A safety arrangement for a height-adjustable seat structure (100) is provided. The seat structure comprises a first set of legs (101A) comprising a first leg (105A) pivotably connected to a second leg (108A), and a first pair of guide rails (102A) comprisi...

A self-balancing vibration damping system, an active vibration damping seat, and transport equipment are provided. The self-balancing vibration damping system includes an active vibration damping module (100), a control module (2a), a sensor module (300;21...

There is provided a seat suspension with a compact structure while being capable of coping with input vibrations not only in a vertical direction but in six-axis directions. Three pantograph links 11 between a vehicle body floor side and a seat side are em...

The invention relates to a device with a suspension system, which suspension system (4) comprises a first part (10) subjected to a mass (12), a second part (14), and an air spring (18) arranged between this first part (10) and this second part (14), wherei...

The pneumatic spring system has two controlling devices (10,20), where the latter controlling device supplies air to a pneumatic spring (8) and disables extraction of air from the pneumatic spring during a pre-determined time interval after a travel end st...

A method for actively suspending a real plant (16) in a vehicle includes modifying a control signal on the basis of a difference between a property of the real plant (16), as indicated by the response of the real plant to the control signal, and a property...