US 12,134,464 B2
Uplock provided with retention detection means
Vincent Pascal, Moissy-Cramayel (FR); Ludovic Dufay, Moissy-Cramayel (FR); and Michel Arbentz, Moissy-Cramayel (FR)
Assigned to SAFRAN LANDING SYSTEMS, Velizy Villacoublay (FR)
Appl. No. 17/768,899
Filed by SAFRAN LANDING SYSTEMS, Velizy-Villacoublay (FR)
PCT Filed Oct. 15, 2020, PCT No. PCT/EP2020/079135
§ 371(c)(1), (2) Date Apr. 14, 2022,
PCT Pub. No. WO2021/074349, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 1911648 (FR), filed on Oct. 17, 2019.
Prior Publication US 2024/0101249 A1, Mar. 28, 2024
Int. Cl. B64C 25/28 (2006.01); B64D 45/00 (2006.01)
CPC B64C 25/28 (2013.01) [B64D 45/0005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An uplock for selectively retaining a capture pin of a movable element, the uplock comprising:
a hook which is movable between a release position and a position for retaining the capture pin of the movable element;
a locking member which is movable between a locked position in which the locking member immobilizes the hook in the retaining position and an unlocked position in which the hook is free to be displaced under the force of the capture pin of the movable element;
detection means adapted to detect a situation in which the hook is in the retaining position and the capture pin is present in the hook,
the detection means comprising:
an indicator lever interacting kinematically with the capture pin and movable between a first position indicating the absence of the capture pin in the hook and a second position indicating the presence of the capture pin in the hook; and
a sensor associated with a single target which is movable between two positions so that the sensor emits a signal which is modified when the target passes from one of the positions to the other,
wherein the target is carried by a movable support in kinematic interaction with the locking member and the indicator lever so that the target is held in one of its positions and can only reach and remain in the other of its positions if the locking member is in the locked position and the indicator lever is in the second position indicating the presence of the capture pin in the hook.