Patent ID: 8833693
Filing Date: 2014-09-16
Classification: B64C,F16D

Abstract:
1. An aircraft undercarriage comprising: a strut that carries a steerable bottom portion carrying one or more wheels, and at least one steering actuator carried by the strut to steer the steerable bottom portion in a selective manner, the undercarriage having decoupling means enabling a selective decoupling of the actuator from the strut and selective force transmission means, wherein the decoupling means and the selective force transmission means are embodied in a single unit that comprises: a first element constrained in turning with the steerable bottom portion, and a second element constrained in turning with a portion of the undercarriage that is actuated by the steering actuator that is mounted to move relative to the first element, a friction member being arranged between the first element and the second element to exert a friction force between the two elements, which force presents a maximum value that depends on prestress established by a presser member, and remotely operable control means for varying the prestress imparted by the presser member to the friction member, which control means is operative to substantially release the prestress imparted by the presser member so that the prestress becomes substantially zero.