A gearing arrangement for a spindle drive arrangement may have a gearing housing and a gearing holder. The gearing holder may have at least two receiving openings, one for each fastening screw or one for each fastening bolt for fastening to another component, in particular to a vehicle seat. The at least two receiving openings may be oriented at right-angles and/or obliquely with respect to one another. A spindle drive arrangement having such a gearing arrangement, and also to a vehicle seat having such a spindle drive arrangement is also provided.

A vehicle seat may have adjustment kinematics and a drive device for driving the adjustment kinematics. The adjustment kinematics may have at least one movable rocker and a transverse tube which is mounted rotatably about an axis of rotation. An end region of the rocker may be connected to the transverse tube for rotation therewith. A toothed segment which is curved about the axis of rotation may be connected to the transverse tube for rotation therewith, and, in order to drive the adjustment kinematics, the toothed segment is rotatable about the axis of rotation by the drive device.

A one-way damping structure (1), comprising a spring (11), a drive element (12) and a friction force generation member, the spring (11) and the drive element (12) being connected such that the spring (11) is driven by means of the drive element (12); the spring (11) comprises a fixing portion (111), a connecting portion (112) and an annular portion (113), the connecting portion (112) being located between the fixing portion (111) and the annular portion (113) and connecting the fixing portion (111) to the annular portion (113), and the fixing portion (111) being fixed; and the annular portion (113) comprises at least half a turn for defining a spring opening which spirally extends in the circumferential direction, and slides relative to the friction force generation member so as to generate friction torque. Also disclosed is an adjusting assembly which comprises the described one-way damping structure (1). A seat height adjuster utilizes one-way damping properties in which the spring (11) of the one-way damping structure (1) generates different torques in different rotation directions; moreover, in combination with a traditional output structure (2) and an installation structure (3), a driver (4) continues to stably defy a fixed load so as to work when the seat is adjusted downwards under the load, and the lifting ability is unaffected when the seat is adjusted upwards.

A manually operated seat height adjustment actuator mechanism includes a rotatory actuator-driven torque input mechanism defining a first axis and a torque output mechanism defining a second axis offset from the first axis. The rotatory actuator-driven torque input mechanism is provided by a planetary gear assembly. The torque output mechanism comprises a cycloidal drive assembly including eccentrically driven gears. Linking gearing operatively links the torque input mechanism and the torque output mechanism. The eccentrically driven gears engage an output pinion configured to engage a gear segment of a seat height adjustment mechanism for raising and lowering a seat.

A motor vehicle seat with a seat inclination adjustment device, with a first base element, a first seat frame element and a first actuator element, the actuator element has a lower link arm connected to the base element and arranged movably relative to the base element, an upper link arm connected to the lower link arm and movably arranged relative to the lower link arm, the upper link arm is connected to the seat frame element and is movably arranged, and a linear actuator with first and second linear actuator elements, the first linear actuator element is movably connected to the second linear actuator element and the first linear actuator element is movably connected to the base element and the second linear actuator element is movably connected to one of the link arms.

An adjustment mechanism for a vehicle seat comprising a transmission housing and a slider comprising a first longitudinal guide member. The slider engaging with the transmission housing by means of the first longitudinal guide member.

A frame for a vehicle seat comprises two side parts and swing arms pivotable in relation thereto for height adjustment of the frame. The swiveling of the swing arms can be caused by operating two actuator arms. Each actuator arm is associated with another swing arm so that the associated swing arm can be swiveled by actuating the respective actuator arm.

A vehicle seat includes a seat base operably coupled with a seatback and having a seat pan. An upper connector is positioned on the seat pan. A lift assembly is operably coupled with the seat pan and includes a bracket defining a bracket slot. An outer link has a first end rotatably coupled with the seat pan and a second end that includes a lower connector. The lower connector is slidably received by the bracket slot. An inner link has a first end rotatably coupled with the bracket and a second end that defines a link slot. The link slot is configured to receive the upper connector. A sector gear is configured to facilitate vertical translation of the seat base.

A vehicle seat includes a seat base operably coupled with a seatback and having a seat pan. An upper connector is positioned on the seat pan. A lift assembly is operably coupled with the seat pan and includes a bracket defining a bracket slot. An outer link has a first end rotatably coupled with the seat pan and a second end that includes a lower connector. The lower connector is slidably received by the bracket slot. An inner link has a first end rotatably coupled with the bracket and a second end that defines a link slot. The link slot is configured to receive the upper connector. A sector gear is configured to facilitate vertical translation of the seat base.

A frame for a vehicle seat comprises two side parts and swing arms pivotable in relation thereto for height adjustment of the frame. The swiveling of the swing arms can be caused by operating two actuator arms. Each actuator arm is associated with another swing arm so that the associated swing arm can be swiveled by actuating the respective actuator arm.