Seat for seating

Abstract

To improve wiring of electrical wiring in a seat for seating having a slide function or the like.SOLUTION: In a support frame 20 of a vehicle seat 10, an upper frame 22 attached with a seat body is relatively movable in a vehicle front and rear direction with respect to a lower frame 24 supported to a vehicle floor 12 by a leg part 26. In the leg part 26, a harness guide 66 provided with a guide surface 80 is arranged. A harness 50 is arranged along the guide surface 80 facing a vehicle rear side. As a result, in the vehicle seat 10, even when the upper frame 22 is moved in the vehicle front and rear direction together with the seat body, the harness 50 is suppressed from being exposed to a vehicle front side of the seat body and it is possible to suppress an occupant from feeling annoyance with respect to the harness 50.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a seat for sitting, such as a vehicle seat. [Background technology]

[0002] Patent Document 1 discloses a wiring structure for a wire harness that is wired across a vehicle body and a sliding seat that is slidably attached to the vehicle body. In this wiring harness wiring structure, the wire harness housed in the harness housing of the sliding seat extends from the vehicle body in a direction parallel to the sliding movement direction of the sliding seat, and is then wound and connected to the harness connection part of the sliding seat. The diameter of the wound part of the harness increases or decreases in response to the sliding movement of the sliding seat, so that the harness housing absorbs the excess length of the wire harness as the sliding seat moves. In addition, the harness housing is provided within the seat part of the sliding seat, or the wire connection part is provided on the side surface of the seat part of the sliding seat, and the harness housing is provided within an outer shield of the sliding seat that covers the harness connection part on the side surface of the seat.

[0003] Patent Document 2 discloses a seat lock release device for a reclining seat. This seat lock release device includes a rotatable unlock operation lever and a cam that rotates in conjunction with the rotation of the unlock operation lever, and an unlock cable for releasing the lock is connected to the cam. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-137339 A [Patent Document 2] JP 2007-320414 A Summary of the Invention [Problem to be solved by the invention]

[0005] In a vehicle seat, a harness may be routed between the vehicle body and the vehicle seat. In this case, if a moving mechanism such as a slide function is provided, the harness may be displaced or deformed, such as being moved or curvature changed, as the seat moves. This makes the harness more likely to be in the occupant's field of vision or to get caught by the occupant, and there is room for improvement in the routing of the harness.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a seat for sitting that has improved electrical wiring layout when equipped with a sliding function or the like. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, a first embodiment of a seating seat includes a seat body on which a person can sit, a frame that supports the seat body so that it can move in the fore-and-aft direction of the person sitting on the seat body, and a support frame that has a support part for supporting a front part of the frame in the fore-and-aft direction on a base, electrical wiring arranged from the seat body side to the base side, and a guide member that is provided on the support part, faces the rear side in the fore-and-aft direction, has an arc-shaped guide surface whose axial direction intersects the fore-and-aft direction, and guides the electrical wiring arranged from the seat body side to the base side along the guide surface.

[0008] In the seat of the first aspect, the support frame has a support portion that maintains the front portion of the frame in the front-rear direction on the base, and the frame allows the seat body, on which a person can sit, to move in the front-rear direction of the person. In addition, electrical wiring is routed between the base and the frame, and the electrical wiring moves when the frame moves in the front-rear direction.

[0009] Here, the support portion is provided with a guide member. The guide member has an arc-shaped guide surface whose axial direction intersects with the front-rear direction, and the guide surface faces rearward in the front-rear direction. The guide member guides electrical wiring arranged from the seat body side to the base side along the guide surface facing rearward in the front-rear direction.

[0010] Therefore, even if the frame is moved in the front-rear direction relative to the support portion, the movement of the electrical wiring can be suppressed at the support portion. Also, since the guide surface faces the rear side in the front-rear direction, the electrical wiring can be suppressed from moving forward of the seat body. This makes it possible to suppress the electrical wiring from being easily seen or touched by an occupant sitting in the seat body.

[0011] The seat of a second aspect is the same as the seat of the first aspect, wherein the guide surface of the guide member is an outer circumferential surface having a cylindrical outer shape.

[0012] In the seat of the second aspect, the guide surface of the guide member is an outer peripheral surface of a cylindrical shape, which allows the electrical wiring to be guided over a wide area of ​​the guide surface, effectively preventing the electrical wiring from being easily seen or touched by an occupant.

[0013] The seat of a third aspect is the seat of the first or second aspect, further comprising a restricting portion that restricts the electrical wiring routed between the seat and the guide surface from moving away from the guide surface.

[0014] In the seat of the third aspect, the restricting portion restricts the electrical wiring from moving away from the guide surface, which makes it possible to prevent the electrical wiring from moving away from the guide surface, and therefore effectively prevents the electrical wiring from being easily seen or touched by an occupant.

[0015] A fourth aspect of the sitting seat is a sitting seat as described in any one of claims 1 to 3, which is any one of the first to third aspects and further includes a rotation part that enables the frame to be rotated around a support axis provided on the support part, and enables the seat body to be positioned between a sitting position where a person can sit on it and an upright position where the seat body is raised and the rear side in the fore-and-aft direction is facing upward by rotating the frame.

[0016] In the fourth aspect of the seat, the support part is provided with a rotating part, and the rotating part is provided with a support shaft. The rotating part rotates the frame around the support shaft to position the seat body in a seating position where a person can sit, and in an upright position where the rear side of the seat body in the front-rear direction faces upward.

[0017] When the frame is rotated from the normal position to the upright position where the rear side of the seat body faces upward, the guide surface faces the rear side in the front-to-rear direction, preventing the electrical wiring from moving to the front side of the seat body, thereby preventing the electrical wiring from being easily seen or touched by an occupant sitting in the seat body.

[0018] A fifth aspect of the seating arrangement is based on the fourth aspect, and the guide member has a guide surface that is an outer peripheral surface of a cylindrical shape, and the axis of the guide surface is aligned with the axis of the support shaft.

[0019] In the seat of the fifth aspect, the outer peripheral surface of the cylindrical outer shape is made into a guide surface, and the axis of the guide surface is overlapped with the axis of the support shaft, so that the guide surface can effectively guide the electric wiring, and effectively prevent the electric wiring from being easily seen or touched by the occupant.

[0020] A sixth aspect of the seating seat is in any one of the first to fourth aspects and includes a rotation portion that enables the frame to rotate around a support shaft provided on the support portion and enables the seat body to be positioned in a seating position where a person can sit on it and an upright position in which the seat body is raised and the rear side in the fore-and-aft direction faces upward, and the guide member has a guide surface that is an outer circumferential surface of a cylindrical exterior, and the axis of the guide surface is aligned with the axis of the support shaft, and is rotated around the support shaft together with the frame.

[0021] In the sixth aspect of the seat, the rotating part rotates the frame to position the seat body in a seating position where a person can sit and in an upright position where the rear side of the seat body faces upward in the front-rear direction. The guide member has an outer peripheral surface of a cylindrical shape as a guide surface, and the axis of the guide surface overlaps with the axis of the support shaft. The restricting part restricts the electrical wiring from moving away from the guide surface.

[0022] This effectively prevents the electrical wiring from becoming separated from the guide surface when the seat body is rotated together with the frame, thereby further effectively preventing the electrical wiring from coming into view of an occupant seated in the seat body. Effect of the Invention

[0023] According to the present invention, even if the frame is moved in the fore-and-aft direction relative to the support part, the electrical wiring can be prevented from moving forward of the seat pair, thereby effectively preventing the electrical wiring from becoming easily seen or touched by occupants. [Brief description of the drawings]

[0024] [Figure 1] 1A and 1B are side views of a vehicle seat according to this embodiment, with 1A showing a normal position and 1B showing an upright position. [Diagram 2] FIG. 2 is a perspective view showing a main part of a support frame according to the embodiment. [Diagram 3](A) to (C) are side views showing the main parts of a vehicle seat, where (A) shows the state in which the seat body has been moved to the rear of the vehicle, (B) shows the state in which the seat body has been moved to the front of the vehicle, and (C) shows the state in which the seat body has been raised. [Figure 4] 1A and 1B are exploded perspective views showing a guide assembly, where 1A shows an oblique view of one axial side of the guide assembly, and 1B shows an oblique view of the other axial side of the guide assembly. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0026] 1(A) and 1(B) are side views showing the appearance of a vehicle seat 10 as a seat for sitting according to this embodiment. In the drawings, the front side of the vehicle is indicated by an arrow FR, the right side in the vehicle width direction is indicated by an arrow HR, and the upper side is indicated by an arrow UP.

[0027] 1(A) and 1(B), a vehicle seat 10 according to this embodiment has a seat body 12, and the seat body 12 is configured so that the rear side of the vehicle can be flipped up and tumbled (see FIG. 1(B)) from a normal seating position where an occupant can be seated against a vehicle floor (vehicle interior floor portion) 14 that forms the floor of the vehicle interior as a base and a vehicle body. Note that, in the vehicle seat 10, the front side of the occupant seated on the seat body 12 is the front side of the vehicle, the right side of the occupant is the right side in the vehicle width direction, and the upper side is the upper side of the vehicle.

[0028] The vehicle seat 10 is a so-called tumble seat in which the seat body 12 is put into a stowed state when raised. Hereinafter, the raised position is referred to as the raised position of the seat body 12. Such a vehicle seat 10 can be applied, for example, as a second row seat of a vehicle. Note that the vehicle seat 10 is not limited to a second row seat, and may be applied to any seat in the vehicle cabin.

[0029] The seat body 12 of the vehicle seat 10 has a seat cushion 16 and a seat back 18, and the lower end of the seat back 18 of the seat body 12 is connected to the rear end of the seat cushion 16 via a well-known reclining mechanism (not shown). The seat back 18 of the seat body 12 can be tilted forward with respect to the seat cushion 16, and when the seat back 18 of the seat body 12 is tilted forward, the seat back 18 is placed on the seating surface (the surface on which an occupant sits, the upper surface) of the seat cushion 16 (see FIG. 1(B)).

[0030] That is, the vehicle seat 10 is provided with a slide mechanism and a tumble mechanism. The slide mechanism enables the seat body 12 to move in the front-rear direction of the vehicle (solid line position and dashed line position shown in FIG. 1(A)). The tumble mechanism enables the rear side of the seat body 12 to be flipped up with the seat back 18 overlapping the seat cushion 16 (see FIG. 1(B)).

[0031] The vehicle seat 10 is provided with a support frame 20 as a stand below a seat body 12 (seat cushion 16). Fig. 2 shows a perspective view of a main portion of the support frame 20 as seen obliquely from above on the left front side of the vehicle.

[0032] 2, the support frame 20 includes an upper frame 22, a lower frame 24 as a frame, and legs 26, 28 arranged in pairs in the vehicle width direction, each of which serves as a support part. In the support frame 20, the upper frame 22 is arranged above the lower frame 24, and the leg 26 is arranged below the front side of the lower frame 24 on the right side in the vehicle width direction, and the leg 28 is arranged on the left side in the vehicle width direction.

[0033] The upper frame 22 includes a pair of side plates 30L, 30R and connecting pipes 32F, 32R. The side plates 30L, 30R are each formed in a substantially strip-like shape, with the longitudinal direction being the vehicle front-rear direction, and the side plate 30L being on the left side in the vehicle width direction, and the side plate 30R being on the right side in the vehicle width direction, so that they face each other in the vehicle width direction. The connecting pipe 32R is formed in a square tube shape, and the connecting pipe 32R connects the side plate 30L and the side plate 30R at the rear side of the vehicle. The connecting pipe 32F is formed in a long, substantially cylindrical shape (substantially round pipe shape or substantially circular rod shape), and the connecting pipe 32F connects the side plate 30L and the side plate 30R at the front side of the vehicle. As a result, the upper frame 22 is formed in a substantially rectangular frame shape when viewed from above.

[0034] The seat cushion 16 of the seat body 12 is disposed on the upper frame 22 (not shown). A seat frame (not shown), which constitutes the skeleton of the seat cushion 16, is attached to the upper frame 22, so that the seat body 12 is supported by the upper frame 22 and is supported by the support frame 20. Note that in the vehicle seat 10, the upper frame 22 is provided on the support frame 20, but the upper frame 22 may be provided on the seat body 12 (the upper frame 22 may form the seat frame).

[0035] The lower frame 24 includes a left side frame 34L in the vehicle width direction and a right side frame 34R in the vehicle width direction. The side frames 34L, 34R are each formed into a generally rectangular cylindrical shape as a whole, and are disposed parallel to each other with their longitudinal directions aligned with the vehicle front-rear direction.

[0036] A slide mechanism is formed between the pair of side plates 34A of each of the side frames 34L and 34R. The slide mechanism is a general structure including a guide rail and a slide rail (both not shown) engaged with the guide rail so as to be movable (slidable) relative to the guide rail in the longitudinal direction.

[0037] In the side frames 34L, 34R, a guide rail is attached between a pair of side plates 34A, and a slide rail is engaged with the upper side of the guide rail. In addition, the side plate 30L of the upper frame 22 is attached to the slide rail of the side frame 34L, and the side plate 30R of the upper frame 22 is attached to the slide rail of the side frame 34R (not shown).

[0038] As a result, in the support frame 20, the upper frame 22 is attached to the lower frame 24 so as to be movable relative to the vehicle front-rear direction, and the seat body 12 is supported by the lower frame 24 so as to be movable together with the upper frame 22 in the vehicle front-rear direction. Note that in the vehicle seat 10, a movement position of the seat body 12 in the vehicle front-rear direction is set, and in the vehicle seat 10, the state shown by the solid line in Fig. 1(A) is the position of the seat body 12 on the vehicle rear side, and the state shown by the dashed line in Fig. 1(A) is the position of the seat body 12 on the vehicle front side.

[0039] The leg 26 is disposed on the right side in the vehicle width direction, and the leg 28 is disposed on the left side in the vehicle width direction. The leg 26 is formed such that the vehicle front sides of the side plates 26A disposed in a pair in the vehicle width direction are connected by the back plate 26B, and the cut surface along the vehicle width direction is formed into a substantially U-shape. The leg 26 is shaped such that the middle part in the longitudinal direction is curved as a whole, one end faces upward, and the other end faces the vehicle front side. In addition, the end part of the leg 26 on the vehicle front side is bent downward.

[0040] As a result, leg portion 26 is formed with ground contact portion 26C at its tip on the front side of the vehicle facing toward the rear side of the vehicle, and ground contact portion 26D is formed from the upper end of ground contact portion 26C facing downward on the rear side of the vehicle.

[0041] The leg portion 28 includes a leg 36 and a leg 38 on the vehicle front side of the leg 36. The leg 36 has a pair of side plates 36A arranged in the vehicle width direction, the front sides of which are connected by a back plate 36B, and the cut surface along the vehicle width direction is formed into a substantially U-shape. Moreover, the leg 36 has a shape in which the middle part in the longitudinal direction as a whole is curved, one end side faces upward and the other end side faces toward the rear of the vehicle.

[0042] The legs 38 are connected at the vehicle front sides of side plates 38A (the left side in the vehicle width direction is not shown in Fig. 2) arranged in a pair in the vehicle width direction by a back plate 38B, and the cut surface along the vehicle width direction is formed into a substantially U-shape. Also, the middle part of the legs 38 in the longitudinal direction as a whole is curved, with one end facing upward and the other end facing the vehicle front.

[0043] Leg portion 28 is integrally formed by inserting leg 36 between a pair of side plates 38A of leg 38 and fixing them. As a result, leg portion 28 is formed with grounding portion 28A facing downward at leg 36, and grounding portion 28B facing downward at leg 38.

[0044] The support frame 20 has a hinge portion 40 (hinge mechanism) as a rotating portion formed on each of the legs 26, 28. Each hinge portion 40 includes a hinge shaft 42 as a support shaft and a torsion coil spring 44 as a biasing member.

[0045] The hinge shafts 42 each have an axial direction aligned with the vehicle width direction, and are inserted into a torsion coil spring 44. In the support frame 20, the legs 26, 28 are attached to the vehicle floor 14 so that the axis of the hinge shaft 42 of the leg 26 and the axis of the hinge shaft 42 of the leg 28 overlap.

[0046] As shown in Figures 1(A) and 1(B), the vehicle floor 14 is formed with a flat portion 14A whose surface facing the passenger compartment is approximately horizontal, and an inclined portion 14B whose surface facing the passenger compartment is inclined downward from the front end of the flat portion 14A.

[0047] The leg 26 of the support frame 20 has a ground contact portion 26D disposed on the flat portion 14A of the vehicle floor 14, and a ground contact portion 26C disposed on the inclined portion 14B. The leg 28 has a ground contact portion 28A on the leg 36 side and a ground contact portion 28B on the leg 38 side disposed on a flat portion (not shown) of the vehicle floor 14 (for example, a flat portion of the vehicle floor 14 that is located at a different vertical position from the flat portion 14A).

[0048] The ground contact portions 26C, 26D of the leg portion 26 and the ground contact portions 28A, 28B of the leg portion 28 are fastened and fixed to the vehicle floor 14 using bolts and nuts (not shown). At this time, the legs 26, 28 are fixed to the vehicle floor 14 so that the axes of the hinge shafts 42 of the legs 26, 28 overlap each other.

[0049] In the support frame 20, a side frame 34R of the lower frame 24 is attached to the leg portion 26, and a side frame 34L of the lower frame 24 is attached to the leg portion 28.

[0050] The side frame 34R has a pair of side plates 34A at the front end inserted between a pair of side plates 26A of the legs 26, and a hinge shaft 42 is disposed to pass through the pair of side plates 34A. The side frame 34L has a pair of side plates 34A at the front end inserted between a pair of side plates 36A of the legs 36 at the legs 28, and a hinge shaft 42 is disposed to pass through the pair of side plates 34A.

[0051] As a result, in the support frame 20, each of the side frames 34L, 34R of the lower frame 24 is supported by the legs 26, 28 and capable of rotating around the hinge axis 42, and the upper frame 22, the lower frame 24, and the seat body 12 are supported by the vehicle floor 14 and capable of rotating together around the hinge axis 42.

[0052] In addition, in the vehicle seat 10, the seat body 12 is slidable between a position at the front side of the vehicle and a position at the rear side of the vehicle when the vehicle seat 10 is in a normal position (see FIG. 1(A)) where an occupant can be seated. In addition, in the vehicle seat 10, the seat body 12 is rotated about a hinge shaft 42, so that the seat body 12 can be placed in a normal position and an upright position (see FIG. 1(B)). In addition, in the vehicle seat 10, the seat body 12 is slid toward the rear of the vehicle, and the seat back 18 is tilted forward to rotate the seat body 12 to the upright position.

[0053] In the hinge portion 40, the hinge shaft 42 is inserted into the torsion coil spring 44, and the torsion coil spring 44 is disposed between the side plates 34A of the side frames 34R, 34L attached to the legs 26, 28. The torsion coil spring 44 biases the lower frame 24 (seat body 12) around the hinge shaft 42 toward the upright position relative to the legs 26, 28. This makes it easy to rotate the seat body 12 from the normal position to the upright position in the vehicle seat 10, and also enables the seat body 12 to rotate toward the normal position against the biasing force of the torsion coil spring 44.

[0054] The vehicle seat 10 is provided with necessary mechanisms such as a mechanism for holding the seat body 12 in the slide position and a mechanism for holding the seat body 12 in the normal position and the upright position (such as a latch mechanism or a stopper mechanism). Any known configurations can be applied to these mechanisms in the vehicle seat 10.

[0055] Meanwhile, various electrical devices may be installed in the vehicle seat 10, and when the electrical devices are installed, electrical wiring is arranged for supplying power to the electrical devices and transmitting and receiving signals for controlling them. A buckle 48 constituting a seat belt device (not shown) is disposed as an electrical device in the vehicle seat 10.

[0056] The electrical equipment is not limited to the buckle 48 of the seat belt device, but includes actuators for operating the reclining mechanism and the sliding mechanism (including actuators for operating the lifting mechanism in the case where a lifting mechanism is provided). The electrical equipment includes operation switches for operating each function, and detection sensors for detecting a seated occupant. The electrical equipment includes blower fans for supplying air (cool air) to the feet of the seated occupant, between the cushion pad and the skin, and between the back pad and the skin, and further includes heaters for heating the cushion pad and the back pad. The electrical equipment includes a controller as a control means for controlling the operation of various electrical equipment in the vehicle seat 10. The electrical equipment is not limited to these, and various electrical equipment that operates electrically and can provide required functions to the vehicle seat 10 can be applied.

[0057] The buckle 48 is attached to one side plate 30R of the upper frame 22 in the support frame 20, and the buckle 48 moves integrally with the seat body 12 when the seat body 12 slides and stands up. A tongue plate attached to the seat belt is inserted into the buckle 48 when an occupant fastens the seat belt (webbing). For this reason, a switch or the like for detecting the insertion (fastening) of the tongue plate is disposed in the buckle 48.

[0058] The vehicle seat 10 uses a harness 50 as an electric wiring for electrically connecting the buckle 48 and a control device on the vehicle body side. In the vehicle seat 10, a corrugated tube is used as a protective tube (flexible protective tube), and the harness 50 is housed in the corrugated tube and protected by the corrugated tube.

[0059] In the following, for the sake of simplicity, the harness 50 housed in the corrugated tube will be simply referred to as the harness 50. In addition, in this embodiment, the harness 50 protected by the corrugated tube is used as the electrical wiring, but the electrical wiring may be a cable in which a plurality of electric wires are integrally covered with an insulating resin, and the insulating resin is further covered with a protective resin.

[0060] In the vehicle seat 10, the harness 50 is routed through the upper frame 22 toward the front side (front portion) of the vehicle, and is routed from the front portion of the upper frame 22 through the leg portion 26 (or the leg portion 28) to reach the vehicle body side (vehicle floor 14 side).

[0061] 3(A) to 3(C) show side views (side views seen from the right in the vehicle width direction) of the main parts of the support frame 20. Note that Fig. 3(A) shows the position of the seat body 12 on the rear side of the vehicle, Fig. 3(B) shows the position of the seat body 12 on the front side of the vehicle, and Fig. 3(C) shows the upright position of the seat body 12.

[0062] 2 and 3(A) to 3(C), a clip 52A having a band for fastening provided below the hinge shaft 42 is attached to the leg 26 of the support frame 20, and a longitudinal middle portion of the harness 50 is fastened to the clip 52A. A connector 54 is attached to the harness 50 on the vehicle body side of the clip 52A, and the harness 50 is connected to a cable (harness) 50A on the vehicle body side via the connector 54.

[0063] In the support frame 20, the position of the hinge shaft 42 with respect to the upper frame 22, which slides in the vehicle longitudinal direction, is below the front part of the upper frame 22. The harness 50 is pulled upward from the clip 52A, rotated around the vehicle rear side of the hinge shaft 42, and then tied to a clip 52B provided with a band for fastening, which is attached to the side plate 30R of the upper frame 22. The clip 52B may be attached to the seat main body 12 side which moves integrally with the upper frame 22.

[0064] The attachment position of the clip 52B on the side plate 30R of the upper frame 22 is a position that is rearward of the hinge shaft 42 when the seat body 12 is located at the rear of the vehicle. In addition, the attachment position of the clip 52B on the side plate 30R is a position that is approximately above the hinge shaft 42 when the seat body 12 is located at the front of the vehicle.

[0065] The length of the harness 50 between the clip 52A and the clip 52B is set to a length that allows the harness 50 to obtain a required curved diameter at the vehicle front position and the vehicle rear position of the seat main body 12. Note that the required curved diameter of the harness 50 is a curved diameter at which the harness 50 and the corrugated tube housing the harness 50 can be curved without load, and a curved diameter determined by the harness 50 and the corrugated tube can be applied.

[0066] Further, the harness 50 is of a length such that it does not protrude further toward the front side of the vehicle than the upper frame 22 at a position on the vehicle rear side of the seat body 12 .

[0067] Meanwhile, a guide assembly 60 is provided on the support frame 20. The guide assembly 60 is disposed on the support frame 20 on the outer side of the hinge shaft 42 in the vehicle width direction (outer side in the axial direction of the hinge portion 40). Each of Fig. 4(A) and Fig. 4(B) shows an exploded perspective view of the guide assembly 60. Note that Fig. 4(A) is a perspective view of the guide assembly 60 as viewed from the opposite side to the hinge shaft 42, and Fig. 4(B) is a perspective view of the guide assembly 60 as viewed from the hinge shaft 42 side.

[0068] 4(A) and 4(B), the guide assembly 60 includes a damper 62, a cover (damper cover) 64, and a harness guide 66 serving as a guide member. The damper 62 is made of metal, and the cover 64 and the harness guide 66 are made of resin.

[0069] The damper 62 includes a base 68 having a generally cylindrical outer shape, and a lever portion 70 extending radially outward from one end side in the axial direction of the base 68. The diameter of the base 68 is reduced on the side opposite the lever portion 70 as it moves away from the lever portion 70. The base 68 also has a protruding portion 68A that is generally circular when viewed in the axial direction at the end (end face) opposite the lever portion 70, and an engagement hole 68B is opened on the side surface of the hinge shaft 42. The engagement hole 68B is formed so that its axis overlaps with the axis of the base 68, and its inner shape is shaped to match the outer diameter shape of the hinge shaft 42.

[0070] Furthermore, the lever portion 70 of the damper 62 has a narrow, generally trapezoidal shape (or a generally strip-like shape) when viewed in the axial direction, and a generally semicircular notch 70A is formed at the tip of the lever portion 70. The notch 70A of the lever portion 70 penetrates the base portion 68 in the axial direction, and opens radially outward from the base portion 68.

[0071] In the leg 26 to which the guide assembly 60 is attached, the hinge shaft 42 protrudes outward in the vehicle width direction (to the right of the vehicle width) from the side plate 26A. As shown in Fig. 2, when the guide assembly 60 is attached to the support frame 20, the hinge shaft 42 protruding from the side plate 26A is inserted (fitted) into the locking hole 68B of the damper 62. In addition, the lever portion 70 of the damper 62 faces the side plate 34A of the side frame 34R, and is fastened and fixed to the side plate 34A by a screw or bolt (not shown) inserted into the notch portion 70A.

[0072] As a result, in the guide assembly 60, the base 68 of the damper 62 is disposed coaxially with the hinge shaft 42 and attached to the side frame 34R. Furthermore, with the lever portion 70 of the damper 62 fixed to the side plate 34A, rotation of the damper 62 around the hinge shaft 42 relative to the side frame 34R is restricted, and the damper 62 is made rotatable around the hinge shaft 42 integrally with the side frame 34R.

[0073] The cover 64 includes a guide mounting portion 72 that is substantially cylindrical with a bottom, and a cover plate 74 that protrudes radially outward in a substantially sector shape on one axial side (the damper 62 side) of the guide mounting portion 72. The guide mounting portion 72 is hollow and has an opening 72A that opens toward the damper 62. A plurality of ribs 72B are formed on the inner surface of the guide mounting portion 72 to narrow the inner diameter in accordance with the outer diameter shape of the base 68 of the damper 62. The ribs 72B are formed at required intervals in the circumferential direction of the inner surface of the guide mounting portion 72, and the protruding height gradually increases with increasing distance from the opening 72A (narrowing the actual inner diameter of the guide mounting portion 72).

[0074] Therefore, when the base 68 of the damper 62 is inserted through the opening 72A, the rib 72B comes into contact with the outer peripheral surface of the base 68, enabling the cover 64 to be held by the base 68 (damper 62). As a result, the damper 62 holds the cover 64 with the base 68 covered by the guide attachment portion 72 of the cover 64.

[0075] The cover plate 74 has a generally sector shape centered on the axis of the guide mounting portion 72 when viewed in the axial direction, and the peripheral edge is folded back toward the damper 62. A rib 74A protruding radially inward and a rib 74B extending in the circumferential direction are formed on the inner surface of the cover plate 74. As a result, an accommodation portion 74C capable of accommodating and holding the lever portion 70 of the damper 62 is formed inside the cover plate 74.

[0076] In the cover 64, the base 68 of the damper 62 is inserted into the opening 72A of the guide mounting portion 72, and the lever portion 70 is housed within the cover plate 74. As a result, the cover 64 is attached to the damper 62 with its rotation around the axis restricted by the lever portion 70, and covers the damper 62. In addition, in the cover 64, a substantially sector-shaped cover plate 74 is disposed on the vehicle rear side of the hinge shaft 42, and when the seat body 12 is in the normal position, the cover plate 74 covers a predetermined range below the side frame 34R as seen from the rear of the vehicle.

[0077] On the other hand, the harness guide 66 includes a substantially cylindrical guide body 76 and a guide cover 78 serving as a restricting portion formed radially outward of the guide body 76. The guide body 76 has an outer diameter larger than the outer diameter of the guide mounting portion 72 of the cover plate 74, and the guide body 76 has an outer peripheral surface serving as a guide surface 80.

[0078] An opening 76A is formed in the guide body 76 on the side opposite to the cover 64, and the opening 76A has an inner diameter narrowed to match the outer diameter of the guide mounting portion 72 of the cover 64. Also, the guide body 76 is formed with an inner wall 76B extending (along the axial direction) from the periphery of the opening 76A toward the inside of the guide body 76, and the inner wall 76B is curved in an arc shape with an inner diameter corresponding to the outer diameter of the guide mounting portion 72 of the cover 64.

[0079] The inner wall 76B is divided into a plurality of parts in the circumferential direction, and a locking portion 76C is formed between each of the divided inner walls 76B. The locking portion 76C extends from the peripheral edge of the opening 76A in the axial direction of the guide body 76, and a claw portion 76D is formed at the extended tip of the locking portion 76C, protruding radially inward.

[0080] When the guide mounting portion 72 of the cover 64, which is inserted into the guide body 76 from the side opposite to the opening 76A, reaches the opening 76A, the inner surface of the inner wall 76B of the harness guide 66 comes into close contact with the outer circumferential surface of the guide mounting portion 72. This allows the harness guide 66 to be mounted on the guide mounting portion 72 of the cover 64. At this time, the claw portions 76D of the locking portions 76C enter the locking holes 72C opened in the outer circumferential surface of the guide mounting portion 72, so that the harness guide 66 is positioned and locked to the cover 64, and removal and relative rotation are suppressed.

[0081] The guide cover 78 of the harness guide 66 is formed in a substantially arc shape within a predetermined angular range on the radial outside of the guide body 76, and the guide cover 78 is formed in an angular range that overlaps with the cover plate 74 of the cover 64. The guide cover 78 is formed with an inner diameter that allows the harness 50 to be placed between the guide surface 80 of the guide body 76 and the guide cover 78, and is integrated with the guide body 76 by a planar connecting portion 78A formed on the opposite side to the cover 64. The guide cover 78 is also formed with a curved portion 78B that is curved radially outward on one circumferential side, and the curved portion 78B extends from the connecting portion 78A on one axial side of the guide cover 78.

[0082] 2, the guide assembly 60 has a cover 64 attached to a damper 62 that is attached across the end of the hinge shaft 42 and the side frame 34R, and a harness guide 66 attached to this cover 64. This allows the harness guide 66 to rotate around the hinge shaft 42 integrally with the upper frame 22 and the lower frame 24.

[0083] At this time, the harness guide 66 is disposed so that the guide cover 78 has the curved portion 78B facing upward on the vehicle rear side of the hinge shaft 42. In the guide assembly 60, the space between the guide surface 80 and the guide cover 78 in the harness guide 66 is surrounded by the connection portion 78A and the cover plate 74 of the cover 64.

[0084] When the harness 50 is routed from the side plate 30R of the upper frame 22 to the leg 26, it is turned to the vehicle rear side of the hinge shaft 42 and passed between the guide surface 80 of the guide main body 76 of the harness guide 66 and the guide cover 78. In other words, the harness 50 is passed through a space surrounded by the cover plate 74, the guide cover 78, the connection portion 78A, and the guide surface 80 of the guide main body 76.

[0085] In the vehicle seat 10 configured as above, the seat body 12 is attached to the upper frame 22 of the support frame 20, and the support frame 20 is fixed to the vehicle floor 14 by legs 26, 28. In addition, in the vehicle seat 10, the upper frame 22 is made slidable in the vehicle front-rear direction relative to the lower frame 24 of the support frame 20. As a result, the seat body 12 is slid in the vehicle front-rear direction relative to the vehicle floor 14 in a normal position (normal rotation position) where an occupant can be seated. As a result, as shown in Fig. 1(A), the vehicle seat 10 can be moved to a position on the vehicle rear side or a position on the vehicle front side of the seat body 12, and can be positioned in a range from the vehicle rear side position to the vehicle front side position.

[0086] In addition, the support frame 20 of the vehicle seat 10 has a hinge portion 40 formed between the lower frame 24 and the legs 26, 28. The vehicle seat 10 can be tilted forward in a normal position (a position toward the rear of the vehicle) so that the seat back 18 overlaps the seat cushion 16 of the seat body 12, and the seat body 12 can be rotated about the hinge shaft 42 of the hinge portion 40. As a result, as shown in FIG. 1(B), in the vehicle seat 10, the seat body 12 can be rotated from a normal position where an occupant can sit to an upright position in which the rear side of the seat body 12 faces upward. At this time, in the vehicle seat 10, the hinge shaft 42 is held by a metallic damper 62 attached to the lower frame 24 so as to be integrally rotatable with the seat body 12, so that impacts around the hinge shaft 42 of the seat body 12 are absorbed in both the normal position and the upright position.

[0087] Meanwhile, in the vehicle seat 10, a harness 50 is routed from the upper frame 22 to which the seat body 12 is attached toward the vehicle floor 14. When the seat body 12 is moved in the vehicle longitudinal direction or rotated toward the upright position, the harness 50 is displaced, such as moving or changing its bend. For this reason, if the harness 50 is exposed from the underside of the seat body 12, the harness 50 becomes easily visible to the occupant. This may cause the occupant to find the harness 50 an eyesore or to get caught on the harness 50.

[0088] Here, in the vehicle seat 10, a guide assembly 60 is attached to the leg portion 26 of the support frame 20. The guide assembly 60 is provided with a harness guide 66 that is rotatable about the hinge shaft 42, as well as a damper 62 and a cover 64 for allowing the harness guide 66 to rotate integrally with the upper frame 22 and the lower frame 24.

[0089] A guide cover 78 is disposed on the harness guide 66 on the vehicle rear side of the hinge shaft 42 , and the harness 50 is routed between the guide cover 78 of the harness guide 66 and a guide surface 80 .

[0090] The harness 50 is wound around a guide surface 80 on the vehicle rear side of the harness guide 66. Therefore, as shown in Figures 3(A) and 3(B), even when the seat body 12 is moved from a position on the vehicle rear side to a position on the vehicle front side, the harness 50 remains disposed on the underside of the seat body 12. As a result, in the vehicle seat 10, even when the seat body 12 is moved to a position on the vehicle front side, the harness 50 is not exposed from the underside of the seat body 12 to the vehicle front side.

[0091] In addition, in the vehicle seat 10, the seat body 12 can be rotated to the upright position by tilting the seat back 18 forward at a position on the vehicle rear side of the seat body 12. Therefore, as shown in Fig. 3(C), the harness 50 is wound around the vehicle front side along the guide surface 80 in the harness guide 66. As a result, in the vehicle seat 10, even if the seat body 12 is rotated to the upright position, the harness 50 is not exposed from the underside of the seat body 12 to the vehicle front side.

[0092] Furthermore, when the seat body 12 is rotated to the upright position, the harness guide 66 is also rotated. When the seat body 12 is rotated, the guide cover 78 of the harness guide 66 is rotated to cover the upper side (the lower frame 24 side) of the harness 50 wound around the guide surface 80. Therefore, when the harness guide 66 is viewed from the vehicle rear side (diagonally upward rear side of the vehicle) of the seat body 12 arranged in the upright position, the harness 50 is covered (hidden) by the guide cover 78, so that the harness 50 is prevented from coming into view of the occupant.

[0093] Furthermore, in the guide assembly 60, the cover plate 74 of the cover 64 and the connection portion 78A of the harness guide 66 restrict movement of the harness 50 in the vehicle width direction. Therefore, in the vehicle seat 10, the harness 50 can be prevented from shifting in the vehicle width direction when the seat body 12 moves in the vehicle front-rear direction and rotates. As a result, in the vehicle seat 10, the harness 50 is not exposed from the underside of the seat body 12 to the outside in the vehicle width direction when the seat body 12 moves or rotates.

[0094] In this manner, in the vehicle seat 10, the harness guide 66 provided with the guide surface 80 is disposed on the leg portion 26, and the harness 50 is routed on the rear side of the guide surface 80 in the vehicle front-rear direction. This makes it possible to prevent the harness 50 from being exposed on the vehicle front side of the seat body 12 in the vehicle seat 10, and the harness 50 is not perceived as an eyesore by the occupant or gets caught in it.

[0095] In addition, in the vehicle seat 10, the legs 26 of the support frame 20 are provided with hinge portions 40, and the support frame 20 can be rotated about the hinge shafts 42 of the hinge portions 40 to place the seat body 12 in an upright position. At this time, in the vehicle seat 10, the guide surfaces 80 restrict the movement of the harness 50 toward the front of the vehicle. As a result, in the vehicle seat 10, even when the seat body 12 is rotated to the upright position, the harness 50 does not come into view of the occupant or become easily caught on it.

[0096] Furthermore, in the vehicle seat 10, the guide surface 80 of the harness guide 66 is circular. This allows the harness guide 66 to effectively guide the harness 50 in the vehicle seat 10, effectively preventing the harness 50 from coming into view of the occupant or becoming easily caught.

[0097] Furthermore, in the vehicle seat 10, the outer periphery of the cylindrical guide body 76 serves as a guide surface 80, and the axis of the guide surface 80 overlaps with the axis of the hinge shaft 42. As a result, in the vehicle seat 10, the harness 50 can be smoothly guided not only when the seat body 12 moves in the front-rear direction of the vehicle but also when it rotates, and the harness 50 can be more effectively prevented from coming into contact with the eyes of the occupant or becoming easily caught in it.

[0098] Furthermore, in the vehicle seat 10, the guide cover 78 is disposed facing the guide surface 80. This makes it possible to prevent the harness 50, guided by the guide surface 80, from expanding so as to move away from the guide surface 80, and to smoothly guide the harness 50. Moreover, in the guide assembly 60, the guide cover 78 prevents the harness 50 from expanding, and therefore makes it possible to prevent the harness 50 from coming into contact with the upper frame 22 and the lower frame 24 of the support frame 20.

[0099] Furthermore, in the vehicle seat 10, when the seat body 12 is rotated, the harness guide 66 arranged on the vehicle rear side of the guide surface 80 is also rotated. Therefore, in the vehicle seat 10, when the seat body 12 is arranged in the upright position, the guide cover 78 covering the vehicle rear side of the guide surface 80 covers the rear diagonally upper side of the guide surface 80. Therefore, in the vehicle seat 10, when the seat body 12 is arranged in the upright position, the harness 50 is prevented from being exposed and easily noticeable to the occupant, and poor appearance can be effectively prevented.

[0100] The functional parts in the present embodiment described above are merely examples, and the functional parts are not limited to those in this embodiment as long as they have the required functions in this embodiment.

[0101] In the above-described embodiment, the vehicle seat 10 provided with the slide mechanism and the tumble mechanism is applied. However, the seat may be provided with a slide mechanism or a tumble mechanism. The seat is not limited to a vehicle seat, and may be any seat that allows a person to sit on the seat body. [Explanation of symbols]

[0102] 10 Vehicle seats 12 Seat body 14 Car floor (base) 20 Support frame 22 Upper frame 24 Lower frame (frame) 26, 28 Legs (support part) 40 Hinge section (rotating section) 42 Hinge shaft (support shaft) 50 Harness (electrical wiring) 60 Guide Assembly 62 Damper 64 Cover 66 Harness guide (guide material) 74 Cover Plate 76 Guide body (guide member) 78 Guide cover (regulating part) 78A Connection 80 Guide surface

Claims

1. A seat body on which a person can sit; a support frame including a frame that supports the seat body so as to be movable in a front-rear direction of a person sitting on the seat body, and a support part that supports a front portion of the frame in the front-rear direction on a base; Electric wiring arranged from the seat body side to the base side; a guide member that is provided on the support portion, faces the rear side in the front-rear direction, and has an arc-shaped guide surface whose axial direction intersects with the front-rear direction, and guides the electrical wiring that is arranged from the seat main body side to the base side along the guide surface; A seat for sitting including a seat.

2. The seat according to claim 1 , wherein the guide surface of the guide member is an outer peripheral surface of a cylindrical shape.

3. The seat according to claim 1, further comprising a restricting portion that restricts the electrical wiring arranged between the seat and the guide surface from moving away from the guide surface.

4. The seat as described in claim 1, further comprising a rotation portion that enables the frame to rotate around a support axis provided in the support portion, and that enables the seat body to be positioned in a seating position where a person can sit on it and an upright position in which the seat body is raised and the rear side in the fore-and-aft direction is facing upward by rotating the frame.

5. 5. The seat according to claim 4, wherein the guide surface of the guide member is an outer peripheral surface of a cylindrical shape, and an axis of the guide surface is aligned with an axis of the support shaft.

6. a rotation unit that allows the frame to rotate around a support shaft provided in the support unit, and that allows the seat body to be positioned at a seating position where a person can sit and at an upright position where the seat body is raised and the rear side in the front-rear direction faces upward by rotating the frame, The seat of claim 1, wherein the guide surface of the guide member is an outer peripheral surface of a cylindrical shape, the axis of the guide surface is aligned with the axis of the support shaft, and the guide member is rotated around the support shaft together with the frame.

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