| 摘要 |
The present invention relates to an arrangement in a structure member, especially a structural beam and more specifically a bumper bar (1) for a vehicle or vessel, and in order to provide a relatively rapid and inexpensive system, which has a short reaction time and which is easy to reset, it is according to the invention suggested that said arrangement comprises means for displacing said bar (1) in relation to the vehicle, for thereby, especially in an emergency situation, to elongate respectively expand the deformation zones of said vehicle whilst simultaneously enabling bar locking means (7; 107) to be effective.
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