摘要:
Le dispositif d'amortissement (10) est destiné à amortir un choc dans une direction longitudinale (X). Il comporte une plaquette centrale (12), destinée à être solidarisée avec un premier organe (14A) du dispositif d'attelage (14), et deux ailes latérales (18), chacune formée par une plaque mince s'étendant dans la direction longitudinale (X). Chaque aile latérale (18) comporte au moins une première région longitudinale (20), solidaire de la plaquette centrale (12), au moins un seconde région longitudinale (22), destinée à être solidarisée avec un véhicule ferroviaire, et au moins une ligne de moindre résistance (24), séparant les première (20) et seconde (22) régions longitudinales entre elles, s'étendant sur l'aile latérale (18) dans la direction longitudinale (X).
摘要:
A rotational energy (1) typically for use in a fall arrest system has a coiler (5), a length of plastically deformable strip (4) and a deformer structure (3,3c). The plastically deformable strip has a first end (4a) attached to the coiler (5) and a second free end (4b) and extends past the deformer structure at a position between the first and second ends. Relative rotation of the coiler member and deformer structure (3,3c) causes the strip to be drawn past the deformer structure, plastically deforming the strip and winding the strip coil form about the coiler member.
摘要:
The invention relates to an impact attenuator for vehicles, including an energy absorbing device (8) for decelerating forces, comprising a housing, at least two pins (13) arranged in the housing which are arranged in parallel to each other in the housing, as well as a metallic, elongated draw element (14), which can be positioned within the housing such that it extends between and in contact with the pins, wherein the pins and the draw element are positioned such that a change of direction appears on the draw element when passing by each pin such that at mutual moving of the draw element and the housing in relation to each other, the movement is decelerated due to deformation of the draw element at passage of each pin. The pins (13) and the draw element (14) are positioned such that the draw element obtains a change of direction of at least 90° when passing at least two of the pins. The impact attenuator comprises a beam (3) and a collision catcher (9), which is connected to the beam and displaceable along its outer side, wherein one of the energy absorbing device (8) or the draw element (14) is connected to the collision catcher and displaceable together with it, while the other of these is fixedly connected to the ground or a fixed structure such that at a possible collision with the collision catcher, this is decelerated due to the mutual movement between the energy absorbing device and the draw element.
摘要:
A crash attenuator (100) for decelerating an impacting vehicle includes a first end (180) that can be releasably secured to a vehicle, and a second end (120) that is longitudinally spaced from the first end (180). The second end (120) includes an impact member (300) that is movable in the longitudinal direction from a pre-impact position to an impact position. At least a pair of deformable attenuator members (190) are spaced laterally and extend longitudinally between the first and second ends (180, 120). At least a portion of the attenuators (190) are bent in a non-outboard direction when the impact member (300) moves from the pre-impact position to the impact position.