Seat provided with a system for locking the tray table in the event of an impact

Patent metadata

Field	Value
Publication number	US-11091071-B2
Application number	US-201816610073-A
Country	US
Kind code	B2
Filing date	Apr 27, 2018
Priority date	May 3, 2017
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

The invention relates mainly to a seat comprising a backrest carrying on a rear face side a tray table that can be moved between a deployed position and a stowed position,
said tray table comprising a latch that can be moved between an unlocked position and a locked position,

characterized in that said tray table further comprises a locking system configured to hold the tray table in a stowed position following the deformation of said seat during an impact.

First claim

The invention claimed is:

1. A seat comprising a backrest carrying on a rear face side a tray table that can be moved between a deployed position and a stowed position,
said tray table comprising a latch that can be moved between an unlocked position and a locked position,
characterized in that said tray table further comprises a locking system configured to hold the tray table in a stowed position following deformation of said seat during an impact,
characterized in that the locking system comprises at least one locking element connected to the latch via a motion transmission device,
characterized in that when the latch is in the locked position, an opening in the locking element is located opposite a fixed hook integral with a seat structure while also being at a distance from this hook, such that in the event of the deformation of the seat, said hook penetrates into the opening of the locking element to hold the tray table in a stowed position.

2. The seat according to claim 1 , characterized in that the motion transmission device comprises a rocker connected both to the latch and to the locking element by a pivot linkage.

3. The seat according to claim 2 , characterized in that the rocker is connected to the latch by an arm.

4. The seat according to claim 3 , characterized in that the arm has an end rotationally integral with an axis of the latch and an end rotatably mounted relative to the rocker.

5. The seat according to claim 1 , characterized in that the seat further comprises two lateral locking elements located on either side of the latch.

6. The seat according to claim 1 , characterized in that the locking system is integrated into a cassette.

7. The seat according to claim 6 , characterized in that the cassette is located in the tray table by being housed in the thickness of the tray table.

8. The seat according to claim 6 , characterized in that the locking element is rotatably mounted relative to the cassette by a pivot linkage.

Assignees

• Safran Seats

Inventors

• Marais Jean-Charles
• Debaugnies Alexandre
• Ciguret David
• Rajhi Mourad

Classifications

• B64D25/04

  Seat modifications · CPC title

• B60N2/43 Primary

  Safety locks (for back-rests B60N2/433) · CPC title

• B64D11/00152

  Seat back fixtures for removable monitors, e.g. tablet computers · CPC title

• B64D11/0638 Primary

  with foldable tables, trays or cup holders · CPC title

• B60N2/4221

  due to impact coming from the front · CPC title