Detection of effort on a flight-control actuator
First Claim
1. A flight-control actuator having a primary path and a secondary path adapted to take up effort of the primary path in the event of failure thereof, the primary path including a screw, the screw terminating in a coupling part of the primary path, the secondary path including a fail-safe effort take-up bar traversing the screw, the bar terminating in a male shape having a functional gap when the primary path is carrying the effort, the male shape placed in a female shape of a coupling part of the secondary path, the male shape terminating the bar and the female shape of the coupling part being spherical or rotational, top coupling of the secondary path being provided by the female shape of the coupling part, an attachment yoke of an aircraft, and a nut and bolt attachment means, the actuator including means for detecting loading of the secondary path,characterised in that said detection means of secondary path loading including at least one sensor adapted to detect an effort (14, 15, 17a, 17b, 20) applied to at least one of the parts (8, 11, 12) performing the top coupling of the secondary path, and adapted to detect stressing of the latter.
1 Assignment
0 Petitions
Accused Products
Abstract
The use of at least one attachment screw (12) that includes means (14, 15, 17a, 17b, 20) for detecting the secondary path loading of a flight-control actuator, or associated with a bush that includes such means, for the attachment of the top coupling of the secondary path of a flight-control actuator.
22 Citations
13 Claims
-
1. A flight-control actuator having a primary path and a secondary path adapted to take up effort of the primary path in the event of failure thereof, the primary path including a screw, the screw terminating in a coupling part of the primary path, the secondary path including a fail-safe effort take-up bar traversing the screw, the bar terminating in a male shape having a functional gap when the primary path is carrying the effort, the male shape placed in a female shape of a coupling part of the secondary path, the male shape terminating the bar and the female shape of the coupling part being spherical or rotational, top coupling of the secondary path being provided by the female shape of the coupling part, an attachment yoke of an aircraft, and a nut and bolt attachment means, the actuator including means for detecting loading of the secondary path,
characterised in that said detection means of secondary path loading including at least one sensor adapted to detect an effort (14, 15, 17a, 17b, 20) applied to at least one of the parts (8, 11, 12) performing the top coupling of the secondary path, and adapted to detect stressing of the latter.
Specification