Vehicle seat

Abstract

To improve sitting comfort performance and posture stability by a method other than increasing the hardness of a seat pad.SOLUTION: A vehicle seat 10 comprises: a seat 20 including a front insert wire 40 and a rear insert wire 50 which are disposed inside a seat pad 21; a backrest 30; and a suspending structure 70 configured to engage a seat cover 22 with a front suspending groove 71 and a rear suspending groove 72 of a seat pad 20. The front insert wire 40 includes a front main load receiving portion 41 which protrudes backward from the peripheral portion, and the rear insert wire 50 includes a rear main load receiving portion 51 which protrudes forward from the peripheral portion. The rear insert wire 50 is disposed at a position where at least the rear main load receiving portion 51 is ahead of the rear suspending groove 72; and the front insert wire 40 is disposed at a position where at least the front main load receiving portion 41 is behind the front suspending groove 71.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] As seat cushions constituting the seat of vehicle seats, those equipped with a seat pad made of foam and those with an elastically deformable insert wire inserted inside the seat pad are used (for example, see Patent Document 1). The manner in which the occupant is supported by these seat pads, insert wires, etc. affects the sitting comfort and posture stability; for example, if the balance of pressure in the front-rear direction on the lower body of the occupant is appropriate and the occupant's pelvis can be kept upright, the sitting comfort and posture stability will be good, but if this is not the case, the sitting comfort and posture stability will inevitably be poor.

[0003] Specifically, the following cases can have a negative effect on seating comfort and posture stability. For example, if the seat pad is soft, the buttocks will sink in and the pelvis will drop (collectively referred to as "buttock drop" in this specification), causing the pelvis to roll or tilt backward and resulting in poor posture (see Figure 19). Also, if the buttocks shift forward due to poor posture or the like (referred to as "forward shift" of the buttocks in this specification), the flesh and bones of the buttocks will feel as if they are being pulled apart, and sometimes a numbing sensation will occur (referred to as a "shear sensation" in this specification). Incidentally, the shear phenomenon tends to be more pronounced when the buttocks drop.

[0004] One of the conventional means of improving the low ratings associated with the phenomena and sensations such as "sagging," "forward slippage," and "shear feeling" described above has been to increase the hardness of the urethane seat pad to make them harder. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-091544 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, there is a limit to how much the seating comfort and posture stability can be improved simply by increasing the hardness of the seat pad.

[0007] Therefore, an object of the present invention is to provide a vehicle seat that is capable of improving sitting comfort and posture stability by a method other than increasing the hardness of the seat pad. [Means for solving the problem]

[0008] In order to solve such a problem, the present inventors have focused on the insert wires 40', 50', which are components of the seat cushion 20', and have conducted various studies (see FIG. 16, etc.). Conventionally, in a structure that prioritizes seating comfort, it has been common to avoid a layout in which the insert wires 40', 50' make linear contact with the vicinity directly below the occupant's hips or pelvis (see FIG. 16 and FIG. 17). Also, in a vehicle seat having a hanging structure for hanging and supporting a seat cover by engaging a hanging portion of the seat cover with the front hanging groove 71' and the rear hanging groove 72' formed in the seat pad 21', the front insert wire 40' is generally arranged forward of the front hanging groove 71', and the rear insert wire 50' is generally arranged rearward of the rear hanging groove 72' (see FIG. 18). The present inventors have fundamentally reconsidered such conventional general thinking and technical common sense, and as a result of repeated investigations unconstrained by common sense, have come to obtain new findings that lead to the solution of the problems.

[0009] One aspect of the present invention that has been conceived based on such findings is a vehicle seat, A seat including a seat pad, a front insert wire provided in the seat pad, and a rear insert wire provided in the seat pad and rearward of the front insert wire in the front-rear direction of the vehicle seat; A backrest that can be reclined around a pivot point; a hanging structure for hanging and supporting the seat cover by engaging a hanging portion of the seat cover with a front hanging groove and a rear hanging groove formed in the seat pad; Equipped with The front insert wire is bent at a plurality of bent portions and has a front main load receiving portion that protrudes rearward from the surrounding portion, The rear insert wire is bent at a plurality of bent portions and has a rear main load receiving portion that protrudes forward from the surrounding portion, The rear insert wire is disposed at a position where at least the rear main load receiver is forward of the rear hanging groove, The front insert wire is disposed at a position where at least the front main load receiving portion is rearward of the front hanging groove. A vehicle seat.

[0010] In such a vehicle seat, the rear main load receiving portion of the rear insert wire is located within a predetermined range, and the distance between the rear main load receiving portion and the front main load receiving portion of the front insert wire is within a predetermined range, so that the front main load receiving portion and the rear main load receiving portion can effectively support the occupant's pelvis, particularly the area around the ischial bones. This makes it possible to suppress phenomena and sensations such as the occupant's hips dropping, forward slippage, and shearing sensation without making the seat pad harder. In addition to preventing shearing and improving seating comfort, softening the seat pad also makes it possible to achieve an improvement in seating comfort, i.e., feeling.

[0011] In the vehicle seat as described above, at least one of the front main load receiving portion and the rear main load receiving portion may be formed of a straight portion extending in the left-right direction of the vehicle seat.

[0012] In the vehicle seat as described above, at least one of the front main load receiving portion and the rear main load receiving portion may be formed symmetrically about a center line in the left-right direction of the vehicle seat.

[0013] In the vehicle seat as described above, the front insert wire may be inclined downward toward the rear in a side view of the vehicle seat.

[0014] The rear insert wire in the vehicle seat as described above may be arranged so as to be inclined downward from the peripheral portion of the rear main load receiving portion toward the front of the rear main load receiving portion in a side view of the vehicle seat.

[0015] In the vehicle seat as described above, the rear main load receiving portion may be located at the lowest point of the rear insert wire.

[0016] In the vehicle seat as described above, the left-right length of the front main load receiving portion may be longer than the left-right length of the rear main load receiving portion.

[0017] In the vehicle seat as described above, the rear insert wire and the front insert wire may be arranged so that at least a portion of the front main load receiver is located in front of the rear main load receiver.

[0018] In the vehicle seat as described above, the number of bent portions of the front insert wire may be the same as the number of bent portions of the rear insert wire.

[0019] In the vehicle seat as described above, the bent portion of the rear insert wire may have an obtuse angle.

[0020] In the vehicle seat as described above, the front insert wire may be disposed rearward of the front hanging groove, and the rear insert wire may be disposed forward of the rear hanging groove.

[0021] In the vehicle seat as described above, the rear insert wire may be positioned at a position where the distance from the pivot point to the rear main load receiving portion is 170 mm or more, and the front insert wire may be positioned at a position where the distance between the rear main load receiving portion and the front main load receiving portion is 60 mm or more and 70 mm or less. Effect of the Invention

[0022] According to the present invention, it is possible to provide a vehicle seat that is capable of improving the sitting comfort and posture stability by a method other than increasing the hardness of the seat pad. [Brief description of the drawings]

[0023] [Figure 1] 1 is a plan view showing a seat cushion (seat) of a vehicle seat in one embodiment of the present invention with an internal structure seen through; [Diagram 2] 1 is a perspective view showing a seat cushion of a vehicle seat with an internal structure seen through; [Diagram 3] 3 is a diagram showing a cross-sectional structure of a vehicle seat taken along line III-III in FIG. 1 and line III-III in FIG. 2. [Figure 4A] 4 is a diagram showing the relationship between the cross-sectional structure shown in FIG. 3 and the position of the seat bones of an occupant. [Figure 4B] FIG. 4B is an enlarged view of the hanging structure shown in FIG. 3 and FIG. 4A. [Diagram 5] FIG. 13 is a perspective view showing an example of a front insert wire. [Figure 6] FIG. 13 is a perspective view showing an example of a rear insert wire. [Figure 7] FIG. 13 is a plan view showing an example of the arrangement of the front insert wire, rear insert wire, and other wires (right outer wire, left outer wire, right inner wire, left inner wire). [Figure 8] FIG. 8 is a diagram showing the relationship between the front insert wires and the rear insert wires shown in FIG. 7 and the seat bone position of an occupant. [Figure 9]13 is a diagram illustrating the positional relationship between a front straight portion (front main load receiving portion) of a front insert wire and a rear straight portion (rear main load receiving portion) of a rear insert wire. FIG. [Figure 10A] 13A and 13B are diagrams illustrating the bent portions of the front insert wire and the rear insert wire. [Figure 10B] FIG. 11 is another diagram illustrating the bent portions of the front insert wire and the rear insert wire. [Figure 10C] 11A and 11B are diagrams illustrating a front straight portion of a front insert wire and a rear straight portion of a rear insert wire. [Figure 11] 13A and 13B are diagrams illustrating a rear insert wire having an obtuse angle bent portion. [Figure 12] FIG. 13 shows a front insert wire and a rear insert wire with bends added to the ends. [Figure 13] FIG. 1 is a diagram showing an example of a cross-sectional structure when a heater / air conditioning mat is mounted on a vehicle seat. [Figure 14] 13A and 13B are diagrams showing other examples of the front insert wire and the rear insert wire. [Figure 15] 10A and 10B are diagrams illustrating the positional relationship between air vents and front and rear insert wires in a vehicle seat equipped with an air conditioning mat. [Figure 16] FIG. 1 is a plan view showing a seat cushion of a conventional vehicle seat for reference. [Figure 17] 1 is a perspective view showing a seat cushion of a conventional vehicle seat for reference with an internal structure seen through; [Figure 18] 18 is a schematic cross-sectional view taken along line XVIII-XVIII in FIG. 16, showing the structure of a seat cushion of a conventional vehicle seat for reference. [Figure 19] 1A and 1B are diagrams illustrating a reaction force in a seat cushion of a vehicle seat and a posture of the pelvis. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings (see FIG. 1, etc.).

[0025] In the following, the side of the vehicle seat 10 towards which the occupant faces (usually the direction of travel of the vehicle) will be referred to as the front side of the vehicle seat 10 (represented by the symbol F in some figures), and the rear side and left / right directions (or width direction) will be expressed based on this.

[0026] The vehicle seat 10 according to the present invention includes a seat cushion (seat) 20 and a seat back (backrest) 30. The seat back 30 is capable of reclining about a rotation fulcrum 31 (see FIG. 3, etc.). Note that hatching has been omitted in FIG. 3, etc. to clearly show the internal structure, particularly the front insert wire 40 and the rear insert wire 50 described later.

[0027] The seat cushion 20 is provided with a seat pad 21 made of a foam. The vehicle seat 10 of this embodiment is provided with a hanging structure 70 for hanging and supporting the seat cover 22 by engaging the hanging portions 22a, 22b of the seat cover 22 with a front hanging groove 71 and a rear hanging groove 72 formed in the seat pad 21 (see FIG. 3, etc.). Of the three areas of the seat cushion 20 divided by the front hanging groove 71 and the rear hanging groove 72 extending in the left-right direction, the front one is referred to as area 1, the middle one as area 2, and the rear one as area 3 for the sake of convenience in this specification (see FIG. 16).

[0028] An elastically deformable insert wire is provided inside the seat pad 21 to support the load of an occupant. In the vehicle seat 10 of this embodiment, the insert wires include a front insert wire 40, a rear insert wire 50, a right outer wire 61, a left outer wire 62, a right inner wire 63, and a left inner wire 64 (see FIG. 2, etc.). The right outer wire 61 is disposed on the right outer side of the seat pad 21, and the left outer wire 62 is disposed on the left outer side of the seat pad 21, symmetrically about a center line 10C extending in the left-right direction from the front to the rear of the vehicle seat 10 (see FIG. 1, etc.). The right inner wire 63 is disposed inside the right outer wire 61 in area 1 of the seat pad 21, and the left inner wire 64 is disposed inside the left outer wire 62 in area 1 of the seat pad 21, symmetrically about the center line 10C (see FIG. 1, etc.).

[0029] [Front and rear insert wires] The front insert wire 40 is disposed in a state of extending in the left-right direction near the boundary between the area 1 and the area 2, and in the present embodiment, most of the wire is in the area 2 (see FIG. 1, FIG. 3, etc.). The front insert wire 40 is bent at a plurality of bent portions 42, and has a symmetrical shape with two front straight portions 41 extending left and right between the predetermined bent portions 42, one on each side (see FIG. 5, etc.). The front straight portion 41 is shaped to protrude rearward from the surrounding portion of the front straight portion 41 (indicated by reference numeral 48 in FIG. 7), and further, in this embodiment, the surrounding portion 48 of the front straight portion 41 is provided to protrude rearward from the portion supported by the hanging structure 70, and the portion centered on these front straight portions 41 functions as a front main load receiving portion that receives most of the load of the occupant (see FIG. 7, etc.). Note that the portion conveniently called the front straight portion 41 in this embodiment is merely one preferred example of a portion that functions as a front main load receiving portion. For example, even if the shape is not straight, such as being gently curved, it is sufficient as long as it can perform the same function as the front main load-receiving part as described below, and in this respect, it can be said that being straight is a preferred example but is not limited to this.

[0030] The rear insert wire 50 is disposed in a state of extending in the left-right direction near the boundary between the area 2 and the area 3, and in the present embodiment, most of the wire is in the area 2 (see FIG. 1, FIG. 3, etc.). The rear insert wire 50 is bent at a plurality of bent portions 52, and has a symmetrical shape having two rear straight portions 51 extending left and right between the predetermined bent portions 52, one on each side (see FIG. 6). The rear straight portion 51 is shaped to protrude forward from the surrounding portion of the rear straight portion 51 (indicated by reference numeral 58 in FIG. 7), and further, in this embodiment, the surrounding portion 58 of the rear straight portion 51 is provided to protrude forward from the portion supported by the hanging structure 70, and the portion centered on the rear straight portion 51 functions as a rear main load receiving portion that receives most of the load of the occupant (see FIG. 7, etc.). Note that the portion conveniently called the rear straight portion 51 in this embodiment is merely one preferred example of a portion that functions as a rear main load receiving portion. For example, even if the shape is not straight, such as being gently curved, it is sufficient as long as it can perform the same function as the rear main load-receiving part as described below, and in this respect, it can be said that being straight is a preferred example, but is not limited to this.

[0031] The rear insert wire 50 is disposed at a position where the distance L1 from the rotation fulcrum 31 of the seat back 30 to the rear straight portion 51 is a predetermined length (see FIG. 3). L1 is 155 mm or more, and preferably 170 mm or more.

[0032] The front insert wire 40 is disposed at a position where the distance L2 between the rear straight portion 51 and the front straight portion 41 is a predetermined length (see FIG. 3). L2 is preferably 60 mm or more and 70 mm or less.

[0033] In such a vehicle seat 10, the front insert wire 40 may be located rearward of the front hanging groove 71, and the rear insert wire 50 may be located forward of the rear hanging groove 72 (see Figures 3, 4A, etc.).

[0034] In the vehicle seat 10 as described above, the rear straight portion 51 of the rear insert wire 50 and the front straight portion 41 of the front insert wire 40 arranged at a predetermined position or within a predetermined range can effectively support the pelvis H2 of the occupant's buttocks H1, particularly around the ischial bones H3 (see Figs. 4A and 8). This makes it possible to suppress phenomena and sensations such as the occupant's buttocks dropping, forward shifting, and shearing sensation without making the seat pad 21 harder. In this regard, in conventional vehicle seats, it has been common to consider a layout in which the insert wires make linear contact with the vicinity directly below the occupant's buttocks H1 or pelvis H2 as something to be avoided (or, so to speak, taboo) because of too much emphasis on seating comfort, and it has been common to arrange the insert wires avoiding area 2 (i.e., in area 1 or area 3). In this embodiment, from a different viewpoint of such a conventional layout, that is, from the viewpoint of improving the sitting comfort performance and posture stability by a method other than increasing the hardness of the seat pad 21, the separation distance between the rear straight portion 51 and the front straight portion 41, which can be the main load receiving portion, is appropriately narrowed, and as a result, even if the insert wire is configured to be located within the range of the area 2, from another viewpoint, the insert wire is intentionally arranged in the area 2, which was something like a taboo, and by taking advantage of the method that was not adopted according to common sense up to now, it is possible to realize a function that could not be realized with the conventional structure. Also, when comparing a state in which the buttocks are dropped and a state in which the buttocks are not dropped, the former state may have a stronger shear feeling, but in this regard, the rear insert wire 50, especially the rear straight portion 51, prevents the buttocks from dropping, and the balance of pressure in the front-rear direction on the lower body of the occupant is optimized to make the pelvis of the occupant stand upright (Good state) (see FIG. 19). Furthermore, configuring the front insert wire 40 and the rear insert wire 50 as described above helps to make the deflection uniform from the viewpoint of improving seating comfort (which makes it possible to soften the pad).

[0035] Based on the above viewpoints, in this embodiment, the vehicle seat 10 is further configured as follows, which will be described in order (see FIG. 3, etc.).

[0036] [Suspended structure] An example of a hanging structure 70 is shown. The hanging structure 70 of this embodiment includes a hanging member 74 and a hog ring (C-ring) 76 for hanging the hanging portion 22a (22b) of the seat cover 22 on the insert wire (front insert wire 40, rear insert wire 50) (see FIG. 4B). One end of the hanging member 74 is fixed to the hanging portion 22a (22b) of the seat cover 22 by sewing or the like. The other end of the hanging member 74 is provided with a resin portion 74r. The resin portion 74r of the hanging member 74 and the insert wire are ring-fastened with a hog ring 76, so that the seat cover 22 is hung in the front hanging groove 71 (or the rear hanging groove 72) of the seat cushion 20 (see FIG. 4B). Although not specifically shown, the hanging structures for the other insert wires (in this embodiment, the right outer wire 61, the left outer wire 62, the right inner wire 63, and the left inner wire 64) are configured in a similar manner. The positions and number of these hanging structures 70 are not particularly limited. As an example, in the vehicle seat 10 of this embodiment, the hanging structures 70 are provided at the locations indicated by circles (◯) in FIG. 1.

[0037] [Side view of the front and rear insert wires] In the vehicle seat 10 of this embodiment, the front insert wire 40 is provided in a state inclined so as to descend toward the rear in a side view of the vehicle seat 10 (see FIG. 3, etc.). Also, the rear insert wire 50 is provided in a state inclined so as to descend toward the front from the peripheral portion 58 of the rear straight portion 51 toward the rear straight portion 51 in a side view of the vehicle seat 10 (see FIG. 3). In this way, by arranging the front insert wire 40 and the rear insert wire 50 in a shape that is narrowed so that they approach each other toward the bottom in a side view (so to speak, an inverted V shape), when the occupant sits down, it is possible to guide the sinking buttocks H1 to a more appropriate seating point, which is useful for suppressing forward shifting and improving seating comfort. Also, such a front insert wire 40 and a rear insert wire 50 are useful in supporting the occupant seated at a predetermined seating position from the front and rear, and enabling the occupant to maintain a stable posture. The rear straight portion 51 may be located at the lowest point of the rear insert wire 50 (see FIG. 4A, etc.).

[0038] [Left and right length of front and rear straight sections] In the vehicle seat 10 of this embodiment, the length of the front straight portion 41 in the left-right direction is longer than the length of the rear straight portion 51 in the left-right direction (see FIG. 7, particularly the dashed line portion in the figure). Such a front insert wire 40 is disposed in a position from the front of the occupant's pelvis H2 to the vicinity of the base of the thighs, so that when the occupant's buttocks H1 shifts forward or feels shear, or when this is about to occur, the relatively wide front straight portion 41 can provide stable support (see FIG. 8, etc.).

[0039] [Front and rear position of the front and rear straight sections] In the vehicle seat 10 of this embodiment, the front insert wire 40 and the rear insert wire 50 are arranged so that at least a part of the front straight portion 41 is located in front of the rear straight portion 51 (see FIG. 9, etc.). In other words, an area is provided where the front insert wire 40 and the rear insert wire 50 overlap (wrap) in the width direction (see the dashed line portion in FIG. 9), and by securing such an overlapping area as much as possible, it is possible to increase the stability of occupant support. Also, by overlapping the front straight portion 41 and the rear straight portion 51 in this way, which are areas that receive a lot of body pressure from the occupant's pelvis H2, the sitting comfort can be improved.

[0040] [Number of Bends] The number of the bent portions 42 of the front insert wire 40 and the number of the bent portions 52 of the rear insert wire 50 are not particularly limited, but as an example, in this embodiment, these numbers (in other words, the number of bending points) are the same (see FIG. 10A). This allows for an even balance between the left and right sides. In this specification, the bent portion of the insert wire is expressed as a "bent portion" and is shown by a broken circle in FIG. 10A (see FIG. 10A). In addition, the portion shown by a broken oval in FIG. 10B may be interpreted as a "bent portion," or another portion shown by a broken oval in FIG. 10C may be interpreted as a "bent portion" (see FIGS. 10B and 10C). However, regardless of which interpretation is used, in this embodiment, the number of the bent portions 42 of the front insert wire 40 and the number of the bent portions 52 of the rear insert wire 50 are the same.

[0041] [Bending part] The bending angle at the bent portions 42, 52 may be an obtuse angle. In this embodiment, a part of the bent portion 52 of the rear insert wire 50 is an obtuse angle, and the portion extending from the vicinity of the center to the vicinity of the side is gently bent or curved like an S-shape (see FIG. 11, etc.). By forming the rear insert wire 50 in such a shape, it is effective in making the sense of bending uniform and the body pressure balance uniform.

[0042] [Shape of the insert wire near the end] The shapes of the terminal portions 44, 54 (portions close to the right outer wire 61 and the left outer wire 62) of the front insert wire 40 and the rear insert wire 50 are also not particularly limited, and as another example of the shapes illustrated so far, the terminal portions 44, 54 may be bent (see FIG. 12). In such a case, for example, when the front insert wire 40 and the rear insert wire 50 are set in a foaming mold for a pad (not shown), the terminal portions 44, 54 are placed against a backing plate (not shown) or the like protruding inward in the foaming mold, thereby making it possible to control or manage the posture of the front straight portion 41 and the rear straight portion 51 so that they are at the desired position, depth, and angle.

[0043] [If installing a heater / air conditioning mat] When mounting an air-conditioning mat 90 integrated with a heater (not shown) on the vehicle seat 10, the front insert wire 40 and the rear insert wire 50 should be arranged with the following in mind (see FIG. 13). First, if the air-conditioning mat 90 is pinched between the hanging member 74 provided on the seat cover 22 and the insert wire (such as the front insert wire 40), it may lead to a disconnection of the heater, so the front insert wire 40 and the rear insert wire 50 should not be arranged at these positions. In addition, from the viewpoint of improving the seating comfort performance and posture stability described above, the front insert wire 40 and the rear insert wire 50 should not be arranged at the position P3 forward of the front hanging groove 71 or the position P4 rear of the rear hanging groove 72. In addition, when a recess 21s for providing the air-conditioning mat 90 is formed on the upper surface of the seat pad 21, the force supporting a person (the force pushing back a person) is stronger as the thickness of the seat pad 21 increases. On the other hand, since the presence of the air-conditioning mat 90 makes the seat pad 21 thinner, by arranging the insert wire under the air-conditioning mat 90 (in the area where the seat pad 21 is thinner) rather than in the thicker part of the seat pad 21 behind the rear end 91 of the air-conditioning mat 90, the insert wire can compensate for the supporting force of the thickness of the pad of the air-conditioning mat 90.

[0044] [Overall width of insert wire] In accordance with the styling design of the vehicle seat 10, the overall width (length in the left-right direction) W50 of the rear insert wire 50 can be set to be narrower than the overall width W40 of the front insert wire 40 (see FIG. 14).

[0045] [Relationship with air-conditioning mats] Among the air vents 92 of the air conditioning mat 90, those located below the buttocks H1 of the occupant may be arranged inside the dashed rectangular portion in Fig. 15 (see Fig. 15). However, if the insert wire is in the conventional position (see Figs. 16 to 18), the occupant's pelvis H2 may drop relatively significantly (buttocks drop), causing a forward shift or a feeling of shearing, and there is a possibility that the air vents 92 arranged at the intended position may be misaligned with the actual seating position. In this regard, the vehicle seat 10 as described above stabilizes the seating position while improving the seating comfort, thereby enabling the air conditioning function expected of the air vents 92 of the air conditioning mat 90 to be exerted.

[0046] The above-described embodiment is one example of a preferred embodiment of the present invention, but the present invention is not limited to this embodiment and can be modified in various ways without departing from the gist of the present invention. [Industrial Applicability]

[0047] The present invention is suitable for application to vehicle seats. [Explanation of symbols]

[0048] 10...Vehicle seat 10C…Center line of vehicle seat 20…Seat cushion (seat) 21…Seat pad 21s…Concave 22…Seat cover 22a, 22b…Suspended part 30…Seat back 31…Pivot point 40…Front insert wire 41...Front straight section (front main load bearing section) 42…Bend 44…Terminal part 48…Periphery 50…Rear insert wire 51...Rear straight section (rear main load bearing section) 52…Bend 54…Terminal part 58...Periphery 61…Right outer wire 62…Left outer wire 63…Right inner wire 64…Left inner wire 70...Suspended structure 71…Front hanging groove 72…Rear hanging groove 74...Suspension member 74r…Resin part 76…Hog Ring 90…Air conditioning mat 91...rear end 92…Ventilation hole L1: Distance from the pivot fulcrum 31 of the seat back 30 to the rear straight portion (rear main load receiving portion) 51 L2: Distance between the rear straight portion (rear main load receiving portion) 51 and the front straight portion (front main load receiving portion) 41 H1: Passenger's buttocks H2: Pelvis H3…Sit bones P1~P6…Virtual positions of the straight part of the insert wire W40…Total width of front insert wire W50…Total width of rear insert wire

Claims

1. A vehicle seat, A seat including a seat pad, a front insert wire provided in the seat pad, and a rear insert wire provided in the seat pad and rearward of the front insert wire in the front-rear direction of the vehicle seat; A backrest that can be reclined around a pivot point; a hanging structure for hanging and supporting the seat cover by engaging a hanging portion of the seat cover with a front hanging groove and a rear hanging groove formed in the seat pad; Equipped with The front insert wire is bent at a plurality of bent portions and has a front main load receiving portion that protrudes rearward from a peripheral portion thereof, The rear insert wire is bent at a plurality of bent portions and has a rear main load receiving portion that protrudes forward from a surrounding portion, The rear insert wire is disposed at a position where at least the rear main load receiving portion is forward of the rear hanging groove, The front insert wire is disposed at a position where at least the front main load receiving portion is rearward of the front hanging groove. Vehicle seat.

2. 2. The vehicle seat according to claim 1, wherein at least one of the front main load receiving portion and the rear main load receiving portion is configured with a straight portion extending in a left-right direction of the vehicle seat.

3. The vehicle seat according to claim 1 , wherein at least one of the front main load receiving portion and the rear main load receiving portion is formed symmetrically about a center line in the left-right direction of the vehicle seat.

4. The vehicle seat according to claim 1 , wherein the front insert wire is inclined downward toward the rear in a side view of the vehicle seat.

5. 5. The vehicle seat according to claim 4, wherein the rear insert wire is inclined downward from a peripheral portion of the rear main load receiving portion toward the front of the rear main load receiving portion in a side view of the vehicle seat.

6. 6. The vehicle seat according to claim 5, wherein the rear main load receiving portion is located at a lowermost point of the rear insert wire.

7. The vehicle seat according to claim 1 , wherein a length in a left-right direction of the front main load receiving portion is longer than a length in a left-right direction of the rear main load receiving portion.

8. The vehicle seat according to claim 1 , wherein the rear insert wire and the front insert wire are arranged such that at least a portion of the front main load receiver is located in front of the rear main load receiver.

9. The vehicle seat according to claim 1 , wherein the number of the bent portions of the front insert wire is equal to the number of the bent portions of the rear insert wire.

10. 7. The vehicle seat according to claim 1, wherein the bend in the rear insert wire is at an obtuse angle.

11. The front insert wire is disposed rearward of the front hanging groove, The rear insert wire is disposed forward of the rear hanging groove. The vehicle seat according to any one of claims 1 to 6.

12. the rear insert wire is disposed at a position where the distance from the pivot point to the rear main load receiving portion is 170 mm or more; 7. The vehicle seat according to claim 1, wherein the front insert wire is disposed at a position where a separation distance between the rear main load receiving portion and the front main load receiving portion is 60 mm or more and 70 mm or less.

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