WO2018042093A1

WO2018042093A1 - Vehicle seat cushioned by soft support

Info

Publication number: WO2018042093A1
Application number: PCT/FR2017/052056
Authority: WO
Inventors: Laurent Bauvineau; Zubair Elkadi; Jeremy CHEVALIER; Frederic Bertin; Patrick Proust; Christophe Broquet
Original assignee: Psa Automobiles Sa
Priority date: 2016-08-30
Filing date: 2017-07-25
Publication date: 2018-03-08
Also published as: EP3507134A1; FR3055259A1; FR3055259B1

Abstract

A seat (2) comprising a framework (4), a shock-absorbing cushioning device (3) arranged on the framework and a seating-part bucket (5) arranged on the cushioning device, the cushioning device comprising: a first body (27) defining: • a first horizontal lower face extending substantially over the entire length of the first body and being entirely in contact with the framework, • a first horizontal upper face extending substantially over the entire length of the first body and being entirely in contact with the seating-part bucket; a second body (28) defining: • a second horizontal lower face extending substantially over the entire length of the second body and being entirely in contact with the framework, • a second horizontal upper face extending substantially over the entire length of the second body and being entirely in contact with the seating-part bucket.

Description

VEHICLE SEAT DAMPED BY FLEXIBLE SUPPORT

The invention relates to the field of vehicles, including automobiles. It relates, more specifically, the suspension and height adjustment of a vehicle seat.

[0002] The comfort of the occupants of a vehicle depends, among other things, on the state of the road, the suspensions and the seats of the vehicle.

The lack of comfort increases the irritation and fatigue of occupants increasing the risk of lack of attention of the driver and therefore the insecurity of the occupants. Lack of comfort also increases the health risks of the occupants through prolonged poor postural constraints that can cause lower back problems.

[0004] The vibrations transmitted by the vehicle to the occupants contribute to the discomfort of the occupants.

US 2015/0203010 discloses a cushioning device of a seat comprising a suspension panel provided with suspension elements adapted to be in contact with a frame and a cushion of a seat.

Such a device effectively allows damping, at the cushion, vibration or shock exerted on the frame. However, the damping is achieved only at specific points defined by the suspension elements. In addition, the assembly of such a seat is complex and strike the assembly time.

A first objective is to provide a seat comprising a damping device capable of damping vibrations or shocks.

A second objective is to provide a seat comprising a simple damping device and whose assembly is fast.

A third objective is to provide a vehicle comprising a seat meeting the above objectives.

For this purpose, it is proposed, in the first place, a seat comprising a frame, a damping device and a seat bucket, the frame comprising a first lateral portion and a second lateral portion, the device of damping being arranged on the armature and resting on the first lateral part and on the second lateral part of the armature, the seat tub comprising a first lateral portion and a second lateral portion, the seat tub being disposed on the damping device and resting through the first lateral portion and the second lateral portion of the seat tub, the damping device comprising:

a first body defining:

A first lower horizontal face, extending substantially over the entire length of the first body, the first lower horizontal face being entirely in contact with the first lateral part of the armature,

A first upper horizontal face, extending substantially over the entire length of the first body, the first upper horizontal face being entirely in contact with the first lateral portion of the seat tub; a second body defining:

A second lower horizontal face, extending substantially over the entire length of the second body, the second lower horizontal face being entirely in contact with the second lateral part of the armature,

A second upper horizontal face, extending substantially over the entire length of the second body, the second upper horizontal face being entirely in contact with the second lateral portion of the seat tub.

Such a seat thus isolates the seat tub vibrations or shocks exerted on the frame.

Such a damping device allows a simple and quick assembly of the seat.

[0013] Various additional features may be provided, alone or in combination:

the first body of the damping device has a substantially U-shaped cross-section defining:

A first lower inner face and a first lower outer face, integral with the first lower horizontal face and extending on either side thereof;

A first upper inner face and a first upper outer face, integral with the first upper horizontal face and extending on either side thereof: the second body of the damping device has a substantially U-shaped cross-section defining:

A second lower inner face and a second lower outer face, integral with the second lower horizontal face and extending on either side thereof;

A second upper inner face and a second upper outer face, integral with the second upper horizontal face and extending on either side thereof;

the first side portion of the frame has a substantially U-shaped cross section, defining a first upper side, a first inner side and a first outer side, the first inner side and the first outer side being integral with the first upper side and extending on either side of the latter, the first upper side being in contact with the first lower horizontal face of the first body of the damping device, the first inner side being in contact with the first lower inner face of the first body and the first outer side being in contact with the first outer lower surface of the first body;

the second lateral portion of the frame has a substantially U-shaped cross-section, defining a second upper side, a second inner side and a second outer side, the second inner side and the second outer side being integral with the second upper side and extending on either side of the latter, the second upper side being in contact with the second lower horizontal face of the second body of the damping device, the second inner side being in contact with the second lower inner face of the second body and the second outer side being in contact with the second outer lower face of the second body;

the first lateral portion of the seat tub has a substantially U-shaped cross section, defining a first upper pan, a first inner pan and a first outer pan, the first inner pan and the first outer pan being secured of the first upper pan and extending on either side thereof, the first upper pan being in contact with the first upper horizontal face of the first body of the damping device, the first inner pan being in contact with the first first inner upper surface of the first body and the first outer skin being in contact with the first outer upper surface of the first body;

the second lateral portion of the seat tub has a substantially U-shaped cross section, defining a second upper pan, a second inner pan and a second outer pan, the second inner pan and the second outer pan being integral with the second upper pan; and extending on either side thereof, the second upper flange being in contact with the second upper horizontal face of the second body of the damping device, the second inner flange being in contact with the second upper inner face the second body and the second outer panel being in contact with the second outer upper surface of the second body;

the frame comprises a front rod and the seat bucket comprises a front support adapted to coincide with the front stem of the frame; the frame comprises a rear rod and the seat bucket comprises a rear support adapted to coincide with the rear rod of the frame.

It is proposed, secondly, a vehicle, including automotive, comprising a seat as shown above.

Other features and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the accompanying drawings in which:

Figure 1 is a schematic perspective view of a vehicle comprising a seat provided with a damping device;

Figure 2 is an exploded schematic view of the seat according to a first embodiment;

Figure 3 is an exploded schematic sectional view along a plane II of Figure 2, the seat;

- Figure 4 is a schematic sectional view along the plane II of Figure 2, the seat; Figure 5 is an exploded schematic view of the seat according to a second embodiment.

In Figure 1 is shown a vehicle 1 comprising a seat 2 provided with a device 3 damping.

As shown in Figure 2, the seat 2 further comprises a frame 4, on which are arranged the device 3 damping and a bucket 5 seat, itself arranged on the device 3 damping.

In the following description, the armature 4, the damping device 3 and the seat tub 5 are described assembled.

The frame 4 comprises a seat 6 and a backrest 7 secured to the seat 6. The seat 6 comprises a first lateral portion 8 and a second lateral portion 9.

According to the embodiments shown, the first lateral portion 8 and the second lateral portion 9 are directly integral with the backrest 7 of the frame 4. The seat 6 of the frame 4 comprises a rod 10 and a forward rod 11 back, connecting the first lateral part and the second lateral part.

According to the illustrated embodiments, the first lateral portion 8 and the second lateral portion 9 have a cross section substantially U-shaped.

The cross section of the first lateral portion 8 of the seat 6 of the frame 4 defines a first upper side 12, a first inner side 13 and a first outer side 14.

The first inner side 13 and the first outer side 14 are secured to the first upper side 12.

The first inner side 13 and the first outer side 14 extend on either side of the first upper side 12.

According to the embodiments shown, the first inner side 13 and the first outer side 14 are substantially perpendicular to the first upper side 12.

The cross section of the second lateral portion 9 of the seat 6 of the frame 4 defines a second upper side 15, a second inner side 16 and a second outer side 17.

The second inner side 16 and the second outer side 17 are integral with the second upper side 15. The second inner side 16 and the second outer side 17 extend on either side of the second upper side 15.

According to the embodiments shown, the second inner side 16 and the second outer side 17 are substantially perpendicular to the second upper side 15.

The first upper side 12, the first inner side 13 and the first outer side 14 of the first lateral part 8 and the second upper side 15, the second inner side 16 and the second outer side 17 of the second part 9 side of the seat 6 are shaped sheets, that is to say that one of their dimensions is much smaller than the other two.

According to the illustrated embodiments, the first lateral portion 8 and the second lateral portion 9 of the seat 6 of the frame 4 are substantially symmetrical.

The bucket 5 seat comprises a tray 18, a first portion 19 and a lateral portion 20 side. The first lateral portion 19 and the second lateral portion 20 are disposed on either side of the tray 18.

According to the illustrated embodiments, the first lateral portion 19 and the second lateral portion 20 have a substantially U-shaped cross section.

The cross section of the first lateral portion 19 of the seat tub 5 defines a first upper pan 21, a first pan 22 inside and a first pan 23 outside.

The first inner pan 22 and the first outer pan 23 are integral with the first upper pan 21.

The first inner pan 22 and the first outer pan 23 extend on either side of the first upper pan 21.

According to the embodiments shown, the first upper pan 21 and the first outer pan 23 are substantially perpendicular to each other. The first inner pan 22 is integral with the tray 18.

The cross section of the second lateral portion of the seat tub 5 defines a second upper pan 24, a second inner pan 25 and a second outer pan 26.

The second inner pan 25 and the second outer pan 26 are integral with the second pan 24 upper. The second inner pan 25 and the second outer pan 26 extend on either side of the second upper pan 24.

According to the embodiments shown, the second upper pan 24 and the second outer pan 26 are substantially perpendicular to each other. The second inner pan 25 is secured to the tray 18.

According to an embodiment not shown, the first inner portion 22 of the first lateral portion 19 and the second inner portion of the second lateral portion 20 partially define the container 18.

The first upper pan 21, the first inner pan 22 and the first outer pan 23 of the first lateral portion 19 and the second upper pan 24, the second inner pan 25 and the second outer pan 26 of the second portion 20 Lateral of the seat bucket 5 are shaped sheets, that is to say that one of their dimensions is much smaller than the other two.

According to the illustrated embodiments, the first lateral portion 19 and the second lateral portion 20 of the seat tub 6 are substantially symmetrical.

The damping device 3 comprises a first body 27 and a second body 28.

According to the illustrated embodiments, the first body 27 and the second body 28 have a substantially U-shaped cross section.

The cross section of the first body 27 of the damping device 3 defines a first lower horizontal face 29, a lower lower first face 30 and a lower lower first face 31.

The first lower inner face 30 and the first lower outer face 31 are integral with the first lower horizontal face 29.

The first lower inner face 30 and the first lower outer face 31 extend on either side of the first lower horizontal face 29.

The first lower horizontal face 29 extends substantially over the entire length of the first body 27 of the damping device 3. According to the embodiments shown, the first lower inner face 30 and the lower lower first face 31 are substantially perpendicular to the first lower horizontal face 29.

The cross section of the first body 27 of the damping device 3 also defines a first upper horizontal face 32, a first upper inner face 33 and a first upper outer face 34.

The first upper inner face 33 and the first upper outer face 34 are integral with the first upper horizontal face 32.

The first upper inner face 33 and the first upper outer face 34 extend on either side of the first upper horizontal face 32.

The first upper horizontal face 32 extends substantially over the entire length of the first body 27 of the damping device 3.

According to the embodiments shown, the first upper horizontal face 32 and the first upper outer face 34 are substantially perpendicular to each other. The first upper inner face 33 is substantially parallel to the first inner face 22 of the first lateral portion 19 of the seat tub 5.

According to the embodiments shown, the first lower horizontal face 29 and the first upper horizontal face 32 are substantially parallel. The first lower outer face 31 and the first outer upper face 34 are substantially parallel.

The cross-section of the second body 28 of the damping device 3 defines a second lower horizontal face 35, a second lower inner face 36 and a lower second outer face 37. As shown in FIG.

The second lower inner face 36 and the second lower outer face 37 are integral with the second lower horizontal face 35. The second lower inner face 36 and the second lower outer face 37 extend on either side of the first lower horizontal face 29. The second lower horizontal face 35 extends substantially over the entire length of the second body 28 of the damping device 3.

According to the embodiments shown, the first lower inner face 30 and the lower lower first face 31 are substantially perpendicular to the first lower horizontal face 29.

The cross section of the second body 28 of the damping device 3 also defines a second upper horizontal face 38, a second upper inner face 39 and a second upper outer face 40. The second upper inner face 39 and the second upper outer face 40 are secured to the second upper horizontal face 38. The second upper inner face 39 and the second upper outer face 40 extend on either side of the second upper horizontal face 38.

The second upper horizontal face 38 extends substantially over the entire length of the second body 28 of the damping device 3.

According to the embodiments shown, the second upper horizontal face 38 and the second upper outer face 40 are substantially perpendicular to each other. The second upper inner face 39 is substantially parallel to the second inner face 25 of the second lateral portion of the seat tub 5.

According to the illustrated embodiments, the second lower horizontal face 35 and the second upper horizontal face 38 are substantially parallel. The second lower outer face 37 and the second outer upper face 40 are substantially parallel.

According to the illustrated embodiments, the first body 27 and the second body 28 of the damping device 3 are substantially symmetrical.

According to an embodiment not shown, the damping device 3 further comprises a third body connecting the first body 27 and the second body 28.

As illustrated in Figures 3 and 4, after mounting the damping device 3 and the seat bucket 5 on the frame 4 of the seat 2, the damping device 3 is disposed between the frame 4 and the seat tub 5.

The first lower horizontal face 29 of the first body 27 and the second lower horizontal face 35 of the second body 28 of the damping device 3 are respectively in contact with the first upper side 12 of the first lateral part 8 and the second side 15 of the second lateral part of the armature 4.

The first upper horizontal face 32 of the first body 27 and the second upper horizontal face 38 of the second body 28 of the damping device 3 are respectively in contact with the first upper pan 21 of the first lateral portion 19 and the second pan 21. 24 top of the second lateral portion of the seat pan.

According to the embodiments shown, the first lower inner face 30 of the first body 27 and the second lower inner face 36 of the second body 28 of the damping device 3 are respectively in contact with the first inner side 13 of the first lateral part 8 and the second inner side 16 of the second lateral part 9 of the frame 4.

The first lower outer face 31 of the first body 27 and the second lower outer face 37 of the second body 28 of the damping device 3 are respectively in contact with the first outer side 14 of the first lateral portion 8 and the second side 17 exterior of the second lateral part of the armature.

According to the illustrated embodiments, the first upper inner face 33 of the first body 27 and the second upper inner face 39 of the second body 28 of the damping device 3 are respectively in contact with the first inner pan 22 of the first side portion 19 and the second inner portion 25 of the second side portion of the seat tub 5.

The first outer upper surface 34 of the first body 27 and the second outer upper surface 40 of the second body 28 of the damping device 3 are respectively in contact with the first outer panel 23 of the first side portion 19 and the second panel 19. 25 outside the second lateral portion of the seat pan. The first body 27 and the second body 28 of the damping device 3 are made of a material capable of damping vibrations or shocks.

According to a preferred embodiment, the first body 27 and the second body 28 of the damping device 3 are made of a material belonging to the family of polyurethanes.

According to an embodiment illustrated in FIG. 5, the seat tub 5 comprises a front support 41 of complementary shape to the shape of the rod 10 before the seat 6 of the frame 4.

According to an embodiment not shown, the seat bucket 5 comprises the front support 41 and a rear support of complementary shape to the shape of the rear shank 11 of the seat 6 of the frame 4.

Such a seat 2 thus isolates, thanks to the device 3 damping the bucket 5 seat vibrations or shocks exerted on the frame 4.

Such a damping device 3 allows a simple and fast assembly of the seat 2.

Claims

1. Seat (2) comprising an armature (4), a damping device (3) and a seat tub (5), the armature (4) comprising a first part (8) lateral and a second part ( 9) side, the damping device (3) being arranged on the armature (4) and resting on the first part (8) side and the second part (9) side of the frame (4), the tub Seat (5) comprising a first lateral portion (19) and a second lateral portion (20), the seat tub (5) being disposed on the damping device (3) and resting via the first lateral portion (19) and of the second lateral portion (20) of the seat tub (5), the seat (2) being characterized in that the damping device (3) comprises:

a first body (27) defining:

A first horizontal lower face (29) extending substantially the entire length of the first body (27), the first lower horizontal face (29) being in full contact with the first lateral portion (8) of the armature (4); )

A first upper horizontal face (32) extending substantially the entire length of the first body (27), the first upper horizontal face (32) being in full contact with the first lateral portion (19) of the tub (5) of 'seated ;

a second body (28) defining:

A second lower horizontal face (35) extending substantially the entire length of the second body (28), the second lower horizontal face (35) being in full contact with the second lateral part (9) of the armature (4); )

A second upper horizontal face (38) extending substantially the entire length of the second body (28), the second upper horizontal face (38) being entirely in contact with the second lateral portion (20) of the tub (5) of 'seated.

2. Seat (2) according to claim 1, characterized in that the first body (27) of the damping device (3) has a substantially U-shaped cross section defining: a first inner lower face (30) and a first outer lower face (31) integral with the first lower horizontal face (29) and extending on either side thereof; a first upper inner face (33) and a first upper outer face (34) integral with the first upper horizontal face (32) and extending on either side thereof.

Seat (2) according to any one of the preceding claims, characterized in that the second body (28) of the damping device (3) has a substantially U-shaped cross-section defining:

a second inner lower face (36) and a second lower outer face (37) integral with the second lower horizontal face (35) and extending on either side thereof; a second upper inner face (39) and a second upper outer face (40) integral with the second upper horizontal face (38) and extending on either side thereof.

4. Seat (2) according to any one of claims 2 or 3, characterized in that the first portion (8) side of the frame (4) has a substantially U-shaped cross section defining a first side (12). ), a first (13) inner side and a first (14) outer side, the first (13) inner side and the first (14) outer side being integral with the first (12) upper side and extending from side and other of the latter, the first upper side (12) being in contact with the first lower horizontal face (29) of the first body (27) of the damping device (3), the first inner side (13) being in contact with the first lower inner face (30) of the first body (27) and the first outer side (14) being in contact with the first lower outer face (31) of the first body (27).

5. Seat (2) according to claim 3 or 4 characterized in that the second portion (9) side of the frame (4) has a substantially U-shaped cross section defining a second side (15) upper, a second an inner side (16) and a second outer side (17), the second inner side (16) and the second outer side (17) being integral with the upper second side (15) and extending on either side of the here, the second (15) upper side being contact with the second lower horizontal face (35) of the second body (28) of the damping device (3), the second inner side (16) being in contact with the second lower inner face (36) of the second body (28) and the second outer side (17) being in contact with the second lower outer face (37) of the second body (28).

6. Seat (2) according to any one of claims 2 to 5 characterized in that the first portion (19) side of the bucket seat (5) has a substantially U-shaped cross section defining a first section (21). ) upper, a first pan (22) inside and a first pan (23) outside, the first pan (22) inside and the first pan (23) outside being integral with the first pan (21) and extending upper share and other of the latter, the first upper pan (21) being in contact with the first upper horizontal face (32) of the first body (27) of the damping device (3), the first inner pan (22) being in contact with the first upper inner face (33) of the first body (27) and the first outer face (23) being in contact with the first upper outer face (34) of the first body (27).

7. Seat (2) according to any one of claims 3 to 6 characterized in that the second portion (20) side of the bucket seat (5) has a substantially U-shaped cross section defining a second section (24). ), a second inner pan (25) and a second outer pan (26), the second inner pan (25) and the second outer pan (26) being integral with the upper pan (24) and extending from other of the latter, the second upper panel (24) being in contact with the second upper horizontal face (38) of the second body (28) of the damping device (3), the second inner panel (25) being in contact with the second upper inner face (39) of the second body (28) and the second outer one (26) being in contact with the second upper outer face (40) of the second body (28).

8. Seat (2) according to any one of the preceding claims characterized in that the frame (4) comprises a rod (10) before and the bucket (5) seat comprises a support (41) before able to coincide with the rod (10) before the armature (4).

9. Seat (2) according to any one of the preceding claims characterized in that the armature (4) comprises a rod (11) rear and the bucket (5) seat comprises a rear support adapted to coincide with the rod (11) back of the frame (4).

10. Vehicle (1) comprising a seat (2) according to any one of the preceding claims.