FR3138369A1 - Support element of a vehicle seat - Google Patents

Abstract

Support element of a vehicle seat The invention relates to a support element (12) of a vehicle seat, comprising: a frame (22), a suspension ply (24) attached to the frame (22) , a padding (26) and a filling element. The filling element comprises a first cover (54) at least partially covering a front face (46) of the padding (26) and at least one fixing means (56) extending from the first cover (54) and cooperating with the suspension sheet (24) to hold the first cover (54) applied against the front face (46) of the padding. Figure for abstract: Figure 3

Description

Support element of a vehicle seat

The present invention relates to a support element for a vehicle seat. Such a support element is, for example, a seat, a backrest or a headrest of the seat.

For reasons of aesthetics, comfort and/or protection of the seat, it is known to cover the internal elements of the support element with one or more covers.

The attachment of the caps to the internal elements must be adjusted so that they are correctly applied, in particular to the padding of the support element. Poor adjustment of the covers can, for example, lead to folds which constitute aesthetic defects, areas where the seat tends to wear out more quickly and/or areas where the comfort provided by the seat is reduced.

To adjust the fixing of the caps, it is known to use a large number of profiles and to provide on the internal elements of the support element a large number of fixing parts dedicated to receiving these profiles. The result is a support element whose manufacturing and assembly are complicated and have a significant ecological impact (linked in particular to the production of fixing parts and profiles).

In addition, the large number of profiles used implies a significant mass for the support element.

One of the aims of the invention is to overcome these drawbacks by proposing a vehicle seat support element whose manufacturing and assembly are simplified, whose ecological impact and weight are reduced.

To this end, the invention relates to a support element for a vehicle seat, comprising:

- a frame;

- a suspension sheet attached to the frame;

- a padding comprising a front face intended to extend facing a user of the seat and a rear face opposite the front face, the rear face of the padding resting on the suspension sheet; And

- a filling element comprising:

- a first cap covering at least partially the front face of the padding; And

- at least one fixing means extending from the first cover and cooperating with the suspension sheet to hold the first cover applied against the front face of the padding.

The vehicle seat support element according to the invention has simplified manufacturing and assembly, an ecological impact and a reduced mass since the fixing of the cover on the padding is carried out by cooperation with the suspension sheet, which is a pre-existing part in the support element. The vehicle seat support element according to the invention thus makes it possible to avoid implementing additional fixing parts on the frame, the suspension sheet and the padding, to ensure the fixing of the cover.

According to other characteristics of the vehicle seat back according to the invention, taken individually or in any technically conceivable combination:

- the padding comprises at least one through opening extending from the front face to the rear face, the at least one fixing means passing through said through opening from the first cover to the suspension sheet to fix the first cover to the suspension sheet through the padding;

- the suspension sheet comprises a plurality of rods, the at least one fixing means comprising a hooking element forming a hook fixed around a rod of the suspension sheet;

- the at least one fixing means comprises a return element exerting a return force between the suspension sheet and the first cap;

- the first cap is fixed to the suspension sheet without being directly fixed to the frame;

- the filling element comprises at least one additional fixing means extending from the first cap and cooperating with the frame to fix the first cap to the frame.

- the frame comprises two side uprights, each side upright defining at least one hooking hole, at least one additional fixing means comprising a hooking element forming a hook fixing in one of said hooking holes.

- the at least one additional fixing means comprises a return element exerting a return force between the frame and the first cap;

- the filling element comprises a second cap covering at least partially the rear face of the padding;

- the return element of the at least one fixing means is a tab made of an elastic non-woven material, in particular non-woven polyester;

- the return element of the at least one additional fixing means is a tab made of an elastic non-woven material, in particular non-woven polyester;

- the return element of the at least one fixing means is fixed to the first cap by at least one seam;

- the hooking element is fixed to the return element of the at least one fixing means by at least one seam;

- the second cap is fixed to the first cap by at least one seam and/or a zipper.

The invention also relates to a vehicle seat comprising at least one support element as defined above.

Other aspects and advantages of the invention will appear on reading the description which follows, given by way of example and made with reference to the appended drawings, in which:

- there is a schematic perspective representation of a vehicle seat comprising a support element according to the invention (here a backrest), the filling element having been deliberately omitted so as to expose the frame, the padding and the ply of suspension;

- there is a schematic perspective representation of the headquarters of the , with the filling element;

- there is a schematic representation in enlarged perspective of the seat back of the , in which the second headdress has been deliberately omitted;

- there is a schematic perspective representation of the packing element of the support element of the ;

- there is a schematic perspective representation of the headquarters of the , in which the second cap is illustrated in an open configuration vis-à-vis the first cap.

With reference to Figures 1 to 5, a seat 10 of a vehicle, according to the invention, is described.

The vehicle is, for example, a land, sea or air vehicle.

The seat 10 comprises at least one support element 12. In particular, the seat 10 comprises a plurality of support elements 12.

The support element 12 is, for example, a seat 14, a backrest 16 or a headrest 18.

As illustrated in the example of Figures 1 to 5, here the seat 10 comprises three support elements 12, in particular a seat 14, a backrest 16 and a headrest 18. At least one of these support elements 12 can be in accordance with the invention, the others being able to be of a classic nature or also in accordance with the invention.

In the remainder of the description, the support element 12 according to the invention is described when it is a backrest 16. It is of course understood that the invention also applies to a support element 12 forming a seat 14 or a headrest 18.

In the present example, the seat 14 and the headrest 18 are classic and are not described in further detail.

The support element 12, here the backrest 16, comprises a frame 22, a suspension sheet 24, a padding 26 and a filling element 28.

As illustrated in Figures 1 and 3, the frame 22 defines the general shape of the support element 12. The frame 22 comprises for example an upper crosspiece 32, a lower crosspiece 33 connected to each other by two side uprights 34, so that the frame 22 has the shape of a frame. In the case of a backrest 16, the lower crosspiece 33 extends in the vicinity of the seat 14 of the seat 10, the upper crosspiece 32 extends in the vicinity of the headrest 18 and the side uprights 32 extend extend from the lower crossbar 33 to the upper crossbar 32 on either side of these in a direction of elevation of the support element 12.

The frame 22 is, for example, made of metal.

Advantageously, the frame 22 comprises at least one part for securing to another support element 12. For example, the frame 22 has a part for securing the backrest 16 to the seat 14 and a part for securing the backrest 16 to the headrest 18.

Advantageously, the frame 22, in particular the upper crosspiece 32, carries a mechanism for adjusting the height of the headrest 18.

Even advantageously, the frame 22, in particular the lower crosspiece 33, carries a pivoting mechanism for the backrest 16 relative to the seat 14.

For example, as illustrated in Figures 1 and 3, each side upright 34 defines at least one hooking orifice 36. For example, each side upright 34 defines a plurality of hooking orifices 36. Advantageously, the orifices of hooking 36 are distributed along each side upright 34. More particularly, each side upright 34 is formed by a profile and the hooking orifices 36 extend for example in a side flank of the profile and pass through this flank.

As will be described in more detail below, each attachment orifice 36 cooperates with the lining element 28 to fix a first cap 54 of the lining element 28 to the frame 22.

Also, as will be described in more detail below, the first cover 54 is fixed to the suspension sheet 24.

The suspension ply 24 is fixed to the frame 22. More particularly, the suspension ply 24 is for example stretched between the side uprights 34 of the frame 22.

The suspension ply 24 supports the padding 26. By supporting the padding 26, the suspension ply 24 also provides support for the back of a user of the seat 10, which, as will be described in more detail below, is intended to rest against the padding 26.

For example, the suspension sheet 24 comprises a plurality of rods 40, or rods. The rods 40 are, for example, made of steel.

As illustrated in Figures 1 and 3, the suspension sheet 24 comprises in particular, two vertical lateral rods 41 and a plurality of horizontal central rods 42 extending between the two vertical lateral rods 41. The horizontal central rods 42 form slats support for the padding 26. The vertical side rods 41 and the horizontal central rods 42 form, for example, a single piece.

The vertical lateral rods 41 are substantially parallel to each other.

The horizontal central rods 42 extend in general directions substantially parallel to each other. In other words, the central horizontal rods 42 extend substantially in parallel directions but can locally draw trajectories deviating from these directions. For example, as illustrated in Figures 1 and 3, the horizontal central rods 42 extend along trajectories forming zigzags.

The rods 40, therefore the vertical lateral rods 41 and the horizontal central rods 42 are elastic so that they are capable of deforming when a user of the seat leans on the support element 12 and that they are capable of return to their initial shape when the support ceases. For example, when they are not deformed following the support of a body on the support element 12, the vertical lateral rods 41 and the horizontal central rods 42 extend substantially in the same plane.

Advantageously, the vertical lateral rods 41 extend opposite the side uprights 34 of the frame 22 and are fixed on the side uprights 34.

The padding 26 is intended to ensure the comfort of the support element 12 of the seat 10.

The padding 26 comprises a front face 46 intended to extend facing a user of the seat 10 and a rear face 47 opposite the front face 46. Thus, when a user leans on the support element 12, his body rests on the front face 46 of the padding 26.

As visible in Figures 1 and 3, the rear face 47 rests on the suspension sheet 24.

The padding 26 is for example made of polyester and/or polypropylene fibers or foam.

As illustrated in the example of , the padding 26 comprises at least one through opening 50 extending from the front face 46 to the rear face 47. By through opening we mean that the opening 50 extends through the thickness of the padding 26 and opens on the one hand in the front face 46 and on the other hand in the rear face 47.

For example, the padding 26 includes two through openings 50. With reference to the , each through opening 50 extends along a vertical side rod 41 of the suspension sheet 24. Each through opening 50 then has an elongated shape and extends substantially parallel to the corresponding vertical side rod 41. As will be described below, each through opening 50 constitutes a passage for at least one fixing means 56 of the packing element 28.

According to a variant not shown, the padding 26 comprises a through opening 50 by fixing means 56.

The lining element 28 comprises a first cap 54 and at least one fixing means 56. Optionally, the lining element 28 comprises at least one additional fixing means 57. Still optionally, the lining element 28 comprises a second cap 58.

Advantageously, the at least one fixing means 56 is a fixing part and the at least one additional fixing means 57 is a fixing part. According to another example, the at least one fixing means 56 corresponds to a plurality of fixing parts and the at least one additional fixing means 57 corresponds to a plurality of fixing parts.

According to the example illustrated on the , the packing element 28 comprises six fixing means 56 and eight additional fixing means 57.

The first cap 54 contributes to the aesthetic appearance of the support element 12. Optionally, the first cap 54 also contributes to the comfort provided by the support element 12. Still optionally, the first cap 54 contributes to the protection provided to the padding 26.

The first cover 54 at least partially covers the front face 46 of the padding 26. As illustrated in Figures 2 and 3, the first cover 54 also covers at least partially the frame 22.

Advantageously, the first cap 54 is a skin. In particular, the skin is made of a synthetic material, such as, for example, polyester.

As illustrated on the , the fixing means 56 are arranged on the first cap 54 along at least one line facing a through opening 50 of the padding 26, so that each fixing means 56 is able to pass through the through opening 50. Advantageously, the at least one line is substantially parallel to the direction of elevation of the support element 12. Advantageously, the fixing means 56 are distributed along the corresponding line, in the direction of elevation.

In what follows, a single fixing means 56 is described. Unless otherwise indicated, it is understood that all the fixing means 56 of the packing element 28 are identical.

The fixing means 56 extends from the first cover 54 and cooperates with the suspension sheet 24 to maintain the first cover 54 applied against the front face 46 of the padding 26.

In particular, as illustrated in the , the fixing means 56 passes through the corresponding through opening 50 from the first cover 54 to the suspension sheet 24 to fix the first cover 54 to the suspension sheet 24 through the padding 26.

As illustrated in Figures 3 and 4, the fixing means 56 comprises for example a hooking element 62 forming a hook fixing around a rod 40 of the suspension sheet 24. In particular, the hooking element 62 has a J-shaped section substantially complementary to the cross section of a rod 40 of the suspension sheet 24. According to the example illustrated in the , the hooking element 62 forms a hook fixing around a vertical lateral rod 41 of the suspension sheet 24.

According to a variant, at least one fixing means 56 comprises a hooking element 62 forming a hook fixing around a central horizontal rod 42 of the suspension sheet 24.

Advantageously, the hooking element 62 is fixed to a return element 64 (visible in Figures 3 and 4) of the fixing means 56 by at least one seam.

The fixing means 56 comprises for example the return element 64. The return element 64 exerts a return force between the suspension sheet 24 and the first cap 54. This return force is such that the first cap 54 is applied and constrained against the front face 46 of the padding 26, at least near the through opening 50.

For example, the return element 64 is a tongue made of an elastic non-woven material, in particular non-woven polyester.

Advantageously, the return element 64 is fixed on the first cap 54 by at least one seam.

As illustrated in Figures 3 and 4, the additional fixing means 57 are arranged on the first cap 54 on the periphery of the first cap 54, so that each additional fixing means 57 is able to cooperate with the frame 22. By example, the additional fixing means 57 are arranged on lateral edges of the first cap 54 and distributed along these lateral edges so as to be substantially opposite the hooking holes 36.

In the following, a single additional fixing means 57 is described. Unless otherwise indicated, it is understood that all the additional fixing means 57 of the packing element 28 are identical.

As illustrated in Figures 3 and 4, the additional fixing means 57 extends from the first cap 54 and cooperates with the frame 22 to fix the first cap 54 to the frame 22.

As illustrated in Figures 3 and 4, the additional fixing means 57 comprises for example a hooking element 72 forming a hook fixing in one of the hooking orifices 36 of the frame 22. In particular, the element The hook 72 has a J-shaped section whose tip is inserted into the corresponding hook hole 36.

Advantageously, the hooking element 72 is fixed to a return element 74 (visible in Figures 3 and 4) of the additional fixing means 57 by at least one seam.

The additional fixing means 57 comprises for example the return element 74. The return element 74 exerts a restoring force between the frame 22 and the first cap 54. This restoring force is such that the first cap 54 is applied and constrained against the front face 46 of the padding 26, at least near the ends of the padding 26.

For example, the return element 74 is a tongue made of an elastic non-woven material, in particular polyester. nonwoven.

Advantageously, the return element 64 is fixed on the first cap 54 by at least one seam.

The cooperation on the one hand between the at least one fixing means 56 and the suspension sheet 24 and on the other hand between the additional fixing means 57 and the frame 22 contributes to maintaining the padding 26 pressed against the sheet suspension 24.

The second cap 58 contributes to the aesthetic appearance of the support element 12. Optionally, the second cap 58 contributes to the protection provided to the frame 22, the suspension sheet 24 and/or the padding 26.

The second cover 58 at least partially covers the rear face 47 of the padding 26. As illustrated in the , the second cap 56 also covers at least partially the frame 22.

Advantageously, the second cap 58 is a skin. In particular, the skin is made of a synthetic material, such as, for example, polyester. Advantageously, the second cap 58 has the same appearance as that of the first cap 54. Alternatively, the second cap 58 has an appearance different from that of the first cap 54.

For example, the second cap 58 is fixed to the first cap 54 by at least one seam 78 and/or a zipper 80. In particular, as illustrated in the example of the , the second cap 58 is fixed to the first cap 54 by a seam 78 and a zipper 80. On the , the second cover 58 is illustrated in an open configuration, in which the zipper 80 is open and the second cover 58 is only secured to the first cover 54 by the seam 78. In this configuration, the frame 22, the suspension sheet 24, the padding 26, the fixing means 56 and the additional fixing means 57 are accessible. From the open configuration, the second cover 58 is movable into a closed configuration, in which the zipper 80 is closed so that the second cover 58 is secured to the first cover 54 by the seam 78 and by the zipper 80 The second cap 58 then covers the fixing means 56 and the additional fixing means 57 so that the latter are not visible or accessible from the outside of the support element 12.

In a variant in which the second cap 58 is fixed to the first cap 54 only by a zipper 80, in the open configuration, the second cap 58 is entirely separated from the first cap 54.

According to a non-illustrated embodiment, the first cap 54 is fixed to the suspension sheet 24, in particular via the at least one fixing means 56, without being directly fixed to the frame 22. filling element 28 is then devoid of additional fixing means 57. By "without being directly fixed to the frame", it is understood that there is no fixing between the first cap 54 and the frame 22 provided by a means dedicated to such fixation. In this embodiment, the first cap 54 is fixed to the frame 22 via the suspension ply 24, since the suspension ply 24 is itself fixed to the frame 22. Thanks to the invention , the support element 12 has a simple structure. The retention of the first cap 54 applied against the front face 47 of the padding 26 is ensured by cooperation with the suspension sheet 24, which is a pre-existing part in the support element 12.

The cooperation between the suspension sheet 24 and the fixing means 56 on the one hand and the cooperation between the frame 22 and the additional fixing means 57 on the other hand make it possible to tension the first cover 54 satisfactorily so that it applies harmoniously to the front face 47 of the padding 26.

Thanks to the invention, it is not necessary to implement parts on the frame 22, on the suspension sheet 26 and/or on the padding 26, dedicated to fixing the first cap 54.

Claims (10)

Support element (12) of a vehicle seat (10), comprising:
- a frame (22);
- a suspension sheet (24) fixed to the frame (22);
- a padding (26) comprising a front face (46) intended to extend facing a user of the seat (10) and a rear face (47) opposite the front face (46), the rear face (47 ) of the padding (26) resting on the suspension sheet (24); And
- a filling element (28) comprising:
- a first cover (54) at least partially covering the front face (46) of the padding (26); And
- at least one fixing means (56) extending from the first cover (54) and cooperating with the suspension sheet (24) to maintain the first cover (54) applied against the front face (46) of the padding ( 26). Support element (12) according to claim 1, in which the padding (26) comprises at least one through opening (50) extending from the front face (46) to the rear face (47), the at least one fixing means (56) passing through said through opening (50) from the first cap (54) to the suspension ply (24) for fixing the first cap (54) to the suspension ply (24) through the padding (26). Support element (12) according to claim 1 or 2, in which the suspension sheet (24) comprises a plurality of rods (40), the at least one fixing means (56) comprising a hooking element (62 ) forming a hook fixing around a rod (40) of the suspension sheet (24). Support element (12) according to any one of claims 1 to 3, in which the at least one fixing means (56) comprises a return element (64) exerting a return force between the suspension ply (24). ) and the first cap (54). Support element (12) according to any one of claims 1 to 4, in which the first cap (54) is fixed to the suspension sheet (24) without being directly fixed to the frame (22). Support element (12) according to any one of claims 1 to 4, in which the packing element (28) comprises at least one additional fixing means (57) extending from the first cap (54) and cooperating with the frame (22) to fix the first cap (54) to the frame (22). Support element (12) according to claim 6, in which the frame (22) comprises two lateral uprights (34), each lateral upright (34) defining at least one hooking orifice (36), the at least one additional fixing means (57) comprising a hooking element (72) forming a hook fixing in one of said hooking orifices (36). Support element (12) according to claim 6 or 7, in which the at least one additional fixing means (57) comprises a return element (74) exerting a return force between the frame (22) and the first headdress (54). Support element (12) according to any one of claims 1 to 8, in which the filling element (28) comprises a second cap (58) covering at least partially the rear face (47) of the padding (26) . Vehicle seat (10) comprising at least one support element (12) according to any one of claims 1 to 9.