A circuit arrangement for controlling a system, and a system having a circuit arrangement, both suitable for use with a lumbar support with at least two air cushions, may include actuators, voltage supply paths, and electronic switching elements.

A circuit arrangement for controlling a system, and a system having a circuit arrangement, both suitable for use with a lumbar support with at least two air cushions, may include actuators, voltage supply paths, and electronic switching elements.

A fold and dive seat for a vehicle that achieves a fatigue reduction posture is provided. The seat includes a tip up-extension mechanism that enables tipping-up and extension of the front end of a seat cushion and a seatback reclining mechanism for the fold and dive seat so that tipping-up for lifting the front end of the seat cushion and extension for extending the front end forward are performed simultaneously performed when the seatback reclining is performed.

A fold and dive seat for a vehicle that achieves a fatigue reduction posture is provided. The seat includes a tip up-extension mechanism that enables tipping-up and extension of the front end of a seat cushion and a seatback reclining mechanism for the fold and dive seat so that tipping-up for lifting the front end of the seat cushion and extension for extending the front end forward are performed simultaneously performed when the seatback reclining is performed.

A vehicle seat comprising a seatback mounted pivoting by an articulation mechanism selectively lockable and unlockable, relative to a seatback footing selectively lockable and unlockable on a base, where the seat further comprises a seat cushion, first and second rear connecting rods connecting the seatback to the base, an actuating device being configured, by rotation of the first rear connecting rod, for driving the seatback into a folded down position when the articulation mechanism is unlocked and the seatback footing is locked on the base, and for driving the seat in a forward tilted position when the seatback footing is unlocked and the articulation mechanism is locked.

A transformable seat assembly includes a seat support structure and a back support structure connected to the seat support structure with a hinge defining an axis of rotation. An actuator assembly includes a cylinder and a piston positioned within the cylinder, wherein the cylinder is secured to one of the back support structure or the seat support structure and the piston is secured to other of the one of the back support structure or the seat support structure. Additionally a blocking member is positioned within and adjustable along the cylinder. With blocking member in a first position, piston is limited to travel to a first limit position and the back support structure to a first reclined position. With the blocking member in a second position, piston is limited to travel to a second limit position and back support structure is permitted to rotate to second reclined position.

A transformable seat assembly includes a seat support structure and a back support structure connected to the seat support structure with a hinge defining an axis of rotation. An actuator assembly includes a cylinder and a piston positioned within the cylinder, wherein the cylinder is secured to one of the back support structure or the seat support structure and the piston is secured to other of the one of the back support structure or the seat support structure. Additionally a blocking member is positioned within and adjustable along the cylinder. With blocking member in a first position, piston is limited to travel to a first limit position and the back support structure to a first reclined position. With the blocking member in a second position, piston is limited to travel to a second limit position and back support structure is permitted to rotate to second reclined position.

A cable actuating mechanism that actuates through a central pivot axis of a pivoting mechanism including two articulating cable actuators that contact opposing ends of a floating pin that passes through the center of the pivot. One actuator is affixed to a stationary assembly of the pivot device and the other actuator is affixed to a rotating body of the device. A first cable pulled at one end of the device pulls a second cable at an opposing end of the device through the articulating cable actuators. The cable actuating mechanism can be used to unlock, for example, a seat recline lock device in an aircraft seat equipped with a pivoting armrest, among other applications within and outside of an aircraft cabin environment.

A passenger seat for an aircraft has a fixed seat portion with a front facing toward a first direction of the aircraft. The fixed seat portion has a centerline spaced equally from opposed lateral sides of the fixed seat portion. A first engagement member extends upwardly from the front at the centerline to a first engagement end. A moveable seat portion is mounted onto the fixed seat portion and is displaceable relative thereto. The moveable seat portion has a second engagement member extending downwardly from a front of the moveable seat portion to a second engagement end. The second engagement member is displaceable with the moveable seat portion to position the second engagement end under the first engagement end in an engagement position such that the overlapping first and second engagement ends prevent the moveable seat portion from pitching in a second direction opposite to the first direction.

The invention relates to a motor vehicle seat for motor vehicles comprising an adjustment device for a backrest head adjustment, the motor vehicle seat having a backrest, which has a backrest frame as the first component of the backrest head adjustment and a backrest head as the second component of the backrest head adjustment, and an actuator. The backrest head is pivotably connected to the backrest frame and the actuator has a driving element and a movable element, the actuator being connected to the backrest frame and the backrest head and it being possible to carry out a linear movement by means of the actuator. The driving element of the actuator is rigidly connected to the backrest frame or backrest head and the movable element of the actuator has a guide element which engages in a guide arranged on the backrest frame or backrest head.