Floor attachment assembly and aircraft seat

Patent metadata

Field	Value
Publication number	US-10144516-B2
Application number	US-201415025499-A
Country	US
Kind code	B2
Filing date	Sep 26, 2014
Priority date	Sep 27, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

The invention relates to a floor attachment assembly for mechanically connecting two aircraft seats to a floor structure of an aircraft, which assembly comprises four attachment points. The floor attachment assembly can be attached to the floor structure by means of one attachment element in each case at the four attachment points. The floor attachment assembly comprises two adapter plates, the two adapter plates being interconnected by means of a connection element. The mechanical connection between at least one of the adapter plates and at least one of the attachment elements is movable along at least one axis. Furthermore, the invention relates to a corresponding aircraft seat.

First claim

The invention claimed is:

1. A floor attachment assembly for mechanically connecting two aircraft seats to a floor structure of an aircraft, comprising:
a first adapter plate;
a second adapter plate;
four attachment elements; and
a connection element,
wherein the floor attachment assembly is configured to attach to a floor structure of an aircraft having four attachment points, such that:
the first adapter plate and the second adapter plate are mechanically connected to floor structure of the aircraft, via each attachment element of the four attachment elements being mechanically connected to the first adapter plate or the second adapter plate, and being mechanically connected to a corresponding attachment point of the four attachment points;
the connection element mechanically interconnects the first adapter plate and the second adapter plate; and
at least one mechanical connection between a corresponding at least one attachment element of the four attachment elements and the corresponding the first adapter plate or the second adapter plate to which the at least one attachment element of the four attachment elements is mechanically connected to is:
(i) movable along a first axis;
(ii) rotatable along a first axis; or
(iii) movable along a first axis and rotatable along the first axis, and

wherein at least one mechanical connection of the first adapter plate or the second adapter plate to an attachment element of the four attachment element to which the first adapter plate or the second adapter plate is mechanically connected and/or the mechanical connection between the adapter first plate or the second adapter plate and the connection element has a deformation region that is provided to make movement possible in at least one direction by plastic deformation.

2. The floor attachment assembly according to claim 1 ,
wherein the four attachment elements are:
a first front attachment element;
a first rear attachment element;
a second front attachment element; and
a second rear attachment element;
wherein the first front attachment element mechanically connects to the first adapter plate and mechanically connects to a first front attachment point of the floor structure of the aircraft;
wherein the first rear attachment element mechanically connects to the first adapter plate and mechanically connects to a first rear attachment point of the floor structure of the aircraft;
wherein the second front attachment element mechanically connects to the second adapter plate and mechanically connects to a second front attachment point of the floor structure of the aircraft; and
wherein the second rear attachment element mechanically connects to the second adapter plate and mechanically connects to a second rear attachment point of the floor structure of the aircraft.

3. The floor attachment assembly according to claim 2 ,
wherein the interconnection of the first adapter plate and the second adapter plate via the connection element allows the first adapter plate and the second adapter plate to move by at least 10 mm relative to one another in a direction parallel with a transverse axis, and
wherein the transverse axis is perpendicular to the first axis.

4. The floor attachment assembly according to claim 3 ,
wherein the interconnection of the first adapter plate and the second adapter plate via the connection element is torque-free with respect to rotation about the transverse axis.

5. The floor attachment assembly according to claim 2 ,
wherein the movability between the at least one attachment element of the four attachment elements and the corresponding the first adapter plate or the second adapter plate to which the at least one attachment element of the four attachment elements is mechanically connected to is limited.

6. The floor attachment assembly according to claim 2 ,
wherein the first axis is a longitudinal axis,
wherein the first front attachment element and the first rear attachment element are arranged on the longitudinal axis,
wherein the second front attachment element and the second rear attachment element are arranged on a second axis,
wherein the second axis is parallel to the longitudinal axis, and
wherein:
(i) the first front attachment element and the second front attachment element are arranged on a transverse axis that is perpendicular to the longitudinal axis;
(ii) the first rear attachment element and the second rear attachment element are arranged on a transverse axis that is perpendicular to the longitudinal axis; or
(iii) the first front attachment element and the second front attachment element are arranged on a transverse axis that is perpendicular to the longitudinal axis, and the first rear attachment element and the second rear attachment element are arranged on a further transverse axis that is parallel to the transverse axis.

7. The floor attachment assembly according to claim 6 ,
wherein the first front attachment element is moveable is by at least 20 mm in both directions parallel with the longitudinal axis,
wherein the first front attachment element is moveable is by at least 3 mm in both directions parallel with the transverse axis,
wherein the first front attachment element is fixed with respect to both directions along an axis that is perpendicular to both the longitudinal axis and the transverse axis,
wherein the first rear attachment element is fixed in both directions parallel with the longitudinal axis,
wherein the first rear attachment element is fixed in both directions parallel with the transverse axis, and
wherein the first rear attachment element is fixed in both directions parallel with the axis that is perpendicular to both the longitudinal axis and the transverse axis.

8. The floor attachment assembly according to claim 2 ,
wherein the first front attachment element and the first rear attachment element are attached to a first seat rail,
wherein the second front attachment element and the second rear attachment element are attached to a second seat rail, and
wherein the floor attachment assembly is configured to be mounted such that:
(i) rotation of the first seat rail by at least 10° about a first point of rotation positioned within the first seat rail and within a 1 m radius of a geometric central point of the floor attachment assembly does not bring about irreversible deformation of the first adapter plate; and
(ii) rotation of the second seat rail by at least 10° about a second point of rotation positioned within the second seat rail and within a 1 m radius of the geometric central point of the floor attachment assembly does not bring about irreversible deformation of the second adapter plate.

9. The floor attachment assembly according to claim 2 ,
wherein at least one connection point for a corresponding at least one seat substructure is provided on at least one of the first adapter plate and the second adapter plate.

10. The floor attachment assembly according to claim 9 ,
wherein when a corresponding at least one seat substructure is connected to the corresponding at least one connection point, the at least one seat substructure can be moved in translation and/or in rotation in a floor plane on the floor attachment assembly.

11. The floor attachment assembly according to claim 9 ,
wherein at least one of the first adapter plate and the second adapter plate and the corresponding at least one seat substructure is a corresponding at least one integral component.

12. The floor attachment assembly according to claim 1 ,
wherein at least one mechanical connection of the first adapter plate or the second adapter plate to an attachment element of the four attachme

Assignees

• Lufthansa Technik Ag

Inventors

• Thomaschewski Oliver

Classifications

• B64D11/0696 Primary

  Means for fastening seats to floors, e.g. to floor rails · CPC title

• Y02T50/46

  Cross-Sectional Technologies · mapped topic

• Y02T50/40

  Weight reduction · CPC title