HEADREST FOR A VEHICLE SEAT

摘要

A vehicle seat headrest has a first sub-piece facing a seat occupant head, a second sub-piece and an energy storage device with a trigger actuator arranged between the first sub-piece and the second sub-piece. The first sub-piece is moveable relative to the second sub-piece out of a use position into a safety position along a movement direction towards the a seat occupant head as a result of an accident under the effect of a discharge of the energy storage device, which is actuated by the trigger actuator. The headrest is configured such that the volume of an expansion area is increased while the first sub-piece is moved relative to the second sub-piece as a result of an accident and by the effect of the discharge of the energy storage device. The headrest has a sealing device between the first sub-piece and the second sub-piece to delimit the expansion area.

主权项

1. A headrest for a vehicle seat, the headrest comprising:
at least one first sub-piece which faces the head of a seat occupant; a second sub-piece; and at least one energy storage device with a trigger actuator, the at least one energy storage device being arranged between the first sub-piece and the second sub-piece, wherein: the first sub-piece is moveable relative to the second sub-piece—out of a use position into a safety position along a movement direction toward the head of the seat occupant as a result of an accident under the effect of a discharge of the energy storage device, which is actuated by means of the trigger actuator; the headrest is configured such that the volume of an expansion area is increased with the first sub-piece moved relative to the second sub-piece as a result of an accident and by means of the effect of the discharge of the energy storage device; and the headrest has a sealing means between the first sub-piece and the second sub-piece to delimit the expansion area.