Passenger seat leg energy absorber

Patent metadata

Field	Value
Publication number	US-12370930-B2
Application number	US-202118274860-A
Country	US
Kind code	B2
Filing date	Feb 10, 2021
Priority date	Feb 10, 2021
Publication date	Jul 29, 2025
Grant date	Jul 29, 2025

Abstract

A passenger seat assembly includes a leg, a crushable insert, and a connector assembly. The leg includes an end and a slot extending through the leg proximate to the end, and the slot has a first slot end a second slot end. The crushable insert is retained within the slot, and the connector assembly may connect the leg with a track fitting assembly. The connector assembly includes at least one connector that is at least partially positioned within the slot between the second slot end and the crushable insert such that the connector deforms the crushable insert during a dynamic event.

First claim

That which is claimed is:

1. A passenger seat assembly comprising:
a leg comprising a seat leg end and a slot extending through the leg from a first side of the leg to a second side of the leg and proximate to the seat leg end, the slot defining openings in the first side and the second side of the leg, wherein the slot is elongated in a direction extending away from the seat leg end and comprises a first slot end proximate to the seat leg end and a second slot end opposite from the first slot end such that the first slot end is between the second slot end and the seat leg end, and wherein the leg further comprises an aperture in the seat leg end providing access to the slot;
a crushable insert retained within the slot, wherein the crushable insert is insertable into the slot via the aperture; and
a connector assembly configured to connect the leg with a track fitting assembly, wherein the connector assembly comprises a connector and a support, wherein the connector extends at least partially through the slot between the second slot end and the crushable insert and from the first side of the leg to the second side of the leg, wherein the connector is configured to deform the crushable insert during a dynamic event, wherein the support at least partially covers the slot and extends towards the track fitting assembly.

2. The passenger seat assembly of claim 1 , wherein the connector of the connector assembly is a first connector, and wherein the connector assembly further comprises a second connector, wherein the support connects the first connector with the second connector, and wherein the second connector is configured to connect the leg with the track fitting assembly.

3. The passenger seat assembly of claim 1 , further comprising the track fitting assembly.

4. The passenger seat assembly of claim 1 , wherein the connector is configured to move within the slot during the dynamic event.

5. The passenger seat assembly of claim 1 , further comprising a retaining bracket coupled to the seat leg end and covering aperture, wherein the retaining bracket is configured to retain the crushable insert within the slot.

6. A passenger seat assembly comprising:
a leg comprising a seat leg end and a slot extending through the leg from a first side of the leg to a second side of the leg, wherein the leg further comprises an aperture in the seat leg end providing access to the slot, and wherein a crushable insert is insertable into the slot via the aperture; and
a connector assembly comprising:
a first connector;
a second connector; and
a support connecting the first connector and the second connector and at least partially covering the slot,
wherein the first connector is at least partially retained within the slot and extends from the first side to the second side of the leg,
wherein the first connector is movable within the slot during a dynamic event, and
wherein the second connector is configured to connect the seat leg end with a track fitting assembly.

7. The passenger seat assembly of claim 6 , further comprising a crushable insert retained within the slot, wherein the first connector is between a first slot end of the slot and the crushable insert, and wherein the first connector is configured to deform the crushable insert during the dynamic event.

8. The passenger seat assembly of claim 6 , further comprising a retaining bracket coupled to the seat leg end and covering aperture and the crushable insert, wherein the retaining bracket is configured to retain the crushable insert within the slot.

9. The passenger seat assembly of claim 6 , further comprising the track fitting assembly.

10. The passenger seat assembly of claim 6 , wherein the slot comprises a retaining groove within the slot and extending along a length of the slot, and wherein a width of the slot is less than a width of the retaining groove.

11. A passenger seat assembly comprising:
a leg comprising a seat leg end and a slot extending through the leg proximate to the seat leg end, wherein the slot is elongated in a direction extending away from the seat leg end and comprises a retaining groove extending along a length of the slot, wherein the leg further comprises an aperture in the seat leg end providing access to the slot;
a crushable insert retained within the slot and within the retaining groove, wherein the crushable insert is insertable into the slot via the aperture; and
a connector assembly configured to connect the leg with a track fitting assembly, wherein the connector assembly comprises a connector extending at least partially through the slot, wherein the connector is configured to deform the crushable insert during a dynamic event.

12. The passenger seat assembly of claim 11 , wherein the slot comprises a first slot end proximate to the seat leg end and a second slot end opposite from the first slot end such that the first slot end is between the second slot end and the seat leg end, and wherein the connector extends through the slot between the crushable insert and the second slot end.

13. The passenger seat assembly of claim 11 , wherein a width of the slot is less than a width of the retaining groove.

14. The passenger seat assembly of claim 11 , wherein the connector of the connector assembly is a first connector, and wherein the connector assembly further comprises a second connector and a support, wherein the support connects the first connector with the second connector, and wherein the second connector is configured to connect the leg with the track fitting assembly.

15. The passenger seat assembly of claim 11 , further comprising the track fitting assembly.

Assignees

• Safran Seats Usa Llc

Inventors

• Newbold Tyler

Classifications

• B60N2/68

  Seat frames · CPC title

• B64D25/04

  Seat modifications · CPC title

• B60N2/42709 Primary

  involving residual deformation or fracture of the structure · 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

• B64D11/0696

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