JP7407797B2 - Cable routing structure - Google Patents

Description

The present invention relates to, for example, a cable routing structure for a flexible flat cable that is routed to supply power to a slide seat that is slidably supported so as to be movable forward and backward along the longitudinal direction of a fixed rail fixed to a vehicle body.

Conventionally, many power supply devices have been proposed for supplying power to a sliding seat that is slidably supported along the longitudinal direction of a fixed rail fixed to a vehicle body so as to be movable forward and backward. A power supply device for a slide seat described in Patent Document 1, which is one such power supply device, accommodates a wire harness with one end connected to the slide seat side in a harness accommodating portion, and a U-turn shape in the harness accommodating portion. The wire harness is configured to be able to follow the sliding of the sliding sheet by moving the U-turn portion of the wire harness housed in the sliding sheet as the sliding sheet slides.

However, since the U-turn part of the wire harness housed in such a U-turn shape moves as the slide seat slides, it is necessary to provide enough space on the side of the rail for the U-turn part to move as the slide seat slides. Therefore, it was not possible to downsize the power supply device for the slide seat.

JP2019-22413A

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a cable routing structure that has a compact structure and can supply power to a slide seat.

The present invention provides a cable routing structure in which a flexible flat cable is routed to a sliding seat that is slidably supported along the longitudinal direction of a fixed rail fixed to a vehicle body so as to be movable forward and backward, the fixed rail fixed to the vehicle body a rail, a movable body that slides and supports the slide sheet so as to be movable along the longitudinal direction of the fixed rail, the flexible flat cable having one end fixed to the movable body, and the other end of the flexible flat cable being internal. and a winding device for winding and accommodating the flexible flat cable in a winding/unwinding manner, and the fixed rail includes a bottom, an outer wall portion erected from both sides of the bottom in the width direction, and an upper wall extending inward in the width direction from the top of the outer wall; and an inner wall extending from the inner side in the width direction of the upper wall toward the bottom, the bottom and the outer wall , an enclosing part constituted by the upper wall part and the inner wall part is provided on both sides in the width direction of the bottom part, and the flexible flat cable is connected to one of the enclosing parts provided on both sides in the width direction of the fixed rail. The flexible flat cable is routed inside a first enclosing part, and inside the first enclosing part, the flexible flat cable is arranged in parallel along the outer wall part , and the movable body is provided with a A cable support part is provided for supporting the flexible flat cable so that the flexible flat cable faces parallel to the outer wall part, and in the cable support part, the flexible flat cable runs along the outer wall part. A regulating part is provided for regulating the flexible flat cable at a position outside the first enclosing part in the width direction, and the flexible flat cable is fixed to the regulating part with an elastic fixing tape. do.

The flexible flat cable may be a single flexible flat cable, or a plurality of flexible flat cables may be stacked. Furthermore, it may be laminated with a flexible flat cable not provided with a conductor called a dummy cable, or with a strip-shaped member different from the flexible flat cable.

Note that one end of the flexible flat cable fixed to the movable body is one end within a fixed rail in the wiring structure, and the flexible flat cable may extend beyond that end. Further, the other end side of the flexible flat cable fixed inside the winding device is connected to the other end of the flexible flat cable in the winding device that accommodates the flexible flat cable pulled out from the fixed rail in the wiring structure so as to be able to be wound/unrolled. The flexible flat cable may extend beyond the end.

When the above-mentioned flexible flat cable is arranged in parallel along the outer wall part, it means that the main surface of the flexible flat cable and the outer wall part are arranged substantially parallel to each other so as to face each other.
Since the longitudinal direction of the fixed rail fixed to the vehicle body is generally the longitudinal direction of the vehicle body, the advancing/retreating direction is generally the longitudinal direction of the vehicle body.

According to this invention, power can be supplied to the slide sheet with a compact structure.
Specifically, the fixed rail fixed to the vehicle body includes a bottom part, an outer wall part standing from both sides of the bottom part in the width direction, and an upper wall part extending inward in the width direction from the upper part of the outer wall part. and an inner wall extending from the inside of the upper wall in the width direction toward the bottom, an enclosing part is provided on both sides of the bottom in the width direction, and is provided on both sides of the fixed rail in the width direction. Since the winding device can wind/unwind the flexible flat cable arranged in parallel along the outer wall part inside the first surrounding part of the surrounding part as it moves to the movable body, for example, , a large space such as a harness accommodating part for movably accommodating the U-turn part is not required, and a compact structure can be achieved.

Note that Japanese Patent Laid-Open No. 2010-172116 also discloses a harness winding type power supply device in which a flat wire harness corresponding to the flexible flat cable of the present invention is disposed within a rail. However, in this harness winding type power supply device, the flat wire harness is simply placed at the bottom of the rail with an opening at the top, and the flat wire harness is exposed through the opening inside the rail. and was unable to adequately protect the flat wire harness.

On the other hand, according to the present invention, the flexible flat cable is routed inside the first enclosing part of the enclosing parts provided on both sides of the fixed rail in the width direction. The flexible flat cable can be protected without being exposed to the outside of the rail. Furthermore, inside the first enclosing part, the flexible flat cable is arranged in parallel along the outer wall part, that is, the flexible flat cable is arranged at the farthest position in the width direction from the opening in the upper part of the rail. Therefore, the protection of the flexible flat cable can be improved.

Furthermore, if the flexible flat cable is arranged at the bottom of the rail as described above, there is a risk that the mobility of the movable body that slides and supports the sliding seat will be reduced. Since the cables are arranged in parallel along the outer wall portion, it is possible to prevent the mobility of the movable body from decreasing.

Further, the movable body is provided with a cable support portion that supports the flexible flat cable within the first enclosing portion so that the flexible flat cable is oriented parallel to the outer wall portion.
Thereby, the flexible flat cable fixed to the movable body can be easily and stably oriented parallel to the outer wall inside the first enclosing part.

Furthermore, the cable support section is provided with a regulating section that regulates the flexible flat cable to a position outside the first enclosing section in the width direction so that the flexible flat cable runs along the outer wall section.
Thereby, the flexible flat cable fixed to the movable body can be easily and stably routed to the outside position in the width direction inside the first enclosing part.

Further, the flexible flat cable is fixed to the regulating portion with an elastic fixing tape.
Thereby, the fixing tape that fixes the flexible flat cable to the regulating part can be elastically deformed, so that when an external force is applied to the flexible flat cable, the fixing tape is deformed and a load is applied to the flexible flat cable. This can be prevented.

As an aspect of the present invention, a band-shaped thin piece member having elastic force may be provided to overlap the flexible flat cable.
The above-mentioned band-shaped flake member having elastic force includes a metal flake member having a predetermined elasticity, such as rust-resistant stainless steel spring steel, and a resin flake member having a predetermined elasticity. Note that from the viewpoint of durability and springiness, a thin metal member is more preferable.

According to this invention, as the movable body moves, the thin piece member overlapped with the flexible flat cable is wound up/unwound by the winding device together with the flexible flat cable, and the thin piece member overlapped with the flexible flat cable The elastic force of the thin piece member allows the winding device to reliably wind/unwind the flexible flat cable.

Further, as an aspect of the present invention, the thin piece member may be disposed inside the first surrounding portion between the flexible flat cable and the outer wall portion.
According to the present invention, a thin piece member is interposed between the flexible flat cable and the outer wall portion that is wound up/unwound together as the movable body moves, so that the flexible flat cable is directly connected to the outer wall portion. The durability of the flexible flat cable can be improved without sliding.

Further, as an aspect of the present invention, the regulating portion may have a cross-sectional shape that regulates the inner side in the width direction and at least one side in the vertical direction with respect to the flexible flat cable.
According to the present invention, the flexible flat cable fixed to the movable body can be easily and stably routed to the outside position in the width direction inside the first enclosing part with a simple and compact structure. In addition, the cross-sectional shape that restricts at least one side of the inside in the width direction and the top and bottom directions is an L-shaped cross section that is configured with the inside in the width direction and one of the top and bottom directions, or the cross-sectional shape that restricts the inside in the width direction and at least one side in the top and bottom directions. It has a square U-shape or a horizontal H-shape in cross section.

Further, as an aspect of the present invention, the regulating portion may be provided with a guard portion extending at least outwardly in the width direction from the flexible flat cable.
According to the present invention, although the flexible flat cable is disposed on the outside in the width direction in the first enclosing part, it is not pressed against the outside wall part, and the friction against the outside wall part is reduced and the cable can slide smoothly. be able to.

Further, as an aspect of the present invention, the winding device may be arranged at an end of the fixed rail in front of the vehicle.
According to the present invention, the flexible flat cable that is routed inside the first enclosing portion of the fixed rail and extends from the fixed rail can be directly wound/unwound by the winding device without being exposed.

Further, as an aspect of the present invention, a rail set is configured by the two fixed rails arranged at a predetermined interval in the vehicle width direction, and the winding device is configured to move the two fixed rails constituting the rail group. It may be placed in between.
According to this invention, the winding device disposed between the rail sets does not protrude outward in the width direction from the rail sets, so that the winding device can be miniaturized.

According to the present invention, it is possible to provide a cable wiring structure that has a compact structure and can supply power to a slide seat.

A plan view of the seat slide structure. A schematic perspective view of a seat slide structure. A schematic perspective view of a flat cable routing structure. A sectional view taken along the line AA in FIG. 1. Schematic perspective view of the cable support part

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
1 shows a plan view of the seat slide structure 1, FIG. 2 shows a schematic perspective view of the seat slide structure 1, FIG. 3 shows a schematic perspective view of the flat cable routing structure 10, and FIG. 4 shows the A of FIG. -A arrow sectional view is shown, and FIG. 5 is a schematic perspective view of the cable support part 33.

In addition, in FIG. 2, the slider 3 that has moved forward is shown by a broken line, and in FIG. 3, the fixed rail 2 is shown in a transparent state. Moreover, in FIG. 5, of the cable wiring body 5 supported by the cable support part 33, a portion extending from the cable support part 33 is shown by a broken line.

Note that the longitudinal direction of the fixed rail 2, that is, the direction in which the slider 3 advances and retreats, is the front-rear direction L, and in this embodiment, the front side (left front side in FIG. 2) of the front-rear direction L is the forward direction Lf, and the back side (in FIG. 2 The rear right side) is defined as the backward direction Lb. Further, a direction perpendicular to the front-rear direction L in the horizontal plane is defined as a width direction W.

Furthermore, the direction in which the two fixed rails 2 (2a, 2b) arranged at a predetermined interval in the width direction W are opposed to each other is defined as an inner side in the opposing direction Wi, and the opposite side thereof is defined as an outer side in the opposing direction Wo. Further, the vertical direction in FIG. 2 is defined as a height direction H, the upward direction in the height direction H is defined as an upward direction Hu, and the downward direction is defined as a downward direction Hd.

As shown in FIG. 1, a seat slide structure 1 that allows a slide seat (not shown) to slide in the longitudinal direction L in the vehicle interior is arranged below the vehicle interior floor 4 at a predetermined interval in the width direction W. two fixed rails 2 that are long in the front-rear direction L and are fixed to the floor panel 41 (FIG. 4) of A slide sheet (not shown) that is slidably supported by sliders 3 on both sides of the cable and a cable winding device 6 that winds/unwinds the cable wiring body 5 are provided. Note that the vehicle interior floor 4 is arranged at a position in the height direction H shown by a broken line in FIG.

In addition, one of the two long fixed rails 2 in the front-rear direction L is used as a power supply rail 2a on which the cable routing body 5 is routed and supplies power to the slide seat, and the other is used to simply move the slider 3 in the front-rear direction L. The general fixed rail 2b is slidably supported so as to move forward and backward.

As shown in FIG. 4, the fixed rail 2 constituting the seat slide structure 1 has a groove-shaped rail body 20 disposed below the vehicle interior floor 4 and a cross-sectional shape of the rail body 20. It is composed of a shape retaining member 21 and a fixing clamp 22 that is attached to the rail bottom part 201 of the rail body 20 and fixes the rail body 20 to the floor panel 41 below the vehicle interior floor 4.

The rail main body 20 includes a rail bottom part 201 having an inverted hat-shaped cross section, side wall parts 202 provided on both sides of the rail bottom part 201 in the width direction W, and an upper part 203 extending in opposite directions from the upper end of each side wall part 202. and an inner wall portion 204 extending in the downward direction Hd from the opposing inner end portions of the upper surface portion 203, forming a cross-sectional groove shape.

Note that the inner wall portions 204 are provided at a predetermined interval in the width direction W. Further, although not shown, a rail molding is provided spanning the upper surface portions 203 on both sides in the width direction W to prevent foreign matter from entering the inside of the rail body 20 having a groove-shaped cross section. Note that the rail molding is a deformable sheet material, and has a slit in the front-rear direction L at the center of the width direction W.

Furthermore, the portions on both sides in the width direction W of the inverted hat-shaped rail bottom surface portion 201 are defined as upper bottom surface portions 201a, and the portion lower than the upper bottom surface portion 201a at the center in the width direction W is defined as a center bottom surface portion 201b. Note that the central bottom surface portion 201b is formed to have a width wider than the distance between the inner wall portions 204 arranged at a predetermined distance in the width direction W in the upper direction Hu.

In addition, on both sides of the rail bottom surface part 201 in the width direction W, the upper bottom surface part 201a, the side wall part 202, the top surface part 203, and the inner wall part 204 of the rail bottom surface part 201 define substantially rectangular surrounding spaces 24 and 25 in the cross‐sectional direction. The enclosed spaces 24 and 25 are provided in opposing directions on both sides of the rail bottom surface portion 201 in the width direction W.

The shape retaining member 21 that retains the cross-sectional shape of the rail body 20 has a wide cross-sectional recess in the width direction W with the upper direction Hu open along the rail bottom portion 201 and the side wall portions 202 on both sides in the width direction W of the rail body 20. A plurality of shape retaining members 21 are attached to the rail body 20 at predetermined intervals.

The fixing clamp 22 is fixed to the floor panel 41 by passing through the center bottom surface 201b of the rail bottom surface 201 of the rail main body 20 having a groove-shaped cross section, and is attached so that the insertion and fixing part 222 protrudes from the lower surface side. Note that the fixed clamps 22 are arranged at predetermined intervals in the front-rear direction L.

The slider 3 mounted so as to be slidable in the front-rear direction L with respect to the fixed rail 2 configured as described above protrudes in the upward direction Hu from the upper surface portion 203 of the rail body 20 of the fixed rail 2, and is attached to a slide seat (not shown). , an internal running section 32 disposed inside the rail main body 20 , and a cable support section 33 that fixedly supports one end of the cable wiring body 5 .

The upper support portion 31 protrudes upward from the rail bottom portion 201 of the rail body 20 in the upward direction Hu, and a slide seat (not shown) can be attached to the upper support portion 31 via a mounting fitting (not shown).
The internal running section 32 is arranged in the enclosed spaces 24 and 25 in the rail main body 20, and is arranged on both sides in the width direction W in the front-rear direction L with the height direction H regulated by the upper surface section 203 and the upper bottom surface section 201a. It is equipped with a roller 321 that rolls.

In the seat slide structure 1 configured in this way, the rollers 321 roll in the front-back direction L inside the rail body 20 of the fixed rail 2 arranged along the front-back direction L, so that the rollers 321 roll against the fixed rail 2. The slider 3 can slide in the front-rear direction L. Therefore, the slide seat (not shown) supported by the upper support portion 31 of the slider 3 can slide in the front-rear direction L with respect to the fixed rail 2.

In the seat slide structure 1, a flat cable wiring structure 10 for supplying power to a slide seat (not shown) that is slidable in the front-rear direction L with respect to the fixed rail 2 is provided in a predetermined manner in the width direction W of the seat slide structure 1. The cable routing body 5 is routed along the front-rear direction L, and the cable routing body 5 can be wound/unrolled from the power supply rail 2a of the two fixed rails 2 arranged at intervals. A cable winding device 6 is provided.

The cable routing body 5 includes a plurality of flexible flat cables 51 (hereinafter referred to as FLFC51), which are thin strip-shaped conductors in which a plurality of rectangular conductors are sandwiched between insulating laminate sheets, and a flexible flat cable 51 (hereinafter referred to as FLFC51), which is harder than the FLFC51 and is made of a thin strip-like conductor formed by sandwiching a plurality of rectangular conductors between insulating laminate sheets. It consists of a thin piece member 52 that is laminated on the top.

The thin piece member 52 is made of a stainless steel spring steel material that is resistant to rust, and is housed in the cable winding device 6 together with the FLFC 51 as the cable wiring body 5 so that it can be wound/unrolled, and therefore has a thickness of 0.2 mm or less. There is.

Moreover, the thin piece member 52 is laminated on one side of a plurality of laminated FLFCs 51 . Further, the cable wiring body 5 composed of the FLFC 51 and the thin piece member 52 is formed to be longer than the length of the fixed rail 2 in the front-rear direction L.

The front end 53 of the cable wiring body 5, which is made by laminating the FLFC 51 and the thin piece member 52 and is routed inside the enclosed space 24, is fixed inside the cable winding device 6 as described later, and the rear end 54 is fixed to the slider 3.

A cable winding device 6 that accommodates the cable wiring body 5 so as to be able to be wound up/unrolled is arranged at the end in the forward direction Lf of the rail main body 20 of the power supply rail 2a on which the cable wiring body 5 is routed. . The cable winding device 6 has a substantially square shape with corners chamfered in an arc shape in a plan view, and is provided with a cable entrance 61 (FIG. 3) on one side of the width direction W in the retreating direction Lb.

Note that the cable entrance 61 through which the cable wiring body 5 enters and exits the cable winding device 6 is arranged in the forward direction Lf of the side wall portion 202 on which the cable wiring body 5 is routed, and is located at a corner in a plan view. The cable winding device 6, which has a substantially square shape and is chamfered into an arc shape, protrudes inward in the opposing direction Wi.

Further, inside the cable winding device 6, a winding shaft 62 for fixing the front end portion 53 of the cable wiring body 5 is provided. The winding shaft 62 is a shaft that rotates by a spiral spring (not shown) so that the front end portion 53 can be wound up.

Further, in this embodiment, the winding shaft 62 is rotated counterclockwise to wind up the cable wiring body 5, and the winding shaft 62 is rotated clockwise to unwind the winding cable 57 to wind the cable. It is configured so that the cable wiring body 5 is let out from the device 6.

Further, inside the cable winding device 6, which has a substantially square shape with corners chamfered in an arc shape when viewed from the width direction W, the winding shaft 62 is moved in the forward direction Lf from the center of the above-mentioned substantially square shape in a plan view. and is arranged at a position eccentric to the outer side Wo in the opposing direction.

The cable winding device 6 configured in this manner has a vehicle body side connector 56 extending thereto which is fitted and connected to a power supply connector on the vehicle body side, and forms the cable routing body 5 inside the cable winding device 6. The front end 53 of the FLFC 51 and the vehicle body side connector 56 are electrically conductively connected.

Note that, as shown in FIGS. 3 and 5, the rear end portion 54 of the cable wiring body 5 is supported by a cable support portion 33 provided in the forward direction Lf of the upper support portion 31 of the slider 3.
As shown in FIGS. 4 and 5, the cable support part 33 that supports the rear end 54 of the cable wiring body 5 fixes the rear end 54 of the cable wiring body 5 and controls the arrangement of the rear end 54. It has a substantially L-shape in front view, including a regulating part 34 that regulates the cable position, a bottom part 35, and an upright part 36 that raises the cable wiring body 5 on the side of the regulating part 34. Note that, as the slider 3 moves, the rear end 54 of the cable wiring body 5 supported by the cable support section 33 also moves.

The regulating portion 34 that fixes the rear end portion 54 includes a vertical wall 341 along the main surface of the rear end portion 54 facing in the height direction H, and an upper surface portion 342 extending in the width direction W from the upper end of the vertical wall 341. , it has an inverted L-shape when viewed from the front when viewed from the forward direction Lf.

The rear end 54 is fixed by the inverted L-shaped restriction portion 34 configured in this manner so as to restrict the upper Hu and side (outside Wo in the opposing direction) of the rear end 54. At this time, the restricting portion 34 and the rear end portion 54 are fixed by wrapping an elastic tape 37 having elasticity and insulation properties.

Further, a guard portion 38 is provided at the upper part of the bottom portion 35 of the restriction portion 34 in the backward direction Lb, which protrudes outward in the width direction W (that is, inside Wi in the opposing direction) from the rear end portion 54 fixed to the restriction portion 34. .
Note that the bottom part 35 on the back side of the regulating part 34, which has the guard part 38 provided on the upper part, also protrudes outward in the width direction W (that is, inward in the opposing direction Wi) from the rear end part 54 like the guard part 38, and It protrudes from the guard portion 38 in the forward direction Lf. The bottom portion 35 and the guard portion 38 configured in this manner form an L-shape that is opposite in the width direction W when viewed from the forward direction Lf.

In this way, the cable wiring body 5 whose rear end portion 54 is supported by the cable support portion 33 provided in the internal running portion 32 of the slider 3 is placed inside the enclosed space 24 while being routed in the enclosed space 24. The cable is routed at a position on the outside in the width direction (a position on the inside in the opposing direction Wi), that is, a position along the side wall portion 202 .

However, since the guard portion 38 protrudes outward in the width direction (that is, inward in the opposing direction Wi) from the rear end portion 54 fixed to the restriction portion 34, the cable routing body 5 may be pressed against the side wall portion 202 by the restriction portion 34. can be prevented.

In the cable support part 33 configured in this way, the rear end part 54 is fixed to the regulating part 34, bent and extended along the bottom part 35, further bent and extended in the upward direction Hu along the upright part 36, and The seat-side connector 39 is connected to the upper direction Hu of the installation portion 36, and it is possible to more reliably electrically connect an electric device provided on a sliding sliding seat (not shown) via the seat-side connector 39.

The cable routing body 5 has its rear end 54 supported by the slider 3 configured as described above, and is disposed outside in the width direction inside the inner wall 204 so that its main surface faces the side wall 202. As it passes through the cable entrance 61 of the cable winding device 6 and the front end 53 is fixed to the winding shaft 62 inside the cable winding device 6, the slider 3 moves in the backward direction Lb as shown in FIG. When the cable wiring body 5 is arranged, the cable wiring body 5 is unwound from the cable winding device 6 and is attached to the side wall part 202 with the main surface facing the side wall part 202 by the cable support part 33 inside the enclosed space 24. The cables are routed along the line.
Conversely, as shown by the broken line in FIG. 1, when the slider 3 moves in the forward direction Lf, the cable winding device 6 winds and stores the cable wiring body 5 as the slider 3 moves in the forward direction Lf. be able to.

As described above, the flat cable routing structure 10 that routes the cable routing body 5 to the sliding seat that is slidably supported along the front-back direction L of the fixed rail 2 fixed to the vehicle body is attached to the vehicle body. A fixed rail 2, a slider 3 that slides and supports a slide seat so as to be movable back and forth along the front-rear direction L of the fixed rail 2, a cable wiring body 5 whose rear end 54 is fixed to the slider 3, and a cable wiring structure. The front end 53 of the cable body 5 is fixed inside, and a cable winding device 6 is provided for winding and accommodating the cable cable body 5 so as to be able to be wound/unrolled. and a side wall portion 202 standing upright from both sides of the upper bottom portion 201a in the width direction W, a top surface portion 203 extending from the top of the side wall portion 202 inward in the width direction W, and an inside side of the top surface portion 203 in the width direction W. and an inner wall part 204 extending from the upper bottom part 201a toward the upper bottom part 201a, and the enclosed spaces 24 and 25 constituted by the upper bottom part 201a, the side wall part 202, the upper part 203, and the inner wall part 204 are provided with an inner wall part 204 extending from the upper bottom part 201a toward the upper bottom part 201a. The cable routing body 5 is provided on both sides of the fixed rail 2 in the width direction W, and is routed inside the enclosed space 24 of the enclosed spaces 24 and 25 provided on both sides of the fixed rail 2 in the width direction W. 24, the cable wiring bodies 5 are arranged in parallel along the side wall portion 202, so that power can be supplied to the slide seat with a compact structure.

To be more specific, on the fixed rail 2 fixed to the vehicle body, there is an upper bottom part 201a, a side wall part 202 standing from both sides of the upper bottom part 201a in the width direction W, and an inner side in the width direction W from the top of the side wall part 202. The enclosed spaces 24 and 25, which are constituted by the extended upper surface part 203 and the inner wall part 204 extended from the inner side of the upper surface part 203 in the width direction W toward the upper bottom surface part 201a, have the same width as the upper bottom surface part 201a. The cable wiring bodies 5 are provided on both sides of the fixed rail 2 in the width direction W and are arranged in parallel along the side wall portion 202 inside the enclosed space 24 of the enclosed spaces 24 and 25 provided on both sides of the fixed rail 2 in the width direction W. Since the cable winding device 6 can wind/unwind the cable wiring body 5 as it is moved to the slider 3, there is no need for a large space such as a harness storage section that movably accommodates the U-turn section. Therefore, it can be configured with a compact structure.

Further, since the FLFC 51 is routed inside the enclosed space 24, the FLFC 51 is not exposed to the outside of the rail body 20, and the FLFC 51 can be protected. Furthermore, inside the enclosed space 24, the FLFC 51 is arranged in parallel along the side wall portion 202, that is, the FLFC 51 is arranged at the farthest position in the width direction W from the upper opening of the rail body 20. Therefore, the protection of the FLFC 51 can be improved.

Furthermore, if the FLFC 51 is arranged on the rail bottom part 201 as described above, the mobility of the slider 3 that slides and supports the slide sheet may be reduced. Since they are arranged parallel to each other, it is possible to prevent the mobility of the slider 3 from decreasing.

Furthermore, since the band-shaped thin piece member 52 having elastic force is provided so as to overlap the FLFC 51 constituting the cable routing body 5, as the slider 3 moves, the thin piece member 52 overlapped with the FLFC 51 becomes the FLFC 51. At the same time, the cable winding device 6 winds/unwinds the cable wiring body 5, and the cable winding device 6 can reliably wind/unwind the cable wiring body 5 due to the elastic force of the thin piece member 52 overlapped with the FLFC 51. .

Furthermore, by disposing the thin piece member 52 between the FLFC 51 and the side wall portion 202 inside the enclosed space 24, the thin piece member 52 can be wound up/unwound between the FLFC 51 and the side wall portion 202 as the slider 3 moves. Since the thin piece member 52 is interposed, the durability of the FLFC 51 can be improved without the FLFC 51 directly sliding on the side wall portion 202.

Moreover, by providing the cable support part 33 that supports the cable routing body 5 so as to face the cable routing body 5 in a predetermined direction inside the enclosed space 24 on the slider 3, the cable routing body 5 fixed to the slider 3 can be It can be easily and stably oriented parallel to the side wall portion 202 inside the enclosed space 24 .

In addition, in the cable supporting portion 33, a regulating portion 34 is provided that surrounds the cable routing body 5 so that the cable routing body 5 follows the side wall portion 202 and restricts it to an outer position in the width direction W inside the space 24. , the cable routing body 5 fixed to the slider 3 can be easily and stably routed to an outer position in the width direction W inside the enclosed space 24.

Furthermore, the regulating section 34 has an L-shaped cross section that regulates the inner and lower sides in the width direction W with respect to the cable wiring body 5 by the vertical wall 341 and the upper surface section 342, thereby achieving a simple and compact structure. Thus, the cable routing body 5 fixed to the slider 3 can be easily and stably routed to an outer position in the width direction W inside the enclosed space 24.

Further, the regulating portion 34 is provided with a guard portion 38 that extends outward in the width direction W from the cable routing body 5, so that the cable routing body 5 is disposed outside in the width direction W in the surrounding space 24. However, without being pressed against the side wall portion 202, the friction against the side wall portion 202 can be reduced and it can be slid smoothly.

Furthermore, since the cable routing body 5 is fixed to the regulating portion 34 with the elastic tape 37 having elasticity, the elastic tape 37 that fixes the cable routing body 5 to the regulating portion 34 can be elastically deformed. When an external force is applied to the cable body 5, the elastic tape 37 is deformed and a load can be prevented from being applied to the cable body 5.

Further, by disposing the cable winding device 6 at the end of the fixed rail 2 in the forward direction Lf, the cable wiring body 5 is routed inside the enclosed space 24 of the fixed rail 2 and extends from the fixed rail 2. The cable can be directly wound/unwound by the cable winding device 6 without being exposed.

Furthermore, a rail set is configured by fixed rails 2 (2a, 2b) arranged at a predetermined interval in the width direction W, and the cable winding device 6 is installed between the fixed rails 2 (2a, 2b) that constitute the rail set. By disposing the cable winding device 6 between the rail sets, the cable winding device 6 does not protrude from the rail set to the outside in the opposing direction Wo, and can be made smaller.

In the correspondence between the configuration of this invention and the above-described embodiments, the fixed rail of this invention corresponds to the fixed rail 2,
Similarly below,
The longitudinal direction corresponds to the front-back direction L,
Flexible flat cable is compatible with FLFC51,
The cable routing structure corresponds to the flat cable routing structure 10,
The moving object corresponds to slider 3,
The winding device corresponds to the cable winding device 6,
The bottom part corresponds to the upper bottom part 201a,
The width direction corresponds to the width direction W,
The outer wall portion corresponds to the side wall portion 202,
The upper wall portion corresponds to the upper surface portion 203,
The inner wall portion corresponds to the inner wall portion 204,
One end side corresponds to the front end portion 53,
The other end corresponds to the rear end 54,
The surrounding portion corresponds to the surrounding spaces 24 and 25,
The first enclosing portion corresponds to the enclosing space 24,
The thin piece member corresponds to the thin piece member 52,
The cable support portion corresponds to the cable support portion 33,
The regulation section corresponds to the regulation section 34,
The guard portion corresponds to the guard portion 38,
The fixed tape corresponds to the elastic tape 37,
The front of the vehicle corresponds to the forward direction Lf,
The two fixed rails arranged correspond to fixed rail 2 (2a, 2b),
This invention is not limited to the configuration of the above-described embodiments, and can be implemented in many other embodiments.
For example, in the above description, the thin piece member 52 is made of a metal having a predetermined elasticity, such as stainless steel spring steel that does not easily rust, but it may also be made of a resin having a predetermined elasticity.

In addition, although the cable routing body 5 is constructed by laminating the FLFC 51 and the thin piece member 52, the cable routing body 5 may be constructed by arranging the thin piece members 52 on both sides of the FLFC 51, or the cable routing body 5 may be constructed using only the FLFC 51. The wiring body 5 may also be configured. Furthermore, instead of the thin piece member 52, a dummy cable without a conductor may be laminated with the FLFC 51.

In the above description, the restriction part 34 that fixes the rear end part 54 is defined by the vertical wall 341 along the main surface of the rear end part 54 facing in the height direction H, and the upper surface part extending in the width direction W from the upper end of the vertical wall 341. 342 in an inverted L-shape when viewed from the front, and the inverted L-shaped regulating portion 34 controls the rear end 54 so as to regulate the upper Hu and the side (outside Wo in the opposing direction) of the rear end 54. Although fixed, the regulating portion 34 is composed of a vertical wall 341 and a lower surface portion extending in the width direction W from the lower end of the vertical wall 341, and the lower direction Hd and the side (opposite direction outer side Wo) of the rear end portion 54 are The rear end portion 54 may be fixed so as to be restricted, or the restriction portion 34 may be configured by the vertical wall 341, the upper surface portion 342, and the lower surface portion, and the upper direction Hu, lower direction Hd, and side portion of the rear end portion 54 may be fixed. The rear end portion 54 may be fixed so as to restrict the direction (the outer side Wo in the opposing direction).

2...Fixed rail 3...Slider 5...Cable routing body 6...Cable winding device 10...Flat cable routing structure 24...Enclosed space 25...Enclosed space 33...Cable support section 34...Restriction section 37...Elastic tape 38...Guard Part 51...FLFC
52...Thin member 53...Front end 54...Back end 201a...Upper bottom part 202...Side wall part 203...Upper surface part 204...Inner wall L...Anteroposterior direction Lf...Forward direction W...Width direction

Claims (7)

A cable routing structure in which a flexible flat cable is routed to a sliding seat that is slidably supported along the longitudinal direction of a fixed rail fixed to a vehicle body so as to be movable forward and backward,
the fixed rail fixed to the vehicle body;
a movable body that slides and supports the slide sheet so as to be movable back and forth along the longitudinal direction of the fixed rail;
the flexible flat cable having one end fixed to the moving body;
a winding device having the other end of the flexible flat cable fixed therein and winding and accommodating the flexible flat cable in a windable/unwindable manner;
The fixed rail is
a bottom portion, an outer wall portion standing from both sides of the bottom portion in the width direction, a top wall portion extending inward in the width direction from the top of the outer wall portion, and a top wall portion extending from the inner side in the width direction of the top wall portion toward the bottom portion. and an inner wall portion extending from the top.
An enclosing portion composed of the bottom portion, the outer wall portion, the upper wall portion, and the inner wall portion is provided on both sides of the bottom portion in the width direction,
The flexible flat cable is routed inside a first enclosing part of the enclosing parts provided on both sides of the fixed rail in the width direction,
Inside the first enclosing part, the flexible flat cable is arranged in parallel along the outer wall part ,
To the mobile body,
A cable support part is provided inside the first enclosing part to support the flexible flat cable so that the flexible flat cable is oriented parallel to the outer wall part,
In the cable support part, a regulating part is provided for regulating the flexible flat cable to a position outside the first enclosing part in the width direction so that the flexible flat cable follows the outer wall part,
The flexible flat cable is fixed to the regulating part with an elastic fixing tape.
Cable routing structure. The regulation department is
The flexible flat cable has a cross-sectional shape that restricts the inner side in the width direction and at least one side in the vertical direction.
The cable routing structure according to claim 1 . The regulation department is
A guard portion extending at least outwardly in the width direction from the flexible flat cable is provided.
The cable routing structure according to claim 1 or 2 . A band-shaped thin piece member having elastic force is provided so as to overlap the flexible flat cable.
A cable routing structure according to any one of claims 1 to 3 . The thin piece member is arranged between the flexible flat cable and the outer wall part inside the first enclosing part.
The cable routing structure according to claim 4 . The winding device is arranged at an end of the fixed rail in front of the vehicle.
A cable routing structure according to any one of claims 1 to 5 . A rail set is constituted by the two fixed rails arranged at a predetermined interval in the vehicle width direction,
The winding device is arranged between the two fixed rails constituting the rail set.
A cable routing structure according to any one of claims 1 to 6 .

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