JP2023159750A - Wiring structure of harness and vehicle seat - Google Patents

Abstract

To provide a wiring structure of a harness having a high degree of freedom of an attachment position of a clip and being capable of reducing a load applied to the harness, and to provide a vehicle seat.SOLUTION: A clip 24 is locked to a wire frame 18 in a seat cushion pad 14. The clip 24 holds a wire harness 22. The wire harness 22 is arranged with respect to a seat cushion 12 via the clip 24. In a state where the wire harness 22 is held by the clip 24, a gap is provided in between the wire harness 22 and the clip 24. The wire harness 22 can swing with respect to the clip 24. By locking the clip 24 to the wire harness 22 in this manner, a degree of freedom of the attachment position of the clip 24 is improved. Since the clip 24 holds the wire harness 22 in the state where the gap is provided in between the clip 24 and the wire harness 22, a load applied to the clip 24 is reduced.SELECTED DRAWING: Figure 3

Description

The present invention relates to a harness routing structure and a vehicle seat.

For example, Patent Document 1 listed below discloses a technology related to a wire harness routing structure for routing a wire harness to a vehicle seat. In this prior art, a clip is attached to a bracket provided on the seat body, and the wire harness is fixed by this clip.

JP2020-203541A

However, in the above-mentioned prior art, since the clip is attached to a bracket provided on the seat body, it is necessary to form a hole for attaching the clip, which reduces the degree of freedom in the attachment position of the clip. Further, in order to avoid interference with parts around the bracket, the direction in which the harness is routed is restricted, and there is concern that a load may be applied to the harness depending on the direction in which it is routed.

The present invention has been made in consideration of the above facts, and an object of the present invention is to obtain a harness routing structure and a vehicle seat that have a high degree of freedom in the attachment position of the clip and can reduce the load applied to the harness.

The harness routing structure according to the invention according to claim 1 includes: a seat pad that elastically supports a seated occupant; a wire frame provided on the seat pad and supporting the seat pad; The seat pad includes a clip that is locked and holds the harness with a gap provided between the harness and the harness that is electrically connected to a device disposed on the seat pad.

The harness arrangement structure according to the invention according to claim 1 includes a seat pad, a wire frame, and a clip, and the wire frame is provided on the seat pad that elastically supports a seated occupant. , supporting the seat pad. On the other hand, the clip is latched to the wire frame and holds the harness electrically connected to a device disposed on the seat pad with a gap provided between the clip and the harness.

In other words, the present invention includes a clip that is locked to a wire frame that supports the seat pad, and the harness is held in a state where a gap is provided between the clip and the harness by the clip that is locked to the wire frame. .

In this way, by locking the clip to the wire frame that supports the seat pad, the degree of freedom in the attachment position of the clip is improved. Further, by locking the clip to the wire frame, a separate member such as a bracket for attaching the clip is not required, and there is also no need to form a hole for attaching the clip to the separate member.

Further, in the present invention, the clip holds the harness with a gap provided between the clip and the harness. In other words, while the harness is held by the clip, a gap is provided between the clip and the harness. In other words, the harness can swing while being held by the clip. Therefore, the load acting on the harness while the harness is held by the clip is reduced.

In the harness routing structure according to the invention set forth in claim 2, in the harness routing structure according to the invention set forth in claim 1, the seat pad is a seat cushion pad on which an occupant is seated, and the wire frame is embedded in the seat cushion pad, and is set so that a portion of the wire frame is exposed from the rear end surface of the seat cushion pad in the seat longitudinal direction.

In the harness arrangement structure according to the second aspect of the invention, the seat pad is a seat cushion pad on which an occupant sits, and a wire frame is embedded in the seat cushion pad. A portion of the wire frame is set to be exposed from the rear end surface of the seat cushion pad in the seat longitudinal direction, and the clip is engaged with a portion of the wire frame exposed from the rear end surface of the seat cushion pad in the seat longitudinal direction. will be stopped.

The harness routing structure according to the invention according to claim 3 is the harness routing structure according to the invention according to claim 2, in which the clip has a locking part that is locked to the wire frame, The harness includes a holding part that holds the harness, and a pair of clamping pieces.

In the harness arrangement structure according to the invention set forth in claim 3, the clip includes a pair of clamping pieces each having a locking portion and a holding portion, and the locking portion is configured to lock onto the wire frame. Then, the harness is held by the holding part with the clip being locked to the wire frame via the locking part.

In the harness routing structure according to the invention set forth in claim 4, in the harness routing structure according to the invention set forth in claim 3, the wire frame has a substantially cylindrical shape, and the locking portion are respectively opposed to the wire frame at different positions in the longitudinal direction of the wire frame, and are respectively locked to the wire frame by covering the wire frame from the outside in the radial direction of the wire frame.

In the harness routing structure according to the fourth aspect of the invention, the wire frame has a substantially cylindrical shape. Further, the locking portions are respectively provided on the pair of clamping pieces, and are disposed facing the wire frame at different positions in the longitudinal direction of the wire frame. Therefore, the locking portions are set to be respectively locked to the wire frame by covering the wire frame from the outside in the radial direction of the wire frame.

In the harness routing structure according to the invention set forth in claim 5, in the harness routing structure according to the invention set forth in claim 4, the locking portion is attached to one of the pair of clamping pieces. a first crank part that is bent in a crank shape and covers approximately half of the wire frame along the circumferential direction; The second crank part is bent into a crank shape with the first crank part reversed, and covers approximately the remaining half of the wire frame along the circumferential direction.

In the harness arrangement structure according to the invention set forth in claim 5, the locking portions are provided on each of the pair of clamping pieces, and are configured to include a first crank portion and a second crank portion. The first crank portion is provided on one of the clamping pieces, is bent in a crank shape, and is formed to cover approximately half of the wire frame along the circumferential direction. Further, the second crank part is provided on the other holding piece, and is bent into a crank shape with the first crank part inverted with the wire frame in between, and the second crank part is bent in a crank shape with the wire frame in between and the remaining part along the circumferential direction of the wire frame. It is formed to cover half.

In the present invention, the wire frame is covered from the outside in the radial direction by the first crank part and the second crank part, so that the clip is locked to the wire frame via the first crank part and the second crank part. be done.

The harness routing structure according to the invention set forth in claim 6 is the harness routing structure according to the invention set forth in claim 5, in which the pair of clamping pieces includes the one clamping piece and the other clamping piece. , with the pair of clamping pieces closed, the one clamping piece and the other clamping piece face each other, and with the pair of clamping pieces open, the one clamping piece and the other clamping piece are connected. further comprising a hinge part for separating the holding pieces, and the holding part is provided between the first crank part and the hinge part of the one holding piece, and the holding part is provided on the outer side of the substantially cylindrical harness in the radial direction. and a second holding wall provided between the second crank part and the hinge part of the other clamping piece and provided on the outside of the harness in the radial direction. It is configured.

In the harness arrangement structure according to the invention described in claim 6, the pair of clamping pieces further includes a hinge part, and the holding part further includes a first holding wall and a second holding wall. There is. The hinge part connects one clamping piece and the other clamping piece, and when the pair of clamping pieces are closed, the one clamping piece and the other clamping piece are made to face each other, and the pair of clamping pieces The one clamping piece and the other clamping piece are separated in the open state.

The first holding wall is provided between the first crank portion and the hinge portion of one of the holding pieces, and is provided on the radially outer side of the substantially cylindrical harness. On the other hand, the second holding wall is provided between the second crank part and the hinge part of the other holding piece, and is provided on the outside of the harness in the radial direction. In other words, with the pair of clamping pieces closed, the harness is held between the first retaining wall provided on one clamping piece and the second retaining wall provided on the other clamping piece. Ru.

In the harness routing structure according to the invention set forth in claim 7, in the harness routing structure set forth in claim 6, the first retaining wall and the first crank section are arranged around the hinge section. The second retaining wall and the second crank part are arranged at opposing positions, and the second retaining wall and the second crank part are arranged at opposing positions.

In the harness routing structure according to the invention set forth in claim 7, the first retaining wall and the first crank part are arranged at positions facing each other with the hinge part as the center, and the second retaining wall and the second crank part are arranged at opposing positions. By being arranged at positions facing the parts, one clamping piece and the other clamping piece intersect between the first holding wall, the second holding wall, the first crank part, and the second crank part. It is formed like this.

In this way, by forming the one clamping piece and the other clamping piece so as to intersect with each other, in the present invention, the locking part is difficult to come off from the wire frame, and the first crank part and the second clamping part It becomes possible to improve the locking force by the two crank parts.

A harness routing structure according to an eighth aspect of the invention is the harness routing structure according to the fifth aspect, further comprising a fixing structure for fixing the clip to the wire frame.

In the harness routing structure according to the eighth aspect of the invention, the clip is fixed to the wire frame by the fixing structure.

The harness routing structure according to the invention according to claim 9 is the harness routing structure according to claim 8, in which the fixing structure forms a part of the first crank part, and the first crank part and the second crank part cover the wire frame from the outside in the radial direction, a first upper wall part that can be placed above the wire frame, and a part of the second crank part. and a second upper wall portion that can be placed above the wire frame with the first crank portion and the second crank portion covering the wire frame from the outside in the radial direction. It consists of

In the harness routing structure according to the ninth aspect of the invention, the fixing structure includes a first upper wall portion and a second upper wall portion. The first upper wall part forms a part of the first crank part, and the wire frame is covered with the first crank part and the second crank part from the outside in the radial direction. It can be placed on the upper side. On the other hand, the second upper wall part constitutes a part of the second crank part, and the wire frame is covered with the first crank part and the second crank part from the outside in the radial direction. It can be placed above the .

The harness routing structure according to the invention according to claim 10 is the harness routing structure according to claim 9, in which the clip includes a locking portion that is locked to the wire frame and holding the harness. The pair of clamping pieces connects the one clamping piece and the other clamping piece, and the pair of clamping pieces connects the one clamping piece and the other clamping piece in a state where the pair of clamping pieces are closed. The holding part further includes a hinge part that makes the one clamping piece and the other clamping piece face each other and separates the one clamping piece and the other clamping piece in a state where the pair of clamping pieces is opened, and the holding part , a first retaining wall provided between the first crank part and the hinge part of the one clamping piece and provided on the outer side in the radial direction of the harness having a substantially cylindrical shape; The fixing structure further includes a second retaining wall provided between the second crank part and the hinge part and provided on the outside of the harness in the radial direction, and the fixing structure is attached to the first retaining wall. an extending portion formed on the second retaining wall and extending in a direction opposite to the extending direction of the first upper wall portion; and an extending portion formed on the second retaining wall and extending in the extending direction of the second upper wall portion further includes a protrusion that protrudes in the opposite direction, is disposed above the extension, and can be abutted by the extension when the pair of clamping pieces are closed. has been done.

In the harness routing structure according to the tenth aspect of the present invention, the fixing structure further includes an extending portion and a protruding portion. The extending portion is formed on the first retaining wall and extends in a direction opposite to the extending direction of the first upper wall portion. On the other hand, the protruding part is formed on the second retaining wall and protrudes in a direction opposite to the extending direction of the second upper wall part, and the protruding part is provided with the pair of clamping pieces closed. The extension part is arranged on the upper side of the part and can be brought into contact with the extension part.

In this way, by providing the extension part that contacts the second holding wall and the protrusion part that contacts the extension part, deformation of the pair of clamping pieces is suppressed, and the clip is fixed to the wire frame. The state is maintained.

The harness routing structure according to the invention set forth in claim 11 is the harness routing structure set forth in claim 6, wherein the harness is held by the first holding wall and the second holding wall, and the harness is held by the first holding wall and the second holding wall. A first temporary fixing structure is provided for temporarily fixing the clip.

In the harness routing structure according to the eleventh aspect of the invention, the clip is temporarily fixed to the harness by the first temporary fixing structure. In the first temporary fixing structure, the clip is temporarily fixed to the harness by holding the harness between the first holding wall and the second holding wall. In the present invention, the clip temporarily fixed to the harness can be locked to the wire frame, so the workability is better compared to the case where such a temporary fixing structure is not provided.

The harness routing structure according to the invention according to claim 12 is the harness routing structure according to claim 11, further comprising: a second temporary fixing structure for temporarily fixing the clip to the wire frame; The second temporary fixing structure forms a part of the locking part that is locked to the wire frame, and includes an upper wall part that can be placed on the wire frame and other parts of the locking part. and extends in a direction opposite to the extending direction of the upper wall portion, and is held by the holding portion while the upper wall portion is disposed on the wire frame. The harness includes an extension part that can be placed on the harness.

In the harness routing structure according to the twelfth aspect of the invention, the clip is temporarily fixed to the wire frame by the second temporary fixing structure. The second temporary fixing structure includes an upper wall portion and an extending portion. The upper wall part forms part of a locking part that is locked to the wire frame, and can be placed on the wire frame. On the other hand, the extension part forms another part of the locking part, and extends in the opposite direction to the extension direction of the upper wall part, so that the upper wall part is on the wire frame. In the arranged state, it can be placed on the harness held by the holding part.

In other words, the harness can be temporarily fixed by placing the harness held by the holding part on the lower side of the extension part with the upper wall part forming part of the locking part hooked onto the wire frame. This improves work efficiency.

The vehicle seat according to the invention set forth in claim 13 has the harness arrangement structure set forth in any one of claims 1 to 12 applied thereto.

In the vehicle seat according to the invention set forth in claim 13, it is possible to enjoy the effects obtained by the harness routing structure set forth in any one of claims 1 to 12.

As described above, according to the harness arrangement structure and vehicle seat according to the present invention, there is a high degree of freedom in the attachment position of the clip, and the load on the harness can be reduced.

FIG. 2 is a perspective view of a seat cushion to which the harness arrangement structure according to the present embodiment is applied, as viewed diagonally from the rear left side. FIG. 2 is a perspective view of the seat cushion to which the harness arrangement structure according to the present embodiment is applied, with the outer skin removed, as viewed diagonally from the rear left side. FIG. 2 is a perspective view of a wire frame and a clip provided on a seat cushion to which the harness routing structure according to the present embodiment is applied, as viewed diagonally from the rear left side. FIG. 3 is a perspective view showing a closed state of the clip used in the harness routing structure according to the present embodiment. FIG. 3 is a perspective view showing a state in which a clip used in the harness routing structure according to the present embodiment is opened. FIG. 3 is a perspective view showing a state in which the harness is held by a clip used in the harness routing structure according to the present embodiment. FIG. 3 is an operational diagram showing a state in which a clip used in the harness routing structure according to the present embodiment is locked to a wire frame. FIG. 6 is an operational diagram showing a state in which the harness is held by the clip used in the harness routing structure according to the present embodiment and the clip is locked to the wire frame. FIG. 6 is an operational diagram showing a state in which the harness is held by the clip used in the harness routing structure according to the present embodiment and the clip is locked to the wire frame. FIG. 2 is a perspective view showing a state in which a clip used in the harness routing structure according to the present embodiment is temporarily fixed to a wire frame.

Hereinafter, a vehicle seat 10 to which a wire harness routing structure according to an embodiment of the present invention is applied will be described with reference to the drawings. Note that arrows FR, UP, and W, which are appropriately indicated in each figure, indicate the front, upper, and seat width directions of the vehicle seat 10, respectively. Hereinafter, when the directions are simply referred to as front and rear, left and right, and up and down directions, unless otherwise specified, this refers to the front and rear of the seat, the left and right of the seat left and right (seat width direction), and the top and bottom of the seat up and down. .

First, the configuration of a vehicle seat to which the wiring harness routing structure according to the present embodiment is applied will be briefly described.

As shown in FIGS. 1 to 3, the vehicle seat 10 according to the present embodiment includes a seat cushion 12 on which an occupant sits, and a seat (not shown) that supports the upper body of the occupant seated on the seat cushion 12. The vehicle includes a back and a headrest that supports the head of an occupant seated on the seat cushion 12.

The seat cushion 12 includes a seat frame (not shown) that is a skeleton member, a seat cushion pad (seat pad) 14, and a seat cushion skin 16 that covers the seat cushion pad 14.

In this embodiment, a wire frame 18 is embedded within the seat cushion pad 14. The wire frame 18 is formed, for example, by bending or welding a plurality of linear metal materials each having a cylindrical cross-sectional shape to form a substantially rectangular frame shape in a plan view. is placed on the outer periphery of the In this way, by providing the wire frame 18 on the outer peripheral portion of the seat cushion pad 14, rigidity for maintaining the shape of the seat cushion pad 14 is provided.

<Configuration of wire harness routing structure>
Next, the configuration of the wiring structure of the wire harness according to the present embodiment will be described.

In this embodiment, a part of the wire frame 18 (hereinafter referred to as "exposed part 20") is exposed from the rear end surface 14A of the seat cushion pad 14 in the seat longitudinal direction and the central part in the seat width direction. The exposed portion 20 has a substantially U-shape with an opening on the front side in the front-rear direction of the seat in a plan view, and a clip 24 holding a wire harness (harness) 22 can be locked to the exposed portion 20. It is said that

Here, the wire harness 22 is connected to, for example, a temperature sensor (device) 26. The temperature sensor 26 is disposed, for example, between the seat cushion pad 14 and the seat cushion skin 16, and extends along the front-rear direction of the seat in the central portion of the seat width direction.

Although not shown, the wire harness 22 to which the temperature sensor 26 is connected is electrically connected to an in-vehicle ECU (ECU; hereinafter simply referred to as "ECU") as a control device on the vehicle side. It is connected. The ECU includes a CPU, a ROM, a RAM, a storage, and a communication interface, and these components are connected to each other via a bus so that they can communicate with each other.

Further, the ECU has a control section as a functional configuration. The functional configuration of the control unit is realized by the CPU reading and executing a program stored in the ROM or storage. For this reason, the control unit is set to, for example, detect the temperature of the seat cushion 12 and control an air conditioner such as a heater.

Note that although the temperature sensor 26 has been described as an example of a device disposed on the seat cushion pad 14, it is not limited to the temperature sensor 26, but may be other sensors such as a seating sensor, and may also be a sheet-shaped heater or the like. It is also applicable to devices other than sensors.

(clip)
Here, the clip 24 will be explained.

As shown in FIGS. 4 and 8, the clip 24 is made of synthetic resin and includes a pair of clamping pieces 28 and 30, and a locking portion 32 that is locked to the wire frame 18. , 34, and holding parts 36 and 38 for holding the wire harness 22, respectively.

As shown in FIGS. 5 and 8, a hinge portion 40 is provided between the clamping piece 28 and the clamping piece 30, and the clamping piece 28 and the clamping piece 30 are connected via this hinge portion 40. The pair of clamping pieces 28 and 30 (clip 24) can be opened and closed via the hinge part 40.

As shown by the solid lines in FIGS. 6 and 9, when the clip 24 is closed, the clamping piece 28 and the clamping piece 30 are arranged to face each other, and in this state, the wire harness 22 is inserted through the clip 24. Retained. On the other hand, as shown by the two-dot chain line in FIGS. 5 and 9, when the clip 24 is opened, the clamping piece 28 and the clamping piece 30 are separated, and the wire harness 22 can be attached to and detached from the clip 24. Ru.

As shown in FIG. 8, when the clip 24 is closed, the locking portion 32 provided on the clamping piece 28 and the locking portion 34 provided on the clamping piece 30 are connected to the exposed portion 20 of the wire frame 18. are arranged opposite to the wire frame 18 at different positions in the longitudinal direction. The locking portions 32 and 34 are locked to the wire frame 18 by covering the wire frame 18 from the outside in the radial direction of the wire frame 18 with the locking portions 32 and 34.

Here, as shown in FIG. 4, FIG. 8, and FIG. It is configured to include a retaining wall 44 formed in the. The retaining wall 44 and the crank part 42 are arranged at opposite positions with the hinge part 40 at the center.

Furthermore, in the holding piece 30, the locking part 34 includes a crank part 46 formed in a crank shape, and the holding part 38 includes a holding wall 48 formed in a rectangular shape. The retaining wall 48 and the crank part 46 are arranged at opposing positions with the hinge part 40 at the center.

That is, in the present embodiment, the clamping pieces 28 and 30 are formed so as to intersect between the retaining wall 44 and the retaining wall 48 and the crank portion 42 and crank portion 46. Then, the clip 24 is locked to the wire frame 18 by the crank portion 42 and the crank portion 46, and the wire harness 22 is held to the clip 24 by the holding wall 44 and the holding wall 48 (first temporary fixing structure).

The holding piece 28 will be explained in more detail.

As described above, the holding piece 28 includes the crank portion 42 and the retaining wall 44. The retaining wall 44 is provided on the hinge portion 40 side, and a crank portion 42 is connected to the upper end of the retaining wall 44 (described later). When the clip 24 is closed, the retaining wall 44 is disposed on the rear side in the seat front-rear direction when viewed from the side of the seat.

The hinge portion 40 is set to be disposed on the lower side of the wire frame 18, and the retaining wall 44 is inclined toward the rear side in the front-rear direction of the seat as it goes upward from the hinge portion 40. The upper end portion 44A of the retaining wall 44 is formed to stand up toward the upper side in the seat vertical direction.

Here, a crank portion 42 is connected to a half side of the upper end of the retaining wall 44 in the seat width direction. When the clip 24 is closed, the crank part 42 has a substantially U-shape with an opening on the rear side in the front-rear direction of the seat when viewed from the side of the seat, and is arranged below the wire frame 18 to be locked. A lower wall portion 42A that can be connected to the front wall portion 42A, a front wall portion 42B that stands up from the lower wall portion 42A and can be placed on the front side of the wire frame 18, and a front wall portion 42B that is connected to the front wall portion 42B and placed above the wire frame 18. The upper wall portion 42C is configured to include an upper wall portion 42C.

As shown in FIG. 7, the front wall portion 42B can be elastically deformed from the lower wall portion 42A side toward the front side in the seat longitudinal direction. Further, as shown in FIGS. 4 and 5, a protrusion 50 is provided on the upper end 44A side of the retaining wall 44 and is formed substantially parallel to the lower wall 42A.

Next, the holding piece 30 will be explained in more detail.

As described above, the clamping piece 30 includes the crank portion 46 and the retaining wall 48. The retaining wall 48 is provided on the hinge portion 40 side, and a crank portion 46 is connected to the upper end of the retaining wall 48 (described later). The retaining wall 48 has a substantially plate shape and is disposed on the front side in the front-rear direction of the seat when viewed from the side of the seat with the clip 24 closed.

Since the hinge part 40 is set to be disposed on the lower side of the wire frame 18 (see FIG. 8), the retaining wall 48 moves toward the front side in the seat front-rear direction as it goes upward from the hinge part 40. It's sloped. The upper end portion 48A of the retaining wall 48 is formed to stand up toward the upper side in the seat vertical direction.

Here, a crank portion 46 is connected to a half side of the upper end of the retaining wall 48 in the seat width direction. When the clip 24 is closed, the crank part 46 has a substantially U-shape with an opening on the front side in the front-rear direction of the seat when viewed from the side of the seat, and is arranged below the wire frame 18 to be locked. a rear wall 46B that stands up from the lower wall 46A and can be placed on the front side of the wire frame 18; and a rear wall 46B that stands up from the lower wall 46A and can be placed on the front side of the wire frame 18; 46C of upper wall parts arrange|positioned on the upper side.

As shown in FIG. 7, the rear wall portion 46B can be elastically deformed from the lower wall portion 46A side toward the rear side in the front-rear direction of the seat. Further, as shown in FIGS. 4, 5, and 8, an extending piece 52 is formed on the upper end 48A side of the retaining wall 48 and is formed substantially parallel to the lower wall 46A. The extending piece 52 can come into contact with the retaining wall 44 when the clip 24 is closed, and the protrusion 50 can come into contact with the extending piece 52.

In addition, since the crank part 42 and the crank part 46 can face the wire frame 18 at different positions in the longitudinal direction of the wire frame 18, the crank part 42 is provided on one side in the seat width direction, and the crank part 42 is provided on one side in the seat width direction. A crank portion 46 is provided on the other side of the direction. Therefore, when the clip 24 is closed, the crank portion 42 and the crank portion 46 are arranged along the longitudinal direction of the wire frame 18 with the wire frame 18 in between.

Further, in this embodiment, in a state where the clip 24 is locked to the wire frame 18 and the wire harness 22 is held to the clip 24 by the holding walls 44 and 48, the wire harness 22 and the extension piece 52 are connected to each other. A gap is provided between them, and the wire harness 22 can swing relative to the clip 24. That is, in this embodiment, the wire harness 22 is held by the clip 24 without being pressed against it.

Here, as described above, the upper wall portion 46C of the crank portion 46 forms a part of the locking portion 34 that is locked to the wire frame 18, and can be placed on the wire frame 18. Ru. On the other hand, the extending piece 52 is extended in a direction opposite to the extending direction of the upper wall portion 46C, and in a state where the upper wall portion 46C is placed on the wire frame 18, the holding portion 36, 38. That is, with this, the clip 24 may be temporarily fixed to the wire frame 18 (second temporary fixing structure).

<Functions and effects of wiring harness routing structure>
Next, the operation and effect of the wiring harness routing structure according to the present embodiment will be explained.

As shown in FIG. 3, in this embodiment, the seat cushion pad 14 of the seat cushion 12 is provided with a wire frame 18, which is located at the rear end surface 14A of the seat cushion pad 14 in the seat longitudinal direction and at the center of the seat cushion pad 14 in the seat width direction. An exposed portion 20 is provided at the portion where a portion of the wire frame 18 is exposed.

In this embodiment, a clip 24 can be locked to this exposed portion 20. The clip 24 is capable of holding the wire harness 22, and the wire harness 22 can be disposed on the seat cushion 12 via the clip 24.

In the present embodiment, a gap is provided between the wire harness 22 and the clip 24 when the wire harness 22 is held by the clip 24, and the wire harness 22 is It is said to be swingable.

In this manner, in this embodiment, the clip 24 is locked to the wire frame 18 that supports the seat cushion pad 14, thereby improving the degree of freedom in the attachment position of the clip 24. Furthermore, by locking the clip 24 to the wire frame 18, as a comparative example, a separate member such as a bracket for attaching the clip 24 is not required, and a hole for attaching the clip 24 to the separate member is not required. There is also no need to form a section.

Furthermore, in the present embodiment, the clip 24 holds the wire harness 22 with a gap provided between it and the wire harness 22, so the wire harness 22 can be swung while the clip 24 holds the wire harness 22. It is possible to move. That is, the load acting on the clip 24 is reduced compared to the case where the wire harness 22 is pressed against the clip 24 while the wire harness 22 is held by the clip 24.

Further, in this embodiment, as shown in FIGS. 6, 8, and 10, the clip 24 includes a pair of clamping pieces 28, 30 each having locking parts 32, 34 and holding parts 36, 38. With the wire harness 22 being held by the holding parts 36 and 38, the locking parts 32 and 34 are locked to the wire frame, and the clip 24 is attached to the wire frame via the locking parts 32 and 34. 18.

The locking portions 32 and 34 are arranged to face the wire frame 18 at different positions in the longitudinal direction of the wire frame 18, and cover the wire frame 18 from the outside in the radial direction of the wire frame 18, thereby locking the wire. They are set to be locked to the frame 18, respectively.

Further, the locking portions 32 and 34 include a crank portion 42 and a crank portion 46, respectively. The crank portion 42 is bent into a crank shape and is formed to cover approximately half of the wire frame 18 in the circumferential direction. Further, the crank portion 46 is bent in a crank shape with the wire frame 18 interposed therebetween and the crank portion 42 is inverted, and is formed to cover approximately the remaining half of the wire frame 18 along the circumferential direction. There is.

Here, the pair of clamping pieces 28 and 30 further include a hinge portion 40, and the holding portions 36 and 38 further include a holding wall 44 and a holding wall 48, respectively. The hinge part 40 connects one clamping piece 28 and the other clamping piece 30, and connects the one clamping piece 28 and the other clamping piece 30 to each other when the pair of clamping pieces 28 and 30 are closed. The one clamping piece 28 and the other clamping piece 30 are separated from each other in a state where they face each other and the pair of clamping pieces 28 and 30 are opened.

The holding wall 44 is provided between the crank portion 42 and the hinge portion 40 in one of the holding pieces 28, and is provided on the radially outer side of the wire harness 22 having a substantially cylindrical shape. On the other hand, the holding wall 48 is provided between the crank portion 46 and the hinge portion 40 in the other holding piece 30, and is provided on the outside of the wire harness 22 in the radial direction. That is, when the pair of clamping pieces 28 and 30 are closed by the hinge part 40, between the retaining wall 44 provided on one clamping piece 28 and the retaining wall 48 provided on the other clamping piece 30. Wire harness 22 is held.

In this embodiment, the fixed structure includes an upper wall portion 42C and an upper wall portion 46C. As mentioned above, the upper wall portion 42C forms a part of the crank portion 42 that includes the front wall portion 42B and the lower wall portion 42A, and the front wall portion 42B is connected to the two points in FIG. As shown by the chain line, the seat can be elastically deformed from the lower wall portion 42A side toward the front side in the front-rear direction of the seat. Further, the upper wall portion 46C forms a part of the crank portion 46 that includes a rear wall portion 46B and a lower wall portion 46A, and the rear wall portion 46B starts from the lower wall portion 46A side. The seat can be elastically deformed toward the rear in the front-rear direction.

Therefore, with the clip 24 holding the wire harness 22 disposed below the wire frame 18, the front wall portion 42B and the rear wall portion 46B are elastically deformed in a direction in which they are separated from each other. The tip of the wall portion 42C and the tip of the upper wall portion 46C are separated.

As a result, the wire harness 22 can be inserted between the tip of the top wall section 42C and the tip of the top wall section 46C, and the wire harness 22 can be inserted between the tip of the top wall section 42C and the tip of the top wall section 46C. When the wall portion 42B and the rear wall portion 46B are restored, the crank portion 42 and the crank portion 46 are locked to the wire frame 18.

That is, the clip 24 is locked to the wire frame 18 by the crank part 42 and the crank part 46, and the upper wall is covered with the crank part 42 and the crank part 46 covering the wire frame 18 from the outside in the circumferential direction. The portion 42C and the upper wall portion 46C are arranged above the wire frame 18.

Here, as shown in FIGS. 6 to 8, in the present embodiment, in the clamping piece 28, the holding wall 44 and the crank part 42 are arranged at opposing positions centering on the hinge part 40, and 30, the retaining wall 48 and the crank part 46 are arranged at opposing positions with the hinge part 40 at the center.

That is, the clamping pieces 28 and 30 are formed so as to intersect between the retaining wall 44 and between the retaining wall 48 and the crank portion 42 and the crank portion 46. As a result, in this embodiment, the locking portions 32 and 34 are difficult to come off from the wire frame 18, and the locking force of the crank portion 42 and the crank portion 46 can be improved.

Furthermore, in this embodiment, the fixing structure further includes an extension piece 52 and a protrusion 50. The extending piece 52 is formed on the retaining wall 48 and extends in a direction opposite to the extending direction of the upper wall portion 46C. On the other hand, the protruding part 50 is formed on the retaining wall 44 and protrudes in the direction opposite to the direction in which the upper wall part 42C extends. It is disposed above the extension piece 52 so that the extension piece 52 can come into contact with it.

In this manner, by providing the extension piece 52 that contacts the retaining wall 48 and the protrusion portion 50 that contacts the extension piece 52, deformation of the pair of clamping pieces 28 and 30 is suppressed, and The fixed state of the clip 24 is maintained.

Further, in this embodiment, the clip 24 can be temporarily fixed to the wire frame 18 by the temporary fixing structure. In the first temporary fixing structure, the clip 24 is temporarily fixed to the wire harness 22 by holding the wire harness 22 between the retaining wall 44 and the retaining wall 48 . Therefore, in this embodiment, the clip 24 temporarily fixed to the wire harness 22 may be locked to the wire harness 22. Therefore, compared to the case where such a temporary fixing structure is not provided, workability is better in this embodiment.

Note that, as described above, the upper wall portion 46C of the crank portion 46 forms a part of the locking portion 34 that is locked to the wire frame 18, and can be placed on the wire frame 18. . On the other hand, the extending piece 52 is extended in a direction opposite to the extending direction of the upper wall portion 46C, and is attached to the retaining wall 48 while the upper wall portion 46C is placed on the wire frame 18. It can be placed on the wire harness 22 to be held.

Therefore, in the present embodiment, as the second temporary fixing structure, the wire harness is held by the holding parts 36 and 38 on the lower side of the extension piece 52 with the upper wall part 46C hooked on the wire frame 18. The wire harness 22 may be temporarily fixed by arranging the wire harness 22.

(Supplementary information for the embodiment)
In the above embodiment, the wire frame 18 is embedded within the seat cushion pad 14, but the wire frame 18 does not necessarily need to be embedded within the seat cushion pad 14. Further, in this embodiment, the wire frame 18 is formed to have a substantially rectangular frame shape when viewed from above, but the shape of the wire frame 18 is not limited to this.

Further, in the present embodiment, the shape of the clip 24 is not limited to this because it is sufficient that the clip 24 holding the wire harness 22 can be locked to the wire frame 18. For example, in this embodiment, the locking portions 32 and 34 of the clip 24 have a crank shape, but are not limited to this shape. For example, it may be arcuate.

Further, in this embodiment, the wire harness 22 has been described, but the present invention is not limited to the wire harness 22, and may be a cable-like harness.

Furthermore, in the present embodiment, an example has been described in which the wiring harness is applied to the seat cushion 12 side, but it may also be applied to the seat back side.

In addition, the present invention can be implemented with various modifications without departing from the gist thereof. Moreover, it goes without saying that the scope of the rights of the present invention is not limited to the above embodiments.

<Additional notes>
Note that the wiring harness arrangement structure according to the present invention may be formed by appropriately combining the following configurations.

(Configuration 1)
In the harness arrangement structure, a seat pad elastically supports a seated occupant; a wire frame provided on the seat pad and supporting the seat pad; and a clip that holds the harness with a gap provided between the harness and the harness that is electrically connected to a device placed in the harness.

(Configuration 2)
In the harness arrangement structure, the seat pad is a seat cushion pad on which an occupant is seated, and the wire frame is embedded in the seat cushion pad, and the wire frame extends from the rear end surface of the seat cushion pad in the front-rear direction of the seat. A portion of the frame is set to be exposed.

(Configuration 3)
In the harness routing structure, the clip includes a pair of clamping pieces including a locking part that locks onto the wire frame and a holding part that holds the harness.

(Configuration 4)
In the wiring structure of the harness, the wire frame has a substantially cylindrical shape, and the locking portions face the wire frame at different positions in the longitudinal direction of the wire frame, and By covering the wire frame from the outside in the direction, the wire frame is respectively locked to the wire frame.

(Configuration 5)
In the harness arrangement structure, the locking part is provided on one of the pair of clamping pieces, is bent in a crank shape, and is attached to a first crank that covers approximately half of the wire frame along the circumferential direction. and the other of the pair of clamping pieces, is bent in a crank shape with the first crank part inverted with the wire frame in between, and extends along the circumferential direction of the wire frame. and a second crank part that covers approximately half of the remaining part.

(Configuration 6)
In the harness arrangement structure, the holding portion is provided between the first crank portion and the hinge portion of the one holding piece, and the first holding portion is provided on the radially outer side of the harness having a substantially cylindrical shape. The harness is configured to further include a retaining wall, and a second retaining wall provided between the second crank portion and the hinge portion of the other holding piece and provided on the outside of the harness in the radial direction.

(Configuration 7)
In the wiring structure of the harness, the first retaining wall and the first crank part are arranged at opposite positions with the hinge part as the center, and the second retaining wall and the second crank part are opposite to each other. It is placed in a position where

(Configuration 8)
The harness routing structure includes a fixing structure that fixes the clip to the wire frame.

(Configuration 9)
In the harness arrangement structure, the fixing structure forms a part of the first crank part, and the first crank part and the second crank part cover the wire frame from the outside in the radial direction. , a first upper wall part that can be placed above the wire frame and a part of the second crank part, and the first crank part and the second crank part extend the wire frame in the radial direction. and a second upper wall part that can be placed above the wire frame while covering the wire frame from the outside.

(Configuration 10)
In the harness arrangement structure, the fixing structure includes an extending portion formed on the first retaining wall and extending in a direction opposite to an extending direction of the first upper wall portion; 2, formed on the second retaining wall, protruding in a direction opposite to the extending direction of the second upper wall portion, and arranged above the extending portion with the pair of clamping pieces closed. The device further includes a protruding portion that can be abutted by the extending portion.

(Configuration 11)
In the harness routing structure, a first temporary fixing structure is provided in which the harness is held by the first holding wall and the second holding wall, and the clip is temporarily fixed to the harness.

(Configuration 12)
In the harness routing structure, a second temporary fixing structure for temporarily fixing the clip to the wire frame is provided, and the second temporary fixing structure is a part of a locking part that is fixed to the wire frame. an upper wall portion that can be placed on the wire frame; and an upper wall portion that forms another part of the locking portion and extends in a direction opposite to the direction in which the upper wall portion extends. and an extension part that can be placed on the harness held by the holding part in a state where the upper wall part is placed on the wire frame.

10 Vehicle seat 12 Seat cushion 14 Seat cushion pad (seat pad)
14A Rear end surface (rear end surface in the seat longitudinal direction of the seat cushion pad)
18 Wire frame 22 Wire harness (harness)
24 Clip 26 Temperature sensor (device)
28 Clamping piece (one clamping piece)
30 Clamping piece (other clamping piece)
32 Locking part 34 Locking part 36 Holding part 38 Holding part 40 Hinge part 42 Crank part (one clamping piece, first crank part, locking part)
42C Upper wall part (fixed structure, first upper wall part)
44 Retaining wall (one clamping piece, first retaining wall, holding part)
46 Crank part (other clamping piece, second crank part, locking part)
46C Upper wall part (temporary fixing structure, fixed structure, second upper wall part)
48 Retaining wall (other clamping piece, second retaining wall, holding part)
50 Protruding part (fixed structure, protruding part)
52 Extension piece (temporary fixing structure, fixed structure, extension part)

Claims (13)

a seat pad that elastically supports a seated occupant;
a wire frame provided on the seat pad and supporting the seat pad;
a clip that holds the harness in a state where a gap is provided between the harness and the harness that is locked to the wire frame and electrically connected to a device disposed on the seat pad;
A harness routing structure with The seat pad is a seat cushion pad on which an occupant sits;
The harness arrangement according to claim 1, wherein the wire frame is embedded in the seat cushion pad, and a part of the wire frame is set to be exposed from a rear end surface of the seat cushion pad in the seat longitudinal direction. policy structure. The clip is
a locking part that is locked to the wire frame;
a holding part that holds the harness;
The harness arrangement structure according to claim 2, comprising a pair of clamping pieces. The wire frame has a substantially cylindrical shape,
The locking portions face the wire frame at different positions in the longitudinal direction of the wire frame, and are respectively locked to the wire frame by covering the wire frame from the outside in the radial direction of the wire frame. The harness arrangement structure according to claim 3. The locking portion is
a first crank part provided on one of the pair of clamping pieces, bent in a crank shape, and covering approximately half of the wire frame along the circumferential direction;
It is provided on the other clamping piece of the pair of clamping pieces, is bent in a crank shape with the wire frame in between and the first crank part is inverted, and is approximately the rest along the circumferential direction of the wire frame. a second crank part that covers half;
The harness routing structure according to claim 4, comprising: The pair of clamping pieces are
The one clamping piece and the other clamping piece are connected, the one clamping piece and the other clamping piece are opposed to each other with the pair of clamping pieces closed, and the pair of clamping pieces is opened. further comprising a hinge part that separates the one clamping piece and the other clamping piece in a state where
The holding part is
a first retaining wall provided between the first crank portion and the hinge portion of the one holding piece and provided on the outer side in the radial direction of the harness having a substantially cylindrical shape;
a second holding wall provided between the second crank part and the hinge part of the other holding piece, and provided on the outside of the harness in the radial direction;
The harness routing structure according to claim 5, further comprising: The first holding wall and the first crank part are arranged at opposite positions, and the second holding wall and the second crank part are arranged at opposite positions with the hinge part as the center. The harness routing structure according to claim 6. The harness routing structure according to claim 5, further comprising a fixing structure for fixing the clip to the wire frame. The fixed structure is
It forms part of the first crank part and can be placed above the wire frame with the first crank part and the second crank part covering the wire frame from the outside in the radial direction. a first upper wall portion;
It forms part of the second crank part and can be placed above the wire frame with the first crank part and the second crank part covering the wire frame from the outside in the radial direction. a second upper wall portion;
The harness routing structure according to claim 8, comprising: The clip includes a pair of clamping pieces having a locking part that locks on the wire frame and a holding part that holds the harness,
The pair of clamping pieces connects the one clamping piece and the other clamping piece, and when the pair of clamping pieces is closed, the one clamping piece and the other clamping piece face each other. further comprising a hinge part that separates the one clamping piece from the other clamping piece when the clamping piece is open;
The holding portion is provided between the first crank portion and the hinge portion of the one holding piece, and includes a first holding wall provided on the outside in the radial direction of the harness having a substantially cylindrical shape; further comprising a second holding wall provided between the second crank part and the hinge part of the clamping piece and provided on the outside of the harness in the radial direction;
The fixed structure is
an extending portion formed on the first retaining wall and extending in a direction opposite to the extending direction of the first upper wall portion;
formed on the second retaining wall, protruding in a direction opposite to the extending direction of the second upper wall portion, and extending above the extending portion when the pair of clamping pieces are closed; a protrusion that is arranged and can be abutted by the extension;
The harness routing structure according to claim 9, further comprising: The harness routing structure according to claim 6, further comprising a first temporary fixing structure for holding the harness between the first holding wall and the second holding wall and temporarily fixing the clip to the harness. . A second temporary fixing structure is provided for temporarily fixing the clip to the wire frame,
The second temporary fixing structure is
an upper wall part that forms part of a locking part that is locked to the wire frame and can be placed on the wire frame;
forming another part of the locking part, extending in a direction opposite to the extending direction of the upper wall part, with the upper wall part disposed on the wire frame, an extending portion that can be placed on a harness held by the holding portion;
The harness routing structure according to claim 11, comprising: A vehicle seat to which the harness arrangement structure according to any one of claims 1 to 12 is applied.