The invention relates to a height adjustable seat base for vehicles which is provided with reinforcement means or stop means, for example rails 201, 202, which prohibits a forward motion of the displaceable base part of the seat base in case of a frontal c...

Back rest (1) comprising two standing side bars (3) and at least one cross bar (4) forming a frame (5) with a void (2) suitable for accommodating a load is described. The back rest (1) is further provided with mounting means (6) for mounting the back rest ...