Landing gear for an aircraft

Patent metadata

Field	Value
Publication number	US-9499259-B2
Application number	US-201414577041-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Dec 19, 2013
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A landing gear has a rigid structure and a gear compartment. A leg has a wheeled first end on a rolling shaft, and a second end secured on the rigid structure. The leg rotates between a rolling position, letting the aircraft rolls, and a landing gear storage position. A brace has a first end secured on the rigid structure. A guide bar has a first end pivotably secured on the leg, and a second end secured on the second end of the brace by a pivot shaft. A jack is secured between the brace by a pivot connection with a shaft parallel to the rolling shaft, and the guide bar, by a pivot connection with a shaft parallel to the rolling shaft. A locking system locks either a second end of the brace or the second end of the guide bar against the leg in the rolling position.

First claim

The invention claimed is:

1. A landing gear for an aircraft, with a rigid structure and a gear compartment, the landing gear comprising:
a leg with a first end, on which there is secured at least one wheel which is mobile in rotation around a rolling shaft, and a second end which is structured to be secured on the rigid structure by a pivot connection with a shaft parallel to the rolling shaft, the leg being mobile in rotation between a rolling position, in which the leg and the wheel ensure that the aircraft rolls, and a storage position in which the landing gear is accommodated in the gear compartment;
a brace with a first end which is structured to be secured on the rigid structure by a pivot connection with a shaft parallel to the rolling shaft, and a second end;
a guide bar with a first end secured on the leg by a pivot connection with a shaft parallel to the rolling shaft, and a second end secured on the second end of the brace by a pivot connection with a shaft parallel to the rolling shaft;
a jack secured between the brace, by a pivot connection with a shaft parallel to the rolling shaft, and the guide bar, by a pivot connection with a shaft parallel to the rolling shaft; and
a locking system which is structured to lock at least one of the second end of the brace, or the second end of the guide bar, against the leg, when the leg is in the rolling position.

2. The landing gear gear according to claim 1 , characterized in that the guide bar and the jack are at the rear of the leg relative to the direction of displacement of the leg during its passage from the rolling position to the storage position.

3. The landing gear gear according to claim 2 , characterized in that the first end of the guide bar is secured on the leg at a higher position than the position of the second end of the guide bar, when the leg is in the rolling position.

4. The landing gear according to claim 3 , characterized in that, in the rolling position, the guide bar is substantially parallel to the leg.

5. An aircraft comprising a rigid structure, a gear compartment and a landing gear according to claim 1 .

Assignees

• Airbus Operations Sas
• Airbus Operations Sas

Inventors

• Guering Bernard

Classifications

• B64C25/26

  Control or locking systems therefor · CPC title

• B64C25/20 Primary

  mechanical · CPC title

• B64C25/14

  fore-and-aft · CPC title