wiring harness

Abstract

Wiring harness (1), comprising: a cable harness body (10) with a first guide section (11) guided in a connection mechanism (600) that couples a vehicle body (510) and a sliding door (520) and moves the sliding door (520) back and forth in a sliding direction with respect to the vehicle body (510), a second guide section (12) guided closer to one side of the vehicle body (510) than the first guide section (11), and a third guide section (13) guided closer to one side of the sliding door (520) than the first guide section (11); a cable harness fastening tool (30) that fastens a fastening section (13a) of the third guide section (13) to a fixed section (522) on the side of the sliding door (520), which is designed so that it does not cause any relative displacement with respect to the sliding door (520); and a cable harness guidance tool (40) that determines a routing path of the third guide section (13), wherein the connecting mechanism (600) a first arm element (610), one end section (611) of which is coupled to the side of the vehicle body (510) and whose first guide section (11) is led to the other end section (612), a second arm element (620), one end section (621) of which is connected to the side of the sliding door (520), a first pivot shaft (631) which has an axial direction orthogonal to the sliding direction and is capable of performing a first relative rotation between the vehicle body (510) and one end section (611) of the first arm element (610), a second pivot shaft (641) which runs parallel to the first pivot shaft (631) and is capable of performing a second relative rotation between the other end section (612) of the first arm element (610), to which the cable harness guide tool (40) is attached, and the other end section (622) of the second to execute arm elements (620), and a third rotating shaft (651),which runs parallel to the first pivot shaft (631) and the second pivot shaft (641) and is capable of performing a third relative rotation between the sliding door (520) and one end section (621) of the second arm element (620), wherein the sliding door (520) moves back and forth in the sliding direction with respect to the vehicle body (510) along a plane orthogonal (Pm) to the first pivot shaft (631), the second pivot shaft (641) and the third pivot shaft (651), comprises, , the cable harness guide tool (40) guides the third guide section (13) to the fixed section (522) on the side of the sliding door (520), which is positioned in a direction that intersects the orthogonal plane (Pm) with respect to the cable harness guide tool (40), and the fixed section (522) on the side of the sliding door (520) in a plane in which an axis center of both the second pivot shaft (641) and the third pivot shaft (651) is located, and in the direction that intersects the orthogonal plane (Pm) with respect to the cable harness guide tool (40), when a relative rotation position of the second arm element (620) about an axis of the third pivot shaft (651) with respect to the sliding door (520) is a center position of a pivot width (Wθ) of the third relative rotation is provided.

Description

Background of the invention 1. Field of the invention

[0001] The present invention relates to a wiring harness. 2. Description of the state of the art

[0002] Conventionally, a vehicle such as an automobile is equipped with a wiring harness that connects a power source (secondary battery, etc.) on the vehicle body side, an electrical component, etc., to a switch on the sliding door side, an electrical component, etc. In this wiring harness, the wiring harness body is routed between the vehicle body and the sliding door, and the routing path of the wiring harness body changes in conjunction with the opening / closing operation of the sliding door. This type of wiring harness is disclosed, for example, in Japanese Patent Application Laid-Open No. JP 2021-19386 A below.

[0003] In the vehicle, a sliding mechanism is installed between the sliding door and the vehicle body, which is responsible for the sliding operation of the sliding door. For example, it is conceivable to use a connecting mechanism that runs between a sliding door and a vehicle body as the sliding mechanism in a vehicle. In this vehicle, it is then conceivable to route the wiring harness body along the connecting mechanism. In this case, the wiring harness body follows the movement of the connecting mechanism within the wiring harness, although it is undesirable for the wiring harness body to be overloaded by excessive bending and the like.

[0004] From DE 10 2006 061 641 A1 a wire harness mounting structure of a hinged movable body is known, in which the movable body, for example a door of a motor vehicle, is supported by a hinge so as to be opened and closed, and a power supply line wire harness is mounted along the hinge and is formed so as to extend upwardly in the vertical direction, these upwardly extending portions being twisted when the door is opened and closed.

[0005] Further prior art is known from the documents JP H10 - 175 483 A and US 2015 / 0 203 057 A1. Summary of the invention

[0006] Therefore, it is an object of the present invention to provide a wire harness capable of causing the wire harness body to follow the movement of the connecting mechanism without overload.

[0007] A wire harness according to one aspect of the present invention includes a wire harness body having a first guide portion guided in a linking mechanism that couples a vehicle body and a sliding door and reciprocates the sliding door in a sliding direction with respect to the vehicle body, a second guide portion guided closer to a side of the vehicle body than the first guide portion, and a third guide portion guided closer to a side of the sliding door than the first guide portion; a wire harness fastening tool that fastens a fastening portion of the third guide portion to a fixed portion on the side of the sliding door provided so as not to cause relative displacement with respect to the sliding door; and a wire harness guiding tool that determines a routing path of the third guide portion, wherein the linking mechanism includes a first arm member,one end portion of which is coupled to the side of the vehicle body and the first guide portion of which is guided to the other end portion, a second arm member, one end portion of which is connected to the side of the sliding door, a first rotary shaft having a direction orthogonal to the sliding direction as an axial direction and capable of performing a first relative rotation between the vehicle body and the one end portion of the first arm member, a second rotary shaft extending parallel to the first rotary shaft and capable of performing a second relative rotation between the other end portion of the first arm member, to which the wire harness guide tool is attached, and the other end portion of the second arm member, and a third rotary shaft extending parallel to the first rotary shaft and the second rotary shaft and capable ofto perform a third relative rotation between the sliding door and the one end portion of the second arm member, wherein the sliding door reciprocates in the sliding direction with respect to the vehicle body along a plane orthogonal to the first rotary shaft, the second rotary shaft, and the third rotary shaft, the wire harness guide tool guides the third guide portion to the fixed portion on the sliding door side positioned in a direction intersecting the orthogonal plane with respect to the wire harness guide tool, and the fixed portion on the sliding door side in a plane in which an axis center of both the second rotary shaft and the third rotary shaft is located and in the direction intersecting the orthogonal plane with respect to the wire harness guide tool,when a relative rotational position of the second arm member about an axis of the third rotary shaft with respect to the sliding door is a center position of a pivoting width of the third relative rotation,

[0008] The foregoing and other objects, features, advantages, as well as technical and industrial significance of this invention will be better understood when the following detailed description of the present preferred embodiments of the invention is read in conjunction with the accompanying drawings. Short description of the drawings Fig. 1 is a perspective view of a wire harness according to an embodiment when the door is fully closed, as seen from the inside of a vehicle, and a connecting mechanism, a sliding door, and the like; Fig. 2 is a perspective view of the wire harness according to the embodiment when the door is fully closed, as seen from the inside of the vehicle, and the connecting mechanism and the like; Fig. 3 is a plan view of the wire harness according to the embodiment, with the door fully closed, viewed from the top of the vehicle, together with the connecting mechanism and the like; Fig. 4 is a plan view of the wire harness according to the embodiment when the door is fully closed, as viewed from the vehicle interior, together with the connecting mechanism and the like; Fig. 5 is a perspective view of the wire harness according to the embodiment when the door is fully opened, as seen from the inside of the vehicle, together with the connecting mechanism and the like; Fig. 6 is a plan view of the wire harness according to the embodiment when the door is fully opened, as viewed from the top of the vehicle, together with the connecting mechanism and the like; Fig. 7 is a perspective view of the wire harness according to the embodiment when the door is half-opened, as seen from the inside of the vehicle, together with the connecting mechanism and the like; Fig. 8 is a plan view of the wire harness according to the embodiment when the door is half-opened, as viewed from the top of the vehicle, together with the connecting mechanism and the like; Fig. 9 is a plan view showing the displacement of the wire harness and the link mechanism when the sliding door is moved from the fully closed position to the half-open position or performs a reverse movement when viewed from the top of the vehicle toward the sliding door side; Fig. 10 is a plan view of the displacement of the wire harness and the link mechanism when the sliding door is moved from the fully closed position to the half-open position or performs a reverse movement when viewed from the vehicle interior toward the sliding door side; and Fig. 11 is a plan view of the displacement of the wire harness and the link mechanism when the sliding door is moved in the half-open position to the fully open position or a reverse movement is performed when viewed from the top of the vehicle on the sliding door side. Detailed description of the preferred embodiments

[0009] Hereinafter, an embodiment of a wire harness according to the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited to the embodiment. Embodiment

[0010] In the following, an embodiment of a wire harness according to the present invention will be described with reference to the Fig. 1 to 11 described.

[0011] The reference number 1 in the Fig. 1 to 11 denotes a wire harness of the present embodiment.

[0012] For example, in a vehicle, such as an automobile, a sliding door 520 ( Fig. 1 to 11) is mounted, which can move back and forth in a sliding direction with respect to a vehicle body 510. The vehicle includes a link mechanism 600 that couples the vehicle body 510 and the sliding door 520 and moves the sliding door 520 back and forth in a sliding direction with respect to the vehicle body 510 to perform the sliding operation (reciprocation in the sliding direction) of the sliding door 520 ( Fig. 1 to 11).

[0013] The connecting mechanism 600 shown here moves the sliding door 520 on the vehicle side in the vehicle longitudinal direction.

[0014] The connecting mechanism 600 extends between the vehicle body 510 and the sliding door 520 to move the sliding door 520 relative to the vehicle body 510 between a fully closed position ( Fig. 1 to 4) and a fully open position ( Fig. 5 and Fig. 6). The connecting mechanism 600 is moved relative to the vehicle body 510 from a fully closed position through a predetermined half-open position ( Fig. 7 and Fig. 8) of the sliding door 520 to a fully open position. The connecting mechanism 600 includes a first arm member 610 connecting an end portion 611 to the side of the vehicle body 510, and a second arm member 620 connecting an end portion 621 to the side of the sliding door 520 ( Fig. 1 to 11).

[0015] In addition, the connecting mechanism 600 includes a first rotary shaft 631 that enables a first relative rotation between the vehicle body 510 and one end portion 611 of the first arm member 610, a second rotary shaft 641 that runs parallel to the first rotary shaft 631 and enables a second relative rotation between another end portion 612 of the first arm member 610 and another end portion 622 of the second arm member 620, and a third rotary shaft 651 that runs parallel to the first rotary shaft 631 and the second rotary shaft 641 and enables a third relative rotation between the sliding door 520 and one end portion 621 of the second arm member 620 ( Fig. 1 to 11). The first rotary shaft 631, the second rotary shaft 641, and the third rotary shaft 651 each extend in an axial direction orthogonal to the sliding direction. For the first rotary shaft 631, the second rotary shaft 641, and the third rotary shaft 651 illustrated here, the axial direction is a direction orthogonal to the sliding direction (vehicle longitudinal direction) and the vehicle width direction (i.e., the vehicle height direction).

[0016] The link mechanism 600 reciprocates the sliding door 520 in the sliding direction with respect to the vehicle body 510 along a plane (hereinafter referred to as “operation plane of the link mechanism 600”) Pm orthogonal to the first rotary shaft 631, the second rotary shaft 641 and the third rotary shaft 651 ( Fig. 4 and Fig. 10).

[0017] In the link mechanism 600, the output torque of a lathe (not shown) as a drive source is transmitted to the first rotary shaft 631.

[0018] For example, the first rotary shaft 631 shown here is fixed to one end portion 611 of the first arm member 610 without relative displacement and is operated in a fixed manner with the first arm member 610. Furthermore, the connecting mechanism 600 shown here includes a bearing member 632 that is fixed to the vehicle body 510 and rotatably supports the first rotary shaft 631 ( Fig. 1 to 11). The bearing member 632 is a vehicle-body-side fastening member that is fixed to the vehicle body 510 without relative displacement. In the link mechanism 600, the first rotary shaft 631 and the bearing member 632 are provided as coupling members that couple a fixed portion 510a of the vehicle body 510 and one end portion 611 of the first arm member 610 to be rotatable relative to each other. Therefore, the link mechanism 600 can relatively rotate the first arm member 610 around the axis of the first rotary shaft 631 with respect to the fixed portion 510a of the vehicle body 510.

[0019] In addition, for example, in the connecting mechanism 600 shown here, a bearing portion 642, which rotatably supports the second rotary shaft 641, is provided on the other end portion 612 of the first arm member 610 ( Fig. 1 to 11). Furthermore, in the connecting mechanism 600 shown here, a bearing portion 643, which rotatably supports the second rotary shaft 641, is provided at the other end portion 622 of the second arm member 620 ( Fig. 1 to 11). Therefore, the first arm member 610 and the second arm member 620 are coupled via the second rotary shaft 641, the bearing portion 642, and the bearing portion 643 to be rotatable relative to each other about the axis of the second rotary shaft 641. Note that in the link mechanism 600, the second rotary shaft 641 may be fixed to the other end portion 612 of the first arm member 610 or the other end portion 622 of the second arm member 620 without relative displacement.

[0020] The third rotary shaft 651 is supported by a bearing portion provided at one end portion 621 of the second arm member 620 and / or the fixed portion 520a of the sliding door 520. For example, in the link mechanism 600 shown here, a bearing portion 652 that rotatably supports the third rotary shaft 651 is provided at one end portion 621 of the second arm member 620 ( Fig. 1 to 11). Then, the fixed portion 520a of the sliding door 520 shown here is formed as a bearing portion that rotatably supports the third rotary shaft 651. Therefore, the second arm member 620 and the sliding door 520 are coupled via the third rotary shaft 651, the bearing portion 652, and the fixed portion 520a so that they are rotatable relative to each other about the axis of the third rotary shaft 651.

[0021] The first arm member 610 shown here is arranged in a state in which it extends in the sliding direction (vehicle longitudinal direction) when the sliding door 520 is in the fully closed position ( Fig. 1 to 4). Then, when the sliding door 520 is opened in 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 rotary shaft 631 toward the vehicle exterior ( Fig. 1 to 11).

[0022] Furthermore, the second arm member 620 shown here extends toward the vehicle interior with respect to the second rotary shaft 641, regardless of the position of the sliding door 520, and supports the third rotary shaft 651 at a position where the second arm member 620 extends. That is, the third rotary shaft 651 shown here is arranged relative to the second rotary shaft 641, regardless of the position of the sliding door 520 on the vehicle interior. Therefore, the fixed portion 520a of the sliding door 520 protrudes, for example, from an inner wall 520b of the sliding door 520 toward the vehicle interior with respect to the second rotary shaft 641, and the third rotary shaft 651 is supported on the projection. The link mechanism 600 rotates the second arm member 620 about the axis of the third rotary shaft 651 relative to the sliding door 520 within the range of a pivot width Wθ of the third relative rotation ( Fig. 9).

[0023] The link mechanism 600 arranges the second arm member 620 at one end of the swing width Wθ of the third relative rotation when the sliding door 520 is in the fully closed position ( Fig. 1 to 4, 9 and 10), and arranges the second arm member 620 at the other end of the swing width Wθ of the third relative rotation when the sliding door 520 is in the fully open position ( Fig. 5, Fig. 6 and Fig. 11).

[0024] The link mechanism 600 moves the second arm member 620 from one end to the other end of the swing width Wθ of the third relative rotation when the sliding door 520 is moved from the fully closed position to the predetermined half-open position, and moves the second arm member 620 from the other end to one end of the swing width Wθ of the third relative rotation when the sliding door 520 is moved from the half-open position to the fully closed position ( Fig. 1 to 4 and 7 to 10). For example, when the sliding door 520 is moved in the fully closed position to the fully opened position, the link mechanism 600 rotates the first arm member 610 relative to the vehicle body 510 about the axis of the first rotary shaft 631, and rotates the second arm member 620, which is positioned at one end of the swing width Wθ of the third relative rotation with respect to the sliding door 520, relatively about the axis of the third rotary shaft 651 with respect to the sliding door 520, while relatively rotating the second arm member 620 about the axis of the second rotary shaft 641 with respect to the first arm member 610 in such a manner 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 the link mechanism 600 in this manner, the sliding door 520 in the fully closed position is moved to a predetermined half-open position.It should be noted that the predetermined half-open position of the sliding door 520 here refers to the 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.

[0025] Subsequently, while the relative rotation of the first arm member around the axis of the first rotary shaft 631 with respect to the vehicle body 510 continues, the link mechanism 600 rotates the first arm member 610 relatively around the axis of the second rotary shaft 641 with respect to the second arm member 620, while the second arm member 620 remains positioned at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520 ( Fig. 5 to 8 and 11). That is, when the sliding door 520 is positioned between the predetermined half-open position and the fully open position, the second arm member 620 remains positioned at the other end of the swing width Wθ of the third relative rotation by the link mechanism 600. By operating the link mechanism 600 in this manner, the sliding door 520 is moved from the predetermined half-open position to the fully open position.

[0026] On the other hand, when the sliding door 520, which is in the fully opened position, is moved to the fully closed position, the link mechanism 600 relatively rotates the first arm member 610 around the axis of the first rotating shaft 631 (in the direction opposite to the opening operation) with respect to the vehicle body 510, and relatively rotates the first arm member 610 around the axis of the second rotating shaft 641 (in the direction opposite to the opening operation) with respect to the second arm member 620, while the second arm member 620 remains positioned at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520 ( Fig. 5 to 8 and 11). By operating the link mechanism 600 in this manner, the sliding door 520, which is in the fully open position, is moved to the predetermined half-open position.

[0027] Subsequently, the link mechanism 600 continues the relative rotation of the first arm member around the axis of the first rotary shaft 631 with respect to the vehicle body 510, and rotates the second arm member 620, which is positioned at the other end of the swing width Wθ of the third relative rotation with respect to the sliding door 520, relatively around the axis of the third rotary shaft 651 (in the direction opposite to the opening operation) with respect to the sliding door 520, while the second arm member 620 is relatively rotated around the axis of the second rotary shaft 641 (in the direction opposite to the opening operation) with respect to the first arm member 610 in such a manner that the second arm member 620 reaches one end of the swing width Wθ with respect to the sliding door 520 ( Fig. 1 to 4 and 7 to 10). By this operation of the link mechanism 600, the sliding door 520 in the half-open position is moved to a predetermined fully closed position.

[0028] A wire harness 1 of the present embodiment is mounted on a vehicle to electrically connect a first electrical connection target 511 mounted on the vehicle body 510 and a second electrical connection target 521 mounted on the sliding door 520 ( Fig. 1).

[0029] The first electrical connection target 511 is mounted on the side of the vehicle body 510, such as a power source (secondary battery, etc.) or an electrical component. The electrical component on the side of the vehicle body 510 is, for example, an acoustic device connected to a speaker of the sliding door 520, a drive device that drives a power seat, and the like. On the other hand, the second electrical connection target 521 is mounted on the sliding door 520, such as an electrical component and a switch. The electrical component of the sliding door 520 is, for example, a drive device that drives a power window, a speaker, and the like. In addition, the switch of the sliding door 520 is a switch for operating a power window, a switch for operating a power seat, and the like.

[0030] The wire harness 1 is laid between the first electrical connection target 511 and the second electrical connection target 521 ( Fig. 1). Then, the wire harness 1 is routed in the connecting mechanism 600 to follow the movement of the connecting mechanism 600.

[0031] The wire harness 1 includes a wire harness body 10 as a wiring component that electrically connects the first electrical connection target 511 and the second electrical connection target 521 ( Fig. 1 to 11). The wire harness body 10 may be formed of only one electrical wire bundle obtained by bundling a plurality of electrical wires, the entire electrical wire bundle may be covered with an external component such as a corrugated tube, or the electrical wire bundle may be partially covered with one or more external components. Furthermore, the wire harness 1 may include a communication line for exchanging signals between the vehicle body 510 side and the sliding door 520 side.

[0032] In the wire harness 1, one terminal of the wire harness body 10 is electrically connected directly or indirectly to the first electrical connection target 511, and the other terminal of the wire harness body 10 is electrically connected directly or indirectly to the second electrical connection target 521. For example, the wire harness 1 includes a first connector 21 mounted on one terminal of the wire harness body 10 and electrically connecting the wire harness body 10 directly or indirectly to the first electrical connection target 511, and a second connector 22 mounted on the other terminal of the wire harness body 10 and electrically connecting the wire harness body 10 directly or indirectly to the second electrical connection target 521 ( Fig. 1 to 11).

[0033] The wire harness body 10 includes a first guide portion 11 laid in the connecting mechanism 600, a second guide portion 12 laid closer to the vehicle body 510 side than the first guide portion 11, and a third guide portion 13 laid closer to the sliding door 520 side than the first guide portion 11 ( Fig. 1 to 11).

[0034] The first guide section 11 is guided to the other end section 612 of the first arm element 610 ( Fig. 1 to 11). For example, the first guide portion 11 is guided to the other end portion 612 of the first arm member 610 along the first arm member 610. The first guide portion 11 illustrated here is arranged along the first arm member 610 between one end portion 611 and the other end portion 612. The first guide portion 11 can be attached to the first arm member 610 at one end portion 611 using a wire harness attachment tool (hereinafter referred to as an "arm-side attachment tool") (not shown), and it cannot be attached to this one end portion 611.It should be noted that the arm-side fastening tool is, for example, a clamp or a clip provided with corresponding holding shapes with respect to the first guide portion 11 and the first arm member 610 (for example, a portion formed in a flat plate shape), a resin tape wrapping the first guide portion 11 and the first arm member 610, and the like.

[0035] The second guide portion 12 is, for example, a portion laid closer to the side of the vehicle body 510 than the one end portion 611 in a case where the first guide portion 11 is laid between the one end portion 611 and the other end portion 612 of the first arm member 610 in the wire harness body 10 ( Fig. 1 to 11). In the wire harness body 10, the first connector 21 of the terminal of the second guide portion 12 is electrically connected directly or indirectly to the first electrical connection target 511 on the vehicle body 510 side.

[0036] The second guide portion 12 may be directly or indirectly fixed to the vehicle body 510 and need not be fixed to the vehicle body 510 as described above. In a case where the second guide portion 12 is fixed to the side of the vehicle body 510, for example, a wire harness fixing tool (hereinafter referred to as "first wire harness fixing tool") is used for fixing (not shown). The first wire harness fixing tool is, for example, a clamp, a clip, or the like provided with corresponding holding shapes with respect to the second guide portion 12 and the vehicle body 510, or a member (for example, a portion formed in the shape of a flat plate) fixed to the vehicle body 510.

[0037] In addition, the third guide portion 13 is a portion of the wire harness body 10 that is laid closer to the side of the sliding door 520 than the other end portion 612 of the first arm member 610 ( Fig. 1 to 11). In the wire harness body 10, the second connector 22 of the terminal of the third routing section 13 is electrically connected directly or indirectly to the second electrical connection target 521.

[0038] The third guide portion 13 is fixed to a fixed portion 522 on the sliding door 520 side, which is provided between the terminal on the second electrical connection target 521 side and the end portion on the first guide portion 11 side, so as not to cause 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 a portion provided on another member that is fixed without relative displacement with respect to the sliding door 520. The connecting mechanism 600 includes a wire harness fixing tool (hereinafter referred to as a "second wire harness fixing tool") 30 that fixes the fixing portion 13a between the terminal of the third guide portion 13 on the second electrical connection target 521 side and the end portion on the first guide portion 11 side to the fixed portion 522 on the sliding door 520 side ( Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 7 and Fig. 10). The second wire harness fixing tool 30 is, for example, a clamp or a clip provided with corresponding holding shapes with respect to the fixed portion 522, such as a through hole provided in the fixing portion 13a of the third guide portion 13 and the sliding door 520 (for example, a portion formed in a flat plate shape).

[0039] In addition, the connecting mechanism 600 includes a wire harness guide tool 40 which is attached to the other end portion 612 of the first arm member 610 and determines the guide path of the third guide portion 13 ( Fig. 1 to 11). The wire harness guide tool 40 is a guide member that guides the third guide portion 13 to the fixed portion 522 on the sliding door 520 side, which is positioned in the direction intersecting the operating plane Pm of the link mechanism 600 with respect to itself. The wire harness guide tool 40 is fixed without relative displacement with respect to the other end portion 612 of the first arm member 610 and guides the third guide portion 13 from the end portion on the first guide portion 11 side toward the fixed portion 522 on the sliding door 520 side.

[0040] When the position of the relative rotation of the second arm member 620 around the axis of the third rotary shaft 651 with respect to the sliding door 520 is the center position of the swing width Wθ of the third relative rotation, the fixed portion 522 is provided on the sliding door 520 side on a plane (hereinafter, referred to as “virtual plane”) Pi in which the axial center of the second rotary shaft 641 and the third rotary shaft 651 lies, in the direction intersecting the operation plane Pm of the link mechanism 600 with respect to the wire harness guide tool 40 ( Fig. 1 and Fig. 10).

[0041] The wire harness guiding tool 40 includes a retraction opening 41 through which the first guide portion 11 guided to the other end portion 612 of the first arm member 610 along the first arm member 610 is pulled, a pull-out opening 42 through which the third guide portion 13 is pulled out and guided to the fixed portion 522 on the side of the sliding door 520, and a routing space 43 that guides the first guide portion 11 retracted through the retraction opening 41 and guides the third guide portion 13 to the pull-out opening 42 ( Fig. 2). A main body of the wire harness guiding tool 40 shown here is formed into an L-shaped tube, and its interior serves as an L-shaped routing space 43 for guiding the first guide portion 11 and the third guide portion 13. Then, the wire harness guiding tool 40 opens the extension opening 42 in the axial direction of the first rotary shaft 631 and the second rotary shaft 641, and guides the third guide portion 13 toward the fixed portion 522 on the side of the sliding door 520 beyond the extension opening 42. For example, the wire harness guiding tool 40 extends the third guide portion 13 along the axis of the second rotary shaft 641. Therefore, the extension opening 42 is provided on the axis of the second rotary shaft 641, and the third guide portion 13 is extended along this axis.

[0042] The fixed portion 522 on the side of the sliding door 520 is provided in the area of ​​the vehicle upper side or the vehicle lower side with respect to the wire harness guide tool 40. For example, when the relative rotational position of the second arm portion 620 about the axis of the third rotary shaft 651 with respect to the sliding door 520 is the center position of the swing width Wθ of the third relative rotation, the fixed portion 522 is provided in the area on the upper side of the vehicle or in the area on the lower side of the vehicle with respect to the wire harness guide tool 40. The fixed portion 522 shown here is provided in the area on the upper side of the vehicle with respect to the wire harness guide tool 40 when the second arm member 620 is in its center position.Specifically, when the second arm member 620 is located at the center position of the swing width Wθ of the third relative rotation, the fixed portion 522 is provided in the area on the upper side of the vehicle with respect to the wire harness guide tool 40 and at a position where the fixing portion 13a of the third guide portion 13, which is located on the upper side of the vehicle with respect to the wire harness guide tool 40, can be fixed by the second wire harness fixing tool 30.For example, when the second arm member 620 is at the center position of the swing width Wθ of the third relative rotation, the third guide portion 13 is pulled out from the pull-out opening 42 of the wire harness guide tool 40 to the top of the vehicle, and the fixing portion 13a positioned at the top of the vehicle as the pull-out opening 42 is fixed to the fixed portion 522 on the side of the sliding door 520 by the second wire harness fixing tool 30.

[0043] In the third guide portion 13, an end portion on the first guide portion 11 side is fixed to an arrangement position of the wire harness guide tool 40 following the movement and position of the first arm member 610, and the fixing portion 13a is fixed to a position of the fixed portion 522 on the sliding door 520 side.Therefore, in the third guide portion 13, when the second arm member 620 is relatively rotated about the axis of the third rotary shaft 651 with respect to the sliding door 520, the wire harness guide tool 40 moves in conjunction with the displacement of the other end portion 622 of the second arm member 620 (the other end portion 612 of the first arm member 610) with respect to the position of the fixed portion 522 on the sliding door 520 side, in such a manner that it is possible to bend and deform the wire harness guide tool 40 and the fixing portion 13a while keeping the amount of deformation after the displacement of the wire harness guide tool 40 small (. Fig. 9 and Fig. 10). That is, the wire harness 1 can make the wire harness body 10 follow the movement of the link mechanism 600 without overload.

[0044] Since the fixed portion 522 is provided on the sliding door 520 side on the virtual plane Pi and in the direction intersecting the operating plane Pm of the link mechanism 600 with respect to the wire harness guide tool 40, the third guide portion 13 can bend and deform the second arm member 620 with the same amount of deformation when the second arm member 620 is relatively rotated from the center position of the swing width Wθ of the third relative rotation to one end about the axis of the third rotary shaft 651 with respect to the sliding door 520 and when the second arm member 620 is relatively 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 guide portion 13 when the second arm member 620 is relatively rotated about the axis of the third rotary shaft 651 with respect to the sliding door 520.Therefore, the wire harness 1 can cause the wire harness body 10 to follow the movement of the link mechanism 600 without overload when the link mechanism 600 performs the third relative rotation.

[0045] Moreover, when the first arm member 610 and the second arm member 620 are rotated relative to each other about the axis of the second rotary shaft 641, the first guide portion 11 rotates about the axis of the third guide portion 13 in conjunction with the movement of the first arm member 610, so that it is possible to keep the amount of deformation between the wire harness guide tool 40 and the fixing portion 13a too low and to twist and deform around its own axis ( Fig. 11). That is, the wire harness 1 can make the wire harness body 10 follow the movement of the link mechanism 600 without overload.

[0046] Since the third guide portion 13 is pulled out from the wire harness guide tool 40 on the axis of the second rotary shaft 641, the third guide portion 13 can be twisted and deformed on the axis of the second rotary shaft 641 or near the axis of the second rotary shaft 641. Therefore, the third guide portion 13 can be twisted and deformed with a smaller amount of deformation than in a case where the third guide portion 13 is pulled out from the wire harness guide tool 40 at a position away from the axis of the second rotary shaft 641. Therefore, in the wire harness 1, the wire harness body 10 can follow the movement of the link mechanism 600 without overload when the first arm member 610 and the second arm member 620 are rotated relative to each other about the axis of the second rotary shaft 641.

[0047] Furthermore, the second arm member 620 shown here extends in the vehicle width direction and arranges the second rotary shaft 641 and the third rotary shaft 651 in the vehicle width direction when the relative rotation position around the axis of the third rotary shaft 651 with respect to the sliding door 520 is the center position of the swing width Wθ of the third relative rotation. Therefore, the virtual plane Pi shown here is a plane along the vehicle width direction and the vehicle height direction and orthogonal to the vehicle longitudinal direction (sliding direction) when the second arm member 620 is at its center position. It should be noted that the second arm member 620 rotates from the center position of the swing width Wθ of the third relative rotation to one end side and the other end side of the swing width Wθ around the axis of the third rotary shaft 651 with respect to the sliding door 520 at the same angle.

[0048] As described above, since the wire harness 1 of the present embodiment makes the wire harness body 10 follow the movement of the connecting mechanism 600 without overload, the durability of the wire harness body 10 can be improved.

[0049] In the wire harness according to the embodiment, since the fixed portion is provided on the sliding door side on the previous plane and in the direction intersecting the previous orthogonal plane with respect to the wire harness guiding tool, the third guide portion can bend and deform the second arm member with the same amount of deformation when the second arm member is relatively rotated from the center position of the swing width of the third relative rotation to one end about the axis of the third rotary shaft with respect to the sliding door and when the second arm member is relatively rotated from the center position of the swing width to the other end. Therefore, the wire harness can minimize the amount of bending deformation of the third guide portion when the second arm member is relatively rotated around the axis of the third rotary shaft with respect to the sliding door.That is, the wire harness according to the embodiment can make the wire harness body follow the movement of the link mechanism without overload when the link mechanism performs the third relative rotation.

Claims

[1] Wiring harness (1), comprising: a wire harness body (10) having a first guide portion (11) guided in a link mechanism (600) that couples a vehicle body (510) and a sliding door (520) and reciprocates the sliding door (520) in a sliding direction with respect to the vehicle body (510), a second guide portion (12) guided closer to a side of the vehicle body (510) than the first guide portion (11), and a third guide portion (13) guided closer to a side of the sliding door (520) than the first guide portion (11); a wire harness fastening tool (30) that fastens a fastening portion (13a) of the third guide portion (13) to a fixed portion (522) on the side of the sliding door (520) that is provided so as not to cause relative displacement with respect to the sliding door (520); and a wire harness guide tool (40) which determines a laying path of the third guide section (13), wherein the connecting mechanism (600) comprises a first arm member (610), one end portion (611) of which is coupled to the side of the vehicle body (510) and the first guide portion (11) of which is guided to the other end portion (612), a second arm member (620), one end portion (621) of which is connected to the side of the sliding door (520), a first rotary shaft (631) having a direction orthogonal to the sliding direction as an axial direction and capable of performing a first relative rotation between the vehicle body (510) and the one end portion (611) of the first arm member (610), a second rotary shaft (641) extending parallel to the first rotary shaft (631) and capable of performing a second relative rotation between the other end portion (612) of the first arm member (610), to which the wire harness guide tool (40) is attached, and the other end portion (622) of the second arm element (620), and a third rotary shaft (651),which runs parallel to the first rotary shaft (631) and the second rotary shaft (641) and is capable of performing a third relative rotation between the sliding door (520) and the one end portion (621) of the second arm member (620), wherein the sliding door (520) moves back and forth in the sliding direction with respect to the vehicle body (510) along a plane orthogonal (Pm) to the first rotary shaft (631), the second rotary shaft (641) and the third rotary shaft (651), the wire harness guide tool (40) guides the third guide portion (13) to the fixed portion (522) on the side of the sliding door (520) positioned in a direction intersecting the orthogonal plane (Pm) with respect to the wire harness guide tool (40), and the fixed portion (522) is provided on the side of the sliding door (520) in a plane in which an axis center of each of the second rotary shaft (641) and the third rotary shaft (651) is located, and in the direction intersecting the orthogonal plane (Pm) with respect to the wire harness guide tool (40) when a relative rotational position of the second arm member (620) about an axis of the third rotary shaft (651) with respect to the sliding door (520) is a center position of a swing width (Wθ) of the third relative rotation. [2] The wire harness (1) according to claim 1, wherein the fixed portion (522) is provided on the side of the sliding door (520) in an area on an upper side of a vehicle or an area on a lower side of a vehicle with respect to the wire harness guide tool (40) when the relative rotational position of the second arm member (620) about the axis of the third rotation shaft (651) with respect to the sliding door (520) is the center position. [3] The wire harness (1) according to claim 1 or 2, wherein the plane on the side of the sliding door (520) on which the fixed portion (522) is provided is a plane orthogonal to the sliding direction when the relative rotational position of the second arm member (620) about the axis of the third rotation shaft (651) with respect to the sliding door (520) is the center position. [4] The wire harness (1) according to claim 1, 2 or 3, wherein the wire harness guide tool (40) pulls out the third guide portion (13) on an axis of the second rotary shaft (641). [5] The wire harness (1) according to any one of claims 1 to 4, wherein the third guide portion (13) is bent and deformed between the wire harness guide tool (40) and the fixing portion (13a) when the second arm member (620) is rotated relative to the sliding door (520) about the axis of the third rotary shaft (651), and is twisted and deformed about its own axis between the wire harness guide tool (40) and the fixing portion (13a) when the first arm member (610) and the second arm member (620) are rotated relative to each other about the axis of the second rotary shaft (641). [6] The wiring harness (1) according to any one of claims 1 to 5, wherein the link mechanism (600), when moving the sliding door (520) from a fully closed position to a fully opened position, rotates the first arm member (610) relative to the vehicle body (510) about an axis of the first rotary shaft (631), and rotates the second arm member (620) positioned at one end of the swing width (Wθ) with respect to the sliding door (520) relatively about the axis of the third rotary shaft (651) with respect to the sliding door (520), while rotating the second arm member (620) relatively about the axis of the second rotary shaft (641) with respect to the first arm member (610) in such a manner that the second arm member (620) reaches the other end of the swing width (Wθ) with respect to the sliding door (520), and the first arm member (610) relatively about the axis of the second rotary shaft (641) rotates with respect to the second arm element (620),while the relative rotation of the first arm member (610) about the axis of the first rotary shaft (631) with respect to the vehicle body (510) continues and the second arm member (620) remains positioned at the other end of the swing width (Wθ) with respect to the sliding door (520).

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