Patent ID: 8801103
Filing Date: 2014-08-12
Classification: B60N

Abstract:
1. An extendible and retractable head rest system for a motor vehicle seat, comprising: a head rest coupled to a linkage; an actuator coupled to the linkage; the linkage including an offset drive link that upon the actuator being actuated to extend the head rest system to an operative position, the linkage moves the head rest up and forward, and upon the actuator being actuated to retract the head rest system to an inoperative position, the linkage moves the head rest back and down; a sleeve disposed in a seat back of the vehicle seat; a hollow slider disposed in the sleeve for reciprocal movement therein; a drive rod coupled to the actuator and having an end to which the offset drive link of the linkage is attached, the drive rod received in the sleeve for reciprocal movement therein; the linkage having an inner link having upper and lower opposed ends, a front link having opposed ends, a top link having front and back opposed ends, and a back link having opposed ends; a mid section of the front link rotatably coupled to the slider; the offset drive link having a forward offset end that is forwardly offset from where the front link is rotatably coupled to the slider, the lower opposed end of the inner link rotatably coupled to the forward offset end of the offset drive link and the upper opposed end of the inner link rotatably coupled to one of the opposed ends of the front link such that the inner link extends upwardly from the offset drive link and inwardly into the slider; the top link extending horizontally and the other opposed end of the front link rotatably coupled to a mid section of the top link, the head rest coupled to a front end of the top link; and one of the opposed ends of the back link rotatably coupled to the back opposed end of the top link and the other opposed end of the back link rotatably coupled to a rear, upper end of the slider.