Wire harness

Abstract

A wire harness (WH) comprises: a wiring member (10) that has a crossover section (11) that spans between a vehicle body (100) and a sliding door (200) along an arm member (71) of a link mechanism (70) connecting the sliding door (200) to the vehicle body (100) such that the sliding door (200) can open and close between a fully-open position (P1) and a fully-closed position (P2); and a biasing member (20) that is provided between the crossover section (11) and the arm member (71), and that applies a biasing force to an excess length portion (12) of the crossover section (11) occurring when the sliding door (200) is positioned at least at the fully-closed position (P2). The biasing member (20) applies the biasing force so that a gap (G) between the crossover section (11) and the arm member (71) is wider in the state in which the sliding door (200) is positioned at the fully-closed position (P2) than in the state in which the sliding door (200) is positioned at the fully-open position (P1), when viewed from the vehicle height direction (Z).

Description

Wire harness

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

[0002] As an example of a conventional technology relating to wire harnesses, Patent Document 1 discloses a wire harness including a wiring material having a bridge portion that spans between the vehicle body and the sliding door, and a coil spring that applies a biasing force to the excess portion of the bridge portion when the sliding door is positioned at an intermediate position between a fully open position and a fully closed position relative to the vehicle body.

[0003] JP 2010-163116 A

[0004] However, the wire harness described in the above-mentioned Patent Document 1 has room for further improvement in terms of, for example, more appropriately holding the excess length of the crossover portion.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire harness that can more appropriately hold the excess length of the crossover portion.

[0006] In order to achieve the above object, the wire harness of the present invention comprises a wiring material having a bridge portion that is spanned between the vehicle body and the sliding door along an arm member of a link mechanism that connects the sliding door to the vehicle body so that the sliding door can be opened and closed between a fully open position and a fully closed position, and a biasing member that is provided between the bridge portion and the arm member and applies a biasing force to an excess portion of the bridge portion that is generated when the sliding door is positioned at least at the fully closed position, and the biasing member biases so that the gap between the bridge portion and the arm member is wider when the sliding door is positioned at the fully closed position than when it is positioned at the fully open position when viewed from the vehicle height direction.

[0007] In the wire harness according to the present invention, the biasing member biases the gap between the crossing portion and the arm member so that the gap is wider when the sliding door is in the fully closed position than when the sliding door is in the fully open position, as viewed from the vehicle height direction. With this configuration, the wire harness can, for example, make the excess length of the crossing portion less likely to slacken due to the biasing force of the biasing member, thereby improving the appearance of the crossing portion when the sliding door is in the fully closed position and suppressing vibrations and abnormal noises from the crossing portion when the sliding door is in the fully closed position and the vehicle is running. As a result, the wire harness has the effect of more appropriately retaining the excess length of the crossing portion.

[0008] Fig. 1 is an exemplary plan view of a wire harness according to an embodiment, showing a state in which a sliding door is positioned at a fully open position. Fig. 2 is an exemplary plan view of a wire harness according to an embodiment, showing a state in which a sliding door is positioned at a fully closed position. Fig. 3 is an exemplary perspective view of a wire harness according to an embodiment, showing a state in which a sliding door is positioned at a fully open position. Fig. 4 is an exemplary perspective view of a wire harness according to an embodiment, showing a state in which a sliding door is positioned at a fully closed position. Fig. 5 is an exemplary cross-sectional view of a bridge portion of a wire harness according to an embodiment.

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially identical. Note that in this specification, ordinal numbers are used only to distinguish between parts, members, portions, positions, directions, etc., and do not indicate order or priority.

[0010] [Embodiment] FIG. 1 is a plan view of a wire harness WH according to an embodiment, showing a state in which a sliding door 200 is positioned in a fully open position P1. The wire harness WH of this embodiment shown in FIG. 1 is installed in 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 the various devices using connectors or the like. The wire harness WH of this embodiment includes, for example, the wiring material 10 having a bridge portion 11 that spans between a vehicle body 100 and a sliding door 200, and a biasing member 20 that applies a biasing force to an excess length portion 12 (see FIG. 2 ) of the bridge portion 11, which will be described later. Note that the wire harness WH may further include a protector, a fixing device, a grommet, or the like.

[0011] In the following description, of the first, second, and third directions that intersect with one another, the first direction will be referred to as the "vehicle longitudinal direction X," the second direction will be referred to as the "vehicle width direction Y," and the third direction will be referred to 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 perpendicular to one another. The vehicle longitudinal direction X typically corresponds to the longitudinal direction of the vehicle (the vehicle body 100 and the 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 up-down direction (vertical direction) of the vehicle. Unless otherwise specified, the directions used in the following description will be described as directions in a state in which the wire harness WH is assembled to the vehicle (the vehicle body 100 and the sliding door 200).

[0012] 2 is a plan view of the wire harness WH, illustrating a state in which the sliding door 200 is positioned at a fully closed position P2. As shown in FIGS. 1 and 2 , the sliding door 200 is connected to the vehicle body 100 via an arm member 71 of a link mechanism 70 so as to be able to open and close between a fully open position P1 (see FIG. 1 ) and a fully closed position P2 (see FIG. 2 ). The fully open position P1 is a position where the sliding door 200 fully opens the vehicle entrance opening that opens toward the vehicle width direction Y, and the fully closed position P2 is a position where the sliding door 200 fully closes the entrance opening. The sliding door 200 is configured to be slidable in the vehicle front-rear 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] In the link mechanism 70, one end of an arm member 71 is pivotally supported on the vehicle body 100 via a vehicle-side rotation shaft 72 extending along the vehicle height direction Z, for example. A first arm holding member 73 is fixed to the vehicle body 100, which holds one end of the arm member 71 rotatably around the rotation center of the vehicle-side rotation shaft 72. In addition, in the link mechanism 70, the other end of the arm member 71 is pivotally supported on the sliding door 200 via a door-side rotation shaft 74 extending along the vehicle height direction Z, for example. A second arm holding member 75 is fixed to the sliding door 200, which holds the other end of the arm member 71 rotatably around the rotation center of the door-side rotation shaft 74.

[0014] The arm member 71 includes, 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 rotation shaft 72 and the door side rotation shaft 74. The pair of side walls 71b (see FIG. 3) are provided at both ends of the bottom wall 71a in the vehicle height direction Z, protrude toward the wiring material 10, and extend between the vehicle body rotation shaft 72 and the door side rotation shaft 74. The arm member 71 has a substantially U-shaped cross section that is open toward the wiring material 10 by the bottom wall 71a and the pair of side walls 71b. In the arm member 71, a fixing member 40 (described later) is fixed to a recess defined by the bottom wall 71a and the pair of side walls 71b.

[0015] Here, the vehicle is equipped with a sliding door power supply device for supplying power from a power source (such as a secondary battery) on the vehicle body 100 side to electrical connection objects on the sliding door 200 side. The electrical connection objects are, for example, components installed on the sliding door 200, such as electrical components and switches. The electrical components of the sliding door 200 refer to, for example, a drive device for operating a power window and a speaker. The switches of the sliding door 200 refer to, for example, a switch for operating a power window, a switch for operating a power seat, and the like. In this sliding door power supply device, a wire harness WH electrically connects the power source on the vehicle body 100 side to the electrical connection objects on the sliding door 200 side. In other words, the sliding door power supply device includes the wire harness WH of this embodiment.

[0016] Fig. 3 is a perspective view of the wire harness WH when the sliding door 200 is positioned at a fully open position P1, and Fig. 4 is a perspective view of the wire harness WH when the sliding door 200 is positioned at a fully closed position P2. As shown in Figs. 3 and 4, the wire harness WH includes, for example, a wiring material 10, a biasing member 20, a slide holding member 30, a fixing member 40, a vehicle body side holding member 50, and a door side holding member 60.

[0017] The wiring material 10 has, for example, one end electrically connected to a power source on the vehicle body 100 side and the other end electrically connected to an electrical connection object on the sliding door 200 side. The wiring material 10 is configured to include, for example, an electric wire bundle in which a plurality of electric wires W are bundled together, and a corrugated tube C as a tubular exterior material that covers the electric wire bundle. The wiring material 10 has relatively high flexibility and good bendability in an installed state in which the corrugated tube C is attached to the electric wire bundle. When the wiring material 10 of this embodiment is installed in a state in which the corrugated tube C is attached to the electric wire bundle, and is bent by applying an external force from a natural state (approximately straight state) in which no external force is applied, the bent portion elastically deforms, and an elastic reaction force is generated in the bent portion, causing the wiring material 10 to return to its original state.

[0018] The wiring material 10 also has, for example, a crossover section 11, a vehicle body-side wiring section 13, and a door-side wiring section 14. The crossover section 11 is a section of the wiring material 10 that is bridged between the vehicle body 100 and the sliding door 200 along the arm member 71 of the link mechanism 70. The crossover section 11 includes the above-mentioned multiple electric wires W and a corrugated tube C that sheathes the multiple electric wires W. The crossover section 11 is, for example, offset from the arm member 71 in the vehicle fore-and-aft direction X toward the fully open position P1 of the sliding door 200 and extends along the arm member 71. One longitudinal end 11a of the crossover section 11 is held by the vehicle body-side holding member 50, and the other longitudinal end 11b is held by the door-side holding member 60. The transition portion 11 is held by the vehicle body side holding member 50 and the door side holding member 60 in a state capable of following 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 routing portion 13 is a portion that is routed in a routing space portion on the vehicle body 100 side at the tip of one longitudinal end portion 11a of the crossover portion 11. The vehicle body-side routing portion 13 may be configured to include, for example, the above-mentioned plurality of electric wires W and a corrugated tube C that is wrapped around the plurality of electric wires W, or may be configured only with the plurality of electric wires W. The vehicle body-side routing portion 13 is drawn out from the vehicle body-side holding member 50 along the vehicle width direction Y, and extends toward a power source on the vehicle body 100 side to be electrically connected to the power source.

[0020] The door-side routing portion 14 is a portion that is routed in a routing space portion on the sliding door 200 side at the other longitudinal end portion 11b of the crossover portion 11. The door-side routing portion 14 may be configured to include, for example, the above-mentioned plurality of electric wires W and a corrugated tube C that is wrapped around the plurality of electric wires W, or may be configured only with the plurality of electric wires W. The door-side routing portion 14 is drawn out from the door-side holding member 60 along the vehicle height direction Z, and extends toward an object to be electrically connected on the sliding door 200 side to be electrically connected to the object to be electrically connected.

[0021] The vehicle body holding member 50 holds one longitudinal end 11a of the transition portion 11. The vehicle body holding member 50 includes, for example, a base portion 51, a fan portion 52, and an attachment portion 53. The base portion 51 is, for example, configured in a substantially rectangular tubular shape with an insertion space that opens along the vehicle width direction Y. The one longitudinal end 11a of the transition portion 11 is inserted into the base portion 51 along the vehicle width direction Y. The base portion 51 also has a through hole through which the vehicle body routing portion 13 is pulled out along the vehicle width direction Y. In this embodiment, for example, an annular recess of the corrugated tube C that constitutes the one longitudinal end 11a of the transition portion 11 engages with the inner circumferential surface of the through hole. This restricts movement of the one longitudinal end 11a of the transition portion 11 along the longitudinal direction of the transition portion 11 relative to the vehicle body holding member 50.

[0022] The fan portion 52 is provided at an end of the base portion 51 opposite the through hole through which the vehicle-body-side wiring portion 13 is pulled out in the vehicle width direction Y. The fan portion 52 is formed in a fan shape when viewed from the vehicle height direction Z (see FIG. 2 ), for example. An opening 52a is provided inside the fan portion 52, communicating with the insertion space of the base portion 51 and widening in a fan shape (trumpet shape) toward the sliding door 200 in the vehicle width direction Y. The opening 52a allows the transition portion 11 to swing around a rotation center extending in the vehicle height direction Z in response to 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 from the base portion 51 in a plate-like shape along the vehicle fore-and-aft direction X, for example. The mounting portion 53 has a mounting hole through which a fastening member is attached to fasten the vehicle-body-side holding member 50 to the vehicle body 100.

[0023] The door-side holding member 60 holds the other longitudinal end 11b of the transition portion 11. The door-side holding member 60 includes, for example, a bottom wall portion 61, a pair of side wall portions 62, and a tubular 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 into which fastening members for fastening the door-side holding 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 routing portion 14 is drawn along the vehicle height direction Z.

[0024] The cylindrical portion 63 extends cylindrically between the pair of side wall portions 62. For example, the cylindrical portion 63 is supported by the pair of side wall portions 62 so as to be rotatable about a rotation center extending along the vehicle height direction Z. The cylindrical portion 63 has a through hole through which the other longitudinal end 11b of the transition portion 11 passes. In this embodiment, for example, an annular recess of the corrugated tube C constituting the other longitudinal end 11b of the transition portion 11 is engaged with the inner circumferential surface of the through hole. This restricts movement of the other longitudinal end 11b of the transition portion 11 along the longitudinal direction of the transition portion 11 relative to the door-side retaining member 60. The door-side routing portion 14 is connected to the other longitudinal end 11b of the transition 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 holding member 50 and the door-side holding member 60 differs depending on whether the sliding door 200 is in the fully open position P1 or the fully closed position P2 relative to the vehicle body 100. Therefore, in the wire harness WH, when the shortest path between the vehicle body-side holding member 50 and the door-side holding member 60 is the longest, the crossing portion 11 is routed without slack between the vehicle body-side holding member 50 and the door-side holding member 60, and the path length in this state is set as the length of the crossing portion 11.

[0026] Here, the path length of the transition portion 11 routed without slack between the vehicle-body holding member 50 and the door-side holding member 60 is shorter when the shortest path between the vehicle-body holding member 50 and the door-side holding member 60 is shortest, i.e., when the sliding door 200 is at the fully closed position P2 (see FIG. 2), than when the shortest path between the vehicle-body holding member 50 and the door-side holding member 60 is longest, i.e., when the sliding door 200 is at the fully closed position P1 (see FIG. 1). Therefore, in the transition portion 11, when the shortest path between the vehicle-body holding member 50 and the door-side holding member 60 is shortest, i.e., when the sliding door 200 is at the fully closed position P2, an excess portion appears as an excess length portion 12.

[0027] The biasing member 20 applies a biasing force to the excess length portion 12 of the transition portion 11. The biasing member 20 is, for example, a compression coil spring or the like, and is provided between the transition portion 11 and the arm member 71 of the link mechanism 70. In this embodiment, for example, the biasing member 20 applies a biasing force in a direction that widens the gap G between the transition portion 11 and the arm member 71 when the sliding door 200 is positioned at the fully open position P1 (see FIG. 1 ) and when the sliding door 200 is positioned at the fully closed position P2 (see FIG. 2 ). Specifically, in this embodiment, when the sliding door 200 is positioned at the fully open position P1 (see FIG. 1 ), the transition portion 11 is routed between the vehicle body-side holding member 50 and the door-side holding member 60 via the shortest route without slack. Therefore, due to the tension of the transition portion 11, the transition portion 11 extends substantially parallel to the arm member 71 against the biasing force of the biasing member 20.

[0028] On the other hand, when the sliding door 200 is positioned at the fully closed position P2 (see FIG. 2 ), the transition portion 11 has a loosened excess length 12 between the vehicle body-side holding member 50 and the door-side holding member 60, and the excess length 12 is curved away from the arm member 71 by the biasing force of the biasing member 20. That is, in this embodiment, due to the biasing force of the biasing member 20, the gap G between the transition portion 11 and the arm member 71 is wider when the sliding door 200 is positioned at the fully closed position P2 (see FIG. 2 ) than when the sliding door 200 is positioned at the fully open position P1 (see FIG. 1 ) as viewed from the vehicle height direction Z. For example, one axial end of the biasing member 20 is held by the slide holding member 30, and the other axial end is held by the fixed member 40.

[0029] The slide holding member 30 is provided at one end of the biasing member 20 and is assembled to the transition portion 11 so as to be slidable along the longitudinal direction of the transition portion 11. The slide holding member 30 includes, for example, a holding portion 31 (see FIG. 4 ) and a base portion 32. The base portion 32 is configured, for example, in a substantially rectangular tubular shape with an insertion hole 32a through which the transition portion 11 is inserted. The insertion hole 32a is formed, for example, in a substantially circular shape along the outer circumferential surface of the transition portion 11. The base portion 32 is assembled with the transition portion 11 inserted into the insertion hole 32a, so that the base portion 32 is slidable along the longitudinal direction of the transition portion 11. The holding portion 31 protrudes, for example, in a cylindrical shape from the base portion 32 toward the arm member 71. One end of the biasing member 20 is inserted into the holding portion 31 and holds the one end of the biasing member 20.

[0030] The fixing member 40 is provided at the other end of the biasing member 20 and is fixed to the arm member 71 so as not to slide along the longitudinal direction of the arm member 71. The fixing member 40 is configured to include, for example, a holding portion 41 (see FIG. 3 ) and a base portion 42. The base portion 42 is configured, for example, in the shape of a substantially rectangular plate that is inserted into a recess of the arm member 71. The base portion 42 is fixed to the arm member 71 by fastening members such as screws or bolts, so that it is not slidable along the longitudinal direction of the arm member 71. The holding portion 41 protrudes, for example, in a cylindrical shape from the base portion 42 toward the bridge portion 11. The other end of the biasing member 20 is inserted into the holding portion 41, and the other end of the biasing member 20 is held therein.

[0031] In this embodiment, when the sliding door 200 is positioned at the fully open position P1 (see FIGS. 1 and 3), the slide retaining member 30 retains the sliding door 200 at a fully open retaining position P11 on one end 11a of the transition portion 11 in the longitudinal direction. The fully open retaining position P11 is, for example, a position close to (adjacent to) the vehicle body retaining member 50 at the one end 11a of the transition portion 11. When the sliding door 200 is positioned at the fully closed position P2 (see FIGS. 2 and 4), the slide retaining member 30 retains the sliding door 200 at a fully closed retaining position P12 on the other end 11b of the transition portion 11 in the longitudinal direction relative to the fully open retaining position P11. The fully closed retaining position P12 is, for example, a position approximately in the center of the transition portion 11 in the longitudinal direction. In this way, in this embodiment, when the sliding door 200 is positioned in the fully closed position P2, the slide holding member 30 holds the fully closed holding position P12, thereby allowing the excess portion 12 of the bridge portion 11 to be curved in an arc shape relative to the arm member 71 so that approximately the center of the longitudinal direction of the bridge portion 11 is relatively spaced apart from both end portions.

[0032] Fig. 5 is a cross-sectional view of a transition portion 11 of a wire harness WH. As shown in Fig. 5, the transition portion 11 includes, for example, a plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W. The plurality of electric wires W extend linearly along the longitudinal direction of the transition portion 11 and are formed to extend with approximately the same diameter in the longitudinal direction (extension direction). The electric wire W has a conductor portion (core wire) made of a plurality of conductive metal wires, the outside of which is covered with an insulating coating portion having insulation properties. The electric wire W has, for example, a core wire with a substantially circular cross-sectional shape and an insulating coating portion with a substantially annular cross-sectional shape, so that the overall cross-sectional shape is substantially circular.

[0033] The corrugated tube C is formed into a flexible cylindrical (tubular) shape using, for example, an insulating resin material. A plurality of electric wires W are inserted into the corrugated tube C, which covers and protects the outer peripheries of the plurality of electric wires W. The corrugated tube C has, for example, an annular recess formed on its outer periphery, and is formed into a bellows shape with a plurality of annular recesses provided along the longitudinal direction of the bridge portion 11. The corrugated tube C is also formed into, for example, a flat shape that is elongated vertically along the vehicle height direction Z. This prevents the corrugated tube C constituting the bridge portion 11 (excess length portion 12) from sagging along the vehicle height direction Z. In this embodiment, the biasing member 20 is configured to apply a biasing force to the corrugated tube C constituting the above-described bridge portion 11.

[0034] As described above, in the wire harness WH of this embodiment, the biasing member 20 biases the gap G between the crossover portion 11 and the arm member 71 so that the gap G is wider when the sliding door 200 is positioned at the fully closed position P2 than when the sliding door 200 is positioned at the fully open position P1, as viewed from the vehicle height direction Z. With this configuration, the wire harness WH can, for example, make the excess length 12 of the crossover portion 11 less likely to slacken due to the biasing force of the biasing member 20, thereby improving the appearance of the crossover portion 11 when the sliding door 200 is positioned at the fully closed position P2 and suppressing vibrations and abnormal noises of the crossover portion 11 when the sliding door 200 is positioned at the fully closed position P2 and the vehicle is traveling. As a result, the wire harness WH can more appropriately hold the excess length 12 of the crossover portion 11.

[0035] The wire harness WH of this embodiment also includes a slide holding member 30 provided at one end of the biasing member 20 and assembled to be slidable relative to the crossover portion 11 along the longitudinal direction of the crossover portion 11, and a fixing member 40 provided at the other end of the biasing member 20 and fixed to the arm member 71 so as not to be slidable relative to the arm member 71 along the longitudinal direction of the arm member 71. With this configuration, the wire harness WH can change the holding position of the slide holding member 30 relative to the crossover portion 11 in accordance with the movement (opening and closing) of the sliding door 200 between the fully open position P1 and the fully closed position P2, for example, by relative movement between the slide holding member 30 and the fixing member 40.

[0036] In the wire harness WH of the present embodiment, when the sliding door 200 is positioned at the fully open position P1, the slide holding member 30 holds the fully open holding position P11 on the one end 11a side in the longitudinal direction of the transition portion 11, and when the sliding door 200 is positioned at the fully closed position P2, the slide holding member 30 holds the fully closed holding position P12 on the other end 11b side in the longitudinal direction of the transition portion 11 from the fully open holding position P11. With this configuration, when the sliding door 200 moves from the fully open position P1 to the fully closed position P2, for example, the slide holding member 30 holds the fully closed holding position P12 on the other end 11b side in the longitudinal direction of the transition portion 11 from the fully open holding position P11, so that the excess length 12 of the transition portion 11 can be separated from the arm member 71, and thus the transition portion 11 can be held in a substantially U-shape (arc-shaped) that opens toward the arm member 71 when viewed from the vehicle height direction Z.

[0037] In the wire harness WH of the present embodiment, the crossover portion 11 includes a plurality of electric wires W and a corrugated tube C that covers the plurality of electric wires W, and the biasing member 20 applies a biasing force to the corrugated tube C that constitutes the crossover portion 11. With this configuration, the wire harness WH can, for example, make the corrugated tube C that constitutes the crossover portion 11 (excess length portion 12) less likely to slacken due to the biasing force of the biasing member 20, and can make the corrugated tube C less likely to sag along the vehicle height direction Z.

[0038] In the above embodiment, the crossover portion 11 (wiring material 10) is illustrated as including a plurality of electric wires W and a corrugated tube C that is wrapped around the plurality of electric wires W. However, the present invention is not limited to this example, and the crossover portion 11 (wiring material 10) may be configured, for example, as being composed only of a plurality of electric wires W. Furthermore, the biasing member 20 may be configured to be able to apply a biasing force to the excess portion 12 of the crossover portion 11 that is generated when the sliding door is positioned at the fully closed position P2 and when the sliding door is positioned at an intermediate position between the fully open position P1 and the fully closed position P2.

[0039] While the above describes exemplary embodiments of the present invention, the above 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, the specifications of each configuration, shape, and the like (structure, type, direction, format, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be appropriately modified and implemented.

[0040] REFERENCE SIGNS LIST 10 Wiring material 11 Crossover portion 12 Excess length portion 20 Pressing member 30 Slide holding member 40 Fixing member 70 Link mechanism 71 Arm member 100 Vehicle body 200 Sliding door P1 Fully open position P2 Fully closed position P11 Fully open holding position P12 Fully closed holding position C Corrugated tube G Gap W Electric wire X Vehicle longitudinal direction Y Vehicle width direction Z Vehicle height direction

Claims

1. A wire harness comprising: a wiring material having a bridge section that is bridged between a vehicle body and a sliding door along an arm member of a link mechanism that connects the sliding door to the vehicle body so that the door can be opened and closed between a fully open position and a fully closed position; and a biasing member that is provided between the bridge section and the arm member and applies a biasing force to an excess length of the bridge section that is generated when the sliding door is positioned at least in the fully closed position, wherein the biasing member biases the gap between the bridge section and the arm member so that the gap is wider when the sliding door is positioned in the fully closed position than when it is positioned in the fully open position when viewed from the vehicle height direction.

2. A wire harness as set forth in claim 1, comprising: a slide retaining member provided at one end of the biasing member and assembled to be slidable relative to the bridge section along the longitudinal direction of the bridge section; and a fixing member provided at the other end of the biasing member and fixed to the arm member so as not to be slidable relative to the arm member along the longitudinal direction of the arm member.

3. The wire harness according to claim 2, wherein the slide retaining member retains a fully open retaining position on one end side of the transition section in the longitudinal direction when the sliding door is positioned at the fully open position, and retains a fully closed retaining position on the other end side of the transition section in the longitudinal direction relative to the fully open retaining position when the sliding door is positioned at the fully closed position.

4. A wire harness according to claim 1 or 2, wherein the transition portion includes a plurality of electric wires and a corrugated tube that covers the plurality of electric wires, and the biasing member applies a biasing force to the corrugated tube that constitutes the transition portion.

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