Patent ID: 8804239

Claim:
A retractable display screen projecting apparatus adaptable to be housed inside a wall comprising: an outer shell, the outer shell being defined by a top board, a foot board, a backboard, a pair of side boards and a front panel; wherein the outer shell comprises: a synchronous motor designed to rotate on a synchronous motor bracket, the synchronous motor bracket being attached to the foot board; a shaft connected to the synchronous motor, the synchronous motor driving the shaft; a directional axis coupled to the shaft, the directional axis being designed to stabilize the shaft for signal transmission; a plurality of gears inserted into the shaft, wherein the shaft drives the plurality of gears; a plurality of gear racks being positioned to engage the plurality of gears, the plurality of gear racks being mounted on a plurality of guiding rails installed inside the outer shell, the plurality of guiding rails being aligned parallel to each other; a main bracket attached to the plurality of guiding rails, wherein the main bracket moves back and forth along the plurality of guiding rails; a plurality of panel brackets attached to the main bracket, the plurality of panel brackets mounted to the front panel; a pair of insert caps being fitted to the main bracket; a cloth shaft installed between the pair of insert caps; a tube-shaped motor installed on one end of the cloth shaft for driving the cloth shaft; a control panel being installed inside the outer shell, wherein the control panel controls the tube shaped motor; a cloth projector screen attached to the cloth shaft, a top portion of the cloth projector screen being wrapped around the cloth shaft and a lower shaft being affixed to a lower portion of the cloth projector screen; a driving head installed on one end of the cloth shaft, the driving head being inserted into the pair of insert caps; and an approaching switch installed on the backboard of the outer shell being capable to control the movement of the main bracket and serving as a testing and aligning tool; whereby the display screen projecting apparatus, utilizes the cloth projector screen to expand and retract according to the needs of a user.