Abstract: A retractable headrest is movable between an extended position for protecting a passenger and a retracted position for improving rearward visibility. In a first embodiment, the headrest is positioned below a stretchable fabric panel which allows a headrest shell to be raised into the extended position by stretching the panel. A second embodiment incorporates an extending cushion that can be moved between the extended and retracted positions by an extending arm. A third embodiment incorporates a support frame that can be folded or bowed by a drive mechanism to move between the retracted and extended positions. A fourth embodiment is a hybrid between the second and third embodiments.

Abstract: A retractable headrest is movable between an extended position for protecting a passenger and a retracted position for improving rearward visibility. In a first embodiment, the headrest is positioned below a stretchable fabric panel which allows a headrest shell to be raised into the extended position by stretching the panel. A second embodiment incorporates an extending cushion that can be moved between the extended and retracted positions by an extending arm. A third embodiment incorporates a support frame that can be folded or bowed by a drive mechanism to move between the retracted and extended positions. A fourth embodiment is a hybrid between the second and third embodiments.

Abstract: A retractable headrest is movable between an extended position for protecting a passenger and a retracted position for improving rearward visibility. In a first embodiment, the headrest is positioned below a stretchable fabric panel which allows a headrest shell to be raised into the extended position by stretching the panel. A second embodiment incorporates an extending cushion that can be moved between the extended and retracted positions by an extending arm. A third embodiment incorporates a support frame that can be folded or bowed by a drive mechanism to move between the retracted and extended positions. A fourth embodiment is a hybrid between the second and third embodiments.

Abstract: In combination with support structure attachable to an upper portion of the user's head, the improvement comprising a first loudspeaker carried by the support structure in offset, proximate relation to the ear opening of one of the user's ears, the loudspeaker having an input to receive electrical signals from a signal source; the speaker having an audio output side, and the offset relation characterized in that the output side faces toward the ear opening and has spacing from the opening by an amount between about 1/2 and 1 inch when the support structure is attached to the user's head; the support structure including an ear stem of eyeglasses, and the support structure including a closed loop sleeve on and having slidable connection with the stem, whereby the sleeve is adjustably slidable along the stem and rotatable thereabout to bring the loudspeaker into a position corresponding to the offset proximate relation to the ear opening, to be retained in the position, the sleeve being resiliently deformable an