Excuse me folks, this is my folder, made in Hungary, one off. The bike I like. I'd appreciate your feedback.
The specially selected position and angle of the hinge makes the two wheels to arrive next to each other in co-axial positions, that enables easy rolling when folded. For this the steering is fixed in a matching angle. Folding is light because you do not lift the bike up from the ground, but you use the wheels to roll the thing together.
Also, please note the seat frame closes down next to the chain stays during the folding.
So this is a 3D and connected folding.
I know the bike is rough and could be nicer looking. Maybe next version. This time I was focusing on the folding system and the geometry.
https://www.youtube.com/watch?v=8w6KqlWHE90