Vehicle seat

Abstract

A vehicle seat (20) comprises a first seat base (21), a first backrest (22), a first hinge assembly (31) defining a first axis of rotation (41), and a second hinge assembly (32) defining a second axis of rotation (42), the first backrest (22) being rotatable relative to the seat base (22) via the first hinge assembly (31) and via the second hinge assembly (32), the second axis of rotation (42) being spaced apart from the first axis of rotation (41), the first backrest (22) extending between a top end (112) and a bottom end (111) in a first spatial pose (P1) for driving.

Description

TECHNICAL FIELD

[0001] The invention relates to a vehicle seat, to a vehicle seat assembly and to a vehicle. BACKGROUND

[0002] DE 10 2013 007 184 B1, JP S58 - 78233 U, JP S57 - 85332 U and JP H08 - 183378 A disclose a motor vehicle seat having a seat base and a backrest, wherein a flap is provided in the backrest.

[0003] JP S54 - 181418 U, FR 2 944 740 A1 and FR 2 944 745 B1 disclose a seat, wherein the backrest can be pivoted backwards with the upper part. SUMMARY

[0004] The problem addressed by the invention is therefore to provide a new vehicle seat, a new vehicle seat assembly and a new vehicle.

[0005] This problem is solved by the subject matter of the invention.

[0006] A vehicle seat comprises a first seat base, a first backrest, a first hinge assembly defining a first axis of rotation, and a second hinge assembly defining a second axis of rotation, the first backrest being rotatable relative to the seat base via the first hinge assembly and via the second hinge assembly, the second axis of rotation being spaced apart from the first axis of rotation, the first backrest extending between a top end and a bottom end in a first spatial pose for driving.

[0007] Thus, the entire backrest can be rotated not only via the first hinge assembly but also via the second hinge assembly, which allows achieving a spatial pose that is advantageous for a person located behind the vehicle seat.

[0008] According to a preferred embodiment, the second hinge assembly is arranged higher than the first hinge assembly. This allows achieving different relative rotations.

[0009] According to a preferred embodiment, in the at least one first spatial pose, the bottom end is arranged at a first height and the top end is arranged at a second height, and the second hinge assembly is located at a third height, the third height being between the first height and the second height. Thus, upon rotation, a part of the backrest can be rotated forwards and a part of the backrest can be rotated backwards.

[0010] According to a preferred embodiment, the first height is defined in percent as 0% and the second height is defined in percent as 100%, and the third height is set in a first range, which is between 20% and 100%, preferably between 25% and 80%, and more preferably between 30% and 70%. Thus, the second hinge assembly is neither at the very bottom nor at the very top.

[0011] According to a preferred embodiment, the first seat base has a highest seat base position, the first rotation axis being defined by the first hinge assembly below the highest seat base position. This allows a good adjustability to a space pose required for driving.

[0012] According to a preferred embodiment, the second rotation axis is defined by the second hinge assembly above the highest seat base position, wherein the second rotation axis is preferably defined at least 20 cm above the highest seat base position, more preferably at least 30 cm above the highest seat base position. This provides enough space for stretched legs.

[0013] According to a preferred embodiment, the vehicle seat has at least one side wall, and the second hinge assembly is configured at the at least one side wall. Thus, the side wall allows a good rotatability of the entire rear surface.

[0014] According to a preferred embodiment, the first hinge assembly is configured on the at least one side wall. The side wall thus structurally acts not only on the first hinge assembly but also on the second hinge assembly.

[0015] According to a preferred embodiment, the side wall is rotatable relative to the first seat base by the first hinge assembly. The side wall can thus be rotated with the first hinge assembly and thus remains in the correct position for the second hinge assembly.

[0016] According to a preferred embodiment, the first backrest is rotatable into a second space pose via the second hinge assembly, in which second space pose there is a first height distance between the first seat base and the first backrest at least in a local region, which first height distance is at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. This allows the leg to be stretched to maintain a semi-sitting body position.

[0017] According to a preferred embodiment, the first height distance is at least 10 cm everywhere, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. This provides a very suitable space for the leg.

[0018] According to a preferred embodiment, the first backrest has a rear side in the first spatial pose and is rotatable via the second hinge assembly into a third spatial pose in which the rear side is located above. Preferably, the third spatial pose corresponds to the second spatial pose. The rear side can be stiffer and flatter than the front side and thus more suitable as a table or shelf.

[0019] According to a preferred embodiment, the first backrest has a flat surface on the rear side and is rotatable via the second hinge assembly into a fourth spatial pose in which the flat surface of the rear side is at least partially located horizontally on the upper side of the backrest. This is advantageous, for example, so that a laptop does not slide off the rear side when parked.

[0020] According to a preferred embodiment, the first backrest comprises a storage area with a recess and the recess extends downwards in the fourth spatial pose. Such a recess is, for example, advantageous for safely placing a cup.

[0021] According to a preferred embodiment:

[0022] - the first hinge assembly (31) comprises a pivot bearing,

[0023] - the second hinge assembly (32) comprises a pivot bearing, or

[0024] - the first hinge assembly (31) and the second hinge assembly (32) comprise a pivot bearing.

[0025] According to a preferred embodiment, a headrest is attached to the backrest. The headrest can thus rotate with the backrest when the backrest is rotated.

[0026] According to a preferred embodiment, the first backrest is rotatable as a whole via the first hinge assembly and via the second hinge assembly relative to the seat base.

[0027] According to a preferred embodiment, the first backrest is rotatable via the second hinge assembly relative to the seat base from the first spatial pose in such a way that the top end has a forward movement component and the bottom end has a backward movement component. The upper region is thus moved forward by the rotation and the rear side is moved upward.

[0028] A vehicle seat assembly comprises such a first vehicle seat and a second vehicle seat, the second vehicle seat comprising a second seat base and a second backrest and being arranged behind the first vehicle seat. The person in the second vehicle seat can thus make good use of the first vehicle seat.

[0029] According to a preferred embodiment, the spacing of the first vehicle seat relative to the second vehicle seat is prescribed to be variable. The personnel on the vehicle seats can thus set a comfortable position, and the backrest of the first vehicle seat can be placed in a suitable position as a table or shelf.

[0030] According to a preferred embodiment, the spacing of the first seat base and the second seat base is adjustable, such that the spacing is less than 30 cm, preferably less than 20 cm, and particularly preferably less than 10 cm. Thereby, a substantially continuous support of the legs can be established.

[0031] A vehicle comprises such a vehicle seat assembly. The vehicle can be well used for resting, and this increases the safety.

[0032] According to a preferred embodiment, the vehicle comprises a windshield, the first backrest is equipped with a first headrest, the second backrest is equipped with a second headrest, the first backrest is rotatable into a fourth spatial pose via the second hinge assembly in such a way that the windshield is not obscured by the first backrest in the height of the second headrest as viewed from the second vehicle seat. This allows the personnel in the second seat to enjoy the scenery from behind or to watch a movie in a vehicle cinema system. Preferably, the fourth spatial pose corresponds to the second spatial pose and / or the third spatial pose. BRIEF DESCRIPTION OF DRAWINGS

[0033] Further details and advantageous further improvements of the application will emerge from the embodiments, which are described below and shown in the drawings and are not to be interpreted as limiting the application in any way. It goes without saying that the above-mentioned features and those to be discussed below can not only be used in the respectively specified combinations, but also in other combinations or alone without departing from the scope of the present application. Shown are:

[0034] Figure 1 a vehicle with a vehicle seat assembly in a first spatial pose,

[0035] Figure 2 a vehicle with a vehicle seat assembly in a second spatial pose, Figure 1

[0036] Figure 3 a vehicle seat of a vehicle seat assembly in a second spatial pose, Figure 1

[0037] Figure 4 a vehicle seat of a vehicle seat assembly in a second spatial pose, Figure 1

[0038] ​​​Parts that are identical or have the same effect are provided with the same reference signs hereinafter and are generally only described once. The description of all the figures is based on one another in order to avoid unnecessary repetitions. DETAILED DESCRIPTION

[0039] Figure 1 A vehicle 10 is schematically shown, which has a vehicle seat assembly 18, a windshield or front glass 12, an instrument panel 14 and a vehicle floor 16. The vehicle seat assembly 18 comprises a vehicle seat 20 and a vehicle seat 70 arranged one behind the other.

[0040] The vehicle seat 20 has a seat base 21, a backrest 22, a headrest 23, a hinge assembly 31 and a hinge assembly 32. The seat base 21 is also called “Seat base” in English and is typically upholstered, but can also be constructed as a plastic shell.

[0041] The vehicle seat 70 has a seat base 71, a backrest 72 and a headrest 73.

[0042] The hinge assembly 31 defines a rotation axis 41, the hinge assembly 32 defines a rotation axis 42.

[0043] The hinge assemblies 31, 32 can be constructed as pure pivot bearings. However, they can also have a folding assembly which allows a translational displacement in addition to a rotation, wherein for example the rotation axis changes its position during the rotation. Such a folding assembly comprises for example a plurality of hinge rods and / or pivot bearings. The hinge assemblies 31, 32 can at least partially have a ratchet / stop (Rastung) for a predetermined ratchet / stop position.

[0044] The backrest 22 is rotatable relative to the seat base 22 via the first hinge assembly 31 and the second hinge assembly 32. The two rotation axes 41, 42 are spaced apart from one another.

[0045] In an embodiment, a side wall 24 and a further side wall (not shown) on opposite sides of the backrest 22 are provided.

[0046] The hinge assembly 32 is constructed on the side wall 24 and, preferably, the hinge assembly 31 is also constructed on the side wall 24.

[0047] Preferably, the side wall 24 is rotatable relative to the seat base 21 by means of the hinge assembly 31. More preferably, the position of the side wall 24 remains unchanged when the backrest 22 is rotated relative to the seat base 21 via the hinge assembly 32.

[0048] An adjustment assembly 25 is provided for adjusting the vehicle seat 20 and an adjustment assembly 75 is provided for adjusting the vehicle seat 70. The adjustment options include for example at least one from the adjustment options selected from the following:

[0049] - height adjustment of the seat base 21,

[0050] - tilting movement of the seat base 21,

[0051] - forward or backward sliding of the seat base 21,

[0052] - rotational movement about the hinge assembly 31, and

[0053] - rotational movement about the hinge assembly 32.

[0054] The hinge assembly 32 is arranged higher than the hinge assembly 31 and this leads to different relative movements, wherein an upper region of the seat base 22 can be simultaneously folded forward and a lower region of the seat base 22 can be folded backward or vice versa.

[0055] The hinge assembly 32 can also be configured to limit the possible range of rotational angles.

[0056] The first seat base 21 has a highest seat base position 210, the height of which is indicated by the dashed line. The hinge assembly 31 is preferably arranged below the highest seat base position 210 and the hinge assembly 32 is preferably arranged above the highest seat base position 210, more preferably at least 20 cm above the highest seat base position 210 and particularly preferably at least 30 cm above the highest seat base position 210.

[0057] In an embodiment, the backrest 22 is in a first spatial pose PI for traveling and extends in the direction indicated by the dashed line 28. The seat base 21 extends in the direction indicated by the dashed line 27, which is preferably substantially horizontal. The angle 29 between the lines 27 and 28 in the spatial pose PI is preferably obtuse, i.e. it is greater than 90°. Preferably, the vehicle seat 20 is a vehicle seat for a passenger and / or a vehicle seat for a driver. In the spatial pose PI, the occupant on the vehicle seat 70 can only partially see the windshield 12, as the field of view is at least partially obscured by the vehicle seat 20. The backrest 22 has a rear side 220 facing the vehicle seat 70.

[0058] In terms of the vehicle seat assembly 18, the spacing of the vehicle seat 20 relative to the vehicle seat 70 can be set to be variable, for example, by displacement of the vehicle seat 20, by displacement of the vehicle seat 70 or by displacement of the vehicle seat 20 and the vehicle seat 70.

[0059] Preferably, the spacing of the first seat base 21 and the second seat base 71 is adjustable, such that the spacing is less than 30 cm, preferably less than 20 cm and particularly preferably less than 10 cm.

[0060] Figure 2 In correspondence withFigure 1 The view shows a vehicle 10 with a vehicle seat assembly 18.

[0061] and Figure 1 Unlike the spatial pose P1, the vehicle seat assembly 18 is now in spatial pose P2. Here, the backrest 22 has been rotated via the second hinge assembly 32, and the rear side 220 preferably has a horizontal orientation, at least in a partial area. Additionally, the seat bases 21 and 71 have moved toward each other, allowing the occupant 91 seated on the vehicle seat 70 to be in a comfortable position where their legs can extend between the seat base 21 and the backrest 22. Therefore, the occupant 91 can comfortably place their legs on the front seat base 21. Furthermore, the rotated backrest 22 provides a shelf surface and can be used as a table. In this embodiment, the occupant 91 works beside a laptop 92 located on the backrest 22. Utilizing the rear side 220 of the backrest 22 is advantageous because the rear side can be flat, at least in a partial area, without compromising seating comfort.

[0062] In one embodiment, the backrest 22 includes a storage area 221 with a recess 222 on its rear side 220. In spatial pose P2, the recess 222 extends downward and is therefore usable for, for example, placing a cup or other object.

[0063] Occupant 91, seated in vehicle seat 70 with head at the height of headrest 73, can see the windshield 12 from the second vehicle seat 70 in spatial pose P2 without being obstructed by the backrest 22 or headrest 23, by rotating the entire backrest 22.

[0064] Preferably, a height gap 60 exists between the seat base 21 and the backrest 22, at least in a localized area, wherein the height gap 60 is at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. Therefore, the legs of the occupant 91 sitting on the vehicle seat 70 can be comfortably extended between the seat base 21 and the backrest 22. Preferably, the height gap 60 is at least 10 cm in all places, preferably at least 15 cm, more preferably at least 20 cm, and particularly preferably at least 30 cm. The height gap is the distance along the z-direction of the vehicle, i.e., vertically upward.

[0065] In one embodiment, the sidewall 24 allows the entire backrest 22 to rotate about the hinge assembly 31 and about the hinge assembly 32.

[0066] Alternatively, the hinge assembly 32 may be implemented, for example, via a pin (not shown) on the B-pillar or elsewhere on the vehicle body, or another type of pivot bearing.

[0067] Alternatively, an absatz can be selected between seat bases 21 and 71, allowing the occupant to extend their legs downwards.

[0068] In an embodiment, the backrest 22 has a flat surface 223 on the rear side 220. The backrest 22 is rotatable via the second hinge assembly 32 into a spatial pose P2 in which the flat surface 223 lies at least partially horizontally on the upper side of the backrest 22.

[0069] Figure 3 The vehicle seat 20 is shown in an enlarged view. The spatial pose corresponds to Figure 1 the spatial pose PI.

[0070] The backrest 22 has a bottom end 111 and a top end 112, and it extends between the bottom end 111 and the top end 112. The bottom end 111 is at a first height HI, the top end 112 is at a second height H2, and the hinge assembly 32 is at a third height H3. The third height H3 is between the first height HI and the second height H2.

[0071] The first height HI can be defined in percentage terms as 0%, the second height H2 as 100%, and the third height H3 preferably in the range between 20% and 100%, preferably between 25% and 80%, and more preferably between 30% and 70%. In an embodiment, the third height H3 is approximately 50%.

[0072] In an embodiment, a lateral stop 226 and a lower stop 225 are arranged on the rear side of the backrest 22. They reduce the risk of objects sliding off the backrest 22 in the spatial pose P2. The stops 225, 226 can be configured as a step or a rounded protrusion. They can also be designed to be collapsible in order to prevent interference with a rear occupant in the spatial pose PI.

[0073] Figure 4 The vehicle seat 20 in the spatial pose P2 is shown. Figure 1 and Figure 2 It can be seen that a gap between the seat base 21 and the backrest 22.

[0074] The position of the stops 226 and 225 can be seen, which enable objects to be placed safely on the backrest 22, even if the surface 223 is arranged in a non-horizontal orientation. The stops 226, 225 can also be arranged around the outer edge of the backrest 22.

[0075] Within the scope of the invention, many variants and improvements are of course possible.

Claims

1. A vehicle seat (20) comprising a first seat base (21), a first backrest (22), at least one sidewall (24), a first hinge assembly (31), and a second hinge assembly (32), the first hinge assembly (31) defining a first axis of rotation (41), and the second hinge assembly (32) defining a second axis of rotation (42), the first backrest (22) being rotatable relative to the first seat base (21) via the first hinge assembly (31) and via the second hinge assembly (32), wherein... The second rotation axis (42) is spaced apart from the first rotation axis (41), the first backrest (22) extends between the top end (112) and the bottom end (111) in a first spatial pose (P1) for driving and includes a rear side (220) in the first spatial pose (P1), the first backrest (22) having a flat surface (223) on the rear side (220), the first backrest (22) being rotatable to a second spatial pose (P2) via the second hinge assembly (32), in which: -The rear side (220) is located on top, - The flat surface (223) of the rear side (220) is at least partially horizontally located on the upper side of the first backrest (22), and -A first height gap (60) exists between the first seat base (21) and the first backrest (22), the first height gap (60) being at least 10 cm in all places. in, The first seat base (21) has a highest seat base position (210), and wherein the first rotation axis (41) is defined below the highest seat base position (210), wherein the first hinge assembly (31) is constructed on the at least one side wall (24), and wherein the second hinge assembly (32) is constructed on the at least one side wall (24). The position of the at least one sidewall (24) remains unchanged when the first backrest (22) rotates relative to the first seat base (21) about the second hinge assembly (32). The first backrest (22) is rotatable relative to the first seat base (21) via the first hinge assembly (31) and via the second hinge assembly (32).

2. The vehicle seat (20) according to claim 1, wherein the second hinge assembly (32) is arranged above the first hinge assembly (31).

3. The vehicle seat (20) according to claim 1 or 2, wherein in the first spatial pose (P1), the bottom end (111) is arranged at a first height (H1) and the top end is arranged at a second height (H2), and wherein the second hinge assembly (32) is located at a third height (H3) between the first height (H1) and the second height (H2).

4. The vehicle seat (20) according to claim 3, wherein the first height (H1) is defined as 0% and the second height (H2) is defined as 100% and wherein the third height (H3) is set within a first range between 20% and 100%.

5. The vehicle seat (20) according to claim 4, wherein, The first range is between 25% and 80%.

6. The vehicle seat (20) according to claim 4 or 5, wherein, The first range is between 30% and 70%.

7. The vehicle seat (20) according to claim 6, wherein the second rotation axis (42) is defined above the highest seat base position (210) by the second hinge assembly (32), wherein the second rotation axis (42) is defined above the highest seat base position (210) by at least 20 cm.

8. The vehicle seat (20) according to claim 7, wherein, The second axis of rotation (42) is defined at least 30 cm above the highest seat base position (210).

9. The vehicle seat (20) according to claim 1 or 2, wherein the sidewall (24) is rotatable relative to the first seat base (21) via the first hinge assembly (31).

10. The vehicle seat (20) according to claim 1 or 2, wherein the first height spacing (60) is at least 15 cm in all places.

11. The vehicle seat (20) according to claim 10, wherein, The first height spacing (60) is at least 20 cm in all places.

12. The vehicle seat (20) according to claim 11, wherein, The first height spacing (60) is at least 30 cm in all places.

13. The vehicle seat (20) according to claim 1 or 2, wherein the first backrest (22) includes a storage area (221) having a recess (222), and wherein the recess (222) extends downward in the second spatial pose (P2).

14. The vehicle seat (20) according to claim 1 or 2, wherein -The first hinge assembly (31) includes a pivot bearing, - The second hinge assembly (32) includes a pivot bearing or - The first hinge assembly (31) and the second hinge assembly (32) include a pivot bearing.

15. The vehicle seat (20) according to claim 1 or 2, wherein the first backrest (22) is rotatable relative to the first seat base (21) from the first spatial pose (P1) via the second hinge assembly (32) in such a way that the top end (112) has a forward motion component and the bottom end (111) has a rearward motion component.

16. A vehicle seat assembly (18) comprising a vehicle seat (20) according to any one of the preceding claims and a second vehicle seat (70), the second vehicle seat (70) comprising a second seat base (71) and a second backrest (72) and disposed behind the vehicle seat (20).

17. The vehicle seat assembly (18) according to claim 16, wherein the distance between the vehicle seat (20) and the second vehicle seat (70) is defined as variable.

18. The vehicle seat assembly (18) according to claim 16 or 17, wherein the distance between the first seat base (21) and the second seat base (71) is adjustable such that the distance is less than 30 cm.

19. The vehicle seat assembly (18) according to claim 18, wherein, The spacing is less than 20cm.

20. The vehicle seat assembly (18) according to claim 19, wherein, The spacing is less than 10cm.

21. A vehicle (10) comprising a vehicle seat assembly (18) according to any one of claims 16 to 20.

22. The vehicle (10) according to claim 21, wherein the vehicle includes a windshield (12), wherein, The first backrest is provided with a first headrest (23), the second backrest (72) is provided with a second headrest (73), and wherein the first backrest (22) is rotatable to a second spatial pose (P2) via the second hinge assembly (32) in such a way that the windshield (12) is not obstructed by the first backrest (22) when viewed from the second vehicle seat (70) at the height of the second headrest (73).

Images