Abstract: The elastic immobilizing device allows a passenger on a seat, positioned behind the seat carrying the tray and the device according to the invention, to use the tray (3) in an easy and practical manner and to avoid accidental breakage of the strap (17) which holds the tray (3), if the strap (17) is pulled accidentally or excessively. The strap (4) holding the tray (3) comprises a part that has low resistance to stretching (17) along the entire length thereof and comprises, along at least a part of the length thereof, a part that is highly resistant to stretching (18), mounted in series or in parallel with the part that has low resistance to stretching (17), the part that is highly resistant to stretching (18) being able to come into action when the part that has low resistance to stretching (17) has been stretched. Application to the seats of aircraft.

Abstract: A device for locking a folding element in position for a vehicle seat including: a fixed element, designed to be fixed to the vehicle seat, a rotating element, designed to be fixed to the folding element, installed free to rotate relative to the fixed element about a rotation axis (X), the rotating element comprising at least a first locking structure, and a locking element, installed on the fixed element and that can be moved between a locking position in which it locks the rotating element in rotation relative to the fixed element by at least partial engagement of the locking element in the at least one first locking structure of the rotating element, and a release position in which it allows free rotation of the rotating element from the fixed element by release of the locking element in the at least one first locking structure of the rotating element.

Abstract: The elastic immobilizing device allows a passenger on a seat, positioned behind the seat carrying the tray and the device according to the invention, to use the tray (3) in an easy and practical manner and to avoid accidental breakage of the strap (17) which holds the tray (3), if the strap (17) is pulled accidentally or excessively. The strap (4) holding the tray (3) comprises a part that has low resistance to stretching (17) along the entire length thereof and comprises, along at least a part of the length thereof, a part that is highly resistant to stretching (18), mounted in series or in parallel with the part that has low resistance to stretching (17), the part that is highly resistant to stretching (18) being able to come into action when the part that has low resistance to stretching (17) has been stretched. Application to the seats of aircraft.

Abstract: A device for locking a folding element in position for a vehicle seat including: a fixed element, designed to be fixed to the vehicle seat, a rotating element, designed to be fixed to the folding element, installed free to rotate relative to the fixed element about a rotation axis (X), the rotating element comprising at least a first locking structure, and a locking element, installed on the fixed element and that can be moved between a locking position in which it locks the rotating element in rotation relative to the fixed element by at least partial engagement of the locking element in the at least one first locking structure of the rotating element, and a release position in which it allows free rotation of the rotating element from the fixed element by release of the locking element in the at least one first locking structure of the rotating element.

Abstract: A mask formed by printing a pattern onto backing, and having firstly uninterrupted resist portions (3) suitable for withstanding a jet of abrasive material and secondly openings serving to allow said abrasive material to pass through, is placed in front of the piece (8). At least facing the openings, a material (16) suitable for etching porcelain or earthenware is blasted onto the mask so as to obtain one or more sunken relief pits of desired shape and depth. The piece obtained by implementing this method has deep, mat, and clearly marked sunken relief.

Abstract: A foam padding having a foam pad and a sheet material cover, both being shaped such that the pad extends along the flat side of the central section of a wooden yoke and the cover holds it in place.