Suspension device for a vehicle seat, comprising an upper suspension portion and a lower suspension portion, which are interconnected by a first swivel connector and a second swivel connector, wherein the suspension device comprises a first adjustable toothed wheel element arranged on the upper suspension portion, a second toothed wheel element connected to the first swivel connector for adjusting a position of a first spring unit, by means of which a spring force and a spring rate of the suspension device can be changed, and a third toothed wheel element which is at least operatively connected to the first and the second toothed wheel element and is connected to the first swivel connector.

A clutch unit used for a vehicle seat includes an input side clutch configured such that one member of an input side inner ring member and an input side outer ring member rotates with a rotation of an operation lever, and the other member is rotated via an input side transmission member, so that a rotation of the operation lever is transmitted to an output side clutch. A rotation suppressing member configured to apply a rotational resistance force greater than a force for the co-rotating is provided between the other member and a member that does not rotate during a return operation of the operation lever, so as to suppress co-rotation of the other member by the one member during the return operation to the neutral position.

A height adjustment apparatus for a vehicle seat may include a pinion gear mounted in a side frame having a front portion and a rear portion are connected to a seat bracket by links; a rack gear engaged with a top end of the pinion gear and coupled with the seat bracket via an hinge, the rack gear moving according to driving of the pinion gear to raise and lower the side frame; and a play adjustment bracket for guiding up and down motion of the moving rack gear by providing repulsive force to a top portion of the rack gear, the play adjustment bracket being fixedly positioned by being fastened with a plurality of support pins provided in the pinion gear and the side frame.

A vehicle seat (11) includes a seat frame (22a) having an opening (46) in a plate-shaped part (43), andan actuator (31) mounted on the plate-shaped part (43). Accordingly, it is possible to provide a vehicle seat that further contributes to quietness in the interior of a vehicle.

The present disclosure relates to a stepless brake device of a vehicle seat. The coupling piece formed on the plate cover disposed on the outermost rear surface is caulked and coupled to the housing cover disposed on the outermost front side. Therefore, the components are firmly coupled, and no axial gap occurs between the components. Also, tolerance accumulation of the components does not occur, so that the tilt of the roller is reduced, and thus, collision noise of the roller during the release operation is prevented.

The present disclosure relates to an adjustment device for a vehicle seat comprising adjusters adjustable in relation to one another, where on the first adjuster a toothed rack with an interlocking is hinged, and on the second adjuster a pinion is pivoted, the interlocking engaging with the pinion for adjusting the toothed rack and for moving the two adjusters in relation to one another, where, further, a toothed rack blocking element is affixed to the second adjuster, and the toothed rack, when adjusted, runs between the toothed rack blocking element and the pinion.

An automobile seat and an automobile comprising same, the automobile seat comprising a seat base, a seat back and a seat back adjusting mechanism; the seat back adjusting mechanism comprises a rotating part which is disposed at the lower end of the seat back; the rotating part rotates about the rear end part of the seat base to enable the angle between the seat back and the seat to be changed, and the center of rotation of the rotating part is located below the upper end surface of the seat base. A small step difference may be formed between the lower end part of the seat back and the upper end surface of the seat base when the seat back rotates, and a step difference may even be avoided. The lower end part of the seat back basically does not abut against and press the back of a passenger.

A multi-position seat configured to maximize usability thereof through various changes in the positions of a seat back and a seat cushion may include a height assembly configured to move a base frame mounted on a vehicle body, a slide assembly configured to move a seat cushion frame, which is positioned above the base frame and is connected to the base frame via a link mechanism, upwards and downwards by sliding action of the link mechanism in a forward and backward direction, a tilt assembly configured to move a rear end portion of the seat cushion frame upwards and downwards, and a seat back frame hingedly coupled to a rear end portion of the base frame to be reclined.

A brake-side clutch part includes an outer ring whose rotation is restricted and an output shaft from which rotation is output. The outer ring is provided with a slide gear that meshes with the output shaft when rotational torque is cut off and releases a meshing state with the output shaft when rotational torque is transmitted. The output shaft is provided with an inner gear that meshes with the slide gear so as to be slightly rotatable. An alignment part that aligns a phase of the inner gear with that of the slide gear when rotational torque is cut off, and a centering part that returns the inner gear to a neutral position with respect to the output shaft when rotational torque is transmitted are provided between the inner gear and the output shaft.

Provide is a vehicle seat capable of inhibiting rattling of a seat cushion provided with a lifting device. One embodiment of the present disclosure is a vehicle seat including a lifting device for a seat cushion. The lifting device includes a pinion gear, a sector gear engaged therewith, a link rotating, together with the sector gear, with respect to the cushion frame, and a rubber member attached to the cushion frame. The link is displaced between a first position where a position of the seat cushion is lowest and a second position where the position of the seat cushion is highest. When the link is at the first position, or at the second position, or in a region between the first position and the second position, the rubber member is brought in pressure contact with the sector gear along a direction intersecting a rotational axis of the sector gear.