US 11,719,020 B2
Fast acting electro-mechanical unlocking device
Fred Guy, Huntington Beach, CA (US)
Assigned to SAFRAN CABIN INC., Huntington Beach, CA (US)
Filed by Safran Cabin Inc., Huntington Beach, CA (US)
Filed on May 17, 2021, as Appl. No. 17/322,070.
Prior Publication US 2022/0364388 A1, Nov. 17, 2022
Int. Cl. E05B 47/00 (2006.01); E05B 83/42 (2014.01); H01F 7/06 (2006.01); H01F 7/08 (2006.01); B64C 1/14 (2006.01)
CPC E05B 47/0006 (2013.01) [E05B 83/42 (2013.01); H01F 7/064 (2013.01); H01F 7/081 (2013.01); B64C 1/1407 (2013.01); E05B 2047/0076 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electro-mechanical unlocking device comprising:
a striker that is movable between a first position and a second position, wherein the striker is configured to maintain a decompression panel in a normal position when the striker is in the first position,
a sear that is movable between a first position and a second position, wherein the sear is biased to the second position, wherein the sear maintains the striker in the first position when the sear is in the first position,
an arming solenoid that includes an energized state and a non-energized state,
an arming assembly that includes an arming armature and an arming link, wherein the arming armature is movable between a first position and a second position, wherein the arming link is movable between a first position and a second position, and wherein the arming armature is biased to the second position,
a crank that is movable between a first position and a second position, wherein the crank is biased to the second position, wherein movement of the arming link from the second position to the first position moves the crank from the second position to the first position,
a holding solenoid that includes an energized state and a non-energized state,
a holding armature that is movable from a first position to a second position,
an unlock spring, wherein movement of the crank from the second position to the first position compresses the unlock spring and moves the holding armature from the second position to the first position,
wherein the electro-mechanical unlocking device includes a locking state, a holding state and an unlocking state,
wherein in the locking state, the arming solenoid switches to the energized state, when the arming solenoid is switched to the energized state, the arming armature and arming link move together from the second position to the first position, the arming assembly moves the crank from the second position to the first position, the crank compresses the unlock spring, which moves the holding armature from the second position to the first position, the holding solenoid switches to the energized state and maintains the holding armature in the first position, and the crank moves the sear from the second position to the first position, whereby the crank blocks movement of the striker from the first position to the second position,
wherein in the holding state, the arming solenoid switches to the de-energized state, when the arming solenoid switches to the de-energized state the arming armature moves from the first position to the second position, thereby opening a gap between a portion of the arming armature and a portion of the arming link, and
wherein in the unlocking state, the holding solenoid switches to the de-energized state, when the holding solenoid switches to the de-energized state the holding armature moves from the first position to the second position, the unlock spring moves the crank from the first position to the second position, and the sear moves from the first position to the second position, thereby unblocking the striker.