How well would this 3-link work

This is just an idea i have in my head how well could this work please post constructive critisism im trying to get this down. Everthing circled in red would have a pivoting point only. the blue circles would be weled non-moveable with the bridge and bags over the axle.http://www.geocities.com/tfcmurdogclan/3-link.jpg.bmp