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.

An active vibration isolation system for a motor vehicle seat that is adapted to be occupied by a user, includes an active suspension system that supports the seat above a floor of the motor vehicle, where the suspension system comprises at least one actuator that can be controlled to move the seat up and down in the direction of a vertical axis, a first sensor system mounted to the vehicle and that is adapted to sense vehicle height position changes along or parallel to the vertical axis, a second sensor system that is adapted to determine the seat translational position along or parallel to the vertical axis, and a controller that, in response to the first and second sensor systems, is adapted to provide control signals to the active suspension system that cause motions of the seat that are designed to control the height of the user's head or torso as the vehicle undergoes translations along the vertical axis.

Suspension device for a vehicle seat, comprising an upper suspension portion and a lower suspension portion, which are interconnected by a first swivel connector and a second swivel connector, wherein the suspension device comprises a first adjustable toothed wheel element arranged on the upper suspension portion, a second toothed wheel element connected to the first swivel connector for adjusting a position of a first spring unit, by means of which a spring force and a spring rate of the suspension device can be changed, and a third toothed wheel element which is at least operatively connected to the first and the second toothed wheel element and is connected to the first swivel connector.

The invention relates to a vehicle seat or to a vehicle cabin having a suspension apparatus comprising a top end part and a bottom end part, which can be deflected relative to the top end part, which are connected to each other in a spring-loaded manner by means of a suspension element, and having a dampening apparatus for dampening vibrations having effect on at least one of the two end parts wherein the dampening apparatus and a distance leveling apparatus for adjusting a distance between the top end part and the bottom end part have an actuator fluid element controlled by common pressure stages.

The invention relates to a vehicle seat with a vehicle seat upper part and a vehicle seat lower part, the vehicle seat upper part and the vehicle seat lower part being connected to one another by means of a connecting means in such a way that the vehicle seat upper part can be moved relative to the vehicle seat lower part and, when the vehicle seat upper part moves relative to the vehicle seat lower part, the relative movement can be sprung by means of a spring element, the vehicle seat having an additional volume, the spring element being arranged between the vehicle seat upper part or the vehicle seat lower part and a proportion of the additional volume.

The invention relates to a vehicle seat, in particular for commercial vehicles, with an upper part and a lower part and with at least one air spring which exerts a resilient effect on a height-distance-movement which changes between the upper and lower parts, and with at least one damper element which damps the changing height-distance movement, wherein the air spring is connected at an air spring outlet to an adjustment device which adjusts a degree of damper hardness, which damps the changing height-distance-movement, wherein the air spring is connected at an air spring outlet to an adjustment device for adjusting a degree of damper hardness of the damper element, wherein the degree of damper hardness can be adjusted and changed by means of an air pressure of the air spring.

A seat device for a vehicle, in particular a tilting vehicle, includes at least one cushion body which forms a seat surface on a side facing a user of the vehicle; at least one transmission body which is disposed or formed on the cushion body on the side of the cushion body facing away from the seat surface and which extends away from the cushion body; at least one rigid seat shell which is disposed on a side of the cushion body facing away from the seat surface and can be fastened to a support structure of the vehicle and has at least one recess, in which at least the transmission body can be or is disposed; and at least one adjustment unit which is disposed between the cushion body and the seat shell and has at least one tensioning element. The tensioning element is disposed in the recess in the seat shell between the cushion body and the seat shell and can be transferred from a relaxed initial position, in which the depth of insertion of the transmission body into the recess in the seat shell is maximal, into at least one loaded functional position, in which the transmission body is displaced by the tensioning element into a position in which the depth of insertion of the transmission body in the recess of the seat shell is reduced in comparison with the initial position.

The invention relates to an active vehicle seat suspension system with a lower part and an upper part of a vehicle seat and a scissor frame arranged therebetween with at least one first and at least one second scissor arm articulatedly connected thereto, wherein at least the first scissor arm is articulatedly connected with a first end to the upper part and is articulatedly connected with a second end to the lower part and is displaceable thereon, wherein at least one traction means which can move the second end of the first scissor arm forwards or backwards, as viewed in the longitudinal direction of the vehicle seat, is firmly connected to at least one rolling axle which is arranged at the second end.

A load leg adapted for a child safety seat includes a first telescoping member, a second telescoping member, a third telescoping member, a first engaging assembly, a second engaging assembly, and an operating member. The first engaging assembly is movably disposed on the first telescoping member for engaging with or disengaging from the second telescoping member. The second engaging assembly is movably disposed on the second telescoping member for engaging with or disengaging from the third telescoping member. The operating member is for driving the first engaging assembly and the second engaging assembly simultaneously to allow relative sliding movement of the first telescoping member and the second telescoping member and relative sliding movement of the second telescoping member and the third telescoping member at the same time, which provides a convenient way to extend the load leg between the child safety seat and a floor of a vehicle.

A child safety seat includes a seat body, a headrest, a headrest adjusting mechanism, and a harness component. A seat space is defined on the seat body. The headrest is movably disposed on a front side of the seat body facing the seat space. The headrest adjusting mechanism is for allowing the headrest to move relative to the seat body or restraining the headrest from moving relative to the seat body. The harness component includes a first part and a second part. The first part at least partially is received between the headrest adjusting mechanism and the seat body. The second part is connected to the first part and exposed out of the headrest toward the seat space.