Updating of DIN 75 078 Part 2 – Continued optimization of wheelchair retention systems (06543)
Investigations by the Federal Highway Research Institute reveal that standard retention mechanisms for wheelchairs and their users pose a high risk of injury to the vehicle's occupants. One of the many risk factors is the submarining effect, whereby a human being's osseous pelvis slides below the lap belt in the event of a frontal collision, potentially resulting in severe internal injury in the abdominal area by the belt's penetration. Accordingly, DIN 75 078 Part 2 has been fundamentally revised under the supervision of the Federal Highway Research Institute. A power node developed on a wheelchair makes it possible to control, among other things, the geometry of the lap belt during fastening and in the event of a frontal collision so as to notably reduce the submarining effect. To further improve the design features arising through the introduction of the power node on the wheelchair, it is necessary to conduct additional crash tests with a retardation carriage.
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