Patent ID: 9156385
Filing Date: 2015-10-13
Classification: B60N

Abstract:
1. An adjustable arm rest attachment mechanism for use with a seat and an arm rest that is configured to support an arm of an occupant of the seat in a position within an adjustment zone, the seat including a seat frame and the arm rest including an arm rest support member, the adjustable arm rest attachment mechanism comprising: an outer bearing that is non-rotatably fixed to the seat frame and that defines a first guide groove; an inner bearing that is non-rotatably fixed to the arm rest support member and that defines a second guide groove, the inner bearing being rotatable relative to the outer bearing and being disposed over the outer bearing such that at least a portion of the second guide groove overlaps at least a portion of the first guide groove; and a pin that extends through the second guide groove and into the first guide groove, the pin and the first and second guide grooves being configured such that, if the arm rest is rotated downward in the adjustment zone, then wall surfaces of the first guide groove selectively engage and disengage the pin, and simultaneously, wall surfaces of the second guide groove selectively engage and disengage the pin, thereby creating a varying frictional force capable of impeding further rotation of the arm rest.