JP2014226950A - Wire harnessing device for slide sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a wiring harness from being damaged or a smooth flexural action of the wiring harness from being obstructed because the wiring harness traversing between a harness rail and an extra length housing case is caught on steps etc. of a connection part between the harness rail and the extra length housing case.SOLUTION: A wire harnessing device includes: one linear harness rail for slidably fitting a slider penetrating a wiring harness for wiring a slide sheet; and an extra length housing case connected to a front end of the harness rail, and turning and housing an extra length part of the wiring harness following a slide action of the slide sheet. A curved recess is formed at an opposed position of a sidewall inner surface and a bottom wall inner surface of a connection part between the harness rail and the extra length housing case. Also, an upper wall of the extra length housing case is inclined obliquely upward toward the front end of the harness rail.

Description

  The present invention relates to a wire harness routing device for a slide seat, and more specifically, a wire harness that moves back and forth between a harness rail and a surplus length storage case following a slide operation of the slide seat is provided between the harness rail and the surplus length storage case. It is prevented from being caught and damaged by the step formed in the connecting portion.

  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 case of a slide sheet, it is necessary to cause the wire harness to follow the sliding motion of the sheet. For this reason, the wire harness is provided with an extra length portion. The slide size of an automobile slide sheet is usually about 240 mm to 300 mm at maximum. Recently, long slide seats having a maximum slide size of about 400 mm to 1200 mm are also provided so that a large space can be opened in front of or behind the seat.

  As a harness routing device for routing between this type of vehicle body floor and a slide seat, a device shown in FIGS. 9A and 9B is proposed in Japanese Patent Laid-Open No. 2010-193599 (Patent Document 1). Yes. In this apparatus, a harness rail 102 that passes through the wire harness 110 adjacent to the side of the seat rail 101 for the slide seat 100 is laid on the floor, and the wire harness is continuously connected to the front end of the harness rail 102. A long housing case 103 is installed on the side of the harness rail 102. The wire harness 110 wired to the slide sheet 100 is branched from the floor harness and inserted into the extra length housing case 103 in a state of being covered with an exterior material (corrugated tube) 111, and then inserted into the harness rail 102 to be slid The wiring is passed through the slider 104 that slides on the harness rail 102 in conjunction with the seat 100 and is wired to the slide seat 100.

  In this apparatus, when the slider 104 is positioned on the front end side (A side) of the harness rail 102 as shown in FIG. 10A, the extra length of the wire harness 110 is folded back in a U-shape. The wire accommodated in the long accommodation case 103 and accommodated in the extra length accommodation case 103 as the slider 104 moves to the rear end side (B side) in conjunction with the slide sheet 100 as shown in FIG. The surplus length portion of the harness 110 is pulled out to the harness rail 102 and the U-shaped bent portion C moves from the B side of the surplus length housing case 103 to the front end side (A side). When the slider 104 moves to the front end side (A side) again, the wire harness 110 that has been pulled out to the harness rail 102 is again drawn into the extra length accommodation case 103 and accommodated in a state of being folded back into a U shape as the extra length portion. Is done. As described above, the wire harness 110 that follows the sliding operation of the slide sheet 100 goes back and forth between the harness rail 102 and the extra length accommodation case 103.

JP 2010-193599 A

  The harness rail 102 and the extra length accommodation case 103 are usually manufactured as separate bodies and connected when the vehicle body is attached. However, when the harness rail 102 and the extra length accommodation case 103 are connected with a slight deviation, a step is generated in the connecting portion D, and the wire harness 110 that goes back and forth between the harness rail 102 and the extra length accommodation case 103 at this step. There is a risk that the outer packaging material 111 may be caught, preventing a smooth bending operation of the wire harness 110 or damaging the outer packaging material 111 or the internal wire harness 110.

  The present invention has been made in view of the above problems, and a wire harness that moves back and forth between the harness rail and the extra length accommodation case following the sliding motion of the slide seat is generated at the connecting portion between the harness rail and the extra length accommodation case. It is an object of the present invention to prevent the wire harness from being damaged or from preventing the wire harness from being smoothly bent.

In order to solve the above-mentioned problems, the present invention is a slide sheet that is arranged rearward from the front end of the side surface of a seat rail for a slide seat, and slidably fits a slider that penetrates a wire harness that is wired to the slide seat. Straight harness rails,
An extra length accommodation case that is connected to the front end of the harness rail and turns and accommodates an extra length portion of the wire harness that follows the sliding movement of the slide seat;
With
A curved concave portion is formed in the facing position of the inner surface of the side wall of the connecting portion of the harness rail and the extra length housing case and the inner surface of the bottom wall,
There is provided a wire harness routing device for a slide seat, wherein an upper wall of the extra length accommodation case is inclined obliquely upward toward a front end of the harness rail.

  As described above, in the present invention, curved concave portions are formed on the inner surface of the side wall and the inner surface of the bottom wall of the connecting portion between the front end of the harness rail and the extra length accommodation case. Therefore, even if a step is generated at the connecting portion between the front end of the harness rail and the extra length accommodation case, the step can be present at a position where the curved concave portion is recessed. It can suppress being caught in a level | step difference. Therefore, it is possible to prevent damage to the wire harness that goes back and forth between the harness rail and the extra length accommodation case, and the wire harness can perform a smooth bending operation following the sliding operation of the slide seat.

  Further, by tilting the upper wall of the extra length accommodation case obliquely upward toward the front end of the harness rail, the wire harness can be placed on the extra length accommodation case even if a slight lift occurs in the track of the inserted wire harness. It is possible to make it difficult to get caught on the edge of the wall, and the wire harness can be smoothly moved in and out.

  In order to enhance the effect, the thickness of the upper wall that is inclined obliquely upward of the extra length accommodation case is gradually decreased toward the tip, and the tip of the upper wall is made to be the front end of the upper wall of the harness rail. It is preferable that it is close to.

  A curved surface portion forming one side of the recess is provided on the inner surface of the side wall and the inner surface of the bottom wall facing the connecting portion of the harness rail, and on the inner surface of the side wall and the bottom wall facing the connecting portion of the extra length accommodation case. A curved surface portion that forms the other side of the recess is provided, and a pair of protruding pieces that are externally fitted to the outer side wall of the connecting portion of the extra length housing case are provided from the outer side surface of the connecting portion of the harness rail. Is preferred.

  As described above, the curved inner surface forming one side of the recess is provided on the inner side wall and the bottom wall inner surface of the connecting portion of the harness rail facing each other, and the inner surface of the side wall and the bottom wall facing the connecting portion of the extra length accommodation case are provided. By providing a curved surface portion that forms the other side of the recess, the position where the step is formed by the connection between the harness rail and the extra length accommodation case can be brought to the deepest bottom of the recess, and the wire harness Can be effectively prevented.

  In addition, as described above, by providing a pair of projecting pieces that are externally fitted to the side wall outer surface of the connecting portion of the extra length housing case from the side wall outer surface of the harness rail connecting portion, the extra length housing connected to the front end of the harness rail The case can be easily positioned.

In the present invention, a curved convex portion may be provided continuously to the curved concave portion.
With this configuration, when viewed from the wire harness passing through the upper surface side of the curved convex portion, the bottom portion of the concave portion exists at a deeper position, even if a step of the connecting portion is formed at this position. The possibility that the wire harness is caught by the step becomes extremely low, and the effect of the present invention can be further enhanced.

  The wire harness inserted through the harness rail and the extra length housing case is provided with a caterpillar type protector, and the protector extends in the length direction on the belt-like flat plate and is provided with an interval in the width direction. A plurality of fold lines are bent into a cylindrical shape, and are cut in the width direction with an interval in the length direction to make one side continuous, and the other side is separated. It is preferable to be connected to each other without bending. In particular, in the present invention, it is preferable to use the caterpillar type protector, which is a quadrangular cylindrical shape by bending four folding lines, as an exterior material of a wire harness.

  As described above, in the present invention, since the curved recesses are formed in the inner surface of the side wall and the inner surface of the bottom wall of the connecting portion between the front end of the harness rail and the extra length accommodation case, the front end of the harness rail and the surplus Even if a step is generated in the connecting portion with the long housing case, the step can be present in a deep position of the curved concave portion, and the wire harness to be inserted can be prevented from being caught by the step. Therefore, it is possible to prevent damage to the wire harness that goes back and forth between the harness rail and the extra length accommodation case, and the wire harness can perform a smooth bending operation following the sliding operation of the slide seat.

It is a schematic perspective view which shows the wire harness wiring apparatus for slide sheets of this embodiment. It is the EE sectional view taken on the line of FIG. It is a schematic perspective view which shows the extra length accommodation case connected with the front end of a harness rail. (A) is an enlarged view of the main part of FIG. 3 showing the connecting portion between the harness rail and the extra length accommodation case, (B) is a partial cross-sectional view of the FF line of (A), (C) is of (B) It is a GG line partial sectional view. The caterpillar type protector exterior to a wire harness is shown, (A) is a perspective view, (B) is an enlarged development view, and (C) is an essential part enlarged view. The positional relationship of a seat rail, a harness rail, and a surplus length accommodation case, and a movement of a wire harness are shown, (A) is explanatory drawing in case a slide seat exists in a front position, (B) is a case where a slide seat exists in a back position. It is explanatory drawing. It is sectional drawing which shows the side wall which the connection part of the harness rail and extra length accommodation case in the 1st modification of this embodiment opposes. It is sectional drawing which shows the side wall which the connection part of the harness rail and extra length accommodation case in the 2nd modification of this embodiment opposes. A prior art example is shown, (A) is a whole perspective view, (B) is the HH sectional view taken on the line of (A). (A), (B) is an operation explanatory view of a conventional example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of the present invention.
In the wire harness routing device for a slide seat of this embodiment, the slide seat on the passenger seat side mounted on the automobile is a long slide seat that can slide about 400 mm to 1200 mm. As shown in FIG. 1 and FIG. A wire harness 3 is wired from the floor panel 2 to the slide sheet 1 in order to supply power to an electrical component (not shown) attached to 1.

  On the lower surface of the slide sheet 1, a pair of left and right leg portions 4 are provided in which a leg body 4 b is projected from a support member 4 a. The leg body 4b of each leg 4 is slidably attached to a pair of left and right seat rails 6 mounted on the floor panel 2. Each seat rail 6 has the structure shown in FIG. 2, and a shaft portion 4b-1 of a leg main body 4b projecting downward from a support member 4a of the leg portion 4 is inserted into the seat rail 6, and from the shaft portion 4b-1. The arm 4b-2 extends left and right, and a wheel 4b-3 pivotally supported on the outer surface of the arm 4b-2 is rotatably fitted in the side space 6a in the seat rail 6. The upper walls 6b of the left and right side spaces 6a sandwiching the upper opening at the center of the seat rail 6 are laid with moldings 5A and 5B on the upper surface thereof.

  On one side of the seat rail 6, a straight harness rail 7 is installed from the front end toward the rear, and an extra-length housing case 8 is connected to the front end of the harness rail 7. A wire harness 3 composed of a group of wires branched from a floor harness routed to the floor panel 2 is continuously wired to the extra length housing case 8 and the harness rail 7 and connected to the support member 4a of the leg portion 4 of the slide seat 1. At the same time, the wire harness 3 is passed through a slider 11 slidably fitted to the harness rail 7, and the wire harness 3 is wired in the slide sheet 1.

  The harness rail 7 includes a bottom wall 7a that is continuous in the length direction, a pair of side walls 7b that face each other, and a harness insertion portion 7A having a box-shaped cross section that includes a top surface 7c that is closed in the length direction. A slider sliding part 7B is provided that communicates with the opening on the other side of the upper surface of the harness insertion part 7A and projects in the length direction. Further, the moldings 5B and 5C are respectively locked and laid on a pair of upper walls 7d continuous in the length direction formed at the upper ends of the pair of outer walls of the slider sliding portion 7B.

  The extra length accommodation case 8 connected to the front end of the harness rail 7 includes a relatively shallow main body 8A, and a lid 8B that covers the upper opening of the main body 8A after the wire harness 3 is accommodated in the main body 8A. The bottom wall and the side wall of the main body 8A become the bottom wall 8a and the side wall 8b of the extra length accommodation case 8, and the upper wall of the lid 8B becomes the upper wall 8d of the extra length accommodation case 8. As shown in FIG. 3, the extra length housing case 8 comprising the main body 8A and the lid 8B is connected to the front end of the harness rail 7 and is located on the front end side of the harness rail 7; It comprises an elliptical extra-length accommodating portion 8Y that is curved in an arc shape from the front end of the portion 8X and is located on the side of the harness rail 7. In the surplus length accommodating portion 8Y, as shown in FIG. 6, the wire harness 3 to which the exterior material 30 is attached is turned and accommodated, and the wire harness 3 is connected to the floor panel 2 from the opening 8e provided on the front end side of the surplus length accommodating portion 8Y. It is pulled out to the side so that the floor harness can be connected to the connector. Further, the end portion of the exterior material 30 is fixed to the edge of the opening 8e.

  As shown in FIGS. 3 and 4, the connecting portion D between the harness rail 7 and the wire harness entrance / exit portion X of the extra length housing case 8 includes the connecting portion 7 </ b> D at the front end of the harness rail 7 and the wire harness entrance / exit portion 8 </ b> X. The rear end connecting portion 8D is formed. Specifically, the side wall 7b of the harness rail 7 and the side wall 8b of the wire harness entrance / exit 8X are connected by 7D and 8D, respectively, to form a connecting portion D, and the bottom wall 7a of the harness rail 7 and the wire harness entrance / exit The bottom wall 8a of the portion 8X is connected by 7D and 8D to form a connecting portion D.

  A curved concave portion 9 is formed on the inner surface of the opposing side wall of the connecting portion D between the harness rail 7 and the wire harness entry / exit portion 8X. In the present embodiment, as shown in FIG. 4C, a curved surface 9a that forms one half of the concave portion 9 is provided on the inner surface of the opposing side wall 7b of the connecting portion 7D of the harness rail 7, and the wire harness entrance / exit portion 8X is provided. A curved concave portion 9 is formed on the inner surface of the side wall of the connecting portion D by providing a curved surface 9b that forms the other half of the concave portion 9 on the inner surface of the opposing side wall 8b of the connecting portion 8D.

  A curved concave portion 10 is also formed on the inner surface of the bottom wall of the connecting portion D between the harness rail 7 and the wire harness entry / exit portion 8X. In the present embodiment, as shown in FIG. 4 (B), a curved surface 10a that forms one half of the concave portion 10 is provided on the inner surface of the bottom wall 7a of the connecting portion 7D of the harness rail 7, and the wire harness input / output portion 8X is connected. By providing a curved surface 10b that forms the other half of the concave portion 10 on the inner surface of the bottom wall 8a of the portion 8D, the curved concave portion 10 is formed on the inner surface of the bottom wall of the connecting portion D.

  Further, a pair of wire harness in / out portions 8X that are externally fitted to the outside surface of the side wall 8b of the connecting portion 8D of the wire harness input / output portion 8X and are connected to the harness rail 7 from the outer surface of the side wall 7b of the connecting portion 7D of the harness rail 7 are positioned and held. A protruding piece 7e is provided.

Further, the upper wall 8d of the wire harness entrance / exit 8X is inclined obliquely upward toward the front end of the harness rail 7, and the tip of the upper wall 8d is brought close to the front end of the upper wall 7d of the harness rail 7. In the present embodiment, the upper side of the opposing side wall 8b of the wire harness entrance / exit 8X is also inclined in accordance with the upper wall 8d to be inclined.
Further, the thickness of the upper wall 8d of the wire harness entry / exit part 8X inclined obliquely upward is gradually reduced toward the tip.

  An exterior member 30 is attached to the wire harness 3 that is slidably wired to the extra length housing case 8 and the harness insertion portion 7A of the harness rail 7. In the present embodiment, a square cylindrical caterpillar type protector 30 as shown in FIG. The protector 30 is assembled by bending a flat plate 40 made of a strip-like continuous long material shown in FIG. The flat plate 40 is provided with four folding lines 41, 42, 43, 44 extending in the length direction X at intervals in the middle of the width direction Y, and five sides S 1 in the width direction of the flat plate 40. -S5, the folding lines 41 to 44 are bent at a right angle, and both sides S1 and S5 in the width direction are overlapped so as to be assembled into a square cylinder as shown in FIG.

  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. The locking protrusions 45 are provided with cuts 45a on both sides of the base of the arcuate protrusion, and the locking sides 45b protrude on both sides. 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. Cuts 46a are provided at both ends in the lengthwise direction of the locking holes 46, and small diameter holes 46b are provided at the ends thereof. A locking side 45b is applied to the cut 46a, and the small diameter hole 46c prevents a crack from occurring at the tip of the cut 46a. The flat plate 40 is bent along the folding lines 41 to 44, and the locking projection piece 45 is inserted and locked into the locking hole 46 in a state where the sides S1 and S5 are overlapped so that the rectangular tube shape can be maintained.

  The flat plate 40 is provided with a cut line 48 in the width direction Y connecting the four folding lines 41 to 44 with an interval in the length direction X to separate the sides S2, S3, and S4. Small-diameter holes 48a are continuously provided at both ends of the cut line 48, that is, at positions in contact with the folding lines 41 and 44, to prevent cracks from occurring at the tip. Further, a circular arc cut 49 is provided at the center of the cut line 48 at the center of the side S3, and one side adjacent in the length direction is projected in an arc shape and the other is recessed in an arc shape. An uneven fitting portion is provided.

  As shown in FIG. 5C, the folding lines 41 to 44 provided on the flat plate 40 are cut into about 1/3 of the plate thickness to form a line having an arcuate cross section. The cut line 48, the locking hole 46, and the locking protrusion 45 are all formed by punching a flat plate. Therefore, after forming the flat plate 40, it is formed by punching or cutting.

  While the protector 30 is bent in advance by the folding lines 41 to 44, the locking protrusions 45 are not inserted into the locking holes 46, and the both sides S1 and S5 of the protector 30 in which the wire group of the wire harness 3 is bent in an open state. Insert through the opening. After inserting the electric wire group, S1 and S5 are overlapped, and the locking protrusion 45 is inserted and locked into the locking hole 46, and the electric wire group is inserted into the rectangular tube and covered.

  The slider 11 has a rectangular tubular wire harness insertion portion 11a to be fitted to the harness insertion portion 7A, and protrudes substantially perpendicularly upward to the wire harness insertion portion 11a to be fitted to the slider sliding portion 7B and at the upper end. It consists of a cylindrical wire harness lead-out portion 11b whose side is fixed to the support member 4a of the leg portion of the slide seat 1. The wire harness insertion part 11a and the wire harness lead-out part 11b communicate with each other so that the wire harness 3 inserted into the wire harness insertion part 11a is drawn out to the slide seat 1 through the wire harness lead-out part 11b. Yes. The other end of the exterior material (protector) 30 of the wire harness 3 inserted through the harness insertion part 7A is fixed to the wire harness insertion part 11a.

Next, the movement of the wire harness 3 that follows the sliding operation of the slide sheet 1 will be described.
FIG. 6A shows a case where the slide sheet 1 is at the front position, and FIG. 6B shows a case where the slide sheet 1 is at the rear position. When the slide sheet 1 is slid from the front to the rear, the wire harness 3 that is turned and accommodated in the surplus length accommodating portion 8Y of the surplus length accommodating case 8 passes through the wire harness in / out portion 8X and the harness rail 7 The bent portion C of the wire harness 3 located on the rear end side of the extra length accommodating portion 8Y moves forward while being inserted into the harness insertion portion 7A.

  On the other hand, when the slide sheet 1 slides from the rear to the front, the bending portion C in the extra length accommodation case 8 moves rearward, and the wire harness 3 inserted through the harness insertion portion 7A of the harness rail 7 accommodates the extra length. The case 8 is drawn into the extra length accommodating portion 8Y through the wire harness entrance / exit 8X, and is accommodated as an extra length portion.

In the present embodiment, as described above, the inner surface and the bottom wall of the side wall (7b, 8b) facing the connecting portion D (7D, 8D) between the front end of the harness rail 7 and the wire harness in / out portion 8X of the extra length housing case 8 (7a, 8a) Curved concave portions 9 (9a, 9b), 10 (10a, 10b) are formed on the inner surface. Therefore, even if a step occurs in the connecting portion D between the harness rail 7 and the harness entry / exit portion 8X of the extra-length storage case 8, the step can be present at the position S where the recesses 9 and 10 are deepened. The exterior material 30 of the wire harness 3 to be inserted is not caught by the step. Therefore, damage to the wire harness 3 that goes back and forth between the harness rail 7 and the extra length accommodation case 8 is prevented, and the wire harness 3 can perform a smooth bending operation following the sliding operation of the slide seat 1. .
In addition, the upper wall 8d of the wire harness entrance / exit 8X of the extra length housing case 8 is inclined obliquely upward toward the front end of the harness rail 7, and the tip of the upper wall 8d is brought close to the front end of the upper wall 7d of the harness rail 7. Therefore, even if the track of the wire harness 3 floats, the wire harness 3 can be smoothly moved in and out without the exterior material 30 of the wire harness 3 being caught on the edge of the upper wall 8d of the wire harness entrance / exit 8X. Can do.

FIG. 7 shows a first modification of the present embodiment.
In the first modified example, a curved concave portion formed on the inner surface of the opposing side wall (7b, 8b) of the connecting portion D (7D, 8D) between the front end of the harness rail 7 and the wire harness entrance / exit 8X of the extra length housing case 8 19 has a shape as shown in FIG. Although not shown, the recess formed on the inner surface of the bottom wall (7a, 8a) of the connecting portion D (7D, 8D) between the front end of the harness rail 7 and the wire harness entry / exit 8X of the extra length housing case 8 is also formed with the recess 19. It has the same shape.
Specifically, as shown in FIG. 7, the corners on the inner surface side of the opposing side wall 7b of the connecting portion 7D of the harness rail 7 are formed in an R shape (19a), and the connecting portion 8D of the wire harness entrance / exit portion 8X is opposed. The corner portion on the inner surface side of the side wall 8b is also formed in an R shape (19b), and a curved concave portion 19 is formed by abutting the two R shapes (19a, 19b).
The first modification also has the advantage that the same effect as that of the above embodiment can be obtained and the curved surface of the recess 19 can be easily processed.

FIG. 8 shows a second modification of the present embodiment.
In the second modification, a curved concave portion 29 is formed on the inner surface of the opposite side wall (7b, 8b) of the connecting portion D (7D, 8D) between the front end of the harness rail 7 and the wire harness entry / exit portion 8X of the extra length housing case 8. In addition to being formed, curved convex portions 28 are provided continuously on both sides of the concave portion 29. Although not shown, the inner surface of the bottom wall (7a, 8a) of the connecting portion D (7D, 8D) between the front end of the harness rail 7 and the wire harness entry / exit 8X of the extra length housing case 8 is also the side wall (7b, 8b). It has the same shape as the inner surface.
As seen from the wire harness 3 inserted through the upper surface side of the curved convex portion 28 by providing the curved convex portions 28 continuously on both sides of the concave portion 29 provided in the connecting portion D as in the second modification. The bottom portion S of the recess 29 exists at a deeper position, and even if a stepped portion of the connecting portion occurs at the position S, the possibility that the exterior material 30 of the wire harness 3 will be caught by the stepped portion becomes extremely low. The effect can be further enhanced.

DESCRIPTION OF SYMBOLS 1 Slide sheet 3 Wire harness 7 Harness rail 7A Harness insertion part 7B Slider sliding part 7D Connecting part 7a Bottom wall 7b Side wall 7d Upper wall 7e Protruding piece 8 Extra length accommodation case 8X Extra length accommodation part 8Y Extra length accommodation part 8D Connection part 8a Bottom wall 8b Side wall 8d Upper wall 9, 10, 19, 29 Curved concave portion 11 Slider 28 Curved convex portion 30 Exterior material (protector)
D connecting part

Claims (5)

A linear harness rail that is arranged rearward from the front end of the side surface of the seat rail for the slide seat and that slidably fits a slider that penetrates the wire harness that is wired to the slide seat;
An extra length accommodation case that is connected to the front end of the harness rail and turns and accommodates an extra length portion of the wire harness that follows the sliding movement of the slide seat;
With
A curved concave portion is formed in the facing position of the inner surface of the side wall of the connecting portion of the harness rail and the extra length housing case and the inner surface of the bottom wall,
A wire harness routing device for a slide seat, wherein the upper wall of the extra length accommodation case is inclined obliquely upward toward the front end of the harness rail.   2. The thickness of the upper wall that is inclined obliquely upward of the extra length accommodation case is gradually reduced toward the tip, and the tip of the upper wall is brought closer to the front end of the upper wall of the harness rail. The wire harness wiring device for slide sheets as described in 2.   A curved surface portion forming one side of the recess is provided on the inner surface of the side wall and the inner surface of the bottom wall facing the connecting portion of the harness rail, and on the inner surface of the side wall and the bottom wall facing the connecting portion of the extra length accommodation case. A curved surface portion that forms the other side of the concave portion is provided, and a pair of projecting pieces that are externally fitted to the outer surface of the side wall of the connecting portion of the extra length housing case are provided from the outer surface of the side wall of the connecting portion of the harness rail. The wire harness wiring device for a slide sheet according to claim 1 or 2.   The wire harness routing device for a slide seat according to any one of claims 1 to 3, wherein a curved convex portion is provided continuously to the curved concave portion.   The wire harness inserted through the harness rail and the extra length housing case is provided with a caterpillar type protector, and the protector extends in the length direction on the belt-like flat plate and is provided with an interval in the width direction. A plurality of fold lines are bent into a cylindrical shape, and are cut in the width direction with an interval in the length direction to make one side continuous, and the other side is separated. The wire harness routing device for a slide seat according to any one of claims 1 to 4, wherein the wire harness routing device is connected in a state where the slide seat is not bent.

Images