Patent ID: 7156456

Claim:
A foldable chair comprising: a supporting shaft assembly adapted for standing on ground and having two parallel rockers; multiple parallel transverse shafts connecting with and mounted between the rockers; a frame assembly having two seat bars, and each seat bar having a proximal end; and a distal end; a backrest bar having two ends pivotally mounted respectively on the proximal ends of seat bar; and two outer sides; a foot bar mounted pivotally on the seat bars and having two ends; two armrests mounted on the backrest bar above the seat bars and each armrest having a proximal end pivotally mounted on one of the outer sides of the backrest bar; and two adjusting devices connecting and mounted between the armrests and the foot bar and each selectively fastening one of the armrests securely on the foot bar or pivotally connecting one of the armrests with a corresponding one of the foot bars to adjust an angle between the corresponding armrest and the foot bar; a connecting shaft assembly having two front shafts, and each front shaft having a lower end pivotally mounted on the rocker; and an upper end pivotally mounted on the seat bar; two positioning boards securely mounted respectively on the rockers and each positioning board having a detent defined in the positioning board; a fastening shaft having two ends selectively engaging in the detents of the positioning boards; two rear shafts being hollow and each rear shaft having a lower end pivotally mounted on one of the positioning boards; an upper end pivotally mounted on the proximal end of one of the seat bars; two openings being longitudinal, aligned with each other, corresponding to the detent of a corresponding positioning board, formed through the rear shaft and allowing one end of the fastening shaft to extend through the openings and selectively move along the openings; and a cushion mounted between the backrest bar, the seat bars and the foot bar.