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

A connecting element (3) for adjusting the height of a vehicle seat (1) includes an angular element (3.1) with a first leg (3.1.1) having a seat part side receiving opening (3.1.5) and an opposite rail side end receiving opening (3.1.4), and a second leg (3.1.2) angled relative to the first leg (3.1.1) and a tooth element (3.2). The seat part receiving opening (3.1.5) is situated in a connection area of the first leg (3.1.1) and of the second leg (3.1.2). The tooth element (3.2) has a first section (3.2.1) configured as a circular arc with toothing (V2) that is connected at an end side to the second leg (3.1.2) and a second section (3.2.2) that is angled from the first section (3.2.1) in the direction of the receiving opening (3.1.5) on the side of the seat part and is connected to the first leg (3.1.1) at the end side.

A connecting element (3) for adjusting the height of a vehicle seat (1) includes an angular element (3.1) with a first leg (3.1.1) having a seat part side receiving opening (3.1.5) and an opposite rail side end receiving opening (3.1.4), and a second leg (3.1.2) angled relative to the first leg (3.1.1) and a tooth element (3.2). The seat part receiving opening (3.1.5) is situated in a connection area of the first leg (3.1.1) and of the second leg (3.1.2). The tooth element (3.2) has a first section (3.2.1) configured as a circular arc with toothing (V2) that is connected at an end side to the second leg (3.1.2) and a second section (3.2.2) that is angled from the first section (3.2.1) in the direction of the receiving opening (3.1.5) on the side of the seat part and is connected to the first leg (3.1.1) at the end side.

A seat and seatback linkage mechanism includes: a pipe, a side bracket assembly, a seat, a seatback and driving source. The side bracket assembly includes a first side bracket and a second side bracket, and the pipe is mounted on the first and second side brackets. The seat is disposed between the first and second side brackets and includes a bottom surface, the bottom surface includes two first connecting portions and two second connecting portions, and the first connecting portions are pivotally connected to the first and second side brackets, respectively. The seatback is disposed between the first and second side brackets and connected to the second connecting portions of the seat, so that the seatback and the seat are drivingly connected to each other. The driving source is connected to one end of the seatback that is adjacent to the pipe to drive the driven end to move.

A seat and seatback linkage mechanism includes: a pipe, a side bracket assembly, a seat, a seatback and driving source. The side bracket assembly includes a first side bracket and a second side bracket, and the pipe is mounted on the first and second side brackets. The seat is disposed between the first and second side brackets and includes a bottom surface, the bottom surface includes two first connecting portions and two second connecting portions, and the first connecting portions are pivotally connected to the first and second side brackets, respectively. The seatback is disposed between the first and second side brackets and connected to the second connecting portions of the seat, so that the seatback and the seat are drivingly connected to each other. The driving source is connected to one end of the seatback that is adjacent to the pipe to drive the driven end to move.

A seat includes a pivotally movable bottom, a pivotally movable backrest independent from the bottom, a first supporter suspending and supporting a front side of the bottom, and a second supporter suspending a rear side of the bottom from a side behind the backrest section, and pivotally movably supporting the bottom together with the first supporter. According to the seat, the front side and the rear side of the bottom are suspended and supported. Thus, compared to a seat in which a front side of a bottom is supported in a cantilever manner, the seat is capable of ensuring bearing capacity for a seating load. The rear side of the bottom is suspended and supported from a side behind the backrest section. Accordingly, a support structure around the bottom including the front side of the bottom can be downsized.

A seat includes a pivotally movable bottom, a pivotally movable backrest independent from the bottom, a first supporter suspending and supporting a front side of the bottom, and a second supporter suspending a rear side of the bottom from a side behind the backrest section, and pivotally movably supporting the bottom together with the first supporter. According to the seat, the front side and the rear side of the bottom are suspended and supported. Thus, compared to a seat in which a front side of a bottom is supported in a cantilever manner, the seat is capable of ensuring bearing capacity for a seating load. The rear side of the bottom is suspended and supported from a side behind the backrest section. Accordingly, a support structure around the bottom including the front side of the bottom can be downsized.

A vehicle seat is provided including at least first and second movable seat elements relatively to each other and at least one actuator ensuring a relative movement between both elements. The actuator includes a sensor for measuring a piece of representative information of the position of a first seat element relatively to a second seat element. The sensor includes an inclinometer secured to the first seat element. The piece of representative information of the position of the first seat element is an inclination of the first seat element.

A vehicle seat is provided including at least first and second movable seat elements relatively to each other and at least one actuator ensuring a relative movement between both elements. The actuator includes a sensor for measuring a piece of representative information of the position of a first seat element relatively to a second seat element. The sensor includes an inclinometer secured to the first seat element. The piece of representative information of the position of the first seat element is an inclination of the first seat element.

A seat driving device for a seat including a first position adjusting mechanism and a second position adjusting mechanism, wherein a first clutch mechanism is configured to set an output shaft and an input shaft of the first clutch mechanism to be in a connection state regularly and to maintain the output shaft and the input shaft of the first clutch mechanism in the connection state as an first operation member corresponding to the first position adjusting mechanism is operated, and wherein a second clutch mechanism is configured to set an output shaft and an input shaft of the second clutch mechanism to be in a disconnection state regularly and to switch the output shaft and the input shaft of the second clutch mechanism to a connection state as a second operation member corresponding to the second position adjusting mechanism is operated.