A seat component adjustment actuator (1) comprises a housing, an electric motor (5), and a gearing (10) coupled to the electric motor (5) and comprising at least three worm transmission stages (11-16). A first worm transmission stage (11, 12) comprises a first worm (11) and a first worm gear (12) engaged with the first worm (11). A third worm transmission stage (15, 16) comprises a third worm (15) and a third worm gear (16) engaged with the third worm (15). The first worm (11) is supported in the housing such that the first worm (11) is rotatable about an input rotation axis. The third worm gear (16) is supported in the housing such that the third worm gear (16) is rotatable about an output rotation axis which is transverse to the input rotation axis.

A seat component adjustment actuator (1) comprises a housing, an electric motor (5), and a gearing (10) coupled to the electric motor (5) and comprising at least three worm transmission stages (11-16). A first worm transmission stage (11, 12) comprises a first worm (11) and a first worm gear (12) engaged with the first worm (11). A third worm transmission stage (15, 16) comprises a third worm (15) and a third worm gear (16) engaged with the third worm (15). The first worm (11) is supported in the housing such that the first worm (11) is rotatable about an input rotation axis. The third worm gear (16) is supported in the housing such that the third worm gear (16) is rotatable about an output rotation axis which is transverse to the input rotation axis.

An adjustable headrest for motor vehicle seat. The headrest includes a support structure fixed to a backrest and a body having a front shell and a rear shell. The front shell has a front face intended for contact with the head of a user of the seat, the front face being movable relative to the support structure along a front-rear direction denoted X, over a total travel distance. The total travel distance is formed by a first travel portion provided by a mounting enabling translational movement of the body relative to the support structure while maintaining the position of the front shell relative to the rear shell substantially constant. The total travel distance is also formed by a second travel portion provided by a mounting enabling translational movement of the front shell alone relative to the rear shell.

An adjustable headrest for motor vehicle seat. The headrest includes a support structure fixed to a backrest and a body having a front shell and a rear shell. The front shell has a front face intended for contact with the head of a user of the seat, the front face being movable relative to the support structure along a front-rear direction denoted X, over a total travel distance. The total travel distance is formed by a first travel portion provided by a mounting enabling translational movement of the body relative to the support structure while maintaining the position of the front shell relative to the rear shell substantially constant. The total travel distance is also formed by a second travel portion provided by a mounting enabling translational movement of the front shell alone relative to the rear shell.

An occupant support includes a seat bottom and a seat back. The seat bottom is coupled to a floor of a vehicle. The seat back is coupled to the seat bottom to move relative to the seat bottom. The seat back includes a back rest and a headrest coupled to the backrest.

An occupant support includes a seat bottom and a seat back. The seat bottom is coupled to a floor of a vehicle. The seat back is coupled to the seat bottom to move relative to the seat bottom. The seat back includes a back rest and a headrest coupled to the backrest.

Components and systems of an aircraft seating assembly are disclosed. The aircraft seating assembly can include an adjustable headrest that allows the headrest to be translated and/or rotated relative to a seat, a storage sleeve, and/or a spreader. The aircraft seating assembly can include an energy absorption system. The energy absorption system can include bracket which can control pivoting of a seat back relative to the bracket when subject to forces exceeding a threshold force. The energy absorption system can include a movable wall coupled to the seat.

The technology can be embodied in a headrest that includes an enclosure that includes one or more acoustic transducers. The headrest includes a bar for mounting on a backrest of the seat, such that the mounted headrest is movable with respect to the backrest to different positions over an adjustable range. The bar includes one or more wires each of which is coupled to an electrical contact at one end, and an acoustic transducer at an opposite end, the one or more wires disposed within a hollow interior portion of the bar. The bar also includes an opening for permitting an electrical connection to be established between an electrical connector coupled to an external source, and the electrical contact coupled to the one or more wires. The connection is maintained over the adjustable range of the headrest by a mechanical bias on either the electrical connector or the electrical contact.

A vehicle seating assembly has a seat having a lower seat and a seatback extending upwardly from the lower seat. The lower seat comprises a cushion frame assembly connected to a vehicle floor and a cushion leg jounce bracket comprising a base and a paddle connected with the cushion frame assembly. The paddle extends upwardly and forwardly to form a vertical gap between a distal end of the paddle and a forward portion of the cushion frame assembly to provide independent and resilient support for an occupant's thighs. A cushion foam assembly is disposed above and is attached to the cushion frame, a forward portion of the cushion foam assembly being supported by the paddle of the cushion leg jounce bracket.

An adjustable head restraint assembly for a seat back of a seat that includes a head supporting structure, a head rest support, and at least two of a height adjustment mechanism, a side angle adjustment mechanism, and a tilt adjustment mechanism that are each electronically powered. The head supporting structure is configured to support an occupant's head. The head rest support supports the head supporting structure. The height adjustment mechanism is configured to change the height of the head supporting structure relative to the head rest support and the seat back. The side angle adjustment mechanism is configured to change the angle of side portions of the head supporting structure relative to a center portion of the head supporting structure. The tilt adjustment mechanism is configured to change a tilt angle of the head supporting structure relative to a tilt supporting structure and the seat back.