摘要:
The invention relates to a method and device for avoiding or reducing injuries in the area of the neck and nape, in particular acceleration trauma to vehicle occupants (17), which can arise as a result of the rear impact of a vehicle colliding from the rear (5). By using a sensor system (2) located in the vehicle (1) for continuously detecting the distance at the rear and a data processing system (4), a timely prediction of the rear-end collision and of the impending rear impact is determined. In order to minimize the risk of injury as a result of the tumbling movement of the head (19), the head (19) should be located as far as possible in the median plane or aligned in the direction of travel and the neck musculature should be tensed. This aim is achieved by means of a reflex reaction to an acoustic, mechanical, visual or electrical alarm signal, which is preceded by a static or dynamic visual display (8) at a point that is fixed or can be determined by a computer. Before the alarm signal is output, the heads (19) of the occupants (17) are at least approximately aligned in the median plane of the body or in the direction of travel by means of an orientation reaction resulting from the static or dynamic visual display (8) at a point that is fixed or can be determined by a computer, in order to prevent the head (19) from lurching immediately after the impact.
摘要:
The invention relates to a head-rest of a vehicle seat (1), with a deformable central supporting body which forms the impact zone (8) for the head (5) of a vehicle occupant and into which the kinetic energy of the head (5) in the event of an accident is admitted. On both sides of the impact zone (8) the central supporting bodies are joined by lateral supporting surfaces (9) which are extendable out of the plane of the head-rest (4) in the direction of travel (X) in order to laterally support the head (5). In order to avoid or at least to reduce the risk of a cervical-spine whiplash injury, it is proposed according to the invention that the head-rest (4) comprises means for absorbing the energy admitted into the central supporting body (8) and for outputting the absorbed energy in order to activate lateral supporting surfaces (9).