Device for indicating incorrect closure of locking means located between two fan cowlings of an aircraft engine nacelle
AssigneeAirbus France
InventorAlain Porte
Life of this patent
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Abstract
The invention concerns a device (16) for indicating incorrect closure of locking means consisting of a plurality of locking mechanisms (14) located between two fan cowlings (6) of an aircraft engine nacelle, the device including a body able to adopt, relative to the cowlings, a retracted position as well as a protruding position providing a warning of incorrect closure. According to the invention, the body of the device is able to cover at least partially at least two locking mechanisms (14) when it is in its retracted position, the retracted position being exclusively anthorised when each locking mechanism able to be at least partially covered by the body of the device is locked.
Claims12
1- A device (16) for indicating incorrect closure of locking means consisting of a plurality of locking mechanisms (14, 14a, 14b) located between two fan cowlings (6, 8) of an aircraft engine nacelle, said device (16) including a body (18, 118, 218) able to adopt, relative to the said cowlings (6, 8), a retracted position as well as a protruding position providing a warning of incorrect closure, characterised in that the body (18, 118, 218) of the device (16) is able to cover at least partially at least two locking mechanisms (14, 14a, 14b) when it is in the retracted position, said retracted position being exclusively authorised when each locking mechanism (14, 14a, 14b) able to be at least partially covered by the body (18, 118, 218) of the device (16) is locked.
2- A device (16) according to claim 1, characterised in that each of the locking mechanisms (14, 14a, 14b) not locked and able to be at least partially covered by the body (18, 118, 218) of the device (16) constitutes a stop for this body (18, 118, 218), when moving it from its protruding position to its retracted position.
3- A device (16) according to claim 1 or claim 2, characterised in that in its retracted position, the said body (18, 118, 218) of the device (16) covers at least partially each one of the locking mechanisms (14, 14a, 14b) which constitute the locking means and is in contact with at least one of the said two cowlings (6, 8).
4- A device (16) according to any one of the preceding claims, characterised in that said body (18) of the device (16) is mounted freely articulated from one end of one of said two cowlings (6, 8).
5- A device (16) according to claim 4, characterised in that the device (16) includes closing means (22, 24) able to secure the said body (18) of the device (16) to the other of said two cowlings (6, 8).
6- A device (16) according to any one of the preceding claims, characterised in that said body (18) of the device includes a first part (18a) intended to cover each of the locking mechanisms (14) constituting the locking means when said body (18) of the device (16) is in its retracted position, and a second part (18b) intended to warn of incorrect closure when said body (18) of the device (16) is in its protruding position.
7- A device (16) according to any one of claims 1 to 3, characterised in that said body (118) of the device (16) is mounted freely articulated from an external part (32) of said two cowlings (6, 8).
8- A device (16) according to claim 7, characterised in that the device (16) includes closing means (38) able to secure said body (118) of the device (16) to at least one of said two cowlings (6, 8).
9- A device (16) according to claim 7 or claim 8, characterised in that said body (118) of the device (16) is intended on the one hand to cover each one of the locking mechanisms (14a, 14b) constituting the locking means when said body (118) of the device (16) is in its retracted position, and on the other hand to warn of incorrect closure when said body (118) of the device (16) is in its protruding position.
10- A device (16) according to any one of the preceding claims, characterised in that the body (18, 118, 218) of the device (16) includes means of enhancing its visibility.
11- A device (16) according to any of the preceding claims, characterised in that each of the locking mechanisms (14, 14a, 14b) able to be at least partially covered by the body (18, 118, 218) of the device (16) includes a movable handle (15a) driving a hook (15b), said handle (15a) constituting, when the locking mechanism (14, 14a, 14b) is not locked, a stop for the body (18, 118, 218) of the device (16) when moving it from its protruding position to its retracted position.
12- A device (16) according to claim 11, characterised in that the body (18, 118, 218) of the device (16) is able to cover a predetermined number greater than or equal to two locking mechanisms, said when predetermined number of locking mechanisms being sufficient to withstand the loads generated by the aerodynamic flow in flight.