Bar for a braked aircraft wheel

Patent metadata

Field	Value
Publication number	US-12372128-B2
Application number	US-202017596550-A
Country	US
Kind code	B2
Filing date	Jun 12, 2020
Priority date	Jun 14, 2019
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

The invention relates to a bar ( 10 ) for a braked aircraft wheel ( 103 ), the bar being for fitting to a rim ( 104 ) of the wheel in order to drive rotor brake disks ( 106 b ) in rotation. The bar comprises a substantially rectilinear body ( 11 ) having at least one segment ( 14 ) including two wings ( 15 ) connected together by a core ( 16 ) and intended to co-operate with the rotor disks. At least one brace element ( 17 ) connects a free edge of each of the wings to a central portion of the core.

First claim

The invention claimed is:

1. A bar for a braked aircraft wheel, the bar being for fitting to a rim of the wheel in order to drive rotor brake disks in rotation, the bar comprising:
a substantially rectilinear body having at least one segment including two wings which have:
inside faces that are connected together by a core extending from the inside face of one of the two wings to the inside face of the other of the two wings, and
outside faces that are opposed to the inside faces and intended to co-operate with the rotor disks,
wherein the bar includes at least one brace element connecting a free edge of the inside face of one of the two wings to a central portion of the core without connecting the rest of the one of the two wings to the rest of the core, the brace element being integrally formed with said free edge and said central portion and defining with the core and said one of the two wings only one channel that extends in a longitudinal direction relative to the body and has a closed cross-section.

2. The bar according to claim 1 , wherein the brace element is a wall extending in a longitudinal direction of the bar from said free edge of the inside face of one of the two wings to the central portion of the core.

3. The bar according to claim 1 , wherein a portion of the body forms a fastener wedge for fastening the bar to the rim.

4. The bar according to claim 3 , wherein said portion of the body forming the wedge includes recesses.

5. The bar according to claim 1 , wherein a portion of the body includes a trellis structure.

6. A braked aircraft wheel comprising a rim having an inner periphery defining a space for receiving both rotor brake disks and a plurality of bars according to claim 1 fastened to the rim in order to constrain the rotor brake disks to rotate with the rim.

7. A landing gear including at least one of the braked aircraft wheel according to claim 6 .

8. An aircraft including the landing gear according to claim 7 .

9. A method of fabricating a bar according to claim 1 , said method comprising at least one operation of fabricating the body of the bar by additive fabrication.

10. The method according to claim 9 , wherein the additive fabrication operation is performed in such a manner as to obtain the bar in a vertical position.

11. The method according to claim 9 , wherein the additive fabrication operation is performed to obtain the bar in a horizontal position, and
wherein the method includes making a trellis structure supporting a wall of the body of the bar.

12. The method according to claim 9 , wherein the additive fabrication operation makes use of laser beam melting on a bed of powder.

13. The method according to claim 12 , wherein the powder is an Inconel® alloy powder.

14. The bar according to claim 1 , wherein the inside face of each of the two wings has a bottom portion and a top portion which extend on opposite sides of the core.

15. The bar according to claim 14 , wherein the at least one brace element connects the free edges of the top portions of the inside face of the two wings to the central portion of the core.

16. The bar according to claim 1 , wherein the at least one segment is a cross-section that is symmetrical about a midplane of the body.

17. A bar for a braked aircraft wheel, the bar being for fitting to a rim of the wheel in order to drive rotor brake disks in rotation, the bar comprising:
a substantially rectilinear body having at least one segment including two wings which have:
inside faces that are connected together by a core extending from the inside face of one of the two wings to the inside face of the other of the two wings, and
outside faces that are opposed to the inside faces and intended to co-operate with the rotor disks,
wherein the bar includes at least one brace element connecting a free edge of the inside face of one of the two wings to a central portion of the core without connecting the rest of the one of the two wings to the rest of the core,
the brace element being integrally formed with said free edge and said central portion and defining with the core and said one of the two wings only one tubular channel that extends in a longitudinal direction relative to the body.

Assignees

• Safran Landing Systems

Inventors

• Soula Aurélie
• Palazzoli Patrice
• Daulny Alexandre
• Caraty Arnaud

Classifications

• F16D2250/00

  Manufacturing; Assembly · CPC title

• F16D2065/1392

  Connection elements · CPC title

• F16D2065/138

  to wheel · CPC title

• F16D2065/1364

  with relative movement axially · CPC title

• F16D55/36

  Brakes with a plurality of rotating discs all lying side by side · CPC title