Emergency opening device for an aircraft door, comprising a telescopic operating member
An emergency opening device for an aircraft door provided with an opening mechanism including an actuating device ( 2, 5 ) for the opening mechanism, which includes a tubular operating member ( 2 ); elastic compression device ( 5 ); an activation device ( 31 ) for the actuation device ( 2,5 ); the operating member ( 2 ) includes a first end element ( 10 ) and a second end element ( 11 ) which are freely translatable movable relative to each other along the movement axis (X).
1. An emergency opening device for an aircraft door fitted with an opening mechanism, the device comprising:
an actuating device ( 2 , 5 ) to actuate the opening mechanism, which switch between a passive state and an active state of activating the opening mechanism, and which comprise: a tubular operating member ( 2 ) provided with a first end ( 3 ) connected to the door, and with a locking second end ( 4 ); an elastic compression device ( 5 ) arranged between a fixed end-stop element ( 6 ) and the operating member ( 2 ); a retainer for restraining the locking second end ( 4 ) to move between a closed position of locking of the locking second end ( 4 ), in a position of the operating member ( 2 ) corresponding to the passive state of the actuating device in which position the elastic device ( 5 ) are kept compressed, and an open position of releasing of the locking second end ( 4 ) allowing the operating member ( 2 ) to move along an axis of movement (X) toward a position corresponding to the active state of the actuating device, under the effect of the force resulting from the expansion of the elastic device ( 5 );
an activating device for activating the actuating device ( 2 , 5 ) designed to bring about the opening of the retainer;
the emergency opening device comprising:
a first-end element ( 10 ) and a second-end element ( 11 ) which are able to move freely relative to one another in translation along the axis of movement (X), the first end ( 3 ) of the operating member ( 2 ) being situated on the first-end element ( 10 ) and the locking second end ( 4 ) of the operating member ( 2 ) being situated on the second-end element ( 11 );
the fixed end-stop element ( 6 ) comprises a fixing device ( 18 ) for fixing it to an aircraft door element;
an axis cylinder ( 15 ) extending along the axis of movement (X) is fixed to the fixed end-stop element ( 6 ), the second-end element ( 11 ) being mounted with the ability to slide along the axis of movement (X) on the axis cylinder ( 15 );
the retainer comprises a rotary latch ( 9 ) that opens under load capable of rotational motion about the axis of movement (X), the rotary latch ( 9 ) being axially fixed on the axis cylinder ( 15 ) between two axial end-stops, the rotary latch ( 9 ) being in non-sliding pivoting connection with the axis cylinder ( 15 ), the rotary latch ( 9 ) comprising at least one blade ( 27 ) extending parallel to the axis of movement (X) and designed to retain, by traction on a stop surface ( 30 , 43 ), the locking second end ( 4 ) of the second-end element ( 11 );
the activating device of the actuating device ( 2 , 5 ) comprise a lever ( 31 ) solidly attached to the rotary latch ( 9 ) and allowing the latch ( 9 ) to be forced to rotate.
2. The device as claimed in claim 1 , wherein the first-end element ( 10 ) and the second-end element ( 11 ) are mounted slidingly on one another.
3. The device as claimed in claim 1 , wherein the first-end element ( 10 ) and the second-end element ( 11 ) are nested one inside the other.
4. The device as claimed in claim 3 , wherein the first-end element ( 10 ) and the second-end element ( 11 ) includes tubular elements.
5. The device as claimed in claim 4 , wherein the first-end element ( 10 ) and the second-end element ( 11 ) includes tubes, the tube constituting the first-end element ( 10 ) being inserted inside the tube constituting the second-end element ( 11 ).
6. The device as claimed in claim 3 , wherein the operating member ( 2 ) comprises a sliding bearing ( 12 ) allowing the first-end element ( 10 ) to slide over the second-end element ( 11 ).
7. The device as claimed in claim 1 , wherein the second-end element ( 11 ) comprises abutment means ( 8 ) for the elastic device ( 5 ).
8. The device as claimed in claim 7 , wherein the abutment means for the elastic device comprise a flange ( 8 ) solidly attached to the second-end element ( 11 ).
9. The device as claimed in claim 7 , wherein the elastic device ( 5 ) is positioned between the fixed end-stop element ( 6 ) and the abutment device ( 8 ).
10. The device as claimed in claim 7 , wherein the first-end element ( 10 ) comprises an end-stop ( 13 ) collaborating with the abutment device ( 8 ) so that when the actuating device are in the active state, the second-end element ( 11 ) drives the first-end element ( 10 ).
11. The device as claimed in claim 10 , wherein the end-stop comprises a flange ( 13 ) solidly attached to the second-end element ( 11 ).
12. The device as claimed claim 1 , wherein the second-end element ( 11 ) comprises a sliding portion ( 17 ) tailored to fit the axis cylinder ( 15 ).
13. The device as claimed in claim 12 , wherein the sliding portion ( 17 ) comprises a sliding bearing ( 37 ).
14. The device as claimed in claim 1 , wherein the second-end element ( 11 ) is mounted with the ability to slide inside the axis cylinder ( 15 ).
15. The device as claimed in claim 14 , wherein the second-end element ( 11 ) comprises a sliding portion ( 17 ) tailored to fit the axis cylinder ( 15 ).
16. The device as claimed in claim 1 , wherein further comprises an end-of-travel stop ( 21 ) for the sliding of the operating member ( 2 ) with respect to the axis cylinder ( 15 ).
17. The device as claimed in claim 1 , wherein the first-end element ( 10 ) comprises coupling device for coupling the device ( 1 ) to the door.
18. The device as claimed in claim 1 , wherein the first-end element comprises a condensate discharge hole ( 35 ).