Drive for car movable trivision billboards

The bendable billboards are attached to two parallel tooth belts and the brown motor moves them periodically. The billboards are displayed on three surfaces of the car (side and back). In 1 rev. of yellow shaft each tooth belt moves a half of its length. So on each car surface two different posters can be displayed alternately. Tooth uncompleted gear is used for creating interrupted rotation. Inventor files of this video: http://www.mediafire.com/download/vguea333bqe92q8/CarTrivisionBillboardInv.zip

• #فناوری_و_رایانه
• #interrupted_rotation
• #gear
• #mechanism