Rotary lap belt shackle assembly
AssigneeB/E Aerospace, Inc.
InventorsSreekanth Rao, Pradeep Acharya, Mark B. Dowty, Maxime Dempah
Life of this patent
Estimating the term…
Abstract
A rotary lap belt energy attenuator for reducing inertial loads on seat components. In embodiments, a shackle assembly includes a seat frame component, a shackle pivotally attached to the seat component and attachable to a lap belt component, a deformable link attached to the shackle and the seat component, an attachment guide configured to travel along the guideway, and an energy attenuator 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.
Claims15
A lap belt shackle assembly, comprising:
- a seat component defining a guideway;
- a shackle pivotally attached at one end to the seat component and attachable at an opposing end to a lap belt component;
- a deformable link attached at one end to the shackle and at an opposing end to the seat component;
- a guide attached to at least one of the deformable link and the shackle, the guide configured to travel along the guideway;
- and
- an energy attenuator positioned in the guideway;
- wherein at least one of the deformation link and the energy attenuator is configured to undergo plastic deformation as the guide travels along the guideway.
An aircraft passenger seat assembly, comprising:
- a spreader attachable to a backrest and at least one transverse beam tube;
- and
- a lap belt shackle assembly attached to the spreader, comprising:
- a shackle pivotally attached at one end to the spreader and attachable at an opposing end to a lap belt component;
- a deformable link attached at one end to the shackle and at an opposing end to the spreader;
- a guide attached to at least one of the deformable link and the shackle, the guide configured to travel along a guideway formed in the spreader;
- and
- an energy attenuator positioned in the guideway;
- wherein at least one of the deformable link and the energy attenuator is configured to undergo plastic deformation as the guide travels along the guideway.
Dependencies are inferred from the claim text.