JP2009248676A - Wire harness routing structure in vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness routing structure in a vehicular seat capable of improving routing workability upon introducing a wire harness to the inside of the seat and preventing the wire harness from being damaged by biting with a side frame. <P>SOLUTION: The wire harness 9 straddles an upper edge of the side frame 11 at a lower part of the vehicular seat, and is introduced to the inside of the seat from outside the seat. At a portion of the side frame 11 where the wire harness 9 straddles it, a protector 15 is attached for preventing the wire harness 9 from coming in direct contact with the side frame 11. The protector 15 improves routing workability and prevents biting at the same time by being engaged with at least one of the side frame 11 and a cushion pan 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

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, and on the side frame 103 in the vehicle front-rear direction. 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 cushion pan 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,
A protective protector for preventing the wire harness from coming into direct contact with the side frame is provided at a portion of the side frame where the wire harness is straddled, and the protective protector is at least one of the cushion pan and the side frame. The wire harness wiring structure in the vehicle seat characterized by being engaged with the vehicle seat.

  (2) The protective protector is provided with a frame engaging portion that engages with the side frame and a pan engaging portion that engages with the cushion pan, and the side frame and the cushion pan are interposed via the protective protector. The wire harness wiring structure in the vehicle seat according to (1), wherein

  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.

  In addition, a protective protector that prevents the wire harness from coming into direct contact with the side frame is installed at the part of the side frame where the wire harness straddles, so that the wire harness may be damaged by biting with the side frame. It is possible to improve the durability of the wire harness.

  Furthermore, according to the above configuration, since the protective protector is engaged with at least one of the cushion pan or the side frame mounted on the side frame, the protective protector is not accidentally dropped off, and the protective protector is prevented. It is possible to stabilize the holding of the wire harness.

  According to the configuration of the above (2), the protective protector that protects the wire harness also serves as a connecting means that connects the side frame and the cushion pan, and the protective protector can be used more effectively.

  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.

  Moreover, since the wire harness straddling the side frame is prevented from being directly contacted with the side frame by the protective protector, the wire harness is prevented from being damaged due to biting with the side frame and the wire harness is durable. Can be improved.

  Furthermore, since the protective protector is engaged with at least one of the cushion pan or the side frame mounted on the side frame, the protective protector is not accidentally dropped and the protective protector can hold the wire harness. It can be stabilized.

  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 routing structure in a vehicle seat according to the present invention, and FIG. 2 shows a state in which the wire harness is introduced into the seat from the side frame below the vehicle seat shown in FIG. FIG. 3 is an enlarged cross-sectional view showing a state in which the side frame and the cushion pan are connected by a protective protector installed on the side frame below the vehicle seat in the wire harness routing structure shown in 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 protection protector 15 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 protective protector 15 is made of resin and is fitted and attached to a rectangular notch 11 a formed on the upper edge of the side frame 11. In the case of the present embodiment, the side frame 11 is formed with two notches 11a, and two protective protectors 15 are provided as shown in FIG.

  The protective protector 15 connects the pair of side wall parts 15a and 15b facing each other with a width dimension W2 substantially equal to the width dimension W1 of the notch part 11a, and the side wall parts 15a and 15b. A harness placing portion 15c that covers the bottom side of the cutout portion 11a so as not to directly contact the side frame 11 is provided.

  Further, as shown in FIG. 3, the protective protector 15 of the present embodiment is provided with a first frame engaging portion 17 that engages with the side frame 11 and a pan engaging portion 18 that engages with the cushion pan 21. It has been.

  As shown in FIG. 3, the first frame engaging portion 17 is a hook-shaped arm portion that engages the bulging portion 19 at the bottom of the cutout portion 11 a of the side frame 11 with the back side of the bulging portion 19. 17a and a holding piece 17b located on the front side of the side frame 11 are used to hold the plate. The holding piece 17 b is an end portion of the harness placing portion 15 c that overlaps the surface of the side frame 11.

  The protective protector 15 of the present embodiment functions as a second frame engaging portion that engages with the side frame 11 by fitting the pair of side wall portions 15a and 15b to the notch portion 11a. The first and second frame engaging portions are firmly coupled to the side frame 11.

  The cushion pan 21 is a metal support plate lined on the back surface of the seat cushion 25 mounted on the side frame 11.

  As shown in FIG. 3, the pan engaging portion 18 provided in the protective protector 15 is a hook-shaped locking piece that engages with an engaging hole 21 a formed through the cushion pan 21, and the engaging hole 21 a The engagement with the cushion pan 21 is achieved.

  As described above, the protection protector 15 according to the present embodiment is configured such that the first frame engaging portion 17 and the pair of side wall portions 15a and 15b serving as the second frame engaging portion are engaged with the side frame 11 as a side. It is fixed to the frame 11, and the pan engaging portion 18 is fixed to the cushion pan 21 by engaging with the engagement hole 21 a of the cushion pan 21. As a result, the side frame 11 and the cushion pan 21 are connected to each other via the protective protector 15.

  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 Compared with the conventional case where the wire harness had to be inserted into the harness insertion hole formed in the side frame 11 in order to straddle the upper edge of the side frame 11 below the vehicle seat, It becomes easy and wiring workability | operativity can be improved.

  In addition, a protective protector 15 that prevents the wire harness 9 from coming into direct contact with the side frame 11 is provided at the portion of the side frame 11 where the wire harness 9 straddles. It is possible to improve the durability of the wire harness 9 by preventing the wire harness 9 from being damaged.

  Furthermore, according to the above configuration, since the protective protector 15 is engaged with the cushion pan 21 and the side frame 11 that are mounted on the side frame 11, the protective protector 15 is not accidentally dropped. The holding of the wire harness 9 by the protective protector 15 can be stabilized.

  Further, in the case of the present embodiment, the protective protector 15 is provided with a frame engaging portion 17 that engages with the side frame 11 and a pan engaging portion 18 that engages with the cushion pan 21. The side frame 11 and the cushion pan 21 are connected.

  That is, the protective protector 15 that protects the wire harness 9 also serves as a connecting means that connects the side frame 11 and the cushion pan 21, and the protective protector 15 can be used more effectively.

  In the above-described embodiment, the protective protector 15 is provided with both the frame engaging portion 17 that engages with the side frame 11 and the pan engaging portion 18 that engages with the cushion pan 21.

  However, for example, for the purpose of preventing the protective protector 15 from being inadvertently dropped, only one of the frame engaging portion 17 and the pan engaging portion 18 is provided, and the cushion pan 21 or the side frame 11 is It is good also as a structure engaged only with any one.

  That is, the protective protector 15 may be configured to be engaged with at least one of the cushion pan 21 or the side frame 11.

  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. It is a perspective view which shows the state which introduced the wire harness from the side frame of the vehicle seat lower part shown in FIG. FIG. 2 is an enlarged cross-sectional view showing a state in which the side frame and the cushion pan are connected by a protective protector provided on the side frame below the vehicle seat in the wire harness routing structure shown in FIG. 1. 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

9 Wire harness 11 Side frame 11a Notch 15 Protective protector 15a, 15b Side wall (second frame engaging part)
15c Harness placing portion 17 First frame engaging portion 18 Pan engaging portion 21 Cushion pan 25 Seat cushion

Claims (2)

A vehicle seat having a side frame and a cushion pan 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,
A protective protector for preventing the wire harness from coming into direct contact with the side frame is provided at a portion of the side frame where the wire harness is straddled, and the protective protector is at least one of the cushion pan and the side frame. The wire harness wiring structure in the vehicle seat characterized by being engaged with the vehicle seat.   The protective protector is provided with a frame engaging portion that engages with the side frame and a pan engaging portion that engages with the cushion pan, and the side frame and the cushion pan are connected via the protective protector. The wire harness routing structure in the vehicle seat according to claim 1, wherein the wiring harness routing structure is in a state.

Images