Patent ID: 7963495

Claim:
Ceiling mounted lift for a multimedia projector, to be installed in a hollow ceiling, comprising: a frame-shaped base plate to be fitted to an original ceiling, a platform for receiving the projector and that can be lowered from a non-usage position into a usage position in relation to the base plate, and lifting spindles co-operatively connected with spindle nuts and that are drivable in both rotation directions for lowering and lifting the platform in relation to the base plate, wherein the lifting spindles and the spindle nuts are equipped with a circular thread, and the spindle nuts consist of Nylon thread nuts, wherein there are four lifting spindles fitted in four corner areas of the frame-shaped base plate, and the lifting spindles being driven from a common drive which is located under the base plate and fitted to the base plate within an area defined by the lifting spindles, whereby the platform is equipped with a recess enclosing the drive at least in the non-usage position.