ELECTRICALLY DRIVEN ELEVATION DEVICE FOR SHORT FOCAL PROJECTOR

摘要

PROBLEM TO BE SOLVED: To provide an electrically driven elevation device which allows a short focal projector to be used more conveniently.;SOLUTION: An electrically driven elevation device 100 for installing a short focal projector 200 so that it can project an image on a wall surface A in a room and is vertically movable comprises: a fitting part fixed over one or both of the wall surface A and a ceiling surface B in the room; an electrically driving unit 2 which is supported by the fitting part and has a motor and a rotating body forward and backward rotated by the motor; rail parts 4L and 4R which are disposed below the electrically driving unit 2 and extends in a vertical direction; a slider part 5 which is guided along the rail parts to be movable in the vertical direction; and a projector holding part 8 provided on an arm part 7.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT