| 摘要 |
A vehicle lift device and method are provided wherein the lift device has upper and lower platforms that may receive vehicles for parking or storage. The lower platform may be selectively raised or lowered between two levels of a parking structure. The upper platform is mounted on telescoping supports. When the car lift device is raised to place the lower platform at the upper level of the parking structure, the telescoping posts retract allowing the upper platform to lower, thereby providing clearance between the upper platform and a ceiling of the parking structure. The posts retract by the weight of the upper platform, and no hydraulic assist is required. When the lift device is lowered to place the lower platform at the lower level of the parking structure, the upper platform engages the floor of the upper level of the parking structure and thereby covers the opening in the floor. The telescoping posts then extend as the lower platform travels to its lowered position at the lower level.
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