The leg brace is attached to the seat with hinges so that when we stow the seat, we un-clip the brace from the leg. We fold the brace down, the right hand photo, and then we fold the leg under.

Because the seat tilts up at about a 10 degree angle that same angle must be used if the leg will be at a right angle to the deck. So to keep the leg from folding back, the block is in the way. and to keep the leg from flipping forward, the aluminum strap, 1/2 x 1/16 holds the leg back against the block.

I need to get these installed this weekend so I can test and prove them out once and for all.