Aircraft duplex hinge assembly

Details Aircraft duplex hinge assembly Aircraft duplex hinge assembly

E - Fixed Constructions

05

D

E05D 3/06 (2006.01) B64C 1/14 (2006.01)

Patent

CA 2174634

An aircraft duplex hinge assembly (10 or 10') configured for use in aircraft, especially helicopters, having a compound curvature airframe (130) configuration wherein the edges of access panels (100) and the corresponding airframe apertures have a beveled configuration. The duplex hinge assembly (10 or 10') includes dual hinge mechanisms (20) and a latching mechanism (50) to deactivate the duplex hinge mechanism (10) with the access panel (100) in the closed position. The dual hinge mechanisms (20) include a primary mounting bracket (22) secured in combination with the airframe (130), a secondary mounting bracket (24) secured in combination with the access panel (100), and an interconnecting member (26) having a straight segment (30), an arcuate segment (32), and a protective flat segment (34). The straight and protective flat segments (30, 34) are mounted in rotatable combination with the primary and secondary mounting brackets (22, 24), respectively, and the protective flat segment (34) protects the access panel (100) from damage during opening and closing. One embodiment of the duplex hinge assembly (10) further includes an aft locking subassembly (40) that functions as the primary means for maintaining the access panel (100) in the closed position. Another embodiment of the duplex hinge assembly (10') includes a stabilizing member (60) secured in combination with the interconnecting members (26) and operative to stabilize the hinge mechanisms (20) and the access panel during opening and closing sequencing. Optionally, either embodiment of the duplex hinge assembly (10 or 10') may include a panel support assembly (70) that is operative to support and maintain the access panel (100) in a partially or fully open position.

Ensemble articulation double (10 ou 10') pour aéronefs et plus spécialement pour hélicoptères dont la cellule (130) présente une courbure composée et où les bords du panneau d'accès et les bords de l'ouverture correspondante de la cellule sont biseautés. L'ensemble articulation double (10 ou 10') comporte deux mécanismes d'articulation (20) et un mécanisme de verrouillage (50) qui bloque l'ensemble articulation (10) lorsque le panneau d'accès (100) est en position fermée. Les deux mécanismes d'articulation (20) comportent une première bride de montage (22) fixée à la cellule (130), une deuxième bride de montage (24) fixée au panneau d'accès, et un élément de liaison (26) présentant une section droite (30), une section arquée (32) et une section protectrice plane (34). Les sections droite et protectrice (30, 34) sont respectivement montées pivotantes sur les brides (22, 24) de montage et la section protectrice plane sert à protéger le panneau d'accès contre d'éventuels dommages pendant les opérations d'ouverture et de fermeture. L'une des variantes (10) de l'ensemble articulation double (10) comporte en outre un sous-ensemble de verrouillage arrière (40) servant de moyen principal de maintien du panneau d'accès (100) en position fermée; l'autre variante (10') comporte un élément stabilisateur (60) fixé à l'élément de liaison (26) et servant à stabiliser les mécanismes d'articulation (20) et le panneau d'accès pendant les opérations d'ouverture et de fermeture. Les deux variantes (10 ou 10') peuvent éventuellement comporter une béquille (70) qui maintient le panneau (100) en position ouverte ou partiellement ouverte.

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