Patent ID: 8020808

Claim:
An aircraft subassembly, comprising: a banquette for a passenger, said banquette being dimensioned and configured to receive said passenger in a lying-down position on a horizontal top surface of said banquette, said banquette defining two longitudinal sides parallel to each other and two transverse sides parallel to each other, said longitudinal sides being longer than said transverse sides; a shelf mechanically coupled to said banquette, said shelf having, at least in an open position of said shelf, a tray surface oriented horizontally; means for moving the shelf with a translational movement along one of the two longitudinal sides of the banquette while said tray surface is oriented horizontally; a first locking/unlocking mechanism that is movable between an initial translational locked position, in which the translational movement of the shelf is prevented, and a second translational unlocked position, in which the translational movement is allowed; and at least one elastic device ensuring elastic return of the first locking/unlocking mechanism to the initial translational locked position in an absence of outside prompting on the first locking/unlocking mechanism.