Patent ID: 6068239
Filing Date: 2000-05-30
Classification: B66F

Abstract:
A vehicle jack comprising:a base plate (1);an arm;a body (2);a first end of said body (2) rotatably engaged to said base plate (1);a first end of said arm (3) rotatably engaged to said body (2);a screw spindle (4) having a first free end and a second end rotatably connecting said body (2) and said arm (3); anda winding handle (5) engaged to said first free end of said screw spindle (4) to rotate said screw spindle (4) said winding handle (5) having means to adjust a distance between said body (2) and said arm (3);said base plate (1) having of upwardly projecting sides (9) with opposing holes (10) and ribs (8') located transversely to said projecting sides (9);said body (2) having a U-shaped cross-section and a pair of connecting projections (12) projecting inward from sides of said body (2) at said first end thereof;wherein said projecting sides (9) of said base plate (1) are bent away from an axis of said base plate along notches (11) on said projecting sides (9) to permit easy engagement of said pair of connecting projections (12) in a bottom of said opposing holes (10);wherein said projecting sides (9) are bent inward along said notches (11) to engage a circumference of said projections (12) in said opposing holes (10) and secure said projections (12) in rotatable engagement with the opposing holes (10);wherein at least one of said ribs limits rotation of said body (2) on said base plate (1) in a first direction and top edges (9"") of said projecting sides (9) limit rotation of said body (2) on said base plate (1) in a second direction opposite to said first direction;wherein a second end of said body (2) has a pair of opposing slots (15) on said sides of said body (2);a nut (6) having a pair of grooves and threadingly receiving said screw spindle (4), edges of said slots (15) being respectively engaged in said grooves on said nut, said nut being secured in rotatable engagement in said slots (15) by bending projections (14) on said second end of said body (2) over said grooves on said nut (6);and wherein said arm (3, 30) has a recess (16, 33) on a second free end thereof which engages a holder plate (7, 36) for a vehicle and a cross member (25, 25', 36) which rotatably engages a second end of said screw spindle (4).