There are improved a vibration absorption characteristic and an impact absorption characteristic. In a suspension mechanism 1 of the present invention, first and second dampers (150, 160) are suspended in parallel between an upper frame (120) and a lower frame (110) with mounting angles different from each other. For this reason, the smaller mounting angle the damper has, the smaller a vertical component of damping force becomes, and the damping force which acts on the upper frame (120) and the lower frame (110) which move up and down relatively is moderate in effectiveness as compared with a case of disposing all the dampers at the same mounting angle. Thus, a sense of incongruity in which strong damping force acts abruptly is suppressed and the vibration absorption characteristic and the impact absorption characteristic are improved, which leads to improvement in ride comfort.

The invention relates to a device for adjusting a seat position for a vehicle seat, wherein the device comprises at least one support element for a seat part and can be connected to a seat substructure, wherein the device comprises at least one first leg and at least one second leg, the legs being rotatably arranged on the seat substructure and the at least one support element, wherein a first angle α can be adjusted between the first leg and the support element by means of an angle adjustment device, wherein the at least one first leg and the at least one second leg are mechanically coupled, wherein a change of the angle α causes a displacement of the at least one support element along a height axis Z and along a longitudinal axis X.

The seat base may include a frame with a polygonal geometry, a first leg assembly hingedly coupled to the frame, and a second leg assembly hingedly coupled to the frame. The seat base may also include a first leg hingedly coupled to the frame, a second leg hingedly coupled to the frame, and a cross member coupled to the first leg and the second leg. A guide may protrude from the frame. The guide may define a recess. A retention pin may engage the recess and retain the first leg assembly in a deployed position. The frame may also have quadrilateral perimeter. The seat base may further include an interior cross member fixedly coupled to the frame, and a pin protruding from the cross member. The pin may engage a seat. A loop may extend from the frame and engage the seat.

A kinetic seat assembly that rotates based on a force applied on an occupant seated therein is provided. The kinetic seat assembly includes a primary seat cushion frame, a primary seat back frame, a secondary seat cushion frame pivotally connected to the primary seat cushion frame, and a secondary seat back frame pivotally connected to the primary seat back frame. The kinetic seat assembly further includes a front pivot mechanism for damping movement between the primary seat cushion frame and the secondary seat cushion frame in a kinetic seat vertical direction, and an upper pivot mechanism for damping movement between the primary seat back frame and the secondary seat back frame in a kinetic seat longitudinal direction.

There are improved a vibration absorption characteristic and an impact absorption characteristic. In a suspension mechanism 1 of the present invention, first and second dampers (150, 160) are suspended in parallel between an upper frame (120) and a lower frame (110) with mounting angles different from each other. For this reason, the smaller mounting angle the damper has, the smaller a vertical component of damping force becomes, and the damping force which acts on the upper frame (120) and the lower frame (110) which move up and down relatively is moderate in effectiveness as compared with a case of disposing all the dampers at the same mounting angle. Thus, a sense of incongruity in which strong damping force acts abruptly is suppressed and the vibration absorption characteristic and the impact absorption characteristic are improved, which leads to improvement in ride comfort.

A kinetic seat back assembly that rotates based on a force applied on an occupant seated therein is provided. The kinetic seat back assembly includes a primary seat back frame, a secondary seat back frame, a seat back tilt mechanism coupling the secondary seat back frame to the primary seat back frame such that the secondary seat back frame is movable with respect to the primary seat back frame, and an upper pivot mechanism that pivotally couples an upper portion of the primary seat back frame to an upper portion of the secondary seat back frame.

A kinetic seat back assembly that rotates based on a force applied on an occupant seated therein is provided. The kinetic seat back assembly includes a primary seat back frame, a secondary seat back frame, a seat back tilt mechanism coupling the secondary seat back frame to the primary seat back frame such that the secondary seat back frame is movable with respect to the primary seat back frame, and an upper pivot mechanism that pivotally couples an upper portion of the primary seat back frame to an upper portion of the secondary seat back frame.

A kinetic seat assembly that rotates based on a force applied on an occupant seated therein is provided. The kinetic seat assembly includes a primary seat cushion frame, a primary seat back frame, a secondary seat cushion frame pivotally connected to the primary seat cushion frame, and a secondary seat back frame pivotally connected to the primary seat back frame. The kinetic seat assembly further includes a front pivot mechanism for damping movement between the primary seat cushion frame and the secondary seat cushion frame in a kinetic seat vertical direction, and an upper pivot mechanism for damping movement between the primary seat back frame and the secondary seat back frame in a kinetic seat longitudinal direction.

The invention relates to a device for adjusting a seat position for a vehicle seat, wherein the device comprises at least one support element for a seat part and can be connected to a seat substructure, wherein the device comprises at least one first leg and at least one second leg, the legs being rotatably arranged on the seat substructure and the at least one support element, wherein a first angle α can be adjusted between the first leg and the support element by means of an angle adjustment device, wherein the at least one first leg and the at least one second leg are mechanically coupled, wherein a change of the angle α causes a displacement of the at least one support element along a height axis Z and along a longitudinal axis X.

Device for the height adjustment of a vehicle seat, wherein the device comprises a lower part for arranging on a vehicle, wherein the device has an upper part for arranging a vehicle seat and/or for arranging a rotary unit for a vehicle seat, wherein the lower part and the upper part are coupled together via an actuating arm, wherein the device has a damping member. The device is characterized in that the damping member is present between the upper part and the lower part, wherein the damping member is configured to alter a spacing of the upper part relative to the lower part and wherein the device comprises a spring element and the spring element is present on the device such that it acts counter to a direction of extension of the damping member.