Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rotatable lock and wing tip device
The locking mechanism 20 has a male locking pin 22, which is received in a female member or lock nut 26, both having threaded portions 32,(fig.4,34) partially extending around their circumferences; the locking mechanism is moved between a locked configuration, where the pin is prevented from being withdrawn along a longitudinal axis of the mechanism by engagement of the threaded portions, to an unlocked configuration, where the pin may be withdrawn, by rotation of at least one of the pin or the nut about their longitudinal axis. The locking mechanism is used in the wing of an aircraft (fig.1A,10), where the locking pin 22 is located in either a fixed wing (fig.1A,14) or a wing tip device (fig.1A,12), with the locking nut located in the other; the mechanism is locked when the wing tip device is in a fight configuration, and unlocked to allow the wing tip device to move into a ground configuration reducing the wingspan of the aeroplane. Preferably, the threaded portions 32,(fig.4,34) are axially spaced ridges along a common helix with the same number of threads on both the pin and the nut. The pin or the nut may have an axially displaced arm (fig.4,38) linked to a linear actuator to drive rotation. The locking pin may be tapered 28 and received through a tapered metalastic bush 36 located in a structural element 24, such a wing spar or rib.
Rotatable lock and wing tip device
The locking mechanism 20 has a male locking pin 22, which is received in a female member or lock nut 26, both having threaded portions 32,(fig.4,34) partially extending around their circumferences; the locking mechanism is moved between a locked configuration, where the pin is prevented from being withdrawn along a longitudinal axis of the mechanism by engagement of the threaded portions, to an unlocked configuration, where the pin may be withdrawn, by rotation of at least one of the pin or the nut about their longitudinal axis. The locking mechanism is used in the wing of an aircraft (fig.1A,10), where the locking pin 22 is located in either a fixed wing (fig.1A,14) or a wing tip device (fig.1A,12), with the locking nut located in the other; the mechanism is locked when the wing tip device is in a fight configuration, and unlocked to allow the wing tip device to move into a ground configuration reducing the wingspan of the aeroplane. Preferably, the threaded portions 32,(fig.4,34) are axially spaced ridges along a common helix with the same number of threads on both the pin and the nut. The pin or the nut may have an axially displaced arm (fig.4,38) linked to a linear actuator to drive rotation. The locking pin may be tapered 28 and received through a tapered metalastic bush 36 located in a structural element 24, such a wing spar or rib.
Rotatable lock and wing tip device
STEPHEN BRIANCOURT (Autor:in)
16.05.2018
Patent
Elektronische Ressource
Englisch