Headrest for protecting against whiplash

Details Headrest for protecting against whiplash Headrest for protecting against whiplash

2011-04-19

2011-04-19

White, Rodney B (Department: 3636)

Chairs and seats

Crash seat

Force-absorbing means incorporated into headrest area

Reexamination Certificate

active

07926871

ABSTRACT:
The invention relates to a headrest (10) for a vehicle seat, in particular for a backrest for a motor vehicle seat, said headrest essentially comprising a headrest frame or headrest casing (14) and a foam base body (356) that surrounds the headrest frame or casing (14). In the event of a rear impact on the motor vehicle, the headrest remains fixed in relation to the backrest (conventional headrest) or at least part of the headrest is immediately displaced towards the vehicle occupant (active headrest). According to the invention, the head of a vehicle occupant can be brought into contact with the headrest (10) at least at two different heights (k1z, k2z), (two-point contact), to reduce or neutralize a torque (My) about a y-axis (y-y) in the vicinity of the vertebral column and to prevent accident-related injuries to the seat occupant, in particular to prevent cervical spine syndrome or a whiplash injury in the event of a front and/or rear impact. A head centre of gravity (HCG) is also configured between the two heights (k1z, k2z) of the headrest (10).

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