Patent ID: 11919618
Assignee: LATECOERE
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. An aircraft pressurized cabin door comprising:
an exterior panel (2); and
a door structure (3) which comprises:
two circumferential beams (4) attached to the side edges of the door;
a plurality of longitudinal beams (5a, 5b) arranged perpendicularly to the circumferential beams (4) and attached to the exterior panel (2), each longitudinal beam (5a, 5b) extending from one circumferential beam (4) to the other, and each longitudinal beam (5a, 5b) comprising: a first end coming into contact with one of the circumferential beams (4); and a second end which comes into contact with the other circumferential beam (4);
wherein each longitudinal beam (5a, 5b) has an open cross-section whose opening faces the exterior panel (2), the opening being closed by the inner face of the exterior panel (2) on which the longitudinal beam (5a, 5b) is attached, at least one longitudinal beam (5b) having a variable cross-section, in two directions (Y, Z) perpendicular to the direction in which the longitudinal beam (5b) extends, a cross: section that increases continuously from the ends (B, M) of the beam towards the middle (H, L) of the beam, the variable cross-section longitudinal beam (5b) having two support bars (6) attached to the exterior panel (2), the support bars (6) extending over the entire length of the longitudinal beam (5b), on either side of said opening, the two support bars being curved and each having a concavity facing the concavity of the other support bar (6).