METHOD AND DEVICE AT A PISTON-CYLINDER DEVICE

摘要

The present invention relates to a method and an arrangement in an energy-accumulating piston-cylinder arrangement (A) having a piston/piston rod part (2), guide/end (3) and tubular casing (1). The invention is characterised in that the said casing (1) is provided with a fracture or sprain mark (7) in order to initiate a controlled deformation of the casing in the event of a load that produces a stress in excess of a sprain or fracture limit, or of repeated cyclical stressing that gives rise to material fatigue, so that an excess pressure in the arrangement (A) is discharged past the said deformed casing.