Reversible impact damper, in particular for vehicles

An impact damper, in particular for vehicles, comprising:

• a reversible impact damper (A) with a housing (1) having a central longitudinal axis (3), with a damping medium, in particular a compressible solid (10), in said housing (1), with a piston rod (5) arranged displaceably in the direction of said axis (3) of said housing (1) and having a first end located outside said housing (1), and a second end located within said housing (1), to which second end a piston (4) is secured, which piston (4) introduces forces into said damping medium (10) to be absorbed by said damping medium (10);
• an irreversible deformation damper (B), with a slide tube (15) with an internal wall and being displaceable relative to said housing (1) in the direction of said axis (3), with projections (19) at said internal wall in the form of crimps (19, 19', 19") extending substantially parallel to said axis (3), being directed inwards to said axis (3), and being deformable outwards radially to said axis (3), with a deformation piston (18) resting against said first end of said piston rod (5) and against ends of said projections (19) facing the deformation piston (18);
• and
• securing elements (2, 17), being connected with said housing (1) on the one hand and with said slide tube (15) of said deformation damper (B) on the other hand.