The embodiments described and claimed herein are improved vehicle access systems. In particular, one embodiment includes three compact, motorized mechanisms for pivoting a passenger seat toward a door opening, extending the passenger seat outside the door opening, lowering the passenger seat, and tilting the passenger seat to help the passenger stand. The first mechanism concurrently pivots the passenger seat and moves it sideways during the pivoting operation so that it is aligned with the door opening. The second mechanism extends the passenger seat outside the door opening. The third mechanism lowers the seat.

A device for unlocking a seat for a vehicle includes a base frame mounted on a movable rail of a seat rail, a seat frame mounted on the base frame to be able to tilt, a lock pin fixed to a side of the seat frame, a support bracket mounted on a floor panel, and a lock plate rotatably mounted on a side of the base frame, and configured to be locked to the lock pin when coming in contact with the support bracket and to be unlocked from the lock pin when coming apart from the support bracket, whereby it is possible to automatically unlock a seat when it is required to tilt the seat through a walk-in mechanism to secure a passage for a passenger to get in/out of a vehicle.

A sliding device for a vehicle seat is provided. The sliding device includes a pair of parallel slideways, each of which comprises a lower rail, an upper rail slidably mounted to the lower rail and a latch for allowing/preventing a movement of the upper rail relative to the lower rail. A releasing member is provided for driving the latches to a position in which the upper rails are free to move relative to the lower rails. Each latch has a rear portion which is bent into a “U”-like shape and comprises a lower leg carrying latching elements configured to cooperate with corresponding latching elements provided in the lower rail and an upper leg configured to engage the releasing member. The design of the latches improves the reliability of the sliding device.

A sliding device for a vehicle seat is provided with a locking arrangement including a pair of locking assemblies, one for each track of the sliding device. Each track has an upper rail and a lower rail, and each of the locking assemblies includes a plurality of locking pins for locking one of the upper rails to a respective one of the lower rails. The locking arrangement further includes a releasing assembly for driving the locking pins of the locking assemblies to an unlocking configuration. The releasing assembly comprises a releasing member and a pair of connecting members, each of which is connected in a force transmission connection with the releasing member and the plurality of locking pins of one of the locking assemblies. Each of the connecting members is entirely received inside a respective one of the tracks, whereby the locking arrangement has a very compact design.

A track for a vehicle seat comprising: a lower rail; an upper rail, mounted sliding relative to the lower rail in a longitudinal direction; where a bolt has means of pivoting between a manual lever and an attachment part comprising a first part and a second part belonging respectively to the manual lever and of the attachment part, or vice versa, hinged one relative to the other around said axis of rotation. According to the present disclosure, the first part and the second part comprise means for clipping, mutually engaging, allowing an assembly of the manual lever and the attachment part by elastic deformation of the one at least of the clipping means belonging to the first part and/or to the second part.

The embodiments described and claimed herein are improved vehicle access systems. In particular, one embodiment includes three compact, motorized mechanisms for pivoting a passenger seat toward a door opening, extending the passenger seat outside the door opening, lowering the passenger seat, and tilting the passenger seat to help the passenger stand. The first mechanism concurrently pivots the passenger seat and moves it sideways during the pivoting operation so that it is aligned with the door opening. The second mechanism extends the passenger seat outside the door opening. The third mechanism lowers the seat.

A stop (11, 11′), in particular an abutment for a longitudinal adjustment mechanism, includes a stop element (15, 15′) that can be placed in various positions. The stop element is configured to automatically lock into a retaining position.

A seat adjustment assembly, and a seat and vehicle including same, are described. The seat adjustment assembly includes an assembly frame being adapted for connecting to a seat; at least one first roller rotatably connected to the at least one wall; and at least one second roller rotatably connected to the at least one wall, the assembly frame and the rollers defining a cavity, the at least one first roller being disposed generally above the cavity, the at least one second roller being disposed generally below the cavity, for each roller, when contact surfaces of the roller are in contact with a rail disposed in the cavity, the contact surfaces of the roller being offset from a lateral center of the roller, the roller and the rail defining a passage between the rail and the lateral center of the roller.

A seat track mechanism for a vehicle seat. The seat track mechanism may include an upper track, a lower track, a striker, a lever, and a pawl. The lever may be rotatable about a lever axis. The pawl may be rotatable with respect to the lever about a pawl axis when the striker engages the pawl.

A seat assembly includes a track assembly having a swivel mechanism slideably supported along the track assembly. A base frame is supported on the swivel mechanism between forward-facing and rearward-facing configurations. A seatback is pivotally coupled to the base frame by a recliner mechanism. A seat portion is pivotally coupled to the base frame and includes a front edge. The seat portion is operable between first and second positions, such that the front edge of the seat portion defines a forward-most portion of the seat assembly when the seat portion is in the first position. Further, the front edge of the seat portion is vertically juxtaposed over the base frame when the seat portion is in the second position.