Harness routing structure for sliding seats

Abstract

To prevent excessive loads from acting on a harness, even when sliding a slide seat in a longitudinal direction and storing the slide seat in a space at a foot.SOLUTION: A harness arrangement structure 20 is provided with a harness regulation part 24 fixed to a rail 12 that moves accompanying a pivotal motion of a link arm 11 to regulate a harness route of a harness 21. The harness regulation part 24 regulates the harness route by being along a middle part of the harness 21 which is extended from a vehicle body-side holding part 22 toward a direction of getting close to the slide seat 200, then bent and extended along a longitudinal direction X to a rear side B, and then bent back to a front side F to lead to a seat-side holding part 23.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a harness wiring structure for supplying power to electrical components incorporated in a sliding seat. [Background technology]

[0002] Conventionally, there have been sliding seats that slide in the fore-and-aft direction of the vehicle body, and which can be stored in the foot space by lifting the rear of the seat and pivoting it forward while the seat back is reclined, thereby enabling a so-called dive-in (see Patent Document 1). Such sliding seats incorporate electrical components such as a seat belt reminder. Therefore, it is necessary to supply power to these electrical components from the vehicle body.

[0003] When the sliding seat slides forward or backward, the harness stretching between the vehicle body and the sliding seat deforms as the seat moves. Furthermore, when the sliding seat is stored in the footwell, the harness also deforms as the seat moves. This can cause localized bending of the harness (bending with a large curvature, i.e., a sharp, sharp bend), which can result in excessive load being applied to the harness. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-019344 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to provide a harness routing structure that can prevent excessive load from being applied to the harness even when the slide seat is slid forward and backward or stored in the foot space. [Means for solving the problem]

[0006] The present invention is a harness routing structure in which a rail extending in the fore-and-aft direction of the vehicle body is supported by a link arm, a sliding seat is placed on a slider that is movable along the rail, and power is supplied to the electrical components of the sliding seat, which can be stored in the foot space together with the rail and the slider by the pivoting movement of the link arm, the harness being stretched between the vehicle body and the sliding seat, a vehicle body side holding portion that is fixed to the vehicle body side and holds the base end portion of the harness, a seat side holding portion that is fixed to the sliding seat side and holds the tip end portion of the harness, and a harness regulating portion that is fixed to a member that moves with the pivoting movement of the link arm and regulates the harness path of the harness, and the harness regulating portion is bent from the vehicle body side holding portion toward the sliding seat, extended to one side along the fore-and-aft direction, and then bent back to the other side and connected to the seat side holding portion, thereby regulating the harness path.

[0007] The present invention also includes a harness restricting portion constituting the harness routing structure described above. That is, a harness restricting portion of the harness routing structure supplies power to electrical components of the sliding seat, which is configured such that a rail extending in the fore-and-aft direction of the vehicle body is supported by a link arm, a sliding seat is placed on a slider that is movable along the rail, and the sliding seat can be stored in a foot space together with the rail and the slider by pivoting of the link arm, and the harness restricting portion holds a base end portion of the harness stretched between the vehicle body and the sliding seat. Car It also includes a harness regulating portion that is bent from the body side holding portion toward the sliding seat, extended to one side along the front-to-rear direction, then bent back to the other side, and attached to the middle portion of the harness leading to the seat side holding portion that holds the tip portion of the harness, thereby regulating the harness path.

[0008] According to these inventions, even when the sliding seat is slid forward and backward or when the sliding seat is stored in the foot space, an excessive load can be prevented from acting on the harness. In more detail, the harness routing structure and harness restraining portion of the present invention are configured so that the harness restraining portion bends and extends to one side in the fore-and-aft direction after moving from the vehicle body-side retaining portion toward the sliding seat (or, when the sliding seat is deployed from the footwell, moves upward), then bends back to the other side, and contacts the intermediate portion of the harness leading to the seat-side retaining portion to regulate the harness path. Therefore, deformation (displacement) of the harness is kept small in the intermediate portion of the harness that is separated from both the vehicle body-side retaining portion and the seat-side retaining portion, preventing localized bending of the harness (bending with a large curvature, i.e., sharp and sudden bending). Therefore, excessive loads can be prevented from acting on the harness even when the sliding seat is slid in the fore-and-aft direction or stored in the footwell.

[0009] As an aspect of the present invention, the harness regulating portion may be provided with a first bending regulating portion that is arranged along the portion of the harness that is bent from the direction approaching the slide seat toward the one side and regulates the harness shape of that portion.

[0010] According to this invention, the harness is wound around the first bend restricting portion and bent along the first bend restricting portion, which prevents the portion of the harness that is bent from the direction approaching the sliding seat toward one side from having a radius smaller than the allowable bend radius, thereby preventing excessive load from acting on the harness.

[0011] In another aspect of the present invention, the first bending regulating portion may be an arcuate surface formed on the harness regulating portion, and the central axis of the arcuate surface may be arranged coaxially with the pivot center at the connecting portion of the link arm.

[0012] This invention prevents the harness from being pulled and tensioned when it follows the pivoting movement of the link arm and wraps around the arcuate surface that is the first bend restricting portion. Therefore, excessive loads can be prevented from acting on the harness. Furthermore, it prevents the harness from becoming significantly slack when it follows the pivoting movement of the link arm and unwinds from the arcuate surface that is the first bend restricting portion.

[0013] In another aspect of the present invention, the harness regulating portion may be provided with a second bending regulating portion that is in contact with the bent portion of the harness near the first bending regulating portion when the slide seat is stored in the foot space and regulates the bending shape of that portion.

[0014] According to this invention, when the sliding seat is stored in the foot space, the harness is wrapped around the second bend restricting portion and bent along the second bend restricting portion, thereby preventing the bent portion of the harness near the first bend restricting portion from having a radius smaller than the allowable bend radius, thereby preventing excessive load from acting on the harness.

[0015] In another aspect of the present invention, the second bending regulating portion may be an arcuate surface formed on the harness regulating portion, and the central axis of the arcuate surface may be arranged coaxially with the pivot center at the connecting portion of the link arm.

[0016] This invention prevents the harness from being pulled and tensioned when it is wound around the arcuate surface of the second bend restricting portion in response to the pivoting movement of the link arm, thereby preventing excessive load from being applied to the harness. Furthermore, it prevents the harness from becoming significantly loose when it is unwound from the arcuate surface of the second bend restricting portion in response to the pivoting movement of the link arm.

[0017] In another aspect of the present invention, the vehicle body side holding portion may be provided with a third bending control portion that is arranged along the bent portion near the base end portion of the harness when the slide seat is stored in the foot space or deployed from the foot space, and controls the bending shape of that portion.

[0018] According to this invention, when the sliding seat is stored in the footwell or deployed from the footwell, the harness is wound around the third bend restricting portion and bent along the third bend restricting portion, thereby preventing the bent portion of the harness near the base end from having a radius smaller than the allowable bend radius, thereby preventing excessive load from being applied to the harness.

[0019] In another aspect of the present invention, the third bending restriction portion may be an arcuate surface formed on the vehicle body side retaining portion, and the central axis of the arcuate surface may be arranged coaxially with the pivot center at the connecting portion of the link arm.

[0020] This invention prevents the harness from being pulled and tensioned when it follows the pivoting movement of the link arm and wraps around the arcuate surface that is the third bend restricting portion. Therefore, excessive load is prevented from being applied to the harness. Furthermore, it prevents the harness from becoming significantly slack when it follows the pivoting movement of the link arm and unwinds from the arcuate surface that is the third bend restricting portion.

[0021] In another aspect of the present invention, the seat side holding portion may be provided with a fourth bending restriction portion that is arranged along the portion of the harness that is bent back from the direction toward the one side to the direction toward the other side when the slide seat is slid to the one side, and restricts the bending shape of that portion.

[0022] According to this invention, when the sliding seat is slid to one side, the harness is wrapped around the fourth bend restricting portion and bent along the fourth bend restricting portion, thereby preventing the portion of the harness that is bent back from one side to the other side from having a radius smaller than the allowable bend radius, thereby preventing excessive load from being applied to the harness.

[0023] In another aspect of the present invention, the harness regulating portion may be provided with a fifth bending regulating portion that is fitted along the bent portion of the harness near the connection portion of the link arm when the rear portion of the sliding seat is pulled up, thereby regulating the harness shape at that portion.

[0024] According to this invention, when the rear portion of the sliding seat is raised, the harness is wrapped around the fifth bend restriction portion and bent along the fifth bend restriction portion, which prevents the bent portion of the harness near the connection portion of the link arm from having a radius smaller than the allowable bend radius, thereby preventing excessive load from acting on the harness.

[0025] As a further aspect of the present invention, the harness restricting portion may be provided with an extension restricting portion that restricts the harness path of at least a portion of the harness that extends in a direction toward the one side. This invention makes it possible to support the intermediate portion of the harness that is separated from both the vehicle body-side holding portion and the seat-side holding portion, thereby preventing the intermediate portion of the harness from sagging due to gravity and preventing the sagging harness from interfering with surrounding components.

[0026] In another aspect of the present invention, the extension restricting portion may be configured by a pair of contact surfaces arranged to sandwich the harness. This invention can suppress twisting in the middle of the harness that is separated from both the vehicle body-side holding portion and the seat-side holding portion, thereby preventing the harness from deforming into an unintended shape and preventing the harness that has deformed into an unintended shape from interfering with surrounding components.

[0027] In another aspect of the present invention, a connector of the harness may be held by at least one of the vehicle body side holding portion and the seat side holding portion. According to this invention, when a connector is held by the vehicle body-side holding portion, it is possible to connect a harness routed in the vehicle body to a harness constituting the harness routing structure using the vehicle body-side holding portion. Also, when a connector is held by the seat-side holding portion, it is possible to connect a harness routed in the sliding seat to a harness constituting the harness routing structure using the seat-side holding portion. Furthermore, when connectors are held by the vehicle body-side holding portion and the seat-side holding portion, it is possible to change the specifications of the harness stretched between the vehicle body and the sliding seat. For example, it is possible to apply a flexible flat cable only to the harness stretched between the vehicle body and the sliding seat.

[0028] In another aspect of the present invention, the harness may be routed in a gap between a floor panel that constitutes the vehicle body and a seat cushion that constitutes the sliding seat. This invention allows the harness to be housed in the gap between the floor panel and the seat cushion, making it possible to hide the harness from the view of the person sitting in the sliding seat and those around, thereby improving the aesthetic appearance. [Effects of the Invention]

[0029] According to the present invention, even when the slide seat is slid forward and backward or when the slide seat is stored in the foot space, an excessive load can be prevented from acting on the harness. [Brief explanation of the drawings]

[0030] [Figure 1]FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] XX arrow cross-sectional view in FIG. 8. [Figure 11] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the slide seat is slid forward. [Figure 12] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the sliding seat is slid forward. [Figure 13] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the sliding seat is slid rearward. [Figure 14] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the sliding seat is slid rearward; [Figure 15] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the sliding seat is stored in the foot space. [Figure 16] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the sliding seat is stored in the foot space. [Figure 17] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the sliding seat is deployed from the foot space. [Figure 18] 10 is an explanatory diagram showing the operation of the harness routing structure when the sliding seat is deployed from the foot space. FIG. [Figure 19] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the rear portion of the sliding seat is lifted up; [Figure 20]FIG. 10 is a side view of a harness routing structure according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0031] An embodiment of the present invention will be described in detail with reference to the drawings. In this application, all drawings indicate directions of the vehicle body 100. Specifically, arrow F indicates the front side of the vehicle body, arrow B indicates the rear side of the vehicle body, arrow R indicates the right side of the vehicle body, and arrow L indicates the left side of the vehicle body. Arrow U indicates the upper side of the vehicle body, and arrow D indicates the lower side of the vehicle body. Additionally, in this application, the front-rear direction is defined as X, the left-right direction as Y, and the up-down direction as Z.

[0032] FIG. 1 is a perspective view of the seat support structure 10. FIG. 2 is a perspective view of the harness routing structure 20, and FIG. 3 is a side view of the harness routing structure 20. FIG. 4 is an enlarged perspective view of the vehicle body side holding portion 22, and FIG. 5 is an enlarged side view of the vehicle body side holding portion 22. FIG. 6 is an enlarged perspective view of the seat side holding portion 23, and FIG. 7 is an enlarged side view of the seat side holding portion 23. FIG. 8 is an enlarged perspective view of the harness restricting portion 24, and FIG. 9 is an enlarged side view of the harness restricting portion 24. FIG. 10 is a cross-sectional view taken along the arrow XX in FIG. 8. In FIG. 1, the sliding seat 200 is indicated by a two-dot chain line so that the seat support structure 10 and the harness routing structure 20 can be seen. In FIG. 2, the rail 12 to which the harness restricting portion 24 is fixed is indicated by a two-dot chain line.

[0033] 11 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 slides forward to the F side, and FIG. 12 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 slides forward to the F side. FIG. 13 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 slides rearward to the B side, and FIG. 14 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 slides rearward to the B side. Note that in FIGS. 11 and 13, the link arm 11 on the left side L and the like are omitted so that the harness routing structure 20 can be seen. In FIGS. 12 and 14, not only the link arm 11 on the left side L but also the link arm 11 on the right side R are omitted, and before and after the operation are indicated by two-dot chain lines and solid lines.

[0034] Furthermore, Fig. 15 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 is stored in the foot space A, and Fig. 16 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 is stored in the foot space A. Fig. 17 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 is deployed from the foot space A, and Fig. 18 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 is deployed from the foot space A. And Fig. 19 is an explanatory diagram showing the operation of the harness routing structure 20 when the seat rear portion of the sliding seat 200 is lifted up. Note that in Figs. 15 and 17, the rail 12 on the left side L and the like are omitted so that the harness routing structure 20 can be seen. In Figs. 16, 18, and 19, not only the rail 12 on the left side L but also the rail 12 on the right side R are omitted, and before and after the operation are indicated by two-dot chain lines and solid lines.

[0035] As shown in Fig. 1, a vehicle body 100 has a floor panel 101 and a kick-up 102. The vehicle body 100 is provided with a seat support structure 10 that supports a sliding seat 200. The seat support structure 10 according to this embodiment has a pair of link arms 11, a pair of rails 12, and a pair of sliders 13.

[0036] The link arm 11 has a connecting shaft 111 protruding in the left-right direction Y from a side surface portion on the base end side thereof. The link arm 11 is pivotally connected to the frame 10F by inserting the connecting shaft 111 into a through-hole 10h of the frame 10F fixed to the floor panel 101. Therefore, each link arm 11 can pivot within a range of approximately 90 degrees from the front side F to the upper side U with the connecting shaft 111 as the pivot center (see arrow P).

[0037] The link arm 11 also has a connecting shaft 112 that protrudes in the left-right direction Y from a side surface portion at the tip end thereof. The link arm 11 is pivotally connected to the frame 12F by inserting the connecting shaft 112 into a through-hole 12h of the frame 12F that is fixed to the rail 12. Therefore, it can be said that each link arm 11 can pivot within a range of approximately 90 degrees from the lower side D to the rear side B, with the connecting shaft 112 as the pivot center (see FIGS. 15 and 17).

[0038] The rails 12 extend along the fore-and-aft direction X of the vehicle body 100. The front end portions of the rails 12 are supported (pivotally supported) by the link arms 11, and the rear end portions are supported (non-pivotally supported) by the kick-ups 102. Therefore, by pulling up the rear end portions to release the latch, each rail 12 can move in accordance with the pivoting movement of the link arms 11 (see arrow P). A track groove 12r is formed on the top surface portion of each rail 12 along the fore-and-aft direction X.

[0039] The sliders 13 are supported in a state where they are fitted into the track grooves 12r of the rails 12. Therefore, the sliders 13 are movable along the rails 12 (see arrow S). Furthermore, each slider 13 is movable together with the rails 12 in accordance with the pivotal movement of the link arms 11 (see arrow P). A sliding seat 200 is placed on the upper end portion of each slider 13. Specifically, a seat cushion 201 that constitutes the sliding seat 200 is attached to the upper end portion. In other words, the sliders 13 and the seat cushion 201 are integrally formed.

[0040] With this configuration, the seat support structure 10 allows the slider 13 to move along the rail 12, thereby allowing the sliding seat 200 to slide in the fore-and-aft direction X of the vehicle body 100. Furthermore, the seat support structure 10 allows the sliding seat 200 to be stored in the foot space A together with the rail 12 and the slider 13, due to the link arm 11 pivoting. Note that the seat support structure 10 according to this embodiment is configured so that the sliding seat 200 can be stored in the foot space A by pulling up the rear of the seat with the seat back 202 reclined, thereby releasing a latch (not shown), and pivoting the seat toward the forward side F.

[0041] As shown in Fig. 1, the seat support structure 10 is provided with a harness routing structure 20 that supplies power to electrical components incorporated in a sliding seat 200. As shown in Fig. 2, the harness routing structure 20 has a harness 21, a vehicle body side holding portion 22, a seat side holding portion 23, and a harness regulating portion 24. These members will be described in detail below with reference to Figs. 2 to 10.

[0042] The harness 21 is laid between the vehicle body 100 and the sliding seat 200. The harness 21 is formed by overlapping a plurality of flexible flat cables. A connector 211 is attached to the base end of the harness 21, and a connector 212 is attached to the tip end of the harness 21, and the connector 212 is attached to the tip end of the harness 21, and the connector 212 is attached to the tip end of the harness 21.

[0043] The harness 21 moves from the vehicle body-side holder 22 toward the sliding seat 200, then bends, extends to the rear side B along the front-rear direction X, and then bends back to the front side F to reach the seat-side holder 23. The harness 21 is bent around a central axis C1 (described later) that extends along the left-right direction Y, and in a predetermined state, is bent back around a central axis C4 (described later) that also extends along the left-right direction Y. The flexible flat cable that constitutes the harness 21 is formed into a strip shape by sandwiching an electrically conductive plate between insulating sheets, and therefore has high flexibility in the thickness direction, allowing for such a harness path.

[0044] The vehicle body side holding portion 22 is fixed to the side of the vehicle body 100 and holds the base end portion of the harness 21. The vehicle body side holding portion 22 is mainly composed of a connector holder 220, and the connector 211 described above is housed in this connector holder 220. The connector 151 of the harness 150 routed in the vehicle body 100 is coupled (connected) to this connector 211. This electrically connects the harness 150 routed in the vehicle body 100 and the harness 21 constituting the harness routing structure 20. The harness 150 routed in the vehicle body 100 is a bundle of so-called insulated electric wires, which have a round cross section.

[0045] The connector holder 220 has a main body 221 and fixing plates 222 extending to both the left and right sides of the main body 221. The main body 221 has an opening at its rear end, and the connector 211 is housed in this opening. Therefore, the harness 21 is guided from the connector 211 through the inside of the main body 221 to the front side F, and extends toward the front side F from a slit-shaped opening 22h provided in a step portion 223 (described later). The connector holder 220 is fixed to the frame 10F on the floor panel 101 by bolts 22B inserted through the fixing plates 222. However, the present invention is not limited to the frame 10F.

[0046] Furthermore, the connector holder 220 has a step 223 formed at the lower end portion of the main body 221, and the aforementioned opening 22h (see FIG. 5) is formed in the front plate of this step 223. The lower plate 221d of the main body 221 extends from the upper edge of the opening 22h toward the front side F. The front plate 221f is disposed perpendicular to the lower plate 221d. A bend restricting portion 224 is provided at a corner between the lower plate 221d and the front plate 221f of the main body 231. The bend restricting portion 224 is an arcuate surface 224s centered on a central axis C3 that is parallel to the left-right direction Y, and the harness 21 is wound around the bend restricting portion 224 when in a predetermined state. The central axis C3 is disposed coaxially with the center line of the connecting shaft 111 of the link arm 11.

[0047] The seat-side holding portion 23 is fixed to the side of the sliding seat 200 and holds the tip portion of the harness 21. The seat-side holding portion 23 is mainly composed of a connector holder 230, and the connector 212 described above is housed in this connector holder 230. A connector 252 of the harness 250 routed in the sliding seat 200 is coupled (connected) to this connector 212. This electrically connects the harness 250 routed in the sliding seat 200 and the harness 21 constituting the harness routing structure 20. The harness 250 routed in the sliding seat 200 is a bundle of so-called insulated electric wires, which have a round cross-sectional shape.

[0048] The connector holder 230 has a main body 231 and fixing plate portions 232 extending to both the left and right sides of the main body 231. The main body 231 has an opening hole at its front end, and the connector 212 is housed in this opening hole. Therefore, the harness 21 is guided from the connector 212 through the inside of the main body 231 to the rear side B, and extends toward the rear side B from a slit-shaped opening hole 23h provided in a step portion 233 (described later). The connector holder 230 is fixed to the frame 20F below the seat cushion 201 by bolts 23B inserted through the fixing plate portions 232. However, the present invention is not limited to the frame 20F.

[0049] Furthermore, the connector holder 230 has a step portion 233 formed at the upper end portion of the main body portion 231, and the aforementioned opening hole 23h (see FIG. 7) is formed in the rear plate of this step portion 233. An upper plate 231u of the main body portion 231 extends from the lower edge portion of the opening hole 23h toward the rear side B. A lower plate 231d is disposed parallel to the upper plate 231u. A bend restricting portion 234 is provided between the rear end portion of the upper plate 231u and the rear end portion of the lower plate 231d of the main body portion 231. The bend restricting portion 234 is an arcuate surface 234s centered on a central axis C4 that is parallel to the left-right direction Y, and the harness 21 is wound around the bend restricting portion 234 when in a predetermined state.

[0050] The harness restricting portion 24 is fixed to the rail 12, which moves in accordance with the pivotal movement of the link arm 11, and restricts the harness path of the harness 21. The harness restricting portion 24 is mainly composed of a harness guide 240, and the harness guide 240 is provided with restricting portions (bending restricting portions 245 to 248 and extension restricting portion 249) that restrict the harness path of the harness 21. Each restricting portion is effective independently, and it is sufficient that at least one is provided.

[0051] The harness guide 240 also has a main body 241 and a fixing plate 242 whose width is slightly reduced in the left-right direction Y on an upper side U of the main body 241. The fixing plate 242 has an opening hole penetrating in the left-right direction Y, through which a stay 24S is inserted. The stay 24S extends to the right side R and is then bent parallel to the up-down direction Z, and its tip end portion is connected to the adjacent rail 12. Therefore, when the rail 12 is stored in the foot space A, the harness guide 240 is also stored in the foot space A. The harness guide 240 is fixed to the rail 12 by a bolt 24B inserted into the tip end portion of the stay 24S. However, the present invention is not limited to the rail 12.

[0052] Furthermore, the harness guide 240 has a first guide portion 243 and a second guide portion 244, which form a guide groove 24g. At the rear end portion of the harness guide 240, an inner plate 243i of the first guide portion 243, which faces the second guide portion 244, extends toward the rear side B. A lower plate 243d is disposed parallel to the inner plate 243i. A bend restricting portion 245 and a bend restricting portion 246 are provided between the front end portion of the inner plate 243i and the front end portion of the lower plate 243d of the first guide portion 243. The bend restricting portion 245 on the upper side U is an arcuate surface 245s centered on a central axis C1 parallel to the left-right direction Y, and the bend restricting portion 246 on the lower side D is an arcuate surface 246s centered on the central axis C1. The central axis C1 is coaxial with the center line of the connecting shaft 112 of the link arm 11.

[0053] Additionally, the harness guide 240, as previously described, includes a first guide portion 243 and a second guide portion 244, which define a guide groove 24g. At the rear end portion of the harness guide 240, an inner plate 244i of the second guide portion 244, which faces the first guide portion 243, extends toward the rear side B. A lower plate 244d is disposed parallel to the inner plate 244i. A bend restricting portion 247 and a bend restricting portion 248 are provided between the front end portion of the inner plate 244i and the rear end portion of the lower plate 244d of the second guide portion 244. The bend restricting portion 247 on the upper side U is an arcuate surface 247s centered on the aforementioned central axis C1, and the bend restricting portion 248 on the lower side D is an arcuate surface 248s centered on a central axis C5 parallel to the left-right direction Y. The bend restricting portion 248 has an axisymmetrical shape with respect to the bend restricting portion 246 when viewed from the left-right direction Y.

[0054] Incidentally, a portion of the harness 21 extending toward the rear side B is inserted into the guide groove 24g formed by the first guide portion 243 and the second guide portion 244. This makes it possible to regulate the harness path of the portion of the harness 21 extending toward the rear side B. Therefore, it can be said that the harness regulator 24 is provided with an extension regulator 249 that regulates the harness path of the portion of the harness 21 extending toward the rear side B. The guide groove 24g is formed slightly wider than the thickness of the harness 21, and regulates the harness path of the harness 21 with the contact surface 249s on the lower side D and the contact surface 249s on the upper side U. Therefore, it can be said that the extension regulator 249 is composed of a pair of contact surfaces 249s, 249s arranged to sandwich the harness 21.

[0055] With this configuration, the harness routing structure 20 can appropriately regulate the harness path when the sliding seat 200 is slid forward F or rearward B. The harness routing structure 20 can also appropriately regulate the harness path when the sliding seat 200 is stored in the foot space A or when it is deployed from the foot space A. The operation modes of the seat support structure 10 and the harness routing structure 20 will be described below.

[0056] First, with reference to Figures 11 and 12, the operation of the seat support structure 10 when the sliding seat 200 slides forward F and the operation of the harness routing structure 20 at that time will be described. Figure 11(a) shows a state in which the sliding seat 200 has slid to the rearmost side B, and Figure 11(b) shows a state in which the sliding seat 200 has slid to the frontmost side F. In Figure 12, the harness routing structure 20 corresponding to Figure 11(a) is represented by a two-dot chain line, and the harness routing structure 20 corresponding to Figure 11(b) is represented by a solid line.

[0057] When sliding the slide sheet 200 forward F, it is necessary to move the slider 13 forward F along the rail 12. Then, the slide sheet 200 attached to the slider 13 also moves forward F (see arrow Sf). Note that when sliding the slide sheet 200 forward F, it is necessary to release a latch (not shown).

[0058] Furthermore, when the sliding seat 200 is slid forward F, the seat-side holding portion 23 moves forward F together with the sliding seat 200 (see arrow Sf). The seat-side holding portion 23 then moves away from the bent-back portion 21d of the harness 21 and approaches the harness restricting portion 24. Thus, when the sliding seat 200 is slid most forward F, the harness 21 is wound around the arcuate surface 224s, which is the bending restricting portion 224 of the vehicle-body-side holding portion 22, and the arcuate surface 245s, which is the bending restricting portion 245 of the harness restricting portion 24. The lower plate 221d and the front plate 221f of the vehicle-body-side holding portion 22 and the upper plate 231u and the lower plate 231d of the seat-side holding portion 23 are in contact with the harness 21.

[0059] In addition, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is slid forward F, the front plate 221f of the vehicle body-side holding portion 22 and the front end portions of the arcuate surface 245s of the harness restraining portion 24 maintain the same position (no misalignment) in the fore-and-aft direction X. Therefore, the portion of the harness 21 extending toward the upper side U has its lower end portion in contact with the front plate 221f of the vehicle body-side holding portion 22, and its upper end portion in contact with the arcuate surface 245s of the harness restraining portion 24. Furthermore, the inner plate 244i of the harness restraining portion 24 and the lower plate 231d of the seat-side holding portion 23 also maintain the same position (no misalignment) in the up-down direction Z. Therefore, the portion of the harness 21 extending toward the rear side B has its front end portion in contact with the inner plate 244i of the harness restraining portion 24, and its middle portion in contact with the lower plate 231d of the seat-side holding portion 23. The front end portion of the harness 21 is also in contact with the inner plate 243i disposed opposite the inner plate 244i.

[0060] Next, the operation of the seat support structure 10 when the sliding seat 200 slides to the rear side B and the operation of the harness routing structure 20 at that time will be described with reference to Figures 13 and 14. Figure 13(a) shows a state in which the sliding seat 200 has slid to the most forward side F, and Figure 13(b) shows a state in which the sliding seat 200 has slid to the most rear side B. In Figure 14, the harness routing structure 20 corresponding to Figure 13(a) is represented by a two-dot chain line, and the harness routing structure 20 corresponding to Figure 13(b) is represented by a solid line.

[0061] When sliding the slide sheet 200 toward the rear side B, it is necessary to move the slider 13 toward the rear side B along the rail 12. Then, the slide sheet 200 attached to the slider 13 also moves toward the rear side B (see arrow Sb). Note that when sliding the slide sheet 200 toward the rear side B, it is also necessary to release a latch (not shown).

[0062] Furthermore, when the sliding seat 200 is slid toward the rear side B, the seat-side holding portion 23 moves toward the rear side B together with the sliding seat 200 (see arrow Sb). Then, the seat-side holding portion 23 moves away from the harness restricting portion 24 and approaches the harness 21 until it abuts against the bent-back portion 21d of the harness 21. In this manner, when the sliding seat 200 is slid most toward the rear side B, the harness 21 is wound around the arc surface 234s, which is the bending restricting portion 234, of the seat-side holding portion 23. Furthermore, the harness 21 is wound around the arc surface 224s, which is the bending restricting portion 224 of the vehicle body-side holding portion 22, and the arc surface 245s, which is the bending restricting portion 245 of the harness restricting portion 24. Then, the lower plate 221d and front plate 221f of the vehicle body side holding portion 22 and the upper plate 231u and lower plate 231d of the seat side holding portion 23 are brought into contact with the harness 21.

[0063] In addition, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is slid toward the rear side B, the front plate 221f of the vehicle body-side holding portion 22 and the front end portions of the arcuate surface 245s of the harness restraining portion 24 maintain the same position (no misalignment) in the fore-and-aft direction X. Therefore, the portion of the harness 21 extending toward the upper side U has its lower end portion in contact with the front plate 221f of the vehicle body-side holding portion 22, and its upper end portion in contact with the arcuate surface 245s of the harness restraining portion 24. Furthermore, the inner plate 244i of the harness restraining portion 24 and the lower plate 231d of the seat-side holding portion 23 also maintain the same position (no misalignment) in the up-down direction Z. Therefore, the portion of the harness 21 extending toward the rear side B has its front end portion in contact with the inner plate 244i of the harness restraining portion 24, and its rear end portion in contact with the lower plate 231d of the seat-side holding portion 23. The front end portion of the harness 21 is also in contact with the inner plate 243i disposed opposite the inner plate 244i.

[0064] Next, the operation of the seat support structure 10 when the sliding seat 200 is stored in the foot space A and the operation of the harness routing structure 20 at that time will be described with reference to Figures 15 and 16. Figure 15(a) shows a state in which the sliding seat 200 is deployed from the foot space A, Figure 15(b) shows a state in which the sliding seat 200 is in the middle of being stored in the foot space A, and Figure 15(c) shows a state in which the sliding seat 200 has been stored in the foot space A. In Figure 16, the harness routing structure 20 corresponding to Figure 15(a) is represented by a two-dot chain line, and the harness routing structure 20 corresponding to Figure 15(c) is represented by a solid line.

[0065] When storing the sliding seat 200 in the foot space A, it is necessary to move the slider 13 to the rearmost position B and pivot the link arm 11 forward F. Then, the pivoting action of the link arm 11 causes the sliding seat 200 to be stored in the foot space A together with the rail 12 and the slider 13 (see arrow Pd). When storing the sliding seat 200 in the foot space A, it is necessary to lift up the rear of the seat with the seat back 202 folded down, thereby releasing a latch (not shown) and pivoting the seat toward the forward side F.

[0066] Furthermore, when the slide seat 200 is stored in the foot space A, the portion of the harness 21 extending upward U falls forward F together with the link arm 11 (see arrow Pd). Then, the harness 21 gradually increases in bending angle from a state in which the harness 21 is wound around the arcuate surface 224s, which is the bending restriction portion 224 of the vehicle body side holding portion 22, and at the same time, the harness 21 gradually winds around the arcuate surface 236s, which is the bending restriction portion 236 of the harness restriction portion 24, and is bent back. Thus, when the slide seat 200 is stored in the foot space A, the harness 21 is unwound from the arcuate surface 224s, which is the bending restriction portion 224, and is newly wound around the arcuate surface 246s, which is the bending restriction portion 246. The harness 21 is also wound around the arcuate surface 245s, which is the bending restriction portion 245, and the arcuate surface 234s, which is the bending restriction portion 234. Then, the lower plate 221d of the vehicle body side holding portion 22, the lower plate 243d of the harness restricting portion 24, and the upper plate 231u and lower plate 231d of the seat side holding portion 23 are brought into contact with the harness 21.

[0067] In addition, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is stored in the foot space A, the lower plate 221d of the vehicle body-side holding portion 22 and the lower plate 243d of the harness restraining portion 24 maintain equal positions (positions without misalignment) in the up-down direction Z. Therefore, the portion of the harness 21 extending toward the forward side F has its rear end portion in contact with the lower plate 221d of the vehicle body-side holding portion 22, and its front end portion in contact with the lower plate 243d of the harness restraining portion 24. Furthermore, the inner plate 244i of the harness restraining portion 24 and the lower plate 231d of the seat-side holding portion 23 also maintain equal positions (positions without misalignment) in the up-down direction Z. Therefore, the portion of the harness 21 extending toward the rear side B has its front end portion in contact with the inner plate 244i of the harness restraining portion 24, and its rear end portion in contact with the lower plate 231d of the seat-side holding portion 23. The front end portion of the harness 21 is also in contact with the inner plate 243i disposed opposite the inner plate 244i.

[0068] Next, with reference to Figures 17 and 18, the operation of the seat support structure 10 when the sliding seat 200 is deployed from the foot space A and the operation of the harness routing structure 20 at that time will be described. Figure 17(a) shows a state in which the sliding seat 200 is stored in the foot space A, Figure 17(b) shows a state in which the sliding seat 200 is in the middle of being deployed from the foot space A, and Figure 17(c) shows a state in which the sliding seat 200 has been deployed from the foot space A. In Figure 18, the harness routing structure 20 corresponding to Figure 17(a) is represented by a two-dot chain line, and the harness routing structure 20 corresponding to Figure 17(c) is represented by a solid line.

[0069] When the sliding seat 200 is to be deployed from the foot space A, it is necessary to move the slider 13 to the rearmost side B and pivot the link arm 11 upwardly. Then, the pivoting action of the link arm 11 causes the sliding seat 200 to be deployed from the foot space A together with the rail 12 and the slider 13 (see arrow Pu). When deploying the sliding seat 200 from the foot space A, it is necessary to pivot the sliding seat 200 toward the upward side U and lower the rear of the seat to engage a latch (not shown) and raise the seat back 202.

[0070] Furthermore, when the slide seat 200 is deployed from the foot space A, the portion of the harness 21 that extends toward the forward side F rises upward toward the upper side U together with the link arm 11 (see arrow Pu). Then, the harness 21 gradually increases in bending angle from a state in which the harness 21 is wound around the arc-shaped surface 236s that is the bending restriction portion 236 of the harness restriction portion 24, and at the same time, the harness 21 gradually winds around the arc-shaped surface 224s that is the bending restriction portion 224 of the vehicle body side holding portion 22. Thus, when the slide seat 200 is deployed from the foot space A, the harness 21 is unwound from the arc-shaped surface 246s that is the bending restriction portion 246, and is newly wound around the arc-shaped surface 224s that is the bending restriction portion 224. The harness 21 is also wound around the arc-shaped surface 245s that is the bending restriction portion 245 and the arc-shaped surface 234s that is the bending restriction portion 234. Then, the lower plate 221d and front plate 221f of the vehicle body side holding portion 22 and the upper plate 231u and lower plate 231d of the seat side holding portion 23 are brought into contact with the harness 21.

[0071] In addition, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is deployed from the foot space A, the front plate 221f of the vehicle body-side holding portion 22 and the front end portions of the arcuate surface 245s of the harness restraining portion 24 maintain the same position (no misalignment) in the fore-and-aft direction X. Therefore, the portion of the harness 21 extending toward the upper side U has its lower end portion in contact with the front plate 221f of the vehicle body-side holding portion 22, and its upper end portion in contact with the arcuate surface 245s of the harness restraining portion 24. Furthermore, the inner plate 244i of the harness restraining portion 24 and the lower plate 231d of the seat-side holding portion 23 also maintain the same position (no misalignment) in the up-and-down direction Z. Therefore, the portion of the harness 21 extending toward the rear side B has its front end portion in contact with the inner plate 244i of the harness restraining portion 24, and its rear end portion in contact with the lower plate 231d of the seat-side holding portion 23. The front end portion of the harness 21 is also in contact with the inner plate 243i disposed opposite the inner plate 244i.

[0072] Next, the operation of the harness routing structure 20 when the rear portion of the sliding seat 200 is pulled up will be described with reference to Fig. 19. In Fig. 19, the harness routing structure 20 before the rear portion of the sliding seat 200 is pulled up is shown by a two-dot chain line, and the harness routing structure 20 after the rear portion of the sliding seat 200 is pulled up is shown by a solid line.

[0073] As described above, when storing the sliding seat 200 in the foot space A, it is necessary to lift the rear portion of the seat with the seatback 202 reclined, thereby releasing a latch (not shown) and pivoting the seat toward the forward side F. In this case, the portion of the harness 21 extending toward the rear side B is also lifted toward the upward side U (see arrow Pp). Then, the harness 21 gradually increases in bending angle from a state in which the harness 21 is wound around the arcuate surface 245s, which is the bending limiting portion 245 of the harness restricting portion 24, and gradually wraps around and bends the arcuate surface 248s, which is the opposing bending limiting portion 248. In this way, when the rear portion of the sliding seat 200 is lifted, the harness 21 is wound around the arcuate surface 248s, which is the bending limiting portion 248 of the harness restricting portion 24.

[0074] As described above, the harness routing structure 20 has the rail 12 extending in the fore-and-aft direction X of the vehicle body 100 supported by the link arm 11, the sliding seat 200 placed on the slider 13 movable along the rail 12, and power supplied to electrical components of the sliding seat 200 which can be stored in the foot space A together with the rail 12 and the slider 13 by pivoting the link arm 11. The harness routing structure 20 includes the harness 21 stretched between the vehicle body 100 and the sliding seat 200, a vehicle body side holding portion 22 fixed to the floor panel 101 of the vehicle body 100 to hold a base end portion of the harness 21, a seat side holding portion 23 fixed to the seat cushion 201 of the sliding seat 200 to hold a tip end portion of the harness 21, and a harness restricting portion 24 fixed to the rail 12 which moves with the pivoting movement of the link arm 11 to restrict the harness path of the harness 21. The harness restricting portion 24 is bent from the vehicle body side retaining portion 22 toward the sliding seat 200, and then extended to the rear side B along the fore-and-aft direction X, and then bent back to the front side F to be attached to the middle portion of the harness 21 leading to the seat side retaining portion 23, thereby restricting the harness path.

[0075] According to such a harness routing structure 20, even when the slide seat 200 is slid in the front-rear direction X or stored in the foot space A, an excessive load can be prevented from acting on the harness 21. More specifically, in the harness routing structure 20 according to the present invention, the harness restricting portion 24 is bent from the vehicle body-side retaining portion 22 toward the sliding seat 200 (toward the upward side U when the sliding seat 200 is deployed from the foot space A), and then extends toward the rear side B along the fore-and-aft direction X, then bent back toward the forward side F, and is brought into contact with the intermediate portion of the harness 21 leading to the seat-side retaining portion 23, thereby restricting the harness path. Therefore, deformation (displacement) of the harness 21 is kept small in the intermediate portion of the harness 21 that is separated from both the vehicle body-side retaining portion 22 and the seat-side retaining portion 23, and local bending (bending with a large curvature, i.e., a sharp and abrupt bending) of the harness 21 can be prevented. Therefore, even when the sliding seat 200 is slid in the fore-and-aft direction X or stored in the foot space A, an excessive load can be prevented from being applied to the harness 21.

[0076] In addition, in the harness routing structure 20 according to this embodiment, the harness restricting portion 24 is provided with a bending restricting portion 245 that is disposed along the portion 21a of the harness 21 that is bent from the direction approaching the slide seat 200 toward the rear side B and restricts the harness shape of the portion 21a.

[0077] According to this harness routing structure 20, the harness 21 is wound around the bend restricting portion 245 and bent along the bend restricting portion 245. This prevents the portion 21a of the harness 21 that is bent from the direction approaching the slide seat 200 toward the rear side B from having a radius smaller than the allowable bend radius. This prevents an excessive load from acting on the harness 21.

[0078] In addition, in the harness routing structure 20 of this embodiment, the bending control portion 245 is an arcuate surface 245s formed on the harness control portion 24, and the central axis C1 of the arcuate surface 245s is arranged coaxially with the pivot center at the connecting portion of the link arm 11.

[0079] According to such a harness routing structure 20, when the harness 21 follows the pivoting movement of the link arm 11 and is wound around the arcuate surface 245s, which is the bending restricting portion 245, it is possible to prevent the harness 21 from being pulled and becoming tense. Therefore, it is possible to prevent an excessive load from being applied to the harness 21. Furthermore, when the harness 21 follows the pivoting movement of the link arm 11 and is unwound from the arcuate surface 245s, which is the bending restricting portion 245, it is possible to prevent the harness 21 from becoming significantly loose.

[0080] In addition, in the harness routing structure 20 according to this embodiment, the harness restricting portion 24 is provided with a bending restricting portion 246 that is in contact with the bent portion 21b (see Figure 16) in the vicinity of the bending restricting portion 245 in the harness 21 when the slide seat 200 is stored in the foot space A and restricts the bending shape of the bent portion 21b.

[0081] According to this harness routing structure 20, when the slide seat 200 is stored in the foot space A, the harness 21 is wound around the bend restricting portion 246 and bent along the bend restricting portion 246. This prevents the bent portion 21b of the harness 21 near the bend restricting portion 245 from having a radius smaller than the allowable bend radius. This prevents excessive load from being applied to the harness 21.

[0082] In addition, in the harness routing structure 20 of this embodiment, the bending control portion 246 is an arcuate surface 246s formed on the harness control portion 24, and the central axis C1 of the arcuate surface 246s is arranged coaxially with the pivot center at the connecting portion of the link arm 11.

[0083] According to such a harness routing structure 20, when the harness 21 follows the pivoting movement of the link arm 11 and is wound around the arcuate surface 246s, which is the bending restricting portion 246, it is possible to prevent the harness 21 from being pulled and becoming tense. Therefore, it is possible to prevent an excessive load from being applied to the harness 21. Furthermore, when the harness 21 follows the pivoting movement of the link arm 11 and is unwound from the arcuate surface 246s, which is the bending restricting portion 246, it is possible to prevent the harness 21 from becoming significantly loose.

[0084] In addition, in the harness routing structure 20 according to this embodiment, the vehicle body side holding portion 22 is provided with a bending control portion 224 that is in contact with the bent portion 21c near the base end portion of the harness 21 when the slide seat 200 is deployed from the foot space A, and controls the bending shape of the bent portion 21c.

[0085] According to this harness routing structure 20, when the slide seat 200 is deployed from the foot space A, the harness 21 is wound around the bend restricting portion 224 and bent along the bend restricting portion 224. This prevents the bent portion 21c near the base end portion of the harness 21 from having a radius smaller than the allowable bend radius. This prevents excessive load from being applied to the harness 21.

[0086] In addition, in the harness routing structure 20 of this embodiment, the bending control portion 224 is an arcuate surface 224s formed on the vehicle body side holding portion 22, and the central axis C3 of the arcuate surface 224s is arranged coaxially with the pivot center at the connecting portion of the link arm 11.

[0087] According to the harness routing structure 20, when the harness 21 follows the pivoting movement of the link arm 11 and is wound around the arcuate surface 224s, which is the bending restricting portion 224, it is possible to prevent the harness 21 from being pulled and becoming tense. Therefore, it is possible to prevent an excessive load from being applied to the harness 21. Furthermore, when the harness 21 follows the pivoting movement of the link arm 11 and is unwound from the arcuate surface 224s, which is the bending restricting portion 224, it is possible to prevent the harness 21 from becoming significantly loose.

[0088] In addition, in the harness routing structure 20 according to this embodiment, the seat side holding portion 23 is provided with a bending restriction portion 234 that is in contact with the portion 21d of the harness 21 that is bent back from the direction toward the rear side B to the direction toward the front side F when the slide seat 200 is slid toward the rear side B, and restricts the bending shape of the portion 21d.

[0089] According to this harness routing structure 20, when the sliding seat 200 is slid toward the rear side B, the harness 21 is wound around the bend restricting portion 234 and bent along the bend restricting portion 234. This prevents the portion 21d of the harness 21 that is bent back from the direction toward the rear side B toward the direction toward the front side F from having a radius smaller than the allowable bend radius. This prevents an excessive load from acting on the harness 21.

[0090] In addition, in the harness routing structure 20 according to this embodiment, the harness regulating portion 24 is provided with a bending regulating portion 248 that is in contact with the bent portion 21e (see Figure 19) of the harness 21 near the connecting portion of the link arm 11 when the rear portion of the seat of the slide seat 200 is pulled up, thereby regulating the harness shape of the bent portion 21e.

[0091] According to this harness routing structure 20, when the rear portion of the sliding seat 200 is raised, the harness 21 is wound around the bend restricting portion 248 and bent along the bend restricting portion 248. This prevents the bent portion 21e of the harness 21 near the connection portion of the link arm 11 from having a radius smaller than the allowable bend radius. This prevents excessive load from being applied to the harness 21.

[0092] In the harness routing structure 20 according to this embodiment, the harness restricting portion 24 is provided with an extension restricting portion 249 that restricts the harness path of the portion of the harness 21 that extends in the direction toward the rear side B. According to this harness routing structure 20, it is possible to support the intermediate portion of the harness 21 that is spaced apart from both the vehicle body-side holding portion 22 and the seat-side holding portion 23. This prevents the intermediate portion of the harness 21 from sagging due to gravity. This prevents the sagging harness 21 from interfering with surrounding components.

[0093] In the harness routing structure 20 according to this embodiment, the extension restricting portion 249 is configured with a pair of contact surfaces 249s, 249s arranged so as to sandwich the harness 21 therebetween. According to this harness routing structure 20, twisting can be suppressed in the middle portion of the harness 21 that is separated from both the vehicle body side holding portion 22 and the seat side holding portion 23. This prevents the harness 21 from being deformed into an unintended shape. This prevents the harness 21 that has been deformed into an unintended shape from interfering with surrounding components.

[0094] In the harness routing structure 20 according to this embodiment, the connectors 211 and 212 of the harness 21 are held by the vehicle body side holding portion 22 and the seat side holding portion 23 . According to such a harness routing structure 20, it is possible to change the specifications of the harness 21 that is laid between the vehicle body 100 and the sliding seat 200. For example, it is possible to apply a flexible flat cable only to the harness 21 that is laid between the vehicle body 100 and the sliding seat 200.

[0095] In the harness routing structure 20 according to this embodiment, the harness 21 is routed in the gap between the floor panel 101 that constitutes the vehicle body 100 and the seat cushion 201 that constitutes the sliding seat 200 . According to this harness routing structure 20, the harness 21 can be accommodated in the gap between the floor panel 101 and the seat cushion 201. Therefore, the harness 21 is hidden from the view of a person seated on the sliding seat 200 or people around, thereby improving the aesthetic appearance.

[0096] In correspondence between the configuration of the present invention and the above-described embodiment, The seat support structure corresponds to seat support structure 10; The link arm corresponds to link arm 11, The rail is compatible with rail 12, The slider corresponds to slider 13, The harness wiring structure corresponds to the harness wiring structure 20, The harness is compatible with Harness 21. The vehicle body side holding portion corresponds to the vehicle body side holding portion 22, The third bending restriction portion corresponds to the bending restriction portion 224, The arc surface corresponds to the arc surface 224s, The seat side holding portion corresponds to the seat side holding portion 23, The fourth bending restriction portion corresponds to the bending restriction portion 234, The arc surface corresponds to the arc surface 234s, The harness restricting portion corresponds to the harness restricting portion 24, The first bending restriction portion corresponds to the bending restriction portion 245, The arc surface corresponds to the arc surface 245s, The second bending restriction portion corresponds to the bending restriction portion 246, The arc surface corresponds to the arc surface 246s, The fifth bending restriction portion corresponds to the bending restriction portion 248, The arc surface corresponds to the arc surface 248s, The extension restricting portion corresponds to the extension restricting portion 249, The contact surface corresponds to contact surface 249s, The connector corresponds to connectors 211 and 212. The car body corresponds to the car body 100, The floor panel corresponds to the floor panel 101. The slide sheet is compatible with the slide sheet 200. The seat cushion is compatible with seat cushion 201. The foot space corresponds to foot space A, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

[0097] For example, in the harness routing structure 20 disclosed in the present application, a step portion 223 is formed in a main body portion 221 constituting the vehicle body side holding portion 22, and an opening hole 22h through which the harness 21 is inserted is formed in a front plate of the step portion 223. However, as shown in Fig. 20, the opening hole 22h through which the harness 21 is inserted may be formed in an upper plate of the main body portion 221 constituting the vehicle body side holding portion 22, and the harness 21 may be wound around the bending restriction portion 224 when the sliding seat 200 is stored in the foot space A.

[0098] According to such a harness routing structure 20, when the sliding seat 200 is deployed from the foot space A, the bending angle of the portion 21c bent near the base end portion of the harness 21 gradually increases. Conversely, when the sliding seat 200 is stored in the foot space A, the portion 21c bent near the base end portion of the harness 21 gradually increases. In other words, it can be said that the vehicle body side holding portion 22 is provided with a bending restriction portion 224 that is in contact with the portion 21c bent near the base end portion of the harness 21 and restricts the bending shape of the portion 21c when the sliding seat 200 is stored in the foot space A.

[0099] Furthermore, in the harness routing structure 20 disclosed in the present application, the harness 21 moves from the vehicle body-side holding portion 22 in a direction approaching the sliding seat 200 (a direction toward the upper side U when the sliding seat 200 is deployed from the foot space A), and then is bent and stretched to the rear side B along the fore-and-aft direction X, and then is bent back to the front side F to reach the seat-side holding portion 23. However, the harness 21 may also be bent from the vehicle body-side holding portion 22 in a direction approaching the sliding seat 200 (a direction toward the upper side U when the sliding seat 200 is deployed from the foot space A), and then is bent and stretched to the front side F along the fore-and-aft direction X, and then is bent back to the rear side B to reach the seat-side holding portion 23.

[0100] Furthermore, in the harness routing structure 20 disclosed in the present application, the rail 12 has its front end portion supported (pivotally supported) by the link arm 11, and its rear end portion supported (non-pivotally supported) by the kick-up 102. However, the rail 12 may have its front end portion supported (non-pivotally supported) by the kick-up 102, and its rear end portion supported (pivotally supported) by the link arm 11. In this case, the foot space A is located on the rear side B of the sliding seat 200.

[0101] The present invention also includes a harness restricting portion 24 constituting the harness routing structure 20 described above. That is, the present invention also includes the harness restricting portion 24 of the harness routing structure 20, which supplies power to electrical components of the sliding seat 20, which is configured such that a rail 12 extending in the longitudinal direction X of the vehicle body 100 is supported by a link arm 11, a sliding seat 200 is placed on a slider 13 movable along the rail 12, and the sliding seat 200 can be stored in the foot space A together with the rail 12 and the slider 13 by pivoting of the link arm 11, and which is configured such that the harness restricting portion 24 is in contact with a midway portion of the harness 21 that extends from a vehicle body-side retaining portion 22 that retains a base end portion of the harness 21 stretched between the vehicle body 100 and the sliding seat 200, moves toward the sliding seat 200, is bent, and is extended to the rear side B along the longitudinal direction X, is bent back to the front side F, and reaches a seat-side retaining portion 23 that retains a tip end portion of the harness 21, thereby restricting the harness path.

[0102] This also achieves the same effect as the harness routing structure 20 according to the above-described embodiment. That is, deformation (displacement) of the harness 21 is kept small in the midsection of the harness 21 that is separated from both the vehicle body-side holding portion 22 and the seat-side holding portion 23, and it is possible to prevent local bending (bending with a large curvature, that is, sharp and sudden bending) of the harness 21. Therefore, even when the sliding seat 200 is slid in the fore-and-aft direction X or stored in the foot space A, it is possible to prevent excessive load from acting on the harness 21.

[0103] Finally, in the harness routing structure 1 disclosed in the present application, the harness 21 has been described as being a flexible flat cable. However, the harness 21 may be a so-called coated electric wire having a round cross-sectional shape, or a so-called ribbon electric wire having a flat cross-sectional shape. [Explanation of symbols]

[0104] 10...Seat support structure 11...Link arm 12...Rail 13...Slider 20...Harness wiring structure 21...Harness 22...Vehicle body side holding part 224...Bending restriction section 224s...arc surface 23...Seat side holding part 234...Bending restriction section 234s...arc surface 24...Harness regulation part 245...Bending restriction section 245s...arc surface 246...Bending restriction section 246s...arc surface 248...Bending restriction section 248s...Arc surface 249... Extension restriction section 249s...creeping surface 211...Connector 212...Connector 100...Body 101...Floor panel 200...Slide seat 201...Seat cushion A...Foot space

Claims

1. A harness wiring structure for supplying power to electrical components of the sliding seat, which is configured such that a rail extending in the fore-and-aft direction of a vehicle body is supported by a link arm, a sliding seat is placed on a slider that is movable along the rail, and the sliding seat can be stored in a foot space together with the rail and the slider by pivoting of the link arm, a harness that is stretched between the vehicle body and the sliding seat; a vehicle body side holding portion fixed to the vehicle body and holding a base end portion of the harness; a seat-side holding portion that is fixed to the side of the slide seat and holds the tip portion of the harness; a harness restricting portion fixed to a member that moves in accordance with the pivotal movement of the link arm and restricts the harness path of the harness; The harness restricting portion is bent from the vehicle body side holding portion toward the sliding seat, and then extended to one side along the front-rear direction, and then bent back to the other side to be brought into contact with a midway portion of the harness leading to the seat side holding portion, thereby restricting the harness path. Harness routing structure.

2. The harness restricting portion is provided with a first bending restricting portion that is in contact with a portion of the harness that is bent from a direction approaching the slide seat toward the one side and restricts the harness shape at that portion. The harness routing structure according to claim 1 .

3. The first bend restricting portion is an arcuate surface formed on the harness restricting portion, and the central axis of the arcuate surface is arranged coaxially with the pivot center of the connecting portion of the link arm. The harness routing structure according to claim 2.

4. The harness restricting portion is provided with a second bending restricting portion that is in contact with a portion of the harness bent near the first bending restricting portion and restricts the bending shape of the portion when the slide seat is stored in the foot space. The harness routing structure according to claim 2 or 3.

5. The second bend restricting portion is an arcuate surface formed on the harness restricting portion, and the central axis of the arcuate surface is arranged coaxially with the pivot center of the connecting portion of the link arm. The harness routing structure according to claim 4.

6. The vehicle body side holding portion is provided with a third bending restriction portion that is in contact with a bent portion near the base end portion of the harness and restricts the bending shape of the bent portion when the slide seat is stored in the foot space or deployed from the foot space. The harness routing structure according to any one of claims 1 to 5.

7. The third bending restriction portion is an arcuate surface formed on the vehicle body side holding portion, and the central axis of the arcuate surface is arranged coaxially with the pivot center of the connecting portion of the link arm. The harness routing structure according to claim 6.

8. The seat-side holding portion is provided with a fourth bending restriction portion that is in contact with a portion of the harness that is bent back from the direction toward the one side toward the direction toward the other side when the slide seat is slid to the one side and restricts the bending shape of the portion. The harness routing structure according to any one of claims 1 to 7.

9. The harness restricting portion is provided with a fifth bend restricting portion that is in contact with a bent portion of the harness near the connecting portion of the link arm when the rear portion of the slide seat is raised, and that restricts the shape of the harness at that portion. The harness routing structure according to any one of claims 1 to 8.

10. The harness restricting portion is provided with an extension restricting portion that restricts the harness path of at least a portion of the harness that extends in a direction toward the one side. The harness routing structure according to any one of claims 1 to 9.

11. The extension restricting portion is composed of a pair of contact surfaces arranged to sandwich the harness. The harness routing structure according to claim 10.

12. The connector of the harness is held by at least one of the vehicle body side holding portion and the seat side holding portion. The harness routing structure according to any one of claims 1 to 11.

13. The harness is routed in a gap between a floor panel constituting the vehicle body and a seat cushion constituting the slide seat. The harness routing structure according to any one of claims 1 to 12.

14. A harness restricting portion of a harness routing structure that supplies power to electrical components of the sliding seat, which is configured such that a rail extending in the fore-and-aft direction of a vehicle body is supported by a link arm, a sliding seat is placed on a slider that is movable along the rail, and the sliding seat can be stored in a foot space together with the rail and the slider by pivoting of the link arm, The harness is bent from a vehicle body side holding portion that holds a base end portion of the harness that is stretched between the vehicle body and the slide seat toward the direction approaching the slide seat, and is then extended to one side along the front-rear direction, and is then bent back to the other side, and is brought into contact with a midway portion of the harness that reaches a seat side holding portion that holds a tip end portion of the harness, thereby regulating the harness path. Harness regulation section.

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