JP5264253B2 - Wire harness wiring structure in vehicle seat - Google Patents

Description

  The present invention relates to a wiring harness wiring structure in a vehicle seat, and in particular, improves wiring workability and at the same time prevents damage to the wiring harness due to biting with a side frame below the vehicle seat, and the like. The present invention relates to an improvement for improving the durability of a harness.

  The vehicle seat has an electric seat device that adjusts the position of the seat cushion in the longitudinal and vertical directions according to the posture of the passenger, and the reclining operation of the seat back, and an airbag between the passenger and the side door. There are some which are provided with an airbag unit device to be deployed, and in a vehicle seat on which such a device is mounted, a wire harness is routed for supplying power to the electric component.

  FIG. 4 shows a conventional example of a vehicle seat 101 in which a wire harness is routed, and FIG. 5 shows a wire harness 105 introduced into the seat from the side frame 103 below the vehicle seat 101 shown in FIG. It is an enlarged view of the routing structure.

As shown in FIG. 5, the wire harness 105 is introduced from the outside of the seat through the harness insertion hole 104 formed through the side frame 103 at the lower part of the seat and introduced into the seat. The seat cushion 107 movably mounted and the electric parts incorporated in the seat back 109 are routed.
This type of wiring harness wiring structure is also disclosed in Patent Document 1 below.

JP 2002-264710 A

  However, as shown in FIG. 5, in the conventional routing structure in which the wire harness 105 is introduced into the vehicle seat 101 from the harness insertion hole 104 formed through the side frame 103, the wire harness is inserted into the harness insertion hole 104. The work to do was troublesome, and the problem was that the routing workability was poor.

  Further, the seat cushion 107 of the vehicle seat 101 is often configured to be slidable in the front-rear direction of the vehicle in order to adjust the seating position, and is fixed to the seat cushion 107 when the seat cushion 107 is slid. The wire harness being pulled may be pulled or shaken, rubbing against the edge of the harness insertion hole 104, or being bitten between the side frame 103 and the seat cushion 107, thereby damaging the harness was there.

  Moreover, in the conventional wire harness wiring structure in the vehicle seat, the wire harness 105 is inserted into the harness insertion hole 104 in a bundled bundle state. The wire harness 105 in such a bundled state is difficult to bend when it is a thick bundle, and when the seat cushion 107 is slid, a large operating force is required to bend the wire harness, or the wire harness cannot be forced. As a result, the wire harness is easily damaged.

  An object of the present invention is to solve the above-described problems, and can improve the routing workability when a wire harness is introduced from the side frame under the vehicle seat into the seat, and is engaged with the side frame. An object of the present invention is to provide a wire harness routing structure in a vehicle seat that can prevent the wire harness from being damaged due to the insertion of the wire harness and improve the durability of the wire harness.

The above object of the present invention is achieved by the following configurations.
(1) a vehicle seat having a side frame and a seat cushion mounted on the side frame;
A wire harness introduced from the side frame into the vehicle seat and routed to each part inside the vehicle seat;
A wiring harness wiring structure in a vehicle, comprising:
The wire harness is introduced into the vehicle seat from outside the vehicle seat, straddling the upper edge of the side frame,
The wire harness that straddles the side frame at the top of the side frame at the same time as preventing the wire harness from directly contacting the side frame at the portion of the side frame that the wire harness straddles. longitudinal you movably accommodated in a direction, the wire harness installation structure in a vehicle seat, characterized in that the slider is equipped with a slide groove to be fitted on the lower surface on the upper edge of the side frame.

(2) The seat cushion is mounted on the side frame so as to be movable in the front-rear direction of the vehicle, and the slider slides on the side frame together with the seat cushion. The wire harness wiring structure in the vehicle seat as described in 1).

(3) The wire harness routing structure in the vehicle seat according to (1) or (2), wherein the slider is provided with locking means for locking the wire harness.

  According to the configuration of (1) above, when the wire harness is introduced into the vehicle seat from the outside of the seat, or when the wire harness is pulled out from the inside of the vehicle seat to the outside of the seat, the wire harness is attached to the side frame under the vehicle seat. Compared to the conventional case where the wire harness had to be inserted into the harness insertion hole formed in the side frame in order to straddle the upper edge, the wire harness can be easily led out and improved in workability. be able to.

Further, at a portion crossing the wire harness on the side frame, and at the same time to prevent the wire harness is in direct contact with the side frame, you wire harness extends across the upper side frame to be movable in the longitudinal direction of the vehicle Since the slider having the slide groove on the lower surface is fitted to the upper edge of the side frame , the seat cushion is moved in the longitudinal direction of the vehicle to adjust the seat length, for example. Even when the harness is shaken, the wire harness can be moved on the side frame without being in contact with the side frame while being accommodated in the slider, preventing the wire harness from being damaged due to biting with the side frame, etc. And durability of a wire harness can be improved.

  Further, according to the configuration of (2), even when the seat cushion is moved in the longitudinal direction of the vehicle, for example, for adjusting the seat length, no relative movement occurs between the slider and the seat cushion. The slider and the wire harness can be prevented from sliding, and the wire harness can be prevented from being rubbed and damaged.

  Further, according to the configuration of (3) above, the wire harness is fixed to the slider by the locking means, and the wire harness can be prevented from vibrating on the slider due to vehicle vibration or the like. Generation of abnormal noise due to vibration or the like can be prevented.

According to the wire harness wiring structure in the vehicle seat according to the present invention, the wire harness can be led into and out of the vehicle seat only by straddling the wire harness over the upper edge of the side frame at the lower part of the vehicle seat. This eliminates the need for troublesome work such as insertion of the cable, thus improving the routing workability.
In addition, since the wire harness straddling the side frame is prevented from direct contact with the side frame by the slider, the wire harness is prevented from being damaged due to biting with the side frame and the durability of the wire harness. Can be improved.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  Hereinafter, a preferred embodiment of a wire harness routing structure in a vehicle seat according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of an embodiment of a wire harness wiring structure in a vehicle seat according to the present invention. FIG. 2A is a perspective view of a state in which the seat cushion of the vehicle seat shown in FIG. FIG. 2 (b) is a perspective view showing the position of the slider at the time of (a), FIG. 3 (a) is a perspective view showing a state in which the seat cushion of the vehicle seat shown in FIG. FIG. 3B is a perspective view showing the position of the slider at the time of FIG.

  The wire harness wiring structure in the vehicle seat according to this embodiment is configured such that the wire harness 9 is introduced into the seat from the side frame 11 at the bottom of the vehicle seat and routed to each part inside the seat. It is a cable structure.

  The wire harness 9 has a connector 13 connected to a supply-side end portion 9a that is pulled out of the seat. This connector 13 is connected to another harness on the passenger compartment side. The seat inner side of the wire harness 9 is branched into a plurality of branch harnesses 9b, 9c, and 9d, and is connected to each electric part (electric device) in the seat.

  In the case of this embodiment, the site | part which becomes the sheet | seat inside side of the wire harness 9 straddles the upper edge of the side frame 11, and is introduce | transduced into the sheet | seat inside from the sheet | seat exterior.

  In the case of this embodiment, the slider 31 which prevents the wire harness 9 from contacting the side frame 11 directly is equipped in the site | part which the wire harness 9 of the side frame 11 straddles.

  The slider 31 is made of resin and is fitted in the upper edge 12 of the side frame 11 with a slide groove 31b formed on the lower surface of the substantially rectangular parallelepiped slider main body 31a. It is arranged to move freely.

  The upper surface of the slider main body 31a is a harness mounting portion 31c on which the wire harness 9 straddling the side frame 11 is placed. The wire harness 9 placed on the harness placing portion 31c is held on the harness placing portion 31c by the locking means 33 protruding from the harness placing portion 31c. The locking means 33 has an arm shape that holds the wire harness 9 placed on the harness placement portion 31c from above.

  That is, the wire harness 9 straddling the side frame 11 is placed on the harness placement portion 31 c of the slider 31, is pressed by the locking means 33, and is accommodated and held on the slider 31. In this embodiment, the portion of the wire harness 9 that is pressed by the locking means 33 is not bound, and the wire harness 9 is distributed and pressed in a flat shape. Therefore, the height of the locking means 33 can be reduced.

  The branch harnesses 9b, 9c, and 9d in the seat that have passed through the slider 31 are not illustrated, but are appropriately bound to the seat cushion 25 that is mounted on the side frame 11 so as to be movable in the longitudinal direction of the vehicle. It is fixed via a fixture.

  Accordingly, the slider 31 is shaped to be connected to the seat cushion 25 via the branch harnesses 9b, 9c, and 9d, and as shown by the arrow A in FIGS. When sliding to the front side of the vehicle, it is pulled by the branch harnesses 9b, 9c, 9d fixed to the seat cushion 25, and slides on the side frame 11 together with the seat cushion 25 to the front side of the vehicle.

  Further, as indicated by an arrow B in FIGS. 3A and 3B, when the seat cushion 25 is slid to the rear side of the vehicle, the slider 31 is connected to the branch harnesses 9b and 9c fixed to the seat cushion 25. , 9d and slides on the side frame 11 to the vehicle rear side together with the seat cushion 25.

  In the wire harness routing structure of the present embodiment described above, when the wire harness 9 is introduced from the outside of the seat into the vehicle seat, or when the wire harness 9 is pulled out from the inside of the vehicle seat, the wire harness 9 The wire harness 9 can be easily led out and inserted as compared with the conventional case where the wire harness has to be inserted into the harness insertion hole formed in the side frame in order to straddle the upper edge of the side frame 11 at the lower part of the vehicle seat. Thus, the routing workability can be improved.

  Further, the wire harness 9 on the side frame 11 is prevented from coming into direct contact with the side frame 11 at the same time, and at the same time, the wire harness 9 straddling the side frame 11 is placed in the vehicle front-rear direction. Since the slider 31 is movably accommodated in the vehicle, for example, the seat cushion 25 is moved in the front-rear direction of the vehicle to adjust the seat length, and the wire harness 9 is shaken accordingly. The wire harness 9 is accommodated in the slider 31 and can move on the side frame 11 without contacting the side frame 11, and the wire harness 9 is prevented from being damaged by biting with the side frame 11 or the like. The durability of the wire harness 9 can be improved.

  Further, in the wire harness routing structure of the present embodiment, the slider 31 slides on the side frame 11 together with the seat cushion 25 mounted on the side frame 11 so as to be movable in the front-rear direction of the vehicle. For example, even when the seat cushion 25 is moved in the longitudinal direction of the vehicle for adjusting the seat length, no relative movement occurs between the slider 31 and the seat cushion 25, so that the slider 31 and the wire harness 9 slide. It is possible to prevent the wire harness 9 from rubbing and hurting.

  Furthermore, since the wire harness wiring structure of the present embodiment includes the locking means 33 for locking the wire harness 9 on the slider 31, the wire harness 9 is fixed to the slider 31 by the locking means 33. Thus, it is possible to prevent the wire harness 9 from vibrating on the slider due to vehicle vibration or the like, and to prevent abnormal noise from being generated due to vibration of the wire harness 9 or the like.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

It is a disassembled perspective view of one Embodiment of the wire harness wiring structure in the vehicle seat which concerns on this invention. (A) is a perspective view of a state in which the seat cushion of the vehicle seat shown in FIG. 1 slides forward, and (b) is a perspective view showing the position of the slider at (a). FIG. 2A is a perspective view of a state in which the seat cushion of the vehicle seat shown in FIG. 1 is slid and moved rearward of the vehicle, and FIG. It is explanatory drawing of the wire harness wiring structure in the conventional vehicle seat. FIG. 5 is an enlarged view of a routing structure around a side frame that introduces a wire harness from the outside to the inside of the vehicle seat shown in FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 Wire harness 11 Side frame 12 Upper edge 25 Seat cushion 31 Slider 31a Slider main body 31b Slide groove 31c Harness mounting part 33 Locking means

Claims (3)

A vehicle seat having a side frame and a seat cushion mounted on the side frame;
A wire harness introduced from the side frame into the vehicle seat and routed to each part inside the vehicle seat;
A wiring harness wiring structure in a vehicle, comprising:
The wire harness is introduced into the vehicle seat from outside the vehicle seat, straddling the upper edge of the side frame,
The wire harness that straddles the side frame at the top of the side frame at the same time as preventing the wire harness from directly contacting the side frame at the portion of the side frame that the wire harness straddles. longitudinal you movably accommodated in a direction, the wire harness installation structure in a vehicle seat, characterized in that the slider is equipped with a slide groove to be fitted on the lower surface on the upper edge of the side frame.   The seat cushion is mounted on the side frame so as to be movable in the front-rear direction of the vehicle, and the slider slides on the side frame together with the seat cushion. Wire harness wiring structure in the vehicle seat of the vehicle.   The wire harness routing structure in the vehicle seat according to claim 1 or 2, wherein the slider is provided with locking means for locking the wire harness.

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