Abstract: Described are adjustable seats including an upper frame with a pair of support arms, a lower frame with a pair of support legs, and a coupling system with an upper rod and a lower rod. As examples, the upper rod and the lower rod are pivotally coupled to each of the pair of support arms and the pair of support legs. A linear actuator is coupled to the upper frame, and a track is coupled to the lower frame, wherein the linear actuator is configured to travel along the track. The linear actuator may comprise a first end and a second end, wherein the first end is coupled to a coupling location on the lower frame and the second end is coupled to a coupling location on the coupling system.

Abstract: Multiple features of seating assemblies are detailed. Innovations in or to tray tables, luggage bars, arm rests, seat backs, and seat frames are included, with features being incorporated into seating assemblies either separately or in any combination. The assemblies are configured principally for passenger aircraft but may be used elsewhere as appropriate or desired.

Abstract: The invention relates to a shock absorption device making it possible to tilt the back of a seat frontward in case of a shock greater than a predetermined value, the device including a plate and an absorbing shaft, the plate including a brake cavity and a hole through which the absorbing shaft passes, the hole and the brake cavity being separated by a bridge, and the dimensions of the bridge being such as to break when the stress exerted on the back is greater than a predetermined value. The invention also relates to a seat for a passenger vehicle and, more particularly, an aircraft, the pivotal rotation of which is provided with such a device.

Abstract: The invention relates to a shock absorption device making it possible to tilt the back of a seat frontward in case of a shock greater than a predetermined value, the device including a plate and an absorbing shaft, the plate including a brake cavity and a hole through which the absorbing shaft passes, the hole and the brake cavity being separated by a bridge, and the dimensions of the bridge being such as to break when the stress exerted on the back is greater than a predetermined value. The invention also relates to a seat for a passenger vehicle and, more particularly, an aircraft, the pivotal rotation of which is provided with such a device.

Abstract: In herringbone seats of the prior art, armrests on the closed angle side form an obstacle for the passengers in the seat in case of a shock, since the latter are generally projected along the axis of the vehicle and thus towards the armrest thus creating a high risk of injury for the passenger in case of a shock. The present invention provides a secure herringbone arrangement for the armrest of a seat i.e. making it possible to reduce the risk of injuries caused by the armrest, in case of a shock. Therefore, the present invention provides to leave a space between the seating part structure and the armrest to enable the passenger on the seat to be projected along the axis of the airplane in case of a shock without hitting the armrest. More precisely, the aim of the invention is a herringbone arrangement for the armrest of a seat wherein the armrest is angularly shifted with respect to the seat, so as to form a free space (33) between the seat and the armrest.