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

Abstract

This invention provides a wiring harness layout structure, a linkage sliding door, and a wiring harness capable of appropriate wiring arrangement. In the wiring harness layout structure (1), the main linkage arm (11) is rotatable relative to the vehicle body (B) and the door body (D), and supports the door body (D) so that it can slide relative to the vehicle body (B). The secondary linkage arm (21) is located below the main linkage arm (11) in the height direction, rotates relative to the vehicle body (B) and the door body (D), and together with the main linkage arm (11), supports the door body (D) so that it can slide relative to the vehicle body (B). The wiring (W) is arranged to be laid along the secondary linkage arm (21) to connect the vehicle body side connector (BC) and the door side connector (DC). Moreover, the wiring (W) is laid through the main linkage arm (11) side of the first connection portion provided in the secondary linkage mechanism (20).

Description

Technical Field

[0001] This invention relates to a wiring harness layout structure, a linkage-type sliding door, and a wiring harness. Background Technology

[0002] Previously, for example, Patent Document 1 described a layout structure for a sliding door. This layout structure for a sliding door includes: a sliding door having a sliding section guided by a guide section provided on the vehicle body side; a flexible conductor that electrically connects the sliding door to the vehicle body side and passes through a trajectory space of the sliding section; and a plate-shaped elastic body disposed along the conductor.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-134626 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, as a sliding door structure, in the case of a linkage-type sliding door that does not have a sliding part but has two linkage arms that support the sliding door to the vehicle body in a way that allows it to slide, it is desirable, for example, to lay wiring between the vehicle body and the sliding door while the sliding door is stably supported by each linkage arm.

[0008] Therefore, the present invention was made in view of the above circumstances, and its object is to provide a wiring harness layout structure, a linkage sliding door, and a wiring harness that can be appropriately laid out.

[0009] Technical means for solving problems

[0010] To solve the above problems and achieve the objective, the wiring harness layout structure of the present invention is characterized by comprising: a first linkage arm, one end of which is rotatably connected to a vehicle body via a first vehicle body side connection portion, and the other end of which is rotatably connected to a door body via a first door side connection portion; the first linkage arm is rotatable relative to the vehicle body and the door body respectively, and supports the door body so that it can slide relative to the vehicle body; and a second linkage arm, which is disposed below the first linkage arm in the vertical direction, one end of which... The second linkage arm is rotatably connected to the vehicle body via a second vehicle body side connection, and the other end of the second linkage arm is rotatably connected to the door body via a second door side connection. The second linkage arm is rotatable relative to the vehicle body and the door body, respectively, and together with the first linkage arm, supports the door body so that it can slide relative to the vehicle body; and wiring is provided, which is arranged to be laid along the second linkage arm to connect the connection object on the vehicle body side to the connection object on the door body side, and the wiring is laid through the first linkage arm side of the second vehicle body side connection.

[0011] The linkage-type sliding door of the present invention is characterized by comprising: a door body assembled to a vehicle body; a first linkage arm, one end of which is rotatably connected to the vehicle body via a first vehicle body side connection, and the other end of which is rotatably connected to the door body via a first door side connection, the first linkage arm being rotatable relative to the vehicle body and the door body respectively, and supporting the door body to slide relative to the vehicle body; and a second linkage arm disposed below the first linkage arm in the vertical direction, wherein one end of the second linkage arm... The first link arm is rotatably connected to the vehicle body via a second vehicle body side connection, and the other end of the second link arm is rotatably connected to the door body via a second door side connection. The second link arm is rotatable relative to the vehicle body and the door body, and together with the first link arm, supports the door body so that it can slide relative to the vehicle body. The second link arm is also rotatable relative to the vehicle body. The wiring is arranged along the second link arm to connect the connection object on the vehicle body side to the connection object on the door body side. The wiring is arranged through the first link arm side of the second vehicle body side connection.

[0012] The wiring harness of the present invention is characterized by having wiring arranged along a second linkage arm to connect a connection object on the vehicle body side to a connection object on the door body side. The second linkage arm is located below the vertical direction of the first linkage arm. One end of the first linkage arm is rotatably connected to the vehicle body via a first vehicle body side connection portion, and the other end is rotatably connected to the door body via a first door side connection portion. The first linkage arm is rotatable relative to both the vehicle body and the door body, and supports the door body for sliding relative to the vehicle body. Similarly, one end of the second linkage arm is rotatably connected to the vehicle body via a second vehicle body side connection portion, and the other end is rotatably connected to the door body via a second door side connection portion. The second linkage arm is rotatable relative to both the vehicle body and the door body, and together with the first linkage arm, supports the door body for sliding relative to the vehicle body. The wiring is arranged along the first linkage arm side of the second vehicle body side connection portion.

[0013] Invention Effects

[0014] In the wiring harness layout structure, linkage sliding door, and wiring harness involved in this invention, the wiring is laid through the first linkage arm side of the second vehicle body side connection portion. Therefore, compared to the case where the wiring is laid through the side of the second vehicle body side connection portion opposite to the first linkage arm side, the vertical distance between the first vehicle body side connection portion and the second vehicle body side connection portion can be increased. As a result, the door body can be stably supported, and the wiring can be properly laid between the vehicle body and the door body. Attached Figure Description

[0015] Figure 1 This is a perspective view showing a structural example of the wire harness layout structure according to the embodiment.

[0016] Figure 2 This is an exploded perspective view showing a structural example of the wire harness layout structure according to the embodiment.

[0017] Figure 3 This is a perspective view showing a structural example of the main linkage mechanism involved in the embodiment.

[0018] Figure 4 This is a perspective view showing a structural example of the secondary linkage mechanism involved in the embodiment.

[0019] Figure 5 This is a front view illustrating a structural example of the wire harness layout structure of the embodiment.

[0020] Symbol Explanation

[0021] 1. Wiring harness layout structure

[0022] 11. Main Link Arm (First Link Arm)

[0023] 12 First connecting part (first car body side connecting part)

[0024] 13 Second connecting part (first door side connecting part)

[0025] 21. Second linkage arm (second linkage arm)

[0026] 211c groove

[0027] 22 First connecting part (second car body side connecting part)

[0028] 23 Second connecting part (second door side connecting part)

[0029] B vehicle body

[0030] Bb vehicle body frame

[0031] Bb1 First protruding support portion

[0032] Bb2 Second protruding support portion

[0033] BC Body-side Connector (Connection object on the body side)

[0034] D door body

[0035] DC door-side connector (connection object on the door body side)

[0036] SD Linkage Sliding Door

[0037] W wiring

[0038] WH wiring harness

[0039] Z (height direction, vertical direction) Detailed Implementation

[0040] Referring to the accompanying drawings, the embodiments (implementations) for carrying out the present invention will be described in detail. The present invention is not limited to the contents described in the following embodiments. Furthermore, the constituent elements described below include contents readily conceived by those skilled in the art and substantially the same contents. Moreover, the structures described below can be appropriately combined. Furthermore, various omissions, substitutions, or modifications to the structure can be made without departing from the spirit of the present invention.

[0041] [Implementation Method]

[0042] The wiring harness layout structure 1, the linkage sliding door SD, and the wiring harness WH of the embodiment will be described with reference to the accompanying drawings.

[0043] In the following description, the first direction among the intersecting first, second, and third directions will be 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, width direction Y, and height direction Z intersect each other, typically orthogonally. The extension direction X is, for example, the direction (length direction) along the extension of the main link arm 11 (described later). The width direction Y is, for example, the direction along the short side of the main link arm 11. The height direction Z is the direction along the vehicle height direction (vehicle height direction), and 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, which here is equivalent to the direction along the entire length of the vehicle body B. In other words, the sliding direction S of the door body D is the direction that intersects with the rotation axis of the main link arm 11 (rotation axis portions 121 and 131 described later), typically orthogonal to this rotation axis. Unless otherwise specified, the directions used in the following description refer to the directions in the assembled state of the parts.

[0044] The wiring harness layout structure 1 is applied to a vehicle, supporting the door body D so that it can slide relative to the vehicle body B, and electrically connecting devices, connectors, and other connection objects located on the vehicle body B side to the devices, connectors, and other connection objects located on the door body D side. In this example, a vehicle body-side connector BC, serving as a connection object on the vehicle body B side, is provided on the vehicle body B side, and a door-side connector DC, serving as a connection object on the door body D side, is provided on the door body D side. The vehicle body-side connector BC is located near the secondary linkage mechanism 20, which is described later than the main linkage mechanism 10. In this example, the vehicle body-side connector BC is located above the secondary linkage mechanism 20 in the height direction Z. In other words, the vehicle body-side connector BC is located on the main linkage mechanism 10 side of the secondary linkage mechanism 20. The door-side connector DC is located between the main linkage mechanism 10 and the secondary linkage mechanism 20 (approximately midway between the main linkage mechanism 10 and the secondary linkage mechanism 20 in the height direction Z in this example).

[0045] Here, in addition to the aforementioned body-side connector BC, the vehicle body B also includes a body frame Bb, a first protruding support Bb1, and a second protruding support Bb2. The body frame Bb forms the skeleton of the vehicle body B, supporting components such as the engine, transmission, suspension, and wheels. The first protruding support Bb1 is provided on the body frame Bb near the passenger / alighting opening Ba opened and closed by the door body D, and protrudes from the body frame Bb toward the passenger compartment side. The first protruding support Bb1 is formed into a frame shape, for example, by bending a metal plate, and is supported by holding the first connecting portion 12 of the main linkage mechanism 10 (described later) inside. Furthermore, the second protruding support Bb2 is arranged side by side with the first protruding support Bb1 along the height direction Z, located below the first protruding support Bb1 in the height direction Z, and protrudes from the body frame Bb toward the passenger compartment side. The second protruding support portion Bb2 is formed into a frame shape by bending a metal plate, for example, and is supported by holding the first connecting portion 22 of the secondary linkage mechanism 20 (described later) inside. A vehicle-side connector BC is provided on the upper side of the second protruding support portion Bb2 in the height direction Z.

[0046] like Figures 1 to 4 As shown, the wiring harness layout structure 1 includes a main linkage mechanism 10, a secondary linkage mechanism 20, and wiring W. Wiring W constitutes the wiring harness WH. In other words, it can also be said that the wiring harness WH includes wiring W. Furthermore, the door body D, the main linkage mechanism 10, the secondary linkage mechanism 20, and wiring W constitute the linkage-type sliding door SD. In other words, it can also be said that the linkage-type sliding door SD includes the door body D, the main linkage mechanism 10, the secondary linkage mechanism 20, and wiring W.

[0047] Here, the wiring harness arrangement structure 1 supports the door body D by means of a main linkage mechanism 10 and a secondary linkage mechanism 20, allowing the main linkage arm 11 and the secondary linkage arm 21 (described later) to rotate. This eliminates the need for conventional sliding guides, enabling the door body D to slide relative to the vehicle body B along the sliding direction S. The door body D is assembled to the vehicle body B, for example, as a rear seat door. By sliding relative to the vehicle body B from a fully closed position to a fully open position along the sliding direction S, the passenger boarding / alighting opening Ba is opened. Conversely, by sliding relative to the vehicle body B from a fully open position to a fully closed position along the sliding direction S, the passenger boarding / alighting opening Ba is closed. The wiring harness arrangement structure 1 will now be described in detail.

[0048] like Figure 1 , Figure 2 As shown, the main linkage mechanism 10, together with the secondary linkage mechanism 20, supports the door body D so that it can slide relative to the vehicle body B. The main linkage mechanism 10 is configured to include a main linkage arm 11, a first connecting part 12, and a second connecting part 13.

[0049] The main connecting arm 11 is a component that supports the door body D so that it can slide relative to the vehicle body B. For example... Figure 3 As shown, the main connecting arm 11 is configured to include a first arm 111 and a second arm 112.

[0050] The first arm 111 is a long, narrow metal component extending along the extension direction X. For example, the first arm 111 is formed with a curved portion bending from the vehicle body B side towards the door body D side. However, the first arm 111 is not limited to this curved shape as long as it can support the door body D and allow it to slide relative to the vehicle body B. The first arm 111 is formed in a columnar shape, specifically a quadrangular prism in this example. By forming it in a columnar shape, the first arm 111 can more firmly support the door body D compared to, for example, a cylindrical shape.

[0051] The second arm 112 is configured the same as the first arm 111 described above. That is, the second arm 112 is a metal component that extends along the extension direction X and is formed into a long strip. The second arm 112 is, for example, formed with a curved portion that bends from the vehicle body B side towards the door body D side. However, the second arm 112 is not limited to such a curved shape as long as it can support the door body D and allow it to 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 into a columnar shape, and in this example, it is formed into a quadrangular prism shape. By forming the second arm 112 into a columnar shape, it can more firmly support the door body D compared to, for example, a cylindrical shape.

[0052] Next, the first connecting part 12 will be explained. For example... Figure 2 As shown, the first connecting part 12 connects one end of the main connecting rod arm 11 in the extension direction X to the first protruding support part Bb1 of the vehicle body B in a rotatable manner, and is configured to include a rotating shaft part 121 and a bearing part 122.

[0053] The rotating shaft portion 121 rotatably supports one end of the main connecting rod arm 11 in the X-direction. The rotating shaft portion 121 is rod-shaped, extends along the Z-direction, and is inserted into a hole (cylindrical hole) at one end of the main connecting rod arm 11 in the X-direction. Specifically, the rotating shaft portion 121 has holes in the main connecting rod arm 11 that are inserted into one end of the first arm 111 in the X-direction and one end of the second arm 112 in the X-direction. The rotating shaft portion 121 is provided with a stop (not shown) for maintaining a constant distance between the first arm 111 and the second arm 112 in the Z-direction. This stop prevents the first arm 111 and the second arm 112 from shifting positions in the Z-direction. The rotating shaft portion 121, extending along the Z-direction, supports one end of the first arm 111 and one end of the second arm 112 in a manner that allows rotation about the rotating shaft portion 121. Alternatively, the structure that prevents the first arm 111 and the second arm 112 from shifting positions can be a structure other than the stop mentioned above.

[0054] The bearing section 122 connects the rotating shaft section 121 to the vehicle body B. The bearing section 122 is configured to include a fixed plate 122a and a pair of support plates 122b.

[0055] 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 the shape of a flat plate, extends along the height direction Z, and is fixed to the inner side of the first protruding support portion Bb1 of the vehicle body B, which is formed in the shape of a frame.

[0056] A pair of support plates 122b support a rotating shaft 121. The pair of support plates 122b are each formed as a flat plate, erected from both ends of the fixed plate 122a in the height direction Z and arranged at fixed intervals along the height direction Z. A rotating shaft 121 is disposed between one support plate 122b and the other support plate 122b. Each pair of support plates 122b has a hole through which the rotating shaft 121 is inserted; one end of the rotating shaft 121 is inserted into the hole of one support plate 122b, and the other end is inserted into the hole of the other support plate 122b. Anti-detachment portions are provided at both ends of the rotating shaft 121 inserted into the pair of support plates 122b. With the bearing portion 122 configured as described above supporting both ends of the rotating shaft portion 121 that is inserted into the first arm 111 and the second arm 112 using a pair of support plates 122b, the fixing plate 122a is fixed to the first protruding support portion Bb1 of the vehicle body B.

[0057] Next, the second connecting part 13 will be explained. For example... Figure 3As shown, the second connecting part 13 connects the other end of the main connecting rod arm 11 in the extension direction X to the door body D in a rotatable manner, and is configured the same as the first connecting part 12. That is, the second connecting part 13 is configured to include a rotating shaft part 131 and a bearing part 132.

[0058] The rotating shaft portion 131 rotatably supports the other end of the main connecting rod arm 11 in the extension direction X. The rotating shaft portion 131 is rod-shaped, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at the other end of the main connecting rod arm 11 in the extension direction X. Specifically, the rotating shaft portion 131 is inserted into holes at the other ends of the first arm 111 and the second arm 112 in the extension direction X of the main connecting rod arm 11. The rotating shaft portion 131 is provided with a stop (not shown) for maintaining a constant distance between the first arm 111 and the second arm 112 in the height direction Z. This stop prevents the first arm 111 and the second arm 112 from shifting positions in the height direction Z. The rotating shaft portion 131, extending along the height direction Z, supports the other ends of the first arm 111 and the second arm 112 in a manner that allows rotation about the rotating shaft portion 131. Alternatively, the structure that prevents the first arm 111 and the second arm 112 from shifting positions can be a structure other than the stop mentioned above.

[0059] The bearing portion 132 connects the rotating shaft portion 131 to the door body D. The bearing portion 132 is configured to include a fixing plate 132a and a pair of support plates 132b.

[0060] The fixing plate 132a is the part that is fixed to the door body D. The fixing plate 132a is formed in the shape of a flat plate, extends along the height direction Z, and is fixed to the door body D.

[0061] A pair of support plates 132b support a rotating shaft portion 131. The pair of support plates 132b are each formed as a flat plate, erected from both ends of the fixed plate 132a in the height direction Z and arranged along the width direction Y, at fixed intervals along the height direction Z. A rotating shaft portion 131 is disposed between one support plate 132b and the other support plate 132b. Each pair of support plates 132b has a hole through which the rotating shaft portion 131 is inserted; one end of the rotating shaft portion 131 is inserted into the hole of one support plate 132b, and the other end of the rotating shaft portion 131 is inserted into the hole of the other support plate 132b. Anti-detachment portions are provided at both ends of the rotating shaft portion 131 inserted into the pair of support plates 132b. With the bearing portion 132 configured as described above supporting the two ends of the rotating shaft portion 131 inserted into the first arm 111 and the second arm 112 using a pair of support plates 132b, the fixing plate 132a is fixed to the door body D.

[0062] The main linkage arm 11, configured as described above, rotates relative to the vehicle body B and the door body D respectively, and together with the secondary linkage mechanism 20, supports the door body D so that it can slide relative to the vehicle body B along the sliding direction S.

[0063] Next, the secondary linkage mechanism 20 will be described. The secondary linkage mechanism 20 is arranged side-by-side with the main linkage mechanism 10 along the height direction Z. In this example, it is located below the main linkage mechanism 10 in the height direction Z, and together with the main linkage mechanism 10, it supports the door body D so that it can slide relative to the vehicle body B. The secondary linkage mechanism 20 is configured to include a secondary linkage arm 21, a first connecting portion 22, and a second connecting portion 23.

[0064] The secondary connecting rod arm 21 is arranged side by side with the main connecting rod arm 11 along the height direction Z, such as... Figure 4 As shown, it is configured to include a first arm 211.

[0065] The first arm 211 is a metal component that extends along the extension direction X and is formed into a long strip. The first arm 211 may be formed in a straight line along the extension direction X, for example. However, the first arm 211 is not limited to such a straight line shape as long as it can support the door body D and allow it to slide relative to the vehicle body B. The first arm 211 includes a bottom portion 211a and a pair of sidewall portions 211b. The bottom portion 211a is located on one side in the width direction Y (the side opposite to the door body D) and is formed into a long strip and a flat plate along the extension direction X. The pair of sidewall portions 211b are each formed into a long strip and a flat plate along the extension direction X, and are erected from both ends of the bottom portion 211a in the height direction Z along the width direction Y, and are arranged at fixed intervals along the height direction Z. The other side (door body D side) of the bottom portion 211a of the first arm 211 in the width direction Y is open, and both ends in the extension direction X are closed. The first arm 211 accommodates the wiring W arranged between the vehicle body B side and the door body D side in a groove 211c formed by the bottom part 211a and a pair of side wall parts 211b (described later).

[0066] Here, one side wall portion 211b of a pair of side wall portions 211b (the side wall portion 211b on the main connecting arm 11 side) has a first cut portion 211d and a second cut portion 211e. The first cut portion 211d is provided on one side of the side wall portion 211b in the extending direction X, and is formed by rectangularly cutting off a portion of the side wall portion 211b. The first cut portion 211d is an opening for guiding one end of the wiring W housed in the groove portion 211c to the outside of the groove portion 211c. In the wiring W housed in the groove portion 211c, one end of the wiring W extends from the inside to the outside of the groove portion 211c via the first cut portion 211d and connects to the vehicle body side connector BC. In addition, the second cut portion 211e is provided on the other side of the side wall portion 211b in the extending direction X, and is formed by rectangularly cutting off a portion of the side wall portion 211b. The second cutout 211e is an opening for guiding the other end of the wiring W housed in the slot 211c to the outside of the slot 211c. In the wiring W housed in the slot 211c, the other end of the wiring W extends from the inside to the outside of the slot 211c via the second cutout 211e and connects to the door-side connector DC.

[0067] Next, the first connecting part 22 will be explained. For example... Figure 4 As shown, the first connecting part 22 connects one end of the extension direction X of the secondary connecting rod arm 21 to the vehicle body B in a rotatable manner, and is configured to include a rotating shaft part 221 and a bearing part 222.

[0068] The rotating shaft portion 221 rotatably supports one end of the secondary connecting rod arm 21 in the X-direction. The rotating shaft portion 221 is rod-shaped, extends along the Z-direction, and is inserted into a hole (cylindrical hole) at one end of the secondary connecting rod arm 21 in the X-direction. Specifically, the rotating shaft portion 221 is inserted into a hole in the secondary connecting rod arm 21 at one end of the first arm 211 in the X-direction. The rotating shaft portion 221, extending along the Z-direction, supports one end of the first arm 211 in a manner that allows it to rotate about the rotating shaft portion 221.

[0069] The bearing section 222 connects the rotating shaft section 221 to the vehicle body B. The bearing section 222 is configured to include a fixed plate 222a and a pair of support plates 222b.

[0070] 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 the shape of a flat plate, extends along the height direction Z, and is fixed to the inner side of the second protruding support portion Bb2 of the vehicle body B, which is formed in the shape of a frame.

[0071] A pair of support plates 222b support a rotating shaft portion 221. The pair of support plates 222b are each formed as a flat plate, erected from both ends of the fixed plate 222a in the height direction Z and arranged along the width direction Y, at fixed intervals along the height direction Z. A rotating shaft portion 221 is disposed between one support plate 222b and the other support plate 222b. Each pair of support plates 222b has a hole through which the rotating shaft portion 221 is inserted; one end of the rotating shaft portion 221 is inserted into the hole of one support plate 222b, and the other end is inserted into the hole of the other support plate 222b. Anti-detachment portions are provided at both ends of the rotating shaft portion 221 inserted into the pair of support plates 222b. With the bearing portion 222 configured as described above supporting both ends of the rotating shaft portion 221 inserted into the first arm 211 using a pair of support plates 222b, the fixing plate 222a is fixed to the second protruding support portion Bb2 of the vehicle body B.

[0072] Next, the second connecting part 23 will be explained. For example... Figure 4 As shown, the second connecting part 23 connects the other end of the extension direction X of the auxiliary connecting rod arm 21 to the door body D in a rotatable manner, and is configured the same as the first connecting part 22. That is, the second connecting part 23 is configured to include a rotating shaft part 231 and a bearing part 232.

[0073] The rotating shaft portion 231 rotatably supports the other end of the auxiliary link arm 21 in the X-direction. The rotating shaft portion 231 is rod-shaped, extends along the Z-direction, and is inserted into a hole (cylindrical hole) at the other end of the auxiliary link arm 21 in the X-direction. Specifically, the rotating shaft portion 231 is inserted into a hole in the auxiliary link arm 21 at the other end of the first arm 211 in the X-direction. The rotating shaft portion 231, extending along the Z-direction, supports the other end of the first arm 211 in a manner that allows it to rotate about the rotating shaft portion 231.

[0074] The bearing section 232 connects the rotating shaft section 231 to the door body D. The bearing section 232 is configured to include a fixing plate 232a and a pair of support plates 232b.

[0075] The fixing plate 232a is a part that is fixed to the door body D. The fixing plate 232a is formed in the shape of a flat plate, extends along the height direction Z, and is fixed to the door body D.

[0076] A pair of support plates 232b support a rotating shaft portion 231. The pair of support plates 232b are each formed as a flat plate, erected from both ends of the fixed plate 232a in the height direction Z and arranged along the width direction Y, at fixed intervals along the height direction Z. A rotating shaft portion 231 is disposed between one support plate 232b and the other support plate 232b. Each pair of support plates 232b has a hole through which the rotating shaft portion 231 is inserted; one end of the rotating shaft portion 231 is inserted into the hole of one support plate 232b, and the other end is inserted into the hole of the other support plate 232b. Anti-detachment portions are provided at both ends of the rotating shaft portion 231 inserted into the pair of support plates 232b. The bearing portion 232, configured as described above, supports both ends of the rotating shaft portion 231 inserted into the first arm 211 with a pair of support plates 232b, and fixes the fixing plate 232a to the door body D.

[0077] The secondary linkage arm 21, configured as described above, rotates relative to the vehicle body B and the door body D respectively, and together with the main linkage arm 11, supports the door body D so that it can slide relative to the vehicle body B.

[0078] The wiring harness layout structure 1 has a slot 211c provided in the secondary linkage arm 21 to serve as a structure for laying the wiring W in the linkage-type sliding door SD as described above.

[0079] The groove 211c is disposed in the first arm 211 of the secondary connecting rod arm 21, and is a region formed by the bottom part 211a and a pair of side wall parts 211b of the first arm 211. The groove 211c is formed in a groove shape along the extending direction X in the first arm 211, and the cross-section of the groove 211c is rectangular. The groove 211c has a receiving space capable of accommodating the wiring W, and can accommodate the wiring W laid along the first arm 211 between the vehicle body B side and the door body D side in the receiving space.

[0080] Next, the wiring W laid along the secondary linkage arm 21 will be described. The wiring W is configured to include a power line for supplying power, a communication line for communication, etc., with a connector WC1 at one end and a connector WC2 at the other end. The wiring W is laid along the secondary linkage arm 21, and in this example, the wiring W is laid in a state where it is received in the slot 211c of the secondary linkage arm 21. In the wiring W received in the slot 211c, one end of the wiring W extends from the inside to the outside (vehicle body side connector BC side) of the slot 211c via a first cut 211d, and the other end of the wiring W extends from the inside to the outside (door side connector DC side) of the slot 211c via a second cut 211e. Furthermore, as... Figure 4 , Figure 5As shown, the wiring W extending towards the vehicle-side connector BC is laid through the main link arm 11 side of the first connecting portion 22 connected to one end of the secondary link arm 21, and also through the main link arm 11 side of the second protruding support portion Bb2 supporting the first connecting portion 22. In other words, the wiring W is laid through the upper side of the first connecting portion 22 connected to one end of the secondary link arm 21 in the height direction Z, and also through the upper side of the second protruding support portion Bb2 supporting the first connecting portion 22 in the height direction Z. Furthermore, the wiring W extending towards the door-side connector DC is laid through the main link arm 11 side of the second connecting portion 23 connected to the other end of the secondary link arm 21. The connector WC1 of the wiring W laid 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-side connector BC provided on the vehicle-side B. The connector WC2 of the wiring W, which is laid through the main link arm 11 side of the second connecting part 23, is connected to the door side connector DC provided on the door body D side. In this way, the wiring W is connected to the vehicle body side connector BC while being laid through the main link arm 11 side of the first connecting part 22 and the second protruding support part Bb2.

[0081] The wiring harness layout structure 1, as described above, utilizes a drive unit (not shown) including a motor or the like installed in the vehicle body B to rotate the main linkage arm 11. This causes the main linkage arm 11 and the secondary linkage arm 21 to rotate relative to the vehicle body B and the door body D, respectively. This allows the door body D to slide relative to the vehicle body B from a fully closed position along the sliding direction S to a fully open position, or from a fully open position to a fully closed position along the sliding direction S. Specifically, the main linkage arm 11 rotates relative to the vehicle body B and the door body D, respectively, using the drive unit as its rotation axis, with the rotation shaft portion 121 of the first connecting portion 12 and the rotation shaft portion 131 of the second connecting portion 13 as its rotation axis. At this time, because the main linkage arm 11 is rotated by the drive unit, the secondary linkage arm 21 rotates relative to the vehicle body B and the door body D, respectively, with the rotation shaft portion 221 of the first connecting portion 22 and the rotation shaft portion 231 of the second connecting portion 23 as its rotation axis. The wiring W, which is laid along the secondary linkage arm 21 and accommodated in the slot 211c, also electrically connects the body-side connector BC and the door-side connector DC during the rotation of the secondary linkage arm 21.

[0082] As described above, the wiring harness layout structure 1 according to the embodiment includes a main connecting arm 11, a secondary connecting arm 21, and wiring W. One end of the main connecting arm 11 is rotatably connected to the vehicle body B via a first connecting part 12, and the other end of the main connecting arm 11 is rotatably connected to the door body D via a second connecting part 13. Both the main connecting arm 11 and the door body D rotate relative to each other, and the door body D is supported so that it can slide relative to the vehicle body B. The secondary connecting arm 21 is disposed below the main connecting arm 11 in the height direction Z. One end of the secondary connecting arm 21 is rotatably connected to the vehicle body B via a first connecting part 22, and the other end of the secondary connecting arm 21 is rotatably connected to the door body D via a second connecting part 23. Both the secondary connecting arm 21 and the door body D rotate relative to each other, and together with the main connecting arm 11, the door body D is supported so that it can slide relative to the vehicle body B. The wiring W is configured to run along the secondary linkage arm 21, connecting the body-side connector BC to the door-side connector DC. Furthermore, the wiring W is run through the main linkage arm 11 side of the first connection portion 22 provided in the secondary linkage mechanism 20.

[0083] Here, on the side of the first connection portion 22 of the secondary linkage mechanism 20 opposite to the side of the main linkage arm 11, a barrier P is structurally provided on the vehicle as an indispensable structure that cannot be moved to other locations. For example, when the door body D is used as a rear seat door, this barrier P serves as such on the side of the first connection portion 22 of the secondary linkage mechanism 20 opposite to the side of the main linkage arm 11. Figure 5The diagram shows a vehicle body wall forming a tire cover, etc. As a comparative example, in the wiring harness layout structure, for instance, if the wiring W is laid through the side of the first connecting portion 22 opposite to the side of the main link arm 11, a laying space is required between the first connecting portion 22 and the obstacle P. In this case, the first connecting portion 22 needs to be close to the side of the first connecting portion 12 of the main link mechanism 10. Therefore, in the comparative example wiring harness layout structure, 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 secondary link mechanism 20 becomes narrower, making it difficult to stably support the door body D. In contrast, the wiring harness layout structure 1 of this embodiment lays the wiring W through the main link arm 11 side of the first connection portion 22. Therefore, compared to the case where the wiring W is laid through the side of the first connection portion 22 opposite to the main link arm 11 side, as in the comparative example, the distance in the height direction Z between the first connection portion 12 of the main link mechanism 10 and the first connection portion 22 of the secondary link mechanism 20 can be widened. Thus, the door body D can be stably supported, and the door body D can be stably slid along the sliding direction S. In this way, the wiring harness layout structure 1 can properly lay the wiring 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 vehicle body wall forming a tire cover, is provided on the side of the first connection portion 22 of the secondary link mechanism 20 opposite to the main link arm 11 side. Furthermore, since it is difficult to ensure sufficient space between obstacles P, such as the vehicle body wall forming the tire cover, and the edge of the boarding / alighting opening Ba, the obstacle P cannot be moved when the wiring W is laid through the obstacle P side of the first connection portion 22 of the sub-linkage mechanism 20. Therefore, it is necessary to place the first connection portion 22 of the sub-linkage mechanism 20 close to the first connection portion 12 side of the main linkage mechanism 10. The wiring harness laying structure 1 of this embodiment is particularly effective in such a vehicle body B structure when the laying space is limited.

[0084] In the wiring harness layout structure 1, the vehicle body B is configured to include: a vehicle body frame B, which forms the skeleton of the vehicle body B; a first protruding support portion Bb1, which protrudes from the vehicle body frame Bb toward the passenger compartment and supports the first connecting portion 12; and a second protruding support portion Bb2, which protrudes from the vehicle body frame Bb toward the passenger compartment and supports the first connecting portion 22. The wiring harness W is laid through the main linkage arm 11 side of the second protruding support portion Bb2. According to this structure, the wiring harness layout structure 1 can increase the distance in the height direction Z between the first protruding support portion Bb1 and the second protruding support portion Bb2 of the vehicle body B, so that the main linkage mechanism 10 and the secondary linkage mechanism 20 can be assembled on the vehicle body B to stably support the door body D.

[0085] In the wiring harness layout structure 1, the secondary link arm 21 is configured to include a groove 211c. This groove 211c is formed in a groove shape along the extending direction X of the secondary link arm 21, capable of accommodating the wiring harness W. The wiring harness W is laid with the wiring harness W accommodated in the groove 211c. According to this structure, the wiring harness layout structure 1 can ensure the layout space for laying the wiring harness W between the vehicle body B and the door body D through the groove 211c of the secondary link arm 21. In addition, by accommodating and laying the wiring harness W between the vehicle body B and the door body D into the groove 211c of the secondary link arm 21, the wiring harness layout structure 1 can suppress the wiring harness W from being exposed to the outside, thus suppressing the possibility of the wiring harness W being hooked compared to the conventional case where the wiring harness W is exposed to the outside. Furthermore, the wiring harness layout structure 1 can cover the wiring harness W from the outside, resulting in good aesthetics. In this way, the wiring harness layout structure 1 can properly lay the wiring harness W between the vehicle body B and the door body D.

[0086] The linkage-type sliding door SD includes a door body D assembled to the vehicle body B, a main linkage arm 11, a secondary linkage arm 21, and wiring W, which is laid out through the main linkage arm 11 side of the first connecting part 22. According to this structure, the linkage-type sliding door SD can increase the distance in the height direction Z between the first connecting part 12 of the main linkage mechanism 10 and the first connecting part 22 of the secondary linkage mechanism 20, thus stably supporting the door body D and enabling the door body D to slide stably along the sliding direction S. As a result, a sliding door with wiring W appropriately laid out between the vehicle body B and the door body D can be realized while ensuring the stability of the door body D.

[0087] The wiring harness WH includes wiring W that connects the vehicle-side connector BC and the door-side connector DC. This wiring W is laid out along the main linkage arm 11 side of the first connection portion 22. According to this structure, the wiring harness WH can increase the distance in the height direction Z between the first connection portion 12 of the main linkage mechanism 10 and the first connection portion 22 of the secondary linkage mechanism 20. Therefore, the door body D can be stably supported by the main linkage mechanism 10 and the secondary linkage mechanism 20. As a result, the wiring W can be appropriately laid out between the vehicle body B and the door body D while ensuring the stability of the door body D.

[0088] [Variation Example]

[0089] An example of wiring W being laid through the main link arm 11 side of the second protruding support portion Bb2 of the vehicle body B has been described, but it is not limited to this. For example, wiring W may also be laid through the side of the second protruding support portion Bb2 opposite to the side of the main link arm 11.

[0090] The example of door body D being assembled to vehicle body B as a rear seat door has been described, but it is not limited to this. For example, it can also be assembled to vehicle body B as a driver's seat door, a passenger seat door, or other doors.

[0091] Regarding the wiring harness layout structure 1, an example was described in which the main linkage arm 11 and the auxiliary linkage arm 21 rotate relative to the vehicle body B and the door body D respectively by rotating the main linkage arm 11 using the drive unit. However, it is not limited to this. For example, it is also possible to not have a drive unit and to rotate the main linkage arm 11 and the auxiliary linkage arm 21 relative to the vehicle body B and the door body D respectively by the sliding operation of the passenger of the vehicle on the door body D.

[0092] An example of the groove 211c having a rectangular cross-section has been described, but it is not limited to this. For example, its cross-section can also be formed into a U-shape, C-shape, H-shape, etc. with a curved bottom surface.

[0093] An example has been described where the bottom portion 211a of the groove 211c is located on one side in the width direction Y (the side opposite to the door body D), and the other side in the width direction Y of the bottom portion 211a (the side of the door body D) is open. However, this is not a limitation. For example, the bottom portion 211a may also be located on one side in the height direction Z (e.g., the upper side), and the other side in the height direction Z of the bottom portion 211a may be open (e.g., the lower side). In this case, a pair of sidewall portions 211b are provided on both sides of the bottom portion 211a in the width direction Y.

[0094] An example of the main link arm 11 rotating in a single arm component with the rotation axes 121 and 131 at both ends as the rotation axes has been described, but it is not limited to this. For example, a structure in which the individual segmented arms are connected by a link based on the segmentation along the extension direction X can also be adopted.

[0095] An example has been described where the secondary linkage arm 21 rotates within a single arm component around its two end pivots 221 and 231, but this is not a limitation. For instance, a structure could be adopted where the arms are segmented along the extension direction X and connected by linkages. In this case, each segmented arm has a groove formed therein, and the grooves are continuous across each segmented arm. The wiring W only needs to be laid out across each segmented arm within the continuous grooves.

[0096] An example of wiring W not being laid along the main link arm 11 in the main link mechanism 10 has been described, but it is not limited to this. For example, if wiring W is laid along the secondary link arm 21, wiring may be laid along the main link arm 11 in addition.

[0097] The example of the main connecting arm 11 being formed as a column has been described, but it is not limited to this. For example, it may also be formed into a shape with a groove to accommodate the wiring W. Alternatively, the main connecting arm 11 may also be formed as a cylinder, with the wiring W inserted through the inside for routing.

[0098] An example of a secondary link arm 21 including a groove 211c has been described, but it is not limited to this, and the groove 211c may not be included. In this case, the secondary link arm 21 may be formed in the form of a cylinder, a rod (column), etc. When it is formed in the form of a cylinder, the wiring W is inserted through the inside and laid out. When it is formed in the form of a rod (column), the wiring W is laid out side by side with the arm.

Claims

1. A wire harness layout structure, characterized in that, have: The first linkage arm has one end rotatably connected to the vehicle body via a first vehicle body side connection, and the other end rotatably connected to the door body via a first door side connection. The first linkage arm can rotate relative to the vehicle body and the door body respectively, and supports the door body so that it can slide relative to the vehicle body. The second linkage arm is disposed below the first linkage arm in the vertical direction. One end of the second linkage arm is rotatably connected to the vehicle body via a second vehicle body side connection, and the other end of the second linkage arm is rotatably connected to the door body via a second door side connection. The second linkage arm can rotate relative to the vehicle body and the door body respectively, and together with the first linkage arm, supports the door body so that it can slide relative to the vehicle body. as well as The wiring is configured to run along the second link arm, connecting the connection object on the vehicle body side to the connection object on the door body side. The second link arm includes a groove, which is formed in a groove shape along the extending direction of the second link arm and is capable of accommodating the wiring. The groove is surrounded by a bottom portion and a pair of sidewall portions. The bottom portion is located on one side of the width direction, which intersects the vertical direction and the extending direction, and is formed into an elongated and flat shape along the extending direction. The pair of sidewall portions are erected from both ends of the bottom portion in the vertical direction along the width direction, and are respectively formed into elongated and flat shapes along the extending direction. The pair of sidewall portions are opposite to the first link arm. On the sidewall portion near the first link arm, rectangular cutouts are formed at both ends in the extending direction. With the wiring accommodated in the groove, the wiring is laid through the cut-out portion and across the first link arm side of the second vehicle body side connection portion.

2. The wire harness layout structure according to claim 1, characterized in that, The vehicle body includes: a vehicle body frame forming the skeleton of the vehicle body; a first protruding support portion projecting from the vehicle body frame toward the passenger compartment side and supporting a first vehicle body side connecting portion; and a second protruding support portion projecting from the vehicle body frame toward the passenger compartment side and supporting a second vehicle body side connecting portion. The wiring is laid through the first link arm side of the second protruding support.

3. A linkage-type sliding door, characterized in that, have: The door body is assembled onto the vehicle body; The first linkage arm has one end rotatably connected to the vehicle body via a first vehicle body side connection, and the other end rotatably connected to the door body via a first door side connection. The first linkage arm can rotate relative to the vehicle body and the door body respectively, and supports the door body so that it can slide relative to the vehicle body. The second linkage arm is disposed below the first linkage arm in the vertical direction. One end of the second linkage arm is rotatably connected to the vehicle body via a second vehicle body side connection, and the other end of the second linkage arm is rotatably connected to the door body via a second door side connection. The second linkage arm can rotate relative to the vehicle body and the door body respectively, and together with the first linkage arm, supports the door body so that it can slide relative to the vehicle body. as well as The wiring is configured to run along the second link arm, connecting the connection object on the vehicle body side to the connection object on the door body side. The second link arm includes a groove, which is formed in a groove shape along the extending direction of the second link arm and is capable of accommodating the wiring. The groove is surrounded by a bottom portion and a pair of sidewall portions. The bottom portion is located on one side of the width direction, which intersects the vertical direction and the extending direction, and is formed into an elongated and flat shape along the extending direction. The pair of sidewall portions are erected from both ends of the bottom portion in the vertical direction along the width direction, and are respectively formed into elongated and flat shapes along the extending direction. The pair of sidewall portions are opposite to the first link arm. On the sidewall portion near the first link arm, a cutout portion is formed at each end in the extending direction in the form of a rectangular cutout. With the wiring accommodated in the slot portion, the wiring is laid through the first link arm side of the second vehicle body side connection portion of the cutout portion.

4. A wire harness, characterized in that, The system includes wiring, which is configured to run along the second link arm to connect the connection object on the vehicle body side to the connection object on the door body side. The second linkage arm is disposed below the vertical direction of the first linkage arm. One end of the first linkage arm is rotatably connected to the vehicle body via the first vehicle body side connection part, and the other end of the first linkage arm is rotatably connected to the door body via the first door side connection part. The first linkage arm can rotate relative to the vehicle body and the door body respectively, and supports the door body so that it can slide relative to the vehicle body. One end of the second linkage arm is rotatably connected to the vehicle body via a second vehicle body side connection, and the other end of the second linkage arm is rotatably connected to the door body via a second door side connection. The second linkage arm can rotate relative to both the vehicle body and the door body, and together with the first linkage arm, supports the door body so that it can slide relative to the vehicle body. The second link arm includes a groove, which is formed in a groove shape along the extending direction of the second link arm and is capable of accommodating the wiring. The groove is surrounded by a bottom portion and a pair of sidewall portions. The bottom portion is located on one side of the width direction, which intersects the vertical direction and the extending direction, and is formed into an elongated and flat shape along the extending direction. The pair of sidewall portions are erected from both ends of the bottom portion in the vertical direction along the width direction, and are respectively formed into elongated and flat shapes along the extending direction. The pair of sidewall portions are opposite to the first link arm. On the sidewall portion near the first link arm, rectangular cutouts are formed at both ends in the extending direction. With the wiring accommodated in the groove, the wiring is laid through the cut-out portion and across the first link arm side of the second vehicle body side connection portion.

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