Patent ID: 6575432
Filing Date: 2003-06-10
Classification: B66F

Abstract:
A vehicle jack comprising; a support leg (23) engaged on a support foot (25), a vehicle support arm (24) rotatably engaged on the support leg (23) and a screw spindle (26) operated by a winding handle (27) threaded through a nut (5) on the support leg, the screw spindle being engaged to a cross member (33) and rotatably engaged in the support leg (23), an auxiliary part (30) being coaxially engaged with the cross member (33.) and having a vehicle support plate (31) engaged to a free end thereof,wherein the auxiliary part (30) engages an end of the screw spindle when the jack is in a folded position, wherein the nut (5) comprises an outer body (5â€³) and an interior part (5â€²) engaged in the outer body (5â€³) at a plurality of surface contact points, the screw spindle (26) being threadedly engaged in the interior part (5â€²); and wherein the outer body (5â€³) has a U-shaped cross section, a base with a hole therethrough, two parallel wings (2, 3) projecting up respectively from opposite sides of the base which have end edges (6) parallel to the base, two parallel longitudinal reinforcements (12) projecting up, respectively from the base between the two parallel wings (2, 3), ends of the two parallel wings each having a surface (9) inclined toward a central plane of the U-shaped body, each said surface (9) having aligned cavities (10).