US 12,258,119 B2
Control unit resistive and locking system
Pierre-Alex Picard, Figeac (FR)
Assigned to RATIER-FIGEAC SAS, Figeac (FR)
Filed by Ratier-Figeac SAS, Figeac (FR)
Filed on Nov. 16, 2023, as Appl. No. 18/511,275.
Claims priority of application No. 22306716 (EP), filed on Nov. 22, 2022.
Prior Publication US 2024/0166337 A1, May 23, 2024
Int. Cl. B64C 13/14 (2006.01); B64C 13/04 (2006.01)
CPC B64C 13/14 (2013.01) [B64C 13/0421 (2018.01); B64C 13/044 (2018.01)] 16 Claims
OG exemplary drawing
 
1. A resistive and locking system for hindering the rotation of a shaft and locking rotation of the shaft, the system comprising:
a housing defining an axis AX therethrough, the housing containing:
a drive shaft mounted rotatably in the housing along the axis and extending axially from one end of the housing;
a first stage comprising a resistive mechanism provided in the housing around the drive shaft and configured to hinder rotation of the drive shaft relative to the housing, the resistive mechanism has interacting stator and rotor parts, the rotor part being fixed to the drive shaft and the stator part being fixed to the housing; and
a second stage comprising a locking mechanism arranged in the housing axially above the first stage, the locking mechanism being in a default configuration biased axially to frictionally engage with and lock the rotor part of the resistive mechanism to prevent rotation of the drive shaft, the locking mechanism including a magnetic unlocking mechanism configured to remove the frictional engagement with the resistive mechanism on application of power to the locking mechanism.