Car jack having a supporting arm and process for producing the supporting arm for such a car jack

摘要

The free end of the support arm has a U-shaped cross section with middle and two side arms. The support arm swivels on the standing column (1) to which it is joined. The U-shaped cross-section of the column incorporates a middle arm (17) and two side arms (18). At least one end of the middle arm does not extend as far as the end of the side arms. A reinforcement wall (19) has side strips (20) which fit into matching cavities or passages in which they are welded or riveted.