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: A wire harness arrangement structure 1 includes at least a sub link arm 21 and a wiring line W. The sub link arm 21 is rotatably connected at one end to a vehicle body B through a first connection part and rotatably connected at the other end to a door body D through a second connection part, and supports the door body D in a manner that enables sliding of the door body D relative to the vehicle body B while rotating relative to the vehicle body B and the door body D. The 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 an area below the first connection part connected to the sub link arm 21 in a height direction Z in such a state that the door body D is slid to be fully open.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] Conventionally, for example, Patent Document 1 describes 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 and the vehicle body side and crosses the trajectory space through which the sliding portion passes, and a plate-shaped elastic body disposed along the conductor.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, as a configuration of a sliding door, when configuring a link-type sliding door including a link arm that supports the sliding door so as to be slidable with respect to the vehicle body instead of having a sliding portion, for example, it is necessary to route a wiring line between the vehicle body and the sliding door. In this case, it is desired that the wiring line does not interfere with boarding and alighting when a passenger opens the sliding door to board and alight. <​​​​​​​​​To solve the above-mentioned problems and achieve the objective, the wire harness routing structure according to the present invention comprises: a link arm, one end of which is rotatably connected to the vehicle body via a vehicle body-side connecting portion and the other end of which is rotatably connected to the door body via a door-side connecting portion, and which supports the door body so as to be slidable relative to the vehicle body while rotating relative to the vehicle body and the door body, respectively; and a routing wire provided and routed along the link arm, which connects the connection target on the vehicle body side and the connection target on the door body side, wherein the routing wire is routed below the vehicle body-side connecting portion in the vertical direction when the door body slides and is fully open.

[0007] The link-type sliding door according to the present invention comprises a door body assembled to a vehicle body; a link arm, one end of which is rotatably connected to the vehicle body via a vehicle body-side connecting portion and the other end of which is rotatably connected to the door body via a door-side connecting portion, and which supports the door body so as to be slidable relative to the vehicle body while rotating relative to the vehicle body and the door body, respectively; and a cable provided and routed along the link arm, which connects the connection target on the vehicle body side and the connection target on the door body side, wherein the cable is routed to pass vertically below the vehicle body-side connecting portion when the door body slides and is fully open.

[0008] The wire harness according to the present invention is rotatably connected at one end to the vehicle body via a vehicle body-side connecting portion and at the other end to the door body via a door-side connecting portion, and is routed along a link arm that supports the door body so as to be slidable relative to the vehicle body while rotating relative to the vehicle body and the door body, respectively, and comprises a wire that connects the connection target on the vehicle body side and the connection target on the door body side, wherein the wire is routed below the vehicle body-side connecting portion in the vertical direction when the door body slides and is fully open. [Effects of the Invention]

[0009] The wire harness routing structure, link-type sliding door, and wire harness according to the present invention are such that the wires are routed vertically below the vehicle body side connecting portion when the door body slides and is fully closed. As a result, the wires do not obstruct entry or exit when the occupant opens the door body to get in or out, and the wires can be routed properly. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a perspective view showing an example of the configuration of a wire harness routing structure according to an embodiment. [Figure 2] Figure 2 is an exploded perspective view showing an example of the configuration of a wire harness routing structure according to an embodiment. [Figure 3] Figure 3 is a perspective view showing an example of the configuration of the main link mechanism according to the embodiment. [Figure 4] Figure 4 is a perspective view showing an example of the configuration of a sub-link mechanism according to an embodiment. [Figure 5] Figure 5 is a front view showing the fully open state of the door body according to the embodiment. [Figure 6] Figure 6 is a front view showing the fully closed state of the door body according to the embodiment. [Modes for carrying out the invention]

[0011] 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 those skilled in the art, and those that are substantially the same. Moreover, the components described below can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the components can be made without departing from the spirit of the present invention.

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

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

[0014] The wire harness routing structure 1 is applied to a vehicle and supports the door body D so that it can slide relative to the vehicle body B, and electrically connects equipment, connectors, and other connection targets provided on the vehicle body B side to equipment, connectors, and other connection targets provided on the door body D side. In this example, a vehicle body side connector BC is provided on the vehicle body B side as a connection target on the vehicle body B side, and a door side connector DC is provided on the door body D side as a connection target on the door side. The vehicle body side connector BC is provided closer to the sub-link mechanism 20, which will be described later, than to the main link mechanism 10, which will be described later, and in this example, it is provided below the sub-link mechanism 20 in the height direction Z. In other words, the vehicle body side connector BC is provided on the side of the sub-link mechanism 20 opposite to the main link mechanism 10 side. The door side 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 vehicle body side connector BC described above, the vehicle body B further comprises 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 skeleton 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 / exit Ba which is opened and closed by the door 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 plate into a frame shape, and supports the first connecting portion 12 of the main link mechanism 10, which will be described later, by holding the first connecting portion 12 inward. 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 plate into a frame shape, and supports the first connecting portion 22 of the sub-link mechanism 20, which will be described later, by holding it inward. A vehicle body side connector BC is provided on the lower side of the second protruding support portion Bb2 in the height direction Z.

[0016] As shown in Figures 1 to 4, the wire harness routing structure 1 comprises a main link mechanism 10, a sub-link mechanism 20, and a routing wire W. The routing wire W constitutes the wire harness WH. In other words, it can be said that the wire harness WH comprises the routing wire W. Furthermore, the door body D, the main link mechanism 10, the sub-link mechanism 20, and the routing wire W constitute a link-type sliding door SD. In other words, it can be said that the link-type sliding door SD comprises the door body D, the main link mechanism 10, the sub-link mechanism 20, and the routing wire W.

[0017] Here, the wire harness routing structure 1 supports the door body D by means of the main link mechanism 10 and the sub-link mechanism 20. By rotating the main link arm 11 and the sub-link arm 21, which will be described later, the door body D can be slid along the sliding direction S with respect to the vehicle body B without using a general guide rail for sliding. The door body D is, for example, assembled to the vehicle body B as a rear seat door, and by sliding along the sliding direction S from the fully closed position to the fully open position with respect to the vehicle body B, an entrance / exit Ba for passengers to get on and off is opened. On the other hand, by sliding along the sliding direction S from the fully open position to the fully closed position with respect to the vehicle body B, the entrance / exit Ba is closed. Hereinafter, the wire harness routing structure 1 will be described in detail.

[0018] As shown in FIGS. 1 and 2, the main link mechanism 10 is a mechanism that supports the door body D slidably with respect to the vehicle body B together with the sub-link mechanism 20. 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 slidably with respect to the vehicle body B. As shown in FIG. 3, the main link arm 11 includes a first arm 111 and a second arm 112.

[0020] The first arm 111 is a metal member that extends along the extending direction X and is formed in a long shape. The first arm 111 is, for example, formed in a shape having a bent portion that bends from the vehicle body B side to 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 slidably with respect to the vehicle body B. The first arm 111 is formed in a columnar shape, and in this example, it is formed in a quadrangular columnar shape. By being formed in a columnar shape, the first arm 111 can support the door body D more firmly, for example, compared to the case where 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 that extends along the extending direction X and is formed in an elongated shape. The second arm 112 is formed in a shape that has a bent portion that bends from the vehicle body B side to the door body D side. However, the second arm 112 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 second arm 112 is arranged side by side with the first arm 111 along the height direction Z. The second arm 112 is formed in a columnar shape, and in this example, it is formed in a rectangular columnar shape. By being formed in a columnar shape, the second arm 112 can support the door body D more firmly compared to, for example, if it were formed in a cylindrical shape.

[0022] Next, the first connecting portion 12 will be described. As shown in Figure 2, the first connecting portion 12 rotatably connects one end of the main link arm 11 in the extending direction X to the first protruding support portion Bb1 of the vehicle body B, and is composed of a pivot shaft portion 121 and a bearing portion 122.

[0023] The pivot shaft portion 121 rotatably supports one end of the main link arm 11 in the extending direction X. The pivot shaft portion 121 is formed in a rod shape, extends along the height direction Z, and is inserted through a hole (cylindrical hole) at one end of the main link arm 11 in the extending direction X. Specifically, the pivot shaft portion 121 is inserted through the hole at one end of the first arm 111 in the extending direction X and the hole at one end of the second arm 112 in the extending direction X of the main link arm 11. The pivot shaft portion 121 is provided with a stopper (not shown) to maintain 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 position in the height direction Z. A pivot shaft portion 121 extending along the height direction Z supports one end of the first arm 111 and one end of the second arm 112 so as to be rotatable around the axis of the pivot shaft portion 121. Note that a configuration other than the stopper described above may be used to prevent misalignment between the first arm 111 and the second arm 112.

[0024] The bearing portion 122 connects the pivot shaft portion 121 to the vehicle body B. The bearing portion 122 is composed of a fixing plate 122a and a pair of support plates 122b.

[0025] The fixing plate 122a is the part 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, which is formed in a frame shape.

[0026] The pair of support plates 122b support the pivot shaft portion 121. Each of the pair of support plates 122b is formed in a flat shape and is erected along the width direction Y from both ends of the fixed plate 122a in the height direction Z, and is positioned at a constant distance along the height direction Z. The pivot shaft portion 121 is provided between one of the support plates 122b and the other support plate 122b. Each of the pair of support plates 122b has a hole for inserting the pivot shaft portion 121, with one end of the pivot shaft portion 121 inserted through the hole in one support plate 122b and the other end of the pivot shaft portion 121 inserted through the hole in the other support plate 122b. The pivot shaft portion 121 inserted through the pair of support plates 122b is provided with retaining parts at both ends. In the bearing portion 122 configured as described above, both ends of the pivot shaft portion 121, which is inserted through the first arm 111 and the second arm 112, are supported by a pair of support plates 122b, and the fixing 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 Figure 3, the second connecting portion 13 rotatably connects the other end of the main link arm 11 in the extending direction X to the door body D, and is configured in the same way as the first connecting portion 12. That is, the second connecting portion 13 is composed of a pivot shaft portion 131 and a bearing portion 132.

[0028] The pivot shaft portion 131 rotatably supports the other end of the main link arm 11 in the extending direction X. The pivot shaft portion 131 is formed in a rod shape, extends along the height direction Z, and is inserted through a hole (cylindrical hole) at the other end of the main link arm 11 in the extending direction X. Specifically, the pivot shaft portion 131 is inserted through the hole at the other end of the first arm 111 in the extending direction X and the hole at the other end of the second arm 112 in the extending direction X. The pivot shaft portion 131 is provided with a stopper (not shown) to maintain 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 position in the height direction Z. A pivot shaft portion 131 extending along the height direction Z supports the other end of the first arm 111 and the other end of the second arm 112 so as to be rotatable around the axis of the pivot shaft portion 131. Note that a configuration other than the stopper described above may be used to prevent misalignment between the first arm 111 and the second arm 112.

[0029] The bearing portion 132 connects the pivot shaft portion 131 to the door body D. The bearing portion 132 is composed of a fixing plate 132a and a pair of support plates 132b.

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

[0031] A pair of support plates 132b support the pivot shaft portion 131. Each of the pair of support plates 132b is formed in a flat shape and is erected from both ends of the fixed plate 132a in the height direction Z along the width direction Y, and is positioned at a constant distance along the height direction Z. The pivot shaft portion 131 is provided between one of the support plates 132b and the other support plate 132b. Each of the pair of support plates 132b has a hole for inserting the pivot shaft portion 131, with one end of the pivot shaft portion 131 inserted through the hole in one support plate 132b and the other end of the pivot shaft portion 131 inserted through the hole in the other support plate 132b. The pivot shaft portion 131 inserted through the pair of support plates 132b is provided with retaining parts at both ends. In the bearing portion 132 configured as described above, the fixing plate 132a is fixed to the door body D with the pivot shaft portion 131, which is inserted through the first arm 111 and the second arm 112, supported at both ends by a pair of support plates 132b.

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

[0033] Next, the sub-link mechanism 20 will be described. The sub-link mechanism 20 is provided alongside the main link mechanism 10 along the height direction Z, and in this example, it is provided below the main link mechanism 10 in the height direction Z, and together with the main link mechanism 10, it supports the door body D so that it can slide relative to the vehicle body B. The sub-link mechanism 20 consists of 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 along the height direction Z, and is configured to include the first arm 211, as shown in Figure 4.

[0035] The first arm 211 is a metal member that extends along the extending direction X and is formed in an elongated shape. The first arm 211 is formed in a straight line along the extending direction X. However, the first arm 211 is not limited to such a straight 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 composed of a bottom surface portion 211a and a pair of side wall portions 211b. The bottom surface portion 211a is the portion located on one side in the width direction Y (opposite side from the door body D) and is formed in an elongated and flat shape along the extending direction X. The pair of side wall portions 211b are each formed in an elongated and flat shape along the extending direction X, and are erected along the width direction Y from both ends in the height direction Z of the bottom surface portion 211a and are positioned at a constant distance along the height direction Z. The first arm 211 has an opening on the other side (door body D side) in the width direction Y of the bottom surface 211a, and both ends in the extending direction X are closed. The first arm 211 accommodates the cable W routed between the vehicle body B side and the door body D side in a groove 211c, which is formed by the bottom surface 211a and a pair of side wall portions 211b, as described later.

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

[0037] Next, the first connecting portion 22 will be described. As shown in Figure 4, the first connecting portion 22 rotatably connects one end of the sub-link arm 21 in the extending direction X to the vehicle body B. Due to the structure of the link-type sliding door SD, the first connecting portion 22 is located on the path through which occupants get on and off, and is positioned in a place where it may be stepped on by the occupants' feet when they get on and off through the entrance / exit Ba. As shown in Figure 5, for example, when viewed from the direction in which occupants get on and off (width direction Y) with the door body D fully open, the first connecting portion 22 is located on the inside of the entrance / exit Ba that is opened and closed by the door body D. As shown in Figure 5, for example, when viewed from the direction in which occupants get on and off (width direction Y) with the door body D fully open, the first connecting portion 22 is located on the rear side of the entrance / exit Ba in the sliding direction S (the side that moves the door body D to the fully open state along the sliding direction S) and on the lower side of the entrance / exit Ba in the height direction Z. Furthermore, when viewed from the direction (width direction Y) in which an occupant enters or exits with the door body D fully open, the first connecting portion 22 overlaps with the door body D when it has moved to the rear position when fully open. The sub-link arm 21 connected to the first connecting portion 22 is provided across the entrance / exit Ba when viewed from the height direction Z with the door body D fully open. Thus, due to the structure of the link-type sliding door SD, the first connecting portion 22 is provided in a position where it may be stepped on by an occupant's foot when entering or exiting the entrance / exit Ba. As shown in Figure 4, the first connecting portion 22 is composed of a pivot shaft portion 221 and a bearing portion 222.

[0038] The pivot shaft portion 221 rotatably supports one end of the sub-link arm 21 in the extending direction X. The pivot shaft portion 221 is formed in a rod shape, extends along the height direction Z, and is inserted through a hole (cylindrical hole) at one end of the sub-link arm 21 in the extending direction X. Specifically, in the sub-link arm 21, the pivot shaft portion 221 is inserted through a hole at one end of the first arm 211 in the extending direction X. The pivot shaft portion 221, which extends along the height direction Z, supports one end of the first arm 211 so as to be rotatable around the axis of the pivot shaft portion 221.

[0039] The bearing portion 222 connects the pivot shaft portion 221 to the vehicle body B. The bearing portion 222 is composed of a fixing plate 222a and a pair of support plates 222b.

[0040] The fixing plate 222a is the part 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, which is formed in a frame shape.

[0041] A pair of support plates 222b support the pivot shaft portion 221. Each of the pair of support plates 222b is formed in a flat shape and is erected from both ends of the fixed plate 222a in the height direction Z along the width direction Y, and is positioned at a constant distance along the height direction Z. The pivot shaft portion 221 is provided between one of the support plates 222b and the other support plate 222b. Each of the pair of support plates 222b has a hole for inserting the pivot shaft portion 221, with one end of the pivot shaft portion 221 inserted through the hole of one support plate 222b and the other end of the pivot shaft portion 221 inserted through the hole of the other support plate 222b. The pivot shaft portion 221 inserted through the pair of support plates 222b is provided with retaining parts at both ends. In the bearing portion 222 configured as described above, both ends of the pivot shaft portion 221, which is inserted through the first arm 211, are supported by a pair of support plates 222b, and the fixing 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 Figure 4, the second connecting portion 23 rotatably connects the other end of the sub-link arm 21 in the extending direction X to the door body D, and is configured in the same way as the first connecting portion 22. That is, the second connecting portion 23 is composed of a pivot shaft portion 231 and a bearing portion 232.

[0043] The pivot shaft portion 231 rotatably supports the other end of the sub-link arm 21 in the extending direction X. The pivot shaft portion 231 is formed in a rod shape, extends along the height direction Z, and is inserted through a hole (cylindrical hole) at the other end of the sub-link arm 21 in the extending direction X. Specifically, the pivot shaft portion 231 is inserted through a hole at the other end of the first arm 211 in the extending direction X in the sub-link arm 21. The pivot shaft portion 231, which extends along the height direction Z, supports the other end of the first arm 211 so as to be rotatable around the axis of the pivot shaft portion 231.

[0044] The bearing portion 232 connects the pivot shaft portion 231 to the door body D. The bearing portion 232 is composed of a fixing plate 232a and a pair of support plates 232b.

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

[0046] A pair of support plates 232b support the pivot shaft portion 231. Each of the pair of support plates 232b is formed in a flat shape and is erected from both ends of the fixed plate 232a in the height direction Z along the width direction Y, and is positioned at a constant distance along the height direction Z. The pivot shaft portion 231 is provided between one of the support plates 232b and the other support plate 232b. Each of the pair of support plates 232b has a hole for inserting the pivot shaft portion 231, with one end of the pivot shaft portion 231 inserted through the hole in one support plate 232b and the other end of the pivot shaft portion 231 inserted through the hole in the other support plate 232b. The pivot shaft portion 231 inserted through the pair of support plates 232b is provided with retaining parts at both ends. In the bearing portion 232 configured as described above, the fixing plate 232a is fixed to the door body D with the pivot shaft portion 231, which is inserted through the first arm 211, supported at both ends by a pair of support plates 232b.

[0047] As described above, the sub-link arm 21 rotates relative to the vehicle body B and the door body D, and together with the main link arm 11, supports the door body D so that it can slide relative to the vehicle body B.

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

[0049] The groove 211c is provided on the first arm 211 of the sub-link arm 21 and is a region formed by being 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 extending direction X on the first arm 211, and the cross-section of the groove 211c is rectangular. The groove 211c has a storage space that can accommodate the cable W, and the cable W routed along the first arm 211 between the vehicle body B side and the door body D side can be accommodated in the storage space, and the cable W is housed in the storage space.

[0050] Next, the wiring cable W routed along the sub-link arm 21 will be described. The wiring cable W consists of power lines for supplying power and communication lines for communication, etc., and has a connector WC1 at one end and a connector WC2 at the other end. The wiring cable W is routed along the sub-link arm 21, and in this example, it is routed while being housed in the groove 211c of the sub-link arm 21. One end of the wiring cable W housed in the groove 211c extends from the inside to the outside (towards the vehicle body side connector BC) of the groove 211c via a first notch 221d, and the other end of the wiring cable W extends from the inside to the outside (towards the door side connector DC) of the groove 211c via a second notch 211e. Furthermore, as shown in Figure 5, the wiring cable W extending to the vehicle body connector BC is routed below the height Z of the first connecting portion 22 connected to one end of the sub-link arm 21, when the door body D slides and is fully open, and also below the height Z of the second protruding support portion Bb2 that supports the first connecting portion 22. In other words, the wiring cable W is routed on the opposite side of the first connecting portion 22 from the main link arm 11 side, and also on the opposite side of the second protruding support portion Bb2 that supports the first connecting portion 22 from the main link arm 11 side. Additionally, the wiring cable W extending to the door-side connector DC is routed above the height Z of the second connecting portion 23 connected to the other end of the sub-link arm 21. In other words, the wiring cable W extending to the door-side connector DC is routed on the main link arm 11 side of the second connecting portion 23 connected to the other end of the sub-link arm 21. Connector WC1 of the cable W routed through the lower side in the height direction Z of the first connecting portion 22 and the second protruding support portion Bb2 is connected to the vehicle body side connector BC provided on the vehicle body B side. Connector WC2 of the cable 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 body D side. In this way, the cable W is connected to the vehicle body side connector BC while routed through the lower side in the height direction Z of the first connecting portion 22 and the second protruding support portion Bb2.Furthermore, as shown in Figure 6, the cable W is routed under the height Z of the first connecting portion 22 even when the door body D slides and is fully closed, and also under the height Z of the second protruding support portion Bb2 that supports the first connecting portion 22. In other words, the cable W is routed under the height Z of the first connecting portion 22 and also under the height Z of the second protruding support portion Bb2 that supports the first connecting portion 22, regardless of the state of the door body D between fully open and fully closed.

[0051] In the wire harness routing structure 1 configured as described above, the main link arm 11 is rotated by a drive unit (not shown) including a motor provided on the vehicle body B, 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, and sliding the door body D along the slide direction S from the fully closed position to the fully open position, or from the fully open position to the fully closed position, relative to the vehicle body B. In other words, the main link arm 11 rotates relative to the vehicle body B and the door body D, respectively, with the pivot shaft portion 121 of the first connecting portion 12 and the pivot shaft portion 131 of the second connecting portion 13 as pivot axes, as rotated by the drive unit. At the same time, the sub-link arm 21 rotates relative to the vehicle body B and the door body D, respectively, with the pivot shaft portion 221 of the first connecting portion 22 and the pivot shaft portion 231 of the second connecting portion 23 as pivot axes, as the main link arm 11 rotates by the drive unit. The cable W, routed along the sub-link arm 21 and housed in the groove 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 comprises at least a sub-link arm 21 and a routing wire W. The sub-link arm 21 is rotatably connected at one end to the vehicle body B via a first connecting portion 22 and at the other end to the door body D via a second connecting portion 23, and supports the door body D so that it can slide relative to the vehicle body B while rotating relative to the vehicle body B and the door body D, respectively. The routing wire W is provided routed along the sub-link arm 21 and connects the vehicle body side connector BC and the door side connector DC. The routing wire W is routed below the height direction Z of the first connecting portion 22 connected to the sub-link arm 21 when the door body D slides and is fully open.

[0053] With this configuration, the wire harness routing structure 1 has the wire W routed under the first connecting portion 22 of the sub-link arm 21, so when an occupant opens the door body D to get in and out, the wire W does not obstruct entry or exit, thereby allowing the occupant to get in and out smoothly. In other words, the wire harness routing structure 1 prevents the wire W routed along the sub-link arm 21 from being stepped on by the occupant when an occupant opens the door body D to get in and out. As a result, the wire harness routing structure 1 can prevent damage to the wire W and prevent a decrease in the durability of the wire W. In this way, the wire harness routing structure 1 can properly route the wire W.

[0054] In the wire harness routing structure 1 described above, the wire W is routed through the lower side of the first connecting portion 22 in the height direction Z when the door body D slides and is fully closed. With this configuration, the wire harness routing structure 1 can prevent the feet of an occupant seated in a seat from touching the wire W when the door body D is fully closed.

[0055] In the wire harness routing structure 1 described above, the first connecting portion 22 connected to the sub-link arm 21 is located on the inside of the entrance / exit Ba, which is opened and closed by the door body D, when viewed from the direction in which an occupant enters or exits with the door body D fully open. The wire harness routing structure 1 can prevent the wire W routed along the sub-link arm 21 from being stepped on by an occupant, even when the first connecting portion 22 connected to the sub-link arm 21 is located on the entrance / exit path, allowing the occupant to enter or exit smoothly through the entrance / exit Ba.

[0056] In the wire harness routing structure 1 described above, the vehicle body B includes a vehicle body frame Bb that forms the skeleton of the vehicle body B, and a second protruding support portion Bb2 that protrudes from the vehicle body frame Bb toward the passenger compartment and supports the first connecting portion 22 of the sub-link arm 21. The wire W is routed below the second protruding support portion Bb2 in the height direction Z. Here, when viewed from the direction in which an occupant gets in and out with the door body D fully open, a part of the second protruding support portion Bb2 that supports the first connecting portion 22 of the sub-link arm 21 is provided on the inside of the entrance / exit Ba. Even when a part of the second protruding support portion Bb2 is provided on the inside of the entrance / exit Ba, the wire harness routing structure 1 can prevent the wire W routed along the sub-link arm 21 from obstructing entry and exit.

[0057] In the wire harness routing structure 1 described above, the sub-link arm 21 includes a groove portion 211c formed in a groove shape along the extending direction X of the sub-link arm 21, which is capable of accommodating the routing wire W. The routing wire W is routed with the routing wire W housed in the groove portion 211c. With this configuration, the wire harness routing structure 1 can secure routing space for routing the routing wire W between the vehicle body B and the door body D through the groove portion 211c of the sub-link arm 21. Furthermore, by routing the routing wire W routed between the vehicle body B and the door body D while housing it in the groove portion 211c of the sub-link arm 21, the wire harness routing structure 1 can suppress the exposure of the routing wire W to the outside, thereby reducing the risk of snagging the routing wire W compared to the conventional case where the routing wire W is exposed to the outside. In addition, the wire harness routing structure 1 can hide the routing wire W from the outside, improving its appearance. In this way, the wire harness routing structure 1 allows the wires W to be properly routed between the vehicle body B and the door body D.

[0058] The link-type sliding door SD comprises at least a door body D attached to the vehicle body B, a sub-link arm 21, and a cable W. The cable W is routed below the first connecting portion 22 connected to the sub-link arm 21 in the height direction Z when the door body D slides and is fully open. This configuration enables the link-type sliding door SD to realize a sliding door in which the cable W does not obstruct entry or exit when an occupant opens the door body D to get in or out.

[0059] The wire harness WH includes a wiring cable W that connects the vehicle body side connector BC and the door side connector DC. The wiring cable W is routed below the first connecting portion 22 connected to the sub-link arm 21 in the height direction Z when the door body D slides open completely. This configuration prevents the wiring cable W from obstructing entry and exit when an occupant opens the door body D, thus allowing the wiring cable W to be routed properly.

[0060] [Variation] In the example described, the cable W is routed below the second protruding support portion Bb2 of the vehicle body B in the height direction Z. However, the example is not limited to this, and for example, the cable W may be routed above the second protruding support portion Bb2 in the height direction Z.

[0061] Although the wire harness routing structure 1 and the link-type sliding door SD have been described as having two link mechanisms, a main link mechanism 10 and a sub-link mechanism 20, they are not limited to this, and may also have only one link mechanism (for example, a configuration that does not have a main link mechanism 10 but has a sub-link mechanism 20).

[0062] Although the example described shows the door body D being assembled to the vehicle body B as a rear passenger door, it is not limited to this, and may be assembled to the vehicle body B as other doors, such as a driver's side door or a passenger side door.

[0063] The wire harness routing structure 1 described here is an example in which the main link arm 11 and the sub-link arm 21 rotate relative to the vehicle body B and the door body D, respectively, as the main link arm 11 is rotated by a drive unit. However, the structure is not limited to this example. For instance, without a drive unit, the main link arm 11 and the sub-link arm 21 may rotate relative to the vehicle body B and the door body D, respectively, by the sliding operation of the door body D by the vehicle occupant.

[0064] Although an example has been described in which the groove portion 211c is formed in a rectangular cross-section, it is not limited to this, and for example, its cross-section may be formed in a U-shape, C-shape, H-shape, etc., with a curved bottom surface.

[0065] In the example described, the groove 211c is located on one side of the width direction Y (opposite side from the door body D) and the other side of the width direction Y of the bottom surface 211a (towards the door body D) is open. However, the example is not limited to this, and for example, the bottom surface 211a may be located on one side of the height direction Z (e.g., the upper side) and the other side of the height direction Z of the bottom surface 211a (e.g., the lower side) is open. In this case, a pair of side walls 211b are provided on both sides of the width direction Y of the bottom surface 211a.

[0066] In the example described, the main link arm 11 rotates using the pivot shaft portions 121 and 131 at both ends as pivot axes within a single arm member. However, the invention is not limited to this configuration. For example, the arm may be divided in the extending direction X and each divided arm may be connected by a link.

[0067] In the example described, the sub-link arm 21 rotates on the pivot shafts 221 and 231 at both ends of a single arm member, but it is not limited to this. For example, it may be configured such that the arm is divided in the extending 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 is continuous across each divided arm. The cable W is then routed through these continuous grooves across each divided arm.

[0068] The main link mechanism 10 has been described in an example where the cable W is not routed along the main link arm 11, but it is not limited to this example. For example, if the cable W is routed along the sub-link arm 21, a separate cable may also be routed along the main link arm 11.

[0069] Although an example of the main link arm 11 being formed in a columnar shape has been described, it is not limited to this, and for example, it may be formed in a shape having a groove, and the cable W may be housed in the groove. Alternatively, the main link arm 11 may be formed in a cylindrical shape, and the cable W may be inserted through the inside for routing.

[0070] Although an example has been described in which the sub-link arm 21 is configured to include a groove 211c, it is not limited to this, and may not include a groove 211c. In this case, the sub-link arm 21 may be formed in the shape of a cylinder, a rod (columnar), etc. If it is formed in the shape of a cylinder, the cable W is inserted through the inside and routed through it, and if it is formed in the shape of a rod (columnar), the cable W is routed alongside the arm. [Explanation of Symbols]

[0071] 1. Wire harness routing structure 21 Sub-link arm (link arm) 211c Groove 22. First coupling section (car body side coupling section) 23. Second connecting section (door-side connecting section) B Body Ba entrance / exit Bb vehicle frame Bb2 2nd protruding support part (protruding support part) BC Vehicle-side connector (connection target on the vehicle side) D Door Body DC door-side connector (connection target on the door body side) SD Link-Type Sliding Door W Cable Line WH Wire Harness Z: Height direction (vertical direction)

Claims

1. a link arm having one end rotatably connected to the vehicle body via a vehicle body-side connecting portion and the other end rotatably connected to the door body via a door-side connecting portion, the link arm rotating relatively to the vehicle body and the door body, and supporting the door body slidably relative to the vehicle body; a wiring line that is routed along the 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 to pass vertically below the vehicle body side connecting portion when the door body is slid and fully open.

2. 2. The wire harness routing structure according to claim 1, wherein the wiring line passes vertically below the vehicle body side connecting portion when the door body is slid and fully closed.

3. 3. The wire harness routing structure according to claim 1, wherein the vehicle body side connecting portion is provided inside an entrance / exit opening that is opened and closed by the door body when viewed from the direction in which occupants get in and out with the door body fully open.

4. the vehicle body includes a vehicle body frame that forms a skeleton of the vehicle body, and a protruding support portion that is provided protruding from the vehicle body frame toward a vehicle compartment and supports the vehicle body-side coupling portion, 4. The wire harness routing structure according to claim 1, wherein the routing wire passes below the protruding support portion in the vertical direction.

5. the link arm includes a groove portion formed in a groove shape along an extension direction of the link arm and capable of accommodating the wiring wire; 5. The wire harness routing structure according to claim 1, wherein the routing wire is routed in a state where the routing wire is housed in the groove portion.

6. a door body that is attached to the vehicle body; a link arm having one end rotatably connected to the vehicle body via a vehicle body-side connecting portion and the other end rotatably connected to the door body via a door-side connecting portion, the link arm rotating relatively to the vehicle body and the door body, and supporting the door body slidably relative to the vehicle body; a wiring line that is routed along the link arm and connects a connection target on the vehicle body side to a connection target on the door main body side; A link-type sliding door characterized in that the wiring line is routed vertically below the vehicle body side connecting portion when the door body is slid and fully open.

7. one end of the door casing is rotatably connected to the vehicle body via a vehicle body-side connecting portion, and the other end of the door casing is rotatably connected to the door body via a door-side connecting portion, and the door casing is routed along a link arm that supports the door body so that the door body can slide relative to the vehicle body while rotating relative to the vehicle body and the door body, and the routed wire connects a connection target on the vehicle body side to a connection target on the door body side; The wiring harness is characterized in that the wiring wire is routed vertically below the vehicle body side connecting portion when the door body is slid and fully open.

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