Patent ID: 8540315

Claim:
A nesting chair comprising: a base including a straight transverse member fixedly interconnected directly thereto and having a medial portion located between a pair of spaced outer ends; a backrest and seat interconnected with the base; a seat rotation mechanism disposed between the base and the seat configured to allow the seat to rotate from a seating position to an upwardly rotated nesting position, wherein the seat rotation mechanism includes a first bearing area defined by and formed within an underside of the seat, a second bearing area defined by a separate bearing member, wherein the first and second bearing areas are located on opposite sides of and rotatably engaged with an outer cylindrical surface of the medial portion of the transverse member, a retainer arrangement interconnected with the bearing member and seat to secure the bearing member to the seat with the transverse member therebetween, wherein the first and second bearing areas and the seat are rotatable about the transverse member from the initial seating position to the upwardly rotated nesting position to enable the nesting chair to be nested with a plurality of like chairs, wherein the transverse member is provided with a stop engageable with the seat for maintaining the seat in the seating position, wherein the first and second bearing areas each include a bearing collar segment that includes a semi-circular continuous mating slot defined by a pair of spaced walls, wherein the bearing collar segments mate with each other such that the bearing collar segments and the mating slots fully surround the outer surface of the transverse member; and a roll pin for maintaining a centering position and preventing lateral movement of the seat relative to the transverse member, wherein the roll pin extends through the medial portion of the transverse member and has outer end portions that project into and are received within the mating slots of the bearing collar segments, wherein the transverse member is circumferentially surrounded between the first and second bearing areas and the seat is rotatable about the transverse member during which rotation the outer end portions of the roll pin travel within the mating slots of the bearing collar segments.