Wire harness arrangement structure, link-type sliding door, and wire harness

Abstract

To provide a wire harness arrangement structure which enables proper arrangement of a wiring line, and to provide a link type slide door and a wire harness.SOLUTION: In a wire harness arrangement structure 1, a main link arm 11 supports a door body D in a manner that enables sliding of the door body D relative to a vehicle body B while rotating relative to the vehicle body B and the door body D. A sub link arm 21 is provided below the main link arm 11 in a height direction and supports the door body D in a manner that enables sliding of the door body D relative to the main link arm 11 and the vehicle body B while rotating relative to the vehicle body B and the door body D. A wiring line W is provided arranged along the sub link arm 21 and connects a vehicle body side connector BC with a door side connector DC. The wiring line W is arranged passing through the main link arm 11 side of a first connection part provided at a sub link mechanism 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wire harness routing structure, a link-type sliding door, and a wire harness. [Background technology]

[0002] Conventionally, for example, Patent Document 1 discloses a wiring structure for a sliding door. This wiring structure for a sliding door includes a sliding door having a sliding portion guided by a guide portion provided on the vehicle body side, a flexible conductor that electrically connects the sliding door to the vehicle body side and crosses a trajectory space through which the sliding portion passes, and a plate-like elastic body that is arranged along the conductor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-134626 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, when a sliding door is configured as a link-type sliding door that does not have a sliding portion but has two link arms that support the sliding door so that it can slide relative to the vehicle body, it is desirable, for example, to route a wiring line between the vehicle body and the sliding door while the sliding door is stably supported by each link arm.

[0005] Therefore, the present invention has been made in consideration of the above, and aims to provide a wire harness wiring structure, a link-type sliding door, and a wire harness that can properly wire wiring. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the wire harness routing structure of the present invention includes: a first link arm having one end rotatably connected to a vehicle body via a first vehicle body-side connecting portion and the other end rotatably connected to a door body via a first door-side connecting portion, and supporting the door body so that it can slide relative to the vehicle body while rotating relative to each of the vehicle body and the door body; a second link arm provided vertically below the first link arm, having one end rotatably connected to the vehicle body via a second vehicle body-side connecting portion and the other end rotatably connected to the door body via a second door-side connecting portion, and supporting the door body so that it can slide relative to the vehicle body together with the first link arm while rotating relative to each of the vehicle body and the door body; and a routing wire routed along the second link arm, connecting a connection target on the vehicle body side and a connection target on the door body side, the routing wire being routed through the first link arm side of the second vehicle body-side connecting portion.

[0007] The link-type sliding door of the present invention includes: a door body to be assembled to a vehicle body; a first link arm having one end rotatably connected to the vehicle body via a first vehicle-body-side connecting portion and the other end rotatably connected to the door body via a first door-side connecting portion, which rotatably supports the door body so that it can slide relative to the vehicle body while rotating relative to each of the vehicle body and the door body; a second link arm provided vertically below the first link arm, having one end rotatably connected to the vehicle body via a second vehicle-body-side connecting portion and the other end rotatably connected to the door body via a second door-side connecting portion, which rotatably supports the door body so that it can slide relative to the vehicle body while rotating relative to each of the vehicle body and the door body; and a wiring wire routed along the second link arm, which connects a connection target on the vehicle body side to a connection target on the door body side, and the wiring wire is routed through the first link arm side of the second vehicle-body-side connecting portion.

[0008] The wire harness according to the present invention is characterized in that it is provided vertically below a first link arm, the first link arm having one end rotatably connected to the vehicle body via a first vehicle body-side connecting portion and the other end rotatably connected to the door body via a first door-side connecting portion, and supporting the door body so that it can slide relative to the vehicle body while rotating relative to each of the vehicle body and the door body; it is provided along a second link arm having one end rotatably connected to the vehicle body via a second vehicle body-side connecting portion and the other end rotatably connected to the door body via a second door-side connecting portion, and supporting the door body so that it can slide relative to the vehicle body together with the first link arm while rotating relative to each of the vehicle body and the door body; and it includes a wiring line connecting a connection target on the vehicle body side and a connection target on the door body side, and the wiring line is routed through the first link arm side of the second vehicle body-side connecting portion. [Effects of the Invention]

[0009] In the wire harness routing structure, link-type sliding door, and wire harness of the present invention, the routing wire passes through the first link arm side of the second vehicle body side connecting part. Therefore, compared to, for example, routing the routing wire through the side opposite the first link arm side of the second vehicle body side connecting part, the vertical distance between the first vehicle body side connecting part and the second vehicle body side connecting part can be made wider, so the door body is stably supported, and as a result, the routing wire can be properly routed between the vehicle body and the door body. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a configuration example of a wire harness routing structure according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing a configuration example of the wire harness routing structure according to the embodiment. [Figure 3] FIG. 3 is a perspective view showing an example of the configuration of the main link mechanism according to the embodiment. [Figure 4] FIG. 4 is a perspective view showing an example of the configuration of the sub-link mechanism according to the embodiment. [Figure 5] FIG. 5 is a front view showing a configuration example of the wire harness routing structure according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Modes (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited to the contents described in the following embodiments. Furthermore, the components described below include those that can be easily imagined by a person skilled in the art and those that are substantially the same. Furthermore, the configurations described below can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the configuration can be made within the scope of the gist of the present invention.

[0012] [Embodiment] A wire harness routing structure 1, a link-type sliding door SD, and a wire harness WH according to an embodiment will be described with reference to the drawings.

[0013] In the following description, of the first, second, and third directions that intersect with one another, the first direction will be referred to as the "extension direction X," the second direction will be referred to as the "width direction Y," and the third direction will be referred to as the "height direction Z (intersecting direction Z)." The extension direction X, width direction Y, and height direction Z intersect with one another and are typically perpendicular to one another. The extension direction X is, for example, a direction along the extension direction (longitudinal direction) of a main link arm 11 (described later). The width direction Y is, for example, a direction along the short side direction of the main link arm 11. The height direction Z is a direction along the vehicle height direction (vehicle height direction) of the vehicle and also a direction along the vertical direction. The sliding direction S of the door body D is a direction along the extension direction X of the main link arm 11 when the door body D is closed, and in this case, corresponds to a direction along the overall length of the vehicle body B. In other words, the sliding direction S of the door body D is a direction that intersects with the rotation axis (rotation axis portions 121, 131 described below) of the main link arm 11, and is typically a direction that is perpendicular to the rotation axis. Unless otherwise specified, each direction used in the following description represents the direction when each portion is assembled together.

[0014] The wire harness routing structure 1 is applied to a vehicle, supports a door body D of the vehicle so that the door body D can slide relative to the vehicle body B, and electrically connects devices, connectors, and other connection targets provided on the vehicle body B side with devices, connectors, and other connection targets provided on the door body D side. In this example, a vehicle body connector BC is provided on the vehicle body B side as a connection target on the vehicle body B side, and a door connector DC is provided on the door body D side as a connection target on the door side. The vehicle body connector BC is provided closer to a sub-link mechanism 20 (described later) than a main link mechanism 10 (described later), and in this example, is provided above the sub-link mechanism 20 in the height direction Z. In other words, the vehicle body connector BC is provided on the main link mechanism 10 side of the sub-link mechanism 20. The door connector DC is provided between the main link mechanism 10 and the sub-link mechanism 20 (in this example, approximately midway between the main link mechanism 10 and the sub-link mechanism 20 in the height direction Z).

[0015] Here, in addition to the above-mentioned vehicle body connector BC, the vehicle body B further includes a vehicle body frame Bb, a first protruding support portion Bb1, and a second protruding support portion Bb2. The vehicle body frame Bb forms the framework of the vehicle body B and supports, for example, the engine, transmission, suspension, wheels, etc. The first protruding support portion Bb1 is provided on the vehicle body frame Bb located near the entrance Ba that is opened and closed by the door main body D, and is formed to protrude from the vehicle body frame Bb toward the passenger compartment. The first protruding support portion Bb1 is formed, for example, by bending a metal flat plate into a frame shape, and supports a first connecting portion 12 of a main link mechanism 10 (described later) by holding the first connecting portion 12 inside. The second protruding support portion Bb2 is provided alongside the first protruding support portion Bb1 along the height direction Z, is located below the first protruding support portion Bb1 in the height direction Z, and is formed to protrude from the vehicle body frame Bb toward the passenger compartment. The second protruding support portion Bb2 is formed, for example, by bending a metal flat plate into a frame shape, and holds a first connecting portion 22 of the sub-link mechanism 20 (described later) inside, thereby supporting the first connecting portion 22. A vehicle body side connector BC is provided above the second protruding support portion Bb2 in the height direction Z.

[0016] As shown in FIGS. 1 to 4, the wire harness routing structure 1 includes a main link mechanism 10, a sub-link mechanism 20, and a wiring wire W. The wiring wire W constitutes a wire harness WH. In other words, the wire harness WH includes the wiring wire W. The door body D, the main link mechanism 10, the sub-link mechanism 20, and the wiring wire W constitute a link-type sliding door SD. In other words, the link-type sliding door SD includes the door body D, the main link mechanism 10, the sub-link mechanism 20, and the wiring wire W.

[0017] Here, the wire harness routing structure 1 supports a door body D with a main link mechanism 10 and a sub-link mechanism 20, and by rotating a main link arm 11 and a sub-link arm 21 (described later), the door body D is slid along a sliding direction S relative to a vehicle body B without using a general sliding guide rail. The door body D is mounted to the vehicle body B, for example, as a rear seat door, and opens an entrance Ba for passengers to get in and out by sliding along the sliding direction S from a fully closed position to a fully open position relative to the vehicle body B, and closes the entrance Ba by sliding along the sliding direction S from a fully open position to a fully closed position relative to the vehicle body B. The wire harness routing structure 1 will be described in detail below.

[0018] 1 and 2, the main link mechanism 10, together with the sub-link mechanism 20, is a mechanism that supports the door body D slidably relative to the vehicle body B. The main link mechanism 10 includes a main link arm 11, a first connecting portion 12, and a second connecting portion 13.

[0019] The main link arm 11 is a member that supports the door body D so that the door body D can slide relative to the vehicle body B. The main link arm 11 includes a first arm 111 and a second arm 112, as shown in FIG.

[0020] The first arm 111 is an elongated metal member extending along the extension direction X. The first arm 111 is formed, for example, in a shape having a bent portion bent from the vehicle body B side toward the door body D side. Note that the first arm 111 is not limited to such a bent shape as long as it can support the door body D so that it can slide relative to the vehicle body B. The first arm 111 is formed in a columnar shape, and in this example, is formed in a quadrangular columnar shape. By forming the first arm 111 in a columnar shape, it can support the door body D more firmly than, for example, when it is formed in a cylindrical shape.

[0021] The second arm 112 is configured in the same manner as the first arm 111 described above. That is, the second arm 112 is a metal member formed in an elongated shape extending along the extension direction X. The second arm 112 is formed, for example, in a shape having a bent portion bent from the vehicle body B side toward the door main body D side. Note that the second arm 112 is not limited to such a bent shape as long as it can support the door main body D so that it can slide relative to the vehicle body B. The second arm 112 is disposed side by side with the first arm 111 in the height direction Z. The second arm 112 is formed in a columnar shape, and in this example, is formed in a quadrangular columnar shape. By forming the second arm 112 in a columnar shape, it is possible to more firmly support the door main body D than when it is formed in a cylindrical shape, for example.

[0022] Next, we will explain the first connecting portion 12. As shown in Figure 2, the first connecting portion 12 rotatably connects one end of the main link arm 11 in the extension direction X to the first protruding support portion Bb1 of the vehicle body B, and is configured to include a rotating shaft portion 121 and a bearing portion 122.

[0023] The pivot shaft 121 pivotally supports one end of the main link arm 11 in the extension direction X. The pivot shaft 121 is formed in a rod shape, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at one end of the main link arm 11 in the extension direction X. Specifically, the pivot shaft 121 is inserted into a hole at one end of the first arm 111 in the extension direction X and a hole at one end of the second arm 112 in the extension direction X in the main link arm 11. The pivot shaft 121 is provided with a stopper (not shown) for maintaining a constant distance between the first arm 111 and the second arm 112 in the height direction Z. This stopper prevents the first arm 111 and the second arm 112 from shifting positions in the height direction Z. Rotation shaft 121 extending along height direction Z supports one end of first arm 111 and one end of second arm 112 so as to be rotatable around the axis of rotation shaft 121. Note that the configuration for preventing first arm 111 and second arm 112 from shifting positions may be a configuration other than the stopper.

[0024] The bearing portion 122 connects the rotating shaft portion 121 to the vehicle body B. The bearing portion 122 includes a fixed plate 122a and a pair of support plates 122b.

[0025] The fixing plate 122a is a portion that is fixed to the first protruding support portion Bb1 of the vehicle body B. The fixing plate 122a is formed in a flat plate shape, extends along the height direction Z, and is fixed to the inside of the first protruding support portion Bb1 of the vehicle body B that is formed in a frame shape.

[0026] The pair of support plates 122b support the rotation shaft portion 121. Each of the pair of support plates 122b is formed in a flat plate shape, stands in the width direction Y from both ends in the height direction Z of the fixed plate 122a, and is positioned at a fixed interval in the height direction Z. The pair of support plates 122b has the rotation shaft portion 121 provided between one support plate 122b and the other support plate 122b. Each of the pair of support plates 122b has a hole portion for inserting the rotation shaft portion 121, and one end of the rotation shaft portion 121 is inserted into the hole portion of one support plate 122b, and the other end of the rotation shaft portion 121 is inserted into the hole portion of the other support plate 122b. The rotation shaft portion 121 inserted into the pair of support plates 122b has anti-detachment portions at both ends. The bearing portion 122 configured as described above has both ends of the pivot shaft portion 121 inserted into the first arm 111 and the second arm 112 supported by a pair of support plates 122b, and the fixed plate 122a is fixed to the first protruding support portion Bb1 of the vehicle body B.

[0027] Next, the second connecting portion 13 will be described. As shown in Fig. 3, the second connecting portion 13 rotatably connects the other end of the main link arm 11 in the extension direction X to the door main body D, and is configured in the same manner as the first connecting portion 12. That is, the second connecting portion 13 includes a rotation shaft portion 131 and a bearing portion 132.

[0028] The pivot shaft 131 pivotally supports the other end of the main link arm 11 in the extension direction X. The pivot shaft 131 is formed in a rod shape, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at the other end of the main link arm 11 in the extension direction X. Specifically, the pivot shaft 131 is inserted into a hole at the other end of the first arm 111 in the extension direction X and a hole at the other end of the second arm 112 in the extension direction X in the main link arm 11. The pivot shaft 131 is provided with a stopper (not shown) for maintaining a constant distance between the first arm 111 and the second arm 112 in the height direction Z. This stopper prevents the first arm 111 and the second arm 112 from shifting positions in the height direction Z. Rotation shaft 131 extending along height direction Z supports the other end of first arm 111 and the other end of second arm 112 so as to be rotatable around the axis of rotation shaft 131. Note that the configuration for preventing first arm 111 and second arm 112 from shifting positions may be a configuration other than the stopper.

[0029] The bearing portion 132 connects the rotating shaft portion 131 to the door main body D. The bearing portion 132 includes a fixed plate 132a and a pair of support plates 132b.

[0030] The fixed plate 132a is a portion that is fixed to the door main body D. The fixed plate 132a is formed in a flat plate shape, extends along the height direction Z, and is fixed to the door main body D.

[0031] The pair of support plates 132b support the rotation shaft portion 131. Each of the pair of support plates 132b is formed in a flat plate shape, stands in the width direction Y from both ends in the height direction Z of the fixed plate 132a, and is positioned at a fixed interval along the height direction Z. The pair of support plates 132b has the rotation shaft portion 131 provided between one support plate 132b and the other support plate 132b. Each of the pair of support plates 132b has a hole portion for inserting the rotation shaft portion 131, and one end of the rotation shaft portion 131 is inserted into the hole portion of one support plate 132b, and the other end of the rotation shaft portion 131 is inserted into the hole portion of the other support plate 132b. The rotation shaft portion 131 inserted into the pair of support plates 132b has anti-detachment portions at both ends. The bearing portion 132 configured as described above has a fixed plate 132a fixed to the door body D, with both ends of the rotating shaft portion 131 inserted into the first arm 111 and the second arm 112 supported by a pair of support plates 132b.

[0032] The main link arm 11 configured as described above rotates relative to each of the vehicle body B and the door body D, and supports the door body D together with the sub-link mechanism 20 so that the door body D can slide relative to the vehicle body B in the sliding direction S.

[0033] Next, the sub-link mechanism 20 will be described. The sub-link mechanism 20 is provided alongside the main link mechanism 10 in the height direction Z. In this example, the sub-link mechanism 20 is provided below the main link mechanism 10 in the height direction Z and supports the door body D slidably relative to the vehicle body B together with the main link mechanism 10. The sub-link mechanism 20 includes a sub-link arm 21, a first connecting portion 22, and a second connecting portion 23.

[0034] The sub-link arm 21 is provided alongside the main link arm 11 in the height direction Z, and includes a first arm 211 as shown in FIG.

[0035] The first arm 211 is a metal member formed in an elongated shape and extending along the extension direction X. The first arm 211 is formed, for example, in a linear shape along the extension direction X. Note that the first arm 211 is not limited to such a linear shape as long as it can support the door body D so that it can slide relative to the vehicle body B. The first arm 211 is configured to include a bottom surface portion 211a and a pair of side wall portions 211b. The bottom surface portion 211a is a portion located on one side in the width direction Y (the side opposite the door body D) and is formed in an elongated, flat plate shape along the extension direction X. The pair of side wall portions 211b are each formed in an elongated, flat plate shape along the extension direction X, and stand upright along the width direction Y from both ends of the bottom surface portion 211a in the height direction Z, and are positioned at a certain interval along the height direction Z. The first arm 211 is open on the other side (door main body D side) of the bottom surface portion 211a in the width direction Y, and is closed at both ends in the extension direction X. The first arm 211 receives a wiring wire W routed between the vehicle body B side and the door main body D side in a groove portion 211c (described later) formed by being surrounded by the bottom surface portion 211a and the pair of side wall portions 211b.

[0036] Here, one of the pair of side walls 211b (the side wall 211b on the main link arm 11 side) has a first cutout 221d and a second cutout 211e formed therein. The first cutout 221d is provided on one side of the side wall 211b in the extension direction X, and is formed by cutting out a portion of the side wall 211b in a rectangular shape. The first cutout 221d is an opening for guiding one end of the wiring wire W housed in the groove 211c to the outside of the groove 211c. One end of the wiring wire W housed in the groove 211c extends from the inside to the outside of the groove 211c through the first cutout 221d and is connected to the vehicle body connector BC. The second cutout 211e is provided on the other side of the side wall 211b in the extension direction X, and is formed by cutting out a portion of the side wall 211b in a rectangular shape. The second cutout 211e is an opening for guiding the other end of the wiring wire W housed in the groove 211c to the outside of the groove 211c. The other end of the wiring wire W housed in the groove 211c extends from the inside to the outside of the groove 211c through the second cutout 211e and is connected to the door-side connector DC.

[0037] Next, a description will be given of the first connecting portion 22. As shown in Fig. 4, the first connecting portion 22 rotatably connects one end of the sub-link arm 21 in the extension direction X to the vehicle body B, and is configured to include a rotating shaft portion 221 and a bearing portion 222.

[0038] The rotating shaft 221 rotatably supports one end of the sub-link arm 21 in the extension direction X. The rotating shaft 221 is formed in a rod shape, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at one end of the sub-link arm 21 in the extension direction X. Specifically, the rotating shaft 221 is inserted into a hole at one end of the first arm 211 in the extension direction X of the sub-link arm 21. The rotating shaft 221 extending along the height direction Z supports one end of the first arm 211 rotatably about the axis of the rotating shaft 221.

[0039] The bearing portion 222 connects the rotating shaft portion 221 to the vehicle body B. The bearing portion 222 includes a fixed plate 222a and a pair of support plates 222b.

[0040] The fixing plate 222a is a portion that is fixed to the second protruding support portion Bb2 of the vehicle body B. The fixing plate 222a is formed in a flat plate shape, extends along the height direction Z, and is fixed to the inside of the second protruding support portion Bb2 of the vehicle body B that is formed in a frame shape.

[0041] The pair of support plates 222b support the rotation shaft portion 221. Each of the pair of support plates 222b is formed in a flat plate shape, stands in the width direction Y from both ends in the height direction Z of the fixed plate 222a, and is positioned at a fixed interval in the height direction Z. The pair of support plates 222b has the rotation shaft portion 221 provided between one support plate 222b and the other support plate 222b. Each of the pair of support plates 222b has a hole portion for inserting the rotation shaft portion 221, and one end of the rotation shaft portion 221 is inserted into the hole portion of one support plate 222b, and the other end of the rotation shaft portion 221 is inserted into the hole portion of the other support plate 222b. The rotation shaft portion 221 inserted into the pair of support plates 222b is provided with anti-slip portions at both ends. The bearing portion 222 configured as described above has both ends of the rotating shaft portion 221 inserted into the first arm 211 supported by a pair of support plates 222b, and the fixed plate 222a is fixed to the second protruding support portion Bb2 of the vehicle body B.

[0042] Next, the second connecting portion 23 will be described. As shown in Fig. 4, the second connecting portion 23 rotatably connects the other end of the sub-link arm 21 in the extension direction X to the door main body D, and is configured in the same manner as the first connecting portion 22. That is, the second connecting portion 23 includes a rotation shaft portion 231 and a bearing portion 232.

[0043] The rotating shaft 231 rotatably supports the other end of the sub-link arm 21 in the extension direction X. The rotating shaft 231 is formed in a rod shape, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at the other end of the sub-link arm 21 in the extension direction X. Specifically, the rotating shaft 231 is inserted into a hole at the other end of the first arm 211 in the extension direction X in the sub-link arm 21. The rotating shaft 231 extending along the height direction Z supports the other end of the first arm 211 rotatably about the axis of the rotating shaft 231.

[0044] The bearing portion 232 connects the rotating shaft portion 231 to the door main body D. The bearing portion 232 includes a fixed plate 232a and a pair of support plates 232b.

[0045] The fixed plate 232a is a portion that is fixed to the door main body D. The fixed plate 232a is formed in a flat plate shape, extends along the height direction Z, and is fixed to the door main body D.

[0046] The pair of support plates 232b support the rotation shaft portion 231. Each of the pair of support plates 232b is formed in a flat plate shape, stands in the width direction Y from both ends in the height direction Z of the fixed plate 232a, and is positioned at a fixed interval in the height direction Z. The pair of support plates 232b has the rotation shaft portion 231 provided between one support plate 232b and the other support plate 232b. Each of the pair of support plates 232b has a hole portion for inserting the rotation shaft portion 231, and one end of the rotation shaft portion 231 is inserted into the hole portion of one support plate 232b, and the other end of the rotation shaft portion 231 is inserted into the hole portion of the other support plate 232b. The rotation shaft portion 231 inserted into the pair of support plates 232b is provided with anti-slip portions at both ends. The bearing portion 232 configured as described above has a fixed plate 232a fixed to the door body D, with both ends of the rotating shaft portion 231 inserted into the first arm 211 supported by a pair of support plates 232b.

[0047] The sub-link arm 21 configured as described above rotates relative to the vehicle body B and the door body D, and supports the door body D slidably relative to the vehicle body B together with the main link arm 11.

[0048] The wire harness routing structure 1 includes a groove 211c provided in the sub-link arm 21 as a structure for routing the wiring wire W in the link-type sliding door SD as described above.

[0049] The groove 211c is provided in the first arm 211 of the sub-link arm 21, and is an area surrounded by the bottom surface 211a and a pair of side wall portions 211b of the first arm 211. The groove 211c is formed in a groove shape along the extension direction X of the first arm 211, and the cross section of the groove 211c is formed in a rectangular shape. The groove 211c has an accommodation space portion capable of accommodating the wiring wire W, and the wiring wire W that is routed along the first arm 211 between the vehicle body B side and the door main body D side can be accommodated in the accommodation space portion, and the wiring wire W is accommodated in the accommodation space portion.

[0050] Next, the wiring wire W routed along the sub-link arm 21 will be described. The wiring wire W includes a power line for supplying power, a communication line for communication, and the like, and is provided with a connector WC1 at one end and a connector WC2 at the other end. The wiring wire W is routed along the sub-link arm 21, and in this example, is routed while being housed in the groove 211c of the sub-link arm 21. One end of the wiring wire W housed in the groove 211c extends from the inside to the outside of the groove 211c (toward the vehicle body connector BC) via the first cutout 221d, and the other end of the wiring wire W extends from the inside to the outside of the groove 211c (toward the door connector DC) via the second cutout 211e. As shown in FIGS. 4 and 5 , the wiring wire W extending toward the vehicle body connector BC is routed through the main link arm 11 side of the first connecting portion 22 connected to one end of the sub-link arm 21, and is routed through the main link arm 11 side of the second protruding support portion Bb2 that supports the first connecting portion 22. In other words, the wiring wire W is routed through the upper side in the height direction Z of the first connecting portion 22 connected to one end of the sub-link arm 21, and is routed through the upper side in the height direction Z of the second protruding support portion Bb2 that supports the first connecting portion 22. The wiring wire W extending toward the door-side connector DC is routed through the main link arm 11 side of the second connecting portion 23 connected to the other end of the sub-link arm 21. The connector WC1 of the wiring wire W routed through the first connecting portion 22 and the main link arm 11 side of the second protruding support portion Bb2 is connected to the vehicle body connector BC provided on the vehicle body B. The connector WC2 of the wiring wire W routed through the main link arm 11 side of the second connecting portion 23 is connected to the door-side connector DC provided on the door main body D. In this way, the wiring wire W is connected to the vehicle body-side connector BC in a state where it is routed through the first connecting portion 22 and the main link arm 11 side of the second protruding support portion Bb2.

[0051] In the wire harness routing structure 1 configured as described above, when the main link arm 11 is rotated by a drive unit (not shown) including a motor and the like provided in the vehicle body B, the main link arm 11 and the sub-link arm 21 rotate relative to the vehicle body B and the door body D, respectively, and the door body D is slid along the sliding direction S from a fully closed position to a fully open position, or from the fully open position to the fully closed position, relative to the vehicle body B. In other words, when the main link arm 11 is rotated by the drive unit, the main link arm 11 rotates relative to the vehicle body B and the door body D, respectively, around the rotation shaft 121 of the first connecting portion 12 and the rotation shaft 131 of the second connecting portion 13 as rotation axes. At this time, when the main link arm 11 is rotated by the drive unit, the sub-link arm 21 rotates relative to the vehicle body B and the door body D, respectively, around the rotation shaft 221 of the first connecting portion 22 and the rotation shaft 231 of the second connecting portion 23 as rotation axes. The wiring wire W routed along the sub-link arm 21 and housed in the groove portion 211c electrically connects the vehicle body side connector BC and the door side connector DC even while the sub-link arm 21 is rotating.

[0052] As described above, the wire harness routing structure 1 according to the embodiment includes the main link arm 11, the sub-link arm 21, and the wiring wire W. One end of the main link arm 11 is rotatably connected to the vehicle body B via the first connecting portion 12, and the other end is rotatably connected to the door body D via the second connecting portion 13. The main link arm 11 supports the door body D slidably with respect to the vehicle body B while rotating relative to each of the vehicle body B and the door body D. The sub-link arm 21 is provided below the main link arm 11 in the height direction Z, and has one end rotatably connected to the vehicle body B via the first connecting portion 22, and the other end is rotatably connected to the door body D via the second connecting portion 23. The sub-link arm 21 supports the door body D slidably with respect to the vehicle body B together with the main link arm 11 while rotating relative to each of the vehicle body B and the door body D. The wiring wire W is routed along the sub-link arm 21, and connects the vehicle body connector BC and the door connector DC. The wiring wire W is routed through the main link arm 11 side of the first connecting portion 22 provided in the sub-link mechanism 20.

[0053] Here, the vehicle has an obstacle P, which is an essential structure for the vehicle configuration and cannot be moved to another location, on the side opposite the main link arm 11 of the first connecting portion 22 of the sub-link mechanism 20. For example, when the door body D is used as a rear seat door, the obstacle P may be a body wall forming a wheel well, as shown in FIG. 5, on the side opposite the main link arm 11 of the first connecting portion 22 of the sub-link mechanism 20. In the wire harness routing structure of the comparative example, for example, if the wiring wire W is routed on the side opposite the main link arm 11 of the first connecting portion 22, a wiring space must be provided between the first connecting portion 22 and the obstacle P. In this case, the first connecting portion 22 must be moved closer to the first connecting portion 12 of the main link mechanism 10. Therefore, in the wire harness routing structure of the comparative example, the distance in the height direction Z between the first connecting portion 12 of the main link mechanism 10 and the first connecting portion 22 of the sub-link mechanism 20 is narrow, making it difficult to stably support the door body D. In contrast, in the wire harness routing structure 1 of the present embodiment, the wiring wire W is routed through the main link arm 11 side of the first connecting portion 22. This allows for a wider gap in the height direction Z between the first connecting portion 12 of the main link mechanism 10 and the first connecting portion 22 of the sub-link mechanism 20, compared to the comparative example in which the wiring wire W is routed through the side opposite to the main link arm 11 side of the first connecting portion 22. This allows for stable support of the door body D, allowing the door body D to slide stably along the sliding direction S. In this way, the wire harness routing structure 1 can properly route the wiring wire W between the vehicle body B and the door body D while ensuring the stability of the door body D. As described above, when the door body D is used as a rear seat door, an obstacle P, such as a body wall forming a wheel well, is provided on the side opposite to the main link arm 11 side of the first connecting portion 22 of the sub-link mechanism 20.Furthermore, since it is difficult to secure extra space between an obstacle P, such as a body wall that forms a wheel well, and the edge of the entrance Ba, if the wiring wire W is routed through the first connecting part 22 of the sub-link mechanism 20 on the obstacle P side, the obstacle P cannot be moved, and so it is necessary to move the first connecting part 22 of the sub-link mechanism 20 closer to the first connecting part 12 of the main link mechanism 10. The wire harness routing structure 1 of this embodiment is particularly effective when the routing space is limited due to the structure of the vehicle body B.

[0054] In the wire harness routing structure 1, the vehicle body B includes a vehicle body frame Bb that forms the framework of the vehicle body B, a first protruding support portion Bb1 that protrudes from the vehicle body frame Bb toward the vehicle interior and supports the first connecting portion 12, and a second protruding support portion Bb2 that protrudes from the vehicle body frame Bb toward the vehicle interior and supports the first connecting portion 22. The wiring wire W is routed through the main link arm 11 side of the second protruding support portion Bb2. With this configuration, the wire harness routing structure 1 can widen the gap in the height direction Z between the first protruding support portion Bb1 of the vehicle body B and the second protruding support portion Bb2 of the vehicle body B, and therefore the main link mechanism 10 and the sub-link mechanism 20 can be assembled to the vehicle body B so as to stably support the door main body D.

[0055] In the wire harness routing structure 1, the sublink arm 21 includes a groove 211c formed in a groove shape along the extension direction X of the sublink arm 21 and capable of accommodating the wiring wire W. The wiring wire W is routed while being accommodated in the groove 211c. With this configuration, the wire harness routing structure 1 can ensure a routing space for routing the wiring wire W between the vehicle body B and the door main body D by using the groove 211c of the sublink arm 21. Furthermore, the wire harness routing structure 1 can prevent the wiring wire W from being exposed to the outside by routing the wiring wire W between the vehicle body B and the door main body D while being accommodated in the groove 211c of the sublink arm 21. This can reduce the risk of the wiring wire W getting caught compared to conventional cases where the wiring wire W is exposed to the outside. Furthermore, the wire harness routing structure 1 can hide the wiring wire W from the outside, improving its appearance. In this way, the wire harness routing structure 1 can properly route the wiring wire W between the vehicle body B and the door body D.

[0056] The link-type sliding door SD includes a door body D to be mounted on a vehicle body B, a main link arm 11, a sub-link arm 21, and a wiring wire W, and the wiring wire W is routed through the main link arm 11 side of the first connecting portion 22. With this configuration, the link-type sliding door SD can widen the gap in the height direction Z between the first connecting portion 12 of the main link mechanism 10 and the first connecting portion 22 of the sub-link mechanism 20, so that the door body D can be stably supported and can be slid stably along the sliding direction S. As a result, a sliding door can be realized in which the wiring wire W is properly routed between the vehicle body B and the door body D while ensuring the stability of the door body D.

[0057] The wire harness WH includes a wiring line W that connects the vehicle body connector BC and the door side connector DC, and the wiring line W is routed through the main link arm 11 side of the first connecting portion 22. With this configuration, the wire harness WH can widen the gap in the height direction Z between the first connecting portion 12 of the main link mechanism 10 and the first connecting portion 22 of the sub-link mechanism 20, so that the main link mechanism 10 and the sub-link mechanism 20 can stably support the door body D. As a result, the wiring line W can be properly routed between the vehicle body B and the door body D while ensuring the stability of the door body D.

[0058] [Modification] Although an example has been described in which the wiring wire W is routed through the main link arm 11 side of the second protruding support portion Bb2 of the vehicle body B, this is not limited to this, and for example, the wiring wire W may be routed through the side opposite the main link arm 11 side of the second protruding support portion Bb2.

[0059] Although the door body D has been described as being assembled to the vehicle body B as a rear seat door, this is not limited to this and the door may be assembled to the vehicle body B as other doors, such as a driver's door or a passenger door.

[0060] The wire harness routing structure 1 has been described as an example in which the main link arm 11 is rotated by a drive unit, causing the main link arm 11 and the sub-link arm 21 to rotate relative to the vehicle body B and the door body D, respectively. However, this is not limited to this, and for example, without a drive unit, the main link arm 11 and the sub-link arm 21 may be rotated relative to the vehicle body B and the door body D, respectively, by the vehicle occupant sliding the door body D.

[0061] Although an example has been described in which the groove portion 211c has a rectangular cross section, this is not limited to this, and the cross section may be formed, for example, in a U-shape, C-shape, H-shape, etc. with a curved bottom surface.

[0062] The groove 211c has been described as having a bottom surface 211a positioned on one side in the width direction Y (the side opposite to the door main body D) and an opening on the other side in the width direction Y (the door main body D side), but is not limited thereto. For example, the bottom surface 211a may be positioned on one side in the height direction Z (for example, the upper side), and the bottom surface 211a may be opened on the other side in the height direction Z (for example, the lower side). In this case, the pair of side wall portions 211b are provided on both sides in the width direction Y of the bottom surface 211a.

[0063] The main link arm 11 has been described as an example in which a single arm member rotates around the pivot shafts 121, 131 at both ends as pivot axes, but is not limited to this. For example, the main link arm 11 may be configured to be divided in the extension direction X and each divided arm may be connected by a link.

[0064] Although the sub-link arm 21 has been described as an example in which a single arm member rotates around the rotation shafts 221, 231 at both ends as rotation axes, the present invention is not limited to this, and for example, the sub-link arm 21 may be configured such that it is divided in the extension direction X and each divided arm is connected by a link. In this case, a groove is formed in each divided arm, and each groove continues across each divided arm, and the wiring wire W is routed in this groove that continues across each divided arm.

[0065] Although the main link mechanism 10 has been described as an example in which the wiring wire W is not routed along the main link arm 11, this is not limited to this. For example, if the wiring wire W is routed along the sub-link arm 21, a separate wiring wire may also be routed along the main link arm 11.

[0066] Although the main link arm 11 has been described as being formed in a columnar shape, the present invention is not limited to this and may be formed, for example, in a shape having a groove, which may house the wiring wire W. The main link arm 11 may also be formed in a cylindrical shape, with the wiring wire W inserted inside for wiring.

[0067] Although an example in which the sub-link arm 21 is configured to include the groove 211c has been described, the present invention is not limited to this and the sub-link arm 21 may not include the groove 211c. In this case, the sub-link arm 21 is formed, for example, in a cylindrical or rod (columnar) shape, and when formed in a cylindrical shape, the wiring wire W is inserted inside and routed, and when formed in a rod (columnar) shape, the wiring wire W is routed alongside the arm. [Explanation of symbols]

[0068] 1 Wire harness routing structure 11 Main link arm (first link arm) 12 First coupling section (first body side coupling section) 13 Second connecting part (first door side connecting part) 21 Sub-link arm (second link arm) 211c Groove 22 First coupling section (second car body side coupling section) 23 Second connection part (second door side connection part) B body Bb body frame Bb1 1st protruding support part Bb2 2nd protruding support part BC Vehicle side connector (connection target on vehicle side) D Door body DC door connector (connection target on the door body) SD Link Sliding Door W wiring WH Wire Harness Z height direction (vertical direction)

Claims

1. a first link arm having one end rotatably connected to the vehicle body via a first vehicle-body-side connecting portion and the other end rotatably connected to the door body via a first door-side connecting portion, the first link arm rotating relatively to the vehicle body and the door body and supporting the door body slidably relative to the vehicle body; a second link arm that is provided vertically below the first link arm, one end of which is rotatably connected to the vehicle body via a second vehicle-body-side connecting portion and the other end of which is rotatably connected to the door body via a second door-side connecting portion, and that supports the door body slidably with respect to the vehicle body together with the first link arm while rotating relatively to each of the vehicle body and the door body; a wiring line that is routed along the second link arm and connects a connection target on the vehicle body side to a connection target on the door main body side, The wiring harness arrangement structure is characterized in that the wiring wire is arranged through the first link arm side of the second vehicle body side connecting portion.

2. the vehicle body includes a vehicle body frame that forms a skeleton of the vehicle body, a first protruding support portion that is provided to protrude from the vehicle body frame toward the vehicle compartment and supports the first vehicle body side connecting portion, and a second protruding support portion that is provided to protrude from the vehicle body frame toward the vehicle compartment and supports the second vehicle body side connecting portion, The wire harness routing structure according to claim 1 , wherein the routing wire passes through the second protruding support portion on the first link arm side.

3. the second link arm includes a groove portion formed in a groove shape along an extension direction of the second link arm and capable of accommodating the wiring wire; The wire harness routing structure according to claim 1 or 2, wherein the routing wire is routed in a state where the routing wire is housed in the groove portion.

4. a door body that is attached to the vehicle body; a first link arm having one end rotatably connected to the vehicle body via a first vehicle-body-side connecting portion and the other end rotatably connected to the door body via a first door-side connecting portion, the first link arm rotating relatively to the vehicle body and the door body and supporting the door body slidably relative to the vehicle body; a second link arm that is provided vertically below the first link arm, one end of which is rotatably connected to the vehicle body via a second vehicle-body-side connecting portion and the other end of which is rotatably connected to the door body via a second door-side connecting portion, and that supports the door body slidably with respect to the vehicle body together with the first link arm while rotating relatively to each of the vehicle body and the door body; a wiring line that is routed along the second link arm and connects a connection target on the vehicle body side to a connection target on the door main body side, The link-type sliding door is characterized in that the wiring wire is routed through the first link arm side of the second vehicle body side connecting portion.

5. a wiring line that is disposed vertically below a first link arm, the first link arm having one end rotatably connected to the vehicle body via a first vehicle-body-side connecting portion and the other end rotatably connected to the door body via a first door-side connecting portion, and that supports the door body slidably with respect to the vehicle body while rotating relatively to each of the vehicle body and the door body; a wiring line that is disposed along a second link arm having one end rotatably connected to the vehicle body via a second vehicle-body-side connecting portion and the other end rotatably connected to the door body via a second door-side connecting portion, and that supports the door body slidably with respect to the vehicle body together with the first link arm while rotating relatively to each of the vehicle body and the door body; The wiring harness is characterized in that the wiring wire is routed through the first link arm side of the second vehicle body side connecting portion.

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