Offset leg assembly for aircraft passenger seats

Patent metadata

Field	Value
Publication number	US-2024182172-A1
Application number	US-202218062177-A
Country	US
Kind code	A1
Filing date	Dec 6, 2022
Priority date	Dec 6, 2022
Publication date	Jun 6, 2024
Grant date	—

Abstract

An offset leg assembly for a passenger seat for a vehicle such as an aircraft is provided. The leg assembly can include a base leg portion having a lower end configured to operably couple to a seat track coupling assembly and an upper end opposite the lower end, and an upper leg portion coupled to a lateral side of the upper end of the base leg portion, the upper leg portion having an aperture configured to receive a base frame tube of the passenger seat. The upper leg portion can be positioned laterally offset from the seat track coupling assembly along the base frame such that the upper mounting location on the base frame tubes is not vertically aligned with the lower mounting location to the aircraft fuselage attachment points.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1 . A leg assembly for an aircraft passenger seat, the leg assembly comprising:
a base leg portion having a lower end configured to operably couple to a seat track coupling assembly and an upper end opposite the lower end; and an upper leg portion coupled to a lateral side of the upper end of the base leg portion, the upper leg portion having an aperture configured to receive a base frame tube of the passenger seat, wherein the upper leg portion is positioned laterally offset from the seat track coupling assembly along the base frame tube.

2 . The leg assembly of claim 1 , wherein the base leg portion is a forward base leg portion, the seat track coupling assembly is a forward seat track coupling assembly, the upper leg portion is a forward upper leg portion, the aperture is a forward aperture, and the base frame tube is a forward base frame tube, and wherein the leg assembly further comprises:
an aft base leg portion laterally aligned with and positioned apart from the forward base leg portion, the aft base leg portion having a lower end configured to operably couple to an aft seat track coupling assembly and an upper end opposite the lower end; and an aft upper leg portion coupled to a lateral side of the upper end of the aft base leg portion, the aft upper leg portion having an aft aperture configured to receive an aft base frame tube of the passenger seat, wherein the aft upper leg portion is positioned laterally offset from the aft seat track coupling assembly along the aft base frame tube.

3 . The leg assembly of claim 2 , wherein the forward upper leg portion is laterally offset along the forward base frame tube in the same direction as the lateral offset of the aft upper leg portion along the aft base frame tube.

4 . The leg assembly of claim 2 , wherein the lower end of the forward base leg portion is positioned forward of the upper end of the forward base leg portion, and wherein the lower end and the upper end of the aft base leg portion are vertically aligned.

5 . The leg assembly of claim 4 , wherein the forward base leg portion is non-linear.

6 . The leg assembly of claim 4 , wherein the aft base leg portion is linear.

7 . The leg assembly of claim 2 , wherein the upper end of the forward base leg portion includes a forward coupling pocket having an aperture configured to receive a fastener therethrough to operably couple the forward upper leg portion to the forward base leg portion, and wherein the upper end of the aft base leg portion includes an aft coupling pocket having an aperture configured to receive a fastener therethrough to operably couple the aft upper leg portion to the aft base leg portion.

8 . The leg assembly of claim 7 , further comprising:
a forward spacer configured to be received within the forward coupling pocket, the forward spacer extending from the forward coupling pocket to the forward upper leg portion; and an aft spacer configured to be received within the aft coupling pocket, the aft spacer extending from the aft coupling pocket to the aft upper leg portion.

9 . The leg assembly of claim 2 , further comprising a spreader operably coupling the lower end of the forward base leg portion and the lower end of the aft base leg portion.

10 . The leg assembly of claim 2 , wherein the aft base leg portion comprises an aperture configured to receive a luggage bar.

11 . A leg assembly for an aircraft passenger seat, the leg assembly comprising:
a forward leg assembly, comprising:
a forward base leg portion having a lower end configured to operably couple to a forward seat track coupling assembly; and
a forward upper leg portion coupled to a lateral side of an upper end of the forward base leg portion opposite the lower end, wherein the forward upper leg portion has a forward aperture configured to receive a forward base frame tube of the aircraft passenger seat; and
an aft leg assembly laterally aligned with and positioned apart from the forward leg assembly, the aft leg assembly comprising:
an aft base leg portion having a lower end configured to operably couple to an aft seat track coupling assembly; and
an aft upper leg portion coupled to a lateral side of an upper end of the aft base leg portion opposite the lower end, wherein the aft upper leg portion has an aft aperture configured to receive an aft base frame tube of the passenger seat,
wherein the forward and aft upper leg portions are respectively positioned laterally offset from the forward and aft seat track coupling assemblies along the forward and aft base frame tubes.

12 . The leg assembly of claim 11 , wherein the forward upper leg portion is laterally offset along the forward base frame tube in the same direction as the lateral offset of the aft upper leg portion along the aft base frame tube.

13 . The leg assembly of claim 11 , wherein the upper end of the forward base leg portion includes a forward coupling pocket having an aperture configured to receive a fastener therethrough to operably couple the forward upper leg portion to the forward base leg portion, and wherein the upper end of the aft base leg portion includes an aft coupling pocket having an aperture configured to receive a fastener therethrough to operably couple the aft upper leg portion to the aft base leg portion.

14 . The leg assembly of claim 13 , further comprising:
a forward spacer configured to be received within the forward coupling pocket, the forward spacer extending from the forward coupling pocket to the forward upper leg portion; and an aft spacer configured to be received within the aft coupling pocket, the aft spacer extending from the aft coupling pocket to the aft upper leg portion.

15 . The leg assembly of claim 11 , further comprising a spreader operably coupling the lower end of the forward base leg portion and the lower end of the aft base leg portion.

16 . A passenger seat, comprising:
a seat back; a seat base frame assembly operably coupled between a seat track of an aircraft fuselage and the seat back, the seat base frame assembly comprising:
a forward base frame tube;
an aft base frame tube spaced apart from the forward base frame tube;
a forward leg assembly including a forward base leg portion and a forward upper leg portion coupled to a lateral side of an upper end of the forward base leg portion, wherein the forward upper leg portion has a forward aperture for receiving the forward base frame tube; and
an aft leg assembly laterally aligned with and positioned apart from the forward leg assembly, the aft leg assembly including an aft base leg portion and an aft upper leg portion coupled to a lateral side of an upper end of the aft base leg portion, wherein the aft upper leg portion has an aft aperture for receiving the aft base frame tube,
wherein the forward and aft upper leg portions are positioned laterally offset from the seat track along the forward and aft base frame tubes.

17 . The passenger seat of claim 16 , further comprising:
a secondary forward leg operably coupled to the forward base frame tube at a position vertically aligned with the seat track and spaced laterally apart from the forward leg assembly; and a secondary aft leg operably coupled to the aft base frame tube at a position vertically aligned with the seat track and laterally aligned with the secondary forward leg.

18 . The passenger seat of claim 16 , further comprising a spreader operably coupled to the aft base frame

Assignees

• Safran Seats Usa Llc

Inventors

• Omoragbon Amen
• Madrid Nahum
• Mansouri Reza

Classifications

• B64D11/0646 Primary

  Seats characterised by special features of stationary arms, foot or head rests · CPC title

• B64D11/0648 Primary

  Lower frame constructions · CPC title

• B64D11/0696

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

• B64D11/06

  Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04) · CPC title

• B60N2/682

  Joining means · CPC title