| 摘要 |
A device for lifting and holding a cabinet to be mounted to a wall or ceiling. A base member is mounted on a suitable support, and a hollow, linear, elongate drive shaft extends upwardly from the base member. An elongate lift shaft is received coaxially within the drive shaft, with the lift shaft being driven in a longitudinal movement up and down within the drive shaft. At least two elongate, hollow stabilizer shafts are spaced outwardly from the drive shaft, with a longitudinal axis of each stabilizer shaft being substantially parallel with a longitudinal axis of the drive shaft. An elongate idler shaft is received coaxially within each stabilizer shaft, with each idler shaft being movable longitudinally within its respective stabilizer shaft so that the upper end of the idler shaft can move up and down relative to the upper end of the respective stabilizer shaft. A planar lift plate is attached to the upper end of the lift shaft and the upper ends of each of the idler shafts so that the lift plate moves up and down as the upper ends of the lift shaft and the idler shafts move up and down. The lift plate is constrained to remain substantially perpendicular to the drive shaft by the idler shafts as the lift plate moves up and down.
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