a pair on fixed portion 120A come into contact with locking portions 121 and rib 122 provided as a pair on fixed portion 120A of housing 100, respectively.

[0038] Then, when the fixed portion 220A is further pushed in, the orientation of the pair of locked portions 221 of the bracket 200 with respect to the fixed portion 120A is corrected by the pair of ribs 122 of the housing 100. Therefore, the locked portions 221 of the bracket 200 are fitted to the pair of locking portions 121 of the housing 100 in an appropriate positional relationship.

[0039] When the fixed portion 220A is further pushed in, the pair of locked portions 221 of the bracket 200 come into contact with the claw portions 121b provided on the locking portion 121, respectively, and cause the claw portions 121b to bend outward (toward the support wall portion 121a). When the fixed portion 220A is further pushed in, the pair of locked portions 221 of the bracket 200 come into contact with the step portions 121c provided at the tips of the claw portions 121b, respectively, and are disposed between the outer surface 120Sb of the fixed portion 120A and the step portions 121c.

[0040] The second insertion hole 222 of the bracket 200 is disposed at a position that mates with the first insertion hole 123 of the housing 100 when the bracket 200 is disposed between the outer surface 120Sb of the fixing portion 120A and the step portion 121c.

[0041] 3, the pair of engaged parts 221 of the bracket 200 are sandwiched between the pair of engaging parts 121 of the housing 100 by the force of the claw parts 121b returning inward (toward the first insertion hole 123). Therefore, the housing 100 can temporarily hold the bracket 200 via the temporary fixing part F1 by engaging the engaged parts 221 of the bracket 200 with the engaging parts 121 of the housing 100 in a state where the first insertion hole 123 and the second insertion hole 222 are aligned. In this embodiment, the engaged parts 221 of the bracket 200 are formed of a plate-shaped member, and the engaging parts 121 of the housing 100 are formed of an elastic arm part, so that the bracket 200 can be temporarily held on the housing 100 by simply providing a new structure only on the housing 100 side. Therefore, the number of parts to be changed in structure can be reduced.

[0042] Then, the worker assembles the wire harness WH to the fixing target portion A. At this time, the wire harness WH is assembled so that the housing 100 is in contact with the fixing target portion A. Therefore, the first insertion hole 123 of the housing 100 is first inserted along the assembly direction Z into the threaded portion B1a of the fastening bolt B1 previously assembled to the fixing target portion A. Then, when the threaded portion B1a of the fastening bolt B1 is inserted into the first insertion hole 123 of the housing 100, the second insertion hole 222 of the bracket 200 is inserted along the assembly direction Z into the fastening bolt B1. Note that the fixing portion 220A of the bracket 200 is temporarily held to the fixing portion 120A of the housing 100 via the temporary fixing portion F1 when the wire harness WH is assembled to the fixing target portion A. Therefore, the fixing portion 220A of the bracket 200 can be prevented from sagging due to its own weight during assembly. Moreover, the worker can perform the work without supporting the bracket 200 with his / her hands, and can perform the work by supporting only the housing 100 with his / her hands. Moreover, the second insertion hole 222 provided in the fixing part 220A of the bracket 200 is arranged in a state of being aligned with the first insertion hole 123 provided in the fixing part 120A of the housing 100 when the wire harness WH is assembled to the fixing target part A, and is positioned so as to overlap with the first insertion hole 123 provided in the fixing part 120A of the housing 100 in the assembly direction Z, which is the insertion direction of the fastening bolt B1. Therefore, the worker can insert the first insertion hole 123 of the housing 100 and the second insertion hole 222 of the bracket 200 into the threaded part B1a of the fastening bolt B1 at once. Therefore, the burden on the worker can be reduced, and the work efficiency can be improved.

[0043] Then, the worker fixes the wire harness WH to the fixing target part A. At this time, the worker fastens the fastening nut B2 to the fastening bolt B1 in a state where the threaded part B1a of the fastening bolt B1 is inserted into the first insertion hole 123 of the housing 100 and the second insertion hole 222 of the bracket 200. Note that the housing 100 and the bracket 200 are connected to each other via the temporary fixing part F1 as described above. Therefore, the worker can perform the fastening work without supporting the bracket 200 with his / her hand, for example, by supporting the housing 100 with one hand and tightening the fastening nut B2 with the other hand. This reduces the burden on the worker and improves the work efficiency.

[0044] So far, the assembling operation of the wire harness WH has been described, but there is no particular limitation on the timing at which the bracket 200 is temporarily held in the housing 100 by assembling the bracket 200 to the housing 100. For example, the housing 100 and the bracket 200 may be temporarily held in the housing 100 by pushing the fixing portion 220A of the bracket 200 into the fixing portion 120A of the housing 100 when the first insertion hole 123 and the second insertion hole 222 are inserted into the threaded portion B1a of the fastening bolt B1.

[0045] The wire harness WH described above includes a conductive wiring material W, a housing 100 through which the wiring material W is inserted, and a bracket 200 that is fastened together with the housing 100 to a target portion A. The housing 100 has a first insertion hole 123 through which a fastening bolt B1 provided in the target portion A can be inserted, and the bracket 200 has a second insertion hole 222 through which the fastening bolt B1 can be inserted. The housing 100 and the bracket 200 have a temporary fixing portion F1 that can temporarily hold the bracket 200 to the housing 100 in a state in which the first insertion hole 123 and the second insertion hole 222 are aligned.

[0046] According to this configuration, the wire harness WH is provided with a temporary fixing portion F1 for temporarily holding the bracket 200 in the housing 100. Therefore, when the bracket 200 is temporarily held in the housing 100 via the temporary fixing portion F1, the worker does not need to hold the bracket 200 by hand, and therefore, the assembling operation (e.g., fastening work, etc.) of the wire harness WH can be efficiently performed. Furthermore, the bracket 200 is temporarily held in the housing 100 via the temporary fixing portion F1, so that it can be prevented from coming off the housing 100 during assembling. Therefore, the wire harness WH of the present invention can reduce the burden on the worker and improve the work efficiency by the temporary fixing portion F1 provided in the housing 100 and the bracket 200, and can improve the assembling performance to the fixing target portion A.

[0047] Further, the temporary fixing part F1 applied to the wire harness WH described above has a pair of locking parts 121 provided on the housing 100 and a pair of locked parts 221 provided on the bracket 200. The locking parts 121 are formed to protrude from the outer surface 120Sa of the housing 100 and include claw parts 121b extending in a cantilever shape along the insertion direction Z of the fastening bolt B1. The claw parts 121b provided on each of the pair of locking parts 121 are arranged opposite to each other, and the locked parts 221 are arranged between the outer surface 120Sa of the housing 100 and the claw parts 121b in a state where the locked parts 221 are locked to the locking parts 121. With this configuration, the temporary fixing part F1 can increase the force with which the locking parts 121 lock the locked parts 221 of the bracket 200 by the claw parts 121b provided on the locking parts 121 of the housing 100 locking the locked parts 221 of the bracket 200. Therefore, in the wire harness WH of the present invention, the bracket 200 can be temporarily held in the housing 100 more reliably.

[0048] Furthermore, the housing 100 and the bracket 200 described above have a fixing portion F that is fixed to a fixing target portion A by fastening a fastening nut B2 to a fastening bolt B1 inserted through the first insertion hole 123 and the second insertion hole 222, and the temporary fixing portion F1 is provided on the fixing portion F. According to this configuration, when the bracket 200 is temporarily held to the housing 100 via the temporary fixing portion F1, the second insertion hole 222 is arranged at a position overlapping the first insertion hole 123 of the housing 100. Therefore, the housing 100 and the bracket 200 can insert the first insertion hole 123 and the second insertion hole 222 into the fastening bolt B1 at once. Therefore, the burden on the worker can be reduced, the work efficiency can be improved, and the assembling to the fixing target portion A can be improved.

[0049] The wire harness WH according to the embodiment of the present invention described above is not limited to the above embodiment, and various modifications are possible within the scope of the claims.

[0050] For example, the fixing target portion A has been described as the body of the vehicle, but it may also be, for example, the housing of an in-vehicle device such as an electric junction box or a power supply unit.

[0051] The shape and position of the temporary fixing parts, and the number of temporary fixing parts, are not particularly limited.

[0052] Furthermore, the direction in which the housing and the bracket are attached to the target portion is not particularly limited.

[0053] The wire harness according to the present embodiment may be configured by appropriately combining the components of the embodiment and modified examples described above. [Explanation of symbols]

[0054] 100 Case 120Sa, 120Sb external surface 121 Locking part 121b Claw part 123 First insertion hole 200 Bracket 221 Locked part 222 Second insertion hole A. Fixation target area B1 Fastening bolt B2 Fastening nut F Fixed area F1 Temporary fixing part F2 Fixed part W Routing material WH Wire harness X length direction Y Width direction Z Assembly direction (direction of fastening bolt insertion)

Claims

1. A conductive wiring material; A housing into which the wiring material is inserted; a bracket that is fastened together with the housing to a target portion; the housing has a first insertion hole through which a fastening bolt provided in the fixing target portion can be inserted, The bracket has a second insertion hole through which the fastening bolt can be inserted, the housing and the bracket have a temporary fixing portion capable of temporarily holding the bracket on the housing in a state in which the first insertion hole and the second insertion hole are aligned, Wire harness.

2. the temporary fixing portion has a pair of locking portions provided on the housing and a pair of locked portions provided on the bracket, the locking portion is formed to protrude from an outer surface of the housing and includes a claw portion extending in a cantilever shape along an insertion direction of the fastening bolt, The claw portions provided on the pair of locking portions are disposed opposite each other, the engaged portion is disposed between the outer surface of the housing and the claw portion in a state where the engaged portion is engaged with the engaging portion; The wire harness according to claim 1 .

3. the housing and the bracket have a fixing portion that is fixed to the fixing target portion by fastening a fastening nut to the fastening bolt inserted into the first insertion hole and the second insertion hole, The temporary fixing portion is provided at the fixing portion. The wire harness according to claim 1 or 2.

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