Patent ID: 6106064
Filing Date: 2000-08-22
Classification: A47C

Abstract:
A chair, comprising:a base having feet for supporting said chair in an upright position;a seat;a mounting shaft to which said seat is coupled, said mounting shaft having a longitudinal axis of rotation;a hollow shaft column for accommodating said mounting shaft and fixed to said mounting shaft against relative rotation thereof, one end of said mounting shaft extending beyond a free end of said hollow shaft column proximal said base;a shaft coupling for coupling said mounting shaft to said base, said shaft coupling including means for allowing said mounting shaft to swivel relative to said base about said axis of rotation, said shaft coupling further including means for allowing said mounting shaft to tilt relative to a vertical orientation of said chair to a predetermined degree in a forward direction and sideward directions of said seat, and including means for substantially preventing said mounting shaft from tilting in a rearward direction of said seat; and,resilient means biasing said mounting shaft away from and into a substantially vertical orientation with respect to said base, said resilient means extending about said one end of said mounting shaft and extending between said base and said hollow shaft column.