# US 8,770,518 B2 · Connection of a fuselage to an aircraft wing

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- Number: US 8,770,518 B2
- Document ID: US8770518B2
- Status: Granted
- Kind: B2
- Application number: 13/428,291
- Filed: 2012-03-23
- Published: 2012-11-15
- Granted: 2014-07-08
- Earliest claimed: 2011-03-25
- Assignees: Airbus Operations GmbH
- Applicants: Dominique Guittard; Olivier Eve; Frédéric Fort; Jérôme Colmagro; François Loyant
- Inventors: Dominique Guittard; Olivier Eve; Frédéric Fort; Jérôme Colmagro; François Loyant
- Web page: https://patentgrep.com/patent/US8770518B2

## CPC

- B64C 1/26: Attaching the wing or tail units or stabilising surfaces
- B64U 30/12: Variable or detachable wings, e.g. wings with adjustable sweep
- B64C 2001/0072: {from composite materials}
- Y02T 50/40: Weight reduction
- B64C: AEROPLANES; HELICOPTERS
- B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A wing box rib, joining an aircraft wing to the wing box and to the rest of the structure, extends advantageously over an adjacent part of the fuselage, having in particular an upper line situated above a junction line of the wing upper surface panel. The connection is simplified, as is the structure of the aircraft and its manufacture, a lightening is possible, and the transmission of stresses takes place in a more favorable manner.

## Claims

### Claim 1

A connection of a fuselage to an aircraft wing, the wing comprising a rib extending the fuselage and a wing upper surface panel joined to the rib,
wherein the rib extends above the wing upper surface panel and is joined to the fuselage at an upper line higher than a junction line from the wing upper surface panel to the rib,
wherein the upper line is horizontal, and
wherein the upper line belongs to a junction line of two horizontal strips of panels of the fuselage.

### Claim 2 (depends on 1)

The connection of a fuselage to an aircraft wing according to claim 1, wherein the upper line extends to a neutral bending line of the aircraft in a vertical plane.

### Claim 3

An aircraft, comprising:
a fuselage;
a wing; and
a connection of the fuselage to the wing, said wing comprising a rib extending the fuselage and a wing upper surface panel joined to the rib,
wherein the rib extends above the wing upper surface panel and is joined to the fuselage at an upper line higher than a junction line from the wing upper surface panel to the rib,
wherein the upper line is horizontal, and
wherein the upper line belongs to a junction line of two horizontal strips of panels of the fuselage.

### Claim 4 (depends on 3)

The aircraft according to claim 3, wherein the fuselage is made of composite material.