A monopost for a free-standing seat of a vehicle comprises: an inner subassembly of first clamshell components attached to each other; an outer subassembly of second clamshell components attached to each other around the inner subassembly, the outer subassembly forming a wing portion at one end; and a wing clamshell attached to the first clamshell components and to the wing portion.

Disclosed is one example of an easy chair capable of inhibiting links from being deformed and damaged when a large load acts on a cushion frame. A posture-changing mechanism of the easy chair includes a first link, a second link, and a male threaded rod, and these form a truss structure. Thus, in principle, no large bending moment is generated in the first link, the second link, and the male threaded rod. This posture-changing mechanism makes it possible to inhibit the first link, the second link, and the male threaded rod from being deformed and damaged by a bending moment when a large load acts on the cushion frame.

A monopost for a free-standing seat of a vehicle comprises: an inner subassembly of first clamshell components attached to each other; an outer subassembly of second clamshell components attached to each other around the inner subassembly, the outer subassembly forming a wing portion at one end; and a wing clamshell attached to the first clamshell components and to the wing portion.

A freestanding vehicle seat assembly includes: a seat having a seat portion connected to a back portion; a monopost attached at a bottom of the seat portion such that the seat rests only on the monopost; and a track assembly attached at a bottom of the monopost, the track assembly configured for providing fore and aft movement of the freestanding vehicle seat assembly. The freestanding vehicle seat assembly can have a pitch mechanism on the monopost configured for pitching at least part of the seat forward and rearward.

An adjustment unit for a vehicle seat is disclosed. Said adjustment unit comprises an inclination adjustment mechanism for the backrest of the vehicle seat. The inclination adjustment mechanism comprises a first rocker which is mounted in such a way as to be rotatable about a transverse direction extending perpendicular to a direction of travel of the vehicle.

A cushion tipping module is configured to be assembled between a seat cushion and a track assembly of a vehicle seat assembly. The cushion tipping module is configured to tip the seat cushion between an upright seating position and a rearward inclined position. The cushion tipping module includes opposing lift links fixedly coupled to distal ends of a transverse tube and configured to be operatively coupled to the seal cushion, an attachment link fixedly coupled to the transverse tube and pivotably coupled to a threaded nut, an electric motor operatively coupled to a lead screw meshingly engaged with the threaded nut, and motor mounting bracket configured to be assembled with the track assembly.

A lifting mechanism for a seat, a seat, and a vehicle. The lifting mechanism for the seat includes a fixing frame, a seat frame including a front end rotatably connected to the fixing frame; and a drive assembly installed to the fixing frame and configured to drive the seat frame to rotate around the front end.

A vehicle seat includes: a structure mounted on the vehicle, a squab inclinable by an inclination 4, a backrest linked to the squab by a pivot link about a first axis, inclinable by a backrest inclination 5, a front connecting rod linked to the structure by a pivot link and linked to a front part of the squab by a pivot link, a rear connecting rod linked to the structure by a pivot link and linked to either the backrest or the squab by a pivot link of a second axle, and a first linear actuator linked to the backrest by a pivot link along a third axis distinct from the first axis and linked to the squab by a pivot link, where actuation of the first linear actuator providing simultaneous adjustment of squab inclination 4 and backrest inclination 5.

An apparatus for moving a seat rail for a vehicle includes a casing, a lead nut mounted in the casing and screw-coupled to a lead screw configured to penetrate the casing, a worm wheel having first engagement portions provided on one surface of the worm wheel, and a clutch drum configured such that second engagement portions configured to engage with the first engagement portions are provided on one surface of the clutch drum, and keys provided on an inner-diameter portion of the clutch drum are inserted into key grooves provided in the outer-diameter portion of the lead nut.

A seat adjustment device may have a first lead screw, a second lead screw, and a connector. A first portion of the connector may comprise threads that may be adapted to receive threads from the first lead screw. A second portion of the connector may comprise threads that are adapted to receive threads from the second lead screw.