Wire harness routing structure

Abstract

The purpose of the present invention is to provide a technique capable of smoothly pulling out and accommodating a wire harness in a slide structure. A wiring structure of a wire harness includes a wire harness and a support component. The support component includes: a protector that accommodates a second section of the wire harness; an arm that is supported by the protector so as to be rotatable about a rotation axis; and a biasing member that biases the arm. The arm includes: a shaft part having the rotation axis; a holding part that holds the second section; a connection part that connects the shaft part and the holding part and extends in a radial direction; and a pressing part that extends from the shaft part in a direction different from the connection part and presses a floating section side of the second section from the holding part. The biasing member biases the arm around the rotation axis from the holding part in a direction in which the floating section side is housed in the protector.

Description

Wire harness routing structure

[0001] The present disclosure relates to a wiring structure of a wire harness.

[0002] Patent Document 1 discloses a power supply device for a sliding structure. The power supply device for a sliding structure includes a link arm pivotally supported, a wire harness fixed at one end to the tip of the link arm and at the other end to a fixed structure, and an elastic member that urges the link arm upward and forward, and is disposed on a vertically disposed sliding structure. When the sliding structure is fully closed forward, the link arm pivots downward and rearward while elastically deforming the elastic member due to the tensile force of the wire harness, and when the sliding structure is fully opened rearward, the link arm pivots upward and forward due to the restoring force of the elastic member.

[0003] JP 2010-228704 A

[0004] It is desirable that the wire harness be drawn out and housed in the slide structure as smoothly as possible.

[0005] Therefore, an object of the present invention is to provide a technique that enables the wire harness to be pulled out and housed in the slide structure as smoothly as possible.

[0006] The wiring structure of the present disclosure is a wiring structure of a wire harness that connects a device provided on a vehicle body and a device provided on a sliding structure, and includes a wire harness including a first section supported on the vehicle body, a second section supported on the sliding structure, and a floating section between the first section and the second section, and a support part that supports the second section on the sliding structure, and the support part includes a protector that houses the second section, and a support part that is supported on the protector so as to be rotatable around a rotation axis. This is a wiring structure for a wire harness, which includes an arm and a biasing member that biases the arm, wherein the arm has a shaft portion having the rotation axis, a holding portion that holds the second section, a connecting portion that connects the shaft portion and the holding portion and extends radially, and a pressing portion that extends from the shaft portion in a direction different from the connecting portion and presses the free section side of the second section beyond the holding portion, and the biasing member biases the arm around the rotation axis in a direction that brings the free section side beyond the holding portion into the protector.

[0007] According to the present disclosure, the wire harness can be pulled out and housed in the slide structure as smoothly as possible.

[0008] FIG. 1 is a schematic plan view showing a wiring structure of a wire harness according to a first embodiment. FIG. 2 is a front view showing the wiring structure of a wire harness according to the first embodiment. FIG. 3 is an exploded perspective view showing a support part according to the first embodiment. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. FIG. 5 is an explanatory diagram showing how a wire harness deforms as a sliding structure moves. FIG. 6 is an explanatory diagram showing how a wire harness deforms as a sliding structure moves. FIG. 7 is a front view showing a wiring structure of a wire harness according to a first modified example. FIG. 8 is a front view showing a wiring structure of a wire harness according to a second modified example. FIG. 9 is an exploded perspective view showing a support part according to the second modified example. FIG. 10 is a front view showing a wiring structure of a wire harness according to a third modified example. FIG. 11 is a front view showing a wiring structure of a wire harness according to a fourth modified example. FIG. 12 is a front view showing a wiring structure of a wire harness according to a fifth modified example. FIG. 13 is an exploded perspective view showing a support part according to a sixth modified example. FIG. 14 is a rear view showing a support part according to the sixth modified example. Fig. 15 is a cross-sectional view taken along line XV-XV in Fig. 14. Fig. 16 is an exploded perspective view showing a support part according to a seventh modified example. Fig. 17 is a rear view showing a support part according to the seventh modified example. Fig. 18 is a cross-sectional view taken along line XVIII-XVIII in Fig. 17. Fig. 19 is a diagram showing a wiring structure of a wire harness according to an eighth modified example. Fig. 20 is an exploded perspective view showing a support part according to the eighth modified example. Fig. 21 is a schematic cross-sectional view showing a wiring structure of a wire harness according to the eighth modified example.

[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The wiring structure of the wire harness of the present disclosure is as follows.

[0011] (1) A wiring structure for a wire harness connecting a device provided on a vehicle body and a device provided on a sliding structure, the wiring harness including a first section supported on the vehicle body, a second section supported on the sliding structure, and a floating section between the first section and the second section; and a support part supporting the second section on the sliding structure, the support part including a protector that houses the second section, an arm supported on the protector so as to be rotatable around a rotation axis, and the The wire harness wiring structure includes a biasing member that biases the arm, wherein the arm has a shaft portion having the rotation axis, a holding portion that holds the second section, a connecting portion that connects the shaft portion and the holding portion and extends radially, and a pressing portion that extends from the shaft portion in a direction different from the connecting portion and presses the free section side of the second section beyond the holding portion, and the biasing member biases the arm around the rotation axis in a direction that brings the free section side beyond the holding portion into the protector.

[0012] According to the wiring harness arrangement structure of (1), the arm has a holding portion and a pressing portion, so that when the arm rotates, the portion of the second section between the portion held by the holding portion and the portion pressed by the pressing portion tends to maintain a constant radius of curvature, thereby enabling the wire harness to be pulled out and stored as smoothly as possible within the sliding structure.

[0013] (2) In the wiring structure of (1), the second section may include a held portion held by the holding portion, an end portion of the second section, and an extending portion between the holding portion and the end portion, and the connecting portion may cover the extending portion so that the extending portion can move in the extending direction. This allows the extending portion to move along the connecting portion, thereby increasing the amount of the wire harness that can be accommodated in the protector and enabling the wire harness to be pulled out and accommodated as smoothly as possible.

[0014] (3) In the wiring structure of (2), the pressing portion may cover the extending portion so that the extending portion can move in the extending direction. This allows the extending portion to move the pressing portion, thereby increasing the amount of the wire harness that can be accommodated in the protector and enabling the wire harness to be pulled out and accommodated as smoothly as possible.

[0015] (4) In the wiring structure of any one of (1) to (3), the connecting portion and the pressing portion may be continuous along the circumferential direction of the shaft portion, so that the pressing portion can press the wire harness in a region continuous with the connecting portion.

[0016] (5) In the wiring structure of any one of (1) to (3), the connecting portion and the pressing portion may be spaced apart from each other along the circumferential direction of the shaft portion, thereby making it possible to reduce the size of the arm while the pressing portion presses the wire harness at a position spaced apart from the connecting portion.

[0017] (6) In the wiring structure of any one of (1) to (5), the wire harness may include a wiring member, a first exterior member that is attached to the wiring member at a position closer to the end of the second section than the portion held by the holding portion, and a second exterior member that is attached to the wiring member at a position closer to the vehicle body than the portion held by the holding portion, and the first exterior member may be more flexible than the second exterior member. This allows the wire harness to bend smoothly when pulled out and stored, even if an exterior member is provided on the wire harness inside the protector.

[0018] (7) In the wiring structure of any one of (1) to (6), the wire harness may include a wiring member and an exterior member wrapped around the wiring member in a portion from the free-movement section to the holding section, and the holding section may hold the exterior member rotatably around an axis along the extension direction. A torsional force may be applied to the exterior member in the free-movement section during sliding movement of the sliding structure. By the holding section holding the exterior member rotatably around an axis along the extension direction, twisting of the exterior member is less likely to occur.

[0019] (8) In the wiring structure of the wire harness of (7), the exterior member may have a corrugated tube and an intervening member wrapped around the corrugated tube, the holding portion may hold the intervening member rotatably around the axis along the extension direction, and the intervening member may rotate integrally with the corrugated tube around the axis along the extension direction. This makes it easier for the exterior member to rotate around the axis along the extension direction than when the holding portion rotatably holds the corrugated tube.

[0020] (9) In the wiring structure of any one of (1) to (8), the wire harness may include a first end portion on the first section side and a second end portion on the second section side, the second end portion being located outside the protector, and the wire harness may include a protector fixing portion fixed to the protector between a portion held by the holding portion and the second end portion, and a second end-side extending portion extending from the protector fixing portion through the protector toward the second end portion. This makes it possible to prevent a change in length of the second end-side extending portion when the wire harness is pulled out and stored.

[0021] (10) In the wiring structure of any one of (1) to (8), the wiring harness may include a first end portion on the first section side and a second end portion on the second section side, and the second end portion may be fixed to the protector. This allows most of the wiring harness to be routed on the sliding structure by disposing the protector on the sliding structure.

[0022] (11) In the wiring structure of any one of (1) to (10), the biasing member may be a torsion coil spring or a helical spring. This makes it possible to easily provide the biasing member.

[0023] [Details of the embodiment of the present disclosure] Specific examples of the wiring structure of the wire harness of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0024] [First Embodiment] Hereinafter, a wiring structure of a wire harness according to a first embodiment will be described. The wiring structure of the wire harness is a wiring structure of a wire harness that connects a device provided in a vehicle body and a device provided in a sliding structure. In this embodiment, an example will be described in which the sliding structure is a sliding door. The sliding structure may be a member other than a sliding door, such as a sliding seat.

[0025] FIG. 1 is a schematic plan view showing a wiring structure 20 for a wire harness according to a first embodiment. The front-rear directions (FRONT, REAR) shown in FIG. 1 and other figures correspond to the front-rear direction of a vehicle. The inside-outside directions (IN, OUT) shown in FIG. 1 and other figures correspond to the inside-outside directions of the vehicle's side in the left-right direction of the vehicle. Specifically, FIG. 1 shows the left side of the vehicle, with the right side of the left side of the vehicle (lower on the page) being the inside of the vehicle, and the left side of the left side of the vehicle (upper on the page) being the outside of the vehicle. The up-down directions (UP, LOW) shown in FIG. 5, which will be described later, correspond to the up-down direction of the vehicle.

[0026] First, a description will be given of the relationship between the wiring harness routing structure 20 and the vehicle body 10 and sliding door 12 to which the wiring structure 20 is applied. In Fig. 1, the wiring harness routing structure 20 shown by solid lines represents a state in which the sliding door 12 is open, and the wiring harness routing structure 20 shown by two-dot chain lines represents a state in which the sliding door 12 is closed. In Fig. 1, some components such as the sliding door 12 are shown by two-dot chain lines in both the open and closed states.

[0027] A vehicle body 10 is provided with an entry / exit opening 11 on its side for passengers to enter and exit the vehicle. A sliding door 12 is slidably supported on the vehicle body 10. The entry / exit opening 11 is opened and closed by the sliding door 12 sliding. The sliding door 12 includes a door panel 13 that defines the exterior of the sliding door 12, and a door trim 14 that is provided on the vehicle interior side of the door panel 13. For example, a door arm 15 that supports the sliding door 12 is slidably supported on a support rail that is disposed on the vehicle body 10. A weatherstrip 16 is disposed around the periphery of the entry / exit opening 11 so as to contact the door panel 13 and the vehicle body 10. For example, the weatherstrip 16 is disposed in an annular shape around the outer periphery of the door trim 14 when the sliding door 12 is closed.

[0028] The sliding door 12 is provided with door-side devices such as a power window. The door-side devices are connected to vehicle-body-side devices (e.g., an ECU) provided in the vehicle body 10 via a wire harness 30. The wire harness 30 is routed across the vehicle body 10 and the sliding door 12. The wiring structure 20 for the wire harness includes the wire harness 30 that connects the vehicle-body-side devices and the door-side devices, a support component 40 that supports the wire harness 30 on the sliding door 12, and a vehicle-body support component 70 that supports the wire harness 30 on the vehicle body 10.

[0029] The wire harness 30 includes a wiring member 31 that transmits power or signals between door-side devices and vehicle-body-side devices, and an exterior member that covers the wiring member 31. The wiring member 31 may be, for example, an electric wire or an optical fiber cable. The wiring member 31 may be a single piece or multiple pieces. The exterior member protects the wiring member 31 and bundles the multiple wiring members 31 together. In this example, the exterior member includes a corrugated tube 33. The corrugated tube 33 has a shape in which large-diameter cylindrical portions and small-diameter cylindrical portions, each having a circular cross section, are alternately connected. The outer and inner surfaces of the corrugated tube 33 have a continuous, uneven shape corresponding to the large-diameter cylindrical portions and the small-diameter cylindrical portions along the extension direction. Note that in FIG. 1, the end portions of the corrugated tube 33 are depicted in a shape that conforms to the original shape of the corrugated tube 33, which has an uneven shape, while the middle portion of the corrugated tube 33 is depicted in a simplified shape that omits the uneven shape. This also applies to FIG. 2 and subsequent figures.

[0030] The wire harness 30 includes a first section 34 supported by the vehicle body 10, a second section 35 supported by the door, and a free section 36 between the first section 34 and the second section 35. The first section 34, the second section 35, and the free section 36 are different sections along the extension direction of the wire harness 30.

[0031] The first section 34 is supported on the vehicle body 10 by a vehicle body support component 70. The first section 34 is held on the vehicle body 10 when the sliding door 12 is opened or closed. The first section 34 is disposed, for example, above the floor panel and is covered by a floor carpet or a floor mat to prevent exposure. For example, the vehicle body 10 is provided with a vehicle body-side harness opening around the entry / exit opening 11 through which the wire harness 30 is led out. The vehicle body support component 70 shown in FIG. 1 supports a portion of the first section 34 that is continuous with the free section 36 around the vehicle body-side harness opening. The free section 36 extends to the outside of the vehicle body 10 through the vehicle body-side harness opening.

[0032] The second section 35 is a section supported by the sliding door 12 by a support component 40. The second section 35 is held by the sliding door 12 and moves relative to the vehicle body 10 together with the sliding door 12 when the sliding door 12 is opened or closed. Here, a portion of the second section 35 is supported by the support component 40 so as to move along a fixed path relative to the sliding door 12 when the sliding door 12 is opened or closed. The second section 35 is disposed between the door panel 13 and the door trim 14, thereby preventing the second section 35 from being exposed. A door-side harness opening is provided in the door trim 14 to allow the wire harness 30 to exit. The door-side harness opening is provided, for example, in a lower portion of the door trim 14. The free-floating section 36 extends to the outside of the sliding door 12 through the door-side harness opening.

[0033] The free-floating section 36 is not supported by the vehicle body 10 and the sliding door 12 and can move more freely relative to the vehicle body 10 and the sliding door 12 than the first section 34 and the second section 35. When the sliding door 12 is opened or closed, the free-floating section 36 is pulled by the sliding door 12, thereby moving and changing its position relative to the vehicle body 10 and the sliding door 12. A corrugated tube 33 is provided in the free-floating section 36. Here, it is assumed that the free-floating section 36 moves three-dimensionally when the sliding door 12 is opened or closed, and the corrugated tube 33 can follow the three-dimensional movement of the free-floating section 36. One end of the corrugated tube 33 extends to the first section 34 and is supported on the vehicle body 10 by a vehicle body support component 70. The other end of the corrugated tube 33 extends to the second section 35 and is supported on the sliding door 12 by a support component 40.

[0034] Here, the free space 36 has an exposed section. The exposed section is a section that is exposed between the vehicle body 10 and the sliding door 12 when the sliding door 12 is open. Here, the corrugated tube 33 provided in the free space 36 is exposed. For example, the exposed section is a portion of the free space 36 between the vehicle body-side harness opening and the door-side harness opening. The exposed section is a portion that is exposed in a position that is least likely to interfere with passengers getting in and out, such as a position at the rear and bottom of the vehicle in the entry / exit opening 11, but that may be stepped on by passengers.

[0035] In the following, the state in which the sliding door 12 is closed will be referred to as the closed state. The state in which the sliding door 12 is open will be referred to as the open state. In the open state, the state in which the exposed section is not stepped on and the free section 36 is in its natural state will be referred to as the first open state. Also, in the open state, the state in which the load F (see FIG. 6 ) when stepped on is applied to the exposed section will be referred to as the second open state.

[0036] Each component of the wiring harness routing structure 20 will now be described in more detail. FIG. 2 is a front view showing the wiring harness routing structure 20 according to the first embodiment. FIG. 3 is an exploded perspective view showing the support component 40 according to the first embodiment. In FIG. 3, the cover 43 shown in phantom lines is shown in a state in which it is properly attached to the main body 42, and the cover 43 shown in solid lines is shown in a state rotated 180 degrees from the state shown in phantom lines. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. FIGS. 5 and 6 are explanatory diagrams showing how the wiring harness 30 deforms as the sliding structure 12 moves. FIG. 5 is a perspective view, and FIG. 6 is a front view. FIGS. 5 and 6 show the wiring structure 20 in a closed state CS, an intermediate state IS, and an open state OS, respectively. The intermediate state IS shown in FIGS. 5 and 6 is a state in which the protector 41 is in the same position as the vehicle body support component 70 in the fore-and-aft direction, for example.

[0037] The support component 40 includes a protector 41, an arm 50, and a biasing member 60. The protector 41 houses the second section 35. The arm 50 is supported by the protector 41 so as to be rotatable about a rotation axis. The biasing member 60 biases the arm 50.

[0038] The wire harness 30 includes a first end portion on the first section 34 side and a second end portion on the second section 35 side. A first connector 37 is provided at the first end portion, and a second connector 38 is provided at the second end portion. The second connector 38 is located outside the protector 41. The second connector 38 is disposed within the sliding door 12 at a position separated from the protector 41.

[0039] The second section 35 has a held portion 35A, a first extending portion 35B, and a second extending portion 35C. The held portion 35A is the portion that is held by the arm 50. The first extending portion 35B is the portion that extends from the held portion 35A toward the first end. The second extending portion 35C is the portion that extends from the held portion 35A toward the second end. The second extending portion 35C has an intermediate extending portion 35D and a second end extending portion 35E. The intermediate extending portion 35D is the portion of the second extending portion 35C that fits within the protector 41. The second end extending portion 35E is the portion of the second extending portion 35C that extends outside the protector 41. The second section 35 extends from the held portion 35A through the intermediate extending portion 35D and the second end extending portion 35E to the second end 38.

[0040] The second section 35 has a loop portion 35L. The loop portion 35L is a portion where the wire harness 30 is routed in a loop shape. Here, the loop portion 35L is provided in the second extending portion 35C. Here, the loop portion 35L is provided in the intermediate extending portion 35D. An intersection portion 35I where the wire harness 30 intersects is provided at the end of the loop portion 35L. The portion that extends in a circular shape from one side portion overlapping at the intersection portion 35I to the other side portion overlapping at the intersection portion 35I is the loop portion 35L.

[0041] The wire harness 30 may include a protector fixing portion that is fixed to the protector 41 between the loop portion 35L and the second end 38. For example, the wire harness 30 may be fixed to the protector 41 at the insertion portion 47. The second end-side extending portion 35E extends from the protector fixing portion through the protector 41 toward the second end 38.

[0042] The exterior member of the wire harness 30 includes a fiber tube 32. The fiber tube 32 is a tubular member made of fiber fabric such as knitted or woven fabric. The fiber tube 32 is an example of a first exterior member that is attached to the wiring member 31 at the loop portion 35L. The corrugated tube 33 is an example of a second exterior member that is attached to the wiring member 31 on the vehicle body side of the loop portion 35L. The corrugated tube 33 is also an example of an exterior member that is attached to the wiring member 31 in the portion from the free movement section 36 to the holding portion 52. The first exterior member does not have to be the fiber tube 32. For example, the first exterior member may be an adhesive tape.

[0043] The fiber tube 32, which is the first exterior member, is more easily bendable than the corrugated tube 33, which is the second exterior member. Here, the loop portion 35L can be bent with a smaller radius of curvature than the free movement section 36. By having the fiber tube 32, which is more easily bendable than the corrugated tube 33, exteriorly fitted to the loop portion 35L, bending of the loop portion 35L is less likely to be hindered.

[0044] In the wire harness 30, the wiring member 31 is inserted through the corrugated tube 33 in a manner that allows it to move freely along the extension direction. This makes the wiring member 31 less susceptible to external forces acting on the corrugated tube 33. Specifically, the wiring member 31 simply passes through the interior of the corrugated tube 33 and is not fixed to the corrugated tube 33. Therefore, even if the corrugated tube 33 is twisted, the wire harness 30 is less likely to twist. Furthermore, when the middle portion of the corrugated tube 33 is pushed in a direction intersecting the axial direction, the corrugated tube 33 bends as if pulled in the pushed direction, reducing the difference between the concave and convex portions, allowing it to elongate and deform. In this case, when the wiring member 31 is pushed by the corrugated tube 33, it moves freely along the extension direction, thereby preventing the tension applied to the wiring member 31 from increasing.

[0045] The wiring member 31 may be fixed to the fiber tube 32 so as not to move along the extension direction. The wiring member 31 may be fixed by being bound together with the end of the fiber tube 32 with a binding member such as adhesive tape or a binding band.

[0046] The protector 41 houses the second section 35. The protector 41 houses the loop portion 35L. The protector 41 is composed of two parts: a main body 42 and a cover 43. The main body 42 and the cover 43 may be made of, for example, resin. The main body 42 and the cover 43 may be injection-molded. The main body 42 and the cover 43 may be configured to maintain their combined state by a locking structure integrally formed with the main body 42 and the cover 43. The main body 42 and the cover 43 may also be configured to maintain their combined state by a fastening structure using fastening members such as bolts. The main body 42 and the cover 43 each have a main plate portion 44, a peripheral wall portion 45, a bearing portion 46, and a spring support portion 48. The bearing portion 46 and the spring support portion 48 may be provided on both the main body 42 and the cover 43, or on only one of them.

[0047] The main plate portion 44 is formed in a disk shape. The main plate portion 44 of the body 42 covers the loop portion 35L from one axial side. The main plate portion 44 of the cover 43 covers the loop portion 35L from the other axial side.

[0048] The peripheral wall portion 45 protrudes in the axial direction from the outer peripheral edge portion of the main plate portion 44. The peripheral wall portion 45 is not provided around the entire outer edge portion of the main plate portion 44. The peripheral wall portion 45 is provided on a portion of the main plate portion 44 along the circumferential direction. Another portion of the main plate portion 44 along the circumferential direction is an opening without the peripheral wall portion 45. The portion extending from the first extension portion 35B toward the free movement section 36 through the opening extends outside the protector 41. In this case, the opening is provided on the lower edge portion of the main plate portion 44. In this case, an area of ​​at least one-quarter of the circumference is the opening. As the sliding door 12 is opened or closed, the position of the wire harness 30 extending from the opening changes.

[0049] The bearing portion 46 supports the shaft portion 51 of the arm 50. In this example, the shaft portion 51 is concave and the bearing portion 46 is convex. The bearing portion 46 protrudes from the center of the inner surface of the main plate portion 44. Alternatively, the shaft portion 51 may be convex and the bearing portion 46 may be concave.

[0050] The spring support portion 48 supports one end of the biasing member 60. Here, the spring support portion 48 has a pair of wall portions protruding from the outer surface of the peripheral wall portion 45 and a support shaft connecting the pair of wall portions. One end of the biasing member 60 is hooked onto the support shaft.

[0051] The protector 41 has an insertion portion 47. The insertion portion 47 is provided on the main body 42 or the cover 43. The insertion portion 47 protrudes to the inner surface of the main plate portion 44. The insertion portion 47 is formed in a tunnel shape along the radial direction.

[0052] The arm 50 has a shaft portion 51, a holding portion 52, a connecting portion 53, and a pressing portion 54. The arm 50 may be made of, for example, resin. The arm 50 may be, for example, an injection-molded product. The arm 50 may be composed of multiple parts, such as the main body 42 and cover 43 of the protector 41. In particular, the holding portion 52 and the connecting portion 53, which are cylindrical or rectangular, may be composed of a groove-shaped part and a lid-shaped part and may be attachable to the wire harness 30 from the side.

[0053] The shaft portion 51 has a rotation axis. The rotation axis extends horizontally. The shaft portion 51 is located inside the loop portion 35L. The shaft portion 51 is formed in a cylindrical shape with both ends open. The bearing portions 46 of the main body 42 and the cover 43 fit onto the shaft portion 51 through the both end openings.

[0054] The holding portion 52 holds the second section 35. The holding portion 52 holds the portion of the second section 35 that extends outside the loop portion 35L and along the loop portion 35L. The holding portion 52 holds the held portion 35A. Here, the holding portion 52 holds the corrugated tube 33. The holding portion 52 has a convex portion 52a and a concave portion 52b. The convex portion 52a fits into the concave portion 52b of the corrugated tube 33, and the convex portion 52a of the corrugated tube 33 fits into the concave portion 52b. This restricts movement of the corrugated tube 33 along the extension direction relative to the holding portion 52.

[0055] The holding portion 52 may hold the corrugated tube 33 rotatably around an axis along the extension direction. For example, the convex portions 52a and the concave portions 52b may be formed smaller than the concave and convex portions of the corrugated tube 33, so that the corrugated tube 33 is rotatable around an axis along the extension direction within the holding portion 52. Alternatively, for example, the holding portion 52 may hold the corrugated tube 33 rotatably around an axis along the extension direction via an intervening member. In this case, the intervening member holds the corrugated tube 33 so that it cannot rotate around the axis along the extension direction, and the holding portion 52 holds the intervening member rotatably around the axis along the extension direction.

[0056] The holding portion 52 is at the same height as the rotation axis or higher. When the sliding door 12 is opened or closed, the amount of rotation of the arm 50 is 180 degrees or less, and the area at the same height as the shaft portion 51 or higher is the movement area of ​​the holding portion 52. Note that if even a part of the holding portion 52 is located higher than the lower end of the shaft portion 51, the holding portion 52 may be considered to be at the same height as the rotation axis or higher.

[0057] In the example shown in Fig. 6, the holding portion 52 is at the same height as the rotation axis in the closed state CS and the intermediate state IS, and is located on opposite sides of the rotation axis. In the closed state CS, the holding portion 52 is located at the same height as or further forward than the rotation axis. In the intermediate state IS, the holding portion 52 is located further rearward than the rotation axis. The holding portion 52 moves in a region between the position in the closed state CS and the position in the intermediate state IS.

[0058] The connecting portion 53 connects the shaft portion 51 and the holding portion 52. The connecting portion 53 extends radially from the shaft portion 51.

[0059] The pressing portion 54 extends radially from the shaft portion 51 in a direction different from the direction in which the connecting portion 53 extends. The pressing portion 54 presses the first extending portion 35B of the second section 35.

[0060] Here, the pressing portion 54 is formed in a fan shape. The pressing portion 54 is formed wider in the circumferential direction than the connecting portion 53. The pressing portion 54 is connected to the connecting portion 53 along the circumferential direction. The area of ​​the connecting portion 53 and the pressing portion 54 in the circumferential direction is greater than 90 degrees and less than 180 degrees. Here, the area of ​​the connecting portion 53 and the pressing portion 54 in the circumferential direction is about 130 degrees. The pressing portion 54 may have a portion that presses the first extending portion 35B at a position 90 degrees or more away from the connecting portion 53 along the circumferential direction.

[0061] The pressing portion 54 may be configured to always press the first extension portion 35B when the cover is open or closed. The pressing portion 54 may be configured to press the first extension portion 35B when the cover is in a certain state when the cover is open or closed. For example, the pressing portion 54 may press the first extension portion 35B when the holder 52 has moved the most in the biasing direction (here, the intermediate state IS shown in FIG. 6 ). In the open state OS or the closed state CS, the pressing portion 54 does not need to press the first extension portion 35B.

[0062] 6 , a portion of the pressing portion 54 including the end portion farthest from the connecting portion 53 in the circumferential direction does not press the first extending portion 35B in the open state OS or the closed state CS. In the open state OS or the closed state CS, the peripheral wall portion 45 does not have a portion facing the portion of the pressing portion 54 including the end portion farthest from the connecting portion 53 in the circumferential direction. In the open state OS or the closed state CS, the first extending portion 35B extends outward from the protector 41 from between the end of the peripheral wall portion 45 and the circumferential middle portion of the pressing portion 54 and is separated from the pressing portion 54.

[0063] The connecting portion 53 and the pressing portion 54 cover the second extending portion 35C so that the second extending portion 35C can move in the extending direction. The connecting portion 53 and the pressing portion 54 cover the loop portion 35L at the portion where they intersect with the loop portion 35L so that the loop portion 35L can move in the extending direction. The inner surfaces of the connecting portion 53 and the pressing portion 54 do not have an uneven shape like the inner surface of the holding portion 52. The hollow portions of the connecting portion 53 and the pressing portion 54 are formed larger than the diameter of the wiring member 31 in the loop portion 35L so that the wiring member 31 is not clamped.

[0064] Here, the connecting portion 53 and the pressing portion 54 are cylindrical, square, or other tubular, and a portion of the loop portion 35L passes through the connecting portion 53 and the pressing portion 54. The connecting portion 53 and the pressing portion 54 have a pair of main wall portions covering the loop portion 35L from both axial sides, an inner wall portion covering the inner side of the loop portion 35L, and an outer wall portion covering the outer side of the loop portion 35L. One of the pair of main wall portions contacts the main plate portion 44 of the main body 42, and the other main wall portion faces the main plate portion 44 of the cover 43. The outer surface of the shaft portion 51 forms the inner wall portion. The outer surface of the inner side of the holding portion 52 forms the outer wall portion. The outer wall portion of the pressing portion 54 presses the first extending portion 35B to prevent it from bending inward. The outer peripheral wall of the connecting portion 53 separates the internal space of the holding portion 52 from the internal space of the connecting portion 53. Note that one of the pair of main walls may be omitted, and the connecting portion 53 and the pressing portion 54 may be formed in a groove shape. In this case, one of the pair of main plate portions 44 serves as a cover for the groove.

[0065] The arm 50 has a spring support portion 55 and a guide groove 56. The spring support portion 55 supports one end of the urging member 60. The spring support portion 55 protrudes toward the outer periphery of the protector 41. The spring support portion 55 is connected to the outer periphery of the holding portion 52. The spring support portion 55 has a housing portion and a support shaft. The housing portion has a bottom wall and a pair of side walls and is formed in a groove shape. The outer surface of the bottom wall is connected to the outer surface of the holding portion 52. The support shaft is provided at one end of the housing portion so as to connect the pair of side walls. A portion of the urging member 60 fits into the housing portion, and one end of the urging member 60 is hooked onto the support shaft.

[0066] The guide groove 56 is provided between the spring support portion 55 and the holding portion 52. The guide groove 56 is formed in a portion that connects the spring support portion 55 and the holding portion 52. The tip of the peripheral wall portion 45 fits into the guide groove 56. This allows the spring support portion 55 to move stably along the outer periphery of the protector 41 when the arm 50 rotates. Here, the guide grooves 56 are formed on both axial sides of the arm 50. The peripheral wall portion 45 of the main body 42 and the peripheral wall portion 45 of the cover 43 each fit into the guide groove 56.

[0067] The biasing member 60 biases the arm 50 around the rotation axis in a direction that causes the free movement section 36 side of the holding portion 52 to be accommodated within the protector 41. The biasing member 60 biases the arm 50 around the rotation axis in a direction that increases the size of the loop portion 35L. The biasing member 60 is a helical spring 60. The helical spring 60 includes a spring body 61 and hook portions 62 and 63 provided on both ends of the spring body 61. The spring body 61 is a wire extending in a coil shape. The spring body 61 extends along the outer periphery of the protector 41. A portion of the spring body 61 fits into a housing portion of the spring support portion 55 of the arm 50. The hook portion 62 is hooked onto and supported by the support shaft of the spring support portion 55 of the arm 50. The hook portion 63 is hooked onto and supported by the support shaft of the spring support portion 48 of the protector 41. The hook portion 63 does not move even when the arm 50 rotates. The hook portion 62 moves in the circumferential direction in accordance with the rotation of the arm 50. As a result, the spring body 61 expands and contracts when the arm 50 rotates.

[0068] The biasing member 60 may always bias the arm 50 in the same direction while the sliding door 12 is opened or closed. For example, the spring body 61 may be in a state where it is extended beyond its natural length even when the excess length is at its maximum (the intermediate state IS in FIG. 5 ).

[0069] When the sliding structure 12 slides between the first position and the second position relative to the vehicle body 10, the length of the free movement section 36 and the size of the loop portion 35L change. When the length of the free movement section 36 shortens, the size of the loop portion 35L increases. When the length of the free movement section 36 lengthens, the size of the loop portion 35L decreases. The size of the loop portion 35L can be considered to be the length of the section housed in the protector 41. Specifically, an increase in the size of the loop portion 35L is synonymous with an increase in the length of the section of the wire harness 30 housed in the protector 41, and a decrease in the size of the loop portion 35L is synonymous with a decrease in the length of the section of the wire harness 30 housed in the protector 41.

[0070] At the intermediate position between the first position and the second position, the length of the free movement section 36 is shortest and the size of the loop portion 35L is largest. At at least one of the first position and the second position, the length of the free movement section 36 is longest and the size of the loop portion 35L is smallest. Here, at the first position, the length of the free movement section 36 is longest and the size of the loop portion 35L is smallest. At the second position, the length of the free movement section 36 is between the longest length at the first position and the shortest length at the intermediate position, and the size of the loop portion 35L is between the smallest length at the first position and the largest size at the intermediate position.

[0071] When the sliding structure 12 slides relative to the vehicle body 10 from the first position toward the intermediate position, the length of the free movement section 36 shortens and the size of the loop portion 35L increases. When the sliding structure 12 slides relative to the vehicle body 10 from the intermediate position toward the second position, the length of the free movement section 36 lengthens and the size of the loop portion 35L decreases.

[0072] When the sliding structure 12 slides relative to the vehicle body 10 from the second position toward the intermediate position, the length of the free movement section 36 becomes shorter and the size of the loop portion 35L becomes larger. When the sliding structure 12 slides relative to the vehicle body 10 from the intermediate position toward the first position, the length of the free movement section 36 becomes longer and the size of the loop portion 35L becomes smaller.

[0073] In the first open state, the holding portion 52 of the arm 50 is located at an intermediate position. Therefore, the arm 50 can rotate in a direction in which the wire harness 30 is pulled out from the protector 41. When a load F is applied in the first open state, the arm 50 rotates, and the wire harness 30 is pulled out from the protector 41, thereby achieving the second open state. The position of the holding portion 52 of the arm 50 in the second open state is the same as the position of the holding portion 52 of the arm 50 in the closed state CS, or is closer to the position of the holding portion 52 of the arm 50 in the closed state than the position of the holding portion 52 of the arm 50 in the first open state.

[0074] <Effects, etc.> According to the wiring harness routing structure 20 configured as described above, the arm 50 is provided with the holding portion 52 and the pressing portion 54, so that when the arm 50 rotates, the portion of the second section 35 between the portion pressed by the pressing portion 54 and the held portion 35A tends to maintain a constant radius of curvature. This makes it possible to pull out and store the wire harness 30 inside the sliding door 12 as smoothly as possible.

[0075] Now, consider the case where the wire harness 30 is pulled out by transitioning from the intermediate state IS to the closed state CS shown in FIG. 6 . In this case, a tensile force is applied to the wire harness 30 such that the first end 37 is pulled rearward. Furthermore, a biasing force of the biasing member 60 is applied to the held portion 35A. If the tensile force is greater than the biasing force, the arm 50 rotates, allowing the wire harness 30 to be smoothly pulled out. However, if the biasing force is greater than the tensile force, the arm 50 does not rotate, and the first extension portion 35B bends at a position closer to the held portion 35A, potentially allowing the wire harness 30 to be pulled out. In this case, the first extension portion 35B bent at a position closer to the held portion 35A may interfere with the second extension portion 35C, making it difficult to pull out the wire harness 30.

[0076] In contrast, when the pressing portion 54 is provided as in the present disclosure, the bending position of the first extending portion 35B can be moved away from the held portion 35A even when the biasing force is greater than the tensile force. This prevents the first extending portion 35B from interfering with the second extending portion 35C, allowing the wire harness 30 to be pulled out smoothly. Furthermore, in addition to the force that the holding portion 52 receives when the held portion 35A is pulled, the force that the pressing portion 54 receives from the portion where the first extending portion 35B abuts also serves as a force that rotates the arm 50 against the biasing force of the biasing member 60. This makes it easier for the arm 50 to rotate against the biasing force of the biasing member 60, allowing the wire harness 30 to be pulled out smoothly.

[0077] 6 to the intermediate state IS, the first extending portion 35B is accommodated along the outer surface of the pressing portion 54. This prevents the first extending portion 35B from interfering with the second extending portion 35C, and allows the wire harness 30 to be accommodated smoothly.

[0078] Furthermore, if the holding portion 52 moves above the rotation axis when the arm 50 rotates, a portion of the first extending portion 35B located above the held portion 35A may sag, such as in the intermediate state IS shown in Figure 6. Even in this case, the provision of the pressing portion 54 can prevent the first extending portion 35B from sagging. This also allows the wire harness 30 to be smoothly pulled out and stored.

[0079] Furthermore, the connecting portion 53 and the holding portion 54 cover the second extending portion 35C so that the second extending portion 35C can move in the extending direction. This allows the second extending portion 35C to move the connecting portion 53 and the holding portion 54, thereby increasing the capacity of the wire harness 30 to be accommodated in the protector 41 and enabling the wire harness 30 to be pulled out and accommodated as smoothly as possible.

[0080] Furthermore, the connecting portion 53 and the pressing portion 54 are continuous along the circumferential direction of the shaft portion 51. This allows the pressing portion 54 to press the wire harness 30 in the region continuous with the connecting portion 53.

[0081] Furthermore, the fiber tube 32 that is sheathed on the second extending portion 35C is easier to bend than the corrugated tube 33 that is sheathed from the first extending portion 35B to the free moving section 36. As a result, even if an exterior member is provided on the second extending portion 35C, the wire harness 30 can be smoothly bent when being pulled out and stored.

[0082] Furthermore, the holding portion 52 holds the corrugated tube 33 rotatably around an axis along the extension direction. Here, a torsional force may be applied to the corrugated tube 33 in the free movement section 36 during sliding movement of the sliding structure 12. By having the holding portion 52 hold the corrugated tube 33 rotatably around an axis along the extension direction, twisting of the corrugated tube 33 is less likely to occur.

[0083] The wire harness 30 also includes a protector fixing portion that is fixed to the protector 41 between the held portion 35A and the second end 38, and a second end-side extending portion 35E that extends from the protector fixing portion through the protector 41 toward the second end 38. This makes it possible to prevent the length of the second end-side extending portion 35E from changing when the wire harness 30 is pulled out and stored.

[0084] The biasing member 60 is a helical spring 60. This allows the biasing member 60 to be provided easily.

[0085] [Note] FIG. 7 is a front view showing a wiring harness routing structure 120 according to a first modified example.

[0086] In this modified example, the configuration of the second section 135 of the wire harness 130 is different from the configuration of the second section 35 of the wire harness 30. Specifically, in the wire harness 130, the second end extension portion 35E is omitted, and the second end 38 is fixed to the protector 41. As a result, by disposing the protector 41 on the sliding door 12, most of the wire harness 130 is routed in the sliding door 12.

[0087] In this case, the protector 41 may include a connector support portion that supports the second connector 38. In the example shown in Fig. 7, the sliding door 12 is provided with a relay harness 180 that is connected to the second connector 38. The relay harness 180 includes a relay connector 182 that is connected to the second connector 38, and a relay wiring member 181 that extends from the relay connector 182. In the sliding door 12, the second connector 38 supported by the protector 41 may be directly connected to a connector of a device inside the sliding door 12.

[0088] Fig. 8 is a front view showing a wiring harness routing structure 220 according to the second modified example, and Fig. 9 is an exploded perspective view showing a support component 240 according to the second modified example.

[0089] In this modification, the shape of the support part 240 is different from the shape of the support part 40. In this modification, the biasing member 260 in the support part 240 is a torsion coil spring 260. In this case, as in the case of the helical spring 60, the biasing member 260 can be easily provided.

[0090] Torsion coil spring 260 also includes a spring body 261 and hook portions 262, 263 provided on both ends of spring body 261. Spring body 261 is made of wire formed into a coil shape. Spring body 261 is arranged coaxially with shaft portion 251. Spring body 261 is formed to have a larger diameter than shaft portion 251. Shaft portion 251 is arranged inside spring body 261. Hook portion 262 is made of wire extending linearly from one end of coil-shaped spring body 261. Hook portion 263 is made of wire extending in an L-shape from the other end of coil-shaped spring body 261.

[0091] The arm 250 and the protector 241 of the support part 240 have a configuration corresponding to the torsion coil spring 260 .

[0092] The shaft portion 251 of the arm 250 has a hole portion 251A through which the bearing portion 46 of the main body 242 of the protector 241 passes, and a first annular groove 251B that accommodates the bearing portion 246 of the cover 243 of the protector 241. Both the bearing portion 46 and the bearing portion 246 may be present, or only the bearing portion 246 may be present. Both the hole portion 251A and the first annular groove 251B may be present, or only the first annular groove 251B may be present. The first annular groove 251B is provided on the outer periphery of the hole portion 251A.

[0093] The arm 250 has a housing portion that houses the spring body 261 of the torsion coil spring 260. Here, the second annular groove 257 provided on the outer circumferential side of the first annular groove 251B serves as the housing portion that houses the spring body 261.

[0094] The spring support portion 255 of the arm 250 supports the hook portion 262 extending linearly. The spring support portion 255 is formed in a linear groove shape extending radially outward from the second annular groove 257. The spring support portion 255 is provided on a part of the wall of the connecting portion 53. The spring support portion 255 is provided on a first wall portion of the pair of wall portions forming the connecting portion 53 that is located on the bottom side of the second annular groove 257. A through hole is formed in a second wall portion of the pair of wall portions forming the connecting portion 53 that is located on the opening side of the second annular groove 257, through which the hook portion 262 passes when the spring body 261 is fitted into the second annular groove 257 from the opening side of the second annular groove 257.

[0095] Unlike the spring support portion 55 of the arm 50, the spring support portion 255 of the arm 250 does not protrude to the outer periphery of the holding portion 52. Therefore, the support part 240 can be made more compact in the radial direction than the support part 40.

[0096] The arm 250 does not have a guide groove 56. Therefore, the peripheral wall portion 45 of the main body 242 of the protector 241 and the peripheral wall portion 45 of the cover 243 can come into contact with each other at their respective tip ends.

[0097] The bearing portion 246 of the cover 243 of the protector 241 is formed in a cylindrical shape with a larger diameter than the bearing portion 46 of the main body 242. The bearing portion 246 fits into the first annular groove 251B.

[0098] The spring support portion 248 of the protector 241 supports the hook portion 263 extending linearly. The spring support portion 248 is provided on the cover 243. An L-shaped groove is formed on the inner surface of the main plate portion 44 of the cover 243 to serve as the spring support portion 248. An annular groove that accommodates the end portion of the spring body 261 along the axial direction may be formed on the inner surface of the main plate portion 44 of the cover 243. The annular groove is provided on the outer periphery of the bearing portion 246. The groove of the spring support portion 248 may extend from the annular groove to the outer periphery.

[0099] Unlike the insertion portion 47, the insertion portion 247 in the protector 241 is not provided in the main plate portion 44 of the main body 242. The insertion portion 247 is provided in the peripheral wall portion 45 of the main body 242 or the cover 243. The insertion portion 247 is a through hole formed in a part of the peripheral wall portion 45 of the main body 242 or the cover 243.

[0100] The insertion portion 247 includes a protruding piece 247A that protrudes outward from the periphery of the through-hole. The protruding piece 247A is bound to the wire harness 30 together with a binding member BD such as a binding band or adhesive tape. This fixes the base end of the second end-side extending portion 35E to the protector 241.

[0101] The protector 241 may include a restricting protrusion 249. The restricting protrusion 249 protrudes inward from a portion of the peripheral wall 45. The restricting protrusion 249 comes into contact with the holding portion 52 to prevent further rotation of the arm 250. Here, the restricting protrusion 249 comes into contact with the arm 250 rotating in the direction urged by the urging member 260. The restricting protrusion 249 comes into contact with the arm 250 in an intermediate state in which the excess length is at its maximum. The restricting protrusion 249 may come into contact with the arm 250 rotating in the direction opposite to the direction urged by the urging member 260.

[0102] FIG. 10 is a front view showing a wiring harness routing structure 320 according to a third modified example.

[0103] In this modified example, the shape of the arm 350 is different from the shapes of the arms 50 and 250. The pressing portion 354 of the arm 350 is not continuous with the connecting portion 53 along the circumferential direction of the shaft portion 251. The pressing portion 354 and the connecting portion 53 are spaced apart from each other along the circumferential direction of the shaft portion 251. This allows the pressing portion 354 to press the wire harness 30 at a position spaced apart from the connecting portion 53, while reducing the size of the arm 350. The pressing portion 354 has a shape obtained by removing the end portion on the connecting portion 53 side from the pressing portion 54 along the circumferential direction. The dimension of the pressing portion 354 in the circumferential direction is approximately the same as the dimension of the connecting portion 53. The configuration of the arm 350 other than the pressing portion 354 is the same as that of the arm 250.

[0104] FIG. 11 is a front view showing a wiring harness routing structure 420 according to the fourth modification.

[0105] In this modified example, the shape of the arm 450 differs from the shapes of the arms 50, 250, and 350. The pressing portion 454 of the arm 450 extends from the shaft portion 251 toward the opposite side from the connecting portion 53. Like the pressing portion 354 of the arm 350, the pressing portion 454 is not continuous with the connecting portion 53 in the circumferential direction. Like the pressing portion 354, the pressing portion 454 is provided at a position separated from the connecting portion 53 in the circumferential direction. Like the pressing portion 354, the dimension of the pressing portion 454 in the circumferential direction is approximately the same as the dimension of the connecting portion 53. The configuration of the arm 450 is the same as that of the arm 350, except for the position of the pressing portion 454.

[0106] FIG. 12 is a front view showing a wiring harness routing structure 520 according to the fifth modified example.

[0107] In this modification, the path of the second section 535 of the wire harness 530 is different from the path of the wire harness 30. The second section 535 of the wire harness 530 does not have the loop portion 35L or the intersection portion 35I. The second extending portion 535C of the second section 535 extends from the held portion 35A, makes a U-turn, and enters the connecting portion 53. After leaving the connecting portion 53, the second extending portion 535C passes through the pressing portion 54 while circling around the shaft portion 251, and extends to the insertion portion 247.

[0108] In the example shown in Fig. 12, a torsion coil spring 260 is used as the biasing member, but a helical spring 60 or the like may also be used. Also, in the example shown in Fig. 12, the arm 350 shown in Fig. 10 is used, but the arms 250, 450, or the like may also be used.

[0109] Fig. 13 is an exploded perspective view showing a support part 640 according to the sixth modified example. Fig. 14 is a rear view showing the support part 640 according to the sixth modified example. Fig. 15 is a cross-sectional view taken along line XV-XV in Fig. 14.

[0110] In support part 640, the manner in which protector 641 supports arm 650 differs from the previous support manners. Specifically, arm 650 is supported by only one of main body 642 and cover 643 of protector 641. Here, arm 650 is supported only by cover 643 of protector 641. Note that support part 640 will be described using an example in which torsion coil spring 260 is used, similar to support part 240, but it is also applicable to an example in which helical spring 60 is used.

[0111] As shown in Figure 13, a bearing 46 is not provided on a main plate 644 of a main body 642. Instead, a bearing 646 provided on a cover 643 is longer than the bearing 246 of the cover 243 so that it can support the shaft 251 by itself. The bearing 646 has a central portion 646A that fits into the hole 251A of the shaft 251, and a cylindrical portion 646B that fits into the first annular groove 251B of the shaft 251. The central portion 646A is longer in the axial direction than the cylindrical portion 646B. Here, the central portion 646A has a length in the axial direction that is approximately the same as that of the hole 251A.

[0112] 13, a through hole 644h is formed in place of the bearing 46 in the main plate 644 of the body 642 of the protector 641 at the position where the bearing 46 was provided. As shown in FIG. 14, the diameter of the through hole 644h is larger than the diameter of the central portion 646A and larger than the diameter of the hole 251A. This prevents the tip surface of the central portion 646A from hitting the main plate 644 of the body 642.

[0113] 15 , arm 650 is spaced apart in the axial direction from the side (main body 642 in this case) that is not journaled between main body 642 and cover 643. The size of distance D is not particularly limited, but may be, for example, the same as or slightly smaller than the thickness of main plate portion 644.

[0114] As shown in FIG. 14 , the pressing portion 654 of the arm 650 extends in the same direction as the pressing portion 354 of the arm 350. As shown in FIG. 13 , the pressing portion 654 and the connecting portion 653 of the arm 650 are groove-shaped rather than cylindrical like the pressing portion 354 and the connecting portion 53. This makes it easier to pass the loop portion 35L through the pressing portion 654 and the connecting portion 653. The groove shape has a bottom surface extending radially from the shaft portion 251 and a pair of side surfaces extending axially from both ends of the bottom surface in the radial direction. The bottom surface is located near the side of the main body 642 and the cover 643 on which the arm 650 is not pivotally supported (here, the main body 642). The bottom surface of the groove shape presses one axial end of the loop portion 35L. The other axial end of the loop portion 35L is pressed by the main plate portion 44 on the side of the body 642 and the cover 643 where the arm 650 is pivotally supported (here, the cover 643).

[0115] Fig. 16 is an exploded perspective view showing a support component 740 according to a seventh modified example. Fig. 16 is a view seen from the opposite side of Fig. 13 along the axial direction. Fig. 17 is a rear view showing the support component 740 according to the seventh modified example. Fig. 18 is a cross-sectional view taken along line XVIII-XVIII in Fig. 17.

[0116] In the support part 740, the support mode of the arm 750 by the protector 741 is similar to the support mode of the arm 650 by the protector 641. In other words, the arm 750 is supported by only one of the main body 742 and the cover 743 of the protector 741. In this example, the arm 650 is supported only by the cover 643 of the protector 641.

[0117] The main body 742 differs from the main body 642 in that no through-hole 644h is formed in the main plate portion 744. For this reason, the shaft portion 751 of the arm 750 and the bearing portion 746 of the cover 743 are not visible in the rear view shown in Fig. 17. Neither the through-hole 644h nor the bearing portion 746 is provided in the main plate portion 744. The center of both the inner and outer surfaces of the main plate portion 744 is a flat surface.

[0118] The cover 743 differs from the cover 743 in that the axial length of the central portion 746A of the bearing portion 746 is shorter than the axial length of the central portion 646A. The axial length of the central portion 746A is slightly shorter than the length of the hole 251A of the arm 750. This prevents the tip surface of the central portion 746A from hitting the main plate portion 744 of the main body 742.

[0119] Arm 750 differs from arm 650 in that a recess 751C is provided in shaft portion 751. The surface of arm 750 facing main plate portion 744 on the side not supported by the shaft (main body 742 in this case) is referred to as the facing surface. Recess 751C is formed on the periphery of the opening of hole 251A on the facing surface. Here, recess 751C may have an inclined surface that slopes from the facing surface toward the center of hole 251A, or may be a groove-like shape without an inclination. Recess 751C may be formed so that the opening portion of hole 251A on the facing surface has a larger diameter than the remaining portions. The tip surface of center portion 746A of bearing portion 746 does not have to reach the facing surface. The tip surface of center portion 746A of bearing portion 746 may be located at the position of recess 751C. The tip surface of center portion 746A of bearing portion 746 does not have to reach the position of recess 751C.

[0120] Fig. 19 is a diagram showing a wiring structure 820 of a wire harness according to an eighth modified example. Fig. 20 is an exploded perspective view showing a support component 840 according to the eighth modified example. Fig. 21 is a schematic cross-sectional view showing the wiring structure 820 of a wire harness according to the eighth modified example. In Fig. 21, only an intervening member 890 is shown in cross section. In each of Figs. 19 to 21, the cover 243 is omitted from the illustration.

[0121] In the wire harness routing structure 820, in the open state OS, the holding portion 852 of the arm 850 is located rearward of the center of the rotation shaft in the front-to-rear direction. This allows the wire harness 30 to be pulled out by a larger amount when a load F is applied to the free section 36 of the wire harness 30 in the open state OS, compared to when the holding portion 852 of the arm 850 is located forward of the center of the rotation shaft. The center line CL shown in FIG. 19 passes through the center of the rotation shaft of the arm 850 in the open state OS and is parallel to the up-down direction. In the open state OS, the holding portion 852 of the arm 850 is located rearward of the center line CL.

[0122] For example, the position of the protector 841 in the intermediate state IS in which the wire harness 30 is loosest may be closer in the front-rear direction to the position of the protector 841 in the open state OS than to the position of the protector 841 in the closed state CS. For example, in the front-rear direction, the position of the vehicle body support component 70 may be located rearward of the center between the position of the protector 841 in the open state OS and the position of the protector 841 in the closed state CS.

[0123] In the support part 840, the shapes of the protector 841 and the arm 850 are different from the shapes of the protector 41 and the arm 50. Like the protector 241 and the arm 250, the protector 841 and the arm 850 are formed into a shape that allows them to be biased by the torsion coil spring 260. Like the protector 41 and the arm 50, the protector 841 and the arm 850 may be formed into a shape that allows them to be biased by the helical spring 60.

[0124] The wiring harness routing structure 820 includes an intervening member 890. As described above, the intervening member 890 is interposed between the corrugated tube 33 and the arm 850. The intervening member 890 may be considered as a component of the exterior member, similar to the corrugated tube 33, or may be considered as a component of the support part 840, similar to the arm 850. The provision of the intervening member 890 makes it easier for the exterior member to rotate smoothly around an axis along the extension direction, compared to a case in which the holding part 852 rotatably holds the corrugated tube 33.

[0125] The intervening member 890 includes a harness attachment portion 891 attached to the wire harness 30 and an arm attachment portion 894 attached to the arm 850. Here, the arm attachment portion 894 is supported by the arm 850 so as to be rotatable about an axis along the extension direction of the wire harness 30 relative to the arm 850. The harness attachment portion 891 is attached to the wire harness 30 so as not to be rotatable about an axis along the extension direction of the wire harness 30 relative to the wire harness 30. Therefore, the intervening member 890, together with the wire harness 30, is rotatable about an axis along the extension direction of the wire harness 30 relative to the arm 850. When a torsional force is applied to the wire harness 30 when the sliding door 12 is opened or closed, the intervening member 890 rotates about the axis along the extension direction of the wire harness 30 relative to the arm 850, thereby dissipating the torsional force. This makes it possible to suppress twisting of the wire harness 30 when the sliding door 12 is opened or closed.

[0126] The harness mounting portion 891 clamps the corrugated tube 33. The harness mounting portion 891 has a cylindrical portion 892 and an uneven portion 893. The uneven portion 893 is provided on the inner surface of the cylindrical portion 892. The uneven portion 893 corresponds to the unevenness of the corrugated tube 33. The uneven portion 893 has a convex portion 893a and a concave portion 893b. The convex portion 893a and the concave portion 893b have the same configuration as the convex portion 52a and the concave portion 52b of the holding portion 52 of the arm 50 described above.

[0127] The arm attachment portion 894 has a cylindrical portion 895 and a protrusion 896. The protrusion 896 is provided on the outer surface of the cylindrical portion 895. The holding portion 852 of the arm 850 has a recess 852b into which the protrusion 896 fits. For example, the recess 852b is formed slightly larger than the protrusion 896 so that a gap is generated between the inner surface of the recess 852b and the outer surface of the protrusion 896. This allows the arm 850 and the interposition member 890 to rotate around an axis along the extension direction of the wire harness 30. The protrusion 896 has a larger protruding dimension than the protrusion 893a of the uneven portion 893. This makes it easy to configure the protrusion 896 to be more reliably caught in the extension direction while ensuring a gap between the protrusion 896 and the recess 852b.

[0128] The intervening member 890 is attached so that the harness attachment portion 891 is located closer to the vehicle body 10 in the extension direction of the wire harness 30 than the arm attachment portion 894. In the open state OS, the harness attachment portion 891 of the intervening member 890 is also located rearward of the center of the rotation axis in the front-to-rear direction, similar to the holding portion 852 of the arm 850. As shown in FIG. 19 , in the open state OS, the harness attachment portion 891 of the intervening member 890 is located rearward of the center line CL.

[0129] The tubular portion 895 of the arm attachment portion 894 is thinner than the tubular portion 892 of the harness attachment portion 891. The holding portion 852 of the arm 850 covers the tubular portion 895 but does not cover the tubular portion 892. The corrugated tube 33 is not located inside the holding portion 852 of the arm 850. This allows the holding portion 852 of the arm 850 to be made smaller in both the rotation axis direction and the radial direction compared to when the corrugated tube 33 is located inside the holding portion 852 of the arm 850.

[0130] The intervening member 890 may be configured so that the protrusion 896 of the arm mounting portion 894 is provided on the outer surface of the tubular portion 892 of the harness mounting portion 891. The intervening member 890 may be attached so that the arm mounting portion 894 is located closer to the vehicle body 10 in the extension direction of the wire harness 30 than the harness mounting portion 891. In these cases, the corrugated tube 33 may be configured to be located inside the holding portion 852 of the arm 850.

[0131] 21 , here, interposition member 890 is held by arm 850 so as to extend in a direction intersecting a tangent direction of a circle centered on the rotation center. This prevents the rotation radius of interposition member 890 from becoming larger than the rotation radius of arm 850, thereby preventing support component 840 from becoming larger in the radial direction. In the example shown in FIG. 21 , the angle between the tangent direction of the circle and the extension direction of interposition member 890 is 15 degrees. For example, the angle between the tangent direction of the circle and the extension direction of interposition member 890 may be greater than 0 degrees and less than 20 degrees.

[0132] The holding portion 852 of the arm 850 is composed of a first portion 852X and a second portion 852Y. The first portion 852X and the second portion 852Y are formed in a shape in which the holding portion 852 is split in half along the axial direction. The first portion 852X is provided integrally with the connecting portion 653. The second portion 852Y is provided separately from the first portion 852X. The second portion 852Y may be provided integrally with the first portion 852X via a hinge or the like. The second portion 852Y is attached to the first portion 852X by fastening or the like.

[0133] The insertion portion 847 in the main body 842 of the protector 841 is a groove rather than a hole. This makes it easier to insert the wire harness 30 into the insertion portion 847. The insertion portion 847 is provided by partially interrupting the peripheral wall portion 45 of the main body 842. At the position of the insertion portion 847, the peripheral wall portion 45 does not have a portion including the tip end in the protruding direction from the main plate portion 44, so that the groove-shaped insertion portion 847 is provided. In this case, the peripheral wall portion 45 is completely absent at the position of the insertion portion 847. The upper opening of the groove-shaped insertion portion 847 may be covered by a cover (not shown).

[0134] An inner peripheral wall 854a of the pressing portion 654 of the arm 850 protrudes radially outward from the inner peripheral wall of the connecting portion 653 relative to the center of rotation. This prevents the overlap of the loop portion 35L of the wire harness 30 from becoming longer in the extension direction in the closed state CS. Here, the inner peripheral wall of the connecting portion 653 is the outer peripheral surface of the shaft portion 251. The inner peripheral wall 854a of the pressing portion 654 protrudes radially outward from the outer peripheral surface of the shaft portion 251.

[0135] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory.

[0136] REFERENCE SIGNS LIST 10 Vehicle body 11 Entry / exit opening 12 Sliding door 13 Door panel 14 Door trim 15 Door arm 16 Weather strip 20, 120, 220, 320, 420, 520, 820 Wiring structure 30, 130, 530 Wire harness 31 Wiring member 32 Fiber tube (first exterior member) 33 Corrugated tube (second exterior member, exterior member) 34 First section 35, 135, 535 Second section 35A Held portion 35B First extending portion 35C, 535C Second extending portion 35D Intermediate extending portion 35E Second end extending portion 35I Intersecting portion 35L Loop portion 36 Floating section 37 First connector (first end) 38 Second connector (second end) 40, 240, 640, 740, 840 Support part 41, 241, 641, 741, 841 Protector 42, 242, 642, 742, 842 Main body 43, 243, 643, 743 Cover 44, 644, 744 Main plate portion 45 Peripheral wall portion 46, 246, 646, 746 Bearing portion 47, 247, 847 Insertion portion 48, 55, 248, 255 Spring support portion 50, 250, 350, 450, 550, 650, 750, 850 Arm 51, 251, 751 Shaft portion 52, 852 Holding portion 52a, 893a, 896 Convex portion 52b, 852b, 893b Concave portion 53, 653 Connecting portion 54, 354, 454, 654 Pressing portion 56 Guide groove 60 Helical spring (biasing member) 61, 261 Spring body 62, 63, 262, 263 Hook portion 70 Support component for vehicle body 180 Relay harness 181 Relay wiring member 182 Relay connector 247A Projecting piece 249 Restricting protrusion 251A Hole 251B First annular groove 257 Second annular groove 260 Torsion coil spring (biasing member) 646A, 746A Central portion 646B, 892, 895 Cylindrical portion 852X First portion 852Y Second portion 854a Inner peripheral wall 890 Interposition member 891 Harness mounting portion 893 Concave and recessed portion 894 Arm attachment part BD Binding member F Load CS Closed state IS Intermediate state OS Open state

Claims

1. A wiring structure for a wire harness connecting equipment provided on a vehicle body and equipment provided on a sliding structure, comprising: a wire harness including a first section supported on the vehicle body, a second section supported on the sliding structure, and a free section between the first section and the second section; and a support part supporting the second section on the sliding structure, wherein the support part includes a protector that houses the second section, an arm supported on the protector so as to be rotatable about a rotation axis, and a biasing member that biases the arm, wherein the arm has a shaft portion having the rotation axis, a retaining portion that retains the second section, a connecting portion that connects the shaft portion and the retaining portion and extends in the radial direction, and a pressing portion that extends from the shaft portion in a direction different from the connecting portion and presses the free section side of the second section relative to the retaining portion, The biasing member biases the arm around the rotation axis in a direction in which the free moving section side relative to the holding portion is accommodated within the protector.

2. A wiring harness arrangement structure as described in claim 1, wherein the second section includes a held portion held by the holding portion, an end of the second section, and an extending portion between the holding portion and the end, and the connecting portion covers the extending portion so that the extending portion is movable in the extending direction.

3. A wiring harness arrangement structure according to claim 2, wherein the pressing portion covers the extending portion so that the extending portion can move in the extending direction.

4. A wiring harness arrangement structure according to any one of claims 1 to 3, wherein the connecting portion and the pressing portion are connected in a circumferential direction of the shaft portion.

5. A wiring harness arrangement structure according to any one of claims 1 to 3, wherein the connecting portion and the pressing portion are spaced apart from each other along the circumferential direction of the shaft portion.

6. A wiring harness arrangement structure as claimed in any one of claims 1 to 3, wherein the wire harness includes a wiring member, a first exterior member wrapped around the wiring member on the end side of the second section further from the portion held by the holding portion, and a second exterior member wrapped around the wiring member on the vehicle body side further from the portion held by the holding portion, and the first exterior member is more easily bent than the second exterior member.

7. A wiring harness arrangement structure according to any one of claims 1 to 3, wherein the wire harness includes a wiring member and an exterior member wrapped around the wiring member in a portion extending from the free section to the holding portion, and the holding portion holds the exterior member rotatably around an axis along the extension direction.

8. A wiring structure for a wire harness as described in claim 7, wherein the exterior member has a corrugated tube and an intervening member wrapped around the corrugated tube, the holding portion holds the intervening member rotatably about the axis along the extension direction, and the intervening member rotates integrally with the corrugated tube about the axis along the extension direction.

9. A wiring structure for a wire harness as described in any one of claims 1 to 3, wherein the wire harness includes a first end on the first section side and a second end on the second section side, the second end being located outside the protector, and the wire harness includes a protector fixing portion fixed to the protector between a portion held by the holding portion and the second end, and a second end side extending portion extending from the protector fixing portion through the protector toward the second end.

10. A wiring structure for a wire harness as described in any one of claims 1 to 3, wherein the wire harness includes a first end portion on the side of the first section and a second end portion on the side of the second section, and the second end portion is fixed to the protector.

11. A wiring harness arrangement structure according to any one of claims 1 to 3, wherein the biasing member is a torsion coil spring or a helical spring.

Images