babyhog wrote on 09/24/10 at 08:22:48:verslagen1 wrote on 09/23/10 at 21:53:51:Suggestion, make the curved top sheet as you've shown.
On one side, clamp it to the frame as you've shown with the hook, but loose enough to pivot.
On the other side, hook it from the outside and make the hook long enough that as the seat flattens it won't come unhooked.
but then wouldn't your a$$ shift to one side as you bounce? A heavy a$$ would be off center....
I Thought this is a spring to hold up an indendently hinged seat.
So the amount of side shift will be neglectable.
Otherwise, you are sitting on the frame with a little center cush.
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