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SELECTIVE FORCE TRANSMISSION DEVICE AND AN UNDERCARRIAGE CONSISTING OF AN APPLICATION THEREOF

  • US 20120091264A1
  • Filed: 04/06/2010
  • Published: 04/19/2012
  • Est. Priority Date: 04/06/2009
  • Status: Active Grant
First Claim
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1. An aircraft undercarriage including 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 selective manner, the undercarriage including a selective force transmission device that comprises a first element and a second element 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, the device including control means for varying the prestress imparted by the presser member to the friction member, which control means are arranged to be capable of substantially releasing the prestress imparted by the presser member so that the prestress becomes substantially zero, the device being arranged on the undercarriage in such a manner that the first element of the transmission device is constrained in turning with the steerable bottom portion, and the second element of the transmission device is constrained in turning with a portion of the undercarriage that is actuated by the steering actuator.

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