| 摘要 |
The present invention relates to a seat system (1) for helicopters, comprising a frame (2) which can be fastened to the helicopter, an energy absorption arrangement (3) which comprises a first deformation device (6), forming a gap (4) with a first gap width (5), and a first tube (7) arranged in the gap (4), the diameter (8) of the tube outside of the gap (4) being greater than the first gap width (5), and comprising a seat unit (9) displaceably mounted on the frame (2) and fixedly connected to an element of the energy absorption arrangement (3) such that, in the case of an acceleration caused by a fall, a displacement of the seat unit (9) along the frame (2) is damped by the energy absorption arrangement (3), in which the first deformation device (6) and the first tube (7) are moved relative to each other, by which means the first tube (7), which is moved relative to the gap (4), is deformed, wherein the energy absorption arrangement (3) comprises a second tube (12) arranged in a gap (4) of the first deformation device (6) having a second gap width (10) or in a gap (4) of a second deformation device (11) having a second gap width (10), the diameter (8) of the second tube being greater outside of the gap (4) than the second gap width (10), and additionally a coupling unit (13) is provided which connects the second tube (12) or the second deformation device (11) as required to the seat unit (9) so that in the coupled state, in the case of an acceleration, the second tube (12) is deformed by a movement relative to the corresponding deformation device (6, 11), by which means the damping of the displacement of the seat unit (9) is increased. |
