Abstract: A lumbar support device of a seat for a vehicle surrounds and supports the lumbar region of a passenger. In the lumbar support device, a mounting bracket is fastened to a seat back frame. A support panel is coupled to the mounting bracket through link units so as to be movable ahead of the seat back frame. Side support units are coupled to respective opposite ends of the support panel so as to be rotatable. A connection wire is connected between each of the side support units and the corresponding link unit of the support panel such that when the support panel moves forwards, the side support units surround side portions of the lumbar region of the passenger.

Abstract: A lumbar support device of a seat for a vehicle surrounds and supports the lumbar region of a passenger. In the lumbar support device, a mounting bracket is fastened to a seat back frame. A support panel is coupled to the mounting bracket through link units so as to be movable ahead of the seat back frame. Side support units are coupled to respective opposite ends of the support panel so as to be rotatable. A connection wire is connected between each of the side support units and the corresponding link unit of the support panel such that when the support panel moves forwards, the side support units surround side portions of the lumbar region of the passenger.

Abstract: A structure for guiding deploy of an airbag on a seat of a vehicle includes a sewing pattern at a side of a seat back that corresponds to a deploy direction of the airbag; a cover sewn together with the sewing pattern, an end of the cover extending toward an airbag module; and a secondary cover attached to the cover and mounted to the airbag module. The cover may have a greater tensile strength than a tensile strength of the seat cover. The connector may include a female part with a hooked end and a blocking protrusion, and a male part with a blocking protrusion configured to be inserted into the blocking protrusion of the female part.