SEAT TABLE HAVING A CONTROLLED, OPTIMISED PATH AND IT'S ASSOCIATED SEAT

• US 20130093221A1
• Filed: 05/12/2011
• Published: 04/18/2013
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: Safran Seats Co.
• Original Assignee: Zodiac Seats France (Safran SA)
• Inventors: Ligonniere, Laurent, Erhmann, Charles
• Granted Patent: US 9,114,879 B2
• Time in Patent Office: Days
• US Class Current: 297/173
• CPC Class Codes: B64D 11/06 Arrangements of seats, or adaptations or details specially adapted for aircraft seats crew seat constructions for emergency purposes B64D25/04
• CPC Class Codes: B64D 11/0604 including a bed, e.g. cocoon type passenger seat modules
• CPC Class Codes: B64D 11/0638 with foldable tables, trays or cup holders

Abstract

The invention essentially relates to an aeroplane seat base (110) characterised in that said base comprises: a plate (1) suitable for moving along a horizontal path between an extended position and a stored position, a supporting arm (4) of variable length having a first end (4.1) connected to the seat (8) by means of a first hinged joint having a vertical pin and a second end (4.2) connected to the plate (1) by means of a second hinged joint having a vertical pin, and a guide device (121) controlling the path of the plate (1) following a unique path.

Claims

1. A seat table of seat characterised in that it comprises:

a tray capable of moving along a horizontal path between an extended position, wherein most of the tray is positioned external to a seat and a stored position, wherein most of the tray is positioned internal to the seat,

a supporting arm of variable length having a first end connected to the seat by means of a first hinged joint having a vertical axe and a second end connected to the tray by means of a second hinged joint having a vertical axe, and

a guide device controlling the path of the tray following a unique path when moving between the extended position and the stored position and vice-versa.

2. A table according to claim 1, characterised in that the supporting arm comprises two elements each formed by two rods connected to each other at one of their ends by a hinged joint having a vertical axe, these two elements being connected to each other at their ends by means of hinged joints having a vertical axe, two hinged joints of the arm being merged with the hinged joints between the ends of the arm and the seat and tray respectively.

3. A table according to claim 2, characterised in that the guide device comprises two rollers attached to the tray and two concentric rails connected to the seat.

4. A table according to claim 2, characterised in that the arm is equipped with two return springs, the purpose of which is to help move the tray.

5. A table according to claim 1, characterised in that the supporting arm comprises:

a first part connected in rotation to a plate belonging to the seat by means of the first hinged joint, this first part comprising at least one longitudinal bar, and

a second part connected in rotation to the tray by means of the second hinged joint, this second part being equipped with an opening designed to receive the bars in such a way that the second part can move in translation along the bar.

6. A table according to claim 5, characterised in that the guide device comprises:

a joint part having a first end connected to the plate by means of a first hinged joint having a vertical axe, this end being capable of moving along a groove made within the plate and a second end connected to the tray by means of a second hinged joint having a vertical axe, and

at least one roller attached to the tray and one rail connected to the seat.

7. A table according to claim 6, characterised in that the connecting part also comprises a retaining device to prevent the tray from pivoting along a vertical plane.

8. A table according to claim 7, characterised in that the retaining device comprises at least one retaining peg having a collar extending along the plane of the tray, this retaining peg resting against an edge of a groove in the shape of a semi-circle made in the tray.

9. A table according to claim 1, characterised in that the tray is hollow and that the arm is housed within the hollow of the tray.

10. A table according to claim 1, characterised in that it also comprises a locking device blocking any movement of the supporting arm in relation to the tray when the tray is in its stored position.

11. An aircraft seat characterised in that it comprises a seat base according to one of claim 1.