Vehicle seat seating system

Abstract

Seating system (1) for vehicle seat comprising: - a vehicle floor (20), - a seat bucket (10) extending in a longitudinal direction (X) between a front zone (12) and a rear zone (14), the front zone (12) and the rear zone (14) extending in a transverse direction (Y) between a first lateral edge (16) and a second lateral edge (18), - a front structure (30) comprising a lower portion (32) and an upper portion (34), the front structure (30) extending in an upward direction (Z) between the lower portion (32) and the upper portion (34), the lower portion (32) is connected to the vehicle floor (20) and the upper portion (34) supports the seat bucket (10) in the front zone (12), the rear zone (14) of the seat bucket (10) rests on the vehicle floor (20). Figure for the abbreviation: Figure 2

Description

Title of the invention: Seating system for vehicle seat Scope of the invention

[0001] This disclosure relates to a seating system for a vehicle seat. The vehicle seat is preferably a rear seat, in particular a second-row or third-row seat, but is not limited to this use. The seat may be an individual seat, a portion of a bench seat, or a complete bench seat. In other words, the seat may, in particular, accommodate one, two, or three people, but is not limited to this. State of the art

[0002] A seating system comprising a vehicle floor and a seat bucket is already known, the seat bucket extending in a longitudinal direction between a front zone and a rear zone, the front zone and the rear zone extending in a transverse direction between a first lateral edge and a second lateral edge, said transverse direction being perpendicular to the longitudinal direction.

[0003] The present disclosure aims to propose a robust seating system with reduced cost and mass. Description of the invention

[0004] According to the disclosure, the seating system further comprises a front structure, the front structure comprises a lower portion and an upper portion, the front structure extending in an upward direction between the lower portion and the upper portion, the upward direction is perpendicular to the longitudinal and transverse directions, the lower portion is connected to the vehicle floor and the upper portion supports the seat in the front area, and the rear area of ​​the seat rests on the vehicle floor.

[0005] Thus, the seating system does not require any additional elements on the vehicle floor, which simplifies the seating system and consequently reduces its mass and cost.

[0006] Advantageously, the seating system further comprises padding and a cover, the padding resting on the seat bucket and the cover covering the padding.

[0007] Thus, the seat bucket forms a kind of suspension supporting the padding and the covering offers a beautiful appearance and a pleasant contact with the user.

[0008] According to another feature in accordance with the disclosure, the seating system preferably also has the following features:

[0009] - the vehicle floor comprises a lower surface, an upper surface and a rear surface,

[0010] - the lower surface extends substantially perpendicularly to the direction elevation, in relation to an intermediate zone of the seat bucket, said intermediate zone being interposed between the front zone and the rear zone along the longitudinal direction,

[0011] - the upper surface extends perpendicularly to the direction of elevation, the area The rear of the seat rests on the upper surface.

[0012] - the rear surface extends substantially perpendicularly to the direction The longitudinal and rear surfaces connect the lower and upper surfaces.

[0013] Thus, the seat bucket can be arranged substantially horizontally and sufficiently raised in relation to the lower surface intended to receive the feet of a passenger in order to comfortably accommodate the passenger.

[0014] According to another feature in accordance with the disclosure, the seat bucket is preferably made of plastic material.

[0015] Thus, the mass of the seating system is easily contained and the seat bucket can deform, in order to form a suspension improving user comfort.

[0016] According to another feature in accordance with the disclosure, the front structure is preferably made of metallic material.

[0017] Thus, the seating system can be robust while having a front structure of reduced dimensions, in other words presenting a small footprint.

[0018] According to another feature in accordance with this disclosure, the front structure comprises one of a cross member, a tube supported by feet, or studs.

[0019] Thus, the front structure effectively supports the front area of ​​the seat bucket.

[0020] In various embodiments of the seating system according to the disclosure, one and / or the other of the following provisions may also be used:

[0021] - the front structure includes a cross member, the cross member extends mainly along the transverse direction, the cross member has a front wall, a top wall and a rear wall, the front wall has a front lower edge and a front upper edge, the front lower edge is rigidly fixed to the vehicle floor, the rear wall has a rear upper edge and a rear lower edge, the rear lower edge is rigidly fixed to the vehicle floor, and the top wall connects the front upper edge to the rear upper edge;

[0022] - the front wall and / or the rear wall has openings;

[0023] - the front structure comprises a tube and feet supporting the tube, the tube extends mainly following the transverse direction, each foot comprises a base portion and a support portion, the base portion is rigidly fixed to the vehicle floor and the support portion is connected to the tube;

[0024] - the tube has an axis of revolution extending along the transverse direction and has an annular shape in section, perpendicular to the transverse direction;

[0025] - the front structure comprises studs, the studs are spaced apart from each other following the transverse direction, each block is rigidly fixed to the vehicle floor by the lower portion and supports the front area of ​​the seat bucket by the upper portion;

[0026] each block comprises two arms forming a V, the arms being connected to each other at the upper portion and the arms being separated from each other in the transverse direction at the lower portion;

[0027] each plot has a truncated pyramid shape.

[0028] In accordance with this disclosure, the seating system further exhibits at least one of the following characteristics:

[0029] the rear area of ​​the seat bucket is not fixed to the vehicle floor in the longitudinal direction;

[0030] the rear area of ​​the seat bucket is not fixed to the vehicle floor in the transverse direction;

[0031] the rear area of ​​the seat bucket is not fixed to the vehicle floor in the direction of elevation;

[0032] the seat bucket is fixed to the vehicle floor only by the front area.

[0033] Thus, the implementation of the seating system is simplified.

[0034] In various embodiments of the seating system according to the disclosure, one or both of the following provisions may also be used:

[0035] - the seating system further comprises a support, the seat bucket rests on the support, the support comprises a first spar and a second spar, the first spar and the second spar extend along the longitudinal direction between the front zone and the rear zone, the first spar and the second spar are separated from each other along the transverse direction;

[0036] - the first longeron and the second longeron each rest on the floor of vehicle (at the rear area);

[0037] - the upper portion of the front structure supports the seat in the frontal area via the support;

[0038] - the support further comprises a connecting bar extending along the direction transversely, the connecting bar links the first side member to the second side member, and the upper portion of the front structure supports the seat in the front area via the connecting bar;

[0039] - the support comprises a tubular element, a first support leg and a second support leg, first support leg and second support leg are each supported on the vehicle floor, the tubular element comprises a first tubular portion, the first support leg is fixed to the first tubular portion, the first longitudinal member comprises the first tubular portion and the first support leg, the tubular element comprises a second tubular portion, the second support leg is fixed to the second tubular portion, the second longitudinal member comprises the second tubular portion and the second support leg;

[0040] - the tubular element comprises a third tubular portion, the third portion tubular connects the first tubular portion and the second tubular portion, and the tubular element has a U shape perpendicular to the direction of elevation.

[0041] - the first lateral edge, the front area, the second lateral edge and the rear area form the periphery of the seat and the support extends close to the periphery of the seat;

[0042] - the seat bucket is one piece (monobloc). Brief description of the figures

[0043] Other features and advantages of this disclosure will become apparent in the following detailed description, with reference to the accompanying drawings in which:

[0044] [Fig-1] represents a perspective seating system comprising a structure frontal according to a first example of implementation,

[0045] [Fig.2] represents the seating system according to the first embodiment in fragmented perspective,

[0046] [Fig.3] represents the seating system according to the first embodiment, in section along the line marked III-III in [Fig.1],

[0047] [Fig.4] represents a frontal structure in perspective according to a second example of realization,

[0048] [Fig.5] represents a frontal structure in perspective according to a third example of realization,

[0049] [Fig.6] represents a frontal structure in perspective according to a fourth example of realization. Detailed description

[0050] Figures 1 to 3 illustrate a seating system comprising essentially a seat bucket 10, a vehicle floor 20 and a front structure 30.

[0051] The seat 10 extends along a longitudinal direction X between a front zone 12 and a rear zone 14. The seat 10 further comprises an intermediate zone 15, disposed between the front zone 12 and the rear zone 14 along the longitudinal direction X. The front zone 12, the intermediate zone 15, and the rear zone 14 extend along a transverse direction Y between a first lateral edge 16 and a second lateral edge 18. The transverse direction Y is perpendicular to the longitudinal direction X. The first lateral edge 16, the front area 12, the second lateral edge 18 and the rear area 14 form the periphery of the seat bucket 10.

[0052] In the illustrated embodiments, the seating system 10 is intended to provide a rear bench seat capable of accommodating at least two passengers, preferably three. The seating system 10 is also suitable for providing seats intended to accommodate a different number of passengers, in particular for providing a single seat. For this purpose, the dimensions of the seating system, in particular the seat bucket 10 and the front structure 30 along the transverse direction Y, can be adapted.

[0053] The seat 10 is preferably made of plastic material. In addition, the seat 10 is preferably one piece, in other words the seat 10 is formed from a single piece (monobloc), in particular the seat 10 is obtained by a single molding operation.

[0054] The seat bucket 10 preferably has recesses in the intermediate zone 15, in order to increase the flexibility of the intermediate zone 15 relative to the front zone 12 and the rear zone 14.

[0055] The front structure 30 comprises a lower portion 32 and an upper portion 34. The front structure 30 extends along an upward direction Z between the lower portion 32 and the upper portion 34. The upward direction Z is perpendicular to the longitudinal direction X and the transverse direction Y. The front structure 30 is preferably made of metallic material. The lower portion 32 is connected to the vehicle floor 20; preferably, the lower portion 32 is fixed, for example, by welding, bolting, clipping, or similar means, to the vehicle floor 20. The upper portion 34 supports the seat 10 in the front area 12.

[0056] The vehicle floor 20 essentially comprises a lower surface 22, an upper surface 26 and a rear surface 24. The lower surface 22 extends substantially perpendicularly to the elevation direction Z, opposite the intermediate zone 15 of the seat 10. The upper surface 26 extends perpendicularly to the elevation direction Z. The rear surface 24 extends substantially perpendicularly to the longitudinal direction X and the rear surface 24 connects to the lower surface 22.

[0057] The lower portion 32 of the front structure 30 could rest on (and be fixed directly to) the lower surface 22 of the vehicle floor 20. However, in the embodiment illustrated in Figures 1 to 3, the vehicle floor 20 further includes a rib 28 projecting from the lower surface 22, so that the lower portion 32 of the front structure 30 rests on (and is fixed directly to) the rib 28 of the vehicle floor 20.

[0058] The rear area 14 of the seat 10 has a support surface 13 extending opposite and parallel to the upper surface 26 and parallel to the upper surface 26. The rear area 14 of the seat 10 thus rests on the upper surface 26 of the vehicle floor 20.

[0059] The rear area 14 of the seat 10 is preferably not fixed (directly) to the upper surface 26 of the vehicle floor 20. The rear area 14 of the seat 10 is then not held directly to the vehicle floor 20 either in the longitudinal direction X or in the transverse direction Y. Furthermore, in the elevation direction Z, the rear area 14 of the seat 10 is then not held (fixed) directly to the vehicle floor 20; the rear area 14 of the seat 10 simply rests on the upper surface 26 of the vehicle floor 20, which limits the movement of the rear area 14 of the seat 10 relative to the upper surface 26 of the vehicle floor 20 to only one direction (downwards). The seat bucket 10 is fixed to the vehicle floor 20 only by the frontal area 12, as described below.Alternatively, the rear area 14 of the seat bucket 10 could be held in one or more directions of the longitudinal X, transverse Y and elevation Z directions, for example by means of screws that can slide in a slot or of well-known clamping systems.

[0060] The upper portion 34 of the front structure 30 can be directly connected to the seat 10. However, the seating system 10 illustrated in Figures 1 to 3 further includes a support 70. The seat 10 is held on the support 70 and the support 70 is fixed to the upper portion 34 of the front structure 30, so that the front area 12 of the seat 10 is held on the front structure 30 by means of the support 70.

[0061] The support 70 comprises a tubular element 80, a first support leg 73 and a second support leg 77.

[0062] The tubular element 80 comprises a first tubular portion 82, a second tubular portion 86 and a third tubular portion 84. The first tubular portion 82 and the second tubular portion 84 are straight and extend along the longitudinal direction X. The third tubular portion 84 is straight and connects the first tubular portion 82 and the second tubular portion 86. The tubular element 80 thus has a U-shape perpendicular to the elevation direction Z.

[0063] The first tubular portion 82 extends along the first lateral edge 16. The second tubular portion 86 extends along the second lateral edge 18. The third tubular portion 84 extends into the front area 12. The support 70 therefore extends close to the periphery of the seat 10. It should be noted, however, that the support 70 does not extend along the transverse direction Y along the rear area 14.

[0064] The first tubular portion 82 has a free end to which the first support lug 73 is attached. Consequently, the first tubular portion 82 has, along the longitudinal direction X, an end attached to the first support lug 73 and continues at an opposite end as the third tubular portion 84. The second tubular portion 86 has a free end to which the second support lug 77 is attached. Consequently, the second tubular portion 86 has, along the longitudinal direction X, an end attached to the second support lug 77 and continues at an opposite end as the third tubular portion 84.

[0065] The first tubular section 82 and the first support lug 73 form a first longitudinal member 72. The second tubular section 86 and the second support lug 77 form a second longitudinal member 76. The first support lug 73 and the second support lug 77 are each supported on the upper surface 26 of the vehicle floor 20.

[0066] The first longeron 72 and the second longeron 76 extend along the longitudinal direction X between the front zone 12 and the rear zone 14. The first longeron 72 and the second longeron 76 are separated from each other along the transverse direction Y.

[0067] The third portion 84 of the tubular element 80 forms a connecting bar 74 linking the first longeron 72 to the second longeron 76.

[0068] The seat bucket 10 rests on the support 70 and the upper portion 34 of the front structure 30 supports the connecting bar 74, so that the upper portion 34 of the front structure 30 supports the seat bucket 10 in the front area 12 via the support 70 and more particularly via the connecting bar 74.

[0069] The upper surface 26 of the vehicle floor 20 supports the seat 10 both via the support 70 and directly via the bearing surface of the rear area 14.

[0070] The seat 10 preferably includes a ribbed reinforcement facing the vehicle floor 20 near the first lateral edge 16, the front area 12 and the second lateral edge 18. The ribbed reinforcement has a groove in which the tubular element 80 is received. The seat 10 further includes elastically deformable retaining elements to hold the seat 10 relative to the support 70 and more specifically to the tubular element 80, but other similar means could also be suitable.

[0071] As illustrated in [Fig.3], the seating system 1 further preferably comprises a padding 2 and a cover 4. The padding 2 rests on the seat bucket 10. The cover 4 covers the padding 2 and maintains the padding 2 in relation to the seat bucket 10.

[0072] In the embodiment illustrated in Figures 1 to 3, the front structure 30 comprises studs 60. The studs 60 are spaced from each other along the transverse direction Y. In the embodiment shown, the front structure 30 comprises two studs 60. A different number of studs could be provided, preferably between 2 and 4 studs 60. Each stud 60 is fixed to the vehicle floor 20 by the lower portion 32 and supports the seat 10 (via the connecting bar 74); more specifically, the front area 12 of the seat 10 is supported by the upper portion 34.

[0073] Each block 60 comprises a first arm 62 and a second arm 64 forming a V. The first arm 62 and the second arm 64 are connected to each other at the upper portion 34. The first arm 62 and the second arm 64 are separated from each other along the transverse direction Y at the lower portion 32.

[0074] The seating system 1 further comprises a first lateral support 36 and a second lateral support 38. The first lateral support 36 and the second lateral support 38 extend along the elevation direction Z. The first lateral support 36 and the second lateral support 38 are fixed to the vehicle floor 20. The first lateral support 36 supports the first side member 72, more precisely the first portion 82 of the tubular element 80. The second lateral support 38 supports the second side member 76, more precisely the second portion 86 of the tubular element 70.

[0075] The second embodiment illustrated in [Fig. 4] differs from the first embodiment illustrated in Figures 1 to 3 in that the front structure 30 comprises supports 90, each in the shape of a truncated pyramid, preferably with a square base, instead of supports 60. The supports 90 extend from the upper portion 34 to the lower portion 32, which forms the base of the pyramid. Two supports 90 are shown for the front structure 30, but the front structure 30 may comprise a different number of supports 90, preferably between two and six. Furthermore, the first lateral support 36 and the second lateral support 38 are preferably identical to the supports 90 of the front structure.

[0076] The third embodiment illustrated in [Fig.5] differs from the first embodiment illustrated in figures 1 to 3 in that the front structure 30 includes a cross member 40 instead of studs 60.

[0077] The cross member 40 extends mainly along the transverse direction Y. The cross member 40 has a front wall 42, an upper wall 44, and a rear wall 46. The front wall 42 has a front lower edge 41 and a front upper edge 43. The front lower edge 41 is rigidly fixed to the vehicle floor 20. The rear wall 46 has a rear upper edge 45 and a rear lower edge 47. The edge The lower rear 47 is rigidly fixed to the vehicle floor 20. The upper wall 44 connects the upper front edge 43 to the upper rear edge 45.

[0078] In the third embodiment illustrated in [Fig.5], the front wall 42 and the rear wall 46 each have openings 48. Alternatively, the openings could be present only in one of the front wall 42 and rear wall 46, or even neither in the front wall 42 nor in the rear wall 46.

[0079] The third embodiment preferably does not differ from the first embodiment with respect to the first lateral support 36 and the second lateral support 38.

[0080] The fourth embodiment illustrated in [Fig. 6] differs from the first embodiment illustrated in Figures 1 to 3 in that the front structure 30 comprises a tube 50 and legs 52 supporting the tube 50. The tube 50 extends mainly along the transverse direction Y. Each leg 52 comprises a base portion 54 and a support portion 56. The base portion 54 is fixed to the vehicle floor 20 and the support portion 56 is connected to the tube 50. In the fourth embodiment illustrated in [Fig. 6], the front structure 30 comprises two legs 52. However, another number of legs could be provided, preferably between two and four.

[0081] The tube 50 has an axis of revolution 58 extending along the transverse direction Y and has an annular shape in section, perpendicular to the transverse direction Y.

Claims

Demands

1. A seating system (1) for a vehicle seat comprising: - a vehicle floor (20), - a seat bucket (10) extending along a longitudinal direction (X) between a front zone (12) and a rear zone (14), the front zone (12) and the rear zone (14) extending along a transverse direction (Y) between a first lateral edge (16) and a second lateral edge (18), said transverse direction (Y) being perpendicular to the longitudinal direction (X), - a front structure (30) comprising a lower portion (32) and an upper portion (34), the front structure (30) extending along an elevation direction (Z) between the lower portion (32) and the upper portion (34), the elevation direction (Z) being perpendicular to the longitudinal direction (X) and to the transverse direction (Y),The lower portion (32) is connected to the vehicle floor (20) and the upper portion (34) supports the seat (10) in the front area (12), in which the rear area (14) of the seat (10) rests on the vehicle floor (20).

2. Seating system according to claim 1 in which the seat bucket (10) is made of plastic material.

3. Seating system according to any one of the preceding claims wherein the front structure (30) is made of metallic material.

4. Seating system according to any one of the preceding claims in which the front structure (30) comprises a cross member (40), a tube (50) supported by feet (52) or pedestals (60).

5. Seating system according to any one of the preceding claims wherein the rear area (14) of the seat bucket (10) is not fixed to the vehicle floor (20) along the longitudinal direction (X).

6. Seating system according to any one of the preceding claims wherein: - the seating system (10) further comprises a support (70), - the seat bucket (10) rests on the support (70), - the support (70) comprises a first longitudinal member (72) and a second longitudinal member (76), - the first longeron (72) and the second longeron (76) extend along the longitudinal direction (X) between the front zone (12) and the rear zone (14), - the first longeron (72) and the second longeron (76) are separated from each other along the transverse direction (Y).

7. Seating system according to the preceding claim in which the first side member (72) and the second side member (76) each rest on the vehicle floor (20).

8. Seating system according to claim 6 or 7 wherein the upper portion (34) of the front structure (30) supports the seat bucket (10) in the front area (12) via the support (70).

9. Seating system according to the preceding claim in which: - the support (70) further comprises a connecting bar (74) extending along the transverse direction (Y), the connecting bar (74) connects the first side member (72) to the second side member (76), and - the upper portion (34) of the front structure (30) supports the seat bucket (10) in the front area (12) via the connecting bar (74).

10. Seating system according to any one of the preceding claims wherein: - the vehicle floor (20) comprises a lower surface (22), an upper surface (26) and a rear surface (24), - the lower surface (22) extends substantially perpendicularly to the elevation direction (Z), opposite an intermediate zone (15) of the seat bucket (10), said intermediate zone (15) being interposed between the front zone (12) and the rear zone (14) along the longitudinal direction (X), - the upper surface (26) extends perpendicularly to the elevation direction (Z), the rear zone (14) of the seat bucket (10) rests on the upper surface (26), - the rear surface (24) extends substantially perpendicularly to the longitudinal direction (X) and the rear surface (24) connects the lower surface (22) and the upper surface (26).

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