US 12,065,253 B2
Emergency device actuation assemblies and aircraft including same
João Carlos Livoratti, São José dos Campos—SP (BR); Carlo Rodrigo de Faria Marastoni, São José dos Campos—SP (BR); Mariana Camargo Dos Reis, São José dos Campos—SP (BR); and Juliana Fabricio Rodrigues, São José dos Campos—SP (BR)
Assigned to EMBRAER S.A., São José dos Campos—SP (BR)
Filed by EMBRAER S.A., São José dos Campos—SP (BR)
Filed on Dec. 21, 2021, as Appl. No. 17/557,347.
Prior Publication US 2023/0192302 A1, Jun. 22, 2023
Int. Cl. B64D 25/16 (2006.01); B64C 1/14 (2006.01); E05C 19/14 (2006.01)
CPC B64D 25/16 (2013.01) [B64C 1/1461 (2013.01); E05C 19/145 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An actuation assembly to allow access to an on-board emergency device removably positioned within a device bay of a vehicle and normally covered by an access panel, the actuation assembly comprising:
a rotatable actuation shaft;
a manually operated actuation lever fixed to the actuation shaft so as to rotate the actuation shaft in response to movement of the actuation lever between stowed and deployed conditions thereof; and
a safety locking system operably connected to the rotatable shaft and having a locked condition which prevents operation of the actuation lever to thereby maintain the actuation assembly in a safe mode during normal vehicle operation, and an armed mode which allows the actuation lever to be moved into the deployed condition thereof, wherein the safety locking system comprises:
(i) a manually operated lock button;
(ii) at least one safety latch carried by the actuation shaft so as to be rotatable therewith;
(iii) at least one latch stop mounted for rotatable movement into engaged and disengaged positions relative to the at least one safety latch; and
(iv) a linkage assembly interconnecting the lock button and the at least one latch stop, wherein
operation of the lock button responsively causes the at least one latch stop to be rotatably moved from the engaged position and into the disengaged position thereby by the interconnecting linkage assembly whereby the actuation lever may be operated to rotate the actuation shaft.