Vehicle seat for vehicle

Abstract

The invention relates to a vehicle seat for a vehicle, comprising: a first seat part, which can be adjusted relative to a second seat part; an adjustment device (9) configured to adjust the first seat part relative to the second seat part; an electromotive drive device (16) for driving the adjusting device (9); wherein the adjusting device (9) has a spindle shaft (20), a nut accommodated on the spindle shaft (20), an outer profile (12) and an inner profile (14); wherein the inner profile (14) is accommodated in the outer profile (12) in a longitudinally adjustable manner, and one of the profiles is connected to the spindle shaft (20) and the other profile is connected to the nut (22). The profiles (12, 14) are closed or open, and a sliding bearing (24, 25) is arranged between the profiles (12, 14).

Description

Technical Field

[0001] The invention relates to an adjustable vehicle seat, in particular for a motor vehicle. Background Art

[0002] Vehicle seats usually have different adjustment options. Therefore, a longitudinal adjustment of the vehicle seat is usually provided in vehicles, in particular by means of an upper rail fastened to a lower rail of the base plate. In addition, the seat height of the seat cushion relative to the base plate or the rail system and, for example, the seat slope or inclination of the seat cushion relative to the base plate or the rail system can be adjusted. Motorized adjustment offers greater comfort for the user, but can lead to packaging problems, in particular, with regard to the arrangement of the electric motor. Different motorized adjustments are known, for example using swivel drives, scissor systems and spindle drives, in which a nut on a threaded rod or spindle rod is longitudinally adjusted.

[0003] US2765024 A describes a seat adjustment mechanism having actuators arranged opposite to each other for longitudinal adjustment of a vehicle seat, wherein each actuator comprises an elongated tube having a first collar with an annular groove, wherein a shaft extends through the first collar into the tube, a thread is formed on the shaft, and a coupling element between the shaft and the first collar is adjustably received on the thread. Here, two motorized adjustment devices arranged opposite to each other are provided.

[0004] US 3043551 A shows a vehicle seat adjustment mechanism having a base bracket, a seat bracket and a pair of spaced-apart seat adjustment devices, which are pivotally mounted on the base bracket and the seat bracket, respectively, wherein the pivot axes of one of the adjustment devices are constructed to be parallel to each other and the pair of pivot axes of the other adjustment device are oriented perpendicular to each other.

[0005] DE 100 00 906 C1 discloses a motor vehicle seat having a frame part with a spindle drive having a spindle and a spindle nut cooperating with the spindle, wherein the spindle drive acts on the frame part and can realize different adjustment positions. In this case, the spindle is at least partially surrounded by a stop element, which can realize the stop of the spindle drive to prevent the spindle from bending transversely to the spindle axis in the event of a crash. The stop element is in particular designed as a stop sleeve that surrounds the spindle drive at least over a part of its length.

[0006] Such an adjustment is usually relatively complex and requires corresponding installation space for the adjustment mechanism and the electric drive. The individual elements of the adjustment device should also be designed to be sufficiently strong to withstand the loads that occur, in particular bending moments and forces.

[0007] EP 2 985 174 A1 shows a sliding device for a vehicle seat, which has a lower rail for fixing to the vehicle floor and an upper rail, the upper rail being mounted on the underside of a seat component, wherein a friction-reducing component is mounted between the two rails, the component having a sliding contact component which in turn has a plurality of components.

[0008] WO 2016 / 059108 A1 discloses a linear electric motor structure and a sliding member for the linear electric motor structure, wherein a first container is mounted on a seat, a second container is mounted on a surface, the two containers are adjustable in a longitudinal direction relative to each other, and the sliding member is arranged between the containers, wherein the sliding member has a low friction material.

[0009] DE 25 49 711 A1 describes a holder for a movable vehicle seat, which consists of a guide rail fixed to the vehicle and a running rail fixed to the seat, wherein the running rail can be moved along the guide rail with a plastic sliding body inserted in between, and wherein the guide rails each have an upwardly open U-shaped profile.

[0010] DE 10 2011 081 107 A1 describes an adjustment device for adjusting an adjustment component of a vehicle, the adjustment device comprising a first and a second guide rail, which are supported in a manner that allows movement relative to each other in a longitudinal direction and each have a base and at least one branch extending from the base and an edge section, wherein a supporting element is provided in the region of the edge section.

[0011] DE 10 2014 219 206 A1 discloses a vehicle seat having two lower rails and two upper rails, which are respectively mounted on each other in a sliding manner, wherein an electric drive mechanism and two retaining members and two buffer elements are provided. The two buffer elements are located between the upper surface of an upper rail and the corresponding retaining member, wherein the electric drive mechanism drives a shaft and a lead screw for relative adjustment.

[0012] DE 10 2019 120 914 A1 describes a seat rail mechanism for a vehicle, wherein the seat rail mechanism is provided for installation under a vehicle seat and for adjustment in a forward and rearward direction and has a single seat rail mechanism with a hook guide for fixing.

[0013] DE 10 2021 214 947 A1 describes a sliding block for a seat rail pair for a longitudinal adjustment mechanism, the sliding block having a base part with an upper sliding surface and a lower sliding surface, one of the sliding surfaces being fixedly constructed and the other sliding surface being constructed to have different strengths and / or flexibility in some areas.

[0014] DE 10 2015 112 029 A1 shows a vehicle seat having a floor anchoring, a seat surface and a backrest part, wherein at least two variable-length adjustment elements are arranged between the floor anchoring and the seat surface.

[0015] US2,765,024 A discloses a vehicle seat adjustment mechanism, which has a base bracket, a seat bracket and a pair of spaced-apart seat adjustment devices, wherein the seat adjustment devices are pivotally mounted on the base bracket and the seat bracket, respectively, wherein a pair of pivot axes of one of the adjustment devices are spaced-apart and mounted parallel to a pair of pivot axes of the other adjustment device.

[0016] US 6,637,816 B2 describes a seat system with a delay sensor, which senses a delay or deceleration of a vehicle. Here, a pivot mechanism for pivoting a seat assembly is provided, wherein a control unit is connected to the delay sensor and can operate the pivot mechanism according to a detected delay event.

[0017] KR 20-0440263Y1 describes another adjustable vehicle seat. Summary of the invention

[0018] The object of the present invention is therefore to provide an adjustable vehicle seat for a vehicle which allows a reliable adjustment and a high stability with little effort and a small installation space.

[0019] This object is achieved by a vehicle seat according to claim 1. The dependent claims describe preferred developments.

[0020] The vehicle seat thus has at least one motorized adjustment device, which has a spindle drive with a spindle or a threaded rod, a spindle nut received on the spindle, and two profiles. The two profiles are nested in one another and can be adjusted relative to one another in their longitudinal direction by the spindle drive. A sliding bearing is arranged between the two profiles.

[0021] Thus, an adjustment method is formed which, on the one hand, is very space-saving and can also be formed at low cost. The two profiles nested in one another allow telescopic adjustment in the longitudinal direction or axial direction of the profiles, wherein the spindle is preferably accommodated in the inner profile, thereby achieving a very compact design. Preferably, the structure comprises an outer profile, an inner profile accommodated in the outer profile via a sliding bearing, and a spindle accommodated in the inner profile.

[0022] This design is therefore compact and space-saving and can also be manufactured at low cost and expense. In addition, it can withstand high adjustment forces, since longitudinal adjustment of the two profiles relative to one another is provided, without any or no associated moments and bending forces between the profiles. The adjustment device is therefore rigid and, in principle, does not require any additional reinforcement elements other than the two profiles. The connection of the adjustment device can also be realized relatively simply and with little effort, in that the two seat parts of the vehicle seat to be adjusted are connected to the profiles directly or indirectly via other means, such as, for example, hinges.

[0023] The electric drive is preferably arranged outside the profile and in particular has an electric motor and a transmission connected downstream. As a result, these profiles can be constructed sufficiently strong, compact and narrow without accommodating an electric motor. The transmission preferably enables a suitable reduction in speed of the electric motor. Preferably, the gearbox or housing of the transmission is directly connected to one of the profiles and thus forms a fixed unit, so that the fixed unit is formed by the adjustment device, the gearbox housing and the support (e.g. a crossbeam) accommodating the motor, which can be assembled in a vehicle seat on one of the two seat parts to be adjusted. The other of the two profiles can be fixed accordingly on the other seat part, so that by the longitudinal adjustment of the two profiles, a suitable adjustment of the seat parts or seat elements can be formed, such as a linear adjustment or a pivotable adjustment of the seat parts relative to each other.

[0024] The nut received on the spindle is advantageously received directly fixedly, in particular form-fittingly and / or by crimping, in one of the profiles, in particular the outer profile, so that a translational longitudinal adjustment of the profile together with the nut takes place directly when the threaded spindle is rotated.

[0025] Another advantage is the simple and reliable constructability of the bearings between the individual components, in particular between the profiles. Thus, complex ball bearings or roller bearings with additional components and high costs are advantageously not required. Due to the direct longitudinal adjustment, a simple plain bearing can be arranged between the profiles without or without relevant bending moments and torsions. The two profiles can be designed with a suitable fit so that, for example, only one or more plain bearings are provided in each case at the front and rear bearing points or regions, which can reliably absorb the forces occurring in the longitudinal direction. Such plain bearings have cost advantages over ball bearings and are also simple to mount and have a high degree of durability.

[0026] The two profiles can be designed to be closed, which makes them harder and better protects the interior, wherein, for example, they can accommodate sliding bearings made of plastic; in addition, open profiles can also be provided, which require less material and allow better access to the interior.

[0027] The motor with the motor shaft can in particular be arranged completely or substantially perpendicularly or orthogonally to the longitudinal axis of the adjusting device and thus perpendicularly to the spindle axis. As a result, the electric motor with the supporting support can be mounted at a suitable position in the motor vehicle seat. Thus, in a guide rail system for longitudinal adjustment of the vehicle seat, the crossbeam with the electric motor can be arranged below the seat cushion and thus do not further affect the narrow installation space in the area of ​​the guide rail system. In other adjustments, the crossbeam with the electric motor can also be arranged, for example, below the seat cushion or at another suitable position of one of the adjustable seat parts.

[0028] Furthermore, by connecting the motor at right angles to the motor shaft to the adjusting device, it is also possible to construct a common electric motor for two parallel adjusting devices, which can thus be reliably adjusted parallel to one another, in particular on the left and right side of the vehicle seat. Thus, two parallel adjusting devices with a common electric motor can be provided for all adjustments. This advantageously forms a motor bridge, which connects two adjusting devices that are constructed parallel to one another and are spaced apart from one another and thus forms a compact unit.

[0029] As an alternative thereto, there are also single-rail solutions, in which a single adjustment device is therefore provided with exactly one pair of profiles.

[0030] A further advantage is the modular design or the wide availability of the adjusting device for different adjustment types, so that the same or the same type of adjusting device can be installed at different positions of the vehicle seat.

[0031] The regulating device can be used in particular for:

[0032] Longitudinal adjustment of the upper rail relative to the lower rail,

[0033] Height adjustment or inclination adjustment of the seat cushion relative to the rail system or upper rail, and

[0034] A footrest is adjusted relative to the seat cushion.

[0035] Furthermore, the spindle drive allows self-locking adjustment and thus a high degree of safety.

[0036] The seat cushion can be adjusted relative to the rail system or the vehicle floor in particular by means of a pair of front adjusting devices and a pair of rear adjusting devices. This arrangement allows, on the one hand, an adjustment of the inclination or pivoting of the seat cushion relative to the rail system by actuating the front and rear adjusting devices differently. Thus, for example, only the two front adjusting devices can be moved out to pivot the vehicle seat rearwards, and correspondingly only the rear adjusting devices can be moved out to pivot the vehicle seat forwards. Furthermore, this also allows height adjustment by actuating the front and rear adjusting devices simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention is explained in detail below with the aid of several embodiments with the aid of the accompanying drawings.

[0038] Figure 1 shows a side view of a vehicle seat in a basic position;

[0039] Figure 2 The vehicle seat is shown in a rearwardly pivoted comfort position;

[0040] Figure 3 Show Figure 1 The vehicle seat is in a comfortable position pivoted forward;

[0041] Figure 4 showing the longitudinal adjustment of the vehicle seat on the lower rail;

[0042] Figure 5 An adjustment of a footrest of a vehicle seat is shown;

[0043] Figure 6 The adjusting device is shown in the retracted state of the profile;

[0044] Figure 7 An adjustment system with two lateral adjustment devices and an intermediate motor according to one embodiment is shown in a perspective bottom view;

[0045] Figure 8 Shown in a three-dimensional top view Figure 7 The regulation system in

[0046] Fig. 9 A section through the adjustment system in the region of the threaded spindle is shown;

[0047] Fig.10 A bottom view of the adjustment system with two lateral adjustment devices is shown;

[0048] Fig.11 A rear view showing the adjustment system;

[0049] Fig.12 shows a longitudinal section of the adjustment device in the retracted state;

[0050] Fig.13 A section perpendicularly through the longitudinal axis of the adjustment device is shown;

[0051] Fig.14 A regulating system with a motor and only one regulating device is shown;

[0052] Fig.15 The illustration of the retracted adjusting device and the exploded illustration of the adjusting device are shown.

[0053] Figures 16 to 22 A further embodiment of an adjustment system with two lateral adjustment devices and an intermediate motor is shown in different views;

[0054] Fig.16 The adjustment system is shown in a three-dimensional top view, corresponding to Figure 8 ;

[0055] Fig.17 A bottom perspective view of the adjustment system is shown, corresponding to Figure 7 ;

[0056] Fig.18 , 19 Show Fig.16 , 17 A side view of the adjustment system;

[0057] Fig. 20 Shown in bottom view Figures 16 to 19 The regulation system;

[0058] Fig.21 A front view showing the adjustment system;

[0059] Fig. 22 A top view of the adjustment system is shown. DETAILED DESCRIPTION

[0060] The vehicle seat 1 has a plurality of seat parts which are adjustable relative to one another by means of different adjustment methods. Figure 1 The vehicle seat 1 is shown in its basic position with a longitudinal rail system 2 , a seat cushion 3 , a backrest 4 and a headrest 5 . Figure 1 The vehicle seat 1 shown can be adjusted in various ways, as shown in FIG. Figures 2 to 5 As described. On the one hand, the seat cushion 3 can be adjusted in inclination or pivoted relative to the longitudinal rail system 2; for this purpose, two front adjustment devices 6 (i.e., as front feet) and two rear adjustment devices 8 (i.e., as rear feet) are respectively arranged between the seat cushion 3 and the longitudinal rail system 2 or the upper rail 2a of the longitudinal rail system 2. Figures 1 to 5 The side view of FIG. 1 shows in particular the respective right-hand adjustment devices 6 and 8. Figure 2 , the front adjusting device 6 is telescopically pulled apart from each other, and the vehicle seat 1 is tilted backward by adjusting the front adjusting device 6. Accordingly, the rear adjusting device 8 is adjusted according to Figure 3 The vehicle seat 1 can be tilted forward, and the rear adjustment devices are telescopically pulled apart from each other. Accordingly, the vehicle seat 1 can be adjusted in height by operating both the front adjustment device 6 and the rear adjustment device 8, without the need for inclination adjustment or by superimposing the inclination adjustment.

[0061] Figure 4 The longitudinal adjustment of the vehicle seat 1 is shown, wherein the upper rail 2a is adjusted relative to the lower rail 2b installed in the vehicle on the floor side of the vehicle by an adjustment device (not shown in detail here) which is arranged directly on or in the longitudinal rail system. Figure 5 The adjustment of the footrest 10 by means of a separate footrest adjustment device 11 is shown, which is arranged between the footrest 10 and the seat cushion 3. Thus, a unified adjustment device 9 can be used for the vehicle seat 1 in the Figures 1 to 5 Different adjustments shown in .

[0062] The adjusting devices 6, 8, 11 can be constructed according to different embodiments. Figures 6 to 15An adjusting device 9 is shown with an outer profile 12 and an inner profile 14 placed in the outer profile 12. The profiles 12, 14 are preferably designed as closed profiles and therefore have high rigidity; preferably, they can be designed as quadrilateral profiles as shown. A front sliding bearing 24 and a rear sliding bearing 25 are arranged between the profiles. The adjustment is carried out in a motor-driven manner by an electric drive, which is formed by an electric motor 16 and a transmission 18 connected downstream, wherein the transmission 18 drives or rotates a spindle rod 20, i.e. a rod with a thread. Advantageously, on each side, the transmission housing 19 of the transmission 18 rests on the respective adjusting device 9, that is, the transmission housing 19 forms a horizontal gearbox. The spindle rod 20 is preferably supported on or in the inner profile and receives a nut 22 with its thread, which is received in the outer profile 12. Therefore, the spindle rod 20 is driven and rotated by the electric motor 16 and the transmission device 18, so that the nut 22 fixedly accommodated in the outer profile 12 travels on the spindle rod 20 in the longitudinal direction, thereby realizing the longitudinal adjustment of the inner profile 14 relative to the outer profile 12. The nut 22 is fixedly accommodated in the outer profile 12, for example, by form fit and / or by crimping.

[0063] The spindle rod 20 is accommodated at its rear end in a transmission 18 , via which it is driven, and is supported further forward in a spindle bearing 23 , for example in the inner profile 14 .

[0064] exist Figures 7 to 12 2 shows an adjustment system 7 as a bridge-type structure, wherein a central electric motor 16 is accommodated in a crossbar 26 and drives two lateral, parallel adjustment devices 9 via two lateral transmissions 18. The crossbar 26 with the electric motor 16, the two laterally protruding motor shafts 17 and the transmission 18 can be arranged above or below the adjustment devices 9, such as from Figure 8 and Fig. 9 As can be seen in Figure 7 , 8 , 10 and 11, the electric motor 16 can therefore act as a motor bridge to drive the two adjustment devices 9 on both sides thereof; however, according to Fig.14 , the electric motor 16 can also drive only one adjusting device 9. Therefore, Figure 7 Preferably, an adjustment system 7 is shown which consists of two adjustment devices 9 and a motor bridge which comprises a cross member 26 , an electric motor 16 , two laterally projecting motor shafts 17 and a gear 18 .

[0065] Fig.12The connection of the spindle rod 20 with its front thread in the nut 22 of the outer profile 12 and the connection of the rear spindle rod receptacle 30 in the transmission 18 and thus fixed to the inner profile 14 is shown, so that these connection points 28 and 30 are adjustable relative to each other in the longitudinal direction. Thus, both the forward adjustment and the rearward adjustment are electrically supported, which is different from, for example, a spring-supported return. In principle, a self-locking adjustment is also achieved, because the profile 12 and the profile 14 cannot be adjusted relative to each other without an active rotation of the spindle rod 20. Fig.12 and Fig.13 The arrangement of the sliding bearings 24, 25 between the profiles 12 and 14 and the reception of the spindle 20 in the rear spindle connection 30 and the front spindle bearing 23 in the inner profile 14 are shown. The motor shaft 17 driven by the electric motor 16 can be designed in particular as a so-called flex shaft.

[0066] Since only longitudinal adjustment is performed and no bending moments or lateral forces occur between the spindle rod 20 and the nut 22, simple sliding bearings 24 and 25 can be provided. Therefore, ball bearings or other more complex bearings for absorbing greater forces and bending moments are not required.

[0067] The cross member 26 with the electric motor 16 and the motor shaft 17 can be arranged—depending on the intended adjustment—at a suitable location, for example below the seat cushion 3 ; the telescopic adjustment device 9 itself can be designed to be compact, space-saving and low-mass.

[0068] Figures 16 to 22 A further embodiment of a control system 7 is shown, which has two control devices 9 having a Figures 6 to 19 Here, in particular, the two transmission housings 19 which are formed laterally on the crossbeam 26 and which rest on the adjusting device 9 are designed to be smaller in the vertical direction Z in order to form a narrower package in the vertical direction Z. For this purpose, the transmission housing 19 is advantageously designed to be longer in the longitudinal direction X, as can be seen in particular from Fig.16 and 22 As learned in.

[0069] Furthermore, the spindle fastening 29 is arranged on the lateral outer side, ie in the lateral transverse direction Y, of a profile of the adjusting device 9 , for example a lower profile of the adjusting device 9 .

[0070] Anti-twist stops 31 are provided on the sides of the adjustment device 9 to prevent rotation in the event of a crash, since they hold the gear 18 or the gear housing 19 , for example as embossings or projections (eg in relief) on or in the side of the profile.

[0071] Furthermore, a rotation stop 33 is provided for the event of a crash, which protrudes laterally or in the transverse direction Y from the profile of the adjustment device 9 and holds the entire transmission mechanism and advantageously the entire adjustment system 7 against rotation during a crash.

[0072] Furthermore, in this embodiment the number of components or assemblies is advantageously reduced and in particular can be accommodated in a single fixed profile design.

[0073] Reference numerals list

[0074] 1 Vehicle Seat

[0075] 2 Longitudinal guide system

[0076] 2a Upper rail

[0077] 2b Lower rail

[0078] 3 Seat cushions

[0079] 4 Backrest

[0080] 5 Headrest

[0081] 6 Front adjustment device

[0082] 7. Adjustment system

[0083] 8 Rear adjustment device

[0084] 9 Adjustment device

[0085] 10 Pedals

[0086] 11 Foot pedal adjustment device

[0087] 12 Exterior profile

[0088] 14 Inner profile

[0089] 16 Electric Motor

[0090] 17 Motor shaft, e.g. flexible shaft

[0091] 18 Transmission

[0092] 19 Transmission housing, in particular as lateral support for cross member 26

[0093] 20 Spindle rod

[0094] 22 Nut

[0095] 23 Spindle bearing 23 of spindle 20 in inner profile 14

[0096] 24 Sliding bearing between profiles 12, 14

[0097] 25 Sliding bearing between profiles 12, 14

[0098] 26 Beam

[0099] 28 Thread of the spindle rod 20

[0100] 29 Spindle fixture

[0101] 30 Rear spindle rod receiving portion for driving the spindle rod 20

[0102] 31 Anti-rotation stop, anti-rotation sheet

[0103] 33 Anti-rotation stop

[0104] X vertical direction

[0105] Y horizontal direction

[0106] Z vertical direction

Claims

1. A vehicle seat (1) for a vehicle, wherein: The vehicle seat (1) comprises: a first seat part (3, 2a) which is adjustable relative to the second seat part (2, 2b); an adjustment device (9, 6, 8, 11) configured to adjust the first seat part (3, 2a) relative to the second seat part (2, 2b); An electric drive device (16, 18) for driving the adjusting device (9); The adjusting device (9) comprises a main shaft rod (20), a nut (22) received on the main shaft rod (20), an outer profile (12) and an inner profile (14); wherein the inner profile (14) is accommodated in the outer profile (12) in a longitudinally adjustable manner, and one of the profiles is connected to the spindle rod (20) and the other profile is connected to the nut (22), It is characterized in that Sliding bearings (24, 25) are arranged between the profiles (12, 14).

2. The vehicle seat (1) according to claim 1, characterized in that The electric drive (16, 18) comprises an electric motor (16) and a transmission (18) having a transmission housing (19). The transmission housing (19) is mounted on the inner profile (14) and / or the nut (22) is connected to the outer profile (12).

3. The vehicle seat (1) according to claim 2, characterized in that The transmission housing (19) and / or the nut (22) are received in or on the profile (12, 14) in a form-fitting manner, in particular by deformation or crimping of the profile (12, 14).

4. The vehicle seat (1) according to any one of the preceding claims, characterized in that The sliding bearings (24, 25) are arranged at the front and rear support points between the profiles (12, 14).

5. The vehicle seat (1) according to any one of the preceding claims, characterized in that The profiles (12, 14): - is designed as a closed profile, for example a quadrilateral profile, in particular for a sliding bearing (24, 25) made of plastic, or - is designed as an open profile, in particular as an open quadrilateral profile.

6. The vehicle seat (1) according to any one of the preceding claims, characterized in that The adjusting device (9) is constructed as a concentric arrangement of the following components: External profile (12), Inner profile (14), Sliding bearings (24, 25) arranged between the inner profile (14) and the outer profile, and A spindle rod (20) having a nut (22) is arranged in the inner profile (14).

7. The vehicle seat (1) according to any one of the preceding claims, characterized in that The electric drive (16, 18) is arranged with its motor shaft (17) substantially orthogonally to the profiles (12, 14) and the threaded spindle (20).

8. The vehicle seat (1) according to any one of the preceding claims, characterized in that The adjusting device (9) has exactly one outer profile (12) and one inner profile (14), in particular as a single-rail adjusting device.

9. The vehicle seat (1) according to claim 7, characterized in that Two parallel adjusting devices (9) are provided, the electric drive devices (16, 18) being accommodated in or on a crossbeam (26) which extends at right angles to the profiles (12, 14). The crossbeam (26) forms an adjustment system (17) with the electric drive (16, 18) and the parallel adjustment device (9).

10. The vehicle seat (1) according to claim 9, characterized in that Two parallel adjusting devices (9) are provided, which are driven by a common electric drive (16, 18). The crossbeam (26) is arranged as a motor bridge between the adjustment devices (9). The electric drive devices (16, 18) drive a motor shaft respectively and / or a common motor shaft (17) towards two adjustment devices (9).

11. The vehicle seat (1) according to claim 10, characterized in that The transmission (18) is formed on both sides between the motor shaft (17) and the spindle rod (20) by lateral receptacles of the motor bridge, which are advantageously placed on the lateral adjustment device (9), in particular on a profile of the lateral adjustment device.

12. The vehicle seat (1) according to claim 11, characterized in that A stamping or embossing (31) is formed in the lateral profile, in particular for forming a rotation-proof plate, in particular for fixing the transmission.

13. The vehicle seat (1) according to any one of claims 9 to 12, characterized in that Anti-rotation stops (33) are provided on the sides of the parallel adjustment devices (9) and are arranged in such a way that in the event of a collision they prevent the adjustment system (7) and / or the adjustment device (9) from rotating, for example by stopping in the area of ​​the vehicle or a vehicle seat.

14. The vehicle seat (1) according to any one of the preceding claims, characterized in that The regulating device (9) is arranged on - a longitudinal guide system (2), in particular an upper guide rail (2a) of the longitudinal guide system (2), and - between the seat cushions (3) of the vehicle seat (1), The utility model is used for adjusting the seat height and / or the seat inclination of the seat cushion (3) relative to the longitudinal guide rail system (2).

15. The vehicle seat (1) according to claim 14, characterized in that A pair of front adjustment devices (6) and a pair of rear adjustment devices (8) are provided between the longitudinal rail system (2) and the seat component (3), wherein the inclination of the seat cushion (3) is adjusted by operating only the front adjustment devices (6) or the rear adjustment devices (8), and By operating the rear adjustment device and the front adjustment device (6, 8), the seat height of the seat cushion (3) can be adjusted relative to the longitudinal guide rail system (2).

16. The vehicle seat (1) according to any one of the preceding claims, characterized in that At least one adjustment device (9), in particular a pair of adjustment devices (9), is arranged between an upper rail (2a) of a longitudinal rail system (2) and a lower rail (2b) of the longitudinal rail system (2) to be fixed on the floor in the vehicle (1) for longitudinal adjustment of the vehicle seat (1).

17. The vehicle seat (1) according to any one of the preceding claims, characterized in that At least one adjustment device (11), in particular a pair of adjustment devices (11), is arranged between a seat cushion (3) and a footrest (10) of the vehicle seat (1) for pivotably adjusting the footrest (10).

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