[From Graham Butler July 2 2010]
Here are some screen shots of what I have been working on. I think that we can make the seat fold back using a push pin system as shown. It is simple.
Images also show how the bearings will be assembled. Bearings will press in, and then be screwed into the frame using a shoulder bolt. All we will need is to thread the frame. There is also a spacer on the inside to keep the bearing the correct distance from the frame.
Images also show the upper linkage arm with the steel subframe bolted to it. It is a lot of hardware, but I think that we are going to need a lot of small hardware to hold it in place. A couple of larger bolts will just bend the aluminum arm.