An adjustable headrest that provides both support and comfort to the user and one that can be used in connection with furniture including household and office furniture and also in connection with various types of passenger vehicles. The headrest includes slide means for permitting easy height adjustment of the headrest and also includes locking means for securely locking the headrest in a desired elevated position. Further, the headrest includes easily adjustable, wing-like, side-support members that are pivotally connected to a centrally located, vertically adjustable head support member by means of constant torque hinges and also includes easily adjustable chin support members that are pivotally connected to the side support members by means of constant torque hinges.
BACKGROUND OF THE INVENTION
This is a Continuation-In-Part application of application Ser. No. 09/886,924, filed Jun. 20, 2001, which is a Continuation-In-Part of application Ser. No. 09/665,992, filed Sep. 20, 2000, now U.S. Pat. No. 6,250,716.
A motor-adjustable head rest for operating tables comprises a head plate (12) which is arranged at one end of a curved support shaft (24) which, in a plane which is perpendicular with respect to the axis of curvature, is guided in an adjustable manner on a support between three rollers (26, 28, 30) which are spaced from one another in the direction of adjustment, which support can be connected to the operating table. The tracks (32, 34, 36) for the rollers (26, 28, 30) which are formed on the support shaft (24) are shaped such that their instantaneous curvature centers in each position of the support shaft (24) coincide with the instantaneous center of rotation of the head movement during the lifting and the lowering of the patient's head (14) resting on the head plate (12).
An adjustable headrest for use with furniture and vehicle seats that includes novel slide mechanisms for permitting easy vertical and horizontal adjustments of the headrest relative to the seat. The headrest also includes wing-like side support members that are pivotally connected to horizontally adjustable slide mechanisms by constant torque hinges. Additionally, the headrest includes a mechanism for permitting pivotal movement of the entire headrest relative to the seat connector which connects the headrest to the seat.
A headrest support assembly capable of moving a headrest simultaneously in an up/down and fore/aft position. The headrest support assembly is located in a seat back and includes a headrest frame mounted on a support bracket, the support bracket includes a first and second guide track spaced apart from one another. Each guide track defines a substantially vertical first channel and a curved second channel therein. A first and second support pillar is mounted to the headrest frame. These first and second support pillars are located adjacent to the first and second guide track, respectively. A first and second guide roller is located on each of the first and second support pillars. The first guide roller is positioned within the first channel and the second guide roller is positioned within the second channel of the respective guide tracks.
High chairs and methods to use high chairs are disclosed. An example high chair includes a frame, a seat, a tray positioned a distance above the seat, and an actuator to adjust the distance between the seat and the tray.
