US 12,103,666 B2
Aircraft landing gear assembly
Mark Bevan, Gloucester (GB); Pierre-Etienne Dandaleix, Gloucester (GB); Jorge Juesas Portoles, Gloucester (GB); and Robert Kyle Schmidt, Gloucester (GB)
Assigned to SAFRAN LANDING SYSTEMS CANADA INC., (CA); and SAFRAN LANDING SYSTEMS UK LTD, (GB)
Appl. No. 17/908,747
Filed by SAFRAN LANDING SYSTEMS UK LTD, Gloucester (GB); and SAFRAN LANDING SYSTEMS CANADA INC, Ajax (CA)
PCT Filed Feb. 26, 2021, PCT No. PCT/EP2021/054824
§ 371(c)(1), (2) Date Sep. 1, 2022,
PCT Pub. No. WO2021/175712, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 20160347 (EP), filed on Mar. 2, 2020.
Prior Publication US 2023/0124974 A1, Apr. 20, 2023
Int. Cl. B64C 25/20 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B64C 25/62 (2006.01); F16F 1/368 (2006.01)
CPC B64C 25/20 (2013.01) [B32B 5/02 (2013.01); B32B 5/26 (2013.01); B64C 25/62 (2013.01); F16F 1/3686 (2013.01); B32B 2250/20 (2013.01); B32B 2250/44 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2605/18 (2013.01); F16F 2224/0241 (2013.01); F16F 2238/022 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An aircraft landing gear assembly comprising:
a first landing gear element movably coupled relative to a second landing gear element to move between a first condition and a second condition;
a fibre composite leaf spring formed from a plurality of composite layers and arranged between the first and second elements, the leaf spring being arranged to bend when the first element moves from the first condition to the second condition, wherein the fibre composite leaf spring comprises a first region and a second region, wherein the number of composite layers in the first region is greater than the number of composite layers in the second region; and
a mounting assembly arranged to engage the first region of the leaf spring to couple the leaf spring to the first landing gear element, wherein the fibre composite leaf spring further comprises two outer composite layers separated by one or more inner composite layers, wherein at least one of the one or more inner layers is shorter in length than the outer layers and resides within the first region of the leaf spring such that the number of layers in the first region of the leaf spring is greater than the number of layers in the second region of the leaf spring.