Wire harness

Abstract

This wire harness (WH) comprises: a cable routing material (10) having a bridging part (11) bridged between a vehicle body (100) and a slide door (200); a rotary slider (20); and a biasing member (30). The bridging part (11) is held so as to be movable between a spread position (P11) corresponding to a fully open position (P1) and a cable routing path restriction position (P12) corresponding to a fully closed position (P2) with respect to the vehicle body (100) and the slide door (200), and in a state of being positioned at the cable routing path restriction position (P12), an extra length portion (12) is generated with respect to a state of being positioned at the spread position (P11). The biasing member (30) restricts the cable routing path of the extra length portion (12) by applying a rotational biasing force to the rotary slider (20) in a direction in which the bridging part (11) held by the rotary slider (20) is positioned on the cable routing path restriction position (P12) side.

Description

Wire harness

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

[0002] As a technique related to a conventional wire harness, for example, Patent Document 1 discloses a wire harness bridged between a vehicle body and a sliding door with a corrugated tube externally mounted. In this Patent Document 1, a holding plate that contacts the corrugated tube is disposed in a moving region of the wire harness that moves while curving upward following the opening and closing operation of the sliding door, and the proximal end of the holding plate is rotatably supported via a torsion coil spring by a support shaft, and the holding plate is urged upward by the torsion coil spring to prevent the hanging down of the extra-length portion of the wire harness that curves upward.

[0003] Japanese Patent Application Laid-Open No. 2010-163116

[0004] By the way, in the above conventional wire harness, for example, although the hanging down of the extra-length portion of the wire harness can be suppressed by the biasing force of the return coil spring, there is still room for further improvement in more appropriately holding the extra-length portion.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide a wire harness capable of more appropriately holding the extra-length portion of the crossing portion.

[0006] To achieve the above objective, the wire harness according to the present invention comprises a cable harness having a connecting portion that is stretched between the vehicle body and the sliding door along an arm member of a link mechanism that connects the vehicle body to the sliding door so that it can be opened and closed between a fully open position and a fully closed position; a rotary slider that holds the connecting portion so that it can move relative to the arm member along the extending direction of the connecting portion and is supported on the arm member so that it can rotate together with the connecting portion while holding the connecting portion, and a biasing member that applies a rotational biasing force to the rotary slider, wherein the connecting portion is held so as to be movable between the vehicle body and the sliding door, an deployed position corresponding to the fully open position and a cable routing restriction position corresponding to the fully closed position, and when positioned in the cable routing restriction position, an excess length is generated compared to when positioned in the deployed position, and the biasing member restricts the cable routing of the excess length by applying a rotational biasing force to the rotary slider in the direction that the connecting portion held by the rotary slider is positioned towards the cable routing restriction position.

[0007] In the wire harness according to the present invention, the biasing member applies a rotational biasing force to the rotating slider in a direction that positions the connecting portion held by the rotating slider toward the routing path restriction position, thereby restricting the routing path of the excess length portion. With this configuration, the wire harness can restrict the routing path of the excess length portion of the connecting portion by the rotational biasing force applied to the rotating slider from the biasing member, thereby improving the appearance of the connecting portion when the sliding door is in the fully closed position, and suppressing vibrations and noises in the connecting portion when the sliding door is in the fully closed position and the vehicle is in motion. As a result, the wire harness can more properly hold the excess length portion of the connecting portion.

[0008] Figure 1 is an exemplary plan view of a wire harness according to an embodiment, showing the sliding door in the fully open position. Figure 2 is an exemplary plan view of a wire harness according to an embodiment, showing the sliding door in the fully closed position. Figure 3 is an exemplary perspective view of a wire harness according to an embodiment, showing the sliding door in the fully open position. Figure 4 is an exemplary perspective view of a wire harness according to an embodiment, showing the sliding door in the fully closed position. Figure 5 is an exemplary perspective view of a rotary slider of a wire harness according to an embodiment. Figure 6 is an exemplary exploded perspective view of a rotary slider of a wire harness according to an embodiment. Figure 7 is an exemplary cross-sectional view of a crossover portion of a wire harness according to an embodiment.

[0009] Embodiments of the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below. Furthermore, the components in the embodiments described below include those that are easily substituted or substantially identical to those that are easily substituted by those skilled in the art. In this specification, ordinal numbers are used solely to distinguish parts, components, locations, directions, etc., and do not indicate order or priority.

[0010] [Embodiment] Figure 1 is a plan view of a wire harness WH according to an embodiment, showing the sliding door 200 in the fully open position P1. The wire harness WH of this embodiment shown in Figure 1 is incorporated into a vehicle such as an automobile. Here, the wire harness WH is, for example, a bundle of wiring materials 10 used for power supply and signal communication to connect various devices mounted on the vehicle, and the wiring materials 10 are connected to each device with connectors or the like. The wire harness WH of this embodiment includes, for example, wiring materials 10 having a connecting portion 11 that spans between the vehicle body 100 and the sliding door 200, a rotating slider 20 that holds the connecting portion 11, and a biasing member 30 that applies a rotational biasing force to the rotating slider 20. The wire harness WH may also be configured to include protectors, fasteners, grommets, etc.

[0011] In the following explanation, of the three intersecting directions, the first direction will be referred to as the "vehicle longitudinal direction X," the second direction as the "vehicle width direction Y," and the third direction as the "vehicle height direction Z." Here, the vehicle longitudinal direction X, the vehicle width direction Y, and the vehicle height direction Z are approximately orthogonal to each other. The vehicle longitudinal direction X typically corresponds to the longitudinal direction of the vehicle (vehicle body 100 and sliding door 200), the vehicle width direction Y typically corresponds to the width direction of the vehicle, and the vehicle height direction Z typically corresponds to the vertical direction of the vehicle. In the following explanation, unless otherwise specified, each direction used refers to the direction when the wire harness WH is assembled to the vehicle (vehicle body 100 and sliding door 200).

[0012] Figure 2 is a plan view of the wire harness WH, showing the sliding door 200 in the fully closed position P2. As shown in Figures 1 and 2, the sliding door 200 is connected to the vehicle body 100 via the arm member 71 of the link mechanism 70 so as to be able to open and close between a fully open position P1 (see Figure 1) and a fully closed position P2 (see Figure 2). The fully open position P1 is the position in which the sliding door 200 fully opens the vehicle's entrance / exit opening in the vehicle width direction Y, and the fully closed position P2 is the position in which the sliding door 200 fully closes the entrance / exit opening. The sliding door 200 is configured to slide along the vehicle's longitudinal direction X between the fully open position P1 and the fully closed position P2 by the arm member 71 of the link mechanism 70.

[0013] The link mechanism 70 has, for example, an arm member 71 at one end pivotally supported on the vehicle body 100 via a vehicle body-side rotating shaft 72 that extends along the vehicle height direction Z. A first arm holding member 73 is fixed to the vehicle body 100, which holds one end of the arm member 71 so that it can rotate around the rotation center of the vehicle body-side rotating shaft 72. The link mechanism 70 also has, for example, a door-side rotating shaft 74 that extends along the vehicle height direction Z, which pivotally supports the other end of the arm member 71 on the sliding door 200. A second arm holding member 75 is fixed to the sliding door 200, which holds the other end of the arm member 71 so that it can rotate around the rotation center of the door-side rotating shaft 74.

[0014] The arm member 71 is composed of, for example, a bottom wall 71a and a pair of side walls 71b. The bottom wall 71a has a predetermined height (width) along the vehicle height direction Z and extends between the vehicle body side rotation axis 72 and the door side rotation axis 74. The pair of side walls 71b (see Figure 3) are provided at both ends of the bottom wall 71a in the vehicle height direction Z, protruding toward the cable guide 10 side and extending between the vehicle body side rotation axis 72 and the door side rotation axis 74. The arm member 71 has a substantially U-shaped cross-section that is open toward the cable guide 10 side by the bottom wall 71a and the pair of side walls 71b. In the arm member 71, the base portion 21 (see Figure 5) of the rotary slider 20, which will be described later, is fixed to the recess partitioned by the bottom wall 71a and the pair of side walls 71b.

[0015] Here, the vehicle is equipped with a power supply device for the sliding door, which supplies power from a power source (such as a secondary battery) on the vehicle body 100 side to the electrical connection target on the sliding door 200 side. The electrical connection target is a component installed on the sliding door 200, such as electrical components or switches. Electrical components of the sliding door 200 refer to, for example, a drive unit for operating the power window or a speaker. Furthermore, switches of the sliding door 200 refer to switches for operating the power window, switches for operating the power seat, etc. In this power supply device for the sliding door, the wire harness WH is responsible for the electrical connection between the power source on the vehicle body 100 side and the electrical connection target on the sliding door 200 side. In other words, the power supply device for the sliding door is equipped with the wire harness WH of this embodiment.

[0016] Figure 3 is a perspective view of the wire harness WH with the sliding door 200 in the fully open position P1, and Figure 4 is a perspective view of the wire harness WH with the sliding door 200 in the fully closed position P2. As shown in Figures 3 and 4, the wire harness WH includes, for example, a wiring member 10, a rotating slider 20, a biasing member 30, a vehicle body side retaining member 50, and a door side retaining member 60.

[0017] The wiring material 10 is electrically connected at one end to a power source on the vehicle body 100 side, and at the other end to an object to be electrically connected on the sliding door 200 side. The wiring material 10 is composed of, for example, a bundle of multiple electric wires W and a corrugated tube C as a cylindrical outer material that covers the bundle of electric wires. When the wiring material 10 is installed with the corrugated tube C attached to the bundle of electric wires, it has relatively high flexibility and good bendability. In this embodiment, when the wiring material 10 is installed with the corrugated tube C attached to the bundle of electric wires, if an external force is applied to bend it from its natural state (approximately straight state) without any external force applied, the bent portion undergoes elastic deformation, and an elastic reaction force is generated in the bent portion, causing it to try to return to its original state.

[0018] Furthermore, the cable routing member 10 includes, for example, a connecting section 11, a vehicle body side cable routing section 13, and a door side cable routing section 14. The connecting section 11 is the portion of the cable routing member 10 that spans between the vehicle body 100 and the sliding door 200 along the arm member 71 of the link mechanism 70. The connecting section 11 is composed of the above-mentioned plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W. The connecting section 11 is positioned, for example, offset from the arm member 71 to one end side in the vehicle longitudinal direction X (left side in Figures 3 and 4) and extends along the arm member 71. One end 11a in the longitudinal direction of the connecting section 11 is held by the vehicle body side holding member 50, and the other end 11b in the longitudinal direction is held by the door side holding member 60. The connecting section 11 is held by the vehicle body-side holding member 50 and the door-side holding member 60 in a state that allows it to follow the movement (opening and closing) of the sliding door 200 between the fully open position P1 and the fully closed position P2.

[0019] The vehicle body side wiring section 13 is the portion that is routed into the wiring space on the vehicle body 100 side, beyond one end 11a in the longitudinal direction of the connecting section 11. The vehicle body side wiring section 13 may be composed of, for example, the above-mentioned plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W, or it may be composed of the plurality of electric wires W alone. The vehicle body side wiring section 13 is drawn out from the vehicle body side holding member 50 along the vehicle width direction Y and extends toward the power supply on the vehicle body 100 side and is electrically connected to the power supply.

[0020] The door-side wiring section 14 is the portion that is routed into the wiring space on the sliding door 200 side, beyond the other longitudinal end 11b of the connecting section 11. The door-side wiring section 14 may consist of, for example, the aforementioned plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W, or it may consist of only the plurality of electric wires W. The door-side wiring section 14 is drawn out from the door-side holding member 60 along the vehicle height direction Z and extends toward the object to be electrically connected on the sliding door 200 side, and is electrically connected to the object to be electrically connected.

[0021] The vehicle body-side holding member 50 holds one end 11a of the crossover portion 11 in the longitudinal direction. The vehicle body-side holding member 50 is positioned, for example, on the vehicle body 100, offset from the vehicle body-side rotation axis 72 (first arm holding member 73) of the link mechanism 70 towards one end in the vehicle longitudinal direction X (left side in Figures 3 and 4). The vehicle body-side holding member 50 is composed of, for example, a base portion 51, a fan portion 52, and a mounting portion 53. The base portion 51 is, for example, configured as a substantially rectangular cylindrical shape with an insertion space portion that opens along the vehicle width direction Y. One end 11a of the crossover portion 11 in the longitudinal direction is inserted into the base portion 51 along the vehicle width direction Y. The base portion 51 is also provided with a through hole through which the vehicle body-side routing portion 13 is pulled out along the vehicle width direction Y. In this embodiment, for example, the annular recess of the corrugated tube C that constitutes one end 11a of the crossover portion 11 in the longitudinal direction is engaged with the inner circumferential surface of the through hole. This restricts the movement of the connecting portion 11 along its longitudinal direction with respect to the vehicle body-side holding member 50 at one end 11a of the connecting portion 11 in the longitudinal direction.

[0022] The fan-shaped portion 52 is provided at the end of the base portion 51 opposite to the through hole from which the vehicle body side wiring portion 13 is pulled out, in the vehicle width direction Y. The fan-shaped portion 52 is formed in a fan shape when viewed, for example, from the vehicle height direction Z (see Figure 2). Inside the fan-shaped portion 52, there is an opening 52a that communicates with the insertion space portion of the base portion 51 and widens in a fan shape (trumpet shape) toward the sliding door 200 side in the vehicle width direction Y. The opening 52a allows, for example, the swinging of the connecting portion 11 around a rotation center extending along the vehicle height direction Z, following the movement (opening and closing) of the sliding door 200 between the fully open position P1 and the fully closed position P2. The mounting portion 53 protrudes in a plate shape from the base portion 51 along the vehicle longitudinal direction X. The mounting portion 53 is provided with a mounting hole to which a fastening member that fastens the vehicle body side holding member 50 to the vehicle body 100 is attached.

[0023] The door-side retaining member 60 holds the other end 11b in the longitudinal direction of the connecting portion 11. The door-side retaining member 60 is positioned, for example, in a sliding door 200, offset from the door-side rotation axis 74 (second arm retaining member 75) of the link mechanism 70 to one end in the vehicle longitudinal direction X (left side in Figures 3 and 4). The door-side retaining member 60 is composed of, for example, a bottom wall portion 61, a pair of side wall portions 62, and a cylindrical portion 63. The bottom wall portion 61 is formed, for example, in the shape of a substantially rectangular plate extending along the sliding door 200. The bottom wall portion 61 is provided with mounting holes to which fastening members that fasten the door-side retaining member 60 and the sliding door 200 are attached. The pair of side wall portions 62 are provided at both ends of the bottom wall portion 61 in the vehicle height direction Z and protrude along the vehicle width direction Y. One of the pair of side wall portions 62 is provided with a through hole through which the door-side cable routing portion 14 is pulled out along the vehicle height direction Z.

[0024] The cylindrical portion 63 extends cylindrically between a pair of side wall portions 62. The cylindrical portion 63 is provided with a through hole through which the other end 11b in the longitudinal direction of the connecting portion 11 passes. In this embodiment, for example, the annular recess of the corrugated tube C that constitutes the other end 11b in the longitudinal direction of the connecting portion 11 engages with the inner circumferential surface of the through hole. This restricts the movement of the other end 11b in the longitudinal direction of the connecting portion 11 relative to the door-side holding member 60. The door-side cable routing portion 14 is connected to the other end 11b in the longitudinal direction of the connecting portion 11 via the internal space of the cylindrical portion 63.

[0025] In the wire harness WH of this embodiment, the shortest path connecting the vehicle body-side retaining member 50 and the door-side retaining member 60 differs depending on the fully open position P1 and the fully closed position P2 of the sliding door 200 relative to the vehicle body 100. Therefore, in the wire harness WH, when the shortest path between the vehicle body-side retaining member 50 and the door-side retaining member 60 is at its longest, the connecting portion 11 is routed between the vehicle body-side retaining member 50 and the door-side retaining member 60 with virtually no slack, and the path length in this state is set as the length of the connecting portion 11.

[0026] Here, the path length of the connecting portion 11, which is routed without slack between the vehicle body-side retaining member 50 and the door-side retaining member 60, is shorter when the shortest path between the vehicle body-side retaining member 50 and the door-side retaining member 60 is at its shortest, i.e., when the sliding door 200 is at its fully closed position P2 (see Figure 2), compared to when the shortest path between the vehicle body-side retaining member 50 and the door-side retaining member 60 is at its longest, i.e., when the sliding door 200 is at its fully open position P1 (see Figure 1). Therefore, in the connecting portion 11, the surplus when the shortest path between the vehicle body-side retaining member 50 and the door-side retaining member 60 is at its shortest, i.e., when the sliding door 200 is at its fully closed position P2, appears as the excess length portion 12. In other words, the connecting portion 11 is held so as to be movable between the vehicle body 100 and the sliding door 200, between an unfolded position P11 corresponding to the fully open position P1 and a cable routing restriction position P12 corresponding to the fully closed position P2, and when positioned in the cable routing restriction position P12, an excess length portion 12 is generated compared to when positioned in the unfolded position P11.

[0027] Figure 5 is a perspective view of the rotary slider 20 of the wire harness WH, and Figure 6 is an exploded perspective view of the rotary slider 20. As shown in Figures 5 and 6, the rotary slider 20 restricts the routing path of the excess length portion 12 of the connecting portion 11 described above. The rotary slider 20 is composed of, for example, a base portion 21, a rotating portion 22, a band portion 23, and a plurality of locking portions 24, 25. The base portion 51 is the part of the rotary slider 20 that is fixed to the arm member 71. The base portion 51 has, for example, a first component 21A and a second component 21B which is integrated with the first component 21A via a locking portion 24.

[0028] The first part 21A is composed of, for example, a mounting portion 21a, a side wall portion 21b, and a connecting portion 21c. The mounting portion 21a is the part of the first part 21A that is attached to the arm member 71. The mounting portion 21a is provided with a mounting hole 21e into which a fastening member such as a bolt that fastens the base portion 21 and the arm member 71 is inserted. The side wall portion 21b is the part of the first part 21A that supports the mounting portion 21a. In this embodiment, the first part 21A is provided with a pair of side wall portions 21b spaced apart from each other along the circumferential direction of the rotation center Ax, and the mounting portion 21a is provided on the outer surface of one of the pair of side wall portions 21b. The pair of side wall portions 21b are formed in an arc shape along the circumferential direction of the rotation center Ax, for example. The connecting portion 21c is the part of the first part 21A that connects the pair of side wall portions 21b. The connecting portion 21c is formed, for example, in an annular shape along the circumferential direction of the rotation center Ax and is connected to the inner surfaces of the pair of side wall portions 21b. The connecting portion 21c is also provided with a central hole that supports the shaft portion 22c of the rotating portion 22 so that it can rotate around the rotation center Ax.

[0029] The second part 21B is composed of, for example, a case portion 21d. The case portion 21d is the part of the second part 21B that houses the side wall portion 21b of the first part 21A, the connecting portion 21c, the biasing member 30, etc. The case portion 21d is formed in a bottomed cylindrical shape having, for example, a cylindrical peripheral wall portion along the outer surface of the side wall portion 21b and a bottom wall portion that covers one open end of the peripheral wall portion. The lock portion 24 is composed of, for example, a claw-shaped male lock 24a provided on the outer surface of the side wall portion 21b and a locking hole-shaped female lock 24b provided on the outer surface of the peripheral wall portion in the case portion 21d. When the male lock 24a is inserted into the female lock 24b, it has a locking surface that faces a locking surface provided on the peripheral edge of the female lock 24b along the axial direction of the rotation center Ax. The locking portion 24 locks (integrates) the first part 21A and the second part 21B by locking the locking surface of the male lock 24a and the locked surface of the female lock 24b along the axial direction. In this embodiment, a pair of locking portions 24 are provided on the side wall portion 21b of the first part 21A and the case portion 21d of the second part 21B, spaced apart from each other along the circumferential direction of the rotation center Ax.

[0030] The rotating part 22 is a portion that is supported on the base part 21 so as to be rotatable around the rotation center Ax. The rotating part 22 is composed of, for example, a main body part 22a, a recess 22b, and a shaft part 22c. The main body part 22a is formed in a substantially cylindrical shape along the circumferential direction of the rotation center Ax. The main body part 22a is inserted inside the side wall part 21b of the base part 21 and is supported on the inside of the side wall part 21b so as to be rotatable around the rotation center Ax. The recess 22b is the part of the rotating part 22 that holds the connecting part 11. The recess 22b is recessed from one end face (upper surface) of the main body part 22a along the axial direction of the rotation center Ax. The recess 22b also penetrates the main body part 22a along the extending direction of the connecting part 11 and holds the connecting part 11 so as to be relatively movable along the extending direction of the connecting part 11. The width of the recess 22b is formed to be approximately the same as or slightly larger than the diameter of the connecting portion 11. In this embodiment, for example, as the connecting portion 11 moves relative to the recess 22b along the extending direction, the inner surface of the recess 22b and the outer surface of the connecting portion 11 slide against each other. The shaft portion 22c is provided on the other end face (bottom surface) of the main body portion 22a, that is, the surface opposite to the recess 22b in the axial direction of the rotation center Ax. The shaft portion 22c protrudes from the main body portion 22a along the axial direction of the rotation center Ax and is inserted into the central hole of the connecting portion 21c described above. The diameter of the shaft portion 22c is set to be smaller than the diameter of the main body portion 22a.

[0031] The band portion 23 is the part that covers the open end 22b1 of the recess 22b. The band portion 23 is composed of, for example, a restricting portion 23a and a pair of mounting pieces 23b. The restricting portion 23a extends, for example, in a direction intersecting the extending direction of the connecting portion 11. By covering the open end 22b1 of the recess 22b, the restricting portion 23a restricts the movement (disengagement) of the connecting portion 11 along the axial direction of the rotation center Ax relative to the recess 22b. The pair of mounting pieces 23b protrude from both ends of the restricting portion 23a along the axial direction of the rotation center Ax. The pair of mounting pieces 23b are superimposed on the outer surface of the side wall portion 21b of the base portion 21. The locking portion 25 is composed of, for example, a claw-shaped male lock 25a provided on the outer surface of the side wall portion 21b and a locking hole-shaped female lock 25b provided on the outer surface of the mounting piece 23b. When inserted into the female lock 25b, the male lock 25a has a locking surface provided on the periphery of the female lock 25b and a locking surface facing the rotation center Ax along the axial direction. The locking portion 25 locks (integrates) the band portion 23 to the base portion 21 by locking the locking surface of the male lock 25a and the locking surface of the female lock 25b along the axial direction. In this embodiment, a pair of locking portions 25 are provided on the side wall portion 21b of the base portion 21 and the mounting piece portion 23b of the band portion 23. Thus, in this embodiment, the band portion 23 is detachably attached to the base portion 21.

[0032] The biasing member 30 restricts the routing path of the excess length portion 12 of the connecting portion 11 by applying a rotational biasing force to the rotating slider 20. The biasing member 30 is composed of, for example, a torsion spring, and is interposed between the base portion 21 and the rotating portion 22, applying a rotational biasing force to the rotating portion 22 relative to the base portion 21. The biasing member 30 is housed in the case portion 21d with, for example, one end fixed to the base portion 21 and the other end fixed to the rotating portion 22. In this embodiment, for example, the biasing member 30 is configured to apply a rotational biasing force to the rotating slider 20 (rotating part 22) in the direction that the connecting part 11 held by the rotating slider 20 is positioned toward the cable routing restriction position P12, i.e., clockwise around the rotation center Ax in Figures 1 and 2, when the connecting part 11 is positioned in the deployed position P11 (see Figure 1) and when it is positioned in the cable routing restriction position P12 (see Figure 2).

[0033] In this embodiment, when the connecting portion 11 is positioned at the deployed position P11 (see Figure 1), the connecting portion 11 is routed along the shortest path without slack between the vehicle body-side holding member 50 and the door-side holding member 60. Therefore, the tension of the connecting portion 11 causes it to extend substantially parallel to the arm member 71, resisting the rotational biasing force of the biasing member 30. On the other hand, when the connecting portion 11 is positioned at the routing path restriction position P12 (see Figure 2), a slack excess portion 12 is generated in the connecting portion 11 between the vehicle body-side holding member 50 and the door-side holding member 60. As a result, the entire connecting portion 11, including the excess portion 12, is held in an S-shaped curved state by the rotational biasing force of the biasing member 30 applied to the rotary slider 20. In other words, in this embodiment, the rotational biasing force of the biasing member 30 in the clockwise direction of the rotation center Ax in Figures 1 and 2 restricts the routing path of the excess length portion 12 of the connecting portion 11 held by the rotating slider 20.

[0034] In this embodiment, as the sliding door 200 moves from the fully open position P1 (see Figure 1) to the fully closed position P2 (see Figure 2), the connecting portion 11 moves relative to the rotating slider 20 so as to move toward the vehicle body 100 side, generating an excess length portion 12. The rotational biasing force of the biasing member 30 restricts the rotation of the rotating slider 20 toward the cable routing restriction position P12. On the other hand, as the sliding door 200 moves from the fully closed position P2 (see Figure 2) to the fully open position P1 (see Figure 1), the connecting portion 11 moves relative to the rotating slider 20 so as to move toward the vehicle body 100 side so as to move toward the rotating slider 20 side, eliminating the excess length portion 12. It moves toward the deployed position P11 side, causing the rotating slider 20 to rotate in the opposite direction against the rotational biasing force of the biasing member 30.

[0035] Figure 7 is a cross-sectional view of the connecting section 11 of the wire harness WH. As shown in Figure 7, the connecting section 11 is composed of, for example, a plurality of electric wires W and a corrugated tube C that surrounds the plurality of electric wires W. Each of the plurality of electric wires W extends linearly along the longitudinal direction of the connecting section 11 and is formed to extend with approximately the same diameter in that longitudinal direction (extension direction). The electric wire W consists of a conductor part (core wire) made of a plurality of conductive metal strands, the outside of which is covered with an insulating coating part. For example, the cross-sectional shape of the core wire of the electric wire W is formed to be approximately circular, and the cross-sectional shape of the insulating coating part is formed to be approximately annular, so that the overall cross-sectional shape is approximately circular.

[0036] The corrugated tube C is formed in a flexible cylindrical (tubular) shape using, for example, an insulating resin material. Multiple electric wires W are inserted through the corrugated tube C, and the outer circumference of the multiple electric wires W is covered and protected. The corrugated tube C is formed in a bellows shape with, for example, annular recesses formed on its outer surface, and multiple annular recesses provided along the longitudinal direction of the connecting portion 11. The corrugated tube C is also formed in a vertically elongated flat shape along the vehicle height direction Z. This suppresses sagging of the corrugated tube C that constitutes the connecting portion 11 (excess length portion 12) along the vehicle height direction Z.

[0037] As described above, in the wire harness WH of this embodiment, the biasing member 30 applies a rotational biasing force to the rotating slider 20 in a direction that positions the connecting portion 11 held by the rotating slider 20 toward the wiring path restriction position P12, thereby restricting the wiring path of the excess length portion 12. With this configuration, the wire harness WH can restrict the wiring path of the excess length portion 12 of the connecting portion 11 by the rotational biasing force applied to the rotating slider 20 from the biasing member 30, for example, thereby improving the appearance of the connecting portion 11 when the sliding door 200 is in the fully closed position P2, and suppressing the generation of vibrations and abnormal noises of the connecting portion 11 when the sliding door 200 is in the fully closed position P2 and the vehicle is in motion. As a result, the wire harness WH can hold the excess length portion 12 of the connecting portion 11 more appropriately.

[0038] Furthermore, in the wire harness WH of this embodiment, the rotary slider 20 holds the connecting portion 11 located at the wiring path regulating position P12 in an S-shaped curved state. With this configuration, the wire harness WH can hold the connecting portion 11 in a state in which multiple (two) curved portions are provided on the connecting portion 11, thereby allowing the excess length portion 12 of the connecting portion 11 to be held more appropriately.

[0039] Furthermore, in the wire harness WH of this embodiment, as the sliding door 200 moves from the fully open position P1 to the fully closed position P2, the crossover portion 11 moves relative to the rotating slider 20 so as to move toward the vehicle body 100 side, generating an excess length portion 12. The rotational biasing force of the biasing member 30 restricts the movement toward the wiring path restriction position P12 as the rotating slider 20 rotates. As the sliding door 200 moves from the fully closed position P2 to the fully open position P1, the excess length portion 12 is eliminated as the crossover portion moves relative to the rotating slider 20 so as to move toward the vehicle body 100 side so as to move toward the rotating slider 20 side, and the crossover portion moves toward the deployed position P11 side, rotating the rotating slider 20 in the opposite direction against the rotational biasing force of the biasing member 30. With this configuration, the wire harness WH can relatively easily be configured such that, for example, when the sliding door 200 is in the fully closed position P2, the rotational biasing force of the biasing member 30 restricts the excess length portion 12 of the connecting section 11 toward the wiring path restriction position P12 as the rotation of the rotating slider 20 occurs.

[0040] Furthermore, in the wire harness WH of this embodiment, the rotary slider 20 is configured to include a base portion 21 fixed to the arm member 71, a rotating portion 22 supported so as to be rotatable around a rotation center Ax relative to the base portion 21 and provided with a recess 22b for holding the connecting portion 11, and a band portion 23 detachably attached to the base portion 21 and covering the open end 22b1 of the recess 22b. With this configuration, the wire harness WH can, for example, relatively easily configure a rotary slider 20 that holds the connecting portion 11 so as to be movable relative to the connecting portion 11 along its extending direction, and that can rotate together with the connecting portion 11 around a rotation center Ax relative to the arm member 71 while holding the connecting portion 11.

[0041] Furthermore, in the wire harness WH of this embodiment, the biasing member 30 is interposed between the base portion 21 and the rotating portion 22 and is a torsion spring that imparts a rotational biasing force to the rotating portion 22 relative to the base portion 21. With this configuration, the wire harness WH can be configured relatively easily to include a biasing member 30 that imparts a rotational biasing force to the rotating portion 22 (rotating slider 20) by a torsion spring interposed between the base portion 21 and the rotating portion 22.

[0042] In this embodiment, the connecting section 11 (wiring material 10) is exemplified as being composed of a plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W. However, the embodiment is not limited to this example, and for example, the connecting section 11 (wiring material 10) may be composed of only a plurality of electric wires W. Also, in this embodiment, the rotary slider 20 is exemplified as being provided with a recess 22b in the rotating section 22 for holding the connecting section 11. However, the embodiment is not limited to this example, and for example, the rotating section 22 may be provided with a through hole that penetrates along the extending direction of the connecting section 11, and the connecting section 11 may be held (inserted) in the through hole.

[0043] Although embodiments of the present invention have been illustrated above, these embodiments are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, each configuration, shape, and other specifications (structure, type, direction, form, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be modified as appropriate.

[0044] 10 Cable routing member 11 Crossover section 12 Excess length section 20 Rotating slider 21 Base section 22 Rotating section 22b Recess 23 Band section 30 Biasing member 70 Link mechanism 71 Arm member 100 Vehicle body 200 Sliding door P1 Fully open position P2 Fully closed position P11 Deployed position P12 Cable routing restriction position Ax Rotation center W Electric wire X Vehicle front-rear direction Y Vehicle width direction Z Vehicle height direction

Claims

1. A wire harness comprising: a cable member having a connecting portion that spans between the vehicle body and the sliding door along an arm member of a link mechanism that connects the vehicle body to the sliding door so that it can be opened and closed between a fully open position and a fully closed position; a rotary slider that holds the connecting portion so that it can move relative to the connecting portion along the extending direction of the connecting portion and is supported on the arm member so that it can rotate together with the connecting portion while holding the connecting portion around a center of rotation; and a biasing member that applies a rotational biasing force to the rotary slider, wherein the connecting portion is held so as to be movable between the vehicle body and the sliding door, an extended position corresponding to the fully open position and a cable routing restriction position corresponding to the fully closed position, and when positioned in the cable routing restriction position, an excess length is generated compared to when positioned in the extended position, and the biasing member applies a rotational biasing force to the rotary slider in the direction that the connecting portion held by the rotary slider is positioned towards the cable routing restriction position, thereby restricting the cable routing of the excess length.

2. The wire harness according to claim 1, wherein the rotating slider holds the crossover portion located at the cable routing restriction position in an S-shaped curved state.

3. The wire harness according to claim 1 or 2, wherein the connecting portion generates excess length as it moves relative to the rotating slider toward the vehicle body side as the sliding door moves from the fully open position to the fully closed position, is restricted toward the wiring path restriction position side as the rotating slider rotates due to the rotational biasing force of the biasing member, and the excess length is eliminated as it moves relative to the rotating slider side as the sliding door moves from the fully closed position to the fully open position, and moves toward the deployed position side as the rotating slider rotates in the opposite direction against the rotational biasing force of the biasing member.

4. The wire harness according to claim 1 or 2, wherein the rotating slider comprises a base portion fixed to the arm member, a rotating portion rotatably supported on the base portion around the rotation center and provided with a recess for holding the connecting portion, and a band portion detachably attached to the base portion and covering the open end of the recess.

5. The wire harness according to claim 4, wherein the biasing member is a torsion spring interposed between the base portion and the rotating portion, and imparts a rotational biasing force to the rotating portion relative to the base portion.

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