| 摘要 |
ELEVATOR FOR MOTOR VEHICLES An elevator for motor vehicles wherein the floor area to be occupied by a vehicle is flanked by two columns for vertically movable followers each of which carries the first end of a first arm which, in turn, carries the first end of a second arm. The first arms are extendible and contractible at right angles to the longitudinal direction of the vehicle to be lifted, and their second ends carry the first ends of the second arms. The second ends of the second arms are extendible and retractible and carry platforms for designated regions of the underside of the frame of the vehicle between the two pairs of arms. Additional platforms are mounted at the first ends of the second arms which latter extend in parallelism with the longitudinal direction of the vehicle to be lifted. The first arms are extended, while they are located at a level below the underside of the frame of the vehicle between the two sets of arms, to move the second platforms into register with two designated regions, and the second arms are then extended to move the first platforms into register with additional designated regions before the first arms are lifted to thus cause the four platforms to engage the respective designated regions at the underside of the frame and to lift the vehicle above the floor. |
