JP6052064B2 - Wire harness wiring structure for slide sheet - Google Patents

Description

  The present invention relates to a wire harness wiring structure for a slide sheet, and is particularly suitable for a long slide of 400 mm or more.

  A vehicle seat is equipped with various electrical components such as an electric reclining device and a seat heater. In order to supply power to these electrical components, a power supply wire harness is routed from the vehicle body floor to the seat. In the slide sheet, it is necessary to cause the wire harness to follow the sliding operation of the sheet. For this reason, the wire harness is routed with an extra length portion. The slide size of an automobile slide seat is usually about 240 mm to 300 mm at maximum, but a long slide seat with a slide size of about 400 mm to 1200 mm in a passenger seat or a rear seat can be used to leave a large space in front of or behind the seat. A car that has made it possible is being offered recently. In such a long slide sheet, since the length of the extra length of the wire harness is large, a rail for the wire harness is required for smoothly taking in and out the wire harness from the extra length accommodating portion.

As a harness routing device that is routed between a vehicle body floor of this type and a long slide seat, a device shown in FIGS. 8 (A) (B) and 9 (A) (B) in Japanese Patent Laid-Open No. 2010-193599. Has been proposed. In the apparatus, the harness rail 102 is installed in parallel and adjacent to the side of the seat rail 101 for the slide seat 100, and the wire extra length accommodation case 110 is installed in parallel and adjacent to the side of the harness rail 102. is set up. That is, the front end of the separate harness rail 102 and the extra wire length accommodation case 110 are aligned with the side of the seat rail 101, which is the moving area of the slide seat 100, so that the total length of the extra wire length accommodation case 110 is reduced. They are arranged parallel to the side. A slider 103 connected to the slide sheet 100 is slidably fitted to the harness rail 102. The wire harness W / H wired to the slide sheet 100 is branched from the floor harness and inserted into the extra wire length accommodation case 110 in a state of being covered with a corrugated tube, and from the extra wire length accommodation case 110 to the harness rail 102. The slide sheet 100 is wired through a slider 103 that moves in conjunction with the slide sheet 100.

The front end of the harness rail 102 and the front end of the extra wire length accommodation case 110 are arranged in parallel on the same line, and the front ends are semicircular guides. It is continuous with members. In this apparatus, the wire harness W / H curves the guide member from the harness rail 102 and inserts it from the front end of the wire surplus length accommodation case 110 , and makes a U-turn at the rear and is pulled out from the outlet at the front end. Is inserted into the wire surplus length housing case 110 via a first bend X1 at the front end side of the electric wire excess length accommodating case 110, the wire excess length accommodating case 110 by electrical wire surplus length housing case 110 within bypassing the U-shaped A second bend X2 is made at the rear end portion of the head, and two bends X1 and X2 are necessary. Further, as shown in FIGS. 9 (A) and 9 (B), it is inserted forward after the second bend X2 at the rear end, bent to an L shape on the front end side of the extra wire length accommodating case 110, and downward. It is inclined and is drawn outwardly in phase with the front end bent portion X1.

JP 2010-193599 A

As described above, the wire harness W / H is inserted once in the front-rear direction in the harness rail 102, and the wire harness W / H is reciprocated in the front-rear direction in the electric wire excess length accommodation case 110 and inserted twice. 9, the wire harness W / H is inserted three times in the width direction at a position where the wire harness W / H is drawn out from the front end of the harness rail 102 indicated by the arrow Y and inserted into the front end of the wire surplus length housing case 110. Space is required. In addition, the space in the width direction is arranged so that the front end positions of the harness rail 102 and the extra wire length accommodating case 110 are aligned and the entire length of the extra wire length accommodating case 110 is adjacent to the side of the harness rail 102. It is necessary in the entire length region of the long housing case 110, and requires a large space in the width direction in a wide region in the front-rear direction on the side of the seat rail. What I, the installation space of the harness rail 102 and the wire excess length accommodating case 110 is required at the side of the seat rail 101 is increased, the existing materials that interfere with problems such air ducts are pipes on the side of the seat rail there Ru.
Further, when the wire harness is pulled from the harness rail 102 to the electric wire surplus length accommodation case 110, the wire harness is bent for the first time, and the electric wire extra length accommodation case 110 is bent for the second time, so that the slide seat moves forward or backward. The wire harness is bent twice by this movement, and is bent four times by one reciprocation. Furthermore, it is bent in an L-shape on the leading end side, and bending fatigue applied to the wire harness is increased.

FIG. 10A schematically shows the shape of the extra wire length accommodation case 110 disclosed in Patent Document 1. In contrast to this shape, when the wire surplus length absorption case 200 having the shape shown in FIG. 10B is used, bending fatigue can be reduced by bending the wire harness once in the wire surplus length absorption case 200. That is, in the electric wire surplus length absorption case 200 shown in FIG. 10 (B), the wire harness W / H is bent once (X1) only at the front end side, and is drawn out from the opening 201 on the rear end side. There is no bending at the side.
However, if it is the said structure, in order to absorb the surplus length of a wire harness, it is necessary to enlarge the length dimension L1 of the front-back linear part. Therefore, as in Patent Document 1, it is necessary to extend the length of the wire surplus length absorption case 200 and project it forward from the seat rail as compared with the case where the rear end is bent and pulled forward. is there.
Thus, if the electric wire surplus length accommodation case is protruded largely forward from the front end of the seat rail, there is a possibility of interfering with an existing material arranged under the floor in front of the slide seat.

The present invention has been made in view of the above problems, and the length in the front-rear direction of the extra wire length accommodation case is made shorter than the shape shown in FIG. lengthwise dimension of the wire excess length accommodating case projecting from the rail in the width direction as a problem that you decline the installation space of the seat rail side and shorter than the shape shown in FIG. 10 of Patent Document 1 (a) Yes.

In order to solve the above problems, the present invention provides:
A harness rail extending linearly in the front-rear direction arranged along the side surface of the seat rail for the slide seat;
A slider coupled to a slide sheet and movably fitted in the harness rail;
A wire harness for wiring to the slide seat through the slider is continuously advanced from the front end of the harness rail, bent at the front end, moved backward, bent at the rear side, moved forward again, and inserted into the extra cable length accommodation case. Prepared,
The outer peripheral wall surrounding the bottom wall of the extra wire length accommodation case is curved from the front side of the seat rail side straight side and the front side of the seat rail side straight side extending linearly forward and continuously to the front end of the harness rail. A front end arc side, an outer straight side extending rearward from the other end of the front end arc side beyond the front end position of the harness rail, and a curve from the rear end of the outer straight side toward the outer side of the harness rail A rear end arc side, the width of the rear end arc side is smaller than the width of the front end arc side, and the outlet of the wire harness provided in the electric wire excess length storage case is at an intermediate position in the front-rear direction and At the position adjacent to the side of the wire insertion opening at the front end of the harness rail, the wire harness that curves and re-advances at the rear side is pulled out from the outlet, and the re-advance wire harness and the harness rail side Forward from That provides a wire harness device for a sliding seat which is a wire harness and alongside not inserted configure.

As described above, in the apparatus of the present invention, the wire harness outlet provided at the intermediate position in the front-rear direction of the wire surplus length accommodation case is provided at a position adjacent to the boundary position between the harness rail and the wire surplus length accommodation case .
Wire surplus length receiving cases of Patent Document 1, since is juxtaposed wire insertion hole and the wire outlets, the wire harness is advanced again after the curved rear side, are pulled out from the outlets of the front end at the front end, the harness The front and rear lengths of the electric wire surplus length accommodation cases adjacent to the sides of the rail are large, taking a large space in the width direction.
On the other hand, in the present invention, the wire harness that is re-advanced from the rear end bending portion in the electric wire surplus length accommodation case is positioned at the intermediate position in the front-rear direction of the electric wire surplus length accommodation case and at the side of the front end position of the harness rail. It is set so as not to be inserted adjacent to and parallel to the wire harness that is terminated from the outlet and pulled out from the outlet and is advanced from the harness rail side in the electric wire surplus length accommodation case . Thus, within part of the electric wire excess length accommodating case adjacent to the side of the harness rail and once without twice the advance of the wire harness, without parallel wire harness in three rows, including the forward and reverse due to the two rows in can reduce the width of the conductive line excess length accommodating case. And, since the wire excess length accommodating case is extended forward and rearward from the front end of the harness rail are subjected to excess length absorption of the wire harness before and after, without shortening the extra length absorption length, parallel to the c Nesureru the rear portion of the length of the conductive wire excess length accommodating case which can be reduced, can be about half. Thus, the installation space of the rear part of the electric wire surplus length accommodation case arrange | positioned to the side of a harness rail can be reduced in a length direction and the width direction.

And compared with the structure which pulls out a wire harness from the rear end as shown in the said FIG. 10 (B), it is made to re-advance until it bends in a rear end circular arc part and reaches the front end position of a harness rail, and electric wire insertion length is made. In order to make it large, the length of the electric wire extra length accommodation case can be shortened. Specifically, it can be shortened by about 100 mm compared to the so-called J-shape shown in FIG.
As described above, the extra wire length accommodating case of the present invention can reduce the length of the portion protruding in the width direction from the so-called U-shaped extra wire length accommodating case shown in FIG. 10 (A). The front-rear length can be made shorter than that of the so-called J-shaped wire extra-length housing case shown in FIG .

  The dimension (A) from the front end P1 of the outer side of the harness rail to one end P2 of the rear end arc side, the dimension (B) from one end P2 to the other end P3 of the rear end arc side, the circumference of the outlet If (C) is set, A + B ≦ C is established.

  Assuming that A + B ≦ C is set and the dimension B between the points P2 and P3, that is, the half circumference length of the rear end arc side is B, the curvature of the rear end arc side can be increased and loaded on the wire harness. Bending fatigue can be reduced. Thus, if the dimension B is enlarged, the dimension A will become small and the length of the electric wire extra length accommodation case can be shortened.

  A peripheral wall protrudes from the peripheral edge of the outlet of the wire harness, and the width of the forward insertion passage between the peripheral wall and the seat rail side wall and the reverse insertion passage between the peripheral wall and the outer wall is the wire harness. The dimensions are set such that the exterior material to be slidably inserted is slidably inserted.

  As described above, the forward insertion path of the wire harness from the harness rail is defined between the peripheral wall of the outlet and the side of the seat rail, and the backward insertion path of the wire harness is defined between the peripheral wall of the outlet and the outer side. Then, the wire harness can be moved forward and backward without meandering in the electric wire surplus length accommodation case.

  The harness rail and the extra wire length accommodation case are separated or integrated, and the harness insertion port at the front end of the harness rail and the rear end opening for harness advancement insertion of the extra wire length accommodation case are continuous.

If the harness rail and the extra wire length accommodating case are integrally formed of resin, the cost can be reduced by reducing the number of parts, and the number of work for attaching to the vehicle can be reduced.
On the other hand, if the harness rail and the extra wire length accommodation case are separated, the harness rail molding resin can be made more rigid than the extra wire length accommodation case molding resin, and is formed using a resin material suitable for the application. can do.

  The harness rail includes a harness insertion portion having a box-shaped cross section that extends along the outer surface of the side wall of the seat rail, and a slider sliding portion that protrudes from one side of the upper surface of the harness insertion portion. It has a shape. The upper surface opening of the slider sliding portion is opened between both side moldings that are arranged so as to cover the edge of the carpet material that serves as the compartment floor material. An upper projecting portion of the slider that fits into the slider sliding portion is projected from the opening, the slider is connected to a seat leg portion of the slide seat, and the harness rail and the electric wire extra length accommodation case are below the carpet material. It is installed in.

As described above, the electric wire extra length accommodation case includes a relatively shallow main body having arc sides at both front and rear ends, and a lid that is covered after the wire harness is accommodated in the main body.
The wire harness inserted from the front end of the harness rail moves forward in the electric wire excess length accommodation case → bends along the front arc side → reverse → bends backward → most forward → pulls outward from the outlet to the floor The harness and connector are connected. The wire harness is attached to the wall of the extra wire length accommodation case with a clamp in the vicinity of the outlet.

  A caterpillar-type protector is externally mounted on the wire harness inserted through the wire harness insertion portion of the harness rail and the extra wire length accommodation case. The protector is formed in a cylindrical shape by bending a plurality of folding lines extending in the length direction on the belt-shaped flat plate and spaced apart in the width direction, and cut in the width direction with an interval in the length direction. And one side is continuous and the other side is separated and connected to bend on one side but not on the other side.

  The height of the extra wire length accommodating case is equivalent to the height of the protector, and the insertion space of the cross section of the harness insertion portion of the harness rail is set to a size that is in sliding contact with the outer surface of the cross section of the protector. ing. Thereby, the wire harness sheathed with the protector can slide within the harness insertion portion of the harness rail and the extra length absorbing case without rattling.

As described above, the wire harness routing structure for a slide seat according to the present invention has an electric wire surplus accommodating case arranged continuously from the front end of the harness rail, and the electric wire surplus accommodating case is bent at the front and rear ends. and diverts by inserting Te, but provided at position corresponding to position of the outlets of the wire harness to the front end of the front-rear direction and before Symbol harness rail at an intermediate position of the electric wire excess length accommodating case, after bending the rear end By not making the re-advancing wire harness parallel to the wire harness moving forward from the harness rail, the width of the rear part of the wire excess length accommodation case adjacent to the side of the harness rail is not increased and the length is halved compared to the conventional case. it can. And compared with the said J-shaped pattern, the front-back dimension can be shortened and interference with the existing installation material can be prevented.

  In addition, the harness rail is installed to extend rearward from the front end along the side surface of the seat rail, and the forward insertion portion of the extra cable length accommodation case is continuously arranged at the front end of the harness rail. The wire harness can be pulled in from the rail while holding the wire harness in a straight line shape in the case. Therefore, the bending fatigue of a wire harness can be reduced compared with the case where it is bent from the front end of a harness rail like patent document 1, and it draws in an electric wire surplus length accommodation case.

It is a schematic perspective view which shows the slide sheet in embodiment of this invention. It is the II-II sectional view taken on the line of the embodiment. The positional relationship between the seat rail, the harness rail, and the extra wire length accommodation case and the movement of the wire harness are shown, (A) is a schematic explanatory diagram showing the state at the front position of the slide seat, (B) is the rear position of the slide seat FIG. 10C is a schematic explanatory diagram showing the state at, and FIG. 10C is a comparative explanatory diagram of FIG. 10B and the present invention. It is a perspective view of a harness sheet and an electric wire surplus length accommodation case. It is explanatory drawing of the dimension relationship of the exit of a wire harness of a wire surplus length accommodation case, and a rear-end circular arc side. The slider is shown, (A) is a perspective view of the slider, (B) is a cross-sectional view showing a state of being fitted to the harness rail. The protector exterior-mounted to a wire harness is shown, (A) is a perspective view, (B) is an expanded development view. A prior art example is shown, (A) is a perspective view, (B) is a principal part sectional drawing. (A) (B) is drawing which shows the action | operation of the wire harness in the harness rail of the said prior art example, and an electric wire surplus length accommodation case. (A) is the schematic diagram of the said prior art example, (B) is a schematic diagram at the time of setting it as another electric wire surplus length accommodation case.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of the present invention.
As shown in FIG. 1, the slide seat 1 on the passenger seat side mounted on the automobile is a long slide seat that can slide about 400 mm to 1200 mm. In order to supply power to an electrical component (not shown) mounted on the slide sheet 1, a floor harness routed along the floor panel 2 and a wire harness 5 connected to the connector are wired to the slide sheet 1.

  As shown in FIG. 2, a pair of left and right seat legs 3 are provided on the lower surface of the slide seat 1, and each seat leg 3 is slidable on a pair of left and right seat rails 6 mounted on the floor panel 2 via a support 50. It is attached to. Each seat rail 6 has the structure shown in FIG. 2, and the shaft portion 3a of the seat leg portion 3 protruding downward from the seating surface of the slide seat 1 is inserted into the seat rail 6, and the arm portion 3b extends from the shaft portion 3a to the left and right. The wheel 3c pivotally supported on the outer surface of the arm portion 3b is rotatably fitted in the side space 6a in the seat rail 6. On the upper wall 6f of the left and right side spaces 6a sandwiching the upper surface opening 6c at the center of the seat rail 6, a molding 10 serving as a vehicle compartment floor material is laid on the upper surface.

  On one side of the seat rail 6, a harness rail 7 that extends linearly in the front-rear direction is installed, and an electric wire extra length accommodation case 8 is installed continuously to the front end of the harness rail 7. The wire harness 5 connected to the floor harness routed on the floor panel 2 is continuously inserted into the electric wire surplus length accommodating case 8 and the harness rail 7 and passed through the slider 9 slidably fitted to the harness rail 7. Wiring is provided in the slide sheet 1. The slider 9 is connected to the leg portion 3 of the slide sheet 1, and the slider 9 is interlocked with the longitudinal movement of the slide sheet 1. When the slide sheet 1 moves backward, the extra length portion of the wire harness 5 accommodated in the extra wire length accommodation case 8 is pulled out, and the extra wire length portion drawn out when the slide sheet 1 moves forward becomes the wire harness inside the extra wire length accommodation case 8. Is detoured and housed.

  The harness rail 7 is disposed along the side surface of the seat rail 6 as shown in FIG. The harness rail 7 has an outer side 7c facing the seat rail side side 7b surrounding the harness insertion portion 7a having a box-shaped cross section extending linearly in the front-rear direction. As shown in FIG. 4, a slider sliding portion 7 d is protruded in communication with one opening on the upper surface of the harness insertion portion 7 a, and the upper surface opening of the slider sliding portion 7 d is exposed to the opening between the moldings 10. I am letting. The front end 7ap of the harness insertion portion 7a is connected to the rear end opening 8pe of the forward insertion passage 8p1 of the wire surplus length accommodation case 8.

  The extra wire length accommodation case 8 includes a shallow main body 8a and a lid 8b that covers and closes the upper surface opening of the main body 8a. The outer peripheral wall projecting from the outer peripheral edge of the bottom wall 8u of the main body 8a includes a seat rail side straight side 8c that extends straight forward in a straight line from the front end of the seat rail side side 7b of the harness rail 7, and a seat A front end arc side 8d curved from the front end of the rail side straight side 8c, an outer straight side 8e extending rearward from the other end of the front end arc side 8d, and an outer side 7c of the harness rail 7 from the rear end of the outer straight side 8e. It is comprised from the back end circular arc side 8f curved to the position which touches. In this way, the forward path insertion path 8p1 of the wire harness in the wire excess length accommodation case 8 is formed continuously with the harness rail 7, and the backward insertion path 8p2 of the wire harness is formed on the outer surface of the harness rail 7 through the front and rear bent portions. As a shape projecting from the side 7c outward in the width direction by a dimension (S2), the projecting dimension in the width direction from the outer side of the harness rail is reduced as compared with Patent Document 1.

The extra wire length accommodating case 8 is provided with an outlet 8h of the wire harness 5 on the bottom wall 8u of the shallow main body 8a at a position in contact with the outer surface of the front end 7cp of the outer side 7c of the harness rail. In this way, the wire harness 5 is provided at the position adjacent to the side surface of the front end of the harness insertion portion 7a of the harness rail 7 at the outlet 8h of the wire harness 5, and is re-advanced after being bent at the rear side in the extra wire length accommodating case 8. 5 is pulled out at the outlet 8h. Thereby, in the electric wire surplus length accommodation case 8, the wire harness 5 which advances ahead from the harness rail 7 and the wire harness 5 which re-advances the rear end bent portion are prevented from being inserted side by side.
Moreover, in the electric wire surplus length accommodation case 8, the extra length dimension of the electric wire is made longer than the electric wire surplus length accommodation case shown in FIG. Therefore, when the wire surplus length dimension is the same, the front-rear length of the wire surplus length housing case can be shortened by a dimension L2 from FIG. 10B as shown in FIG. 3B.

As shown in FIG. 5, in the extra wire length accommodating case 8, the dimension (A) from the front end 7cp of the outer side 7c of the harness rail 7 to the end P2 on the harness rail side of the rear end arc side 8f (A), rear end When the dimension (B) from one end P2 to the other end P3 of the arc side 8f and the circumference of the outlet 8h are (C), A + B ≦ C is established.
When the dimensions are set, the radius of the rear end arc side 8f can be made relatively large, the radius of the rear end side bending of the wire harness 5 can be increased in the electric wire surplus length accommodation case 8, bending fatigue can be reduced, and the dimensions (A) can be made small and the front-rear length of the electric wire surplus length accommodation case 8 can be shortened.

Moreover, in the electric wire surplus length accommodation case 8, the surrounding wall 8i is standingly arranged from the periphery of the outlet 8h of the said wire harness. The peripheral wall 8i is C-shaped so that the rear end side does not stand up so that the wire harness 5 re-advancing from the rear can be smoothly inserted into the outlet 8h.
The peripheral wall 8i is positioned continuously to the front end 7cp of the outer side 7c of the harness rail, and the width D of the forward insertion passage 8p1 of the wire harness is defined between the peripheral wall 8i and the seat rail side straight side 8c. Further, the width D of the backward insertion passage 8p2 of the wire harness between the peripheral wall 8i and the outer straight side wall 8e is defined. The width D of the forward insertion path 8p1 and the backward insertion path 8p2 is made to correspond to the width of the exterior material (protector 30) to be sheathed on the wire harness 5 described later.

  The slider 9 slidably fitted to the slider sliding portion 7d of the harness rail 7 has a shape shown in FIGS. The slider 9 is made of a resin molded product, and has a rectangular frame-shaped wire harness insertion portion 9a slidably fitted to the slider sliding portion 7d of the harness rail 7, and a sheet connection projecting continuously from the wire harness insertion portion 9a. A portion 9b is provided. The seat connecting portion 9b protrudes upward and then bends sideways on the slide seat side. Further, the seat connecting portion 9b is refracted rearward so as to be fixed to the seat leg portion 3 with a bolt B, and an opening 9c for drawing out a wire harness is provided. The wire harness 5 pulled out from the wire harness insertion portion 9a is inserted into the hollow of the sheet connecting portion 9b, and the wire harness 5 pulled out through the opening 9c is connected to the wire harness in the slide seat 1 through a connector.

A wire harness 5 that is slidably inserted into the harness insertion portion 7a of the wire extra length accommodation case 8 and the harness rail 7 is covered with a square cylindrical caterpillar protector 30 shown in FIG. As shown in FIG. 7B, the protector 30 is assembled by bending a flat plate 40 made of a continuous belt-like long material. The flat plate 40 is provided with four bent lines 41, 42, 43, 44 extending in the length direction X at intervals in the middle portion in the width direction Y, and the flat plate 40 is provided with five sides in the width direction. It divides into S1-S5, bend | folds the bending lines 41-44 at right angle, and as shown in FIG. 7 (A) by assembling | stacking the both sides S1 and S5 of the width direction, it is trying to be assembled in a square cylinder shape. .
Further, locking protrusions 45 are provided in the length direction X at intervals on the side edges of one side S1 on both sides of the flat plate 40 in the width direction. An elongated locking hole 46 for inserting and locking the locking protrusion 45 is provided in the other side S5 of the flat plate 40. By bending the flat plate 40 along the folding lines 41 to 44 and inserting and locking the locking protrusions 45 into the locking holes 46 with the sides S1 and S5 overlapped, the rectangular tube shape can be maintained. Yes. The folding lines 41 to 44 provided on the flat plate 40 are formed as about 1/3 of the plate thickness.
The flat plate 40 is provided with cut lines 48 in the width direction Y that connect the four bent lines 41 to 44 with an interval in the length direction X to separate the sides S2, S3, and S4. Further, an arc-shaped cut 49 having a straight line curved at the center of the side S3 is provided at the center of the cut line 48, one side adjacent in the length direction is projected in an arc shape, and the other is formed in an arc shape. Recessed and provided with an uneven fitting part.

  While the protector 30 bends the folding lines 41 to 44 in advance, the locking protrusions 45 are not inserted into the locking holes 46, and both sides S1 of the protector 30 in which the wire group of the wire harness 5 is bent in an open state. Insert from the opening between S5. After inserting the wire group, the sides S1 and S5 are overlapped, the locking protrusion 45 is inserted and locked into the locking hole 46, and the wire group is inserted into the square tube and is covered. The protector 30 has a configuration in which the three sides S2, S3, and S4 of the square tube are separated in the length direction by the cut line 48, and the overlapping sides S1 and S5 are flexibly connected in the length direction, and The separated sides S3 are in a state in which the adjacent sides S3 are concavo-convexly fitted with arcuate cuts. That is, a caterpillar-shaped protector 30 in which short rectangular tubes are sequentially connected in the length direction so as to be freely bent, and adjacent square tubes are engaged with each other so as not to be displaced in the width direction.

  In the wire harness routing device configured as described above, the slider 9 fitted to the slider insertion portion 7 d of the harness rail 7 moves back and forth along the seat rail 6 in conjunction with the sliding of the slide seat 1 in the front-rear direction. The protector 30 externally attached to the wire harness 5 passed through the slider 9 moves back and forth in the harness insertion portion 7a of the harness rail 7, and the wire harness 5 enters and exits the extra wire length accommodating case 8 according to the front and rear movement. To do. Accordingly, the wire harness 5 can smoothly follow the sliding operation of the slide sheet 1.

  FIG. 3A shows a state in which the slide seat 1 is in the forward position. When the slide sheet 1 is slid from the front to the rear, the wire harness 5 accommodated in the wire surplus length accommodation case 8 is pulled out to the harness rail 7 and the wire harness 5 in the wire surplus length accommodation case 8 is drawn. The front end bent portion and the rear end bent portion move so as to sandwich the outlet 8h, and the length of the wire harness accommodated in the electric wire extra length accommodating case 8 becomes short, and the state shown in FIG.

When the wire harness full length on the side of the wafer Nesureru is inserted a wire surplus length accommodating case adjacent is in a state in parallel at three places, Ri a wide width which is the sum of the harness rail and the wire excess length accommodating case, installation Space increases in the width and length directions . On the other hand, in this invention, since the advance path | route part 8p1 in the electric wire surplus length accommodation case 8 is continuing linearly at the front end of the harness insertion path 7a of the harness rail 7, it adjoins the side of the harness rail 7. FIG. While the length of the electric wire surplus length accommodation case 8 can be reduced, the width of the portion combining the harness rail 7 and the electric wire extra length accommodation case can be reduced. Therefore, since the installation space on the side of the seat rail 6 can be reduced, even if there is an existing installation such as a duct on the side of the seat rail 6, interference does not occur.

  Further, in order to bend and re-advance at the rear end, the accommodation length of the wire harness in the extra wire length accommodation case 8 of the present invention is larger than the J shape extra wire length accommodation case shown in FIG. And the front and rear lengths of the extra wire length accommodation case 8 can be shortened to prevent interference with existing installations ahead.

Further, in the electric wire excess length accommodating case 8, but bends the wire harness at front and rear side can be increased holding bending radius of the trailing edge arcuate sides, can be reduced fatigue due to bending of the rear end side of the wire harness.

  The wire harness routing device for a slide sheet of the present invention is not limited to the above embodiment, and can be variously modified without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Slide seat 2 Floor panel 3 Seat leg part 5 Wire harness 6 Seat rail 7 Harness rail 7a Harness insertion part 7d Slider sliding part 8 Extra length accommodation case 8h Drawer 9 Slider 30 Caterpillar type protector

Claims (1)

A harness rail extending linearly in the front-rear direction arranged along the side surface of the seat rail for the slide seat;
A slider coupled to a slide sheet and movably fitted in the harness rail;
A wire harness for wiring to the slide seat through the slider is continuously advanced from the front end of the harness rail, bent at the front end, moved backward, bent at the rear side, moved forward again, and inserted into the extra cable length accommodation case. Prepared,
The outer peripheral wall surrounding the bottom wall of the extra wire length accommodation case is curved from the front side of the seat rail side straight side and the front side of the seat rail side straight side extending linearly forward and continuously to the front end of the harness rail. A front end arc side, an outer straight side extending rearward from the other end of the front end arc side beyond the front end position of the harness rail, and a curve from the rear end of the outer straight side toward the outer side of the harness rail A rear end arc side, the width of the rear end arc side is smaller than the width of the front end arc side, and the outlet of the wire harness provided in the electric wire excess length storage case is at an intermediate position in the front-rear direction and At the position adjacent to the side of the wire insertion opening at the front end of the harness rail, the wire harness that curves and re-advances at the rear side is pulled out from the outlet, and the re-advance wire harness and the harness rail side Forward from That the wire harness apparatus of lined wire harness slide sheet has a configuration that does not inserted.

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