Impact attenuator for vehicle and method

Details Impact attenuator for vehicle and method Impact attenuator for vehicle and method

B - Operations, Transporting

60

R

B60R 19/00 (2006.01) E01F 15/14 (2006.01)

Patent

CA 2556956

The invention relates to an impact attenuator, which is arranged flexible longitudinally as well as sideways (as a trailer). The impact attenuator (1) comprises a rear part (2) with two wheels (22), an attenuating part (39 and a front part (4) with two pivot wheels (41) and a coupling part (5) for connection to the vehicle (6). The coupling part (5) comprises a damper (51) for dampening part of the force during a collision against the impact attenuator (1). During a minor collision against the impact attenuator the collision force is mainly absorbed by the damper (51). The damper (51) regains after a collision its original position and the impact attenuator can remain operative. During a larger collision against the impact attenuator the collision forces is absorbed also by the attenuating part (3).

L'invention porte sur un atténuateur de choc disposé longitudinalement et de manière flexible, ainsi que latéralement (comme une remorque). L'atténuateur de choc (1) comprend une partie arrière (2) pourvue de deux roues (22), une partie d'atténuation (39) et une partie frontale (4) pourvue de deux roues pivots (41) et d'une partie d'accouplement (5) permettant de faire le raccordement au véhicule. (6). La partie d'accouplement (5) comprend un amortisseur (51) qui amortit une partie de la force lors d'une collision contre l'atténuateur de choc (1). Lors d'une collision mineure contre l'atténuateur de choc, la force du choc est principalement absorbée par l'amortisseur (51). L'amortisseur (51) reprend, après la collision, sa position d'origine et l'atténuateur de choc peut rester fonctionnel. Lors d'une collision majeure contre l'atténuateur de choc, les forces sont absorbées également par la partie d'atténuation (3).

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