Patent ID: 9554652
Date: 2017-01-31
CPC Classifications: A47C

Claim:
1. A chair comprising a separate seat and back which are adjustable among a plurality of positions, including a plurality of reclined positions of the back, and a chair frame for supporting the seat and back above a surface, the chair further comprising a subassembly including a seat frame, a drive frame, and a yoke frame, the seat, drive and yoke frames inter-coupled by a plurality of pivot links for floating mobility of the seat frame upon the yoke frame, and wherein the drive frame is connected to the chair back, the yoke frame is connected to the chair frame so as to be stationary relative to the seat frame and the drive frame during relative movement of the seat and drive frames, and the seat frame supports the chair seat; and the plurality of pivot links comprise: wherein, in movement of the chair back into any one of the plurality of reclined positions thereof by an occupant seated in the chair, the drive frame urges movement of the seat frame in directions both horizontally away from, and vertically upwardly relative to, the yoke frame as the chair seat is simultaneously moved into a corresponding one of the plurality of positions thereof.