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1. (WO2018122224) ACTUATOR WITH PASSIVE LOCKING

Pub. No.:    WO/2018/122224    International Application No.:    PCT/EP2017/084592
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Dec 27 00:59:59 CET 2017
IPC: F16H 25/24
F02K 1/76
F16H 25/20
Applicants: SAFRAN ELECTRONICS & DEFENSE
Inventors: BASTIDE, Christophe
OMNES, Pascal
Title: ACTUATOR WITH PASSIVE LOCKING
Abstract:
The invention relates to an electromechanical actuator (1) comprising: - a screw (15) extending along a longitudinal axis; - a nut (19) fitted on the screw (15) and provided with means (24) for connecting to an element (2) to be moved; - a passive locking device (40) for locking in the retracted position of the element (2) to be moved; the passive locking device (40) comprising means for actuating a lock that can selectively adopt a first position in which the lock prevents the screw and the nut from rotating relative to one another, which would result in extension of the element to be moved, and a second position in which the nut is free to rotate, the lock passing from one of the first and second positions to the other of the first and second positions when the element (2) to be moved is taken beyond its retracted position.