Vehicle seat

Abstract

The invention relates to a vehicle seat (1) comprising at least one seat component (2) which has a support structure (3) and two lateral parts (5, 6) molded onto a seat surface (4). The at least one seat component (2) has a width adjustment mechanism (7) in order to adjust the width of the seat surface (4) of the seat component (2) and an angle adjustment mechanism (8), which is coupled to the width adjustment mechanism (7), in order to adjust the adjustment angle of at least one lateral part (5, 6) of the seat component (2).

Description

[0001] vehicle seat

[0002] Vehicle seats in vehicles usually have several seat components, in particular a seat cushion (seat upholstery), possibly with laterally molded side bolsters, and a seat back or backrest (back upholstery), possibly with laterally molded side bolsters.

[0003] To stabilize the vehicle seat, particularly in connection with forces acting on the vehicle seat during operation of the vehicle, the seat components of the vehicle seat often also have a supporting structure.

[0004] From DE 10 2007 047 840 A1 a seat device for a vehicle is known in which side support sections of the seat device can be moved predictively inwards and outwards by a drive depending on the course of the road.

[0005] DE 102007 009 891 A1 describes an adjustment device for adjusting a side bolster of a seat. This adjustment device comprises an adjustment element to be coupled to the side bolster, support means for mechanically supporting the adjustment element, and an inflatable bladder for positioning the adjustment element relative to the support means during adjustment of the side bolster.

[0006] DE 102014210 790 A1 describes a vehicle seat assembly with a cushion that can be folded for entering and exiting the vehicle. The cushion extends laterally from either a seat base or a backrest of the vehicle seat and has a cushion support with a hinge arrangement, an abutment element, and an engagement surface arranged therebetween. A spring-loaded dynamic element coupled to either the backrest or the seat base can be moved toward a folded position for entering and exiting the vehicle. DE 202004 013 668 U1 discloses a motor vehicle seat that has adjustable side bolsters on the seat part and / or on the backrest.The length and orientation of the side bolsters in relation to the central seating area and / or the backrest area can be changed by combined adjustment of the side bolsters, in particular by means of a combined linear and rotary guide, in order to produce a controlled track movement.

[0007] Other relevant publications are DE 102016204 067 A1 and DE 196 05 779 C2.

[0008] The generic JP 2005206 027 A further discloses a vehicle seat with at least one seat component having a supporting structure and two side parts formed on a seat surface, wherein the at least one seat component has a width adjustment mechanism for adjusting the width of the seat surface of the seat component and an angle adjustment mechanism coupled to the width adjustment mechanism for adjusting the angle of at least one side part of the seat component, wherein the width adjustment mechanism of the respective seat component has two pairs of cross struts arranged at a distance from one another and connected to the supporting structure of the seat component, each pair having two cross struts, wherein a rigid part of a respective cross strut is connected to the supporting structure of the seat component and a movable part of a respective cross strut, which can be moved by a specific travel path, is connected to one of the two side parts of the seat component.and that the movable part of the respective cross strut has a joint which cooperates with a deflection element attached to the rigid part of the respective cross strut to form the angle adjustment mechanism during the movement of the cross strut, wherein the deflection element is arranged on the rigid part of the respective cross strut at a deflection position corresponding to a characteristic travel path of the movable part of the respective cross strut.

[0009] The invention is based on the object of specifying a vehicle seat in which a support function and / or holding function for a vehicle occupant located on the vehicle seat is realized in a simple manner with advantageous properties.

[0010] This object is achieved according to the invention by a vehicle seat having the features recited in claim 1. Advantageous developments of the vehicle seat according to the invention are part of the further claims.

[0011] In the vehicle seat of a vehicle according to the invention, a width adjustment mechanism, preferably operated by an electric motor, is used to change the width of the seat surface of certain seat components of the vehicle seat by narrowing or widening the seat surface (often also referred to as the seat mirror), which is located between two side parts of the respective seat component.

[0012] In particular, a change in the width of the seat surface of the seat cushion of the vehicle seat, which has two molded side cheeks, is effected by narrowing or widening the seat surface of the seat cushion and / or a change in the width of the seat surface of the seat back of the vehicle seat, which has two molded side cheeks, is effected by narrowing or widening the seat surface of the seat back.

[0013] This width adjustment mechanism for adjusting the width of the seat surface of the respective seat component is coupled to an angle adjustment mechanism, by means of which the angle of at least one side part molded onto the seat surface of the respective seat component can be adjusted using a folding mechanism. In particular, the width adjustment mechanism of the seat surface of the respective seat component is coupled to the angle adjustment mechanism or folding mechanism for the two side parts of the respective seat component via a positive guide.

[0014] This angle adjustment mechanism or folding mechanism for folding the two side parts of a seat component only becomes effective when a certain dimension is exceeded when adjusting the width of the seat surface of the respective seat component, ie the angle adjustment mechanism for folding the two side parts of a seat component is only initiated when a certain travel distance is exceeded when adjusting the width of the seat surface of the respective seat component.

[0015] The width adjustment mechanism of each seat component comprises two pairs of cross braces, each with two cross braces, arranged at a distance from one another and connected to the supporting structure of the seat component. The cross braces are connected to the supporting structure of the seat component by a rigid part and to one of the two side parts of the seat component by a movable part that can be moved over a specific travel distance. Thus, two cross braces are connected to one side part of the seat component, which is molded onto the seat surface of the seat component, and two cross braces are connected to the other side part of the seat component, which is molded onto the seat surface of the seat component.The movable part of the respective cross brace has a joint, embodied, for example, as a swivel joint or hinge joint, which cooperates with a deflection element attached to the rigid part of the respective cross brace to form the angle adjustment mechanism during movement of the movable part of the respective cross brace. In particular, the angle adjustment mechanism is initiated and a folding process of the respective side part of the seat component is started when the joint attached to the movable part of the respective cross brace has reached a deflection position corresponding to a characteristic travel path of the movable part of the respective cross brace, at which the deflection element is arranged on the rigid part of the respective cross brace.

[0016] For example, this deflection position is determined and fixed by the positioning of the deflection element on the rigid part of the respective cross strut in such a way that the angle adjustment mechanism is initiated and the folding process of the respective side part of the seat component is started when the travel path of the movable part of the respective cross strut corresponds to one third of the total possible travel path of the movable part of the respective cross strut. Accordingly, over one third of the total possible travel path of the movable part of the respective cross strut, there is pure width adjustment or enlargement of the respective seat component, i.e. only a widening of the seat surface of the respective seat component, whereas over the remaining travel path of the movable part of the respective cross strut, there is width adjustment of the respective seat component and angle adjustment of at least one side part of the respective seat component.i.e. a widening of the seat surface of the respective seat component and a folding of the two side parts of the respective seat component.

[0017] This means that if the width of the seat surface of the seat component of the vehicle seat needs to be changed, the angle of the two side sections of the respective seat component can also be changed if necessary. This provides secure support for the entire torso or the entire body of a vehicle occupant sitting on the vehicle seat, thus providing stability right down to the shoulder and head area of ​​the vehicle occupant, which is particularly advantageous in the event of a vehicle crash. The close contact between the body of a vehicle occupant sitting on the vehicle seat and the respective seat component also improves the heat transfer from a seat heater provided for the respective seat component to the vehicle occupant, thereby increasing the efficiency of the seat heater.Furthermore, the positions or angle settings set by a width adjustment of the respective seat component and the angle adjustment of the two side parts of the respective seat component remain in place until a different position or angle setting is specified by a subsequent activation of the width adjustment mechanism.

[0018] If there is a corresponding change in width to reduce the size of the respective seat component, i.e. to reduce the seat surface of the respective seat component, these side parts of the seat component are then folded away or folded back in the opposite way to the folding process of the side parts of the respective seat component when the side parts of the seat component are folded in.

[0019] To implement the angle adjustment mechanism or folding mechanism, the respective seat component preferably has two longitudinal struts arranged on a seat half of the respective seat component, as well as a plurality of elastic tensioning elements oriented parallel to the respective cross struts of the cross strut pairs and designed, in particular, as springs, with a specific elasticity. These elastic tensioning elements are connected at one end to a longitudinal strut connected to the rigid part of the cross struts and thus non-movable, and at the other end to a longitudinal strut connected to the movable part of the cross struts or to a longitudinal strut forming the outer contour of the side part of the seat component and thus foldable.

[0020] As a result, by means of the deflection element and the elastic tensioning elements, when the movable part of the cross struts is moved beyond the deflection position, a forced guidance of the movable part of the cross struts is achieved when the two side parts of the respective seat component are folded in.

[0021] Preferably, at least three such elastic tensioning elements are provided on each seat half of the respective seat component, for example, three or four springs with a defined spring strength distributed equidistantly on each seat half of the respective seat component. Advantageously, the elastic tensioning elements also form support points or support surfaces for the seat cushion of the respective seat component, for example, using springs as elastic tensioning elements, so that no separate spring cage is required for the respective seat component. The elasticity of the elastic tensioning elements, in particular the spring constant of elastic tensioning elements designed as springs, is selected such that they have predetermined properties with regard to seating comfort and angle adjustment.In particular, this sets a specific seat softness of the respective seat component of the vehicle seat and a specific hardness for the realization of the folding process of the two side parts of the respective seat component of the vehicle seat.

[0022] These elastic tensioning elements, which are particularly designed as springs, thus ensure, on the one hand, that a type of pincer movement takes place when the two side parts of the seat component of the vehicle seat are folded in, so that a vehicle occupant sitting on the vehicle seat is virtually clamped around by the two folded-in side parts. On the other hand, these elastic tensioning elements, which are designed as springs, ensure a certain softness of the seat cushion of the respective seat component of the vehicle seat and form a corresponding support surface for the seat cushion of the respective seat component of the vehicle seat.

[0023] In a further advantageous development of the invention, at least one such elastic tensioning element, in particular at least one elastic tensioning element designed as a spring, is arranged between the two longitudinal struts connected to the rigid part of the cross struts of a pair of cross struts, ie to the two longitudinal struts arranged adjacent to one another on each seat half of the seat component.

[0024] In a further advantageous development of the invention, an electric motor-driven adjustment drive for moving the movable part of the two cross struts of the respective cross strut pair is integrated into the width adjustment mechanism in each of the two cross strut pairs.

[0025] These two electromotive adjustment drives arranged centrally in the respective seat component are thus intended to implement the change in width of the respective seat component by narrowing or widening the seat surface of the respective seat component of the vehicle seat.

[0026] This results in, in particular, in a simultaneous and identical movement of the movable parts of all cross struts, ie on both seat halves of the respective seat component, a simultaneous and identical movement of the two movable parts of the respective cross struts, each arranged on a seat half of the respective seat component and connected to a molded-on side part of the respective seat component.

[0027] Preferably, an electric motor with a differential is provided in the respective adjustment drive. The adjustment drive can, in particular, have a movable spindle as a spindle drive, optionally also a gear unit with gears and a braking device.

[0028] The adjustment drive therefore moves the movable parts of the cross struts of the respective seat components simultaneously and in the same direction. The braking device can specifically control this movement of the movable parts of the cross struts on both halves of the vehicle seat component.

[0029] Thus, the side parts on both sides of the vehicle seat are folded in at the same time, in particular both side cheeks of the seat cushion of the vehicle seat or both side bolsters of the seat back of the vehicle seat are folded in at the same time.

[0030] In this case, it can be provided that when high acceleration forces of the vehicle occur or in the event of a crash, the two side parts of the seat components of the vehicle seat and thus the side parts on both sides of the seat components of the vehicle seat are automatically folded to their maximum extent.

[0031] Since, when the movable parts of the cross struts are moved, the width of the seat surface of the respective seat component changes, in that this seat surface is moved or shifted inwards towards the seat center or outwards away from the seat center, it can be provided that the seat component of the vehicle seat comprises an elastic material that is deformable in accordance with this movement of the seat surface of the seat component. This means that the seat surface of the respective seat component of the vehicle seat, in particular the seat surface of the seat cushion of the vehicle seat and / or the seat surface of the seat backrest of the vehicle seat, is preferably made of an elastic material that deforms in accordance with the travel path of the movable parts of the cross struts.The elastic material of the seat surface of the respective seat component of the vehicle seat thus also follows the change in width of the seat surface of the seat component of the vehicle seat by narrowing or widening the seat surface of the seat component of the vehicle seat and accordingly the movement of the seat surface of the seat component of the vehicle seat.

[0032] The width adjustment mechanism, and thus possibly also the angle adjustment mechanism dependent on it, can be activated manually by a vehicle occupant sitting in the vehicle seat by operating a control element. This control element can be designed, for example, as a switch, a button, or a pushbutton. By operating this control element, the width of the seat surface of the respective seat component of the vehicle seat and the angle of the side sections on both sides of the respective seat component of the vehicle seat can be individually adjusted by the vehicle occupant.

[0033] Alternatively, in an automatic mode, the activation of the width adjustment mechanism and thus, if applicable, also of the angle adjustment mechanism dependent on it is specified automatically, in particular by controlling a vehicle control unit connected to the vehicle seat. In automatic mode, the automatic activation of the width adjustment mechanism and thus, if applicable, also of the angle adjustment mechanism dependent on it occurs in particular as a function of acceleration forces acting on the vehicle and thus on the vehicle seat. In automatic mode, the respective width adjustment mechanism is controlled as a function of the sensor signal(s) from acceleration sensors and thus as a function of the current lateral acceleration and / or the current longitudinal acceleration of the vehicle, to simultaneously and in the same direction change the length of the two cross struts of the frame-shaped support structure of the seat component.The width adjustment of the respective seat component, i.e. a widening of the seat surface of the respective seat component and the associated angle adjustment of the two side parts of the respective seat component, i.e. a folding of the two side parts of the respective seat component, is automatically activated as described, in particular when relatively high acceleration forces of the vehicle occur and in the event of a crash of the vehicle.

[0034] In a preferred development of the invention, a length adjustment mechanism can also be integrated into the two side parts of the seat component of the vehicle seat, in particular in the two side cheeks of the seat cushion of the vehicle seat and / or in the two side bolsters of the seat back of the vehicle seat. This length adjustment mechanism in the two side parts of the seat component of the vehicle seat is provided for the simultaneous and co-directional height adjustment of the two side parts of the seat component of the vehicle seat, in particular for the simultaneous and co-directional height adjustment of the two side cheeks of the seat cushion of the vehicle seat and / or the two side bolsters of the seat back of the vehicle seat, and thus enables (height) adjustment of the seat component of the vehicle seat to the body size of a vehicle occupant sitting on the vehicle seat.

[0035] The respective length adjustment mechanism can have an electric motor integrated into the side part of the seat component of the vehicle seat or connected to the side part of the seat component of the vehicle seat for adjustment.

[0036] The vehicle seat can be designed for any vehicle, in particular for autonomous vehicles, where the vehicle occupants can adopt variable seating positions in the vehicle during autonomous ferry operation,

[0037] With the presented width adjustment mechanism according to the invention and the angle adjustment mechanism coupled to it, a quick change in the width of the seat surface of a seat component and a change in the angle coupled thereto and thus a folding of the two side parts of the respective seat component is possible with a simple device, in particular a quick change in the width of the seat surface of the seat cushion of the vehicle seat and / or the seat surface of the seat back of the vehicle seat and a change in the angle coupled thereto and thus a folding of the side cheeks of the seat cushion of the vehicle seat and / or the side cheeks of the seat back of the vehicle seat.

[0038] This allows a vehicle occupant sitting on the vehicle seat to have his or her entire torso stabilized in the vehicle seat in a variety of driving conditions or during a variety of driving maneuvers, thus ensuring that this vehicle occupant is securely held in the vehicle seat.

[0039] This active encircling of a vehicle occupant in the vehicle seat by folding the two side sections of the seat components is particularly advantageous in crash preparation in the event of an impending collision. It also provides good lateral support for vehicle occupants in autonomous driving mode. Furthermore, with a vehicle seat equipped with seat heating, the heat transfer from the vehicle seat to the vehicle occupant is effective, so that only a low heating power is required for the seat heating.

[0040] Further advantages, features, and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing(s). The features and feature combinations mentioned above in the description, as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respective specified combination, but also in other combinations or on their own, without departing from the scope of the invention.

[0041] Showing:

[0042] Fig. 1 A schematic representation of the backrest support structure of the seat back of a vehicle seat with the width adjustment mechanism and the angle adjustment mechanism.

[0043] Fig. 2 A section of the backrest support structure of the seat back of a vehicle seat with a detailed view of the width adjustment mechanism and the angle adjustment mechanism in a retracted position.

[0044] Fig. 3 A section of the backrest support structure of a vehicle seat with a detailed view of the width adjustment mechanism and the angle adjustment mechanism in an extended position. Fig. 4 A schematic representation of the seat cushion and the backrest support structure of a vehicle seat.

[0045] In the following, an embodiment of the seat back or backrest of the vehicle seat is described, whereby the statements and explanations made in this regard can also be applied analogously, for example, to a seat cushion of the vehicle seat.

[0046] According to the schematic sectional view in Figure 1, the vehicle seat 1 has, as seat components 2, in addition to the seat cushion (not shown), a seat back 2 or backrest with two side bolsters 5, 6 laterally molded onto the seat surface 4 of the seat back 2. Thus, a side bolster 5 on one seat half 17 of the seat back 2 is molded onto the seat surface 4 of the seat back 2, and a side bolster 6 on the other seat half 18 of the seat back 2 is molded onto the seat surface 4 of the seat back 2.

[0047] A backrest support structure 3 is integrated into the seat back 2 or backrest of the vehicle seat 1 to stabilize the structure of the vehicle seat 1 or the seat back 2.

[0048] Furthermore, two spaced-apart cross-brace pairs 9, 10 are provided, each with two cross-braces 11. The cross-braces 11 comprise a rigid part 12 with a derailleur mounted at a specific deflection position as the deflection element 15, as well as a movable part 13 with a hinge 14 that can be moved along a specific travel path.

[0049] A width adjustment mechanism 7 is integrated centrally into each of the two cross brace pairs 9, 10, i.e., into the upper cross brace pair 9 with the respective two cross braces 11 in the upper region of the backrest support structure 3, and into the lower cross brace pair 10 with the two respective cross braces 11 in the lower region of the backrest support structure 3. This width adjustment mechanism 7 enables a movement or displacement of the movable parts 13 of the cross braces 11 of the cross brace pairs 9, 10 and thus a bilateral movement of the movable parts 13 of the cross braces 11 from the outside inwards towards the center of the seat back 2 of the vehicle seat 1 or from the inside outwards towards the respective side bolsters 5, 6 of the seat back 2 of the vehicle seat 1. This also changes the width of the seat surface 4 located between the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1, i.e.the seat back 2 of the vehicle seat 1 is thereby narrowed or widened.

[0050] Figure 1 shows the situation in which the movable parts 13 of all cross struts 11 of the two pairs of cross struts 9, 10 have been moved by a specific travel path from the inside to the outside in the direction of the respective side bolsters 5, 6 of the seat back 2 of the vehicle seat 1, ie are in an extended position.

[0051] When a certain travel path of the movable parts 13 of the cross struts 11 of the cross strut pairs 9, 10 is exceeded, i.e. when the deflection position predetermined by the unwinder or derailleur as deflection element 15 is reached, an angle adjustment mechanism 8 becomes active which causes the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 to fold in. This angle adjustment mechanism 8 is effected by the movement of the hinge 14 on the movable, movable part 13 in interaction with the deflection on the unwinder or derailleur as deflection element 15 and due to the spring tension of several springs as elastic tensioning elements 16 which are tensioned between the rigid longitudinal struts 19 and the movable longitudinal struts 20 forming the outer contour of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1.

[0052] For example, three such springs are provided as elastic tensioning elements 16 on each seat half 17, 18 of the seat back 2 of the vehicle seat 1 between the rigid longitudinal struts 19 and the movable longitudinal struts 20. Additionally, a spring 22 of this type can be arranged as an elastic tensioning element between the two rigid longitudinal struts 19.

[0053] To support the folding movement of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 during the folding process of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1, the sleeves 28 are provided within the backrest support structure 3. To implement the width adjustment mechanism 7 and the angle adjustment mechanism 8 coupled thereto, and thus to move the movable parts 13 of the cross struts 11, an adjustment drive 23 with an electric motor 24 and spindle drives 25 is provided for each cross strut pair 9, 10, arranged centrally in the respective cross strut pair 9, 10.

[0054] A corresponding length adjustment mechanism 26 can be provided for adjusting the height of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1. This allows the height of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 to be adjusted simultaneously and in the same direction.

[0055] Figure 2 shows a detailed view of the fully retracted state of the movable parts 13 of the respective cross struts 11.

[0056] In this fully retracted state of the movable parts 13 of the respective cross struts 11, there is no deflection of the movable parts 13 of the cross struts 11 and, as a result of this and the elongation of the springs as elastic tensioning elements 16, there is also no narrowing of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1. Thus, there is no firm and close claspping of a vehicle occupant 27 located on the vehicle seat 1.

[0057] The springs as elastic tensioning elements 16 are pre-tensioned in this fully retracted position for the next extension of the movable parts 13 of the cross struts 11.

[0058] Figure 3 shows a detailed view of the fully extended state of the movable parts 13 of the respective cross struts 11.

[0059] In this fully extended state of the movable parts 13 of the respective cross struts 11, the complete folding of both side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 takes place by means of the angle adjustment mechanism 8. This angle adjustment mechanism 8 is initiated by the movable part 13 of the cross strut 11 when the deflection position predetermined by the unwinder or derailleur as deflection element 15 is passed over.

[0060] In this fully extended state of the movable parts 13 of the respective cross struts 11, i.e. at the maximum travel path of the movable parts 13 of the respective cross struts 11, the deflection of the movable parts 13 of the cross struts 11 by means of the hinge 14 on the unwinder or derailleur as deflection element 15 and the spring tension as a result of the contraction of the springs as elastic tensioning elements 16, results in a maximum narrowing of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 and thus a firm and close grip on the body of a vehicle occupant 27 located on the vehicle seat 1. This situation of the fully extended state of the movable parts 13 of the respective cross struts 11 according to Figure 3 is also shown in Figure 4 for the seat cushion 21 of the seat back 2 of the vehicle seat 1.

[0061] According to Figure 4, the maximum narrowing of the two side bolsters 5, 6 of the seat back 2 of the vehicle seat 1 caused in the fully extended state of the movable parts 13 of the respective cross struts 11 is also coupled with a corresponding strong curvature of the seat cushion 21 on the backrest support structure 3.

Claims

Patent claims 1. A vehicle seat (1) with at least one seat component (2) having a supporting structure (3) and two side parts (5, 6) formed onto a seat surface (4), wherein the at least one seat component (2) has a width adjustment mechanism (7) for adjusting the width of the seat surface (4) of the seat component (2) and an angle adjustment mechanism (8) coupled to the width adjustment mechanism (7) for adjusting the angle of incidence of at least one side part (5, 6) of the seat component (2), wherein the width adjustment mechanism (7) of the respective seat component (2) has two pairs of cross struts (9, 10) each having two cross struts (11) arranged at a distance from one another and connected to the supporting structure (3) of the seat component (2),wherein a rigid part (12) of a respective cross strut (11) is connected to the supporting structure (3) of the seat component (2), and a movable part (13) of a respective cross strut (11), which can be moved by a specific travel path, is connected to one of the two side parts (5, 6) of the seat component (2), and in that the movable part (13) of the respective cross strut (11) has a joint (14) which, in order to form the angle adjustment mechanism (8), cooperates with a deflection element (15) attached to the rigid part (12) of the respective cross strut (11) when the cross strut (11) is moved, wherein the deflection element (15) is arranged on the rigid part (12) of the respective cross strut (11) at a deflection position corresponding to a characteristic travel path of the movable part (13) of the respective cross strut (11), characterized in thatthat the respective seat component (2) for forming the angle adjustment mechanism (8) has a plurality of elastic tensioning elements (16) oriented parallel to the respective cross struts (11) of the two pairs of cross struts (9, 10) and two longitudinal struts (19, 20) arranged on a seat half (17, 18) of the respective seat component (2), and that one end of the elastic tensioning elements (16) is connected to a rigid part (12) of the cross struts (11) rigid longitudinal strut (19) and the other end of the elastic tensioning elements (16) is each connected to a movable longitudinal strut (20) connected to the movable part (13) of the cross struts (11).

2. Vehicle seat (1) according to claim 1, characterized in that the elastic tensioning elements (16) form a support surface for the seat cushion (21) of the seat component (2).

3. Vehicle seat (1) according to claim 1, characterized in that at least one elastic tensioning element (22) is arranged between the two rigid longitudinal struts (19) connected to the rigid part (12) of the cross struts (11) of a cross strut pair (9, 10).

4. Vehicle seat (1) according to one of the preceding claims, characterized in that an electric motor-operated adjustment drive (23) for moving the movable part (13) of the two cross struts (11) of the respective cross strut pair (9, 10) is integrated into each of the two cross strut pairs (9, 10).

5. Vehicle seat (1) according to one of the preceding claims, characterized in that a length adjustment mechanism (26) for simultaneous and co-directional height adjustment of the two side parts (5, 6) of the seat component (2) is integrated into each of the two side parts (5, 6) of the respective seat component (2).

6. Vehicle seat (1) according to one of the preceding claims, characterized in that a seat cushion with side cheeks as side parts and / or a seat back (2) with side cheeks as side parts (5, 6) is provided as the seat component (2) of the vehicle seat (1).

Images