Suppose you have a set of two gates like so:
Where you only want one of the gates to be in the "open" (non-blocking") position at any given time, this being the other possible state:
How could you go about ensuring that only one of these is open at any given time? (or that they are only both open for a very short duration).
My initial thought was to create a linkage between them, with a middle pivot, but this would not provide a rapid close. Like so (Where the red is a static pin that doesn't move):
The best way of converting this mechanism to be what i desire would be to use the end of the linkage in a mechanism similar to what a switch uses, but that would take up way too much space.
Additionally, it would be ideal if the mechanism could be made with minimal non-3D printed parts (save for something like a generic spring). The closest design I've come across was this design, where the green linkage is snapping between two positions, but I wouldn't even know where to start with using that in the above needed way.
