Patent ID: 11969094
Assignee: MILLERKNOLL, INC.
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 18:
19. A chair comprising:
a base defining a vertical axis;
a receptacle coupled to an upper end of the base;
a seat shell forming a seat surface and a bottom surface; and
a back shell forming a back surface, the back shell including an extension extending from the back surface to the receptacle under the seat shell; and
a tilt housing secured to the bottom surface of the seat shell;
wherein either the receptacle or the tilt housing includes a first pin and a second pin, the first pin positioned adjacent a forward end thereof, the second pin positioned adjacent a rearward end thereof;
wherein the other of the receptacle or the tilt housing defines a first track that receives the first pin and a second track that receives the second pin, the first track extending along a first longitudinal axis that is oriented at a first angle relative to the vertical axis, the second track extending along a second longitudinal axis that is oriented at a second angle relative to the vertical axis, the second angle being different than the first angle;
wherein the chair is movable from an upright position to a backwardly inclined position when a force is applied to the back shell, wherein in the backwardly inclined position, the extension is elastically deformed in such a manner that the extension generates a counter force to return the chair to the upright position.