Rigging chain to link plate & schackle

[luismestre]

Hi

I need some help to make a rigging for a Chain connected to a shackle & a link plate.

( see image in attachment).

I have tried with bones & look at constraint. My main problems are:

- With bones I can link all the parts and apply the IK in certain points but the last end bone I can't make it pivoting like teh 1st bone.

- With look at constraint I make to sets of bones ( left & right ) & apply a look at contraint to the link plate, the problem here is, the link plate have 2 pivots points, I'm able to make 1 pivot following the bones but the other one no.

I guess is a simple rigging but I cant figure out.

Regards

Luis Mestre