Lockable wheel actuator disengagement system on an aircraft landing gear

A landing gear (0) for aircraft comprising:

• at least one wheel (R) for the taxiing of the aircraft on the ground;
• a system (1) for rotationally driving the wheel that is mobile between a clutched position with respect to the wheel (R) and a safety position by passing through a declutched position with respect to the wheel;
• and
• a manoeuvring system (3) linked to the driving system (1) to displace the driving system (1) between a declutched position and a clutched position;
• wherein the manoeuvring system comprises an actuator (3a) that can be manoeuvred between first and second extreme configurations of the actuator (3a), the actuator being arranged so that, when the actuator is in the first extreme configuration, the driving system (1) is then held by the actuator (3a) in the declutched position and so that, when the actuator (3a) is in the second extreme configuration, the driving system (1) is then held by the actuator (3a) in the clutched position,
• wherein the landing gear further comprising:
• an elastic return means (4) arranged to exert an elastic return load on the driving system (1) towards a safety position;
• and
• first and second abutments (51a, 52a) arranged to be separated from one another as long as the driving system (1) is away from the safety position and to be in contact with one another when the driving system (1) is in the safety position, the first and second abutments (51a, 52a) being arranged so that, when these abutments are in contact with one another and a load is exerted on the driving system (1) to displace the driving system from the safety position to the declutched position, the abutments oppose the passing of the driving system (1) from the safety position to the declutched position.