The present invention relates to an adjustment device for adjusting the inclination of the backrest (14) of a seat (10) of a vehicle, which allows to perform both quick adjustments of large angular amplitude and fine adjustments. According to a possible embodiment of the invention, the adjustment device comprises separate control elements (20, 22) for performing quick adjustments and fine adjustments, respectively, of the inclination of the backrest (14). According to another possible embodiment of the invention, the adjustment device comprises a single control element (20) for performing both quick adjustments and fine adjustments of the inclination of the backrest (14).

A drive member including a motor with a longitudinal axis and with at an actuating end a gear mechanism. A support member carries a displacement rod that is movably mounted on the support member. The motor is with its actuating end connected to the support member. The gear mechanism includes a hinge member allowing pivoting of the displacement rod about a pivot axis that is oriented transversely to the longitudinal axis. The gear mechanism engages with the displacement rod and the support member is hingingly attached to a fixation bracket in a hinge connection that is hingeable about an axis which is oriented transversely to the longitudinal axis. The drive member can be used for the adjustment of the backrest of a rear seat in a motor vehicle.

A linear actuator for adjusting a seat component of a motor vehicle seat includes a lead screw having a rod head. A fastening means is connected to the rod head and connectable to a first seat component of the motor vehicle seat. The first seat component has a bearing, with the fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation.

A device for constraining rotational motion of an actuator such as a seat actuator during a dynamic event. The device includes a first part attachable to a fixed frame member and carrying a first clip, and a second part attachable to an actuator and carrying a second clip. Prior to and following a dynamic event sufficient to cause actuator rotational motion the first clip and the second clip are disengaged. During the dynamic event the second clip is configured to engage the first clip to momentarily stop rotational motion of the actuator such that load on the actuator passes through the actuator shaft into the frame. In embodiments, the device is configured to minimize actuator deformation during a dynamic event while allowing a full range of standard motion during normal use of the actuator.

An actuator provides linear motion between two points, and includes a motor, a spindle assembly and a gear assembly that connects the motor to a spindle of the spindle assembly and drives the spindle to rotate about a spindle axis. The gear assembly includes a gear housing that encloses gears and a portion of the spindle. The gear assembly including the gear housing is modular in that it includes features that allow it to be easily adapted by a rearrangement of components, and/or by substitution of certain components, to accommodate the requirements of multiple different applications.

A vehicle seat includes a seat bottom coupled to floor of a vehicle and a seat back coupled to the seat bottom to move relative to the seat bottom. The seat back includes a backrest and a backrest adjuster configured to move relative to the backrest to change a shape of the backrest.

A seat position adjustment apparatus for a vehicle may include fixed rails fixed on a bottom plane; first sliding rails configured to slide in forward and backward directions on the fixed rails respectively, and provided with cushion links rotatably coupled to the cushion frame; second sliding rails configured to move with the first sliding rails and slide on and protrude from the first sliding rails, and formed to support the cushion frame with the cushion links; a driving device mounted to the first sliding rails or the second sliding rails and configured to transmit power to the first sliding rails and the second sliding rails; and a seat back link rotatably mounted on the bottom plane or the fixed rails and rotatably coupled to and supporting a seat back frame.

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.

The present disclosure relates to a shoulder adjustment mechanism for a seat backrest, comprising: an upper backrest frame (10) and a lower backrest frame (20) in an up-and-down arrangement, each of the upper backrest frame (10) and the lower backrest frame (20) including a first side and a second side opposing to each other in a left-right direction, a third side facing a seat, and a fourth side facing away from the seat; a pair of first hinges (30) hingedly connected to the first sides and the second sides of the upper backrest frame (10) and the lower backrest frame (20) and close to the third sides; a pair of second hinges (40) hingedly connected to the first sides and the second sides of the upper backrest frame (10) and the lower backrest frame (20) and close to the fourth sides, the lower backrest frame (20) being provided with sliding grooves (200); a first base (50) fixed to the lower backrest frame (20); a first transmission structure (60) rotatably mounted on the first base (50) and in driving connection with a motor, wherein a spacing exists between a rotating position of the first transmission structure (60) and a fixed position of the first base (50); a first lead screw (70) in transmission connection with the first transmission structure (60) and connected with the second hinge (40), wherein the motor drives the first lead screw (70) to move through the first transmission structure (60), thereby bringing the second hinges (40) to move in the sliding grooves (200).

The present invention is directed to a linear actuator including an external adjustable variable limit switch. The linear actuator allows the position of the limit switch to be adjusted without disassembling the linear actuator or motor. In one embodiment, the linear actuator includes a profile tube having an upper end and a lower end, a slot that runs from the upper end to the lower end of the profile tube, and an internal track that runs from the upper end to the lower end of the profile tube. The linear actuator also includes at least one limit switch mounted on the slot and a limit switch adjuster and a locking fastener configured to permit the position of the limit switch to be adjusted without disassembly of the linear actuator or motor. The limit switch adjuster is further configured to be positioned in the internal track.