Active headrest with decoupled lumbar frame

Details Active headrest with decoupled lumbar frame Active headrest with decoupled lumbar frame

2007-07-03

2007-07-03

Barfield, Anthony D. (Department: 3636)

Chairs and seats

Crash seat

Force-absorbing means incorporated into headrest area

C297S216140

Reexamination Certificate

active

11247634

ABSTRACT:
The invention relates to a headrest arrangement for a backrest section (10) of a motor vehicle seat with a headrest, which receives the headrest bars and is supported in the guides on the side of the backrest, wherein the guides in the backrest can be moved within limits from a normal operating position (68) to a crash-active operating position (70).It is provided that for displacing the headrest from the normal operating position (68) relative to the backrest section, an activation unit (11) is provided, which extends essentially along, and at the same height as, a shoulder section of the seated person, wherein an activation shield (38) of the activation unit is displaced rearward in the event of a rear crash—due to the mass inertia of the seated person, whereafter the rearward displacement of the activation shield (38) is transferred via an eccentric shaft (24), causing the guides (18) of a headrest adjustment unit (12) to perform a direct rotational and translational motion so as to attain the crash-active operating position (70).

REFERENCES:
patent: 6250714 (2001-06-01), Nakano et al.
patent: 6719368 (2004-04-01), Neale
patent: 6789846 (2004-09-01), Humer et al.
patent: 6955397 (2005-10-01), Humer
patent: 198 50 158 (2000-05-01), None
patent: 101 37 684 (2003-02-01), None
patent: 102 28 675 (2003-08-01), None
patent: WO 98/09838 (1998-03-01), None

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