JP2015000650A - Wire harnessing device for slide sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate catch in wiring harness and reinforce an extra length housing case in a continuous position between a harness rail and the extra length housing case.SOLUTION: A wire harnessing device includes a harness rail installed in a seat rail for a slide sheet, and an extra length housing case continuously arranged in the front end of a harness insertion part of the harness rail. The extra length housing case comprises a body and a cover. The circumferential wall of the cover is a double wall comprising an inner wall and an outer wall sandwiching the circumferential wall of the body. Also, a J-shaped enfolding wall is provided in which a linear part in parallel to the circumferential wall is continuously projected from an inner surface of the circumferential wall surrounding a front end entrance of the harness insertion part of the harness rail and a rear end entrance of the body of the continuous extra length housing case to a circular arc part. The inner wall of the cover is enfolded between the enfolding wall and the sidewall, and the wiring harness reciprocating between the front end entrance of the harness rail and the rear end entrance of the extra length housing case is brought into slide contact with the circular arc part of the enfolding wall.

Description

  The present invention relates to a wire harness routing device for a slide seat, and more particularly, to smoothly interlock a wire harness with the forward and backward movement of a slide seat and to reinforce an extra length accommodation case that accommodates the wire harness. .

  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 back-and-forth movement of the sheet. For this reason, the wire harness is provided with an extra length. The slide size of an automobile slide seat is usually about 240 mm to 300 mm at the maximum, but recently, a long slide seat with a maximum size of about 400 mm to 1200 mm so that a large space can be opened in front of or behind the seat. Is also provided.

  As a wire harness routing device that is routed between this type of vehicle body floor and a slide seat, Japanese Patent Laying-Open No. 2010-193599 (Patent Document 1) shows FIGS. 8A, 8B, and 9A. A device shown in B) has been proposed. In the apparatus, a harness rail 102 for inserting the wire harness 110 adjacent to the side of the seat rail 101 for the slide seat 100 is laid on the floor of the passenger compartment, and 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 branches off from the floor harness, is covered with an exterior material 111 made of a corrugated tube, is inserted into the extra length housing case 103, and is then inserted into the harness rail 102. The wiring is passed through the slider 104 that slides in conjunction with the slide sheet 100 in the harness rail 102 and is wired to the slide sheet 100.

  In the apparatus, as shown in FIG. 9A, when the slide seat moves to the front side (A side), the extra length portion of the wire harness 110 is folded back in a U shape so that On the other hand, when the slide seat moves to the rear side (B side), the slider 104 also moves backward as shown in FIG. 9B, and the extra length of the wire harness 110 in the extra length containment case 103 becomes the harness rail. To 102. Thus, the wire harness reciprocates between the harness rail 102 and the extra length accommodation case 103 in conjunction with the back and forth movement of the slide seat.

JP 2010-193599 A

  In the conventional apparatus, the harness rail 102 and the extra length housing case 103 are provided as separate bodies, and are mounted on the vehicle in a state where the wire harness insertion portion is continuous. However, if the harness rail 102 and the extra length accommodation case 103 are continued with a slight deviation, a step is generated in the continuous portion. The exterior material 111 of the wire harness 110 that reciprocally moves between the harness rail 102 and the extra-length housing case 103 is caught at this step, and the smooth bending operation of the wire harness 110 is hindered, and the exterior material 111 and the internal wire harness 110 are prevented. May cause damage.

  Further, the extra-length accommodating case 103 is a wide and shallow case so that the wire harness can be bypassed in the extra-length accommodating case 103, and the extra-length accommodating case 103 is a compartment floor material on which a slide seat is mounted. It is installed in the front and the lower part of the side. A place where the extra-length storage case 103 is installed is a place where a passenger can step on or place luggage. Therefore, a load is applied to the extra length accommodation case 103 from above, and the extra length accommodation case 103 may be damaged.

  The present invention has been made in view of the above problems, and a wire harness that moves through a harness rail and a surplus length accommodation case following the back and forth movement of the slide seat is a continuous connection between the harness rail and the surplus length accommodation case. It is an object of the present invention to prevent the occurrence of damage or the hindering of a smooth bending operation by being caught by a step generated in the portion, and to increase the strength of the extra length accommodation case 103.

In order to solve the above-mentioned problems, the present invention is arranged in a front-rear direction along a side surface of a seat rail for a slide seat mounted on a vehicle and slidably fits a slider through which a wire harness wired to the slide seat is inserted. A slider sliding portion to be joined, a harness rail having a harness insertion portion for inserting a wire harness to be passed through the slider,
It is arranged continuously at the front end of the harness insertion portion of the harness rail, and includes an extra length accommodation case that accommodates the wire harness by turning it,
The extra length accommodation case includes a main body that is surrounded by a bottom wall and a peripheral wall to provide an insertion space for a wire harness, and a lid that closes an upper surface opening of the main body, and the peripheral wall of the lid is an inner wall that sandwiches the peripheral wall of the main body And at the boundary position between the front end entrance / exit of the harness insertion portion of the harness rail and the rear end entrance / exit of the main body of the extra length accommodation case, from the inner surface of the peripheral wall of the main body of the extra length accommodation case A J-shaped embedding wall that is continuous with the circular arc portion and protrudes in parallel with the peripheral wall, embraces the inner wall of the lid between the embedding wall and the peripheral wall, and the harness There is provided a wire harness routing device for a slide seat configured to slide the arc portion of the embedding wall to the wire harness that reciprocates between a front end entrance of the rail and a rear end entrance of the extra length accommodation case. .

As described above, holding the peripheral wall of the main body of the extra length accommodation case between the double walls of the lid, increasing the strength of the extra length accommodation case, and holding the inner wall of the double wall as the holding It is possible to prevent the inner wall from falling inward by embracing it with the recessed wall, and to further increase the strength of the extra length accommodation case.
Further, a step is likely to occur at the boundary where the front end entrance / exit of the harness insertion portion of the harness rail and the rear end entrance / exit of the harness insertion portion of the extra length accommodation case are continuous, but the arc portion of the holding wall at this boundary position Is protruding. Therefore, even if there is a slight deviation at the continuous position, the wire harness can be slid along the curved surface of the arc portion of the holding wall and the wire harness can be smoothly moved without being caught. Therefore, it is possible to prevent the wire harness from being caught and damaged by the step generated at the continuous position, which is a conventional problem.

It is preferable that a connection wall that is fitted on the front outer surface of the both side walls of the harness rail is provided on both side walls sandwiching the rear end entrance of the harness insertion portion of the extra length housing case.
Specifically, the rear end entrance of the harness insertion part of the extra length housing case is provided with a partition wall at a position facing the embedding wall, and the front end of the partition wall is opposed to the arc part of the embedding wall, A connecting wall on one side bent in a direction away from the front end of the harness rail through the rounded portion, the connecting wall on the one side abutting against a side wall of a front end entrance of the harness insertion portion of the harness rail, and the holding A connecting wall on the other side that contacts the outer surface of the other side wall of the harness rail is provided from the tip of the peripheral wall provided with the wall.

  With the above configuration, the front end entrance and exit of the harness insertion portion of the harness rail and the rear end entrance and exit of the main body of the extra length housing case can be positioned and held with high accuracy, and the holding wall can be reliably disposed at the boundary of the continuous position.

The wire harness that is inserted into the extra-length housing case and the harness rail is exteriorized with an exterior material made of a caterpillar type protector,
The protector is formed in a cylindrical shape by bending a plurality of folding lines extending in the length direction on the belt-like flat plate and spaced in the width direction, and spaced in the length direction in the width direction. It is preferable that a notch is made to make one side continuous and the other side is separated and connected to bend on one side but not bend on the other side. 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.
In addition, although the said caterpillar type protector is used suitably for the exterior material of a wire harness, you may armor with the exterior material of another structure.

As described above, in the present invention, the J-shaped embedding from the peripheral wall of the main body of the extra length housing case into the continuous portion of the front end of the harness insertion portion of the harness rail and the rear end of the wire harness insertion portion of the extra length housing case In order to hold the inner wall of the peripheral wall consisting of the double wall of the lid covering the main body of the extra length accommodation case so as to be held by the embedding wall, the strength of the extra length accommodation case, particularly the strength of the peripheral wall Can be increased. Therefore, even if the extra-length storage case is stepped from above or receives an impact load with a dropped luggage, it is possible to prevent the lid and the main body from being crushed by the reinforced peripheral wall and causing damage to the internal wire harness.
In addition, since the arc portion of the holding wall is located at the boundary between the harness rail and the wire harness insertion portion of the extra length accommodation case, the wire harness to be inserted is inserted into the holding wall even if there is a slight deviation in the boundary. It can move along the arc. Therefore, it can prevent that the wire harness which reciprocates between a harness rail and a surplus length accommodation case catches at a boundary position, and a damage arises, and can make a wire harness follow a slide operation | movement of a slide seat smoothly.

It is a schematic perspective view which shows the wire harness wiring apparatus for slide sheets of embodiment of this invention. It is principal part sectional drawing of FIG. The extra length accommodation case is shown, (A) is a schematic perspective view, (B) is the II sectional view taken on the line of (A). (A) is the expansion partial perspective view of the harness rail continuous side of the main body of a surplus length storage case, (B) is a perspective view which shows the state which pinched | interposed the surrounding wall of the main body shown to (A) with the double wall of a lid | cover. (A) is a perspective view of the continuous part of a surplus length storage case and a harness rail, (B) is a schematic plan view of (A). The caterpillar type protector exterior to a wire harness is shown, (A) is a perspective view, and (B) is an enlarged development view. The positional relationship of a seat rail, a harness rail, and a surplus length accommodation case, and the movement of a wire harness are shown, (A) is explanatory drawing when a slide seat advances, (B) is explanatory drawing when a slide seat retracts. . A prior art example is shown, (A) is a whole perspective view, (B) is the FF sectional view taken on the line of (A). (A), (B) is operation | movement explanatory drawing of the said prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of the present invention.
The wire harness routing device for a slide seat according to the embodiment is a long slide seat that can slide about 400 mm to 1200 mm on the slide seat on the passenger seat side that is mounted on an automobile. As shown in FIGS. 1 and 2, a wire harness 3 is routed from the floor panel 2 side to the slide sheet 1 in order to supply power to an electrical component (not shown) mounted on the slide sheet 1.

  The lower surface of the slide sheet 1 is provided with a leg portion 4 in which a pair of left and right leg main bodies 4b are projected from a support member 4a. Each leg main body 4b is slidably attached to a pair of left and right seat rails 6 installed 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. On the upper wall 6b of the left and right side spaces 6a sandwiching the upper opening at the center of the seat rail 6, moldings 5A and 5B are laid on the upper surface of the carpet material constituting the passenger compartment floor material.

  On one side of the seat rail 6, a single linear frame-shaped harness rail 7 is installed from the front end toward the rear, and an extra-length housing case 8 is continuously arranged at the front end of the harness rail 7. The floor harness routed on the floor panel 2 and the wire harness 3 to be connected to the connector are continuously inserted into the extra length housing case 8 and the harness rail 7. A wire that passes through the wire harness 3 through a slider 11 that is coupled to the support member 4a of the leg portion 4 of the slide sheet 1 and that is slidably fitted to the harness rail 7 so that the wire harness 3 is wired in the slide sheet 1 The harness and connector are connected.

  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. A slider 11 is slidably fitted to the slider sliding portion 7B, and the upper portion of the slider 11 projects from between the moldings 5B and 5C.

  As shown in FIG. 3, an extra-length housing case 8 that is continuous with the front end of the harness rail 7 has a relatively shallow main body 8A and a wire harness 3 that is housed in the main body 8A, and then the upper surface of the main body 8A. The cover 8B is covered. The extra length accommodation case 8 including the main body 8A and the lid 8B has a substantially U shape in plan view. The main body 8A is inserted in a space 8c surrounded by a bottom wall 8a and a peripheral wall 8b by bypassing the wire harness 3 covered with an exterior material made of a caterpillar type protector 30 described later in a U shape.

  The rear end side of the extra length housing case 8 is partitioned at the center in the width direction by a semicircular partition wall 8d, and is partitioned into wire harness insertion portions 8P1 and 8P2. The rear end entrance 8f of the wire harness insertion portion 8P1 is continued to the front end entrance 7s of the wire harness insertion portion 7A of the harness rail 7, while the rear end opening of the wire harness insertion portion 8P2 is used as the outlet 8e of the wire harness 3. In the vicinity of the outlet 8e, the wire harness 3 is fixed to the extra length housing case 8 via a clamp (not shown), and the wire harness drawn out from the outlet 8e is connected to the floor harness through a connector.

  As shown in FIG. 3B, the peripheral wall 8w of the lid 8B of the extra length accommodation case 8 is a double wall composed of an inner wall 8i and an outer wall 8o that sandwich the peripheral wall 8b of the main body 8A. And, as shown in FIG. 4, from the inner surface of the peripheral wall 8b of the main body 8A surrounding the rear end entrance 8f of the wire harness insertion portion 8P1, the straight line portion 9b is connected to the arc portion 9a in parallel with the peripheral wall 8b. A protruding J-shaped embedding wall 9 is provided. The tip of the inner wall 8i of the peripheral wall 8w of the double wall of the lid 8B is inserted and held between the holding wall 9 and the peripheral wall 8b.

  The circular arc portion 9 a of the holding wall 9 is located at the boundary between the front end entrance 7 s of the harness insertion portion 7 A of the harness rail 7 and the rear end entrance 8 f of the harness insertion portion 8 P 1 of the extra length housing case 8. A connecting wall 12A that abuts against the outer surface of the front end side of the side wall 7d of the harness rail protrudes from the front end of the peripheral wall 8b of the main body 8A that projects the embedding wall 9, and the rear end of the arc portion 9a contacts the front end of the side wall 7d. I am letting.

  As shown in FIG. 5, the arcuate portion 9a of the embedding wall 9 and the distal end side of the partition wall 8d are positioned across the rear end entrance 8f of the harness insertion portion 8P1, and the rounded portion is formed from the distal end of the partition wall 8d. A connecting wall 12B is provided that is bent in the separating direction via 12Br. The connection wall 12B and the connection wall 12A are fitted on the outer surfaces of both side walls of the harness rail 7 so as to be fitted externally, and the continuous position of the harness rail 7 and the extra length accommodation case 8 can be positioned and held.

  As described above, at the continuous position of the harness rail 7 and the extra length accommodation case 8, the front end of the arc portion 9 a of the holding wall 9 is brought into contact with the front end of the side wall 7 d on one side of the harness rail 7. Moreover, the front side wall of the harness rail 7 is externally fitted by the connection walls 12A and 12B. As a result, positioning can be continued with high accuracy so that a step is not generated at the boundary of the continuous portion.

  An exterior material composed of a caterpillar type protector 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. The protector 30 has a rectangular tube shape as shown in FIG. 6 (A), and is assembled by bending a flat plate 40 made of a strip-like continuous long material shown in FIG. 6 (B). 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. As shown in FIG. 6 (A), it is assembled into a square cylinder by partitioning into S5, folding the folding lines 41 to 44 at a substantially right angle, and overlapping both sides S1 and S5 in the width direction.

  Further, locking protrusions 45 are provided on the side edges of one side S1 on both sides in the width direction of the flat plate 40 so as to protrude in the length direction X, and locked to the other side S5 of the flat plate 40. An elongated locking hole 46 for inserting and locking the protruding piece 45 is provided. 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. The folding lines 41 to 44 provided on the flat plate 40 have a thin cross-sectional arc shape.

  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.

  As shown in FIG. 2, the slider 11 has a rectangular tubular wire harness insertion portion 11a to be fitted into the harness insertion portion 7A, and protrudes upward with respect to the wire harness insertion portion 11a, and a slider sliding portion 7B. And a cylindrical wire harness lead-out portion 11b whose upper end 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 pulled out to the slide seat 1 side through the wire harness lead-out part 11b. The other end of the protector 30 of the wire harness 3 inserted into 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. 7A shows a state when the slide sheet 1 is moving forward, and FIG. 7B shows a state when the slide sheet 1 is moved backward. When the slide sheet 1 is slid from the front to the rear, the wire harness 3 that is turned and accommodated in the extra length accommodation case 8 is inserted into the harness insertion portion 7A of the harness rail 7 through the rear end entrance 8f. To go.
On the other hand, when the slide sheet 1 slides from the rear to the front, the bent portion C of the wire harness 5 in the extra length housing case 8 moves forward and the wire harness 3 inserted into the harness insertion portion 7A of the harness rail 7 is used. Is drawn into the extra length accommodation case 8 and accommodated as an extra length portion.

  In the present invention, the peripheral wall 8w of the lid 8B of the extra length storage case 8 is a double wall, the peripheral wall 8b of the main body 8A is sandwiched, and the inner wall 8i of the double wall of the lid 8 is the tip of the peripheral wall of the extra length storage case 8 Since it is clamped so as to be held by the holding wall 9 projecting from the side, it is possible to prevent the inner wall 8i from falling inward. As described above, since the peripheral walls 8b and 8w arranged in the vertical direction of the extra length accommodation case 8 are reinforced, the extra length accommodation case 8 is easy even when a load is applied from above by a passenger stepping on or dropping of luggage. The inner wire harness 3 can be protected without being crushed.

  Further, the embedding wall 9 functioning as a reinforcement for the peripheral wall 8b of the main body 8A and the peripheral wall 8w of the lid 8B is provided with an arcuate portion 9a so as to be positioned at the boundary with the harness rail 7, and the harness rail 7 and the extra length accommodation case 8 Since the wire harness is held in the continuous position and is slidably contacted with the arc portion 9a of the wall 9, it is possible to prevent the protector 30 of the wire harness 3 from being caught at the boundary.

  The present invention is not limited to the above-described embodiment. For example, the wire harness is curved at the front end side in the surplus length accommodation case and is moved backward, and the rear end side is curved and moved forward again to be pulled out from the outlet to the floor side. Also good.

DESCRIPTION OF SYMBOLS 1 Slide sheet 3 Wire harness 7 Harness rail 7A Harness insertion part 7B Slider sliding part 8 Extra length accommodation case 8A Main body 8b Peripheral wall 8B Lid 8w Peripheral wall 8i Inner wall 8o Outer wall 9 Embracing wall 9a Arc part 11 Slider 12A, 12B Connection wall 30 Protector (exterior material)

Claims (3)

A slider sliding portion that is disposed in the front-rear direction along a side surface of a seat rail for a slide seat mounted on a vehicle and that slidably fits a slider that passes through a wire harness that is wired to the slide seat; and A harness rail having a harness insertion part for inserting a wire harness to be passed;
It is arranged continuously at the front end of the harness insertion portion of the harness rail, and includes an extra length accommodation case that accommodates the wire harness by turning it,
The extra length accommodation case includes a main body that is surrounded by a bottom wall and a peripheral wall to provide an insertion space for a wire harness, and a lid that closes an upper surface opening of the main body, and the peripheral wall of the lid is an inner wall that sandwiches the peripheral wall of the main body And at the boundary position between the front end entrance / exit of the harness insertion portion of the harness rail and the rear end entrance / exit of the main body of the extra length accommodation case, from the inner surface of the peripheral wall of the main body of the extra length accommodation case A J-shaped embedding wall that is continuous with the circular arc portion and protrudes in parallel with the peripheral wall, embraces the inner wall of the lid between the embedding wall and the peripheral wall, and the harness A wire harness routing device for a slide seat configured such that an arc portion of the embedding wall is slidably brought into contact with the wire harness that reciprocates between a front end entrance of the rail and a rear end entrance of the extra length accommodation case.   The wire harness for a slide seat according to claim 1, wherein connection walls are provided on both side walls sandwiching a rear end entrance of the harness insertion portion of the extra length accommodation case so as to be fitted on front outer surfaces of both side walls of the harness rail. Routing device. The wire harness that is inserted into the extra-length housing case and the harness rail is exteriorized with an exterior material made of a caterpillar type protector,
The protector is formed in a cylindrical shape by bending a plurality of folding lines extending in the length direction on the belt-like flat plate and spaced in the width direction, and spaced in the length direction in the width direction. The wire for a slide sheet according to claim 1 or 2, wherein one side is made continuous by cutting and the other side is separated and connected in a state of being bent on one side but not bent on the other side. Harness routing device.

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