Patent ID: 9499258
Filing Date: 2016-11-22
CPC Classification: B64C,Y10T

Claim Text:
1. A device for concomitant opening or closing of two flaps of a door of an aircraft retractable landing gear, the two flaps pivoting about two approximately parallel longitudinal pivot axes that define a closing plane of the two flaps, the device comprising: a single actuating means having a length, that is able to open and close the two flaps by modification of the length, the actuating means comprising a fixed end linked at a force-absorbing point to a structure of the aircraft, the actuating means furthermore comprising a movable part that moves substantially orthogonally to the closing plane of the two flaps; and a swinging arm comprising a first end pivotably linked to the structure of the aircraft, and a second end opposite the first end and pivotably linked by a second link to the movable part of the actuating means, the first end pivotably linked about an arm pivot axis and the second link having a degree of rotational freedom about an axis parallel to the arm pivot axis, the device being configured such that the second end of the swinging arm moves away from the closing plane of the two flaps during the extension of the actuating means to close the two flaps, and such that the second end of the swinging arm moves toward the closing plane of the two flaps during retraction of the actuating means to open the two flaps, the second end of the swinging arm furthermore being respectively linked to a first tie rod linked to a first of the two flaps, and to a second tie rod linked to a second of the two flaps.