Vehicle seat structure

Abstract

To restrain a routing material from being exposed from a seat to a vehicle cabin by adjusting looseness of the routing material which is routed around a seat for a vehicle.SOLUTION: A seat structure for a vehicle comprises a wiring harness 8 which is routed in a seat 1 including a cushion material 41 in a loosened state, and a looseness adjustment part 5 which adjusts looseness. A region of the wire harness 8 located around the looseness adjustment part 5 is disposed to adjoin the cushion material 41. A protrusion part 48 is provided between the wire harness 8 which positions around the looseness adjustment part 5 and the cushion material 41.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat structure. [Background technology]

[0002] Vehicle seats, such as a driver's seat and a passenger seat, are movably mounted on seat rails installed on the floor of the vehicle. Such seats typically include a seat base, a seat back, and a reclining mechanism that adjusts the position of the seat back relative to the seat base. Furthermore, the vehicle seat may be equipped with electrical components, such as an airbag device, on the widthwise side of the seat back. When the seat moves forward and backward on the seat rails, or when the seat back is tilted by the reclining mechanism, the electrical components, such as the airbag device, also move.

[0003] Electrical components such as airbag devices are connected to wiring materials such as electric wires that are connected to batteries, etc. The wiring materials are routed behind or below the seat and connected to the battery, etc. The length of the wiring materials is set so that they can follow the movement of the electrical components, etc., and so they are routed in a slackened state around the seat, for example, around the seat frame. Therefore, if the wiring cannot be routed as intended, the slackened portion of the wiring material may be exposed inside the vehicle cabin.

[0004] To address this type of slack in wiring materials, Patent Document 1 provides a slack-removing section on the underside of the seat cushion to prevent slack in the wiring material (wire harness). In this example, a looped rubber band is provided. One end of the looped rubber band is attached to an S-shaped spring inside the seat cushion, and the other end is attached to the wire harness, so that the elastic force of the looped rubber band is used to absorb slack. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-142191 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above-described structure, when the slack is removed by the slack removal section in a wire harness located near the cushion material of the vehicle seat, a portion of the wire harness may sink from the outer surface of the cushion material to the inside, causing a dent in the cushion material. This may result in a situation where the slack in the wire harness cannot be completely removed.

[0007] If the slack is not sufficiently removed, the slack portion of the wire harness will protrude into the vehicle interior, damaging the aesthetics of the vehicle interior. The slack portion may also come into contact with the seat cover, causing abnormal noise. Furthermore, if the wire harness sinks into the cushioning material, it may not be able to follow the movement of the electrical components described above. Therefore, the structure of the above example leaves room for improvement in terms of suppressing slack in the wiring material routed around the seat.

[0008] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a vehicle seat structure that can adjust the slack in the wiring material that is routed around the vehicle seat and prevent the wiring material from being exposed from the seat into the vehicle cabin. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides a vehicle seat structure, comprising: a vehicle seat having a cushion material, a wiring material that is wired in a loose state in the vehicle seat; for a slack adjustment section provided on the seat for adjusting the slack of the wiring material; , and is equipped with. In the vehicle seat structure, The cushion material has a seat cushion and a seat back cushion extending upward from a rear portion of the seat cushion, and a portion of the wiring material located around the slack adjustment portion is arranged across the seat back cushion and the seat cushion, The portion of the wiring material; the seat back cushion and the seat cushion Between The seat cushion is provided so as to straddle the seat back cushion and the seat cushion. A sheet-like portion is provided. [Effects of the Invention]

[0010] According to the present invention, it is possible to adjust the slack in the wiring material that is routed around the periphery of a vehicle seat, and to prevent the wiring material from being exposed from the seat into the vehicle cabin. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a seat showing an embodiment of a vehicle seat structure according to the present invention; [Figure 2] FIG. 2 is a perspective view showing the seat of FIG. 1 with the cushioning material removed. [Figure 3] FIG. 2 is a rear view of the seat of FIG. 1. [Figure 4] 4 is a rear view showing a state in which an upper skin member and a lower skin member of FIG. 3 have been removed. [Figure 5] 5 is a rear view showing a state in which the protruding portion of the upper cover material and the lower cover material are attached to the cushion material of FIG. 4.

[0023] FIG. [Figure 6] 6 is an enlarged rear view showing the slack adjusting section and its periphery in FIG. 5. FIG. [Figure 7] 7 is a perspective view showing a state in which the lower skin member of FIG. 6 has been peeled downward. [Figure 8] 6 is a cross-sectional view schematically showing the relationship between the slack adjuster, the wire harness, and the protrusion in FIG. 5. FIG. [Figure 9] FIG. 6 is a rear view showing a modified example of the slack adjusting section of FIG. 5. [Figure 10] FIG. 8 is a perspective view showing a modified example of the slack adjusting section of FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, one embodiment of a vehicle seat structure for a vehicle according to the present invention will be described with reference to the drawings (Figs. 1 to 9). In the drawings, the direction of the arrow Fr indicates the front in the fore-and-aft direction of the vehicle seat 1. In the description of the embodiment, the "front portion (front end) and rear portion (rear end)" correspond to the front and rear in the fore-and-aft direction of the seat. Furthermore, the front in the fore-and-aft direction of the seat in this embodiment corresponds to the front in the fore-and-aft direction of the vehicle. Furthermore, the arrows R and L indicate the right and left sides when an occupant is seated in the seat 1. Furthermore, the arrow U indicates upward.

[0013] 1 and 2, a vehicle seat 1 of this embodiment has a structure of a front row seat such as a driver's seat or a passenger seat that can move in the front-rear direction on seat rails 2. The seat rails 2 are attached to a floor panel (not shown) that constitutes the floor portion of the vehicle cabin.

[0014] The vehicle seat 1 of this embodiment has cushion materials 20, 40, a wire harness (wiring material) 8 is routed in a slack state in the vehicle seat 1, and a slack adjustment unit 5 is provided to adjust the slack of the wire harness 8. A portion of the wire harness 8 located around the slack adjustment unit 5 is disposed adjacent to the cushion materials 20, 40. A sheet-shaped portion is disposed between this portion and the cushion materials 20, 40. Each member constituting the vehicle seat 1 will be described below.

[0015] First, a description will be given of the basic configuration of the vehicle seat 1. The vehicle seat 1 has a seat portion 10 and a seat back 30. The seat portion 10 and the seat back 30 will be described below.

[0016] First, the seat 10 will be described. As shown in Figures 1 to 3, the seat 10 is the portion on which an occupant sits, and includes a seat frame 11, a seat cushion (cushion material) 20, and a seat cover member 22. As shown in Figure 2, the seat frame 11 is a portion that forms the skeleton of the seat 10. The seat frame 11 is arranged on both sides in the seat width direction (left and right), and includes side frames 12 that extend in the front-to-rear direction of the seat, a front frame 13 that extends in the seat width direction and is joined to the front portions of the left and right side frames 12, and a rear frame 14 that extends in the seat width direction and is joined to the rear portions of the left and right side frames 12.

[0017] A reclining mechanism 51 is provided at the rear of the side frame 12 located on the right side. In this example, the reclining mechanism 51 is a mechanism that allows the seat back 30 to be tilted so that it faces the seat portion 10. The lower portion of the side frame 12 is movably attached to the seat rail 2 via a running portion (not shown).

[0018] 1 and 3, the seat cushion 20 has elastic properties and is installed on the upper part of the seat frame 11. A seating surface 20a on which an occupant sits is provided on the upper part of the seat cushion 20. The seat cover member 22 covers the seating surface 20a, the front part, and both left and right sides of the seat cushion 20 by covering the seating surface 20a, the front part, and both left and right sides of the seat cushion 20 from above.

[0019] As shown in Figures 1 and 2, the seat back 30 extends upward from the rear of the seat portion 10 and is configured to support, in particular, the upper body of an occupant seated on the seat portion 10. The seat back 30 has a seat back frame 31, a seat back cushion (cushion material) 40, an upper skin member (first skin member) 47, and a lower skin member (second skin member) 49. As shown in Figures 2 and 3, the seat back frame 31 has a frame main body 32, a vertical frame 37, a connecting member 38, and an S-shaped spring 39.

[0020] 2, the frame main body 32 is a member that constitutes the framework of the seatback frame 31, and is formed into a substantially rectangular shape by bending a pipe-shaped member. The frame main body 32 has an upper frame 33 that extends in the seat width direction, left and right back side frames 34 that extend downward from the left and right ends of the upper frame 33 and are arranged parallel to each other, and a lower frame 35 that extends in the seat width direction so as to connect the lower ends of the left and right back side frames 34. The upper frame 33 and the lower frame 35 are each horizontal and extend parallel to each other.

[0021] As shown in FIG. 4, the S-shaped spring 39 is arranged along the seat width direction so as to connect the left and right back side frames 34 of the frame main body 32. In this example, two S-shaped springs are arranged spaced apart in the vertical direction. A slack adjustment unit 5 is attached to the S-shaped spring 39 located on the lower side. Details of the slack adjustment unit 5 will be described later.

[0022] As shown in Figure 2, the vertical frame 37 is a member that extends upward from the rear of the right side frame 12 of the seat 10, and is attached to the back side frame 34 on the right side of the frame main body 32. The upper part (upper end) of the vertical frame 37 is located between the center and the upper end of the back side frame 34 in the up-down direction. The lower part of the vertical frame 37 is connected to the rear of the right side frame 12 of the seat 10 via a reclining mechanism 51. In other words, the vertical frame 37 is rotatable around the rotation axis of the reclining mechanism 51.

[0023] 2, an airbag device (electrical component) 53 is attached to the vertical frame 37. That is, the airbag device 53 rotates integrally with the vertical frame 37. The airbag device 53 extends along the longitudinal direction of the vertical frame 37, and a wire harness (wiring material) 8 is connected to the airbag device 53. The wire harness 8 in this embodiment supplies power to the airbag device 53 from a battery device (not shown) mounted on the vehicle. The airbag device 53 in this example is a side airbag that protects an occupant in the event of a side collision, and is disposed on the back side frame 34 on the outer side in the vehicle width direction within the vehicle cabin.

[0024] The connecting member 38 is rotatably attached to the rear of the side frame 12 on the left side of the seat 10, and is attached to the back side frame 34 on the left side of the frame main body 32. The frame main body 32 in this embodiment is tiltably attached to the rear of the seat frame 11 via the vertical frame 37 and the connecting member 38. Note that the reclining mechanism 51 in this embodiment is provided only on the right side of the seat 10 (only on one side in the vehicle width direction). Therefore, the pivot axis for tilting the seat back 30 in this example is provided at the rear of each of the left and right side frames 12, rather than in a pipe-shaped member connecting the left and right side frames 12 that make up the seat frame 11.

[0025] As shown in FIGS. 1, 3, and 4, the seatback cushion 40 includes an upper cushion 41 and a back pad 45. The upper cushion 41 includes a main body 42, side back bodies 43, and a recess 44. The main body 42 has elastic properties and covers the frame main body 32 of the seatback frame 31 from above. The main body 42 includes a support surface 42a that supports the occupant's back. The side back bodies 43 are disposed on the outer sides of the main body 42 in the seat width direction and extend in the vertical direction. The recess 44 is disposed on the rear side of the main body 42, between the left and right side back bodies 43, and is recessed toward the front of the seat. The upper end of the recess 44 is located below the vertical middle of the main body 42. Two S-shaped springs 39 are disposed inside the recess 44 so as to cross the recess 44. The lower end of the recess 44 is open downward. The upper cushion 41 is covered with an upper cover member 47.

[0026] As shown in Figures 4 and 5, the back pad 45 is disposed below the recess 44 and extends in the seat width direction. The back pad 45 is disposed so as to cover the lower frame 35 of the frame main body 32 of the seatback frame 31 from behind. In this embodiment, the wire harness 8 is routed above the back pad 45. The back pad 45 is also covered with a lower skin member 49. In this example, the lower skin member 49 covers the back pad 45 from behind and extends in the seat width direction.

[0027] As shown in FIGS. 1 and 3 , the upper cover member 47 is a trim that covers the main body portion 42 of the seatback cushion 40 from above. The upper cover member 47 covers the main body portion 42 including the support surface 42a, the side back portion 43, and the recessed portion 44. Furthermore, as shown in FIGS. 5 and 6 , the upper cover member 47 of this embodiment is provided with a protruding portion (sheet-like portion) 48. The protruding portion 48 is a portion that protrudes outward from a lower portion of the outer portion of the upper cover member 47 in the seat width direction. That is, the protruding portion 48 protrudes outward from a lower corner of the upper cover member 47 and forms a strip shape. In this example, the protruding portion 48 is formed as the sheet-like portion described above and is arranged to cover the rear surface of the back pad 45. A flexible fiber material is used for the protruding portion 48 (sheet-like portion). However, fabric (woven fabric, knitted fabric, nonwoven fabric, etc.) or leather (natural leather, synthetic leather) may also be used. Furthermore, the protruding portion 48 (sheet-like portion) may be a plate-like member such as a resin plate. The plate-like member preferably has a shape or is made of a material that allows it to break or bend elastically when subjected to a load.

[0028] Here, the routing of the wire harness 8 will be described. As shown in Figs. 5 to 7, the wire harness 8 extends so as to connect the wire connection portion 3 provided on the left seat rail 2 to the airbag device 53. Although not shown, the wire harness 8 also extends so as to connect the battery device to the wire connection portion 3 via the wire connection portion 3 and the like. The wire connection portion 3 is a relay contact point of the wire harness 8, and electrically and mechanically connects the wire harness 8 between the airbag device 53 and the wire connection portion 3 and the wire harness 8 between the connection portion and the battery device.

[0029] The following describes the routing of the wire harness 8 connecting the wire connection part 3 and the airbag device 53. As shown in Figs. 4 to 6, the wire harness 8 extends from the wire connection part 3 toward the rear of the seat below the seat cushion 20. Here, the middle part of the wire harness 8 extending rearward in the front-to-rear direction of the seat is supported in a slack state by a spring provided in the seat frame 11. The wire harness 8 extends in a slack state from the part supported by the spring to the left side below the seat back frame 31.

[0030] Furthermore, the wire harness 8 routed below the seatback frame 31 curves upward in a slack state, extends to an upper portion of the back pad 45, curves toward the right at the upper portion, and extends along the seat width direction at the upper portion of the back pad 45 to the right end of the upper portion of the back pad 45. Furthermore, the wire harness 8 curves upward at the right end of the upper portion of the back pad 45, extends along the vertical frame 37, and is connected to, for example, the lower portion of the airbag device 53. Although not shown in the drawings, the portion of the wire harness 8 routed along the seat frame 11 and the seatback frame 31 is slidably attached to the seatback frame 31 via a plurality of fixing members, such as clips.

[0031] As described above, the wire harness 8 is routed in a slack state between the seat frame 11 and the seat back frame 31. The vehicle seat structure of this embodiment is configured so that the slack of the wire harness 8 can be adjusted by the slack adjustment unit 5.

[0032] The slack adjustment unit 5 is provided on the rear side of the main body 42 of the seatback cushion 40. The main body of the slack adjustment unit 5 is band-shaped and is made of elastic webbing, for example, made by weaving together polyester fiber yarn and urethane rubber yarn. As shown in FIGS. 4 to 7, the main body of the slack adjustment unit 5 is provided with a ring-shaped portion 5a and a fixed portion 5b. The fixed portion 5b is attached to the left side of the lower S-shaped spring 39. In this example, it is made of resin and has a hook shape as shown in FIG. 8, and is hooked onto the S-shaped spring 39 by the hook shape. The ring-shaped portion 5a is made of a fiber material mixed with a resin material having elastic properties, and the wire harness 8 is inserted into the ring-shaped portion 5a. With the fixed portion 5b attached to the S-shaped spring 39, the wire harness 8 is inserted into the ring-shaped portion 5a, causing the slack adjustment unit 5 to pull the wire harness 8 upward. By pulling up the wire harness 8, tension acts on the wire harness 8, and the slack of the wire harness 8 is adjusted.

[0033] Next, the relationship between the protrusion 48 and the wire harness 8 will be described. In this embodiment, the portion of the wire harness 8 located around the slack adjustment unit 5 is disposed adjacent to the seatback cushion 40. In this example, the portion located around the slack adjustment unit 5 is the portion of the wire harness 8 that is pulled upward by the slack adjustment unit 5 and that is routed below the annular portion 5a, as shown in FIGS. 5 and 6, and corresponds to areas A and B indicated by dashed lines in FIG. 4. The protrusion 48 is disposed between this portion and the upper cushion 41 and the back pad 45. The width (length in the short direction) of the protrusion 48 is set to be wider than the range of movement of the wire harness 8 located below the slack adjustment unit 5 when the reclining mechanism 51 is operated.

[0034] In this embodiment, by providing the slack adjustment unit 5, it is possible to prevent the wire harness 8 from protruding out of the vehicle seat 1 when part of the wire harness 8 is in a slack state. In addition, as shown in Fig. 5 and Fig. 6, the wire harness 8 is formed into a V-shape that opens downward by the slack adjustment unit 5, and is therefore routed so as to be less likely to protrude out of the seat 1.

[0035] 4 shows a state in which the upper cover member 47 and the lower cover member 49 are removed. In the state shown in Fig. 4, the wire harness 8 located below the slack adjustment unit 5 presses the upper cushion 41 in area A shown by the dashed line in Fig. 4 and presses the back pad 45 in area B, which may cause the wire harness 8 to sink into the upper cushion 41 and the back pad 45. In contrast, in the present embodiment, when the vehicle seat 1 moves on the seat rails 2 or when the seat back 30 is tilted by the reclining mechanism 51, it is possible to prevent the wire harness 8 located around the slack adjustment unit 5 from sinking into the upper cushion 41 and the back pad 45 in areas A and B shown in Fig. 4. As a result, the slack in the wire harness 8 is efficiently absorbed, while preventing the wire harness 8 from being exposed to the interior of the vehicle and from coming into contact with the skin members of the vehicle seat 1 (in this example, the upper skin member 47 and the lower skin member 49) and the like, which would cause abnormal noise.

[0036] 5 and 6, the protrusion 48 of this embodiment extends along the longitudinal direction of the wire harness 8 located around the slack adjustment unit 5. That is, the protrusion 48 extends in the direction in which the wire harness 8 located below the slack adjustment unit 5 extends, and obliquely extends upward from the lower left corner of the rear surface of the seat toward the inside in the seat width direction. This makes it possible to reduce the area over which the wire harness 8 located below the slack adjustment unit 5 comes into direct contact with the seatback cushion 40, and further prevents the wire harness 8 from sinking into the upper cushion 41 and the back pad 45.

[0037] In addition, in this embodiment, the protrusion 48 is not easily bent because it is connected to the upper cover member 47. Therefore, the wire harness 8 is not easily sunk into the seat back cushion 40.

[0038] In this embodiment, the upper end (one end) of the protrusion 48 in the longitudinal direction is connected to the slack adjustment unit 5, and the lower end (the other end) of the protrusion 48 is connected to the lower part of the upper skin member 47. This makes the protrusion 48 less likely to bend, and therefore the wire harness 8 is less likely to sink into the seatback cushion 40. Furthermore, since the upper skin member 47 is connected to the slack adjustment unit 5 via the protrusion 48, the occurrence of wrinkles and the like in the upper skin member 47 can be suppressed.

[0039] In this embodiment, the cover member covering the seat back 30 includes an upper cover member 47 and a lower cover member 49, and the protrusion 48 is connected to the upper cover member 47. In addition, the protrusion 48 and the lower cover member 49 are arranged in an overlapping state between the wire harness 8 and the seat back cushion 40 (upper cushion 41 and back pad 45). That is, in this embodiment, the seat back cushion 40, the protrusion 48, the lower cover member 49, and the wire harness 8 are arranged in this order from the front side to the rear side of the seat.

[0040] Because the protrusion 48 and the lower skin member 49 are arranged to overlap, the tension acting on the wire harness 8 from the slack adjustment unit 5 is transmitted to the seatback cushion 40 from below the slack adjustment unit 5 via the protrusion 48 and the lower skin member 49. This increases the area over which the force of the wire harness 8 pressing against the seatback cushion 40 acts. As a result, the effect of suppressing the wire harness 8 from sinking into the seatback cushion 40 can be further improved.

[0041] In addition, in this embodiment, the protrusion 48 and the lower skin member 49 are arranged to be offset in a direction (seat width direction) that intersects with the direction (seat front-rear direction) in which the wire harness 8 located around the slack adjuster 5 faces the upper cushion 41. That is, in this example, the protrusion 48 and the lower skin member 49 are arranged to be offset from each other in the seat width direction. This further enhances the effect of preventing the wire harness 8 from sinking into the seatback cushion 40.

[0042] Furthermore, the protrusion 48 in this embodiment is disposed further rearward (outward) from the seat than the lower skin member 49. The friction coefficient of the portion of the lower skin member 49 facing the protrusion 48 is set to be greater than the friction coefficient of the portion of the protrusion 48 facing the wire harness 8. This makes it possible to prevent misalignment between the protrusion 48 and the lower skin member 49, further improving the effect of preventing the wire harness 8 from sinking into the seatback cushion 40.

[0043] In this embodiment, the upper and lower skin members 47 and 49 are made of polyester, and the lower skin member 49 has a rougher surface than the upper skin member 47. The seat cushion 20 and the seat back cushion 40 are made of a foam material such as urethane.

[0044] In this embodiment, the protrusion 48 is connected to the flexure adjustment unit 5. This makes it easier to arrange the protrusion 48 adjacent to the wire harness 8 inserted through the annular portion 5a of the flexure adjustment unit 5. Furthermore, the protrusion 48 is connected to the slack adjustment unit 5 by sewing. For example, as shown in FIG. 8 , at the sewn portion (connecting portion 5c), the portion attached to the S-shaped spring 39, the annular portion 5a, and the protrusion 48 of the upper skin member 47 may be sewn together. This allows the protrusion 48 and the slack adjustment unit 5 to be connected without using a fixing member such as a bracket, making it less likely for an occupant to receive an impact even if they touch the connecting portion 5c, and reducing slack. Note that the method of connecting the protrusion 48 and the flexure adjustment unit 5 is not limited to sewing. They may be bonded with an adhesive, or they may be integrally molded and connected, or they may be connected using a fixing member such as a clip or bracket. If a clip or bracket is used, it is preferable that it is as small as possible.

[0045] The description of the present embodiment is merely an example for explaining the present invention, and does not limit the invention described in the claims. Furthermore, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications are possible within the technical scope described in the claims.

[0046] In this embodiment, the electrical component to which the wire harness 8 is connected is the airbag device 53, but is not limited to this. For example, it may be an electric motor that drives a position adjustment mechanism (reclining mechanism 51) or the like. Furthermore, in this embodiment, the wire harness 8 is an assembly of electric wires that supplies power, but is not limited to this. For example, it may be an air tube or the like that supplies a fluid (liquid or gas).

[0047] The deflection adjustment unit 5 is configured as a deflection adjustment band made of a fiber material with elastic properties, but is not limited to this. For example, it may be configured as an elastic material such as rubber. It is also possible to use a deflection adjustment belt mechanism that can be wound up using a spiral spring or a winding mechanism such as an electric motor.

[0048] In addition, in this embodiment, the slack adjustment unit 5 is attached to the rear of the seat back 30, but this is not limiting. For example, it may be provided at the rear of the seat frame 11. In this case, the protrusion 48 should be disposed between the wire harness 8 located around the slack adjustment unit 5 and the seat cushion 20.

[0049] Furthermore, in this embodiment, the slack adjusting part 5 is attached to the S-shaped spring 39 of the seat back by the fixing part 5b, but this is not limited to this. For example, as shown in Fig. 9, the fixing part 5b may be formed in a band shape that extends so as to be slightly inclined outward as it extends downward, and may be formed to include a part that hooks onto the S-shaped spring 39 and a part that is sewn to the protruding part 48. As shown in Fig. 9, a second connecting part 5d may be provided in the part that is sewn to the protruding part 48. In this case, the second connecting part 5d may be sewn, for example, in a U-shape.

[0050] In addition, the reclining mechanism 51 of this embodiment has been described as an example in which the seat back 30 is tilted relative to the seat portion 10, but is not limited to this. It may also be a mechanism that rotates the seat portion 10 relative to the upright seat back 30. In this case, it is preferable to provide the slack adjustment unit 5 on the seat portion frame 11.

[0051] In this embodiment, the slack adjustment unit 5 is described as being band-shaped, but is not limited to this. For example, it may be a mechanism that can pull a wiring material such as the wire harness 8 using the elastic force of a spring.

[0052] Furthermore, in this embodiment, the protrusion 48 is sewn to the upper cover member 47, but this is not limiting. It may be formed integrally with the upper cover member 47. Furthermore, for example, the protrusion 48 may be a sheet-shaped (thin plate-shaped) member that is disposed between the cushion materials 20, 40 and a portion of the wire harness 8 that is located around the slack adjusting portion 5, independent of the upper cover member 47. Furthermore, the protrusion 48 may be provided on the lower cover member 49, or may be provided on the rear portion of the seat cover member 22.

[0053] Furthermore, in this embodiment, the protrusion 48 is fixed to the S-shaped spring 39, which is a support member that supports the cushioning material, via the slack adjustment part 5, but this is not limiting. For example, the protrusion 48 may be fixed to a support member such as the S-shaped spring 39 via a fixing member such as a hook or a fabric member that is different from the fixing part 5b of the slack adjustment part 5.

[0054] 7, in the present embodiment, the slack adjuster 5 has the annular portion 5a extending from the connecting portion 5c connected to the protrusion 48 as a base point in a direction away from the extending direction of the protrusion 48, so that the wire harness 8 is arranged to be gently inclined and gently curved at and around the annular portion 5a. This allows the wire harness 8 to slide easily relative to the annular portion 5a. Furthermore, since the fixing portion 5b extends along the extending direction of the protrusion 48, tension can be easily applied to the protrusion 48.

[0055] 10, the annular portion 5a may be extended along the extending direction of the fixing portion 5b or the extending direction of the protruding portion 48. By configuring the annular portion 5a in this manner, the wire harness 8 can be arranged close to the central region of the protruding portion 48. As a result, even if the wire harness 8 moves or bends in the vehicle width direction, contact with the protruding portion 48 is maintained, and contact with the recessed portion 44 of the upper cushion 41 of the seatback cushion 40 is easily prevented. [Explanation of symbols]

[0056] 1 seat (vehicle seat) 2 seat rails 3 Wire Connections 5 Slack adjustment section 5a Annular section 5b Fixed part 5c Connecting part 5d 2nd connection part 8 Wire harness (wiring material) 10 Seat area 11 Seat frame 12 Side frame 13 Front frame 14 Rear frame 20 Seat cushion (cushioning material) 20a seating surface 22 Seat cover member 30 Seatback 31 Seat back frame 32 Frame body 33 Upper frame 34 Backside Frame 35 Lower frame 37 Vertical Frame 38 Connecting member 39 S-shaped spring 40 Seat back cushion (cushioning material) 41 Upper cushion 42 Main body 42a Support surface 43 Side back section 44 Recess 45 Back Pad 47 Upper skin member (first skin member) 48 Protruding part (sheet-shaped part) 49 Lower skin member (second skin member) 51 Reclining mechanism 53 Airbag device (electrical components)

Claims

1. A wiring material that is wired in a loose state in a vehicle seat having a cushion material; a slack adjustment portion provided in the vehicle seat and configured to adjust slack of the wiring material, The cushioning material includes a seat cushion and a seat back cushion extending upward from a rear portion of the seat cushion, The portion of the wiring material located around the slack adjustment portion is disposed across the seat back cushion and the seat cushion, A vehicle seat structure, characterized in that a seat-shaped portion is provided between the portion of the wiring material and the seat back cushion and the seat cushion, so as to straddle the seat back cushion and the seat cushion.

2. A vehicle seat having a cushion material, a wiring material that is wired in a loose state, a slack adjustment unit provided in the vehicle seat and configured to adjust the slack of the wiring material; In the vehicle seat structure, a portion of the wiring material located around the slack adjustment portion is arranged so as to be aligned with the cushion material, A sheet-like portion is provided between the portion of the wiring material and the cushion material, The vehicle seat structure, wherein the seat-like portion is connected to a covering material that covers the vehicle seat from the outside.

3. A vehicle seat having a cushion material, a wiring material that is wired in a loose state, a slack adjustment unit provided in the vehicle seat and configured to adjust the slack of the wiring material; In the vehicle seat structure, a portion of the wiring material located around the slack adjustment portion is arranged so as to be aligned with the cushion material, A sheet-like portion is provided between the portion of the wiring material and the cushion material, the sheet-like portion is disposed to extend between a cover material that covers the vehicle seat from the outside and the slack adjustment portion, a seat structure for a vehicle, characterized in that one longitudinal end of the seat-like portion is connected to the slack adjustment portion, and the other longitudinal end of the seat-like portion is connected to the upholstery material.

4. A vehicle seat having a cushion material, a wiring material that is wired in a loose state, a slack adjustment unit provided in the vehicle seat and configured to adjust the slack of the wiring material; In the vehicle seat structure, a portion of the wiring material located around the slack adjustment portion is arranged so as to be aligned with the cushion material, A sheet-like portion is provided between the portion of the wiring material and the cushion material, The slack adjustment portion is formed of a fiber material containing a resin material having elastic properties, and has an annular portion through which the wiring material is inserted, The vehicle seat structure, wherein the sheet-like portion is sewn to the slack adjustment portion.

5. 5. The vehicle seat structure according to claim 1, wherein the sheet-like portion extends along the longitudinal direction of the portion of the wiring material.

6. 6. The vehicle seat structure according to claim 1, wherein one longitudinal end of the seat-like portion is connected to a support member that supports the cushion material.

7. the upholstery material includes a first upholstery material that covers an upper portion of the vehicle seat, and a second upholstery material that is disposed below the first upholstery material and covers a lower portion of the vehicle seat, the sheet-like portion is connected to the first skin material, 4. The vehicle seat structure according to claim 2, wherein the seat-like portion and the second cover material are arranged in an overlapping state between the wiring material and the cushion material.

8. 8. The vehicle seat structure according to claim 7, wherein the sheet-like portion and the second upholstery material are arranged offset in a direction intersecting a direction in which the portion of the wiring material and the cushion material face each other.

9. the sheet-like portion is disposed outside the second skin material, 9. The vehicle seat structure according to claim 7, wherein a friction coefficient of a portion of the second cover material facing the sheet-like portion is set to be larger than a friction coefficient of a portion of the sheet-like portion facing the wiring material.

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