ACTUATOR-CONTROLLED SECURE CORSET FOR FLAP IMMOBILIZATION, IN PARTICULAR AIRCRAFT HATCH ACTUATOR CORSET, AND IMMOBILIZATION METHOD USING SUCH A CORSET

摘要

The invention aims to secure and control the positioning of the corset on the actuator piston, and also the deployment of the hatches as far as the maximum opening position thereof and the maintenance thereof in this position. To this end, the invention provides the possibility of regulating the length of the corset. A secure corset (4) according to the invention is applied in particular to the immobilization in the maximum opening position of an aircraft landing gear cage hatch (21). The corset (4) has two half-shells (41) that are able to enclose the piston (31) of the actuator (3) having an axis coincident with the common longitudinal axis (A'A) of the half-shells (41) once they are closed around the piston. Locking pins (5) are able to hold the half-shells (41) around the actuator (3). The corset (4) also has a casing (6) secured to at least one of the half-shells (41) and equipped with hooking means (8a) that are able to be coupled to a fixed point (F) on the structure (2). Means (7, 7a, 7b) for varying the distance between the casing (6) and the hooking means (8a) are able to move the hooking means (8a) away from or towards the corset (4) along the common longitudinal axis (A'A) of the half-shells (41).