Wire Harness

Abstract

To cause a harness body to follow the movement of a link mechanism without overloading.SOLUTION: A harness body 10 has a third wiring part 13 that is guided toward a to-be-fixed part 522 on a slide door 520 side by a harness guide tool 40 of the other end part 612 of a first arm member 610 on a vehicle body 510 side and has a fixing part 13a fixed to the to-be-fixed part. A link mechanism 600 includes a second arm member 620 on the slide door side that is connected to the other end part of the first arm member via a second rotary shaft 641. The harness guide tool guides the third wiring part toward the to-be-fixed part located in a direction that intersects an operating plane Pm of the link mechanism with reference to the self. The to-be-fixed part is to be provided in a direction that intersects the operating plane with reference to the harness guide tool on a plane Pi where each axis center of the second rotary shaft and a third rotary shaft exists when a relative rotary position of the second arm member around an axis of a third rotary shaft 651 with reference to the slide door is the center position of a swing width Wθ of the relative rotation.SELECTED DRAWING: Figure 10

Description

[Technical field]

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

[0002] Conventionally, vehicles such as automobiles are equipped with wire harnesses that electrically connect a power source (secondary battery, etc.) and electrical components on the vehicle body side to switches and electrical components on the sliding door side. This wire harness has a harness main body routed between the vehicle body and the sliding door, and the route of the harness main body changes in conjunction with the opening and closing of the sliding door. This type of wire harness is disclosed, for example, in Patent Document 1 listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-19386 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a vehicle, a slide mechanism that performs the sliding operation of the slide door is installed between the slide door and the vehicle body. For example, in a vehicle, a link mechanism that is stretched between the slide door and the vehicle body can be used as the slide mechanism. In this vehicle, a harness main body can be routed along the link mechanism. In this case, the harness main body of the wire harness follows the movement of the link mechanism, but it is not preferable to apply an overload to the harness main body due to excessive bending or the like.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS An object of the present invention is to provide a wire harness that allows the harness body to follow the movement of the link mechanism without excessive load. [Means for solving the problem]

[0006] The present invention provides a harness main body having a first routing part that is routed to a link mechanism that connects a vehicle body and a sliding door and reciprocates the sliding door in a sliding direction relative to the vehicle body, a second routing part that is routed closer to the vehicle body than the first routing part, and a third routing part that is routed closer to the sliding door than the first routing part, a harness fixing device that fixes a fixing part of the third routing part to a fixed part on the sliding door side that is provided so as to prevent a relative displacement with respect to the sliding door, and a harness guide device that regulates a routing path of the third routing part, wherein the link mechanism includes a first arm member that is connected to the vehicle body side and has the first routing part routed to the other end thereof, a second arm member that is connected to the sliding door side, a first rotation axis that has a direction perpendicular to the sliding direction as an axial direction and enables a first relative rotation between the vehicle body and the one end of the first arm member, and a harness guide device that is parallel to the first rotation axis and to which the harness guide device is fixed. and a third rotation axis that is parallel to the first rotation axis and the second rotation axis and enables a third relative rotation between the sliding door and the one end of the second arm member, and the sliding door reciprocates in the sliding direction relative to the vehicle body along a plane orthogonal to the first rotation axis, the second rotation axis, and the third rotation axis, the harness guide device guides the third routing portion toward the fixed portion on the sliding door side that is located in a direction intersecting the orthogonal plane with respect to the harness guide device, and the fixed portion on the sliding door side is provided on a plane on which the axial centers of the second rotation axis and the third rotation axis exist and in a direction intersecting the orthogonal plane with respect to the harness guide device when the relative rotation position of the second arm member about the axis of the third rotation axis with respect to the sliding door is at the center of the swing range of the third relative rotation. Effect of the Invention

[0007] In the wire harness according to the present invention, the third wiring portion has the fixed portion on the sliding door side provided on the above plane and in a direction intersecting the above orthogonal plane with respect to the harness guide, so that the second arm member can be bent by the same amount when the second arm member is rotated from the center position of the swing range of the third relative rotation to one end about the axis of the third rotation shaft relative to the sliding door and when the second arm member is rotated from the center position of the swing range to the other end. Therefore, this wire harness can minimize the amount of bending deformation of the third wiring portion when the second arm member is rotated relative to the sliding door about the axis of the third rotation shaft. Therefore, the wire harness according to the present invention can make the harness main body follow the movement of the link mechanism without overload when the link mechanism performs the third relative rotation. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a wire harness according to an embodiment, together with a link mechanism, a sliding door, etc., as viewed from inside a vehicle compartment when the door is fully closed. [Diagram 2] FIG. 2 is a perspective view of the wire harness according to the embodiment together with a link mechanism and the like, as viewed from inside the vehicle compartment when the door is fully closed. [Diagram 3] FIG. 3 is a plan view of the wire harness according to the embodiment together with a link mechanism and the like, seen from above the vehicle when the door is fully closed. [Figure 4] FIG. 4 is a plan view of the wire harness according to the embodiment together with a link mechanism and the like, as viewed from inside the vehicle compartment when the door is fully closed. [Diagram 5] FIG. 5 is a perspective view of the wire harness according to the embodiment together with a link mechanism and the like, as viewed from inside the vehicle compartment when the door is fully open. [Figure 6] FIG. 6 is a plan view of the wire harness according to the embodiment together with a link mechanism and the like, seen from above the vehicle when the door is fully open. [Figure 7] FIG. 7 is a perspective view of the wire harness according to the embodiment together with a link mechanism and the like, as viewed from inside the vehicle compartment when the door is half-open. [Figure 8] FIG. 8 is a plan view of the wire harness according to the embodiment together with a link mechanism and the like, viewed from above the vehicle when the door is half-open. [Figure 9] FIG. 9 is a plan view seen from above the vehicle from the viewpoint of the sliding door side, illustrating displacement of the wire harness and the link mechanism when the sliding door is moved from a fully closed position to a half-open position, or when the sliding door is moved in the opposite direction. [Figure 10] FIG. 10 is a plan view seen from inside the vehicle compartment from the viewpoint of the sliding door side, showing the displacement of the wire harness and the link mechanism when the sliding door is moved from a fully closed position to a half-open position, or when the sliding door is moved in the opposite direction. [Figure 11] FIG. 11 is a plan view seen from above the vehicle from the viewpoint of the sliding door side, illustrating the displacement of the wire harness and the link mechanism when the sliding door is moved from a half-open position to a fully-open position, or when the sliding door is moved in the opposite direction. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a wire harness according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the embodiment.

[0010] [Embodiment] One embodiment of a wire harness according to the present invention will be described with reference to FIGS.

[0011] Reference numeral 1 in Figs. 1 to 11 denotes a wire harness of this embodiment.

[0012] For example, some vehicles such as automobiles are equipped with a sliding door 520 (FIGS. 1 to 11) that is reciprocable in a sliding direction relative to a vehicle body 510. To perform the sliding action (reciprocating action in the sliding direction) of the sliding door 520, this vehicle is equipped with a link mechanism 600 (FIGS. 1 to 11) that connects the vehicle body 510 and the sliding door 520 and reciprocates the sliding door 520 in the sliding direction relative to the vehicle body 510. The link mechanism 600 shown here slides the sliding door 520 on the side of the vehicle in the front-rear direction of the vehicle.

[0013] The link mechanism 600 is disposed between the vehicle body 510 and the sliding door 520, and displaces the sliding door 520 relative to the vehicle body 510 between a fully closed position (FIGS. 1 to 4) and a fully open position (FIGS. 5 and 6). The link mechanism 600 displaces the sliding door 520 relative to the vehicle body 510 between the fully closed position and the fully open position via a predetermined half-open position (FIGS. 7 and 8). The link mechanism 600 includes a first arm member 610 having one end 611 connected to the vehicle body 510, and a second arm member 620 having one end 621 connected to the sliding door 520 (FIGS. 1 to 11).

[0014] Furthermore, the link mechanism 600 includes a first rotation shaft 631 that enables a first relative rotation between the vehicle body 510 and one end 611 of the first arm member 610, a second rotation shaft 641 that is parallel to the first rotation shaft 631 and enables a second relative rotation between the other end 612 of the first arm member 610 and the other end 622 of the second arm member 620, and a third rotation shaft 651 that is parallel to the first rotation shaft 631 and the second rotation shaft 641 and enables a third relative rotation between the sliding door 520 and one end 621 of the second arm member 620 (FIGS. 1 to 11). The first rotation shaft 631, the second rotation shaft 641, and the third rotation shaft 651 each have an axial direction perpendicular to the sliding direction. The first rotating shaft 631, second rotating shaft 641, and third rotating shaft 651 shown here have their axial directions perpendicular to the sliding direction (vehicle front-rear direction) and the vehicle width direction (that is, the vehicle up-down direction).

[0015] This link mechanism 600 moves the sliding door 520 back and forth in the sliding direction relative to the vehicle body 510 along a plane perpendicular to the first rotating shaft 631, the second rotating shaft 641, and the third rotating shaft 651 (hereinafter referred to as the "operating plane of the link mechanism 600") Pm (Figures 4 and 10).

[0016] In this link mechanism 600, the output torque of a rotating machine (not shown) serving as a drive source is transmitted to a first rotating shaft 631.

[0017] For example, the first rotating shaft 631 shown here is fixed to one end 611 of the first arm member 610 so as not to be displaced relative to the first arm member 610, and is operated integrally with the first arm member 610. The link mechanism 600 shown here includes a bearing member 632 that is fixed to the vehicle body 510 and rotatably supports the first rotating shaft 631 (FIGS. 1 to 11). The bearing member 632 is a vehicle body-side fixed member that is fixed to the vehicle body 510 so as not to be displaced relative to the first arm member 610. In the link mechanism 600, the first rotating shaft 631 and the bearing member 632 are provided as a connector that connects the fixed portion 510a of the vehicle body 510 and the one end 611 of the first arm member 610 so as to be rotatable relative to each other. Therefore, the link mechanism 600 can rotate the first arm member 610 around the axis of the first rotating shaft 631 relative to the fixed portion 510a of the vehicle body 510.

[0018] Also, for example, in the link mechanism 600 shown here, a bearing portion 642 that rotatably supports the second rotating shaft 641 is provided at the other end 612 of the first arm member 610 (FIGS. 1 to 11). And, in the link mechanism 600 shown here, a bearing portion 643 that rotatably supports the second rotating shaft 641 is provided at the other end 622 of the second arm member 620 (FIGS. 1 to 11). Thus, the first arm member 610 and the second arm member 620 are connected via the second rotating shaft 641, the bearing portion 642, and the bearing portion 643 so as to be capable of relative rotation therebetween around the axis of the second rotating shaft 641. Incidentally, in this link mechanism 600, the second rotating shaft 641 may be fixed to one of the other end 612 of the first arm member 610 and the other end 622 of the second arm member 620 so as not to be displaced relative to one another.

[0019] The third rotating shaft 651 is supported by a bearing provided at least on one end 621 of the second arm member 620 and the fixed part 520a of the sliding door 520. For example, in the link mechanism 600 shown here, a bearing 652 that rotatably supports the third rotating shaft 651 is provided at one end 621 of the second arm member 620 (FIGS. 1 to 11). The fixed part 520a of the sliding door 520 shown here is formed as a bearing that rotatably supports the third rotating shaft 651. Therefore, the second arm member 620 and the sliding door 520 are connected to each other via the third rotating shaft 651, the bearing 652, and the fixed part 520a so that they can rotate relatively around the axis of the third rotating shaft 651.

[0020] The first arm member 610 shown here is disposed in a state of extending in the sliding direction (vehicle front-rear direction) when the sliding door 520 is in the fully closed position (FIGS. 1 to 4). When the sliding door 520 is opened from the fully closed position, the link mechanism 600 rotates the first arm member 610 relative to the vehicle body 510 around the axis of the first rotation shaft 631 toward the outside of the vehicle compartment (FIGS. 1 to 11).

[0021] Moreover, the second arm member 620 shown here extends further into the vehicle cabin than the second rotating shaft 641 regardless of the position of the sliding door 520, and the third rotating shaft 651 is supported at the end of the extension. In other words, the third rotating shaft 651 shown here is disposed further into the vehicle cabin than the second rotating shaft 641 regardless of the position of the sliding door 520. Therefore, the fixed portion 520a of the sliding door 520 protrudes from, for example, the inner panel 520b of the sliding door 520 to the inside of the vehicle cabin than the second rotating shaft 641, and the third rotating shaft 651 is supported at the end of the protrusion. This link mechanism 600 rotates the second arm member 620 relative to the sliding door 520 around the axis of the third rotating shaft 651 within the range of the swing width Wθ of the third relative rotation (FIG. 9).

[0022] The link mechanism 600 positions the second arm member 620 at one end of the swing range Wθ of the third relative rotation when the sliding door 520 is in the fully closed position (Figures 1 to 4, 9 and 10), and positions the second arm member 620 at the other end of the swing range Wθ of the third relative rotation when the sliding door 520 is in the fully open position (Figures 5, 6 and 11).

[0023] This link mechanism 600 displaces the second arm member 620 from one end of the swing range Wθ of the third relative rotation to the other end when the sliding door 520 is displaced from the fully closed position to a predetermined half-open position, and displaces the second arm member 620 from the other end of the swing range Wθ of the third relative rotation to one end when the sliding door 520 is displaced from the half-open position to the fully closed position (Figures 1 to 4 and 7 to 10). For example, when moving the sliding door 520 from the fully closed position to the fully open position, the link mechanism 600 rotates the first arm member 610 relative to the vehicle body 510 about the axis of the first rotation shaft 631, while rotating the second arm member 620 located at one end of the swing width Wθ of the third relative rotation with respect to the sliding door 520 relative to the axis of the third rotation shaft 651 while rotating the first arm member 610 relative to the axis of the second rotation shaft 641, so that the second arm member 620 reaches the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520. By operating in this manner, the link mechanism 600 moves the sliding door 520 from the fully closed position to a predetermined half-open position. Incidentally, the predetermined half-open position of the sliding door 520 referred to here means a position of the sliding door 520 with respect to the vehicle body 510 when the second arm member 620 is displaced from one end to the other end of the swing width Wθ of the third relative rotation.

[0024] Next, while continuing the relative rotation of the first arm member with respect to the vehicle body 510 around the axis of the first rotation shaft 631, the link mechanism 600 rotates the first arm member 610 relative to the second arm member 620 around the axis of the second rotation shaft 641 while keeping the second arm member 620 at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520 (FIGS. 5 to 8 and 11). In other words, when the sliding door 520 is located between a predetermined half-open position and a fully-open position, the link mechanism 600 keeps the second arm member 620 located at the other end of the swing width Wθ of the third relative rotation. By operating in this manner, the link mechanism 600 moves the sliding door 520 from the predetermined half-open position to the fully-open position.

[0025] On the other hand, when moving the sliding door 520 from the fully open position to the fully closed position, the link mechanism 600 rotates the first arm member 610 relative to the vehicle body 510 about the axis of the first rotating shaft 631 (in the opposite direction to the opening operation), while keeping the second arm member 620 at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520, and rotates the first arm member 610 relative to the second arm member 620 about the axis of the second rotating shaft 641 (in the opposite direction to the opening operation) (FIGS. 5 to 8 and 11). By operating in this way, the link mechanism 600 moves the sliding door 520 from the fully open position to a predetermined half-open position.

[0026] Next, while continuing the relative rotation of the first arm member with respect to the vehicle body 510 about the axis of the first rotating shaft 631, the link mechanism 600 rotates the second arm member 620 located at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520 about the axis of the second rotating shaft 641 (the opposite direction to the opening operation) with respect to the first arm member 610, while rotating the second arm member 620 about the axis of the third rotating shaft 651 (the opposite direction to the opening operation) with respect to the sliding door 520, so that the second arm member 620 reaches one end of the swing width Wθ with respect to the sliding door 520 (FIGS. 1 to 4 and 7 to 10). By operating in this manner, the link mechanism 600 moves the sliding door 520 from the half-open position to the fully closed position.

[0027] The wire harness 1 of this embodiment is mounted on a vehicle to electrically connect a first electrical connection object 511 installed on a vehicle body 510 and a second electrical connection object 521 installed on a sliding door 520 (FIG. 1).

[0028] The first electrically connected object 511 is an object to be electrically connected, such as a power source (secondary battery, etc.) or an electrical component, which is installed on the vehicle body 510 side. For example, the electrical component on the vehicle body 510 side refers to an audio device related to the speaker of the sliding door 520, a drive device for driving a power seat, etc. On the other hand, the second electrically connected object 521 is an object to be electrically connected, such as an electrical component or a switch, which is installed on the sliding door 520. For example, the electrical component of the sliding door 520 refers to a drive device for driving a power window, a speaker, etc. Also, the switch of the sliding door 520 refers to a switch for operating a power window, a switch for operating a power seat, etc.

[0029] The wire harness 1 is routed between the first electrical connection object 511 and the second electrical connection object 521 (FIG. 1). The wire harness 1 is routed through a link mechanism 600 and follows the movement of the link mechanism 600.

[0030] The wire harness 1 includes a harness main body 10 as a wiring part that electrically connects a first electrically connected object 511 and a second electrically connected object 521 (FIGS. 1 to 11). The harness main body 10 may be configured only of an electric wire bundle in which a plurality of electric wires are bundled, or the electric wire bundle may be entirely covered with an exterior part such as a corrugated tube, or the electric wire bundle may be partially covered with one or more exterior parts. The wire harness 1 may also include a communication line for transmitting and receiving signals between the vehicle body 510 side and the sliding door 520 side.

[0031] In this wire harness 1, one end of the harness body 10 is electrically connected directly or indirectly to a first object for electrical connection 511, and the other end of the harness body 10 is electrically connected directly or indirectly to a second object for electrical connection 521. For example, this wire harness 1 includes a first connector 21 that is attached to one end of the harness body 10 and electrically connects the harness body 10 directly or indirectly to the first object for electrical connection 511, and a second connector 22 that is attached to the other end of the harness body 10 and electrically connects the harness body 10 directly or indirectly to the second object for electrical connection 521 (FIGS. 1 to 11).

[0032] The harness main body 10 has a first routing portion 11 that is routed to the link mechanism 600, a second routing portion 12 that is routed closer to the vehicle body 510 than the first routing portion 11, and a third routing portion 13 that is routed closer to the sliding door 520 than the first routing portion 11 (Figures 1 to 11).

[0033] The first routing portion 11 is routed to the other end 612 of the first arm member 610 (FIGS. 1 to 11). For example, the first routing portion 11 is routed along the first arm member 610 to the other end 612 of the first arm member 610. The first routing portion 11 shown here is routed along the first arm member 610 between one end 611 and the other end 612. The first routing portion 11 may be fixed to the first arm member 610 at its one end 611 using a harness fixing device (hereinafter referred to as an "arm side fixing device") (not shown), or may not be fixed at the one end 611. The arm side fixing device may be, for example, a clamp or clip having a respective holding shape for the first routing portion 11 and the first arm member 610 (for example, a portion formed in a flat plate shape), or a resin tape that wraps the first routing portion 11 and the first arm member 610 together.

[0034] The second routing portion 12 is, for example, a portion that is routed closer to the vehicle body 510 than the one end 611 when the first routing portion 11 is routed between one end 611 and the other end 612 of the first arm member 610 in the harness main body 10 (FIGS. 1 to 11). In the harness main body 10, the first connector 21 at the end of the second routing portion 12 is directly or indirectly electrically connected to the first electrical connection object 511 on the vehicle body 510 side.

[0035] The second routing part 12 may be fixed directly or indirectly to the vehicle body 510, or may not be fixed to the vehicle body 510. When the second routing part 12 is fixed to the vehicle body 510, for example, a harness fixing device (hereinafter referred to as a "first harness fixing device") is used for the fixing (not shown). The first harness fixing device is, for example, a clamp or clip provided with a holding shape for the second routing part 12 and the vehicle body 510 or a part fixed to the vehicle body 510 (for example, a part formed in a flat plate shape).

[0036] The third routing portion 13 is a portion of the harness main body 10 that is routed closer to the sliding door 520 than the other end 612 of the first arm member 610 (FIGS. 1 to 11). In the harness main body 10, the second connector 22 at the end of the third routing portion 13 is electrically connected directly or indirectly to the second electrical connection object 521.

[0037] The third wiring portion 13 is fixed to a fixed portion 522 on the sliding door 520 side provided between an end of the third wiring portion 13 on the second electrical connection object 521 side and an end of the first wiring portion 11 side so as not to cause a relative displacement with respect to the sliding door 520 (FIG. 1). The fixed portion 522 on the sliding door 520 side may be a portion provided on the sliding door 520, or may be a portion provided on a separate member fixed so as not to cause a relative displacement with respect to the sliding door 520. The link mechanism 600 includes a harness fixing device (hereinafter referred to as a "second harness fixing device") 30 that fixes a fixing portion 13a between an end of the third wiring portion 13 on the second electrical connection object 521 side and an end of the third wiring portion 13 on the first wiring portion 11 side to the fixed portion 522 on the sliding door 520 side (FIGS. 1, 2, 4, 5, 7, and 10). For example, this second harness fixing device 30 is a clamp or clip having a holding shape for the fixing portion 13a of the third routing portion 13 and a fixed portion 522 such as a through hole provided in the sliding door 520 (for example, a portion formed in a flat plate shape).

[0038] Furthermore, the link mechanism 600 includes a harness guide 40 that is fixed to the other end 612 of the first arm member 610 and regulates the routing path of the third routing portion 13 (FIGS. 1 to 11). The harness guide 40 is a guide member that guides the third routing portion 13 toward a fixed portion 522 on the sliding door 520 side that is located in a direction intersecting the operating plane Pm of the link mechanism 600 relative to the harness guide 40. The harness guide 40 is fixed to the other end 612 of the first arm member 610 so as not to be displaced relative to the third routing portion 13, and guides the third routing portion 13 from the end on the first routing portion 11 side toward the fixed portion 522 on the sliding door 520 side.

[0039] The fixed portion 522 on the sliding door 520 side is provided on a plane Pi (hereinafter referred to as a "virtual plane") on which the axial centers of the second rotating shaft 641 and the third rotating shaft 651 exist when the relative rotation position of the second arm member 620 around the axis of the third rotating shaft 651 with respect to the sliding door 520 is at the central position of the swing range Wθ of the third relative rotation, and in a direction intersecting the operating plane Pm of the link mechanism 600 with respect to the harness guide device 40 (Figures 1 and 10).

[0040] The harness guide 40 has an inlet 41 for pulling in the first routing portion 11 that has been routed along the first arm member 610 to the other end 612 of the first arm member 610, an outlet 42 for pulling out the third routing portion 13 and directing it toward the fixed portion 522 on the sliding door 520 side, and a guide space 43 for guiding the first routing portion 11 pulled in from the inlet 41 and guiding the third routing portion 13 to the outlet 42 (FIG. 2). The harness guide 40 shown here has a main body formed in an L-shaped tube, and its internal space is used as the L-shaped guide space 43 for guiding the first routing portion 11 and the third routing portion 13. The harness guide 40 opens the outlet 42 in the axial direction of the first rotating shaft 631 and the second rotating shaft 641, and directs the third wiring portion 13 to the fixed portion 522 on the sliding door 520 side that exists beyond the outlet 42. The harness guide 40 causes the third wiring portion 13 to be drawn out, for example, on the axis of the second rotating shaft 641. Therefore, the outlet 42 is provided on the axis of the second rotating shaft 641, and causes the third wiring portion 13 to be drawn out on this axis.

[0041] The fixed portion 522 on the sliding door 520 side is provided in a region above the vehicle or a region below the vehicle with respect to the harness guide 40. For example, the fixed portion 522 is provided in a region above the vehicle or a region below the vehicle with respect to the harness guide 40 when the relative rotation position of the second arm member 620 around the axis of the third rotation shaft 651 with respect to the sliding door 520 is at the center position of the swing width Wθ of the third relative rotation. The fixed portion 522 shown here is provided in a region above the vehicle with respect to the harness guide 40 when the second arm member 620 is at its center position. Specifically, the fixed portion 522 is provided in a region above the vehicle with respect to the harness guide 40 when the second arm member 620 is at the center position of the swing width Wθ of the third relative rotation, and at a position where the fixing portion 13a of the third wiring portion 13 arranged above the vehicle with respect to the harness guide 40 can be fixed by the second harness fixing device 30. For example, when the second arm member 620 is in the central position of the swing range Wθ of the third relative rotation, the third routing portion 13 is pulled out toward the top of the vehicle from the pull-out opening 42 of the harness guide device 40, and the fixing portion 13a located above the vehicle than this pull-out opening 42 is fixed to the fixed portion 522 on the sliding door 520 side by the second harness fixing device 30.

[0042] The end of the third wiring section 13 on the first wiring section 11 side is restrained at the arrangement location of the harness guide 40 that follows the movement and position of the first arm member 610, and the fixed portion 13a is restrained at the position of the fixed portion 522 on the sliding door 520 side. Therefore, when the second arm member 620 is rotated relatively to the sliding door 520 around the axis of the third rotation shaft 651, the harness guide 40 moves in conjunction with the displacement of the other end 622 of the second arm member 620 (the other end 612 of the first arm member 610) with respect to the position of the fixed portion 522 on the sliding door 520 side, so that the third wiring section 13 can be bent and deformed by suppressing the amount of deformation between the harness guide 40 and the fixed portion 13a in accordance with the displacement of the harness guide 40 (FIGS. 9 and 10). In other words, the wire harness 1 can make the harness main body 10 follow the movement of the link mechanism 600 without overload.

[0043] Specifically, the third wiring portion 13 is provided with the fixed portion 522 on the sliding door 520 side on the virtual plane Pi and in a direction intersecting the operating plane Pm of the link mechanism 600 with respect to the harness guide 40, so that the second arm member 620 can be bent and deformed by the same amount when the second arm member 620 is rotated from the center position of the swing width Wθ of the third relative rotation to one end around the axis of the third rotation shaft 651 relative to the sliding door 520 and when the second arm member 620 is rotated from the center position of the swing width Wθ to the other end. Therefore, the wire harness 1 can minimize the amount of bending deformation of the third wiring portion 13 when the second arm member 620 is rotated relative to the sliding door 520 around the axis of the third rotation shaft 651. Therefore, the wire harness 1 can make the harness main body 10 follow the movement of the link mechanism 600 without overload when the link mechanism 600 performs the third relative rotation.

[0044] Furthermore, when the first arm member 610 and the second arm member 620 are rotated relative to each other about the second rotation shaft 641, the first routing portion 11 rotates about the axis of the third routing portion 13 in conjunction with the movement of the first arm member 610, so that the third routing portion 13 can undergo twisting deformation about its own axis while suppressing the amount of deformation between the harness guide 40 and the fixed portion 13a (FIG. 11). In other words, the wire harness 1 can cause the harness main body 10 to follow the movement of the link mechanism 600 without excessive load.

[0045] Specifically, since the third wiring portion 13 is pulled out from the harness guide 40 on the axis of the second rotating shaft 641, it can be twisted on or near the axis of the second rotating shaft 641. Therefore, in the third wiring portion 13, it is possible to make a twisted deformation with a smaller deformation amount compared to when it is pulled out from the harness guide 40 at a position away from the axis of the second rotating shaft 641. Therefore, in the wire harness 1, when the first arm member 610 and the second arm member 620 are rotated relatively between them around the axis of the second rotating shaft 641, it is possible to make the harness main body 10 follow the movement of the link mechanism 600 without an overload.

[0046] Incidentally, the second arm member 620 shown here extends in the vehicle width direction when the relative rotation position around the axis of the third rotation shaft 651 with respect to the sliding door 520 is at the center position of the swing width Wθ of the third relative rotation, and the second rotation shaft 641 and the third rotation shaft 651 are arranged in this vehicle width direction. Therefore, the virtual plane Pi shown here is a plane that is along the vehicle width direction and the vehicle up-down direction and perpendicular to the vehicle front-rear direction (sliding direction) when the second arm member 620 is at its center position. The second arm member 620 rotates relatively to the sliding door 520 around the axis of the third rotation shaft 651 to one end side and the other end side of the swing width Wθ at the same angle from the center position of the swing width Wθ of the third relative rotation.

[0047] As described above, in the wire harness 1 of the present embodiment, the harness main body 10 can follow the movement of the link mechanism 600 without excessive load, and therefore the durability of the harness main body 10 can be improved. [Explanation of symbols]

[0048] 1 Wire Harness 10 Harness body 11 First wiring section 12 2nd Routing Section 13 3rd Routing Section 13a Fixed part 30 Second harness fixing device (harness fixing device) 40 Harness guide 510 Body 520 Sliding Door 522 Fixed part 600 Link Mechanism 610 First arm member 611 One end 612 Other end 620 Second arm member 621 One end 622 Other end 631 First Rotation Axis 641 Second Rotation Axis 651 3rd Rotation Axis Pi Virtual plane (plane) Pm Working plane (orthogonal plane) Wθ Swing width

Claims

1. a harness body including a first wiring portion that is wired to a link mechanism that connects a vehicle body and a sliding door and reciprocates the sliding door in a sliding direction relative to the vehicle body, a second wiring portion that is wired closer to the vehicle body than the first wiring portion, and a third wiring portion that is wired closer to the sliding door than the first wiring portion; a harness fixing device that fixes a fixing portion of the third wiring portion to a fixing portion on the sliding door side that is provided so as not to cause a relative displacement with respect to the sliding door; A harness guide that regulates a wiring path of the third wiring portion; Equipped with the link mechanism includes a first arm member having one end connected to the vehicle body side and the first routing portion routed to the other end, a second arm member having one end connected to the sliding door side, a first rotation axis having an axial direction perpendicular to the sliding direction and enabling a first relative rotation between the vehicle body and the one end of the first arm member, a second rotation axis parallel to the first rotation axis and enabling a second relative rotation between the other end of the first arm member to which the harness guide is fixed and the other end of the second arm member, and a third rotation axis parallel to the first rotation axis and the second rotation axis and enabling a third relative rotation between the sliding door and the one end of the second arm member, and causes the sliding door to reciprocate in the sliding direction relative to the vehicle body along a plane perpendicular to the first rotation axis, the second rotation axis, and the third rotation axis, the harness guide guides the third wiring portion toward the fixed portion on the sliding door side, the fixed portion being positioned in a direction intersecting the orthogonal plane with respect to the harness guide, the fixed portion on the sliding door side is provided on a plane on which the axial centers of the second rotation shaft and the third rotation shaft exist when the relative rotation position of the second arm member around the axis of the third rotation shaft with respect to the sliding door is at the center position of the swing range of the third relative rotation, and in a direction intersecting the perpendicular plane with respect to the harness guide device.

2. 2. The wire harness according to claim 1, wherein the fixed portion on the sliding door side is provided in an area above the vehicle or an area below the vehicle with respect to the harness guide when a relative rotation position of the second arm member around the axis of the third rotation shaft with respect to the sliding door is in the central position.

3. 3. The wire harness according to claim 1, wherein the plane on which the fixed portion on the sliding door side is provided is a plane perpendicular to the sliding direction when the relative rotation position of the second arm member around the axis of the third rotation shaft with respect to the sliding door is at the central position.

4. 4. The wire harness according to claim 1, wherein the harness guide guides the third wiring portion along an axis of the second rotation shaft.

5. 5. The wire harness according to claim 1, wherein the third wiring portion is bent and deformed between the harness guide and the fixed portion when the second arm member is rotated relative to the sliding door around the axis of the third rotation shaft, and is twisted and deformed around its own axis between the harness guide and the fixed portion when the first arm member and the second arm member are rotated relative to each other around the axis of the second rotation shaft.

6. 6. The wire harness according to claim 1, wherein, when the sliding door is moved from a fully closed position to a fully open position, the link mechanism rotates the first arm member relative to the vehicle body about the first rotation shaft, while rotating the second arm member located at one end of the swing range relative to the sliding door about the second rotation shaft relative to the first arm member, and rotates the second arm member relative to the sliding door about the third rotation shaft while rotating the first arm member relative to the vehicle body, thereby causing the second arm member to reach the other end of the swing range relative to the sliding door, and while continuing the relative rotation of the first arm member about the first rotation shaft relative to the vehicle body, rotates the first arm member relative to the second arm member about the second rotation shaft while keeping the second arm member positioned at the other end of the swing range relative to the sliding door.

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