Provided is an inertial 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, and each including sensing means to detect the position of the upper plane with respect to the gravitational gradient functionally connected to means of control of the platform and at least to the motor means.

Vehicle seat comprising an upper seat part and a lower seat part, the upper seat part and the lower seat part being connected by a scissor-action frame, and comprising a damper, the scissor-action frame comprising a first scissor arm and a second scissor arm, the first scissor arm and the second scissor arm being mounted so as to be rotatable about a common swivel axis, a first end of the damper being rotatably connected to the first scissor arm, a first lever element and a second lever element being provided, a first end of the first lever element being rotatably connected to the first scissor arm and a first end of the second lever element being rotatably connected to the second scissor arm and a second end of the damper being rotatably connected to a second end of the first lever element and to a second end of the second lever element.

Seat-damping devices, systems, and methods for damping vibrations are disclosed. A fail-safe permanent magnet is used with an electromagnet to create damping of induced vibrations in a seat-damping device using magnetorheological, electrorheological, magnetically responsive powders and other magnetically responsive materials.

The invention relates to a vertical suspension system 1 for a vehicle seat having a lower guide frame 2 and an upper guide frame 3, between which there is disposed a lever arrangement that comprises an inner lever 7 and an outer lever 8, which are connected to each other via a scissor joint 16, wherein the inner lever 7 and the outer lever 8 are connected to the lower guide frame 2 and to the upper guide frame 3 in each case via floating bearings and fixed bearings 10, 11, wherein realized on the lower guide frame 2 there is a lower crosspiece 5, which, at its lower end that faces away from the upper guide frame 3, has a rounded return region 19, wherein the lower fixed bearing 10 has a lower axle 9, which extends parallel to the lower crosspiece 5 and is opposite the latter, wherein realized on the upper guide frame 3 there is an upper crosspiece 6, having a belt band 12; 13, which is fastened to the upper crosspiece 6 in an upper fastening region 25 and to the lower crosspiece 5 in a lower fastening region 24, wherein the belt band 12; 13, in its lower fastening region 24, is realized in the form of a loop, and this lower fastening region 24 encompasses a retaining element 17, which is connected to the lower crosspiece 5, wherein the belt band 12; 13, between its lower fastening region 24 and its upper fastening region 25, is routed via the return region 19 and encompasses the lower axle 9.

Roller guide comprising at least one guide rail, which has at least one first and one second planar region, and comprising a first and a second roller, which are each in contact with the guide rail and roll thereon, wherein the first and the second roller are mounted so that they are rotatable about a common axis of rotation and are formed rotationally-symmetrically about the axis of rotation and a radius of the first roller is smaller than a radius of the second roller, the first roller has a first circular-segment-shaped surface rolling region and the second roller has a second circular-segment-shaped surface rolling region and a centre point of the first surface rolling region and a centre point of the second surface rolling region are arranged on the axis of rotation.

The invention relates to a vehicle seat, preferably for a utility vehicle, comprising a seat part and a backrest part. The backrest part has a left portion and a right portion when viewed in the seating direction of an occupant of the vehicle seat, and a first recess is arranged on the left portion so as to extend to a first distance and a second recess is arranged on the right portion so as to extend to a second distance starting from an upper end of the backrest part in a height direction of the backrest part. The first and the second recess are mutually spaced and are continuous from a front border surface to a rear border surface of the backrest part, and the first distance has a greater value than the second distance.

Provided is a semi-active seat suspension system that minimizes vibration and energy transmission from a vibration/energy source, such as a motor vehicle, to a seated occupant by means of a spring and computer-controlled damper suspension system. Using a variety of sensors to determine an ideal damping rate at a given point in time, the system adjusts the damping rate in real time to provide the best possible ride to the occupant given the constraints of the system.

A vehicle seat having a suspension unit for 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 upper 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, the suspension unit is rotatably connected about a first axis of rotation to the vehicle seat lower part and comprises a spring element support and a first spring element, wherein a displacement element is provided which is mounted displaceably with respect to the vehicle seat lower part, wherein the first spring element is connected on the one hand to the displacement element and on the other hand 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.

The invention relates to a vehicle seat having a lower part and an upper part displaceable in a height direction relative to the lower part, the lower part and the upper part being connected to one another in a manner displaceable relative to one another by means of a connecting unit, and a height adjustment unit being provided which is intended and designed to adjust a spacing of the lower part from the upper part, wherein the vehicle seat has a light display unit comprising a light source and a deflection unit for deflecting light of the light source, the light display unit being provided and adapted to output a first light indication when the spacing of the lower part to the upper part is outside a predetermined target area and to output a second light indication when the spacing is within the target area during a first operating state of the vehicle seat.

Various embodiments of the present technology may comprise a method and apparatus for a space-saving suspension system. In various embodiments, the apparatus may comprise a fine suspension device, a coarse suspension device, and a mechanical assembly. In various embodiments, the fine suspension device is arranged at an angle greater than zero degrees from the z-axis. In various embodiments, the mechanical assembly is coupled to the fine suspension device and a payload, such that when a force is exerted on the mechanical assembly by the payload, an applied force is transmitted to the fine suspension device.