US 12,031,603 B2
Energy absorber for aircraft seat
Julien Dhermand, Issoudun (FR)
Assigned to Safran Seats, Plaisir (FR)
Appl. No. 16/760,837
Filed by Safran Seats, Plaisir (FR)
PCT Filed Oct. 18, 2018, PCT No. PCT/EP2018/078605
§ 371(c)(1), (2) Date Apr. 30, 2020,
PCT Pub. No. WO2019/086264, PCT Pub. Date May 9, 2019.
Claims priority of application No. 1771148 (FR), filed on Oct. 31, 2017.
Prior Publication US 2020/0262563 A1, Aug. 20, 2020
Int. Cl. F16F 7/12 (2006.01); F16F 1/12 (2006.01); F16F 3/02 (2006.01)
CPC F16F 7/123 (2013.01) [F16F 1/121 (2013.01); F16F 1/128 (2013.01); F16F 3/023 (2013.01); F16F 2224/0208 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An energy absorber for an aircraft seat, notably for a helicopter seat, comprising at least one energy-absorption element having:
a first anchor point and a second anchor point,
an energy-absorption zone extending between the first anchor point and the second anchor point, said energy-absorption zone being able to stretch as a tensile load is applied between the first anchor point and the second anchor point,
characterized in that the energy-absorption zone has a meshed structure comprising a plurality of strands connected to one another by junction portions, and in that at least one junction portion provides a junction between at least three strands of said energy-absorption zone,
the energy-absorption element having an asymmetrical configuration about a tension axis passing through the first anchor point and the second anchor point, wherein in a front view of the energy absorber, the first anchor point and the second anchor point are mutually offset in a vertical direction, and
wherein the tension axis extends at an offset angle relative to the vertical direction,
wherein the first anchor point is aligned with the center of cutouts of a first column of cutouts having a closed contour, and the second anchor point is aligned with the center of cutouts of a second column of cutouts having a closed contour.