| 摘要 |
050 PO2 A portable lift for lifting motor vehicles comprises a lift arm (6) said arm being pivotally articulated and lowerable into a position between lateral parts of base frame (1) which form a drive-on ramp, with lateral support arms (7) mounted on its free ends, said arms being guides by a parallelogram guide (10) parallel to the plane of the ground. To pivot lift arm (6), a hydraulic cylinder and piston assembly (3) is used which is mounted at a distance from pivot axis (5) of lift arm (6) which, at the maximum operating height of support arms (7), forms a pivot angle (alpha) of the axis of cylinder and piston assembly (3) to the plane of the ground between 75 degrees and 105 degrees. Cylinder and piston assembly (3) engages lift arm (6) at a distance from the free end which corresponds to at least 15 percent of the length of lift arm (6), and lift arm (6) is formed between the point of engagement of support arms (7) essentially as U-shaped members open toward the free end thereof. |
