Connecting device comprising two off-center rings with a frustoconical and/or spherical bearing surface, aircraft or aircraft floor comprising at least two portions connected by at least one such connecting device

Patent metadata

Field	Value
Publication number	US-12319440-B2
Application number	US-202318160606-A
Country	US
Kind code	B2
Filing date	Jan 27, 2023
Priority date	Jan 31, 2022
Publication date	Jun 3, 2025
Grant date	Jun 3, 2025

Abstract

A connecting device including first and second off-center rings, the second ring being positioned in the first ring. The peripheral outer surface of the first ring is frustoconical and has a smaller cross section oriented in a first direction, and the inner surface of the first ring and the outer surface of the second ring, which surfaces interact with one another, have cross sections which increase between a first cross section and a second cross section that is offset in relation to the first cross section in an opposite direction to the first direction. This arrangement makes it possible to be able to prevent the rotation of the first and second rings once their angular positioning has been adjusted.

First claim

The invention claimed is:

1. A tool for mounting a connecting device to obtain an assembly comprising at least first and second parts, the connecting device comprising
a first ring,
a second ring, and
a connecting element having a shaft,
the first ring having a first peripheral outer surface configured to interact with a peripheral inner wall of a first through-hole of the first part of the assembly, a first passage orifice delimited by a first peripheral inner surface configured to interact with the second ring, and first and second transverse faces, the first peripheral inner and outer surfaces being off-center,
the second ring having a second peripheral outer surface interacting with the first peripheral inner surface of the first ring, a second passage orifice delimited by a second peripheral inner surface and configured to receive a portion of the shaft of the connecting element during operation, and first and second transverse faces, the second peripheral inner and outer walls being off-center,
the first and second rings having shapes exhibiting symmetry of revolution about an axis of revolution parallel to a longitudinal direction;
the first peripheral outer surface of the first ring being frustoconical such that a first cross-sectional area of the first ring taken transverse to the longitudinal direction is smaller at the second transverse face of the first ring than a second cross-sectional area of the first ring taken transverse to the longitudinal direction at the first transverse face;
the first passage orifice has a first cross-sectional area at the first transverse face of the first ring taken transverse to the longitudinal direction that is less than a second cross-sectional area of the first passage orifice taken transverse to the longitudinal direction and parallel to the first cross-sectional area and spaced therefrom;

wherein the mounting tool comprises an axial tension system configured to apply a tensile force to at least the second ring in a direction parallel to the longitudinal direction, going from the first transverse faces towards the second transverse faces, to prevent a rotation of the first and second rings.

2. The mounting tool according to claim 1 , wherein the mounting tool comprises at least one system for adjusting the angular positioning of at least one of the first and second rings.

3. The mounting tool according to claim 2 , wherein the angular positioning adjustment system comprises
a first portion configured to pivot the first ring,
a first coupling system for temporarily rotationally coupling the first portion and the first ring,
a second portion configured to pivot the second ring, and
a second coupling system for temporarily rotationally coupling the second portion and the second ring.

4. The mounting tool according to claim 3 , wherein the mounting tool comprises a centering system having a centering shaft which extends between first and second ends and has a diameter identical to that of the shaft of the connecting element, said centering shaft being configured to be received in the second passage orifice of the second ring during operation.

5. The mounting tool according to claim 4 , wherein the centering system:
comprises a flange integral with the centering shaft,
has a cross section greater than that of the centering shaft,
is spaced apart from the first and second ends of the centering shaft, and
has a first transverse surface, which is oriented towards the first end of the centering shaft and is configured to be pressed against the first transverse face of the second ring during operation, and a second transverse surface, which is oriented towards the second end of the centering shaft.

6. The mounting tool according to claim 5 , wherein the first portion is formed as a first pivoting ring which comprises first and second transverse surfaces, an outer wall and an inner wall; during operation, the flange being positioned on the inside of the inner wall of the first pivoting ring and the first transverse surface of said first pivoting ring being pressed against the first transverse face of the first ring.

7. The mounting tool according to claim 6 , wherein the second portion comprises a second pivoting ring connected to the second end of the centering shaft.

8. The mounting tool according to claim 6 , wherein the first coupling system comprises at least one recessed impression, which is positioned on a first surface from among the first transverse surface of the first pivoting ring and the first transverse face of the first ring, and at least one lug, which is configured to be received in a recessed impression and is positioned on a second surface, different from the first surface, from among the first transverse surface of the first pivoting ring and the first transverse face of the first ring.

9. The mounting tool according to claim 5 , wherein the second coupling system comprises:
at least one recessed impression, which is positioned on a first surface from among the first transverse surface of the flange and the first transverse face of the second ring, and
at least one lug, which is configured to be received in a recessed impression and is positioned on a second surface, different from the first surface, from among the first transverse surface of the flange and the first transverse face of the second ring.

10. The mounting tool according to claim 9 , wherein the axial tension system comprises:
a bearing part, which is sheathed around the centering shaft and configured to bear against the second surface of the second part, and
a screw configured to be screwed in a tapped hole provided at the first end of the centering shaft and to bear against the bearing part.

11. A tool for mounting a connecting device to obtain an assembly comprising at least first and second parts, the connecting device comprising
a first ring,
a second ring, and
a connecting element having a shaft,
the first ring having a first peripheral outer surface configured to interact with a peripheral inner wall of a first through-hole of the first part of the assembly, a first passage orifice delimited by a first peripheral inner surface configured to interact with the second ring, and first and second transverse faces, the first peripheral inner and outer surfaces being off-center,
the second ring having a second peripheral outer surface interacting with the first peripheral inner surface of the first ring, a second passage orifice delimited by a second peripheral inner surface and configured to receive a portion of the shaft of the connecting element during operation, and first and second transverse faces, the second peripheral inner and outer walls being off-center,
the first and second rings having shapes exhibiting symmetry of revolution about an axis of revolution parallel to a longitudinal direction;
the first peripheral outer surface of the first ring being frustoconical and such that a first cross-sectional area of the first ring is smaller at the second transverse face of the first ring than a second cross-sectional area of the first ring at the first transverse face;
the first passage delimited by the first peripheral inner surface of the first ring has a first cross-sectional area at the first transverse face of the first ring that is greater than a second cross-sectional area of the first passage taken parallel to the first cross-sectional area and spaced therefrom;

wherein the mounting tool comprises an axial tension system configured to apply a tensile force to at least the second ring in a direction parallel to the longitudinal direction, going from the first transverse faces towards the second transverse faces, to prevent a rotatio

Assignees

• Airbus Operations Sas

Inventors

• Bernadet Philippe
• Aguera Damien
• Marin Yannick
• Peyraud Sylvain
• Le Caroline
• Lampure Yannick
• Bournazaud Stéphane

Classifications

• B25B27/062

  using screws · CPC title

• B64C1/18

  Floors · CPC title

• F16B5/025

  specially designed to compensate for misalignement or to eliminate unwanted play · CPC title

• B64F5/10 Primary

  Manufacturing or assembling aircraft, e.g. jigs therefor · CPC title

• F16B2/18 Primary

  using cams, levers, eccentrics, or toggles {(for connections of rods or tubes engaged telescopically F16B7/1418, F16B7/1427, F16B7/1454)} · CPC title