Two-piece machine leg assembly for passenger seats

Patent metadata

Field	Value
Publication number	US-2023278710-A1
Application number	US-202217686610-A
Country	US
Kind code	A1
Filing date	Mar 4, 2022
Priority date	Mar 4, 2022
Publication date	Sep 7, 2023
Grant date	—

Abstract

A leg assembly for a passenger seat for a vehicle such as an aircraft includes a forward leg and an aft leg. The forward leg includes a top end and a bottom end opposite the top end, and the top end of the forward leg includes a forward aperture for receiving a first base frame tube of the passenger seat. The aft leg includes a top end, a bottom end, a forward side, and an aft side, and the top end of the aft leg includes an aft aperture for receiving a second base frame tube of the passenger seat. The forward side at the aft aperture of the aft leg may be a forward-most portion of the aft leg, and the aft leg is indirectly connected to the forward leg.

First claim

1 . A leg assembly for a passenger seat, the leg assembly comprising:
a forward leg comprising a top end and a bottom end opposite the top end, wherein the top end comprises a forward aperture with a closed perimeter, the forward aperture adapted to receive a first base frame tube of the passenger seat; and an aft leg comprising a top end, a bottom end, a forward side, and an aft side, wherein the top end comprises an aft aperture with a closed perimeter, the aft aperture adapted to receive a second base frame tube of the passenger seat, wherein, in a non-loaded configuration of the leg assembly, the forward side at the aft aperture of the aft leg is a forward-most portion of the aft leg, and wherein the aft leg is indirectly connected to the forward leg.

2 . The leg assembly of claim 1 , wherein a distance between the forward side and the aft side at the aft aperture is a maximum thickness of the aft leg.

3 . The leg assembly of claim 1 , wherein the bottom end of the aft leg is offset in an aft direction relative to the top end of the aft leg.

4 . The leg assembly of claim 3 , wherein the aft side of the aft leg is linear between the top end and the bottom end.

5 . The leg assembly of claim 3 , wherein the aft side of the aft leg comprises a non-linear curvature between the top end and the bottom end.

6 . The leg assembly of claim 1 , wherein the forward leg further comprises a forward side and an aft side, wherein a distance between the forward side and the aft side at the forward aperture of the forward leg is a maximum thickness of the forward leg.

7 . The leg assembly of claim 1 , wherein the forward leg and the aft leg each comprise an aluminum alloy.

8 . The leg assembly of claim 1 , wherein the aft side of the aft leg comprises a non-linear curvature between the top end and the bottom end.

9 . The leg assembly of claim 1 , wherein the bottom end of the forward leg is vertically aligned with the top end of the forward leg.

10 . (canceled)

11 . The leg assembly of claim 1 , wherein a transverse dimension of the forward aperture is the same as a transverse dimension of the aft aperture.

12 . The leg assembly of claim 1 , wherein the forward leg comprises a non-uniform thickness between the top end and the bottom end.

13 . The leg assembly of claim 1 , wherein the aft leg comprises a non-uniform thickness between the aft aperture and the bottom end.

14 . A passenger seat comprising the leg assembly of claim 1 .

15 . The passenger seat of claim 14 , further comprising the first base frame tube, the second base frame tube, and a spreader coupled to the first based frame tube and the second base frame tube.

16 . A passenger seat comprising:
a forward base frame tube; an aft base frame tube; a spreader connecting the forward base frame tube with the aft base frame tube; and a leg assembly comprising:
a forward leg comprising a top end and a bottom end opposite the top end, wherein the top end comprises a forward aperture for receiving the forward base frame tube of the passenger seat, the forward leg connected to the forward base frame tube at a location other than a location where the spreader is connected to the forward base frame tube; and
an aft leg comprising a top end, a bottom end, a forward side, and an aft side, wherein the top end comprises an aft aperture for receiving the aft base frame tube of the passenger seat, wherein a distance between the forward side and the aft side at the aft aperture is a maximum thickness of the aft leg, and wherein the aft leg is detached from the forward leg and connected to the aft base frame tube at a location other than a location where the spreader is connected to the aft base frame tube.

17 . The leg assembly of claim 16 , wherein the bottom end of the aft leg is offset in an aft direction relative to the top end of the aft leg.

18 . The leg assembly of claim 17 , wherein the aft side of the aft leg is linear between the top end and the bottom end, or wherein the aft side of the aft leg comprises a non-linear curvature between the top end and the bottom end.

19 . A passenger seat comprising:
a forward base frame tube; an aft base frame tube; a spreader connecting the forward base frame tube with the aft base frame tube; and a leg assembly for a passenger seat, the leg assembly comprising:
a forward leg comprising a top end and a bottom end opposite the top end, wherein the top end comprises a forward aperture adapted to receive the forward base frame tube of the passenger seat, the forward leg connected to the forward base frame tube at a location other than a location where the spreader is connected to the forward base frame tube; and
an aft leg comprising a top end, a bottom end, a forward side, and an aft side, wherein the top end comprises an aft aperture adapted to receive the aft base frame tube of the passenger seat, wherein a distance between the forward side and the aft side at the aft aperture is a maximum thickness of the aft leg, and wherein the forward side at the aft aperture of the aft leg is a forward-most portion of the aft leg, wherein the aft leg is disconnected from the forward leg and connected to the aft base frame tube at a location other than a location where the spreader is connected to the aft base frame tube.

20 . (canceled)

Assignees

• Safran Seats Usa Llc

Inventors

• Ramarathnam Gokul

Classifications

• B64D11/0648 Primary

  Lower frame constructions · CPC title

• B64D11/0649

  Seats characterised by special features for reducing weight · CPC title

• B64D11/0696 Primary

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

• B60N2/015

  Attaching seats directly to vehicle chassis · CPC title

• B60N2/242

  Bus seats · CPC title