ROTARY LAP BELT SHACKLE ASSEMBLY

A rotary lap belt energy attenuator for reducing inertial loads on seat components. In embodiments, a shackle assembly (104) includes a seat frame component (102), a shackle (108) pivotally attached to the seat component and attachable to a lap belt component, a deformable link (110) attached to the shackle and the seat component, an attachment guide (116) configured to travel along a guideway (118), and an energy attenuator (120) positioned in the guideway. In use, each of the deformable link and the energy attenuator undergo plastic deformation during rotary motion of the shackle to attenuate impact energy.