Chairs and seats – Headrest – Movable to inoperative position rearwardly of back
Reexamination Certificate
1999-11-03
2001-08-28
Cuomo, Peter M. (Department: 3624)
Chairs and seats
Headrest
Movable to inoperative position rearwardly of back
C297S408000, C297S409000
Reexamination Certificate
active
06279996
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to headrest arrangements for vehicle seats which can be pivoted from a storage position to an operative position.
A headrest arrangement disclosed in U.S. Pat. No. 4,822,102 provides a transversely subdivided, two-piece headrest forming two angles as viewed from the side and capable of swinging about a fixed backrest pivot between an operating position in which it extends substantially as a continuation of the backrest and a storage position in which it either rests on a storage shelf behind the backrest or rests in a depression when the two pieces are at their maximum separation. Apart from the fact that this conventional arrangement requires a special configuration of the storage shelf to provide a depression, with the result that the storage shelf cannot be configured in the normal way for its usual function, the design of the headrest itself is complicated by its two-piece construction and by the relative mobility of the two pieces. In this prior art arrangement, the two-piece construction of the headrest is provided to permit vertical adjustment of the headrest regardless of its proximity to the head of the vehicle occupant to be protected which can be adjusted by inclination of the headrest.
Another conventional headrest arrangement, described in German Offenlegungsschrift No. 31 36 648, has a backrest formed with a flat depression into which the headrest fits in its storage position. The headrest can be swung upward from the storage position into its operating position about a fixed axis, for example, in response to activation of an electric switch integrated in the seat cushion. The upward swinging motion is motorized by a pinion-and-sector drive connection. A disadvantage of this prior art arrangement, which has a one-piece headrest structure in contrast to the two-piece structure described in the reference discussed above, is that the height of the headrest cannot be adjusted and thereby adapted to the head position of a particular occupant.
German Offenlegungschrift No. 33 32 729 discloses a headrest with a non-fixed axis of swing by which the headrest is moved between a storage position in which it is located in a depression of the storage shelf and an operative position along curvilinear rails having the shape of a circular arc attached to the backrest.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a headrest arrangement for a vehicle seat which overcomes disadvantages of the prior art.
Another object of the invention is to provide a headrest arrangement having a simple, one-piece construction which, firstly, will not impair the visual appearance of the back seat in its storage position and, secondly, can be optimally adapted in its operating position to the height of a vehicle occupant.
These and other objects of the invention are attained by providing a headrest arrangement for a vehicle seat which has a one-piece construction with a boomerang shape in side view with the convex side facing the direction of travel of the vehicle.
The boomerang-like shape of the headrest permits full-sized accommodation of the headrest in a depression or recess in the backrest and, with the convex-side of the headrest facing forwardly, the height of the headrest and its proximity to the head of the seat occupant can be adjusted by using suitable couplings to provide optimal conditions in terms of safety engineering. Thus, the setting of the height of the headrest and its proximity to the head of the occupant is selectable by a suitable configuration of a multiple linkage with a view to obtaining empirically optimal pairs of values of these two parameters.
REFERENCES:
patent: 3170725 (1965-02-01), Komorwoski
patent: 3174799 (1965-03-01), Haltenberger
patent: 3186763 (1965-06-01), Ferrara
patent: 3304120 (1967-02-01), Cramer
patent: 3449012 (1969-06-01), Caron
patent: 4351563 (1982-09-01), Hattori
patent: 4576411 (1986-03-01), Kitamura
patent: 4623166 (1986-11-01), Andres et al.
patent: 4711494 (1987-12-01), Duvenkamp
patent: 4822102 (1989-04-01), Duvenkamp
patent: 4865388 (1989-09-01), Nemoto
patent: 5026120 (1991-06-01), Takeda et al.
patent: 5642918 (1997-07-01), Sakamoto et al.
patent: 5669668 (1997-09-01), Leuchtmann
patent: 6045181 (2000-04-01), Ikeda et al.
patent: 6113192 (2000-09-01), Schneider
patent: 3020558 (1981-12-01), None
patent: 31 36 648 (1983-03-01), None
patent: 33 32 729 (1985-03-01), None
patent: 3545142 (1987-06-01), None
patent: 39 12 403 (1990-10-01), None
patent: 4126518 (1993-02-01), None
patent: 42 27 697 (1994-02-01), None
patent: 94 17 320 (1995-02-01), None
patent: 0238770 (1987-09-01), None
patent: 2106380 (1983-04-01), None
patent: 21 32 479 (1984-07-01), None
Baker & Botts LLP
Cuomo Peter M.
Volkswagen AG
White Rodney B.
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