Folding Chair 09 March 2021, 19:30 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! It is an application of 4 bar linkage. If yellow rear legs are considered as a stationary link so green front leg link and blue seat are the rockers; pink link is the connecting rod. « previous mechanism Spring Toggle Mechanism next mechanism » Mechanical AND Logic Gate load comments Please enable JavaScript to view the comments.