Vehicle seat, motor vehicle and method for operating a vehicle seat

Abstract

The invention relates to a vehicle seat, a motor vehicle and a method for operating a vehicle seat, in particular to a vehicle seat (20) for an occupant (16) of a motor vehicle (10), a motor vehicle (10) comprising a vehicle seat (20) and a method for operating a vehicle seat (20). According to the invention, the backrest (24) of the vehicle seat (20) comprises, on the rear side (24b), a support region (26) which, in a state pivoted to the seat cushion (22) by means of the front side (24a) of the backrest (24), is designed for placing articles and / or limbs. In the pivoted state, the pneumatic device (28) forms a pneumatically operable elevation (30) for laterally supporting the support region (26) in order to prevent articles and / or limbs placed on the support region (26) from leaving the support region (26).

Description

Technical Field

[0001] The invention relates to a vehicle seat for an occupant of a motor vehicle, a motor vehicle comprising the vehicle seat and a method for operating the vehicle seat. Background Art

[0002] Long journeys in motor vehicles are often perceived by the occupants as tiring. The seated body posture and limited freedom of movement can be taxing and lead to muscle tension, joint pain, etc. This often affects the occupants' feet and legs in particular.

[0003] In order to make long journeys, in particular in motor vehicles, more comfortable and less stressful, various massage systems are installed in the vehicle seats of modern motor vehicles.

[0004] Document DE 10 2007 041 504 B4 relates to a passenger car with a front passenger seat, the backrest of which can be adjusted beyond a vertical position and locked to the seat cushion of the front passenger seat. On the rear side of the backrest, a massage device for the feet of a passenger seated behind the front passenger seat is arranged in the lower area. Thus, the rear passenger can place his feet on the folded front passenger seat and have them massaged by the massage device arranged there.

[0005] Document DE 11 2013 003 592 B4 also describes a vehicle seat with a foot massage system. Instead of folding the backrest of the vehicle seat, the foot massage system is folded out from the rear side of the backrest to accommodate the feet of the occupant sitting behind it. This has the advantage that the occupant can continue to use the vehicle seat to sit. Summary of the invention

[0006] The invention is now based on the object of providing a vehicle seat which makes travelling in a motor vehicle even more comfortable.

[0007] The object according to the invention is achieved by a vehicle seat for an occupant of a motor vehicle, a motor vehicle comprising the vehicle seat and a method for operating the vehicle seat.

[0008] A first aspect relates to a vehicle seat for an occupant of a motor vehicle. The vehicle seat comprises a seat cushion, a backrest and a pneumatic device. The backrest is constructed in such a way that it can be (reversibly) pivoted to the seat cushion of the vehicle seat. In addition, the backrest comprises a support area on the rear side. The support area is constructed for placing objects and / or limbs in a state in which the front side of the backrest is pivoted to the seat cushion. In other words, the vehicle seat can be folded together from the seat setting for normal use (e.g., a substantially right-angled arrangement of the seat cushion and the backrest) so that in this state the rear side of the backrest can be used as a placement surface. As objects, for example, smaller objects (such as magazines, mobile devices, keys, etc.) can be placed on the support area. With regard to limbs, the support area is particularly used for placing the feet, legs and / or calves of an occupant of the motor vehicle.

[0009] In order to prevent the placed articles and / or limbs from falling out of the support area due to the forces occurring when the motor vehicle is driving on a curve, the pneumatic device is arranged on the rear side of the backrest and is configured to form a pneumatically operable elevation for lateral support of the support area. The lateral support of the support area can be configured on the left and / or right side of the driving direction of the motor vehicle. When driving on a curve, the feet, legs or calves of the occupants placed on the support area of ​​the backrest are kept in the support area due to the configured lateral support, so that driving in the motor vehicle can be made more comfortable for the occupants.

[0010] The elevation caused by the pneumatic device relative to the base area of ​​the supporting region is preferably greater than 1 cm, particularly preferably greater than 2 cm and / or less than 10 cm, particularly preferably less than 5 cm.

[0011] In a preferred design, the pneumatic device is further set up to be configured to support other pneumatically operable raising parts in the middle of the support area. The articles and / or limbs placed in the support area are prevented from colliding with each other when driving on a curve by the middle support. It is clear at a glance that the lateral support prevents, for example, the legs, calves or feet placed during driving on a curve from falling from the support area. However, in this case, the legs, calves and / or feet will collide with each other. The occurrence of this collision is prevented by the middle support, so that driving can be made more comfortable. Preferably, the lateral and / or middle raising parts extend substantially in the driving direction of the motor vehicle, so as to achieve effective surface support of the placed limbs.

[0012] In another preferred design, the pneumatic device includes at least one pneumatic bubble chamber, which includes a profile that is used to pneumatically operate and is used to support the raised portion of the support area laterally and / or in the middle. The pneumatic bubble chamber can be inflated and deflated by the pressure applied thereto. By the corresponding pressure applied, the resistance relative to the placed articles and / or limbs can also be variably set. In other words, the moving-out position of the pneumatic bubble chamber can be variably set. For example, the pneumatic bubble chamber is connected to a compressor for this purpose. The profile causes the pneumatic bubble chamber to expand unevenly when the pneumatic bubble chamber is filled with compressed air. In order to obtain the profile, the part of the bubble chamber can be equipped with a supporting pillar and / or include different material thicknesses and / or material types. Preferably, the raised portion caused by the profile in the pneumatic operation is configured to increase by at least 10%, particularly preferably at least 25% compared with the base surface. The pneumatic bubble chamber realizes in a simple way that the pressure applied accordingly reaches different moving-out positions or heights in a targeted manner. According to the set pressure, a supporting area from soft to quite firm can be realized.

[0013] In another preferred design, the pneumatic device includes at least one pneumatic bubble chamber pair, wherein the pneumatic bubble chambers of the pneumatic bubble chamber pair are respectively set up to construct a pneumatically operable raising portion for supporting the support area laterally and / or in the middle. The bubble chambers are used in pairs to partition the support area so as to provide a separate setting option on the surface of the support area. For example, each bubble chamber of the bubble chamber pair can be set for a corresponding placed foot, a placed calf or a placed leg. In this case, the bubble chambers of the bubble chamber pair are arranged at a distance from each other laterally to the driving direction of the motor vehicle. In another design, the bubble chambers of the bubble chamber pair are arranged at a distance from each other in the driving direction. In this case, the height difference along the support area can be compensated or at least reduced by the different moving-out positions of the bubble chambers. For example, the height difference along the support area occurs by the following, that is, the backrest usually has an inclination angle between the seat pad and the backrest and / or between the bottom surface and the backrest that is not equal to zero when it is pivoted to the seat pad. Furthermore, different sitting postures or sitting positions of the occupant may require different height differences along the support area that are perceived as comfortable, which can be variably achieved by targeted control of the extended position of the air bubble chamber.

[0014] In another preferred embodiment, the pneumatic device includes a plurality of pneumatic bubble chamber pairs arranged offset. For example, the pneumatic bubble chamber pairs are arranged in parallel. With a plurality of bubble chamber pairs, individual height settings can be achieved in the direction of travel and laterally to the direction of travel, whereby the support area is designed to be even more comfortable for the occupants of the motor vehicle.

[0015] The pneumatic device is preferably further set up to set the different extended positions of one or more pneumatic bubble chambers based on the inclination angle and / or height setting of the backrest. Comfort can be further improved by considering the inclination angle or height setting of the backrest when manipulating the extended position of the bubble chamber.

[0016] The pneumatic device is also preferably designed to set different extended positions of one or more pneumatic bubble chamber pairs based on the longitudinal setting of the vehicle seat. The longitudinal setting means in the direction of travel of the motor vehicle. Depending on the longitudinal setting of the vehicle seat, it can be determined whether the leg or the calf or more precisely the foot is placed on the support area, so that a corresponding different extended position of one or more bubble chamber pairs is necessary in order to achieve a comfortable placement.

[0017] Furthermore, the pneumatic device is preferably arranged to cyclically change the moved-out position of at least one, a plurality of or all pneumatic bubble chambers. By cyclically moving one or more pneumatic bubble chambers in and out, a massage effect is produced. In other words, the pneumatic device is set up to perform a massage function, in particular when using bubble chambers.

[0018] In a further preferred embodiment, it is provided that the backrest comprises a soft cover covering the pneumatic device on the rear side. The pneumatic device is protected by the cover and is not visible to the occupant. The cover provides comfort even if the pneumatic device is switched off or operated under high pressure. The soft cover is preferably foam. Foam is flexible and durable.

[0019] Preferably, the backrest comprises a carrier to which the soft covering part is fastened. The pneumatic device is then arranged between the carrier and the soft covering part. The carrier prevents the bubble chamber of the pneumatic device from (unnecessarily) expanding into the vehicle seat, but rather extends substantially to the rear side of the vehicle seat under pressure supply. As a result, a compact arrangement of the pneumatic device in the backrest is achieved without increasing the structural space depth of the vehicle seat. Preferably, the soft covering part comprises a recess for accommodating the bubble chamber(s) of the pneumatic device.

[0020] In other preferred designs, the backrest is arranged to abut or rest on the seat pad when the front side of the backrest is pivoted to the seat pad. By abutting or resting, the stability and thus the load-bearing capacity in the pivoted state are improved, and material fatigue is reduced.

[0021] Another aspect of the present invention relates to a motor vehicle. The motor vehicle comprises at least one front seat and a rear seat. The front seat is designed as the vehicle described above. The rear seat is arranged so that the support area of ​​the backrest of the front seat is set up in a pivoted state to accommodate the feet and / or legs of the occupants of the motor vehicle placed on the rear seat. The front seat is usually used for the driver's seat and / or the co-pilot seat. The rear seat is a seat in the rear row, especially the second row, of the motor vehicle, also known as a rear bench, a rear seat or a back seat. It is particularly advantageous that the co-pilot seat is designed as the vehicle seat described above, because the vehicle seat can also be used to place the limbs of the occupants on the rear seat during driving. For example, in the case of automatic vehicle operation, a vehicle seat used as a driver's seat according to the type described herein can be used as a placement portion. The advantages achieved by using the vehicle seat can be achieved in a similar manner in the case of a motor vehicle. The disclosed feature combination of the vehicle seat can be similarly transferred to the motor vehicle. Therefore, the repeated description of the features and advantages is omitted.

[0022] In a preferred design, the front seat is adjustable in its longitudinal position. By adjustable longitudinal adjustment, the passenger placed on the rear seat can adapt the positioning of the front seat or the support area to its size and sitting posture, so as to occupy a comfortable sitting position.

[0023] In another preferred embodiment, the motor vehicle further comprises an operating element for operating the pneumatic device, the longitudinal position of the front seats, the height of the backrest of the front seats and / or the inclination angle of the backrest. The operating element is arranged here so that it can be operated for the occupants placed on the rear seats. In other words, the operating element is arranged directly near the rear seats so that it is accessible to the occupants placed on the rear seats. As a result, the occupants can easily set a comfortable placement position for their feet, legs or calves in the support area of ​​the backrest.

[0024] Another aspect of the invention relates to a method for operating a vehicle seat for an occupant of a motor vehicle as described herein. The motor vehicle is preferably the motor vehicle described above. According to the method, the pneumatic device of the vehicle seat is controlled in order to form a pneumatically operable raising part for lateral support of the support area in a state where the front side of the backrest is pivoted to the seat cushion. The advantages achieved with the vehicle seat can be achieved in a similar manner in the case of this method. The disclosed feature combinations of the vehicle seat can be transferred to the method in an analogous manner. Therefore, a repeated description of the features and advantages is omitted.

[0025] Other preferred embodiments of the present invention are derived from the remaining features mentioned in the technical solution of the present invention.

[0026] Unless stated otherwise in individual cases, the various embodiments of the invention mentioned in this application can be advantageously combined with one another. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is explained below in the following embodiments according to the accompanying drawings.

[0028] Figure 1 A schematic diagram of a motor vehicle with a driver's seat according to one embodiment is shown in a side view,

[0029] Figure 2 Shown according to Figure 1 A schematic cross-sectional view of a driver's seat,

[0030] Figure 3 A schematic diagram of a motor vehicle with a driver's seat according to one embodiment is shown in a top view,

[0031] Figure 4 Shown according to Figure 3 A schematic cross-sectional view of a driver's seat,

[0032] Figure 5 A schematic diagram shows a motor vehicle with a driver's seat according to one embodiment in a top view, and

[0033] Figure 6 Shown according to Figure 5 Schematic cross-section of a driver's seat. DETAILED DESCRIPTION

[0034] Figure 1 A schematic diagram of a motor vehicle 10 with a vehicle seat 20 according to one embodiment is shown in a side view. The motor vehicle 10 comprises at least one front seat 12 and a rear seat 14. The front seat 12 is designed as a vehicle seat 20. For example, the front seat 12 is a passenger seat in the motor vehicle 10, and the rear seat 14 is a rear seat behind the passenger seat of the motor vehicle 10.

[0035] The vehicle seat 20 includes a seat cushion 22 and a backrest 24 which is configured to be pivotable to the seat cushion 22 of the vehicle seat 20. The backrest 24 includes a support area 26 on a rear side 24b which is configured to be used for placing objects and limbs in a state where the backrest 24 is pivoted to the seat cushion 22 using a front side 24a of the backrest 24. Figure 1 In the example shown in FIG. 2 , the front side 24 a of the backrest 24 rests substantially completely on the seat cushion 22 . In the sitting position, the backrest 24 pivots substantially orthogonally to the seat cushion 22 .

[0036] Furthermore, the vehicle seat 20 comprises a pneumatic device 28 which is arranged in the support region 26 on the rear side 24b of the backrest 24. The rear seat 14 of the motor vehicle 10 is arranged such that the support region 26 of the backrest 24 of the vehicle seat 20 is provided in the pivoted state for accommodating the feet 44 and / or legs 42 of an occupant 16 of the motor vehicle 10 who is seated on the rear seat 14. Figure 1 As shown in FIG. 1 , the feet 44 and / or legs 42 of the occupant 16 seated on the rear seat 14 are placed in the support area 26 and on the pneumatic device 28 arranged therein in order to achieve a comfortable sitting position.

[0037] An operating element 18 for actuating a pneumatic device 28 by an occupant 16 is arranged on the rear seat 14 of the motor vehicle 10 .

[0038] about Figure 2 , the functionality of the vehicle seat 20 and the pneumatic device 28 are explained in more detail. Figure 2 Along the basis Figure 1 The AA section plane of shows a schematic cross-sectional view of the driver's seat 20. The pneumatic device 28 is set up to construct a pneumatically operable raising portion 30 for the lateral support support area 26 and a pneumatically operable raising portion 32 for the intermediate support support area 26. For this purpose, the pneumatic device 28 includes at least one pair of pneumatic bubble chambers 34, each of which has a profile 36, which is used to pneumatically construct the raising portion 30 for the lateral support support area 26. The pneumatic bubble chamber 34 can be inflated and deflated by compressed air applied thereto. The individual hardness or resistance of the filled pneumatic bubble chamber 34 relative to the placed articles and / or limbs can be variably set by the corresponding applied pressure of the compressed air. In other words, the moving-out position of the pneumatic bubble chamber 34 can be variably set according to the applied pressure of the compressed air. For example, the pneumatic bubble chamber 34 is connected to one or more compressors for this purpose. For example, the compressor is controlled by the operating element 18.

[0039] In order to construct the contour 36 of the pneumatic bubble chambers 34 of the bubble chamber pair, the pneumatic bubble chambers 34 are provided with supporting struts in the region of the contour 36 and / or comprise different material thicknesses and / or material types there. The contour 36 causes the pneumatic bubble chambers 34 to expand unevenly when they are filled with compressed air. When using additional pneumatic bubble chambers 34 arranged between the pneumatic bubble chambers 34 of the bubble chamber pair, the pneumatic device 28 is configured to support additional pneumatically operable elevations 32 of the support region 26 in the middle.

[0040] The raised portions 30, 32 extend in a direction parallel to the driving direction of the motor vehicle 10. Therefore, the foot 44, leg 42 and / or calf of the occupant 16 placed on the support area 26 of the backrest 24 are kept as flat as possible in the support area 26 by the raised portion 30 of the lateral support constructed during the curve driving, so that the occupant 16 can achieve a comfortable ride on the motor vehicle 10. The additional raised portion 32 for supporting the support area 26 in the middle prevents the foot 44, leg 42 and / or calf of the occupant 16 placed in the support area from colliding or hitting each other during the curve driving. Although the raised portions 30 and 32 are shown according to three pneumatic bubble chambers 34, these raised portions 30, 32 can also be constructed by only one pneumatic bubble chamber 34 with a corresponding profile 36. The raised portions 30, 32 caused by the pneumatic device 28 are raised by at least 2 cm in the expanded state compared to the base surface of the expanded pneumatic bubble chamber 34 without the profile 36. Figure 2 The pneumatic bubble chamber 34 is shown in a (maximum) expanded state.

[0041] Furthermore, the backrest 24 of the vehicle seat 20 comprises a soft covering 38 on the rear side 24b, which covers the pneumatic device 28. "Soft" is to be understood here in such a way that a comfortable placement of the calf, leg 42 and / or foot 44 in the support area 26 is achieved for the occupant 16. The pneumatic device 28 is protected by the soft covering 38 and is accommodated in the backrest 24 invisibly to the occupant 16. The soft covering 38 provides comfort even when the pneumatic device 28 is switched off or operated at high pressure. The soft covering 38 is designed as foam.

[0042] In addition, the backrest 24 of the vehicle seat 20 also includes a carrier 40, to which the soft cover part 38 is fastened. The pneumatic device 28 or the pneumatic bubble chamber 34 is arranged between the carrier 40 and the soft cover part 38. The carrier 40 prevents the pneumatic bubble chamber 34 of the pneumatic device 28 from expanding unnecessarily into the vehicle seat 20, but extends substantially to the rear side 24b of the backrest 24 of the vehicle seat 20 under pressure supply. For this purpose, the soft cover part 38 includes a recess (not shown) for accommodating the pneumatic bubble chamber 34 of the pneumatic device 28. As a result, a compact arrangement of the pneumatic device 28 in the backrest 24 is achieved without increasing the structural space depth of the vehicle seat 20.

[0043] Below, according to Figure 3 and Figure 4 Explain the other aspects about variable height setting and angle setting. To this end, Figure 3 A schematic diagram of a motor vehicle 10 with a driver's seat 20 according to one specific embodiment is shown in a top view. Figure 4 Along the basis Figure 3The BB section plane of FIG. 1 shows a schematic cross-sectional view of the driver's seat 20 in a side view. The vehicle seat 20 is substantially similar to Figure 1 The vehicle seat 20 described in the embodiment is designed so that only the differences between the embodiments are discussed below. In this regard, the re-description of the features that occur repeatedly is omitted.

[0044] In the driver's seat 20 Figure 4 It becomes clear from the side view shown in FIG. 2 that the pneumatic device 28 includes a plurality of pneumatic bubble chamber pairs arranged offset, for example, three pneumatic bubble chamber pairs arranged offset. Here, the pneumatic bubble chamber pairs are arranged offset parallel to each other in the direction of travel of the motor vehicle 10. Figure 3 In the top view of FIG. 1 , the bubble chamber pair is shown without a pneumatic bubble chamber 34 arranged in the middle thereof, which is configured to support the additional raised portion 32 of the support region 26 in the middle, but it goes without saying that the present invention is not limited to this. Rather, in addition, a pneumatic bubble chamber 34 arranged in the middle of the corresponding pneumatic bubble chambers 34 of the bubble chamber pair can also be provided to configure the additional raised portion 32 for supporting the support region 26 in the middle.

[0045] also, Figure 4 The pivot axis D is shown, about which the backrest 24 is designed to be pivotable to the seat cushion 22. In other words, the pivot axis D is also the pivot axis of the backrest 24. The pivot axis D is preferably substantially integrated in the structure of the backrest 24, so that the entire backrest 24 together with the soft covering 38 (for example foam) and, if necessary, the (protective) cover pulled over the backrest 24 is designed to be rotatable about the pivot axis D. Preferably, the inclination of the backrest 24 can be set about the pivot axis D, for example, when the backrest 24 is in the vertical position. The angle between the backrest 24 and the bottom surface of the motor vehicle 10 is the inclination angle E. In the state of the backrest 24 being pivoted to the seat cushion 22 with the front side 24a thereof, the backrest 24 rests on the seat cushion 22. However, here, the inclination angle E which is not equal to zero is usually retained, which makes the placement of the calf, leg 42 and / or foot 44 in the support area 26 uncomfortable for the occupant 16. Therefore, the pneumatic device 28 is also designed to set different extended positions of the pneumatic bubble chambers 34 of the pneumatic bubble chamber pair based on the inclination angle E and / or the height setting of the backrest 24. Figure 4 , a stepped configuration of the extended position of the pneumatic bubble chamber 34 of a pneumatic bubble chamber pair is shown by way of example, by which the influences arising from the inclination angle E are reduced and / or compensated, thereby increasing the comfort for the occupant 16. In this example, in addition to actuating the individual extended positions of the pneumatic bubble chamber 34 (pneumatic bubble chamber pair), the operating element 18 is also provided for actuating the height position and the inclination angle E of the backrest 24 of the vehicle seat 20.

[0046] Below, according to Figure 5 and Figure 6 Another aspect in view of different sitting postures and seating positions of the occupant 16 is explained. Figure 5 A schematic diagram of a motor vehicle 20 with a driver's seat 20 according to one embodiment is shown in a top view, and Figure 6 The side view along the CC section plane shows the Figure 5 A schematic cross-sectional view of the driver's seat 20. Again, according to Figure 5 The vehicle seat 20 is substantially similar to the Figure 1 or Figure 3 The vehicle seat design described in , so that only the differences are discussed below. In this regard, the re-description of the features that occur repeatedly is omitted.

[0047] exist Figure 5 and Figure 6 As can be seen in the figure, different sitting postures and sitting positions of the occupant 16 also require different settings of the vehicle seat 20, in particular different settings of the pneumatic device 28, in order to ensure comfortable driving. This can be achieved variably by targeted manipulation of the extended position of the pneumatic bubble chamber 34. To this end, the vehicle seat 20 can be variably adjusted in its position along the longitudinal direction (i.e. along the direction of travel). Assuming that the occupant 16 wants to place the sole of his foot 44 in the support area 26, the occupant 16 operates the operating element 18 in such a way that the distance between the vehicle seat 20 and the rear seat 14 in the longitudinal direction is reduced to such an extent that the sole of the foot 44 can be placed essentially completely in the support area 26 in the angled leg position. In this example, the extended position of the pneumatic bubble chamber is adjusted in the longitudinal direction. Figure 4 The stepped configuration shown in FIG. 1 would result in a more unnatural and therefore more uncomfortable foot position for the occupant 16. Therefore, the pneumatic device 28 is set to, in the example shown with a reduced distance in the longitudinal direction between the vehicle seat 20 and the rear seat 14, at the same height or at a height similar to that in FIG. Figure 4 The opposite stepped shape shown in FIG. 1 constitutes the removed position of the bubble chamber pair.

[0048] Furthermore, a method (not shown) is provided for operating the vehicle seat 20 described herein for an occupant 16 of a motor vehicle 10. According to the method, a pneumatic device 28 of the vehicle seat 20 is actuated in order to form a pneumatically operable increase 30 for lateral support of the support region 26 and a pneumatically operable increase 32 for central support of the support region 26 in a state pivoted to the seat cushion 22 with the front side 24 a of the backrest 24 .

[0049] Reference numerals list

[0050] 10 Motor Vehicles

[0051] 12 Front seats

[0052] 14 Rear seats

[0053] 16 Crew

[0054] 18 Operating elements

[0055] 20 Vehicle seats

[0056] 22 Seat pad

[0057] 24 Backrest

[0058] 24a Front

[0059] 24b Rear

[0060] 26 Support Area

[0061] 28 Pneumatic device

[0062] 30 Raised section for lateral support

[0063] 32 for the raised part in the middle support

[0064] 34 Pneumatic bubble chamber

[0065] 36 Profile

[0066] 38 Soft Cover

[0067] 40 Bearings

[0068] 42 Legs

[0069] 44 Feet

[0070] AA Cutting Plane

[0071] BB Cutting Plane

[0072] CC Cutting Plane

[0073] D Pivot axis

[0074] E Tilt angle.

Claims

1. A vehicle seat (20) for an occupant (16) of a motor vehicle (10), comprising: Seat pad (22), A backrest (24) which is designed to be pivotable to a seat cushion (22) of the vehicle seat (20) and comprises a support area (26) on a rear side (24b), wherein the support area (26) is designed for placing objects and / or limbs when the backrest (24) is pivoted to the seat cushion (22) with a front side (24a), and a pneumatic device (28) arranged on the rear side (24b) of the backrest (24), It is characterized in that The pneumatic device (28) is designed to form a pneumatically operable elevation (30) for lateral support of the supporting region (26).

2. The vehicle seat (20) according to claim 1, It is characterized in that The pneumatic device (28) is further designed to form a further pneumatically operable elevation (32) for centrally supporting the support region (26).

3. The vehicle seat (20) according to any one of the preceding claims, It is characterized in that The pneumatic device (28) comprises at least one pneumatic bubble chamber (34) which comprises a contour (36) for pneumatically configuring elevations (30, 32) for laterally and / or centrally supporting the support region (26).

4. The vehicle seat (20) according to any one of the preceding claims, It is characterized in that The pneumatic device (28) comprises at least one pneumatic bubble chamber pair, wherein the pneumatic bubble chambers (34) of the pneumatic bubble chamber pair are each designed to form a pneumatically operable elevation (30) for laterally and / or centrally supporting the support region (26).

5. The vehicle seat (20) according to any one of the preceding claims, It is characterized in that The pneumatic device (28) includes a plurality of pneumatic bubble chamber pairs arranged in an offset manner.

6. The vehicle seat (20) according to claim 4 or 5, It is characterized in that The pneumatic device (28) is configured to set different extended positions of the one or more pneumatic bubble chamber pairs based on the inclination angle (E) and / or the height setting of the backrest (24).

7. The vehicle seat (20) according to claim 6, It is characterized in that The pneumatic device (28) is further configured to set different extended positions of the one or more pneumatic bubble chamber pairs based on a longitudinal setting of the vehicle seat (20).

8. The vehicle seat (20) according to any one of claims 3 to 7, It is characterized in that The pneumatic device (28) is designed to cyclically change the extended position of at least one pneumatic bubble chamber (34).

9. The vehicle seat (20) according to any one of the preceding claims, It is characterized in that The backrest (24) comprises a soft cover (38) on the rear side (24b) which covers the pneumatic device (28).

10. The vehicle seat (20) according to claim 9, It is characterized in that The backrest (24) comprises a carrier (40) to which the soft covering (38) is fastened, wherein the pneumatic device (28) is arranged between the carrier (40) and the soft covering (38).

11. The vehicle seat (20) according to any one of the preceding claims, It is characterized in that The backrest (24) is placed on or rests on the seat cushion (22) in a state where the front side (24a) of the backrest (24) is pivoted to the seat cushion (22).

12. A motor vehicle (10) comprising at least one front seat (12) and a rear seat (14), It is characterized in that The front seat (12) is designed as a vehicle seat (20) according to any of the preceding claims, and the rear seat (14) is arranged in such a way that a support area (26) of a backrest (24) of the front seat (12) is provided in a pivoted state for accommodating the feet (44) and / or legs (42) of an occupant (16) of the motor vehicle (10) who is seated on the rear seat (14).

13. The motor vehicle (10) according to claim 12, It is characterized in that The front seats (12) are designed to be adjustable in their longitudinal position.

14. The motor vehicle (10) according to claim 12 or 13, further comprising an operating element (18) for operating the pneumatic device (28), the longitudinal position of the front seat (12), the height of the backrest (24) of the front seat (12) and / or the inclination angle (E) of the backrest (24), wherein: The operating element (18) is arranged to be operable for an occupant (16) seated on the rear seat (14).

15. A method for operating a vehicle seat (20) according to any one of claims 1 to 11 for an occupant (16) of a motor vehicle (10), It is characterized in that The pneumatic device (28) is actuated in order to form a pneumatically operable elevation (30) for lateral support of the support region (26) in a state in which the backrest (24) is pivoted to the seat cushion (22) with the front side (24a) of the backrest (24).

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