Transformable vehicle seat arrangement

Abstract

System for adjusting a seat cushion surface profile of a vehicle seat arrangement, comprising a supporting basic structure with a plurality of pneumatic cylinders (1) designed and arranged for deflecting a seat cushion surface and individually controllable by a control unit of the system, wherein the pneumatic cylinders (1) are arranged in a planar distribution over the seat cushion surface, and wherein respective seat cushion surface-side ends of the pneumatic cylinders (1) have a respective interface to an elastically flexible fabric covering (3) of a seat cushion supported on the basic structure.

Description

[0001] The invention relates to a system for adapting a seat cushion surface profile of a vehicle seating arrangement, and to a vehicle seating arrangement with such a system.

[0002] Pneumatic seat adjustments for increasing comfort are known in the prior art. Furthermore, synergistic uses of pneumatic elements in a vehicle seat to enhance vehicle safety are described in the prior art.

[0003] DE 11 2021 003 774 T5 describes in this context a safety system for a pneumatic seat of a vehicle, wherein the pneumatic seat comprises at least one head cushion airbag, one shoulder support airbag, at least one side airbag, at least one waist support airbag, at least one seat cushion airbag and at least one leg support airbag, wherein the safety system for a pneumatic seat further comprises an information collection module, an information fusion module and a control module, wherein the information collection module serves to collect vehicle body data and motion information of the vehicle as well as external environment information of the vehicle; wherein the information fusion module serves to determine a current operating scenario of the vehicle based on the vehicle body data, the motion information and the external environment information collected by the information collection module;and wherein the control module serves, depending on the current operating scenario determined by the information fusion module, to inflate the seat cushion airbag such that the seat cushion airbag partially deploys when it is determined that the current operating scenario is a first operating scenario; and to fully inflate and deploy the seat cushion airbag when it is determined that the current operating scenario is a second operating scenario.

[0004] Furthermore, US patent 2017 / 0292578A1 discloses a cushioning module in which, among other things, the seat and backrest surfaces of a seat can be variably adjusted in their contour, firmness, and comfort level. This is achieved by a compressed air arrangement within the cushioning module using a multitude of pneumatic cylinders, which, in conjunction with a mounting distributor and a retaining plate, allow for adjustment of the seat surfaces. However, the described design using numerous point-acting pneumatic cylinders is very complex and expensive.

[0005] Despite the increasing use of pneumatic elements in vehicle seats, which are becoming more prevalent in modern technology, customers typically still have to make a one-time decision when purchasing a new vehicle regarding their desired rear seating configuration; specifically, whether the rear seating should consist of two comfortable individual seats or a conventional bench seat for three passengers. Subsequent changes are either impossible or extremely difficult. Other vehicle seats also often offer only limited kinematic configurability.

[0006] The object of the invention is to develop a seating arrangement such as a vehicle rear bench of a passenger car that is easier to configure, in particular for a changing number of passengers sitting on the rear bench, and furthermore offers a significant increase in comfort for the passenger.

[0007] The invention is defined by the features of independent claims 1 and 5. Advantageous further developments and embodiments are the subject of dependent claims.

[0008] A first aspect of the invention relates to a system for adapting a seat cushion surface profile of a vehicle seat arrangement, comprising a supporting basic structure with a plurality of pneumatic cylinders which are designed and arranged for deflecting a seat cushion surface and which can be individually controlled by a control unit of the system, wherein the pneumatic cylinders are arranged distributed over the surface of the seat cushion, and wherein the respective seat cushion surface-side ends of the pneumatic cylinders have a respective interface to an elastically flexible fabric covering of a seat cushion supported on the basic structure.

[0009] The term "seat cushion surface profile" describes the entirety of local deformations and deflections, or positions, of points on a padded surface, the so-called seat cushion surface, leg rest, seat surface, and / or backrest. At least one of these components—leg rest, seat surface, and backrest—of a vehicle seat, particularly the rear bench seat of a passenger car, features a seat cushion that comprises an elastically flexible fabric cover. Furthermore, a pneumatic cylinder described above is generally understood as an adjusting element. Technically equivalent, a pneumatic cylinder could, in principle, be replaced by other corresponding adjusting elements, such as electric or pneumatic actuators or mechanical joint mechanisms.

[0010] When the pneumatic cylinders move, the surface of the elastic, flexible fabric cover is curved and deformed without tearing or exposing the pneumatic cylinders. Individual cushioning elements can also be provided above the pneumatic cylinders; these can be padded with a soft filling material such as foam or can themselves contain an air cushion. Using one or more air cushions allows for a further increase in comfort, as the air cushions can be linked to a massage function of the seating arrangement, enabling a massage effect through controlled changes in the air cushion volume. The elastic, flexible fabric cover forms a separating layer between the basic structure with the pneumatic cylinders and the vehicle interior. Therefore, the pneumatic cylinders are not visible to the vehicle occupants.Similarly, a flexible fabric cover, extending over the entire seating arrangement, also conceals the impact areas of the individual seats. This creates a seamless appearance across the vehicle's transverse direction and simultaneously offers individual adjustment options for each seat.

[0011] For this purpose, the pneumatic cylinders are arranged inside a vehicle seat in such a way that they can deflect the seat cushion surface from the inside, particularly perpendicular to any flat extension of the seat cushion surface. Each pneumatic cylinder can thus perform both a shaping function through actuation and a passive springing function. Special stop valves allow the cylinder to move to and maintain specific positions. For the cylinders to have a springing effect, the air pressure should roughly correspond to the force exerted on the springs by a person's body weight. This allows the cylinders to absorb road irregularities or shifts in the occupant's weight.

[0012] For example, by simultaneously controlling and moving several pneumatic cylinders, entire sections of the vehicle seating arrangement can be raised or lowered. The necessary pneumatic lines, electronic cables, any required actuators, and hinges are routed, wherever possible, only within the individual supports of the basic structure to maintain a tidy layout and avoid exposing additional hoses or cables.

[0013] By individually controlling the pneumatic cylinders via a control unit, a wide variety of surface shapes can be created on at least one leg rest, seat surface, and backrest, preferably across the entire rear bench seat of a passenger car. The surface shapes can be designed to create individual bucket seats, forming defined seating configurations for a specific number of passengers in the rear of the passenger car.

[0014] A rear bench seat in a passenger car can provide lateral support for, for example, one, two, or three people. The rear bench seat can also be configured so that the surface shape of at least the seat cushions and backrests can be changed between an optimal configuration for one person or, optionally, two people.

[0015] A vehicle seat, particularly the rear bench seat configuration of a passenger car, can be easily adapted to customer needs. Optimal comfort can always be achieved, while in the case of a rear bench seat, greater flexibility is possible in selecting the number of passengers seated there. Specifically, the control unit allows for the configuration of a large and comfortable individual seat with a lounge-like feel.

[0016] The following scenarios, for example, can be advantageously carried out with the vehicle seating arrangement according to the invention, in particular if first and second adjustable outer armrests are provided and / or a center armrest or a pull-out table: Preferably, the leg rest and backrest are connected to the seat surface on opposite sides. Particularly when the leg rest, backrest, and seat surface are all equipped with a suitable seat cushion that can be deformed by pneumatic cylinders within its surface profile, a high degree of flexibility in the configuration of the vehicle seating arrangement is possible.

[0017] One possible scenario involves a single passenger in the rear. The following configuration can be achieved automatically or manually: The passenger takes a seat, and the second armrest rises. With automatic configuration, for even greater comfort, the passenger can be detected using suitable sensors before entering the vehicle, specifically scanning their size, build, etc. This allows for a pre-configuration of the seating arrangement, including the door opening. Seated centrally in the rear, the passenger can enjoy a commanding view of the entire journey from their throne-like position.If needed, the following scenarios can also be implemented: To allow the occupant to work or place items during the journey, they can unfold two tables by folding down the front half of the wide armrests. These tables can then be joined in the middle to form one large table. In this position, the backrest is upright and the leg rest is lowered. A relaxation position can also be set: The seat cushion can be tilted thanks to the mechanisms. At the same time, the backrest rotates backward and the leg rest extends upward. The leg rest also extends further to provide maximum leg support. Additionally, a more advanced version allows for more or less lateral support in the shoulder area, if required.

[0018] A second possible scenario involves two people in the rear: When a vehicle door is opened, a center armrest rises from the seat cushion. To prevent anyone from reaching into the mechanism from the side, a knitted fabric cover between the support plates and upholstery elements is stretched taut. Once the passengers are seated, an additional option is to lower narrow armrests on the outer sides. As with the armrests for the main center seat, the center armrest can also be moved manually by pressing a button. Furthermore, the telescopic leg rests extend to the outer seats. A "Relax" scenario can be easily implemented. Once the occupants are seated, their legs can be raised, as previously described. Additionally, the entire seating system rotates backward, and the backrest can be reclined even further.An additional "Home" feature allows the seat and backrest to be converted into a two-seater. In this configuration, the occupants are not separated by a center armrest but can sit directly against each other. This can be done in the middle of the rear or on the outer edges. The outer positioning has the advantage of allowing the use of a wide armrest from the single-person configuration, and potentially even the fold-out table.

[0019] A third possible scenario involves three people in the rear: Upon opening the door, passengers will find, for example, a slightly modified seating arrangement, with the seat cushions and backrests adjusted to accommodate three people. Despite the limited space, it is still possible to individually recline the backrests and seat cushions. However, the leg rests would need to be split if required. These may only be designed for a maximum of two people. On the other hand, all rear passengers can enjoy the massage functions, etc. Therefore, the "Relax" scenario can only be partially implemented, as the passengers are sitting too close together.

[0020] The more pneumatic cylinders are provided per unit area along the seat cushion surface, the more precisely the surface profile of the seat cushion can be modified. If, in addition, controllable air cushions are provided, for example, to implement a massage function, the quality of the massage also increases with the number of air cushions, and the associated increase in the number of degrees of freedom also expands the range of massage functions. Up to 100 or more pneumatic cylinders and / or air cushions can be provided per rear seat.

[0021] According to an advantageous embodiment, the basic structure has at least one supply carrier, main carriers and secondary carriers arranged on the supply carrier, wherein the secondary carriers form branches of the main carriers, and wherein pneumatic lines coming from the supply carrier are guided in and / or on the main carriers and secondary carriers to supply the pneumatic cylinders with air.

[0022] According to a further advantageous embodiment, each interface to the elastically flexible fabric covering of the seat cushion has a ball head with a retaining plate arranged on it, wherein the respective retaining plate supports a respective cushion element, wherein the fabric covering of the seat cushion is located between the respective cushion element and the associated retaining plate, so that a plurality of adjacent cushion elements with the fabric covering arranged below the cushion elements form the seat cushion.

[0023] In this embodiment, ball heads are arranged at the ends of the pneumatic cylinders, on which retaining plates are mounted. The retaining plates are thus movably mounted on the pneumatic cylinders and adapt to the surface depending on the weight applied. Furthermore, they increase the contact area and therefore reduce the number of pneumatic cylinders required.

[0024] According to a further advantageous embodiment, each cushioning element has an air cushion which is connected to a pneumatic line in order to achieve a massage function by applying a temporal pattern to the air filling of the air cushion.

[0025] Air cushions are inserted into the retaining plates and supplied with compressed air via a central feedthrough. This enables a massage function that operates independently of the pneumatic cylinders. In addition to the air supply for massage and ventilation, electrical cables for heating coils in the seat cushion are also routed through an opening in each retaining plate.

[0026] Another aspect of the invention relates to a vehicle seating arrangement with a system as described above and below, comprising a leg rest, a seat surface, and a backrest, at least one of which is equipped with a seat cushion surface and the system for adapting the seat cushion surface profile of the seat cushion surface.

[0027] According to a further advantageous embodiment, the backrest has mainly vertically extending backrest struts which can be rotated individually and independently of each other relative to an axis of rotation along a transverse axis of the vehicle.

[0028] According to a further advantageous embodiment, at least two backrest struts arranged in shoulder width can be rotated relative to each other in order to adjust side bolsters for adjustable lateral support.

[0029] According to another advantageous embodiment, the leg rest is connected to a telescopic spindle in order to selectively widen or narrow the leg rest upon control of the control unit.

[0030] According to a further advantageous embodiment, the vehicle seating arrangement also includes at least one seat belt buckle that can be moved in the transverse direction of the vehicle.

[0031] It is generally possible for an occupant to change their seating position at will in the rear of a vehicle. If, for example, two people slide inwards on the seats, the position of the seat belts and buckles would no longer be correct. To ensure the safety of the occupants at all times, this design allows the position of the seat belt buckles to be changed. This adjustment is preferably controlled by an actuator on a rail, operated by the control unit. A self-locking spindle drive ensures that the seat belt buckles cannot move unintentionally. The seat belts are made longer accordingly to compensate for the increased distance.

[0032] According to a further advantageous embodiment, the vehicle seating arrangement also includes an armrest that is adjustable along at least part of the height of an outer side of a backrest, wherein the armrest can be rotated from a horizontal to a vertical position and vice versa. Wide and comfortable armrests are particularly important for creating a large and comfortable single seat with a lounge feel.

[0033] Advantages and preferred further developments of the proposed vehicle seating arrangement result from an analogous and substantive transfer of the above statements made in connection with the proposed system.

[0034] Further advantages, features, and details will become apparent from the following description, in which – possibly with reference to the drawing – at least one embodiment is described in detail. Identical, similar, and / or functionally equivalent parts are marked with the same reference numerals.

[0035] They show: Fig. 1: A basic structure with a supply carrier of a system for adapting a seat cushion surface profile of a vehicle seat arrangement according to an embodiment of the invention. Fig. 2: A front part of a seat and leg rest with a shearing mechanism and a telescopic spindle according to an embodiment of the invention. Fig. 3: An arrangement of pneumatic cylinders with retaining plates according to an embodiment of the invention. Fig. 4: A backrest according to an embodiment of the invention. Fig. 5: A device for tilting the seat surface according to an embodiment of the invention. Fig. 6: An extendable armrest according to an embodiment of the invention. Fig. 7: A center armrest according to an embodiment of the invention. Fig. 8: A foldable and height-adjustable side armrest according to an embodiment of the invention. Fig. 9: A vehicle seating arrangement in the rear of a vehicle according to an embodiment of the invention. Fig. 10: An extendable central table according to an embodiment of the invention. Fig. 11: Another vehicle seating arrangement in the rear of a vehicle with a seat belt buckle according to an embodiment of the invention.

[0036] The representations in the figures are schematic and not to scale.

[0037] Fig. Figure 1 shows a basic structure with a supply carrier 5, main carriers 7 arranged on it, and secondary carriers 9 arranged on these, with pneumatic cylinders 1 being arranged on the secondary carriers 9. The main carriers 7 are arranged along the main direction of travel of the vehicle and form a base for the secondary carriers 9 branching off from them. All these elements of the basic structure perform a load-bearing function and serve to guide and hold lines and rotary mechanisms, in particular joint degrees of freedom, preferably concealed. Several main carriers 7 terminate in a supply carrier 5, which is installed along a transverse axis of the vehicle and is rigidly connected to the vehicle's body shell. In the example of the Fig. The support structure 5 forms an axis of rotation between a seat and a backrest, but can also be designed as an axis of rotation between the seat and a leg rest. The secondary supports 9 branch off perpendicularly from their respective main supports 7 and provide a mounting point for the pneumatic cylinders 1. If further degrees of freedom are provided in the basic structure, the secondary supports 9 can also rotate around the main supports 7.

[0038] Fig. Figure 2 shows the front part of a seat surface, from which a leg rest is arranged, its length adjustable by means of a shearing mechanism and its width adjustable by means of a telescopic spindle 15. The leg rest connects to a basic structural component at the front of the seat surface. A first shearing mechanism is provided behind the seat cushion of the leg rest. In order for the leg rest to be extended and not to move against the vehicle floor, it must rotate forward around its telescopic axis (around a transverse vehicle axis). A fabric cover 3 (in Fig. (3 not shown) is movably mounted on the side plate elements. An internal motor rotates the telescopic spindle 15, which rotates in the opposite direction towards the center. Slides are mounted on this spindle and move inwards in the direction of the vehicle's transverse axis. The thinner rods parallel to the telescopic spindle 15 serve as guides for the slides. This opens the scissor mechanism, causing the side plate elements to move apart downwards, pulling the fabric cover 3 along with them from behind. The advantage of this design is that the fabric cover 3 is not interrupted by gaps or material separations, but is made from a single piece. Furthermore, the mechanism allows for widening the leg rest: This widening is achieved using the telescopic spindle 15 and a second scissor mechanism.The leg rest can be adjusted either translationally in length or widened laterally in the vehicle. This allows the footrests to be moved to the outer positions when two people are traveling. When positioned centrally, the occupant benefits from an extra-wide leg rest. The axes can rotate independently on the left and right sides. Drive units can be concealed within the supports of the base structure.

[0039] Fig. Figure 3 shows a section of the arrangement of pneumatic cylinders 1. Each pneumatic cylinder 1 has a cylindrical rod at its end facing the seat cushion surface, which in turn has a ball head at its end for receiving a retaining plate 11. Respective cushion elements 13 are arranged on the retaining plates 11, wherein in the Fig. For clarity, a cushioning element 13 is shown arranged on the left retaining plate 11, while a retaining plate 11 without a cushioning element 13 is shown on the right. Since the pneumatic cylinders 1 have a springy and damping effect, each cushioning element 13 can be thinner than in a conventional seat cushion. An elastically flexible fabric cover 3 is also arranged between the pneumatic cylinders 1 and the cushioning elements 13. The respective cushioning element 13 is connected to the pneumatic cylinders 1 so that the individual cushioning elements 13, in conjunction with the fabric cover 3, cannot warp or lift off.

[0040] Fig. Figure 4 shows a backrest from the rear. Vertically extending backrest struts 14 serve as supports for the pneumatic cylinders 1. The backrest struts are part of the basic structure of the backrest, which is rotatable relative to the seat surface. Receptacles for headrests are arranged at the upper end of the backrest struts 14. The headrests preferably form a single unit that extends across the entire width of the rear compartment, allowing the head to rest against them from any seating position. They can also be divided into three kinematically independent sections for greater adjustability. The backrest struts 14 extend away from a supply carrier 5.

[0041] Fig. Figure 5 shows a device for tilting the seat surface. For a relaxed seating position in the vehicle, it is not sufficient to simply be able to tilt the backrest; the seat surface must also be adjustable to achieve the most comfortable seating position. The pneumatic cylinders 1 themselves may not have sufficient stroke to achieve this angle. Therefore, in this embodiment, an additional mechanism is installed, which is connected to the main supports 7 of the seat surface and raises it as needed. A motor drives a spindle, which pushes a lever arm, fixed to the floor, forward, thereby initiating a rotational movement of the entire seat surface. This mechanism is preferably installed in all main supports 7.

[0042] Fig. Figure 6 shows a retractable armrest 19 in its extended position. The armrest 19 is formed from the outer, adjacent seat surfaces by means of a space-saving joint. In this joint, the lower arms are rotated upwards by a motor. This automatically sets the two upper arms in motion, causing the entire main support 7, to which the joint is attached, to rotate upwards. The special feature of this joint is that it performs both a translational and a rotational movement until the armrest 19 reaches an optimal height. The joint moves the main support 7 along with the branching secondary supports 9 and the cylinders 1 attached to them.Although the movement caused by rotating the entire main support 7, including all attached components, is very complex, the resulting advantage is significant: all functions originating from the pneumatic cylinders 1 are transferred to the new position. This allows, for example, a massage of the resting arms, as well as ventilation or heating. The armrests 19 can be controlled automatically (e.g., when entering the vehicle) or manually via a button. These buttons are preferably located at the front of three main supports 7 (outermost for the main seat armrests 19 and centrally for a center armrest).

[0043] Fig. Figure 7 shows an example of center armrests for two people. A shearing mechanism located beneath the upholstery elements 13 pushes two rows of cylinders upwards. This stretches the stretch material of the fabric cover 3 located beneath the upholstery elements 13 between the raised center armrests and the seat surface. This prevents reaching into the space or dropping anything into it. As with a centrally shaped single seat, the advantage is that comfort functions (massage, etc.) change position with the adjustment. The height adjustment can be stopped at any time and thus individually adapted to needs.

[0044] Fig. Figure 8 shows a foldable and height-adjustable side armrest 19. Since the rear seat occupants can move towards the center of the vehicle to avoid being cramped at the edges, space is freed up towards the door. If the distance to the outside becomes too great, discomfort arises because the armrest in the door can no longer be reached. This is prevented by additional armrests 19 on the outside of the backrest. These are rotatably mounted and move into an optimal position along a rail when controlled by the control unit. As with the center armrests of the Fig. Individual height adjustment is possible with fine-tuning. The armrest (19) can also be retracted and integrated into the backrest. The headrest is divided into three sections and connected to the respective backrest sections on the left, center, and right. This allows the backrests to be tilted independently. The headrests are height-adjustable and can therefore be individually adapted to any body size. Viewed slightly from the side, the headrests appear very narrow, so the joint behind them remains visible. However, the padding thickness is significantly greater than that of the seat cushions, as there are no spring-loaded cylinders (1) behind them.

[0045] Fig. Figure 9 shows a vehicle seat arrangement in the rear of a vehicle with a backrest angle adjustable under stretched stretch material. The backrest is supported by individual backrest struts 14, which can be individually adjusted and have pneumatic cylinders 1. As with the seat cushion, a stretch material of a fabric cover 3 lies beneath the upholstery elements 13, which bridges the gaps between them when the upholstery elements 13 are deformed. The backrest angle is preferably infinitely adjustable and self-locking, so that the angle can be stopped at any time. Preferably, the side bolsters on the backrest struts 14 in the shoulder area are also individually adjustable. The upper end of the backrest struts near the shoulders rotates around its own axis. This rotates the uppermost pneumatic cylinder 1, which can then provide more or less lateral support.

[0046] Fig. Figure 10 shows a center table that can be extended by the control unit to provide storage space. This is primarily intended for use with only one occupant. However, it can also be used on one side, for example, if two people are sitting directly next to each other and one armrest (Figure 19) is folded up. A folding table is located under each armrest on the left and right outer edges. If less space is needed, only one side can be extended. When both sides are extended, the folding tables can be joined in the middle to create a large storage area. This storage area is then as wide as the entire central single seat.

[0047] Fig.Figure 11 shows another vehicle seating arrangement in the rear of a vehicle with a special seat belt buckle 17. Due to the various scenarios, it is possible to change the seating position as needed. For example, if two people slide inwards on the seat cushion, the position of the seat belts and buckles 17 would no longer be correct. To ensure the safety of the occupants at all times, the position of the buckles 17 can be changed. The adjustment is automated on a rail. A self-locking spindle drive ensures that the buckles 17 cannot move unintentionally. The seat belts are accordingly made longer to compensate for the increased distance. Reference symbol list 1 pneumatic cylinder 3 fabric cover 5 supply providers 7 main supports 9 secondary beams 11 retaining plates 13 Upholstered element 14 backrest struts 15 telescopic spindle 17 Seatbelt buckle 19 Armrest

Claims

[1] System for adjusting a seat cushion surface profile of a vehicle seat arrangement, comprising a supporting basic structure with a plurality of pneumatic cylinders (1) designed and arranged for deflecting a seat cushion surface and which can be individually controlled by a control unit of the system, wherein the pneumatic cylinders (1) are arranged in a planar distribution over the seat cushion surface, and wherein respective seat cushion surface-side ends of the pneumatic cylinders (1) have a respective interface to an elastically flexible fabric covering (3) of a seat cushion supported on the basic structure. [2] System according to claim 1, wherein the basic structure has at least one supply carrier (5), main carriers (7) and secondary carriers (9) arranged on the at least one supply carrier (5), wherein the secondary carriers (9) form branches of the main carriers (7), and wherein pneumatic lines coming from the supply carrier (5) are guided in and / or on the main carriers (7) and secondary carriers (9) to supply the pneumatic cylinders (1) with air. [3] System according to one of the preceding claims, wherein a respective interface to the elastically flexible fabric cover (3) of the seat cushion has a ball head with a retaining plate (11) arranged thereon, wherein the respective retaining plate (11) supports a respective cushion element (13), wherein the fabric cover (3) of the seat cushion is located between the respective cushion element (13) and the associated retaining plate (11), such that a plurality of adjacent cushion elements (13) with the fabric cover (3) arranged below the cushion elements (13) form the seat cushion. [4] System according to claim 3, wherein each cushion element (13) has an integrated air cushion which is connected to a pneumatic line to provide a massage function by applying a temporal pattern to the air filling of the air cushion. [5] Vehicle seating arrangement with a system according to one of claims 1 to 4, comprising a leg rest, a seat surface and a backrest, at least one of which is equipped with a seat cushion surface and the system for adapting the seat cushion surface profile of the seat cushion surface. [6] Vehicle seat arrangement according to claim 5, wherein the backrest has mainly vertically extending backrest struts (14) which can be rotated individually and independently of each other relative to an axis of rotation along a transverse axis of the vehicle. [7] Vehicle seat arrangement according to claim 6, wherein at least two backrest struts (14) arranged in shoulder width are rotatable relative to each other in order to adjust side bolsters for adjustable lateral support. [8] Vehicle seat arrangement according to one of claims 5 to 7, wherein the leg rest is connected to a telescopic spindle (15) and a shearing mechanism to selectively lengthen or widen the leg rest upon control of the control unit. [9] Vehicle seating arrangement according to one of claims 5 to 8, comprising at least one seat belt buckle (17) that can be moved in the transverse direction of the vehicle. [10] Vehicle seat arrangement according to one of claims 5 to 9, comprising an armrest (19) adjustable along at least a part of a height of an outside of a backrest, wherein the armrest (19) is rotatable from a horizontal to a vertical position and vice versa.

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