US 12,234,856 B2
Fastening system
Hermann Benthien, Sottrum (DE); and Andreas Poppe, Reeßum (DE)
Assigned to Airbus Operations GmbH, Hamburg (DE)
Filed by Airbus Operations GmbH, Hamburg (DE)
Filed on Nov. 26, 2021, as Appl. No. 17/535,856.
Claims priority of application No. 10 2020 131 656.9 (DE), filed on Nov. 30, 2020.
Prior Publication US 2022/0170492 A1, Jun. 2, 2022
Int. Cl. F16B 31/00 (2006.01); B64C 7/00 (2006.01); F16B 5/02 (2006.01)
CPC F16B 5/0258 (2013.01) [B64C 7/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A fastening system comprising:
a first fastening element which is attachable to a structure and which comprises:
a first collar configured to be fixed against a first side of the structure; and
a base portion configured for plugging through a structural opening toward a second side of the structure opposing the first side;
a second fastening element comprising a second collar; and
a plastically deformable funnel element, the funnel element having a funnel-like basic shape with a funnel opening;
wherein the funnel element is configured to be positioned between the second fastening element and the first fastening element to guide the second fastening element to the funnel opening and into a receiving opening of the base portion to be fastened therein;
wherein the second collar faces away from the receiving opening and is larger than the funnel opening; and
wherein the second collar is configured to rest tightly on the funnel element such that the funnel element is deformed from the funnel-like basic shape into a flat, disk-like final shape by the second collar of the second fastening element during fastening of the second fastening element.