초록 ▼

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

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.

대표청구항 ▼

In an automobile driver or passenger seat, said seat adjustable in the lengthwise direction of the vehicle and having a backrest, and a headrest supported on said backrest and vertically adjustable in relation thereto, the improvement comprising means for adjusting automatically the position of said

In an automobile driver or passenger seat, said seat adjustable in the lengthwise direction of the vehicle and having a backrest, and a headrest supported on said backrest and vertically adjustable in relation thereto, the improvement comprising means for adjusting automatically the position of said headrest in response to lengthwise movement of said seat for moving said headrest upwardly away from said backrest when said seat is moved backward, and for moving said headrest downwardly when said seat is moved forward. An automobile seat according to claim 1, wherein said seat includes a safety belt means associated therewith, and said safety belt means are attached at one end to said seat on said headrest thereby to be adjustable in response to the longitudinal position of the seat.