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.

The invention relates to a vehicle seat (2) for reducing kinetosis-related disorders of an occupant (1) on the vehicle seat (2) during driving of a vehicle having an automatically moveable headrest (2.2) and a seat belt assigned to the vehicle seat (2). In accordance with the invention, the vehicle seat (2) and/or the headrest (2.2) move for acceleration compensation or for acceleration reduction, and/or a connection of the occupant (1) to the vehicle seat (2) is increased at least by means of the seat belt before the onset of acceleration.

A system and method for determining whether a passenger is seated in a seating area and, based at least in part on detecting the passenger, engaging or disengaging a flap in a headrest. Such a headrest may span multiple seats so that a single headrest is used by multiple passengers. Each of one or more flaps in the single headrest may then be configured by the passenger to provide each passenger with their own privacy and comfort. By actively controlling the state of the flap, a uniform passenger experience may be created so that the flap is in the same state upon a passenger entering the vehicle. Further, examples of the headrest are designed and configured to couple directly, or indirectly, to a vehicle body, such that the headrest does not couple directly to a seat or passenger seating area.

A system and method for determining whether a passenger is seated in a seating area and, based at least in part on detecting the passenger, engaging or disengaging a flap in a headrest. Such a headrest may span multiple seats so that a single headrest is used by multiple passengers. Each of one or more flaps in the single headrest may then be configured by the passenger to provide each passenger with their own privacy and comfort. By actively controlling the state of the flap, a uniform passenger experience may be created so that the flap is in the same state upon a passenger entering the vehicle. Further, examples of the headrest are designed and configured to couple directly, or indirectly, to a vehicle body, such that the headrest does not couple directly to a seat or passenger seating area.

A headrest comprising a mounting part, a resting part comprising a frame mounted on the mounting part in a rotatable manner about a pivot axis between a forward most position and a rearward most position, a locking device comprising a control rod configured to be actuated by a user so as to move between a locked position in which the resting part is prevented from moving with respect to the mounting part and an adjustment position in which the resting part is allowed to move with respect to the mounting part, and an urging device configured to urge the resting part is towards the forward most position.

A headrest comprising a mounting part, a resting part comprising a frame mounted on the mounting part in a rotatable manner about a pivot axis between a forward most position and a rearward most position, a locking device comprising a control rod configured to be actuated by a user so as to move between a locked position in which the resting part is prevented from moving with respect to the mounting part and an adjustment position in which the resting part is allowed to move with respect to the mounting part, and an urging device configured to urge the resting part is towards the forward most position.

An aircraft seat includes an actuator and a movement transmission device. The transmission device includes a frame provided with an immobilizing portion and a drive shaft. The transmission device further includes a gear wheel provided with coupling teeth having inclined side walls and a sleeve with an immobilizing portion complementary to the immobilizing portion of the frame, and coupling teeth having inclined side walls. The transmission device also has an elastic member configured to push the sleeve. The stiffness of the elastic member and the inclination of the side walls of the coupling teeth of the gear wheel and sleeve are chosen such that, when a torque greater than a threshold torque is applied to the gear wheel, the sleeve slides on the drive shaft from a position of coupling the sleeve to the gear wheel to a position of immobilizing the sleeve relative to the frame.

An occupant support includes a seat bottom, a seat back, and a cam. The seat bottom includes a side frame member. The seat back includes a headrest configured to fold about a headrest fold axis. The side frame member is rotatably coupled to the seat back and configured to rotate relative to the seat back about a side frame rotation axis. The cam is coupled to the side frame member and coupled to the headrest such that rotation of the cam causes the headrest to rotate about the headrest fold axis. Rotation of the cam about the side frame rotation axis relative to the seat back causes the cam to pull a connecting member which causes the headrest to rotate about the headrest fold axis to a folded position. The rotation of the headrest about the headrest fold axis occurs during the occupant support folding movement.

An occupant support includes a seat bottom, a seat back, and a cam. The seat bottom includes a side frame member. The seat back includes a headrest configured to fold about a headrest fold axis. The side frame member is rotatably coupled to the seat back and configured to rotate relative to the seat back about a side frame rotation axis. The cam is coupled to the side frame member and coupled to the headrest such that rotation of the cam causes the headrest to rotate about the headrest fold axis. Rotation of the cam about the side frame rotation axis relative to the seat back causes the cam to pull a connecting member which causes the headrest to rotate about the headrest fold axis to a folded position. The rotation of the headrest about the headrest fold axis occurs during the occupant support folding movement.

An electromotive adjusting device for adjusting the inclination of a seat part of an item of seating furniture includes a mounting bracket for connecting to a body element of the item of seating furniture and a motor and transmission unit embodied as a drive unit. A mounting element secures the seat part of the item of seating furniture. The motor and transmission unit includes a rotatable drive element and is securely fixed to the at least one mounting bracket.