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 seating system for at least one occupant in a vehicle interior is disclosed. The seating system may provide a seat assembly with a base assembly configured to be mounted in the vehicle interior and a seat structure configured to be coupled to the base assembly and providing a seat configured for movement relative to the base assembly. Movement of the seat relative to the base assembly may be made by at least two of recline movement or swivel movement or tilt movement. Recline movement may be generally translating movement of the seat structure. Swivel movement may be rotational movement of the seat structure. Tilt movement may be generally translating movement of the seat structure transverse to recline movement. The base assembly may be a mechanism configured to facilitate movement of the seat structure relative to the base assembly.

A vehicle seat includes a back frame connected to a base member so as to be able to rotate around a first rotation shaft; a rotation locking mechanism; a cushion frame connected to the back frame so as to be able to rotate around a second rotation shaft, and in which a long hole is formed; a link member connected to the base member so as to be able to rotate around a third rotation shaft; a fourth rotation shaft fixed to the link member and inserted in the long hole so as to be able to move relatively and so as to be able to rotate; and movement restricting portion provided between the fourth rotation shaft and an inner surface of the long hole, and that restricts movement of the fourth rotation shaft from one end portion of the long hole toward another end portion side.

A vehicle seat having a pivoting function about a vertical axis, the seat comprising a pivoting assembly) with a base, a rotating ring mounted on the base by means of a hinge mechanism interposed between the base and the rotating ring, a seating portion frame connected to the rotating ring, directly or via a raising mechanism and/or longitudinal rails, the hinge mechanism allowing rotation, about a vertical main axis, of the rotating ring relative to the base and blocking any substantial movement in the other degrees of freedom, namely the other two rotations and the three translations in an orthogonal reference system.

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.

Provided is a vehicle seat including: a seat cushion supported by a support member so as to be rotatable around an axial direction along the seat up-down direction; a seatback configured such that the angle of the seatback relative to the seat cushion is adjustable by unlocking and locking of an angle adjustment mechanism, the seatback being biased to be tilted forward in the seat front-rear direction when the angle adjustment mechanism is unlocked; an operated member configured to unlock and lock the angle adjustment mechanism, the operated member being placed on a first end side of the seat cushion in the seat width direction; and an operating member provided in the support member such that the operating member is configured to relatively operate the operated member along with a rotation of the seat cushion so as to unlock the angle adjustment member.

A swivel assembly is provided for moving a vehicle seat in an angular direction. The swivel assembly may include a lower plate, a rotating plate, a gear ring, a motor, and a locking pin assembly. The lower plate may be attached to a vehicle floor. The rotating plate may be attached to the vehicle seat. The gear ring may be fixedly attached to the rotating plate. The motor may be coupled to the gear ring and drive the gear ring to move in the angular direction to cause corresponding movement of the rotating plate and the vehicle seat. The locking pin assembly may include a locking pin that is movable relative to the lower plate between an unlocked position and a locked position. The locking pin may move into and out of engagement with the rotating plate to selectively restrict and allow movement of the rotating plate.

The present disclosure relates to a power swivel device for a vehicle seat where a brake unit is installed between a fixed plate mounted to a seat rail and a rotating plate mounted to a seat. The brake unit delivers rotational force of the motor to the rotating plate when the motor is operated and constrains a flow in a rotational direction of the rotating plate when the motor is stopped. Accordingly, it is possible to prevent a flow of a seat in a rotational direction due to gear backlash.

A rotating device for a vehicle interior item is provided with latching means that is provided on a side of a base member having a rotation support part, and engagement means that is provided on a side of a rotating member supporting a vehicle interior item and being rotatably supported by the rotation support part, and can be switched between a state in which the engagement means engages with the latching means so as to suppress detachment of the rotating member from the base member and a state in which the engagement with the latching means is released when the rotating member attains the rotatable state, wherein the latching means and the engagement means are disposed further outside than the rotating member in plan view at least when the rotating member is in the non-rotating state. Accordingly, it is possible to suppress an increase in the height while suppressing detachment when the vehicle interior item is not rotating.

In a seat-rotating device that enables a seat to be rotated on a base member, a rattle-suppressing member operating in association with a lock member, which switches between the locked state in which rotation of an annular rotating member supporting a seat frame is prevented and release of the locked state, is in close contact with both a support member and the annular rotating member when the lock member is at the locked position, and a gap is created between the support member and the annular rotating member when the lock member attains the lock release position. Accordingly, it is possible to prevent the seat from rattling when it is in a stationary state and to facilitate rotation by releasing the rattle-preventing state when the seat is rotating.