Bearing application for fastening step flights in an aircraft

Details Bearing application for fastening step flights in an aircraft Bearing application for fastening step flights in an aircraft

B - Operations, Transporting

64

D

B64D 11/00 (2006.01)

Patent

CA 2681189

The invention relates to a bearing application for staircases (5, 6, 7) in an aircraft (1) with at least two decks (2 to 4). According to the invention at least two bearings (23, 24, 28, 29, 33, 34, 37, 38 and 42, 43, 45, 46), each with at least partially different possibilities of movement about and along or parallel to the x-axis, y-axis and z-axis of a system of coordinates (11), are arranged on each staircase (5, 6, 7) at the lower and upper staircase end (22, 32, 41, 27, 36, 44) (rotatory and/or translational movements). Due to the presence of at least four bearings on each staircase (5, 6, 7), the relative movements between decks (2 to 4) can be compensated for. Consequently the static design of the staircases (5, 6, 7) can be limited to the intrinsic weight and operation-related loads by the mass of the users, thereby providing weight savings.

La présente invention concerne une application de support pour escaliers (5, 6, 7) dans un avion (1) doté d'au moins deux ponts (2 à 4). Conformément à l'invention, au moins deux supports (23, 24, 28, 29, 33, 34, 37, 38 et 42, 43, 45, 46), chacun doté de possibilités de mouvement au moins en partie différentes autour et le long ou parallèlement à l'axe x, l'axe y et l'axe z d'un système de coordonnées (11), sont disposés sur chaque escalier (5, 6, 7) au niveau des extrémités inférieure et supérieure de l'escalier (22, 32, 41, 27, 36, 44) (mouvements de rotation et/ou de translation). Du fait de la présence d'au moins quatre supports sur chaque escalier (5, 6, 7), les mouvements relatifs entre les ponts (2 à 4) peuvent être compensés. La conception statique des escaliers (5, 6, 7) peut être ainsi limitée au poids intrinsèque et aux charges liées au fonctionnement par la masse des utilisateurs, permettant ainsi de réaliser des économies de poids.

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