JP6015558B2 - Wire harness wiring structure for slide sheet - Google Patents

Description

  The present invention relates to a wire harness wiring structure for a slide seat, and more particularly, to easily attach a slider for inserting a wire harness routed from a floor side to a slide seat mounted on an automobile.

  Conventionally, as a device for easily assembling a wire harness routing device for a slide seat of this type to an automobile, a slide device is provided in Japanese Patent Application Laid-Open No. 2006-165853. As shown in FIGS. 9A to 9C, the apparatus fixes a rail component 100 including a lower case 101A, an upper case 101B, and a sheet metal rail 102 fixed to the lower case 101A to the floor. . As shown in FIG. 9C, a sliding portion 110b of a slider (protector) 110 through which an electric wire to be wired to a slide sheet is inserted into the electric wire accommodating portion 110a is slidably fitted to the rail 102. In order to interlock the slider 110 with the movement of the slide sheet 1, as shown in FIG. 9A, when the bracket 105 is fixed to the sheet 103 of the slide sheet with bolts B and the slider 110 is attached to the rail 102, As shown in FIG. 9C, the electric wire housing portion 110a of the slider 110 is positioned between the pair of contact walls 105a and 105b of the bracket 105.

In the conventional apparatus, when the slide sheet moves, one of the abutting walls 105 a and 105 b presses the electric wire housing portion 110 a of the slider 110, thereby allowing the slide sheet to move without connecting the slider 110 to the bracket 105. It is described as interlocking.
In addition, the electric wire accommodating portion 110a of the slider 110 is positioned with a gap where no tension is applied to the electric wire 200, and the gap between the abutting walls 105a and 105b is longer than the width of the electric wire accommodating portion 110b so that a gap is formed. It is described that the wire 200 is wired in a slack state between the other non-contact wall and the wire housing portion 110a.

Japanese Patent Laid-Open No. 2006-168583

  In the slide device of Patent Document 1, the shapes of the bracket 105 and the slider 110 fixed to the seat 103 of the slide sheet are very complicated, which increases the cost. Further, paragraph 0052 of Patent Document 1 describes that “when the bracket is attached to the seat and the protector (slider) is attached to the rail portion, the wire accommodating portion (110b) of the protector is positioned between each other”. Yes. However, there is a small dimensional difference between the width of the electric wire accommodating portion of the slider and the distance between the pair of abutting walls 105a and 105b of the bracket 105, and the electric wire is not slackened and tension is not applied between one abutting wall and the other. It is necessary to assemble so that the abutting wall is pressed against the electric wire housing portion. In addition, since the bracket is fixed to the slide seat and the slider is attached to the rail fixed to the floor, there is a problem that it becomes very difficult work and takes up work space in the automobile.

  As described above, the conventional apparatus has a configuration in which necessary parts are complicated, and there is a problem that the assembling work to the automobile becomes difficult and very troublesome. Therefore, an object of the present invention is to reduce the component cost and the work cost by simplifying and downsizing necessary parts and facilitating the assembly work.

In order to solve the above problems, the present invention provides:
A slider is slidably fitted to a harness rail arranged along the side surface of the seat rail of the slide sheet, and a wire harness for feeding power to the slide sheet is inserted into the slider and the slider is connected to the slide sheet. In the wire harness wiring device for slide sheets to be interlocked,
The slider includes an electric wire drawing frame that protrudes upward from a fitting portion with the harness rail, and has an electric wire outlet on an upper side surface of the electric wire drawing frame, and an outer shape is enlarged at an upper end of the electric wire drawing frame. Provided a locking head,
A transition part that protrudes from the accommodating portion that covers the locking head of the slider to the seat rail side and has a support shaft attached to the protruding end side;
A transition receiving part including a bearing concave part that is fixed to the slide sheet and supported by inserting a support shaft of the transition part from above,
There is provided a wire harness routing device for a slide sheet in which the slider that is slidably fitted to the harness rail is attached to the slide sheet via the transition part and the transition part.

The slider, the transition part and the transition part are all resin molded products,
While the locking head provided on the slider has a columnar shape or a spherical shape, the accommodating portion of the transition part has an insertion opening through which the locking head can be inserted on the lower surface, and the receiving portion is inserted into the locking head from above. Covering and assembling, and having a structure capable of absorbing the variation in the fixed position by providing a gap that allows the locking head to move up and down, left and right inside the housing portion , and from the wire outlet of the slider A configuration is adopted in which the wire harness that is pulled out is pulled out to the slide seat side by bypassing the outer surface of the transition part that covers the locking head .

While the support shaft of the transition part is rotatably supported by the bearing recess of the transition part, the transition part is fixed in advance to the side surface of the seat leg of the slide sheet, and the transition part is fixed to the slide sheet. The support shaft provided at the projecting end of the part over the bearing recess is configured to be inserted and assembled simply by dropping from above.

  As described above, in the wire harness routing device of the present invention, the crossover part is put on the locking head at the upper end of the wire lead frame provided so as to protrude upward from the slider, and the crossover part is fixed to the slide sheet. The slider can be attached to the slide sheet by the operation of dropping the support shaft of the transition part from above into the bearing recess in the upper surface opening of the transition receiving part. In this way, the operation of attaching the slider to the slide sheet can be extremely simplified. In addition, since only a small crossover part and a crossover part with a simple shape are required, the cost of the necessary parts can be reduced.

It is a perspective view showing the whole slide sheet and wire harness wiring device of an embodiment of the present invention. It is principal part sectional drawing of the wire harness wiring apparatus of the said embodiment. The harness rail of the said wire harness wiring apparatus, the electric wire surplus length accommodation case, and the assembly | attachment relationship of a slider are shown, (A) is a schematic plan view in the advance position of a slide sheet, (B) is the rear end position of a slide sheet. FIG. It is a perspective view which shows the connection part of the said slide sheet and a slider. (A) is a principal part enlarged front view of FIG. 4, (B) is a right view of (A). It is a schematic front view which shows the state which has attached the transition receiving part to the seat leg part of the slide seat. (A)-(C) are drawings which show the process of fitting the spindle of the said transition part to the bearing recessed part of a transition part. (A)-(C) are explanatory drawings which show the inclination state of a transition part. (A)-(C) are drawings which show a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 8 show an embodiment of the present invention.
In the present embodiment, as shown in FIG. 1, the passenger seat side slide sheet 1 mounted on the vehicle is a long slide sheet that can slide about 400 mm to 1200 mm, and electrical components (not shown) mounted on the slide sheet 1. The wire harness 3 (shown in FIG. 2) is routed from the floor to the slide seat 1 in order to supply power.

  As shown in FIG. 2, a pair of left and right seat legs 4 is provided on the lower surface of the seat frame of the slide seat 1 on the lower surface of the slide seat 1. Each seat leg 4 is slidably attached to a pair of left and right seat rails 6 mounted on the floor panel 2 below a carpet material 5 serving as a floor material. Each seat rail 6 has the structure shown in FIG. 2, and a shaft portion 4b-1 protruding from the main body 4a of the seat leg portion 4 is inserted into the seat rail 6, and the arm portion 4b-2 is moved left and right from the shaft portion 4b-1. The wheel 4b-3 that is extended and pivotally supported on the outer surface of the arm portion 4b-2 is rotatably fitted in the side space 6a in the seat rail 6.

As shown in FIG. 3, one straight harness rail 7 is installed from the front end to the rear along the side surface of the seat rail 6, and the extra length accommodation case 8 is connected to the front end of the harness rail 7. And the rear portion of the extra length housing case 8 is disposed on the side of the harness rail 7. The wire group of the wire harness 3 branched from the floor harness routed to the floor panel 2 is continuously wired to the extra length housing case 8 and the harness rail 7. After passing the wire harness 3 through the slider 9 slidably fitted to the harness rail 7, as shown in FIGS. 4 and 5B, after being pulled out from the wire outlet 9c provided in the slider 9, and to bypass the outer surface of the connecting part 10 covering the engaging head of the later-described slider 9 wire to slide the seat 1, to connect the wire harness and connectors of the wiring the wire harness 3 in the sliding seat 1 Yes.

  As shown in FIGS. 2 to 4, the slider 9 is connected to the seat leg portion 4 of the slide sheet 1 via the crossover part 10 and the crossover part 20, and in conjunction with the movement of the slide sheet 1, Is moved back and forth. More specifically, the crossover part 10 is attached to the slider 9 while the crossover part 20 is fixed to the seat leg 4 in advance, and the crossover part 10 is attached to the crossover part 20 to attach the slider 9 to the seat leg 4. It is linked to. The slider 9, the transition part 10 and the transition receiving part 20 are all made of a resin molded product.

  The harness rail 7 extends linearly in the front-rear direction, and a harness insertion portion 7a having a box-shaped cross section and a slider sliding portion 7b protruding in communication with one opening on the upper surface of the harness insertion portion 7a in the length direction. It is prepared for the full length. A surplus length accommodation case 8 is continuously installed at the front end of the harness rail 7, and the wire harness 3 is advanced in the surplus length accommodation case 8, bent at the front end, moved backward, and bent backward, again. It is inserted forward and pulled out from the wire harness outlet 8a provided on the front side to the floor side and connected to the floor harness.

  An exterior material is attached to the wire harness 3 that is slidably wired to the extra length housing case 8 and the harness insertion portion 7 a of the harness rail 7. In this embodiment, a square cylindrical caterpillar type protector 30 described later is used as the exterior material. The protector 30 is formed by bending and assembling a flat plate made of a long continuous material in a strip shape.

  The slider 9 slidably fitted in the harness insertion portion 7a of the harness rail 7 is externally fitted with the protector outer fitting portion 9a to the tip of the protector 30 and connected with an adhesive tape. On one side upper surface of the protector outer fitting portion 9a, an electric wire drawing frame 9b is slidably fitted to the slider sliding portion 7b and protrudes upward. A wire outlet 9c is provided on the upper side surface of the wire lead frame 9b.

  Further, a substantially cylindrical locking head 9d having an enlarged outer shape is provided on the upper end of the wire lead frame 9b of the slider 9 so as to project. The locking head 9d has an elliptical shape on both left and right sides, a flat upper and lower surface, and a so-called oval shape in cross section. The locking head 9d may be spherical and the shape is not limited.

  The transition piece 10 assembled to the locking head portion 9d of the slider 9 includes a substantially cylindrical storage portion 10a having an inner peripheral surface that is slightly larger than the locking head portion 9d, and from the storage portion 10a to the seat rail 6 side. It consists of a protruding portion 10b that protrudes and a support shaft 11 attached to the protruding end side of the protruding portion 10b. The projecting portion 10 b projects in a tapered manner toward the projecting end side with the lower surface inclined upward. An insertion port 10c through which the locking head 9d can be inserted is provided on the lower surface of the housing portion 10a. In order to attach the crossover part 10 to the upper part of the slider 9 with the slider 9 being fixed to the harness rail 7 fixed to the floor, the accommodation part 10a is placed on the locking head part 9d from above and is accommodated only by passing the insertion port 10c. The component 10 can be easily attached to the slider 9.

  As shown in FIGS. 4 and 6, the transition receiving part 20 connected to the transition part 10 has a mounting frame projecting a convex part 20 a that fits into a concave part 4 c provided on the outer surface of the seat leg part 4 of the slide sheet 1. A bearing recess 20h provided with an insertion port 20f at a position continuous to the lower end of the arc receiving surface 20e of the guide receiving portion 20d, a bearing receiving portion 20d protruding from the upper portion of the mounting frame portion 20b, a bearing recess 20h A side receiving plate 20i provided on the rear end side of 20h is provided. The bearing recess 20h has an upper wide portion 20hw continuous with the insertion port 20f and a lower portion 20hs. The dimension of the upper wide portion 20hw is larger than the diameter of the support shaft 11, and the support shaft 11 can rotate and move vertically and horizontally. The narrow part 20hs is pushed in from above to be fitted, and at the fitting position, the support shaft 11 is fixed in the narrow part 20hs, and the part 10 and the slider 9 are interlocked with each other when the bridge part 20 is moved back and forth. I have to.

  When assembling the transition part 10 to the transition part 20, the support shaft 11 of the transition part 10 is positioned above the bearing recess 20 h of the transition part 20 as shown in FIGS. Then, the support shaft 11 is brought into contact with the arc receiving surface 20e of the guide receiving portion 20d. Then, when it slides downward along the circular arc receiving surface 20e, the support shaft 11 reaches the insertion port 20f of the bearing recess 20h, as shown in FIG. 7B. The support shaft 11 is dropped into the bearing recess 20h, the support shaft 11 is pushed downward, and the support shaft 11 is fitted and fixed in the narrow width portion 20hs as shown in FIG. 7C. In this manner, the transition part 10 can be easily connected to the transition part 20, and the slider 9 can be interlocked with the movement of the seat leg 4 through the transition part 20 and the transition part 10.

  When the crossover part 10 is assembled to the crossover part 0, the crossover part 10 is in a state of covering the slider 9 fitted to the harness rail 7. Therefore, when the support shaft 11 of the transition part 10 is brought into contact with the upper portion of the arc receiving surface 20e of the guide receiving portion 20d, the support shaft 11 is positioned above the accommodating portion 10a as shown in FIG. The transition piece 10 is in an inclined posture. As shown in FIG. 8 (B), at the position where the support shaft 11 is lowered and fitted into the bearing recess 20h from this inclined posture, the upper surface of the transitional part 10 is in the horizontal orientation. As described above, it is necessary to change the posture of the transitional part 10 at the time of mounting. However, since the locking head 9d of the slider 9 is accommodated in the accommodation part 10a of the transitional part 10 with a gap in the vertical and horizontal directions, the slider It is possible to easily attach the crossover part 10 to the crossover part 20 by changing the posture of the crossover part 10 with respect to the nine locking heads 9d.

  Moreover, the position of the transition part 10 which covers the accommodating part 10a on the locking head part 9d of the slider 9 depends on the fitting state of the slider 9 to the harness rail 9, as shown in FIG. The position of the accommodating part 10a becomes high, and a slight deviation may occur in the vertical position and the horizontal position. The position of the transition receiving part 20 fixed to the seat leg portion 4 of the slide sheet 1 may be slightly shifted to the vertical position and the horizontal position. In any case, since the locking head portion 9d of the slider 9 is accommodated in the accommodating portion 10a of the transition part 10 with a gap, the accommodating portion 10a is positioned vertically and horizontally with respect to the locking head portion 9d. It is possible to adjust, and it is possible to absorb the shift of the fixing position of the transition receiving part 20 and the transition part 10.

  As described above, the seat leg 4 of the slide seat 1 and the slider 9 are connected to each other after the crossing part 10 is put on the locking head 9d of the slider 9 fitted to the harness rail 7 fixed to the floor, and then the crossover part. Since it is only necessary to insert 10 support shafts 11 into the bearing recess 20h of the transition receiving part 20 fixed in advance on the seat leg 4 from above, it is an extremely simple operation that can be performed by one worker with one hand. And does not require a large work space.

  As described above, since the slider 9 is connected to the seat leg 4 via the crossover part 10 and the crossover part 20, the slide 9 moves back and forth in the harness rail 7 in conjunction with the back and forth movement of the slide seat 1. To do. Specifically, FIG. 3A shows a case where the slide sheet 1 is at the front position, and FIG. 3B 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 accommodated in the extra length accommodation case 8 continues to the extra length accommodation case 8 while being bent at the front end side of the extra length accommodation case 8. While being inserted into the harness insertion portion 7 a of the harness rail 7, the bent portion on the rear end side in the extra length housing case 8 moves forward. On the other hand, when the slide sheet 1 slides from the rear to the front, the rear bent portion in the extra length housing case 8 moves rearward, and the wire harness 3 inserted into the harness insertion portion 7a of the harness rail 7 is extra length. It is drawn into the storage case 8 and stored as an extra length portion.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention, such as changing the shape of the extra cable length case.

DESCRIPTION OF SYMBOLS 1 Slide seat 2 Floor 3 Wire harness 4 Seat leg part 6 Seat rail 7 Harness rail 7a Harness insertion part 7b Slider sliding part 8 Extra length accommodation case 9 Slider 9b Electric wire extraction frame 9d Locking head 10 Transition part 10a Accommodation part 11 Spindle 20 Crossover parts 20h Bearing recess

Claims (3)

A slider is slidably fitted to a harness rail arranged along the side surface of the seat rail of the slide sheet, and a wire harness for feeding power to the slide sheet is inserted into the slider and the slider is connected to the slide sheet. In the wire harness wiring device for slide sheets to be interlocked,
The slider includes an electric wire drawing frame that protrudes upward from a fitting portion with the harness rail, and has an electric wire outlet on an upper side surface of the electric wire drawing frame, and an outer shape is enlarged at an upper end of the electric wire drawing frame. Provided a locking head,
A transition part that protrudes from the accommodating portion that covers the locking head of the slider to the seat rail side and has a support shaft attached to the protruding end side;
A transition receiving part including a bearing concave part that is fixed to the slide sheet and supported by inserting a support shaft of the transition part from above,
A wire harness routing device for a slide sheet, wherein the slider that is slidably fitted to the harness rail is attached to the slide sheet via the transition part and a transition part. The slider, the transition part and the transition part are all resin molded products,
While the locking head provided on the slider has a columnar shape or a spherical shape, the accommodating portion of the transition part has an insertion opening through which the locking head can be inserted on the lower surface, and the receiving portion is inserted into the locking head from above. Covering and assembling, and having a structure capable of absorbing the variation in the fixed position by providing a gap that allows the locking head to move up and down, left and right inside the housing portion , and from the wire outlet of the slider The wire harness routing device for a slide seat according to claim 1, wherein the wire harness to be pulled out is configured to bypass the outer surface of a transition part that covers the locking head and pull out to the slide seat side .   The transition part is rotatably supported by the bearing recess, and the transition part connected to the slider via the transition part is fixed in advance to the side surface of the seat leg of the slide sheet, The slide according to claim 1 or 2, wherein a support shaft provided at a protruding end of the transition part is inserted and assembled in the bearing recess of the transition part fixed to the slide sheet in a state of dropping from above. Wire harness routing device for seats.

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