The present disclosure discloses an apparatus comprising: a backrest; a side impact protection block movably fitted to the backrest between a folding position and an unfolding position; and a self-locking structure fitted to the side impact protection block or the backrest, the self-locking structure being configured to block the side impact protection block in the unfolding position from switching to the folding position. The self-locking structure comprises a self-locking member and a self-locking reset member, the self-locking member being fitted to the backrest or the side impact protection block, the self-locking reset member being configured to apply a force to the self-locking member to drive it into an extended position that blocks the side impact protection block in the unfolding position from switching to the folding position.

A walk-in device for a vehicle seat includes a rear link having one end connected to a seat cushion frame by a first hinge shaft, and the other end connected to an upper rail by a second hinge shaft, and a pressing bracket configured to be pressed by the rear link.

A device for locking a seat pan to a seat frame includes a housing, a latch, and a securing member. The housing is adapted to be secured to the seat pan. The latch includes a substantially planar portion and a shaped portion. The securing member secures the latch in the housing such that the latch is moveable between a resting position and a compressed position. The latch is adapted to move to the compressed position when the seat is urged into the seat frame, and, if urged further, to return to the resting position to entrap the cross member between the shaped portion and the seat pan.

A vehicle seat includes a seat back is coupled to a seat base for movement between an upright position and a folded-forward position when a vehicle seat recliner is in an open configuration. The vehicle seat includes a recliner hold-open mechanism that locks the recliner in the open configuration even after a user releases a handle or otherwise disengages an actuator of the recliner. The seat back is thus free to move between the upright and folded-forward positions without the user being required to hold the actuator in any particular position during the movement. The hold-open mechanism may be configured to cooperate with a seat-base motion controller to free the vehicle seat for movement along a foundation frame while the seat back is between the upright and folded-forward positions.

A method for producing a locking device of a longitudinal adjustment mechanism of a vehicle seat, includes producing a locking device having a plurality of round locking pins which can be latched into position independently of one another and can be unlatched together, at least one guide part and a notched strip, wherein the guide part is assigned to a seat rail and has guide bores for the locking pins. The notched strip is assigned to a floor rail. The locking pins have an upper actuating end and a lower engagement region interacting with the notched strip. The locking pins are lubricated during the production step or subsequently thereto. During and/or after the lubrication step, each individual locking pin is rotationally driven by a rotary drive unit.

A lock device is provided with: a latch unit having a slit which allows a striker to enter and exit and configured to engage with and to be disengaged from the striker; and a support member for supporting a spring member outside the latch unit in such a manner that the spring member extends in the width direction of the slit. The spring member is elastically deformed when in contact with the striker having entered the slit, and as a result, the spring member applies pressing force to the striker, the pressing force acting in the direction in which the striker exits the slit.

A seat and accessory connection system for a vehicle includes: a connection base configured to be connected to the vehicle; a seat configured to be removably connected to the vehicle at a first location on the connection base, the seat comprising at least one first connecting feature; and an accessory configured to be removably and selectively connected to either one of the connection base at the first location and the vehicle at a second location on the vehicle. The accessory has at least one second connecting feature for removably connecting the accessory to the first location and the second location. The connection base has at least one third connecting feature configured to selectively engage the at least one first connecting feature of the seat and the at least one second connecting feature of the accessory to removably connect the seat or the accessory at the first location.

There are provided a latch device, a vehicle seat, and a vehicle capable of reducing the number of components, manufacturing man-hours, and costs. A latch device includes a latch that can transition between a locked state where the latch is engaged with a striker and an unlocked state where the latch is disengaged from the striker; an unlocking operation knob for switching the latch from the locked state to the unlocked state; an indicator provided on the unlocking operation knob, and showing each state of the locked state and the unlocked state of the latch; a link that transmits each state of the latch to the indicator; and a pin that engages with the link, and that transmits each state of the latch to the indicator, each state being transmitted from the link. The pin is provided on the unlocking operation knob.

A safety seat that includes a first base, a second base positioned on the first base and rotatable relative to the first base about an axis, a seat positioned on the second base and rotatable relative to the first base about the axis, and a lock disposed on the second base. The lock has a movable lock component configured to lock the first base with the second base. The safety seat further includes an actuator configured to disengage the movable lock component from the first base and permit the second base to rotate relative to the first base, and a link comprising a first end and a second end, the link extending between the movable lock component and the actuator. The first end contacts the movable lock component and the second end contacts the actuator.

A vehicle seat having a seat part, a backrest, a kinematics mechanism for transferring the vehicle seat from a use position to a not-in-use position, and back again, and a locking device to lock the kinematics mechanism in the use position. When the locking device is unlocked, the vehicle seat is transferred out of the use position into an access position and the kinematics mechanism is coupled to a drive device by a coupling device. The coupling device has an unlocking swing arm for at least indirectly unlocking the locking device. When in the use position of the vehicle seat, activation of the drive device first unlocks the swing arm to pivot, so that the locking device is unlocked, and it is only following the pivoting movement of the unlocking swing arm that the kinematics mechanism is driven by the drive device to transfer the vehicle seat into the not-in-use position.