The present application relates to a sofa backrest adjusting apparatus with integrated headrest and lumbar cushion, which comprises a frame body arranged in a sofa cover, wherein a support rod is arranged in the middle of the frame body, a bearing support frame is arranged on the support rod, and a headrest driving mechanism and a lumbar cushion driving mechanism are arranged on the bearing support frame; the headrest driving mechanism comprises a first power module and a first transmission lead screw, the lumbar cushion driving mechanism comprises a second power module and a second transmission lead screw. According to the present application, when the first transmission lead screw and the second transmission lead screw are broken, only the second transmission lead screw needs to be replaced, so that the maintenance cost of the electric sofa can be reduced.

A seat module adapted to be attached to a seat having mechanical parts and electric devices for seat operation in a motor vehicle includes at least one operating cable for activating at least one device, and a module plate formed with a mounting feature for attaching to the seat and a retention feature for attaching the at least one operating cable. An end portion of the operating cable is temporarily stowed on the module plate in a pre-assembled state where the operating cable is attached to the module plate, and the end portion of the operating cable is connected to the electric devices and/or mechanical parts of the seat in an assembled state where the module plate with the retained operating cables is securely mounted to the seat.

A lumbar adjuster for use in a vehicle seat including a lumbar mat, a frame member, and a support member. The lumbar mat is configured to face towards a backrest cushion when the lumbar adjuster is assembled to the vehicle seat. The frame member is configured to carry the lumbar mat. The support member is operatively coupled to the frame member and provided with a finger configured deflect from an extended position to a compressed position to bias portions of the lumbar mat towards backrest cushion to minimize a gap between the lumbar mat and the backrest cushion.

An actuator arrangement for an electromagnetically actuatable valve comprises a housing having a first wall, and a second wall situated opposite the first wall, a solenoid armature, with first and second axial armature end surfaces facing toward the first and second housing walls respectively, movable along an axis between a first position, where the first end surface makes contact with the first wall, and a second position, where the first end surface is away from the first wall. A damping element of an elastomer material extends from the second end surface toward the second wall and contacts the second wall in the first and second positions of the solenoid armature, A stop element of an elastomer material extends from the second end surface toward the second wall and, in the first position, is away from the second wall and, in the second position, contacts the second wall.

To improve the seated feeling of an occupant in a seat having partially different hardness, a vehicle seat includes a seat frame, an S spring which is installed on the seat frame and receives a load of an occupant, and a seat back pad which has a plurality of regions respectively formed of different materials and is disposed between a skin material of the seat and the S spring. The S spring is disposed at a position facing a boundary portion which is provided in the seat back pad and is the plurality of regions respectively formed of different materials.

To improve the seated feeling of an occupant in a seat having partially different hardness, a vehicle seat includes a seat frame, an S spring which is installed on the seat frame and receives a load of an occupant, and a seat back pad which has a plurality of regions respectively formed of different materials and is disposed between a skin material of the seat and the S spring. The S spring is disposed at a position facing a boundary portion which is provided in the seat back pad and is the plurality of regions respectively formed of different materials.

Disclosed is an actuator unit for opening or closing a valve opening of a valve for a pneumatic adjusting device of a vehicle seat, comprising a circuit board with a top side extending in a circuit board plane, an actuating element with an actuating section for opening or closing the valve opening and a bending section connected to the actuating section, and an actuator element with a first end mechanically connected to the actuating section and a second end mechanically connected to the circuit board. The actuator element is configured to, when actuated, bend the bending section such that the actuating section is moved between a first position for opening the valve opening and a second position for closing the valve opening. The actuating section is arranged on a first side and the bending section is arranged on a second side, situated opposite the first side, respective of the circuit board plane.

A vehicle seat can be configured to provide support to a vehicle occupant in conditions when lateral acceleration is experienced. Shape memory material members can be operatively positioned with respect to a seat portion of the vehicle seat. The shape memory material members can be selectively activated by an activation input. When activated, the shape memory material members can engage a seat pan so as to cause the seat pan to tilt in a respective lateral direction. As a result, a seat cushion supported by the seat pan can also tilt in the respective lateral direction. The seat cushion can be tilted in a lateral direction that is opposite to the direction of the lateral acceleration. Thus, the effects of lateral acceleration felt by a seat occupant can be reduced. The shape memory material members can be selectively activated based on vehicle speed, steering angle, and/or lateral acceleration.

A vehicle seat can be configured to provide support to a vehicle occupant in conditions when lateral acceleration is experienced. Shape memory material members can be operatively positioned with respect to a seat portion of the vehicle seat. The shape memory material members can be selectively activated by an activation input. When activated, the shape memory material members can engage a seat pan so as to cause the seat pan to tilt in a respective lateral direction. As a result, a seat cushion supported by the seat pan can also tilt in the respective lateral direction. The seat cushion can be tilted in a lateral direction that is opposite to the direction of the lateral acceleration. Thus, the effects of lateral acceleration felt by a seat occupant can be reduced. The shape memory material members can be selectively activated based on vehicle speed, steering angle, and/or lateral acceleration.

A seating posture is stabilized for the shoulders of a passenger seated on a vehicle seat. A vehicle seat is provided with a seat back configured to support the seated person from the rear. A shoulder support portion of the seat back configured to support a corresponding one of the shoulders of the seated passenger includes an air cell configured to expand when air is supplied. When the air cell expands, one end portion of the shoulder support portion on the outside in the width direction of the vehicle seat moves more forward than the other end portion of the shoulder support portion on the inside in the width direction.