JP2023083767A - Harness arrangement structure of slide seat - Google Patents

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 slider 12 that moves along a longitudinal direction X together with a slide seat 200 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 along the longitudinal direction X from a vehicle body-side holding part 22 to a rear side B, then bent back to a front side F, and bent in a direction of getting close to the slide seat 200 to lead to a seat-side holding part 23.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a harness wiring structure for supplying electric power to electrical components incorporated in a slide seat.

Conventionally, it is a slide seat that slides in the longitudinal direction of the vehicle body, and by pivoting forward with the seat back lying down, the slide seat can be stored in the foot space, so-called tilt down. There is one that does (see Patent Document 1). Such a slide seat incorporates electrical components such as a seat belt reminder. Therefore, it is necessary to supply power to these electrical components from the vehicle body.

By the way, when the slide seat is slid in the front-rear direction, the harness that spans between the vehicle body and the slide seat deforms as the slide seat moves. Also, when the slide seat is stored in the foot space, the harness is deformed as the slide seat moves. As a result, the harness may be locally bent (a bend with a large curvature, that is, a sharp bend with a sharp degree of bending), and an excessive load may be applied to the harness.

Japanese Patent Application Laid-Open No. 2020-066248

SUMMARY OF THE INVENTION An object of the present invention is to provide a harness routing structure capable of preventing an excessive load from being applied to a harness even when the slide seat is slid in the front-rear direction or stored in the foot space. .

The invention of the present application has a rail extending in the longitudinal direction of a vehicle body, a slider that is movable along the rail, and a link arm attached to the slider that is supported so as to be stored in a foot space by pivoting the link arm. A harness routing structure for supplying power to electrical components of a seat, comprising a harness that is laid between the vehicle body and the slide seat, and a base end portion of the harness that is fixed to the vehicle body side and held. a vehicle body-side holding portion, a seat-side holding portion fixed to the slide seat side to hold the leading end portion of the harness, and a harness regulation portion fixed to the slide seat side to regulate the harness path of the harness. is provided, and the harness restricting portion is extended from the vehicle body side holding portion to one side along the longitudinal direction and then bent back to the other side and bent in a direction approaching the slide seat to the seat side It is characterized in that the harness path is regulated along the intermediate portion of the harness reaching the holding portion.

The invention of the present application also includes a harness restricting portion that constitutes the above-described harness routing structure. That is, the slide seat has rails extending in the longitudinal direction of the vehicle body, a link arm is attached to a slider that is movable along the rail, and the slide seat is supported so as to be stored in the foot space by the pivotal movement of the link arm. A harness regulating portion of a harness routing structure for supplying electric power to an electrical component, the harness regulating portion extending in the front-rear direction from a vehicle body side holding portion that holds a base end portion of a harness that is bridged between the vehicle body and the slide seat. and then extended to one side, bent back to the other side, bent in a direction approaching the slide seat, and brought into contact with the intermediate portion of the harness leading to the seat-side holding portion that holds the leading end portion of the harness. A harness restrictor for restricting the harness path shall also be included.

According to these inventions, even if the slide seat is slid in the longitudinal direction or stored in the foot space, it is possible to prevent an excessive load from acting on the harness.
More specifically, in the harness routing structure and the harness regulating portion according to the present invention, the harness regulating portion is extended from the vehicle body side holding portion to one side in the longitudinal direction and then bent back to the other side and attached to the slide seat. It is bent in the approaching direction (upward direction when the slide seat is unfolded from the foot space) and contacts the intermediate portion of the harness leading to the seat-side holding portion to regulate the harness path. Therefore, the deformation (displacement) of the harness is suppressed at the intermediate portion of the harness that is separated from both the vehicle body side holding portion and the seat side holding portion, and local bending of the harness (bending with a large curvature, that is, bending degree) It is possible to prevent sharp and sharp bending) from occurring. Therefore, even if the slide seat is slid in the longitudinal direction or stored in the foot space, it is possible to prevent an excessive load from being applied to the harness.

As an aspect of the present invention, the harness restricting portion is provided along a portion of the harness that is bent from the direction toward the other side of the harness toward the direction of approaching the slide seat in a state in which the slide seat is deployed from the foot space. A first bending restricting portion may be provided to restrict the bending shape of the portion.

According to this invention, in a state in which the slide seat is unfolded from the foot space, the harness is wound around the first bending restricting portion and bent along the first bending restricting portion. Therefore, it is possible to prevent the portion of the harness bent from the direction toward the other side toward the direction closer to the slide seat from becoming smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness.

Further, as an aspect of the present invention, the first bending restricting portion is an arcuate surface formed on the harness restricting portion, and the central axis of the arcuate surface is coaxial with the pivot center of the connecting portion of the link arm. may be placed.

According to this invention, it is possible to prevent the harness from being pulled and strained when it follows the pivoting motion of the link arm and wraps around the arcuate surface that is the first bending restricting portion. Therefore, it is possible to prevent an excessive load from acting on the harness. In addition, it is possible to prevent the harness from being greatly loosened when it is unwound from the circular arc surface, which is the first bending restricting portion, following the pivotal movement of the link arm.

Further, as an aspect of the present invention, the seat-side holding portion is provided along a portion of the harness that is bent in the vicinity of the leading end of the harness when the slide seat is stored in the foot space or is deployed from the foot space. A second bending restricting portion may be provided to restrict the bending shape of the portion.

According to this invention, in a state in which the slide seat is stored in the foot space or a state in which the slide seat is deployed from the foot space, the harness is wound around the second bending restricting portion and bent along the second bending restricting portion. Therefore, it is possible to prevent the bent portion of the harness in the vicinity of the tip portion from having a radius smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness.

Further, as an aspect of the present invention, the second bending restricting portion is an arcuate surface formed on the seat-side holding portion, and the central axis of the arcuate surface is coaxial with the pivot center of the connecting portion of the link arm. may be placed in

According to the present invention, when the harness follows the pivotal movement of the link arm and winds around the arcuate surface that is the second bending restricting portion, it is possible to prevent the harness from being pulled and strained. Therefore, it is possible to prevent an excessive load from acting on the harness. Further, it is possible to prevent the harness from being greatly loosened when it is unwound from the arcuate surface that is the second bending restricting portion following the pivoting motion of the link arm.

Further, as an aspect of the present invention, the harness restricting portion includes a portion of the harness that is bent back from the direction toward the one side to the direction toward the other side in a state where the slide seat is slid to the one side. A third bending restricting portion may be provided that is in contact with and restricts the bending shape of the portion.

According to this invention, in a state in which the slide seat is slid to one side, the harness is wound around the third bending restricting portion and bent back along the third bending restricting portion. Therefore, it is possible to prevent the portion of the harness that is bent back from the direction toward the one side to the direction toward the other side from becoming smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness.

Further, as an aspect of the present invention, the harness restricting portion may be provided with an extension restricting portion that restricts a harness path of the portion of the harness that is extended to the other side.
According to this invention, it is 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. Therefore, it is possible to prevent the middle portion of the harness from hanging down due to gravity. Therefore, it is possible to prevent the hanging harness from interfering with surrounding members.

Further, as a mode of the present invention, the extension restricting portion may be composed of a pair of contact surfaces arranged so as to sandwich the harness.
According to this invention, it is possible to suppress twisting at the intermediate portion of the harness spaced apart from both the vehicle body side holding portion and the seat side holding portion. Therefore, it is possible to prevent the harness from deforming into an unintended shape. Therefore, it is possible to prevent the harness deformed into an unintended shape from interfering with surrounding members.

Further, as an aspect of the present invention, the harness connector 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 the connector is held by the vehicle-body-side holding portion, it is possible to connect the harness routed to the vehicle body and the harness that constitutes the harness wiring structure by the vehicle-body-side holding portion. Further, when the connector is held by the seat-side holding portion, it is possible to connect the harness routed to the slide seat and the harness that constitutes the harness routing structure by the seat-side holding portion. Furthermore, when the connector is held by the vehicle body side holding portion and the seat side holding portion, it is possible to change the specification of the harness that is laid between the vehicle body and the slide seat. For example, it is possible to apply the flexible flat cable only to the harness that spans between the vehicle body and the slide seat.

Further, as an 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 slide seat.
According to this invention, the harness can be accommodated in the gap between the floor panel and the seat cushion. Therefore, it is possible to improve the appearance by making the harness invisible to the person sitting on the slide seat and the surrounding people.

According to the invention of the present application, even if the slide seat is slid in the front-rear direction or stored in the foot space, it is possible to prevent an excessive load from being applied to the harness.

1 is a perspective view of a seat support structure; FIG. The perspective view of harness routing structure. The side view of harness routing structure. FIG. 4 is an enlarged perspective view of the seat-side holding portion; FIG. 4 is an enlarged side view of the seat-side holding portion; FIG. 4 is an enlarged perspective view of a harness restricting portion; The enlarged side view of a harness control part. FIG. 5 is an explanatory view showing the operation mode of the seat support structure when the slide seat is slid forward; FIG. 5 is an explanatory view showing the operating mode of the harness routing structure when the slide seat is slid forward; FIG. 5 is an explanatory view showing the operation mode of the seat support structure when the slide seat is slid rearward; FIG. 5 is an explanatory view showing the operating mode of the harness routing structure when the slide seat is slid rearward; FIG. 5 is an explanatory view showing the operation mode of the seat support structure when the slide seat is stored in the foot space; FIG. 5 is an explanatory view showing the operation mode of the harness routing structure when the slide seat is stored in the foot space; FIG. 5 is an explanatory view showing the operation mode of the seat support structure when the slide seat is deployed from the foot space; FIG. 5 is an explanatory view showing the operating mode of the harness routing structure when the slide seat is deployed from the foot space; The side view of the harness wiring structure which concerns on other embodiment.

An embodiment of the invention will be described in detail with reference to the drawings.
In the present application, all drawings show the direction 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. An arrow U indicates the upper side of the vehicle body, and an arrow D indicates the lower side of the vehicle body. In addition, in the present application, X is the front-rear direction, Y is the left-right direction, and Z is the up-down direction.

FIG. 1 is a perspective view of a 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 seat-side holding portion 23, and FIG. 5 is an enlarged side view of the seat-side holding portion 23. As shown in FIG. 6 is an enlarged perspective view of the harness restricting portion 24, and FIG. 7 is an enlarged side view of the harness restricting portion 24. As shown in FIG. In FIG. 1, the slide seat 200 is represented by a two-dot chain line so that the seat support structure 10 and the harness wiring structure 20 can be seen. In FIG. 2, the slider 12 constituting the seat support structure 10 and the stay 24S for fixing the harness restricting portion 24 to the slider 12 are indicated by two-dot chain lines.

8 is an explanatory view showing the operation mode of the seat support structure 10 when the slide seat 200 is slid forward F, and FIG. 9 is a harness routing structure when the slide seat 200 is slid forward F. 20 is an explanatory diagram showing operation modes of No. 20. FIG. 10A and 10B are explanatory diagrams showing an operation mode of the seat support structure 10 when the slide seat 200 is slid to the rear side B, and FIGS. It is explanatory drawing which shows an operation|movement aspect. 8 and 10, the rail 11 and the like on the left side L are omitted so that the harness routing structure 20 can be seen. In FIGS. 9 and 11, not only the rail 11 on the left side L but also the rail 11 on the right side R are omitted, and the two-dot chain line and the solid line show before and after the operation.

Further, FIG. 12 is an explanatory view showing the operation mode of the seat support structure 10 when the slide seat 200 is stored in the foot space A, and FIG. 13 is a harness routing structure when the slide seat 200 is stored in the foot space A. 20 is an explanatory diagram showing operation modes of No. 20. FIG. 14A and 14B are explanatory diagrams showing the operation mode of the seat support structure 10 when the slide seat 200 is deployed from the foot space A, and FIG. It is explanatory drawing which shows an operation|movement aspect. 12 and 14, the rail 11 and the like on the left side L are omitted so that the harness routing structure 20 can be seen. In FIGS. 13 and 15, not only the left side L but also the right side R rail 11 and the like are omitted, and the before and after operations are indicated by two-dot chain lines and solid lines.

As shown in FIG. 1 , vehicle body 100 has floor panel 101 . A vehicle body 100 is provided with a seat support structure 10 that supports a slide seat 200 . A seat support structure 10 according to this embodiment has a pair of rails 11 , a pair of sliders 12 , and four link arms 13 .

The rail 11 extends along the longitudinal direction X of the vehicle body 100 . Each rail 11 is arranged in parallel at a predetermined interval and fixed to a floor panel 101 forming a vehicle body 100 . A track groove 11r is formed along the front-rear direction X in the upper surface portion of each rail 11. As shown in FIG.

The slider 12 is supported while being fitted in the track groove 11 r of the rail 11 . Therefore, each slider 12 is movable along the rail 11 (see arrow S). A through-hole 12h extending in the left-right direction Y is formed in the front end portion and the rear end portion of each slider 12. As shown in FIG.

The link arm 13 has a connecting shaft 131 that protrudes in the left-right direction Y from a side portion on the base end side thereof. The link arm 13 is pivotably connected to the slider 12 by inserting the connecting shaft 131 into the through hole 12h formed in the slider 12 . Therefore, each link arm 13 can pivot about the connecting shaft 131 in a range of approximately 90 degrees from the front side F to the upper side U (see arrow P).

The link arm 13 also has a connecting shaft 132 that protrudes in the left-right direction Y from the side surface portion on the tip side thereof. The link arm 13 is pivotably connected to the seat cushion 201 by inserting the connecting shaft 132 into the through hole 20h formed in 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 with the connecting shaft 132 as the pivot center (see FIGS. 12 and 14). .

With such a configuration, the seat support structure 10 enables the slide seat 200 to slide in the longitudinal direction X of the vehicle body 100 by moving the slider 12 along the rails 11 . Further, the seat support structure 10 enables the slide seat 200 to be stored in the foot space A by pivoting the link arm 13 attached to the slider 12 . In the seat support structure 10 according to the present embodiment, the slide seat 200 is moved into the foot space A by releasing a latch (not shown) with the seat back 202 laid down and pivoting it toward the front side F. configured for storage.

As shown in FIG. 1 , the seat support structure 10 is provided with a harness wiring structure 20 that supplies power to electrical components incorporated in the slide 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 restricting portion 24 . These members will be described in detail below with reference to FIGS. 2 to 7. FIG.

The harness 21 is stretched between the vehicle body 100 and the slide seat 200 . The harness 21 is configured by laminating a plurality of flexible flat cables. Also, the harness 21 has a connector 211 attached to its proximal end portion for accommodating terminal metal fittings fastened to each conductive plate. Further, a connector 212 is attached to the tip portion thereof to accommodate the terminal metal fittings fastened to each conductive plate.

The harness 21 is extended from the vehicle body side holding portion 22 to the rear side B along the longitudinal direction X, and then bent back toward the front side F and bent in a direction approaching the slide seat 200 to reach the seat side holding portion 23 . there is The harness 21 is bent about a central axis C1 along the left-right direction Y and described later, and is bent back about a central axis C3 along the left-right direction Y and described later in a predetermined state. Since the flexible flat cable that constitutes the harness 21 is formed by sandwiching an electrically conductive plate between insulating sheet materials to form a belt-like shape, it has high flexibility in the thickness direction. be able to.

The vehicle body side holding portion 22 is fixed to the vehicle body 100 side and holds the base end portion of the harness 21 . The vehicle body side holding portion 22 is mainly configured by a connector holder 220, and the connector 211 described above is accommodated in the connector holder 220. As shown in FIG. A connector 151 of a harness 150 routed to the vehicle body 100 is coupled (connected) to the connector 211 . As a result, the harness 150 routed on the vehicle body 100 and the harness 21 forming the harness routing structure 20 are electrically connected. The harness 150 wired to the vehicle body 100 is a bundle of so-called covered electric wires having a round cross-sectional shape.

Further, the connector holder 220 has a main body portion 221 and a fixing plate portion 222 extending to both left and right sides with the main body portion 221 interposed therebetween. The body portion 221 is provided with an opening at the upper end portion of its front surface, and the connector 211 is accommodated in this opening. Therefore, the harness 21 is guided from the connector 211 to the lower side D through the inside of the body portion 221 and extends toward the rear side B from the slit-shaped opening 22h provided in the rear surface of the body portion 221 . The connector holder 220 is fixed to the floor panel 101 forming the vehicle body 100 by bolts 22B inserted through the fixing plate portion 222. As shown in FIG. However, it is not limited to the floor panel 101 .

The seat side holding portion 23 is fixed to the side of the slide seat 200 and holds the leading end 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 accommodated in the connector holder 230. As shown in FIG. A connector 252 of a harness 250 wired to the slide seat 200 is coupled (connected) to the connector 212 . As a result, the harness 250 routed on the slide seat 200 and the harness 21 forming the harness routing structure 20 are electrically connected. The harness 250 routed on the slide sheet 200 is a bundle of so-called coated electric wires having a round cross-sectional shape.

Further, the connector holder 230 has a main body portion 231 and a fixing plate portion 232 extending to both left and right sides with the main body portion 231 interposed therebetween. The body portion 231 is provided with an opening at the upper end portion of its rear surface, and the connector 212 is accommodated in this opening. Therefore, the harness 21 is guided from the connector 212 to the front side F through the inner side of the main body portion 231 and extends downward D from the slit-shaped opening 23h provided on the lower surface of the main body portion 231 . Connector holder 230 is fixed to seat cushion 201 constituting slide seat 200 by bolt 23B inserted through fixing plate portion 232 . However, it is not limited to the seat cushion 201 .

Further, the connector holder 230 has a stepped portion 233 formed at the front end portion of the main body portion 231, and the lower plate of the stepped portion 233 is formed with the aforementioned opening hole 23h. A front plate 231f of the main body 231 extends downward D from the rear edge portion of the opening 23h. A lower plate 231d is arranged perpendicular to the front plate 231f. A bending restricting portion 234 is provided at the corner portion of the front plate 231f and the lower plate 231d of the main body portion 231 . The bending restricting portion 234 is an arcuate surface 234s centered on the central axis C2 parallel to the left-right direction Y, and the harness 21 winds around it in a predetermined state. The central axis C2 is arranged coaxially with respect to the central line of the connecting shaft 132 of the link arm 13 .

The harness restricting portion 24 is fixed to the side of the slide seat 200 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 respective restricting portions (bending restricting portions 244, 245 and an extension restricting portion 246) for restricting the harness path of the harness 21. there is In addition, each restricting part has an effect independently, and at least one should just be provided.

Also, the harness guide 240 has a lower main body portion 241 and an upper main body portion 242 slightly deviated to the front side F on the upper side U of the lower main body portion 241 . The lower body portion 241 is provided with an opening at the front left end thereof, and the stay 24S is inserted into this opening (see FIG. 2). The stay 24S extends to the right side R and is then bent parallel to the front-rear direction X, and its tip end portion is connected to the adjacent slider 12 . Therefore, when the slider 12 moves in the front-rear direction X, the harness guide 240 also moves in the front-rear direction X. As shown in FIG. The harness guide 240 is fixed to the slider 12 by a bolt 24B that is inserted through the tip end portion of the stay 24S. However, it is not limited to the slider 12 .

Further, the harness guide 240 has a stepped portion 243 formed at the boundary between the lower main body portion 241 and the upper main body portion 242, and a through groove 24g passing through the stepped portion 243 in the front-rear direction X is formed. An upper plate 241u of the lower body portion 241 extends toward the rear side B from the lower edge of the through groove 24g on the inlet side. A lower plate 241d is arranged parallel to the upper plate 241u. A bending restricting portion 244 is provided between the rear end portion of the upper plate 241u and the rear end portion of the lower plate 241d in the lower body portion 241 . The bending restricting portion 244 is an arcuate surface 244s centered on a central axis C3 parallel to the left-right direction Y, and the harness 21 winds around it in a predetermined state.

In addition, the harness guide 240 is formed with a through groove 24g penetrating in the front-rear direction X in the stepped portion 243, as described above. A lower plate 242d of the upper body portion 242 extends toward the front side F from the upper edge portion of the through groove 24g formed in the stepped portion 243 on the outlet side. A front plate 242f is arranged perpendicular to the lower plate 242d. A bending restricting portion 245 is provided at a corner portion between the lower plate 242d and the front plate 242f in the upper body portion 242. As shown in FIG. The bending restricting portion 245 is an arcuate surface 245s centered on the central axis C1 parallel to the left-right direction Y, and the harness 21 winds around it in a predetermined state. Note that the central axis C1 is arranged coaxially with respect to the center line of the connecting shaft 131 of the link arm 13 .

By the way, a portion of the harness 21 extending to the front side F is inserted through the stepped portion 243 formed at the boundary portion between the lower main body portion 241 and the upper main body portion 242 . As a result, the harness path of the portion of the harness 21 that extends to the front side F can be restricted. Therefore, it can be said that the harness restricting portion 24 is provided with the extension restricting portion 246 that restricts the harness path of the portion of the harness 21 that extends forward F. Also, the harness 21 passes through the through groove 24 g formed in the stepped portion 243 . The through groove 24g is formed slightly wider than the thickness of the harness 21, and the harness path of the harness 21 is restricted by the contact surface 246s on the lower side D and the contact surface 246s on the upper side U. Therefore, it can be said that the extension restricting portion 246 is composed of a pair of contact surfaces 246s, 246s arranged so as to sandwich the harness 21 therebetween.

With such a configuration, the harness routing structure 20 can appropriately restrict the harness path both when the slide seat 200 is slid forward F and when slid rearward B. As shown in FIG. In addition, the harness routing structure 20 can appropriately regulate the harness path when the slide seat 200 is stored in the foot space A and when it is deployed from the foot space A. An operation mode of the seat support structure 10 and an operation mode of the harness wiring structure 20 will be described below.

First, the operating mode of the seat support structure 10 when the slide seat 200 is slid to the front side F and the operating mode of the harness routing structure 20 at that time will be described with reference to FIGS. 8 and 9 . 8(a) shows a state in which the slide seat 200 is slid to the rearmost side B, and FIG. 8(b) shows a state in which the slide seat 200 is slid to the front side F. FIG. In FIG. 9, the harness wiring structure 20 corresponding to FIG. 8(a) is represented by a two-dot chain line, and the harness wiring structure 20 corresponding to FIG. 8(b) is represented by a solid line.

When sliding the slide seat 200 to the front side F, it is necessary to move the slider 12 to the front side F along the rail 11 . Then, the link arm 13 attached to the slider 12 is also moved forward F, and the slide seat 200 supported by the link arm 13 is also moved forward F (see arrow Sf). In addition, when sliding the slide seat 200 to the front side F, it is necessary to release a latch (not shown).

Further, when the slide seat 200 is slid forward F, the harness restricting portion 24 moves forward F together with the slider 12 (see arrow Sf). Then, the harness restricting portion 24 is separated from the bent back portion 21 a of the harness 21 and comes close to the front of the vehicle body side holding portion 22 . In this way, when the slide seat 200 is slid to the frontmost side F, the harness 21 is wrapped around the arc surface 245 s which is the bend restricting portion 245 of the harness restricting portion 24 . Then, the upper plate 241 u and the lower plate 241 d of the lower body portion 241 and the lower plate 242 d and the front plate 242 f of the upper body portion 242 are in contact with the harness 21 .

In addition, in the harness routing structure 20 according to the present embodiment, even if the slide seat 200 is slid forward F, the front plate 242 f of the upper main body portion 242 in the harness restricting portion 24 and the main body in the seat side holding portion 23 The front plate 231f of the portion 231 is at the same position in the front-rear direction X (position without deviation). Therefore, the portion of the harness 21 that extends toward the upper side U has a lower end portion that contacts the front plate 242f of the harness restricting portion 24, and an upper end portion that contacts the front plate 231f of the seat side holding portion 23. It will be in a state of being along.

Next, the operation mode of the seat support structure 10 when the slide seat 200 is slid to the rear side B and the operation mode of the harness wiring structure 20 at that time will be described with reference to FIGS. 10 and 11. FIG. FIG. 10(a) shows a state in which the slide seat 200 is slid to the frontmost side F, and FIG. 10(b) shows a state in which the slide seat 200 is slid to the rearmost side B. FIG. In FIG. 11, the harness wiring structure 20 corresponding to FIG. 10(a) is indicated by a two-dot chain line, and the harness wiring structure 20 corresponding to FIG. 10(b) is indicated by a solid line.

When sliding the slide seat 200 to the rear side B, it is necessary to move the slider 12 to the rear side B along the rail 11 . Then, the link arm 13 attached to the slider 12 is also moved to the rear side B, and the slide seat 200 supported by the link arm 13 is also moved to the rear side B (see arrow Sb). In addition, when sliding the slide seat 200 to the rear side B, it is also necessary to release a latch (not shown).

Further, when the slide seat 200 is slid to the rear side B, the harness restricting portion 24 moves to the rear side B together with the slider 12 (see arrow Sb). As a result, the harness restricting portion 24 moves away from the vehicle-body-side holding portion 22 and approaches the bent portion 21 a of the harness 21 until it abuts thereon. In this way, when the slide seat 200 is slid to the rearmost side B, the harness 21 is wrapped around not only the arc surface 245s, which is the bending restricting portion 245, but also the arc surface 244s, which is the bending restricting portion 244. becomes. Then, the upper plate 241 u and the lower plate 241 d of the lower body portion 241 and the lower plate 242 d and the front plate 242 f of the upper body portion 242 are in contact with the harness 21 .

In addition, in the harness routing structure 20 according to the present embodiment, even if the slide seat 200 is slid to the rear side B, the front plate 242 f of the upper main body portion 242 in the harness restricting portion 24 and the main body in the seat side holding portion 23 The front plate 231f of the portion 231 is at the same position in the front-rear direction X (position without deviation). Therefore, the portion of the harness 21 that extends toward the upper side U has a lower end portion that contacts the front plate 242f of the harness restricting portion 24, and an upper end portion that contacts the front plate 231f of the seat side holding portion 23. It will be in a state of being along.

12 and 13, the operation mode of the seat support structure 10 when the slide seat 200 is stored in the foot space A and the operation mode of the harness wiring structure 20 at that time will be described. 12(a) shows a state in which the slide seat 200 is unfolded from the foot space A, FIG. 12(b) shows a state in the middle of retracting the slide seat 200 into the foot space A, and FIG. , the state in which the slide seat 200 is stored in the foot space A is shown. In FIG. 13, the harness wiring structure 20 corresponding to FIG. 12(a) is indicated by a two-dot chain line, and the harness wiring structure 20 corresponding to FIG. 12(c) is indicated by a solid line.

When the slide seat 200 is stored in the foot space A, it is necessary to move the slider 12 to the rearmost side B and pivot the link arm 13 attached to the slider 12 to the front side F. Then, the slide seat 200 supported by the link arm 13 is stored in the foot space A on the front side F (see arrow Pd). When the slide seat 200 is stored in the foot space A, it is necessary to release a latch (not shown) while the seat back 202 is laid down, and pivot the slide seat 200 forward.

When the slide seat 200 is stored in the foot space A, the portion of the harness 21 that extends upward U folds forward F together with the link arm 13 (see arrow Pd). Then, the bending angle gradually increases from the state in which the harness 21 is wrapped around the arc surface 245s, which is the bending restricting portion 245 of the harness restricting portion 24, and is bent. 234 is gradually wrapped around the circular arc surface 234s and bent. In this way, when the slide seat 200 is stored in the foot space A, the harness 21 is unwound from the arc surface 245s that is the bending restricting portion 245, and is newly wound around the arc surface 234s that is the bending restricting portion 234. state. Also, the harness 21 is wrapped around the arc surface 244 s that is the bending restricting portion 244 . An upper plate 241 u and a lower plate 241 d of the lower body portion 241 and a lower plate 242 d of the upper body portion 242 are in contact with the harness 21 .

In addition, in the harness routing structure 20 according to the present embodiment, when the slide seat 200 is stored in the foot space A, the lower plate 242d of the upper main body portion 242 in the harness restricting portion 24 and the main body portion 231 in the seat side holding portion 23 are separated. The lower plate 231d of 1 is at a position equal to the vertical direction Z (a position without deviation). Therefore, the portion of the harness 21 that extends toward the front side F is in contact with the lower plate 242d of the harness regulating portion 24 at its rear end portion, and is attached to the lower plate 231d of the seat side holding portion 23 at its front end portion. It will be in a state of being along.

Next, the operating mode of the seat support structure 10 when the slide seat 200 is deployed from the foot space A and the operating mode of the harness routing structure 20 at that time will be described with reference to FIGS. 14 and 15. FIG. 14(a) shows a state in which the slide seat 200 is stored in the foot space A, FIG. 14(b) shows a state in the middle of unfolding the slide seat 200 from the foot space A, and FIG. , the state in which the slide seat 200 is unfolded from the foot space A is shown. In FIG. 15, the harness wiring structure 20 corresponding to FIG. 14(a) is indicated by a two-dot chain line, and the harness wiring structure 20 corresponding to FIG. 14(c) is indicated by a solid line.

When the slide seat 200 is deployed from the foot space A, the slider 12 must be moved to the rearmost side B, and the link arm 13 attached to the slider 12 must be pivoted upward U. Then, the slide seat 200 supported by the link arm 13 is deployed from the foot space A upward U (see arrow Pu). When the slide seat 200 is deployed from the foot space A, it is necessary to pivot the slide seat 200 upward U to engage a latch (not shown) to raise the seat back 202 .

Further, when the slide seat 200 is deployed from the foot space A, the portion of the harness 21 extending forward F stands up upward U together with the link arm 13 (see arrow Pu). Then, the bending angle gradually increases from the state in which the harness 21 is bent around the arcuate surface 234s that is the bending restricting portion 234 of the seat side holding portion 23, and at the same time, the harness 21 reaches the bending restricting portion of the harness restricting portion 24. It gradually wraps around the circular arc surface 245s of 245 and is bent. In this way, in the state in which the slide seat 200 is deployed from the foot space A, the harness 21 is unwound from the arc surface 234s, which is the bending restricting portion 234, and is newly wound around the arc surface 245s, which is the bending restricting portion 245. state. Also, the harness 21 is wrapped around the arc surface 244 s that is the bending restricting portion 244 . An upper plate 241 u and a lower plate 241 d of the lower body portion 241 and a lower plate 242 d and a front plate 242 f of the upper body portion 242 are in contact with the harness 21 .

In addition, in the harness routing structure 20 according to the present embodiment, when the slide seat 200 is unfolded from the foot space A, the front plate 242f of the upper main body portion 242 of the harness restricting portion 24 and the main body portion 231 of the seat side holding portion 23 are separated. The front plate 231f of is positioned at the same position in the front-rear direction X (position without deviation). Therefore, the portion of the harness 21 that extends toward the upper side U has a lower end portion that contacts the front plate 242f of the harness restricting portion 24, and an upper end portion that contacts the front plate 231f of the seat side holding portion 23. It will be in a state of being along.

As described above, the harness routing structure 20 has the rails 11 extending in the longitudinal direction X of the vehicle body 100, the link arms 13 are attached to the sliders 12 that are movable along the rails 11, and the link arms 13 are pivoted. Electric power is supplied to the electrical components of the slide seat 200 that are supported in the foot space A by the movement. The harness routing structure 20 includes a harness 21 that spans between the vehicle body 100 and the slide seat 200, a vehicle body side holding portion 22 that is fixed to the floor panel 101 of the vehicle body 100 and holds the base end portion of the harness 21, A seat-side holding portion 23 fixed to the seat cushion 201 of the slide seat 200 to hold the leading end portion of the harness 21 and a slider 12 moving along the longitudinal direction X together with the slide seat 200 to guide the harness path of the harness 21. A harness regulating portion 24 for regulating is provided. The harness restricting portion 24 is extended from the vehicle body side holding portion 22 to the rear side B along the longitudinal direction X, and then bent back toward the front side F and bent in a direction approaching the slide seat 200 to be held on the seat side. It is attached along the middle portion of the harness 21 reaching the portion 23 to regulate the harness path.

According to the harness routing structure 20, even if the slide seat 200 is slid in the front-rear direction X or stored in the foot space A, an excessive load is prevented from being applied to the harness 21. can.
Specifically, in the harness routing structure 20 according to the present invention, the harness restricting portion 24 extends from the vehicle body side holding portion 22 toward the rear side B along the longitudinal direction X, and then bends back toward the front side F and slides. The harness 21 is bent in a direction approaching the seat 200 (a direction toward the upper side U when the slide seat 200 is deployed from the foot space A) and is brought into contact with the intermediate portion of the harness 21 leading to the seat side holding portion 23 . Regulate the harness path. Therefore, the deformation (displacement) of the harness 21 is kept small at the intermediate portion of the harness 21 away from both the vehicle body side holding portion 22 and the seat side holding portion 23, and the harness 21 is locally bent (bent with a large curvature, In other words, it is possible to prevent the occurrence of sharp bending with a sharp degree of bending. Therefore, even if 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 .

In the harness routing structure 20 according to the present embodiment, the harness restricting portion 24 approaches the slide seat 200 from the direction toward the front side F of the harness 21 in a state in which the slide seat 200 is deployed from the foot space A. A bending restricting portion 245 is provided along the bent portion 21b to restrict the bending shape of the portion 21b.

According to such a harness routing structure 20 , the harness 21 is wound around the bending restricting portion 245 and bent along the bending restricting portion 245 when the slide seat 200 is unfolded from the foot space A. Therefore, it is possible to prevent the portion 21b of the harness 21 bent from the direction toward the front side F toward the direction closer to the slide seat 200 from becoming smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness 21 .

In addition, in the harness routing structure 20 according to the present embodiment, the bending restricting portion 245 is an arcuate surface 245s formed in the harness restricting portion 24, and the central axis C1 of the arcuate surface 245s is pivoted at the connecting portion of the link arm 13. It is arranged coaxially with respect to the center of motion.

According to such a harness routing structure 20, when the harness 21 follows the pivoting motion of the link arm 13 and winds around the arc surface 245s that is the bending restricting portion 245, it can be prevented from being pulled and strained. . Therefore, it is possible to prevent an excessive load from acting on the harness 21 . Further, when the harness 21 follows the pivoting motion of the link arm 13 and is unwound from the arc surface 245s that is the bending restricting portion 245, it can be prevented from being greatly loosened.

Further, in the harness routing structure 20 according to the present embodiment, the seat-side holding portion 23 has a bent portion 21c ( 13) is provided to regulate the bending shape of the portion 21c.

According to such a harness routing structure 20 , the harness 21 is wound around the bending restricting portion 234 and bent along the bending restricting portion 234 when the slide seat 200 is stored in the foot space A. Therefore, it is possible to prevent the bent portion 21c near the tip portion of the harness 21 from having a radius smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness 21 .

Further, in the harness wiring structure 20 according to the present embodiment, the bending restricting portion 234 is an arcuate surface 234s formed on the seat side holding portion 23, and the central axis C2 of the arcuate surface 234s is at the connecting portion of the link arm 13. It is arranged coaxially with respect to the pivot center.

According to such a harness routing structure 20, when the harness 21 follows the pivotal movement of the link arm 13 and winds around the arc surface 234s that is the bending restricting portion 234, it can be prevented from being pulled and strained. . Therefore, it is possible to prevent an excessive load from acting on the harness 21 . Further, when the harness 21 is unwound from the arc surface 234s that is the bending restricting portion 234 following the pivotal movement of the link arm 13, it can be prevented from being greatly loosened.

Further, in the harness routing structure 20 according to the present embodiment, the harness restricting portion 24 is provided with the harness regulating portion 24, in a state in which the slide seat 200 is slid to the rear side B, extends from the direction toward the rear side B to the front side F of the harness 21 . A bending restricting portion 244 is provided along the portion 21a bent back in the direction to restrict the bending shape of the portion 21a.

According to such a harness routing structure 20, in a state in which the slide seat 200 is slid in the direction toward the rear side B, the harness 21 is wound around the bending restricting portion 244 and bent back along the bending restricting portion 244. It will happen. Therefore, it is possible to prevent the portion 21a of the harness 21 bent back toward the front side F from the direction toward the rear side B from becoming smaller than the allowable bending radius. Therefore, it is possible to prevent an excessive load from acting on the harness 21 .

In the harness routing structure 20 according to the present embodiment, the harness restricting portion 24 is provided with an extension restricting portion 246 that restricts the harness path of the portion of the harness 21 that extends forward F.
According to such a harness routing structure 20, the intermediate portion of the harness 21 spaced apart from both the vehicle body side holding portion 22 and the seat side holding portion 23 can be supported. Therefore, it is possible to prevent the middle portion of the harness 21 from hanging down due to gravity. Therefore, it is possible to prevent the hanging harness 21 from interfering with surrounding members.

In addition, in the harness routing structure 20 according to the present embodiment, the extension restricting portion 246 is composed of a pair of contact surfaces 246s, 246s arranged so as to sandwich the harness 21 therebetween.
According to the harness routing structure 20 as described above, it is possible to suppress twisting at the intermediate portion of the harness 21 away from both the vehicle body side holding portion 22 and the seat side holding portion 23 . Therefore, it is possible to prevent the harness 21 from deforming into an unintended shape. Therefore, it is possible to prevent the harness 21 deformed into an unintended shape from interfering with surrounding members.

Further, 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 the harness routing structure 20 as described above, it is possible to change the specification of the harness 21 that is laid between the vehicle body 100 and the slide seat 200 . For example, it is possible to apply the flexible flat cable only to the harness 21 that spans between the vehicle body 100 and the slide seat 200 .

Further, in the harness routing structure 20 according to the present embodiment, the harness 21 is routed in the gap between the floor panel 101 forming the vehicle body 100 and the seat cushion 201 forming the slide seat 200 .
According to the harness routing structure 20 as described above, the harness 21 can be accommodated in the gap between the floor panel 101 and the seat cushion 201 . Therefore, it is possible to make the harness 21 invisible to the person sitting on the slide seat 200 and the surrounding people, thereby improving the appearance.

In correspondence with the configuration of the present invention and the above-described embodiment,
The seat support structure corresponds to the seat support structure 10,
The rail corresponds to rail 11,
The slider corresponds to slider 12,
The link arm corresponds to the link arm 13,
The harness routing structure corresponds to the harness routing structure 20,
The harness corresponds to 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 second bending restricting portion corresponds to the bending restricting portion 234,
The arc surface corresponds to the arc surface 234s,
The harness regulating portion corresponds to the harness regulating portion 24,
The third bending restricting portion corresponds to the bending restricting portion 244,
The arc surface corresponds to the arc surface 244s,
The first bending restricting portion corresponds to the bending restricting portion 245,
The arc surface corresponds to the arc surface 245s,
The stretch restricting portion corresponds to the stretch restricting portion 246,
The contact surface corresponds to the contact surface 246s,
The connectors correspond to the 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 corresponds to the slide sheet 200,
The seat cushion corresponds to the seat cushion 201,
The foot space corresponds to the foot space A,
The present invention is not limited to the configurations of the embodiments described above, and many embodiments can be obtained.

For example, in the harness routing structure 20 disclosed in the present application, a stepped portion 233 is formed in the main body portion 231 that constitutes the seat side holding portion 23, and the lower plate of the stepped portion 233 is an opening through which the harness 21 is inserted. A hole 23h is formed. However, as shown in FIG. 16, the opening hole 23h through which the harness 21 is inserted is formed in the rear plate of the body portion 231 constituting the seat-side holding portion 23, and the slide seat 200 is deployed from the foot space A. , the harness 21 may be wound around the bending restricting portion 234 .

According to such a harness routing structure 20, when the slide seat 200 is stored in the foot space A, the bending angle of the bent portion 21c near the tip portion of the harness 21 gradually increases. Become. Conversely, when the slide seat 200 is deployed from the foot space A, the harness 21 is gradually bent in the vicinity of the tip portion thereof. That is, in the state in which the slide seat 200 is unfolded from the foot space A, the seat-side holding portion 23 is in contact with the portion 21c bent in the vicinity of the tip portion of the harness 21 to regulate the bent shape of the portion 21c. It can be said that the bending restricting portion 234 is provided.

Further, in the harness routing structure 20 disclosed in the present application, the harness 21 is extended from the vehicle body side holding portion 22 to the rear side B along the front-rear direction X, and then bent back toward the front side F while approaching the slide seat 200 . (in the state where the slide seat 200 is unfolded from the foot space A, the direction toward the upper side U) and reaches the seat side holding portion 23 . However, after extending from the vehicle body side holding portion 22 to the front side F along the longitudinal direction X, it is bent back to the rear side B and in a direction approaching the slide seat 200 (in a state where the slide seat 200 is deployed from the foot space A). Alternatively, it may be bent in a direction toward the upper side U) to reach the seat-side holding portion 23 .

Further, the present invention also includes the harness restricting portion 24 that constitutes the harness routing structure 20 described above. That is, a link arm 13 is attached to a slider 12 which has a rail 11 extending in the front-rear direction X of the vehicle body 100 and is movable along the rail 11, and the link arm 13 can be stored in the foot space A by the pivoting motion of the link arm 13. A harness regulating portion 24 of the harness wiring structure 20 that supplies power to the supported electrical components of the slide seat 200, and holds the base end portion of the harness 21 that is bridged between the vehicle body 100 and the slide seat 200. Seat side holding that holds the leading end portion of the harness 21 by extending from the vehicle body side holding portion 22 to the rear side B along the longitudinal direction X and then bending back to the front side F and bending in a direction approaching the slide seat 200 . A harness restricting portion 24 that is in contact with an intermediate portion of the harness 21 reaching the portion 23 and restricts the harness path is also included.

Also in this case, the same effect as that of the harness routing structure 20 according to the above-described embodiment can be obtained. That is, at the intermediate portion of the harness 21 away from both the vehicle body side holding portion 22 and the seat side holding portion 23, the deformation (displacement) of the harness 21 is suppressed to be small, and the harness 21 is locally bent (bent with a large curvature). , that is, sharp bending with a sharp degree of bending) can be prevented from occurring. Therefore, even if the slide seat 200 is slid in the longitudinal direction X or stored in the foot space A, the harness 21 can be prevented from being subjected to an excessive load.

Finally, the harness routing structure 1 disclosed in the present application has been described assuming that the harness 21 is a flexible flat cable. However, a so-called coated wire having a round cross-sectional shape may be used. Alternatively, a so-called ribbon electric wire having a flat cross-sectional shape may be used.

DESCRIPTION OF SYMBOLS 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 234... Bending restricting part 234s... Circular surface 24... Harness restricting part 244 Bending restricting portion 244 s Arc surface 245 Bending restricting portion 245 s Arc surface 246 Extension restricting portion 246 s Contact surface 211 Connector 212 Connector 100 Vehicle body 101 Floor panel 200 Slide seat 201 Seat cushion A …foot space

Claims (11)

An electrical component of a slide seat which has a rail extending in the longitudinal direction of a vehicle body, a link arm attached to a slider movable along the rail, and supported so as to be stored in a foot space by the pivotal movement of the link arm. A harness routing structure that supplies power to
a harness that spans between the vehicle body and the slide seat;
a vehicle body side holding portion fixed to the vehicle body side 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 a leading end portion of the harness;
a harness regulating portion that is fixed to the side of the slide seat and regulates a harness path of the harness;
The harness restricting portion is extended from the vehicle body side holding portion to one side along the longitudinal direction and then bent back to the other side and bent in a direction approaching the slide seat to reach the seat side holding portion. A harness routing structure for regulating a harness path along the middle portion of the harness. The harness regulating portion is in contact with a portion of the harness that is bent from the other side toward the slide seat in a state in which the slide seat is unfolded from the foot space. The harness routing structure according to claim 1, further comprising a first bending restricting portion that restricts the shape. 3. The method according to claim 2, wherein the first bending restricting portion is an arcuate surface formed on the harness restricting portion, and the central axis of the arcuate surface is arranged coaxially with respect to the pivotal center of the connecting portion of the link arm. The harness routing structure described. In the seat-side holding portion, in a state in which the slide seat is stored in the foot space or a state in which the slide seat is unfolded from the foot space, a bent portion of the harness near the tip portion is attached to the seat-side holding portion so as to form a bent shape of the bent portion. 4. The harness routing structure according to any one of claims 1 to 3, further comprising a second bending restricting portion that restricts the bending. 5. The second bending restricting portion is an arcuate surface formed on the seat-side holding portion, and the central axis of the arcuate surface is arranged coaxially with respect to the pivoting center of the connecting portion of the link arm. The harness routing structure described in . In the harness restricting portion, in a state in which the slide seat is slid to the one side, a portion of the harness that is bent back from the direction toward the one side to the direction toward the other side is attached along the portion. 6. The harness wiring structure according to any one of claims 1 to 5, further comprising a third bending restricting portion that restricts the bending shape of the harness. 7. The harness routing structure according to any one of claims 1 to 6, wherein the harness restricting portion is provided with an extension restricting portion that restricts a harness path of the portion of the harness that is extended to the other side. 8. The harness routing structure according to claim 7, wherein the extension restricting portion is composed of a pair of creeping surfaces arranged so as to sandwich the harness. The harness routing structure according to any one of claims 1 to 8, wherein a 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 9, wherein the harness is routed in a gap between a floor panel forming the vehicle body and a seat cushion forming the slide seat. An electrical component of a slide seat which has a rail extending in the longitudinal direction of a vehicle body, a link arm attached to a slider movable along the rail, and supported so as to be stored in a foot space by the pivotal movement of the link arm. A harness regulating portion of a harness routing structure that supplies power to
The harness is stretched to one side along the front-rear direction from a vehicle-body-side holding portion that holds the base end portion of the harness that is bridged between the vehicle body and the slide seat, and then bent back to the other side and comes close to the slide seat. a harness regulating portion that is bent in a direction to regulate a harness path along an intermediate portion of the harness that reaches a seat-side holding portion that holds the leading end portion of the harness;

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