A deceleration device according to an embodiment includes a driven gear configured to rotate about a rotational axis by driving power of a drive mechanism; a deceleration unit including a plurality of gears including a first gear and a second gear, the first gear that rotates by the driven gear, the second gear that rotates about the rotational axis, the deceleration unit configured to rotate the second gear at a reduced speed with respect to the driven gear; a first contact included in the second gear; and a second contact provided separately from the driven gear and the plurality of gears and configured to come into contact with the first contact to stop the rotation of the second gear.

The present disclosure relates to a backrest for a vehicle seat comprising a backrest frame and a upper backrest adjustment device comprising a support member intended to receive, bearing against a front face, the upper back of an occupant of the seat, pivotably mounted on the backrest frame; at least one first connecting rod pivotably articulated relative to the backrest frame; an intermediate part between the support member and the first connecting rod, pivotably articulated relative to the support member and relative to the first connecting rod, an actuator for adjusting the position of the support member between a retracted position and an advanced position, the actuator comprising a pivotably articulated connecting part relative to the intermediate part.

A dual release actuator for a vehicle seat includes a motor, a cable carrier configured to receive power of the motor, thereby rotating to selectively pull one of two different cables, a Hall sensor to sense rotation of the motor, and a controller configured to count a sensing pulse of the Hall sensor for controlling rotation of the motor.

A recline adjustment assembly for a rear seat in a vehicle comprises a latch device disposed on a seatback of the seat; and a strike pivotally connected to a vehicle body behind the seatback and locked in the latch device at a use position. The latch device moves along the strike to adjust a reclining angle of the seatback as the strike pivots by a driving device.

An integrated safety seat permanently built into a vehicle. The safety seat may be united with other seats or separated from other seats, or other integrated safety seats. The integrated safety seat is configured to accommodate an occupant from newborn to adulthood in a seat bottom, as well as in a back, whereby the seat bottom, back and a cradle in between may incline upward and downward by an internal mechanism, to a plurality of angles, ranging from rear facing to forward facing. The integrated safety seat includes a headrest and footrests support in the forward facing position, which serve as a footrest and headrest support, respectively in the rear facing position. The integrated safety seat includes harnesses and lap-belts with hasps, armrests, and headrests, footrests, inserts, within that elevate. The safety seat further includes integrated safety controls that operate regardless of whether the vehicle is in operation.

A vehicle seating assembly includes a lower seat and a seatback structure extending upwardly relative the lower seat, the lower seat and the seatback structure defining a seat H-point, and the seatback structure having an upper seatback support, a lower seatback support, and a split between the upper seatback support and the lower seatback support. The split is disposed between 270 and 300 mm, preferably about 285 mm, above the H-point along a line extending substantially parallel to the seatback structure. The upper seatback support pivots about a pivot between a rearward position and a forward position relative the lower seatback support. A motorized actuation assembly is disposed within the seatback structure and operably coupled to the upper seatback support, wherein the motorized actuation assembly pivots the upper seatback support about the pivot between the rearward position and the forward position.

A structure in which two worm wheels are disposed across a worm provides an increase in locking reliability while maintaining stable operation during rotation. At the time of rotation, respective rotating fulcrums set at both end portions in an axial direction of a worm are supported by bearing parts. At the time of locking, a locking fulcrum set at an eccentric position on one end portion in the axial direction of the worm is supported by one bearing part, while on the other end portion in the axial direction, the rotating fulcrum is supported by the other bearing part as is. As a result, the angle of lead of the worm supported by the pair of bearing parts is changed between the time of rotation and the time of locking and becomes smaller at the time of locking than at the time of rotation, whereby an increase in locking reliability can be achieved.

An integrated safety seat permanently built into a vehicle. The safety seat may be united with other seats or separated from other seats, or other integrated safety seats. The integrated safety seat is configured to accommodate an occupant from newborn to adulthood in a seat bottom, as well as in a back, whereby the seat bottom, back and a cradle in between may incline upward and downward by an internal mechanism, to a plurality of angles, ranging from rear facing to forward facing. The integrated safety seat includes a headrest and footrests support in the forward facing position, which serve as a footrest and headrest support, respectively in the rear facing position. The integrated safety seat includes harnesses and lap-belts with hasps, armrests, and headrests, footrests, inserts, within that elevate. The safety seat further includes integrated safety controls that operate regardless of whether the vehicle is in operation.

The present invention relates to a vehicle seat (1) comprising a seat part (2) and a backrest (3), wherein the backrest (3) is provided in such a way that it is pivotable relative to the seat part (2) by means of a recliner (4). The present invention further relates to an adjusting mechanism.

A seat structure. A reinforcing structure in a substantially rectangular frame shape is set in an area where cushion-part side frames and back-part side frames are coupled to each other via reclining mechanism parts, from vicinities of rear portions of the cushion-part side frames up to vicinities of lower portions of the back-part side frames. The reinforcing structure increases unity of a cushion frame and a back frame, and when a load is applied to the back frame due to an impact at the time of a rear-end collision or the like, the load acts as a force deforming mainly the cushion frame via the reinforcing structure, and when the body of a seated person thereafter moves rearward, the load acts as a force deforming mainly the back frame, making it possible to use not only strength of the back frame but also strength of the cushion frame.