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 the foot of a driver.SOLUTION: A harness arrangement structure 20 is provided with a harness 21 hung across a vehicle body 100 and a slide seat 200, and a floor-side guiding part 24 fixed to the slide seat 200 side to guide a floor-side middle part of the harness 21. The floor-side guiding part 24 guides the harness 21 bent back from a direction of going along a longitudinal direction X of the vehicle body 100 toward a rear side B to a direction of going toward a front side F, in a lateral direction Y of the vehicle body 100 and guides the harness, in a direction cros,ing the lateral direction Y, to the slide seat 200.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 that can be stored in the foot space by pivoting the seat back forward in a reclined position, which is called tilt-down (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 Publication No. 2020-066248 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 provides a harness wiring structure that supplies power to electrical components of a sliding seat that has a rail extending in the longitudinal direction of a vehicle body, a link arm attached to a slider that is movable along the rail, and is supported so as to be retractable into a foot space by pivotal movement of the link arm, the harness wiring structure including a harness that is stretched between the vehicle body and the sliding seat, and a floor-side guide portion that is fixed to the side of the sliding seat and guides a floor-side intermediate portion of the harness, to guides the harness bent from one side to the other side along the longitudinal direction of the vehicle body in the left-right direction of the vehicle body. A main body is provided, and the main body is fixed to the slider. The harness is bent from one side to the other along the longitudinal direction of the vehicle body, and is guided by the main body in the left-right direction of the vehicle body along the axis of the pivot center of the link arm, and is also guided in a direction intersecting the left-right direction to be led to the slide seat. It is characterized by the following. In the present invention, the front-rear direction is not limited to the strict front-rear direction, but is a concept that allows for a certain degree of misalignment. Similarly, the left-right direction is not limited to the strict left-right direction, but is a concept that allows for a certain degree of misalignment. Therefore, the front-rear direction and the left-right direction are not limited to a strict perpendicular intersection, but are in a relationship that allows for a certain degree of misalignment.

[0007] The present invention also includes a floor-side guide part constituting the harness routing structure described above. That is, the floor-side guide part is a floor-side guide part of a harness routing structure that has a rail extending in the longitudinal direction of the vehicle body, a link arm attached to a slider that is movable along the rail, and supplies power to electrical components of a slide seat that is supported so as to be retractable in a foot space by pivoting of the link arm, and guides the harness that has been bent from one side to the other along the longitudinal direction of the vehicle body in the left-right direction of the vehicle body. A main body is provided, and the main body is fixed to the slider and guides the harness, which is bent from one side to the other along the longitudinal direction of the vehicle body, in the left-right direction of the vehicle body along the axis of the pivot center of the link arm. At the same time, the guide is guided in a direction intersecting the left-right direction to the slide sheet.

[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. Specifically, according to the harness routing structure and floor-side guide unit of the present invention, the floor-side guide unit guides the harness, which is bent back from one side along the fore-and-aft direction of the vehicle body to the other side, in the left-right direction of the vehicle body and in a direction intersecting the left-and-right direction, to the sliding seat. Therefore, when the sliding seat slides in the fore-and-aft direction, the bent portion of the harness follows (moves), and when the sliding seat is stored in the footwell, the portion of the harness extending in the direction intersecting the left-and-right direction of the vehicle body follows (pivots) to accommodate the movement of the sliding seat. This minimizes deformation (displacement) of the harness and prevents localized bending (bending with a large curvature, i.e., a sharp, sharp bend) in the harness. Therefore, even when the sliding seat slides in the fore-and-aft direction or when the sliding seat is stored in the footwell, excessive loads on the harness can be prevented.

[0009] In one aspect of this invention, the floor side guide portion has a floor side main body portion that guides the harness in the left-right direction of the vehicle body, and a floor side tip portion that is attached to the exit side opening portion of the floor side main body portion and guides the harness in a direction that intersects the left-right direction, and the floor side tip portion may be supported so as to be freely rotatable around a central axis at the exit side opening portion of the floor side main body portion.

[0010] According to this invention, when the sliding seat is stored in the foot space, the floor-side tip portion rotates in response to changes in the harness path caused by the movement of the sliding seat, preventing the harness from being pulled or locally bent. Also, when the sliding seat is deployed from the foot space, the floor-side tip portion rotates in response to changes in the harness path caused by the movement of the sliding seat, preventing the harness from being pulled or locally bent. Therefore, excessive loads can be prevented from being applied to the harness.

[0011] In another aspect of the present invention, the rotation center of the floor-side tip portion may be arranged coaxially with the pivot center of the connecting portion of the link arm. According to this invention, even if the link arm pivots, the total length of the harness route is kept constant by the rotation of the floor-side tip, so the harness is prevented from being pulled or locally bent, and excessive load is prevented from acting on the harness. It is also possible to prevent the harness from becoming significantly loose.

[0012] As another aspect of the present invention, the length of the harness passage formed in the floor-side main body portion may be longer than five times the outer diameter of the harness. With this invention, even if a torsional load is applied to the portion of the harness that is inserted into the floor-side main body due to the pivoting of the floor-side tip, the twist is dispersed throughout the entire harness passage, preventing localized twisting of the harness and thus preventing excessive load from acting on the harness.

[0013] As another aspect of the present invention, a bending radius of the harness passage formed at the floor-side tip portion may be greater than one time the outer diameter of the harness. According to this invention, even if a pulling load or a pushing load is applied to the portion of the harness inserted into the floor-side end portion due to the rotation of the floor-side end portion, the bending radius is restricted in accordance with the shape of the harness passage, thereby preventing localized bending of the harness and preventing excessive load from being applied to the harness.

[0014] In another aspect of the present invention, a seat side guide section is provided that is fixed to the side of the slide seat and guides the middle portion of the harness on the seat side, and the seat side guide section guides the harness guided by the floor side guide section from a direction intersecting the left-right direction of the vehicle body to the left-right direction, leading it to the slide seat.

[0015] The present invention also includes a seat-side guide portion constituting the harness routing structure described above. That is, the seat-side guide portion is a seat-side guide portion of a harness routing structure that has a rail extending in the front-rear direction of the vehicle body, a link arm attached to a slider that is movable along the rail, and that supplies power to electrical components of a sliding seat that is supported so as to be retractable in the foot space by pivoting of the link arm, The main body is fixed to the slider of the floor-side guide part that is fixed to the side of the slide seat and guides the floor-side intermediate part of the harness, and the harness that is bent back from one side to the other along the longitudinal direction of the vehicle body is guided in the left-right direction of the vehicle body along the axis of the pivot center of the link arm and is guided in the direction intersecting the left-right direction. The harness is guided from a direction intersecting the left-right direction of the vehicle body to the left-right direction, and is then led to the slide seat.

[0016] According to this invention, the seat-side guide portion guides the harness, which is guided by the floor-side guide portion, from a direction intersecting the left-right direction of the vehicle body to the left-right direction, leading it to the sliding seat. Therefore, when the sliding seat is stored in the foot space, the portion of the harness that extends in the direction intersecting the left-right direction of the vehicle body follows (pivots) to accommodate the movement of the sliding seat. This minimizes deformation (displacement) of the harness and prevents localized bending (bending with a large curvature, i.e., sharp, sudden bending) in the harness. Therefore, even when the sliding seat is slid forward and backward or stored in the foot space, excessive loads are prevented from acting on the harness.

[0017] In another aspect of the present invention, the seat side guide portion has a seat side main body portion that guides the harness in the left-right direction of the vehicle body, and a seat side tip portion that is attached to an entrance side opening portion of the seat side main body portion and guides the harness from a direction that intersects with the left-right direction, and the seat side tip portion may be supported so as to be freely rotatable around a central axis at the entrance side opening portion of the seat side main body portion.

[0018] According to this invention, when the sliding seat is stored in the foot space, the seat-side end portion rotates in response to changes in the harness path caused by the movement of the sliding seat, preventing the harness from being pulled or locally bent. Also, when the sliding seat is deployed from the foot space, the seat-side end portion rotates in response to changes in the harness path caused by the movement of the sliding seat, preventing the harness from being pulled or locally bent. Therefore, excessive loads can be prevented from being applied to the harness.

[0019] In another aspect of the present invention, the rotation center of the seat-side tip end portion may be arranged coaxially with the pivot center of the connecting portion of the link arm. According to this invention, even if the link arm pivots, the rotation of the seat-side end keeps the total length of the harness route constant, preventing the harness from being pulled or locally bent. This prevents excessive load from being applied to the harness, and also prevents the harness from becoming significantly loose.

[0020] In another aspect of the present invention, the length of the harness passage formed in the seat-side main body portion may be longer than five times the outer diameter of the harness. With this invention, even if a torsional load is applied to the portion of the harness that is inserted into the seat-side main body due to the pivoting of the seat-side tip, the torsion is dispersed throughout the entire harness passage, preventing localized twisting of the harness and thus preventing excessive load from being applied to the harness.

[0021] In another aspect of the present invention, the bending radius of the harness passage formed in the seat-side tip portion may be greater than one time the outer diameter of the harness. According to this invention, even if a pulling load or a pushing load is applied to the portion of the harness inserted into the seat-side end due to the rotation of the seat-side end, the bending radius is restricted in accordance with the shape of the harness passage, thereby preventing local bending of the harness and preventing excessive load from being applied to the harness.

[0022] In another aspect of the present invention, a vehicle body side holding portion may be provided for holding a base end portion of the harness, and a connector of the harness may be disposed on the vehicle body side holding portion. According to this invention, it is possible to connect the harness routed in the vehicle body and the harness constituting the harness routing structure by the vehicle body side holding portion.

[0023] In another aspect of the present invention, a seat-side holding portion may be provided for holding a tip portion of the harness, and a connector of the harness may be disposed on the seat-side holding portion. According to this invention, it is possible to connect the harness routed in the sliding seat and the harness constituting the harness routing structure by the seat-side holding portion.

[0024] 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]

[0025] 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]

[0026] [Figure 1] FIG. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] 6 is a cross-sectional view taken along the line AA in FIG. 5. [Figure 7] FIG. [Figure 8] 8 is a cross-sectional view taken along the arrow BB in FIG. 7. [Figure 9] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the slide seat is slid forward. [Figure 10] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the sliding seat is slid forward. [Figure 11] 10A and 10B are explanatory diagrams showing the operation of the seat support structure when the sliding seat is slid rearward. [Figure 12] 10A and 10B are explanatory diagrams showing the operation of the harness routing structure when the sliding seat is slid rearward; [Figure 13] 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 14] 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 15] 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 16] 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 17] FIG. 10 is a side view of a harness routing structure according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0027] 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.

[0028] FIG. 1 is a perspective view of the seat support structure 10. FIG. 2 is a perspective view of the harness routing structure 20, FIG. 3 is a side view of the harness routing structure 20, and FIG. 4 is a front view of the harness routing structure 20. FIG. 5 is an enlarged perspective view of the floor-side guide portion 24, and FIG. 6 is a cross-sectional view taken along the line AA in FIG. 5. FIG. 7 is an enlarged perspective view of the seat-side guide portion 25, and FIG. 8 is a cross-sectional view taken along the line BB in FIG. 7. 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 slider 12, to which the floor-side guide portion 24 is fixed, is indicated by a two-dot chain line. All components constituting the seat support structure 10 are omitted from FIGS. 3 to 8.

[0029] 9 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 is slid forward to the F side, and FIG. 10 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 is slid forward to the F side. FIG. 11 is an explanatory diagram showing the operation of the seat support structure 10 when the sliding seat 200 is slid rearward to the B side, and FIG. 12 is an explanatory diagram showing the operation of the harness routing structure 20 when the sliding seat 200 is slid rearward to the B side. In FIGS. 9 and 11, the rail 11 on the left side L and the like have been removed so that the harness routing structure 20 can be seen. In FIGS. 10 and 12, not only the rail 11 on the left side L but also the rail 11 on the right side R have been removed, and before and after the operation are indicated by two-dot chain lines and solid lines.

[0030] Furthermore, Fig. 13 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. 14 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. 15 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. 16 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. Note that in Figs. 13 and 15, the rail 11 on the left side L and the like have been removed so that the harness routing structure 20 can be seen. In Figs. 14 and 16, not only the rail 11 on the left side L but also the rail 11 on the right side R have been removed, and before and after the operation are indicated by two-dot chain lines and solid lines.

[0031] As shown in Fig. 1, a vehicle body 100 has a floor panel 101. 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 rails 11, a pair of sliders 12, and four link arms 13.

[0032] The rails 11 extend along the front-rear direction X of the car body 100. The rails 11 are arranged in parallel at a predetermined interval and fixed to a floor panel 101 that constitutes the car body 100. A track groove 11r is formed on the upper surface of each rail 11 along the front-rear direction X.

[0033] The sliders 12 are supported in a state where they are fitted into the track grooves 11r of the rails 11. Therefore, each slider 12 is movable along the rails 11 (see arrow S). A through-hole 12h penetrating in the left-right direction Y is formed at the front end portion and the rear end portion of each slider 12.

[0034] The link arm 13 has a connecting shaft 131 protruding in the left-right direction Y from a side surface portion on the base end side thereof. The link arm 13 is pivotally connected to the slider 12 by inserting the connecting shaft 131 into a through-hole 12h formed in the slider 12. Therefore, each link arm 13 can pivot within a range of approximately 90 degrees from the front side F to the upper side U with the connecting shaft 131 as the pivot center (see arrow P).

[0035] The link arm 13 also has a connecting shaft 132 that protrudes in the left-right direction Y from a side portion at the tip end thereof. The link arm 13 is pivotally connected to the frame of the seat cushion 201 by inserting the connecting shaft 132 into a through-hole 20h formed in the frame of the seat cushion 201. Therefore, it can be said that each link arm 13 can pivot within a range of approximately 90 degrees from the lower side D to the rear side B around the connecting shaft 132 as a pivot center (see FIGS. 13 and 15).

[0036] With this configuration, the seat support structure 10 allows the sliding seat 200 to slide in the fore-and-aft direction X of the vehicle body 100 by moving the slider 12 along the rail 11. Also, the seat support structure 10 allows the sliding seat 200 to be stored in the foot space A by pivoting the link arm 13 attached to the slider 12. 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 releasing a latch (not shown) with the seat back 202 in a folded position and pivoting it toward the front side F.

[0037] 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, a floor side guide portion 24, and a seat side guide portion 25. These members will be described in detail below with reference to Figs. 2 to 8.

[0038] The harness 21 is laid between the vehicle body 100 and the sliding seat 200. The harness 21 is formed by bundling a plurality of insulated electric wires. 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 terminal fittings that are crimped to the insulated electric wires. A portion of the harness 21 is inserted into a rubber tube 31. However, the presence or absence of the rubber tube 31 is not limited.

[0039] The harness 21 is bent back from a direction toward the rear side B to a direction toward the front side F along the fore-and-aft direction X of the vehicle body 100 (see bent back portion 21a). Thereafter, the harness 21 is guided by the floor-side guide portion 24 to the right side R of the vehicle body 100 and in a direction perpendicular to the left-right direction Y (see extending portion 21b), and is guided by the seat-side guide portion 25 from a direction perpendicular to the left-right direction Y of the vehicle body 100 (see extending portion 21b) to the left side L. The portion of the harness 21 that is extended toward the rear side B is fixed to the rail 11 on the left side L by a clamp 32.

[0040] The vehicle body side holding portion 22 holds a 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 the connector holder 220. The connector 151 of the harness 150 routed in the vehicle body 100 is coupled (connected) to the 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 is also formed by bundling so-called coated electric wires.

[0041] Furthermore, in the harness routing structure 20 according to this embodiment, the vehicle body-side holding portion 22 is not fixed to any member. However, the vehicle body-side holding portion 22 may be fixed to the floor panel 101 or other member constituting the vehicle body 100. For example, the connector holder 220 may be provided with a bolt hole, and may be fixed to the floor panel 101 or other member by a bolt inserted into the bolt hole. Furthermore, the harness 150 and the harness 21 do not have to be connected by the vehicle body-side holding portion 22. In other words, the harnesses 150 and 21 may not each have the connectors 151 and 211, and the harness 150 and the harness 21 may be a single continuous harness.

[0042] The seat-side holding portion 23 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 the connector holder 230. A connector 262 of the harness 260 routed in the sliding seat 200 is coupled (connected) to the connector 212. This electrically connects the harness 260 routed in the sliding seat 200 and the harness 21 constituting the harness routing structure 20. The harness 260 is also formed by bundling so-called coated electric wires.

[0043] Furthermore, in the harness routing structure 20 according to this embodiment, the seat-side holding portion 23 is not fixed to any member. However, the seat-side holding portion 23 may be fixed to the seat cushion 201 or other member constituting the slide seat 200. For example, the connector holder 230 may be provided with a bolt hole, and the connector holder 230 may be fixed to the seat cushion 201 or other member by a bolt inserted into the bolt hole. Furthermore, the harness 260 and the harness 21 do not have to be connected by the seat-side holding portion 23. In other words, the harnesses 260 and 21 may not be provided with the connectors 262 and 212, and the harness 260 and the harness 21 may be a single continuous harness.

[0044] The floor-side guide section 24 is fixed to the side of the sliding seat 200 and guides the middle part of the harness 21 on the floor side. Specifically, it is fixed to the slider 12 that moves in the front-rear direction X together with the sliding seat 200 and guides the middle part of the harness 21 close to the vehicle body 100. The floor-side guide section 24 is mainly composed of a main body section 241 and a tip section 242, and a harness passage 241P of the main body section 241 and a harness passage 242P of the tip section 242 are communicated (continuously connected) to form one harness passage.

[0045] The main body 241 has a main portion formed in a substantially cylindrical shape. The main body 241 has a trunk 243 extending downward D and a step 244 protruding forward F from the lower end of the trunk 243. The step 244 has a stay hole penetrating in the left-right direction Y, through which the stay 24S is inserted. The stay 24S extends to the right side R and is then bent parallel to the front-rear direction X, and its tip is connected to the adjacent slider 12. Therefore, when the slider 12 moves in the front-rear direction X, the floor-side guide 24 also moves in the front-rear direction X. In this way, the floor-side guide 24 is fixed to the slider 12 by a bolt 24B inserted into the tip of the stay 24S. However, the present invention is not limited to the slider 12.

[0046] The harness passage 241P described above is also formed in the main body 241. The harness passage 241P penetrates the main body 241 from the base end (left end) to the tip end (right end), and its passage length L1 is designed to be longer than five times the outer diameter (bundle diameter) of the harness 21. The harness passage 241P is further expanded in diameter at its outlet opening (right end), and a fitting hole 241h is formed therein to fit with a fitting shaft 242s (described later). Two annular grooves 241g are formed in the inner circumferential surface of the fitting hole 241h, spaced a predetermined distance apart and parallel to each other. A waterproof rubber ring 35 is housed in the annular groove 241g on the rear side of the opening (left side L), and a ring piece 242t formed on the outer circumferential surface of the fitting shaft 242s is fitted into the annular groove 241g on the front side of the opening (right side R).

[0047] In addition, the trunk portion 243 of the main body 241 extends to the left side L beyond the entrance-side opening (left end portion) of the harness passage 241P. An upper surface 43u of the trunk portion 243 is perpendicular to the up-down direction Z, and a left surface 43l of the trunk portion 243 is perpendicular to the left-right direction Y. An arc surface 43r is formed at the corner between the upper surface 43u and the left surface 43l. Furthermore, the left end portion of the trunk portion 243 extends toward the downward side D and is curved toward the rear side B with a predetermined bending radius. Therefore, the lower end portion of the left surface 43l of the trunk portion 243 is curved toward the rear side B. Therefore, the harness 21 is extended toward the forward side F, then bent toward the upward side U along the left surface 43l, bent toward the right side R along the arc surface 43r, and guided along the upper surface 43u into the harness passage 241P. The portion of the harness 21 that extends to the front side F is fixed to the rear end portion of the body portion 243 by a clamp 33 .

[0048] The tip portion 242 has a shape obtained by bending a cylinder into an arc (a curved pipe shape). The tip portion 242 is formed with the harness passage 242P described above. The harness passage 242P penetrates the tip portion 242 from the base end side to the tip side, and is designed so that its bending radius R1 is greater than one time the outer diameter (bundle diameter) of the harness 2. Furthermore, the harness passage 242P has an expanded diameter at its outlet opening portion (tip portion), and a fitting hole 242h that fits with the rubber tube 31 described above is formed. An annularly arranged locking claw 242f is formed on the inner circumferential surface of the fitting hole 242h. The locking claw 242f hooks into a recessed groove in the rubber tube 31, thereby preventing the rubber tube 31 from slipping out. The tip portion 242 and the rubber tube 31 may be wound and secured together with tape.

[0049] Further, the tip portion 242 is formed with a fitting shaft portion 242s extending linearly at its base end (left end portion). The fitting shaft portion 242s has an outer diameter slightly smaller than the inner diameter of the fitting hole portion 241h of the main body portion 241, and a single annular piece 242t is provided on the outer peripheral surface of the fitting shaft portion 242s. Therefore, when the fitting shaft portion 242s is inserted into the fitting hole portion 241h of the main body portion 241, the annular piece 242t of the fitting shaft portion 242s is fitted into the annular groove 241g of the fitting hole portion 241h. With this configuration, the tip portion 242 is supported so as to be rotatable about the central axis C1 of the harness passage 241P formed in the main body portion 241. The harness passage 241P of the main body 241 is formed along the left-right direction Y, and the harness passage 242P of the tip end 242 is bent in a direction perpendicular to the left-right direction Y. Therefore, the harness 21 is guided from the left-right direction Y of the vehicle body 100 to a direction perpendicular to the left-right direction Y.

[0050] The seat-side guide portion 25 is fixed to the side of the sliding seat 200 and guides a mid-portion of the harness 21 on the seat side. Specifically, it is fixed to a seat cushion 201 that constitutes the sliding seat 200 and guides a mid-portion of the harness 21 that is close to the sliding seat 200 side. The seat-side guide portion 25 is also mainly composed of a main body portion 251 and a tip portion 252, and a harness passage 251P of the main body portion 251 and a harness passage 252P of the tip portion 252 are communicated (continuously connected) to form a single harness passage.

[0051] The main body 251 has a main portion formed in a substantially cylindrical shape. The main body 251 has a trunk 253 extending upward toward the upper side U and a fixing plate 254 protruding in the front-rear direction X across the trunk 253. The fixing plate 254 has a bolt hole penetrating in the up-down direction Z, through which a bolt 25B is inserted. The fixing plate 254 is formed parallel to the front-rear direction X so as to fit along the frame of the seat cushion 201, and its tip portion is connected to the frame of the adjacent seat cushion 201. Therefore, when the sliding seat 200 moves in the front-rear direction X, the seat-side guide 25 also moves in the front-rear direction X. In this way, the seat-side guide 25 is fixed to the frame of the seat cushion 201 by the bolt 25B inserted into the bolt hole of the fixing plate 254. However, the fixing plate 25 is not limited to the frame of the seat cushion 201.

[0052] The harness passage 251P described above is also formed in the main body 251. The harness passage 251P penetrates the main body 251 from its base end (left end) to its tip end (right end), and its passage length L2 is designed to be longer than five times the outer diameter (bundle diameter) of the harness 21. Furthermore, the harness passage 251P has an enlarged diameter at its inlet opening (right end), where a fitting hole 251h is formed to fit with a fitting shaft 252s (described later). Two annular grooves 251g are formed in the inner circumferential surface of the fitting hole 251h, parallel to each other and spaced a predetermined distance apart. A waterproof rubber ring 36 is housed in the annular groove 251g on the rear side of the opening (left side L), and a ring piece 252t formed on the outer circumferential surface of the fitting shaft 252s is fitted into the annular groove 251g on the front side of the opening (right side R).

[0053] The tip portion 252 has a shape obtained by bending a cylinder into an arc (a curved pipe shape). The tip portion 252 is formed with the harness passage 252P described above. The harness passage 252P penetrates the tip portion 252 from the base end side to the tip side, and is designed so that its bending radius R2 is greater than one time the outer diameter (bundle diameter) of the harness 2. Furthermore, the harness passage 252P has an expanded diameter at its outlet opening portion (tip portion), and a fitting hole 252h that fits with the rubber tube 31 described above is formed. An annularly arranged locking claw 252f is formed on the inner circumferential surface of the fitting hole 252h. The locking claw 252f hooks into a recessed groove in the rubber tube 31, thereby preventing the rubber tube 31 from slipping out. The tip portion 252 and the rubber tube 31 may be wound and secured together with tape.

[0054] Further, the tip portion 252 is formed with a fitting shaft portion 252s extending linearly at its base end (left end portion). The fitting shaft portion 252s is formed with an outer diameter slightly smaller than the inner diameter of the fitting hole portion 251h of the main body portion 251, and a single annular piece 252t is provided on the outer peripheral surface of the fitting shaft portion 252s. Therefore, when the fitting shaft portion 252s is inserted into the fitting hole portion 251h of the main body portion 251, the annular piece 252t of the fitting shaft portion 252s is fitted into the annular groove 251g of the fitting hole portion 251h. With this configuration, the tip portion 252 is supported so as to be rotatable about the central axis C2 of the harness passage 251P formed in the main body portion 251. The harness passage 251P of the main body 251 is formed along the left-right direction Y, and the harness passage 252P of the tip end 252 is bent in a direction perpendicular to the left-right direction Y. Therefore, the harness 21 is guided in the left-right direction Y from a direction perpendicular to the left-right direction Y of the vehicle body 100.

[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 9 and 10, 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 9(a) shows a state in which the sliding seat 200 has slid to the rearmost side B, and Figure 9(b) shows a state in which the sliding seat 200 has slid to the frontmost side F. In Figure 10, the harness routing structure 20 corresponding to Figure 9(a) is represented by a two-dot chain line, and the harness routing structure 20 corresponding to Figure 9(b) is represented by a solid line.

[0057] When sliding the sliding seat 200 forward F, it is necessary to move the slider 12 forward F along the rail 11. Then, the link arm 13 attached to the slider 12 also moves forward F, and the sliding seat 200 supported by the link arm 13 also moves forward F (see arrow Sf). Note that when sliding the sliding seat 200 forward F, it is necessary to release a latch (not shown).

[0058] Furthermore, when the sliding seat 200 slides forward F, the floor-side guide portion 24 fixed to the slider 12 moves forward F (see arrow Sf). Then, the harness 21 is pulled forward F by the floor-side guide portion 24, and the bent-back portion 21a of the harness 21 follows (moves). In this way, when the sliding seat 200 slides forward F, the bent-back portion 21a of the harness 21 follows (moves) and can accommodate the movement of the sliding seat 200.

[0059] Additionally, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is slid forward F, the floor-side guide portion 24 and the seat-side guide portion 25 are at the same position (positions without misalignment) in the fore-and-aft direction X. At this time, the harness 21 is bent back from the direction toward the rear side B to the direction toward the front side F along the fore-and-aft direction X of the vehicle body 100 (see bent-back portion 21a), is guided by the floor-side guide portion 24 to the right side R of the vehicle body 100 and is guided to the upper side U (see extension portion 21b), and is guided from the direction toward the upper side U to the left side L by the seat-side guide portion 25.

[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 11 and 12. Figure 11(a) shows a state in which the sliding seat 200 has slid to the most forward side F, and Figure 11(b) shows a state in which the sliding seat 200 has slid to the most rear side B. 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.

[0061] When sliding the sliding seat 200 toward the rear side B, it is necessary to move the slider 12 toward the rear side B along the rail 11. Then, the link arm 13 attached to the slider 12 also moves toward the rear side B, and the sliding seat 200 supported by the link arm 13 also moves toward the rear side B (see arrow Sb). Note that when sliding the sliding seat 200 toward the rear side B, it is necessary to release a latch (not shown).

[0062] Furthermore, when the sliding seat 200 slides toward the rear side B, the floor-side guide portion 24 fixed to the slider 12 moves toward the rear side B (see arrow Sb). Then, the harness 21 is pushed toward the rear side B by the floor-side guide portion 24, and the bent-back portion 21a of the harness 21 follows (moves). In this way, when the sliding seat 200 slides toward the rear side B, the bent-back portion 21a of the harness 21 follows (moves) and can accommodate the movement of the sliding seat 200.

[0063] Additionally, in the harness routing structure 20 according to this embodiment, even when the sliding seat 200 is slid toward the rear side B, the floor-side guide portion 24 and the seat-side guide portion 25 are at the same position (positions without misalignment) in the fore-and-aft direction X. At this time, the harness 21 is bent back along the fore-and-aft direction X of the vehicle body 100 from the direction toward the rear side B to the direction toward the front side F (see bent-back portion 21a), is guided by the floor-side guide portion 24 to the right side R of the vehicle body 100 and is guided toward the upper side U (see extension portion 21b), and is guided by the seat-side guide portion 25 from the direction toward the upper side U to the left side L.

[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 13 and 14. Figure 13(a) shows a state in which the sliding seat 200 is deployed from the foot space A, Figure 13(b) shows a state in which the sliding seat 200 is in the middle of being stored in the foot space A, and Figure 13(c) shows a state in which the sliding seat 200 has been stored in the foot space A. 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(c) is represented by a solid line.

[0065] When storing the sliding seat 200 in the foot space A, it is necessary to pivot the link arm 13 attached to the slider 12 to the forward side F with the slider 12 moved to the rearmost side B. Then, the sliding seat 200 supported by the link arm 13 is stored in the foot space A on the forward side F (see arrow Pd). Note that when storing the sliding seat 200 in the foot space A, it is necessary to release a latch (not shown) with the seat back 202 in the folded position and pivot it toward the forward side F.

[0066] Furthermore, when the sliding seat 200 is stored in the foot space A, the seat-side guide portion 25 fixed to the seat cushion 201 is also stored in the foot space A (see arrow Pd). Then, the portion of the harness 21 extending toward the upper side U (see extension portion 21b) falls toward the front side F as the seat-side guide portion 25 moves (see arrow Pd). In this way, when the sliding seat 200 is stored in the foot space A, the extension portion 21b of the harness 21 follows (moves) and can accommodate the movement of the sliding seat 200.

[0067] Additionally, in the harness routing structure 20 according to this embodiment, when the slide seat 200 is stored in the foot space A, the floor-side guide portion 24 remains in a fixed position, but the seat-side guide portion 25 moves to the forward side F, so that the floor-side guide portion 24 and the seat-side guide portion 25 are at equal positions (no misalignment) in the up-down direction Z. At this time, the harness 21 is bent back from the direction toward the rear side B to the direction toward the forward side F along the fore-and-aft direction X of the vehicle body 100 (see bent-back portion 21a), is guided by the floor-side guide portion 24 to the right side R of the vehicle body 100, and is also guided to the forward side F (see extension portion 21b), and is guided from the direction toward the forward side F to the left side L by the seat-side guide portion 25.

[0068] Next, 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 with reference to Figures 15 and 16. Figure 15(a) shows a state in which the sliding seat 200 is stored in the foot space A, Figure 15(b) shows a state in which the sliding seat 200 is in the middle of being deployed from the foot space A, and Figure 15(c) shows a state in which the sliding seat 200 has been deployed from 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.

[0069] When the sliding seat 200 is deployed from the foot space A, the slider 12 is moved to the rearmost side B, and the link arm 13 attached to the slider 12 must be pivoted toward the upper side U. Then, the sliding seat 200 supported by the link arm 13 is deployed from the foot space A toward the upper side U (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 upper side U to engage a latch (not shown) and raise the seat back 202.

[0070] Furthermore, when the sliding seat 200 is deployed from the foot space A, the seat-side guide portion 25 fixed to the seat cushion 201 is also deployed from the foot space A (see arrow Pu). Then, the portion of the harness 21 extending toward the front side F (see extending portion 21b) rises toward the upper side U in accordance with the movement of the seat-side guide portion 25 (see arrow Pu). In this way, when the sliding seat 200 is deployed from the foot space A, the extending portion 21b of the harness 21 follows (moves) and can accommodate the movement of the sliding seat 200.

[0071] Additionally, in the harness routing structure 20 according to this embodiment, when the slide seat 200 is deployed from the foot space A, the floor-side guide portion 24 remains in a fixed position, but the seat-side guide portion 25 moves to the upper side U, so that the floor-side guide portion 24 and the seat-side guide portion 25 are at equal positions (positions without misalignment) in the fore-and-aft direction X. At this time, the harness 21 is bent back along the fore-and-aft direction X of the vehicle body 100 from the direction toward the rear side B to the direction toward the front side F (see bent-back portion 21a), is guided by the floor-side guide portion 24 to the right side R of the vehicle body 100, and is also guided to the upper side U (see extension portion 21b), and is then guided by the seat-side guide portion 25 from the direction toward the upper side U to the left side L.

[0072] As described above, the harness routing structure 20 has a rail 11 extending in the fore-and-aft direction X of the vehicle body 100, a link arm 13 attached to a slider 12 movable along the rail 11, and a pivoting movement of the link arm 13 to supply power to electrical components of the sliding seat 200 supported so as to be retractable into the foot space A. The harness routing structure 20 includes the harness 21 stretched between the vehicle body 100 and the sliding seat 200, and a floor-side guide portion 24 fixed to the side of the sliding seat 200 and guiding a floor-side intermediate portion of the harness 21. The floor-side guide portion 24 guides the harness 21, which is bent back along the fore-and-aft direction X of the vehicle body 100 from a direction toward the rear side B to a direction toward the front side F, in the left-right direction Y of the vehicle body 100 and in a direction perpendicular to the left-right direction Y, to the sliding seat 200.

[0073] 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, according to the harness routing structure 20 of the present invention, the floor-side guide portion 24 guides the harness 21, which is bent back from a direction toward the rear side B along the longitudinal direction X of the vehicle body 100 toward a direction toward the front side F, in the left-right direction Y of the vehicle body 100 and also in a direction perpendicular to the left-right direction Y, to the sliding seat 200. Therefore, when the sliding seat 200 slides in the longitudinal direction X, the bent-back portion of the harness 21 (bent portion 21a) follows (moves), and when the sliding seat 200 is stored in the foot space A, the portion of the harness 21 extended in a direction perpendicular to the left-right direction Y of the vehicle body 100 (extended portion 21b) follows (pivots) to accommodate the movement of the sliding seat 200. This makes it possible to minimize deformation (displacement) of the harness 21 and prevent local bending of the harness 21 (bending with a large curvature, i.e., sharp and sudden bending). Therefore, even when the slide seat 200 is slid in the front-rear direction X or stored in the foot space, an excessive load can be prevented from acting on the harness 21.

[0074] Furthermore, in the harness routing structure 20 according to this embodiment, the floor-side guide portion 24 has a main body portion 241 that guides the harness 21 in the left-right direction Y of the vehicle body 100, and a tip portion 242 that is attached to the outlet side opening of the main body portion 241 and guides the harness 21 in a direction perpendicular to the left-right direction Y, and the tip portion 242 is supported so as to be freely rotatable around the central axis C1 at the outlet side opening of the main body portion 241.

[0075] According to this harness routing structure 20, when the sliding seat 200 is stored in the foot space A, the tip portion 242 rotates in response to a change in the harness path caused by the movement of the sliding seat 200, thereby preventing the harness 21 from being pulled or locally bending. Also, when the sliding seat 200 is deployed from the foot space A, the tip portion 242 rotates in response to a change in the harness path caused by the movement of the sliding seat 200, thereby preventing the harness 21 from being pulled or locally bending. Therefore, it is possible to prevent an excessive load from acting on the harness 21.

[0076] In addition, in the harness routing structure 20 according to this embodiment, the rotation center of the tip portion 242 is arranged coaxially with the pivot center of the connecting portion of the link arm 13 . According to this harness routing structure 20, even if the link arm 13 pivots, the total length of the harness path is kept constant by the rotation of the tip end portion 242, so that the harness 21 can be prevented from being pulled or locally bent. Therefore, it is possible to prevent an excessive load from acting on the harness 21. It is also possible to prevent the harness 21 from becoming significantly loose.

[0077] In the harness routing structure 20 according to this embodiment, the passage length L1 of the harness passage 241P formed in the main body 241 is set to be longer than five times the outer diameter of the harness 21. According to this harness routing structure 20, even if a torsional load is applied to the portion of the harness 21 inserted into the main body 241 due to the rotation of the tip portion 242, the torsion is dispersed throughout the entire harness passage 241P. This prevents localized torsion of the harness 21. This prevents excessive load from acting on the harness 21.

[0078] In the harness routing structure 20 according to this embodiment, the bending radius R1 of the harness passage 242P at the tip end portion 242 is set to be larger than one time the outer diameter of the harness 21. According to this harness routing structure 20, even if a pulling load or a pushing load is applied to the portion of the harness 21 inserted through the tip portion 242 due to the rotation of the tip portion 242, the bending radius is restricted in accordance with the shape of the harness passage 242P. This prevents local bending of the harness 21. This prevents excessive load from acting on the harness 21.

[0079] The harness routing structure 20 according to this embodiment is also provided with a seat-side guide portion 25 that is fixed to the side of the sliding seat 200 and guides the seat-side intermediate portion of the harness 21. The seat-side guide portion 25 guides the harness 21, guided by the floor-side guide portion 24, from a direction perpendicular to the left-right direction Y of the vehicle body 100 to the left-right direction Y, and leads it to the sliding seat 200.

[0080] According to this harness routing structure 20, the seat-side guide portion 25 guides the harness 21, which is guided by the floor-side guide portion 24, from a direction perpendicular to the left-right direction Y of the vehicle body 100 toward the left-right direction Y, and leads it to the sliding seat 200. Therefore, when the sliding seat 200 is stored in the foot space A, the portion of the harness 21 (extension portion 21b) that extends in the direction perpendicular to the left-right direction Y of the vehicle body 100 follows (pivots) and can accommodate the movement of the sliding seat 200. This makes it possible to keep deformation (displacement) of the harness 21 small and prevent local bending (bending with a large curvature, that is, sudden bending with a large degree of bending) of the harness 21. Therefore, even when the sliding seat 200 is slid in the fore-aft direction X or stored in the foot space A, it is possible to prevent excessive load from being applied to the harness 21.

[0081] Furthermore, in the harness routing structure 20 according to this embodiment, the seat side guide portion 25 has a main body portion 251 that guides the harness 21 in the left-right direction Y of the vehicle body 100, and a tip portion 252 that is attached to the entrance side opening portion of the main body portion 251 and guides the harness 21 from a direction perpendicular to the left-right direction Y, and the tip portion 252 is supported so as to be freely rotatable around the central axis C2 at the entrance side opening portion of the main body portion 251.

[0082] According to this harness routing structure 20, when the sliding seat 200 is stored in the foot space A, the tip portion 252 rotates in response to a change in the harness path caused by the movement of the sliding seat 200, thereby preventing the harness 21 from being pulled or locally bending. Also, when the sliding seat 200 is deployed from the foot space A, the tip portion 252 rotates in response to a change in the harness path caused by the movement of the sliding seat 200, thereby preventing the harness 21 from being pulled or locally bending. Therefore, it is possible to prevent an excessive load from acting on the harness 21.

[0083] In addition, in the harness routing structure 20 according to this embodiment, the rotation center of the tip portion 252 is arranged coaxially with the pivot center of the connecting portion of the link arm 13 . According to this harness routing structure 20, even if the link arm 13 pivots, the total length of the harness path is kept constant by the rotation of the tip end 252, so that the harness 21 can be prevented from being pulled or locally bent. Therefore, it is possible to prevent an excessive load from acting on the harness 21. It is also possible to prevent the harness 21 from becoming significantly loose.

[0084] In the harness routing structure 20 according to this embodiment, the passage length L2 of the harness passage 251P formed in the main body 251 is set to be longer than five times the outer diameter of the harness 21. According to this harness routing structure 20, even if a torsional load is applied to the portion of the harness 21 inserted into the main body 251 due to the rotation of the tip portion 252, the torsion is dispersed throughout the entire harness passage 251P. This prevents localized torsion from occurring in the harness 21. This prevents excessive load from acting on the harness 21.

[0085] In the harness routing structure 20 according to this embodiment, the bending radius R2 of the harness passage 252P formed in the tip portion 252 is set to be larger than one time the outer diameter of the harness 21. According to this harness routing structure 20, even if a pulling load or a pushing load is applied to the portion of the harness 21 inserted through the tip portion 252 due to the rotation of the tip portion 252, the bending radius is restricted in accordance with the shape of the harness passage 252P. This prevents local bending of the harness 21. This prevents excessive load from acting on the harness 21.

[0086] Furthermore, the harness routing structure 20 according to this embodiment is provided with a vehicle body side holding portion 22 that holds the base end portion of the harness 21, and the connector 211 of the harness 21 is disposed in the vehicle body side holding portion 22. According to such a harness routing structure 20, the harness 150 routed in the vehicle body 100 and the harness 21 constituting the harness routing structure 20 can be connected by the vehicle body side holding portion 22.

[0087] Furthermore, the harness routing structure 20 according to this embodiment is provided with a seat-side holding portion 23 that holds the tip portion of the harness 21, and the connector 212 of the harness 21 is disposed in the seat-side holding portion 23. According to such a harness routing structure 20, the harness 260 routed in the sliding seat 200 and the harness 21 constituting the harness routing structure 20 can be connected by the seat-side holding portion 23.

[0088] 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.

[0089] 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 rail corresponds to rail 11, The slider corresponds to slider 12, The link arm corresponds to link arm 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 seat side holding portion corresponds to the seat side holding portion 23, The floor side guide unit corresponds to the floor side guide unit 24, The floor side main body corresponds to the main body 241, The harness passage corresponds to harness passage 241P, The floor side tip corresponds to tip 242, The harness passage corresponds to the harness passage 242P, The seat side guide portion corresponds to the seat side guide portion 25, The seat side main body corresponds to the main body 251, The harness passage corresponds to the harness passage 251P, The seat-side tip corresponds to tip 252, The harness passage corresponds to the harness passage 252P, 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.

[0090] For example, in the harness routing structure 20 disclosed herein, the tip portion 242 constituting the floor-side guide portion 24 and the tip portion 252 constituting the seat-side guide portion 25 have a shape obtained by curving a cylindrical body into an arc (curved pipe shape). However, as shown in Fig. 17, at least one of the tip portion 242 and the tip portion 252 may have a so-called trumpet shape in which the diameter gradually increases from the base end side (left end portion) toward the tip side (right end portion).

[0091] According to such a harness routing structure 20, when the slide seat 200 is stored in the foot space A, the harness 21 can pivot along the inner peripheral surfaces of the tip portion 242, etc., so that the portion of the harness 21 extending toward the upper side U (see the extending portion 21b) falls forward F (see arrow Pd). Conversely, when the slide seat 200 is deployed from the foot space A, the harness 21 can pivot along the inner peripheral surfaces of the tip portion 242, etc., so that the portion of the harness 21 extending toward the forward side F (see the extending portion 21b) rises upward U (see arrow Pu).

[0092] Furthermore, in the harness routing structure 20 disclosed herein, the harness 21 is bent back from a direction toward the rear side B to a direction toward the front side F along the fore-and-aft direction X of the vehicle body 100 (see bent back portion 21a), guided by the floor-side guide portion 24 to the right side R of the vehicle body 100 and guided in a direction perpendicular to the left-right direction Y, and guided by the seat-side guide portion 25 from the direction perpendicular to the left-right direction Y to the left side L. However, the harness 21 may also be bent back from a direction toward the front side F to a direction toward the rear side B along the fore-and-aft direction X of the vehicle body 100. Alternatively, the harness 21 may be guided by the floor-side guide portion 24 to the left side L of the vehicle body 100. Alternatively, the harness 21 may also be guided by the seat-side guide portion 25 to the right side R.

[0093] The present invention also includes the floor-side guide portion 24 constituting the harness routing structure 20 described above. That is, the floor-side guide portion 24 is the floor-side guide portion 24 of the harness routing structure 20, which has a rail 11 extending in the front-rear direction X of the vehicle body 100, a link arm 13 attached to a slider 12 movable along the rail 11, and supplies power to electrical components of the sliding seat 200 supported so as to be retractable in the foot space A by pivoting of the link arm 13, and is characterized in that it guides the harness 21 bent from one side along the front-rear direction X of the vehicle body 100 to the other side in the left-right direction Y of the vehicle body 100 and in a direction intersecting the left-right direction Y to lead it to the sliding seat 200.

[0094] This also provides the same effect as the harness routing structure 20 according to the above-described embodiment. That is, it is possible to suppress deformation (displacement) of the harness 21 to a small extent and 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, it is possible to prevent excessive load from acting on the harness 21.

[0095] Furthermore, the present invention also includes the seat-side guide portion 25 constituting the harness routing structure 20 described above. That is, the seat-side guide portion 25 is the seat-side guide portion 25 of the harness routing structure 20 that has a rail 11 extending in the front-rear direction of the vehicle body 100, has a link arm 13 attached to a slider 12 that is movable along the rail 11, and supplies power to electrical components of the sliding seat 200 that is supported so as to be retractable in the foot space A by pivoting of the link arm 13, and is characterized in that it guides the harness 21 that has been bent from a direction toward one side along the front-rear direction X of the vehicle body 100 to a direction toward the other side from a direction intersecting the left-right direction Y of the vehicle body 100 toward the left-right direction Y, and leads it to the sliding seat 200.

[0096] This also achieves the same effect as the harness routing structure 20 according to the above-described embodiment. That is, it is possible to suppress deformation (displacement) of the harness 21 to a small extent, and 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.

[0097] Finally, the harness 21 of the harness routing structure 1 disclosed in the present application has been described as a covered electric wire having a round cross section. However, it may be a so-called ribbon electric wire having a flat cross section. Alternatively, it may be a so-called flexible flat cable formed into a strip shape by sandwiching a conductive plate between insulating sheets. [Explanation of symbols]

[0098] 10...Seat support structure 11...Rail 12...Slider 13...Link arm 20...Harness wiring structure 21...Harness 22...Vehicle body side holding part 23...Seat side holding part 24...Floor side guide area 241...Main body 241P…Harness passage 242...Tip 242P…Harness passage 25...Seat side guide section 251...Main body 251P…Harness passage 252...Tip 252P…Harness passage 211...Connector 212...Connector 100...Body 101...Floor panel 200...Slide seat 201...Seat cushion A...Foot space

Claims

1. The vehicle has a rail extending in the front-rear direction of the vehicle body, and a link arm is attached to a slider that is movable along the rail, A harness wiring structure that supplies power to electrical components of a sliding seat that is supported so as to be retractable into a foot space by pivoting of the link arm, a harness that is stretched between the vehicle body and the sliding seat; a floor-side guide portion fixed to the side of the slide seat and guiding a floor-side intermediate portion of the harness; The floor side guide section has: a main body portion that guides the harness, which is bent from one side toward the other side along the front-rear direction of the vehicle body, in the left-right direction of the vehicle body; the main body is fixed to the slider, The harness is bent from one side to the other side along the front-rear direction of the vehicle body, The main body guides the link arm in the left-right direction of the vehicle body along the axis of the pivot center of the link arm, and guides the link arm in a direction intersecting the left-right direction to the slide seat. Harness routing structure.

2. The floor side guide unit is a floor-side main body portion that guides the harness in the left-right direction of the vehicle body; a floor-side tip portion attached to an outlet-side opening of the floor-side main body portion and guiding the harness in a direction intersecting the left-right direction; The floor-side tip portion is supported rotatably around a central axis at the outlet-side opening portion of the floor-side main body portion. The harness routing structure according to claim 1 .

3. The rotation center of the floor-side tip portion 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 length of the harness passage formed in the floor-side main body portion is longer than five times the outer diameter of the harness. The harness routing structure according to claim 2 or 3.

5. The bending radius of the harness passage formed at the floor side tip is made larger than one time the outer diameter of the harness. The harness routing structure according to any one of claims 2 to 4.

6. A seat-side guide portion is provided that is fixed to the side of the slide seat and guides a middle portion of the harness on the seat side, The seat-side guide portion guides the harness guided by the floor-side guide portion from a direction intersecting the left-right direction of the vehicle body to the left-right direction, and leads the harness to the slide seat. The harness routing structure according to any one of claims 1 to 5.

7. The sheet side guide portion is a seat-side main body portion that guides the harness in the left-right direction of the vehicle body; a seat-side tip portion attached to an inlet-side opening of the seat-side main body portion and guiding the harness from a direction intersecting the left-right direction; The seat-side tip portion is supported rotatably around a central axis at the inlet-side opening portion of the seat-side main body portion. The harness routing structure according to claim 6.

8. The rotation center of the seat-side tip end is arranged coaxially with the pivot center of the connecting portion of the link arm. The harness routing structure according to claim 7.

9. The length of the harness passage formed in the seat-side main body portion is longer than five times the outer diameter of the harness. The harness routing structure according to claim 7 or 8.

10. The bending radius of the harness passage formed at the end portion on the seat side is set to be larger than one time the outer diameter of the harness. The harness routing structure according to any one of claims 7 to 9.

11. a vehicle body side holding portion that holds a base end portion of the harness; The harness connector is disposed in the vehicle body side holding portion. The harness routing structure according to any one of claims 1 to 10.

12. A seat-side holding portion is provided to hold the tip end portion of the harness, The harness connector is disposed in 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 floor-side guide portion of a harness routing structure has a rail extending in the front-rear direction of a vehicle body, a link arm attached to a slider that is movable along the rail, and the link arm pivots to supply power to electrical components of a sliding seat that is supported so as to be retractable into a foot space, a main body portion that guides the harness bent from one side toward the other side along the front-rear direction of the vehicle body in the left-right direction of the vehicle body; The main body is fixed to the slider, The harness is bent from one side to the other along the longitudinal direction of the vehicle body, and is guided in the left-right direction of the vehicle body along the axis of the pivot center of the link arm, and is guided in a direction intersecting the left-right direction to the slide seat. Floor side guide area.

15. A seat-side guide portion of a harness routing structure has a rail extending in the front-rear direction of a vehicle body, a link arm attached to a slider that is movable along the rail, and the seat-side guide portion supplies power to electrical components of a sliding seat that is supported so as to be retractable into a foot space by pivotal movement of the link arm, A main body portion fixed to the slider of a floor-side guide portion fixed to the side of the slide seat and guiding a floor-side intermediate portion of the harness is arranged to guide the harness bent from one side toward the other side along the longitudinal direction of the vehicle body in the left-right direction of the vehicle body along the axis of the pivot center of the link arm, and guides the harness guided in a direction intersecting the left-right direction from the direction intersecting the left-right direction of the vehicle body to the left-right direction, leading to the slide seat. Seat side guide section.

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