Door 19 November 2017, 18:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Pink, orange, yellow rockers and blue conrod (door panel) create parallelogram mechanisms that reduce space needed for door opening. This design can be applied for vehicle doors. « previous mechanism Mechanism for Drawing Circle next mechanism » Helix Torus Joint load comments Please enable JavaScript to view the comments.