Abstract: Described are passenger seats including a lower frame comprising a pair of supports, a seat pan adjustably coupled to the pair of supports via a coupling system, and a rear leg coupled to the lower frame, wherein the rear leg includes an extension component that is configured to adjust a height of the rear leg. The passenger seat may be adjusted into a bed position by compressing the rear leg, adjusting the seat pan into a forward position relative to the lower frame, and reclining the seat back until the seat back is substantially proximate the lower frame.

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.

Abstract: The invention relates to a device for mounting a seat on a mounting rail. This device comprises a base that comprises a band operable for linking to a seat, a groove that can receive the sliding nut guide rail, and a longitudinal blocking piston insertable in a suitable section of the mounting rail such that the piston is restrained longitudinally, a sliding nut comprising protrusions that form lateral lips, and a guide rail insertable into the groove of the base, said sliding nut being arranged so as to slide in relation to said base when said base is releasably secured to said mounting rail with the protrusions in the rail, between an installation position and a blocked position, and a control lever hinged to the base and to the sliding nut, so as to cause said lever to move in between an open position in which the sliding nut is in its installation position and a closed position in which the sliding nut is in its blocked position.

Abstract: The invention relates to a linking assembly between a mechanical system, such as an aircraft seat, and an adjustment actuator, comprising an input shaft connected to an output of the actuator and an output shaft connected to an input of the mechanical system, and engagement/disengagement members placed between the input shaft and the output shaft, the members being mobile between a locked position, wherein the input shaft and the output shaft cooperate in rotation, and an unlocked position, position-copying means being mounted solidly attached to the actuator, the copying means having an input shaft, a position-copying rod being fixed between the output shaft and the input shaft of the copying means.

Abstract: The invention relates to a device for mounting a seat on a mounting rail. This device comprises a base that comprises a band operable for linking to a seat, a groove that can receive the sliding nut guide rail, and a longitudinal blocking piston insertable in a suitable section of the mounting rail such that the piston is restrained longitudinally, a sliding nut comprising protrusions that form lateral lips, and a guide rail insertable into the groove of the base, said sliding nut being arranged so as to slide in relation to said base when said base is releasably secured to said mounting rail with the protrusions in the rail, between an installation position and a blocked position, and a control lever hinged to the base and to the sliding nut, so as to cause said lever to move in between an open position in which the sliding nut is in its installation position and a closed position in which the sliding nut is in its blocked position.

Abstract: A seat which can be converted into a couchette with a deformable armrest, comprising a squab structure (1) and a backrest structure (2) mounted so as to pivot with respect to the squab structure (1) between a raised position and an elongated position, and a deformable structure (3) comprising an upright (4) and a support member (5), the upright (4) being pivotally connected at one of its ends to the front part (1a) of the squab structure (1) and at its other end to the front part (5b) of the support member (5) so that the deformable structure (3) forms an armrest when the backrest structure (2) is in the raised position and so that the upright (4) and the support member (5) come into the line with each other at the level of the squab structure (1) and backrest structure (2) when the latter is in the elongated position.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats (1) which can be converted into beds and disposed in rows (2), comprising two lateral groups (3a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and two central groups (3b) each comprising two continuous rows. The central groups being up against one another laterally, and the central groups being separated from each of the lateral groups by a gangway. Each of the lateral and central groups comprising, between two consecutive groups in a first row, and a gap able to allow transverse passage (6) to a gangway (7) for the passengers in the second row when the corresponding seat in the first row is in the bed position.

Abstract: An arrangement of individual seats for passengers in an aircraft, comprising a plurality of seats which can be converted into beds and disposed in rows, and comprising two lateral groups (3a; 13a) of two contiguous rows, each group being disposed along a wall (4) of the aircraft fuselage, and at least one central group (3b; 13b) of two contiguous rows, the said central group being separated from each of the lateral groups by a gangway. Each lateral group comprising, between two consecutive groups in a first row, and a pitch (P1) able to allow transverse passage for the passengers in the other row. The at least one central group comprising, between two adjacent seats in the same row, and a pitch (P2) less than the pitch provided in the lateral groups.

Abstract: A seat (1) for a vehicle such as an aircraft, comprises a back rest structure (3) and a squab structure (2) mounted so as to pivot with respect to the back rest structure (3), a structure (5) supporting the squab structure (2) and the back rest structure (3), the back rest structure (3) being connected to the support structure (5) by a pivot connection (10), and a leg rest (4) connected by a pivot connection (6) to the front end of the squab structure (2), characterised in that it comprises mechanical synchronisation mechanism (15) able to synchronise the movements of the back rest structure (3) and of the leg rest (4).

Abstract: The invention relates to a seat for a transport vehicle or craft, in particular an aircraft, the seat including a support structure (1) and at least one armrest (2) comprising a rest element (4) mounted on one end of a strut whose other end is hinged to the support structure about a first transverse axis (7) to tilt between an in-use position in which the rest element is substantially horizontal and a forwardly-tilted retracted position in which the rest element is substantially vertical and in front of the seat. Said strut is L-shaped with a first arm (5) hinged at its free end about said first axis and extending substantially rearwards from said first axis when said strut is in its in-use position, and a second arm (6) extending substantially upwards when the strut is in its in-use position, and said rest element is hinged to the free end of said second arm of the strut about a second transverse axis (9).

Abstract: A seat (1), notably for an aircraft, comprising a squab (2), a backrest (3), and a legrest (4) fixed in an articulated fashion to the structure of the seat so as to be able to adjust its inclination between a substantially vertical position (B) and a position (A) situated substantially in line with the squab, this legrest (4) carrying a footrest (5) able to move between a retracted position and an extension position situated in line with the legrest. The seat (1) comprises control means (6) consisting of an electronic circuit (7) for making the legrest (4) pivot between the two positions defined above and simultaneously controlling the mergence or progressive retraction of the footrest according to predetermined kinematics. The said electronic circuit (7) also cooperates with means (11) able to be actuated by the user in order to adjust the position of the legrest.

Abstract: A seat (1) for a vehicle such as an aircraft, comprising a back rest structure (3) and a squab structure (2) mounted so as to pivot with respect to the back rest structure (3), a structure (5) supporting the squab structure (2) and the back rest structure (3), the back rest structure (3) being connected to the support structure (5) by a pivot connection (10), and a leg rest (4) connected by a pivot connection (6) to the front end of the squab structure (2), characterised in that it comprises mechanical synchronisation means (15) able to synchronise the movements of the back rest structure (3) and of the leg rest (4), the said mechanical synchronisation means (15) being connected:

Abstract: The seat comprises means for controlling movement of the seating plate (7) between a first extreme position (A) adapted to for small passengers, a second extreme position (B) adapted to tall passengers so that in all the positions, the distance d1, d2, d3 between the seatback (6) and the front edge (7a) of the seating plate (7) corresponds to the distance between the base of the back and the hollow portion of the knee of the passengers, and simultaneously the distance (a1, a2, a3) between the front edge (7a) of the seat plate and the floor (5) corresponds to the distance between the hollow portion of the knee and the sole of the foot of the passengers

Abstract: The present device is directed to a leg rest for a seat, such as an aircraft seat, and includes a body having a generally flat support surface, a pivoting mechanism for mounting the body so as to pivot about a front edge of the seat squab so that the surface of the seat squab and the support surface of the body form a dihedron with variable angles. The leg rest further includes an extension mechanism that moves from a retracted position to various unfolded positions in order to adjustably extend the body of the leg rest on its side opposite to the pivoting mechanism, a roller shutter and a guidance mechanism for deploying the roller shutter when the extension mechanism is unfolded so that the roller shutter comes in line with the support surface of the body of the leg rest.

Abstract: A device for a seat, in particular an aircraft seat, the seat having a back that pivots between an upright sitting position and a folded-down sleeping position, the device serving to cause the seat proper of the seat to take up an appropriate position that matches that of the back. The device includes two support-and-drive assemblies designed to be disposed laterally on either side of the seat, each assembly having first and second hinged and deformable mechanical linkages designed to be associated mechanically firstly with the back to pivot relative thereto, and secondly with the seat proper in portions thereof that are respectively proximal and distal relative to the back.

Abstract: A section member specifically designed for rigidly assembling together structural elements of a seat, and more particularly an aircraft seat, by axial sliding and by mechanical clamping, the section member presenting in right cross-section a shape that is generally H-shaped with a single central web, or a shape that is hollow, being rectangular or pseudo-rectangular and having two generally analogous webs that are spaced apart from each other, and also having two respective pairs of flanges that are generally analogous to one another and that are spaced apart from one another, in opposing pairs on either side of the web, or a pair of flanges that are generally analogous to each other and spaced apart from each other, joining together the sides of the two webs, with the flanges having towards their free edges, respective projections extending at least towards the transverse midplane of the webs and serving to participate in guiding the axial sliding and the locking of the structural element.

Abstract: A leg for the leg assembly of an aircraft seat presents over at least a portion of its length, at least one segment whose cross-section has at least a portion that is generally U-shaped defined by a web extending in a transverse direction and two flanges extending in a longitudinal direction, the opening of the U-shape facing in a longitudinal direction, said segment serving to contribute to absorbing energy.

Abstract: An energy-absorbing bolt specially designed for an aircraft seat.