| US 7,578,477 B2 | ||
| Internal security door for an aircraft | ||
| Clive French, Nottingham (United Kingdom); and Smail Maksen, Grenade (France) | ||
| Assigned to Airbus, Blagnac (France); and Airbus Deutschland GmbH, Hamburg (Germany) | ||
| Filed on Aug. 03, 2005, as Appl. No. 11/195,744. | ||
| Claims priority of provisional application 60/606528, filed on Sep. 02, 2004. | ||
| Claims priority of application No. 04 08578 (FR), filed on Aug. 03, 2004. | ||
| Prior Publication US 2006/0169839 A1, Aug. 03, 2006 | ||
| Int. Cl. B64C 1/14 (2006.01) | ||
| U.S. Cl. 244—129.5 [244/118.5; 244/117 R; 244/129.4; 49/62; 49/31; 49/280] | 23 Claims |
| 1. A security door for an aircraft comprising:
an internal structure in which at least two compartments are located;
a panel mounted in each of the compartments, each panel having at least two opposite edges, and
elastically pre-stressed holding means for each panel in the corresponding compartment, wherein said elastically pre-stressed
holding means release said panel in response to a predetermined load applied to said panel, in a given direction,
wherein each panel includes two plates, a front plate mounted on a front side of the door facing a front of the aircraft and
a rear plate mounted parallel to said front plate and on a rear side of the door facing a rear of the aircraft, said front
and rear plates being independently mounted on the internal structure so as to be separately releasable by said elastically
pre-stressed holding means and such that said front and rear plates move relative to each other upon being released,
wherein, after the predetermined load is applied onto said front plate in the given direction, said elastically pre-stressed
holding means release said front plate before said rear plate is released.
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