Patent ID: 6702388
Filing Date: 2004-03-09
Classification: A47C,A63B,Y10S

Abstract:
A ball chair with a securing device comprising:a seat (10) having a seat plate with a top face (11), a bottom face, a front edge, and a rear edge; multiple legs (12) attached to the bottom face of the seat plate to support the seat plate; a passage (15) defined in the top face (11) of the seat plate; and a backrest (14) upwardly extending from the rear edge of the seat plate; a ball-shaped cushion (20) made of resilient bladder and partially received inside the passage (15) to rest on the seat; and a securing device composed of a guard rod (30) with two ends (31) erecting at the front edge of the seat plate to hold the ball-shaped cushion (20) with the backrest (14) and the seat plate.