Automobile passenger seat with an automatically positioned headr

Details Automobile passenger seat with an automatically positioned headr Automobile passenger seat with an automatically positioned headr

1979-03-01

1981-08-25

McCall, James T.

Chairs and seats

Body or occupant restraint or confinement

Safety belt or harness; e.g., lap belt or shoulder harness

296 65R, 297 61, 297216, 297410, B60R 2110, A62B 3500

Patent

active

042855454

ABSTRACT:
An automobile driver or passenger seat which is adjustable in the lengthwise direction of the vehicle and has a backrest and headrest supported on the backrest and vertically adjustable in relation thereto. The position of the headrest is adjusted automatically to its optimum position in response to the back and forth movement of the seat, for moving the headrest upwardly away from the backrest when the seat is moved backward, and for moving the headrest downwardly when the seat is moved forwardly. Thus, the headrest will automatically be adjusted to the correct height of the passenger occupying the seat, as he adjusts the position of the seat itself. In one form of the invention, the adjustment mechanism is hydraulic and includes a pair of hydraulic cylinders, one cylinder actuated in response to movement of the seat, and the other cylinder, attached to the headrest, actuated in response to movement of the piston in the first piston and cylinder unit. In other forms of the invention, mechanical actuating means are shown and described.

REFERENCES:
patent: 2181465 (1939-11-01), Schneider
patent: 2985229 (1961-05-01), Shamblin
patent: 3427073 (1969-02-01), Downs et al.
patent: 3454303 (1969-07-01), Dangauthier
patent: 3471198 (1969-10-01), Homier et al.
patent: 3712666 (1973-01-01), Stoll
patent: 3888540 (1975-06-01), Protz
patent: 3942835 (1976-03-01), Harrison
patent: 3958827 (1976-05-01), Re
patent: 4040661 (1977-08-01), Hogan et al.
patent: 4222608 (1980-09-01), Maeda

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