| 摘要 |
A vehicle lift of the type which is installed in a pit includes at least two vertically expanding and contracting jacks disposed in the pit in a mutually juxtaposed relation and each comprising a pair of vertically disposed parallel link mechanisms which can be vertically expanded and contracted together. A pair of rollers are provided on each jack. A pair of rails are provided at the bottom of the pit in that area thereof in which each jack is situated, and the rollers are rollably supported on the rails, respectively. A vehicle supporting table is horizontally supported on each jack. A hydraulic cylinder is provided on each jack and has a piston rod connected to the link mechanisms for expanding and contracting them and thereby the jack to thereby raise and lower the table. At least one of the jacks is provided with another pair of rollers supported rollably on the rails, and a system for moving the jack horizontally along the rails toward and away from the other jack.
|
