Wire harness routing structure

Abstract

To provide technique capable of reducing an accommodation space of a wire harness in a slide structure as much as possible.SOLUTION: A wire harness routing structure includes a wire harness and a support component. The second section of the wire harness has a loop portion. The support component includes a protector that accommodates the loop portion, an arm that is supported by the protector so as to be rotatable about a rotational axis, and a biasing member that biases the arm. The arm has: a shaft part that has the rotational axis and is positioned inside the loop part; a holding part that holds the second section; and a connection part that connects the shaft part and the holding part and extends in a radial direction. When a slide structure slides relative to a vehicle body between a first position and a second position, the length of a floating section and the size of the loop portion change. The biasing member biases the arm in a direction in which the size of the loop portion increases around the rotational axis.SELECTED DRAWING: Figure 2

Description

[Technical field]

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

[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 supported rotatably, a wire harness fixed at one end to the tip side of the link arm and at the other end to the fixed structure side, and an elastic member that biases the link arm upward and forward, and is disposed on a vertically disposed sliding structure, and is characterized in that when the sliding structure is fully closed forward, the link arm rotates 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 backward, the link arm rotates upward and frontward due to the restoring force of the elastic member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-228704 A Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable that the space required for accommodating the wire harness within the slide structure be as small as possible.

[0005] Therefore, an object of the present invention is to provide a technique for minimizing the space required to accommodate the wire harness within the slide structure. [Means for solving the problem]

[0006] The wiring structure of the wire harness disclosed herein 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, wherein the second section has a loop portion in which the wire harness is routed in a loop shape, and the support part includes a protector that houses the loop portion and a support part that supports the protector so as to be rotatable around a rotation axis. The wiring structure for a wire harness includes an arm supported by a protector and a biasing member that biases the arm, the arm having an axis portion having the rotation axis and positioned inside the loop portion, a holding portion that holds the second section, and a connecting portion that extends radially and connects the axis portion and the holding portion, and when the sliding structure slides between a first position and a second position relative to the vehicle body, the length of the free moving section and the size of the loop portion change, and the biasing member biases the arm in a direction around the rotation axis such that the size of the loop portion increases. Effect of the Invention

[0007] According to the present disclosure, the space required for accommodating the wire harness within the slide structure can be made as small as possible. [Brief description of the drawings]

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

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

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

[0011] (1) A wiring structure of 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 second section having a loop portion in which the wire harness is routed in a loop shape, the support part having a protector that houses the loop portion, and a wire harness supported on the protector so as to be rotatable around a rotation axis. and a biasing member biasing the arm, wherein the arm has an axle portion having the rotation axis and positioned inside the loop portion, a holding portion holding the second section, and a connecting portion extending radially connecting the axle portion and the holding portion, wherein when the sliding structure slides between a first position and a second position relative to the vehicle body, the length of the free moving section and the size of the loop portion change, and the biasing member biases the arm around the rotation axis in a direction that increases the size of the loop portion.

[0012] According to the wiring structure of the wire harness of (1), the excess length of the wire harness is absorbed and drawn out by changing the size of the loop portion, which allows the space required to accommodate the wire harness in the sliding structure to be smaller than that required when the second section does not have a loop portion for absorbing and drawing out the excess length.

[0013] (2) In the wiring structure of the wire harness of (1), the holding portion may hold a portion of the second section that is outside the loop portion and extends along the loop portion, and the connecting portion may cover the loop portion at a portion where the connecting portion intersects with the loop portion so that the loop portion can move in the extension direction. This allows the loop portion to smoothly change size.

[0014] (3) In the wiring harness arrangement structure of (1) or (2), the wire harness may include a wiring member, a first exterior member that is attached to the wiring member at the loop portion, and a second exterior member that is attached to the wiring member on a side closer to the vehicle body than the loop portion, and the first exterior member may be more easily bent than the second exterior member. This allows the size to be smoothly changed even if an exterior member is provided at the loop portion.

[0015] (4) In the wiring harness arrangement structure of any one of (1) to (3), the wire harness may include a wiring member and an exterior member that is exteriorly attached to 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 about 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. Even in this case, by the holding section holding the exterior member rotatably about an axis along the extension direction, twisting of the exterior member is less likely to occur.

[0016] (5) In the wiring structure of any one of (1) to (4), 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 the loop 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 suppress a change in length of the second end side extending portion when the size of the loop portion changes.

[0017] (6) In the wiring structure of any one of (1) to (4), 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. In this way, by disposing the protector on the sliding structure, most of the wiring harness can be routed on the sliding structure.

[0018] (7) In any one of the wiring harness arrangement structures of (1) to (6), the rotation shaft may extend horizontally, and the holding portion may be at the same height as or higher than the rotation shaft. This makes it easy to smoothly change the size of the loop portion by operating the upper side of the loop portion opposite to the hanging portion below the rotation shaft.

[0019] (8) In any one of the wiring harness arrangement structures of (1) to (7), the sliding structure may be a sliding door, the rotation axis extends horizontally, and the holding portion may be located at the same position as or further forward than the rotation axis when the sliding door is closed, and located rearward of the rotation axis at an intermediate position between the closed and open positions. This allows the holding portion to move beyond the rotation axis in the front-rear direction, making it easy to increase the amount of movement of the holding portion.

[0020] In the wiring structure of the wire harness of (9) and (8), the holding portion may be located rearward of the rotation shaft when the sliding door is open. This prevents the wire harness from being pulled out and causing a large tension in the wire harness even if the free section is stepped on when the sliding door is open.

[0021] (10) In the wiring structure of any one of (1) to (9), the arm may include a pressing portion extending from the shaft portion in a direction different from the connecting portion and pressing the second section on the side of the floating section from the holding portion, whereby when the size of the loop portion changes, the portion of the second section extending from the holding portion to the pressing portion tends to maintain a constant radius of curvature.

[0022] (11) In the wiring harness arrangement 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 of the claims.

[0024] [Embodiment 1] Hereinafter, the wiring structure of the wire harness according to the first embodiment will be described. The wiring structure of the wire harness is a wiring structure of the wire harness that connects a device provided in a vehicle body and a device provided in a sliding structure. In this embodiment, an example in which the sliding structure is a sliding door will be described. 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 of a wire harness according to a first embodiment. The front-rear direction (FRONT, REAR) shown in Fig. 1 and the like corresponds to the front-rear direction in a vehicle. The inside-outside direction (IN, OUT) shown in Fig. 1 and the like corresponds to the inside-outside direction with respect to the side of the vehicle in the left-right direction in the vehicle. Specifically, Fig. 1 shows the left side of the vehicle, and the right side of the left side of the vehicle (lower side on the paper) is the inside of the vehicle, and the left side of the left side of the vehicle (upper side on the paper) is the outside of the vehicle. The up-down direction (UP, LOW) shown in Fig. 5, which will be described later, corresponds to the up-down direction in the vehicle.

[0026] First, a relationship between the wiring structure 20 of the wire harness and the vehicle body 10 and the sliding door 12 to which the wiring structure 20 is applied will be described. In Fig. 1, the wiring structure 20 of the wire harness shown by a solid line shows a state in which the sliding door 12 is open, and the wiring structure 20 of the wire harness shown by a two-dot chain line shows a state in which the sliding door 12 is closed. In Fig. 1, some members 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 opening 11 for passengers to get on and off the vehicle at a side thereof. A sliding door 12 is slidably supported by the vehicle body 10. The opening 11 for passengers to get on and off is opened and closed by the sliding door 12 sliding. The sliding door 12 includes a door panel 13 that defines the appearance 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 by a support rail that is disposed on the vehicle body 10. A weather strip 16 is disposed around the periphery of the opening 11 for passengers to get on and off so as to come into contact with the door panel 13 and the vehicle body 10. For example, the weather strip 16 is disposed in a ring shape on 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 (such as 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 part 40 that supports the wire harness 30 on the sliding door 12, and a vehicle-body support part 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 a door-side device and a vehicle-body-side device, and an exterior member that is sheathed to the wiring member 31. The wiring member 31 is, for example, an electric wire or an optical fiber cable. The wiring member 31 may be one or more. The exterior member protects the wiring member 31 and bundles the multiple wiring members 31. Here, 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 of which has 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. In FIG. 1, the end portion of the corrugated tube 33 is depicted in a shape that conforms to the original shape of the corrugated tube 33 having an uneven shape, but the middle portion of the corrugated tube 33 is depicted in a simplified shape that omits the uneven shape. The same is true in FIG. 2 and the 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 from one another along the extension direction of the wire harness 30.

[0031] The first section 34 is supported by the vehicle body 10 by a vehicle body support part 70. The first section 34 is held by the vehicle body 10 when the sliding door 12 is opened or closed. The first section 34 is disposed, for example, above a 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 for leading out the wire harness 30 around the entry / exit opening 11. The vehicle body support part 70 shown in FIG. 1 supports a portion of the first section 34 that is connected to 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 the support part 40. When the sliding door 12 is opened or closed, the second section 35 is held by the sliding door 12 and moves together with the sliding door 12 relative to the vehicle body 10. Here, when the sliding door 12 is opened or closed, a part of the second section 35 is supported by the support part 40 so as to move along a fixed path relative to the sliding door 12. The second section 35 is disposed between the door panel 13 and the door trim 14, so that exposure of the second section 35 is suppressed. The door trim 14 is provided with a door-side harness opening through which the wire harness 30 is led out. The door-side harness opening is provided, for example, in a lower part of the door trim 14. The 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 freely relative to the vehicle body 10 and the sliding door 12, as compared with 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, and moves and changes 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 by the vehicle body 10 by a vehicle body support part 70. The other end of the corrugated tube 33 extends to the second section 35 and is supported by the sliding door 12 by a support part 40.

[0034] Here, the free movement section 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 movement section 36 is exposed. For example, the exposed section is a portion of the free movement section 36 between the vehicle body side harness opening and the door side harness opening. The exposed section is a portion that is exposed at a position that is as unlikely to interfere with passengers getting on and off, such as a position at the rear and lower part of the entry / exit opening 11, but may be stepped on by passengers.

[0035] In the following, the state in which the sliding door 12 is closed is referred to as the closed state. The state in which the sliding door 12 is open is 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 may be referred to as the first open state. Also, in the open state, the state in which the load F (see FIG. 6) is applied to the exposed section when stepped on may be referred to as the second open state.

[0036] Each part of the wiring structure 20 of the wire harness will be described in more detail. FIG. 2 is a front view showing the wiring structure 20 of the wire harness according to the first embodiment. FIG. 3 is an exploded perspective view showing the support part 40 of the first embodiment. In FIG. 3, the cover 43 shown by the imaginary line is shown in a state in which it is normally attached to the main body 42, and the cover 43 shown by the solid line is shown in a state rotated 180 degrees from the state shown by the imaginary line. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. FIGS. 5 and 6 are explanatory diagrams showing how the wire harness 30 is deformed with the movement of the sliding structure 12. FIG. 5 is a perspective view, and FIG. 6 is a front view. In each of FIGS. 5 and 6, the wiring structure 20 in each of the closed state CS, the intermediate state IS, and the open state OS is shown. The intermediate state IS shown in FIGS. 5 and 6 is, for example, a state in which the protector 41 is at the same position as the vehicle body support part 70 in the front-rear direction.

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

[0040] The second section 35 has a loop portion 35L. The loop portion 35L is a portion where the wire harness 30 is arranged 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. At the end of the loop portion 35L, an intersection portion 35I where the wire harness 30 intersects is provided. 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 member in which a fiber fabric such as a knitted fabric or a woven fabric is formed into a tube shape. The fiber tube 32 is an example of a first exterior member that is applied to the wiring member 31 at the loop portion 35L. The corrugated tube 33 is an example of a second exterior member that is applied 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 applied to the wiring member 31 at a 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 easier to bend 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 exteriorizing the loop portion 35L with the fiber tube 32, which is easier to bend than the corrugated tube 33, 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 freely movable manner along the extending direction. This makes the wiring member 31 less susceptible to the effect of an external force applied to the corrugated tube 33. Specifically, the wiring member 31 simply passes through the inside 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 be twisted. In addition, when the middle part of the corrugated tube 33 is pressed in a direction intersecting the axial direction, the corrugated tube 33 bends as if pulled in the pushed direction while reducing the difference in the concave and convex parts, and can be stretched and deformed to become longer. At this time, when the wiring member 31 is pressed by the corrugated tube 33, the wiring member 31 moves freely along the extending direction, and the tension applied to the wiring member 31 is prevented from increasing.

[0045] The wiring member 31 may be fixed to the fiber tube 32 so as not to move along the extending 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 an adhesive tape or a cable tie.

[0046] The protector 41 accommodates the second section 35. The protector 41 accommodates 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 products. The main body 42 and the cover 43 may be configured to maintain the combined state by a locking structure integrally provided with the main body 42 and the cover 43. The main body 42 and the cover 43 may also be configured to maintain the combined state by a fastening structure using a fastening member such as a bolt. Each of the main body 42 and the cover 43 has 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 only on one side.

[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 periphery of the main plate portion 44. The peripheral wall portion 45 is not provided around the entire outer periphery 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. The other 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 floating section 36 through the opening extends outside the protector 41. In this case, the opening is provided on the lower edge 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 and 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. Here, 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. 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 in 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, for example, the main body 42 and the 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 along the horizontal direction. 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 portion 46 of the main body 42 and the bearing portion 46 of 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 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 concaves and convexes 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. In addition, 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 as not to 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 shaft 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 moving 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 shaft or higher.

[0057] 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 on opposite sides of the rotation axis. The holding portion 52 is located at the same height as or further forward than the rotation axis in the closed state CS. The holding portion 52 is located rearward of the rotation axis in the intermediate state IS. 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 from the shaft portion 51 in the radial direction.

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

[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. A part of the pressing portion 54 along the circumferential direction is connected to the connecting portion 53. 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.

[0061] 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 connecting portion 53 and the pressing portion 54 are also formed to be larger in diameter than the loop portion 35L and do not clamp the loop portion 35L.

[0062] Here, the connecting portion 53 and the pressing portion 54 are cylindrical or rectangular, and a part 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 periphery of the loop portion 35L, and an outer wall portion covering the outer periphery 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 periphery of the holding portion 52 forms the outer wall portion. The outer wall portion of the pressing portion 54 holds the first extending portion 35B so that the first extending portion 35B does not bend toward the inner periphery. 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. 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.

[0063] 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 storage portion and a support shaft. The storage 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 to connect the pair of side walls to one end of the storage portion. A portion of the urging member 60 fits into the storage portion, and one end of the urging member 60 is hooked onto the support shaft.

[0064] 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 stably move 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.

[0065] The biasing member 60 biases the arm 50 in a direction around the rotation axis to accommodate the free section 36 side relative to the holding portion 52 within the protector 41. The biasing member 60 biases the arm 50 in a direction to increase the size of the loop portion 35L around the rotation axis. The biasing member 60 is a helical spring 60. The helical spring 60 includes a spring body 61 and hook portions 62, 63 provided at 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 part of the spring body 61 fits into the housing portion of the spring support portion 55 of the arm 50. The hook portion 62 is hooked and supported by the support shaft of the spring support portion 55 of the arm 50. The hook portion 63 is hooked 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. This causes the spring body 61 to expand and contract when the arm 50 rotates.

[0066] The biasing member 60 may always bias the arm 50 in the same direction during opening and closing of the sliding door 12. For example, the spring body 61 may be in a state where the extra length is at its maximum (intermediate state IS in FIG. 5) or in a state where it is stretched beyond its natural length.

[0067] 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 becomes shorter, the size of the loop portion 35L becomes larger. When the length of the free movement section 36 becomes longer, the size of the loop portion 35L becomes smaller. The size of the loop portion 35L can be regarded as 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.

[0068] At the intermediate position between the first position and the second position, the length of the free moving section 36 is the shortest and the size of the loop portion 35L is the largest. At at least one of the first position and the second position, the length of the free moving section 36 is the longest and the size of the loop portion 35L is the smallest. Here, at the first position, the length of the free moving section 36 is the longest and the size of the loop portion 35L is the smallest. At the second position, the length of the free moving 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 minimum size at the first position and the maximum size at the intermediate position.

[0069] When the sliding structure 12 slides from the first position toward the intermediate position relative to the vehicle body 10, 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 from the intermediate position toward the second position relative to the vehicle body 10, the length of the free movement section 36 becomes longer and the size of the loop portion 35L becomes smaller.

[0070] When the sliding structure 12 slides from the second position toward the intermediate position relative to the vehicle body 10, 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 from the intermediate position toward the first position relative to the vehicle body 10, the length of the free movement section 36 becomes longer and the size of the loop portion 35L becomes smaller.

[0071] 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 to enter 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 a position that 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.

[0072] <Effects, etc.> According to the wiring structure 20 of the wire harness configured as described above, the excess length of the wire harness 30 is absorbed and drawn out by changing the size of the loop portion 35L. This makes it possible to reduce the space required to accommodate the wire harness 30 in the sliding structure 12 compared to a case in which the second section 35 does not have the loop portion 35L for absorbing and drawing out the excess length. In particular, the space required to absorb the excess length of the wire harness 30 in the sliding structure 12 can be reduced.

[0073] Furthermore, at the portion where the connecting portion 53 intersects with the loop portion 35L, the connecting portion 53 covers the loop portion 35L so that the loop portion 35L can move in the extension direction, thereby allowing the size of the loop portion 35L to be smoothly changed.

[0074] Furthermore, the first exterior member that is fitted around the loop portion 35L is easier to bend than the corrugated tube 33 that serves as the second exterior member. This allows the size of the loop portion 35L to be smoothly changed even when an exterior member is provided around the loop portion 35L.

[0075] Furthermore, the holding portion 52 holds the corrugated tube 33 rotatably around an axis along the extension direction. Here, a twisting force may be applied to the corrugated tube 33 in the free movement section 36 during the sliding movement of the sliding structure 12. Since the holding portion 52 holds the corrugated tube 33 rotatably around an axis along the extension direction, twisting of the corrugated tube 33 is less likely to occur.

[0076] Moreover, the wire harness 30 includes a protector fixing portion fixed to the protector 41 between the loop portion 35L and the second end portion 38, and a second end side extending portion 35E extending from the protector fixing portion through the protector 41 toward the second end portion 38. This makes it possible to suppress a change in the length of the second end side extending portion 35E when the size of the loop portion 35L changes.

[0077] In addition, the holding portion 52 is at the same height as or higher than the horizontally extending rotation axis, which makes it easy to smoothly change the size of the loop portion 35L by operating the upper side of the loop portion 35L opposite to the hanging portion below the rotation axis.

[0078] In addition, the holding portion 52 is located at the same position as or further forward than the rotation axis when the sliding door 12 is closed, and is located rearward of the rotation axis at an intermediate position between the closed and open positions. This allows the holding portion 52 to move beyond the rotation axis in the front-rear direction, making it easy to increase the amount of movement of the holding portion 52.

[0079] Furthermore, the arm 50 includes a pressing portion 54 that extends from the shaft portion 51 in a direction different from the connecting portion 53 and presses the second section 35 toward the free section 36 side from the holding portion 52. This makes it easier for the portion of the second section 35 extending from the holding portion 52 to the pressing portion 54 to maintain a constant radius of curvature when the size of the loop portion 35L changes.

[0080] Moreover, the biasing member 60 is a helical spring 60. This allows the biasing member 60 to be provided easily.

[0081] [Note] FIG. 7 is a front view showing a wiring harness arrangement structure 120 according to a first modified example.

[0082] 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 side extension portion 35E is omitted, and the second end portion 38 is fixed to the protector 41. As a result, by disposing the protector 41 in the sliding door 12, most of the wire harness 130 is routed in the sliding door 12.

[0083] 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, a relay harness 180 that is connected to the second connector 38 is provided in the sliding door 12. 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.

[0084] Fig. 8 is a front view showing a wiring harness arrangement structure 220 according to the second modified example. Fig. 9 is an exploded perspective view showing a support part 240 according to the second modified example.

[0085] 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 well, similar to the case of the helical spring 60, the biasing member 260 can be easily provided.

[0086] 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 formed of a wire material in a coil shape. Spring body 261 is disposed coaxially with shaft portion 251. Spring body 261 is formed to have a larger diameter than shaft portion 251. Shaft portion 251 is disposed inside spring body 261. Hook portion 262 is formed of a wire material extending linearly from one end of coil-shaped spring body 261. Hook portion 263 is formed of a wire material extending in an L-shape from the other end of coil-shaped spring body 261.

[0087] The arm 250 and the protector 241 in the support part 240 have a configuration corresponding to the torsion coil spring 260 .

[0088] 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 houses 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 circumferential side of the hole portion 251A.

[0089] Arm 250 has an accommodating portion that accommodates spring body 261 of torsion coil spring 260. Here, second annular groove 257 provided on the outer circumferential side of first annular groove 251B serves as the accommodating portion that accommodates spring body 261.

[0090] 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 from the second annular groove 257 to the outer circumferential side. 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 located on the bottom side of the second annular groove 257 among the pair of walls forming the connecting portion 53. A through hole is formed in a second wall portion located on the opening side of the second annular groove 257 among the pair of walls forming the connecting portion 53, through which the hook portion 262 passes when the spring body 261 is placed in the second annular groove 257 from the opening side of the second annular groove 257.

[0091] 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 side of the holding portion 52. Therefore, the support part 240 can be made more compact in the radial direction than the support part 40.

[0092] The arm 250 does not have a guide groove 56. Therefore, the tips of 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.

[0093] The bearing portion 246 of the cover 243 in the protector 241 is formed in a cylindrical shape having a larger diameter than the bearing portion 46 of the main body 242. The bearing portion 246 fits into the first annular groove 251B.

[0094] 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.

[0095] 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. A through hole formed in a part of the peripheral wall portion 45 of the main body 242 or the cover 243 serves as the insertion portion 247.

[0096] The insertion portion 247 includes a protruding piece 247A protruding 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 cable tie or an adhesive tape. In this way, the base end of the second end side extension portion 35E is fixed to the protector 241.

[0097] The protector 241 may include a restricting protrusion 249. The restricting protrusion 249 protrudes from a part of the peripheral wall 45 toward the inner periphery. The restricting protrusion 249 comes into contact with the holding portion 52 to suppress further rotation of the arm 250. Here, the restricting protrusion 249 comes into contact with the arm 250 rotating in the direction biased by the biasing member 260. The restricting protrusion 249 comes into contact with the arm 250 in an intermediate state where the extra 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 biased by the biasing member 260.

[0098] FIG. 10 is a front view showing a wiring harness arrangement structure 320 according to the third modified example.

[0099] In this modified example, the shape of arm 350 is different from the shapes of arms 50 and 250 described above. Pressing portion 354 of arm 350 is not continuous with connecting portion 53 along the circumferential direction. Pressing portion 354 is provided at a position separated from connecting portion 53 along the circumferential direction. Pressing portion 354 has a shape obtained by removing the end portion on the connecting portion 53 side along the circumferential direction from pressing portion 54. In the circumferential direction, the dimension of pressing portion 354 is approximately the same as the dimension of connecting portion 53. The configuration of arm 350 other than pressing portion 354 is the same as that of arm 250 described above.

[0100] FIG. 11 is a front view showing a wiring harness arrangement structure 420 according to the fourth modified example.

[0101] In this modification, the shape of the arm 450 is different from the shapes of the arms 50, 250, and 350. The pressing portion 454 of the arm 450 extends from the shaft portion 251 to the side opposite 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 along the circumferential direction. Like the pressing portion 354, the pressing portion 454 is provided at a position separated from the connecting portion 53 along 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.

[0102] FIG. 12 is a front view showing a wiring harness arrangement structure 520 according to the fifth modified example.

[0103] In this modification, the shape of an arm 550 is different from the shapes of the above-described arms 50, 250, 350, 450. The arm 550 does not include a pressing portion 54, 354, 454. The configuration of the arm 550 is the same as that of the above-described arm 250, except that the pressing portion 54 is omitted. The arm 550 has a simpler configuration since it does not include the pressing portions 54, 354, 454.

[0104] 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 a support part 640 according to the sixth modified example. Fig. 15 is a cross-sectional view taken along the line XV-XV in Fig. 14.

[0105] In the supporting part 640, the manner in which the arm 650 is supported by the protector 641 is different from the supporting manners so far. Specifically, the arm 650 is supported by only one of the main body 642 and the cover 643 of the protector 641. Here, the arm 650 is supported only by the cover 643 of the protector 641. Note that, although the supporting part 640 will be described as an example using the torsion coil spring 260 like the supporting part 240, it is also applicable to an example using the helical spring 60.

[0106] As shown in Fig. 13, the main plate portion 644 of the main body 642 is not provided with a bearing portion 46. Instead, the bearing portion 646 provided in the cover 643 is longer than the bearing portion 246 of the cover 243 so that the bearing portion 646 can support the shaft portion 251 by itself. The bearing portion 646 has a central portion 646A that fits into the hole portion 251A of the shaft portion 251, and a cylindrical portion 646B that fits into the first annular groove 251B of the shaft portion 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 portion 251A.

[0107] 13, a through hole 644h is formed in the main plate portion 644 of the body 642 of the protector 641 at the position where the bearing portion 46 is provided, instead of the bearing portion 46. 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 portion 251A. This prevents the tip surface of the central portion 646A from hitting the main plate portion 644 of the body 642.

[0108] 15, arm 650 is spaced apart from the side (main body 642 in this case) that is not supported by the shaft of main body 642 and cover 643 by a distance D in the axial direction. 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.

[0109] 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 formed in a groove shape, not a cylindrical shape like the pressing portion 354 and the connecting portion 53. This makes it easy 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 provided at a position close to the side (here, the main body 642) of the main body 642 and the cover 643 on which the arm 650 is not pivotally supported. The bottom surface of the groove shape presses one side along the axial direction of the loop portion 35L. The other end of loop portion 35L along the axial direction is pressed by main plate portion 44 on the side of body 642 and cover 643 on which arm 650 is pivotally supported (here, cover 643).

[0110] Fig. 16 is an exploded perspective view showing a support part 740 according to a seventh modified example. Fig. 16 is a view seen from the opposite side to Fig. 13 along the axial direction. Fig. 17 is a rear view showing the support part 740 according to the seventh modified example. Fig. 18 is a cross-sectional view taken along line XVIII-XVIII in Fig. 17.

[0111] In the supporting part 740, the manner in which the protector 741 supports the arm 750 is similar to the manner in which the protector 641 supports the arm 650. That is, the arm 750 is supported by only one of the main body 742 and the cover 743 of the protector 741. Here, the arm 650 is supported only by the cover 643 of the protector 641.

[0112] The main body 742 differs from the main body 642 in that the through hole 644h is not 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 observed in the rear view shown in Fig. 17. Neither the through hole 644h nor the bearing portion 46 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.

[0113] Cover 743 differs from cover 743 in that the axial length of center portion 746A of bearing portion 746 is shorter than the axial length of center portion 646A. The axial length of center portion 746A is slightly shorter than the length of hole portion 251A of arm 750. This prevents the tip surface of center portion 746A from hitting main plate portion 744 of main body 742.

[0114] The arm 750 is different from the arm 650 in that the shaft portion 751 is provided with a recess 751C. The surface of the arm 750 facing the main plate portion 744 on the side not supported by the shaft (here, the main body 742) is defined as the facing surface. The recess 751C is formed on the opening periphery of the facing surface of the hole portion 251A. Here, the recess 751C may have an inclined surface that inclines from the facing surface toward the center of the hole portion 251A, or may be a groove shape without inclination. The recess 751C may be formed so that the opening portion of the facing surface of the hole portion 251A has a larger diameter than the other portions. The tip surface of the center portion 746A of the bearing portion 746 may not reach the facing surface. The tip surface of the center portion 746A of the bearing portion 746 may be at the position of the recess 751C. The tip surface of the center portion 746A of the bearing portion 746 may not reach the position of the recess 751C.

[0115] 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 part 840 of the eighth modified example. Fig. 21 is a schematic cross-sectional view showing a 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 illustration of the cover 243 is omitted.

[0116] 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 along the front-rear direction. This allows the wire harness 30 to be pulled out more 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 is a line that 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.

[0117] For example, the position of the protector 841 in the intermediate state IS in which the wire harness 30 is loosest may be closer to the position of the protector 841 in the open state OS in the front-rear direction than the position of the protector 841 in the closed state CS. For example, 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 in the front-rear direction.

[0118] In the support part 840, the shapes of the protector 841 and the arm 850 are different from the shapes of the above-described protector 41 and the arm 50. The protector 841 and the arm 850 are formed into a shape that is biased by the torsion coil spring 260, similar to the above-described protector 241 and the arm 250. The protector 841 and the arm 850 may be formed into a shape that is biased by the helical spring 60, similar to the above-described protector 41 and the arm 50.

[0119] 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 regarded as one component of the exterior member, similar to the corrugated tube 33, or may be regarded as one component of the support part 840, similar to the arm 850. By providing the intervening member 890, the exterior member can more easily 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.

[0120] 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 around 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 around an axis along the extension direction of the wire harness 30 relative to the wire harness 30. Therefore, the intervening member 890 can rotate together with the wire harness 30 around an axis along the extension direction of the wire harness 30 relative to the arm 850. When a twisting force is applied to the wire harness 30 when the sliding door 12 is opened or closed, the intervening member 890 rotates around an axis along the extension direction of the wire harness 30 relative to the arm 850, thereby dissipating the twisting force. This makes it possible to suppress twisting of the wire harness 30 when the sliding door 12 is opened or closed.

[0121] The harness attachment portion 891 clamps the corrugated tube 33. The harness attachment 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.

[0122] The arm attachment portion 894 has a cylindrical portion 895 and a protruding portion 896. The protruding portion 896 is provided on the outer surface of the cylindrical portion 895. The holding portion 852 of the arm 850 has a recessed portion 852b into which the protruding portion 896 fits. For example, the recessed portion 852b is formed slightly larger than the protruding portion 896 so that a gap is generated between the inner surface of the recessed portion 852b and the outer surface of the protruding portion 896. This allows the arm 850 and the intervening member 890 to rotate around an axis along the extension direction of the wire harness 30. The protruding portion 896 has a larger protruding dimension than the protruding portion 893a of the uneven portion 893. It is easy to configure the protruding portion 896 to be more reliably caught in the extension direction while ensuring a gap between the protruding portion 896 and the recessed portion 852b.

[0123] The intervening member 890 is attached such 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-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.

[0124] A tubular portion 895 of the arm attachment portion 894 is thinner than a tubular portion 892 of the harness attachment portion 891. A 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 positioned 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 a case in which the corrugated tube 33 is positioned inside the holding portion 852 of the arm 850.

[0125] The intervening member 890 may be configured such that a protrusion 896 of the arm attachment portion 894 is provided on the outer surface of a tubular portion 892 of the harness attachment portion 891. The intervening member 890 may be attached such that the arm attachment portion 894 is located closer to the vehicle body 10 in the extension direction of the wire harness 30 than the harness attachment portion 891. In these cases, the corrugated tube 33 may be configured to be located inside the holding portion 852 of the arm 850.

[0126] 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 center of rotation. This makes it possible to prevent the rotation radius of interposition member 890 from becoming larger than the rotation radius of arm 850, thereby making it possible to prevent 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.

[0127] 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.

[0128] The insertion portion 847 in the main body 842 of the protector 841 is a groove, not a hole. This makes it easier to insert the wire harness 30 into the insertion portion 847. The insertion portion 847 is provided by interrupting a part of the peripheral wall portion 45 of the main body 842. At the position of the insertion portion 847, there is no part of the peripheral wall portion 45 including the tip in the protruding direction from the main plate portion 44, so that the groove-shaped insertion portion 847 is provided. Here, there is no peripheral wall portion 45 at the position of the insertion portion 847. An upper opening of the groove-shaped insertion portion 847 may be covered by a cover not shown.

[0129] 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 makes it possible to prevent the overlap of the loop portions 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.

[0130] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0131] 10. Body 11 Passenger access 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 Wire harness 31 Wiring materials 32 Fiber tube (first exterior member) 33 Corrugated tube (second exterior member, exterior member) 34 First Section 35, 135 2nd Section 35A Holding part 35B 1st extension part 35C 2nd extension part 35D Intermediate extension 35E Second end side extension part 35I Intersection 35L Loop section 36 Free Range Section 37 First connector (first end) 38 Second connector (second end) 40, 240, 640, 740, 840 Support parts 41, 241, 641, 741, 841 Protector 42, 242, 642, 742, 842 Main unit 43, 243, 643, 743 Cover 44, 644, 744 Main plate part 45 Peripheral wall section 46, 246, 646, 746 Bearing section 47, 247, 847 Insertion part 48, 55, 248, 255 Spring support 50, 250, 350, 450, 550, 650, 750, 850 Arm 51, 251, 751 Shaft 52, 852 Holding part 52a, 893a, 896 convex part 52b, 852b, 893b recess 53, 653 connection part 54, 354, 454, 654 Presser section 56 Guide groove 60 String spring (biasing member) 61, 261 Spring body 62, 63, 262, 263 Hook part 70 Body support parts 180 Relay Harness 181 Relay wiring materials 182 Relay connector 247A Projecting piece 249 Regulatory protrusion 251A Hole 251B First annular groove 257 Second Circular Groove 260 Torsion coil spring (biasing member) 646A, 746A center part 646B, 892, 895 Cylindrical part 852X Part 1 852Y 2nd part 854a Inner wall 890 Intervening member 891 Harness attachment part 893 Uneven part 894 Arm attachment part BD Binding Material F load CS closed state IS Intermediate state OS open state

Claims

1. A wiring structure for a wire harness that connects a device provided on a vehicle body and a device provided on a slide structure, a wire harness including a first section supported by the vehicle body, a second section supported by the sliding structure, and a floating section between the first section and the second section; A support part that supports the second section on the slide structure; Equipped with The second section has a loop portion in which the wire harness is arranged in a loop shape, the support component includes a protector that houses the loop portion, 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 has a shaft portion having the rotation axis and located inside the loop portion, a holding portion that holds the second section, and a connecting portion that connects the shaft portion and the holding portion and extends in a radial direction, When the sliding structure slides between a first position and a second position relative to the vehicle body, the length of the free movement section and the size of the loop portion change, The biasing member biases the arm in a direction in which the size of the loop portion increases around the rotation axis.

2. The wiring harness arrangement structure according to claim 1, the holding portion holds a portion of the second section that is outside the loop portion and extends along the loop portion, The connecting portion covers the loop portion at a portion where the connecting portion intersects with the loop portion so that the loop portion is movable in an extension direction.

3. The wiring harness arrangement structure according to claim 1 or 2, the wire harness includes a wiring member, a first exterior member that is wrapped around the wiring member at the loop portion, and a second exterior member that is wrapped around the wiring member on a side closer to the vehicle body than the loop portion, The first exterior member is more easily bent than the second exterior member.

4. The wiring harness arrangement structure according to claim 1 or 2, The wire harness includes a wiring member and an exterior member that is exteriorly disposed on the wiring member in a portion extending from the free movement section to the holding portion, The holding portion holds the exterior member rotatably about an axis along an extension direction of the exterior member.

5. The wiring harness arrangement structure according to claim 1 or 2, The wire harness includes a first end portion on the first section side and a second end portion on the second section side, The second end is located outside the protector, The wire harness includes a protector fixing portion fixed to the protector between the loop 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.

6. The wiring harness arrangement structure according to claim 1 or 2, The wire harness includes a first end portion on the first section side and a second end portion on the second section side, The second end is fixed to the protector.

7. The wiring harness arrangement structure according to claim 1 or 2, The rotation axis extends horizontally, The wiring structure for a wire harness, wherein the holding portion is at the same height as or higher than the rotation shaft.

8. The wiring harness arrangement structure according to claim 1 or 2, The sliding structure is a sliding door, The rotation axis extends horizontally, The retaining portion is located at the same position as or further forward than the rotation axis when the sliding door is closed, and is located rearward of the rotation axis at an intermediate position between the closed and open positions.

9. The wiring harness arrangement structure according to claim 8, The holding portion is located rearward of the rotation shaft when the sliding door is open.

10. The wiring harness arrangement structure according to claim 1 or 2, The arm includes a pressing portion that extends from the shaft portion in a direction different from the connecting portion and presses a portion of the second section that is closer to the floating section than the holding portion.

11. The wiring harness arrangement structure according to claim 1 or 2, The biasing member is a torsion coil spring or a helical spring.

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