A lower guide frame for a vertical suspension system of a vehicle seat having a left-hand slide and, parallel thereto, a right-hand slide which are connected to each other via a lower crosspiece. Attached to an upper side of at least one slide is a reinforcing profile which has a horizontal portion, via which it is connected to the upper side of one slide, and adjoining the horizontal portion is an oblique portion that is oriented obliquely downwards and outward. Adjoining the oblique portion is a vertical portion that, in the assembled state, extends to just above a vehicle floor.

A vehicle seat comprising a device for levelling the vehicle seat is provided. The vehicle seat including an upper seat element, which can be moved relative to a lower seat element by a first air spring and on which a mass can be arranged The lower and the upper seat element are arranged at a predetermined distance from one another, and the first air spring is fluidically connected to an additional volume of an additional volume module by a first fluid connection. The internal pressure of the first air spring is controllable by the additional volume module. The device comprises a limited auxiliary volume, which is fluidically coupled to the additional volume by means of a fluid conveying unit and a second fluid connection, it being possible, when the distance changes between said seat elements due to a shift in weight of the mass on the upper seat element, to change the internal pressure of the additional volume and, indirectly, of the first air spring by a fluid being conveyed between the auxiliary volume and the additional volume by means of the fluid conveying unit in order to compensate for the change in distance.

Vehicle seat comprising a vehicle seat upper part and a vehicle seat lower part, the vehicle seat upper part being movable relative to the vehicle seat lower part, and the vehicle seat upper part being able to be sprung and damped, relative to the vehicle seat lower part, by a suspension and damping element, the suspension and damping element comprising a reversibly deformable plastics element and an adjusting element, the plastics element and the adjusting element being in operative contact, and the spring characteristics of the suspension and damping element being able to be adjusted depending on the position of the adjusting element relative to the plastics element.

A device for level regulation and level stabilization of a vehicle seat upper part. The device includes an air spring that spring loads a movement of the vehicle seat lower part and of the vehicle seat upper part relative to one another, the vehicle seat lower part and the vehicle seat upper part are arranged in a non-deflected state at a predeterminable distance from one another. The air spring is fluidically connected to a working volume of an additional volume module. A control unit decreases the volume of the working volume in the event of an increase in the distance and increases the volume of the working volume in the event of a decrease in the distance such that the pressure in the air spring can be changed such that the distance between the vehicle seat upper part and a reference surface is substantially unchanged.

The invention relates to an adjustable damping system for a vehicle seat for damping vibrations of a seat-part-side upper part relative to a body-side lower part in at least one spatial direction (X, Y, Z), at least one damping element, arranged between the seat-part-side upper part and the body-side lower part and adjustable by an adjustment device, being provided for the damping. The damping system is further distinguished in that at least one relative movement variable and a change in the relative movement variable of the seat-part-side upper part relative to the body-side lower part can be determined by a sensor device, and a first damping force of the damping element can be adjusted by the adjustment device as a function of the at least one relative movement variable and the frequency of the change in the relative movement variable.

A height adjusting mechanism (100) is provided for a vehicle seat (1), in particular for a utility vehicle seat, including a scissors-type frame (3). The height adjusting mechanism (100) includes a gas spring (12) that cooperates with the scissors-type frame (3) as well as a valve device (40) for ventilating and/or evacuating the gas spring (12). The valve device (40) is located on a control unit (110). The control unit (110) includes a control element (82) for actuating the height adjusting mechanism (100). A vehicle seat (1) is also provided including a height adjusting mechanism (100).

Vehicle seat having a suspension unit or cushioning the rolling and vertical suspension movements of the vehicle seat, wherein the vehicle seat has a vehicle seat upper part and a vehicle seat lower part, wherein the vehicle seat upper part and the vehicle seat lower part are connected by means of the suspension unit so that the vehicle seat upper part and the vehicle seat lower part are movable relative to one another, wherein the suspension unit has a scissor arrangement having a first scissor arm and a second scissor arm, wherein the suspension unit is connected rotatably about a first axis of rotation to the vehicle seat lower part and comprises a spring element support and a first fluid spring element and a second fluid spring element, wherein the first fluid spring element and the second fluid spring element are each connected to the vehicle seat lower part and to the spring element support which is rotatably connected about a second axis of rotation to the first scissor arm and rotatably connected about a third axis of rotation to the second scissor arm, wherein a fluid can be pumped between the first fluid spring element and the second fluid spring element by means of a pump unit, so that the vehicle seat upper part is substantially in a horizontal position.

The invention relates to a vehicle seat with a roller guide, wherein the roller guide has at least one at least partially laterally open guide rail and at least one running roller rolling in the guide rail and connected to parts of the vehicle seat by means of at least one axle, wherein the guide rail comprises a roller bottom-side inner wall arranged parallel to a central axis of the running roller, extending parallel thereto a roller top-side inner wall and a roller outer-side inner wall arranged perpendicularly to the central axis, wherein at least one lower transition inner wall is arranged between the roller bottom-side inner wall and the roller outer-side inner wall and at least one upper transition inner wall is arranged between the roller top-side inner wall and the roller outer-side inner wall, wherein the transition inner walls are configured free from a right-angled portion and in directions from the roller top-side inner wall and the roller bottom-side inner wall towards the roller outer-side inner wall are configured with a continuously reducing spacing from the central axis of the running roller, wherein on an axial loading of the roller guide in the direction of the central axis of the running roller, a lower portion of an outer end portion at a first end of the running roller configured to face the roller outer-side inner wall lies with contact against the lower transition inner wall.

The invention relates to an adjustable damping system for a vehicle seat for damping a movement of the seat part-side upper part relative to the body-side lower part in at least one spatial direction, wherein, for damping, at least one damping element is provided, which is adjustable by an adjustment device and is arranged between the seat part-side upper part and the body-side lower part. The damping system is further distinguished in that a first damping force of the damping element is settable by the adjustment device, wherein this first damping force can be determined by the adjustment device, with the aid of a total damping travel of the damping element, a basic damping force presettable by a damping setting device, a position of the seat part-side upper part, measurable by a sensor device, relative to the body-side lower part and a movement direction of the seat part-side upper part relative to the body-side lower part, wherein the movement direction can be determined from at least two temporally consecutive positions of the seat part-side upper part, measurable by the sensor device, relative to the body-side lower part.

Provided is a multi-dynamic platform including an upper support that can be integrally attached to a mobile element and defines an upper plane, a base support that can be fixed to the ground and defines a base plane, at least one intermediate support arranged between the base and upper supports, articulated quadrilaterals each including two lower hinges, connected to one of the base or intermediate supports, two upper hinges, connected to one of the intermediate or upper supports, two rods which connect the lower hinges to the upper hinges in a crossed manner, and motor means configured to move the articulated quadrilateral internally according to its single degree of freedom defining an axis of rotation, the articulated quadrilaterals being at least two in number and being substantially placed one on top of the other and defining reciprocally oblique axes of rotation.