Wire harness
The wire harness with a flat-shaped resin member addresses the challenge of thick wiring spaces by optimizing the resin member's orientation to reduce thickness and improve flexibility, enhancing routing efficiency and compatibility with vehicle structures.
Patent Information
- Application Number
- JP2024020748
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-15
- Publication Date
- 2025-08-27
AI Technical Summary
Existing wire harness designs face challenges in reducing the thickness of the wiring space due to the circular cross-sectional shape of the exterior member, making it difficult to minimize the required space.
The wire harness incorporates a resin member with a flat cross-sectional shape having longitudinal and lateral directions, allowing the harness to be routed with these planes facing the wiring surface, thereby reducing the thickness of the routing space.
This configuration enables a thinner routing space by optimizing the layout of the resin member, which can be easily deformed to fit various vehicle surfaces and reduces interference with peripheral components.
Smart Images

Figure 2025124975000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a wire harness. [Background technology]
[0002] Patent Document 1 discloses a wire harness having a wire harness main body including electric wire members and an exterior member surrounding the outer periphery of the electric wire members, a path restricting member attached to the outer periphery of the exterior member and restricting the path of the wire harness main body, and an attachment member attached to the outer periphery of a part of the path restricting member in the longitudinal direction. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Publication No. 2023-066801 Summary of the Invention [Problem to be solved by the invention]
[0004] It is desirable to be able to reduce the thickness of the wiring space when the wire harness is routed. When electric wires are inserted into a cylindrical exterior member, it is difficult to reduce the thickness of the wiring space because the cross-sectional shape of the exterior member is circular.
[0005] An object of the present invention is to provide a wire harness that can reduce the thickness of the wiring space. [Means for solving the problem]
[0006] The wire harness of the present invention comprises a plurality of electric wires and a resin member having a main body covering the plurality of electric wires and integrally molded with the plurality of electric wires, wherein the cross-sectional shape of the main body in a plane perpendicular to the axial direction of the electric wires is a flat shape having a longitudinal direction and a lateral direction, and the main body has at least one of a first plane which is a plane extending in the longitudinal direction and a second plane which is a plane extending in the lateral direction. [Effects of the Invention]
[0007] In the wire harness according to the present invention, the main body of the resin member has at least one of a first plane extending in the longitudinal direction and a second plane extending in the lateral direction. According to the wire harness according to the present invention, by facing the first plane or the second plane to the wiring surface, an effect is achieved in that the wiring space can be made thinner. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. 1 is a plan view of a wire harness according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view of a resin member according to the embodiment. [Figure 3] FIG. 3 is a cross-sectional view of the wired resin member. [Figure 4] FIG. 4 is a cross-sectional view of the wired resin member. [Figure 5] FIG. 5 is a side view of the wired resin member. [Figure 6] FIG. 6 is a cross-sectional view of the groove and the resin member. [Figure 7] FIG. 7 is a plan view of the wired resin member. [Figure 8] FIG. 8 is a cross-sectional view of the groove and the resin member. [Figure 9] FIG. 9 is a plan view of the wired resin member. [Figure 10] FIG. 10 is a perspective view of the wired resin member. [Figure 11]FIG. 11 is a plan view of the wire harness according to the embodiment. [Figure 12] FIG. 12 is a plan view of the wire harness according to the embodiment. [Figure 13] FIG. 13 is a cross-sectional view of the groove and the resin member. [Figure 14] FIG. 14 is a cross-sectional view of the groove and the resin member. [Figure 15] FIG. 15 is a plan view of the wire harness according to the embodiment. [Figure 16] FIG. 16 is a cross-sectional view of a resin member according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0009] Hereinafter, a wire harness according to 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 the embodiment. Furthermore, components in the following embodiments include those that can be easily imagined by a person skilled in the art or those that are substantially the same.
[0010] [Embodiment] An embodiment will be described with reference to Fig. 1 to Fig. 16. The embodiment relates to a wire harness. Fig. 1 is a plan view of the wire harness according to the embodiment, Fig. 2 is a cross-sectional view of a resin member according to the embodiment, Figs. 3 and 4 are cross-sectional views of the routed resin member, Fig. 5 is a side view of the routed resin member, Fig. 6 is a cross-sectional view of a groove portion and the resin member, Fig. 7 is a plan view of the routed resin member, Fig. 8 is a cross-sectional view of the groove portion and the resin member, Fig. 9 is a plan view of the routed resin member, and Fig. 10 is a perspective view of the routed resin member.
[0011] Fig. 11 and Fig. 12 are plan views of the wire harness according to the embodiment, Fig. 13 and Fig. 14 are cross-sectional views of the groove portion and the resin member, Fig. 15 is a plan view of the wire harness according to the embodiment, and Fig. 16 is a cross-sectional view of the resin member according to the embodiment. Fig. 2 shows a cross section taken along II-II in Fig. 1. Fig. 16 shows a cross section taken along XVI-XVI in Fig. 15.
[0012] The wire harness 1 of this embodiment has a plurality of electric wires W and at least one resin member 2. In this specification, the axial direction of the electric wires W is simply referred to as the axial direction X. The wire harness 1 of FIG. 1 has a plurality of resin members 2. The plurality of resin members 2 are arranged side by side along the axial direction X. The plurality of resin members 2 are arranged at intervals. In other words, a plurality of electric wires W are exposed between two adjacent resin members 2. Each electric wire W has a core wire and an insulating coating.
[0013] In the illustrated wire harness 1, the plurality of electric wires W are formed by bundling a plurality of sub-harnesses. The wire harness 1 has a first sub-harness S1 and a second sub-harness S2. That is, the plurality of electric wires W include electric wires W of the first sub-harness S1 and electric wires W of the second sub-harness S2.
[0014] The resin member 2 is a member molded integrally with the plurality of electric wires W. The resin member 2 is formed so as to cover the coating of the electric wires W. The resin member 2 is molded, for example, from an insulating synthetic resin. The resin member 2 is insert-molded, for example, with respect to the plurality of electric wires W. The resin member 2 of this embodiment is elastically deformable. The resin member 2 may be a flexible member such as rubber.
[0015] Fig. 2 shows the cross-sectional shape of the resin member 2 in a plane perpendicular to the axial direction X. As shown in Fig. 2, the resin member 2 has one main body 20 that covers multiple electric wires W. The cross-sectional shape of the main body 20 is a flat shape having a longitudinal direction D1 and a lateral direction D2. The longitudinal direction D1 and the lateral direction D2 are, for example, perpendicular to each other.
[0016] The main body 20 of the resin member 2 has at least one of a first plane 21 and a second plane 22. The first plane 21 is a plane extending along the longitudinal direction D1. The second plane 22 is a plane extending along the lateral direction D2.
[0017] The cross-sectional shape of the main body 20 shown in Fig. 2 is rectangular. That is, the main body 20 in Fig. 2 has a pair of first planes 21 and a pair of second planes 22. When the cross-sectional shape of the main body 20 is rectangular, the first planes 21 are perpendicular to the short-side direction D2. The two first planes 21 are parallel to each other. The second planes 22 are perpendicular to the long-side direction D1. The two second planes 22 are parallel to each other.
[0018] The main body 20 is formed to surround the plurality of electric wires W. In other words, in a cross section perpendicular to the axial direction X, the plurality of electric wires W are located within a region surrounded by the first plane 21 and the second plane 22.
[0019] The plurality of electric wires W are arranged along the longitudinal direction D1 inside the main body 20. Inside the resin member 2 of FIG. 2, the plurality of electric wires W have two rows WR of electric wires W arranged in the longitudinal direction D1. The first sub-harness S1 and the second sub-harness S2 are, for example, arranged side by side in the longitudinal direction D1. In this case, the electric wires W of the first sub-harness S1 and the electric wires W of the second sub-harness S2 are arranged side by side in the longitudinal direction D1. Note that the electric wires W of the first sub-harness S1 may form one row WR, and the electric wires W of the second sub-harness S2 may form another row WR. The wire harness 1 may have three or more sub-harnesses.
[0020] The wire harness 1 is routed, for example, with one first plane 21 facing a routing surface 110 of the vehicle 100. Fig. 3 shows the wire harness 1 routed on the routing surface 110. The routing surface 110 is, for example, a surface of a metal member that constitutes the body of the vehicle 100. The routing surface 110 may be a surface of a rocker section of the vehicle 100. The routing surface 110 may be an upper surface in the vehicle vertical direction Z.
[0021] The first plane 21 along the longitudinal direction D1 faces the routing surface 110, thereby realizing a thinner routing space when routing the wire harness 1. When the routing surface 110 faces upward in the vehicle vertical direction Z, it is possible to make the routing space thinner in the vehicle vertical direction Z.
[0022] The routing surface 110 may be a surface along the vehicle vertical direction Z, as shown in FIG. 4. The routing surface 110 may be a surface facing the vehicle width direction. In this case, it is possible to reduce the thickness of the routing space in the vehicle width direction. The routing surface 110 may be a surface facing the vehicle longitudinal direction. In this case, it is possible to reduce the thickness of the routing space in the vehicle longitudinal direction.
[0023] The direction in which the wire harness 1 extends may be the vehicle up-down direction Z, the vehicle front-rear direction, the vehicle width direction, or any other direction. The wire harness 1 may be routed in a straight line or may be routed to have a bent portion. The routing surface 110 is not limited to a flat surface.
[0024] The wiring surface 110 may be, for example, a surface curved in an arc shape. FIG. 5 shows the wiring surface 110 curved in an arc shape along the extending direction of the wire harness 1. The wiring surface 110 in FIG. 5 is, for example, the surface of a wheel house of the vehicle 100. In the wire harness 1 in FIG. 5, the electric wires W are exposed between adjacent resin members 2. Therefore, the exposed electric wires W can easily deform along the wiring surface 110 that extends while curving. In addition, the resin member 2 can elastically deform along the shape of the wiring surface 110.
[0025] The wire harness 1 may be routed in a groove provided in the vehicle 100. Fig. 6 shows a member 120 having a routing surface 110. The member 120 is, for example, a metal member, and forms the body of the vehicle 100. The member 120 is manufactured by, for example, die casting or extrusion molding.
[0026] The member 120 has a plate portion 130 and a pair of ribs 140. The plate portion 130 is formed in a plate shape and has a wiring surface 110. The pair of ribs 140 are erected from the plate portion 130 and face each other. The ribs 140 protrude from the plate portion 130 in a direction perpendicular to the wiring surface 110. The ribs 140 have a holding surface 140a. The illustrated holding surface 140a is flat. The two holding surfaces 140a are, for example, parallel to each other.
[0027] The member 120 has a groove 150 surrounded by a pair of ribs 140 and the plate portion 130. The cross-sectional shape of the groove 150 in a plane perpendicular to the wiring path of the wire harness 1 is, for example, rectangular. The main body 20 of the resin member 2 is inserted into the groove 150.
[0028] The resin member 2 is inserted into the groove 150 with the first flat surface 21 facing the wiring surface 110, for example. The value of the width Wd1 of the first flat surface 21 is the same as the value of the width Wd0 of the groove 150 or is slightly larger than the value of the width Wd0 of the groove 150. Therefore, the holding surface 140a can come into contact with the second flat surface 22 of the main body 20 to sandwich the main body 20. A worker wiring the wire harness 1 wires the wire harness 1 along the groove 150 while pushing the main body 20 of the resin member 2 into the groove 150.
[0029] 7 shows the wire harness 1 arranged in the groove portion 150. When the wire harness 1 has a plurality of resin members 2, each of the resin members 2 is pressed into the groove portion 150. The wire harness 1 may be arranged such that the entire resin member 2 is housed in the groove portion 150. In other words, the wire harness 1 may be arranged such that the two first flat surfaces 21 of the resin member 2 are housed between the holding surfaces 140a.
[0030] 8, the resin member 2 may have the second flat surface 22 of the main body 20 facing the routing surface 110. In this case, the main body 20 of the resin member 2 is held by the two holding surfaces 140a of the member 120 from both sides in the short-side direction D2. The value of the width Wd2 of the second flat surface 22 is the same as the value of the width Wd0 of the groove portion 150 or is slightly larger than the value of the width Wd0 of the groove portion 150. Therefore, the holding surface 140a can come into contact with the first flat surface 21 of the main body 20 to sandwich the main body 20.
[0031] In the wire harness 1 thus laid, the plurality of resin members 2 may have different postures. Fig. 9 shows the wire harness 1 in which the plurality of resin members 2 are housed in the groove portion 150 in different postures. The vehicle 100 in Fig. 9 has two members 120. One of the two members 120 is referred to as a first member 120A, and the other member 120 is referred to as a second member 120B. The two members 120A and 120B may be disposed consecutively or spaced apart.
[0032] The first member 120A and the second member 120B each have a routing surface 110 and a groove 150. The first groove 150A, which is the groove 150 of the first member 120A, has a width Wd0 greater than the second groove 150B, which is the groove 150 of the second member 120B.
[0033] The wire harness 1 is routed with the first flat surface 21 facing the routing surface 110 of the first member 120A and the second flat surface 22 facing the routing surface 110 of the second member 120B. In the first member 120A, the plurality of electric wires W are aligned mainly in the width direction of the first groove portion 150A. In the second member 120B, the plurality of electric wires W are aligned mainly in the depth direction of the second groove portion 150B. The alignment direction of the plurality of electric wires W changes between the first member 120A and the second member 120B. The plurality of electric wires W are routed so as to be twisted in a spiral shape in the space between the first groove portion 150A and the second groove portion 150B. Note that the first groove portion 150A and the second groove portion 150B may be groove portions 150 provided in the same member 120.
[0034] The wire harness 1 may be routed along a bent or curved path. FIG. 10 shows the wire harness 1 routed in a curved state between two grooves 150C and 150D. The routing path of the wire harness 1 includes a third groove 150C and a fourth groove 150D. The third groove 150C is a groove 150 included in the third member 120C and extends in a first direction E1. The fourth groove 150D is a groove 150 included in the fourth member 120D and extends in a second direction E2. The second direction E2 intersects with the first direction E1, for example, is perpendicular to the first direction E1.
[0035] The multiple resin members 2 included in the wire harness 1 include resin members 2C, 2D, and 2E. The cross-sectional shape of the resin members 2C, 2D, and 2E is, for example, rectangular. In each of the resin members 2C, 2D, and 2E, the multiple electric wires W are arranged side by side in the longitudinal direction D1.
[0036] The resin member 2C is disposed in the third groove portion 150C and is held by the third groove portion 150C. The resin member 2D is disposed in the fourth groove portion 150D and is held by the fourth groove portion 150D. The resin member 2E is disposed between the two resin members 2C, 2D. The resin member 2C is inserted into the third groove portion 150C so that the multiple electric wires W are aligned in the width direction of the third groove portion 150C. The resin member 2D is inserted into the fourth groove portion 150D so that the multiple electric wires W are aligned in the width direction of the fourth groove portion 150D. In other words, the two resin members 2C, 2D are disposed with the first flat surface 21 facing the wiring surface 110.
[0037] The illustrated resin member 2E is disposed at a curved portion 11 of the wire harness 1. The curved portion 11 is a portion where the extending direction of the wire harness 1 changes from a first direction E1 to a second direction E2, and the electric wires W are routed while being curved. The resin member 2E is disposed, for example, at a middle portion of the curved portion of the electric wires W.
[0038] The resin member 2E is arranged so that the multiple electric wires W are aligned in a third direction E3 inside the resin member 2E. The third direction E3 is a direction perpendicular to both the first direction E1 and the second direction E2. The multiple electric wires W include an inner electric wire W1 and an outer electric wire W2. The inner electric wire W1 is the electric wire W located on the innermost side in the curved portion 11. In other words, the inner electric wire W1 is the electric wire W that extends most inwardly in the curved portion 11 among the multiple electric wires W. The outer electric wire W2 is the electric wire W located on the outermost side in the curved portion 11.
[0039] The resin member 2E is arranged so as to raise the inner electric wire W1 relative to the third groove portion 150C and the fourth groove portion 150D. The resin member 2E in FIG. 10 positions the outer electric wire W2 at the same position as the two resin members 2C, 2D in the third direction E3. The resin member 2E also positions the inner electric wire W1 at a position away from the two resin members 2C, 2D in the third direction E3. The other electric wires W are arranged in order in the third direction E3, starting from the outer electric wire W2 to the inner electric wire W1.
[0040] The resin member 2E may be held by the third member 120C, the fourth member 120D, or another member 120. The resin member 2E may be arranged in the posture shown in FIG. 10 by utilizing the reaction force generated in the electric wire W.
[0041] The resin member 2E can reduce the difference in circumferential length that occurs among the multiple electric wires W by arranging the multiple electric wires W in the third direction E3. In other words, the resin member 2E can absorb the excess length that occurs in the inner electric wire W1 at the curved portion 11 by utilizing the space in the third direction E3.
[0042] The plurality of electric wires W do not have to be arranged evenly inside the main body 20 of the resin member 2. For example, the plurality of electric wires W may be positioned closer to one side in the longitudinal direction D1 or the lateral direction D2. Fig. 11 shows a resin member 2F in which the plurality of electric wires W are arranged closer to one side in the longitudinal direction D1. The wire harness 1 having such a resin member 2F may be used to avoid interference of the electric wires W with peripheral components 160.
[0043] When the peripheral component 160 is located in the wiring path of the wire harness 1 or in the vicinity of the wiring path, it is desirable to be able to prevent interference of the peripheral component 160 with the electric wires W. In this case, the resin member 2F is arranged in the wiring path so as to ensure an appropriate distance between the peripheral component 160 and the plurality of electric wires W. In the wire harness 1, all of the resin members 2 may be resin members 2F that hold the electric wires W by biasing them to one side, or some of the resin members 2 may be resin members 2F that hold the electric wires W by biasing them to one side.
[0044] Of the multiple electric wires W, some of the electric wires W may be drawn out as branch wires from between the two resin members 2. The wire harness 1 shown in FIG. 12 has two adjacent resin members 2G, 2H. Of the multiple electric wires W, some electric wires W3 are held by both of the two resin members 2G, 2H. Other electric wires W4 are drawn out as branch wires between the two resin members 2G, 2H. The electric wire W4 is held by one of the resin members 2G and is not held by the other resin member 2H. The branch wire W4 is connected to, for example, a connector or the like.
[0045] The resin members 2G, 2H are inserted into the groove 150, for example, with the first flat surface 21 facing the wiring surface 110. In this case, the second flat surface 22 of the main body 20 is held by the holding surface 140a. In this case, the width Wd1 of the first flat surface 21 of one resin member 2G and the width Wd1 of the first flat surface 21 of the other resin member 2H may be equal. For example, when two resin members 2G, 2H are inserted into the groove 150 having a constant width Wd0, it is preferable that the widths Wd1 of the two resin members 2G, 2H are equal. In this case, the two resin members 2G, 2H are molded to have the same width Wd1 regardless of the number of electric wires W to be held.
[0046] The resin members 2G, 2H may be inserted into the groove portion 150 with the second flat surface 22 facing the wiring surface 110. In this case, the width Wd2 of the second flat surface 22 of one resin member 2G may be equal to the width Wd2 of the second flat surface 22 of the other resin member 2H. The two resin members 2G, 2H between which the branched portion of the electric wire W is located may have the same cross-sectional shape. That is, the two resin members 2G, 2H may have the same width Wd1 and the same width Wd2. By making the cross-sectional shape of the resin member 2 common regardless of the number of electric wires W to be held, it becomes possible to use a common molding die.
[0047] The main body 20 of the resin member 2 may be provided with a chamfered portion. Fig. 13 shows a resin member 2K having a chamfered portion 23. The main body 20 of the resin member 2K has the chamfered portion 23. The chamfered portions 23 in Fig. 13 are provided at corners on both sides of one first flat surface 21. In other words, in the main body 20, the corners on both sides of one first flat surface 21 have a chamfered shape.
[0048] In the resin member 2K having the chamfered portion 23, the rigidity of the end portion having the chamfered portion 23 is smaller than the rigidity of the center portion. Therefore, the reaction force of the resin member 2K when inserting the resin member 2K into the groove portion 150 is smaller, improving the workability of the insertion work. The illustrated chamfered portion 23 is formed so that the main body 20 can be guided between the pair of ribs 140.
[0049] The chamfered portion 23 is an inclined surface inclined with respect to the longitudinal direction D1. The chamfered portion 23 is inclined toward the center in the longitudinal direction D1 as it approaches the first flat surface 21 from the second flat surface 22 along the short direction D2. It is preferable that the width Wd3 of the first flat surface 21 sandwiched between the chamfered portions 23 is shorter than the width Wd0 of the groove portion 150. Note that the chamfered portions 23 may be provided at corners on both sides of the second flat surface 22.
[0050] The resin member 2 may have a protrusion that is inserted into the groove 150. FIG. 14 shows a resin member 2L having a protrusion 24. The protrusion 24 protrudes from one first flat surface 21 of the main body 20. The cross-sectional shape of the illustrated protrusion 24 is rectangular. The protrusion 24 protrudes from the first flat surface 21 in the short direction D2. The protrusion 24 protrudes, for example, from an end of the first flat surface 21 in the longitudinal direction D1. The protrusion 24 has two parallel surfaces 24a along the protruding direction of the protrusion 24. The illustrated two surfaces 24a are parallel to the short direction D2. One surface 24a is continuous with the second flat surface 22. The value of the width Wd4 of the protrusion 24 is the same as or slightly larger than the value of the width Wd0 of the groove 150.
[0051] The wire harness 1 having the resin member 2L is arranged while the protruding portion 24 of the resin member 2L is inserted into the groove portion 150. The protruding portion 24 is sandwiched and held by a pair of ribs 140. The main body 20 is arranged outside the groove portion 150 along the extending direction of the groove portion 150.
[0052] The main body 20 of the resin member 2L has a longitudinal direction D1 and a lateral direction D2. The resin member 2L is fixed to the groove portion 150 with one first flat surface 21 facing the wiring surface 110, as shown in FIG.
[0053] The width Wd1 of the main body 20 of the resin member 2 is determined depending on the number of electric wires W held by the main body 20 and the diameter of the electric wires W. In contrast, the value of the width Wd0 of the groove portion 150 is determined depending on the design requirements of the vehicle 100. The resin member 2L can be fixed to the member 120 even if the width Wd0 of the groove portion 150 is smaller than the width Wd1 of the main body 20.
[0054] Furthermore, the resin member 2L having the protrusion 24 allows the wiring space to be made thinner in the depth direction of the groove 150. For example, when inserting the main body 20 into the groove 150, the second flat surface 22 is inserted into the groove 150 with the second flat surface 22 facing the wiring surface 110. In this case, the width Wd2 of the main body 20 in the short direction D2 is determined depending on the width Wd0 of the groove 150. Furthermore, the width Wd1 in the longitudinal direction D1 is determined depending on the width Wd2. As a result, the dimension of the resin member 2 in the depth direction of the groove 150 may become large. On the other hand, the resin member 2L having the protrusion 24 allows the widths Wd1 and Wd2 of the main body 20 to be determined without being restricted by the width Wd0 of the groove 150.
[0055] The wire harness 1 may have a plurality of resin members having different cross-sectional shapes. The wire harness 1 shown in Fig. 15 has three types of resin members 2A, 2M, and 200 having different cross-sectional shapes.
[0056] The resin members 2A and 2M are the resin member 2 according to this embodiment. The main body 20 of the resin member 2A has a rectangular cross-sectional shape as shown in FIG. 2. As shown in FIG. 16, the main body 20 of the resin member 2M has a trapezoidal cross-sectional shape. The main body 20 has a longitudinal direction D1 and a lateral direction D2. The main body 20 of the resin member 2M has two first flat surfaces 21 and two side surfaces 25.
[0057] The two first planes 21 correspond to the bases of the trapezoid. In the illustrated resin member 2M, the direction of the bases is the longitudinal direction D1. The two side surfaces 25 correspond to the oblique sides of the trapezoid. The two side surfaces 25 may have the same inclination angle θ with respect to the first plane 21, or may have different inclination angles θ.
[0058] The resin member 200 has a cylindrical shape along the axial direction X. That is, the shape of the resin member 200 in a plane perpendicular to the axial direction X is circular. The cross-sectional shape of the resin member 200 may be elliptical. The shapes of the resin members 2A, 2M, and 200 are selected according to the cross-sectional shape of the route at each position of the wiring route.
[0059] As described above, the wire harness 1 of this embodiment includes a plurality of electric wires W and the resin member 2. The resin member 2 has one main body 20 that covers the plurality of electric wires W and is a member that is molded integrally with the plurality of electric wires W. The cross-sectional shape of the main body 20 in a plane perpendicular to the axial direction X of the electric wires W is a flat shape having a longitudinal direction D1 and a lateral direction D2. The main body 20 has at least one of a first plane 21 that is a plane extending in the longitudinal direction D1 and a second plane 22 that is a plane extending in the lateral direction D2.
[0060] When the main body 20 has the first flat surface 21, the wire harness 1 can be routed with the first flat surface 21 of the main body 20 facing the routing surface 110. This makes it possible to reduce the thickness of the routing space of the wire harness 1 in a direction perpendicular to the routing surface 110. When the main body 20 has the second flat surface 22, the wire harness 1 can be routed with the second flat surface 22 of the main body 20 facing the routing surface 110. This makes it possible to reduce the thickness of the routing space of the wire harness 1 in the direction along the routing surface 110. Therefore, the wire harness 1 of this embodiment achieves a thinner routing space.
[0061] The resin member 2 functions as an exterior member that protects the plurality of electric wires W. When the resin member 2 is assembled into the groove portion 150 or the like, the resin member 2 functions as a fixing member that fixes the plurality of electric wires W to the wiring surface 110. The resin member 2 also functions as a bundling member that bundles the plurality of electric wires W.
[0062] The cross-sectional shape of the main body 20 is, for example, rectangular. The plurality of electric wires W may be arranged along the longitudinal direction D1 inside the main body 20. By arranging the plurality of electric wires W along the longitudinal direction D1, the resin member 2 can be made thinner.
[0063] The main body 20 may have chamfered corners on both sides of a flat surface. A main body 20 having a chamfered shape can facilitate the insertion of the main body 20 into the groove 150.
[0064] The resin member 2 may have a protruding portion 24 protruding from one flat surface of the main body 20. The protruding portion 24 has, for example, two parallel surfaces 24a along the protruding direction of the protruding portion 24. The resin member 2 having the protruding portion 24 makes it possible to set the dimensions of the main body 20 without being restricted by the width Wd0 of the groove portion 150.
[0065] The wire harness 1 has, for example, a plurality of resin members 2. In this case, a plurality of electric wires W are exposed between two adjacent resin members 2. The wire harness 1 in which the electric wires W are exposed between the two resin members 2 can be easily deformed according to the wiring route.
[0066] Some of the electric wires W4 among the plurality of electric wires W may be drawn out as a branch wire from between two adjacent resin members 2G, 2H. Since the electric wires W on both sides of the branch portion are held by the resin member 2, the shape of the wire harness 1 is likely to be stable.
[0067] The cross-sectional shapes of the multiple resin members 2 in a plane perpendicular to the axial direction X of the electric wires W may be the same. This allows a common mold to be used to mold the resin members 2, thereby reducing costs. For example, when some electric wires W4 are drawn out as branch wires from between two resin members 2G, 2H, the cross-sectional shapes of the two resin members 2G, 2H may be the same.
[0068] The plurality of electric wires W may include electric wires W of the first sub-harness S1 and electric wires W of the second sub-harness S2. In this case, one resin member 2 is molded for both the first sub-harness S1 and the second sub-harness S2. The resin member 2 functions as a bundling member that bundles the two sub-harnesses S1 and S2 together.
[0069] The number of resin members 2 included in the wire harness 1 may be one. For example, the wire harness 1 may include an elongated resin member 2 extending along the axial direction X of the electric wires W. In one resin member 2, the width Wd1 and the width Wd2 may vary depending on the position in the axial direction X. For example, when the width Wd0 of the groove portion 150 changes midway along the wiring path, the main body 20 of the resin member 2 may have a wide portion and a narrow portion.
[0070] When the resin member 2 has a protruding portion 24, one resin member 2 may have a plurality of protruding portions 24. For example, one resin member 2 may have a plurality of protruding portions 24 aligned in the extension direction of the groove portion 150.
[0071] The insertion target of the protrusion 24 may be a recess provided in the member 120. For example, the member 120 may have a plurality of recesses arranged at intervals along the routing path of the wire harness 1. In this case, the plurality of protrusions 24 may be inserted into the corresponding recesses.
[0072] When the main body 20 of the resin member 2 has two first flat surfaces 21, the two first flat surfaces 21 do not have to be parallel. For example, when the resin member 2 is arranged with the first flat surface 21 facing the routing surface 110, it is conceivable that there is a limitation in the routing space in a direction perpendicular to the routing surface 110. In this case, one first flat surface 21 may be inclined with respect to the other first flat surface 21. Similarly, when the main body 20 of the resin member 2 has two second flat surfaces 22, the two second flat surfaces 22 do not have to be parallel.
[0073] The object into which the resin member 2 is inserted is not limited to the groove 150 formed between the ribs 140. For example, the member 120 may be formed with a recess or groove into which the resin member 2 can be inserted. Furthermore, the resin member 2 can be inserted between two opposing surfaces. For example, the resin member 2 may be inserted into a gap provided between two members.
[0074] The wire harness 1 disclosed in the above embodiment can be fixed to the vehicle 100 by inserting the resin member 2 into the recess or the opposing surface. Since drilling or threading for fixing is not required in the vehicle 100, the manufacturing cost on the vehicle side is reduced.
[0075] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]
[0076] 1: Wire harness 2: Resin material 11: Curved section 20: Main body, 21: First flat surface, 22: Second flat surface, 23: Chamfered portion 24:Protrusion 100: Vehicle, 110: Wiring surface 120: member, 120A: first member, 120B: second member, 120C: third member 120D: Fourth member 130: Plate portion, 140: Rib 150: Groove, 150A: First groove, 150B: Second groove, 150C: Third groove 150D: Fourth groove 160: Peripheral parts D1: Longitudinal direction, D2: Shortitudinal direction E1: First direction, E2: Second direction, E3: Third direction S1: First sub-harness, S2: Second sub-harness W: Electric wire, W1: Inner wire, W2: Outer wire Wd0: width of groove, Wd1: width of first plane, Wd2: width of second plane X: Axial direction, Z: Vehicle vertical direction
Claims
1. A plurality of wires; a resin member having a main body that covers the plurality of electric wires and is molded integrally with the plurality of electric wires; Equipped with a cross-sectional shape of the main body in a plane perpendicular to an axial direction of the electric wire is a flat shape having a longitudinal direction and a lateral direction, The main body has at least one of a first plane extending in the longitudinal direction and a second plane extending in the lateral direction. A wire harness characterized by:
2. The cross-sectional shape of the body is rectangular, The plurality of electric wires are arranged inside the main body along the longitudinal direction. The wire harness according to claim 1 .
3. In the main body, corners on both sides of one flat surface are chamfered. The wire harness according to claim 1 .
4. the resin member has a protruding portion protruding from one flat surface of the main body, The protrusion has two parallel surfaces along the protruding direction of the protrusion. The wire harness according to claim 1 .
5. a plurality of the resin members; A plurality of the electric wires are exposed between two adjacent resin members. The wire harness according to claim 1 .
6. Some of the plurality of electric wires are drawn out as branch wires from between two adjacent resin members. The wire harness according to claim 5 .
7. The cross-sectional shapes of the plurality of resin members in a plane perpendicular to the axial direction of the electric wire are the same. The wire harness according to claim 5 .
8. the plurality of electric wires include electric wires of a first sub-harness and electric wires of a second sub-harness, One resin member is molded for both the first sub-harness and the second sub-harness. The wire harness according to claim 1 .
Citation Information
Patent Citations
JP1977137084U
Flat harness of automobile or the like and manufacture thereof
JP1988164110A
Wiring harness
JP1989031309A
Wire harness module, manufacturing method of the wire harness module, and attachment structure for vehicle body
JP2010259297A
Wire harness
JP2023066801A