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

Abstract

A wire harness arrangement structure, a link type sliding door, and a wire harness are provided. The wire harness arrangement structure (1) includes at least a sub link arm (21) and a wire (W). One end of the sub link arm (21) is rotatably connected to a vehicle body (B) via a first connection portion, and the other end is rotatably connected to a door main body (D) via a second connection portion. The sub link arm (21) is rotatable relative to the vehicle body (B) and the door main body (D), and supports the door main body (D) so as to be slidable relative to the vehicle body (B). The wire (W) is arranged along the sub link arm (21) and connects a vehicle body side connector (BC) and a door side connector (DC). Furthermore, in a fully open state in which the door main body (D) is slidably moved, the wire (W) is arranged below the height direction Z of the first connection portion to which the sub link arm (21) is connected.

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 portion guided by a guide portion provided on the vehicle body side; a flexible conductor that electrically connects the sliding door to the vehicle body side and traverses the track space through which the sliding portion passes; 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, if it is not a sliding door with a sliding part but a linkage-type sliding door with a linkage arm that supports the sliding door so that it can slide relative to the vehicle body, for example, it is necessary to lay wiring between the vehicle body and the sliding door. In this case, it is desirable that the wiring does not obstruct passengers from getting on and off when they open the sliding door.

[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 linkage 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, wherein the linkage arm rotates relative to the vehicle body and the door body respectively, and supports the door body so as to be able to slide relative to the vehicle body; and wiring, wherein the wiring is arranged along the linkage arm, connecting the connecting object on the vehicle body side to the connecting object on the door body side, and wherein, in the state where the door body is slidably moved and fully open, the wiring is arranged below the vertical direction of the vehicle body-side connecting portion.

[0011] The linkage-type sliding door of the present invention is characterized by comprising: a door body assembled to a vehicle body; a linkage 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, the linkage arm rotating relative to the vehicle body and the door body respectively, and supporting the door body so as to be able to slide relative to the vehicle body; and wiring, which is provided along the linkage arm to connect the connecting object on the vehicle body side to the connecting object on the door body side, and in the state where the door body is fully open in a sliding movement, the wiring is provided below the vertical direction of the vehicle body-side connecting portion.

[0012] The wiring harness of the present invention is characterized by having wiring arranged along a linkage arm and connecting a connection object on the vehicle body side to a connection object on the door body side. One end of the linkage arm is rotatably connected to the vehicle body via a vehicle body side connection portion, and the other end of the linkage arm is rotatably connected to the door body via a door side connection portion. The linkage arm rotates 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. In the state where the door body is fully open in the sliding movement, the wiring is arranged below the vertical direction of the 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 out on the lower side of the vertical direction of the vehicle body side connection when the door body slides and is fully closed. Therefore, when passengers open the door body to board and alight, the wiring can be prevented from obstructing boarding and alighting. As a result, the wiring can be laid out appropriately. 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 showing the door body in its fully open state according to the embodiment.

[0020] Figure 6 This is a front view showing the door body in a fully closed state according to the embodiment.

[0021] Symbol Explanation

[0022] 1. Wiring harness layout structure

[0023] 21 sets of linkage arms (linkage arms)

[0024] 211c slot

[0025] 22 First connecting part (side connecting part of the vehicle body)

[0026] 23 Second connecting part (door side connecting part)

[0027] B body

[0028] Ba boarding and alighting gate

[0029] Bb chassis frame

[0030] Bb2 Second Protruding Support (Protruding Support)

[0031] BC Body-side Connector (Connection object on the body side)

[0032] D-door main body

[0033] DC door-side connector (connection object on the door body side)

[0034] SD Linkage Sliding Door

[0035] W wiring

[0036] WH wiring harness

[0037] Z-axis (vertical direction) Detailed Implementation

[0038] 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.

[0039] [Implementation Method]

[0040] 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.

[0041] 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, along the extension direction (length direction) of the main link arm 11 (described later). The width direction Y is, for example, along the direction of the short side of the main link arm 11. The height direction Z is along the vehicle height direction (vehicle height direction) of the vehicle, and also along the vertical direction. The sliding direction S of the door body D is along the extension direction X of the main link arm 11 when the door body D is closed, which here corresponds 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 a 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.

[0042] 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 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. The body-side connector BC is located near the secondary linkage mechanism 20, which is described later, more so than the main linkage mechanism 10. In this example, it is located below the secondary linkage mechanism 20 in the height direction Z. In other words, the body-side connector BC is located on the side of the secondary linkage mechanism 20 opposite to the side of the main linkage mechanism 10. The door-side connector DC is located between the main linkage mechanism 10 and the secondary linkage mechanism 20 (in this example, approximately midway between the main linkage mechanism 10 and the secondary linkage mechanism 20 in the height direction Z).

[0043] Here, in addition to the aforementioned body-side connector BC, the vehicle body B also includes a body frame Bb, a first protruding support portion Bb1, and a second protruding support portion 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 portion Bb1 is located on the body frame Bb near the passenger / passenger opening Ba, which is opened and closed by the door body D, and protrudes from the body frame Bb toward the passenger compartment side. The first protruding support portion 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 portion Bb2 is arranged side by side with the first protruding support portion Bb1 along the height direction Z, located below the first protruding support portion 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 body side connector BC is provided on the lower side of the second protruding support portion Bb2 in the height direction Z.

[0044] 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.

[0045] Here, the wiring harness arrangement structure 1 supports the door body D using the main linkage mechanism 10 and the secondary linkage mechanism 20, and rotates the main linkage arm 11 and the secondary linkage arm 21 (described later), thereby allowing the door body D to slide relative to the vehicle body B along the sliding direction S without using a conventional sliding guide rail. 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.

[0046] 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.

[0047] 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.

[0048] The first arm 111 is a metal component that extends along the extension direction X and is formed into a long strip. The first arm 111 is, for example, formed with a curved portion that bends from the vehicle body B side towards the door body D side. However, the first arm 111 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 first arm 111 is formed in a columnar shape, and in this example, in a quadrangular prism shape. The first arm 111 is formed in a columnar shape, thereby providing more robust support for the door body D compared to, for example, a cylindrical shape.

[0049] The second arm 112 is configured the same as the first arm 111 described above. That is, the second arm 112 is a long strip-shaped metal component that extends along the extension direction X. The second arm 112 is, for example, shaped 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 in a columnar shape, and in this example, it is formed in a quadrangular prism shape. The second arm 112 is formed in a columnar shape, so that it can firmly support the door body D compared to, for example, a cylindrical shape.

[0050] 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.

[0051] The rotating shaft portion 121 supports one end of the main connecting rod arm 11 in the X-direction, allowing it to rotate. 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 is inserted into holes at one end of the first arm 111 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 fixed 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 position 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 aforementioned stop.

[0052] The bearing portion 122 connects the rotating shaft portion 121 to the vehicle body B. The bearing portion 122 is configured to include a fixed plate 122a and a pair of support plates 122b.

[0053] The fixing plate 122a 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.

[0054] 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 provided 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 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.

[0055] 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 in the same way 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.

[0056] The rotating shaft portion 131 supports the other end of the main connecting rod arm 11 in the X-direction of its extension direction in a rotatable manner. The rotating shaft portion 131 is rod-shaped, extends along the Z-direction of its height, and is inserted into a hole (cylindrical hole) at the other end of the main connecting rod arm 11 in the X-direction of its extension direction. Specifically, the rotating shaft portion 131 is inserted into holes at the other end of the first arm 111 and the second arm 112 in the X-direction of its extension direction. The rotating shaft portion 131 is provided with a stop (not shown) for maintaining a fixed distance between the first arm 111 and the second arm 112 in the Z-direction of its height. This stop prevents the first arm 111 and the second arm 112 from shifting position in the Z-direction of its height. The rotating shaft portion 131, extending along the Z-direction of its height, supports the other end of the first arm 111 and the other end of 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 aforementioned stop.

[0057] The bearing section 132 connects the rotating shaft section 131 to the door body D. The bearing section 132 is configured to include a fixing plate 132a and a pair of support plates 132b.

[0058] 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.

[0059] 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 provided 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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 of the bottom portion 211a in the width direction Y of the first arm 211 (the door body D side) is open, and both ends of the first arm 211 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).

[0064] Here, a second cutout 211e is formed on one side of a pair of sidewall portions 211b (the sidewall portion 211b on the side of the main connecting rod arm 11), and a first cutout 211d is formed on the other side of the sidewall portion 211b. The first cutout 211d is provided on one side of the sidewall portion 211b in the extending direction X, and is formed by cutting a portion of the sidewall portion 211b into a rectangular shape. The first cutout 211d is an opening for guiding one end of the wiring W accommodated in the groove 211c laterally to the outside of the groove 211c. In the wiring W accommodated in the groove 211c, one end of the wiring W extends from the inside to the outside of the groove 211c via the first cutout 211d and connects to the vehicle side connector BC. In addition, a second cutout 211e is provided on the other side of the sidewall portion 211b in the extending direction X, and is formed by cutting a portion of the sidewall portion 211b into a rectangular shape. The second cutout 211e is an opening for guiding the other end of the wiring W housed in the slot 211c laterally toward 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.

[0065] Next, the first connecting part 22 will be explained. For example... Figure 4 As shown, the first connecting part 22 rotatably connects one end of the extension direction X of the secondary linkage arm 21 to the vehicle body B. In the structure of the linkage-type sliding door SD, the first connecting part 22 is located on the passenger boarding and alighting path; for example, when a passenger boards or alights via the boarding / alighting opening Ba, the first connecting part 22 is located at a position where it may be stepped on by the passenger. For example, as... Figure 5 As shown, when viewed from the passenger boarding / alighting direction (width direction Y) with the door body D fully open, the first connecting part 22 is located inside the boarding / alighting opening Ba, which is opened and closed by the door body D. For example, when viewed from the passenger boarding / alighting direction (width direction Y) with the door body D fully open, the first connecting part 22 is located on the rear side of the boarding / alighting opening Ba in the sliding direction S (so that the door body D moves to the fully open position along the sliding direction S), and is located on the lower side of the boarding / alighting opening Ba in the height direction Z. Furthermore, when viewed from the passenger boarding / alighting direction (width direction Y) with the door body D fully open, the first connecting part 22 overlaps with the door body D, which has moved to the rear position in the fully open state. When viewed from the height direction Z with the door body D fully open, the secondary linkage arm 21 connected to the first connecting part 22 is provided across the boarding / alighting opening Ba. Thus, in the structure of the linkage-type sliding door SD, the first connecting part 22 is located at the boarding / alighting opening Ba at a position where passengers may step on it when getting on or off the vehicle. Figure 4 As shown, the first connecting part 22 is configured to include a rotating shaft part 221 and a bearing part 222.

[0066] The rotating shaft portion 221 supports one end of the secondary connecting rod arm 21 in the X-direction, allowing it to rotate. 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 at one end of the first arm 211 in the X-direction of the secondary connecting rod arm 21. 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.

[0067] 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.

[0068] The fixing plate 222a 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.

[0069] A pair of support plates 222b support a rotating shaft portion 221. Each support plate 222b is flat and is erected from both ends of the fixed plate 222a along the width direction Y, and is arranged at fixed intervals along the height direction Z. A rotating shaft portion 221 is provided between one support plate 222b and the other support plate 222b. Each support plate 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. In the bearing section 222 configured as described above, with a pair of support plates 222b supporting both ends of the rotating shaft section 221 inserted into the first arm 211, the fixing plate 222a is fixed to the second protruding support section Bb2 of the vehicle body B.

[0070] 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 link arm 21 to the door body D in a rotatable manner, and is configured in the same way 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.

[0071] The rotating shaft portion 231 supports the other end of the secondary connecting rod arm 21 in the extension direction X, allowing it to rotate. The rotating shaft portion 231 is rod-shaped, extends along the height direction Z, and is inserted into a hole (cylindrical hole) at the other end of the secondary connecting rod arm 21 in the extension direction X. Specifically, the rotating shaft portion 231 is inserted into a hole at the other end of the first arm 211 in the extension direction X of the secondary connecting rod arm 21. The rotating shaft portion 231, extending along the height direction Z, supports the other end of the first arm 211 in a manner that allows it to rotate about the rotating shaft portion 231.

[0072] 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.

[0073] The fixing plate 232a is the 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.

[0074] 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 at fixed intervals along the height direction Z. A rotating shaft portion 231 is provided 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. With the bearing portion 232 configured as described above supporting both ends of the rotating shaft portion 231 inserted into the first arm 211 using a pair of support plates 232b, the fixing plate 232a is fixed to the door body D.

[0075] 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.

[0076] The wiring harness layout structure 1 has a slot 211c provided in the secondary linkage arm 21, which serves as a structure for laying wiring W in the linkage-type sliding door SD as described above.

[0077] 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.

[0078] 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., and has 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, it is laid in a state where it is received in the slot 211c of the secondary linkage arm 21. Within the wiring W received in the slot 211c, one end of the wiring W extends from the inside to the outside (body-side connector BC side) of the slot 211c via a first cutout 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 cutout 211e. Furthermore, as... Figure 5 As shown, in the fully open state with the door body D sliding, the wiring W extending to the vehicle side connector BC is laid below the first connecting portion 22, which is connected to one end of the secondary linkage arm 21, in the height direction Z, and also below the second protruding support portion Bb2, which supports the first connecting portion 22, in the height direction Z. In other words, the wiring W is laid on the side of the first connecting portion 22, which is connected to one end of the secondary linkage arm 21, opposite to the side of the main linkage arm 11, and also on the side of the second protruding support portion Bb2, which supports the first connecting portion 22, opposite to the side of the main linkage arm 11. Furthermore, the wiring W extending to the door side connector DC is laid above the second connecting portion 23, which is connected to the other end of the secondary linkage arm 21, in the height direction Z. In other words, the wiring W extending to the door side connector DC is laid on the side of the main linkage arm 11, which is connected to the second connecting portion 23, which is connected to the other end of the secondary linkage arm 21. Connector WC1 of the wiring W, which is laid below the first connecting part 22 and the second protruding support part Bb2 in the height direction Z, is connected to the body side connector BC provided on the B side of the vehicle body. Connector WC2 of the wiring W, which is laid below the main link arm 11 side of the second connecting part 23, is connected to the door side connector DC provided on the D side of the door body. Thus, the wiring W is connected to the body side connector BC while being laid below the first connecting part 22 and the second protruding support part Bb2 in the height direction Z. Moreover, as Figure 6As shown, even when the door body D is fully closed due to sliding movement, the wiring W is laid under the height direction Z of the first connecting part 22, and also under the height direction Z of the second protruding support part Bb2 supporting the first connecting part 22. Furthermore, even when the door body D is in a partially open state between fully open and fully closed, the wiring W is laid under the height direction Z of the first connecting part 22, and also under the height direction Z of the second protruding support part Bb2 supporting the first connecting part 22. In other words, regardless of the door body D's state between fully open and fully closed, the wiring W is laid under the height direction Z of the first connecting part 22, and also under the height direction Z of the second protruding support part Bb2 supporting the first connecting part 22.

[0079] The wiring harness layout structure 1, constructed as described above, utilizes a drive unit (not shown) including a motor, installed on 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 rotation axis 121 of the first connecting part 12 and the rotation axis 131 of the second connecting part 13 as its rotation axes. At this time, because the main linkage arm 11 rotates using the drive unit, the secondary linkage arm 21 rotates relative to the vehicle body B and the door body D, respectively, using the rotation axis 221 of the first connecting part 22 and the rotation axis 231 of the second connecting part 23 as its rotation axes. The wiring W, which is laid along the secondary linkage arm 21 and housed 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.

[0080] As described above, the wiring harness layout structure 1 according to the embodiment includes at least a secondary linkage arm 21 and wiring W. One end of the secondary linkage arm 21 is rotatably connected to the vehicle body B via a first connecting portion 22, and the other end is rotatably connected to the door body D via a second connecting portion 23. It rotates relative to both 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 wiring W is laid along the secondary linkage arm 21, connecting the vehicle body side connector BC and the door side connector DC. Furthermore, when the door body D is slidably moved and fully open, the wiring W is laid below the first connecting portion 22 connected to the secondary linkage arm 21 in the height direction Z.

[0081] According to this structure, the wiring W of the wiring harness layout structure 1 is laid under the first connection portion 22 of the secondary linkage arm 21. Therefore, when a passenger opens the door body D to board or alight, the wiring W can be prevented from obstructing boarding or alighting, thus allowing the passenger to board or alight smoothly. That is, when a passenger opens the door body D to board or alight, the wiring harness layout structure 1 can prevent the wiring W laid along the secondary linkage arm 21 from being stepped on by the passenger. As a result, the wiring harness layout structure 1 can prevent damage to the wiring W and can prevent the reduction of the durability of the wiring W. In this way, the wiring harness layout structure 1 can properly lay out the wiring W.

[0082] In the above-described wiring harness layout structure 1, when the door body D is fully closed by sliding, the wiring harness W is laid under the first connecting part 22 in the height direction Z. According to this structure, the wiring harness layout structure 1 can prevent the feet of a passenger sitting in the seat from contacting the wiring harness W when the door body D is fully closed.

[0083] In the above-described wiring harness layout structure 1, when viewed from the passenger boarding / alighting direction with the door body D fully open, the first connection part 22 connected to the secondary linkage arm 21 is located inside the boarding / alighting opening Ba, which is opened and closed by the door body D. Even when the first connection part 22 connected to the secondary linkage arm 21 is located on the boarding / alighting path, the wiring harness layout structure 1 can prevent the wiring W laid along the secondary linkage arm 21 from being stepped on by passengers, allowing passengers to board and alight smoothly through the boarding / alighting opening Ba.

[0084] In the above-described wiring harness layout structure 1, the vehicle body B includes: a vehicle frame Bb, forming the skeleton of the vehicle body B; and a second protruding support portion Bb2, which protrudes from the vehicle frame Bb toward the passenger compartment and supports the first connecting portion 22 of the secondary linkage arm 21. The wiring W is laid below the second protruding support portion Bb2 in the height direction Z. Here, in the second protruding support portion Bb2 that supports the first connecting portion 22 of the secondary linkage arm 21, when viewed from the passenger boarding / alighting direction with the door body D fully open, a portion of the second protruding support portion Bb2 is located inside the boarding / alighting opening Ba. Thus, even when a portion of the second protruding support portion Bb2 is located inside the boarding / alighting opening Ba, the wiring harness layout structure 1 can prevent the wiring W laid along the secondary linkage arm 21 from obstructing boarding / alighting.

[0085] In the above-described wiring harness layout structure 1, the secondary connecting arm 21 includes a groove 211c. This groove 211c is formed in a groove shape along the extending direction X of the secondary connecting arm 21 and is capable of accommodating the wiring harness W. The wiring harness W is laid out 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 connecting arm 21. In addition, by accommodating and laying the wiring harness W between the vehicle body B and the door body D in the groove 211c of the secondary connecting 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 hide 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 at least a door body D, a secondary linkage arm 21, and a wiring harness W assembled to the vehicle body B. When the door body D is fully open through sliding movement, the wiring harness W is laid out below the first connection portion 22 connected to the secondary linkage arm 21 in the height direction Z. According to this structure, when a passenger opens the door body D and enters / exits, the linkage-type sliding door SD can achieve a sliding door that prevents the wiring harness W from obstructing entry and exit.

[0087] The wiring harness WH includes wiring W that connects the vehicle-side connector BC to the door-side connector DC. When the door body D is fully open and sliding, this wiring W is laid below the first connection portion 22 connected to the auxiliary linkage arm 21 in the height direction Z. According to this structure, when a passenger opens the door body D to board or alight, the wiring harness WH can prevent the wiring W from obstructing boarding or alighting, thus allowing for appropriate wiring W placement.

[0088] [Variation Example]

[0089] Although an example of wiring W being laid below the second protruding support portion Bb2 in the height direction Z of the vehicle body B has been described, it is not limited to this. For example, wiring W may also be laid above the second protruding support portion Bb2 in the height direction Z.

[0090] Examples of wiring harness layout structure 1 and linkage sliding door SD having two linkage mechanisms, namely main linkage mechanism 10 and secondary linkage mechanism 20, have been described, but it is not limited to this. It may also have one linkage mechanism (for example, a structure that does not have main linkage mechanism 10 but has secondary linkage mechanism 20).

[0091] 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.

[0092] Regarding the wiring harness layout structure 1, an example was described in which the main linkage arm 11 and the secondary linkage arm 21 rotate relative to the vehicle body B and the door body D respectively by rotating the main linkage arm 11 using a drive unit. However, it is not limited to this. For example, it is also possible to not have a drive unit, but to rotate the main linkage arm 11 and the secondary 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.

[0093] 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.

[0094] An example has been described in which the bottom portion 211a of the groove portion 211c is located on one side in the width direction Y (the side opposite to the door body D), and the other side of the bottom portion 211a in the width direction Y (the door body D side) 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 of the bottom portion 211a in the height direction Z (e.g., the lower side) is open. In this case, a pair of sidewall portions 211b are provided on both sides of the bottom portion 211a in the width direction Y.

[0095] An example of the main link arm 11 rotating in a single arm component with the rotating shafts 121 and 131 at both ends as the rotating shafts 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.

[0096] An example has been described where the secondary linkage arm 21 rotates within a single arm component around the rotating shafts 221 and 231 at both ends. However, this is not a limitation. For example, 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 throughout the segmented arms. The wiring W only needs to be laid in the continuous grooves throughout the segmented arms.

[0097] An example of wiring W not being laid along the main link arm 11 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 further laid along the main link arm 11.

[0098] 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, so that the wiring W is inserted through the inside for installation.

[0099] An example of a secondary connecting rod arm 21 including a groove 211c has been described, but it is not limited to this and may not include the groove 211c. In this case, the secondary connecting rod arm 21 may be formed as a cylinder, a rod (column), etc. When it is formed as a cylinder, the wiring W is inserted through the inside and laid out. When it is formed as a rod (column), the wiring W is arranged and laid out on the arm.

Claims

1. A wire harness layout structure, characterized in that, have: A linkage arm extends horizontally, with one end rotatably connected to the vehicle body via a vehicle side connection and the other end rotatably connected to the door body via a door side connection. The linkage arm rotates 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. as well as The wiring is configured to run along the link arm, connecting the connection object on the vehicle body side to the connection object on the door body side. The linkage arm has: The first cut is located on the lower side wall of the connecting arm extending in a horizontal direction, and is the first opening of the lower side wall of the connecting arm. as well as The second cut is located on the upper sidewall of the connecting arm extending horizontally, and is the second opening in the upper sidewall of the connecting arm. When the door body is slidably moved and fully open, the wiring is laid from the lower outer side of the vertical direction of the vehicle body side connection portion through the first cut portion to the connecting arm, and from the connecting arm through the second cut portion to the upper outer side of the vertical direction of the door side connection portion.

2. The wire harness layout structure according to claim 1, characterized in that, When the door body is slidably moved and fully closed, the wiring is laid out on the lower side of the vehicle body side connection in the vertical direction.

3. The wire harness layout structure according to claim 1 or 2, characterized in that, When viewed from the direction of passenger boarding and alighting with the door body fully open, the vehicle side connection is located inside the boarding and alighting opening that is opened and closed by the door body.

4. The wire harness layout structure according to claim 1 or 2, characterized in that, The vehicle body includes: a body frame that forms the skeleton of the vehicle body; and a protruding support portion that protrudes from the body frame toward the passenger compartment and supports the vehicle side connecting portion. The wiring is laid below the vertical direction of the protruding support.

5. The wire harness layout structure according to claim 3, characterized in that, The vehicle body includes: a body frame that forms the skeleton of the vehicle body; and a protruding support portion that protrudes from the body frame toward the passenger compartment and supports the vehicle side connecting portion. The wiring is laid below the vertical direction of the protruding support.

6. A linkage-type sliding door, characterized in that, have: The door body is assembled onto the vehicle body; A linkage arm extends horizontally, with one end rotatably connected to the vehicle body via a vehicle side connection and the other end rotatably connected to the door body via a door side connection. The linkage arm rotates 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. as well as The wiring is configured to run along the link arm, connecting the connection object on the vehicle body side to the connection object on the door body side. The linkage arm has: The first cut is located on the lower side wall of the connecting arm extending in a horizontal direction, and is the first opening of the lower side wall of the connecting arm. as well as The second cut is located on the upper sidewall of the connecting arm extending horizontally, and is the second opening in the upper sidewall of the connecting arm. When the door body is slidably moved and fully open, the wiring is laid from the lower outer side of the vertical direction of the vehicle body side connection portion through the first cut portion to the connecting arm, and from the connecting arm through the second cut portion to the upper outer side of the vertical direction of the door side connection portion.

7. A wire harness, characterized in that, The device includes wiring arranged along a linkage arm to connect a vehicle-side connector to a door-side connector. One end of the linkage arm is rotatably connected to the vehicle body via a vehicle-side connector, and the other end is rotatably connected to the door body via the door-side connector, a first cutout at a first opening in the lower side wall of the horizontally extending linkage arm, and a second cutout at a second opening in the upper side wall of the horizontally extending linkage arm. The linkage arm rotates relative to both the vehicle body and the door body, and supports the door body for sliding relative to the vehicle body. When the door body is slidably moved and fully open, the wiring is laid from the lower outer side of the vertical direction of the vehicle body side connection portion through the first cut portion to the connecting arm, and from the connecting arm through the second cut portion to the upper outer side of the vertical direction of the door side connection portion.

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